Sample records for vg vg vg

  1. 1 (, 4/14/00), LBNL and NASA Ames Research Center Computational, Data, and

    E-Print Network [OSTI]

    1 (, 4/14/00), LBNL and NASA 2 (, 4/14/00), LBNL and NASA Ames;3 (, 4/14/00), LBNL and NASA Ames Research

  2. 1 (, 4/14/00), LBNL and NASA Ames Research Center Computational, Data, and

    E-Print Network [OSTI]

    1 (, 4/14/00), LBNL and NASA 2 (, 4/14/00), LBNL and NASA Ames (, 4/14/00), LBNL and NASA Ames Research

  3. 1 (, 4/14/00), LBNL and NASA Ames Research Center Computational, Data, and

    E-Print Network [OSTI]

    1 (, 4/14/00), LBNL and NASA #12;2 (, 4/14/00), LBNL and NASA Ames;3 (, 4/14/00), LBNL and NASA Ames Research

  4. Sandia VG Template

    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:Energy: Grid Integration Redefining What's PossibleRadiationImplementingnpitcheResearch Briefs The annually publishedNuclear SecurityCompany

  5. Energy Storage Management for VG Integration (Presentation)

    SciTech Connect (OSTI)

    Kirby, B.


    This presentation describes how you economically manage integration costs of storage and variable generation.

  6. (Vg = 2 volts, Fp = 3,7 volts). Dans le circuit

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    the process is incom- plete. But since it is advantageous to have thermionic convertors workingat temperatures and the latter was used simultaneously for the ionization process. In general, when the energy to be converted

  7. Cyclotron Radiopharmaceuticals Production at the V.G. Khlopin Radium Institute

    SciTech Connect (OSTI)

    Solin, L.M.; Kudelin, B.K.; Jakovlev, V.A.; Potapova, T.S.; Gromova, E.A. [V.G.Khlopin Radium Institute, 2nd Murinsky pr., 28, 194021 St. Petersburg (Russian Federation)


    For more than 10 years Radium Institute is producing radiopharmaceuticals for St. Petersburg (Russia) hospitals. We have developed technologies for sodium iodide, sodium iodohippurate, MIBG and BMIPP, labeled by iodine-123, and gallium-67 citrate. Radionuclidic purity of 99,98% is reached for radiopharmaceuticals labeled by iodine-123. Radionuclidic purity is over 99.9% for gallium-67 citrate on the date of delivery. Radiochemical purity of 95% and more is reached through the application of appropriate technologies for each RPH. It takes no longer than 4 hours for all technologies. Over 150,000 patients were investigated.

  8. Energy Storage Management for VG Integration (Presentation), NREL (National Renewable Energy Laboratory)

    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 Power AdministrationField8, 2000Consumption Survey (CBECS)LaboratorySmart-Reserved-Power

  9. REVUE DE PHYSIQUE APPLIQUE Simulation d'un transistor MOS silicium-sur-isolant dsertion profonde

    E-Print Network [OSTI]

    Boyer, Edmond

    (Vg1, Vg2) à faible tension de drain. Les caractéristiques Id(Vg2) simulées sont comparées aux and hole densities, as a function of the applied front (Vg1) and back (Vg2) gate voltages. We also deduce the Id(Vg1, Vg2) characteristics in the case of low drain voltage. The simulated Id(Vg2) characteristics

  10. Microarray Analysis on Human Neuroblastoma Cells Exposed to Aluminum, Beta1–42-Amyloid or the Beta1–42-Amyloid Aluminum Complex

    E-Print Network [OSTI]


    the experiments: DD KF MTV LDC. Analyzed the data: VG KFanalysis tools: VG DD KF MTV LDC SLS PZ. Wrote the paper: VG

  11. JOURNAL OF GEOPHYSICAL RESEARCH, VG ,. 96, NO. B$, PAGES 8407-8415, MAY 10, 1991 DifferentialRotation BetweenLithosphereand Mantle'

    E-Print Network [OSTI]

    Dipartimento di Fisica, Settore Geofisica, Universitd di Bologna, Italy CARLO DOGLIONI Dipartimento di Scienze Geologiche,Universitd di Ferrara, Italy ROBERTO SABADINI2 Dipartimento di Fisica, Settore Geofisica

  12. Postal address P.O. Box 118, SE-221 00 LUND Visiting address John Ericssons vg 3 Telephone switchboard +46 46-222 00 00 E-mail Internet

    E-Print Network [OSTI]

    switchboard +46 46-222 00 00 E-mail Internet International Office Telephone switchboard +46 46-222 00 00 E-mail Internet ARGENTINA Sciences (Lahti Yrkeshögskola) Oulun yliopisto Tampereen Teknillinen Korkeakoulu University of Lapland

  13. Name Address Place Zip Sector Product Stock Symbol Year founded...

    Open Energy Info (EERE)

    Dag Hammarskjlds vg B Uppsala S Marine and Hydrokinetic http http www currentpower se Sweden Current Power AB Dag Hammarskjlds vg B Uppsala S Marine and Hydrokinetic http http www...

  14. Non-linear modulation of a boundary layer induced by vortex generators

    E-Print Network [OSTI]

    Wesfreid, José Eduardo

    the efficiency of static mixers.6 Nevertheless, the question of the choice and design of the proper VG

  15. Postadress Box 118 Besksadress John Ericssons vg 3 Telefon dir INT-46-46-222 3423, vxel INT-46-46-222 00 00 Telefax INT-46-46-222 4531 E-post Internet

    E-Print Network [OSTI]

    Skånes vindkraftsakademi och delas ut i samarbete med E.ON Värme och Serviceförvaltningen i Malmö stad

  16. Changes in the Economic Value of Variable Generation at High Penetration Levels: A Pilot Case Study of California

    E-Print Network [OSTI]

    Mills, Andrew


    the small amount of incumbent coal generation, and increasedamount of incumbent coal generation is also displaced by VG.including incumbent coal and nuclear generation. Expanding

  17. 2006 Long Range Development Plan Final Environmental Impact Report

    E-Print Network [OSTI]

    Philliber, Jeff


    locations. V.G.2 Impacts Environmental effects at the hillThis EIR IV. Environmental Setting, Impacts, and Mitigationanalysis of environmental impacts, and actual development

  18. U.S. Department of Energy Categorical Exclusion ...

    Broader source: (indexed) [DOE]

    AikenSouth Carolina The Analytical Development VG PlasmaQuad II Inductively Coupled Plasma Mass Spectrometers (ICPMS) perform elemental and isotopic analysis on liquid samples....

  19. Changes in the Economic Value of Variable Generation at High Penetration Levels: A Pilot Case Study of California

    E-Print Network [OSTI]

    Mills, Andrew


    to a power system based on load, VG profile, and capacitiespower system operations and dispatch with variable generation, including hourly generation and load profiles,

  20. Changes in the Economic Value of Variable Generation at High Penetration Levels: A Pilot Case Study of California

    E-Print Network [OSTI]

    Mills, Andrew


    demand, more flexible thermal generation, and lower costof VG technologies), more flexible thermal generation, pricedemand, more flexible thermal generation, and low-cost bulk-

  1. Charge Storage Behavior of Nanowire Transistors Functionalized with Bis(terpyridine)-Fe(II) Molecules: Dependence on Molecular Structure

    E-Print Network [OSTI]

    Zhou, Chongwu

    wafer with patterned source/drain electrodes.9 The devices exhibit typical n-type FET behavior.5 molecules/nm2 for molecule 1, 2, and 3, respectively.11 A negative voltage pulse on the silicon back gate. These processes can be monitored by I-Vg curves that show the drain current (I) as a function of gate voltage (Vg

  2. 1.0 GAS TRANSFER An important process used in water and wastewater treatment. Also very important when

    E-Print Network [OSTI]

    Stenstrom, Michael K.

    1.0 GAS TRANSFER An important process used in water and wastewater treatment. Also very important = CL (CL + HcVG) (6) where CL = liquid phase concentration, VL = liquid volume, CG = gas phase concentration, VG = gas volume, Hc = dimensionless Henry's law coefficient and M = mass of gas. Now use two

  3. Systematic Comparison of Operating Reserve Methodologies: Preprint

    SciTech Connect (OSTI)

    Ibanez, E.; Krad, I.; Ela, E.


    Operating reserve requirements are a key component of modern power systems, and they contribute to maintaining reliable operations with minimum economic impact. No universal method exists for determining reserve requirements, thus there is a need for a thorough study and performance comparison of the different existing methodologies. Increasing penetrations of variable generation (VG) on electric power systems are posed to increase system uncertainty and variability, thus the need for additional reserve also increases. This paper presents background information on operating reserve and its relationship to VG. A consistent comparison of three methodologies to calculate regulating and flexibility reserve in systems with VG is performed.

  4. Changes in the Economic Value of Variable Generation at High Penetration Levels: A Pilot Case Study of California

    E-Print Network [OSTI]

    Mills, Andrew


    based on solar trough or parabolic dish technology) to PV astechnologies: wind, single-axis tracking photovoltaics (PV), 1 concentrating solarTechnology High Penetration of VG Single-Axis PV CSP w/ 6hr TES Wind Solar

  5. Strong Room-temperature Negative Transconductance In An Axial...

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

    a Si-based device. We characterize the NTC characteristics over a range of gate VG and drain VD voltages, finding that NTC persists down to VD –50 mV. The physical...

  6. CX-010116: Categorical Exclusion Determination

    Broader source: [DOE]

    Operation, Maintenance, and End of Life of VG PlasmaQuad II ICPMS Units CX(s) Applied: B3.6 Date: 03/28/2013 Location(s): South Carolina Offices(s): Savannah River Operations Office

  7. Changes in the Economic Value of Variable Generation at High Penetration Levels: A Pilot Case Study of California

    E-Print Network [OSTI]

    Mills, Andrew


    PV REC RPS RT SAM T&D TES WECC WREZ WWSIS VG VOLL AncillaryCoordinating Council (WECC). Council (WECC). TEPPC TAS 2020 Dataset


    E-Print Network [OSTI]

    of Norway. Permanent address of the second author is University of Montenegro, Faculty of Mathematics, Cetinjski put bb, 81000 Podgorica, Montenegro. 1 #12;2 V.G. DANILOV AND D. MITROVIC t R+ passage from

  9. cDNA cloning and transcriptional regulation of the vitellogenin receptor from the imported fire ant, Solenopsis invicta Buren (Hymenoptera: Formicidae) 

    E-Print Network [OSTI]

    Chen, Mei-Er


    Receptors that transport vitellogenin into oocytes are of vital importance to egg-laying species because they promote oocyte development. In this study, we describe the cloning of the first hymenopteran vitellogenin receptor (VgR) cDNA. Using...

  10. Strategies for Mitigating the Reduction in Economic Value of Variable Generation with Increasing Penetration Levels

    SciTech Connect (OSTI)

    Mills, Andrew; Wiser, Ryan


    In this report, we evaluate individual options that have the potential to stem the decline in the marginal value of variable generation (VG) with increasing penetration levels. We focus only on the effectiveness of mitigation measures for wind and PV.

  11. Spherical Carbon with Unique Architectures and Properties

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

    Spherical Carbon with Unique Architectures and Properties V.G. Pol, K.C. Lau, L.A. Curtiss, J.G. Wen, D.J. Miller, and M.M. Thackeray, Argonne National Laboratory Carbon atoms can...

  12. Data report: High-resolution stable isotope stratigraphy of the late Middle Eocene at Site 1051, Blake Nose

    E-Print Network [OSTI]

    Wade, Bridget S.; Norris, Richard D.; Kroom, Dick


    samples were analyzed isotopically using a VG Isogas Prism III mass spectrometer at the University of Edinburgh, Scotland. Normal corrections were employed, and results of stable iso- tope measurements are expressed in parts per thousand relative...

  13. Treinta años de dramaturgia en el Perú (1950-1980)

    E-Print Network [OSTI]

    Dí az, Gré gor


    para la ingeniería, el vuelo necesario para proyectar la ilusión. SPRING 1998 179 En Collacocha, v.g., la cabana debe estremecerse ante sucesivos temblores; los movimientos y ruidos que logra la tramoya deben producir los efectos del sismo, sin...

  14. Sideband Transitions and Two-Tone Spectroscopy of a Superconducting Qubit Strongly Coupled to an On-Chip Cavity

    E-Print Network [OSTI]

    , limited to static nearest neighbor couplings. By coupling individual qubits to a common harmonic to a SQUID oscillator also used LO bias teemicrowave drives amp.circulator mixer IFRF Cin L CJ,EJ Cout Vg V

  15. The PUCOT for measuring dynamic Young's modulus for the B?-CoAl, FeAl and NiAl alloys

    E-Print Network [OSTI]

    Harmouche, Mahmoud Redwan


    /Vg and Vg In this form, many researchers have employed this tech- nique both at room and higher temperatures [40-45]. In 1974, Robinson and Edgar [46] derived the equivalent electrical circuit and the resulting equations for the same apparatus... the PUCOT equations. Nevertheless, the equations for the modulus of elasticity, stress and strain for an elastic bar will be derived from a mechanical point of view. The equations are then incorporated into the Robinson and Edgar general equa- tions...

  16. Prepared for the U.S. Department of Energy under Contract DE-AC02-76CH03073. Princeton Plasma Physics Laboratory

    E-Print Network [OSTI]

    -KN Code N.N. Gorelenkov, C.Z. Cheng, V.G. Kiptily, M.J. Mantsinen, S.E. Sharapov, and the JET-KN code1 N. N. Gorelenkov 1), C. Z. Cheng 1), V.G. Kiptily 2), M. J. Mantsinen 3), S. E. Sharapov 2 on fishbones and n=1 kinks in JET simulated by a non-perturbative NOVA-KN code N. N. Gorelenkov 1), C. Z

  17. Impact of Wind and Solar on the Value of Energy Storage

    SciTech Connect (OSTI)

    Denholm, P.; Jorgenson, J.; Hummon, M.; Palchak, D.; Kirby, B.; Ma, O.; O'Malley, M.


    This analysis evaluates how the value of energy storage changes when adding variable generation (VG) renewable energy resources to the grid. A series of VG energy penetration scenarios from 16% to 55% were generated for a utility system in the western United States. This operational value of storage (measured by its ability to reduce system production costs) was estimated in each VG scenario, considering provision of different services and with several sensitivities to fuel price and generation mix. Overall, the results found that the presence of VG increases the value of energy storage by lowering off-peak energy prices more than on-peak prices, leading to a greater opportunity to arbitrage this price difference. However, significant charging from renewables, and consequently a net reduction in carbon emissions, did not occur until VG penetration was in the range of 40%-50%. Increased penetration of VG also increases the potential value of storage when providing reserves, mainly by increasing the amount of reserves required by the system. Despite this increase in value, storage may face challenges in capturing the full benefits it provides. Due to suppression of on-/off-peak price differentials, reserve prices, and incomplete capture of certain system benefits (such as the cost of power plant starts), the revenue obtained by storage in a market setting appears to be substantially less than the net benefit (reduction in production costs) provided to the system. Furthermore, it is unclear how storage will actually incentivize large-scale deployment of renewables needed to substantially increase VG penetration. This demonstrates some of the additional challenges for storage deployed in restructured energy markets.

  18. Probabilistic Approach to Quantifying the Contribution of Variable Generation and Transmission to System Reliability: Preprint

    SciTech Connect (OSTI)

    Ibanez, E.; Milligan, M.


    The increasing electrical load served by variable generation (VG), such as wind and solar energy, in the United States and many other countries has stimulated an interesting line of research to better quantify the capacity value of these resources. Methods applied traditionally to thermal units based on their average outage rates do not apply to VG because of their uncertain and non-dispatchable nature. The North American Electric Reliability Corporation's Integration of Variable Generation Task Force recently released a report that highlighted the need to develop and benchmark underlying loss-of-load expectation and related metrics that reasonably and fairly calculate the contribution to planning reserves, or capacity value, of solar and wind power. As the fraction of generation coming from VG becomes more significant, their estimated capacity value will have a larger impact on system planning. In this paper, we provide a method to include VG in traditional probabilistic-based adequacy methods. This method has been implemented in the Renewable Energy Probabilistic Resource Assessment tool developed at the National Renewable Energy Laboratory. Through an example based on the U.S. Western Interconnection, this method is applied to assess the effect that transmission can have on resource adequacy. We also analyze the interactions between available transmission and capacity value for VG.

  19. Thermoelectric transport through strongly correlated quantum dots

    E-Print Network [OSTI]

    Costi, T A; 10.1103/PhysRevB.81.235127


    The thermoelectric properties of strongly correlated quantum dots, described by a single level Anderson model coupled to conduction electron leads, is investigated using Wilson's numerical renormalization group method. We calculate the electronic contribution, $K_{\\rm e}$, to the thermal conductance, the thermopower, $S$, and the electrical conductance, $G$, of a quantum dot as a function of both temperature, $T$, and gate voltage, ${\\rm v}_g$, for strong, intermediate and weak Coulomb correlations, $U$, on the dot. For strong correlations and in the Kondo regime, we find that the thermopower exhibits two sign changes, at temperatures $T_{1}({\\rm v}_g)$ and $T_{2}({\\rm v}_g)$ with $T_{1}law in ...

  20. The slopes determined by n points in the plane

    E-Print Network [OSTI]

    Martin, Jeremy L.


    field k,andletG be a graph with vertices V and edges E.Apicture P of G consists of a point P(v)for each vertex and a line P(e) for each edge, subject to the condition that P(v) ? P(e) whenever v is an endpoint of e.Thusthedataofn points and parenleftbig... of generic pictures is called the picture variety V(G). This is an irreducible component of X(G) of dimension 2|V |. Passing to an affine open subset ˜ V(G) ? V(G) and projecting onto an affine space A |E| k whose coordinates correspond to the slopes of lines...

  1. The effect of various mixers on the viscosity and flow properties of an oil well drilling fluid

    E-Print Network [OSTI]

    Spannagel, Johnny Allen


    of Texas in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE January, 1957 MaJor SubJect. Petroleum Englneerlng THE EFFECT OF VARIOUS MIXERS ON THE VISCOSITY AND FLOW PROPERTIES QF AN OIL WELL DRILLING FLUID A Thesis... on the 300 rpm Farm V-G Meter Reading 15 The Effect of Various Mixers on the 600 rpm Farm V-G Meter Reading 15 The Effect of Various Mixers on the Plastic Viscosity of a Bentonite Mud 16 Temperature Variation of the Drilling Mud Mixed in Variou...

  2. Strong Room-temperature Negative Transconductance In An Axial Si/Ge Hetero-nanowire Tunneling Field-effect Transistor

    SciTech Connect (OSTI)

    Zhang, Peng; Le, Son T.; Hou, Xiaoxiao; Zaslavsky, A.; Perea, Daniel E.; Dayeh, Shadi A.; Picraux, Samuel T.


    We report on room-temperature negative transconductance (NTC) in axial Si/Ge hetero-nanowire tunneling field-effect transistors (TFETs). The NTC produces a current peak-to-valley ratio > 45, a high value for a Si-based device. We characterize the NTC characteristics over a range of gate VG and drain VD voltages, finding that NTC persists down to VD = –50 mV. The physical mechanism responsible for the NTC is the VG-induced depletion in the p-Ge section that eventually reduces the maximum electric field that triggers the tunneling ID, as confirmed via three-dimensional TCAD simulations.

  3. Analysis of Genetic Diversity and Relationships in the China Rose Group

    E-Print Network [OSTI]

    Soules, Valerie Ann


    ) Polyantha White Pet P1 ARE Perle d'Or P2 CRN Ma Paquerette P3 Moore Mignonette P4 VG High Country Mignonette P5 VG 13 Table 1. Continued Cultivar or species name x Sample number Source y Bourbon Coquette des Blanches B1 ARE Great... Diploid N4, Blush Noisette 78 N5, Jaune Deprz 83 6e'Ac 8 N9, Marechal Niel 74 P1Whit Pet 78 2, Perld'Or P3Ma Pquete 30 4, igno 39 P5, High Country Mignonette 43 B7, Mrs. Bosanquet 74 T1, Bon Silen...

  4. Transmission Dr. Sandra Cruz-Pol

    E-Print Network [OSTI]

    Cruz-Pol, Sandra L.

    Transmission Lines Dr. Sandra Cruz-Pol ECE Dept. UPRM Exercise 11.3 n A 40-m long TL has Vg=15 Vrms to electric circuits! cmc kmc GHz Hz 15000,000,2000/ 000,560/ 2 60 == == Transmission Lines I. TL parameters-wave transformer ¨ Slotted line ¨ Single stub VI. Microstrips Transmission Lines (TL) n TL have two conductors

  5. Fabrication and characterization of modulation-doped-field-effect-transistors with antidot-patterned passivation layers

    E-Print Network [OSTI]

    Hwang, Sung Woo

    , and S. K. Min Semiconductor Materials Research Center, Korea Institute of Science and Technology, P. O nano-fabrication technology has been utilized successfully in fabricating new concept devices depletion layers extending underneath the polymer can pinch off the whole channel at a similar VG

  6. Temperature dependence of 1/f noise mechanisms in silicon nanowire biochemical field effect transistors

    E-Print Network [OSTI]

    Reed, Mark

    drain bias and at different temperatures 100­300 K . We observe a change in the noise mechanism.g., Hooge parameter compared to dry etching techniques.14 The devices are used in the back- gated configuration, where the gate voltage Vg is applied to the handle layer of the SOI wafer. The source-drain bias

  7. Energies 2012, 5, 718-730; doi:10.3390/en5030718 ISSN 1996-1073

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    consumption in industrial gas production sites, by producing electrical power from exothermic processes hydrofluoro-olefin GWP Global Warming Potential Subscripts c critical o ambient p pump t turbine vg vapour, by their properties, to overcome the global irreversibility according to the studied resource. Supercritical

  8. Report to Congress on Server and Data Center Energy Efficiency

    E-Print Network [OSTI]

    LBNL-363E Report to Congress on Server and Data Center Energy Efficiency: Public Law 109 to Congress on Server and Data Center Energy Efficiency: Public Law 109-431 Author: Brown, Richard Publication:// Keywords: data centers, computers, Energy Star, information technology, servers, energy

  9. comparator Feed CCM/DCM modification

    E-Print Network [OSTI]

    Corrector g + + _ ++ + _ + _ avL CCM/DCM modification Digital Controller _ Driver ADC sDCM iac vac vg iL v PFC. Modifications related to the proposed CCM/DCM predictive current control methods include (CCM) and in DCM. Furthermore, adaptive switching and adaptive switching frequency techniques

  10. Wide-Range Robust Control of Combustion Instability BOE-SHONG HONG, ASOK RAY, and VIGOR YANG*

    E-Print Network [OSTI]

    Ray, Asok

    time V Volume of combustion chamber Un Control input of nth mode vg Velocity of gas phase z AxialWide-Range Robust Control of Combustion Instability BOE-SHONG HONG, ASOK RAY, and VIGOR YANG This paper presents the concept and design of a two-layer robust control system for suppression of combustion

  11. Sub-mHz MOSFET 1/f noise measurements S. Mandal, S.K. Arfin and R. Sarpeshkar

    E-Print Network [OSTI]

    Sarpeshkar, Rahul

    to the transistor noise. Results: The gate voltage VG droops along with the battery voltage: DVG ' 0.6DVbat that the allowable battery droop is limited by this requirement to 0.6 (DI/I¯)VL, where DI/I¯ is the percentageV gives us DVbat ¼ 30 mV. Experimentally, the battery voltage drooped at an approximately constant rate

  12. PALM / LES seminar RIAM 2009 PALM Using topography (II) Contents Using topography (II)

    E-Print Network [OSTI]

    Raasch, Siegfried

    PALM / LES seminar ­ RIAM 2009 PALM ­ Using topography (II) 1 Contents ­ Using topography (II of good practise · Exercise ­ Questions ­ Hints #12;PALM / LES seminar ­ RIAM 2009 PALM ­ Using topography constant bulk velocity initializing_actions = 'set_constant_profiles', ug_surface = 1.0, vg_surface = 0

  13. Experimental Dynamic Forced Performance of a Centrally Grooved, End Sealed Squeeze Film Damper

    E-Print Network [OSTI]

    Mahecha Mojica, Lady Paola


    the damper lands. An ISO VG2 lubricant is supplied to the SFD via three radial holes that discharge lubricant into the central groove. The lubricant passes through the damper lands and across the piston ring seals to finally exit the damper at ambient...

  14. Identification of Force Coefficients in Two Squeeze Film Dampers with a Central Groove

    E-Print Network [OSTI]

    Seshagiri, Sanjeev


    clearance c; each damper with two parallel film land lengths L= 1/5 D and 2L, separated by a feed groove of width L and depth 3/4 L. ISO VG 2 grade lubricant oil flows into the central groove via 3 orifices, 120 degrees apart, and then through the film lands...

  15. Silicon single-electron quantum-dot transistor switch operating at room temperature

    E-Print Network [OSTI]

    , which showed drain current oscillations at room temperature. These oscillations are attributed current­voltage characteristic indicates that the energy level separation is about 110 meV and the silicon current (Id) as a function of the gate voltage (Vg) (I­V) was measured at different temperatures

  16. VOLUME 82, NUMBER 23 P H Y S I C A L R E V I E W L E T T E R S 7 JUNE 1999 Fluctuations and Evidence for Charging in the Quantum Hall Effect

    E-Print Network [OSTI]

    Cobden, David

    dox 25 nm and a range of effective channel dimensions L and W from 0.4 to 4 mm [9]. Each device on the metallic polysilicon gate: dr dVg C e 8.6 3 1011 cm22 V21 , where C eoxe0 dox and eox 3.9 [13

  17. Role of holes in the isotope effect and mechanisms for the metaloxidesemiconductor device degradation

    E-Print Network [OSTI]

    Chen, Zhi

    degradation Zhi Chen,a) Pradeep Garg,b) and Vijay Singh Department of Electrical Engineering, University degradation phenomena. The isotope effect is exclusively due to hot electrons, not hot holes. Holes might break the Si­O bonds to generate interface traps at VG near VT . The dominant degradation mechanism

  18. Exam 3 Solution

    E-Print Network [OSTI]

    If f(—5) : —l and f'(;r) g —3, then the mean value theorem guarantees that f(—2) s —10. M MWMM (lliewwwhu M M é, B. f(_2)2_w. 1502,5182). : {VG 5'3 C. f(_2)§ ...


    E-Print Network [OSTI]

    Forster, Otto

    JkXTPz+7Yl4TOYTCYmgjRp1c+8A6qvCoVgE5rQBu PA0myo9+emOuP5ZcL8sHkVV1At8QjFQzcdTpec01ibdxY1twEDDBZnzy+tws 4Uf5


    E-Print Network [OSTI]

    Forster, Otto

    JkXTPz+7Yl4TOYTCYmgjRp1c+8A6qvCoVgE5rQBu PA0myo9+emOuP5ZcL8sHkVV1At8QjFQzcdTpec01ibdxY1twEDDBZnzy+tws 4Uf5

  1. Copeia,1988(3),pp. 636-641 A New Diminutive Frog from Hispaniola

    E-Print Network [OSTI]

    Hedges, Blair

    Copeia,1988(3),pp. 636-641 A New Diminutive Frog from Hispaniola (Leptodactylidae species from Hispaniola and one of the smallest in the genus. THE Massifde la Hotte lies at the end HISPANIOLA *1vg- I, B t.. Fig. 1. Eleutheroda

  2. Al-Hamdan, M. Z.; Crosson, W. L.; Limaye, A. S.; Rickman, D. L.; Quattrochi, D. A.; Estes, M.

    E-Print Network [OSTI]

    (8):33- 41, 55-6. · Charleston AE. New Enviornmental Public Health Tracking Network Includes Spatial Analy Public Health Management Practice, 2008, 14(6), 507­514. · Charleston AE, Banerjee A, Carande-Kulis VG. J Public Health Management Practice, 2008, 14(6), 600-604. · Conti, L., Kearney, G, Whitehead

  3. The effect of temperature on the formation resistivity factor of porous media

    E-Print Network [OSTI]

    Brannan, Geryl Owen


    circu' t. VG Thc cs' circuit voltages w ze read using a Hewlett Peel:az! ' vvc "ac vol tm ter. The overburden prcssure i as monitored with a Hcise 5000 psi prcssure gua c. T! c core pressure was read from a Helicoid 300 psi test guage. Thc...

  4. Prospect of Tunneling Green Transistor for 0.1V CMOS Chenming Hu1*

    E-Print Network [OSTI]

    Javey, Ali

    the voltage VDD is a powerful way to reduce IC energy consumption, which is proportional to VDD 2 . Power and ITRS projection. Slowdown since 90nm leads to accelerated rise in energy consumption. Ec Ev Cox Vg, University of California, Berkeley, USA; 2 International SEMATECH, Austin, TX 78741, USA.* Tel: 1

  5. hal-00267005,version1-27Mar2008 Modeling semiconductor thermal properties. The dispersion role.

    E-Print Network [OSTI]

    Boyer, Edmond

    in many domains such as nano- junctions1 , transistors2 , or in solar panels3 , and are even used in solar cells. At these low scale, Fourier's law may give an inaccurate description of heat transfer . Thus, the energy flux per apparent surface unit at point r in direction u reads: I,p(r, u) = n(r, u) Vg

  6. Faculty of Mechanical Science and Engineering At the Institute of Materials Science, Chair of Materials Science and Nanotechnology

    E-Print Network [OSTI]

    Schubart, Christoph

    of Materials Science and Nanotechnology (Prof. G. Cuniberti), is open to work in the field of biomaterials and / or biologically inspired nanotechnology the position of a Senior Lecturer and Research Group leader (max. E 14 TV (Wissenschaftszeitvertragsgesetz ­ WissZeitVG). The scientific activities of the Chair of Materials Science and Nanotechnology

  7. Alkaline metal-doped n-type semiconducting nanotubes as quantum dots Jing Kong, Chongwu Zhou, Erhan Yenilmez, and Hongjie Daia)

    E-Print Network [OSTI]

    Zhou, Chongwu

    . The dispenser consists of a potassium salt and resistive heater, and is placed at about 1 cm away from recorded under a bias V 1 mV incremental step in Vg 25 mV at various temperatures. The conductance

  8. ac Stark Shift and Dephasing of a Superconducting Qubit Strongly Coupled to a Cavity Field D. I. Schuster, A. Wallraff, A. Blais, L. Frunzio, R.-S. Huang,* J. Majer, S. M. Girvin, and R. J. Schoelkopf

    E-Print Network [OSTI]

    Wallraff, Andreas

    "i [see Fig. 1(b)], is determined by its electro- static energy Eel 4EC1 ÿ ng and its Josephson cou bias tee RF amp mixer IFRF Cin L CJ,EJ Cout Vg V Cg LO C Ea EJ 0

  9. Moving-Boundary Heat Exchanger Models with Variable Outlet Phase, ASME Journal of Dynamic Systems, Measurement, and Control 

    E-Print Network [OSTI]

    Eldredge, B.D; Rasmussen, B.P.; Alleyne, A.


    equations for the receiver. #6; #8; d#1;g dPc Vgug + d#1; f dPc Vfuf + dug dPc #1;gVg + duf dPc #1; fVf ? #8; #1;gug ? #1; fuf #1;g ? #1; f #3; #8; d#1;g dPc Vg + d#1; f dPc Vf #7;P? c + #6; #1;gug ? #1; fuf #1;g ? #1; f #7; m?rec = m?inhin ? m... the refrigerant and the surrounding air. The PDEs are inte- rated using the Leibniz integration rule given in Eq. #3;4#4;. The onservation of momentum equation is neglected by assuming a niform pressure along the length of the heat exchanger #1;6–9#2;. #3;Cp#1;A#4...

  10. Southern corn rootworm control

    E-Print Network [OSTI]

    Wipprecht, Read


    in all tbe plots ssjcing reylaccting neoesssrN, Expericent No, 4. vas a dupjisate of lbrperisant No, 1 aud vas oondust ed aa Nurleson else ~ soL1 and ad)aoent to Rq?raiment N'o, 2, Cbcs occrn rootsorm damaged plant vas found in a obeob plcct, R... Vg 0 7$ 0 74 0 7& 0 0 0 0 93 0 0 92 0 90 0 90 0 88 0 88 0 95 0 0 0 0 0 3 2 78 73 Vg 75 XETAIL OF TABES 1 Kxyer %naacp Ro RHLLKIS OF VARIA5CE 30, 00 33, 21 0 00 0~00 10, 00 14~ 5 V5 33, %j K, 9Q 27 A +36 ~65 RC $2 35~4~ 365T...

  11. Market-Based Indian Grid Integration Study Options: Preprint

    SciTech Connect (OSTI)

    Stoltenberg, B.; Clark, K.; Negi, S. K.


    The Indian state of Gujarat is forecasting solar and wind generation expansion from 16% to 32% of installed generation capacity by 2015. Some states in India are already experiencing heavy wind power curtailment. Understanding how to integrate variable generation (VG) into the grid is of great interest to local transmission companies and India's Ministry of New and Renewable Energy. This paper describes the nature of a market-based integration study and how this approach, while new to Indian grid operation and planning, is necessary to understand how to operate and expand the grid to best accommodate the expansion of VG. Second, it discusses options in defining a study's scope, such as data granularity, generation modeling, and geographic scope. The paper also explores how Gujarat's method of grid operation and current system reliability will affect how an integration study can be performed.


    E-Print Network [OSTI]

    Adler, Isolde

    , · linklessly/knotlessly embeddable graphs · C, D minor ideals C D, C D minor ideals · C minor ideal Capex minor ideal Capex := {G | v V(G) such that G \\ v C} ISOLDE ADLER COMPUTING EXCLUDED MINORS 5/18 #12 graphs · C, D minor ideals C D, C D minor ideals · C minor ideal Capex minor ideal Capex := {G | v

  13. Leakage current models of thin film silicon-on-insulator devices Hank Shin,a)

    E-Print Network [OSTI]

    Schroder, Dieter K.

    , as published previously.2 Target device sizes were 25 0.6 and 0.6 0.6 m2 in the active regions. Drain current-gate bias (Id ­Vg) measurements done at a varying drain bias (Vd) both on an automatic tester punchthrough effect, C n-type back channel effect, D defect-induced leakage, and E edge-induced hump

  14. Geographical Variation in Selection, from Phenotypes to Molecules

    E-Print Network [OSTI]

    Kelly, John K.


    vol. 167, no. 4 the american naturalist april 2006 #1; Geographical Variation in Selection, from Phenotypes to Molecules John K. Kelly* Department of Ecology and Evolutionary Biology, University of Kansas, Lawrence, Kansas 66045 Submitted June 6...- nomic regions that harbor important loci, those respon- 488 The American Naturalist Figure 4: Fraction of ZnS values that reject neutrality as a function of for different parameter combinations of the two-deme model withV /VG n asymmetric migration...

  15. Thermal performance analysis of an electrochromic vacuum glazing with low emittance coatings

    SciTech Connect (OSTI)

    Fang, Yueping; Hyde, Trevor; Hewitt, Neil [Centre for Sustainable Technologies, School of the Built Environment, University of Ulster, Newtownabbey, BT37 0QB N. Ireland (United Kingdom); Eames, Philip C. [Centre for Research in Renewable Energy Science and Technology, University of Loughborough (United Kingdom); Norton, Brian [Dublin Energy Lab, Dublin Institute of Technology, Aungier Street, Dublin 2 (Ireland)


    Thermal performance of an electrochromic (EC) vacuum glazing (VG) was modelled under ASTM standard winter conditions. The EC VG comprised three 0.5 m by 0.5 m glass panes with a 0.12 mm wide evacuated space between two 4 mm thick panes sealed contiguously by a 6 mm wide indium based edge seal with either one or two low-emittance (low-e) coatings supported by a 0.32 mm diameter square pillar grid spaced at 25 mm. The third glass pane on which the 0.1 mm thick EC layer was deposited was sealed to the evacuated glass unit. The whole unit was rebated by 10 mm within a solid wood frame. The low-e coating absorbed 10% of solar energy incident on it. With the EC VG installed with the EC component facing the outdoor environment, for an incident solar radiation of 300 W m{sup -2}, simulations demonstrated that when the EC layer is opaque for winter conditions, the temperature of the inside glass pane is higher than the indoor air temperature, due to solar radiation absorbed by the low-e coatings and the EC layer, the EC VG is a heat source with heat transferred from the glazing to the interior environment. When the emittance was lower to 0.02, the outdoor and indoor glass pane temperatures of the glazing with single and two low-e coatings are very close to each other. For an insolation of 1000 W m{sup -2}, the outdoor glass pane temperature exceeds the indoor glass pane temperature, consequentially the outdoor glass pane transfers heat to the indoor glass pane. (author)

  16. Inheritance of grain sorghum seedling characters and their linkage with specific chromosomes using trisomics

    E-Print Network [OSTI]

    Hanna, Wayne William


    INHERITANCE OF GRAIN SORGHUH SEEDLING CHARACTERS AND THEIR LINKAGE 'WITH SPECIFIC CHROHOSOI'IES USIiVG TRISOHICS A Thesis Wayne William Hanna Approved as to style and content by: (Chairman of Committee) (Head of Department) (N b er) (Member.... IV EXPERItiENTAL RESULTS. 12 Seedling Genetic Stocks. Segregation ratios 12 12 Descriptions. 12 Trisomic X Genetic Stock Crosses. 23 Linkage of genes controlling chlorophyll deficient characters 23 Linkage of genes controlling coleoptile...

  17. Mathieu Moonshine and the Geometry of K3 Surfaces

    E-Print Network [OSTI]

    Thomas Creutzig; Gerald Hoehn


    We compare the moonshine observation of Eguchi, Ooguri and Tachikawa relating the Mathieu group M_24 and the complex elliptic genus of a K3 surface with the symmetries of geometric structures on K3 surfaces. Two main results are that the complex elliptic genus of a K3 surface is a virtual module for the Mathieu group M_24 and also for a certain vertex operator superalgebra V^G where G is the holonomy group.

  18. Thermoelectric transport through strongly correlated quantum dots

    E-Print Network [OSTI]

    T. A. Costi; V. Zlatic


    The thermoelectric properties of strongly correlated quantum dots, described by a single level Anderson model coupled to conduction electron leads, is investigated using Wilson's numerical renormalization group method. We calculate the electronic contribution, $K_{\\rm e}$, to the thermal conductance, the thermopower, $S$, and the electrical conductance, $G$, of a quantum dot as a function of both temperature, $T$, and gate voltage, ${\\rm v}_g$, for strong, intermediate and weak Coulomb correlations, $U$, on the dot. For strong correlations and in the Kondo regime, we find that the thermopower exhibits two sign changes, at temperatures $T_{1}({\\rm v}_g)$ and $T_{2}({\\rm v}_g)$ with $T_{1}< T_{2}$. Such sign changes in $S(T)$ are particularly sensitive signatures of strong correlations and Kondo physics. The relevance of this to recent thermopower measurements of Kondo correlated quantum dots is discussed. We discuss the figure of merit, power factor and the degree of violation of the Wiedemann-Franz law in quantum dots. The extent of temperature scaling in the thermopower and thermal conductance of quantum dots in the Kondo regime is also assessed.

  19. Mass Market Demand Response and Variable Generation Integration Issues: A Scoping Study

    SciTech Connect (OSTI)

    Cappers, Peter; Mills, Andrew; Goldman, Charles; Wiser, Ryan; Eto, Joseph H.


    This scoping study focuses on the policy issues inherent in the claims made by some Smart Grid proponents that the demand response potential of mass market customers which is enabled by widespread implementation of Advanced Metering Infrastructure (AMI) through the Smart Grid could be the “silver bullet” for mitigating variable generation integration issues. In terms of approach, we will: identify key issues associated with integrating large amounts of variable generation into the bulk power system; identify demand response opportunities made more readily available to mass market customers through widespread deployment of AMI systems and how they can affect the bulk power system; assess the extent to which these mass market Demand Response (DR) opportunities can mitigate Variable Generation (VG) integration issues in the near-term and what electricity market structures and regulatory practices could be changed to further expand the ability for DR to mitigate VG integration issues over the long term; and provide a qualitative comparison of DR and other approaches to mitigate VG integration issues.

  20. Nuclear Magnetic Resonance Studies of Resorcinol-Formaldehyde Aerogels

    SciTech Connect (OSTI)

    Moudrakovski, Igor L.; Ratcliffe, C I.; Ripmeester, J A.; Wang, Li Q.; Exarhos, Gregory J.; Baumann, T; Satcher, J H.


    In this article we report a detailed study of resorcinol-formaldehyde (RF) aerogels prepared under different processing conditions, [resorcinol]/[catalyst] (R/C) ratios in the starting sol-gel solutions, using continuous flow hyperpolarized 129Xe NMR in combination with solid-state 13C and two-dimensional wide-line separation (2D-WISE) NMR techniques. The degree of polymerization and the mobility of the cross-linking functional groups in RF aerogels are examined and correlated with the R/C ratios. The origin of different adsorption regions is evaluated using both co-adsorption of chloroform and 2D EXSY 129Xe NMR. A hierarchical set of Xe exchange processes in RF aerogels is found using 2D EXSY 129Xe NMR. The exchange of Xe gas follows the sequence (from fastest to slowest): mesopores with free gas, gas in meso- and micro-pores, free gas with micropores, and, finally, among micropore sites. The volume-to-surface-area (Vg/S) ratios for aerogels are measured for the first time without the use of geometric models. The Vg/S parameter, which is related both to the geometry and the interconnectivity of the pore space, has been found to correlate strongly with the R/C ratio and exhibits an unusually large span: an increase in the R/C ratio from 50 to 500 results in about a 5-fold rise in Vg/S.

  1. Locus of control in hearing impaired children

    E-Print Network [OSTI]

    Overholser, Dewey George


    HARD TEACHER LIKES STORY 45 DOES HI S BEST FATHER HAD EASY DAY 46 3 OOi. 4d 5 ooL~0 NO ONE HELPED NEVER D! D SCHOOLWORK 47 WF i~ imp Shat, sAD e&oi. p pgc Pggi, EVERYONE GOT BAD GRADES DOES NOT LISTEN 48 4 b FATHER HELPS WORKS HARD... j or Su'" j act: 2 s Ycho log Y LOCUS QI' COHTROL HEARIiVG IiMPsnIRED CHILDREVi Tl e sos by DEWEY GEORGE QVERHQLSER 'pproved as to style and conter. t by: C -' p + of Committee I"Iemo iviemb en | g) Head of Department December 198...

  2. Marvell NanoLab Member login Lab Manual Contents MercuryWeb Berkeley Microlab Chapter 7.2

    E-Print Network [OSTI]

    Healy, Kevin Edward

    Sf6. b) 3.Nf3 Vg4 4.Le2 Sc6 5.d4 0-0-0. 3.Nc3 Wa5 (D) XABCDEFGHY 8rsnl+kvlntr( 7zppzp-zppzpp' 6-+-+-+-+& 5wq-+-+-+-% 4-+-+-+-+$ 3+-sN-+-+-# 2PzPPzP-zPPzP" 1tR-vLQmKLsNR! xabcdefghy a) 4.Nf3 Sf6 5.Le2 Black to prevent f5 ...Sf6 5.d3 threatening Ng1-e2-g3 and Pf2-f4-f5 pressure on the kingside Sc6 6.Ld2 Wf5. 4.d4 Sf

  3. strategy.doc 17/11/2005 1/28 strategy.doc 17/11/2005 2/28

    E-Print Network [OSTI]

    Rostock, Universität

    Sf6. b) 3.Nf3 Vg4 4.Le2 Sc6 5.d4 0-0-0. 3.Nc3 Wa5 (D) XABCDEFGHY 8rsnl+kvlntr( 7zppzp-zppzpp' 6-+-+-+-+& 5wq-+-+-+-% 4-+-+-+-+$ 3+-sN-+-+-# 2PzPPzP-zPPzP" 1tR-vLQmKLsNR! xabcdefghy a) 4.Nf3 Sf6 5.Le2 Black to prevent f5 ...Sf6 5.d3 threatening Ng1-e2-g3 and Pf2-f4-f5 pressure on the kingside Sc6 6.Ld2 Wf5. 4.d4 Sf

  4. A procedure for calculating activity time compression in network scheduling systems

    E-Print Network [OSTI]

    Rae, Paul Stewart


    38 4. 0 4. 1 41 42 43 44 45 53 VI. SUM"IAR Y ~ 4 ~ s ~ o ~ ~ ~ ~ ~ ~ ~ 6o APPENDIX ~ ~ e e ~ ~ + ~ e ~ ~ ~ a ~ ~ ~ ~ ~ REFERENCES ~ ~ ~ ~ ~ o ~ ~ ~ ~ o ~ a ~ ~ ~ ~ 62 76 LIST OF TABLES TABLE II. III. Required Dimensions... the form - 8 wm+l bach wi is the current value of w. , i. e. , wi N vi. Therefore - 8 N vm+l N vl vl N v2 vg M 1/N Since N can be made arbitrarily large, 1/M essentially becomes zero. This means s& has the form 23 - 8 vm+1 sk ~ N 0 Dantzig...

  5. Quantum Quasi-Cyclic LDPC Codes

    E-Print Network [OSTI]

    Manabu Hagiwara; Hideki Imai


    In this paper, a construction of a pair of "regular" quasi-cyclic LDPC codes as ingredient codes for a quantum error-correcting code is proposed. That is, we find quantum regular LDPC codes with various weight distributions. Furthermore our proposed codes have lots of variations for length, code rate. These codes are obtained by a descrete mathematical characterization for model matrices of quasi-cyclic LDPC codes. Our proposed codes achieve a bounded distance decoding (BDD) bound, or known as VG bound, and achieve a lower bound of the code length.

  6. TrekISM Issue 13

    E-Print Network [OSTI]


    If IHIIl ~lr~~ ?l1 ~ lUJ lL~=~lUJ~ll)J~lr NEWSLETTER OF THE STAR TREK Special Interest Group **lIltll-* (STG) of MENSA EDITOR'S Hi, Gangl Anyone out there still speaking to me after being severalmonths late wi Jc.hthe' last issue? I.....-dfor-art from Mensa at the AGin June for her work in SUN- FLOdERSEEDS,the Kansas local group newsletter. Congratulations, LaVg,na.You're most deserving of the honor, and we are fortunate to have your lovely con- tributions in TREKisM.~',. ; l...

  7. Inhomogeneous Broadening and the Kosterlitz-Thouless Transition 

    E-Print Network [OSTI]

    COLLINS, M.; Agnolet, Glenn; SASLOW, WM; KROTSCHECK, E.


    variation in p. The numerator is calculated by fixing n, varying A (A = 1 is the background value), and finding the associated variation in p. We have calculated S for models of hydrogen and graphite substrates that are atomically uniform. The model... to the sub- strate, z, is given in A. , and s = 3.6 A.. The potential for graphite, VG. (z), takes the form (16) where e = 48 K and 8 is unchanged, giving a van der 3Waals coefficient of 2240 KA. . The above potential has a minimum at z = 2.75 A...

  8. Numerical modeling of the transient behavior of a thermoelectric Electromagnetic Self-Induced Pump

    E-Print Network [OSTI]

    Djordjevic, Vladimir


    \\ g g t! vrvr Yg Y I rC ?gv ri Yg C rC "E i I ri Cr vg I ri Yg 'I E rCCC Cr rcr rCri r C I r t 'C I vgvgvg I I I 'Ci Ii'I Ii'C 'Cl 'Civic?Tv I E CE ck ck CC CC rvrvrv v v fr 'C 'C I 'CV tv'Cv I rc rc rc rc rc rc r C \\ I I C i I...

  9. Cosmic constraint on unified model of dark sectors in flat and non-flat varying gravitational constant theory

    E-Print Network [OSTI]

    Lu, Jianbo; Wu, Yabo; Xu, Lixin


    Observations indicate that most universal matter are invisible and gravitational constant $G(t)$ maybe depends on the time. The theory of variation of $G$ (VG) is explored in this paper, with naturally resulting to the invisible components in universe. We utilize the observational data: lookback time data, model-independent gamma ray bursts data, growth function of matter linear perturbations, type Ia supernovae data with systematic errors, cosmic microwave background, and baryon acoustic oscillation data from the radial scale measurement and the peak-positions measurement, to restrict the unified model (UM) of dark components in VG theory. Using the best-fit values of parameters with the covariance matrix, constraints on the variation of $G$ are $(\\frac{G}{G_{0}})_{z=3.5}\\simeq 1.0003^{+0.0014}_{-0.0016}$ and $(\\frac{\\dot{G}}{G})_{today}\\simeq 0.7977^{+2.3566}_{-2.3566}\\times 10^{-13} yr^{-1}$ in a flat geometry, the small uncertainties around constants. Limit on equation of state of dark matter is $w_{0dm}=...

  10. Calculation of cross-section for neutron-proton bremsstrahlung at 14 MeV

    E-Print Network [OSTI]

    Uesu, Tadao


    ~V~. 'lyly) i~gig~)]-kixjei)) (V-I) d & J (k r ) Xp, , ~ P -= ? ldcY, , j ~kr)V (r ~7) &&(4+4)J ] (p)) Y' (ex A ) -A. (V-2) xs any well-behaved vector field wnach vanished at x' infinity faster than ?) gp(g x (' iA'- d Qr- (f, ~) =- ? ?. ? ~S...~ ), , ? '-[r i (?)j~ " ~ VI(?i) (V-S) 0 m (g, lx ) =- +&? ' ? & ? f~( Y. '-g((~f) " g v'f(&o] J g's&(;, ) . ~v ~~" i"JZ~g, , "J, (Yr) V*(t'W) c yet-( J (V-d) (v-g) In n-2 (two-. , art&cia) system, the neutron ha no contri thor on the current densxty...

  11. Computer solution of SU(3) crossing matrices for the Kronecker Product 8 x 10

    E-Print Network [OSTI]

    Wells, Alan Harvey


    Ib C-G ygLOE YES 'ERO+r I/0 CRFAIE 0'&Dl 5'li 5 4 5 YES C. G Vill HC ZEKOF OEO S 0 yscu& NO &'&S FliVO 5 KFCXii KCI 0. PHKFE J CTPK a FIVD MOOR OF EKEP77EFFT CKl LC 0' Fl TE C-G VJ&EOE EFROD47CT' CipO2 NO S ~STDPc" t C D E C... for reference. 4, v, y~ V. vgy~ (Z l5) (Izb-I + g ( Yb-Y with ts ( -I) (w, ~?~, ~, ly ~X Jr, ~t;~~??) = 4s'g V~1~g Vg 3 o +i ~j, +J ls ', Is V~ gy P ~ +AVE (S. l6 ) with = ( -1) ~ut (I Izc) + -'~( Yd-Yc We will also now include the equivalent formula...

  12. Nondestructive evaluation of distributed damage in graphite/epoxy beams using modal parameters

    E-Print Network [OSTI]

    Kim, Young Ik


    . For this case, Talreja (13I has given the following equation: C?= C, ', +C, ', (54) where C, '. , = kz 2ks 0 (55) a. nd (2k, l g'+ 2k41g') (krgt t + k, 41g') ks111z C, ', = (kr31g + k&41g ) (2k, 1& + 2ksIg ) kgt tl'z (56) ks1tVg kgt'r1g (2krt1'g ' 2krgtg... and 66) for larrunate is changed to the off-axis notation (zz, yy snd zy)): E?= E 2D k, 2ks(2ks + 2k1DO) 0 3 ) 2klk2k13 + klk13D k3ks ksk13 ? krks (63) G, s = G" + 2D'k11 for the elastic constants in terms of the damage parameter D . It should...

  13. Music in the Aegean Bronze Age

    E-Print Network [OSTI]

    Younger, John G.


    ; s.E7.a8 5 r'ir cEtOl:5I HE EX EE€fif€UO g & Ffr F; tal..0) :>, ...1 (g v -i.v(hX 4.- >\\aAH L PV * oAO dJO\\ Sc\\ ^ k ..u) r'\\ i{ ^u V.X Hvd.l3 oaE 3 ln6z q'$ e!tE 3E vg:vL!ts (|i dE \\o a* E h' S; +: -r:+E ;E:I J. H .\\c.l$'J st s6 .E .X oqI E 9-94 P=u 3 -:th6 tr O. do--: Eegs€ir -E999.=b.,^'; 2 >,+ x -cizq: h iE q6bo'";itD E = F :'7 E io .= r= .= ;i Y ^-.oa4!.:!- ':-66*FE q! gsf i...

  14. Modeling the effects of spatial agronomic inputs on crop yield

    E-Print Network [OSTI]

    McCauley, James Darrell


    entry in the marginal probability matrix obtained by summing the rows of p(i, j). Ng pg(j) = Zp(i, j) Ng Ng pz+g(k) = i=))=)p(i, j'), k q [2, 3, . . . , 2Ng] )+g=a Ng Ng p, s(k) = g=gg=g p(i, i), k E [0, 1, . . . , jVg ? 1) h ? gl=& Ng Ng p*= 2... answered all of my e ? mail inquiries regarding the port and spent long hours on the phone during debugging, Sam Turner at the GOSSYM ? COMAX Information Unit in Starkville, Mississippi, was also very helpful during the early stages of this worln Rajesh...

  15. Properties of HfLaO MOS capacitor deposited on SOI with plasma enhanced atomic layer deposition

    SciTech Connect (OSTI)

    Wan, Wenyan; Cheng, Xinhong, E-mail:; Cao, Duo; Zheng, Li; Xu, Dawei; Wang, Zhongjian; Xia, Chao; Shen, Lingyan; Yu, Yuehui [State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Micro-system and Information Technology, Chinese Academy of Sciences, Changning Road 865, Shanghai 200050 (China); Shen, DaShen [Department of Electrical and Computer Engineering, University of Alabama in Huntsville, Huntsville, Alabama 35899 (United States)


    Amorphous HfLaO dielectric film was successfully deposited on a silicon-on-insulator (SOI) substrate by plasma enhanced atomic layer deposition with in situ plasma treatment. The HfLaO film retained its insulating characteristics and is thermally stable even after annealing at 800?°C. The film has a dielectric constant of 27.3 and leakage of only 0.03?mA/cm{sup 2} at a gate bias of |Vg ? V{sub fb}|?=?1?V. The capacitance equivalent oxide thickness is 0.7?nm. A new parallel electrode testing structure was applied to measure C–V and J–V characteristics for the SOI samples. This testing method for metal–oxide–semiconductor capacitors has potential uses for measuring other layered substrates.

  16. A test of the Duncan model of photosynthesis in plant communities

    E-Print Network [OSTI]

    Kenner, Melvin Everett


    0 nl O 0 O O CV CV O IH 0 O O O O Q e C 0 IIC I In 4J IC CI CI 0 ql Cl II 0 '0 0 CI CI e M Cl 0 Iz1 CI a '0 O 21 leaf. The steps in these calculations and the values calculated by the ratio method are shown in Table 3... O O W 4l 4l 4l l4 0 44 0 e ce ~Viwig Elm O 43 + X ~ v O r ~ ~ ~ ~ ' ~ ~ ~ ~ ' ~ ~ ~ -0 8 O O A cv O& O 4 ~ V 4 C O V C O O 4J C 41 W 0 0 4J Cl C W l4 4 Cl W W 0 d ql CO 41 ot ~ ~ e ~ O , ~Vg...

  17. Advanced Nanomaterials for High-Efficiency Solar Cells

    SciTech Connect (OSTI)

    Chen, Junhong [University of Wisconsin-Milwaukee] [University of Wisconsin-Milwaukee


    Energy supply has arguably become one of the most important problems facing humankind. The exponential demand for energy is evidenced by dwindling fossil fuel supplies and record-high oil and gas prices due to global population growth and economic development. This energy shortage has significant implications to the future of our society, in addition to the greenhouse gas emission burden due to consumption of fossil fuels. Solar energy seems to be the most viable choice to meet our clean energy demand given its large scale and clean/renewable nature. However, existing methods to convert sun light into electricity are not efficient enough to become a practical alternative to fossil fuels. This DOE project aims to develop advanced hybrid nanomaterials consisting of semiconductor nanoparticles (quantum dots or QDs) supported on graphene for cost-effective solar cells with improved conversion efficiency for harvesting abundant, renewable, clean solar energy to relieve our global energy challenge. Expected outcomes of the project include new methods for low-cost manufacturing of hybrid nanostructures, systematic understanding of their properties that can be tailored for desired applications, and novel photovoltaic cells. Through this project, we have successfully synthesized a number of novel nanomaterials, including vertically-oriented graphene (VG) sheets, three-dimensional (3D) carbon nanostructures comprising few-layer graphene (FLG) sheets inherently connected with CNTs through sp{sup 2} carbons, crumpled graphene (CG)-nanocrystal hybrids, CdSe nanoparticles (NPs), CdS NPs, nanohybrids of metal nitride decorated on nitrogen-doped graphene (NG), QD-carbon nanotube (CNT) and QD-VG-CNT structures, TiO{sub 2}-CdS NPs, and reduced graphene oxide (RGO)-SnO{sub 2} NPs. We further assembled CdSe NPs onto graphene sheets and investigated physical and electronic interactions between CdSe NPs and the graphene. Finally we have demonstrated various applications of these nanomaterials in solar cells (both as photoanodes and counter electrodes), gas sensors, and energy storage devices. This research is potentially transformative since the availability of affordable hybrid nanostructures and their fundamental properties will enable various innovative applications of the multifunctional hybrid nanostructures and thus will accelerate new discoveries and inventions in nanoscience and nanotechnology.

  18. Varying constants quantum cosmology

    E-Print Network [OSTI]

    Katarzyna Leszczynska; Adam Balcerzak; Mariusz P. Dabrowski


    We discuss minisuperspace models within the framework of varying physical constants theories including $\\Lambda$-term. In particular, we consider the varying speed of light (VSL) theory and varying gravitational constant theory (VG) using the specific ans\\"atze for the variability of constants: $c(a) = c_0 a^n$ and $G(a)=G_0 a^q$. We find that most of the varying $c$ and $G$ minisuperspace potentials are of the tunneling type which allows to use WKB approximation of quantum mechanics. Using this method we show that the probability of tunneling of the universe "from nothing" ($a=0)$ to a Friedmann geometry with the scale factor $a_t$ is large for growing $c$ models and is strongly suppressed for diminishing $c$ models. As for $G$ varying, the probability of tunneling is large for $G$ diminishing, while it is small for $G$ increasing. In general, both varying $c$ and $G$ change the probability of tunneling in comparison to the standard matter content (cosmological term, dust, radiation) universe models.

  19. Total dose induced latch in short channel NMOS/SOI transistors

    SciTech Connect (OSTI)

    Ferlet-Cavrois, V.; Quoizola, S.; Musseau, O.; Flament, O.; Leray, J.L. [CEA/DRIF, Bruyeres-le-Chatel (France)] [CEA/DRIF, Bruyeres-le-Chatel (France); Pelloie, J.L.; Raynaud, C.; Faynot, O. [CEA/DTA-LETI, Grenoble (France)] [CEA/DTA-LETI, Grenoble (France)


    A latch effect induced by total dose irradiation is observed in short channel SOI transistors. This effect appears on NMOS transistors with either a fully or a partially depleted structure. It is characterized by a hysteresis behavior of the Id-Vg characteristics at high drain bias for a given critical dose. Above this dose, the authors still observe a limited leakage current at low drain bias (0.1 V), but a high conduction current at high drain bias (2 V) as the transistor should be in the off-state. The critical dose above which the latch appears strongly depends on gate length, transistor structure (fully or partially depleted), buried oxide thickness and supply voltage. Two-dimensional (2D) numerical simulations indicate that the parasitic condition is due to the latch of the back gate transistor triggered by charge trapping in the buried oxide. To avoid the latch induced by the floating body effect, different techniques can be used: doping engineering, body contacts, etc. The study of the main parameters influencing the latch (gate length, supply voltage) shows that the scaling of technologies does not necessarily imply an increased latch sensitivity. Some technological parameters like the buried oxide hardness and thickness can be used to avoid latch, even at high cumulated dose, on highly integrated SOI technologies.


    SciTech Connect (OSTI)

    Fox, K; James Gillam, J; Tommy Edwards, T; David Peeler, D


    Four frits were developed for possible use in melter testing with V.G. Khlopin Radium Institute's Steklo Metallicheskie Konstruktsii (SMK) melter. The frits were selected using Measurement Acceptability Region (MAR) assessments of an array of frit formulations and two Sludge Batch 5 (SB5) flowsheets, one with the anticipated effect of the implementation of Al-dissolution and one without. Test glasses were fabricated in the laboratory to verify that the property and performance models used to select the frits were applicable to the frit/sludge systems of interest. Each of the four frits was tested with each of the two sludges at two different waste loadings, for a total of 16 test glasses. Each glass was both quenched and subjected to the canister centerline cooled (CCC) thermal profile. Samples of each glass were examined for crystallization by X-ray diffraction (XRD) and durability using the Product Consistency Test (PCT). The quenched version of each glass appeared amorphous by visual observations, although XRD results indicated a small amount of crystallization in four of the quenched glasses. Visual observations identified surface crystallization on the CCC versions of all 16 glasses. Three of the 35% waste loading (WL), CCC glasses were found to contain trevorite (a spinel) by XRD, and all of the 40% WL CCC glasses were found to contain trevorite. Nepheline was not observed in any of the test glasses, which is consistent with model predictions.

  1. Porous Alumina Silicate Matrix Gubka for Solidification of {sup 137}Cs Strip Product

    SciTech Connect (OSTI)

    Aloy, Albert; Strelnikov, Alexander; Essimantovskiy, Vyacheslav ['V.G. Khlopin Radium Institute', 2nd Murinskiy str., 28, Saint Petersburg, 194021 (Russian Federation)


    Separated liquid high-level radioactive waste (HLW) fractions, in particular, about 100 liters of a {sup 137}Cs strip product with activity up to {approx} 100 Ci/l (3.7 TBq/l) have been produced during the development and testing of partitioning technology and temporarily stored at V.G. Khlopin Radium Institute (KRI) (Saint-Petersburg, Russia). The bench-scale experimental unit designed for operation in the hot cell was developed for {sup 137}Cs strip product solidification using an alumina silicate porous inorganic material (PIM) called Gubka. Conditions of saturation, drying, and calcinations of the salts into Gubka pores were optimized, and the operations under a remote control regime were executed during tests using a simulated strip product doped with {sup 137}Cs. The volume reduction coefficients were equal by a factor of 3.2-3.9 and a {sup 137}Cs discharge into an off-gas system was not detected. {sup 137}Cs leach rates from Gubka blocks after calcination at 800 deg. C were 1.0-1.5.10{sup -3} g/m{sup 2}.per day. (authors)

  2. Top quark forward-backward asymmetry, flavor-changing neutral-current decays, and like-sign pair production as a joint probe of new physics

    SciTech Connect (OSTI)

    Cao Junjie [College of Physics and Information Engineering, Henan Normal University, Xinxiang 453007 (China); Wang Lin [College of Physics and Information Engineering, Henan Normal University, Xinxiang 453007 (China); Key Laboratory of Frontiers in Theoretical Physics, Institute of Theoretical Physics, Academia Sinica, Beijing 100190 (China); Wu Lei; Yang Jinmin [Key Laboratory of Frontiers in Theoretical Physics, Institute of Theoretical Physics, Academia Sinica, Beijing 100190 (China)


    The anomaly of the top quark forward-backward asymmetry A{sub FB}{sup t} observed at the Tevatron can be explained by the t-channel exchange of a neutral gauge boson (Z{sup '}) which has sizable flavor-changing coupling for top and up quarks. This gauge boson can also induce the top quark flavor-changing neutral-current (FCNC) decays and the like-sign top pair production at the LHC. In this work, we focus on two models which predict such a Z', namely, the left-right model and the U(1){sub X} model, to investigate the correlated effects on A{sub FB}{sup t}, the FCNC decays t{yields}uV (V=g, Z, {gamma}) and the like-sign top pair production at the LHC. We also pay special attention to the most recently measured A{sub FB}{sup t} in the large top pair invariant mass region. We find that under the current experimental constraints both models can alleviate the deviation of A{sub FB}{sup t} and, meanwhile, enhance the like-sign top pair production to the detectable level of the LHC. We also find that the two models give different predictions for the observables and their correlations, and thus they may even be distinguished by jointly studying these top quark observables.

  3. Studies of the combustion of coal/refuse derived fuels using thermogravimetric-Fourier transform infrared-mass spectrometry

    SciTech Connect (OSTI)

    Lu, H.; Li, J.; Lloyd, W.G. [and others


    The materials used in this project included two bituminous coals, a medium molecular weight PVC resin, cellulose, and shredded newspaper. Analytical data for the samples are given. A TA Instruments Model 951 Thermogravimetric Analyzer (TG) interfaced to a Perkin Elmer 1650 Fourier Transform Infrared Spectrometer (FTIR) was used in this study. The horizontal quartz furnace of the TG was connected to the 10 cm gas cell of the FTIR using an insulated teflon tube heated to a temperature of 150{degrees}C. The TG was also interfaced to a VG Thermolab Mass Spectrometer (MS) using a fused silica capillary sampling tube heated to approximately 170{degrees}C. A teflon splitter divides the gases from the TG into two parts, one to the FTIR ({approximately}95%), and the other to the MS ({approximately}5%). A schematic of the TG-FTIR-MS system, is presented. In the TG experiments, all samples ({approximately}300 mg each) were heated in air (50 ML/min) at a rate of 10{degrees}C/min to 700{degrees}C. The spectra and profiles of gaseous species evolving from the TG system were recorded and analyzed by the TGA-FTIR-MS analytical system. The results of the experiments are given.

  4. Probing the Geometry and Interconnectivity of Pores in Organic Aerogels Using Hyperpolarized 129Xe NMR Spectroscopy

    SciTech Connect (OSTI)

    Moudrakovski, Igor L.; Wang, Li Q.; Baumann, T.; Satcher, J. H.; Exarhos, Gregory J.; Ratcliffe, C. I.; Ripmeester, J. A.


    Aerogels represent a class of novel open-pore materials with high surface area and nanometer pore sizes. They exhibit extremely low mass densities, low thermal conductivity, good acoustic insulation, and low dielectric constants. These materials have potential applications in catalysis, advanced separation techniques, energy storage, environmental remediation, and as insulating materials. Organic aerogels are stiffer and stronger than silica aerogels and are better insulators with higher thermal resistance. Resorcinol-Formaldehyde (RF) aerogels are typically prepared through the base-catalyzed sol-gel polymerization of resorcinol with formaldehyde in aqueous solution to produce gels, which are then dried in supercritical CO2.1,2 The [resorcinol]/ [catalyst] (R/C) ratio of the starting sol-gel solution has been determined to be the dominant factor that affects the properties of RF aerogels. Since the unique microstructures of aerogels are responsible for their unusual properties, characterizing the detailed porous structures and correlating them with the processing parameters are vital to establish rational design principles for novel organic aerogels with tailored properties. In this communication we report the first use of hyperpolarized (HP) 129Xe NMR to probe the geometry and interconnectivity of pores in RF aerogels and to correlate these with synthetic conditions. Our work demonstrates that HP 129Xe NMR is so far the only method for accurately measuring the free volume-to-surface-area (Vg/S) ratios for soft mesoporous materials without using any geometric models.

  5. A study of the three-body stripping process and calculation of the angular distribution of neutrons from the Li? (He³, n,p)Be? reaction

    E-Print Network [OSTI]

    Purrington, Robert Daniel


    J fV O 4N Go J O Co H t-J CA I Co CJ :V G& Co IV O O VD Q fo O iV V' IV W . 3 C O IV o Go O t 1 fV Gx O O (V Co CJ O iV O O GD 3 O Gi H O 0 ljl VG O 0 O 0 t-3 O M L M U co tD ID Co 'G... fD Co oo t 3 H O c' H II O O -I I ~ I:I I 1 f" IJ O O 0 O 22 Iu CO 6 0 Ol IV CO W 6 w r Q 0 V Iv Vl GX ru 0 Vl IV 0 M W Co Go W v fv Iv Vu w V. ' fv fv I Co Lil 0 0 Vl W 0 fv W L W W Rl 0 W O cu fv Co 0 fu Co 0...


    SciTech Connect (OSTI)

    Kelley, Dennis; Brunkow, Ward; Pokhitonov, Yuri; Starchenko, Vadim


    The Cold War era created a massive build-up of nuclear weapon stockpiles in the former Soviet Union and the United States. The primary objective during this period was the development of nuclear technologies for weapons, space and power with lack of attention to the impact of radioactive and hazardous waste products on the environment. Effective technologies for radioactive and hazardous waste treatment and disposal were not well investigated or promoted during the arms build-up; and consequently, environmental contamination has become a major problem. These problems in Russia and the United States are well documented. Significant amounts of liquid radwaste have existed since the 1950's. The current government of the Russian Federation is addressing the issues of land remediation and permanent storage of radwaste resulting from internal and external pressures for safe cleanup and storage. The Russian government seeks new technologies from internal sources and from the West that will provide high performance, long term stability, safe for transport and for long-term storage of liquid radwaste at a reasonable economic cost. With the great diversity of liquid chemical compositions and activity levels, it is important to note that these waste products cannot be processed with commonly used methods. Different techniques and materials can be used for this problem resolution including the use of polymer materials that are capable of forming chemically stable, solidified waste products. In 2001, the V.G. Khlopin Radium Institute (St. Petersburg, Russia) and Pacific World Trade (Indianapolis, Indiana) began an extensive research and test program to determine the effectiveness and performance of high technology polymers for the immobilization and solidification of complex liquid radwaste types generated by the Ministry of Atomic Energy (Minatom), Russia, organization. The high tech polymers used in the tests were provided by Nochar, Inc. (Indianapolis, Indiana).

  7. A disease of swine caused by a chromobacterium species

    E-Print Network [OSTI]

    Sippel, William Lawrence


    ?Pa(y.?h.b.PO< TABLE OF CONTENTS x? pPOTa?mrOpaP O9, 1gs,'s, w'us,1 VS r9Q6M6V'w4, Q?uM ?g6?'w,uM 9's 864 V,,8 1,swQgV,1 JQ,?g6us?S g8 sAg8,? p4 A's w68sg1,Q,1 65 su55gwg'84 gM? J6Q4'8w, 56Q ' 1gss,Q4'4g68 JQ6V?,M 56Q 49, 56??6Ag8C Q,'s68s7 ?'? p4 'JJ,'Qs 's '8...'8gsM JQ61uwg8C V?u,IV?'w? JgCM,84 A's gs6?'4,1 5Q6M 49, sJ?,,8? P6 '8gM'? g86wu?'4g68 6Q Vg6w9,Mgw'? s4u1g,s 'Q, Q,? w6Q1,1 56Q 49gs V'w4,QguM Vu4 g4s V,9'?g6Q '81 'JJ,'Q'8w, g8 49, s46w? wu?4uQ, w6??,w4g68 ?,81 suJJ6Q4 46 49, suJJ6sg4g68 49...


    SciTech Connect (OSTI)

    Fox, K; Tommy Edwards, T; David Peeler, D


    High-level radioactive wastes are stored as liquids in underground storage tanks at the Department of Energy's (DOE) Savannah River Site (SRS) and Hanford Reservation. These wastes are to be prepared for permanent disposition in a geologic repository by vitrification with glass forming additives (e.g., frit), creating a waste form with long-term durability. Wastes at SRS are being vitrified in the Defense Waste Processing Facility (DWPF). Vitrification of the wastes stored at Hanford is planned for the Waste Treatment and Immobilization Plant (WTP) when completed. Some of the wastes at SRS, and particularly those at Hanford, contain high concentrations of aluminum, chromium and sulfate. These elements make it more difficult to produce a waste glass with a high waste loading (WL) without crystallization occurring in the glass (either within the melter or upon cooling of the glass), potentially exceeding the solubility limit of critical components, having negative impacts on durability, and/or resulting in the formation of a sulfate salt layer on the molten glass surface. Although the overall scope of the task is focused on all three critical, chemical components, the current work will primarily address the potential for crystallization (e.g., nepheline and/or spinel) in high level waste (HLW) glasses. Recent work at the Savannah River National Laboratory (SRNL) and by other groups has shown that nepheline (NaAlSiO{sub 4}), which is likely to crystallize in high-alumina glasses, has a detrimental effect on the durability of the glass. The objective of this task is to develop glass formulations for specific SRS and Hanford waste streams to avoid nepheline formation while meeting waste loading and waste throughput expectations, as well as satisfying critical process and product performance related constraints. Secondary objectives of this task are to assess the sulfate solubility limit for the DWPF composition and spinel settling for the WTP composition. SRNL has partnered with Pacific Northwest National Laboratory (PNNL) and the V.G. Khlopin Radium Institute (KRI) to complete this task.


    SciTech Connect (OSTI)

    Fox, K; David Peeler, D; Tommy Edwards, T; David Best, D; Irene Reamer, I; Phyllis Workman, P; James Marra, J


    The objective of this task was to develop glass formulations for (Department of Energy) DOE waste streams with high aluminum concentrations to avoid nepheline formation while maintaining or meeting waste loading and/or waste throughput expectations as well as satisfying critical process and product performance related constraints. Liquidus temperatures and crystallization behavior were carefully characterized to support model development for higher waste loading glasses. The experimental work, characterization, and data interpretation necessary to meet these objectives were performed among three partnering laboratories: the V.G. Khlopin Radium Institute (KRI), Pacific Northwest National Laboratory (PNNL) and Savannah River National Laboratory (SRNL). Projected glass compositional regions that bound anticipated Defense Waste Processing Facility (DWPF) and Hanford high level waste (HLW) glass regions of interest were developed and used to generate glass compositions of interest for meeting the objectives of this study. A thorough statistical analysis was employed to allow for a wide range of waste glass compositions to be examined while minimizing the number of glasses that had to be fabricated and characterized in the laboratory. The glass compositions were divided into two sets, with 45 in the test matrix investigated by the U.S. laboratories and 30 in the test matrix investigated by KRI. Fabrication and characterization of the US and KRI-series glasses were generally handled separately. This report focuses mainly on the US-series glasses. Glasses were fabricated and characterized by SRNL and PNNL. Crystalline phases were identified by X-ray diffraction (XRD) in the quenched and canister centerline cooled (CCC) glasses and were generally iron oxides and spinels, which are not expected to impact durability of the glass. Nepheline was detected in five of the glasses after the CCC heat treatment. Chemical composition measurements for each of the glasses were conducted following an analytical plan. A review of the individual oxides for each glass revealed that there were no errors in batching significant enough to impact the outcome of the study. A comparison of the measured compositions of the replicates indicated an acceptable degree of repeatability as the percent differences for most of the oxides were less than 5% and percent differences for all of the oxides were less than 10 wt%. Chemical durability was measured using the Product Consistency Test (PCT). All but two of the study glasses had normalized leachate for boron (NL [B]) values that were well below that of the Environmental Assessment (EA) reference glass. The two highest NL [B] values were for the CCC versions of glasses US-18 and US-27 (10.498 g/L and 15.962 g/L, respectively). Nepheline crystallization was identified by qualitative XRD in five of the US-series glasses. Each of these five glasses (US-18, US-26, US-27, US-37 and US-43) showed a significant increase in NL [B] values after the CCC heat treatment. This reduction in durability can be attributed to the formation of nepheline during the slow cooling cycle and the removal of glass formers from the residual glass network. The liquidus temperature (T{sub L}) of each glass in the study was determined by both optical microscopy and XRD methods. The correlation coefficient of the measured XRD TL data versus the measured optical TL data was very good (R{sup 2} = 0.9469). Aside from a few outliers, the two datasets aligned very well across the entire temperature range (829 C to 1312 C for optical data and 813 C to 1310 C for XRD crystal fraction data). The data also correlated well with the predictions of a PNNL T{sub L} model. The correlation between the measured and calculated data had a higher degree of merit for the XRD crystal fraction data than for the optical data (higher R{sup 2} value of 0.9089 versus 0.8970 for the optical data). The SEM-EDS analysis of select samples revealed the presence of undissolved RuO{sub 2} in all glasses due to the low solubility of RuO{sub 2} in borosilicate glass. These