Sample records for blocks sedimentary layering

  1. Organic photosensitive optoelectronic device having a phenanthroline exciton blocking layer

    DOE Patents [OSTI]

    Thompson, Mark E. (Anaheim Hills, CA); Li, Jian (Los Angeles, CA); Forrest, Stephen (Princeton, NJ); Rand, Barry (Princeton, NJ)

    2011-02-22T23:59:59.000Z

    An organic photosensitive optoelectronic device, having an anode, a cathode, and an organic blocking layer between the anode and the cathode is described, wherein the blocking layer comprises a phenanthroline derivative, and at least partially blocks at least one of excitons, electrons, and holes.

  2. Organic photovoltaic cell incorporating electron conducting exciton blocking layers

    DOE Patents [OSTI]

    Forrest, Stephen R.; Lassiter, Brian E.

    2014-08-26T23:59:59.000Z

    The present disclosure relates to photosensitive optoelectronic devices including a compound blocking layer located between an acceptor material and a cathode, the compound blocking layer including: at least one electron conducting material, and at least one wide-gap electron conducting exciton blocking layer. For example, 3,4,9,10 perylenetetracarboxylic bisbenzimidazole (PTCBI) and 1,4,5,8-napthalene-tetracarboxylic-dianhydride (NTCDA) function as electron conducting and exciton blocking layers when interposed between the acceptor layer and cathode. Both materials serve as efficient electron conductors, leading to a fill factor as high as 0.70. By using an NTCDA/PTCBI compound blocking layer structure increased power conversion efficiency is achieved, compared to an analogous device using a conventional blocking layers shown to conduct electrons via damage-induced midgap states.

  3. SEDIMENTARY SEDIMENTARY

    E-Print Network [OSTI]

    Gani, M. Royhan

    Colorado School of Mines #12;The Sedimentary Record September 2004 | 3 CORRECTION: In the Field Notes.A. George, 1999, Applied palaeontology: a critical stratigraphic tool in Gulf of Mexico exploration and exploitation, in R.W. Jones and M.D. Simmons (eds.), Biostratigraphy in Production and Development Geology

  4. DECOUPLING AND BLOCK PRECONDITIONING FOR SEDIMENTARY BASIN SIMULATIONS IN TEMIS3D

    E-Print Network [OSTI]

    Bath, University of

    generation, multi-phase Darcy ow and oil and gas mi- gration is then calculated forward in time adding layer of a complex system of time dependent, three-dimensional partial di#11;erential equations (PDE) of mixed) of this system leads to very ill-conditioned, strongly non-symmetric and large systems of linear equations

  5. Organic photosensitive cells having a reciprocal-carrier exciton blocking layer

    DOE Patents [OSTI]

    Rand, Barry P. (Princeton, NJ); Forrest, Stephen R. (Princeton, NJ); Thompson, Mark E. (Anaheim Hills, CA)

    2007-06-12T23:59:59.000Z

    A photosensitive cell includes an anode and a cathode; a donor-type organic material and an acceptor-type organic material forming a donor-acceptor junction connected between the anode and the cathode; and an exciton blocking layer connected between the acceptor-type organic material of the donor-acceptor junction and the cathode, the blocking layer consisting essentially of a material that has a hole mobility of at least 10.sup.-7 cm.sup.2/V-sec or higher, where a HOMO of the blocking layer is higher than or equal to a HOMO of the acceptor-type material.

  6. Analysis of leakage current in buried heterostructure lasers with semiinsulating blocking layers

    SciTech Connect (OSTI)

    Asada, S.; Sugou, S.; Kasahara, K.; Kumashiro, S.

    1989-06-01T23:59:59.000Z

    An effective device structure for reducing leakage current in buried heterostructure laser diodes with semiinsulating InP blocking layers has been analyzed with the use of a semiconductor device simulator in which deep trap levels are taken into account. Adding a thin wide-bandgap InGaP layer in the semiinsulating region at the mesa boundaries as a barrier to prevent double injection into the semiinsulating region is predicted to be markedly effective in reducing leakage current.

  7. Dilute Group III-V nitride intermediate band solar cells with contact blocking layers

    DOE Patents [OSTI]

    Walukiewicz, Wladyslaw (Kensington, CA); Yu, Kin Man (Lafayette, CA)

    2012-07-31T23:59:59.000Z

    An intermediate band solar cell (IBSC) is provided including a p-n junction based on dilute III-V nitride materials and a pair of contact blocking layers positioned on opposite surfaces of the p-n junction for electrically isolating the intermediate band of the p-n junction by blocking the charge transport in the intermediate band without affecting the electron and hole collection efficiency of the p-n junction, thereby increasing open circuit voltage (V.sub.OC) of the IBSC and increasing the photocurrent by utilizing the intermediate band to absorb photons with energy below the band gap of the absorber layers of the IBSC. Hence, the overall power conversion efficiency of a IBSC will be much higher than an conventional single junction solar cell. The p-n junction absorber layers of the IBSC may further have compositionally graded nitrogen concentrations to provide an electric field for more efficient charge collection.

  8. Mesozoic sedimentary rock features resulting from volume movements required in drape folds at corners of basement blocks--Casper Mountain Area, Wyoming

    E-Print Network [OSTI]

    Vaughn, Patty Holyfield

    1976-01-01T23:59:59.000Z

    environment resulted in 700 feet of varicolored shale and sandstone of Jurassic age which lie unconformably upon the Triassic rocks. During Cretaceous time 5, 000 feet of marine sandstone and shale were deposited unconformably on tne Jurassic sediments...MESOZOIC SEDIMENTARY ROCK FEATURES RESULTING FROM VOLUME MOVEMENTS REQUIRED IN DRAPE FOLDS AT CORNERS OF BASEMENT BIOCKS ? CASPER MOUNTAIN AREA, MYOMING A Thesis by PATTY HOLYFIELD VAUGHN Submitted to the Graduate College of Texas A...

  9. Layered Space-Time Block Codes with Iterative Decoding Ali Raza, John Schormans and Xiaodong Chen

    E-Print Network [OSTI]

    Haddadi, Hamed

    ) of the subsequent layers. This effect is known as error propagation (EP). Genie-BLAST is a special ideal case receive antennas. Fig. 2 shows the original BLAST case in which the effect of EP) are commonly used due to their lower complexity but make the system more susceptible to the effects of error

  10. On the importance of AlGaN electron blocking layer design for GaN-based light-emitting diodes

    SciTech Connect (OSTI)

    Sheng Xia, Chang, E-mail: xiachsh@crosslight.com.cn; Simon Li, Z. M.; Sheng, Yang [Crosslight Software Inc., China Branch, Suite 906, Building JieDi, 2790 Zhongshan Bei Road, Shanghai 200063 (China)] [Crosslight Software Inc., China Branch, Suite 906, Building JieDi, 2790 Zhongshan Bei Road, Shanghai 200063 (China)

    2013-12-02T23:59:59.000Z

    There has been confusion regarding the usefulness of AlGaN electron blocking layer (EBL) in GaN-based light-emitting diodes (LEDs) with some published experimental data indicating that the LEDs without EBL performed better than those with it. InGaN/GaN LEDs have been investigated numerically to analyze its actual effect in these devices. Simulation results show that hole blocking effect of EBL mainly determines the effectiveness of using it which is more sensitive to its Al composition, band offset ratio, and polarization charges. It is found that the choice of Al composition is critical for EBL to improve the optical performance of GaN-based LEDs.

  11. Advantages of the Blue InGaN/GaN Light-Emitting Diodes with an AlGaN/GaN/AlGaN Quantum Well Structured Electron Blocking Layer

    E-Print Network [OSTI]

    Demir, Hilmi Volkan

    Advantages of the Blue InGaN/GaN Light-Emitting Diodes with an AlGaN/GaN/AlGaN Quantum Well ABSTRACT: InGaN/GaN light-emitting diodes (LEDs) with p-(AlGaN/GaN/AlGaN) quantum well structured electron. The proposed QWEBL LED structure, in which a p-GaN QW layer is inserted in the p-AlGaN electron blocking layer

  12. Charge Profiling of the p-AlGaN Electron Blocking Layer in AlGaInN Light Emitting Diode Structures

    E-Print Network [OSTI]

    Wetzel, Christian M.

    -layers. Placement, doping, and dimensions thereof are deemed critical to the stabilization of the injection-3 . A spacer layer of 20 ­ 100 nm separates the n-side and the quantum well region. Like the barrier

  13. High Precision Radiometric Dating of Sedimentary Materials

    SciTech Connect (OSTI)

    Hanson, G. N.

    2006-09-19T23:59:59.000Z

    To develop field, petrographic and geochemical criteria to allow high precision U-Pb dating of sedimentary minerals within rapidly deposited sequences of carbonate and clastic rocks.

  14. GaInN light-emitting diodes using separate epitaxial growth for the p-type region to attain polarization-inverted electron-blocking layer, reduced electron leakage, and improved hole injection

    SciTech Connect (OSTI)

    Meyaard, David S., E-mail: meyaad@rpi.edu; Lin, Guan-Bo; Ma, Ming; Fred Schubert, E. [Future Chips Constellation, Department of Electrical, Computer, and Systems Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180 (United States)] [Future Chips Constellation, Department of Electrical, Computer, and Systems Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180 (United States); Cho, Jaehee [Future Chips Constellation, Department of Electrical, Computer, and Systems Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180 (United States) [Future Chips Constellation, Department of Electrical, Computer, and Systems Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180 (United States); Semiconductor Physics Research Center, School of Semiconductor and Chemical Engineering, Chonbuk National University, Jeonju 561-756 (Korea, Republic of); Han, Sang-Heon; Kim, Min-Ho; Shim, HyunWook; Sun Kim, Young [LED Business, Samsung Electronics, Yongin 446-920 (Korea, Republic of)] [LED Business, Samsung Electronics, Yongin 446-920 (Korea, Republic of)

    2013-11-11T23:59:59.000Z

    A GaInN light-emitting diode (LED) structure is analyzed that employs a separate epitaxial growth for the p-type region, i.e., the AlGaN electron-blocking layer (EBL) and p-type GaN cladding layer, followed by wafer or chip bonding. Such LED structure has a polarization-inverted EBL and allows for uncompromised epitaxial-growth optimization of the p-type region, i.e., without the need to consider degradation of the quantum-well active region during p-type region growth. Simulations show that such an LED structure reduces electron leakage, reduces the efficiency droop, improves hole injection, and has the potential to extend high efficiencies into the green spectral region.

  15. Geology, exploration status of Uruguay's sedimentary basins

    SciTech Connect (OSTI)

    Goso, C.; Santa Ana, H. de (Administracion Nacional de Combustibles, Alcohol y Portland (Uruguay))

    1994-02-07T23:59:59.000Z

    This article attempts to present the geological characteristics and tectonic and sedimentary evolution of Uruguayan basins and the extent to which they have been explored. Uruguay is on the Atlantic coast of South America. The country covers about 318,000 sq km, including offshore and onshore territories corresponding to more than 65% of the various sedimentary basins. Four basins underlie the country: the Norte basin, the Santa Lucia basin, the offshore Punta del Este basin, and the offshore-onshore Pelotas-Merin basin. The Norte basin is a Paleozoic basin while the others are Mesozoic basins. Each basin has been explored to a different extent, as this paper explains.

  16. Reconstruction of Sedimentary Rock Based on Mechanical Properties

    E-Print Network [OSTI]

    Jin, Guodong; Patzek, Tad W.; Silin, Dmitry B.

    2008-01-01T23:59:59.000Z

    Journal of Sedimentary Petrology 47, 3 (1977). [48] ITASCA,E. G. Ehlers and H. Blatt, Petrology: igneous, sedimen- taryT. Maurice, Sedimentary Petrology - an introduction to the

  17. Sedimentary basins of the late Mesozoic extensional

    E-Print Network [OSTI]

    Johnson, Cari

    17 Sedimentary basins of the late Mesozoic extensional domain of China and Mongolia S.A. Graham,* T Mongolia was extended during the Late Jurassic and Early Cretaceous. As noted by various authors (Li et al in southern Mongolia (Lamb and Badarch, 1997), a crushed late Paleozoic flysch basin along the China­Mongolia

  18. Geological Sciences 330 Fall 2007 Sedimentary Geology

    E-Print Network [OSTI]

    . Principles of sedimentology and stratigraphy. 4th edition. Prentice Hall, Upper Saddle River, NJ. 662 pp: Principles of Stratigraphy and Sedimentology (1) Week 2 10 Sept Sedimentary Particles: Weathering (13, 15 & 16) 28 Nov Integrated Stratigraphy and Sedimentology Lab 10: Well-log Interpretation Week 14

  19. Enhanced ultraviolet electroluminescence and spectral narrowing from ZnO quantum dots/GaN heterojunction diodes by using high-k HfO{sub 2} electron blocking layer

    SciTech Connect (OSTI)

    Mo, Xiaoming; Long, Hao; Wang, Haoning; Chen, Zhao; Wan, Jiawei; Liu, Yuping; Fang, Guojia, E-mail: gjfang@whu.edu.cn [Key Lab of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan 430072 (China); Li, Songzhan [Key Lab of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan 430072 (China); School of Electronic and Electrical Engineering, Wuhan Textile University, Wuhan 430073 (China); Feng, Yamin [Department of Physics, Institute of Nanoscience and Nanotechnology, Central China Normal University, Wuhan 430079 (China); Ouyang, Yifang [College of Physical Science and Technology, Guangxi University, Nanning, Guangxi 530004 (China)

    2014-08-11T23:59:59.000Z

    We demonstrated the capability of realizing enhanced ZnO-related UV emissions by using the low-cost and solution-processable ZnO quantum dots (QDs) with the help of a high-k HfO{sub 2} electron blocking layer (EBL) for the ZnO QDs/p-GaN light-emitting diodes (LEDs). Full-width at half maximum of the LED devices was greatly decreased from ?110 to ?54?nm, and recombinations related to nonradiative centers were significantly suppressed with inserting HfO{sub 2} EBL. The electroluminescence of the ZnO QDs/HfO{sub 2}/p-GaN LEDs demonstrated an interesting spectral narrowing effect with increasing HfO{sub 2} thickness. The Gaussian fitting revealed that the great enhancement of the Zn{sub i}-related emission at ?414?nm whereas the deep suppression of the interfacial recombination at ?477?nm should be the main reason for the spectral narrowing effect.

  20. Petroleum potential of the Libyan sedimentary basins

    SciTech Connect (OSTI)

    Hammuda, O.S.; Sbeta, A.M.

    1988-08-01T23:59:59.000Z

    Contrary to prevailing opinion, all Libyan sedimentary basins and the Al-Jabal Al-Akhdar platform contain prolific petroleum accumulations with very high prospectivity. A systematic review of the types of traps and pays in this central part of the southern Mediterranean province reveals great variability in reservoir and source rock characteristics. The reservoir rocks are of almost all geologic ages. The thick source rock sequences also vary in nature and organic content. The organic-rich facies have accumulated in intracratonic and passive margin basins or in marginal seas. Most of the oil discovered thus far in these basins is found in large structural traps. Future discoveries of stratigraphic traps or small structural traps will require intensified efforts and detailed studies using up-to-date multidisciplinary techniques in sedimentary tectonics, biostratigraphic facies analysis, and geochemical prospecting in order to develop a better understanding of these basins, thus improving their prospectivity.

  1. Strategies for incorporating functional block copolymers into polyelectrolyte multilayer coatings

    E-Print Network [OSTI]

    Tan, Wui Siew

    2011-01-01T23:59:59.000Z

    This thesis explores the creation of thin film responsive hydrogel coatings via Layer-by Layer assembly (LbL) of temperature (T) responsive block copolymer - polyelectrolyte multilayers (PEMs). First, the LbL conditions ...

  2. SEDIMENTARY SEDIMENTARY

    E-Print Network [OSTI]

    Dornbos, Stephen Q.

    & Consulting, Inc.; Energy & Geoscience Institute; ExxonMobil; Unocal Corporation; Ventex Oil & Gas, Inc. We Investment Committee Meeting 11:30am-12:30 SEPM Investment Lunch 12:30-2:30pm SEPM Investment Meeting 3pm-5pm

  3. SEDIMENTARY SEDIMENTARY

    E-Print Network [OSTI]

    Culver, Stephen J.

    States. The advent of U-Pb geochronology, especially using the ion microprobe (SHRIMP) and laser-ablation

  4. SEDIMENTARY SEDIMENTARY

    E-Print Network [OSTI]

    Hagadorn, Whitey

    :aleontology:aleontology:aleontology:aleontology: Thomas W. Dignes Councilor for Sedimentology:Councilor for Sedimentology:Councilor for Sedimentology:Councilor for Sedimentology:Councilor for Sedimentology: Cathy J. Busby International Councilor:International Councilor Sarg Councilor for Sedimentology:Councilor for Sedimentology:Councilor for Sedimentology

  5. Sedimentary parameters of upper Barataria Bay, Louisiana

    E-Print Network [OSTI]

    Siegert, Rudolf B

    1961-01-01T23:59:59.000Z

    SEDIMENTARY PARAMETERS OF UPPER BARATARIA BAY, LOUISIANA A Thesis Rudolf Bernhardt Siegert Submitted to the Graduate School of the Agricultural snd Mechanical College of Texas in partial fulfillment of the reGulremente for the d. agree... of MASTER OF SCIENCE August 1961 Ma)or Sub)ect GeologP SEDYIKNTARY PARAI'ZTEHS OF DT'PBR BARATARIA BAY, LOUISIANA A Thesis By Rudolf Bernhardt Siegert Approved as to style and content by: Chairman of C 'tice Bea of Department or Student Advisor...

  6. The geomechanics of CO2 storage in deep sedimentary formations

    E-Print Network [OSTI]

    Rutqvist, J.

    2013-01-01T23:59:59.000Z

    The geomechanics of CO 2 storage in deep sedimentaryThis paper provides a review of the geomechanics andmodeling of geomechanics associated with geologic carbon

  7. archaea dominate sedimentary: Topics by E-print Network

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

    class in which we will investigate the issues surrounding hydraulic fracturing (fracking Nickrent, Daniel L. 43 JOURNAL OF SEDIMENTARY RESEARCH, VOL. 74, NO. 5, SEPTEMBER,...

  8. Diagenesis and reservoir characterization of the Block V-Lamar field, Maracaibo basin, Venezuela

    SciTech Connect (OSTI)

    Gonzales, C.; Gustavo, F. (INTEVEP, S.A., Caracas (Venezuela))

    1991-03-01T23:59:59.000Z

    The Block V-Lamar field, located in the central portion of Maracaibo basin, Venezuela, is the subject of this study. The sedimentary section corresponds to a section of the Misoa Formation of early to middle Eocene age. These sediments were deposited in the upper delta plain as stacked distributary channel bars and associated facies and consist of relatively clean sandstones, fine to medium grained, with a sublitharenitic to subarkosic composition. The clay mineral assemblage is mainly composed of kaolinite, followed by chlorite and subordinate amounts of discrete smectite, discrete illite, and mixed-layer illite/smectite with order stratification with 20-30% of expandable layers, all of diagenetic origin. Even though there is a remnant of primary porosity reduced by silica cement, most porosity is secondary as a result of cement, matrix, and unstable grain dissolution. The petrographic XRD and SEM data obtained allow the authors to define the following paragenetic sequences: (1) mechanical compaction; (2) silica cementation; (3) patchy calcite cementation; (4) dissolution of matrix, cements, feldspars, and rock fragments; (5) kaolinite precipitation at or near feldspar intragranular pores; (6) matrix recrystallization to chlorite; (7) precipitation of second generation of kaolinite; and (8) precipitation of smectite. The porosity and permeability distribution in the reservoirs is the result of the net effect of the different diagenetic events that include early diagenesis, medium to late diagenesis, and telodiagenesis, mainly in response to basinwide tectonism.

  9. Building, block, street : residential block design

    E-Print Network [OSTI]

    Kamell, Elizabeth N. (Elizabeth Natanya)

    1996-01-01T23:59:59.000Z

    Late twentieth-century housing, formed by economic and internally generated functional problems rather than by limitations imposed by traditional street pattern and block size, is fundamentally anti-urban. Modern American ...

  10. Experimental deformation of multilithologic specimens simulating sedimentary facies changes 

    E-Print Network [OSTI]

    Dyke, Lawrence Dana

    1976-01-01T23:59:59.000Z

    EXPERIMENTAL DEFORMATION OF MULTILITHOLOGIC SPECIMENS SIMULATING SEDIMENTARY FACIES CHANGES A Thesis by LAWRENCE DANA DYKE Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree... of MASTER OF SCIENCE December 1976 Major Subject: Geology EXPERIMENTAL DEFORMATION OF MULTILITHOLOGIC SPECIMENS SIMULATING SEDIMENTARY FACIES CHANGES A Thesis by LAWRENCE DANA DYKE Approved as to style and content by: (Chai n Committee) (Head...

  11. Experimental deformation of multilithologic specimens simulating sedimentary facies changes

    E-Print Network [OSTI]

    Dyke, Lawrence Dana

    1976-01-01T23:59:59.000Z

    EXPERIMENTAL DEFORMATION OF MULTILITHOLOGIC SPECIMENS SIMULATING SEDIMENTARY FACIES CHANGES A Thesis by LAWRENCE DANA DYKE Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree... of MASTER OF SCIENCE December 1976 Major Subject: Geology EXPERIMENTAL DEFORMATION OF MULTILITHOLOGIC SPECIMENS SIMULATING SEDIMENTARY FACIES CHANGES A Thesis by LAWRENCE DANA DYKE Approved as to style and content by: (Chai n Committee) (Head...

  12. Journal of Sedimentary Research, 2005, v. 75, 907920 DOI: 10.2110/jsr.2005.070

    E-Print Network [OSTI]

    Polly, David

    to chamosite and goethite ooids in sedimentary ironstones. Diagenetic replacement of precursor goethite

  13. antibody blocks interactions: Topics by E-print Network

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

    Er Kk Kayatani; Zilka I Terrientes; Socrates Herrera; Rose Gf Leke; Diane W Taylor 143 Seismic motion in urban sites consisting of blocks in welded contact with a soft layer...

  14. NATURAL GAS RESOURCES IN DEEP SEDIMENTARY BASINS

    SciTech Connect (OSTI)

    Thaddeus S. Dyman; Troy Cook; Robert A. Crovelli; Allison A. Henry; Timothy C. Hester; Ronald C. Johnson; Michael D. Lewan; Vito F. Nuccio; James W. Schmoker; Dennis B. Riggin; Christopher J. Schenk

    2002-02-05T23:59:59.000Z

    From a geological perspective, deep natural gas resources are generally defined as resources occurring in reservoirs at or below 15,000 feet, whereas ultra-deep gas occurs below 25,000 feet. From an operational point of view, ''deep'' is often thought of in a relative sense based on the geologic and engineering knowledge of gas (and oil) resources in a particular area. Deep gas can be found in either conventionally-trapped or unconventional basin-center accumulations that are essentially large single fields having spatial dimensions often exceeding those of conventional fields. Exploration for deep conventional and unconventional basin-center natural gas resources deserves special attention because these resources are widespread and occur in diverse geologic environments. In 1995, the U.S. Geological Survey estimated that 939 TCF of technically recoverable natural gas remained to be discovered or was part of reserve appreciation from known fields in the onshore areas and State waters of the United. Of this USGS resource, nearly 114 trillion cubic feet (Tcf) of technically-recoverable gas remains to be discovered from deep sedimentary basins. Worldwide estimates of deep gas are also high. The U.S. Geological Survey World Petroleum Assessment 2000 Project recently estimated a world mean undiscovered conventional gas resource outside the U.S. of 844 Tcf below 4.5 km (about 15,000 feet). Less is known about the origins of deep gas than about the origins of gas at shallower depths because fewer wells have been drilled into the deeper portions of many basins. Some of the many factors contributing to the origin of deep gas include the thermal stability of methane, the role of water and non-hydrocarbon gases in natural gas generation, porosity loss with increasing thermal maturity, the kinetics of deep gas generation, thermal cracking of oil to gas, and source rock potential based on thermal maturity and kerogen type. Recent experimental simulations using laboratory pyrolysis methods have provided much information on the origins of deep gas. Technologic problems are one of the greatest challenges to deep drilling. Problems associated with overcoming hostile drilling environments (e.g. high temperatures and pressures, and acid gases such as CO{sub 2} and H{sub 2}S) for successful well completion, present the greatest obstacles to drilling, evaluating, and developing deep gas fields. Even though the overall success ratio for deep wells is about 50 percent, a lack of geological and geophysical information such as reservoir quality, trap development, and gas composition continues to be a major barrier to deep gas exploration. Results of recent finding-cost studies by depth interval for the onshore U.S. indicate that, on average, deep wells cost nearly 10 times more to drill than shallow wells, but well costs and gas recoveries vary widely among different gas plays in different basins. Based on an analysis of natural gas assessments, many topical areas hold significant promise for future exploration and development. One such area involves re-evaluating and assessing hypothetical unconventional basin-center gas plays. Poorly-understood basin-center gas plays could contain significant deep undiscovered technically-recoverable gas resources.

  15. Parametric Analysis of the Factors Controlling the Costs of Sedimentary Geothermal Systems - Preliminary Results (Poster)

    SciTech Connect (OSTI)

    Augustine, C.

    2013-10-01T23:59:59.000Z

    Parametric analysis of the factors controlling the costs of sedimentary geothermal systems was carried out using a modified version of the Geothermal Electricity Technology Evaluation Model (GETEM). The sedimentary system modeled assumed production from and injection into a single sedimentary formation.

  16. High Temperature, Low Relative Humidity, Polymer-type Membranes Based on Disulfonated Poly(arylene ether) Block and Random Copolymers Optionally Incorporating Protonic Conducting Layered Water insoluble Zirconium Fillers

    SciTech Connect (OSTI)

    McGrath, James E.; Baird, Donald G.

    2010-06-03T23:59:59.000Z

    Our research group has been engaged in the past few years in the synthesis of biphenol based partially disulfonated poly(arylene ether sulfone) random copolymers as potential PEMs. This series of polymers are named as BPSH-xx, where BP stands for biphenol, S stands for sulfonated, H stands for acidified and xx represents the degree of disulfonation. All of these sulfonated copolymers phase separate to form nano scale hydrophilic and hydrophobic morphological domains. The hydrophilic phase containing the sulfonic acid moieties causes the copolymer to absorb water. Water confined in hydrophilic pores in concert with the sulfonic acid groups serve the critical function of proton (ion) conduction and water transport in these systems. Both Nafion and BPSH show high proton conductivity at fully hydrated conditions. However proton transport is especially limited at low hydration level for the BPSH random copolymer. It has been observed that the diffusion coefficients of both water and protons change with the water content of the pore. This change in proton and water transport mechanisms with hydration level has been attributed to the solvation of the acid groups and the amount of bound and bulk-like water within a pore. At low hydration levels most of the water is tightly associated with sulfonic groups and has a low diffusion coefficient. This tends to encourage isolated domain morphology. Thus, although there may be significant concentrations of protons, the transport is limited by the discontinuous morphological structure. Hence the challenge lies in how to modify the chemistry of the polymers to obtain significant protonic conductivity at low hydration levels. This may be possible if one can alter the chemical structure to synthesize nanophase separated ion containing block copolymers. Unlike the BPSH copolymers, where the sulfonic acid groups are randomly distributed along the chain, the multiblock copolymers will feature an ordered sequence of hydrophilic and hydrophobic segments. If, like in Nafion, connectivity is established between the hydrophilic domains in these multiblock copolymers, they will not need as much water, and hence will show much better protonic conductivity than the random copolymers (with similar degree of sulfonation, or IEC) at partially hydrated conditions. The goal of this research is to develop a material suitable for use as a polymer electrolyte membrane which by the year 2010 will meet all the performance requirements associated with fuel cell operation at high temperatures and low relative humidity, and will out-perform the present standard Nafion{reg_sign}. In particular, it is our objective to extend our previous research based on the use of thermally, oxidatively, and hydrolytically, ductile, high Tg ion containing polymers based on poly(arylene ethers) to the production of polymer electrolyte membranes which will meet all the performance requirements in addition to having an areal resistance of < 0.05 ohm-cm{sup 2} at a temperature of up to 120 C, relative humidity of 25 to 50%, and up to 2.5 atm total pressure. In many instances, our materials already out performs Nafion{reg_sign}, and it is expected that with some modification by either combining with conductive inorganic fillers and/or synthesizing as a block copolymer it will meet the performance criteria at high temperatures and low relative humidity. A key component in improving the performance of the membranes (and in particular proton conductivity) and meeting the cost requirements of $40/m{sup 2} is our development of a film casting process, which shows promise for generation of void free thin films of uniform thickness with controlled polymer alignment and configuration.

  17. On block identities and block inclusions Jrn B. Olsson

    E-Print Network [OSTI]

    Olsson, Jørn Børling

    On block identities and block inclusions Jørn B. Olsson (joint work with D. Stanton, C. Bessenrodt for a prime p and a p-block Bp of G the set Irr(Bp) of irreducible complex characters of Bp. It was conjectured by Navarro and Willems [4], that if for different primes p, q we have a block equality Irr

  18. DOE workshop: Sedimentary systems, aqueous and organic geochemistry

    SciTech Connect (OSTI)

    Not Available

    1993-07-01T23:59:59.000Z

    A DOE workshop on sedimentary systems, aqueous and organic geochemistry was held July 15-16, 1993 at Lawrence Berkeley Laboratory. Papers were organized into several sections: Fundamental Properties, containing papers on the thermodynamics of brines, minerals and aqueous electrolyte solutions; Geochemical Transport, covering 3-D imaging of drill core samples, hydrothermal geochemistry, chemical interactions in hydrocarbon reservoirs, fluid flow model application, among others; Rock-Water Interactions, with presentations on stable isotope systematics of fluid/rock interaction, fluid flow and petotectonic evolution, grain boundary transport, sulfur incorporation, tracers in geologic reservoirs, geothermal controls on oil-reservoir evolution, and mineral hydrolysis kinetics; Organic Geochemistry covered new methods for constraining time of hydrocarbon migration, kinetic models of petroleum formation, mudstones in burial diagenesis, compound-specific carbon isotope analysis of petroleums, stability of natural gas, sulfur in sedimentary organic matter, organic geochemistry of deep ocean sediments, direct speciation of metal by optical spectroscopies; and lastly, Sedimentary Systems, covering sequence stratigraphy, seismic reflectors and diagenetic changes in carbonates, geochemistry and origin of regional dolomites, and evidence of large comet or asteroid impacts at extinction boundaries.

  19. Net Requirements Transparency Process for Slice/Block and Block...

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

    3 As part of its Net Requirements Transparency process, on July 31, 2013 BPA published the SliceBlock and Block customers' FY2012 and forecast FY2014 Total Retail Load (TRL) and...

  20. Sedimentology and diagenesis of misoa C-2 reservoir, VLE-305/326 area, block V, Lamar Field, Maracaibe Lake, Venezuela

    SciTech Connect (OSTI)

    Cabrera de Casas, L.; Chacartegui, F. (Maraven S.A., Caracas (Venezuela))

    1993-02-01T23:59:59.000Z

    The main purpose of this study was to characterize the Upper Eocene C-2 reservoir using sedimentological, petrophysical and biostratigraphic parameters. The reservoir quality was evaluated by defining its physical attributes, geometry, areal distribution and orientation, from facies analysis of sedimentary units identified in core samples. In evaluating the sedimentary features of the Misoa C-2 reservoir in VLE 305/326 area, Block V, Lamar Field, Maracaibo Lake, 2,000' of cores from five wells (named VLe-339, VLE-720, VLE -723, VLe-754, LPG-1211) were analyzed. The sedimentary sequence studied represents upper-middle deltaic plain deposits with no marine influence. These deposits were identified as interdistributary channels, crevasse splays and interdistributary bays deposited in a northward prograding system. Seven sedimentary facies were defined from the physical, chemical and biological features observed in all cores. These facies were petrophysically and petrographically characterized then grouped in six sedimentary units which were then correlated over the entire area. One hundred well logs were correlated using sedimentological criteria. Finally, four flow units were identified in the reservoir using the sedimentological parameters, petrophysical data and production behavior. A surface trend analysis program utilizing thickness values resulted in contours, trends, residuals and isometry maps of each unit with a generalized southwest-northeast trend orientation. It was determined that facies distribution in the units controls the reservoir quality. These results are the main input into reservoir simulation. An accurate reservoir modeling is needed to prepare for optimizing secondary oil recovery.

  1. Pressure analysis of the hydromechanical fracture behaviour in stimulated tight sedimentary geothermal reservoirs

    E-Print Network [OSTI]

    Wessling, S.

    2009-01-01T23:59:59.000Z

    The future of Geothermal Energy. Massachusetts Institute ofthe exploitation of geothermal energy from such rocks. Wemethod to extract geothermal energy from tight sedimentary

  2. argillo-carbonated sedimentary series: Topics by E-print Network

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

    caused by the 1997. GALLARDOc,d a Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl continental shelf, were sampled. The sedimentary organic matter...

  3. Lyme Carditis with Transient Complete Heart Block

    E-Print Network [OSTI]

    Dolbec, Katherine W D; Higgins, George L; Saucier, John R

    2010-01-01T23:59:59.000Z

    demonstrating complete heart block Volume XI, no . 2 : Maywith Transient Complete Heart Block Katherine W. D. Dolbecsecond-degree to first-degree heart block before complete

  4. Block coordination copolymers

    DOE Patents [OSTI]

    Koh, Kyoung Moo; Wong-Foy, Antek G; Matzger, Adam J; Benin, Annabelle I; Willis, Richard R

    2014-11-11T23:59:59.000Z

    The present invention provides compositions of crystalline coordination copolymers wherein multiple organic molecules are assembled to produce porous framework materials with layered or core-shell structures. These materials are synthesized by sequential growth techniques such as the seed growth technique. In addition, the invention provides a simple procedure for controlling functionality.

  5. Block coordination copolymers

    DOE Patents [OSTI]

    Koh, Kyoung Moo; Wong-Foy, Antek G.; Matzger, Adam J.; Benin, Annabelle I.; Willis, Richard R.

    2012-12-04T23:59:59.000Z

    The present invention provides compositions of crystalline coordination copolymers wherein multiple organic molecules are assembled to produce porous framework materials with layered or core-shell structures. These materials are synthesized by sequential growth techniques such as the seed growth technique. In addition, the invention provides a simple procedure for controlling functionality.

  6. Block coordination copolymers

    DOE Patents [OSTI]

    Koh, Kyoung Moo; Wong-Foy, Antek G; Matzger, Adam J; Benin, Annabelle I; Willis, Richard R

    2012-11-13T23:59:59.000Z

    The present invention provides compositions of crystalline coordination copolymers wherein multiple organic molecules are assembled to produce porous framework materials with layered or core-shell structures. These materials are synthesized by sequential growth techniques such as the seed growth technique. In addition, the invention provides a simple procedure for controlling functionality.

  7. Sedimentological characterization of the C2' sequence, Block Lamar field, Maracaibo basin, Venezuela

    SciTech Connect (OSTI)

    Gustavo, F.B.; Gonzales, C. (INTEVEP, S.A., Caracas (Venezuela))

    1991-03-01T23:59:59.000Z

    Through the study of 2,109 ft of core from the Block V-Lamar field, central Maracaibo basin, Venezuela, the environments of deposition were established. The studied interval corresponds to the informal C2 sands of the Misoa Formation (Eocene). Seven different lithofacies were identified and later grouped into three sedimentary units deposited in a general, fluvial-dominated deltaic environment. The organization of the different lithofacies along with palynological data permitted the assignment of lower delta plain, upper delta plain, and, again, lower delta plain for the sedimentary units. The main subenvironments encountered include amalgamated distributary channel bars and related interdistributary bays. The distributary channels are thicker in the upper delta plain unit owing to a higher degree of stacking. Furthermore, sandstone thickness decreases in a southwest-northwest sense which indicates the direction of regression. This can be documented also with petrophysical characteristics of the reservoir reflected as a continuous decrease in porosity from 25 to 18%.

  8. Hole Blocking, Electron Transporting and Window Layer for Optimized

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh School football High SchoolBundlesHistory NewHoldren

  9. Solvothermal Thin Film Deposition of Electron Blocking Layers | ANSER

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del Sol HomeFacebookScholarship Fund3Biology|Solar wind samples SolarSolving

  10. JOURNAL OF SEDIMENTARY RESEARCH, VOL. 74, NO. 5, SEPTEMBER, 2004, P. 730735 Copyright 2004, SEPM (Society for Sedimentary Geology) 1527-1404/04/074-730/$03.00

    E-Print Network [OSTI]

    Haszeldine, Stuart

    (Society for Sedimentary Geology) 1527-1404/04/074-730/$03.00 RESEARCH METHODS PAPERS QUANTIFICATION, Edinburgh, EH14 4AS, U.K. 2 Department of Geology and Geophysics, University of Edinburgh, Grant Institute

  11. New adhesive systems based on functionalized block copolymers

    SciTech Connect (OSTI)

    Kent, M.; Saunders, R.; Hurst, M.; Small, J.; Emerson, J.; Zamora, D.

    1997-05-01T23:59:59.000Z

    The goal of this work was to evaluate chemically-functionalized block copolymers as adhesion promoters for metal/thermoset resin interfaces. Novel block copolymers were synthesized which contain pendant functional groups reactive toward copper and epoxy resins. In particular, imidazole and triazole functionalities that chelate with copper were incorporated onto one block, while secondary amines were incorporated onto the second block. These copolymers were found to self-assemble from solution onto copper surfaces to form monolayers. The structure of the adsorbed monolayers were studied in detail by neutron reflection and time-of-flight secondary ion mass spectrometry. The monolayer structure was found to vary markedly with the solution conditions and adsorption protocol. Appropriate conditions were found for which the two blocks form separate layers on the surface with the amine functionalized block exposed at the air surface. Adhesion testing of block copolymer-coated copper with epoxy resins was performed in both lap shear and peel modes. Modest enhancements in bond strengths were observed with the block copolymer applied to the native oxide. However, it was discovered that the native oxide is the weak link, and that by simply removing the native oxide, and then applying an epoxy resin before the native oxide can reform, excellent bond strength in the as-prepared state as well as excellent retention of bond strength after exposure to solder in ambient conditions are obtained. It is recommended that long term aging studies be performed with and without the block copolymer. In addition, the functionalized block copolymer method should be evaluated for another system that has inherently poor bonding, such as the nickel/silicone interface, and for systems involving metals and alloys which form oxides very rapidly, such as aluminum and stainless steel, where bonding strategies involve stabilizing the native oxide.

  12. Salt Control on Sedimentary Processes in Early Pleistocene: Ship Shoal South Addition Blocks 349-358, Gulf of Mexico.

    E-Print Network [OSTI]

    Syarif, Munji

    2004-09-30T23:59:59.000Z

    recent salt and associated sediments reveals the evolution of a supralobal basin in the study area. The basin depocenter shifted from the northeastern part to the center of the study area through time. A small, bulb-shaped, salt-stock structure occurs...

  13. Late Quaternary variability of sedimentary nitrogen isotopes in the eastern South Pacific Ocean

    E-Print Network [OSTI]

    Demouchy, Sylvie

    Late Quaternary variability of sedimentary nitrogen isotopes in the eastern South Pacific Ocean), Late Quaternary variability of sedimentary nitrogen isotopes in the eastern South Pacific Ocean) in the water columns of the Arabian Sea (AS) and the eastern North and South Pacific oceans (ENP; ESP) holds

  14. SEDIMENTARY ARCHITECTURE AND CONTROLING MECHANISMS, LLOBREGAT DELTA, HOLOCENE-PLEISTOCENE (SPAIN)

    E-Print Network [OSTI]

    Politècnica de Catalunya, Universitat

    SEDIMENTARY ARCHITECTURE AND CONTROLING MECHANISMS, LLOBREGAT DELTA, HOLOCENE-PLEISTOCENE (SPAIN baixa. E-08034 Barcelona, Spain. E-mail: (desire.gamez@upc.edu) 2 ICREA, Geomodels- Dep. of Geotechnical Madrid, Spain The reconstruction of the sedimentary architecture of the Llobregat delta is based

  15. Mobile Pb-isotopes in Proterozoic sedimentary basins as guides for exploration of uranium deposits

    E-Print Network [OSTI]

    Hiatt, Eric E.

    Mobile Pb-isotopes in Proterozoic sedimentary basins as guides for exploration of uranium deposits potential as a guide for exploration of uranium and other types of deposits in basins of any age. Isotope of sedimentary basins hosting unconformity-type uranium deposits. In addition, these techniques have great

  16. Recent glacially influenced sedimentary processes on the East Greenland continental slope and deep Greenland Basin

    E-Print Network [OSTI]

    Jakobsson, Martin

    Recent glacially influenced sedimentary processes on the East Greenland continental slope and deep Greenland Basin Marga García a,*, Julian A. Dowdeswell a , Gemma Ercilla b , Martin Jakobsson c a Scott June 2012 Available online xxx Keywords: Greenland Basin Glacially influenced sedimentary processes

  17. Building Random Trees from Blocks

    E-Print Network [OSTI]

    2012-09-18T23:59:59.000Z

    Sep 18, 2012 ... We have a finite collection of unlabeled, rooted, nonplanar building ... We use these as building blocks of an unlabeled, rooted, nonplanar tree.

  18. The geomechanics of CO{sub 2} storage in deep sedimentary formations

    SciTech Connect (OSTI)

    Rutqvist, J.

    2011-11-01T23:59:59.000Z

    This paper provides a review of the geomechanics and modeling of geomechanics associated with geologic carbon storage (GCS), focusing on storage in deep sedimentary formations, in particular saline aquifers. The paper first introduces the concept of storage in deep sedimentary formations, the geomechanical processes and issues related with such an operation, and the relevant geomechanical modeling tools. This is followed by a more detailed review of geomechanical aspects, including reservoir stress-strain and microseismicity, well integrity, caprock sealing performance, and the potential for fault reactivation and notable (felt) seismic events. Geomechanical observations at current GCS field deployments, mainly at the In Salah CO2 storage project in Algeria, are also integrated into the review. The In Salah project, with its injection into a relatively thin, low-permeability sandstone is an excellent analogue to the saline aquifers that might be used for large scale GCS in parts of Northwest Europe, the U.S. Midwest, and China. Some of the lessons learned at In Salah related to geomechanics are discussed, including how monitoring of geomechanical responses is used for detecting subsurface geomechanical changes and tracking fluid movements, and how such monitoring and geomechanical analyses have led to preventative changes in the injection parameters. Recently, the importance of geomechanics has become more widely recognized among GCS stakeholders, especially with respect to the potential for triggering notable (felt) seismic events and how such events could impact the long-term integrity of a CO{sub 2} repository (as well as how it could impact the public perception of GCS). As described in the paper, to date, no notable seismic event has been reported from any of the current CO{sub 2} storage projects, although some unfelt microseismic activities have been detected by geophones. However, potential future commercial GCS operations from large power plants will require injection at a much larger scale. For such largescale injections, a staged, learn-as-you-go approach is recommended, involving a gradual increase of injection rates combined with continuous monitoring of geomechanical changes, as well as siting beneath a multiple layered overburden for multiple flow barrier protection, should an unexpected deep fault reactivation occur.

  19. California Energy Commission BLOCK GRANT

    E-Print Network [OSTI]

    requires the Energy Commission to prioritize grants based on cost-effective energy efficiencyCalifornia Energy Commission REVISED BLOCK GRANT GUIDELINES (FORMULA-BASED GRANTS) ENERGY EFFICIENCY CONSERVATION BLOCK GRANT PROGRAM FOR CONSIDERATION FOR ADOPTION BY THE CALIF. ENERGY COMMISSION

  20. California Energy Commission BLOCK GRANT

    E-Print Network [OSTI]

    Bill X4 114 . This state law requires the Energy Commission to prioritize grants based on costCalifornia Energy Commission BLOCK GRANT GUIDELINES (FORMULA-BASED GRANTS) ENERGY EFFICIENCY CONSERVATION BLOCK GRANT PROGRAM ADOPTED BY THE CALIFORNIA ENERGY COMMISSION OCTOBER 7, 2009 CEC-150

  1. California Energy Commission BLOCK GRANT

    E-Print Network [OSTI]

    by Assembly Bill X4 114 . This state law requires the Energy Commission to prioritize grants based on costCalifornia Energy Commission Committee Draft BLOCK GRANT GUIDELINES (FORMULA-BASED GRANTS) ENERGY GLOSSARY #12;Energy Efficiency and Conservation Block Grant (EECBG) Program Guidelines 1. Background

  2. Conformal nets II: conformal blocks

    E-Print Network [OSTI]

    Arthur Bartels; Christopher L. Douglas; André Henriques

    2014-09-30T23:59:59.000Z

    Conformal nets provide a mathematical formalism for conformal field theory. Associated to a conformal net with finite index, we give a construction of the `bundle of conformal blocks', a representation of the mapping class groupoid of closed topological surfaces into the category of finite-dimensional projective Hilbert spaces. We also construct infinite-dimensional spaces of conformal blocks for topological surfaces with smooth boundary. We prove that the conformal blocks satisfy a factorization formula for gluing surfaces along circles, and an analogous formula for gluing surfaces along intervals. We use this interval factorization property to give a new proof of the modularity of the category of representations of a conformal net.

  3. Flemish fieldstone: unravelling lithological differences and diagenesis Research Unit: Sedimentary Geology and Engineering Geology

    E-Print Network [OSTI]

    Gent, Universiteit

    Flemish fieldstone: unravelling lithological differences and diagenesis Research Unit: Sedimentary Geology and Engineering Geology Topic: Fieldstone, natural stone, diagenesis, microscopy with a great interest in sedimentation processes and diagenesis, in petrology and Flemish stratigraphy

  4. Mesoporous Block Copolymer Battery Separators

    E-Print Network [OSTI]

    Wong, David Tunmin

    2012-01-01T23:59:59.000Z

    of the characterization methods directly relevant to batteryand characterization of mesoporous block copolymers and our experiments testing these materials as batterybattery cycling methods are also described here in this chapter. Synthesis, characterization

  5. Community Development Block Grant (Kansas)

    Broader source: Energy.gov [DOE]

    The Community Development Block Grant provides funds aimed at creating or retaining permanent jobs, which must be filled by a majority of low- and moderate-income persons. Eligible small city and...

  6. Journal of Sedimentary Research, 2010, v. 80, 943954 Research Article

    E-Print Network [OSTI]

    González, Luis A.

    boreholes advanced to depths of 400­450 cm (top of limestone bedrock) from the Chattanooga Coke Plant (CCP of anthropogenically remolded clay soil fill containing coal clinker, cinder grains, and limestone gravel; most layers of coarse fill were impregnated with creosote and coal tar. Most undisturbed soil (below 1 m depth

  7. Morphologies of block copolymers composed of charged and neutral blocks

    SciTech Connect (OSTI)

    Kumar, Rajeev [ORNL; Goswami, Monojoy [ORNL; Mays, Jimmy [ORNL; Sumpter, Bobby G [ORNL; Wang, Xiaojun [ORNL

    2012-01-01T23:59:59.000Z

    This article reviews current experimental observations and theoretical calculations devoted towards understanding micro-phase separation in charged block copolymer systems. We discuss bulk morphologies in melt and in solution, as well as some of the new emerging research directions. Overall, a comprehensive picture is beginning to emerge on the fundamental role of electrostatics in the microphase separation of charged block copolymers. This understanding provides exciting new insight that may be used to direct targeted structures that endow the materials with desired properties that can have tremendous potential in technological applications.

  8. Ultrathin amorphous zinc-tin-oxide buffer layer for enhancing heterojunction interface quality in metal-oxide solar cells

    E-Print Network [OSTI]

    Heo, Jaeyeong

    We demonstrate a tunable electron-blocking layer to enhance the performance of an Earth-abundant metal-oxide solar-cell material. A 5 nm thick amorphous ternary metal-oxide buffer layer reduces interface recombination, ...

  9. Method of producing nanopatterned articles using surface-reconstructed block copolymer films

    DOE Patents [OSTI]

    Russell, Thomas P; Park, Soojin; Wang, Jia-Yu; Kim, Bokyung

    2013-08-27T23:59:59.000Z

    Nanopatterned surfaces are prepared by a method that includes forming a block copolymer film on a substrate, annealing and surface reconstructing the block copolymer film to create an array of cylindrical voids, depositing a metal on the surface-reconstructed block copolymer film, and heating the metal-coated block copolymer film to redistribute at least some of the metal into the cylindrical voids. When very thin metal layers and low heating temperatures are used, metal nanodots can be formed. When thicker metal layers and higher heating temperatures are used, the resulting metal structure includes nanoring-shaped voids. The nanopatterned surfaces can be transferred to the underlying substrates via etching, or used to prepare nanodot- or nanoring-decorated substrate surfaces.

  10. Rotationally invariant multilevel block codes

    E-Print Network [OSTI]

    Kulandaivelu, Anita

    1993-01-01T23:59:59.000Z

    The objective of this thesis is to evaluate the performance of block codes that are designed to be rotationally invariant, in a multilevel coding scheme, over a channel modelled to be white gaussian noise. Also, the use of non-binary codes...

  11. Organic solvent alteration of hydraulic properties of sedimentary rocks of low permeability: a review

    SciTech Connect (OSTI)

    Sklarew, D.S.

    1985-05-01T23:59:59.000Z

    A review of the current literature on hydrophysical interactions of organic solutes with sedimentary rocks of low permeability is presented. The motivation was the premise that low permeability rocks may act as secondary (aquifer) barriers for the containment of hazardous organic wastes, thus preventing these wastes from contaminating the groundwater. However, this premise may be incorrect if organic wastes can affect the hydraulic conductivity of these rocks. The results indicate that very little work has been done concerning interactions of organics with consolidated subsurface materials. Available information on three related topics was summarized: the effect of organic compounds on the hydrophysical properties of clays, case studies concerning the interactions of organic compounds with clays and sedimentary rocks, and the effect of shales on inorganic transport. These studies give an indication of some research areas that need to be explored with regard to the effect of organic compounds on the hydrophysical properties of sedimentary rocks; these research needs are briefly summarized. 42 refs.

  12. Surficial sediments and sedimentary structures: Middle Ground, Padre Island, Texas.

    E-Print Network [OSTI]

    Zupan, Alan-Jon Wellward

    1971-01-01T23:59:59.000Z

    '=- of time, al" water is driven from The Hole into Murdock Basin. Hnder this =ituation, a continuous subaerial mudflat stretches from tn. Central Mud Flats to the Middle Ground. !Iurdock Basin, aver- a; ing i m o- water desth) is se'pa' ted by a shoal... by coatings of mucilage provided by the algae (Neumann et al. , 19(0). After s, th-n sediment layer has been deposited on top of the algal mat, the algae due to mo+il'ty and positive phototrophism an move upward through the sediment to esta'olish a new...

  13. Microsedimentological characterization using image analysis and m-XRF as indicators of sedimentary processes and climate changes

    E-Print Network [OSTI]

    Beaudoin, Georges

    Microsedimentological characterization using image analysis and m-XRF as indicators of sedimentary online 17 July 2012 Keywords: Sedimentary processes XRF Image analysis Granulometry Micropumices-Ray Fluorescence (XRF) and Scanning electron microscope analyses. Peaks of Ca/Si and Mn, and occurrences

  14. Seasonal melting and the formation of sedimentary rocks on Mars, with predictions for the Gale Crater mound

    E-Print Network [OSTI]

    Kite, Edwin

    Street, Suite 205, Boulder, CO 80301, USA e Department of Earth and Planetary Science, University distribution of sedimentary rocks. The global distribution of snowmelt has maxima in Valles Marineris. The pattern of sedimentary rocks on Mars is most consistent with a model Mars paleoclimate that only rarely

  15. Method for making block siloxane copolymers

    DOE Patents [OSTI]

    Butler, N.L.; Jessop, E.S.; Kolb, J.R.

    1981-02-25T23:59:59.000Z

    A method for synthesizing block polysiloxane copolymers is disclosed. Diorganoscyclosiloxanes and an end-blocking compound are interacted in the presence of a ring opening polymerization catalyst, producing a blocked prepolymer. The prepolymer is then interacted with a silanediol, resulting in condensation polymerization of the prepolymers. A second end-blocking compound is subsequently introduced to end-cap the polymers and copolymers formed from the condensation polymerization.

  16. Constructing matrices with optimal block coherence

    E-Print Network [OSTI]

    Thompson, Andrew

    Constructing matrices with optimal block coherence Andrew Thompson (Duke University) Joint work · Background: · The subspace packing problem · An equivalent notion: block coherence · Who is interested in this? #12;Outline · Background: · The subspace packing problem · An equivalent notion: block coherence

  17. Coal is a combustible sedimentary rock and a valuable economic resource. During the Pennsylvanian Period

    E-Print Network [OSTI]

    Polly, David

    Coal is a combustible sedimentary rock and a valuable economic resource. During the Pennsylvanian of years produced the bituminous coals currently found in southwestern Indiana. Bituminous coals in Indiana currently ranks as the seventh-largest coal-producing state in the nation and has an estimated 17.57 billion

  18. of brine heterogeneity in modern sedimentary basins (6) imply inefficiency of mixing and the

    E-Print Network [OSTI]

    Boyce, C. Kevin

    of brine heterogeneity in modern sedimentary basins (6) imply inefficiency of mixing and the potential for preservation of individual, metal- charged brine reservoirs that could be tapped at some later. The observation that the texturally later brines have higher metal contents is consistent with this model

  19. Copyright 2007, SEPM (Society for Sedimentary Geology) A History of Atmospheric CO2

    E-Print Network [OSTI]

    Springer, Clint J.

    Copyright © 2007, SEPM (Society for Sedimentary Geology) A History of Atmospheric CO2 and Its.00, ISBN 978-0-387- 22069-7. Atmospheric carbon dioxide ([CO2 ]) concentrations have varied considerably through time. Some estimates suggest extraordinarily high concentrations of atmospheric CO2 (~ 4000

  20. Quaternary International 90 (2002) 87115 Sedimentary and stratigraphic evidence for subglacial flooding,

    E-Print Network [OSTI]

    Fisher, Timothy G.

    carbonates to clastics and finally to crystallines from the lower till through the gravel facies. Sedimentary descriptions from 14 gravel pits indicate a consistent stratigraphy across a width of 15 km and that the entire till­gravel­till sequence resulted from the same glacial advance. r 2002 Elsevier Science Ltd

  1. ELSEVIER Sedimentary Geology 124 (1999) 131147 UPb ages and geochemistry of granite pebbles from the Devonian

    E-Print Network [OSTI]

    Dörr, Wolfgang

    ELSEVIER Sedimentary Geology 124 (1999) 131­147 U­Pb ages and geochemistry of granite pebbles from 1998 Abstract The geochemical composition of some garnet-bearing biotite granite pebbles within from two samples. The granites have suffered low-grade metamorphism as shown by the development

  2. ORIGINAL PAPER Sedimentary pellets as an ice-cover proxy in a High Arctic

    E-Print Network [OSTI]

    Vincent, Warwick F.

    ORIGINAL PAPER Sedimentary pellets as an ice-cover proxy in a High Arctic ice-covered lake Jessica-cover extent and dynamics on this perennially ice-covered, High Arctic lake. These pellets are interpreted growth. The pellets remain frozen in the ice until a summer or series of summers with reduced ice cover

  3. Soft-ratchet modeling of slow dynamics in the nonlinear resonant response of sedimentary

    E-Print Network [OSTI]

    Soft-ratchet modeling of slow dynamics in the nonlinear resonant response of sedimentary rocks of Physics 0-7354-0330-9/06/$23.00 CREDIT LINE (BELOW) TO BE INSERTED ONLY ON THE FIRST PAGE OF THE #12;SOFT-RATCHET

  4. Oxygen as a control on seafloor biological communities and their roles in sedimentary carbon cycling

    E-Print Network [OSTI]

    Oxygen as a control on seafloor biological communities and their roles in sedimentary carbon experiments were conducted at sites spanning the steep oxygen, organic matter, and biological community gradients across the Arabian Sea oxygen minimum zone, in order to quantify the role that fauna play

  5. A model of suboxic sedimentary diagenesis suitable for automatic tuning and gridded global domains

    E-Print Network [OSTI]

    Scherer, Norbert F.

    tuned to minimize the misfit to observations from 53 sedimentary locations throughout the ocean at predicting organic carbon concentration, depth of NO3 À penetration, and pore water Fe2+ , and less so for Mn ocean, with sediment area as a function of overlying oxygen concentration and average depth related

  6. Kinematics and Sedimentary Balance of the Sub-Himalayan Zone, Western Nepal

    E-Print Network [OSTI]

    Husson, Laurent

    Kinematics and Sedimentary Balance of the Sub-Himalayan Zone, Western Nepal Laurent Husson1 behavior of the prism, extrapolation of the sediment transfer to the entire western Nepal Siwalik is valid balance of the Sub-Himalayan Zone, western Nepal, in K. R. McClay, ed., Thrust tectonics and hydrocarbon

  7. Block-conjugate-gradient method

    SciTech Connect (OSTI)

    McCarthy, J.F. (Department of Physics, Indiana University, Bloomington, Indiana 47405 (US))

    1989-09-15T23:59:59.000Z

    It is shown that by using the block-conjugate-gradient method several, say {ital s}, columns of the inverse Kogut-Susskind fermion matrix can be found simultaneously, in less time than it would take to run the standard conjugate-gradient algorithm {ital s} times. The method improves in efficiency relative to the standard conjugate-gradient algorithm as the fermion mass is decreased and as the value of the coupling is pushed to its limit before the finite-size effects become important. Thus it is potentially useful for measuring propagators in large lattice-gauge-theory calculations of the particle spectrum.

  8. Exchange bias and blocking temperature distribution of Fe-film/CoO-nanoparticle hybrid bilayers

    E-Print Network [OSTI]

    Krishnan, Kannan M.

    relaxation in a Fe-film/CoO-nanoparticle hybrid system Appl. Phys. Lett. 101, 132401 (2012); 10 anisotropy energy per unit volume and V is the grain volume. Therefore, hybrid EB bilayers with the AF layer beExchange bias and blocking temperature distribution of Fe-film/CoO-nanoparticle hybrid bilayers Wei

  9. Doped Y.sub.2O.sub.3 buffer layers for laminated conductors

    DOE Patents [OSTI]

    Paranthaman, Mariappan Parans (Knoxville, TN) [Knoxville, TN; Schoop, Urs (Westborough, MA) [Westborough, MA; Goyal, Amit (Knoxville, TN) [Knoxville, TN; Thieme, Cornelis Leo Hans (Westborough, MA) [Westborough, MA; Verebelyi, Darren T. (Oxford, MA) [Oxford, MA; Rupich, Martin W. (Framingham, MA) [Framingham, MA

    2007-08-21T23:59:59.000Z

    A laminated conductor includes a metallic substrate having a surface, a biaxially textured buffer layer supported by the surface of the metallic substrate, the biaxially textured buffer layer comprising Y.sub.2O.sub.3 and a dopant for blocking cation diffusion through the Y.sub.2O.sub.3, and a biaxially textured conductor layer supported by the biaxially textured buffer layer.

  10. Net Requirements Transparency Process for Slice/Block Customers

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

    SliceBlock contract in the Pre-TRM contracts provided those customers with block step ups to reduce non-BPA resources to integrate SliceBlock power, Block Step Ups for the...

  11. Gas block mechanism for water removal in fuel cells

    DOE Patents [OSTI]

    Issacci, Farrokh; Rehg, Timothy J.

    2004-02-03T23:59:59.000Z

    The present invention is directed to apparatus and method for cathode-side disposal of water in an electrochemical fuel cell. There is a cathode plate. Within a surface of the plate is a flow field comprised of interdigitated channels. During operation of the fuel cell, cathode gas flows by convection through a gas diffusion layer above the flow field. Positioned at points adjacent to the flow field are one or more porous gas block mediums that have pores sized such that water is sipped off to the outside of the flow field by capillary flow and cathode gas is blocked from flowing through the medium. On the other surface of the plate is a channel in fluid communication with each porous gas block mediums. The method for water disposal in a fuel cell comprises installing the cathode plate assemblies at the cathode sides of the stack of fuel cells and manifolding the single water channel of each of the cathode plate assemblies to the coolant flow that feeds coolant plates in the stack.

  12. JOURNAL OF SEDIMENTARY RESEARCH, VOL. 70, NO. 1, JANUARY, 2000, P. 227239 Copyright 2000, SEPM (Society for Sedimentary Geology) 1073-130X/00/070-227/$03.00

    E-Print Network [OSTI]

    Haszeldine, Stuart

    (Society for Sedimentary Geology) 1073-130X/00/070-227/$03.00 ANKERITE CEMENTATION IN DEEPLY BURIED.K. e-mail: j.hendry@qub.ac.uk 2 Department of Geology and Geophysics, University of Edinburgh, Grant

  13. Community Service Block Grant Loan Program (Illinois)

    Broader source: Energy.gov [DOE]

    Community Service Block Grant Loan Program is a partnership among the Department of Commerce and Economic Opportunity, community action agencies, and the Illinois Ventures for Community Action. The...

  14. BLOCK STRUCTURED QUADRATIC PROGRAMMING FOR THE ...

    E-Print Network [OSTI]

    2009-09-11T23:59:59.000Z

    Block Structured Quadratic Programming for the Direct Multiple Shooting Method. 3. Figure 1. Coordinates, angles, and forces in the single–track car model used ...

  15. Soft-ratchet modeling of end-point memory in the nonlinear resonant response of sedimentary rocks

    E-Print Network [OSTI]

    Soft-ratchet modeling of end-point memory in the nonlinear resonant response of sedimentary rocks. The subsystem of ruptured bonds is shown to be of a soft-ratchet type, so that its response to an alternating

  16. Advanced Horizontal Well Recirculation Systems for Geothermal Energy Recovery in Sedimentary and Crystalline Formations

    SciTech Connect (OSTI)

    Bruno, Mike; Detwiler, Russell L; Lao, Kang; Serajian, Vahid; Elkhoury, Jean; Diessl, Julia; White, Nicky

    2012-12-13T23:59:59.000Z

    There is increased recognition that geothermal energy resources are more widespread than previously thought, with potential for providing a significant amount of sustainable clean energy worldwide. Recent advances in drilling, completion, and production technology from the oil and gas industry can now be applied to unlock vast new geothermal resources, with some estimates for potential electricity generation from geothermal energy now on the order of 2 million megawatts. The primary objectives of this DOE research effort are to develop and document optimum design configurations and operating practices to produce geothermal power from hot permeable sedimentary and crystalline formations using advanced horizontal well recirculation systems. During Phase I of this research project Terralog Technologies USA and The University of California, Irvine (UCI), have completed preliminary investigations and documentation of advanced design concepts for paired horizontal well recirculation systems, optimally configured for geothermal energy recovery in permeable sedimentary and crystalline formations of varying structure and material properties. We have also identified significant geologic resources appropriate for application of such technology. The main challenge for such recirculation systems is to optimize both the design configuration and the operating practices for cost-effective geothermal energy recovery. These will be strongly influenced by sedimentary formation properties, including thickness and dip, temperature, thermal conductivity, heat capacity, permeability, and porosity; and by working fluid properties.

  17. Estimate of the Geothermal Energy Resource in the Major Sedimentary Basins in the United States (Presentation)

    SciTech Connect (OSTI)

    Esposito, A.; Porro, C.; Augustine, C.; Roberts, B.

    2012-09-01T23:59:59.000Z

    Because most sedimentary basins have been explored for oil and gas, well logs, temperatures at depth, and reservoir properties such as depth to basement and formation thickness are well known. The availability of this data reduces exploration risk and allows development of geologic exploration models for each basin. This study estimates the magnitude of recoverable geothermal energy from 15 major known U.S. sedimentary basins and ranks these basins relative to their potential. The total available thermal resource for each basin was estimated using the volumetric heat-in-place method originally proposed by (Muffler, 1979). A qualitative recovery factor was determined for each basin based on data on flow volume, hydrothermal recharge, and vertical and horizontal permeability. Total sedimentary thickness maps, stratigraphic columns, cross sections, and temperature gradient information was gathered for each basin from published articles, USGS reports, and state geological survey reports. When published data were insufficient, thermal gradients and reservoir properties were derived from oil and gas well logs obtained on oil and gas commission databases. Basin stratigraphy, structural history, and groundwater circulation patterns were studied in order to develop a model that estimates resource size, temperature distribution, and a probable quantitative recovery factor.

  18. Estimate of Geothermal Energy Resource in Major U.S. Sedimentary Basins (Presentation)

    SciTech Connect (OSTI)

    Porro, C.; Augustine, C.

    2012-04-01T23:59:59.000Z

    This study estimates the magnitude of geothermal energy from fifteen major known US sedimentary basins and ranks these basins relative to their potential. Because most sedimentary basins have been explored for oil and gas, well logs, temperatures at depth, and reservoir properties are known. This reduces exploration risk and allows development of geologic exploration models for each basin as well as a relative assessment of geologic risk elements for each play. The total available thermal resource for each basin was estimated using the volumetric heat-in-place method originally proposed by Muffler (USGS). Total sedimentary thickness maps, stratigraphic columns, cross sections, and temperature gradient Information were gathered for each basin from published articles, USGS reports, and state geological survey reports. When published data was insufficient, thermal gradients and reservoir properties were derived from oil and gas well logs obtained on oil and gas commission websites. Basin stratigraphy, structural history, and groundwater circulation patterns were studied in order to develop a model that estimates resource size and temperature distribution, and to qualitatively assess reservoir productivity.

  19. Case study of a sabkha sedimentary environment: Mallahat al Bariquah, Libya

    SciTech Connect (OSTI)

    Krason, J.

    1987-05-01T23:59:59.000Z

    The importance of the sabkha sedimentary environment for formation and/or accumulation of hydrocarbons, salts, and various metalliferous mineral deposits has been recognized by many geologists. A sabkha in which sedimentation and the formation of salt deposits and hydrocarbons is in progress is located along the Mediterranean Sea coast, in northwestern Libya and northeastern Tunisia. The sabkha Mallahat al Bariquah was drilled in a regular grid at 1-km spacing; 63 holes have been completed. The sabkha and its vicinity were geologically mapped (1:20,000). Several hundred core and loose rock samples were thoroughly examined with regard to the lithology, mineralogy, paleontology, and chemical composition. The chemistry of brine from each drill hole and solar pan was determined. Three 24-hour pumping tests were performed, and the hydrogeological conditions of the sabkha were analyzed in detail. Economically valuable bedded salt reserves of 170,800,000 MT of NaCl were discovered and proven. Additionally, over 30 million MT of potassium, magnesium, and sodium salts including bromides are recoverable from the brine. Although marine-coastal sabkhas are common, the extensive scope of this study is unique. Mallahat al Bariquah sabkha is not unique with regard to its geographic, climatic, or sedimentary environments. Therefore, Mallahat al Bariquah can be considered as a model applicable in exploration for and study of similar sedimentary environments in other geographic regions and older geologic epochs.

  20. Thermal Expansion Behavior of Cerro Prieto Sandstones and Other Sedimentary Rocks Under Stress

    SciTech Connect (OSTI)

    Contreras, E.; Bermejo, F.

    1983-12-15T23:59:59.000Z

    This paper describes the experimental work and presents the results of a research program carried out to investigate the thermal expansion behavior of sedimentary rocks under high stress conditions. The aspects that were investigated include the effects of temperature, temperature cycling, and confining pressure. Furthermore, the validity of the usual assumption on thermal expansion isotropy was investigated. On the other hand, the matrix thermal expansion concept is analyzed and its physical meaning and aplications are discussed. The effect of temperature on porosity is also a subject investigated regarding experimental methods for its estimation and comparison of earlier results. The experiments carried out consisted basically of thermal strain versus temperature measurements on jacketed and unjacketed samples subjected to different confining pressures and covering the temperature range from 25 C to 280 C and the pressure range from 3.0 MPa to 34.4 MPa. A review of earlier work is included as a reference frame to discuss and compare the results of this work, as well as to emphasize the limited extent of the research on thermal expansion behavior of sedimentary rocks that had been accomplished. Results are presented by means of thermal strain versus temperature curves and tabular data of thermal expansion coefficients. Several important conclusions for laborarory and field applications are reached from each of the aspects investigated. The wide research scope of considerable amount of data reported may represent an important contribution to the knowledge of thermal expansion behavior of sedimentary rocks.

  1. GaAs-based self-aligned laser incorporating InGaP opto-electronic confinement layer

    E-Print Network [OSTI]

    GaAs-based self-aligned laser incorporating InGaP opto-electronic confinement layer K.M. Groom, B fabrication, is demonstrated. An n-doped InGaP layer is utilised for both electrical and optical confinement-doped InGaP current blocking layer that also provides optical confinement. This tech- nology relies

  2. Sedimentary and faunal analysis of a marginal marine section, the Stone City Member (middle eocene), Crockett Formation, Burleson County, Texas

    E-Print Network [OSTI]

    Nelms, Katherine Currier

    1979-01-01T23:59:59.000Z

    partial fulf1llment of the requirement for the degree of MASTER OF SCIENCE December 1979 Major Subiect: Geology SEDIMENTARY AND FAUNAL ANALYSIS OF A MARGINAL MARINE SECTION, THE STONE CITY MEMBER (MIDDLE EOCENE), CROCKETT FORMATION, BURLESON COUNTY..., TEXAS A Thesis by KATHERINE CURRIER NELMS Approved as to style and content by: Chairman Cemmittek Head of par ment Member Member December 1979 ABSTRACT SEDIMENTARY AND FAUNAL ANALYSIS OF A MARGINAL MARINE SECTION, THE STONE CITY MEMBER (MIDDLE...

  3. Linear block codes for block fading channels based on Hadamard matrices 

    E-Print Network [OSTI]

    Spyrou, Spyros

    2006-04-12T23:59:59.000Z

    We investigate the creation of linear block codes using Hadamard matrices for block fading channels. The aforementioned codes are very easy to find and have bounded cross correlation spectrum. The optimality is with respect ...

  4. Linear block codes for block fading channels based on Hadamard matrices

    E-Print Network [OSTI]

    Spyrou, Spyros

    2006-04-12T23:59:59.000Z

    We investigate the creation of linear block codes using Hadamard matrices for block fading channels. The aforementioned codes are very easy to find and have bounded cross correlation spectrum. The optimality is with respect to the metric...

  5. Self-Assembly of Rod-Coil Block Copolymers And Their Application in Electroluminescent Devices

    SciTech Connect (OSTI)

    Tao, Y.; Ma, B.; Segalman, R.A.

    2009-05-26T23:59:59.000Z

    The formation of alternating electron transporting and hole transporting 15 nm lamellae within the active layer of an organic light-emitting diode (OLED) is demonstrated to improve device performance. A new multifunctional bipolar rod-coil block copolymer containing a poly(alkoxy phenylenevinylene) (PPV) rod-shaped block as the hole transporting and emitting material and a poly(vinyloxadiazole) coil-shaped electron transporting block is synthesized. This new block copolymer is the active material of a self-assembling multicomponent electroluminescent device that can be deposited in a single step. In the thin film, grazing incidence X-ray scattering and transmission electron microscopy demonstrate that the layers form grains which are oriented bimodally: parallel and perpendicular from the anode. In this mixed orientation, the device demonstrates better performance than those with either pure PPV or a blend of the two analogous homopolymers as the active materials, i.e., higher external quantum efficiency (EQE) and brightness. This improved device performance is mainly attributed to the bipolar functionality and microphase separation of the block copolymer, which provide highly efficient hole and electron recombination at the nanodomain interfaces.

  6. Self-Assembly of Rod-Coil Block Copolymers and Their Application in Electroluminescent Devices

    SciTech Connect (OSTI)

    Tao, Yuefei; Ma, Biwu; Segalman, Rachel A. (UCB); (LBNL)

    2008-11-18T23:59:59.000Z

    The formation of alternating electron transporting and hole transporting 15 nm lamellae within the active layer of an organic light-emitting diode (OLED) is demonstrated to improve device performance. A new multifunctional bipolar rod-coil block copolymer containing a poly(alkoxy phenylenevinylene) (PPV) rod-shaped block as the hole transporting and emitting material and a poly(vinyloxadiazole) coil-shaped electron transporting block is synthesized. This new block copolymer is the active material of a self-assembling multicomponent electroluminescent device that can be deposited in a single step. In the thin film, grazing incidence X-ray scattering and transmission electron microscopy demonstrate that the layers form grains which are oriented bimodally: parallel and perpendicular from the anode. In this mixed orientation, the device demonstrates better performance than those with either pure PPV or a blend of the two analogous homopolymers as the active materials, i.e., higher external quantum efficiency (EQE) and brightness. This improved device performance is mainly attributed to the bipolar functionality and microphase separation of the block copolymer, which provide highly efficient hole and electron recombination at the nanodomain interfaces.

  7. Bounds on the Error Probability of ML Decoding for Block and Turbo-Block Codes

    E-Print Network [OSTI]

    Sason, Igal

    Bounds on the Error Probability of ML Decoding for Block and Turbo-Block Codes Igal Sason 32000, Israel March 1999 Abstract The performance of either structured or random turbo-block codes on the other. We focus here on uniformly interleaved and parallel concatenated turbo-Hamming codes

  8. The XY Spin Chain Random Block Operators

    E-Print Network [OSTI]

    Jung, Paul

    The XY Spin Chain Random Block Operators Proof of Main Result Open Questions Localization for Random Block Operators Related to the XY Spin Chain Jacob W. Chapman Division of Science Southern Wesleyan University Central, SC Joint work with G¨unter Stolz UAB NSF-CBMS Conference on Quantum Spin

  9. Heterogeneous ultrathin films fabricated by alternate assembly of exfoliated layered double hydroxides and polyanionw

    E-Print Network [OSTI]

    Wang, Zhong L.

    Heterogeneous ultrathin films fabricated by alternate assembly of exfoliated layered double September 2008 DOI: 10.1039/b807479h Transparent heterogeneous ultrathin films of exfoliated layered double substrate supported or free-standing. Recently, using exfoliated LDHs nanosheets as building blocks, Sasaki

  10. Photonic layered media

    DOE Patents [OSTI]

    Fleming, James G. (Albuquerque, NM); Lin, Shawn-Yu (Albuquerque, NM)

    2002-01-01T23:59:59.000Z

    A new class of structured dielectric media which exhibit significant photonic bandstructure has been invented. The new structures, called photonic layered media, are easy to fabricate using existing layer-by-layer growth techniques, and offer the ability to significantly extend our practical ability to tailor the properties of such optical materials.

  11. Vertical Profiles Of {sup 226}Ra, {sup 232}Th And {sup 40}K Activities In Rocks From The Irati Formation Of The Parana Sedimentary Basin, Southern Brazil

    SciTech Connect (OSTI)

    Ferreira, Ademar de O.; Bastos, Rodrigo O.; Appoloni, Carlos R. [Laboratorio de Fisica Nuclear Aplicada-Departamento de Fisica-CCE Universidade Estadual de Londrina-Campus Universitario Rodovia Celso Garcia Cid s/n, Cx. Postal 6001 86051-990 Londrina (Puerto Rico)

    2008-08-07T23:59:59.000Z

    Naturally occurring radioisotopes are present in different concentrations in sedimentary rocks, reflecting the origin of the sediments, the depositional environment, and more recent events such as weathering and erosion. Using a high-resolution {gamma}-ray spectrometry methodology, sedimentary rocks were measured to assess the concentration activities of the natural radioisotopes. The surveyed rocks are from the Irati formation in the Parana sedimentary basin, which are exposed by an abandoned, open-pit limestone mine, in the city of Sapopema, southern Brazil. The exposed vertical profile is 5 m, and its stratigraphy is represented by an alternation of limestone and bituminous shale (layers being a few decimeters thick), and some millimeter rhythm layers with limestone and bituminous shale laminas. Eleven samples were collected along this profile, each of them dried in the open air during 48 hours, sieved through 4 mm mesh and sealed in cylindrical recipients. Measurements were accomplished using a 66% relative efficiency HPGE detector connected to a standard gamma ray spectrometry electronic chain. The detector efficiency in the range of 60 to 1800 keV was carried out with the certified IAEA-385 sediment sample. The Lower Limit of Detection (LLD) to the system is 2.40 Bq{center_dot}kg{sup -1} for {sup 226}Ra, 1.84 Bq{center_dot}kg{sup -1} for {sup 232}Th and 4.20 Bq{center_dot}kg{sup -1} for {sup 40}K. Activity concentrations were determined for {sup 226}Ra (from 16.22 to 151.55 Bq{center_dot}kg{sup -1}), {sup 232}Th (from 2.93 to 56.12 Bq{center_dot}kg{sup -1}) and {sup 40}K (from 38.45 to 644.63 Bq{center_dot}kg{sup -1}). The layers enriched with organic matter presented the higher values of activity. The measured concentrations of the natural radioisotopes were lower for limestone samples (average values and respective deviations were 22.81{+-}0.22 Bq{center_dot}kg{sup -1} for {sup 226}Ra, 4.21{+-}0.07 Bq{center_dot}kg{sup -1} for {sup 232}Th, and 50.11{+-}0.82 Bq{center_dot}kg{sup -1} for {sup 40}K). Higher concentrations were measured for the bituminous shale samples (average values and respective deviations were 108.10{+-}12.17 Bq{center_dot}kg{sup -1} for {sup 226}Ra, 43.69{+-}0.30 Bq{center_dot}kg{sup -1} for {sup 232}Th, and 465.82{+-}3.99 Bq{center_dot}kg{sup -1} for {sup 40}K). The concentrations were intermediate for the rhythmite samples (average values and respective deviations were 50.69{+-}1.09 Bq{center_dot}kg{sup -1} for {sup 226}Ra, 7.63{+-}0.21 Bq{center_dot}kg{sup -1} for {sup 232}Th, and 85.96{+-}2.47 Bq{center_dot}kg{sup -1} for {sup 40}K). As the analyzed rocks are raw materials for the ceramic, cement and soil correction compound industries, the results of this work furnish data to estimate the contribution of these products to the general public's radiation exposure.

  12. Sedimentary facies and history of Upper Jurassic (Oxfordian) Smackover Formation in Conecuh embayment of south Alabama

    SciTech Connect (OSTI)

    Esposito, R.A.; King, D.T. Jr.

    1986-05-01T23:59:59.000Z

    The Upper Jurassic (Oxfordian) Smackover Formation is an important petroleum-bearing unit in the deep subsurface of the gulf rim. The authors studied the sedimentary facies and sedimentary history of the Smackover in Escambia County, Alabama. The wells studied form an east-west strike section across the Conecuh embayment in south Alabama. In the central part of the embayment, the Smackover is 350 ft (107 m) thick and consists of a vertical sequence of the following correlative sedimentary facies. In stratigraphic order, they are: (1) basal, shallow-water facies that rests conformably on the underlying Norphlet and forms a discontinuous interval a few feet thick, consisting of algal-laminated mudstones, sandy packstones and grainstones, and clast horizons; (2) basinal, deep-water facies, 175 ft (53 m) thick, consisting of resedimented debris beds (oolitic-pisolitic-graded beds, 8 in or 24 cm thick) intercalated with laminated, very argillaceous mudstone and wackestone; (3) parallel and wavy-laminated, sparsely fossiliferous packstone and wackestone, 80 ft (24 m) thick, interpreted as a carbonate slope deposit that accumulated below storm wave base; (4) bioturbated oolitic, pelletal, and fossiliferous packstone with faint relict laminations, 45 ft (14 m) thick, containing abundant Thalassinoides and Zoophycus traces and interpreted as below normal wave base deposits; and (5) oolitic and fossiliferous grainstone, 50 ft (15 m) thick, interpreted as deposits formed above wave base (shelf-platform deposits). The above sequence suggests progradation of a carbonate shelf. This progradation probably followed the rapid eustatic sea-level rise of the Oxfordian.

  13. Optimization of the Cathode Catalyst Layer Composition of a PEM Fuel Cell Using a Novel 2-Step Preparation Method

    E-Print Network [OSTI]

    Friedmann, Roland

    2009-03-05T23:59:59.000Z

    For good performance and high durability PEM fuel cells run at high water saturation levels. However, excess liquid water generated by the oxygen reduction reaction at the cathode can block pores in the catalyst layer so that reactant gases can...

  14. Commercial applications of block copolymer photonic gels

    E-Print Network [OSTI]

    Lou, Sally S

    2008-01-01T23:59:59.000Z

    Block copolymer photonic gels are a simple and easily processed material which responds rapidly to environmental stimuli through a color change. The diblock copolymer that forms the gel self-assembles into a lamellar ...

  15. Numerical block diagonalization of matrix ?-algebras with ...

    E-Print Network [OSTI]

    2009-11-21T23:59:59.000Z

    successfully, see the recent survey [11] for details. Of particular .... i, the matrices in the algebra EiA Ei have a common nonzero diagonal block indexed by the ...

  16. Ordered Hydrophobic Organosilicates Templated by Block Copolymers

    E-Print Network [OSTI]

    Evans, Paul G.

    functionalities for photonic applications. Introduction Organic-inorganic hybrid nanocomposites, which combine of the nanocomposites are very sensitive to the polymer-matrix interface and the intrinsic properties of the block

  17. Magnetic nanostructures patterned by block copolymer lithography

    E-Print Network [OSTI]

    Ilievski, Filip, 1980-

    2008-01-01T23:59:59.000Z

    The aim of this research was twofold: understanding the methods of patterning magnetic films using self-assembled block copolymer masks and examining the magnetic reversal mechanisms of as deposited and patterned magnetic ...

  18. The structure of GaAs/Si(211) heteroepitaxial layers

    SciTech Connect (OSTI)

    Liliental-Weber, Z.; Weber, E.R.; Washburn, J.; Liu, T.Y.; Kroemer, H.

    1985-05-01T23:59:59.000Z

    Gallium arsenide films grown on (211)Si by molecular-beam epitaxy have been investigated using transmission electron microscopy. The main defects observed in the alloy were of misfit dislocations, stacking faults, and microtwin lamellas. Silicon surface preparation was found to play an important role on the density of defects formed at the Si/GaAs interface. Two different types of strained-layer superlattices, InGaAs/InGaP and InGaAs/GaAs, were applied either directly to the Si substrate, to a graded layer (GaP-InGaP), or to a GaAs buffer layer to stop the defect propagation into the GaAs films. Applying InGaAs/GaAs instead of InGaAs/InGaP was found to be more effective in blocking defect propagation. In all cases of strained-layer superlattices investigated, dislocation propagation was stopped primarily at the top interface between the superlattice package and GaAs. Graded layers and unstrained AlGaAs/GaAs superlattices did not significantly block dislocations propagating from the interface with Si. Growing of a 50 nm GaAs buffer layer at 505/sup 0/C followed by 10 strained-layer superlattices of InGaAs/GaAs (5 nm each) resulted in the lowest dislocation density in the GaAs layer (approx.5 x 10/sup 7//cm/sup 2/) among the structures investigated. This value is comparable to the recently reported density of dislocations in the GaAs layers grown on (100)Si substrates. Applying three sets of the same strained layers decreased the density of dislocations an additional approx.2 to 3 times.

  19. Eco blocks: Nontraditional use for mixed wastepaper

    SciTech Connect (OSTI)

    Springer, A.M. [Miami Univ., Oxford, OH (United States); Rose, M. [EKA Nobel, Ashland, VA (United States); Ryu, R. [North Carolina State Univ., Raleigh, NC (United States)

    1996-05-01T23:59:59.000Z

    In 1991, approximately 37%, by weight, of the materials going to landfills was paper. Landfill space in the US is becoming a critical problem in certain areas. This mixed paper fraction does not have a good use in traditional recycling applications. Wastepaper dealers have an excess of mixed wastepaper. This project explored the possibility of producing a value added product that would consume large amounts of mixed waste. The product selected was to produce 5 x 10 x 20 cm paper blocks. These blocks could find applications in building structures. The blocks were modeled using a heated platen press and an aluminum mold, fitted with porous brass plates on the top and bottom in order to ease water removal. The material produced was similar to synthetic wood. Unlike wood, it could be molded into different shapes if desired. The density and physical properties of tensile strength and modulus were determined and compared to wood. The water absorption properties were evaluated and found to be a potential problem. Various coatings were investigated in order to improve the water holdout properties. A manufacturing process was laid out and the cost of block production was estimated to be from $0.15 to $0.24 per block, which would make it competitive with other blocks.

  20. Tunable Morphologies from Charged Block Copolymers

    SciTech Connect (OSTI)

    Goswami, Monojoy [ORNL; Sumpter, Bobby G [ORNL; Mays, Jimmy [ORNL; Messman, Jamie M [ORNL

    2010-01-01T23:59:59.000Z

    The bulk morphologies formed by a new class of charged block copolymers, 75 vol % fluorinated polyisoprene (FPI) 25 vol% sulfonated polystyrene (PSS) with 50% sulfonation, are characterized, and the fundamental underlying forces that promote the self-assembly processes are elucidated. The results show how the bulk morphologies are substantially different from their uncharged diblock counterparts (PS-PI) and also how morphology can be tuned with volume fraction of the charged block and the casting solvent. A physical understanding based on the underlying strong electrostatic interactions between the charged block and counterions is obtained using Monte Carlo (MC) and Molecular Dynamics (MD) simulations. The 75/25 FPI-PSS shows hexagonal morphologies with the minority blocks (PSS) forming the continuous phase due to charge percolation and the FPI blocks arranged in hexagonal cylinders. Some long-range order can be sustained even if lipophobicity is increased (addition of water), albeit with lower dimensional structures. However, thermal annealing provides sufficient energy to disrupt the percolated charges and promotes aggregation of ionic sites which leads to a disordered system. Diverse and atypical morphologies are readily accessible by simply changing the number distribution of the charges on PSS block.

  1. Liquid phase epitaxial growth and characterization of germanium far infrared blocked impurity band detectors

    SciTech Connect (OSTI)

    Bandaru, Jordana

    2001-05-12T23:59:59.000Z

    Germanium Blocked Impurity Band (BIB) detectors require a high purity blocking layer (< 10{sup 13} cm{sup -3}) approximately 1 mm thick grown on a heavily doped active layer ({approx} 10{sup 16} cm{sup -3}) approximately 20 mm thick. Epilayers were grown using liquid phase epitaxy (LPE) of germanium out of lead solution. The effects of the crystallographic orientation of the germanium substrate on LPE growth modes were explored. Growth was studied on substrates oriented by Laue x-ray diffraction between 0.02{sup o} and 10{sup o} from the {l_brace}111{r_brace} toward the {l_brace}100{r_brace}. Terrace growth was observed, with increasing terrace height for larger misorientation angles. It was found that the purity of the blocking layer was limited by the presence of phosphorus in the lead solvent. Unintentionally doped Ge layers contained {approx}10{sup 15} cm{sup -3} phosphorus as determined by Hall effect measurements and Photothermal Ionization Spectroscopy (PTIS). Lead purification by vacuum distillation and dilution reduced the phosphorus concentration in the layers to {approx} 10{sup 14} cm{sup -3} but further reduction was not observed with successive distillation runs. The graphite distillation and growth components as an additional phosphorus source cannot be ruled out. Antimony ({approx}10{sup 16} cm{sup -3}) was used as a dopant for the active BIB layer. A reduction in the donor binding energy due to impurity banding was observed by variable temperature Hall effect measurements. A BIB detector fabricated from an Sb-doped Ge layer grown on a pure substrate showed a low energy photoconductive onset ({approx}6 meV). Spreading resistance measurements on doped layers revealed a nonuniform dopant distribution with Sb pile-up at the layer surface, which must be removed by chemomechanical polishing. Sb diffusion into the pure substrate was observed by Secondary Ion Mass Spectroscopy (SIMS) for epilayers grown at 650 C. The Sb concentration at the interface dropped by an order of magnitude over {approx} 1.5 {micro}m. Layers grown at 550 C did not show significant Sb diffusion. Sn doped In{sub 2}O{sub 3} (ITO) was studied for use in far infrared transparent low temperature contacts for BIB arrays. It was found that {approx}100 nm of ITO deposited on Ge remains electrically conducting at 4 K and is {approx}90% transparent in the far infrared. ITO should be suitable for passivating contacts to Ge BIB arrays.

  2. Excavatability Assessment of Weathered Sedimentary Rock Mass Using Seismic Velocity Method

    SciTech Connect (OSTI)

    Bin Mohamad, Edy Tonnizam; Noor, Muhazian Md; Isa, Mohamed Fauzi Bin Md.; Mazlan, Ain Naadia [Department of Geotechnics and Transportation, Faculty of Civil Engineering, Universiti Teknologi Malaysia, 81310 UTM Skudai. Johor (Malaysia); Saad, Rosli [Universiti Sains Malaysia, Penang (Malaysia)

    2010-12-23T23:59:59.000Z

    Seismic refraction method is one of the most popular methods in assessing surface excavation. The main objective of the seismic data acquisition is to delineate the subsurface into velocity profiles as different velocity can be correlated to identify different materials. The physical principal used for the determination of excavatability is that seismic waves travel faster through denser material as compared to less consolidated material. In general, a lower velocity indicates material that is soft and a higher velocity indicates more difficult to be excavated. However, a few researchers have noted that seismic velocity method alone does not correlate well with the excavatability of the material. In this study, a seismic velocity method was used in Nusajaya, Johor to assess the accuracy of this seismic velocity method with excavatability of the weathered sedimentary rock mass. A direct ripping run by monitoring the actual production of ripping has been employed at later stage and compared to the ripper manufacturer's recommendation. This paper presents the findings of the seismic velocity tests in weathered sedimentary area. The reliability of using this method with the actual rippability trials is also presented.

  3. Heat absorption in sedimentary cover in some areas of the USA and Canada

    SciTech Connect (OSTI)

    Pilchin, A.N.

    1995-09-01T23:59:59.000Z

    For study of geothermal state and presence of heat absorption intervals (HAI) in some areas of the USA and Canada the methods of HAI discovery in sedimentary cover (Pilchin 1978, 1983) were used. HAI are determined on the Paleozoic surface of all areas in the Southern Alberta and in the north part of Williston Basin (Canada). In the Swan Hills area the HAI are observed in Grosmont and Beaverhile intervals. In the USA the HAI have been found in sedimentary cover of areas Fifth Water Site (Utah), Valles Caldera (New Mexico) and also in Michigan Basin, Central Ventura Basin and Salton Sea. Average heat generation is -0.04 mW/m{sup 3} in Cretaceous-Paleocene of Fifth Water Site area, -0.11 mW/m{sup 3} in VC-1 Well (Valles Caldera, 20-760 m), -0.06 mW/m{sup 3} in State 2-14 Well (Salton Sea, 300-900 m). In Michigan Basin the HAI are discovered in upper Michigan Formation, Sunbury Shale, Clinton Shale. In Central Ventura Basin the average heat generation is -0.007 mW/m{sup 3} and -0.018 mW/m{sup 3} correspondingly for Pfeiler-10 and Diedrich-1 Wells (Oxnard Field) and 0 for Lloyd-26 and Lloyd-161 Wells (Ventura Avenue Field). The conducted investigations show that in all studied regions the HAI are present.

  4. Phosphine Oxide Based Electron Transporting and Hole Blocking...

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

    Oxide Based Electron Transporting and Hole Blocking Materials for Blue Electrophosphorescent Organic Light Emitting Phosphine Oxide Based Electron Transporting and Hole Blocking...

  5. Thermodynamics and Ionic Conductivity of Block Copolymer Electrolytes

    E-Print Network [OSTI]

    Wanakule, Nisita Sidra

    2010-01-01T23:59:59.000Z

    2.3 REFERENCES Flory, P.J. , Thermodynamics of high polymerBlock Copolymer Thermodynamics - Theory And Experiment.on block copolymer thermodynamics by measuring the changes

  6. Energy Efficiency and Conservation Block Grant Program Success...

    Energy Savers [EERE]

    Success Stories Energy Efficiency and Conservation Block Grant Program Success Stories RSS Read Energy Efficiency and Conservation Block Grant Program success stories. August 25,...

  7. BLOCK DIAGONALLY DOMINANT POSITIVE DEFINITE APPROXIMATE FILTERS AND SMOOTHERS

    E-Print Network [OSTI]

    BLOCK DIAGONALLY DOMINANT POSITIVE DEFINITE APPROXIMATE FILTERS AND SMOOTHERS Running title: BLOCK the loss of positive definiteness in the approximate equations. Therefore previous analyses have

  8. Energy Efficiency and Conservation Block Grant Program Fact Sheet...

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

    Energy Efficiency and Conservation Block Grant Program Fact Sheet Energy Efficiency and Conservation Block Grant Program Fact Sheet The U.S. Department of Energy's (DOE) Energy...

  9. Guidance for Energy Efficiency and Conservation Block Grant Grantees...

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

    Guidance for Energy Efficiency and Conservation Block Grant Grantees on Financing Programs Guidance for Energy Efficiency and Conservation Block Grant Grantees on Financing...

  10. State Energy Program and Energy Efficiency and Conservation Block...

    Energy Savers [EERE]

    Energy Efficiency and Conservation Block Grant Financing Program Guidance Grantee Letter Guidance For Energy Efficiency And Conservation Block Grant Grantees On Financing Programs...

  11. Minimum Aberration Blocking Schemes for 128-Run Designs

    E-Print Network [OSTI]

    Xu, Hongquan; Mee, Robert W.

    2010-01-01T23:59:59.000Z

    Split-Plot Fractional Factorial Designs,” Journal of QualityAberration in Blocked Factorial Designs,” Technometrics, 39,Blocked Regular Fractional Factorial Designs With Minimum

  12. Minimum Aberration Blocking Schemes for 128-Run Designs

    E-Print Network [OSTI]

    Hongquan Xu; Robert W. Mee

    2011-01-01T23:59:59.000Z

    Split-Plot Fractional Factorial Designs,” Journal of QualityAberration in Blocked Factorial Designs,” Technometrics, 39,Blocked Regular Fractional Factorial Designs With Minimum

  13. Layered plasma polymer composite membranes

    DOE Patents [OSTI]

    Babcock, W.C.

    1994-10-11T23:59:59.000Z

    Layered plasma polymer composite fluid separation membranes are disclosed, which comprise alternating selective and permeable layers for a total of at least 2n layers, where n is [>=]2 and is the number of selective layers. 2 figs.

  14. Poly(3-hexylthiophene)-block-poly(pyridinium phenylene)s: Block Polymers of p- and n-Type Semiconductors

    E-Print Network [OSTI]

    Swager, Timothy Manning

    Conjugated crystalline?crystalline donor?acceptor?donor block copolymer semiconductors, with regioregular poly(3-hexylthiophene) as a donor (p-type) block and poly(pyridinium pheneylene) as an acceptor (n-type) block within ...

  15. 100th anniversary special paper: Sedimentary mineral deposits and the evolution of earth's near-surface environments

    SciTech Connect (OSTI)

    Holland, H.D. [Harvard University, Cambridge, MA (United States). Dept. of Earth & Planetary Science

    2005-12-15T23:59:59.000Z

    The nature of sedimentary mineral deposits has evolved during Earth's history in concert with changes in the oxidation (redo) state of the ocean-atmosphere system, biological evolution, and the growing importance of geologically young accumulations of ore-grade material. There is now strong evidence that the atmosphere and the oceans were anoxic, or essentially anoxic, before 2.4 Ga. Banded iron formations (BIF) and the detrital uranium ores formed prior to 2.4 Ga are consistent with such a state. The period between 2.4 and 2.0 Ga is called the Great Oxidation Event by some. Its ores bear unmistakable marks of the presence of atmospheric O{sub 2}. Between 1.8 and 0.8 Ga the Earth system seems to have been remarkably stable. Sedimentary ore deposits of this period were influenced by the presence of O{sub 2}. BIF, sedimentary manganese, and phosphorites disappeared ca. 1.8 Ga, but sedimentary exhalative (SEDEX) deposits and unconformity-type uranium deposits flourished, and nonsulfide zinc deposits put in an appearance. The period between 0.8 Ga and the end of the Proterozoic at 0.54 Ga was as turbulent or more so than the Paleoproterozoic. BIF returned, as did sedimentary manganese deposits and phosphorites. A further rise in the O{sub 2} content of the atmosphere and an increase in the sulfate concentration of seawater during this period brought the composition of the atmosphere and of seawater close to their present redox state. The last 540 m.y. of Earth's history have seen the system pass through two supercycles of roughly equal length. Climate, the redox stratification of the oceans ocean mixing, and the nature of sedimentary ores were influenced by tectonically and volcanically driven changes during these supercycles. The evolution of the higher land plants gave rise to coal deposits and sandstone-type uranium ores and was important for the formation of bauxites.

  16. Layered Cathode Materials

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

    Layered Cathode Materials presented by Michael Thackeray Chemical Sciences and Engineering Division, Argonne Annual Merit Review DOE Vehicle Technologies Program Washington, D.C....

  17. Efficient methylammonium lead iodide perovskite solar cells with active layers from 300 to 900 nm

    SciTech Connect (OSTI)

    Momblona, C.; Malinkiewicz, O.; Soriano, A.; Gil-Escrig, L.; Bandiello, E.; Scheepers, M.; Bolink, H. J., E-mail: henk.bolink@uv.es [Instituto de Ciencia Molecular, Universidad de Valencia, C/Catedrático J. Beltrán 2, 46980 Paterna, Valencia (Spain); Roldán-Carmona, C. [Instituto de Ciencia Molecular, Universidad de Valencia, C/Catedrático J. Beltrán 2, 46980 Paterna, Valencia (Spain); Department of Physical Chemistry and Applied Thermodynamics, University of Córdoba, Campus Rabanales, Ed. C3, 14014, Córdoba (Spain); Edri, E. [Department of Materials and Interfaces, Weizmann Institute of Science, Herzl St. 34, Rehovot 76100 (Israel)

    2014-08-01T23:59:59.000Z

    Efficient methylammonium lead iodide perovskite-based solar cells have been prepared in which the perovskite layer is sandwiched in between two organic charge transporting layers that block holes and electrons, respectively. This configuration leads to stable and reproducible devices that do not suffer from strong hysteresis effects and when optimized lead to efficiencies close to 15%. The perovskite layer is formed by using a dual-source thermal evaporation method, whereas the organic layers are processed from solution. The dual-source thermal evaporation method leads to smooth films and allows for high precision thickness variations. Devices were prepared with perovskite layer thicknesses ranging from 160 to 900 nm. The short-circuit current observed for these devices increased with increasing perovskite layer thickness. The main parameter that decreases with increasing perovskite layer thickness is the fill factor and as a result optimum device performance is obtained for perovskite layer thickness around 300 nm. However, here we demonstrate that with a slightly oxidized electron blocking layer the fill factor for the solar cells with a perovskite layer thickness of 900 nm increases to the same values as for the devices with thin perovskite layers. As a result the power conversion efficiencies for the cells with 300 and 900 nm are very similar, 12.7% and 12%, respectively.

  18. Layering as Optimization Decomposition 3-1 Layering as OptimizationLayering as Optimization

    E-Print Network [OSTI]

    Fan, Xingzhe

    1 Layering as Optimization Decomposition 3-1 Layering as OptimizationLayering as Optimization DecompositionDecomposition Layering as Optimization Decomposition 3-2 CONTENTSCONTENTS Introduction (Marta;2 Layering as Optimization Decomposition 3-3 Layering as Optimization Decomposition Introduction By Marta

  19. Block-by-Block Growth of Single-Crystalline Si/SiGe Superlattice

    E-Print Network [OSTI]

    Yang, Peidong

    Letters Block-by-Block Growth of Single-Crystalline Si/SiGe Superlattice Nanowires Yiying Wu, Rong-defined compositional profile along the wire axis. Single-crystalline nanowires with longitudinal Si/SiGe superlattice-crystalline nano- wires with Si/SiGe superlattice structure are obtained and thoroughly characterized using

  20. Multiple density layered insulator

    DOE Patents [OSTI]

    Alger, Terry W. (Tracy, CA)

    1994-01-01T23:59:59.000Z

    A multiple density layered insulator for use with a laser is disclosed wh provides at least two different insulation materials for a laser discharge tube, where the two insulation materials have different thermoconductivities. The multiple layer insulation materials provide for improved thermoconductivity capability for improved laser operation.

  1. Multiple density layered insulator

    DOE Patents [OSTI]

    Alger, T.W.

    1994-09-06T23:59:59.000Z

    A multiple density layered insulator for use with a laser is disclosed which provides at least two different insulation materials for a laser discharge tube, where the two insulation materials have different thermoconductivities. The multiple layer insulation materials provide for improved thermoconductivity capability for improved laser operation. 4 figs.

  2. A novel power block for CSP systems

    SciTech Connect (OSTI)

    Mittelman, Gur [ASP Ltd., Advanced Solar Power, Industrial Zone, Be'er Tuviyya (Israel); Epstein, Michael [Solar Research Facilities Unit, Weizmann Institute of Science (Israel)

    2010-10-15T23:59:59.000Z

    Concentrating Solar Thermal Power (CSP) and in particular parabolic trough, is a proven large-scale solar power technology. However, CSP cost is not yet competitive with conventional alternatives unless subsidized. Current CSP plants typically include a condensing steam cycle power block which was preferably designed for a continuous operation and higher operating conditions and therefore, limits the overall plant cost effectiveness and deployment. The drawbacks of this power block are as follows: (i) no power generation during low insolation periods (ii) expensive, large condenser (typically water cooled) due to the poor extracted steam properties (high specific volume, sub-atmospheric pressure) and (iii) high installation and operation costs. In the current study, a different power block scheme is proposed to eliminate these obstacles. This power block includes a top Rankine cycle with a back pressure steam turbine and a bottoming Kalina cycle comprising another back pressure turbine and using ammonia-water mixture as a working fluid. The bottoming (moderate temperature) cycle allows power production during low insolation periods. Because of the superior ammonia-water vapor properties, the condensing system requirements are much less demanding and the operation costs are lowered. Accordingly, air cooled condensers can be used with lower economical penalty. Another advantage is that back pressure steam turbines have a less complex design than condensing steam turbines which make their costs lower. All of these improvements could make the combined cycle unit more cost effective. This unit can be applicable in both parabolic trough and central receiver (solar tower) plants. The potential advantage of the new power block is illustrated by a detailed techno-economical analysis of two 50 MW parabolic trough power plants, comparing between the standard and the novel power block. The results indicate that the proposed plant suggests a 4-11% electricity cost saving. (author)

  3. Multiple layer insulation cover

    DOE Patents [OSTI]

    Farrell, James J. (Livingston Manor, NY); Donohoe, Anthony J. (Ovid, NY)

    1981-11-03T23:59:59.000Z

    A multiple layer insulation cover for preventing heat loss in, for example, a greenhouse, is disclosed. The cover is comprised of spaced layers of thin foil covered fabric separated from each other by air spaces. The spacing is accomplished by the inflation of spaced air bladders which are integrally formed in the cover and to which the layers of the cover are secured. The bladders are inflated after the cover has been deployed in its intended use to separate the layers of the foil material. The sizes of the material layers are selected to compensate for sagging across the width of the cover so that the desired spacing is uniformly maintained when the cover has been deployed. The bladders are deflated as the cover is stored thereby expediting the storage process and reducing the amount of storage space required.

  4. Asynchronous neoglaciation and holocene climatic change reconstructed from Norwegian glaciolacustrine sedimentary sequences

    SciTech Connect (OSTI)

    Matthews, J.A. (Univ. of Wales (United Kingdom)); Karlen, W. (Univ. of Stockholm (Sweden))

    1992-11-01T23:59:59.000Z

    Sedimentary sequences from glacial lakes in southern Norway provide a new approach to the reconstruction of a relatively complete record of Holocene glacier and climatic variations. The data show that, following the [open quotes]Climatic Optimum[close quotes] of the early Holocene, neoglaciation was asynchronous: glaciers formed at different times at different sites, depending on critical altitudinal thresholds in relation to the scale of climatic variations. Neoglaciation began as early as ca. 6400 yr B.P. at Gjuvvatnet, ca. 3400 yr B.P. at Midtivatnet, and later than ca. 1000 yr B.P. at Storevatnet. These differences in glacierization provide a key to reconstructing the fluctuating decline in mean summer temperature (relative to the present) from at least +1 [degrees]C during the mid-Holocene to below -2 [degrees]C in the [open quotes]Little Ice Age[close quotes]. 34 refs., 4 figs.

  5. Clay fabric intensity in natural and artificial fault gouges: Implications for brittle fault zone processes and sedimentary

    E-Print Network [OSTI]

    Clay fabric intensity in natural and artificial fault gouges: Implications for brittle fault zone processes and sedimentary basin clay fabric evolution Samuel H. Haines,1 Ben A. van der Pluijm,1 Matt J intensity measurements using X-ray texture goniometry on 22 natural clay-rich fault gouges from low

  6. Architecture of the Middle Devonian Kvamshesten Group, western Norway: sedimentary response to deformation above a ramp-flat

    E-Print Network [OSTI]

    Andersen, Torgeir Bjørge

    Architecture of the Middle Devonian Kvamshesten Group, western Norway: sedimentary response. ANDERSEN 1 1Department of Geology, University of Oslo, Pb 1047 Blindern, 0316 Oslo, Norway 2present address." Geological Survey of Norway, 7491 Trondheim, Norway Abstract: The Mid-Devonian Kvamshesten basin in western

  7. PROPOSAL TITLE Evolution of Rift and Rifted Margin Sedimentary Basins: Numerical Investigation of Tectonics, Sedimentation, and Salt-

    E-Print Network [OSTI]

    Beaumont, Christopher

    of Tectonics, Sedimentation, and Salt- Related Structures of the Atlantic Canada Margin and Elsewhere will focus on: crustal deformation during rifting and rift reactivation; salt tectonics induced by thin of salt and the development of finite amplitude salt structures. 3) The role of differential sedimentary

  8. Interpreting multicomponent seismic data in the Gulf of Mexico for shallow sedimentary properties: methodology and case history

    E-Print Network [OSTI]

    Texas at Austin, University of

    OTC 15118 Interpreting multicomponent seismic data in the Gulf of Mexico for shallow sedimentary of multicomponent data analysis for the detection of gas hydrate prospects in the northern Gulf of Mexico. Methane and pressure conditions in the region. In many regions of North America, including the southern Gulf of Mexico

  9. Degradation versus self-assembly of block copolymer micelles

    E-Print Network [OSTI]

    Alexander Muratov; Vladimir A. Baulin

    2012-02-10T23:59:59.000Z

    The stability of micelles self-assembled from block copolymers can be altered by the degradation of the blocks. Slow degradation shifts the equilibrium size distribution of block copolymer micelles and change their properties. Quasi-equilibrium scaling theory shows that the degradation of hydrophobic blocks in the core of micelles destabilize the micelles reducing their size, while the degradation of hydrophilic blocks forming coronas of micelles favors larger micelles and may, at certain conditions, induce the formation of micelles from individual chains.

  10. Self-doped microphase separated block copolymer electrolyte

    DOE Patents [OSTI]

    Mayes, Anne M. (Waltham, MA); Sadoway, Donald R. (Waltham, MA); Banerjee, Pallab (Boston, MA); Soo, Philip (Cambridge, MA); Huang, Biying (Cambridge, MA)

    2002-01-01T23:59:59.000Z

    A polymer electrolyte includes a self-doped microphase separated block copolymer including at least one ionically conductive block and at least one second block that is immiscible in the ionically conductive block, an anion immobilized on the polymer electrolyte and a cationic species. The ionically conductive block provides a continuous ionically conductive pathway through the electrolyte. The electrolyte may be used as an electrolyte in an electrochemical cell.

  11. One (Block) Size Fits All: PIR and SPIR with Variable-Length Records via Multi-Block Queries

    E-Print Network [OSTI]

    Goldberg, Ian

    One (Block) Size Fits All: PIR and SPIR with Variable-Length Records via Multi-Block Queries Ryan-theoretic private information retrieval (IT-PIR) scheme. Our new multi-block IT-PIR trades off some Byzantine costs within a small factor of the lowest possible. With our new multi-block IT-PIR protocol

  12. Working Paper Series Semantic building blocks

    E-Print Network [OSTI]

    Fernandez, Thomas

    . These results then suggest several new, theo- retically grounded, research areas. 1 Introduction SubtreeWorking Paper Series Semantic building blocks in genetic programming Nicholas Freitag Mc and Teaching Rodney A. Briggs Library Volume 3 Number 2 December 12, 2007 Faculty and Student Research

  13. Compliant layer chucking surface

    DOE Patents [OSTI]

    Blaedel, Kenneth L. (Dublin, CA); Spence, Paul A. (Pleasanton, CA); Thompson, Samuel L. (Pleasanton, CA)

    2004-12-28T23:59:59.000Z

    A method and apparatus are described wherein a thin layer of complaint material is deposited on the surface of a chuck to mitigate the deformation that an entrapped particle might cause in the part, such as a mask or a wafer, that is clamped to the chuck. The harder particle will embed into the softer layer as the clamping pressure is applied. The material composing the thin layer could be a metal or a polymer for vacuum or electrostatic chucks. It may be deposited in various patterns to affect an interrupted surface, such as that of a "pin" chuck, thereby reducing the probability of entrapping a particle.

  14. Layered Spinach Salad Ingredients

    E-Print Network [OSTI]

    Liskiewicz, Maciej

    cucumbers 2 tomatoes 1/2 cup low-fat mayonnaise 1/2 cup parmesan cheese, grated 1/4 cup milk 1 1/2 teaspoons size pieces, layer on bottom of a large bowl. 2. Rinse mushrooms off under cool water and use a soft half. Layer on top of vegetables. 6. To make salad dressing, add mayonnaise, cheese, milk, dill weed

  15. Structured luminescence conversion layer

    DOE Patents [OSTI]

    Berben, Dirk; Antoniadis, Homer; Jermann, Frank; Krummacher, Benjamin Claus; Von Malm, Norwin; Zachau, Martin

    2012-12-11T23:59:59.000Z

    An apparatus device such as a light source is disclosed which has an OLED device and a structured luminescence conversion layer deposited on the substrate or transparent electrode of said OLED device and on the exterior of said OLED device. The structured luminescence conversion layer contains regions such as color-changing and non-color-changing regions with particular shapes arranged in a particular pattern.

  16. Deformation behavior of cylindrical block copolymer bicrystals : pathway to understanding block copolymer grain boundaries

    E-Print Network [OSTI]

    Wanakamol, Panitarn

    2006-01-01T23:59:59.000Z

    Model bicrystals made by adhering pieces of near-single-crystal styrene-isoprene-styrene (SIS) cylindrical block copolymer (BCP), produced by a roll-casting process; yield various types of pure tilt grain boundaries. The ...

  17. Stable isotope variations in Late Pennsylvanian brachiopods from cyclic sedimentary deposits: paleoenvironmental and diagenetic implications

    E-Print Network [OSTI]

    Adlis, David Scott

    1986-01-01T23:59:59.000Z

    and 3. 6'/w, respectively. This combination of lighter isotopic values and higher concentrations of iron and manganese suggest meteoric diagenetic alteration of the prismatic shell layer, whereas the interior of the fibrous layer is judged... to calcite recrystallization, results in a change in texture, often on a very fine scale. Bulk composition does not change, but trace element concentration and isotopic ratios of the recrystallized calcite may be quite different. The large orthorhombic...

  18. Modeling Message Blocking and Deadlock in Interconnection Networks

    E-Print Network [OSTI]

    Pinkston, Timothy M.

    Modeling Message Blocking and Deadlock in Interconnection Networks Sugath Warnakulasuriya. This model allows various types of message blocking to be represented precisely, including deadlock. Our model of deadlock distinguishes between messages involved in deadlock and those simply dependent

  19. Display blocks : cubic displays for multi-perspective visualizations

    E-Print Network [OSTI]

    Pla i Conesa, Pol

    2012-01-01T23:59:59.000Z

    This thesis details the design, execution and evaluation of a new type of display technology, known as Display Blocks. Display Blocks are a response to two major limitations of current displays: visualization and interaction. ...

  20. Variations in the manufacturing of Rockwell test blocks

    E-Print Network [OSTI]

    Vora, Jairaj Deepak

    2009-01-01T23:59:59.000Z

    This research analyzes the variations occurring in the manufacturing of Rockwell hardness test blocks. Test blocks of different materials and hardness were analyzed and the variations were identified using the Ishikawa ...

  1. FREE ROCKING OF PRISMATIC BLOCKS By P. R. Lipscombe1

    E-Print Network [OSTI]

    Pellegrino, Sergio

    FREE ROCKING OF PRISMATIC BLOCKS By P. R. Lipscombe1 and S. Pellegrino2 ABSTRACT: This paper. This cycle comes to an end when the block becomes vertical and starts to rotate again about A. Because some

  2. ENERGY EFFICIENCY AND CONSERVATION BLOCK GRANTS PROGRAM NOTICE...

    Energy Savers [EERE]

    ENERGY EFFICIENCY AND CONSERVATION BLOCK GRANTS PROGRAM NOTICE 10-012 ENERGY EFFICIENCY AND CONSERVATION BLOCK GRANTS PROGRAM NOTICE 10-012 DAVIS-BACON ACT WAGE RATES FOR...

  3. ENERGY EFFICIENCY AND CONSERVATION BLOCK GRANT PROGRAM NOTICE...

    Energy Savers [EERE]

    ENERGY EFFICIENCY AND CONSERVATION BLOCK GRANT PROGRAM NOTICE 10-004A ENERGY EFFICIENCY AND CONSERVATION BLOCK GRANT PROGRAM NOTICE 10-004A REVISION: THIS GUIDANCE HAS BEEN AMENDED...

  4. Advanced Horizontal Well Recirculation Systems for Geothermal Energy Recovery in Sedimentary Formations

    SciTech Connect (OSTI)

    Mike Bruno; Russell L. Detwiler; Kang Lao; Vahid Serajian; Jean Elkhoury; Julia Diessl; Nicky White

    2012-09-30T23:59:59.000Z

    There is increased recognition that geothermal energy resources are more widespread than previously thought, with potential for providing a significant amount of sustainable clean energy worldwide. Recent advances in drilling, completion, and production technology from the oil and gas industry can now be applied to unlock vast new geothermal resources, with some estimates for potential electricity generation from geothermal energy now on the order of 2 million megawatts. Terralog USA, in collaboration with the University of California, Irvine (UCI), are currently investigating advanced design concepts for paired horizontal well recirculation systems, optimally configured for geothermal energy recovery in permeable sedimentary and crystalline formations of varying structure and material properties. This two-year research project, funded by the US Department of Energy, includes combined efforts for: 1) Resource characterization; 2) Small and large scale laboratory investigations; 3) Numerical simulation at both the laboratory and field scale; and 4) Engineering feasibility studies and economic evaluations. The research project is currently in its early stages. This paper summarizes our technical approach and preliminary findings related to potential resources, small-scale laboratory simulation, and supporting numerical simulation efforts.

  5. Evaluation of Five Sedimentary Rocks Other Than Salt for Geologic Repository Siting Purposes

    SciTech Connect (OSTI)

    Croff, A.G.; Lomenick, T.F.; Lowrie, R.S.; Stow, S.H.

    2003-11-15T23:59:59.000Z

    The US Department of Energy (DOE), in order to increase the diversity of rock types under consideration by the geologic disposal program, initiated the Sedimary ROck Program (SERP), whose immediate objectiv eis to evaluate five types of secimdnary rock - sandstone, chalk, carbonate rocks (limestone and dolostone), anhydrock, and shale - to determine the potential for siting a geologic repository. The evaluation of these five rock types, together with the ongoing salt studies, effectively results in the consideration of all types of relatively impermeable sedimentary rock for repository purposes. The results of this evaluation are expressed in terms of a ranking of the five rock types with respect to their potential to serve as a geologic repository host rock. This comparative evaluation was conducted on a non-site-specific basis, by use of generic information together with rock evaluation criteria (RECs) derived from the DOE siting guidelines for geologic repositories (CFR 1984). An information base relevant to rock evaluation using these RECs was developed in hydrology, geochemistry, rock characteristics (rock occurrences, thermal response, rock mechanics), natural resources, and rock dissolution. Evaluation against postclosure and preclosure RECs yielded a ranking of the five subject rocks with respect to their potential as repository host rocks. Shale was determined to be the most preferred of the five rock types, with sandstone a distant second, the carbonate rocks and anhydrock a more distant third, and chalk a relatively close fourth.

  6. Energy Efficiency and Conservation Block Grant Program Success Stories

    Broader source: Energy.gov [DOE]

    Energy Efficiency and Conservation Block Grant (EECBG) Program's success stories including news articles, EERE Successes and EERE Blog entries.

  7. COMPOSITION VARIATION OF ILLITE-VERMICULITE-SMECTITE MIXED-LAYER MINERALS IN A BENTONITE BED

    E-Print Network [OSTI]

    Boyer, Edmond

    & Brusewitz, 1978; Hoffman & Hower, 1979; Huff & Türkmenoglu, 1981; Altaner et al., 1984). These sedimentary

  8. Layered semiconductor neutron detectors

    DOE Patents [OSTI]

    Mao, Samuel S; Perry, Dale L

    2013-12-10T23:59:59.000Z

    Room temperature operating solid state hand held neutron detectors integrate one or more relatively thin layers of a high neutron interaction cross-section element or materials with semiconductor detectors. The high neutron interaction cross-section element (e.g., Gd, B or Li) or materials comprising at least one high neutron interaction cross-section element can be in the form of unstructured layers or micro- or nano-structured arrays. Such architecture provides high efficiency neutron detector devices by capturing substantially more carriers produced from high energy .alpha.-particles or .gamma.-photons generated by neutron interaction.

  9. Sedimentary processes of the Red River between Denison Dam, TX and Alexandria, LA

    E-Print Network [OSTI]

    Weirich, Thomas Moody - Kenyon

    1990-01-01T23:59:59.000Z

    Figure 1. Location map of study area along the Red River. . . . . . . . . . . . . 2 Figure 2. Location map of reach blocked by the natural raft. . . . . . . . . 12 Figure 3. Suspended sediment concentration and volumetric flow diagram. Figure 4... and sinuosity values between Temple, AR and Alexandria, LA. Table 3. Sinuosity values of the Red River course 1892, 1938, 1983. . 62 Table 4. Sieve analysis of alluvial flood plain samples. . . . . . . . . . . . . . . 76 INTRODUCTION The Red River...

  10. Three Pile Nim with Move Blocking Arthur Holshouser

    E-Print Network [OSTI]

    Reiter, Harold

    Three Pile Nim with Move Blocking Arthur Holshouser 3600 Bullard St. Charlotte, NC, USA Harold hbreiter@email.uncc.edu 1 #12;Three Pile Nim with Blocking Nim, also known as Bouton's Nim, is a two player for ordinary nim. Specifically, we explore a three pile game with two players, a moving player and a blocking

  11. Conflicts between optimality criteria for block designs with low replication

    E-Print Network [OSTI]

    Bailey, R. A.

    .a.bailey@qmul.ac.uk Ongoing joint work with Alia Sajjad and Peter Cameron 1/32 #12;What makes a block design goodConflicts between optimality criteria for block designs with low replication R. A. Bailey r for experiments? I have v treatments that I want to compare. I have b blocks, with space for k treatments (not

  12. Joint Traffic Blocking and Routing under Network Failures and Maintenances

    E-Print Network [OSTI]

    Liu, Yong

    Joint Traffic Blocking and Routing under Network Failures and Maintenances Chao Liang ECE Dept paths. Therefore, it is important to design ingress traffic blocking and routing jointly to achieve a good balance between the two factors. Working towards this goal, we formulate a joint ingress blocking

  13. Asymptotically minimum BER linear block precoders for MMSE equalisation

    E-Print Network [OSTI]

    Davidson, Tim

    ) [3]. For a general block transmission scheme, optimal detection requires a joint decisionAsymptotically minimum BER linear block precoders for MMSE equalisation S.S. Chan, T.N. Davidson and K.M. Wong Abstract: An asymptotically minimum bit error rate (BER) linear block precoder

  14. Department of Electrical Engineering Spring 2011 Glass Block Solar Collector

    E-Print Network [OSTI]

    Demirel, Melik C.

    PENNSTATE Department of Electrical Engineering Spring 2011 Glass Block Solar Collector Overview of the team to incorporate solar collectors into glass blocks and provide an application for the collected energy. Objectives The team's objective was to deliver a working glass block solar collector

  15. Applications of balanced incomplete block designs to organoleptic evaluations

    E-Print Network [OSTI]

    Lawhon, James Talmage

    1971-01-01T23:59:59.000Z

    is expected to result in a greater degree of standardizat1on in the field. ACKNOWLEDGEMENTS My gratitude is expressed to Dr. Charles E. Gates for his able guidance and for making his time available on numerous occasions to provide it. I would like also... FOR NINE TREATMENTS IN BLOCKS OF THREE UNITS Replication I Replication II Blocks Treatments Blocks Treatments 1-2-3 4-5-6 7-8-9 1-4-7 2-5-8 3-6-9 Replication III Replication IV Blocks Treatments Blocks Treatments 1-5-9 4-8-3 7-6-2 10 11 12...

  16. Help:Blocking users | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual Siteof Energy 2,AUDIT REPORTEnergyFarms AHefei Sungrow Power Supply CoAssigningBlocking

  17. Block Island Power Co | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty EditCalifornia: EnergyAvignon,Belcher HomesLyonsBirchBlock Island Power Co Jump to:

  18. Block Island Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty EditCalifornia: EnergyAvignon,Belcher HomesLyonsBirchBlock Island Power Co Jump

  19. Active Management of Integrated Geothermal-CO2 Storage Reservoirs in Sedimentary Formations

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Buscheck, Thomas A.

    The purpose of phase 1 is to determine the feasibility of integrating geologic CO2 storage (GCS) with geothermal energy production. Phase 1 includes reservoir analyses to determine injector/producer well schemes that balance the generation of economically useful flow rates at the producers with the need to manage reservoir overpressure to reduce the risks associated with overpressure, such as induced seismicity and CO2 leakage to overlying aquifers. Based on a range of well schemes, techno-economic analyses of the levelized cost of electricity (LCOE) are conducted to determine the economic benefits of integrating GCS with geothermal energy production. In addition to considering CO2 injection, reservoir analyses are conducted for nitrogen (N2) injection to investigate the potential benefits of incorporating N2 injection with integrated geothermal-GCS, as well as the use of N2 injection as a potential pressure-support and working-fluid option. Phase 1 includes preliminary environmental risk assessments of integrated geothermal-GCS, with the focus on managing reservoir overpressure. Phase 1 also includes an economic survey of pipeline costs, which will be applied in Phase 2 to the analysis of CO2 conveyance costs for techno-economics analyses of integrated geothermal-GCS reservoir sites. Phase 1 also includes a geospatial GIS survey of potential integrated geothermal-GCS reservoir sites, which will be used in Phase 2 to conduct sweet-spot analyses that determine where promising geothermal resources are co-located in sedimentary settings conducive to safe CO2 storage, as well as being in adequate proximity to large stationary CO2 sources.

  20. Sedimentary tectonic patterns associated with Middle Devonian Tioga and Kawkawlin Tuffs in Northeastern United States

    SciTech Connect (OSTI)

    Dennison, J.M.; Textoris, D.A.

    1988-01-01T23:59:59.000Z

    A pair of lithofacies maps of northeastern United States within 2 m below and above the the Tioga Ash middle coarse zone in the Appalachian and Illinois basins and the equivalent Kawkawlin Bentonite in the Michigan basin reveals a pronounced sea level rise about 0.3 m stratigraphically beneath the Tioga middle coarse zone. Removing effects of the rise yields a facies residual indicating these sedimentary tectonic patterns during the volcanic eruption: (1) Tioga volcanic source present near Fredericksburg, Virginia, on the 38th Parallel zone of the North American plate, now hidden beneath the Blue Ridge crystalline overthrust, (2) the Acadian orogeny beginning with rise of low-grade metamorphic terrane near the volcanic center, (3) Browns Mountain growth anticline extending southward across present Valley and Ridge outcrops, (4) east-northeast-trending hinge line controlling Onondaga pinncacle reefs in New York and Pennsylvania, (5) western Rome trough boundary in northwestern West Virginia subsiding to the east, (6) tectonically negative Rome trough in eastern Kentucky, (7) Waverly arch reactivating in southern Ohio, (8) Marcellus Shale initially prograding from a source near Fredericksburg, Virginia (only later did New England Acadian uplift become the dominant source of siliciclastics reaching New York), (9) dolomite flat of Indiana and Illinois receiving normal marine wafers from the south, (10) restriction of Tioga to southeastern Illinois basin, suggesting only that part of the basin was tectonically negative, and (11) apparent absence of Kawkawlin tuff in extreme eastern Michigan basin, suggesting a margin emergent as sabkha dolomite and evaporites, with more normal marine waters entering across the downwarped Chatham Sag.

  1. Layer-by-layer assembly in confined geometries

    E-Print Network [OSTI]

    DeRocher, Jonathan P

    2011-01-01T23:59:59.000Z

    The fundamental nature of layer-by-layer (LbL) assembly in confined geometries was investigated for a number of different chemical systems. The first part of this thesis concerns the modification of microfluidic and ...

  2. Ion transport and structure of layer-by-layer assemblies

    E-Print Network [OSTI]

    Lutkenhaus, Jodie Lee

    2007-01-01T23:59:59.000Z

    Layer-by-layer (LbL) films of various architectures were examined as potential solid state electrolytes for electrochemical systems (e.g. batteries and fuel cells). The relationship between materials properties and ion ...

  3. Thermal Transitions in Layer-By-Layer Assemblies

    E-Print Network [OSTI]

    Sung, Choonghyun

    2014-10-13T23:59:59.000Z

    Thermal transitions in layer-by-layer (LbL) assemblies were investigated under dry and hydrated conditions. In the dry state, the effects of film thickness and the film deposition method on the glass transition temperature (Tg) were studied...

  4. Engineering electroresponsive layer-by-layer thin films

    E-Print Network [OSTI]

    Schmidt, Daniel J., Ph. D. Massachusetts Institute of Technology

    2011-01-01T23:59:59.000Z

    Electroresponsive layer-by-layer (LbL) polymer films and polymer nanocomposite films were investigated as model systems for electrically triggered drug delivery applications and "mechanomutable" surface coating applications. ...

  5. Ambient noise energy bursts observation and modeling: trapping of harmonic structure-soil induced-waves in a topmost sedimentary layer

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    of an industrial chimney. In-situ measurements of the chimney dynamic characteristics show a coincidence between is then numerically simulated using simple impedance models, and two geotechnical profiles. Simulations exhibit., 2002). Bouguer anomaly analysis of gravity measurements at more than 400 points (Vallon, personal

  6. A block-based scalable motion model for highly scalable video coding

    E-Print Network [OSTI]

    Kao, Meng-Ping

    2008-01-01T23:59:59.000Z

    2006. [45] J. Lee. Joint optimization of block size andjoint optimization on both MV accuracy and variable block

  7. GRADUATE STUDENT COURSE ASSIGNMENTS Block 0 Analysis ---Fefferman Week 1

    E-Print Network [OSTI]

    May, J. Peter

    Lewicka Weeks 1­8 Block 5 Apprentice Program --- Abert Babai May Weeks 1*­4 Week 1 Week 2 Week 3 Week 4­8) Bremer (7­8), Carstea, Gurski, Morris, Rule Block 5 (Apprentice) (weeks 1­4, possibly 5­8) Abouzaid and by mentoring group Name Block Weeks Mentoring Mohammed Abouzaid 5 4 weeks (first 4) Apprentice David Balduzzi 2

  8. Metal deposition using seed layers

    DOE Patents [OSTI]

    Feng, Hsein-Ping; Chen, Gang; Bo, Yu; Ren, Zhifeng; Chen, Shuo; Poudel, Bed

    2013-11-12T23:59:59.000Z

    Methods of forming a conductive metal layers on substrates are disclosed which employ a seed layer to enhance bonding, especially to smooth, low-roughness or hydrophobic substrates. In one aspect of the invention, the seed layer can be formed by applying nanoparticles onto a surface of the substrate; and the metallization is achieved by electroplating an electrically conducting metal onto the seed layer, whereby the nanoparticles serve as nucleation sites for metal deposition. In another approach, the seed layer can be formed by a self-assembling linker material, such as a sulfur-containing silane material.

  9. Buried oxide layer in silicon

    DOE Patents [OSTI]

    Sadana, Devendra Kumar (Pleasantville, NY); Holland, Orin Wayne (Lenoir, TN)

    2001-01-01T23:59:59.000Z

    A process for forming Silicon-On-Insulator is described incorporating the steps of ion implantation of oxygen into a silicon substrate at elevated temperature, ion implanting oxygen at a temperature below 200.degree. C. at a lower dose to form an amorphous silicon layer, and annealing steps to form a mixture of defective single crystal silicon and polycrystalline silicon or polycrystalline silicon alone and then silicon oxide from the amorphous silicon layer to form a continuous silicon oxide layer below the surface of the silicon substrate to provide an isolated superficial layer of silicon. The invention overcomes the problem of buried isolated islands of silicon oxide forming a discontinuous buried oxide layer.

  10. Horner’s Syndrome after Superficial Cervical Plexus Block

    E-Print Network [OSTI]

    Flores, MD, Stefan; Riguzzi, MD, Christine; Herring, MD, Andrew A.; Nagdev, MD, Arun

    2015-01-01T23:59:59.000Z

    cervical plexus block for anesthesia and analgesia ininvasive parathyroidectomy. Anesthesia and Analgesia. 2007;complication of regional anesthesia in neck region such as

  11. Guidance for Energy Efficiency and Conservation Block Grant Grantees...

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

    Grant Grantees on Qualified Energy Conservation Bonds and New Clean Renewable Energy Bonds Guidance for Energy Efficiency and Conservation Block Grant Grantees on Qualified Energy...

  12. Efficient Block-coordinate Descent Algorithms for the Group Lasso

    E-Print Network [OSTI]

    Zhiwei (Tony) Qin

    2010-11-10T23:59:59.000Z

    Nov 10, 2010 ... First, we propose a general version of the Block Coordinate Descent (BCD) algorithm for the Group Lasso that employs an efficient approach ...

  13. GUIDANCE FOR ENERGY EFFICIENCY AND CONSERVATION BLOCK GRANT RECIPIENTS...

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

    This document provides guidance for energy efficiency and block grant recipients on closeout procedures for non-state energy office recipients. eecbgcloseoutguidance10-11-11.pdf...

  14. Guidance for Energy Efficiency and Conservation Block Grant Program...

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

    Efficiency and Conservation Block Grant (EECBG) Program Guidance 10-011 dealing with formula grants. eecbgrecoveryactprogramguidance10-011.pdf More Documents & Publications...

  15. A Block Coordinate Variable Metric Forward-Backward Algorithm

    E-Print Network [OSTI]

    2014-04-05T23:59:59.000Z

    A standard approach for solving (1) in this context consists of using a Block ...... H.H., Combettes, P.L., Noll, D.: Joint minimization with alternating Bregman.

  16. atrioventricular block induced: Topics by E-print Network

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

    Semiconductor) ) (Complimentary MOS block A B Die 12; 3 12;VLSI LSI MSI SSI TTL (Transistor, Transistor Logic) ECL (Emitter Kavousianos, Xrysovalantis 144...

  17. armour blocks part: Topics by E-print Network

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

    Semiconductor) ) (Complimentary MOS block A B Die 12; 3 12;VLSI LSI MSI SSI TTL (Transistor, Transistor Logic) ECL (Emitter Kavousianos, Xrysovalantis 128...

  18. acid block copolymer: Topics by E-print Network

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

    H. Cheng, M. Olvera de la Cruz, "Hydrophobic-Charged Block Copolymer Micelles Induced by Materials Science Websites Summary: surface. The electrostatic attraction between the...

  19. Proton Channel Orientation in Block-Copolymer Electrolyte Membranes

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

    Proton Channel Orientation in Block-Copolymer Electrolyte Membranes Print Fuel cells have the potential to provide power for a wide variety of applications ranging from electronic...

  20. Equity Effects of Increasing-Block Electricity Pricing

    E-Print Network [OSTI]

    Borenstein, Severin

    2008-01-01T23:59:59.000Z

    Evidence from Residential Electricity Demand,” Review ofLester D. “The Demand for Electricity: A Survey,” The BellResidential Demand for Electricity under Inverted Block

  1. Microsoft Word - DSI Block 12_05_08.doc

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

    DIALOGUE IP BLOCK SALE TEMPLATE 120508 POWER SALES AGREEMENT executed by the BONNEVILLE POWER ADMINISTRATION and FULL NAME OF CUSTOMER Table of Contents Section Page 1. Term...

  2. BLOCK DIAGONALLY DOMINANT POSITIVE DEFINITE APPROXIMATE FILTERS AND SMOOTHERS

    E-Print Network [OSTI]

    BLOCK DIAGONALLY DOMINANT POSITIVE DEFINITE APPROXIMATE FILTERS AND SMOOTHERS Running title: BLOCKÆciently small as to preclude the loss of positive de#12;niteness in the approximate equations. Therefore

  3. Energy Efficiency and Conservation Block Grant Financing Program...

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

    of Energy's ongoing role in the monitoring, reporting, and oversight of Energy Efficiency and Conservation Block Grant-funded financing programs, including Revolving Loan...

  4. Net Requirements Transparency Process for Slice/Block Customers

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

    4, 2012 Net Requirements Transparency Process for SliceBlock Customers Description of Changes and a Response to Comments September 24, 2012 Background and Description of Changes:...

  5. Optimization Online - Stochastic Quasi-Fejér Block-Coordinate Fixed ...

    E-Print Network [OSTI]

    Patrick L. Combettes

    2014-04-29T23:59:59.000Z

    Apr 29, 2014 ... Stochastic Quasi-Fejér Block-Coordinate Fixed Point Iterations with Random Sweeping. Patrick L. Combettes (plc ***at*** math.jussieu.fr)

  6. Coordination polymers and building blocks based on ditopic heteroscorpionate ligands

    E-Print Network [OSTI]

    Santillan, Guillermo A.

    2009-01-01T23:59:59.000Z

    of Silver (I) Coordination Polymers formed through hydrogenBlocks for Coordination Polymers” Inorg. Chem. *One of theof Silver(I) Coordination Polymers Formed through Hydrogen

  7. Guidance for Energy Efficiency and Conservation Block Grant Recipients...

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

    Guidelines Guidance for Energy Efficiency and Conservation Block Grant Program grantees on planning and conducting program evaluations on Recovery Act funded EECBG programs...

  8. Microsoft Word - BPA analysis summarizing CFAC block contract...

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

    Agreement (Block Contract) to Columbia Falls Aluminum Company (CFAC), an aluminum smelter in Columbia Falls, Montana, at the Industrial Power (IP) rate and how it comports...

  9. Blocked Regular Fractional Factorial Designs With Minimum Aberration

    E-Print Network [OSTI]

    Hongquan Xu

    2011-01-01T23:59:59.000Z

    on 2 n?k fractional factorial designs and search for minimumaberration frac- tional factorial designs. Biometrika 90aberration in blocked factorial designs. Technometrics 39

  10. Blocked Regular Fractional Factorial Designs With Minimum Aberration

    E-Print Network [OSTI]

    Xu, Hongquan

    2005-01-01T23:59:59.000Z

    on 2 n?k fractional factorial designs and search for minimumaberration frac- tional factorial designs. Biometrika 90aberration in blocked factorial designs. Technometrics 39

  11. Poly(lactide)-block-poly([epsilon]-caprolactone-co-[epsilon]-decalactone)-block-poly(lactide) copolymer elastomers

    SciTech Connect (OSTI)

    Schneiderman, Deborah K.; Hill, Erin M.; Martello, Mark T.; Hillmyer, Marc A. (UMM)

    2015-01-01T23:59:59.000Z

    Batch ring opening transesterification copolymerization of ?-caprolactone and ?-decalactone was used to generate statistical copolymers over a wide range of compositions and molar masses. Reactivity ratios determined for this monomer pair, rCL = 5.9 and rDL = 0.03, reveal ?-caprolactone is added preferentially regardless of the propagating chain end. Relative to poly(?-caprolactone) the crystallinity and melting point of these statistical copolymers were depressed by the addition of ?-decalactone; copolymers containing greater than 31 mol% (46 wt%) ?-decalactone were amorphous. Poly(lactide)-block-poly(?-caprolactone-co-?-decalactone)-block-poly(lactide) triblock polymers were also prepared and used to explore the influence of midblock composition on the temperature dependent Flory-Huggins interaction parameter (?). In addition, uniaxial extension tests were used to determine the effects of midblock composition, poly(lactide) content, and molar mass on the mechanical properties of these new elastomeric triblocks.

  12. BLIND RECOGNITION OF LINEAR SPACE TIME BLOCK CODES Vincent Choqueuse

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    BLIND RECOGNITION OF LINEAR SPACE TIME BLOCK CODES Vincent Choqueuse E3 I2 , EA 3876, ENSIETA 2 6165, UBO 6, avenue le Gorgeu, 29200 Brest Cedex 3 FRANCE ABSTRACT The blind recognition. In this paper, we investigate the problem of the blind recognition of Linear Space-Time Block Codes (STBC

  13. INVENTORY FOR ELGAR COURT FLAT NO. BLOCK NO. ROOM NO.

    E-Print Network [OSTI]

    Birmingham, University of

    INVENTORY FOR ELGAR COURT FLAT NO. BLOCK NO. ROOM NO. Staff on the Vale Village try to ensure and cleaned to a high standard. Please make sure that you complete this inventory and note down anything which seat x 1 Toilet roll holder x 1 INVENTORY FOR SHACKLETON FLAT NO: BLOCK NO: ROOM NO: NAME: TELEPHONE

  14. INVENTORY FOR ELGAR COURT FLAT NO. BLOCK NO. ROOM NO.

    E-Print Network [OSTI]

    Birmingham, University of

    INVENTORY FOR ELGAR COURT FLAT NO. BLOCK NO. ROOM NO. Staff on the Vale Village try to ensure and cleaned to a high standard. Please make sure that you complete this inventory and note down anything which Toilet seat x 1 Toilet roll holder x 1 INVENTORY FOR MASON FLAT NO: BLOCK NO: ROOM NO: NAME: TELEPHONE

  15. INVENTORY FOR ELGAR COURT FLAT NO. BLOCK NO. ROOM NO.

    E-Print Network [OSTI]

    Birmingham, University of

    INVENTORY FOR ELGAR COURT FLAT NO. BLOCK NO. ROOM NO. Staff on the Vale Village try to ensure and cleaned to a high standard. Please make sure that you complete this inventory and note down anything which holder x 1 INVENTORY FOR TENNIS COURT BLOCK NO: FLAT NO: ROOM NO: NAME: TELEPHONE EXT. NO: #12;How

  16. INVENTORY FOR ELGAR COURT FLAT NO. BLOCK NO. ROOM NO.

    E-Print Network [OSTI]

    Birmingham, University of

    INVENTORY FOR ELGAR COURT FLAT NO. BLOCK NO. ROOM NO. Staff on the Vale Village try to ensure and cleaned to a high standard. Please make sure that you complete this inventory and note down anything which Toilet seat x 1 Toilet roll holder x 1 INVENTORY FOR ELGAR COURT FLAT NO: BLOCK NO: ROOM NO: NAME

  17. INVENTORY FOR ELGAR COURT FLAT NO. BLOCK NO. ROOM NO.

    E-Print Network [OSTI]

    Birmingham, University of

    INVENTORY FOR ELGAR COURT FLAT NO. BLOCK NO. ROOM NO. Staff on the Vale Village try to ensure and cleaned to a high standard. Please make sure that you complete this inventory and note down anything which rail x 1 INVENTORY FOR MAPLE BANK FLAT NO: BLOCK NO: ROOM NO: NAME: TELEPHONE EXT. NO: #12;How

  18. Conflicts between optimality criteria for block designs with low replication

    E-Print Network [OSTI]

    Bailey, R. A.

    Conflicts between optimality criteria for block designs with low replication R. A. Bailey r.a.bailey@qmul.ac.uk International Biometric Congress, Florianopolis, 2010 Ongoing joint work with Alia Sajjad and Peter Cameron 1/18 #12;What makes a block design good for experiments? I have v treatments that I want to compare. I have

  19. Estimation and prediction in spatial models with block composite likelihoods

    E-Print Network [OSTI]

    Reich, Brian J.

    Estimation and prediction in spatial models with block composite likelihoods Jo Eidsvik1 , Benjamin, IA 50011, U.S.A. (niemi@iastate.edu) 1 #12;Abstract A block composite likelihood is developed for estimation and prediction in large spatial datasets. The composite likelihood is constructed from the joint

  20. Block-LDPC: A Practical LDPC Coding System Design Approach

    E-Print Network [OSTI]

    Zhang, Tong

    1 Block-LDPC: A Practical LDPC Coding System Design Approach Hao Zhong, Student Member, IEEE, and Tong Zhang, Member, IEEE Abstract-- This paper presents a joint low-density parity-check (LDPC) code-encoder-decoder design approach, called Block- LDPC, for practical LDPC coding system implementations. The key idea

  1. New block preconditioners for saddle point problems List of authors

    E-Print Network [OSTI]

    Boyer, Edmond

    New block preconditioners for saddle point problems List of authors: Michele Benzi 1 In this talk I will describe a class of block preconditioners for linear systems in saddle point form. The main focus with respect to problem parameters will be discussed, together with the effect of inexact solves. This is joint

  2. Experimenting with Shu le Block Cipher and SMT Martin Stanek

    E-Print Network [OSTI]

    Experimenting with Shu le Block Cipher and SMT Solvers Martin Stanek Department of Computer Science, and we call it the Shu e Block Cipher. We show how the cipher can be translated into SMT-LIB v2 format, suitable for automated solving by SMT solvers. We compare performance of various SMT solvers

  3. Piezoelectric Properties of Non-Polar Block Copolymers

    SciTech Connect (OSTI)

    Pester, Christian [RWTH Aachen University; Ruppel, Markus A [ORNL; Schoberth, Heiko [University of Bayreuth; Schmidt, K. [Universitat Bayreuth; Liedel, Clemens [RWTH Aachen University; Van Rijn, Patrick [RWTH Aachen University; Littrell, Ken [ORNL; Schindler, Kerstin [RWTH Aachen University; Hiltl, Stephanie [RWTH Aachen University; Czubak, Thomas [RWTH Aachen University; Mays, Jimmy [ORNL; Urban, Volker S [ORNL; Boker, Alexander [RWTH Aachen University

    2011-01-01T23:59:59.000Z

    Piezoelectric properties in non-polar block copolymers are a novelty in the field of electroactive polymers. The piezoelectric susceptibility of poly(styrene-b-isoprene) block copolymer lamellae is found to be up to an order of magnitude higher when compared to classic piezoelectric materials. The electroactive response increases with temperature and is found to be strongest in the disordered phase.

  4. Artificial Neural Networks Single Layer Networks Multi Layer Networks Generalization Artificial Neural Networks

    E-Print Network [OSTI]

    Kjellström, Hedvig

    Artificial Neural Networks Single Layer Networks Multi Layer Networks Generalization Artificial Neural Networks Artificial Neural Networks Single Layer Networks Multi Layer Networks Generalization 1 Artificial Neural Networks Properties Applications Classical Examples Biological Background 2 Single Layer

  5. Electric Field Induced Selective Disordering in Lamellar Block Copolymers

    SciTech Connect (OSTI)

    Ruppel, Markus A [ORNL; Pester, Christian W [ORNL; Langner, Karol M [Leiden Institute of Chemistry, Leiden University, The Netherlands; Sevink, Geert [Leiden Institute of Chemistry, Leiden University, The Netherlands; Schoberth, Heiko [University of Bayreuth; Schmidt, Kristin [ORNL; Urban, Volker S [ORNL; Mays, Jimmy [ORNL; Boker, Alexander [RWTH Aachen University

    2013-01-01T23:59:59.000Z

    External electric fields align nanostructured block copolymers by either rotation of grains or nucleation and growth depending on how strongly the chemically distinct block copolymer components are segregated. In close vicinity to the orderdisorder transition, theory and simulations suggest a third mechanism: selective disordering. We present a time-resolved small-angle X-ray scattering study that demonstrates how an electric field can indeed selectively disintegrate ill-aligned lamellae in a lyotropic block copolymer solution, while lamellae with interfaces oriented parallel to the applied field prevail. The present study adds an additional mechanism to the experimentally corroborated suite of mechanistic pathways, by which nanostructured block copolymers can align with an electric field. Our results further unveil the benefit of electric field assisted annealing for mitigating orientational disorder and topological defects in block copolymer mesophases, both in close vicinity to the orderdisorder transition and well below it.

  6. Block copolymer nanolithography for the fabrication of patterned media.

    SciTech Connect (OSTI)

    Warke, Vishal V [ORNL; Bakker, Martin G [ORNL; Hong, Kunlun [ORNL; Mays, Jimmy [ORNL; Britt, Phillip F [ORNL; Li, Xuefa [Argonne National Laboratory (ANL); Wang, Jin [Argonne National Laboratory (ANL)

    2008-01-01T23:59:59.000Z

    Abstract Bit patterned perpendicular media has the potential to increase the density of magnetic recording beyond what can be achieved by granular media. Self assembling diblock copolymers are of interest as templates for patterned media, as they potentially provide a low cost fabrication route. A method to fabricate the desired pattern using cylinder forming diblock copolymers of (PS-b-PMMA) as template is reported. Upon phase separation hexagonally packed cylinders of the minority phase (PMMA) surrounded by the continuous majority phase (PS) are obtained. The processing sequence began with spin coating the block copolymer on a suitable substrate, followed by annealing the block copolymer thin film in vacuum to orient it perpendicular to the substrate. Block copolymer templates were obtained by glacial acetic acid treatment which opened the pores in the block copolymer thin film. Ni was electrodeposited in the block copolymer templates and this pattern was then transferred onto the underlying substrate by ion milling

  7. Ray Theory for a Locally Layered Random Medium G. Papanicolaou

    E-Print Network [OSTI]

    Papanicolaou, George C.

    variations in the medium parameters. The pulse is generated by a point source and the medium is modeled the source and the point of observation. The ray is determined by high frequency asymptotics (geometrical is motivated by wave propagation in sedimentary rock. Here the sedimentary cycles produce structures

  8. Uranium mineralization along a fault plane in tertiary sedimentary rocks in the McLean 5 Mine, Live Oak Conty, Texas

    E-Print Network [OSTI]

    Bomber, Brenda Jean

    1980-01-01T23:59:59.000Z

    URAN1IUM MINERALIZATION ALONG A FAULT PLANE IN TERTIARY SEDIMENTARY ROCKS IN THE MCLEAN 5 MINE, LIVE OAK COUNTY, TEXAS A Thesis by BRENDA JEAN BOMBER Submitted to the Graduate College of Texas ARM University in partial fulfillment... as to sty1e and content by: Chairman of Committee Member Memb r H o De artment December 1980 ABSTRACT Uranium Mineralization along a Fault Plane in Tertiary Sedimentary Rocks in the McLean 5 Mine, Live Oak County, Texas. (December 1980) Brenda Jean...

  9. Oxygen-reducing catalyst layer

    DOE Patents [OSTI]

    O'Brien, Dennis P. (Maplewood, MN); Schmoeckel, Alison K. (Stillwater, MN); Vernstrom, George D. (Cottage Grove, MN); Atanasoski, Radoslav (Edina, MN); Wood, Thomas E. (Stillwater, MN); Yang, Ruizhi (Halifax, CA); Easton, E. Bradley (Halifax, CA); Dahn, Jeffrey R. (Hubley, CA); O'Neill, David G. (Lake Elmo, MN)

    2011-03-22T23:59:59.000Z

    An oxygen-reducing catalyst layer, and a method of making the oxygen-reducing catalyst layer, where the oxygen-reducing catalyst layer includes a catalytic material film disposed on a substrate with the use of physical vapor deposition and thermal treatment. The catalytic material film includes a transition metal that is substantially free of platinum. At least one of the physical vapor deposition and the thermal treatment is performed in a processing environment comprising a nitrogen-containing gas.

  10. Numerical simulation of coastal flows when solar radiation is blocked by smoke

    SciTech Connect (OSTI)

    Molenkamp, C. R.

    1989-05-01T23:59:59.000Z

    Smoke from fires ignited in a large-scale nuclear exchange would greatly reduce the flux of solar radiation at the ground and lead to rapid cooling over continental regions. Because of its large heat capacity, the ocean would cool more slowly so that a thermal gradient would tend to develop at the continental coastlines. In order to investigate the hypothesis that these thermal gradients would lead to zones of persistent precipitation along the coastlines, a modified version of the Colorado State University Mesoscale Model has been used to simulate the evolution of atmospheric flows for both West and East coasts assuming a moderate westerly synoptic flow of 5 m s/sup /minus/1/. In both cases a layer of fog forms over the ground, effectively limiting the rate of cooling over land. This fog layer grows in height as the atmosphere aloft cools, forming a stratus cloud. Moisture from the ocean surface, mixed vertically into a radiatively cooled atmosphere, causes a cloud layer to form over the ocean as well. With both land and sea covered by clouds, there is no differential cooling, anomalous flow fields, or enhanced precipitation. These simulations also demonstrate the important role of moisture in moderating the initial rate of atmospheric cooling when solar radiation is blocked by smoke.

  11. Micromodel Investigations of CO2 Exsolution from Carbonated Water in Sedimentary Rocks

    SciTech Connect (OSTI)

    Zuo, Lin; Zhang, Changyong; Falta, Ronald W.; Benson, Sally M.

    2013-03-01T23:59:59.000Z

    In this study, carbon dioxide exsolution from carbonated water is directly observed under reservoir conditions (9MPa and 45oC). Fluorescence microscopy and image analysis are used to quantitatively characterize bubble formation, morphology, and mobility. Observations indicate the strong influence of interfacial tension and pore-geometry on bubble growth and evolution. Most of the gas exhibits little mobility during the course of depressurization and clogs water flow paths. However, a snap-off mechanism mobilizes a small portion of the trapped gas along the water flow paths. This feature contributes to the transport of the dispersed exsolved gas phase and the formation of intermittent gas flow. A new definition of critical gas saturation is proposed accordingly as the minimum saturation that snap-off starts to produce mobile bubbles. Low mobility of the water phase and CO2 phase in exsolution is explained by formation of dispersed CO2 bubbles which block water flow and lack the connectivity to create a mobile gas phase.

  12. Structural behavior of silicone bonded glass block panels

    SciTech Connect (OSTI)

    Chang, K.F. [Structural Engineering Associates, Inc., San Antonio, TX (United States); Sandberg, L.B. [Michigan Technological Univ. Houghton, MI (United States)

    1996-12-31T23:59:59.000Z

    Silicone sealant was submitted for mortar in bonding glass blocks. The sealant`s tensile and shear strengths and stiffnesses were determined. Joints bonding two glass blocks were tested for stiffness and strength in tension, bending, out-of-plane shear, and in-plane shear. Bending tests were done on specimens one block wide and four blocks long to evaluate one-way bending behavior. A six block by six block panel, supported on all four sides, was built and tested under simulated wind load. An analytical model with material nonlinearity in the joints was developed for the one-way bending case. It gave good comparisons with the experimental data to load levels approaching failure. A more complex analytical model was developed for the two-way panel. It was only valid for lower load levels, in the range of potential allowable design loads, but compared well with test results. Silicone bonded glass block panels have potential for meeting the wind load requirements necessary for exterior use.

  13. NANOSTRUCTURED METAL OXIDE CATALYSTS VIA BUILDING BLOCK SYNTHESES

    SciTech Connect (OSTI)

    Craig E. Barnes

    2013-03-05T23:59:59.000Z

    A broadly applicable methodology has been developed to prepare new single site catalysts on silica supports. This methodology requires of three critical components: a rigid building block that will be the main structural and compositional component of the support matrix; a family of linking reagents that will be used to insert active metals into the matrix as well as cross link building blocks into a three dimensional matrix; and a clean coupling reaction that will connect building blocks and linking agents together in a controlled fashion. The final piece of conceptual strategy at the center of this methodology involves dosing the building block with known amounts of linking agents so that the targeted connectivity of a linking center to surrounding building blocks is obtained. Achieving targeted connectivities around catalytically active metals in these building block matrices is a critical element of the strategy by which single site catalysts are obtained. This methodology has been demonstrated with a model system involving only silicon and then with two metal-containing systems (titanium and vanadium). The effect that connectivity has on the reactivity of atomically dispersed titanium sites in silica building block matrices has been investigated in the selective oxidation of phenols to benezoquinones. 2-connected titanium sites are found to be five times as active (i.e. initial turnover frequencies) than 4-connected titanium sites (i.e. framework titanium sites).

  14. ELECTRICAL IMAGING AT THE LARGE BLOCK TEST YUCCA MOUNTAIN, NEVADA

    SciTech Connect (OSTI)

    A. Ramirez

    2000-10-01T23:59:59.000Z

    A monolithic block of densely welded tuff was excavated from a site on Fran Ridge near Yucca Mountain, Nevada so that coupled thermohydrological processes could be studied in a controlled, in situ experiment. A series of heaters were placed in a horizontal plane about 3 m from the top of the 3 m by 3 m by 4.5 m high block. Temperatures were measured at many points within and on the block surface and a suite of other measurements were taken to define the thermal and hydrologic response. Electrical resistance tomography (ERT) was used to map 2 dimensional images of moisture content changes along four planes in the block. The ERT images clearly delineate the drying and wetting of the rockmass during the 13 months of heating and subsequent six months of cool down. The main feature is a prominent dry zone that forms around the heaters then gradually disappears as the rock cools down. Other features include linear anomalies of decreasing moisture content which are fractures dehydrating as the block heats up. There are also examples of compact anomalies of wetting. Some of these appear to be water accumulation in fractures which are draining condensate from the block. Others may be rain water entering a fracture at the top of the block. During cooldown a general rewetting is observed although this is less certain because of poor data quality during this stage of the experiment.

  15. GRADUATE STUDENT COURSE ASSIGNMENTS Block 1 Discrete mathematics ---Babai Weeks 18

    E-Print Network [OSTI]

    May, J. Peter

    Products on spaces --- Angeltveit Weeks 5­8 Block 6 Number Theory (Apprentice) --- Babai Weeks 1*­4 Week 1, Guillou, Johnson, Lind Block 4b (Angeltveit) (weeks 5­8) Bohmann, Johnson, Lind Block 5 (Apprentice by block and by mentoring group Name (28) weeks Block Mentoring Alan Anders 8 3b, 3c Apprentice Sundeep

  16. Network layer Connectionless datagram forwarding

    E-Print Network [OSTI]

    (passed down by transport layer) into datagrams Destination host delivers segments up to transport layer by the cold war " If there exists a path, routers will put it in the routing table automatically Forwarding in the original order Physical Link Network Transport Application Physical Link Network Transport Application

  17. Did the Paleo-Asian Ocean between North China Block and Mongolia Block exist during the late Paleozoic? First paleomagnetic evidence

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Did the Paleo-Asian Ocean between North China Block and Mongolia Block exist during the late Paleozoic? First paleomagnetic evidence from central-eastern Inner Mongolia, China Pan Zhao,1,2 Yan Chen,2-Asian Ocean between the North China Block (NCB) and the Mongolia Block (MOB) is a contentious issue

  18. Robot task planning in a non-ideal blocks world 

    E-Print Network [OSTI]

    Rangadass, Vasudev

    1988-01-01T23:59:59.000Z

    this non ? simple support. The difference between a simple support and a non-simple support is shown in figures 2 and 3 respectively. D Fig. 2 Simp/e support. Figure 2 shows a simple support which is a lower pair contact, i. e only face ? face contact...). A 8 B, the blocks in our robot world are represented as schemas. These hold all the information about the blocks like weight, position, dimensions etc. An example schema of block A is shown below. IS-A: CUBOID HAS-FACES: A-F1 A-F2 A-F3 A-F4 A-F5...

  19. Block copolymer adhesion promoters via ring-opening metathesis polymerization

    DOE Patents [OSTI]

    Kent, M.S.; Saunders, R.

    1997-02-18T23:59:59.000Z

    Coupling agents are disclosed based on functionalized block copolymers for bonding thermoset polymers to solid materials. These are polymers which possess at least two types of functional groups, one which is able to attach to and react with solid surfaces, and another which can react with a thermoset resin, which are incorporated as pendant groups in monomers distributed in blocks (typically two) along the backbone of the chain. The block copolymers in this invention are synthesized by living ring-opening metathesis polymerization. 18 figs.

  20. Variety of c-axis collective excitations in layered multigap superconductors

    E-Print Network [OSTI]

    Yukihiro Ota; Masahiko Machida; Tomio Koyama

    2011-04-12T23:59:59.000Z

    We present a dynamical theory for the phase differences along a stacked direction of intrinsic Josephson junctions (IJJ's) in layered multigap superconductors, motivated by the discovery of highly-anisotropic iron-based superconductors with thick perovskite-type blocking layers. The dynamical equations describing AC and DC intrinsic Josephson effects peculiar to multigap IJJ's are derived, and collective Leggett mode excitations in addition to the Josephson plasma established in single-gap IJJ's are predicted. The dispersion relations of their collective modes are explicitly displayed, and the remarkable peculiarity of the Leggett mode is demonstrated.

  1. Blind Block Synchronization Algorithms in Cyclic Prefix Systems

    E-Print Network [OSTI]

    Vaidyanathan, P. P.

    Blind Block Synchronization Algorithms in Cyclic Prefix Systems Borching Su Department to solving the problem blindly, that is, where training symbols are not available. Blind symbol synchronization problem is especially important in many blind channel estimation algorithms in the literature

  2. Finite blocklength analysis of the MISO Coherent Block Fading Channel

    E-Print Network [OSTI]

    Collins, Austin Daniel

    2014-01-01T23:59:59.000Z

    The Coherent MISO Block Fading Channel is a wireless communication channel model in which the transmitter has access to multiple antennas while the receiver has access to one. This model is becoming increasingly important ...

  3. Host-Guest Self-assembly in Block Copolymer Blends

    E-Print Network [OSTI]

    Park, Woon Ik

    Ultrafine, uniform nanostructures with excellent functionalities can be formed by self-assembly of block copolymer (BCP) thin films. However, extension of their geometric variability is not straightforward due to their ...

  4. Energy Efficiency and Conservation Block Grant Program Success...

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

    like this will grace Gabe Nesbitt Community Park in McKinney, Texas, thanks to an Energy Efficiency and Conservation Block Grant | Photo courtesy of McKinney, Texas EECBG...

  5. Revealing the potential of Compressed Earth Blocks : a visual narration

    E-Print Network [OSTI]

    Rabie, Omar

    2008-01-01T23:59:59.000Z

    Compressed Earth Blocks (CEB) is a developed earth technology, in which unbaked brick is produced by compressing raw soil using manual, hydraulic, or mechanical compressing machines. Revealing the potential of an affordable ...

  6. Templated self-assembly of siloxane block copolymers for nanofabrication

    E-Print Network [OSTI]

    Jung, Yeon Sik

    2009-01-01T23:59:59.000Z

    Monolayer patterns of block copolymer (BCP) microdomains have been pursued for applications in below sub-30 nm nanolithography. BCP selfassembly processing is scalable and low cost, and is well-suited for integration with ...

  7. Controlling morphology of multi-component block copolymer based materials

    E-Print Network [OSTI]

    Mickiewicz, Rafal Adam, 1974-

    2009-01-01T23:59:59.000Z

    The ability of block copolymers to self-assemble into ordered microstructures has attracted much interest both from a pure scientific perspective and for their potential in numerous industrial applications. The microphase ...

  8. Microfluidic devices and Block Copolymer Nanolithography Lead: D. Angelescu

    E-Print Network [OSTI]

    Baudoin, Geneviève

    Microfluidic devices and Block Copolymer Nanolithography Lead: D. Angelescu Permanent members: B, X. Yuan One of our activities in microfluidics involves the design of a microfluidic system which measures pressure drops along microfluidic channels involving different types of constrictions using

  9. Improving the polishing process for Rockwell hardness test block

    E-Print Network [OSTI]

    Imani Nejad, Mohammad

    2009-01-01T23:59:59.000Z

    Inefficiencies in a Rockwell hardness test block manufacturing process were analyzed. The polishing stage was identified to be the bottleneck with a high reworking rate. An understanding based on the physics of polishing ...

  10. Microsoft Word - BPA analysis summarizing ALCOA block contract...

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

    Sales Agreement (Block Contract) to Alcoa Inc.'s (Alcoa) Intalco Plant, an aluminum smelter in Ferndale, Washington, at the Industrial Power (IP) rate and how it comports with...

  11. Two urban corners : a design exploration for the Holloway block

    E-Print Network [OSTI]

    Cabot, Thomas Dudley

    1982-01-01T23:59:59.000Z

    This thesis explores built possibilities for two public street corners at the Holloway Block in Burlington, Vermont The site is at the historic commercial center of the town, and consisted until recently of abandoned ...

  12. Synthesis and solution state self-assembly of linear-dendritic block copolymers

    E-Print Network [OSTI]

    Stokes, Kristoffer Keith

    2007-01-01T23:59:59.000Z

    Linear-dendritic block copolymers consisting of a poly(styrene) linear block and poly(amidoamine) dendrimer block were synthesized and examined for their ability to self-assemble in both aqueous environments and organic/aqueous ...

  13. Big Questions: The Ultimate Building Blocks of Matter

    SciTech Connect (OSTI)

    Lincoln, Don

    2013-11-06T23:59:59.000Z

    The Standard Model of particle physics treats quarks and leptons as having no size at all. Quarks are found inside protons and neutrons and the most familiar lepton is the electron. While the best measurements to date support that idea, there is circumstantial evidence that suggests that perhaps the these tiny particles might be composed of even smaller building blocks. This video explains this circumstantial evidence and introduces some very basic ideas of what those building blocks might be.

  14. Memory blocking and recovery for affect word lists

    E-Print Network [OSTI]

    Moynan, Sarah Catherine

    2013-02-22T23:59:59.000Z

    MEMORY BLOCKING AND RECOVERY FOR AFFECT WORD LISTS A Senior Honors Thesis by SARAH CATHERINE MOYNAN Submitted to the Office of Honors Programs k, Academic Scholarships Texas ARM University in partial fulfillment of the requirements... of the UNIVERSITY UNDERGRADUATE RESEARCH FELLOWS April 2004 Major: Psychology MEMORY BLOCKING AND RECOVERY FOR AFFECT WORD LISTS A Senior Honors Thesis by SARAH CATHERINE MOYNAN Submitted to the Office of Honors Programs & Acadenuc Scholarships Texas A...

  15. Big Questions: The Ultimate Building Blocks of Matter

    ScienceCinema (OSTI)

    Lincoln, Don

    2014-08-07T23:59:59.000Z

    The Standard Model of particle physics treats quarks and leptons as having no size at all. Quarks are found inside protons and neutrons and the most familiar lepton is the electron. While the best measurements to date support that idea, there is circumstantial evidence that suggests that perhaps the these tiny particles might be composed of even smaller building blocks. This video explains this circumstantial evidence and introduces some very basic ideas of what those building blocks might be.

  16. Robot task planning in a non-ideal blocks world

    E-Print Network [OSTI]

    Rangadass, Vasudev

    1988-01-01T23:59:59.000Z

    ROBOT TASK PLANNING IN A NON-IDEAL BLOCKS WORLD A Thesis by VASUDEV RANGADASS Submitted to the Graduate College Texas A&M University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE August 1988 Major Subject...: Computer Science ROBOT TASK PLANNING IN A NON-IDEAL BLOCKS WORLD A Thesis by VASUDEV RANGADASS Approved as to style and content by: Amitabha Mu ee (Chairman of Committee) Glen Williams (Member) Arun Sen (Member) Glen Williams (Head...

  17. Irregular Turbo Codes in Block-Fading Channels

    E-Print Network [OSTI]

    Kraidy, Ghassan M; Fàbregas, Albert Guillén i

    2010-01-01T23:59:59.000Z

    We study irregular binary turbo codes over non-ergodic block-fading channels. We first propose an extension of channel multiplexers initially designed for regular turbo codes. We then show that, using these multiplexers, irregular turbo codes that exhibit a small decoding threshold over the ergodic Gaussian-noise channel perform very close to the outage probability on block-fading channels, from both density evolution and finite-length perspectives.

  18. D0 layer 0 innermost layer of silicon microstrip tracker

    SciTech Connect (OSTI)

    Hanagaki, K.; /Fermilab

    2006-01-01T23:59:59.000Z

    A new inner layer silicon strip detector has been built and will be installed in the existing silicon microstrip tracker in D0. They report on the motivation, design, and performance of this new detector.

  19. Bulk Vitrification Castable Refractory Block Protection Study

    SciTech Connect (OSTI)

    Hrma, Pavel R.; Bagaasen, Larry M.; Beck, Andrew E.; Brouns, Thomas M.; Caldwell, Dustin D.; Elliott, Michael L.; Matyas, Josef; Minister, Kevin BC; Schweiger, Michael J.; Strachan, Denis M.; Tinsley, Bronnie P.; Hollenberg, Glenn W.

    2005-05-01T23:59:59.000Z

    Bulk vitrification (BV) was selected for a pilot-scale test and demonstration facility for supplemental treatment to accelerate the cleanup of low-activity waste (LAW) at the Hanford U.S. DOE Site. During engineering-scale (ES) tests, a small fraction of radioactive Tc (and Re, its nonradioactive surrogate) were transferred out of the LAW glass feed and molten LAW glass, and deposited on the surface and within the pores of the castable refractory block (CRB). Laboratory experiments were undertaken to understand the mechanisms of the transport Tc/Re into the CRB during vitrification and to evaluate various means of CRB protection against the deposition of leachable Tc/Re. The tests used Re as a chemical surrogate for Tc. The tests with the baseline CRB showed that the molten LAW penetrates into CRB pores before it converts to glass, leaving deposits of sulfates and chlorides when the nitrate components decompose. Na2O from the LAW reacts with the CRB to create a durable glass phase that may contain Tc/Re. Limited data from a single CRB sample taken from an ES experiment indicate that, while a fraction of Tc/Re is present in the CRB in a readily leachable form, most of the Tc/Re deposited in the refractory is retained in the form of a durable glass phase. In addition, the molten salts from the LAW, mainly sulfates, chlorides, and nitrates, begin to evaporate from BV feeds at temperatures below 800 C and condense on solid surfaces at temperatures below 530 C. Three approaches aimed at reducing or preventing the deposition of soluble Tc/Re within the CRB were proposed: metal lining, sealing the CRB surface with a glaze, and lining the CRB with ceramic tiles. Metal liners were deemed unsuitable because evaluations showed that they can cause unacceptable distortions of the electric field in the BV system. Sodium silicate and a low-alkali borosilicate glaze were selected for testing. The glazes slowed down molten salt condensate penetration, but did little to reduce the penetration of molten salt. Out of several refractory tile candidates, only greystone and fused-cast alumina-zirconia-silica (AZS) refractory remained intact and well bonded to the CRB after firing to 1000 C. The deformation of the refractory-tile composite was avoided by prefiring the greystone tile to 800 C. Condensed vapors did not penetrate the tiles, but Re salts condensed on their surface. Refractory corrosion tests indicated that a 0.25-inch-thick greystone tile would not corrode during a BV melt. Tiles can reduce both vapor penetration and molten salt penetration, but vapor deposition above the melt line will occur even on tiles. The Tc/Re transport scenario was outlined as follows. At temperatures below 700 C, molten ionic salt (MIS) that includes all the Tc/Re penetrates, by capillarity, from the feed into the CRB open porosity. At approximately 750 C, the MIS decomposes through the loss of NOx, leaving mainly sulfate and chloride salts. The Na2O formed in the decomposition of the nitrates reacts with insoluble grains in the feed and with the aluminosilicates in the CRB to form more viscous liquids that reduce further liquid penetration into the CRB. At 800 to 1000 C, a continuous glass phase traps the remains of the MIS in the form of inclusions in the bulk glass melt. At 1000 to 1200 C, the salt inclusions in the glass slowly dissolve but also rise to the surface. The Tc/Re salts also evaporate from the free surface of the glass melt that is rapidly renewed by convective currents. The vapors condense on cooler surfaces in the upper portion of the CRB, the box lid, and the off-gas system.

  20. Growth and characterization of liquid phase epitaxial GaP layers 

    E-Print Network [OSTI]

    Kao, Yung-Chung

    1982-01-01T23:59:59.000Z

    Inside a High-vacuum Chamber . . . . . . . . . . . . . . . . . . . . . . . 3 3. Cross Section of Multi-well Sliding Graphite Boat. Solubility Curve of P in Ga Melt 5. Apparatus of LPE Growth by Tipping Method. 10 Dipping System Schematic for LPE... Growth. 10 7. Sliding Boat System Block Diagram for LPE Growth 12 Temperature Profile Along the Graphite Boat. 13 9. Disassembled Graphite Boat for Multi-layer LPE Growth. . . 14 10. Ga-P Phase Diagram 17 Solution Cooling Procedure for Three...

  1. METEOROLOGY 130 Boundary Layer Meteorology

    E-Print Network [OSTI]

    Clements, Craig

    4) Turbulence Kinetic Energy · TKE budget and terms · Stability concepts · Richardson number 5) Measuring the Boundary Layer · Balloons · Radars · Sodars · Towers (micrometeorology) · Measuring Turbulence Time Series Analysis 8) Similarity Theory and Turbulence Closure 9) Surface Energy Budgets 10) Special

  2. THE MARTIAN ATMOSPHERIC BOUNDARY LAYER

    E-Print Network [OSTI]

    Spiga, Aymeric

    THE MARTIAN ATMOSPHERIC BOUNDARY LAYER A. Petrosyan,1 B. Galperin,2 S. E. Larsen,3 S. R. Lewis,4 A [Haberle et al., 1993a; Larsen et al., 2002; Hinson et al., 2008]. At night, convection is inhibited

  3. General Comparison of Power Loss in Single-Layer and Multi-Layer Windings

    E-Print Network [OSTI]

    General Comparison of Power Loss in Single-Layer and Multi-Layer Windings M. E. Dale C. R. Sullivan the IEEE. #12;General Comparison of Power Loss in Single-Layer and Multi-Layer Windings Magdalena E. Dale

  4. Artificial Neural Networks Single Layer Networks Multi Layer Networks Generalization Artificial Neural Networks

    E-Print Network [OSTI]

    Kjellström, Hedvig

    Artificial Neural Networks Single Layer Networks Multi Layer Networks Generalization Artificial Neural Networks #12;Artificial Neural Networks Single Layer Networks Multi Layer Networks Generalization 1 Artificial Neural Networks Properties Applications Classical Examples Biological Background 2

  5. Hybrid window layer for photovoltaic cells

    DOE Patents [OSTI]

    Deng, Xunming (Syvania, OH)

    2010-02-23T23:59:59.000Z

    A novel photovoltaic solar cell and method of making the same are disclosed. The solar cell includes: at least one absorber layer which could either be a lightly doped layer or an undoped layer, and at least a doped window-layers which comprise at least two sub-window-layers. The first sub-window-layer, which is next to the absorber-layer, is deposited to form desirable junction with the absorber-layer. The second sub-window-layer, which is next to the first sub-window-layer, but not in direct contact with the absorber-layer, is deposited in order to have transmission higher than the first-sub-window-layer.

  6. The limited growth of vegetated shear layers

    E-Print Network [OSTI]

    Ghisalberti, M.

    In contrast to free shear layers, which grow continuously downstream, shear layers generated by submerged vegetation grow only to a finite thickness. Because these shear layers are characterized by coherent vortex structures ...

  7. Hybrid window layer for photovoltaic cells

    DOE Patents [OSTI]

    Deng, Xunming (Syvania, OH); Liao, Xianbo (Toledo, OH); Du, Wenhui (Toledo, OH)

    2011-10-04T23:59:59.000Z

    A novel photovoltaic solar cell and method of making the same are disclosed. The solar cell includes: at least one absorber layer which could either be a lightly doped layer or an undoped layer, and at least a doped window-layers which comprise at least two sub-window-layers. The first sub-window-layer, which is next to the absorber-layer, is deposited to form desirable junction with the absorber-layer. The second sub-window-layer, which is next to the first sub-window-layer, but not in direct contact with the absorber-layer, is deposited in order to have transmission higher than the first-sub-window-layer.

  8. Hybrid window layer for photovoltaic cells

    DOE Patents [OSTI]

    Deng, Xunming (Sylvania, OH); Liao, Xianbo (Toledo, OH); Du, Wenhui (Toledo, OH)

    2011-02-01T23:59:59.000Z

    A novel photovoltaic solar cell and method of making the same are disclosed. The solar cell includes: at least one absorber layer which could either be a lightly doped layer or an undoped layer, and at least a doped window-layers which comprise at least two sub-window-layers. The first sub-window-layer, which is next to the absorber-layer, is deposited to form desirable junction with the absorber-layer. The second sub-window-layer, which is next to the first sub-window-layer, but not in direct contact with the absorber-layer, is deposited in order to have transmission higher than the first-sub-window-layer.

  9. Urchin-inspired zinc oxide as building blocks for nanostructured solar cells

    E-Print Network [OSTI]

    Elias, Jamil; Utke, Ivo; Erni, Rolf; Hosseini, Davood; Michler, Johann; Philippe, Laetitia

    2012-01-01T23:59:59.000Z

    High surface area nanowire based architectures have been identified as important components for future optoelectronic nanodevices, solar cells, wettability coatings, gas sensors, and biofuel cells. Here we report on a novel urchin-inspired nanowire architecture: its interwoven three-dimensional, high-surface-area nanowire arrangement can be precisely controlled by using a low-cost and scalable synthesis based on a combination of nanosphere lithography, low-temperature atomic layer deposition, and electrodeposition. The performance of single-layer arrays of urchin-inspired ZnO nanowire building blocks competes to that of planar nanowire carpets. We illustrate this capability by fabricating fully-inorganic extremely thin absorber solar cells using CdSe as absorber and CuSCN as hole-collector material. The light diffusion of the urchin-inspired nanowire arrays was varied from 15% to 35%. Homogenous absorption in the wavelength range of 400-800 nm of up to 90% was obtained. Solar conversion efficiencies of ~ 1.33...

  10. Ion Transport in Nanostructured Block Copolymer/Ionic Liquid Membranes

    E-Print Network [OSTI]

    Hoarfrost, Megan Lane

    2012-01-01T23:59:59.000Z

    which the corona is small relative to the core, FCC and BCCin which the corona layer is large relative to the core, 14,

  11. Controlled Self Assembly of Conjugated Polymer Containing Block Copolymers

    E-Print Network [OSTI]

    McCulloch, Bryan

    2012-01-01T23:59:59.000Z

    structures and photovoltaic performance have only begun tosuggest good photovoltaic performance both in layered and3.6. Photovoltaic device performance………………………………………….. 68

  12. Controlled Self Assembly of Conjugated Polymer Containing Block Copolymers

    E-Print Network [OSTI]

    McCulloch, Bryan

    2012-01-01T23:59:59.000Z

    in dye/polymer blend photovoltaic cells. Advanced MaterialsA. J. , Polymer Photovoltaic Cells - Enhanced Efficiencies2-Layer Organic Photovoltaic Cell. Applied Physics Letters

  13. Morphological studies on block copolymer modified PA 6 blends

    SciTech Connect (OSTI)

    Poindl, M., E-mail: marcus.poindl@ikt.uni-stuttgart.de, E-mail: christian.bonten@ikt.uni-stuttgart.de; Bonten, C., E-mail: marcus.poindl@ikt.uni-stuttgart.de, E-mail: christian.bonten@ikt.uni-stuttgart.de [Institut für Kunststofftechnik, University of Stuttgart (Germany)

    2014-05-15T23:59:59.000Z

    Recent studies show that compounding polyamide 6 (PA 6) with a PA 6 polyether block copolymers made by reaction injection molding (RIM) or continuous anionic polymerization in a reactive extrusion process (REX) result in blends with high impact strength and high stiffness compared to conventional rubber blends. In this paper, different high impact PA 6 blends were prepared using a twin screw extruder. The different impact modifiers were an ethylene propylene copolymer, a PA PA 6 polyether block copolymer made by reaction injection molding and one made by reactive extrusion. To ensure good particle matrix bonding, the ethylene propylene copolymer was grafted with maleic anhydride (EPR-g-MA). Due to the molecular structure of the two block copolymers, a coupling agent was not necessary. The block copolymers are semi-crystalline and partially cross-linked in contrast to commonly used amorphous rubbers which are usually uncured. The combination of different analysis methods like atomic force microscopy (AFM), transmission electron microscopy (TEM) and scanning electron microscopy (SEM) gave a detailed view in the structure of the blends. Due to the partial cross-linking, the particles of the block copolymers in the blends are not spherical like the ones of ethylene propylene copolymer. The differences in molecular structure, miscibility and grafting of the impact modifiers result in different mechanical properties and different blend morphologies.

  14. The Announcement Layer: Beacon Coordination for the Sensornet Stack

    E-Print Network [OSTI]

    Dunkels, Adam

    consumption. #12;MAC / Link layers ... ... Multiple, uncoordinated beacons Collect Trickle Deluge Collect Trickle Deluge Coordinated beacons Announcement layer MAC / Link layers Fig. 1. The announcement layer

  15. The Influence of Basalt Layers on Seismic Wave Propagation 

    E-Print Network [OSTI]

    Hanssen, Peter

    are to examine the effects of basalts on seismic wave propagation and the concequent implications for imaging sedimentary structures beneath them. From studies of basalt propertiesand borehole data in connection with foreward modelling and real data, I show...

  16. Theoretical study of water blocking in miscible flooding

    SciTech Connect (OSTI)

    Muller, T. (BEB Erdgas and Erdol GmbH (DE)); Lake, L.W. (Texas Univ., Austin, TX (United States))

    1991-11-01T23:59:59.000Z

    Miscible displacement processes can leave a substantial amount of residual oil behind the displacement front. This phenomenon has two general causes: instabilities caused by local heterogeneities or viscous fingering and water blocking. This paper describes a study of the latter. Numerous laboratory experiments have shown that significant blocking of oil from the solvent by mobile water can occur in water-wet media and at large water saturations. Despite this, water-blocking studies have been limited to either simple correction functions in numerical simulations or microscopic models. To the best of the authors' knowledge, no explicit theoretical model considers the macroscopic bypassing and subsequent interaction of the solvent stream with a trapped hydrocarbon phase. In this study, CO{sub 2} is the miscible solvent. A numerical model calculates the mass flux between flowing and stagnant regions separated by a water film. The model considers solvent diffusion and diffusional extraction of oil accompanied by swelling or shrinking of the stagnant hydrocarbon phase.

  17. Surface code implementation of block code state distillation

    E-Print Network [OSTI]

    Austin G. Fowler; Simon J. Devitt; Cody Jones

    2013-01-29T23:59:59.000Z

    State distillation is the process of taking a number of imperfect copies of a particular quantum state and producing fewer better copies. Until recently, the lowest overhead method of distilling states |A>=(|0>+e^{i\\pi/4}|1>)/\\sqrt{2} produced a single improved |A> state given 15 input copies. New block code state distillation methods can produce k improved |A> states given 3k+8 input copies, potentially significantly reducing the overhead associated with state distillation. We construct an explicit surface code implementation of block code state distillation and quantitatively compare the overhead of this approach to the old. We find that, using the best available techniques, for parameters of practical interest, block code state distillation does not always lead to lower overhead, and, when it does, the overhead reduction is typically less than a factor of three.

  18. On Computation of Approximate Joint Block-Diagonalization using Ordinary AJD

    E-Print Network [OSTI]

    Yeredor, Arie

    On Computation of Approximate Joint Block-Diagonalization using Ordinary AJD Petr Tichavský 1 2, 461 17 Liberec, Czech Republic Abstract. Approximate joint block diagonalization (AJBD) of a set, we prove that when the set is exactly jointly block-diagonalizable, perfect block

  19. Block-LDA: Jointly modeling entity-annotated text and entity-entity Ramnath Balasubramanyan

    E-Print Network [OSTI]

    Cohen, William W.

    Block-LDA: Jointly modeling entity-annotated text and entity-entity links Ramnath Balasubramanyan established by Nallapati et al. [6]. In this paper, we present a model, Block-LDA, that jointly generates text in topic models with blocks in stochastic block models. The joint modeling permits sharing of in- formation

  20. Neighbour balance in a strip-block design for an experiment on irrigation

    E-Print Network [OSTI]

    Bailey, R. A.

    Neighbour balance in a strip-block design for an experiment on irrigation R. A. Bailey (Joint work There are 8 blocks. 2/15 #12;Irrigation experiment on citrus plants in a greenhouse There are 8 blocks. Each block is (4 rows ) Ã? (4 columns )/(4 pots ). 2/15 #12;Irrigation experiment on citrus plants

  1. The moving blocks bootstrap versus parametric time series Richard M. Vogel

    E-Print Network [OSTI]

    Vogel, Richard M.

    The moving blocks bootstrap versus parametric time series models Richard M. Vogel Department adding uncertainty to the analysis. The moving blocks bootstrap is a simple resampling algorithm which of the moving block length. The moving blocks bootstrap resamples the observed time series using approximately

  2. Where is the North ChinaSouth China block boundary in eastern China?

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Where is the North China­South China block boundary in eastern China? Michel Faure, Wei Lin of the North China and South China blocks. The eastern extension of the belt (the Sulu area) consists and the lack of ocean-basin rock shows that the boundary between the North China block and South China block

  3. Strontium Distribution Coefficients of Surficial and Sedimentary Interbed Samples from the Idaho National Engineering and Environmental Laboratory, Idaho

    SciTech Connect (OSTI)

    M. J. Liszewski (USGS); J. J. Rosentreter (ISU); K. E. Miller (USGS); R. C. Bartholomay (USGS)

    1998-04-01T23:59:59.000Z

    The transport and fate of waste constituents in geologic media is dependent on physical and chemical processes that govern the distribution of constituents between the solid, geologic, stationary phase and an aqueous, mobile phase. This distribution often is quantified, at thermodynamic equilibrium by an empirically determined parameter called the distribution coefficient (Kd). Kd's can be used effectively to summarize the chemical factors that affect transport efficiency of ground-water constituents. Strontium distribution coefficients (Kd's) were measured for 21 surficial and 17 sedimentary interbed samples collected from sediment cores from selected sites at the Idaho National Engineering and Environmental Laboratory (INEEL) to help assess the variability of strontium Kd's at the INEEL as part of an ongoing investigation of strontium chemical-transport properties. Batch experimental techniques were used to determine strontium Kd's of the sediments. Measured strontium Kd's of th e surficial and interbedded sediments ranged from 26{+-}1 to 328{+-}41 milliliters per gram. These results indicate significant variability in the strontium sorptive capacities of surficial and interbedded sediments at the INEEL. Some of this variability can be attributed to physical and chemical properties of the sediment; other variability may be due to compositional changes in the equilibrated solutions after being mixed with the sediment.

  4. A Note on the Use of the Woodbury Formula To Solve Cyclic Block Tri-Diagonal and Cyclic Block Penta-diagonal Linear Systems of Equations

    E-Print Network [OSTI]

    Milan Batista; Abdel Rahman A. Ibrahim Karawia

    2008-07-24T23:59:59.000Z

    The article presents the theoretical background of the algorithms for solving cyclic block tridiagonal and cyclic block penta-diagonal systems of linear algebraic equations present in ref [1] and [2]. The theory is based on the Woodbury formula.

  5. Layered architecture for quantum computing

    E-Print Network [OSTI]

    N. Cody Jones; Rodney Van Meter; Austin G. Fowler; Peter L. McMahon; Jungsang Kim; Thaddeus D. Ladd; Yoshihisa Yamamoto

    2012-09-27T23:59:59.000Z

    We develop a layered quantum computer architecture, which is a systematic framework for tackling the individual challenges of developing a quantum computer while constructing a cohesive device design. We discuss many of the prominent techniques for implementing circuit-model quantum computing and introduce several new methods, with an emphasis on employing surface code quantum error correction. In doing so, we propose a new quantum computer architecture based on optical control of quantum dots. The timescales of physical hardware operations and logical, error-corrected quantum gates differ by several orders of magnitude. By dividing functionality into layers, we can design and analyze subsystems independently, demonstrating the value of our layered architectural approach. Using this concrete hardware platform, we provide resource analysis for executing fault-tolerant quantum algorithms for integer factoring and quantum simulation, finding that the quantum dot architecture we study could solve such problems on the timescale of days.

  6. Lignin-blocking treatment of biomass and uses thereof

    DOE Patents [OSTI]

    Yang, Bin (Hanover, NH); Wyman, Charles E. (Norwich, VT)

    2009-10-20T23:59:59.000Z

    Disclosed is a method for converting cellulose in a lignocellulosic biomass. The method provides for a lignin-blocking polypeptide and/or protein treatment of high lignin solids. The treatment enhances cellulase availability in cellulose conversion. Cellulase efficiencies are improved by the protein or polypeptide treatment. The treatment may be used in combination with steam explosion and acid prehydrolysis techniques. Hydrolysis yields from lignin containing biomass are enhanced 5-20%, and enzyme utilization is increased from 10% to 50%. Thus, a more efficient and economical method of processing lignin containing biomass materials utilizes a polypeptide/protein treatment step that effectively blocks lignin binding of cellulase.

  7. Electrically conductive doped block copolymer of polyacetylene and polyisoprene

    DOE Patents [OSTI]

    Aldissi, Mahmoud (Los Alamos, NM)

    1985-01-01T23:59:59.000Z

    An electrically conductive block copolymer of polyisoprene and polyacetyl and a method of making the same are disclosed. The polymer is prepared by first polymerizing isoprene with n-butyllithium in a toluene solution to form an active isoprenyllithium polymer. The active polymer is reacted with an equimolar amount of titanium butoxide and subsequently exposed to gaseous acetylene. A block copolymer of polyisoprene and polyacetylene is formed. The copolymer is soluble in common solvents and may be doped with I.sub.2 to give it an electrical conductivity in the metallic regime.

  8. Layered Manufacturing Sara McMains

    E-Print Network [OSTI]

    McMains, Sara

    ­ Sintering (vector) ­ 3D Printing (raster) #12;Stereolithography (SLA) · First commercial layered

  9. Buffer layer for thin film structures

    DOE Patents [OSTI]

    Foltyn, Stephen R.; Jia, Quanxi; Arendt, Paul N.; Wang, Haiyan

    2010-06-15T23:59:59.000Z

    A composite structure including a base substrate and a layer of a mixture of strontium titanate and strontium ruthenate is provided. A superconducting article can include a composite structure including an outermost layer of magnesium oxide, a buffer layer of strontium titanate or a mixture of strontium titanate and strontium ruthenate and a top-layer of a superconducting material such as YBCO upon the buffer layer.

  10. Buffer layer for thin film structures

    DOE Patents [OSTI]

    Foltyn, Stephen R.; Jia, Quanxi; Arendt, Paul N.; Wang, Haiyan

    2006-10-31T23:59:59.000Z

    A composite structure including a base substrate and a layer of a mixture of strontium titanate and strontium ruthenate is provided. A superconducting article can include a composite structure including an outermost layer of magnesium oxide, a buffer layer of strontium titanate or a mixture of strontium titanate and strontium ruthenate and a top-layer of a superconducting material such as YBCO upon the buffer layer.

  11. Chemical solution seed layer for rabits tapes

    SciTech Connect (OSTI)

    Goyal, Amit; Paranthaman, Mariappan; Wee, Sung-Hun

    2014-06-10T23:59:59.000Z

    A method for making a superconducting article includes the steps of providing a biaxially textured substrate. A seed layer is then deposited. The seed layer includes a double perovskite of the formula A.sub.2B'B''O.sub.6, where A is rare earth or alkaline earth metal and B' and B'' are different rare earth or transition metal cations. A superconductor layer is grown epitaxially such that the superconductor layer is supported by the seed layer.

  12. Block Tensor Decomposition for Source Apportionment of Air Pollution

    E-Print Network [OSTI]

    Hopke, Philip K; Li, Na; Navasca, Carmeliza

    2011-01-01T23:59:59.000Z

    The ambient particulate chemical composition data with three particle diameter sizes (2.5mmair sample data. In particular, we use the Block Term Decomposition (BTD) in rank-(L;L;1) form to identify nine pollution sources (Fe+Zn, Sulfur with Dust, Road Dust, two types of Metal Works, Road Salt, Local Sulfate, and Homogeneous and Cloud Sulfate).

  13. Dynamic One-Pile Blocking Nim Achim Flammenkamp

    E-Print Network [OSTI]

    Reiter, Harold

    Dynamic One-Pile Blocking Nim Achim Flammenkamp Mathematisierung, Universit¨at Bielefeld, Federal consisting of one-pile counter pickup games for which the number of counters that can be removed on each imply that (Mi-mi N0)iN is a nondecreasing sequence. There are two players and a pile of counters

  14. Power Control for Discrete-Input Block-Fading Channels

    E-Print Network [OSTI]

    Guillén i Fàbregas, Albert

    . K. Rasmussen CUED / F-INFENG / TR 582 August 2007 #12;#12;1 Power Control for Discrete-Input Block-Fading Channels Khoa D. Nguyen, Albert Guill´en i F`abregas and Lars K. Rasmussen Abstract We consider power systems employing orthogonal frequency division multiplexing. K. D. Nguyen and L. K. Rasmussen

  15. A P-5 Nuclear Dialogue: Concept, Building Blocks, and Implementation

    E-Print Network [OSTI]

    #12;A P-5 Nuclear Dialogue: Concept, Building Blocks, and Implementation Paul I. Bernstein, biological, radiological, nuclear, and high explosives) by providing capabilities to reduce, eliminate affirmed "America's intention to seek the peace and security of a world without nuclear weapons" and stated

  16. Parallel revised simplex for primal block angular LP problems

    E-Print Network [OSTI]

    Hall, Julian

    Parallel revised simplex for primal block angular LP problems Julian Hall and Edmund Smith School) problems and their identification Computational components of the revised simplex method Exploiting parallelism via BALP structure Results Observations J. A. J. Hall and E. Smith Parallel revised simplex

  17. Analysis of Semantic Building Blocks via Grobner Bases

    E-Print Network [OSTI]

    Fernandez, Thomas

    for the space of multivariate polynomials in n variables, capable of expressing arbitrary sums and productsAnalysis of Semantic Building Blocks via Gr¨obner Bases Jerry Swan1 , Geoffrey K. Neumann1 for greatest common divisor from univariate to multivariate polyno- mials. Since its invention in 1965, it has

  18. Experiments with a Block Sorting Text Compression Algorithm

    E-Print Network [OSTI]

    Fenwick, Peter

    compressors. The original paper did little more than present the algorithm, with strong advice for efficient on aspects of its operation. Consideration of the possible efficiency of text compression leads to the revival of ideas by Shannon as the basis of a text compressor and then to the classification of the Block

  19. Discrete fracture modeling for fractured reservoirs using Voronoi grid blocks

    E-Print Network [OSTI]

    Gross, Matthew Edward

    2007-09-17T23:59:59.000Z

    or pseudofracture groups modeled in their own grid blocks. Discrete Fracture Modeling (DFN) is still a relatively new field, and most research on it up to this point has been done with Delaunay tessellations. This research investigates an alternative approach using...

  20. Energy Efficiency and Conservation Block Grant Program Fact Sheet

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy’s (DOE) Energy Efficiency and Conservation Block Grant (EECBG) program represents a Presidential priority to invest in the cheapest, cleanest and most reliable energy technologies we have – energy efficiency and conservation – which can be deployed immediately.

  1. Cold winters and the relation to atmospheric blocking

    E-Print Network [OSTI]

    de Vries, Hylke

    and Klimaatverandering" (Atmospheric Blocking and Climate Change). Cover: Anomaly composite fields of mean sea Iceland region, and the Scandinavia Russia region. Particularly the latter pattern is associated with very already between 10 and 20 days. Under the A1B emission scenario and using climate model output (ESSENCE

  2. Block Bootstrap Estimation of the Distribution of Cumulative Outdoor Degradation

    E-Print Network [OSTI]

    Block Bootstrap Estimation of the Distribution of Cumulative Outdoor Degradation Victor Chan University Ames, IA 50011 October 28, 2003 Abstract An interesting prediction problem involving degradation cumulative degrada- tion using small- to moderate-size degradation data sets. This distribution, which

  3. Energy Conservation Analysis of Three-Row-Hole Hollow Blocks

    E-Print Network [OSTI]

    Chen, G.; Li, H.; Liu, Z.

    2006-01-01T23:59:59.000Z

    In recent years, solid clay blocks have been forbidden in large and middle cities with the wall reformation policy issued in China. Many kinds of new wall materials have appeared in the market, but little research has been done on these new...

  4. The 5th Dimension: Building Blocks for Smart Infrastructures

    E-Print Network [OSTI]

    artifact. Obviously, since the books only pass the energy field of the reader for a few seconds, any formThe 5th Dimension: Building Blocks for Smart Infrastructures Marc Langheinrich ETH Zurich Institute example of such an interaction in 5D would be the following scenario: two "smart" (i.e., tagged) books

  5. ESTIMATION OF MATRIX BLOCK SIZE DISTRIBUTION IN NATURALLY FRACTURED RESERVOIRS

    E-Print Network [OSTI]

    Stanford University

    ESTIMATION OF MATRIX BLOCK SIZE DISTRIBUTION IN NATURALLY FRACTURED RESERVOIRS A Report Submitted;2 ABSTRACT Interporosity flow in a naturslly fractured reservoir is modelled by a new formulation of the distribution. Thus, observed pressure response from fractured reservoirs can be analysed to obtain the matrix

  6. Effect of surfactant treated boehmite nanoparticles on properties of block

    E-Print Network [OSTI]

    North Texas, University of

    Effect of surfactant treated boehmite nanoparticles on properties of block copolymers R. Adhikari1 and treated with sulphonic acid based surfactants with different alkyl groups. As expected, the coupling and treated with sulphonic acid based surfactants with different alkyl groups. As matrixes, polystyrene

  7. Biholomorphic maps with linear parts having Jordan blocks: linearization and

    E-Print Network [OSTI]

    Jordan block. Our main result proves convergence of the linearizing transformation of maps for which the Jordan part of the spectrum lies inside the unit circle and the spectrum satis#12;es a R in (C [x]) n , (1.2) where C [x] stands for the set of all formal power series with complex coe

  8. Polymethylmethacrylate blocking trays. The effects of repeated usage

    SciTech Connect (OSTI)

    Biggs, P.J.

    1983-10-01T23:59:59.000Z

    Sheets of polymethylmethacrylate (Lucite), which are commonly used to hold low-melting-point alloy blocks for radiation therapy treatments, are frequently recycled; subsequently, they generally contain a substantial number of holes. Experiments which have been performed to measure the deflection of these plates under a load indicate that, even with many holes drilled through the plates, their strength is not diminished significantly.

  9. Blocking Gibbs Sampling in Very Large Probabilistic Expert Systems

    E-Print Network [OSTI]

    of Chicago 1118E 58th St. Chicago IL 60637 kong@galton.uchicago.edu U#11;e Kj#26;rul#11; Aalborg University converges much faster than plain Gibbs sampling for very complex problems. Keywords: probabilistic expert one shall be referred to as plain Gibbs. The evaluation of our blocking-Gibbs method is conducted

  10. The Plumber's Nightmare:1 A New Morphology in Block

    E-Print Network [OSTI]

    Gruner, Sol M.

    The Plumber's Nightmare:1 A New Morphology in Block Copolymer-Ceramic Nanocomposites and Mesoporous-ceramic nanocomposites and mesoporous aluminosilicates that are derived by an amphiphilic diblock copolymer, poly-copolymer-derived hybrid morphology is discussed in the context of a pseudo-ternary morphology diagram and compared

  11. Berkeley Emeriti Amy Block Joy, Ph.D.

    E-Print Network [OSTI]

    Alvarez-Cohen, Lisa

    ; journal articles and books follow. Amy Block Joy, PhD, has authored plenty of material as an academic The Faculty Club It is not unusual for academics to author books; in fact, it's expected. Conduct the research. Dr. Joy's academic roots are in Berkeley. She received her BA in Biochemistry and Bacteriology (with

  12. Nanowires As Building Blocks for Bottom-Up Nanotechnology

    E-Print Network [OSTI]

    Wang, Zhong L.

    #12;Nanowires As Building Blocks for Bottom-Up Nanotechnology The field of nanotechnology/or combinations of function in an integrated nanosystem. To enable this bottom-up approach for nanotechnology-dimensional (1D) nanostruc- tures at the forefront of nanoscience and nanotechnology. NWs and NBs are typi- cally

  13. {sup 210}Pb dating of sediments from the central and northern Adriatic Sea: deposition and preservation of sedimentary organic carbon

    SciTech Connect (OSTI)

    Hamilton, T. F., LLNL

    1998-04-01T23:59:59.000Z

    Lead-210 ({sup 21O}Pb) and organic C depth distribution profiles in sediments from the northern and central Adriatic Sea were measured as part of the EEC funded project on Eutrophic Limits of the Northern Adriatic (ELNA). {sup 210}Pb derived mass-accumulation rates decrease southward from between 0.15 and 0.2 g cm{sup -2}y{sup -1} close to the Po River outflow (> 24 m, water depth) to less than 0.04 g cm{sup -2}y{sup -1} in the Jabuka Pit (246 m, water depth) in the central Adriatic Sea. The mass- accumulation rates obtained in the Jabuka Pit correspond to mean sedimentation rates of about 0.03 cm y{sup -1} (ref. porosity = 0.5) and fall between 5 to 20 times lower than rates found for north Adriatic shelf cores. Estimated sedimentation rates are considered as upper limits because of the possible effects of bioturbation and physical disturbance on the {sup 21O}Pb sedimentary record but are consistent with data from previous work. Rates of sediment accumulation and carbon burial appear to be strongly influenced by the transport of fluvial materials from land and transport of fine-grained particles. First-order estimates of organic C burial rates into surface sediment ranged from 1 to 0.028 mMol cm{sup -2}y{sup -1} between the Po delta and the Jabuka Pit regions, respectively. We estimate that a maximum of 50% of organic C preserved in surface sediment may be derived from biological production in the overlying water column.

  14. Interface dynamics for layered structures

    E-Print Network [OSTI]

    Takao Ohta; David Jasnow

    1997-07-17T23:59:59.000Z

    We investigate dynamics of large scale and slow deformations of layered structures. Starting from the respective model equations for a non-conserved system, a conserved system and a binary fluid, we derive the interface equations which are a coupled set of equations for deformations of the boundaries of each domain. A further reduction of the degrees of freedom is possible for a non-conserved system such that internal motion of each domain is adiabatically eliminated. The resulting equation of motion contains only the displacement of the center of gravity of domains, which is equivalent to the phase variable of a periodic structure. Thus our formulation automatically includes the phase dynamics of layered structures. In a conserved system and a binary fluid, however, the internal motion of domains turns out to be a slow variable in the long wavelength limit because of concentration conservation. Therefore a reduced description only involving the phase variable is not generally justified.

  15. Electronic transport in atomically thin layered materials

    E-Print Network [OSTI]

    Baugher, Britton William Herbert

    2014-01-01T23:59:59.000Z

    Electronic transport in atomically thin layered materials has been a burgeoning field of study since the discovery of isolated single layer graphene in 2004. Graphene, a semi-metal, has a unique gapless Dirac-like band ...

  16. Rutting and drainage design methodology for a concrete block pavement

    E-Print Network [OSTI]

    Poduska, Daryl Jason

    1998-01-01T23:59:59.000Z

    . Organization of Thesis. . 2 3 5 II LITERATURE REVIEW. . Analysis of Concrete Block Pavements. . . . . . . . . . , . . . . . . Previous Design Procedures . Factors Affecting the Pavement's Performance. . . . . 7 9 18 III COLLECTION OF FIELD DATA. 28.... . . . 2 Experience based design chart used in Denmark. . . . . 10 3 Experience based design chart used in South Africa. . . . . . . . . . . . . . 4 Marais' design curve based on Westergaard's slab theory. . . . . 12 5 CCA design chart used in Great...

  17. Asymptotic results for bifurcations in pure bending of rubber blocks

    E-Print Network [OSTI]

    Coman, Ciprian; 10.1093/qjmam/hbn009

    2008-01-01T23:59:59.000Z

    The bifurcation of an incompressible neo-Hookean thick block with a ratio of thickness to length {eta}, subject to pure bending, is considered. The two incremental equilibrium equations corresponding to a nonlinear pre-buckling state of strain are reduced to a fourth-order linear eigenproblem that displays a multiple turning point. It is found that for 0 {infty} degenerates into a surface instability. Singular perturbation methods enable us to capture this transition, while direct numerical simulations corroborate the analytical results.

  18. Coefficient quantization effects in block state variable digital filters 

    E-Print Network [OSTI]

    Lee, Kab Joo

    1991-01-01T23:59:59.000Z

    COEFFICIENT QUANTIZATION EFFECTS IN BLOCK STATE VARIABLE DIGITAL FILTERS A Thesis by KAB JOO LEE Submitted to the Office of Graduate Studies of Texas ARM University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE August 1991 Major Subject: Electrical Engineering COEFFICIENT QIJANTIZATIOU EFFECTS IN l3LOCI~ STATE VARIABLE DIGITAL FILTERS A Thesis hs IiAB JOO LEE Approved as to style and content by: WVilliam G. )3liss (Chair of Comnaittee) Norman C...

  19. Optical Metamaterials by Block-Copolymer Self-Assembly

    E-Print Network [OSTI]

    Salvatore, Stefano

    2014-05-27T23:59:59.000Z

    , with block types A, B and C confined to regions colored blue, red and green, respectively. Adapted from ?. was selectively etched and backfilled by electrodeposition, producing a metal single gyroid. The single gyroid has strong chirality in certain... -gel chemistry ?. The replication of the gyroid morphology into metals was also achieved by electroless deposition of nickel for catalytic applications ? and by sol-gel chem- istry to create a highly porous SiO2 structure with a reduced refractive index. Gyroid...

  20. EIS-0006: Wind Turbine Generator System, Block Island, Rhode Island

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy prepared this EIS to evaluate the environmental impacts of installing and operating a large experimental wind turbine, designated the MOD-OA, which is proposed to be installed on a knoll in Rhode Island's New Meadow Hill Swamp, integrated with the adjacent Block Island Power Company power plant and operated to supply electricity to the existing utility network.

  1. Coefficient quantization effects in block state variable digital filters

    E-Print Network [OSTI]

    Lee, Kab Joo

    1991-01-01T23:59:59.000Z

    COEFFICIENT QUANTIZATION EFFECTS IN BLOCK STATE VARIABLE DIGITAL FILTERS A Thesis by KAB JOO LEE Submitted to the Office of Graduate Studies of Texas ARM University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE August 1991 Major Subject: Electrical Engineering COEFFICIENT QIJANTIZATIOU EFFECTS IN l3LOCI~ STATE VARIABLE DIGITAL FILTERS A Thesis hs IiAB JOO LEE Approved as to style and content by: WVilliam G. )3liss (Chair of Comnaittee) Norman C...

  2. Radical-cured block copolymer-modified thermosets

    SciTech Connect (OSTI)

    Redline, Erica M.; Francis, Lorraine F.; Bates, Frank S. (UMM)

    2013-01-10T23:59:59.000Z

    Poly(ethylene-alt-propylene)-b-poly(ethylene oxide) (PEP-PEO) diblock copolymers were synthesized and added at 4 wt % to 2,2-bis[4-(2-hydroxy-3-methacryloxypropoxy)phenyl]propane (BisGMA), a monomer that cures using free radical chemistry. In separate experiments, poly(ethylene glycol) dimethacrylate (PEGDMA) was combined as a secondary monomer with BisGMA and the monomers were loaded with 4 wt % PEP-PEO. The diblock copolymers self-assembled into well-dispersed spherical micelles with PEP cores and PEO coronas. No appreciable change in the final extent of cure of the thermosets was caused by the addition of diblock copolymer, except in the case of BisGMA, where the addition of the block copolymer increased extent of cure by 12%. Furthermore, the extent of cure was increased by 29% and 37% with the addition of 25 and 50 wt % PEGDMA, respectively. Elastic modulus and fracture resistance were also determined, and the values indicate that the addition of block copolymers does not significantly toughen the thermoset materials. This finding is surprising when compared with the large increase in fracture resistance seen in block copolymer-modified epoxies, and an explanation is proposed.

  3. Physical layer model design for wireless networks 

    E-Print Network [OSTI]

    Yu, Yi

    2009-06-02T23:59:59.000Z

    the relationship between wireless protocol design and physical layer models, it is necessary to first comprehend the network architecture, which groups the communication functions into related and manageable layers. The journal model is IEEE Transactions... data to the network format and vice versa. It is intended to provide independence from different represen- tations of application layer data. The session layer deals with sessions and connections between applications. It manages conversations between...

  4. Segmentation of the Hellenides recorded by Pliocene initiation of clockwise block rotation in Central Greece

    E-Print Network [OSTI]

    Weiss, Benjamin P.

    in Central Greece Kyle E. Bradley a,n , Emmanuel Vassilakis b , Aleksandra Hosa a,1 , Benjamin P. Weiss Athens, Greece a r t i c l e i n f o Article history: Received 11 July 2012 Received in revised form 14 sedimentary and volcanic rocks in Central Greece constrain the history of vertical-axis rotation along

  5. Radio-transparent multi-layer insulation for radiowave receivers

    SciTech Connect (OSTI)

    Choi, J. [Korea University, Anam-dong Seongbuk-gu, Seoul 136-713 (Korea, Republic of)] [Korea University, Anam-dong Seongbuk-gu, Seoul 136-713 (Korea, Republic of); Ishitsuka, H. [Department of Particle and Nuclear Physics, School of High Energy Accelerator Science, The Graduate University for Advanced Studies (SOKENDAI), Shonan Village, Hayama, Kanagawa 240-0193 (Japan)] [Department of Particle and Nuclear Physics, School of High Energy Accelerator Science, The Graduate University for Advanced Studies (SOKENDAI), Shonan Village, Hayama, Kanagawa 240-0193 (Japan); Mima, S. [Terahertz Sensing and Imaging Team, Terahertz-wave Research Group, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan)] [Terahertz Sensing and Imaging Team, Terahertz-wave Research Group, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan); Oguri, S., E-mail: shugo@post.kek.jp [Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Oho, Tsukuba, Ibaraki 305-0801 (Japan); Takahashi, K. [Terahertz Sensing and Imaging Team, Terahertz-wave Research Group, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan) [Terahertz Sensing and Imaging Team, Terahertz-wave Research Group, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan); Department of Physics, Tohoku University, Sendai, Miyagi 980-8578 (Japan); Tajima, O. [Department of Particle and Nuclear Physics, School of High Energy Accelerator Science, The Graduate University for Advanced Studies (SOKENDAI), Shonan Village, Hayama, Kanagawa 240-0193 (Japan) [Department of Particle and Nuclear Physics, School of High Energy Accelerator Science, The Graduate University for Advanced Studies (SOKENDAI), Shonan Village, Hayama, Kanagawa 240-0193 (Japan); Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Oho, Tsukuba, Ibaraki 305-0801 (Japan)

    2013-11-15T23:59:59.000Z

    In the field of radiowave detection, enlarging the receiver aperture to enhance the amount of light detected is essential for greater scientific achievements. One challenge in using radio transmittable apertures is keeping the detectors cool. This is because transparency to thermal radiation above the radio frequency range increases the thermal load. In shielding from thermal radiation, a general strategy is to install thermal filters in the light path between aperture and detectors. However, there is difficulty in fabricating metal mesh filters of large diameters. It is also difficult to maintain large diameter absorptive-type filters in cold because of their limited thermal conductance. A technology that maintains cold conditions while allowing larger apertures has been long-awaited. We propose radio-transparent multi-layer insulation (RT-MLI) composed from a set of stacked insulating layers. The insulator is transparent to radio frequencies, but not transparent to infrared radiation. The basic idea for cooling is similar to conventional multi-layer insulation. It leads to a reduction in thermal radiation while maintaining a uniform surface temperature. The advantage of this technique over other filter types is that no thermal links are required. As insulator material, we used foamed polystyrene; its low index of refraction makes an anti-reflection coating unnecessary. We measured the basic performance of RT-MLI to confirm that thermal loads are lowered with more layers. We also confirmed that our RT-MLI has high transmittance to radiowaves, but blocks infrared radiation. For example, RT-MLI with 12 layers has a transmittance greater than 95% (lower than 1%) below 200 GHz (above 4 THz). We demonstrated its effects in a system with absorptive-type filters, where aperture diameters were 200 mm. Low temperatures were successfully maintained for the filters. We conclude that this technology significantly enhances the cooling of radiowave receivers, and is particularly suitable for large-aperture systems. This technology is expected to be applicable to various fields, including radio astronomy, geo-environmental assessment, and radar systems.

  6. PAMM header will be provided by the publisher Block and joint Hmatrix preconditioners for the Oseen equations

    E-Print Network [OSTI]

    Le Borne, Sabine

    PAMM header will be provided by the publisher Block and joint H­matrix preconditioners in the literature exploit the block structure of the problem to construct block diagonal or block triangular for the linear systems on the block diagonal as well as for the Schur complement are available. We will construct

  7. CO2 Saline Storage Demonstration in Colorado Sedimentary Basins: Applied Studies in Reservoir Assessment and Dynamic Processes Affecting Industrial Operations

    SciTech Connect (OSTI)

    Nummedal, Dag; Sitchler, Alexis; McCray, John; Mouzakis, Katherine; Glossner, Andy; Mandernack, Kevin; Gutierrez, Marte; Doran, Kevin; Pranter, Matthew; Rybowiak, Chris

    2012-09-30T23:59:59.000Z

    This multitask research project was conducted in anticipation of a possible future increase in industrial efforts at CO2 storage in Colorado sedimentary basins. Colorado is already the home to the oldest Rocky Mountain CO2 storage site, the Rangely Oil Field, where CO2-EOR has been underway since the 1980s. The Colorado Geological Survey has evaluated storage options statewide, and as part of the SW Carbon Sequestration Partnership the Survey, is deeply engaged in and committed to suitable underground CO2 storage. As a more sustainable energy industry is becoming a global priority, it is imperative to explore the range of technical options available to reduce emissions from fossil fuels. One such option is to store at least some emitted CO2 underground. In this NETL-sponsored CO2 sequestration project, the Colorado School of Mines and our partners at the University of Colorado have focused on a set of the major fundamental science and engineering issues surrounding geomechanics, mineralogy, geochemistry and reservoir architecture of possible CO2 storage sites (not limited to Colorado). Those are the central themes of this final report and reported below in Tasks 2, 3, 4, and 6. Closely related to these reservoir geoscience issues are also legal, environmental and public acceptance concerns about pore space accessibility—as a precondition for CO2 storage. These are addressed in Tasks 1, 5 and 7. Some debates about the future course of the energy industry can become acrimonius. It is true that the physics of combustion of hydrocarbons makes it impossible for fossil energy to attain a carbon footprint anywhere nearly as low as that of renewables. However, there are many offsetting benefits, not the least that fossil energy is still plentiful, it has a global and highly advanced distribution system in place, and the footprint that the fossil energy infrastructure occupies is orders of magnitude smaller than renewable energy facilities with equivalent energy capacity. Finally, inexpensive natural gas here in North America is pushing coal for electricity generation off the market, thus reducing US CO2 emissions faster than any other large industrialized nation. These two big factors argue for renewed efforts to find technology solutions to reduce the carbon footprint (carbon dioxide as well as methane and trace gases) of conventional and unconventional oil and gas. One major such technology component is likely to be carbon capture, utilization and storage.

  8. Building Blocks for Mobile Games : A multiplayer framework for App Inventor for Android

    E-Print Network [OSTI]

    Magnuson, Bill

    2010-01-01T23:59:59.000Z

    Building Blocks for Mobile Games is a client-server multiplayer game-building-framework for the App Inventor for Android platform. The Building Blocks for Mobile Games multiplayer framework includes an App Inventor component ...

  9. Kinematically consistent, elastic block model for the eastern Mediterranean constrained by GPS measurements

    E-Print Network [OSTI]

    Lawrence, Shawn A. (Shawn Adam), 1975-

    2003-01-01T23:59:59.000Z

    I use a Global Positioning System (GPS) velocity field to constrain block models of the eastern Mediterranean and surrounding regions that account for the angular velocities of constituent blocks and elastic strain ...

  10. Block copolymer photonic crystals : towards self-assembled active optical elements

    E-Print Network [OSTI]

    Yoon, Jongseung

    2006-01-01T23:59:59.000Z

    Block copolymers have proven to be a unique materials platform for easily fabricated large-area photonic crystals. While the basic concept of block copolymer based photonic band gap materials has been well demonstrated, ...

  11. Effect of polymer chemistry on globular protein–polymer block copolymer self-assembly

    E-Print Network [OSTI]

    Chang, Dongsook

    Bioconjugates of the model red fluorescent protein mCherry and synthetic polymer blocks with different hydrogen bonding functionalities show that the chemistry of the polymer block has a large effect on both ordering ...

  12. Flow controlled solvent vapor annealing of block copolymers for lithographic applications

    E-Print Network [OSTI]

    Gotrik, Kevin Willy

    2013-01-01T23:59:59.000Z

    Self-assembly of block copolymer thin-films may provide an inexpensive alternative to patterning lithographic features below the resolution limits of traditional optical methods. Block copolymers (BCPs) are polymers made ...

  13. aqueous di-block copolymers: Topics by E-print Network

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

    PHT. Poly(3-hexylthiophene)-b-polystyrene di-block copolymer McCullough, Richard D. 2 FREE ENERGY CALCULATIONS FOR DI-BLOCK COPOLYMERS Biology and Medicine Websites Summary:...

  14. Characterization of thick 4H-SiC hot-wall CVD layers

    SciTech Connect (OSTI)

    Paisley, M.J.; Irvine, K.G.; Kordina, O.; Singh, R.; Palmour, J.W.; Carter, C.H. Jr.

    1999-07-01T23:59:59.000Z

    Epitaxial 4H-SiC layers suitable for high power devices have been grown in a hot-wall chemical-vapor deposition (CVD) system. These layers were subsequently characterized for many parameters important in device development and production. The uniformity of both thickness and doping is presented. Doping trends vs. temperature and growth rate is shown for the p-type dopant used. The n-type dopant drops in concentration with increasing temperature or increasing growth rate. In contrast, the p-type dopant increases in concentration with decreasing temperature or increasing growth rate. A simple descriptive model for this behavior is presented. The outcome from capacitance-voltage and SIMS measurements demonstrate that transitions from n to n{sup {minus}}, or p to p{sup {minus}}, and even n to p levels can be made quickly without adjustment to growth conditions. The ability to produce sharp transitions without process changes avoids degrading the resulting surface morphology or repeatability of the process. Avoiding process changes is particularly important in growth of thick layers since surface roughness tends to increase with layer thickness. Device results from diodes producing two different blocking voltages in excess of 5 kV is also shown. The higher voltage diodes exhibited a breakdown behavior which was near the theoretical limit for the epitaxial layer thickness and doping level grown.

  15. Structural changes in block copolymer solution under shear flow as determined by nonequilibrium molecular dynamics

    E-Print Network [OSTI]

    Igor Rychkov; Kenichi Yoshikawa

    2003-10-06T23:59:59.000Z

    A nonequilibrium molecular dynamics computer simulation on microsegregated solutions of symmetrical diblock copolymers is reported. As the polymer concentration increases, the system undergoes phase transitions in the following order: body centered cubic (BCC) micelles, hexagonal (HEX) cylinders, gyroid (GYR) bicontinuous networks, and lamellae (L), which are the same morphologies that have been reported for block copolymer melts. Structural classification is based on the patterns of the anisotropic static structure factor and characteristic 3-dimensional images. The systems in the BCC micellar ($\\rho\\sigma^{3}=0.3$) and HEX cylindrical ($\\rho\\sigma^{3}=0.4$) phases were then subjected to a steady planar shear flow. In weak shear flow, the segregated domains in both systems tend to rearrange into sliding parallel close-packed layers with their normal in the direction of the shear gradient. At higher shear rates both systems adopt a perpendicular lamellar structure with the normal along the neutral direction. A further increase in the shear rate results in a decrease in lamellar spacing without any further structural transitions. Two critical shear rate values that correspond to the demarcation of different structural behaviors were found.

  16. Layer-by-Layer Characterization of a Model Biofuel Cell Anode by (in Situ) Vibrational Spectroscopy

    E-Print Network [OSTI]

    Brolo, Alexandre G.

    Layer-by-Layer Characterization of a Model Biofuel Cell Anode by (in Situ) Vibrational Spectroscopy during the construction of a model biofuel cell anode. The model anode was a layered structure formedDH to the CB layer confirmed successful enzyme immobilization. 1. Introduction Biofuel cells use microorganisms

  17. Overcoming the Boundary Layer Turbulence at Dome C: Ground-Layer Adaptive Optics versus Tower

    E-Print Network [OSTI]

    Ashley, Michael C. B.

    Overcoming the Boundary Layer Turbulence at Dome C: Ground-Layer Adaptive Optics versus Tower T the boundary layer: mounting a telescope on a tower that physically puts it above the turbulent layer such a goal, two solutions can be proposed. The most intuitive one is to place a telescope on a tower

  18. Dense, layered membranes for hydrogen separation

    DOE Patents [OSTI]

    Roark, Shane E.; MacKay, Richard; Mundschau, Michael V.

    2006-02-21T23:59:59.000Z

    This invention provides hydrogen-permeable membranes for separation of hydrogen from hydrogen-containing gases. The membranes are multi-layer having a central hydrogen-permeable layer with one or more catalyst layers, barrier layers, and/or protective layers. The invention also relates to membrane reactors employing the hydrogen-permeable membranes of the invention and to methods for separation of hydrogen from a hydrogen-containing gas using the membranes and reactors. The reactors of this invention can be combined with additional reactor systems for direct use of the separated hydrogen.

  19. SPEK: A Storage Performance Evaluation Kernel Module for Block Level Storage Systems

    E-Print Network [OSTI]

    He, Xubin "Ben"

    SPEK: A Storage Performance Evaluation Kernel Module for Block Level Storage Systems Ming Zhang Cookeville, TN 38505, USA hexb@tntech.edu Abstract In this paper we introduce SPEK (Storage Performance storage systems at block level. It can be used for both DAS (Direct Attached Storage) and block level

  20. Building Our Skills Inside and Out Block play is an essential part of our

    E-Print Network [OSTI]

    de Lijser, Peter

    BLOCK PLAY Building Our Skills Inside and Out #12;Block play is an essential part of our curriculum and gain a deeper understanding of math concepts by building towers, bridges and buildings. #12;Math in Block Play As children's ideas and building skills grow more complex, designs and patterns emerge. #12

  1. Dead Block Replacement and Bypass with a Sampling Predictor Daniel A. Jimenez

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Dead Block Replacement and Bypass with a Sampling Predictor Daniel A. Jim´enez Department of Computer Science The University of Texas at San Antonio Abstract We present a cache replacement and bypass policy driven by dead block prediction. A block is considered dead is it will be replaced before

  2. Rate Shaping by Block Dropping for Transmission of MPEGprecoded Video over Channels of Dynamic Bandwidth

    E-Print Network [OSTI]

    Zeng, Wenjun "Kevin"

    ) and much better visual quality than conventional ap­ proaches. We also show that by jointly dropping blocksRate Shaping by Block Dropping for Transmission of MPEG­precoded Video over Channels of Dynamic of the compressed video in cases that the network capacity is reduced. This pa­ per proposes a novel block

  3. On Loewy lengths of blocks (joint work with S. Koshitani and B. Klshammer)

    E-Print Network [OSTI]

    On Loewy lengths of blocks (joint work with S. Koshitani and B. Külshammer) Benjamin Sambale, FSU Jena March 26, 2013 Benjamin Sambale On Loewy lengths of blocks #12;Notation G ­ finite group p ­ prime number F ­ algebraically closed field of characteristic p B ­ block of FG J(B) ­ Jacobson radical of B

  4. A Rectilinear-Monotone Polygonal Fault Block Model for Fault-Tolerant Minimal Routing

    E-Print Network [OSTI]

    Wang, Dajin

    ]. In rectangular model, all faulty nodes are grouped in dis- jointed, rectangular areas, called fault blocksA Rectilinear-Monotone Polygonal Fault Block Model for Fault-Tolerant Minimal Routing in Mesh Dajin Wang, Member, IEEE Abstract--We propose a new fault block model, Minimal-Connected-Component (MCC

  5. Joint block-based video source/channel coding for packet-switched networks

    E-Print Network [OSTI]

    Pappas, Thrasyvoulos N.

    Joint block-based video source/channel coding for packet-switched networks R. 0. Hindsa, T. N. Keywords: Video coding, Packet loss, Internet, Joint source/channel coding 1. INTRODUCTION BlockD-336 600 Mountain Avenue Murray Hill, NJ 07974-0636 USA ABSTRACT Block-based video coders rely

  6. Joint channel estimation and decoding of root LDPC codes in block-fading channels

    E-Print Network [OSTI]

    Andriyanova, Iryna

    Joint channel estimation and decoding of root LDPC codes in block-fading channels Iryna Andriyanova receivers for joint decoding and channel-state estimation for transmission on block-fading chan- nels of root-LDPC-coded signals. Root-LDPC codes are known to be most performant codes for block

  7. MICROELECTRONIC ENGINEERING RESEARCH CONFERENCE 2003 1 Low Complexity Gaussian Mixture Model-based Block

    E-Print Network [OSTI]

    is jointly Gaussian, hence Lloyd- Max non-uniform scalar quantisers are used in traditional block quan-based Block Quantisation of Images Stephen So and Kuldip K. Paliwal Abstract--In this paper, we present a low complexity version of Gaus- sian mixture model-based block quantisation for images. The latter coding method

  8. TTDTTi'^'/O^ Riso-R-490 Total-Count Calibration Blocks

    E-Print Network [OSTI]

    I et · ·Ji 2 TTDTTi'^'/O^ Riso-R-490 Total-Count Calibration Blocks for Use in Uranium Exploration-COUNT CALIBRATION BLOCKS FOR USE IN URANIUM EXPLORATION L. Løvborg Abstract. Transportable calibration blocks; CALIBRATION? CALIBRATION STANDARDS? CONCRETES; EXPLORATION; SCINTILLATION COUNTERS; URANIUM UDC 539

  9. Properties of concrete paving blocks made with waste marble Osman Gencela,f,*, Cengiz Ozelb

    E-Print Network [OSTI]

    North Texas, University of

    Properties of concrete paving blocks made with waste marble Osman Gencela,f,*, Cengiz Ozelb , Fuat: Concrete paving blocks Recycled aggregate Marble waste Concrete wear a b s t r a c t Marble industry. Waste marble is well usable instead of the usual aggregate in the concrete paving block production. Ã?

  10. BLOCK COMPRESSED SENSING OF NATURAL IMAGES Dept. of Electrical Engineering and Electronics,

    E-Print Network [OSTI]

    imaging systems, natural images are often first sam- pled into the digital format at a higher rateBLOCK COMPRESSED SENSING OF NATURAL IMAGES Lu Gan Dept. of Electrical Engineering and Electronics for natural images, where image acquisi- tion is conducted in a block-by-block manner through the same oper

  11. AGU Monograph, Plate Boundary Zones, in press. Page 1 Crustal Block Rotations and Plate Coupling

    E-Print Network [OSTI]

    McCaffrey, Robert

    AGU Monograph, Plate Boundary Zones, in press. Page 1 Crustal Block Rotations and Plate Coupling that considering both block rotations and fault locking significantly improves the fit to the data over models by locking on #12;AGU Monograph, Plate Boundary Zones, in press. Page 2 block-bounding faults and apply

  12. Nanostructures from POSS-Grafted Block Copolymer Precursors Seung B. Chuna

    E-Print Network [OSTI]

    Mather, Patrick T.

    .S.A. ABSTRACT A new method to prepare novel nanocomposites has been studied in which a polyhedral oligomeric-organic hybrid copolymer (POSS-g- PI-block-PS). PS-block-PI copolymers (SI) were synthesized via anionic is to obtain organic/inorganic hybrid block copolymers and to prepare thin coatings that have well- ordered

  13. Fixed Block Compression Boosting in FM-Indexes

    E-Print Network [OSTI]

    Kärkkäinen, Juha

    2011-01-01T23:59:59.000Z

    A compressed full-text self-index occupies space close to that of the compressed text and simultaneously allows fast pattern matching and random access to the underlying text. Among the best compressed self-indexes, in theory and in practice, are several members of the FM-index family. In this paper, we describe new FM-index variants that combine nice theoretical properties, simple implementation and improved practical performance. Our main result is a new technique called fixed block compression boosting, which is a simpler and faster alternative to optimal compression boosting and implicit compression boosting used in previous FM-indexes.

  14. Blocking long term consolidation of extinction in rats with puromycin

    E-Print Network [OSTI]

    Broussard, William Joseph

    1972-01-01T23:59:59.000Z

    OF SCIBNC August 1972 )major Subject: Psychology BLOCKING LONG TERM CONSOLIDATION OF EXTINCTION IN RATS WI ' H PUROMYCIN A Thesis WILLIAM JOSEPH BROUSSARD Approved as to style and content by~ c'F, ~ g, Chairman of Co j. ttee H o e ar men Mem er..., snd Joseph . "lagyvary, this manuscript would have been considerably longer in taking shape. The author e. ,pecially wishes to call attention to his wife. If tolerance, patience, and encourageme. , t can be considered part of a higher education...

  15. Non-crosslinked, amorphous, block copolymer electrolyte for batteries

    DOE Patents [OSTI]

    Mayes, Anne M.; Ceder, Gerbrand; Chiang, Yet-Ming; Sadoway, Donald R.; Aydinol, Mehmet K.; Soo, Philip P.; Jang, Young-Il; Huang, Biying

    2006-04-11T23:59:59.000Z

    Solid battery components are provided. A block copolymeric electrolyte is non-crosslinked and non-glassy through the entire range of typical battery service temperatures, that is, through the entire range of at least from about 0.degree. C. to about 70.degree. C. The chains of which the copolymer is made each include at least one ionically-conductive block and at least one second block immiscible with the ionically-conductive block. The chains form an amorphous association and are arranged in an ordered nanostructure including a continuous matrix of amorphous ionically-conductive domains and amorphous second domains that are immiscible with the ionically-conductive domains. A compound is provided that has a formula of Li.sub.xM.sub.yN.sub.zO.sub.2. M and N are each metal atoms or a main group elements, and x, y and z are each numbers from about 0 to about 1. y and z are chosen such that a formal charge on the M.sub.yN.sub.z portion of the compound is (4-x). In certain embodiments, these compounds are used in the cathodes of rechargeable batteries. The present invention also includes methods of predicting the potential utility of metal dichalgogenide compounds for use in lithium intercalation compounds. It also provides methods for processing lithium intercalation oxides with the structure and compositional homogeneity necessary to realize the increased formation energies of said compounds. An article is made of a dimensionally-stable, interpenetrating microstructure of a first phase including a first component and a second phase, immiscible with the first phase, including a second component. The first and second phases define interphase boundaries between them, and at least one particle is positioned between a first phase and a second phase at an interphase boundary. When the first and second phases are electronically-conductive and ionically-conductive polymers, respectively, and the particles are ion host particles, the arrangement is an electrode of a battery.

  16. Bilateral infraorbital nerve blocks decrease postoperative pain but do not reduce time to discharge following outpatient nasal surgery

    E-Print Network [OSTI]

    2009-01-01T23:59:59.000Z

    induction of general anesthesia. All subjects underwent anerve block under general anesthesia on consumption of iso?block versus general anesthesia for hand and wrist day-case

  17. Deuteration Can Impact Micellization Pressure and Cloud Pressure of Polystyrene-block-polybutadiene and Polystyrene-block-polyisoprene in Compressible Propane

    SciTech Connect (OSTI)

    Winoto, Winoto [University of Wyoming, Laramie; Shen, Youqin [University of Wyoming, Laramie; Radosz, Maciej [University of Wyoming, Laramie; Hong, Kunlun [ORNL; Mays, Jimmy [ORNL

    2009-01-01T23:59:59.000Z

    The deuterated homopolymers and their corresponding polystyrene-block-polybutadiene and polystyrene-block-polyisoprene copolymers require lower cloud pressures than their hydrogenous analogues to dissolve in a compressible alkane solvent, such as propane. For symmetric diblocks, deuteration reduces the micellization pressure. By contrast, for asymmetric diblocks with a long diene block relative to the styrene block, deuteration can increase the micellization pressure. All in all, however, the deuteration effects, while measurable, do not qualitatively change the principal diblock properties in compressible propane solutions, such as pressure-induced micelle decomposition, micelle formation and micelle size, and their temperature dependence. Therefore, isotope labeling should be a useful approach to neutron-scattering characterization for styrene-diene block copolymers in compressible alkane systems.

  18. Ray Theory for a Locally Layered Random Medium K. S lna G. Papanicolaou y

    E-Print Network [OSTI]

    Papanicolaou, George C.

    variations in the medium parameters. The pulse is generated by a point source and the medium is modeled the source and the point of observation. The ray is determined by high frequency asymptotics (geometrical is motivated by wave propagation in sedimentary rock. Here the sedimentary cycles produce structures

  19. Combustion fronts in porous media with two layers Steve Schecter

    E-Print Network [OSTI]

    Schecter, Stephen

    Combustion fronts in porous media with two layers layer 1 layer 2 Steve Schecter North Carolina Subject: Propagation of a combustion front through a porous medium with two parallel layers having different properties. · Each layer admits a traveling combustion wave. · The layers are coupled by heat

  20. Method to fabricate layered material compositions

    DOE Patents [OSTI]

    Fleming, James G. (Albuquerque, NM); Lin, Shawn-Yu (Albuquerque, NM)

    2002-01-01T23:59:59.000Z

    A new class of processes suited to the fabrication of layered material compositions is disclosed. Layered material compositions are typically three-dimensional structures which can be decomposed into a stack of structured layers. The best known examples are the photonic lattices. The present invention combines the characteristic features of photolithography and chemical-mechanical polishing to permit the direct and facile fabrication of, e.g., photonic lattices having photonic bandgaps in the 0.1-20.mu. spectral range.

  1. Method to fabricate layered material compositions

    DOE Patents [OSTI]

    Fleming, James G.; Lin, Shawn-Yu

    2004-11-02T23:59:59.000Z

    A new class of processes suited to the fabrication of layered material compositions is disclosed. Layered material compositions are typically three-dimensional structures which can be decomposed into a stack of structured layers. The best known examples are the photonic lattices. The present invention combines the characteristic features of photolithography and chemical-mechanical polishing to permit the direct and facile fabrication of, e.g., photonic lattices having photonic bandgaps in the 0.1-20.mu. spectral range.

  2. Manganese containing layer for magnetic recording media

    DOE Patents [OSTI]

    Lambeth, David N. (Pittsburgh, PA); Lee, Li-Lien (Santa Clara, CA); Laughlin, David E. (Pittsburgh, PA)

    1999-01-01T23:59:59.000Z

    The present invention provides for a magnetic recording media incorporating Mn-containing layers between a substrate and a magnetic layer to provide media having increased coercivity and lower noise. The Mn-containing layer can be incorporated in a rotating, translating or stationary recording media to operate in conjunction with magnetic transducing heads for recording and reading of magnetic data, as well as other applications. The magnetic recording medium of the invention preferably includes a Co or Co alloy film magnetic layer, and Mn-containing layer, preferably comprised of VMn, TiMn, MnZn, CrMnMo, CrMnW, CrMnV, and CrMnTi, and most preferably a CrMn alloy, disposed between the substrate and the magnetic layer to promote an epitaxial crystalline structure in the magnetic layer. The medium can further include seed layers, preferably polycrystalline MgO for longitudinal media, underlayers, and intermediate layers. Underlayers and intermediate layers are comprised of materials having either an A2 structure or a B2-ordered crystalline structure disposed between the seed layer and the magnetic layer. Materials having an A2 structure are preferably Cr or Cr alloys, such as CrV, CrMo, CrW and CrTi. Materials having a B2-ordered structure having a lattice constant that is substantially comparable to that of Cr, such as those preferably selected from the group consisting of NiAl, AILCo, FeAl, FeTi, CoFe, CoTi, CoHf, CoZr, NiTi, CuBe, CuZn, A-LMn, AlRe, AgMg, and Al.sub.2 FeMn.sub.2, and is most preferably FeAl or NiAl.

  3. Ultraviolet emission from a multi-layer graphene/MgZnO/ZnO light-emitting diode

    SciTech Connect (OSTI)

    Kang, Jang-Won; Choi, Yong-Seok; Goo Kang, Chang; Hun Lee, Byoung [School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 500-712 (Korea, Republic of); Kim, Byeong-Hyeok [Department of Nanobio Materials and Electronics, Gwangju Institute of Science and Technology, Gwangju 500-712 (Korea, Republic of); Tu, C. W. [Department of Electrical and Computer Engineering, University of California, San Diego, La Jolla, California 92093-0407 (United States); Park, Seong-Ju, E-mail: sjpark@gist.ac.kr [School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 500-712 (Korea, Republic of); Department of Nanobio Materials and Electronics, Gwangju Institute of Science and Technology, Gwangju 500-712 (Korea, Republic of)

    2014-02-03T23:59:59.000Z

    We report on ultraviolet emission from a multi-layer graphene (MLG)/MgZnO/ZnO light-emitting diodes (LED). The p-type MLG and MgZnO in the MLG/MgZnO/ZnO LED are used as transparent hole injection and electron blocking layers, respectively. The current-voltage characteristics of the MLG/MgZnO/ZnO LED show that current transport is dominated by tunneling processes in the MgZnO barrier layer under forward bias conditions. The holes injected from p-type MLG recombine efficiently with the electrons accumulated in ZnO, and the MLG/MgZnO/ZnO LED shows strong ultraviolet emission from the band edge of ZnO and weak red-orange emission from the deep levels of ZnO.

  4. Sandia National Laboratories: atomic layer deposition

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

    layer deposition Combining 'Tinkertoy' Materials with Solar Cells for Increased Photovoltaic Efficiency On December 4, 2014, in Energy, Materials Science, News, News & Events,...

  5. Enhanced Densification of SDC Barrier Layers

    SciTech Connect (OSTI)

    Hardy, John S.; Templeton, Jared W.; Lu, Zigui; Stevenson, Jeffry W.

    2011-09-12T23:59:59.000Z

    This technical report explores the Enhanced Densification of SCD Barrier Layers A samaria-doped ceria (SDC) barrier layer separates the lanthanum strontium cobalt ferrite (LSCF) cathode from the yttria-stabilized zirconia (YSZ) electrolyte in a solid oxide fuel cell (SOFC) to prevent the formation of electrically resistive interfacial SrZrO{sub 3} layers that arise from the reaction of Sr from the LSCF with Zr from the YSZ. However, the sintering temperature of this SDC layer must be limited to {approx}1200 C to avoid extensive interdiffusion between SDC and YSZ to form a resistive CeO{sub 2}-ZrO{sub 2} solid solution. Therefore, the conventional SDC layer is often porous and therefore not as impervious to Sr-diffusion as would be desired. In the pursuit of improved SOFC performance, efforts have been directed toward increasing the density of the SDC barrier layer without increasing the sintering temperature. The density of the SDC barrier layer can be greatly increased through small amounts of Cu-doping of the SDC powder together with increased solids loading and use of an appropriate binder system in the screen print ink. However, the resulting performance of cells with these barrier layers did not exhibit the expected increase in accordance with that achieved with the prototypical PLD SDC layer. It was determined by XRD that increased sinterability of the SDC also results in increased interdiffusivity between the SDC and YSZ, resulting in formation of a highly resistive solid solution.

  6. Electronic Transport in Few-layer Graphene

    E-Print Network [OSTI]

    Zhao, Zeng

    2013-01-01T23:59:59.000Z

    in Charge Neutral Bilayer Graphene Introduction In thisstudy on heterogeneous graphene devices in a differentto probe few layer graphene to determine their dependence on

  7. Organic photovoltaic cells utilizing ultrathin sensitizing layer

    DOE Patents [OSTI]

    Forrest, Stephen R. (Ann Arbor, MI); Yang, Fan (Piscataway, NJ); Rand, Barry P. (Somers, NY)

    2011-09-06T23:59:59.000Z

    A photosensitive device includes a plurality of organic photoconductive materials disposed in a stack between a first electrode and a second electrode, including a first continuous layer of donor host material, a second continuous layer of acceptor host material, and at least one other organic photoconductive material disposed as a plurality of discontinuous islands between the first continuous layer and the second continuous layer. Each of these other photoconductive materials has an absorption spectra different from the donor host material and the acceptor host material. Preferably, each of the discontinuous islands consists essentially of a crystallite of the respective organic photoconductive material, and more preferably, the crystallites are nanocrystals.

  8. Nanomanufacturing : nano-structured materials made layer-by-layer.

    SciTech Connect (OSTI)

    Cox, James V.; Cheng, Shengfeng; Grest, Gary Stephen; Tjiptowidjojo, Kristianto (University of New Mexico); Reedy, Earl David, Jr.; Fan, Hongyou; Schunk, Peter Randall; Chandross, Michael Evan; Roberts, Scott A.

    2011-10-01T23:59:59.000Z

    Large-scale, high-throughput production of nano-structured materials (i.e. nanomanufacturing) is a strategic area in manufacturing, with markets projected to exceed $1T by 2015. Nanomanufacturing is still in its infancy; process/product developments are costly and only touch on potential opportunities enabled by growing nanoscience discoveries. The greatest promise for high-volume manufacturing lies in age-old coating and imprinting operations. For materials with tailored nm-scale structure, imprinting/embossing must be achieved at high speeds (roll-to-roll) and/or over large areas (batch operation) with feature sizes less than 100 nm. Dispersion coatings with nanoparticles can also tailor structure through self- or directed-assembly. Layering films structured with these processes have tremendous potential for efficient manufacturing of microelectronics, photovoltaics and other topical nano-structured devices. This project is designed to perform the requisite R and D to bring Sandia's technology base in computational mechanics to bear on this scale-up problem. Project focus is enforced by addressing a promising imprinting process currently being commercialized.

  9. Carrier capture dynamics of single InGaAs/GaAs quantum-dot layers

    SciTech Connect (OSTI)

    Chauhan, K. N.; Riffe, D. M.; Everett, E. A.; Kim, D. J.; Yang, H. [Physics Department, Utah State University, Logan, Utah 84322-4415 (United States)] [Physics Department, Utah State University, Logan, Utah 84322-4415 (United States); Shen, F. K. [Center for Surface Analysis and Applications, Utah State University, Logan, Utah 84322-4415 (United States)] [Center for Surface Analysis and Applications, Utah State University, Logan, Utah 84322-4415 (United States)

    2013-05-28T23:59:59.000Z

    Using 800 nm, 25-fs pulses from a mode locked Ti:Al{sub 2}O{sub 3} laser, we have measured the ultrafast optical reflectivity of MBE-grown, single-layer In{sub 0.4}Ga{sub 0.6}As/GaAs quantum-dot (QD) samples. The QDs are formed via two-stage Stranski-Krastanov growth: following initial InGaAs deposition at a relatively low temperature, self assembly of the QDs occurs during a subsequent higher temperature anneal. The capture times for free carriers excited in the surrounding GaAs (barrier layer) are as short as 140 fs, indicating capture efficiencies for the InGaAs quantum layer approaching 1. The capture rates are positively correlated with initial InGaAs thickness and annealing temperature. With increasing excited carrier density, the capture rate decreases; this slowing of the dynamics is attributed to Pauli state blocking within the InGaAs quantum layer.

  10. Layer-by-Layer Assembly of a pH-Responsive and Electrochromic Thin Film

    E-Print Network [OSTI]

    Schmidt, Daniel J.

    This article summarizes an experiment on thin-film fabrication with layer-by-layer assembly that is appropriate for undergraduate laboratory courses. The purpose of this experiment is to teach students about self-assembly ...

  11. An ultra-thin buffer layer for Ge epitaxial layers on Si

    SciTech Connect (OSTI)

    Kawano, M.; Yamada, S.; Tanikawa, K.; Miyao, M.; Hamaya, K. [Department of Electronics, Kyushu University, 744 Motooka, Fukuoka 819-0395 (Japan)] [Department of Electronics, Kyushu University, 744 Motooka, Fukuoka 819-0395 (Japan); Sawano, K. [Advanced Research Laboratories, Tokyo City University, 8-15-1 Todoroki, Tokyo 158-0082 (Japan)] [Advanced Research Laboratories, Tokyo City University, 8-15-1 Todoroki, Tokyo 158-0082 (Japan)

    2013-03-25T23:59:59.000Z

    Using an Fe{sub 3}Si insertion layer, we study epitaxial growth of Ge layers on a Si substrate by a low-temperature molecular beam epitaxy technique. When we insert only a 10-nm-thick Fe{sub 3}Si layer in between Si and Ge, epitaxial Ge layers can be obtained on Si. The detailed structural characterizations reveal that a large lattice mismatch of {approx}4% is completely relaxed in the Fe{sub 3}Si layer. This means that the Fe{sub 3}Si layers can become ultra-thin buffer layers for Ge on Si. This method will give a way to realize a universal buffer layer for Ge, GaAs, and related devices on a Si platform.

  12. Surface engineering using layer-by-layer assembly of pH-sensitive polymers and nanoparticles

    E-Print Network [OSTI]

    Lee, Daeyeon

    2007-01-01T23:59:59.000Z

    Surface engineering of a variety of materials including colloidal particles and porous membranes has been achieved by using layer-by-layer assembly of pH-sensitive polymers and nanoparticles. In the first part of this ...

  13. Amperometric Glucose Biosensor by Means of Electrostatic Layer-by-layer Adsorption onto Electrospun Polyaniline Fibers

    E-Print Network [OSTI]

    Shin, Young J.

    2010-07-14T23:59:59.000Z

    were formed and collected by electrospinning. Glucose oxidase was immobilized onto these fibers using an electrostatic layer-by-layer adsorption technique. In this method, poly(diallyldimethylammonium chloride) was used as the counter ion source...

  14. automated spin-assisted layer-by-layer: Topics by E-print Network

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

    Thomas 2005-01-01 16 Layer-by-Layer Assembly of a pH-Responsive and Electrochromic Thin Film MIT - DSpace Summary: This article summarizes an experiment on thin-film fabrication...

  15. Engineering the electrochromism and ion conduction of layer-by-layer assembled films

    E-Print Network [OSTI]

    DeLongchamp, Dean M. (Dean Michael), 1975-

    2003-01-01T23:59:59.000Z

    This work applies the processing technique of layer-by-layer (LBL) assembly to the creation and development of new electrochemically active materials. Elements of the thin-film electrochromic cell were chosen as a particular ...

  16. Antimicrobial Activity of Cationic Antiseptics in Layer-by-Layer Thin Film Assemblies

    E-Print Network [OSTI]

    Dvoracek, Charlene M.

    2010-07-14T23:59:59.000Z

    Layer-by-layer (LbL) assembly has proven to be a powerful technique for assembling thin films with a variety of properties including electrochromic, molecular sensing, oxygen barrier, and antimicrobial. LbL involves the deposition of alternating...

  17. Sealed Battery Block Provided With A Cooling System

    DOE Patents [OSTI]

    Verhoog, Roelof (Bordeaux, FR); Barbotin, Jean-Loup (Pompignac, FR)

    1999-11-16T23:59:59.000Z

    The present invention relates to a sealed battery block operating at a pressure of at least 1 bar relative, the battery including a container made of a plastics material and made up of a lid and of a case subdivided into wells by at least one partition, said battery being provided with a cooling system including two cheek plates made of a plastics material and co-operating with the outside faces of respective ones of two opposite walls of said case, each cheek plate co-operating with the corresponding wall to define a compartment provided with a plurality of ribs forming baffles for fluid flow purposes, and with an inlet orifice and an outlet orifice for the fluid, said battery being characterized in that each of said ribs extends in a direction that forms an angle relative to the plane of said partition lying in the range 60.degree. to 90.degree..

  18. The Evolving Block Universe and the Meshing Together of Times

    E-Print Network [OSTI]

    George F R Ellis

    2014-07-27T23:59:59.000Z

    It is proposed that spacetime should be regarded as an evolving block universe, bounded to the future by the present time, which continually extends to the future. This future boundary is defined at each time by measuring proper time along Ricci eigenlines from the start of the universe. A key point is that physical reality can be represented at many different scales: hence the passage of times may be seen as different at different scales, with quantum gravity determining the evolution of space time itself but quantum field theory determining the evolution of events within spacetime .The fundamental issue then arises as to how the effective times at different scales mesh together, leading to the concept so global and local times.

  19. The Pelagian Block (central Mediterranean): Exploration and new opportunities

    SciTech Connect (OSTI)

    Zappaterra, E. [Chevron Co., London (United Kingdom)

    1995-08-01T23:59:59.000Z

    The Pelagian Block, extending from eastern Tunisia to offshore western Libya and northward to Malta and Sicily, is a complex foreland area structurally active since the Carboniferous, that separates western North Africa from southern Italy. The north (Sicily) and central parts of the Pelagian Block contain Triassic-Lower Jurassic peritidal carbonates with rare evaporites; Middle Jurassic-Eocene pelagic carbonates, and paralic to marine clastics of Oligocene to Pleistocene age, with Messinian evaporites. The Middle Jurassic/Eocene platform to pelagic carbonates of Sicily are gradually replaced southward by basin margin, marine to paralic carbonates and clastics. In eastern Tunisia, these rocks overlie Triassic-Lower Jurasic evaporites. Principal petroleum resources occur offshore SE Sicily, offshore Tunisia and in adjacent Libyan waters. The largest oil fields are Bouri (800 MMB recoverable reserves) and Ashtart (recoverable reserves of 250 MMB). The largest gas field is Miskar (recoverable reserves of 800 BCF). Smaller accumulations are distributed throughout the region. New oil discoveries, ranging in size from 8 MMB to 50 MMB, have recently been made onshore and in the shallow offshore. Proven and potential source beds for hydrocarbons occur in various paleotectonic settings: anoxic lagoons formed in the early continental rifting stages (Triassic/Liassic organic rich units of SE Sicily); subcontinental/paralic coals and shales (Lower Cretaceous of Tunisia); and deeper water anoxic basins (late Mesozoic and Tertiary organic sequences). Additional exploration opportunities are expected in undrilled or sparsely drilled acreage, with traditional plays similar to those tested in the past; or in new plays directed to the exploration of new reservoir objectives.

  20. Excited State Interactions in Calix[4]arene-Perylene Bisimide Dye Conjugates: Global and Target Analysis of Supramolecular Building Blocks

    E-Print Network [OSTI]

    van Stokkum, Ivo

    Analysis of Supramolecular Building Blocks Catharina Hippius, Ivo H. M. van Stokkum, E. Zangrando,§ Rene´ M

  1. Cyclone separator having boundary layer turbulence control

    DOE Patents [OSTI]

    Krishna, Coimbatore R. (Mt. Sinai, NY); Milau, Julius S. (Port Jefferson, NY)

    1985-01-01T23:59:59.000Z

    A cyclone separator including boundary layer turbulence control that is operable to prevent undue build-up of particulate material at selected critical areas on the separator walls, by selectively varying the fluid pressure at those areas to maintain the momentum of the vortex, thereby preventing particulate material from inducing turbulence in the boundary layer of the vortical fluid flow through the separator.

  2. Steady water waves with multiple critical layers

    E-Print Network [OSTI]

    Mats Ehrnström; Joachim Escher; Erik Wahlén

    2011-04-01T23:59:59.000Z

    We construct small-amplitude periodic water waves with multiple critical layers. In addition to waves with arbitrarily many critical layers and a single crest in each period, two-dimensional sets of waves with several crests and troughs in each period are found. The setting is that of steady two-dimensional finite-depth gravity water waves with vorticity.

  3. Channel cracks in atomic-layer and molecular-layer deposited multilayer thin film coatings

    SciTech Connect (OSTI)

    Long, Rong, E-mail: rlongmech@gmail.com [Department of Mechanical Engineering, University of Alberta, Edmonton, Alberta T6G 2G8 (Canada); Department of Mechanical Engineering, University of Colorado, Boulder, Colorado 80309 (United States); Dunn, Martin L. [Department of Mechanical Engineering, University of Colorado, Boulder, Colorado 80309 (United States); Singapore University of Technology and Design, Singapore 138682 (Singapore)

    2014-06-21T23:59:59.000Z

    Metal oxide thin film coatings produced by atomic layer deposition have been shown to be an effective permeation barrier. The primary failure mode of such coatings under tensile loads is the propagation of channel cracks that penetrate vertically into the coating films. Recently, multi-layer structures that combine the metal oxide material with relatively soft polymeric layers produced by molecular layer deposition have been proposed to create composite thin films with desired properties, including potentially enhanced resistance to fracture. In this paper, we study the effects of layer geometry and material properties on the critical strain for channel crack propagation in the multi-layer composite films. Using finite element simulations and a thin-film fracture mechanics formalism, we show that if the fracture energy of the polymeric layer is lower than that of the metal oxide layer, the channel crack tends to penetrate through the entire composite film, and dividing the metal oxide and polymeric materials into thinner layers leads to a smaller critical strain. However, if the fracture energy of the polymeric material is high so that cracks only run through the metal oxide layers, more layers can result in a larger critical strain. For intermediate fracture energy of the polymer material, we developed a design map that identifies the optimal structure for given fracture energies and thicknesses of the metal oxide and polymeric layers. These results can facilitate the design of mechanically robust permeation barriers, an important component for the development of flexible electronics.

  4. Instability limits for spontaneous double layer formation

    SciTech Connect (OSTI)

    Carr, J. Jr. [Department of Physics, West Virginia University, Morgantown, West Virginia 26506 (United States) [Department of Physics, West Virginia University, Morgantown, West Virginia 26506 (United States); Department of Physics, Texas Lutheran University, Seguin, Texas 78155 (United States); Galante, M. E.; McCarren, D.; Scime, E. E.; Sears, S.; VanDervort, R. W. [Department of Physics, West Virginia University, Morgantown, West Virginia 26506 (United States)] [Department of Physics, West Virginia University, Morgantown, West Virginia 26506 (United States); Magee, R. M. [Department of Physics, West Virginia University, Morgantown, West Virginia 26506 (United States) [Department of Physics, West Virginia University, Morgantown, West Virginia 26506 (United States); TriAlpha Energy, Inc., Foothill Ranch, California 92610 (United States); Reynolds, E. [Department of Physics and Engineering, West Virginia Wesleyan, Buckhannon, West Virginia 26201 (United States)] [Department of Physics and Engineering, West Virginia Wesleyan, Buckhannon, West Virginia 26201 (United States)

    2013-11-15T23:59:59.000Z

    We present time-resolved measurements that demonstrate that large amplitude electrostatic instabilities appear in pulsed, expanding helicon plasmas at the same time as particularly strong double layers appear in the expansion region. A significant cross-correlation between the electrostatic fluctuations and fluctuations in the number of ions accelerated by the double layer electric field is observed. No correlation is observed between the electrostatic fluctuations and ions that have not passed through the double layer. These measurements confirm that the simultaneous appearance of the electrostatic fluctuations and the double layer is not simple coincidence. In fact, the accelerated ion population is responsible for the growth of the instability. The double layer strength, and therefore, the velocity of the accelerated ions, is limited by the appearance of the electrostatic instability.

  5. Electropositive surface layer MPD thruster cathodes

    SciTech Connect (OSTI)

    Chamberlain, F.R.; Kelly, A.J.; Jahn, R.G.

    1989-01-01T23:59:59.000Z

    Lithium and barium oxide have been used to generate electropositive surface layers on tungsten cathodes in low power steady state MPD thruster experiments. The electropositive surface layer decreases the cathode work function, resulting in substantial reductions in the steady state cathode operating temperature and erosion rate. Cathode temperature is reduced by 300 degrees with a lithium surface layer and by 800 degrees with a barium oxide surface layer at a 500 ampere thruster current level. These temperature reductions substantially reduce the calculated steady state evaporative erosion rate of the cathode by factors of 20 and 10,000 respectively. Cold cathode startup erosion is also reduced dramatically. The surface melting and arc cratering that is characteristic of pure tungsten cathodes does not occur with an electropositive surface layer cathode. In addition to reducing cathode erosion, the use of these materials increases thruster efficiency. 12 refs.

  6. Main Sequence Evolution with Layered Semiconvection

    E-Print Network [OSTI]

    Moore, Kevin

    2015-01-01T23:59:59.000Z

    Semiconvection - mixing that occurs in regions that are stable when considering compositional gradients, but unstable when ignoring them - is shown to have the greatest potential impact on main sequence stars with masses in the range 1.2 - 1.7 solar masses. We present the first stellar evolution calculations using a prescription for semiconvection derived from extrapolation of direct numerical simulations of double-diffusive mixing down to stellar parameters. The dominant mode of semiconvection in stars is layered semiconvection, where the layer height is an adjustable parameter analogous to the mixing length in convection. The rate of mixing across the semiconvective region is sensitively dependent on the layer height. We find that there is a critical layer height that separates weak semiconvective mixing (where evolution is well-approximated by using the Ledoux criterion) from strong semiconvective mixing (where evolution is well-approximated by using the Schwarzschild criterion). This critical layer height...

  7. GRADUATE STUDENT COURSE ASSIGNMENTS Block 1 Discrete Mathematics ---Babai Weeks 18

    E-Print Network [OSTI]

    May, J. Peter

    --- Bader Weeks 7­8 Block 5 K-theory --- May Weeks 1­2, 5­8 Block 6 Number Theory (Apprentice) --- Abert (May) (weeks 1­2, 5­8) Abouzaid, Anders (5-8), Fowler (1-2, 5-8), Kamgarpour, Smith Block 6 (Apprentice Anders 6, 5 all 8 Apprentice Mohammed Abouzaid 5 1, 5­7 (Organizer) Elizabeth Beazley 1 all 8 (Babai) Ian

  8. Community Development Block Grant/Economic Development Infrastructure Financing (CDBG/EDIF) (Oklahoma)

    Broader source: Energy.gov [DOE]

    Community Development Block Grant/Economic Development Infrastructure Financing (CDBG/EDIF) provides public infrastructure financing to help communities grow jobs, enable new business startups and...

  9. Weight Distribution of a Class of Binary Linear Block Codes Formed from RCPC Codes

    E-Print Network [OSTI]

    Shen, Yushi Dr.; Cosman, Pamela C; Milstein, Laurence B

    2006-01-01T23:59:59.000Z

    formed from convolutional codes,” IEEE Trans. Commun. , vol.terminated convolutional codes,” IEEE Trans. Inform. Theory,decoding of linear block codes and related soft- decision

  10. Weight Distribution of a Class of Binary Linear Block Codes Formed from RCPC Codes

    E-Print Network [OSTI]

    Shen, Yushi Dr.; Cosman, Pamela C; Milstein, Laurence B

    2006-01-01T23:59:59.000Z

    On the weight distribution of terminated convolutionalViterbi, “On the weight distribution of linear block codes9, SEPTEMBER 2005 Weight Distribution of a Class of Binary

  11. Synthesis and Characterization of Simultaneous Electronic and Ionic Conducting Block Copolymers for Lithium Battery Electrodes

    E-Print Network [OSTI]

    Patel, Shrayesh

    2013-01-01T23:59:59.000Z

    Copolymer: Application in Lithium Battery Electrodes. Angew.Schematic of the Proposed lithium battery electrode with aBlock Copolymers for Lithium Battery Electrodes By Shrayesh

  12. Data Partitioning for Reconfigurable Architectures with Distributed Block RAM Wenrui Gong Gang Wang Ryan Kastner

    E-Print Network [OSTI]

    Sherwood, Tim

    Data Partitioning for Reconfigurable Architectures with Distributed Block RAM Wenrui Gong Gang Wang {gong, wanggang, kastner}@ece.ucsb.edu Abstract Modern, high performance reconfigurable architectures

  13. Collapse transitions in thermosensitive multi-block copolymers: A Monte Carlo study

    SciTech Connect (OSTI)

    Rissanou, Anastassia N., E-mail: rissanou@tem.uoc.gr [Department of Mathematics and Applied Mathematics, University of Crete, GR-71003 Heraklion Crete, Greece and Archimedes Center for Analysis, Modeling and Computation, University of Crete, P.O. Box 2208, GR-71003 Heraklion Crete (Greece); Tzeli, Despoina S. [Department of Materials Science and Technology, University of Crete, GR-71003 Heraklion Crete (Greece); Anastasiadis, Spiros H. [Department of Chemistry, University of Crete, P.O. Box 2208, 710 03 Heraklion Crete (Greece); Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, GR-71110 Heraklion Crete (Greece); Bitsanis, Ioannis A. [Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, GR-71110 Heraklion Crete (Greece)

    2014-05-28T23:59:59.000Z

    Monte Carlo simulations are performed on a simple cubic lattice to investigate the behavior of a single linear multiblock copolymer chain of various lengths N. The chain of type (A{sub n}B{sub n}){sub m} consists of alternating A and B blocks, where A are solvophilic and B are solvophobic and N = 2nm. The conformations are classified in five cases of globule formation by the solvophobic blocks of the chain. The dependence of globule characteristics on the molecular weight and on the number of blocks, which participate in their formation, is examined. The focus is on relative high molecular weight blocks (i.e., N in the range of 500–5000 units) and very differing energetic conditions for the two blocks (very good—almost athermal solvent for A and bad solvent for B). A rich phase behavior is observed as a result of the alternating architecture of the multiblock copolymer chain. We trust that thermodynamic equilibrium has been reached for chains of N up to 2000 units; however, for longer chains kinetic entrapments are observed. The comparison among equivalent globules consisting of different number of B-blocks shows that the more the solvophobic blocks constituting the globule the bigger its radius of gyration and the looser its structure. Comparisons between globules formed by the solvophobic blocks of the multiblock copolymer chain and their homopolymer analogs highlight the important role of the solvophilic A-blocks.

  14. A Failure and Structural Analysis of Block Copolymer Electrolytes for Rechargeable Lithium Metal Batteries

    E-Print Network [OSTI]

    Stone, Gregory Michael

    2012-01-01T23:59:59.000Z

    for Rechargeable Lithium Metal Batteries By Gregory Michaelfor Rechargeable Lithium Metal Batteries by Gregory Michaelin rechargeable lithium metal batteries. The block copolymer

  15. Pressure Effect on the Structural Transition and Suppression of the High-Spin State in the Triple-Layer T'-La?Ni?O?

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

    Cheng, J.-G.; Zhou, J.-S.; Goodenough, J. B.; Zhou, H. D.; Matsubayashi, K.; Uwatoko, Y.; Kong, P. P.; Jin, C. Q.; Yang, W. G.; Shen, G. Y.

    2012-06-01T23:59:59.000Z

    We report a comprehensive high-pressure study on the triple-layer T'-La?Ni?O? with a suite of experimental probes, including structure determination, magnetic, and transport properties up to 50 GPa. Consistent with a recent ab inito calculation, application of hydrostatic pressure suppresses an insulator-metal spin-state transition at Pc?6 GPa. However, a low-spin metallic phase does not emerge after the high-spin state is suppressed to the lowest temperature. For P>20 GPa, the ambient T' structure transforms gradually to a T†-type structure, which involves a structural reconstruction from fluorite La–O?–La blocks under low pressures to rock-salt LaO-LaO blocks under high pressures. Absence of the metallic phase under pressure has been discussed in terms of local displacements of O²? ions in the fluorite block under pressure before a global T† phase is established.

  16. Pressure Effect on the Structural Transition and Suppression of the High-Spin State in the Triple-Layer T'-La?Ni?O?

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

    Cheng, J.-G.; Zhou, J.-S.; Goodenough, J. B.; Zhou, H. D.; Matsubayashi, K.; Uwatoko, Y.; Kong, P. P.; Jin, C. Q.; Yang, W. G.; Shen, G. Y.

    2012-06-01T23:59:59.000Z

    We report a comprehensive high-pressure study on the triple-layer T'-La?Ni?O? with a suite of experimental probes, including structure determination, magnetic, and transport properties up to 50 GPa. Consistent with a recent ab inito calculation, application of hydrostatic pressure suppresses an insulator-metal spin-state transition at Pc?6 GPa. However, a low-spin metallic phase does not emerge after the high-spin state is suppressed to the lowest temperature. For P>20 GPa, the ambient T' structure transforms gradually to a T†-type structure, which involves a structural reconstruction from fluorite La–O?–La blocks under low pressures to rock-salt LaO-LaO blocks under high pressures. Absence of the metallicmore »phase under pressure has been discussed in terms of local displacements of O²? ions in the fluorite block under pressure before a global T† phase is established.« less

  17. Nanostructure of Solid Precipitates Obtained by Expansion of Polystyrene-block-Polybutadiene Solutions in Near Critical Propane: Block Ratio and Micellar Solution Effects

    SciTech Connect (OSTI)

    Green, Jade [University of Wyoming, Laramie; Tyrrell, Zachary [University of Wyoming, Laramie; Radosz, Maciej [University of Wyoming, Laramie; Hong, Kunlun [ORNL; Mays, Jimmy [ORNL

    2011-01-01T23:59:59.000Z

    In contrast to incompressible liquid solutions, compressible near-critical solutions of block copolymers allow for controlling rapid structure transformations with pressure alone. For example, when dissolved in near-critical propane, polystyrene-block-polybutadiene can form a random molecular solution at high pressures, a micellar solution at moderate pressures, and a solvent-free precipitate at low pressures. In contrast to the unstructured virgin copolymer, such a propane-treated precipitate rapidly self-assembles toward structures characteristic of equilibrated block copolymers, such as lamellae, spheres, or cylinders, which depend on the block ratio rather than on the decompression rate or temperature, at least within the rate and temperature ranges investigated in this work. At lower temperatures, however, say below 40 C, glass transition of the styrene-butadiene diblocks can inhibit independent structure formation, while crystallization of their hydrogenated-butadiene analogues can preserve the micellar-solution structure.

  18. Electrical Engineering and Computer Cross-Layer Design

    E-Print Network [OSTI]

    Electrical Engineering and Computer Science Cross-Layer Design and Analysis of Wireless Networks Layer Design #12;Electrical Engineering and Computer Science Layered Approach Presentation Layer Session;Electrical Engineering and Computer Science Why not cross-layer design? · Difficulty. · Lack of insight

  19. Superconductive articles including cerium oxide layer

    DOE Patents [OSTI]

    Wu, X.D.; Muenchausen, R.E.

    1993-11-16T23:59:59.000Z

    A ceramic superconductor comprising a metal oxide substrate, a ceramic high temperature superconductive material, and a intermediate layer of a material having a cubic crystal structure, said layer situated between the substrate and the superconductive material is provided, and a structure for supporting a ceramic superconducting material is provided, said structure comprising a metal oxide substrate, and a layer situated over the surface of the substrate to substantially inhibit interdiffusion between the substrate and a ceramic superconducting material deposited upon said structure. 7 figures.

  20. Method for forming a barrier layer

    DOE Patents [OSTI]

    Weihs, Timothy P. (Baltimore, MD); Barbee, Jr., Troy W. (Palo Alto, CA)

    2002-01-01T23:59:59.000Z

    Cubic or metastable cubic refractory metal carbides act as barrier layers to isolate, adhere, and passivate copper in semiconductor fabrication. One or more barrier layers of the metal carbide are deposited in conjunction with copper metallizations to form a multilayer characterized by a cubic crystal structure with a strong (100) texture. Suitable barrier layer materials include refractory transition metal carbides such as vanadium carbide (VC), niobium carbide (NbC), tantalum carbide (TaC), chromium carbide (Cr.sub.3 C.sub.2), tungsten carbide (WC), and molybdenum carbide (MoC).

  1. Energy transport using natural convection boundary layers

    SciTech Connect (OSTI)

    Anderson, R.

    1986-04-01T23:59:59.000Z

    Natural convection is one of the major modes of energy transport in passive solar buildings. There are two primary mechanisms for natural convection heat transport through an aperture between building zones: (1) bulk density differences created by temperature differences between zones; and (2) thermosyphon pumping created by natural convection boundary layers. The primary objective of the present study is to compare the characteristics of bulk density driven and boundary layer driven flow, and discuss some of the advantages associated with the use of natural convection boundary layers to transport energy in solar building applications.

  2. Abstraction Layers for Scalable Microfluidic Biocomputers

    E-Print Network [OSTI]

    Amarasinghe, Saman

    Abstraction Layers for Scalable Microfluidic Biocomputers William Thies1 , John Paul Urbanski2 Hatsopoulos Microfluids Laboratory Massachusetts Institute of Technology {thies, urbanski, thorsen, saman}@mit.edu Abstract. Microfluidic devices are emerging as an attractive technol- ogy for automatically orchestrating

  3. Layered solid sorbents for carbon dioxide capture

    SciTech Connect (OSTI)

    Li, Bingyun; Jiang, Bingbing; Gray, McMahan L; Fauth, Daniel J; Pennline, Henry W; Richards, George A

    2014-11-18T23:59:59.000Z

    A solid sorbent for the capture and the transport of carbon dioxide gas is provided having at least one first layer of a positively charged material that is polyethylenimine or poly(allylamine hydrochloride), that captures at least a portion of the gas, and at least one second layer of a negatively charged material that is polystyrenesulfonate or poly(acryclic acid), that transports the gas, wherein the second layer of material is in juxtaposition to, attached to, or crosslinked with the first layer for forming at least one bilayer, and a solid substrate support having a porous surface, wherein one or more of the bilayers is/are deposited on the surface of and/or within the solid substrate. A method of preparing and using the solid sorbent is provided.

  4. Counting molecular-beam grown graphene layers

    SciTech Connect (OSTI)

    Plaut, Annette S. [School of Physics, University of Exeter, Exeter EX4 4QL (United Kingdom)] [School of Physics, University of Exeter, Exeter EX4 4QL (United Kingdom); Wurstbauer, Ulrich [Department of Physics, Columbia University, New York, New York 10027 (United States)] [Department of Physics, Columbia University, New York, New York 10027 (United States); Pinczuk, Aron [Department of Physics, Columbia University, New York, New York 10027 (United States) [Department of Physics, Columbia University, New York, New York 10027 (United States); Department of Applied Physics and Applied Mathematics, Columbia University, New York, New York 10027 (United States); Garcia, Jorge M. [MBE Lab, IMM-Instituto de Microelectronica de Madrid (CNM-CSIC), Madrid, E-28760 (Spain)] [MBE Lab, IMM-Instituto de Microelectronica de Madrid (CNM-CSIC), Madrid, E-28760 (Spain); Pfeiffer, Loren N. [Electrical Engineering Department, Princeton University, New Jersey 08544 (United States)] [Electrical Engineering Department, Princeton University, New Jersey 08544 (United States)

    2013-06-17T23:59:59.000Z

    We have used the ratio of the integrated intensity of graphene's Raman G peak to that of the silicon substrate's first-order optical phonon peak, accurately to determine the number of graphene layers across our molecular-beam (MB) grown graphene films. We find that these results agree well both, with those from our own exfoliated single and few-layer graphene flakes, and with the results of Koh et al.[ACS Nano 5, 269 (2011)]. We hence distinguish regions of single-, bi-, tri-, four-layer, etc., graphene, consecutively, as we scan coarsely across our MB-grown graphene. This is the first, but crucial, step to being able to grow, by such molecular-beam-techniques, a specified number of large-area graphene layers, to order.

  5. Josephson vortex lattice in layered superconductors

    SciTech Connect (OSTI)

    Koshelev, A. E., E-mail: koshelev@anl.gov [Argonne National Laboratory, Materials Science Division (United States); Dodgson, M. J. W. [Cavendish Laboratory, Theory of Condensed Matter Group (United Kingdom)] [Cavendish Laboratory, Theory of Condensed Matter Group (United Kingdom)

    2013-09-15T23:59:59.000Z

    Many superconducting materials are composed of weakly coupled conducting layers. Such a layered structure has a very strong influence on the properties of vortex matter in a magnetic field. This review focuses on the properties of the Josephson vortex lattice generated by the magnetic field applied in the direction of the layers. The theoretical description is based on the Lawrence-Doniach model in the London limit, which takes only the phase degree of freedom of the superconducting order parameter into account. In spite of its simplicity, this model leads to an amazingly rich set of phenomena. We review in detail the structure of an isolated vortex line and various properties of the vortex lattice, in both dilute and dense limits. In particular, we extensively discuss the influence of the layered structure and thermal fluctuations on the selection of lattice configurations at different magnetic fields.

  6. Multi-layer waste containment barrier

    DOE Patents [OSTI]

    Smith, Ann Marie (Pocatello, ID); Gardner, Bradley M. (Idaho Falls, ID); Nickelson, David F. (Idaho Falls, ID)

    1999-01-01T23:59:59.000Z

    An apparatus for constructing an underground containment barrier for containing an in-situ portion of earth. The apparatus includes an excavating device for simultaneously (i) excavating earthen material from beside the in-situ portion of earth without removing the in-situ portion and thereby forming an open side trench defined by opposing earthen sidewalls, and (ii) excavating earthen material from beneath the in-situ portion of earth without removing the in-situ portion and thereby forming a generally horizontal underground trench beneath the in-situ portion defined by opposing earthen sidewalls. The apparatus further includes a barrier-forming device attached to the excavating device for simultaneously forming a side barrier within the open trench and a generally horizontal, multi-layer barrier within the generally horizontal trench. The multi-layer barrier includes at least a first layer and a second layer.

  7. Finite element analysis of shells with layers

    E-Print Network [OSTI]

    Hiller, Jean-François, 1974-

    2002-01-01T23:59:59.000Z

    It is well established that thin shell structures frequently feature narrow bands of strain concentration and localized displacement irregularities referred to as boundary and internal layers. It is crucial to capture these ...

  8. Double layer capacitors : automotive applications and modeling

    E-Print Network [OSTI]

    New, David Allen, 1976-

    2004-01-01T23:59:59.000Z

    This thesis documents the work on the modeling of double layer capacitors (DLCs) and the validation of the modeling procedure. Several experiments were conducted to subject the device under test to a variety of ...

  9. Synthesis and Characterization of Simultaneous Electronic and Ionic Conducting Block Copolymers for Lithium Battery Electrodes

    E-Print Network [OSTI]

    Patel, Shrayesh

    2013-01-01T23:59:59.000Z

    Battery Electrodes by Shrayesh Naran Patel Abstract Synthesis and Characterizationand Characterization of Simultaneous Electronic and Ionic Conducting Block Copolymers for Lithium BatteryBattery Design ..10 1.6 Outline of Dissertation 12 Chapter 2 –Poly(3-alkylthiophene-block-ethylene oxide) Synthesis and Characterization .

  10. TESLA Report 2003-29 Functional analysis of DSP blocks in FPGA chips

    E-Print Network [OSTI]

    TESLA Report 2003-29 Functional analysis of DSP blocks in FPGA chips for application in TESLA LLRF blocks. The new functionalities are well suited for the application in the TESLA LLRF cavity simulation in the FPGA chips of Altera and Xilinx. There were compared the results for a few different chips. The TESLA

  11. Designs for the manufacture of manipulable plastic DNA/RNA building blocks for learning life science

    E-Print Network [OSTI]

    Lemanski, Bethany I

    2013-01-01T23:59:59.000Z

    The subject of this thesis is the design of custom injection-molded manipulable DNA building blocks for use in a hands-on life sciences educational kit. The new design of the DNA building blocks is meant to replace the ...

  12. Scalable massively parallel simplex algorithms for block-structured linear programs

    E-Print Network [OSTI]

    Hall, Julian

    Scalable massively parallel simplex algorithms for block-structured linear programs Ilkay Boduro of Mathematics, University of Edinburgh September 14th 2007 Scalable massively parallel simplex algorithms for block-structured linear programs #12;Simplex methods for LP problems minimize f = cT x subject to Ax = b

  13. On Joint Detection and Decoding of Linear Block Codes on Gaussian Vector Channels

    E-Print Network [OSTI]

    Vikalo, Haris

    On Joint Detection and Decoding of Linear Block Codes on Gaussian Vector Channels HARIS VIKALO the noise and over the lattice. For binary linear block codes, we find the expected com- plexity in closed, multiple-antenna systems, lattice problems, NP hard, expected complexity, joint detection and decoding 1

  14. A practical post-processing technique for real-time block-based coding system

    E-Print Network [OSTI]

    Chan, Chris Y. H.

    1 A practical post-processing technique for real-time block-based coding system Yuk-Hee Chan, Sung to restore the images encoded with block-based compression standards such as JPEG. This method classi es with the reported post-processing methods. Keywords| I. Introduction THE Joint Photographic Experts Group JPEG im

  15. Block-LDA: Jointly Modeling Entity-Annotated Text and Entity-Entity Links

    E-Print Network [OSTI]

    Airoldi, Edoardo "Edo"

    13 Block-LDA: Jointly Modeling Entity-Annotated Text and Entity-Entity Links Ramnath.1 Introduction ................................................................................ 256 13.2 Block-entity link modeling by jointly modeling links and text about the entities that are linked. We apply the model

  16. THE MITTAGLEFFLER PROCESS AND A SCALING LIMIT FOR THE BLOCK COUNTING PROCESS OF

    E-Print Network [OSTI]

    Möhle, Martin

    THE MITTAG­LEFFLER PROCESS AND A SCALING LIMIT FOR THE BLOCK COUNTING PROCESS OF THE BOLTHAUSEN, for example an explicit formula for the joint moments of its finite dimensional distributions. The main result states that the block counting process of the Bolthausen­Sznitman n-coalescent, properly scaled

  17. SPACETIME BLOCK CODING : JOINT DETECTION AND CHANNEL ESTIMATION USING MULTIPLE MODEL THEORY

    E-Print Network [OSTI]

    Imperial College, London

    SPACE­TIME BLOCK CODING : JOINT DETECTION AND CHANNEL ESTIMATION USING MULTIPLE MODEL THEORY Harini of Sheffield, Mappin Street, Sheffield S1 3JD. Email: visakan@sheffield.ac.uk ABSTRACT A joint decoding method for space­time block codes [1, 2] is pre­ sented. The space­time coded signals can be viewed as a first

  18. Jointly Optimized Spatial Prediction and Block Transform for Video and Image Coding

    E-Print Network [OSTI]

    California at Santa Barbara, University of

    1 Jointly Optimized Spatial Prediction and Block Transform for Video and Image Coding Jingning Han, IEEE Abstract--This paper proposes a novel approach to jointly optimize spatial prediction substantial reduction in blocking artifacts, due to the fact that the transform now adapts to the statistics

  19. SPACE-TIME BLOCK CODING : JOINT DETECTION AND CHANNEL ESTIMATION USING MULTIPLE MODEL THEORY

    E-Print Network [OSTI]

    Imperial College, London

    SPACE-TIME BLOCK CODING : JOINT DETECTION AND CHANNEL ESTIMATION USING MULTIPLE MODEL THEORY Harini of Sheffield, Mappin Street, Sheffield S1 3JD. Email: visakan@sheffield.ac.uk ABSTRACT A joint decoding method for space-time block codes [1, 2] is pre- sented. The space-time coded signals can be viewed as a first

  20. Improving MPEG-4 coding performance by jointly optimising compression and blocking effect elimination

    E-Print Network [OSTI]

    Chan, Chris Y. H.

    1 Improving MPEG-4 coding performance by jointly optimising compression and blocking effect and Information Engineering The Hong Kong Polytechnic University, Hong Kong ABSTRACT In most current block into account in the compression and the two processes can be jointly optimised. An example is also provided

  1. GRADUATE STUDENT COURSE ASSIGNMENTS |_|_Block_1Di|screte_Mathematics__-_Babai___________We|eks_1-8_____| |

    E-Print Network [OSTI]

    May, J. Peter

    -|theory__-_May_________________________|Weeks_1-2,_5-8_| | |_|_Block_6Nu|mber_Theory_(Apprentice)__-_Abert_BabaiW|eeks_1-8), Kamgarpour, Smith Block 6 (Apprentice) (weeks 1-4, mentoring also 5-8) Anders, Booth, Holden, Madapusi ___________________________________________________ |_|_Name________________B|lock_|Weeks__|_Mentoring_ | | | | Alan Anders 6|, 5 |all 8 A|pprentice

  2. Synthesis of highly ordered mesoporous silica materials using sodium silicate and amphiphilic block copolymers

    E-Print Network [OSTI]

    Kim, Ji Man

    Synthesis of highly ordered mesoporous silica materials using sodium silicate and amphiphilic block) structures, using sodium silicate as the silica source and amphiphilic block copolymers as the structure of mesoporous silica material using nonionic surfac- tant and sodium silicate in the pH range 3­10.5. However

  3. Multi-block sulfonated poly(phenylene) copolymer proton exchange membranes

    DOE Patents [OSTI]

    Fujimoto, Cy H. (Albuquerque, NM); Hibbs, Michael (Albuquerque, NM); Ambrosini, Andrea (Albuquerque, NM)

    2012-02-07T23:59:59.000Z

    Improved multi-block sulfonated poly(phenylene) copolymer compositions, methods of making the same, and their use as proton exchange membranes (PEM) in hydrogen fuel cells, direct methanol fuel cells, in electrode casting solutions and electrodes. The multi-block architecture has defined, controllable hydrophobic and hydrophilic segments. These improved membranes have better ion transport (proton conductivity) and water swelling properties.

  4. Polymer Segmental Cross-Correlations from Dielectric Relaxation Spectra of Block Copolymers

    E-Print Network [OSTI]

    George D. J. Phillies

    2011-02-21T23:59:59.000Z

    Dielectric relaxation spectra of block polymers containing sequential type-A dipoles are considered. Spectra of a specific set of block copolymers can be combined to isolate the dynamic cross-correlation between the motions of two distinct parts of the same polymer chain. Unlike past treatments of this problem, no model is assumed for the underlying polymer dynamics.

  5. Advances in Electrical and Computer Engineering Abstract--The linear, binary, block codes with no equally

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Advances in Electrical and Computer Engineering 1 Abstract-- The linear, binary, block codes block codes is proposed. These codes are seen as sources with memory and the information quantities H(S,X), H(S), H(X), H(X|S), H(S|X), I(S,X) are derived. On the base of these quantities, the code

  6. Function Block Diagrams * {ekjee, jbyoo, suhyun, cha}@dependable.kaist.ac.kr

    E-Print Network [OSTI]

    }@dependable.kaist.ac.kr : FBD(Function Block Diagram) FBD . PLC FBD C . FBD . FBD Center(ITRC). RLL(Relay Ladder Logic) , . PLC(Programmable Logic Controller) [2] , LD(Ladder Diagram) FBD(Function Block Diagram) PLC . PLC . PLC

  7. CAPSULE INTRODUCTIONS BLOCK 1: Babai and May. Those in the apprentice program will attend the first

    E-Print Network [OSTI]

    May, J. Peter

    CAPSULE INTRODUCTIONS BLOCK 1: Babai and May. Those in the apprentice program will attend the first undergraduate curriculum. BLOCK 2: Babai. Everyone is welcome. Those in the apprentice program are strongly. It will be fully accessible to those in the apprentice program. II. (Abert). Groups and words. The topics here

  8. GRADUATE STUDENT COURSE ASSIGNMENTS |_|_Block_1Di|screte_mathematics__-_Babai______We|eks_1-8_ | |

    E-Print Network [OSTI]

    May, J. Peter

    P|roducts_on_spaces__-_Angeltveit__Week|s_5-8_ | | |_|_Block_6Nu|mber_Theory_(Apprentice)__-_BabaiW|eeks_1 (Angeltveit) (weeks 5-8) Bohmann, Johnson, Lind Block 5 (Apprentice) (weeks 2-4) Broshi, Geline, Kerr, 3c | Apprentice | | Sundeep Balaji |8 | 1 | YSP

  9. BulkSMT: Designing SMT Processors for Atomic-Block Execution

    E-Print Network [OSTI]

    Zaragoza, Universidad de

    BulkSMT: Designing SMT Processors for Atomic-Block Execution Xuehai Qian, Benjamin Sahelices single-context cores as building blocks -- rather than the widely-used Simultaneous Multithreading (SMT) cores. As a result, they are underutilizing hardware resources. This paper presents the first SMT design

  10. Secret-Key Agreement over Non-Coherent Block-Fading Channels with Public Discussion

    E-Print Network [OSTI]

    Khisti, Ashish

    1 Secret-Key Agreement over Non-Coherent Block-Fading Channels with Public Discussion Ashish Khisti Member, IEEE Abstract Fundamental limits of secret-key generation over a two-way, reciprocal and block establish upper and lower bounds on the secret-key generation capacity with public discussion. The upper

  11. An adaptive SIR method for block-wise evolving data streams

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Reduction (EDR) space. In this paper we focus on data arriving sequentially by block in a stream. We assume), i = 1, . . . , nt} available from model (1). Our goal is to estimate the EDR direction at each blocks and then estimate the EDR direction by the Sliced Inverse Regression method introduced by Li [5

  12. Analytical Layer Planning for Nanometer VLSI Designs 

    E-Print Network [OSTI]

    Chang, Chi-Yu

    2012-10-19T23:59:59.000Z

    i ANALYTICAL LAYER PLANNING FOR NANOMETER VLSI DESIGNS A Thesis by CHI-YU CHANG Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE August 2012 Major Subject: Electrical Engineering ii ANALYTICAL LAYER PLANNING FOR NANOMETER VLSI DESIGNS A Thesis by CHI-YU CHANG Submitted to the Office of Graduate Studies of Texas A&M University in partial...

  13. Symmetry Breaking in Few Layer Graphene Films

    SciTech Connect (OSTI)

    Bostwick, A.; Ohta, T.; McChesney, J.L.; Emtsev, K.; Seyller,Th.; Horn, K.; Rotenberg, E.

    2007-05-25T23:59:59.000Z

    Recently, it was demonstrated that the quasiparticledynamics, the layer-dependent charge and potential, and the c-axisscreening coefficient could be extracted from measurements of thespectral function of few layer graphene films grown epitaxially on SiCusing angle-resolved photoemission spectroscopy (ARPES). In this articlewe review these findings, and present detailed methodology for extractingsuch parameters from ARPES. We also present detailed arguments againstthe possibility of an energy gap at the Dirac crossing ED.

  14. Lattice Vibrations and Superconductivity in Layered Structures

    E-Print Network [OSTI]

    Allen, Roland E.; Alldredg, GP; WETTE, FWD.

    1970-01-01T23:59:59.000Z

    PHYSICAL REVIEW B VOLUME 2, NUMBER 7 1 OCTOB ER, 1970 Lattice Vibrations and Superconductivity in Layered Structures* B. E. Allen, G. P. Alldredge, and F. W. de bette DePartment of Physics, University of Texas, Austin, Texas 78712 (Received 18... May 1970) In order to estimate the influence of both surface and interface effects on phonon frequencies and superconducting transition temperatures in layered structures, we have calculated the vibrational modes of structures composed...

  15. Optical devices featuring textured semiconductor layers

    DOE Patents [OSTI]

    Moustakas, Theodore D. (Dover, MA); Cabalu, Jasper S. (Cary, NC)

    2012-08-07T23:59:59.000Z

    A semiconductor sensor, solar cell or emitter, or a precursor therefor, has a substrate and one or more textured semiconductor layers deposited onto the substrate. The textured layers enhance light extraction or absorption. Texturing in the region of multiple quantum wells greatly enhances internal quantum efficiency if the semiconductor is polar and the quantum wells are grown along the polar direction. Electroluminescence of LEDs of the invention is dichromatic, and results in variable color LEDs, including white LEDs, without the use of phosphor.

  16. Optical devices featuring textured semiconductor layers

    DOE Patents [OSTI]

    Moustakas, Theodore D. (Dover, MA); Cabalu, Jasper S. (Cary, NC)

    2011-10-11T23:59:59.000Z

    A semiconductor sensor, solar cell or emitter, or a precursor therefor, has a substrate and one or more textured semiconductor layers deposited onto the substrate. The textured layers enhance light extraction or absorption. Texturing in the region of multiple quantum wells greatly enhances internal quantum efficiency if the semiconductor is polar and the quantum wells are grown along the polar direction. Electroluminescence of LEDs of the invention is dichromatic, and results in variable color LEDs, including white LEDs, without the use of phosphor.

  17. Optical devices featuring nonpolar textured semiconductor layers

    DOE Patents [OSTI]

    Moustakas, Theodore D; Moldawer, Adam; Bhattacharyya, Anirban; Abell, Joshua

    2013-11-26T23:59:59.000Z

    A semiconductor emitter, or precursor therefor, has a substrate and one or more textured semiconductor layers deposited onto the substrate in a nonpolar orientation. The textured layers enhance light extraction, and the use of nonpolar orientation greatly enhances internal quantum efficiency compared to conventional devices. Both the internal and external quantum efficiencies of emitters of the invention can be 70-80% or higher. The invention provides highly efficient light emitting diodes suitable for solid state lighting.

  18. Graphene Layer Growth Chemistry: Five-Six-Ring Flip Reaction

    E-Print Network [OSTI]

    Whitesides, R.; Domin, D.; Salomon-Ferrer, R.; Lester Jr., W.A.; Frenklach, M.

    2008-01-01T23:59:59.000Z

    are incorporated into growing graphene layers and hence willGRAPHENE LAYER GROWTH CHEMISTRY: FIVE-SIX-RING FLIP REACTIONon the zigzag edge of a graphene layer. A new reaction

  19. Graphene Layer Growth Chemistry: Five-Six-Ring Flip Reaction

    E-Print Network [OSTI]

    Whitesides, Russell; Domin, Dominik; Lester Jr., William A.; Frenklach, Michael

    2007-01-01T23:59:59.000Z

    25-28, 2007. Topic: Soot GRAPHENE LAYER GROWTH CHEMISTRY:on the zigzag edge of a graphene layer isomerizes to reversea possibly important step in graphene layer growth, thus

  20. Organic light emitting device having multiple separate emissive layers

    DOE Patents [OSTI]

    Forrest, Stephen R. (Ann Arbor, MI)

    2012-03-27T23:59:59.000Z

    An organic light emitting device having multiple separate emissive layers is provided. Each emissive layer may define an exciton formation region, allowing exciton formation to occur across the entire emissive region. By aligning the energy levels of each emissive layer with the adjacent emissive layers, exciton formation in each layer may be improved. Devices incorporating multiple emissive layers with multiple exciton formation regions may exhibit improved performance, including internal quantum efficiencies of up to 100%.

  1. Hybrid inorganic–organic superlattice structures with atomic layer deposition/molecular layer deposition

    SciTech Connect (OSTI)

    Tynell, Tommi; Yamauchi, Hisao; Karppinen, Maarit, E-mail: maarit.karppinen@aalto.fi [Department of Chemistry, Aalto University, FI-00076 Aalto (Finland)

    2014-01-15T23:59:59.000Z

    A combination of the atomic layer deposition (ALD) and molecular layer deposition (MLD) techniques is successfully employed to fabricate thin films incorporating superlattice structures that consist of single layers of organic molecules between thicker layers of ZnO. Diethyl zinc and water are used as precursors for the deposition of ZnO by ALD, while three different organic precursors are investigated for the MLD part: hydroquinone, 4-aminophenol and 4,4?-oxydianiline. The successful superlattice formation with all the organic precursors is verified through x-ray reflectivity studies. The effects of the interspersed organic layers/superlattice structure on the electrical and thermoelectric properties of ZnO are investigated through resistivity and Seebeck coefficient measurements at room temperature. The results suggest an increase in carrier concentration for small concentrations of organic layers, while higher concentrations seem to lead to rather large reductions in carrier concentration.

  2. Characterization of the plastic substrates, the reflective layers...

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

    the plastic substrates, the reflective layers, the adhesives, and the grooves of today's archival-grade Characterization of the plastic substrates, the reflective layers, the...

  3. antarctic boundary layer: Topics by E-print Network

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

    Geosciences Websites Summary: Boundary Layer Meteorology (METR 5103) Spring 2014 Syllabus General information Fundamentals of the atmospheric boundary layer dynamics and...

  4. atmosperic boundary layer: Topics by E-print Network

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

    Geosciences Websites Summary: Boundary Layer Meteorology (METR 5103) Spring 2014 Syllabus General information Fundamentals of the atmospheric boundary layer dynamics and...

  5. Vacancies Ordered in Screw Form (VOSF) and Layered Indium Selenide...

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

    Ordered in Screw Form (VOSF) and Layered Indium Selenide Thin Film Deposition by Laser Back Ablation. Vacancies Ordered in Screw Form (VOSF) and Layered Indium Selenide Thin Film...

  6. Amorphous layer coating induced brittle to ductile transition...

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

    layer coating induced brittle to ductile transition in single crystalline SiC nanowires: an atomistic simulation. Amorphous layer coating induced brittle to ductile transition in...

  7. Layered Electrodes for Lithium Cells and Batteries | Argonne...

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

    Layered Electrodes for Lithium Cells and Batteries Technology available for licensing: Layered lithium metal oxide compounds for ultra-high-capacity, rechargeable cathodes Lowers...

  8. Redox Chemistry in Thin Layers of Organometallic Complexes Prepared...

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

    Redox Chemistry in Thin Layers of Organometallic Complexes Prepared Using Ion Soft Landing. Redox Chemistry in Thin Layers of Organometallic Complexes Prepared Using Ion Soft...

  9. Removal of carbon tetrachloride from a layered porous medium...

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

    carbon tetrachloride from a layered porous medium by means of soil vapor extraction enhanced by desiccation and water Removal of carbon tetrachloride from a layered porous medium...

  10. Removal of Carbon Tetrachloride from a Layered Porous Medium...

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

    Carbon Tetrachloride from a Layered Porous Medium by Means of Soil Vapor Extraction Enhanced by Desiccation and Water Removal of Carbon Tetrachloride from a Layered Porous Medium...

  11. anisotropic porous layer: Topics by E-print Network

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

    of Highly Porous Catalytic Layers for Polymer Electrolyte Fuel Cell Based on Carbon Aerogels Physics Websites Summary: Synthesis of Highly Porous Catalytic Layers for Polymer...

  12. Mapping DNAPL transport contamination in sedimentary and fractured rock aquifers with high resolution borehole seismic imaging Project No. SF11SS13 FY01 Annual Report

    SciTech Connect (OSTI)

    Geller, J.T.; Majer, E.L.; Peterson, J.E.; Williams, K.H.; Flexser, S.

    2001-12-01T23:59:59.000Z

    This report covers the work performed in the first year of a three-year project funded by the USDOE's Subsurface Contaminant Focus Area (SCFA). The objectives of this project are to develop, demonstrate and evaluate, at appropriate field sites, the utility of high frequency seismic imaging methods to detect and characterize non-aqueous phase liquid (NAPL) contamination in sedimentary and fractured rock aquifers. Field tests consist of crosswell seismic tomography acquired before, during and after any remediation action that would potentially affect fluid distributions. Where feasible, other characterization data is obtained, such as crosswell radar, borehole conductivity and cone penetration testing (CPT). Crosswell data are processed to obtain tomographic images, or two-dimensional distributions, of velocity and attenuation. The interpretation of the tomograms utilizes all available site characterization data to relate the geophysical attributes to lithology and fluid phase heterogeneities. Interpretations are validated by evaluation and testing of field cores. Laboratory tests on core retrieved from surveyed locations are performed to determine the relationships between geophysical parameters and solid and fluid phase composition. In the case of sedimentary aquifers, proof of principle has been demonstrated previously in homogeneous sand-packs at the centimeter and half-meter scale (Geller and Myer, 1995; Geller et al., 2000). The field tests will provide proof-of-principle at the field-scale, by working in an unconsolidated sand aquifer with known presence of NAPL. The ability to upscale from the laboratory to the field is evaluated by conducting field measurements over a range of frequencies that overlap the lowest frequencies used in the laboratory tests. In the fractured rock case, previous field work has shown that fracture zones can be detected by crosswell seismic tomography (Daley et al., 2001; Daley et al., 2000). Laboratory studies have demonstrated that the seismic wave signature is sensitive to the fracture stiffness, and that stiffness is affected by fracture-filling fluids (Pyrak-Nolte and Morris, 2000; Pyrak-Nolte, 1996). The field and laboratory experience provide a physical basis for the potential detection of fractures that would be the important flow paths for NAPL contaminants.

  13. Characterization of CZTSSe photovoltaic device with an atomic layer-deposited passivation layer

    SciTech Connect (OSTI)

    Wu, Wei, E-mail: wei.wu@dupont.com; Cao, Yanyan; Caspar, Jonathan V.; Guo, Qijie; Johnson, Lynda K.; Mclean, Robert S.; Malajovich, Irina; Choudhury, Kaushik Roy [DuPont Central Research and Development, Wilmington, Delaware 19880 (United States)

    2014-07-28T23:59:59.000Z

    We describe a CZTSSe (Cu{sub 2}ZnSn(S{sub 1?x},Se{sub x}){sub 4}) photovoltaic (PV) device with an ALD (atomic layer deposition) coated buffer dielectric layer for CZTSSe surface passivation. An ALD buffer layer, such as TiO{sub 2}, can be applied in order to reduce the interface recombination and improve the device's open-circuit voltage. Detailed characterization data including current-voltage, admittance spectroscopy, and capacitance profiling are presented in order to compare the performance of PV devices with and without the ALD layer.

  14. Metal-sensing layer-semiconductor and metal-sensing layer-metal heterostructure gas sensors

    SciTech Connect (OSTI)

    O'Leary, M.; Li, Zheng; Fonash, S.J.

    1987-01-01T23:59:59.000Z

    Extremely sensitive gas sensors can be fabricated using heterostructures of the form metal-sensing layer-semiconductor or metal-sensing layer-metal. These structures are heterostructure diodes which have the barrier controlling transport at least partially located in the sensing layer. In the presence of the gas species to be detected, the electrical properties of the sensing layer evolve, resulting in a modification of the barrier to electric current transport and, hence, resulting in detection due to changes in the current-voltage characteristics of the device. This type of sensor structure is demonstrated using the Pd/Ti-O/sub x/Ti heterostructure hydrogen detector.

  15. High-Pressure Micellar Solutions of Polystyrene-block-Polybutadiene and Polystyrene-block-Polyisoprene Solutions in Propane Exhibit Cloud-Pressure Reduction and Distinct Micellization End Points

    SciTech Connect (OSTI)

    Winoto, Winoto [University of Wyoming, Laramie; Radosz, Maciej [University of Wyoming, Laramie; Tan, Sugata [University of Wyoming, Laramie; Hong, Kunlun [ORNL; Mays, Jimmy [ORNL

    2009-01-01T23:59:59.000Z

    Micellar solutions of polystyrene-block-polybutadiene and polystyrene-block-polyisoprene in propane are found to exhibit significantly lower cloud pressures than the corresponding hypothetical non-micellar solutions. Such a cloud-pressure reduction indicates the extent to which micelle formation enhances the apparent diblock solubility in near-critical and hence compressible propane. Pressure-temperature points beyond which no micelles can be formed, referred to as the micellization end points, are found to depend on the block type, size and ratio, and on the polymer concentration. For a given pressure, the micellization end-point temperature corresponds to the "critical micelle temperature." The cloud-pressure reduction and the micellization end point measured for styrene-diene diblocks in propane should be characteristic of all amphiphilic diblock copolymer solutions that form micelles in compressible solvents.

  16. Application of the Gebhart-Block Model for Predicting Vertical Temperature Distribution in a Large Space Building with Natural Ventilation

    E-Print Network [OSTI]

    Huang, C.; Song, Y.; Luo, X.

    2006-01-01T23:59:59.000Z

    Based on the Block model for predicting vertical temperature distribution in a large space, this paper describes an improved Gebhart-Block model for predicting vertical temperature distribution of a large space with natural ventilation...

  17. Quasi-orthogonal space-frequency and space-time-frequency block codes for MIMO OFDM channels

    E-Print Network [OSTI]

    Fazel, Fatemeh; Jafarkhani, Hamid

    2008-01-01T23:59:59.000Z

    Lu and X. Wang, “Space-time code design in OFDM systems,” inSpace-time block codes from orthogonal designs,” IEEE Trans.orthogonal space- time block codes with full diversity,”

  18. Non-immunogenic, hydrophilic/cationic block copolymers and uses thereof

    DOE Patents [OSTI]

    Scales, Charles W.; Huang, Faqing; McCormick, Charles L.

    2010-05-18T23:59:59.000Z

    The present invention provides novel non-immunogenic, hydrophilic/cationic block copolymers comprising a neutral-hydrophilic polymer and a cationic polymer, wherein both polymers have well-defined chain-end functionality. A representative example of such a block copolymer comprises poly(N-(2-hydroxypropyl)methacrylamide) (PHPMA) and poly(N-[3-(dimethylamino)propyl]methacrylamide) (PDMAPMA). Also provided is a synthesis method thereof in aqueous media via reversible addition fragmentation chain transfer (RAFT) polymerization. Further provided are uses of these block copolymers as drug delivery vehicles and protection agents.

  19. Layer-by-layer carbon nanotube electrodes for flexible chemical sensor and energy storage applications

    E-Print Network [OSTI]

    Saetia, Kittipong

    2013-01-01T23:59:59.000Z

    The spray-assisted layer-by-layer (LbL) technique has been investigated for creating multi-walled carbon nanotube (MWNT) films on porous electrospun fiber mats via LbL assembly of surface-functionalized MWNTs. Negative and ...

  20. Layer-by-layer assembly of conducting membranes for photoelectrochemical cells

    E-Print Network [OSTI]

    Davis, Nicole R. (Nicole Rose)

    2014-01-01T23:59:59.000Z

    Spray-assisted layer-by-layer (Spray-LbL) assembly is used to achieve vertical transfer of silicon microwire arrays into an ion-conducting, ultrathin polymer membrane. The choice of LbL platform and the properties of the ...

  1. Atomic Layer-by-Layer Thermoelectric Conversion in Topological Insulator Bismuth/Antimony Tellurides

    E-Print Network [OSTI]

    Jo, Moon-Ho

    Supporting Information ABSTRACT: Material design for direct heat-to-electricity conversion with substantial that the thermoelectric conversion can be interiorly achieved at the atomic steps of a homogeneous medium by directAtomic Layer-by-Layer Thermoelectric Conversion in Topological Insulator Bismuth

  2. A Micellar Route to Layer-by-Layer Assembly of Hydrophobic Functional Polymers

    E-Print Network [OSTI]

    Zhao, Yue

    A Micellar Route to Layer-by-Layer Assembly of Hydrophobic Functional Polymers Qi Bo, Xia Tong, Yi, 2008 ABSTRACT: We demonstrate a general approach to introduce hydrophobic functional polymers-chain liquid crystalline polymer (SCLCP) were synthesized using atom transfer radical polymerization, followed

  3. Polyvalent surface modification of hydrocarbon polymers via covalent layer-by-layer self-assembly

    E-Print Network [OSTI]

    Liao, Kang-Shyang

    2009-05-15T23:59:59.000Z

    Layer-by-layer (LbL) assembly based on ionic interactions has proven to be a versatile route for surface modification and construction of ultrathin nanocomposites. Covalent LbL assembly based on facile ‘click’ covalent bond formation is an effective...

  4. Layer-by-layer assembly of electrically conductive polymer thin films

    E-Print Network [OSTI]

    Jan, Chien Sy Jason

    2007-09-17T23:59:59.000Z

    Layer-by-layer (LbL) assembly was used to produce highly conductive thin films with carbon black (CB) and polyelectrolytes. The effects of sonication and pHadjustment of the deposition mixtures on the conductivity and transparency of deposited films...

  5. A simplex model for layered niche networks

    E-Print Network [OSTI]

    P. Fraundorf

    2007-03-06T23:59:59.000Z

    The standing crop of correlations in metazoan communities may be assessed by an inventory of niche structures focused inward and outward from the physical boundaries of skin (self), gene-pool (family), and meme-pool (culture). We consider tracking the progression from three and four correlation layers in many animal communities, to five of six layers for the shared adaptation of most humans, with an attention-slice model that maps the niche-layer focus of individuals onto the 6-variable space of a 5-simplex. The measure puts questions about the effect, on culture and species, of policy and natural events into a common context, and may help explore the impact of electronically-mediated codes on community health.

  6. Growth of oxide exchange bias layers

    DOE Patents [OSTI]

    Chaiken, A.; Michel, R.P.

    1998-07-21T23:59:59.000Z

    An oxide (NiO, CoO, NiCoO) antiferromagnetic exchange bias layer produced by ion beam sputtering of an oxide target in pure argon (Ar) sputtering gas, with no oxygen gas introduced into the system. Antiferromagnetic oxide layers are used, for example, in magnetoresistive readback heads to shift the hysteresis loops of ferromagnetic films away from the zero field axis. For example, NiO exchange bias layers have been fabricated using ion beam sputtering of an NiO target using Ar ions, with the substrate temperature at 200 C, the ion beam voltage at 1000V and the beam current at 20 mA, with a deposition rate of about 0.2 {angstrom}/sec. The resulting NiO film was amorphous. 4 figs.

  7. Chromatic control in coextruded layered polymer microlenses

    E-Print Network [OSTI]

    Crescimanno, Michael; Andrews, James H; Zhou, Chuanhong; Petrus, Joshua B; Merlo, Cory; Bagheri, Cameron; Hetzel, Connor; Tancabel, James; Singer, Kenneth D; Baer, Eric

    2015-01-01T23:59:59.000Z

    We describe the formation, characterization and theoretical understanding of microlenses comprised of alternating polystyrene and polymethylmethacrylate layers produced by multilayer coextrusion. These lenses are fabricated by photolithography, using a grayscale mask followed by plasma etching, so that the refractive index alternation of the bilayer stack appears across the radius of the microlens. The alternating quarter-wave thick layers form a one-dimensional photonic crystal whose dispersion augments the material dispersion, allowing one to sculpt the chromatic dispersion of the lens by adjusting the layered structure. Using Huygen's principle, we model our experimental measurements of the focal length of these lenses across the reflection band of the multilayer polymer film from which the microlens is fashioned. For a 56 micron diameter multilayered lens of focal length 300 microns, we measured a nearly 25 percent variation in the focal length across a shallow, 50 nm-wide reflection band.

  8. EXPERIMENTAL STUDY OF COMBUSTION IN A TURBULENT BOUNDARY LAYER

    E-Print Network [OSTI]

    Cheng, R.K.

    2011-01-01T23:59:59.000Z

    evaporation, but the thermophoretic migration of particlesboundary layer due to thermophoretic motion and evaporation

  9. Double layer field shaping systems for toroidal plasmas

    DOE Patents [OSTI]

    Ohyabu, Nobuyoshi (La Jolla, CA)

    1982-01-01T23:59:59.000Z

    Methods and apparatus for plasma generation, confinement and control such as Tokamak plasma systems are described having a two layer field shaping coil system comprising an inner coil layer close to the plasma and an outer coil layer to minimize the current in the inner coil layer.

  10. LVT: A Layered Verification Technique for Distributed Computing Systems

    E-Print Network [OSTI]

    Olsson, Ron

    LVT: A Layered Verification Technique for Distributed Computing Systems Cui Zhang ? , Brian R of distributed computing systems with multiple component layers. Each lower layer in such a system provides languages as interfaces of systems, LVT treats each layer in a distributed computing system as a distributed

  11. Numerical Simulation of the Wave Bottom Boundary Layer

    E-Print Network [OSTI]

    Slinn, Donald

    boundary layer. Oscillatory boundary layers are examined using a high-resolution time-dependent threeNumerical Simulation of the Wave Bottom Boundary Layer Over a Smooth Surface. Part 1: Three for turbulent boundary layers that occur over a smooth bottom. Results indicate that turbulence levels

  12. Pd/Ni-WO3 anodic double layer gasochromic device

    DOE Patents [OSTI]

    Lee, Se-Hee; Tracy, C. Edwin; Pitts, J. Roland; Liu, Ping

    2004-04-20T23:59:59.000Z

    An anodic double layer gasochromic sensor structure for optical detection of hydrogen in improved response time and with improved optical absorption real time constants, comprising: a glass substrate; a tungsten-doped nickel oxide layer coated on the glass substrate; and a palladium layer coated on the tungsten-doped nickel oxide layer.

  13. Fusion Utility in the Knudsen Layer

    SciTech Connect (OSTI)

    Davidovits, Seth [PPPL; Fisch, Nathaniel J. [PPPL

    2014-08-01T23:59:59.000Z

    In inertial confi#12;nement fusion, the loss of fast ions from the edge of the fusing hot-spot region reduces the reactivity below its Maxwellian value. The loss of fast ions may be pronounced because of the long mean free paths of fast ions, compared to those of thermal ions. We introduce a fusion utility function to demonstrate essential features of this Knudsen layer e#11;ffect, in both magnetized and unmagnetized cases. The fusion utility concept is also used to evaluate restoring the reactivity in the Knudsen layer by manipulating fast ions in phase space using waves.

  14. Fusion utility in the Knudsen layer

    SciTech Connect (OSTI)

    Davidovits, Seth; Fisch, Nathaniel J. [Princeton Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08544 (United States)

    2014-09-15T23:59:59.000Z

    In inertial confinement fusion, the loss of fast ions from the edge of the fusing hot-spot region reduces the reactivity below its Maxwellian value. The loss of fast ions may be pronounced because of the long mean free paths of fast ions, compared with those of thermal ions. We introduce a fusion utility function to demonstrate essential features of this Knudsen layer effect, in both magnetized and unmagnetized cases. The fusion utility concept is also used to evaluate the restoring reactivity in the Knudsen layer by manipulating fast ions in phase space using waves.

  15. Energetic particle acceleration in shear layers

    E-Print Network [OSTI]

    M. Ostrowski

    1999-11-05T23:59:59.000Z

    A plasma velocity shear layer and/or a tangential flow discontinuity provide conditions allowing for energetic particle acceleration. We review such acceleration processes acting both in non-relativistic and in relativistic flows. In heliospheric conditions shear layers can provide particles with energies compatible with the observed values (from several keV up to MeV), while in relativistic extragalactic jets proton energies even in excess of 10^{19} eV can be obtained. Application of the discussed theory to particular astrophysical objects is severely limited by inadequate knowledge of local physical conditions.

  16. Photovoltaic cell with thin CS layer

    DOE Patents [OSTI]

    Jordan, John F. (El Paso, TX); Albright, Scot P. (El Paso, TX)

    1994-01-18T23:59:59.000Z

    An improved photovoltaic panel and method of forming a photovoltaic panel are disclosed for producing a high efficiency CdS/CdTe photovoltaic cell. The photovoltaic panel of the present invention is initially formed with a substantially thick Cds layer, and the effective thickness of the CdS layer is substantially reduced during regrowth to both form larger diameter CdTe crystals and substantially reduce the effective thickness of the C This invention was made with Government support under Subcontract No. ZL-7-06031-3 awarded by the Department of Energy. The Government has certain rights in this invention.

  17. Infrared spectroscopy of large scale single layer graphene on self assembled organic monolayer

    SciTech Connect (OSTI)

    Woo Kim, Nak; Youn Kim, Joo; Lee, Chul; Choi, E. J., E-mail: echoi@uos.ac.kr [Department of Physics, University of Seoul, Seoul 130-743 (Korea, Republic of); Jin Kim, Sang; Hee Hong, Byung [Department of Chemistry, Seoul National University, Seoul 151-742 (Korea, Republic of)

    2014-01-27T23:59:59.000Z

    We study the effect of self-assembled monolayer (SAM) organic molecule substrate on large scale single layer graphene using infrared transmission measurement on Graphene/SAM/SiO{sub 2}/Si composite samples. From the Drude weight of the chemically inert CH{sub 3}-SAM, the electron-donating NH{sub 2}-SAM, and the SAM-less graphene, we determine the carrier density doped into graphene by the three sources—the SiO{sub 2} substrate, the gas-adsorption, and the functional group of the SAM's—separately. The SAM-treatment leads to the low carrier density N???4?×?10{sup 11}?cm{sup ?2} by blocking the dominant SiO{sub 2}- driven doping. The carrier scattering increases by the SAM-treatment rather than decreases. However, the transport mobility is nevertheless improved due to the reduced carrier doping.

  18. Large-scale weakly nonlinear perturbations of convective magnetic dynamos in a rotating layer

    E-Print Network [OSTI]

    Chertovskih, Roman

    2015-01-01T23:59:59.000Z

    We present a new mechanism for generation of large-scale magnetic field by thermal convection which does not involve the alpha-effect. We consider weakly nonlinear perturbations of space-periodic steady convective magnetic dynamos in a rotating layer that were identified in our previous work. The perturbations have a spatial scale in the horizontal direction that is much larger than the period of the perturbed convective magnetohydrodynamic state. Following the formalism of the multiscale stability theory, we have derived the system of amplitude equations governing the evolution of the leading terms in expansion of the perturbations in power series in the scale ratio. This asymptotic analysis is more involved than in the cases considered earlier, because the kernel of the operator of linearisation has zero-mean neutral modes whose origin lies in the spatial invariance of the perturbed regime, the operator reduced on the generalised kernel has two Jordan normal form blocks of size two, and simplifying symmetri...

  19. IEEE TRANSACTIONS ON SIGNAL PROCESSING, VOL. 54, NO. 3, MARCH 2006 965 Design of Block Transceivers With Decision

    E-Print Network [OSTI]

    Davidson, Tim

    IEEE TRANSACTIONS ON SIGNAL PROCESSING, VOL. 54, NO. 3, MARCH 2006 965 Design of Block Transceivers, Fellow, IEEE Abstract--This paper presents a method for jointly designing the transmitter­receiver pair in a block-by-block communication system that employs (intrablock) decision feedback detection. We provide

  20. 0-7803-7442-8/02/$17.00 2002 IEEE Combined Beamforming and Space-Time Block Coding with a

    E-Print Network [OSTI]

    Morelos-Zaragoza, Robert H.

    continue our investigation of joint beamforming and transmit diversity with space-time block coding0-7803-7442-8/02/$17.00 © 2002 IEEE Combined Beamforming and Space-Time Block Coding with a Sparse or two) in conjunction with beam-space-time block coding to achieve transmit diversity. On the receiving

  1. 1456 IEEE TRANSACTIONS ON INFORMATION THEORY, VOL. 45, NO. 5, JULY 1999 SpaceTime Block Codes from Orthogonal Designs

    E-Print Network [OSTI]

    Mease, Kenneth D.

    different antennas rather than joint detection. This uses the orthogonal structure of the space­time block1456 IEEE TRANSACTIONS ON INFORMATION THEORY, VOL. 45, NO. 5, JULY 1999 Space­Time Block Codes from--We introduce space­time block coding, a new par- adigm for communication over Rayleigh fading channels using

  2. Accepted Article Preview: Published ahead of advance online publication Transcription Factor/microRNA Axis Blocks Melanoma

    E-Print Network [OSTI]

    Shamir, Ron

    /microRNA Axis Blocks Melanoma Invasion Program by miR-211 Targeting NUAK1 Rachel E Bell, Mehdi Khaled, Dvir Levy, Transcription Factor/microRNA Axis Blocks Melanoma Invasion Program by miR-211 Targeting NUAK1 Blocks Melanoma Invasion Program by miR-211 Targeting NUAK1 Rachel E. Bella,h , Mehdi Khaledb

  3. Back contact buffer layer for thin-film solar cells

    DOE Patents [OSTI]

    Compaan, Alvin D.; Plotnikov, Victor V.

    2014-09-09T23:59:59.000Z

    A photovoltaic cell structure is disclosed that includes a buffer/passivation layer at a CdTe/Back contact interface. The buffer/passivation layer is formed from the same material that forms the n-type semiconductor active layer. In one embodiment, the buffer layer and the n-type semiconductor active layer are formed from cadmium sulfide (CdS). A method of forming a photovoltaic cell includes the step of forming the semiconductor active layers and the buffer/passivation layer within the same deposition chamber and using the same material source.

  4. Thin film solar cell including a spatially modulated intrinsic layer

    DOE Patents [OSTI]

    Guha, Subhendu (Troy, MI); Yang, Chi-Chung (Troy, MI); Ovshinsky, Stanford R. (Bloomfield Hills, MI)

    1989-03-28T23:59:59.000Z

    One or more thin film solar cells in which the intrinsic layer of substantially amorphous semiconductor alloy material thereof includes at least a first band gap portion and a narrower band gap portion. The band gap of the intrinsic layer is spatially graded through a portion of the bulk thickness, said graded portion including a region removed from the intrinsic layer-dopant layer interfaces. The band gap of the intrinsic layer is always less than the band gap of the doped layers. The gradation of the intrinsic layer is effected such that the open circuit voltage and/or the fill factor of the one or plural solar cell structure is enhanced.

  5. Conductive layer for biaxially oriented semiconductor film growth

    DOE Patents [OSTI]

    Findikoglu, Alp T. (Los Alamos, NM); Matias, Vladimir (Santa Fe, NM)

    2007-10-30T23:59:59.000Z

    A conductive layer for biaxially oriented semiconductor film growth and a thin film semiconductor structure such as, for example, a photodetector, a photovoltaic cell, or a light emitting diode (LED) that includes a crystallographically oriented semiconducting film disposed on the conductive layer. The thin film semiconductor structure includes: a substrate; a first electrode deposited on the substrate; and a semiconducting layer epitaxially deposited on the first electrode. The first electrode includes a template layer deposited on the substrate and a buffer layer epitaxially deposited on the template layer. The template layer includes a first metal nitride that is electrically conductive and has a rock salt crystal structure, and the buffer layer includes a second metal nitride that is electrically conductive. The semiconducting layer is epitaxially deposited on the buffer layer. A method of making such a thin film semiconductor structure is also described.

  6. Ultrasound-Guided Three-In-One Nerve Block for Femur Fractures

    E-Print Network [OSTI]

    Christos, Steve C; Chiampas, George; Offman, Ryan; Rifenburg, Robert

    2010-01-01T23:59:59.000Z

    guidance in regional anesthesia. Br J Anesth. 2005; 94:7-17.provides rapid, effective anesthesia and has also been shownthree-in-one blocks. Anesthesia and Analgesia. 1997; Snoeck

  7. The design, synthesis and properties of pressure-processable biodegradable block copolymers

    E-Print Network [OSTI]

    Lovell, Nathan Gary

    2005-01-01T23:59:59.000Z

    In this thesis, biodegradable block copolyesters were specifically designed and synthesized for their susceptibility to pressure-induced mixing. These baroplastic materials are capable of being processed and molded through ...

  8. Block copolymers for vesicles: self-assembled behavior for use in biomimicry 

    E-Print Network [OSTI]

    Gaspard, Jeffery Simon

    2009-05-15T23:59:59.000Z

    The objective of this research is to investigate synthetic and polypeptide block copolymers, the structures they form, their response to various stimuli in solution and their capabilities for use in biomimicry. The self-assembled structures of both...

  9. Building Blocks for Release Management Unification in Large-Scale Environments

    E-Print Network [OSTI]

    , challenges of unifying them, and basic building blocks for a comprehensive, ITIL-based Release Management that is responsible for introducing changes into the live environment in a controlled manner (see e.g ITIL [5

  10. Rapid Gel Formation and Adhesion in Photocurable and Biodegradable Block Copolymers with High DOPA Content

    E-Print Network [OSTI]

    Rapid Gel Formation and Adhesion in Photocurable and Biodegradable Block Copolymers with High DOPA Content Bruce P. Lee, Chi-Yang Chao, F. Nelson Nunalee, Emre Motan, Kenneth R. Shull, and Phillip B

  11. Using Self-Assembled Block Copolymer Macrostructures for Creating a Model System for Cell Mimicry 

    E-Print Network [OSTI]

    Gaspard, Jeffery Simon

    2011-02-22T23:59:59.000Z

    The objective of this research is to investigate three classes of block copolymers, the vesicle structures they form, their response to stimuli in solution and their capabilities for use in biomimicry. The self-assembled ...

  12. Covalent Stabilization of Nanostructures: Robust Block Copolymer Templates from Novel Thermoreactive Systems

    E-Print Network [OSTI]

    Harth, Eva M.

    platforms for the fabrication of nanostruc- tured devices for advanced storage and microelec- tronicCovalent Stabilization of Nanostructures: Robust Block Copolymer Templates from Novel, crosslinked nanostructure with greater processing and fabrication potential. © 2005 Wiley Periodicals, Inc. J

  13. Sacrificial-Post Templating Method for Block Copolymer Self-Assembly

    E-Print Network [OSTI]

    Alexander-Katz, Alfredo

    A sacrificial-post templating method is presented for directing block copolymer self-assembly to form nanostructures consisting of monolayers and bilayers of microdomains. In this approach, the topographical post template ...

  14. Interior-point solver for convex separable block-angular problems

    E-Print Network [OSTI]

    Jordi Castro

    2014-10-08T23:59:59.000Z

    Oct 8, 2014 ... Abstract: Constraints matrices with block-angular structures are pervasive in Optimization. ... The preconditioner is based on a power series expansion which ... Category 1: Optimization Software and Modeling Systems.

  15. Funding Opportunity Announcement: Recovery Act ? Energy Efficiency and Conversation Block Grants ? Formula Grants

    Broader source: Energy.gov [DOE]

    Funding opportunity announcement for the Energy Efficiency and Conversation Block Grants, an opportunity open from March 26, 2009 to May 26, 2009 for state applicants and June 25, 2009 for local government and tribal applicants.

  16. Performance Analysis of Block Codes over Finite-state Channels in Delay-sensitive Communications

    E-Print Network [OSTI]

    Hamidi Sepehr, Fatemeh

    2014-01-22T23:59:59.000Z

    understand the fundamental limits of forward error correction in non-asymptotic regimes. This dissertation seeks to characterize the performance of block codes over finite-state channels with memory and also evaluate their queueing performance under different...

  17. Use of Methionine Alkylation to Prepare Cationic and Zwitterionic Block Copolypeptide Vesicles

    E-Print Network [OSTI]

    Rodriguez, AR; Choe, U-J; Kamei, DT; Deming, TJ

    2015-01-01T23:59:59.000Z

    poly(L-methionine) 65 -block- poly(L-leucine 0.5 -stat-L-phenylalanine 0.5 ) 20 , M65 (L 0.5 /F 0.5 ) 20 , by its direct alkylation in water

  18. Fabrication and characterization of nanostructures from self-assembled block copolymers

    E-Print Network [OSTI]

    Cheng, Joy, 1974-

    2003-01-01T23:59:59.000Z

    Nanoscale magnetic dot arrays have attracted considerable interest, both for fundamental studies of micromagnetism and for possible applications in high-density magnetic data storage. Self-assembled block copolymers provide ...

  19. Research on Heat Resisting Character of Hollow Building Blocks in Energy Saving Wall

    E-Print Network [OSTI]

    Zhang, Y.; He, J.; Gao, S.

    2006-01-01T23:59:59.000Z

    By establishing a mathematical model with the finite difference method, the three-dimensional temperature fields of a new type of asymmetrical hollow building blocks in an energy saving wall are solved in this paper. The three forms of heat...

  20. Heat treatment optimization in the manufacture of Wilson Rockwell steel hardness test blocks

    E-Print Network [OSTI]

    Tan, Vincent Tandean

    2009-01-01T23:59:59.000Z

    The heat-treatment process in the manufacture of Wilson Rockwell steel hardness test blocks often produces parts which are inconsistent in the mean hardness and hardness uniformity. In this thesis, the sources of variation ...