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Sample records for type ii portland

  1. Role of amyloids in type II diabetes

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    July » Role of amyloids in type II diabetes Role of amyloids in type II diabetes A collaboration between Los Alamos, Yale University, and Worcester Polytechnic Institute published research that sheds light on pathological properties of amyloids identified in type II diabetes. July 6, 2016 Schematic of human amyloid (blue) partially removing a lipid bilayer (model membrane) on a solid support. Schematic of human amyloid (blue) partially removing a lipid bilayer (model membrane) on a solid

  2. City of Portland - Green Building Policy and LEED Certification...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Website http:www.portlandonline.combpsindex.cfm?c41701 State Oregon Program Type Energy Standards for Public Buildings Summary In 2001, the City of Portland adopted a...

  3. Solar Policy Environment: Portland | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Portland Solar Policy Environment: Portland This document outlines the policies in place affecting solar deployment. City of Portland's Solar Now Program will pursue solar market ...

  4. Portland Data Dashboard | Department of Energy

    Energy Savers [EERE]

    Data Dashboard Portland Data Dashboard The data dashboard for Portland, Oregon, a partner in the Better Buildings Neighborhood Program. Portland Data Dashboard (301.34 KB) More ...

  5. EA-97-C Portland General Electric | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    C Portland General Electric EA-97-C Portland General Electric Order authorizing Portland General Electric to export electic energy to Canada PDF icon EA-97-C Portland General ...

  6. Category:Portland, OR | Open Energy Information

    Open Energy Info (EERE)

    72 KB SVSecondarySchool Portland OR PacifiCorp (Oregon).png SVSecondarySchool Port... 70 KB SVSmallHotel Portland OR PacifiCorp (Oregon).png SVSmallHotel Portland ... 69...

  7. Portland, Maine: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Portland, Maine: Energy Resources (Redirected from Portland, ME) Jump to: navigation, search Equivalent URI DBpedia Coordinates 43.661471, -70.2553259 Show Map Loading map......

  8. Investing in Their Future: Portlands Purchase and Conversion...

    Energy Savers [EERE]

    round out the inventory. In all, there were more than 60 combinations of fixtures and poles installed around the city prior to the lighting conversion. The Portland Bureau of...

  9. Portland State University Shattuck Hall

    High Performance Buildings Database

    Portland, OR Portland State's Shattuck hall was originally constructed as an elementary school in 1915. In 2007 the university undertook extensive renovations of the building to bring it up to current seismic requirements. In addition to structural improvements, the design team was able to upgraded the building's aging mechanical and electrical systems, upgrade plumbing, and restore the large light wells that bring daylight into the U-shaped building. The resulting building houses Portland State's Architecture department, where students are able to learn from the exposed building systems.

  10. Climate Action Champions: Portland, OR

    Broader source: Energy.gov [DOE]

    In 1993, Portland became the first local government in the U.S. to adopt a plan for reducing carbon emissions. The current Portland Climate Action Plan was adopted by Portland City Council in 2009. Portland’s overarching climate objective is to reduce emissions to 80 percent below 1990 levels by 2050, with an interim goal of a 40 percent reduction by 2030. Portland has reduced emissions by 14 percent as of 2013, through a combination of improved efficiency in buildings, appliances, and vehicles; a shift to lower-carbon energy sources; a focus on a compact urban development pattern; and a rise in walking, biking and transit made possible by shifts in infrastructure investment.

  11. Portland Summary of Reported Data | Department of Energy

    Energy Savers [EERE]

    Summary of Reported Data Portland Summary of Reported Data Summary of data reported by Better Buildings Neighborhood Program partner Portland, Oregon. Portland Summary of Reported ...

  12. Spokane Seattle Portland Y

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Spokane Seattle Portland Y a k i m a R i d g e Um tan um Rid ge R a t t l e s n a k e M o u n t a i n G a b l e M o u n t a i n G a b l e B u t t e Sa dd le M ou nt a in s H w y . 2 4 0 Hwy. 24 Hw y. 243 H w y . 2 4 4 0 0 4 0 0 2 0 0 2 0 0 6 0 0 6 0 0 1106.1 m 4 0 0 4 0 0 6 0 0 6 0 0 821.7 m 2 0 0 2 0 0 2 0 0 2 0 0 2 0 0 2 0 0 2 0 0 2 0 0 W h i t e B l u f f s 2 0 0 2 0 0 400 400 200 200 600 600 6 0 0 6 0 0 W h i t e B l u f f s WB10 Ponds S a d d le M o u n ta in L a k e C o l u m b i a R i v e

  13. Serum markers for type II diabetes mellitus

    DOE Patents [OSTI]

    Metz, Thomas O; Qian, Wei-Jun; Jacobs, Jon M; Polpitiya, Ashoka D; Camp, II, David G; Smith, Richard D

    2014-03-18

    A method for identifying persons with increased risk of developing type 2 diabetes mellitus utilizing selected biomarkers described hereafter either alone or in combination. The present invention allows for broad based, reliable, screening of large population bases and provides other advantages, including the formulation of effective strategies for characterizing, archiving, and contrasting data from multiple sample types under varying conditions.

  14. SSL Demonstration: NE Cully Boulevard, Portland, OR

    SciTech Connect (OSTI)

    2012-11-01

    GATEWAY program report brief summarizing an SSL street lighting demonstration in a residential area of Portland, OR

  15. National Electric Transmission Congestion Study - Portland Workshop |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy Portland Workshop National Electric Transmission Congestion Study - Portland Workshop On December 13, 2011, DOE hosted a regional pre-study workshop in Portland, OR to receive input and suggestions concerning the National Electric Transmission Congestion Study. The workshop flyer, agenda, presentations, and full transcript are available below. National Electric Transmission Congestion Study Western Workshops (85.19 KB) 12-13-11 CONGESTION WORKSHOP AGENDA - PORTLAND

  16. Portland HQ Letterhead

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    SU-16 Equipment technology and office automation IR-15 Equipment types IR-15 Equipment, electronic communications IR-16 Equipment, excess SU-14-15 Equipment, generation RP-21-23...

  17. Comparing the host galaxies of type Ia, type II, and type Ibc supernovae

    SciTech Connect (OSTI)

    Shao, X.; Liang, Y. C.; Chen, X. Y.; Zhong, G. H.; Deng, L. C.; Zhang, B.; Shi, W. B.; Zhou, L.; Dennefeld, M.; Hammer, F.; Flores, H. E-mail: ycliang@bao.ac.cn

    2014-08-10

    We compare the host galaxies of 902 supernovae (SNe), including SNe Ia, SNe II, and SNe Ibc, which are selected by cross-matching the Asiago Supernova Catalog with the Sloan Digital Sky Survey (SDSS) Data Release 7. We selected an additional 213 galaxies by requiring the light fraction of spectral observations to be >15%, which could represent well the global properties of the galaxies. Among these 213 galaxies, 135 appear on the Baldwin-Phillips-Terlevich diagram, which allows us to compare the hosts in terms of whether they are star-forming (SF) galaxies, active galactic nuclei (AGNs; including composites, LINERs, and Seyfert 2s) or absorption-line galaxies (Absorps; i.e., their related emission lines are weak or non-existent). The diagrams related to the parameters D{sub n}(4000), H?{sub A}, stellar masses, star formation rates (SFRs), and specific SFRs for the SNe hosts show that almost all SNe II and most of the SNe Ibc occur in SF galaxies, which have a wide range of stellar masses and low D{sub n}(4000). The SNe Ia hosts as SF galaxies following similar trends. A significant fraction of SNe Ia occurs in AGNs and absorption-line galaxies, which are massive and have high D{sub n}(4000). The stellar population analysis from spectral synthesis fitting shows that the hosts of SNe II have a younger stellar population than hosts of SNe Ia. These results are compared with those of the 689 comparison galaxies where the SDSS fiber captures less than 15% of the total light. These comparison galaxies appear biased toward higher 12+log(O/H) (?0.1 dex) at a given stellar mass. Therefore, we believe the aperture effect should be kept in mind when the properties of the hosts for different types of SNe are discussed.

  18. Portland Diversifying Weatherization Workforce | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Portland Diversifying Weatherization Workforce Portland Diversifying Weatherization Workforce May 6, 2010 - 4:45pm Addthis Stephen Graff Former Writer & editor for Energy Empowers, EERE As Recovery Act funds started flowing towards businesses in Oregon last year, stakeholders in Portland wanted to make sure some of the money landed in the hands of women, minorities and other underrepresented groups. A diverse group in itself, the stakeholders-made up of city officials, labor unions, civil

  19. Portland Company Weatherizes, Preserves Historic Home

    Office of Energy Efficiency and Renewable Energy (EERE)

    Roy and Kim Fox, owners of a stunning Victorian home in Portland, Oregon, show local residents how to achieve energy efficiency in historic homes without sacrificing vintage character.

  20. Portland, Maine: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Portland, Maine: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 43.661471, -70.2553259 Show Map Loading map... "minzoom":false,"mappingservice...

  1. Portland, Connecticut: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Incorporated place and minor civil division population dataset (All States, all geography) Retrieved from "http:en.openei.orgwindex.php?titlePortland,Connecticut&oldid...

  2. Portland, Oregon: Solar in Action (Brochure), Solar America Cities...

    Office of Environmental Management (EM)

    Portland, Oregon: Solar in Action (Brochure), Solar America Cities, Energy Efficiency & Renewable Energy (EERE) Portland, Oregon: Solar in Action (Brochure), Solar America Cities, ...

  3. Portland Street Lighting Report (August 2015) | Department of...

    Energy Savers [EERE]

    Portland Street Lighting Report (August 2015) Portland Street Lighting Report (August 2015) 2015gateway-msslcportland.pdf (840.03 KB) More Documents & Publications OCTOBER 2015 ...

  4. Solar Array on Portland Water Bureau Meter Shop

    Broader source: Energy.gov [DOE]

    In this photograph, the 12-kilowatt photovoltaic (PV) array is the largest system entirely owned by the City of Portland. Portland is a Solar America City.

  5. Better Buildings: Workforce: Spotlight on Portland, Oregon: Making...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Workforce: Spotlight on Portland, Oregon: Making the Program Work for Contractors Better Buildings: Workforce: Spotlight on Portland, Oregon: Making the Program Work for ...

  6. City of Portland- Streamlined Building Permits for Residential Solar Systems

    Broader source: Energy.gov [DOE]

    The City of Portland's Bureau of Development Services (BDS) developed a streamlined permitting process for residential solar energy system installations. The City of Portland has staff at the...

  7. EA-97-B Portland General Electric Company | Department of Energy

    Energy Savers [EERE]

    icon EA-97-B Portland General Electric Company More Documents & Publications EA-380 Freeport Commodities EA-97-D Portland General Electric Company EA-196-A Minnesota Power, Sales

  8. Portland, Oregon Climate-Friendly Infrastructure:

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Portland, Oregon Climate-Friendly Infrastructure: Tilikum Crossing, Bridge of the People A White House Climate Action Champions Case Study INDEX Executive Summary...............................2 Climate Action Champion.....................2 Project Spotlight.................................3-5 Co-benefits.............................................6 Challenges and lessons learned...........6 Resources & Contacts............................7 2 Executive Summary The City of Portland's 2015

  9. Portland Public School Children Move with Propane

    SciTech Connect (OSTI)

    Not Available

    2004-04-01

    This 2-page Clean Cities fact sheet describes the use of propane as a fuel source for Portland Public Schools' fleet of buses. It includes information on the history of the program, along with contact information for the local Clean Cities Coordinator and Portland Public Schools.

  10. Clean Energy Works Portland: A Model For Retrofit Projects

    Broader source: Energy.gov [DOE]

    How a new weatherization organization in Portland, Oregon has already managed to weatherize 250 homes.

  11. Better Buildings: Workforce: Spotlight on Portland, Oregon: Making the

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Program Work for Contractors | Department of Energy Workforce: Spotlight on Portland, Oregon: Making the Program Work for Contractors Better Buildings: Workforce: Spotlight on Portland, Oregon: Making the Program Work for Contractors Better Buildings: Workforce: Spotlight on Portland, Oregon: Making the Program Work for Contractors. Spotlight on Portland (536.02 KB) More Documents & Publications Better Buildings - Spotlight on Portland, Oregon; Financing and Incetntives: Use Incentives

  12. University of Portland Google Vernier Software + Technology...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    sponsors for their support of the bpa science bowl University of Portland Google Vernier Software + Technology Schweitzer Engineering Laboratories B O N N E V I L L E P O W E...

  13. Portland General Electric- Heat Pump Rebate Program

    Office of Energy Efficiency and Renewable Energy (EERE)

    Portland General Electric's (PGE) Heat Pump Rebate Program offers residential customers a $200 rebate for an energy-efficient heat pump installed to PGE’s standards by a PGE-approved contractor....

  14. Simvastatin enhances bone morphogenetic protein receptor type II expression

    SciTech Connect (OSTI)

    Hu Hong; Sung, Arthur; Zhao, Guohua; Shi, Lingfang; Qiu Daoming; Nishimura, Toshihiko; Kao, Peter N. . E-mail: peterkao@stanford.edu

    2006-01-06

    Statins confer therapeutic benefits in systemic and pulmonary vascular diseases. Bone morphogenetic protein (BMP) receptors serve essential signaling functions in cardiovascular development and skeletal morphogenesis. Mutations in BMP receptor type II (BMPR2) are associated with human familial and idiopathic pulmonary arterial hypertension, and pathologic neointimal proliferation of vascular endothelial and smooth muscle cells within small pulmonary arteries. In severe experimental pulmonary hypertension, simvastatin reversed disease and conferred a 100% survival advantage. Here, modulation of BMPR2 gene expression by simvastatin is characterized in human embryonic kidney (HEK) 293T, pulmonary artery smooth muscle, and lung microvascular endothelial cells (HLMVECs). A 1.4 kb BMPR2 promoter containing Egr-1 binding sites confers reporter gene activation in 293T cells which is partially inhibited by simvastatin. Simvastatin enhances steady-state BMPR2 mRNA and protein expression in HLMVEC, through posttranscriptional mRNA stabilization. Simvastatin induction of BMPR2 expression may improve BMP-BMPR2 signaling thereby enhancing endothelial differentiation and function.

  15. 20th Annual Green Chemistry & Engineering Conference (Portland...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    th Annual Green Chemistry & Engineering Conference (Portland, OR) 20th Annual Green Chemistry & Engineering Conference (Portland, OR) Tue, Jun 14, 2016 2:30pm 14:30 Thu, Jun 16, ...

  16. EA-97-D Portland General Electric Company | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    D Portland General Electric Company EA-97-D Portland General Electric Company Order authorizing PGE to export electric energy to Canada. PDF icon EA-97-D PGE (CN).pdf More ...

  17. Promoting High-Performance Homes to Portland Real Estate Pros

    Broader source: Energy.gov [DOE]

    Two Portland, Oregon-based Better Buildings Residential Network members—the City of Portland Bureau of Planning and Sustainability and Clean Energy Works (CEW)—are supporting Earth Advantage’s...

  18. Federal Utility Partnership Working Group: Welcome to Portland

    Broader source: Energy.gov [DOE]

    Presentation covers welcoming attendees to Portland at the Spring 2011 Federal Utility Partnership Working Group (FUPWG) meeting.

  19. Portland Summary of Reported Data | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Summary of Reported Data Portland Summary of Reported Data Summary of data reported by Better Buildings Neighborhood Program partner Portland, Oregon. Portland Summary of Reported Data (873.83 KB) More Documents & Publications Better Buildings Neighborhood Program Summary of Reported Data From July 1, 2010 - September 30, 2013 Energize New York Summary of Reported Data Maryland Summary of Reported Data

  20. Portland, Oregon: Solar in Action (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2011-10-01

    This brochure provides an overview of the challenges and successes of Portland, OR, a 2007 Solar America City awardee, on the path toward becoming a solar-powered community. Accomplishments, case studies, key lessons learned, and local resource information are given.

  1. Portland Advancing Green Image With Solar Installs

    Broader source: Energy.gov [DOE]

    A quick Internet search reveals that many sources consider Portland, Ore., to be one of the most green-minded cities in the United States. But large upfront costs have been a barrier for citizens looking to install solar power systems in the past. Now, a neighborhood solar initiative is helping communities organize to get solar discounts, meaning the city could become even greener.

  2. QER- Comment of Portland General Electric

    Broader source: Energy.gov [DOE]

    Thanks, Karen. As per our email exchange earlier this week, we're attaching prepared comments from PGE to support the statement Jim Piro offered at the QER public meeting in Portland this past summer. We appreciate your flexibility on the submission deadline! Please let me know if you need anything else from us.

  3. Ruptured Aortic Aneurysm From Late Type II Endoleak Treated by Transarterial Embolization

    SciTech Connect (OSTI)

    Gunasekaran, Senthil; Funaki, Brian Lorenz, Jonathan

    2013-02-15

    Endoleak is the most common complication after endovascular aneurysm repair. The most common type of endoleak, a type II endoleak, typically follows a benign course and is only treated when associated with increasing aneurysm size. In this case report, we describe a ruptured abdominal aortic aneurysm due to a late, type II endoleak occurring 10 years after endovascular aneurysm repair that was successfully treated by transarterial embolization.

  4. Portland, Oregon: Solar in Action (Brochure), Solar America Cities, Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Efficiency & Renewable Energy (EERE) | Department of Energy Portland, Oregon: Solar in Action (Brochure), Solar America Cities, Energy Efficiency & Renewable Energy (EERE) Portland, Oregon: Solar in Action (Brochure), Solar America Cities, Energy Efficiency & Renewable Energy (EERE) This brochure provides an overview of the challenges and successes of Portland, OR, a 2007 Solar America City awardee, on the path toward becoming a solar-powered community. Accomplishments, case

  5. Better Buildings - Spotlight on Portland, Oregon; Financing and

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Incetntives: Use Incentives to Get Attention and Encourage Deep Savings | Department of Energy - Spotlight on Portland, Oregon; Financing and Incetntives: Use Incentives to Get Attention and Encourage Deep Savings Better Buildings - Spotlight on Portland, Oregon; Financing and Incetntives: Use Incentives to Get Attention and Encourage Deep Savings Better Buildings - Spotlight on Portland, Oregon; Financing and Incentives: Use Incentives to Get Attention and Encourage Deep Savings. Spotlight

  6. Better Buildings - Spotlight on Portland, Oregon; Financing and...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    to Get Attention and Encourage Deep Savings Better Buildings - Spotlight on Portland, Oregon; Financing and Incetntives: Use Incentives to Get Attention and Encourage ...

  7. South Portland, Maine: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    South Portland, Maine: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 43.6414716, -70.2408811 Show Map Loading map... "minzoom":false,"mapping...

  8. Stabilizing coal-water mixtures with portland cement

    DOE Patents [OSTI]

    Steinberg, Meyer; Krishna, Coimbatore R.

    1986-01-01

    Coal-water mixes stabilized by the addition of portland cement which may additionally contain retarding carbohydrates, or borax are described.

  9. Stabilizing coal-water mixtures with Portland cement

    DOE Patents [OSTI]

    Steinberg, M.; Krishna, C.R.

    1984-10-17

    Coal-water mixes stabilized by the addition of Portland cement which may additionally contain retarding carbohydrates, or borax are described. 1 tab.

  10. Type Ia supernova rate studies from the SDSS-II Supernova Study

    SciTech Connect (OSTI)

    Dilday, Benjamin

    2008-08-01

    The author presents new measurements of the type Ia SN rate from the SDSS-II Supernova Survey. The SDSS-II Supernova Survey was carried out during the Fall months (Sept.-Nov.) of 2005-2007 and discovered ~ 500 spectroscopically confirmed SNe Ia with densely sampled (once every ~ 4 days), multi-color light curves. Additionally, the SDSS-II Supernova Survey has discovered several hundred SNe Ia candidates with well-measured light curves, but without spectroscopic confirmation of type. This total, achieved in 9 months of observing, represents ~ 15-20% of the total SNe Ia discovered worldwide since 1885. The author describes some technical details of the SN Survey observations and SN search algorithms that contributed to the extremely high-yield of discovered SNe and that are important as context for the SDSS-II Supernova Survey SN Ia rate measurements.

  11. DIAGNOSTICS ON THE SOURCE PROPERTIES OF A TYPE II RADIO BURST WITH SPECTRAL BUMPS

    SciTech Connect (OSTI)

    Feng, S. W.; Chen, Y.; Kong, X. L.; Li, G.; Song, H. Q.; Feng, X. S.; Guo, Fan

    2013-04-10

    In recent studies, we proposed that source properties of type II radio bursts can be inferred through a causal relationship between the special shape of the type II dynamic spectrum (e.g., bump or break) and simultaneous extreme ultraviolet (EUV)/white light imaging observations (e.g., CME-shock crossing streamer structures). As a further extension of these studies, in this paper we examine the coronal mass ejection (CME) event on 2007 December 31 associated with a multiple type II radio burst. We identify the presence of two spectral bump features on the observed dynamic spectrum. By combining observational analyses of the radio spectral observations and the EUV-white light imaging data, we conclude that the two spectral bumps result from a CME-shock propagating across dense streamers on the southern and northern sides of the CME. It is inferred that the corresponding two type II emissions originate separately from the two CME-shock flanks where the shock geometries are likely quasi-perpendicular or oblique. Since the emission lanes are bumped as a whole within a relatively short time, it suggests that the type II radio bursts with bumps of this study are emitted from spatially confined sources (with a projected lateral dimension smaller than 0.05-0.1 R{sub Sun} at a fundamental frequency level of 20-30 MHz).

  12. Excitonic transitions in highly efficient (GaIn)As/Ga(AsSb) type-II quantum-well structures

    SciTech Connect (OSTI)

    Gies, S.; Kruska, C.; Berger, C.; Hens, P.; Fuchs, C.; Rosemann, N. W.; Veletas, J.; Stolz, W.; Koch, S. W.; Heimbrodt, W.; Ruiz Perez, A.; Hader, J.; Moloney, J. V.

    2015-11-02

    The excitonic transitions of the type-II (GaIn)As/Ga(AsSb) gain medium of a “W”-laser structure are characterized experimentally by modulation spectroscopy and analyzed using microscopic quantum theory. On the basis of the very good agreement between the measured and calculated photoreflectivity, the type-I or type-II character of the observable excitonic transitions is identified. Whereas the energetically lowest three transitions exhibit type-II character, the subsequent energetically higher transitions possess type-I character with much stronger dipole moments. Despite the type-II character, the quantum-well structure exhibits a bright luminescence.

  13. TEMPORAL SPECTRAL SHIFT AND POLARIZATION OF A BAND-SPLITTING SOLAR TYPE II RADIO BURST

    SciTech Connect (OSTI)

    Du, Guohui; Chen, Yao; Lv, Maoshui; Kong, Xiangliang; Feng, Shiwei; Guo, Fan; Li, Gang

    2014-10-01

    In many type II solar radio bursts, the fundamental and/or the harmonic branches of the bursts can split into two almost parallel bands with similar spectral shapes and frequency drifts. However, the mechanisms accounting for this intriguing phenomenon remain elusive. In this study, we report a special band-splitting type II event in which spectral features appear systematically earlier on the upper band (with higher frequencies) than on the lower band (with lower frequencies) by several seconds. Furthermore, the emissions carried by the splitting band are moderately polarized with the left-hand polarized signals stronger than the right-hand ones. The polarization degree varies in a range of 0.3 to 0.6. These novel observational findings provide important constraints on the underlying physical mechanisms of band-splitting of type II radio bursts.

  14. COLLOQUIUM: Type II Solar Radio Bursts: From Fundamental Plasma Physics to

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Space Weather Research | Princeton Plasma Physics Lab April 8, 2015, 4:15pm to 5:30pm Colloquia MBG Auditorium COLLOQUIUM: Type II Solar Radio Bursts: From Fundamental Plasma Physics to Space Weather Research Professor Iver Cairns University of Sydney - School of Physics Presentation: File WC08APR2015_ICairns_4.pptx For over 60 years type II solar radio bursts have defied detailed quantitative explanation, despite their promise for predicting space weather at Earth and their status as the

  15. Ultrafast dynamics of type-II GaSb/GaAs quantum dots

    SciTech Connect (OSTI)

    Komolibus, K.; Piwonski, T.; Gradkowski, K.; Reyner, C. J.; Liang, B.; Huffaker, D. L.; Huyet, G.; Houlihan, J.

    2015-01-19

    In this paper, room temperature two-colour pump-probe spectroscopy is employed to study ultrafast carrier dynamics in type-II GaSb/GaAs quantum dots. Our results demonstrate a strong dependency of carrier capture/escape processes on applied reverse bias voltage, probing wavelength and number of injected carriers. The extracted timescales as a function of both forward and reverse bias may provide important information for the design of efficient solar cells and quantum dot memories based on this material. The first few picoseconds of the dynamics reveal a complex behaviour with an interesting feature, which does not appear in devices based on type-I materials, and hence is linked to the unique carrier capture/escape processes possible in type-II structures.

  16. Transcending Portland Cement with 100 percent fly ash concrete

    SciTech Connect (OSTI)

    Cross, D.; Akin, M.; Stephens, J.; Cuelh, E.

    2009-07-01

    The use of concrete, made with 100% fly ash and no Portland cement, in buildings at the Transportation Institute in Bozeman, MT, USA, is described. 3 refs., 7 figs.

  17. DOE Publishes GATEWAY Report on Portland's LED Streetlight Conversion...

    Broader source: Energy.gov (indexed) [DOE]

    matters, and the Portland Bureau of Transportation was an early investigator of LED street lighting and one of the first public agencies to join DOE's Municipal Solid-State Street ...

  18. Spectroscopic evidence for a type II Weyl semimetallic state in MoTe2

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Huang, Lunan; McCormick, Timothy M.; Ochi, Masayuki; Zhao, Zhiying; Suzuki, Michi -To; Arita, Ryotaro; Wu, Yun; Mou, Daixiang; Cao, Huibo; Yan, Jiaqiang; et al

    2016-07-11

    In a type I Dirac or Weyl semimetal, the low-energy states are squeezed to a single point in momentum space when the chemical potential μ is tuned precisely to the Dirac/Weyl point1, 2, 3, 4, 5, 6. Recently, a type II Weyl semimetal was predicted to exist, where the Weyl states connect hole and electron bands, separated by an indirect gap7, 8, 9, 10. This leads to unusual energy states, where hole and electron pockets touch at the Weyl point. Here we present the discovery of a type II topological Weyl semimetal state in pure MoTe2, where two sets ofmore » Weyl points (W±2 , W±3) exist at the touching points of electron and hole pockets and are located at different binding energies above EF. Using angle-resolved photoemission spectroscopy, modelling, density functional theory and calculations of Berry curvature, we identify the Weyl points and demonstrate that they are connected by different sets of Fermi arcs for each of the two surface terminations. We also find new surface ‘track states’ that form closed loops and are unique to type II Weyl semimetals. Lastly, this material provides an exciting, new platform to study the properties of Weyl fermions.« less

  19. Characterizing the V-band light-curves of hydrogen-rich type II supernovae

    SciTech Connect (OSTI)

    Anderson, Joseph P.; González-Gaitán, Santiago; Hamuy, Mario; Gutiérrez, Claudia P.; Antezana, Roberto; De Jaeger, Thomas; Förster, Francisco; González, Luis; Stritzinger, Maximilian D.; Contreras, Carlos; Olivares E, Felipe; Phillips, Mark M.; Campillay, Abdo; Castellón, Sergio; Hsiao, Eric; Schulze, Steve; Bolt, Luis; Folatelli, Gastón; Freedman, Wendy L.; Krzemiński, Wojtek; and others

    2014-05-01

    We present an analysis of the diversity of V-band light-curves of hydrogen-rich type II supernovae. Analyzing a sample of 116 supernovae, several magnitude measurements are defined, together with decline rates at different epochs, and time durations of different phases. It is found that magnitudes measured at maximum light correlate more strongly with decline rates than those measured at other epochs: brighter supernovae at maximum generally have faster declining light-curves at all epochs. We find a relation between the decline rate during the 'plateau' phase and peak magnitudes, which has a dispersion of 0.56 mag, offering the prospect of using type II supernovae as purely photometric distance indicators. Our analysis suggests that the type II population spans a continuum from low-luminosity events which have flat light-curves during the 'plateau' stage, through to the brightest events which decline much faster. A large range in optically thick phase durations is observed, implying a range in progenitor envelope masses at the epoch of explosion. During the radioactive tails, we find many supernovae with faster declining light-curves than expected from full trapping of radioactive emission, implying low mass ejecta. It is suggested that the main driver of light-curve diversity is the extent of hydrogen envelopes retained before explosion. Finally, a new classification scheme is introduced where hydrogen-rich events are typed as simply 'SN II' with an 's {sub 2}' value giving the decline rate during the 'plateau' phase, indicating its morphological type.

  20. NREL: Technology Deployment - Portland, Oregon Grassroots Solarize Campaign

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Drives Down Solar Prices 30% Portland, Oregon Grassroots Solarize Campaign Drives Down Solar Prices 30% News Watch a video on the Solarize movement Pallets of PV: Communities Purchase Solar and Drive Down Costs Together Solarize Portland Solarize New York Solarize Connecticut Solarize Massachusetts Solarize Washington Publications The Solarize Guidebook: A Community Guide to Collective Purchasing of Residential PV Systems Powering Your Community With Solar: Overcoming Market and

  1. A solar type II radio burst from coronal mass ejection-coronal ray interaction: Simultaneous radio and extreme ultraviolet imaging

    SciTech Connect (OSTI)

    Chen, Yao; Du, Guohui; Feng, Shiwei; Kong, Xiangliang; Wang, Bing; Feng, Li; Guo, Fan; Li, Gang

    2014-05-20

    Simultaneous radio and extreme ultraviolet (EUV)/white-light imaging data are examined for a solar type II radio burst occurring on 2010 March 18 to deduce its source location. Using a bow-shock model, we reconstruct the three-dimensional EUV wave front (presumably the type-II-emitting shock) based on the imaging data of the two Solar TErrestrial RElations Observatory spacecraft. It is then combined with the Nanay radio imaging data to infer the three-dimensional position of the type II source. It is found that the type II source coincides with the interface between the coronal mass ejection (CME) EUV wave front and a nearby coronal ray structure, providing evidence that the type II emission is physically related to the CME-ray interaction. This result, consistent with those of previous studies, is based on simultaneous radio and EUV imaging data for the first time.

  2. Photoluminescence studies of type-II CdSe/CdTe superlattices

    SciTech Connect (OSTI)

    Li Jingjing; Johnson, Shane R.; Wang Shumin; Ding Ding; Ning Cunzheng; Zhang Yonghang; Yin Leijun; Skromme, B. J.; Liu Xinyu; Furdyna, Jacek K.

    2012-08-06

    CdSe/CdTe type-II superlattices grown on GaSb substrates by molecular beam epitaxy are studied using time-resolved and steady-state photoluminescence (PL) spectroscopy at 10 K. The relatively long carrier lifetime of 188 ns observed in time-resolved PL measurements shows good material quality. The steady-state PL peak position exhibits a blue shift with increasing excess carrier concentration. Self-consistent solutions of the Schroedinger and Poisson equations show that this effect can be explained by band bending as a result of the spatial separation of electrons and holes, which is critical confirmation of a strong type-II band edge alignment between CdSe and CdTe.

  3. Thermodynamic scaling functions in the critical region of type-II superconductors

    SciTech Connect (OSTI)

    Tesanovic, Z. ); Andreev, A.V. Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 01239 L. D. Landau Institute for Theoretical Physics, Moscow )

    1994-02-01

    A recently proposed nonperturbative method for evaluation of the thermodynamic scaling functions in the nominal critical region of quasi-two-dimensional type-II superconductors is generalized and extended to arbitrary type-II systems. It is found that, in general, layered superconductors do not exhibit single-parameter scaling except in two opposite limits corresponding to two-dimensional (2D) and (an) isotropic 3D systems. Explicit, closed-form expressions for the scaling functions are constructed in these two limits. The results are found to be in good agreement with experiments and Monte Carlo simulations. The limits on the applicability of the Landau level description of fluctuations are also discussed.

  4. H{sub ?} SPECTRAL DIVERSITY OF TYPE II SUPERNOVAE: CORRELATIONS WITH PHOTOMETRIC PROPERTIES

    SciTech Connect (OSTI)

    Gutirrez, Claudia P.; Hamuy, Mario; Gonzlez-Gaitn, Santiago [Millennium Institute of Astrophysics, Casilla 36-D, Santiago (Chile); Anderson, Joseph P. [Departamento de Astronoma, Universidad de Chile, Casilla 36-D, Santiago (Chile); Folatelli, Gastn [Institute for the Physics and Mathematics of the Universe (IPMU), University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8583 (Japan); Morrell, Nidia I.; Phillips, Mark M.; Thomas-Osip, Joanna [Carnegie Observatories, Las Campanas Observatory, Casilla 601, La Serena (Chile); Stritzinger, Maximilian D. [Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C (Denmark); McCarthy, Patrick [Observatories of the Carnegie Institution for Science, Pasadena, CA 91101 (United States); Suntzeff, Nicholas B., E-mail: cgutierr@das.uchile.cl [George P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy, Department of Physics and Astronomy, Texas A and M University, College Station, TX 77843 (United States)

    2014-05-10

    We present a spectroscopic analysis of the H{sub ?} profiles of hydrogen-rich Type II supernovae. A total of 52 Type II supernovae having well-sampled optical light curves and spectral sequences were analyzed. Concentrating on the H{sub ?} P-Cygni profile we measure its velocity from the FWHM of the emission and the ratio of absorption to emission (a/e) at a common epoch at the start of the recombination phase, and search for correlations between these spectral parameters and photometric properties of the V-band light curves. Testing the strength of various correlations we find that a/e appears to be the dominant spectral parameter in terms of describing the diversity in our measured supernova properties. It is found that supernovae with smaller a/e have higher H{sub ?} velocities, more rapidly declining light curves from maximum during the plateau and radioactive tail phase, are brighter at maximum light, and have shorter optically thick phase durations. We discuss possible explanations of these results in terms of physical properties of Type II supernovae, speculating that the most likely parameters that influence the morphologies of H{sub ?} profiles are the mass and density profile of the hydrogen envelope, together with additional emission components due to circumstellar interaction.

  5. Odor investigation of a Portland cement plant

    SciTech Connect (OSTI)

    Pleus, R.C. [Intertox, Inc., Seattle, WA (United States)

    1998-12-31

    The main concern expressed by Smithville residents is whether the odors they were smelling during odor events were due to chemicals that could cause adverse health effects. Odors were allegedly emanating from the town`s Portland cement plant. The purpose of the study was to measure the ambient air for 20 reduced sulfur, 50 volatile organic compounds, and air samples for olfactometric analysis. Carbonyl sulfide was found to be at a concentration that could create a sense of odor and irritation. This sense of irritation may be due to a physiological response by the central nervous system, and is not associated with any known adverse effects. This physiological response could account for some or all of the irritation experienced by residents during odor events. Comparing chemical concentrations that were detected in air samples to standard and recognized guidelines for acceptable exposure, all measured concentrations were found to be well below the acceptable criteria. From these data the authors conclude that no acute or chronic adverse health effects are expected at the concentrations of the chemicals detected downwind of the cement plant, either routinely or during odor events.

  6. Structure of the minor pseudopilin XcpW from the Pseudomonas aeruginosa type II secretion system

    SciTech Connect (OSTI)

    Franz, Laura P.; Douzi, Badreddine; Durand, Eric; Dyer, David H.; Voulhouxd, Rom; Forest, Katrina T.

    2012-01-13

    Pseudomonas aeruginosa utilizes the type II secretion machinery to transport virulence factors through the outer membrane into the extracellular space. Five proteins in the type II secretion system share sequence homology with pilin subunits of type IV pili and are called the pseudopilins. The major pseudopilin X{sub cp}T{sub G} assembles into an intraperiplasmic pilus and is thought to act in a piston-like manner to push substrates through an outer membrane secretin. The other four minor pseudopilins, X{sub cp}U{sub H}, X{sub cp}V{sub I}, X{sub cp}W{sub J} and X{sub cp}X{sub K}, play less well defined roles in pseudopilus formation. It was recently discovered that these four minor pseudopilins form a quaternary complex that is presumed to initiate the formation of the pseudopilus and to localize to its tip. Here, the structure of X{sub cp}W{sub J} was refined to 1.85 {angstrom} resolution. The structure revealed the type IVa pilin fold with an embellished variable antiparallel {beta}-sheet as also found in the X{sub cp}W{sub J} homologue enterotoxigenic Escherichia coli G{sub sp}J{sub W} and the X{sub cp}U{sub H} homologue Vibrio cholerae E{sub ps}U{sub H}. It is proposed that the exposed surface of this sheet may cradle the long N-terminal 1 helix of another pseudopilin. The final 31 amino acids of the X{sub cp}W{sub J} structure are instrinsically disordered. Deletion of this unstructured region of X{sub cp}W{sub J} did not prevent type II secretion in vivo.

  7. TEST & EVALUATION REPORT FOR THE HEDGEHOG-II PACKAGING SYSTEMS DOT-7A TYPE A CONTAINER

    SciTech Connect (OSTI)

    KELLY, D.L.

    2003-12-29

    This report documents the US. Department of Transportation Specification 7A (DOT-7A) Type A compliance test and evaluation results for the Hedgehog-II packaging systems. The approved Hedgehog-II packaging configurations provide primary and secondary containment. The approved packaging configurations described within this report are designed to ship Type A quantities of radioactive materials, normal form. Contents may be in solid or liquid form. Liquids transported in the approved 1 L glass bottle assembly shall have a specific gravity of less than or equal to 1.6. Liquids transported in all other approved configurations shall have a specific gravity of less than or equal to 2.0. The solid contents, including packaging, are limited in weight to the gross weight of the as-tested liquids and bottles. The approved Hedgehog-II packaging configurations described in this report may be transported by air, and have been evaluated as meeting the applicable International Air Transport Association/International Civil Aviation Organization (IATA/ICAO) Dangerous Goods Regulations in addition to the DOT requirements.

  8. Alternative Fuel for Portland Cement Processing

    SciTech Connect (OSTI)

    Schindler, Anton K; Duke, Steve R; Burch, Thomas E; Davis, Edward W; Zee, Ralph H; Bransby, David I; Hopkins, Carla; Thompson, Rutherford L; Duan, Jingran; Venkatasubramanian, Vignesh; Stephen, Giles

    2012-06-30

    The production of cement involves a combination of numerous raw materials, strictly monitored system processes, and temperatures on the order of 1500 °C. Immense quantities of fuel are required for the production of cement. Traditionally, energy from fossil fuels was solely relied upon for the production of cement. The overarching project objective is to evaluate the use of alternative fuels to lessen the dependence on non-renewable resources to produce portland cement. The key objective of using alternative fuels is to continue to produce high-quality cement while decreasing the use of non-renewable fuels and minimizing the impact on the environment. Burn characteristics and thermodynamic parameters were evaluated with a laboratory burn simulator under conditions that mimic those in the preheater where the fuels are brought into a cement plant. A drop-tube furnace and visualization method were developed that show potential for evaluating time- and space-resolved temperature distributions for fuel solid particles and liquid droplets undergoing combustion in various combustion atmospheres. Downdraft gasification has been explored as a means to extract chemical energy from poultry litter while limiting the throughput of potentially deleterious components with regards to use in firing a cement kiln. Results have shown that the clinkering is temperature independent, at least within the controllable temperature range. Limestone also had only a slight effect on the fusion when used to coat the pellets. However, limestone addition did display some promise in regards to chlorine capture, as ash analyses showed chlorine concentrations of more than four times greater in the limestone infused ash as compared to raw poultry litter. A reliable and convenient sampling procedure was developed to estimate the combustion quality of broiler litter that is the best compromise between convenience and reliability by means of statistical analysis. Multi-day trial burns were conducted

  9. Photospheric magnitude diagrams for type II supernovat: A promising tool to compute distances

    SciTech Connect (OSTI)

    Rodríguez, Ósmar; Clocchiatti, Alejandro; Hamuy, Mario

    2014-12-01

    We develop an empirical color-based standardization for Type II supernovae (SNe II), equivalent to the classical surface brightness method given in Wesselink. We calibrate this standardization using SNe II with host galaxy distances measured using Cepheids, and a well-constrained shock breakout epoch and extinction due to the host galaxy. We estimate the reddening with an analysis of the B – V versus V – I color-color curves, similar to that of Natali et al. With four SNe II meeting the above requirements, we build a photospheric magnitude versus color diagram (similar to an H-R diagram) with a dispersion of 0.29 mag. We also show that when using time since shock breakout instead of color as the independent variable, the same standardization gives a dispersion of 0.09 mag. Moreover, we show that the above time-based standardization corresponds to the generalization of the standardized candle method of Hamuy and Pinto for various epochs throughout the photospheric phase. To test the new tool, we construct Hubble diagrams for different subsamples of 50 low-redshift (cz < 10{sup 4} km s{sup –1}) SNe II. For 13 SNe within the Hubble flow (cz {sub CMB} > 3000 km s{sup –1}) and with a well-constrained shock breakout epoch we obtain values of 68-69 km s{sup –1} Mpc{sup –1} for the Hubble constant and a mean intrinsic scatter of 0.12 mag or 6% in relative distances.

  10. Pump Spectral Bandwidth, Birefringence, and Entanglement in Type-II Parametric Down Conversion

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Erenso, Daniel

    2009-01-01

    The twin photons produced by a type-II spontaneous parametric down conversion are well know as a potential source of photons for quantum teleportation due to the strong entanglement in polarization. This strong entanglement in polarization, however, depends on the spectral composition of the pump photon and the nature of optical isotropy of the crystal. By exact numerical calculation of the concurrence, we have shown that how pump photons spectral width and the birefringence nature of the crystal directly affect the degree of polarization entanglement of the twin photons.

  11. Neutron Scattering Studies of Vortex Matter in Type-II Superconductors

    SciTech Connect (OSTI)

    Xinsheng Ling

    2012-02-02

    The proposed program is an experimental study of the fundamental properties of Abrikosov vortex matter in type-II superconductors. Most superconducting materials used in applications such as MRI are type II and their transport properties are determined by the interplay between random pinning, interaction and thermal fluctuation effects in the vortex state. Given the technological importance of these materials, a fundamental understanding of the vortex matter is necessary. The vortex lines in type-II superconductors also form a useful model system for fundamental studies of a number of important issues in condensed matter physics, such as the presence of a symmetry-breaking phase transition in the presence of random pinning. Recent advances in neutron scattering facilities such as the major upgrade of the NIST cold source and the Spallation Neutron Source are providing unprecedented opportunities in addressing some of the longstanding issues in vortex physics. The core component of the proposed program is to use small angle neutron scattering and Bitter decoration experiments to provide the most stringent test of the Bragg glass theory by measuring the structure factor in both the real and reciprocal spaces. The proposed experiments include a neutron reflectometry experiment to measure the precise Q-dependence of the structure factor of the vortex lattice in the Bragg glass state. A second set of SANS experiments will be on a shear-strained Nb single crystal for testing a recently proposed theory of the stability of Bragg glass. The objective is to artificially create a set of parallel grain boundaries into a Nb single crystal and use SANS to measure the vortex matter diffraction pattern as a function of the changing angle between the applied magnetic field to the grain boundaries. The intrinsic merits of the proposed work are a new fundamental understanding of type-II superconductors on which superconducting technology is based, and a firm understanding of phases

  12. Portland Company to Receive $1.3 Million to Improve Hydro Power...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Portland Company to Receive 1.3 Million to Improve Hydro Power Technologies Portland Company to Receive 1.3 Million to Improve Hydro Power Technologies September 15, 2009 -...

  13. Cosmological parameter uncertainties from SALT-II type Ia supernova light curve models

    SciTech Connect (OSTI)

    Mosher, J.; Sako, M. [Department of Physics and Astronomy, University of Pennsylvania, 209 South 33rd Street, Philadelphia, PA 19104 (United States); Guy, J.; Astier, P.; Betoule, M.; El-Hage, P.; Pain, R.; Regnault, N. [LPNHE, CNRS/IN2P3, Universit Pierre et Marie Curie Paris 6, Universi Denis Diderot Paris 7, 4 place Jussieu, F-75252 Paris Cedex 05 (France); Kessler, R.; Frieman, J. A. [Kavli Institute for Cosmological Physics, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637 (United States); Marriner, J. [Center for Particle Astrophysics, Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510 (United States); Biswas, R.; Kuhlmann, S. [Argonne National Laboratory, 9700 South Cass Avenue, Lemont, IL 60439 (United States); Schneider, D. P., E-mail: kessler@kicp.chicago.edu [Department of Astronomy and Astrophysics, The Pennsylvania State University, University Park, PA 16802 (United States)

    2014-09-20

    We use simulated type Ia supernova (SN Ia) samples, including both photometry and spectra, to perform the first direct validation of cosmology analysis using the SALT-II light curve model. This validation includes residuals from the light curve training process, systematic biases in SN Ia distance measurements, and a bias on the dark energy equation of state parameter w. Using the SN-analysis package SNANA, we simulate and analyze realistic samples corresponding to the data samples used in the SNLS3 analysis: ?120 low-redshift (z < 0.1) SNe Ia, ?255 Sloan Digital Sky Survey SNe Ia (z < 0.4), and ?290 SNLS SNe Ia (z ? 1). To probe systematic uncertainties in detail, we vary the input spectral model, the model of intrinsic scatter, and the smoothing (i.e., regularization) parameters used during the SALT-II model training. Using realistic intrinsic scatter models results in a slight bias in the ultraviolet portion of the trained SALT-II model, and w biases (w {sub input} w {sub recovered}) ranging from 0.005 0.012 to 0.024 0.010. These biases are indistinguishable from each other within the uncertainty; the average bias on w is 0.014 0.007.

  14. ON THE TEMPORAL EVOLUTION OF THE DISK COUNTERPART OF TYPE II SPICULES IN THE QUIET SUN

    SciTech Connect (OSTI)

    Sekse, D. H.; Rouppe van der Voort, L.; De Pontieu, B.

    2013-02-20

    The newly established type II spicule has been speculated to provide enough hot plasma to play an important role in the mass loading and heating of the solar corona. With the identification of rapid blueshifted excursions (RBEs) as the on-disk counterpart of type II spicules we have analyzed three different high-quality timeseries with the CRisp Imaging SpectroPolarimeter (CRISP) at the Swedish Solar Telescope on La Palma and subjected to an automated detection routine to detect a large number of RBEs for statistical purposes. Our observations are of a quiet-Sun region at disk center and we find lower Doppler velocities, 15-40 km s{sup -1}, and Doppler widths, 2-15 km s{sup -1}, of RBEs than in earlier coronal hole studies, 30-50 km s{sup -1} and 7-23 km s{sup -1}, respectively. In addition, we examine the spatial dependence of Doppler velocities and widths along the RBE axis and conclude that there is no clear trend to this over the field of view or in individual RBEs in the quiet Sun at disk center. These differences with previous coronal hole studies are attributed to the more varying magnetic field configuration in quiet-Sun conditions. Using an extremely high-cadence data set has allowed us to improve greatly on the determination of lifetimes of RBEs, which we find to range from 5 to 60 s with an average lifetime of 30 s, as well as the transverse motions in RBEs, with transverse velocities up to 55 km s{sup -1} and averaging 12 km s{sup -1}. Furthermore, our measurements of the recurrence rates of RBEs provide important new constraints on coronal heating by spicules. We also see many examples of a sinusoidal wave pattern in the transverse motion of RBEs with periods averaging 54 s and amplitudes from 21.5 to 129 km which agrees well with previous studies of wave motion in spicules at the limb. We interpret the appearance of RBEs over their full length within a few seconds as the result of a combination of three kinds of motions as is earlier reported for

  15. Highly mobile type II twin boundary in Ni-Mn-Ga five-layered martensite

    SciTech Connect (OSTI)

    Sozinov, A.; Lanska, N.; Soroka, A.; Straka, L.

    2011-09-19

    Twin relationships and stress-induced reorientation were studied in Ni{sub 2}Mn{sub 1.14}Ga{sub 0.86} single crystal with five-layered modulated martensite crystal structure. Very low twinning stress of about 0.1 MPa was found for twin boundaries which deviated a few degrees from the (011) crystallographic plane. However, twin boundaries oriented exactly parallel to the (011) plane exhibited considerably higher level of twinning stress, above 1 MPa. X-ray diffraction experiments and calculations based on approximation of the martensite crystal lattice as a tetragonal lattice with a slight monoclinic distortion identified the two different kinds of twin interfaces as type II and type I twin boundaries.

  16. Portland, Oregon: Solar in Action (Brochure), Solar America Cities, Energy Efficiency & Renewable Energy (EERE)

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Portland, Oregon Includes case studies on: * Increasing Market Demand: The Solar Now! Campaign * Streamlining City Regulations * Integrating Solar into City Planning and Facilities October 2011 Solar in Action Portland was designated by the U.S. Department of Energy (DOE) on June 20, 2007, as a Solar America City. Portland has worked toward, and in many ways, achieved, a reputation as one of the country's leading cities in sustainability. This is due in part to Portland being the first U.S. city

  17. Persistent C II absorption in the normal type Ia supernova 2002fk

    SciTech Connect (OSTI)

    Cartier, Rgis; Zelaya, Paula [Millennium Institute of Astrophysics, Casilla 36-D, Santiago (Chile); Hamuy, Mario; Maza, Jos; Gonzlez, Luis; Huerta, Leonor [Departamento de Astronoma, Universidad de Chile, Casilla 36-D, Santiago (Chile); Pignata, Giuliano [Departamento Ciencias Fisicas, Universidad Andres Bello, Av. Repblica 252, Santiago (Chile); Frster, Francisco [Center for Mathematical Modelling, Universidad de Chile, Avenida Blanco Encalada 2120, Piso 7, Santiago (Chile); Folatelli, Gaston [Institute for the Physics and Mathematics of the Universe (IPMU), University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8583 (Japan); Phillips, Mark M.; Morrell, Nidia; Contreras, Carlos; Roth, Miguel; Gonzlez, Sergio [Carnegie Institution of Washington, Las Campanas Observatory, Colina el Pino s/n, Casilla 601 (Chile); Krisciunas, Kevin; Suntzeff, Nicholas B. [Department of Physics and Astronomy, Texas A and M University, 4242 TAMU, College Station, TX 77843 (United States); Clocchiatti, Alejandro [Departamento de Astronoma y Astrofsica, Pontificia Universidad Catlica de Chile, Casilla 306, Santiago (Chile); Coppi, Paolo [Department of Astronomy, Yale University, New Haven, CT 06520-8101 (United States); Koviak, Kathleen, E-mail: rcartier@das.uchile.cl [Carnegie Institution of Washington, 813 Santa Barbara Street, Pasadena, CA 911901 (United States)

    2014-07-01

    We present well-sampled UBVRIJHK photometry of SN 2002fk starting 12 days before maximum light through 122 days after peak brightness, along with a series of 15 optical spectra from 4 to +95 days since maximum. Our observations show the presence of C II lines in the early-time spectra of SN 2002fk, expanding at 11,000 km s{sup 1} and persisting until 8 days past maximum light with a velocity of ?9000 km s{sup 1}. SN 2002fk is characterized by a small velocity gradient of v-dot {sub Si} {sub II}=26 km s{sup 1} day{sup 1}, possibly caused by an off-center explosion with the ignition region oriented toward the observer. The connection between the viewing angle of an off-center explosion and the presence of C II in the early-time spectrum suggests that the observation of C II could be also due to a viewing angle effect. Adopting the Cepheid distance to NGC 1309 we provide the first H {sub 0} value based on near-infrared (near-IR) measurements of a Type Ia supernova (SN) between 63.0 0.8 (3.4 systematic) and 66.7 1.0 (3.5 systematic) km s{sup 1} Mpc{sup 1}, depending on the absolute magnitude/decline rate relationship adopted. It appears that the near-IR yields somewhat lower (6%-9%) H {sub 0} values than the optical. It is essential to further examine this issue by (1) expanding the sample of high-quality near-IR light curves of SNe in the Hubble flow, and (2) increasing the number of nearby SNe with near-IR SN light curves and precise Cepheid distances, which affords the promise to deliver a more precise determination of H {sub 0}.

  18. Exchange of Type II Dockerin-Containing Subunits of the C. thermocellum Cellulosome as Revealed by SNAP-tags

    SciTech Connect (OSTI)

    Waller, Benjamin; Olson, Daniel G.; Currie, Devin; Guss, Adam M; Lynd, Lee R

    2013-01-01

    Clostridium thermocellum is a thermophilic anaerobic bacterium which efficiently hydrolyzes and metabolizes cellulose to ethanol through the action of its cellulosome, a multiprotein enzymatic complex. A fluorescent protein probe, consisting of a type II dockerin module fused to a SNAP-tag, was developed in order to gain insight into the quaternary configuration of the cellulosome and to investigate the effect of deleting cipA, the protein scaffold on which the cellulosome is built. Fluorescence microscopy suggested that the probe had localized to polycellulosomal protuberances on the cell surface. Surprisingly, fluorescence intensity did not substantially change in the cipA deletion mutants. Sequential labeling experiments suggested that this was a result of bound type II dockerins from CipA being replaced by unbound type II dockerins from the fluorophore-SNAP-XDocII probe. This mechanism of dockerin exchange could represent an efficient means for modifying cellulosome composition.

  19. Clean Energy Works Portland Pilot Process Evaluation | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    This is a document from Research Into Action Inc., posted to the website of the U.S. Department of Energy's Better Buildings Neighborhood Program. Clean Energy Works Portland Pilot Process Evaluation (2.22 MB) More Documents & Publications Data Collection and Analysis Oregon Recovery Act State Memo Primer on Clean Energy Lending: The Major Components and Options

  20. Campbell response in type-II superconductors under strong pinning conditions

    SciTech Connect (OSTI)

    Willa, R.; Geshkenbein, V. B.; Prozorov, R.; Blatter, G.

    2015-11-11

    Measuring the ac magnetic response of a type II superconductor provides valuable information on the pinning landscape (pinscape) of the material. We use strong pinning theory to derive a microscopic expression for the Campbell length λC, the penetration depth of the ac signal. We show that λC is determined by the jump in the pinning force, in contrast to the critical current jc, which involves the jump in pinning energy. We demonstrate that the Campbell lengths generically differ for zero-field-cooled and field-cooled samples and predict that hysteretic behavior can appear in the latter situation. As a result, we compare our findings with new experimental data and show the potential of this technique in providing information on the material’s pinscape.

  1. Campbell response in type-II superconductors under strong pinning conditions

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Willa, R.; Geshkenbein, V. B.; Prozorov, R.; Blatter, G.

    2015-11-11

    Measuring the ac magnetic response of a type II superconductor provides valuable information on the pinning landscape (pinscape) of the material. We use strong pinning theory to derive a microscopic expression for the Campbell length λC, the penetration depth of the ac signal. We show that λC is determined by the jump in the pinning force, in contrast to the critical current jc, which involves the jump in pinning energy. We demonstrate that the Campbell lengths generically differ for zero-field-cooled and field-cooled samples and predict that hysteretic behavior can appear in the latter situation. As a result, we compare ourmore » findings with new experimental data and show the potential of this technique in providing information on the material’s pinscape.« less

  2. NONLINEAR WAVE INTERACTIONS AS EMISSION PROCESS OF TYPE II RADIO BURSTS

    SciTech Connect (OSTI)

    Ganse, Urs; Kilian, Patrick; Spanier, Felix; Vainio, Rami

    2012-06-01

    The emission of fundamental and harmonic frequency radio waves of type II radio bursts are assumed to be products of three-wave interaction processes of beam-excited Langmuir waves. Using a particle-in-cell code, we have performed simulations of the assumed emission region, a coronal mass ejection foreshock with two counterstreaming electron beams. Analysis of wavemodes within the simulation shows self-consistent excitation of beam-driven modes, which yield interaction products at both fundamental and harmonic emission frequencies. Through variation of the beam strength, we have investigated the dependence of energy transfer into electrostatic and electromagnetic modes, confirming the quadratic dependence of electromagnetic emission on electron beam strength.

  3. Photocapacitance study of type-II GaSb/GaAs quantum ring solar cells

    SciTech Connect (OSTI)

    Wagener, M. C.; Botha, J. R.; Carrington, P. J.; Krier, A.

    2014-01-07

    In this study, the density of states associated with the localization of holes in GaSb/GaAs quantum rings are determined by the energy selective charging of the quantum ring distribution. The authors show, using conventional photocapacitance measurements, that the excess charge accumulated within the type-II nanostructures increases with increasing excitation energies for photon energies above 0.9?eV. Optical excitation between the localized hole states and the conduction band is therefore not limited to the ?(k?=?0) point, with pseudo-monochromatic light charging all states lying within the photon energy selected. The energy distribution of the quantum ring states could consequently be accurately related from the excitation dependence of the integrated photocapacitance. The resulting band of localized hole states is shown to be well described by a narrow distribution centered 407?meV above the GaAs valence band maximum.

  4. Hybrid type-I InAs/GaAs and type-II GaSb/GaAs quantum dot structure with enhanced photoluminescence

    SciTech Connect (OSTI)

    Ji, Hai-Ming; Liang, Baolai Simmonds, Paul J.; Juang, Bor-Chau; Yang, Tao; Young, Robert J.; Huffaker, Diana L.

    2015-03-09

    We investigate the photoluminescence (PL) properties of a hybrid type-I InAs/GaAs and type-II GaSb/GaAs quantum dot (QD) structure grown in a GaAs matrix by molecular beam epitaxy. This hybrid QD structure exhibits more intense PL with a broader spectral range, compared with control samples that contain only InAs or GaSb QDs. This enhanced PL performance is attributed to additional electron and hole injection from the type-I InAs QDs into the adjacent type-II GaSb QDs. We confirm this mechanism using time-resolved and power-dependent PL. These hybrid QD structures show potential for high efficiency QD solar cell applications.

  5. QER Public Meeting in Portland, OR: Electricity Transmission, Storage and

    Broader source: Energy.gov (indexed) [DOE]

    Distribution - West | Department of Energy 11, 2014 - 9:00 A.M. PDT Lewis & Clark College Templeton Campus Center - Stamm Dining Room Portland, OR 97219 Click Here to view the Lewis & Clark Campus Map. Meeting Information Meeting Agenda Federal Register Notice Meeting Briefing Memo (See Link Below to download PDF) Full Meeting Transcript1 (See link below to download PDF) Meeting Summary (See link below to download PDF) Panelist Statements & Presentations (See Link Below to

  6. Spectroscopy and dynamics of charge transfer excitons in type-II band aligned quantum confined heterostructures

    SciTech Connect (OSTI)

    Kushavah, Dushyant; Mohapatra, P. K.; Vasa, P.; Singh, B. P.; Rustagi, K. C.; Bahadur, D.

    2015-05-15

    We illustrate effect of charge transfer (CT) in type-II quantum confined heterostructure by comparing CdSe quantum dots (QDs), CdSe/CdTe heterostructure quantum dots (HQDs) and CdSe/CdTe/CdSe quantum well-quantum dots (QWQDs) heterostructures. CdSe core QDs were synthesized using a kinetic growth method where QD size depends on reaction time. For shell coating we used modified version of successive ionic layer adsorption and reaction (SILAR). Size of different QDs ?5 to 7 nm were measured by transmission electron microscopy (TEM). Strong red shift from ?597 to ?746 nm in photoluminescence (PL) spectra from QDs to QWQDs shows high tunability which is not possible with single constituent semiconductor QDs. PL spectra have been recorded at different temperatures (10K-300K). Room temperature time correlated single photon counting (TCSPC) measurements for QDs to QWQDs show three exponential radiative decay. The slowest component decay constant in QWQDs comes around eight fold to ?51 ns as compared to ?6.5 ns in HQD suggesting new opportunities to tailor the radiative carrier recombination rate of CT excitons.

  7. Electronic and optical properties of single excitons and biexcitons in type-II quantum dot nanocrystals

    SciTech Connect (OSTI)

    Koc, Fatih; Sahin, Mehmet E-mail: mehsahin@gmail.com

    2014-05-21

    In this study, a detailed investigation of the electronic and optical properties (i.e., binding energies, absorption wavelength, overlap of the electron-hole wave functions, recombination oscillator strength, etc.) of an exciton and a biexciton in CdTe/CdSe core/shell type-II quantum dot heterostructures has been carried out in the frame of the single band effective mass approximation. In order to determine the electronic properties, we have self-consistently solved the Poisson-Schrdinger equations in the Hartree approximation. We have considered all probable Coulomb interaction effects on both energy levels and also on the corresponding wave functions for both single exciton and biexciton. In addition, we have taken into account the quantum mechanical exchange-correlation effects in the local density approximation between same kinds of particles for biexciton. Also, we have examined the effect of the ligands and dielectric mismatch on the electronic and optical properties. We have used a different approximation proposed by Sahin and Koc [Appl. Phys. Lett. 102, 183103 (2013)] for the recombination oscillator strength of the biexciton for bound and unbound cases. The results obtained have been presented comparatively as a function of the shell thicknesses and probable physical reasons in behind of the results have been discussed in a detail.

  8. Optimisation of NSLS-II Blade X-ray Beam Position Monitors: from Photoemission type to Diamond Detector

    SciTech Connect (OSTI)

    ILINSKI P.

    2012-07-10

    Optimisation of blade type x-ray beam position monitors (XBPM) was performed for NSLS-II undulator IVU20. Blade material, con and #64257;guration and operation principle was analysed in order to improve XBPM performance. Optimisation is based on calculation of the XBPM signal spatial distribution. Along with standard photoemission type XBPM a Diamond Detector Blades (DDB) were analysed as blades for XBPMs. DDB XBPMs can help to overcome drawbacks of the photoemission blade XBPMs.

  9. RADIO SIGNATURES OF CORONAL-MASS-EJECTION-STREAMER INTERACTION AND SOURCE DIAGNOSTICS OF TYPE II RADIO BURST

    SciTech Connect (OSTI)

    Feng, S. W.; Chen, Y.; Kong, X. L.; Li, G.; Song, H. Q.; Feng, X. S.; Liu Ying

    2012-07-01

    It has been suggested that type II radio bursts are due to energetic electrons accelerated at coronal shocks. Radio observations, however, have poor or no spatial resolutions to pinpoint the exact acceleration locations of these electrons. In this paper, we discuss a promising approach to infer the electron acceleration location by combining radio and white light observations. The key assumption is to relate specific morphological features (e.g., spectral bumps) of the dynamic spectra of type II radio bursts to imaging features (e.g., coronal mass ejection (CME) going into a streamer) along the CME (and its driven shock) propagation. In this study, we examine the CME-streamer interaction for the solar eruption dated on 2003 November 1. The presence of spectral bump in the relevant type II radio burst is identified, which is interpreted as a natural result of the shock-radio-emitting region entering the dense streamer structure. The study is useful for further determinations of the location of type II radio burst and the associated electron acceleration by CME-driven shock.

  10. Portland Company to Receive $1.3 Million to Improve Hydro Power

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Technologies | Department of Energy Portland Company to Receive $1.3 Million to Improve Hydro Power Technologies Portland Company to Receive $1.3 Million to Improve Hydro Power Technologies September 15, 2009 - 12:00am Addthis Washington, DC - US Energy Secretary Steven Chu today awarded more than $1.3 million to Ocean Renewable Power Company in Portland, Maine to improve the efficiency, flexibility, and environmental performance of hydroelectric energy. The investment will further the

  11. Application to Export Electric Energy OE Docket No. EA-97-D Portland

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    General Electric Company | Department of Energy Company Application to Export Electric Energy OE Docket No. EA-97-D Portland General Electric Company Application from PGE to export electric energy to Canada. EA-97-D PGE (CN).pdf (2.49 MB) More Documents & Publications EA-97-D Portland General Electric Company Application to Export Electric Energy OE Docket No. EA-97-D Portland General Electric Company: Federal Register Notice, Volume 79, No. 103 - May 29, 2014 Application to Export

  12. Demonstration Assessment of LED Roadway Lighting: NE Cully Blvd., Portland, OR

    SciTech Connect (OSTI)

    Royer, M. P.; Poplawski, M. E.; Tuenge, J. R.

    2012-08-01

    GATEWAY program report on a demonstration of LED roadway lighting on NE Cully Boulevard in Portland, OR, a residential collector road.

  13. High resolution structures of the bone morphogenetic protein type II receptor in two crystal forms: Implications for ligand binding

    SciTech Connect (OSTI)

    Mace, Peter D.; Cutfield, John F.; Cutfield, Sue M. . E-mail: sue.cutfield@otago.ac.nz

    2006-12-29

    BMPRII is a type II TGF-{beta} serine threonine kinase receptor which is integral to the bone morphogenetic protein (BMP) signalling pathway. It is known to bind BMP and growth differentiation factor (GDF) ligands, and has overlapping ligand specificity with the activin type II receptor, ActRII. In contrast to activin and TGF-{beta} type ligands, BMPs bind to type II receptors with lower affinity than type I receptors. Crystals of the BMPRII ectodomain were grown in two different forms, both of which diffracted to high resolution. The tetragonal form exhibited some disorder, whereas the entire polypeptide was seen in the orthorhombic form. The two structures retain the basic three-finger toxin fold of other TGF-{beta} receptor ectodomains, and share the main hydrophobic patch used by ActRII to bind various ligands. However, they present different conformations of the A-loop at the periphery of the proposed ligand-binding interface, in conjunction with rearrangement of a disulfide bridge within the loop. This particular disulfide (Cys94-Cys117) is only present in BMPRII and activin receptors, suggesting that it is important for their likely shared mode of binding. Evidence is presented that the two crystal forms represent ligand-bound and free conformations of BMPRII. Comparison with the solved structure of ActRII bound to BMP2 suggests that His87, unique amongst TGF-{beta} receptors, may play a key role in ligand recognition.

  14. Mechanism of Bacterial Cell-Surface Attachment Revealed by the Structure of Cellulosomal Type II Cohesin-dockerin Complex

    SciTech Connect (OSTI)

    Adams,J.; Pal, G.; Jia, Z.; Smith, S.

    2006-01-01

    Bacterial cell-surface attachment of macromolecular complexes maintains the microorganism in close proximity to extracellular substrates and allows for optimal uptake of hydrolytic byproducts. The cellulosome is a large multienzyme complex used by many anaerobic bacteria for the efficient degradation of plant cell-wall polysaccharides. The mechanism of cellulosome retention to the bacterial cell surface involves a calcium-mediated protein-protein interaction between the dockerin (Doc) module from the cellulosomal scaffold and a cohesin (Coh) module of cell-surface proteins located within the proteoglycan layer. Here, we report the structure of an ultra-high-affinity (K{sub a} = 1.44 x 10{sup 10} M{sup 1-}) complex between type II Doc, together with its neighboring X module from the cellulosome scaffold of Clostridium thermocellum, and a type II Coh module associated with the bacterial cell surface. Identification of X module-Doc and X module-Coh contacts reveal roles for the X module in Doc stability and enhanced Coh recognition. This extremely tight interaction involves one face of the Coh and both helices of the Doc and comprises significant hydrophobic character and a complementary extensive hydrogen-bond network. This structure represents a unique mechanism for cell-surface attachment in anaerobic bacteria and provides a rationale for discriminating between type I and type II Coh modules.

  15. Serum markers for type II diabetes mellitus (Patent) | SciTech...

    Office of Scientific and Technical Information (OSTI)

    Authors: Metz, Thomas O ; Qian, Wei-Jun ; Jacobs, Jon M ; Polpitiya, Ashoka D ; Camp, II, David G ; Smith, Richard D Publication Date: 2014-03-18 OSTI Identifier: 1127136 Report ...

  16. Design of ternary alkaline-earth metal Sn(II) oxides with potential good p-type conductivity

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Du, Mao -Hua; Singh, David J.; Zhang, Lijun; Li, Yuwei; Xu, Qiaoling; Ma, Yanming; Zheng, Weitao

    2016-04-19

    Oxides with good p-type conductivity have been long sought after to achieve high performance all-oxide optoelectronic devices. Divalent Sn(II) based oxides are promising candidates because of their rather dispersive upper valence bands caused by the Sn-5s/O-2p anti-bonding hybridization. There are so far few known Sn(II) oxides being p-type conductive suitable for device applications. Here, we present via first-principles global optimization structure searches a material design study for a hitherto unexplored Sn(II)-based system, ternary alkaline-earth metal Sn(II) oxides in the stoichiometry of MSn2O3 (M = Mg, Ca, Sr, Ba). We identify two stable compounds of SrSn2O3 and BaSn2O3, which can bemore » stabilized by Sn-rich conditions in phase stability diagrams. Their structures follow the Zintl behaviour and consist of basic structural motifs of SnO3 tetrahedra. Unexpectedly they show distinct electronic properties with band gaps ranging from 1.90 (BaSn2O3) to 3.15 (SrSn2O3) eV, and hole effective masses ranging from 0.87 (BaSn2O3) to above 6.0 (SrSn2O3) m0. Further exploration of metastable phases indicates a wide tunability of electronic properties controlled by the details of the bonding between the basic structural motifs. Lastly, this suggests further exploration of alkaline-earth metal Sn(II) oxides for potential applications requiring good p-type conductivity such as transparent conductors and photovoltaic absorbers.« less

  17. Purification and Crystallization of a Multimodular Heterotrimeric Complex Containing Both Type I and Type II Cohesin-dockerin Interactions from the Cellulosome of Clostridium thermocellum

    SciTech Connect (OSTI)

    M Currie; J Adams; S Ali; S Smith; Z Jia

    2011-12-31

    The multimodular scaffoldin subunit CipA is the central component of the cellulosome, a multienzyme plant cell-wall-degrading complex, from Clostridium thermocellum. It captures secreted cellulases and hemicellulases and anchors the entire complex to the cell surface via high-affinity calcium-dependent interactions between cohesin and dockerin modules termed type I and type II interactions. The crystallization of a heterotrimeric complex comprising the type II cohesin module from the cell-surface protein SdbA, a trimodular C-terminal fragment of the scaffoldin CipA and the type I dockerin module from the CelD cellulase is reported. The crystals belonged to space group P2{sub 1}2{sub 1}2{sub 1}, with unit-cell parameters a = 119.37, b = 186.31, c = 191.17 {angstrom}. The crystals diffracted to 2.7 {angstrom} resolution with four or eight molecules of the ternary protein complex in the asymmetric unit.

  18. Lasing action and extraordinary reduction in long radiative lifetime of type-II GaSb/GaAs quantum dots using circular photonic crystal nanocavity

    SciTech Connect (OSTI)

    Hsu, Kung-Shu; Chang, Shu-Wei; Hung, Wei-Chun; Chang, Chih-Chi; Lin, Wei-Hsun; Lin, Shih-Yen; Shih, Min-Hsiung; Lee, Po-Tsung; Chang, Yia-Chung

    2015-08-31

    We demonstrated the lasing action and remarkable reduction in long radiative lifetimes of type-II GaSb/GaAs quantum dots using a circular photonic-crystal nano-cavity with high Purcell factors. The associated enhancement in carrier recombination was surprisingly high and could even surpass type-I counterparts in similar conditions. These phenomena reveal that the type-II sample exhibited extremely low nonradiative recombination so that weak radiative transitions were more dominant than expected. The results indicate that type-II nanostructures may be advantageous for applications which require controllable radiative transitions but low nonradiative depletions.

  19. Hydration of Portland cement with additions of calcium sulfoaluminates

    SciTech Connect (OSTI)

    Le Saout, Gwenn; Lothenbach, Barbara; Hori, Akihiro; Higuchi, Takayuki; Winnefeld, Frank

    2013-01-15

    The effect of mineral additions based on calcium aluminates on the hydration mechanism of ordinary Portland cement (OPC) was investigated using isothermal calorimetry, thermal analysis, X-ray diffraction, scanning electron microscopy, solid state nuclear magnetic resonance and pore solution analysis. Results show that the addition of a calcium sulfoaluminate cement (CSA) to the OPC does not affect the hydration mechanism of alite but controls the aluminate dissolution. In the second blend investigated, a rapid setting cement, the amorphous calcium aluminate reacts very fast to ettringite. The release of aluminum ions strongly retards the hydration of alite but the C-S-H has a similar composition as in OPC with no additional Al to Si substitution. As in CSA-OPC, the aluminate hydration is controlled by the availability of sulfates. The coupling of thermodynamic modeling with the kinetic equations predicts the amount of hydrates and pore solution compositions as a function of time and validates the model in these systems.

  20. Frequent intragenic deletion of the P gene in Tanzanian patients with Type II oculocutaneous albinism (OCA2)

    SciTech Connect (OSTI)

    Spritz, R.; Fukai, K.; Holmes, S.A.

    1995-06-01

    Type II oculocutaneous albinism (OCA2) is an autosomal recessive disorder in which the biosynthesis of melanin pigment is reduced in the skin, hair, and eyes. OCA2, which results from mutations of the P gene, is the most frequent type of albinism in African and African-American patients. OCA2 is especially frequent in Tanzania, where it occurs with an incidence of {approximately}1/1,400. We have identified abnormalities of the P gene in each of 13 unrelated patients with OCA2 from Tanzania. One of these, a deletion of exon 7, is strongly predominant, accounting for {approximately}77% of mutant alleles in this group of patients. 20 refs., 2 figs.

  1. A HIGH-FREQUENCY TYPE II SOLAR RADIO BURST ASSOCIATED WITH THE 2011 FEBRUARY 13 CORONAL MASS EJECTION

    SciTech Connect (OSTI)

    Cho, K.-S.; Kim, R.-S.; Gopalswamy, N.; Kwon, R.-Y.; Yashiro, S.

    2013-03-10

    We examine the relationship between the high-frequency (425 MHz) type II radio burst and the associated white-light coronal mass ejection (CME) that occurred on 2011 February 13. The radio burst had a drift rate of 2.5 MHz s{sup -1}, indicating a relatively high shock speed. From SDO/AIA observations we find that a loop-like erupting front sweeps across high-density coronal loops near the start time of the burst (17:34:17 UT). The deduced distance of shock formation (0.06 Rs) from the flare center and speed of the shock (1100 km s{sup -1}) using the measured density from SDO/AIA observations are comparable to the height (0.05 Rs, from the solar surface) and speed (700 km s{sup -1}) of the CME leading edge observed by STEREO/EUVI. We conclude that the type II burst originates even in the low corona (<59 Mm or 0.08 Rs, above the solar surface) due to the fast CME shock passing through high-density loops.

  2. Portland General Electic RFP--deadline for intent to bid September...

    Open Energy Info (EERE)

    Member 28 August, 2013 - 15:09 Portland General Electric has issued an RFP for marketing and supply for its voluntary renewable energy program. Bidders may bid on the...

  3. Microsoft PowerPoint - To NETL Albany Site from Portland, Oregon...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Portland, Oregon Airport (PDX) 1. Take the AIRPORT EXIT RD. until it intersects I-205. 2. Follow I-205 SOUTH for 25 MILES to the intersection with I-5 SOUTH (Salem exit). 3. Follow...

  4. Application to Export Electric Energy OE Docket No. EA-97-D Portland...

    Broader source: Energy.gov (indexed) [DOE]

    PGE to export electric energy to Canada. Federal Register Notice. EA-97-D PGE.pdf More Documents & Publications Application to Export Electric Energy OE Docket No. EA-97-D Portland...

  5. Portland Community College Celebrates Commissioning of Combined Heat and Power Fuel Cell System

    Broader source: Energy.gov [DOE]

    U.S. Energy Secretary Steven Chu today applauded the commissioning of a combined heat and power (CHP) fuel cell system at Portland Community College in Oregon. The CHP fuel cell system will help...

  6. New Whole-House Solutions Case Study: Tom Walsh & Co., Portland...

    Energy Savers [EERE]

    the New Columbia neighborhood in Portland, Oregon. Twenty of the homes were built in phase two of the project with the goal of earning the 2,000 federal tax credit for new ...

  7. Application to Export Electric Energy OE Docket No. EA-97-D Portland...

    Office of Environmental Management (EM)

    Company Application to Export Electric Energy OE Docket No. EA-97-D Portland General Electric Company Application from PGE to export electric energy to Canada. EA-97-D PGE (CN).pdf...

  8. Text-alternative Version: A Tour Of The Portland 911 Federal Building Led

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Connected Lighting Installation | Department of Energy Text-alternative Version: A Tour Of The Portland 911 Federal Building Led Connected Lighting Installation Text-alternative Version: A Tour Of The Portland 911 Federal Building Led Connected Lighting Installation So you'll see where some lights are on, and that's because we have emergency lighting, or egress lighting. So we leave a certain number of lights on, even though, technically because of occupancy sensing, you don't necessarily

  9. MicroRNA-139 suppresses proliferation in luminal type breast cancer cells by targeting Topoisomerase II alpha

    SciTech Connect (OSTI)

    Hua, Wei; Sa, Ke-Di; Zhang, Xiang; Jia, Lin-Tao; Zhao, Jing; Yang, An-Gang; Zhang, Rui; Fan, Jing; Bian, Ka

    2015-08-07

    The classification of molecular subtypes of breast cancer improves the prognostic accuracy and therapeutic benefits in clinic. However, because of the complexity of breast cancer, more biomarkers and functional molecules need to be explored. Here, analyzing the data in a huge cohort of breast cancer patients, we found that Topoisomerase II alpha (TOP2a), an important target of chemotherapy is a biomarker for prognosis in luminal type breast cancer patients, but not in basal like or HER2 positive breast cancer patients. We identified that miR-139, a previous reported anti-metastatic microRNA targets 3’-untranslated region (3′UTR) of TOP2a mRNA. Further more, we revealed that the forced expression of miR-139 reduces the TOP2a expression at both mRNA and protein levels. And our functional experiments showed that the ectopic expression of miR-139 remarkably inhibits proliferation in luminal type breast cancer cells, while exogenous TOP2a expression could rescue inhibition of cell proliferation mediated by miR-139. Collectively, our present study demonstrates the miR-139-TOP2a regulatory axis is important for proliferation in luminal type breast cancer cells. This functional link may help us to further understand the specificity of subtypes of breast cancer and optimize the strategy of cancer treatment. - Highlights: • High levels of TOP2a expression are closely associated with poor prognosis in luminal type breast cancer patients. • TOP2a is a novel target of miR-139. • Overexpression of miR-139 inhibits proliferation in luminal type breast cancer cells. • TOP2a is essential for miR-139-induced growth arrest in luminal type breast cancer cells.

  10. Probing the mechanism of cellulosome attachment to the Clostridium thermocellum cell surface: computer simulation of the Type II Cohesin-Dockerin complex and its variants

    SciTech Connect (OSTI)

    Xu, Jiancong; Smith, Jeremy C

    2010-10-01

    The recalcitrance of lignocellulosic biomass to hydrolysis is the bottleneck in cellulosic ethanol production. Efficient degradation of biomass by the anaerobic bacterium Clostridium thermocellum is carried out by the multicomponent cellulosome complex. The bacterial cell-surface attachment of the cellulosome is mediated by high-affinity protein-protein interactions between the Type II cohesin domain borne by the cell envelope protein and the Type II dockerin domain, together with neighboring X-module present at the C-terminus of the scaffolding protein (Type II coh-Xdoc). Here, the Type II coh-Xdoc interaction is probed using molecular dynamics simulations, free-energy calculations and essential dynamics analyses on both the wild type and various mutants of the C. thermocellum Type II coh-Xdoc in aqueous solution. The simulations identify the hot spots, i.e. the amino acid residues that may lead to a dramatic decrease in binding affinity upon mutation and also probe the effects of mutations on the mode of binding. The results suggest that bulky and hydrophobic residues at the protein interface, which make specific contacts with their counterparts, may play essential roles in retaining a rigid cohesin-dockerin interface. Moreover, dynamical cross-correlation analysis indicates that the X-module has a dramatic effect on the cohesin-dockerin interaction and is required for the dynamical integrity of the interface.

  11. Demonstration Assessment of LED Roadway Lighting: NE Cully Boulevard Portland, OR

    SciTech Connect (OSTI)

    Royer, Michael P.; Poplawski, Michael E.; Tuenge, Jason R.

    2012-06-29

    A new roadway lighting demonstration project was initiated in late 2010, which was planned in conjunction with other upgrades to NE Cully Boulevard, a residential collector road in the northeast area of Portland, OR. With the NE Cully Boulevard project, the Portland Bureau of Transportation hoped to demonstrate different light source technologies and different luminaires side-by-side. This report documents the initial performance of six different newly installed luminaires, including three LED products, one induction product, one ceramic metal halide product, and one high-pressure sodium (HPS) product that represented the baseline solution. It includes reported, calculated, and measured performance; evaluates the economic feasibility of each of the alternative luminaires; and documents user feedback collected from a group of local Illuminating Engineering Society (IES) members that toured the site. This report does not contain any long-term performance evaluations or laboratory measurements of luminaire performance. Although not all of the installed products performed equally, the alternative luminaires generally offered higher efficacy, more appropriate luminous intensity distributions, and favorable color quality when compared to the baseline HPS luminaire. However, some products did not provide sufficient illumination to all areas—vehicular drive lanes, bicycle lanes, and sidewalks—or would likely fail to meet design criteria over the life of the installation due to expected depreciation in lumen output. While the overall performance of the alternative luminaires was generally better than the baseline HPS luminaire, cost remains a significant barrier to widespread adoption. Based on the cost of the small quantity of luminaires purchased for this demonstration, the shortest calculated payback period for one of the alternative luminaire types was 17.3 years. The luminaire prices were notably higher than typical prices for currently available luminaires

  12. CdSe/CdTe type-II superlattices grown on GaSb (001) substrates by molecular beam epitaxy

    SciTech Connect (OSTI)

    Li Jingjing; Liu Shi; Wang Shumin; Ding Ding; Johnson, Shane R.; Zhang Yonghang; Liu Xinyu; Furdyna, Jacek K.; Smith, David J.

    2012-03-19

    CdSe/CdTe superlattices are grown on GaSb substrates using molecular beam epitaxy. X-ray diffraction measurements and cross-sectional transmission electron microscopy images indicate high crystalline quality. Photoluminescence (PL) measurements show the effective bandgap varies with the superlattice layer thicknesses and confirm the CdSe/CdTe heterostructure has a type-II band edge alignment. The valence band offset between unstrained CdTe and CdSe is determined as 0.63 {+-} 0.06 eV by fitting the measured PL peak positions using the envelope function approximation and the Kronig-Penney model. These results suggest that CdSe/CdTe superlattices are promising candidates for multi-junction solar cells and other optoelectronic devices based on GaSb substrates.

  13. Study of Row Phase Dependent Skew Quadrupole Fields in Apple-II Type EPUs at the ALS

    SciTech Connect (OSTI)

    Steier, C.; Marks, S.; Prestemon, Soren; Robin, David; Schlueter, Ross; Wolski, Andrzej

    2004-05-07

    Since about 5 years, Apple-II type Elliptically Polarizing Undulators (EPU) have been used very successfully at the ALS to generate high brightness photon beams with arbitrary polarization. However, both EPUs installed so far cause significant changes of the vertical beamsize, especially when the row phase is changed to change the polarization of the photons emitted. Detailed measurements indicate this is caused by a row phase dependent skew quadrupole term in the EPUs. Magnetic measurements revealed the same effect for the third EPU to be installed later this year. All measurements to identify and quantify the effect with beam will be presented, as well as some results of magnetic bench measurements and numeric field simulations.

  14. Type Ia supernovae from merging white dwarfs. II. Post-merger detonations

    SciTech Connect (OSTI)

    Raskin, Cody; Kasen, Daniel; Moll, Rainer; Woosley, Stan; Schwab, Josiah

    2014-06-10

    Merging carbon-oxygen (CO) white dwarfs are a promising progenitor system for Type Ia supernovae (SNe Ia), but the underlying physics and timing of the detonation are still debated. If an explosion occurs after the secondary star is fully disrupted, the exploding primary will expand into a dense CO medium that may still have a disk-like structure. This interaction will decelerate and distort the ejecta. Here we carry out multidimensional simulations of 'tamped' SN Ia models, using both particle and grid-based codes to study the merger and explosion dynamics and a radiative transfer code to calculate synthetic spectra and light curves. We find that post-merger explosions exhibit an hourglass-shaped asymmetry, leading to strong variations in the light curves with viewing angle. The two most important factors affecting the outcome are the scale height of the disk, which depends sensitively on the binary mass ratio, and the total {sup 56}Ni yield, which is governed by the central density of the remnant core. The synthetic broadband light curves rise and decline very slowly, and the spectra generally look peculiar, with weak features from intermediate mass elements but relatively strong carbon absorption. We also consider the effects of the viscous evolution of the remnant and show that a longer time delay between merger and explosion probably leads to larger {sup 56}Ni yields and more symmetrical remnants. We discuss the relevance of this class of aspherical 'tamped' SN Ia for explaining the class of 'super-Chandrasekhar' SN Ia.

  15. A BROKEN SOLAR TYPE II RADIO BURST INDUCED BY A CORONAL SHOCK PROPAGATING ACROSS THE STREAMER BOUNDARY

    SciTech Connect (OSTI)

    Kong, X. L.; Chen, Y.; Li, G.; Feng, S. W.; Song, H. Q.; Jiao, F. R.; Guo, F.

    2012-05-10

    We discuss an intriguing type II radio burst that occurred on 2011 March 27. The dynamic spectrum was featured by a sudden break at about 43 MHz on the well-observed harmonic branch. Before the break, the spectrum drifted gradually with a mean rate of about -0.05 MHz s{sup -1}. Following the break, the spectrum jumped to lower frequencies. The post-break emission lasted for about 3 minutes. It consisted of an overall slow drift which appeared to have a few fast-drift sub-bands. Simultaneous observations from the Solar TErrestrial RElations Observatory and the Solar Dynamics Observatory were also available and are examined for this event. We suggest that the slow-drift period before the break was generated inside a streamer by a coronal eruption driven shock, and the spectral break as well as the relatively wide spectrum after the break is a consequence of the shock crossing the streamer boundary where density drops abruptly. It is suggested that this type of radio bursts can be taken as a unique diagnostic tool for inferring the coronal density structure, as well as the radio-emitting source region.

  16. THE POSSIBLE ROLE OF CORONAL STREAMERS AS MAGNETICALLY CLOSED STRUCTURES IN SHOCK-INDUCED ENERGETIC ELECTRONS AND METRIC TYPE II RADIO BURSTS

    SciTech Connect (OSTI)

    Kong, Xiangliang; Chen, Yao; Feng, Shiwei; Wang, Bing; Du, Guohui; Guo, Fan; Li, Gang

    2015-01-10

    Two solar typeII radio bursts, separated by ?24 hr in time, are examined together. Both events are associated with coronal mass ejections (CMEs) erupting from the same active region (NOAA 11176) beneath a well-observed helmet streamer. We find that the typeII emissions in both events ended once the CME/shock fronts passed the white-light streamer tip, which is presumably the magnetic cusp of the streamer. This leads us to conjecture that the closed magnetic arcades of the streamer may play a role in electron acceleration and typeII excitation at coronal shocks. To examine such a conjecture, we conduct a test-particle simulation for electron dynamics within a large-scale partially closed streamer magnetic configuration swept by a coronal shock. We find that the closed field lines play the role of an electron trap via which the electrons are sent back to the shock front multiple times and therefore accelerated to high energies by the shock. Electrons with an initial energy of 300 eV can be accelerated to tens of keV concentrating at the loop apex close to the shock front with a counter-streaming distribution at most locations. These electrons are energetic enough to excite Langmuir waves and radio bursts. Considering the fact that most solar eruptions originate from closed field regions, we suggest that the scenario may be important for the generation of more metric typeIIs. This study also provides an explanation of the general ending frequencies of metric typeIIs at or above 20-30 MHz and the disconnection issue between metric and interplanetary typeIIs.

  17. A Measurement of the Rate of Type Ia Supernovae in Galaxy Clusters from the SDSS-II Supernova Survey

    SciTech Connect (OSTI)

    Dilday, Benjamin; Bassett, Bruce; Becker, Andrew; Bender, Ralf; Castander, Francisco; Cinabro, David; Frieman, Joshua A.; Galbany, Lluis; Garnavich, Peter; Goobar, Ariel; Hopp, Ulrich; /Munich, Tech. U. /Munich U. Observ. /Tokyo U.

    2010-03-01

    We present measurements of the Type Ia supernova (SN) rate in galaxy clusters based on data from the Sloan Digital Sky Survey-II (SDSS-II) Supernova Survey. The cluster SN Ia rate is determined from 9 SN events in a set of 71 C4 clusters at z {le} 0.17 and 27 SN events in 492 maxBCG clusters at 0.1 {le} z {le} 0.3. We find values for the cluster SN Ia rate of (0.37{sub -0.12-0.01}{sup +0.17+0.01}) SNur h{sup 2} and (0.55{sub -0.11-0.01}{sup +0.13+0.02}) SNur h{sup 2} (SNux = 10{sup -12}L{sub x{circle_dot}}{sup -1} yr{sup -1}) in C4 and maxBCG clusters, respectively, where the quoted errors are statistical and systematic, respectively. The SN rate for early-type galaxies is found to be (0.31{sub -0.12-0.01}{sup +0.18+0.01}) SNur h{sup 2} and (0.49{sub -0.11-0.01}{sup +0.15+0.02}) SNur h{sup 2} in C4 and maxBCG clusters, respectively. The SN rate for the brightest cluster galaxies (BCG) is found to be (2.04{sub -1.11-0.04}{sup +1.99+0.07}) SNur h{sup 2} and (0.36{sub -0.30-0.01}{sup +0.84+0.01}) SNur h{sup 2} in C4 and maxBCG clusters, respectively. The ratio of the SN Ia rate in cluster early-type galaxies to that of the SN Ia rate in field early-type galaxies is 1.94{sub -0.91-0.015}{sup +1.31+0.043} and 3.02{sub -1.03-0.048}{sup +1.31+0.062}, for C4 and maxBCG clusters, respectively. The SN rate in galaxy clusters as a function of redshift, which probes the late time SN Ia delay distribution, shows only weak dependence on redshift. Combining our current measurements with previous measurements, we fit the cluster SN Ia rate data to a linear function of redshift, and find r{sub L} = [(0.49{sub -0.14}{sup +0.15}) + (0.91{sub -0.81}{sup +0.85}) x z] SNuB h{sup 2}. A comparison of the radial distribution of SNe in cluster to field early-type galaxies shows possible evidence for an enhancement of the SN rate in the cores of cluster early-type galaxies. With an observation of at most 3 hostless, intra-cluster SNe Ia, we estimate the fraction of cluster SNe that are

  18. Optical and ultraviolet observations of a low-velocity type II plateau supernova 2013am in M65

    SciTech Connect (OSTI)

    Zhang, Jujia; Bai, Jinming; Fan, Yufeng; Wang, Jianguo; Yi, Weimin; Wang, Chuanjun; Xin, Yuxin; Liangchang; Zhang, Xiliang; Lun, Baoli; Wang, Xueli; He, Shousheng [Yunnan Observatories (YNAO), Chinese Academy of Sciences, Kunming 650216 (China); Wang, Xiaofeng; Huang, Fang; Mo, Jun [Physics Department and Tsinghua Center for Astrophysics (THCA), Tsinghua University, Beijing 100084 (China); Mazzali, Paolo A.; Bersier, David [Astrophysics Research Institute, Liverpool John Moores University, Liverpool Science Park, 146 Brownlow Hill, Liverpool L3 5RF (United Kingdom); Zhang, Tianmeng [National Astronomical Observatories of China (NAOC), Chinese Academy of Sciences, Beijing 100012 (China); Walker, Emma S., E-mail: jujia@ynao.ac.cn, E-mail: baijinming@ynao.ac.cn, E-mail: wang_xf@mail.tsinghua.edu.cn [Department of Physics, Yale University, New Haven, CT 06520-8121 (United States)

    2014-12-10

    Optical and ultraviolet observations for the nearby type II plateau supernova (SN IIP) 2013am in the nearby spiral galaxy M65 are presented in this paper. The early spectra are characterized by relatively narrow P-Cygni features, with ejecta velocities much lower than observed in normal SNe IIP (i.e., ?2000 km s{sup 1} versus ?5000 km {sup 1} in the middle of the plateau phase). Moreover, prominent Ca II absorptions are also detected in SN 2013am at relatively early phases. These spectral features are reminiscent of those seen in the low-velocity and low-luminosity SN IIP 2005cs. However, SN 2013am exhibits different photometric properties, having shorter plateau phases and brighter light curve tails if compared to SN 2005cs. Adopting R{sub V} = 3.1 and a mean value of total reddening derived from the photometric and spectroscopic methods (i.e., E(B V) = 0.55 0.19 mag), we find that SN 2013am may have reached an absolute V-band peak magnitude of 15.83 0.71 mag and produced an {sup 56}Ni mass of 0.016{sub ?0.006}{sup +0.010} M {sub ?} in the explosion. These parameters are close to those derived for SN 2008in and SN 2009N, which have been regarded as 'gap-filler' objects linking the faint SNe IIP to the normal ones. This indicates that some low-velocity SNe IIP may not necessarily result from the low-energetic explosions. The low expansion velocities could be due to a lower metallicity of the progenitor stars, a larger envelope mass ejected in the explosion, or the effect of viewing angle where these SNe were observed at an angle away from the polar direction.

  19. Aegir II | Open Energy Information

    Open Energy Info (EERE)

    Aegir II Jump to: navigation, search Name Aegir II Facility Aegir II Sector Wind energy Facility Type Offshore Wind Facility Status Proposed Location Lake Michigan MI Coordinates...

  20. Penascal II | Open Energy Information

    Open Energy Info (EERE)

    Penascal II Jump to: navigation, search Name Penascal II Facility Penascal II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Developer Iberdrola...

  1. Glacier II | Open Energy Information

    Open Energy Info (EERE)

    II Jump to: navigation, search Name Glacier II Facility Glacier II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner NaturEner Developer...

  2. Purification and crystallization of a trimodular complex comprising the type II cohesin–dockerin interaction from the cellulosome of Clostridium thermocellum

    SciTech Connect (OSTI)

    Adams, Jarrett J.; Pal, Gour; Yam, Katherine; Spencer, Holly L.; Jia, Zongchao; Smith, Steven P.

    2005-01-01

    A trimodular complex comprising the type II cohesin–dockerin interaction from the cellulosome of C. thermocellum has been purified and crystallized by the hanging-drop vapour-diffusion method. A native crystal and a selenomethionine derivative have been analyzed using X-ray diffraction. The high-affinity calcium-mediated type II cohesin–dockerin interaction is responsible for the attachment of the multi-enzyme cellulose-degrading complex, termed the cellulosome, to the cell surface of the thermophilic anaerobe Clostridium thermocellum. A trimodular 40 kDa complex comprising the SdbA type II cohesin and the the CipA type II dockerin–X module modular pair from the cellulosome of C. thermocellum has been crystallized. The crystals belong to space group P2{sub 1}2{sub 1}2{sub 1}, with unit-cell parameters a = 45.21, b = 52.34, c = 154.69 Å. The asymmetric unit contains one molecule of the protein complex and native and selenomethionine-derivative crystals diffracted to 2.1 and 2.0 Å, respectively.

  3. Portland, Oregon Summary of Reported Data From July 1, 2010 ...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ... energy efficiency upgrades of type i as shown in Table C- 1. Table C- 1. Residential Project Energy Upgrade Categories, Lifetimes and Energy Savings 10 Type Category Description ...

  4. Lipid rafts are required for signal transduction by angiotensin II receptor type 1 in neonatal glomerular mesangial cells

    SciTech Connect (OSTI)

    Adebiyi, Adebowale Soni, Hitesh; John, Theresa A.; Yang, Fen

    2014-05-15

    Angiotensin II (ANG-II) receptors (AGTRs) contribute to renal physiology and pathophysiology, but the underlying mechanisms that regulate AGTR function in glomerular mesangium are poorly understood. Here, we show that AGTR1 is the functional AGTR subtype expressed in neonatal pig glomerular mesangial cells (GMCs). Cyclodextrin (CDX)-mediated cholesterol depletion attenuated cell surface AGTR1 protein expression and ANG-II-induced intracellular Ca{sup 2+} ([Ca{sup 2+}]{sub i}) elevation in the cells. The COOH-terminus of porcine AGTR1 contains a caveolin (CAV)-binding motif. However, neonatal GMCs express CAV-1, but not CAV-2 and CAV-3. Colocalization and in situ proximity ligation assay detected an association between endogenous AGTR1 and CAV-1 in the cells. A synthetic peptide corresponding to the CAV-1 scaffolding domain (CSD) sequence also reduced ANG-II-induced [Ca{sup 2+}]{sub i} elevation in the cells. Real-time imaging of cell growth revealed that ANG-II stimulates neonatal GMC proliferation. ANG-II-induced GMC growth was attenuated by EMD 66684, an AGTR1 antagonist; BAPTA, a [Ca{sup 2+}]{sub i} chelator; KN-93, a Ca{sup 2+}/calmodulin-dependent protein kinase II inhibitor; CDX; and a CSD peptide, but not PD 123319, a selective AGTR2 antagonist. Collectively, our data demonstrate [Ca{sup 2+}]{sub i}-dependent proliferative effect of ANG-II and highlight a critical role for lipid raft microdomains in AGTR1-mediated signal transduction in neonatal GMCs. - Highlights: AGTR1 is the functional AGTR subtype expressed in neonatal mesangial cells. Endogenous AGTR1 associates with CAV-1 in neonatal mesangial cells. Lipid raft disruption attenuates cell surface AGTR1 protein expression. Lipid raft disruption reduces ANG-II-induced [Ca{sup 2+}]{sub i} elevation in neonatal mesangial cells. Lipid raft disruption inhibits ANG-II-induced neonatal mesangial cell growth.

  5. Demonstration Assessment of Light Emitting Diode (LED) Commercial Garage Lights In the Providence Portland Medical Center, Portland, Oregon

    SciTech Connect (OSTI)

    Ton, My K.; Richman, Eric E.; Gilbride, Theresa L.

    2008-11-11

    This U.S. Department of Energy GATEWAY Demonstration project studied the applicability of light-emitting diode (LED) luminaires for commercial parking garage applications. High-pressure sodium (HPS) area luminaires were replaced with new LED area luminaires. The project was supported under the U.S. Department of Energy (DOE) Solid State Lighting Program. Other participants in the demonstration project included Providence Portland Medical Center in Portland, Oregon, the Energy Trust of Oregon, and Lighting Sciences Group (LSG) Inc. Pacific Northwest National Laboratory (PNNL) conducted the measurements and analysis of the results. PNNL manages GATEWAY demonstrations for DOE and represents their perspective in the conduct of the work. Quantitative and qualitative measurements of light and electrical power were taken at the site for both HPS and LED light sources. Economic costs were estimated and garage users’ responses to the new light sources were gauged with a survey. Six LED luminaires were installed in the below-ground parking level A, replacing six existing 150W HPS lamps spread out over two rows of parking spaces. Illuminance measurements were taken at floor level approximately every 4 ft on a 60-ft x 40-ft grid to measure light output of these LED luminaires which were termed the “Version 1” luminaires. PNNL conducted power measurements of the circuit in the garage to which the 6 luminaires were connected and determined that they drew an average of 82 W per lamp. An improved LED luminaire, Version 2, was installed in Level B of the parking garage. Illuminance measurements were not made of this second luminaire on site due to higher traffic conditions, but photometric measurements of this lamp and Version 1 were made in an independent testing laboratory and power usage for Version 2 was also measured. Version 1 was found to produce 3600 lumens and Version 2 was found to produce 4700 lumens of light and to consume 78 Watts. Maximum and minimum light

  6. Intensity- and temperature- dependent carrier recombination in InAs/In(As1-xSbx) type-II superlattices

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Olson, Benjamin Varberg; Kadlec, Emil Andrew; Kim, Jin K.; Klem, John F.; Hawkins, Samuel D.; Shaner, Eric A.; Flatte, Michael E.

    2015-04-17

    Our time-resolved measurements for carrier recombination are reported as a midwave infrared InAs/InAs0.66Sb0.34 type-II superlattice (T2SL) function of pump intensity and sample temperature. By including the T2SL doping level in the analysis, the Shockley-Read-Hall (SRH), radiative, and Auger recombination components of the carrier lifetime are uniquely distinguished at each temperature. SRH is the limiting recombination mechanism for excess carrier densities less than the doping level (the low-injection regime) and temperatures less than 175 K. A SRH defect energy of 95 meV, either below the T2SL conduction-band edge or above the T2SL valence-band edge, is identified. Auger recombination limits the carriermore » lifetimes for excess carrier densities greater than the doping level (the high-injection regime) for all temperatures tested. Additionally, at temperatures greater than 225 K, Auger recombination also limits the low-injection carrier lifetime due to the onset of the intrinsic temperature range and large intrinsic carrier densities. Radiative recombination is found to not have a significant contribution to the total lifetime for all temperatures and injection regimes, with the data implying a photon recycling factor of 15. Using the measured lifetime data, diffusion currents are calculated and compared to calculated Hg1-xCdxTe dark current, indicating that the T2SL can have a lower dark current with mitigation of the SRH defect states. Our results illustrate the potential for InAs/InAs1-xSbx T2SLs as absorbers in infrared photodetectors.« less

  7. Department of Energy Announces Quadrennial Energy Review Public Meeting in Portland

    Broader source: Energy.gov [DOE]

    WASHINGTON, DC – The Energy Department’s Office of Energy Policy and Systems Analysis will host a public meeting in Portland, OR, on Friday, July 11, to receive stakeholder input to the Quadrennial Energy Review (QER), an administration-wide effort to make recommendations regarding key infrastructure needed for transmission, storage and distribution of energy.

  8. Chromium stabilization chemistry of paint removal wastes in Portland cement and blast furnace slag

    SciTech Connect (OSTI)

    Boy, J.H.; Race, T.D.; Reinbold, K.A.

    1995-12-31

    The use of cement based systems for solidification and stabilization of hazardous wastes has been proposed. The stabilization of Cr contaminated paint removal wastes in ordinary Portland cement and in a Portland cement and blast furnace slag matrix was investigated. A loading by volume of 75% waste and 25% cement (or cement + slag) was used. The expression of pore solution was utilized to determine the chemical environment encountered by the waste species in the cement matrix. The highly alkaline conditions of ordinary Portland cement determined the stability of the metal species, with Cr being highly soluble. The replacement of 25% of the Portland cement by blast furnace slag was found to decrease the [OH-] of the pore solution resulting in a decrease of the Cr concentration. For cement wastes forms hydrated for 28 days, the Cr concentration decreased in the expressed pore solution. During the TCLP tests the cement waste form and extraction solution were found to react, changing the chemistry of the extraction solution. The expression of pore solution was found to give a direct measure of the chemistry of the waste species in the cement matrix. This avoids the reaction of the TCLP extraction solution with the cement matrix which changes the solubility of the hazardous metals. 15 refs., 4 figs., 6 tabs.

  9. Portland cement for SO.sub.2 control in coal-fired power plants

    DOE Patents [OSTI]

    Steinberg, Meyer

    1985-01-01

    There is described a method of removing oxides of sulfur from the emissions of fossil fuel combustion by injecting portland cement into the boiler with the fuel, the combustion air, or downstream with the combustion gases. There is also described the cement products that result from this method.

  10. Portland cement for SO/sub 2/ control in coal-fired power plants

    DOE Patents [OSTI]

    Steinberg, M.

    1984-10-17

    A method is described for removing oxides of sulfur from the emissions of fossil fuel combustion by injecting portland cement into the boiler with the fuel, the combustion air, or downstream with the combustion gases. The cement products that result from this method is also described. 1 tab.

  11. Watch a Live Stream of the Portland Public Meeting on the Quadrennial Energy Review- Today!

    Broader source: Energy.gov [DOE]

    On Friday, July 11, the Department of Energy will host a public meeting in Portland, Oregon, to gather public comments on the Quadrennial Energy Review. This meeting will focus specifically on issues associated with electricity transmission, storage and distribution in the western United States.

  12. Energy Department Recognizes Cities of Beaverton and Hillsboro, Oregon, Portland Public Schools in Better Buildings Challenge

    Broader source: Energy.gov [DOE]

    As a part of the Administration’s effort to support greater energy efficiency through the Better Buildings Challenge, the Energy Department today recognized the cities of Beaverton and Hillsboro, as well as the Portland Public School District for their leadership in reducing energy use.

  13. Wilton Wind Energy Center II II | Open Energy Information

    Open Energy Info (EERE)

    II Jump to: navigation, search Name Wilton Wind Energy Center II II Facility Wilton Wind Energy Center II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In...

  14. Effect of arsenic on the optical properties of GaSb-based type II quantum wells with quaternary GaInAsSb layers

    SciTech Connect (OSTI)

    Janiak, F. Motyka, M.; S?k, G.; Dyksik, M.; Ryczko, K.; Misiewicz, J.; Weih, R.; Hfling, S.; Kamp, M.; Patriarche, G.

    2013-12-14

    Optical properties of molecular beam epitaxially grown type II W shaped GaSb/AlSb/InAs/GaIn(As)Sb/InAs/AlSb/GaSb quantum wells (QWs) designed for the active region of interband cascade lasers have been investigated. Temperature dependence of Fourier-transformed photoluminescence and photoreflectance was employed to probe the effects of addition of arsenic into the original ternary valence band well of GaInSb. It is revealed that adding arsenic provides an additional degree of freedom in terms of band alignment and strain tailoring and allows enhancing the oscillator strength of the active type II transition. On the other hand, however, arsenic incorporation apparently also affects the structural and optical material quality via generating carrier trapping states at the interfaces, which can deteriorate the radiative efficiency. These have been evidenced in several spectroscopic features and are also confirmed by cross-sectional transmission electron microscopy images. While arsenic incorporation into type II QWs is a powerful heterostructure engineering tool for optoelectronic devices, a compromise has to be found between ideal band structure properties and high quality morphological properties.

  15. All-vapor processing of p-type tellurium-containing II-VI semiconductor and ohmic contacts thereof

    DOE Patents [OSTI]

    McCandless, Brian E.

    2001-06-26

    An all dry method for producing solar cells is provided comprising first heat-annealing a II-VI semiconductor; enhancing the conductivity and grain size of the annealed layer; modifying the surface and depositing a tellurium layer onto the enhanced layer; and then depositing copper onto the tellurium layer so as to produce a copper tellurium compound on the layer.

  16. Application to Export Electric Energy OE Docket No. EA-97-D Portland

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    General Electric Company: Federal Register Notice, Volume 79, No. 103 - May 29, 2014 | Department of Energy Company: Federal Register Notice, Volume 79, No. 103 - May 29, 2014 Application to Export Electric Energy OE Docket No. EA-97-D Portland General Electric Company: Federal Register Notice, Volume 79, No. 103 - May 29, 2014 Application from PGE to export electric energy to Canada. Federal Register Notice. EA-97-D PGE.pdf (122.56 KB) More Documents & Publications Application to Export

  17. Existing Whole-House Solutions Case Study: Deep Energy Retrofit of 1910 House, Portland, Oregon

    SciTech Connect (OSTI)

    none,

    2011-12-01

    This case study lists project information, cost and energy efficiency performance data, energy efficiency measures and lessons learned for a 100-year-old home in Portland, Oregon, audited by Pacific Northwest National Laboratory for a deep energy retrofit. New HVAC and extensive insulation upgrades including rigid XPS and new siding over the old lead painted siding, and EPS on the basement walls and in cathedral ceiling helped bring HERS down to 68.

  18. Ashtabula II Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    II Wind Farm Jump to: navigation, search Name Ashtabula II Wind Farm Facility Ashtabula II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner...

  19. Kibby Mountain II | Open Energy Information

    Open Energy Info (EERE)

    Kibby Mountain II Jump to: navigation, search Name Kibby Mountain II Facility Kibby Mountain II Sector Wind energy Facility Type Commercial Scale Wind Facility Status Under...

  20. Papalote Creek II | Open Energy Information

    Open Energy Info (EERE)

    Papalote Creek II Jump to: navigation, search Name Papalote Creek II Facility Papalote Creek II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service...

  1. Marengo II Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    II Wind Farm Jump to: navigation, search Name Marengo II Wind Farm Facility Marengo II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner...

  2. Springview II Wind Project | Open Energy Information

    Open Energy Info (EERE)

    Springview II Wind Project Jump to: navigation, search Name Springview II Wind Project Facility Springview II Wind Project Sector Wind energy Facility Type Commercial Scale Wind...

  3. Meadow Lake II | Open Energy Information

    Open Energy Info (EERE)

    II Jump to: navigation, search Name Meadow Lake II Facility Meadow Lake II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Horizon Wind...

  4. Klondike II Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    Klondike II Wind Farm Jump to: navigation, search Name Klondike II Wind Farm Facility Klondike II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service...

  5. Vansycle Ridge II | Open Energy Information

    Open Energy Info (EERE)

    Vansycle Ridge II Jump to: navigation, search Name Vansycle Ridge II Facility Vansycle Ridge II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service...

  6. Carleton College II | Open Energy Information

    Open Energy Info (EERE)

    Carleton College II Jump to: navigation, search Name Carleton College II Facility Carleton College II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In...

  7. Little Pringle II | Open Energy Information

    Open Energy Info (EERE)

    II Jump to: navigation, search Name Little Pringle II Facility Little Pringle II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner SWI Wind...

  8. A second mutation in the type II procollagen gene (COL2A1) causing Stickler syndrome (arthro-ophthalmopathy) is also a premature termination codon

    SciTech Connect (OSTI)

    Ahmad, N.N.; Knowlton, R.G.; DiMascio, J.; Prockop, D.J. ); McDonald-McGinn, D.M.; Zackai, E.H.; LaRossa, D. )

    1993-01-01

    Genetic linkage analyses suggest that mutations in type II collagen may be responsible for Stickler syndrome, or arthro-ophthalmopathy (AO), in many families. In the present study oligonucleotide primers were developed to amplify and directly sequence eight of the first nine exons of the gene for type II procollagen (COL2A1). Analysis of the eight exons in 10 unrelated probands with AO revealed that one had a single-base mutation in one allele that changed the codon of -CGA- for arginine at amino acid position [alpha]1-9 in exon 7 to a premature termination signal for translation. The second mutation found to cause AO was, therefore, similar to the first in that both created premature termination signals in the COL2A1 gene. Since mutations producing premature termination signals have not previously been detected in genes for fibrillar collagens, the results raise the possibility that such mutations in the COL2A1 gene are a common cause of AO. 33 refs., 4 figs., 2 tabs.

  9. Band offset determination of mixed As/Sb type-II staggered gap heterostructure for n-channel tunnel field effect transistor application

    SciTech Connect (OSTI)

    Zhu, Y.; Jain, N.; Hudait, M. K.; Mohata, D. K.; Datta, S.; Lubyshev, D.; Fastenau, J. M.; Liu, A. K.

    2013-01-14

    The experimental study of the valence band offset ({Delta}E{sub v}) of a mixed As/Sb type-II staggered gap GaAs{sub 0.35}Sb{sub 0.65}/In{sub 0.7}Ga{sub 0.3}As heterostructure used as source/channel junction of n-channel tunnel field effect transistor (TFET) grown by molecular beam epitaxy was investigated by x-ray photoelectron spectroscopy (XPS). Cross-sectional transmission electron micrograph shows high crystalline quality at the source/channel heterointerface. XPS results demonstrate a {Delta}E{sub v} of 0.39 {+-} 0.05 eV at the GaAs{sub 0.35}Sb{sub 0.65}/In{sub 0.7}Ga{sub 0.3}As heterointerface. The conduction band offset was calculated to be {approx}0.49 eV using the band gap values of source and channel materials and the measured valence band offset. An effective tunneling barrier height of 0.21 eV was extracted, suggesting a great promise for designing a metamorphic mixed As/Sb type-II staggered gap TFET device structure for low-power logic applications.

  10. Limon II | Open Energy Information

    Open Energy Info (EERE)

    II Jump to: navigation, search Name Limon II Facility Limon II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner NextEra Energy Resources...

  11. Microsoft Word - DOE Congestion Workshop Portland 12-13-11 Final

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    UNITED STATES DEPARTMENT OF ENERGY 4 5 6 NATIONAL ELECTRIC TRANSMISSION CONGESTION STUDY 7 WORKSHOP 8 9 10 Portland, Oregon 11 Tuesday, December 13, 2011 12 13 14 2 PARTICIPANTS: 1 Welcome and Presentation: 2 DAVID MEYER 3 U.S. Department of Energy 4 5 Panel 1 Regulators: 6 7 PHILIP B. JONES 8 Washington Utilities & Transportation 9 Commission 10 11 STEVE OXLEY 12 Wyoming Public Service Commission 13 14 JOHN SAVAGE 15 Oregon Public Utilities Commission 16 17 MARSHA SMITH 18 Idaho Public

  12. Indian Country Energy & Infrastructure Working Group, Sept. 10-11, 2013, Portland, Maine

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    September 10-11, 2013 DOUBLETREE HOTEL 363 Maine Mall Road Portland, Maine 207-775 6161 AGENDA TUESDAY, SEPTEMBER 10, 2013 CONFERENCE ROOM: WHALEBACK 9:00 - 9:30 a.m. REGISTRATION & BREAKFAST (Hot breakfast will be provided onsite.) 9:30 - 10:00 a.m. WELCOME & INTRODUCTIONS Opening Prayer by ICEIWG Tribal Leader Pilar Thomas, Acting Director, U.S. DOE Office of Indian Energy (IE) & DOE ICEIWG co-chair Chief Joseph Socobasin, Passamaquoddy Tribe at Indian Township, ICEIWG member and

  13. Measurements of the Rate of Type Ia Supernovae at Redshift z < ~0.3 from the SDSS-II Supernova Survey

    SciTech Connect (OSTI)

    Dilday, Benjamin; Smith, Mathew; Bassett, Bruce; Becker, Andrew; Bender, Ralf; Castander, Francisco; Cinabro, David; Filippenko, Alexei V.; Frieman, Joshua A.; Galbany, Lluis; Garnavich, Peter M.; /Notre Dame U. /Stockholm U., OKC /Stockholm U.

    2010-01-01

    We present a measurement of the volumetric Type Ia supernova (SN Ia) rate based on data from the Sloan Digital Sky Survey II (SDSS-II) Supernova Survey. The adopted sample of supernovae (SNe) includes 516 SNe Ia at redshift z {approx}< 0.3, of which 270 (52%) are spectroscopically identified as SNe Ia. The remaining 246 SNe Ia were identified through their light curves; 113 of these objects have spectroscopic redshifts from spectra of their host galaxy, and 133 have photometric redshifts estimated from the SN light curves. Based on consideration of 87 spectroscopically confirmed non-Ia SNe discovered by the SDSS-II SN Survey, we estimate that 2.04{sub -0.95}{sup +1.61}% of the photometric SNe Ia may be misidentified. The sample of SNe Ia used in this measurement represents an order of magnitude increase in the statistics for SN Ia rate measurements in the redshift range covered by the SDSS-II Supernova Survey. If we assume a SN Ia rate that is constant at low redshift (z < 0.15), then the SN observations can be used to infer a value of the SN rate of r{sub V} = (2.69{sub -0.30-0.01}{sup +0.34+0.21}) x 10{sup -5} SNe yr{sup -1} Mpc{sup -3} (H{sub 0}/(70 km s{sup -1} Mpc{sup -1})){sup 3} at a mean redshift of {approx} 0.12, based on 79 SNe Ia of which 72 are spectroscopically confirmed. However, the large sample of SNe Ia included in this study allows us to place constraints on the redshift dependence of the SN Ia rate based on the SDSS-II Supernova Survey data alone. Fitting a power-law model of the SN rate evolution, r{sub V} (z) = A{sub p} x ((1+z)/(1+z{sub 0})){sup {nu}}, over the redshift range 0.0 < z < 0.3 with z{sub 0} = 0.21, results in A{sub p} = (3.43{sub -0.15}{sup +0.15}) x 10{sup -5} SNe yr{sup -1} Mpc{sup -3} (H{sub 0}/(70 km s{sup -1} Mpc{sup -1})){sup 3} and {nu} = 2.04{sub -0.89}{sup +0.90}.

  14. Breezy Bucks II | Open Energy Information

    Open Energy Info (EERE)

    II Jump to: navigation, search Name Breezy Bucks II Facility Breezy Bucks II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Breezy Bucks II...

  15. Salty Dog II | Open Energy Information

    Open Energy Info (EERE)

    II Jump to: navigation, search Name Salty Dog II Facility Salty Dog II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Salty Dog II LLC...

  16. Biglow Canyon Phase II Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    Scale Wind Facility Status In Service Owner Portland General Electric Developer Orion Energy Group Energy Purchaser Portland General Electric Location Sherman County OR...

  17. Pore size distribution, strength, and microstructure of portland cement paste containing metal hydroxide waste

    SciTech Connect (OSTI)

    Majid, Z.A.; Mahmud, H.; Shaaban, M.G.

    1996-12-31

    Stabilization/solidification of hazardous wastes is used to convert hazardous metal hydroxide waste sludge into a solid mass with better handling properties. This study investigated the pore size development of ordinary portland cement pastes containing metal hydroxide waste sludge and rice husk ash using mercury intrusion porosimetry. The effects of acre and the addition of rice husk ash on pore size development and strength were studied. It was found that the pore structures of mixes changed significantly with curing acre. The pore size shifted from 1,204 to 324 {angstrom} for 3-day old cement paste, and from 956 to 263 {angstrom} for a 7-day old sample. A reduction in pore size distribution for different curing ages was also observed in the other mixtures. From this limited study, no conclusion could be made as to any correlation between strength development and porosity. 10 refs., 6 figs., 3 tabs.

  18. Plant-Wide Energy Efficiency Assessment at the Arizona Portland Cement Plant in Rillito, Arizona

    SciTech Connect (OSTI)

    Stephen J. Coppinger, P.E.; Bruce Colburn, Ph.D., P.E., CEM

    2007-05-17

    A Department of Energy Plant-wide Assessment was undertaken by Arizona Portland Cement (APC) beginning in May 2005. The assessment was performed at APC’s cement production facility in Rillito, Arizona. The assessment included a compressed air evaluation along with a detailed process audit of plant operations and equipment. The purpose of this Energy Survey was to identify a series of energy cost savings opportunities at the Plant, and provide preliminary cost and savings estimates for the work. The assessment was successful in identifying projects that could provide annual savings of over $2.7 million at an estimated capital cost of $4.3 million. If implemented, these projects could amount to a savings of over 4.9 million kWh/yr and 384,420 MMBtu/year.

  19. Milford Wind Corridor Phase II | Open Energy Information

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    II Jump to: navigation, search Name Milford Wind Corridor Phase II Facility Milford Wind Corridor Phase II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In...

  20. Windland (Boxcar II) Wind Farm | Open Energy Information

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    Windland (Boxcar II) Wind Farm Jump to: navigation, search Name Windland (Boxcar II) Wind Farm Facility Windland (Boxcar II) Sector Wind energy Facility Type Commercial Scale Wind...

  1. Kotzebue Wind Project Phase II & III | Open Energy Information

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    II & III Jump to: navigation, search Name Kotzebue Wind Project Phase II & III Facility Kotzebue Wind Project Phase II & III Sector Wind energy Facility Type Commercial Scale Wind...

  2. Champion (Roscoe II) Wind Farm | Open Energy Information

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    Champion (Roscoe II) Wind Farm Jump to: navigation, search Name Champion (Roscoe II) Wind Farm Facility Champion (Roscoe II) Sector Wind energy Facility Type Commercial Scale Wind...

  3. University of Minnesota Morris II - PES | Open Energy Information

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    Morris II - PES Jump to: navigation, search Name University of Minnesota Morris II - PES Facility University of Minnesota Morris II - PES Sector Wind energy Facility Type Community...

  4. Mountain View Power Partners II Wind Farm | Open Energy Information

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    II Wind Farm Jump to: navigation, search Name Mountain View Power Partners II Wind Farm Facility Mountain View Power Partners II Sector Wind energy Facility Type Commercial Scale...

  5. Langdon II - FPL Wind Farm | Open Energy Information

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    Langdon II - FPL Wind Farm Jump to: navigation, search Name Langdon II - FPL Wind Farm Facility Langdon II - FPL Sector Wind energy Facility Type Commercial Scale Wind Facility...

  6. Buffalo Ridge II Wind Power Project | Open Energy Information

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    II Wind Power Project Jump to: navigation, search Name Buffalo Ridge II Wind Power Project Facility Buffalo Ridge II Wind Power Project Sector Wind energy Facility Type Commercial...

  7. Condon Wind Project phase II | Open Energy Information

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    Project phase II Jump to: navigation, search Name Condon Wind Project phase II Facility Condon Wind Project phase II Sector Wind energy Facility Type Commercial Scale Wind Facility...

  8. Embolization by Direct Puncture with a Transpedicular Approach Using an Isocenter Puncture (ISOP) Method in a Patient with a Type II Endoleak After Endovascular Aortic Repair (EVAR)

    SciTech Connect (OSTI)

    Ogawa, Yukihisa Hamaguchi, Shingo; Nishimaki, Hiroshi; Kon, Yuri; Chiba, Kiyoshi; Sakurai, Yuka; Murakami, Kenji; Arai, Yasunori; Miyairi, Takeshi; Nakajima, Yasuo

    2015-06-15

    BackgroundEndovascular aortic repair (EVAR) requires further intervention in 20-30 % of cases, often due to type II endoleak (T2EL). Management options for T2EL include transarterial embolization, direct puncture (DP), or transcaval embolization. We report the case of an 80-year-old man with T2EL who successfully underwent DP embolization.MethodsEmbolization by DP was performed with a transpedicular approach using an isocenter puncture (ISOP) method. An isocenter marker (ICM) was placed at a site corresponding to the aneurysm sac on fluoroscopy in two directions (frontal and lateral views). A vertebroplasty needle was inserted tangentially to the ICM under fluoroscopy and advanced to the anterior wall of the vertebral body. A 20 cm-length, 20-G-PTCD needle was inserted through the outer needle of the 13-G needle and advanced to the ICM. Sac embolization using 25 % N-buty-2-cyanoacrylate diluted with Lipiodol was performed. After complete embolization, rotational DA confirmed good filling of the sac with Lipiodol. The outer cannula and 13-G needle were removed and the procedure was completed.ResultsThe patient was discharged the next day. Contrast-enhanced computed tomography 1 and 8 months later showed no Lipiodol washout in the aneurysm sac, no endoleak recurrence, and no expansion of the excluded aneurysm.ConclusionDP with a transpedicular approach using ISOP may be useful when translumbar and transabdominal approaches prove difficult.

  9. Evidence for a defect level above the conduction band edge of InAs/InAsSb type-II superlattices for applications in efficient infrared photodetectors

    SciTech Connect (OSTI)

    Prins, A. D.; Lewis, M. K.; Bushell, Z. L.; Sweeney, S. J.; Liu, S.; Zhang, Y.-H.

    2015-04-27

    We report pressure-dependent photoluminescence (PL) experiments under hydrostatic pressures up to 2.16?GPa on a mid-wave infrared InAs/InAs{sub 0.86}Sb{sub 0.14} type-II superlattice (T2SL) structure at different pump laser excitation powers and sample temperatures. The pressure coefficient of the T2SL transition was found to be 93??2?meVGPa{sup ?1}. The integrated PL intensity increases with pressure up to 1.9?GPa then quenches rapidly indicating a pressure induced level crossing with the conduction band states at ?2?GPa. Analysis of the PL intensity as a function of excitation power at 0, 0.42, 1.87, and 2.16?GPa shows a clear change in the dominant photo-generated carrier recombination mechanism from radiative to defect related. From these data, evidence for a defect level situated at 0.18??0.01?eV above the conduction band edge of InAs at ambient pressure is presented. This assumes a pressure-dependent energy shift of ?11?meVGPa{sup ?1} for the valence band edge and that the defect level is insensitive to pressure, both of which are supported by an Arrhenius activation energy analysis.

  10. Evidence of a Shockley-Read-Hall Defect State Independent of Band-Edge Energy in InAs/In(As,Sb) Type-II Superlattices

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Aytac, Y.; Olson, B. V.; Kim, J. K.; Shaner, E. A.; Hawkins, S. D.; Klem, J. F.; Flatté, M. E.; Boggess, T. F.

    2016-05-24

    A set of seven InAs/InAsSb type-II superlattices (T2SLs) were designed to have speci c bandgap energies between 290 meV (4.3 m) and 135 meV (9.2 m) in order to study the e ects of the T2SL bandgap energy on the minority carrier lifetime. A temperature dependent optical pump-probe technique is used to measure the carrier lifetimes, and the e ect of a mid-gap defect level on the carrier recombination dynamics is reported. The Shockley-Read-Hall (SRH) defect state is found to be at energy of approximately -250 12 meV relative to the valence band edge of bulk GaSb for the entiremore » set of T2SL structures, even though the T2SL valence band edge shifts by 155 meV on the same scale. These results indicate that the SRH defect state in InAs/InAsSb T2SLs is singular and is nearly independent of the exact position of the T2SL bandgap or band edge energies. They also suggest the possibility of engineering the T2SL structure such that the SRH state is removed completely from the bandgap, a result that should signi cantly increase the minority carrier lifetime.« less

  11. Carrier and photon dynamics in a topological insulator Bi{sub 2}Te{sub 3}/GaN type II staggered heterostructure

    SciTech Connect (OSTI)

    Chaturvedi, P.; Chouksey, S.; Banerjee, D.; Ganguly, S.; Saha, D.

    2015-11-09

    We have demonstrated a type-II band-aligned heterostructure between pulsed laser deposited topological insulator bismuth telluride and metal organic-chemical-vapour deposited GaN on a sapphire substrate. The heterostructure shows a large valence band-offset of 3.27 eV as determined from x-ray photoelectron spectroscopy, which is close to the bandgap of GaN (3.4 eV). Further investigation using x-ray diffraction, Raman spectroscopy, and energy-dispersive x-ray spectrum reveals the stoichiometric and material properties of bismuth telluride on GaN. Steady state photon emission from GaN is found to be modulated by the charge transfer process due to diffusion across the junction. The time constant involved with the charge transfer process is found to be 0.6 ns by transient absorption spectroscopy. The heterostructure can be used for designing devices with different functionalities and improving the performance of the existing devices on GaN.

  12. Structural properties and band offset determination of p-channel mixed As/Sb type-II staggered gap tunnel field-effect transistor structure

    SciTech Connect (OSTI)

    Zhu, Y.; Jain, N.; Hudait, M. K.; Mohata, D. K.; Datta, S.; Lubyshev, D.; Fastenau, J. M.; Liu, A. K.

    2012-09-10

    The structural properties and band offset determination of p-channel staggered gap In{sub 0.7}Ga{sub 0.3}As/GaAs{sub 0.35}Sb{sub 0.65} heterostructure tunnel field-effect transistor (TFET) grown by molecular beam epitaxy (MBE) were investigated. High resolution x-ray diffraction revealed that the active layers are strained with respect to 'virtual substrate.' Dynamic secondary ion mass spectrometry confirmed an abrupt junction profile at the In{sub 0.7}Ga{sub 0.3}As/GaAs{sub 0.35}Sb{sub 0.65} heterointerface and minimal level of intermixing between As and Sb atoms. The valence band offset of 0.37 {+-} 0.05 eV was extracted from x-ray photoelectron spectroscopy. A staggered band lineup was confirmed at the heterointerface with an effective tunneling barrier height of 0.13 eV. Thus, MBE-grown staggered gap In{sub 0.7}Ga{sub 0.3}As/GaAs{sub 0.35}Sb{sub 0.65} TFET structures are a promising p-channel option to provide critical guidance for the future design of mixed As/Sb type-II based complementary logic and low power devices.

  13. Cabazon Wind Farm II | Open Energy Information

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    II Jump to: navigation, search Name Cabazon Wind Farm II Facility Cabazon Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Goldman Sachs...

  14. Harvest Wind Farm II | Open Energy Information

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    II Jump to: navigation, search Name Harvest Wind Farm II Facility Harvest Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner John...

  15. Kotzebue Wind Project II | Open Energy Information

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    II Jump to: navigation, search Name Kotzebue Wind Project II Facility Kotzebue Wind Project Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner...

  16. Tatanka Wind Project II | Open Energy Information

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    II Jump to: navigation, search Name Tatanka Wind Project II Facility Tatanka Wind Project Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner...

  17. Phased-Resolved Strain Measuremetns in Hydrated Ordinary Portland Cement Using Synchrotron x-Rays (Prop. 2003-033)

    SciTech Connect (OSTI)

    BIernacki, Joseph J.; Watkins, Thomas R; Parnham, C. J.; Hubbard, Camden R; Bai, J.

    2006-01-01

    X-ray diffraction methods developed for the determination of residual stress states in crystalline materials have been applied to study residual strains and strains because of mechanical loading of ordinary portland cement paste. Synchrotron X-rays were used to make in situ measurements of interplanar spacings in the calcium hydroxide (CH) phase of hydrated neat portland cement under uniaxial compression. The results indicate that strains on the order of 1/100 000 can be resolved providing an essentially new technique by which to measure the phase-resolved meso-scale mechanical behavior of cement under different loading conditions. Evaluation of these strain data in view of published elastic parameters for CH suggests that the CH carries a large fraction of the applied stress and that plastic interactions with the matrix are notable.

  18. Intensity- and temperature- dependent carrier recombination in InAs/In(As1-xSbx) type-II superlattices

    SciTech Connect (OSTI)

    Olson, Benjamin Varberg; Kadlec, Emil Andrew; Kim, Jin K.; Klem, John F.; Hawkins, Samuel D.; Shaner, Eric A.; Flatte, Michael E.

    2015-04-17

    Our time-resolved measurements for carrier recombination are reported as a midwave infrared InAs/InAs0.66Sb0.34 type-II superlattice (T2SL) function of pump intensity and sample temperature. By including the T2SL doping level in the analysis, the Shockley-Read-Hall (SRH), radiative, and Auger recombination components of the carrier lifetime are uniquely distinguished at each temperature. SRH is the limiting recombination mechanism for excess carrier densities less than the doping level (the low-injection regime) and temperatures less than 175 K. A SRH defect energy of 95 meV, either below the T2SL conduction-band edge or above the T2SL valence-band edge, is identified. Auger recombination limits the carrier lifetimes for excess carrier densities greater than the doping level (the high-injection regime) for all temperatures tested. Additionally, at temperatures greater than 225 K, Auger recombination also limits the low-injection carrier lifetime due to the onset of the intrinsic temperature range and large intrinsic carrier densities. Radiative recombination is found to not have a significant contribution to the total lifetime for all temperatures and injection regimes, with the data implying a photon recycling factor of 15. Using the measured lifetime data, diffusion currents are calculated and compared to calculated Hg1-xCdxTe dark current, indicating that the T2SL can have a lower dark current with mitigation of the SRH defect states. Our results illustrate the potential for InAs/InAs1-xSbx T2SLs as absorbers in infrared photodetectors.

  19. Timber Road II | Open Energy Information

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    Road II Jump to: navigation, search Name Timber Road II Facility Timber Road II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Horizon Wind...

  20. Nobles Wind Farm II | Open Energy Information

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    Farm II Jump to: navigation, search Name Nobles Wind Farm II Facility Nobles Wind Farm II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner...

  1. Shiloh II Wind Farm | Open Energy Information

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    Shiloh II Wind Farm Jump to: navigation, search Name Shiloh II Wind Farm Facility Shiloh II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner...

  2. Oliver II Wind Farm | Open Energy Information

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    II Wind Farm Jump to: navigation, search Name Oliver II Wind Farm Facility Oliver II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner NextEra...

  3. CWES II Wind Farm | Open Energy Information

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    II Wind Farm Jump to: navigation, search Name CWES II Wind Farm Facility CWES II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner SeaWest...

  4. Suppression of phosphate liberation from eutrophic lake sediment by using fly ash and ordinary Portland cement

    SciTech Connect (OSTI)

    Heng-Peng Ye; Fan-Zhong Chen; Yan-Qing Sheng; Guo-Ying Sheng; Jia-Mo Fu

    2006-08-15

    In this study, the effect of suppression on phosphate liberation from eutrophic lake sediment by using fly ash and ordinary Portland cement (OPC) was investigated by small scale experiment. A system including sediment, lake water, and several kinds of capping materials was designed to clarify the suppression of phosphate liberation from sediment under the anaerobic condition. The suppression efficiencies of fly ash, OPC and glass bead used as control material were also determined, and these effects were discussed. The suppression efficiency of glass bead was 44.4%, and those of fly ash and OPC were 84.4%, 94.9%, respectively. The suppression by fly ash and OPC was mainly carried out by the adsorption effect, in addition to the covering effect. The suppression efficiency depended on the amounts of the material used, and about 90% of liberated phosphate was suppressed by fly ash of 10.0 Kg m{sup -2}, and OPC of 6.0 Kg m{sup -2}. The concentrations of heavy metals, such as mercury, cadmium, lead, copper, zinc, chromium, silver, arsenic and nickel, in fly ash and OPC were lower than those in the environmental materials. And it was considered that the concentrations of heavy metals in fly ash and OPC were too low to influence the ecosystem in natural water region.

  5. Effect of temperature on the hydration of Portland cement blended with siliceous fly ash

    SciTech Connect (OSTI)

    Deschner, Florian; Lothenbach, Barbara; Winnefeld, Frank; Neubauer, Jrgen

    2013-10-15

    The effect of temperature on the hydration of Portland cement pastes blended with 50 wt.% of siliceous fly ash is investigated within a temperature range of 7 to 80 C. The elevation of temperature accelerates both the hydration of OPC and fly ash. Due to the enhanced pozzolanic reaction of the fly ash, the change of the composition of the CSH and the pore solution towards lower Ca and higher Al and Si concentrations is shifted towards earlier hydration times. Above 50 C, the reaction of fly ash also contributes to the formation of siliceous hydrogarnet. At 80 C, ettringite and AFm are destabilised and the released sulphate is partially incorporated into the CSH. The observed changes of the phase assemblage in dependence of the temperature are confirmed by thermodynamic modelling. The increasingly heterogeneous microstructure at elevated temperatures shows an increased density of the CSH and a higher coarse porosity. -- Highlights: The reaction of quartz powder at 80 C strongly enhances the compressive strength. Almost no strength increase of fly ash blended OPC at 80 C was found after 2 days. Siliceous hydrogarnet is formed upon the reaction of fly ash at high temperatures. Temperature dependent change of the system was simulated by thermodynamic modelling. Destabilisation of ettringite above 50 C correlates with sulphate content of CSH.

  6. Resistance of fly ash-Portland cement blends to thermal shock

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Pyatina, Tatiana; Sugama, Toshifumi

    2015-09-11

    Thermal-shock resistance of high-content fly ash-Portland cement blends was tested in the following ways. Activated and non-activated blends with 80-90 % fly ash F (FAF) were left to set at room temperature, then hydrated for 24 hours at 85°C and 24-more hours at 300°C and tested in five thermal-shock cycles (600°C heat - 25°C water quenching). XRD, and thermal gravimetric analyses, along with calorimetric measurements and SEM-EDX tests demonstrated that the activated blends form more hydrates after 24 hours at 300°C, and achieve a higher short-term compressive strength than do non-activated ones. Sodium meta-silicate and sodaash engendered the concomitant hydrationmore » of OPC and FAF, with the formation of mixed crystalline FAF-OPC hydrates and FAF hydrates, such as garranite, analcime, and wairakite, along with the amorphous FAF hydration products. In SS-activated and non-activated blends separate OPC (tobermorite) and FAF (amorphous gel) hydrates with no mixed crystalline products formed. The compressive strength of all tested blends decreased by nearly 50% after 5 thermal-shock test cycles. These changes in the compressive strength were accompanied by a marked decrease in the intensities of XRD patterns of the crystalline hydrates after the thermalshock. As a result, there was no significant difference in the performance of the blends with different activators« less

  7. Resistance of fly ash-Portland cement blends to thermal shock

    SciTech Connect (OSTI)

    Pyatina, Tatiana; Sugama, Toshifumi

    2015-09-11

    Thermal-shock resistance of high-content fly ash-Portland cement blends was tested in the following ways. Activated and non-activated blends with 80-90 % fly ash F (FAF) were left to set at room temperature, then hydrated for 24 hours at 85°C and 24-more hours at 300°C and tested in five thermal-shock cycles (600°C heat - 25°C water quenching). XRD, and thermal gravimetric analyses, along with calorimetric measurements and SEM-EDX tests demonstrated that the activated blends form more hydrates after 24 hours at 300°C, and achieve a higher short-term compressive strength than do non-activated ones. Sodium meta-silicate and sodaash engendered the concomitant hydration of OPC and FAF, with the formation of mixed crystalline FAF-OPC hydrates and FAF hydrates, such as garranite, analcime, and wairakite, along with the amorphous FAF hydration products. In SS-activated and non-activated blends separate OPC (tobermorite) and FAF (amorphous gel) hydrates with no mixed crystalline products formed. The compressive strength of all tested blends decreased by nearly 50% after 5 thermal-shock test cycles. These changes in the compressive strength were accompanied by a marked decrease in the intensities of XRD patterns of the crystalline hydrates after the thermalshock. As a result, there was no significant difference in the performance of the blends with different activators

  8. Time-variability of NO{sub x} emissions from Portland cement kilns

    SciTech Connect (OSTI)

    Walters, L.J. Jr.; May, M.S. III [PSM International, Dallas, TX (United States)] [PSM International, Dallas, TX (United States); Johnson, D.E. [Kansas State Univ., Manhattan, KS (United States). Dept. of Statistics] [Kansas State Univ., Manhattan, KS (United States). Dept. of Statistics; MacMann, R.S. [Penta Engineering, St. Louis, MO (United States)] [Penta Engineering, St. Louis, MO (United States); Woodward, W.A. [Southern Methodist Univ., Dallas, TX (United States). Dept. of Statistics] [Southern Methodist Univ., Dallas, TX (United States). Dept. of Statistics

    1999-03-01

    Due to the presence of autocorrelation between sequentially measured nitrogen oxide (NO{sub x}) concentrations in stack gas from portland cement kilns, the determination of the average emission rates and the uncertainty of the average has been improperly calculated by the industry and regulatory agencies. Documentation of permit compliance, establishment of permit levels, and the development and testing of control techniques for reducing NO{sub x} emissions at specific cement plants requires accurate and precise statistical estimates of parameters such as means, standard deviations, and variances. Usual statistical formulas such as for the variance of the sample mean only apply if sequential measurements of NO{sub x} emissions are independent. Significant autocorrelation of NO{sub x} emission measurements revealed that NO{sub x} concentration values measured by continuous emission monitors are not independent but can be represented by an autoregressive, moving average time series. Three orders of time-variability of NO{sub x} emission rates were determined from examination of continuous emission measurements from several cement kilns.

  9. Determination of lateral size distribution of type-II ZnTe/ZnSe stacked submonolayer quantum dots via spectral analysis of optical signature of the Aharanov-Bohm excitons

    SciTech Connect (OSTI)

    Ji, Haojie; Dhomkar, Siddharth; Roy, Bidisha; Kuskovsky, Igor L.; Shuvayev, Vladimir; Deligiannakis, Vasilios; Tamargo, Maria C.; Ludwig, Jonathan; Smirnov, Dmitry; Wang, Alice

    2014-10-28

    For submonolayer quantum dot (QD) based photonic devices, size and density of QDs are critical parameters, the probing of which requires indirect methods. We report the determination of lateral size distribution of type-II ZnTe/ZnSe stacked submonolayer QDs, based on spectral analysis of the optical signature of Aharanov-Bohm (AB) excitons, complemented by photoluminescence studies, secondary-ion mass spectroscopy, and numerical calculations. Numerical calculations are employed to determine the AB transition magnetic field as a function of the type-II QD radius. The study of four samples grown with different tellurium fluxes shows that the lateral size of QDs increases by just 50%, even though tellurium concentration increases 25-fold. Detailed spectral analysis of the emission of the AB exciton shows that the QD radii take on only certain values due to vertical correlation and the stacked nature of the QDs.

  10. Incorporation of trace elements in Portland cement clinker: Thresholds limits for Cu, Ni, Sn or Zn

    SciTech Connect (OSTI)

    Gineys, N.; Aouad, G.; Sorrentino, F.; Damidot, D.

    2011-11-15

    This paper aims at defining precisely, the threshold limits for several trace elements (Cu, Ni, Sn or Zn) which correspond to the maximum amount that could be incorporated into a standard clinker whilst reaching the limit of solid solution of its four major phases (C{sub 3}S, C{sub 2}S, C{sub 3}A and C{sub 4}AF). These threshold limits were investigated through laboratory synthesised clinkers that were mainly studied by X-ray Diffraction and Scanning Electron Microscopy. The reference clinker was close to a typical Portland clinker (65% C{sub 3}S, 18% C{sub 2}S, 8% C{sub 3}A and 8% C{sub 4}AF). The threshold limits for Cu, Ni, Zn and Sn are quite high with respect to the current contents in clinker and were respectively equal to 0.35, 0.5, 0.7 and 1 wt.%. It appeared that beyond the defined threshold limits, trace elements had different behaviours. Ni was associated with Mg as a magnesium nickel oxide (MgNiO{sub 2}) and Sn reacted with lime to form a calcium stannate (Ca{sub 2}SnO{sub 4}). Cu changed the crystallisation process and affected therefore the formation of C{sub 3}S. Indeed a high content of Cu in clinker led to the decomposition of C{sub 3}S into C{sub 2}S and of free lime. Zn, in turn, affected the formation of C{sub 3}A. Ca{sub 6}Zn{sub 3}Al{sub 4}O{sub 15} was formed whilst a tremendous reduction of C{sub 3}A content was identified. The reactivity of cements made with the clinkers at the threshold limits was followed by calorimetry and compressive strength measurements on cement paste. The results revealed that the doped cements were at least as reactive as the reference cement.

  11. Individual and combined effects of chloride, sulfate, and magnesium ions on hydrated Portland-cement paste

    SciTech Connect (OSTI)

    Poole, T.S.; Wakeley, L.D.; Young, C.L.

    1994-03-01

    Ground water with a high concentration of magnesium ion is known to cause deterioration to portland cement concretes. A proposed mechanism for this deterioration process published previously involves an approximate 1:1 replacement of Ca ions by Mg ions in the crystalline phases of hydrated cement. The current study was undertaken to determine which ions, among magnesium, chloride, and sulfate, cause deterioration; whether their deleterious action is individual or interdependent; and to relate this mechanism of deterioration to the outlook for a 100-yr service life of concretes used in mass placements at the Waste Isolation Pilot Plant. Loss of Ca ion by cement pastes was found to be strongly related to the concentration of Mg ion in simulated ground-water solutions in which the paste samples were aged. This was true of both salt- containing and conventional cement pastes. No other ion in the solutions exerted a strong effect on Ca loss. Ca ion left first from calcium hydroxide in the pastes, depleting all calcium hydroxide by 60 days. Some calcium silicate hydrate remained even after 90 days in the solutions with the highest concentration of Mg ion, while the paste samples deteriorated noticeably. The results indicated a mechanism that involves dissolution of Ca phases and transport of Ca ions to the surface of the sample, followed by formation of Mg-bearing phases at this reaction surface rather than directly by substitution within the microstructure of hydrated cement. Given that calcium hydroxide and calcium silicate hydrate are the principal strength-giving phases of hydrated cement, this mechanism indicates the likelihood of significant loss of integrity of a concrete exposed to Mg-bearing ground water at the WIPP. The rate of deterioration ultimately will depend on Mg-ion concentration, the microstructure materials of the concrete exposed to that groundwater, and the availability of brine.

  12. Hydromania II: Journey of the Oncorhynchus. Summer Science Camp Curriculum 1994.

    SciTech Connect (OSTI)

    Moura, Joan; Swerin, Rod

    1995-01-01

    The Hydromania II curriculum was written for the third in a series of summer science camp experiences targeting students in grades 4--6 who generally have difficulty accessing supplementary academic programs. The summer science camp in Portland is a collaborative effort between Bonneville Power Administration (BPA), the US Department of Energy (DOE), and the Portland Parks and Recreation Community Schools Program along with various other cooperating businesses and organizations. The curriculum has also been incorporated into other summer programs and has been used by teachers to supplement classroom activities. Camps are designed to make available, affordable learning experiences that are fun and motivating to students for the study of science and math. Inner-city, under-represented minorities, rural, and low-income families are particularly encouraged to enroll their children in the program.

  13. Microsoft PowerPoint - To NETL Albany Site from Portland, Oregon Airport (PDX) Directions.ppt [Compatibility Mode]

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Portland, Oregon Airport (PDX) 1. Take the AIRPORT EXIT RD. until it intersects I-205. 2. Follow I-205 SOUTH for 25 MILES to the intersection with I-5 SOUTH (Salem exit). 3. Follow I-5 SOUTH for approximately 60 miles to the 1 st Albany exit, EXIT 234B - ALBANY, PACIFIC BLVD, OREGON HIGHWAY 99. 4. Follow PACIFIC BLVD. to QUEEN AVE. 5. TURN RIGHT (WEST) on QUEEN AVE. 6 The ALBANY SITE is located on the LEFT just past WEST ALBANY HIGH SCHOOL 6. The ALBANY SITE is located on the LEFT just past WEST

  14. Raman spectra of Cu{sub 2}B{sup II}C{sup IV}X{sub 4}{sup VI} magnetic quaternary semiconductor compounds with tetragonal stannite type structure

    SciTech Connect (OSTI)

    Rincón, C. Quintero, M.; Power, Ch.; Moreno, E.; Quintero, E.; Morocoima, M.; Henao, J. A.; Macías, M. A.

    2015-05-28

    A comparative study of the Raman spectra of Cu{sub 2}B{sup II}C{sup IV}S{sub 4}{sup VI} and Cu{sub 2}B{sup II}C{sup IV}Se{sub 4}{sup VI}(where B = Mn or Fe) magnetic quaternary semiconductor compounds with stannite-type structure (I4{sup ¯}2m) has been done. Most of the fourteen Raman lines expected for these materials were observed in the spectra. The two strongest lines observed have been assigned to the IR inactive A{sub 1}{sup 1} and A{sub 1}{sup 2} stannite modes that originated from the motion of the S or Se anion around the Cu and C{sup IV} cations remaining at rest. The shift in the frequency of these two lines of about 150 cm{sup −1} to lower energies observed in Cu{sub 2}B{sup II}C{sup IV}Se{sub 4}{sup VI} compounds as compared to those in Cu{sub 2}B{sup II}C{sup IV}S{sub 4}{sup VI} ones, can then be explained as due to the anion mass effect. Based on the fact that values of these frequencies depend mainly on anion mass and bond-stretching forces between nearest-neighbor atoms, the vibrational frequencies v{sup ¯}(A{sub 1}{sup 2}) and v{sup ¯}(A{sub 1}{sup 2}) of both modes for several Cu{sub 2}B{sup II}C{sup IV}X{sub 4}{sup VI} stannite compounds (where X = S, Se, or Te) very close to the experimental data reported for these materials were calculated from a simple model that relates these stretching forces to the anion-cation bond-distances.

  15. Effects of setting regulators on the efficiency of an inorganic acid based alkali-free accelerator reacting with a Portland cement

    SciTech Connect (OSTI)

    Maltese, C. . E-mail: Building.lab@mapei.it; Pistolesi, C.; Bravo, A.; Cella, F.; Cerulli, T.; Salvioni, D.

    2007-04-15

    Today, in the field of underground constructions, alkali-free accelerators are commonly employed, during tunnel excavation, to allow flash concrete setting. In this way, the cementitious sprayed material can firmly bond to the tunnel walls, controlling the convergence (the tendency of the section to squeeze). Their efficiency may be related to many parameters like: cement type, setting regulator, concrete composition, working temperature. Nevertheless, the influence of such factors on the accelerator performance has not been clarified yet. The accelerator efficacy is evaluated by real spraying test in job site or, when only laboratory equipment are available, by measuring the final setting times of cement systems admixed with the accelerator. Several alkali-free flash setting admixtures are available on the market. They can be divided into two main categories both containing aluminium sulphate complexes stabilized either by inorganic acids or by organic acids. In this paper, the influence of different setting regulators on the performances of an inorganic acid based alkali-free accelerator was analysed. Portland cement samples were obtained by mixing clinker with gypsum, {alpha}-hemihydrate, {beta}-hemihydrate or anhydrite. The setting regulator instantaneous dissolution rates were evaluated through conductivity measurements. The setting time of cement pastes with and without the accelerator was measured. It was found that the shorter the final setting time (therefore the more efficient is the accelerator) the lower the setting regulator instantaneous dissolution rate. In order to understand this phenomenon, a comparison was performed between accelerated cement paste samples containing the setting regulator with the highest ({beta}-hemihydrate) and the lowest instantaneous dissolution rate (anhydrite). The analytical work included morphological (Environmental Scanning Electron Microscopy-Field Emission Gun - ESEM-FEG), crystal-chemical (X-Ray Powder Diffraction

  16. Topoisomerase II Structure Suggests Novel DNA Cleavage Mechanism

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Topoisomerase II Structure Suggests Novel DNA Cleavage Mechanism Print Type II topoisomerases are molecular machines that regulate DNA supercoiling and separate interlocked...

  17. Solano Wind Project- phase II | Open Energy Information

    Open Energy Info (EERE)

    search Name Solano Wind Project- phase II Facility Solano Wind Project- phase II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner...

  18. Lamar Wind Energy Project II | Open Energy Information

    Open Energy Info (EERE)

    II Jump to: navigation, search Name Lamar Wind Energy Project II Facility Lamar Wind Energy Project Sector Wind energy Facility Type Commercial Scale Wind Facility Status In...

  19. Lincoln Wind Energy Facility II | Open Energy Information

    Open Energy Info (EERE)

    II Jump to: navigation, search Name Lincoln Wind Energy Facility II Facility Lincoln Wind Energy Facility Sector Wind energy Facility Type Community Wind Facility Status In Service...

  20. NREL Research Wind Farm II | Open Energy Information

    Open Energy Info (EERE)

    II Jump to: navigation, search Name NREL Research Wind Farm II Facility NREL Research Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Developer...

  1. Cedar Creek Wind Farm II (Nordex) | Open Energy Information

    Open Energy Info (EERE)

    Nordex) Jump to: navigation, search Name Cedar Creek Wind Farm II (Nordex) Facility Cedar Creek II (Nordex) Sector Wind energy Facility Type Commercial Scale Wind Facility Status...

  2. Whitewater Hill Wind Farm II | Open Energy Information

    Open Energy Info (EERE)

    II Jump to: navigation, search Name Whitewater Hill Wind Farm II Facility Whitewater Hill Sector Wind energy Facility Type Community Wind Facility Status In Service Owner Cannon...

  3. Klondike III II Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    II Wind Farm Jump to: navigation, search Name Klondike III II Wind Farm Facility Klondike III Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service...

  4. Langdon II - Otter Tail Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    Otter Tail Wind Farm Jump to: navigation, search Name Langdon II - Otter Tail Wind Farm Facility Langdon II - Otter Tail Sector Wind energy Facility Type Commercial Scale Wind...

  5. Oak Creek Energy Systems Wind Farm II | Open Energy Information

    Open Energy Info (EERE)

    II Jump to: navigation, search Name Oak Creek Energy Systems Wind Farm II Facility Oak Creek Energy Systems Sector Wind energy Facility Type Commercial Scale Wind Facility Status...

  6. Victory Gardens Phase IV Wind Farm II | Open Energy Information

    Open Energy Info (EERE)

    II Jump to: navigation, search Name Victory Gardens Phase IV Wind Farm II Facility Victory Gardens- Phase IV Sector Wind energy Facility Type Commercial Scale Wind Facility Status...

  7. Medicine Bow Wind Farm II | Open Energy Information

    Open Energy Info (EERE)

    II Jump to: navigation, search Name Medicine Bow Wind Farm II Facility Medicine Bow Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Platte...

  8. Buffalo Mountain Wind Energy Center II | Open Energy Information

    Open Energy Info (EERE)

    II Jump to: navigation, search Name Buffalo Mountain Wind Energy Center II Facility Buffalo Mountain Wind Energy Center Sector Wind energy Facility Type Commercial Scale Wind...

  9. Green Ridge Power Wind Farm II | Open Energy Information

    Open Energy Info (EERE)

    II Jump to: navigation, search Name Green Ridge Power Wind Farm II Facility Green Ridge Power Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service...

  10. Characterization using thermomechanical and differential thermal analysis of the sinterization of Portland clinker doped with CaF{sub 2}

    SciTech Connect (OSTI)

    Dominguez, O.; Torres-Castillo, A.; Flores-Velez, L.M.; Torres, R.

    2010-04-15

    In this work, the sintering process of Portland cement was studied by combining thermomechanical analysis (TMA) and differential thermal analysis (DTA), together with X-ray diffraction (XRD) and scanning electron microscopy (SEM). Thermal analysis results employing both techniques indicted that phase transformations appeared at lower temperatures when CaF{sub 2} was incorporated in the raw materials. Besides, it was observed at high temperature that in some phase transformations TMA conducts to better resolution compared with the DTA measurements. Furthermore, mechanical properties and X-ray diffraction patterns corroborate the TMA and DTA results, corroborating that the final amount of alite (Ca{sub 3}SiO{sub 5}) is higher when a certain amount of CaF{sub 2} was present during the clinkerization process.

  11. Demonstration Assessment of Light-Emitting Diode (LED) Retrofit Lamps at the Lobby of the Bonneville Power Administration, Portland, OR

    SciTech Connect (OSTI)

    Miller, Naomi

    2011-07-01

    This report describes the process and results of a demonstration of solid-state lighting (SSL) technology in the lobby of the Bonneville Power Administration (BPA) headquarters building in Portland, Oregon. The project involved a simple retrofit of 32 track lights used to illuminate historical black-and-white photos and printed color posters from the 1930s and 1940s. BPA is a federal power marketing agency in the Northwestern United States, and selected this prominent location to demonstrate energy efficient light-emitting diode (LED) retrofit options that not only can reduce the electric bill for their customers but also provide attractive alternatives to conventional products, in this case accent lighting for BPA's historical artwork.

  12. FERN Blue Ribbon Wind Farm II* | Open Energy Information

    Open Energy Info (EERE)

    II* Jump to: navigation, search Name FERN Blue Ribbon Wind Farm II* Facility FERN Blue Ribbon Wind Farm II* Sector Wind energy Facility Type Offshore Wind Facility Status Proposed...

  13. Minco II Wind Energy Center | Open Energy Information

    Open Energy Info (EERE)

    Minco II Wind Energy Center Jump to: navigation, search Name Minco II Wind Energy Center Facility Minco II Wind Energy Center Sector Wind energy Facility Type Commercial Scale Wind...

  14. Hull Wind II Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    II Wind Farm Jump to: navigation, search Name Hull Wind II Wind Farm Facility Hull II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Hull...

  15. Hopkins Ridge II Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    II Wind Farm Jump to: navigation, search Name Hopkins Ridge II Wind Farm Facility Hopkins Ridge II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service...

  16. Panther Creek II Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    II Wind Farm Jump to: navigation, search Name Panther Creek II Wind Farm Facility Panther Creek II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service...

  17. Woodward Mountain I & II Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    Mountain I & II Wind Farm Jump to: navigation, search Name Woodward Mountain I & II Wind Farm Facility Woodward Mountain Wind Ranch I and II Sector Wind energy Facility Type...

  18. Michigan Wind II Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    II Wind Farm Jump to: navigation, search Name Michigan Wind II Wind Farm Facility Michigan Wind II Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status...

  19. North Dakota Wind II Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    II Wind Farm Jump to: navigation, search Name North Dakota Wind II Wind Farm Facility North Dakota Wind II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In...

  20. Lake Benton II Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    II Wind Farm Jump to: navigation, search Name Lake Benton II Wind Farm Facility Lake Benton II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service...

  1. Smoky Hills II Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    Smoky Hills II Wind Farm Jump to: navigation, search Name Smoky Hills II Wind Farm Facility Smoky Hills II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In...

  2. Tres Vaqueros II Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    II Wind Farm Jump to: navigation, search Name Tres Vaqueros II Wind Farm Facility Tres Vaqueros II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service...

  3. Venture Wind II Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    II Wind Farm Jump to: navigation, search Name Venture Wind II Wind Farm Facility Venture Wind II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service...

  4. Nine Canyon Wind Farm Phase II | Open Energy Information

    Open Energy Info (EERE)

    Farm Phase II Jump to: navigation, search Name Nine Canyon Wind Farm Phase II Facility Nine Canyon Wind Farm Phase II Sector Wind energy Facility Type Commercial Scale Wind...

  5. Meadow Lake II (3Q10) | Open Energy Information

    Open Energy Info (EERE)

    II (3Q10) Jump to: navigation, search Name Meadow Lake II (3Q10) Facility Meadow Lake II (3Q10) Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service...

  6. Dry Lake II Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    II Wind Farm Jump to: navigation, search Name Dry Lake II Wind Farm Facility Dry Lake II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner...

  7. Foote Creek Rim II Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    II Wind Farm Jump to: navigation, search Name Foote Creek Rim II Wind Farm Facility Foote Creek Rim II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In...

  8. I 95 Landfill Phase II Biomass Facility | Open Energy Information

    Open Energy Info (EERE)

    I 95 Landfill Phase II Biomass Facility Jump to: navigation, search Name I 95 Landfill Phase II Biomass Facility Facility I 95 Landfill Phase II Sector Biomass Facility Type...

  9. Meridian Way II Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    II Wind Farm Jump to: navigation, search Name Meridian Way II Wind Farm Facility Meridian Way II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service...

  10. MinWind I & II Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    I & II Wind Farm Jump to: navigation, search Name MinWind I & II Wind Farm Facility MinWind I & II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service...

  11. Wild Horse II Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    II Wind Farm Jump to: navigation, search Name Wild Horse II Wind Farm Facility Wild Horse II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner...

  12. Impact of substrate temperature on the structural and optical properties of strain-balanced InAs/InAsSb type-II superlattices grown by molecular beam epitaxy

    SciTech Connect (OSTI)

    Liu, Shi; Li, Hua; Cellek, Oray O.; Ding, Ding; Lin, Zhi-Yuan; Steenbergen, Elizabeth H.; He, Zhao-Yu; Johnson, Shane R.; Zhang, Yong-Hang; Center for Photonics Innovation, Arizona State University, Tempe, Arizona 85287 ; Shen, Xiao-Meng; School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, Arizona 85287 ; Fan, Jin; Smith, David J.; Department of Physics, Arizona State University, Tempe, Arizona 85287 ; Lu, Jing

    2013-02-18

    Molecular beam epitaxial growth of strain-balanced InAs/InAs{sub 1-x}Sb{sub x} type-II superlattices on GaSb substrates has been investigated for substrate temperatures from 400 Degree-Sign C to 450 Degree-Sign C. The Sb composition is found to vary linearly with substrate temperature at constant V/III ratios. For samples grown at the optimized substrate temperature (410 Degree-Sign C), superlattice zero-order peak full-width at half-maximums are routinely less than 25 arc sec using high-resolution X-ray diffraction. Cross-sectional transmission electron microscopy images show the absence of any visible defects. Strong photoluminescence covers a wavelength range from 5.5 to 13 {mu}m at 12 K. Photoluminescence linewidth simulations show satisfactory agreement with experiments.

  13. Photosystem II

    ScienceCinema (OSTI)

    James Barber

    2010-09-01

    James Barber, Ernst Chain Professor of Biochemistry at Imperial College, London, gives a BSA Distinguished Lecture titled, "The Structure and Function of Photosystem II: The Water-Splitting Enzyme of Photosynthesis."

  14. PARS II

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ... September 9, 2010 (V1.1) PARS II 103 Project Updating and Reporting Page 49 4. Click to begin entering funding values. 5. Click + sign to expand detail for OPC, TEC, and UND, if ...

  15. Normal and refractory concretes for LMFBR applications. Volume 1. Review of literature on high-temperature behavior of portland cement and refractory concretes. Final report

    SciTech Connect (OSTI)

    Bazant, Z.P.; Chern, J.C.; Abrams, M.S.; Gillen, M.P.

    1982-06-01

    The extensive literature on the properties and behavior at elevated temperature of portland cement concrete and various refractory concretes was reviewed to collect in concise form the physical and chemical properties of castable refractory concretes and of conventional portland cement concretes at elevated temperature. This survey, together with an extensive bibliography of source documents, is presented in Volume 1. A comparison was made of these properties, the relative advantages of the various concretes was evaluated for possible liquid metal fast breeder reactor applications, and a selection was made of several materials of interest for such applications. Volume 2 concludes with a summary of additional knowledge needed to support such uses of these materials together with recommendations on research to provide that knowledge.

  16. National Synchrotron Light Source II (NSLS-II) Project | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    National Synchrotron Light Source II (NSLS-II) Project National Synchrotron Light Source II (NSLS-II) Project National Synchrotron Light Source II (NSLS-II) Project Frank ...

  17. About APPLE II Operation

    SciTech Connect (OSTI)

    Schmidt, T.; Zimoch, D.

    2007-01-19

    The operation of an APPLE II based undulator beamline with all its polarization states (linear horizontal and vertical, circular and elliptical, and continous variation of the linear vector) requires an effective description allowing an automated calculation of gap and shift parameter as function of energy and operation mode. The extension of the linear polarization range from 0 to 180 deg. requires 4 shiftable magnet arrrays, permitting use of the APU (adjustable phase undulator) concept. Studies for a pure fixed gap APPLE II for the SLS revealed surprising symmetries between circular and linear polarization modes allowing for simplified operation. A semi-analytical model covering all types of APPLE II and its implementation will be presented.

  18. Examples of cooler reflective streets for urban heat-island mitigation : Portland cement concrete and chip seals

    SciTech Connect (OSTI)

    Pomerantz, M.; Akbari, H.; Chang, S.-C.; Levinson, R.; Pon, B.

    2003-04-30

    Part of the urban heat island effect can be attributed to dark pavements that are commonly used on streets and parking lots. In this paper we consider two light colored, hence cooler, alternative paving materials that are in actual use in cities today. These are Portland cement concrete (PCC) pavements and chip seals. We report measurements of the albedos of some PCC and chip sealed pavements in the San Francisco Bay Area. The albedos of the PCC pavements ranged from about 0.18 to 0.35. The temperatures of some PCC pavements are also measured and calculated. We then consider how the albedos of the constituent materials of the PCC (stone, sand and cement) contribute to the albedos of the resulting finished concrete. The albedos of a set of chip sealed pavements in San Jose, CA, were measured and correlated with the times of their placement. It is found that the albedos decrease with age (and use) but remain higher than that of standard asphalt concrete (AC) for about five years. After t hat, the albedos of the chip seals are about 0.12, similar to aged AC. The fact that many PCC pavements have albedos at least twice as high as aged AC suggests that it is possible to have pavement albedos that remain high for many years.

  19. Role of amyloids in type II diabetes

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    partially removing a lipid bilayer (model membrane) on a solid support. Schematic of human amyloid (blue) partially removing a lipid bilayer (model membrane) on a solid support. ...

  20. Effect of sidewall surface recombination on the quantum efficiency in a Y{sub 2}O{sub 3} passivated gated type-II InAs/GaSb long-infrared photodetector array

    SciTech Connect (OSTI)

    Chen, G.; Hoang, A. M.; Bogdanov, S.; Haddadi, A.; Darvish, S. R.; Razeghi, M.

    2013-11-25

    Y{sub 2}O{sub 3} was applied to passivate a long-wavelength infrared type-II superlattice gated photodetector array with 50% cut-off wavelength at 11 μm, resulting in a saturated gate bias that was 3 times lower than in a SiO{sub 2} passivated array. Besides effectively suppressing surface leakage, gating technique exhibited its ability to enhance the quantum efficiency of 100 × 100 μm size mesa from 51% to 57% by suppressing sidewall surface recombination. At 77 K, the gated photodetector showed dark current density and resistance-area product at −300 mV of 2.5 × 10{sup −5} A/cm{sup 2} and 1.3 × 10{sup 4} Ω cm{sup 2}, respectively, and a specific detectivity of 1.4 × 10{sup 12} Jones.

  1. BORE II

    SciTech Connect (OSTI)

    2015-08-01

    Bore II, co-developed by Berkeley Lab researchers Frank Hale, Chin-Fu Tsang, and Christine Doughty, provides vital information for solving water quality and supply problems and for improving remediation of contaminated sites. Termed "hydrophysical logging," this technology is based on the concept of measuring repeated depth profiles of fluid electric conductivity in a borehole that is pumping. As fluid enters the wellbore, its distinct electric conductivity causes peaks in the conductivity log that grow and migrate upward with time. Analysis of the evolution of the peaks enables characterization of groundwater flow distribution more quickly, more cost effectively, and with higher resolution than ever before. Combining the unique interpretation software Bore II with advanced downhole instrumentation (the hydrophysical logging tool), the method quantifies inflow and outflow locations, their associated flow rates, and the basic water quality parameters of the associated formation waters (e.g., pH, oxidation-reduction potential, temperature). In addition, when applied in conjunction with downhole fluid sampling, Bore II makes possible a complete assessment of contaminant concentration within groundwater.

  2. BORE II

    Energy Science and Technology Software Center (OSTI)

    2015-08-01

    Bore II, co-developed by Berkeley Lab researchers Frank Hale, Chin-Fu Tsang, and Christine Doughty, provides vital information for solving water quality and supply problems and for improving remediation of contaminated sites. Termed "hydrophysical logging," this technology is based on the concept of measuring repeated depth profiles of fluid electric conductivity in a borehole that is pumping. As fluid enters the wellbore, its distinct electric conductivity causes peaks in the conductivity log that grow and migratemore » upward with time. Analysis of the evolution of the peaks enables characterization of groundwater flow distribution more quickly, more cost effectively, and with higher resolution than ever before. Combining the unique interpretation software Bore II with advanced downhole instrumentation (the hydrophysical logging tool), the method quantifies inflow and outflow locations, their associated flow rates, and the basic water quality parameters of the associated formation waters (e.g., pH, oxidation-reduction potential, temperature). In addition, when applied in conjunction with downhole fluid sampling, Bore II makes possible a complete assessment of contaminant concentration within groundwater.« less

  3. Ii1

    Office of Legacy Management (LM)

    -r Ii1 5uitc 79% 955 L%fan~Plu,S.W.. Worhingm. D.C.200242134, 7117-03.87.cdy.43 23 September 1987 Mr. Andrew Wallo, III, NE-23 Division of Facility & Site Decommissioning Projects U.S. Department of Energy Germantown, Maryland 20545 Dear Mr. Wallo: ELIMINATION RECOMMENDATION -- COLLEGES AND UNIVtRSITIES The attached elimination recommendation was prepared in accordance.)l- flL.o* with your suggestion during our meeting on 22 September, The recommendat:on y0.0-02 includes 26 colleges and

  4. Part II

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    80 Thursday, No. 251 December 31, 2015 Part II Department of Defense General Services Administration National Aeronautics and Space Administration 48 CFR Chapter 1 Federal Acquisition Regulations; Final Rules VerDate Sep<11>2014 17:22 Dec 30, 2015 Jkt 238001 PO 00000 Frm 00001 Fmt 4717 Sfmt 4717 E:\FR\FM\31DER2.SGM 31DER2 tkelley on DSK3SPTVN1PROD with RULES2 81886 Federal Register / Vol. 80, No. 251 / Thursday, December 31, 2015 / Rules and Regulations DEPARTMENT OF DEFENSE GENERAL

  5. PARS II TRAINING

    Broader source: Energy.gov [DOE]

    PARS II 102 Monthly Updating and Reporting Training Workbook (PARS II Release 1.1), September 13, 2010.

  6. Camp William Utah National Guard Wind Farm II | Open Energy Informatio...

    Open Energy Info (EERE)

    II Jump to: navigation, search Name Camp William Utah National Guard Wind Farm II Facility Camp William Utah National Guard Sector Wind energy Facility Type Community Wind Facility...

  7. Wilton Wind Energy Center II I | Open Energy Information

    Open Energy Info (EERE)

    I Jump to: navigation, search Name Wilton Wind Energy Center II I Facility Wilton Wind Energy Center II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In...

  8. Green Mountain Energy Wind Farm II | Open Energy Information

    Open Energy Info (EERE)

    II Jump to: navigation, search Name Green Mountain Energy Wind Farm II Facility AMP-OhioGreen Mountain Energy Wind Farm Sector Wind energy Facility Type Commercial Scale Wind...

  9. Cedar Creek Wind Farm II (GE) | Open Energy Information

    Open Energy Info (EERE)

    GE) Jump to: navigation, search Name Cedar Creek Wind Farm II (GE) Facility Cedar Creek II (GE) Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service...

  10. Minn-Dakota Wind Farm II | Open Energy Information

    Open Energy Info (EERE)

    II Jump to: navigation, search Name Minn-Dakota Wind Farm II Facility Minn-Dakota Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner...