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Note: This page contains sample records for the topic "dayton hilltop microwave" 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
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1

Hilltop Wind Farm | Open Energy Information  

Open Energy Info (EERE)

Hilltop Wind Farm Hilltop Wind Farm Jump to: navigation, search Name Hilltop Wind Farm Facility Hilltop Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Hilltop Power LLC Developer Hilltop Power LLC Energy Purchaser Xcel Energy Location Pipestone MN Coordinates 43.9985815°, -96.3128117° 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":43.9985815,"lon":-96.3128117,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

2

Dayton | OpenEI  

Open Energy Info (EERE)

6 6 Varnish cache server Browse Upload data GDR 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation: XID: 2142281596 Varnish cache server Dayton Dataset Summary Description This is a non-proprietary subset of DOE's Buildings Performance Database. Buildings from the cities of Dayton, OH and Gainesville, FL areas are provided as an example of the data in full database. Sample data here is formatted as CSV Source Department of Energy's Buildings Performance Database Date Released July 09th, 2012 (2 years ago) Date Updated Unknown Keywords Buildings Performance Database Dayton Electricity Gainesville Natural Gas open data Residential Data application/zip icon BPD Dayton and Gainesville Residential csv files in a zip file (zip, 2.8 MiB)

3

Junction Hilltop Wind | Open Energy Information  

Open Energy Info (EERE)

Junction Hilltop Wind Junction Hilltop Wind Jump to: navigation, search Name Junction Hilltop Wind Facility Junction Hilltop Wind Sector Wind energy Facility Type Community Wind Facility Status In Service Owner Community Owned Developer Tom Wind & Bill Sutton Energy Purchaser Interstate Power and Light (Alliant Energy) Location Grand Junction IA Coordinates 42.04671131°, -94.23969269° 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":42.04671131,"lon":-94.23969269,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

4

University of Dayton Research Institute | Open Energy Information  

Open Energy Info (EERE)

Dayton Research Institute Jump to: navigation, search Name University of Dayton Research Institute Address 300 College Park Place Dayton, Ohio Zip 45469-0101 Website http:...

5

Hardin-Hilltop Wind Project | Open Energy Information  

Open Energy Info (EERE)

Hardin-Hilltop Wind Project Hardin-Hilltop Wind Project Jump to: navigation, search Name Hardin-Hilltop Wind Project Facility Hardin-Hilltop Wind Project Sector Wind energy Facility Type Community Wind Facility Status In Service Owner Community wind Developer Community wind Energy Purchaser Alliant Location Greene County IA Coordinates 42.086204°, -94.349999° 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":42.086204,"lon":-94.349999,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

6

Dayton: ENERGY STAR Referral (5NTX1) | Department of Energy  

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

Dayton: ENERGY STAR Referral (5NTX1) Dayton: ENERGY STAR Referral (5NTX1) December 22, 2011 DOE referred the matter of Dayton-brand refrigerator-freezer model 5NTX1, which is...

7

DOE - Office of Legacy Management -- Dayton Project Unit 6 -...  

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

Dayton Project Unit 6 - Scioto Laboratory - OH 45A FUSRAP Considered Sites Site: Dayton Project (Unit 6) - Scioto Laboratory (OH.45A) No further action determination pending...

8

DOE - Office of Legacy Management -- Duriron Co - Dayton - OH 49  

Office of Legacy Management (LM)

Duriron Co - Dayton - OH 49 Duriron Co - Dayton - OH 49 FUSRAP Considered Sites Site: Duriron Co. - Dayton (OH.49 ) Eliminated from further consideration under FUSRAP Designated Name: Not Designated Alternate Name: None Location: Dayton , Ohio OH.49-1 Evaluation Year: 1991 OH.49-2 Site Operations: Production of stainless steel for use at Fernald using contaminated scrap Nickel. OH.49-1 Site Disposition: Eliminated - Limited scope of activities performed there - Potential for residual radioactive contamination is considered remote OH.49-2 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Contaminated Scrap Nickel OH.49-1 Radiological Survey(s): None Indicated Site Status: Eliminated from further consideration under FUSRAP Also see Documents Related to Duriron Co. - Dayton

9

Dayton Power and Light - Residential Energy Efficiency Rebate Program |  

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

Dayton Power and Light - Residential Energy Efficiency Rebate Dayton Power and Light - Residential Energy Efficiency Rebate Program Dayton Power and Light - Residential Energy Efficiency Rebate Program < Back Eligibility Residential Savings Category Heating & Cooling Commercial Heating & Cooling Cooling Heat Pumps Appliances & Electronics Commercial Lighting Lighting Program Info State Ohio Program Type Utility Rebate Program Rebate Amount Refrigerator Recycling: $25 Freezer Recycling: $25 HVAC Tune-Up: $25 credit CFL's: $1.40 average off of each bulb purchased at participating stores Air Conditioning: $100 - $300, varies by efficiency and equipment application Air Source Heat Pump: $200 - $600, varies by efficiency and equipment application Geothermal Heat Pump: $200 - $600, varies by efficiency and equipment

10

City of Dayton, Tennessee (Utility Company) | Open Energy Information  

Open Energy Info (EERE)

Dayton Dayton Place Tennessee Utility Id 4920 Utility Location Yes Ownership M NERC Location SERC NERC SERC Yes 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 GSA- Part 1 Commercial GSA- Part 2 Commercial GSA- Part 3 Industrial Outdoor Lighting Lighting Residential Rate Residential SDE-PSMSB Industrial Average Rates Residential: $0.0958/kWh Commercial: $0.0992/kWh Industrial: $0.0754/kWh References ↑ "EIA Form EIA-861 Final Data File for 2010 - File1_a" Retrieved from "http://en.openei.org/w/index.php?title=City_of_Dayton,_Tennessee_(Utility_Company)&oldid=40950

11

Dayton Power and Light - Business and Government Energy Efficiency Rebate  

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

Dayton Power and Light - Business and Government Energy Efficiency Dayton Power and Light - Business and Government Energy Efficiency Rebate Program Dayton Power and Light - Business and Government Energy Efficiency Rebate Program < Back Eligibility Agricultural Commercial Fed. Government Industrial Institutional Local Government Nonprofit Schools State Government Tribal Government Savings Category Heating & Cooling Commercial Heating & Cooling Cooling Appliances & Electronics Manufacturing Other Construction Heat Pumps Commercial Lighting Lighting Water Heating Program Info State Ohio Program Type Utility Rebate Program Rebate Amount Custom Lighting: $0.05/kWh saved + $50/kW saved Custom Heating, Ventilation and Air Conditioning: $0.10/kWh saved + $100/kW saved Custom Other: $0.08/kWh saved + $100/kW saved New Construction Rebates: Custom

12

Dayton Power & Light Co | Open Energy Information  

Open Energy Info (EERE)

Dayton Power & Light Co Dayton Power & Light Co Jump to: navigation, search Name Dayton Power & Light Co Place Ohio Utility Id 4922 Utility Location Yes Ownership I NERC Location RFC NERC RFC Yes RTO PJM Yes Operates Generating Plant Yes Activity Generation Yes Activity Transmission Yes Activity Buying Transmission Yes Activity Distribution Yes Activity Wholesale Marketing Yes Alt Fuel Vehicle Yes Alt Fuel Vehicle2 Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] Energy Information Administration Form 826[2] 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 RS - D17 Residential Average Rates Residential: $0.0404/kWh Commercial: $0.0167/kWh

13

City of Dayton, Iowa (Utility Company) | Open Energy Information  

Open Energy Info (EERE)

Dayton, Iowa (Utility Company) Dayton, Iowa (Utility Company) Jump to: navigation, search Name Dayton City of Place Iowa Utility Id 4919 Utility Location Yes Ownership M NERC Location MRO NERC ERCOT Yes NERC MRO Yes Operates Generating Plant Yes Activity Generation Yes Activity Distribution Yes Activity Retail Marketing Yes Activity Bundled Services 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 Electric Heat Commercial Industrial Industrial Large Commercial Commercial Residential Residential Residential Electric Heat Residential Small Commercial Commercial Average Rates Residential: $0.1290/kWh

14

Secretary Chu and Governor Dayton to Announce Major Recovery Act Milestone  

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

Governor Dayton to Announce Major Recovery Act Governor Dayton to Announce Major Recovery Act Milestone Secretary Chu and Governor Dayton to Announce Major Recovery Act Milestone December 15, 2011 - 9:19am Addthis Washington, DC - U.S. Energy Secretary Steven Chu will host a conference call with Minnesota Governor Mark Dayton to announce a major American Recovery and Reinvestment Act milestone for the Department of Energy's Weatherization Assistance Program. WHAT: Energy Secretary Steven Chu will be joined by Governor Dayton to make an announcement on the Department's weatherization program accomplishment WHEN: Today, Thursday, December 15, 2011 12:45 PM EST RSVP: Media wishing to join the call should contact Niketa Kumar at niketa.kumar@hq.doe.gov Addthis Related Articles Secretary Chu to Host Media Briefing on Energy Department FY 2013 Budget

15

DOE - Office of Legacy Management -- Dayton Project Units 3 and 4 - OH 07  

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

Dayton Project Units 3 and 4 - OH Dayton Project Units 3 and 4 - OH 07 FUSRAP Considered Sites Site: Dayton Project Units 3 & 4 (OH.07 ) U.S. Army Corps of Engineers (FUSRAP) - No Further Action Designated Name: Not Designated Alternate Name: Monsanto Units III and IV Unit III - Board of Education Maintenance Facility Unit IV - Runnymede Playhouse OH.07-1 OH.07-2 OH.07-3 Location: Unit III - 1601 W. First Street Unit IV - Runnymede Road and Dixon Avenue , Dayton , Ohio OH.07-4 OH.07-5 Evaluation Year: 1987 Site Operations: October 1943 to mid-1950 - AEC conducted research and manufactured Polonium by lead dioxide and bismuth processes OH.07-4 Site Disposition: Eliminated - radiation levels below criteria. OH.07-9 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Polonium OH.07-1

16

Ohio Envhnmental Protection ~geacy PRS 322 Dayton Unit III Soil screening Result0 Report  

Office of Legacy Management (LM)

Ohio Envhnmental Protection ~geacy Ohio Envhnmental Protection ~geacy PRS 322 Dayton Unit III Soil screening Result0 Report hbruaty, 1998 Ewcutive !hmmaiy PRS 322 (Dayton Unit III) is one of over 400 PRs' s (Potcnri4 &lease Sires) included in IIIC DOE Mmiamisburg Environment4 Managema Project (MEMP) Mound clesiu~p dceisioa-a suatcgy known aa "Mound 2000". PRS 333 is loeared ia rbe Cjry of Dayron apd is owned and occupied by the Dqmn Board of Education history of polonium-2 10 The site has a processing rbar occwed during &e fkder4 governmenz' s h4' anham Projecr. Beeawe no known analytical soil sumpline dam bad been cokcr~ for the site, fW.ber infbnnzui~n was needed to dcrerzninc if' rhc site is conrzuniru~~L DOE MEMP, USEPA, Ohio EPA and the city of Dmn agreed that Ohio JZPA would sample

17

Microsoft Word - CX-DaytonTapRetirementFY13_WEB.doc  

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

3 3 REPLY TO ATTN OF: KEPR-Bell-1 SUBJECT: Environmental Clearance Memorandum Aaron Evans Project Manager - TEP-TPP-1 Proposed Action: Dayton Tap Line Retirement PP&A Project No: 2735 Categorical Exclusion Applied (from Subpart D, 10 C.F.R. Part 1021): B4.10 Deactivation, dismantling, and removal of electric powerlines, substations, switching stations, and other transmission facilities, and right-of-way abandonment Location: The project is located in Columbia County, Washington, in Township 10 North, Range 39 East, Section 20. Proposed by: Bonneville Power Administration (BPA) Description of the Proposed Action: BPA proposes to retire and remove the Dayton Tap Line (and associated components) and fund PacifiCorp's removal of associated equipment. The

18

CX-003027: Categorical Exclusion Determination | Department of Energy  

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

27: Categorical Exclusion Determination 27: Categorical Exclusion Determination CX-003027: Categorical Exclusion Determination The Replacement of PacifiCorp's Kennewick - Dayton Hilltop Microwave Communication Equipment CX(s) Applied: B1.7, B4.6 Date: 06/22/2010 Location(s): Benton County, Washington Office(s): Bonneville Power Administration The single channel radio hop between the Bonneville Power Administration (BPA)-owned Kennewick Radio Station and PacifiCorp-owned Dayton Radio Station would be replaced by PacifiCorp with a 28 DS1 digital radio system. The path length is 62 miles, requiring a space diversity system to be installed. The radio at Dayton would be a Harris Constellation terminal, installed in rack D2 underneath the Hinkle Truepoint Radio. At Kennewick the main and diversity antennas would be Andrew UHX8-65, mounted on the BPA

19

Microwave detector  

DOE Patents (OSTI)

A microwave detector is provided for measuring the envelope shape of a microwave pulse comprised of high-frequency oscillations. A biased ferrite produces a magnetization field flux that links a B-dot loop. The magnetic field of the microwave pulse participates in the formation of the magnetization field flux. High-frequency insensitive means are provided for measuring electric voltage or current induced in the B-dot loop. The recorded output of the detector is proportional to the time derivative of the square of the envelope shape of the microwave pulse.

Meldner, H.W.; Cusson, R.Y.; Johnson, R.M.

1985-02-08T23:59:59.000Z

20

Microwave detector  

SciTech Connect

A microwave detector (10) is provided for measuring the envelope shape of a microwave pulse comprised of high-frequency oscillations. A biased ferrite (26, 28) produces a magnetization field flux that links a B-dot loop (16, 20). The magnetic field of the microwave pulse participates in the formation of the magnetization field flux. High-frequency insensitive means (18, 22) are provided for measuring electric voltage or current induced in the B-dot loop. The recorded output of the detector is proportional to the time derivative of the square of the envelope shape of the microwave pulse.

Meldner, Heiner W. (Moss Beach, CA); Cusson, Ronald Y. (Chapel Hill, NC); Johnson, Ray M. (San Ramon, CA)

1986-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "dayton hilltop microwave" 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

Microsoft Word - Kennewick Site-PacifiCorp_CX.doc  

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

June 22, 2010 June 22, 2010 REPLY TO ATTN OF: KEC-4 SUBJECT: Environmental Clearance Memorandum Cynthia Rounds - TPC-TPP-4 Project Manager Proposed Action: The replacement of PacifiCorp's Kennewick - Dayton Hilltop microwave communication equipment. Budget Information: N/A Categorical Exclusion Applied (from Subpart D, 10 C.F.R. Part 1021): B1.7 "Acquisition, installation, operation, and removal of communication systems, data processing equipment, and similar electronic equipment." B4.6: "Additions or modifications to electric power transmission facilities that would not affect the environment beyond the previously developed facility area..." Location: Benton County, Washington Proposed by: Bonneville Power Administration (BPA)

22

Microwave furnace having microwave compatible dilatometer  

DOE Patents (OSTI)

An apparatus for measuring and monitoring a change in the dimension of a sample being heated by microwave energy is described. The apparatus comprises a microwave heating device for heating a sample by microwave energy, a microwave compatible dilatometer for measuring and monitoring a change in the dimension of the sample being heated by microwave energy without leaking microwaves out of the microwave heating device, and a temperature determination device for measuring and monitoring the temperature of the sample being heated by microwave energy. 2 figs.

Kimrey, H.D. Jr.; Janney, M.A.; Ferber, M.K.

1992-03-24T23:59:59.000Z

23

Community Action Partnership of the Greater Dayton Area … Weatherization Assistance Program Funds Provided by the American Recovery and Reinvestment Act of 2009, OAS-RA-11-18  

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

Community Action Partnership of the Community Action Partnership of the Greater Dayton Area - Weatherization Assistance Program Funds Provided by the American Recovery and Reinvestment Act of 2009 OAS-RA-11-18 September 2011 Department of Energy Washington, DC 20585 September 29, 2011 MEMORANDUM FOR THE ACTING ASSISTANT SECRETARY FOR ENERGY EFFICIENCY AND RENEWABLE ENERGY FROM: Rickey R. Hass Deputy Inspector General for Audits and Inspections Office of Inspector General SUBJECT: INFORMATION: Examination Report on "Community Action Partnership of the Greater Dayton Area - Weatherization Assistance Funds Provided by the American Recovery and Reinvestment Act of 2009" BACKGROUND The attached report presents the results of an examination of the Community Action Partnership

24

Dayton T. Brown, Inc.  

Science Conference Proceedings (OSTI)

... Revision F (March 12, 2004) Aircraft, Electric Power Characteristics. ... Characteristics of 28 Volts DC Electrical Systems in Military Vehicles. ...

2013-08-23T23:59:59.000Z

25

Business benefits of wellhead protection. Case studies: Dayton, Ohio; Xenia, Ohio; and Pekin, Illinois. Source water protection business and economic series No. 1  

SciTech Connect

Business participation is a critical factor for three succesful local wellhead and ground water protection programs in Dayton and Xenia, Ohio and Pekin, Illinois. They offer three different wellhead and ground water protection models but show common themes for business involvement and benefits. Bottom-line benefits highlighted by several companies include: process changes that saved operating costs not previously anticipated; maintaining water quality that keep industrial water treatment costs down; and knowing the exact storage location of chemicals which keep emergency response costs down and allowed better management of existing chemical stocks. All companies indicated that being within the wellhead protection area (WHPA) caused them to be conscious of chemical use and thereby reduced liability from releases through better chemical management. Early involvement by business minimized local regulatory burden and promoted education and protective activities at the same time.

Job, C.A.

1995-10-27T23:59:59.000Z

26

Boiling Water in Microwave  

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

Boiling Water in Microwave A 26-year old man decided to have a cup of coffee. He took a cup of water and put it in the microwave to heat it up (something that he had done numerous...

27

Microwave Radiometer (MWR) Handbook  

SciTech Connect

The Microwave Radiometer (MWR) provides time-series measurements of column-integrated amounts of water vapor and liquid water. The instrument itself is essentially a sensitive microwave receiver. That is, it is tuned to measure the microwave emissions of the vapor and liquid water molecules in the atmosphere at specific frequencies.

Morris, VR

2006-08-01T23:59:59.000Z

28

Microwave hemorrhagic stroke detector  

DOE Patents (OSTI)

The microwave hemorrhagic stroke detector includes a low power pulsed microwave transmitter with a broad-band antenna for producing a directional beam of microwaves, an index of refraction matching cap placed over the patients head, and an array of broad-band microwave receivers with collection antennae. The system of microwave transmitter and receivers are scanned around, and can also be positioned up and down the axis of the patients head. The microwave hemorrhagic stroke detector is a completely non-invasive device designed to detect and localize blood pooling and clots or to measure blood flow within the head or body. The device is based on low power pulsed microwave technology combined with specialized antennas and tomographic methods. The system can be used for rapid, non-invasive detection of blood pooling such as occurs with hemorrhagic stoke in human or animal patients as well as for the detection of hemorrhage within a patient's body.

Haddad, Waleed S. (Dublin, CA); Trebes, James E. (Livermore, CA)

2007-06-05T23:59:59.000Z

29

Microwave Processing of Materials  

Science Conference Proceedings (OSTI)

Furthermore, lower energy consumption is another aspect that the world should consider to cope with this matter. Microwave processing of materials is a clean,...

30

DRAFT Microwave Radiometer Profiler Handbook  

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

Microwave Radiometer Profiler Handbook Evaluation of a New Multi-Frequency Microwave Radiometer for Measuring the Vertical Distribution of Temperature, Water Vapor, and Cloud...

31

Page not found | Department of Energy  

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

51 - 24560 of 31,917 results. 51 - 24560 of 31,917 results. Download CX-003027: Categorical Exclusion Determination The Replacement of PacifiCorp?s Kennewick ? Dayton Hilltop Microwave Communication Equipment CX(s) Applied: B1.7, B4.6 Date: 06/22/2010 Location(s): Benton County, Washington Office(s): Bonneville Power Administration http://energy.gov/nepa/downloads/cx-003027-categorical-exclusion-determination Download CX-003091: Categorical Exclusion Determination Transfer Agreement between Bonneville Power Administration and Puget Sound Energy, Incorporated CX(s) Applied: B4.8 Date: 06/09/2010 Location(s): Portland, Oregon Office(s): Bonneville Power Administration http://energy.gov/nepa/downloads/cx-003091-categorical-exclusion-determination Download CX-002768: Categorical Exclusion Determination

32

Categorical Exclusion (CX) Determinations By Date | Department of Energy  

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

3, 2010 3, 2010 CX-002796: Categorical Exclusion Determination Clean Cities Transportation Sector Petroleum Reduction Technologies Program CX(s) Applied: B5.1 Date: 06/23/2010 Location(s): Naples, Utah Office(s): Energy Efficiency and Renewable Energy, National Energy Technology Laboratory June 23, 2010 CX-002792: Categorical Exclusion Determination Massachusetts-City-Taunton CX(s) Applied: B1.32, B2.5, A9, A11, B5.1 Date: 06/23/2010 Location(s): Taunton, Massachusetts Office(s): Energy Efficiency and Renewable Energy June 22, 2010 CX-003027: Categorical Exclusion Determination The Replacement of PacifiCorp?s Kennewick ? Dayton Hilltop Microwave Communication Equipment CX(s) Applied: B1.7, B4.6 Date: 06/22/2010 Location(s): Benton County, Washington Office(s): Bonneville Power Administration

33

"1. General James M Gavin","Coal","Ohio Power Co",2640 "2. J M Stuart","Coal","Dayton Power & Light Co",2317  

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

Ohio" Ohio" "1. General James M Gavin","Coal","Ohio Power Co",2640 "2. J M Stuart","Coal","Dayton Power & Light Co",2317 "3. W H Sammis","Coal","FirstEnergy Generation Corp",2233 "4. Cardinal","Coal","Cardinal Operating Co",1800 "5. Conesville","Coal","Columbus Southern Power Co",1695 "6. Muskingum River","Coal","Ohio Power Co",1375 "7. Walter C Beckjord","Coal","Duke Energy Ohio Inc",1304 "8. W H Zimmer","Coal","Duke Energy Ohio Inc",1300 "9. Hanging Rock Energy Facility","Gas","Duke Energy Ohio Inc",1288

34

Microwaves and Bacteria  

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

Microwaves and Bacteria Microwaves and Bacteria Name: mike Location: N/A Country: N/A Date: N/A Question: Do the microwaves in a microwave kill bacteria or is it the heat that kills the bacteria? I am wondering this because i have a science fair project and i am searching for a project dealing with bacteria. Replies: As far as I'm aware it is the heat that kill bacteria in a microwave, and they need quite some time to be dead. The spores that some kind of bacteria make to survive harsh conditions do not contain much water and they might survive microwaves. I'm not sure what bacteria do that can survive high dosis of radiation, like Deinococcus radiodurans. They can do this by a very efficient repair system for their DNA. My guess is that they would also be killed by the heat generated in a microwave but I haven't found any data on this.

35

Cosmic Microwave Background Project at NERSC  

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

Cosmic Microwave Background Cosmic Microwave Background CMB.jpg The Cosmic Microwave Background (CMB) is relic radiation from a very early stage in the universe -- essentially a...

36

Microwave coupler and method  

DOE Patents (OSTI)

The present invention is directed to a microwave coupler for enhancing the heating or metallurgical treatment of materials within a cold-wall, rapidly heated cavity as provided by a microwave furnace. The coupling material of the present invention is an alpha-rhombohedral-boron-derivative-structure material such as boron carbide or boron silicide which can be appropriately positioned as a susceptor within the furnace to heat other material or be in powder particulate form so that composites and structures of boron carbide such as cutting tools, grinding wheels and the like can be rapidly and efficiently formed within microwave furnaces.

Holcombe, C.E.

1984-11-29T23:59:59.000Z

37

Microwave fluid flow meter  

DOE Patents (OSTI)

A microwave fluid flow meter is described utilizing two spaced microwave sensors positioned along a fluid flow path. Each sensor includes a microwave cavity having a frequency of resonance dependent upon the static pressure of the fluid at the sensor locations. The resonant response of each cavity with respect to a variation in pressure of the monitored fluid is represented by a corresponding electrical output which can be calibrated into a direct pressure reading. The pressure drop between sensor locations is then correlated as a measure of fluid velocity. In the preferred embodiment the individual sensor cavities are strategically positioned outside the path of fluid flow and are designed to resonate in two distinct frequency modes yielding a measure of temperature as well as pressure. The temperature response can then be used in correcting for pressure responses of the microwave cavity encountered due to temperature fluctuations.

Billeter, Thomas R. (Richland, WA); Philipp, Lee D. (Richland, WA); Schemmel, Richard R. (Lynchburg, VA)

1976-01-01T23:59:59.000Z

38

Emitron: microwave diode  

DOE Patents (OSTI)

The invention comprises a new class of device, driven by electron or other charged particle flow, for producing coherent microwaves by utilizing the interaction of electromagnetic waves with electron flow in diodes not requiring an external magnetic field. Anode and cathode surfaces are electrically charged with respect to one another by electron flow, for example caused by a Marx bank voltage source or by other charged particle flow, for example by a high energy charged particle beam. This produces an electric field which stimulates an emitted electron beam to flow in the anode-cathode region. The emitted electrons are accelerated by the electric field and coherent microwaves are produced by the three dimensional spatial and temporal interaction of the accelerated electrons with geometrically allowed microwave modes which results in the bunching of the electrons and the pumping of at least one dominant microwave mode.

Craig, G.D.; Pettibone, J.S.; Drobot, A.T.

1982-05-06T23:59:59.000Z

39

High power microwave generator  

DOE Patents (OSTI)

A microwave generator efficiently converts the energy of an intense relativistic electron beam (REB) into a high-power microwave emission using the Smith-Purcell effect which is related to Cerenkov radiation. Feedback for efficient beam bunching and high gain is obtained by placing a cylindrical Smith-Purcell transmission grating on the axis of a toroidal resonator. High efficiency results from the use of a thin cold annular highly-magnetized REB that is closely coupled to the resonant structure.

Ekdahl, C.A.

1983-12-29T23:59:59.000Z

40

High power microwave generator  

DOE Patents (OSTI)

A microwave generator efficiently converts the energy of an intense relativistic electron beam (REB) into a high-power microwave emission using the Smith-Purcell effect which is related to Cerenkov radiation. Feedback for efficient beam bunching and high gain is obtained by placing a cylindrical Smith-Purcell transmission grating on the axis of a toroidal resonator. High efficiency results from the use of a thin cold annular highly-magnetized REB that is closely coupled to the resonant structure.

Ekdahl, Carl A. (Albuquerque, NM)

1986-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "dayton hilltop microwave" 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

Microwaves in Biology, Environmental Studies and Chemistry  

Science Conference Proceedings (OSTI)

Oct 30, 2013... using Microwaves, Electric and Magnetic Fields, Ultrasound, Lasers, ... Power under Microwave Irradiated Cultivation: Wataru Nagayoshi1;...

42

Toward a Global Microwave Standard  

Science Conference Proceedings (OSTI)

... Weather and climate uses for microwave remote sensing measurements ... Sensing in PML's Electromagnetics Division, "new data coming from ...

2012-01-31T23:59:59.000Z

43

Microwave | OpenEI  

Open Energy Info (EERE)

Microwave Microwave Dataset Summary Description The following data-set is for a benchmark residential home for all TMY3 locations across all utilities in the US. The data is indexed by utility service provider which is described by its "unique" EIA ID ( Source National Renewable Energy Laboratory Date Released April 05th, 2012 (2 years ago) Date Updated April 06th, 2012 (2 years ago) Keywords AC apartment CFL coffeemaker Computer cooling cost demand Dishwasher Dryer Furnace gas HVAC Incandescent Laptop load Microwave model NREL Residential television tmy3 URDB Data text/csv icon Residential Cost Data for Common Household Items (csv, 14.5 MiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage Frequency Annually Time Period License License Open Data Commons Public Domain Dedication and Licence (PDDL)

44

Variable frequency microwave furnace system  

DOE Patents (OSTI)

A variable frequency microwave furnace system designed to allow modulation of the frequency of the microwaves introduced into a furnace cavity for testing or other selected applications. The variable frequency microwave furnace system includes a microwave signal generator or microwave voltage-controlled oscillator for generating a low-power microwave signal for input to the microwave furnace. A first amplifier may be provided to amplify the magnitude of the signal output from the microwave signal generator or the microwave voltage-controlled oscillator. A second amplifier is provided for processing the signal output by the first amplifier. The second amplifier outputs the microwave signal input to the furnace cavity. In the preferred embodiment, the second amplifier is a traveling-wave tube (TWT). A power supply is provided for operation of the second amplifier. A directional coupler is provided for detecting the direction of a signal and further directing the signal depending on the detected direction. A first power meter is provided for measuring the power delivered to the microwave furnace. A second power meter detects the magnitude of reflected power. Reflected power is dissipated in the reflected power load. 5 figs.

Bible, D.W.; Lauf, R.J.

1994-06-14T23:59:59.000Z

45

Local microwave background radiation  

E-Print Network (OSTI)

An inquiry on a possible local origin for the Microwave Background Radiation is made. Thermal MBR photons are contained in a system called {\\it magnetic bottle} which is due to Earth magnetic field and solar wind particles, mostly electrons. Observational tests are anticipated.

Domingos S. L. Soares

2006-07-11T23:59:59.000Z

46

Preparation of Hydroxyapatite by Microwave Heating  

Science Conference Proceedings (OSTI)

HAP powders were successfully prepared in a 2.45 GHz - 900W multimode home model microwave oven. The HAP powder was prepared by microwave heating...

47

Microwave sintering of multiple articles  

DOE Patents (OSTI)

Apparatus and method for producing articles of alumina and of alumina and silicon carbide in which the articles are sintered at high temperatures using microwave radiation. The articles are placed in a sintering container which is placed in a microwave cavity for heating. The rates at which heating and cooling take place is controlled.

Blake, Rodger D. (Santa Fe, NM); Katz, Joel D. (Los Alamos, NM)

1993-01-01T23:59:59.000Z

48

Microwave sintering of multiple aritcles  

DOE Patents (OSTI)

Disclosed are apparatus and method for producing articles of alumina and of alumina and silicon carbide in which the articles are sintered at high temperatures using microwave radiation. The articles are placed in a sintering container which is placed in a microwave cavity for heating. The rates at which heating and cooling take place is controlled.

Blake, R.D.; Katz, J.D.

1992-12-31T23:59:59.000Z

49

Microwave-driven ultraviolet light sources  

DOE Patents (OSTI)

A microwave-driven ultraviolet (UV) light source is provided. The light source comprises an over-moded microwave cavity having at least one discharge bulb disposed within the microwave cavity. At least one magnetron probe is coupled directly to the microwave cavity.

Manos, Dennis M. (Williamsburg, VA); Diggs, Jessie (Norfolk, VA); Ametepe, Joseph D. (Roanoke, VA)

2002-01-29T23:59:59.000Z

50

Differential Microwave Radiometer and the Cosmic Microwave Background |  

Office of Science (SC) Website

Differential Differential Microwave Radiometer and the Cosmic Microwave Background Laboratory Policy and Evaluation (LPE) LPE Home Staff M&O Contracts SC Laboratory Appraisal Process Laboratory Planning Process Work for Others in the Office of Science Laboratory Directed Research and Development (LDRD) DOE's Philosophy on LDRD Frequently Asked Questions Success Stories Brochures Additional Information LDRD Program Contacts Technology Transfer DOE National Laboratories Contact Information Laboratory Policy and Evaluation U.S. Department of Energy SC-32/Forrestal Building 1000 Independence Ave., SW Washington, DC 20585 P: (202) 586-5447 F: (202) 586-3119 Success Stories Differential Microwave Radiometer and the Cosmic Microwave Background Print Text Size: A A A RSS Feeds FeedbackShare Page

51

Gigatron microwave amplifier  

DOE Patents (OSTI)

An electron tube for achieving high power at high frequency with high efficiency, including an input coupler, a ribbon-shaped electron beam and a traveling wave output coupler. The input coupler is a lumped constant resonant circuit that modulates a field emitter array cathode at microwave frequency. A bunched ribbon electron beam is emitted from the cathode in periodic bursts at the desired frequency. The beam has a ribbon configuration to eliminate limitations inherent in round beam devices. The traveling wave coupler efficiently extracts energy from the electron beam, and includes a waveguide with a slot therethrough for receiving the electron beam. The ribbon beam is tilted at an angle with respect to the traveling wave coupler so that the electron beam couples in-phase with the traveling wave in the waveguide. The traveling wave coupler thus extracts energy from the electron beam over the entire width of the beam.

McIntyre, Peter M. (611 Montclair, College Station, TX 77840)

1993-01-01T23:59:59.000Z

52

Gigatron microwave amplifier  

DOE Patents (OSTI)

An electron tube for achieving high power at high frequency with high efficiency is described, including an input coupler, a ribbon-shaped electron beam and a traveling wave output coupler. The input coupler is a lumped constant resonant circuit that modulates a field emitter array cathode at microwave frequency. A bunched ribbon electron beam is emitted from the cathode in periodic bursts at the desired frequency. The beam has a ribbon configuration to eliminate limitations inherent in round beam devices. The traveling wave coupler efficiently extracts energy from the electron beam, and includes a waveguide with a slot there through for receiving the electron beam. The ribbon beam is tilted at an angle with respect to the traveling wave coupler so that the electron beam couples in-phase with the traveling wave in the waveguide. The traveling wave coupler thus extracts energy from the electron beam over the entire width of the beam.

McIntyre, P.M.

1993-07-13T23:59:59.000Z

53

VALIDATION OF MICROWAVE HEATING INSTRUCTIONS FOR THE DESTRUCTION OF Salmonella spp. IN MICROWAVEABLE FOODS.  

E-Print Network (OSTI)

??Microwave heating instructions for three products (chicken nuggets, turkey pot-pies and mashed potato) were developed and validated based on end point temperatures using two microwave (more)

Valenzuela, Carol J

2013-01-01T23:59:59.000Z

54

Study of federal microwave standards  

DOE Green Energy (OSTI)

Present and future federal regulatory processes which may impact the permissible levels of microwave radiation emitted by the SPS Microwave Power Transmission (MPTS) were studied. An historical development of US occupational and public microwave standards includes an overview of Western and East European philosophies of environmental protection and neurophysiology which have led to the current widely differing maximum permissible exposure limits to microwaves. The possible convergence of microwave standards is characterized by a lowering of Western exposure levels while Eastern countries consider standard relaxation. A trend toward stricter controls on activities perceived as harmful to public health is under way as is interest in improving the federal regulatory process. Particularly relevant to SPS is the initiation of long-term, low-level microwave exposure programs. Coupled with new developments in instrumentation and dosimetry, the results from chronic exposure program and population exposure studies could be expected within the next five to ten years. Also discussed is the increasing public concern that rf energy is yet another hazardous environmental agent.

David, L.

1980-08-01T23:59:59.000Z

55

Difference between Life and Death of Bacterium against Microwave ...  

Science Conference Proceedings (OSTI)

... Electric and Magnetic Fields, Ultrasound, Lasers, and Mechanical Work. ... of Bacterium against Microwave Power under Microwave Irradiated Cultivation.

56

Microwave Off-gas srnlTechBriefp1  

Microwave energy combines with infrared heating ... A modified retail microwave oven requires little space, is compatible with existing electrical ...

57

Ignition methods and apparatus using microwave energy  

SciTech Connect

An ignition apparatus for a combustor includes a microwave energy source that emits microwave energy into the combustor at a frequency within a resonant response of the combustor, the combustor functioning as a resonant cavity for the microwave energy so that a plasma is produced that ignites a combustible mixture therein. The plasma preferably is a non-contact plasma produced in free space within the resonant cavity spaced away from with the cavity wall structure and spaced from the microwave emitter.

DeFreitas, Dennis Michael (Oxford, NY); Migliori, Albert (Santa Fe, NM)

1997-01-01T23:59:59.000Z

58

Microwave Augmented Fabrication and Evaluation of CNT ...  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, 2011 TMS Annual Meeting & Exhibition. Symposium , Biological Materials Science. Presentation Title, Microwave Augmented...

59

Microwavable thermal energy storage material  

DOE Patents (OSTI)

A microwavable thermal energy storage material is provided which includes a mixture of a phase change material and silica, and a carbon black additive in the form of a conformable dry powder of phase change material/silica/carbon black, or solid pellets, films, fibers, moldings or strands of phase change material/high density polyethylene/ethylene-vinyl acetate/silica/carbon black which allows the phase change material to be rapidly heated in a microwave oven. The carbon black additive, which is preferably an electrically conductive carbon black, may be added in low concentrations of from 0.5 to 15% by weight, and may be used to tailor the heating times of the phase change material as desired. The microwavable thermal energy storage material can be used in food serving applications such as tableware items or pizza warmers, and in medical wraps and garments.

Salyer, Ival O. (Dayton, OH)

1998-09-08T23:59:59.000Z

60

Microwavable thermal energy storage material  

DOE Patents (OSTI)

A microwavable thermal energy storage material is provided which includes a mixture of a phase change material and silica, and a carbon black additive in the form of a conformable dry powder of phase change material/silica/carbon black, or solid pellets, films, fibers, moldings or strands of phase change material/high density polyethylene/ethylene vinyl acetate/silica/carbon black which allows the phase change material to be rapidly heated in a microwave oven. The carbon black additive, which is preferably an electrically conductive carbon black, may be added in low concentrations of from 0.5 to 15% by weight, and may be used to tailor the heating times of the phase change material as desired. The microwavable thermal energy storage material can be used in food serving applications such as tableware items or pizza warmers, and in medical wraps and garments. 3 figs.

Salyer, I.O.

1998-09-08T23:59:59.000Z

Note: This page contains sample records for the topic "dayton hilltop microwave" 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

Microwave treatment of vulcanized rubber  

DOE Patents (OSTI)

A process and resulting product is provided in which a vulcanized solid particulate, such as vulcanized crumb rubber, has select chemical bonds broken by microwave radiation. The direct application of microwaves in combination with uniform heating of the crumb rubber renders the treated crumb rubber more suitable for use in new rubber formulations. As a result, larger particle sizes and/or loading levels of the treated crumb rubber can be used in new rubber mixtures to produce recycled composite products with good properties.

Wicks, George G. (Aiken, SC); Schulz, Rebecca L. (Aiken, SC); Clark, David E. (Gainesville, FL); Folz, Diane C. (Gainesville, FL)

2002-07-16T23:59:59.000Z

62

RF & Microwave Systems Group The RF & Microwave Systems  

E-Print Network (OSTI)

for Technology Transfer. Tagging, Tracking, and Locating Systems TTL technologies are on the verge and development (R&D) geared toward supplying robust communications for extreme environments; global tagging, tracking, and locating (TTL) systems; and RF- and microwave- based measurement and processing systems

63

Scanning tip microwave near field microscope  

SciTech Connect

A microwave near field microscope has a novel microwave probe structure wherein the probing field of evanescent radiation is emitted from a sharpened metal tip instead of an aperture or gap. This sharpened tip, which is electrically and mechanically connected to a central electrode, extends through and beyond an aperture in an endwall of a microwave resonating device such as a microwave cavity resonator or a microwave stripline resonator. Since the field intensity at the tip increases as the tip sharpens, the total energy which is radiated from the tip and absorbed by the sample increases as the tip sharpens. The result is improved spatial resolution without sacrificing sensitivity.

Xiang, Xiao-Dong (Alameda, CA); Schultz, Peter G. (Oakland, CA); Wei, Tao (Albany, CA)

1998-01-01T23:59:59.000Z

64

Microwave scattering from laser spark in air  

Science Conference Proceedings (OSTI)

In this paper, microwave Mie scattering from a laser-induced plasma in atmospheric air is computed. It shows that the scattered microwave transitions from coherent Rayleigh scattering to Mie scattering based on the relative transparency of the laser-induced plasma at the microwave frequency. The microwave penetration in the plasma alters from total transparency to partial shielding due to the sharp increase of the electron number density within the avalanche ionization phase. The transition from Rayleigh scattering to Mie scattering is verified by both the temporal evolution of the scattered microwave and the homogeneity of polar scattering plots.

Sawyer, Jordan; Zhang Zhili [Mechanical, Aerospace and Biomedical Engineering, University of Tennessee, Knoxville, Tennessee 37996 (United States); Shneider, Mikhail N. [Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544 (United States)

2012-09-15T23:59:59.000Z

65

Microwave sintering of boron carbide  

DOE Patents (OSTI)

A method for forming boron carbide into a particular shape and densifying the green boron carbide shape. Boron carbide in powder form is pressed into a green shape and then sintered, using a microwave oven, to obtain a dense boron carbide body. Densities of greater than 95% of theoretical density have been obtained. 1 tab.

Blake, R.D.; Katz, J.D.; Petrovic, J.J.; Sheinberg, H.

1988-06-10T23:59:59.000Z

66

Controlled zone microwave plasma system  

DOE Patents (OSTI)

An apparatus and method for initiating a process gas plasma. A conductive plate having a plurality of conductive fingers is positioned in a microwave applicator. An arc forms between the conductive fingers to initiate the formation of a plasma. A transport mechanism may convey process materials through the plasma. A spray port may be provided to expel processed materials.

Ripley, Edward B. (Knoxville, TN); Seals, Roland D. (Oak Ridge, TN); Morrell, Jonathan S. (Knoxville, TN)

2009-10-20T23:59:59.000Z

67

Intercalibrated Passive Microwave Rain Products from the Unified Microwave Ocean Retrieval Algorithm (UMORA)  

Science Conference Proceedings (OSTI)

The Unified Microwave Ocean Retrieval Algorithm (UMORA) simultaneously retrieves sea surface temperature, surface wind speed, columnar water vapor, columnar cloud water, and surface rain rate from a variety of passive microwave radiometers ...

K. A. Hilburn; F. J. Wentz

2008-03-01T23:59:59.000Z

68

From Microwave Anisotropies to Cosmology  

E-Print Network (OSTI)

Fluctuations in the temperature of the cosmic microwave background have now been detected over a wide range of angular scales, and a consistent picture seems to be emerging. This article describes some of the implications for cosmology. Analysis of all the published detections suggests the existence of a peak on degree scales of height 2.4 to 10 (90%CL) relative to the amplitude of the power spectrum at large angular scales. This result confirms an early prediction, implies that the universe did in fact recombine, and limits theories of structure formation. Illustrative examples are provided of how the comparison of microwave background and large-scale structure data will be a potentially powerful means of answering fundamental questions about the universe.

Douglas Scott; Joe Silk; Martin White

1995-05-04T23:59:59.000Z

69

Hybrid Microwave Cavity Heat Engine  

E-Print Network (OSTI)

We propose and analyze the use of hybrid microwave cavities as quantum heat engines. A possible realization consists of two macroscopically separated quantum dot conductors coupled capacitively to the fundamental mode of a microwave cavity. We demonstrate that an electrical current can be induced in one conductor through cavity-mediated processes by heating up the other conductor. The heat engine can reach Carnot efficiency with optimal conversion of heat to work. When the system delivers the maximum power, the efficiency can be a large fraction of the Carnot efficiency. The heat engine functions even with moderate electronic relaxation and dephasing in the quantum dots. We provide detailed estimates for the electrical current and output power using realistic parameters.

Christian Bergenfeldt; Peter Samuelsson; Bjrn Sothmann; Christian Flindt; Markus Bttiker

2013-07-18T23:59:59.000Z

70

Microwave-enhanced chemical processes  

DOE Patents (OSTI)

A process for disposal of toxic wastes including chlorinated hydrocarbons, comprising, establishing a bed of non-metallic particulates having a high dielectric loss factor. Effecting intimate contact of the particulates and the toxic wastes at a temperature in excess of about 400.degree. C. in the presence of microwave radiation for a time sufficient to break the hydrocarbon chlorine bonds and provide detoxification values in excess of 80 and further detoxifying the bed followed by additional disposal of toxic wastes.

Varma, Ravi (Hinsdale, IL)

1990-01-01T23:59:59.000Z

71

Microwave assisted hard rock cutting  

DOE Patents (OSTI)

An apparatus for the sequential fracturing and cutting of subsurface volume of hard rock (102) in the strata (101) of a mining environment (100) by subjecting the volume of rock to a beam (25) of microwave energy to fracture the subsurface volume of rock by differential expansion; and , then bringing the cutting edge (52) of a piece of conventional mining machinery (50) into contact with the fractured rock (102).

Lindroth, David P. (Apple Valley, MN); Morrell, Roger J. (Bloomington, MN); Blair, James R. (Inver Grove Heights, MN)

1991-01-01T23:59:59.000Z

72

Microwave Tokamak Experiment: Overview and status  

SciTech Connect

The Microwave Tokamak Experiment, now under construction at the Laboratory, will use microwave heating from a free-electron laser. The intense microwave pulses will be injected into the tokamak to realize several goals, including a demonstration of the effects of localized heat deposition within magnetically confined plasma, a better understanding of energy confinement in tokamaks, and use of the new free-electron laser technology for plasma heating. 3 figs., 3 tabs.

1990-05-01T23:59:59.000Z

73

Dayton, Oregon: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

206728°, -123.0762134° 206728°, -123.0762134° 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":45.2206728,"lon":-123.0762134,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

74

Dayton, Minnesota: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

243854°, -93.5149576° 243854°, -93.5149576° 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":45.243854,"lon":-93.5149576,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

75

Dayton, Ohio: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

589478°, -84.1916069° 589478°, -84.1916069° 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":39.7589478,"lon":-84.1916069,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

76

Dayton, Texas: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

66051°, -94.8852026° 66051°, -94.8852026° 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":30.0466051,"lon":-94.8852026,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

77

Process for microwave sintering boron carbide  

DOE Patents (OSTI)

A method of microwave sintering boron carbide comprises leaching boron carbide powder with an aqueous solution of nitric acid to form a leached boron carbide powder. The leached boron carbide powder is coated with a glassy carbon precursor to form a coated boron carbide powder. The coated boron carbide powder is consolidated in an enclosure of boron nitride particles coated with a layer of glassy carbon within a container for microwave heating to form an enclosed coated boron carbide powder. The enclosed coated boron carbide powder is sintered within the container for microwave heating with microwave energy.

Holcombe, C.E.; Morrow, M.S.

1993-10-12T23:59:59.000Z

78

Microwave Application to Environmental Problems : Model ...  

Science Conference Proceedings (OSTI)

Difference between Life and Death of Bacterium against Microwave Power under ... Sintering and Plastic Deformation of Ceramics under Pulsed Electric Current.

79

Application of Microwave Heating for Reduction of ...  

Science Conference Proceedings (OSTI)

Difference between Life and Death of Bacterium against Microwave Power under ... Sintering and Plastic Deformation of Ceramics under Pulsed Electric Current.

80

Rapid Baking of Friction Material with Microwaves  

Science Conference Proceedings (OSTI)

The curing is followed by baking in electrical oven with multistage heating for ... Difference between Life and Death of Bacterium against Microwave Power under

Note: This page contains sample records for the topic "dayton hilltop microwave" 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

Investigation on Microstructural Characterization of Microwave ...  

Science Conference Proceedings (OSTI)

... substrate have been developed through home microwave oven at frequency ... On the Interrelationship of Applied Fields and Heating Rates during Electric...

82

Innovative Microwave Technology - Energy Innovation Portal  

Hadron Technologies, Inc. has signed an exclusive license for a Hybrid Microwave and Off-Gas Treatment System ... within the commercial and ... Buildi ...

83

Microwave Spectra of Molecules of Astrophysical Interest. ...  

Science Conference Proceedings (OSTI)

Page 1. Microwave Spectra of Molecules of Astrophysical Interest. XXVI. Acetic Acid CH3COOH ... 100 3. Acetic Acid Spectral Tables. . . . . ...

2012-04-17T23:59:59.000Z

84

NERSC Continues Tradition of Cosmic Microwave Background Data...  

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

Tradition of Cosmic Microwave Background Data Analysis with the Planck Cluster NERSC Continues Tradition of Cosmic Microwave Background Data Analysis with the Planck...

85

New Energy Efficiency Standards for Microwave Ovens to Save Consumers...  

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

New Energy Efficiency Standards for Microwave Ovens to Save Consumers on Energy Bills New Energy Efficiency Standards for Microwave Ovens to Save Consumers on Energy Bills May 31,...

86

EETD Assists in Analysis of Microwave Oven Energy Efficiency...  

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

EETD Assists in Analysis of Microwave Oven Energy Efficiency Standard June 2013 The Department of Energy recently announced new energy efficiency standards for microwave ovens....

87

Near-Instantaneous Microwave Heating and Cooling for Microfluidic ...  

home \\ technologies \\ microwave heating of microfluidics. Technologies: Ready-to-Sign Licenses: Software: Patents: Near-Instantaneous Microwave Heating and Cooling ...

88

Method of sintering materials with microwave radiation  

DOE Patents (OSTI)

A method of sintering ceramic materials following: A compacted article comprising inorganic particles coated with carbon is provided, the carbon providing improved microwave coupling. The compacted article is then heated by microwave radiation to a temperature and for a period of time sufficient to sinter the compacted article.

Kimrey, Jr., Harold D. (Knoxville, TN); Holcombe, Jr., Cressie E. (Farragut, TN); Dykes, Norman L. (Oak Ridge, TN)

1994-01-01T23:59:59.000Z

89

Multi-wall carbon nanotubes in microwaves  

Science Conference Proceedings (OSTI)

The electromagnetic (EM) response of multi-wall carbon nanotubes (MWCNT) prepared by chemical vapor decomposition (CVD) method has been analyzed in the microwave frequency range. EM absorption properties of MWCNT depend on their medium diameter related ... Keywords: carbon nanotube, coating, electromagnetic absorption, microwave

S. Moseenkov; V. Kuznetsov; A. Usoltseva; I. Mazov; A. Ischenko; T. Buryakov; O. Anikeeva; A. Romanenko; P. Kuzhir; D. Bychenok; K. Batrakov; S. Maksimenko

2009-02-01T23:59:59.000Z

90

Tandem microwave waste remediation and decontamination system  

DOE Patents (OSTI)

The invention discloses a tandem microwave system consisting of a primary chamber in which microwave energy is used for the controlled combustion of materials. A second chamber is used to further treat the off-gases from the primary chamber by passage through a susceptor matrix subjected to additional microwave energy. The direct microwave radiation and elevated temperatures provide for significant reductions in the qualitative and quantitative emissions of the treated off gases. The tandem microwave system can be utilized for disinfecting wastes, sterilizing materials, and/or modifying the form of wastes to solidify organic or inorganic materials. The simple design allows on-site treatment of waste by small volume waste generators.

Wicks, George G. (North Aiken, SC); Clark, David E. (Gainesville, FL); Schulz, Rebecca L. (Gainesville, FL)

1999-01-01T23:59:59.000Z

91

Microwave generated plasma light source apparatus  

SciTech Connect

A microwave generated plasma light source including a microwave generator, a microwave cavity having a light reflecting member forming at least a portion of the cavity, and a member transparent to light and opaque to microwaves disposed across an opening of the cavity opposite the feeding opening through which the microwave generator is coupled. An electrodeless discharge bulb is disposed at a position in the cavity such that the cavity operates as a resonant cavity at least when the bulb is emitting light. In the bulb is encapsulated at least one discharge light emissive substance. The bulb has a shape and is sufficiently small that the bulb acts substantially as a point light source.

Yoshizawa, K.; Ito, H.; Kodama, H.; Komura, H.; Minowa, Y.

1985-02-05T23:59:59.000Z

92

Microwave Emission at High Galactic Latitudes  

E-Print Network (OSTI)

We use the COBE Differential Microwave Radiometers (DMR) 4-year sky maps to model Galactic microwave emission at high latitudes (|b| > 20 deg). Cross-correlation of the DMR maps with Galactic template maps detects fluctuations in the high-latitude microwave sky brightness with the angular variation of the DIRBE far-infrared dust maps and a frequency dependence consistent with a superposition of dust and free-free emission. We find no significant correlations between the DMR maps and various synchrotron templates. On the largest angular scales (e.g., quadrupole), Galactic emission is comparable in amplitude to the anisotropy in the cosmic microwave background (CMB). The CMB quadrupole amplitude, after correction for Galactic emission, has amplitude $Q_{rms}$ = 10.7 uK with random uncertainty 3.6 uK and systematic uncertainty 7.1 uK from uncertainty in our knowledge of Galactic microwave emission.

A. Kogut; G. Hinshaw; A. J. Banday; C. L. Bennett; K. Gorski; G. F. Smoot; E. L. Wright

1996-01-12T23:59:59.000Z

93

A Microwave Thruster for Spacecraft Propulsion  

DOE Green Energy (OSTI)

This presentation describes how a microwave thruster can be used for spacecraft propulsion. A microwave thruster is part of a larger class of electric propulsion devices that have higher specific impulse and lower thrust than conventional chemical rocket engines. Examples of electric propulsion devices are given in this presentation and it is shown how these devices have been used to accomplish two recent space missions. The microwave thruster is then described and it is explained how the thrust and specific impulse of the thruster can be measured. Calculations of the gas temperature and plasma properties in the microwave thruster are discussed. In addition a potential mission for the microwave thruster involving the orbit raising of a space station is explored.

Chiravalle, Vincent P [Los Alamos National Laboratory

2012-07-23T23:59:59.000Z

94

Microwave-triggered laser switch  

DOE Patents (OSTI)

A high-repetition rate switch is described for delivering short duration, high-powered electrical pulses from a pulsed-charged dc power supply. The present invention utilizes a microwave-generating device such as a magnetron that is capable of producing high-power pulses at high-pulse repetition rates and fast-pulse risetimes for long periods with high reliability. The rail-gap electrodes provide a large surface area that reduces induction effects and minimizes electrode erosion. Additionally, breakdown is initiated in a continuous geometric fashion that also increases operating lifetime of the device.

Piltch, M.S.

1982-05-19T23:59:59.000Z

95

Microwave-enhanced chemical processes  

DOE Patents (OSTI)

A process is disclosed for the disposal of toxic wastes including chlorinated hydrocarbons, comprising, establishing a bed of non-metallic particulates having a high dielectric loss factor. Intimate contact of the particulates and the toxic wastes at a temperature in excess of about 400 C in the presence of microwave radiation for a time sufficient breaks the hydrocarbon chlorine bonds. Detoxification values in excess of 80 are provided and further detoxification of the bed is followed by additional disposal of toxic wastes. 1 figure.

Varma, R.

1990-06-19T23:59:59.000Z

96

Microwave-enhanced chemical processes  

DOE Patents (OSTI)

This invention pertains to a process for disposal of toxic wastes including chlorinated hydrocarbons, comprising, establishing a bed of non-metallic particulates having a high dielectric loss factor. Effecting intimate contact of the particulates and the toxic wastes at a temperature in excess of about 400{degree}C. In the presence of microwave radiation for a time sufficient to break the hydrocarbon chlorine bonds and provide detoxification values in excess of 80 and further detoxifying the bed followed by additional disposal of toxic wastes.

Varma, R.

1988-09-15T23:59:59.000Z

97

Microwave-triggered laser switch  

DOE Patents (OSTI)

A high-repetition rate switch for delivering short duration, high-power electrical pulses from a pulsed-charged dc power supply. The present invention utilizes a microwave-generating device such as a magnetron that is capable of producing high-power pulses at high-pulse repetition rates and fast-pulse risetimes for long periods with high reliability. The rail-gap electrodes provide a large surface area that reduces induction effects and minimizes electrode erosion. Additionally, breakdown is initiated in a continuous geometric fashion that also increases operating lifetime of the device.

Piltch, Martin S. (Los Alamos, NM)

1984-01-01T23:59:59.000Z

98

Microwave combustion and sintering without isostatic pressure  

SciTech Connect

In recent years interest has grown rapidly in the application of microwave energy to the processing of ceramics, composites, polymers, and other materials. Advances in the understanding of microwave/materials interactions will facilitate the production of new ceramic materials with superior mechanical properties. One application of particular interest is the use of microwave energy for the mobilization of uranium for subsequent redeposition. Phase III (FY98) will focus on the microwave assisted chemical vapor infiltration tests for mobilization and redeposition of radioactive species in the mixed sludge waste. Uranium hexachloride and uranium (IV) borohydride are volatile compounds for which the chemical vapor infiltration procedure might be developed for the separation of uranium. Microwave heating characterized by an inverse temperature profile within a preformed ceramic matrix will be utilized for CVI using a carrier gas. Matrix deposition is expected to commence from the inside of the sample where the highest temperature is present. The preform matrix materials, which include aluminosilicate based ceramics and silicon carbide based ceramics, are all amenable to extreme volume reduction, densification, and vitrification. Important parameters of microwave sintering such as frequency, power requirement, soaking temperature, and holding time will be investigated to optimize process conditions for the volatilization of uranyl species using a reactive carrier gas in a microwave chamber.

Ebadian, M.A.

1998-01-01T23:59:59.000Z

99

Special Sensor Microwave/Imager (SSM/I) and Special Sensor Microwave Imager  

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

Special Sensor Microwave/Imager (SSM/I) and Special Sensor Microwave Imager Special Sensor Microwave/Imager (SSM/I) and Special Sensor Microwave Imager Sounder (SSMIS) Global Gridded Products Agriculture Community Menu DATA APPS EVENTS DEVELOPER STATISTICS COLLABORATE ABOUT Agriculture You are here Data.gov » Communities » Agriculture » Data Special Sensor Microwave/Imager (SSM/I) and Special Sensor Microwave Imager Sounder (SSMIS) Global Gridded Products Dataset Summary Description The SSM/I products are useful for evaluating the mean climate state, it's interannual and seasonal variations, and the detection of anomalies associated with ENSO and regional climatic variations. The Hydrology Team has assembled a time series of the entire SSM/I archive, now entering it's 16th year, which includes data from July 1987 to the present. Monthly average products are produced for precipitation, cloud liquid water, total precipitable water, snow cover, sea-ice cover, and oceanic surface wind speed.

100

Planar slot coupled microwave hybrid  

DOE Patents (OSTI)

A symmetrical 180.degree. microwave hybrid is constructed by opening a slot line in a ground plane below a conducting strip disposed on a dielectric substrate, creating a slot coupled conductor. Difference signals propagating on the slot coupled conductor are isolated on the slot line leaving sum signals to propagate on the microstrip. The difference signal is coupled from the slot line onto a second microstrip line for transmission to a desired location. The microstrip branches in a symmetrical fashion to provide the input/output ports of the 180.degree. hybrid. The symmetry of the device provides for balance and isolation between sum and difference signals, and provides an advantageous balance between the power handling capabilities and the bandwidth of the device.

Petter, Jeffrey K. (Williston, VT)

1991-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "dayton hilltop microwave" from the National Library of EnergyBeta (NLEBeta).
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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

Modulated microwave microscopy and probes used therewith  

Science Conference Proceedings (OSTI)

A microwave microscope including a probe tip electrode vertically positionable over a sample and projecting downwardly from the end of a cantilever. A transmission line connecting the tip electrode to the electronic control system extends along the cantilever and is separated from a ground plane at the bottom of the cantilever by a dielectric layer. The probe tip may be vertically tapped near or at the sample surface at a low frequency and the microwave signal reflected from the tip/sample interaction is demodulated at the low frequency. Alternatively, a low-frequency electrical signal is also a non-linear electrical element associated with the probe tip to non-linearly interact with the applied microwave signal and the reflected non-linear microwave signal is detected at the low frequency. The non-linear element may be semiconductor junction formed near the apex of the probe tip or be an FET formed at the base of a semiconducting tip.

Lai, Keji; Kelly, Michael; Shen, Zhi-Xun

2012-09-11T23:59:59.000Z

102

Beamfilling Errors in Passive Microwave Rainfall Retrievals  

Science Conference Proceedings (OSTI)

There are currently large numbers of rainfall retrieval algorithms based upon passive microwave radiances. Most of these algorithms are physically based in that they use explicit physical assumptions to derive relationships between brightness ...

Christian Kummerow

1998-04-01T23:59:59.000Z

103

Satellite Microwave Surface Observations in Tropical Cyclones  

Science Conference Proceedings (OSTI)

Sea surface estimates of local winds, waves, and rain-rate conditions are crucial to complement infrared/visible satellite images in estimating the strength of tropical cyclones (TCs). Satellite measurements at microwave frequencies are thus key ...

Yves Quilfen; Bertrand Chapron; Jean Tournadre

2010-02-01T23:59:59.000Z

104

Chemical vapor infiltration using microwave energy  

DOE Patents (OSTI)

This invention is comprised of a method for producing reinforced ceramic composite articles by means of chemical vapor infiltration and deposition in which an inverted temperature gradient is utilized. Microwave energy is the source of heat for the process.

Devlin, D.J.; Currier, R.P.; Laia, J.R.; Barbero, R.S.

1992-12-31T23:59:59.000Z

105

Detection of contraband using microwave radiation  

DOE Patents (OSTI)

The present invention relates to a method and system for using microwave radiation to detect contraband hidden inside of a non-metallic container, such as a pneumatic vehicle tire. The method relies on the attenuation, retardation, time delay, or phase shift of microwave radiation as it passes through the container plus the contraband. The method is non-invasive, non-destructive, low power, and does not require physical contact with the container.

Toth, Richard P. (Albuquerque, NM); Loubriel, Guillermo M. (Albuquerque, NM); Bacon, Larry D. (Albuquerque, NM); Watson, Robert D. (Tijeras, NM)

2002-01-01T23:59:59.000Z

106

Mohammad F. Alam, Mohammed Atiquzzaman, and Bradley B. Duncan University of Dayton, Dayton, Ohio  

E-Print Network (OSTI)

systems, where a fiber-optic network acts like a local area network (LAN) for digital data communications, have become a topic of extensive research and development. Although a fiber-optic system can be designed to transport radio-frequency (RF) signals, the digital fiber-optic systems under development today

Atiquzzaman, Mohammed

107

Microwave emissions from police radar  

E-Print Network (OSTI)

The purpose of this study was to evaluate police officers exposures to microwaves emitted by traffic radar units at the ocular and testicular level. Additionally, comparisons were made of the radar manufacturers published maximum power density specifications and actual measured power densities taken at the antenna face of those units. Four different speed enforcement agencies and one transportation research institute provided fifty four different radar units for evaluation. Of those units, nine dash mounted. five rear mounted, and three hand held models were included. During this study, only four of the 986 measurements taken exceeded the American National Standards Institute(ANSI) limit of 5 MW/CM2 , and none exceeded the American Conference of Governmental Industrial Hygienists(ACGIH), Institute of Electrical and Electronic Engineers(IEEE), or Occupational Safety and Health Administration(OSHA) standard of 10 MW/CM2 . None of the 812 measurements taken at the officers seated ocular and testicular positions exceeded .04 MW/CM2. In fact, the highest reading observed in the drivers' position was .034 MW/CM2 taken at the 5th percentile testicular level, less than 1% of the lowest current safety standard. Because of the confusion that exists in the medical and scientific communities concerning non-ionizing radiation, the extent of health risks associated with long term exposure to police radar is not yet known. Until science has indisputably proven that long term, low power exposure is not harmful, it is recommended that police departments take steps to limit officer exposure. There are several ways that police departments can limit exposure cheaply and with minimal effort. The purchasing department should first consider radar units with the lowest published maximum power densities. New hand held radar units should not be purchased because they leave open the opportunity for operators to place their bodies in the radar beam path. Purchasing units whose antennae mount outside the patrol vehicle will also lower exposure to microwaves. Finally, training that stresses the importance of using the radar units' stand-by mode when not actually monitoring traffic will further limit exposure.

Fink, John Michael

1994-01-01T23:59:59.000Z

108

An Improved Microwave Radiative Transfer Model for Tropical Oceanic Precipitation  

Science Conference Proceedings (OSTI)

In preparation for the launch of TRMM, new algorithms must be created that take advantage of the combined data from radar and microwave radiometers that will be on board the satellite. A microwave radiative transfer algorithm with a one-...

Jeffrey R. Tesmer; Thomas T. Wilheit

1998-05-01T23:59:59.000Z

109

A Statistical Modeling Approach to Passive Microwave Rainfall Retrieval  

Science Conference Proceedings (OSTI)

A new empirical algorithm for retrieving rainfall rates from passive microwave (particularly Special Sensor Microwave/Imager) data is presented. Errors caused by spatial and temporal variation of surface temperature, emissivity, and atmospheric ...

Douglas M. Smith; Dominic R. Kniveton; Eric C. Barrett

1998-02-01T23:59:59.000Z

110

A Method for Combining Passive Microwave and Infrared Rainfall Observations  

Science Conference Proceedings (OSTI)

Passive microwave observations of rainfall offer the ability to obtain very accurate instantaneous estimates of rainfall. Because passive microwave instruments are confined to polar-orbiting satellites, however, such estimates must interpolate ...

Christian Kummerow; Louis Giglio

1995-02-01T23:59:59.000Z

111

Ice Water Path Estimation and Characterization Using Passive Microwave Radiometry  

Science Conference Proceedings (OSTI)

Microwave emission emerging from a precipitating cloud top and lying in a radiometer's field of view represents the culmination of a complex interaction between emitted microwave radiation and its ongoing extinction through overlapping regions of ...

J. Vivekanandan; J. Turk; V. N. Bringi

1991-10-01T23:59:59.000Z

112

A Passive Microwave Algorithm for Tropical Oceanic Rainfall  

Science Conference Proceedings (OSTI)

This study discusses a rainfall algorithm utilizing six channels of microwave radiance data from the Nimbus-7 Scanning Multifrequency Microwave Radiometer. The algorithm is intended for short-term climate studies over the ocean at low latitudes. ...

Barry B. Hinton; William S. Olson; David W. Martin; Brian Auvine

1992-12-01T23:59:59.000Z

113

Some Comments on Passive Microwave Measurement of Rain  

Science Conference Proceedings (OSTI)

It is argued that because microwave radiation interacts much more strongly with hydrometeors than with cloud particles, microwave measurements from space offer a significant chance of making global precipitation estimates. Over oceans, passive ...

Thomas T. Wilheit

1986-10-01T23:59:59.000Z

114

Passive-Microwave-Enhanced Statistical Hurricane Intensity Prediction Scheme  

Science Conference Proceedings (OSTI)

The formulation and testing of an enhanced Statistical Hurricane Intensity Prediction Scheme (SHIPS) using new predictors derived from passive microwave imagery is presented. Passive microwave imagery is acquired for tropical cyclones in the ...

Thomas A. Jones; Daniel Cecil; Mark DeMaria

2006-08-01T23:59:59.000Z

115

An Observationally Generated A Priori Database for Microwave Rainfall Retrievals  

Science Conference Proceedings (OSTI)

The combination of active and passive microwave sensors on board the Tropical Rainfall Measuring Mission (TRMM) satellite have been used to construct observationally constrained databases of precipitation profiles for use in passive microwave ...

Christian D. Kummerow; Sarah Ringerud; Jody Crook; David Randel; Wesley Berg

2011-02-01T23:59:59.000Z

116

Microwave Heating, Energy and Environment - Programmaster.org  

Science Conference Proceedings (OSTI)

Mar 7, 2013 ... Microwave Reflection Loss of Ferric Oxide: Zhiwei Peng1; ... heat rapidly by microwave (MW) irradiation generating plasma during oxidation of surfaces. .... Co-Gasification Behavior of Metallurgical Coke with High and Low...

117

Parametric Rainfall Retrieval Algorithms for Passive Microwave Radiometers  

Science Conference Proceedings (OSTI)

A methodology is described to construct fully parametric rainfall retrieval algorithms for a variety of passive microwave sensors that exist today and are planned for the future. The Tropical Rainfall Measuring Mission (TRMM) Microwave Imager (...

Dong-Bin Shin; Christian Kummerow

2003-10-01T23:59:59.000Z

118

Microwave quantum logic spectroscopy and control of molecular ions  

E-Print Network (OSTI)

A general method for rotational microwave spectroscopy and control of polar molecular ions via direct microwave addressing is considered. Our method makes use of spatially varying ac Stark shifts, induced by far off-resonant, ...

Drewsen, M

119

Satellite Rainfall Estimation Using Combined Passive Microwave and Infrared Algorithms  

Science Conference Proceedings (OSTI)

The development of a combined infrared and passive microwave satellite rainfall estimation technique is outlined. Infrared data from geostationary satellites are combined with polar-orbiting passive microwave estimates to provide 30-min rainfall ...

Chris Kidd; Dominic R. Kniveton; Martin C. Todd; Tim J. Bellerby

2003-12-01T23:59:59.000Z

120

Global estimation of precipitation using opaque microwave bands  

E-Print Network (OSTI)

This thesis describes the use of opaque microwave bands for global estimation of precipitation rate. An algorithm was developed for estimating instantaneous precipitation rate for the Advanced Microwave Sounding Unit (AMSU) ...

Chen, Frederick Wey-Min, 1975-

2004-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "dayton hilltop microwave" 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

Processing and Performance of Materials using Microwaves, Electric ...  

Science Conference Proceedings (OSTI)

Symposium, Rustum Roy Memorial Symposium: Processing and Performance of Materials using Microwaves, Electric and Magnetic Fields, Ultrasound, Lasers,...

122

Microwave Effect on Densification Kinetics during the Sintering of ...  

Science Conference Proceedings (OSTI)

Symposium, Rustum Roy Memorial Symposium: Processing and Performance of Materials using Microwaves, Electric and Magnetic Fields, Ultrasound, Lasers,...

123

A Novel Microwave Assisted Phosphate Coating Process for ...  

Science Conference Proceedings (OSTI)

Microstructural Characteristics of Nano Calcium Phosphates Doped with Fluoride and Titanium Ions Microwave Assisted Synthesis of Nano Hydroxyapatite...

124

Microwave Brazing of Gas Turbine Components - Programmaster.org  

Science Conference Proceedings (OSTI)

Presentation Title, Microwave Brazing of Gas Turbine Components ... A Breakthrough Application of Electricity at High Temperature for Steel Production: Molten...

125

An Explanation of Microwave Effects by Expansion of Transit State ...  

Science Conference Proceedings (OSTI)

... State Theories with Disturbed Velocity Distributions by Microwave. Author(s), Motoyasu Sato, Jun Fukushima, kyouichiro Kashimura, Sadatugu Takayama.

126

Mechanism of Microwave Heating of Dielectric and Magnetic  

Science Conference Proceedings (OSTI)

New Saccharification Process of Cellulosic Biomass by Microwave Irradiation Novel Lamination Method for Large Armor Panels Raman Spectroscopy for...

127

Reduction Behavior of TiO 2 during Microwave Heating  

Science Conference Proceedings (OSTI)

New Saccharification Process of Cellulosic Biomass by Microwave Irradiation Novel Lamination Method for Large Armor Panels Raman Spectroscopy for...

128

Microwave Heating Of Copper Powders in a Single Mode Cavity  

Science Conference Proceedings (OSTI)

New Saccharification Process of Cellulosic Biomass by Microwave Irradiation Novel Lamination Method for Large Armor Panels Raman Spectroscopy for...

129

The Effect of Temperature on Dielectric Permitivity and Microwave ...  

Science Conference Proceedings (OSTI)

Dielectric property and microwave absorption property of anthracite were measured ... Effect of Continuous Cooling Rate on Microstructural Transformation of...

130

Microwave off-gas treatment apparatus and process  

DOE Patents (OSTI)

The invention discloses a microwave off-gas system in which microwave energy is used to treat gaseous waste. A treatment chamber is used to remediate off-gases from an emission source by passing the off-gases through a susceptor matrix, the matrix being exposed to microwave radiation. The microwave radiation and elevated temperatures within the combustion chamber provide for significant reductions in the qualitative and quantitative emissions of the gas waste stream.

Schulz, Rebecca L. (Aiken, SC); Clark, David E. (Gainesville, FL); Wicks, George G. (North Aiken, SC)

2003-01-01T23:59:59.000Z

131

Apparatus for microwave heat treatment of manufactured components  

DOE Patents (OSTI)

An apparatus for heat treating manufactured components using microwave energy and microwave susceptor material. Heat treating medium such as eutectic salts may be employed. A fluidized bed introduces process gases which may include carburizing or nitriding gases. The process may be operated in a batch mode or continuous process mode. A microwave heating probe may be used to restart a frozen eutectic salt bath.

Babcock & Wilcox Technical Services Y-12, LLC (Oak Ridge, TN)

2008-04-15T23:59:59.000Z

132

Methods for microwave heat treatment of manufactured components  

DOE Patents (OSTI)

An apparatus for heat treating manufactured components using microwave energy and microwave susceptor material. Heat treating medium such as eutectic salts may be employed. A fluidized bed introduces process gases which may include carburizing or nitriding gases. The process may be operated in a batch mode or continuous process mode. A microwave heating probe may be used to restart a frozen eutectic salt bath.

Ripley, Edward B. (Knoxville, TN)

2010-08-03T23:59:59.000Z

133

Microwave accelerator E-beam pumped laser  

DOE Patents (OSTI)

A device and method for pumping gaseous lasers by means of a microwave accelerator. The microwave accelerator produces a relativistic electron beam which is applied along the longitudinal axis of the laser through an electron beam window. The incident points of the electron beam on the electron beam window are varied by deflection coils to enhance the cooling characteristics of the foil. A thyratron is used to reliably modulate the microwave accelerator to produce electron beam pulses which excite the laser medium to produce laser pulse repetition frequencies not previously obtainable. An aerodynamic window is also disclosed which eliminates foil heating problems, as well as a magnetic bottle for reducing laser cavity length and pressures while maintaining efficient energy deposition.

Brau, Charles A. (Los Alamos, NM); Stein, William E. (Los Alamos, NM); Rockwood, Stephen D. (Los Alamos, NM)

1980-01-01T23:59:59.000Z

134

Open Ended Microwave Oven for Packaging  

E-Print Network (OSTI)

A novel open waveguide cavity resonator is presented for the combined variable frequency microwave curing of bumps, underfills and encapsulants, as well as the alignment of devices for fast flip-chip assembly, direct chip attach (DCA) or wafer-scale level packaging (WSLP). This technology achieves radio frequency (RF) curing of adhesives used in microelectronics, optoelectronics and medical devices with potential simultaneous micron-scale alignment accuracy and bonding of devices. In principle, the open oven cavity can be fitted directly onto a flip-chip or wafer scale bonder and, as such, will allow for the bonding of devices through localised heating thus reducing the risk to thermally sensitive devices. Variable frequency microwave (VFM) heating and curing of an idealised polymer load is numerically simulated using a multi-physics approach. Electro-magnetic fields within a novel open ended microwave oven developed for use in micro-electronics manufacturing applications are solved using a de icated Yee sche...

Sinclair, K I; Desmulliez, M Y P; Goussetis, G; Bailey, C; Parrott, K; Sangster, A J

2008-01-01T23:59:59.000Z

135

Ground-Based Microwave Radiometer Measurements  

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

Ground-Based Microwave Radiometer Measurements Ground-Based Microwave Radiometer Measurements and Radiosonde Comparisons During the WVIOP2000 Field Experiment D. Cimini University of L'Aquila L'Aquil, Italy E. R. Westwater Cooperative Institute for Research in the Environmental Sciences University of Colorado National Oceanic and Atmospheric Administration Environmental Technology Laboratory Boulder, Colorado Y. Han Science System Applications National Aeronautics Space Administration Goddard Space Flight Center Greenbelt, Maryland S. Keihm Jet Propulsion Laboratory California Institute of Technology Pasadena, California Introduction During September to October 2000, a water vapor intensive operational period (WVIOP) was conducted at the Atmospheric Radiation Measurement (ARM) Program's Southern Great Plains (SGP) Cloud and

136

Microwave remote sensing of ionized air.  

SciTech Connect

We present observations of microwave scattering from ambient room air ionized with a negative ion generator. The frequency dependence of the radar cross section of ionized air was measured from 26.5 to 40 GHz (Ka-band) in a bistatic mode with an Agilent PNA-X series (model N5245A) vector network analyzer. A detailed calibration scheme is provided to minimize the effect of the stray background field and system frequency response on the target reflection. The feasibility of detecting the microwave reflection from ionized air portends many potential applications such as remote sensing of atmospheric ionization and remote detection of radioactive ionization of air.

Liao, S.; Gopalsami, N.; Heifetz, A.; Elmer, T.; Fiflis, P.; Koehl, E. R.; Chien, H. T.; Raptis, A. C. (Nuclear Engineering Division)

2011-07-01T23:59:59.000Z

137

Numerical and experimental modelling of microwave applicators  

E-Print Network (OSTI)

area of use is for the processing of food, the tempering of fruit, meat, fish and dairy produce, for the heating and cooking of meals and for sterilisation and pasteurisation. The domestic microwave oven is now a common household appliance throughout... the world and many food producers are turning to microwave heating as a means of achieving the high quality products demanded by todays consumers. The sizes of these systems can range from a few hundred watts for a domestic oven to over 250 kilowatts for a...

Dibben, David

1995-10-24T23:59:59.000Z

138

Synthesis of ultrafine powders by microwave heating  

DOE Patents (OSTI)

A method of synthesizing ultrafine powders using microwaves is described. A water soluble material is dissolved in water and the resulting aqueous solution is exposed to microwaves until the water has dissolved. The resulting material is an ultrafine powder. This method can be used to make Al/sub 2/O/sub 3/, NiO /plus/ Al/sub 2/O/sub 3/ and NiO as well as a number of other materials including GaBa/sub 2/Cu/sub 3/O/sub x/. 1 tab.

Meek, T.T.; Sheinberg, H.; Blake, R.D.

1987-04-24T23:59:59.000Z

139

Optimized ECR plasma apparatus with varied microwave window thickness  

DOE Patents (OSTI)

The present invention describes a technique to control the radial profile of microwave power in an ECR plasma discharge. In order to provide for a uniform plasma density to a specimen, uniform energy absorption by the plasma is desired. By controlling the radial profile of the microwave power transmitted through the microwave window of a reactor, the profile of the transmitted energy to the plasma can be controlled in order to have uniform energy absorption by the plasma. An advantage of controlling the profile using the window transmission characteristics is that variations to the radial profile of microwave power can be made without changing the microwave coupler or reactor design. 9 figs.

Berry, L.A.

1995-11-14T23:59:59.000Z

140

Optimized ECR plasma apparatus with varied microwave window thickness  

DOE Patents (OSTI)

The present invention describes a technique to control the radial profile of microwave power in an ECR plasma discharge. In order to provide for a uniform plasma density to a specimen, uniform energy absorption by the plasma is desired. By controlling the radial profile of the microwave power transmitted through the microwave window of a reactor, the profile of the transmitted energy to the plasma can be controlled in order to have uniform energy absorption by the plasma. An advantage of controlling the profile using the window transmission characteristics is that variations to the radial profile of microwave power can be made without changing the microwave coupler or reactor design.

Berry, Lee A. (Oak Ridge, TN)

1995-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "dayton hilltop microwave" 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

History of the Pulsed Power, Beams, and Microwaves Laboratory The Directed Energy Microwave Laboratory is a 4100 square foot facility located in  

E-Print Network (OSTI)

History of the Pulsed Power, Beams, and Microwaves Laboratory The Directed Energy Microwave of the Directed Energy Microwave Laboratory is to: · educate MS and PhD scientists and engineers

Sen, Pradeep

142

Microwave instabilities in Booster and AGS  

SciTech Connect

Microwave instabilities is evaluated for the Booster and AGS for the preparation of the relativistic heavy ion collider. We found that the Booster may require feedback system for the transverse instability at the high intensity proton operation. The coherent instability is not important for the nominal RhIC operational intensity.

Lee, S.Y.; Zhao, X.F.

1987-03-13T23:59:59.000Z

143

Environmental assessment: South microwave communication facilities  

SciTech Connect

Western Area Power Administration (Western) is proposing to construct, operate, and maintain eight microwave repeater stations in southwestern Colorado, southeastern Utah, and northern Arizona, in order to meet the minimum fade criteria established by the Western Systems Coordinating Council (WSCC) for the operation and protection of electric power systems. The proposed microwave facilities would increase the reliability of communication. This environmental assessment (EA) describes the existing environmental conditions and the impacts from construction of the eight microwave communication facilities. The EA was prepared in compliance with the National Environmental Policy Act of 1969, the Council on Environmental Quality Regulations (40 CFR 1500-1508), and the Department of Energy Guidelines (52 FR 47662, December 15, 1987). The proposed project would consist of constructing eight microwave facilities, each of which would include a self-supported lattice tower, an equipment building, a propane tank, distribution lines to provide electric power to the sites, and access roads to the sites. The facilities would be constructed in San Miguel and Montezuma Counties in Colorado, San Juan County, Utah, and Navajo, Apache, Coconino, and Yavapai Counties in Arizona. 20 refs., 2 figs., 2 tabs.

Not Available

1989-06-01T23:59:59.000Z

144

Interaction of high power microwave with plasma  

Science Conference Proceedings (OSTI)

An experimental proposal to investigate the physics of interaction of extremely intense (eEem/m?c ? 1) microwave in an overdense plasma is discussed. The output from a VIRCATOR (2 -- 10 GHz, ? 1 -- 3 GW) based pulse (?30 ns) powered ...

V. P. Anitha; Amita Das; Y. C. Saxena; Anurag Shyam; P. K. Kaw

2011-02-01T23:59:59.000Z

145

Effects of Microwave Radiation on Oil Recovery  

Science Conference Proceedings (OSTI)

A variety of oil recovery methods have been developed and applied to mature and depleted reservoirs in order to improve the efficiency. Microwave radiation oil recovery method is a relatively new method and has been of great interest in the recent years. Crude oil is typically co?mingled with suspended solids and water. To increase oil recovery

2011-01-01T23:59:59.000Z

146

Profiling Atmospheric Water Vapor by Microwave Radiometry  

Science Conference Proceedings (OSTI)

High-altitude microwave radiometric observations at frequencies near 92 and 183.3 GHz were used to study the potential of retrieving atmospheric water vapor profiles over both land and water. An algorithm based on an extended Kaiman-Bucy filter ...

J. R. Wang; J. L. King; T. T. Wilheit; G. Szejwach; L. H. Gesell; R. A. Nieman; D. S. Niver; B. M. Krupp; J. A. Gagliano

1983-05-01T23:59:59.000Z

147

Planar controlled zone microwave plasma system  

DOE Patents (OSTI)

An apparatus and method for initiating a process gas plasma. A conductive plate having a plurality of conductive fingers is positioned in a microwave applicator. An arc forms between the conductive fingers to initiate the formation of a plasma. A transport mechanism may convey process materials through the plasma. A spray port may be provided to expel processed materials.

Ripley, Edward B. (Knoxville, TN); Seals, Roland D. (Oak Ridge, TN); Morrell, Jonathan S. (Knoxvlle, TN)

2011-10-04T23:59:59.000Z

148

Apparatus and method for microwave processing of materials  

DOE Patents (OSTI)

Disclosed is a variable frequency microwave heating apparatus designed to allow modulation of the frequency of the microwaves introduced into a furnace cavity for testing or other selected applications. The variable frequency heating apparatus is used in the method of the present invention to monitor the resonant processing frequency within the furnace cavity depending upon the material, including the state thereof, from which the workpiece is fabricated. The variable frequency microwave heating apparatus includes a microwave signal generator and a high-power microwave amplifier or a microwave voltage-controlled oscillator. A power supply is provided for operation of the high-power microwave oscillator or microwave amplifier. A directional coupler is provided for detecting the direction and amplitude of signals incident upon and reflected from the microwave cavity. A first power meter is provided for measuring the power delivered to the microwave furnace. A second power meter detects the magnitude of reflected power. Reflected power is dissipated in the reflected power load. 10 figs.

Johnson, A.C.; Lauf, R.J.; Bible, D.W.; Markunas, R.J.

1996-05-28T23:59:59.000Z

149

A container for heat treating materials in microwave ovens  

DOE Patents (OSTI)

The efficiency of a microwave oven of a conventional two-source configuration and energy level is increased by providing the oven with a container for housing a refractory material to be treated. The container is formed to top and bottom walls transparent to microwaves while the sidewalls, in a circular configuration, are formed of a nonmetallic material opaque to microwave radiation for reflecting the radiation penetrating the top and bottom walls radially inwardly into the center of the container wherein a casket of heat-insulating material is provided for housing the material to be heat treated. The reflection of the microwave radiation from the sidewalls increases the concentration of the microwaves upon the material being heat treated while the concentration of the microwaves upon the material being heat treated while the casket retains the heat to permit the heating of the material to a substantially higher temperature than achievable in the oven without the container.

Holcombe, C.E.; Dykes, N.L.; Kimrey, H.D. Jr.; Mills, J.E.

1988-01-26T23:59:59.000Z

150

Ground-based Microwave Cloud Tomography  

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

Microwave Cloud Tomography Microwave Cloud Tomography Experiment, SGP, May 15-June 15, 2009 Lead Scientist Dong Huang, BNL Co-Investigators Al Gasiewski, UC Boulder Maria Cadeddu, ANL Warren Wiscombe, BNL Radiation Processes Working Group March 30, 2009 multiple radiometers All good cloud radiation modelers should close their airplane window shades so as not to be corrupted by the spectacle of real 3D clouds. - Roger Davies In case you forget to do this, you see 3/30/2009 ARM RPWG 2 Effects of cloud structure on radiation 3/30/2009 ARM RPWG 3 Typical climate model - Cloud fraction & mean water content - Horizontally uniform clouds, no side radiation - Assumption on overlap Courtesy of Bernhard Mayer Cloud structure important to radiation - Cumulus (Benner & Evans 2001, Pincus et al. 2005), deep convection (DiGiuseppe &

151

Variational Assimilation of Global Microwave Rainfall Retrievals: Physical and Dynamical Impact on GEOS Analyses  

Science Conference Proceedings (OSTI)

Global microwave rainfall retrievals from a five-satellite constellation, including the Tropical Rainfall Measuring Mission Microwave Imager, Special Sensor Microwave Imager from the Defense Meteorological Satellite Program F13, F14, and F15, and ...

Xin Lin; Sara Q. Zhang; Arthur Y. Hou

2007-08-01T23:59:59.000Z

152

Spatial Variability of Summer Florida Precipitation and Its Impact on Microwave Radiometer Rainfall-Measurement Systems  

Science Conference Proceedings (OSTI)

Three-dimensional radar data for three summer Florida storm are used as input to a microwave radiative transfer model. The model simulates microwave brightness observations by a 19-GHz, nadir-pointing, satellite-borne microwave radiometer.

B. J. Turner; G. L. Austin

1993-02-01T23:59:59.000Z

153

Rainfall Estimation over Oceans from SMMR and SSM/I Microwave Data  

Science Conference Proceedings (OSTI)

Passive microwave measurements made by the Scanning Multichannel Microwave Radiometer (SMMR) and the Special Sensor Microwave/Imager (SSM/I) reveal information about rain and precipitation-sized ice in the field of view (FOV) of the instruments. ...

C. Prabhakara; G. Dalu; G. L. Liberti; J. J. Nucciarone; R. Suhasini

1992-06-01T23:59:59.000Z

154

A prototype system for measuring microwave frequency reflections from the breast  

Science Conference Proceedings (OSTI)

Microwave imaging of the breast is of interest for monitoring breast health, and approaches to active microwave imaging include tomography and radar-based methods. While the literature contains a growing body of work related to microwave breast imaging, ...

J. Bourqui; J. M. Sill; E. C. Fear

2012-01-01T23:59:59.000Z

155

Applications for Microwave Generators in the Process Industries  

E-Print Network (OSTI)

Microwaves find widespread use in radar applications, in telephonic communications, and in the generation of thermal energy for heating. It is this last use that is of interest here. The use of microwave generators to dry heat-sensitive materials and regenerate beds of solid adsorbents is currently being investigated at The University of Texas. This paper summarizes the first phase of this program, which involves microwave drying of various types of polymers. Future research goals and programs are also presented.

Humphrey, J. L.; Vasilakos, N. P.

1983-01-01T23:59:59.000Z

156

Product Standards for Microwaves (Japan) | Open Energy Information  

Open Energy Info (EERE)

Product Standards for Microwaves (Japan) Product Standards for Microwaves (Japan) Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Product Standards for Microwaves (Japan) Focus Area: Appliances & Equipment Topics: Policy Impacts Website: www.eccj.or.jp/top_runner/pdf/tr_microwaveoven.pdf Equivalent URI: cleanenergysolutions.org/content/product-standards-microwaves-japan Language: English Policies: "Deployment Programs,Regulations" is not in the list of possible values (Deployment Programs, Financial Incentives, Regulations) for this property. DeploymentPrograms: Industry Codes & Standards Regulations: Appliance & Equipment Standards and Required Labeling This Energy Conservation Center Japan (ECCJ) document was created as a guide in response to its newly established set of standards and labelling

157

Microwave Sintering of CaO Stabilized Nature Baddeleyite  

Science Conference Proceedings (OSTI)

Microwave sintering could fast heating and sintering. ... Characterization of Burrows from Mining District of Pachuca - Real Del Monte, in Hidalgo State and...

158

Low Cost Processing: Plasma, Microwave, Laser, Melting and Casting  

Science Conference Proceedings (OSTI)

Mar 5, 2013 ... Cost Affordable Titanium IV: Low Cost Processing: Plasma, ... obtained by using microwave energy as the consolidation method of Mg-Ti alloys.

159

Microwave Assisted Synthesis of Nano Hydroxyapatite from Avian ...  

Science Conference Proceedings (OSTI)

Presentation Title, Microwave Assisted Synthesis of Nano Hydroxyapatite from Avian Eggshell Biowaste for Tissue Engineering. Author(s), Kajal K Mallick.

160

Micro Microwave Does Pinpoint Cooking for Miniaturized Labs  

Science Conference Proceedings (OSTI)

... Researchers at the National Institute of Standards and Technology (NIST) and ... Based on classical theory of how microwave energy is absorbed ...

2012-04-16T23:59:59.000Z

Note: This page contains sample records for the topic "dayton hilltop microwave" from the National Library of EnergyBeta (NLEBeta).
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they are not comprehensive nor are they the most current set.
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to obtain the most current and comprehensive results.


161

206 Preparation of Porous Mullite Composite by Microwave Sintering  

Science Conference Proceedings (OSTI)

During the microwave sintering, an insulation structure based on hybrid heating mode was well designed with the wall of mullite and the aided heaters of SiC...

162

WIRELESS MICROWAVE ACOUSTIC SENSOR SYSTEM FOR CONDITION MONITORING...  

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

WIRELESS MICROWAVE ACOUSTIC SENSOR SYSTEM FOR CONDITION MONITORING IN POWER PLANT ENVIRONMENTS Project DE-FE0007379TDD NETL, Morgantown, WV, March 14, 2012. DOE NETL Program:...

163

System to Continuously Produce Carbon Fiber via Microwave-Assisted ...  

ORNL 2011-G00246/jcn UT-B ID 200501518 09.2011 System to Continuously Produce Carbon Fiber via Microwave-Assisted Plasma Processing Technology Summary

164

Microwave Brazing, An Energy Efficient Method for Joining ...  

Science Conference Proceedings (OSTI)

However, microwave brazing methods for joining ceramics to metals, with the ... Air Brazing of Nicrofer-6025HT to BSCF for Oxygen Separation Membranes.

165

Simple microwave field imaging technique using hot atomic vapor cells  

E-Print Network (OSTI)

We demonstrate a simple technique for microwave field imaging using alkali atoms in a vapor cell. The microwave field to be measured drives Rabi oscillations on atomic hyperfine transitions, which are detected in a spatially resolved way using a laser beam and a CCD camera. Our vapor cell geometry enables single-shot recording of two-dimensional microwave field images with 350 {\\mu}m spatial resolution. Using microfabricated vapor cell arrays, a resolution of a few micrometers seems feasible. All vector components of the microwave magnetic field can be imaged. Our apparatus is simple and compact and does not require cryogenics or ultra-high vacuum.

Bhi, Pascal

2012-01-01T23:59:59.000Z

166

Simple microwave field imaging technique using hot atomic vapor cells  

E-Print Network (OSTI)

We demonstrate a simple technique for microwave field imaging using alkali atoms in a vapor cell. The microwave field to be measured drives Rabi oscillations on atomic hyperfine transitions, which are detected in a spatially resolved way using a laser beam and a camera. Our vapor cell geometry enables single-shot recording of two-dimensional microwave field images with 350 {\\mu}m spatial resolution. Using microfabricated vapor cell arrays, a resolution of a few micrometers seems feasible. All vector components of the microwave magnetic field can be imaged. Our apparatus is simple and compact and does not require cryogenics or ultra-high vacuum.

Pascal Bhi; Philipp Treutlein

2012-07-20T23:59:59.000Z

167

NIST Prototype 'Optics Table on a Chip' Places Microwave ...  

Science Conference Proceedings (OSTI)

... E. Zakka-Bajjani, F. Nguyen, M. Lee, LR Vale, RW Simmonds and J. Aumentado. Quantum superposition of a single microwave ...

2011-10-14T23:59:59.000Z

168

Understanding Non-thermal Microwave Effects in Materials Processing  

Science Conference Proceedings (OSTI)

Difference between Life and Death of Bacterium against Microwave Power under ... Sintering and Plastic Deformation of Ceramics under Pulsed Electric Current.

169

Exchange of Cs Ion in Clay Minerals by Microwave Application  

Science Conference Proceedings (OSTI)

Difference between Life and Death of Bacterium against Microwave Power under ... Sintering and Plastic Deformation of Ceramics under Pulsed Electric Current.

170

Dramatic Structuring of Water using Polarized Microwave and ...  

Science Conference Proceedings (OSTI)

Raman spectroscopy reveals that liquid water treated with 2.45 GHz polarized microwave and 13.56 MHz radiofrequency radiation undergoes dramatic...

171

Determining Cloud Ice Water Path from High-Frequency Microwave...  

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

Determining Cloud Ice Water Path from High-Frequency Microwave Measurements G. Liu Department of Meteorology Florida State University Tallahassee, Florida Introduction A better...

172

A Continuous Flow Microwave Reactor for Organic Synthesis.  

E-Print Network (OSTI)

??Microwave reactors are important tools in chemical synthesis, as they can lead to unprecedented reductions in reaction times and improved reaction yields. In order to (more)

Sauks, Jennifer

2013-01-01T23:59:59.000Z

173

Session Papers Preliminary Analysis of Ground-Based Microwave...  

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

Analysis of Ground-Based Microwave and Infrared Radiance Observations During the Pilot Radiation OBservation Experiment E. R. Westwater, Y. Han, J. H. Churnside, and J. B....

174

Posters Preliminary Analysis of Ground-Based Microwave and Infrared...  

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

Analysis of Ground-Based Microwave and Infrared Radiance Observations During the Pilot Radiation OBservation Experiment E. R. Westwater, Y. Han, J. H. Churnside, and J. B....

175

Influence of Microwave Radiation on Phosphorus-removal Process ...  

Science Conference Proceedings (OSTI)

Microwave radiation on the ore fines was carried out using MW-HS ... A Pilot- plant Scale Test on DRI Preparation from High-alumina Limonite Ore by...

176

MICROWAVE HEATING SIMULATION OF METALS AND DIELECTRIC CERAMICS.  

E-Print Network (OSTI)

??The research objectives proposed to study metal processing using a modular industrial microwave oven. The intent of the oven was to perform casting for metal (more)

Warren, Brian C.

2013-01-01T23:59:59.000Z

177

System to continuously produce carbon fiber via microwave ...  

A system to continuously produce fully carbonized or graphitized carbon fibers using microwave-assisted plasma (MAP) processing comprises an elongated chamber in ...

178

Using Microwave Radiation for Removing Heavy Metal Ions and ...  

Science Conference Proceedings (OSTI)

Presentation Title, Using Microwave Radiation for Removing Heavy Metal Ions and Producing Biofuels. Author(s), Aharon Gedanken. On-Site Speaker (Planned )...

179

Synthesis of Divalent Sn Compounds under Microwave Non ...  

Science Conference Proceedings (OSTI)

Author(s), Hirotsugu Takizawa, Nozomi Sato, Jun Fukushima, Yamato Hayashi. On-Site Speaker (Planned), Hirotsugu Takizawa. Abstract Scope, Microwave...

180

Microwave-assisted solvent extraction and gas chromatography ion ...  

Science Conference Proceedings (OSTI)

May 17, 2006 ... sistent organochlorine pesticides (POPs) in marine sedi- ment was ... variables microwave power, extraction time and tempera- ture, amount of...

Note: This page contains sample records for the topic "dayton hilltop microwave" 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

Investigation on a Microwave High-Temperature Air Heat Exchanger  

Science Conference Proceedings (OSTI)

In present paper, an energy efficient air heat exchanger, based on accumulation of the heat generated by microwave absorbing materials is presented according ...

182

2300 C Ultra-high Temperature Microwave Assist Technology ...  

Science Conference Proceedings (OSTI)

The design is based on a traditional graphite furnace with graphite insulation and heating elements. A microwave transition was specially designed to deliver the...

183

Microwave heating for adsorbents regeneration and oil sands coke activation.  

E-Print Network (OSTI)

??Microwave heating has unique advantages compared to convection-radiation heating methods including fast heating rate and selective heating of objects. This thesis studied two applications of (more)

Chen, Heng

2010-01-01T23:59:59.000Z

184

Continuous flow microwave heating : evaluation of system efficiency and enzyme inactivation kinetics.  

E-Print Network (OSTI)

??A continuous flow microwave heating system was set up by using one domestic microwave oven (1000W nominal output at 2450MHz). Water was run through the (more)

Lin, Man Guang, 1966-

2004-01-01T23:59:59.000Z

185

Microwave-Assisted Heterogeneous Catalytic Transesterification of Soybean Oil  

Science Conference Proceedings (OSTI)

Biodiesel, as a renewable bioenergy, recently has been researched in regard to biodiesel products. In this study, soybean oil was converted to biodiesel with methanol using several heterogeneous catalysts, furthermore, the process by means of microwave ... Keywords: Biodiesel, Transesterification, Microwave, Heterogeneous

Ming-Chien Hsiao; Pei-Hung Liao; Hsiu-Ling Hsu

2012-06-01T23:59:59.000Z

186

GIMS-based method for vegetation microwave monitoring  

Science Conference Proceedings (OSTI)

The objective of this paper is threefold: (1) To present a working methodology for the combined use of modeling technology and microwave remote-sensing measurements in the assessment of attenuation of electromagnetic waves by the vegetation cover; (2) ... Keywords: GIMS, Microwave, Remote sensing, Vegetative cover

Vladimir F. Krapivin; Anatolij M. Shutko; Alexander A. Chukhlantsev; Sergei P. Golovachev; Gary W. Phillips

2006-03-01T23:59:59.000Z

187

Microwave measurement of water content in flowing crude oil  

Science Conference Proceedings (OSTI)

A microwave method and a microwave device for measurement of water content in flowing crude oil are proposed. The method is based on measuring power of electromagnetic waves propagated through a transmission line and reflected from the load that is a ...

Yu. V. Makeev; A. P. Lifanov; A. S. Sovlukov

2013-01-01T23:59:59.000Z

188

Preliminary Design of an Industrial/Commercial Microwave Clothes Dryer  

Science Conference Proceedings (OSTI)

Drying fabrics with microwave energy can reduce both the drying time and the drying temperature. This process provides a new level of fabric care to make all fabrics last longer and look better. The purpose of designing a 125-pound commercial/industrial microwave dryer was to perform cost exercises and calculate payback periods.

1997-09-09T23:59:59.000Z

189

Microwave sintering of sol-gel derived abrasive grain  

DOE Patents (OSTI)

A method is provided for making microwave-sintered, free flowing alpha alumina-based ceramic abrasive grain, under conditions effective to couple microwaves with calcined alpha alumina-based abrasive gain precursor and sinter it at a temperature of at least about 1150.degree. C.

Plovnick, Ross (St. Louis Park, MN); Celikkaya, Ahmet (Woodbury, MN); Blake, Rodger D. (Tuscon, AZ)

1997-01-01T23:59:59.000Z

190

Microwave sintering of single plate-shaped articles  

DOE Patents (OSTI)

Apparatus and method for high temperature sintering of plate-shaped articles of alumina, magnesia, silica, yttria, zirconia, and mixtures thereof using microwave radiation. An article is placed within a sintering structure located within a sintering container which is placed in a microwave cavity for heating. The rates at which heating and cooling take place is controlled.

Katz, Joel D. (Los Alamos, NM); Blake, Rodger D. (Tucson, AZ)

1995-01-01T23:59:59.000Z

191

Microwave Plasma Monitoring System For Real-Time Elemental Analysis  

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

Microwave Plasma Monitoring System For Real-Time Elemental Analysis Microwave Plasma Monitoring System For Real-Time Elemental Analysis Microwave Plasma Monitoring System For Real-Time Elemental Analysis The invention apparatus can also be used to monitor for the presence of halogens, sulfur and silicon. Available for thumbnail of Feynman Center (505) 665-9090 Email Microwave Plasma Monitoring System For Real-Time Elemental Analysis There has been invented a process for analyzing ambient air in a microwave induced plasma without use of an additional carrier gas. There has also been invented an apparatus for analyzing ambient air, other sample gas, or nebulized and desolvated liquids wherein a novel arrangement of plasma gas and sample gas conduits is used to enhance dependability of the plasma. This apparatus embodiment of the invention has a concentric arrangement of

192

Mobile system for microwave removal of concrete surfaces  

DOE Patents (OSTI)

A method and apparatus are disclosed for the microwave removal of contaminated concrete surfaces. The apparatus comprises a housing adapted to pass over a support surface. The housing includes a waveguide for directing microwave energy to the surface at an angle maximizing absorption of microwave energy by the surface. The apparatus is further provided with a source of microwave energy operably associated with the waveguide, wherein the microwave energy has a frequency of between about 10.6 GHz and about 24 GHz and acts to remove the uppermost layer from the surface. The apparatus further includes a debris containment assembly comprising a vacuum assembly operably associated with the housing. The vacuum assembly is adapted to remove debris from the area adjacent the surface. 7 figs.

White, T.L.; Bigelow, T.S.; Schaich, C.R.; Foster, D. Jr.

1997-06-03T23:59:59.000Z

193

Mobile system for microwave removal of concrete surfaces  

DOE Patents (OSTI)

A method and apparatus for the microwave removal of contaminated concrete surfaces. The apparatus comprises a housing adapted to pass over a support surface. The housing includes a waveguide for directing microwave energy to the surface at an angle maximizing absorption of microwave energy by the surface. The apparatus is further provided with a source of microwave energy operably associated with the waveguide, wherein the microwave energy has a frequency of between about 10.6 GHz and about 24 GHz and acts to remove the uppermost layer from the surface. The apparatus further includes a debris containment assembly comprising a vacuum assembly operably associated with the housing. The vacuum assembly is adapted to remove debris from the area adjacent the surface.

White, Terry L. (Oak Ridge, TN); Bigelow, Timothy S. (Knoxville, TN); Schaich, Charles R. (Lenoir City, TN); Foster, Jr., Don (Knoxville, TN)

1997-01-01T23:59:59.000Z

194

Coupled Electromagnetic and Thermal Modeling of Microwave Tissue Processing  

E-Print Network (OSTI)

This study deals with 3D finite element modeling of microwave tissue processing using Comsol software 4.0. Maxwells equations are coupled with heat conduction equation to determine electromagnetic field distribution and temperature profile within tissue sample in a reagent inside a domestic microwave oven. The microwave power generation term is calculated. Also, temperature distribution obtained is compared with experimental point measurements recorded in the centre of the tissue using a shielded K type thermocouple. Good agreement is found between numerical and experimental data. The effect of size of both reagent and tissue as well as tissue type on microwave heating patterns within tissue sample is investigated. Studies shows that the reagent volume has greater effect than other factors. The results of the study is considered as a basic foundation for development of coupled electromagnetic thermal models of microwave heating of tissue specimens. The model assists in choosing appropriate process parameters for achieving uniform temperature distribution within tissue specimen.

Osama A Hassan; Ahmed H K; Il Ences; Ahmed M El Bialy

2013-01-01T23:59:59.000Z

195

Container for heat treating materials in microwave ovens  

DOE Patents (OSTI)

The efficiency of a microwave oven of a conventional two-source configuration and energy level is increased by providing the oven with a container for housing a refractory material to be treated. The container is formed of top and bottom walls transparent to microwaves while the sidewalls, in a circular configuration, are formed of a nonmetallic material opaque to microwave radiation reflecting the radiation penetrating the top and bottom walls radially inwardly into the center of the container wherein a casket of heat-insulating material is provided for housing the material to be heat treated. The reflection of the microwave radiation from the sidewalls increases the concentration of the microwaves upon the material being heat treated while the casket retains the heat to permit the heating of the material to a substantially higher temperature than achieveable in the oven without the container.

Holcombe, Cressie E. (Farragut, TN); Dykes, Norman L. (Oak Ridge, TN); Kimrey, Jr., Harold D. (Knoxville, TN); Mills, James E. (Knoxville, TN)

1989-01-01T23:59:59.000Z

196

INEXPENSIVE, OFF THE SHELF HYBRID MICROWAVE SYSTEM  

Science Conference Proceedings (OSTI)

A hybrid-heating microwave oven provides the energy to heat small 10-gram samples of spent metal tritide storage bed material to release tenaciously held decay product {sup 3}He. Complete mass balance procedures require direct measurement of added or produced gases on a tritide bed, and over 1100 C is necessary to release deep trapped {sup 3}He. The decomposition of non-radioactive CaCO{sub 3} and the quantitative measurement of CO{sub 2} within 3% of stoichiometry demonstrate the capabilities of the apparatus to capture generated (released) gases.

Walters, T; Paul Burket, P; John Scogin, J

2007-06-21T23:59:59.000Z

197

Theoretical Overview of Cosmic Microwave Background Anisotropy  

E-Print Network (OSTI)

The theoretical basis for the prediction of anisotropies in the cosmic microwave background is very well developed. Very low amplitude density and temperature perturbations produce small gravitational effects, leading to an anisotropy that is a combination of temperature fluctuations at the surface of last scattering and gravitational redshifts both at last scattering and along the path to the observer. All of the primary anisotropy can be handled by linear perturbation theory, which allows a very accurate calculation of the predicted anisotropy from different models of the Universe.

E. L. Wright

2003-05-29T23:59:59.000Z

198

ARM: Microwave Radiometer data (MWR Profiles - QME), water vapor, temp, cloud liquid water, precip water retrievals  

DOE Data Explorer (OSTI)

Microwave Radiometer data (MWR Profiles - QME), water vapor, temp, cloud liquid water, precip water retrievals

Maria Cadeddu

199

Modeling of Microwave Ovens with Perforated Metal Walls Erin M. Kiley and Vadim V. Yakovlev  

E-Print Network (OSTI)

engineers developing new microwaveable products. This can be explained by the particularly complex nature, modeling. I. INTRODUCTION While historically, technological progress in microwave power engineering has microwave ovens - the most widespread microwave heating devices - have not yet been notably adopted by food

Yakovlev, Vadim

200

Microwave processing improvements for methane conversion to ethylene  

DOE Green Energy (OSTI)

This is the final report of a one-year, Laboratory Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). The project`s objective was to investigate microwave enhanced catalysis. Published work by others had demonstrated improved selectivity in microwave-driven catalytic conversion of 2-methylpentane to its isomers. We reproduced their experiment, discovering that there is no improvement in selectivity using microwaves. The selectivity at a given conversion was the same for both microwave heated and conventionally heated catalyst beds. Meetings with the authors of the previously published work led to the conjecture that their catalyst was not being prepared properly, leading to anomalously low selectivity for their conventional heating runs. An optical temperature diagnostic suitable for use on a microwave applicator was developed and characterized in this project. This pyrometer can measure the temperature of small scale features on the catalyst bed, and it has a fast response that can follow the rapid heating often encountered in a microwave processing system. The behavior of the microwave applicator system was studied, and theoretical models were developed to yield insight about the stability and control of the system.

Stringfield, R.; Ott, K.; Nelson, E.; Anderson, G.; Chen, Dye-Zone; Dyer, T. [Los Alamos National Lab., NM (United States); Thomas, J. [Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (United States)

1997-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "dayton hilltop microwave" 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

Central symmetry and antisymmetry of the microwave background inhomogeneities on Wilkinson Microwave Anisotropy Probe maps  

E-Print Network (OSTI)

We performed a visual and numeric analysis of the deviation of the microwave background temperature on WMAP maps. We proved that the microwave background inhomogeneities possess the property of the central symmetry resulting from the two kinds of central symmetry of the opposite signs. After the computer modeling we have established the relation between the coefficient of the central symmetry and the values of the symmetrical and antisymmetrical components of the deviation of the temperature. The obtained distribution of the symmetry coefficient on the map of the celestial sphere in Mollweide projection testifies on a contribution of both kinds of central symmetry which is approximately equal on the average in absolute magnitude but opposite by sign and where one kind of the central symmetry prevails on some sections of the celestial sphere and another kind - on the others. The average resulting value of the symmetry coefficient on the sections with angular measures less than 15-200 varies within the range fr...

Kudriavtcev, Iurii

2010-01-01T23:59:59.000Z

202

Electron beam collector for a microwave power tube  

DOE Patents (OSTI)

This invention relates to a cylindrical, electron beam collector that efficiently couples the microwave energy out of a high power microwave source while stopping the attendant electron beam. The interior end walls of the collector are a pair of facing parabolic mirrors and the microwave energy from an input horn is radiated between the two mirrors and reassembled at the entrance to the output waveguide where the transmitted mode is reconstructed. The mode transmission through the collector of the present invention has an efficiency of at least 94%.

Dandl, Raphael A. (Oak Ridge, TN)

1980-01-01T23:59:59.000Z

203

Compact microwave ion source for industrial applications  

SciTech Connect

A 2.45 GHz microwave ion source for ion implanters has many good properties for industrial application, such as easy maintenance and long lifetime, and it should be compact for budget and space. But, it has a dc current supply for the solenoid and a rf generator for plasma generation. Usually, they are located on high voltage platform because they are electrically connected with beam extraction power supply. Using permanent magnet solenoid and multi-layer dc break, high voltage deck and high voltage isolation transformer can be eliminated, and the dose rate on targets can be controlled by pulse duty control with semiconductor high voltage switch. Because the beam optics does not change, beam transfer components, such as focusing elements and beam shutter, can be eliminated. It has shown the good performances in budget and space for industrial applications of ion beams.

Cho, Yong-Sub; Kim, Dae-Il; Kim, Han-Sung; Seol, Kyung-Tae; Kwon, Hyeok-Jung; Hong, In-Seok [Proton Engineering Frontier Project, Korea Atomic Energy Research Institute, Daejeon 305-353 (Korea, Republic of)

2012-02-15T23:59:59.000Z

204

Self-consistent microwave plasma heating rates  

SciTech Connect

Under conditions within a hot overdense plasma corona where the field frequency is much less than the electron plasma frequency and the field period is much less than the hydrodynamic expansion time it is shown that electron field reversal heating can exceed the combined classical heating rates due to inverse bremsstrahlung (skin effect) and field pressure (PdV) by a factor approximately v/ sub e//2v/sub i/ (half the ratio of electron and ion thermal velocities). In particular this rate can exceed the inertial expansion cooling rate at a collisionless corona density of approximately 1 percent solid core density and could be realized experimentally at core temperatures approximately 3--5 keV and microwave field intensities approximately 1 MG. (auth)

Ensley, D.L.; White, R.H.

1975-10-01T23:59:59.000Z

205

Microwave-Regenerated Diesel Exhaust Particulate Filter  

Science Conference Proceedings (OSTI)

Development of a microwave-regenerated particulate filter system has evolved from bench scale work to actual diesel engine experimentation. The filter system was initially evaluated on a stationary mounted 1.2-L diesel engine and was able to remove a significant amount of carbon particles from the exhaust. The ability of the microwave energy to regenerate or clean the filter was also demonstrated on this engine under idle conditions. Based on the 1.2-L experiments, improvements to the filter design and materials were implemented and the system was re-evaluated on a vehicle equipped with a 7.3-L diesel engine. The 7.3-L engine was selected to achieve heavy filter loading in a relatively short period of time. The purpose of these experiments was to evaluate filter-loading capacity, power requirements for regeneration, and filter regeneration efficiency. A more detailed evaluation of the filter was performed on a stationary mounted 1.9-L diesel engine. The effect of exhaust flow rate, loading, transients, and regeneration on filter efficiency was evaluated with this setup. In addition, gaseous exhaust emissions were investigated with and without an oxidation catalyst on the filter cartridge during loading and regeneration. (SAE Paper SAE-2001-01-0903 2001 SAE International. This paper is published on this website with permission from SAE International. As a user of this website, you are permitted to view this paper on-line, download this pdf file and print one copy of this paper at no cost for your use only. The downloaded pdf file and printout of this SAE paper may not be copied, distributed or forwarded to others or for the use of others.)

Nixdorf, Richard D. (Industrial Ceramic Solution, LLC); Green, Johney Boyd; Story, John M.; Wagner, Robert M. (Oak Ridge National Laboratory)

2001-03-05T23:59:59.000Z

206

Dayton Power and Light - Business and Government Energy Efficiency...  

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

lighting: 1.50bulb (32 watts) Delamping: 1.20-1.50ln. ft. or 0.05rated fixture watt Relamping: 1 - 1.25 Lighting Sensors: 15-60sensor, 0.04connected watt for...

207

Dayton, New Jersey: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

72607°, -74.5101536° 72607°, -74.5101536° 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":40.372607,"lon":-74.5101536,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

208

The Dayton Accords and the Escalating Tensions in Kosovo  

E-Print Network (OSTI)

ended the war in Bosnia and Herzegovina, were the primaryterritory of Bosnia and Herzegovina, were the primarythe violence in Bosnia and Herzegovina to a halt, it had

Carson, Christopher

2013-01-01T23:59:59.000Z

209

6tvtnf r &' tnt-' G Dayton P. Kirkham  

E-Print Network (OSTI)

et des singes [HUB68]. A l'opposé de l'approche ascendante, la théorie constructiviste propose que la

Reich, Peter B.

210

Dayton Power and Light - Business and Government Energy Efficiency...  

Open Energy Info (EERE)

conditioners, Chillers, Clothes Washers, Compressed air, CustomOthers pending approval, Energy Mgmt. SystemsBuilding Controls, Heat pumps, Lighting, Lighting ControlsSensors,...

211

L4, Ultrafast Microwave-Stimulated Sculpting and Thermoelectric ...  

Science Conference Proceedings (OSTI)

... of sulfur doped, Bi2Te3, Bi2Se3, and Sb2Te3 by microwave-stimulation. ... which acts as both a shape-mediating agent as well as for dopant delivery.

212

Analytical scanning evanescent microwave microscope and control stage  

DOE Patents (OSTI)

A scanning evanescent microwave microscope (SEMM) that uses near-field evanescent electromagnetic waves to probe sample properties is disclosed. The SEMM is capable of high resolution imaging and quantitative measurements of the electrical properties of the sample. The SEMM has the ability to map dielectric constant, loss tangent, conductivity, electrical impedance, and other electrical parameters of materials. Such properties are then used to provide distance control over a wide range, from to microns to nanometers, over dielectric and conductive samples for a scanned evanescent microwave probe, which enable quantitative non-contact and submicron spatial resolution topographic and electrical impedance profiling of dielectric, nonlinear dielectric and conductive materials. The invention also allows quantitative estimation of microwave impedance using signals obtained by the scanned evanescent microwave probe and quasistatic approximation modeling. The SEMM can be used to measure electrical properties of both dielectric and electrically conducting materials.

Xiang, Xiao-Dong; Gao, Chen; Duewer, Fred; Yang, Hai Tao; Lu, Yalin

2013-01-22T23:59:59.000Z

213

Microwave plasma chemical vapor deposition of nano-composite...  

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

plasma chemical vapor deposition of nano-composite CPt thin-films Title Microwave plasma chemical vapor deposition of nano-composite CPt thin-films Publication Type Journal...

214

Microwave Plasma Chemical Vapor Depositon of Nano-Structured...  

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

Plasma Chemical Vapor Depositon of Nano-Structured SnC Composite Thin-Film anodes for Li-ion Battteries Title Microwave Plasma Chemical Vapor Depositon of Nano-Structured SnC...

215

Heterogeneous breast phantom development for microwave imaging using regression models  

Science Conference Proceedings (OSTI)

As new algorithms for microwave imaging emerge, it is important to have standard accurate benchmarking tests. Currently, most researchers use homogeneous phantoms for testing new algorithms. These simple structures lack the heterogeneity of the dielectric ...

Camerin Hahn; Sima Noghanian

2012-01-01T23:59:59.000Z

216

High-precision optical and microwave signal synthesis and distribution  

E-Print Network (OSTI)

In this thesis, techniques for high-precision synthesis of optical and microwave signals and their distribution to remote locations are presented. The first topic is ultrafast optical pulse synthesis by coherent superposition ...

Kim, Jung-Won, 1976-

2007-01-01T23:59:59.000Z

217

Field Performance of a Spinning-Reflector Microwave Radiometer  

Science Conference Proceedings (OSTI)

In the winter of 1986, two microwave radiometers were operated side by side at a high-altitude weather observation site in the central Sierra Nevada for the purpose of comparing measurements in a variety of ambient weather conditions. The ...

Belay B. Demoz; Arlen W. Huggins; Joseph A. Warburton; Richard L. Smith

1993-06-01T23:59:59.000Z

218

Frontal Rainfall Observation by a Commercial Microwave Communication Network  

Science Conference Proceedings (OSTI)

A novel approach for reconstruction of rainfall spatialtemporal dynamics from a wireless microwave network is presented. It employs a stochastic spacetime model based on a rainfall advection model, assimilated using a Kalman filter. The ...

Artem Zinevich; Hagit Messer; Pinhas Alpert

2009-07-01T23:59:59.000Z

219

Evaluation of Passive Microwave Precipitation Algorithms in Wintertime Midlatitude Situations  

Science Conference Proceedings (OSTI)

The second intercomparison project of the Global Precipitation Climatology Project examined the estimation of midlatitude, cool-season precipitation. As part of that effort, the authors report here on the results of two microwave techniques the ...

Andrew J. Negri; Eric J. Nelkin; Robert F. Adler; George J. Huffman; Christian Kummerow

1995-02-01T23:59:59.000Z

220

Correcting Microwave Precipitation Retrievals for near-Surface Evaporation  

E-Print Network (OSTI)

This paper compares two methods for correcting passive or active microwave surface precipitation estimates based on hydrometeors sensed aloft that may evaporate before landing. These corrections were derived using two years ...

Surussavadee, Chinnawat

Note: This page contains sample records for the topic "dayton hilltop microwave" 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

Temperature Profiling with Neural Network Inversion of Microwave Radiometer Data  

Science Conference Proceedings (OSTI)

A neural network is used to obtain vertical profiles of temperature from microwave radiometer data. The overall rms error in the retrieved profiles of a test dataset was only about 8% worse than the overall error using an optimized statistical ...

James H. Churnside; Thomas A. Stermitz; Judith A. Schroeder

1994-02-01T23:59:59.000Z

222

A Screening Methodology for Passive Microwave Precipitation Retrieval Algorithms  

Science Conference Proceedings (OSTI)

The success of any passive microwave precipitation retrieval algorithm relies on the proper identification of rain areas and the elimination of surface areas that produce a signature similar to that of precipitation. A discussion on the impact of ...

Ralph R. Ferraro; Eric A. Smith; Wesley Berg; George J. Huffman

1998-05-01T23:59:59.000Z

223

Passive Microwave Brightness Temperatures as Proxies for Hailstorms  

Science Conference Proceedings (OSTI)

The Tropical Rainfall Measuring Mission (TRMM) satellite has been used to infer distributions of intense thunderstorms. Besides the lightning measurements from TRMM, the radar reflectivities and passive microwave brightness temperatures have been ...

Daniel J. Cecil

2009-06-01T23:59:59.000Z

224

Quantifying Global Uncertainties in a Simple Microwave Rainfall Algorithm  

Science Conference Proceedings (OSTI)

While a large number of methods exist in the literature for retrieving rainfall from passive microwave brightness temperatures, little has been written about the quantitative assessment of the expected uncertainties in these rainfall products at ...

Christian Kummerow; Wesley Berg; Jody Thomas-Stahle; Hirohiko Masunaga

2006-01-01T23:59:59.000Z

225

Neural network microwave precipitation retrievals and modeling results  

E-Print Network (OSTI)

We describe a simulation methodology used to develop and validate precipitation retrieval algorithms for current and future passive microwave sounders with emphasis on the NPOESS (National Polar-orbiting Operational ...

Leslie, R. Vincent

226

Analytical scanning evanescent microwave microscope and control stage  

DOE Patents (OSTI)

A scanning evanescent microwave microscope (SEMM) that uses near-field evanescent electromagnetic waves to probe sample properties is disclosed. The SEMM is capable of high resolution imaging and quantitative measurements of the electrical properties of the sample. The SEMM has the ability to map dielectric constant, loss tangent, conductivity, electrical impedance, and other electrical parameters of materials. Such properties are then used to provide distance control over a wide range, from to microns to nanometers, over dielectric and conductive samples for a scanned evanescent microwave probe, which enable quantitative non-contact and submicron spatial resolution topographic and electrical impedance profiling of dielectric, nonlinear dielectric and conductive materials. The invention also allows quantitative estimation of microwave impedance using signals obtained by the scanned evanescent microwave probe and quasistatic approximation modeling. The SEMM can be used to measure electrical properties of both dielectric and electrically conducting materials.

Xiang, Xiao-Dong (Danville, CA); Gao, Chen (Anhui, CN); Duewer, Fred (Albany, CA); Yang, Hai Tao (Albany, CA); Lu, Yalin (Chelmsford, MA)

2009-06-23T23:59:59.000Z

227

In situ noncombustive microwave processing of oil shale. Final report  

SciTech Connect

A unified analytical examination of the products of microwave oil shale has been completed. A sample of subituminous Colorado coal was also included. Analysis systems have been planned, constructed and placed into operation so as to provide a definitive profile of the composition of gases, oil, and water released by the microwave heated oil shale and coal samples. In a previous NSF study, it was reported that microwave retorted oil shale produced large quantities of high BTU content gas. In the data presented in this report, using a modular microcoulometric analysis system, a definitive profile of the composition of the gases, oil, and water, released by the microwave retorted oil shale and coal show that the previous results are confirmed.

Wall, E.T.

1979-08-31T23:59:59.000Z

228

Overland Precipitation Estimation from TRMM Passive Microwave Observations  

Science Conference Proceedings (OSTI)

Procedures for passive microwave precipitation estimation over land are investigated based on a large database of Tropical Rainfall Measuring Mission (TRMM) observations. The procedures include components for rain area delineation, convective/...

Mircea Grecu; Emmanouil N. Anagnostou

2001-08-01T23:59:59.000Z

229

Degradation of Radar Reflectivity by Cloud Attenuation at Microwave Frequency  

Science Conference Proceedings (OSTI)

The main object of this paper is to emphasize that cloudsthe nonprecipitating component of condensed atmospheric watercan produce a strong attenuation at operational microwave frequencies, although they present a low reflectivity preventing ...

Olivier Pujol; Jean-Franois Georgis; Laurent Fral; Henri Sauvageot

2007-04-01T23:59:59.000Z

230

Microwave Dielectric Heating of Drops in Microfluidic Devices  

E-Print Network (OSTI)

We present a technique to locally and rapidly heat water drops in microfluidic devices with microwave dielectric heating. Water absorbs microwave power more efficiently than polymers, glass, and oils due to its permanent molecular dipole moment that has a large dielectric loss at GHz frequencies. The relevant heat capacity of the system is a single thermally isolated picoliter drop of water and this enables very fast thermal cycling. We demonstrate microwave dielectric heating in a microfluidic device that integrates a flow-focusing drop maker, drop splitters, and metal electrodes to locally deliver microwave power from an inexpensive, commercially available 3.0 GHz source and amplifier. The temperature of the drops is measured by observing the temperature dependent fluorescence intensity of cadmium selenide nanocrystals suspended in the water drops. We demonstrate characteristic heating times as short as 15 ms to steady-state temperatures as large as 30 degrees C above the base temperature of the microfluidi...

Issadore, David; Brown, Keith A; Sandberg, Lori; Weitz, David; Westervelt, Robert M

2009-01-01T23:59:59.000Z

231

A plasma source for system for microwave plasma experiments (SYMPLE)  

Science Conference Proceedings (OSTI)

A system "SYMPLE" is being developed at our laboratory to investigate the interaction of high power microwave and plasma. A brief account on the development of a plasma source that satisfies the prerequisites required for SYMPLE is discussed.

V. P. Anitha; Renu Bahl; Priyavandna J. Rathod; Jayesh Raval; Y. C. Saxena

2011-02-01T23:59:59.000Z

232

A Dual-Frequency Microwave Technique for Measuring Rainwater Content  

Science Conference Proceedings (OSTI)

While there are many microwave techniques for estimating the rainfall rate, there are presently few if any for accurately determining the rainwater content (W). This study shows that the dual-frequency (38, 25 GHZ) differential attenuation (A38?...

A. R. Jameson

1992-02-01T23:59:59.000Z

233

Integrating giant microwave absorption with magnetic refrigeration in one  

E-Print Network (OSTI)

Integrating giant microwave absorption with magnetic refrigeration in one multifunctional with magnetic refrigeration in one multifunctional material. This integration not only advances our EMI problem, it is becoming very urgent to design and fabricate the electromagnetic compatibility (EMC

Wang, Wei Hua

234

On the forward scattering of microwave breast imaging  

Science Conference Proceedings (OSTI)

Microwave imaging for breast cancer detection has been of significant interest for the last two decades. Recent studies focus on solving the imaging problem using an inverse scattering approach. Efforts have mainly been focused on the development of ...

Hoi-Shun Lui; Andreas Fhager; Mikael Persson

2012-01-01T23:59:59.000Z

235

Tomographic Reconstruction of Rainfall Fields through Microwave Attenuation Measurements  

Science Conference Proceedings (OSTI)

A new method is presented for estimating the space-time rainfall intensity distribution at ground level over a limited area. This is based on a tomographic technique that exploits the relationship between microwave attenuation and rainfall ...

D. Giuli; A. Toccafondi; G. Biffi Gentili; A. Freni

1991-09-01T23:59:59.000Z

236

Development of a Microwave Clothes Dryer: Interim Report I  

Science Conference Proceedings (OSTI)

The development of a microwave clothes dryer has the potential to bring significant consumer benefits to this appliance. Efficient, short drying cycles are possible for both normal and delicate fabrics. The first year of development is described here.

1993-07-24T23:59:59.000Z

237

Retrieval of Ice Cloud Parameters Using a Microwave Imaging Radiometer  

Science Conference Proceedings (OSTI)

Based on the radiative transfer theory, the microwave radiance emanating from ice clouds at arbitrary viewing angles is expressed as an analytic function of the cloud ice water path (IWP), the particle effective diameter (De), and the particle ...

Fuzhong Weng; Norman C. Grody

2000-04-01T23:59:59.000Z

238

A Bayesian Approach to Microwave Precipitation Profile Retrieval  

Science Conference Proceedings (OSTI)

A multichannel passive microwave precipitation retrieval algorithm is developed. Bayes theorem is used to combine statistical information from numerical cloud models with forward radiative transfer modeling. Amultivariate lognormal prior ...

K. Franklin Evans; Joseph Turk; Takmeng Wong; Graeme L. Stephens

1995-01-01T23:59:59.000Z

239

Synthesis of Titanium Dioxide by Microwave Solid State Method and ...  

Science Conference Proceedings (OSTI)

In this work, titanium dioxide was synthetized by microwave solid-state ... Properties of Low-Carbon High-strength and Low-yield Ratio Bainitic Steels ... New Methodology of Enhancing Etching Factor of Copper Pattern for Advanced Packages.

240

Hydrometeor Retrieval Accuracy Using Microwave Window and Sounding Channel Observations  

Science Conference Proceedings (OSTI)

The retrieval errors of cloud and precipitation hydrometeor contents from spaceborne observations are estimated at microwave frequencies in atmospheric windows between 18 and 150 GHz and in oxygen absorption complexes near 5060 and 118 GHz. The ...

Peter Bauer; Emmanuel Moreau; Sabatino Di Michele

2005-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "dayton hilltop microwave" 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

Surface wave multipath signals in near-field microwave imaging  

Science Conference Proceedings (OSTI)

Microwave imaging techniques are prone to signal corruption from unwanted multipath signals. Near-field systems are especially vulnerable because signals can scatter and reflect from structural objects within or on the boundary of the imaging zone. These ...

Paul M. Meaney; Fridon Shubitidze; Margaret W. Fanning; Maciej Kmiec; Neil R. Epstein; Keith D. Paulsen

2012-01-01T23:59:59.000Z

242

Using the Special Sensor Microwave Imager to Monitor Surface Wetness  

Science Conference Proceedings (OSTI)

The frequencies flown on the Special Sensor Microwave Imager (SSM/I) are sensitive to liquid water near the earth's surface. These frequencies are primarily atmospheric window channels, which receive the majority of their radiation from the ...

Alan Basist; Claude Williams Jr.; Thomas F. Ross; Matthew J. Menne; Norman Grody; Ralph Ferraro; Samuel Shen; Alfred T. C. Chang

2001-06-01T23:59:59.000Z

243

Constraining Microwave Brightness Temperatures by Radar Brightband Observations  

Science Conference Proceedings (OSTI)

Multichannel microwave sensors make it possible to construct physically based rainfall retrieval algorithms. In these schemes, errors arising from the inaccuracy of the physical modeling of the cloud system under observation have to be accounted ...

A. Battaglia; C. Kummerow; Dong-Bin Shin; C. Williams

2003-06-01T23:59:59.000Z

244

Estimating the Uncertainty in Passive-Microwave Rain Retrievals  

Science Conference Proceedings (OSTI)

Current passive-microwave rain-retrieval methods are largely based on databases built offline using cloud models. Since the vertical distribution of hydrometeors within the cloud has a large impact on upwelling brightness temperatures, a forward ...

Dorothe Coppens; Ziad S. Haddad; Eastwood Im

2000-12-01T23:59:59.000Z

245

Ground-Based Passive Microwave Profiling during Dynamic Weather Conditions  

Science Conference Proceedings (OSTI)

Short-period (15 min) temperature and humidity soundings up to 10-km height are retrieved from ground-based 12-channel microwave radiometer profiler (MWRP) observations. In contrast to radiosondes, the radiometric retrievals provide very high ...

K. R. Knupp; T. Coleman; D. Phillips; R. Ware; D. Cimini; F. Vandenberghe; J. Vivekanandan; E. Westwater

2009-06-01T23:59:59.000Z

246

Fuel gas production by microwave plasma in liquid  

Science Conference Proceedings (OSTI)

We propose to apply plasma in liquid to replace gas-phase plasma because we expect much higher reaction rates for the chemical deposition of plasma in liquid than for chemical vapor deposition. A reactor for producing microwave plasma in a liquid could produce plasma in hydrocarbon liquids and waste oils. Generated gases consist of up to 81% hydrogen by volume. We confirmed that fuel gases such as methane and ethylene can be produced by microwave plasma in liquid.

Nomura, Shinfuku; Toyota, Hiromichi; Tawara, Michinaga; Yamashita, Hiroshi; Matsumoto, Kenya [Graduate School of Science and Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime 790-8577 (Japan); Shikoku Industry and Technology Promotion Center, 2-5 Marunouchi, Takamatsu, Kagawa 760-0033 (Japan)

2006-06-05T23:59:59.000Z

247

Effects of localized microwave exposure on the dog thyroid  

SciTech Connect

The effects of localized microwave (2.45 GHz, CW) exposure of the dog thyroid gland were investigated. A dielectrically loaded waveguide applicator was designed and fabricated which efficiencly couples microwave energy to a small (2.54 cm x 5.08 cm) area of biological tissue. The function of the thyroid gland was assessed by the measurement of total plasma thyroxine (T4) using a radioimmunoassay.

Magin, R.L.

1976-01-01T23:59:59.000Z

248

Uniform bulk Material Processing using Multimode Microwave Radiation  

DOE Patents (OSTI)

An apparatus for generating uniform heating in material contained in a cylindrical vessel is described. TE{sub 10}-mode microwave radiation is coupled into a cylindrical microwave transition such that microwave radiation having TE{sub 11}-, TE{sub 01}- and TM{sub 01}-cylindrical modes is excited therein. By adjusting the intensities of these modes, substantially uniform heating of materials contained in a cylindrical drum which is coupled to the microwave transition through a rotatable choke can be achieved. The use of a poor microwave absorbing insulating cylindrical insert, such as aluminum oxide, for separating the material in the container from the container walls and for providing a volume through which air is circulated is expected to maintain the container walls at room temperature. The use of layer of highly microwave absorbing material, such as SiC, inside of the insulating insert and facing the material to be heated is calculated to improve the heating pattern of the present apparatus.

Varma, Ravi; Vaughan, Worth E.

1999-06-18T23:59:59.000Z

249

Development of A Microwave Assisted Particulate Filter Regeneration System  

DOE Green Energy (OSTI)

The need for active regeneration of diesel particulate filters and the advantages of microwave assisted regeneration are discussed. The current study has multiple objectives, which include developing a microwave assisted particulate filter regeneration system for future generation light-duty diesel applications, including PNGV type applications. A variable power 2.0 kW microwave system and a tuned waveguide were employed. Cavity geometry is being optimized with the aid of computational modeling and temperature measurements during microwave heating. A wall-flow ceramic-fiber filter with superior thermal shock resistance, high filtration efficiency, and high soot capacity was used. The microwave assisted particulate filter regeneration system has operated for more than 100 hours in an engine test-cell with a 5.9-liter diesel engine with automated split exhaust flow and by-pass flow capabilities. Filter regeneration was demonstrated using soot loads up to 10 g/liter and engine exhaust at idling flow rates as the oxygen source. A parametric study to determine the optimal combination of soot loading, oxidant flow rate, microwave power and heating time is underway. Preliminary experimental results are reported.

Popuri, Sriram

2001-08-05T23:59:59.000Z

250

Uniform bulk material processing using multimode microwave radiation  

DOE Patents (OSTI)

An apparatus for generating uniform heating in material contained in a cylindrical vessel is described. TE.sub.10 -mode microwave radiation is coupled into a cylindrical microwave transition such that microwave radiation having TE.sub.11 -, TE.sub.01 - and TM.sub.01 -cylindrical modes is excited therein. By adjusting the intensities of these modes, substantially uniform heating of materials contained in a cylindrical drum which is coupled to the microwave transition through a rotatable choke can be achieved. The use of a poor microwave absorbing insulating cylindrical insert, such as aluminum oxide, for separating the material in the container from the container walls and for providing a volume through which air is circulated is expected to maintain the container walls at room temperature. The use of layer of highly microwave absorbing material, such as SiC, inside of the insulating insert and facing the material to be heated is calculated to improve the heating pattern of the present apparatus.

Varma, Ravi (Los Alamos, NM); Vaughn, Worth E. (Madison, WI)

2000-01-01T23:59:59.000Z

251

Method and device for microwave sintering large ceramic articles  

DOE Patents (OSTI)

A microwave sintering system and method are provided for extremely uniform sintering of large and/or irregular shaped ceramic articles at microwave frequencies of at least 28 GHz in the hundreds of kilowatts power range in an untuned cavity. A 28 GHz, 200 kw gyrotron with variable power output is used as the microwave source connected to an untuned microwave cavity formed of an electrically conductive housing through an overmoded waveguide arrangement which acts in conjunction with a mode promoter within the cavity to achieve unexpected field uniformity. The part to be sintered is placed in the cavity and supported on a removable high temperature table in a central location within the cavity. The part is surrounded by a microwave transparent bulk insulating material to reduce thermal heat loss at the part surfaces and maintain more uniform temperature. The cavity may be operated at a high vacuum to aid in preventing arcing. The system allows controlled increased heating rates of greater than 200.degree. C./min to provide rapid heating of a ceramic part to a selected sintering temperature where it is maintained by regulating the microwave power applied to the part. As a result of rapid heating, the extent of non-isothermal processes such as segregation of impurities to the grain boundaries are minimized and exaggerated grain growth is reduced, thereby strengthening the mechanical properties of the ceramic part being sintered.

Kimrey, Jr., Harold D. (Knoxville, TN)

1990-01-01T23:59:59.000Z

252

A device for microwave sintering large ceramic articles  

DOE Patents (OSTI)

A microwave sintering system is provided for uniform sintering of large and/or irregular shapes ceramic articles at microwave frequencies of at least 28 GHz in the hundreds of kilowatts power range in an untuned cavity. A 28 GHz, 200 kw gyrotron with variable power output is used as the microwave source connected to an untuned microwave cavity formed of an electrically conductive housing. The part to be sintered is placed in the cavity and supported on a removable high temperature table in a central location within the cavity. The part is surrounded by a microwave transparent bulk insulating material to reduce thermal heat loss at the part surfaces and maintain more uniform temperature. The cavity may be operated at a high vacuum to aid in preventing arcing. The system allows controlled increased heating rates of greater than 200/degree/C/min to provide rapid heating of a ceramic part to a selected sintering temperature where it is maintained by regulating the microwave power applied to the part. As a result of rapid heating, the extent on non-isothermal processes such as segregation of impurities to the grain boundaries are minimized and exaggerated grain growth is reduced, thereby strengthening the mechanical properties of the ceramic part being sintered. 1 fig.

Kimrey, H.D. Jr.

1987-07-24T23:59:59.000Z

253

Temporal Variations of Land Surface Microwave Emissivities over the Atmospheric Radiation Measurement Program Southern Great Plains Site  

Science Conference Proceedings (OSTI)

Land surface microwave emissivities are important geophysical parameters for atmospheric, hydrological, and biospheric studies. This study estimates land surface microwave emissivity using an atmospheric microwave radiative transfer model and a ...

Bing Lin; Patrick Minnis

2000-07-01T23:59:59.000Z

254

The Impact of Spatial Resolution Enhancement of SSM/I Microwave Brightness Temperatures on Rainfall Retrieval Algorithms  

Science Conference Proceedings (OSTI)

The impact of spatial resolution enhancement on estimates of tropical typhoon rainfall based on SSM/1 (Special Sensor Microwave/Imager) measurements is evaluated with six different microwave precipitation retrieval algorithms. Passive microwave ...

Michael R. Farrar; Eric A. Smith; Xuwu Xiang

1994-03-01T23:59:59.000Z

255

Generating Single Microwave Photons in a Circuit  

E-Print Network (OSTI)

Electromagnetic signals in circuits consist of discrete photons, though conventional voltage sources can only generate classical fields with a coherent superposition of many different photon numbers. While these classical signals can control and measure bits in a quantum computer (qubits), single photons can carry quantum information, enabling non-local quantum interactions, an important resource for scalable quantum computing. Here, we demonstrate an on-chip single photon source in a circuit quantum electrodynamics (QED) architecture, with a microwave transmission line cavity that collects the spontaneous emission of a single superconducting qubit with high efficiency. The photon source is triggered by a qubit rotation, as a photon is generated only when the qubit is excited. Tomography of both qubit and fluorescence photon shows that arbitrary qubit states can be mapped onto the photon state, demonstrating an ability to convert a stationary qubit into a flying qubit. Both the average power and voltage of the photon source are characterized to verify performance of the system. This single photon source is an important addition to a rapidly growing toolbox for quantum optics on a chip.

A. A. Houck; D. I. Schuster; J. M. Gambetta; J. A. Schreier; B. R. Johnson; J. M. Chow; J. Majer; L. Frunzio; M. H. Devoret; S. M. Girvin; R. J. Schoelkopf

2007-02-27T23:59:59.000Z

256

Central symmetry and antisymmetry of the microwave background inhomogeneities on Wilkinson Microwave Anisotropy Probe maps  

E-Print Network (OSTI)

We performed a visual and numeric analysis of the deviation of the microwave background temperature on WMAP maps. We proved that the microwave background inhomogeneities possess the property of the central symmetry resulting from the two kinds of central symmetry of the opposite signs. After the computer modeling we have established the relation between the coefficient of the central symmetry and the values of the symmetrical and antisymmetrical components of the deviation of the temperature. The obtained distribution of the symmetry coefficient on the map of the celestial sphere in Mollweide projection testifies on a contribution of both kinds of central symmetry which is approximately equal on the average in absolute magnitude but opposite by sign and where one kind of the central symmetry prevails on some sections of the celestial sphere and another kind - on the others. The average resulting value of the symmetry coefficient on the sections with angular measures less than 15-200 varies within the range from -50% to +50% with some prevalence of the antisymmetry - the average coefficient of the central symmetry for the whole celestial sphere is -4 +/- 1%. (antisymmetry 4%). Small scale structure of the distribution indicates that it is the result of the combined action of the mechanisms of the central symmetry and central antisymmetry, close to 100%.

Iurii Kudriavtcev; Dmitry A. Semenov

2010-08-24T23:59:59.000Z

257

Advanced Rain/No-Rain Classification Methods for Microwave Radiometer Observations over Land  

Science Conference Proceedings (OSTI)

Seto et al. developed rain/no-rain classification (RNC) methods over land for the Tropical Rainfall Measuring Mission (TRMM) Microwave Imager (TMI). In this study, the methods are modified for application to other microwave radiometers. The ...

Shinta Seto; Takuji Kubota; Nobuhiro Takahashi; Toshio Iguchi; Taikan Oki

2008-11-01T23:59:59.000Z

258

Quantitative Measurements of Path-Integrated Rain Rate by an Airborne Microwave Radiometer over the Ocean  

Science Conference Proceedings (OSTI)

Data on the airborne microwave radiometer, which is one of the sensors of the airborne microwave rain-scatterometer/radiometer (AMRS) system, are analyzed to infer path-integrated rain rate measured from topside. The equation of radiative ...

Masaharu Fujita; Ken'ichi Okamoto; Harunobu Masuko; Takeyuki Ojima; Nobuyoshi Fugono

1985-09-01T23:59:59.000Z

259

Simulation of Microwave Brightness Temperatures of an Evolving Hailstorm at SSM/I Frequencies  

Science Conference Proceedings (OSTI)

A simulation of the appearance of an intense hailstorm in the passive microwave spectrum is conducted in order to characterize the vertical sources of radiation that contribute to the top-of-atmosphere microwave brightness temperatures (TB) which ...

Alberto Mugnai; Harry J. Cooper; Eric A. Smith; Gregory J. Tripoli

1990-01-01T23:59:59.000Z

260

Observational Analyses of North Atlantic Tropical Cyclones from NOAA Polar-Orbiting Satellite Microwave Data  

Science Conference Proceedings (OSTI)

Passive microwave observations from the current NOAA series of polar-orbiting satellites of a large sample of North Atlantic tropical cyclones are qualitatively and quantitatively analyzed. Microwave observations can penetrate the cloud cover ...

Christopher S. Velden

1989-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "dayton hilltop microwave" 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

False-Color Display of Special Sensor Microwave/Imager (SSM/I) Data  

Science Conference Proceedings (OSTI)

Displays of multi-frequency passive microwave data from the Special Sensor Microwave/Imager (SSM/I) flying on the Defense Meteorological Satellite Program (DMSP) spacecraft are presented. Observed brightness temperatures at 85.5 GHz (vertical and ...

Andrew J. Negri; Robert F. Adler; Christian D. Kummerow

1989-02-01T23:59:59.000Z

262

Passive Microwave Structure of Severe Tornadic Storms on 16 November 1987  

Science Conference Proceedings (OSTI)

Passive microwave observations using the Special Sensor Microwave/Imager are presented for severe tornadic storms in the lower midwestern United States on 16 November 1987. These measurements are compared with Geostationary Operational ...

Gerald M. Heymsfield; Richard Fulton

1994-11-01T23:59:59.000Z

263

A Method for Combined Passive?Active Microwave Retrievals of Cloud and Precipitation Profiles  

Science Conference Proceedings (OSTI)

Three-dimensional tropical squall-line simulations from the Goddard cumulus ensemble (GCE) model are used as input to radiative computations of upwelling microwave brightness temperatures and radar reflectivities at selected microwave sensor ...

William S. Olson; Christian D. Kummerow; Gerald M. Heymsfield; Louis Giglio

1996-10-01T23:59:59.000Z

264

Passive Microwave Observations of the Stratiform Regions of Two Tropical Oceanic Mesoscale Convective Systems  

Science Conference Proceedings (OSTI)

High-resolution passive microwave observations within the stratiform regions of two different tropical oceanic mesoscale convective systems are investigated in detail. The observations were obtained from the Advanced Microwave Precipitation ...

Gary McGaughey; Edward J. Zipser

1996-11-01T23:59:59.000Z

265

Combining Satellite Microwave Radiometer and Radar Observations to Estimate Atmospheric Heating Profiles  

Science Conference Proceedings (OSTI)

In this study, satellite passive microwave sensor observations from the Tropical Rainfall Measuring Mission (TRMM) Microwave Imager (TMI) are utilized to make estimates of latent + eddy sensible heating rates (Q1 ? QR) where Q1 is the apparent ...

Mircea Grecu; William S. Olson; Chung-Lin Shie; Tristan S. LEcuyer; Wei-Kuo Tao

2009-12-01T23:59:59.000Z

266

Improved Passive Microwave Retrievals of Rain Rate Over Land and Ocean. 2. Validation and Intercomparison  

Science Conference Proceedings (OSTI)

A new passive microwave rainfall retrieval algorithm for the Tropical Rainfall Measuring Mission (TRMM) Microwave Imager (TMI) has been developed that relies on a prior database derived from matchups between TMI brightness temperatures and ...

Grant W. Petty; Ke Li

267

On-orbit radiometric validation and field-of-view calibration of spaceborne microwave sounding instruments  

E-Print Network (OSTI)

Two calibration/validation efforts planned for current and future spaceborne microwave sounding instruments will be presented. First, the NPOESS Aircraft Sounder Testbed-Microwave (NAST-M) airborne sensor is used to directly ...

Blackwell, William J.

268

Aircraft Multifrequency Passive Microwave Observations of Light Precipitation over the Ocean  

Science Conference Proceedings (OSTI)

Aircraft passive microwave observations at 18, 37, 92, and 183 GHz of light oceanic precipitation are studied in conjunction with visible and infrared observations and ground-based radar data. Microwave signatures for clear, cloudy, and ...

Robert F. Adler; Ida M. Hakkarinen

1991-04-01T23:59:59.000Z

269

Relationships between Evaporative Fraction and Remotely Sensed Vegetation Index and Microwave Brightness Temperature for Semiarid Rangelands  

Science Conference Proceedings (OSTI)

Measurements of the microwave brightness temperature (TB) with the Pushbroom Microwave Radiometer (PBMR) over the Walnut Gulch Experimental Watershed were made on selected days during the MONSOON 90 field campaign. The PBMR is an L-band ...

W. P. Kustas; T. J. Schmugge; K. S. Humes; T. J. Jackson; R. Parry; M. A. Weltz; M. S. Moran

1993-12-01T23:59:59.000Z

270

Improved Passive Microwave Retrievals of Rain Rate over Land and Ocean. Part II: Validation and Intercomparison  

Science Conference Proceedings (OSTI)

A new passive microwave rainfall retrieval algorithm for the Tropical Rainfall Measuring Mission (TRMM) Microwave Imager (TMI) that relies on an a priori database derived from matchups between TMI brightness temperatures and precipitation radar (...

Grant W. Petty; Ke Li

2013-11-01T23:59:59.000Z

271

Microwave Radiative Transfer Studies Using Combined Multiparameter Radar and Radiometer Measurements during COHMEX  

Science Conference Proceedings (OSTI)

Theoretical calculations of the upwelling microwave radiances from clouds containing layers of rain, ice, and a melting region were performed at frequencies of 18, 37, and 92 GHz. These frequencies coincide with high-resolution microwave ...

J. Vivekanandan; J. Turk; G. L. Stephens; V. N. Bringi

1990-07-01T23:59:59.000Z

272

Correlations between Nimbus-7 Scanning Multichannel Microwave Radiometer Data and an Antecedent Precipitation Index  

Science Conference Proceedings (OSTI)

Passive microwave brightness temperatures from the Nimbus-7 Scanning Multichannel Microwave Radiometer (SMMR) can be used to infer the soil moisture content over agricultural areas such as the southern Great Plains of the United States. A linear ...

Gregory D. Wilke; Marshall J. McFarland

1986-02-01T23:59:59.000Z

273

A New Shipborne Microwave Refractometer for Estimating the Evaporation Flux at the Sea Surface  

Science Conference Proceedings (OSTI)

After a brief description of humidity measurement and a short presentation of methods of microwave refractometry for evaporation flux, a new X-band refractometer system is presented. Based on a new design and a new material for the microwave ...

J.-Y. Delahaye; C. Guerin; J. P. Vinson; H. Dupuis; A. Weill; H. Branger; L. Eymard; J. Lavergnat; G. Lachaud

2001-03-01T23:59:59.000Z

274

Intercalibrating Microwave Satellite Observations for Monitoring Long-Term Variations in Upper- and Midtropospheric Water Vapor  

Science Conference Proceedings (OSTI)

This paper analyzes the growing archive of 183-GHz water vapor absorption band measurements from the Advanced Microwave Sounding Unit B (AMSU-B) and Microwave Humidity Sounder (MHS) on board polar-orbiting satellites and document adjustments ...

Eui-Seok Chung; Brian J. Soden; Viju O. John

2013-10-01T23:59:59.000Z

275

Reversible and efficient conversion between microwave and optical light  

E-Print Network (OSTI)

Converting low-frequency electrical signals into much higher frequency optical signals has enabled modern communications networks to leverage both the strengths of microfabricated electrical circuits and optical fiber transmission, allowing information networks to grow in size and complexity. A microwave-to-optical converter in a quantum information network could provide similar gains by linking quantum processors via low-loss optical fibers and enabling a large-scale quantum network. However, no current technology can convert low-frequency microwave signals into high-frequency optical signals while preserving their fragile quantum state. For this demanding application, a converter must provide a near-unitary transformation between different frequencies; that is, the ideal transformation is reversible, coherent, and lossless. Here we demonstrate a converter that reversibly, coherently, and efficiently links the microwave and optical portions of the electromagnetic spectrum. We use our converter to transfer classical signals between microwave and optical light with conversion efficiencies of ~10%, and achieve performance sufficient to transfer quantum states if the device were further precooled from its current 4 kelvin operating temperature to below 40 millikelvin. The converter uses a mechanically compliant membrane to interface optical light with superconducting microwave circuitry, and this unique combination of technologies may provide a way to link distant nodes of a quantum information network.

R. W. Andrews; R. W. Peterson; T. P. Purdy; K. Cicak; R. W. Simmonds; C. A. Regal; K. W. Lehnert

2013-10-19T23:59:59.000Z

276

Microwave Power Beaming Infrastructure for Manned Lightcraft Operations: Part 2  

SciTech Connect

In the past {approx}7 years, microwave gyrotron technology has rapidly evolved to a critical threshold wherein ultra-energetic space launch missions based on beamed energy propulsion (BEP) now appear eminently feasible. Over the next 20 years, hundred megawatt-class microwave power-beaming stations could be prototyped on high deserts and 3- to 4 km mountain peaks before migrating into low Earth orbit, along with their passive microwave relay satellites. Described herein is a 20 GW rechargeable nuclear power satellite and microwave power-beaming infrastructure designed for manned space launch operations in the year 2025. The technological readiness of 2500 GJ superconducting magnetic energy storage 'batteries', 433-m ultralight space structures, 100 MW liquid droplet radiators, 1-6+ MW gyrotron sources, and mega-scale arrays (e.g., 3000 phase-locked units) is addressed. Microwave BEP is 'breakthrough' technology with the very real potential to radically reduce space access costs by factors of 100 to 1000 in the forseeable future.

Myrabo, Leik N. [Lightcraft Technologies, Inc., Bennington, VT (United States)

2008-04-28T23:59:59.000Z

277

Microwave Enhanced Rapid Solid State Synthesis of LiFePO4  

Science Conference Proceedings (OSTI)

New Saccharification Process of Cellulosic Biomass by Microwave Irradiation Novel Lamination Method for Large Armor Panels Raman Spectroscopy for...

278

Microwave-Induced Chemical Synthesis Initiative Strategic Research 1994-1997  

Science Conference Proceedings (OSTI)

The Microwave-Induced Chemical Synthesis Initiative focuses on the questions and opportunities associated with the effect of microwaves on chemical reactions, particularly catalytic reactions. This compendium of report and conclusions from the initiative contains a variety of new findings, including the results of seven research programs and two microwave conferences.

1998-06-29T23:59:59.000Z

279

Microwave tomography for breast cancer detection on Cell broadband engine processors  

Science Conference Proceedings (OSTI)

Microwave tomography (MT) is a safe screening modality that can be used for breast cancer detection. The technique uses the dielectric property contrasts between different breast tissues at microwave frequencies to determine the existence of abnormalities. ... Keywords: Breast cancer detection, Cell BE processor, Finite-difference time-domain (FDTD), Microwave tomography (MT)

Meilian Xu; Parimala Thulasiraman; Sima Noghanian

2012-09-01T23:59:59.000Z

280

Apparatus with moderating material for microwave heat treatment of manufactured components  

DOE Patents (OSTI)

An apparatus for heat treating manufactured components using microwave energy and microwave susceptor material. Heat treating medium such as eutectic salts may be employed. A fluidized bed introduces process gases which may include carburizing or nitriding gases The process may be operated in a batch mode or continuous process mode. A microwave heating probe may be used to restart a frozen eutectic salt bath.

Ripley, Edward B. (Knoxville, TN)

2011-05-10T23:59:59.000Z

Note: This page contains sample records for the topic "dayton hilltop microwave" 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

Microwave methods enable energy savings in restoration of highway pavements  

Science Conference Proceedings (OSTI)

Hot in place recycling of asphalt pavement by a method which utilizes microwave energy in combination with hot engine exhaust gases has been demonstrated to be technically and economically feasible. The process saves both energy and materials compared with conventional hot-mix recycling methods involving removal of old paving and reprocessing at hot-mix plants. Applications for microwave pavement heating include repair of cracks, joints between lanes and shoulders, wheel tracks, bridge decks, strip patching, and eventually in-place of full lanes of asphalt highways. The ability of microwave energy to heat pavements rapidly and fairly uniformly to depths of up to 6 inches make this new method uniquely suitable for repair and restoration of bridges, roads and highways, and also for the construction of new paved roads in places where hot-mix plants are not available.

Jeppson, M.R.; Smith, F.J.

1983-08-01T23:59:59.000Z

282

Microwave methods enable energy savings in restoration of highway pavements  

Science Conference Proceedings (OSTI)

Hot in-place recycling of asphalt pavement by a method which utilizes microwave energy in combination with hot-engine exhaust gases has been demonstrated to be technically and economically feasible. The process saves both energy and materials compared with conventional hot-mix recycling methods involving removal of old paving and reprocessing at hot-mix plants. Applications for microwave pavement heating include repair of cracks, joints between lanes and shoulders, wheel tracks, bridge decks, strip patching, and eventually in-place recycling of full lanes of asphalt highways. The ability of microwave energy to heat pavements rapidly and fairly uniformly to depths of up to 6 inches make this new method uniquely suitable for repair and restoration of bridges, roads and highways, and also for the construction of new paved roads in places where hot-mix plants are not available.

Jeppson, M.R.; Smith, F.J.

1983-01-01T23:59:59.000Z

283

One piece microwave container screens for electrodeless lamps  

DOE Patents (OSTI)

A microwave powered electrodeless lamp includes an improved screen unit having mesh and solid sections with an internal reflector to reflect light into a light-transmitting chamber defined in the lamp microwave cavity by the reflector and the mesh section. A discharge envelope of a bulb is disposed in the light-transmitting chamber. Light emitted from the envelope is prevented by the reflector from entering the cavity portion bounded by the solid section of the screen. Replacing mesh material by solid metal material as part of the screen unit significantly reduces leakage of microwave energy from the lamp. The solid section has multiple compliant fingers defined therein for engaging the periphery of a flange on the waveguide unit so that a hose clamp can easily secure the screen to the assembly. Screen units of this type having different mesh section configurations can be interchanged in the lamp assembly to produce different respective illumination patterns.

Turner, Brian (Myersville, MD); Ury, Michael (Bethesda, MD)

1998-01-01T23:59:59.000Z

284

Microwave whispering gallery resonator for efficient optical up-conversion  

E-Print Network (OSTI)

Conversion of microwave radiation into the optical range has been predicted to reach unity quantum efficiency in whispering gallery resonators made from an optically nonlinear crystal and supporting microwave and optical modes simultaneously. In this work we theoretically explore and experimentally demonstrate a resonator geometry that can provide the required phase matching for such a conversion at any desired frequency in the sub-THz range. We show that such a ring-shaped resonator not only allows for the phase matching, but also maximizes the overlap of the interacting fields. As a result, unity-efficient conversion is expected in a resonator with feasible parameters.

D. V. Strekalov; H. G. L. Schwefel; A. A. Savchenkov; A. B. Matsko; L. J. Wang; N. Yu

2009-05-18T23:59:59.000Z

285

Ultra high vacuum broad band high power microwave window  

DOE Patents (OSTI)

An improved high vacuum microwave window has been developed that utilizes high density polyethylene coated on two sides with SiOx, SiNx, or a combination of the two. The resultant low dielectric and low loss tangent window creates a low outgassing, low permeation seal through which broad band, high power microwave energy may be passed. No matching device is necessary and the sealing technique is simple. The features of the window are broad band transmission, ultra-high vacuum compatibility with a simple sealing technique, low voltage standing wave ratio, high power transmission and low cost.

Nguyen-Tuong, Viet (Seaford, VA); Dylla, III, Henry Frederick (Yorktown, VA)

1997-01-01T23:59:59.000Z

286

Ultra high vacuum broad band high power microwave window  

DOE Patents (OSTI)

An improved high vacuum microwave window has been developed that utilizes high density polyethylene coated on two sides with SiOx, SiNx, or a combination of the two. The resultant low dielectric and low loss tangent window creates a low outgassing, low permeation seal through which broad band, high power microwave energy may be passed. No matching device is necessary and the sealing technique is simple. The features of the window are broad band transmission, ultra-high vacuum compatibility with a simple sealing technique, low voltage standing wave ratio, high power transmission and low cost. 5 figs.

Nguyen-Tuong, V.; Dylla, H.F. III

1997-11-04T23:59:59.000Z

287

Apparatus for mounting a diode in a microwave circuit  

DOE Patents (OSTI)

Apparatus for mounting a diode in a microwave circuit for making electrical contact between the circuit and ground and for dissipation of heat between the diode and a heat sink. The diode, supported on a thermally and electrically conductive member, is resiliently pressed in electrical contact with the microwave circuit. A tapered collar on the member is elastically deformably wedged into a tapered aperture formed in a heat sink. The wedged collar tightens firmly around the member establishing good thermal and electrical conduction from the diode to the heat sink and ground. Disassembly is facilitated because of the elastically deformed collar.

Liu, Shing-gong (Princeton, NJ)

1976-07-27T23:59:59.000Z

288

Microwave heating effect on the dog thyroid gland  

SciTech Connect

Dog thyroid glands were exposed in vivo to 2450 MHz, CW microwave fields for 2 h using a dielectrically loaded waveguide applicator. Specific absorption rates of 58, 131, and 190 W/kg in the center of the thyroid gland resulted in temperatures of 38 to 39/sup 0/C, 40 to 42/sup 0/C, and 44 to 46/sup 0/C, respectively. An increase in the heated gland's thyroid hormone, thyroxine (T4) and triiodothyronine (T3), release rate was observed. This result demonstrates that the dog thyroid gland can be directly stimulated by microwave heating.

Magin, R.L.; Lu, S.T.; Michaelson, S.M.

1977-11-01T23:59:59.000Z

289

Microwave Treatment as a Pesticide Alternative for Stored-Products  

SciTech Connect

This CRADA was a continuation of earlier work with Micro-Grain, Inc. to develop power, high frequency microwave treatment process to treat insect infested grain. ORNLs role was as a subcontractor to Micro-Grain's Phase II SBIR project funded by the US Department of Agriculture. The primary objective was to develop a commercial scale prototype unit capable of treating infested grain at flow rates approaching 1 kg/sec, which is required to be viable in the grain handling industry. A flow rate of {approx} 0.12 Kg/second was demonstrated at 20 kW microwave power level with 100% kill rate. The system is capable of 200 kW however waveguide arcing due to grain dust in the waveguide limited the power to 20 kW during the tests. Development tasks performed during the project included modification of an existing high-power microwave exposure facility to uniformly process large grain samples at high flow rates and improved instrumentation to detect grain flow and uniformity. Microwave processing tasks include a series of controlled exposure tests using infested grain samples provided and analyzed by the University of Oklahoma. Grain samples were infested with red flour beetles which proved the most difficult to kill in earlier tests. Most of the samples processed resulted in quite successful kill rates and a maximum grain temperature of 46 C. The facilities utilized at ORNL are located in the Fusion Energy building (9201-2 at Y-12) and include the 28 GHz 200 kW CW high power microwave facility and microwave test equipment associated with the FED Microwave Development Laboratory in 9201-2. An improved microwave exposure chamber and grain flow control and handling equipment were designed and build as a joint effort between Micro-Grain and ORNL. A number of insect infested grain tests were successfully performed although the higher power, higher flow rates were limited by arcing in the microwave waveguide and damage to the gyrotron output window. Test results and the overall performance of the applicator system are very favorable for continued development of the concept. Further tests were performed in a large high power 2.45 GHz microwave applicator in batches. These samples were also quite effectively treated which supports the concept that a lower cost, lower frequency microwave system might be more successful due to the improved economics and simpler operation and maintenance of the low frequency system. Follow-on work is still possible however the untimely death of Steve Halverson, founder of Micro-grain, has essentially brought the development work to a close for now. Micro-Grain is being run by relatives at a low level who are not actively pursuing further funding.

Bigelow, T.S.; Forrester, S.C.; Halverson, S.; Halverson, B.; Phillips, T.

2003-05-21T23:59:59.000Z

290

2172 IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 45, NO. 12, DECEMBER 1997 1997 IMS Technical Program  

E-Print Network (OSTI)

with the themes: Millimeter Waves over Fiber Systems, Microwave Applications of Silicon Carbide, Electromagnetic

Popovic, Zoya

291

Environmental assessment for the Satellite Power System (SPS) Concept Development and Evaluation Program (CDEP). [Microwave and non-microwave health and ecological assessment  

DOE Green Energy (OSTI)

In the satellite power system (SPS), satellites in geosynchronous earth orbit would collect solar energy in space, convert it to microwaves, and transmit the microwaves to receiving antennas (rectennas) on earth. At the rectennas, the microwave energy would be converted to electricity. This SPS environmental assessment considers the microwave and nonmicrowave effects on the terrestrial environment and human health, atmospheric effects, and effects on electromagnetic systems. No environmental problem has been identified that would preclude the continued study of SPS technology. To increase the certainty of the assessment, some research has been initiated and long-term research is being planned.

Valentino, A.R.

1980-08-01T23:59:59.000Z

292

AMI OBSERVATIONS OF THE ANOMALOUS MICROWAVE EMISSION IN THE PERSEUS MOLECULAR CLOUD  

SciTech Connect

We present observations of the known anomalous microwave emission region, G159.6-18.5, in the Perseus molecular cloud at 16 GHz performed with the Arcminute Microkelvin Imager Small Array. These are the highest angular resolution observations of G159.6-18.5 at microwave wavelengths. By combining these microwave data with infrared observations between 5.8 and 160 {mu}m from the Spitzer Space Telescope, we investigate the existence of a microwave-infrared correlation on angular scales of {approx}2'. We find that the overall correlation appears to increase toward shorter infrared wavelengths, which is consistent with the microwave emission being produced by electric dipole radiation from small, spinning dust grains. We also find that the microwave-infrared correlation peaks at 24 {mu}m (6.7{sigma}), suggesting that the microwave emission is originating from a population of stochastically heated small interstellar dust grains rather than polycyclic aromatic hydrocarbons.

Tibbs, C. T. [Spitzer Science Center, California Institute of Technology, Pasadena, CA 91125 (United States); Scaife, A. M. M. [School of Physics and Astronomy, University of Southampton, Highfield, Southampton SO17 1BJ (United Kingdom); Dickinson, C.; Davies, R. D.; Davis, R. J.; Watson, R. A. [Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, The University of Manchester, Manchester M13 9PL (United Kingdom); Paladini, R. [NASA Herschel Science Center, California Institute of Technology, Pasadena, CA 91125 (United States); Grainge, K. J. B., E-mail: ctibbs@ipac.caltech.edu [Astrophysics Group, Cavendish Laboratory, J J Thomson Avenue, Cambridge CB3 0HE (United Kingdom)

2013-05-10T23:59:59.000Z

293

Standard test method for determination of "microwave safe for reheating" for ceramicware  

E-Print Network (OSTI)

1.1 This test method determines the suitability of ceramicware for use in microwave re-heating applications. Microwave ovens are mainly used for reheating and defrosting frozen foods. Severe thermal conditions can occur while reheating foods. Typical reheating of foods requires one to five min. in the microwave at the highest power settings. Longer periods than five minutes are considered cooking. Cooking test methods and standards are not addressed in this test method. Most ceramicware is minimally absorbing of the microwave energy and will not heat up significantly. Unfortunately there are some products that absorb microwave energy to a greater extent and can become very hot in the microwave and pose a serious hazard. Additionally, the nature of microwave heating introduces radiation in a non-uniform manner producing temperature differentials in the food being cooked as well as the ceramic container holding it. The differential may become great enough to thermal shock the ware and create dangerous condition...

American Society for Testing and Materials. Philadelphia

2006-01-01T23:59:59.000Z

294

Microwave Radiometer 3 Channel (MWR3C) Handbook  

SciTech Connect

The microwave radiometer 3-channel (MWR3C) provides time-series measurements of brightness temperatures from three channels centered at 23.834, 30, and 89 GHz. These three channels are sensitive to the presence of liquid water and precipitable water vapor.

Cadeddu, MP

2012-05-04T23:59:59.000Z

295

SPS ionosphere/microwave beam interactions: Arecibo experimental studies  

DOE Green Energy (OSTI)

The purpose of this program is to determine the environmental impacts associated with the operation of the proposed SPS microwave power transmission system. It is expected that thermal effects will provide the dominant force driving the nonlinear ionosphere/microwave beam interactions. Collisional damping of radio waves, producing ohmic heating of the ionospheric plasma, depends inversely on the square of the radio wave frequency. Therefore, equivalent heating and equivalent thermal forces can be generated at lower radiated power densities by using lower radio wave frequencies. This principle is fundamental to a large part of the experimental program. An understanding of the physics of the specific interactions excited by the SPS microwave beam is also an important part of the assessment program. This program is designed to determine instability thresholds, the growth rates and spatial extent of the resultant ionospheric disturbances, and the frequency and power dependences of the interactions. How these interactions are affected by variations in the natural ionospheric conditions, how different instabilities occurring simultaneously may affect each other, and how distinct microwave beams might mutually interact are studied. Status of the program is described. (WHK)

Duncan, L.M.

1980-10-01T23:59:59.000Z

296

Microwave methods for paving. Final report, Phase II  

Science Conference Proceedings (OSTI)

The purpose of this report is to attempt to identify important highway pavement maintenance and rehabilitation needs and to propose microwave methods and equipment that could be profitably used for this work. As a starting point it is already perceived and accepted that the major emphasis in the US paving indu

Jeppson, M.E.

1984-12-07T23:59:59.000Z

297

Moisture Analysis from Radiosonde and Microwave Spectrometer Data  

Science Conference Proceedings (OSTI)

A method for analysis of the horizontal and vertical distributions of the moisture field utilizing satellite, upper air and surface data is proposed in this paper. A brief overview of the microwave sensors on board Nimbus 5 and 6 is also ...

Kenneth J. Haydu; T. N. Krishnamurti

1981-10-01T23:59:59.000Z

298

Quantum nondemolition detection of a propagating microwave photon  

E-Print Network (OSTI)

The ability to detect the presence of a single, travelling photon without destroying it has been a long standing project in optics and is fundamental for applications in quantum information and measurement. The realization of such a detector has been complicated by the fact that photon- photon interactions are very weak at optical frequencies. At microwave frequencies, very strong photon-photon interactions have been demonstrated. Here however, the single-photon detector has been elusive due to the low energy of the microwave photon. In this article, we present a realistic proposal for quantum nondemolition measurements of a single propagating microwave photon. The detector design is built on a of chain of artificial atoms connected through circulators which break time-reversal symmetry, making both signal and probe photons propagate in one direction only. Our analysis is based on the theory of cascaded quantum systems and quantum trajectories which takes the full dynamics of the atom-field interaction into account. We show that a signal-to-noise ratio above one can be realized with current state of the art microwave technology.

Sankar R. Sathyamoorthy; L. Tornberg; Anton F. Kockum; Ben Q. Baragiola; Joshua Combes; C. M. Wilson; Thomas M. Stace; G. Johansson

2013-08-09T23:59:59.000Z

299

Scanning multichannel microwave radiometer snow water equivalent assimilation  

E-Print Network (OSTI)

climatic driver through the surface albedo's role in energy and water budgets [e.g., Yeh et al., 1983Scanning multichannel microwave radiometer snow water equivalent assimilation Jiarui Dong,1 due to complicating effects, including distance to open water, presence of wet snow, and presence

Houser, Paul R.

300

Microwave Dielectric Heating of Drops in Microfluidic Devices  

E-Print Network (OSTI)

We present a technique to locally and rapidly heat water drops in microfluidic devices with microwave dielectric heating. Water absorbs microwave power more efficiently than polymers, glass, and oils due to its permanent molecular dipole moment that has a large dielectric loss at GHz frequencies. The relevant heat capacity of the system is a single thermally isolated picoliter drop of water and this enables very fast thermal cycling. We demonstrate microwave dielectric heating in a microfluidic device that integrates a flow-focusing drop maker, drop splitters, and metal electrodes to locally deliver microwave power from an inexpensive, commercially available 3.0 GHz source and amplifier. The temperature of the drops is measured by observing the temperature dependent fluorescence intensity of cadmium selenide nanocrystals suspended in the water drops. We demonstrate characteristic heating times as short as 15 ms to steady-state temperatures as large as 30 degrees C above the base temperature of the microfluidic device. Many common biological and chemical applications require rapid and local control of temperature, such as PCR amplification of DNA, and can benefit from this new technique.

David Issadore; Katherine J. Humphry; Keith A. Brown; Lori Sandberg; David Weitz; Robert M. Westervelt

2009-01-09T23:59:59.000Z

Note: This page contains sample records for the topic "dayton hilltop microwave" 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

Polymer Surface Modification Using Microwave-Oven-Generated Plasma  

E-Print Network (OSTI)

, diameter 160 mm) are from Fisher Scientific. Compressed oxygen and ethanol (100%) are from Air Products a Barnstead EASYpure UV unit. Plasma is generated with a 1100-W countertop microwave oven (Amana, ACM2160AB.Afterrinsing,thesamples are dried with compressed air and placed on a glass microscope slide. The slide is then positioned

Steinbock, Oliver

302

Severe Storm Observations Using the Microwave Sounding Unit  

Science Conference Proceedings (OSTI)

The microwave sounding unit (MSU) aboard the NOAA polar orbiting satellites contains four channels in the oxygen band, at 50.30, 53.74, 54.96 and 57.95 GHz, which receive thermal radiation originating primarily from four regions ranging from the ...

Norman C. Grody

1983-04-01T23:59:59.000Z

303

Microwave gaseous electrode development. Final report. [Plasma torch  

DOE Green Energy (OSTI)

A microwave plasma torch was developed and tested at bench scale using power inputs of up to 400 W at 2.45 GHz. The bench scale tests included: characterization of the plasma torch operating characteristics as gas composition, gas flow rate, and power input were varied; measuring the effects of magnetic fields on the plasma torch operation; measuring the effects on the plasma torch operation of an aerodynamic flow field past the exit of the torch (cold flow tests); and measurements were made to characterize the plasma gas temperature and electron temperature. Following these tests, the microwave plasma torch was installed in the anode wall of the RMC diagonal conducting wall MHD generator. Hot flow tests were conducted in the channel using unseeded combustion products. These were followed by MHD power generation tests using subsonic and supersonic flows seeded with up to 1.5 w/o potassium and magnetic fields up to 3.8 Tesla. For one series of tests the magnetic field was reversed so that the surface containing the microwave plasma torch operated as a cathode. Following the MHD generator tests, another concept using a microwave slot radiator to produce plasma in the MHD boundary layer was tested at the bench scale. Measurements were made of the parameters necessary to sustain a discharge with the slot radiator open, similar to the microwave plasma torch, with argon flowing through the slots; and with the slots closed with a castable ceramic, the argon flowing past the outside of the slot. The latter tests were extended to a slot configuration appropriate for use in a slagging channel which incorporated water cooling passages in the surface which would be in contact with the MHD channel working fluid. Results are presented and discussed. (WHK)

Jones, M.S. Jr.; Sathyanarayana, K.; Mallavarpu, R.; Thiagarajan, V.

1980-12-31T23:59:59.000Z

304

Microwave Radiometer Calibration on Decadal Time Scales Using On-Earth Brightness Temperature References: Application to the TOPEX Microwave Radiometer  

Science Conference Proceedings (OSTI)

A method is described to calibrate a satellite microwave radiometer operating near 1837 GHz on decadal time scales for the purposes of climate studies. The method uses stable on-earth brightness temperature references over the full dynamic range ...

Shannon Brown; Shailen Desai; Stephen Keihm; Wenwen Lu

2009-12-01T23:59:59.000Z

305

HARD X-RAY AND MICROWAVE EMISSIONS FROM SOLAR FLARES WITH HARD SPECTRAL INDICES  

SciTech Connect

We analyze 10 flare events that radiate intense hard X-ray (HXR) emission with significant photons over 300 keV to verify that the electrons that have a common origin of acceleration mechanism and energy power-law distribution with solar flares emit HXRs and microwaves. Most of these events have the following characteristics. HXRs emanate from the footpoints of flare loops, while microwaves emanate from the tops of flare loops. The time profiles of the microwave emission show delays of peak with respect to those of the corresponding HXR emission. The spectral indices of microwave emissions show gradual hardening in all events, while the spectral indices of the corresponding HXR emissions are roughly constant in most of the events, though rather rapid hardening is simultaneously observed in some for both indices during the onset time and the peak time. These characteristics suggest that the microwave emission emanates from the trapped electrons. Then, taking into account the role of the trapping of electrons for the microwave emission, we compare the observed microwave spectra with the model spectra calculated by a gyrosynchrotron code. As a result, we successfully reproduce the eight microwave spectra. From this result, we conclude that the electrons that have a common acceleration and a common energy distribution with solar flares emit both HXR and microwave emissions in the eight events, though microwave emission is contributed to by electrons with much higher energy than HXR emission.

Kawate, T. [Kwasan and Hida Observatory, Kitashirakawa-oiwakecho, Sakyo, Kyoto 606-8502 (Japan); Nishizuka, N. [Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Chuo-ku, Sagamihara, Kanagawa 229-8510 (Japan); Oi, A. [College of Science, Ibaraki University, Mito, Ibaraki 310-8512 (Japan); Ohyama, M. [Faculty of Education, Shiga University, 2-5-1 Hiratsu, Otsu, Shiga 1-1, Baba Hikone city, Siga 522-8522 (Japan); Nakajima, H., E-mail: kawate@kusastro.kyoto-u.ac.jp [Nobeyama Solar Radio Observatory, NAOJ, Nobeyama, Minamisaku, Nagano 384-1305 (Japan)

2012-03-10T23:59:59.000Z

306

Method for heat treating and sintering metal oxides with microwave radiation  

DOE Patents (OSTI)

A method for microwave sintering materials, primarily metal oxides, is described. Metal oxides do not normally absorb microwave radiation at temperatures ranging from about room temperature to several hundred degrees centrigrade are sintered with microwave radiation without the use of the heretofore required sintering aids. This sintering is achieved by enclosing a compact of the oxide material in a housing or capsule formed of a oxide which has microwave coupling properties at room temprature up to at least the microwave coupling temperature of the oxide material forming the compact. The heating of the housing effects the initial heating of the oxide material forming the compact by heat transference and then functions as a thermal insulator for the encased oxide material after the oxide material reaches a sufficient temperature to adequately absorb or couple with microwave radiation for heating thereof to sintering temperature.

Holcombe, Cressie E. (Farragut, TN); Dykes, Norman L. (Oak Ridge, TN); Meek, Thomas T. (Knoxville, TN)

1989-01-01T23:59:59.000Z

307

Microwave Moisture Measurement System for Hardwood Lumber Drying  

SciTech Connect

The goal of this project was to develop a prototype microwave-based moisture sensor system suitable for the kiln drying of hardwood lumber. The moisture sensors developed are battery powered and are capable of communicating with a host kiln control system via spread spectrum wireless communications. We have developed two designs of the sensors working at 4.5 to 6 GHz with linear response to moisture content (MC) over a range of 6-100%. These sensors allow us to make a swept frequency microwave transmission measurement through a small area of a board. Using the prototype electronics and sensors, we have obtained measurements of MC over the above MC range for red oak and yellow poplar with standard deviations of less than 1.5% MC. We have developed data for board thickness corrections and for temperature corrections for the MC measurement system.

Moschler, William W [University of Tennessee, Knoxville (UTK); Hanson, Gregory R [ORNL

2008-09-01T23:59:59.000Z

308

Continuous measurement of a microwave-driven solid state qubit  

E-Print Network (OSTI)

We analyze the dynamics of a continuously observed, damped, microwave driven solid state charge qubit. The qubit consists of a single electron in a double well potential, coupled to an oscillating electric field, and which is continuously observed by a nearby point contact electrometer. The microwave field induces transitions between the qubit eigenstates, which have a profound effect on the detector output current. We show that useful information about the qubit dynamics, such as dephasing and relaxation rates, and the Rabi frequency, can be extracted from the DC detector conductance and the detector output noise power spectrum. We also demonstrate that these phenomena can be used for single shot electron \\emph{spin} readout, for spin based quantum information processing.

S. D. Barrett; T. M. Stace

2004-12-10T23:59:59.000Z

309

Proposal for a coherent quantum memory for propagating microwave photons  

E-Print Network (OSTI)

We describe a multi-mode quantum memory for propagating microwave photons that combines a solid-state spin ensemble resonantly coupled to a frequency tunable single-mode microwave cavity. We first show that high efficiency mapping of the quantum state transported by a free photon to the spin ensemble is possible both for strong and weak coupling between the cavity mode and the spin ensemble. We also show that even in the weak coupling limit unit efficiency and faithful retrieval can be obtained through time reversal inhomogeneous dephasing based on spin echo techniques. This is possible provided that the cavity containing the spin ensemble and the transmission line are impedance matched. We finally discuss the prospects for an experimental implementation using a rare-earth doped crystal coupled to a superconducting resonator.

M. Afzelius; N. Sangouard; G. Johansson; M. U. Staudt; C. M. Wilson

2013-01-09T23:59:59.000Z

310

Porosity level estimation in polymer composites using microwaves  

Science Conference Proceedings (OSTI)

The ability of microwaves to monitor variations in porosity level of composite samples is studied. Measurements of several carefully prepared samples with different air volume fractions are performed at the frequency range of 8.2--18 GHz. The measurement results indicated that there is an excellent sensitivity to small differences in porosity level. A two-phase mixing model used for predicting the dielectric properties as a function of porosity level shows good agreement with the measured results. This model may be used to closely predict the amount of air content from measured dielectric properties. Changes in clustered (local) porosity are studied experimentally as well. Microwave scan of specially prepared samples with about 5% change in air content (local porosity variation) are also presented.

Gray, S.; Ganchev, S.; Qaddoumi, N.; Beauregard, G.; Radford, D. [Colorado State Univ., Fort Collins, CO (United States); Zoughi, R.

1995-03-01T23:59:59.000Z

311

Microwave-assisted synthesis of calcium phosphate nanowhiskers  

E-Print Network (OSTI)

phosphate (TCP), and biphasic HA-TCP] nanowhiskers and/or powders were produced by using a novel microwave-assisted combustion synthesis (auto ignition)/molten salt synthesis hybrid route. This work is an example of our synergistic processing philosophy combining these three technologies while taking advantage of their useful aspects. Aqueous solutions containing NaNO 3, Ca(NO 3) 24H 2O and KH 2PO 4 (with or without urea) were irradiated in a household microwave oven for 5 min at 600 watts of power. The as-synthesized precursors were then simply stirred in water at room temperature for 1htoobtain the nanowhiskers or powders of the desired calcium phosphate bioceramics. I.

Sahil Jalota; A. Cuneyt Tas; Sarit B. Bhaduri

2004-01-01T23:59:59.000Z

312

Observational Constraints on Microwave Anisotropy from Point Sources  

E-Print Network (OSTI)

Applying basic physical principles to recent observational results, we derive upper and lower limits on microwave anisotropy from point sources over the range of frequencies 10-1000 GHz. We examine the level of noise in the observations as a possible indication of source confusion at subarcminute scales. We also derive an upper limit on microwave anisotropy caused by the sources responsible for the Far-Infrared Background radiation detected in FIRAS data. Our upper limit on point source confusion of DeltaT/T=10^{-5} for a 10' beam at 100 GHz would cause severe foreground contamination for CMB anisotropy observations, although the actual contamination level is probably much lower. This upper limit constrains the long-feared possibility of an undetected population of sources with emission peaking near 100 GHz. Source detections closer to 100 GHz are needed to improve our knowledge of galaxy evolution at high redshift and to predict the level of point source confusion.

Eric Gawiser; Andrew Jaffe; Joseph Silk

1998-11-10T23:59:59.000Z

313

Microwave plasma CVD of NANO structured tin/carbon composites  

DOE Patents (OSTI)

A method for forming a graphitic tin-carbon composite at low temperatures is described. The method involves using microwave radiation to produce a neutral gas plasma in a reactor cell. At least one organo tin precursor material in the reactor cell forms a tin-carbon film on a supporting substrate disposed in the cell under influence of the plasma. The three dimensional carbon matrix material with embedded tin nanoparticles can be used as an electrode in lithium-ion batteries.

Marcinek, Marek (Warszawa, PL); Kostecki, Robert (Lafayette, CA)

2012-07-17T23:59:59.000Z

314

Superluminal tunneling of microwaves in smoothly varying transmission lines  

E-Print Network (OSTI)

Tunneling of microwaves through a smooth barrier in a transmission line is considered. In contrast to standard wave barriers, we study the case where the dielectric permittivity is positive, and the barrier is caused by the inhomogeneous dielectric profile. It is found that reflectionless, superluminal tunneling can take place for waves with a finite spectral width. The consequences of these findings are discussed, and an experimental setup testing our predictions is proposed.

Shvartsburg, A B; Brodin, G; Stenflo, L

2008-01-01T23:59:59.000Z

315

Investigation of Microwave Instability on Electron Storage Ring TLS  

Science Conference Proceedings (OSTI)

With the planned installation of a superconducting rf system, the new operation mode of TLS, the electron storage ring at NSRRC, is expected to double the beam intensity. Several accelerator physics topics need to be examined. Beam instability of single-bunch longitudinal microwave instability is one of these topics. We consider two approaches to measure the effective broad band impedance. We compare these measurement results with each other and to old data [Ref.1]. We calculate the threshold current of microwave instability with a mode-mixing analysis code written by Dr. K. Oide of KEK [Ref.2]. We also develop a multi-particle tracking code to simulate the instability. The results of simulation and measurement are compared and discussed. We conclude that doubling of beam current from 200 mA (1.5 mA/bunch) to 400 mA (3 mA/bunch) will not trigger the microwave instability even without a Landau cavity to lengthen the bunch. The benefit of Landau cavity is mainly for beam life time.

Wang, M.-H.; /NSRRC, Taiwan; Chao, A.; /SLAC

2005-05-17T23:59:59.000Z

316

Production of large resonant plasma volumes in microwave electron cyclotron resonance ion sources  

SciTech Connect

Microwave injection methods for enhancing the performance of existing electron cyclotron resonance (ECR) ion sources. The methods are based on the use of high-power diverse frequency microwaves, including variable-frequency, multiple-discrete-frequency, and broadband microwaves. The methods effect large resonant "volume" ECR regions in the ion sources. The creation of these large ECR plasma volumes permits coupling of more microwave power into the plasma, resulting in the heating of a much larger electron population to higher energies, the effect of which is to produce higher charge state distributions and much higher intensities within a particular charge state than possible in present ECR ion sources.

Alton, Gerald D. (Kingston, TN)

1998-01-01T23:59:59.000Z

317

Temperature and pore pressure distribution in a concrete slab during the microwave decontamination process  

SciTech Connect

As an application of microwave engineering, the new technology of concrete decontamination and decommissioning using microwave energy has been recently developed. The temperature and pore pressure within the concrete are studied theoretically in this paper. The heat and mass transfer within the porous concrete, coupled with temperature dependent dielectric property are investigated. The effects of microwave frequency (f), microwave power intensity (Q{sub 0,ave}), concrete porosity ({phi}) on the temperature and pore pressure distributions and their variations are fully discussed. The effects of the variation of complex dielectric permittivity ({epsilon}) and presentation of different steel reinforcements are also illustrated.

Li, W.; Ebadian, M.A. [Florida International Univ., Miami, FL (United States). Dept. of Mechanical Engineering; White, T.L.; Grubb, R.G.; Foster, D. Jr. [Oak Ridge National Lab., TN (United States)

1994-10-01T23:59:59.000Z

318

Development of a Permanent-Magnet Microwave Ion Source for a Sealed-Tube Neutron Generator  

E-Print Network (OSTI)

and con- rity, non-proliferation, and nuclear safeguards5 10 11 n/s in non-proliferation applica- tions. Microwave

Waldmann, Ole

2011-01-01T23:59:59.000Z

319

Microwave technology for waste management applications including disposition of electronic circuitry  

SciTech Connect

Microwave technology is being developed nationally and internationally for a variety of environmental remediation purposes. These efforts include treatment and destruction of a vast array of gaseous, liquid and solid hazardous wastes as well as subsequent immobilization of selected components. Microwave technology provides an important contribution to an arsenal of existing remediation methods that are designed to protect the public and environment from undesirable consequences of hazardous materials. Applications of microwave energy for environmental remediation will be discussed. Emphasized will be a newly developed microwave process designed to treat discarded electronic circuitry and reclaim the precious metals within for reuse.

Wicks, G.G. [Westinghouse Savannah River Co., Aiken, SC (United States); Clark, D.E.; Schulz, R.L.; Folz, D.C. [Univ. of Florida, Gainesville, FL (United States)

1995-09-01T23:59:59.000Z

320

Synthesis and characterization of pyrite (FeS{sub 2}) using microwave irradiation  

Science Conference Proceedings (OSTI)

A procedure using microwave irradiation was studied to develop a fast and reliable method for synthesizing pyrite. Pyrite was successfully synthesized within a few minutes via reaction of ferric iron and hydrogen sulfide under the influence of irradiation by a conventional microwave oven. The SEM-EDX study revealed that the nucleation and growth of pyrite occurred on the surface of elemental sulfur, where polysulfides are available. Compared to conventional heating, using microwave energy results in rapid (<1 min) formation of smaller particulates of pyrite. Higher levels of microwave power can form pyrite even faster, but faster reaction can lead to the formation of pyrite with defects.

Kim, Eun Jung, E-mail: ekim229@uwo.ca [Department of Civil Engineering Texas A and M University, 3136 TAMU, College Station, TX, 77843 (United States); Batchelor, Bill [Department of Civil Engineering Texas A and M University, 3136 TAMU, College Station, TX, 77843 (United States)

2009-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "dayton hilltop microwave" 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.


321

A conceptual scheme for focusing of high power microwaves in SYMPLE  

Science Conference Proceedings (OSTI)

The conceptual Scheme of Focusing the High pulsed microwave power generated by "VIRCATOR" on plasma produced in "SYMPLE", using Plasma Lens, is discussed.

Renu Bahl; K. Sathyanarayna; V. P. Anitha; Priyavandna J. Rathod; Y. C. Saxena

2011-02-01T23:59:59.000Z

322

Rapid determination of wood fuel moisture content using a microwave oven for drying  

SciTech Connect

A method of determining moisture content (MC) of wood fuel using a microwave oven for drying the wood was evaluated by drying paired samples of five different wood fuel types in a microwave oven and a conventional oven. When compared to the conventional oven drying method, the microwave technique produces consistently lower MC determinations, although the differences are less than 1 percent. The advantage of the microwave technique is the speed at which MC determinations can be determined (less than 15 minutes). Schedules for drying five wood fuel types are presented. (Refs. 7).

Harris, R.A.

1982-10-01T23:59:59.000Z

323

J-13: Effect of Co Substitution on Microwave Absorption of BaFe12O19  

Science Conference Proceedings (OSTI)

Presentation Title, J-13: Effect of Co Substitution on Microwave Absorption of ... Energy Harvesting and Cooling with Flexible and Light-Weight Organic...

324

Radiative Transfer Simulations Using Mesoscale Cloud Model Outputs: Comparisons with Passive Microwave and Infrared Satellite Observations for Midlatitudes  

Science Conference Proceedings (OSTI)

Real midlatitude meteorological cases are simulated over western Europe with the cloud mesoscale model Mso-NH, and the outputs are used to calculate brightness temperatures at microwave frequencies with the Atmospheric Transmission at Microwave (...

Ingo Meirold-Mautner; Catherine Prigent; Eric Defer; Juan R. Pardo; Jean-Pierre Chaboureau; Jean-Pierre Pinty; Mario Mech; Susanne Crewell

2007-05-01T23:59:59.000Z

325

Construction of the Remote Sensing Systems V3.2 Atmospheric Temperature Records from the MSU and AMSU Microwave Sounders  

Science Conference Proceedings (OSTI)

Measurements made by microwave sounding instruments provide a multidecadal record of atmospheric temperature change. Measurements began in late 1978 with the launch of the first Microwave Sounding Unit (MSU) and continue to the present. In 1998, ...

Carl A. Mears; Frank J. Wentz

2009-06-01T23:59:59.000Z

326

Remote three-dimensional temperature sensing using planar laser induced fluorescence : development and applications to microwave heated liquids  

E-Print Network (OSTI)

Microwave heating is an important technology that has been hampered in application by difficulties in measuring temperatures and temperature distributions during the microwave heating process. This thesis describes the ...

Finegan, Timothy Michael

2004-01-01T23:59:59.000Z

327

Contribution of Mesoscale Convective Complexes to Rainfall in Sahelian Africa: Estimates from Geostationary Infrared and Passive Microwave Data  

Science Conference Proceedings (OSTI)

The contribution of mesoscale convective complexes to the JulySeptember rainfall in Sahelian Africa is assessed using passive microwave data from the Special Sensor Microwave Image and infrared (IR) data from the European Geostationary ...

Arlene G. Laing; J. Michael Fritsch; Andrew J. Negri

1999-07-01T23:59:59.000Z

328

Satellite-Based Tropical Cyclone Intensity Estimation Using the NOAA-KLM Series Advanced Microwave Sounding Unit (AMSU)  

Science Conference Proceedings (OSTI)

Satellite-borne passive microwave radiometers, such as the Advanced Microwave Sounding Unit (AMSU) on the NOAA polar-orbiting series, are well suited to monitor tropical cyclones (TCs) by virtue of their ability to assess changes in tropospheric ...

Kurt F. Brueske; Christopher S. Velden

2003-04-01T23:59:59.000Z

329

An Example of Temperature Structure Differences in Two Cyclone Systems Derived from the Advanced Microwave Sounder Unit  

Science Conference Proceedings (OSTI)

The Advanced Microwave Sounding Unit (AMSU) has better horizontal resolution and vertical temperature sounding abilities than its predecessor, the Microwave Sounding Unit (MSU). Those improved capabilities are demonstrated with observations of ...

John A. Knaff; Raymond M. Zehr; Mitchell D. Goldberg; Stanley Q. Kidder

2000-08-01T23:59:59.000Z

330

Microwave Emission Brightness Temperature Histograms (METH) Rain Rates for Climate Studies: Remote Sensing Systems SSM/I Version-6 Results  

Science Conference Proceedings (OSTI)

A satellite microwave emission brightness temperature histograms (METH) technique has been applied to Special Sensor Microwave Imager (SSM/I) data taken on board the Defense Meteorological Satellite Program (DMSP) satellites and preprocessed by ...

Long S. Chiu; Roongroj Chokngamwong

2010-01-01T23:59:59.000Z

331

Intercalibrating microwave satellite observations for monitoring long-term variations in upper and mid-tropospheric water vapor  

Science Conference Proceedings (OSTI)

We analyze the growing archive of 183 GHz water vapor absorption band measurements from Advanced Microwave Sounding Unit-B (AMSU-B) and Microwave Humidity Sounder (MHS) onboard polar orbiting satellites and document adjustments necessary to use ...

Eui-Seok Chung; Brian J. Soden; Viju O. John

332

Inference of Cloud Temperature and Thickness by Microwave Radiometry from Space  

Science Conference Proceedings (OSTI)

The Scanning Multichannel Microwave Radiometer (SMMR) on the Seasat and Nimbus-7 satellite measured microwave radiation at 6.6, 10.69, 18.0, 21.0 and 37.0 GHz with both horizontal and vertical polarizations. Numerical simulations have been ...

P. C. Pandey; E. G. Njoku; J. W. Waters

1983-11-01T23:59:59.000Z

333

Microwave applicator for in-drum processing of radioactive waste slurry  

DOE Patents (OSTI)

A microwave applicator for processing of radioactive waste slurry uses a waveguide network which splits an input microwave of TE.sub.10 rectangular mode to TE.sub.01 circular mode. A cylindrical body has four openings, each receiving 1/4 of the power input. The waveguide network includes a plurality of splitters to effect the 1/4 divisions of power.

White, Terry L. (Oak Ridge, TN)

1994-01-01T23:59:59.000Z

334

Radiative Transfer to Space through a Precipitating Cloud at Multiple Microwave Frequencies. Part I: Model Description  

Science Conference Proceedings (OSTI)

In a two-part study we investigate the impact of time-dependent cloud microphysical structure on the transfer to space of passive microwave radiation at several frequencies across the EHF and lower SHF portions of the microwave spectrum in order ...

Alberto Mugnai; Eric A. Smith

1988-09-01T23:59:59.000Z

335

HARD X-RAY AND MICROWAVE OBSERVATIONS OF MICROFLARES Jiong Qiu,1, 2  

E-Print Network (OSTI)

HARD X-RAY AND MICROWAVE OBSERVATIONS OF MICROFLARES Jiong Qiu,1, 2 Chang Liu,2 Dale E. Gary,2 Gelu, we study solar microflares using the coordinated hard X-ray and microwave observations obtained the time derivative of soft X-rays and 14­20 keV hard X-rays, i.e., the Neupert effect, in about one

336

Microwave-assisted synthesis of sensitive silver substrate for surface-enhanced Raman scattering spectroscopy  

SciTech Connect

A sensitive silver substrate for surface-enhanced Raman scattering (SERS) spectroscopy is synthesized under multimode microwave irradiation. The microwave-assisted synthesis of the SERS-active substrate was carried out in a modified domestic microwave oven of 2450 MHz, and the reductive reaction was conducted in a polypropylene container under microwave irradiation with a power of 100 W for 5 min. Formaldehyde was employed as both the reductant and microwave absorber in the reductive process. The effects of different heating methods (microwave dielectric and conventional) on the properties of the SERS-active substrates were investigated. Samples obtained with 5 min of microwave irradiation at a power of 100 W have more well-defined edges, corners, and sharper surface features, while the samples synthesized with 1 h of conventional heating at 40 deg. C consist primarily of spheroidal nanoparticles. The SERS peak intensity of the {approx}1593 cm{sup -1} band of 4-mercaptobenzoic acid adsorbed on silver nanoparticles synthesized with 5 min of microwave irradiation at a power of 100 W is about 30 times greater than when it is adsorbed on samples synthesized with 1 h of conventional heating at 40 deg. C. The results of quantum chemical calculations are in good agreement with our experimental data. This method is expected to be utilized for the synthesis of other metal nanostructural materials.

Xia Lixin; Wang Haibo; Wang Jian; Gong Ke; Jia Yi; Zhang Huili [College of Chemistry, Liaoning University, Shenyang 110036 (China); Sun Mengtao [Beijing National Laboratory for Condensed Matter Physics and Laboratory of Soft Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China)

2008-10-07T23:59:59.000Z

337

Li-doped (Ba,Sr)TiO3 thick film interdigital capacitors for microwave applications  

Science Conference Proceedings (OSTI)

Microwave properties of Li-doped (Ba,Sr)TiO"3 thick film interdigital capacitors have been investigated. According to the reported papers, BaSrTiO"3 materials, paraelectric state at the room temperature, have high dielectric permittivity (>500 @ 1MHz) ... Keywords: BST, Microwave properties, Screen printing, Thick film, Tunability

Se-Ho Kim; Jung-Hyuk Koh

2009-01-01T23:59:59.000Z

338

Method and apparatus for measuring butterfat and protein content using microwave absorption techniques  

SciTech Connect

A self calibrating method and apparatus for measuring butterfat and protein content based on measuring the microwave absorption of a sample of milk at several microwave frequencies. A microwave energy source injects microwave energy into the resonant cavity for absorption and reflection by the sample undergoing evaluation. A sample tube is centrally located in the resonant cavity passing therethrough and exposing the sample to the microwave energy. A portion of the energy is absorbed by the sample while another portion of the microwave energy is reflected back to an evaluation device such as a network analyzer. The frequency at which the reflected radiation is at a minimum within the cavity is combined with the scatter coefficient S.sub.11 as well as a phase change to calculate the butterfat content in the sample. The protein located within the sample may also be calculated in a likewise manner using the frequency, S.sub.11 and phase variables. A differential technique using a second resonant cavity containing a reference standard as a sample will normalize the measurements from the unknown sample and thus be self-calibrating. A shuttered mechanism will switch the microwave excitation between the unknown and the reference cavities. An integrated apparatus for measuring the butterfat content in milk using microwave absorption techniques is also presented.

Fryer, Michael O. (Roberts, ID); Hills, Andrea J. (Iowa City, IA); Morrison, John L. (Idaho Falls, ID)

2000-01-01T23:59:59.000Z

339

Microsoft PowerPoint - Microwave Off-gas srnlTechBriefp1.ppt  

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

Microwave Off-Gas Treatment Microwave Off-Gas Treatment System at a glance  simple design  compact and portable  easy to operate  can be remotely operated  low cost, low maintenance  scalable for large and small volume operations  U.S. patent 6,534,754 The Microwave Off-Gas Treatment System uses microwave energy and high temperatures to treat off- gas emissions to reduce contaminants to acceptable or nondetectable levels. This allows the treated gaseous waste stream to be safety discharged to the atmosphere. New method Scientists at Savannah River National Laboratory (SRNL), working with colleagues from the University of Florida (UF), have invented a unique system to treat off-gas emissions from safe discharge into the atmosphere. The compact and portable Microwave Off-Gas Treatment System is designed to

340

Method of nitriding, carburizing, or oxidizing refractory metal articles using microwaves  

DOE Patents (OSTI)

A method of nitriding an article of refractory-nitride-forming metal or metalloids. A consolidated metal or metalloid article is placed inside a microwave oven and nitrogen containing gas is introduced into the microwave oven. The metal or metalloid article is heated to a temperature sufficient to react the metal or metalloid with the nitrogen by applying a microwave energy within the microwave oven. The metal or metalloid article is maintained at that temperature for a period of time sufficient to convert the article of metal or metalloid to an article of refractory nitride. in addition, a method of applying a coating, such as a coating of an oxide, a carbide, or a carbo-nitride, to an article of metal or metalloid by microwave heating.

Holcombe, Cressie E. (Knoxville, TN); Dykes, Norman L. (Oak Ridge, TN); Tiegs, Terry N. (Lenoir City, TN)

1992-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "dayton hilltop microwave" 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

Method of nitriding, carburizing, or oxidizing refractory metal articles using microwaves  

DOE Patents (OSTI)

A method of nitriding an article of refractory-nitride-forming metal or metalloids. A consolidated metal or metalloid article is placed inside a microwave oven and nitrogen containing gas is introduced into the microwave oven. The metal or metalloid article is heated to a temperature sufficient to react the metal or metalloid with the nitrogen by applying a microwave energy within the microwave oven. The metal or metalloid article is maintained at that temperature for a period of time sufficient to convert the article of metal or metalloid to an article of refractory nitride. in addition, a method of applying a coating, such as a coating of an oxide, a carbide, or a carbo-nitride, to an article of metal or metalloid by microwave heating.

Holcombe, C.E.; Dykes, N.L.; Tiegs, T.N.

1992-10-13T23:59:59.000Z

342

Imprint of Sterile Neutrinos in the Cosmic Microwave Background Radiation  

E-Print Network (OSTI)

The existence of low-mass sterile neutrinos is suggested by the current status of solar and atmospheric neutrinos together with the LSND experiment. In typical four-flavor scenarios, neutrinos would contribute to a cosmic hot dark matter component and to an increased radiation content at the epoch of matter-radiation equality. These effects leave their imprint in sky maps of the cosmic microwave background radiation (CMBR) and may thus be detectable with the precision measurements of the upcoming MAP and PLANCK missions.

Steen Hannestad; Georg Raffelt

1998-05-17T23:59:59.000Z

343

Microwave sintering of nanophase ceramics without concomitant grain growth  

DOE Patents (OSTI)

A method of sintering nanocrystalline material is disclosed wherein the nanocrystalline material is microwaved to heat the material to a temperature less than about 70% of the melting point of the nanocrystalline material expressed in degrees K. This method produces sintered nanocrystalline material having a density greater than about 95% of theoretical and an average grain size not more than about 3 times the average grain size of the nanocrystalline material before sintering. Rutile TiO[sub 2] as well as various other ceramics have been prepared. Grain growth of as little as 1.67 times has resulted with densities of about 90% of theoretical.

Eastman, J.A.; Sickafus, K.E.; Katz, J.D.

1991-04-15T23:59:59.000Z

344

Microwave lamp with multi-purpose rotary motor  

DOE Patents (OSTI)

In a microwave powered electrodeless lamp, a single rotary motor is used to (a) rotate the bulb and (b) provide rotary motion to a blower or pump means for providing cooling fluid to the magnetron and/or to a forced gas cooler for providing cooling gas to the bulb. The blower may consist of only of an impeller without the usual blower housing. The motor, bulb stem and bulb, or motor, bulb stem, bulb and blower may be formed as an integral unit so as to facilitate replacement. 8 figs.

Ury, M.G.; Turner, B.; Wooten, R.D.

1999-02-02T23:59:59.000Z

345

Combination biological and microwave treatments of used rubber products  

DOE Patents (OSTI)

A process and resulting product is provided in which a vulcanized solid particulate, such as vulcanized crumb rubber, has select chemical bonds altered by biotreatment with thermophillic microorganisms selected from natural isolates from hot sulfur springs. Following the biotreatment, microwave radiation is used to further treat the surface and to treat the bulk interior of the crumb rubber. The resulting combined treatments render the treated crumb rubber more suitable for use in new rubber formulations. As a result, larger loading levels and sizes of the treated crumb rubber can be used in new rubber mixtures and good properties obtained from the new recycled products.

Fliermans, Carl B. (Augusta, GA); Wicks, George G. (Aiken, SC)

2002-01-01T23:59:59.000Z

346

High-Power Microwave Switch Employing Electron Beam Triggering  

Science Conference Proceedings (OSTI)

A high-power active microwave pulse compressor is described that modulates the quality factor Q of the energy storage cavity by a new means involving mode conversion controlled by a triggered electron-beam discharge through a switch cavity. The electron beam is emitted from a diamond-coated molybdenum cathode. This report describes the principle of operation, the design of the switch, the configuration used for the test, and the experimental results. The pulse compressor produced output pulses with 140 - ??165 MW peak power, power gain of 16 - 20, and pulse duration of 16 - 20 ns at a frequency of 11.43 GHz.

Jay L. Hirshfield

2012-09-19T23:59:59.000Z

347

A detection of bright features in the microwave background  

E-Print Network (OSTI)

We report the characterization of bright, compact features in the cosmic microwave background radiation (CMBR) detected during the June 1992 and June 1994 balloon flights of the Medium Scale Anisotropy Measurement (MSAM1-92 and MSAM1-94, respectively). Spectral flux densities are determined for each feature at 5.7, 9.3, and 16.5 cm^{-1}. No viable counterparts for these features were found in source catalogs at 5 GHz or at 100 \\mum. The measured spectrum of each feature is consistent with a temperature fluctuation in the CMBR. The existence of these features is consistent with adiabatic fluctuation models of anisotropy in the CMBR.

Kowitt, M S; Cottingham, D A; Fixsen, D J; Inman, C A; Meyer, S; Page, L A; Puchalla, J L; Ruhl, J E; Silverberg, R F

1996-01-01T23:59:59.000Z

348

Microwave lamp with multi-purpose rotary motor  

DOE Patents (OSTI)

In a microwave powered electrodeless lamp, a single rotary motor is used to a) rotate the bulb and b) provide rotary motion to a blower or pump means for providing cooling fluid to the magnetron and/or to a forced gas cooling for providing cooler gas to the bulb. The blower may consist of only of an impeller without the usual blower housing. The motor, bulb stem and bulb, or motor, bulb stem, bulb and blower may be formed as an integral unit so as to facilitate replacement.

Ury, Michael G. (Bethesda, MD); Turner, Brian (Myersville, MD); Wooten, Robert D. (Rockville, MD)

1999-01-01T23:59:59.000Z

349

Efficient preparation of nanocrystalline anatase TiO{sub 2} and V/TiO{sub 2} thin layers using microwave drying and/or microwave calcination technique  

Science Conference Proceedings (OSTI)

This study has demonstrated that the synthesis of TiO{sub 2} and V/TiO{sub 2} thin layers may be significantly improved and extended if microwave energy is employed during the drying and/or calcination step. Thin nanoparticulate titania layers were prepared via the sol-gel method using titanium n-butoxide as a precursor. As prepared films were then analyzed by means of various characterization techniques (Raman spectroscopy, UV/Vis, AFM, XPS) in order to determine their functional properties. The photocatalytic activities of prepared layers were quantified by the decoloring rate of Rhodamine B. All thermal treatments in microwave field were done in the same manner, by using an IR pyrometer in the microwave oven and monitoring the temperature of the heating. Nevertheless the microwave and thermally prepared materials were different. This in turn may lead to differences in their functional and also photocatalytic properties. - Graphical abstract: This study has demonstrated that the synthesis of thin layers may be improved and extended if microwave energy is employed during the preparation process. Microwave processing has the potential to reduce the time, cost and energy input for the production of thin layers.

Zabova, H., E-mail: zabova@icpf.cas.c [Institute of Chemical Process Fundamentals, Academy of Sciences of the Czech Republic, v.v.i., Rozvojova 135, 165 02 Prague 6 (Czech Republic); Sobek, J.; Cirkva, V.; Solcova, O. [Institute of Chemical Process Fundamentals, Academy of Sciences of the Czech Republic, v.v.i., Rozvojova 135, 165 02 Prague 6 (Czech Republic); Kment, S. [Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 2, 182 21 Prague 8 (Czech Republic); Hajek, M. [Institute of Chemical Process Fundamentals, Academy of Sciences of the Czech Republic, v.v.i., Rozvojova 135, 165 02 Prague 6 (Czech Republic)

2009-12-15T23:59:59.000Z

350

SLOW MAGNETOACOUSTIC OSCILLATIONS IN THE MICROWAVE EMISSION OF SOLAR FLARES  

Science Conference Proceedings (OSTI)

Analysis of the microwave data, obtained in the 17 GHz channel of the Nobeyama Radioheliograph during the M1.6 flare on 2010 November 4, revealed the presence of 12.6 minute oscillations of the emitting plasma density. The oscillations decayed with the characteristic time of about 15 minutes. Similar oscillations with the period of about 13.8 minutes and the decay time of 25 minutes are also detected in the variation of EUV emission intensity measured in the 335 A channel of the Solar Dynamics Observatory/Atmospheric Imaging Assembly. The observed properties of the oscillations are consistent with the oscillations of hot loops observed by the Solar and Heliospheric Observatory/Solar Ultraviolet Measurement of Emitted Radiation (SUMER) in the EUV spectra in the form of periodic Doppler shift. Our analysis presents the first direct observations of the slow magnetoacoustic oscillations in the microwave emission of a solar flare, complementing accepted interpretations of SUMER hot loop oscillations as standing slow magnetoacoustic waves.

Kim, S.; Shibasaki, K. [Nobeyama Solar Radio Observatory/NAOJ, Nagano 384-1305 (Japan); Nakariakov, V. M., E-mail: sjkim@nro.nao.ac.jp [Physics Department, University of Warwick, Coventry, CV4 7AL (United Kingdom)

2012-09-10T23:59:59.000Z

351

MAXIMA: A balloon-borne cosmic microwave backgroundexperiment  

SciTech Connect

We describe the Millimeter wave Anisotropy eXperiment IMaging Array (MAXIMA), a balloon-borne experiment which measured the temperature anisotropy of the cosmic microwave background (CMB) on angular scales of 10(minutes) to 5 degrees. MAXIMA mapped the CMB using 16 bolometric detectors in spectral bands centered at 150, 240, and 410 GHz, with 10(minutes) resolution at all frequencies. The combined receiver sensitivity to CMB anisotropy was similar to 40 mu K root s. The bolometric detectors, which were cooled to 100 mK, were a prototype of the detectors which will be used on the Planck Surveyor Satellite of the European Space Agency. Systematic parasitic contributions were controlled by using four uncorrelated spatial modulations, thorough cross-linking, multiple independent CMB observations, heavily baffled optics, and strong spectral discrimination. Pointing reconstruction was accurate to 1(minute), and absolute calibration was better than 4 percent. Two MAXIMA flights with more than 8.5 h of CMB observations have mapped a total of 300deg(2) of the sky in regions of negligible known foreground emission. MAXIMA results have been released in previous publications and shown to be consistent with the Wilkinson Microwave Anisotropy Probe. MAXIMA Imaps, power spectra, and correlation matrices are publicly available at http://cosmology.berkeley.edu/maxima.

Rabii, B.; Winant, C.D.; Collins, J.S.; Lee, A.T.; Richards,P.L.; Abroe, M.E.; Hanany, S.; Johnson, B.R.; Ade, P.; Balbi, A.; Bock,J.J.; Borrill, J.; Stompor, R.; Boscaleri, A.; Pascale, E.; de Bernardis,P.; Ferreira, P.G.; Hristov, V.V.; Lange, A.E.; Jaffe, A.H.; Netterfield,C.B.; Smoot, G.F.; Wu, J.H.P.

2004-03-03T23:59:59.000Z

352

COSMIC MICROWAVE BACKGROUND CONSTRAINTS OF DECAYING DARK MATTER PARTICLE PROPERTIES  

SciTech Connect

If a component of cosmological dark matter is made up of massive particles-such as sterile neutrinos-that decay with cosmological lifetime to emit photons, the reionization history of the universe would be affected, and cosmic microwave background anisotropies can be used to constrain such a decaying particle model of dark matter. The optical depth depends rather sensitively on the decaying dark matter particle mass m{sub dm}, lifetime {tau}{sub dm}, and the mass fraction of cold dark matter f that they account for in this model. Assuming that there are no other sources of reionization and using the Wilkinson Microwave Anisotropy Probe 7-year data, we find that 250 eV {approx}< m{sub dm} {approx}< 1 MeV, whereas 2.23 Multiplication-Sign 10{sup 3} yr {approx}< {tau}{sub dm}/f {approx}< 1.23 Multiplication-Sign 10{sup 18} yr. The best-fit values for m{sub dm} and {tau}{sub dm}/f are 17.3 keV and 2.03 Multiplication-Sign 10{sup 16} yr, respectively.

Yeung, S.; Chan, M. H.; Chu, M.-C., E-mail: mcchu@phy.cuhk.edu.hk [Department of Physics and Institute of Theoretical Physics, Chinese University of Hong Kong, Shatin, New Territories (Hong Kong)

2012-08-20T23:59:59.000Z

353

OBSERVATIONAL SCAN-INDUCED ARTIFICIAL COSMIC MICROWAVE BACKGROUND ANISOTROPY  

SciTech Connect

Reliably detecting the cosmic microwave background (CMB) anisotropy is of great importance in understanding the birth and evolution of the universe. One of the difficulties in CMB experiments is the domination of measured CMB anisotropy maps by the Doppler dipole moment from the motion of the antenna relative to the CMB. For each measured temperature, the expected dipole component has to be calculated separately and then subtracted from the data. A small error in dipole direction, antenna pointing direction, sidelobe pickup contamination, and/or timing synchronism can introduce a significant deviation in the dipole-cleaned CMB temperature. After a full-sky observational scan, the accumulated deviations will be structured with a pattern closely correlated with the observation pattern with artificial anisotropies, including artificial quadrupole, octupole, etc., on large scales in the final CMB map. Such scan-induced anisotropies on large scales can be predicted by the true dipole moment and observational scan scheme. Indeed, the expected scan-induced quadrupole pattern of the Wilkinson Microwave Anisotropy Probe (WMAP) mission is perfectly in agreement with the published WMAP quadrupole. With the scan strategy of the Planck mission, we predict that scan-induced anisotropies will also produce an artificially aligned quadrupole. The scan-induced anisotropy is a common problem for all sweep missions and, like the foreground emissions, has to be removed from observed maps. Without doing so, CMB maps from COBE, WMAP, and Planck are not reliable for studying the CMB anisotropy.

Liu Hao; Li Tipei, E-mail: liuhao@ihep.ac.cn, E-mail: litp@tsinghua.edu.cn [Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing (China)

2011-05-10T23:59:59.000Z

354

Floating data acquisition system for microwave calorimeter measurements on MTX  

SciTech Connect

A microwave calorimeter has been designed for making 140-GHz absorption measurements on the MTX. Measurement of the intensity and spatial distribution of the FEL-generated microwave beam on the inner wall will indicate the absorption characteristics of the plasma when heated with a 140 GHz FEL pulse. The calorimeter works by monitoring changes of temperature in silicon carbide tiles located on the inner wall of the tokamak. Thermistors are used to measure the temperature of each tile. The tiles are located inside the tokamak about 1 cm outside of the limiter radius at machine potential. The success of this measurement depends on our ability to float the data acquisition system near machine potential and isolate it from the rest of the vault ground system. Our data acquisition system has 48 channels of thermistor signal conditioning, a multiplexer and digitizer section, a serial data formatter, and a fiber-optic transmitter to send the data out. Additionally, we bring timing signals to the interface through optical fibers to tell it when to begin measurement, while maintaining isolation. The receiver is an HP 200 series computer with a serial data interface; the computer provides storage and local display for the shot temperature profile. Additionally, the computer provides temporary storage of the data until it can be passed to a shared resource management system for archiving. 2 refs., 6 figs.

Sewall, N.R.; Meassick, S. (Lawrence Livermore National Lab., CA (USA))

1989-09-13T23:59:59.000Z

355

Signatures of Cosmic Strings in the Cosmic Microwave Background  

E-Print Network (OSTI)

We report a search for signatures of cosmic strings in the the Cosmic Microwave Background data from the Wilkinson Microwave Anisotropy Probe. We used a digital filter designed to search for individual cosmic strings and found no evidence for them in the WMAP CMB anisotropies to a level of $\\Delta T/T \\sim 0.29$ mK. This corresponds to an absence of cosmic strings with $ G\\mu \\ga 1.07 \\times 10^{-5}$ for strings moving with velocity $v = c/\\sqrt{2}$. Unlike previous work, this limit does not depend on an assumed string abundance. We have searched the WMAP data for evidence of a cosmic string recently reported as the CSL-1 object, and found an ``edge'' with 2$\\sigma$ significance. However, if this edge is real and produced by a cosmic string, it would have to move at velocity $\\ga$ 0.94c. We also present preliminary limits on the CMB data that will be returned by the PLANCK satellite for comparison. With the available information on the PLANCK satellite, we calculated that it would be twice as sensitive to cosmic strings as WMAP.

Amy S. Lo; Edward L. Wright

2005-03-05T23:59:59.000Z

356

Electric field measurement in microwave discharge ion thruster with electro-optic probe  

Science Conference Proceedings (OSTI)

In order to understand the internal phenomena in a microwave discharge ion thruster, it is important to measure the distribution of the microwave electric field inside the discharge chamber, which is directly related to the plasma production. In this study, we proposed a novel method of measuring a microwave electric field with an electro-optic (EO) probe based on the Pockels effect. The probe, including a cooling system, contains no metal and can be accessed in the discharge chamber with less disruption to the microwave distribution. This method enables measurement of the electric field profile under ion beam acceleration. We first verified the measurement with the EO probe by a comparison with a finite-difference time domain numerical simulation of the microwave electric field in atmosphere. Second, we showed that the deviations of the reflected microwave power and the beam current were less than 8% due to inserting the EO probe into the ion thruster under ion beam acceleration. Finally, we successfully demonstrated the measurement of the electric-field profile in the ion thruster under ion beam acceleration. These measurements show that the electric field distribution in the thruster dramatically changes in the ion thruster under ion beam acceleration as the propellant mass flow rate increases. These results indicate that this new method using an EO probe can provide a useful guide for improving the propulsion of microwave discharge ion thrusters.

Ise, Toshiyuki; Tsukizaki, Ryudo; Koizumi, Hiroyuki [The University of Tokyo, Bunkyo-ku, Tokyo 113-8656 (Japan); Togo, Hiroyoshi [Microsystem Integration Laboratories, Nippon Telegraph and Telephone, Morinosato, Atsugi-shi, Kanagawa 243-0198 (Japan); Kuninaka, Hitoshi [Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Chuo-ku, Sagamihara, Kanagawa 229-8510 (Japan)

2012-12-15T23:59:59.000Z

357

A New Microwave Temperature Profiler … First Measurements in Polar Regions  

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

Microwave Temperature Profiler - First Microwave Temperature Profiler - First Measurements in Polar Regions E. N. Kadygrov, A. V. Koldaev, and A. S. Viazankin Central Aerological Observatory Moscow, Russia A. Argentini, and A. Conidi Institute of Atmospheric Physics CNR, Italy Introduction Temperature inversions are a ubiquitous feature of the high latitude atmospheric boundary layer (ABL). In Polar Regions, the temperature inversion is a complicated phenomenon involving interactions between surface radiative cooling, subsidence and warm air advection. In the period 1997-2002, several microwave temperature profilers were used to measure temperature inversion parameters at one of the three sites of the U.S. Department of Energy (DOE) Atmospheric Radiation Measurement (ARM)

358

Microwave impregnation of porous materials with thermal energy storage materials  

DOE Patents (OSTI)

A method for impregnating a porous, non-metallic construction material with a solid phase-change material is described. The phase-change material in finely divided form is spread onto the surface of the porous material, after which the porous material is exposed to microwave energy for a time sufficient to melt the phase-change material. The melted material is spontaneously absorbed into the pores of the porous material. A sealing chemical may also be included with the phase-change material (or applied subsequent tc the phase-change material) to seal the surface of the porous material. Fire retardant chemicals may also be included with the phase-change materials. The treated construction materials are better able to absorb thermal energy and exhibit increased heat storage capacity.

Benson, D.K.; Burrows, R.W.

1991-03-13T23:59:59.000Z

359

Charting the New Frontier of the Cosmic Microwave Background Polarization  

E-Print Network (OSTI)

The anisotropies of the cosmic microwave background are a gold mine for cosmology and fundamental physics. ESA's Planck satellite should soon extract all information from the temperature vein but will be limited concerning the measurement of the degree of polarization of the anisotropies. This polarization information allows new independent tests of the standard cosmological paradigm, improves knowledge of cosmological parameters and last but not least is the best window available for constraining the physics of the very early universe, particularly the expected background of primordial gravitational waves. But exploiting this vein will be a challenge, since the sensitivity required is {\\em at least} 10 times better than what Planck might achieve at best, with the necessary matching level of control of all systematics effects, both instrumental and astrophysical (foregrounds). We here recall the cosmological context and the case for CMB polarization studies. We also briefly introduce the SAMPAN project, a des...

Bouchet, F R; Camus, P; Dsert, F X; Piat, M; Ponthieu, N; Camus, Ph.

2005-01-01T23:59:59.000Z

360

Extracting cosmic microwave background polarisation from satellite astrophysical maps  

E-Print Network (OSTI)

We present the application of the Fast Independent Component Analysis technique for blind component separation to polarised astrophysical emission. We study how the Cosmic Microwave Background (CMB) polarised signal, consisting of $E$ and $B$ modes, can be extracted from maps affected by substantial contamination from diffuse Galactic foregrounds and instrumental noise. We perform the analysis of all sky maps simulated accordingly to the nominal performances of the Low Frequency Instrument (LFI) aboard the Planck satellite; the sky signal is modeled as a superposition of CMB, generated by a Gaussian, nearly scale invariant cosmological perturbation spectrum, and the existing simulated polarisation templates of Galactic synchrotron. Our results indicate that the angular power spectrum of CMB $E$ modes can be recovered on all scales up to $\\ell\\simeq 1000$, corresponding to the fourth acoustic oscillation, while $B$ modes can be detected, up to their turnover at $\\ell\\simeq 100$ if cosmological tensor amplitude...

Baccigalupi, C; De Zotti, G; Smoot, G F; Burigana, C; Maino, D; Bedini, L; Salerno, E

2002-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "dayton hilltop microwave" 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

High Power Microwave Switch Employing Electron Beam Triggering  

Science Conference Proceedings (OSTI)

A new type of switch for modulation of the Q-factor of a multi-mode storage resonator in a high-power active microwave pulse compressor is described. The operating principle of the switch is based on a sharp increase in the TE{sub 02{yields}}TE{sub 01} coupling coefficient, when an electron beam is injected into the switch cavity. The switch was tested at low power level in a compressor operated at X-band. A power gain of 19-20 in the compressed pulse with pulse duration of 40-50 ns was achieved. The proposed switch shows good prospects for use in high-power active pulse compressors.

Ivanov, O. A.; Vikharev, A. L. [Institute of Applied Physics RAS, Nizhny Novgorod, 603600 (Russian Federation); Omega-P, Inc., New Haven, Connecticut 06510 (United States); Isaev, V. A.; Lobaev, M. A. [Institute of Applied Physics RAS, Nizhny Novgorod, 603600 (Russian Federation); Hirshfield, J. L. [Omega-P, Inc., New Haven, Connecticut 06510 (United States); Department of Physics, Yale University, New Haven, Connecticut 06511 (United States)

2010-11-04T23:59:59.000Z

362

Non-Gaussianity and the Cosmic Microwave Background Anisotropies  

E-Print Network (OSTI)

We review in a pedagogical way the present status of the impact of non-Gaussianity (NG) on the Cosmic Microwave Background (CMB) anisotropies. We first show how to set the initial conditions at second-order for the (gauge invariant) CMB anisotropies when some primordial NG is present. However, there are many sources of NG in CMB anisotropies, beyond the primordial one, which can contaminate the primordial signal. We mainly focus on the NG generated from the post-inflationary evolution of the CMB anisotropies at second-order in perturbation theory at large and small angular scales, such as the ones generated at the recombination epoch. We show how to derive the equations to study the second-order CMB anisotropies and provide analytical computations to evaluate their contamination to primordial NG (complemented with numerical examples). We also offer a brief summary of other secondary effects. This review requires basic knowledge of the theory of cosmological perturbations at the linear level.

N. Bartolo; S. Matarrese; A. Riotto

2010-01-22T23:59:59.000Z

363

Phenol and phenolics from lignocellulosic biomass by catalytic microwave pyrolysis  

Science Conference Proceedings (OSTI)

Catalytic microwave pyrolysis of biomass using activated carbon was investigated to determine the effects of pyrolytic conditions on the yields of phenol and phenolics. The high concentrations of phenol (38.9%) and phenolics (66.9%) were obtained at the temperature of 589 K, catalyst-to-biomass ratio of 3:1 and retention time of 8 min. The increase of phenol and its derivatives compared to pyrolysis without catalysts has a close relationship with the decomposition of lignin under the performance of activated carbon. The concentration of esters was also increased using activated carbon as a catalyst. The high content of phenols obtained in this study can be used either directly as fuel after upgrading or as feedstock of biobased phenols for chemical industry.

Bu, Quan; Lei, Hanwu; Ren, Shoujie; Wang, Lu; Holladay, Johnathan E.; Zhang, Qin; Tang, Juming; Ruan, Roger

2011-07-01T23:59:59.000Z

364

Tests for Gaussianity of the MAXIMA-1 cosmic microwave backgroundmap  

SciTech Connect

Gaussianity of the cosmological perturbations is one of the key predictions of standard inflation, but it is violated by other models of structure formation such as cosmic defects. We present the first test of the Gaussianity of the cosmic microwave background (CMB) on subdegree angular scales, where deviations from Gaussianity are most likely to occur. We apply the methods of moments, cumulants, the Kolmogorov test, the chi (2) test, and Minkowski functionals in eigen, real, Wiener-filtered, and signal-whitened spaces, to the MAXIMA-1 CMB anisotropy data. We find that the data, which probe angular scales between 10 arcmin and 5 deg, are consistent with Gaussianity. These results show consistency with the standard inflation and place constraints on the existence of cosmic defects.

Wu, J.H.P.; Balbi, A.; Borrill, J.; Ferreira, P.G.; Hanany, S.; Jaffe, A.H.; Lee, A.T.; Rabii, B.; Richards, P.L.; Smoot, G.F.; Stompor,R.; Winant, C.D.

2001-04-14T23:59:59.000Z

365

Microwave impregnation of porous materials with thermal energy storage materials  

DOE Patents (OSTI)

A method for impregnating a porous, non-metallic construction material with a solid phase-change material is described. The phase-change material in finely divided form is spread onto the surface of the porous material, after which the porous material is exposed to microwave energy for a time sufficient to melt the phase-change material. The melted material is spontaneously absorbed into the pores of the porous material. A sealing chemical may also be included with the phase-change material (or applied subsequent to the phase-change material) to seal the surface of the porous material. Fire retardant chemicals may also be included with the phase-change materials. The treated construction materials are better able to absorb thermal energy and exhibit increased heat storage capacity.

Benson, D.K.; Burrows, R.W.

1992-12-31T23:59:59.000Z

366

Nonlinear microwave response of aluminum weak-link Josephson oscillators  

E-Print Network (OSTI)

We present the driven response at T=30mK of 6 GHz superconducting resonators constructed from capacitively-shunted three dimensional (3D) aluminum nanobridge superconducting quantum interference devices (nanoSQUIDs). We observe flux modulation of the resonant frequency in quantitative agreement with numerical calculation and characteristic of near-ideal short weak link junctions. Under strong microwave excitation, we observe stable bifurcation in devices with coupled quality factor (Q) ranging from ~30-3500. Near this bias point, parametric amplification with > 20dB gain, 40 MHz bandwidth, and near quantum-limited noise performance is observed. Our results indicate that 3D nanobridge junctions are attractive circuit elements to realize quantum bits.

E. M. Levenson-Falk; R. Vijay; I. Siddiqi

2011-01-24T23:59:59.000Z

367

Nonlinear microwave response of aluminum weak-link Josephson oscillators  

E-Print Network (OSTI)

We present the driven response at T=30mK of 6 GHz superconducting resonators constructed from capacitively-shunted three dimensional (3D) aluminum nanobridge superconducting quantum interference devices (nanoSQUIDs). We observe flux modulation of the resonant frequency in quantitative agreement with numerical calculation and characteristic of near-ideal short weak link junctions. Under strong microwave excitation, we observe stable bifurcation in devices with coupled quality factor (Q) ranging from ~30-3500. Near this bias point, parametric amplification with > 20dB gain, 40 MHz bandwidth, and near quantum-limited noise performance is observed. Our results indicate that 3D nanobridge junctions are attractive circuit elements to realize quantum bits.

Levenson-Falk, E M; Siddiqi, I

2011-01-01T23:59:59.000Z

368

Microwave impregnation of porous materials with thermal energy storage materials  

DOE Patents (OSTI)

A method for impregnating a porous, non-metallic construction material with a solid phase-change material is described. The phase-change material in finely divided form is spread onto the surface of the porous material, after which the porous material is exposed to microwave energy for a time sufficient to melt the phase-change material. The melted material is spontaneously absorbed into the pores of the porous material. A sealing chemical may also be included with the phase-change material (or applied subsequent to the phase-change material) to seal the surface of the porous material. Fire retardant chemicals may also be included with the phase-change materials. The treated construction materials are better able to absorb thermal energy and exhibit increased heat storage capacity.

Benson, D.K.; Burrows, R.W.

1993-04-13T23:59:59.000Z

369

Enhancement of accelerating field of microwave cavities by magnetic insulation  

Science Conference Proceedings (OSTI)

Limitations on the maximum achievable accelerating gradient of microwave cavities can strongly influence the performance, length, and cost of particle accelerators. Gradient limitations are widely believed to be initiated by electron emission from the cavity surfaces. Here, we show that the deleterious effects of field emission are effectively suppressed by applying a tangential magnetic field to the cavity walls. With the aid of numerical simulations we compute the field strength required to insulate an 805 MHz cavity and estimate the cavity's tolerances to typical experimental errors such as magnet misalignments and positioning errors. Then, we review an experimental program, currently under progress, to further study the concept. Finally, we report on two specific examples that illustrate the feasibility of magnetic insulation into prospective particle accelerator applications.

Stratakis, D.; Gallardo, J.; Palmer, R.B.

2011-04-15T23:59:59.000Z

370

Microwave impregnation of porous materials with thermal energy storage materials  

DOE Patents (OSTI)

A method for impregnating a porous, non-metallic construction material with a solid phase-change material is described. The phase-change material in finely divided form is spread onto the surface of the porous material, after which the porous material is exposed to microwave energy for a time sufficient to melt the phase-change material. The melted material is spontaneously absorbed into the pores of the porous material. A sealing chemical may also be included with the phase-change material (or applied subsequent to the phase-change material) to seal the surface of the porous material. Fire retardant chemicals may also be included with the phase-change materials. The treated construction materials are better able to absorb thermal energy and exhibit increased heat storage capacity.

Benson, David K. (Golden, CO); Burrows, Richard W. (Conifer, CO)

1993-01-01T23:59:59.000Z

371

Microwave and THz sensing using slab-pair-based metamaterials  

SciTech Connect

In this work the sensing capability of an artificial magnetic metamaterial based on pairs of metal slabs is demonstrated, both theoretically and experimentally, in the microwave regime. The demonstration is based on transmission measurements and simulations monitoring the shift of the magnetic resonance frequency as one changes a thin dielectric layer placed between the slabs of the pairs. Strong dependence of the magnetic resonance frequency on both the permittivity and the thickness of the dielectric layer under detection was observed. The sensitivity to the dielectrics? permittivity (?) is larger for dielectrics of low ? values, which makes the approach suitable for sensing organic materials also in the THz regime. The capability of our approach for THz sensing is also demonstrated through simulations.

Kenanakis, G.; Shen, Nianhai; Mavidis, Ch.; Katsarakis, N.; Kafesaki, M.; Soukoulis, Costas M.; Economou, E.N.

2012-10-15T23:59:59.000Z

372

New Energy Efficiency Standards for Microwave Ovens to Save Consumers on  

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

Energy Efficiency Standards for Microwave Ovens to Save Energy Efficiency Standards for Microwave Ovens to Save Consumers on Energy Bills New Energy Efficiency Standards for Microwave Ovens to Save Consumers on Energy Bills May 31, 2013 - 3:26pm Addthis NEWS MEDIA CONTACT (202) 586-4940 WASHINGTON - U.S. Energy Secretary Ernest Moniz announced today that the Energy Department has finalized new energy efficiency standards for microwave ovens that will save consumers nearly $3 billion on their energy bills through 2030. Over the next 30 years, it will dramatically reduce harmful carbon pollution, equivalent to taking over 12 million new cars off the road for one year. "Appliance efficiency standards represent a huge opportunity to help families save money by saving energy, while still delivering high quality

373

Uncertainties in Microwave Properties of Frozen Precipitation: Implications for Remote Sensing and Data Assimilation  

Science Conference Proceedings (OSTI)

A combined active/passive modeling system that converts CloudSat observations to simulated microwave brightness temperatures (TB) is used to assess different ice particle models under precipitating conditions. Simulation results indicate that ...

Mark S. Kulie; Ralf Bennartz; Thomas J. Greenwald; Yong Chen; Fuzhong Weng

2010-11-01T23:59:59.000Z

374

Distribution of Tropospheric Water Vapor in Clear and Cloudy Conditions from Microwave Radiometric Profiling  

Science Conference Proceedings (OSTI)

A dataset gathered over 369 days in various midlatitude sites with a 12-frequency microwave radiometric profiler is used to analyze the statistical distribution of tropospheric water vapor content (WVC) in clear and cloudy conditions. The WVC ...

Alia Iassamen; Henri Sauvageot; Nicolas Jeannin; Soltane Ameur

2009-03-01T23:59:59.000Z

375

The influence of frequency shifts in microwave sounder channels on NWP analyses and forecasts  

Science Conference Proceedings (OSTI)

The sensitivity of Numerical Weather Prediction (NWP) analysis and forecast accuracies with respect to frequency shift in microwave passbands is quantified through a series of observing system experiments using the ECMWF integrated assimilation ...

Carole Peubey; William Bell

376

Multichannel Microwave Radiometric Observations at Saipan during the 1990 Tropical Cyclone Motion Experiment  

Science Conference Proceedings (OSTI)

To estimate mesoscale variations in integrated water vapor, cloud liquid water, and temperature in a tropical region, multiwavelength microwave radiometric observations were carried out over a seven-week period on the island of Saipan during the ...

Yong Han; Dennis W. Thomson

1994-02-01T23:59:59.000Z

377

Characterization of Errors in a Coupled Snow HydrologyMicrowave Emission Model  

Science Conference Proceedings (OSTI)

Traditional approaches to the direct estimation of snow properties from passive microwave remote sensing have been plagued by limitations such as the tendency of estimates to saturate for moderately deep snowpacks and the effects of mixed land ...

Konstantinos M. Andreadis; Ding Liang; Leung Tsang; Dennis P. Lettenmaier; Edward G. Josberger

2008-02-01T23:59:59.000Z

378

Neural networks and separation of cosmic microwave background and astrophysical signals in sky maps  

E-Print Network (OSTI)

Maps produced by large area surveys aimed at imaging primordial fluctuations of the Cosmic Microwave Background (CMB) contain a linear mixture of signals by several astrophysical and cosmological sources (Galactic synchrotron,

C. Baccigalupi; L. Bedini; C. Burigana; G. De Zotti; A. Farusi; D. Maino; M. Maris; F. Perrotta; E. Salerno; L. Toffolatti; A. Tonazzini

2000-01-01T23:59:59.000Z

379

Reducing Wave-Induced Microwave Water Level Measurement Error with a Least Squares Designed Digital Filter  

Science Conference Proceedings (OSTI)

A microwave water level sensor, the Design Analysis Model H-3611i, will soon enter service at tide stations operated by the U.S. National Oceanic and Atmospheric Administration, Center for Operational Oceanographic Products and Services (CO-OPS), ...

John D. Boon

380

Coupled microwave ECR and radio-frequency plasma source for plasma processing  

DOE Patents (OSTI)

In a dual plasma device, the first plasma is a microwave discharge having its own means of plasma initiation and control. The microwave discharge operates at electron cyclotron resonance (ECR), and generates a uniform plasma over a large area of about 1000 cm.sup.2 at low pressures below 0.1 mtorr. The ECR microwave plasma initiates the second plasma, a radio frequency (RF) plasma maintained between parallel plates. The ECR microwave plasma acts as a source of charged particles, supplying copious amounts of a desired charged excited species in uniform manner to the RF plasma. The parallel plate portion of the apparatus includes a magnetic filter with static magnetic field structure that aids the formation of ECR zones in the two plasma regions, and also assists in the RF plasma also operating at electron cyclotron resonance.

Tsai, Chin-Chi (Oak Ridge, TN); Haselton, Halsey H. (Knoxville, TN)

1994-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "dayton hilltop microwave" 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

Classification of Tropical Oceanic Precipitation using High-Altitude Aircraft Microwave and Electric Field Measurements  

Science Conference Proceedings (OSTI)

During the 1998 and 2001 hurricane seasons of the western Atlantic Ocean and Gulf of Mexico, the Advanced Microwave Precipitation Radiometer (AMPR), the ER-2 Doppler (EDOP) radar, and the Lightning Instrument Package (LIP) were flown aboard the ...

Robbie E. Hood; Daniel J. Cecil; Frank J. LaFontaine; Richard J. Blakeslee; Douglas M. Mach; Gerald M. Heymsfield; Frank D. Marks Jr.; Edward J. Zipser; Michael Goodman

2006-01-01T23:59:59.000Z

382

REFAME: Rain Estimation Using Forward-Adjusted Advection of Microwave Estimates  

Science Conference Proceedings (OSTI)

A new multiplatform multisensor satellite rainfall estimation technique is proposed in which sequences of Geostationary Earth Orbit infrared (GEO-IR) images are used to advect microwave (MW)-derived precipitation estimates along cloud motion ...

Ali Behrangi; Bisher Imam; Kuolin Hsu; Soroosh Sorooshian; Timothy J. Bellerby; George J. Huffman

2010-12-01T23:59:59.000Z

383

High-Resolution Passive Microwave Observations of Convective Systems over the Tropical Pacific Ocean  

Science Conference Proceedings (OSTI)

This paper presents high-resolution passive microwave measurements obtained in the western Pacific warm pool region. These measurements represent the most comprehensive such observations of convection over the tropical oceans to date, and were ...

Gary McGaughey; Edward J. Zipser; Roy W. Spencer; Robbie E. Hood

1996-11-01T23:59:59.000Z

384

Tropical Cyclone Wind Retrievals from the Advanced Microwave Sounding Unit: Application to Surface Wind Analysis  

Science Conference Proceedings (OSTI)

Horizontal winds at 850 hPa from tropical cyclones retrieved using the nonlinear balance equation, where the mass field was determined from Advanced Microwave Sounding Unit (AMSU) temperature soundings, are compared with the surface wind fields ...

Kotaro Bessho; Mark DeMaria; John A. Knaff

2006-03-01T23:59:59.000Z

385

Difficulties in Obtaining Reliable Temperature Trends: Reconciling the Surface and Satellite Microwave Sounding Unit Records  

Science Conference Proceedings (OSTI)

A chronic difficulty in obtaining reliable climate records from satellites has been changes in instruments, platforms, equator-crossing times, and algorithms. The microwave sounding unit (MSU) tropospheric temperature record has overcome some of ...

James W. Hurrell; Kevin E. Trenberth

1998-05-01T23:59:59.000Z

386

Standoff Detection of Chemicals Using Rydberg Fingerprint Spectroscopy and Microwave Rayleigh Scattering  

The invention relates to a method for standoff trace chemical sensing. The basis forthe technique is Rydberg Fingerprint Spectroscopy followed by microwave-baseddetection.In Rydberg Fingerprint Spectroscopy, target molecules are first excited to ...

387

Some Tropical Rainfall Rate Characteristics at Ile-Ife for Microwave and Millimeter Wave Applications  

Science Conference Proceedings (OSTI)

Some characteristics of rainfall rate relevant to the evaluation of microwave attenuation due to tropical rainfall are presented, making use of rain rate data collected with a rapid response raingage at Ile-Ife between September 1979 and December ...

G. O. Ajayi; E. B. C. Ofoche

1984-04-01T23:59:59.000Z

388

Remote Sensing of Precipitable Water over the Oceans from Nimbus 7 Microwave Measurements  

Science Conference Proceedings (OSTI)

Nimbus 7 Scanning Multichannel Microwave Radiometer (SMMR) brightness temperature measurements in the 21 and 18 GHz channels are used to sense the precipitable water in the atmosphere over oceans. The difference in the brightness temperature (T21 ...

C. Prabhakara; H. D. Chang; A. T. C. Chang

1982-01-01T23:59:59.000Z

389

MIMIC: A New Approach to Visualizing Satellite Microwave Imagery of Tropical Cyclones  

Science Conference Proceedings (OSTI)

Satellite-based passive microwave imagery of tropical cyclones (TCs) is an invaluable resource for assessing the organization and evolution of convective structures in TCs when often no other comparable observations exist. However, the current ...

Anthony J. Wimmers; Christopher S. Velden

2007-08-01T23:59:59.000Z

390

The Sensitivity of Microwave Remote Sensing Observations of Precipitation to Ice Particle Size Distributions  

Science Conference Proceedings (OSTI)

This study investigates the effect of variable size distribution and density of precipitation ice particles on microwave brightness temperatures. For this purpose, a set of self-consistent relationships among rain rate, size parameters of an ...

Ralf Bennartz; Grant W. Petty

2001-03-01T23:59:59.000Z

391

Refractivity estimation from radar clutter by sequential importance sampling with a Markov model for microwave propagation  

Science Conference Proceedings (OSTI)

This paper addresses the problem of estimating range-varying parameters of the height-dependent index of refraction over the sea surface in order to predict ducted microwave propagation loss. Refractivity estimation is performed using a Markov model ...

S. Vasudevan; J. L. Krolik

2001-05-01T23:59:59.000Z

392

Combining Microwave Radiometer and Wind Profiler Radar Measurements for High-Resolution Atmospheric Humidity Profiling  

Science Conference Proceedings (OSTI)

A self-consistent remote sensing physical method to retrieve atmospheric humidity high-resolution profiles by synergetic use of a microwave radiometer profiler (MWRP) and wind profiler radar (WPR) is illustrated. The proposed technique is based ...

Laura Bianco; Domenico Cimini; Frank S. Marzano; Randolph Ware

2005-07-01T23:59:59.000Z

393

Tropical Cyclone Outer Surface Winds Derived from Satellite Microwave Sounder Data  

Science Conference Proceedings (OSTI)

Upper tropospheric temperature anomalies are detected in brightness temperature data from the Nimbus 6 Scanning Microwave Spectrometer (SCAMS). Brightness temperature anomalies are related to surface pressure anomalies through the radiative ...

Stanley Q. Kidder; William M. Gray; Thomas H. Vonder Haar

1980-02-01T23:59:59.000Z

394

Hurricane Surface Wind Measurements from an Operational Stepped Frequency Microwave Radiometer  

Science Conference Proceedings (OSTI)

For the first time, the NOAA/Aircraft Operations Center (AOC) flew stepped frequency microwave radiometers (SFMRs) on both WP-3D research aircraft for operational hurricane surface wind speed measurement in 2005. An unprecedented number of major ...

Eric W. Uhlhorn; Peter G. Black; James L. Franklin; Mark Goodberlet; James Carswell; Alan S. Goldstein

2007-09-01T23:59:59.000Z

395

Inside Volcanic Clouds: Remote Sensing of Ash Plumes Using Microwave Weather Radars  

Science Conference Proceedings (OSTI)

Microphysical and dynamical features of volcanic tephra due to Plinian and sub-Plinian eruptions can be quantitatively monitored by using ground-based microwave weather radars. The methodological rationale and unique potential of this remote-sensing ...

Frank S. Marzano; Errico Picciotti; Mario Montopoli; Gianfranco Vulpiani

2013-10-01T23:59:59.000Z

396

Comparison of Tropospheric Temperature Derived from the Microwave Sounding Unit and the National Meteorological Center Analysis  

Science Conference Proceedings (OSTI)

The Microwave Sounding Units (MSU) aboard the NOAA series of polar-orbiting satellites (TIROS-N to NOAA-12) have provided stable and precise measurements of vertically integrated atmospheric temperature since December 1978. Comparisons are made ...

Alan N. Basist; Chester F. Ropelewski; Norman C. Grody

1995-04-01T23:59:59.000Z

397

Microwave Simulations of a Tropical Rainfall System with a Three-Dimensional Cloud Model  

Science Conference Proceedings (OSTI)

A three-dimensional cloud model-microwave radiative transfer model combination is used to study the relations among the precipitation and other microphysical characteristics of a tropical oceanic squall line and the upwelling radiance at ...

Robert F. Adler; Hwa-Young M. Yeh; N. Prasad; Wei-Kuo Tao; Joanne Simpson

1991-07-01T23:59:59.000Z

398

A Simple Method for Testing Brightness Temperatures from Satellite Microwave Radiometers  

Science Conference Proceedings (OSTI)

A method is proposed for testing microwave measurements from spaceborne sensors by computing collocated simulated brightness temperatures from the ECMWF numerical weather meteorological model using an atmospheric radiative transfer model and the ...

J-Y. Lojou; R. Bernard; L. Eymard

1994-04-01T23:59:59.000Z

399

Optimizing Performance of a Microwave Salinity Mapper: STARRS L-Band Radiometer Enhancements  

Science Conference Proceedings (OSTI)

Airborne microwave radiometers for salinity remote sensing have advanced to a point where operational surveys can be conducted over the inner continental shelf to observe the evolution of freshwater plumes emanating from rivers and estuaries. To ...

Derek M. Burrage; Joel C. Wesson; Mark A. Goodberlet; Jerry L. Miller

2008-05-01T23:59:59.000Z

400

Evaluation of Coincident Passive Microwave Rainfall Estimates Using TRMM PR and Ground Measurements as References  

Science Conference Proceedings (OSTI)

This study compares instantaneous rainfall estimates provided by the current generation of retrieval algorithms for passive microwave sensors using retrievals from the Tropical Rainfall Measuring Mission (TRMM) precipitation radar (PR) and merged ...

Xin Lin; Arthur Y. Hou

2008-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "dayton hilltop microwave" 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

Atmospheric Latent Heating Distributions in the Tropics Derived from Satellite Passive Microwave Radiometer Measurements  

Science Conference Proceedings (OSTI)

A method for the remote sensing of three-dimensional latent heating distributions in precipitating tropical weather systems from satellite passive microwave observations is presented. In this method, cloud model simulated hydrometeor/latent ...

William S. Olson; Christian D. Kummerow; Ye Hong; Wei-Kuo Tao

1999-06-01T23:59:59.000Z

402

Retrieval of Precipitation Profiles from Multiresolution, Multifrequency Active and Passive Microwave Observations  

Science Conference Proceedings (OSTI)

In this study, a technique for estimating vertical profiles of precipitation from multifrequency, multiresolution active and passive microwave observations is investigated. The technique is applicable to the Tropical Rainfall Measuring Mission (...

Mircea Grecu; William S. Olson; Emmanouil N. Anagnostou

2004-04-01T23:59:59.000Z

403

Toward a Global Climatology of Severe Hailstorms as Estimated by Satellite Passive Microwave Imagers  

Science Conference Proceedings (OSTI)

An 8-yr climatology of storms producing large hail is estimated from satellite measurements using Advanced Microwave Scanning Radiometer for Earth Observing System (AMSR-E). This allows a unique, consistent comparison between regions that cannot ...

Daniel J. Cecil; Clay B. Blankenship

2012-01-01T23:59:59.000Z

404

Satellite Passive Microwave Rain Rate Measurement over Croplands during Spring, Summer and Fall  

Science Conference Proceedings (OSTI)

Rain rate algorithms for spring, summer and fall that have been developed from comparisons between the brightness temperatures measured by the Nimbus-7 Scanning Multichannel Microwave Radiometer (SMMR) and rain rates derived from operational WSR-...

Roy W. Spencer

1984-11-01T23:59:59.000Z

405

The Effects of Rainfall Inhomogeneity on Climate Variability of Rainfall Estimated from Passive Microwave Sensors  

Science Conference Proceedings (OSTI)

Passive microwave rainfall estimates that exploit the emission signal of raindrops in the atmosphere are sensitive to the inhomogeneity of rainfall within the satellite field of view (FOV). In particular, the concave nature of the brightness ...

Christian Kummerow; Philip Poyner; Wesley Berg; Jody Thomas-Stahle

2004-04-01T23:59:59.000Z

406

Implications of Representing Snowpack Stratigraphy for the Assimilation of Passive Microwave Satellite Observations  

Science Conference Proceedings (OSTI)

Under certain conditions, passive microwave satellite observations can be used to estimate snow water equivalent (SWE) across large areas, either through direct retrieval or data assimilation. However, the layered character of snowpacks increases ...

Konstantinos M. Andreadis; Dennis P. Lettenmaier

2012-10-01T23:59:59.000Z

407

A Combined Satellite Infrared and Passive Microwave Technique for Estimation of Small-Scale Rainfall  

Science Conference Proceedings (OSTI)

There are numerous applications in climatology and hydrology where accurate information at scales smaller than the existing monthly/2.5 products would be invaluable. Here, a new microwave/infrared rainfall algorithm is introduced that combines ...

Martin C. Todd; Chris Kidd; Dominic Kniveton; Tim J. Bellerby

2001-05-01T23:59:59.000Z

408

Measuring the Global Distribution of Intense Convection over Land with Passive Microwave Radiometry  

Science Conference Proceedings (OSTI)

The global distribution of intense convective activity over land is shown to be measurable with satellite passive-microwave methods through a comparison of an empirical rain rate algorithm with a climatology of thunderstorm days for the months of ...

Roy W. Spencer; David A. Santek

1985-08-01T23:59:59.000Z

409

Continental Passive Microwave-Based Rainfall Estimation Algorithm: Application to the Amazon Basin  

Science Conference Proceedings (OSTI)

This paper presents a new statistical algorithm to estimate rainfall over the Amazon Basin region using the Tropical Rainfall Measuring Mission (TRMM) Microwave Imager (TMI). The algorithm relies on empirical relationships derived for different ...

Thiago S. Biscaro; Carlos A. Morales

2008-07-01T23:59:59.000Z

410

Passive Microwave Remote Sensing of Rainfall with SSM/I: Algorithm Development and Implementation  

Science Conference Proceedings (OSTI)

A physically based algorithm sensitive to emission and scattering is used to estimate rainfall using the Special Sensor Microwave/Imager (SSM/I). The algorithm is derived from radiative transfer calculations through an atmospheric cloud model ...

James G. Ferriday; Susan K. Avery

1994-12-01T23:59:59.000Z

411

Tropical Cyclone Rainfall Characteristics as Determined from a Satellite Passive Microwave Radiometer  

Science Conference Proceedings (OSTI)

Data from the Nimbus-5 F-Electrically Scanning Microwave Radiometer (ESMR-5) have been used to calculate latent heat release (LHR) and other rainfall parameters for over 70 satelite observations of 21 tropical cyclones during 1973, 1974 and 1975 ...

E. B. Rodgers; R. F. Adler

1981-03-01T23:59:59.000Z

412

Use of Passive Microwave Observations in a Radar Rainfall-Profiling Algorithm  

Science Conference Proceedings (OSTI)

A physically based methodology to incorporate passive microwave observations in a rain-profiling algorithm is developed for space- or airborne radars at frequencies exhibiting attenuation. The rain-profiling algorithm deploys a formulation for ...

Mircea Grecu; Emmanouil N. Anagnostou

2002-07-01T23:59:59.000Z

413

Using a Microwave Emission Model to Estimate Soil Moisture from ESTAR Observations during SGP99  

Science Conference Proceedings (OSTI)

The 1999 Southern Great Plains Hydrology Experiment (SGP99) provides comprehensive datasets for evaluating microwave remote sensing of soil moisture algorithms that involve complex physical properties of soils and vegetation. The Land Surface ...

Huilin Gao; Eric F. Wood; Matthias Drusch; Wade Crow; Thomas J. Jackson

2004-02-01T23:59:59.000Z

414

Impacts of A Priori Databases Using Six WRF Microphysics Schemes on Passive Microwave Rainfall Retrievals  

Science Conference Proceedings (OSTI)

Physically-based rainfall retrievals from passive microwave sensors often make use of cloud resolving models (CRMs) to build a-priori databases of potential rain structures. Each CRM, however, has its own cloud microphysics assumptions. Hence, ...

Ju-Hye Kim; Dong-Bin Shin; Christian Kummerow

415

Bayesian Retrieval of Complete Posterior PDFs of Oceanic Rain Rate from Microwave Observations  

Science Conference Proceedings (OSTI)

A new Bayesian algorithm for retrieving surface rain rate from Tropical Rainfall Measuring Mission (TRMM) Microwave Imager (TMI) over the ocean is presented, along with validations against estimates from the TRMM Precipitation Radar (PR). The ...

J. Christine Chiu; Grant W. Petty

2006-08-01T23:59:59.000Z

416

Improved Passive Microwave Retrievals of Rain Rate Over Land and Ocean. 1. Algorithm description  

Science Conference Proceedings (OSTI)

A new approach to passive microwave retrievals of precipitation is described that relies on an objective dimensional reduction procedure to filter, normalize, and decorrelate geophysical background noise while retaining the majority of radiometric ...

Grant W. Petty; Ke Li

417

Created March 2009 Microwave ovens are located throughout Swinburne University campuses in both staff & students  

E-Print Network (OSTI)

as when sealed containers are heated they may explode and damage the oven rendering it unsafe. · Use glass containers designed for microwaves to cook high-fat foods, as additives from plastic are more likely

Liley, David

418

Improvement of Advanced Microwave Sounding Unit Tropical Cyclone Intensity and Size Estimation Algorithms  

Science Conference Proceedings (OSTI)

Previous work, in which Advanced Microwave Sounding Unit (AMSU) data from the Atlantic Ocean and east Pacific Ocean basins during 19992001 were used to provide objective estimates of 1-min maximum sustained surface winds, minimum sea level ...

Julie L. Demuth; Mark DeMaria; John A. Knaff

2006-11-01T23:59:59.000Z

419

Error Structure and Atmospheric Temperature Trends in Observations from the Microwave Sounding Unit  

Science Conference Proceedings (OSTI)

The Microwave Sounding Unit (MSU) onboard the National Oceanic and Atmospheric Administration polar-orbiting satellites measures the atmospheric temperature from the surface to the lower stratosphere under all weather conditions, excluding ...

Cheng-Zhi Zou; Mei Gao; Mitchell D. Goldberg

2009-04-01T23:59:59.000Z

420

Hydrologic data assimilation of multi-resolution microwave radiometer and radar measurements using ensemble smoothing  

E-Print Network (OSTI)

Previously, the ensemble Kalman filter (EnKF) has been used to estimate soil moisture and related fluxes by merging noisy low frequency microwave observations with forecasts from a conventional though uncertain land surface ...

Dunne, Susan Catherine

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "dayton hilltop microwave" 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

Initial assessment: electromagnetic compatibility aspects of proposed SPS Microwave Power Transmission System (MPTS) operations  

DOE Green Energy (OSTI)

An analysis of major concerns with regard to the effects on radio and electronic systems by the proposed Microwave Power Transmission System for transmitting power from a satellite solar power station to earth is presented. (LCL)

Not Available

1978-02-01T23:59:59.000Z

422

Electromagnetic and Heat Transfer Modeling of Microwave Heating in Domestic Ovens.  

E-Print Network (OSTI)

??Microwave (MW) ovens are used extensively for heating a variety of not-ready-to-eat food products. It is vital to achieve target temperature uniformly throughout the food (more)

Pitchai, Krishnamoorthy

2011-01-01T23:59:59.000Z

423

Modeling Infrared and Combination Infrared-Microwave Heating of Foods in an Oven .  

E-Print Network (OSTI)

??A quantitative, model-based understanding of heat exchange in infrared and combined infrared-microwave heating of food inside an oven is developed. The research is divided into (more)

Frangipani Almeida, Marialuci

2004-01-01T23:59:59.000Z

424

Modelling Microwave Plasmas for Deposition Purposes : Exploring the Freedom in Space and Chemistry  

E-Print Network (OSTI)

those in microwave ovens and indeed the Solar 1000 was so constructed. The bulb was rotated the successful application of models of industrial interest" [9]. A secondary goal of this work is to address

Eindhoven, Technische Universiteit

425

Identification of Atmospheric Fronts over the Ocean with Microwave Measurements of Water Vapor and Rain  

Science Conference Proceedings (OSTI)

This Paper describes some basic research techniques and algorithms developed to diagnose fronts in cyclonic storms over the ocean with data from satellite-borne microwave radiometers. The need for this research stems from the limited availability ...

Kristina B. Kanaros; Iffekhar Bhatti; Llynn A. Mcmurdie; Grant W. Petty

1989-12-01T23:59:59.000Z

426

The Advantages and Disadvantages of Statistically DerivedEmpirically Calibrated Passive Microwave Algorithms for Rainfall Estimation  

Science Conference Proceedings (OSTI)

This paper reviews the basis of passive microwave algorithms that derive rainfall rates directly from relationships between brightness temperatures and rainfall rates established by statistical relationships and empirical calibration. The ...

C. Kidd; D. Kniveton; E. C. Barrett

1998-05-01T23:59:59.000Z

427

Microwave Properties of Ice-Phase Hydrometeors for Radar and Radiometers: Sensitivity to Model Assumptions  

Science Conference Proceedings (OSTI)

A simplified framework is presented for assessing the qualitative sensitivities of computed microwave properties, satellite brightness temperatures, and radar reflectivities to assumptions concerning the physical properties of ice-phase ...

Benjamin T. Johnson; Grant W. Petty; Gail Skofronick-Jackson

2012-12-01T23:59:59.000Z

428

Retrieval of Ice Cloud Parameters Using the Advanced Microwave Sounding Unit  

Science Conference Proceedings (OSTI)

An algorithm is developed to derive cloud ice water path (IWP) and ice particle effective diameters De from the advanced microwave sounding unit (AMSU) measurements. In the algorithm, both IWP and De are related to the ice particle scattering ...

Limin Zhao; Fuzhong Weng

2002-04-01T23:59:59.000Z

429

A Bias in the Midtropospheric Channel Warm Target Factor on the NOAA-9 Microwave Sounding Unit  

Science Conference Proceedings (OSTI)

The University of Alabama at Huntsville (UAH), Remote Sensing Systems (RSS), and the National Oceanic and Atmospheric Administration (NOAA) have constructed long-term temperature records for deep atmospheric layers using satellite Microwave ...

Stephen Po-Chedley; Qiang Fu

2012-05-01T23:59:59.000Z

430

Satellite Analysis of Tropical Cyclones Using the Advanced Microwave Sounding Unit (AMSU)  

Science Conference Proceedings (OSTI)

The first Advanced Microwave Sounding Unit (AMSU) was launched aboard the NOAA15 satellite on 13 May 1998. The AMSU is well suited for the observation of tropical cyclones because its measurements are not significantly affected by the ice clouds ...

Stanley Q. Kidder; Mitchell D. Goldberg; Raymond M. Zehr; Mark DeMaria; James F. W. Purdom; Christopher S. Velden; Norman C. Grody; Sheldon J. Kusselson

2000-06-01T23:59:59.000Z

431

The Analysis of Typhoon Structures Using Advanced Microwave Sounding Unit Data and Its Application to Prediction  

Science Conference Proceedings (OSTI)

In this study, the Advanced Microwave Sounding Unit (AMSU) data are used to retrieve the temperature and velocity fields of typhoons and assimilate them with the three-dimensional variational data assimilation (3DVAR) routines for uses in ...

Chien-Ben Chou; Ching-Yuang Huang; Huei-Ping Huang; Kung-Hwa Wang; Tien-Chiang Yeh

2008-05-01T23:59:59.000Z

432

Using X-ray mammograms to assist in microwave breast image interpretation  

Science Conference Proceedings (OSTI)

Current clinical breast imaging modalities include ultrasound, magnetic resonance (MR) imaging, and the ubiquitous X-ray mammography. Microwave imaging, which takes advantage of differing electromagnetic properties to obtain image contrast, shows potential ...

Charlotte Curtis; Richard Frayne; Elise Fear

2012-01-01T23:59:59.000Z

433

Special Sensor Microwave Imager (SSM/I) Intersensor Calibration Using a Simultaneous Conical Overpass Technique  

Science Conference Proceedings (OSTI)

A new intersensor calibration scheme is developed for the Defense Meteorological Satellite Program Special Sensor Microwave Imager (SSM/I) to correct its scan-angle-dependent bias, the radar calibration beacon interference on the F-15 satellite, ...

Song Yang; Fuzhong Weng; Banghua Yan; Ninghai Sun; Mitch Goldberg

2011-01-01T23:59:59.000Z

434

High-Resolution Imaging of Rain Systems with the Advanced Microwave Precipitation Radiometer  

Science Conference Proceedings (OSTI)

An Advanced Microwave Precipitation Radiometer (AMPR) has been developed and flown in the NASA ER-2 high-altitude aircraft for imaging various atmospheric and surface processes, primarily the internal structure of rain clouds. The AMPR is a ...

Roy W. Spencer; Robbie E. Hood; Frank J. Lafontaine; Eric A. Smith; Robert Platt; Joe Galliano; Vanessa L. Griffin; Elena Lobl

1994-08-01T23:59:59.000Z

435

Coupled microwave ECR and radio-frequency plasma source for plasma processing  

DOE Patents (OSTI)

In a dual plasma device, the first plasma is a microwave discharge having its own means of plasma initiation and control. The microwave discharge operates at electron cyclotron resonance (ECR), and generates a uniform plasma over a large area of about 1000 cm[sup 2] at low pressures below 0.1 mtorr. The ECR microwave plasma initiates the second plasma, a radio frequency (RF) plasma maintained between parallel plates. The ECR microwave plasma acts as a source of charged particles, supplying copious amounts of a desired charged excited species in uniform manner to the RF plasma. The parallel plate portion of the apparatus includes a magnetic filter with static magnetic field structure that aids the formation of ECR zones in the two plasma regions, and also assists in the RF plasma also operating at electron cyclotron resonance. 4 figures.

Tsai, C.C.; Haselton, H.H.

1994-03-08T23:59:59.000Z

436

Microwave Radiative Transfer through Clouds Composed of Realistically Shaped Ice Crystals. Part I. Single Scattering Properties  

Science Conference Proceedings (OSTI)

This paper presents the results of a detailed study of the microwave single scattering properties of ice crystals expected in cirrus clouds. The discrete dipole approximation is used to compute scattering quantities of particles ranging in size ...

K. Franklin Evans; Graeme L. Stephens

1995-06-01T23:59:59.000Z

437

Aircraft Observations of the Vertical Structure of Stratiform Precipitation Relevant to Microwave Radiative Transfer  

Science Conference Proceedings (OSTI)

The retrieval of rainfall intensity over the oceans from passive microwave observations is based on a radiative transfer model. Direct rainfall observations of oceanic rainfall are virtually nonexistent making validation of the retrievals ...

A. T. C. Chang; A. Barnes; M. Glass; R. Kakar; T. T. Wilheit

1993-06-01T23:59:59.000Z

438

Estimation of Area-Averaged Rainfall over Tropical Oceans from Microwave Radiometry: A Single Channel Approach  

Science Conference Proceedings (OSTI)

This paper presents a new simple retrieval algorithm for estimating area-time averaged rain rates over tropical oceans by using single channel microwave measurements from satellites. The algorithm was tested by using the Nimbus-5 Electrically ...

Kyung-Sup Shin; Phil E. Riba; Gerald R. North

1990-10-01T23:59:59.000Z

439

A Technique for Deducing Wind Direction from Satellite Microwave Measurements of Wind Speed  

Science Conference Proceedings (OSTI)

A technique is presented to deduce wind direction from satellite microwave measurements of wind speed information. The technique, based on simple Ekman boundary layer dynamics, makes use of surface pressure fields routinely analyzed at the ...

Tsann-wang Yu

1987-09-01T23:59:59.000Z

440

Design and development of an airborne microwave radiometer for atmospheric sensing  

E-Print Network (OSTI)

Satellite-based passive microwave remote sensing is a valuable tool for global weather monitoring and prediction. This thesis presents the design and development of a low-cost airborne weather sensing instrument to ...

Scarito, Michael P

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "dayton hilltop microwave" 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.


441

Comparison of Rain Rates over the Ocean Derived from TRMM Microwave Imager and Precipitation Radar  

Science Conference Proceedings (OSTI)

Surface rain rates over the ocean derived from the Tropical Rainfall Measuring Mission (TRMM) Microwave Imager (TMI) and precipitation radar (PR) are compared and systematic differences between TMI-derived rain rates and PR-derived rain rates are ...

Junji Ikai; Kenji Nakamura

2003-12-01T23:59:59.000Z

442

Bayesian Estimation of Precipitation from Satellite Passive Microwave Observations Using Combined RadarRadiometer Retrievals  

Science Conference Proceedings (OSTI)

Precipitation estimation from satellite passive microwave radiometer observations is a problem that does not have a unique solution that is insensitive to errors in the input data. Traditionally, to make this problem well posed, a priori ...

Mircea Grecu; William S. Olson

2006-03-01T23:59:59.000Z

443

Heavy Thunderstorms Observed Over Land by the Nimbus 7 Scanning Multichannel Microwave Radiometer  

Science Conference Proceedings (OSTI)

In an examination of microwave data from the Nimbus 7 satellite, brightness temperatures were found that were much lower than those expected for the radiation emanating from rain-producing clouds. Every case of very cold brightness temperature ...

R. W. Spencer; W. S. Olson; Wu Rongzhang; D. W. Martin; J. A. Weinman; D. A. Santek

1983-06-01T23:59:59.000Z

444

Three-dimensional near-field microwave holography for tissue imaging  

Science Conference Proceedings (OSTI)

This paper reports the progress toward a fast and reliable microwave imaging setup for tissue imaging exploiting near-field holographic reconstruction. The setup consists of two wideband TEM horn antennas aligned along each other's boresight and performing ...

Reza K. Amineh; Ali Khalatpour; Haohan Xu; Yona Baskharoun; Natalia K. Nikolova

2012-01-01T23:59:59.000Z

445

Mobile Microwave Radiometer Observations: Spatial Characteristics of Supercooled Cloud Water and Cloud Seeding Implications  

Science Conference Proceedings (OSTI)

Previous studies of the spatial distribution of supercooled liquid water in winter storms over mountainous terrain were performed primarily with instrumented aircraft and to a lesser extent with scans from a stationary microwave radiometer. The ...

Arlen W. Huggins

1995-02-01T23:59:59.000Z

446

Microwave determination of location and speed of an object inside a pipe  

DOE Patents (OSTI)

Apparatus and method are described for measuring the location and speed of an object, such as instrumentation on a movable platform, disposed within a pipe, using continuous-wave, amplitude-modulated microwave radiation.

Sinha, Dipen N. (Los Alamos, NM)

2010-12-14T23:59:59.000Z

447

Methodology for Deriving Deep-Layer Mean Temperatures from Combined Satellite Infrared and Microwave Observations  

Science Conference Proceedings (OSTI)

Deep-layer mean temperatures from Microwave Sounding Unit (MSU) observations have been used by scientists to study trends and interannual variations of tropospheric and lower-stratospheric temperature. The spatial resolution of MSU deep-layer ...

Mitchell D. Goldberg; Larry M. McMillin

1999-01-01T23:59:59.000Z

448

Clip-on wireless wearable microwave sensor for ambulatory cardiac monitoring  

E-Print Network (OSTI)

We present a new type of non-contact sensor for use in ambulatory cardiac monitoring. The sensor operation is based on a microwave Doppler technique; however, instead of detecting the heart activity from a distance, the ...

Fletcher, Richard Ribon

449

Miniaturized hand held microwave interference scanning system for NDE of dielectric armor and armor systems  

Science Conference Proceedings (OSTI)

Inspection of ceramic-based armor has advanced through development of a microwave-based, portable, non-contact NDE system. Recently, this system was miniaturized and made wireless for maximum utility in field applications. The electronic components and functionality of the laboratory system are retained, with alternative means of position input for creation of scan images. Validation of the detection capability was recently demonstrated using specially fabricated surrogates and ballistic impact-damaged specimens. The microwave data results have been compared to data from laboratory-based microwave interferometry systems and digital x-ray imaging. The microwave interference scanning has been shown to reliably detect cracks, laminar features and material property variations. The authors present details of the system operation, descriptions of the test samples used and recent results obtained.

Schmidt, Karl F.; Little, Jack R. [Evisive, Inc., Baton Rouge, LA (United States); Ellingson, William A. [Argonne National Laboratory, Argonne, IL(United States); Meitzler, Thomas J. [US Army Research and Development Command Tank Automotive Research Development and Engineering Center, Warren, MI (United States); Green, William [US Army Research Laboratory, Aberdeen Proving Ground, MD (United States)

2011-06-23T23:59:59.000Z

450

The Signature of ENSO in Global Temperature and Precipitation Fields Derived from the Microwave Sounding Unit  

Science Conference Proceedings (OSTI)

Global temperature anomalies associated with ENSO are investigated, making use of a 13-year record of gridded temperature and precipitation data from the microwave sounding unit (MSU). The warm phase of the ENSO cycle during this period was ...

Elena Yulaeva; John M. Wallace

1994-11-01T23:59:59.000Z

451

The Air Microwave Yield (AMY) experiment - A laboratory measurement of the microwave emission from extensive air showers  

E-Print Network (OSTI)

The AMY experiment aims to measure the microwave bremsstrahlung radiation (MBR) emitted by air-showers secondary electrons accelerating in collisions with neutral molecules of the atmosphere. The measurements are performed using a beam of 510 MeV electrons at the Beam Test Facility (BTF) of Frascati INFN National Laboratories. The goal of the AMY experiment is to measure in laboratory conditions the yield and the spectrum of the GHz emission in the frequency range between 1 and 20 GHz. The final purpose is to characterise the process to be used in a next generation detectors of ultra-high energy cosmic rays. A description of the experimental setup and the first results are presented.

K. Louedec; J. Alvarez-Muiz; M. Blanco; M. Bohcov; B. Buonomo; G. Cataldi; M. R. Coluccia; P. Creti; I. De Mitri; C. Di Giulio; P. Facal San Luis; L. Foggetta; R. Gaor; D. Garcia-Fernandez; M. Iarlori; S. Le Coz; A. Letessier-Selvon; I. C. Mari?; D. Martello; G. Mazzitelli; M. Monasor; L. Perrone; R. Pesce; S. Petrera; P. Privitera; V. Rizi; G. Rodriguez Fernandez; F. Salamida; G. Salina; M. Settimo; P. Valente; J. R. Vazquez; V. Verzi; C. Williams

2013-10-17T23:59:59.000Z

452

Application of microwave energy for in-drum solidification of simulated precipitation sludge  

SciTech Connect

The application of microwave energy for in-container solidification of simulated transuranic contaminated precipitation sludges has been tested. Results indicate volume reductions to 83% are achievable by the continuous feeding of pre-dried sludge into a waste container while applying microwave energy. An economic evaluation was completed showing achievable volume and weight reductions to 87% compared with a current immobilization process for wet sludge. 7 refs., 15 figs., 16 tabs.

Petersen, R.D.; Johnson, A.J.; Swanson, S.D.; Thomas, R.L. (ed.)

1987-08-17T23:59:59.000Z

453

Microwave Thermal Hydrolysis Of Sewage Sludge As A Pretreatment Stage For Anaerobic Digestion  

Science Conference Proceedings (OSTI)

This article focuses on the effects of microwave thermal hydrolysis on sewage sludge anaerobic digestion. Volatile suspended solid (VSS) and COD solubilization of treated sludge were investigated. It was found that the microwave hydrolysis provided a rapid and efficient process to release organics from sludge. The increase of organic dissolution ratio was not obvious when holding time was over 5 min. The effect of the VSS solubilization was mainly dependent on temperature. The highest value of VSS dissolving ratio

W. Qiao; W. Wang; R. Xun

2008-01-01T23:59:59.000Z

454

Microwave applicator for in-drum processing of radioactive waste slurry  

DOE Patents (OSTI)

A microwave applicator for processing of radioactive waste slurry uses a waveguide network which splits an input microwave of TE[sub 10] rectangular mode to TE[sub 01] circular mode. A cylindrical body has four openings, each receiving 1/4 of the power input. The waveguide network includes a plurality of splitters to effect the 1/4 divisions of power. 4 figures.

White, T.L.

1994-06-28T23:59:59.000Z

455

SYSTEM PERFORMANCE AND EXPERIMENTS WITH THE 110 GHZ MICROWAVE INSTALLATION ON THE DIII-D TOKAMAK  

Science Conference Proceedings (OSTI)

A powerful microwave system operating at the second harmonic of the electron cyclotron frequency has been commissioned on the DIII-D tokamak. The primary mission of the microwave system is to permit current profile control leading to the improved performance of advanced tokamak operation in quasi-steady state. Initial performance tests and experiments on current drive both near and away from the tokamak axis and on transport have been performed.

J.M. LOHR; F.W. BAITY,JR.; G.C. BARBER; R.W. CALLIS; I. GORELOV; C.M. GREENFIELD; R.A. LEGG; T.C. LUCE; C.C. PETTY; D. PONCE; R. PRATER

2000-09-01T23:59:59.000Z

456

IMPROVED TUBULARS FOR BETTER ECONOMICS IN DEEP GAS WELL DRILLING USING MICROWAVE TECHNOLOGY  

Science Conference Proceedings (OSTI)

The main objective of the research program has been to improve the rate-of-penetration in deep hostile environments by improving the life cycle and performance of coiled-tubing, an important component of a deep well drilling system for oil and gas exploration, by utilizing the latest developments in the microwave materials technology. Originally, it was proposed to accomplish this by developing an efficient and economically viable continuous microwave process to sinter continuously formed/extruded steel powder for the manufacture of seamless coiled tubing and other tubular products. However, based on the results and faced with insurmountable difficulties in the extrusion and de-waxing processes, the approach of achieving the goals of the program has been slightly changed. In the continuation proposal an approach of microwave sintering combined with Cold Isostatic Press (CIP) and joining (by induction or microwave) is adopted. This process can be developed into a semi-continuous sintering process if the CIP can produce parts fast enough to match the microwave sintering rates. Originally, the entire program was spread over three phases with the following goals: Phase I: Demonstration of the feasibility concept of continuous microwave sintering process for tubular steel products. Phase II: Design, building and testing of a prototype microwave system which shall be combined with a continuous extruder for steel tubular objects. Phase III: Execution of the plan for commercialization of the technology by one of the industrial partners. However, since some of the goals of the phase I were not completed, an extension of nine months was granted and we continued extrusion experiments, designed and built semicontinuous microwave sintering unit.

Dinesh Agrawal; Paul Gigl; Mahlon Dennis; Roderic Stanley

2005-03-01T23:59:59.000Z

457

Charged electret deposition for the manipulation of high power microwave flashover delay times  

Science Conference Proceedings (OSTI)

A quasi-permanent charged electret is embedded into the radiation window of a high power microwave system. It was experimentally observed that the additional electrostatic field introduced by the electret alters the delay times associated with the development of plasma at the window surface, resulting from high power microwave excitation. The magnitudes of both the statistical and formative delay times are investigated in detail for different pressures. Experimental observations are related to calculated discharge parameters using known E/p dependent properties.

Stephens, J.; Beeson, S.; Dickens, J.; Neuber, A. [Center for Pulsed Power and Power Electronics, Texas Tech University, Lubbock, Texas 79409 (United States)

2012-11-15T23:59:59.000Z

458

Research Article Effect of Microwave Radiation on Enzymatic and Chemical Peptide Bond Synthesis on Solid Phase  

E-Print Network (OSTI)

Peptide bond synthesis was performed on PEGA beads under microwave radiations. Classical chemical coupling as well as thermolysin catalyzed synthesis was studied, and the effect of microwave radiations on reaction kinetics, beads integrity, and enzyme activity was assessed. Results demonstrate that microwave radiations can be profitably exploited to improve reaction kinetics in solid phase peptide synthesis when both chemical and biocatalytic strategies are used. Copyright 2009 Alessandra Basso et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The use of microwave (MW) heating has found successful applications in solid phase organic synthesis (SPOS) [17]. As far back as 1992, Wang described the use of a single-mode microwave as a heating source to accelerate the chemical coupling [8] of many amino acids. Reactions on SP often suffer from unsatisfactory reaction kinetics due to slow diffusion. Since microwave energy activates any molecule with dipole moment, a rapid heating at a molecular level is

Ra Basso; Loris Sinigoi; Lucia Gardossi; Sabine Flitsch

2009-01-01T23:59:59.000Z

459

Microwave-assisted low temperature synthesis of wurtzite ZnS quantum dots  

SciTech Connect

In this work we report, for the first time, on microwave assisted synthesis of wurtzite ZnS quantum dots (QDs) in controlled reaction at temperature as low as 150 Degree-Sign C. The synthesis can be done in different microwave absorbing solvents with multisource or single source precursors. The QDs are less than 3 nm in size as characterized by transmission electron microscopy (TEM) using selected area electron diffraction (SAED) patterns to confirm the wurtzite phase of ZnS QDs. The optical properties were investigated by UV-Vis absorption which shows blue shift in absorption compared to bulk wurtzite ZnS due to quantum confinement effects. The photoluminescence (PL) spectra of QDs reveal point defects related emission of ZnS QDs. - Graphical abstract: Microwave assisted synthesis of wurtzite ZnS quantum dots (QDs) have been achieved in controlled reaction at temperature as low as 150 Degree-Sign C. The synthesis was performed in different microwave absorbing solvents with multisource or single source precursors for very short reaction periods due to effective heating with microwaves. Highlights: Black-Right-Pointing-Pointer Wurtzite a high temperature phase of ZnS was synthesized at low temperature. Black-Right-Pointing-Pointer Low temperature synthesis was possible because of the use of microwave absorbing solvents. Black-Right-Pointing-Pointer Capping agent was used to control the size of Quantum Dots. Black-Right-Pointing-Pointer Two different systems were developed using single molecular precursor and multisource precursors.

Shahid, Robina, E-mail: rkhan@kth.se [Division of Functional Materials, Royal Institute of Technology (KTH), 16440, Kista, Stockholm (Sweden); Toprak, Muhammet S., E-mail: toprak@kth.se [Division of Functional Materials, Royal Institute of Technology (KTH), 16440, Kista, Stockholm (Sweden); Muhammed, Mamoun [Division of Functional Materials, Royal Institute of Technology (KTH), 16440, Kista, Stockholm (Sweden)

2012-03-15T23:59:59.000Z

460

Improved Tubulars for Better Economics in Deep Gas Well Drilling Using Microwave Technology  

Science Conference Proceedings (OSTI)

The main objective of the entire research program has been to improve the rate-of-penetration in deep hostile environments by improving the life cycle and performance of coiled-tubing, an important component of a deep well drilling system for oil and gas exploration, by utilizing the latest developments in the microwave materials technology. Based on the results of the Phase I and insurmountable difficulties faced in the extrusion and de-waxing processes, the approach of achieving the goals of the program was slightly changed in the Phase II in which an approach of microwave sintering combined with Cold Isostatic Press (CIP) and joining (by induction or microwave) has been adopted. This process can be developed into a semicontinuous sintering process if the CIP can produce parts fast enough to match the microwave sintering rates. The main objective of the Phase II research program is to demonstrate the potential to economically manufacture microwave processed coiled tubing with improved performance for extended useful life under hostile coiled tubing drilling conditions. After the completion of the Phase II, it is concluded that scale up and sintering of a thin wall common O.D. size tubing that is widely used in the market is still to be proved and further experimentation and refinement of the sintering process is needed in Phase III. Actual manufacturing capability of microwave sintered, industrial quality, full length tubing will most likely require several million dollars of investment.

Dinesh Agrawal

2006-09-30T23:59:59.000Z

Note: This page contains sample records for the topic "dayton hilltop microwave" 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.


461

Improved Tubulars for Better Economics in Deep Gas Well Drilling using Microwave Technology  

Science Conference Proceedings (OSTI)

The main objective of the entire research program has been to improve the rate-of-penetration in deep hostile environments by improving the life cycle and performance of coiled-tubing, an important component of a deep well drilling system for oil and gas exploration, by utilizing the latest developments in the microwave materials technology. Based on the results of the Phase I and insurmountable difficulties faced in the extrusion and de-waxing processes, the approach of achieving the goals of the program was slightly changed in the Phase II in which an approach of microwave sintering combined with Cold Isostatic Press (CIP) and joining (by induction or microwave) has been adopted. This process can be developed into a semicontinuous sintering process if the CIP can produce parts fast enough to match the microwave sintering rates. The main objective of the Phase II research program is to demonstrate the potential to economically manufacture microwave processed coiled tubing with improved performance for extended useful life under hostile coiled tubing drilling conditions. After the completion of the Phase II, it is concluded that scale up and sintering of a thin wall common O.D. size tubing that is widely used in the market is still to be proved and further experimentation and refinement of the sintering process is needed in Phase III. Actual manufacturing capability of microwave sintered, industrial quality, full length tubing will most likely require several million dollars of investment.

Dinesh Agrawal; Paul Gigl; Mark Hunt; Mahlon Dennis

2007-07-31T23:59:59.000Z

462

MICROWAVE QUASI-PERIODIC PULSATION WITH MILLISECOND BURSTS IN A SOLAR FLARE ON 2011 AUGUST 9  

SciTech Connect

A peculiar microwave quasi-periodic pulsation (QPP) accompanying a hard X-ray (HXR) QPP of about 20 s duration occurred just before the maximum of an X6.9 solar flare on 2011 August 9. The most interesting aspect is that the microwave QPP consists of millisecond timescale superfine structures. Each microwave QPP pulse is made up of clusters of millisecond spike bursts or narrowband type III bursts. There are three different frequency drift rates: the global frequency drift rate of the microwave QPP pulse group, the frequency drift rate of the microwave QPP pulse, and the frequency drift rate of individual millisecond spikes or type III bursts. The physical analysis indicates that the energetic electrons accelerating from a large-scale highly dynamic magnetic reconnecting current sheet above the flaring loop propagate downward, impact the flaring plasma loop, and produce HXR bursts. The tearing-mode (TM) oscillations in the current sheet modulate HXR emission and generate HXR QPP; the energetic electrons propagating downward produce Langmuir turbulence and plasma waves, resulting in plasma emission. The modulation of TM oscillation on the plasma emission in the current-carrying plasma loop may generate microwave QPP. The TM instability produces magnetic islands in the loop. Each X-point will be a small reconnection site and will accelerate the ambient electrons. These accelerated electrons impact the ambient plasma and trigger the millisecond spike clusters or the group of type III bursts. Possibly, each millisecond spike burst or type III burst is one of the elementary bursts (EBs). A large number of such EB clusters form an intense flaring microwave burst.

Tan Baolin; Tan Chengming, E-mail: bltan@nao.cas.cn [Key Laboratory of Solar Activity, National Astronomical Observatories of the Chinese Academy of Sciences, Datun Road A20, Chaoyang District, Beijing 100012 (China)

2012-04-10T23:59:59.000Z

463

Final Technical Report Microwave Assisted Electrolyte Cell for Primary Aluminum Production  

SciTech Connect

This research addresses the high priority research need for developing inert anode and wetted cathode technology, as defined in the Aluminum Industry Technology Roadmap and Inert Anode Roadmap, with the performance targets: a) significantly reducing the energy intensity of aluminum production, b) ultimately eliminating anode-related CO2 emissions, and c) reducing aluminum production costs. This research intended to develop a new electrometallurgical extraction technology by introducing microwave irradiation into the current electrolytic cells for primary aluminum production. This technology aimed at accelerating the alumina electrolysis reduction rate and lowering the aluminum production temperature, coupled with the uses of nickel based superalloy inert anode, nickel based superalloy wetted cathode, and modified salt electrolyte. Michigan Technological University, collaborating with Cober Electronic and Century Aluminum, conducted bench-scale research for evaluation of this technology. This research included three sub-topics: a) fluoride microwave absorption; b) microwave assisted electrolytic cell design and fabrication; and c) aluminum electrowinning tests using the microwave assisted electrolytic cell. This research concludes that the typically used fluoride compound for aluminum electrowinning is not a good microwave absorbing material at room temperature. However, it becomes an excellent microwave absorbing material above 550C. The electrowinning tests did not show benefit to introduce microwave irradiation into the electrolytic cell. The experiments revealed that the nickel-based superalloy is not suitable for use as a cathode material; although it wets with molten aluminum, it causes severe reaction with molten aluminum. In the anode experiments, the chosen superalloy did not meet corrosion resistance requirements. A nicked based alloy without iron content could be further investigated.

Xiaodi Huang; J.Y. Hwang

2007-04-18T23:59:59.000Z

464

Extracting cosmic microwave background polarization from satelliteastrophysical maps  

Science Conference Proceedings (OSTI)

We present the application of the fast independent component analysis (FASTICA) technique for blind component separation to polarized astrophysical emission. We study how the cosmic microwave background (CMB) polarized signal, consisting of E and B modes, can be extracted from maps affected by substantial contamination from diffuse Galactic foreground emission and instrumental noise. We implement Monte Carlo chains varying the CMB and noise realizations in order to assess the average capabilities of the algorithm and their variance. We perform the analysis of all-sky maps simulated according to the Planck satellite capabilities, modeling the sky signal as a superposition of the CMB and of the existing simulated polarization templates of Galactic synchrotron. Our results indicate that the angular power spectrum of CMB E mode can be recovered on all scales up to lsimilar or equal to 1000, corresponding to the fourth acoustic oscillation, while the B-mode power spectrum can be detected, up to its turnover at lsimilar or equal to 100, if the ratio of tensor to scalar contributions to the temperature quadrupole exceeds 30 per cent. The power spectrum of the cross-correlation between total intensity and polarization, TE, can be recovered up to lsimilar or equal to 1200, corresponding to the seventh TE acoustic oscillation.

Baccigalpi, C.; Perrotta, F.; Zotti, G.D.; Smoot, G.F.; Burigana,C.; Maino, D.; Bedini, L.; Salerno, E.

2004-05-02T23:59:59.000Z

465

Extracting cosmic microwave background polarisation from satellite astrophysical maps  

E-Print Network (OSTI)

We present the application of the Fast Independent Component Analysis ({\\ica}) technique for blind component separation to polarized astrophysical emission. We study how the Cosmic Microwave Background (CMB) polarized signal, consisting of $E$ and $B$ modes, can be extracted from maps affected by substantial contamination from diffuse Galactic foreground emission and instrumental noise. {We implement Monte Carlo chains varying the CMB and noise realizations in order to asses the average capabilities of the algorithm and their variance.} We perform the analysis of all sky maps simulated according to the {\\sc Planck} satellite capabilities, modelling the sky signal as a superposition of the CMB and of the existing simulated polarization templates of Galactic synchrotron. Our results indicate that the angular power spectrum of CMB $E$-mode can be recovered on all scales up to $\\ell\\simeq 1000$, corresponding to the fourth acoustic oscillation, while the $B$-mode power spectrum can be detected, up to its turnover at $\\ell\\simeq 100$, if the ratio of tensor to scalar contributions to the temperature quadrupole exceeds 30%. The power spectrum of the cross correlation between total intensity and polarization, $TE$, can be recovered up to $\\ell\\simeq 1200$, corresponding to the seventh $TE$ acoustic oscillation.

C. Baccigalupi; F. Perrotta; G. De Zotti; G. F. Smoot; C. Burigana; D. Maino; L. Bedini; E. Salerno

2002-09-27T23:59:59.000Z

466

Hyperfine Structure Measurements of Antiprotonic $^3$He using Microwave Spectroscopy  

E-Print Network (OSTI)

The goal of this project was to measure the hyperfine structure of $\\overline{\\text{p}}^3$He$^+$ using the technique of laser-microwave-laser spectroscopy. Antiprotonic helium ($\\overline{\\text{p}}$He$^+$) is a neutral exotic atom, consisting of a helium nucleus, an electron and an antiproton. The interactions of the angular momenta of its constituents cause a hyperfine splitting ({HFS}) within the energy states of this new atom. The 3\\% of formed antiprotonic helium atoms which remain in a metastable, radiative decay-dominated state have a lifetime of about 1-3~$\\mu$s. This time window is used to do spectroscopic studies. The hyperfine structure of $\\overline{\\text{p}}^4$He$^+$ was already extensively investigated before. From these measurements the spin magnetic moment of the antiproton can be determined. A comparison of the result to the proton magnetic moment provides a test of {CPT} invariance. Due to its higher complexity the new exotic three-body system of $\\overline{\\text{p}}^3$He$^+$ is a cross-check...

Friedreich, Susanne

467

Making maps of the cosmic microwave background: The MAXIMAexample  

Science Conference Proceedings (OSTI)

This work describes cosmic microwave background (CMB) data analysis algorithms and their implementations, developed to produce a pixelized map of the sky and a corresponding pixel-pixel noise correlation matrix from time ordered data for a CMB mapping experiment. We discuss in turn algorithms for estimating noise properties from the time ordered data, techniques for manipulating the time ordered data, and a number of variants of the maximum likelihood map-making procedure. We pay particular attention to issues pertinent to real CMB data, and present ways of incorporating them within the framework of maximum likelihood map making. Making a map of the sky is shown to be not only an intermediate step rendering an image of the sky, but also an important diagnostic stage, when tests for and/or removal of systematic effects can efficiently be performed. The case under study is the MAXEMA-I data set. However, the methods discussed are expected to be applicable to the analysis of other current and forthcoming CMB experiments.

Stompor, R.; Balbi, A.; Borrill, J.D.; Ferreira, P.G.; Hanany,S.; Jaffe, A.H.; Lee, A.T.; Oh, S.; Rabii, B.; Richards, P.L.; Smoot,G.F.; Winant, C.D.; Wu, J.H.P.

2001-06-25T23:59:59.000Z

468

Method and apparatus for stabilizing pulsed microwave amplifiers  

DOE Patents (OSTI)

Phase and amplitude variations at the output of a high power pulsed microwave amplifier arising from instabilities of the driving electron beam are suppressed with a feed-forward system that can stabilize pulses which are too brief for regulation by conventional feedback techniques. Such variations tend to be similar during successive pulses. The variations are detected during each pulse by comparing the amplifier output with the low power input signal to obtain phase and amplitude error signals. This enables storage of phase and amplitude correction signals which are used to make compensating changes in the low power input signal during the following amplifier output pulse which suppress the variations. In the preferred form of the invention, successive increments of the correction signals for each pulse are stored in separate channels of a multi-channel storage. Sequential readout of the increments during the next pulse provides variable control voltages to a voltage controlled phase shifter and voltage controlled amplitude modulator in the amplifier input signal path.

Hopkins, Donald B. (Sacramento, CA)

1993-01-01T23:59:59.000Z

469

Merging Conventional (191592) and Passive Microwave (19782002) Estimates of Snow Extent and Water Equivalent over Central North America  

Science Conference Proceedings (OSTI)

A detailed evaluation of snow water equivalent (SWE) and snow cover extent (SCE) derived using the combined Scanning Multichannel Microwave Radiometer (SMMR) and Special Sensor Microwave Imager (SSM/I) brightness temperature records for the 1978...

C. Derksen; R. Brown; A. Walker

2004-10-01T23:59:59.000Z

470

The Assimilation of Observations from the Advanced Microwave Sounding Unit over Sea Ice in the French Global Numerical Weather Prediction System  

Science Conference Proceedings (OSTI)

The aim of this study is to test the feasibility of assimilating microwave observations from the Advanced Microwave Sounding Units (AMSU-A and AMSU-B) through the implementation of an appropriate parameterization of sea ice emissivity. AMSU ...

Fatima Karbou; Florence Rabier; Catherine Prigent

2014-01-01T23:59:59.000Z

471

A Land and Ocean Microwave Cloud Classification Algorithm Derived from AMSU-A and -B, Trained Using MSG-SEVIRI Infrared and Visible Observations  

Science Conference Proceedings (OSTI)

A statistical cloud classification and cloud mask algorithm is developed based on Advanced Microwave Sounding Unit (AMSU-A and -B) microwave (MW) observations. The visible and infrared data from the Meteosat Third Generation-Spinning Enhanced ...

Filipe Aires; Francis Marquisseau; Catherine Prigent; Genevive Sze

2011-08-01T23:59:59.000Z

472

Microwave Tokamak Experiment: An overview of the construction and checkout phase  

SciTech Connect

At Lawrence Livermore National Laboratory (LLNL) we constructed and presently operate the Microwave Tokamak Experiment (MTX) to demonstrate the feasibility of using microwave pulses produced from a free electron laser (FEL) to provide electron cyclotron heating (ECH) for use in tokamaks, particularly high-field machines. The MTX consists primarily of the ALCATOR C tokamak and power supplies that were documented and disassembled at the Massachusetts Institute of Technology (MIT) and shipped to LLNL in April 1987. We made many additions, including a new primary power system from the magnetic Fusion Test Facility (MFTF) substation, a new commutation system, substantially upgraded seismic support system for earthquake loading, a fast controls system for use with the FEL, a new data-acquisition system, and a new vault facility. We checked out these systems and put them into operation in October 1988; we achieved the first plasma in November 1988. We have also constructed and installed the microwave transmission system and the local microwave system to be used with the FEL. These systems transmit the microwaves to MTX quasi-optically through an evacuated tube. The ongoing plasma operations, both with and without FEL heating, are described in a companion paper. 12 refs., 2 figs., 2 tabs.

Lang, L.L.; Bell, H.H.

1989-09-28T23:59:59.000Z

473

A Permanent-Magnet Microwave Ion Source for a Compact High-Yield Neutron Generator  

SciTech Connect

We present recent work on the development of a microwave ion source that will be used in a high-yield compact neutron generator for active interrogation applications. The sealed tube generator will be capable of producing high neutron yields, 5x1011 n/s for D-T and ~;;1x1010 n/s for D-D reactions, while remaining transportable. We constructed a microwave ion source (2.45 GHz) with permanent magnets to provide the magnetic field strength of 87.5 mT necessary for satisfying the electron cyclotron resonance (ECR) condition. Microwave ion sources can produce high extracted beam currents at the low gas pressures required for sealed tube operation and at lower power levels than previously used RF-driven ion sources. A 100 mA deuterium/tritium beam will be extracted through a large slit (60x6 mm2) to spread the beam power over a larger target area. This paper describes the design of the permanent-magnet microwave ion source and discusses the impact of the magnetic field design on the source performance. The required equivalent proton beam current density of 40 mA/cm2 was extracted at a moderate microwave power of 400 W with an optimized magnetic field.

Waldmann, Ole; Ludewigt, Bernhard

2010-10-11T23:59:59.000Z

474

Field emission characteristics of SnO2/CNTs composites prepared by microwave-assisted wet impregnation  

Science Conference Proceedings (OSTI)

The SnO2/CNT composites were prepared by microwave-assisted wet impregnation at 60C. The process was optimized by varying the microwave power and reaction time. Raman analysis showed the typical features of the rutile phase of as-synthesized ...

Sreejarani K. Pillai; Sarah C. Motshekga; Suprakas Sinha Ray; John Kennedy

2012-01-01T23:59:59.000Z

475

Preliminary evaluation of a concept using microwave energy to improve an adsorption-based, natural gas clean-up process  

SciTech Connect

This report describes the results of a preliminary evaluation performed to: (1) determine if microwave energy could be used to regenerate a zeolite adsorbent and (2) to evaluate the feasibility of using microwave energy to improve the desorption phase of a pressure swing adsorption process applied to upgrading natural gas (methane) contaminated with nitrogen. Microwave regeneration was evaluated by comparing the adsorption characteristics of a zeolite preconditioned by heating under vacuum to the characteristics of the same zeolite after various lengths of exposure to microwave energy. The applicability of microwave regeneration to natural gas cleanup was evaluated by measuring the rise in adsorbent temperature resulting from the microwave exposure. Microwave energy consumed by heating the adsorbent is not productive and must therefore be minimal for a process to be economically viable. Exposure of the methane-saturated chabazite for 2 minutes to microwave energy effectively regenerated the adsorbent, but resulted in a 75{degrees}F (42{degrees}C) rise in adsorbent temperature. This temperature rise indicates that the concept is unacceptable for natural gas processing due to excessive energy consumption.

Grimes, R.W.

1992-12-01T23:59:59.000Z

476

Printed circuit board impedance matching step for microwave (millimeter wave) devices  

SciTech Connect

An impedance matching ground plane step, in conjunction with a quarter wave transformer section, in a printed circuit board provides a broadband microwave matching transition from board connectors or other elements that require thin substrates to thick substrate (>quarter wavelength) broadband microwave (millimeter wave) devices. A method of constructing microwave and other high frequency electrical circuits on a substrate of uniform thickness, where the circuit is formed of a plurality of interconnected elements of different impedances that individually require substrates of different thicknesses, by providing a substrate of uniform thickness that is a composite or multilayered substrate; and forming a pattern of intermediate ground planes or impedance matching steps interconnected by vias located under various parts of the circuit where components of different impedances are located so that each part of the circuit has a ground plane substrate thickness that is optimum while the entire circuit is formed on a substrate of uniform thickness.

Pao, Hsueh-Yuan; Aguirre, Jerardo; Sargis, Paul

2013-10-01T23:59:59.000Z

477

System to continuously produce carbon fiber via microwave assisted plasma processing  

Science Conference Proceedings (OSTI)

A system to continuously produce fully carbonized or graphitized carbon fibers using microwave-assisted plasma (MAP) processing comprises an elongated chamber in which a microwave plasma is excited in a selected gas atmosphere. Fiber is drawn continuously through the chamber, entering and exiting through openings designed to minimize in-leakage of air. There is a gradient of microwave power within the chamber with generally higher power near where the fiber exits and lower power near where the fiber enters. Polyacrylonitrile (PAN), pitch, or any other suitable organic/polymeric precursor fibers can be used as a feedstock for the inventive system. Oxidized or partially oxidized PAN or pitch or other polymeric fiber precursors are run continuously through a MAP reactor in an inert, non-oxidizing atmosphere to heat the fibers, drive off the unwanted elements such as oxygen, nitrogen, and hydrogen, and produce carbon or graphite fibers faster than conventionally produced carbon fibers.

White, Terry L. (Knoxville, TN); Paulauskas, Felix L. (Knoxville, TN); Bigelow, Timothy S. (Knoxville, TN)

2010-11-02T23:59:59.000Z

478

Method and device for generating microwaves using a split cavity modulator  

DOE Patents (OSTI)

This invention consists of a compact device called the split cavity modulator whose self-generated oscillating electromagnetic field converts a steady particle beam into a modulated particle beam. The particle beam experiences both signs of the oscillating electric field during the transit through the split cavity modulator. The modulated particle beam can then be used to generate microwaves as that frequency and through a series of sequential extractors, high efficiency extraction of microwave power is enabled. The modulated beam and the microwave frequency can be varied by the placement of resistive wires at nodes of oscillation within the cavity. The short beam travel length through the cavity permit higher currents because both space charge and pinching limitations are reduced. The need for an applied magnetic field to control the beam has been eliminated.

Clark, M.C.; Coleman, P.D.; Marder, B.M.

1990-01-01T23:59:59.000Z

479

Method and device for generating microwaves using a split cavity modulator  

DOE Patents (OSTI)

This invention consists of a compact device called the split cavity modulator whose self-generated oscillating electromagnetic field converts a steady particle beam into a modulated particle beam. The particle beam experiences both signs of the oscillating electric field during the transit through the split cavity modulator. The modulated particle beam can then be used to generate microwaves as that frequency and through a series of sequential extractors, high efficiency extraction of microwave power is enabled. The modulated beam and the microwave frequency can be varied by the placement of resistive wires at nodes of oscillation within the cavity. The short beam travel length through the cavity permit higher currents because both space charge and pinching limitations are reduced. The need for an applied magnetic field to control the beam has been eliminated.

Clark, M.C.; Coleman, P.D.; Marder, B.M.

1990-12-31T23:59:59.000Z

480

Microwave-assisted fast vapor-phase transport synthesis of MnAPO-5 molecular sieves  

Science Conference Proceedings (OSTI)

MnAPO-5 was prepared by a microwave-assisted vapor-phase transport method at 180 deg. C in short times. The products were characterized by X-ray diffraction, scanning electron microscopy, Fourier transform infrared spectra, UV-vis spectroscopic measurement, NH{sub 3}-temperature-programmed desorption and esterification reaction. It was found that dry gels prepared with aluminum isopropoxide, phosphoric acid and manganese acetate could be transferred to MnAPO-5 in the vapors of triethylamine and water by the microwave-assisted vapor-phase transport method at 180 deg. C for less than 30 min. The crystallization time was greatly reduced by the microwave heating compared with the conventional heating. The resulting MnAPO-5 exhibited much smaller particle sizes, higher surface areas and slightly higher catalytic activity in the esterification of acetic acid and butyl alcohol than those prepared by the conventional vapor-phase transport method and hydrothermal synthesis.

Shao Hui [State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing 210009 (China); Department of Chemical Engineering, Jiangsu Polytechnic University, Changzhou 213016 (China); Yao Jianfeng; Ke Xuebin [State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing 210009 (China); Zhang Lixiong [State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing 210009 (China)], E-mail: lixiongzhang@yahoo.com; Xu Nanping [State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing 210009 (China)

2009-04-02T23:59:59.000Z

Note: This page contains sample records for the topic "dayton hilltop microwave" from the National Library of EnergyBeta (NLEBeta).
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481

Method of preparing thermal insulation for high temperature microwave sintering operations  

DOE Patents (OSTI)

Superior microwave transparent thermal insulations for high temperature microwave sintering operations were prepared. One embodiment of the thermal insulation comprises granules of boron nitride coated with a very thin layer of glassy carbon made by preparing a glassy carbon precursor and blending it with boron nitride powder to form a mixture. The blended mixture is granulated to form a grit which is dried and heated to form the granules of boron nitride coated with a glassy carbon. Alternatively, grains of glassy carbon are coated with boron nitride by blending a mixture of a slurry comprising boron nitride, boric acid binder, and methyl alcohol with glassy carbon grains to form a blended mixture. The blended mixture is dried to form grains of glassy carbon coated with boron nitride. In addition, a physical mixture of boron nitride powder and glassy carbon grains has also been shown to be an excellent thermal insulation material for microwave processing and sintering. 1 fig.

Holcombe, C.E.; Dykes, N.L.; Morrow, M.S.

1996-07-16T23:59:59.000Z

482

Method of preparing thermal insulation for high temperature microwave sintering operations  

DOE Patents (OSTI)

Superior microwave transparent thermal insulations for high temperature microwave sintering operations were prepared. One embodiment of the thermal insulation comprises granules of boron nitride coated with a very thin layer of glassy carbon made by preparing a glassy carbon precursor and blending it with boron nitride powder to form a mixture. The blended mixture is granulated to form a grit which is dried and heated to form the granules of boron nitride coated with a glassy carbon. Alternatively, grains of glassy carbon are coated with boron nitride by blending a mixture of a slurry comprising boron nitride, boric acid binder, and methyl alcohol with glassy carbon grains to form a blended mixture. The blended mixture is dried to form grains of glassy carbon coated with boron nitride. In addition, a physical mixture of boron nitride powder and glassy carbon grains has also been shown to be an excellent thermal insulation material for microwave processing and sintering.

Holcombe, Cressie E. (Knoxville, TN); Dykes, Norman L. (Oak Ridge, TN); Morrow, Marvin S. (Kingston, TN)

1996-01-01T23:59:59.000Z

483

Thermal insulation for high temperature microwave sintering operations and method thereof  

DOE Patents (OSTI)

Superior microwave transparent thermal insulations for high temperature microwave sintering operations were prepared. One embodiment of the thermal insulation comprises granules of boron nitride coated with a very thin layer of glassy carbon made by preparing a glassy carbon precursor and blending it with boron nitride powder to form a mixture. The blended mixture is granulated to form a grit which is dried and heated to form the granules of boron nitride coated with a glassy carbon. Alternatively, grains of glassy carbon are coated with boron nitride by blending a mixture of a slurry comprising boron nitride, boric acid binder, and methyl alcohol with glassy carbon grains to form a blended mixture. The blended mixture is dried to form grains of glassy carbon coated with boron nitride. In addition, a physical mixture of boron nitride powder and glassy carbon grains has also been shown to be an excellent thermal insulation material for microwave processing and sintering. 1 fig.

Holcombe, C.E.; Dykes, N.L.; Morrow, M.S.

1995-09-12T23:59:59.000Z

484

Thermal insulation for high temperature microwave sintering operations and method thereof  

DOE Patents (OSTI)

Superior microwave transparent thermal insulations for high temperature microwave sintering operations were prepared. One embodiment of the thermal insulation comprises granules of boron nitride coated with a very thin layer of glassy carbon made by preparing a glassy carbon precursor and blending it with boron nitride powder to form a mixture. The blended mixture is granulated to form a grit which is dried and heated to form the granules of boron nitride coated with a glassy carbon. Alternatively, grains of glassy carbon are coated with boron nitride by blending a mixture of a slurry comprising boron nitride, boric acid binder, and methyl alcohol with glassy carbon grains to form a blended mixture. The blended mixture is dried to form grains of glassy carbon coated with boron nitride. In addition, a physical mixture of boron nitride powder and glassy carbon grains has also been shown to be an excellent thermal insulation material for microwave processing and sintering.

Holcombe, Cressie E. (Knoxville, TN); Dykes, Norman L. (Oak Ridge, TN); Morrow, Marvin S. (Kingston, TN)

1995-01-01T23:59:59.000Z

485

High-power microwave LDMOS transistors for wireless data transmission technologies (Review)  

Science Conference Proceedings (OSTI)

The fields of the application, structure, fabrication, and packaging technology of high-power microwave LDMOS transistors and the main advantages of these devices were analyzed. Basic physical parameters and some technology factors were matched for optimum device operation. Solid-state microwave electronics has been actively developed for the last 10-15 years. Simultaneously with improvement of old devices, new devices and structures are actively being adopted and developed and new semiconductor materials are being commercialized. Microwave LDMOS technology is in demand in such fields as avionics, civil and military radars, repeaters, base stations of cellular communication systems, television and broadcasting transmitters, and transceivers for high-speed wireless computer networks (promising Wi-Fi and Wi-Max standards).

Kuznetsov, E. V., E-mail: E.Kouzntsov@tcen.ru; Shemyakin, A. V. [Moscow Institute of Electronic Technology, SMC Technological Center (Russian Federation)

2010-12-15T23:59:59.000Z

486

MADCAP - The Microwave Anisotropy Dataset Computational Analysis Package  

E-Print Network (OSTI)

In the standard model of cosmology the universe starts with a hot Big Bang. As the universe expands it cools, and after 300,000 years it drops below the ionisation temperature of hydrogen. The previously free electrons become bound to protons, and with no electrons for the photons to scatter off they continue undeflected to us today. This image of the surface of last-scattering is what we call the Cosmic (because it fills the universe) Microwave (because of the frequency at which its black body spectrum peaks today) Background (because it originates behind all other light sources). Despite its stunning uniformity - isotropic to a few parts in a million - it is the tiny perturbations in the CMB that give us an unprecedented view of the early universe. First detected by the COBE satellite in 1991, these anisotropies are an imprint of the primordial density fluctuations needed to seed the development of gravitationally bound objects in the universe, and are potentially the most powerful discriminant between cosmological models. Realizing the extraordinary scientific potential of the CMB requires precise measurements of these tiny anisotropies over a significant fraction of the sky at very high resolution. The analysis of the resulting datasets is a serious computational challenge. Existing algorithms require terabytes of memory and hundreds of years of CPU time. We must therefore both maximize our resources by moving to supercomputers and minimize our requirements by algorithmic development. Here we will outline the nature of the challenge, present our current optimal algorithm, discuss its implementation - as the MADCAP software package - and its application to data from the North American test flight of the joint Italian-U.S. BOOMERanG experiment on the Cray T3E at NERSC...

Julian Borrill

1999-01-01T23:59:59.000Z

487

Standoff detection of large organic molecules using Rydberg fingerprint spectroscopy and microwave Rayleigh scattering  

SciTech Connect

We present a technique for nonintrusive and standoff detection of large organic molecules using coherent microwave Rayleigh scattering from plasma produced by structure sensitive photoionization through Rydberg states. We test the method on 1,4-diazobicyclooctane. Transitions between the 3s Rydberg state and higher lying Rydberg states are probed using two-color photoionization with 266?nm photons and photons in the range of 460-2400 nm. Photoionization is detected using microwave radiation, which is scattered by the unbounded electrons. Highly resolved Rydberg spectra are acquired in vacuum and in air.

Rudakov, Fedor M [ORNL; Zhang, Zhili [ORNL

2012-01-01T23:59:59.000Z

488

The influence of microwave radiation on the state of chromatin in human cells  

E-Print Network (OSTI)

Isolated human buccal epithelium cell were irradiated by microwaves at frequency f=35 GHz and surface power density E=30 mcW/cm2. The state of chromatin in human cells was determined by methodsof light and electron microscopy. The state of cell membranes was evaluated by the method of vital indigo carmine staining. The microwave-induced condensation of chromatin in human cells was revealed. Left side circulary polarized waves induced less effect than linearly polarized radiation. The linearly polarized electromagnetic waves induced cell membrane damage revealed by the increase of cell stainability. The data obtained are discussed in connection with the mechanisms of biologica effect of electromagnetic waves.

Shckorbatov, Y G; Grabina, V A; Kolchigin, N N; Batrakov, D O; Kalashnikov, V V; Ivanchenko, D D; Bykov, V N

2008-01-01T23:59:59.000Z

489

The influence of microwave radiation on the state of chromatin in human cells  

E-Print Network (OSTI)

Isolated human buccal epithelium cell were irradiated by microwaves at frequency f=35 GHz and surface power density E=30 mcW/cm2. The state of chromatin in human cells was determined by methodsof light and electron microscopy. The state of cell membranes was evaluated by the method of vital indigo carmine staining. The microwave-induced condensation of chromatin in human cells was revealed. Left side circulary polarized waves induced less effect than linearly polarized radiation. The linearly polarized electromagnetic waves induced cell membrane damage revealed by the increase of cell stainability. The data obtained are discussed in connection with the mechanisms of biologica effect of electromagnetic waves.

Y. G. Shckorbatov; V. N. Pasiuga; V. A. Grabina; N. N. Kolchigin; D. O. Batrakov; V. V. Kalashnikov; D. D. Ivanchenko; V. N. Bykov

2008-09-03T23:59:59.000Z

490

Soil moisture modeling and scaling using passive microwave remote sensing  

E-Print Network (OSTI)

Soil moisture in the shallow subsurface is a primary hydrologic state governing land-atmosphere interaction at various scales. The primary objectives of this study are to model soil moisture in the root zone in a distributed manner and determine scaling properties of surface soil moisture using passive microwave remote sensing. The study was divided into two parts. For the first study, a root zone soil moisture assessment tool (SMAT) was developed in the ArcGIS platform by fully integrating a one-dimensional vadose zone hydrology model (HYDRUS-ET) with an ensemble Kalman filter (EnKF) data assimilation capability. The tool was tested with dataset from the Southern Great Plain 1997 (SGP97) hydrology remote sensing experiment. Results demonstrated that SMAT displayed a reasonable capability to generate soil moisture distribution at the desired resolution at various depths of the root zone in Little Washita watershed during the SGP97 hydrology remote sensing experiment. To improve the model performance, several outstanding issues need to be addressed in the future by: including "effective" hydraulic parameters across spatial scales; implementing subsurface soil properties data bases using direct and indirect methods; incorporating appropriate hydrologic processes across spatial scales; accounting uncertainties in forcing data; and preserving interactions for spatially correlated pixels. The second study focused on spatial scaling properties of the Polarimetric Scanning Radiometer (PSR)-based remotely sensed surface soil moisture fields in a region with high row crop agriculture. A wavelet based multi-resolution technique was used to decompose the soil moisture fields into larger-scale average soil moisture fields and fluctuations in horizontal, diagonal and vertical directions at various resolutions. The specific objective was to relate soil moisture variability at the scale of the PSR footprint (800 m X 800 m) to larger scale average soil moisture field variability. We also investigated the scaling characteristics of fluctuation fields among various resolutions. The spatial structure of soil moisture exhibited linearity in the log-log dependency of the variance versus scale-factor, up to a scale factor of -2.6 (6100 m X 6100 m) irrespective of wet and dry conditions, whereas dry fields reflect nonlinear (multi-scaling) behavior at larger scale-factors.

Das, Narendra N.

2005-12-01T23:59:59.000Z

491

Building America Efficient Solutions for Existing Homes Case Study: Retrofit of 1915 Home, Dayton, Washington  

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

Built in 1915, this two-story, three-bedroom home with an unfinished Built in 1915, this two-story, three-bedroom home with an unfinished basement and 2,600 ft 2 of living space is typical of many older homes found in eastern Washington. Through the U.S. Department of Energy's Building America program, researchers from the Pacific Northwest National Laboratory worked with local energy rater Energy Incentives, Inc., to assist the home owners in cost-effectively reducing their energy use by over 50%. The researchers used Energy Gauge USA simulation software to model retrofit packages and predict the most cost-effective retrofit measures within the homeowner's budget. The presence of asbestos insulation on the boiler made it more cost- effective to pursue efficiency measures that left the boiler in place to avoid the additional costs of disposal. Major energy and cost savings

492

EIS-0495: Walla Walla Basin Spring Chinook Hatchery Program; Milton-Freewater, Oregon, and Dayton, Washington  

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

Bonneville Power Administration (BPA) is preparing an EIS to analyze the potential environmental impacts of funding a proposal by the Confederated Tribes of the Umatilla Indian Reservation to construct and operate a hatchery for spring Chinook salmon in the Walla Walla River basin.

493

Resolution Enhancement of Multichannel Microwave Imagery from the Nimbus-7 SMMR for Maritime Rainfall Analysis  

Science Conference Proceedings (OSTI)

A restoration of the 37, 21, 18, 10.7 and 6.6 GHz satellite imagery from the Scanning Multichannel Microwave Radiometer (SMMR) aboard Nimbus-7 to 22.2 km resolution is attempted using a deconvolution method based upon nonlinear programming. The ...

William S. Olson; Chia-Lung Yeh; James A. Weinman; Roland T. Chin

1986-09-01T23:59:59.000Z

494

Cosmic microwave background map-making at the petascale and beyond  

Science Conference Proceedings (OSTI)

The analysis of Cosmic Microwave Background (CMB) observations is a long-standing computational challenge, driven by the exponential growth in the size of the data sets being gathered. Since this growth is projected to continue for at least the next ... Keywords: hybrid programming, petascale computing, sparse allreduce

Rajesh Sudarsan; Julian Borrill; Christopher Cantalupo; Theodore Kisner; Kamesh Madduri; Leonid Oliker; Yili Zheng; Horst Simon

2011-05-01T23:59:59.000Z

495

Snowmelt on the Greenland Ice Sheet as Derived from Passive Microwave Satellite Data  

Science Conference Proceedings (OSTI)

The melt extent of the snow on the Greenland ice sheet is of considerable importance to the ice sheets mass and energy balance, as well as Arctic and global climates. By comparing passive microwave satellite data to field observations, ...

Waleed Abdalati; Konrad Steffen

1997-02-01T23:59:59.000Z

496

Collector surface for a microwave tube comprising a carbon-bonded carbon-fiber composite  

DOE Patents (OSTI)

In a microwave tube, an improved collector surface coating comprises a porous carbon composite material, preferably a carbon-bonded carbon fiber composite having a bulk density less than about 2 g/cc. Installation of the coating is readily adaptable as part of the tube manufacturing process.

Lauf, Robert J. (Oak Ridge, TN); McMillan, April D. (Knoxville, TN); Johnson, Arvid C. (Lake in the Hills, IL); Moorhead, Arthur J. (Knoxville, TN)

1998-01-01T23:59:59.000Z

497

Diagnosis of a Polar Low Warm Core Utilizing the Advanced Microwave Sounding Unit  

Science Conference Proceedings (OSTI)

Data from the Advanced Microwave Sounding Unit (AMSU) are used to examine a polar low that occurred in the Labrador Sea on 1718 March 2000. During its 40-h lifetime, the polar low was observed three times by AMSU, which captured the formation ...

Richard W. Moore; Thomas H. Vonder Haar

2003-10-01T23:59:59.000Z

498

Effect of particle morphology on sinterability of SiC-ZrO2 in microwave  

Science Conference Proceedings (OSTI)

The effect of particle morphology on the sinterability of microwave-sintered SiC-ZrO2 was evaluated in this paper. A comparison was alsomade against the electric furnace and resulted in faster heating rate because of the difference of heat ...

Lydia Anggraini; Kei Ameyama

2012-01-01T23:59:59.000Z

499

Microwave plasma monitoring system for the elemental composition analysis of high temperature process streams  

DOE Patents (OSTI)

Microwave-induced plasma for continuous, real time trace element monitoring under harsh and variable conditions. The sensor includes a source of high power microwave energy and a shorted waveguide made of a microwave conductive, high temperature capability refractory material communicating with the source of the microwave energy to generate a plasma. The high power waveguide is constructed to be robust in a hot, hostile environment. It includes an aperture for the passage of gases to be analyzed and a spectrometer is connected to receive light from the plasma. Provision is made for real time in situ calibration. The spectrometer disperses the light, which is then analyzed by a computer. The sensor is capable of making continuous, real time quantitative measurements of desired elements, such as the heavy metals lead and mercury. The invention may be incorporated into a high temperature process device and implemented in situ for example, such as with a DC graphite electrode plasma arc furnace. The invention further provides a system for the elemental analysis of process streams by removing particulate and/or droplet samples therefrom and entraining such samples in the gas flow which passes through the plasma flame. Introduction of and entraining samples in the gas flow may be facilitated by a suction pump, regulating gas flow, gravity or combinations thereof.

Woskov, Paul P. (Bedford, MA); Cohn, Daniel R. (Chestnuthill, MA); Titus, Charles H. (Newtown Square, PA); Surma, Jeffrey E. (Kennewick, WA)

1997-01-01T23:59:59.000Z

500

Computational modeling study of the radial line slot antenna microwave plasma source with comparisons to experiments  

SciTech Connect

The radial line slot antenna plasma source is a high-density microwave plasma source comprising a high electron temperature source region within the plasma skin depth from a coupling window and low electron temperature diffusion region far from the window. The plasma is typically comprised of inert gases like argon and mixtures of halogen or fluorocarbon gases for etching. Following the experimental study of Tian et al.[J. Vac. Sci. Technol. A 24, 1421 (2006)], a two-dimensional computational model is used to describe the essential features of the source. A high density argon plasma is described using the quasi-neutral approximation and coupled to a frequency-domain electromagnetic wave solver to describe the plasma-microwave interactions in the source. The plasma is described using a multispecies plasma chemistry mechanism developed specifically for microwave excitation conditions. The plasma is nonlocal by nature with locations of peak power deposition and peak plasma density being very different. The spatial distribution of microwave power coupling depends on whether the plasma is under- or over-dense and is described well by the model. The model predicts the experimentally observed low-order diffusion mode radial plasma profiles. The trends of spatial profiles of electron density and electron temperature over a wide range of power and pressure conditions compare well with experimental results.

Raja, Laxminarayan L. [Department of Aerospace Engineering and Engineering Mechanics, University of Texas at Austin, Austin, Texas 78712 (United States); Mahadevan, Shankar [Esgee Technologies Inc., 1301 S. Capital of Texas Hwy. Suite B-122, Austin, Texas 78746 (United States); Ventzek, Peter L. G.; Yoshikawa, Jun [Tokyo Electron Ltd., Akasaka Biz Tower, 3-1 Akasaka 5-chome, Minato-ku, Tokyo 107-6325 (Japan)

2013-05-15T23:59:59.000Z