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1

Clean Development Mechanism Executive Board CDM EB | Open Energy...  

Open Energy Info (EERE)

Mechanism Executive Board CDM EB Jump to: navigation, search Name Clean Development Mechanism Executive Board (CDM EB) Place Bonn, Germany Zip D-53175 Product The CDM EB supervises...

2

CDM Sustainable Development Tool | Open Energy Information  

Open Energy Info (EERE)

CDM Sustainable Development Tool CDM Sustainable Development Tool Jump to: navigation, search Tool Summary Name: CDM Sustainable Development Tool Agency/Company /Organization: United Nations Framework Convention on Climate Change (UNFCCC) Secretariat Sector: Climate, Energy Topics: Analysis Tools User Interface: Website Complexity/Ease of Use: Simple Website: www.research.net/s.aspx?sm=18gHbqaSXStje1ZSfnNI3k2%2Be9hblXIZ7ZPrqk8cV Cost: Free Related Tools Alternative Fuel and Advanced Technology Vehicles Pilot Program Emissions Benefit Tool Greenhouse Gas and Air Pollution Interactions and Synergies (GAINS) TEEMP ... further results Find Another Tool FIND DEVELOPMENT IMPACTS ASSESSMENT TOOLS An online tool that highlights the co-benefits brought about by Clean Development Mechanism (CDM) projects.

3

Primary Research on Financing Innovation for China Coal CDM Projects Development  

Science Conference Proceedings (OSTI)

This paper gives an update introduction about China coal CDM projects, financing problems in China coal CDM development was analysized and some innovation suggestions for China CDM projects was given. Finally some successful experience in India CDM financing ...

Xiangyang Xu

2009-12-01T23:59:59.000Z

4

Financial Analysis for Developing CDM Project in the Coke Plant  

Science Conference Proceedings (OSTI)

In the coke plant, the traditional coke wet quenching method is to be used to cool down the red hot coke and waste heat is released to the atmosphere in China. There are a lot of smog, particles, cyanide, sulphide and etc. mixtures within the waste heat. ... Keywords: CDQ technology, CO2 emission reductions, financial analysis, potential calculation, recycle sustainable development

Ma Xiuqin; Huang Chao; Wu Guoning

2009-05-01T23:59:59.000Z

5

Clean Development Mechanism | Open Energy Information  

Open Energy Info (EERE)

Development Mechanism Development Mechanism Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Clean Development Mechanism Agency/Company /Organization: United Nations Framework Convention on Climate Change Sector: Energy, Land Focus Area: Energy Efficiency, Renewable Energy Topics: Implementation, Market analysis, Technology characterizations Website: cdm.unfccc.int/about/index.html Equivalent URI: cleanenergysolutions.org/content/making-case-carbon-capture-and-storag Policies: Financial Incentives References: CDM[1] This article makes the case for carbon capture and storage (CCS) in the Clean Development Mechanism (CDM) in developing nations while also addressing some of the barriers to entry and concerns of developing nations regarding adoption of this process.

6

CDM in Charts | Open Energy Information  

Open Energy Info (EERE)

CDM in Charts CDM in Charts Jump to: navigation, search Tool Summary LAUNCH TOOL Name: CDM in Charts Agency/Company /Organization: Institute for Global Environmental Strategies Sector: Energy Topics: Implementation, Policies/deployment programs Resource Type: Publications Website: enviroscope.iges.or.jp/modules/envirolib/upload/835/attach/charts.pdf References: CDM in Charts[1] Summary "This document aims to give a comprehensive and easy-to-understand description of the clean development mechanism (CDM). It should be noted that this document does not replicate in the exact manner all the texts agreed upon in the international negotiations. Also, there are issues yet to be settled in the international negotiations regarding detailed interpretations and processes. As for the details and exact expressions in

7

UNFCCC/UNEP-Risoe CDM Bazaar | Open Energy Information  

Open Energy Info (EERE)

UNFCCC/UNEP-Risoe CDM Bazaar UNFCCC/UNEP-Risoe CDM Bazaar Jump to: navigation, search Name UNFCCC/UNEP-Risoe CDM Bazaar Agency/Company /Organization United Nations Framework Convention on Climate Change Partner UNEP-Risoe Centre Topics Finance, Market analysis Website http://www.cdmbazaar.net/ References CDM Bazaar Homepage [1] "The UNFCCC CDM Bazaar is a Web-based facility which serves as a platform for exchange of information on Clean Development Mechanism (CDM) project opportunities."[1] References ↑ 1.0 1.1 [1] Retrieved from "http://en.openei.org/w/index.php?title=UNFCCC/UNEP-Risoe_CDM_Bazaar&oldid=383423" Category: Programs What links here Related changes Special pages Printable version Permanent link Browse properties 429 Throttled (bot load) Error 429 Throttled (bot load)

8

Analysis of Technology Transfer in CDM Projects | Open Energy Information  

Open Energy Info (EERE)

Analysis of Technology Transfer in CDM Projects Analysis of Technology Transfer in CDM Projects Jump to: navigation, search Tool Summary Name: Analysis of Technology Transfer in CDM Projects Agency/Company /Organization: United Nations Framework Convention on Climate Change Sector: Energy, Land Topics: Finance, Implementation Resource Type: Publications Website: cdm.unfccc.int/Reference/Reports/TTreport/TTrep08.pdf Analysis of Technology Transfer in CDM Projects Screenshot References: Analysis of Technology Transfer in CDM Projects[1] Overview "Although the Clean Development Mechanism (CDM) does not have an explicit technology transfer mandate, it may contribute to technology transfer by financing emission reduction projects using technologies currently not available in the host countries. This report analyzes the claims of

9

CDM-PAT: a decision support tool for the pre-assessment of CDM projects  

Science Conference Proceedings (OSTI)

One of the major problems in selecting attractive Clean development mechanism (CDM) projects is the assessment of the potential projects regarding several eligibility criteria set by the CDM modalities and procedures as well as the assessment ... Keywords: DSS, clean development mechanism, energy decision support systems, energy efficiency, energy technology, pre-assessment, pre-evaluation, project proposals, renewable energy sources, sustainable development, web-based project assessment

Alexandros Flamos; Haris Doukas; Konstantinos D. Patlitzianas; John Psarras

2005-04-01T23:59:59.000Z

10

Clean Development Mechanism Pipeline | Open Energy Information  

Open Energy Info (EERE)

Clean Development Mechanism Pipeline Clean Development Mechanism Pipeline Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Clean Development Mechanism Pipeline Agency/Company /Organization: UNEP-Risoe Centre, United Nations Environment Programme Sector: Energy, Land Topics: Finance, Implementation, Background analysis Resource Type: Dataset Website: www.cdmpipeline.org/overview.htm Clean Development Mechanism Pipeline Screenshot References: CDM Pipeline[1] Overview "The CDM/JI Pipeline Analysis and Database contains all CDM/JI projects that have been sent for validation/determination. It also contains the baseline & monitoring methodologies, a list of DOEs and several analyses. This monthly newsletter shows a sample of the analysis in the Pipeline. If you want more information, then look into the left column and click on the

11

Wind Power and the Clean Development Mechanism  

E-Print Network (OSTI)

20 40 60 80 100 120 Biomass energy Hydro Agriculture EE Industry Wind Landfill gas Fossil fuel switchWind Power and the Clean Development Mechanism Romeo Pacudan PhD Wind Energy Development, Philippines EC-ASEAN ENERGY FACILITY #12;CD4CDM project Objective · Help developing countries participate

12

The UNEP Project CD4CDM BUNDLING SMALL-SCALE CDM PROJECTS  

E-Print Network (OSTI)

costs and low sales realizations deter project developers from offering Carbon Emission Reductions (CER it hard to bear high up-front costs and risk capital for running projects through the CDM marketThe UNEP Project CD4CDM BUNDLING SMALL-SCALE CDM PROJECTS December, 2004 H V Kumar S V Kulkarni

13

The road to the successful clean development mechanism : lessons from the past  

E-Print Network (OSTI)

The Clean Development Mechanism (CDM) has evolved at a surprising speed since 2003 and is considered to have made positive contributions to the development of greenhouse-gas-reducing projects in developing countries. Taking ...

Song, Jaemin

2010-01-01T23:59:59.000Z

14

Event:Third Workshop on Enhancing the Regional Distribution of CDM Projects  

Open Energy Info (EERE)

Enhancing the Regional Distribution of CDM Projects Enhancing the Regional Distribution of CDM Projects in Asia and the Pacific Jump to: navigation, search Calendar.png Third Workshop on Enhancing the Regional Distribution of CDM Projects in Asia and the Pacific: on 2012/07/18 "This workshop is being organized by the Asian Development Bank (ADB), the Institute for Global Environmental Strategies (IGES) and the UN Framework Convention on Climate Change (UNFCCC) Secretariat, in collaboration with the UN Environment Programme (UNEP) Risoe Centre. The aim of the workshop is to provide a platform for participants to share best practices and key lessons, enhance their knowledge on the Clean Development Mechanism (CDM) and discuss technical, financial, and policy issues specific to their projects." Event Details

15

Case Studies of Greenhouse Gas Emissions Offset Projects Implemented in the United Nations Clean Development Mechanism  

Science Conference Proceedings (OSTI)

This paper describes case studies of greenhouse gas (GHG) emissions offset project activities undertaken within the United Nations Clean Development Mechanism (CDM) program. This paper is designed to communicate key lessons learned from the implementation of different types of GHG emissions offsets projects in the CDM to policy makers in the U.S. who may be interested in developing national, regional or state-based GHG offsets programs. This paper also is designed to provide important insights to entitie...

2011-12-21T23:59:59.000Z

16

CDM Accreditation Panel CDM AP | Open Energy Information  

Open Energy Info (EERE)

CDM Accreditation Panel CDM AP CDM Accreditation Panel CDM AP Jump to: navigation, search Name CDM Accreditation Panel (CDM-AP) Place Bonn, Germany Zip 53153 Product The CDM accreditation panel (CDM-AP) prepares the decision making of the Executive Board in accordance with the procedure for accrediting operational entities. Coordinates 50.7323°, 7.101695° 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":50.7323,"lon":7.101695,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

17

CDM as a Solution for the Present World Energy Problems (An Overview with Respect to the Building and Construction Sector)  

E-Print Network (OSTI)

One of the important responses of Kyoto Protocol towards mitigation of global warming is the Clean Development Mechanism (CDM), which has garnered large emphasis amidst the global carbon market in terms of Certified Emission Reductions (CERs). While CDM aims to achieve sustainable development in the energy production and its consumption in developing countries, the results achieved through its implementation are still uncertain. Presently, the domestic and commercial buildings are responsible for more than one third of the total conventional energy use and associated greenhouse gas emissions. The Inter-governmental Panel on Climate Change (IPCC) stated that, the building sector has the largest potential for significantly reducing greenhouse gas emissions. This paper envisages the important aspects such as, the non-inclusion of construction sector projects in CDM and its reasons, the role of energy efficiency buildings in the energy conservation arena and the new challenges being faced, while implementing the CDM portfolio in building energy sector.

Sudarsan, N.; Jayaraj, S.; Sreekanth, K. J.

2010-01-01T23:59:59.000Z

18

National Clean Development Mechanism Office India | Open Energy Information  

Open Energy Info (EERE)

Development Mechanism Office India Development Mechanism Office India Jump to: navigation, search Name National Clean Development Mechanism Office (India) Place New Delhi, India Product The Designated National Authority for CDM in India. References National Clean Development Mechanism Office (India)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. National Clean Development Mechanism Office (India) is a company located in New Delhi, India . References ↑ "National Clean Development Mechanism Office (India)" Retrieved from "http://en.openei.org/w/index.php?title=National_Clean_Development_Mechanism_Office_India&oldid=349060" Categories: Clean Energy Organizations Companies Organizations

19

Cold Fronts in CDM clusters  

E-Print Network (OSTI)

Recently, high-resolution Chandra observations revealed the existence of very sharp features in the X-ray surface brightness and temperature maps of several clusters (Vikhlinin et. al., 2001). These features, called ``cold fronts'', are characterized by an increase in surface brightness by a factor >2 over 10-50 kpc, accompanied by a drop in temperature of a similar magnitude. The existence of such sharp gradients can be used to put interesting constraints on the physics of the intracluster medium (ICM), if their mechanism and longevity are well understood. Here, we present results of a search for cold fronts in high-resolution simulations of galaxy clusters in cold dark matter (CDM) models. We show that sharp gradients with properties similar to those of observed cold fronts naturally arise in cluster mergers when the shocks heat gas surrounding the merging sub-cluster, while its dense core remains relatively cold. The compression induced by supersonic motions and shock heating during the merger enhance the amplitude of gas density and temperature gradients across the front. Our results indicate that cold fronts are non-equilibrium transient phenomena and can be observed for a period of less than a billion years. We show that the velocity and density fields of gas surrounding the cold front can be very irregular which would complicate analyses aiming to put constraints on the physical conditions of the intracluster medium in the vicinity of the front.

Daisuke Nagai; Andrey V. Kravtsov

2002-06-26T23:59:59.000Z

20

Sustainable waste management in Africa through CDM projects  

SciTech Connect

Highlights: Black-Right-Pointing-Pointer This is a compendium on GHG reductions via improved waste strategies in Africa. Black-Right-Pointing-Pointer This note provides a strategic framework for Local Authorities in Africa. Black-Right-Pointing-Pointer Assists LAs to select Zero Waste scenarios and achieve sustained GHG reduction. - Abstract: Only few Clean Development Mechanism (CDM) projects (traditionally focussed on landfill gas combustion) have been registered in Africa if compared to similar developing countries. The waste hierarchy adopted by many African countries clearly shows that waste recycling and composting projects are generally the most sustainable. This paper undertakes a sustainability assessment for practical waste treatment and disposal scenarios for Africa and makes recommendations for consideration. The appraisal in this paper demonstrates that mechanical biological treatment of waste becomes more financially attractive if established through the CDM process. Waste will continue to be dumped in Africa with increasing greenhouse gas emissions produced, unless industrialised countries (Annex 1) fund carbon emission reduction schemes through a replacement to the Kyoto Protocol. Such a replacement should calculate all of the direct and indirect carbon emission savings and seek to promote public-private partnerships through a concerted support of the informal sector.

Couth, R. [CRECHE, Centre for Research in Environmental, Coastal and Hydrological Engineering, School of Engineering, University of KwaZulu-Natal, Durban 4041 (South Africa); Trois, C., E-mail: troisc@ukzn.ac.za [CRECHE, Centre for Research in Environmental, Coastal and Hydrological Engineering, School of Engineering, University of KwaZulu-Natal, Durban 4041 (South Africa)

2012-11-15T23:59:59.000Z

Note: This page contains sample records for the topic "development mechanism cdm" 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

Shanghai CDM Service Center | Open Energy Information  

Open Energy Info (EERE)

Center Center Jump to: navigation, search Name Shanghai CDM Service Center Place Shanghai, Shanghai Municipality, China Sector Wind energy Product Developing the 45MW Shandong Lubei wind power project. Coordinates 31.247709°, 121.472618° 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":31.247709,"lon":121.472618,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

22

Predicting Substructure in CDM Haloes  

E-Print Network (OSTI)

Abstract. Observations of multiple-image gravitational lens systems suggest that the projected mass distributions of galaxy haloes may contain substantial inhomogeneities. The fraction of the halo mass in dense substructure is still highly uncertain, but could be as large as a few percent. While halo substructure is seen in numerical simulations of CDM haloes, little of this substructure survives in the innermost regions of haloes, and thus the observational claims for substructure at small projected radii are slightly surprising. There is evidence, however, that even the highest-resolution simulations published to-date are still limited by numerical effects that heat and disrupt substructure artificially in high-density regions. By comparing numerical and semi-analytic (SA) models of halo substructure, we show that current simulations probably underestimate the mass fraction in substructure at small projected radii, by a factor of at least 23. We discuss the prospects for using lensing observations as a fundamental test of the nature of dark matter. 1. Introduction: The

James E. Taylor; Arif Babul

2004-01-01T23:59:59.000Z

23

Preliminary assessment of potential CDM early start projects in Brazil  

Science Conference Proceedings (OSTI)

The Brazil/US Aspen Global Forum on Climate Change Policies and Programs has facilitated a dialogue between key Brazil and US public and private sector leaders on the subject of the Clean Development Mechanism (CDM). With support from the US government, a cooperative effort between Lawrence Berkeley National Laboratory and the University of Sao Paulo conducted an assessment of a number of projects put forth by Brazilian sponsors. Initially, we gathered information and conducted a screening assessment for ten projects in the energy sector and six projects in the forestry sector. Some of the projects appeared to offer greater potential to be attractive for CDM, or had better information available. We then conducted a more detailed assessment of 12 of these projects, and two other projects that were submitted after the initial screening. An important goal was to assess the potential impact of Certified Emission Reductions (CERs) on the financial performance of projects. With the exception of the two forestry-based fuel displacement projects, the impact of CERs on the internal rate of return (IRR) is fairly small. This is true for both the projects that displace grid electricity and those that displace local (diesel-based) electricity production. The relative effect of CERs is greater for projects whose IRR without CERs is low. CERs have a substantial effect on the IRR of the two short-rotation forestry energy substitution projects. One reason is that the biofuel displaces coke and oil, both of which are carbon-intensive. Another factor is that the product of these projects (charcoal and woodfuel, respectively) is relatively low value, so the revenue from carbon credits has a strong relative impact. CERs also have a substantial effect on the NPV of the carbon sequestration projects. Financial and other barriers pose a challenge for implementation of most of the projects. In most cases, the sponsor lacks sufficient capital, and loans are available only at high interest rate and with substantial guarantee. A few of the projects might go ahead without the benefit of CERs, but most probably would not. Whether the projected revenue from CERs would be sufficient to induce sponsors to proceed with the projects is an important issue that requires further investigation. All of the projects contribute to economic development in Brazil. The forestry projects in particular would create a significant number of rural jobs, and contribute income to rural communities. Some of the carbon sequestration projects would provide environmental benefits with respect to protection of biodiversity and soil.

Meyers, S.; Sathaye, J.; Lehman, B.; Schumacher, K.; van Vliet, O.; Moreira, J.R.

2000-11-01T23:59:59.000Z

24

Mechanisms in Plant Development  

SciTech Connect

This meeting has been held every other year for the past twenty-two years and is the only regularly held meeting focused specifically on plant development. Topics covered included: patterning in developing tissues; short and long distance signaling; differentiation of cell types; the role of epigenetics in development; evolution; growth.

Hake, Sarah [USDA ARS Plant Gene Expression Center

2013-08-21T23:59:59.000Z

25

CDM Emission Reductions Calculation Sheet Series | Open Energy Information  

Open Energy Info (EERE)

CDM Emission Reductions Calculation Sheet Series CDM Emission Reductions Calculation Sheet Series Jump to: navigation, search Tool Summary LAUNCH TOOL Name: CDM Emission Reductions Calculation Sheet Series Agency/Company /Organization: Institute for Global Environmental Strategies Sector: Energy, Water Focus Area: Agriculture, Greenhouse Gas Topics: Baseline projection, GHG inventory Resource Type: Online calculator User Interface: Spreadsheet Website: www.iges.or.jp/en/cdm/report_ers.html Cost: Free CDM Emission Reductions Calculation Sheet Series Screenshot References: CDM Emission Reductions Calculation Sheet Series[1] "IGES ERs Calculation Sheet aims at providing a simplified spreadsheet for demonstrating emission reductions based on the approved methodologies corresponding to eligible project activities. The sheet will provide you

26

Guide to Clean Development Mechanism Projects Related to Municipal Solid  

Open Energy Info (EERE)

Guide to Clean Development Mechanism Projects Related to Municipal Solid Guide to Clean Development Mechanism Projects Related to Municipal Solid Waste Management Jump to: navigation, search Tool Summary Name: A Guide to Clean Development Mechanism Projects Related to Municipal Solid Waste Management Agency/Company /Organization: United Nations Economic and Social Commission for Asia and the Pacific Sector: Energy, Land Focus Area: - Landfill Gas, - Waste to Energy Topics: Implementation, Co-benefits assessment Resource Type: Guide/manual, Lessons learned/best practices Website: www.unescap.org/esd/environment/publications/cdm/Guide.pdf UN Region: Central Asia, Eastern Asia, South-Eastern Asia, "Pacific" is not in the list of possible values (Eastern Africa, Middle Africa, Northern Africa, Southern Africa, Western Africa, Caribbean, Central America, South America, Northern America, Central Asia, Eastern Asia, Southern Asia, South-Eastern Asia, Western Asia, Eastern Europe, Northern Europe, Southern Europe, Western Europe, Australia and New Zealand, Melanesia, Micronesia, Polynesia, Latin America and the Caribbean) for this property.

27

Implementation of the Clean Development Mechanism in Asia and the Pacific |  

Open Energy Info (EERE)

Implementation of the Clean Development Mechanism in Asia and the Pacific Implementation of the Clean Development Mechanism in Asia and the Pacific Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Implementation of the Clean Development Mechanism in Asia and the Pacific Agency/Company /Organization: United Nations Economic and Social Commission for Asia and the Pacific Sector: Energy Focus Area: Energy Efficiency, Industry Topics: Implementation, Policies/deployment programs Resource Type: Guide/manual, Lessons learned/best practices Website: www.unescap.org/esd/publications/CDM.pdf UN Region: Central Asia, Eastern Asia, South-Eastern Asia, "Pacific" is not in the list of possible values (Eastern Africa, Middle Africa, Northern Africa, Southern Africa, Western Africa, Caribbean, Central America, South America, Northern America, Central Asia, Eastern Asia, Southern Asia, South-Eastern Asia, Western Asia, Eastern Europe, Northern Europe, Southern Europe, Western Europe, Australia and New Zealand, Melanesia, Micronesia, Polynesia, Latin America and the Caribbean) for this property.

28

Voids in the LCRS versus CDM Models  

E-Print Network (OSTI)

We have analyzed the distribution of void sizes in the two-dimensional slices of the Las Campanas Redshift Survey (LCRS). Fourteen volume-limited subsamples were extracted from the six slices to cover a large part of the survey and to test the robustness of the results against cosmic variance. Thirteen samples were randomly culled to produce homogeneously selected samples. We then studied the relationship between the cumulative area covered by voids and the void size as a property of the void hierarchy. We find that the distribution of void sizes scales with the mean galaxy separation, $\\lambda$. In particular, we find that the size of voids covering half of the area is given by $D_{med} \\approx \\lambda + (12\\pm3) \\h^{-2}$Mpc. Next, by employing an environmental density threshold criterion to identify mock galaxies, we were able to extend this analysis to mock samples from dynamical $n$-body simulations of Cold Dark Matter (CDM) models. To reproduce the observed void statistics, overdensity thresholds of $\\delta_{th} \\approx 0 ... 1$ are necessary. We have compared standard (SCDM), open (OCDM), vacuum energy dominated ($\\Lambda$CDM), and broken scale invariant CDM models (BCDM): we find that both the void coverage distribution and the two-point correlation function provide important and complementary information on the large-scale matter distribution. The dependence of the void statistics on the threshold criterion for the mock galaxy indentification shows that the galaxy biasing is more crucial for the void size distribution than are differences between the cosmological models.

V. Mueller; S. Arbabi-Bidgoli; J. Einasto; D. Tucker

2000-05-03T23:59:59.000Z

29

Event:CDM Assessment Training (September 2011) | Open Energy...  

Open Energy Info (EERE)

September 2011) Jump to: navigation, search Calendar.png CDM Assessment Training (September 2011): on 20110906 "A training workshop will be held for members of the Clean...

30

Event:CDM Assessment Training (November 2011) | Open Energy Informatio...  

Open Energy Info (EERE)

November 2011) Jump to: navigation, search Calendar.png CDM Assessment Training (November 2011): on 20111101 "A training workshop will be held for members of the Clean...

31

The Anisotropic Spatial Distribution of CDM Subhalos  

E-Print Network (OSTI)

I review recent results on the spatial distribution of substructure in CDM halos. I show that the spatial distribution of subhalos is anisotropic and generally prolate with a long axis that is closely aligned with the long axis of the total mass distribution of the host halo. I show that the correlation between the subhalo distribution and the long axis of the host halo is strong both in dissipationless and dissipational gasdynamical simulations. More massive subhalos tend to be more strongly clustered along the major axis of the host halo reflecting filamentary accretion. The anisotropy of subhalos has potential implications for the interpretation of several observations in the Local Group and beyond. For example, I show that while the mean projected mass fraction in substructure in the central regions of CDM halos is fsub \\approx 0.4%, fsub is a strong function of projection angle and is ~ 5 to 6 times higher for projections that are nearly collinear with the major axis of the host halo.

Zentner, A R

2005-01-01T23:59:59.000Z

32

Mechanisms of brain ventricle development  

E-Print Network (OSTI)

The brain ventricles are a conserved system of fluid-filled cavities within the brain that form during the earliest stages of brain development. Abnormal brain ventricle development has been correlated with neurodevelopmental ...

Lowery, Laura Anne

2008-01-01T23:59:59.000Z

33

Implementing the UN Kyoto Protocol: Clean Development Mechanism...  

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

(Sustainable Energy Advisors) report on Chinese CDM activities, based on their related energy efficiency consulting activities undertaken for clients including the World Bank,...

34

CDM-based design and performance evaluation of a robust AQM method for dynamic TCP/AQM networks  

Science Conference Proceedings (OSTI)

A new robust AQM strategy for dynamically varying TCP/AQM networks is proposed and its performance is investigated through computer simulations in MATLAB and ns-2 environments. The developed AQM is designed based on coefficient diagram method (CDM), ... Keywords: Active queue management, Coefficient diagram method, Model reference adaptive control, Recursive parameter estimation

N. Bigdeli; M. Haeri

2009-01-01T23:59:59.000Z

35

UNEP-Risoe CDM/JI Pipeline Analysis and Database | Open Energy Information  

Open Energy Info (EERE)

UNEP-Risoe CDM/JI Pipeline Analysis and Database UNEP-Risoe CDM/JI Pipeline Analysis and Database (Redirected from UNEP Risoe CDM/JI Pipeline Analysis and Database) Jump to: navigation, search Tool Summary LAUNCH TOOL Name: UNEP Risoe CDM/JI Pipeline Analysis and Database Agency/Company /Organization: UNEP-Risoe Centre Topics: Finance, Market analysis, Background analysis Website: cdmpipeline.org/ References: CDM/JI Pipeline Homepage [1] "The CDM/JI Pipeline Analysis and Database contains all CDM/JI projects that have been sent for validation/determination. It also contains the baseline & monitoring methodologies, a list of DOEs and several analyses." [1] References ↑ 1.0 1.1 [1] Retrieved from "http://en.openei.org/w/index.php?title=UNEP-Risoe_CDM/JI_Pipeline_Analysis_and_Database&oldid=383313"

36

Development of a Mechanics Reasoning Inventory  

E-Print Network (OSTI)

Strategic knowledge is required to appropriately organize procedures and concepts to solve problems. We are developing a standardized instrument assessing strategic knowledge in the domain of introductory mechanics. This ...

Pawl, Andrew

2012-01-01T23:59:59.000Z

37

The First Generation of Stars in Lambda-CDM Cosmology  

DOE Green Energy (OSTI)

We have performed a large set of high-resolution cosmological simulations using smoothed particle hydrodynamics (SPH) to study the formation of the first luminous objects in the {Lambda}CDM cosmology. We follow the collapse of primordial gas clouds in eight early structures and document the scatter in the properties of the first star-forming clouds. Our first objects span formation redshifts from z {approx} 10 to z {approx} 50 and cover an order of magnitude in halo mass. We find that the physical properties of the central star-forming clouds are very similar in all of the simulated objects despite significant differences in formation redshift and environment. This suggests that the formation path of the first stars is largely independent of the collapse redshift; the physical properties of the clouds have little correlation with spin, mass, or assembly history of the host halo. The collapse of proto-stellar objects at higher redshifts progresses much more rapidly due to the higher densities, which accelerates the formation of molecular hydrogen, enhances initial cooling and shortens the dynamical timescales. The mass of the star-forming clouds cover a broad range, from a few hundred to a few thousand solar masses, and exhibit various morphologies: some have disk-like structures which are nearly rotational supported; others form flattened spheroids; still others form bars. All of them develop a single protostellar ''seed'' which does not fragment into multiple objects up to the moment that the central gas becomes optically thick to H{sub 2} cooling lines. At this time, the instantaneous mass accretion rate onto the centre varies significantly from object to object, with disk-like structures having the smallest mass accretion rates. The formation epoch and properties of the star-forming clouds are sensitive to the values of cosmological parameters.

Gao, Liang; /Durham U. /Garching, Max Planck Inst.; Abel, T.; /KIPAC, Menlo Park; Frenk, C.S.; Jenkins, A.; /Durham U.; Springel, V.; /Garching, Max Planck Inst.; Yoshida,; /Nagoya U.

2006-10-10T23:59:59.000Z

38

Can $f(T)$ gravity theories mimic $?$CDM cosmic history  

E-Print Network (OSTI)

Recently the teleparallel Lagrangian density described by the torsion scalar T has been extended to a function of T. The $f(T)$ modified teleparallel gravity has been proposed as the natural gravitational alternative for dark energy to explain the late time acceleration of the universe. In order to reconstruct the function $f(T)$ by demanding a background $\\Lambda$CDM cosmology we assume that, (i) the background cosmic history provided by the flat $\\Lambda$CDM (the radiation ere with $\\omega_{eff}=1/3$, matter and de Sitter eras with $\\omega_{eff}=0$ and $\\omega_{eff}=-1$, respectively) (ii) the radiation dominate in the radiation era with $\\Omega_{0r}=1$ and the matter dominate during the matter phases when $\\Omega_{0m}=1$. We find the cosmological dynamical system which can obey the $\\Lambda$CDM cosmic history. In each era, we find a critical lines that, the radiation dominated and the matter dominated are one points of them in the radiation and matter phases, respectively. Also, we drive the cosmologically viability condition for these models. We investigate the stability condition with respect to the homogeneous scalar perturbations in each era and we obtain the stability conditions for the fixed points in each eras. Finally, we reconstruct the function $f(T)$ which mimics cosmic expansion history.

M. R. Setare; N. Mohammadipour

2013-01-12T23:59:59.000Z

39

The Clean Development Mechanism: An opportunity to finance decentralised sanitation?  

E-Print Network (OSTI)

-1 Key data for the landfill gas flaring project 28 Table 3-2 Key data for the decentralised composting projects within the CDM 17 1.4.5 Options to finance greenhouse gas abating projects outside the CDM 17 1.2.1 Options to share the risk between seller and buyer 24 2.2.2 CER pricing 25 3 Case Studies 27 3.1 Landfill

Richner, Heinz

40

The mechanical control of nervous system development  

E-Print Network (OSTI)

., Sweedler, J. V. and Saif, T. A. (2012) 'Mechanical tension modulates local and global vesicle dynamics in neurons', Cell Mol Bioeng 5(2): 155-164. Amin, L., Ercolini, E., Shahapure, R., Migliorini, E. and Torre, V. (2012) 'The role of membrane stiffness... and actin turnover on the force exerted by DRG lamellipodia', Biophys J 102(11): 2451-60. Anava, S., Greenbaum, A., Ben Jacob, E., Hanein, Y. and Ayali, A. (2009) 'The regulative role of neurite mechanical tension in network development', Biophys J 96...

Franze, Kristian

2013-08-16T23:59:59.000Z

Note: This page contains sample records for the topic "development mechanism cdm" 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

Emission assessment at the Burj Hammoud inactive municipal landfill: Viability of landfill gas recovery under the clean development mechanism  

SciTech Connect

Highlights: Black-Right-Pointing-Pointer LFG emissions are measured at an abandoned landfill with highly organic waste. Black-Right-Pointing-Pointer Mean headspace and vent emissions are 0.240 and 0.074 l CH{sub 4}/m{sup 2} hr, respectively. Black-Right-Pointing-Pointer At sites with high food waste content, LFG generation drops rapidly after site closure. Black-Right-Pointing-Pointer The viability of LFG recovery for CDMs in developing countries is doubtful. - Abstract: This paper examines landfill gas (LFG) emissions at a large inactive waste disposal site to evaluate the viability of investment in LFG recovery through the clean development mechanism (CDM) initiative. For this purpose, field measurements of LFG emissions were conducted and the data were processed by geospatial interpolation to estimate an equivalent site emission rate which was used to calibrate and apply two LFG prediction models to forecast LFG emissions at the site. The mean CH{sub 4} flux values calculated through tessellation, inverse distance weighing and kriging were 0.188 {+-} 0.014, 0.224 {+-} 0.012 and 0.237 {+-} 0.008 l CH{sub 4}/m{sup 2} hr, respectively, compared to an arithmetic mean of 0.24 l/m{sup 2} hr. The flux values are within the reported range for closed landfills (0.06-0.89 l/m{sup 2} hr), and lower than the reported range for active landfills (0.42-2.46 l/m{sup 2} hr). Simulation results matched field measurements for low methane generation potential (L{sub 0}) values in the range of 19.8-102.6 m{sup 3}/ton of waste. LFG generation dropped rapidly to half its peak level only 4 yrs after landfill closure limiting the sustainability of LFG recovery systems in similar contexts and raising into doubt promoted CDM initiatives for similar waste.

El-Fadel, Mutasem, E-mail: mfadel@aub.edu.lb [Department of Civil and Environmental Engineering, American University of Beirut (Lebanon); Abi-Esber, Layale; Salhab, Samer [Department of Civil and Environmental Engineering, American University of Beirut (Lebanon)

2012-11-15T23:59:59.000Z

42

Joint Implementation, Clean Develop-ment Mechanism and Tradable Permits  

E-Print Network (OSTI)

Joint Implementation, Clean Develop- ment Mechanism and Tradable Permits International Regulation) funded project `C02 permits in Danish and European energy policy'. .. Rise-R- 1197(EN) #12;WORKING PAPER the institutionalji-amework forJI it is important to know the incentives and motivations of the dlj$erent groups

43

Event:WBI-Clean Development Mechanism Programme of Activities...  

Open Energy Info (EERE)

WBI-Clean Development Mechanism Programme of Activities: Challenges and Opportunities Jump to: navigation, search Calendar.png WBI-Clean Development Mechanism Programme of...

44

National Strategy Study on the Clean Development Mechanism in...  

Open Energy Info (EERE)

on the Clean Development Mechanism in Indonesia Jump to: navigation, search Name National Strategy Study on the Clean Development Mechanism in Indonesia AgencyCompany...

45

{Lambda}CDM universe in f(R) gravity  

Science Conference Proceedings (OSTI)

Several different explicit reconstructions of f(R) gravity are obtained from the background Friedmann-Laimatre-Robertson-Walker expansion history. It is shown that the only theory whose Lagrangian is a simple function of the Ricci scalar R, that admits an exact {Lambda}CDM expansion history, is standard general relativity with a positive cosmological constant and the only way to obtain this behavior of the scale factor for more general functions of R is to add additional degrees of freedom to the matter sector.

Dunsby, Peter K. S. [Centre for Astrophysics, Cosmology and Gravitation, University of Cape Town, Rondebosch, 7701 (South Africa); Department of Mathematics and Applied Mathematics, University of Cape Town, 7701 Rondebosch, Cape Town (South Africa); South African Astronomical Observatory, Observatory 7925, Cape Town (South Africa); Elizalde, Emilio; Saez-Gomez, Diego [Institut d'Estudis Espacials de Catalunya, ICE (IEEC-CSIC), Campus UAB, Facultat Ciencies, Torre C5-Par-2a pl, E-08193 Bellaterra, Barcelona (Spain); Goswami, Rituparno [Centre for Astrophysics, Cosmology and Gravitation, University of Cape Town, Rondebosch, 7701 (South Africa); Department of Mathematics and Applied Mathematics, University of Cape Town, 7701 Rondebosch, Cape Town (South Africa); Odintsov, Sergei [Institut d'Estudis Espacials de Catalunya, ICE (IEEC-CSIC), Campus UAB, Facultat Ciencies, Torre C5-Par-2a pl, E-08193 Bellaterra, Barcelona (Spain); Institucio Catalana de Recerca i Estudis Avancats, Barcelona (Spain)

2010-07-15T23:59:59.000Z

46

Configuration Data Management (CDM) on a Shoestring Identifying and Utilizing an Existing Configuration and Data Management Infrastructure  

Science Conference Proceedings (OSTI)

The spreading need for and use of configuration and data management (CDM) standards has highlighted a number of challenges to the companies that need to implement those standards. For companies and organizations that are new to CDM or have limited CDM capabilities, one of the major dilemmas faced is identifying how and where to start. In many cases there is a need to contend with a legacy of poorly identified items and information and an immature or non-existent CDM infrastructure (processes, procedures, people, and information systems). To the company management and CDM professional this poses a seemingly insurmountable task of putting in place a CDM infrastructure that provides the needed benefits while keeping within an acceptable cost and schedule. This paper deals with initially establishing the CDM infrastructure using the tools that a company already has available. The paper identifies features of common software applications that can be used to implement CDM principles.

VANN, J.M.

2000-09-25T23:59:59.000Z

47

Process Development and Microstructure and Mechanical Property ...  

Science Conference Proceedings (OSTI)

experience a large radial thermal and mechanical loading gradient during operation. .... treatment. Figure 4 shows the predicted temperature profile for the large.

48

Conceptual Development of Quantum Mechanics: Experiences with the Visual Quantum Mechanics Materials*  

E-Print Network (OSTI)

Conceptual Development of Quantum Mechanics: Experiences with the Visual Quantum Mechanics using a portion of the materials developed by the Visual Quantum Mechanics (VQM) project1 as part of our recent efforts to investigate student understanding of basic quantum mechanics concepts. The VQM

Larkin, Teresa L.

49

BULK FLOW OF HALOS IN {Lambda}CDM SIMULATION  

Science Conference Proceedings (OSTI)

Analysis of the Pangu N-body simulation validates that the bulk flow of halos follows a Maxwellian distribution with variance that is consistent with the prediction of the linear theory of structure formation. We propose that the consistency between the observed bulk velocity and theories should be examined at the effective scale of the radius of a spherical top-hat window function yielding the same smoothed velocity variance in linear theory as the sample window function does. We compared some recently estimated bulk flows from observational samples with the prediction of the {Lambda}CDM model we used; some results deviate from expectation at a level of {approx}3{sigma}, but the discrepancy is not as severe as previously claimed. We show that bulk flow is only weakly correlated with the dipole of the internal mass distribution, that the alignment angle between the mass dipole and the bulk flow has a broad distribution peaked at {approx}30 Degree-Sign -50 Degree-Sign , and also that the bulk flow shows little dependence on the mass of the halos used in the estimation. In a simulation of box size 1 h {sup -1} Gpc, for a cell of radius 100 h {sup -1} Mpc the maximal bulk velocity is >500 km s{sup -1}; dipoles of the environmental mass outside the cell are not tightly aligned with the bulk flow, but are rather located randomly around it with separation angles {approx}20 Degree-Sign -40 Degree-Sign . In the fastest cell there is a slightly smaller number of low-mass halos; however, halos inside are clustered more strongly at scales {approx}> 20 h {sup -1} Mpc, which might be a significant feature since the correlation between bulk flow and halo clustering actually increases in significance beyond such scales.

Li Ming; Pan Jun; Feng Longlong; Kang Xi [Purple Mountain Observatory, 2 West Beijing Road, Nanjing 210008 (China); Gao Liang [National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100012 (China); Jing Yipeng; Yang Xiaohu; Lin Weipeng; Zhao Donghai; Zhang Pengjie [Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, 80 Nandan Road, Shanghai 200030 (China); Chi Xuebin; Shan Guihua; Wang Long, E-mail: jpan@bao.ac.cn [Supercomputing Center, Computer Network Information Center, Chinese Academy of Sciences, 4 Zhongguancun Nansijie, Haidian District, Beijing 100190 (China)

2012-12-20T23:59:59.000Z

50

Mod I automotive Stirling engine mechanical development  

SciTech Connect

The Mod I Stirling engine was the first automotive Stirling engine designed specifically for automotive application. Testing of these engines has revealed several deficiencies in engine mechanical integrity which have been corrected by redesign or upgrade. The main deficiencies uncovered during the Mod I program lie in the combustion, auxiliary, main seal, and heater head areas. This paper will address each of the major area deficiencies in detail, and describe the corrective actions taken as they apply to the Mod I and the next Stirling-engine design, the Upgraded Mod I (a redesign to incorporate new materials for cost/weight reduction and improved performance).

Simetkosky, M.

1984-01-01T23:59:59.000Z

51

Guide to Clean Development Mechanism Projects Related to Municipal...  

Open Energy Info (EERE)

Name A Guide to Clean Development Mechanism Projects Related to Municipal Solid Waste Management AgencyCompany Organization United Nations Economic and Social Commission for...

52

Evaluating Clean Development Mechanism Projects in the Cement...  

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

You are here Home Buildings & Plants Evaluating Clean Development Mechanism Projects in the Cement Industry Using a Process-Step Benchmarking Approach Secondary menu...

53

Mechanisms of Texture Development in Lead-Free Piezoelectric ...  

Science Conference Proceedings (OSTI)

The anisotropy in surface energy plays an important role to determine the ... Mechanisms of Texture Development in Lead-Free Piezoelectric Ceramics Made by...

54

Development of ice self-release mechanisms  

DOE Green Energy (OSTI)

This study reports the results of a series of experiments that investigated a thermal storage technology whereby slush ice is grown on a submerged cold surface, and the resultant growth of slush ice releases without auxiliary thermal or mechanical means. The process investigated consists of growing slush ice from an electrolyte solution of low molarity. The cold surface (substrate) upon which the slush ice forms is submerged in the bulk solution. As the buoyancy force on the ice crystals exceeds the adhesion of the slush ice to the cold surface, the slush ice is forced from the substrate and floats away to the top of the solution. The results of this study reveal the relative insensitivity of the growth rate of ice crystals to solution initial bulk concentration over the range of values tested and to concentration of electrolyte during accumulation of ice crystals. The critical parameter appears to be substrate temperature, which cannot be less than {approximately}2{degrees}C below the freezing point temperature of the solution, because apparent adhesion increases rapidly with decreasing substrate temperature. 1 ref., 6 figs., 7 tabs.

Stewart, W.E. Jr. (Missouri Univ., Independence, MO (USA). Energy Research Lab.)

1989-09-01T23:59:59.000Z

55

Understanding the mechanism of base development of HSQ  

DOE Green Energy (OSTI)

We study the dissolution mechanism of HSQ (hydrogen silsesquioxane) in base solutions with the addition of chloride salts to elucidate the development mechanism. Reaction mechanisms are proposed based on the dissolution mechanism of quartz. Development kinetics points to two dose-dependent development mechanisms. Considering ion sizes, both hydrated and non-hydrated, and ion exchange, we propose that a combination of a surface dominated reaction at higher doses and a matrix dominated reaction at lower doses accounts for the high development contrast with a NaOH base/NaCl salt mixture. The interplay between the hydrated and non-hydrated ion size leads to higher contrast developers, such as tetramethyl ammonium hydroxide (TMAH) with NaCl.

Kim, Jihoon; Chao, Weilun; Griedel, Brian; Liang, Xiaogan; Lewis, Mark; Hilken, Dawn; Olynick, Deirdre

2009-06-16T23:59:59.000Z

56

Event:WBI-Clean Development Mechanism Programme of Activities: Challenges  

Open Energy Info (EERE)

WBI-Clean Development Mechanism Programme of Activities: Challenges WBI-Clean Development Mechanism Programme of Activities: Challenges and Opportunities Jump to: navigation, search Calendar.png WBI-Clean Development Mechanism Programme of Activities: Challenges and Opportunities: on 2011/11/07 "Learning objectives: Understand the rationale for developing PoAs Understand the rules, structure and program development cycle Understand the key roles and responsibilities of the coordinating / managing entity (CME) Identify suitable business models for PoA implementation across different sectors Examine possible financing opportunities for PoAs Course Delivery Dates: November 7th -18th, 2011 " Event Details Name WBI-Clean Development Mechanism Programme of Activities: Challenges and Opportunities Date 2011/11/07 Location Online

57

Model Development for Atomic Force Microscope Stage Mechanisms  

E-Print Network (OSTI)

Model Development for Atomic Force Microscope Stage Mechanisms Ralph C. Smith and Andrew G. Hatch of the Philippines Virginia Commonwealth University Diliman, Quezon City 1101 Richmond VA 23284 rcdelros titanate (PZT) devices employed in atomic force microscope stage mechanisms. We focus specifically on PZT

58

Development of Advanced Thermal-Hydrological-Mechanical-Chemical (THMC)  

Open Energy Info (EERE)

Thermal-Hydrological-Mechanical-Chemical (THMC) Thermal-Hydrological-Mechanical-Chemical (THMC) Modeling Capabilities for Enhanced Geothermal Systems Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Development of Advanced Thermal-Hydrological-Mechanical-Chemical (THMC) Modeling Capabilities for Enhanced Geothermal Systems Project Type / Topic 1 Recovery Act: Enhanced Geothermal Systems Component Research and Development/Analysis Project Type / Topic 2 Integrated Chemical, Thermal, Mechanical and Hydrological Modeling Project Description The proposed research will make significant contributions to assessing, developing, and managing EGS systems. The research results will directly address many of key aspects of developing EGS and traditional geothermal reservoirs from site selection and characterization, reservoir creation, stimulation, and validation to reservoir sustainability. In particular, the proposed development provides a practical approach to assess long-term performance of EGS systems as well as optimum design and operation strategies, by consideration of fully coupled processes of thermal, hydrological, geochemical, and rock deformation effects. This research is strategically important to DOE's mission in the national energy resource and security. Furthermore, once the research goals are achieved, the developed simulator will substantially enhance the ability to characterized EGS systems, predict long-term performance of EGS systems, and optimize production strategies, and help energy extraction from EGS reservoir commercially feasible.

59

Can $f(T)$ gravity theories mimic $\\Lambda$CDM cosmic history  

E-Print Network (OSTI)

Recently the teleparallel Lagrangian density described by the torsion scalar T has been extended to a function of T. The $f(T)$ modified teleparallel gravity has been proposed as the natural gravitational alternative for dark energy to explain the late time acceleration of the universe. In order to reconstruct the function $f(T)$ by demanding a background $\\Lambda$CDM cosmology we assume that, (i) the background cosmic history provided by the flat $\\Lambda$CDM (the radiation ere with $\\omega_{eff}=1/3$, matter and de Sitter eras with $\\omega_{eff}=0$ and $\\omega_{eff}=-1$, respectively) (ii) the radiation dominate in the radiation era with $\\Omega_{0r}=1$ and the matter dominate during the matter phases when $\\Omega_{0m}=1$. We find the cosmological dynamical system which can obey the $\\Lambda$CDM cosmic history. In each era, we find a critical lines that, the radiation dominated and the matter dominated are one points of them in the radiation and matter phases, respectively. Also, we drive the cosmologically...

Setare, M R

2013-01-01T23:59:59.000Z

60

The distinctions between $?$CDM and $f(T)$ gravity according Noether symmetry  

E-Print Network (OSTI)

Noether's theory offers us a useful tool to research the conserved quantities and symmetries of the modified gravity theories, among which the $f(T)$ theory, a generally modified teleparallel gravity, has been proposed to account for the dark energy phenomena. By the Noether symmetry approach, we investigate the power-law, exponential and polynomial forms of $f(T)$ theories. All forms of $f(T)$ concerned in this work possess the time translational symmetry, which is related with energy condition or Hamilton constraint. In addition, we find out that the performances of the power-law and exponential forms are not pleasing. It is rational adding a linear term $T$ to $T^n$ as the most efficient amendment to resemble the teleparallel gravity or General Relativity on small scales, ie., the scale of the solar system. The corresponding Noether symmetry indicates that only time translational symmetry remains. Through numerically calculations and observational data-sets constraining, the optimal form $\\alpha T + \\beta T^{-1}$ is obtained, whose cosmological solution resembles the standard $\\Lambda$CDM best with lightly reduced cosmic age which can be alleviated by introducing another $T^m$ term. More important is that we find the significant differences between $\\Lambda$CDM and $f(T)$ gravity. The $\\Lambda$CDM model has also two additional symmetries and corresponding positive conserved quantities, except the two negative conserved quantities.

Han Dong; Jiaxin Wang; Xinhe Meng

2013-04-24T23:59:59.000Z

Note: This page contains sample records for the topic "development mechanism cdm" 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

UNFCCC/CCNUCC CDM Executive Board AM0025 / Version 04  

E-Print Network (OSTI)

Note: Revision in this methodology is applicable to projects activities that are implemented in countries where regulations exist that mandates the treatment of the waste using any of the project activity treatment options mentioned in the methodology. Source Revision to the approved baseline methodology AM0025 Avoided emissions from organic waste through alternative waste treatment processes This baseline methodology is based on the proposed methodologies submitted for the project Organic waste composting at the Matuail landfill site Dhaka, Bangladesh, whose baseline study, monitoring and verification plan and project design document were prepared by prepared by World Wide Recycling B.V. and Waste Concern. It has been revised to include elements from the methodology for the PT Navigat Organic Energy Indonesia Integrated Solid Waste Management (GALFAD) project in Bali, Indonesia, which was prepared by Mitsubishi Securities Co. The methodology also uses elements from the case Municipal solid waste treatment cum energy generation project, Lucknow, India were used, whose baseline study, monitoring and verification plan were prepared by Infrastructure Development Finance Company Limited on behalf of Prototype Carbon Fund. For more information regarding these proposals and their consideration by the Executive Board, please refer to case NM0090: Organic waste composting at the Matuail landfill site Dhaka, Bangladesh ,case NM0127 Integrated solid waste management with methane destruction and energy generation, and case

unknown authors

2006-01-01T23:59:59.000Z

62

Higgs-Boson Benchmarks in Agreement with CDM, EWPO and BPO  

E-Print Network (OSTI)

We explore `benchmark planes' in the Minimal Supersymmetric Standard Model (MSSM) that are in agreement with the measured cold dark matter (CDM) density, electroweak precision observables (EWPO) and B physics observables (BPO). The M_A-tan_beta planes are specified assuming that gaugino masses m_{1/2}, soft trilinear supersymmetry-breaking parameters A_0 and the soft supersymmetry-breaking contributions m_0 to the squark and slepton masses are universal, but not those associated with the Higgs multiplets (the NUHM framework). We discuss the prospects for probing experimentally these benchmark surfaces at the Tevatron collider, the LHC and the ILC.

S. Heinemeyer

2007-10-16T23:59:59.000Z

63

Development of Advanced Thermal-Hydrological-Mechanical-Chemical...  

Open Energy Info (EERE)

of Advanced Thermal-Hydrological-Mechanical-Chemical (THMC) Modeling Capabilities for Enhanced Geothermal Systems Geothermal Project Jump to: navigation, search Last modified on...

64

Paper Number Development of a Hydro-Mechanical Hydraulic Hybrid Drive  

E-Print Network (OSTI)

of a passenger car. The developed hydro-mechanical drive train enables independent control of the torque at eachPaper Number Development of a Hydro-Mechanical Hydraulic Hybrid Drive Train with Independent Wheel for the Center for Compact and Efficient Fluid Power at the University of Minnesota. The hydro-mechanical hybrid

Li, Perry Y.

65

Development of spherical-trailer-type cable reel mechanism  

Science Conference Proceedings (OSTI)

Cabled communication is considered to be more useful than wireless communication for rescue robots used in post-disaster environments. The cable can not only provide good signal communication but also contribute to assist to retrieve the robot. However, ... Keywords: cable oscillating movement, cable reel mechanism, rescue-robot, spatial cam, spherical trailer

Masayuki Arai; Shigeo Hirose

2007-08-01T23:59:59.000Z

66

Mechanisms of Cell Regeneration, Development, and Propagation within a Two-Dimensional Multicell Storm  

Science Conference Proceedings (OSTI)

In this study, mechanisms of cell regeneration, development, and propagation within a two-dimensional multicell storm are investigated using a numerical cloud model. The cell regeneration is explained by the advection mechanism. The following ...

Yuh-Lang Lin; Roy L. Deal; Mark S. Kulie

1998-05-01T23:59:59.000Z

67

Thermal and mechanical development of the East African Rift System  

E-Print Network (OSTI)

The deep basins, uplifted flanks, and volcanoes of the Western and Kenya rift systems have developed along the western and eastern margins of the 1300 km-wide East African plateau. Structural patterns deduced from field, ...

Ebinger, Cynthia Joan

1988-01-01T23:59:59.000Z

68

Remote Shopping Robot System for Fresh Foods Development of the foods grasping mechanism  

E-Print Network (OSTI)

of this mechanism, and shows performance. Key Words: Remote shopping, Mobile Manipulator, Foods handling 1. 1·1 1) 1Remote Shopping Robot System for Fresh Foods ­Development of the foods grasping mechanism­ Tetsuo) Abstract-- Our purpose is developing the remote shopping system as a concrete application. A human uses

Ohya, Akihisa

69

Development of a mechanical counter pressure Bio-Suit System for planetary exploration  

E-Print Network (OSTI)

Extra-vehicular activity (EVA) is critical for human spaceflight and particularly for human planetary exploration. The MIT Man Vehicle Laboratory is developing a Bio-Suit EVA System, based on mechanical counterpressure ...

Sim, Zhe Liang

2006-01-01T23:59:59.000Z

70

Developing Financial Intermediation Mechanisms for Energy Efficiency Investments in Brazil, China and India  

E-Print Network (OSTI)

1 Developing Financial Intermediation Mechanisms for Energy Efficiency Investments in Brazil, China and India Brazil-China-India Workshop on Energy Efficiency Financing Cross country exchange, outreach and dissemination Juan Zak URC Brazil, May 2004 #12;2 What is URC ? · URC is the UNEP Risoe Centre on Energy

71

Model development and calibration for the coupled thermal, hydraulic and mechanical phenomena of the bentonite  

E-Print Network (OSTI)

FOR THE COUPLED THERMAL, HYDRAULIC AND MECHANICAL PHENOMENAby the interdependence of thermal, hydraulic and mechanical

Hernelind, J.

2009-01-01T23:59:59.000Z

72

Development of the RIOT Web Service and Information Technologies to Enable Mechanism Reduction for HCCI Simulations  

DOE Green Energy (OSTI)

New approaches are being explored to facilitate multidisciplinary collaborative research of Homogeneous Charge Compression Ignition (HCCI) combustion processes. In this paper, collaborative sharing of the Range Identification and Optimization Toolkit (RIOT) and related data and models is discussed. RIOT is a developmental approach to reduce the computational of detailed chemical kinetic mechanisms, enabling their use in modeling kinetically controlled combustion applications such as HCCI. These approaches are being developed and piloted as a part of the Collaboratory for Multiscale Chemical Sciences (CMCS) project. The capabilities of the RIOT code are shared through a portlet in the CMCS portal that allows easy specification and processing of RIOT inputs, remote execution of RIOT, tracking of data pedigree, and translation of RIOT outputs to a table view and to a commonly-used mechanism format.

Schuchardt, K; Oluwole, O; Pitz, W J; Rahn, L; Green, W H; Leahy, D; Pancerella, C; Sj?berg, M; Dec, J

2005-06-13T23:59:59.000Z

73

Limitations of rock mechanics in energy-resource recovery and development  

DOE Green Energy (OSTI)

Rock-mechanics problems which limit energy-resource recovery and development are assessed. The most serious limitations were found in the fields of geothermal exploration, mining and in-situ recovery, nuclear-waste disposal, oil and gas recovery, underground storage, and under-ocean tunneling. Recommendations include research to determine and predict porosity, permeability, and fluid flow in situ; research to develop better methods for determining and obtaining shallow and deep in situ stresses; research to improve the ability to map fracture patterns, particularly major fractures and faults, at depth; research to improve the understanding of rock-fragmentation processes for increasing the effectiveness of drilling and excavation systems; research to increase understanding of the relation of laboratory-measured quantities to in situ conditions; and research to provide the thermophysical and thermomechanical properties of rock, including fractured rock. (JRD)

Not Available

1978-04-14T23:59:59.000Z

74

A Further Study of the Mechanisms of Cell Regeneration, Propagation, and Development within Two-Dimensional Multicell Storms  

Science Conference Proceedings (OSTI)

The mechanisms of cell regeneration, development, and propagation within a two-dimensional multicell storm proposed by Lin, Deal, and Kulie (hereafter LDK) were further investigated by conducting a series of sensitivity tests. LDK's advection ...

Yuh-Lang Lin; Lara E. Joyce

2001-10-01T23:59:59.000Z

75

Numerical Experiments on the Mechanisms for the Development and Maintenance of Long-Lived Squall Lines in Dry Environments  

Science Conference Proceedings (OSTI)

The mechanisms responsible for the development and maintenance of long-lived squall lines in dry environments are investigated through two-dimensional numerical experiments by using a nonhydrostatic cloud model. The squall line environments are ...

Tetsuya Takemi; Takehiko Satomura

2000-06-01T23:59:59.000Z

76

On the development of a multiple-compensation mechanism for business transactions  

Science Conference Proceedings (OSTI)

Compensation is a widely used concept for maintaining atomicity in both the advanced transaction models and transactional workflow systems. Some Web service protocols also adopt the compensation mechanism for failure recovery when providing transaction ...

Zaihan Yang; Chengfei Liu

2006-06-01T23:59:59.000Z

77

2.875 Mechanical Assembly and Its Role in Product Development, Fall 2002  

E-Print Network (OSTI)

Introduces mechanical and economic models of assemblies and assembly automation on two levels. "Assembly in the small" comprises basic engineering models of rigid and compliant part mating and explains the operation of the ...

Whitney, Daniel E.

78

Clean Development Mechanism agricultural methodologies could help California to achieve AB 32 goals  

E-Print Network (OSTI)

A Framework for Change. Sacramento, CA. www.arb.ca.gov/cc/11-32, October 20, 2011. Sacramento, CA. www.arb. ca.gov/Compliance Mechanisms. Sacramento, CA. www. arb.ca.gov/

Dinar, Ariel; Larson, Donald F; Frisbie, J. Aapris

2012-01-01T23:59:59.000Z

79

Development of a model to calculate mechanical specific energy for air hammer drilling systems  

E-Print Network (OSTI)

Drilling for hydrocarbons is an expensive operation; consequently operators try to save costs by reducing the number of days spent during this operation. Drilling efficiently with the highest attainable rate of penetration is one of the ways drilling time could be reduced. Real-time monitoring of Mechanical Specific Energy will enable drilling engineers to detect when the optimum drilling rate for a given set of drilling parameters is not being achieved. Numerous works have been done on air hammers and rock Mechanical Specific Energy. Previous research has shown that Mechanical Specific Energy, which is a ratio that quantifies the input energy and Rate of Penetration (ROP) of a drilling system, is directly proportional to the rock compressive strength being drilled. The Mechanical Specific Energy model utilizes drilling parameters such as ROP, Weight on bit (WOB), RPM, torque, flow-rate, bottom-hole pressure, and bottom-hole temperature to show how effectively energy being put into the drill string is being converted to ROP at the bit. This research effort proposes a new model to calculate the Mechanical Specific Energy for air hammer drilling systems. A thermodynamic model for the air hammer from which the piston impact velocity and kinetic energy is obtained is presented. To be able to estimate the effective energy delivered to the rock by the hammer, the stress wave propagation model is used and factored into the Mechanical Specific Energy model. The Mechanical Specific Energy values obtained from the application of this model provide a qualitative indicator of formation pressure changes and a means for drilling engineers to detect when optimum drilling rate is not being achieved. It can be deduced from the model that the impact energy of the hammer is greatly affected by the pressure drop across the hammer and since the hammer accounts for about sixty percent of the energy required for destroying the rock, the ROP can be varied by varying the pressure drop across the hammer.

Okuchaba, Boma Jeremiah

2008-05-01T23:59:59.000Z

80

Energy Efficiency Investments in Public Facilities - Developing a Pilot Mechanism for Energy Performance Contracts (EPCs) in Russia  

SciTech Connect

: Russian public sector buildings tend to be very inefficient, which creates vast opportunities for savings. This report overviews the latest developments in the Russian legislation related to energy efficiency in the public sector, describes the major challenges the regulations pose, and proposes ways to overcome these challenges. Given Russias limited experience with energy performance contracts (EPCs), a pilot project can help test an implementation mechanism. This paper discusses how EPCs and other mechanisms can help harness energy savings opportunities in Russia in general, and thus, can be applicable to any Russian region.

Evans, Meredydd; Roshchanka, Volha; Parker, Steven A.; Baranovskiy, Aleksandr

2012-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "development mechanism cdm" 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

Development of a Wave Energy -Responsive Self-Actuated Blade Articulation Mechanism for an OWC Turbine  

SciTech Connect

The Phase I SBIR effort completed the feasibility design, fabrication, and wind tunnel testing of a self-actuated blade articulation mechanism that uses a torsion bar and a lightweight airfoil to affect the articulation of the Wells airfoil. The articulation is affected only by the air stream incident on the airfoil. The self-actuating blade eliminates the complex and costly linkage mechanism that is now needed to perform this function on either a variable pitch Wells-type or Dennis-Auld air turbine. Using the results reported by independent researchers, the projected improvement in the Wells-type turbine efficiency is 20-40%, in addition to an increase in the operating air flow range by 50-100%, therefore enabling a smaller or slower single turbine to be used.

Francis A. Di Bella

2010-06-01T23:59:59.000Z

82

Energy Efficiency Investments in Public Facilities - Developing a Pilot Mechanism for Russia and Chelyabinsk Region  

SciTech Connect

Russian public sector buildings tend to be very inefficient, which creates vast opportunities for savings. This paper reviews opportunities to implement energy efficiency projects in Russian public buildings, created by new Russian legislation and regulations. Given Russia's limited experience with energy performance contracts (EPCs), a pilot project can help test an implementation mechanism. The authors use Chelyabinsk Region as an example to discuss opportunities, challenges and solutions to financing and implementing an EPC in Russia, navigating through federal requirements and specific local conditions.

Evans, Meredydd; Roshchanka, Volha; Parker, Steven A.; Baranovskiy, Aleksandr

2012-01-01T23:59:59.000Z

83

Mechanical development of an actuation system for a parabolic solar trough collector  

E-Print Network (OSTI)

This thesis documents my personal contribution to the development of a hydraulic-based actuation system for a solar trough collector. The goal of this project was to design the actuation system using hydraulic actuators ...

Carrillo, Juan Felipe (Carrillo Salazar)

2013-01-01T23:59:59.000Z

84

Mechanical development of an actuation system for a parabolic solar trough collector.  

E-Print Network (OSTI)

??Cataloged from PDF version of thesis.Includes bibliographical references (page 26).This thesis documents my personal contribution to the development of a hydraulic-based actuation system for a (more)

Carrillo, Juan Felipe (Carrillo Salazar)

2013-01-01T23:59:59.000Z

85

Comparison of Feed in Tariff, Quota and Auction Mechanisms to Support Wind Power Development  

E-Print Network (OSTI)

by the Non-Fossil Fuel Obligation (NFFO). The NFFO was administered as a series of competitive orders in which renewable energy developers submitted bids specifying the energy price at which they would be prepared to develop a project and deliver energy... generation offered to them and to pay the contracted price for this generation. The difference between the contracted price and the pool selling price, which represented the subsidy to renewable generation, was reimbursed using funds from the Fossil Fuel...

Butler, Lucy; Neuhoff, Karsten

2006-03-14T23:59:59.000Z

86

Development of control system for automatic mechanical transmission of battery electric bus  

Science Conference Proceedings (OSTI)

Due to the advantages of high efficiency, zero emission and good drivability, the battery electric vehicles (BEVs) promise to be one of the best choices to replace the oil fueled vehicle. In this paper a solution for the development of a control system ... Keywords: AMT, battery electric vehicle, control system, layered architecture, modular design

Hong-bo Liu; Yu-long Lei; Yu Zhang; Xiao-lin Zhang; You-de Li

2011-09-01T23:59:59.000Z

87

Development of Comprehensive Detailed and Reduced Reaction Mechanisms for Syngas and Hydrogen Combustion  

DOE Green Energy (OSTI)

The collaborative research initiative culminated in amassing a substantial combustion database of experimental results for dry and moist mixtures of syngas and hydrogen (SGH), including autoignition times using a rapid compression machine as well as laminar flame speeds using a counterflow twin-flame configuration. These experimental data provided the basis for assessment of the kinetics of SGH combustion at elevated pressures using global uncertainty analysis methods. A review of the fundamental combustion characteristics of H{sub 2}/CO mixtures, with emphasis on ignition and flame propagation at high pressures was also conducted to understand the state of the art in SGH combustion. Investigation of the reaction kinetics of CO+HO{sub 2}{center_dot} {yields} CO{sub 2} + {center_dot}OH and HO{sub 2}+OH {yields} H{sub 2}O+O{sub 2} by ab initio calculations and master equation modeling was further carried out in order to look into the discrepancies between the experimental data and the results predicted by the mechanisms.

Chih-Jen Sung; Hai Wang; Angela Violi

2009-02-28T23:59:59.000Z

88

Salt Mechanics Primer for Near-Salt and Sub-Salt Deepwater Gulf of Mexico Field Developments  

Science Conference Proceedings (OSTI)

The Gulf of Mexico (GoM) is the most active deepwater region in the world and provides some of the greatest challenges in scope and opportunity for the oil and gas industry. The complex geologic settings and significant water and reservoir depths necessitate high development costs, in addition to requiring innovating technology. The investment costs are substantial: because of the extreme water depths (up to 8000 feet) and considerable reservoir depths (to 30,000 feet below mudline), the cost of drilling a single well can be upwards of 50 to 100 million dollars. Central, therefore, to successful economic exploitation are developments with a minimum number of wells combined with a well service lifetime of twenty to thirty years. Many of the wells that are planned for the most significant developments will penetrate thick salt formations, and the combined drilling costs for these fields are estimated in the tens of billions of dollars. In May 2001, Sandia National Laboratories initiated a Joint Industry Project focused on the identification, quantification, and mitigation of potential well integrity issues associated with sub-salt and near-salt deepwater GoM reservoirs. The project is jointly funded by the DOE (Natural Gas and Oil Technology Partnership) and nine oil companies (BHP Billiton Petroleum, BP, ChevronTexaco, Conoco, ExxonMobil, Halliburton, Kerr-McGee, Phillips Petroleum, and Shell). This report provides an assessment of the state of the art of salt mechanics, and identifies potential well integrity issues relevant to deepwater GoM field developments. Salt deformation is discussed and a deformation mechanism map is provided for salt. A bounding steady-state strain rate contour map is constructed for deepwater GoM field developments, and the critical issue of constraint in the subsurface, and resultant necessity for numerical analyses is discussed.

FOSSUM, ARLO F.; FREDRICH, JOANNE T.

2002-07-01T23:59:59.000Z

89

Evaluating the Mathematics Achievement Levels of Students Participating in the Texas FFA Agricultural Mechanics Career Development Event  

E-Print Network (OSTI)

The purpose of this study was to evaluate the effectiveness of a mathematics enrichment activity used to improve the mathematics performance of students relative to participation in the State Agricultural Mechanics Career Development Event (CDE) and in mandated assessments. The treatment group (13 schools, 43 students) participated in a mathematics enrichment activity situated in an agricultural mechanics context. The control group (16 schools, 56 students) did not participate in the enrichment activity. Both groups, as part of the CDE, were tested with a 100-question word problem examination, completed a individual skill and team activity, and completed a demographic instrument regarding participation in agricultural mechanics CDEs, scholastic performance, use of graphing calculators, enrollment in STEM, agricultural science, and fine arts courses, and other information. After the survey was conducted, schools were asked to provide TAKS exit scores on participating students. These scores were compared between schools and against statewide TAKS scores. Results of the study showed a significant improvement in scores on the individual written examination and teams scores for the agricultural mechanics CDE and on the TAKS exit level mathematics assessment. Mean written examination scores for the treatment group were 69.53; non-cooperators were 57.16. Mean total team scores for cooperating teams were 420.39; non-cooperators had a mean score of 368.13. Mean TAKS exit level mathematics scores for cooperators were 2336.78; non-cooperators had a mean TAKS exit level score of 2331.77. Participation in the enrichment activity improved both CDE and mathematics achievement scores.

Edney, Kirk C.

2009-12-01T23:59:59.000Z

90

The Development of a Detailed Chemical Kinetic Mechanism for Diisobutylene and Comparison to Shock Tube Ignition Times  

DOE Green Energy (OSTI)

There is much demand for chemical kinetic models to represent practical fuels such as gasoline, diesel and aviation fuel. These blended fuels contain hundreds of components whose identity and amounts are often unknown. A chemical kinetic mechanism that would represent the oxidation of all these species with accompanying chemical reactions is intractable with current computational capabilities, chemical knowledge and manpower resources. The use of surrogate fuels is an approach to make the development of chemical kinetic mechanisms for practical fuels tractable. A surrogate fuel model consists of a small number of fuel components that can be used to represent the practical fuel and still predict desired characteristics of the practical fuel. These desired fuel characteristics may include ignition behavior, burning velocity, fuel viscosity, fuel vaporization, and fuel emissions (carbon monoxide, hydrocarbons, soot and nitric oxides). Gasoline consists of many different classes of hydrocarbons including n-alkanes, alkenes, iso-alkanes, cycloalkanes, cycloalkenes, and aromatics. One approach is to use a fuel surrogate that has a single component from each class of hydrocarbon in gasoline so that the unique molecular structure of each class is represented. This approach may lead to reliable predictions of many of the combustion properties of the practical fuel. In order to obtain a fuel surrogate mechanism, detailed chemical kinetic mechanisms must be developed for each component in the surrogate. In this study, a detailed chemical kinetic mechanism is developed for diisobutylene, a fuel intended to represent alkenes in practical fuels such as gasoline, diesel, and aviation fuel. The fuel component diisobutylene usually consists of a mixture of two conjugate olefins of iso-octane: 1- or 2-pentene, 2,4,4-trimethyl. Diisobutylene has a similar molecular structure to iso-octane, so that its kinetics offers insight into the effect of including a double bond in the carbon skeletal structure of iso-octane. There are few previous studies on diisobutylene. Kaiser et al. [1] examined the exhaust emission from a production spark ignition engine with neat diisobutylene and with it mixed with gasoline. They found the exhaust emissions of diisobutylene to be similar to that of iso-octane. They saw a significant increase in the amount of 2-methyl-1,3-butadiene measured in the exhaust of the engine. They also found appreciable amount of propene in the exhaust, but could not explain the source of this product as they did others in terms of C-C bond beta scission of alkyl radicals. Risberg et al. [2] studied a number of fuel blends to evaluate their autoignition quality for use in a homogeneous charge compression ignition engine, using diisobutylene to represent olefins in one of their test fuels. In this study, experiments on the shock tube ignition of both isomers of diisobutylene will be described. Then, the development of a detailed chemical kinetic mechanism for the two isomers of diisobutylene will be discussed.

Metcalfe, W; Curran, H J; Simmie, J M; Pitz, W J; Westbrook, C K

2005-01-21T23:59:59.000Z

91

A mechanics-based virtual model of NEES-UCSD shake table : theoretical development and experimental validation  

E-Print Network (OSTI)

17th ASCE Engineering Mechanics Conference , Newark, U.S.A,Journal of Engineering Mechanics, ASCE , 129(12). Thoen, B.Journal of Engineering Mechanics , 129(12), 2003. Van Den

Ozcelik, Ozgur

2008-01-01T23:59:59.000Z

92

Sustainable sanitary landfills for neglected small cities in developing countries: The semi-mechanized trench method from Villanueva, Honduras  

SciTech Connect

Highlights: Black-Right-Pointing-Pointer Open dumping is the most common form of waste disposal in neglected small cities. Black-Right-Pointing-Pointer Semi-mechanized landfills can be a sustainable option for small cities. Black-Right-Pointing-Pointer We present the theory of design and operation of semi-mechanized landfills. Black-Right-Pointing-Pointer Villanueva, Honduras has operated its semi-mechanized landfill for 15 years. Black-Right-Pointing-Pointer The cost of operation is US$4.60/ton with a land requirement of 0.2m{sup 2}/person-year. - Abstract: Open dumping is the most common practice for the disposal of urban solid wastes in the least developed regions of Africa, Asia and Latin America. Sanitary landfill design and operation has traditionally focused on large cities, but cities with fewer than 50,000 in population can comprise from 6% to 45% of a given country's total population. These thousands of small cities cannot afford to operate a sanitary landfill in the way it is proposed for large cities, where heavy equipment is used to spread and compact the waste in daily cells, and then to excavate, transport and apply daily cover, and leachate is managed with collection and treatment systems. This paper presents an alternative approach for small cities, known as the semi-mechanized trench method, which was developed in Villanueva, Honduras. In the semi-mechanized trench method a hydraulic excavator is used for 1-3 days to dig a trench that will last at least a month before it is filled with waste. Trucks can easily unload their wastes into the trench, and the wastes compact naturally due to semi-aerobic biodegradation, after which the trenches are refilled and covered. The exposed surface area is minimal since only the top surface of the wastes is exposed, the remainder being covered by the sides and bottom of the trench. The surplus material from trench excavation can be valorized for use as engineering fill onsite or off. The landfill in Villanueva has operated for 15 years, using a total land area of approximately 11 ha for a population that grew from 23,000 to 48,000, with a land requirement of 0.2 m{sup 2}/person year, a cover to waste ratio of 0.2, and an estimated soil surplus of 298,000 m{sup 3} that is valorized and used onsite. The landfill has been operated solely by the municipality with an operational cost in 2010 estimated at US$4.60 per ton. A modified water balance analysis at Villanueva shows negligible leachate generation from covered trenches and 700 m{sup 3}/yr (60 m{sup 3}/ha yr) from the two open trenches required for daily operation. If the site were an open dump, however, leachate generation is estimated to be 3900 m{sup 3}/ha yr and contaminated runoff 5000 m{sup 3}/ha yr. A simple model used to estimate dilution of generated leachate based on groundwater flow data and aquifer stratigraphy suggests that the leachate will be diluted by a factor of 0.01 in the aquifer. Leachate contaminants will not accumulate because the aquifer discharges to the Ulua River 2 km south of the landfill. While not suitable for all sites, the Villanueva method nevertheless serves as an excellent example of how a small city landfill with natural compaction of waste and attenuation of leachate can be sustainably operated.

Oakley, Stewart M., E-mail: soakley@csuchico.edu [Department of Civil Engineering, Chico State University, California State University, Chico, CA 95929 (United States); Jimenez, Ramon, E-mail: rjimenez1958@yahoo.com [Public Works, Municipality of Villanueva, Cortes (Honduras)

2012-12-15T23:59:59.000Z

93

THE COSMOLOGICAL BULK FLOW: CONSISTENCY WITH {Lambda}CDM AND z {approx} 0 CONSTRAINTS ON {sigma}{sub 8} AND {gamma}  

Science Conference Proceedings (OSTI)

We derive estimates for the cosmological bulk flow from the SFI++ Tully-Fisher (TF) catalog. For a sphere of radius 40 h{sup -1} Mpc centered on the Milky Way, we derive a bulk flow of 333 {+-} 38 km s{sup -1} toward Galactic (l, b) = (276 deg., 14 deg.) within a 3{sup 0} 1{sigma} error. Within a radius of 100h{sup -1} Mpc we get 257 {+-} 44 km s{sup -1} toward (l, b) = (279 deg., 10 deg.) within a 6 deg. error. These directions are at 40 deg. to the Supergalactic plane, close to the apex of the motion of the Local Group of galaxies after the Virgocentric infall correction. Our findings are consistent with the {Lambda}CDM model with the latest Wilkinson Microwave Anisotropy Probe (WMAP) best-fit cosmological parameters, but the bulk flow allows independent constraints. For the WMAP-inferred Hubble parameter h = 0.71 and baryonic mean density parameter {Omega}{sub b} = 0.0449, the constraint from the bulk flow on the matter density, {Omega}{sub m}, the normalization of the density fluctuations, {sigma}{sub 8}, and the growth index, {gamma}, can be expressed as {sigma}{sub 8}{Omega}{sup {gamma}-0.55}{sub m}({Omega}{sub m}/0.266){sup 0.28} = 0.86 {+-} 0.11 (for {Omega}{sub m} {approx} 0.266). Fixing {sigma}{sub 8} = 0.8 and {Omega}{sub m} = 0.266 as favored by WMAP, we get {gamma} = 0.495 {+-} 0.096. The constraint derived here rules out popular Dvali-Gabadadze-Porrati models at more than the 99% confidence level. Our results are based on the All Space Constrained Estimate (ACSE) model which reconstructs the bulk flow from an all space three-dimensional peculiar velocity field constrained to match the TF measurements. At large distances, ASCE generates a robust bulk flow from the SFI++ survey that is insensitive to the assumed prior. For comparison, a standard straightforward maximum likelihood estimate leads to very similar results.

Nusser, Adi [Physics Department and the Asher Space Science Institute-Technion, Haifa 32000 (Israel); Davis, Marc, E-mail: adi@physics.technion.ac.il, E-mail: mdavis@berkeley.edu [Departments of Astronomy and Physics, University of California, Berkeley, CA 94720 (United States)

2011-08-01T23:59:59.000Z

94

Ten iterative steps for model development and evaluation applied to Computational Fluid Dynamics for Environmental Fluid Mechanics  

Science Conference Proceedings (OSTI)

Computational Fluid Dynamics (CFD) is increasingly used to study a wide variety of complex Environmental Fluid Mechanics (EFM) processes, such as water flow and turbulent mixing of contaminants in rivers and estuaries and wind flow and air pollution ... Keywords: Air and water quality, Building aerodynamics, Environmental Fluid Mechanics, River hydraulics, Transverse mixing, Wind flow

B. Blocken; C. Gualtieri

2012-07-01T23:59:59.000Z

95

Single Cell Mechanics BIOMATERIALS  

E-Print Network (OSTI)

Single Cell Mechanics BIOMATERIALS Our goal is to develop fundamental tools to measure the response of live cells to mechanical stimulation. The mechanisms by which cells convert mechanical forces evaluate the underlying mechanisms of cell mechanics. Objective Impact and Customers · Cancer, heart

96

Structure and Formation Mechanism on the 24 May 2000 Supercell-Like Storm Developing in a Moist Environment over the Kanto Plain, Japan  

Science Conference Proceedings (OSTI)

The structure and formation mechanism of a supercell-like storm in a moist environment below a melting layer were investigated using dual-Doppler radar analysis and a cloud-resolving storm simulator (CReSS). The supercell-like storm developed ...

Shingo Shimizu; Hiroshi Uyeda; Qoosaku Moteki; Takeshi Maesaka; Yoshimasa Takaya; Kenji Akaeda; Teruyuki Kato; Masanori Yoshizaki

2008-07-01T23:59:59.000Z

97

Development of information and market creation mechanisms for promoting advanced energy efficient transportation technologies. Final report to the U.S. Department of Energy  

SciTech Connect

This report summarizes the work undertaken by ACEEE under the U.S. DOE project entitled ''Development of Information and Market Creation Mechanisms for Promoting Advanced Energy Efficient Transportation Technologies.'' A description of completed tasks is given, followed by recommendations and proposed next steps for ACEEE's work in this area.

DeCicco, John; Bradley, John; Richman, Nessa

2000-10-25T23:59:59.000Z

98

MechanicalTesting  

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

structures, validation of encapsulant cure stress models, development of frac- ture mechanics tests for use in adhesion studies and understanding the failure mechanism of...

99

The Mechanics of Implementing a Consistent Instructional Feedback Model in the Development of a Computer-Based Engineering Course  

Science Conference Proceedings (OSTI)

A computer-based education course to teach an undergraduate engineering course in statics has been developed at Texas A&M University. In the initial design phase, the authors used a very simply constructed feedback model. However, once development was ...

Clayton C. Nelson; Billie J. Hughes; Ralph E. Virgo

1987-05-01T23:59:59.000Z

100

DEVELOPMENT OF AN INSPECTION PLATFORM AND A SUITE OF SENSORS FOR ASSESSING CORROSION AND MECHANICAL DAMAGE ON UNPIGGABLE TRANSMISSION MAINS  

SciTech Connect

The National Energy Technology Laboratory of the US Department of Energy (under Award DE-FC26-02NT41645) and the NYSEARCH Committee of the Northeast Gas Association (previous the New York Gas Group), have sponsored research to develop a robotic pipeline inspection system capable of navigation through the typical physical and operational obstacles that make transmission and distribution pipelines unpiggable. The research contractors, Foster-Miller and GE Oil & Gas (PII North America) have performed an engineering study and developed a conceptual design that meets all the requirements for navigating and inspecting unpiggable transmission pipelines. Based on Foster-Miller's previous efforts developing the Pipe Mouse robot, the RoboScan inspection robot (Figure ES-1) meets the navigational and physical challenges of unpiggable pipelines through an innovative modular platform design, segmented MFL inspection modules and improvements to the inter-module coupling design.

George C. Vradis; William Leary

2004-03-01T23:59:59.000Z

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


101

NANO FOUNTAIN PROBE AIDS DEVELOPMENT OF NEW THERAPEUTICS Horacio D. Espinosa, Department of Mechanical Engineering, Northwestern University  

E-Print Network (OSTI)

NANO FOUNTAIN PROBE AIDS DEVELOPMENT OF NEW THERAPEUTICS Horacio D. Espinosa, Department a novel nanoscale fluid delivery probe, called the Nano Fountain Probe, which enables studies to a dispensing tip. The Nano Fountain Probe has proven capable of delivering a variety of functional materials

Shull, Kenneth R.

102

Compliant mechanisms  

E-Print Network (OSTI)

The motivation for this work has been a variety of motions like navigation of pipelines, insertion operations in assembly, and gripping actions, which require the adaptation of the mechanism to the external constraints, rather than avoid them. To this effect, efforts have been made in building mechanisms that obtain the required degrees of freedom through deformations rather than explicit joints in them. Although the use of many joints provides the required number of degrees of freedom, it does so at the cost of making the system very bulky and complex. With the advent of new polymers, the possibility of building joint-free mechanisms that fulfil the requirements of adaptation has increased. Based on this approach, a Magneto Active Polymer (MAP) material has been developed here at the Texas A\\&M University, in which the actuation is performed by the conversion of electromagnetic energy into mechanical energy. The initial experimentation has proved the vast potential of the use of such a material and a few mechanisms like a magneto active peristaltic pump, have been designed and tested for the first time using this material. In this mechanism, the pumping action is obtained when a moving magnetic field produces peristaltic waves in the magneto active material shaped as a tube. Also for the first time, experiments have been conducted to analyze the response of the MAP material to a pulsating magnetic field with the intent of using the experimental results to develop a model of the MAP. In developing the design for the peristaltic pump and other conceptual models described in this thesis, ideas have been drawn from the different modes of locomotion and actuators present in lower organisms. These have been good sources of inspiration for the work done in this thesis and they have been documented in detail.

Venkataraghavan, Janarthanan T

2001-01-01T23:59:59.000Z

103

DEVELOPMENT OF AN INSPECTION PLATFORM AND A SUITE OF SENSORS FOR ASSESSING CORROSION AND MECHANICAL DAMAGE ON UNPIGGABLE TRANSMISSION MAINS  

SciTech Connect

This development program is a joint effort among the Northeast Gas Association (formerly New York Gas Group), Foster-Miller, Inc., and the US Department of Energy (DOE) through the National Energy Technology Laboratory (NETL). The DOE's contribution to this project is $572,525 out of a total of $772,525. The present report summarizes the accomplishments of the project during its third three-month period (from April 2003 through June 2003). The project was initiated with delay in February 2003 due to contractual issues that emerged between NGA and Foster-Miller, Inc. The two organizations are working diligently to maintain the program's pace and expect to complete it in time. The efforts of the project focused during this period in finalizing the assessment of the tether technology, which is intended to be used as the means of communication between robot and operator. Results indicate that the tether is a viable option under certain pipeline operating conditions, but not all. Concerns also exist regarding the abrasion resistance of the tether, this issue being the last studied. Substantial work was also conducted on the design of the robotic platform, which has progressed very well. Finally, work on the MFL sensor, able to negotiate all pipeline obstacles (including plug valves), was initiated by PII following the successful completion of the subcontract negotiations between Foster-Miller and PII. The sensor design is at this point the critical path in the project's timetable.

George C. Vradis

2003-07-01T23:59:59.000Z

104

Development of a portable mechanical hysteresis measurement and imaging system for impact characterization in honeycomb sandwich structures  

Science Conference Proceedings (OSTI)

Honeycomb sandwich materials are commonly used for aero-structures, but because the outer skins are typically thin, 2-10 plys, the structures are susceptible to impact damage. NDI methods such as tap tests, bond testers and TTU ultrasound are successfully deployed to find impact damage, but identifying the type/degree of damage is troublesome. As the type/degree of impact damage guides decisions by the maintenance, repair and overhaul (MRO) community regarding repair, the ability to characterize impacts is of interest. Previous work demonstrated that additional impact characterization may be gleaned from hysteresis loop area, as determined from an out-of-plane load-vs-displacement plot, where this parameter shows a correlation with impact energy. This presentation reports on current work involving the development of a portable hysteresis measurement and imaging system based on an instrumented tapper. Data processing and analysis methods that allow production of the load/displacement data from a single accelerometer are discussed, with additional reporting of tests of software to automatically vary pixel size during scanning to decrease C-scans inspection time.

Barnard, Daniel J.; Hsu, David K. [Center for NDE, Iowa State University, Ames, IA 50011 (United States)

2011-06-23T23:59:59.000Z

105

DEVELOPMENT OF AN INSPECTION PLATFORM AND A SUITE OF SENSORS FOR ASSESSING CORROSION AND MECHANICAL DAMAGE ON UNPIGGABLE TRANSMISSION MAINS  

Science Conference Proceedings (OSTI)

This development program is a joint effort among the Northeast Gas Association (formerly New York Gas Group), Foster-Miller, Inc., and the US Department of Energy (DOE) through the National Energy Technology Laboratory (NETL). The total cost of the project is $772,525, with the National Energy Technology Laboratory of the US Department of Energy contributing $572,525, and the Northeast Gas Association contributing $200,000. The present report summarizes the accomplishments of the project during its fourth three-month period (from July 2003 through September 2003). The efforts of the project focused during this period in completing the assessment of the tether technology, which is intended to be used as the means of communication between robot and operator, in designing the MFL sensor module, in completing the kinematic studies, and in initiating tractor design. In addition, work on the ovality sensor progressed significantly, while work on system integration was initiated focusing at this point in time on module coupling. Results to date indicate that the robotic system under design will be able to meet most of the design specifications initially specified. Earlier concerns regarding the portability of the system are shown to be a non-issue, with new more detailed analysis showing that from a locomotor point of view an inspection of a 16 inch-24 inch pipe size range with a single platform is most likely possible However, the limitations imposed by the sensor are more restrictive, preliminary results indicating an inspection range of 16 inch-20 inch pipe sizes. In addition, tether use will most likely have to be limited to medium and low flow conditions in order to preserve tether integrity.

George C. Vradis; Bill Leary

2004-01-14T23:59:59.000Z

106

DEVELOPMENT OF AN INSPECTION PLATFORM AND A SUITE OR SENSORS FOR ASSESSING CORROSION AND MECHANICAL DAMAGE ON UNPIGGABLE TRANSMISSION MAINS  

Science Conference Proceedings (OSTI)

This development program is a joint effort among the Northeast Gas Association (formerly New York Gas Group), Foster-Miller, Inc., GE Oil & Gas (PII), and the US Department of Energy (DOE) through the National Energy Technology Laboratory (NETL). The total cost of the project is $772,525, with the National Energy Technology Laboratory of the US Department of Energy contributing $572,525, and the Northeast Gas Association contributing $200,000. The present report summarizes the accomplishments of the project during its fifth three-month period (from October 2003 through December 2003). The efforts of the project focused during this period in completing the assessment of the tether technology, which is intended to be used as the means of communication between robot and operator, in completing the design of the MFL sensor modules, and in completing the kinematic studies and tractor design. In addition, work on the ovality sensor has been completed, while work on system integration is nearly complete. Results to date indicate that the robotic system under design will be able to meet most of the design specifications initially prescribed. The kinematic analysis shows that from a locomotor point of view an inspection of a 16 inch-24 inch pipe size range with a single platform is most likely possible. However, the limitations imposed by the sensor are more restrictive, final preliminary design results showing that in order to cover this pipe range, two different sensor systems will be needed; one for the 16 inch-20 inch pipe size range and one for the 20 inch-24 inch range. Finally, the analysis has shown that tether operation will be limited to flows of less than 30 ft/sec; these results will have to be confirmed experimentally during the next phase of work.

George C. Vradis

2004-02-01T23:59:59.000Z

107

Development of a Versatile Laser Ultrasonic System and Application to On-Line Measurement for Process Control of Wall Thickness and Eccentrictiy of Steel Seamless Mechanical Tubing  

SciTech Connect

Researchers at the Timken Company conceived a project to develop an on-line instrument for wall thickness measurement of steel seamless mechanical tubing based on laser ultrasonic technology. The instrument, which has been installed and tested at a piercing mill, provides data on tube eccentricity and concentricity. Such measurements permit fine-tuning of manufacturing processes to eliminate excess material in the tube wall and therefore provide a more precisely dimensioned product for their customers. The resulting process energy savings are substantial, as is lowered environmental burden. The expected savings are $85.8 million per year in seamless mechanical tube piercing alone. Applied across the industry, this measurement has a potential of reducing energy consumption by 6 x 10{sup 12} BTU per year, greenhouse gas emissions by 0.3 million metric tons carbon equivalent per year, and toxic waste by 0.255 million pounds per year. The principal technical contributors to the project were the Timken Company, Industrial Materials Institute (IMI, a contractor to Timken), and Oak Ridge National Laboratory (ORNL). Timken provided mill access as well as process and metallurgical understanding. Timken researchers had previously developed fundamental ultrasonic analysis methods on which this project is based. IMI developed and fabricated the laser ultrasonic generation and receiver systems. ORNL developed Bayesian and wavelet based real-time signal processing, spread-spectrum wireless communication, and explored feature extraction and pattern recognition methods. The resulting instrument has successfully measured production tubes at one of Timken's piercing mills. This report concentrates on ORNL's contribution through the CRADA mechanism. The three components of ORNL's contribution were met with mixed success. The real-time signal-processing task accomplished its goal of improvement in detecting time of flight information with a minimum of false data. The signal processing algorithm development resulted in a combination of processing steps that can be set to generate no spoofs from noise, while simultaneously missing fewer than 10% of good trials. The algorithm leads to a 95% probability that the estimate of time of flight is good to within 4 time bins or fewer for laser excitations above 30 mJ for the first two echoes of the signal. Receiver Operating Characteristic (ROC) curves for the algorithm indicate that the algorithm is very robust against errors for excitations above at 35 mJ and above, tolerable at 30 mJ and unacceptable below 30 mJ.

Kisner, R.A.; Kercel, S.W.; Damiano, B.; Bingham, P.R.; Gee, T.F.; Tucker, R.W.; Moore, M.R.; Hileman, M.; Emery, M.; Lenarduzzi, R.; Hardy, J.E.; Weaver, K.; Crutcher, R.; Kolarik, R.V., II; Vandervaart, R.H.

2002-04-24T23:59:59.000Z

108

Alloy Development and Mechanical Properties  

Science Conference Proceedings (OSTI)

Mar 12, 2012... metallic glasses are potential materials for use as transformer cores, ... phase separated into a fine scale distribution of Fe-rich and Cu-rich...

109

DEVELOPMENT AND PROPERTIES OF URANIUM-BASE ALLOYS CORROSION RESISTANT IN HIGH TEMPERATURE WATER. PART III. CORROSION MECHANISM OF URANIUM-BASE ALLOYS IN HIGH TEMPERATURE WATER  

DOE Green Energy (OSTI)

The factors affecting corrosion resistance both of bare and of clad uranium-base alloys are reviewed and a mechanism proposed for their corrosion behavior. For unclad gamma-phase uranium alloys exposed to a high temperature water corrodent, it is proposed that the corrosion rate is determined primarily by the oxidation of the alloy by water. This behavior is contrary to that of alpha uranium in which the corrosion rate is primarily determined by the formation and subsequent oxidation of a nonadherent hydride layer. In gamma- phase alloys the hydrogen released by the corrosion reaction, rather than forming the thermodynamically stable UH/sub 3/ phase, dissolves (at least in part) in the base metal where it precipitates as a metastable hydride. The amount of hydrogen absorbed by the metal and hence precipitating as the metastable hydride may be markedly reduced by the addition of hydrogen depolarizers such as nickel or platinum to the water or to the metal. Similarly the amount of absorbed hydrogen may be reduced by introducing sinks that preferentially absorb hydrogen. Both alpha uranium and zirconium were shown to be suitable sinks. Precipitated hydride hardens and embrittles the matrix and by its preferential corrosion eventually leads to discontinuous failure. The hydride may be made to precipitate in a less harmful manner by heat treatments which precipitate nucleating and hardening impurities. The mode of the precipitation is shown to be sensitive to stress; in fact, the assumption of elastic stress as contributing to hydride precipitation is considered necessary to explain the distribution of the precipitate during corrosion. In order to apply a gammaphase fuel alloy as a fuel element material, it is necessary primarily to reduce the amount of hydrogen absorbed by the fuel. This can be done by cladding the fuel with a zirconium- base alloy. Under such conditions it has been shown that fuel element lives in excess of 4 years should be obtainable with properly fabricated fuel elements before they are subject to corrosion failure. Optimum fuel element corrosion life can be achieved by decreasing the general corrosion rate, increasing the hydrogen solubility, increasing the hydrogen diffusion rate, and maintaining a proper clad-fuel bond. For uranium-base alloys such as U/sub 3/Si that do not form a hydride during hot water corrosion, use of a Zircaloy clad is unnecessary. Therefore, the development of alternate cladding materials such as Al for corrosion resistant fuel elements is predicted upon the development of uranium- base alloys that do not corrode by a hydride mechanism. In addition to U/sub 3/ both Zr-U alloys and the strained alpha uranium-base alloys do not appear to corrode by a hydride mechanism. (auth)

Burkart, M.W. ed.

1956-07-01T23:59:59.000Z

110

Bohmian Mechanics  

E-Print Network (OSTI)

Bohmian mechanics is a theory about point particles moving along trajectories. It has the property that in a world governed by Bohmian mechanics, observers see the same statistics for experimental results as predicted by quantum mechanics. Bohmian mechanics thus provides an explanation of quantum mechanics. Moreover, the Bohmian trajectories are defined in a non-conspiratorial way by a few simple laws.

Detlef Duerr; Sheldon Goldstein; Roderich Tumulka; Nino Zanghi

2009-03-15T23:59:59.000Z

111

Mechanical down jar mechanism  

SciTech Connect

This paper describes a mechanical down jar mechanism for freeing stuck objects within a well bore and for conducting other down hole activities. It comprises: an elongate tubular housing having anvil means; mandrel means adapted for connection to an object to be moved downwardly within the well bore and being disposed in telescoping relation with the anvil means and the elongate tubular housing, the mandrel means adapted to be struck by the anvil means to impart a downwardly directed jarring force to the object; the elongate tubular housing having internal firing and recocking detent groove means located in axially spaced relation and forming a firing lug support land therebetween; a radially expandable and retractable firing lug assembly being disposed within the elongate tubular housing and in absence of force being applied axially thereto being radially restrained by the firing lug support land; load spring means being disposed within the elongate tubular housing and being in downward force transmitting relation with the firing lug assembly; recocking spring means being disposed within the elongate tubular housing and having upward axial force transmitting relation with the firing lug assembly.

Taylor, W.T.

1991-12-03T23:59:59.000Z

112

The Department of Mechanical Engineering --Engineering Mechanics  

E-Print Network (OSTI)

, Missile, Research, Development and Engineering Directorate's Propulsion Iaborato'. Ills primaly areas of research are in numerical combustion, and the thermal and mechanical aging ofnitrate esterpropellants decomposition and combustion. Stabilizers are added to the propellants to neutralize the decomposition products

Endres. William J.

113

CDM Projects in Colombia | Open Energy Information  

Open Energy Info (EERE)

AgencyCompany Organization C-O2 Sector Energy, Land Topics Finance, Implementation, Market analysis Website http:www.c-o2.orgclimate-ch Country Colombia UN Region Latin...

114

Bohmian mechanics contradicts quantum mechanics  

E-Print Network (OSTI)

Bohmian mechanics contradicts quantum mechanics Arnold Neumaier Institut fur Mathematik, Universit://solon.cma.univie.ac.at/#24;neum/ Abstract. It is shown that, for a harmonic oscillator in the ground state, Bohmian mechanics and quantum mechanics predict values of opposite sign for certain time correlations. The discrepancy can

Neumaier, Arnold

115

Development of Semi-Stochastic Algorithm for Optimizing Alloy Composition of High-Temperature Austenitic Stainless Steels (H-Series) for Desired Mechanical and Corrosion Properties.  

SciTech Connect

The goal of this project was to adapt and use an advanced semi-stochastic algorithm for constrained multiobjective optimization and combine it with experimental testing and verification to determine optimum concentrations of alloying elements in heat-resistant and corrosion-resistant H-series stainless steel alloys that will simultaneously maximize a number of alloy's mechanical and corrosion properties.

Dulikravich, George S.; Sikka, Vinod K.; Muralidharan, G.

2006-06-01T23:59:59.000Z

116

Tensor analysis of spatial mechanisms  

Science Conference Proceedings (OSTI)

The position analysis of a general four-bar spatial mechanism is developed using tensor notation and operations. To exemplify the convenience of tensors in kinematic analysis the solution is obtained for a mechanism containing two revolute pairs of links ...

C. Y. Ho

1966-05-01T23:59:59.000Z

117

Acceleration Mechanisms  

E-Print Network (OSTI)

Glossary I. Background and context of the subject II. Stochastic acceleration III. Resonant scattering IV. Diffusive shock acceleration V. DSA at multiple shocks VI. Applications of DSA VII. Acceleration by parallel electric fields VIII. Other acceleration mechanisms IX. Future directions X. Appendix: Quasilinear equations XI. Bibliography

Melrose, D B

2009-01-01T23:59:59.000Z

118

The evaluation of mechanical stresses developed in underlying silicon substrates due to electroless nickel under bump metallization using synchrotron X-ray topography  

Science Conference Proceedings (OSTI)

The switch-over to the use of flip-chip Si integrated circuit bonding techniques has been driven by a need to develop higher power and lower voltage devices, capable of carrying larger currents with greater reliability. With the increased use of solder ... Keywords: 07.10.Pz, 61.10.Yh, 61.72.Ff, 62.20.-x, 65.70.+y, 68.35.Ct, 68.35.Gy, 85.40.-e, 85.40.Ls, 85.40.Sz, 89.20.+a, Electroless Ni(P) deposition, Electronic packaging, Reliability, Solder bump, Strain, Under-bump metallization (UBM), X-ray topography

D. Noonan; P. J. McNally; W. -M. Chen; A. Lankinen; L. Knuuttila; T. O. Tuomi; A. N. Danilewsky; R. Simon

2006-11-01T23:59:59.000Z

119

Novel mechanical mechanisms for the development of undergraduate knowledge  

E-Print Network (OSTI)

Although MIT Students have been taught an enormous amount of theory and design, they are not exposed to simple machine elements and designs from the past. As a result, students often spend time reinventing things when the ...

Stern, Michael L., S. B. Massachusetts Institute of Technology

2009-01-01T23:59:59.000Z

120

Mechanical Response  

Science Conference Proceedings (OSTI)

Feb 15, 2010... Troy Topping1; Ying Li1; Yonghao Zhao1; Wes Moss2; Enrique Lavernia1; 1 University of California - Davis; 2Toyota Racing Development

Note: This page contains sample records for the topic "development mechanism cdm" 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

Fractals and quantum mechanics  

Science Conference Proceedings (OSTI)

A new application of a fractal concept to quantum physics has been developed. The fractional path integrals over the paths of the Lvy flights are defined. It is shown that if fractality of the Brownian trajectories leads to standard quantum mechanics

Nick Laskin

2000-01-01T23:59:59.000Z

122

Mechanics of Solder Alloy Interconnects - TMS  

Science Conference Proceedings (OSTI)

Feb 12, 2007 ... This book has been developed as a resource to be used in developing a solder joint reliability assessment. Topics include: the mechanics of...

123

Generalized Two-Dimensional Perturbation Correlation Infrared Spectroscopy reveals Mechanisms for the Development of Surface Charge and Recalcitrance in Plant-derived Biochars  

Science Conference Proceedings (OSTI)

Fundamental knowledge of how biochars develop surface-charge and resistance to environmental degradation (or recalcitrance) is crucial to their production for customized applications or, understanding their functions in the environment. Two-dimensional perturbation-based correlation infrared spectroscopy (2D-PCIS) was used to study the biochar formation process in three taxonomically-different plant biomass, under oxygen-limited conditions along a heat-treatment-temperature gradient (HTT; 200-650 oC). Results from 2D-PCIS pointed to the systematic, HTT-induced defragmenting of lignocellulose H-bonding network, and demethylenation/demethylation, oxidation or dehydroxylation/dehydrogenation of lignocellulose fragments as the primary reactions controlling biochar properties along the HTT gradient. The cleavage of OH O-type H-bonds, oxidation of free primary hydroxyls (HTT?500 oC), and their subsequent dehydrogenation/dehydroxylation (HTT>500 oC) controlled surface charge on the biochars; while the dehydrogenation of methylene groups, which yielded increasingly condensed structures (R-CH2-R ?R=CH-R ?R=C=R), controlled biochar recalcitrance. Variations in biochar properties across plant biomass type were attributable to taxa-specific transformations. For example, apparent inefficiencies in the cleavage of wood-specific H-bonds, and their subsequent oxidation to carboxyls, lead to lower surface charge in wood biochars (compared to grass biochars). Both non-taxa and taxa-specific transformations highlighted by 2D-PCIS could have significant implications for biochar functioning in fire-impacted or biochar-amended systems.

Harvey, Omar R.; Herbert, Bruce; Kuo, Li-Jung; Louchouarn, Patrick

2012-09-05T23:59:59.000Z

124

Measuring Emissions Against an Alternative Future: Fundamental Flaws in the Structure of the Kyoto Protocol's  

E-Print Network (OSTI)

with over 80 CDM and renewable energy professionals involved in CDM project development, including project in renewable energy and hydropower development in India. It also draws on analysis of the UNEP Risoe CDM registered hydro projects in China. This paper presents the following findings: The majority of CDM projects

Kammen, Daniel M.

125

Classical Mechanics (Prof. P. L. Read)  

E-Print Network (OSTI)

Classical Mechanics (Prof. P. L. Read) Lecture 1 Photograph © Andrew Dunn, 5 November 2004. #12;What is Classical Mechanics? · .. rational mechanics will be the science of motion resulting from any Mechanics? · System of mathematical physics developed since the time of Galileo, Newton & Kepler · Concerned

Read, Peter L.

126

Jar mechanism energizer  

Science Conference Proceedings (OSTI)

An energizer for use with a jar mechanism incorporated on inner and outer bodies in a well string to assist the jar mechanism in delivering an upward jar to the well string includes longitudinally spaced seal means between the inner and outer bodies forming a chamber for receiving a compressible medium therein. A differential area formed on one of the bodies within the compressible medium chamber compresses a compressible medium in the chamber as the well string is lowered to position the inner and outer bodies so that the jar mechanism is actuated to restrain relative longitudinal movement between the inner and outer bodies to an extended position whereby a pull force may be developed in the well string in one of the bodies. The differential area is responsive to the compressed gas in the chamber to assist the jar mechanism in applying an upward jarring force when the jar mechanism, in response to a predetermined pull force in the well string, releases the bodies for contact to apply an upward force to the well string.

Webb, D. D.; Anderson, E. A.

1985-10-08T23:59:59.000Z

127

INDEXING MECHANISM  

DOE Patents (OSTI)

A device is presented for loading and unloading fuel elements containing material fissionable by neutrons of thermal energy. The device comprises a combination of mechanical features Including a base, a lever pivotally attached to the base, an Indexing plate on the base parallel to the plane of lever rotation and having a plurality of apertures, the apertures being disposed In rows, each aperture having a keyway, an Index pin movably disposed to the plane of lever rotation and having a plurality of apertures, the apertures being disposed in rows, each aperture having a keyway, an index pin movably disposed on the lever normal to the plane rotation, a key on the pin, a sleeve on the lever spaced from and parallel to the index pin, a pair of pulleys and a cable disposed between them, an open collar rotatably attached to the sleeve and linked to one of the pulleys, a pin extending from the collar, and a bearing movably mounted in the sleeve and having at least two longitudinal grooves in the outside surface.

Kock, L.J.

1959-09-22T23:59:59.000Z

128

The Fluid Mechanics of Gravitational Structure Formation  

E-Print Network (OSTI)

The standard model for gravitational structure formation in astrophysics, astronomy, and cosmology is questioned. Cold dark matter (CDM) hierarchical clustering cosmology neglects particle collisions, viscosity, turbulence and diffusion and makes predictions in conflict with observations. From Jeans 1902 and CDMHC, the non-baryonic dark matter NBDM forms small clumps during the plasma epoch after the big bang that ``cluster'' into larger clumps. CDM halo clusters collect the baryonic matter (H and He) by gravity so that after 300 Myr of ``dark ages'', huge, explosive (Population III) first stars appear, and then galaxies and galaxy clusters. Contrary to CDMHC cosmology, ``hydro-gravitational-dynamics'' HGD cosmology suggests the diffusive NBDM material cannot clump and the clumps cannot cluster. From HGD, the big bang results from an exothermic turbulent instability at Planck scales (10^{-35} m). Turbulent stresses cause an inflation of space and fossil density turbulence remnants that trigger gravitational i...

Gibson, C H

2006-01-01T23:59:59.000Z

129

Mechanical Design  

SciTech Connect

The particle beam of the SXR (soft x-ray) beam line in the LCLS (Linac Coherent Light Source) has a high intensity in order to penetrate through samples at the atomic level. However, the intensity is so high that many experiments fail because of severe damage. To correct this issue, attenuators are put into the beam line to reduce this intensity to a level suitable for experimentation. Attenuation is defined as 'the gradual loss in intensity of any flux through a medium' by [1]. It is found that Beryllium and Boron Carbide can survive the intensity of the beam. At very thin films, both of these materials work very well as filters for reducing the beam intensity. Using a total of 12 filters, the first 9 being made of Beryllium and the rest made of Boron Carbide, the beam's energy range of photons can be attenuated between 800 eV and 9000 eV. The design of the filters allows attenuation for different beam intensities so that experiments can obtain different intensities from the beam if desired. The step of attenuation varies, but is relative to the thickness of the filter as a power function of 2. A relationship for this is f(n) = x{sub 0}2{sup n} where n is the step of attenuation desired and x{sub 0} is the initial thickness of the material. To allow for this desired variation, a mechanism must be designed within the test chamber. This is visualized using a 3D computer aided design modeling tool known as Solid Edge.

2010-08-25T23:59:59.000Z

130

OVERVIEW OF EVOLVING FINANCIAL AND OFFSETS  

E-Print Network (OSTI)

demands · RE (Renewable Energy Directive) · Incentives and barriers for mitigating initiatives on waste) · By investments in mitigating activities in other countries (Joint Implementation or Clean Development Mechanism to COP-15 CDM: CLEAN DEVELOPMENT MECHANISM Industries or states under reduction obligations invest

Columbia University

131

An Unsung Mechanism for Frontogenesis and Cyclogenesis  

Science Conference Proceedings (OSTI)

It is suggested that the constructive interference of a wave packet of stable normal modes could constitute a mechanism for local fronto- and cyclogenetic development. The potential efficacy of this mechanism is illustrated by deriving an ...

J. C. Mller; H. C. Davies; C. Schr

1989-12-01T23:59:59.000Z

132

DOE fundamentals handbook: Mechanical science. Volume 2  

SciTech Connect

The Mechanical Science Handbook was developed to assist nuclear facility operating contractors in providing operators, maintenance personnel, and the technical staff with the necessary fundamentals training to ensure a basic understanding of mechanical components and mechanical science. The handbook includes information diesel engines, heat exchangers, pumps, valves, and miscellaneous mechanical components. This information will provide personnel with a foundation for understanding the construction and operation of mechanical components that are associated with various DOE nuclear facility operations and maintenance.

Not Available

1993-01-01T23:59:59.000Z

133

Physicalism versus quantum mechanics  

E-Print Network (OSTI)

Foundations of Quantum Mechanics. (Princeton UniversityMind, Matter, and Quantum Mechanics, (Springer, Berlin & NewMindful Universe: Quantum Mechanics and the Participating

Stapp, Henry P; Theoretical Physics Group; Physics Division

2009-01-01T23:59:59.000Z

134

Mechanical Compression Heat Pumps  

E-Print Network (OSTI)

Mechanical compression heat pumping is not new in industrial applications. In fact, industry history suggests that the theoretical concept was developed before 1825. Heat pump manufacturers gained the support of consultants and end-users when the energy crisis hit this country in 1973. That interest, today, has been dampened because there is a current abundance of the basic sources of industrial energy (namely oil and natural gas). Meanwhile, Mycom used the window of the current opportunities to develop, design and test compressors built to meet the needs of the mechanically demanding industrial heat pump applications which often require high compression ratios and temperatures in excess of 200 degrees F. This paper will review the theoretical foundation for heat pumps and present the mechanical and thermal requirements of the compressors which constitute the heart and soul of the system. It will also provide a quick survey of the available types of compressors for heat pumping and some of the industrial processes where simultaneous heating and cooling proceed along parallel demand paths. The case history will examine the system flexibility and the economic advantages realized in a barley malting process.

Apaloo, T. L.; Kawamura, K.; Matsuda, J.

1986-06-01T23:59:59.000Z

135

TRANSIENT QUANTUM MECHANICAL PROCESSES  

SciTech Connect

Our principal objective has centered on the development of sophisticated computational techniques to solve the time-dependent Schroedinger equation that governs the evolution of quantum mechanical systems. We have perfected two complementary methods, discrete variable representation and real space product formula, that show great promise in solving these complicated temporal problems. We have applied these methods to the interaction of laser light with molecules with the intent of not only investigating the basic mechanisms but also devising schemes for actually controlling the outcome of microscopic processes. Lasers now exist that produce pulses of such short duration as to probe a molecular process many times within its characteristic period--allowing the actual observation of an evolving quantum mechanical system. We have studied the potassium dimer as an example and found agreement with experimental changes in the intermediate state populations as a function of laser frequency--a simple control prescription. We have also employed elaborate quantum chemistry programs to improve the accuracy of basic input such as bound-bound and bound-free coupling moments. These techniques have far-ranging applicability; for example, to trapped quantum systems at very low temperatures such as Bose-Einstein condensates.

L. COLLINS; J. KRESS; R. WALKER

1999-07-01T23:59:59.000Z

136

Quantum mechanical scoring for protein docking  

Science Conference Proceedings (OSTI)

We develop a docking protocol based on quantum mechanical/molecular mechanical calculations in which quantum mechanical energy is used as scoring. We test the protocol with three groups of examples with various binding site characteristics. The new docking method performs as well as or better than conventional docking methods in all three groups. In particular

Art E. Cho; Jae Yoon Chung

2009-01-01T23:59:59.000Z

137

Micromechanical actuators for insect flight mechanics  

E-Print Network (OSTI)

This project aims to develop MEMS actuators to aid in the study of insect flight mechanics. Specifically, we are developing actuators that can stimulate the antennae of the crepuscular hawk moth Manduca Sexta. The possible ...

Zhou, Hui, M.S. Massachusetts Institute of Technology

2008-01-01T23:59:59.000Z

138

Mechanical Behavior of Indium Nanostructures  

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

Mechanical Behavior of Indium Nanostructures Print Mechanical Behavior of Indium Nanostructures Print Indium is a key material in lead-free solder applications for microelectronics due to its excellent wetting properties, extended ductility, and high electrical conductivity. With the size of electronic devices continuing to shrink and the promise of indium-based nanotechnologies, it is important to develop a fundamental understanding of this material's small-scale mechanical properties and reliability. Researchers from the University of Waterloo, California Institute of Technology, and Los Alamos National Laboratory have collaborated with a team at ALS Beamline 12.3.2 to investigate the small-scale mechanics of indium nanostructures. Scanning x-ray microdiffraction (μSXRD) studies revealed that the indium microstructure is typical of a well-annealed metal, containing very few initial dislocations and showing close-to-theoretical strength.

139

Mechanical Behavior of Indium Nanostructures  

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

Mechanical Behavior of Indium Nanostructures Print Mechanical Behavior of Indium Nanostructures Print Indium is a key material in lead-free solder applications for microelectronics due to its excellent wetting properties, extended ductility, and high electrical conductivity. With the size of electronic devices continuing to shrink and the promise of indium-based nanotechnologies, it is important to develop a fundamental understanding of this material's small-scale mechanical properties and reliability. Researchers from the University of Waterloo, California Institute of Technology, and Los Alamos National Laboratory have collaborated with a team at ALS Beamline 12.3.2 to investigate the small-scale mechanics of indium nanostructures. Scanning x-ray microdiffraction (μSXRD) studies revealed that the indium microstructure is typical of a well-annealed metal, containing very few initial dislocations and showing close-to-theoretical strength.

140

Mechanical Behavior of Indium Nanostructures  

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

Mechanical Behavior of Indium Nanostructures Print Mechanical Behavior of Indium Nanostructures Print Indium is a key material in lead-free solder applications for microelectronics due to its excellent wetting properties, extended ductility, and high electrical conductivity. With the size of electronic devices continuing to shrink and the promise of indium-based nanotechnologies, it is important to develop a fundamental understanding of this material's small-scale mechanical properties and reliability. Researchers from the University of Waterloo, California Institute of Technology, and Los Alamos National Laboratory have collaborated with a team at ALS Beamline 12.3.2 to investigate the small-scale mechanics of indium nanostructures. Scanning x-ray microdiffraction (μSXRD) studies revealed that the indium microstructure is typical of a well-annealed metal, containing very few initial dislocations and showing close-to-theoretical strength.

Note: This page contains sample records for the topic "development mechanism cdm" 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

Application of Statistical Continuum Mechanics to Guide Processing ...  

Science Conference Proceedings (OSTI)

Multi scale modeling including statistical continuum mechanics is used to predict microstructure evolution during processing. We also developed statistical...

142

The Fluid Mechanics of Gravitational Structure Formation  

E-Print Network (OSTI)

The standard model for gravitational structure formation in astrophysics, astronomy, and cosmology is questioned. Cold dark matter (CDM) hierarchical clustering cosmology neglects particle collisions, viscosity, turbulence and diffusion and makes predictions in conflict with observations. From Jeans 1902 and CDMHC, the non-baryonic dark matter NBDM forms small clumps during the plasma epoch after the big bang that ``cluster'' into larger clumps. CDM halo clusters collect the baryonic matter (H and He) by gravity so that after 300 Myr of ``dark ages'', huge, explosive (Population III) first stars appear, and then galaxies and galaxy clusters. Contrary to CDMHC cosmology, ``hydro-gravitational-dynamics'' HGD cosmology suggests the diffusive NBDM material cannot clump and the clumps cannot cluster. From HGD, the big bang results from an exothermic turbulent instability at Planck scales (10^{-35} m). Turbulent stresses cause an inflation of space and fossil density turbulence remnants that trigger gravitational instability at protosupercluster masses (10^{46} kg) in the H-He plasma. These fragment along plasma turbulence vortex lines to form protogalaxy masses (10^{42} kg) just before the transition to gas. The gas has x10^{-13} smaller viscosity, so it fragments at planetary and globular-star-cluster masses (10^{25} and 10^{36} kg) to form the baryonic dark matter (BDM). Observations from the Hubble Space Telescope show protogalaxies (PGs) in linear clusters reflecting their likely fragmentation on plasma vortex lines. From merging BDM planets, these PGs gently form small stars in globular clusters <1 Myr after the big bang without the dark ages, superstars, or reionization of CDM cosmology.

Carl H. Gibson

2006-10-20T23:59:59.000Z

143

Mechanical and chemical chip pre-treatment in mechanical pulp production.  

E-Print Network (OSTI)

?? The mechanical pulping industry has been developing throughout the years, due to competitive prices in the electricity market and good accessibility of wood. This (more)

Sjlin, Malin

2008-01-01T23:59:59.000Z

144

Preliminary assessment of potential CDM early start projects in Brazil  

E-Print Network (OSTI)

conducted recently. Alcohol fuel, as well as the vegetableby Project: The use of alcohol fuel displaces some of the

Meyers, S.; Sathaye, J.; Lehman, B.; Schumacher, K.; van Vliet, O.; Moreira, J.R.

2000-01-01T23:59:59.000Z

145

Preliminary assessment of potential CDM early start projects in Brazil  

E-Print Network (OSTI)

10 XI. Wind Farms in Northeast$20/tC SMALL HYDRO IN GOIAS WIND FARMS BAGASSE ELECTRICITYFax: +55(71)379 1759 XI. Wind Farms in Northeast Brazil

Meyers, S.; Sathaye, J.; Lehman, B.; Schumacher, K.; van Vliet, O.; Moreira, J.R.

2000-01-01T23:59:59.000Z

146

International Capital in Namibia: Tsumeb and the CDM  

E-Print Network (OSTI)

Oil and Gas Company of the us. Nord Mining Corporation of the US (SWA subsidiary Nord Mining and Exploration (

Ferreira, Eduardo de Sousa

1972-01-01T23:59:59.000Z

147

Preliminary assessment of potential CDM early start projects in Brazil  

E-Print Network (OSTI)

generation is from hydropower, but the majority of new power capacity is expected to use natural gas.generation that would be avoided by projects to be roughly 50% from natural gas combined cycle power

Meyers, S.; Sathaye, J.; Lehman, B.; Schumacher, K.; van Vliet, O.; Moreira, J.R.

2000-01-01T23:59:59.000Z

148

UNFCCC/CCNUCC CDM Executive Board AM0025 / Version 03  

E-Print Network (OSTI)

Revision to the approved baseline methodology AM0025 Avoided emissions from organic waste through alternative waste treatment processes This baseline methodology is based on the proposed methodologies submitted for the project Organic waste composting at the Matuail landfill site Dhaka, Bangladesh, whose baseline study, monitoring and verification plan and project design document were prepared by prepared by World Wide Recycling B.V. and Waste Concern. It has been revised to include elements from the methodology for the PT Navigat Organic Energy Indonesia Integrated Solid Waste Management (GALFAD) project in Bali, Indonesia, which was prepared by Mitsubishi Securities Co. For more information regarding these proposals and their consideration by the Executive Board, please refer to case NM0090: Organic waste composting at the Matuail landfill site Dhaka, Bangladesh, and case NM0127 Integrated solid waste management with methane destruction and energy generation, at

Sectoral Scope

2006-01-01T23:59:59.000Z

149

Preliminary assessment of potential CDM early start projects in Brazil  

E-Print Network (OSTI)

pollution from natural gas-fired power plants. Some of the50% from natural gas combined cycle power plants and 50%power plant. In Brazil, the most likely plant type that would be displaced is natural gas

Meyers, S.; Sathaye, J.; Lehman, B.; Schumacher, K.; van Vliet, O.; Moreira, J.R.

2000-01-01T23:59:59.000Z

150

Preliminary assessment of potential CDM early start projects in Brazil  

E-Print Network (OSTI)

16 XIV. Hydroelectricity Generation in the State ofFOR ELEC GENERATION HYDROELECTRICITY IN AMAPA ALCOHOL/DIESELXIV. Hydroelectricity Generation in the State of Amap

Meyers, S.; Sathaye, J.; Lehman, B.; Schumacher, K.; van Vliet, O.; Moreira, J.R.

2000-01-01T23:59:59.000Z

151

Preliminary assessment of potential CDM early start projects in Brazil  

E-Print Network (OSTI)

of higher-efficiency steam turbines. The second (1995-97)for 40-bar boiler and steam turbine with 3-bar extraction

Meyers, S.; Sathaye, J.; Lehman, B.; Schumacher, K.; van Vliet, O.; Moreira, J.R.

2000-01-01T23:59:59.000Z

152

Preliminary assessment of potential CDM early start projects in Brazil  

E-Print Network (OSTI)

other period) the non-baseload sources were at the margin.is not exceeded. For baseload sources, the algorithm only

Meyers, S.; Sathaye, J.; Lehman, B.; Schumacher, K.; van Vliet, O.; Moreira, J.R.

2000-01-01T23:59:59.000Z

153

Preliminary assessment of potential CDM early start projects in Brazil  

E-Print Network (OSTI)

credits, High Price Including other biomass outside thefrom biomass qualifies to receive a better price thanprice conditions (US$65/MWh) has occurred for a biomass-

Meyers, S.; Sathaye, J.; Lehman, B.; Schumacher, K.; van Vliet, O.; Moreira, J.R.

2000-01-01T23:59:59.000Z

154

Student understanding of quantum mechanics  

Science Conference Proceedings (OSTI)

We investigate the difficulties of advanced undergraduate students toward the end of a full year upper-level quantum mechanics course with concepts related to quantum measurements and time development. Our analysis is based upon a test administered to 89 students from six universities and interviews with 9 students. Strikingly

Chandralekha Singh

2001-01-01T23:59:59.000Z

155

Mechanism of pressure welding  

SciTech Connect

Thesis. The mechanism in polycrystalline aluminum, copper, silver, and gold was investigated. (19 figures) (DLC)

Mohamed, H.A.E.F.

1973-12-01T23:59:59.000Z

156

CARTESIAN MECHANICS* Sophie Roux  

E-Print Network (OSTI)

1 CARTESIAN MECHANICS* Sophie Roux (Centre Alexandre Koyré, EHESS, Paris) Introduction For many the search for a mathematical treatment of phenomena, on the other hand the demand for mechanical as the typical mechanical philosopher, and contrasted as such to the founder of mechanics as a science, namely

Paris-Sud XI, Université de

157

INTRODUCTION TO THE MECHANICS  

E-Print Network (OSTI)

INTRODUCTION TO THE MECHANICS OF A CONTINUOUS MEDIUM Lawrence E. Malvern Professor of Mechanics princi- ples common to all branches of solid and fluid mechanics, designed to appeal to the intuition science. The book arose from the need to provide a general preparation in contin- uum mechanics

Kaminski, Edouard

158

Graduate quantum mechanics reform  

Science Conference Proceedings (OSTI)

We address four main areas in which graduatequantum mechanics education can be improved: course content

L. D. Carr; S. B. McKagan

2009-01-01T23:59:59.000Z

159

Final Report of a CRADA Between Pacific Northwest National Laboratory and the Ford Motor Company (CRADA No. PNNL/265): Deactivation Mechanisms of Base Metal/Zeolite Urea Selective Catalytic Reduction Materials, and Development of Zeolite-Based Hydrocarbon Adsorber Materials  

SciTech Connect

Reducing NOx emissions and particulate matter (PM) are primary concerns for diesel vehicles required to meet current LEV II and future LEV III emission standards which require 90+% NOx conversion. Currently, urea SCR as the NOx reductant and a Catalyzed Diesel Particulate Filter (CDPF) are being used for emission control system components by Ford Motor Company for 2010 and beyond diesel vehicles. Because the use of this technology for vehicle applications is new, the relative lack of experience makes it especially challenging to satisfy durability requirements. Of particular concern is being able to realistically simulate actual field aging of the catalyst systems under laboratory conditions. This is necessary both as a rapid assessment tool for verifying improved performance and certifiability of new catalyst formulations, and to develop a good understanding of deactivation mechanisms that can be used to develop improved catalyst materials. In addition to NOx and PM, the hydrocarbon (HC) emission standards are expected to become much more stringent during the next few years. Meanwhile, the engine-out HC emissions are expected to increase and/or be more difficult to remove. Since HC can be removed only when the catalyst becomes warm enough for its oxidation, three-way catalyst (TWC) and diesel oxidation catalyst (DOC) formulations often contain proprietary zeolite materials to hold the HC produced during the cold start period until the catalyst reaches its operating temperature (e.g., >200C). Unfortunately, much of trapped HC tends to be released before the catalyst reaches the operating temperature. Among materials effective for trapping HC during the catalyst warm-up period, siliceous zeolites are commonly used because of their high surface area and high stability under typical operating conditions. However, there has been little research on the physical properties of these materials related to the adsorption and release of various hydrocarbon species found in the engine exhaust. For these reasons, automakers and engine manufacturers have difficulty improving their catalytic converters for meeting the stringent HC emission standards. In this collaborative program, scientists and engineers in the Institute for Integrated Catalysis at Pacific Northwest National Laboratory and at Ford Motor Company have investigated laboratory- and engine-aged SCR catalysts, containing mainly base metal zeolites. These studies are leading to a better understanding of various aging factors that impact the long-term performance of SCR catalysts and improve the correlation between laboratory and engine aging, saving experimental time and cost. We have also studied materials effective for the temporary storage of HC species during the cold-start period. In particular, we have examined the adsorption and desorption of various HC species produced during the combustion with different fuels (e.g., gasoline, E85, diesel) over potential HC adsorber materials, and measured the kinetic parameters to update Fords HC adsorption model. Since this CRADA has now been completed, in this final report we will provide brief summaries of most of the work carried out on this CRADA over the last several years.

Gao, Feng; Kwak, Ja Hun; Lee, Jong H.; Tran, Diana N.; Peden, Charles HF; Howden, Ken; Cheng, Yisun; Lupescu, Jason; Cavattaio, Giovanni; Lambert, Christine; McCabe, Robert W.

2013-02-14T23:59:59.000Z

160

Sandia National Laboratories: Careers: Mechanical Engineering  

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

Mechanical Engineering Mechanical Engineering Engineering photo Sandia mechanical engineers design and develop advanced components and systems for national-defense programs, homeland security, and other applications. Mechanical engineers at Sandia work on design, analysis, manufacturing, and test activities in many areas, including nuclear weapons and power, renewable energy, intelligent machines, robotics, pulsed power, missile defense, remote sensing, advanced manufacturing, and micro- and nanosystems. Sandia mechanical engineers are an integral part of multidisciplinary teams that employ state-of-the-art technologies, such as sophisticated software tools for design, analysis, modeling, and simulation; micro- and nanotechnologies; and advanced materials, materials processing, and fabrication.

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


161

NSLS Mechanical Tech  

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

Mechanical Tech Mechanical Tech The Mechanical Technician group is supervised by Robert Scheuerer and consists of Mechanical Technicians with fabrication/machining, assembly, installation, and alignment/surveying skills. This group also serves as an interface to Central Fabrication Services when more complex or larger fabrication efforts are needed. The Mechanical Tech group is responsible for fabricating, installing, aligning, and troubleshooting the mechanical hardware used on NSLS and SDL accelerators, front ends, and User beamlines, often starting solely from Mechanical Design group drawings or CAD files. The Mechanical Tech Group is responsible for the fabrication, assembly and installation of components at the NSLS. These components include all mechanical assemblies and RF cavities. Another part of their job is to

162

Internal pipe attachment mechanism  

DOE Patents (OSTI)

An attachment mechanism is described for repairing or extending fluid carrying pipes, casings, conduits, etc. utilizing one-way motion of spring tempered fingers to provide a mechanical connection between the attachment mechanism and the pipe. The spring tempered fingers flex to permit insertion into a pipe to a desired insertion depth. The mechanical connection is accomplished by reversing the insertion motion and the mechanical leverage in the fingers forces them outwardly against the inner wall of the pipe. A seal is generated by crushing a sealing assembly by the action of setting the mechanical connection. 6 figures.

Bast, R.M.; Chesnut, D.A.; Henning, C.D.; Lennon, J.P.; Pastrnak, J.W.; Smith, J.A.

1994-12-13T23:59:59.000Z

163

Compliant mechanism learning toolkit  

E-Print Network (OSTI)

This thesis concerns a toolkit designed to assist in learning the behavior of complaint mechanisms. In the design of complaint mechanisms, increasingly complicated designs behave in ways that are harder to intuitively ...

Allard, Nicholas (Nicholas A.)

2006-01-01T23:59:59.000Z

164

QUICK QUANTUM MECHANICS ---Introduction ---  

E-Print Network (OSTI)

QUICK QUANTUM MECHANICS --- Introduction --- The following notes are intended to be a supplement to your study of Liboff's ``Introductory Quantum Mechanics.'' They are not an alternative! My purpose here of Classical Mechanics After Newton found his equations of motion, physicists knew they would have to wait

Jackson, Andrew D.

165

National Environmental Research Institute Ministry of the Environment . Denmark  

E-Print Network (OSTI)

: Hanne Bach, John M. Callaway Financial support: Danish Energy Authority Please cite as: Ringius, L of adaptation measures, incentives to adapt, and barriers to adaptation dis- cussed. Methods for regional-benefit analysis CDM Clean Development Mechanism CEA Cost-effectiveness analysis CETA Carbon Emissions Trajectory

166

Methane Recovery and Energy Generation in Spent Wash Wastewater Treatment  

Science Conference Proceedings (OSTI)

The wastewater from distillation process has high organic content, which has to be treated to bring down the levels of COD and BOD to prescribed standards of environmental authorities. In this study, the organic wastewater from distillery also known ... Keywords: Methane recovery, spent wash, Greenhouse gases (GHG), upflow anaerobic slduge blanket (UASB), Clean Development Mechanism (CDM)

Wei-hua Yang; Li Wei; Sheng-nan Zhao; Jiang Dong

2009-07-01T23:59:59.000Z

167

Chapter 15. Cochlear Mechanics Cochlear Mechanics  

E-Print Network (OSTI)

microvision system we have developed (Aranyosi and Freeman, 2004) while the cochlea was driven by vibrating

168

HYDRAULIC SERVO CONTROL MECHANISM  

DOE Patents (OSTI)

A hydraulic servo control mechanism of compact construction and low fluid requirements is described. The mechanism consists of a main hydraulic piston, comprising the drive output, which is connected mechanically for feedback purposes to a servo control piston. A control sleeve having control slots for the system encloses the servo piston, which acts to cover or uncover the slots as a means of controlling the operation of the system. This operation permits only a small amount of fluid to regulate the operation of the mechanism, which, as a result, is compact and relatively light. This mechanism is particuiarly adaptable to the drive and control of control rods in nuclear reactors. (auth)

Hussey, R.B.; Gottsche, M.J. Jr.

1963-09-17T23:59:59.000Z

169

Mechanical Seal Assembly  

DOE Patents (OSTI)

An improved mechanical seal assembly is provided for sealing rotating shafts with respect to their shaft housings, wherein the rotating shafts are subject to substantial axial vibrations. The mechanical seal assembly generally includes a rotating sealing ring fixed to the shaft, a non-rotating sealing ring adjacent to and in close contact with the rotating sealing ring for forming an annular seal about the shaft, and a mechanical diode element that applies a biasing force to the non-rotating sealing ring by means of hemispherical joint. The alignment of the mechanical diode with respect to the sealing rings is maintained by a series of linear bearings positioned axially along a desired length of the mechanical diode. Alternative embodiments include mechanical or hydraulic amplification components for amplifying axial displacement of the non-rotating sealing ring and transferring it to the mechanical diode.

Kotlyar, Oleg M.

1999-06-18T23:59:59.000Z

170

Mechanical seal assembly  

DOE Patents (OSTI)

An improved mechanical seal assembly is provided for sealing rotating shafts with respect to their shaft housings, wherein the rotating shafts are subject to substantial axial vibrations. The mechanical seal assembly generally includes a rotating sealing ring fixed to the shaft, a non-rotating sealing ring adjacent to and in close contact with the rotating sealing ring for forming an annular seal about the shaft, and a mechanical diode element that applies a biasing force to the non-rotating sealing ring by means of hemispherical joint. The alignment of the mechanical diode with respect to the sealing rings is maintained by a series of linear bearings positioned axially along a desired length of the mechanical diode. Alternative embodiments include mechanical or hydraulic amplification components for amplifying axial displacement of the non-rotating sealing ring and transferring it to the mechanical diode.

Kotlyar, Oleg M. (Salt Lake City, UT)

2001-01-01T23:59:59.000Z

171

Database of Mechanical Properties for Textile Composites  

Science Conference Proceedings (OSTI)

This report describes the approach followed to develop a database for mechanical properties of textile composites. The data in this database is assembled from NASA Advanced Composites Technology (ACT) programs and from data in the public domain. This ...

Delbrey J.

1996-08-01T23:59:59.000Z

172

Mechanics Methodology for Textile Preform Composite Materials  

Science Conference Proceedings (OSTI)

NASA and its contractors have completed a program to develop a basic mechanics underpinning for textile composites. Three major deliverables were produced by the program: (1.) a set of test methods for measuring material properties and design allowables, ...

Jr Clarence C. Poe

1996-11-01T23:59:59.000Z

173

Logical Control Theory Applied to Mechanical Arms  

E-Print Network (OSTI)

A new control algorithm based upon Logical Control Theory is developed for mechanical manipulators. The controller uses discrete tesselations of state space and a finite set of fixed torques to regulate non-rehearsed ...

Pankiewicz, Ronald Joseph

174

Argonne CNM Highlight: Mechanical energy dissipation in  

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

Mechanical Energy Dissipation in Ultrananocrystalline Diamond Microresonators Mechanical Energy Dissipation in Ultrananocrystalline Diamond Microresonators SEM micrograph of UNCD microresonator SEM micrograph of fabricated UNCD microresonator Researchers in the Nanofabrication and Devices group, in collaboration with the University of Pennsylvania, Advanced Diamond Technologies Inc., and Innovative Micro Technology, have discovered that defects at the grain boundary in ultrananocrystalline diamond (UNCD) hold primary responsibility for the fundamental mechanism of energy dissipation. Because of a high Young's modulus and high sound propagation velocity, UNCD materials hold potential for fabricating high-frequency microelectromechanical (MEMS) resonators. However, their mechanical dissipation at high frequency, which is important for developing high-frequency resonator applications, is not

175

Designing a Large-Scale Federal Greenhouse Gas Offsets Program in the United States: Policy Choices and Lessons Learned from the Cle an Development Mechanism and Other Offsets Programs  

Science Conference Proceedings (OSTI)

If the United States decides to take broader action in the future to mitigate climate change, policy discussions may once again focus on development of a greenhouse gas (GHG) cap-and-trade program combined with development of a large-scale GHG emissions offsets program. The compliance flexibility offered by these programs, and the economic incentives they create to identify and implement low-cost compliance options, have the potential to reduce significantly the costs to achieve significant emissions lim...

2011-11-29T23:59:59.000Z

176

The Mechanics of the Systems of Structured Particles  

E-Print Network (OSTI)

The mechanics of the structured particles develops. The substantiation of applicability of such mechanics for the description of processes of evolution in open nonequilibrium systems is offered. The consequences following from the equations of dynamics of structured particles are analyzed.

V. M. Somsikov

2009-01-19T23:59:59.000Z

177

Mechanics of Funding matrix  

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

FUNDING MECHANISMS FUNDING MECHANISMS Funding Mechanism Advantages Disadvantages Comments 1. From Doe to regional organizations * * Facilitates a broad, regional approach to planning and implementation that enhances consistency and uniformity * * Especially beneficial for new programs where early planning is needed * * Simplifies communication for DOE to have only one point of contact for information and discussion * * Cooperative agreement mechanism has proven relatively simple to administer * * Approach would require modification for Tribes * * Would also require that funding be provided to individual States to enable them to participate in the process, since planning authority and responsibility rests with the individual State * * Differs from OCRWM approach to 180(c) funding * * Introduces another layer of

178

Mechanical Behavior II  

Science Conference Proceedings (OSTI)

Mar 5, 2013 ... Impact of Cooling Rate on Low Silver Sn-Ag-Cu Solder Interconnect Board Level Mechanical Shock and Thermal Cycling Performance:...

179

Structures and Mechanical Properties  

Science Conference Proceedings (OSTI)

Mar 7, 2013... Refractory High-entropy Alloy: Chien-Chang Juan1; Jien-Wei Yeh1; ... The main wear mechanism was adhesive wear in deionized water,...

180

Mechanical Behavior I  

Science Conference Proceedings (OSTI)

Mar 5, 2013... (IMC) is essential for understandingthe mechanical behavior of the ... Reliability and by the SHaRE User Facility, Scientific User Facilities...

Note: This page contains sample records for the topic "development mechanism cdm" 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

Mecanica Clasica (Classical Mechanics)  

E-Print Network (OSTI)

First Internet undergraduate course on Classical Mechanics in Spanish (Castellano). This is about 80% of the material I covered during the January-June 1999 semester at IFUG in the Mexican city of Leon. English and Romanian versions are in (slow) progress and hopefully will be arXived. For a similar course on Quantum Mechanics, see physics/9808031

Rosu, H C

1999-01-01T23:59:59.000Z

182

Quantum Mechanics Measurements, Mutually  

E-Print Network (OSTI)

Quantum Mechanics Measurements, Mutually Unbiased Bases and Finite Geometry Or why six is the first) #12;Quantum Mechanics for Dummies Finite dimensional quantum states are represented by trace one,1 -icS1,1[ ] #12;Quantum systems evolve and are measured. The evolution of a quantum system using

Gruner, Daniel S.

183

Mechanical code comparator  

DOE Patents (OSTI)

A new class of mechanical code comparators is described which have broad potential for application in safety, surety, and security applications. These devices can be implemented as micro-scale electromechanical systems that isolate a secure or otherwise controlled device until an access code is entered. This access code is converted into a series of mechanical inputs to the mechanical code comparator, which compares the access code to a pre-input combination, entered previously into the mechanical code comparator by an operator at the system security control point. These devices provide extremely high levels of robust security. Being totally mechanical in operation, an access control system properly based on such devices cannot be circumvented by software attack alone.

Peter, Frank J. (Albuquerque, NM); Dalton, Larry J. (Bernalillo, NM); Plummer, David W. (Albuquerque, NM)

2002-01-01T23:59:59.000Z

184

Wave Mechanics without Probability  

E-Print Network (OSTI)

The behavior of monochromatic electromagnetic waves in stationary media is shown to be ruled by a frequency dependent function, which we call Wave Potential, encoded in the structure of the Helmholtz equation. Contrary to the common belief that the very concept of "ray trajectory" is reserved to the eikonal approximation, a general and exact ray-based Hamiltonian treatment, reducing to the eikonal approximation in the absence of Wave Potential, shows that its presence induces a mutual, perpendicular ray-coupling, which is the one and only cause of any typically wave-like phenomenon, such as diffraction and interference. Recalling, then, that the time-independent Schroedinger and Klein-Gordon equations (associating stationary "matter waves" to mono-energetic particles) are themselves Helmholtz-like equations, the exact, ray-based treatment developed for classical electromagnetic waves is extended - without resorting to statistical concepts - to the exact, trajectory-based Hamiltonian dynamics of mono-energetic point-like particles, both in the non-relativistic and in the relativistic case. The trajectories turn out to be perpendicularly coupled, once more, by an exact, stationary, energy-dependent Wave Potential, coinciding in the form, but not in the physical meaning, with the statistical, time-varying, energy-independent "Quantum Potential" of Bohm's theory, which views particles, just like the standard Copenhagen interpretation, as traveling wave-packets. These results, together with the connection which is shown to exist between Wave Potential and Uncertainty Principle, suggest a novel, non-probabilistic interpretation of Wave Mechanics.

Adriano Orefice; Raffaele Giovanelli; Domenico Ditto

2013-02-18T23:59:59.000Z

185

Structural Mechanics & Solid Mechanics A finite element toolbox to MATLAB  

E-Print Network (OSTI)

Structural Mechanics & Solid Mechanics Department of Mechanics and Materials CALFEM A finite.3 Copyright © 1999 by Structural Mechanics, LTH, Sweden. Printed by JABE Offset, Lund, Sweden. ISRN LUTVDG/TVSM--99/9001--SE (1-265) ISSN 0281-6679 Department of Mechanics and Materials Structural Mechanics #12;The

Ehrhardt, Matthias

186

Rotary mechanical latch  

Science Conference Proceedings (OSTI)

A rotary mechanical latch for positive latching and unlatching of a rotary device with a latchable rotating assembly having a latching gear that can be driven to latched and unlatched states by a drive mechanism such as an electric motor. A cam arm affixed to the latching gear interfaces with leading and trailing latch cams affixed to a flange within the drive mechanism. The interaction of the cam arm with leading and trailing latch cams prevents rotation of the rotating assembly by external forces such as those due to vibration or tampering.

Spletzer, Barry L.; Martinez, Michael A.; Marron, Lisa C.

2012-11-13T23:59:59.000Z

187

Quantum Mechanics Without Observers  

E-Print Network (OSTI)

The measurement problem and the role of observers have plagued quantum mechanics since its conception. Attempts to resolve these have introduced anthropomorphic or non-realist notions into physics. A shift of perspective based upon process theory and utilizing methods from combinatorial games, interpolation theory and complex systems theory results in a novel realist version of quantum mechanics incorporating quasi-local, nondeterministic hidden variables that are compatible with the no-hidden variable theorems and relativistic invariance, and reproduce the standard results of quantum mechanics to a high degree of accuracy without invoking observers.

W. H. Sulis

2013-02-18T23:59:59.000Z

188

Electronic door locking mechanism  

DOE Patents (OSTI)

The invention is a motorized linkage for engaging a thumb piece in a door mechanism. The device has an exterior lock assembly with a small battery cell and combination lock. Proper entry by a user of a security code allows the battery to operate a small motor within the exterior lock assembly. The small motor manipulates a cam-plunger which moves an actuator pin into a thumb piece. The user applies a force on to the thumb piece. This force is transmitted by the thumb piece to a latch engagement mechanism by the actuator pin. The latch engagement mechanism operates the door latch. 6 figs.

Williams, G.L.; Kirby, P.G.

1997-10-21T23:59:59.000Z

189

Electronic door locking mechanism  

SciTech Connect

The invention is a motorized linkage for engaging a thumb piece in a door mechanism. The device has an exterior lock assembly with a small battery cell and combination lock. Proper entry by a user of a security code allows the battery to operate a small motor within the exterior lock assembly. The small motor manipulates a cam-plunger which moves an actuator pin into a thumb piece. The user applies a force on to the thumb piece. This force is transmitted by the thumb piece to a latch engagement mechanism by the actuator pin. The latch engagement mechanism operates the door latch.

Williams, Gary Lin (428 E. Third Ave., Kennewick, WA 99336); Kirby, Patrick Gerald (1010 W. Fifteenth Pl., Kennewick, WA 99337)

1997-01-01T23:59:59.000Z

190

Is quantum mechanics exact?  

SciTech Connect

We formulate physically motivated axioms for a physical theory which for systems with a finite number of degrees of freedom uniquely lead to quantum mechanics as the only nontrivial consistent theory. Complex numbers and the existence of the Planck constant common to all systems arise naturally in this approach. The axioms are divided into two groups covering kinematics and basic measurement theory, respectively. We show that even if the second group of axioms is dropped, there are no deformations of quantum mechanics which preserve the kinematic axioms. Thus, any theory going beyond quantum mechanics must represent a radical departure from the usual a priori assumptions about the laws of nature.

Kapustin, Anton [California Institute of Technology, Pasadena, California 91125 (United States)] [California Institute of Technology, Pasadena, California 91125 (United States)

2013-06-15T23:59:59.000Z

191

Coupled Thermal-Hydrological-Mechanical-Chemical Model and Experiments...  

Open Energy Info (EERE)

of Applications for Research, Development and Analysis of Geothermal Technologies Project Type Topic 2 Integrated Chemical, Thermal, Mechanical and Hydrological Modeling...

192

Evaluation of the Microstructure and Mechanical Properties of Delta ...  

Science Conference Proceedings (OSTI)

bar stock. The process was developed to improve the mechanical properties through ... DP718 bar stock properties were compared to conventionally processed...

193

Counter Current Multiplier Mechanism  

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

Counter Current Multiplier Mechanism Counter Current Multiplier Mechanism Name: Stephen Location: N/A Country: N/A Date: N/A Question: Can you please explain to me the counter-current multiplier mechanism. I understand that cholride and sodium ions are filtered out of the ascending loop of Henle into the interstial fluid, however, I'm not sure exactly what happens from there and how this effects osmotic pressure gradients in the nephron. Any help would be greatly appriciated. Replies: This mechanism is very complex when it comes to writing a response. You have to have a strong background in osmotic pressure understanding and the anatomy of the kidney. It involves the cortex, outer and inner medula in relationship to the vasa recta, interstitial fluids at two points, the loop of Henle and the collecting duct. The size of the tubes and the position in relations to the cortex and medulla is an essential part. I can suggest some references.

194

Mechanical Testing of Plastics  

Science Conference Proceedings (OSTI)

Table 7   ASTM and ISO mechanical test standards for plastics...by pendulum method D 1938 6383-1 Tear propagation resistance of plastic film and thin

195

Conservative-Bayesian Mechanisms  

E-Print Network (OSTI)

We put forward a new class of mechanisms. In this extended abstract, we exemplify our approach only for single-good auctions in what we call a conservative-Bayesian setting. (Essentially, no common-knowledge about the ...

Azar, Pablo

2010-09-08T23:59:59.000Z

196

REACTOR CONTROL MECHANISM  

DOE Patents (OSTI)

A quick-releasing mechanism is described which may be used to rapidiy drop a device supported from beneath during normal use, such as a safety rod in a nuclear reactor. In accordance with this invention an electrical control signal, such as may be provided by radiation detection or other alarm condition sensing devices, is delivered to an electromagnetic solenoid, the armature of which is coupled to an actuating mechanism. The solenoid is energized when the mechanism is in its upper or cocked position. In such position, the mechanism engages a plurality of retaining balls, forcing them outward into engagement with a shoulder or recess in a corresponding section of a tubular extension on the upheld device. When the control signal to the solenoid suddenly ceases, the armature drops out, allowing the actuating mechanism to move slightly but rapidly under the force of a compressed spring. The weight of the device will urge the balls inward against a beveled portion of the actuating mechanism and away from the engaging section on the tubular extension, thus allowing the upheld device to fall freely under the influence of gravity.

Lane, J.A.; Engberg, R.E.; Welch, J.M.

1959-05-12T23:59:59.000Z

197

Reference Poster: Turbine Bearing Damage Mechanisms  

Science Conference Proceedings (OSTI)

Damage to turbine and generator bearings accounts for a significant amount of lost generation in the power industry. There are numerous known damage mechanisms affecting these bearings, and as part of EPRIs technology transfer efforts, we have developed a reference poster. This poster provides clear, concise, and visual information for a wide variety of mechanisms and is meant to supplement related EPRI projects. By providing an overview of various issues as well as information on how to ...

2012-10-04T23:59:59.000Z

198

Mechanism of instantaneous coal outbursts  

Science Conference Proceedings (OSTI)

Thousands of mine workers die every year from mining accidents, and instantaneous coal outbursts in underground coal mines are one of the major killers. Various models for these outbursts have been proposed, but the precise mechanism is still unknown. We hypothesize that the mechanism of coal outbursts is similar to magma fragmentation during explosive volcanic eruptions; i.e., it is caused by high gas pressure inside coal but low ambient pressure on it, breaking coal into pieces and releasing the high-pressure gas in a shock wave. Hence, coal outbursts may be regarded as another type of gas-driven eruption, in addition to explosive volcanic, lake, and possible ocean eruptions. We verify the hypothesis by experiments using a shock-tube apparatus. Knowing the mechanism of coal outbursts is the first step in developing prediction and mitigation measures. The new concept of gas-driven solid eruption is also important to a better understanding of salt-gas outbursts, rock-gas outbursts, and mud volcano eruptions.

Guan, P.; Wang, H.Y.; Zhang, Y.X. [Peking University, Beijing (China). School of Earth & Space Science

2009-10-15T23:59:59.000Z

199

MATHEMATICS 428/609D Mathematical Classical Mechanics  

E-Print Network (OSTI)

MATHEMATICS 428/609D Mathematical Classical Mechanics This course is intended to complement physics department classical mechanics courses in the sense that the physical background will be developed experience with rigorous mathematics (like Math 320 and 321) and with classical mechanics (like Physics 206

Feldman, Joel

200

ON THE FAITHFUL INTERPRETATION OF PURE WAVE MECHANICS  

E-Print Network (OSTI)

ON THE FAITHFUL INTERPRETATION OF PURE WAVE MECHANICS JEFFREY A. BARRETT In the long version of his Ph.D. thesis, Hugh Everett III developed pure wave mechanics as a way of solving the quantum measurement problem faced by the standard von Neumann-Dirac collapse formulation of quantum mechanics.1 Pure

Wüthrich, Christian

Note: This page contains sample records for the topic "development mechanism cdm" 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

Jar mechanism accelerator  

SciTech Connect

This patent describes an accelerator for use with a jar mechanism in a well pipe string to enhance the jarring impact delivered to a stuck object wherein the jar mechanism includes inner and outer members for connection, respectively, between the well pipe string the stuck object. The jar mechanism members are constructed to (1) restrict relative longitudinal movement therebetween to build up energy in the well pipe string and accelerator and then (2) to release the jar mechanism members for unrestrained, free relative longitudinal movement therebetween to engage jarring surfaces on the jar mechanism members for delivering a jarring impact to the stuck object. The accelerator includes: inner and outer telescopically connected members relatively movable longitudinally to accumulate energy in the accelerator; the inner and outer accelerator members each having means for connecting the accelerator in the well pipe string; means associated with the inner and outer members for initially accomodating a predetermined minimum length of unrestrained, free relative longitudinal movement between the inner and outer accelerator members.

Anderson, E.A.; Webb, D.D.

1989-07-11T23:59:59.000Z

202

New mechanism for lightning initiation  

Science Conference Proceedings (OSTI)

This is the final report of a three-year, Laboratory-Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). To distinguish radio-frequency (rf) signals generated by lightning from the electromagnetic pulse produced by a nuclear explosion, it is necessary to understand the fundamental nature of thunderstorm discharges. The recent debate surrounding the origin of transionospheric pulse pairs (TIPPs) detected by the BLACKBEARD experiment aboard the ALEXIS satellite illustrates this point. We have argued that TIPP events could originate from the upward propagating discharges recently identified by optical images taken from the ground, from airplanes, and from the space shuttle. In addition, the Gamma Ray Observatory (GRO) measurements of x-ray bursts originating from thunderstorms are almost certainly associated with these upward propagating discharges. When taken together, these three measurements point directly to the runaway electron mechanism as the source of the upward discharges. The primary goal of this research effort was to identify the specific role played by the runaway-air-breakdown mechanism in the general area of thunderstorm electricity and in so doing develop lightning models that predict the optical, rf, and x-ray emissions that are observable from space.

Roussel-Dupre, R.; Buchwald, M.; Gurevich, A. [Lebedev Institute of Physical Sciences, Moscow (Russian Federation)] [and others

1996-10-01T23:59:59.000Z

203

Solar mechanics thermal response capabilities.  

DOE Green Energy (OSTI)

In many applications, the thermal response of structures exposed to solar heat loads is of interest. Solar mechanics governing equations were developed and integrated with the Calore thermal response code via user subroutines to provide this computational simulation capability. Solar heat loads are estimated based on the latitude and day of the year. Vector algebra is used to determine the solar loading on each face of a finite element model based on its orientation relative to the sun as the earth rotates. Atmospheric attenuation is accounted for as the optical path length varies from sunrise to sunset. Both direct and diffuse components of solar flux are calculated. In addition, shadowing of structures by other structures can be accounted for. User subroutines were also developed to provide convective and radiative boundary conditions for the diurnal variations in air temperature and effective sky temperature. These temperature boundary conditions are based on available local weather data and depend on latitude and day of the year, consistent with the solar mechanics formulation. These user subroutines, coupled with the Calore three-dimensional thermal response code, provide a complete package for addressing complex thermal problems involving solar heating. The governing equations are documented in sufficient detail to facilitate implementation into other heat transfer codes. Suggestions for improvements to the approach are offered.

Dobranich, Dean D.

2009-07-01T23:59:59.000Z

204

FAQS Qualification Card - Mechanical Systems | Department of Energy  

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

Mechanical Systems Mechanical Systems FAQS Qualification Card - Mechanical Systems A key element for the Department's Technical Qualification Programs is a set of common Functional Area Qualification Standards (FAQS) and associated Job Task Analyses (JTA). These standards are developed for various functional areas of responsibility in the Department, including oversight of safety management programs identified as hazard controls in Documented Safety Analyses (DSA). For each functional area, the FAQS identify the minimum technical competencies and supporting knowledge and skills for a typical qualified individual working in the area. FAQC-MechanicalSystems.docx Description Mechanical Systems Qualification Card More Documents & Publications FAQS Gap Analysis Qualification Card - Mechanical Systems

205

Designing Renewable Energy Financing Mechanism Terms of Reference | Open  

Open Energy Info (EERE)

Designing Renewable Energy Financing Mechanism Terms of Reference Designing Renewable Energy Financing Mechanism Terms of Reference (Redirected from Designing Renewable Energy Financing Mechanisms) Jump to: navigation, search Tool Summary Name: Designing Renewable Energy Financing Mechanisms Agency/Company /Organization: World Bank Sector: Energy Focus Area: Renewable Energy Topics: Finance, Implementation, Market analysis Website: web.worldbank.org/WBSITE/EXTERNAL/TOPICS/EXTENERGY2/EXTRENENERGYTK/0,, References: Designing Renewable Energy Financing Mechanisms[1] Resources Design of Micro-hydro Funding Facility and Community Mobilization Support Design of Institutional and Financial Intermediation Scheme for a Micro hydro Power Development Program Design of a Rural Energy Fund References ↑ "Designing Renewable Energy Financing Mechanisms"

206

Experimental unsaturated soil mechanics  

E-Print Network (OSTI)

In this general report, experimental systems and procedures of investigating the hydro-mechanical behaviour of unsaturated soils are presented. The water retention properties of unsaturated soils are commented and linked to various physical parameters and properties of the soils. Techniques of controlling suction are described together with their adaptation in various laboratory testing devices. Some typical features of the mechanical behaviour of unsaturated soils are presented within an elasto-plastic framework. An attempt to describe the numerous and significant recent advances in the investigation of the behaviour of unsaturated soils, including the contributions to this Conference, is proposed.

Delage, Pierre

2008-01-01T23:59:59.000Z

207

Breakthrough in fracture mechanics  

SciTech Connect

Fracture mechanics, the science of calculating material characteristics, stress, and flaws in plant equipment to evaluate structural integrity, usually spares the owners of nuclear power plants unnecessary expense. Instead of replacing equipment prematurely or waiting for costly, unscheduled materials failures that can take months to repair and cost thousands of dollars a day for replacement power, utilities use fracture mechanics techniques to carefully consider their options. If analyses show repair is unnecessary, plant operation can confidently be resumed. If repair is required, it can either be done immediately or, if deferrable, be scheduled for a later, more convenient outage.

Lihach, N.

1981-05-01T23:59:59.000Z

208

Surveying Students Understanding of Quantum Mechanics  

Science Conference Proceedings (OSTI)

Development of research?based multiple?choice tests about quantum mechanics is important for assessing students difficulties and for evaluating curricula and pedagogies that strive to reduce the difficulties. We explore the difficulties that the undergraduate and graduate students have with non?relativistic quantum mechanics of one particle in one spatial dimension. We developed a research?based conceptual multiple?choice survey that targets these issues to obtain information about the common difficulties and administered it to more than a hundred students from seven different institutions. The issues targeted in the survey include the set of possible wavefunctions

Chandralekha Singh; Guangtian Zhu

2010-01-01T23:59:59.000Z

209

Final Report for DOE Grant DE-FG02-03ER25579; Development of High-Order Accurate Interface Tracking Algorithms and Improved Constitutive Models for Problems in Continuum Mechanics with Applications to Jetting  

Science Conference Proceedings (OSTI)

Much of the work conducted under the auspices of DE-FG02-03ER25579 was characterized by an exceptionally close collaboration with researchers at the Lawrence Berkeley National Laboratory (LBNL). For example, Andy Nonaka, one of Professor Miller's graduate students in the Department of Applied Science at U. C. Davis (UCD) wrote his PhD thesis in an area of interest to researchers in the Applied Numerical Algorithms Group (ANAG), which is a part of the National Energy Research Supercomputer Center (NERSC) at LBNL. Dr. Nonaka collaborated closely with these researchers and subsequently published the results of this collaboration jointly with them, one article in a peer reviewed journal article and one paper in the proceedings of a conference. Dr. Nonaka is now a research scientist in the Center for Computational Sciences and Engineering (CCSE), which is also part of the National Energy Research Supercomputer Center (NERSC) at LBNL. This collaboration with researchers at LBNL also included having one of Professor Puckett's graduate students in the Graduate Group in Applied Mathematics (GGAM) at UCD, Sarah Williams, spend the summer working with Dr. Ann Almgren, who is a staff scientist in CCSE. As a result of this visit Sarah decided work on a problem suggested by the head of CCSE, Dr. John Bell, for her PhD thesis. Having finished all of the coursework and examinations required for a PhD, Sarah stayed at LBNL to work on her thesis under the guidance of Dr. Bell. Sarah finished her PhD thesis in June of 2007. Writing a PhD thesis while working at one of the University of California (UC) managed DOE laboratories is long established tradition at UC and Professor Puckett has always encouraged his students to consider doing this. Another one of Professor Puckett's graduate students in the GGAM at UCD, Christopher Algieri, was partially supported with funds from DE-FG02-03ER25579 while he wrote his MS thesis in which he analyzed and extended work originally published by Dr. Phillip Colella, the head of ANAG, and some of his colleagues. Chris Algieri is now employed as a staff member in Dr. Bill Collins' Climate Science Department in the Earth Sciences Division at LBNL working with computational models of climate change. Finally, it should be noted that the work conducted by Professor Puckett and his students Sarah Williams and Chris Algieri and described in this final report for DOE grant # DE-FC02-03ER25579 is closely related to work performed by Professor Puckett and his students under the auspices of Professor Puckett's DOE SciDAC grant DE-FC02-01ER25473 An Algorithmic and Software Framework for Applied Partial Differential Equations: A DOE SciDAC Integrated Software Infrastructure Center (ISIC). Dr. Colella was the lead PI for this SciDAC grant, which was comprised of several research groups from DOE national laboratories and five university PI's from five different universities. In theory Professor Puckett tried to use funds from the SciDAC grant to support work directly involved in implementing algorithms developed by members of his research group at UCD as software that might be of use to Puckett's SciDAC CoPIs. (For example, see the work reported in Section 2.2.2 of this final report.) However, since there is considerable lead time spent developing such algorithms before they are ready to become `software' and research plans and goals change as the research progresses, Professor Puckett supported each member of his research group partially with funds from the SciDAC APDEC ISIC DE-FC02-01ER25473 and partially with funds from this DOE MICS grant DE-FC02-03ER25579. This has necessarily resulted in a significant overlap of project areas that were funded by both grants. In particular, both Sarah Williams and Chris Algieri were supported partially with funds from grant # DE-FG02-03ER25579, for which this is the final report, and in part with funds from Professor Puckett's DOE SciDAC grant # DE-FC02-01ER25473. For example, Sarah Williams received support from DE-FC02- 01ER25473 and DE-FC02-03ER25579, both while at UCD taking cla

Puckett, Elbridge Gerry [U.C. Davis, Department of Mathematics; Miller, Gregory Hale [.C. Davis, Department of Chemical Engineering

2012-10-14T23:59:59.000Z

210

STATISTICAL MECHANICS AND FIELD THEORY  

E-Print Network (OSTI)

1. L. 1. Schiff, Quantum Mechanics, third edition (McGraw-two-dimensional quantum mechanics problem vith a potential,Theory Methods to Statistical Mechanics Chapter I The Use of

Samuel, S.A.

2010-01-01T23:59:59.000Z

211

DEPARTMENT OF MECHANICAL ENGINEERING  

E-Print Network (OSTI)

the Chair Advanced Power Systems Research Group Engineering Education Innovation Research Group Mechanics of MultiScale Materials Research Group MultiScale Systems and Sensors Research Group Space Systems Research Group Sustainable Manufacturing and Design Research Group Faculty Profiles Michigan

Endres. William J.

212

MECHANICAL TEST LAB CAPABILITIES  

E-Print Network (OSTI)

MECHANICAL TEST LAB CAPABILITIES · Static and cyclic testing (ASTM and non-standard) · Impact drop testing · Slow-cycle fatigue testing · High temperature testing to 2500°F · ASTM/ Boeing/ SACMA standard testing · Ability to design and fabricate non-standard test fixtures and perform non-standard tests

213

SAFETY-MECHANICAL STANDARDS  

SciTech Connect

Hanford Atomic Production Operation specification guides and standards for plumbing, chemical ngineering, mechanical engineering, sanitary engineering, exhaust systems, steam engineering, stainless steel, dry boxes, thermal insulation, filtration, and materials testing are presented. Details of this manual are given in TID-4100 (Suppl.). (N.W.R.)

1964-10-31T23:59:59.000Z

214

Higgs Mechanism for Gravitons  

E-Print Network (OSTI)

Just like the vector gauge bosons in the gauge theories, it is now known that gravitons acquire mass in the process of spontaneous symmetry breaking of diffeomorphisms through the condensation of scalar fields. The point is that we should find the gravitational Higgs mechanism such that it results in massive gravity in a flat Minkowski space-time without non-unitary propagating modes. This is usually achieved by including higher-derivative terms in scalars and tuning the cosmological constant to be a negative value in a proper way. Recently, a similar but different gravitational Higgs mechanism has been advocated by Chamseddine and Mukhanov where one can relax the negative cosmological constant to zero or positive one. In this work, we investigate why the non-unitary ghost mode decouples from physical Hilbert space in a general space-time dimension. Moreover, we generalize the model to possess an arbitrary potential and clarify under what conditions the general model exhibits the gravitational Higgs mechanism. By searching for solutions to the conditions, we arrive at two classes of potentials exhibiting gravitational Higgs mechanism. One class includes the model by Chamseddine and Mukhanov in a specific case while the other is completely a new model.

Ichiro Oda

2010-03-07T23:59:59.000Z

215

Continuous chain bit development  

DOE Green Energy (OSTI)

The continuous chain drill is a diamond drill bit in which the cutting surface can be replaced while the bit is still in the hole. The first prototype of the chain drill system was fabricated and tested in 1977. Problems were encountered with the mechanism used to cycle the bit. A second prototype bit was designed to circumvent these problems. An accelerated development and test program has provided field test results on Prototype II in less than 2 years. Field testing at Nevada Test Site has proven the feasibility of the downhole changing mechanism. The development and testing of this prototype are described.

St. Clair, J.A.; Duimstra, F.A.; Varnado, S.G.

1979-01-01T23:59:59.000Z

216

Quantum Mechanics and Black Holes  

E-Print Network (OSTI)

This paper discusses the existence of black holes from the foundations of quantum mechanics. It is found that quantum mechanics rule out a possible gravitational collapse.

Jose N. Pecina-Cruz

2005-11-11T23:59:59.000Z

217

Mechanical Operations and Maintenance  

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

Holiday Work Status Holiday Work Status Mechanical Operations & Maintenance Group APS Storage Ring Magnets The Advanced Photon Source (APS) at the Argonne National Laboratory is a national synchrotron-radiation research facility funded by the U.S. Department of Energy. Using high-brilliance x-ray beams from the APS, an international community of scientists conducts forefront basic and applied research in the fields of material science, biological science, physics, chemistry, environmental, geophysical and planetary science. The 1.1-km circumference APS facility consists of several major subsystems including magnets, vacuum chambers, radio-frequency cavities, diagnostics instrumentation, x-ray absorbers and apertures, and cooling water subsystems. Each of these subsystems contains hundreds of mechanical

218

NUT SCREW MECHANISMS  

DOE Patents (OSTI)

A reactor control mechanism is described wherein the control is achieved by the partial or total withdrawal of the fissile material which is in the form of a fuel rod. The fuel rod is designed to be raised and lowered from the reactor core area by means of two concentric ball nut and screw assemblies that may telescope one within the other. These screw mechanisms are connected through a magnetic clutch to a speed reduction gear and an accurately controllable prime motive source. With the clutch energized, the fuel rod may be moved into the reactor core area, and fine adjustments may be made through the reduction gearing. However, in the event of a power failure or an emergency signal, the magnetic clutch will become deenergized, and the fuel rod will drop out of the core area by the force of gravity, thus shutting down the operation of the reactor.

Glass, J.A.F.

1958-07-01T23:59:59.000Z

219

Testing quantum mechanics  

E-Print Network (OSTI)

As experiments continue to push the quantum-classical boundary to include increasingly complex dynamical systems, the interpretation of experimental data becomes more and more challenging: when the observations are noisy, indirect, and limited, how can we be sure that we are observing quantum behavior? This tutorial highlights some of the difficulties in such experimental tests of quantum mechanics, using optomechanics as the central example, and discusses how the issues can be resolved using techniques from statistics and insights from quantum information theory.

Mankei Tsang

2013-06-12T23:59:59.000Z

220

Company Name Company Name Address Place Zip Sector Product Website  

Open Energy Info (EERE)

Co Ltd China Hydro China based small hydro CDM project developer Gansu Huineng New Energy Technology Development Co Ltd Gansu Huineng New Energy Technology Development Co...

Note: This page contains sample records for the topic "development mechanism cdm" 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

Measurement of Mechanical and Electrical  

Science Conference Proceedings (OSTI)

Measurement of Mechanical and Electrical Properties of Ultra-thin Insulating Films. NIST Nanomechanical Properties Group ...

2012-10-01T23:59:59.000Z

222

Fundamental Interaction Mechanisms of Engineered ...  

Science Conference Proceedings (OSTI)

Fundamental Interaction Mechanisms of Engineered Nanomaterials with DNA. Summary: We utilized isotope-dilution liquid ...

2012-10-01T23:59:59.000Z

223

Understanding Bohmian mechanics: A dialogue  

E-Print Network (OSTI)

This paper is an introduction to the ideas of Bohmian mechanics, an interpretation of quantum mechanics in which the observer plays no fundamental role. Bohmian mechanics describes, instead of probabilities of measurement results, objective microscopic events. In recent years, Bohmian mechanics has attracted increasing attention by researchers. The form of a dialogue allows me to address questions about the Bohmian view that often arise.

Roderich Tumulka

2004-08-18T23:59:59.000Z

224

Bohmian Mechanics Detlef Durr1  

E-Print Network (OSTI)

Bohmian Mechanics Detlef D¨urr1 , Sheldon Goldstein2 , Roderich Tumulka3 , and Nino Zangh`i4, Via Dodecaneso 33, 16146 Genova, Italy. E-mail: zanghi@ge.infn.it #12;Bohmian mechanics is a theory mechanics, observers see the same statistics for experimental results as predicted by quantum mechanics

Goldstein, Sheldon

225

Mechanisms of gas bubble retention  

Science Conference Proceedings (OSTI)

Retention and episodic release of flammable gases are critical safety concerns regarding double-shell tanks (DSTs) containing waste slurries. Previous investigations have concluded that gas bubbles are retained by the slurry that has settled at the bottom of the DST. However, the mechanisms responsible for the retention of these bubbles are not well understood. In addition, the presence of retained gas bubbles is expected to affect the physical properties of the sludge, but essentially no literature data are available to assess the effect of these bubbles. The rheological behavior of the waste, particularly of the settled sludge, is critical to characterizing the tendency of the waste to retain gas bubbles. The objectives of this study are to elucidate the mechanisms contributing to gas bubble retention and release from sludge such as is in Tank 241-SY-101, understand how the bubbles affect the physical properties of the sludge, develop correlations of these physical properties to include in computer models, and collect experimental data on the physical properties of simulated sludges with bubbles. This report presents a theory and experimental observations of bubble retention in simulated sludge and gives correlations and new data on the effect of gas bubbles on sludge yield strength.

Gauglitz, P.A.; Mahoney, L.A.; Mendoza, D.P.; Miller, M.C.

1994-09-01T23:59:59.000Z

226

Fusion Development Facility Coil Mechanical and Structural Design (A26446)  

E-Print Network (OSTI)

Proc. Of 23rd IEEE/NPSS Symposium On Fusion Engineering, San Diego, California; To Be Published In The Proceedings23rd IEEE/NPSS Symposium on Fusion Engineering San Diego California, US, 2009999616350

Titus, P.H.

2009-06-10T23:59:59.000Z

227

Uncertainty in Clean Development Mechanism Baselines: Sources, Ramifications, and Negotiations  

E-Print Network (OSTI)

project. Forexample,ifawindfarmprojectis expectedenergy generation from a wind farm which are, in

Bushey, Douglas

2005-01-01T23:59:59.000Z

228

Mechanical and Chemical Development of Alkali Activated Slag ...  

Science Conference Proceedings (OSTI)

Materialization of Manganese by Selective Precipitation from Used Battery Materials ... The Challenge of Allocation in LCA: The Case of Open-Loop Recycling.

229

Development of Load Tap Changer Monitoring Technique: Mechanism of Coking  

Science Conference Proceedings (OSTI)

Load tap changers (LTCs) play a major role in the reliable delivery of electric power. They are the single biggest contributors to transformer outages. To improve reliability and extend their service interval, utilities are adopting proactive maintenance practices using monitoring devices and seeking new diagnostic techniques. As part of an ongoing EPRI project, EPRI and cosponsor Consolidated Edison Co. of New York, Inc. engaged in a study of contact coking, one of the biggest problems in LTCs. This EPR...

2001-11-27T23:59:59.000Z

230

The Development Mechanism for Tibetan Plateau Warm Vortices  

Science Conference Proceedings (OSTI)

The low-level cyclonic vortices which form over the Tibetan Plateau in the summer monsoon season are major rain-producing systems and have the potential to trigger cyclogenesis on the lee side when they move off the plateau. Two cases of the ...

Bin Wang

1987-10-01T23:59:59.000Z

231

Process Development and Mechanical Properties of Alloy U720Li ...  

Science Conference Proceedings (OSTI)

subsolvus solutionning, as a result of oil quenching. For future ... It is also noticeable that the HIP-B material shows an enhanced creep strength ... reduction. - to ensure the possible recovery of an homogeneous and ..... spirit and technical support provided by Aubert&Duval. Holding. Particular ... Technology, vol.122,. (2000)...

232

Drill drive mechanism  

DOE Patents (OSTI)

A drill drive mechanism is especially adapted to provide both rotational drive and axial feed for a drill of substantial diameter such as may be used for drilling holes for roof bolts in mine shafts. The drill shaft is made with a helical pattern of scroll-like projections on its surface for removal of cuttings. The drill drive mechanism includes a plurality of sprockets carrying two chains of drive links which are arranged to interlock around the drill shaft with each drive link having depressions which mate with the scroll-like projections. As the chain links move upwardly or downwardly the surfaces of the depressions in the links mate with the scroll projections to move the shaft axially. Tangs on the drive links mate with notch surfaces between scroll projections to provide a means for rotating the shaft. Projections on the drive links mate together at the center to hold the drive links tightly around the drill shaft. The entire chain drive mechanism is rotated around the drill shaft axis by means of a hydraulic motor and gear drive to cause rotation of the drill shaft. This gear drive also connects with a differential gearset which is interconnected with a second gear. A second motor is connected to the spider shaft of the differential gearset to produce differential movement (speeds) at the output gears of the differential gearset. This differential in speed is utilized to drive said second gear at a speed different from the speed of said gear drive, this speed differential being utilized to drive said sprockets for axial movement of said drill shaft.

Dressel, Michael O. (Englewood, CO)

1979-01-01T23:59:59.000Z

233

Heat Transfer and Fluid Mechanics - Nuclear Engineering Division (Argonne)  

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

Engineering Computation Engineering Computation and Design > Heat Transfer and Fluid Mechanics Capabilities Engineering Computation and Design Engineering and Structural Mechanics Systems/Component Design, Engineering and Drafting Heat Transfer and Fluid Mechanics Overview Thermal Hydraulic Optimization of Nuclear Systems Underhood Thermal Management Combustion Simulations Advanced Model and Methodology Development Multi-physics Reactor Performance and Safety Simulations Other Capabilities Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE on Flickr Heat Transfer and Fluid Mechanics Bookmark and Share Engineering Simulation Capabilities at Argonne Nuclear Engineering Division The Engineering Simulation section specializes in the development and

234

UNDP-Adaptation Learning Mechanism | Open Energy Information  

Open Energy Info (EERE)

Adaptation Learning Mechanism Adaptation Learning Mechanism Jump to: navigation, search Logo: UNDP-Adaptation Learning Mechanism Name UNDP-Adaptation Learning Mechanism Agency/Company /Organization United Nations Development Programme Sector Climate, Energy, Land, Water Topics Adaptation Resource Type Lessons learned/best practices, Training materials Website http://www.adaptationlearning. Program Start 2007 References Adaptation Learning Mechanism[1] Abstract Seeking to provide stakeholders with a common platform for sharing and learning, the ALM bridges knowledge gaps by bringing relevant knowledge and stakeholders together to exchange information, experiences, and expertise. Additionally, the ALM complements the wide range of adaptation knowledge networks and initiatives already underway.

235

Mechanical Systems Qualification Standard  

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

61-2008 61-2008 June 2008 DOE STANDARD MECHANICAL SYSTEMS QUALIFICATION STANDARD DOE Defense Nuclear Facilities Technical Personnel U.S. Department of Energy AREA TRNG Washington, D.C. 20585 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. DOE-STD-1161-2008 ii This document is available on the Department of Energy Technical Standards Program Web Site at http://www.hss.energy.gov/nuclearsafety/techstds/ DOE-STD-1161-2008 iv INTENTIONALLY BLANK DOE-STD-1161-2008 v TABLE OF CONTENTS ACKNOWLEDGMENT................................................................................................................ vii PURPOSE ....................................................................................................................................1

236

Mechanics of Peridynamic Membranes  

National Nuclear Security Administration (NNSA)

JBAidun AdvMatSci090831 JBAidun AdvMatSci090831 1 Accurate Prediction of Dynamic Fracture with Peridynamics John B. Aidun & Stewart A. Silling Multiscale Dynamic Material Modeling Sandia National Laboratories Prague, Czech Republic August 30 - September 3, 2009 Joint U.S.-Russian Conference on Advances in Materials Science SAND2009-5095C Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. JBAidun AdvMatSci090831 2 Fracture Mechanics Theory and Dynamic Fracture * Onset of crack growth can be accurately predicted * Crack growth speed and direction cannot! Wanted: A successful method for simulating Dynamic Fracture * Such a method must be able to reproduce the

237

Mechanical well jar  

Science Conference Proceedings (OSTI)

This patent describes a mechanical well jar having inner and outer tubular members movable longitudinally relative to each other a limited distance. Means for connecting one of the members to a pipe string extends above the jar. Means connect the other member to the pipe string below the jar. Annular shoulders on the members engage to limit the relative longitudinal movement of the members. The improvement comprises: laterally spaced, arcuate cam plates each attached to the inner surface of the outer member by threaded members that extend through the wall of the outer member and that can be removed from outside the outer member to allow the cam plates to be removed and repaired or replaced.

Burton, C.A.

1987-05-19T23:59:59.000Z

238

Rotary drive mechanism  

Science Conference Proceedings (OSTI)

This patent describes a rotary drive mechanism which includes a rotary solenoid having a stator and multi-poled rotor. A moving member rotates with the rotor and is biased by a biasing device. The biasing device causes a further rotational movement after rotation by the rotary solenoid. Thus, energization of the rotary solenoid moves the member in one direction to one position and biases the biasing device against the member. Subsequently, de- energization of the rotary solenoid causes the biasing device to move the member in the same direction to another position from where the moving member is again movable by energization and de-energization of the rotary solenoid. Preferably, the moving member is a multi-lobed cam having the same number of lobes as the rotor has poles. An anti- overdrive device is also preferably provided for preventing overdrive in the forward direction or a reverse rotation of the moving member and for precisely aligning the moving member.

Kenderdine, E.W.

1991-10-08T23:59:59.000Z

239

Rotary drive mechanism  

Science Conference Proceedings (OSTI)

A rotary drive mechanism includes a rotary solenoid having a stator and multi-poled rotor. A moving member rotates with the rotor and is biased by a biasing device. The biasing device causes a further rotational movement after rotation by the rotary solenoid. Thus, energization of the rotary solenoid moves the member in one direction to one position and biases the biasing device against the member. Subsequently, de-energization of the rotary solenoid causes the biasing device to move the member in the same direction to another position from where the moving member is again movable by energization and de-energization of the rotary solenoid. Preferably, the moving member is a multi-lobed cam having the same number of lobes as the rotor has poles. An anti-overdrive device is also preferably provided for preventing overdrive in the forward direction or a reverse rotation of the moving member and for precisely aligning the moving member.

Kenderdine, Eugene W. (Albuquerque, NM)

1991-01-01T23:59:59.000Z

240

Mechanically expandable annular seal  

DOE Patents (OSTI)

A mechanically expandable annular reusable seal assembly to form an annular hermetic barrier between two stationary, parallel, and planar containment surfaces. A rotatable ring, attached to the first surface, has ring wedges resembling the saw-tooth array of a hole saw. Matching seal wedges are slidably attached to the ring wedges and have their motion restricted to be perpendicular to the second surface. Each seal wedge has a face parallel to the second surface. An annular elastomer seal has a central annular region attached to the seal wedges' parallel faces and has its inner and outer circumferences attached to the first surface. A rotation of the ring extends the elastomer seal's central region perpendicularly towards the second surface to create the fluidtight barrier. A counterrotation removes the barrier.

Gilmore, Richard F. (Kennewick, WA)

1983-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "development mechanism cdm" 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

Mechanically expandable annular seal  

DOE Patents (OSTI)

A mechanically expandable annular reusable seal assembly to form an annular hermetic barrier between two stationary, parallel, and planar containment surfaces is described. A rotatable ring, attached to the first surface, has ring wedges resembling the saw-tooth array of a hole saw. Matching seal wedges are slidably attached to the ring wedges and have their motion restricted to be perpendicular to the second surface. Each seal wedge has a face parallel to the second surface. An annular elastomer seal has a central annular region attached to the seal wedges' parallel faces and has its inner and outer circumferences attached to the first surface. A rotation of the ring extends the elastomer seal's central region perpendicularly towards the second surface to create the fluid tight barrier. A counter rotation removes the barrier. 6 figs.

Gilmore, R.F.

1983-07-19T23:59:59.000Z

242

Microsystem Product Development  

E-Print Network (OSTI)

Over the last decade the successful design and fabrication of complex MEMS (MicroElectroMechanical Systems), optical circuits and ASICs have been demonstrated. Packaging and integration processes have lagged behind MEMS research but are rapidly maturing. As packaging processes evolve, a new challenge presents itself, microsystem product development. Product development entails the maturation of the design and all the processes needed to successfully produce a product. Elements such as tooling design, fixtures, gages, testers, inspection, work instructions, process planning, etc., are often overlooked as MEMS engineers concentrate on design, fabrication and packaging processes. Thorough, up-front planning of product development efforts is crucial to the success of any project.

Polosky, M -A

2007-01-01T23:59:59.000Z

243

Essays on dynamic sales mechanisms  

E-Print Network (OSTI)

This thesis is a collection of three essays on dynamic sales mechanisms. The first chapter analyzes the Name Your Own Price (NYOP) mechanism adopted by Priceline.com. Priceline.com, a website helping travelers obtain ...

Chen, Chia-Hui, Ph. D. Massachusetts Institute of Technology

2009-01-01T23:59:59.000Z

244

On Randomness in Quantum Mechanics  

E-Print Network (OSTI)

The quantum mechanical probability densities are compared with the probability densities treated by the theory of random variables. The relevance of their difference for the interpretation of quantum mechanics is commented.

Alberto C. de la Torre

2007-07-19T23:59:59.000Z

245

Mechanical Behavior at Nanoscale I  

Science Conference Proceedings (OSTI)

Jul 31, 2011 ... -Deformation mechanisms of nano structures including nanocrystalline, nano- twinned, nanowires, nano-laminates, and nano-pillars.

246

Mechanical Behavior of Materials Committee  

Science Conference Proceedings (OSTI)

The Mechanical Behavior of Materials Committee is part of the Structural Materials Division. Our Mission: Covers relationships between microstructure and

247

Security Components and Mechanisms Group  

Science Conference Proceedings (OSTI)

Security Components and Mechanisms Group. Welcome. ... A security checklist is a document that contains instructions for securely configuring ...

2013-01-17T23:59:59.000Z

248

SOLID MECHANICS James R. Rice  

E-Print Network (OSTI)

1 SOLID MECHANICS James R. Rice School of Engineering and Applied Sciences, and Department of Earth: February 2010 Downloadable at: http://esag.harvard.edu/rice/e0_Solid_Mechanics_94_10.pdf TABLE OF CONTENTS provided on last three pages, pp. 87-89 INTRODUCTION The application of the principles of mechanics to bulk

249

Ideas By Statistical Mechanics (ISM)  

Science Conference Proceedings (OSTI)

Ideas by Statistical Mechanics (ISM) is a generic program to model evolution and propagation of ideas/patterns throughout populations subjected to endogenous and exogenous interactions. The program is based on the author's work in Statistical Mechanics ... Keywords: neocortical interactions, risk management, simulated annealing, statistical mechanics

Lester Ingber

2007-08-01T23:59:59.000Z

250

Entanglement Exchange and Bohmian Mechanics  

E-Print Network (OSTI)

This paper analyses the phenomenon of entanglement exchange in Bohm's pilot wave interpretation of quantum mechanics. The interesting feature of the phenomenon is that systems become entangled without causal interaction; hence it is a useful situation for investigating the unique nature of interaction in Bohmian mechanics. The first two sections introduce, respectively, entanglement exchange in the standard interpretation of quantum mechanics, and the basic principles of Bohmian mechanics. The next section shows that the Bohmian interpretation makes the same experimental predictions about entanglement exchange as the standard one. The final section draws some conclusions about interactions and entanglement in Bohmian mechanics.

Nick Huggett; Tiziana Vistarini

2009-05-25T23:59:59.000Z

251

Relativistic mechanism of superconductivity  

E-Print Network (OSTI)

According to the theory of relativity, the relativistic Coulomb's force between an electron pair is composed of two parts, the main part is repulsive, while the rest part can be attractive in certain situations. Thus the relativistic attraction of an electron pair provides an insight into the mechanism of superconductivity. In superconductor, there are, probably at least, two kinds of collective motions which can eliminate the repulsion between two electrons and let the attraction being dominant, the first is the combination of lattice and electron gas, accounting for traditional superconductivity; the second is the electron gas themselves, accounting for high $T_c$ superconductivity. In usual materials, there is a good balance between the repulsion and attraction of an electron pair, the electrons are regarded as free electrons so that Fermi gas theory plays very well. But in some materials, when the repulsion dominates electron pairs, the electron gas will has a behavior opposite to superconductivity. In the present paper the superconducting states are discussed in terms of relativistic quantum theory in details, some significant results are obtained including quantized magnetic flux, London equation, Meissner effect and Josephson effect.

H. Y. Cui

2002-12-17T23:59:59.000Z

252

N=8 superconformal mechanics  

E-Print Network (OSTI)

We construct new models of N=8 superconformal mechanics associated with the off-shell N=8, d=1 supermultiplets (3,8,5) and (5,8,3). These two multiplets are derived as N=8 Goldstone superfields and correspond to nonlinear realizations of the N=8, d=1 superconformal group OSp(4^*|4) in its supercosets OSp(4^*|4)/U(1)_R x SO(5) and OSp(4^*|4)/SU(2)_R x SO(4), respectively. The irreducibility constraints for these superfields automatically follow from appropriate superconformal covariant conditions on the Cartan superforms. The N=8 superconformal transformations of the superspace coordinates and the Goldstone superfields are explicitly given. Interestingly, each N=8 supermultiplet admits two different off-shell N=4 decompositions, with different N=4 superconformal subgroups SU(1,1|2) and OSp(4^*|2) of OSp(4^*|4) being manifest as superconformal symmetries of the corresponding N=4, d=1 superspaces. We present the actions for all such N=4 splittings of the N=8 multiplets considered.

S. Bellucci; E. Ivanov; S. Krivonos; O. Lechtenfeld

2003-12-31T23:59:59.000Z

253

The Cooperative Research and Development Agreement A Cooperative...  

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

Cooperative Research and Development Agreement A Cooperative Research and Development Agreement (CRADA) is a mechanism whereby non-federal entities (industry, universities,...

254

Thermo-Mechanical Processing Parameters for the INCONEL ALLOY 740  

SciTech Connect

In 2000, a Cooperative Research and Development Agreement (CRADA) was undertaken between the Oak Ridge National Laboratory (ORNL) and the Special Metals Corporation (SMC) to determine the mechanical property response of the IN740 alloy to help establish thermo-mechanical processing parameters for the use of this alloy in supercritical and ultra-critical boiler tubes with the potential for other end uses. SMC had developed an alloy, commercially known as INCONEL alloy 740, which exhibited various beneficial physical, mechanical, and chemical properties. As part of SMC's on-going efforts to optimize this alloy for targeted boiler applications there was a need to develop an understanding of the thermo-mechanical response of the material, characterize the resulting microstructure from this processing, and possibly, utilize models to develop the appropriate processing scheme for this product.

Ludtka, G.M.; Smith, G.

2007-11-19T23:59:59.000Z

255

Clock mechanisms and their effects, leads into steam engine  

E-Print Network (OSTI)

In a clock-makers shop, Simon Schaffer explains the great precision needed to make clocks, and the development of standardized parts. The feed-back mechanisms or governors are absolutely essential in the first stationary steam engines....

Dugan, David

2004-08-17T23:59:59.000Z

256

Design and implementation of nanoscale fiber mechanical testing apparatus  

E-Print Network (OSTI)

The rapid growth in the synthetic manufacturing industry demands higher resolution mechanical testing devices, capable of working with nanoscale fibers. A new device has been developed to perform single-axis tensile tests ...

Brayanov, Jordan, 1981-

2004-01-01T23:59:59.000Z

257

Harmful Shunting Mechanisms Found in Silicon Solar Cells (Fact Sheet)  

DOE Green Energy (OSTI)

Scientists developed near-field optical microscopy for imaging electrical breakdown in solar cells and identified critical electrical breakdown mechanisms operating in industrial silicon and epitaxial silicon solar cells.

Not Available

2011-05-01T23:59:59.000Z

258

Automated generation of kinetic chemical mechanisms using rewriting  

Science Conference Proceedings (OSTI)

Several software systems have been developed recently for the automated generation of combustion reactions kinetic mechanisms using different representations of species and reactions and different generation algorithms. In parallel, several software ...

Olivier Bournez; Guy-Marie Cme; Valrie Conraud; Hlne Kirchner; Liliana Ib?nescu

2003-06-01T23:59:59.000Z

259

Partially autonomous conceptual development of multifunctional structures  

Science Conference Proceedings (OSTI)

Partially autonomous conceptual development of Multifunctional Structures (MFSs) is achieved using an analogy with two mechanisms found in embryo development in biology: induction and gene transcription. The induction model is achieved autonomously ...

Yuemin Hou; Linhong Ji

2011-02-01T23:59:59.000Z

260

Mechanical drill string jar  

SciTech Connect

An improved mechanical drill string jar is described that allows uninhibited telescoping movement to the normal drilling condition. The drill string jar consists of: (a) an elongated, generally cylindrical, body usable as a drill string element; (b) axial motion resistance means situated in the annular opening; (c) bias means operatively associated with at least one element of the splined pair to rotate the pair out of alignment when the splined pair is rotationally disengaged; (d) opposed cooperating surfaces on at least two of the spline teeth situated such that forced axial relative motion of the splined pair will produce opposed radial forces on the teeth; (e) means intrinsic to at least one element of the splined pair to permit resisted radial displacement of the spline teeth when forced axial relative motion occurs, to permit one element to move axially through the other; (f) cam surfaces on at least one of the teeth situated to force rotational alignment of the splined pair when telescoping movement is from a jarring condition toward the normal drilling condition; (g) relative rotation resistance means situated in the annular opening, structurally engaged with the pair of telescoping members such that relative rotation therebetween will be resisted; (h) striker and anvil means situated in the annular opening, operatively associated with the telescoping pair of elements, such that axial relative movement therebetween will be solidly stopped at the axial extreme condition; (i) a flow-through fluid channel means extending between the means to attach to the continuing drill string; and (j) seal means situated in the annular opening, operatively associated with the telescoping pair of members, to provide fluid tightness therebetween.

Buck, D.A.

1987-08-25T23:59:59.000Z

Note: This page contains sample records for the topic "development mechanism cdm" 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

A statistical mechanical curiosity  

E-Print Network (OSTI)

Unlike most other laws of nature, the second law of thermodynamics is according to Boltzmann statistical in nature, meaning that its reliability arises from the vast number of particles present in macroscopic systems. This means that such systems will lead towards their most likely state, that is, the one with the most homogeneous probability distribution. But Boltzmann states that entropy decreasing processes can occur (without doing any work), it is just very improbable. It is therefore not impossible, in principle, for all 6 x 10^23 atoms in a mole of a gas to spontaneously move to one half of a container; it is only fantastically unlikely. A similar idea has been applied on a human cell. All somatic cells seem to age and deteriorate in unfavorable conditions. If the aging process is defined as the accumulation of dysfunctional polymers resulting from among other things chemical bond breakage, where polymers aggregate into harmful arrangements, spreading randomly out in the cell, leading to an altered function, then it also applies that there will be a difference in entropy between an individual of, say, 20 years, and the same individual 80 years old. The goal of this article is to demonstrate that the second law does not tell us that the cell necessarily must go toward a high entropy state and stay that way, but that it is possible according to statistical mechanics for an old cell to experience a return to a younger state. We find the probability of this spontaneous return to a more ordered state to be expressed by P = 10^(-202)^(-889). In spite of this number, it does show that a reversal of the aging process is not prohibited by nature. There is a theoretical possibility of rejuvenation. Whether this will ever become a practical reality is another matter.

Ian von Hegner

2012-12-05T23:59:59.000Z

262

FUEL HANDLING MECHANISM  

DOE Patents (OSTI)

A remotely operable handling device specifically adapted for the handling of vertically disposed fuel rods in a nuclear reactor was developed. The device consists essentially of an elongated tubular member having a gripping device at the lower end of the pivoted jaw type adapted to grip an enlarged head on the upper end of the workpiece. The device includes a sensing element which engages the enlarged head and is displaced to remotely indicate when the workpiece is in the proper position to be engaged by the jaws.

Koch, L.J.; Hutter, E.

1960-02-01T23:59:59.000Z

263

Nanomaterials: Mechanics and Mechanisms (2008), by K.T. Ramesh  

Science Conference Proceedings (OSTI)

Mar 10, 2010 ... At nanoscale, matters show distinctly different behaviors from their bulk materials, from mechanical properties to physical and chemical...

264

Cavity Cooling of a Mechanical Resonator in Amorphous Systems  

E-Print Network (OSTI)

Cavity cooling via quantum back-action force can extract thermal fluctuations from a mechanical resonator to reach the quantum ground state. The two-level system (TLS) defects in the surface of a mechanical resonator couple to the mechanical mode via deformation potential and can affect the cooling process significantly. Here, we develop a theory to study the cavity cooling of a mechanical mode in the presence of a TLS defect using the adiabatic elimination technique. Our result shows that the cooling process depends strongly on the resonance and damping rate of the TLS.

Tian, L

2010-01-01T23:59:59.000Z

265

Characterization of porosity in support of mechanical property analysis  

SciTech Connect

Previous laboratory investigations of tuff have shown that porosity has a dominant, general effect on mechanical properties. As a result, it is very important for the interpretation of mechanical property data that porosity is measured on each sample tested. Porosity alone, however, does not address all of the issues important to mechanical behavior. Variability in size and distribution of pore space produces significantly different mechanical properties. A nondestructive technique for characterizing the internal structure of the sample prior to testing is being developed and the results are being analyzed. The information obtained from this technique can help in both qualitative and quantitative interpretation of test results.

Price, R.H. [Sandia National Labs., Albuquerque, NM (United States); Martin, R.J. III; Boyd, P.J. [New England Research, Inc., White River Junction, VT (United States)

1992-12-31T23:59:59.000Z

266

Pattern driven lazy reduction: A unifying evaluation mechanism for functional and logic programs  

Science Conference Proceedings (OSTI)

A novel lazy evaluation mechanism, pattern-driven lazy reduction, is developed that serves as a unifying evaluation mechanism for both functional and logic programs. The reduction of a function call can be viewed as semantically ...

P. A. Subrahmanyam; J-H. You

1984-01-01T23:59:59.000Z

267

A New Mechanism of Droplet Size Distribution Broadening during Diffusional Growth  

Science Conference Proceedings (OSTI)

A new mechanism has been developed for size distribution broadening toward large droplet sizes. This mechanism may explain the rapid formation of large cloud droplets, which may subsequently trigger precipitation formation through the collision...

Alexei Korolev; Mark Pinsky; Alex Khain

2013-07-01T23:59:59.000Z

268

THERMODYNAMICS AND MECHANISMS OF SINTERING  

E-Print Network (OSTI)

E. Hoge and Joseph A. Pask, "Thermodynamics of So:!.id StateJoseph A. Pask, "Thermodynamics and Geometric Considerations8419 r- ,y / ( /)~; - - I THERMODYNAMICS AND MECHANISMS OF

Pask, J.A.

2011-01-01T23:59:59.000Z

269

PNNL: Doing Business - Contracting Mechanisms  

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

Contracting Mechanisms for Work with PNNL Does your small business need expert advice on a technical problem? Does your university research project require state-of-the-art...

270

Mechanical Properties of Thermoelectric Materials  

Science Conference Proceedings (OSTI)

Room Temperature Mechanical Properties of Natural Mineral Based Thermoelectrics: Xiaofeng Fan1; Eldon Case1; Xu Lu1; Donald Morelli1; 1 Michigan State...

271

Mechanical Behavior - Programmaster.org  

Science Conference Proceedings (OSTI)

Oct 20, 2011 ... Ceramic Matrix Composites: Mechanical Behavior ... such as leading edges and combustor liners, are subjected to simultaneous thermal and...

272

Mini Grid Renewable Energy-Financing Mechanisms | Open Energy Information  

Open Energy Info (EERE)

Mini Grid Renewable Energy-Financing Mechanisms Mini Grid Renewable Energy-Financing Mechanisms Jump to: navigation, search Tool Summary Name: Mini Grid Renewable Energy-Financing Mechanisms Agency/Company /Organization: World Bank Sector: Energy Focus Area: Renewable Energy Topics: Finance Website: web.worldbank.org/WBSITE/EXTERNAL/TOPICS/EXTENERGY2/EXTRENENERGYTK/0,, References: Mini Grid Renewable Energy-Financing Mechanisms[1] Resources Rural Electrification, Micro-finance and Micro and Small Business (MSB) Development: Lessons for the Nicaragua Off-grid Rural Electrification Project, ESMAP, M. Motta and K. Reiche. References ↑ "Mini Grid Renewable Energy-Financing Mechanisms" Retrieved from "http://en.openei.org/w/index.php?title=Mini_Grid_Renewable_Energy-Financing_Mechanisms&oldid=328980

273

Designing Renewable Energy Financing Mechanism Terms of Reference | Open  

Open Energy Info (EERE)

Designing Renewable Energy Financing Mechanism Terms of Reference Designing Renewable Energy Financing Mechanism Terms of Reference Jump to: navigation, search Tool Summary Name: Designing Renewable Energy Financing Mechanisms Agency/Company /Organization: World Bank Sector: Energy Focus Area: Renewable Energy Topics: Finance, Implementation, Market analysis Website: web.worldbank.org/WBSITE/EXTERNAL/TOPICS/EXTENERGY2/EXTRENENERGYTK/0,, References: Designing Renewable Energy Financing Mechanisms[1] Resources Design of Micro-hydro Funding Facility and Community Mobilization Support Design of Institutional and Financial Intermediation Scheme for a Micro hydro Power Development Program Design of a Rural Energy Fund References ↑ "Designing Renewable Energy Financing Mechanisms" Retrieved from "http://en.openei.org/w/index.php?title=Designing_Renewable_Energy_Financing_Mechanism_Terms_of_Reference&oldid=383234"

274

Quantum chaos in elementary quantum mechanics  

E-Print Network (OSTI)

chaos in elementary quantum mechanics so-called integrableIntroduction to Quantum Mechanics (Englewoods Cliff, NJ:Lifshitz E M 1977 Quantum Mechanics (New York: Pergamon) [

Dabaghian, Yuri A; Jensen, R

2005-01-01T23:59:59.000Z

275

129 Lecture Notes Relativistic Quantum Mechanics  

E-Print Network (OSTI)

129 Lecture Notes Relativistic Quantum Mechanics 1 Need for Relativistic Quantum Mechanics's equation of motion in mechanics. The initial condtions to solve the Newton's equation of motion

Murayama, Hitoshi

276

Modeling the Mechanics of the Cytoskeleton  

E-Print Network (OSTI)

Mechanics . . . . . . . . . . . . . . . . . . . . . . .t contribute to the networks mechanics have been removed.R.D. Kamm, Cytoskeletal Mechanics, models and measurements,

Bai, Mo

2012-01-01T23:59:59.000Z

277

Successful Project Financing Mechanisms: ESPCs and UESCs Webinar |  

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

Successful Project Financing Mechanisms: ESPCs and UESCs Webinar Successful Project Financing Mechanisms: ESPCs and UESCs Webinar Successful Project Financing Mechanisms: ESPCs and UESCs Webinar September 24, 2014 11:00AM MDT The attendees will learn about two popular mechanisms developed for Federal agencies to finance renewable energy and energy efficiency projects, Energy savings performance contracts (ESPCs) and utility energy service contracts (UESCs). The discussion includes how these two methods allow Tribes to develop the projects with limited to no up-front capital costs, thus minimizing the need for including the project costs in budgets or requesting Congressional appropriations for them. The speakers will also identify best implementation practices developed over nearly 15 years and hundreds of projects. There is no cost to attend the webinar, but advance

278

Non-Class 1 Mechanical Implementation Guideline and Mechanical Tools, Revision 4  

Science Conference Proceedings (OSTI)

As part of the application process for license renewal, U.S. nuclear utilities must perform an evaluation to confirm that they have appropriately considered aging effects on plant components within the scope of the License Renewal Rule. An aging management plan must be developed for all Class 1 and non-Class 1 components subject to aging effects. This report presents a set of "mechanical tools" utilities can use to determine which aging effects are applicable to non-Class 1 mechanical components.

2006-01-23T23:59:59.000Z

279

IGES-Market Mechanism Group | Open Energy Information  

Open Energy Info (EERE)

IGES-Market Mechanism Group IGES-Market Mechanism Group Jump to: navigation, search Tool Summary LAUNCH TOOL Name: IGES-Market Mechanism Agency/Company /Organization: Institute for Global Environmental Strategies (IGES) Sector: Climate, Energy Focus Area: Renewable Energy Topics: Market analysis Resource Type: Training materials Website: www.iges.or.jp/en/cdm/index.html Cost: Free Language: "English, Japanese" is not in the list of possible values (Abkhazian, Achinese, Acoli, Adangme, Adyghe; Adygei, Afar, Afrihili, Afrikaans, Afro-Asiatic languages, Ainu, Akan, Akkadian, Albanian, Aleut, Algonquian languages, Altaic languages, Amharic, Angika, Apache languages, Arabic, Aragonese, Arapaho, Arawak, Armenian, Aromanian; Arumanian; Macedo-Romanian, Artificial languages, Assamese, Asturian; Bable; Leonese; Asturleonese, Athapascan languages, Australian languages, Austronesian languages, Avaric, Avestan, Awadhi, Aymara, Azerbaijani, Balinese, Baltic languages, Baluchi, Bambara, Bamileke languages, Banda languages, Bantu (Other), Basa, Bashkir, Basque, Batak languages, Beja; Bedawiyet, Belarusian, Bemba, Bengali, Berber languages, Bhojpuri, Bihari languages, Bikol, Bini; Edo, Bislama, Blin; Bilin, Blissymbols; Blissymbolics; Bliss, Bosnian, Braj, Breton, Buginese, Bulgarian, Buriat, Burmese, Caddo, Catalan; Valencian, Caucasian languages, Cebuano, Celtic languages, Central American Indian languages, Central Khmer, Chagatai, Chamic languages, Chamorro, Chechen, Cherokee, Cheyenne, Chibcha, Chichewa; Chewa; Nyanja, Chinese, Chinook jargon, Chipewyan; Dene Suline, Choctaw, Chuukese, Chuvash, Classical Newari; Old Newari; Classical Nepal Bhasa, Classical Syriac, Coptic, Cornish, Corsican, Cree, Creek, Creoles and pidgins , Crimean Tatar; Crimean Turkish, Croatian, Cushitic languages, Czech, Dakota, Danish, Dargwa, Delaware, Dinka, Divehi; Dhivehi; Maldivian, Dogri, Dogrib, Dravidian languages, Duala, Dutch; Flemish, Dyula, Dzongkha, Eastern Frisian, Efik, Egyptian (Ancient), Ekajuk, Elamite, English, Erzya, Esperanto, Estonian, Ewe, Ewondo, Fang, Fanti, Faroese, Fijian, Filipino; Pilipino, Finnish, Finno-Ugrian languages, Fon, French, Friulian, Fulah, Ga, Gaelic; Scottish Gaelic, Galibi Carib, Galician, Ganda, Gayo, Gbaya, Geez, Georgian, German, Germanic languages, Gilbertese, Gondi, Gorontalo, Gothic, Grebo, Greek, Modern, Guarani, Gujarati, Gwich'in, Haida, Haitian; Haitian Creole, Hausa, Hawaiian, Hebrew, Herero, Hiligaynon, Himachali languages; Western Pahari languages, Hindi, Hiri Motu, Hittite, Hmong; Mong, Hungarian, Hupa, Iban, Icelandic, Ido, Igbo, Ijo languages, Iloko, Inari Sami, Indic languages, Indo-European languages, Indonesian, Ingush, Interlingue; Occidental, Inuktitut, Inupiaq, Iranian languages, Irish, Iroquoian languages, Italian, Japanese, Javanese, Judeo-Arabic, Judeo-Persian, Kabardian, Kabyle, Kachin; Jingpho, Kalaallisut; Greenlandic, Kalmyk; Oirat, Kamba, Kannada, Kanuri, Kara-Kalpak, Karachay-Balkar, Karelian, Karen languages, Kashmiri, Kashubian, Kawi, Kazakh, Khasi, Khoisan languages, Khotanese; Sakan, Kikuyu; Gikuyu, Kimbundu, Kinyarwanda, Kirghiz; Kyrgyz, Klingon; tlhIngan-Hol, Komi, Kongo, Konkani, Korean, Kosraean, Kpelle, Kru languages, Kuanyama; Kwanyama, Kumyk, Kurdish, Kurukh, Kutenai, Ladino, Lahnda, Lamba, Land Dayak languages, Lao, Latin, Latvian, Lezghian, Limburgan; Limburger; Limburgish, Lingala, Lithuanian, Lojban, Lower Sorbian, Lozi, Luba-Katanga, Luba-Lulua, Luiseno, Lule Sami, Lunda, Luo (Kenya and Tanzania), Lushai, Luxembourgish; Letzeburgesch, Macedonian, Madurese, Magahi, Maithili, Makasar, Malagasy, Malay, Malayalam, Maltese, Manchu, Mandar, Mandingo, Manipuri, Manobo languages, Manx, Maori, Mapudungun; Mapuche, Marathi, Mari, Marshallese, Marwari, Masai, Mayan languages, Mende, Mi'kmaq; Micmac, Minangkabau, Mirandese, Mohawk, Moksha, Mon-Khmer languages, Mongo, Mongolian, Mossi, Multiple languages, Munda languages, N'Ko, Nahuatl languages, Nauru, Navajo; Navaho, Ndebele, North; North Ndebele, Ndebele, South; South Ndebele, Ndonga, Neapolitan, Nepal Bhasa; Newari, Nepali, Nias, Niger-Kordofanian languages, Nilo-Saharan languages, Niuean, North American Indian languages, Northern Frisian, Northern Sami, Norwegian, Nubian languages, Nyamwezi, Nyankole, Nyoro, Nzima, Occitan (post 1500); Provençal, Ojibwa, Oriya, Oromo, Osage, Ossetian; Ossetic, Otomian languages, Pahlavi, Palauan, Pali, Pampanga; Kapampangan, Pangasinan, Panjabi; Punjabi, Papiamento, Papuan languages, Pedi; Sepedi; Northern Sotho, Persian, Philippine languages, Phoenician, Pohnpeian, Polish, Portuguese, Prakrit languages, Pushto; Pashto, Quechua, Rajasthani, Rapanui, Rarotongan; Cook Islands Maori, Romance languages, Romanian; Moldavian; Moldovan, Romansh, Romany, Rundi, Russian, Salishan languages, Samaritan Aramaic, Sami languages, Samoan, Sandawe, Sango, Sanskrit, Santali, Sardinian, Sasak, Scots, Selkup, Semitic languages, Serbian, Serer, Shan, Shona, Sichuan Yi; Nuosu, Sicilian, Sidamo, Sign Languages, Siksika, Sindhi, Sinhala; Sinhalese, Sino-Tibetan languages, Siouan languages, Skolt Sami, Slave (Athapascan), Slavic languages, Slovak, Slovenian, Sogdian, Somali, Songhai languages, Soninke, Sorbian languages, Sotho, Southern, South American Indian (Other), Southern Altai, Southern Sami, Spanish; Castilian, Sranan Tongo, Sukuma, Sumerian, Sundanese, Susu, Swahili, Swati, Swedish, Swiss German; Alemannic; Alsatian, Syriac, Tagalog, Tahitian, Tai languages, Tajik, Tamashek, Tamil, Tatar, Telugu, Tereno, Tetum, Thai, Tibetan, Tigre, Tigrinya, Timne, Tiv, Tlingit, Tok Pisin, Tokelau, Tonga (Nyasa), Tonga (Tonga Islands), Tsimshian, Tsonga, Tswana, Tumbuka, Tupi languages, Turkish, Turkmen, Tuvalu, Tuvinian, Twi, Udmurt, Ugaritic, Uighur; Uyghur, Ukrainian, Umbundu, Uncoded languages, Undetermined, Upper Sorbian, Urdu, Uzbek, Vai, Venda, Vietnamese, Volapük, Votic, Wakashan languages, Walamo, Walloon, Waray, Washo, Welsh, Western Frisian, Wolof, Xhosa, Yakut, Yao, Yapese, Yiddish, Yoruba, Yupik languages, Zande languages, Zapotec, Zaza; Dimili; Dimli; Kirdki; Kirmanjki; Zazaki, Zenaga, Zhuang; Chuang, Zulu, Zuni) for this property.

280

Synthesis of molybdenum disilicide by mechanical alloying  

Science Conference Proceedings (OSTI)

We have used mechanical alloying (MA), a high-energy ball-milling process, to prepare MoSi{sub 2} and MoSi{sub 2}-based alloys starting from mixtures of the pure elements. This synthesis route has the potential for preparing oxygen-free MoSi{sub 2} and the flexibility for close control of second-phase additions. MA, first developed for producing oxide-dispersions in Ni-based superalloys, takes advantage of the atomic-level mixing accomplished by the intense mechanical working of the alloy constituents. All the alloying reactions during the process occur in the solid-state. This technique is thus well-suited for synthesizing high melting point materials such as MoSi{sub 2}. The product of the MA process is a highly homogeneous and fine-grained powder. Its purity is determined by the purity of the starting materials and possible impurities introduced during processing. However, a careful control of the MA process enables a minimization of the impurities. We also report here the consolidation of the mechanically alloyed powder and the characterization of the MoSi{sub 2} alloys by optical and transmission electron microscopy, x-ray diffraction, and mechanical property measurements. 21 refs., 9 figs.

Schwarz, R.B.; Srinivasan, S.R.; Petrovic, J.J.; Maggiore, C.J.

1991-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "development mechanism cdm" 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

Quantum mechanics as "space-time statistical mechanics"?  

E-Print Network (OSTI)

In this paper we discuss and analyse the idea of trying to see (non-relativistic) quantum mechanics as a ``space-time statistical mechanics'', by using the classical statistical mechanical method on objective microscopic space-time configurations. It is argued that this could perhaps be accomplished by giving up the assumption that the objective ``state'' of a system is independent of a future measurement performed on the system. This idea is then applied in an example of quantum state estimation on a qubit system.

Anders Mnsson

2005-01-24T23:59:59.000Z

282

Economic Development  

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

Corporation: 20,500 for upgrades to existing accounting software and training Three Eagles Development Corporation, Picuris Pueblo: 10,800 to update computer and account...

283

Geometric Mechanics -Part I January 13, 2009  

E-Print Network (OSTI)

Geometric Mechanics - Part I Bob Rink January 13, 2009 Contents 1 Mechanical systems 4 1.1 Two Lagrangian mechanics 9 2.1 New position variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-Lagrange equations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2.4 Natural mechanical systems

Hanssmann, Heinz

284

Geometric Mechanics -Part I January 23, 2009  

E-Print Network (OSTI)

Geometric Mechanics - Part I Bob Rink January 23, 2009 Contents 1 Mechanical systems 4 1.1 Two Lagrangian mechanics 9 2.1 New position variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-Lagrange equations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2.4 Natural mechanical systems

Rink, Bob

285

Quantum Mechanics and Representation Theory Columbia University  

E-Print Network (OSTI)

Quantum Mechanics and Representation Theory Peter Woit Columbia University Texas Tech, November 21 2013 Peter Woit (Columbia University) Quantum Mechanics and Representation Theory November 2013 1 / 30 #12;Does Anyone Understand Quantum Mechanics? "No One Understands Quantum Mechanics" "I think

Woit, Peter

286

Introductory statistical mechanics for electron storage rings  

Science Conference Proceedings (OSTI)

These lectures introduce the beam dynamics of electron-positron storage rings with particular emphasis on the effects due to synchrotron radiation. They differ from most other introductions in their systematic use of the physical principles and mathematical techniques of the non-equilibrium statistical mechanics of fluctuating dynamical systems. A self-contained exposition of the necessary topics from this field is included. Throughout the development, a Hamiltonian description of the effects of the externally applied fields is maintained in order to preserve the links with other lectures on beam dynamics and to show clearly the extent to which electron dynamics in non-Hamiltonian. The statistical mechanical framework is extended to a discussion of the conceptual foundations of the treatment of collective effects through the Vlasov equation.

Jowett, J.M.

1986-07-01T23:59:59.000Z

287

Internet Resource Pricing Models, Mechanisms, and Methods  

E-Print Network (OSTI)

With the fast development of video and voice network applications, CDN (Content Distribution Networks) and P2P (Peer-to-Peer) content distribution technologies have gradually matured. How to effectively use Internet resources thus has attracted more and more attentions. For the study of resource pricing, a whole pricing strategy containing pricing models, mechanisms and methods covers all the related topics. We first introduce three basic Internet resource pricing models through an Internet cost analysis. Then, with the evolution of service types, we introduce several corresponding mechanisms which can ensure pricing implementation and resource allocation. On network resource pricing methods, we discuss the utility optimization in economics, and emphasize two classes of pricing methods (including system optimization and entities' strategic optimizations). Finally, we conclude the paper and forecast the research direction on pricing strategy which is applicable to novel service situation in the near future.

He, Huan; Liu, Ying

2011-01-01T23:59:59.000Z

288

Microstructure Components and Mechanical Properties of an ...  

Science Conference Proceedings (OSTI)

Effects of Microstructural and Mechanical Length Scales on Fatigue Crack ... Components and Mechanical Properties of an Acicular Ferrite Pipeline Steel.

289

For Developers  

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

Developers Developers Services Overview ECS Audio/Video Conferencing Fasterdata IPv6 Network Network Performance Tools (perfSONAR) ESnet OID Registry PGP Key Service Virtual Circuits (OSCARS) OSCARS Case Study Documentation User Manual FAQ Design Specifications Functional Specifications Notifications Publications Authorization Policy Default Attributes Message Security Clients For Developers DCN/OSCARS Implementation (Aug 2007) AAA BSS Pathfinder Topology Path realization Dojo development Interfaces Links Hardware Requirements DOE Grids Service Transition Contact Us Technical Assistance: 1 800-33-ESnet (Inside the US) 1 800-333-7638 (Inside the US) 1 510-486-7600 (Globally) 1 510-486-7607 (Globally) Report Network Problems: trouble@es.net Provide Web Site Feedback: info@es.net For Developers DCN/OSCARS Implementation (Aug 2007)

290

Fracture Mechanics Investigations on High-Temperature Gas-Cooled Reactor Materials  

Science Conference Proceedings (OSTI)

C.5. Fracture Mechanic / Status of Metallic Materials Development for Application in Advanced High-Temperature Gas-Cooled Reactor / Material

Klaus Krompholz; Erik Bodmann; Gnter K. H. Gnirss; Horst Huthmann

291

Mechanical Properties of Welds in Commercial Alloys for High-Temperature Gas-Cooled Reactor Components  

Science Conference Proceedings (OSTI)

C. 1. Mechanical Property / Status of Metallic Materials Development for Application in Advanced High-Temperature Gas-Cooled Reactor / Material

James R. Lindgren; Brian E. Thurgood; Robin H. Ryder; Chia-Chuan Li

292

Mechanical behavior of tissue simulants and soft tissues under extreme loading conditions  

E-Print Network (OSTI)

Recent developments in computer-integrated surgery and in tissue-engineered constructs necessitate advances in experimental and analytical techniques in characterizing properties of mechanically compliant materials such ...

Kalcioglu, Zeynep Ilke

2013-01-01T23:59:59.000Z

293

A thermo-mechanically coupled theory for large deformations of amorphous polymers. Part I: Formulation  

E-Print Network (OSTI)

In this Part I, of a two-part paper, we present a detailed continuum-mechanical development of a thermomechanically

Anand, Lallit

294

Optimization of Global Reaction Mechanisms Evaluated on The Sandia Flame D.  

E-Print Network (OSTI)

??The main goal is to develop and evaluate global reaction mechanisms. The optimization is done using two methods; Laminar Flame Speed and Perfectly Stirred Reactor. (more)

Mohseni, Seyedmohammad

2012-01-01T23:59:59.000Z

295

HEAVY AND THERMAL OIL RECOVERY PRODUCTION MECHANISMS  

SciTech Connect

The Stanford University Petroleum Research Institute (SUPRI-A) conducts a broad spectrum of research intended to help improve the recovery efficiency from difficult to produce reservoirs including heavy oil and fractured low permeability systems. Our scope of work is relevant across near-, mid-, and long-term time frames. The primary functions of the group are to conduct direction-setting research, transfer research results to industry, and educate and train students for careers in industry. Presently, research in SUPRI-A is divided into 5 main project areas. These projects and their goals include: (1) Multiphase flow and rock properties--to develop better understanding of the physics of displacement in porous media through experiment and theory. This category includes work on imbibition, flow in fractured media, and the effect of temperature on relative permeability and capillary pressure. (2) Hot fluid injection--to improve the application of nonconventional wells for enhanced oil recovery and elucidate the mechanisms of steamdrive in low permeability, fractured porous media. (3) Mechanisms of primary heavy oil recovery--to develop a mechanistic understanding of so-called ''foamy oil'' and its associated physical chemistry. (4) In-situ combustion--to evaluate the effect of different reservoir parameters on the insitu combustion process. (5) Reservoir definition--to develop and improve techniques for evaluating formation properties from production information. What follows is a report on activities for the past year. Significant progress was made in all areas.

Anthony R. Kovscek; Louis M. Castanier

2002-09-30T23:59:59.000Z

296

Dislocations and Mechanical Properties - TMS  

Science Conference Proceedings (OSTI)

... 3.11 The Herring-Galt Experiment; 3.12 Multiplication Mechanisms of Dislocations; 3.13 The Frank-Read Double Mill ("Dislocation Source") and the Bulge...

297

The Interpretation of Quantum Mechanics  

E-Print Network (OSTI)

In this paper, we demonstrate how the interpretation of quantum mechanics due to Land\\'e resolves the Schr\\"odinger cat paradox and disposes of the problem of wave function collapse.

H. V. Mweene

2004-11-09T23:59:59.000Z

298

Hyper-Hamiltonian quantum mechanics  

E-Print Network (OSTI)

We present a modification of quantum mechanics with a *possible worlds* semantics. It is shown that `gauge' degrees of freedom along possible worlds can be used to encode gravitational information.

Vladimir Trifonov

2006-03-02T23:59:59.000Z

299

Quantum mechanics needs no interpretation  

E-Print Network (OSTI)

Probabilistic description of results of measurements and its consequences for understanding quantum mechanics are discussed. It is shown that the basic mathematical structure of quantum mechanics like the probability amplitude, Born rule, probability density current, commutation relations, momentum operator, uncertainty relations, rules for including the scalar and vector potentials and existence of antiparticles can be derived from the definition of the mean values of the space coordinates and time. Equations of motion of quantum mechanics, the Klein-Gordon equation, Schroedinger equation and Dirac equation are obtained from requirement of the relativistic invariance of the theory. Limit case of localized probability densities leads to the Hamilton-Jacobi equation of classical mechanics. Many particle systems are also discussed.

L. Skala; V. Kapsa

2004-12-22T23:59:59.000Z

300

Mechanisms of Banner Cloud Formation  

Science Conference Proceedings (OSTI)

Banner clouds are clouds in the lee of steep mountains or sharp ridges. Their formation has previously been hypothesized as due to three different mechanisms: (i) vertical uplift in a lee vortex (which has a horizontal axis), (ii) adiabatic ...

Matthias Voigt; Volkmar Wirth

2013-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "development mechanism cdm" 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

Alloy by Double Mechanical Milling  

Science Conference Proceedings (OSTI)

The results show that the morphology of double mechanical milling powder is regular and the TiAl phase and Ti3Al phase were observed in the powders.

302

Free will and quantum mechanics  

E-Print Network (OSTI)

A simple example is provided showing that violation of free will allows to reproduce the quantum mechanical predictions, and that the Clauser-Horne parameter can take the maximum value 4 for a proper choice.

Antonio Di Lorenzo

2011-05-05T23:59:59.000Z

303

Mechanical properties of nanophase materials  

SciTech Connect

It has become possible in recent years to synthesize new materials under controlled conditions with constituent structures on a nanometer size scale (below 100 nm). These novel nanophase materials have grain-size dependent mechanical properties significantly different than those of their coarser-grained counterparts. For example, nanophase metals are much stronger and apparently less ductile than conventional metals, while nanophase ceramics are more ductile and more easily formed than conventional ceramics. The observed mechanical property changes are related to grain size limitations and/or the large percentage of atoms in grain boundary environments; they can also be affected by such features as flaw populations, strains and impurity levels that can result from differing synthesis and processing methods. An overview of what is presently known about the mechanical properties of nanophase materials, including both metals and ceramics, is presented. Some possible atomic mechanisms responsible for the observed behavior in these materials are considered in light of their unique structures.

Siegel, R.W. [Argonne National Lab., IL (United States); Fougere, G.E. [Northwestern Univ., Evanston, IL (United States). Dept. of Materials Science and Engineering

1993-11-01T23:59:59.000Z

304

Mechanical drive for blood pump  

DOE Patents (OSTI)

This patent relates to a highly efficient blood pump to be used as a replacement for a ventricle of the human heart to restore people disabled by heart disease. The mechanical drive of the present invention is designed to operate in conjunction with a thermoelectric converter power source. The mechanical drive system essentially converts the output of a rotary power into pulsatile motion so that the power demand from the thermoelectric converter remains essentially constant while the blood pump output is pulsed. (auth)

Bifano, N.J.; Pouchot, W.D.

1975-07-29T23:59:59.000Z

305

Crack Growth in Solid Oxide Fuel Cell Materials: From Discrete to Continuum Damage Modeling  

Science Conference Proceedings (OSTI)

This paper addresses the cracking problem of glass and ceramic materials used in solid oxide fuel cells (SOFCs). Analyses of an internal crack and of an interface crack between dissimilar materials were conducted using a modified boundary layer modeling approach. In this approach, fracture is allowed to occur in a small process window situated at an initial crack tip. Elastic displacement crack-tip fields are prescribed as remote boundary conditions. Crack propagation was first modeled discretely. Next, a continuum damage mechanics (CDM) model for brittle materials was developed to capture damage and crack growth in the process window. In particular, the damage model was applied to a glass-ceramic material that had been developed in-house for sealing purposes. Discrete and continuum damage solutions were then compared. Finally, the CDM model was used to determine the crack propagation direction as a function of a mode mixity measure.

Nguyen, Ba Nghiep; Koeppel, Brian J.; Ahzi, Said; Khaleel, Mohammad A.; Singh, Prabhakar

2006-04-01T23:59:59.000Z

306

Methods Development  

Science Conference Proceedings (OSTI)

ISO committee and more information on standardization effects pertaining to AOCS. Methods Development Analytical Chemistry acid analysis Analytical Chemistry aocs applicants april articles atomic)FluorometryDifferential scanning calorimetry chemist chemi

307

Integral Transforms in Relativistic Quantum Constraint Mechanics  

E-Print Network (OSTI)

In relativistic quantum constraint mechanics the state of a physical system is constrained to a 3-dimensional subspace of Minkowski 4-space. Fourier transformation can be used to relate this state between constraint spaces in 4-position and 4-momentum space. It is shown that integral transforms of this nature can be carried out using Lorentz-invariant 3-dimensional constraint space coordinates such that a complete equivalence class of 4-space representations can be constructed from the transform. This method is further applied to develop a relativistic generalization of the Segal-Bargmann transformation that leads to the representation of quantum systems in a three-dimensional subspace of Bargmann 4-space.

Robert J. Ducharme

2011-01-29T23:59:59.000Z

308

Mechanical Devices Readiness FY04.0402.1  

SciTech Connect

This Advanced Design and Production Technologies (ADAPT) project funded production process and tooling improvements to meet and sustain rate production for the program mechanism assemblies. Techniques were developed to allow evaluation and rework of sealed mechanisms that will result in prevention of the scrapping of future mechanisms. Future system mechanisms will likely be smaller with tighter tolerance parts that will require improved inspection equipment and techniques. During the latter phase of this project, the ISL (Intent Stronglink) PRT (Product Realization Team) developed designs and manufacturing processes at Sandia and at multiple KCP (Kansas City Plant) vendors, to produce glass ceramic headers to replace the brazed ceramic headers in the ISL. This achievement will result in significant production costs savings (unit cost and product scrap due to leaking headers).

Bender, Thomas R.

2008-10-10T23:59:59.000Z

309

Demonstration of Motion Transduction Based on Parametrically Coupled Mechanical Resonators  

E-Print Network (OSTI)

Universal sensing the motion of mechanical resonators with high precision and low back-action is of paramount importance in ultra-weak signal detection which plays a fundamental role in modern physics. Here we present a universal scheme that transfer mechanically the motion of the resonator not directly measurable to the one can be precisely measured using mechanical frequency conversion. Demonstration of the scheme at room temperature shows that both the motion imprecision and the back-action force are below the intrinsic level of the objective resonator, which agree well with our theoretical prediction. The scheme developed here provides an effective interface between an arbitrary mechanical resonator and a high quantum efficient displacement sensor, and is expected to find extensive applications in high-demanding mechanical-based force measurements.

Pu Huang; Pengfei Wang; Jingwei Zhou; Zixiang Wang; Chenyong Ju; Zimeng Wang; Yang Shen; Changkui Duan; Jiangfeng Du

2013-05-11T23:59:59.000Z

310

Fundamental mechanisms in flue gas conditioning  

Science Conference Proceedings (OSTI)

This project is divided into four tasks. The Management Plan was developed in task 1. Task 2, Evaluation of Mechanisms in FGD Sorbent and Ash Interactions, focuses on the characteristics of binary mixtures of these distinct powders. Task 3, Evaluation of Mechanisms in Conditioning Agents and Ash, is designed to examine the effects of various conditioning agents on fine ash particles to determine the mechanisms by which these agents alter the physical properties of the ash. Tasks 2 and 3 began with an extensive literature search and the assembly of existing theories. This phase of the project is now complete. During the past quarter, initial preparations of laboratory equipment for laboratory testing have been made. A plan for initial laboratory tests has been submitted to the Project Manager for review. Laboratory testing will commence once these laboratory plans have been formally approved. The results of the work performed under task 2 and 3 will be included in a Flue Gas Conditioning Model that will be issued under task 4. The Final Report for the project will also be prepared under task 4.

Snyder, T.R.; Robinson, M.S.; Bush, P.V.

1992-04-27T23:59:59.000Z

311

Fundamental mechanisms in flue gas conditioning  

Science Conference Proceedings (OSTI)

This project is divided into four tasks. Task 1 is the Development of a Management Plan. Task 2, Evaluation of Mechanisms in FGD Sorbent and Ash Interactions, focuses on the characteristics of binary mixtures of these distinct powders. Task 3, Evaluation of Mechanisms in Conditioning Agents and Ash, is designed to examine the effects of various conditioning agents on fine ash particles to determine the mechanisms by which these agents alter the physical properties of the ash. Tasks 2 and 3 began with an extensive literature search and the assembly of existing theories. The results of the work performed under Tasks 2 and 3 will be included in a Flue Gas Conditioning Model that will be issued under Task 4. The Final Report for the project will also be prepared under Task 4. This quarterly report covers four months in order to synchronize the reporting periods for this project with US Government quarters. Work performed on the project during the past quarter consisted almost entirely of the review of literature pertaining to the objectives of Tasks 2 and 3. The primary results of that review are discussed at length in Topical Reports 1 and 2, submitted January 9, 1992. As a consequence of the work described in the topical reports, several of the project's Measures of Success that were described in the first quarterly report have been achieved. This quarterly report will discuss these achievements.

Snyder, T.R.

1992-01-23T23:59:59.000Z

312

Underhood Thermal Management [Heat Transfer and Fluid Mechanics] - Nuclear  

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

Underhood Thermal Underhood Thermal Management Capabilities Engineering Computation and Design Engineering and Structural Mechanics Systems/Component Design, Engineering and Drafting Heat Transfer and Fluid Mechanics Overview Thermal Hydraulic Optimization of Nuclear Systems Underhood Thermal Management Combustion Simulations Advanced Model and Methodology Development Multi-physics Reactor Performance and Safety Simulations Other Capabilities Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE on Flickr Heat Transfer and Fluid Mechanics Bookmark and Share Underhood Thermal Management Hybrid Vehicle Underhood Thermal Analysis Hybrid Vehicle Underhood Thermal Analysis. Click on image to view larger image. In addition to nuclear system applications, the section applies its

313

A multiscale Molecular Dynamics approach to Contact Mechanics  

E-Print Network (OSTI)

The friction and adhesion between elastic bodies are strongly influenced by the roughness of the surfaces in contact. Here we develop a multiscale molecular dynamics approach to contact mechanics, which can be used also when the surfaces have roughness on many different length-scales, e.g., for self affine fractal surfaces. As an illustration we consider the contact between randomly rough surfaces, and show that the contact area varies linearly with the load for small load. We also analyze the contact morphology and the pressure distribution at different magnification, both with and without adhesion. The calculations are compared with analytical contact mechanics models based on continuum mechanics.

C. Yang; U. Tartaglino; B. N. J. Persson

2005-08-10T23:59:59.000Z

314

Lunar exploration rover program developments  

DOE Green Energy (OSTI)

The Robotic All Terrain Lunar Exploration Rover (RATLER) design concept began at Sandia National Laboratories in late 1991 with a series of small, proof-of-principle, working scale models. The models proved the viability of the concept for high mobility through mechanical simplicity, and eventually received internal funding at Sandia National Laboratories for full scale, proof-of-concept prototype development. Whereas the proof-of-principle models demonstrated the mechanical design`s capabilities for mobility, the full scale proof-of-concept design currently under development is intended to support field operations for experiments in telerobotics, autonomous robotic operations, telerobotic field geology, and advanced man-machine interface concepts. The development program`s current status is described, including an outline of the program`s work over the past year, recent accomplishments, and plans for follow-on development work.

Klarer, P.R.

1993-09-01T23:59:59.000Z

315

Reaction mechanisms of pair transfer  

E-Print Network (OSTI)

The mechanisms of nuclear transfer reactions are described for the transfer of two nucleons from one nucleus to another. Two-nucleon overlap functions are defined in various coordinate systems, and their transformation coefficients given between coordinate systems. Post and prior couplings are defined for sequential transfer mechanisms, and it is demonstrated that the combination of `prior-post' couplings avoids non-orthogonality terms, but does not avoid couplings that do not have good zero-range approximations. The simultaneous and sequential mechanisms are demonstrated for the $^{124}$Sn(p,t)$^{122}$Sn reaction at 25 MeV using shell-model overlap functions. The interference between the various simultaneous and sequential amplitudes is shown.

Ian J. Thompson

2012-04-13T23:59:59.000Z

316

Majorana Electroformed Copper Mechanical Analysis  

SciTech Connect

The MAJORANA DEMONSTRATOR is a large array of ultra-low background high-purity germanium detectors, enriched in 76Ge, designed to search for zero-neutrino double-beta decay. The DEMONSTRATOR will utilize ultra high purity electroformed copper for a variety of detector components and shielding. A preliminary mechanical evaluation was performed on the Majorana prototype electroformed copper material. Several samples were removed from a variety of positions on the mandrel. Tensile testing, optical metallography, scanning electron microscopy, and hardness testing were conducted to evaluate mechanical response. Analyses carried out on the Majorana prototype copper to this point show consistent mechanical response from a variety of test locations. Evaluation shows the copper meets or exceeds the design specifications.

Overman, Nicole R.; Overman, Cory T.; Kafentzis, Tyler A.; Edwards, Danny J.; Hoppe, Eric W.

2012-04-30T23:59:59.000Z

317

Does the Higgs Mechanism Exist?  

E-Print Network (OSTI)

This paper explores the argument structure of the concept of spontaneous symmetry breaking in the electroweak gauge theory of the Standard Model: the so-called Higgs mechanism. As commonly understood, the Higgs argument is designed to introduce the masses of the gauge bosons by a spontaneous breaking of the gauge symmetry of an additional field, the Higgs field. The technical derivation of the Higgs mechanism, however, consists in a mere re-shuffling of degrees of freedom by transforming the Higgs Lagrangian in a gauge-invariant manner. This already raises serious doubts about the adequacy of the entire manoeuvre. It will be shown that no straightforward ontic interpretation of the Higgs mechanism is tenable since gauge transformations possess no real instantiations. In addition, the explanatory value of the Higgs argument will be critically examined.

Holger Lyre

2008-06-08T23:59:59.000Z

318

KTH Mechanics SE-100 44 Stockholm, Sweden  

E-Print Network (OSTI)

KTH Mechanics SE-100 44 Stockholm, Sweden Activity Report 2009 Contents 1. Introduction 2 a short overview of the structure and activities at the depart- ment of Mechanics, KTH during the year courses in mechanics, fluid mechanics and structural mechanics given for students and programmes from

Haviland, David

319

Development of magnetic nanoactuator systems  

Science Conference Proceedings (OSTI)

This paper presents the development of mechanically active arrays, which consist of free-standing Ti beam cantilevers with an integrated NiFe cube with critical dimensions of 100nm allowing for control by an external magnetic field gradient. A process ... Keywords: Ferromagnetic nanoactuator, Nano cantilever, NiFe sputtering

J. Hartbaum; P. Jakobs; H. Leiste; M. Kohl

2011-08-01T23:59:59.000Z

320

Development Mining  

E-Print Network (OSTI)

This report, twenty-eighth of an annual series, describes mineral, oil and gas, and geothermal activities and accomplishments in Nevada in 2006: production statistics, exploration and development including drilling for petroleum and geothermal resources, discoveries of orebodies, new mines opened, and expansion and other activities of existing mines. Statistics of known gold and silver deposits, and directories of mines

Mark Alden; Stavros Anthony; Cedric Crear; Thalia M. Dondero; Dorothy Sewell Gallagher; Jason Geddes; Ron Knecht; James D. Leavitt; Howard Rosenberg; Jack L. Schofield; Steve Sisolak; James E. Rogers; Milton D. Glick; Jeffrey Thompson; Interim Dean; James V. Taranik

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "development mechanism cdm" 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

Process Developments  

Science Conference Proceedings (OSTI)

...Although melt loss had become the major cost factor in ingot production, it was the soaring cost of energy during the 1973 energy crisis that triggered the search for more-efficient remelt processes. This effort also sought to develop process that were less labor intensive and more...

322

Mechanical model for ductility loss  

Science Conference Proceedings (OSTI)

A mechanical model was constructed to probe into the mechanism of ductility loss. Fracture criterion based on critical localized deformation was undertaken. Two microstructure variables were considered in the model. Namely, the strength ratio of grain boundary affected area to the matrix, ..cap omega.., and the linear fraction, x, of grain boundary affected area. A parametrical study was carried out. The study shows that the ductility is very sensitive to those microstructure parameters. The functional dependence of ductility to temperature as well as strain-rate, suggested by the model, is demonstrated to be consistent with the observation.

Hu, W.L.

1980-02-11T23:59:59.000Z

323

Stock Mechanics: a classical approach  

E-Print Network (OSTI)

New theoretical approaches about forecasting stock markets are proposed. A mathematization of the stock market in terms of arithmetical relations is given, where some simple (non-differential, non-fractal) expressions are also suggested as general stock price formuli in closed forms which are able to generate a variety of possible price movements in time. A kind of mechanics is submitted to cover the price movements in terms of classical concepts. Where utilizing stock mechanics to grow the portfolios in real markets is also proven.

Tuncay, C

2005-01-01T23:59:59.000Z

324

The Importance of the Entropy Inequality on Numerical Simulations Using Reduced Methane-air Reaction Mechanisms  

E-Print Network (OSTI)

Many reaction mechanisms have been developed over the past few decades to predict flame characteristics. A detailed reaction mechanism can predict flame characteristics well, but at a high computational cost. The reason for reducing reaction mechanisms is to reduce the computational time needed to simulate a problem. The focus of this work is on the validity of reduced methane-air combustion mechanisms, particularly pertaining to satisfying the entropy inequality. While much of this work involves a two-step reaction mechanism developed by Dr. Charles Westbrook and Dr. Frederick Dryer, some consideration is given to the four-step and three-step mechanisms of Dr. Norbert Peters. These mechanisms are used to simulate the Flame A experiment from Sandia National Laboratories. The two-step mechanism of Westbrook and Dryer is found to generate results that violate the entropy inequality. Modifications are made to the two-step mechanism simulation in an effort to reduce these violations. Two new mechanisms, Mech 1 and Mech 2, are developed from the original two-step reaction mechanism by modifying the empirical data constants in the Arrhenius reaction form. The reaction exponents are set to the stoichiometric coefficients of the reaction, and the concentrations computed from a one-dimensional flame simulation are matched by changing the Arrhenius parameters. The new mechanisms match experimental data more closely than the original two-step mechanism and result in a significant reduction in entropy inequality violations. The solution from Mech 1 had only 9 cells that violated the entropy inequality, while the original two-step mechanism of Westbrook and Dryer had 22,016 cells that violated the entropy inequality. The solution from Mech 2 did not have entropy inequality violations. The method used herein for developing the new mechanisms can be applied to more complex reaction mechanisms.

Jones, Nathan

2012-08-01T23:59:59.000Z

325

Energy Dense, Lighweight, Durable, Systems for Storage and Delivery of Hydrogen  

DOE Green Energy (OSTI)

The Continuum Damage Mechanics (CDM) approach was applied for fault-tolerant design and efficient maintenance of lightweight automotive structures made of composite materials. Potential effects of damage initiation and accumulation are formulated for various design configurations, with emphasis on lightweight fiber-reinforced composites. The CDM model considers damage associated with plasticity and fatigue.

Jacky Pruez; Samir Shoukry; Gergis William; Thomas Evans; Hermann Alcazar

2008-12-31T23:59:59.000Z

326

221B Lecture Notes Relativistic Quantum Mechanics  

E-Print Network (OSTI)

221B Lecture Notes Relativistic Quantum Mechanics 1 Need for Relativistic Quantum Mechanics We, similarly to the Newton's equation of motion in mechanics. The initial condtions to solve the Newton

Murayama, Hitoshi

327

Mathematics 658 Nonlinear Dynamics and Mechanics  

E-Print Network (OSTI)

Mathematics 658 Nonlinear Dynamics and Mechanics Instructor: Anthony M. Bloch. Office: 4842 East differential equations and dynamical systems, with applications to various mechanical and physical systems, nonlinear stability theory, Lagrangian and Hamiltonian mechanics, integrable systems, reduction

Bloch, Anthony

328

Statistical mechanics of a cat's cradle  

E-Print Network (OSTI)

cells. In our view, cell mechanics remains at an early stagefor physics Statistical mechanics of a cats cradle Tongyemodel [2, 3] of cell mechanics [7], but here we limit

Shen, Tongye; Wolynes, Peter G

2006-01-01T23:59:59.000Z

329

MECHANICS AND NONLINEAR CONTROL: MAKING UNDERWATER VEHICLES  

E-Print Network (OSTI)

MECHANICS AND NONLINEAR CONTROL: MAKING UNDERWATER VEHICLES RIDE AND GLIDE Naomi Ehrich Leonard \\Lambda \\Lambda Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, NJ 08544 naomi@princeton.edu Abstract: Methods from geometric mechanics and dynamical systems theory make

Leonard, Naomi

330

221B Lecture Notes Relativistic Quantum Mechanics  

E-Print Network (OSTI)

221B Lecture Notes Relativistic Quantum Mechanics 1 Need for Relativistic Quantum Mechanics We's equation of motion in mechanics. The initial condtions to solve the Newton's equation of motion

Murayama, Hitoshi

331

Xiangchun Xuan Department of Mechanical  

E-Print Network (OSTI)

­liquid interface [13, 14]. Therefore, pumps, valves, and other mechanical moving parts are eliminated in electro April 20, 2007 Revised May 21, 2007 Accepted May 21, 2007 Review Joule heating in electrokinetic flow Joule heating in electrokinetic flow, which is known to cause temperature variations in liquids and draw

Xuan, Xiangchun "Schwann"

332

Mechanical scriber for semiconductor devices  

DOE Patents (OSTI)

A mechanical scriber using a scribing tip, such as a diamond, provides controlled scriber forces with a spring-loaded compound lever arrangement. The scribing force and range of scribing depth are adjusted by a pair of adjustable micrometer heads. A semiconductor device, such as a multilayer solar cell, can be formed into scribed strips at each layer. 5 figs.

Lin, P.T.

1985-03-05T23:59:59.000Z

333

Propagators in Nonrelativistic Quantum Mechanics  

Science Conference Proceedings (OSTI)

A discussion of propagators (Green's functions) and methods for calculating them for the simplest systems in nonrelativistic quantum mechanics is given from several points of view. The relevance of such techniques to partition function calculations is pointed out. Finally

Laurent A. Beauregard

1966-01-01T23:59:59.000Z

334

Mechanical and Hydraulic Press Brakes  

Science Conference Proceedings (OSTI)

...drives, with mechanical linkages from motor to flywheel to clutch to gears to crankshaft to crank arm to ram (Fig. 4). They all have one thing in common: a crankshaft action that converts rotary motion into straight, reciprocating motion (Fig. 5). During a stroke cycle, the crank arm drives the ram down...

335

Battery Vent Mechanism And Method  

DOE Patents (OSTI)

Disclosed herein is a venting mechanism for a battery. The venting mechanism includes a battery vent structure which is located on the battery cover and may be integrally formed therewith. The venting mechanism includes an opening extending through the battery cover such that the opening communicates with a plurality of battery cells located within the battery case. The venting mechanism also includes a vent manifold which attaches to the battery vent structure. The vent manifold includes a first opening which communicates with the battery vent structure opening and second and third openings which allow the vent manifold to be connected to two separate conduits. In this manner, a plurality of batteries may be interconnected for venting purposes, thus eliminating the need to provide separate vent lines for each battery. The vent manifold may be attached to the battery vent structure by a spin-welding technique. To facilitate this technique, the vent manifold may be provided with a flange portion which fits into a corresponding groove portion on the battery vent structure. The vent manifold includes an internal chamber which is large enough to completely house a conventional battery flame arrester and overpressure safety valve. In this manner, the vent manifold, when installed, lessens the likelihood of tampering with the flame arrester and safety valve.

Ching, Larry K. W. (Littleton, CO)

2000-02-15T23:59:59.000Z

336

SCIENCE CHINA Physics, Mechanics & Astronomy  

E-Print Network (OSTI)

SCIENCE CHINA Physics, Mechanics & Astronomy © Science China Press and Springer-Verlag Berlin for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China. Sci China-Phys Mech Astron, 2013, 56: 207221, doi: 10.1007/s11433-012-4970-8 1 Introduction

Zhang, Guangyu

337

Universal mechanism of aging uncovered?  

Science Conference Proceedings (OSTI)

Researchers at Harvard Medical School (HMS: Boston, USA) have discovered that DNA damage decreases a cells ability to regulate which genes are turned on and off in particular settings. This mechanism, which applies both to fungi and to humans, might repre

338

Mechanical scriber for semiconductor devices  

DOE Patents (OSTI)

A mechanical scriber using a scribing tip, such as a diamond, provides controlled scriber forces with a spring-loaded compound lever arrangement. The scribing force and range of scribing depth are adjusted by a pair of adjustable micrometer heads. A semiconductor device, such as a multilayer solar cell, can be formed into scribed strips at each layer.

Lin, Peter T. (East Brunswick, NJ)

1985-01-01T23:59:59.000Z

339

Giant Protease TPP II's Structure, Mechanism Uncovered  

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

Giant Protease TPP II's Structure, Mechanism Uncovered Giant Protease TPP II's Structure, Mechanism Uncovered Print Wednesday, 23 February 2011 00:00 Tripeptidyl peptidase II (TPP...

340

A Fundamental Mechanism in Anisotropic Nanocrystal Growth ...  

Science Conference Proceedings (OSTI)

In order to achieve this goal, it is necessary to understand the build block ( nanocrystal) growth mechanism. The oriented attachment (OA) mechanism originally...

Note: This page contains sample records for the topic "development mechanism cdm" 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

Determination of the recovery stresses developed by shape memory alloys  

SciTech Connect

A simple relationship has been developed between recovery stresses, temperature, and strain, to explain the mechanical shape memory effect in some alloys which undergo thermoelastic martensitic transformation. (GHT)

Mohamed, H.A.

1978-03-01T23:59:59.000Z

342

China's Approaches to Financing Sustainable Development: Policies, Practices, and Issues  

E-Print Network (OSTI)

composition of Chinas green energy investment portfolio.financing mechanisms for green energy development in China.Composition of Chinas green energy investment portfolio

Shen, Bo

2013-01-01T23:59:59.000Z

343

Development and Characterization of ATI 216Cb Alloy, a Mo ...  

Science Conference Proceedings (OSTI)

... flexible connectors and residential chimney liners. This presentation will review the development of ATI 216Cb alloy and present results of mechanical testing,...

344

Exact cosmological solution of a Scalar-Tensor Gravity theory compatible with the $?CDM$ model  

E-Print Network (OSTI)

We consider the massive scalar-tensor theory in the Jordan frame $F(\\Phi) =K^{2}\\Phi^2$ and $U(\\Phi) =(1/2)m^{2}\\Phi^2$, where $F(\\Phi)$ corresponds to a constant Brans-Dicke parameter $\\omega_{BD}=1/4K^2$. The constraint of the Solar System experiments is $K^2energy is not constant: it presents a very slight crossing of the phantom divide line $w=-1$ in the neighborhood of $z=0$ and becomes very slightly positive at high redshifts.

B. Boisseau

2010-11-12T23:59:59.000Z

345

MERGERS IN {Lambda}CDM: UNCERTAINTIES IN THEORETICAL PREDICTIONS AND INTERPRETATIONS OF THE MERGER RATE  

Science Conference Proceedings (OSTI)

Different theoretical methodologies lead to order-of-magnitude variations in predicted galaxy-galaxy merger rates. We examine how this arises and quantify the dominant uncertainties. Modeling of dark matter and galaxy inspiral/merger times contribute factor of {approx}2 uncertainties. Different estimates of the halo-halo merger rate, the subhalo 'destruction' rate, and the halo merger rate with some dynamical friction time delay for galaxy-galaxy mergers, agree to within this factor of {approx}2, provided proper care is taken to define mergers consistently. There are some caveats: if halo/subhalo masses are not appropriately defined the major-merger rate can be dramatically suppressed, and in models with 'orphan' galaxies and under-resolved subhalos the merger timescale can be severely over-estimated. The dominant differences in galaxy-galaxy merger rates between models owe to the treatment of the baryonic physics. Cosmological hydrodynamic simulations without strong feedback and some older semi-analytic models (SAMs), with known discrepancies in mass functions, can be biased by large factors ({approx}5) in predicted merger rates. However, provided that models yield a reasonable match to the total galaxy mass function, the differences in properties of central galaxies are sufficiently small to alone contribute small (factor of {approx}1.5) additional systematics to merger rate predictions. But variations in the baryonic physics of satellite galaxies in models can also have a dramatic effect on merger rates. The well-known problem of satellite 'over-quenching' in most current SAMs-whereby SAM satellite populations are too efficiently stripped of their gas-could lead to order-of-magnitude under-estimates of merger rates for low-mass, gas-rich galaxies. Models in which the masses of satellites are fixed by observations (or SAMs adjusted to resolve this 'over-quenching') tend to predict higher merger rates, but with factor of {approx}2 uncertainties stemming from the uncertainty in those observations. The choice of mass used to define 'major' and 'minor' mergers also matters: stellar-stellar major mergers can be more or less abundant than halo-halo major mergers by an order of magnitude. At low masses, most true major mergers (mass ratio defined in terms of their baryonic or dynamical mass) will appear to be minor mergers in their stellar mass ratio-observations and models using just stellar criteria could underestimate major-merger rates by factors of {approx}3-5. We discuss the uncertainties in relating any merger rate to spheroid formation (in observations or theory): in order to achieve better than factor of {approx}3 accuracy, it is necessary to account for the distribution of merger orbital parameters, gas fractions, and the full efficiency of merger-induced effects as a function of mass ratio.

Hopkins, Philip F.; Bundy, Kevin; Wetzel, Andrew; Ma, Chung-Pei [Department of Astronomy, University of California, Berkeley, CA 94720 (United States); Croton, Darren [Centre for Astrophysics and Supercomputing, Swinburne University of Technology, P.O. Box 218, Hawthorn, VIC 3122 (Australia); Khochfar, Sadegh; Hernquist, Lars; Genel, Shy [Max Planck Institut fuer Extraterrestrische Physik, Giessenbachstr., D-85748, Garching (Germany); Van den Bosch, Frank [Department of Physics and Astronomy, University of Utah, 115 South 1400 East, Salt Lake City, UT 84112-0830 (United States); Somerville, Rachel S. [Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States); Keres, Dusan [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Stewart, Kyle [NASA Postdoctoral Program Fellow, Jet Propulsion Laboratory, Pasadena, CA 91109 (United States); Younger, Joshua D. [Institute for Advanced Study, Einstein Drive, Princeton, NJ 08540 (United States)

2010-12-01T23:59:59.000Z

346

Technology transfer by CDM projects: a comparison of Brazil, China, India and Mexico  

E-Print Network (OSTI)

and biogas recovery in breeding farms and landfills (see table 3). Renewable energy projects mostly consist is biogas recovery. They generally entail technology transfer. In particular, projects in breeding farms mitigating biogas resulting from the decomposition process of animal effluents present interesting channels

Paris-Sud XI, Université de

347

Geothermal technology development program. Annual progress report, October 1981-September 1982  

DOE Green Energy (OSTI)

The status of ongoing Research and Development (R and D) within the Geothermal Technology Development Program is described. The program emphasizes research in rock penetration mechanics, fluid technology, borehole mechanics, diagnostics technology, and permeability enhancement.

Kelsey, J.R. (ed.)

1983-08-01T23:59:59.000Z

348

Aid for Trade and Climate Change Financing Mechanisms | Open Energy  

Open Energy Info (EERE)

Aid for Trade and Climate Change Financing Mechanisms Aid for Trade and Climate Change Financing Mechanisms Jump to: navigation, search Tool Summary Name: Aid for Trade and Climate Change Financing Mechanisms: Best Practices and Lessons Learned for LDCs and SVEs in Africa Agency/Company /Organization: International Centre for Trade and Sustainable Development Sector: Energy, Land Topics: Finance, Implementation Resource Type: Publications, Lessons learned/best practices Website: ictsd.org/downloads/2010/03/aft-and-climate-change-financing-mechanism UN Region: "Sub-Saharan Africa" is not in the list of possible values (Eastern Africa, Middle Africa, Northern Africa, Southern Africa, Western Africa, Caribbean, Central America, South America, Northern America, Central Asia, Eastern Asia, Southern Asia, South-Eastern Asia, Western Asia, Eastern Europe, Northern Europe, Southern Europe, Western Europe, Australia and New Zealand, Melanesia, Micronesia, Polynesia, Latin America and the Caribbean) for this property.

349

Geothermal technology development at Sandia  

DOE Green Energy (OSTI)

Geothermal technology development at Sandia consists of work in two major project areas - Hard Rock Penetration and Magma Energy Extraction. The Hard Rock Penetration Program is directed at reducing drilling costs for geothermal wells. Current activities are focused in three areas: borehole mechanics, rock penetration mechanics, and industry cost-shared research. The Magma Energy Extraction Program is investigating the engineering feasibility of utilizing crustal magma bodies as a source of energy. Work is divided into four major areas: geophysics, geochemistry/materials, drilling, and energy extraction.

Dunn, J.C.

1987-04-01T23:59:59.000Z

350

HEAVY AND THERMAL OIL RECOVERY PRODUCTION MECHANISMS  

SciTech Connect

The Stanford University Petroleum Research Institute (SUPRI-A) studies oil recovery mechanisms relevant to thermal and heavy-oil production. The scope of work is relevant across near-, mid-, and long-term time frames. In August of 2000 we received funding from the U. S. DOE under Award No. DE-FC26-00BC15311 that completed December 1, 2003. The project was cost shared with industry. Heavy oil (10 to 20{sup o} API) is an underutilized energy resource of tremendous potential. Heavy oils are much more viscous than conventional oils. As a result, they are difficult to produce with conventional recovery methods. Heating reduces oil viscosity dramatically. Hence, thermal recovery is especially important because adding heat, usually via steam injection generally improves displacement efficiency. The objectives of this work were to improve our understanding of the production mechanisms of heavy oil under both primary and enhanced modes of operation. The research described spanned a spectrum of topics related to heavy and thermal oil recovery and is categorized into: (1) multiphase flow and rock properties, (2) hot fluid injection, (3) improved primary heavy-oil recovery, (4) in-situ combustion, and (5) reservoir definition. Technology transfer efforts and industrial outreach were also important to project effort. The research tools and techniques used were quite varied. In the area of experiments, we developed a novel apparatus that improved imaging with X-ray computed tomography (CT) and high-pressure micromodels etched with realistic sandstone roughness and pore networks that improved visualization of oil-recovery mechanisms. The CT-compatible apparatus was invaluable for investigating primary heavy-oil production, multiphase flow in fractured and unfractured media, as well as imbibition. Imbibition and the flow of condensed steam are important parts of the thermal recovery process. The high-pressure micromodels were used to develop a conceptual and mechanistic picture of primary heavy-oil production by solution gas drive. They allowed for direct visualization of gas bubble formation, bubble growth, and oil displacement. Companion experiments in representative sands and sandstones were also conducted to understand the mechanisms of cold production. The evolution of in-situ gas and oil saturation was monitored with CT scanning and pressure drop data. These experiments highlighted the importance of depletion rate, overburden pressure, and oil-phase chemistry on the cold production process. From the information provided by the experiments, a conceptual and numerical model was formulated and validated for the heavy-oil solution gas drive recovery process. Also in the area of mechanisms, steamdrive for fractured, low permeability porous media was studied. Field tests have shown that heat injected in the form of steam is effective at unlocking oil from such reservoir media. The research reported here elucidated how the basic mechanisms differ from conventional steamdrive and how these differences are used to an advantage. Using simulations of single and multiple matrix blocks that account for details of heat transfer, capillarity, and fluid exchange between matrix and fracture, the importance of factors such as permeability contrast between matrix and fracture and oil composition were quantified. Experimentally, we examined the speed and extent to which steam injection alters the permeability and wettability of low permeability, siliceous rocks during thermal recovery. Rock dissolution tends to increase permeability moderately aiding in heat delivery, whereas downstream the cooled fluid deposits silica reducing permeability. Permeability reduction is not catastrophic. With respect to wettability, heat shifts rock wettability toward more water wet conditions. This effect is beneficial for the production of heavy and medium gravity oils as it improves displacement efficiency. A combination of analytical and numerical studies was used to examine the efficiency of reservoir heating using nonconventional wells such as horizontal and multi

Anthony R. Kovscek; Louis M. Castanier

2003-12-31T23:59:59.000Z

351

Mechanics of Interfacial Composite Materials  

E-Print Network (OSTI)

Recent experiments and simulations have demonstrated that particle-covered interfaces can exist in stable non-spherical shapes as a result of the steric jamming of the interfacially trapped particles, which confers the interface with solid-like properties. We provide an experimental and theoretical characterization of the mechanical properties of these armored objects, with attention given to the two-dimensional granular state of the interface. Small inhomogeneous stresses produce a plastic response while homogeneous stresses produce a weak elastic response. Shear-driven particle-scale rearrangements explain the basic threshold needed to obtain the near-perfect plastic deformation that is observed. Furthermore, the inhomogeneous stress state of the interface is exhibited experimentally by using surfactants to destabilize the particles on the surface. Since the interfacially trapped particles retain their individual characteristics, armored interfaces can be recognized as a kind of composite material with distinct chemical, structural and mechanical properties.

Anand Bala Subramaniam; Manouk Abkarian; L. Mahadevan; Howard A. Stone

2006-05-25T23:59:59.000Z

352

Kinesin's backsteps under mechanical load  

E-Print Network (OSTI)

Kinesins move processively toward the plus end of microtubules by hydrolyzing ATP for each step. From an enzymatic perspective, the mechanism of mechanical motion coupled to the nucleotide chemistry is often well explained using a single-loop cyclic reaction. However, several difficulties arise in interpreting kinesin's backstepping within this framework, especially when external forces oppose the motion of kinesin. We review evidence, such as an ATP-independent stall force and a slower cycle time for backsteps, that has emerged to challenge the idea that kinesin backstepping is due to ATP synthesis, i.e., the reverse cycle of kinesin's forward-stepping chemomechanics. Supplementing the conventional single-loop chemomechanics with routes for ATP-hydrolyzing backward steps and nucleotide-free steps, especially under load, gives a better physical interpretation of the experimental data on backsteps.

Changbong Hyeon; Stefan Klumpp; Jos N. Onuchic

2009-04-18T23:59:59.000Z

353

Chemically assisted mechanical refrigeration process  

DOE Patents (OSTI)

There is provided a chemically assisted mechanical refrigeration process including the steps of: mechanically compressing a refrigerant stream which includes vaporized refrigerant; contacting the refrigerant with a solvent in a mixer at a pressure sufficient to promote substantial dissolving of the refrigerant in the solvent in the mixer to form a refrigerant-solvent solution while concurrently placing the solution in heat exchange relation with a working medium to transfer energy to the working medium, said refrigerant-solvent solution exhibiting a negative deviation from Raoult's Law; reducing the pressure over the refrigerant-solvent solution in an evaporator to allow the refrigerant to vaporize and substantially separate from the solvent while concurrently placing the evolving refrigerant-solvent solution in heat exchange relation with a working medium to remove energy from the working medium to thereby form a refrigerant stream and a solvent stream; and passing the solvent and refrigerant stream from the evaporator. 5 figs.

Vobach, A.R.

1987-11-24T23:59:59.000Z

354

Bohmian Mechanics and Quantum Information  

E-Print Network (OSTI)

Many recent results suggest that quantum theory is about information, and that quantum theory is best understood as arising from principles concerning information and information processing. At the same time, by far the simplest version of quantum mechanics, Bohmian mechanics, is concerned, not with information but with the behavior of an objective microscopic reality given by particles and their positions. What I would like to do here is to examine whether, and to what extent, the importance of information, observation, and the like in quantum theory can be understood from a Bohmian perspective. I would like to explore the hypothesis that the idea that information plays a special role in physics naturally emerges in a Bohmian universe.

Sheldon Goldstein

2009-07-14T23:59:59.000Z

355

Chemically assisted mechanical refrigeration process  

DOE Patents (OSTI)

There is provided a chemically assisted mechanical refrigeration process including the steps of: mechanically compressing a refrigerant stream which includes vaporized refrigerant; contacting the refrigerant with a solvent in a mixer (11) at a pressure sufficient to promote substantial dissolving of the refrigerant in the solvent in the mixer (11) to form a refrigerant-solvent solution while concurrently placing the solution in heat exchange relation with a working medium to transfer energy to the working medium, said refrigerant-solvent solution exhibiting a negative deviation from Raoult's Law; reducing the pressure over the refrigerant-solvent solution in an evaporator (10) to allow the refrigerant to vaporize and substantially separate from the solvent while concurrently placing he evolving refrigerant-solvent solution in heat exchange relation with a working medium to remove energy from the working medium to thereby form a refrigerant stream and a solvent stream; and passing the solvent and refrigerant stream from the evaporator.

Vobach, Arnold R. (6006 Allentown Dr., Spring, TX 77379)

1987-01-01T23:59:59.000Z

356

Chemically assisted mechanical refrigeration process  

DOE Patents (OSTI)

There is provided a chemically assisted mechanical refrigeration process including the steps of: mechanically compressing a refrigerant stream which includes vaporized refrigerant; contacting the refrigerant with a solvent in a mixer (11) at a pressure sufficient to promote substantial dissolving of the refrigerant in the solvent in the mixer (11) to form a refrigerant-solvent solution while concurrently placing the solution in heat exchange relation with a working medium to transfer energy to the working medium, said refrigerant-solvent solution exhibiting a negative deviation from Raoult's Law; reducing the pressure over the refrigerant-solvent solution in an evaporator (10) to allow the refrigerant to vaporize and substantially separate from the solvent while concurrently placing the evolving refrigerant-solvent solution in heat exchange relation with a working medium to remove energy from the working medium to thereby form a refrigerant stream and a solvent stream; and passing the solvent and refrigerant stream from the evaporator.

Vobach, Arnold R. (6006 Allentown Dr., Spring, TX 77389)

1987-01-01T23:59:59.000Z

357

Chemically assisted mechanical refrigeration process  

DOE Patents (OSTI)

There is provided a chemically assisted mechanical refrigeration process including the steps of: mechanically compressing a refrigerant stream which includes vaporized refrigerant; contacting the refrigerant with a solvent in a mixer at a pressure sufficient to promote substantial dissolving of the refrigerant in the solvent in the mixer to form a refrigerant-solvent solution while concurrently placing the solution in heat exchange relation with a working medium to transfer energy to the working medium, said refrigerant-solvent solution exhibiting a negative deviation from Raoult's Law; reducing the pressure over the refrigerant-solvent solution in an evaporator to allow the refrigerant to vaporize and substantially separate from the solvent while concurrently placing the evolving refrigerant-solvent solution in heat exchange relation with a working medium to remove energy from the working medium to thereby form a refrigerant stream and a solvent stream; and passing the solvent and refrigerant stream from the evaporator. 5 figs.

Vobach, A.R.

1987-06-23T23:59:59.000Z

358

The Schwinger mechanism and graphene  

E-Print Network (OSTI)

The Schwinger mechanism, the production of charged particle-antiparticle pairs in a macroscopic external electric field, is derived for 2+1 dimensional theories. The rate of pair production per unit area for four species of massless fermions, with charge $q$, in a constant electric field $E$ is given by $ \\pi^{-2} \\hbar^{-3/2} \\tilde{c}^{-1/2} (q E)^{3/2} $ where $\\tilde{c}$ is the speed of light for the two-dimensional system. To the extent undoped graphene behaves like the quantum field-theoretic vacuum for massless fermions in 2+1 dimensions, the Schwinger mechanism should be testable experimentally. A possible experimental configuration for this is proposed. Effects due to deviations from this idealized picture of graphene are briefly considered. It is argued that with present day samples of graphene, tests of the Schwinger formula may be possible.

Danielle Allor; Thomas D. Cohen; David A. McGady

2007-08-10T23:59:59.000Z

359

Mechanical Engineering Department Technical Review  

Science Conference Proceedings (OSTI)

The Mechanical Engineering Department Technical Review is published to inform readers of various technical activities within the Department, promote exchange of ideas, and give credit to personnel who are achieving the results. The report is presented in two parts: technical achievements and publication abstracts. The first is divided into seven sections, each of which reports on an engineering division and its specific activities related to nuclear tests, nuclear explosives, weapons, energy systems, engineering sciences, magnetic fusion, and materials fabrication.

Carr, R.B.; Denney, R.M. (eds.)

1981-07-01T23:59:59.000Z

360

MECHANICAL PROPERTIES OF ZIRCALOY-2  

DOE Green Energy (OSTI)

>The mechanical and physical properties of Zircaloy-2 were determined as a function of five test variables: temperature, grain size, direction to rolling, hydrgen content, and the presence or absence of a notch. The investigation included studies of the coefficient of thermal expansion, elastic moduius, tensile properties, creep properties, and low-cycle fatigue properties. Approximately 470 specimens from a single ingot were tested in the course of the investigation. (auth)

Mehan, R.L.; Wiesinger, F.W.

1961-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "development mechanism cdm" 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

Scattering Relativity in Quantum Mechanics  

E-Print Network (OSTI)

Transforming from one reference frame to another yields an equivalent physical description. If quantum fields are transformed one way and quantum states transformed a different way then the physics changes. We show how to use the resulting changed physical description to obtain the equations of motion of charged, massive particles in electromagnetic and gravitational fields. The derivation is based entirely on special relativity and quantum mechanics.

Richard Shurtleff

2011-08-09T23:59:59.000Z

362

Mechanical Engineering Department. Technical review  

Science Conference Proceedings (OSTI)

The Mechanical Engineering Department Technical Review is published to (1) inform the readers of various technical activities within the Department, (2) promote exchange of ideas, and (3) give credit to the personnel who are achieving the results. The report is formatted into two parts: technical achievements and publication abstracts. The first is divided into eight sections, one for each Division in the Department providing the reader with the names of the personnel and the Division accomplishing the work.

Simecka, W.B.; Condouris, R.A.; Talaber, C. (eds.)

1980-01-01T23:59:59.000Z

363

Complex Mechanical Properties of Steel  

E-Print Network (OSTI)

?i friction stress ?y stress necessary to propagate yield ? bias A number of models in the committee CONTENTS ix a crack length a1 reliability constant a2 material fatigue properties constant a3 lubricant constant C material constant ci chemical... for failure to occur. In addition to this, stress concentration, temperature, corro- sion, residual stress and basic mechanical properties influence fatigue failure [10]. 2.1 FATIGUE CRACK GROWTH 5 2.1.1 Fatigue Failure Concepts There are four concepts applied...

Dimitriu, Radu

364

Communication: Quantum mechanics without wavefunctions  

SciTech Connect

We present a self-contained formulation of spin-free non-relativistic quantum mechanics that makes no use of wavefunctions or complex amplitudes of any kind. Quantum states are represented as ensembles of real-valued quantum trajectories, obtained by extremizing an action and satisfying energy conservation. The theory applies for arbitrary configuration spaces and system dimensionalities. Various beneficial ramifications--theoretical, computational, and interpretational--are discussed.

Schiff, Jeremy [Department of Mathematics, Bar-Ilan University, Ramat Gan 52900 (Israel); Poirier, Bill [Department of Chemistry and Biochemistry, Texas Tech University, Box 41061, Lubbock, Texas 79409-1061 (United States) and Department of Physics, Texas Tech University, Box 41051, Lubbock, Texas 79409-1051 (United States)

2012-01-21T23:59:59.000Z

365

Mechanical Devices Readiness FY04.0402.3  

Science Conference Proceedings (OSTI)

This project funded production process and tooling improvements to meet and sustain rate production for the W76-1 mechanism assemblies. Techniques were developed to allow evaluation and disposition of sealed stronglinks that resulted in prevention of the scrapping of numerous stronglinks and firesets. Improved processes and tooling allowed D-Test rates to be reduced in favor of E-Test, thus saving millions of dollars over the life of the program. Future system mechanisms will likely be smaller with tighter toleranced parts that will require improved inspection equipment and techniques. During the latter phase of this project, a method of improving inspection was developed that will have benefits for existing and future system mechanical assemblies.

John M. Fitzgerald

2008-10-21T23:59:59.000Z

366

Combustion Simulations [Heat Transfer and Fluid Mechanics] - Nuclear  

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

Combustion Simulations Combustion Simulations Capabilities Engineering Computation and Design Engineering and Structural Mechanics Systems/Component Design, Engineering and Drafting Heat Transfer and Fluid Mechanics Overview Thermal Hydraulic Optimization of Nuclear Systems Underhood Thermal Management Combustion Simulations Advanced Model and Methodology Development Multi-physics Reactor Performance and Safety Simulations Other Capabilities Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE on Flickr Heat Transfer and Fluid Mechanics Bookmark and Share Combustion Simulations Density Distribution of Spray in Near-Injector Region Density Distribution of Spray in Near-Injector Region. Click on image to view larger image. Development of computer models based on Front-Tracking and

367

MATERIALS DEGRADATION ANALYSIS AND DEVELOPMENT TO ENABLE ULTRA LOW COST, WEB-PROCESSED WHITE P-OLED FOR SSL  

SciTech Connect

Progress over Phase II of DE-FG02-07ER86293 'Materials Degradation Analysis and Development to Enable Ultra Low Cost, Web-Processed White P-OLED for SSL' was initially rapid in terms of device performance improvements. We exceeded our device luminance lifetime goals for printed flexible white OLEDs as laid out in our project proposal. Our Phase II performance target was to demonstrate >1500 hours luminance lifetime at 100 Cd/m2 from a printed flexible device. We now have R&D devices well in excess of 8000 hrs lifetime at 100 Cd/m2, tested in air. We also were able to produce devices which met the voltage target of >1500 hours below 15V operation. After completing the initial performance milestones, we went on to focus on color-related degradation issues which were cited as important to commercialization of the technology by our manufacturing partners. We also put additional focus on cathode work as the active material development that occurred over the STTR time period required an adaptation of the cathode from the original cathode formulations which were developed based on previous generation active layer materials. We were able to improve compatibility of the cathode with some of the newer generation active layer materials and improve device yield and voltage behavior. An additional objective of the initial Phase II was to further develop the underlying manufacturing technology and real-life product specifications. This is a key requirement that must be met to ensure eventual commercialization of this DOE-funded technology. The link between commercial investment for full commercialization and R&D efforts in OLED solid State Lighting is often a large one. Add-Vision's lower cost, printed OLED manufacturing approach is an attraction, but close engagement with manufacturing partners and addressing customer specifications is a very important link. Manufacturing technology encompasses development of moisture reduction encapsulation technology, improved cost performance, and reductions in operating voltage through thinner and higher uniformity active device layers. We have now installed a pilot encapsulation system at AVI for controlled, high throughput lamination encapsulation of flexible OLEDs in a novel process. Along with this, we have developed, with our materials supply partners, adhesives, barrier films and other encapsulation materials and we are showing total air product lifetimes in the 2-4 years range from a process consistent with our throughput goals of {approx}1M device per month ({approx}30,000 sq. ft. of processed OLEDs). Within the last year of the project, we have been working to introduce the manufacturing improvements made in our LEP deposition and annealing process to our commercial partners. Based on the success of this, a pilot scale-up program was begun. During this process, Add-Vision was acquired by a strategic partner, in no small part, because of the promise of future success of the technology as evidenced by our commercial partners pilot scale-up plans. Overall, the performance, manufacturing and product work in this project has been successful. Additional analysis and device work at LBL has also shown a unique adhesion change with device bias stressing which may result from active layer polymer cross-linking during bias stressing of device. It was shown that even small bias stresses, as a fraction of a full device lifetime stress period, result in measurable chemical change in the device. Further work needs to be conducted to fully understand the chemical nature of this interaction. Elucidation of this effect would enable doped OLED formulation to be engineered to suppress this effect and further extend lifetimes and reduce voltage climb.

DR. DEVIN MACKENZIE

2011-12-13T23:59:59.000Z

368

Nonlinear Hertzian indentation fracture mechanics  

SciTech Connect

Indentation cracking under blunt indenters is analyzed using nonlinear fracture mechanics. The usual assumptions of linear elastic fracture mechanics have been replaced with a nonlinear load vs load-point displacement curve while assuming the material is linear elastic. The load, the load-point displacement, and a function of the crack area have been related to the crack driving force, J, while assuming a cone fracture under the Hertzian sphere. Experimentally, it was found that the load-displacement curve during loading, cracking, and unloading is nonlinear. The crack length is empirically shown to be proportional to the load-point displacement for several indenters. The experimentally measured relations between indenter load, load-point displacement, and crack geometries are then analyzed with mechanical energy balances based on the similitude of crack lengths with load-point displacements. The Hertz hardness that describes the nonlinear load vs load-point displacement relation during cracking is derived on the constant J line in load-displacement space. Finally, well-known experimental expressions that relate load to crack length are shown to be indistinguishable from the load-point displacement analysis reported.

Burns, S.J.; Chia, K.Y. [Univ. of Rochester, NY (United States). Dept. of Mechanical Engineering

1995-09-01T23:59:59.000Z

369

Development of Ultrafine-Grained Ti-6Al-4Fe-0.25Si Alloy Without ...  

Science Conference Proceedings (OSTI)

Data Development for Modeling Heat Treatment of 7075 Aluminum Alloy Components ... Processing and Mechanical Behavior of Unalloyed Plutonium.

370

Instrument Development  

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

Cloud and Aerosol Characterization for Cloud and Aerosol Characterization for the ARM Central Facility: Multiple Remote Sensor Techniques Development K. Sassen Department of Meteorology University of Utah Salt lake City, UT 84112 overcome the poor data-handling capabilities that handi- capped multiple-channellidar studies in the past. The true diversity of transmitted and received polarization states of our system is illustrated at the bottom of Table 1. Note that the first full POL field tests will be made at the upcoming 1991 Project First ISCCP Regional Experiment (FIRE) Intensive Field Observations II campaign, where our unit will be one of severallidars and radars located at a central site serving as the hub for research aircraft operations. The increasingly complex data collected by the POL and other remote sensors using different wave-

371

FARADAYIC Development  

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

FARADAYIC FARADAYIC Development of Electrically Mediated Electrophoretic Deposition for Thermal Barrier Coatings F A R A D A Y T E C H N O L O G Y , IN C . Joseph Kell 1 , Heather McCrabb 1 , Binod Kumar 2 1 Faraday Technology, Inc., Clayton, Ohio, USA 2 University of Dayton Research Institute, Dayton, Ohio, USA Contact: josephkell@faradaytechnology.com; heathermccrabb@faradaytechnology.com Background There is a need for an affordable, non-line-of-sight method of coating complex-shaped turbine engine components with thermal barrier coatings (TBCs) that have controllable thickness distributions and a microstructure that is sufficiently strain-tolerant and will survive in the turbine environment. Typically plasma spray (PS) or electron beam physical vapor deposition (EB-PVD) are used to deposit TBCs Electrophoretic deposition (EPD) is a non-line-of-sight process that is easy to control

372

INDUSTRIAL DEVELOPMENT  

E-Print Network (OSTI)

The views expressed in this paper are solely those of the authors. They do not necessarily represent the views of the World Bank or its member countries and should not be attributed to This paper examines the effect of foreign ownership on value added of firms in sub-Saharan Africa, using firm-level data from the Regional Program on Enterprise Development at the World Bank. The econometric analysis shows that foreign ownership has a significant effect on value added only when it exceeds a majority share. The results for Africa are consistent with the existing literature on foreign investment which argues that majority ownership creates appropriate incentives and provides greater opportunity to raise firm-level value added. 1

Vijaya Ramach; Manju Kedia Shah

1998-01-01T23:59:59.000Z

373

Nozzle development  

DOE Green Energy (OSTI)

The objective of this program has been the development of experimental techniques and data processing procedures to allow for the characterization of multi-phase fuel nozzles using laboratory tests. Test results were to be used to produce a single value coefficient-of-performance that would predict the performance of the fuel nozzles independent of system application. Several different types of fuel nozzles capable of handling multi-phase fuels have been characterized for: (a) fuel flow rate versus delivery pressure, (b) fuel-air ratio throughout the fuel spray or plume and the effective cone angle of the injector, and (c) fuel drop- or particle-size distribution as a function of fluid properties. Fuel nozzles which have been characterized on both single-phase liquids and multi-phase liquid-solid slurries include a variable-film-thickness nozzle, a commercial coal-water slurry (CWS) nozzle, and four diesel injectors of different geometries (tested on single-phase fluids only). Multi-phase mixtures includes CWS with various coal loadings, surfactant concentrations, and stabilizer concentrations, as well as glass-bead water slurries with stabilizing additives. Single-phase fluids included glycerol-water mixtures to vary the viscosity over a range of 1 to 1500 cP, and alcohol-water mixtures to vary the surface tension from about 22 to 73 dyne/cm. In addition, tests were performed to characterize straight-tube gas-solid nozzles using two differences size distributions of glass beads in air. Standardized procedures have been developed for processing measurements of spray drop-size characteristics and the overall cross-section average drop or particle size. 43 refs., 60 figs., 7 tabs.

Dodge, F.T.; Dodge, L.G.; Johnson, J.E.

1989-06-01T23:59:59.000Z

374

Lansce Wire Scanning Diagnostics Device Mechanical Design  

SciTech Connect

The Accelerator Operations & Technology Division at Los Alamos National Laboratory operates a linear particle accelerator which utilizes 110 wire scanning diagnostics devices to gain position and intensity information of the proton beam. In the upcoming LANSCE improvements, 51 of these wire scanners are to be replaced with a new design, up-to-date technology and off-the-shelf components. This document outlines the requirements for the mechanical design of the LANSCE wire scanner and presents the recently developed linac wire scanner prototype. Additionally, this document presents the design modifications that have been implemented into the fabrication and assembly of this first linac wire scanner prototype. Also, this document will present the design for the second, third, and fourth wire scanner prototypes being developed. Prototypes 2 and 3 belong to a different section of the particle accelerator and therefore have slightly different design specifications. Prototype 4 is a modification of a previously used wire scanner in our facility. Lastly, the paper concludes with a plan for future work on the wire scanner development.

Rodriguez Esparza, Sergio [Los Alamos National Laboratory; Batygin, Yuri K. [Los Alamos National Laboratory; Gilpatrick, John D. [Los Alamos National Laboratory; Gruchalla, Michael E. [Los Alamos National Laboratory; Maestas, Alfred J. [Los Alamos National Laboratory; Pillai, Chandra [Los Alamos National Laboratory; Raybun, Joseph L. [Los Alamos National Laboratory; Sattler, F. D. [Los Alamos National Laboratory; Sedillo, James Daniel [Los Alamos National Laboratory; Smith, Brian G. [Los Alamos National Laboratory

2011-01-01T23:59:59.000Z

375

Department of Mechanical Engineering Spring 2012 HVAC Filter Sensor -Global  

E-Print Network (OSTI)

PENNSTATE Department of Mechanical Engineering Spring 2012 HVAC Filter Sensor - Global Overview The purpose of this project is to develop a heating, ventilation, and air conditioning (HVAC) monitoring a residential, forced flow, multi-zone HVAC filter needs to be replaced, and then alerts the users

Demirel, Melik C.

376

Overhead elimination mechanisms in real-time systems  

Science Conference Proceedings (OSTI)

The OEM (Overhead Elimination Mechanism), a scheduler for finding minimal overheads with reduced context switches in real-time systems, was developed using procedural methods. Software produced by these methods has often proven to be inflexible and difficult ... Keywords: Real-time scheduling, context switches, object-oriented, procedural, rate monotonic algorithm

Ilhyun Lee; Haesun K. Lee; Narayan Debnath

2006-04-01T23:59:59.000Z

377

Mechanical Engineering Department. Quarterly review, July-September 1978  

DOE Green Energy (OSTI)

Information is reported on five projects in progress at the Mechanical Engineering Department at Lawrence Livermore Laboratory. These projects involve: two-transducer test bed for ultrasonic imaging; warhead in-service status estimator; water quality studies for Imperial Valley Geothermal resource development; mirror fusion-fission hybrids; and impact tests of B77 for measuring dynamic buckling of titanium after body. (LCL)

Stone, R.G.; Condouris, R.A. (eds.)

1978-09-30T23:59:59.000Z

378

Diesel Rig Mechanical Peaking System Based on Flywheel Storage Technolgy  

Science Conference Proceedings (OSTI)

Flywheel energy storage technology is an emerging energy storage technology, there is a great development in recent years promising energy storage technology, with a large energy storage, high power, no pollution, use of broad, simple maintenance, enabling ... Keywords: Flywheel energy storage technology, mechanical peaking, diesel rig, peak motor

Shuguang Liu, Jia Wang

2012-07-01T23:59:59.000Z

379

From Quantum Mechanics to String Theory  

E-Print Network (OSTI)

From Quantum Mechanics to String Theory Relativity (why it makes sense) Quantum mechanics) New Particles anti-particles (combining special relativity and quantum mechanics pions (mediator mechanics, implies an infinite tower of negative energy states, rather than a ground state suppose

380

Bohmian Mechanics Detlef Durr, Sheldon Goldstein,  

E-Print Network (OSTI)

Bohmian Mechanics Detlef D¨urr, Sheldon Goldstein, Roderich Tumulka, and Nino Zangh`i December 31, 2004 Quantum Mechanics and Reality. While quantum mechanics, as presented in physics text- books (within the realm of quantum mechanics). A description of re- ality, in contrast, would tell us what

Goldstein, Sheldon

Note: This page contains sample records for the topic "development mechanism cdm" 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

From Quantum Mechanics to String Theory  

E-Print Network (OSTI)

From Quantum Mechanics to String Theory Relativity (why it makes sense) Quantum mechanics Extra Dimensions Strings and the Strong Force Thursday, June 4, 2009 #12;The Higgs Mechanism Summary Mechanical Particle Physics General Relativistic Quantum Gravity increasing speed decreasing size increasing

382

From Quantum Mechanics to String Theory  

E-Print Network (OSTI)

From Quantum Mechanics to String Theory Relativity (why it makes sense) Quantum mechanics, 2009 #12;Quantum Mechanics: Measurement and Uncertainty Thursday, May 7, 2009 #12;Puzzle: The Stern it. Quantum mechanics understanding: the particle exists in a state without definite position

383

Fifth World Congress on Computational Mechanics  

E-Print Network (OSTI)

WCCM V Fifth World Congress on Computational Mechanics July 7-12, 2002, Vienna, Austria Eds.: H Material in a Computational Fluid Dynamics Framework using Micro- Mechanical Models Nicholas Christakis London, UK e-mail: I.Bridle@gre.ac.uk Key words: granular material, continuum mechanics, micro-mechanical

Christakis, Nikolaos

384

Mechanical Property and Microstructural Characterization of ...  

Science Conference Proceedings (OSTI)

MECHANICAL PROPERTY AND MICROSTRUCTURAL CHARACTERIZATION. OF VACUUM DIE CAST SUPERALLOY MATERIALS. John J. Schirra...

385

Some topics in thermodynamics and quantum mechanics  

E-Print Network (OSTI)

We sketch some connecting relations involving fractional and quantum calculi, fractal structure, thermodynamics, and quantum mechanics.

Robert Carroll

2012-10-29T23:59:59.000Z

386

Automotive Stirling Engine Development Program Mod I Stirling engine development  

SciTech Connect

The Automotive Stirling Engine (ASE) Development Program was established to enable research and development of alternate propulsion systems. The program was awarded to Mechanical Technology Incorporated (MTI) for the purpose of developing an automotive Stirling engine, and transferring Stirling-engine technology to the United States. MTI has fabricated and tested four Mod I engines that have accumulated over 1900 test hours to date. The engines evaluated in the test cell have achieved an average of 34.5% efficiency at their maximum efficiency point (2000 rpm), and have developed an average maximum output power (power available to the drive train) level of 54.4 kW (73.2 bhp). All engines are still operating, and are being used to develop components and control strategy for the Upgraded Mod I engine design (predicted to increase maximum power output and efficiency while reducing total engine system weight).

Simetkosky, M.A.

1983-08-01T23:59:59.000Z

387

On Quantum Mechanical Aspects of Microtubules  

E-Print Network (OSTI)

We discuss possible quantum mechanical aspects of MicroTubules (MT), based on recent developments in quantum physics.We focus on potential mechanisms for `energy-loss-free' transport along the microtubules, which could be considered as realizations of Frhlich's ideas on the rle of solitons for superconductivity and/or biological matter. By representing the MT arrangements as cavities, we present a novel scenario on the formation of macroscopic (or mesoscopic) quantum-coherent states, as a result of the (quantum-electromagnetic) interactions of the MT dimers with the surrounding molecules of the ordered water in the interior of the MT cylinders. We suggest specific experiments to test the above-conjectured quantum nature of the microtubular arrangements inside the cell. These experiments are similar in nature to those in atomic physics, used in the detection of the Rabi-Vacuum coupling between coherent cavity modes and atoms. Our conjecture is that a similar Rabi-Vacuum-splitting phenomenon occurs in the M...

Mavromatos, Nikolaos E

1997-01-01T23:59:59.000Z

388

On Quantum Mechanical Aspects of Microtubules  

E-Print Network (OSTI)

We discuss possible quantum mechanical aspects of MicroTubules (MT), based on recent developments in quantum physics.We focus on potential mechanisms for `energy-loss-free' transport along the microtubules, which could be considered as realizations of Fr\\"ohlich's ideas on the r\\^ole of solitons for superconductivity and/or biological matter. By representing the MT arrangements as cavities,we present a novel scenario on the formation of macroscopic (or mesoscopic) quantum-coherent states, as a result of the (quantum-electromagnetic) interactions of the MT dimers with the surrounding molecules of the ordered water in the interior of the MT cylinders. We suggest specific experiments to test the above-conjectured quantum nature of the microtubular arrangements inside the cell. These experiments are similar in nature to those in atomic physics, used in the detection of the Rabi-Vacuum coupling between coherent cavity modes and atoms. Our conjecture is that a similar Rabi-Vacuum-splitting phenomenon occurs in the MT case.

N. E. Mavromatos; D. V. Nanopoulos

1997-08-01T23:59:59.000Z

389

Contact mechanics for randomly rough surfaces  

E-Print Network (OSTI)

When two solids are squeezed together they will in general not make atomic contact everywhere within the nominal (or apparent) contact area. This fact has huge practical implications and must be considered in many technological applications. In this paper I briefly review basic theories of contact mechanics. I consider in detail a recently developed contact mechanics theory. I derive boundary conditions for the stress probability distribution function for elastic, elastoplastic and adhesive contact between solids and present numerical results illustrating some aspects of the theory. I analyze contact problems for very smooth polymer (PMMA) and Pyrex glass surfaces prepared by cooling liquids of glassy materials from above the glass transition temperature. I show that the surface roughness which results from the frozen capillary waves can have a large influence on the contact between the solids. The analysis suggest a new explanation for puzzling experimental results [L. Bureau, T. Baumberger and C. Caroli, arXiv:cond-mat/0510232] about the dependence of the frictional shear stress on the load for contact between a glassy polymer lens and flat substrates. I discuss the possibility of testing the theory using numerical methods, e.g., finite element calculations.

Bo N. J. Persson

2006-03-30T23:59:59.000Z

390

Biharmonic superspace for N=4 mechanics  

SciTech Connect

We develop a new superfield approach to N=4 supersymmetric mechanics based on the concept of biharmonic superspace (bi-HSS). It is an extension of the N=4, d=1 superspace by two sets of harmonic variables associated with the two SU(2) factors of the R-symmetry group SO(4) of the N=4, d=1 super Poincare algebra. There are three analytic subspaces in it: two of the Grassmann dimension 2 and one of the dimension 3. They are closed under the infinite-dimensional 'large' N=4 superconformal group, as well as under the finite-dimensional superconformal group D(2,1;{alpha}). The main advantage of the bi-HSS approach is that it gives an opportunity to treat N=4 supermultiplets with finite numbers of off-shell components on equal footing with their 'mirror' counterparts. We show how such multiplets and their superconformal properties are described in this approach. We also define nonpropagating gauge multiplets which can be used to gauge various isometries of the bi-HSS actions. We present an example of a nontrivial N=4 mechanics model with a seven-dimensional target manifold obtained by gauging a U(1) isometry in a sum of the free actions of the multiplet (4,4,0) and its mirror counterpart.

Ivanov, E.; Niederle, J. [Bogoliubov Laboratory of Theoretical Physics, JINR, 141980 Dubna, Moscow Region (Russian Federation); Institute of Physics of the Academy of Sciences of the Czech Republic, Na Slovance 2, 18221 Prague (Czech Republic)

2009-09-15T23:59:59.000Z

391

HEAVY AND THERMAL OIL RECOVERY PRODUCTION MECHANISMS  

Science Conference Proceedings (OSTI)

This technical progress report describes work performed from January 1 through March 31, 2003 for the project ''Heavy and Thermal Oil Recovery Production Mechanisms,'' DE-FC26-00BC15311. In this project, a broad spectrum of research is undertaken related to thermal and heavy-oil recovery. The research tools and techniques span from pore-level imaging of multiphase fluid flow to definition of reservoir-scale features through streamline-based history matching techniques. During this period, previous analysis of experimental data regarding multidimensional imbibition to obtain shape factors appropriate for dual-porosity simulation was verified by comparison among analytic, dual-porosity simulation, and fine-grid simulation. We continued to study the mechanisms by which oil is produced from fractured porous media at high pressure and high temperature. Temperature has a beneficial effect on recovery and reduces residual oil saturation. A new experiment was conducted on diatomite core. Significantly, we show that elevated temperature induces fines release in sandstone cores and this behavior may be linked to wettability. Our work in the area of primary production of heavy oil continues with field cores and crude oil. On the topic of reservoir definition, work continued on developing techniques that integrate production history into reservoir models using streamline-based properties.

Anthony R. Kovscek

2003-04-01T23:59:59.000Z

392

HEAVY AND THERMAL OIL RECOVERY PRODUCTION MECHANISMS  

Science Conference Proceedings (OSTI)

This technical progress report describes work performed from October 1 through December 31, 2002 , for the project ''Heavy and Thermal Oil Recovery Production Mechanisms.'' In this project, a broad spectrum of research is undertaken related to thermal and heavy-oil recovery. The research tools and techniques used are varied and span from pore-level imaging of multiphase fluid flow to definition of reservoir-scale features through streamline-based history-matching techniques. During this period, experimental data regarding multidimensional imbibition was analyzed to obtain shape factors appropriate for dual-porosity simulation. It is shown that the usual assumption of constant, time-independent shape factors is incorrect. In other work, we continued to study the mechanisms by which oil is produced from fractured media at high pressure and high temperature. High temperature significantly increased the apparent wettability and affected water relative permeability of cores used in previous experiments. A phenomenological and mechanistic cause for this behavior is sought. Our work in the area of primary production of heavy oil continues with field cores and crude oil. On the topic of reservoir definition, work continued on developing techniques that integrate production history into reservoir models using streamline-based properties.

Anthony R. Kovscek

2003-01-01T23:59:59.000Z

393

[Feedback control mechanisms of plant cell expansion  

DOE Green Energy (OSTI)

We have generated considerable evidence for the significance of wall stress relaxation in the control of plant growth and found that several agents (gibberellin, light, genetic loci for dwarf stature) influence growth rate via alteration of wall relaxation. We have refined our methods for measuring wall relaxation and, moreover, have found that wall relaxation properties bear only a distance relationship to wall mechanical properties. We have garnered novel insights into the nature of cell expansion mechanisms by analyzing spontaneous fluctuations of plant growth rate in seedlings. These experiments involved the application of mathematical techniques for analyzing growth rate fluctuations and the development of new instrumentation for measuring and forcing plant growth in a controlled fashion. These studies conclude that growth rate fluctuations generated by the plant as consequence of a feedback control system. This conclusion has important implications for the nature of wall loosening processes and demands a different framework for thinking about growth control. It also implies the existence of a growth rate sensor.

Cosgrove, D.J.

1992-01-01T23:59:59.000Z

394

Contact Mechanics Based Mechanical Characterization of Portland Cement Paste  

E-Print Network (OSTI)

Current research interest in multi-scale modeling of cement paste requires accurate characterization of the time-dependent mechanical properties of the material, particularly the C-S-H phase. Nanoindentation is evaluated as a tool for measuring both the instantaneous and the short-term viscoelastic properties of cement paste. Atomic force microscopy (AFM) based indentation is compared to conventional nanoindentaion in measuring mechanical properties of cement pastes. Time-dependent solutions are derived to characterize creep indentation tests performed on hardened cement paste and to extract the time-dependent properties. The effect of approximating C-S-H viscoelastic properties with a time-independent Poisson's ratio is discussed, and arguments for utilizing a time-independent Poisson's ratio for short-term response are presented. In evaluating AFM as a mechanical characterization tool, various analytical and numerical modeling approaches are compared. The disparities between the numerical self-consistent approach and analytical solutions are determined and reported. The measured elastic Young's modulus values acquired by AFM indentation tests are compared to Young's modulus values from nanoindentation measurements from cement paste. These results show that the calcium silicate hydrate (C-S-H) phase of hydrated portland cement has different properties on the nanometric scale than on the micron scale. Packing density of C-S-H particles is proposed as an explanation for the disparity in the measured results. The AFM measured uniaxial viscoelastic compliance values are compared to similar values obtained with traditional nanoindentation for the same material. The comparison of these results shows that the calcium silicate hydrate (C-S-H) phase of portland cement has similar but distinct properties on the sub micron scale than on the micron scale. Additionally, the effect of moisture is evaluated by controlling the relative humidity (RH) of the testing environment between 40% and 100% plus, or wet. The viscoelastic compliance appears to be highest at 40% RH and the material appears to be less compliant at higher relative humidity levels. Possible mechanisms controlling the viscoelastic deformation are presented and evaluated in conjunction with the moisture related poromechanical effect.

Jones, Christopher

2011-12-01T23:59:59.000Z

395

Mechanical Technologies Inc MTI | Open Energy Information  

Open Energy Info (EERE)

Technologies Inc MTI Technologies Inc MTI Jump to: navigation, search Name Mechanical Technologies Inc (MTI) Place Albany, New York Zip 12205 Product The company is dedicated to developing and commercializing new technologies. Coordinates 42.707237°, -89.436378° 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":42.707237,"lon":-89.436378,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

396

New methods for quantum mechanical reaction dynamics  

DOE Green Energy (OSTI)

Quantum mechanical methods are developed to describe the dynamics of bimolecular chemical reactions. We focus on developing approaches for directly calculating the desired quantity of interest. Methods for the calculation of single matrix elements of the scattering matrix (S-matrix) and initial state-selected reaction probabilities are presented. This is accomplished by the use of absorbing boundary conditions (ABC) to obtain a localized (L{sup 2}) representation of the outgoing wave scattering Green`s function. This approach enables the efficient calculation of only a single column of the S-matrix with a proportionate savings in effort over the calculation of the entire S-matrix. Applying this method to the calculation of the initial (or final) state-selected reaction probability, a more averaged quantity, requires even less effort than the state-to-state S-matrix elements. It is shown how the same representation of the Green`s function can be effectively applied to the calculation of negative ion photodetachment intensities. Photodetachment spectroscopy of the anion ABC{sup -} can be a very useful method for obtaining detailed information about the neutral ABC potential energy surface, particularly if the ABC{sup -} geometry is similar to the transition state of the neutral ABC. Total and arrangement-selected photodetachment spectra are calculated for the H{sub 3}O{sup -} system, providing information about the potential energy surface for the OH + H{sub 2} reaction when compared with experimental results. Finally, we present methods for the direct calculation of the thermal rate constant from the flux-position and flux-flux correlation functions. The spirit of transition state theory is invoked by concentrating on the short time dynamics in the area around the transition state that determine reactivity. These methods are made efficient by evaluating the required quantum mechanical trace in the basis of eigenstates of the Boltzmannized flux operator.

Thompson, W.H. [Univ. of California, Berkeley, CA (United States). Dept. of Chemistry]|[Lawrence Berkeley Lab., CA (United States)

1996-12-01T23:59:59.000Z

397

AHTR Mechanical, Structural, And Neutronic Preconceptual Design  

SciTech Connect

This report provides an overview of the mechanical, structural, and neutronic aspects of the Advanced High Temperature Reactor (AHTR) design concept. The AHTR is a design concept for a large output Fluoride salt cooled High-temperature Reactor (FHR) that is being developed to enable evaluation of the technology hurdles remaining to be overcome prior to FHRs becoming a commercial reactor class. This report documents the incremental AHTR design maturation performed over the past year and is focused on advancing the design concept to a level of a functional, self-consistent system. The AHTR employs plate type coated particle fuel assemblies with rapid, off-line refueling. Neutronic analysis of the core has confirmed the viability of a 6-month 2-batch cycle with 9 weight-percent enriched uranium fuel. Refueling is intended to be performed automatically under visual guidance using dedicated robotic manipulators. The present design intent is for used fuel to be stored inside of containment for at least 6 months and then transferred to local dry wells for intermediate term, on-site storage. The mechanical and structural concept development effort has included an emphasis on transportation and constructability to minimize construction costs and schedule. The design intent is that all components be factory fabricated into rail transportable modules that are assembled into subsystems at an on-site workshop prior to being lifted into position using a heavy-lift crane in an open-top style construction. While detailed accident identification and response sequence analysis has yet to be performed, the design concept incorporates multiple levels of radioactive material containment including fully passive responses to all identified design basis or non-very-low frequency beyond design basis accidents. Key building design elements include: 1) below grade siting to minimize vulnerability to aircraft impact, 2) multiple natural circulation decay heat rejection chimneys, 3) seismic base isolation, and 4) decay heat powered back-up electricity generation. The report provides a preconceptual design of the manipulators, the fuel transfer system, and the salt transfer loops. The mechanical handling of the fuel and how it is accomplished without instrumentation inside the salt is described within the report. All drives for the manipulators reside outside the reactor top flange. The design has also taken into account the transportability of major components and how they will be assembled on site

Varma, Venugopal Koikal [ORNL; Holcomb, David Eugene [ORNL; Peretz, Fred J [ORNL; Bradley, Eric Craig [ORNL; Ilas, Dan [ORNL; Qualls, A L [ORNL; Zaharia, Nathaniel M [ORNL

2012-10-01T23:59:59.000Z

398

Statistical Mechanics of Dictionary Learning  

E-Print Network (OSTI)

Finding a basis matrix (dictionary) by which objective signals are represented sparsely is of major relevance in various scientific and technological fields. We consider a problem to learn a dictionary from a set of training signals. We employ techniques of statistical mechanics of disordered systems to evaluate the size of the training set necessary to typically succeed in the dictionary learning. The results indicate that the necessary size is much smaller than previously estimated, which theoretically supports and/or encourages the use of dictionary learning in practical situations.

Sakata, Ayaka

2012-01-01T23:59:59.000Z

399

Development of a liquid-fueled micro-combustor  

E-Print Network (OSTI)

Advances in Micro-Electro-Mechanical Systems (MEMS) have made possible the development of shirtbutton-sized gas turbine engines for use as portable power sources. As part of an effort to develop a microscale gas turbine ...

Peck, Jhongwoo, 1976-

2008-01-01T23:59:59.000Z

400

Developers | Data.gov  

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

Developers Developer Data Web Services Source Code Challenges Semantic Web Blogs Let's Talk Developers Welcome to Developers.Data.gov This community brings together developers from...

Note: This page contains sample records for the topic "development mechanism cdm" 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

Probable Inference and Quantum Mechanics  

SciTech Connect

In its current very successful interpretation the quantum theory is fundamentally statistical in nature. Although commonly viewed as a probability amplitude whose (complex) square is a probability, the wavefunction or state vector continues to defy consensus as to its exact meaning, primarily because it is not a physical observable. Rather than approach this problem directly, it is suggested that it is first necessary to clarify the precise role of probability theory in quantum mechanics, either as applied to, or as an intrinsic part of the quantum theory. When all is said and done the unsurprising conclusion is that quantum mechanics does not constitute a logic and probability unto itself, but adheres to the long-established rules of classical probability theory while providing a means within itself for calculating the relevant probabilities. In addition, the wavefunction is seen to be a description of the quantum state assigned by an observer based on definite information, such that the same state must be assigned by any other observer based on the same information, in much the same way that probabilities are assigned.

Grandy, W. T. Jr. [Department of Physics and Astronomy, University of Wyoming, Laramie, WY 82070 (United States)

2009-12-08T23:59:59.000Z

402

Developing bioenergy fuels: Biopower fact sheet  

DOE Green Energy (OSTI)

Successful development of biomass crops requires unique cooperation between researchers and members of the energy, agriculture, forestry, and environmental communities. DOE's Bioenergy Feedstock Development Program provides a mechanism to integrate the efforts of this diverse group. The federal government must continue to share risks (costs of growing, harvesting, storing, and supplying energy crops) for early adopters of energy crop technology and biomass energy producers.

Shepherd, P.

2000-06-02T23:59:59.000Z

403

Wind energy curriculum development at GWU  

DOE Green Energy (OSTI)

A wind energy curriculum has been developed at the George Washington University, School of Engineering and Applied Science. Surveys of student interest and potential employers expectations were conducted. Wind industry desires a combination of mechanical engineering training with electrical engineering training. The curriculum topics and syllabus were tested in several graduate/undergraduate elective courses. The developed curriculum was then submitted for consideration.

Hsu, Stephen M [GWU

2013-06-08T23:59:59.000Z

404

Laboratory of mechanics PhD Thesis in Non-linear Mechanics  

E-Print Network (OSTI)

Laboratory of mechanics PhD Thesis in Non-linear Mechanics 1 DYNAMICS AND ACTIVE CONTROL WITH DELAY OF THE DYNAMICS OF UNBOUNDED MONOSTABLE MECHANICAL STRUCTURES WITH 6 POTENTIAL NANA NBENDJO Blaise Roméo2005 #12;Laboratory of mechanics PhD Thesis in Non-linear Mechanics 2 TABLE OF CONTENTS tel-00009933

Paris-Sud XI, Université de

405

Status of SACTI Beta Development  

Science Conference Proceedings (OSTI)

The Seasonal/Annual Cooling Tower Impact (SACTI) model, developed by Argonne National Laboratory and the University of Illinois, provides predictions of seasonal and annual cooling tower impacts from any number of mechanical or natural-draft cooling towers. SACTI was used extensively in the 1980s and early 1990s to assess cooling tower impacts associated with fossil and nuclear power production. It was originally designed to be run on a mainframe mini-computer using magnetic tapestechnology ...

2012-12-17T23:59:59.000Z

406

Ceramic dome receiver technology developments  

DOE Green Energy (OSTI)

The development and experimental demonstration of a high-temperature seal for the SHARE ceramic dome cavity receiver is reported. The mechanical contact seal which was tested on one-foot-diameter silicon-carbide ceramic-dome hardware at pressure differentials to four atmospheres and dome temperatures to 2200/sup 0/F (1200/sup 0/C) showed negligible leakage at expected receiver operating conditions. Potential solar receiver applications for the technology are illustrated.

Jarvinen, P. O.

1980-01-01T23:59:59.000Z

407

Mechanical Systems Qualification Standard DOE-STD-1161-2008  

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

Mechanical Systems Mechanical Systems Qualification Standard DOE-STD-1161-2008 August 2012 Reference Guide The Functional Area Qualification Standard References Guides are developed to assist operators, maintenance personnel, and the technical staff in the acquisition of technical competence and qualification within the Technical Qualification Program (TQP). Please direct your questions or comments related to this document to Patrick C. Romero, Deputy TQP Manager, Office of Leadership and Career Management, NNSA Albuquerque Complex, 505.845.6371. This page is intentionally blank. ii Table of Contents FIGURES ....................................................................................................................................... v TABLES ....................................................................................................................................... vii

408

Influence of frozen capillary waves on contact mechanics  

E-Print Network (OSTI)

Free surfaces of liquids exhibit thermally excited (capillary) surface waves. We show that the surface roughness which results from capillary waves when a glassy material is cooled below the glass transition temperature can have a large influence on the contact mechanics between the solids. The theory suggest a new explanation for puzzling experimental results [L. Bureau, T. Baumberger and C. Caroli, arXiv:cond-mat/0510232] about the dependence of the frictional shear stress on the load for contact between a glassy polymer lens and flat substrates. It also lend support for a recently developed contact mechanics theory.

B. N. J. Persson

2005-12-23T23:59:59.000Z

409

AHTR Mechanical, Structural, and Neutronic Preconceptual Design  

SciTech Connect

This report provides an overview of the mechanical, structural, and neutronic aspects of the Advanced High Temperature Reactor (AHTR) design concept. The AHTR is a design concept for a large output Fluoride salt cooled High-temperature Reactor (FHR) that is being developed to enable evaluation of the technology hurdles remaining to be overcome prior to FHRs becoming an option for commercial reactor deployment. This report documents the incremental AHTR design maturation performed over the past year and is focused on advancing the design concept to a level of a functional, self-consistent system. The reactor concept development remains at a preconceptual level of maturity. While the overall appearance of an AHTR design is anticipated to be similar to the current concept, optimized dimensions will differ from those presented here. The AHTR employs plate type coated particle fuel assemblies with rapid, off-line refueling. Neutronic analysis of the core has confirmed the viability of a 6-month two-batch cycle with 9 wt. % enriched uranium fuel. Refueling is intended to be performed automatically under visual guidance using dedicated robotic manipulators. The report includes a preconceptual design of the manipulators, the fuel transfer system, and the used fuel storage system. The present design intent is for used fuel to be stored inside of containment for at least six months and then transferred to local dry wells for intermediate term, on-site storage. The mechanical and structural concept development effort has included an emphasis on transportation and constructability to minimize construction costs and schedule. The design intent is that all components be factory fabricated into rail transportable modules that are assembled into subsystems at an on-site workshop prior to being lifted into position using a heavy-lift crane in an open-top style construction. While detailed accident identification and response sequence analysis has yet to be performed, the design concept incorporates fully passive responses to all identified design basis or non-very-low frequency beyond design basis accidents as well as multiple levels of radioactive material containment. Key building design elements include (1) below grade siting to minimize vulnerability to aircraft impact, (2) multiple natural circulation decay heat rejection chimneys, (3) seismic base isolation, and (4) decay heat powered back-up electricity generation.

Varma, V.K.; Holcomb, D.E.; Peretz, F.J.; Bradley, E.C.; Ilas, D.; Qualls, A.L.; Zaharia, N.M.

2012-09-15T23:59:59.000Z

410

Baseline Graphite Initial Mechanical Test Report  

SciTech Connect

The Next Generation Nuclear Plant (NGNP) Project is tasked with selecting a high temperature gas reactor technology that will be capable of generating electricity and supplying large amounts of process heat. The NGNP is presently being designed as a helium-cooled high temperature gas reactor (HTGR) with a large graphite core. The graphite baseline characterization project is conducting the research and development (R&D) activities deemed necessary to fully qualify nuclear-grade graphite for use in the NGNP reactor. One of the major fundamental objectives of the project is establishing nonirradiated thermomechanical and thermophysical properties by characterizing lot-to-lot and billet-to-billet variations (for probabilistic baseline data needs) through extensive data collection and statistical analysis. The reactor core will be made up of stacks of graphite moderator blocks. In order to gain a more comprehensive understanding of the varying characteristics in a wide range of suitable graphites, any of which can be classified as nuclear grade, an experimental program has been initiated to develop an extensive database of the baseline characteristics of numerous candidate graphites. Various factors known to affect the properties of graphite will be investigated, including specimen size, spatial location within a graphite billet, specimen orientation within a billet (either parallel to [P] or transverse to [T] the long axis of the as-produced billet), and billet-to-billet variations within a lot or across different production lots. Because each data point is based on a certain position within a given billet of graphite, particular attention must be paid to the traceability of each specimen and its spatial location and orientation within each billet. The evaluation of these properties is discussed in the Graphite Technology Development Plan (Windes et. al 2007). One of the key components in the evaluation of these graphite types will be mechanical testing of specimens drawn from carefully controlled sections of each billet. This report is confirmation that the test procedures are in place and approved, and that mechanical testing of graphite under the Baseline Graphite Characterization program has commenced.

Mark Carroll; Randy Lloyd

2009-09-01T23:59:59.000Z

411

Efficiency of the dynamical mechanism  

E-Print Network (OSTI)

The most extreme starbursts occur in galaxy mergers, and it is now acknowledged that dynamical triggering has a primary importance in star formation. This triggering is due partly to the enhanced velocity dispersion provided by gravitational instabilities, such as density waves and bars, but mainly to the radial gas flows they drive, allowing large amounts of gas to condense towards nuclear regions in a small time scale. Numerical simulations with several gas phases, taking into account the feedback to regulate star formation, have explored the various processes, using recipes like the Schmidt law, moderated by the gas instability criterion. May be the most fundamental parameter in starbursts is the availability of gas: this sheds light on the amount of external gas accretion in galaxy evolution. The detailed mechanisms governing gas infall in the inner parts of galaxy disks are discussed.

F. Combes

2004-11-15T23:59:59.000Z

412

Mechanical Properties of Nanocrystal Supercrystals  

Science Conference Proceedings (OSTI)

Colloidal nanocrystals attract significant interest due to their potential applications in electronic, magnetic, and optical devices. Nanocrystal supercrystals (NCSCs) are particularly appealing for their well ordered structure and homogeneity. The interactions between organic ligands that passivate the inorganic nanocrystal cores critically influence their self-organization into supercrystals, By investigating the mechanical properties of supercrystals, we can directly characterize the particle-particle interactions in a well-defined geometry, and gain insight into both the self-assembly process and the potential applications of nanocrystal supercrystals. Here we report nanoindentation studies of well ordered lead-sulfide (Pbs) nanocrystal supercrystals. Their modulus and hardness were found to be similar to soft polymers at 1.7 GPa and 70 MPa respectively and the fractures toughness was 39 KPa/m1/2, revealing the extremely brittle nature of these materials.

Tam, Enrico; Podsiadlo, Paul; Shevchenko, Elena; Ogletree, D. Frank; Delplancke-Ogletree, Marie-Paule; Ashby, Paul D.

2009-12-30T23:59:59.000Z

413

Mechanical Engineering Department technical abstracts  

SciTech Connect

The Mechanical Engineering Department publishes abstracts twice a year to inform readers of the broad range of technical activities in the Department, and to promote an exchange of ideas. Details of the work covered by an abstract may be obtained by contacting the author(s). General information about the current role and activities of each of the Department's seven divisions precedes the technical abstracts. Further information about a division's work may be obtained from the division leader, whose name is given at the end of each divisional summary. The Department's seven divisions are as follows: Nuclear Test Engineering Division, Nuclear Explosives Engineering Division, Weapons Engineering Division, Energy Systems Engineering Division, Engineering Sciences Division, Magnetic Fusion Engineering Division and Materials Fabrication Division.

1984-07-01T23:59:59.000Z

414

THE OBJECTIVE INDEFINITENESS INTERPRETATION OF QUANTUM MECHANICS: Partition logic, logical information theory, and quantum mechanics  

E-Print Network (OSTI)

THE OBJECTIVE INDEFINITENESS INTERPRETATION OF QUANTUM MECHANICS: Partition logic, logical information theory, and quantum mechanics David Ellerman University of California at Riverside www ago that quantum mechanics was not compatible with Boolean logic, then the natural thing to do would

Wüthrich, Christian

415

Apparatus and method for generating mechanical waves  

DOE Patents (OSTI)

Mechanical waves are generated in a medium by subjecting an electromechanical element to an alternating electric field having a frequency which induces mechanical resonance therein and is below any electrical resonance frequency thereof.

Allensworth, D.L.; Chen, P.J.

1982-10-25T23:59:59.000Z

416

Star Products for Relativistic Quantum Mechanics  

E-Print Network (OSTI)

The star product formalism has proved to be an alternative formulation for nonrelativistic quantum mechanics. We want introduce here a covariant star product in order to extend the star product formalism to relativistic quantum mechanics in the proper time formulation.

P. Henselder

2007-05-24T23:59:59.000Z

417

Green fluorescent protein as a mechanical sensor  

E-Print Network (OSTI)

Inquiry into intracellular and cytoskeletal mechanics requires an intracellular mechanical sensor to verify models of sub-cellular structure dynamics. To this end, the green fluorescent protein (GFP) is considered as a ...

Muso, Taro M. (Taro Michael)

2007-01-01T23:59:59.000Z

418

Elucidating mechanisms of accelerated neurological aging  

E-Print Network (OSTI)

C. (2005). Mechanisms of aging in senescence- accelerated2.2 Strain-specific aging gene-expression profiles..C. (2005). Mechanisms of aging in senescence-accelerated

Greenhall, Jennifer Anne

2008-01-01T23:59:59.000Z

419

Perfect Implementation of Normal-Form Mechanisms  

E-Print Network (OSTI)

Privacy and trust affect our strategic thinking, yet they have not been precisely modeled in mechanism design. In settings of incomplete information, traditional implementations of a normal-form mechanism ---by disregarding ...

Izmalkov, Sergei

420

Molecular Mechanisms of Uranium Reduction by Clostridia  

SciTech Connect

The objective of this research is to elucidate systematically the molecular mechanisms involved in the reduction of uranium by Clostridia.

Francis, A.J.; Matin, A.C.; Gao, W.; Chidambaram, D.; Barak, Y.; Dodge, C.J.

2006-04-05T23:59:59.000Z

Note: This page contains sample records for the topic "development mechanism cdm" 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

Micro- and Nano-Mechanical Systems  

Science Conference Proceedings (OSTI)

Micro- and Nano- Mechanical Systems. Summary: ... We are interested in studying and controlling micro- and nano-optomechanical systems. ...

2012-07-25T23:59:59.000Z

422

Quantum Mechanics Joachim Burgdorfer and Stefan Rotter  

E-Print Network (OSTI)

1 1 Quantum Mechanics Joachim Burgd¨orfer and Stefan Rotter 1.1 Introduction 3 1.2 Particle and Quantization 8 1.5 Angular Momentum in Quantum Mechanics 9 1.6 Formalism of Quantum Mechanics 12 1.7 Solution 29 1.8.3 Resonances 30 1.9 Semiclassical Mechanics 31 1.9.1 The WKB Approximation 31 1.9.2 The EBK

Rotter, Stefan

423

On a New Form of Quantum Mechanics  

E-Print Network (OSTI)

We propose a new form of nonrelativistic quantum mechanics which is based on a quantum version of the action principle.

N. N. Gorobey; A. S. Lukyanenko

2008-07-22T23:59:59.000Z

424

Summary of Linear Elastic Fracture Mechanics Concepts  

Science Conference Proceedings (OSTI)

...in this Volume."Stress Intensity Factors"A brief summary of linear elastic fracture mechanics (LEFM) concepts

425

Atomic Scale Deformation Mechanisms of Amorphous Polyethylene ...  

Science Conference Proceedings (OSTI)

Atomic Scale Deformation Mechanisms of Amorphous Polyethylene under Tensile Loading Atomistic Predictions of Age Hardening in Al-Cu Alloys.

426

Mechanical Systems & Controls Group Staff Directory  

Science Conference Proceedings (OSTI)

Mechanical Systems and Controls Group Staff. Staff Listing. Steven T. Bushby, Leader, Supervisory Electronics Engineer, 301-975-5873. ...

2013-08-26T23:59:59.000Z

427

Degradation Mechanism of SOFC Cathode Electrolyte Systems ...  

Science Conference Proceedings (OSTI)

Presentation Title, Degradation Mechanism of SOFC Cathode Electrolyte Systems Incorporating Doped Lathanum Gallates. Author(s), Chuan Zhang, Anh T.

428

Starting from Quantum Mechanics - Programmaster.org  

Science Conference Proceedings (OSTI)

Computational Modeling and Simulation of Advanced Materials for Energy Applications: Starting from Quantum Mechanics Sponsored by: TMS/ASM:...

429

Microstructure and Mechanical Properties of Bulk Ultrafine ...  

Science Conference Proceedings (OSTI)

Abstract Scope, High energy mechanical milling (HEMM) is an effective technique to disperse ... Advanced Characterization of Metal Matrix Nano-

430

Mathematically Reduced Chemical Reaction Mechanism Using Neural Networks  

DOE Green Energy (OSTI)

This is the final technical report for the project titled 'Mathematically Reduced Chemical Reaction Mechanism Using Neural Networks'. The aim of the project was to develop an efficient chemistry model for combustion simulations. The reduced chemistry model was developed mathematically without the need of having extensive knowledge of the chemistry involved. To aid in the development of the model, Neural Networks (NN) was used via a new network topology known as Non-linear Principal Components Analysis (NPCA). A commonly used Multilayer Perceptron Neural Network (MLP-NN) was modified to implement NPCA-NN. The training rate of NPCA-NN was improved with the GEneralized Regression Neural Network (GRNN) based on kernel smoothing techniques. Kernel smoothing provides a simple way of finding structure in data set without the imposition of a parametric model. The trajectory data of the reaction mechanism was generated based on the optimization techniques of genetic algorithm (GA). The NPCA-NN algorithm was then used for the reduction of Dimethyl Ether (DME) mechanism. DME is a recently discovered fuel made from natural gas, (and other feedstock such as coal, biomass, and urban wastes) which can be used in compression ignition engines as a substitute for diesel. An in-house two-dimensional Computational Fluid Dynamics (CFD) code was developed based on Meshfree technique and time marching solution algorithm. The project also provided valuable research experience to two graduate students.

Ziaul Huque

2007-08-31T23:59:59.000Z

431

KTH Mechanics SE-100 44 Stockholm, Sweden  

E-Print Network (OSTI)

KTH Mechanics SE-100 44 Stockholm, Sweden Activity Report 2006 Contents 1. Introduction 2. 3 Publications and conference presentations during 2006 5. 4 Seminars at Mechanics, KTH 1 #12 of Mechanics, KTH during the year of 2006. More information may be found at the department web site http

Haviland, David

432

A Criterion for Holism in Quantum Mechanics  

E-Print Network (OSTI)

A Criterion for Holism in Quantum Mechanics M.P Seevinck E-mail: M.P.Seevinck@phys.uu.nl Utrecht University, The Netherlands, August 2003. 1 #12; Motivation · The question whether or not quantum mechanics is it that makes quantum mechanics a holistic theory (if so), and other physical theories not (if so). · I propose

Seevinck, Michiel

433

A Criterion for Holism in Quantum Mechanics  

E-Print Network (OSTI)

A Criterion for Holism in Quantum Mechanics M.P Seevinck Utrecht University, The Netherlands, June 2003. 1 #12; Motivation · The question whether or not quantum mechanics (QM) gives rise to some mechanics a holistic theory (if so), and other physical theories not (if so). · I propose an operational

Seevinck, Michiel

434

KTH Mechanics SE-100 44 Stockholm, Sweden  

E-Print Network (OSTI)

KTH Mechanics SE-100 44 Stockholm, Sweden Activity Report 2005 Contents 1. Introduction 2. 3 Publications and conference presentations during 2005 5. 4 Seminars at Mechanics, KTH 1 #12 of Mechanics, KTH during the year of 2005. More information may be found at the department web site http

Haviland, David

435

A Criterion for Holism in Quantum Mechanics  

E-Print Network (OSTI)

A Criterion for Holism in Quantum Mechanics # M.P Seevinck # # Utrecht University, The Netherlands, June 2003. # 1 #12; # Motivation # . The question whether or not quantum mechanics (QM) gives rise mechanics a holistic theory (if so), and other physical theories not (if so). . I propose an operational

Seevinck, Michiel

436

Statistical mechanics and ocean circulation Rick Salmon  

E-Print Network (OSTI)

Statistical mechanics and ocean circulation Rick Salmon Scripps Institution of Oceanography, UCSD equilibrium statistical mechanics based upon the conservation of energy and potential enstrophy to the mass. The equilibrium state resembles the buoyancy structure actually observed. Key words: statistical mechanics, ocean

Salmon, Rick

437

Course Syllabus PHYS 331 Advanced Classical Mechanics  

E-Print Network (OSTI)

Course Syllabus PHYS 331 ­ Advanced Classical Mechanics Fall 2011 Instructor: Ben Vollmayr-Lee, Olin 168, ben.vollmayr-lee@bucknell.edu, x73106 Textbook: John Taylor, Classical Mechanics Office Hours://www.eg.bucknell.edu/bvollmay/phys331 Course Description Classical mechanics is where it all started. Newton demonstrated that the same

Vollmayr-Lee, Ben

438

Probability in modal interpretations of quantum mechanics  

E-Print Network (OSTI)

Probability in modal interpretations of quantum mechanics Dennis Dieks Institute for the History interpretations have the ambition to construe quantum mechanics as an ob- jective, man-independent description of physical reality. Their second leading idea is probabilism: quantum mechanics does not completely fix

Seevinck, Michiel

439

Coupled Thermal-Hydrological-Mechanical Processes in Salt, Hot Granular  

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

Coupled Thermal-Hydrological-Mechanical Processes in Salt, Hot Coupled Thermal-Hydrological-Mechanical Processes in Salt, Hot Granular Salt Consolidation, Constitutive Model and Micromechanics Coupled Thermal-Hydrological-Mechanical Processes in Salt, Hot Granular Salt Consolidation, Constitutive Model and Micromechanics The report addresses granular salt reconsolidation from three vantage points: laboratory testing, modeling, and petrofabrics. The experimental data 1) provide greater insight and understanding into the role of elevated temperature and pressure regimes on physical properties of reconsolidated crushed salt, 2) can supplement an existing database used to develop a reconsolidation constitutive model and 3) provide data for model evaluation. The constitutive model accounts for the effects of moisture through pressure solution and dislocation creep, with both terms dependent

440

Coupled Thermal-Hydrological-Mechanical Processes in Salt, Hot Granular  

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

Coupled Thermal-Hydrological-Mechanical Processes in Salt, Hot Coupled Thermal-Hydrological-Mechanical Processes in Salt, Hot Granular Salt Consolidation, Constitutive Model and Micromechanics Coupled Thermal-Hydrological-Mechanical Processes in Salt, Hot Granular Salt Consolidation, Constitutive Model and Micromechanics The report addresses granular salt reconsolidation from three vantage points: laboratory testing, modeling, and petrofabrics. The experimental data 1) provide greater insight and understanding into the role of elevated temperature and pressure regimes on physical properties of reconsolidated crushed salt, 2) can supplement an existing database used to develop a reconsolidation constitutive model and 3) provide data for model evaluation. The constitutive model accounts for the effects of moisture through pressure solution and dislocation creep, with both terms dependent

Note: This page contains sample records for the topic "development mechanism cdm" 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

Yoichiro Nambu and the Mechanism of Spontaneous Broken Symmetries in  

Office of Scientific and Technical Information (OSTI)

Yoichiro Nambu and the Mechanism of Yoichiro Nambu and the Mechanism of Spontaneous Broken Symmetries in Subatomic Physics Resources with Additional Information · Awards Yoichiro Nambu Credit: University of Chicago Yoichiro Nambu was awarded the 2008 Nobel Prize in Physics "for the discovery of the mechanism of spontaneous broken symmetry in subatomic physics". Nambu 'has revolutionized modern scientific ideas about the nature of the most fundamental particles and the space through which they move. His theories form an essential cornerstone of what physicists call the Standard Model, which explains in a unified way three of the four fundamental forces of nature: strong, weak and electromagnetic. He also has significantly influenced the development of quantum chromodynamics, a theory that describes certain interactions between quarks and between protons and neutrons.' 1

442

Kenmec Mechanical Engineering Co Ltd | Open Energy Information  

Open Energy Info (EERE)

Kenmec Mechanical Engineering Co Ltd Kenmec Mechanical Engineering Co Ltd Jump to: navigation, search Name Kenmec Mechanical Engineering Co Ltd Place Taipei, Taiwan Sector Solar Product A automatic transmission system provider who has entered solar cell equipment manufacturing business by developing solar cell automatic transmission system and testing equipment. Coordinates 25.080441°, 121.564194° 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":25.080441,"lon":121.564194,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

443

An efficient method for the calculation of quantum mechanics/molecular mechanics free energies  

Science Conference Proceedings (OSTI)

The combination of quantum mechanics (QM) with molecular mechanics (MM) offers a route to improved accuracy in the study of biological systems

Christopher J. Woods; Frederick R. Manby; Adrian J. Mulholland

2008-01-01T23:59:59.000Z

444

Mechanical modeling of porous oxide fuel pellet A Test Problem  

Science Conference Proceedings (OSTI)

A poro-elasto-plastic material model has been developed to capture the response of oxide fuels inside the nuclear reactors under operating conditions. Behavior of the oxide fuel and variation in void volume fraction under mechanical loading as predicted by the developed model has been reported in this article. The significant effect of void volume fraction on the overall stress distribution of the fuel pellet has also been described. An important oxide fuel issue that can have significant impact on the fuel performance is the mechanical response of oxide fuel pellet and clad system. Specifically, modeling the thermo-mechanical response of the fuel pellet in terms of its thermal expansion, mechanical deformation, swelling due to void formation and evolution, and the eventual contact of the fuel with the clad is of significant interest in understanding the fuel-clad mechanical interaction (FCMI). These phenomena are nonlinear and coupled since reduction in the fuel-clad gap affects thermal conductivity of the gap, which in turn affects temperature distribution within the fuel and the material properties of the fuel. Consequently, in order to accurately capture fuel-clad gap closure, we need to account for fuel swelling due to generation, retention, and evolution of fission gas in addition to the usual thermal expansion and mechanical deformation. Both fuel chemistry and microstructure also have a significant effect on the nucleation and growth of fission gas bubbles. Fuel-clad gap closure leading to eventual contact of the fuel with the clad introduces significant stresses in the clad, which makes thermo-mechanical response of the clad even more relevant. The overall aim of this test problem is to incorporate the above features in order to accurately capture fuel-clad mechanical interaction. Because of the complex nature of the problem, a series of test problems with increasing multi-physics coupling features, modeling accuracy, and complexity are defined with the objective of accurate simulation of fuel-clad mechanical interaction subjected to a wide-range of thermomechanical stimuli.

Nukala, Phani K [ORNL; Barai, Pallab [ORNL; Simunovic, Srdjan [ORNL; Ott, Larry J [ORNL

2009-10-01T23:59:59.000Z

445

NOx Sensor Development  

SciTech Connect

NO{sub x} compounds, specifically NO and NO{sub 2}, are pollutants and potent greenhouse gases. Compact and inexpensive NO{sub x} sensors are necessary in the next generation of diesel (CIDI) automobiles to meet government emission requirements and enable the more rapid introduction of more efficient, higher fuel economy CIDI vehicles. Because the need for a NO{sub x} sensor is recent and the performance requirements are extremely challenging, most are still in the development phase. Currently, there is only one type of NO{sub x} sensor that is sold commercially, and it seems unlikely to meet more stringent future emission requirements. Automotive exhaust sensor development has focused on solid-state electrochemical technology, which has proven to be robust for in-situ operation in harsh, high-temperature environments (e.g., the oxygen stoichiometric sensor). Solid-state sensors typically rely on yttria-stabilized zirconia (YSZ) as the oxygen-ion conducting electrolyte and then target different types of metal or metal-oxide electrodes to optimize the response. Electrochemical sensors can be operated in different modes, including amperometric (a current is measured) and potentiometric (a voltage is measured), both of which employ direct current (dc) measurements. Amperometric operation is costly due to the electronics necessary to measure the small sensor signal (nanoampere current at ppm NO{sub x} levels), and cannot be easily improved to meet the future technical performance requirements. Potentiometric operation has not demonstrated enough promise in meeting long-term stability requirements, where the voltage signal drift is thought to be due to aging effects associated with electrically driven changes, both morphological and compositional, in the sensor. Our approach involves impedancemetric operation, which uses alternating current (ac) measurements at a specified frequency. The approach is described in detail in previous reports and several publications. Briefly, impedancemetric operation has shown the potential to overcome the drawbacks of other approaches, including higher sensitivity towards NO{sub x}, better long-term stability, potential for subtracting out background interferences, total NO{sub x} measurement, and lower cost materials and operation. Past LLNL research and development efforts have focused on characterizing different sensor materials and understanding complex sensing mechanisms. Continued effort has led to improved prototypes with better performance, including increased sensitivity (to less than 5 ppm) and long-term stability, with more appropriate designs for mass fabrication, including incorporation of an alumina substrate with an imbedded heater. Efforts in the last year to further improve sensor robustness have led to successful engine dynamometer testing with prototypes mounted directly in the engine manifold. Previous attempts had required exhaust gases to be routed into a separate furnace for testing due to mechanical failure of the sensor from engine vibrations. A more extensive cross-sensitivity study was also undertaken this last year to examine major noise factors including fluctuations in water, oxygen, and temperature. The quantitative data were then used to develop a strategy using numerical algorithms to improve sensor accuracy. The ultimate goal is the transfer of this technology to a supplier for commercialization. Due to the recent economic downturn, suppliers are demanding more comprehensive data and increased performance analysis before committing their resources to take the technology to market. Therefore, our NO{sub x} sensor work requires a level of technology development more thorough and extensive than ever before. The objectives are: (1) Develop an inexpensive, rapid-response, high-sensitivity and selective electrochemical sensor for oxides of nitrogen (NO{sub x}) for compression-ignition, direct-injection (CIDI) exhaust gas monitoring; (2) Explore and characterize novel, effective sensing methodologies based on impedance measurements and designs and manufacturing metho

Woo, L Y; Glass, R S

2010-11-01T23:59:59.000Z

446

On reconciling quantum mechanics and local realism  

E-Print Network (OSTI)

A necessary and natural change in our application of quantum mechanics to separated systems is shown to reconcile quantum mechanics and local realism. An analysis of separation and localization justifies the proposed change in application of quantum mechanics. An important EPRB experiment is reconsidered and it is seen that when it is correctly interpreted it supports local realism. This reconciliation of quantum mechanics with local realism allows the axiom sets of quantum mechanics, probability, and special relativity to be joined in a consistent global axiom set for physics.

Donald A. Graft

2013-09-04T23:59:59.000Z

447

Detailed chemical kinetic reaction mechanisms for soy and rapeseed biodiesel fuels  

E-Print Network (OSTI)

properties between the two biodiesel fuels, derived from soy and rapeseed oils, are traced to the differencesDetailed chemical kinetic reaction mechanisms for soy and rapeseed biodiesel fuels C.K. Westbrooka chemical kinetic reaction mechanism is developed for the five major components of soy biodiesel

Paris-Sud XI, Université de

448

The current generation of building simulation software is based upon separate building and mechanical system  

E-Print Network (OSTI)

and mechanical systems. Work is underway to develop a new version of the Building Loads Analysis and SystemThe current generation of building simulation software is based upon separate building Thermodynamics (BLAST) [1] energy analysis program which will simulate buildings and mechanical systems

449

High Temperature Capacitor Development  

Science Conference Proceedings (OSTI)

The absence of high-temperature electronics is an obstacle to the development of untapped energy resources (deep oil, gas and geothermal). US natural gas consumption is projected to grow from 22 trillion cubic feet per year (tcf) in 1999 to 34 tcf in 2020. Cumulatively this is 607 tcf of consumption by 2020, while recoverable reserves using current technology are 177 tcf. A significant portion of this shortfall may be met by tapping deep gas reservoirs. Tapping these reservoirs represents a significant technical challenge. At these depths, temperatures and pressures are very high and may require penetrating very hard rock. Logistics of supporting 6.1 km (20,000 ft) drill strings and the drilling processes are complex and expensive. At these depths up to 50% of the total drilling cost may be in the last 10% of the well depth. Thus, as wells go deeper it is increasingly important that drillers are able to monitor conditions down-hole such as temperature, pressure, heading, etc. Commercial off-the-shelf electronics are not specified to meet these operating conditions. This is due to problems associated with all aspects of the electronics including the resistors and capacitors. With respect to capacitors, increasing temperature often significantly changes capacitance because of the strong temperature dependence of the dielectric constant. Higher temperatures also affect the equivalent series resistance (ESR). High-temperature capacitors usually have low capacitance values because of these dielectric effects and because packages are kept small to prevent mechanical breakage caused by thermal stresses. Electrolytic capacitors do not operate at temperatures above 150oC due to dielectric breakdown. The development of high-temperature capacitors to be used in a high-pressure high-temperature (HPHT) drilling environment was investigated. These capacitors were based on a previously developed high-voltage hybridized capacitor developed at Giner, Inc. in conjunction with a unique high-temperature electrolyte developed during the course of the program. During this program the feasibility of operating a high voltage hybridized capacitor at 230oC was demonstrated. Capacitor specifications were established in conjunction with potential capacitor users. A method to allow for capacitor operation at both ambient and elevated temperatures was demonstrated. The program was terminated prior to moving into Phase II due to a lack of cost-sharing funds.

John Kosek

2009-06-30T23:59:59.000Z

450

Low Dose Radiation Research Program: Molecular Mechanisms of  

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

Molecular Mechanisms of Radiation-Induced Genomic Instability in Molecular Mechanisms of Radiation-Induced Genomic Instability in Human Cells. Authors: Howard L. Liber1 and Jeffrey L. Schwartz2. Institutions: 1Colorado State University and 2University of Washington. Knowledge of the signal and target through which radiation induces genomic instability, which we propose to investigate herein, will allow us to model effects at low doses. Such knowledge will aid in understanding variations in the induction of this genomic instability, both among cells and among individuals. This information could also lead to more sensitive measures of instability that could yield accurate measures of instability induction at low doses. We have developed an in-vitro cell model, in which radiation-induced chromosome instability develops in a two-stage process.

451

Modes and Mechanisms of Global Water Vapor Variability over the Twentieth Century  

Science Conference Proceedings (OSTI)

The modes and mechanisms of the annual water vapor variations over the twentieth century are investigated based on a newly developed twentieth-century atmospheric reanalysis product. It is found that the leading modes of global water vapor ...

Liping Zhang; Lixin Wu; Bolan Gan

2013-08-01T23:59:59.000Z

452

Mechanical behavior of closed-cell and hollow-sphere metallic foams  

E-Print Network (OSTI)

(cont.) The elastic anisotropy and yield surfaces are fully characterized, and numerical equations are developed to allow the simple evaluation of the effect of geometric and material properties on the mechanical behavior ...

Sanders, Wynn Steven, 1974-

2002-01-01T23:59:59.000Z

453

An improved structural mechanics model for the FRAPCON nuclear fuel performance code  

E-Print Network (OSTI)

In order to provide improved predictions of Pellet Cladding Mechanical Interaction (PCMI) for the FRAPCON nuclear fuel performance code, a new model, the FRAPCON Radial-Axial Soft Pellet (FRASP) model, was developed. This ...

Mieloszyk, Alexander James

2012-01-01T23:59:59.000Z

454

Mechanical characterization and in vivo operation of an implantable drug delivery MEMS device  

E-Print Network (OSTI)

The goal of this thesis was to advance an implantable drug delivery MEMS (MicroElectroMechanical Systems) device developed in our laboratory. This device was designed to locally deliver multiple substances in complex release ...

Li, Yawen, 1972-

2005-01-01T23:59:59.000Z

455

Single-use lancet and capillary loading mechanism for complete blood count point of care device  

E-Print Network (OSTI)

As part of the development of a point of care complete blood count device, I designed a single use lancet integrated with a blood collection mechanism and interface and successfully tested a prototype. High speed video was ...

Zimmerman, Julia C

2011-01-01T23:59:59.000Z

456

A rule-based approach for automated generation of kinetic chemical mechanisms  

Science Conference Proceedings (OSTI)

Several software systems have been developed recently for the automated generation of combustion reactions kinetic mechanisms using different representations of species and reactions and different generation algorithms. In parallel, several software ...

Olivier Bournez; Guy-Marie Cme; Valrie Conraud; Hlne Kirchner; Liliana Ib?nescu

2003-06-01T23:59:59.000Z

457

In vitro models of cartilage degradation following joint injury : mechanical overload, inflammatory cytokines and therapeutic approaches  

E-Print Network (OSTI)

Osteoarthritis (OA) is the most common form of joint disorder. Individuals who have sustained an acute traumatic joint injury are at greater risk for the development of OA. The mechanisms by which injury causes cartilage ...

Lu, Yihong C. S

2010-01-01T23:59:59.000Z

458

Helsinki University of Technology Department of Mechanical Engineering Energy Engineering and Environmental Protection Publications  

E-Print Network (OSTI)

, and neither technology nor markets for plastics recycling have properly developed. The driving force towardsHelsinki University of Technology Department of Mechanical Engineering Energy Engineering Oy Ab support funding (apurahoitus) 2003 Helsinki University of Technology Energy Engineering

Zevenhoven, Ron

459

The Ice CrystalGraupel Collision Charging Mechanism of Thunderstorm Electrification  

Science Conference Proceedings (OSTI)

The ice crystalgraupel collision charging mechanism, which is considered important in thunderstorm electrification, was studied using the newly developed Triple Interaction Facility that allows independent control of the solid, liquid, and vapor ...

Peter Berdeklis; Roland List

2001-09-01T23:59:59.000Z

460

Fall 2011 ME 542 Advanced Fluid Mechanics ENG ME 542 Advanced Fluid Mechanics  

E-Print Network (OSTI)

Fall 2011 ME 542 Advanced Fluid Mechanics ENG ME 542 Advanced Fluid Mechanics Instructor: M. S. Howe EMA 218 mshowe@bu.edu This course is intended to consolidate your knowledge of fluid mechanics specialized courses on fluid mechanics, acoustics and aeroacoustics. Outline syllabus: Equations of motion

Note: This page contains sample records for the topic "development mechanism cdm" 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

Fluid Mechanics Part 1: General (Mechanical) Energy Equation and other topics  

E-Print Network (OSTI)

Fluid Mechanics Part 1: General (Mechanical) Energy Equation and other topics Dene. By writing down a (mechanical) energy conservation equation for this uid element, we nd that: p + u2 2 + gz.g. by a windmill); loss of mechanical energy from friction. All Eq. (1) really says is that the change

Nimmo, Francis

462

Mexico-Development Policy Operation (DPO) Financing | Open Energy  

Open Energy Info (EERE)

Mexico-Development Policy Operation (DPO) Financing Mexico-Development Policy Operation (DPO) Financing Jump to: navigation, search Name Mexico Development Policy Operation (DPO) Financing Agency/Company /Organization France Agency of Development (AFD) Partner AFD Sector Climate Focus Area Non-renewable Energy Topics Finance, Low emission development planning Website http://www.afd.fr/home Country Mexico Central America References Low Emissions Development Strategies[1] Abstract Allows and supports transformative change: Innovative economic thinking Innovative financial mechanisms to support the implementation of climate change strategies Allows and supports transformative change: Innovative economic thinking Innovative financial mechanisms to support the implementation of climate change strategies References

463

Catalyzing Low Carbon Growth in Developing Countries | Open Energy  

Open Energy Info (EERE)

Catalyzing Low Carbon Growth in Developing Countries Catalyzing Low Carbon Growth in Developing Countries Jump to: navigation, search Tool Summary Name: Catalyzing Low Carbon Growth in Developing Countries: Public Finance Mechanisms to scale up private sector investment in climate solutions Agency/Company /Organization: United Nations Environment Programme Sector: Energy Focus Area: Renewable Energy, Energy Efficiency Topics: Finance, Low emission development planning, Policies/deployment programs Resource Type: Guide/manual Website: sefi.unep.org/fileadmin/media/sefi/docs/publications/PublicPrivateWeb. Catalyzing Low Carbon Growth in Developing Countries: Public Finance Mechanisms to scale up private sector investment in climate solutions Screenshot References: Catalyzing Low Carbon Growth in Developing Countries[1]

464

Mauritius-Development Policy Operation (DPO) Financing | Open Energy  

Open Energy Info (EERE)

Mauritius-Development Policy Operation (DPO) Financing Mauritius-Development Policy Operation (DPO) Financing Jump to: navigation, search Name Mauritius Development Policy Operation (DPO) Financing Agency/Company /Organization France Agency of Development (AFD) Partner EC Sector Climate Focus Area Non-renewable Energy Topics Finance, Low emission development planning Website http://www.afd.fr/home Country Mauritius Eastern Africa References Low Emissions Development Strategies [1] Abstract Allows and supports transformative change: Innovative economic thinking Innovative financial mechanisms to support the implementation of climate change strategies Allows and supports transformative change: Innovative economic thinking Innovative financial mechanisms to support the implementation of climate change strategies

465

VAP Development: Initiation, Development, Evaluation, and Release  

SciTech Connect

This white paper provides a plan to formalize the evaluation of newly developed VAPs and a framework for the development of value-added products through four different stages: Initiation, Development, Evaluation, and Release.

Jensen, M; Collis, Fast, J; Flynn, C; Mather, J; McFarlane, S; Monroe, J; Sivaraman, C; Xie, S

2011-02-23T23:59:59.000Z

466

Rock properties in support of geothermal resource development  

DOE Green Energy (OSTI)

Geothermal rock mechanics needs have been defined and subsequently a test system was designed and built for providing appropriate material properties. The development areas identified as requiring rock mechanics were stimulation, reservoir engineering, subsidence prediction, surface exploration and subsurface evaluation, and drilling. The resulting test system provides mechanical, electrical, thermal and physical properties on 2 and 4 inch diameter cores at confining pressures and pore fluid pressures to 200 MPa (30,000 psi) and temperatures to 535/sup 0/C (1000/sup 0/F). The test system development was continued and site specific rock mechanics requirements were identified. (MHR)

Butters, S.W.

1979-01-01T23:59:59.000Z

467

State-of-the-art report on piping fracture mechanics  

Science Conference Proceedings (OSTI)

This report is an in-depth summary of the state-of-the-art in nuclear piping fracture mechanics. It represents the culmination of 20 years of work done primarily in the US, but also attempts to include important aspects from other international efforts. Although the focus of this work was for the nuclear industry, the technology is also applicable in many cases to fossil plants, petrochemical/refinery plants, and the oil and gas industry. In compiling this detailed summary report, all of the equations and details of the analysis procedure or experimental results are not necessarily included. Rather, the report describes the important aspects and limitations, tells the reader where he can go for further information, and more importantly, describes the accuracy of the models. Nevertheless, the report still contains over 150 equations and over 400 references. The main sections of this report describe: (1) the evolution of piping fracture mechanics history relative to the developments of the nuclear industry, (2) technical developments in stress analyses, material property aspects, and fracture mechanics analyses, (3) unresolved issues and technically evolving areas, and (4) a summary of conclusions of major developments to date.

Wilkowski, G.M.; Olson, R.J.; Scott, P.M. [Battelle, Columbus, OH (United States)

1998-01-01T23:59:59.000Z

468

Historical development of the windmill  

DOE Green Energy (OSTI)

Throughout history, windmill technology represented the highest levels of development in those technical fields we now refer to as mechanical engineering, civil engineering, and aerodynamics. This report describes key stages in the technical development of windmills as prime movers -- from antiquity to construction of the well-known Smith-Putnam wind turbine generator of the 1940's, which laid the foundation for modern wind turbines. Subjects covered are windmills in ancient times; the vertical-axis Persian windmill; the horizontal-axis European windmill (including both post mills and tower mills); technology improvements in sails, controls, and analysis; the American farm windmill; the transition from windmills to wind turbines for generating electricity at the end of the 19th century; and wind turbine development in the first half of the 20th century. 43 refs.

Shepherd, D.G.

1990-12-01T23:59:59.000Z

469

Optimal Control of Underactuated Mechanical Systems: A Geometric Approach  

E-Print Network (OSTI)

In this paper, we consider a geometric formalism for optimal control of underactuated mechanical systems. Our techniques are an adaptation of the classical Skinner and Rusk approach for the case of Lagrangian dynamics with higher-order constraints. We study a regular case where it is possible to establish a symplectic framework and, as a consequence, to obtain a unique vector field determining the dynamics of the optimal control problem. These developments will allow us to develop a new class of geometric integrators based on discrete variational calculus.

L. Colombo; D. Martin de Diego; M. Zuccalli

2009-12-10T23:59:59.000Z

470

Mechanism Design without Money via Stable Matching  

E-Print Network (OSTI)

Mechanism design without money has a rich history in social choice literature. Due to the strong impossibility theorem by Gibbard and Satterthwaite, exploring domains in which there exist dominant strategy mechanisms is one of the central questions in the field. We propose a general framework, called the generalized packing problem (\\gpp), to study the mechanism design questions without payment. The \\gpp\\ possesses a rich structure and comprises a number of well-studied models as special cases, including, e.g., matroid, matching, knapsack, independent set, and the generalized assignment problem. We adopt the agenda of approximate mechanism design where the objective is to design a truthful (or strategyproof) mechanism without money that can be implemented in polynomial time and yields a good approximation to the socially optimal solution. We study several special cases of \\gpp, and give constant approximation mechanisms for matroid, matching, knapsack, and the generalized assignment problem. Our result for ge...

Chen, Ning; Lu, Pinyan

2011-01-01T23:59:59.000Z

471

About mechanics of the structured particles  

E-Print Network (OSTI)

The principles of creation of the mechanics of structured particles in the frame of the Newton's laws are considered. The explanation how this mechanics leads to the account of dissipative forces is offered. Why the motions of the system determine by two type of symmetry: symmetry of the system and symmetry of space and how it leads to two types of energy and forces accordingly are discussed. How the mechanics of the structured particles leads to thermodynamics, statistical physics and kinetics are explained.

V. M. Somsikov

2011-03-15T23:59:59.000Z

472

Quantum Mechanics and Closed Timelike Curves  

E-Print Network (OSTI)

General relativity allows solutions exhibiting closed timelike curves. Time travel generates paradoxes and quantum mechanics generalizations were proposed to solve those paradoxes. The implications of self-consistent interactions on acausal region of space-time are investigated. If the correspondence principle is true, then all generalizations of quantum mechanics on acausal manifolds are not renormalizable. Therefore quantum mechanics can only be defined on global hyperbolic manifolds and all general relativity solutions exhibiting time travel are unphysical.

Florin Moldoveanu

2007-04-23T23:59:59.000Z

473

Bohmian particle trajectories contradict quantum mechanics  

E-Print Network (OSTI)

The Bohmian interpretation of quantum mechanics adds particle trajectories to the wave function and ensures that the probability distribution of the particle positions agrees with quantum mechanics at any time. This is not sufficient to avoid contradictions with quantum mechanics. There are correlations between particle positions at different times which cannot be reproduced with real particle trajectories. A simple rearrangement of an experimental test of the Bell-CHSH inequality demonstrates this.

Michael Zirpel

2009-03-23T23:59:59.000Z

474

Applications of Microstructure and Mechanical Properties Prediction ...  

Science Conference Proceedings (OSTI)

Presentation Title, Applications of Microstructure and Mechanical Properties Prediction Technology on CSP Line. Author(s), Wen Tan. On-Site Speaker (

475

1.050 Solid Mechanics, Fall 2002  

E-Print Network (OSTI)

This course introduces students to the fundamental principles and methods of structural mechanics. Topics covered include: static equilibrium, force resultants, support conditions, analysis of determinate planar structures ...

Bucciarelli, Louis

476

Microstructural and Mechanical Properties of the Extruded ?-? ...  

Science Conference Proceedings (OSTI)

Presentation Title, Microstructural and Mechanical Properties of the Extruded ?-? Duplex Phase Brass Cu-40Zn-Ti Alloy. Author(s), Haruhiko Atsumi, Hisashi...

477

Rationales and mechanisms for revitalizing US manufacturing ...  

Science Conference Proceedings (OSTI)

Page 1. Rationales and mechanisms for revitalizing US manufacturing R&D strategies Gregory Tassey US Government 2010 ... R&D R&D 30.2% ...

2013-07-31T23:59:59.000Z

478

Production mechanisms, number concentration, size distribution...  

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

Wiley Online Library (wileyonlinelibrary.com) DOI: 10.1002asl2.441 Meeting Report Production mechanisms, number concentration, size distribution, chemical composition, and...

479

Mechanical Characterization Using The Instrumented Indentation Test  

Science Conference Proceedings (OSTI)

Abstract Scope, The instrumented indentation test(IIT) is being increasingly used to evaluate mechanical characteristics of materials because of its advantages: it...

480

High Resolution Chemical and Mechanical Characterization of ...  

Science Conference Proceedings (OSTI)

Presentation Title, High Resolution Chemical and Mechanical Characterization of Energy Related Materials. Author(s), Michel L Trudeau, Lisa Rodrigue, Ren...

Note: This page contains sample records for the topic "development mechanism cdm" 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.


481

Investigation of The Anisotropic Mechanical Property Phenomenon ...  

Science Conference Proceedings (OSTI)

... Assessment of a Retired Cast Austentic Stainless Steel Hydrogen Reformer Tube .... The Influence of Nb on the Rare Earth Heavy Rail Steel Mechanical...

482

Deformed Geometric Algebra and Supersymmetric Quantum Mechanics  

E-Print Network (OSTI)

Deforming the algebraic structure of geometric algebra on the phase space with a Moyal product leads naturally to supersymmetric quantum mechanics in the star product formalism.

Peter Henselder

2006-09-09T23:59:59.000Z

483

Mechanics of Hierarchical Structures in Bone  

Science Conference Proceedings (OSTI)

We have studied the role of nonbonded interactions between mineral and collagen on collagen mechanics. We have also investigated molecular level...

484

Examples of Analyses [Engineering and Structural Mechanics] ...  

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

Analyses Capabilities Engineering Computation and Design Engineering and Structural Mechanics Overview Areas of Application Examples of Analyses SystemsComponent Design,...

485

Charge-collection mechanisms of heterostructure FETs  

Science Conference Proceedings (OSTI)

Ion- and laser-induced charge-collection transients measured for AlGaAs/InGaAs heterostructure insulated-gate field-effect transistors (HIGFETs) reveal evidence for two mechanisms of enhanced charge collection: a channel-modulation mechanism that dominates the charge-collection processes at positive gate biases and can persist for several nanoseconds; and a parasitic bipolar transistor mechanism that shows a sensitive dependence on the density of free carriers injected into the device, and is complete within a few hundred picoseconds. The results reinforce the utility of the laser technique for investigating the charge-collection mechanisms of semiconductor devices.

McMorrow, D.; Melinger, J.S.; Thantu, N.; Campbell, A.B. (Naval Research Lab., Washington, DC (United States)); Weatherford, T.R.; Knudson, A.R.; Tran, L.H. (SFA, Inc., Landover, MD (United States)); Peczalski, A. (Honeywell, Inc., Bloomington, MN (United States))

1994-12-01T23:59:59.000Z

486

Modeling and Experimental Validation of Multiscale Mechanical ...  

Science Conference Proceedings (OSTI)

Jul 31, 2012 ... Jonathan Zimmerman, Sandia National Laboratories. Scope, The mechanical behavior of a material has a strong and complex connection to its...

487

Nanoscale Mechanics by Contact Resonance Atomic Force ...  

Science Conference Proceedings (OSTI)

... mechanical tests (eg tensile tests observed inside a ... CR-AFM requires no additional testing device or ... 109, 929, 2009), AlN NTs (Nanotechnology 20 ...

2013-07-08T23:59:59.000Z

488

Mechanical Behavior of Tempered Martensitic Steels for ...  

Science Conference Proceedings (OSTI)

Presentation Title, Mechanical Behavior of Tempered Martensitic Steels for Ultrasupercritical Steam Applications. Author(s), Jeffrey A. Hawk, Paul D. Jablonski,...

489

Giant Protease TPP II's Structure, Mechanism Uncovered  

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

Giant Protease TPP II's Structure, Mechanism Uncovered Print Tripeptidyl peptidase II (TPP II), the largest known eukaryotic enzyme that breaks down proteins (a protease), is...

490

MECHANICALLY ROBUST, ELECTRICALLY CONDUCTIVE ULTRALOW-DENSITY ...  

A method of making a mechanically robust, electrically conductive ultralow-density carbon nanotube-based aerogel, including the steps of dispersing nanotubes in an ...

491

LANL: Mechanical testing and modeling in MST  

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

MST For information on mechanical testing in MST Division contact: Mark Bourke, bourke@lanl.gov Materials Science and Technology Division Facility Focus Materials Science and...

492

Mechanical Behavior of Bulk Nanocrystalline Copper Alloys ...  

Science Conference Proceedings (OSTI)

Presentation Title, Mechanical Behavior of Bulk Nanocrystalline Copper Alloys Produced by High Energy Ball Milling. Author(s), Hamed Bahmanpour, Khaled M.

493

AEDG Recommendations -- Mechanical Overview | Building Energy...  

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

provides an overview of the mechanical recommendations provided in the ASHRAE Advanced Energy Design Guides (30% Series). Estimated Length: 40 minutes Presenters: Paul...

494

Mechanical Reliability Study on Porous Brittle Materials  

Science Conference Proceedings (OSTI)

Presentation Title, Mechanical Reliability Study on Porous Brittle Materials. Author(s), Xiaofeng Fan, Eldon D Case, Fei Ren, Yutian Shu, Melissa J Baumann .