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Note: This page contains sample records for the topic "royal dutch shell" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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1

THE PERFORMANCE OF SMDS DIESEL FUEL MANUFACTURED BY SHELL'S GtL TECHNOLOGY  

DOE Green Energy (OSTI)

The Royal Dutch/Shell Group's (Shell's) Gas to Liquids (GtL) technology, better known as the Shell Middle Distillate Synthesis (SMDS) process, converts natural gas into diesel and other products via a modem improved Fisher-Tropsch synthesis. The diesel cut has very good cetane quality, low density, and virtually no sulphur and aromatics; such properties make it valuable as a diesel fuel with lower emissions than conventional automotive gas oil.

Clark, Richard H.

2000-08-20T23:59:59.000Z

2

Shell India Pvt Ltd | Open Energy Information  

Open Energy Info (EERE)

India Pvt Ltd India Pvt Ltd Jump to: navigation, search Name Shell India Pvt. Ltd. Place New Delhi, Delhi (NCT), India Sector Services, Solar Product Delhi-based subsidiary of Royal Dutch Shell having interests in natural gas (LNG), liquefied petroleum gas (LPG), lubricants and bitumen. The firm also owns a Technology and financial shared services center. The firm is also operating in solar energy. References Shell India Pvt. Ltd.[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Shell India Pvt. Ltd. is a company located in New Delhi, Delhi (NCT), India . References ↑ "Shell India Pvt. Ltd." Retrieved from "http://en.openei.org/w/index.php?title=Shell_India_Pvt_Ltd&oldid=350907"

3

Nepal: Beyond Royal Rule  

E-Print Network (OSTI)

Report N°99, Towards a Lasting Peace in Nepal: The Constitutional Issues, 15 June 2005. In the months following the 2005 coup, international pressure had some effect. Most notably, it left the royal government in an awkward limbo -- prevented from... "King cuts civil service reservations for indigenous peoples", Weekly Indigenous News, 26 August 2005, available at http://us.oneworld.net. 11 "Parties should be declared anti-national", The Kathmandu Post, 3 July 2005. Nepal: Beyond Royal Rule...

International Crisis Group

2005-09-15T23:59:59.000Z

4

EA-342 Royal Bank of Canada | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

2 Royal Bank of Canada EA-342 Royal Bank of Canada Order authorizing Royal Bank of Canada to export electric energy to Canada EA-342 Royal Bank of Canada More Documents &...

5

Royal Wind | Open Energy Information  

Open Energy Info (EERE)

Wind Wind Jump to: navigation, search Name Royal Wind Place Denver, Colorado Sector Wind energy Product Vertical Wind Turbines Year founded 2008 Website http://www.RoyalWindTurbines.c Coordinates 39.7391536°, -104.9847034° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.7391536,"lon":-104.9847034,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

6

The fireship and its role in the Royal Navy  

E-Print Network (OSTI)

Fireships are vessels intentionally set on fire and launched against an enemy ship in order to bum it. At their prime in the age of cannon-armed sailing warships, they were potentially the most powerful weapon in the hands of the English Admiralty and could wreak havoc like no other vessel. After their use helped the English defeat the Spanish Armada in 1588, fireships became an important element of the Royal Navy and other European fleets and remained so until the Battle of Navarino in 1827. Incendiary vessels were not the most important vessels in the fleet, but they did have an important role to play. Modem fireships probably emerged in the Royal Navy during the 1630s; the first recorded example is Andrew and John, which sailed for the Earl of Warwick in 1643 during the English Civil War. Fireships grew in prominence quickly, and by the Anglo-Dutch wars, were common elements in all major European fleets. They would ebb and flow in importance for the next 150 years until Thais, the last English fireship to sail with the Royal Navy, was converted to a ship sloop in 1808. The story of fireships can be seen in an examination of how they were built, manned, used in times of war and peace, and what contemporaries thought of them. There are numerous contemporary records which discuss fireships including logs and journals of those who served in the Royal Navy, line drawings, ship models, and other written sources. This thesis will discuss both the specific elements and a general history of modem fireships. Specific aspects consist of fireship construction and design, especially the method of placing incendiaries within the ship, and unique elements, which include devices to spread flames throughout the vessel as quickly as possible. The general history will discuss the size, history, and commanders of each of the over 300 fireships which sailed in the Royal Navy as well as an equivalent for the careers of the over 700 captains who sailed them.

Coggeshall, James Lowell

1997-01-01T23:59:59.000Z

7

Royal Centurion: Proposed Penalty (2012-CE-3608)  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Royal Centurion, Inc. Royal Centurion, Inc. ( dchum idifiers) ) ) ) ) ) Case Number: 2012-CE-3608 NOTICE OF PROPOSED CIVIL PENALTY Date issued: August 29, 2012 Number of alleged violations: 730 (2 basic models; 365 days) Maximum possible assessment: $146,000 Proposed civil penalty: $14,600 The U.S. Department of Energy ("DOE") Office of the General Counsel, Office of Enforcement, alleges that Royal Centurion, Inc. ("Royal Centurion") has violated certain provisions of the Energy Policy and Conservation Act, 42 U.S.C. § 6291 er seq. ("the Act"), and 10 C.P.R. § 429.12. Specifically, DOE alleges: 1. Royal Centurion has manufactured 1 a variety of dehumidifiers, including basic models BDH-550 and BDH-450. 2. Royal Centurion has distributed for at least 365 days/ and continues to distribute, basic

8

EA-342-A Royal Bank of Canada | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

-A Royal Bank of Canada EA-342-A Royal Bank of Canada Order authorizing Royal Bank of Canada to export electric energy to Canada. EA-342-A RBC (CN).pdf More Documents &...

9

The Dutch Elm Disease  

NLE Websites -- All DOE Office Websites (Extended Search)

Dutch Elm Disease Dutch Elm Disease Nature Bulletin No. 411-A March 20, 1971 Forest Preserve District of Cook County George W. Dunne, President Roland F. Eisenbeis, Supt. of Conservation THE DUTCH ELM DISEASE The American elm, far and away our most popular and important shade tree, is facing its most threatening enemy, the Dutch Elm Disease. A large part of them seem to be doomed unless up-to-date methods of control are used. In New England the appearance of whole towns has been changed by the loss of gigantic elms along entire streets. This same havoc is being repeated in most eastern states and, now, as far west as Missouri. The first diseased tree in Illinois was found downstate fifteen years ago. Since then, the infection has spread over most of the state, reaching the Chicago region in 1954.

10

Dutch Book Arguments 1. Introduction  

E-Print Network (OSTI)

Dutch Book Arguments Alan Hájek 1. Introduction Beliefs come in varying degrees. I am more, or credences, with numerical values. Dutch Book arguments purport to show that there are rational principles that putatively govern rational subjective probabilities. Dutch Book arguments assume

Fitelson, Branden

11

Royal Centurion: Order (2012-CE-3608)  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Royal Centurion, Inc. Royal Centurion, Inc. Respondent Issued: October 2, 2012 BEFORE THE U.S. DEPARTMENT OF ENERGY WASHINGTON, D.C. 20585 ) ) ) ) ) ORDER Case Number: 2012-CE-3608 By the General Counsel, U.S. Department of Energy: I. In this Order, I adopt the attached Compromise Agreement entered into by the U.S. Department of Energy ("DOE") and Royal Centurion, Inc. ("Respondent"). The Compromise Agreement resolves the case initiated to pursue a civil penalty for violations of the compliance certification requirements located at 10 C.F.R. § 429.12. 2. DOE and Respondent have negotiated the terms of the Compromise Agreement that resolves this matter. A copy of the Compromise Agreement is attached hereto and incorporated by reference. 3. After reviewing the terms of the Compromise Agreement and evaluating the facts

12

Port Royal, Jamaica, and the slave trade  

E-Print Network (OSTI)

In the eighteenth century, the British Empire rose to an eminent role in transatlantic slave trade. British ships are thought to have transported more individuals into bondage during this century than in any other period in the history of human existence. Arguably the wealthiest city in the British colonies of the New World, Port Royal, Jamaica, was an important center of the maritime slave trade. This thesis concerns the role of the slave trade in the maritime community of Port Royal during the later half of the seventeenth century and the early eighteenth century, a time when Port Royal was at its commercial peak and the British slave trade was undergoing its greatest development. Primary and secondary sources provide a basis for understanding the conduct of the slave trade in Port Royal. Primary documents, which include official records, personal accounts, correspondence, probate inventories, wills and records of deeds and grants, reveal information beyond census and volume of the trade. These documents afford the opportunity to study Port Royal's slave trade on an individual level. The documents record the various participants in the trade, such as slaves, traders and purchasers, agencies and agents, and investors, so that relationships and roles can be assessed and the nature and conduct of the trade can be interpreted. Underwater excavation of the ship Henrietta Marie has yielded a significant representative collection of the slave trade's material culture. Wrecked at the turn of the eighteenth century in the Florida Keys, Henrietta Marie had just quit Port Royal after off-loading her human cargo. The artifact collection of shackles, ship's equipment and trade goods represents the trappings of the maritime slave trade. Particularly, the shackles are a grim reminder of the trade's more brutal aspects. Comparative analysis of this collection with shackles recovered from other sites reveals the role of these devices in the slave trade.

Johnson, David A

2000-01-01T23:59:59.000Z

13

STATEMENT OF CONSIDERATIONS REQUEST BY BP AMERICA, INC., FOR...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

goals of this project, a team of nine major international energy companies including Chevron, Norsk Hydro, Royal DutchShell, Statoil, Suncor Energy, Pan Canadian Resources, ENI...

14

Taylor Elected to Royal Society of London  

NLE Websites -- All DOE Office Websites (Extended Search)

28 May 1997 28 May 1997 Taylor Elected to Royal Society of London Richard Taylor, physics professor at the Stanford Linear Accelerator Center and 1990 Nobel Prize winner, was recently elected a Fellow of the Royal Society of London, an independent scientific academy founded in 1660 by Christopher Wren, Robert Boyle and Robert Moray. Each year forty new Fellows are elected by merit, not field, and membership is limited to those who are citizens of the Great Britain or the British Commonwealth. Up to six foreign members may also be elected each year. The Society began with the aim of promoting public understanding of science and that aim continues with a broad range of services such as meetings, exhibits and scientific exchanges. The Society motto "Nullius in Verba"

15

Royal Center, Indiana: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

with form History Share this page on Facebook icon Twitter icon Royal Center, Indiana: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates...

16

Nepal: Responding to the Royal Coup  

E-Print Network (OSTI)

to strengthen the state in order that it can develop a political, economic and military strategy to defend itself against a violent insurgency and recover the ground it has lost in the last several years. It does not address in detail the longer-term issue... -based political, security and socio-economic strategy to address not only the insurgency but also the underlying issues that have fuelled it. To achieve these, donors should immediately implement a range of measures to pressure the royal government. Instead...

International Crisis Group

2005-02-24T23:59:59.000Z

17

EA-330 The Royal Bank of Scotland plc | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Bank of Scotland plc EA-330 The Royal Bank of Scotland plc Order authorizing The Royal Bank of Scotland plc to export electric energy to Canada EA-330 The Royal Bank of Scotland...

18

EA-331 The Royal Bank of Scotland plc | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Bank of Scotland plc EA-331 The Royal Bank of Scotland plc Order authorizing The Royal Bank of Scotland plc to export electric energy to Mexico EA-331 The Royal Bank of Scotland...

19

EA-331-A The Royal Bank of Scotland plc | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Bank of Scotland plc EA-331-A The Royal Bank of Scotland plc Order authorizing The Royal Bank of Scotland plc to export eelctric energy to Mexico EA-331-A The Royal Bank of...

20

EA-330-A The Royal Bank of Scotland plc | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Bank of Scotland plc EA-330-A The Royal Bank of Scotland plc Order authorizing The Royal Bank of Scotland plc to export electric energy to Canada EA-330-A The Royal Bank of...

Note: This page contains sample records for the topic "royal dutch shell" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Royal Agricultural and Horticultural Society of South Australia | Open  

Open Energy Info (EERE)

and Horticultural Society of South Australia and Horticultural Society of South Australia Jump to: navigation, search Name Royal Agricultural and Horticultural Society of South Australia Place South Australia, Australia Zip SA 5034 Sector Buildings, Solar Product South-Australia-based agricultural and horticultural society. The society is installing 1MW solar power systems on six separate buildings. References Royal Agricultural and Horticultural Society of South Australia[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Royal Agricultural and Horticultural Society of South Australia is a company located in South Australia, Australia . References ↑ "Royal Agricultural and Horticultural Society of South

22

Town of Front Royal, Virginia (Utility Company) | Open Energy Information  

Open Energy Info (EERE)

Town of Front Royal, Virginia (Utility Company) Town of Front Royal, Virginia (Utility Company) Jump to: navigation, search Name Town of Front Royal Place Virginia Utility Id 6803 Utility Location Yes Ownership M NERC Location SERC Activity Distribution Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png Commercial Commercial Dusk to Dawn Light poles Commercial Residential Residential Average Rates Residential: $0.0928/kWh Commercial: $0.0796/kWh References ↑ "EIA Form EIA-861 Final Data File for 2010 - File1_a" Retrieved from "http://en.openei.org/w/index.php?title=Town_of_Front_Royal,_Virginia_(Utility_Company)&oldid=411737"

23

Dutch Pacific Wind Farm | Open Energy Information  

Open Energy Info (EERE)

Dutch Pacific Wind Farm Dutch Pacific Wind Farm Jump to: navigation, search Name Dutch Pacific Wind Farm Facility Dutch Pacific Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Dutch Pacific- LLC Developer Dutch Pacific- LLC Energy Purchaser Southern California Edison Co Location San Gorgonio CA Coordinates 33.9095°, -116.734° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":33.9095,"lon":-116.734,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

24

A Hidden Language – Dutch in Indonesia  

E-Print Network (OSTI)

language –Dutch in Indonesia H.M.J. Maier (UCRiverside)life of the Republik Indonesia: it was another Hari Sumpahcommemorated all over Indonesia, from Sabang to Merauke,

Maier, Hendrik M

2005-01-01T23:59:59.000Z

25

Time Trends in Dutch Children's Mental Health.  

E-Print Network (OSTI)

??This study investigated time trends in Dutch children's and adolescent's mental health problems by comparing population samples from different time periods. From 1983 to 2003,… (more)

Tick, N.T.

2007-01-01T23:59:59.000Z

26

Stockholm Royal seaport prestudy phase (Smart Grid Project) | Open Energy  

Open Energy Info (EERE)

Royal seaport prestudy phase (Smart Grid Project) Royal seaport prestudy phase (Smart Grid Project) Jump to: navigation, search Project Name Stockholm Royal seaport prestudy phase Country Sweden Headquarters Location Stockholm, Sweden Coordinates 59.332787°, 18.064487° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":59.332787,"lon":18.064487,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

27

Royal Pacific: Proposed Penalty (2013-SE-33004) | Department of Energy  

NLE Websites -- All DOE Office Websites (Extended Search)

Proposed Penalty (2013-SE-33004) Proposed Penalty (2013-SE-33004) Royal Pacific: Proposed Penalty (2013-SE-33004) July 5, 2013 DOE alleged in a Notice of Proposed Civil Penalty that Royal Pacific, Ltd. failed to certify ceiling fans, ceiling fan light kits, medium base compact fluorescent lamps, and illuminated exit signs as compliant with the applicable energy conservation standards. DOE regulations require a manufacturer (which includes importers) to submit reports certifying that its products have been tested and meet the applicable energy conservation standards. This civil penalty notice advises the company of the potential penalties and DOE's administrative process, including the company's right to a hearing. Royal Pacific: Proposed Penalty (2013-SE-33004) More Documents & Publications

28

Shell sort  

Science Conference Proceedings (OSTI)

... Probably "Computer Assembler by General Electric". Don Shell worked in the same building, but he was manager of the Systems Analysts. ...

2013-05-08T23:59:59.000Z

29

Analysis of the hollowware pewter from Port Royal, Jamaica  

E-Print Network (OSTI)

Over the past forty years an enormous collection of pewter artifacts has been recovered from the various archaeological excavations at Port Royal, Jamaica, both on land and underwater (Link 1960; Marx 1971; Priddy 1975; Hamilton 1984, 1985, 1987, 1988). Since pewter is rarely found in most archaeological excavations the recovery of, what has come to represent, the largest single collection of 17th-century pewter from a single site is of special significance. These pewter artifacts, most of them recovered in their primary archaeological context, preserved countless aspects of daily life in 17th-century Port Royal. Pewter, like ceramics, possesses distinctive diagnostic characteristics which provide information concerning the maker and/or owner of the pewter, the use of the pewter, and the date and place of manufacture. The focus of this study is the pewter hollowware recovered from the excavations conducted by Robert Marx (1967,1968,1971,1973) and the INA/TAMU excavations directed by Donny Hamilton (1984, 1985, 1987, 1988). Approximately 269 pewter artifacts were recovered from these excavations which included spoons, flatware, hollowware, and miscellaneous pewter. The inclusion of the Marx artifacts allows for a consistency in the analysis of the pewter and of the historical records. The main objective of this study is to compile a catalog of the hollowware which records the form and style of each piece, as well as any diagnostic characteristics. A secondary objective is to analyze 17th-century probate inventories from Port Royal for information concerning pewter ownership and usage. The third objective is to relate patterns of pewter usage to primary motivation for settlement at Port Royal. This is accomplished by comparing and contrasting the Port Royal probate data with data provided by 17th-century probate inventories from Boston, Massachusetts, and Mainland, Jamaica.

Winslow, Debra Lynn

2000-01-01T23:59:59.000Z

30

Just oil? The distribution of environmental and social impacts of oil production and consumption  

E-Print Network (OSTI)

The four super majors—ExxonMobil, Royal Dutch/Shell, BP-2001, ?ve corporations (ExxonMobil, BP-Amoco- Arco, Chevron-involved BP Amoco ExxonMobil Chevron Phillips Petroleum

O'Rourke, D; Connolly, S

2003-01-01T23:59:59.000Z

31

100% petroleum house  

E-Print Network (OSTI)

I am designing a Case Study House to be sponsored by Royal Dutch Shell which utilizes the by-product of oil extraction, petroleum gas, to produce a zero waste, 100% petroleum based house. The motivation of the Case Study ...

Costanza, David (David Nicholas)

2013-01-01T23:59:59.000Z

32

DutchSolar BV | Open Energy Information  

Open Energy Info (EERE)

DutchSolar BV DutchSolar BV Jump to: navigation, search Name DutchSolar BV Place Deventer, Netherlands Sector Solar Product Manufactures the GiraSolar brand of PV solar modules. Coordinates 52.251034°, 6.159899° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":52.251034,"lon":6.159899,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

33

Biomass for the Dutch Chemical Opportunities for agriculture  

E-Print Network (OSTI)

Biomass for the Dutch Chemical Industry Opportunities for agriculture R. Blaauw J. van Haveren E. L International Certification Services EESV according to ISO 9001:2000. Title Biomass for the Dutch Chemical for biomass 18 3.1 General developments 18 3.2 Developments of the Dutch chemical industry towards a bio

Grossmann, Ignacio E.

34

Partial Word Order Freezing in Dutch  

Science Conference Proceedings (OSTI)

Dutch allows for variation as to whether the first position in the sentence is occupied by the subject or by some other constituent, such as the direct object. In particular situations, however, this commonly observed variation in word order is `frozen' ... Keywords: Bidirectional Optimality Theory, Corpus study, Definiteness, Variation, Word order freezing

Gerlof J. Bouma; Petra Hendriks

2012-01-01T23:59:59.000Z

35

Investment and regulation: the Dutch experience  

SciTech Connect

Theoretical studies on the relationship between incentive regulation and investment in network industries generally point out that incentive regulation has a negative impact on investment. However, empirical evidence in this area is scarce. An analysis suggests that in the Dutch electricity and gas networks since 2001, incentive regulation has ensured a more rational and professional approach towards investments, with investment levels coming down somewhat at the start of the regulation but picking up later on. (author)

Haffner, Robert; Helmer, Dorine; van Til, Harry

2010-06-15T23:59:59.000Z

36

Architecture and urbanism in Henri IV's Paris : the Place Royale, Place Dauphine, and Hôpital St. Louis  

E-Print Network (OSTI)

This dissertation concerns the extensive building program which Henri IV undertook in Paris from 1600 to 1610. Focusing on the place Royale (now called the place des Vosges) , the place Dauphine, rue Dauphine, and Pont ...

Ballon, Hilary Meg

1985-01-01T23:59:59.000Z

37

Shale Gas Hydraulic Fracturing in the Dutch Posidonia Shale:.  

E-Print Network (OSTI)

??Recently the oil and gas industry is looking at the Posidonia shale in the Dutch subsurface for production of the unconventional shale gas. This is… (more)

Janzen, M.R.

2012-01-01T23:59:59.000Z

38

Wrought iron hand tools from the underwater archaelogical excavations of colonial Port Royal, Jamaica, C. 1692  

E-Print Network (OSTI)

The written history of Port Royal starts with the European discovery of Jamaica on Columbus' second voyage to the New World and has proven to be rich in shady characters and natural disasters. The English took possession of Jamaica from Spain in 1654 and the city of Port Royal was established soon after. Port Royal, located at the end of the Palisadoes sand spit, a natural barrier roughly six miles long, separates Kingston harbor and the Caribbean Sea. Originally functioning as a protective fortification of the harbor, it became an active harbor and the most economically important English colony in the New World from 1655-1692. Port Royal quickly earned the title of "Wickedest City on Earth" because of its reputation of officially sanctioned privateering and piratical expeditions, and the abundant supply of establishments of ill repute. On Wednesday June 7, 1692 a devastating earthquake struck Port Royal and destroyed a major portion of the city. A total of 33 acres, or 66% of the city, including buildings and people, at the very end of the sand spit, literally sank into the shallow harbor. It was not until the concentrated efforts of the Nautical Archaeology Program (under the direction of Dr. Donny L. Hamilton), The Institute of Nautical Archaeology, and the Jamaican government, started archaeological excavation from 1987-1993, that the real picture of this sunken city emerged. Through the excavation, mapping, and collection, conservation and analysis of artifacts the ghost image was brought back to life and interpreted. A large collection of iron hand tools from this site was preserved. These conserved and replicated artifacts are now available for analysis. This thesis is a continuation of the catalog of hand tools from the Port Royal excavations previously done by Ms. Marianne Franklin. It seeks to link the historical background of these artifacts to tool technology and the history of Port Royal and its tradesmen through the use of historical documents.

Custer, Katie Michelle

2004-01-01T23:59:59.000Z

39

Ocean shell noises  

NLE Websites -- All DOE Office Websites (Extended Search)

Ocean shell noises Name: Rick A Cazzato Location: NA Country: NA Date: NA Question: Why do you here noises when you put a ocean shell to your ear? Does this happen because of...

40

Secure Shell (SSH)  

NLE Websites -- All DOE Office Websites (Extended Search)

Secure Shell (SSH) Name: Rutaiwan Status: Educator Age: 20s Location: NA Country: NA Date: June 2003 Question: What is the Secure Shell (SSH)? What is a strong and weak points of...

Note: This page contains sample records for the topic "royal dutch shell" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Microsoft Word - FOR WEB REMOVE EDIT - Royal Pacific 33004 based on Act One 49001 NPCP  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

(ceiling fans, ceiling fan light kits, medium base compact fluorescent lamps, illuminated exit signs) ) ) ) ) ) ) ) ) Case Number: 2013-SE-33004 NOTICE OF PROPOSED CIVIL PENALTY Date issued: July 5, 2013 Number of alleged violations: 2,555 (7 basic models; 365 days) Maximum possible assessment: $511,000 Proposed civil penalty: $51,100 The U.S. Department of Energy ("DOE") Office of the General Counsel, Office of Enforcement, alleges that Royal Pacific, Ltd. ("Royal Pacific") has violated certain provisions of the Energy Policy and Conservation Act, 42 U.S.C. § 6291 et seq. ("the Act"), and 10 C.F.R. § 429.12. Specifically, DOE alleges: 1. Royal Pacific has manufactured 1 a variety of medium base compact fluorescent lamps

42

Dutch Space BV | Open Energy Information  

Open Energy Info (EERE)

Space BV Space BV Jump to: navigation, search Name Dutch Space BV Place Leiden, Netherlands Zip 2333 Sector Solar Product Leiden-based supplier of subsystems for the European space industry, including the production of solar arrays for spacecraft. Coordinates 52.15457°, 4.49463° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":52.15457,"lon":4.49463,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

43

Multiple shell fusion targets  

DOE Patents (OSTI)

Multiple shell fusion targets for use with electron beam and ion beam implosion systems are described. The multiple shell targets are of the low-power type and use a separate relatively low Z, low density ablator at large radius for the outer shell, which reduces the focusing and power requirements of the implosion system while maintaining reasonable aspect ratios. The targets use a high Z, high density pusher shell placed at a much smaller radius in order to obtain an aspect ratio small enough to protect against fluid instability. Velocity multiplication between these shells further lowers the power requirements. Careful tuning of the power profile and intershell density results in a low entropy implosion which allows breakeven at low powers. For example, with ion beams as a power source, breakeven at 10-20 Terrawatts with 10 MeV alpha particles for imploding a multiple shell target can be accomplished.

Lindl, J.D.; Bangerter, R.O.

1975-10-31T23:59:59.000Z

44

PDSF Shells and Startup Files  

NLE Websites -- All DOE Office Websites (Extended Search)

Shells and Startup Files Shells and Startup Files PDSF Defined Environment When new users are added to the PDSF machines, the shell is set according to the user's request. You can...

45

Hollow spherical shell manufacture  

DOE Patents (OSTI)

A process for making a hollow spherical shell of silicate glass composition in which an aqueous suspension of silicate glass particles and an immiscible liquid blowing agent is placed within the hollow spherical cavity of a porous mold. The mold is spun to reduce effective gravity to zero and to center the blowing agent, while being heated so as to vaporize the immiscible liquid and urge the water carrier of the aqueous suspension to migrate into the body of the mold, leaving a green shell compact deposited around the mold cavity. The green shell compact is then removed from the cavity, and is sintered for a time and a temperature sufficient to form a silicate glass shell of substantially homogeneous composition and uniform geometry.

O' Holleran, Thomas P. (Belleville, MI)

1991-01-01T23:59:59.000Z

46

Hollow spherical shell manufacture  

DOE Patents (OSTI)

A process is disclosed for making a hollow spherical shell of silicate glass composition in which an aqueous suspension of silicate glass particles and an immiscible liquid blowing agent is placed within the hollow spherical cavity of a porous mold. The mold is spun to reduce effective gravity to zero and to center the blowing agent, while being heated so as to vaporize the immiscible liquid and urge the water carrier of the aqueous suspension to migrate into the body of the mold, leaving a green shell compact deposited around the mold cavity. The green shell compact is then removed from the cavity, and is sintered for a time and a temperature sufficient to form a silicate glass shell of substantially homogeneous composition and uniform geometry. 3 figures.

O' Holleran, T.P.

1991-11-26T23:59:59.000Z

47

Dutch Hill/Cohocton Wind Farm | Open Energy Information  

Open Energy Info (EERE)

Dutch Hill/Cohocton Wind Farm Dutch Hill/Cohocton Wind Farm Jump to: navigation, search Name Dutch Hill/Cohocton Wind Farm Facility Dutch Hill/Cohocton Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner First Wind Developer First Wind Energy Purchaser Market Location Steuben County NY Coordinates 42.52342°, -77.500303° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.52342,"lon":-77.500303,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

48

Energy usage/consumption analysis for La Quinta Royale, Corpus Christi, Texas  

SciTech Connect

A detailed analysis is given of energy consumption and energy use profiles for the La Quinta Royale, Corpus Christi, Texas. Data were collected primarily during the heating and cooling seasons and show where energy is used, how much is used, and when it is used. Functional energy use areas are the guest rooms, banquet kitchen, banquet rooms, passenger elevators, ice-maker and soft drink vending machine. Energy use monitored is analyzed in the areas of space heating and space cooling and domestic hot water. (LEW)

1981-12-01T23:59:59.000Z

49

Bash Shell | Argonne Leadership Computing Facility  

NLE Websites -- All DOE Office Websites (Extended Search)

Bash Shell A popular shell provided with the operating system, bash is available as a login shell. To change your login shell use your ALCF personal account page. Version(s):...

50

Stability of charged thin shells  

SciTech Connect

In this article we study the mechanical stability of spherically symmetric thin shells with charge, in Einstein-Maxwell and Einstein-Born-Infeld theories. We analyze linearized perturbations preserving the symmetry, for shells around vacuum and shells surrounding noncharged black holes.

Eiroa, Ernesto F. [Instituto de Astronomia y Fisica del Espacio, C.C. 67, Suc. 28, 1428, Buenos Aires (Argentina); Departamento de Fisica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria Pab. I, 1428, Buenos Aires (Argentina); Simeone, Claudio [Departamento de Fisica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria Pab. I, 1428, Buenos Aires (Argentina); IFIBA, CONICET, Ciudad Universitaria Pab. I, 1428, Buenos Aires (Argentina)

2011-05-15T23:59:59.000Z

51

Mollusk Shell Nacre Ultrastructure Correlates with Environmental...  

NLE Websites -- All DOE Office Websites (Extended Search)

Mollusk Shell Nacre Ultrastructure Correlates with Environmental Temperature and Pressure Mollusk Shell Nacre Ultrastructure Correlates with Environmental Temperature and Pressure...

52

The future of sustainable local energy systems - a case study of the Dutch island Texel.  

E-Print Network (OSTI)

??Current energy systems are expected to transform to more sustainable systems based on renewable resources. In line with this transformation, the Dutch island of Texel… (more)

Jochemsen, J.N.

2011-01-01T23:59:59.000Z

53

Postcolonial Approaches to Portrayals of Dutch and Migrant Window Sex Workers.  

E-Print Network (OSTI)

??In this thesis, I examine the portrayals of Dutch and migrant window sex workers and analyze how such portrayals are often in contradiction with the… (more)

Määttä, A.

2013-01-01T23:59:59.000Z

54

H.M.S. Pallas: historical reconstruction of an 18th-century Royal Navy frigate  

E-Print Network (OSTI)

A 1998 joint survey undertaken by the Institute of Nautical Archaeology and Portuguese authorities located and identified the sunken remains of the Royal Navy frigate HMS Pallas (1757-1783) off of the Azorean island of São Jorge. Physical remains are so limited as to suggest that excavation would likely yield little new information. However, much documentary evidence has been preserved in Admiralty archives. Contemporary treatises about 18th-century British ship construction focus on glossaries of terms, scantling lists and design theory, and include only short sections on frigates insofar as they apply to those topics. They rarely address specific construction aspects. Most current works address individual aspects of ship construction for the period, but provide little significant detail about the frigate as a ship type. All of these works are useful and reliable, however none attempt to combine the ship with the crew, or pursue the complete history of one ship. As the flagship of a prototypical class, intended to address French superiority in cruiser design, it is reasonable to expect that a history of Pallas would exist with some analysis of how successfully these new frigates fulfilled the Royal Navy�s perceived need. However, to date there has been no attempt to consolidate the evidence of her 26-year career. This study provides a comprehensive history of a single ship from perceived need and conceived solution through design and construction. The ship�s logbooks and additional primary sources made it possible to accurately document and analyze Pallas� activities, maintenance, modifications, and ultimately to draw conclusions about the overall effectiveness of the frigate type. I began with basic background information to establish the perceived need for a new frigate type, followed by an examination of the conceived design solution. A partial set of admiralty drafts served as a foundation from which to develop a more complete set of construction plans, a spar plan, and rigging plans. Comprehensive research into life aboard Royal Navy warships of the period provided a social context within which to examine the service history of Pallas. Finally, a review of the maintenance record and the events leading up to her sinking enabled an informed assessment of how well HMS Pallas fulfilled the perceived need for which she was developed.

Flynn, Peter Erik

2005-05-01T23:59:59.000Z

55

Hail to the Vagina -Robert Thurman The famous Indian Buddhist Esoteric Scripture, The Glorious Esoteric Community Royal Tantra  

E-Print Network (OSTI)

Hail to the Vagina - Robert Thurman The famous Indian Buddhist Esoteric Scripture, The Glorious Esoteric Community Royal Tantra (Shri Guhyasamaja Tantraraja), is presented as a revelation granted sensitive, delicate, adamantine matrix of life and bliss. This most advanced esoteric text of the Buddhist

O'Laughlin, Jay

56

WEATHER, p. 2 Volume 132, Number 5 Tuesday, February 21, 2012  

E-Print Network (OSTI)

growing middle class has risen. In response, Mexico's national oil company, Petroleos Mexicanos, knownasPemex for the task. Under Mexico's Constitution, Pemex cannot bring in a foreign partner like Royal Dutch Shell in drilling in chal- lenging waters. Pemex has drilled more than a dozen exploratory deepwater wells since

57

Project EARTH-12-SHELL6: Shell Geoscience Laboratory (2)  

E-Print Network (OSTI)

an increasingly important topic with wide implications for exploitation of unconventional gas reserves, toxic) This studentship is funded by Shell and is part of a larger Shell-supported research project on shale-gas shale (subject to contract) The development of natural fracture systems in fine-grained sediments is becoming

Henderson, Gideon

58

Managing Feedwater Heater Shell Thinning  

SciTech Connect

Thinning of feedwater heater (FWH) shells has become an important issue throughout the U.S. nuclear industry. The thinning occurs primarily in the vicinity of the extraction steam and drain inlet nozzles where two-phase steam/water mixtures enter the heater. The thinning can be general wall thinning over a large area or highly localized thinning in a limited area. Eventually, shell repairs become necessary to ensure integrity of the pressure boundary and personnel safety, and to restore compliance with the ASME pressure vessel code. Ideally, long-term monitoring of the thickness of FWH shells would allow for timely repairs before the wall thickness decreases below the ASME Code minimum wall thickness. However, since most plants did not start inspecting FWH shells until recently, the initial inspection may find shells that are thinned to near or below the ASME Code minimum wall thickness. Because the cost and manpower requirements for shell repairs can be significant, it is imperative that shell repairs provide a long-term solution and that they be implemented as a planned outage evolution. Accordingly, the approach to managing FWH shell thinning must provide sufficient advance warning of the need for repairs while ensuring safe operation until the permanent repair can be implemented. The approach outlined in this paper does both. Establish acceptance criteria to ensure safe, interim operation with thinned shells until a permanent repair can be implemented. Develop contingency plans for interim repairs should the inspections identify thinning below the interim acceptance criteria. Inspect FWH shells during a refueling outage or possibly during planned system outages or power reductions. If necessary, perform interim repairs to ensure safe operation until the next refueling outage. Develop and implement permanent repairs that will prevent shell thinning. (authors)

Simons, John W.; Keating, Robert B. [MPR Associates Inc., 140 Mustang Circle, Simpsonville, SC 29681 (United States)

2002-07-01T23:59:59.000Z

59

Foam shell cryogenic ICF target  

SciTech Connect

A uniform cryogenic layer of DT fuel is maintained in a fusion target having a low density, small pore size, low Z rigid foam shell saturated with liquid DT fuel. Capillary action prevents gravitational slumping of the fuel layer. The saturated shell may be cooled to produce a solid fuel layer.

Darling, Dale H. (Pleasanton, CA)

1987-01-01T23:59:59.000Z

60

How is an egg shell formed?  

NLE Websites -- All DOE Office Websites (Extended Search)

How is an egg shell formed? Name: Tim Location: NA Country: NA Date: NA Question: How is an egg shell formed? Replies: Egg shells are formed by a complex interaction between a...

Note: This page contains sample records for the topic "royal dutch shell" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Shell Solar | Open Energy Information  

Open Energy Info (EERE)

Solar Solar Jump to: navigation, search Name Shell Solar Place The Hague, Netherlands Zip 2501 AN Sector Solar Product Shell Solar is developing non-crystalline PV technology, notably CIS, following the sale of nearly all its crystalline silicon PV operations to SolarWorld in early 2006. References Shell Solar[1] Information About Partnership with NREL Partnership with NREL Yes Partnership Type Uses NREL Research Facilities Partnering Center within NREL National Center for Photovoltaics Partnership Year 2006 LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Shell Solar is a company located in The Hague, Netherlands . References ↑ "Shell Solar" Retrieved from

62

Cosan Shell JV | Open Energy Information  

Open Energy Info (EERE)

Jump to: navigation, search Name Cosan & Shell JV Place Brazil Product Brazil-based bioethanol manufacturing joint venture. References Cosan & Shell JV1 LinkedIn Connections...

63

Optimum rotationally symmetric shells for flywheel rotors  

DOE Patents (OSTI)

A flywheel rim support formed from two shell halves. Each of the shell halves has a disc connected to the central shaft. A first shell element connects to the disc at an interface. A second shell element connects to the first shell element. The second shell element has a plurality of meridional slits. A cylindrical shell element connects to the second shell element. The cylindrical shell element connects to the inner surface of the flywheel rim. A flywheel rim support having a disc connected an outer diameter of a shaft. Two optimally shaped shell elements connect to the optimally shaped disc at an interface. The interface defines a discontinuity in a meridional slope of said support. A cylindrical shell element connects to the two shell elements. The cylindrical shell element has an outer surface for connecting to the inner surface of the flywheel rim. A flywheel rim casing includes an annular shell connected to the central shaft. The annular shell connects to the flywheel rim. A composite shell surrounds the shaft, annular shell and flywheel rim.

Blake, Henry W. (Oak Ridge, TN)

2000-01-01T23:59:59.000Z

64

Insulative laser shell coupler  

DOE Patents (OSTI)

A segmented coaxial laser shell assembly having at least two water jacket sections, two pairs of interconnection half rings, a dialectric break ring, and a pair of threaded ring sections. Each water jacket section with an inner tubular section that defines an inner laser cavity with water paths adjacent to at least a portion of the exterior of the inner tubular section, and mating faces at the end of the water jacket section through which the inner laser cavity opens and which defines at least one water port therethrough in communication with the water jackets. The water paths also define in their external surface a circumferential notch set back from and in close proximity to the mating face. The dielectric break ring has selected thickness and is placed between, and in coaxial alignment with, the mating faces of two of the adjacent water jacket sections. The break ring also defines an inner laser cavity of the same size and shape as the inner laser cavity of the water jacket sections and at least one water passage through the break ring to communicate with at least one water port through the mating faces of the water jacket sections.

Arnold, Phillip A. (Livermore, CA); Anderson, Andrew T. (Livermore, CA); Alger, Terry W. (Tracy, CA)

1994-01-01T23:59:59.000Z

65

DOE/EIS-0458 VOLUME II: APPENDICES DEPARTMENT OF ENERGY LOAN GUARANTEE TO ROYAL BANK OF SCOTLAND FOR  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

8 8 VOLUME II: APPENDICES DEPARTMENT OF ENERGY LOAN GUARANTEE TO ROYAL BANK OF SCOTLAND FOR CONSTRUCTION AND STARTUP OF THE TOPAZ SOLAR FARM SAN LUIS OBISPO COUNTY, CALIFORNIA US Department of Energy, Lead Agency Loan Guarantee Program Office Washington, DC 20585 In Cooperation with US Army Corps of Engineers San Francisco District August 2011 FINAL ENVIRONMENTAL IMPACT STATEMENT APPENDICES TABLE OF CONTENTS Appendix A Public Scoping Appendix B PG&E Connected Action Appendix C Farmlands Correspondence and Analysis Appendix D Visual Simulation Methodology Appendix E Biological Resources, Including Section 7 Consultation Appendix F Cultural Resources, Including Section 106 Consultation Appendix G Draft Wildfire Management Plan

66

Semiclassical environment of collapsing shells  

E-Print Network (OSTI)

We explore in detail the semiclassical environment of collapsing shells of matter, and determine the semiclassical flux measured by a variety of observers. This study is a preliminary step in a broader investigation of thermodynamic properties of the geometry of collapsing objects. Specifically, in this paper we consider spherically symmetric null and timelike collapsing shells which form an event horizon, and calculate the flux measured by observers both inside and outside the shell, and both inside and outside the event horizon, and find nontrivial results in most of the cases. Additionally, we also investigate the environment of a shell which collapses but \\emph{does not} form a horizon, halting at some radius larger than the Schwarzschild radius, and find that such an object generically gives rise to a pulse of radiation which is sharply peaked as it travels inwards and is reflected at the origin, and eventually emerges from the shell in a "thermalized" form. Our results have potential consequences in addressing questions pertaining, e.g. to black hole entropy and backreaction.

Kinjal Banerjee; Aseem Paranjape

2009-09-25T23:59:59.000Z

67

On Closed Shells in Nuclei  

DOE R&D Accomplishments (OSTI)

It has been suggested in the past that special numbers of neutrons or protons in the nucleus form a particularly stable configuration.{sup1} The complete evidence for this has never been summarized, nor is it generally recognized how convincing this evidence is. That 20 neutrons or protons (Ca{sup40}) form a closed shell is predicted by the Hartree model. A number of calculations support this fact.{sup2} These considerations will not be repeated here. In this paper, the experimental facts indicating a particular stability of shells of 50 and 82 protons and of 50, 82, and 126 neutrons will be listed.

Mayer, M. G.

1948-02-00T23:59:59.000Z

68

Thick-Shell Nanocrystal Quantum Dots  

NLE Websites -- All DOE Office Websites (Extended Search)

Thick-Shell Nanocrystal Quantum Dots Thick-Shell Nanocrystal Quantum Dots Thick-Shell Nanocrystal Quantum Dots Colloidal nanocrystal quantum dots comprising an inner core having an average diameter of at least 1.5 nm and an outer shell, where said outer shell comprises multiple monolayers, wherein at least 30% of the quantum dots have an on-time fraction of 0.80 or greater under continuous excitation conditions for a period of time of at least 10 minutes. Available for thumbnail of Feynman Center (505) 665-9090 Email Thick-Shell Nanocrystal Quantum Dots Colloidal nanocrystal quantum dots comprising an inner core having an average diameter of at least 1.5 nm and an outer shell, where said outer shell comprises multiple monolayers, wherein at least 30% of the quantum dots have an on-time fraction of 0.80 or greater under continuous

69

Shell Solar India | Open Energy Information  

Open Energy Info (EERE)

Shell Solar India Shell Solar India Place India Sector Solar Product Shell Solar India was created as Shell's solar energy business in India, but has been acquired by Indian privately-held company Environ Energy-Tech. References Shell Solar India[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Shell Solar India is a company located in India . References ↑ "Shell Solar India" Retrieved from "http://en.openei.org/w/index.php?title=Shell_Solar_India&oldid=350910" Categories: Clean Energy Organizations Companies Organizations Stubs What links here Related changes Special pages Printable version Permanent link Browse properties 429 Throttled (bot load) Error 429 Throttled (bot load)

70

Thick-Shell Nanocrystal Quantum Dots  

NLE Websites -- All DOE Office Websites (Extended Search)

Thick-Shell Nanocrystal Quantum Dots Thick-Shell Nanocrystal Quantum Dots Colloidal nanocrystal quantum dots comprising an inner core having an average diameter of at least 1.5 nm...

71

Shell structures for biogas plants  

Science Conference Proceedings (OSTI)

The shell structures designed for biogas plants of the fixed-dome type by the Bremen Overseas Research and Development Association are described. Biogas digesters of the design described have been successfully tested in Rwanda and India without structural or contractural problems.

Sasse, L.

1982-01-01T23:59:59.000Z

72

Generation of Dutch referring expressions using the D-TUNA corpus Marissa Hoek (m.d.hoek@student.utwente.nl)  

E-Print Network (OSTI)

Generation of Dutch referring expressions using the D-TUNA corpus Marissa Hoek (m is done on the Dutch version of the TUNA-corpus, which contains annotated human-produced descriptions the lexical choice from the D-TUNA corpus, and used templates generated from the corpus which specified

Vellekoop, Michel

73

Doc.381, 'Nose flutes and shell trumpets'  

E-Print Network (OSTI)

flutes and shell trumpets Translation of title Description (to be used in archive entry) Audio recording of nose flutes and shell trumpets, 15 min 51 seconds 1) Nose flute, fangofango - Copy of BBC recording (Library number 20468) made in December 1953... , recorded in July 1957, in Suva by the Fiji Broadcasting commission. Arranged recording [6.25-9.20] 4) Shell trumpet. Blowing of the triton shell or davui, at Rakiraki, Kadavu, October 1955. Arranged recording [9.34-9.56] 5) Shell trumpet. Blowing...

Roth, George Kingsley

74

809New Zealand Journal of Geology & Geophysics, 2004, Vol. 47: 809821 00288306/04/47040809 The Royal Society of New Zealand 2004  

E-Print Network (OSTI)

809New Zealand Journal of Geology & Geophysics, 2004, Vol. 47: 809­821 0028­8306/04/4704­0809 © The Royal Society of New Zealand 2004 Stable isotope values in modern bryozoan carbonate from New Zealand Department of Geology Dickinson College P.O. Box 1773 Carlisle, PA 17013, USA WILLIAM P. PATTERSON Department

Patterson, William P.

75

Microsoft Word - FOR WEB - Royal Pacific 33004 based on Act One 49001 Order-CA-Pymt Instr  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Respondent ) ) ) ) ) Case Number: 2013-SE-33004 ORDER By the General Counsel, U.S. Department of Energy: 1. In this Order, I adopt the attached Compromise Agreement entered into by the U.S. Department of Energy ("DOE") and Royal Pacific, Ltd. ("Respondent"). The Compromise Agreement resolves the case initiated to pursue a civil penalty for violations of the compliance certification requirements located at 10 C.F.R. Part 429. 2. DOE and Respondent have negotiated the terms of the Compromise Agreement that resolves this matter. A copy of the Compromise Agreement is attached hereto and incorporated by reference. 3. After reviewing the terms of the Compromise Agreement and evaluating the facts before me, I find that the public interest would be served by adopting the Compromise Agreement,

76

Shell Morocco | Open Energy Information  

Open Energy Info (EERE)

Morocco Morocco Jump to: navigation, search Logo: Shell Morocco Name Shell Morocco Address Immeuble Le Zenith II Place Casablanca, Morocco Zip 20190 Product Production and Distribution of Lubricants for motorists and industries; Storage and Distribution of Oils and LPG; Marine and Aviation; Off-Shore Exploration Year founded 1922 Phone number +212 (0) 522 972727 Website http://www.shell.com/home/cont Coordinates 38.959732°, -77.3419799° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":38.959732,"lon":-77.3419799,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

77

Shell boosts recovery at Kernridge  

Science Conference Proceedings (OSTI)

Since acquiring the Kernridge property in December 1979, Shell Oil Co. has drilled more than 1,800 wells and steadily increased production from 42,000 to 89,000 b/d of oil. Currently, the Kernridge Production Division of Shell California Production Inc. (SCPI), a newly formed subsidiary of Shell Oil Co., is operator for the property. The property covers approximately 35,000 mostly contiguous net acres, with production concentrated mainly on about 5,500 net acres. SCPI's four major fields in the area are the North and South Belridge, Lost Hills, and Antelope Hills. Most of the production comes from the North and South Belridge fields, which were previously held by the Belridge Oil Co. Productive horizons in the fields are the Tulare, Diatomite, Brown Shale, Antelope Shale, 64 Zone, and Agua sand. The Tulare and Diatomite are the two major reservoirs SCPI is developing. The Tulare, encountered between 400 and 1,300 ft, is made up of fine- to coarse-grained, unconsolidated sands with interbedded shales and silt stones and contains 13 /sup 0/ API oil. Using steam drive as the main recovery method, SCPI estimates an ultimate recovery from the Tulare formation of about 60% of the original 1 billion barrels in place. The Diatomite horizon, found between 800 and 3,500 ft and containing light, 28 /sup 0/ API oil, has high porosity (more than 60%), low permeability (less than 1 md), and natural fractures. Because of the Diatomite's low permeability, fracture stimulation is being used to increase well productivity. SCPI anticipates that approximately 5% of the almost 2 billion barrels of oil originally in place will be recovered by primary production.

Moore, S.

1984-01-01T23:59:59.000Z

78

Enduring Stockpile CMM Shell Inspection Plan (U)  

SciTech Connect

The slides are intended to serve as a high level summary of the CMM Shell Inspection Plan as presented to Pu Sustainment Legacy Pit Production IPT.

Montano, Joshua D. [Los Alamos National Laboratory; Flores, Randy A. [Los Alamos National Laboratory

2012-06-13T23:59:59.000Z

79

Core/Shell Nanophosphors for LED Lighting  

Science Conference Proceedings (OSTI)

Symposium, Symposium H: Advanced Ceramics. Presentation Title, Core/Shell Nanophosphors for LED Lighting. Author(s), Jinkyu Han, Gustavo Hirata, Jan B ...

80

Working and Net Available Shell Storage Capacity  

U.S. Energy Information Administration (EIA)

Containing storage capacity data for crude oil, petroleum products, and selected biofuels. The report includes tables detailing working and net available shell ...

Note: This page contains sample records for the topic "royal dutch shell" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Material with core-shell structure  

DOE Patents (OSTI)

Disclosed is a material having a composite particle, the composite particle including an outer shell and a core. The core is made from a lithium alloying material and the outer shell has an inner volume that is greater in size than the core of the lithium alloying material. In some instances, the outer mean diameter of the outer shell is less than 500 nanometers and the core occupies between 5 and 99% of the inner volume. In addition, the outer shell can have an average wall thickness of less than 100 nanometers.

Luhrs, Claudia (Rio Rancho, NM); Richard, Monique N. (Ann Arbor, MI); Dehne, Aaron (Maumee, OH); Phillips, Jonathan (Rio Rancho, NM); Stamm, Kimber L. (Ann Arbor, MI); Fanson, Paul T. (Brighton, MI)

2011-11-15T23:59:59.000Z

82

A SHELL MODEL TURBULENT DYNAMO  

Science Conference Proceedings (OSTI)

Turbulent dynamo phenomena, observed almost everywhere in astrophysical objects and also in the laboratory in the recent VKS2 experiment, are investigated using a shell model technique to describe magnetohydrodynamic turbulence. Detailed numerical simulations at very high Rossby numbers ({alpha}{sup 2} dynamo) show that as the magnetic Reynolds number increases, the dynamo action starts working and different regimes are observed. The model, which displays different large-scale coherent behaviors corresponding to different regimes, is able to reproduce the magnetic field reversals observed both in a geomagnetic dynamo and in the VKS2 experiment. While rough quantitative estimates of typical times associated with the reversal phenomenon are consistent with paleomagnetic data, the analysis of the transition from oscillating intermittent through reversal and finally to stationary behavior shows that the nature of the reversals we observe is typical of {alpha}{sup 2} dynamos and completely different from VKS2 reversals. Finally, the model shows that coherent behaviors can also be naturally generated inside the many-mode dynamical chaotic model, which reproduces the complexity of fluid turbulence, as described by the shell technique.

Perrone, D.; Nigro, G.; Veltri, P. [Universita della Calabria, Dipartimento di Fisica and Centro Nazionale Interuniversitario Struttura della Materia, Unita di Cosenza, I-87030 Arcavacata di Rende (Italy)

2011-07-10T23:59:59.000Z

83

Apparatus and methods for installing, removing and adjusting an inner turbine shell section relative to an outer turbine shell section  

DOE Patents (OSTI)

A turbine includes upper and lower inner shell sections mounting the nozzles and shrouds and which inner shell is supported by pins secured to a surrounding outer shell. To disassemble the turbine for access to the inner shell sections and rotor, an alignment fixture is secured to the lower outer shell section and has pins engaging the inner shell section. To disassemble the turbine, the inner shell weight is transferred to the lower outer shell section via the alignment fixture and cradle pins. Roller assemblies are inserted through access openings vacated by support pins to permit rotation of the lower inner shell section out of and into the lower outer shell section during disassembly and assembly. The alignment fixture includes adjusting rods for adjusting the inner shell axially, vertically, laterally and about a lateral axis. A roller over-cage is provided to rotate the inner shell and a dummy shell to facilitate assembly and disassembly in the field.

Leach, David (Niskayuna, NY); Bergendahl, Peter Allen (Scotia, NY); Waldo, Stuart Forrest (Salem, NC); Smith, Robert Leroy (Milford, OH); Phelps, Robert Kim (Milford, OH)

2001-01-01T23:59:59.000Z

84

OSTI raises $2,400 for Norwood, Dutch Valley, Andersonville, Briceville,  

Office of Scientific and Technical Information (OSTI)

FOR IMMEDIATE RELEASE February 1, 2006 OSTI raises $2,400 for Norwood, Dutch Valley, Andersonville, Briceville, and Fairview Elementary Schools Oak Ridge, TN - The U.S. Department of Energy (DOE) Office of Scientific and Technical Information (OSTI) raised $2,400 during its recent annual Adopt-A-School auction featuring auctioneer Bear Stevenson. The auction was held at Kern Methodist Church in Oak Ridge and benefits Norwood, Andersonville, Briceville, Dutch Valley, and Fairview Elementary Schools. Supplies were delivered to the schools January 27, and included construction paper, markers, pencils, pens, staplers, paper clips, magic tape, video tape, post-it-notes, tissues, file folders, copy paper, and more. OSTI has been Adopt-a-School partner of Norwood Elementary School for

85

OSTI raises $2,400 for Norwood, Dutch Valley, Andersonville, Briceville,  

Office of Scientific and Technical Information (OSTI)

FOR IMMEDIATE RELEASE FOR IMMEDIATE RELEASE February 1, 2006 OSTI raises $2,400 for Norwood, Dutch Valley, Andersonville, Briceville, and Fairview Elementary Schools Oak Ridge, TN - The U.S. Department of Energy (DOE) Office of Scientific and Technical Information (OSTI) raised $2,400 during its recent annual Adopt-A-School auction featuring auctioneer Bear Stevenson. The auction was held at Kern Methodist Church in Oak Ridge and benefits Norwood, Andersonville, Briceville, Dutch Valley, and Fairview Elementary Schools. Supplies were delivered to the schools January 27, and included construction paper, markers, pencils, pens, staplers, paper clips, magic tape, video tape, post-it-notes, tissues, file folders, copy paper, and more. OSTI has been Adopt-a-School partner of Norwood Elementary School for

86

Refined computational models for laminated shells  

Science Conference Proceedings (OSTI)

This paper presents refined computational models for non homogeneous, deep, doubly curved shells. The theory is based on a kinematical approach in which the continuity conditions for displacements and shear stresses at layer interfaces and on the bounding ... Keywords: bending-torsion warping coupling, multilayered shells, piezoelectric laminates, shear-membrane refinements, stress computations, triangular C1-C1/2 finite element

M. Touratier

2002-01-01T23:59:59.000Z

87

Thick-shell nanocrystal quantum dots  

DOE Patents (OSTI)

Colloidal nanocrystal quantum dots comprising an inner core having an average diameter of at least 1.5 nm and an outer shell, where said outer shell comprises multiple monolayers, wherein at least 30% of the quantum dots have an on-time fraction of 0.80 or greater under continuous excitation conditions for a period of time of at least 10 minutes.

Hollingsworth, Jennifer A. (Los Alamos, NM); Chen, Yongfen (Eugene, OR); Klimov, Victor I. (Los Alamos, NM); Htoon, Han (Los Alamos, NM); Vela, Javier (Los Alamos, NM)

2011-05-03T23:59:59.000Z

88

Argonne CNM Highlight: Complexity in Core-Shell Nanomagnets  

NLE Websites -- All DOE Office Websites (Extended Search)

Complexity in Core-Shell Nanomagnets Magnetgic hysteresis of core-shell nanoparticles (curves) Magnetic hysteresis of core-shell Fe@Fe3O4 nanoparticles at 5 K under field cooling...

89

Scattering Functions of Yolk-Shell Particles  

SciTech Connect

The single-particle small-angle scattering properties of the yolk-shell particle, a new type of core-shell particle with a mobile core within the hosting shell, are systematically investigated. The Debye spatial autocorrelation function, pair distance distribution function and intraparticle structure factor (form factor) are calculated and compared to the corresponding scattering functions of reference systems of hard sphere and concentric core-shell particles with identical sizes. Based on our theoretical calculations, we find that the broken centrosymmetry, originating from the mobility of the trapped yolk, results in an imaginary scattering amplitude. As a result, it contributes an additional destructive interference term which smears certain features present in the scattering functions of the reference systems. Based on our theoretical models, we present the prospect of jointly using small angle neutron and x-ray scattering techniques to quantitatively determine the structural characteristics of yolk-shell particles.

Li, Xin [ORNL] [ORNL; Liu, Kao-Hsiang [National Taiwan University] [National Taiwan University; Wu, Bin [ORNL] [ORNL; Sanchez-Diaz, Luis E [ORNL] [ORNL; Smith, Gregory Scott [ORNL] [ORNL; Chen, Wei-Ren [ORNL] [ORNL

2013-01-01T23:59:59.000Z

90

Potential benefits of solar reflective car shells: Cooler cabins...  

NLE Websites -- All DOE Office Websites (Extended Search)

of solar reflective car shells: Cooler cabins, fuel savings and emission reductions Title Potential benefits of solar reflective car shells: Cooler cabins, fuel savings and...

91

THE PYTHON SHELL FOR THE ORBIT CODE  

Science Conference Proceedings (OSTI)

A development of a Python driver shell for the ORBIT simulation code is presented. The original ORBIT code uses the SuperCode shell to organize accelerator-related simulations. It is outdated, unsupported, and it is an obstacle to future code development. The necessity and consequences of replacing the old shell language are discussed. A set of core modules and extensions that are currently in PyORBIT are presented. They include particle containers, parsers for MAD and SAD lattice files, a Python wrapper for MPI libraries, space charge calculators, TEAPOT trackers, and a laser stripping extension module.

Shishlo, Andrei P [ORNL; Gorlov, Timofey V [ORNL; Holmes, Jeffrey A [ORNL

2009-01-01T23:59:59.000Z

92

Working and Net Available Shell Storage Capacity  

U.S. Energy Information Administration (EIA) Indexed Site

Working and Net Available Shell Storage Capacity Working and Net Available Shell Storage Capacity With Data for September 2013 | Release Date: November 27, 2013 | Next Release Date: May 29, 2013 Previous Issues Year: September 2013 March 2013 September 2012 March 2012 September 2011 March 2011 September 2010 Go Containing storage capacity data for crude oil, petroleum products, and selected biofuels. The report includes tables detailing working and net available shell storage capacity by type of facility, product, and Petroleum Administration for Defense District (PAD District). Net available shell storage capacity is broken down further to show the percent for exclusive use by facility operators and the percent leased to others. Crude oil storage capacity data are also provided for Cushing, Oklahoma, an

93

Hanford Single-Shell Tank Integrity Program  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Operations Contract Hanford Single Hanford Single- -Shell Shell Hanford Single Hanford Single Shell Shell Tank Integrity Tank Integrity Program Program Herbert S Berman Herbert S Berman Herbert S. Berman Herbert S. Berman July 29, 2009 July 29, 2009 1 Page 1 Tank Operations Contract Introduction * The Hanford site's principle historic mission was plutonium production for the manufacture of nuclear weapons. * Between 1944 and 1988, the site operated nine graphite- moderated light-water production reactors to irradiate moderated, light-water, production reactors to irradiate fuel and produce plutonium. * Four large chemical separations plants were run to extract plutonium from the fuel, and a variety of laboratories, support facilities, and related infrastructure to support production

94

Subsiding Shells around Shallow Cumulus Clouds  

Science Conference Proceedings (OSTI)

In this study large-eddy simulations (LES) are used to gain more knowledge on the shell of subsiding air that is frequently observed around cumulus clouds. First, a detailed comparison between observational and numerical results is presented to ...

Thijs Heus; Harm J. J. Jonker

2008-03-01T23:59:59.000Z

95

How are electrons placed in shells...  

NLE Websites -- All DOE Office Websites (Extended Search)

a look at our Periodic Table of Elements. Let's use oxygen as an example. Oxygen's electron configuration is: 1s2 2s2 2p4 This means that the first energy level (the K-shell)...

96

Nuclear Quadrupole Moments and Nuclear Shell Structure  

DOE R&D Accomplishments (OSTI)

Describes a simple model, based on nuclear shell considerations, which leads to the proper behavior of known nuclear quadrupole moments, although predictions of the magnitudes of some quadrupole moments are seriously in error.

Townes, C. H.; Foley, H. M.; Low, W.

1950-06-23T23:59:59.000Z

97

Experimental study of upper sd shell nuclei and evolution of sd-fp shell gap  

Science Conference Proceedings (OSTI)

The intruder orbitals from the fp shell play important role in the structure of nuclei around the line of stability in the upper sd shell. Experimentally we have studied {sup 35}Cl, {sup 30}P, {sup 36}Cl, {sup 37}Ar and {sup 34}Cl in this mass region using the INGA setup. Large basis cross-shell shell model calculations have indicated the need for change of the sd-fp energy gap for reliable reproduction of negative parity and high spin positive parity states. Indication of population of states of large deformation has been found in our data. Theoretical interpretation of these states has been discussed.

Sarkar, M. Saha [Saha Institute of Nuclear Physics, Kolkata - 700064 (India)

2012-06-27T23:59:59.000Z

98

Core-Shell Structured Magnetic Ternary Nanocubes  

DOE Green Energy (OSTI)

While transition metal-doped ferrite nanoparticles constitute an important class of soft magnetic nanomaterials with spinel structures, the ability to control the shape and composition would enable a wide range of applications in homogeneous or heterogeneous reactions such as catalysis and magnetic separation of biomolecules. This report describes novel findings of an investigation of core-shell structured MnZn ferrite nanocubes synthesized in organic solvents by manipulating the reaction temperature and capping agent composition in the absence of the conventionally-used reducing agents. The core-shell structure of the highly-monodispersed nanocubes (~20 nm) are shown to consist of an Fe3O4 core and an (Mn0.5Zn0.5)(Fe0.9, Mn1.1)O4 shell. In comparison with Fe3O4 and other binary ferrite nanoparticles, the core-shell structured nanocubes were shown to display magnetic properties regulated by a combination of the core-shell composition, leading to a higher coercivity (~350 Oe) and field-cool/zero-field-cool characteristics drastically different from many regular MnZn ferrite nanoparticles. The findings are discussed in terms of the unique core-shell composition, the understanding of which has important implication to the exploration of this class of soft magnetic nanomaterials in many potential applications such as magnetic resonance imaging, fuel cells, and batteries.

Wang, Lingyan; Wang, Xin; Luo, Jin; Wanjala, Bridgid N.; Wang, Chong M.; Chernova, Natalya; Engelhard, Mark H.; Liu, Yao; Bae, In-Tae; Zhong, Chuan-Jian

2010-12-01T23:59:59.000Z

99

Regionalism in international air transportation--cooperation and competition : papers from an international conference organized by the Massachusetts Institute of Technology, held at the Amman Chamber of Commerce, Amman, Jordan, April 19-21, 1983, under the auspices of Alia, the Royal Jordanian Airline.  

E-Print Network (OSTI)

Preface: Alia: The Royal Jordanian Airline is very pleased to present this collectiont of papers originally presented at the international conference entitled, "Regionalism in International Air Transportation: Cooperation ...

Massachusetts Institute of Technology.; \\02BBAlyah.; Massachusetts Institute of Technology. Flight Transportation Laboratory

100

Cluster aspects of p-shell and sd-shell nuclei  

SciTech Connect

We report some topics on cluster structures studied by using a theoretical method of antisymmetrized molecular dynamics(AMD). Cluster features of p-shell and sd-shell nuclei are discussed. In particular, three alpha cluster structures in the excited states of {sup 12}C and {sup 14}C are focused. Dineutron correlations in neutron-rich nuclei are also discussed.

Kanada-En'yo, Y.; Kobayashi, F.; Suhara, T. [Department of Physics, Kyoto University, Kyoto 606-8502 (Japan); Kimura, M. [Creative Research Initiative ''Sousei'', Hokkaido University, Sapporo, Hokkaido 001-0021 (Japan); Taniguchi, Y. [RIKEN Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama 351-0198 (Japan)

2011-05-06T23:59:59.000Z

Note: This page contains sample records for the topic "royal dutch shell" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Removable inner turbine shell with bucket tip clearance control  

DOE Patents (OSTI)

A turbine includes a plurality of inner shell sections mounting first and second stage nozzle and shroud portions. The inner shell sections are pinned to an outer containment shell formed of sections to preclude circumferential movement of the inner shell relative to the outer shell and enable thermal expansion and contraction of the inner shell relative to the outer shell. Positive bucket tip clearance control is afforded by passing a thermal medium about the inner shell in heat transfer relation with the shrouds about the first and second stage bucket tips, the thermal medium being provided from a source of heating/cooling fluid independent of the turbine. Access is provided to the rotor and turbine buckets by removing the outer and inner shell sections.

Sexton, Brendan F. (Clifton Park, NY); Knuijt, Hans M. (Niskayuna, NY); Eldrid, Sacheverel Q. (Saratoga Springs, NY); Myers, Albert (Amsterdam, NY); Coneybeer, Kyle E. (Schenectady, NY); Johnson, David Martin (Ballston Lake, NY); Kellock, Iain R. (Clifton Park, NY)

2000-01-01T23:59:59.000Z

102

Working and Net Available Shell Storage Capacity  

U.S. Energy Information Administration (EIA) Indexed Site

Working and Net Available Shell Working and Net Available Shell Storage Capacity November 2013 With Data as of September 30, 2013 Independent Statistics & Analysis www.eia.gov U.S. Department of Energy Washington, DC 20585 U.S. Energy Information Administration | Working and Net Available Shell Storage Capacity as of September 30, 2013 This report was prepared by the U.S. Energy Information Administration (EIA), the statistical and analytical agency within the U.S. Department of Energy. By law, EIA's data, analyses, and forecasts are independent of approval by any other officer or employee of the United States Government. The views in this report therefore should not be construed as representing those of the Department of Energy or

103

Inner shell radial pin geometry and mounting arrangement  

DOE Patents (OSTI)

Circumferentially spaced arrays of support pins are disposed through access openings in an outer turbine shell and have projections received in recesses in forward and aft sections of an inner turbine shell supported from the outer shell. The projections have arcuate sides in a circumferential direction affording line contacts with the side walls of the recesses and are spaced from end faces of the recesses, enabling radial and axial expansion and contraction of the inner shell relative to the outer shell. All loads are taken up in a tangential direction by the outer shell with the support pins taking no radial loadings.

Leach, David (Niskayuna, NY); Bergendahl, Peter Allen (Scotia, NY)

2002-01-01T23:59:59.000Z

104

A charged rotating cylindrical shell 1  

E-Print Network (OSTI)

We give an example of a spacetime having an infinite thin rotating cylindrical shell constituted by a charged perfect fluid as a source. As the interior of the shell the Bonnor–Melvin universe is considered, while its exterior is represented by Datta– Raychaudhuri spacetime. We discuss the energy conditions and we show that our spacetime contains closed timelike curves. Trajectories of charged test particles both inside and outside the cylinder are also examined. Expression for the angular velocity of a circular motion inside the cylinder is given.

P. Klepá?; J. Horsk´y

2003-01-01T23:59:59.000Z

105

Optical Properties of Gold Pyramidal Shells  

Science Conference Proceedings (OSTI)

We present an investigation of the optical properties of gold pyramidal shell nanoparticles. Theory shows a multiresonance spectrum at near-infrared wavelengths that is consistent with the measured extinction spectra of particles that are fabricated using a soft-lithography technique. In addition to electric dipole and electric quadrupole resonances, the calculations identify an unusual plasmon mode, which involves oscillation of the polarization perpendicular to the direction of both the incident polarization and wave vector. We show that this TE-like resonance can be suppressed by truncating the tip of the pyramid or by increasing the shell thickness without adversely affecting the in-plane dipole and quadrupole resonances.

Shuford, Kevin L [ORNL; Lee, Jeunghoon [Northwestern University, Evanston; Odom, Teri [Northwestern University, Evanston; Schatz, George C. [Northwestern University, Evanston

2008-01-01T23:59:59.000Z

106

Micro- and Nano-Crystal Orientations in Shells  

NLE Websites -- All DOE Office Websites (Extended Search)

Micro- and Nano-Crystal Orientations in Shells Micro- and Nano-Crystal Orientations in Shells Print Thursday, 12 April 2012 11:11 A research group from the University of Wisconsin...

107

Incorporation of silica into baroplastic core-shell nanoparticles  

E-Print Network (OSTI)

Core-shell baroplastics are nanophase materials that exhibit pressure-induced flow at low temperatures and high pressures. Core-shell baroplastics used in this work are comprised of a low Tg poly(butyl acrylate) (PBA) core ...

Hewlett, Sheldon A

2006-01-01T23:59:59.000Z

108

Shape fluctuations of a spherical surfactant shell in a ...  

Science Conference Proceedings (OSTI)

Page 1. 1 Shape fluctuations of a spherical surfactant shell in a microemulsion ... Micelles are closed shape structures where the ...

2013-04-02T23:59:59.000Z

109

Inorganic Shells for CZTS Nanocrystals With Enhanced Charge ...  

packing order, proximity, and surface chemistry to optimize the nanocrystals’ electrical properties. Specifically, the shells allow charge-carrying ...

110

System Specification for the Double Shell Tank (DST) System  

Science Conference Proceedings (OSTI)

This document establishes the functional, performance, design, development, interface and test requirements for the Double-Shell Tank System.

GRENARD, C.E.

2000-04-21T23:59:59.000Z

111

Fabrication of Highly Luminescent Graded Core/Shell ...  

Paul Alivisatos, Erik Scher, and Liberato Manna have grown graded shells on CdSe core nanorods. Traditional techniques have ...

112

Tank characterization for Double-Shell Tank 241-AP-102  

SciTech Connect

This document provides the characterization information and interprets the data for Double-Shell Tank AP-102.

DeLorenzo, D.S.; DiCenso, A.T.; Amato, L.C.; Weyns-Rollosson, M.I.; Smith, D.J. [Los Alamos Technical Associates, Inc., Kennewick, WA (United States); Simpson, B.C.; Welsh, T.L. [Westinghouse Hanford Co., Richland, WA (United States)

1994-08-01T23:59:59.000Z

113

Constraints for system specifications for the double-shell and single-shell tank systems  

SciTech Connect

This is a supporting document for the Level 1 Double-Shell and Single-Shell System Specifications. The rationale for selection of specific regulatory constraining documents cited in the two system specifications is provided. many of the regulations have been implemented by the Project Hanford Management Contract procedures (HNF-PROs) and as such noted and traced back to their origins in State and Federal regulations.

SHAW, C.P.

1999-05-18T23:59:59.000Z

114

Pseudo-Symmetry and Majorana Operators in pf-Shell  

SciTech Connect

The Majorana operator of the pseudo ds-shell preserves the SU-tilde(4) symmetry, and in a unified manner it reproduces reasonably well the ground state energies of the nine nuclei in this shell. The study of {beta} decay in the same shell provides further support for the SU-tilde(4) symmetry.

Valencia, J. P.; Wu, H. C. [Instituto de Fisica, Universidad de Antioquia, Medellin (Colombia)

2007-10-26T23:59:59.000Z

115

Reconstructing Past Solar Activity using Meridian Solar Observations: the Case of the Royal Observatory of the Spanish Navy (1833-1840)  

E-Print Network (OSTI)

Solar meridian observations have been used to evaluate the solar activity of the past. Some important examples are the solar meridian observations made at the Basilica of San Petronio in Bologna by several astronomers and the observations made by Hevelius published in his book Machina Coelestis. However, we do not know whether these observations, which were not aimed to estimate the solar activity, are reliable for evaluating solar activity. In this paper, we present the marginal notes about sunspots that are included in the manuscripts of the meridian solar observations made at the Royal Observatory of the Spanish Navy during the period 1833-1840. We compare these observations with other solar activity indices such as sunspot area and number. Our conclusion is that solar meridian observations should be used with extreme caution to evaluate past solar activity.

Vaquero, J M

2014-01-01T23:59:59.000Z

116

Method of fabricating nested shells and resulting product  

DOE Patents (OSTI)

A multiple shell structure and a method of manufacturing such structure wherein a hollow glass microsphere is surface treated in an organosilane solution so as to render the shell outer surface hydrophobic. The surface treated glass shell is then suspended in the oil phase of an oil-aqueous phase dispersion. The oil phase includes an organic film-forming monomer, a polymerization initiator and a blowing agent. A polymeric film forms at each phase boundary of the dispersion and is then expanded in a blowing operation so as to form an outer homogeneously integral monocellular substantially spherical thermoplastic shell encapsulating an inner glass shell of lesser diameter.

Henderson, Timothy M. (Ann Arbor, MI); Kool, Lawrence B. (Ann Arbor, MI)

1982-01-01T23:59:59.000Z

117

Production of Hydrogen from Peanut Shells  

NLE Websites -- All DOE Office Websites (Extended Search)

Production of Hydrogen from Peanut Shells Production of Hydrogen from Peanut Shells The goal of this project is the production of renewable hydrogen from agricultural residues, in the near-term time frame (~three years) and at a comparable cost to existing methane reforming technologies. The hydrogen produced will be blended with CNG and used to power a bus in Albany, GA. Our strategy is to produce hydrogen from biomass pyrolysis oils in conjunction with high value co-products. Activated carbon can be made from agricultural residues in a two- stage process: (1) slow pyrolysis of biomass to produce charcoal, and (2) high temperature processing to form activated carbon. The vapor by-products from the first step can be steam reformed into hydrogen. NREL has developed the technology for bio-

118

Flare Gas Recovery in Shell Canada Refineries  

E-Print Network (OSTI)

Two of Shell Canada's refineries have logged about six years total operating experience with modern flare gas recovery facilities. The flare gas recovery systems were designed to recover the normal continuous flare gas flow for use in the refinery fuel gas system. The system consists of liquid knock-out, compression, and liquid seal facilities. Now that the debugging-stage challenges have been dealt with, Shell Canada is more than satisfied with the system performance. A well-thought-out installation can today be safe, trouble-free, and attractive from an economic and environmental viewpoint. This paper highlights general guidelines for the sizing, design and operation of a refinery flare gas recovery facility.

Allen, G. D.; Wey, R. E.; Chan, H. H.

1983-01-01T23:59:59.000Z

119

Understanding Nuclei in the upper sd - shell  

E-Print Network (OSTI)

Nuclei in the upper-$sd$ shell usually exhibit characteristics of spherical single particle excitations. In the recent years, employment of sophisticated techniques of gamma spectroscopy has led to observation of high spin states of several nuclei near A$\\simeq$ 40. In a few of them multiparticle, multihole rotational states coexist with states of single particle nature. We have studied a few nuclei in this mass region experimentally, using various campaigns of the Indian National Gamma Array setup. We have compared and combined our empirical observations with the large-scale shell model results to interpret the structure of these nuclei. Indication of population of states of large deformation has been found in our data. This gives us an opportunity to investigate the interplay of single particle and collective degrees of freedom in this mass region.

M. Saha Sarkar; Abhijit Bisoi; Sudatta Ray; Ritesh Kshetri; S. Sarkar

2013-08-01T23:59:59.000Z

120

Compact shell solitons in K field theories  

Science Conference Proceedings (OSTI)

Some models providing shell-shaped static solutions with compact support (compactons) in 3+1 and 4+1 dimensions are introduced, and the corresponding exact solutions are calculated analytically. These solutions turn out to be topological solitons and may be classified as maps S{sup 3}{yields}S{sup 3} and suspended Hopf maps, respectively. The Lagrangian of these models is given by a scalar field with a nonstandard kinetic term (K field) coupled to a pure Skyrme term restricted to S{sup 2}, rised to the appropriate power to avoid the Derrick scaling argument. Further, the existence of infinitely many exact shell solitons is explained using the generalized integrability approach. Finally, similar models allowing for nontopological compactons of the ball type in 3+1 dimensions are briefly discussed.

Adam, C.; Klimas, P.; Sanchez-Guillen, J. [Departamento de Fisica de Particulas, Universidad de Santiago and Instituto Galego de Fisica de Altas Enerxias (IGFAE), E-15782 Santiago de Compostela (Spain); Wereszczynski, A. [Niels Bohr Institute, Copenhagen University, Blegdamsvej 17, DK-2100 Copenhagen O, Denmark and Institute of Physics, Jagiellonian University, Reymonta 4, Krakow, 30-059 (Poland)

2009-10-15T23:59:59.000Z

Note: This page contains sample records for the topic "royal dutch shell" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Working and Net Available Shell Storage Capacity  

U.S. Energy Information Administration (EIA) Indexed Site

Net Available Shell Storage Capacity by PAD District as of September 30, 2013 Net Available Shell Storage Capacity by PAD District as of September 30, 2013 (Thousand Barrels) Commodity In Operation Idle 1 In Operation Idle 1 In Operation Idle 1 In Operation Idle 1 In Operation Idle 1 In Operation Idle 1 Refineries Crude Oil 17,334 831 21,870 1,721 86,629 3,468 4,655 174 39,839 1,230 170,327 7,424 Fuel Ethanol 174 - 175 1 289 - 134 - 92 - 864 1 Natural Gas Plant Liquids and Liquefied Refinery Gases 2 1,267 23 11,599 382 28,865 78 641 19 2,412 23 44,784 525 Propane/Propylene (dedicated)

122

New lambda Bootis stars with a shell  

E-Print Network (OSTI)

We publish here the second part of our spectroscopic survey at high dispersion of some known and suspected lambda Bootis stars with a view to detecting circumstellar shell features. Eight stars of our sample exhibit such features. These stars are fast rotators, a result which is in line with Holweger and Rentzsch-Holm's study (1995). The analysis of the photometric data has allowed us to confirm the exclusion of a few stars misclassified from the lambda Bootis group.

B. Hauck; D. Ballereau; J. Chauville

1997-09-02T23:59:59.000Z

123

Sustainable School Buildings: Some of the Latest Dutch Examples of Nearly zero Emissions Buildings  

E-Print Network (OSTI)

In the Netherlands with respect to sustainable educational building there is a continuous development going on from sustainable building, to Passive House schools, to nearly Zero Emission Buildings to even Energy positive buildings. The Dutch government started a special funding program to stimulate the innovation of high performance schools. Some of these schools were built as extreme sustainability friendly schools while also much attention was given to comfort and health aspects. Three of these new schools were investigated: two passive house schools and the first net ZEB designed school are analyzed, measured and their results were compared with 13 other recent but more traditional designed schools, as well as with schools from earlier research. The results showed that concerning Indoor Air Quality and thermal comfort the new environmental schools did not perform very well. This is a disappointing result which indicates that is necessary to pay enough attention to the basic functionalities of a school (health and comfortable indoor environment) instead of focusing too much on sustainability.

Zeiler, W.; Boxem, G.; Waard, M.

2012-01-01T23:59:59.000Z

124

Hamiltonian spacetime dynamics with a spherical null-dust shell  

E-Print Network (OSTI)

We consider the Hamiltonian dynamics of spherically symmetric Einstein gravity with a thin null-dust shell, under boundary conditions that fix the evolution of the spatial hypersurfaces at the two asymptotically flat infinities of a Kruskal-like manifold. The constraints are eliminated via a Kuchar-type canonical transformation and Hamiltonian reduction. The reduced phase space $\\tilde\\Gamma$ consists of two disconnected copies of $R^4$, each associated with one direction of the shell motion. The right-moving and left-moving test shell limits can be attached to the respective components of right-hand-side and left-hand-side masses as configuration variables provides a global canonical chart on each component of $\\tilde\\Gamma$, and renders the Hamiltonian simple, but encodes the shell dynamics in the momenta in a convoluted way. Choosing the shell curvature radius and the "interior" mass as configuration variables renders the shell dynamics transparent in an arbitrarily specifiable stationary gauge "exterior" ...

Louko, J; Friedman, J L; Louko, Jorma; Whiting, Bernard F.; Friedman, John L.

1998-01-01T23:59:59.000Z

125

Method and Apparatus for Pasteurizing Shell Eggs Using Radio Frequency  

NLE Websites -- All DOE Office Websites (Extended Search)

Method and Apparatus for Pasteurizing Shell Eggs Using Radio Frequency Method and Apparatus for Pasteurizing Shell Eggs Using Radio Frequency Heating" Inventors..--.. Christopher D. Brunkhorst, David J. Geveke, Andrew B. W. Bigley. This disclosure is directed to a system for pasteurizing shell eggs. The system includes an egg rotating assembly structured to rotate the egg, and electrodes that are in contact with the egg. The system is structured so that, as the rotating assembly rotates the egg, radio frequency energy is directed to the egg to pasteurize it. Nearly 200 million "shell eggs" are consumed in the United States (US) each day. "Shell eggs" are non-powdered conventional eggs that are naturally produced by hens. Shell eggs are among the most nutritious foods on earth and can be part of a healthy diet. However, some unbroken, clean, fresh

126

Graded core/shell semiconductor nanorods and nanorod barcodes  

DOE Patents (OSTI)

Graded core/shell semiconductor nanorods and shaped nanorods are disclosed comprising Group II-VI, Group III-V and Group IV semiconductors and methods of making the same. Also disclosed are nanorod barcodes using core/shell nanorods where the core is a semiconductor or metal material, and with or without a shell. Methods of labeling analytes using the nanorod barcodes are also disclosed.

Alivisatos, A. Paul (Oakland, CA); Scher, Erik C. (San Francisco, CA); Manna, Liberato (Lecce, IT)

2010-12-14T23:59:59.000Z

127

Graded core/shell semiconductor nanorods and nanorod barcodes  

DOE Patents (OSTI)

Graded core/shell semiconductor nanorods and shapped nanorods are disclosed comprising Group II-VI, Group III-V and Group IV semiconductors and methods of making the same. Also disclosed are nanorod barcodes using core/shell nanorods where the core is a semiconductor or metal material, and with or without a shell. Methods of labeling analytes using the nanorod barcodes are also disclosed.

Alivisatos, A. Paul; Scher, Erik C.; Manna, Liberato

2013-03-26T23:59:59.000Z

128

Working and Net Available Shell Storage Capacity as of March...  

Gasoline and Diesel Fuel Update (EIA)

includes tables detailing working and net available shell storage capacity by type of facility, product, and Petroleum Administration for Defense District (PAD District). Net...

129

Working and Net Available Shell Storage Capacity as of ...  

U.S. Energy Information Administration (EIA)

It includes three tables detailing working and net available shell storage capacity by facility type, product, and PAD District as of September 30, 2010.

130

Optimization the Preparation of Activated Carbon Form Walnut Shell ...  

Science Conference Proceedings (OSTI)

The study supported the potentiality of comprehensive utilization of walnut shell and the ... An Experimental Investigation of a Flue Gas Recirculation System for ...

131

Nondestructive Evaluation: Structural Health Monitoring for Heat Exchanger Shells  

Science Conference Proceedings (OSTI)

The heat exchanger shell is a pressure vessel that surrounds and encloses a tube bundle. The shell is susceptible to corrosion and wear, which originates from the inside of the vessel and is caused by steam impingement and flow conditions. The shells are nominally 30 to 50 ft (9.1 to 15.2 m) in length and 30 to 60 in. (76.2 to 152.4 cm) in diameter; the wall thickness is approximately 0.75 in. (1.91 cm). Ultrasonic thickness readings are currently performed on distinct regions on the shell wall to suppor...

2008-03-14T23:59:59.000Z

132

Absence of Embedded Mass Shells: Cerenkov Radiation and Quantum Friction  

E-Print Network (OSTI)

We show that, in a model where a non-relativistic particle is coupled to a quantized relativistic scalar Bose field, the embedded mass shell of the particle dissolves in the continuum when the interaction is turned on, provided the coupling constant is sufficiently small. More precisely, under the assumption that the fiber eigenvectors corresponding to the putative mass shell are differentiable as functions of the total momentum of the system, we show that a mass shell could exist only at a strictly positive distance from the unperturbed embedded mass shell near the boundary of the energy-momentum spectrum.

W. De Roeck; J. Froehlich; A. Pizzo

2010-01-05T23:59:59.000Z

133

Core-Shell Type Nanowires for Electrodes of Flexible ...  

Science Conference Proceedings (OSTI)

Abstract Scope, Highly conductive oxide core-thin anode material shell nanowire ... yet flexible electrode with large surface area and high electric conductivity, ...

134

STATEMENT OF CONSIDERATIONS REQUEST BY SHELL SOLAR SYSTEMS, LP...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

As set out ins the attached waiver petition and in subsequent discussions with DOE Patent Counsel, Shell Solar Systems, LP (SSI) has requested an advance waiver of domestic...

135

Gulf Coast (PADD 3) Shell Storage Capacity at Operable Refineries  

U.S. Energy Information Administration (EIA)

Propane/Propylene: 4,376: 3,520: 3,565-----1982-2013: ... Notes: Shell storage capacity is the design capacity of the tank. See Definitions, Sources, ...

136

Working and Net Available Shell Storage Capacity as of ...  

U.S. Energy Information Administration (EIA)

Revision to Working and Net Available Shell Storage Capacity as of September 30, 2010 . Crude oil storage capacity data at tank farms reported for PAD District 2 and ...

137

Shell Solar GmbH formerly Siemens und Shell Solar GmbH | Open Energy  

Open Energy Info (EERE)

GmbH formerly Siemens und Shell Solar GmbH GmbH formerly Siemens und Shell Solar GmbH Jump to: navigation, search Name Shell Solar GmbH (formerly Siemens und Shell Solar GmbH) Place Munich, Bavaria, Germany Zip 80807 Sector Solar Product Manufacturer and distributor of solar energy equipment and products. Coordinates 48.136415°, 11.577531° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":48.136415,"lon":11.577531,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

138

MEE 452: Example 3-2 ShellShell--andand--Tube Heat Exchanger Analysis:Tube Heat Exchanger Analysis  

E-Print Network (OSTI)

minmaxminmax min ,;; ,min)()( C C NTU C UA NTU TC q q q CCCcmCcmC UA CHCpCHpH #12;Tube arrangement in shell

Kostic, Milivoje M.

139

High Rayleigh number thermal convection in volumetrically heated spherical shells  

E-Print Network (OSTI)

parameterizations for the average temperature of the shell and for the temperature jump across the thermal boundary properties, cores and overlying shells (e.g., silicate mantles or ice layers) of rocky planets and icy moons, including the rheology of the material, the presence of phase transitions, and the mode of heating

Tackley, Paul J.

140

Application to Export Electric Energy OE Doc No. EA-339-A Shell...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Energy OE Doc No. EA-339-A Shell Energy North America (US), L.P. Application from Shell Energy to export electric energy to Canada. EA-339-A Shell Energy (CN).pdf More...

Note: This page contains sample records for the topic "royal dutch shell" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

EA-339-A Shell Energy North America (US), L.P. | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

North America (US), L.P. EA-339-A Shell Energy North America (US), L.P. Order authorizing Shell Energy to export electric energy to Canada. EA-339-A Shell Energy (CN).pdf...

142

EA-339 Shell Energy North America (US), L.P. | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

North America (US), L.P. EA-339 Shell Energy North America (US), L.P. Order authorizing Shell Energy North America (US), L.P. to export electric energy to Canada EA-339 Shell...

143

EA-338 Shell Energy North America (US), L.P. | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

North America (US), L.P. EA-338 Shell Energy North America (US), L.P. Order authorizing Shell Energy North America (US), L.P. to export electric energy to Mexico EA-338 Shell...

144

EA-338-A Shell Energy North America (US), L.P. | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Shell Energy North America (US), L.P. Order authorizing Shell Energy to export electric energy to Mexico. EA-338-A Shell Energy (MX).pdf More Documents & Publications Application...

145

SPR Awards Exchange Contract to Shell Trading | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Awards Exchange Contract to Shell Trading Awards Exchange Contract to Shell Trading SPR Awards Exchange Contract to Shell Trading May 10, 2007 - 12:55pm Addthis Deliveries to Begin in August WASHINGTON, DC - The U.S. Department of Energy (DOE) today awarded a contract to Shell Trading for exchange of 8.7 million barrels of royalty oil produced from the Gulf Coast for crude oil meeting the quality specifications of the Strategic Petroleum Reserve (SPR). The exchange oil will be delivered to two SPR sites, West Hackberry, Louisiana and Bryan Mound, Texas. The offer submitted by Shell Trading represented the highest value of specification-grade oil for the Reserve. Deliveries are expected to begin in August 2007 at a modest rate of approximately 50,000 barrels per day for a period of six months. The contract terms apply royalty-in-kind exchange provisions that require

146

A Shell Theory for Chiral Single-Wall Carbon Nanotubes  

E-Print Network (OSTI)

In this paper, we propose a characterization of the mechanical response of the linearly elastic shell we associate to a single-wall carbon nanotube of arbitrary chirality. In Bajaj et al. 2013, we gave such a characterization in the case of zigzag and armchair nanotubes; in particular, we showed that the orthotropic response we postulated for the associated shells is to become isotropic in the graphene-limit, that is, when the shell radius grows bigger and bigger. Here we give an explicit recipe to construct the generally anisotropic response of the shell associated to a nanotube of any chirality in terms of the response of the shell associated to a related zigzag or armchair nanotube. The expected coupling of mechanical effects that anisotropy entrains is demonstrated in the case of a torsion problem, where the axial extension accompanying twist is determined analytically and found in good agreement with the available experimental data.

Antonino Favata; Paolo Podio-Guidugli

2013-06-28T23:59:59.000Z

147

Stabilization of the resistive shell mode in tokamaks  

Science Conference Proceedings (OSTI)

The stability of current-driven external-kink modes is investigated in a tokamak plasma surrounded by an external shell of finite electrical conductivity. According to conventional theory, the ideal mode can be stabilized by placing the shell sufficiently close to the plasma, but the non-rotating ``resistive shell mode,`` which grows on the characteristic L/R time of the shell, always persists. It is demonstrated, using both analytic and numerical techniques, that a combination of strong edge plasma rotation and dissipation somewhere inside the plasma is capable of stabilizing the resistive shell mode. This stabilization mechanism does not necessarily depend on toroidicity or presence of resonant surfaces inside the plasma.

Fitzpatrick, R.; Aydemir, A.

1995-02-01T23:59:59.000Z

148

Hanford double shell tank corrosion monitoring instrument tree prototype  

Science Conference Proceedings (OSTI)

High-level nuclear wastes at the Hanford site are stored underground in carbon steel double-shell and single-shell tanks (DSTs and SSTs). The installation of a prototype corrosion monitoring instrument tree into DST 241-A-101 was completed in December 1995. The instrument tree has the ability to detect and discriminate between uniform corrosion, pitting, and stress corrosion cracking (SCC) through the use of electrochemical noise measurements and a unique stressed element, three-electrode probe. The tree itself is constructed of AISI 304L stainless steel (UNS S30403), with probes in the vapor space, vapor/liquid interface and liquid. Successful development of these trees will allow their application to single shell tanks and the transfer of technology to other US Department of Energy (DOE) sites. Keywords: Hanford, radioactive waste, high-level waste tanks, electrochemical noise, probes, double-shell tanks, single-shell tanks, corrosion.

Nelson, J.L.; Edgemon, G.L.; Ohl, P.C.

1995-11-01T23:59:59.000Z

149

Pemex to acquire interest in Shell Texas refinery  

Science Conference Proceedings (OSTI)

This paper reports that Petroleos Mexicanos and Shell Oil Co. have signed a memorandum of understanding to form a joint refining venture involving Shell's 225,000 b/d Deer Park, Tex., refinery. Under the agreement, Mexico's state owned oil company is to purchase a 50% interest in the refinery, and Shell is to sell Pemex unleaded gasoline on a long term basis. Under the venture, Shell and Pemex plan to add undisclosed conversion and upgrading units tailored to process heavy Mexican crude. The revamp will allow Pemex to place more than 100,000 b/d of Mayan heavy crude on the U.S. market. Mayan accounts for 70% of Mexico's crude oil exports. In turn, Shell will sell Pemex as much as 45,000 b/d of unleaded gasoline to help meet Mexico's rapidly growing demand.

Not Available

1992-08-31T23:59:59.000Z

150

Applicant Organization:  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Iogen Biorefinery Partners, LLC Iogen Biorefinery Partners, LLC Corporate HQ: Arlington, VA Proposed Facility Location: Shelley, Idaho Description: This project from a leading enzyme player will demonstrate a scaled up biochemical process with the flexibility to process a wide range of agricultural residues into cellulose ethanol. CEO or Equivalent: Brian Foody Participants: Iogen Corporation, Goldman Sachs; Royal Dutch Shell Oil Company; Others Production: * 18 million gallons/year in the first plant, 250 million gallons/year in future plants * Cellulose ethanol & co-products in first plant; future plants to be primarily cellulose ethanol Technology & Feedstocks: * Agricultural residues: wheat straw, barley straw, corn stover, switchgrass and rice

151

A New CNT-Oriented Shell Theory  

E-Print Network (OSTI)

A theory of linearly elastic orthotropic shells is presented, with potential application to the continuous modeling of Carbon NanoTubes. Two relevant features are: the selected type of orthotropic response, which should be suitable to capture differences in chirality; the possibility of accounting for thickness changes due to changes in inter-wall separation to be expected in multi-wall CNTs. A simpler version of the theory is also proposed, in which orthotropy is preserved but thickness changes are excluded, intended for possible application to single-wall CNTs. Another feature of both versions of the present theory is boundary-value problems of torsion, axial traction, uniform inner pressure, and rim flexure, can be solved explicitly in closed form. Various directions of ongoing further research are indicated.

Antonino Favata; Paolo Podio-Guidugli

2011-04-05T23:59:59.000Z

152

Energy conditions, traversable wormholes and dust shells  

E-Print Network (OSTI)

Firstly, we review the pointwise and averaged energy conditions, the quantum inequality and the notion of the ``volume integral quantifier'', which provides a measure of the ``total amount'' of energy condition violating matter. Secondly, we present a specific metric of a spherically symmetric traversable wormhole in the presence of a generic cosmological constant, verifying that the null and the averaged null energy conditions are violated, as was to be expected. Thirdly, a pressureless dust shell is constructed around the interior wormhole spacetime by matching the latter geometry to a unique vacuum exterior solution. In order to further minimize the usage of exotic matter, we then find regions where the surface energy density is positive, thereby satisfying all of the energy conditions at the junction surface. An equation governing the behavior of the radial pressure across the junction surface is also deduced. Lastly, taking advantage of the construction, specific dimensions of the wormhole, namely, the t...

Lobo, F S N

2004-01-01T23:59:59.000Z

153

Double-shell tank waste pretreatment  

SciTech Connect

Double-shell tanks contain most of the transuranic/high-level chemical processing waste generated at the Hanford Site in recent years. A small mass fraction of this waste is responsible for its characterization as transuranic/high-level waste. Pretreatment will partition the waste into a small fraction containing most of the transuranic/high-level components and a large fraction that is a low-level waste. The operations for achieving this objective include dissolution of water-soluble salts, dissolution of precipitated metal oxides in acid, clarification of the resulting dissolver liquors, transuranium element removal by solvent extraction and cesium removal by ion exchange. The primary benefit of pretreatment is a reduction in the overall cost of waste disposal.

Orme, R.M.; Appel, J.N.

1990-01-01T23:59:59.000Z

154

Double Shell Tank (DST) Utilities Specification  

SciTech Connect

This specification establishes the performance requirements and provides the references to the requisite codes and standards to he applied during the design of the Double-Shell Tank (DST) Utilities Subsystems that support the first phase of waste feed delivery (WFD). The DST Utilities Subsystems provide electrical power, raw/potable water, and service/instrument air to the equipment and structures used to transfer low-activity waste (LAW) and high-level waste (HLW) to designated DST staging tanks. The DST Utilities Subsystems also support the equipment and structures used to deliver blended LAW and HLW feed from these staging tanks to the River Protection Project (RPP) Privatization Contractor facility where the waste will be immobilized. This specification is intended to be the basis for new projects/installations. This specification is not intended to retroactively affect previously established project design criteria without specific direction by the program.

SUSIENE, W.T.

2000-04-27T23:59:59.000Z

155

U-157: Ruby Mail Gem Directory Traversal and Shell Command Injection...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

57: Ruby Mail Gem Directory Traversal and Shell Command Injection Vulnerabilities U-157: Ruby Mail Gem Directory Traversal and Shell Command Injection Vulnerabilities April 27,...

156

Preparation of activated carbons from macadamia nut shell and coconut shell by air activation  

Science Conference Proceedings (OSTI)

A novel, three-step process for the production of high-quality activated carbons from macadamia nut shell and coconut shell charcoals is described. In this process the charcoal is (1) heated to a high temperature (carbonized), (2) oxidized in air following a stepwise heating program from low (ca. 450 K) to high (ca. 660 K) temperatures (oxygenated), and (3) heated again in an inert environment to a high temperature (activated). By use of this procedure, activated carbons with surface areas greater than 1,000 m{sub 2}/g are manufactured with an overall yield of 15% (based on the dry shell feed). Removal of carbon mass by the development of mesopores and macropores is largely responsible for increases in the surface area of the carbons above 600 m{sub 2}/g. Thus, the surface area per gram of activated carbon can be represented by an inverse function of the yield for burnoffs between 15 and 60%. These findings are supported by mass-transfer calculations and pore-size distribution measurements. A kinetic model for gasification of carbon by oxygen, which provides for an Eley-Rideal type reaction of a surface oxide with oxygen in air, fits the measured gasification rates reasonably well over the temperature range of 550--660 K.

Tam, M.S.; Antal, M.J. Jr.

1999-11-01T23:59:59.000Z

157

Parity Dependent Shell Model Level Densities for Nuclear Astrophysics  

E-Print Network (OSTI)

Recently, we developed a methodology [1-4] of calculating the spin and parity dependent shell model nuclear level density, which is a very useful ingredient in the Huaser-Feshbach theory for calculating reaction rates for nuclear astrophysics[5]. We developed new techniques based on nuclear statistical spectroscopy [6] to calculate the spin and parity projected moments of the nuclear shell model Hamiltonian, that can be further used to obtain an accurate description of the nuclear level density up to about 15 MeV excitation energy. These techniques were fully tested for the sd-shell nuclei and some light f p-shell nuclei, by comparing with the level density obtained from exact shell model diagonalization. Here we present for the first time comparisons with the exact shell model diagonalization for nuclei heavier than 56 Ni, in a model space spanned by the f 5/2, p 3/2, p 1/2 and g 9/2 orbits. The ratio of nuclear level densities of opposite parities is also discussed. This analysis was possible due to a new and very efficient nuclear shell model code [7] that can provide a large number of states of given spin and parity. PoS(NIC X)132

Mike Scott; Mihai Horoi; Mike Scott

2008-01-01T23:59:59.000Z

158

Local Casimir energies for a thin spherical shell  

SciTech Connect

The local Casimir energy density for a massless scalar field associated with step-function potentials in a 3+1 dimensional spherical geometry is considered. The potential is chosen to be zero except in a shell of thickness {delta}, where it has height h, with the constraint h{delta}=1. In the limit of zero thickness, an ideal {delta}-function shell is recovered. In this limit, the behavior of the energy density as the surface of the shell is approached is studied in both the strong and weak coupling regimes. The former case corresponds to the well-known Dirichlet shell limit. New results, which shed light on the nature of surface divergences and on the energy contained within the shell, are obtained in the weak coupling limit, and for a shell of finite thickness. In the case of zero thickness, the energy has a contribution not only from the local energy density, but from an energy term residing entirely on the surface. It is shown that the latter coincides with the integrated local energy density within the shell. We also study the dependence of local and global quantities on the conformal parameter. In particular new insight is provided on the reason for the divergence in the global Casimir energy in third order in the coupling.

Cavero-Pelaez, Ines; Milton, Kimball A.; Wagner, Jeffrey [Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman, Oklahoma 73019-2061 (United States)

2006-04-15T23:59:59.000Z

159

Letter to the editor/Shell treats LPG  

SciTech Connect

In response to an article on the MALAPROP process Shell International Petroleum Mij. B.V. notes that Shell's Adip process has gained a solid position world-wide in economically treating very large amounts of LPG for the removal of hydrogen sulfide and carbonyl sulfide. Most Shell refineries are equipped with the Adip process, which cumulatively treates approx. 7000 tons/day of LPG. Middle East LPG facilities designed for the Arabian American Oil Co. treat 30,000 tons/day, and an additional 16,000 will come on stream in Jan. 1983. The removal of carbonyl sulfide to a few parts-per-million is easy.

1979-10-01T23:59:59.000Z

160

Doc.384, 'Lali drums/gongs and davui shell trumpets'  

E-Print Network (OSTI)

lali drums/gongs and davui shell trumpets Translation of title Description (to be used in archive entry) Lali drum/gong beats and davui triton-shell trumpets, recorded at Serua Island in July 1957. 12 min 42 seconds. 1) Lali ni soqo ni vaka turaga... Fijian Musical instruments and / or other objects used in performance Lali drums/gongs, davui shell trumpets Level of public access (fully closed, fully open) Fully open last updated on Monday, 4 April 2011 Notes and context (include reference...

Roth, George Kingsley

Note: This page contains sample records for the topic "royal dutch shell" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Energy transfers in shell models for MHD turbulence  

E-Print Network (OSTI)

A systematic procedure to derive shell models for MHD turbulence is proposed. It takes into account the conservation of ideal quadratic invariants such as the total energy, the cross-helicity and the magnetic helicity as well as the conservation of the magnetic energy by the advection term in the induction equation. This approach also leads to simple expressions for the energy exchanges as well as to unambiguous definitions for the energy fluxes. When applied to the existing shell models with nonlinear interactions limited to the nearest neighbour shells, this procedure reproduces well known models but suggests a reinterpretation of the energy fluxes.

T. Lessinnes; M. K. Verma; D. Carati

2008-07-31T23:59:59.000Z

162

Photoionization of hydrogenlike ions surrounded by a charged spherical shell  

Science Conference Proceedings (OSTI)

Within the framework of a model of a hollow atom as a hydrogenlike multicharged ion located at the center of a spherical shell formed by highly excited electrons, the photoionization cross sections of the inner 1s level of the ion have been calculated. The results show that the existence of the outer electronic shell of the hollow atom results in oscillations in the energy dependence of the photoionization cross section. It has been demonstrated also that the photoionization cross section as a function of photon energy is extremely sensitive to the magnitude of the discontinuity of the electric field at the surface of the outer electronic shell.

Baltenkov, A. S. [Arifov Institute of Electronics, 100125, Tashkent (Uzbekistan); Manson, S. T. [Department of Physics and Astronomy, Georgia State University, Atlanta, Georgia 30303 (United States); Msezane, A. Z. [Center for Theoretical Studies of Physical Systems, Clark Atlanta University, Atlanta, Georgia 30314 (United States)

2007-10-15T23:59:59.000Z

163

Thin-shell wormholes from regular charged black holes  

E-Print Network (OSTI)

We investigate a new thin-shell wormhole constructed by surgically grafting two regular charged black holes arising from the action using nonlinear electrodynamics coupled to general relativity. The stress-energy components within the shell violate the null and weak energy conditions but obey the strong energy condition. We study the stability in two ways: (i) taking a specific equation of state at the throat and (ii) analyzing the stability to linearized spherically symmetric perturbations about a static equilibrium solution. Various other aspects of this thin-shell wormhole are also analyzed.

F. Rahaman; K A Rahman; Sk. A Rakib; Peter K. F. Kuhfittig

2009-09-06T23:59:59.000Z

164

Ab Initio No-Core Shell Model  

SciTech Connect

A long-standing goal of nuclear theory is to determine the properties of atomic nuclei based on the fundamental interactions among the protons and neutrons (i.e., nucleons). By adopting nucleon-nucleon (NN), three-nucleon (NNN) and higher-nucleon interactions determined from either meson-exchange theory or QCD, with couplings fixed by few-body systems, we preserve the predictive power of nuclear theory. This foundation enables tests of nature's fundamental symmetries and offers new vistas for the full range of complex nuclear phenomena. Basic questions that drive our quest for a microscopic predictive theory of nuclear phenomena include: (1) What controls nuclear saturation; (2) How the nuclear shell model emerges from the underlying theory; (3) What are the properties of nuclei with extreme neutron/proton ratios; (4) Can we predict useful cross sections that cannot be measured; (5) Can nuclei provide precision tests of the fundamental laws of nature; and (6) Under what conditions do we need QCD to describe nuclear structure, among others. Along with other ab initio nuclear theory groups, we have pursued these questions with meson-theoretical NN interactions, such as CD-Bonn and Argonne V18, that were tuned to provide high-quality descriptions of the NN scattering phase shifts and deuteron properties. We then add meson-theoretic NNN interactions such as the Tucson-Melbourne or Urbana IX interactions. More recently, we have adopted realistic NN and NNN interactions with ties to QCD. Chiral perturbation theory within effective field theory ({chi}EFT) provides us with a promising bridge between QCD and hadronic systems. In this approach one works consistently with systems of increasing nucleon number and makes use of the explicit and spontaneous breaking of chiral symmetry to expand the strong interaction in terms of a dimensionless constant, the ratio of a generic small momentum divided by the chiral symmetry breaking scale taken to be about 1 GeV/c. The resulting NN and NNN interactions, characterized by the order of the expansion retained (e.g. 'next-to-next-to leading order' is NNLO), provide a high-quality fit to the NN data and the A = 3 ground-state (g.s.) properties. The derivations of NN, NNN, etc. interactions within meson-exchange and {chi}EFT are well-established but are not subjects of this review. Our focus is solution of the non-relativistic quantum many-body Hamiltonian that includes these interactions using our no core shell model (NCSM) formalism. In the next section we will briefly outline the NCSM formalism and then present applications, results and extensions in later sections.

Barrett, B R; Navratil, P; Vary, J P

2011-04-11T23:59:59.000Z

165

Energy conditions, traversable wormholes and dust shells  

E-Print Network (OSTI)

Firstly, we review the pointwise and averaged energy conditions, the quantum inequality and the notion of the ``volume integral quantifier'', which provides a measure of the ``total amount'' of energy condition violating matter. Secondly, we present a specific metric of a spherically symmetric traversable wormhole in the presence of a generic cosmological constant, verifying that the null and the averaged null energy conditions are violated, as was to be expected. Thirdly, a pressureless dust shell is constructed around the interior wormhole spacetime by matching the latter geometry to a unique vacuum exterior solution. In order to further minimize the usage of exotic matter, we then find regions where the surface energy density is positive, thereby satisfying all of the energy conditions at the junction surface. An equation governing the behavior of the radial pressure across the junction surface is also deduced. Lastly, taking advantage of the construction, specific dimensions of the wormhole, namely, the throat radius and the junction interface radius, and estimates of the total traversal time and maximum velocity of an observer journeying through the wormhole, are also found by imposing the traversability conditions.

Francisco S. N. Lobo

2004-10-18T23:59:59.000Z

166

On heat capacity of nanoclusters with a shell structure  

Science Conference Proceedings (OSTI)

Pair correlation effects in nanoclusters with a shell structure are analyzed by the exact diagonalization method. The singularity in the behavior of the heat capacity of such clusters is analyzed using the many-particle spectrum of nanoclusters.

Baturin, V. S., E-mail: baturin@lpi.ru; Losyakov, V. V., E-mail: losyakov@lpi.ru [Russian Academy of Sciences, Lebedev Physical Institute (Russian Federation)

2011-02-15T23:59:59.000Z

167

String Gas Shells, their Dual Radiation and Hedgehog Signature Control  

E-Print Network (OSTI)

We search for spherically symmetric, stationary solutions with a string gas shell as a source. The requirement of a uniform newtonian potential, or constancy of the 00 component of the metric, implies the existence of a "dual" radiation, which we argue can be interpreted as representing the virtual quantum fluctuations that stabilize the shell. A string hedgehog can be introduced also into the solution. For zero or small hedgehog strength the string gas shell is of a regular nature, while the dual radiation is of a spacelike nature. For higher hedgehog strengths however the radiation "materializes" and becomes timelike while the string gas shell becomes space like. The significance of these solutions for the quantum theory is discussed.

E. I. Guendelman

2009-03-12T23:59:59.000Z

168

Casimir interactions of an object inside a spherical metal shell  

E-Print Network (OSTI)

We investigate the electromagnetic Casimir interactions of an object contained within an otherwise empty, perfectly conducting spherical shell. For a small object we present analytical calculations of the force, which is ...

Zaheer, Saad

169

Double Shell Tank (DST) Monitor and Control Subsystem Specification  

Science Conference Proceedings (OSTI)

This specification revises the performance requirements and provides references to the requisite codes and standards to be applied during design of the Double-Shell Tank (DST) Monitor and Control Subsystem that supports the first phase of Waste Feed Delivery.

BAFUS, R.R.

2000-11-03T23:59:59.000Z

170

Double Shell Tank (DST) Process Waste Sampling Subsystem Specification  

SciTech Connect

This specification establishes the performance requirements and provides references to the requisite codes and standards to be applied to the Double-Shell Tank (DST) Process Waste Sampling Subsystem which supports the first phase of Waste Feed Delivery.

RASMUSSEN, J.H.

2000-05-03T23:59:59.000Z

171

STATEMENT OF CONSIDERATIONS REQUEST BY SHELL SOLAR INDUSTRIES...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

CH-1345 As set out in the attached waiver petition and in subsequent discussions with DOE Patent Counsel, Shell Solar Industries LP (SSI) has requested an advance waiver of...

172

STATEMENT OF CONSIDERATIONS REQUEST BY SHELL SOLAR INDUSTRIES...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

As set out in the attached waiver petition and in subsequent discussions with DOE, Shell Solar Industries, LP (SSI) has requested an advance waiver of domestic and foreign patent...

173

POSITION OF LARGE POWER PRODUCERS IN ELECTRICITY MARKETS OF NORTH WESTERN EUROPE Report for the Dutch Energy Council on the Electricity Markets  

E-Print Network (OSTI)

This report is prepared for the Dutch Energy Council (Algemene Energieraad) to provide input for a discussion among experts and members of the Energy Council on European electricity markets. The final version of this report includes some suggestions from this discussion that took place on December 16, 2002.

M. J. J. Scheepers; A. F. Wals

2003-01-01T23:59:59.000Z

174

Functional Analysis for Double Shell Tank (DST) Subsystems  

Science Conference Proceedings (OSTI)

This functional analysis identifies the hierarchy and describes the subsystem functions that support the Double-Shell Tank (DST) System described in HNF-SD-WM-TRD-007, System Specification for the Double-Shell Tank System. Because of the uncertainty associated with the need for upgrades of the existing catch tanks supporting the Waste Feed Delivery (WFD) mission, catch tank functions are not addressed in this document. The functions identified herein are applicable to the Phase 1 WFD mission only.

SMITH, D.F.

2000-08-22T23:59:59.000Z

175

The Covariant Electromagnetic Casimir Effect for Real Conducting Cylindrical Shells  

E-Print Network (OSTI)

Using covariant quantization of the electromagnetic field, the Casimir force per unit area experienced by a long conducting cylindrical shell, under both Dirichlet and Neumann boundary conditions, is calculated. The renormalization procedure is based on the plasma cut-off frequency for real conductors. The real case of a gold (silver) cylindrical shell is considered and the corresponding electromagnetic Casimir pressure is computed. It is discussed that the Dirichlet and Neumann problems should be considered separately without adding their corresponding results.

H. Razmi; N. Fadaei

2013-07-31T23:59:59.000Z

176

Mineral processing techniques for recycling investment casting shell  

Science Conference Proceedings (OSTI)

The Albany Research Center of the U.S. Department of Energy used materials characterization and minerals beneficiation methods to separate and beneficially modify spent investment-mold components to identify recycling opportunities and minimize environmentally sensitive wastes. The physical and chemical characteristics of the shell materials were determined and used to guide bench-scale research to separate reusable components by mineral-beneficiation techniques. Successfully concentrated shell materials were evaluated for possible use in new markets.

Dahlin, Cheryl L.; Nilsen, David N.; Dahlin, David C.; Hunt, Alton H.; Collins, W. Keith

2002-01-01T23:59:59.000Z

177

FABRICATION OF GAS-FILLED TUNGSTEN-COATED GLASS SHELLS  

SciTech Connect

OAK-B135 Deuterium (D{sub 2}) filled glass shells coated with a high Z element are needed for high energy density (HED) experiments by researchers at Los Alamos National Laboratory. They report here on our initial attempt to produce such shells. Glass shells made using the drop tower technique were coated with gold, palladium or tungsten, or a mixture of two of these elements. It was found that gold and palladium coatings did not stick well to the glass and resulted in poor or delaminated films. Tungsten coatings resulted in films suitable for these targets. Bouncing of shells during coating resulted in uniform tungsten coatings, but the surface of such coatings were filled with small nodules. Proper agitation of shells using a tapping technique resulted in smooth films with minimal particulate contamination. For coating rates of {approx} 0.15 {micro}m/hr coatings with {approx} 2 nm RMS surface finish could be deposited. The surface roughness of coatings at higher rates, 0.7 {micro}m/hr, was considerably worse ({approx} 100 nm RMS). The columnar structure of the coatings allowed permeation filling of the tungsten coated glass shells with deuterium at 300 C.

NIKROO,A; BAUGH,W; STEINMAN,D.A

2003-06-01T23:59:59.000Z

178

Microsoft Word - 201312_Fuels_Industry_Newsletter_December_2013.docx  

NLE Websites -- All DOE Office Websites (Extended Search)

scraps proposed Louisiana GTL complex" scraps proposed Louisiana GTL complex" By Bradley Olson, Hydrocarbon Processing, December 6, 2013 THE HAGUE (Bloomberg) -- Royal Dutch Shell halted plans to build a $20 billion gas-to- liquids plant in Louisiana, citing the potential cost and uncertainty about future crude and natural gas prices. The project would have used natural gas to produce 140,000 bpd of liquid fuels and other products normally made from oil, the company said in a statement. Despite ample United States gas supplies from a boom in shale production, gas-to-liquids isn't "a viable option for Shell in North America," the company said. Shell started the first commercial gas-to-liquids plant in 1993, using a process developed in Germany and used to make fuels during World War II. The company completed the $19 billion

179

Microsoft Word - 201309_Fuels_Industry_Newsletter_September_2013.docx  

NLE Websites -- All DOE Office Websites (Extended Search)

opens bidding for ethane at proposed Beaver County cracker plant" opens bidding for ethane at proposed Beaver County cracker plant" By Anya Litvak, Pittsburgh Post-Gazette, August 27, 2013 Royal Dutch Shell hasn't decided if it will build an ethane cracker in Beaver County, but it's taking bids from oil and gas companies in the Marcellus and Utica shales to gauge how much ethane would be available if it pulls the trigger. Shell began a two-month bidding period Tuesday to supplement commitments it already has secured with Consol Energy Inc., Noble Energy Inc., Seneca Resources Corp., and Hilcorp Energy Co. Shell's own exploration and production company also would feed ethane into a potential cracker. Absent from that list are some of the region's largest so-called wet gas producers, including Range Resources, Chevron Corp., Chesapeake Energy Corp. and EQT Corp.

180

Cranked Nilsson-Strutinsky vs the spherical shell model: A comparative study of pf-shell nuclei  

Science Conference Proceedings (OSTI)

A comparative study is performed of a deformed mean field theory, represented by the cranked Nilsson-Strutinsky (CNS) model and the spherical shell model. Energy spectra, occupation numbers, B(E2) values, and spectroscopic quadrupole moments in the light pf-shell nuclei are calculated in the two models and compared. The result is also compared to available experimental data which are generally well described by the shell model. Although the Nilsson-Strutinsky calculation does not include pairing, both the subshell occupation numbers and quadrupole properties are found to be rather similar in the two models. It is also shown that 'unpaired' shell model calculations produce energies similar to those from the CNS. The role of the pairing energy in the description of backbending and signature splitting in odd-mass nuclei is also discussed.

Juodagalvis, Andrius [Institute of Theoretical Physics and Astronomy, A. Gostauto St. 12, LT-01108 Vilnius (Lithuania); Ragnarsson, Ingemar; Angstromberg, Sven [Mathematical Physics, Lund Institute of Technology, P.O. Box 118, S-22100 Lund (Sweden)

2006-04-15T23:59:59.000Z

Note: This page contains sample records for the topic "royal dutch shell" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

The Royal Academy of Engineering  

E-Print Network (OSTI)

extraction in the UK: a review of hydraulic fracturing June 2012Shale gas extraction in the UK: a review of hydraulic fracturing

Attribution-noncommercial-sharealike Cc By-nc-sa; W Royalsociety. Org

2012-01-01T23:59:59.000Z

182

K-SHELL PHOTOABSORPTION STUDIES OF THE CARBON ISONUCLEAR SEQUENCE  

SciTech Connect

K-shell photoabsorption cross sections for the isonuclear C I-C IV ions have been computed using the R-matrix method. Above the K-shell threshold, the present results are in good agreement with the independent-particle results of Reilman and Manson. Below threshold, we also compute the strong 1s {yields} np absorption resonances with the inclusion of important spectator Auger broadening effects. For the lowest 1s {yields} 2p, 3p resonances, comparisons to available C II, C III, and C IV experimental results show good agreement in general for the resonance strengths and positions. Our results also provide detailed information on the C I K-shell photoabsorption cross section including the strong resonance features, since very limited laboratory experimental data exist. The resultant R-matrix cross sections are then used to model the Chandra X-ray absorption spectrum of the blazar Mkn 421.

Hasoglu, M. F.; Abdel-Naby, Sh. A.; Gorczyca, T. W. [Department of Physics, Western Michigan University, Kalamazoo, MI 49008-5252 (United States); Drake, J. J. [Harvard-Smithsonian Center for Astrophysics, MS-70, 60 Garden Street, Cambridge, MA 02138 (United States); McLaughlin, B. M. [Centre for Theoretical Atomic, Molecular and Optical Physics (CTAMOP), School of Mathematics and Physics, David Bates Building, 7 College Park, Queen's University Belfast, Belfast BT7 1NN (United Kingdom)

2010-12-01T23:59:59.000Z

183

Overview of Hanford Single Shell Tank (SST) Structural Integrity - 14023  

Science Conference Proceedings (OSTI)

To improve the understanding of the single-shell tanks (SSTs) integrity, Washington River Protection Solutions, LLC (WRPS), the USDOE Hanford Site tank contractor, developed an enhanced Single-Shell Tank Integrity Project (SSTIP) in 2009. An expert panel on SST integrity, consisting of various subject matters experts in industry and academia, was created to provide recommendations supporting the development of the project. This panel developed 33 recommendations in four main areas of interest: structural integrity, liner degradation, leak integrity and prevention, and mitigation of contamination migration, Seventeen of these recommendations were used to develop the basis for the M-45-10-1 Change Package for the Hanford Federal Agreement and Compliance Order, which is also known as the Tri-Party Agreement. The structural integrity of the tanks is a key element in completing the cleanup mission at the Hanford Site. There are eight primary recommendations related to the structural integrity of Hanford Single-Shell Tanks. Six recommendations are being implemented through current and planned activities. The structural integrity of the Hanford is being evaluated through analysis, monitoring, inspection, materials testing, and construction document review. Structural evaluation in the form of analysis is performed using modern finite element models generated in ANSYS. The analyses consider in-situ, thermal, operating loads and natural phenomena such as earthquakes. Structural analysis of 108 of 149 Hanford Single-Shell Tanks has concluded that the tanks are structurally sound and meet current industry standards. Analysis of the remaining Hanford Single-Shell Tanks is scheduled for FY2014. Hanford Single-Shell Tanks are monitored through a dome deflection program. The program looks for deflections of the tank dome greater than ? inch. No such deflections have been recorded. The tanks are also subjected to visual inspection. Digital cameras record the interior surface of the concrete tanks, looking for cracks and other surface conditions that may indicate signs of structural distress. The condition of the concrete and rebar of the Hanford Single-Shell Tanks is currently being tested and planned for additional activities in the near future. Concrete and rebar removed from the dome of a 65 year old tank was tested for mechanics properties and condition. Results indicated stronger than designed concrete with additional Petrographic examination and rebar completed. Material properties determined from previous efforts combined with current testing and construction document review will help to generate a database that will provide indication of Hanford Single-Shell Tank structural integrity.

Rast, Richard S.; Washenfelder, Dennis J.; Johnson, Jeremy M.

2013-11-14T23:59:59.000Z

184

Oxygen Reduction on Well-Defined Core-Shell Nanocatalysts: Particle Size, Facet, and Pt Shell Thickness Effects  

DOE Green Energy (OSTI)

We examined the effects of the thickness of the Pt shell, lattice mismatch, and particle size on specific and mass activities from the changes in effective surface area and activity for oxygen reduction induced by stepwise Pt-monolayer depositions on Pd and Pd{sub 3}Co nanoparticles. The core?shell structure was characterized at the atomic level using Z-contrast scanning transmission electron microscopy coupled with element-sensitive electron energy loss spectroscopy. The enhancements in specific activity are largely attributed to the compressive strain effect based on the density functional theory calculations using a nanoparticle model, revealing the effect of nanosize-induced surface contraction on facet-dependent oxygen binding energy. The results suggest that moderately compressed (111) facets are most conducive to oxygen reduction reaction on small nanoparticles and indicate the importance of concerted structure and component optimization for enhancing core?shell nanocatalysts activity and durability.

Wang, J.X.; Inada, H.; Wu, L.; Zhu, Y.; Choi, Y.; Liu, P.; Zhou, W.-P.; Adzic, R.R.

2009-11-09T23:59:59.000Z

185

HANFORD DOUBLE SHELL TANK THERMAL AND SEISMIC PROJECT SEISMIC ANALYSIS OF HANFORD DOUBLE SHELL TANKS  

Science Conference Proceedings (OSTI)

M&D Professional Services, Inc. (M&D) is under subcontract to Pacific Northwest National Laboratories (PNNL) to perform seismic analysis of the Hanford Site Double-Shell Tanks (DSTs) in support of a project entitled Double-Shell Tank (DST) Integrity Project - DST Thermal and Seismic Analyses. The original scope of the project was to complete an up-to-date comprehensive analysis of record of the DST System at Hanford in support of Tri-Party Agreement Milestone M-48-14. The work described herein was performed in support of the seismic analysis of the DSTs. The thermal and operating loads analysis of the DSTs is documented in Rinker et al. (2004). Although Milestone M-48-14 has been met, Revision I is being issued to address external review comments with emphasis on changes in the modeling of anchor bolts connecting the concrete dome and the steel primary tank. The work statement provided to M&D (PNNL 2003) required that a nonlinear soil structure interaction (SSI) analysis be performed on the DSTs. The analysis is required to include the effects of sliding interfaces and fluid sloshing (fluid-structure interaction). SSI analysis has traditionally been treated by frequency domain computer codes such as SHAKE (Schnabel, et al. 1972) and SASSI (Lysmer et al. 1999a). Such frequency domain programs are limited to the analysis of linear systems. Because of the contact surfaces, the response of the DSTs to a seismic event is inherently nonlinear and consequently outside the range of applicability of the linear frequency domain programs. That is, the nonlinear response of the DSTs to seismic excitation requires the use of a time domain code. The capabilities and limitations of the commercial time domain codes ANSYS{reg_sign} and MSC Dytran{reg_sign} for performing seismic SSI analysis of the DSTs and the methodology required to perform the detailed seismic analysis of the DSTs has been addressed in Rinker et al (2006a). On the basis of the results reported in Rinker et al. (2006a), it is concluded that time-domain SSI analysis using ANSYS{reg_sign} is justified for predicting the global response of the DSTs. The most significant difference between the current revision (Revision 1) of this report and the original issue (Revision 0) is the treatment of the anchor bolts that tie the steel dome of the primary tank to the concrete tank dome.

MACKEY TC; RINKER MW; CARPENTER BG; HENDRIX C; ABATT FG

2009-01-15T23:59:59.000Z

186

HANFORD DOUBLE SHELL TANK (DST) THERMAL & SEISMIC PROJECT SEISMIC ANALYSIS OF HANFORD DOUBLE SHELL TANKS  

Science Conference Proceedings (OSTI)

M&D Professional Services, Inc. (M&D) is under subcontract to Pacific Northwest National Laboratory (PNNL) to perform seismic analysis of the Hanford Site double-shell tanks (DSTs) in support of a project entitled ''Double-Shell Tank (DSV Integrity Project--DST Thermal and Seismic Analyses)''. The overall scope of the project is to complete an up-to-date comprehensive analysis of record of the DST system at Hanford in support of Tri-Party Agreement Milestone M-48-14, The work described herein was performed in support of the seismic analysis of the DSTs. The thermal and operating loads analysis of the DSTs is documented in Rinker et al. (2004). The work statement provided to M&D (PNNL 2003) required that the seismic analysis of the DSTs assess the impacts of potentially non-conservative assumptions in previous analyses and account for the additional soil mass due to the as-found soil density increase, the effects of material degradation, additional thermal profiles applied to the full structure including the soil-structure response with the footings, the non-rigid (low frequency) response of the tank roof, the asymmetric seismic-induced soil loading, the structural discontinuity between the concrete tank wall and the support footing and the sloshing of the tank waste. The seismic analysis considers the interaction of the tank with the surrounding soil and the effects of the primary tank contents. The DSTs and the surrounding soil are modeled as a system of finite elements. The depth and width of the soil incorporated into the analysis model are sufficient to obtain appropriately accurate analytical results. The analyses required to support the work statement differ from previous analysis of the DSTs in that the soil-structure interaction (SSI) model includes several (nonlinear) contact surfaces in the tank structure, and the contained waste must be modeled explicitly in order to capture the fluid-structure interaction behavior between the primary tank and contained waste.

MACKEY, T.C.

2006-03-17T23:59:59.000Z

187

Tss4U BV formerly Holecsol R S Renewable Energy Systems and Shell...  

Open Energy Info (EERE)

Tss4U BV formerly Holecsol R S Renewable Energy Systems and Shell Solar Energy Jump to: navigation, search Name Tss4U BV (formerly Holecsol, R&S Renewable Energy Systems and Shell...

188

Application to Export Electric Energy OE Doc No. EA-339-A Shell...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

(US), L.P.: Federal Register Notice, Volume 78, No. 45 - March 7, 2013 Application from Shell Energy to export electric energy to Canada. Federal Register Notice. EA-339-A Shell...

189

Assembly of ordered carbon shells on semiconducting nanomaterials  

DOE Patents (OSTI)

In some embodiments of the invention, encapsulated semiconducting nanomaterials are described. In certain embodiments the nanostructures described are semiconducting nanomaterials encapsulated with ordered carbon shells. In some aspects a method for producing encapsulated semiconducting nanomaterials is disclosed. In some embodiments applications of encapsulated semiconducting nanomaterials are described.

Sutter, Eli Anguelova; Sutter, Peter Werner

2012-10-02T23:59:59.000Z

190

Casimir energy of a spherical shell in $?-$Minkowski spacetime  

E-Print Network (OSTI)

We study the Casimir energy of a spherical shell of radius $a$ in $\\kappa$-Minkowski spacetime for a complex field with an asymmetric ordering and obtain the energy up to $O(1/\\kappa^2)$. We show that the vacuum breaks particle and anti-particle symmetry if one requires the spectra to be consistent with the blackbody radiation at the commutative limit.

Hyeong-Chan Kim; Chaiho Rim; Jae Hyung Yee

2007-10-30T23:59:59.000Z

191

Double-shell tank waste retrieval survey package  

SciTech Connect

Westinghouse Hanford Company is seeking industry solutions to underground double-shell tank waste retrieval at the Hanford Site located in southeastern Washington. This is not a request for proposals; it is a request for information to facilitate continued discussion. Westinghouse Hanford Company will not reimburse any costs incurred for providing the information requested.

Berglin, E.J.

1995-12-01T23:59:59.000Z

192

Mixer pump test plan for double shell tank AZ-101  

Science Conference Proceedings (OSTI)

Mixer pump systems have been chosen as the method for retrieval of tank wastes contained in double shell tanks at Hanford. This document describes the plan for testing and demonstrating the ability of two 300 hp mixer pumps to mobilize waste in tank AZ-101. The mixer pumps, equipment and instrumentation to monitor the test were installed by Project W-151.

STAEHR, T.W.

1999-05-12T23:59:59.000Z

193

Final Report Fermionic Symmetries and Self consistent Shell Model  

SciTech Connect

In this final report in the field of theoretical nuclear physics we note important accomplishments.We were confronted with "anomoulous" magnetic moments by the experimetalists and were able to expain them. We found unexpected partial dynamical symmetries--completely unknown before, and were able to a large extent to expain them.The importance of a self consistent shell model was emphasized.

Larry Zamick

2008-11-07T23:59:59.000Z

194

Organized thiol functional groups in mesoporous core shell colloids  

Science Conference Proceedings (OSTI)

The co-condensation in situ of tetraethoxysilane (TEOS) and mercaptopropyltrimethoxysilane (MPTMS) using cetyltrimethylammonium bromide (CTAB) as a template results in the synthesis of multilayered mesoporous structured SiO{sub 2} colloids with 'onion-like' chemical environments. Thiol groups were anchored to an inner selected SiO{sub 2} porous layer in a bilayered core shell particle producing different chemical regions inside the colloidal layered structure. X-Ray Photoelectron Spectroscopy (XPS) shows a preferential anchoring of the -SH groups in the double layer shell system, while porosimetry and simple chemical modifications confirm that pores are accessible. We can envision the synthesis of interesting colloidal objects with defined chemical environments with highly controlled properties. - Graphical abstract: Mesoporous core shell SiO{sub 2} colloids with organized thiol groups. Highlights: Black-Right-Pointing-Pointer Double shell mesoporous silica colloids templated with CTAB. Black-Right-Pointing-Pointer Sequential deposition of mesoporous SiO{sub 2} layers with different chemistries. Black-Right-Pointing-Pointer XPS shows the selective functionalization of mesoporous layers with thiol groups.

Marchena, Martin H. [Gerencia Quimica, Centro Atomico Constituyentes, Comision Nacional de Energia Atomica (CNEA), Avda. Gral. Paz 1499, B1650KNA Buenos Aires (Argentina); Granada, Mara [Centro Atomico Bariloche-CNEA, 8400 San Carlos de Bariloche (Argentina); Instituto Balseiro-Centro Atomico Bariloche-CNEA, San Carlos de Bariloche 8400 (Argentina); Bordoni, Andrea V. [Gerencia Quimica, Centro Atomico Constituyentes, Comision Nacional de Energia Atomica (CNEA), Avda. Gral. Paz 1499, B1650KNA Buenos Aires (Argentina); Joselevich, Maria [Asociacion Civil Expedicion Ciencia, Cabrera 4948, C1414BGP Buenos Aires (Argentina); Troiani, Horacio [Centro Atomico Bariloche-CNEA, 8400 San Carlos de Bariloche (Argentina); Instituto Balseiro-Centro Atomico Bariloche-CNEA, San Carlos de Bariloche 8400 (Argentina); Williams, Federico J. [DQIAQyF-INQUIMAE FCEN, Universidad de Buenos Aires, Ciudad Universitaria, Pabellon II, C1428EHA Buenos Aires (Argentina); Wolosiuk, Alejandro, E-mail: wolosiuk@cnea.gov.ar [Gerencia Quimica, Centro Atomico Constituyentes, Comision Nacional de Energia Atomica (CNEA), Avda. Gral. Paz 1499, B1650KNA Buenos Aires (Argentina)

2012-03-15T23:59:59.000Z

195

Thermodynamics of a collapsing shell in an expanding Universe  

E-Print Network (OSTI)

We describe the quasi-static collapse of a radiating, spherical shell of matter in de Sitter space-time using a thermodynamical formalism. It is found that the specific heat at constant area and other thermodynamical quantities exhibit singularities related to phase transitions during the collapse.

G. L. Alberghi; R. Casadio; G. Venturi

2004-09-30T23:59:59.000Z

196

Shell model transition densities for electron and pion scattering  

Science Conference Proceedings (OSTI)

The general features of an effective interaction suitable for the calculation of cross-shell matrix elements in the /sup 16/O region are discussed. Shell-model transition densities are applied to the 1 hw excitation of non-normal parity states in light-nuclei, with /sup 13/C used as a prime example. The longitudinal form factors from such a calculation require enhancement and transverse form factors (spin-excitations) need to be quenched. The shapes of form factors also exhibit systematic discrepancies which are correlated with the discrepancies in magnitude. The problem with shapes is particularly marked for C1 form factors. It is shown that the addition of small components to the transition density, corresponding to the excitation of a single particle through two or three major shells, works in the right direction as far as both magnitude and shape are concerned and that such additions are particularly effective in the case of C1 excitations. For the transverse form factors in /sup 13/C, the use of Woods-Saxon radial wave functions leads to reductions of up to 50% compared with harmonic oscillator wave functions. The excitation of states with dominant multiparticle-multihole components, and the role played by admixtures of such configurations in low-lying states, is considered. Some of the problems associated with the use of shell-model bases extended to include high-lying configurations in the giant resonance region are pointed out. 15 refs., 15 figs., 1 tab.

Millener, D.J.

1987-01-01T23:59:59.000Z

197

Coupling water and smoke to thin deformable and rigid shells  

Science Conference Proceedings (OSTI)

We present a novel method for solid/fluid coupling that can treat infinitesimally thin solids modeled by a lower dimensional triangulated surface. Since classical solid/fluid coupling algorithms rasterize the solid body onto the fluid grid, an entirely ... Keywords: cloth, rigid bodies, shells, smoke, water

Eran Guendelman; Andrew Selle; Frank Losasso; Ronald Fedkiw

2005-07-01T23:59:59.000Z

198

Fabrication of magnetite/silica/titania core-shell nanoparticles  

Science Conference Proceedings (OSTI)

Fe3O4/SiO2/TiO2 core-shell nanoparticles were synthesized via a sol-gel method with the aid of sonication. Fe3O4 nanoparticles were being encapsulated within discrete silica nanospheres, ...

Suh Cem Pang; Sze Yun Kho; Suk Fun Chin

2012-01-01T23:59:59.000Z

199

Tksh: a Tcl library for KornShell  

Science Conference Proceedings (OSTI)

This paper describes Tksh, an implementation of the Tcl C library written on top of the library for the new KornShell (ksh93). Tksh emulates the behavior of Tcl by using the API that is provided for extending ksh93, which is similar to the Tcl library ...

Jeffrey Korn

1996-07-01T23:59:59.000Z

200

Shell Future Fuels and CO2 | Open Energy Information  

Open Energy Info (EERE)

Shell Future Fuels and CO2 Shell Future Fuels and CO2 Jump to: navigation, search Name Shell Future Fuels and CO2 Place Glasgow, Scotland, United Kingdom Zip G1 9BG Sector Hydro, Hydrogen Product UK-based division of Shell's Oil Products business active in the hydrogen & CCS sectors as a developer of technology. Coordinates 55.857809°, -4.242511° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":55.857809,"lon":-4.242511,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "royal dutch shell" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Shell-armored wood cobbles as a potential criterion for detrital coal deposits  

Science Conference Proceedings (OSTI)

Shell-armored wood cobbles occur on detrital-peat beaches along the seaward edge of the Mississippi Delta. Shell material consists exclusively of Mulinia lateralis, a dwarf surf clam. Soft, heavy, waterlogged wood fragments are abraded and become armored by hard shells in response to wave activity on the beach. Although their preservation potential is suspect, fossilized shell-armored wood clasts would probably be recognized as a type of coal ball and might indicate an allochthonous origin for the host coal.

DiMarco, M.J.; Nummedal, D.

1986-01-01T23:59:59.000Z

202

Industrial mixing techniques for Hanford double-shell tanks  

Science Conference Proceedings (OSTI)

Jet mixer pumps are currently the baseline technology for sludge mobilization and mixing in one-million gallon double-shell tanks at the Hanford and Savannah River Sites. Improvements to the baseline jet mixer pump technology are sought because jet mixer pumps have moving parts that may fail or require maintenance. Moreover, jet mixers are relatively expensive, they heat the waste, and, in some cases, may not mobilize enough of the sludge. This report documents a thorough literature search for commercially available applicable mixing technologies that could be used for double-shell tank sludge mobilization and mixing. Textbooks, research articles, conference proceedings, mixing experts, and the Thomas Register were consulted to identify applicable technologies. While there are many commercial methods that could be used to mobilize sludge or mix the contents of a one-million gallon tank, few will work given the geometrical constraints (e.g., the mixer must fit through a 1.07-m-diameter riser) or the tank waste properties (e.g., the sludge has such a high yield stress that it generally does not flow under its own weight). Pulsed fluid jets and submersible Flygt mixers have already been identified at Hanford and Savannah River Sites for double-shell tank mixing applications. While these mixing technologies may not be applicable for double-shell tanks that have a thick sludge layer at the bottom (since too many of these mixers would need to be installed to mobilize most of the sludge), they may have applications in tanks that do not have a settled solids layer. Retrieval projects at Hanford and other U.S. Department of Energy sites are currently evaluating the effectiveness of these mixing techniques for tank waste applications. The literature search did not reveal any previously unknown technologies that should be considered for sludge mobilization and mixing in one-million gallon double-shell tanks.

Daymo, E.A.

1997-09-01T23:59:59.000Z

203

A BUBBLING NEARBY MOLECULAR CLOUD: COMPLETE SHELLS IN PERSEUS  

SciTech Connect

We present a study of the shells (and bubbles) in the Perseus molecular cloud using the COMPLETE survey large-scale {sup 12}CO(1-0) and {sup 13}CO(1-0) maps. The 12 shells reported here are spread throughout most of the Perseus cloud and have circular or arc-like morphologies with a range in radius of about 0.1-3 pc. Most of them have not been detected before most likely because maps of the region lacked the coverage and resolution needed to distinguish them. The majority of the shells are coincident with infrared nebulosity of similar shape and have a candidate powering source near the center. We suggest that they are formed by the interaction of spherical or very wide angle winds powered by young stars inside or near the Perseus molecular cloud-a cloud that is commonly considered to be forming mostly low-mass stars. Two of the 12 shells are powered by high-mass stars close to the cloud, while the others appear to be powered by low- or intermediate-mass stars in the cloud. We argue that winds with a mass loss rate of about 10{sup -8} to 10{sup -6} M{sub Sun} yr{sup -1} are required to produce the observed shells. Our estimates indicate that the energy input rate from these stellar winds is similar to the turbulence dissipation rate. We conclude that in Perseus the total energy input from both collimated protostellar outflows and powerful spherical winds from young stars is sufficient to maintain the turbulence in the molecular cloud. Large-scale molecular line and IR continuum maps of a sample of clouds will help determine the frequency of this phenomenon in other star-forming regions.

Arce, Hector G. [Department of Astronomy, Yale University, New Haven, CT 06520 (United States); Borkin, Michelle A. [School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138 (United States); Goodman, Alyssa A. [Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138 (United States); Pineda, Jaime E. [ESO, 85748 Garching (Germany); Beaumont, Christopher N., E-mail: hector.arce@yale.edu, E-mail: michelle_borkin@harvard.edu, E-mail: agoodman@cfa.harvard.edu, E-mail: jaime.pineda@manchester.ac.uk, E-mail: beaumont@ifa.hawaii.edu, E-mail: cbeaumont@cfa.harvard.edu [Institute for Astronomy, University of Hawaii at Manoa, Honolulu, HI 96822 (United States)

2011-12-01T23:59:59.000Z

204

Polarimetric Remote Sensing in the Visible to Near Infrared James R. Shell II  

E-Print Network (OSTI)

Polarimetric Remote Sensing in the Visible to Near Infrared by James R. Shell II B.S. Physics Title of Dissertation: Polarimetric Remote Sensing in the Visible to Near Infrared I, James R. Shell II Remote Sensing in the Visible to Near Infrared by James R. Shell II Submitted to the Chester F. Carlson

Salvaggio, Carl

205

Microsoft Word - 201310_Fuels_Industry_Newsletter_October_2013_v2.docx  

NLE Websites -- All DOE Office Websites (Extended Search)

selects Louisiana site for $12.5 billion, world-scale GTL facility" selects Louisiana site for $12.5 billion, world-scale GTL facility" By OGJ editors, Oil & Gas Journal, September 24, 2013 Royal Dutch Shell PLC, in a joint press statement with the state of Louisiana, reported the selection of Ascension Parish as a potential location for a $12.5 billion gas-to-liquids (GTL) facility. If built, the plant, to be located near Sorrento, La., would be one of the first commercial- scale plants of its kind in the US. The project also would create 740 direct jobs, according to an incentive agreement with the state. A decision on whether to begin construction of the facility is pending the completion of site evaluation and preliminary engineering studies, which would take several years, Shell said. "Selecting a site is an important step that allows us to conduct more detailed planning, technical

206

Shell forecasts serious gas reserve out by 1990  

SciTech Connect

Natural gas presently provides one-third of the nation's total energy requirements. This is nearly half of the energy needed by both industry and the residential market. By 1990, natural gas' contribution to total energy supply will shrink to one-eighth, with the resultant supply gap to be filled primarily by oil, much of which will be imported. Shell Oil Co. forecasts and explains this gas decline and investigates additional supply possibilities in a recently released paper entitled ''The National Energy Problem: Natural Gas.'' This article discusses several important conclusions from Shell's paper, which predicts that oil, gas, imports, coal, and oil gasification will fill the gap. New government regulations may spur exploration.

1973-11-01T23:59:59.000Z

207

A wind-shell interaction model for multipolar planetary nebulae  

E-Print Network (OSTI)

We explore the formation of multipolar structures in planetary and pre-planetary nebulae from the interaction of a fast post-AGB wind with a highly inhomogeneous and filamentary shell structure assumed to form during the final phase of the high density wind. The simulations were performed with a new hydrodynamics code integrated in the interactive framework of the astrophysical modeling package SHAPE. In contrast to conventional astrophysical hydrodynamics software, the new code does not require any programming intervention by the user for setting up or controlling the code. Visualization and analysis of the simulation data has been done in SHAPE without external software. The key conclusion from the simulations is that secondary lobes in planetary nebulae, such as Hubble 5 and K3-17, can be formed through the interaction of a fast low-density wind with a complex high density environment, such as a filamentary circumstellar shell. The more complicated alternative explanation of intermittent collimated outflow...

Steffen, W; Esquivel, A; Garcia-Segura, G; Garcia-Diaz, Ma T; Lopez, J A; Magnor, M

2013-01-01T23:59:59.000Z

208

Microscopic theory of multiple scattering for open shell nuclei  

SciTech Connect

The scattering of a distinguishable projectile from a nucleus is considered assuming that the underlying interaction Hamiltonian is a sum of two-body potentials. The effective interaction of the projectile with the nucleus in a truncated nuclear model space can be calculated as a linked cluster expansion. The shell-model interaction is required to be an energy-independent, hermitian potential; its expression is terms of the underlying two-body potential is given by folded diagrams. The terms in the expansion of the effective projectile-nucleus interaction must also contain folded diagrams but, unlike the shell-model potential, these are energy dependent in order to describe the singularities associated with the crossing of the scattering thresholds as the projectile energy is varied. Once the effective interaction is known, elastic and inelastic scattering may be evaluated numerically by solving a finite-dimensional coupled-channel equation. 24 refs., 12 figs.

Johnson, M.B.; Singham, M.K.

1986-01-01T23:59:59.000Z

209

Non-shell unstable particles in thermal field theory  

SciTech Connect

Using (nonrigorous) operator-algebraic and group-theoretic techniques the particle structure of interacting real-time thermal field theory is investigated. A description in terms of elementary unstable entities without a dispersion relation is arrived at. The asymptotic fields are found to be two-parameter generalized free fields. Contact with the Licht-field description of on-shell unstable particles is thereby achieved. Poincare-symmetry breaking and the rearrangement of spin to helicity at finite temperature are fully discussed and incorporated. A unique thermal Gell-Mann/Low formula is obtained. Feynman rules and renormalization conditions pertaining to non-shell thermal particles are given. Dissipation thereby naturally emerges. All relevant esoteric mathematics is explained. copyright 1988 Academic Press, Inc.

Landsman, N.P.

1988-08-15T23:59:59.000Z

210

Double Shell Tank (DST) Transfer Piping Subsystem Specification  

Science Conference Proceedings (OSTI)

This specification establishes the performance requirements and provides references to the requisite codes and standards to be applied during design of the Double-Shell Tank (DST) Transfer Piping Subsystem that supports the first phase of Waste Feed Delivery. This specification establishes the performance requirements and provides references to the requisite codes and standards to be applied during design of the Double-Shell Tank (DST) Transfer Piping Subsystem that supports the first phase of waste feed delivery. This subsystem transfers waste between transfer-associated structures (pits) and to the River Protection Project (RPP) Privatization Contractor Facility where it will be processed into an immobilized waste form. This specification is intended to be the basis for new projects/installations (W-521, etc.). This specification is not intended to retroactively affect previously established project design criteria without specific direction by the program.

GRAVES, C.E.

2000-03-22T23:59:59.000Z

211

Thin-shell wormholes with a generalized Chaplygin gas  

E-Print Network (OSTI)

In this article, spherically symmetric thin-shell wormholes supported by a generalized Chaplygin gas are constructed and their stability under perturbations preserving the symmetry is studied. Wormholes with charge and with a cosmological constant are analyzed and the results are compared with those obtained for the original Chaplygin gas, which was considered in a previous work. For some values of the parameters, one stable configuration is also present and a new extra unstable solution is found.

Ernesto F. Eiroa

2009-07-13T23:59:59.000Z

212

241-AN Double Shell Tanks (DST) Integrity Assessment Report  

Science Conference Proceedings (OSTI)

This report presents the results of the integrity assessment of the 241-AN double-shell tank farm facility located in the 200 East Area of the Hanford Site. The assessment included the design evaluation and integrity examinations of the tanks and concluded that the facility is adequately designed, is compatible with the waste, and is fit for use. Recommendations including subsequent examinations, are made to ensure the continued safe operation of the tanks.

JENSEN, C.E.

1999-09-21T23:59:59.000Z

213

241-AY Double Shell Tanks (DST) Integrity Assessment Report  

Science Conference Proceedings (OSTI)

This report presents the results of the integrity assessment of the 241-AY double-shell tank farm facility located in the 200 East Area of the Hanford Site. The assessment included the design evaluation and integrity examinations of the tanks and concluded that the facility is adequately designed, is compatible with the waste, and is fit for use. Recommendations including subsequent examinations. are made to ensure the continued safe operation of the tanks.

JENSEN, C.E.

1999-09-21T23:59:59.000Z

214

Double Shell Tank (DST) Process Waste Sampling Subsystem Definition Report  

Science Conference Proceedings (OSTI)

This report defines the Double-Shell Tank (DST) Process Waste Sampling Subsystem (PWSS). This subsystem definition report fully describes and identifies the system boundaries of the PWSS. This definition provides a basis for developing functional, performance, and test requirements (i.e., subsystem specification), as necessary, for the PWSS. The resultant PWSS specification will include the sampling requirements to support the transfer of waste from the DSTs to the Privatization Contractor during Phase 1 of Waste Feed Delivery.

RASMUSSEN, J.H.

2000-04-25T23:59:59.000Z

215

Single-shell tank interim stabilization project plan  

SciTech Connect

Solid and liquid radioactive waste continues to be stored in 149 single-shell tanks at the Hanford Site. To date, 119 tanks have had most of the pumpable liquid removed by interim stabilization. Thirty tanks remain to be stabilized. One of these tanks (C-106) will be stabilized by retrieval of the tank contents. The remaining 29 tanks will be interim stabilized by saltwell pumping. In the summer of 1997, the US Department of Energy (DOE) placed a moratorium on the startup of additional saltwell pumping systems because of funding constraints and proposed modifications to the Hanford Federal Facility Agreement and Consent Order (Tri-Party Agreement) milestones to the Washington State Department of Ecology (Ecology). In a letter dated February 10, 1998, Final Determination Pursuant to Hanford Federal Facility Agreement and Consent Order (Tri-Party Agreement) in the Matter of the Disapproval of the DOE`s Change Control Form M-41-97-01 (Fitzsimmons 1998), Ecology disapproved the DOE Change Control Form M-41-97-01. In response, Fluor Daniel Hanford, Inc. (FDH) directed Lockheed Martin Hanford Corporation (LNMC) to initiate development of a project plan in a letter dated February 25, 1998, Direction for Development of an Aggressive Single-Shell Tank (SST) Interim Stabilization Completion Project Plan in Support of Hanford Federal Facility Agreement and Consent Order (Tri-Party Agreement). In a letter dated March 2, 1998, Request for an Aggressive Single-Shell Tank (SST) Interim Stabilization Completion Project Plan, the DOE reaffirmed the need for an aggressive SST interim stabilization completion project plan to support a finalized Tri-Party Agreement Milestone M-41 recovery plan. This project plan establishes the management framework for conduct of the TWRS Single-Shell Tank Interim Stabilization completion program. Specifically, this plan defines the mission needs and requirements; technical objectives and approach; organizational structure, roles, responsibilities, and interfaces; and operational methods. The plan is based on realistic assumptions and addresses three separate funding scenarios.

Ross, W.E.

1998-03-27T23:59:59.000Z

216

Retrieval technology development for Hanford double-shell tanks  

SciTech Connect

This paper describes the combined analytical, computational, and experimental program developed for identifying operating strategies for mobilization and retrieval of radioactive waste stored in double-shell tanks at Hanford. Sludge mobilization, slurry uniformity, and slurry retrieval investigations will produce guidelines for mixer pump and retrieval pump operation based on the physical properties of the waste and the geometric properties of the system (number of operating pumps and pump design and placement).

Bamberger, J.A.; Wise, B.M.; Miller, W.C.

1992-05-01T23:59:59.000Z

217

Dielectronic recombination of Fe^{13+}: benchmarking the M-shell  

E-Print Network (OSTI)

We have carried-out a series of multi-configuration Breit-Pauli AUTOSTRUCTURE calculations for the dielectronic recombination of Fe^{13+}. We present a detailed comparison of the results with the high-energy resolution measurements reported recently from the Heidelberg Test Storage Ring by Schmidt et al. Many Rydberg series contribute significantly from this initial 3s^2 3p M-shell ion, resulting in a complex recombination `spectrum'. While there is much close agreement between theory and experiment, differences of typically 50% in the summed resonance strengths over 0.1-10 eV result in the experimentally based total Maxwellian recombination rate coefficient being a factor of 1.52-1.38 larger than theory over 10^4-10^5 K, which is a typical temperature range of peak abundance for Fe^{13+} in a photoionized plasma. Nevertheless, this theoretical recombination rate coefficient is an order of magnitude larger than that used by modellers to-date. This may help explain the discrepancy between the iron M-shell ionization balance predicted by photoionization modelling codes such as ION and CLOUDY and that deduced from the iron M-shell unresolved-transition-array absorption feature observed in the X-ray spectrum of many active galactic nuclei. Similar data are required for Fe^{8+} through Fe^{12+} to remove the question mark hanging over the atomic data though.

N. R. Badnell

2006-07-18T23:59:59.000Z

218

Thin shell morphology in the circumstellar medium of massive binaries  

E-Print Network (OSTI)

We investigate the morphology of the collision front between the stellar winds of binary components in two long-period binary systems, one consisting of a hydrogen rich Wolf-Rayet star (WNL) and an O-star and the other of a Luminous Blue Variable (LBV) and an O-star. Specifically, we follow the development and evolution of instabilities that form in such a shell, if it is sufficiently compressed, due to both the wind interaction and the orbital motion. We use MPI-AMRVAC to time-integrate the equations of hydrodynamics, combined with optically thin radiative cooling, on an adaptive mesh 3D grid. Using parameters for generic binary systems, we simulate the interaction between the winds of the two stars. The WNL+O star binary shows a typical example of an adiabatic wind collision. The resulting shell is thick and smooth, showing no instabilities. On the other hand, the shell created by the collision of the O star wind with the LBV wind, combined with the orbital motion of the binary components, is susceptible to...

van Marle, Allard Jan; Meliani, Zakaria

2010-01-01T23:59:59.000Z

219

Hanford double shell tank corrosion monitoring instrument trees  

Science Conference Proceedings (OSTI)

High-level nuclear wastes at the Hanford site are stored underground in carbon steel double-shell and single-shell tanks - (DSTs and SSTS). Westinghouse Hanford Company is considering installation of a prototype corrosion monitoring instrument tree in at least one DST in the summer of 1995. The instrument tree will have the ability to detect and discriminate between uniform corrosion, stress corrosion cracking (SCC), and pitting. Additional instrument trees will follow in later years. Proof-of-technology testing is currently underway for the use of commercially available electric field pattern (EFP) analysis and electrochemical noise (EN) corrosion monitoring equipment. Creative use and combinations of other existing technologies is also being considered. Successful demonstration of these technologies will be followed by the development of a Hanford specific instrument tree. The first instrument tree will incorporate one of these technologies. Subsequent trees may include both technologies, as well as a more standard assembly of corrosion coupons. Successful development of these trees will allow their application to single shell tanks and the transfer of technology to other U.S. Department of Energy (DOE) sites.

Nelson, J.L.

1995-03-01T23:59:59.000Z

220

Working and Net Available Shell Storage Capacity as of March 31, 2011  

Gasoline and Diesel Fuel Update (EIA)

Working and Net Available Shell Storage Capacity Working and Net Available Shell Storage Capacity Working and Net Available Shell Storage Capacity Archives With Data for March 2011 | Release Date: May 31, 2011 Working and Net Available Shell Storage Capacity is the U.S. Energy Information Administration's (EIA) report containing storage capacity data for crude oil, petroleum products, and selected biofuels. The report includes tables detailing working and net available shell storage capacity by type of facility, product, and Petroleum Administration for Defense District (PAD District). Net available shell storage capacity is broken down further to show the percent for exclusive use by facility operators and the percent leased to others. Crude oil storage capacity data are also provided for Cushing, Oklahoma, an important crude oil market center. Data

Note: This page contains sample records for the topic "royal dutch shell" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Retrieval of the Tenth Single-Shell Tank Complete at Hanford: Third  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Retrieval of the Tenth Single-Shell Tank Complete at Hanford: Third Retrieval of the Tenth Single-Shell Tank Complete at Hanford: Third Single-Shell Tank Emptied at Hanford's C Farm This Year Retrieval of the Tenth Single-Shell Tank Complete at Hanford: Third Single-Shell Tank Emptied at Hanford's C Farm This Year September 17, 2012 - 12:00pm Addthis Media Contacts Lori Gamache, ORP 509-372-9130 Rob Roxburgh, WRPS 509-376-5188 RICHLAND - Washington River Protection Solutions (WRPS) has advised the U.S. Department of Energy (DOE) that they have completed retrieval of radioactive and chemical waste from the third single-shell tank (SST) this year. WRPS is the tank operations contractor for the DOE Office of River Protection (ORP). An engineering evaluation in the field shows the waste volume in C-109 is below the regulatory requirement of 360 cubic feet of waste remaining in

222

Retrieval of the Tenth Single-Shell Tank Complete at Hanford: Third  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

the Tenth Single-Shell Tank Complete at Hanford: Third the Tenth Single-Shell Tank Complete at Hanford: Third Single-Shell Tank Emptied at Hanford's C Farm This Year Retrieval of the Tenth Single-Shell Tank Complete at Hanford: Third Single-Shell Tank Emptied at Hanford's C Farm This Year September 17, 2012 - 12:00pm Addthis Media Contacts Lori Gamache, ORP 509-372-9130 Rob Roxburgh, WRPS 509-376-5188 RICHLAND - Washington River Protection Solutions (WRPS) has advised the U.S. Department of Energy (DOE) that they have completed retrieval of radioactive and chemical waste from the third single-shell tank (SST) this year. WRPS is the tank operations contractor for the DOE Office of River Protection (ORP). An engineering evaluation in the field shows the waste volume in C-109 is below the regulatory requirement of 360 cubic feet of waste remaining in

223

Application to Export Electric Energy OE Docket No. EA-338-A Shell Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

8-A Shell 8-A Shell Energy North America (US), L.P.: Federal Register Notice, Volume 78, No. 45 - March 7, 2013 Application to Export Electric Energy OE Docket No. EA-338-A Shell Energy North America (US), L.P.: Federal Register Notice, Volume 78, No. 45 - March 7, 2013 Application from Shell Energy to export electric energy to Mexico. Federal Register Notice. EA-338-A Shell Energy-MX.pdf More Documents & Publications Application to Export Electric Energy OE Doc No. EA-339-A Shell Energy North America (US), L.P.: Federal Register Notice, Volume 78, No. 45 - March 7, 2013 Application to Export Electric Energy OE Docket No. EA-258-D Brookfield Energy Marketing Inc.: Federal Register Notice, Volume 78. No. 213 - Nov. 4, 2013 Application to Export Electric Energy OE Docket No. EA-336-A ConocoPhillips

224

High Temperature Capabililty and Innovative Cooling with a Spar and Shell Turbine Blade - Florida Turbine Technologies  

NLE Websites -- All DOE Office Websites (Extended Search)

Temperature Capability and Temperature Capability and Innovative Cooling with a Spar and Shell Turbine Blade-Florida Turbine Technologies Background Florida Turbine Technologies, Inc. (FTT) is currently developing advanced aerothermal technologies centered on spar and shell airfoil concepts meant to provide highly durable turbine components that require the lowest cooling flow possible. The spar-shell system represents a unique opportunity for the use of advanced, high-temperature materials

225

Radio emission from shell-type supernova remnants  

E-Print Network (OSTI)

The evolution of the radio emission of shell-type Supernova remnants (SNRs) is modeled within the framework of the simple and commonly used assumptions that the mechanism of diffusive shock acceleration (DSA) is responsible for generating radio emitting electrons and that the magnetic field is the typical interstellar field compressed at the shock. It is considered that electrons are injected into the mechanism in test-particle regime directly from the high energy tail of the downstream Maxwellian distribution function. The model can be applied to most of the observed SNRs. It is shown that the model successfully explains the many averaged observational properties of evolved shell-type SNRs. In particular, the radio surface brightness ($\\Sigma$) evolves with diameter as $\\sim D^{-(0.3 \\div 0.5)}$, while the bounding shock is strong (Mach number is ${\\mathcal M} \\geq10$), followed by steep decrease (steeper than $\\sim D^{-4.5}$) for ${\\cal M} environmental parameters strongly reduce the usefulness of $\\Sigma - D$ relations as a tool for determining the distances to SNRs. The model predicts no radio emission from SNRs in the late radiative stage of evolution and the existence of radio-quiet but relatively active SNRs is possible. Our model easily explains very large-diameter radio sources such as the Galactic Loops and the candidates for Hypernova radio remnants. The model predicts that most of the observed SNRs are located in a tenuous phase of the ISM. From the comparison of the model results with the statistics of evolved shell-type SNRs, we were able to estimate the fraction of electrons accelerated from the thermal pool in the range $(3\\div 11) \\times 10^{- 4}$.

Abdul Asvarov

2006-08-03T23:59:59.000Z

226

Double-shell inertial confinement fusion target fabrication  

SciTech Connect

First generation hemishells, from which spherical shells are constructed, were fabricated by micromachining coated mandrels and by molding. The remachining of coated mandrels are described in detail. Techniques were developed for coating the microsized mandrels with polymeric and metallic materials by methods including conformal coating, vapor deposition, plasma polymerization and thermoforming. Micropositioning equipment and bonding techniques have also been developed to assemble the hemishells about a fuel pellet maintaining a spherical concentricity of better than 2 ..mu..m and voids in the hemishell bonding line of a few hundred angstroms or less.

Hatcher, C.W.; Lorensen, L.E.; Weinstein, B.W.

1980-08-26T23:59:59.000Z

227

Spherical Thin-Shell Wormholes and Modified Chaplygin Gas  

E-Print Network (OSTI)

The purpose of this paper is to construct spherical thin-shell wormhole solutions through cut and paste technique and investigate the stability of these solutions in the vicinity of modified Chaplygin gas. The Darmois-Israel formalism is used to formulate the stresses of the surface concentrating the exotic matter. We explore the stability of the wormhole solutions by using the standard potential method. We conclude that there exist more stable as well as unstable solutions than the previous study with generalized Chaplygin gas \\cite{15}.

M. Sharif; M. Azam

2013-09-28T23:59:59.000Z

228

FLAMMABLE GAS DIFFUSION THROUGH SINGLE SHELL TANK (SST) DOMES  

DOE Green Energy (OSTI)

This report quantified potential hydrogen diffusion through Hanford Site Single-Shell tank (SST) domes if the SSTs were hypothetically sealed airtight. Results showed that diffusion would keep headspace flammable gas concentrations below the lower flammability limit in the 241-AX and 241-SX SST. The purpose of this document is to quantify the amount of hydrogen that could diffuse through the domes of the SSTs if they were hypothetically sealed airtight. Diffusion is assumed to be the only mechanism available to reduce flammable gas concentrations. The scope of this report is limited to the 149 SSTs.

MEACHAM, J.E.

2003-11-10T23:59:59.000Z

229

/sup 238/Pu surface contamination of MHW impact shell assembly  

DOE Green Energy (OSTI)

/sup 238/PuO/sub 2/ contamination of the grit blasted surface of the primary impact shell assembly (PISA) of the multi-hundred watt isotopic heat source was measured. The study determined the amount and distribution of the /sup 238/PuO/sub 2/ and characterization of its behavior during aging at 1350/sup 0/C. The results concluded that normal decontamination effectively removes the superficial /sup 238/PuO/sub 2/ but does not extract the /sup 238/PuO/sub 2/ which is deep within the grit blasted structure. Subsequent heating results in migration of microcurie amounts of plutonium out of the grit blasted structure.

Schaeffer, D.R.; Johnson, E.W.; Sheehan, W.E.; Fleming, D.L.; Egleston, E.E.

1976-11-22T23:59:59.000Z

230

Fusion hindrance and roles of shell effects in superheavy mass region  

E-Print Network (OSTI)

We present the first attempt of systematically investigating the effects of shell correction energy for a dynamical process, which includes fusion, fusion-fission and quasi-fission processes. In the superheavy mass region, for the fusion process, shell correction energy plays a very important role and enhances the fusion probability when the colliding partner has a strong shell structure. By analyzing the trajectory in three-dimensional coordinate space with the Langevin equation, we reveal the mechanism of the enhancement of the fusion probability caused by `cold fusion valleys'. The temperature dependence of shell correction energy is considered.

Y. Aritomo

2006-09-18T23:59:59.000Z

231

Long Electron-Hole Separation of ZnO-CdS Core-Shell Quantum Dots  

DOE Green Energy (OSTI)

The tunability of electronic and optical properties of semiconductor nanocrystal quantum dots (QDs) has been an important subject in nanotechnology. While control of the emission property of QDs in wavelength has been studied extensively, control of the emission lifetime of QDs has not been explored in depth. In this report, ZnO-CdS core-shell QDs were synthesized in a two-step process, in which we initially synthesized ZnO core particles, and then stepwise slow growth of CdS shells followed. The coating of a CdS shell on a ZnO core increased the exciton lifetime more than 100 times that of the core ZnO QD, and the lifetime was further extended as the thickness of shell increased. This long electron-hole recombination lifetime is due to a unique staggered band alignment between the ZnO core and CdS shell, so-called type II band alignment, where the carrier excitation holes and electrons are spatially separated at the core and shell, and the exciton lifetime becomes extremely sensitive to the thickness of the shell. Here, we demonstrated that the emission lifetime becomes controllable with the thickness of the shell in ZnO-CdS core-shell QDs. The longer excitonic lifetime of type II QDs could be beneficial in fluorescence-based sensors, medical imaging, solar cells photovoltaics, and lasers.

Xu, F.; Volkov, V.; Zhu, Y.; Bai, H.; Rea, A.; Valappil, N.V.; Su, W.; Gao, X.; Kuskovsky, I.L.; Matsui, H.

2009-10-19T23:59:59.000Z

232

Fifteenth international conference on X-ray and inner-shell processes  

Science Conference Proceedings (OSTI)

This document is composed of Abstracts from invited papers presented at X-90, the fifteenth annual international conference on x-ray and Inner-Shell Processes. (FSD)

Not Available

1990-01-01T23:59:59.000Z

233

Buckling of a cracked cylindrical shell reinforced with an elastic liner.  

E-Print Network (OSTI)

??Shell structures have been widely used in engineering applications such as pipelines, aerospace and marine structures, and cooling towers. Occurring suddenly and generally inadvertently due… (more)

Kim, Yoontae

2011-01-01T23:59:59.000Z

234

Iron/Iron Oxide Core/Shell Nanoparticles for MRI and Magnetic ...  

Science Conference Proceedings (OSTI)

Bulk Nanoceramics and Nanocomposites: Processed by Pulsed Electric Current ... Iron/Iron Oxide Core/Shell Nanoparticles for MRI and Magnetic Hyperthermia.

235

Design of shell and tube heat exchanger using specified pressure drop.  

E-Print Network (OSTI)

??The pressure drops used in heat exchange of shell and tube type, the situations are particular and put ahead of the design exercise. In such… (more)

Bilimoria, Vimalkumar B.

2010-01-01T23:59:59.000Z

236

Microsoft PowerPoint - S05-02_Rinker_Single Shell Tank Structural...  

NLE Websites -- All DOE Office Websites (Extended Search)

on Hanford Single Shell Waste Tanks EM Waste Processing Technical Exchange Waste Storage and Tank Inspection Mike Rinker Pacific Northwest National Laboratory November 17, 2010 1...

237

Fusion Hindrance and the Role of Shell Effects in the Superheavy Mass Region  

E-Print Network (OSTI)

We present the first attempt of the systematical investigation about the effects of shell correction energy for dynamical processes, which include fusion, fusion-fission and quasi-fission processes. In the superheavy mass region, for the fusion process, the shell correction energy plays a very important role and enhances the fusion probability, when the colliding partner has strong shell structure. By analyzing the trajectory in the three-dimensional coordinate space with a Langevin equation, we reveal the mechanism of the enhancement of the fusion probability caused by shell effects.

Y. Aritomo

2006-09-13T23:59:59.000Z

238

Tksh: A Tcl Library for KornShell  

E-Print Network (OSTI)

This paper describes Tksh, an implementation of the Tcl C library written on top of the library for the new KornShell (ksh93). Tksh emulates the behavior of Tcl by using the API that is provided for extending ksh93, which is similar to the Tcl library in that it allows access to variables, functions and other state of the interpreter. This implementation requires no modification to ksh93, and allows Tcl libraries such as Tk to run on top of ksh93 unchanged, making it possible to use shell scripts in place of Tcl scripts. ksh93 is well suited for use with Tk because it is backward compatible with sh, making it both easy to learn and easy to extend existing scripts to provide a graphical user interface. Tksh is not yet another port of Tk to another language -- it allows Tcl scripts to run without modification using the ksh93 internals. This makes it possible to combine Tcl and ksh93, which is useful for writing ksh93 scripts that use components that have been implemented in Tcl (such as ...

Jeffrey Korn

1996-01-01T23:59:59.000Z

239

Double Shell Tank (DST) Monitor and Control Subsystem Specification  

Science Conference Proceedings (OSTI)

This specification establishes the performance requirements and provides references to the requisite codes and standards to be applied during design of the Double-Shell Tank (DST) Monitor and Control Subsystem that supports the first phase of Waste Feed Delivery. This subsystem specification establishes the interface and performance requirements and provides references to the requisite codes and standards to be applied during the design of the Double-Shell Tank (DST) Monitor and Control Subsystem. The DST Monitor and Control Subsystem consists of the new and existing equipment that will be used to provide tank farm operators with integrated local monitoring and control of the DST systems to support Waste Feed Delivery (WFD). New equipment will provide automatic control and safety interlocks where required and provide operators with visibility into the status of DST subsystem operations (e.g., DST mixer pump operation and DST waste transfers) and the ability to manually control specified DST functions as necessary. This specification is intended to be the basis for new project/installations (W-521, etc.). This specification is not intended to retroactively affect previously established project design criteria without specific direction by the program.

BAFUS, R.R.

2000-04-27T23:59:59.000Z

240

Double Shell Tank (DST) Transfer Valving Subsystem Specification  

Science Conference Proceedings (OSTI)

This specification establishes the performance requirements and provides references to the requisite codes and standards to be applied during design of the Double-Shell Tank (DST) Transfer Valving Subsystem that supports the first phase of Waste Feed Delivery. This specification establishes the performance requirements and provides references to the requisite codes and standards to be applied during design of the Double-Shell Tank (DST) Transfer Valving Subsystem that supports the first phase of Waste Feed Delivery (WFD). The DST Transfer Valving Subsystem routes waste and other media (e.g., diluent, flush water, filtered raw water) among DSTs and from the low-activity waste (LAW) and high-level waste (HLW) feed staging tanks to the River Protection Project (RPP) Privatization Contractor facility, where it will be processed into an immobilized waste form. This specification is intended to be the basis for new projects/installations (W-521, etc.). This specification is not intended to retroactively affect previously established project design criteria without specific direction by the program.

GRAVES, C.E.

2000-03-22T23:59:59.000Z

Note: This page contains sample records for the topic "royal dutch shell" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Particle Acceleration and Gamma-Ray Production in Shell Remnants  

E-Print Network (OSTI)

A number of nearby Northern Hemisphere shell-type Supernova Remnants (SNRs) has been observed in TeV gamma rays, but none of them could be detected so far. This failure calls for a critical reevaluation of the theoretical arguments for gamma-ray emission of SNRs. The present paper discusses diffusive shock acceleration in shell-type SNRs in full kinetic theory. Emphasis is also given to the possible problems for VHE gamma-ray production due to the environmental conditions a SN progenitor finds itself in. Observational upper limits are compared with theoretical predictions for the gamma-ray flux. Empirical arguments from the observation of X-ray power law continua for electron-induced Inverse Compton gamma-ray emission at TeV energies are discussed in their relation to the nucleonic Pi-zero decay emission from the same objects. Finally, a point is made for the simplest case of SNe Ia, expected to explode in a uniform circumstellar medium. Here in particular the very recently detected Southern Hemisphere remnant of SN 1006 is compared with Tycho's SNR. On the basis of the assumed parameters for the two remnants SN 1006 is tentatively identified with a remnant whose TeV gamma-ray emission is dominated by Inverse Compton radiation. Tycho might be dominantly a Pi-zero decay gamma-ray source.

H. J. Volk

1997-11-18T23:59:59.000Z

242

Hazard assessments of double-shell flammable gas tanks  

DOE Green Energy (OSTI)

This report is the fourth in a series of hazard assessments performed on the double-shell flammable gas watch list tanks. This report focuses on hazards associated with the double-shell watch list tanks (101-AW, 103-AN, 104-AN, and 105-AN). While a similar assessment has already been performed for tank 103-SY, it is also included here to incorporate a more representative slurry gas mixture and provide a consistent basis for comparing results for all the flammable gas tanks. This report is intended to provide an in-depth assessment by considering the details of the gas release event and slurry gas mixing as the gas is released from the waste. The consequences of postulated gas ignition are evaluated using a plume burn model and updated ignition frequency predictions. Tank pressurization which results from a gas burn, along with the structural response, is also considered. The report is intended to support the safety basis for work activities in flammable gas tanks by showing margins to safety limits that are available in the design and procedures.

Fox, G.L.; Stepnewski, D.D.

1994-09-28T23:59:59.000Z

243

A comparison of high-order time integrators for thermal convection in rotating spherical shells  

Science Conference Proceedings (OSTI)

A numerical study of several time integration methods for solving the three-dimensional Boussinesq thermal convection equations in rotating spherical shells is presented. Implicit and semi-implicit time integration techniques based on backward differentiation ... Keywords: Backward differentiation-extrapolation formulae, Krylov methods, Spectral methods, Spherical shells, Thermal convection, Time integration methods

F. Garcia; M. Net; B. García-Archilla; J. Sánchez

2010-10-01T23:59:59.000Z

244

Benchmark calculation of no-core Monte Carlo shell model in light nuclei  

E-Print Network (OSTI)

The Monte Carlo shell model is firstly applied to the calculation of the no-core shell model in light nuclei. The results are compared with those of the full configuration interaction. The agreements between them are within a few % at most.

T. Abe; P. Maris; T. Otsuka; N. Shimizu; Y. Utsuno; J. P. Vary

2011-07-09T23:59:59.000Z

245

HANFORD DOUBLE SHELL TANK (DST) THERMAL & SEISMIC PROJECT SUMMARY OF COMBINED THERMAL & OPERATING LOADS  

Science Conference Proceedings (OSTI)

This report summarizes the results of the Double-Shell Tank Thermal and Operating Loads Analysis (TOLA) combined with the Seismic Analysis. This combined analysis provides a thorough, defensible, and documented analysis that will become a part of the overall analysis of record for the Hanford double-shell tanks (DSTs).

MACKEY, T.C.

2006-03-17T23:59:59.000Z

246

Benchmark calculation of no-core Monte Carlo shell model in light nuclei  

E-Print Network (OSTI)

The Monte Carlo shell model is firstly applied to the calculation of the no-core shell model in light nuclei. The results are compared with those of the full configuration interaction. The agreements between them are within a few % at most.

Abe, T; Otsuka, T; Shimizu, N; Utsuno, Y; Vary, J P; 10.1063/1.3584062

2011-01-01T23:59:59.000Z

247

Benchmark calculation of no-core Monte Carlo shell model in light nuclei  

SciTech Connect

The Monte Carlo shell model is firstly applied to the calculation of the no-core shell model in light nuclei. The results are compared with those of the full configuration interaction. The agreements between them are within a few % at most.

Abe, T.; Shimizu, N. [Department of Physics, the University of Tokyo, Hongo, Tokyo 113-0033 (Japan); Maris, P.; Vary, J. P. [Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011 (United States); Otsuka, T. [Department of Physics, University of Tokyo, Hongo, Tokyo 113-0033 (Japan); CNS, University of Tokyo, Hongo, Tokyo 113-0033 (Japan); NSCL, Michigan State University, East Lansing, Michigan 48824 (United States); Utsuno, Y. [ASRC, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195 (Japan)

2011-05-06T23:59:59.000Z

248

Performance modelling and simulated availability of shell gasification and carbon recovery unit of urea plant  

Science Conference Proceedings (OSTI)

The present paper deals with the performance modelling and simulated availability of shell gasification and carbon recovery unit of urea plant. The fertilizer plant comprises of various units viz. shell gasification and carbon recovery, desulphurisation, ... Keywords: modelling, performance evaluation and maintenance strategies, steady state availability

Sunand Kumar; Sanjeev Kumar; P. C. Tewari

2007-08-01T23:59:59.000Z

249

Core-Protected Platinum Monolayer Shell High-Stability Electrocatalysts for Fuel-Cell Cathodes  

Science Conference Proceedings (OSTI)

Platinum monolayers can act as shells for palladium nanoparticles to lead to electrocatalysts with high activities and an ultralow platinum content, but high platinum utilization. The stability derives from the core protecting the shell from dissolution. In fuel-cell tests, no loss of platinum was observed in 200,000 potential cycles, whereas loss of palladium was significant.

K Sasaki; H Naohara; Y Cai; Y Choi; P Liu; M Vukmirovic; J Wang; R Adzic

2011-12-31T23:59:59.000Z

250

An exact conserving algorithm for nonlinear dynamics with rotational DOFs and general hyperelasticity. Part 2: shells  

Science Conference Proceedings (OSTI)

Following the approach developed for rods in Part 1 of this paper (Pimenta et al. in Comput. Mech. 42:715---732, 2008), this work presents a fully conserving algorithm for the integration of the equations of motion in nonlinear shell dynamics. We begin ... Keywords: Energy conservation, Momentum conservation, Nonlinear dynamics, Shells, Time integration

E. M. Campello; P. M. Pimenta; P. Wriggers

2011-08-01T23:59:59.000Z

251

AT Cnc: A SECOND DWARF NOVA WITH A CLASSICAL NOVA SHELL  

SciTech Connect

We are systematically surveying all known and suspected Z Cam-type dwarf novae for classical nova shells. This survey is motivated by the discovery of the largest known classical nova shell, which surrounds the archetypal dwarf nova Z Camelopardalis. The Z Cam shell demonstrates that at least some dwarf novae must have undergone classical nova eruptions in the past, and that at least some classical novae become dwarf novae long after their nova thermonuclear outbursts, in accord with the hibernation scenario of cataclysmic binaries. Here we report the detection of a fragmented 'shell', 3 arcmin in diameter, surrounding the dwarf nova AT Cancri. This second discovery demonstrates that nova shells surrounding Z Cam-type dwarf novae cannot be very rare. The shell geometry is suggestive of bipolar, conical ejection seen nearly pole-on. A spectrum of the brightest AT Cnc shell knot is similar to that of the ejecta of the classical nova GK Per, and of Z Cam, dominated by [N II] emission. Galaxy Evolution Explorer FUV imagery reveals a similar-sized, FUV-emitting shell. We determine a distance of 460 pc to AT Cnc, and an upper limit to its ejecta mass of {approx}5 Multiplication-Sign 10{sup -5} M {sub Sun }, typical of classical novae.

Shara, Michael M.; Mizusawa, Trisha; Zurek, David [Department of Astrophysics, American Museum of Natural History, Central Park West at 79th Street, New York, NY 10024-5192 (United States); Wehinger, Peter [Steward Observatory, the University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721 (United States); Martin, Christopher D.; Neill, James D.; Forster, Karl [Department of Physics, Math and Astronomy, California Institute of Technology, 1200 East California Boulevard, Mail Code 405-47, Pasadena, CA 91125 (United States); Seibert, Mark [Observatories of the Carnegie Institution of Washington, 813 Santa Barbara Street, Pasadena, CA 91101 (United States)

2012-10-20T23:59:59.000Z

252

Aqueous synthesis and characterization of CdSe/ZnO core-shell nanoparticles  

Science Conference Proceedings (OSTI)

Core-shell nanomaterials based on CdSe as the core and ZnO as the shell were prepared using an aqueous route involving the use of Cd salt and NaBH4 in reaction with Se to generate CdSe in the presence of thioglycerol (TG) as a stabilizer. ...

B. P. Rakgalakane; M. J. Moloto

2011-01-01T23:59:59.000Z

253

Simple synthesis and growth mechanism of core/shell cdse/SiOx nanowires  

Science Conference Proceedings (OSTI)

Core-shell-structured CdSe/SiOx nanowires were synthesized on an equilateral triangle Si (111) substrate through a simple one-step thermal evaporation process. SEM, TEM, and XRD investigations confirmed the core-shell structure; that is, the ...

Guozhang Dai; Shengyi Yang; Min Yan; Qiang Wan; Qinglin Zhang; Anlian Pan; Bingsuo Zou

2010-01-01T23:59:59.000Z

254

Ultrafine PMMA(QDs)/PVDF core-shell fibers for nanophotonic applications  

Science Conference Proceedings (OSTI)

Ultrafine fibers of poly(methyl methacrylate) (PMMA)/poly(vinylidene fluoride) (PVDF) with unique core-shell structure were fabricated via facile electrospinning method, and were adopted as waveguide materials. PMMA, into which CdSe/ZnS quantum dots ... Keywords: CdSe/ZnS, Core-shell fiber, Electrospinning, Poly(methyl methacrylate) (PMMA), Poly(vinylidene fluoride) (PVDF), Quantum dots

Shi-Li Quan; Hyun-Sik Lee; El-Hang Lee; Kyoung-Duck Park; Seung Gol Lee; In-Joo Chin

2010-05-01T23:59:59.000Z

255

Evolution of the N = 28 shell closure: a test bench for nuclear forces  

E-Print Network (OSTI)

Evolution of the N = 28 shell closure: a test bench for nuclear forces O. Sorlin1 and M.-G. Porquet;The N = 28 shell closure: a test bench for nuclear forces 2 reach a value of 4.8 MeV. This effect has and 90). More generally, questions related to the evolution of nuclear forces towards the drip

Paris-Sud XI, Université de

256

GRB 021004: a Massive Progenitor Star Surrounded by Shells  

E-Print Network (OSTI)

We present spectra of the optical transient of GRB021004 obtained with the Hobby-Eberly telescope starting 15.48, 20.31 hours, and 4.84 days after the burst and a spectrum obtained with the H. J. Smith 2.7 m Telescope starting 14.31 hours after the burst. GRB021004 is the first afterglow whose spectrum is dominated by absorption lines from high ionization species with multiple velocity components separated by up to 3000 km/s. We argue that these lines are likely to come from shells around a massive progenitor star. The high velocities and high ionizations arise from a combination of acceleration and flash-ionization by the burst photons and the wind velocity and steady ionization by the progenitor. We also analyze the broad-band spectrum and the light curve. We distinguish six components along the line of sight: (1) The z~2.293 absorption lines arise from the wind of a massive star. For a mass loss rate of ~6 x 10^{-5} solar masses per year, this component also provides the external medium to create the afterglow light. (2) A second shell produces absorption lines with a relative velocity of 560 km/s, and this is associated with the shell created by the fast massive star wind blowing a bubble in the preceding slow wind at a radial distance of order 10 pc. (3) More distant clouds within the host galaxy lie between 30-2500 pc, where they have been ionized by the burst. (4-6) The massive star wind has clumps with radii and over-densities of 0.022, 0.063, and 0.12 parsecs and 50%, 10%, and 10% respectively. The immediate progenitor of the burster could either be a WC-type Wolf-Rayet star or a highly evolved star whose original mass was just too small for it to become a WN-type Wolf-Rayet star.

Bradley E. Schaefer; C. L. Gerardy; P. Hoflich; A. Panaitescu; R. Quimby; J. Mader; G. J. Hill; P. Kumar; J. C. Wheeler; M. Eracleous; S. Sigurdsson; P. Meszaros; B. Zhang; L. Wang; F. Hessman; V. Petrosian

2002-11-09T23:59:59.000Z

257

Generation of Core/shell Nanoparticles with Laser Ablation  

E-Print Network (OSTI)

Two types of core/shell nanoparticles (CS-NPs) generation based on laser ablation are developed in this study, namely, double pulse laser ablation and laser ablation in colloidal solutions. In addition to the study of the generation mechanism of CS-NPs in each scheme, the optical properties of designed CS-NPs are determined with UV-VIS-NIR spectroscopy and EM field simulation. In the first scheme, which is double pulse laser ablation, two laser beams are fired in a sequence on two adjacent targets with different material. We have successfully demonstrated the generation of Sn/Glass, Zn/Glass, Zn/Si, Ge/Si, and Cu/Zn CS-NPs. Key factors affecting the generation of CS-NPs are (1) surface tensions of the constructing materials affecting the associated Gibbs free energy of CS-NPs, (2) physical properties of selected background gases (i.e., He and Ar), (3) delay time between two laser pulses, and (4) the amount of laser energy. The second scheme examined for the generation of CS-NPs is through laser ablation of solid targets in colloidal solutions. Compared to the double pulse laser ablation, this second approach provides better control of the size and shape of the resulting CS-NPs. Two colloidal solutions, namely, Au and SiO2 colloidal solution are applied in the second scheme. Key factors affecting the formation of CS-NPs with the second scheme and are (a) the adhesion energy between the shell and the core material, (b) the diameter of the core and (c) the laser ablation time and the laser energy. Red shift of absorption peaks are measured in both SiO2/Au and SiO2/Ag colloids compared with pure nanoparticles (NPs). The amount of red-shift is very sensitive to the shell thickness of the CS-NPs. The same red shift is reproduced with the corresponding full wave analysis. The observed red shift can be attributed to the additional surface plasmon resonance at the interface of metal/dielectric of the CS-NPs compared with pure nanoparticles. Through adjusting the material and size combination, the absorption peak of the CS-NPs can be tuned in a limit range around the intrinsic absorption peak of the metal of the CS-NPs. The freedom of adjusting the absorption peak makes CS-NPs is favorable in bio and optical applications.

Jo, Young Kyong

2012-08-01T23:59:59.000Z

258

RAYLEIGH-TAYLOR INSTABILITIES OF A COLLAPSING CYLINDRICAL SHELL IN A MAGNETIC FIELD  

SciTech Connect

The instability of a radially accelerated cylindrical shell in a magnetic field has been investigated. It was assumed thai the shell was of infinitesimal thickness. For perturbations which do not bend the lines of the magnetic field, the growth rate was found to be w= (gk)/sup 1/2/, where g is the acceleration of the shell and k is the wavenumber. This growth rate is independent of the shell thickness. Perturbations which do bend the lines of the field were also found to be unstable. From a supplementary calculation, it was concluded that these instabilities were effective only for wavelengths greater than 8 pi a where 2a is the shell thickness. (auth)

Harris, E.G.

1962-09-01T23:59:59.000Z

259

Shell-based gasification-combined-cycle power plant evaluations. Final report  

SciTech Connect

This report presents the results of a detailed engineering and economic evaluation of shell-based integrated gasification - combined-cycle (IGCC) power plants. Two complete nominal 1000 MW capacity Shell-based grass roots IGCC plant designs and cost estimates were prepared. The following conclusions were made: Shell-based IGCC plants firing Illinois coal and employing current technology gas turbines (2000/sup 0/F firing temperature) have the potential to be cost competitive with conventional coal-fired steam plants with FGD. Shell-based IGCC plants firing Texas lignite have the potential to generate power at costs that are competitive with those based on firing high rank coal. Shell-based IGCC plants firing Illinois No. 6 coal have equivalent performance and costs similar to Texaco-based IGCC systems.

Hartman, J.J.

1983-06-01T23:59:59.000Z

260

FABRICATION OF A NEW TYPE OF DOUBLE SHELL TARGET HAVING A PVA INNER LAYER  

SciTech Connect

OAK-B135 The General Atomics Target Fabrication team was tasked in FY03, under its ICF Target Support contract, to make a new type of double-shell target. its specifications called for the outer shell to have an inner lining of PVA (poly(vinyl alcohol)) that would keep the xenon gas fill from occupying the target wall. The inner shell consisted of a glass shell coated with 2000 {angstrom} of silver and filled with 9 atm of deuterium. Furthermore, the delivery deadline was less than seven weeks away. This paper describes the fielding of this double-shell target, made possible through the combined efforts of Lawrence Livermore National Laboratory and General Atomics target fabrication specialists.

STEINMAN,D.A; WALLACE,R; GRANT,S.E; HOPPE,M.L; SMITH,JR.J.N

2003-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "royal dutch shell" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Using shape to control photoluminescence from CdSe/CdS core/shell nanorods.  

Science Conference Proceedings (OSTI)

CdSe/CdS core/shell nanorods can exhibit high photoluminescence quantum yields, but it is not yet clear what processes determine the yields and how they can be controlled. Moreover, the effective band alignment between the core and the shell affects quantum yield, but its nature is still under debate. We systematically studied quantum yields when the shell is excited as a function of both core size and shell volume. Using time-resolved photoluminescence decay measurements and transient-absorption spectroscopy, we found that quantum yields are determined by a balance between radiative and nonradiative recombination rates, and not by single-carrier trapping. The radiative recombination rate decreases as the nanorod volume increases, independent of the core size. The results indicate that high quantum yields can be obtained only by limiting the size of the shell and point to an effective quasi-type-II band alignment for all of the nanorods in this study.

She, C.; Demortiere, A.; Shevchenko, E. V.; Pelton, M. (Center for Nanoscale Materials)

2011-06-16T23:59:59.000Z

262

EQUILIBRIUM P-V-T RELATIONS FOR EXPANDING LIQUID-VAPOR SYSTEMS IN A CONTAINMENT SHELL  

SciTech Connect

From a time-independent standpoint, formulas are developed for determining a containment shell for a reactor plant should an unforeseen malfunction, where a compressed liquid, liquid-vapor, or vapor system is liberated and expands, occur. From the thermal equilibrium states, the pressure build-up inside a containment shell of known free volume is obtained, or for a specified containment shell pressure the required free volume is evolved. For the pressure build-up inside a containment shell due to ancident on a time- dependent basis, formulas are evolved from an open-system aspect. A table and graphs fur various initial states expanding into a containment shell have been prepared, where timeis not considered. Examples illustrating the usage of the developed time-independent equations are given. (auth)

Heap, J.C.

1958-11-01T23:59:59.000Z

263

Valence-shell photoionization of chlorine-like Ar$^{+}$ ions  

E-Print Network (OSTI)

Absolute cross-section measurements for valence-shell photoionization of Ar$^{+}$ ions are reported for photon energies ranging from 27.4 eV to 60.0 eV. The data, taken by merging beams of ions and synchrotron radiation at a photon energy resolution of 10 meV, indicate that the primary ion beam was a statistically weighted mixture of the $^2P^o_{3/2}$ ground state and the $^2P^o_{1/2}$ metastable state of Ar$^{+}$. Photoionization of this C$\\ell$-like ion is characterized by multiple Rydberg series of autoionizing resonances superimposed on a direct photoionization continuum. Observed resonance lineshapes indicate interference between indirect and direct photoionization channels. Resonance features are spectroscopically assigned and their energies and quantum defects are tabulated. The measurements are satisfactorily reproduced by theoretical calculations based on an intermediate coupling semi-relativistic Breit-Pauli approximation.

Covington, A M; Covington, I R; Hinojosa, G; Shirley, C A; Álvarez, I; Cisneros, C; Dominguez-Lopez, I; Sant'Anna, M M; Schlachter, A S; Ballance, C P; McLaughlin, B M

2012-01-01T23:59:59.000Z

264

Valence-shell photoionization of chlorinelike Ar{sup +} ions  

SciTech Connect

Absolute cross-section measurements for valence-shell photoionization of Ar{sup +} ions are reported for photon energies ranging from 27.4 to 60.0 eV. The data, taken by merging beams of ions and synchrotron radiation at a photon energy resolution of 10 meV, indicate that the primary ion beam was a statistically weighted mixture of the {sup 2}P{sub 3/2}{sup o} ground state and the {sup 2}P{sub 1/2}{sup o} metastable state of Ar{sup +}. Photoionization of this Cl-like ion is characterized by multiple Rydberg series of autoionizing resonances superimposed on a direct photoionization continuum. Observed resonance line shapes indicate interference between indirect and direct photoionization channels. Resonance features are spectroscopically assigned and their energies and quantum defects are tabulated. The measurements are satisfactorily reproduced by theoretical calculations based on an intermediate coupling semirelativistic Breit-Pauli approximation.

Covington, A. M.; Aguilar, A.; Covington, I. R.; Hinojosa, G.; Shirley, C. A.; Phaneuf, R. A.; Alvarez, I.; Cisneros, C.; Dominguez-Lopez, I.; Sant'Anna, M. M.; Schlachter, A. S.; Ballance, C. P.; McLaughlin, B. M. [Department of Physics, MS 220, University of Nevada, Reno, Nevada 89557-0058 (United States); Instituto de Ciencias Fisicas, Universidad Nacional Autonoma de Mexico, Apartado Postal 6-96, Cuernavaca 62131, Morelos (Mexico); Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720 (United States); Department of Physics, Auburn University, Auburn, Alabama 36840 (United States); Institute for Theoretical Atomic and Molecular Physics, Harvard Smithsonian Center for Astrophysics, 60 Garden Street, MS-14, Cambridge, Massachusetts 02138 (United States)

2011-07-15T23:59:59.000Z

265

Tank characterization report for single-shell Tank B-201  

Science Conference Proceedings (OSTI)

The purpose of this report is to characterize the waste in single shell Tank B-201. Characterization includes the determination of the physical, chemical (e.g., concentrations of elements and organic species), and radiological properties of the waste. These determinations are made using analytical results from B-201 core samples as well as historical information about the tank. The main objective is to determine average waste properties: but in some cases, concentrations of analytes as a function of depth were also determined. This report also consolidates the available historical information regarding Tank B-201, arranges the analytical information from the recent core sampling in a useful format, and provides an interpretation of the data within the context of what is known about the tank.

Heasler, P.G.; Remund, K.M.; Tingey, J.M.; Baird, D.B.; Ryan, F.M.

1994-09-01T23:59:59.000Z

266

Carbon-Supported IrNi Core-Shell Nanoparticles: Synthesis Characterization and Catalytic Activity  

Science Conference Proceedings (OSTI)

We synthesized carbon-supported IrNi core-shell nanoparticles by chemical reduction and subsequent thermal annealing in H{sub 2}, and verified the formation of Ir shells on IrNi solid solution alloy cores by various experimental methods. The EXAFS analysis is consistent with the model wherein the IrNi nanoparticles are composed of two-layer Ir shells and IrNi alloy cores. In situ XAS revealed that the Ir shells completely protect Ni atoms in the cores from oxidation or dissolution in an acid electrolyte under elevated potentials. The formation of Ir shell during annealing due to thermal segregation is monitored by time-resolved synchrotron XRD measurements, coupled with Rietveld refinement analyses. The H{sub 2} oxidation activity of the IrNi nanoparticles was found to be higher than that of a commercial Pt/C catalyst. This is predominantly due to Ni-core-induced Ir shell contraction that makes the surface less reactive for IrOH formation, and the resulting more metallic Ir surface becomes more active for H{sub 2} oxidation. This new class of core-shell nanoparticles appears promising for application as hydrogen anode fuel cell electrocatalysts.

K Sasaki; K Kuttiyiel; L Barrio; D Su; A Frenkel; N Marinkovic; D Mahajan; R Adzic

2011-12-31T23:59:59.000Z

267

Magnetite and magnetite/silver core/shell nanoparticles with diluted magnet-like behavior  

SciTech Connect

In the present work is reported the use of the biopolymer chitosan as template for the preparation of magnetite and magnetite/silver core/shell nanoparticles systems, following a two step procedure of magnetite nanoparticles in situ precipitation and subsequent silver ions reduction. The crystalline and morphological characteristics of both magnetite and magnetite/silver core/shell nanoparticles systems were analyzed by high resolution transmission electron microscopy (HRTEM) and nanobeam diffraction patterns (NBD). The results of these studies corroborate the core/shell morphology and the crystalline structure of the magnetite core and the silver shell. Moreover, magnetization temperature dependent, M(T), measurements show an unusual diluted magnetic behavior attributed to the dilution of the magnetic ordering in the magnetite and magnetite/silver core/shell nanoparticles systems. - Graphical abstract: Biopolymer chitosan was used as stabilization media to synthesize both magnetite and magnetite/silver core/shell nanoparticles. Results of HRTEM and NBD patterns confirm core/shell morphology of the obtained nanoparticles. It was found that the composites show diluted magnet-like behavior.

Garza-Navarro, Marco [Facultad de Ingenieria Mecanica y Electrica, Universidad Autonoma de Nuevo Leon, Av. Universidad s/n, Cd. Universitaria, San Nicolas de los Garza, Nuevo Leon 66450 (Mexico); Torres-Castro, Alejandro, E-mail: alejandro.torrescs@uanl.edu.m [Facultad de Ingenieria Mecanica y Electrica, Universidad Autonoma de Nuevo Leon, Av. Universidad s/n, Cd. Universitaria, San Nicolas de los Garza, Nuevo Leon 66450 (Mexico); Centro de Innovacion, Investigacion y Desarrollo en Ingenieria y Tecnologia, Universidad Autonoma de Nuevo Leon, Apodaca, Nuevo Leon 66600 (Mexico); Gonzalez, Virgilio; Ortiz, Ubaldo [Facultad de Ingenieria Mecanica y Electrica, Universidad Autonoma de Nuevo Leon, Av. Universidad s/n, Cd. Universitaria, San Nicolas de los Garza, Nuevo Leon 66450 (Mexico); Centro de Innovacion, Investigacion y Desarrollo en Ingenieria y Tecnologia, Universidad Autonoma de Nuevo Leon, Apodaca, Nuevo Leon 66600 (Mexico); De la Rosa, Elder [Centro de Investigaciones en Optica, A.P. 1-948, Leon Gto. 37160 (Mexico)

2010-01-15T23:59:59.000Z

268

DETECTING THE RAPIDLY EXPANDING OUTER SHELL OF THE CRAB NEBULA: WHERE TO LOOK  

SciTech Connect

We present a range of steady-state photoionization simulations, corresponding to different assumed shell geometries and compositions, of the unseen postulated rapidly expanding outer shell to the Crab Nebula. The properties of the shell are constrained by the mass that must lie within it, and by limits to the intensities of hydrogen recombination lines. In all cases the photoionization models predict very strong emissions from high ionization lines that will not be emitted by the Crab's filaments, alleviating problems with detecting these lines in the presence of light scattered from brighter parts of the Crab. The near-NIR [Ne VI] {lambda}7.652 {mu}m line is a particularly good case; it should be dramatically brighter than the optical lines commonly used in searches. The C IV {lambda}1549 doublet is predicted to be the strongest absorption line from the shell, which is in agreement with Hubble Space Telescope observations. We show that the cooling timescale for the outer shell is much longer than the age of the Crab, due to the low density. This means that the temperature of the shell will actually ''remember'' its initial conditions. However, the recombination time is much shorter than the age of the Crab, so the predicted level of ionization should approximate the real ionization. In any case, it is clear that IR observations present the best opportunity to detect the outer shell and so guide future models that will constrain early events in the original explosion.

Wang Xiang; Ferland, G. J. [Department of Physics and Astronomy, University of Kentucky, Lexington, KY 40506 (United States); Baldwin, J. A.; Loh, E. D.; Richardson, C. T., E-mail: xiang.wang@uky.edu [Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824-2320 (United States)

2013-09-10T23:59:59.000Z

269

,"U.S. Total Shell Storage Capacity at Operable Refineries"  

U.S. Energy Information Administration (EIA) Indexed Site

Shell Storage Capacity at Operable Refineries" Shell Storage Capacity at Operable Refineries" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Total Shell Storage Capacity at Operable Refineries",28,"Annual",2013,"6/30/1982" ,"Release Date:","6/21/2013" ,"Next Release Date:","6/20/2014" ,"Excel File Name:","pet_pnp_capshell_dcu_nus_a.xls" ,"Available from Web Page:","http://www.eia.gov/dnav/pet/pet_pnp_capshell_dcu_nus_a.htm" ,"Source:","Energy Information Administration" ,"For Help, Contact:","infoctr@eia.gov"

270

Extrapolation method in the Monte Carlo Shell Model and its applications  

SciTech Connect

We demonstrate how the energy-variance extrapolation method works using the sequence of the approximated wave functions obtained by the Monte Carlo Shell Model (MCSM), taking {sup 56}Ni with pf-shell as an example. The extrapolation method is shown to work well even in the case that the MCSM shows slow convergence, such as {sup 72}Ge with f5pg9-shell. The structure of {sup 72}Se is also studied including the discussion of the shape-coexistence phenomenon.

Shimizu, Noritaka; Abe, Takashi [Department of Physics, University of Tokyo, Hongo, Tokyo 113-0033 (Japan); Utsuno, Yutaka [Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195 (Japan); Mizusaki, Takahiro [Institute of Natural Sciences, Senshu University, Tokyo, 101-8425 (Japan); Otsuka, Takaharu [Department of Physics, University of Tokyo, Hongo, Tokyo 113-0033 (Japan); Center for Nuclear Study, University of Tokyo, Hongo, Tokyo 113-0033 (Japan); National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan (United States); Honma, Michio [Center for Mathematical Sciences, Aizu University, Aizu-Wakamatsu, Fukushima 965-8580 (Japan)

2011-05-06T23:59:59.000Z

271

HANFORD DOUBLE SHELL TANK (DST) THERMAL & SEISMIC PROJECT BUCKLING EVALUATION METHODS & RESULTS FOR THE PRIMARY TANKS  

SciTech Connect

This report documents a detailed buckling evaluation of the primary tanks in the Hanford double shell waste tanks. The analysis is part of a comprehensive structural review for the Double-Shell Tank Integrity Project. This work also provides information on tank integrity that specifically responds to concerns raise by the Office of Environment, Safety, and Health (ES&H) Oversight (EH-22) during a review (in April and May 2001) of work being performed on the double-shell tank farms, and the operation of the aging waste facility (AWF) primary tank ventilation system.

MACKEY, T.C.

2006-03-17T23:59:59.000Z

272

Transport and strain relaxation in wurtzite InAs-GaAs core-shell heterowires  

Science Conference Proceedings (OSTI)

Indium-arsenide-gallium-arsenide (InAs-GaAs) core-shell, wurtzite nanowires have been grown on GaAs (001) substrates. The core-shell geometries (core radii 11 to 26 nm, shell thickness >2.5 nm) exceeded equilibrium critical values for strain relaxation via dislocations, apparent from transmission electron microscopy. Partial axial relaxation is detected in all nanowires increasing exponentially with size, while radial strain relaxation is >90%, but undetected in nanowires with both smaller core radii electron field-effect mobility compared to bare InAs nanowires.

Kavanagh, Karen L. [Department of Physics, Simon Fraser University, Burnaby, British Columbia V5A 1S6 (Canada); Salfi, Joe; Savelyev, Igor; Blumin, Marina; Ruda, Harry E. [Centre for Advanced Nanotechnology, University of Toronto, 170 College Street, Toronto, Ontario M5S 3E4 (Canada)

2011-04-11T23:59:59.000Z

273

OVERVIEW OF HANFORD SINGLE SHELL TANK (SST) STRUCTURAL INTEGRITY - 12123  

SciTech Connect

To improve the understanding of the single-shell tanks (SSTs) integrity, Washington River Protection Solutions, LLC (WRPS), the USDOE Hanford Site tank contractor, developed an enhanced Single-Shell Tank Integrity Project in 2009. An expert panel on SST integrity, consisting of various subject matters experts in industry and academia, was created to provide recommendations supporting the development of the project. This panel developed 33 recommendations in four main areas of interest: structural integrity, liner degradation, leak integrity and prevention, and mitigation of contamination migration. Seventeen of these recommendations were used to develop the basis for the M-45-10-1 Change Package for the Hanford Federal Agreement and Compliance Order, which is also known as the Tri-Party Agreement. The structural integrity of the tanks is a key element in completing the cleanup mission at the Hanford Site. There are eight primary recommendations related to the structural integrity of Hanford SSTs. Six recommendations are being implemented through current and planned activities. The structural integrity of the Hanford SSTs is being evaluated through analysis, monitoring, inspection, materials testing, and construction document review. Structural evaluation in the form of analysis is performed using modern finite element models generated in ANSYS{reg_sign} The analyses consider in-situ, thermal, operating loads and natural phenomena such as earthquakes. Structural analysis of 108 of 149 Hanford SSTs has concluded that the tanks are structurally sound and meet current industry standards. Analyses of the remaining Hanford SSTs are scheduled for FY2013. Hanford SSTs are monitored through a dome deflection program. The program looks for deflections of the tank dome greater than 1/4 inch. No such deflections have been recorded. The tanks are also subjected to visual inspection. Digital cameras record the interior surface of the concrete tank domes, looking for cracks and other surface conditions that may indicate signs of structural distress. The condition of the concrete and rebar of the Hanford SSTs is currently being tested and planned for additional activities in the near future. Concrete and rebar removed from the dome of a 65-year-old tank is being tested for mechanics properties and condition. Results indicated stronger than designed concrete with additional Petrographic examination and rebar testing ongoing. Material properties determined from previous efforts combined with current testing and construction document review will help to generate a database that will provide continuing indication of Hanford SST structural integrity.

RAST RS; RINKER MW; WASHENFELDER DJ; JOHNSON JB

2012-01-25T23:59:59.000Z

274

Oman: World Oil Report 1991  

SciTech Connect

This paper reports that for the sixth consecutive year, Oman should retain its title as the biggest driller in the Middle East in 1991. An accelerated program in 1990 pushed production to an all-time record 700,000 bpd late in the year. Although not a member of Opec, Oman has cooperated with the group in restraining output as needed to support oil prices. Petroleum Development Oman (PDO), a partnership of the government (60%), Royal Dutch Shell (34%), Total (4%) and Partex (2%), remains by far the biggest producer. This year, PDO will begin work on its $500-million effort to boost production from its Lekhwair field from a current 24,000 bpd to 110,000 bpd by 1994. Last year, PDO also drilled 15 horizontal wells, most of which were successful in increasing per well production compared to conventional vertical holes. The horizontal program has been continued this year with two rings.

Not Available

1991-08-01T23:59:59.000Z

275

RECENT PROGRESS IN FABRICATION OF HIGH-STRENGTH GLOW DISCHARGE POLYMER SHELLS BY OPTIMIZATION OF COATING PARAMETERS  

DOE Green Energy (OSTI)

OAK A271 RECENT PROGRESS IN FABRICATION OF HIGH-STRENGTH GLOW DISCHARGE POLYMER SHELLS BY OPTIMIZATION OF COATING PARAMETERS. In this paper, the authors report the progress they have made in fabrication of high-strength thin-walled glow discharge polymer (GDP) shells for cryogenic experiments at OMEGA. They have investigated a number of different parameters involved in making such shells. Optimization of hydrogen to hydrocarbon precursor flow has been observed to be critical in obtaining strong shells. They can routinely make high-strength shells of OMEGA size (900 {micro}m in diameter) with thicknesses in the range of 1.0 to 1.5 {micro}m. The permeabilities of these shells to various gases have been found to be as much as three times higher than those of lower strength shells. Run to run variability and other batch statistics are discussed.

NIKROO, A; CZECHOWICZ, DG; CASTILLO, ER; PONTELANDOLFO, JM

2002-04-01T23:59:59.000Z

276

Bending free toroidal shells for tokamak fusion reactors  

SciTech Connect

Several authors have suggested a novel shape for the toroidal field (TF) coils of a tokamak fusion reactor. Collectively, these magnet shapes have become referred to as the ''Princeton D-coil.'' This coil shape can be derived by assuming that for a thin conductor to be in a state of ''pure tension,'' its radius of curvature must be proportional to the toroidal radius. A principal disadvantage of this derivation is that out-of-plane support, a necessary feature in the design of a tokamak fusion reactor, is neglected. A derivation of a bending free toroidal shell for a tokamak fusion reactor is presented. The out-of-plane structure is considered to be an integral part of the fusion reactor and therefore its shape is optimized to produce a bending free stress distribution. This shape, which is nearly circular for aspect ratios greater than 2.5, is derived by solving the equilibrium, constitutive, and kinematic relationships for a uniform toroidal membrane. This membrane is subjected to a magnetic pressure which is inversely proportional to the square of the toroidal radius. A comparison between this bending free shape and the D-shape is presented.

Gray, W.H.; Stoddart, W.C.T.; Akin, J.E.

1977-01-01T23:59:59.000Z

277

Mechanistic analysis of double-shell tank gas release  

DOE Green Energy (OSTI)

Pacific Northwest Laboratory (PNL) is studying possible mechanisms and fluid dynamics contributing to the periodic release of gases from the double-shell waste storage tanks at Hanford. This study is being conducted for Westinghouse Hanford Company (WHC), a contractor for the US Department of Energy (DOE). This interim report discusses the work done through November 1990. Safe management of the wastes at Hanford depends on an understanding of the chemical and physical mechanisms that take place in the waste tanks. An example of the need to understand these mechanisms is tank 101-SY. The waste in this tank is generating and periodically releasing potentially flammable gases into the tank vent system according to observations of the tank. How these gases are generated and become trapped, the causes of periodic release, and the mechanism of the release are not known in detail. In order to develop a safe mitigation strategy, possible physical mechanisms for the periodic release of flammable gases need to be understood.

Allemann, R.T.; Antoniak, Z.I.; Friley, J.R.; Haines, C.E.; Liljegren, L.M.; Somasundaram, S.

1991-12-01T23:59:59.000Z

278

Double-shell tank ultrasonic inspection plan. Revision 1  

DOE Green Energy (OSTI)

The waste tank systems managed by the Tank Waste Remediation System Division of Westinghouse Hanford Company includes 28 large underground double-shell tanks (DST) used for storing hazardous radioactive waste. The ultrasonic (UT) inspection of these tanks is part of their required integrity assessment (WAC 1993) as described in the tank systems integrity assessment program plan (IAPP) (Pfluger 1994a) submitted to the Ecology Department of the State of Washington. Because these tanks hold radioactive waste and are located underground examinations and inspections must be done remotely from the tank annuli with specially designed equipment. This document describes the UT inspection system (DSTI system), the qualification of the equipment and procedures, field inspection readiness, DST inspections, and post-inspection activities. Although some of the equipment required development, the UT inspection technology itself is the commercially proven and available projection image scanning technique (P-scan). The final design verification of the DSTI system will be a performance test in the Hanford DST annulus mockup that includes the demonstration of detecting and sizing corrosion-induced flaws.

Pfluger, D.C.

1994-09-30T23:59:59.000Z

279

High Level Waste Feed Certification in Hanford Double Shell Tanks  

SciTech Connect

The ability to effectively mix, sample, certify, and deliver consistent batches of High Level Waste (HLW) feed from the Hanford Double Shell Tanks (DST) to the Waste Treatment and Immobilization Plant (WTP) presents a significant mission risk with potential to impact mission length and the quantity of HLW glass produced. DOE’s River Protection Project (RPP) mission modeling and WTP facility modeling assume that individual 3785 cubic meter (1 million gallon) HLW feed tanks are homogenously mixed, representatively sampled, and consistently delivered to the WTP. It has been demonstrated that homogenous mixing of HLW sludge in Hanford DSTs is not likely achievable with the baseline design thereby causing representative sampling and consistent feed delivery to be more difficult. Inconsistent feed to the WTP could cause additional batch to batch operational adjustments that reduces operating efficiency and has the potential to increase the overall mission length. The Hanford mixing and sampling demonstration program will identify DST mixing performance capability, will evaluate representative sampling techniques, and will estimate feed batch consistency. An evaluation of demonstration program results will identify potential mission improvement considerations that will help ensure successful mission completion. This paper will discuss the history, progress, and future activities that will define and mitigate the mission risk.

Thien, Micheal G.; Wells, Beric E.; Adamson, Duane J.

2010-03-01T23:59:59.000Z

280

Emergence of the N=16 shell gap in 21O  

E-Print Network (OSTI)

The spectroscopy of 21O has been investigated using a radioactive 20O beam and the (d,p) reaction in inverse kinematics. The ground and first excited states have been determined to be Jpi=5/2+ and Jpi=1/2+ respectively. Two neutron unbound states were observed at excitation energies of 4.76 +- 0.10 and 6.16 +- 0.11. The spectroscopic factor deduced for the lower of these interpreted as a 3/2+ level, reveals a rather pure 0d3/2 single-particle configuration. The large energy difference between the 3/2+ and 1/2+ states is indicative of the emergence of the N=16 magic number. For the higher lying resonance, which has a character consistent with a spin-parity assignment of 3/2+ or 7/2-, a 71% branching ratio to the first 2+ state in 20O has been observed. The results are compared with new shell model calculations.

B. Fernandez-Dominguez; J. S. Thomas; W. N. Catford; F. Delaunay; S. M. Brown; N. A. Orr; M. Rejmund; N. L. Achouri; H. Al Falou; N. A. Ashwood; D. Beaumel; Y. Blumenfeld; B. A. Brown; R. Chapman; M. Chartier; N. Curtis; C. Force; G. de France; S. Franchoo; J. Guillot; P. Haigh; F. Hammache; M. Labiche; V. Lapoux; R. C. Lemmon; F. Marechal; A. Moro; B. Martin; X. Mougeot; B. Mouginot; L. Nalpas; A. Navin; N. Patterson; B. Pietras; E. C. Pollacco; A. Leprince; A. Ramus; J. A. Scarpaci; N. de Séréville; I. Stefan; O. Sorlin; G. Wilson

2010-12-18T23:59:59.000Z

Note: This page contains sample records for the topic "royal dutch shell" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Double Shell Tank (DST) Diluent and Flush Subsystem Specification  

SciTech Connect

The Double-Shell Tank (DST) Diluent and Flush Subsystem is intended to support Waste Feed Delivery. The DST Diluent and Flush Subsystem specification describes the relationship of this system with the DST System, describes the functions that must be performed by the system, and establishes the performance requirements to be applied to the design of the system. It also provides references for the requisite codes and standards. The DST Diluent and Flush Subsystem will treat the waste for a more favorable waste transfer. This will be accomplished by diluting the waste, dissolving the soluble portion of the waste, and flushing waste residuals from the transfer line. The Diluent and Flush Subsystem will consist of the following: The Diluent and Flush Station(s) where chemicals will be off-loaded, temporarily stored, mixed as necessary, heated, and metered to the delivery system; and A piping delivery system to deliver the chemicals to the appropriate valve or pump pit Associated support structures. This specification is intended to be the basis for new projects/installations. This specification is not intended to retroactively affect previously established project design criteria without specific direction by the program.

GRAVES, C.E.

2000-04-27T23:59:59.000Z

282

Double Shell Tank (DST) Transfer Pump Subsystem Specification  

SciTech Connect

This specification establishes the performance requirements and provides references to the requisite codes and standards to be applied to the Double-Shell Tank (DST) Transfer Pump Subsystem which supports the first phase of Waste Feed Delivery (WFD). This specification establishes the performance requirements and provides the references to the requisite codes and standards to be applied during the design of the DST Transfer Pump Subsystem that supports the first phase of (WFD). The DST Transfer Pump Subsystem consists of a pump for supernatant and or slurry transfer for the DSTs that will be retrieved during the Phase 1 WFD operations. This system is used to transfer low-activity waste (LAW) and high-level waste (HLW) to designated DST staging tanks. It also will deliver blended LAW and HLW feed from these staging tanks to the River Protection Project (RPP) Privatization Contractor facility where it will be processed into an immobilized waste form. This specification is intended to be the basis for new projects/installations (W-521, etc.). This specification is not intended to retroactively affect previously established project design criteria without specific direction by the program.

LESHIKAR, G.A.

2000-03-27T23:59:59.000Z

283

U-157: Ruby Mail Gem Directory Traversal and Shell Command Injection  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

57: Ruby Mail Gem Directory Traversal and Shell Command 57: Ruby Mail Gem Directory Traversal and Shell Command Injection Vulnerabilities U-157: Ruby Mail Gem Directory Traversal and Shell Command Injection Vulnerabilities April 27, 2012 - 7:00am Addthis PROBLEM: Ruby Mail Gem Directory Traversal and Shell Command Injection Vulnerabilities PLATFORM: Mail gem for Ruby 2.x ABSTRACT: Some vulnerabilities have been reported in the Mail gem for Ruby, which can be exploited by malicious people to manipulate certain data and compromise a vulnerable system. Reference Links: Secunia Advisory SA48970 CVE-2012-2139 CVE-2012-2140 IMPACT ASSESSMENT: Medium Discussion: Input passed via the "to" parameter within the file delivery method is not properly verified before being used and can be exploited to modify arbitrary files via directory traversal attacks. Certain input passed to

284

Working and Net Available Shell Storage Capacity as of September 30, 2010 -  

Gasoline and Diesel Fuel Update (EIA)

Working and Net Available Shell Storage Capacity Working and Net Available Shell Storage Capacity With Data for September 2010 | Release Date: July 28, 2011 Working and Net Available Shell Storage Capacity as of September 30, 2010 is the Energy Information Administration's (EIA) first report containing semi-annual storage capacity data. It includes three tables detailing working and net available shell storage capacity by facility type, product, and PAD District as of September 30, 2010. EIA has reported weekly and monthly inventory levels of crude oil and petroleum products for decades. New storage capacity data can help analysts place petroleum inventory levels in context and better understand petroleum market activity and price movements, especially at key market centers such as Cushing, Oklahoma.

285

Retrieval of Ninth Single-Shell Tank Complete | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Retrieval of Ninth Single-Shell Tank Complete Retrieval of Ninth Single-Shell Tank Complete Retrieval of Ninth Single-Shell Tank Complete September 6, 2012 - 12:00pm Addthis Media Contacts Lori Gamache, ORP 509-372-9130 Rob Roxburgh, WRPS 509-376-5188 Richland - Washington River Protection Solutions (WRPS) has completed the retrieval of radioactive and chemical waste from single-shell tank (SST) C-104, an underground storage tank that once held 259,000 gallons of waste left over from nuclear weapons production at Hanford. WRPS is the tank operations contractor for the U.S. Department of Energy (DOE) Office of River Protection (ORP). Tank C-104 is a 530,000-gallon-capacity SST that once contained the second-highest waste volume of the 16 SSTs in Hanford's C Farm, including a significant amount of plutonium and uranium.

286

A Shell/3D Modeling Technique for the Analysis of Delaminated Composite Laminates  

E-Print Network (OSTI)

A shell/3D modeling technique developed which local three-dimensional solid finite element model used only immediate vicinity delamination front. The goal was combine the accuracy the three-dimensional solution with the computational efficiency plate shell finite element model. Multi-point constraints provided kinematically compatible interface between local three-dimensional model global structural model which has been meshed with plate shell finite elements. Double Cantilever Beam (DCB), Notched Flexure (ENF), Single Bending (SLB) specimens were modeled using shell/3D technique study feasibility pure mode (DCB), mode (ENF) mixed mode I/II (SLB) cases. Mixed mode strain energy release rate distributions were computed across the width specimens using virtual crack closure technique. Specimens a unidirectional layup and with multidirectional layup where delamination located between two non-zero degree plies were simulated. For a local three-dimensional model, extending minimum about thr...

Ronald Krueger; T. Kevin O' Brien

2001-01-01T23:59:59.000Z

287

Combinatorial synthesis of chemically diverse core-shell nanoparticles for intracellular delivery  

E-Print Network (OSTI)

Analogous to an assembly line, we employed a modular design for the high-throughput study of 1,536 structurally distinct nanoparticles with cationic cores and variable shells. This enabled elucidation of complexation, ...

Siegwart, Daniel

288

Microsoft Word - Little Shell Final Draft CX 7-15-2013  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Little Shell Property funding Fish and Wildlife Project No. and Contract No.: 2002-003-00, BPA-007168 Categorical Exclusion Applied (from Subpart D, 10 C.F.R. Part 1021): B1.25...

289

Long-Range Validity of Threshold Laws in Inner-Shell Photodetachment  

NLE Websites -- All DOE Office Websites (Extended Search)

Long-Range Validity of Threshold Laws in Inner-Shell Photodetachment Print A threshold law describes the dependence of a reaction yield near a reaction threshold. It is also a...

290

Carbonate clumped isotope compositions of modern marine mollusk and brachiopod shells  

E-Print Network (OSTI)

, leaving the oxygen isotope paleother- mometer underdetermined in most geologic applicationsCarbonate clumped isotope compositions of modern marine mollusk and brachiopod shells Gregory A, Baltimore, MD 21218, USA b Department of Geological & Atmospheric Sciences, Iowa State University, Ames, IA

Grossman, Ethan L.

291

CONSTRUCTION METHOD STUDY FOR INSTALLATION OF A LARGE RISER IN A SINGLE-SHELL TANK  

SciTech Connect

This study evaluates and identifies a construction method for cutting a hole in a single-shell tank dome. This study also identifies and evaluates vendors for performing the cut.

ADKISSON DA

2010-08-04T23:59:59.000Z

292

Radar cross-section formulation of a shell-shaped projectile using modified PO analysis  

Science Conference Proceedings (OSTI)

A physical optics based method is presented for calculation of monostatic Radar Cross-Section (RCS) of a shell-shaped projectile. The projectile is modeled using differential geometry. The paper presents a detailed analysis procedure for RCS formulation ...

Mohammad Asif Zaman; Md. Abdul Matin

2012-01-01T23:59:59.000Z

293

U.S. Refinery Normal Butane/Butylene Shell Storage Capacity as ...  

U.S. Energy Information Administration (EIA)

U.S. Refinery Normal Butane/Butylene Shell Storage Capacity as of January 1 (Thousand Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 ...

294

Synthesis and Properties of Multiferroic A2BB'O6@ABO3 Core/Shell ...  

Science Conference Proceedings (OSTI)

Due to the primary requirement on the coexistence of magnetic and electric ... process for the fabrication of core/shell A2BB'O6@ABO3 nanocomposites to ...

295

Vanishing N=20 Shell Gap: Study of Excited States in {sup 27,28}Ne  

Science Conference Proceedings (OSTI)

This Letter reports on the {sup 1}H({sup 28}Ne,{sup 28}Ne) and {sup 1}H({sup 28}Ne,{sup 27}Ne) reactions studied at intermediate energy using a liquid hydrogen target. From the cross section populating the first 2{sup +} excited state of {sup 28}Ne, and using the previously determined B(E2) value, the neutron quadrupole transition matrix element has been calculated to be M{sub n}=13.8{+-}3.7 fm{sup 2}. In the neutron knockout reaction, two low-lying excited states were populated in {sup 27}Ne. Only one of them can be interpreted by the sd shell model while the additional state may intrude from the fp shell. These experimental observations are consistent with the presence of fp shell configurations at low excitation energy in {sup 27,28}Ne nuclei caused by a vanishing N=20 shell gap at Z=10.

Dombradi, Zs.; Fueloep, Zs. [Institute of Nuclear Research of the Hungarian Academy of Sciences, P.O. Box 51, Debrecen, H-4001 (Hungary); Elekes, Z. [Institute of Nuclear Research of the Hungarian Academy of Sciences, P.O. Box 51, Debrecen, H-4001 (Hungary); Institute of Physical and Chemical Research, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan); Saito, A.; Baba, H.; Demichi, K.; Gomi, T.; Hasegawa, H.; Kanno, S.; Kawai, S.; Kurita, K.; Matsuyama, Y.; Sakai, H.K.; Takeshita, E.; Togano, Y.; Yamada, K. [Rikkyo University, 3 Nishi-Ikebukuro, Toshima, Tokyo 171 (Japan); Aoi, N.; Ishihara, M.; Kishida, T.; Kubo, T. [Institute of Physical and Chemical Research, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan)] (and others)

2006-05-12T23:59:59.000Z

296

Vibrations of a Hollow Nanosphere with a Porous Thin Shell in Liquid  

E-Print Network (OSTI)

*,, The Open Laboratory of Bond-Selective Chemistry, Departmental of Chemical Physics, University of Science time, Rayleigh3 discussed the flexural vibrations of an open shell or bowl, which is different from

Wu, Chi

297

Efficiently recyclable magnetic core-shell photocatalyst for photocatalytic oxidation of chlorophenol in water  

Science Conference Proceedings (OSTI)

Multifunctional Fe{sub 3}O{sub 4}-TiO{sub 2} core-shell submicron particles were fabricated by a simple surface modification process that induces the magnetic submicron particles to be coated with a TiO{sub 2} shell. As characterized by field emission scanning electron microscopy, (FESEM), the as-synthesized Fe{sub 3}O{sub 4}-TiO{sub 2} particles exhibit a narrow size distribution with a typical size of 248 {+-} 19 nm and 8 nm in shell thickness. Magnetic measurement indicates that the as-synthesized Fe{sub 3}O{sub 4}-TiO{sub 2} core-shell particles are superparamagnetic at room temperature. Photocatalytic experiment is demonstrated by utilizing the oxidation reaction of 2,4,6-trichlorophenol (2,4,6-TCP) with the photofunctional magnetic nanoparticles.

Choi, Kyong-Hoon [Material R and D Division, H and Global Co. Ltd., Sohadong, Gwangmyeong 423-050 (Korea, Republic of); Oh, Seung-Lim [Gangneung Center, Korea Basic Science Institute, Gangneung 210-702 (Korea, Republic of); Jung, Jong-Hyung; Jung, Jin-Seung [Department of Chemistry, Gangneung-Wonju National University, Gangneung 210-702 (Korea, Republic of)

2012-04-01T23:59:59.000Z

298

Hanford Determines Double-Shell Tank Leaked Waste From Inner Tank |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Determines Double-Shell Tank Leaked Waste From Inner Tank Determines Double-Shell Tank Leaked Waste From Inner Tank Hanford Determines Double-Shell Tank Leaked Waste From Inner Tank October 22, 2012 - 12:00pm Addthis Media Contacts Lori Gamache, ORP 509-372-9130 John Britton, WRPS 509-376-5561 RICHLAND - The Department of Energy's Office of River Protection (ORP), working with its Hanford tank operations contractor Washington River Protection Solutions, has determined that there is a slow leak of chemical and radioactive waste into the annulus space in Tank AY-102, the approximately 30-inch area between the inner primary tank and the outer tank that serves as the secondary containment for these types of tanks. This is the first time a double-shell tank (DST) leak from the primary tank into the annulus has been identified. There is no indication of waste in

299

A new shell for the development of alarm pattern recognition expert systems  

Science Conference Proceedings (OSTI)

This paper presents the first version of GENESIS, an expert system shell suitable for the development of alarm pattern recognition expert systems (APRES). GENESIS Includes a series of algorithms and procedures especially designed for a rapid and systematic ...

Juan Arellano; Yalu Galicia; Edgar C. Ramirez Dominguez

1990-06-01T23:59:59.000Z

300

Free vibration analysis of complete paraboloidal shells of revolution with variable thickness and solid paraboloids from a three-dimensional theory  

Science Conference Proceedings (OSTI)

A three-dimensional (3-D) method of analysis is presented for determining the free vibration frequencies and mode shapes of solid paraboloids and complete (that is, without a top opening) paraboloidal shells of revolution with variable wall thickness. ... Keywords: Complete paraboloidal shells, Ritz method, Shells of revolution, Solid paraboloids, Thick shell, Three-dimensional analysis, Variable thickness, Vibration

Jae-Hoon Kang; Arthur W. Leissa

2005-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "royal dutch shell" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Review of technologies for the pretreatment of retrieved single-shell tank waste at Hanford  

SciTech Connect

The purpose of the study reported here was to identify and evaluate innovative processes that could be used to pretreat mixed waste retrieved from the 149 single-shell tanks (SSTs) on the US Department of Energy`s (DOE) Hanford site. The information was collected as part of the Single Shell Tank Waste Treatment project at Pacific Northwest Laboratory (PNL). The project is being conducted for Westinghouse Hanford Company under their SST Disposal Program.

Gerber, M.A.

1992-08-01T23:59:59.000Z

302

Review of technologies for the pretreatment of retrieved single-shell tank waste at Hanford  

SciTech Connect

The purpose of the study reported here was to identify and evaluate innovative processes that could be used to pretreat mixed waste retrieved from the 149 single-shell tanks (SSTs) on the US Department of Energy's (DOE) Hanford site. The information was collected as part of the Single Shell Tank Waste Treatment project at Pacific Northwest Laboratory (PNL). The project is being conducted for Westinghouse Hanford Company under their SST Disposal Program.

Gerber, M.A.

1992-08-01T23:59:59.000Z

303

Thin shell wormhole due to dyadosphere of a charged black hole  

E-Print Network (OSTI)

To explain Gamma Ray Bursts, Ruffini argued that the event horizon of a charged black hole is surrounded by a special region called, the Dyadosphere where electric field exceeds the critical value for $e^+$ $e^-$ pair production. In the present work, we construct a thin shell wormhole by performing a thought surgery between two dadospheres. Several physical properties of this thin shell wormhole have been analyzed.

F. Rahaman; M. Kalam; K A Rahman

2008-06-09T23:59:59.000Z

304

Preferential CO Oxidation in Hydrogen: Reactivity of Core-Shell Nanoparticles  

Science Conference Proceedings (OSTI)

We report on the first-principles-guided design, synthesis, and characterization of core-shell nanoparticle (NP) catalysts made of a transition metal core (M ) Ru, Rh, Ir, Pd, or Au) covered with a ?1-2 monolayer thick shell of Pt atoms (i.e., a M@Pt core-shell NP). An array of experimental techniques, including X-ray diffraction, Fourier transform infrared spectroscopy, high resolution transmission electron microscopy, and temperature-programmed reaction, are employed to establish the composition of the synthesized NPs. Subsequent studies of these NPs’ catalytic properties for preferential CO oxidation in hydrogen-rich environments (PROX), combined with Density Functional Theory (DFT)-based mechanistic studies, elucidate important trends and provide fundamental understanding of the reactivity of Pt shells as a function of the core metal. Both the PROX activity and selectivity of several of these M@Pt core-shell NPs are significantly improved compared to monometallic and bulk nonsegregated bimetallic nanoalloys. Among the systems studied, Ru@Pt core-shell NPs exhibit the highest PROX activity, where the CO oxidation is complete by 30 °C (1000 ppm CO in H2). Therefore, despite their reduced Pt content, M@Pt core-shell NPs afford the design of more active PROX catalysts. DFT studies suggest that the relative differences in the catalytic activities for the various core-shell NPs originate from a combination of (i) the relative availability of CO-free Pt surface sites on the M@Pt NPs, which are necessary for O2 activation, and (ii) a hydrogen-mediated low-temperature CO oxidation process that is clearly distinct from the traditional bifunctional CO oxidation mechanism.

Nilekar, Anand U.; Alayoglu, Selim; Eichhorn, Bryan W.; Mavrikakis, Manos

2010-06-02T23:59:59.000Z

305

Unique Challenges Accompany Thick-Shell CdSe/nCdS (n > 10) Nanocrystal Synthesis  

SciTech Connect

Thick-shell CdSe/nCdS (n {ge} 10) nanocrystals were recently reported that show remarkably suppressed fluorescence intermittency or 'blinking' at the single-particle level as well as slow rates of Auger decay. Unfortunately, whereas CdSe/nCdS nanocrystal synthesis is well-developed up to n {le} 6 CdS monolayers (MLs), reproducible syntheses for n {ge} 10 MLs are less understood. Known procedures sometimes result in homogeneous CdS nucleation instead of heterogeneous, epitaxial CdS nucleation on CdSe, leading to broad and multimodal particle size distributions. Critically, obtained core/shell sizes are often below those desired. This article describes synthetic conditions specific to thick-shell growth (n {ge} 10 and n {ge} 20 MLs) on both small (sub2 nm) and large (>4.5 nm) CdSe cores. We find added secondary amine and low concentration of CdSe cores and molecular precursors give desired core/shell sizes. Amine-induced, partial etching of CdSe cores results in apparent shell-thicknesses slightly beyond those desired, especially for very-thick shells (n {ge} 20 MLs). Thermal ripening and fast precursor injection lead to undesired homogeneous CdS nucleation and incomplete shell growth. Core/shells derived from small CdSe (1.9 nm) have longer PL lifetimes and more pronounced blinking at single-particle level compared with those derived from large CdSe (4.7 nm). We expect our new synthetic approach will lead to a larger throughput of these materials, increasing their availability for fundamental studies and applications.

Guo, Y; Marchuk, K; Abraham, R; Sampat, S; Abraham, R.; Fang, N; Malko, AV; Vela, J

2011-12-23T23:59:59.000Z

306

Features of the electronic spectrum in a type-I core - shell quantum dot  

Science Conference Proceedings (OSTI)

The model is proposed, which allows one to solve the problem of finding the energy spectrum and the wave function of an electron in a type-I core - shell quantum dot. It is shown that the size of the core and shell can serve as control parameters for the optimisation of the energy structure of the quantum dot in order to obtain the real structures with desired electrophysical and optical properties. (quantum dots)

Igoshina, S E; Karmanov, A A [Penza State University, Penza (Russian Federation)

2013-01-31T23:59:59.000Z

307

Controllable synthesis of a novel hedgehog-like core/shell structure  

Science Conference Proceedings (OSTI)

A novel hedgehog-like core/shell structure, consisting of a high density of vertically aligned graphene sheets and a thin graphene shell/a copper core (VGs-GS/CC), has been synthesized via a simple one-step synthesis route using radio-frequency plasma-enhanced chemical vapor deposition (RF-PECVD). Scanning and transmission electron microscopy investigations show that the morphology of this core/shell material could be controlled by deposition time. For a short deposition time, only multilayer graphene shell tightly surrounds the copper particle, while as the deposition time is relative long, graphene sheets extend from the surface of GS/CC. The GS can protect CC particles from oxidation. The growth mechanism for the obtained GS/CC and VGs-GS/CC has been revealed. Compared to VGs, VGs-GS/CC material exhibits a better electron field emission property. This investigation opens a possibility for designing a core/shell structure of different carbon-metal hybrid materials for a wide variety of practical applications. - Graphical abstract: With increasing deposition time, graphene sheets extend from the surface of GS/CC, causing the multilayer graphene encapsulated copper to be converted into vertically aligned graphene sheets-graphene shell/copper core structure. Highlights: Black-Right-Pointing-Pointer A novel hedgehog-like core/shell structure has been synthesized. Black-Right-Pointing-Pointer The structure consists of vertical graphene sheets-graphene shell and copper core. Black-Right-Pointing-Pointer The morphology of VGs-GS/CC can be controlled by choosing a proper deposition time. Black-Right-Pointing-Pointer With increasing deposition time, graphene sheets extend from the surface of GS/CC. Black-Right-Pointing-Pointer VGs-GS/CC exhibits a better electron field emission property as compared with VGs.

Wang Shumin; Tian Hongwei; Pei Yanhui; Meng Qingnan; Chen Jianli; Wang Huan; Zeng Yi [Department of Materials Science, Key Laboratory of Mobile Materials, MOE, and State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012 (China); Zheng Weitao, E-mail: wtzheng@jlu.edu.cn [Department of Materials Science, Key Laboratory of Mobile Materials, MOE, and State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012 (China); Liu Yichun [Center for Advanced Optoelectronic Functional Materials Research and Key Laboratory for UV-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, 5268 Renmin Street, Changchun 130024 (China)

2012-02-15T23:59:59.000Z

308

royal institute of technology annual report 2007  

E-Print Network (OSTI)

(Committee Chairman) Dr. J. Patterson, Head of Fuel Cycle Technology, British Nuclear Fuels Professor C ..............................................................................................................................9 V Carbon Nanomaterials of Societies of Microscopy (2003-6). 3. Appointment of Andrew Briggs to the Professorship of Nanomaterials

Haviland, David

309

NEWS FROM THE ROYAL SOCIETY SPRING 2009  

E-Print Network (OSTI)

of separated plutonium stockpiled in the UK ­ currently the highest in the world. With support from our Plutonium Working Group, the Society has submitted detailed comment to the Nuclear Decommissioning Authority of a geological repository for radioactive waste. A late decision to incorporate plutonium disposal at such a site

Rambaut, Andrew

310

Julian Szekely Memorial Symposium: Royal Sonesta Hotel  

Science Conference Proceedings (OSTI)

... easy access to the historic waterfront, Quincy Market and the financial district. ... If you need any additional information on location directions, please contact ...

311

Shell Structure from 100Sn to 78Ni: Implications for Nuclear Astrophysics  

Science Conference Proceedings (OSTI)

The single-particle structure and shell gap of {sup 100}Sn is inferred from prompt in-beam and delayed {gamma}-ray spectroscopy of seniority and spin-gap isomers. Recent results in {sup 94, 95}Ag and {sup 98}Cd stress the importance of large-scale shell model calculations employing realistic interactions for the isomerism, np-nh excitations and E2 polarization of the {sup 100}Sn core. The strong monopole interaction of the {Delta}l = 0 spin-flip partners {pi}g{sub 9/2-} {nu}g{sub 7/2} in N = 51 isotones below {sup 100}Sn is echoed in the {Delta}l = 1 pf5/2- ?g9/2 pair of nucleons, which is decisive for the persistence of the N = 50 shell gap in {sup 78}Ni. This is corroborated by recent experimental data on {sup 70, 76}Ni, {sup 78}Zn. The importance of monopole driven shell evolution for the appearance of new shell closures in neutron-rich nuclei and implications for r-process abundances near the N = 82 shell is discussed.

Grawe, Hubert H [ORNL; Blazhev, A. [Gesellschaft fur Schwerionenforschung (GSI), Germany; Gorska, M. [Gesellschaft fur Schwerionenforschung (GSI), Germany; Mukha, I. [Gesellschaft fur Schwerionenforschung (GSI), Germany; Plettner, C. [Gesellschaft fur Schwerionenforschung (GSI), Germany; Roeckl, E. [Gesellschaft fur Schwerionenforschung (GSI), Germany; Nowacki, F. [IReS, Strasbourg, Cedex, France; Grzywacz, Robert Kazimierz [ORNL; Sawicka, M. [University of Warsaw

2005-09-01T23:59:59.000Z

312

Bandgap Engineering of InP QDs Through Shell Thickness and Composition  

SciTech Connect

Fields as diverse as biological imaging and telecommunications utilize the unique photophysical and electronic properties of nanocrystal quantum dots (NQDs). The development of new NQD compositions promises material properties optimized for specific applications, while addressing material toxicity. Indium phosphide (InP) offers a 'green' alternative to the traditional cadmium-based NQDs, but suffers from extreme susceptibility to oxidation. Coating InP cores with more stable shell materials significantly improves nanocrystal resistance to oxidation and photostability. We have investigated several new InP-based core-shell compositions, correlating our results with theoretical predictions of their optical and electronic properties. Specifically, we can tailor the InP core-shell QDs to a type-I, quasi-type-II, or type-II bandgap structure with emission wavelengths ranging from 500-1300 nm depending on the shell material used (ZnS, ZnSe, CdS, or CdSe) and the thickness of the shell. Single molecule microscopy assessments of photobleaching and blinking are used to correlate NQD properties with shell thickness.

Dennis, Allison M. [Los Alamos National Laboratory; Mangum, Benjamin D. [Los Alamos National Laboratory; Piryatinski, Andrei [Los Alamos National Laboratory; Park, Young-Shin [Los Alamos National Laboratory; Htoon, Han [Los Alamos National Laboratory; Hollingsworth, Jennifer A. [Los Alamos National Laboratory

2012-06-21T23:59:59.000Z

313

A Yolk-Shell Design for Stabilized and Scalable Li-Ion Battery Alloy Anodes  

SciTech Connect

Silicon is regarded as one of the most promising anode materials for next generation lithium-ion batteries. For use in practical applications, a Si electrode must have high capacity, long cycle life, high efficiency, and the fabrication must be industrially scalable. Here, we design and fabricate a yolk-shell structure to meet all these needs. The fabrication is carried out without special equipment and mostly at room temperature. Commercially available Si nanoparticles are completely sealed inside conformal, thin, self-supporting carbon shells, with rationally designed void space in between the particles and the shell. The well-defined void space allows the Si particles to expand freely without breaking the outer carbon shell, therefore stabilizing the solid-electrolyte interphase on the shell surface. High capacity (?2800 mAh/g at C/10), long cycle life (1000 cycles with 74% capacity retention), and high Coulombic efficiency (99.84%) have been realized in this yolk-shell structured Si electrode.

Liu, Nian; Wu, Hui; Mcdowell, Matthew T.; Yao, Yan; Wang, Chong M.; Cui, Yi

2012-05-02T23:59:59.000Z

314

Single-shell tank closure work plan. Revision A  

SciTech Connect

In January 1994, the Hanford Federal Facility Agreement and Conset Order (Tri-Party Agreement) was amended to reflect a revised strategy for remediation of radioactive waste in underground storage tanks. These amendments include milestones for closure of the single-shell tank (SST) operable units, to be initiated by March 2012 and completed by September 2024. This SST-CWP has been prepared to address the principal topical areas identified in Tri-Party Agreement Milestone M-45-06 (i.e., regulatory pathway, operable unit characterization, waste retrieval, technology development, and a strategy for achieving closure). Chapter 2.0 of this SST-CWP provides a brief description of the environmental setting, SST System, the origin and characteristics of SST waste, and ancillary equipment that will be remediated as part of SST operable unit closure. Appendix 2A provides a description of the hydrogeology of the Hanford Site, including information on the unsaturated sediments (vadose zone) beneath the 200 Areas Plateau. Chapter 3.0 provides a discussion of the laws and regulations applicable to closure of the SST farm operable units. Chapter 4.0 provides a summary description of the ongoing characterization activities that best align with the proposed regulatory pathway for closure. Chapter 5.0 describes aspects of the SST waste retrieval program, including retrieval strategy, technology, and sequence, potential tank leakage during retrieval, and considerations of deployment of subsurface barriers. Chapter 6.0 outlines a proposed strategy for closure. Chapter 7.0 provides a summary of the programs underway or planned to develop technologies to support closure. Ca. 325 refs.

NONE

1995-06-01T23:59:59.000Z

315

Process-Dependent Properties in Colloidally Synthesized “Giant” Core/Shell Nanocrystal Quantum Dots  

SciTech Connect

Due to their characteristic bright and stable photoluminescence, semiconductor nanocrystal quantum dots (NQDs) have attracted much interest as efficient light emitters for applications from single-particle tracking to solid-state lighting. Despite their numerous enabling traits, however, NQD optical properties are frustratingly sensitive to their chemical environment, exhibit fluorescence intermittency ('blinking'), and are susceptible to Auger recombination, an efficient nonradiative decay process. Previously, we showed for the first time that colloidal CdSe/CdS core/shell nanocrystal quantum dots (NQDs) comprising ultrathick shells (number of shell monolayers, n, > 10) grown by protracted successive ionic layer adsorption and reaction (SILAR) leads to remarkable photostability and significantly suppressed blinking behavior as a function of increasing shell thickness. We have also shown that these so-called 'giant' NQDs (g-NQDs) afford nearly complete suppression of non-radiative Auger recombination, revealed in our studies as long biexciton lifetimes and efficient multiexciton emission. The unique behavior of this core/shell system prompted us to assess correlations between specific physicochemical properties - beyond shell thickness - and functionality. Here, we demonstrate the ability of particle shape/faceting, crystalline phase, and core size to determine ensemble and single-particle optical properties (quantum yield/brightness, blinking, radiative lifetimes). Significantly, we show how reaction process parameters (surface-stabilizing ligands, ligand:NQD ratio, choice of 'inert' solvent, and modifications to the SILAR method itself) can be tuned to modify these function-dictating NQD physical properties, ultimately leading to an optimized synthetic approach that results in the complete suppression of blinking. We find that the resulting 'guiding principles' can be applied to other NQD compositions, allowing us to achieve non-blinking behavior in the near-infrared. Lastly, in addition to realizing novel light-emission properties by refining nanoscale architectures at the single-NQD level, we also investigate collective properties by assembling our core/shell NQDs into larger scale arrays.

Hollingsworth, Jennifer A. [Los Alamos National Laboratory; Ghosh, Yagnaseni [Los Alamos National Laboratory; Dennis, Allison M. [Los Alamos National Laboratory; Mangum, Benjamin D. [Los Alamos National Laboratory; Park, Young-Shin [Los Alamos National Laboratory; Kundu, Janardan [Los Alamos National Laboratory; Htoon, Han [Los Alamos National Laboratory

2012-06-07T23:59:59.000Z

316

Neoliberal Governmentality, Corporate Responsibility, and the Governing of Citizens in Nigeria: The case of ExxonMobil, Shell, and Chevron.  

E-Print Network (OSTI)

??This thesis investigates how oil corporations in Nigeria govern citizens through the implementation of certain corporate responsibility initiatives. The examination of ExxonMobil, Shell, and Chevron,… (more)

Zawada, Anna

2010-01-01T23:59:59.000Z

317

RCRA Assessment Plan for Single-Shell Tank Waste Management Area A-AX at the Hanford Site  

Science Conference Proceedings (OSTI)

This document describes a groundwater assessment plan for the single-shell tank systems in Waste Management Area A-AX at the Hanford Site.

Narbutovskih, Susan M.; Chou, Charissa J.

2006-03-03T23:59:59.000Z

318

Flexible Zn2SnO4/MnO2 Core/Shell Nanocable-Carbon Microfiber ...  

Science Conference Proceedings (OSTI)

Presentation Title, Flexible Zn2SnO4/MnO2 Core/Shell Nanocable-Carbon Microfiber Hybrid Composites for High-Performance Supercapacitor Electrodes.

319

Absence of molecular deuterium dissociation during room-temperature permeation into polystyrene ICF target shells  

DOE Green Energy (OSTI)

Polystyrene microshells filled with deuterium and tritium gas are important target shells for inertially confined fusion (ICF) and are particularly promising for target containing spin-polarized hydrogens fuels. A currently active approach to the latter uses polarized D in HD, in a method which requires preservation of the high purity of the initially prepared HD (very low specified H{sub 2} and D{sub 2} concentrations). This would not be possible if dissociation should occur during permeation into the target shells. We have thus tested polystyrene shells using a novel method which employs very pure polystyrene shells using a novel method which employs very pure ortho-D{sub 2} as the test gas. An upper limit of 6 {times} 10{sup {minus}4} was deduced for the dissociation of D{sub 2} upon room temperature permeation through an approximately 8 um wall of polystyrene, clearing the way for use of polystyrene target shells for ICF fusion experiments with spin-polarized hydrogens fuels. 19 refs., 1 fig.

Honig, A.; Alexander, N.; Fan, Q. (Syracuse Univ., NY (USA). Dept. of Physics); Gram, R.; Kim, H. (Rochester Univ., NY (USA). Lab. for Laser Energetics)

1991-01-01T23:59:59.000Z

320

Radiation-reaction in classical offshell electrodynamics: I. The above mass-shell case  

E-Print Network (OSTI)

Offshell electrodynamics based on a manifestly covariant off-shell relativistic dynamics of Stueckelberg, Horwitz and Piron, is five-dimensional. In this paper, we study the problem of radiation reaction of a particle in motion in this framework. In particular, the case of above-mass-shell is studied in detail, where the renormalization of the Lorentz force leads to a system of non-linear differential equations for 3 Lorentz scalars. The system is then solved numerically, where it is shown that the mass-shell deviation scalar $\\ve$ either smoothly falls down to 0 (this result provides a mechanism for the mass stability of the off-shell theory), or strongly diverges under more extreme conditions. In both cases, no runaway motion is observed. Stability analysis indicates that the system seems to have chaotic behavior in the divergent case. It is also shown that, although a motion under which the mass-shell deviation $\\ve$ is constant but not-zero, is indeed possible, but, it is unstable, and eventually it either decays to 0 or diverges.

I. Aharonovich; L. P. Horwitz

2011-05-27T23:59:59.000Z

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321

The jump-off velocity of an impulsively loaded spherical shell  

SciTech Connect

We consider a constant temperature spherical shell of isotropic, homogeneous, linearly elastic material with density {rho} and Lame coefficients {lambda} and {mu}. The inner and outer radii of the shell are r{sub i} and r{sub o}, respectively. We assume that the inside of the shell is a void. On the outside of the shell, we apply a uniform, time-varying pressure p(t). We also assume that the shell is initially at rest. We want to compute the jump-off time and velocity of the pressure wave, which are the first time after t = 0 at which the pressure wave from the outer surface reaches the inner surface. This analysis computes the jump-off velocity and time for both compressible and incompressible materials. This differs substantially from [3], where only incompressible materials are considered. We will consider the behavior of an impulsively loaded, exponentially decaying pressure wave p(t) = P{sub 0{sup e}}{sup -{alpha}t}, where {alpha} {ge} 0. We notice that a constant pressure wave P(t) = P{sub 0} is a special case ({alpha} = 0) of a decaying pressure wave. Both of these boundary conditions are considered in [3].

Chabaud, Brandon M. [Los Alamos National Laboratory; Brock, Jerry S. [Los Alamos National Laboratory

2012-04-13T23:59:59.000Z

322

Long-Range Validity of Threshold Laws in Inner-Shell Photodetachment  

NLE Websites -- All DOE Office Websites (Extended Search)

Long-Range Validity of Threshold Long-Range Validity of Threshold Laws in Inner-Shell Photodetachment Long-Range Validity of Threshold Laws in Inner-Shell Photodetachment Print Wednesday, 29 March 2006 00:00 A threshold law describes the dependence of a reaction yield near a reaction threshold. It is also a signature of the physical forces involved in the reaction, so the agreement of an observed threshold behavior with a threshold law or a departure from it can be a sensitive probe into how well the reaction physics is understood. A collaboration from Western Michigan University, the ALS, and Denison University has now shown that the threshold laws for inner-shell photodetachment of negative ions are not only obeyed but can extend over a much wider energy range than theory had predicted.

323

Workers Complete Retrieval of 11th Single-Shell Tank at EM's Hanford Site  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Workers Complete Retrieval of 11th Single-Shell Tank at EM's Workers Complete Retrieval of 11th Single-Shell Tank at EM's Hanford Site Workers Complete Retrieval of 11th Single-Shell Tank at EM's Hanford Site November 26, 2013 - 12:00pm Addthis A composite image comprised of dozens of photos taken inside C-110 provides a rare panoramic view of the tank interior. Portions of the tank floor and the FoldTrack waste-retrieval system are clearly visible. A composite image comprised of dozens of photos taken inside C-110 provides a rare panoramic view of the tank interior. Portions of the tank floor and the FoldTrack waste-retrieval system are clearly visible. Operators use multiple technologies to remove waste from underground storage tank RICHLAND, Wash. - EM's Office of River Protection and its tank farm contractor, Washington River Protection Solutions (WRPS), recently

324

Proton-Neutron Coupling in the Gamow Shell Model: the Lithium Chain  

E-Print Network (OSTI)

The shell model in the complex k-plane (the so-called Gamow Shell Model) has recently been formulated and applied to structure of weakly bound, neutron-rich nuclei. The completeness relations of Newton and Berggren, which apply to the neutron case, are strictly valid for finite-range potentials. However, for long-range potentials, such as the Coulomb potential for protons, for which the arguments based on the Mittag-Leffler theory do not hold, the completeness still needs to be demonstrated. This has been done in this paper, both analytically and numerically. The generalized Berggren relations are then used in the first Gamow Shell Model study of nuclei having both valence neutrons and protons, namely the lithium chain. The single-particle basis used is that of the Hartree-Fock-inspired potential generated by a finite-range residual interaction. The effect of isospin mixing in excited unbound states is discussed.

N. Michel; W. Nazarewicz; M. Ploszajczak

2004-07-29T23:59:59.000Z

325

Preliminary design requirements document for the initial single-shell tank retrieval system  

Science Conference Proceedings (OSTI)

The scope of this Preliminary Design Requirements Document is to identify and define the functions, with associated requirements, which must be performed to demonstrate and accomplish the initial single-shell tank saltcake retrieval from selected tanks. This document sets forth functions, requirements, performance requirements and design constraints necessary to begin conceptual design for the Initial Single-shell Tank Retrieval System. System and physical interfaces between the Initial Single-shell Tank Retrieval System project and the Tank Waste Remediation are identified. The constraints, performance requirements, and transfer of information and data across a technical interface will be documented in an Interface Control Document. The design requirements provided in this document will be augmented by additional detailed design to be documented by the project.

Hertzel, J.S., Westinghouse Hanford

1996-07-24T23:59:59.000Z

326

Shell model half-lives for r-process N=82 nuclei  

E-Print Network (OSTI)

We have performed shell-model calculations of the half-lives and neutron-branching probabilities of the r-process waiting point nuclei at the magic neutron number N=82. These new calculations use a larger model space than previous shell model studies and an improved residual interaction which is adjusted to recent spectroscopic data around A=130. Our shell-model results give a good account of all experimentally known half-lives and $Q_\\beta$-values for the N=82 r-process waiting point nuclei. Our half-life predictions for the N=82 nuclei with Z=42--46 agree well with recent estimates based in the energy-density functional method.

J. J. Cuenca-Garcia; G. Martinez-Pinedo; K. Langanke; F. Nowacki; I. N. Borzov

2008-11-07T23:59:59.000Z

327

Hanford Double-Shell Tank Inspection Annual Report Calendar Year 2012  

SciTech Connect

The double-shell tanks (DSTs) were constructed between 1968 and 1986. They will have exceeded their design life before the waste can be removed and trasferred to the Waste Treatment and Immobilization Plant for vitrification. The Double-Shell Tank Integrity Project has been established to evaluate tank aging, and ensure that each tank is structurally sound for continued use. This is the first issue of the Double-Shell Tank Inspection Annual Report. The purpose of this issue is to summarize the results of DST inspections conducted from the beginnng of the inspection program through the end of CY2012. Hereafter, the report will be updated annually with summaries of the past year's DST inspection activities.

Petermann, Tasha M.; Boomer, Kayle D.; Washenfelder, D. J.

2013-12-02T23:59:59.000Z

328

Localization of electric field distribution in graded core-shell metamaterials  

E-Print Network (OSTI)

The local electric field distribution has been investigated in a core-shell cylindrical metamaterial structure under the illumination of a uniform incident optical field. The structure consists of a homogeneous dielectric core, a shell of graded metal-dielectric metamaterial, embedded in a uniform matrix. In the quasi-static limit, the permittivity of the metamaterial is given by the graded Drude model. The local electric potentials and hence the electric fields have been derived exactly and analytically in terms of hyper-geometric functions. Our results showed that the peak of the electric field inside the cylindrical shell can be confined in a desired position by varying the frequency of the optical field and the parameters of the graded profiles. Thus, by fabricating graded metamaterials, it is possible to control electric field distribution spatially. We offer an intuitive explanation for the gradation-controlled electric field distribution.

Wei, En-Bo; 10.1103/PhysRevE.80.046607

2009-01-01T23:59:59.000Z

329

A Survey of Vapors in the Headspaces of Single-Shell Waste Tanks  

SciTech Connect

This report summarizes data on the organic vapors in the single-shell high level radioactive waste tanks at the Hanford site to support a forthcoming toxicological study. All data were obtained from the Tank Characterization Database (PNNL 1999). The TCD contains virtually all the available tank headspace characterization data from 1992 to the present, and includes data for 109 different single-shell waste tanks. Each single-shell tank farm and all major waste types are represented. Descriptions of the sampling and analysis methods have been given elsewhere (Huckaby et al. 1995, Huckaby et al. 1996), and references for specific data are available in the TCD. This is a revision of a report with the same title issued on March 1, 2000 (Stock and Huckaby 2000).

Stock, Leon M.; Huckaby, James L.

2000-10-31T23:59:59.000Z

330

Machining, Assembly, and Characterization of a Meso-Scale Double Shell Target  

SciTech Connect

Several issues related to the manufacture of precision meso-scale assemblies have been identified as part of an effort to fabricate an assembly consisting of machined polymer hemispherical shells and machined aerogel. The assembly, a double shell laser target, is composed of concentric spherical layers that were machined on a lathe and then assembled. This production effort revealed several meso-scale manufacturing techniques that worked well, such as the machining of aerogel with cutting tools to form low density structures, and the development of an assembly manipulator that allows control of the assembly forces to within a few milliNewtons. Limitations on the use of vacuum chucks for meso-scale components were also identified. Many of the lessons learned in this effort are not specific to double shell targets and may be relevant to the production of other meso-scale devices.

Bono, M J; Hibbard, R L

2003-10-21T23:59:59.000Z

331

Nuclear Shell Structure and Beta Decay I. Odd A Nuclei II. Even A Nuclei  

DOE R&D Accomplishments (OSTI)

In Part I a systematics is given of all transitions for odd A nuclei for which sufficiently reliable data are available. The allowed or forbidden characters of the transitions are correlated with the positions of the initial and final odd nucleon groups in the nuclear shell scheme. The nuclear shells show definite characteristics with respect to parity of the ground states. The latter is the same as the one obtained from known spins and magnetic moments in a one-particle interpretation. In Part II a systematics of the beta transitions of even-A nuclei is given. An interpretation of the character of the transitions in terms of nuclear shell structure is achieved on the hypothesis that the odd nucleon groups have the same structure as in odd-A nuclei, together with a simple coupling rule between the neutron and proton groups in odd-odd nuclei.

Mayer, M.G.; Moszkowski, S.A.; Nordheim, L.W.

1951-05-00T23:59:59.000Z

332

Effects of tensor interaction on pseudospin energy splitting and shell correction  

Science Conference Proceedings (OSTI)

In the framework of a Skyrme-Hartree-Fock approach combined with Bardeen-Cooper-Schrieffer (BCS) method, the role of the tensor force on the pseudospin energy splitting for tin isotope chain is investigated. The tensor force turns out to obviously affect the pseudospin energy splitting of the spin-unsaturated nuclei. Since the tensor force shifts the single-particle levels, it modifies the single-particle level density and the shell correction energy thereof. The influence of the tensor interaction on shell correction energy is considerable according to our analysis taking a magic nucleus {sup 132}Sn as well as a superheavy nucleus {sup 298}114 as examples. This modification of the shell correction energy due to the tensor component affects the stability of the superheavy nuclei.

Dong, J. M. [Research Center for Hadron and CSR Physics, Lanzhou University and Institute of Modern Physics of CAS, Lanzhou 730000 (China); Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000 (China); Graduate University of Chinese Academy of Sciences, Beijing 100049 (China); China Institute of Atomic Energy, P. O. Box 275 (10), Beijing 102413 (China); School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000 (China); Zuo, W. [Research Center for Hadron and CSR Physics, Lanzhou University and Institute of Modern Physics of CAS, Lanzhou 730000 (China); Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000 (China); School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000 (China); Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou, Lanzhou 730000 (China); Gu, J. Z. [China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413 (China); Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou, Lanzhou 730000 (China); Wang, Y. Z.; Zhang, X. Z. [China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413 (China); Cao, L. G. [Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000 (China)

2011-07-15T23:59:59.000Z

333

Challenges for a reliable shell model description of the neutrinoless double beta decay matrix elements  

SciTech Connect

Assuming that the neutrinos are Majorana particles and the neutrinoless double beta (0{nu}{beta}{beta}) decay is observed, a reliable 0{nu}{beta}{beta} matrix element is necessary to decide the neutrino mass hierarchy and the minimum neutrino mass. Many nuclear structure techniques, including the shell model, are presently used to calculate these matrix elements. In the last few years one could see a slow convergence of these results, but not yet at a level of 20 several shell model effective interactions and varying other parameters, finding results in a range that spans about 20In this contribution we describe challenges for obtaining reliable shell model 0{nu}{beta}{beta} matrix elements, with emphasis to {sup 76}Ge and {sup 82}Se decays.

Horoi, Mihai [Department of Physics, Central Michigan University, Mount Pleasant, Michigan, 48859 (United States)

2011-12-16T23:59:59.000Z

334

Analysis of field-performance data on shell-and-tube heat exchangers in geothermal service  

DOE Green Energy (OSTI)

Analysis of field performance data from a binary cycle test loop using geothermal brine and a hydrocarbon working fluid is reported. Results include test loop operational problems, and shell-and-tube heat exchanger performance factors such as overall heat transfer coefficients, film coefficients, pinch points, and pressure drops. Performance factors are for six primary heaters having brine in the tubes and hydrocarbon in the shells in counterflow, and for a condenser having cooling water in the tubes and hydrocarbon in the shell. Working fluids reported are isobutane, 90/10 isobutane/isopentane, and 80/20 isobutane/isopentane. Performance factors are for heating each working fluid at supercritical conditions in the vicinity of their critical pressure and temperature and condensing the same fluid.

Silvester, L.F.; Doyle, P.T.

1982-03-01T23:59:59.000Z

335

Analysis of leakage magnetic problems in shell-form power transformer  

Science Conference Proceedings (OSTI)

The principles of minimized magnetic energy and voltage equilibrium have been combined with the finite element method to solve the leakage magnetic field problems coupled with an unknown ampere-turn distribution in the shell-form power transformer. Based on the leakage magnetic field calculated, the eddy current and circulating current losses in the coils are further computed. The calculated results are consistent with measured values for a model of a shell-form transformer. Above principles are applied to the windings design of a 50MVA three-phase prototype shell-form power transformer. The calculated results show that the largest circulating current in strands of the low-voltage coils near two ends of each phase winding is greatly reduced to 11% from 98% of the rated current in each strand by placing the copper-shielding on these ends.

Cui Xiang; Yuan Jinsha [North China Electric Power Univ., Baoding, Hebei (China). Dept. of Electrical Engineering; Zhang Guoqiang; Zhang Yuanlu; Hu Qifan [Baoding Tian Wei Group Co., Ltd., Baoding, Hebei (China). Div. of Large Power Transformer

1997-03-01T23:59:59.000Z

336

THE FORMATION OF SHELL GALAXIES SIMILAR TO NGC 7600 IN THE COLD DARK MATTER COSMOGONY  

Science Conference Proceedings (OSTI)

We present new deep observations of 'shell' structures in the halo of the nearby elliptical galaxy NGC 7600, alongside a movie of galaxy formation in a cold dark matter (CDM) universe. The movie, based on an ab initio cosmological simulation, shows how continuous accretion of clumps of dark matter and stars creates a swath of diffuse circumgalactic structures. The disruption of a massive clump on a near-radial orbit creates a complex system of transient concentric shells which bare a striking resemblance to those of NGC 7600. With the aid of the simulation we interpret NGC 7600 in the context of the CDM model.

Cooper, Andrew P. [Max Planck Institut fuer Astrophysik, Karl-Schwarzschild-Str. 1, D-85741 Garching (Germany); Martinez-Delgado, David [Max Planck Institut fuer Astronomie, Koenigstuhl 17, D-69117 Heidelberg (Germany); Helly, John; Frenk, Carlos; Cole, Shaun [Institute for Computational Cosmology, Department of Physics, University of Durham, South Road, DH1 3LE Durham (United Kingdom); Crawford, Ken [Rancho del Sol Observatory, Camino, CA 95709 (United States); Zibetti, Stefano [Dark Cosmology Centre, Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, DK-2100 Copenhagen (Denmark); Carballo-Bello, Julio A. [Instituto de Astrofisica de Canarias, Via Lactea s/n, E-38205 La Laguna, Tenerife (Spain); Jay GaBany, R., E-mail: acooper@mpa-garching.mpg.de, E-mail: delgado@mpia-hd.mpg.de [Black Bird Observatory II, 5660 Brionne Drive, San Jose, CA 95118 (United States)

2011-12-10T23:59:59.000Z

337

Scaling laws, transient times and shell effects in helium induced nuclear fission  

E-Print Network (OSTI)

Fission excitation functions of He-3 and He-4 induced compound nuclei are shown to scale exactly according to the Bohr-Wheeler transition state prediction once the shell effects are accounted for. The presented method furthermore allows one to model-independently extract values for the shell effects which are in good agreement to those obtained from liquid-drop model calculations. The fact that no deviations from the transition state method have been observed within the experimentally investigated excitation energy regime allows one to assign an upper limit for the transient time of 10 zs.

Th. Rubehn; K. X. Jing; L. G. Moretto; L. Phair; K. Tso; G. J. Wozniak

1996-07-22T23:59:59.000Z

338

"Table A7. Shell Storage Capacity of Selected Petroleum Products by Census"  

U.S. Energy Information Administration (EIA) Indexed Site

Shell Storage Capacity of Selected Petroleum Products by Census" Shell Storage Capacity of Selected Petroleum Products by Census" " Region, Industry Group, and Selected Industries, 1991" " (Estimates in Thousand Barrels)" " "," "," "," "," ","Other","RSE" "SIC"," ","Motor","Residual"," ","Distillate","Row" "Code(a)","Industry Groups and Industry","Gasoline","Fuel Oil","Diesel","Fuel Oil","Factors" ,,"Total United States" ,"RSE Column Factors:",1,0.9,1,1.1 , 20,"Food and Kindred Products",38,1448,306,531,12.1 2011," Meat Packing Plants",1,229,40,13,13.2

339

Test procedures and instructions for single shell tank saltcake cesium removal with crystalline silicotitanate  

SciTech Connect

This document provides specific test procedures and instructions to implement the test plan for the preparation and conduct of a cesium removal test, using Hanford Single Shell Tank Saltcake from tanks 24 t -BY- I 10, 24 1 -U- 108, 24 1 -U- 109, 24 1 -A- I 0 1, and 24 t - S-102, in a bench-scale column. The cesium sorbent to be tested is crystalline siticotitanate. The test plan for which this provides instructions is WHC-SD-RE-TP-024, Hanford Single Shell Tank Saltcake Cesium Removal Test Plan.

Duncan, J.B.

1997-01-07T23:59:59.000Z

340

Expert Panel Recommendations for Hanford Double-Shell Tank Life Extension  

Science Conference Proceedings (OSTI)

Expert workshops were held in Richland in May 2001 to review the Hanford Double-Shell Tank Integrity Project and make recommendations to extend the life of Hanford's double-shell waste tanks. The workshop scope was limited to corrosion of the primary tank liner, and the main areas for review were waste chemistry control, tank inspection, and corrosion monitoring. Participants were corrosion experts from Hanford, Savannah River Site, Brookhaven National Laboratory, Pacific Northwest National Laboratory, and several consultants. This report describes the current state of the three areas of the program, the final recommendations of the workshop, and the rationale for their selection.

Stewart, Charles W.; Bush, Spencer H.; Berman, Herbert S.; Czajkowski, Carl J.; Divine, James R.; Posakony, Gerald J.; Johnson, A. B.; Elmore, Monte R.; Reynolds, D. A.; Anantatmula, Ramamohan P.; Sindelar, Robert L.; Zapp, Philip E.

2001-06-29T23:59:59.000Z

Note: This page contains sample records for the topic "royal dutch shell" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Preliminary engineering studies for the support shell of the outer tracker of the SDC detector  

Science Conference Proceedings (OSTI)

The Solenoidal Detector Collaboration (SDC) detector is in the conceptual design phase. ORNL is currently working with various sub-groups on the design of the outer tracker portion of the SDC detector. A major focus in the outer tracker design is the structure that mounts and supports the tracking elements. This structure must meet extreme requirements of alignment and stability while containing a minimum of material. This report describes the requirements, evaluations, and analyses that have been performed on the two options being explored; a cylindrical support shell and a modular support shell.

Vandergriff, D.H.; Mayhall, J.

1991-09-01T23:59:59.000Z

342

Validity of pair truncation of the nuclear shell model in {sup 46}Ca  

SciTech Connect

We study the validity of pair truncation of the nuclear shell model by using the semimagic nucleus {sup 46}Ca. We present low-lying states and their E2 transition rates based on both nucleon pair approximation (NPA) and exact shell-model (SM) calculations. We also calculate overlaps between wave functions of low-lying states calculated by using the NPA and those calculated by using the SM. Our calculated results show a remarkable agreement between the NPA results and the SM results, although the NPA is a drastic truncation of the SM.

Lei, Y.; Xu, Z. Y. [Department of Physics, Shanghai Jiao Tong University, Shanghai 200240 (China); Zhao, Y. M. [Department of Physics, Shanghai Jiao Tong University, Shanghai 200240 (China); Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000 (China); CCAST, World Laboratory, Post Office Box 8730, Beijing 100080 (China); Arima, A. [Department of Physics, Shanghai Jiao Tong University, Shanghai 200240 (China); Science Museum, Japan Science Foundation, 2-1 Kitanomaru-koen, Chiyoda-ku, Tokyo 102-0091 (Japan)

2009-12-15T23:59:59.000Z

343

Shell model calculation for Te and Sn isotopes in the vicinity of {sup 100}Sn  

SciTech Connect

New Shell Model calculations for even-even isotopes {sup 104-108}Sn and {sup 106,108}Te, in the vicinity of {sup 100}Sn have been performed. The calculations have been carried out using the windows version of NuShell-MSU. The two body matrix elements TBMEs of the effective interaction between valence nucleons are obtained from the renormalized two body effective interaction based on G-matrix derived from the CD-bonn nucleon-nucleon potential. The single particle energies of the proton and neutron valence spaces orbitals are defined from the available spectra of lightest odd isotopes of Sb and Sn respectively.

Yakhelef, A.; Bouldjedri, A. [Physics Department, Farhat abbas University, Setif (Algeria); Physics Department, Hadj Lakhdar University, Batna (Algeria)

2012-06-27T23:59:59.000Z

344

L- and M-shell absorption measurements of radiatively heated Fe plasma  

SciTech Connect

Measurements of iron-plasma absorption spectrum over 150-1200 eV photon energy range were reported at temperature T = (72 {+-} 4) eV. The electron temperature was diagnosed with the absorption spectrum of aluminum mixed with iron. The density was not diagnosed directly but obtained from a radiative hydrodynamic simulation with the Multi-1D code. The broad photon energy range enables simultaneous observation of the L-shell and M-shell transitions that dominate the radiation transport at this temperature. The spectrally resolved transmission data were compared to the detailed-configuration-accounting model calculations and reasonable agreement was found.

Zhang Jiyan; Li Hang; Zhao Yang; Xiong Gang; Yuan Zheng; Zhang Haiying; Yang Guohong; Yang Jiamin; Liu Shenye; Jiang Shaoen; Ding Yongkun; Zhang Baohan; Zheng Zhijian [Research Center of Laser Fusion, P. O. Box 919-986, Mianyang 621900 (China); Xu Yan; Meng Xujun; Yan Jun [Institute of Applied Physics and Computational Mathematics, Beijing 100088 (China)

2012-11-15T23:59:59.000Z

345

A piezoelectric solid shell element based on a mixed variational formulation for geometrically linear and nonlinear applications  

Science Conference Proceedings (OSTI)

The paper is focused on a piezoelectric solid shell finite element formulation. A geometrically nonlinear theory allows large deformations and includes stability problems. The formulation is based on a variational principle of the Hu-Washizu type including ... Keywords: Finite element method, Mixed formulation, Piezoelectricity, Smart structures, Solid shell element

Sven Klinkel; Werner Wagner

2008-01-01T23:59:59.000Z

346

Importance of open-shell effects in adhesion at metal-ceramic interfaces Emily A. Jarvis and Emily A. Carter  

E-Print Network (OSTI)

Importance of open-shell effects in adhesion at metal-ceramic interfaces Emily A. Jarvis and Emily enhanced adhesion between oxide ceramics and conducting metals via promoting open-shell electronic The need to bond dissimilar materials to one another is pervasive in modern industry and medicine. Metals

Carter, Emily A.

347

Synthesis of Mn{sub 2}O{sub 3} homogeneous core/hollow-shell structures with excellent adsorption performance  

Science Conference Proceedings (OSTI)

Large-scale Mn{sub 2}O{sub 3} homogeneous core/hollow-shell structures with cube-shaped and dumbbell-shaped morphologies have been synthesized trough a facile and low-cost method. The microscopy analyses indicate that the core-shell microcubes have an average edge length of 2.5 {mu}m with a shell thickness of about 150 nm, and the core-shell microdumbbells were formed with a length of about 3 {mu}m and shell thickness of about 160 nm. The possible formation mechanism was discussed on the basis of transmission electron microscopy observations. The novel homogeneous core/hollow-shell structures were found to exhibit excellent performance in wastewater treatment. - Graphical abstract: A simple method is described for fabrication of Mn{sub 2}O{sub 3} homogeneous core/hollow-shell structures and the as-prepared materials showed a good ability to remove an organic pollutant in waste water. Highlights: Black-Right-Pointing-Pointer The Mn{sub 2}O{sub 3} homogeneous core/hollow-shell structures were successfully prepared. Black-Right-Pointing-Pointer A simple and high yield method was employed to fabricate such novel structure. Black-Right-Pointing-Pointer The products showed a good ability to remove an organic pollutant in waste water.

Cao Jie, E-mail: candj@mail.ustc.edu.cn [Anhui Provincial Key Lab of Photonics Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031 (China); Hefei National Laboratory for Physical Science at Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026 (China); Mao Qinghe [Anhui Provincial Key Lab of Photonics Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031 (China); Qian Yitai [Hefei National Laboratory for Physical Science at Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026 (China)

2012-07-15T23:59:59.000Z

348

HANFORD DOUBLE SHELL TANK THERMAL AND SEISMIC PROJECT SENSITIVITY OF DOUBLE SHELL DYNAMIC RESPONSE TO THE WASTE ELASTIC PROPERTIES  

SciTech Connect

The purpose of this study was to determine the sensitivity of the dynamic response of the Hanford double-shell tanks (DSTs) to the assumptions regarding the constitutive properties of the contained waste. In all cases, the waste was modeled as a uniform linearly elastic material. The focus of the study was on the changes in the modal response of the tank and waste system as the extensional modulus (elastic modulus in tension and compression) and shear modulus of the waste were varied through six orders of magnitude. Time-history analyses were also performed for selected cases and peak horizontal reaction forces and axial stresses at the bottom of the primary tank were evaluated. Because the analysis focused on the differences in the responses between solid-filled and liquid-filled tanks, it is a comparative analysis rather than an analysis of record for a specific tank or set of tanks. The shear modulus was varied between 4 x 10{sup 3} Pa and 4.135 x 10{sup 9} Pa. The lowest value of shear modulus was sufficient to simulate the modal response of a liquid-containing tank, while the higher values are several orders of magnitude greater than the upper limit of expected properties for tank contents. The range of elastic properties used was sufficient to show liquid-like response at the lower values, followed by a transition range of semi-solid-like response to a clearly identifiable solid-like response. It was assumed that the mechanical properties of the tank contents were spatially uniform. Because sludge-like materials are expected only to exist in the lower part of the tanks, this assumption leads to an exaggeration of the effects of sludge-like materials in the tanks. The results of the study show that up to a waste shear modulus of at least 40,000 Pa, the modal properties of the tank and waste system are very nearly the same as for the equivalent liquid-containing tank. This suggests that the differences in critical tank responses between liquid-containing tanks and tanks containing sludge-like materials having a shear modulus not exceeding 40,000 Pa are unlikely to be greater than those due to the uncertainties involved in the definition of the design ground motion or in the properties of the tank-waste system. This is the fundamental conclusion of the study. The study also shows that increasing the waste extensional modulus and shear modulus does not lead to increased mass participation at the impulsive frequency of the liquid-containing system. Instead, increasing the waste stiffness eventually leads to fundamental changes in the modal properties including an increase in the fundamental system frequency.

MACKEY TC; ABATT FG; JOHNSON KI

2009-01-16T23:59:59.000Z

349

The opinions expressed in this paper do not necessarily reflect the position of Fondazione Eni Enrico MatteiLessons from the Polder: Is Dutch CO2-Taxation Optimal? Summary  

E-Print Network (OSTI)

a climate change perspective. A tax on fuels and the so-called regulatory energy tax since 1996 are examples of indirect and non-uniform taxation of emissions. The overall tax base and rate structure corroborates recent theoretical findings that heterogeneity in production processes and transaction costs may justify optimal departures from the Pigovian corrective tax rule. Surprisingly, the Dutch revenue-raising tax matches the (modified) Pigovian policy prescription rather well, whereas the regulatory energy tax mainly follows the revenue raising Ramsey logic. Further improvements of the energy tax structure are also discussed, such as targeting the energy tax base and linking the tax rate more precisely to fuel characteristics

Herman R. J. Vollebergh; Nota Di Lavoro; Herman Vollebergh

2004-01-01T23:59:59.000Z

350

Epitaxial growth and photochemical annealing of graded CdS/ZnS shells on colloidal CdSe nanorods  

SciTech Connect

We report the preparation and structural characterization of core/shell CdSe/CdS/ZnS nanorods. A graded shell of larger band gap is grown around CdSe rods using trioctylphosphine oxide as a surfactant. Interfacial segregation is used to preferentially deposit CdS near the core, providing relaxation of the strain at the core/shell interface. The reported synthesis allows for variation of the shell thickness between one and six monolayers, on core nanorods ranging from aspect ratios of 2:1 to 10:1. After an irreversible photochemical annealing process, the core/shell nanorods have increased quantum efficiencies and are stable in air under visible or UV excitation. In addition to their robust optical properties, these samples provide an opportunity for the study of the evolution of epitaxial strain as the shape of the core varies from nearly spherical to nearly cylindrical.

Manna, Liberato; Scher, Erik C.; Li, Liang-shi; Alivisatos, A. Paul

2002-02-14T23:59:59.000Z

351

Carbon-Silicon Core-Shell Nanowires as High Capacity Electrode for Lithium  

E-Print Network (OSTI)

Carbon-Silicon Core-Shell Nanowires as High Capacity Electrode for Lithium Ion Batteries Li lithium battery electrodes. Amorphous silicon was coated onto carbon nanofibers to form a core during lithium cycling and can function as a mechanical support and an efficient electron conducting

Cui, Yi

352

A Shell/3d Modeling Technique For Delaminations In Composite Laminates  

E-Print Network (OSTI)

A shell/3D modeling technique was developed for which a local solid finite element model is used only in the immediate vicinity of the delamination front. The goal was to combine the accuracy of the full three-dimensional solution with the computational efficiency of a plate or shell finite element model. Multi-point constraints provide a kinematically compatible interface between the local 3D model and the global structural model which has been meshed with plate or shell finite elements. For simple double cantilever beam (DCB), end notched flexure (ENF), and single leg bending (SLB) specimens, mixed mode energy release rate distributions were computed across the width from nonlinear finite element analyses using the virtual crack closure technique. The analyses served to test the accuracy of the shell/3D technique for the pure mode I case (DCB), mode II case (ENF) and a mixed mode I/II case (SLB). Specimens with a unidirectional layup where the delamination is located between two 0° pl...

Ronald Krueger

1999-01-01T23:59:59.000Z

353

Preliminary Heat Transfer Studies for the Double Shell Tanks (DST) Transfer Piping  

SciTech Connect

Heat transfer studies were made to determine the thermal characteristics of double-shell tank transfer piping under both transient and steady-state conditions. A number of design and operation options were evaluated for this piping system which is in its early design phase.

HECHT, S.L.

2000-02-15T23:59:59.000Z

354

Crab Shells as Sustainable Templates from Nature for Nanostructured Battery Electrodes  

E-Print Network (OSTI)

Crab Shells as Sustainable Templates from Nature for Nanostructured Battery Electrodes Hongbin Yao materials issues for enabling next-generation high capacity lithium ion batteries for portable electronics to prepare nanostructured battery electrode materials, we are inspired by the diversity of natural materials

Cui, Yi

355

Preliminary tank characterization report for single-shell tank 241-BY-109: best-basis inventory  

Science Conference Proceedings (OSTI)

An effort is underway to provide waste inventory estimates that will serve as standard characterization source terms for the various waste management activities. As part of this effort, an evaluation of available information for single-shell tank 241-BY-109 was performed, and a best-basis inventory was established. This work follows the methodology that was established by the standard inventory task.

Kupfer, M.J.

1997-09-02T23:59:59.000Z

356

P-SHELL {Lambda} HYPERNUCLEI AND THE {Lambda}N EFFECTIVE INTERACTION  

SciTech Connect

Empirical data on the spectra of light hypernuclei, especially the data from recent {gamma}-ray experiments, is used to constrain the parameters which govern the P{sub N}s{sub {Lambda}} and p{sub N}p{sub {Lambda}}j two-body matrix elements that enter into shell-model calculations.

MILLENER,D.J.

2000-12-02T23:59:59.000Z

357

Ultrasonic Examination of Double-Shell Tank 241-AN-102 Examination Completed July 2008.  

Science Conference Proceedings (OSTI)

AREVA Federal Services LLC (AFS), under a contract from CH2M Hill Hanford Group (CH2M Hill), has performed an ultrasonic examination of selected portions of Double-Shell Tank 241-AN-102. PNNL is responsible for preparing a report(s) that describes the results of the AFS ultrasonic examinations.

Pardini, Allan F.; Weier, Dennis R.; Anderson, Kevin K.

2008-08-28T23:59:59.000Z

358

Ultrasonic Examination of Double-Shell Tank 241-AW-105 Examination Completed April 2009.  

SciTech Connect

AREVA Federal Services LLC (AFS), under a contract from Washington River Protection Solutions (WRPS), has performed an ultrasonic examination of selected portions of Double-Shell Tank 241-AW-105. PNNL is responsible for preparing a report(s) that describes the results of the AFS ultrasonic examinations.

Pardini, Allan F.; Weier, Dennis R.; Anderson, Kevin K.; Hathaway, John E.

2009-05-31T23:59:59.000Z

359

Ultrasonic Examination of Double-Shell Tank 241-AY-102. Examination Completed January 2007  

SciTech Connect

AREVA NC Inc. (AREVA), under a contract from CH2M Hill Hanford Group (CH2M Hill), has performed an ultrasonic examination of selected portions of Double-Shell Tank 241-AY-102. PNNL is responsible for preparing a report(s) that describes the results of the AREVA ultrasonic examinations.

Pardini, Allan F.; Weier, Dennis R.

2007-05-01T23:59:59.000Z

360

Ultrasonic Examination of Double-Shell Tank 241-AW-106 Examination Completed July 2009.  

SciTech Connect

AREVA Federal Services LLC (AFS), under a contract from Washington River Protection Solutions (WRPS), has performed an ultrasonic examination of selected portions of Double-Shell Tank 241-AW-106. PNNL is responsible for preparing a report(s) that describes the results of the AFS ultrasonic examinations.

Pardini, Allan F.; Weier, Dennis R.; Anderson, Kevin K.; Hathaway, John E.

2009-08-28T23:59:59.000Z

Note: This page contains sample records for the topic "royal dutch shell" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Ultrasonic Examination of Double-Shell Tank 241-AN-106. Completed June 2007  

Science Conference Proceedings (OSTI)

AREVA NC Inc. (AREVA), under a contract from CH2M Hill Hanford Group (CH2M Hill), has performed an ultrasonic examination of selected portions of Double-Shell Tank 241-AN-106. PNNL is responsible for preparing a report(s) that describes the results of the AREVA ultrasonic examinations.

Pardini, Allan F.; Weier, Dennis R.

2007-07-24T23:59:59.000Z

362

Ultrasonic Examination of Double-Shell Tank 241-AY-101. Examination Completed March 2007.  

SciTech Connect

AREVA NC Inc. (AREVA), under a contract from CH2M Hill Hanford Group (CH2M Hill), has performed an ultrasonic examination of selected portions of Double-Shell Tank 241-AY-101. PNNL is responsible for preparing a report(s) that describes the results of the AREVA ultrasonic examinations.

Pardini, Allan F.; Weier, Dennis R.

2007-06-01T23:59:59.000Z

363

Ultrasonic Examination of Double-Shell Tank 241-AW-101 Examination Completed February 2009.  

Science Conference Proceedings (OSTI)

AREVA Federal Services LLC (AFS), under a contract from Washington River Protection Solutions (WRPS), has performed an ultrasonic examination of selected portions of Double-Shell Tank 241-AW-101. PNNL is responsible for preparing a report(s) that describes the results of the AFS ultrasonic examinations.

Pardini, Allan F.; Weier, Dennis R.; Anderson, Kevin K.

2009-03-18T23:59:59.000Z

364

The off shell [rho][endash][omega] mixing in the QCD sum rules  

SciTech Connect

The q[sup 2] dependence of the [rho] - [omega] mixing amplitude is analyzed with the use of the QCD sum rules and the dispersion relation. In going off shell the mixing decreases, changes sign at q[sup 2] [approx equal] 0.4 m[sub [rho

Hatsuda, T. (Washington Univ., Seattle, WA (United States). Dept. of Physics); Henley, E.M. (Washington Univ., Seattle, WA (United States). Dept. of Physics Washington Univ., Seattle, WA (United States). Inst. for Nuclear Theory); Meissner, T. (Washington Univ., Seattle, WA (United States). Inst. for Nuclear Theory); Krein, G. (Instituto de Fisica Teorica (IFT), Sao Paulo, SP (Brazil))

1993-01-01T23:59:59.000Z

365

Rapid disappearance of shell effects in the fission of transfermium nuclei  

Science Conference Proceedings (OSTI)

In the last fifteen years we have learned that nuclear shells have a very broad and pervasive impact on the fission process. In the first few decades after the discovery of nuclear fission, the nucleus was treated as a drop of liquid with smoothly varying attractive and repulsive forces. Although this model still forms the underlying basis for fission, we also observe large effects from the superimposition of shell corrections derived from coupling the quantum states of individual nucleons. The consequences of single-particle coupling on the fission process can be striking and may often overshadow that originating from the intrinsic liquid-drop component. Here, we point out several major features attributable to shell effects in the spontaneous fission (SF) of the lighter actinides, the sudden transition to symmetric fission in the fermium isotopes, and finally new experimental information indicating another transition in the SF of transfermium nuclides due to the disappearance of shell perturbations. In each transition, the abruptness is surprising, and for the moment, such rapid changes in fission behavior lack a theoretical rationale.

Hulet, E.K.

1983-01-01T23:59:59.000Z

366

TPR-00-14 SEMICLASSICAL CALCULATION OF SHELL EFFECTS IN DEFORMED NUCLEI  

E-Print Network (OSTI)

We summarize recent work in which the shell effect, which causes the onset of the mass asymmetry in nuclear fission, could be explained semiclassically in the framework of the periodic orbit theory. We also present new results for the inclusion of a spin-orbit interaction in the semiclassical calculation of the level density. 1

unknown authors

2000-01-01T23:59:59.000Z

367

SUPERGIANT SHELLS AND MOLECULAR CLOUD FORMATION IN THE LARGE MAGELLANIC CLOUD  

Science Conference Proceedings (OSTI)

We investigate the influence of large-scale stellar feedback on the formation of molecular clouds in the Large Magellanic Cloud (LMC). Examining the relationship between H I and {sup 12}CO(J = 1-0) in supergiant shells (SGSs), we find that the molecular fraction in the total volume occupied by SGSs is not enhanced with respect to the rest of the LMC disk. However, the majority of objects ({approx}70% by mass) are more molecular than their local surroundings, implying that the presence of a supergiant shell does on average have a positive effect on the molecular gas fraction. Averaged over the full SGS sample, our results suggest that {approx}12%-25% of the molecular mass in supergiant shell systems was formed as a direct result of the stellar feedback that created the shells. This corresponds to {approx}4%-11% of the total molecular mass of the galaxy. These figures are an approximate lower limit to the total contribution of stellar feedback to molecular cloud formation in the LMC, and constitute one of the first quantitative measurements of feedback-triggered molecular cloud formation in a galactic system.

Dawson, J. R.; Dickey, John M. [School of Mathematics and Physics, University of Tasmania, Sandy Bay Campus, Churchill Avenue, Sandy Bay, TAS 7005 (Australia)] [School of Mathematics and Physics, University of Tasmania, Sandy Bay Campus, Churchill Avenue, Sandy Bay, TAS 7005 (Australia); McClure-Griffiths, N. M. [Australia Telescope National Facility, CSIRO Astronomy and Space Science, Marsfield NSW 2122 (Australia)] [Australia Telescope National Facility, CSIRO Astronomy and Space Science, Marsfield NSW 2122 (Australia); Wong, T. [Astronomy Department, University of Illinois, Urbana, IL 61801 (United States)] [Astronomy Department, University of Illinois, Urbana, IL 61801 (United States); Hughes, A. [Max-Planck-Institut fuer Astronomie, Koenigstuhl 17, D-69117, Heidelberg (Germany)] [Max-Planck-Institut fuer Astronomie, Koenigstuhl 17, D-69117, Heidelberg (Germany); Fukui, Y. [Department of Physics and Astrophysics, Nagoya University, Chikusa-ku, Nagoya (Japan)] [Department of Physics and Astrophysics, Nagoya University, Chikusa-ku, Nagoya (Japan); Kawamura, A., E-mail: joanne.dawson@utas.edu.au [National Astronomical Observatory of Japan, Tokyo 181-8588 (Japan)

2013-01-20T23:59:59.000Z

368

Nuclear shell structure and response toward the limits of mass, temperature and isospin  

E-Print Network (OSTI)

We present a short overview of our recent theoretical developments aiming at the description of exotic nuclear phenomena to be reached and studied at the next-generation radioactive beam facilities. Applications to nuclear shell structure and response of nuclei at the limits of their existence, with a special focus on the physics cases of astrophysical importance, are discussed.

Litvinova, E; Fang, D -L; Marketin, T; Ring, P; Tselyaev, V I; Zegers, R G T

2013-01-01T23:59:59.000Z

369

Electronic anisotropy between open shell atoms in first and second order perturbation theory  

E-Print Network (OSTI)

. For example, the inter- action between an oxygen atom in the 3 P ground state with a helium atom is determined by an effective potential acting in the subspace consisting of three P substates. These substates are defined in a space-fixed frame with the origin on the open shell atom. Hence, the substates are not coupled

Krems, Roman

370

Engineering Task Plan for the Ultrasonic Inspection of Hanford Double Shell Tanks (DST) FY2000  

SciTech Connect

This document facilitates the ultrasonic examination of Hanford double-shell tanks. Included are a plan for engineering activities (individual responsibilities), plan for performance demonstration testing, and a plan for field activities (tank inspection). Also included are a Statement of Work for contractor performance of the work and a protocol to be followed should tank flaws that exceed the acceptance criteria be discovered.

JENSEN, C.E.

2000-01-10T23:59:59.000Z

371

Project EARTH-12-SHELL1: Global expression of climatic and palaeoceanographic events in black shales  

E-Print Network (OSTI)

shales: generation of new high-resolution records from the Jurassic of the Neuquen Basin, Argentina and is part of a larger Shell-supported research project on shale-gas shale (subject to contract) In the last palaeoclimatic and palaeoceanographic change from shale and mudrock successions in NW Europe. Much

Henderson, Gideon

372

The Royal Society & The Royal Academy of Engineering Nanoscience and nanotechnologies | July 2004 | iii Summary vii  

E-Print Network (OSTI)

on the use of a 3 in. square position-sensitive photomultiplier (PSPMT) to view a two- dimensional segmented with an adjust- able aperture pinhole collimator and a 676-element two- dimensional segmented CsI(Tl) crystal isolated segmented detector crystals (see Fig. 3a and 3b). Previous measurements made using arrays of small

Mosegaard, Klaus

373

Structure of unstable nuclei around N = 28 described by a shell model with the monopole-based universal interaction  

SciTech Connect

The structure of exotic nuclei around N = 28 is investigated in the sd-pf shell-model space using a new effective interaction. The cross-shell part of the interaction is provided by the monopole-based universal interaction which has been successful in accounting for single-particle evolution in several mass regions. Focusing on the nuclear structure that is sensitive to the shell evolution, we show successful results for the proton-hole states in K isotopes and large deformation in {sup 42}Si. The results demonstrate that the present scheme may be a promising way for constructing an effective interaction for other mass regions.

Utsuno, Yutaka [Advanced Science Research Center, Japan Atomic Energy Agency (Japan); Otsuka, Takaharu [Department of Physics, University of Tokyo (Japan); National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing MI 48824 (United States); Brown, B. Alex [Department of Physics and Astronomy, Michigan State University, East Lansing MI 48824 (United States); National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing MI 48824 (United States); Honma, Michio [Center for Mathematical Sciences, University of Aizu, Ikki-machi, Aizu-Wakamatsu, Fukushima 965-8580 (Japan); Mizusaki, Takahiro [Institute for National Sciences, Senshu University, Tokyo, 101-8425 (Japan)

2011-05-06T23:59:59.000Z

374

Graded index and randomly oriented core-shell silicon nanowires with broadband and wide angle antireflection for photovoltaic cell applications  

E-Print Network (OSTI)

Antireflection with broadband and wide angle properties is important for a wide range of applications on photovoltaic cells and display. The SiOx shell layer provides a natural antireflection from air to the Si core absorption layer. In this work, we have demonstrated the random core-shell silicon nanowires with both broadband (from 400nm to 900nm) and wide angle (from normal incidence to 60\\degree) antireflection characteristics within AM1.5 solar spectrum. The graded index structure from the randomly oriented core-shell (Air/SiOx/Si) nanowires may provide a potential avenue to realize a broadband and wide angle antireflection layer.

Pignalosa, P; Qiao, L; Tseng, M; Yi, Yasha

2011-01-01T23:59:59.000Z

375

EVOLUTION OF THE WATER MASER EXPANDING SHELL IN W75N VLA 2  

Science Conference Proceedings (OSTI)

We present Very Long Baseline Interferometry (VLBI) observations of 22 GHz H{sub 2}O masers in the high-mass star-forming region of W75N, carried out with VLBI Exploration of Radio Astrometry (VERA) for three epochs in 2007 with an angular resolution of {approx}1 mas. We detected H{sub 2}O maser emission toward the radio jet in VLA 1 and the expanding shell-like structure in VLA 2. The spatial distribution of the H{sub 2}O masers detected with VERA and measured proper motions around VLA 1 and VLA 2 are similar to those found with previous VLBI observations in epochs 1999 and 2005, with the masers in VLA 1 mainly distributed along a linear structure parallel to the radio jet and, on the other hand, forming a shell-like structure around VLA 2. We have made elliptical fits to the VLA 2 H{sub 2}O maser shell-like structure observed in the different epochs (1999, 2005, and 2007), and found that the shell is still expanding eight years after its discovery. From the difference in the size of the semi-major axes of the fitted ellipses in epochs 1999 ({approx_equal}71 {+-} 1 mas), 2005 ({approx_equal}97 {+-} 3 mas), and 2007 ({approx_equal}111 {+-} 1 mas), we estimate an average expanding velocity of {approx}5 mas yr{sup -1}, similar to the proper motions measured in the individual H{sub 2}O maser features. A kinematic age of {approx}20 yr is derived for this structure. In addition, our VERA observations indicate an increase in the ellipticity of the expanding shell around VLA 2 from epochs 1999 to 2007. In fact, the elliptical fit of the VERA data shows a ratio of the minor and major axes of {approx}0.6, in contrast with an almost circular shape for the shell detected in 1999 and 2005 (b/a {approx} 0.9). This suggests that we are probably observing the formation of a jet-driven H{sub 2}O maser structure in VLA2, evolving from a non-collimated pulsed-outflow event during the first stages of evolution of a massive young stellar object (YSO). This may support predictions made earlier by other authors on this issue, consistent with recent magnetohydrodynamical simulations. We discuss possible implications of our results in the study of the first stages of evolution of massive YSOs.

Kim, Jeong-Sook; Kim, Sang Joon [School of Space Science, Kyunghee University, Seocheon-dong, Giheung-si, Gyeonggi-do, 446-701 (Korea, Republic of)] [School of Space Science, Kyunghee University, Seocheon-dong, Giheung-si, Gyeonggi-do, 446-701 (Korea, Republic of); Kim, Soon-Wook [Korea Astronomy and Space Science Institute, 776 Daedeokdaero, Yuseong, Daejeon 305-348 (Korea, Republic of)] [Korea Astronomy and Space Science Institute, 776 Daedeokdaero, Yuseong, Daejeon 305-348 (Korea, Republic of); Kurayama, Tomoharu [Graduate School of Science and Engineering, Kagoshima University, 1-21-35 Korimoto, Kagoshima, Kagoshima 890-0065 (Japan)] [Graduate School of Science and Engineering, Kagoshima University, 1-21-35 Korimoto, Kagoshima, Kagoshima 890-0065 (Japan); Honma, Mareki [National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588 (Japan)] [National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588 (Japan); Sasao, Tesuo [Yaeyama Star Club, Ookawa, Ishigaki, Okinawa 904-0022 (Japan)] [Yaeyama Star Club, Ookawa, Ishigaki, Okinawa 904-0022 (Japan); Surcis, Gabriele [Joint Institute for VLBI in Europe, Postbus 2, 7990 AA Dwingeloo (Netherlands)] [Joint Institute for VLBI in Europe, Postbus 2, 7990 AA Dwingeloo (Netherlands); Canto, Jorge [Instituto de Astronomia (UNAM), Apartado 70-264, 04510 Mexico D. F. (Mexico)] [Instituto de Astronomia (UNAM), Apartado 70-264, 04510 Mexico D. F. (Mexico); Torrelles, Jose M., E-mail: evony@kasi.re.kr, E-mail: skim@kasi.re.kr [Instituto de Ciencias del Espacio (CSIC)-UB/IEEC, Universitat de Barcelona, Marti i Franques 1, E-08028 Barcelona (Spain)

2013-04-10T23:59:59.000Z

376

Questions and Answers - Why do the electron shells begin being named with  

NLE Websites -- All DOE Office Websites (Extended Search)

the elementsget their symbols? the elements<br>get their symbols? Previous Question (How do the elements get their symbols?) Questions and Answers Main Index Next Question (Was "beauty" a quark name they used in the past?) Was "beauty" a quark namethey used in the past? Why do the electron shells begin being named with K, L, M, N, and not with A, B, C? The names of the electron shells come from a fellow named Charles G. Barkla, a spectroscopist who studied the X-rays that are emitted by atoms when they are hit with high energy electrons. He noticed that atoms appeared to emit two types of X-rays. The two types of X-rays differed in energy and Barkla originally called the higher energy X-ray type A and the lower energy X-ray type B. He later renamed these two types K and L since

377

Synthesis of a high-yield activated carbon by air gasification of macadamia nut shell charcoal  

Science Conference Proceedings (OSTI)

Macadamia nut shell charcoal was heated in an inert environment to temperatures above 1000 K (carbonized), reacted with oxygen (Po{sub 2} = 2.68--11.3 kPa) at temperatures between 525 and 586 K (oxygenated), and heated again in an inert environment to temperatures above 1000 K (activated) to produce an activated carbon. Carbons produced by this process possess surface areas and iodine numbers in the range of 400--550. Overall yields of these carbons (based on the dry, raw macadamia nut shell feed) ranged from 24 to 30 wt %. Under the conditions employed in this work, the rates of chemisorption and gasification were not mass transfer limited. Initially, the gasification reaction was first-order with respect to oxygen concentration but became independent of oxygen concentration as the surface sites of the carbon became saturated with oxygen.

Dai, X.; Antal, M.J. Jr. [Univ. of Hawaii at Manoa, Honolulu, HI (United States)

1999-09-01T23:59:59.000Z

378

Approximate analysis of the temperature induced stresses and deformations of composite shells  

Science Conference Proceedings (OSTI)

In this paper simple formulas are presented which can be used to estimate the response of composite plates and shells to hygrothermal loads. The layup of the shell can be arbitrary (i.e., it can be symmetric or unsymmetric, balanced or unbalanced). The formulas serve two purposes. First, they can be used to calculate directly the stresses, strains, and displacements caused by a temperature and a moisture gradient. Second, the formulas can be used to determine the 'effective' thermal and moisture expansion coefficients which are the parameters needed in more accurate numerical (FEM) calculations. The accuracies of the approximate formulas were assessed by sample problems. In these problems the hygrothermal deformations of cylinders and cylindrical segments were calculated by the present approximate formulas and by an exact, three-dimensional analysis. The results of the exact and approximate methods were compared. These comparisons showed that the approximate formulas yield the deformations with a high degree of accuracy. 18 refs.

Kollar, L.P. (Stanford Univ., Stanford, CA (United States))

1994-01-01T23:59:59.000Z

379

Petawatt-laser direct heating of uniformly imploded deuterated-polystyrene shell target  

Science Conference Proceedings (OSTI)

A uniformly imploded deuterated polystyrene (CD) shell target is fast-heated by a Petawatt (PW) laser without cone guide. The best illumination timing is found to be in a narrow region around 80{+-}20 picoseconds from the onset of the stagnation phase, where thermal neutrons are enhanced four to five times by the PW laser of energy less than 10% of the implosion laser. The timing agrees with the timings of enhancement of the x-ray emission from the core and reduction of the bremsstrahlung radiation from scattered hot electrons. The PW laser, focused to the critical density point, generates the energetic electrons within as narrow an angle as 30 deg., which then heats the imploded CD shell to enhance thermal neutrons. These results first demonstrate that the PW laser directly heats the imploded core without any conelike laser guide.

Kitagawa, Yoneyoshi; Akamatsu, Shin; Sakamoto, Wataru; Tanaka, Kazuo A.; Kodama, Ryosuke; Nishimura, Hiroaki; Inubushi, Yuichi; Nakai, Mitsuo; Watari, Takeshi; Norimatsu, Takayoshi; Sunahara, Atsushi [Institute of Laser Engineering, Osaka University, Suita, Osaka 565-0871 (Japan); Sentoku, Yasuhiko [Department of Physics, University of Nevada, Reno, Nevada 89506 (United States)

2005-01-01T23:59:59.000Z

380

Tank characterization report for Double-Shell Tank 241-AP-103  

SciTech Connect

This document provides the characterization information and interprets the data for Double-Shell Tank AP-103. The results of the analyses have been compared to the dangerous waste codes in the Washington Dangerous Waste Regulations (WAC 173-303). This assessment was conducted by comparing tank analyses against dangerous waste characteristics (D waste codes) and against state waste codes. It did not include checking tank analyses against U, P, F, or K waste codes since application of these codes is dependent on the source of the waste and not on particular constituent concentrations. The results indicate that the waste in this tank is adequately described in the Dangerous Waste Permit Application for the Double-Shell Tank System.

DeLorenzo, D.S.; DiCenso, A.T.; Amato, L.C.; Franklin, J.D.; Lambie, R.W. [Los Alamos Technical Associates, Inc., Kennewick, WA (United States); Simpson, B.C. [Westinghouse Hanford Co., Richland, WA (United States)

1994-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "royal dutch shell" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Large scale shell model calculations for even-even $^{62-66}$Fe isotopes  

E-Print Network (OSTI)

The recently measured experimental data of Legnaro National Laboratories on neutron rich even isotopes of $^{62-66}$Fe with A=62,64,66 have been interpreted in the framework of large scale shell model. Calculations have been performed with a newly derived effective interaction GXPF1A in full $\\it{fp}$ space without truncation. The experimental data is very well explained for $^{62}$Fe, satisfactorily reproduced for $^{64}$Fe and poorly fitted for $^{66}$Fe. The increasing collectivity reflected in experimental data when approaching N=40 is not reproduced in calculated values. This indicates that whereas the considered valence space is adequate for $^{62}$Fe, inclusion of higher orbits from $\\it{sdg}$ shell is required for describing $^{66}$Fe.

P. C. Srivastava; I. Mehrotra

2009-07-23T23:59:59.000Z

382

1D Scaling with Ablation for K-Shell Radiation from Stainless Steel Wire Arrays  

Science Conference Proceedings (OSTI)

A 1D Lagrangian magnetohydrodynamic z-pinch simulation code is extended to include wire ablation. The plasma transport coefficients are calibrated to reproduce the K-shell yields measured on the Z generator for three stainless steel arrays of diameter 55 mm and masses ranging from 1.8 to 2.7 mg. The resulting 1D scaling model is applied to a larger SS array (65 mm and 2.5 mg) on the refurbished Z machine. Simulation results predict a maximum K-shell yield of 77 kJ for an 82 kV charging voltage. This maximum drops to 42 kJ at 75 kV charging. Neglecting the ablation precursor leads to a {approx}10% change in the calculated yield.

Giuliani, J. L.; Thornhill, J. W.; Dasgupta, A.; Davis, J. [Plasma Physics Division, Naval Research Laboratory, Washington DC 20375 (United States); Clark, R. W. [Berkeley Research Associates, Beltsville Maryland 20705 (United States); Jones, B.; Cuneo, M.; Coverdale, C. A. [Sandia National Laboratories, Albuquerque NM 87545 (United States); Deeney, C. [National Nuclear Security Administration, Washington DC 20585 (United States)

2009-01-21T23:59:59.000Z

383

Multiscaling in Hall-Magnetohydrodynamic Turbulence: Insights from a Shell Model  

E-Print Network (OSTI)

We show that a shell-model version of the three-dimensional Hall-magnetohydrodynamic (3D Hall-MHD) equations provides a natural theoretical model for investigating the multiscaling behaviors of velocity and magnetic structure functions. We carry out extensive numerical studies of this shell model, obtain the scaling exponents for its structure functions, in both the low-$k$ and high-$k$ power-law ranges of 3D Hall-MHD, and find that the extended-self-similarity (ESS) procedure is helpful in extracting the multiscaling nature of structure functions in the high-$k$ regime, which otherwise appears to display simple scaling. Our results shed light on intriguing solar-wind measurements.

Debarghya Banerjee; Samriddhi Sankar Ray; Ganapati Sahoo; Rahul Pandit

2013-03-04T23:59:59.000Z

384

Dilaton thin-shell wormholes supported by a generalized Chaplygin gas  

E-Print Network (OSTI)

In this article, we construct spherical thin-shell wormholes with charge in dilaton gravity. The exotic matter required for the construction is provided by a generalized Chaplygin gas. We study the stability under perturbations preserving the symmetry. We find that the increase of the coupling between the dilaton and the electromagnetic fields reduces the range of the parameters for which stable configurations are possible.

Cecilia Bejarano; Ernesto F. Eiroa

2011-06-30T23:59:59.000Z

385

Beyond the No Core Shell Model: Extending the NCSM to Heavier Nuclei  

Science Conference Proceedings (OSTI)

The No Core Shell Model (NCSM) is an ab initio method for calculating the properties of light nuclei, up to about A = 20, in which all A nucleons are treated as being active. It is difficult to go to larger A values due to the rapid grow of the basis spaces required in order to obtain converged results. In this presentation we briefly discuss three new techniques for extending the NCSM to heavier mass nuclei.

Barrett, Bruce R. [Department of Physics, P.O. Box 210081, University of Arizona, Tucson, AZ 85721-0081 (United States)

2011-05-06T23:59:59.000Z

386

Shell model estimate of electric dipole moment in medium and heavy nuclei  

SciTech Connect

The nuclear electric dipole moment (EDM) and the nuclear Schiff moment for the lowest 1/2{sup +} state of {sup 129}Xe are investigated in terms of the nuclear shell model. We estimate the upper limit for the EDM of neutral {sup 129}Xe atom using the Schiff moment. We also estimate the upper limit of the nuclear EDM, which may be directly measured through ionic atoms.

Yoshinaga, Naotaka [Department of Physics, Saitama University, Saitama City 338-8570 (Japan); Higashiyama, Koji [Department of Physics, Chiba Institute of Technology, Narashino, Chiba 275-0023 (Japan)

2011-05-06T23:59:59.000Z

387

Advances Toward Inner-Shell Photo-Ionization X-Ray Lasing at 45 (Angstrom)  

Science Conference Proceedings (OSTI)

The inner-shell photo-ionization (ISPI) scheme requires photon energies at least high enough to photo-ionize the K-shell. {approx}286 eV, in the case of carbon. As a consequence of the higher cross-section, the inner-shell are selectively knocked out, leaving a hole state 1s2s{sup 2}2p{sup 2} in the singly charged carbon ion. This generates a population inversion to the radiatively connected state 1s{sup 2}2s{sup 2}2p in C+, leading to gain on the 1s-2p transition at 45 {angstrom}. The resonant character of the lasing transition in the single ionization state intrinsically allows much higher quantum efficiency compared to other schemes. Competing processes that deplete the population inversion include auto-ionization, Auger decay, and in particular collisional ionization of the outer-shell electrons by electrons generated during photo-ionization. These competing processes rapidly quench the gain. Consequently, the pump method must be capable of populating the inversion at a rate faster than the competing processes. This can be achieved by an ultra-fast, high intensity laser that is able to generate an ultra-fast, bright x-ray source. With current advances in the development of high-power, ultra-short pulse lasers it is possible to realize fast x-ray sources based that can deliver powerful pulses of light in the multiple hundred terawatt regime and beyond. They will discuss in greater detail concept, target design and a series of x-ray spectroscopy investigations they have conducted in order to optimize the absorber/x-ray converter--filter package.

Moon, S J; Weber, F A; Celliers, P M; Eder, D C

2002-07-18T23:59:59.000Z

388

Hollow Core-Shell Structured Porous Si-C Nanocomposites for Li-Ion Battery Anodes  

SciTech Connect

Hollow core-shell structured porous Si-C nanocomposites with void space up to tens of nanometers are designed to accommodate the volume expansion during lithiation for high-performance Li-ion battery anodes. An initial capacity of {approx}760 mAh/g after formation cycles (based on the entire electrode weight) with {approx}86% capacity retention over 100 cycles is achieved at a current density of 1 A/g. Good rate performance is also demonstrated.

Li, Xiaolin; Meduri, Praveen; Chen, Xilin; Qi, Wen N.; Engelhard, Mark H.; Xu, Wu; Ding, Fei; Xiao, Jie; Wang, Wei; Wang, Chong M.; Zhang, Jiguang; Liu, Jun

2012-06-14T23:59:59.000Z

389

The off shell {rho}{endash}{omega} mixing in the QCD sum rules  

SciTech Connect

The q{sup 2} dependence of the {rho} - {omega} mixing amplitude is analyzed with the use of the QCD sum rules and the dispersion relation. In going off shell the mixing decreases, changes sign at q{sup 2} {approx_equal} 0.4 m{sub {rho}}{sup 2} > 0, and is negative in the space-like region. Implications of this result to the isospin breaking part of the nuclear force are discussed.

Hatsuda, T. [Washington Univ., Seattle, WA (United States). Dept. of Physics; Henley, E.M. [Washington Univ., Seattle, WA (United States). Dept. of Physics]|[Washington Univ., Seattle, WA (United States). Inst. for Nuclear Theory; Meissner, T. [Washington Univ., Seattle, WA (United States). Inst. for Nuclear Theory; Krein, G. [Instituto de Fisica Teorica (IFT), Sao Paulo, SP (Brazil)

1993-06-01T23:59:59.000Z

390

Criticality safety evaluation of disposing of K Basin sludge in double-shell tank AW-105  

SciTech Connect

A criticality safety evaluation is made of the disposal of K Basin sludge in double-shell tank (DST) AW-105 located in the 200 east area of Hanford Site. The technical basis is provided for limits and controls to be used in the development of a criticality prevention specification (CPS). A model of K Basin sludge is developed to account for fuel burnup. The iron/uranium mass ration required to ensure an acceptable magrin of subcriticality is determined.

ROGERS, C.A.

1999-06-04T23:59:59.000Z

391

Flammable gas double shell tank expert elicitation presentations (Part A and Part B)  

Science Conference Proceedings (OSTI)

This document is a compilation of presentation packages and white papers for the Flammable Gas Double Shell Tank Expert Elicitation Workshop {number_sign}2. For each presentation given by the different authors, a separate section was developed. The purpose for issuing these workshop presentation packages and white papers as a supporting document is to provide traceability and a Quality Assurance record for future reference to these packages.

Bratzel, D.R.

1998-04-17T23:59:59.000Z

392

Final results of double-shell tank 241-AY-102 ultrasonic inspection  

SciTech Connect

This document presents the results and documentation of the nondestructive ultrasonic examination of tank 241-AY-102. A tank inspection supplier was retained to provide and use an ultrasonic examination system (equipment, procedures, and inspectors) to scan a limited area of double-shell tank 241-AY-102 primary tank wall and welds. The inspection found some indication of insignificant general and local wall thinning with no cracks detected.

JENSEN, C.E.

1999-08-23T23:59:59.000Z

393

Final results of double-shell tank 241-AZ-101 ultrasonic inspection  

SciTech Connect

This document presents the results and documentation of the nondestructive ultrasonic examination of tank 241-AZ-101. A tank inspection supplier was retained to provide and use an ultrasonic examination system (equipment, procedures, and inspectors) to scan a limited area of double-shell tank 241-AZ-101 primary tank wall and welds. The inspection found one reportable indication of thinning and no reportable pitting, corrosion, or cracking.

JENSEN, C.E.

1999-08-23T23:59:59.000Z

394

Final results of double-shell tank 241-AN-106 ultrasonic inspection  

SciTech Connect

This document presents the results and documentation of the nondestructive ultrasonic examination of tank 241-AN-106. A tank inspection supplier was retained to provide and use an ultrasonic examination system (equipment, procedures, and inspectors) to scan a limited area of double-shell tank 241-AN-106 primary tank wall and welds. The inspection found no reportable indications of thinning, pitting, corrosion, or cracking.

JENSEN, C.E.

1999-08-23T23:59:59.000Z

395

Paleogene cooling (55-30 MA) as inferred from oxygen isotope variation within mollusc shells  

E-Print Network (OSTI)

Paleogene cooling (c. 50-30 Ma) started sometime in the early-middle Eocene. This was a time when high-latitude and deep-sea temperatures were significantly warmer than today. This cooling culminated during the earliest Oligocene marked by the sudden appearance of a major continental glacier on Antarctica. We examine this cooling trend by analyzing oxygen isotope variation within mollusc shells from the Gulf Coastal Plain of the southern U.S. Our records show a secular cooling trend of mean annual temperature (MAT) in the Mississippi Embayment from an early Eocene tropical climate (26-27 ?C), with a seasonal temperature range (seasonality) of ~6 ?C, to an Oligocene paratropical climate (22-23?C) with an seasonality of ~8 ?C. These temperature records agree well with terrestrial climate proxies. This secular cooling trend, combined with sea-level change, was likely one of the major causes of molluscan turnover in the Mississippi Embayment to cool-tolerant taxa along the Paleogene cooling. Winter temperatures steadily decreased from the middle Eocene to early Oligocene. This contrasts with the sudden winter cooling at Eocene-Oligocene boundary proposed by Ivany et al. (2000). We examined seasonal temperature distribution of the modern marine shelf of the present northern U.S. Gulf Coast. A deeper water temperature model fits well with isotopic temperature profiles derived from fossils shells of the Red Bluff and Yazoo Formations shells, consistent with the paleobathymetry estimates inferred from independent proxies. This reveals that depth effect is one of the major factors controlling seasonality recorded in mollusc shells, resulting in decreasing MAT estimates when temperature stratification exists as in the present ocean. Warm Eocene low-latitude temperatures derived from molluscan oxygen isotope data agree with computer modeling results incorporating higher greenhouse gas concentrations. This supports the contention that the major reason for warm earth climate is elevated concentration of the greenhouse gases, giving a new insight for future climate response to anthropogenic CO? increase.

Kobashi, Takuro

2001-01-01T23:59:59.000Z

396

Design and formation mechanism of self-organized core/shell structure composite powder in immiscible liquid system  

Science Conference Proceedings (OSTI)

Under the guidance of the calculation of phase diagrams method, the self-organized Cu alloy/stainless steel composite powders with a core/shell microstructure were developed based on the gas atomization process, and the formation evolution of self-organized core/shell structure composite powders was modeled by the phase field method. This paper gives a more detailed explanation for the formation of self-organized core/shell structure composite powders from the viewpoints of thermodynamics and kinetics. Such core/shell structure composite powders have good combination of high strength and corrosion resistance (Fe-rich phase) and high electric and thermal conductivities (Cu-rich phase) with many potential advanced applications in electronic devices.

Wang Cuiping; Liu Xingjun; Shi Rongpei; Shen Chen; Wang Yunzhi; Ohnuma, Ikuo; Kainuma, Ryosuke; Ishida, Kiyohito [Department of Materials Science and Engineering, Xiamen University, Xiamen 361005 (China); Department of Materials Science and Engineering, Ohio State University, 2041 College Road, Columbus, Ohio 43210 (United States); Department of Materials Science, Graduate School of Engineering, Tohoku University, Sendai 980-8579 (Japan)

2007-10-01T23:59:59.000Z

397

The effects of geometry and adjacent regenerators on shell-and-tube heat exchangers in oscillating flows.  

E-Print Network (OSTI)

??An experimental study into the effects of geometry and the presence of adjacent screens on the acoustic impedances and heat transfer performance of shell-and-tube heat… (more)

Brady, John

2010-01-01T23:59:59.000Z

398

Long-Range Validity of Threshold Laws in Inner-Shell Photodetachment  

NLE Websites -- All DOE Office Websites (Extended Search)

Long-Range Validity of Threshold Laws in Inner-Shell Photodetachment Print Long-Range Validity of Threshold Laws in Inner-Shell Photodetachment Print A threshold law describes the dependence of a reaction yield near a reaction threshold. It is also a signature of the physical forces involved in the reaction, so the agreement of an observed threshold behavior with a threshold law or a departure from it can be a sensitive probe into how well the reaction physics is understood. A collaboration from Western Michigan University, the ALS, and Denison University has now shown that the threshold laws for inner-shell photodetachment of negative ions are not only obeyed but can extend over a much wider energy range than theory had predicted. Crossing a Threshold In physics and chemistry, a threshold refers to the minimum energy required for a reaction to just become observable. A threshold law mathematically describes the reaction yield as the energy varies near the threshold. For ionization of an atom, for example, the threshold is the minimum energy needed to eject an electron, and the threshold behavior of the ionization depends only on the Coulomb (electrical) attraction between the positively charged nucleus and negatively charged electron. When absorption of light causes removal (photodetachment) of an electron from a negatively charged ion (atom with one extra electron) the story changes because the negative electron is bound to a neutral atom.

399

Long-Range Validity of Threshold Laws in Inner-Shell Photodetachment  

NLE Websites -- All DOE Office Websites (Extended Search)

Long-Range Validity of Threshold Laws in Inner-Shell Photodetachment Print Long-Range Validity of Threshold Laws in Inner-Shell Photodetachment Print A threshold law describes the dependence of a reaction yield near a reaction threshold. It is also a signature of the physical forces involved in the reaction, so the agreement of an observed threshold behavior with a threshold law or a departure from it can be a sensitive probe into how well the reaction physics is understood. A collaboration from Western Michigan University, the ALS, and Denison University has now shown that the threshold laws for inner-shell photodetachment of negative ions are not only obeyed but can extend over a much wider energy range than theory had predicted. Crossing a Threshold In physics and chemistry, a threshold refers to the minimum energy required for a reaction to just become observable. A threshold law mathematically describes the reaction yield as the energy varies near the threshold. For ionization of an atom, for example, the threshold is the minimum energy needed to eject an electron, and the threshold behavior of the ionization depends only on the Coulomb (electrical) attraction between the positively charged nucleus and negatively charged electron. When absorption of light causes removal (photodetachment) of an electron from a negatively charged ion (atom with one extra electron) the story changes because the negative electron is bound to a neutral atom.

400

Shell-models of RMHD turbulence and the heating of solar coronal loops  

E-Print Network (OSTI)

A simplified non-linear numerical model for the development of incompressible magnetohydrodynamics (MHD) in the presence of a strong magnetic field B0 and stratification, nicknamed Shell-Atm, is presented. In planes orthogonal to the mean field, the non-linear incompressible dynamics is replaced by 2D shell-models for the complex variables u and b, allowing one to reach large Reynolds numbers while at the same time carrying out sufficiently long time integrations to obtain a good statistics at moderate computational cost. The shell-models of different planes are coupled by Alfven waves propagating along B0. The model may be applied to open or closed magnetic field configurations where the axial field dominates and the plasma pressure is low; here we apply it to the specific case of a magnetic loop of the solar corona heated via turbulence driven by photospheric motions, and we use statistics for its analysis. The Alfven waves interact non-linearly and form turbulent spectra in the directions perpendicular and, via propagation, also parallel to the mean field. A heating function is obtained, and is shown to be intermittent; the average heating is consistent with values required for sustaining a hot corona, and is proportional to the aspect ratio of the loop to the power -1.5; characteristic properties of heating events are distributed as power-laws. Cross-correlations show a delay of dissipation compared to energy content.

E. Buchlin; M. Velli

2006-06-26T23:59:59.000Z

Note: This page contains sample records for the topic "royal dutch shell" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Summary of Group Development and Testing for Single Shell Tank Closure at Hanford  

Science Conference Proceedings (OSTI)

This report is a summary of the bench-scale and large scale experimental studies performed by Savannah River National Laboratory for CH2M HILL to develop grout design mixes for possible use in producing fill materials as a part of Tank Closure of the Single-Shell Tanks at Hanford. The grout development data provided in this report demonstrates that these design mixes will produce fill materials that are ready for use in Hanford single shell tank closure. The purpose of this report is to assess the ability of the proposed grout specifications to meet the current requirements for successful single shell tank closure which will include the contracting of services for construction and operation of a grout batch plant. The research and field experience gained by SRNL in the closure of Tanks 17F and 20F at the Savannah River Site was leveraged into the grout development efforts for Hanford. It is concluded that the three Hanford grout design mixes provide fill materials that meet the current requirements for successful placement. This conclusion is based on the completion of recommended testing using Hanford area materials by the operators of the grout batch plant. This report summarizes the regulatory drivers and the requirements for grout mixes as tank fill material. It is these requirements for both fresh and cured grout properties that drove the development of the grout formulations for the stabilization, structural and capping layers.

Harbour, John, R.

2005-04-28T23:59:59.000Z

402

Decamethylytterbocene complexes of bipyridines and diazabutadines: multiconfigurational ground states and open-shell singlet formation  

Science Conference Proceedings (OSTI)

Partial ytterbium f-orbital occupancy (i.e. intermediate valence) and open-shell singlet Draft 12/formation are established for a variety of bipyridine and diazabutadiene adducts to decamethylytterbocene, (C{sub 5}Me{sub 5}){sub 2}Yb or Cp*{sub 2}Yb. Data used to support this claim includes ytterbium valence measurements using Yb Lm-edge x-ray absorption near-edge structure (XANES) spectroscopy, magnetic susceptibility and Complete Active Space Self-Consistent Field (CASSCF) multi configurational calculations, as well as structural measurements compared to density-functional theory (DFT) calculations. The CASSCF calculations indicate that the intermediate valence is the result of a multiconfigurational ground state wave function that has both an open-shell singlet f{sup 13} and a closed-shell singlet f{sup 14} component. A number of other competing theories for the unusual magnetism in these materials are ruled out by the presence of intermediate valence and its lack of any significant temperature dependence. These results have implications for understanding chemical bonding not only in organolanthanide complexes, but also for organometallic chemistry in general, as well as understanding magnetic interactions in nanopartic1es and devices.

Bauer, Eric D [Los Alamos National Laboratory; Booth, C H [LBNL; Walter, M D [LBNL; Kazhdan, D [LBNL; Hu, Y - J [LBNL; Lukens, Wayne [LBNL; Maron, Laurent [INSA TOULOUSE; Eisentein, Odile [UNIV MONTPELLIER 2; Anderson, Richard [LBNL

2009-01-01T23:59:59.000Z

403

Statistical Properties of Nuclei by the Shell Model Monte Carlo Method  

E-Print Network (OSTI)

We use quantum Monte Carlo methods in the framework of the interacting nuclear shell model to calculate the statistical properties of nuclei at finite temperature and/or excitation energies. With this approach we can carry out realistic calculations in much larger configuration spaces than are possible by conventional methods. A major application of the methods has been the microscopic calculation of nuclear partition functions and level densities, taking into account both correlations and shell effects. Our results for nuclei in the mass region A ~ 50 - 70 are in remarkably good agreement with experimental level densities without any adjustable parameters and are an improvement over empirical formulas. We have recently extended the shell model theory of level statistics to higher temperatures, including continuum effects. We have also constructed simple statistical models to explain the dependence of the microscopically calculated level densities on good quantum numbers such as parity. Thermal signatures of pairing correlations are identified through odd-even effects in the heat capacity.

Y. Alhassid

2006-04-26T23:59:59.000Z

404

Precision Manufacturing of Inertial Confinement Fusion Double Shell Laser Targets for OMEGA  

SciTech Connect

Double shell targets have been built by Lawrence Livermore National Laboratory (LLNL) for inertial confinement fusion (ICF) experiments on the Omega laser at the University of Rochester and as a prelude to similar experiments on NIF. Of particular interest to ICF studies are high-precision double shell implosion targets for demonstrating thermonuclear ignition without the need for cryogenic preparation. Because the ignition tolerance to interface instabilities is rather low, the manufacturing requirements for smooth surface finishes and shell concentricity are particularly strict. This paper describes a deterministic approach to manufacturing and controlling error sources in each component. Included is the design philosophy of why certain manufacturing techniques were chosen to best reduce the errors within the target. The manufacturing plan developed for this effort created a deterministic process that, once proven, is repeatable. By taking this rigorous approach to controlling all error sources during the manufacture of each component and during assembly, we have achieved the overall 5 {micro}m dimensional requirement with sub-micron surface flaws. Strengths and weaknesses of the manufacturing process will be discussed.

Amendt, P A; Bono, M J; Hibbard, R L; Castro, C; Bennett, D W

2003-11-21T23:59:59.000Z

405

Systematics of {alpha}-decay half-lives around shell closures  

Science Conference Proceedings (OSTI)

We present a systematic calculation of {alpha}-decay half-lives of even-even heavy and superheavy nuclei in the framework of the preformed {alpha} model. The microscopic {alpha}-daughter nuclear interaction potential is calculated by double-folding the density distributions of both {alpha} and daughter nuclei with a realistic effective Michigan three-Yukawa nucleon-nucleon interaction, and the microscopic Coulomb potential is calculated by folding the charge density distributions of the two interacting nuclei. The half-lives are found to be sensitive to the density dependence of the nucleon-nucleon interaction and the implementation of the Bohr-Sommerfeld quantization condition inherent in the Wentzel-Kramers-Brillouin approach. The {alpha}-decay half-lives obtained agree reasonably well with the available experimental data. Moreover, the study has been extended to the newly observed superheavy nuclei. The interplay of closed-shell effects in {alpha}-decay calculations is investigated. The {alpha}-decay calculations give the closed-shell effects of known spherical magicities, Z=82 and N=126, and further predict enhanced stabilities at N=152,162, and 184 for Z=100,108, and 114, owing to the stability of parent nuclei against {alpha} decays. It is worth noting that the aim of this work is not only to reproduce the experimental data better, but also to extend our understanding of {alpha}-decay half-lives around shell closures.

Ismail, M.; Ellithi, A. Y.; Botros, M. M.; Adel, A. [Physics Department, Faculty of Science, Cairo University (Egypt)

2010-02-15T23:59:59.000Z

406

1/12-Scale scoping experiments to characterize double-shell tank slurry uniformity: Test plan  

SciTech Connect

Million gallon double-shell tanks (DSTs) at Hanford are used to store transuranic, high-level, and low-level wastes. These wastes generally consist of a large volume of salt-laden solution covering a smaller volume of settled sludge primarily containing metal hydroxides. These wastes will be retrieved and processed into immobile waste forms suitable for permanent disposal. The current retrieval concept is to use submerged dual-nozzle pumps to mobilize the settled solids by creating jets of fluid that are directed at the tank solids. The pumps oscillate, creating arcs of high-velocity fluid jets that sweep the floor of the tank. After the solids are mobilized, the pumps will continue to operate at a reduced flow rate sufficient to maintain the particles in a uniform suspension. The objectives of these 1/12-scale scoping experiments are to determine how Reynolds number, Froude number, and gravitational settling parameter affect the degree of uniformity achieved during jet mixer pump operation in the full-scale double-shell tanks; develop linear models to predict the degree of uniformity achieved by jet mixer pumps operating in the full-scale double-shell tanks; apply linear models to predict the degree of uniformity that will be achieved in tank 241-AZ-101 and determine whether contents of that tank will be uniform to within {+-} 10% of the mean concentration; and obtain experimental concentration and jet velocity data to compared with the TEMPEST computational and modeling predictions to guide further code development.

Bamberger, J.A.; Liljegren, L.M.

1994-10-01T23:59:59.000Z

407

Stress evaluation of the primary tank of a double-shell underground storage tank facility  

SciTech Connect

A facility called the Multi-Function Waste Tank Facility (MWTF) is being designed at the Department of Energy`s Hanford site. The MWTF is expected to be completed in 1998 and will consist of six underground double-shell waste storage tanks and associated systems. These tanks will provide safe and environmentally acceptable storage capacity to handle waste generated during single-shell and double-shell tank safety mitigation and remediation activities. This paper summarizes the analysis and qualification of the primary tank structure of the MWTF, as performed by ICF Kaiser Hanford during the latter phase of Title 1 (Preliminary) design. Both computer finite element analysis (FEA) and hand calculations methods based on the so-called Tank Seismic Experts Panel (TSEP) Guidelines were used to perform the analysis and evaluation. Based on the evaluations summarized in this paper, it is concluded that the primary tank structure of the MWTF satisfies the project design requirements. In addition, the hand calculations performed using the methodologies provided in the TSEP Guidelines demonstrate that, except for slosh height, the capacities exceed the demand. The design accounts for the adverse effect of the excessive slosh height demand, i.e., inadequate freeboard, by increasing the hydrodynamic wall and roof pressures appropriately, and designing the tank for such increased pressures.

Atalay, M.B. [ICF Kaiser Engineers, Inc., Oakland, CA (United States); Stine, M.D. [ICF Kaiser Hanford Co., Richland, WA (United States); Farnworth, S.K. [Westinghouse Hanford Co., Richland, WA (United States)

1994-12-01T23:59:59.000Z

408

Retrieval of Tenth Single-shell Tank Complete at Hanford's Office of River  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Retrieval of Tenth Single-shell Tank Complete at Hanford's Office Retrieval of Tenth Single-shell Tank Complete at Hanford's Office of River Protection Retrieval of Tenth Single-shell Tank Complete at Hanford's Office of River Protection December 27, 2012 - 12:00pm Addthis EM’s Office of River Protection has successfully removed waste from a tenth storage tank at the Hanford site. Located in C Farm, C-109 is one of 16 underground tanks ranging in capacity from 55,000 to 530,000 gallons. EM's Office of River Protection has successfully removed waste from a tenth storage tank at the Hanford site. Located in C Farm, C-109 is one of 16 underground tanks ranging in capacity from 55,000 to 530,000 gallons. Standing near a pipe providing access to the tank below, workers initiate a water soak aimed at loosening hard-to-remove-waste from the bottom of the underground tank known as C-109.

409

Tss4U BV formerly Holecsol R S Renewable Energy Systems and Shell Solar  

Open Energy Info (EERE)

Tss4U BV formerly Holecsol R S Renewable Energy Systems and Shell Solar Tss4U BV formerly Holecsol R S Renewable Energy Systems and Shell Solar Energy Jump to: navigation, search Name Tss4U BV (formerly Holecsol, R&S Renewable Energy Systems and Shell Solar Energy) Place Veldhoven, Netherlands Zip 5503 Sector Solar, Wind energy Product Provides small solar and wind for offgrid applications, notably power for oil rigs. Coordinates 51.421746°, 5.404554° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":51.421746,"lon":5.404554,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

410

EVALUATION OF BEST AVAILABLE CONTROL TECHNOLOGY FOR TOXICS -TBACT- DOUBLE SHELL TANK FARMS PRIMARY VENTILATION SYSTEMS SUPPORTING WASTE TRANSFER OPERATIONS  

Science Conference Proceedings (OSTI)

This report is an evaluation of Best Available Control Technology for Toxics (tBACT) for installation and operation of the Hanford double shell (DST) tank primary ventilation systems. The DST primary ventilation systems are being modified to support Hanford's waste retrieval, mixing, and delivery of single shell tank (SST) and DST waste through the DST storage system to the Waste Treatment and Immobilizaiton Plant (WTP).

HAAS CC; KOVACH JL; KELLY SE; TURNER DA

2010-06-24T23:59:59.000Z

411

EVALUATION OF BEST AVAILABLE CONTROL TECHNOLOGY FOR TOXICS (TBACT) DOUBLE SHELL TANK FARMS PRIMARY VENTILATION SYSTEM SUPPORTING WASTE TRANSFER OPERATIONS  

Science Conference Proceedings (OSTI)

This report is an evaluation of Best Available Control Technology for Toxics (tBACT) for installation and operation of the Hanford double shell (DST) tank primary ventilation systems. The DST primary ventilation systems are being modified to support Hanford's waste retrieval, mixing, and delivery of single shell tank (SST) and DST waste throught the DST storage system to the Waste Treatment and Immobilization Plant (WTP).

KELLY SE; HAASS CC; KOVACH JL; TURNER DA

2010-06-03T23:59:59.000Z

412

Characterization of the corrosion behavior of the carbon steel liner in Hanford Site single-shell tanks  

SciTech Connect

Six safety initiatives have been identified for accelerating the resolution of waste tank safety issues and closure of unreviewed safety questions. Safety Initiative 5 is to reduce safety and environmental risk from tank leaks. Item d of Safety Initiative 5 is to complete corrosion studies of single-shell tanks to determine failure mechanisms and corrosion control options to minimize further degradation by June 1994. This report has been prepared to fulfill Safety Initiative 5, Item d. The corrosion mechanisms that apply to Hanford Site single-shell tanks are stress corrosion cracking, pitting/crevice corrosion, uniform corrosion, hydrogen embrittlement, and microbiologically influenced corrosion. The corrosion data relevant to the single-shell tanks dates back three decades, when results were obtained from in-situ corrosion coupons in a few single-shell tanks. Since that time there have been intertank transfers, evaporation, and chemical alterations of the waste. These activities have changed the character and the present composition of the waste is not well characterized. All conclusions and recommendations are made in the absence of relevant laboratory experimental data and tank inspection data. The report attempts to identify the failure mechanisms by a literature survey of carbon steel data in environments similar to the single-shell tank wastes, and by a review of the work performed at the Savannah River Site where similar wastes are stored in similar carbon steel tanks. Based on these surveys, and in the absence of data specific to Hanford single-shell tanks, it may be concluded that the single-shell tanks identified as leakers failed primarily by stress corrosion cracking due to the presence of high nitrate/low hydroxide wastes and residual stresses. In addition, some failures may be attributed to pitting under crevices in low hydroxide locations.

Anantatmula, R.P.; Schwenk, E.B. [Westinghouse Hanford Co., Richland, WA (United States); Danielson, M.J. [Pacific Northwest Lab., Richland, WA (United States)

1994-06-01T23:59:59.000Z

413

GAMMA-RAY BURSTS IN CIRCUMSTELLAR SHELLS: A POSSIBLE EXPLANATION FOR FLARES  

Science Conference Proceedings (OSTI)

It is now generally accepted that long-duration gamma-ray bursts (GRBs) are due to the collapse of massive rotating stars. The precise collapse process itself, however, is not yet fully understood. Strong winds, outbursts, and intense ionizing UV radiation from single stars or strongly interacting binaries are expected to destroy the molecular cloud cores that give birth to them and create highly complex circumburst environments for the explosion. Such environments might imprint features on GRB light curves that uniquely identify the nature of the progenitor and its collapse. We have performed numerical simulations of realistic environments for a variety of long-duration GRB progenitors with ZEUS-MP and have developed an analytical method for calculating GRB light curves in these profiles. Though a full, three-dimensional, relativistic magnetohydrodynamical computational model is required to precisely describe the light curve from a GRB in complex environments, our method can provide a qualitative understanding of these phenomena. We find that, in the context of the standard afterglow model, massive shells around GRBs produce strong signatures in their light curves, and that this can distinguish them from those occurring in uniform media or steady winds. These features can constrain the mass of the shell and the properties of the wind before and after the ejection. Moreover, the interaction of the GRB with the circumburst shell is seen to produce features that are consistent with observed X-ray flares that are often attributed to delayed energy injection by the central engine. Our algorithm for computing light curves is also applicable to GRBs in a variety of environments such as those in high-redshift cosmological halos or protogalaxies, both of which will soon be targets of future surveys such as the Joint Astrophysics Nascent Satellite or Lobster.

Mesler, Robert A.; Pihlstroem, Ylva M. [Department of Physics and Astronomy, University of New Mexico, MSC07 4220, Albuquerque, NM 87131 (United States); Whalen, Daniel J. [MS B227, T-2 Los Alamos National Laboratory, Los Alamos NM, 87545 (United States); Lloyd-Ronning, Nicole M.; Fryer, Chris L., E-mail: meslerra@unm.edu [MS-B227, T-6 Los Alamos National Laboratory, Los Alamos NM, 87545 (United States)

2012-10-01T23:59:59.000Z

414

Tank characterization report for single-shell tank 241-C-109  

SciTech Connect

This document provides the characterization information and interprets the data for Single-Shell Tank 241-C-109. Single-Shell Tank 241-C-109 is an underground storage tank containing high-level radioactive waste. It is located in the C Tank Farm in the Hanford Site`s 200 East Area. The tank was sampled in September of 1992 to address the Ferrocyanide Unreviewed Safety Question. Analyses of tank waste were also performed to support Hanford Federal Facility Agreement and Consent Order Milestone M-44-08. Tank 241-C-109 went into service in 1946 and received first-cycle decontamination waste from bismuth phosphate process operations at B Plant in 1948. Other waste types added that are expected to contribute to the current contents include ferrocyanide scavenging waste and Strontium Semiworks waste. It is the last tank in a cascade with Tanks 241-C-107 and 241-C-108. The tank has a capacity of 2,010 kL (530 kgal) and currently contains 250 kL (66 kgal) of waste, existing primarily of sludge. Approximately 9.15 kL (4 kgal) of supernate remain. The sludge is heterogeneous, with significantly different chemical compositions depending on waste depth. The major waste constituents include aluminum, calcium, iron, nickel, nitrate, nitrite, phosphate, sodium, sulfate and uranium. The major radionuclides present are Cesium 137 and Strontium 90. The results of this characterization indicate that the waste in this tank is adequately described in the Dangerous Waste Permit Application of the Single-Shell Tank System.

DiCenso, A.T.; Amato, L.C.; Lambie, R.W.; Franklin, J.D.; Seymour, B.J.; Johnson, K.W.; Stevens, R.H. [Los Alamos Technical Associates, Inc., Kennewick, WA (United States); Remund, K.M. [Pacific Northwest Lab., Richland, WA (United States); Sasaki, L.M.; Simpson, B.C. [Westinghouse Hanford Co., Richland, WA (United States)

1995-02-01T23:59:59.000Z

415

Differences Between the Pole and On-Shell Masses and Widths of the Higgs Boson  

E-Print Network (OSTI)

The differences between the on-shell mass and width of the Higgs boson and their pole counterparts are evaluated in leading order. For a heavy Higgs boson, they are found to be sensitive functions of the gauge parameter and become numerically large over a class of gauges that includes the unitary gauge. For a light Higgs boson, the differences remain small in all gauges. The pinch-technique mass and width are found to be close to their pole counterparts over a large range of Higgs boson masses.

B. A. Kniehl; A. Sirlin

1998-05-20T23:59:59.000Z

416

Converging sequences in the ab initio no-core shell model  

E-Print Network (OSTI)

We demonstrate the existence of multiple converging sequences in the ab initio no-core shell model. By examining the underlying theory of effective operators, we expose the physical foundations for the alternative pathways to convergence. This leads us to propose a revised strategy for evaluating effective interactions for $A$-body calculations in restricted model spaces. We suggest that this strategy is particularly useful for applications to nuclear processes in which states of both parities are used simultaneously, such as for transition rates. We demonstrate the utility of our strategy with large-scale calculations in light nuclei.

C. Forssén; J. P. Vary; E. Caurier; P. Navrátil

2008-02-12T23:59:59.000Z

417

Applications of the Strong Heat Transformation by Pulse Flow in the Shell and Tube Heat Exchanger  

E-Print Network (OSTI)

This article deals with the heat exchange coefficient varied with pulse frequency in the pulsation tube with different flow forms. The findings show that heat can be exchanged coefficient with the pulse frequency, and it has an optimal frequency. The laminar flow and turbulent flow have approximately the same optimal frequency, i.e., about 8 Hz. When the pulsation source was placed in the upstream and downstream position, the heat transformation was completed dissimilarly. These results are coincident with previous experiments. The article also gives some information on the applications of the heat transformation by pulse flow in the shell and tube heat exchanger.

Chen, Y.; Zhao, J.

2006-01-01T23:59:59.000Z

418

Investigation of the role of shell structure in quasi-fission mass distributions  

E-Print Network (OSTI)

Systematic measurements of mass-ratio distributions for fission following collisions of $^{48}$Ti projectiles with even-even target nuclei from $^{144}$Sm to $^{208}$Pb have been made at sub-barrier energies. They show the presence of quasifission, and depend strongly on target nucleus deformation and the fissility of the composite nucleus. A new framework to analyse systematic mass-ratio measurements allows direct comparison with the trends expected from shell structure, independent of assumptions or fits. This indicates that quasi-fission mass distributions show trends consistent with low energy mass-asymmetric fission of the same actinide elements.

D. J. Hinde; R. du Rietz; R. G. Thomas; M. Dasgupta; C. Simenel; M. L. Brown; M. Evers; D. H. Luong; L. R. Gasques; R. Rafiei; A. Wakhle

2011-11-21T23:59:59.000Z

419

Tank selection for Light Duty Utility Arm (LDUA) system hot testing in a single shell tank  

Science Conference Proceedings (OSTI)

The purpose of this report is to recommend a single shell tank in which to hot test the Light Duty Utility Arm (LDUA) for the Tank Waste Remediation System (TWRS) in Fiscal Year 1996. The LDUA is designed to utilize a 12 inch riser. During hot testing, the LDUA will deploy two end effectors (a High Resolution Stereoscopic Video Camera System and a Still/Stereo Photography System mounted on the end of the arm`s tool interface plate). In addition, three other systems (an Overview Video System, an Overview Stereo Video System, and a Topographic Mapping System) will be independently deployed and tested through 4 inch risers.

Bhatia, P.K.

1995-01-31T23:59:59.000Z

420

Search of double shell closure in the superheavy nuclei using a simple effective interaction  

E-Print Network (OSTI)

This paper refers to an another attempt to search for spherical double shell closure nu- clei beyond Z=82, N=126. All calculations and results are based on a newly developed approach entitled as simple effective interaction. Our results predict the combination of magic nucleus occurs at N=182 (Z=114,120,126). All possible evidences for the oc- currence of magic nuclei are discussed systematically. And, the obtained results for all observables compared with the relativistic mean field theory for NL3 parameter.

S. K. Biswal; M. Bhuyan; S. K. Singh; S. K. Patra

2014-01-19T23:59:59.000Z

Note: This page contains sample records for the topic "royal dutch shell" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Observation of shells in Coulomb explosions of rare-gas clusters  

Science Conference Proceedings (OSTI)

The explosions of noble gas clusters from argon and xenon irradiated by intense 35-fs infrared laser pulses have been studied. The kinetic energy spectra of ions produced in small clusters (shell structure that is attributed to originating from a radial charge distribution. With a simple classical particle simulation of Coulomb explosions, the energy structure was reproduced using information on the arrangement of charge in the cluster. It was found that, during the explosion, the inner atoms of the clusters were less ionized than the outer atoms.

Erk, B.; Hoffmann, K.; Kandadai, N.; Helal, A.; Keto, J.; Ditmire, T. [Texas Center for High Intensity Laser Science, Department of Physics, University of Texas at Austin, Austin, Texas 78712 (United States)

2011-04-15T23:59:59.000Z

422

Half-life calculation of one-proton emitters with a shell model potential  

SciTech Connect

The accumulated amount of data for half-lives of proton emitters still remains a challenge to the ability of nuclear models to reproduce them consistently. These nuclei are far from beta stability line in a region where the validity of current nuclear models is not guaranteed. A nuclear shell model is introduced to the calculation of the nuclear barrier of less deformed proton emitters. The predictions using the proposed model are in good agreement with the data, with the advantage of have used only a single parameter in the model.

Rodrigues, M. M.; Duarte, S. B. [Centro Brasileiro de Pesquisas Fisicas-CBPF/MCT Rua Dr. Xavier Sigaud, 150, 22290-180, Rio de Janeiro-RJ (Brazil); Teruya, N. [Departamento de Fisica, Universidade Federal da Paraiba - UFPB Campus de Joao Pessoa, 58051-970, Joao Pessoa - PB (Brazil)

2013-03-25T23:59:59.000Z

423

Off-Shell Behavior of Nucleon Self-Energy in Asymmetric Nuclear Matter  

E-Print Network (OSTI)

The off-shell behavior of the nucleon self-energy in isospin asymmetric nuclear matter is investigated within the framework of relativistic Dirac-Brueckner-Hartree-Fock approach based on projection techniques. The dependence of the Dirac components of the self-energy on momentum as well as energy is evaluated for symmetric as well as asymmetric nuclear matter. Special attention is paid to the various contributions to the momentum dependence of the real and imaginary part of the optical potential. The consequences to the different definitions of the effective nucleon mass and particle spectral functions are discussed.

E. N. E. van Dalen; H. Müther

2010-04-09T23:59:59.000Z

424

L-Shell Spectroscopy of Au as a Temperature Diagnostic Tool  

SciTech Connect

In order to develop plasma diagnostic for reduced-size hot hohlraums under laser irradiation, they have studied the L-shell emission from highly charged gold ions in the SuperEBIT electron beam ion trap. The resolving power necessary to identify emission features from individual charge states in a picket fence pattern has been estimated, and the observed radiation features have been compared with atomic structure calculations. They find that the strong 3d{sub 5/2} {yields} 2p{sub 3/2} emission features are particularly useful in determining the charge state distribution and average ion charge , which are strongly sensitive to the electron temperature.

Tr?bert, E; Hansen, S B; Beiersdorfer, P; Brown, G V; Widmann, K; Chung, H K

2008-03-27T23:59:59.000Z

425

Public Perception and the Oil Industry: An Analysis of Oil Employees' and Nigerians' Opinions Regarding Exxon Mobil and Shell Oil's Corporate Social Responsibility Efforts.  

E-Print Network (OSTI)

??This study looked at oil industry employees and Nigerians perceptions of Exxon Mobil and Shell Oil as socially responsible corporations and the role the two-step… (more)

Narcisse, Liana L.

2010-01-01T23:59:59.000Z

426

Protection of Cities from Small Rockets, Missiles, Projectiles and Mortar Shells  

E-Print Network (OSTI)

The authors suggest a low cost closed AB-Dome, which may protect small cities such as Sederot from rockets, mortar shells, chemical and biological weapons. The offered AB-Dome is also very useful in peacetime because it protects the city from outside weather (violent storms, hail) and creates a fine climate within the Dome. The roughly hemispherical AB-Dome is a gigantic inflated thin transparent film, located at altitude up to 1 - 5 kilometers, which converts the city into a closed-loop air system. The film may be armored with a basalt or steel grille or cloth pocket-retained stones that destroy (by collision or detonation) incoming rockets, shells and other projectiles. Such an AB-Dome would even protect the city in case of a third-party nuclear war involving temporary poisoning of the Earth atmosphere by radioactive dust. The building of the offered dome is easy; the film spreads on the ground, the fan engines turn on and the cover rises to the needed altitude and is supported there by a small internal ove...

Bolonkin, Alexander

2008-01-01T23:59:59.000Z

427

Contaminant Release Data Package for Residual Waste in Single-Shell Hanford Tanks  

Science Conference Proceedings (OSTI)

The Hanford Federal Facility Agreement and Consent Order requires that a Resource Conservation and Recovery Act (RCRA) Facility Investigation report be submitted to the Washington State Department of Ecology. The RCRA Facility Investigation report will provide a detailed description of the state of knowledge needed for tank farm performance assessments. This data package provides detailed technical information about contaminant release from closed single-shell tanks necessary to support the RCRA Facility Investigation report. It was prepared by Pacific Northwest National Laboratory (PNNL) for CH2M HILL Hanford Group, Inc., which is tasked by the U.S. Department of Energy (DOE) with tank closure. This data package is a compilation of contaminant release rate data for residual waste in the four Hanford single-shell tanks (SSTs) that have been tested (C-103, C-106, C-202, and C-203). The report describes the geochemical properties of the primary contaminants of interest from the perspective of long-term risk to groundwater (uranium, technetium-99, iodine-129, chromium, transuranics, and nitrate), the occurrence of these contaminants in the residual waste, release mechanisms from the solid waste to water infiltrating the tanks in the future, and the laboratory tests conducted to measure release rates.

Deutsch, William J.; Cantrell, Kirk J.; Krupka, Kenneth M.

2007-12-01T23:59:59.000Z

428

Proton emission from cone-in-shell fast-ignition experiments at Omega  

Science Conference Proceedings (OSTI)

Measurements of energetic protons from cone-in-shell fast-igniton implosions at Omega have been conducted. In these experiments, charged-particle spectrometers were used to measure a significant population (>10{sup 13}) of energetic protons (7.5 MeV max.), indicating the presence of strong electric fields. These energetic protons, observed in directions both transverse and forward relative to the direction of the short-pulse laser beam, have been used to study aspects of coupling efficiency of the petawatt fast-ignitior beam. Approximately 5% of the laser energy coupled to hot electrons was lost to fast ions. Forward going protons were less energetic and showed no dependence on laser intensity or whether the cone tip was intact when the short-pulse laser was fired. Maximum energies of protons emitted transverse to the cone-in-shell target scale with incident on-target laser intensity (2-6 Multiplication-Sign 10{sup 18}W-cm{sup -2}), as described by the ponderomotive scaling ({proportional_to}I{sup 1/2}). It is shown that these protons are accelerated from the entire cone, rather than from the cone tip alone. These protons were used to estimate the lower limit on the hot-electron temperature, which was found to be hotter than the ponderomotive scaling by factors of 2-3.

Sinenian, N.; Frenje, J. A.; Seguin, F. H.; Li, C. K.; Petrasso, R. D. [Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States); Theobald, W.; Stoeckl, C. [Laboratory for Laser Energetics, Rochester, New York 14623 (United States); Stephens, R. B. [General Atomics, San Diego, California 92186 (United States)

2012-11-15T23:59:59.000Z

429

Evaluation of Flygt Propeller Xixers for Double Shell Tank (DST) High Level Waste Auxiliary Solids Mobilization  

Science Conference Proceedings (OSTI)

The River Protection Project (RPP) is planning to retrieve radioactive waste from the single-shell tanks (SST) and double-shell tanks (DST) underground at the Hanford Site. This waste will then be transferred to a waste treatment plant to be immobilized (vitrified) in a stable glass form. Over the years, the waste solids in many of the tanks have settled to form a layer of sludge at the bottom. The thickness of the sludge layer varies from tank to tank, from no sludge or a few inches of sludge to about 15 ft of sludge. The purpose of this technology and engineering case study is to evaluate the Flygt{trademark} submersible propeller mixer as a potential technology for auxiliary mobilization of DST HLW solids. Considering the usage and development to date by other sites in the development of this technology, this study also has the objective of expanding the knowledge base of the Flygt{trademark} mixer concept with the broader perspective of Hanford Site tank waste retrieval. More specifically, the objectives of this study delineated from the work plan are described.

PACQUET, E.A.

2000-07-20T23:59:59.000Z

430

Prospects for ultracold polar and magnetic chromium-closed-shell-atom molecules  

E-Print Network (OSTI)

The properties of the electronic ground state of the polar and paramagnetic chromium--closed-shell-atom molecules have been investigated. State-of-the-art \\textit{ab initio} techniques have been applied to compute the potential energy curves for the chromium--alkaline-earth-metal-atom, CrX (X = Be, Mg, Ca, Sr, Ba), and chromium--ytterbium, CrYb, molecules in the Born-Oppenheimer approximation for the $X^7\\Sigma^+$ high-spin electronic ground state. The spin restricted open-shell coupled cluster method restricted to single, double, and noniterative triple excitations, RCCSD(T), was employed and the scalar relativistic effects within Douglas-Kroll-Hess Hamiltonian or energy-consistent pseudopotentials were included. The permanent electric dipole moments and static electric dipole polarizabilities were computed. The leading long-range coefficients describing the dispersion interaction between atoms at large interatomic distances, $C_6$, are also reported. Molecules under investigation are an example of species p...

Tomza, Micha?

2013-01-01T23:59:59.000Z

431

SAFETY EVALUATION OF OXALIC ACID WASTE RETRIEVAL IN SINGLE SHELL TANK (SST) 241-C-106  

Science Conference Proceedings (OSTI)

This report documents the safety evaluation of the process of retrieving sludge waste from single-shell tank 241-C-106 using oxalic acid. The results of the HAZOP, safety evaluation, and control allocation/decision are part of the report. This safety evaluation considers the use of oxalic acid to recover residual waste in single-shell tank (SST) 241-C-106. This is an activity not addressed in the current tank farm safety basis. This evaluation has five specific purposes: (1) Identifying the key configuration and operating assumptions needed to evaluate oxalic acid dissolution in SST 241-C-106. (2) Documenting the hazardous conditions identified during the oxalic acid dissolution hazard and operability study (HAZOP). (3) Documenting the comparison of the HAZOP results to the hazardous conditions and associated analyzed accident currently included in the safety basis, as documented in HNF-SD-WM-TI-764, ''Hazard Analysis Database Report''. (4) Documenting the evaluation of the oxalic acid dissolution activity with respect to Accident analyses described in HNF-SD-WM-SAR-067, ''Tank Farms Final Safety Analysis Report'' (FSAR). (5)Controls specified in HNF-SD-WM-TSR-006, ''Tank Farms Technical Safety Requirements'' (TSR). Documenting the process and results of control decisions as well as the applicability of preventive and/or mitigative controls to each oxalic acid addition hazardous condition.

GOETZ, T.G.

2003-07-21T23:59:59.000Z

432

Multi-spectral Observations of Lunar Occultations: I. Resolving The Dust Shell Around AFGL 5440  

E-Print Network (OSTI)

We present observations and modeling of a lunar occultation of the dust-enshrouded carbon star AFGL 5440. The observations were made over a continuous range of wavelengths from 1 - 4um with a high-speed spectrophotometer designed expressly for this purpose. We find that the occultation fringes cannot be fit by any single-size model. We use the DUSTY radiative transfer code to model a circumstellar shell and fit both the observed occultation light curves and the spectral energy distribution described in the literature. We find a strong constraint on the inner radius of the dust shell, Tmax = 950 K +/- 50K, and optical depth at 5um of 0.5 +/- 0.1. The observations are best fit by models with a density gradient of r^-2 or the gradient derived by Ivezic & Elitzur for a radiatively driven hydrodynamic outflow. Our models cannot fit the observed IRAS 60um flux without assuming a substantial abundance of graphite or by assuming a substantially higher mass-loss rate in the past.

Paul M. Harvey; Andrew Oldag

2007-04-02T23:59:59.000Z

433

Multi-spectral Observations of Lunar Occultations: I. Resolving The Dust Shell Around AFGL 5440  

E-Print Network (OSTI)

We present observations and modeling of a lunar occultation of the dust-enshrouded carbon star AFGL 5440. The observations were made over a continuous range of wavelengths from 1 - 4um with a high-speed spectrophotometer designed expressly for this purpose. We find that the occultation fringes cannot be fit by any single-size model. We use the DUSTY radiative transfer code to model a circumstellar shell and fit both the observed occultation light curves and the spectral energy distribution described in the literature. We find a strong constraint on the inner radius of the dust shell, Tmax = 950 K +/- 50K, and optical depth at 5um of 0.5 +/- 0.1. The observations are best fit by models with a density gradient of r^-2 or the gradient derived by Ivezic & Elitzur for a radiatively driven hydrodynamic outflow. Our models cannot fit the observed IRAS 60um flux without assuming a substantial abundance of graphite or by assuming a substantially higher mass-loss rate in the past.

Harvey, Paul M

2007-01-01T23:59:59.000Z

434

A Study on Experiment and Numerical Analysis for Disclosing Shell Wall Thinning of a Feedwater Heater  

Science Conference Proceedings (OSTI)

Feedwater heaters of many nuclear power plants have recently experienced severe wall thinning damage, which will increase as operating time progresses. Several nuclear power plants in Korea have experienced wall thinning damage in the area around the impingement baffle - installed downstream of the high pressure turbine extraction steam line - inside number 5A and 5B feedwater heaters. At that point, the extracted steam from the high pressure turbine is two phase fluid at high temperature, high pressure, and high speed. Since it flows in reverse direction after impinging the impingement baffle, the shell wall of the number 5 high pressure feedwater heater may be affected by flow-accelerated corrosion. This paper describes the comparisons between the numerical analysis results using the FLUENT code and the down scale experimental data in an effort to determine root causes of the shell wall thinning of the high pressure feedwater heaters. The numerical analysis and experimental data were also confirmed by actual wall thickness measured by an ultrasonic test. (authors)

Kyeong Mo, Hwang; Tae Eun, Jin [Korea Power Engineering Company, 360-9, Mabuk-dong, Kusong-Eup, Yongin-Shi (Korea, Republic of); Lee, Woo [Daeji Metal Co., LTD., 994-57, Dongchun-Dong, Yeunsu-Gu, Incheon Shi (Korea, Republic of); Kyung Hoon, Kim [Kyunghee University, 1, Seocheon-Ri, Gihung-Eup, Yongin-Shi (Korea, Republic of)

2006-07-01T23:59:59.000Z

435

Ammonia in simulated Hanford double-shell tank wastes: Solubility and effects on surface tension  

Science Conference Proceedings (OSTI)

Radioactive and wastes left from defense materials production activities are temporarily stored in large underground tanks at the Hanford Site in south central Washington State (Tank Waste Science Panel 1991). Some of these wastes are in the form of a thick slurry (``double-shell slurry``) containing sodium nitrate, sodium nitrite, sodium aluminate, sodium hydroxide, sodium carbonate, organic complexants and buffering agents, complexant fragments and other minor components (Herting et al. 1992a; Herting et al. 1992b; Campbell et al. 1994). As a result of thermal and radiolytic processes, a number of gases are known to be produced by some of these stored wastes, including ammonia, nitrous oxide, nitrogen, hydrogen, and methane (Babad et al. 1991; Ashby et al. 1992; Meisel et al. 1993; Ashby et al. 1993; Ashby et al. 1994; Bryan et al. 1993; US Department of Energy 1994). Before the emplacement of a mixer pump, these gases were retained in and periodically released from Tank 241-SY-101, a double-shell tank at the Hanford Site (Babad et al. 1992; US Department of Energy 1994). Gases are believed to be retained primarily in the form of bubbles attached to solid particles (Bryan, Pederson, and Scheele 1992), with very little actually dissolved in the liquid. Ammonia is an exception. The relation between the concentration of aqueous ammonia in such concentrated, caustic mixtures and the ammonia partial pressure is not well known, however.

Norton, J.D.; Pederson, L.R.

1994-09-01T23:59:59.000Z

436

Initial cone-in-shell fast-ignition experiments on OMEGA  

SciTech Connect

Fast ignition is a two-step inertial confinement fusion concept where megaelectron volt electrons ignite the compressed core of an imploded fuel capsule driven by a relatively low-implosion velocity. Initial surrogate cone-in-shell, fast-ignitor experiments using a highly shaped driver pulse to assemble a dense core in front of the cone tip were performed on the OMEGA/OMEGA EP Laser [T. R. Boehly et al., Opt. Commun. 133, 495 (1997); L. J. Waxer et al., Opt. Photonics News 16, 30 (2005)]. With optimal timing, the OMEGA EP pulse produced up to {approx}1.4 x 10{sup 7} additional neutrons which is a factor of {approx}4 more neutrons than without short-pulse heating. Shock-breakout measurements performed with the same targets and drive conditions demonstrate an intact cone tip at the time when the additional neutrons are produced. Velocity interferometer system for any reflector measurements show that x-rays from the shell's coronal plasma preheat the inner cone wall of thin-walled Au cones, while the thick-walled cones that are used in the integrated experiments are not affected by preheat.

Theobald, W.; Solodov, A. A.; Stoeckl, C.; Anderson, K. S.; Boehly, T. R.; Craxton, R. S.; Delettrez, J. A.; Dorrer, C.; Glebov, V. Yu.; Knauer, J. P.; Marshall, F. J.; Marshall, K. L.; Nilson, P. M.; Sangster, T. C.; Seka, W. [Laboratory for Laser Energetics and Fusion Science Center, 250 East River Road, Rochester, New York 14623-1299 (United States); Betti, R.; Meyerhofer, D. D. [Laboratory for Laser Energetics and Fusion Science Center, 250 East River Road, Rochester, New York 14623-1299 (United States); Departments of Mechanical Engineering and Physics, University of Rochester, Rochester, New York 14623 (United States); Frenje, J. A.; Sinenian, N. [Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States); Habara, H. [Graduate School of Engineering, Osaka University, Suita, 565-0871 Osaka (Japan)

2011-05-15T23:59:59.000Z

437

Experimental shellside flow visualization in a shell and tube heat exchanger  

E-Print Network (OSTI)

Shell and tube heat exchangers are an extremely effective and mechanically feasible method of transferring thermal energy between two fluids. There is great demand for effective design methods capable of producing highly efficient models. To further improve efficiency, there must be an increased understanding of the physics of shellside flow at a local level. To accomplish this end, an experimental investigation was conducted to obtain flow visualization and internal local pressure drop information in the shellside flow. A scale-model shell and tube heat exchanger with an outer diameter of 30.5 cm and a length of 61 cm was designed and constructed out of acrylic. Water was utilized as the working fluid and flowrates ranging from 0.32 to 2.21 L/s were studied. Flow visualization photographs confirmed the existence of leakage streams and recirculation zones. Anomalous vortices were also detected under certain circumstances. Global experimental pressure drops were in good agreement with values predicted from other methods. Local internal pressure dro s were also recorded for the first time and were in good agreement with what would be expected from conventional theory.

Fischer, Matthew Winslow

1998-01-01T23:59:59.000Z

438

The theory of shell-based Q-mappings in geometric function theory  

Science Conference Proceedings (OSTI)

Open, discrete Q-mappings in R{sup n}, n{>=}2, Q element of L{sup 1}{sub loc}, are proved to be absolutely continuous on lines, to belong to the Sobolev class W{sub loc}{sup 1,1}, to be differentiable almost everywhere and to have the N{sup -1}-property (converse to the Luzin N-property). It is shown that a family of open, discrete shell-based Q-mappings leaving out a subset of positive capacity is normal, provided that either Q has finite mean oscillation at each point or Q has only logarithmic singularities of order at most n-1. Under the same assumptions on Q it is proved that an isolated singularity x{sub 0} element of D of an open discrete shell-based Q-map f:D/{l_brace}x{sub 0{r_brace}{yields}}R-bar{sup n} is removable; moreover, the extended map is open and discrete. On the basis of these results analogues of the well-known Liouville, Sokhotskii-Weierstrass and Picard theorems are obtained. Bibliography: 34 titles.

Salimov, Ruslan R; Sevost'yanov, Evgenii A [Institute of Applied Mathematics and Mechanics, Ukraine National Academy of Sciences, Donetsk (Ukraine)

2010-08-12T23:59:59.000Z

439

Discovery of the First Leaking Double-Shell Tank - Hanford Tank 241-AY-102-14222  

SciTech Connect

A routine video inspection of the annulus space between the primary tank and secondary liner of double-shell tank 241-AY-102 was performed in August 2012. During the inspection, unexpected material was discovered. A subsequent video inspection revealed additional unexpected material on the opposite side of the tank, none of which had been observed during inspections performed in December 2006 and January 2007. A formal leak assessment team was established to review the tank's construction and operating histories, and preparations for sampling and analysis began to determine the material's origin. A new sampling device was required to collect material from locations that were inaccessible to the available sampler. Following its design and fabrication, a mock-up test was performed for the new sampling tool to ensure its functionality and capability of performing the required tasks. Within three months of the discovery of the unexpected material, sampling tools were deployed, material was collected, and analyses were performed. Results indicated that some of the unknown material was indicative of soil, whereas the remainder was consistent with tank waste. This, along with the analyses performed by the leak assessment team on the tank's construction history, lead to the conclusion that the primary tank was leaking into the annulus. Several issues were encountered during the deployment of the samplers into the annulus. As this was the first time samples had been required from the annulus of a double-shell tank, a formal lessons learned was created concerning designing equipment for unique purposes under time constraints.

Harrington, Stephanie J.; Sams, Terry L.

2013-11-06T23:59:59.000Z

440

Bimetallic IrNi Core Platinum Monolayer Shell Electrocatalysts for the Oxygen Reduction Reaction  

DOE Green Energy (OSTI)

We synthesized a low-Pt content electrocatalyst consisting of a Pt monolayer placed on carbon-supported thermally treated IrNi core-shell structured nanoparticles using galvanic displacement of a Cu monolayer deposited at underpotentials. The Pt mass activity of the Pt{sub ML}/IrNi/C electrocatalyst obtained in a scale-up synthesis is approximately 3 times higher than that of the commercial Pt/C electrocatalyst. The electronic and geometrical effects of the IrNi substrate on the Pt monolayer result in its higher catalytic activity than that of Pt nanoparticles. The structure and composition of the core-shell nanoparticles were verified using transmission electron microscopy and in situ X-ray absorption spectroscopy, while a potential cycling test was employed to confirm the stability of the electrocatalyst. Our experimental results, supported by the density functional calculations using a sphere-like model, demonstrate an effective way of using Pt that can resolve key problems of cathodic oxygen reduction hampering fuel cell commercialization.

Kuttiyiel K. A.; Sasaki, K.; Choi, Y.M.; Su, D.; Liu, P.; Adzic, R.R.

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "royal dutch shell" from the National Library of EnergyBeta (NLEBeta).
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441

Engineering Basis Document Review Supporting the Double Shell Tank (DST) System Specification Development  

Science Conference Proceedings (OSTI)

The Double-Shell Tank (DST) System is required to transition from its current storage mission to a storage and retrieval mission supporting the River Protection Project Phase 1 privatization, defined in HNF-SD-WM-MAR-008, Tank Waste Remediation System Mission Analysis Report. Requirements for the DST subsystems are being developed using the top-down systems engineering process outlined in HNF-SD-WM-SEMP-002, Tank Waste Remediation System Systems Engineering Management Plan. This top-down process considers existing designs to the extent that these designs impose unavoidable constraints on the Phase 1 mission. Existing engineering-basis documents were screened, and the unavoidable constraints were identified. The constraints identified herein will be added to the DST System specification (HNF-SD-WM-TRD-007, System Specification for the Double-Shell Tank System). While the letter revisions of the DST System specification were constructed with a less rigorous review of the existing engineering-basis documents, the Revision 0 release of the specification must incorporate the results of the review documented herein. The purpose of this document is to describe the screening process and criteria used to determine which constraints are unavoidable and to document the screening results.

LEONARD, M.W.

2000-03-14T23:59:59.000Z

442

Shell Structure, Melting and Dynamics of Ion Clusters Confined in an Octupolar Trap  

Science Conference Proceedings (OSTI)

The stable structures of clusters of identical ions trapped in an isotropic octupolar trap are investigated using global optimization methods. These clusters form well defined shells of ions that are approximately solutions of the Thomson problem. In particular, magic numbers are found to correlate with highly symmetric configurations. Using Monte Carlo simulations, finite temperature properties are also investigated. Melting proceeds from the core, and takes place through a very progressive loss of the shell structure. The hollow shape is eventually lost at very high temperatures, where the ions essentially feel the confinement but not the Coulomb repulsion. The vibrational density of states shows marked differences with the harmonic case, but also with bulk Wigner crystals. The variations of the maximal Lyapunov exponent obtained from additional molecular dynamics trajectories reveals that the dynamics becomes increasingly chaotic as the temperature increases. With the decreasing influence of the Coulomb interaction, a more regular behavior is found at very high temperatures but, contrary to the quadrupolar case, still highly chaotic.

Calvo, F. [LASIM, Universite Claude Bernard and CNRS, Bat. A. Kastler, 43 Bd du 11 Novembre 1918, F69622 Villeurbanne Cedex (France); Yurtsever, E. [Koc University, Rumelifeneriyolu, Sariyer, Istanbul 34450 (Turkey)

2009-12-03T23:59:59.000Z

443

Bottom head to shell junction assembly for a boiling water nuclear reactor  

DOE Patents (OSTI)

A bottom head to shell junction assembly which, in one embodiment, includes an annular forging having an integrally formed pump deck and shroud support is described. In the one embodiment, the annular forging also includes a top, cylindrical shaped end configured to be welded to one end of the pressure vessel cylindrical shell and a bottom, conical shaped end configured to be welded to the disk shaped bottom head. Reactor internal pump nozzles also are integrally formed in the annular forging. The nozzles do not include any internal or external projections. Stubs are formed in each nozzle opening to facilitate welding a pump housing to the forging. Also, an upper portion of each nozzle opening is configured to receive a portion of a diffuser coupled to a pump shaft which extends through the nozzle opening. Diffuser openings are formed in the integral pump deck to provide additional support for the pump impellers. The diffuser opening is sized so that a pump impeller can extend at least partially therethrough. The pump impeller is connected to the pump shaft which extends through the nozzle opening. 5 figs.

Fife, A.B.; Ballas, G.J.

1998-02-24T23:59:59.000Z

444

Bottom head to shell junction assembly for a boiling water nuclear reactor  

DOE Patents (OSTI)

A bottom head to shell junction assembly which, in one embodiment, includes an annular forging having an integrally formed pump deck and shroud support is described. In the one embodiment, the annular forging also includes a top, cylindrical shaped end configured to be welded to one end of the pressure vessel cylindrical shell and a bottom, conical shaped end configured to be welded to the disk shaped bottom head. Reactor internal pump nozzles also are integrally formed in the annular forging. The nozzles do not include any internal or external projections. Stubs are formed in each nozzle opening to facilitate welding a pump housing to the forging. Also, an upper portion of each nozzle opening is configured to receive a portion of a diffuser coupled to a pump shaft which extends through the nozzle opening. Diffuser openings are formed in the integral pump deck to provide additional support for the pump impellers. The diffuser opening is sized so that a pump impeller can extend at least partially therethrough. The pump impeller is connected to the pump shaft which extends through the nozzle opening.

Fife, Alex Blair (San Jose, CA); Ballas, Gary J. (San Jose, CA)

1998-01-01T23:59:59.000Z

445

Analysis of organic carbon and moisture in Hanford single-shell tank waste  

SciTech Connect

This report documents a revised analysis performed by Pacific Northwest Laboratory involving the organic carbon laboratory measurement data for Hanford single-shell tanks (SSTs) obtained from a review of the laboratory analytical data. This activity has as its objective to provide a best-estimate, including confidence levels, of total organic carbon (TOC) and moisture in each of the 149 SSTs at Hanford. The TOC and moisture information presented in this report is useful as part of the criteria to identify SSTs for additional measurements, or monitoring for the Organic Safety Program. In April 1994, an initial study of the organic carbon in Hanford single-shell tanks was completed at PNL. That study reflected the estimates of TOC based on tank characterizations datasets that were available at the time. Also in that study, estimation of dry basis TOC was based on generalized assumptions pertaining to the moisture of the tank wastes. The new information pertaining to tank moisture and TOC data that has become available from the current study influences the best estimates of TOC in each of the SSTs. This investigation of tank TOC and moisture has resulted in improved estimates based on waste phase: saltcake, sludge, or liquid. This report details the assumptions and methodologies used to develop the estimates of TOC and moisture in each of the 149 SSTs at Hanford.

Toth, J.J.; Heasler, P.G.; Lerchen, M.E.; Hill, J.G.; Whitney, P.D.

1995-05-01T23:59:59.000Z

446

Tank characterization report for single-shell tank 241-S-104  

SciTech Connect

In July and August 1992, Single-Shell Tank 241-S-104 was sampled as part of the overall characterization effort directed by the Hanford Federal Facility Agreement and Consent Order. Sampling was also performed to determine proper handling of the waste, to address corrosivity and compatibility issues, and to comply with requirements of the Washington Administrative Code. This Tank Characterization Report presents an overview of that tank sampling and analysis effort, and contains observations regarding waste characteristics. It also presents expected concentration and bulk inventory data for the waste contents based on this latest sampling data and background historical and surveillance tank information. Finally, this report makes recommendations and conclusions regarding operational safety. The purpose of this report is to describe the characteristics the waste in Single-Shell Tank 241-S-104 (hereafter, Tank 241-S-104) based on information obtained from a variety of sources. This report summarizes the available information regarding the chemical and physical properties of the waste in Tank 241-S-104, and using the historical information to place the analytical data in context, arranges this information in a format useful for making management and technical decisions concerning waste tank safety and disposal issues. In addition, conclusions and recommendations are presented based on safety issues and further characterization needs.

DiCenso, A.T.; Simpson, B.C.

1994-09-29T23:59:59.000Z

447

Lattice-Strain Control of Exceptional Activity in Dealloyed Core-Shell Fuel Cell Catalysts  

DOE Green Energy (OSTI)

We present a combined experimental and theoretical approach to demonstrate how lattice strain can be used to continuously tune the catalytic activity of the oxygen reduction reaction (ORR) on bimetallic nanoparticles that have been dealloyed. The sluggish kinetics of the ORR is a key barrier to the adaptation of fuel cells and currently limits their widespread use. Dealloyed Pt-Cu bimetallic nanoparticles, however, have been shown to exhibit uniquely high reactivity for this reaction. We first present evidence for the formation of a core-shell structure during dealloying, which involves removal of Cu from the surface and subsurface of the precursor nanoparticles. We then show that the resulting Pt-rich surface shell exhibits compressive strain that depends on the composition of the precursor alloy. We next demonstrate the existence of a downward shift of the Pt d-band, resulting in weakening of the bond strength of intermediate oxygenated species due to strain. Finally, we combine synthesis, strain, and catalytic reactivity in an experimental/theoretical reactivity-strain relationship which provides guidelines for the rational design of strained oxygen reduction electrocatalysts. The stoichiometry of the precursor, together with the dealloying conditions, provides experimental control over the resulting surface strain and thereby allows continuous tuning of the surface electrocatalytic reactivity - a concept that can be generalized to other catalytic reactions.

Strasser, Peter

2011-08-19T23:59:59.000Z

448

Hanford Double-Shell Tank Extent-of-Condition Construction Review - 14174  

SciTech Connect

During routine visual inspections of Hanford double-shell waste tank 241-AY-102 (AY-102), anomalies were identified on the annulus floor which resulted in further evaluations. Following a formal leak assessment in October 2012, Washington River Protection Solutions, LLC (WRPS) determined that the primary tank of AY-102 was leaking. The formal leak assessment, documented in RPP-ASMT-53793,Tank 241-AY-102 Leak Assessment Report, identified first-of-a-kind construction difficulties and trial-and-error repairs as major contributing factors to tank failure. To determine if improvements in double-shell tank (DST) construction occurred after construction of tank AY-102, a detailed review and evaluation of historical construction records were performed for the first three DST tank farms constructed, which included tanks 241-AY-101, 241-AZ-101, 241-AZ-102, 241-SY-101, 241-SY-102, and 241-SY-103. The review for these six tanks involved research and review of dozens of boxes of historical project documentation. These reviews form a basis to better understand the current condition of the three oldest Hanford DST farms. They provide a basis for changes to the current tank inspection program and also provide valuable insight into future tank use decisions. If new tanks are constructed in the future, these reviews provide valuable ?lessons-learned? information about expected difficulties as well as construction practices and techniques that are likely to be successful.

Venetz, Theodore J.; Johnson, Jeremy M.; Gunter, Jason R.; Barnes, Travis J.; Washenfelder, Dennis J.; Boomer, Kayle D.

2013-11-14T23:59:59.000Z

449

Estimate of the Distribution of Solids Within Mixed Hanford Double-Shell Tank AZ-101: Implications for AY-102  

SciTech Connect

This paper describes the current level of understanding of the suspension of solids in Hanford double-shell waste tanks while being mixed with the baseline configuration of two 300-horsepower mixer pumps. A mixer pump test conducted in Tank AZ-101 during fiscal year 2000 provided the basis for this understanding. Information gaps must be filled to demonstrate the capability of the baseline feed delivery system to effectively mix, sample, and deliver double-shell tank waste to the Hanford Tank Waste Treatment and Immobilization Plant (WTP) for vitrification.

Wells, Beric E.; Ressler, Jennifer J.

2009-04-29T23:59:59.000Z

450

Formation of core/shell-like ZnSe1?xTex nanocrystals due to equilibrium surface segregation  

Science Conference Proceedings (OSTI)

We report results of equilibrium surface segregation in ZnSe{sub 1?x}Te{sub x} nanocrystals based on a computational analysis of coupled compositional, structural, and volume relaxation of the nanocrystals that employs Monte Carlo and conjugate-gradient methods according to a first-principles-parameterized description of interatomic interactions. We have determined the equilibrium concentration distribution as a function of nanocrystal size and composition for nanocrystal morphologies that include faceted equilibrium crystal shapes. The results identify the nanoparticle size and composition ranges that allow for self-assembly of core/shell-like nanocrystal structures characterized by a Te-deficient core and a Te-rich shell.

Pandey, Sumeet C.; Mountziaris, T. J.; Venkataraman, Dhandapani; Maroudas, Dimitris

2010-01-01T23:59:59.000Z

451

Excitation spectra from angular momentum projection of Hartree-Fock states and the configuration-interaction shell-model  

E-Print Network (OSTI)

We make numerical comparison of spectra from angular-momentum projection on Hartree-Fock states with spectra from configuration-interaction nuclear shell-model calculations, all carried out in the same model spaces (in this case the sd, lower pf, and p-sd_5/2 shells) and using the same input Hamiltonians. We find, unsurprisingly, that the low-lying excitation spectra for rotational nuclides are well reproduced, but the spectra for vibrational nuclides, and more generally the complex specta for odd-A and odd-odd nuclides are less well reproduced in detail.

Joshua T. Staker; Calvin W. Johnson

2013-04-26T23:59:59.000Z

452

Simulation of the Bishop Steam Foam Pilot by T.W. Patzek and N.A. h4yhiil, Shell Development Co.  

E-Print Network (OSTI)

,.. SEW SPE 18786 Simulation of the Bishop Steam Foam Pilot by T.W. Patzek and N.A. h4yhiil, Shell a simple model of steam foam transport and apply it to the Shell Kern River Bishop pilot. The only an incremental 5.5 percent OOIP recovery due to steam foam and additional 3 percent OOIP due to infill wells

Patzek, Tadeusz W.

453

Oxygen Reduction Reaction on Dispersed and Core-Shell Metal Alloy Catalysts: Density Functional Theory Studies  

E-Print Network (OSTI)

Pt-based alloy surfaces are used to catalyze the electrochemical oxygen reduction reaction (ORR), where molecular oxygen is converted into water on fuel cell electrodes. In this work, we address challenges due to the cost of high Pt loadings in the cathode electrocatalyst, as well as those arising from catalyst durability. We aim to develop an increased understanding of the factors that determine ORR activity together with stability against surface segregation and dissolution of Pt-based alloys. We firstly focus on the problem of determining surface atomic distribution resulting from surface segregation phenomena. We use first-principles density functional theory (DFT) calculations on PtCo and Pt3Co overall compositions, as well as adsorption of water and atomic oxygen on PtCo(111) and Pt-skin structures. The bonding between water and surfaces of PtCo and Pt-skin monolayers are investigated in terms of orbital population. Also, on both surfaces, the surface reconstruction effect due to high oxygen coverage and water co-adsorption is investigated. Although the PtCo structures show good activity, a large dissolution of Co atoms tends to occur in acid medium. To tackle this problem, we examine core-shell structures which showed improved stability and activity compared to Pt(111), in particular, one consisting of a surface Pt-skin monolayer over an IrCo or Ir3Co core, with or without a Pd interlayer between the Pt surface and the Ir-Co core. DFT analysis of surface segregation, surface stability against dissolution, surface Pourbaix diagrams, and reaction mechanisms provide useful predictions on catalyst durability, onset potential for water oxidation, surface atomic distribution, coverage of oxygenated species, and activity. The roles of the Pd interlayer in the core-shell structures that influence higher ORR activity are clarified. Furthermore, the stability and activity enhancement of new shell-anchor-core structures of Pt/Fe-C/core, Pt/Co-C/core and Pt/Ni-C/core are demonstrated with core materials of Ir, Pd3Co, Ir3Co, IrCo and IrNi. Based on the analysis, Pt/Fe-C/Ir, Pt/Co-C/Ir, Pt/Ni-C/Ir, Pt/Co-C/Pd3Co, Pt/Fe-C/Pd3Co, Pt/Co- C/Ir3Co, Pt/Fe-C/Ir3Co, Pt/Co-C/IrCo, Pt/Co-C/IrNi, and Pt/Fe-C/IrNi structures show promise in terms of both improved durability and relatively high ORR activity.

Hirunsit, Pussana

2010-08-01T23:59:59.000Z

454

HANFORD DOUBLE SHELL TANK (DST) THERMAL & SEISMIC PROJECT BUCKLING EVALUATION METHODS & RESULTS FOR THE PRIMARY TANKS  

Science Conference Proceedings (OSTI)

This report documents a detailed buckling evaluation of the primary tanks in the Hanford double-shell waste tanks (DSTs), which is part of a comprehensive structural review for the Double-Shell Tank Integrity Project. This work also provides information on tank integrity that specifically responds to concerns raised by the Office of Environment, Safety, and Health (ES&H) Oversight (EH-22) during a review of work performed on the double-shell tank farms and the operation of the aging waste facility (AWF) primary tank ventilation system. The current buckling review focuses on the following tasks: (1) Evaluate the potential for progressive I-bolt failure and the appropriateness of the safety factors that were used for evaluating local and global buckling. The analysis will specifically answer the following questions: (a) Can the EH-22 scenario develop if the vacuum is limited to -6.6-inch water gage (w.g.) by a relief valve? (b) What is the appropriate factor of safety required to protect against buckling if the EH-22 scenario can develop? (c) What is the appropriate factor of safety required to protect against buckling if the EH-22 scenario cannot develop? (2) Develop influence functions to estimate the axial stresses in the primary tanks for all reasonable combinations of tank loads, based on detailed finite element analysis. The analysis must account for the variation in design details and operating conditions between the different DSTs. The analysis must also address the imperfection sensitivity of the primary tank to buckling. (3) Perform a detailed buckling analysis to determine the maximum allowable differential pressure for each of the DST primary tanks at the current specified limits on waste temperature, height, and specific gravity. Based on the I-bolt loads analysis and the small deformations that are predicted at the unfactored limits on vacuum and axial loads, it is very unlikely that the EH-22 scenario (i.e., progressive I-bolt failure leading to global buckling of the tank under increased vacuum) could occur.

MACKEY TC; JOHNSON KI; DEIBLER JE; PILLI SP; RINKER MW; KARRI NK

2007-02-14T23:59:59.000Z

455

Final Report One-Twelfth-Scale Mixing Experiments to Characterize Double-Shell Tank Slurry Uniformity  

Science Conference Proceedings (OSTI)

The objectives of these 1/12-scale scoping experiments were to ? Determine which of the dimensionless parameters discussed in Bamberger and Liljegren (1994) affect the maximum concentration that can be suspended during jet mixer pump operation in the full-scale double-shell tanks ? Develop empirical correlations to predict the nozzle velocity required for jet mixer pumps to suspend the contents of full-scale double-shell tanks ? Apply the models to predict the nozzle velocity required to suspend the contents of Tank 241 AZ-101 ? Obtain experimental concentration data to compare with the TEMPEST( )(Trent and Eyler 1989) computational modeling predictions to guide further code development ? Analyze the effects of changing nozzle diameter on exit velocity (U0) and U0D0 (the product of the exit velocity and nozzle diameter) required to suspend the contents of a tank. The scoping study experimentally evaluated uniformity in a 1/12-scale experiment varying the Reynolds number, Froude number, and gravitational settling parameter space. The initial matrix specified only tests at 100% U0D0 and 25% U0D0. After initial tests were conducted with small diameter, low viscosity simulant this matrix was revised to allow evaluation of a broader range of U0D0s. The revised matrix included full factorial test between 100% and 50% U0D0 and two half-factorial tests at 75% and 25% U0D0. Adding points at 75% U0D0 and 50% U0D0 allowed evaluation curvature. Eliminating points at 25% U0D0 decreased the testing time by several weeks. Test conditions were achieved by varying the simulant viscosity, the mean particle size, and the jet nozzle exit velocity. Concentration measurements at sampling locations throughout the tank were used to assess the degree of uniformity achieved during each test. Concentration data was obtained using a real time ultrasonic attenuation probe and discrete batch samples. The undissolved solids concentration at these locations was analyzed to determine whether the tank contents were uniform ( ±10% variation about mean) in concentration. Concentration inhomogeneity was modeled as a function of dimensionless groups. The two parameters that best describe the maximum solids volume fraction that can be suspended in a double-shell tank were found to be 1) the Froude number (Fr) based on nozzle velocity (U0) and tank contents level (H) and 2) the dimensionless particle size (dp/D0). The dependence on the Reynolds number (Re) does not appear to be statistically significant.

Bamberger, Judith A.; Liljegren, Lucia M.; Enderlin, Carl W.; Meyer, Perry A.; Greenwood, Margaret S.; Titzler, Pamela A.; Terrones, Guillermo

2007-09-01T23:59:59.000Z

456

STATEMENT OF CONSIDERATIONS REQUEST BY SHELL SOLAR INDUSTRIES LP FOR AN ADVANCE WAIVER OF  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

ZAX-5-33628-07 ENTITLED "MANUFACTURING IMPROVEMENTS IN Cz SILICON ZAX-5-33628-07 ENTITLED "MANUFACTURING IMPROVEMENTS IN Cz SILICON MODULE PRODUCTION;" UNDER DOE CONTRACT NO. DE-AC36-98GO10337; W(A)-05-060; CH-1346 As set out in the attached waiver petition and in subsequent discussions with DOE Patent Counsel, Shell Solar Industries LP (SSI) has requested an advance waiver of domestic and foreign patent rights for all subject inventions made under the above-identified subcontract by its employees and its subcontractors' employees, regardless of tier, except inventions made by subcontractors eligible to retain title to inventions pursuant to P.L. 96-517, as amended, and National Laboratories. Referring to item 2 of SSI's waiver petition, the purpose of this subcontract encompasses the development of improved photovoltaic (PV) manufacturing techniques

457

OVERVIEW OF ENHANCED HANFORD SINGLE-SHELL TANK (SST) INTEGRITY PROJECT - 12128  

SciTech Connect

To improve the understanding of the single-shell tanks integrity, Washington River Protection Solutions, LLC, the USDOE Hanford Site tank contractor, developed an enhanced Single-Shell Tank (SST) Integrity Project in 2009. An expert panel on SST integrity, consisting of various subject matters experts in industry and academia, was created to provide recommendations supporting the development of the project. This panel developed 33 recommendations in four main areas of interest: structural integrity, liner degradation, leak integrity and prevention, and mitigation of contamination migration, Seventeen of these recommendations were used to develop the basis for the M-45-10-1 Change Package for the Hanford Federal Agreement and Compliance Order, which is also known as the Tri-Party Agreement. The change package identified two phases of work for SST integrity. The initial phase has been focused on efforts to envelope the integrity of the tanks. The initial phase was divided into two primary areas of investigation: structural integrity and leak integrity. If necessary based on the outcome from the initial work, a second phase would be focused on further definition of the integrity of the concrete and liners. Combined these two phases are designed to support the formal integrity assessment of the Hanford SSTs in 2018 by Independent Qualified Registered Engineer. The work to further define the DOE's understanding of the structural integrity SSTs involves preparing a modern Analysis of Record using a finite element analysis program. Structural analyses of the SSTs have been conducted since 1957, but these analyses used analog calculation, less rigorous models, or focused on individual structures. As such, an integrated understanding of all of the SSTs has not been developed to modern expectations. In support of this effort, other milestones will address the visual inspection of the tank concrete and the collection of concrete core samples from the tanks for analysis of current mechanics properties. The work on the liner leak integrity has examined the leaks from 23 tanks with liner failures. Individual leak assessments are being developed for each tank to identify the leak cause and location. Also a common cause study is being performed to take the data from individual tanks to look for trends in the failure. Supporting this work is an assessment of the leak rate from tanks at both Hanford and the Savannah River Site and a new method to locate leak sites in tank liner using ionic conductivity. A separate activity is being conducted to examine the propensity for corrosion in select single shell tanks with aggressive waste layers. The work for these two main efforts will provide the basis for the phase two planning. If the margins identified aren't sufficient to ensure the integrity through the life of the mission, phase two would focus on activities to further enhance the understanding of tank integrity. Also coincident with any phase-two work would be the integrity analysis for the tanks, which would be complete in 2018. With delays in the completion of waste treatment facilities at Hanford, greater reliance on safe, continued storage of waste in the single shell tanks is increased in importance. The goal of integrity assessment would provide basis to continue SST activities till the end of the treatment mission.

VENETZ TJ; BOOMER KD; WASHENFELDER DJ; JOHNSON JB

2012-01-25T23:59:59.000Z

458

GaN/Fe core/shell nanowires for nonvolatile spintronics on Si  

SciTech Connect

We explore the relationship between the structural and magnetic properties of GaN/Fe core/shell nanowires grown epitaxially on Si substrates. The magnetic properties are consistent with the coexistence of two magnetic contributions: a ferromagnetic response from the single-crystalline Fe particles formed at the nanowire tips, and a superparamagnetic response originating from the granular Fe clusters grown on the nanowire sidewalls, giving them a corncob-like morphology. We show that our interpretation of the origin of the magnetic behavior can be confirmed by the viscous decay of magnetic remanence in the nanowires. Ferromagnetic remanence is observed both parallel and perpendicular to the nanowire axis, making such structures appealing as high-density nonvolatile spintronic components on Si.

Gao Cunxu; Farshchi, Rouin; Roder, Claudia; Dogan, Pinar; Brandt, Oliver [Paul-Drude-Institut fuer Festkoerperelektronik, Hausvogteiplatz 5-7, D-10117 Berlin (Germany)

2011-06-15T23:59:59.000Z

459

STATEMENT OF CONSIDERATIONS REQUEST BY SHELL SOLAR INDUSTRIES, LP FOR AN ADVANCE  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

INDUSTRIES, LP FOR AN ADVANCE INDUSTRIES, LP FOR AN ADVANCE WAIVER OF DOMESTIC AND FOREIGN PATENT RIGHTS UNDER NREL SUBCONTRACT NO. ZDJ-2-30630-16 UNDER DOE CONTRACT NO. DE-AC36-98GO10337; W(A)-03-010; CH-1136 As set out in the attached waiver petition and in subsequent discussions with DOE, Shell Solar Industries, LP (SSI) has requested an advance waiver of domestic and foreign patent rights for all subject inventions made under the above-identified cooperative agreement by its employees and its subcontractors' employees, regardless of tier, except inventions made by subcontractors eligible to retain title to inventions pursuant to P.L. 96-517, as amended, and National Laboratories. Referring to item 2 of SSl's waiver petition, the purpose of the subcontract encompasses the development of thin-film module processing and cell and module reliability.

460

STATEMENT OF CONSIDERATIONS REQUEST BY SHELL SOLAR SYSTEMS, LP FOR AN ADVANCE WAIVER OF  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

SYSTEMS, LP FOR AN ADVANCE WAIVER OF SYSTEMS, LP FOR AN ADVANCE WAIVER OF PATENT RIGHTS UNDER NREL SUBCONTRACT NO. ZDO-2-30628-06 ENTITLED "PV MANUFACTURING R&D-INTEGRATED CIS THIN-FILM MANUFACTURING INFRASTRUCTURE" UNDER DOE CONTRACT NO. DE- AC36-83CH10093; W(A)-02-039; CH-1116 As set out ins the attached waiver petition and in subsequent discussions with DOE Patent Counsel, Shell Solar Systems, LP (SSI) has requested an advance waiver of domestic and foreign patent rights for all subject inventions made under the above-identified subcontract by its employees and its subcontractors' employees, regardless of tier, except inventions made by subcontractors eligible to retain title to inventions pursuant to P.L. 98-517, as amended, and National Laboratories. Referring to item 2 of SSI's waiver petition, the purpose of this subcontract

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461

Tank characterization report for single-shell tank 241-BY-107  

Science Conference Proceedings (OSTI)

One major function of the Tank Waste Remediation System (TWRS) is to characterize wastes in support of waste management and disposal activities at the Hanford Site. Analytical data from sampling and analysis and other information about a tank are compiled and maintained in a tank characterization report (TCR). This report and its appendices serve as the TCR for single-shell tank 241-BY-107. The objectives of this report are (1) to use characterization data in response to technical issues associated with 241-BY-107 waste, and (2) to provide a standard characterization of this waste in terms of a best-basis inventory estimate. Section 2.0 summarizes the response to technical issues, Section 3.0 provides the best-basis inventory estimate, and Section 4.0 makes recommendations about the safety status and additional sampling needs. The appendices contain supporting data and information.

Mccain, D.J.

1997-04-09T23:59:59.000Z

462

Data Observations on Double Shell Tank (DST) Flammable Gas Watch List Tank Behavior  

DOE Green Energy (OSTI)

This report provides the data from the retained gas sampler, void fraction instrument, ball rheometer, standard hydrogen monitoring system, and other tank data pertinent to gas retention and release behavior in the waste stored in double-shelled Flammable Gas Watch List tanks at Hanford. These include tanks 241-AN-103,241-AN-104, 241-AN-105, 241-AW-101, 241-SY-101, and 241-SY-103. The tanks and the waste they contain are described in terms of fill history and chemistry. The results of mixer pump operation and recent waste transfers and back-dilution in SY-101 are also described. In-situ measurement and monitoring systems are described and the data are summarized under the categories of thermal behavior, waste configuration and properties, gas generation and composition, gas retention and historical gas release behavior.

HEDENGREN, D.C.

2000-09-28T23:59:59.000Z

463

Reaction-in-Flight Neutrons as a Signature for Shell Mixing in NIF capsules  

E-Print Network (OSTI)

We present analytic calculations and results from computational simulations showing that reaction-in-flight (RIF) neutrons act as a robust indicator for mixing of the ablator shell material into the fuel in DT capsules designed for the National Ignition Facility. The sensitivity of RIF neutrons to hydrodynamical mixing arises through the dependence of RIF production on charged-particle stopping lengths in the mixture of DT fuel and ablator material. Since the stopping power in the plasma is a sensitive function of the electron temperature and density, it is also sensitive to mix. RIF production scales approximately inversely with the degree of mixing taking place, and the ratio of RIF to downscattered neutrons provides a measure of the mix fraction and/or the mixing length. For sufficiently high-yield capsules, where spatially resolved RIF images may be possible, neutron imaging could be used to map RIF images into detailed mix images.

A. C. Hayes; P. A. Bradley; G. P. Grim; Gerard Jungman; J. B. Wilhelmy

2009-07-17T23:59:59.000Z

464

Rotational damping in a multi-$j$ shell particles-rotor model  

E-Print Network (OSTI)

The damping of collective rotational motion is investigated by means of particles-rotor model in which the angular momentum coupling is treated exactly and the valence nucleons are in a multi-$j$ shell mean-field. It is found that the onset energy of rotational damping is around 1.1 MeV above yrast line, and the number of states which form rotational band structure is thus limited. The number of calculated rotational bands around 30 at a given angular momentum agrees qualitatively with experimental data. The onset of rotational damping takes place gradually as a function of excitation energy. It is shown that the pairing correlation between valence nucleons has a significant effect on the appearance of rotational damping.

Lu Guo; Jie Meng; Enguang Zhao; Fumihiko Sakata

2004-07-25T23:59:59.000Z

465

Inner-Shell Photon-Ionized X-Ray Laser at 45(Angstrom)  

Science Conference Proceedings (OSTI)

This report summarizes the major accomplishments of this three-year Laboratory Directed Research and Development (LDRD) Lab Wide (LW) project entitled, ''An Inner-Shell Photo-Ionized X-Ray Laser at 45 {angstrom}'', tracking code 99-LW-042. The most significant accomplishments of this project include the design of a suitable x-ray laser target, the invention of a measurement technique for the determination of rise times of x-ray pulses on the order of 50 femtoseconds, and a novel setup for generating a traveling wave with an ultrashort optical laser pulse. The pump probe technique for rise time measurement will allow us to detect ultrashort x-ray pulses, whose generation by means of a variety of 4th generation light sources is currently under planning elsewhere.

Weber, F; Celliers, P; Moon, S; Snavely, R; Da Silva, L

2002-02-01T23:59:59.000Z

466