Sample records for grooved spacer rebuilt

  1. Application Availability of Insulation Heat of the Terrace in a Rebuilt Refrigerator

    E-Print Network [OSTI]

    Qu, C.; Sun, Y.; Chen, Z.

    2006-01-01T23:59:59.000Z

    Dealing with the terrace in rebuilt refrigerators influences the performance characteristics, performance safety and construction costs. This paper researches the heat transfer of the terrace of the rebuilt refrigerator by the numerical method...

  2. OCH Spacer Design

    SciTech Connect (OSTI)

    Kurita, C.H.; /Fermilab

    1987-02-04T23:59:59.000Z

    The purpose of the OCH module spacers is to keep the given dimension of .224-inch between the 1.83-inch absorber plates. This distance is determined by two liquid argon gaps of .09-inch each and a readout board of .044-inch. The spacer should be made out of a material that would give a minimum thermal contraction movement. Also the dimension of the spacer will be determined dependent upon the load applied to the spacers and the strength of the material chosen. Considering both thermal contraction and yield strength, it is found that Invar-36 would be a suitable material from which to make the spacers for the OCh module, provided that SS304 washers are used in conjunction with the spacers. The spacers would be positioned about 1-inch from the corners of each of the copper plates, and would have a diameter of about 0.85453399-inch. The thickness of the Invar spacer would be 0.15394250-inch and that of the SS304 would be 0.07005750-inch. This combination of materials used for spacing purposes should result in zero displacement due to thermal contraction and no buckling due to overloading. The actual design of the spacer can be found in DWG.

  3. Spacer for deep wells

    SciTech Connect (OSTI)

    Klein, G. D.

    1984-10-23T23:59:59.000Z

    A spacer for use in a deep well that is to have a submersible pump situated downhole and with a string of tubing attached to the pump for delivering the pumped fluid. The pump is electrically driven, and power is supplied via an armored cable which parallels the string of tubing. Spacers are clamped to the cable and have the tubing running through an eccentrically located passage in each spacer. The outside dimensions of a spacer fit freely inside any casing in the well.

  4. Spacer Damper Replacement Program

    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 windMarchSpace-AgeSpacer Damper

  5. Generator stator core vent duct spacer posts

    DOE Patents [OSTI]

    Griffith, John Wesley (Schenectady, NY); Tong, Wei (Clifton Park, NY)

    2003-06-24T23:59:59.000Z

    Generator stator cores are constructed by stacking many layers of magnetic laminations. Ventilation ducts may be inserted between these layers by inserting spacers into the core stack. The ventilation ducts allow for the passage of cooling gas through the core during operation. The spacers or spacer posts are positioned between groups of the magnetic laminations to define the ventilation ducts. The spacer posts are secured with longitudinal axes thereof substantially parallel to the core axis. With this structure, core tightness can be assured while maximizing ventilation duct cross section for gas flow and minimizing magnetic loss in the spacers.

  6. Spacer grid assembly and locking mechanism

    DOE Patents [OSTI]

    Snyder, Jr., Harold J. (Rancho Santa Fe, CA); Veca, Anthony R. (San Diego, CA); Donck, Harry A. (San Diego, CA)

    1982-01-01T23:59:59.000Z

    A spacer grid assembly is disclosed for retaining a plurality of fuel rods in substantially parallel spaced relation, the spacer grids being formed with rhombic openings defining contact means for engaging from one to four fuel rods arranged in each opening, the spacer grids being of symmetric configuration with their rhombic openings being asymmetrically offset to permit inversion and relative rotation of the similar spacer grids for improved support of the fuel rods. An improved locking mechanism includes tie bars having chordal surfaces to facilitate their installation in slotted circular openings of the spacer grids, the tie rods being rotatable into locking engagement with the slotted openings.

  7. Method of manufacturing nuclear fuel bundle spacers

    SciTech Connect (OSTI)

    White, D.W.; Muncy, D.G.; Schoenig, F.C. Jr.

    1989-09-26T23:59:59.000Z

    This patent describes a method of manufacturing nuclear fuel bundle spacers on an automated production line basis. It comprises: cutting elongated tubing stock into shorter tubular ferrules; checking the length of each ferrule and rejecting those ferrules of unacceptable lengths; cutting predetermined features in the sidewall of each ferrule; forming the sidewall of each ferrule to impart predetermined surface formations thereto; checking a critical dimension of each sidewall surface formation of each ferrule and rejecting those of unacceptable dimensions; assembling successive pairs of ferrules into subassemblies; assembling successive subassemblies into a spacer assembly fixture; assembling a peripheral band in the spacer assembly fixture; conjoining the ferrules to each other and to the peripheral band to create a structurally rigid, finished spacer; and providing a separate controller for automatically controlling and monitoring the performances of these steps.

  8. Effect of circumferential groove casing treatment parameters on axial compressor flow range

    E-Print Network [OSTI]

    Hanley, Brian K. (Brian Kyle)

    2010-01-01T23:59:59.000Z

    The impact on compressor flow range of circumferential casing grooves of varying groove depth, groove axial location, and groove axial extent is assessed against that of a smooth casing wall using computational experiments. ...

  9. Minor Groove Deformability of DNA: A Molecular Dynamics Free...

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

    experimental DNA structures in complex with minor groove-binding proteins. The calculated free energy of minor groove deformation was 4–6 kcal mol-1 in the case of a central...

  10. Insulation spacer eliminates electric shorts between lines

    SciTech Connect (OSTI)

    Colaizzi, J.F.; Rockafellow, G.B.

    1983-03-01T23:59:59.000Z

    The design criteria incorporated into the pipeline insulating spacer were: spacer material selected must have a very large compressive and tensile strength in order to withstand the weight and stress resulting on the pipelines; provide the necessary abrasive resistance, dielectric strength, and will not decay underground; must not soften with heat when used around or near stream lines or will not cold flow under pressure; minimum length and circumference to reduce ''Shielding Effects'' from any cathodic protection system; and provide a material that incorporates a maximum strength at a minimum thickness. Explains that electric shorts are caused by 2 or more metallic structures in contact with each other. Notes that the insulating spacer's use has been expanded to provide electrical and physical insulation between carrier pipe and casing, supports for piping in compressing stations, and for pipelines that are suspended on bridges.

  11. Separator-spacer for electrochemical systems

    DOE Patents [OSTI]

    Grimes, Patrick G. (Westfield, NJ); Einstein, Harry (Springfield, NJ); Newby, Kenneth R. (Berkeley Heights, NJ); Bellows, Richard J. (Westfield, NJ)

    1983-08-02T23:59:59.000Z

    An electrochemical cell construction features a novel co-extruded plastic electrode in an interleaved construction with a novel integral separator-spacer. Also featured is a leak and impact resistant construction for preventing the spill of corrosive materials in the event of rupture.

  12. Tube support grid and spacer therefor

    DOE Patents [OSTI]

    Ringsmuth, Richard J. (Solano Beach, CA); Kaufman, Jay S. (Del Mar, CA)

    1986-01-01T23:59:59.000Z

    A tube support grid and spacers therefor provide radially inward preloading of heat exchange tubes to minimize stress upon base welds due to differential thermal expansion. The grid comprises a concentric series of rings and spacers with opposing concave sides for conforming to the tubes and V-shaped ends to provide resilient flexibility. The flexibility aids in assembly and in transmitting seismic vibrations from the tubes to a shroud. The tube support grid may be assembled in place to achieve the desired inwardly radial preloading of the heat exchange tubes. Tab and slot assembly further minimizes stresses in the system. The radii of the grid rings may be preselected to effect the desired radially inward preloading.

  13. Microsoft Word - CX-Hanford-Wautoma_Spacers_WEB.doc

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

    DATE: April 23, 2010 REPLY TO ATTN OF: KEP-4 SUBJECT: Environmental Clearance Memorandum Corinn Castro Program Management Engineer - TELM-TPP-3 Proposed Action: Spacer replacement...

  14. Fabrication of advanced design (grooved) cermet anodes

    SciTech Connect (OSTI)

    Windisch, C.F. Jr. (Pacific Northwest Lab., Richland, WA (United States)); Huettig, F.R. (Ceramic Magnetics, Inc., Fairfield, NJ (United States))

    1993-05-01T23:59:59.000Z

    Attempts were made to fabricate full-size anodes with advanced, or grooved, design using isostatic pressing, slip casting injection molding. Of the three approaches, isostatic pressing produced an anode with dimensions nearest to the target specifications, without serious macroscopic flaws. This approach is considered the most promising for making advanced anodes for aluminum smelting. However, significant work still remains to optimize the physical properties and microstructure of the anode, both of which were significantly different from that of previous anodes. Injection molding and slip casting yielded anode materials with serious deficiencies, including cracks and holes. Injection molding gave cermet material with the best intrinsic microstructure, i.e., the microstructure of the material between macroscopic flaws was very similar to that of anodes previously made at PNL. Reason for the similarity may have to do with amount of residual binder in the material prior to sintering.

  15. Effective slippage on superhydrophobic trapezoidal grooves

    E-Print Network [OSTI]

    Zhou, Jiajia; Schmid, Friederike; Vinogradova, Olga I

    2013-01-01T23:59:59.000Z

    We study the effective slippage on superhydrophobic grooves with trapezoidal cross-sections of various geometries (including the limiting cases of triangles and rectangular stripes), by using two complementary approaches. First, dissipative particle dynamics (DPD) simulations of a flow past such surfaces have been performed to validate an expression [E.S.Asmolov and O.I.Vinogradova, J. Fluid Mech. \\textbf{706}, 108 (2012)] that relates the eigenvalues of the effective slip-length tensor for one-dimensional textures. Second, we propose theoretical estimates for the effective slip length and calculate it numerically by solving the Stokes equation based on a collocation method. The comparison between the two approaches shows that they are in excellent agreement. Our results demonstrate that the effective slippage depends strongly on the area-averaged slip, the amplitude of the roughness, and on the fraction of solid in contact with the liquid. To interpret these results, we analyze flow singularities near slippi...

  16. Laser window with annular grooves for thermal isolation

    DOE Patents [OSTI]

    Warner, B.E.; Horton, J.A.; Alger, T.W.

    1983-07-13T23:59:59.000Z

    A laser window or other optical element which is thermally loaded, heats up and causes optical distortions because of temperature gradients between the center and the edge. A number of annular grooves, one to three or more, are formed in the element between a central portion and edge portion, producing a web portion which concentrates the thermal gradient and thermally isolates the central portion from the edge portion, producing a uniform temperature profile across the central portion and therefore reduce the optical distortions. The grooves are narrow and closely spaced with respect to the thickness of the element, and successive grooves are formed from alternate sides of the element.

  17. Computational analysis of spiral groove thrust bearings and face seals

    E-Print Network [OSTI]

    Zirkelback, Nicole Lisa

    1997-01-01T23:59:59.000Z

    Analyses for incompressible and compressible spiral groove thrust bearings (SGTBS) and face seals (SGFSS) are presented. A successive approximation linearizes the partial differential equation of pressure that arises in the compressible fluid...

  18. advanced design grooved: Topics by E-print Network

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

    LINEAR LIGHT FOR GROOVE MEASUREMENT OF A SPECTACLE FRAME CiteSeer Summary: Nowadays, eyeglasses are not only a vision aid, they also are fashion and design articles for the...

  19. A Microfabricated Spiral-Groove Turbopump Supported on Microball Bearings

    E-Print Network [OSTI]

    Waits, Christopher Mike

    The development of a microfabricated turbopump that is capable of delivering liquid fuel with the flow rates and pressures required for portable power generation is reported. The device is composed of a spiral-groove viscous ...

  20. E-Cloud Build-up in Grooved Chambers

    E-Print Network [OSTI]

    Venturini, Marco

    2007-01-01T23:59:59.000Z

    and F. Zimmermann, ”LC e-Cloud Activities at CERN”, talkal. , Simulations of the Electron Cloud for Vari- ous Con?E-CLOUD BUILD-UP IN GROOVED CHAMBERS ? M. Venturini † LBNL,

  1. Seismic Capacity of Threaded, Brazed, and Grooved Pipe Joints

    Office of Environmental Management (EM)

    SEISMIC CAPACITY OF THREADED, BRAZED AND GROOVED PIPE JOINTS Brent Gutierrez, PhD, PE George Antaki, PE, F.ASME DOE NPH Conference October 25-26, 2011 Motivation * Understand the...

  2. LPCVD SILICON NITRIDE-ON-SILICON SPACER TECHNOLOGY H. W. van Zeijl, L.K. Nanver

    E-Print Network [OSTI]

    Technische Universiteit Delft

    of obtaining self-aligned sub- lithographic dimensions. In many processes were spacers are applied to separate-etching affects the dimensions of the spacer which could lead to a lack of control over the spacer-related deviceLPCVD SILICON NITRIDE-ON-SILICON SPACER TECHNOLOGY H. W. van Zeijl, L.K. Nanver DIMES Delft

  3. Nuclear reactor spacer grid and ductless core component

    DOE Patents [OSTI]

    Christiansen, David W. (Kennewick, WA); Karnesky, Richard A. (Richland, WA)

    1989-01-01T23:59:59.000Z

    The invention relates to a nuclear reactor spacer grid member for use in a liquid cooled nuclear reactor and to a ductless core component employing a plurality of these spacer grid members. The spacer grid member is of the egg-shell type and is constructed so that the walls of the cell members of the grid member are formed of a single thickness of metal to avoid tolerance problems. Within each cell member is a hydraulic spring which laterally constrains the nuclear material bearing rod which passes through each cell member against a hardstop in response to coolant flow through the cell member. This hydraulic spring is also suitable for use in a water cooled nuclear reactor. A core component constructed of, among other components, a plurality of these spacer grid members, avoids the use of a full length duct by providing spacer sleeves about the sodium tubes passing through the spacer grid members at locations between the grid members, thereby maintaining a predetermined space between adjacent grid members.

  4. Optical properties of grooved silicon microstructures: Theory and experiment

    SciTech Connect (OSTI)

    Dyakov, S. A., E-mail: dyakovs@tcd.ie [Moscow State University (Russian Federation); Astrova, E. V. [Russian Academy of Sciences, Ioffe Physicotechnical Institute (Russian Federation); Perova, T. S. [Trinity College Dublin (Ireland); Tikhodeev, S. G.; Gippius, N. A. [Russian Academy of Sciences, Prokhorov General Physics Institute (Russian Federation); Timoshenko, V. Yu. [Moscow State University (Russian Federation)

    2011-07-15T23:59:59.000Z

    The reflection spectra of grooved silicon structures consisting of alternating silicon walls and grooves (air channels) with a period of a = 4-6 {mu}m are studied experimentally and theoretically in the mid-IR spectral range (2-25 {mu}m) upon irradiation of samples by normally incident light polarized along and perpendicular to silicon layers. The calculation is performed by the scattering matrix method taking into account Rayleigh scattering losses in a grooved layer by adding imaginary parts to the refractive indices of silicon and air in grooved regions. The experimental and calculated reflection spectra are in good agreement in the entire spectral range studied. The analysis of experimental and calculated spectra gave close values of the effective refractive indices and birefringence of the studied structures in the long-wavelength spectral region. The values calculated in the effective medium model in the long-wavelength approximation ({lambda} Much-Greater-Than a) gave considerably understated values. The obtained results confirm the efficiency of the scattering matrix method for describing the optical properties of silicon microstructures.

  5. Design and Fabrication of End Spacers for a 13T Nb3Sn Dipole Magnet

    E-Print Network [OSTI]

    Caspi, S.

    2011-01-01T23:59:59.000Z

    coils and spacers reach acceptable dimensions. Magne t D20into all axial dimensions of Ul e wax spacers leaving bOlhspacers against the te mplates, minor cOITections were made to Ule theoretical cahle dimensions

  6. Base-contact proximity effects in bipolar transistors with nitride-spacer technology

    E-Print Network [OSTI]

    Technische Universiteit Delft

    -lithographic dimensions. For example, in the double polysilicon bipolar transistor, spacers are used to separate the baseBase-contact proximity effects in bipolar transistors with nitride-spacer technology Henk van Zeijl-BJT's with spacer separated Al/Si emitter and base contacts are fabricated and characterized. Due to the proximity

  7. Improving electricity production in tubular microbial fuel cells through optimizing the anolyte flow with spiral spacers

    E-Print Network [OSTI]

    Improving electricity production in tubular microbial fuel cells through optimizing the anolyte h l i g h t s " The spiral spacers improve electricity production in tubular microbial fuel cells fuel cells Spiral spacers Energy Wastewater treatment a b s t r a c t The use of spiral spacers

  8. Narrow groove welding gas diffuser assembly and welding torch

    DOE Patents [OSTI]

    Rooney, Stephen J. (East Berne, NY)

    2001-01-01T23:59:59.000Z

    A diffuser assembly is provided for narrow groove welding using an automatic gas tungsten arc welding torch. The diffuser assembly includes a manifold adapted for adjustable mounting on the welding torch which is received in a central opening in the manifold. Laterally extending manifold sections communicate with a shield gas inlet such that shield gas supplied to the inlet passes to gas passages of the manifold sections. First and second tapered diffusers are respectively connected to the manifold sections in fluid communication with the gas passages thereof. The diffusers extend downwardly along the torch electrode on opposite sides thereof so as to release shield gas along the length of the electrode and at the distal tip of the electrode. The diffusers are of a transverse width which is on the order of the thickness of the electrode so that the diffusers can, in use, be inserted into a narrow welding groove before and after the electrode in the direction of the weld operation.

  9. Design of a Spacer Grid Using Axiomatic Design

    SciTech Connect (OSTI)

    Song, K.N.; Yoon, K.H. [Korea Atomic Energy Research Institute, 150, Dukjin-Dong, Yusong-Gu, Taejon 305-353 (Korea, Republic of); Kang, B.S.; Park, G.J. [Hanyang University, 249-1, Kyomoon-dong, Kuri-si, Kyounggi-do 471-701 (Korea, Republic of); Choi, S.K. [Korea Rolling Stock Corporation, Kyunggi-Do, 437-040 (Korea, Republic of)

    2002-07-01T23:59:59.000Z

    Recently, much attention has been focused on the design of the fuel assemblies in the Pressurized Light Water Reactor (PLWR). The spacer grid is one of the main structural components in a fuel assembly. It supports fuel rods, guides cooling water, and maintains geometry from the external impact loads. In this research, a new shape of the spacer grid is designed by the axiomatic approach. The Independence Axiom is utilized for the design. For the conceptual design, functional requirements (FRs) are defined and corresponding design parameters (DPs) are found to satisfy FRs in sequence. Overall configuration and shapes are determined in this process. Detailed design is carried out based on the result of the axiomatic design. For the detailed design, the system performances are evaluated by using linear and nonlinear finite element analysis. The dimensions are determined by optimization. Some commercial codes are utilized for the analysis and design. (authors)

  10. Spacer grid for reducing bowing in a nuclear fuel assembly

    SciTech Connect (OSTI)

    Wohlsen, W.D.

    1982-04-20T23:59:59.000Z

    A bi-metallic spacer grid having a zircaloy perimeter strip consisting of oppositely facing, thin walled metal plates for closely surrounding the array of fuel rods. A rigid, stainless steel cross member extends between internal surfaces of the oppositely facing perimeter plates. In the preferred embodiment, the perimeter plates have cantilevered portions extending above and below the main body of the perimeter strip. The cross members interact with the enlarged portion by urging them outward relative to the perimeter strip as the fuel assembly heats up during operation. The outwardly projecting interface surfaces of each assembly mechanically interact with the interface surfaces of adjacent assemblies providing a mechanical restraint which limits bowing of the assembly. The effectiveness of the spacer grids in limiting bowing is therefore not dependent upon controlling the mechanisms responsible for causing bow. When the reactor is in a cold condition such as during refueling , the exterior dimensions of the spacer grids are the same as those of the other zircaloy grids, which assures adequate clearance for insertion and withdrawal of individual fuel assemblies.

  11. Microsoft Word - CX-DworshakPH-Dworshak1spacers_WEB.doc

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

    5, 2010 REPLY TO ATTN OF: KEP-4 SUBJECT: Environmental Clearance Memorandum Corinn Castro Project Manager - TELM-TPP-3 Proposed Action: Replace spacer dampers along the Dworshak...

  12. Channel and wedge plasmon modes of metallic V-grooves with finite metal thickness

    E-Print Network [OSTI]

    Floreano, Dario

    Channel and wedge plasmon modes of metallic V-grooves with finite metal thickness José Dintinger thickness on the propagation characteristics of the channel plasmon polariton (CPP) and wedge plasmon is found to evolve into short range plasmon modes propagating along the groove walls, in contrast

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

    E-Print Network [OSTI]

    Seshagiri, Sanjeev

    2012-07-16T23:59:59.000Z

    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...

  14. Experimental investigation of the condensation phenomenon in micro-grooved plates

    E-Print Network [OSTI]

    Barron-Jimenez, Rodolfo

    2001-01-01T23:59:59.000Z

    pressure induced by the difference in curvature of the meniscus formed in the groove. Triangular micro-grooves of different apex angles (45° and 60°), and hydraulic diameters (0.14 mm, 0.20 mm, 0.21 mm, 0.32 mm, and 0.33 mm) were machined on a copper plate...

  15. Heat transfer near spacer grids in rod bundles

    SciTech Connect (OSTI)

    Yoder, G.L.

    1985-01-01T23:59:59.000Z

    Heat transfer data from several sources have been assembled which show the effect of spacer grids on local heat transfer within a rod bundle. Both single phase (air and steam) data and two phase (steam/water) data show heat transfer augmentation in the grid region. Heat transfer improvement immediately beyond the grid ranges from a few percent to over fifty percent in these experiments, depending on flow conditions. The data are examined using several nondimensional parameters which relate the above effects to known quantities. The relative effect of the grid on local heat transfer is altered by both the Reynolds number and blockage ratio. Twenty to thirty hydraulic diameters are required before the local effect of the grid dissipates. Locally, both the single phase and two phase data show the same trends. Comparison of the single and two phase data also shown some differences. Some film boiling data indicate that an altered heat transfer regime may exist near the grid. High rod heat transfer coefficients at the grid locations indicate either a rewet of the rods or at least a change from film boiling to transition boiling near the spacer. The comparison also indicates that the film boiling data is affected on a global as well as local basis. This is due to the effect of the grid on the liquid distribution.

  16. Packaging design criteria modified fuel spacer burial box. Revision 1

    SciTech Connect (OSTI)

    Stevens, P.F.

    1994-09-13T23:59:59.000Z

    Various Hanford facilities must transfer large radioactively contaminated items to burial/storage. Presently, there are eighteen Fuel Spacer Burial Boxes (FSBBs) available on the Hanford Site for transport of such items. Previously, the FSBBS were transported from a rail car to the burial trench via a drag-off operation. To allow for the lifting of the boxes into the burial trench, it will be necessary to improve the packagings lifting attachments and provide structural reinforcement. Additional safety improvements to the packaging system will be provided by the addition of a positive closure system and package ventilation. FSBBs that are modified in such a manner are referred to as Modified Fuel Spacer Burial Boxes (MFSBs). The criteria provided by this PDC will be used to demonstrate that the transfer of the MFSB will provide an equivalent degree of safety as would be provided by a package meeting offsite transportation requirements. This fulfills the onsite transportation safety requirements implemented in WHC-CM-2-14, Hazardous Material Packaging and Shipping. A Safety Analysis Report for Packaging (SARP) will be prepared to evaluate the safety of the transfer operation. Approval of the SARP is required to authorize transfer. Criteria are also established to ensure burial requirements are met.

  17. The influence of a central groove on static and dynamic characteristics of an annular liquid seal with laminar flow

    E-Print Network [OSTI]

    Graviss, Matthew Sheridan

    2005-08-29T23:59:59.000Z

    This thesis provides experimental static and dynamic results for four pairs of seals, including a pair of smooth seals and three pairs of centrally grooved seals. The grooved seals have groove depth to clearance ratios (Dg/C) of 5, 10, and 15...

  18. Hybrid plasmonic waveguide in a metal V-groove

    SciTech Connect (OSTI)

    Chen, Zhao-xian; Wu, Zi-jian; Ming, Yang; Zhang, Xue-jin, E-mail: xuejinzh@nju.edu.cn; Lu, Yan-qing, E-mail: yqlu@nju.edu.cn [National Laboratory of Solid State Microstructures and College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093 (China)] [National Laboratory of Solid State Microstructures and College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093 (China)

    2014-01-15T23:59:59.000Z

    We propose and investigate a type of hybrid plasmonic waveguide in a metal V-groove. A high-permittivity nanowire was placed in the metal channel covered with a dielectric film of lower permittivity. Deeper sub-wavelength confinement and much longer propagation distance were achieved in comparison with conventional channel plasmonic waveguides. The overall performance was improved as compared with the conventional hybrid plasmonic structure based on a flat metal surface. Finite element analysis showed that both the mode propagation and field profile can be adjusted by changing the nanowire radius and film thickness. Some benefits, such as a reduced scattering loss caused by the surface roughness, are also expected owing to the unique mode profile. The proposed approach has potential for application in high-level photonic integration.

  19. A new three-control-volume theory for circumferentially-grooved liquid seals

    E-Print Network [OSTI]

    Marquette, Olivier Robert

    1994-01-01T23:59:59.000Z

    Circumferentially-grooved seals are used in centrifugal pumps to reduce leakage flow. Florjancic (1990) developed an analysis using a partition of the seal into three control volumes, bulk-flow theory and Hirs' lubrication equations. This thesis...

  20. Response of a grooved plate subjected to out-of-plane contact loading

    E-Print Network [OSTI]

    Bastien, Christopher J

    2008-01-01T23:59:59.000Z

    The response of a grooved plate subjected to out-of-plane contact loading is examined. The influence of selected geometric and loading parameters are investigated, as well as the effects of various boundary conditions. The ...

  1. Surface plasmon-polaritons in periodic arrays of V-grooves strongly coupled to quantum emitters

    E-Print Network [OSTI]

    Blake, Adam

    2015-01-01T23:59:59.000Z

    We investigate the optical response of a system consisting of periodic silver V-grooves interacting with quantum emitters. Two surface plasmon-polariton resonances are identified in the reflection spectrum of bare silver grooves, with the intensity of one resonance being localized near the bottom of the groove and that of the other resonance being distributed throughout the entire groove. The linear response of the hybrid silver-emitter system is thoroughly analyzed by considering the coupling between surface plasmon polaritons and emitters as the geometry of the grooves and the spatial distribution of emitters within the grooves are varied. The nonlinear response of the system is also considered by pumping the emitters with a short, high-intensity pulse. By changing the duration or the intensity of the pump, the population of emitters in the ground state at the end of the pump is varied, and it is found (upon probing with a short pulse) that an increase in the fraction of emitters in the ground state corresp...

  2. NMR studies of DNA oligomers and their interactions with minor groove binding ligands

    SciTech Connect (OSTI)

    Fagan, P A [Univ. of California, Berkeley, CA (United States). Dept. of Chemistry

    1996-05-01T23:59:59.000Z

    The cationic peptide ligands distamycin and netropsin bind noncovalently to the minor groove of DNA. The binding site, orientation, stoichiometry, and qualitative affinity of distamycin binding to several short DNA oligomers were investigated by NMR spectroscopy. The oligomers studied contain A,T-rich or I,C-rich binding sites, where I = 2-desaminodeoxyguanosine. I{center_dot}C base pairs are functional analogs of A{center_dot}T base pairs in the minor groove. The different behaviors exhibited by distamycin and netropsin binding to various DNA sequences suggested that these ligands are sensitive probes of DNA structure. For sites of five or more base pairs, distamycin can form 1:1 or 2:1 ligand:DNA complexes. Cooperativity in distamycin binding is low in sites such as AAAAA which has narrow minor grooves, and is higher in sites with wider minor grooves such as ATATAT. The distamycin binding and base pair opening lifetimes of I,C-containing DNA oligomers suggest that the I,C minor groove is structurally different from the A,T minor groove. Molecules which direct chemistry to a specific DNA sequence could be used as antiviral compounds, diagnostic probes, or molecular biology tools. The author studied two ligands in which reactive groups were tethered to a distamycin to increase the sequence specificity of the reactive agent.

  3. Increase of the electron mobility in HEMT heterostructures with composite spacers containing AlAs nanolayers

    SciTech Connect (OSTI)

    Vinichenko, A. N., E-mail: vanaxel@gmail.com; Gladkov, V. P.; Kargin, N. I.; Strikhanov, M. N.; Vasil’evskii, I. S. [National Research Nuclear University “MEPhI” (Russian Federation)

    2014-12-15T23:59:59.000Z

    The effect of the hybridization of quantum states on electron transport in a two-barrier quantum well ?-doped through a spacer layer at the limit of heavy doping is shown theoretically and experimentally. A method for increasing the electron mobility in the quantum well by suppressing the tunnel coupling with the donor region through the introduction of an AlAs nanobarrier into the spacer layer is proposed. It is experimentally shown that, in the samples with a shallow quantum well, the AlAs nanobarrier introduced into the spacer layer provides a larger than threefold increase in the electron mobility at low temperatures.

  4. Experimental Study of Two Phase Flow Behavior Past BWR Spacer Grids

    SciTech Connect (OSTI)

    Ratnayake, Ruwan K.; Hochreiter, L.E.; Ivanov, K.N.; Cimbala, J.M. [The Pennsylvania State University, 237 Reber Building, University Park, PA (United States)

    2002-07-01T23:59:59.000Z

    Performance of best estimate codes used in the nuclear industry can be significantly improved by reducing the empiricism embedded in their constitutive models. Spacer grids have been found to have an important impact on the maximum allowable Critical Heat Flux within the fuel assembly of a nuclear reactor core. Therefore, incorporation of suitable spacer grids models can improve the critical heat flux prediction capability of best estimate codes. Realistic modeling of entrainment behavior of spacer grids requires understanding the different mechanisms that are involved. Since visual information pertaining to the entrainment behavior of spacer grids cannot possibly be obtained from operating nuclear reactors, experiments have to be designed and conducted for this specific purpose. Most of the spacer grid experiments available in literature have been designed in view of obtaining quantitative data for the purpose of developing or modifying empirical formulations for heat transfer, critical heat flux or pressure drop. Very few experiments have been designed to provide fundamental information which can be used to understand spacer grid effects and phenomena involved in two phase flow. Air-water experiments were conducted to obtain visual information on the two-phase flow behavior both upstream and downstream of Boiling Water Reactor (BWR) spacer grids. The test section was designed and constructed using prototypic dimensions such as the channel cross-section, rod diameter and other spacer grid configurations of a typical BWR fuel assembly. The test section models the flow behavior in two adjacent sub channels in the BWR core. A portion of a prototypic BWR spacer grid accounting for two adjacent channels was used with industrial mild steel rods for the purpose of representing the channel internals. Symmetry was preserved in this practice, so that the channel walls could effectively be considered as the channel boundaries. Thin films were established on the rod surfaces by injecting water through a set of perforations at the bottom ends of the rods, ensuring that the flow upstream of the bottom-most spacer grid is predominantly annular. The flow conditions were regulated such that they represent typical BWR operating conditions. Photographs taken during experiments show that the film entrainment increases significantly at the spacer grids, since the points of contact between the rods and the grids result in a peeling off of large portions of the liquid film from the rod surfaces. Decreasing the water flow resulted in eventual drying out, beginning at positions immediately upstream of the spacer grids. (authors)

  5. Apparatus and methods for aligning holes through wheels and spacers and stacking the wheels and spacers to form a turbine rotor

    DOE Patents [OSTI]

    Berry, Robert Randolph (Greenville, SC); Palmer, Gene David (Clifton Park, NY); Wilson, Ian David (Clifton Park, NY)

    2000-01-01T23:59:59.000Z

    A gas turbine rotor stacking fixture includes upstanding bolts for reception in aligned bolt holes in superposed aft disk, wheels and spacers and upstanding alignment rods received in openings of the disk, wheels and spacers during the rotor stacking assembly. The axially registering openings enable insertion of thin-walled tubes circumferentially about the rim of the rotor, with tight tolerances to the openings to provide supply and return steam for cooling buckets. The alignment rods have radial dimensions substantially less than their dimensions in a circumferential direction to allow for radial opening misalignment due to thermal expansion, tolerance stack-up and wheel-to-spacer mismatch due to rabbet mechanical growth. The circumferential dimension of the alignment rods affords tightly toleranced alignment of the openings through which the cooling tubes are installed.

  6. Microsoft Word - CX-Schultz-Raver_3_and_4_spacers_WEBa.doc

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

    Action: Replace spacer dampers along the Schultz - Raver No. 3 & 4 500-kV transmission lines Budget Information: Work Order 255064 PP&A Project No.: PP&A 1160 Categorical...

  7. Design and Fabrication of End Spacers for a 13T Nb3Sn Dipole Magnet

    E-Print Network [OSTI]

    Caspi, S.

    2011-01-01T23:59:59.000Z

    origin a ll y ma chined from wax billets which were later ~sa large nwnber of different wax spacers co uld be manu factumade from Lucile or machinable wax wiU) an oute r dinme ter

  8. Microsoft Word - CX-Slatt-John Day Spacers_WEB.doc

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

    4, 2010 REPLY TO ATTN OF: KEPR-4 SUBJECT: Environmental Clearance Memorandum Corinn Castro Project Manager - TELM-TPP-3 Proposed Action: Replace spacer dampers along the Slatt-John...

  9. Microsoft Word - CX-Echo Lake-Monroe Spacers_WEB.doc

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

    17, 2010 REPLY TO ATTN OF: KEPR-4 SUBJECT: Environmental Clearance Memorandum Corinn Castro Project Manager - TELM-TPP-3 Proposed Action: Spacer-damper replacements on the Echo...

  10. C-H..O Hydrogen Bonds in Minor Groove of A-tracts in DNA Double Helices

    E-Print Network [OSTI]

    Bansal, Manju

    C-H..O Hydrogen Bonds in Minor Groove of A-tracts in DNA Double Helices Anirban Ghosh and Manju-pair as well as cross-strand C-H..O hydrogen bonds in the minor groove. The C2-H2..O2 hydrogen bonds within leads to a narrow minor groove in these regions. # 1999 Academic Press Keywords: C-H..O hydrogen bonds

  11. Effect of grooves cut on the periphery of a circular hole in bars subjected to tension

    E-Print Network [OSTI]

    Schmalz, Juan Ricardo

    1967-01-01T23:59:59.000Z

    of FIASTER OF SClENCE August 1967 Plajor Suhj cot: ~Iechanical Engineerdng EI'1'ECT 01 GROOVES CUT OV THE PERIPHERY OF A CIRCULAR HOLE IN BARS SUBJECTED TO TENSION A Thesis by JUAN RICARDO SCHNALZ Approved as to style and content by: ~Head... ~ ~ ~ ~ ~ ~ ~ ~ ~ 19 20 21 Tube and 22 IV EFFECT. OF GROOVES CUT ON THZ PERIL'T~RX OF A CZN1ERZD CIRCULAR HOIZ IN BARS SUBJECTED TO TENSION . . . . . . . . . , 23 General Results and Discussion . . . 23 Comparison of Re ults and Conclu ion. 46 BIBLIOGRAPHY L9...

  12. A numerical study of compressible flow in labyrinth seals with rub grooves

    E-Print Network [OSTI]

    Adams, Richard Gordon

    1997-01-01T23:59:59.000Z

    control volume, m 2 convection-diffusion coefficient mass source, kg/s seal clearance, mm turbulence model constant discharge coefficient coefficient of (hc pressurc-difference term rub groove depth, mm constant used in the law of the wall i9. 973...) rub groove width, mm stagnation enthalpy, specific turbulence kinetic energy, m /s 2 2 defined as 1/RT, characteristic length scale mass flow rate, kg/s number of teeth in a labyrinth seal pressure, MPa production of turbulence kmetic energy, m...

  13. Microsoft Word - CX-SpacerInsulatorRepProg3rd4thQtr2012FY12_WEB...

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

    28, 2012 REPLY TO ATTN OF: KEP-4 SUBJECT: Environmental Clearance Memorandum Frank Weintraub Project Manager - TEP-TPP-1 Proposed Action: 2012 Spacer and Insulator Replacement...

  14. Numerical simulation of turbulent heat transfer in an annular fuel channel augmented by spacer ribs

    SciTech Connect (OSTI)

    Takase, Kazuyuki; Akino, Norio [Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Dept. of High Temperature Engineering

    1995-12-31T23:59:59.000Z

    Thermal-hydraulic characteristics of fuel channels with three dimensional trapezoidal spacer ribs for high temperature gas-cooled reactors were investigated under the same coolant conditions as the reactor operation, maximum fuel channel outlet temperature of 1,000 C and pressure of 4 MPa, and analytically by numerical simulations using the {kappa}-{var_epsilon} turbulence model. The turbulent heat transfer coefficients in the spacer ribbed fuel channel were 20 to 100% higher than those in a concentric smooth annulus for a region of Reynolds number exceeding 2,000. Furthermore, the predicted Nusselt number in the spacer ribbed fuel channel was in good agreement with the empirical correlation obtained from the present experimental data within an error of 10% with Reynolds number of more than 5000. On the other hand, the friction factors in the spacer ribbed fuel channel were higher than those in the smooth duct in the turbulent region, and also they could be predicted with sufficient accuracy. In addition, the present numerical simulation could clarify quantitatively the effects of the heat transfer augmentation due to the spacer ribs and the axial velocity increase due to a reduction in the annular channel cross-section.

  15. Rotor bore and turbine rotor wheel/spacer heat exchange flow circuit

    DOE Patents [OSTI]

    Caruso, Philip M. (Selkirk, NY); Eldrid, Sacheverel Quentin (Saratoga Springs, NY); Ladhani, Azad A. (Niskayuna, NY); DeMania, Alan Richard (Niskayuna, NY); Palmer, Gene David (Clifton Park, NY); Wilson, Ian David (Clifton Park, NY); Rathbun, Lisa Shirley (Scotia, NY); Akin, Robert Craig (Schenectady, NY)

    2002-01-01T23:59:59.000Z

    In a turbine having closed-circuit steam-cooling passages about the rim of the rotor during steady-state operation, compressor discharge air is supplied to the rotor bore for passage radially outwardly into the wheel space cavities between the wheels and spacers. Communicating slots and channels in the spacers and wheels at circumferentially spaced positions enable egress of the compressor discharge air into the hot gas flow path. At turbine startup, cooling air flows through the closed-circuit steam passages to cool the outer rim of the rotor while compressor discharge air pre-warms the wheels and spacers. At steady-state, cooling steam is supplied in the closed-circuit steam-cooling passages and compressor discharge air is supplied through the bore and into the wheel space cavities to cool the rotor.

  16. Grain-Boundary Grooving of Plasma-Sprayed Yttria-Stabilized Zirconia Thermal Barrier Coatings

    E-Print Network [OSTI]

    Trice, Rodney W.

    Grain-Boundary Grooving of Plasma-Sprayed Yttria-Stabilized Zirconia Thermal Barrier Coatings Engineering, West Lafayette, Indiana 47907 The focus of this study was to determine the mechanisms re- sponsible for the microstructural changes of plasma-sprayed 7 wt% Y2O3­ZrO2 thermal barrier coatings

  17. Prediction method of basic domain structure in Fe3%Si(110) single crystal with grooved surface

    SciTech Connect (OSTI)

    Iwata, K., E-mail: iwata.24h.keiji@jp.nssmc.com [Advanced Technology Research Laboratories, Nippon Steel and Sumitomo Metal Corporation, Futtsu, Chiba 293-8511 (Japan); Research Institute of Electrical Communication, Tohoku University, Aoba, Sendai 980-8577 (Japan); Fujikura, M. [Yawata R and D Laboratories, Nippon Steel and Sumitomo Metal Corporation, Tobata, Kitakyushu, Fukuoka 804-8501 (Japan); Arai, S. [Steel Research Laboratories, Nippon Steel and Sumitomo Metal Corporation, Futtsu, Chiba 293-8511 (Japan); Ishiyama, K. [Research Institute of Electrical Communication, Tohoku University, Aoba, Sendai 980-8577 (Japan)

    2014-05-07T23:59:59.000Z

    This paper proposes the method to accurately predict the 180° basic domain width (D{sub w}) in demagnetized states of the grooved Fe3%Si(110) single crystal with the tilt angle of [001] out of the sheet surface (?). The evaluation of D{sub w} enables the estimation of the anomalous eddy current losses. In this paper, D{sub w} is optimized to minimize the magnetic Gibbs free energy represented by vector potentials using the finite element method and the conjugate gradient method. The ?*-method is adopted to approximate the magnetization relaxation. The stray field energy generated by the magnetic charges occurring on both grooves cross section and sheet surfaces is considered in our proposed method. The validity of the proposed method was confirmed by comparison with the observed D{sub w}. As a result, we could reveal the ? dependence of D{sub w} against the groove depth. Moreover, the theoretical threshold of the domain refinement due to the grooves has been suggested.

  18. Ion Beam Sputter Fabrication of Micro-Grooving and Micro-Threading Tools

    SciTech Connect (OSTI)

    ADAMS,DAVID P.; VASILE,M.J.; KRISHNAN,A.S.M.

    1999-11-05T23:59:59.000Z

    This paper presents techniques for fabricating microscopic, nonplanar features in a variety of materials. Micro-grooving and micro-threading tools having cutting dimensions of 10-30{micro}m are made by focused ion beam sputtering and used in ultra-precision machining. Tool fabrication involves directing a 20 keV gallium beam at polished cylindrical punches made of cobalt M42 high-speed steel or C2 tungsten carbide. This creates cutting edges having radii of curvature less than 0.4 {micro}m, and rake features similar to conventional lathe tools. Clearance for minimizing frictional drag of a tool results from the sputter yield dependence on ion herd target incidence angle. Numerically controlled, ultra-precision machining with micro-grooving tools results in a close matching between tool width and feature size. Microtools controllably machine 13 {micro}m wide, 4 {micro}m deep, helical grooves in polymethyl methacrylate and 6061-T6 Al cylindrical substrates. Micro-grooving tools also fabricate sinusoidal waveform features in polished metal substrates.

  19. Micro-Grooving and Micro-Threading Tools for Fabricating Curvilinear Features

    SciTech Connect (OSTI)

    ADAMS,DAVID P.; VASILE,MICHAEL J.; KRISHNAN,A.S.M.

    2000-07-24T23:59:59.000Z

    This paper presents techniques for fabricating microscopic, curvilinear features in a variety of workpiece materials. Micro-grooving and micro-threading tools having cutting widths as small as 13 {micro}m are made by focused ion beam sputtering and used for ultra-precision machining. Tool fabrication involves directing a 20 keV gallium beam at polished cylindrical punches made of cobalt M42 high-speed steel or C2 tungsten carbide to create a number of critically aligned facets. Sputtering produces rake facets of desired angle and cutting edges having radii of curvature equal to 0.4 {micro}m. Clearance for minimizing frictional drag of a tool results from a particular ion beam/target geometry that accounts for the sputter yield dependence on incidence angle. It is believed that geometrically specific cutting tools of this dimension have not been made previously. Numerically controlled, ultra-precision machining with micro-grooving tools results in a close match between tool width and feature size. Microtools are used to machine 13 {micro}m wide, 4 {micro}m deep, helical grooves in polymethyl methacrylate and 6061 Al cylindrical workplaces. Micro-grooving tools are also used to fabricate sinusoidal cross-section features in planar metal samples.

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

    E-Print Network [OSTI]

    Mahecha Mojica, Lady Paola

    2011-10-21T23:59:59.000Z

    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...

  1. A Serenitatis origin for the Imbrian grooves and South Pole-Aitken thorium anomaly

    E-Print Network [OSTI]

    Zuber, Maria

    1 A Serenitatis origin for the Imbrian grooves and South Pole-Aitken thorium anomaly Mark A) basin contains a high abundance of thorium and a unique Imbrian aged geomorphologic unit that consists are almost antipodal to the Imbrium basin, where high-thorium ejecta and seismic energy are expected to have

  2. Measuring the Influence of Grain-Boundary Misorientation on Thermal Groove Geometry in Ceramic Polycrystals

    E-Print Network [OSTI]

    Rohrer, Gregory S.

    -boundary energies is to measure the geometry of the thermal grooves that form where the boundaries intersect a free is the excess free energy per unit area of the ith interface; ti the unit vector that lies in the ith interface) reduces to: gb s = 2 cos s 2 (2) In Eq. (2), the ratio of the grain-boundary excess free energy

  3. Phosphorylation Regulates Assembly of the Caspase-6 Substrate-Binding Groove

    E-Print Network [OSTI]

    Hardy, Jeanne

    Structure Article Phosphorylation Regulates Assembly of the Caspase-6 Substrate-Binding Groove Elih M. Vela´ zquez-Delgado1 and Jeanne A. Hardy1,* 1Department of Chemistry, University of Massachusetts's and Alzheimer's diseases. A full understanding of caspase-6 regulation is crucial to caspase-6- specific

  4. NMR Characterization of Hairpin Polyamide Complexes with the Minor Groove of DNA

    E-Print Network [OSTI]

    Mrksich, Milan

    and Mabel Beckman Laboratories of Chemical Synthesis, California Institute of Technology, Pasadena of pyrrole-imidazole polyamides in the minor groove has developed into a general model for the sequence depends on the sequence of side-by-side amino acid pairings. A pairing of imidazole opposite pyrrole

  5. Annu. Rev. Biophys. Biomol. Struct. 1998. 27:10531 MINOR GROOVE-BINDING

    E-Print Network [OSTI]

    Clore, G. Marius

    by architectural proteins that typically lack the potential to activate transcription or carry out recombinationAnnu. Rev. Biophys. Biomol. Struct. 1998. 27:105­31 MINOR GROOVE-BINDING ARCHITECTURAL PROTEINS protein, HMG-box proteins, integration host factor, HMG I(Y), DNA bending ABSTRACT To date, high

  6. Reading of DNA Sequence Logos: Prediction of Major Groove Binding by Information

    E-Print Network [OSTI]

    Schneider, Thomas D.

    Reading of DNA Sequence Logos: Prediction of Major Groove Binding by Information Theory Thomas D: http://www.lecb.ncifcrf.gov/~toms/how.to.read.sequence.logos/index.html running title: Reading Sequence Logos #3; National Cancer Institute, Frederick Cancer Research and Development Center, Lab- oratory

  7. Probing Minor Groove Hydrogen Bonding Interactions between RB69 DNA Polymerase and DNA

    SciTech Connect (OSTI)

    Xia, Shuangluo; Christian, Thomas D.; Wang, Jimin; Konigsberg, William H. (Yale)

    2012-09-17T23:59:59.000Z

    Minor groove hydrogen bonding (HB) interactions between DNA polymerases (pols) and N3 of purines or O2 of pyrimidines have been proposed to be essential for DNA synthesis from results obtained using various nucleoside analogues lacking the N3 or O2 contacts that interfered with primer extension. Because there has been no direct structural evidence to support this proposal, we decided to evaluate the contribution of minor groove HB interactions with family B pols. We have used RB69 DNA pol and 3-deaza-2'-deoxyadenosine (3DA), an analogue of 2-deoxyadenosine, which has the same HB pattern opposite T but with N3 replaced with a carbon atom. We then determined pre-steady-state kinetic parameters for the insertion of dAMP opposite dT using primer/templates (P/T)-containing 3DA. We also determined three structures of ternary complexes with 3DA at various positions in the duplex DNA substrate. We found that the incorporation efficiency of dAMP opposite dT decreased 10{sup 2}-10{sup 3}-fold even when only one minor groove HB interaction was missing. Our structures show that the HB pattern and base pair geometry of 3DA/dT is exactly the same as those of dA/dT, which makes 3DA an optimal analogue for probing minor groove HB interactions between a DNA polymerase and a nucleobase. In addition, our structures provide a rationale for the observed 10{sup 2}-10{sup 3}-fold decrease in the rate of nucleotide incorporation. The minor groove HB interactions between position n-2 of the primer strand and RB69pol fix the rotomer conformations of the K706 and D621 side chains, as well as the position of metal ion A and its coordinating ligands, so that they are in the optinal orientation for DNA synthesis.

  8. Molecular comparisons of Babesia odocoilei using the internal transcribed spacers of ribosomal RNA

    E-Print Network [OSTI]

    Schoelkopf, Lorien

    2005-11-01T23:59:59.000Z

    and host range continue to extend as new incidence of infection is detected. A genomic DNA region spanning the internal transcribed spacer 1 (ITS1), 5.8S rRNA gene, and ITS2 of ribosomal RNA (rRNA) from 18 B. odocoilei isolates (speciation confirmed...

  9. Nuclear ribosomal internal transcribed spacer (ITS) region as a universal DNA barcode marker for Fungi

    E-Print Network [OSTI]

    Nuclear ribosomal internal transcribed spacer (ITS) region as a universal DNA barcode marker Biodiversity (Mycology and Microbiology), Agriculture and Agri-Food Canada, Ottawa, ON, Canada K1A 0C6; c the nuclear ribosomal RNA cistron were compared together with regions of three representative protein- coding

  10. Using cathode spacers to minimize reactor size in air cathode microbial fuel cells Qiao Yang a

    E-Print Network [OSTI]

    Engineering, Penn State University, 231Q Sackett Building, University Park, PA 16802, USA a r t i c l e i n f January 2012 Available online 30 January 2012 Keywords: Microbial fuel cell Spacer Oxygen demand Scale up into electricity (Kim et al., 2002; Logan et al., 2006). Certain types of bacteria, called exoelectrogens, can

  11. CFD Validation of Gas Injection in Flowing Mercury over Vertical Smooth and Grooved Wall

    SciTech Connect (OSTI)

    Abdou, Ashraf A [ORNL; Wendel, Mark W [ORNL; Felde, David K [ORNL; Riemer, Bernie [ORNL

    2009-01-01T23:59:59.000Z

    The Spallation Neutron Source (SNS) is an accelerator-based neutron source at Oak Ridge National Laboratory (ORNL).The nuclear spallation reaction occurs when a proton beam hits liquid mercury. This interaction causes thermal expansion of the liquid mercury which produces high pressure waves. When these pressure waves hit the target vessel wall, cavitation can occur and erode the wall. Research and development efforts at SNS include creation of a vertical protective gas layer between the flowing liquid mercury and target vessel wall to mitigate the cavitation damage erosion and extend the life time of the target. Since mercury is opaque, computational fluid dynamics (CFD) can be used as a diagnostic tool to see inside the liquid mercury and guide the experimental efforts. In this study, CFD simulations of three dimensional, unsteady, turbulent, two-phase flow of helium gas injection in flowing liquid mercury over smooth, vertically grooved and horizontally grooved walls are carried out with the commercially available CFD code Fluent-12 from ANSYS. The Volume of Fluid (VOF) model is used to track the helium-mercury interface. V-shaped vertical and horizontal grooves with 0.5 mm pitch and about 0.7 mm depth were machined in the transparent wall of acrylic test sections. Flow visualization data of helium gas coverage through transparent test sections is obtained with a high-speed camera at the ORNL target test facility (TTF). The helium gas mass flow rate is 8 mg/min and introduced through a 0.5 mm diameter port. The local mercury velocity is 0.9 m/s. In this paper, the helium gas flow rate and the local mercury velocity are kept constant for the three cases. Time integration of predicted helium gas volume fraction over time is done to evaluate the gas coverage and calculate the average thickness of the helium gas layer. The predicted time-integrated gas coverage over vertically grooved and horizontally grooved test sections is better than over a smooth wall. The simulations show that the helium gas is trapped inside the grooves. The predicted time-averaged gas coverage is in good qualitative agreement with the measured gas coverage.

  12. JOURNAL OF MICROELECTROMECHANICAL SYSTEMS, VOL. 19, NO. 1, FEBRUARY 2010 99 A Microfabricated Spiral-Groove Turbopump

    E-Print Network [OSTI]

    Rubloff, Gary W.

    is reported. The device is composed of a spiral-groove viscous pump driven by a radial in-flow microturbine--Microelectromechanical systems (MEMS) bear- ings, micropumps, microturbines, power MEMS, turbopump. I. INTRODUCTION SINCE the mid

  13. A coupled model for ring dynamics, gas flow, and oil flow through the ring grooves in IC engines

    E-Print Network [OSTI]

    Jia, Ke, S. M. Massachusetts Institute of Technology

    2009-01-01T23:59:59.000Z

    Oil flows through ring/groove interface play a critical role in oil transport among different regions the piston ring pack of internal combustion engines. This thesis work is intended to improve the understanding and ...

  14. High density, optically corrected, micro-channel cooled, v-groove monolithic laser diode array

    DOE Patents [OSTI]

    Freitas, B.L.

    1998-10-27T23:59:59.000Z

    An optically corrected, micro-channel cooled, high density laser diode array achieves stacking pitches to 33 bars/cm by mounting laser diodes into V-shaped grooves. This design will deliver > 4kW/cm{sup 2} of directional pulsed laser power. This optically corrected, micro-channel cooled, high density laser is usable in all solid state laser systems which require efficient, directional, narrow bandwidth, high optical power density pump sources. 13 figs.

  15. High density, optically corrected, micro-channel cooled, v-groove monolithic laser diode array

    DOE Patents [OSTI]

    Freitas, Barry L. (Livermore, CA)

    1998-01-01T23:59:59.000Z

    An optically corrected, micro-channel cooled, high density laser diode array achieves stacking pitches to 33 bars/cm by mounting laser diodes into V-shaped grooves. This design will deliver>4kW/cm2 of directional pulsed laser power. This optically corrected, micro-channel cooled, high density laser is usable in all solid state laser systems which require efficient, directional, narrow bandwidth, high optical power density pump sources.

  16. Web-enabled project management and collaboration using Microsoft Groove system

    E-Print Network [OSTI]

    Yuksel, Kamer

    2008-10-10T23:59:59.000Z

    to commonly used project management and collaboration systems in the construction industry. A sample Groove workspace is developed and demonstrated with customized modules and templates for a typical construction project. iv ACKNOWLEDGEMENTS I... completion of the project with an acceptable quality and within budget. Without a purpose there is no reason for collaboration. Shared paradigm, on the other hand, represents the values, methods, and practices commonly accepted by all the team members...

  17. Mitochondrial Intergenic Spacer in Fairy Basslets (Serranidae: Anthiinae) and the Simultaneous Analysis of Nucleotide and Rearrangement Data

    E-Print Network [OSTI]

    Smith, William Leo; Smith, Kathleen R.; Wheeler, Ward C.

    2009-07-01T23:59:59.000Z

    We present the results of a study that implements a recently developed phylogenetic algorithm that combines fixed-states nucleotide optimization with breakpoint analysis to identify and examine the evolution of a mitochondrial intergenic spacer...

  18. Non-Intrusive Experiemental Investigation of Multi-Scale Flow Behavior in Rod Bundle with Spacer-Grids

    E-Print Network [OSTI]

    Dominguez Ontiveros, Elvis Efren

    2011-08-08T23:59:59.000Z

    Experiments investigating complex flows in rod bundles with spacer grids that have mixing devices (such as flow mixing vanes) have mostly been performed using single-point measurements. Although these measurements allow local comparisons...

  19. Read/write head for a magnetic tape device having grooves for reducing tape floating

    DOE Patents [OSTI]

    Aoki, Kenji (Kawasaki, JP)

    2005-08-09T23:59:59.000Z

    A read/write head for a magnetic tape includes an elongated chip assembly and a tape running surface formed in the longitudinal direction of the chip assembly. A pair of substantially spaced parallel read/write gap lines for supporting read/write elements extend longitudinally along the tape running surface of the chip assembly. Also, at least one groove is formed on the tape running surface on both sides of each of the read/write gap lines and extends substantially parallel to the read/write gap lines.

  20. Computer Simulated Transient Analysis of a Polyimide V-Groove Leg Actuator with Serpentine Heater for a Walking Micro-Robot

    E-Print Network [OSTI]

    Kandlikar, Satish

    Computer Simulated Transient Analysis of a Polyimide V-Groove Leg Actuator with Serpentine Heater simulations done on a polyimide V-groove leg actuator for a walking micro-robot, to investigate the optimal of Technology, Sweden. The principle of actuation is based on the thermal expansion of polyimide inside a V

  1. SPACE-R nuclear power system SC-320 thermionic fuel element performance tests

    SciTech Connect (OSTI)

    Luchau, D.W.; Bruns, D.R. [Team Specialty Services, Inc., Albuquerque, NM (United States); Nikolaev, Y.V. [SIA LUCH Scientific Research Inst., Podolsk (Russian Federation)] [and others

    1996-12-31T23:59:59.000Z

    In 1993 and 1994, the Russian Scientific Research Institute NII NPO ``LUCH`` and Space Power, Inc., (SPI), of San Jose, California, developed a prototype of the single-cell thermionic fuel element (TFE) for the SPACE-R space nuclear power system (NPS). The SPACE-R system was designed as a part of the US Department of Energy`s (DOE) Space Reactor Development Program to develop a long life, space reactor system capable of supplying up to 40 kW(e) output power. The jointly developed SC-320 TFE is a prototype of the next generation thermionic converter for nuclear applications in space. This paper presents the results of the initial demonstration tests and subsequent parametric evaluations conducted on the SC-320 TFE as compared to the calculated performance characteristics. The demonstration tests were conducted jointly by Russian and American specialists at the Thermionic Evaluation Facility (TEF) at the New Mexico Engineering Research Institute (NMERI) of the University of New Mexico in Albuquerque.

  2. The effect of longitudinal spacer ribs on the minimum pressure drop in a heated annulus

    SciTech Connect (OSTI)

    Johnston, B.S.; Neff, J.M.

    1990-01-01T23:59:59.000Z

    When evaluating a heated flow passage for vulnerability to static flow excursions, special note should be taken of flow restrictions which might allow premature vapor generation. In this study, measurements of steady state pressure drop were made for the downward flow of water in a vertical annulus. The outer wall was uniformly heated to allow subcooled boiling. Minima in the pressure drop characteristics were compared for test sections with and without longitudinal spacer ribs. For a given power and inlet temperature, the minimum occurred at a higher flow rate in the ribbed test section. This is attributed to vapor generation at the ribs. The work cited in this document show how a restriction in a heated channel can produce vapor which would not be observed in the absence of the restriction. In the present study, the effect of a flow restriction on the tendency to flow excursion is explored by finding demand curves for a heated annulus in subcooled boiling flow. The annulus is heated from the outside, and alternately equipped with and without longitudinal spacer ribs. These ribs separate the heated and unheated walls; in pressing against the heated wall they provide a means for premature vapor production.

  3. Operation characteristics of cylindrical miniature grooved heat pipe using aqueous CuO nanofluids

    SciTech Connect (OSTI)

    Wang, Guo-Shan; Song, Bin; Liu, Zhen-Hua [School of Mechanical Engineering, Shanghai Jiaotong University, 200240 Shanghai (China)

    2010-11-15T23:59:59.000Z

    An experimental study was performed to investigate the operation characteristics of a cylindrical miniature grooved heat pipe using aqueous CuO nanofluid as the working fluid at some steady cooling conditions. The experiments were carried out under both the steady operation process and the unsteady startup process. The experiment results show that substituting the nanofluid for water as the working fluid can apparently improve the thermal performance of the heat pipe for steady operation. The total heat resistance and the maximum heat removal capacity of the heat pipe using nanofluids can maximally reduce by 50% and increase by 40% compared with that of the heat pipe using water, respectively. For unsteady startup process, substituting the nanofluid for water as the working fluid, cannot only improve the thermal performance, but also reduce significantly the startup time. (author)

  4. Superresolution imaging of single DNA molecules using stochastic photoblinking of minor groove and intercalating dyes

    E-Print Network [OSTI]

    Miller, Helen; Wollman, Adam J M; Leake, Mark C

    2015-01-01T23:59:59.000Z

    As proof-of-principle for generating superresolution structural information from DNA we applied a method of localization microscopy utilizing photoblinking comparing intercalating dye YOYO-1 against minor groove binding dye SYTO-13, using a bespoke multicolor single-molecule fluorescence microscope. We used a full-length ~49 kbp {\\lambda} DNA construct possessing oligo inserts at either terminus allowing conjugation of digoxigenin and biotin at opposite ends for tethering to a glass coverslip surface and paramagnetic microsphere respectively. We observed stochastic DNA-bound dye photoactivity consistent with dye photoblinking as opposed to binding/unbinding events, evidenced through both discrete simulations and continuum kinetics analysis. We analyzed dye photoblinking images of immobilized DNA molecules using superresolution reconstruction software from two existing packages, rainSTORM and QuickPALM, and compared the results against our own novel home-written software called ADEMS code. ADEMS code generated...

  5. Depth Profiling Photoelectron-Spectroscopic Study of an Organic Spin Valve with a Plasma-Modified Pentacene Spacer

    E-Print Network [OSTI]

    Lin, Minn-Tsong

    Depth Profiling Photoelectron-Spectroscopic Study of an Organic Spin Valve with a Plasma) in an organic spin valve with an oxygen plasma-treated pentacene (PC) spacer. The spin valve containing PC and in turn to enhance the MR performance in organic spin valves. INTRODUCTION Organic semiconductors (OSC

  6. SPACE-R nuclear power system TFE mock-up SC-320 demonstration test

    SciTech Connect (OSTI)

    Nikolaev, Y.V.; Eremin, S.A.; Kolesov, V.S.; Lapochkin, N.V.; Izhvanov, O.L.; Semin, R.N.; Androsov, V.N.; Agafonov, V.N. [Research Institute of SIA ``LUCH``, Podolsk (Russian Federation); Koester, J.K. [Space Power Incorporated, 621 River Oaks Parkway, San-Jose, California 95134 (United States)

    1996-03-01T23:59:59.000Z

    As a result of its 1993{endash}94 work, NII NPO {open_quote}{open_quote}LUCH{close_quote}{close_quote} developed a thermionic fuel element (TFE) SC-320 intended for use as part of a nuclear thermionic reactor-converter known as SPACE-R designed in the US and rated at 40 kW of output electric power. This paper presents the results of the demonstration electric power tests of the SC-320 TFE mock-up conducted in the US at the TSET testing facility located at the University of New Mexico. The data obtained are compared to the calculated characteristics as well as the output parameters of the Topaz-2 NPS TFEs. {copyright} {ital 1996 American Institute of Physics.}

  7. Correspondence Between Magnetoresistance and Magnetization in Co/Cu Multilayers Studied at Higher Spacer Layer Thickness

    SciTech Connect (OSTI)

    Patil, P. B.; Kumar, M. Senthil [Department of Physics, Indian Institute of Technology Bombay, Mumbai 400076 (India); Aswal, D. K.; Gupta, S. K. [Technical Physics and Prototype Engineering Division, BARC, Mumbai 400085 (India)

    2010-12-01T23:59:59.000Z

    A series of [Cu(t{sub Cu})/Co(25 A)]{sub 25} multilayers at higher spacer layer thickness have been deposited by dc magnetron sputtering. Magnetoresistance (MR) measurements have been carried out at different temperatures. MR curves showed hysteresis by displaying peaks at magnetic field H{sub p}. The field values exhibiting the maximum resistance in the magnetoresistance curve (H{sub p}) were greater than the coercivity (H{sub c}). The correspondence between the shape of the MR curve and that of the magnetization curve has been established and observed peak splitting in MR curves is attributed to a hardening in the magnetization reversal of some magnetic grains.

  8. Switchable wavelength-selective and diffuse metamaterial absorber/emitter with a phase transition spacer layer

    SciTech Connect (OSTI)

    Wang, Hao; Yang, Yue; Wang, Liping, E-mail: liping.wang@asu.edu [School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, Arizona 85287 (United States)

    2014-08-18T23:59:59.000Z

    We numerically demonstrate a switchable metamaterial absorber/emitter by thermally turning on or off the excitation of magnetic resonance upon the phase transition of vanadium dioxide (VO{sub 2}). Perfect absorption peak exists around the wavelength of 5??m when the excitation of magnetic resonance is supported with the insulating VO{sub 2} spacer layer. The wavelength-selective absorption is switched off when the magnetic resonance is disabled with metallic VO{sub 2} that shorts the top and bottom metallic structures. The resonance wavelength can be tuned with different geometry, and the switchable metamaterial exhibits diffuse behaviors at oblique angles. The results would facilitate the design of switchable metamaterials for active control in energy and sensing applications.

  9. The effect of anterior proton beams in the setting of a prostate-rectum spacer

    SciTech Connect (OSTI)

    Christodouleas, John P., E-mail: christojo@uphs.upenn.edu [Department of Radiation Oncology, Hospital of the University of Pennsylvania, Philadelphia, PA (United States); Tang, Shikui [Department of Radiation Oncology, Hospital of the University of Pennsylvania, Philadelphia, PA (United States); Susil, Robert C.; McNutt, Todd R.; Song, Danny Y. [Department of Radiation Oncology and Radiation Molecular Sciences, Johns Hopkins Hospital, Baltimore, MD (United States); Bekelman, Justin; Deville, Curtiland; Vapiwala, Neha [Department of Radiation Oncology, Hospital of the University of Pennsylvania, Philadelphia, PA (United States); DeWeese, Theodore L. [Department of Radiation Oncology and Radiation Molecular Sciences, Johns Hopkins Hospital, Baltimore, MD (United States); Lu, Hsiao-Ming [Department of Radiation Oncology, Massachusetts General Hospital, Boston, MA (United States); Both, Stefan [Department of Radiation Oncology, Hospital of the University of Pennsylvania, Philadelphia, PA (United States)

    2013-10-01T23:59:59.000Z

    Studies suggest that anterior beams with in vivo range verification would improve rectal dosimetry in proton therapy for prostate cancer. We investigated whether prostate-rectum spacers would enhance or diminish the benefits of anterior proton beams in these treatments. Twenty milliliters of hydrogel was injected between the prostate and rectum of a cadaver using a transperineal approach. Computed tomography (CT) and magnetic resonance (MR) images were used to generate 7 uniform scanning (US) and 7 single-field uniform dose pencil-beam scanning (PBS) plans with different beam arrangements. Pearson correlations were calculated between rectal, bladder, and femoral head dosimetric outcomes and beam arrangement anterior scores, which characterize the degree to which dose is delivered anteriorly. The overall quality of each plan was compared using a virtual dose-escalation study. For US plans, rectal mean dose was inversely correlated with anterior score, but for PBS plans there was no association between rectal mean dose and anterior score. For both US and PBS plans, full bladder and empty bladder mean doses were correlated with anterior scores. For both US and PBS plans, femoral head mean doses were inversely correlated with anterior score. For US plans and a full bladder, 4 beam arrangements that included an anterior beam tied for the highest maximum prescription dose (MPD). For US plans and an empty bladder, the arrangement with 1 anterior and 2 anterior oblique beams achieved the highest MPD in the virtual dose-escalation study. The dose-escalation study did not differentiate beam arrangements for PBS. All arrangements in the dose-escalation study were limited by bladder constraints except for the arrangement with 2 posterior oblique beams. The benefits of anterior proton beams in the setting of prostate-rectum spacers appear to be proton modality dependent and may not extend to PBS.

  10. Does rail have a place in a rebuilt Christchurch?

    E-Print Network [OSTI]

    Hickman, Mark

    global green economy trends... 1 In 2008 `peak fossil fuel power investment' occurred: global renewable power investment higher than fossil fuel power investment for first time. Now 2:1... 2 In 2004 `peak oil production' occurred...no increase in production for 5 years... end of cheap oil. 4 In 2008

  11. Three-dimensional numerical simulations of heat transfer in an annular fuel channel with periodic spacer ribs under a fully developed turbulent flow

    SciTech Connect (OSTI)

    Takase, Kazuyuki [Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan)

    1997-05-01T23:59:59.000Z

    Thermal-hydraulic characteristics in a spacer-ribbed annular fuel channel for high-temperature gas-cooled reactors were analyzed numerically by three-dimensional computations under a fully developed turbulent flow. The two-equation {kappa}-{epsilon} turbulence model was applied in the present turbulent analysis, and the turbulence model constants for eddy viscosity and the turbulent Prandtl number were improved from the previous standard values to increase the accuracy of numerical simulations. Consequently, heat transfer coefficients and friction factors in the spacer-ribbed fuel channel were predicted with sufficient accuracy in the range of Reynolds number >3,000. It was clarified quantitatively that the main mechanism for heat transfer augmentation in the spacer-ribbed fuel channel was a combined effect of the turbulence promoter effect by the spacer rib and the velocity acceleration effect by a reduction in the channel cross section.

  12. Interference with histidyl-tRNA synthetase by a CRISPR spacer sequence as a factor in the evolution of Pelobacter carbinolicus

    E-Print Network [OSTI]

    Lovley, Derek

    carbinolicus, a bacterium of the family Geobacteraceae, cannot reduce Fe(III) directly or produce electricity for interference with hisS. Spacer #1 inhibited growth of a transgenic strain of Geobacter sulfurreducens in which

  13. Narrow groove gas tungsten arc welding of ASTM A508 Class 4 steel for improved toughness properties

    SciTech Connect (OSTI)

    Penik, M.A. Jr. [Rensselaer Polytechnic Inst., Troy, NY (United States)

    1997-04-01T23:59:59.000Z

    Welding of heavy section steel has traditionally used the automatic submerged arc welding (ASAW) process because of the high deposition rates achievable. However, the properties, particularly fracture toughness, of the weld are often inferior when compared to base material. This project evaluated the use of narrow groove gas tungsten arc welding (GTAW) to improve weld material properties. The welding procedures were developed for ASTM A508 Class 4 base material using a 1% Ni filler material complying to AWS Specification A.23-90-EF3-F3-N. A narrow groove joint preparation was used in conjunction with the GTAW process so competitive fabrication rates could be achieved when compared to the ASAW process. Weld procedures were developed to refine weld substructure to achieve better mechanical properties. Two heaters of weld wire were used to examine the effects of minor filler metal chemistry differences on weld mechanical properties. Extensive metallographic evaluations showed excellent weld quality with a refined microstructure. Chemical analysis of the weld metal showed minimal weld dilution by the base metal. Mechanical testing included bend and tensile tests to ensure weld quality and strength. A Charpy impact energy curve versus temperature and fracture toughness curve versus temperature were developed for each weld wire heat. Results of fracture toughness and Charpy impact testing indicated an improved transition temperature closer to that of the base material properties.

  14. MoO3 as combined hole injection layer and tapered spacer in combinatorial multicolor microcavity organic light emitting diodes

    SciTech Connect (OSTI)

    Liu, R.; Xu, Chun; Biswas, Rana; Shinar, Joseph; Shinar, Ruth

    2011-09-01T23:59:59.000Z

    Multicolor microcavity ({mu}C) organic light-emitting diode (OLED) arrays were fabricated simply by controlling the hole injection and spacer MoO{sub 3} layer thickness. The normal emission was tunable from {approx}490 to 640 nm and can be further expanded. A compact, integrated spectrometer with two-dimensional combinatorial arrays of {mu}C OLEDs was realized. The MoO{sub 3} yields more efficient and stable devices, revealing a new breakdown mechanism. The pixel current density reaches {approx}4 A/cm{sup 2} and a maximal normal brightness {approx}140 000 Cd/m{sup 2}, which improves photoluminescence-based sensing and absorption measurements.

  15. Development of a new feed channel spacer for reverse osmosis elements. Phase 2 final report, October 1, 1994--December 31, 1997

    SciTech Connect (OSTI)

    Milstead, C.E.; Riley, R.L.

    1998-02-11T23:59:59.000Z

    During Phase 1, computer modeling techniques were used as the prime instrument of evaluation of designs for a new feed channel spacer to replace the 30 mil thick standard mesh (Vexar) spacer currently used in ROWPU [Reverse Osmosis Water Processing Unit] spiral-wound elements. A hemispherical peg model, based on a Bed of Nails concept developed in Phase 1, was selected for prototype production of spiral-wound elements for field testing. Evaluation in the See-Thru test cell to observe pressure drops through the spacer, feed mixing patterns and ease of cleaning fouled membrane samples showed considerable benefit over Vexar. This design would be suitable for production by roll embossing (or rotary punching) methods instead of expensive injection molding techniques. A 10{1/2} inch die set was fabricated to prove this concept using a 12 ton press brake. Due to a number of factors, however, the equipment did not work as anticipated and numerous modifications are currently in progress. This work will continue at no cost to the government until completed. A seawater test system has been constructed for field testing of various commercially available feed channel spacers for comparison with the Vexar spacer.

  16. Spacer-less, decoupled granular L1{sub 0} FePt magnetic media using Ar-He sputtering gas

    SciTech Connect (OSTI)

    Kundu, Shreya [Department of Electrical and Computer Engineering, National University of Singapore, 21 Lower Kent Ridge Road, Singapore 117576 (Singapore); Institute of Materials Research and Engineering, A-STAR (Agency for Science, Technology and Research), 3 Research Link, Singapore 117602 (Singapore); Gaur, Nikita; Yang, Hyunsoo; Bhatia, Charanjit S. [Department of Electrical and Computer Engineering, National University of Singapore, 21 Lower Kent Ridge Road, Singapore 117576 (Singapore); Saifullah, M. S. M. [Institute of Materials Research and Engineering, A-STAR (Agency for Science, Technology and Research), 3 Research Link, Singapore 117602 (Singapore)

    2012-12-01T23:59:59.000Z

    Spacer materials are often used to fabricate granular L1{sub 0} FePt media and reduce the grain size, however, at the expense of reduced out-of-plane coercivity. Here, we demonstrate a spacer-less method in which adding 1% helium to argon sputtering gas leads to a substantial improvement in the chemical ordering, as well as the magnetic and microstructural properties of FePt. This change is attributed to the modification in the ion current density of the plasma caused by the excited metastable helium species. Helium plays a pivotal role in providing the Fe and Pt atoms optimal adatom mobility, thereby, producing well-ordered L1{sub 0} FePt media. This leads to an enhancement of the out-of-plane coercivity from 15 to 22 kOe. Furthermore, exchange decoupled grains with a twofold reduction in their diameter to {approx}24 nm are also achieved. These properties are crucial for magnetic media of the future for data storage recording densities beyond 1 Tb/in{sup 2}.

  17. Characterization of the plastic substrates, the reflective layers, the adhesives, and the grooves of today's archival-grade recordable DVDs

    SciTech Connect (OSTI)

    Jiang, Guilin; Rivera, Felipe; Kanyal, Supriya S.; Davis, Robert C.; Vanfleet, Richard; Lunt, Barry M.; Shutthanandan, V.; Linford, Matthew R.

    2011-01-01T23:59:59.000Z

    The plastic substrates, reflective layers, dyes, and adhesives of four archival-grade DVDs and one standard-grade recordable DVD were analyzed to determine their chemical compositions and/or physical dimensions. Chemical analyses by ATR-FTIR, ToF-SIMS, XPS, EDX/STEM, and RBS show that all these DVDs use very similar polycarbonate plastic substrates and acrylate-based adhesives, but different reflective layers and dye write layers. In addition, physical measurements by AFM show differences in the DVD groove depth, width, and other dimensions. These chemical and physical analyses may help explain variations in DVD lifetimes and facilitate development of the next generation of archival-grade DVDs.

  18. Resistance spot welding of ultra-fine grained steel sheets produced by constrained groove pressing: Optimization and characterization

    SciTech Connect (OSTI)

    Khodabakhshi, F.; Kazeminezhad, M., E-mail: mkazemi@sharif.edu; Kokabi, A.H.

    2012-07-15T23:59:59.000Z

    Constrained groove pressing as a severe plastic deformation method is utilized to produce ultra-fine grained low carbon steel sheets. The ultra-fine grained sheets are joined via resistance spot welding process and the characteristics of spot welds are investigated. Resistance spot welding process is optimized for welding of the sheets with different severe deformations and their results are compared with those of as-received samples. The effects of failure mode and expulsion on the performance of ultra-fine grained sheet spot welds have been investigated in the present paper and the welding current and time of resistance spot welding process according to these subjects are optimized. Failure mode and failure load obtained in tensile-shear test, microhardness, X-ray diffraction, transmission electron microscope and scanning electron microscope images have been used to describe the performance of spot welds. The region between interfacial to pullout mode transition and expulsion limit is defined as the optimum welding condition. The results show that optimum welding parameters (welding current and welding time) for ultra-fine grained sheets are shifted to lower values with respect to those for as-received specimens. In ultra-fine grained sheets, one new region is formed named recrystallized zone in addition to fusion zone, heat affected zone and base metal. It is shown that microstructures of different zones in ultra-fine grained sheets are finer than those of as-received sheets. - Highlights: Black-Right-Pointing-Pointer Resistance spot welding process is optimized for joining of UFG steel sheets. Black-Right-Pointing-Pointer Optimum welding current and time are decreased with increasing the CGP pass number. Black-Right-Pointing-Pointer Microhardness at BM, HAZ, FZ and recrystallized zone is enhanced due to CGP.

  19. Topological evolution and photoluminescent properties of a series of divalent zinc-based metal–organic frameworks tuned via ancillary ligating spacers

    SciTech Connect (OSTI)

    Lian, Xiao-Min; Zhao, Wen [Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062 (China); Zhao, Xiao-Li, E-mail: xlzhao@chem.ecnu.edu.cn [Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062 (China)

    2013-04-15T23:59:59.000Z

    The combination of divalent zinc ions, 4-(4-carboxybenzamido)benzoic acid and exo-bidendate bipyridine ligands gave rise to a series of new MOFs: [ZnL(bipy)]·DMF·H{sub 2}O (1), [ZnL(bpe)]·1.5H{sub 2}O (2), [ZnL(bpa)]·4H{sub 2}O (3) and [ZnL(bpp)]·1.75H{sub 2}O (4) (MOF=metal-organic framework, bipy=4,4?-bipyridine, bpe=trans-1,2-bis(4-pyridyl)ethylene, bpa=1,2-bis(4-pyridinyl)ethane, bpp=1,3-bis(4-pyridinyl)propane, H{sub 2}L=4,4?-(carbonylimino)dibenzoic acid). Fine tune over the topology of the MOFs was achieved via systematically varying the geometric length of the second ligating bipyridine ligands. Single-crystal X-ray analysis reveals that complex 1 has a triply interpenetrated three-dimensional (3D) framework with elongated primitive cubic topology, whereas isostructural complexes 2 and 3 each possesses a 6-fold interpenetrated diamondiod 3D framework. Further expansion of the length of the bipyridine ligand to bpp leads to the formation of 4, which features an interesting entangled architecture of 2D?3D parallel polycatenation. In addition, the thermogravimetric analyses and solid-state photoluminescent properties of the selected complexes are investigated. - Graphical abstract: The incorporation of exo-bidendate bipyridine spacers into the Zn–H{sub 2}L system has yielded a series of new MOFs exhibiting topological evolution from 3-fold interpenetration to 6-fold interpenetration and 2D?3D parallel polycatenation. Highlights: ? The effect of the pyridyl-based spacers on the formation of MOFs was explored. ? Fine tune over the topology of the MOFs was achieved. ? An interesting structure of 2D?3D parallel polycatenation is reported.

  20. A Language of Rebuilt Reality: The Photography of Robert Cumming in the 1970s

    E-Print Network [OSTI]

    Williams, Sarah Bay

    2012-01-01T23:59:59.000Z

    Museum of Contemporary Art, 1996. Wegman, William. “Wegman | Works,” n.d. http://www.wegmanworld.com/gallery/65 William Wegman, still from Spelling Lesson, 1973–1974,

  1. A Language of Rebuilt Reality: The Photography of Robert Cumming in the 1970s

    E-Print Network [OSTI]

    Williams, Sarah Bay

    2012-01-01T23:59:59.000Z

    print, from the portfolio Tulsa, 1970, printed 1980; LACMA,created between 1968-1971, Tulsa. Clark, working just priorprint, from the portfolio Tulsa, 1970, printed 1980; LACMA,

  2. SPACE-R thermionic space nuclear power system: Design and technology demonstration. Task 1.5.6, Moderator containment laboratory experiment test plant (CDRL No. 5)

    SciTech Connect (OSTI)

    Not Available

    1993-10-01T23:59:59.000Z

    The preferred moderator being considered for SPACE-R is yttrium hydride encased in beryllium tubes. The baseline beryllium performs a dual function as it acts as a moderator and provides containment for hydrogen. The permeation rate of hydrogen from the hydride through the beryllium shell at the operating temperature is an important factor for the functionality and reliability of the Be-YHx moderator. Hydrogen containment capability of beryllium is comparable to enamel which was used in SNAP and Topaz II reactors. However, limited experimental data base exists for the hydrogen permeation through fabricated beryllium enclosures at high temperature. Permeation of hydrogen in beryllium is strongly affected by surface conditions, thickness of surface oxide, surface and bulk traps, impurity content and microstructure. The objective of this experiment is to determine the permeation rate of hydrogen from yttrium hydride and zirconium hydride through beryllium in the temperature range of 773 K--973 K. In addition, Topaz II type zirconium hydride specimens with and without the proprietary oxide coating canned in stainless steel will be tested to measure the hydrogen permeation rate. The TSET SS-canned ZrHx samples currently at Phillips Laboratory will be used for the latter test with Phillips Laboratory participation at the SPI hydrogen leak test stand. A key technology demonstration of the effectiveness of transferred arc plasma spraying of a 1 mil Molybdenum coating on the Be cladding will be performed. The effectiveness of the Molybdenum coating in preventing any interaction of Be with Stainless Steel in NaK will be assessed and demonstrated.

  3. C:\Temp_jhd\spacers\spacers_or_2014.prn

    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 Office511041clothAdvanced Materials Advanced. C o w l i t z C o . C l a r k C o . C l a r24 TITLE 5-GOVERNMENT

  4. C:\Temp_jhd\spacers\spacers_wa_2014.prn

    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 Office511041clothAdvanced Materials Advanced. C o w l i t z C o . C l a r k C o . C l a r24 TITLE 5-GOVERNMENTI

  5. Influence of biphenyl spacer appended to the flexible phosphonate arms in modulating the dimensionality of the coordination polymers: Synthesis, structural chemistry and magnetic properties

    SciTech Connect (OSTI)

    Tripuramallu, Bharat Kumar [School of Chemistry, University of Hyderabad, New Chemistry Building, Hyderabad 500046 (India); Das, Samar K., E-mail: skdsc@uohyd.ernet.in [School of Chemistry, University of Hyderabad, New Chemistry Building, Hyderabad 500046 (India)

    2013-01-15T23:59:59.000Z

    Two new compounds [Co (2,2 Prime -bipy) (H{sub 2}dbp)]{sub n} (1) and [Ni (2,2 Prime -bipy){sub 2}(H{sub 2}dbp)(H{sub 2}O)]{center_dot}H{sub 2}O (2) based on the flexible ligand 4,4 Prime -dimethylenebiphenyldiphosphonic acid (H{sub 4}dbp) with 2,2 Prime -bipyridine as secondary ligand have been synthesized under hydrothermal conditions. Both the compounds are well characterized by routine elemental analysis, IR, electronic spectroscopies, thermogravimetric analysis and finally by single crystal X-ray diffraction analysis. Compound 1 is a 1D extended coordination polymer and 2 is a discrete molecular compound. A comparative study between the geometries of H{sub 4}dbp ligand (in compounds 1 and 2, present study) and p-xylylenediphosphonic acid (H{sub 4}pxp) ligand (in previously reported compounds [Cu(2,2 Prime -bipy)(H{sub 2}pxp)]{center_dot}nH{sub 2}O (1A) and Ni(2,2 Prime -bipy){sub 2}H{sub 4}pxp]{sub n}[H{sub 2}pxp]{sub n} (2A), see text) demonstrate the effect of the twisting in the benzene rings in changing higher dimensional H{sub x}pxp (x refers to number of protonated hydroxyl groups) compounds to lower dimensional H{sub x}dbp compounds. The eight membered Co-dimer rings formed in compound 1 represents the simple and isolated Co-dimer, exhibiting weak antiferromagnetic exchange between metal centers through OPO bridges. - Graphical abstract: Two new compounds based on the dimethylenebiphenyldiphosphonic acid have been synthesized. The effect of twisting of benzene rings in the biphenyl spacer containing multidentate ligands alters dimensionality of final compounds. Highlights: Black-Right-Pointing-Pointer Cobalt containing coordination polymer and a nickel discrete compound have been synthesized. Black-Right-Pointing-Pointer Flexible ligand 4,4'-dimethylenebiphenyldiphosphonic acid has been employed. Black-Right-Pointing-Pointer Co(II) and Ni(II) ions are square pyramidal and octahedral respectively. Black-Right-Pointing-Pointer The effect of the twisting in the benzene rings in the associated ligand has been demonstrated.

  6. Toward Artificial Developmental Regulators Hans-Dieter Arndt, Karl E. Hauschild, David P. Sullivan, Kara Lake, Peter B. Dervan,*, and

    E-Print Network [OSTI]

    Dervan, Peter B.

    . Further inspection of the Ubx-Exd-DNA crystal structure5 revealed that the minor groove dimensions next) or a mutant (3) hexapeptide attached to the PA-propylamine side chain via a glycine spacer. The conjugates

  7. Grooves in scratch testing Witold Brostowa)

    E-Print Network [OSTI]

    North Texas, University of

    ) Department of Sciences, Holon Institute of Technology, 58102 Holon, Israel Yakov Soifer Department of Sciences, Holon Institute of Technology, 58102 Holon, Israel; and Department of Physical Electronics

  8. Salsa's moves and salsa's grooves in Mexico City

    E-Print Network [OSTI]

    Baker, Christina

    2009-01-01T23:59:59.000Z

    University Press, 1995. Mexico Canclini, Nestor García. “Mexico: cultural globalization in a disintegrating city.Dancing” Mexicano: La danza en México. Cuarta parte. México:

  9. NUMERICAL SIM ULATION OF CONDENSATION ON A CAPILLARY GROOVED STRUCTURE

    E-Print Network [OSTI]

    Zhang, Yuwen

    vaporization in laser drilling processes [9, 10], solidi˘cation in continuous casting [11], and bubble growth

  10. Experimental study of a grooved squeeze film dampe

    E-Print Network [OSTI]

    Arauz, Grigory Luis

    1993-01-01T23:59:59.000Z

    agreement with the experimental results for all the damper configurations tested and when no fluid cavitation occurs....

  11. apple stem grooving: Topics by E-print Network

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

    have collected a considerable amount of data relating to apple (Malus domestica Biggs, Alan R. 133 Crop Conditions Apple Diseases: What To Do? Environmental Sciences and...

  12. SEISMIC CAPACITY OF THREADED, BRAZED AND GROOVED PIPE JOINTS | Department

    Office of Environmental Management (EM)

    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 for4,645 3,625 1,006 492 742 33 1112011 Strategic2 OPAM615_CostNSAR -DepartmentRetailEnergySEA-04:SECURITY CORE FUNCTIONof

  13. Improved Grooving Tool for Tubing - Energy Innovation Portal

    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 footballHydrogenIT |HotImpact

  14. Seismic Capacity of Threaded, Brazed, and Grooved Pipe Joints

    Office of Environmental Management (EM)

    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 for4,645 3,625 1,006 492 742 33Frequently AskedEnergy SmallImplementingSecurity SymposiumSecuring theSecurity,SeismicSEISMIC

  15. annulus spacer mobility: Topics by E-print Network

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

    ja (more) Nousiainen, Sari 2013-01-01 92 Theoretical Mobility Analysis of Ion Mobility Spectrometry Physics Websites Summary: Results Theoretical Mobility Analysis of Ion...

  16. assembly spacer grid: Topics by E-print Network

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

    TECHNOLOGY, AND ENGINEERING 2 8 14 Dynamic Vision DARHT FULFILLS ITS DESTINY Solar Smart Grid in the Atomic 38 The Grid Economy CiteSeer Summary: This chapter identifies...

  17. The effect of spacer ribs on Ledinegg type flow instabilities

    SciTech Connect (OSTI)

    Coutts, D.A.

    1993-09-09T23:59:59.000Z

    An experimental program has been completed which evaluated the effect of a flow obstruction in a heated channel on the onset of flow instability (OBI). The test channel was rectangular (80 {times} 3 mm), heated on one surface, and equipped with view ports. Tests were conducted in a flow controlled mode at heat fluxes of 370 kW/M{sup 2}, and 610 kW/m{sup 2}. Direct comparisons were made between the demand curve minimum for the unobstructed channel and a channel equipped with a 2.07 mm wide rib that was parallel to the flow and in contact with the heated surface. Data at OFI is presented in the nondimensional terms Of Q{sub ratio} (ratio of heat flux applied to heat flux required to achieve saturated liquid conditions at the exit), and the local Stanton number at the channel exit for each channel arrangement. The Q{sub ratio} and Stanton number values for the unobstructed channel and the rib equipped channel are then compared to produce an estimate of the rib effect.

  18. artelon cmc spacer: Topics by E-print Network

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

    R3 this condition is equivalent to the treadmillsled characterization of helicoidal CMC surfaces given by O. Perdomo. Edelen, Nick 2011-01-01 313 An evaluation of the influence...

  19. A linear fluid inertia model for improved prediction of force coefficients in grooved squeeze film dampers and grooved oil seal rings

    E-Print Network [OSTI]

    Delgado-Marquez, Adolfo

    2009-05-15T23:59:59.000Z

    for cooling nuclear reactors. The analysis includes the case of pure whirling and whirling with rotation for increasing clearance ratios and Reynolds 6 numbers (Re * ). The results show that fluid inertia reaction forces dominate the viscous forces...

  20. THE GROOVE MORTAR, A REUABLE METHOD FOR TESTING THE FLAMEPROOFNESS OF CERTAIN EXPLOSIVES

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    explosives, such äs slurries and emulsions, is somewhat problematical. Taking into aecount the Polish and a summary of the results obtained so far. Explosives in French coal mines Under French regulations, explosives designed for use in Underground coal mines can be divided into three groups : - group l (in French

  1. Rotordynamic coefficients and leakage flow of parallel-grooved liquid-seals

    E-Print Network [OSTI]

    Kilgore, James Joseph

    1988-01-01T23:59:59.000Z

    versus AP and running speed for seals 1 and 2 s Measured and predicted Cq s x 1000 versus AP and running speed for seals 3 and 4 1 Measured and predicted Cg ' x 1000 versus DP and running speed for seals 5 and 6 1 Measured and predicted Cq ' x 1000... versus DP and running speed for seals 7 a. nd 8 1 Measured and predicted Cg s x 1000 versus AP and running speed for seal 9 t Typical speed dependency for experimental values of Cs ' x 1000 versus DP and running speed, shown for seal 2 Measured...

  2. anisotropically etched v-grooves: Topics by E-print Network

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

    to cube-octahedra to octa- hedra, we can create Yang, Peidong 7 High efficiency light emitting diode with anisotropically etched GaN-sapphire interface Materials Science Websites...

  3. Effect of grooves cut on the periphery of a circular hole in bars subjected to tension 

    E-Print Network [OSTI]

    Schmalz, Juan Ricardo

    1967-01-01T23:59:59.000Z

    iv LIST OF TABLES Table Data Obtained for Case. , A Data Obtained for Cases B Data Obtained for C"ses C Final Results 24 40 IIST OF FIGURES Figure D'mensions of Har and Hole Page 2. Hreakdown of Cases Assembly of the Mold 12 4. Pouring... the Plastic into the Mold . . . 13 Front Shape of the Triangular Cutting Tool e ~ ~ ~ ~ ~ t 17 Shape of the Radius of the Rectangular Cutting ool 7 ~ Rlements of the Setup The Test Setup 20 load'ng De~ice and. Model 21 10. No Load Photograph for Case A...

  4. Dimpled/grooved face on a fuel injection nozzle body for flame stabilization and related method

    DOE Patents [OSTI]

    Uhm, Jong Ho; Johnson, Thomas Edward; Kim, Kwanwoo; Zuo, Baifang

    2013-08-20T23:59:59.000Z

    A fuel injection head for a fuel nozzle used in a gas turbine combustor includes a substantially hollow body formed with an upstream end face, a downstream end face and a peripheral wall extending therebetween. A plurality of pre-mix tubes or passages extend axially through the hollow body with inlets at the upstream end face and outlets at the downstream end face. An exterior surface of the downstream end face is formed with three-dimensional surface features that increase a total surface area of the exterior surface as compared to a substantially flat, planar downstream end face.

  5. A comparison of theoretical and experimental rotordynamic coefficients for helically grooved annular gas seals

    E-Print Network [OSTI]

    Gansle, Anthony Joseph

    1993-01-01T23:59:59.000Z

    for aW' and C, &. 229 mm . Fig. 12 Direct stiffness, K, as a function of inlet circumferential velocity ratio for aE) and C, &. 305 mm Fig. 13 Direct stiffness, K, as a function of inlet circumferential velocity ratio for a=15 and C, E). 229 mm Fig.... 14 Direct stiffness, K, as a function of inlet circumferential velocity ratio for a=15' and C, &. 305 mm Fig. 15 Direct stiffness, K, as a function of inlet circumferential velocity ratio for et=30 and C, E). 229 mm Fig. 16 Direct stiffness, K...

  6. Fabrication of Thin Film V-Groove Inductors using Composite Magnetic Materials

    E-Print Network [OSTI]

    . Sullivan C. G. Levey K. Venkatachalam Found in IMAPS Advanced Technology Workshop (ATW) on Pas- sive

  7. A ray tracing investigation of light trapping due to grooves in solar cells

    E-Print Network [OSTI]

    Ruggiero, Christopher W

    2007-01-01T23:59:59.000Z

    The biggest problem the world faces today is finding a renewable energy source as fossil fuel reserves being depleted, and the ongoing burning of fossil fuels is destroying environments all over the world. Solar energy is ...

  8. 'Alienating the Groove': Defamiliarization as Compositional Resource in COUNTING (2012), for Large Ensemble and Solo Vocalists

    E-Print Network [OSTI]

    Meites, Noah

    2012-01-01T23:59:59.000Z

    2.1 Comparison of Louis Andriessen, On Jimmy Yancey, mm.1-12 (reduction), and Jimmy Yancey, “State Street Boogie”,111 Fig. 2.2 On Jimmy Yancey, mm. 29-40, divergence from “

  9. Quantum Chemical Calculations of the Influence of Anchor-Cum-Spacer Groups on Femtosecond Electron

    E-Print Network [OSTI]

    Goddard III, William A.

    Transfer Times in Dye-Sensitized Semiconductor Nanocrystals P. Persson,*,, M. J. Lundqvist, R. Ernstorfer-sensitized semiconductor nanocrystals, consisting of perylene (Pe) chromophores attached to 2 nm TiO2 nanocrystals via bridges and about 35 fs with the saturated propionic acid bridge. The calculated electron injection times

  10. CFD Analysis of Nuclear Fuel Bundles and Spacer Grids for PWR Reactors

    E-Print Network [OSTI]

    Capone, Luigi

    2012-10-19T23:59:59.000Z

    The analysis of the turbulent flows in nuclear fuel bundles is a very interesting task to optimize the efficiency of modern nuclear power plants. The proposed study utilizes Computational Fluid Dynamics (CFD) to characterize the flow pattern...

  11. antibiotic-loaded hip spacers: Topics by E-print Network

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

    the age of the child. Newborns present with hip instability, infants have limited hip abduction on examination, and older children and Shahryar Noordin; Masood Umer; Kamran Hafeez;...

  12. CFD Analysis of Nuclear Fuel Bundles and Spacer Grids for PWR Reactors 

    E-Print Network [OSTI]

    Capone, Luigi

    2012-10-19T23:59:59.000Z

    The analysis of the turbulent flows in nuclear fuel bundles is a very interesting task to optimize the efficiency of modern nuclear power plants. The proposed study utilizes Computational Fluid Dynamics (CFD) to characterize the flow pattern...

  13. Controllable 0 ? ? transition in iron pnictide superconductor junctions with a spacer of strong ferromagnet

    SciTech Connect (OSTI)

    Liu, S. Y.; Tao, Y. C., E-mail: yctao88@163.com; Ji, T. T.; Di, Y. S. [Department of Physics and Institute of Theoretical Physics, Nanjing Normal University, Nanjing 210023 (China); Hu, J. G. [Department of Physics, Yangzhou University, Yangzhou 225002 (China)

    2014-03-17T23:59:59.000Z

    We investigate the control of 0?? transition in Josephson junctions consisting of a highly spin-polarized ferromagnet coupled to two iron pnictide superconductors (SCs). It is shown that, a 0?? transition as a function of interband coupling strength is always exhibited, which can be experimentally used to discriminate the s{sub ±}-wave pairing symmetry in the iron pnictide SCs from the s{sub ++}-wave one in MgB{sub 2}. By tuning the doping level in the s{sub ±}-wave SCs, one can vary the interband coupling strength so as to obtain the controllable 0?? transition. This device may be realized with current technologies and has practical use in Cooper pair spintronics and quantum information.

  14. Window Spacers and Edge Seals in Insulating Glass Units: A State-of-the-Art

    E-Print Network [OSTI]

    carbon dioxide (CO2) emissions in buildings is by increasing the thermal performance of their envelopes. Gustavsen Norwegian University of Science and Technology Windows and Envelope Materials Group Building), Windows & Envelope Materials Group, Berkeley, CA 94720- 8134, USA Abstract Insulating glass (IG) units

  15. POPULATION BIOLOGY/GENETICS Mitochondrial and Ribosomal Internal Transcribed Spacer 1 Diversity

    E-Print Network [OSTI]

    Szalanski, Allen L.

    of Cimex lectularius (Hemiptera: Cimicidae) ALLEN L. SZALANSKI,1,2 JAMES W. AUSTIN,3 JACKIE A. MCKERN,1 C, Cimex lectularius L. (Hemiptera: Cimicidae), is widespread hematophagus insect pest around the world, genetic variation, mitochondrial DNA The bed bug, Cimex lectularius L. (Hemiptera: Cimi- cidae

  16. antibiotic-loaded cement spacers: Topics by E-print Network

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

    early stage hydration of different classes of oilwell cement Bentz, Dale P. 104 NISTIR 7232 CEMHYD3D: A Three-Dimensional Cement Hydration Engineering Websites Summary: NISTIR...

  17. Microsoft Word - CX-SpacerInsulatorRepProgram3rd4thQtr2013_WEB...

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

    July 15, 2013 REPLY TO ATTN OF: KEP-4 SUBJECT: Environmental Clearance Memorandum Frank Weintraub Project Manager - TEP-TPP-1 Corinn Castro Program Manager - TPO-TPP-3 Proposed...

  18. Group-III nitride based high electron mobility transistor (HEMT) with barrier/spacer layer

    DOE Patents [OSTI]

    Chavarkar, Prashant; Smorchkova, Ioulia P.; Keller, Stacia; Mishra, Umesh; Walukiewicz, Wladyslaw; Wu, Yifeng

    2005-02-01T23:59:59.000Z

    A Group III nitride based high electron mobility transistors (HEMT) is disclosed that provides improved high frequency performance. One embodiment of the HEMT comprises a GaN buffer layer, with an Al.sub.y Ga.sub.1-y N (y=1 or y 1) layer on the GaN buffer layer. An Al.sub.x Ga.sub.1-x N (0.ltoreq.x.ltoreq.0.5) barrier layer on to the Al.sub.y Ga.sub.1-y N layer, opposite the GaN buffer layer, Al.sub.y Ga.sub.1-y N layer having a higher Al concentration than that of the Al.sub.x Ga.sub.1-x N barrier layer. A preferred Al.sub.y Ga.sub.1-y N layer has y=1 or y.about.1 and a preferred Al.sub.x Ga.sub.1-x N barrier layer has 0.ltoreq.x.ltoreq.0.5. A 2DEG forms at the interface between the GaN buffer layer and the Al.sub.y Ga.sub.1-y N layer. Respective source, drain and gate contacts are formed on the Al.sub.x Ga.sub.1-x N barrier layer. The HEMT can also comprising a substrate adjacent to the buffer layer, opposite the Al.sub.y Ga.sub.1-y N layer and a nucleation layer between the Al.sub.x Ga.sub.1-x N buffer layer and the substrate.

  19. Quantitative analysis of genetic expression responses to dynamic microenvironmental perturbation

    E-Print Network [OSTI]

    Pang, Wyming Lee

    2007-01-01T23:59:59.000Z

    blank spacer panel, vertical % all other objects dimensionsblank spacer panel, vertical % all other objects dimensions

  20. Cavitation regime detection through Proper Orthogonal Decomposition: dynamics analysis of the sheet cavity on a grooved convergent-divergent nozzle

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Cavitation regime detection through Proper Orthogonal Decomposition: dynamics analysis of the sheet in turbines and propellers is responsible for many issues like erosion, noise and vibrations. This two). This method is applied to sequences of sheet cavity images, in order to identify the cavitation regimes (sheet

  1. Numerical Simulation of Squeeze Film Dampers and Study of the Effect of Central Groove on the Dynamic Pressure Distribution

    E-Print Network [OSTI]

    Boppa, Praneetha

    2012-10-19T23:59:59.000Z

    ................................................................................................... 19 6. RESULTS AND DISCUSSION .............................................................................. 22 6.1 Grid Independent Study……………………………………………………22 6.2 Comparison of CFD and Experimental Results …………………………..28... ...................................................................... 25 Figure 9: Pressure contour for 2880 X 45 ...................................................................... 25 Figure 10: Pressure contour for 2880 X 60 ...................................................................... 26 Figure 11...

  2. Static and dynamic characteristics for a two-axial-groove bearing and a pressure-dam bearing

    E-Print Network [OSTI]

    Al Jughaiman, Bader K.

    2009-06-02T23:59:59.000Z

    angle ? s Step angle ? Pad arc angle ? Rotor speed (rad/s) ? Excitation frequency (rad/s) ? n Rotor-bearing system natural frequency (rad/s) ? f Rotor whirling frequency (rad/s) ? h Horizontal preset of orthogonally displaced pressure...]...........................................................3 Fig. 3 Tilting pad bearing a) rocket pivot b) flexure pivot [5] ...........................................4 Fig. 4 Test rig main section..............................................................................................13 Fig. 5 Shaker...

  3. An experimental and computational leakage investigation of labyrinth seals with rub grooves of actual size and shape

    E-Print Network [OSTI]

    Ambrosia, Matthew Stanley

    2001-01-01T23:59:59.000Z

    the tooth tip clearance the deeper the flow path penetrated into the seal cavity. The experimental measurements show that the tooth tip axial position, as well as the minimum-tooth clearance, affect the leakage. A significant improvement in leakage...

  4. 3325J.Am. Chem. SOC.1995,117, 3325-3332 Recognition in the Minor Groove of DNA at

    E-Print Network [OSTI]

    Mrksich, Milan

    Synthesis, Califomia Institute of Technology, Pasadena, Califomia 91125 Received November 28, 1994@ Abstract:The tripeptide ImPImP containing alternating imidazole and pyrrole carboxamides specifically binds the designated

  5. 9892 J. Am. Chem. SOC.1993, 115, 9892-9899 Enhanced Sequence Specific Recognition in the Minor Groove

    E-Print Network [OSTI]

    Mrksich, Milan

    and Peter B. Dervan' Contributionfrom the Arnold and Mabel Beckman Laboratories of Chemical Synthesis linked dimers of 2-PyN have been synthesized wherein the nitrogens of the central pyrroles are connected

  6. Nano-second UV laser processed micro-grooves on Ti6Al4V for biomedical applications

    E-Print Network [OSTI]

    Arnold, Craig B.

    .O. Soboyejo b,c, a Center for Energy Research & Development, Obafemi Awolowo University, Nigeria b Princeton

  7. Window Spacers and Edge Seals in Insulating Glass Units: A State-of-the-Art Review and Future Perspectives

    SciTech Connect (OSTI)

    SINTEF Building and Infrastructure; Norwegian University of Science and Technology (NTNU); Bergh, Sofie Van Den; Hart, Robert; Jelle, Bjrn Petter; Gustavsen, Arild

    2013-01-31T23:59:59.000Z

    Insulating glass (IG) units typically consist of multiple glass panes that are sealed and held together structurally along their perimeters. This report describes a study of edge seals in IG units. First, we summarize the components, requirements, and desired properties of edge construction in IG units, based on a survey of the available literature. Second, we review commercially available window edge seals and describe their properties, to provide an easily accessible reference for research and commercial purposes. Finally, based on the literature survey and review of current commercial edge seal systems, we identify research opportunities for future edge seal improvements and solutions.

  8. The second internal transcribed spacer of nuclear ribosomal DNA as a tool for Latin American anopheline taxonomy: a critical review

    E-Print Network [OSTI]

    Marrelli, Mauro Toledo; Sallum, Maria Anice Mureb; Marinotti, Osvaldo

    2006-01-01T23:59:59.000Z

    for Neotropical Anopheles taxonomy • Mauro Toledo Marrelliimprovement of mosquito taxonomy, and thus, A. albitarsis (used for mosquito taxonomy, the ITS2 of the ribosomal DNA

  9. Novel Use of Water Soluble "Aquapour" As A Temporary Spacer During Coil Winding For The NSTX-U Centerstack

    SciTech Connect (OSTI)

    Mardenfeld, Michael

    2013-07-01T23:59:59.000Z

    A major facility upgrade to the National Spherical Torus eXperiment (NSTX-U) is currently underway at Princeton Plasma Physics Laboratory (PPPL). A key component of NSTX-U is the fabrication of a new, higher field centerstack (CS). In order to simultaneously provide robust joints between the inner and outer legs of the Toroidal Field Coils (TF) and minimize radial build, the NSTX-U CS design requires that the Ohmic Heating solenoid (OH) be wound directly on the inner TF bundle. To protect the OH against thermal expansion stress during scenarios where the inner TF bundle is hot but the OH is relatively cool, the completed CS will have a 0.100 inch annular gap between the outer diameter of the TF bundle and the inner diameter of the OH solenoid. "Aquapour", a proprietary material produced by the Advanced Ceramics Manufacturing Company will be used during manufacture to produce this gap. After the TF bundle is vacuum pressure impregnated and cured, a cylindrical "clam shell" mold will be assembled around it, and a slurry of powdered Aquapour and water will be pumped into the annular space between the mold and TF bundle. Subsequent baking will turn the Aquapour solid, and a protective layer of wet lay-up fiberglass and resin will be added. The OH solenoid will be wound directly on this wet lay-up shell. After vacuum pressure impregnation of the OH, the water soluble Aquapour will be washed away, leaving the required radial clearance between the TF and OH. This paper will describe prototyping and testing of this process, and plans for use on the actual CS fabrication.

  10. Window Spacers and Edge Seals in Insulating Glass Units: A State-of-the-Art Review and Future Perspectives

    E-Print Network [OSTI]

    Bergh, Sofie Van Den

    2014-01-01T23:59:59.000Z

    Uvslokk, A. Gustavsen, Vacuum insulation panels for buildingThis excludes vacuum insulation panels (VIPs), which, whenmW/(mK) [50], and vacuum insulation panels (VIPs) with ? as

  11. Microsoft Word - CX-SpacerInsulatorRepProg1st2ndQtr2013_WEB.doc

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

    11, 2013 REPLY TO ATTN OF: KEP-4 SUBJECT: Environmental Clearance Memorandum Frank Weintraub Corinn Castro Project Manager - TEP-TPP-1 Program Manager - TPO-TPP-3 Proposed Action:...

  12. Development of fast cooling pulsed magnets at the Wuhan National High Magnetic Field Center

    SciTech Connect (OSTI)

    Peng, Tao; Sun, Quqin; Zhao, Jianlong; Jiang, Fan; Li, Liang; Xu, Qiang [Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan (China)] [Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan (China); Herlach, Fritz [Department of Physics, Katholieke Universiteit Leuven, Celestijnenlaan 200D, B-3001 Leuven (Belgium)] [Department of Physics, Katholieke Universiteit Leuven, Celestijnenlaan 200D, B-3001 Leuven (Belgium)

    2013-12-15T23:59:59.000Z

    Pulsed magnets with fast cooling channels have been developed at the Wuhan National High Magnetic Field Center. Between the inner and outer sections of a coil wound with a continuous length of CuNb wire, G10 rods with cross section 4 mm × 5 mm were inserted as spacers around the entire circumference, parallel to the coil axis. The free space between adjacent rods is 6 mm. The liquid nitrogen flows freely in the channels between these rods, and in the direction perpendicular to the rods through grooves provided in the rods. For a typical 60 T pulsed magnetic field with pulse duration of 40 ms, the cooling time between subsequent pulses is reduced from 160 min to 35 min. Subsequently, the same technology was applied to a 50 T magnet with 300 ms pulse duration. The cooling time of this magnet was reduced from 480 min to 65 min.

  13. Data:E8e3f8c1-7f75-4c78-9c08-65f6fd948835 | Open Energy Information

    Open Energy Info (EERE)

    rate is applicable for service that is supplied through new or rebuilt streetlight systems, including extension of streetlighting systems to additional locations where service...

  14. Data:F17767f9-11d6-4d89-9053-fbef796c6a3f | Open Energy Information

    Open Energy Info (EERE)

    rate is applicable for service that is supplied through new or rebuilt streetlight systems, including extension of streetlighting systems to additional locations where service...

  15. Data:D58f0853-7019-4884-8b17-f6751c0282cb | Open Energy Information

    Open Energy Info (EERE)

    rate is applicable for service that is supplied through new or rebuilt streetlight systems, including extension of streetlighting systems to additional locations where service...

  16. Data:E1b455d6-db25-487f-8874-c0e529c56488 | Open Energy Information

    Open Energy Info (EERE)

    rate is applicable for service that is supplied through new or rebuilt streetlight systems, including extension of streetlighting systems to additional locations where service...

  17. Data:3725ffb9-afbf-41cd-8bd0-bb5bddbaf309 | Open Energy Information

    Open Energy Info (EERE)

    rate is applicable for service that is supplied through new or rebuilt streetlight systems, including extension of streetlighting systems to additional locations where service...

  18. Data:4cf65e73-3ea7-4dff-a563-a52fb0797cbb | Open Energy Information

    Open Energy Info (EERE)

    rate is applicable for service that is supplied through new or rebuilt streetlight systems, including extension of streetlighting systems to additional locations where service...

  19. Data:1a0acf67-ae9b-4fbb-8eec-b73d24f77656 | Open Energy Information

    Open Energy Info (EERE)

    rate is applicable for service that is supplied through new or rebuilt streetlight systems, including extension of streetlighting systems to additional locations where service...

  20. Data:Fc611fcc-54c0-4b3c-a448-6de411677d32 | Open Energy Information

    Open Energy Info (EERE)

    rate is applicable for service that is supplied through new or rebuilt streetlight systems, including extension of streetlighting systems to additional locations where service...

  1. Data:Df99e157-6b86-435b-9086-fbc6f336c097 | Open Energy Information

    Open Energy Info (EERE)

    rate is applicable for service that is supplied through new or rebuilt streetlight systems, including extension of streetlighting systems to additional locations where service...

  2. Data:E8a11086-2661-4edd-acab-1ff02d3c7003 | Open Energy Information

    Open Energy Info (EERE)

    rate is applicable for service that is supplied through new or rebuilt streetlight systems, including extension of streetlighting systems to additional locations where service...

  3. Data:52ac41f5-b67c-4a38-b9be-649cb9eee620 | Open Energy Information

    Open Energy Info (EERE)

    rate is applicable for service that is supplied through new or rebuilt streetlight systems, including extension of streetlighting systems to additional locations where service...

  4. Data:5cbae07c-1d28-4b0d-aa5f-b62b5f3cdde8 | Open Energy Information

    Open Energy Info (EERE)

    rate is applicable for service that is supplied through new or rebuilt streetlight systems, including extension of streetlighting systems to additional locations where service...

  5. Data:5f37e06a-77e0-4fe1-95d8-a4cc24198d08 | Open Energy Information

    Open Energy Info (EERE)

    rate is applicable for service that is supplied through new or rebuilt streetlight systems, including extension of streetlighting systems to additional locations where service...

  6. Data:5fb276c4-1eb0-46bb-a17a-e2468acd697a | Open Energy Information

    Open Energy Info (EERE)

    rate is applicable for service that is supplied through new or rebuilt streetlight systems, including extension of streetlighting systems to additional locations where service...

  7. Data:0e9ca82e-b3a7-42c6-912b-4242c28a69cd | Open Energy Information

    Open Energy Info (EERE)

    rate is applicable for service that is supplied through new or rebuilt streetlight systems, including extension of streetlighting systems to additional locations where service...

  8. Rebuilding It Better: Greensburg, Kansas. City Hall (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2010-04-01T23:59:59.000Z

    This document showcases the LEED-Platinum designed Greensburg City Hall, which was rebuilt green, after a massive tornado destroyed Greensburg, Kansas in May 2007.

  9. argentinean dairy farms: Topics by E-print Network

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

    University - TxSpace Summary: W) countercurrent fixed bed gasifier was rebuilt to perform gasification studies under quasisteady state conditions using dairy biomass (DB) as...

  10. algerian dairy product: Topics by E-print Network

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

    University - TxSpace Summary: W) countercurrent fixed bed gasifier was rebuilt to perform gasification studies under quasisteady state conditions using dairy biomass (DB) as...

  11. accidential dairy farm: Topics by E-print Network

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

    University - TxSpace Summary: W) countercurrent fixed bed gasifier was rebuilt to perform gasification studies under quasisteady state conditions using dairy biomass (DB) as...

  12. Environmental and cultural sustainability In the built environment : an evaluation of LEED for historic preservation

    E-Print Network [OSTI]

    Ferriss, Lori (Lori E.)

    2010-01-01T23:59:59.000Z

    Preservation of buildings is an important process for both cultural and environmental sustainability. Buildings are frequently demolished and rebuilt long before necessitated by structural or material deterioration, wasting ...

  13. Compact vacuum insulation

    DOE Patents [OSTI]

    Benson, D.K.; Potter, T.F.

    1992-10-27T23:59:59.000Z

    Improved compact insulation panel is provided which is comprised of two adjacent metal sheets spaced close together with a plurality of spherical, or other discretely shaped, glass or ceramic beads optimally positioned between the sheets to provide support and maintain the spacing between the metal sheets when the gases there between are evacuated to form a vacuum. These spherical glass beads provide the maximum support while minimizing thermal conductance. In its preferred embodiment; these two metal sheets are textured with ribs or concave protrusions in conjunction with the glass beads to maximize the structural integrity of the panels while increasing the spacing between beads, thereby reducing the number of beads and the number of thermal conduction paths. Glass or porcelain-enameled liners in combination with the glass spacers and metal sidewalls effectively decrease thermal conductivity, and various laminates, including wood, porcelain-enameled metal, and others effectively increase the strength and insulation capabilities of the panels. Also, a metal web is provided to hold the spacers in place, and strategic grooves are shown to accommodate expansion and contraction or shaping of the panels. 35 figs.

  14. Compact vacuum insulation

    DOE Patents [OSTI]

    Benson, David K. (Golden, CO); Potter, Thomas F. (Denver, CO)

    1992-01-01T23:59:59.000Z

    Improved compact insulation panel is provided which is comprised of two adjacent metal sheets spaced close together with a plurality of spherical, or other discretely shaped, glass or ceramic beads optimally positioned between the sheets to provide support and maintain the spacing between the metal sheets when the gases therebetween are evacuated to form a vacuum. These spherical glass beads provide the maximum support while minimizing thermal conductance. In its preferred embodiment; these two metal sheets are textured with ribs or concave protrusions in conjunction with the glass beads to maximize the structural integrity of the panels while increasing the spacing between beads, thereby reducing the number of beads and the number of thermal conduction paths. Glass or porcelain-enameled liners in combination with the glass spacers and metal sidewalls effectively decrease thermal conductivity, and variious laminates, including wood, porcelain-enameled metal, and others effectively increase the strength and insulation capabilities of the panels. Also, a metal web is provided to hold the spacers in place, and strategic grooves are shown to accommodate expansion and contraction or shaping of the panels.

  15. Stability of modulation transfer function calibration of surface profilometers using binary pseudo-random gratings and arrays with nonideal groove shapes

    SciTech Connect (OSTI)

    Barber, Samuel K.; Anderson, Erik H.; Cambie, Rossana; Marchesini, Stefano; McKinney, Wayne R.; Takacs, Peter Z.; Voronov, Dmitry L.; Yashchuk, Valeriy V.

    2010-03-31T23:59:59.000Z

    The major problem of measurement of a power spectral density (PSD) distribution of surface heights with surface profilometers arises due to the unknown Modulation Transfer Function (MTF) of the instruments, which tends to distort the PSD at higher spatial frequencies. The special mathematical properties of binary pseudo-random patterns make them an ideal basis for developing MTF calibration test surfaces. Two-dimensional binary pseudo-random arrays (BPRAs) have been fabricated and used for the MTF calibration of the MicroMap{trademark}-570 interferometric microscope with all available objectives. An investigation into the effects of fabrication imperfections on the quality of the MTF calibration and a procedure for accounting for such imperfections are presented.

  16. NMR Characterization of the Aliphatic / Pairing for Recognition of A,T/T,A Base Pairs in the Minor Groove of DNA

    E-Print Network [OSTI]

    Mrksich, Milan

    Laboratories of Chemical Synthesis, California Institute of Technology, Pasadena, California 91125 Recei been inserted to reset the register. Complexes of three pyrrole-imidazole polyamides of sequence

  17. Cycle Polyamide Motif for Recognition of the Minor Groove of DNA David M. Herman, James M. Turner, Eldon E. Baird, and Peter B. Dervan*

    E-Print Network [OSTI]

    Dervan, Peter B.

    relocates the cationic charge from the hairpin C terminus. Here we report the synthesis of pyrrole resin Abstract: Motifs for covalent linkage of side-by-side complexes of pyrrole-imidazole (Py-Im) polyamides aromatic amino acids 3-hydroxypyrrole (Hp), imidazole (Im), and pyrrole (Py) are synthetic ligands

  18. An investigation of the initial attachment and orientation of osteoblast-like cells on laser grooved Ti-6Al-4V surfaces

    E-Print Network [OSTI]

    Arnold, Craig B.

    for Energy Research, Obafemi Awolowo University, Ile-Ife, Nigeria a b s t r a c ta r t i c l e i n f o

  19. SPACE-R thermionic space nuclear power system: Design and technology demonstration. Monthly report for 1 August 1994--1 September 1994

    SciTech Connect (OSTI)

    Not Available

    1994-10-01T23:59:59.000Z

    The objective of this program is to design, develop, demonstrate, and advance the technology for thermionic space nuclear power system (TI-SNPS) to meet key functional requirements with reliable 5{approximately}40 kWe output and 18-month near-term/10-year long-term goals. A 40 kWe TI-SNPS point design will be prepared, and key technologies and critical components supporting that design will be validated. This program will produce an assessed design of a 40 kWe-EOL space nuclear power system. Phase 1 will provide for the performance of parametric trade studies and demonstration of key technologies, resulting in a preferred conceptual design for the TI-SNPS. The focus of the tasks is technology validation drive by the system design.

  20. Molecular Systematics of Apiaceae Subfamily Apioideae: Phylogenetic Analyses of Nuclear Ribosomal DNA Internal Transcribed Spacer and Plastid rpoC1 Intron

    E-Print Network [OSTI]

    Downie, Stephen R.

    Ramanath; Deborah S. Katz-Downie; Esmeralda Llanas American Journal of Botany, Vol. 85, No. 4. (Apr., 1998

  1. SPACE-R Thermionic Space Nuclear Power System: Design and Technology Demonstration Program. Semiannual technical progress report for period ending March 1993

    SciTech Connect (OSTI)

    Not Available

    1993-05-01T23:59:59.000Z

    This Semiannual Technical Progress Report summarizes the technical progress and accomplishments for the Thermionic Space Nuclear Power System (TI-SNPS) Design and Technology Demonstration Program of the Prime Contractor, Space Power Incorporated (SPI), its subcontractors and supporting National Laboratories during the first half of the Government Fiscal Year (GFY) 1993. SPI`s subcontractors and supporting National Laboratories include: Babcock & Wilcox for the reactor core and externals; Space Systems/Loral for the spacecraft integration; Thermocore for the radiator heat pipes and the heat exchanger; INERTEK of CIS for the TFE, core elements and nuclear tests; Argonne National Laboratories for nuclear safety, physics and control verification; and Oak Ridge National laboratories for materials testing. Parametric trade studies are near completion. However, technical input from INERTEK has yet to be provided to determine some of the baseline design configurations. The INERTEK subcontract is expected to be initiated soon. The Point Design task has been initiated. The thermionic fuel element (TFE) is undergoing several design iterations. The reactor core vessel analysis and design has also been started.

  2. Adv. SpaceRes. Vol. 20,No.415,pp.873-882, 1997 01997 COSPAR.Published by Elsevier Science Ltd. All rights reserved

    E-Print Network [OSTI]

    Lockwood, Mike

    solar wind-magnetosphere-ionosphere system. These observations have played a central role in inspiring a great step forward in knowledge of convection and encapsulated substantial relevant physics

  3. III-V Multigate Non-Planar Channel Transistor Simulations and Technologies

    E-Print Network [OSTI]

    Shih, Kun-Huan

    2012-01-01T23:59:59.000Z

    model. Table 3.1 Spacer and underlap dimensions of source/length. TABLE 3.1 SPACER AND UNDERLAP DIMENSIONS OF SOURCE/= 2 mA/ µ m (c) Spacer or underlap dimension (nm) Figure 3.3

  4. PowerPoint Presentation

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

    spacer- dampers for Mead-Phoenix. * Given projected decrease in costs of Mead transformers, no rate impact anticipated due to spacer damper project 12 Asset Management...

  5. Periodic magnetic fieldas a polarized and focusing thermal neutron spectrometer and monochromator

    E-Print Network [OSTI]

    2010-01-01T23:59:59.000Z

    B828?. The aluminum spacers had dimensions 12.7 ? 2.54? 12.7magnet pole dimension ?axial width? Aluminum spacer width

  6. Crash Analysis of Work Zone Lane Closures with Left-Hand Merge and Downstream Lane Shift

    E-Print Network [OSTI]

    See, Chen Fei

    2008-07-17T23:59:59.000Z

    The Arkansas State Highway and Transportation Department (AHTD) began the Interstate Rehabilitation Program (IRP) in the spring of 2000 that ultimately rebuilt approximately 380 miles, or 60% of Arkansas' 655-mile Interstate ...

  7. Shoreline assessment of Jefferson County, Texas 

    E-Print Network [OSTI]

    Lee, Hoo Il

    2004-09-30T23:59:59.000Z

    Shoreline erosion is an issue of economic and environmental concern on the Texas coast. Texas State Highway 87, located in Jefferson County, Texas, has been repeatedly destroyed by storms and rebuilt in the past 50 years. ...

  8. Dawdon Mine Water Heat Pump Trial

    E-Print Network [OSTI]

    Oak Ridge National Laboratory

    #12;System re-built Replacement heat exchanger Y-strainer filter installed Flow meter installed ­ strainer filter had to be cleared every couple of days (see photo) System finally failed again in April

  9. Microsoft Word - Naselle Tap Modification Loop to Driscoll Sub...

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

    Driscoll-Astoria No. 1; and Driscoll-Naselle No. 1. This line is being rebuilt to improve transmission system reliability in the Allston-Astoria area. The proposed project would...

  10. Preservation of limestone material culture with siloxanes

    E-Print Network [OSTI]

    Miller, Ann Elizabeth

    2001-01-01T23:59:59.000Z

    damaged areas were cut away and rebuilt in lime mortar with its constituents similar to the surrounding stonework (Marsh 1977). There is definite improvement to the overall appearance and stability of the Wells Cathedral after 20 years of conservation...

  11. Fenestration of Today and Tomorrow: A State-of-the-Art Review and Future Research Opportunities

    E-Print Network [OSTI]

    Petter Jelle, Bjorn

    2013-01-01T23:59:59.000Z

    Thermoplastic Spacer TPS ® Synthetic rubber www.adcocorp.comflexible stabiliser Synthetic rubber Thermal Conductivity (

  12. Grooving Down the Helix http://www.bnl.gov/bnlweb/pubaf/pr/PR_display.asp?prID=1038&template=Today[12/7/2009 9:39:49 AM

    E-Print Network [OSTI]

    Heller, Eric

    &H | Newsroom | Administration | Visitors | Directory search TODAY Archive BNL TODAY Links Brookhaven Home TODAY, NY -- A team of scientists from the U.S. Department of Energy's (DOE) Brookhaven National Laboratory to alter the behavior of DNA-binding proteins, which are responsible for replicating and repairing DNA

  13. acute pancreatitis accompanied: Topics by E-print Network

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

    Groove pancreatitis is a rare form of chronic pancreatitis, and to the best of our knowledge, our patient is the first case in the English literature of groove pancreatitis...

  14. On the Design of Traps for Feeding 3D Parts on Vibratory Tracks

    E-Print Network [OSTI]

    Utrecht, Universiteit

    a sequence of mechanical devices such as wiper blades, grooves and traps. Most of these devices are filters

  15. Trap Design for Vibratory Bowl Feeders Robert-Paul Berretty

    E-Print Network [OSTI]

    Utrecht, Universiteit

    devices such as wiper blades, grooves and traps. Most of these devices are filters Research is supported

  16. Blades: A New Class of Geometric Primitives for Feeding 3D Parts on Vibratory Tracks

    E-Print Network [OSTI]

    Goldberg, Ken

    of mechanical devices such as wiper blades, grooves and traps. Most of these devices are filters that serve

  17. Trap Design for Vibratory Bowl Feeders # RobertPaul Berretty +# Ken Goldberg Mark H. Overmars +

    E-Print Network [OSTI]

    Utrecht, Universiteit

    devices such as wiper blades, grooves and traps. Most of these devices are filters # Research is supported

  18. Fermilab Today

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

    30, 2013 spacer Subscribe | Contact Us | Archive | Classifieds | Guidelines | Help Search GO spacer Calendar Have a safe day Wednesday, Oct. 30 3:30 p.m. DIRECTOR'S COFFEE BREAK -...

  19. Protein and Cell Surface Engineering with Oxime Conjugates

    E-Print Network [OSTI]

    Hudak, Jason Edward

    2013-01-01T23:59:59.000Z

    a tetraethyleneglycol (TEG) spacer to an aminooxy moiety.comprising DIBAC tethered by a TEG spacer to an aminooxyto obtain protected aminooxy TEG linker 1.5 as a clear oil (

  20. EVLA Memo 172 The Modified J-Pole Antenna

    E-Print Network [OSTI]

    Groppi, Christopher

    by a clear polycarbonate spacer, shown in detail in Figure 2, as well as a balun unit, visible at the far the polycarbonate spacer. This loss could probably be reduced, but is of little concern as the corresponding

  1. Propagation characteristics of hybrid modes supported by metal-low-high index waveguides

    E-Print Network [OSTI]

    Mojahedi, Mohammad

    spacer have attracted much interest recently. Power is concentrated in the low index spacer region dimensions," Science 311(5758), 189­ 193 (2006). 5. J. A. Dionne, L. A. Sweatlock, H. A. Atwater, and A

  2. TermitesandWoodenware OCT DEC 2010

    E-Print Network [OSTI]

    Jawitz, James W.

    damage, but the salt will speed the corrosion of the nails, screws, queen exclud- ers, and frame spacers.Oil

  3. -Supporting Information-2 Patterned ion exchange membranes for improved power production in4

    E-Print Network [OSTI]

    of the mesh spacer. The value of Aspacer was45 calculated using the dimensions of the spacer (1.5 cm Ă? 3.5 cm-conductive spacer37 In the control reactors, non-conductive polyethylene mesh was used to maintain the38 inter-membrane distance as a spacer. The open area of the mesh was calculated as 70% by the39 wire diameter and opening

  4. CROSSED MOLECULAR BEAM STUDIES OF CHEMILUMINESCENT REACTIONS

    E-Print Network [OSTI]

    Kahler, Carol Cuzens

    2013-01-01T23:59:59.000Z

    dimensions Effusive - Quasi Effusive Source Diameter of Nozzle .015 inch (.038 em) Distance to collision zone (no skimmer or spacer) .

  5. Reduced-dimension transistors: Reduced-dimension transistors

    E-Print Network [OSTI]

    Pulfrey, David L.

    1 Reduced-dimension transistors: the HEMT LECTURE 20 · Reduced-dimension transistors · HEMT · 2-D;8 For a finite well · Wavefunction not completely confined · Use undoped spacer #12;9 Employment of a spacer scattering (µ ). · Electrons and donors separated no I I scattering, i.e., µ · Undoped spacer also helps

  6. Fixed Bed Countercurrent Low Temperature Gasification of Dairy Biomass and Coal-Dairy Biomass Blends Using Air-Steam as Oxidizer

    E-Print Network [OSTI]

    Gordillo Ariza, Gerardo

    2010-10-12T23:59:59.000Z

    W) countercurrent fixed bed gasifier was rebuilt to perform gasification studies under quasisteady state conditions using dairy biomass (DB) as feedstock and various air-steam mixtures as oxidizing sources. A DB-ash (from DB) blend and a DB-Wyoming coal blend were...

  7. Type-level module aliases: independent and equal

    E-Print Network [OSTI]

    Garrigue, Jacques

    . ­ Through nested structures, it allows for hierarchical design of libraries. ­ Sharing of types allows library) #12;Garrigue & White -- Type-level module aliases 9 The re-built hierarchy: SML/NJ ­ SML out of the specification. #12;Garrigue & White -- Type-level module aliases 10 A packed library

  8. parczoologiquedeparis.fr --1 --A new species of zoo

    E-Print Network [OSTI]

    de Vincennes on land belonging to Paris City Council. Built on approximately 15 hectares of Ecology, Sustainable Development and Energy. The Museum manages two other animal parks: the Ménagerie (zoo IN THE WORLD TO HAVE BEEN ENTIRELY REBUILT A MOSAIC OF DIFFERENT LANDSCAPES, STRIKING A BALANCE BETWEEN NATURE

  9. Reductions of NO2 Detected from Space During the1 2008 Beijing Olympic Games2

    E-Print Network [OSTI]

    Haak, Hein

    , construction19 activities, industry, and coal-fired power plants, is a major concern for local authorities.20 lines. Polluting industry was shut down temporarily (20 July) or rebuilt outside Beijing.31 Energy enforced strong measures to reduce air pollution during10 the events. To evaluate the direct effect

  10. Reductions of NO2 detected from space during the 2008 Beijing Olympic Games

    E-Print Network [OSTI]

    Boersma, Folkert

    pollution in Beijing, mainly originating from dense traffic, construction activities, industry, and coal with the introduction of new metro and bus lines. Polluting industry was shut down temporarily (20 July) or rebuilt (from 8 August to 17 September), local authorities enforced strong measures to reduce air pollution

  11. Final Report

    SciTech Connect (OSTI)

    Agosta, Charles C. [Clark University] [Clark University

    2013-06-14T23:59:59.000Z

    This grant resulted in three distinct scientific advances, the most important being the discovery of a inhomogeneous superconducting state first predicted over 40 years ago. Two graduate students received PhDs as a result of this grant, and a major US high magnetic field facility was rebuilt.

  12. Gearbox Reliability Collaborative: Gearbox Inspection Metadata

    SciTech Connect (OSTI)

    Munch, K.; McDade, M.

    2010-09-01T23:59:59.000Z

    NREL has developed a software application called GearFacts that will be distributed to Database Collaborative participants to capture failure information when gearboxes are rebuilt. This publication names and describes each field used in GearFacts and can be used as a reference to the software's design.

  13. EFFECT OF ENCROACHMENT OF WANAPUM DAM RESERVOIR ON FISH PASSAGE OVER ROCK ISLAND DAM, COLUMBIA RIVER

    E-Print Network [OSTI]

    EFFECT OF ENCROACHMENT OF WANAPUM DAM RESERVOIR ON FISH PASSAGE OVER ROCK ISLAND DAM, COLUMBIA the lower sections of the three fish ladders at Rock Island Dam, 61 km upstream from Wanapum Dam of the center and left-bank fish ladders of Rock Island Dam were rebuilt and a new sequence of spill patterns

  14. J.A. Jacko (Ed.): Human-Computer Interaction, Part II, HCII 2009, LNCS 5611, pp. 178187, 2009. Springer-Verlag Berlin Heidelberg 2009

    E-Print Network [OSTI]

    Kallmann, Marcelo

    }@ucmerced.edu Abstract. While interactive virtual humans are becoming widely used in educa- tion, training and delivery humans are mainly based on pre-defined animations which have to be re-built by skilled animators to enable a seamless interface for programming mo- tions by demonstration. Keywords: virtual humans, motion

  15. Socioeconomic Perspectives on Marine Fisheries in the United States

    E-Print Network [OSTI]

    and poor management are dissipating value in today's fisheries, costing tens of thousands of jobs, harming the economies of our coastal communities, and placing a valuable natural and cultural heritage at risk populations are rebuilt. Increasing annual catches to long-term sustainable levels could add at least $1

  16. PROCEEDINGS, TOUGH Symposium 2012 Lawrence Berkeley National Laboratory, Berkeley, California, September 17-19, 2012

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    data. Horizon surface is rebuilt, and fluvial sandstone-shale facies distribution is generated. Reservoir petrophysical properties are associated to each facies in agreement with the provided data conducted on a reservoir formation, while using the same database for site characterization. The S-3 site

  17. Ceramic blade attachment system

    DOE Patents [OSTI]

    Shaffer, J.E.

    1995-01-10T23:59:59.000Z

    A turbine blade having a preestablished rate of thermal expansion is attached to a turbine wheel having a preestablished rate of thermal expansion being greater than the preestablished rate of thermal expansion of the turbine blade. The turbine blade has a root portion having a first groove and a second groove therein. The turbine wheel includes a plurality of openings in which the turbine blade is positioned. Each of the openings has a first groove and a second groove therein. The space or void formed between the first grooves and the second grooves has a plurality of spherical balls positioned therein. The plurality of spherical balls has a preestablished rate of thermal expansion being equal to the preestablished rate of thermal expansion of the turbine blade. 4 figures.

  18. Ceramic blade attachment system

    DOE Patents [OSTI]

    Shaffer, James E. (Maitland, FL)

    1995-01-01T23:59:59.000Z

    A turbine blade having a preestablished rate of thermal expansion is attached to a turbine wheel having a preestablished rate of thermal expansion being greater than the preestablished rate of thermal expansion of the turbine blade. The turbine blade has a root portion having a first groove and a second groove therein. The turbine wheel includes a plurality of openings in which the turbine blade is positioned. Each of the openings has a first groove and a second groove therein. The space or void formed between the first grooves and the second grooves has a plurality of spherical balls positioned therein. The plurality of spherical balls has a preestablished rate of thermal expansion being equal to the preestablished rate of thermal expansion of the turbine blade.

  19. Removable, hermetically-sealing, filter attachment system for hostile environments

    DOE Patents [OSTI]

    Mayfield, Glenn L [Richland, WA

    1983-01-01T23:59:59.000Z

    A removable and reusable filter attachment system. A filter medium is fixed o, and surrounded by, a filter frame having a coaxial, longitudinally extending, annular rim. The rim engages an annular groove which surrounds the opening of a filter housing. The annular groove contains a fusible material and a heating mechanism for melting the fusible material. Upon resolidifying, the fusible material forms a hermetic bond with the rim and groove. Remelting allows detachment and replacement of the filter frame.

  20. 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...

  1. Measurement of surface tension and viscosity by open capillary techniques

    DOE Patents [OSTI]

    Rye,Robert R. (Albuquerque, NM), Yost,Frederick G. (Cedar Crest, NM)

    1998-01-01T23:59:59.000Z

    An open-channel capillary is provided, having preferably a v-shaped groove in a flat wettable surface. The groove has timing marks and a source marker in which the specimen to be tested is deposited. The time of passage between the timing marks is recorded, and the ratio of surface tension .gamma. to viscosity .mu. is determined from the equation given below: ##EQU1## where h.sub.0 is the groove depth, .alpha. is the groove angle, .theta. is the liquid/solid contact angle, and t is the flow time. It has been shown by the

  2. Energy efficient louver and blind. Technical progress report for Quarter 1, 1996

    SciTech Connect (OSTI)

    Khajavi, S.

    1996-04-19T23:59:59.000Z

    This report decribes designs for energy efficient louvers and blinds for windows. The design includes silver and aluminium coated v-grooves.

  3. Turbine airfoil with outer wall thickness indicators

    DOE Patents [OSTI]

    Marra, John J; James, Allister W; Merrill, Gary B

    2013-08-06T23:59:59.000Z

    A turbine airfoil usable in a turbine engine and including a depth indicator for determining outer wall blade thickness. The airfoil may include an outer wall having a plurality of grooves in the outer surface of the outer wall. The grooves may have a depth that represents a desired outer surface and wall thickness of the outer wall. The material forming an outer surface of the outer wall may be removed to be flush with an innermost point in each groove, thereby reducing the wall thickness and increasing efficiency. The plurality of grooves may be positioned in a radially outer region of the airfoil proximate to the tip.

  4. Fuel rail

    SciTech Connect (OSTI)

    Haigh, M.; Herbert, J.D.; O'Leary, J.J.

    1988-09-20T23:59:59.000Z

    This patent describes a fuel rail for a V-configuration automotive type internal combustion engine having a throttle body superimposed over an intake manifold. The throttle body has an air plenum above an induction channel aligned with a throttle bore passage in the manifold for flow or air to the engine cylinders. The rail includes a spacer body mounted sealingly between the throttle body and the manifold of the engine and having air induction passages therethrough to connect the throttle body channels and the manifold, the spacer body having at least on longitudinal bore defining a fuel passage extending through the spacer body, and a fuel injector receiving cups projecting from and communicating with the fuel passage. The spacer body consists of a number of separated spacer members, and rail member means through which the fuel passage runs joining the spacer members together.

  5. Test device for measuring permeability of a barrier material

    DOE Patents [OSTI]

    Reese, Matthew; Dameron, Arrelaine; Kempe, Michael

    2014-03-04T23:59:59.000Z

    A test device for measuring permeability of a barrier material. An exemplary device comprises a test card having a thin-film conductor-pattern formed thereon and an edge seal which seals the test card to the barrier material. Another exemplary embodiment is an electrical calcium test device comprising: a test card an impermeable spacer, an edge seal which seals the test card to the spacer and an edge seal which seals the spacer to the barrier material.

  6. CX-010164: Categorical Exclusion Determination | Department of...

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

    Administration proposes to replace worn spacers and insulators along various transmission lines throughout BPA's Service Area. CX-010164.pdf More Documents & Publications...

  7. Analysis of Assembly Bill 2185: Childhood Asthma Management

    E-Print Network [OSTI]

    California Health Benefits Review Program (CHBRP)

    2004-01-01T23:59:59.000Z

    air entering and leaving the lungs) testing by a physicianbe inhaled and deposited in the lungs. Spacer volumes andmedication delivery to the lungs compared with MDIs alone in

  8. NERSC/DOE BES Requirements Workshop Worksheet - Hai-Ping Cheng

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

    understand processes such as electron transfer, metal penetration through organic spacer, hydrogen dissociation on nano-cluster array, electronic, transport, and mechanical...

  9. Solar energy storage through the homogeneous electrocatalytic reduction of carbon dioxide : photoelectrochemical and photovoltaic approaches

    E-Print Network [OSTI]

    Sathrum, Aaron John

    2011-01-01T23:59:59.000Z

    electricity from photovoltaic cells to convert CO 2 intoSolar Energy Anode Photovoltaic Cell Cathode PP Mesh SpacerCoupling a Photovoltaic Solar Cell with a Homogeneous

  10. Magic Angle Spinning NMR Reveals Sequence-Dependent Structural...

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

    Magic Angle Spinning NMR Reveals Sequence-Dependent Structural Plasticity, Dynamics, and the Spacer Peptide 1 Conformation in Magic Angle Spinning NMR Reveals Sequence-Dependent...

  11. Microsoft Word - CX-McNary-Coyote Springs_WEB.doc

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

    May 26, 2010 REPLY TO ATTN OF: KEP-4 SUBJECT: Environmental Clearance Memorandum Corinn Castro Project Manager - TELM-TPP-3 Proposed Action: Replace spacer dampers along the...

  12. Microsoft Word - CX-Grizzly-CaptainJack_No1_WEB.doc

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

    21, 2010 REPLY TO ATTN OF: KEP-4 SUBJECT: Environmental Clearance Memorandum Corinn Castro Project Manager - TELM-TPP-3 Proposed Action: Replace spacer dampers along the Grizzly -...

  13. Microsoft Word - CX-Wautoma-Rock Creek_WEB.doc

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

    3, 2010 REPLY TO ATTN OF: KEP-4 SUBJECT: Environmental Clearance Memorandum Corinn Castro Project Manager - TELM-TPP-3 Proposed Action: Replace spacer dampers along the...

  14. Light trapping in thin silicon waveguides by plasmon mediated mode coupling

    E-Print Network [OSTI]

    Polman, Albert

    dimensions, the resonant behaviour of the wires can be tuned to optimize the transmittance. Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.5 Influence of spacer layer

  15. This article is from the May 2007 issue of

    E-Print Network [OSTI]

    Peever, Tobin

    ) can be distinguished based on chro- mosome number and conidial dimensions (20,58). Polymorphic polymerase chain reaction (PCR) alleles and internal tran- scribed spacer restriction fragment length

  16. Ecology 2007 2006 The Authors

    E-Print Network [OSTI]

    Rohr, Jason

    and realized niche, internal transcribed spacer, metacommunity, soil characteristics, competition, T-RFLP, Zea dimensions (Hutchinson 1957). Neutral theory, in contrast to niche theory, initially assumes that trophically

  17. SECTION A-A 23 2420 21 2218* 17

    E-Print Network [OSTI]

    Cline, Douglas

    -0.5 x 8mm LG SHCS SS M3-0.5 x 8mm LG SHCS 0.000 18 4 8 PC BOARD SPACER PC BOARD SPACER, 2.362 LG DELRIN-GUIDE DELRIN .25 x .88 x 3.00 0.01 21 4 8 PC BOARD SPACER PC BOARD SPACER, 2.526 LG DELRIN .31 DIA x 2.526 LG 0 DRAWING ! ± .005 [.13] ± .010 [.3] DIMENSIONS ARE IN: OTHERWISE SPECIFIED ARE X INCHES [mm] x.xxx [x.xx] x

  18. Readout of TPC Tracking Chambers with GEMs and Pixel Chip

    E-Print Network [OSTI]

    Kim, T.

    2008-01-01T23:59:59.000Z

    insulating spacers are of Lucite or G10. Dimensions are inspacers. This package was mounted inside a cylindrical stainless steel test vessel (TV) with approximate inside dimensions

  19. r XXXX American Chemical Society A dx.doi.org/10.1021/nl202066c |Nano Lett. XXXX, XXX, 000000 pubs.acs.org/NanoLett

    E-Print Network [OSTI]

    Finkelstein, Gleb

    bars, and H shapes with outer dimensions close to those of the DNA origami. Specifically, the seed by a short spacer sequence (T5) followed by a

  20. Stabilization and Enhancement of Sand-modified Root Zones for High Traffic Sports Turfs with Mesh Elements: A Randomly Oriented, Interlocking Mesh Inclusion system.

    E-Print Network [OSTI]

    Beard, James B.; Sifers, Samuel I.

    1993-01-01T23:59:59.000Z

    left): ? (a) Santa Anita horse race track in Arcadia, California, installed in 1989 . (b) Ewood Park soccer (football) field in Blackburn, England, rebuilt in 1991 . (c) Golf course tees at Woburn Abbey, Woburn, England, installed in 1988. (d... treatments at the Texas A&M Turfgrass Laboratory and the turf race course at Santa Anita Park in Arcadia, California. Based on these studies, Sifers and Beard (1992) have deter mined CIY -performance criteria for turfed horse race tracks (Table E-2...

  1. Opening criteria for accelerated paving techniques 

    E-Print Network [OSTI]

    Johnson, Jason Leonard

    1993-01-01T23:59:59.000Z

    ?pih do?il t?r Dummy-groove contraction Dummy-groove, doweled contraction Dlrectioh of pour td I t d. th dotal ba Flee s?N th lob i pated Butt construction Expansion Filler tredeobe O/f I/Iced cf hooked ti b Q I/Z- $o/a Leyed longitudinal, tied...

  2. A NUMERICAL AND EXPERIMENTAL STUDY OF WINDBACK SEALS

    E-Print Network [OSTI]

    Lim, Chae H.

    2010-01-16T23:59:59.000Z

    Windback seals work similarly to labyrinth seals except for the effect of helical groove. These seals are essentially a tooth on stator or tooth on rotor labyrinth seal where the grooves are a continuous helical cut like a thread. Windback seals...

  3. Role of shocks and mix caused by capsule defects

    SciTech Connect (OSTI)

    Bradley, P. A.; Cobble, J. A.; Tregillis, I. L.; Schmitt, M. J.; Obrey, K. D.; Batha, S. H.; Magelssen, G. R.; Fincke, J. R.; Hsu, S. C.; Krasheninnikova, N. S.; Murphy, T. J.; Wysocki, F. J. [Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States); Glebov, V. [Laboratory for Laser Energetics, Rochester, New York 14623 (United States)

    2012-09-15T23:59:59.000Z

    An Eulerian code with a turbulent mix model is used to model a set of plastic (CH) ablator capsules with and without equatorial grooves. The 'perfect' capsule results were used to calibrate simulations of capsules with equatorial grooves of different depths that provided information on increasingly perturbed implosions. Simulations with a turbulence model were able to calculate the same yield over mix (YOM) ratio (experiment/mix simulation) of 0.2 to 0.3 for thin (8-{mu}m thick) and thick shell (15-{mu}m thick) capsules with no grooves and thin capsules with shallow grooves. When the capsules have deep grooves, the YOM ratio increases to greater than unity, probably because the deformed shocks focus too strongly on the symmetry axis in our two-dimensional simulations. This is supported by a comparison of simulated and experimental x-ray images.

  4. Optical Curtain Effect: Extraordinary Optical Transmission Enhanced by Antireflection

    E-Print Network [OSTI]

    Cui, Yanxia; Lin, Yinyue; Li, Guohui; Hao, Yuying; He, Sailing; Fang, Nicholas X

    2012-01-01T23:59:59.000Z

    In this paper, we employ an antireflective coating which comprises of inverted pi shaped metallic grooves to manipulate the behaviour of a TM-polarized plane wave transmitted through a periodic nanoslit array. At normal incidence, such scheme can not only retain the optical curtain effect in the output region, but also generate the extraordinary transmission of light through the nanoslits with the total transmission efficiency as high as 90%. Besides, we show that the spatially invariant field distribution in the output region as well as the field distribution of resonant modes around the inverted pi shaped grooves can be reproduced immaculately when the system is excited by an array of point sources beneath the inverted pi shaped grooves. In further, we investigate the influence of center-groove and side-corners of the inverted pi shaped grooves on suppressing the reflection of light, respectively. Based on our work, it shows promising potential in applications of enhancing the extraction efficiency as well ...

  5. CALIBRATION Parts Set version 8/10/99 STARDUST SPACECRAFT

    E-Print Network [OSTI]

    SOLAR PANELS PANEL STIFFENER PANEL STIFFENER WHIPPLE SHIELDWHIPPLE SHIELD SHIELD SPACERS SHIELD SPACERS-classroom use must be obtained from JPL Commercial Programs Office. #12;X X - Z PANEL REM STAR CAMERAS + Z PANEL X X CUT OUT PRINTING CALIBRATION STARDUST SPACECRAFT Scale Model Parts SHEET 2 + Y PANEL - Y PANEL

  6. Spectroscopic and Optical Characterization of a Series of Azobenzene-Containing Side-Chain Liquid Crystalline Polymers

    E-Print Network [OSTI]

    Pezolet, Michel

    Crystalline Polymers Franc¸ois Lagugne´ Labarthet, Stephan Freiberg, Christian Pellerin,§ Michel Pe ABSTRACT: A series of azobenzene-containing side chain liquid crystalline polymers with various spacer. The annealing process on polymers with short spacers (p4MAN-p8MAN) induces a hypsochromic shift while

  7. General Green's-function formalism for transport calculations with spd Hamiltonians and giant magnetoresistance in Co-and Ni-based magnetic multilayers

    E-Print Network [OSTI]

    Sanvito, Stefano

    to a superlattice made with alternating magnetic and nonmagnetic spacer metallic layers. Early experiments were to the plane of the layers. In this configuration the dimensions of the system are macroscopic with transport switching of the exchange coupling from ferromagnetic to antiferromagnetic, as a function of a spacer layer

  8. RECENT TRENDS IN MAGNETIC BUBBLE-DEVICES (*) C. J. M. ROOYMANS

    E-Print Network [OSTI]

    Boyer, Edmond

    . spacer of around 1 gm, made of silica or another inert oxide and deposited preferably by R. F. sputtering layer (0.4 gm thick) on top. Between the garnet layer and the spacer a 50 A thick permalloy layer can in thickness and dimensions, however, are not identical : while the optimal positioning of the detector

  9. 36 IEEE TRANSACTIONS ON NANOBIOSCIENCE, VOL. 10, NO. 1, MARCH 2011 Dielectrophoretic Field-Flow Microchamber for

    E-Print Network [OSTI]

    Ljubljana, University of

    electrodes, a spacer, and a top cover glass, making the events in the chamber observable under most optical microscopes. The dimensions were optimized based on numerical computa- tions of the electric field, its. A double-sided self-adhesive tape of 100 m thickness was used as a spacer, with an opening of 80 mm length

  10. Double-Resonance Plasmon Substrates for Surface-Enhanced Raman Scattering

    E-Print Network [OSTI]

    disk array, an SiO2 spacer, and a con- tinuous gold film.22 In this work, we investi- gate the use disk separated from a gold film by a spacer layer is 1 order of magnitude higher than that of a gold disk with the same dimensions on a *Address correspondence to kcrozier@seas.harvard.edu. Received

  11. Magnetotransport behavior of Co nanowires coupled to Ni80Fe20 films S. Goolaup, A. O. Adeyeye, and N. Singh

    E-Print Network [OSTI]

    Adeyeye, Adekunle

    of patterned array of 60-nm-thick Co nanowires NWs with Cu spacer layer. The hybrid structures display unique lateral dimensions of the materials have a drastic effect on the fundamental mag- netic properties separated by a Cu spacer layer. The properties of the underlying Co NWs are strongly influ- enced

  12. Theory of spin-transfer torque in the current-in-plane geometries Department of Mathematics, Imperial College, London SW7 2BZ, United Kingdom

    E-Print Network [OSTI]

    Umerski, Andrey

    the lateral dimensions of the switching magnet are of the order of 50­100 interatomic distances, i.e., about the switching magnet and nonmagnetic spacer. Polarization achieved using a lateral magnet in the CIP geometry then flows through a non- magnetic layer the spacer layer and becomes partially or fully absorbed

  13. A 1-GHz Highpass PHEMT Low-Noise Amplifier Steven W. Ellingson

    E-Print Network [OSTI]

    Ellingson, Steven W.

    identical sections which are used as spacers between (1) and (2). The dimensions of the dimensions Noise Figure Dimensions 74 mm Ă? 25 PCB is cut into four sections. The spacer sections are milled out as shown in Figure 9. 2. The SMA

  14. Magnetization reversal mechanisms in diamond-shaped Co nanomagnets S. Goolaup and A. O. Adeyeye*

    E-Print Network [OSTI]

    Adeyeye, Adekunle

    with two Co layers thickness of distinct switching field separated by a Cu spacer layer were fabricated. We influenced by the Cu spacer layer thickness. Our experimental results are in reasonable agreement with simple magnetic elements with reduced dimensions. The influence of shape and size on the magnetic properties

  15. ABSTRACT: A process tolerance analysis of a SiGe NPN HBT with > 200GHz fT and > 250GHz fMAX is

    E-Print Network [OSTI]

    Rieh, Jae-Sung

    process, as well as several lots with intentional modifications in emitter lithography, spacer dimensions thickness, or lithography dimensions. In this paper we discuss the tolerance analysis of high performance Si with current production CMOS technology. A dielectric spacer separates the raised extrinsic base from the LTE

  16. VERTICALAND HORIZONTAL PARALLEL MOUNTING OF MICRO COMPONENTS ON A SUBSTRATE WITH HIGH SURFACE COVERAGE

    E-Print Network [OSTI]

    parts with dimensions of 790µm�790µm�330µm are used for proof-of-concept demonstrations. Each part has of components, even with same dimensions; (6) high surface coverage on a substrate achieved by multi plate Flat plate Water droplets Spacer 1 Spacer 2 Part (a) (b) (c) (d) (e) (f) Flipping over Adhesive

  17. Fragmentation and Dispersion of Reactive Metal Systems Amy Adams, University of Florida, IREP 2010 Fellow

    E-Print Network [OSTI]

    Li, Mo

    of this study. Each setup used Aluminum rings with dimensions of 30mm o.d by 22 mm i.d by 4 mm thickness the detonator holder at known heights, and a Perspex (PMMA) spacer between the Al ring and the explosive, and used an opaque acetal cap instead of a spacer, wax instead of sand for softcatching of fragments

  18. Multilayer Optics for X-Ray Diffractometry

    E-Print Network [OSTI]

    Magee, Joseph W.

    by side Substrate : Roughness Curvature (or plane) in one or two dimensions Multilayer film: Materials spacer absorber = 2sin 1 - 2 - 2 sin2 Bernd Hasse ­ APD IV8 #12; area for deposition: up to 150 x 12 cm, Mo, TiO2, Ni ... spacer: C, BN, B4C, Si,... precision: typical ±1%, up to ±0.2% Difference

  19. IEEE TRANSACTIONS ON MAGNETICS, VOL. 39, NO. 3, MAY 2003 1827 Optimization of Electromagnetic Absorption in

    E-Print Network [OSTI]

    Matous, Karel

    dimensions and sheet resistances offering the best signal absorption over a specified frequency range and a spacer foam interleaved with carbon sheets. Elements of the electro- magnetic scattering theory needed distribution of both carbon sheet resistivities and foam spacer thicknesses deposited on a glass/epoxy laminate

  20. Weak solutions to the Landau-Lifshitz-Maxwell system with nonlinear Neumann boundary

    E-Print Network [OSTI]

    Boyer, Edmond

    ferromagnetic body when super-exchange and sur- face anisotropy interactions are present in the spacer in prove, in three dimensions, the existence of global weak solutions to the Landau-Lifshitz-Maxwell sys2 norm over a measurable set A, we use instead the · L2(A) notation. 2 Geometry of spacers

  1. Multi-Functionality of Novel Structured Tunneling Devices Woo Young Choi, Jae Young Song, Jong Pil Kim, Jong Duk Lee, and Byung-Gook Park

    E-Print Network [OSTI]

    Lee, Jong Duk

    dimensions approach nanoscale region, the physical limitations of MOSFETs become more evident. Also was followed by sequential poly-silicon and TEOS layer deposition (Fig. 2 (d)). Following sidewall-spacer gate) and (f)). Subsequently, TEOS sidewall spacer was formed and then high-energy p-type ion implantation

  2. A RF Lateral BJT on SOI for realization of RF SOI-BiCMOS I-Shan Michael Sun, Wai Tung Ng*, Hidenori Mochizuki, Koji Kanekiyo, Takaaki Kobayashi,

    E-Print Network [OSTI]

    Ng, Wai Tung

    on a self-aligned polysilicon side-wall-spacer (PSWS) to connect the base contact to the intrinsic base with dimensions in 100 nm range. The fabricated LBJTs exhibit superior Johnson's product (fĂ?BVCEO) in the range-dimensional cross-section schematic of the proposed poly-side-wall-spacer (PSWS) LBJT structure [5

  3. JOURNAL DE PHYSIQUE IV C3-11 Colloque C3, suppl. au Journal de Physique 111, Vol. 1, octobre 1991

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    hardened copper. The cylindrical specimenshad dimensions of 6 mm diameter and 5 mm length. The hat the shear concentration region marked in Figure 2. A spacer ring was used to establish the maximumED PULSE INCIDENT PULSE SPACER RING Fig. 2 Hat-shaped specimen usedto generate high shear strainsat high

  4. Variable Dimensionality from Mononuclear and Trinuclear to One and Two Dimensions: A Series of Copper(II) Compounds with 4,4-Dipyridine Dioxide

    E-Print Network [OSTI]

    Gao, Song

    Variable Dimensionality from Mononuclear and Trinuclear to One and Two Dimensions: A Series-H,,,O hydrogen bonding. The introduction of the second spacer, 4,4-bipyridine, generated a 2D architecture [Cu advantages, compared with 4,4-bipyridine: (a) it has a longer spacer that allows for constructing microporous

  5. CX-009197: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    2012 Spacer and Insulator Replacement Program; Hatwai-Dworshak No. 1 500-kilovolt (kV) Transmission Line Spacer Replacement Project CX(s) Applied: B1.3 Date: 09/24/2012 Location(s): Idaho, Idaho Offices(s): Bonneville Power Administration

  6. Estimation of spin-diffusion length from the magnitude of spin-current absorption: Multiterminal ferromagnetic/nonferromagnetic hybrid structures

    E-Print Network [OSTI]

    Otani, Yoshichika

    to large sample dimensions. The current perpendicular to plane CPP giant magnetoresistance measurements by the spacer thickness.5 This tech- nique is suitable for the N layer with magnetic or even non- magnetic of the difficulty in pre- paring a CPP device with the thickness of the N spacer as thick as the spin diffusion

  7. Tungsten silicide and tungsten polycide anisotropic dry etch process for highly controlled dimensions and profiles

    E-Print Network [OSTI]

    Bashir, Rashid

    dimensions and profiles R. Bashir,a),b) A. E. Kabir,b) F. Hebert,c) and C. Brackenb) National Semiconductors. In many applications a spacer needs to be formed on the polycide sidewall Fig. 1 . Undesirable undercutting can re- sult in nonideal spacer formation for further device fabrica- tion. Tungsten silicide

  8. Accelerated ageing of solar control IGUs EN1279-3 compared to climate cabinet, CliSim

    E-Print Network [OSTI]

    glazing. The influence of the dimensions of the IGU with regard to the gas leakage rate was also tested System description Glass ­ outer 4 mm SKN 172 ­ Cool Lite Glass ­ inner 4 mm float G6 Cavity 16 mm Spacer Swiss spacer Outer sealing Fenzi Butyl Fenzi Corner connection 4 pieces of plastic Desiccant Phonosorb

  9. Delivered by Ingenta to: IP : 93.32.32.85

    E-Print Network [OSTI]

    De Micheli, Giovanni

    of the spacer technique to yield nanowires with a pitch below the photolithography limit. We introduce Nanowires, Spacer Technique, Deep Reactive Ion Etching, Memory, Reconfigurable Logic, Crossbar. 1 nanowires on a silicon substrate. The growth position, dimensions and doping concentration are controlled

  10. Some aspects of simulation and realization of an optical reference cavity

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    of the cavity can be achieved by choosing a tapered form for the cavity spacer. The gain with respect eigenfrequencies is estimated to be an order of magnitude larger than the dimensions of the cavity. In the present work, we have investigated the influence of different aspects of the spacer's geometry

  11. Vacuum encapsulated hermetically sealed diamond amplified cathode capsule and method for making same

    DOE Patents [OSTI]

    Rao, Triveni; Walsh, John; Gangone, Elizabeth

    2014-12-30T23:59:59.000Z

    A vacuum encapsulated, hermetically sealed cathode capsule for generating an electron beam of secondary electrons, which generally includes a cathode element having a primary emission surface adapted to emit primary electrons, an annular insulating spacer, a diamond window element comprising a diamond material and having a secondary emission surface adapted to emit secondary electrons in response to primary electrons impinging on the diamond window element, a first cold-weld ring disposed between the cathode element and the annular insulating spacer and a second cold-weld ring disposed between the annular insulating spacer and the diamond window element. The cathode capsule is formed by a vacuum cold-weld process such that the first cold-weld ring forms a hermetical seal between the cathode element and the annular insulating spacer and the second cold-weld ring forms a hermetical seal between the annular spacer and the diamond window element whereby a vacuum encapsulated chamber is formed within the capsule.

  12. Thermomechanical history measurements on Type 304L stainless steel pipe girth welds

    SciTech Connect (OSTI)

    Li, Ming; Atteridge, D.G.; Anderson, W.E.; Turpin, R. [Oregon Graduate Inst., Portland, OR (United States); West, S.L. [Westinghouse Savannah River Co., Aiken, SC (United States)

    1993-12-31T23:59:59.000Z

    Thermal and strain histories were recorded for three 40-cm-diameter (16 inch), Type 304L stainless steel (SS), schedule 40 (1.27 cm thickness) pipe girth welds. Two weld groove preparations were standard V grooves while the third was a narrow groove configuration. The welding parameters for the three pipe welds simulated expected field practice as closely as possible. The narrow gap weld was completed in four continuous passes while the other two welds required six and nine (discontinuous) passes, due to the use of different weld wire diameters. Thermomechanical history measurements were taken on the inner counterbore surface, encompassing the weld centerline and heat-affected zone (HAZ), as well as 10 cm of inner counterbore surface on either side of the weld centerline; a total of 47 data acquisition instruments were used for each weld. These instruments monitored: (1) weld shrinkages parallel to the pipe axis; (2) surface temperatures; (3) surface strains parallel to weld centerline; and (4) radial deformations. Results show that the weld and HAZ experienced cyclic deformation in the radial direction during welding, indicating that the final residual stress distribution in multi-pass pipe weldments is not axisymmetric. Measured radial and axial deformations were smaller for the narrow gap groove than for the standard V grooves, suggesting that the narrow gap groove weldment may have lower residual stress levels than the standard V groove weldments. This study provides the experimental database and a guideline for further computational modeling work.

  13. Storage containers for radioactive material

    DOE Patents [OSTI]

    Groh, E.F.; Cassidy, D.A.; Dates, L.R.

    1980-07-31T23:59:59.000Z

    A radioactive material storage system is claimed for use in the laboratory having a flat base plate with a groove in one surface thereof and a hollow pedestal extending perpendicularly away from the other surface thereof, a sealing gasket in the groove, a cover having a filter therein and an outwardly extending flange which fits over the plate, the groove and the gasket, and a clamp for maintaining the cover and the plate sealed together. The plate and the cover and the clamp cooperate to provide a storage area for radioactive material readily accessible for use or inventory. Wall mounts are provided to prevent accidental formation of critical masses during storage.

  14. Arrangement for connecting a fiber-reinforced plastic pipe to a stainless steel flange

    DOE Patents [OSTI]

    Allais, Arnaud (D-30625 Hannover, DE); Hoffmann, Ernst (D-30855 Langenhagen, DE)

    2008-02-05T23:59:59.000Z

    Arrangement for connecting a fiber-reinforced plastic pipe (18) to a stainless steel flange (12, 16), in which the end of the fiber-reinforced plastic pipe (18) is accommodated in a ring-shaped groove (12a, 16a) in the flange (12, 16), the groove conforming to the dimensions of the fiber-reinforced plastic pipe (18), where the gap remaining between the end of the fiber-reinforced plastic pipe (18) and the ring-shaped groove (12a, 16a) is filled with a sealant (19).

  15. Shielded serpentine traveling wave tube deflection structure

    DOE Patents [OSTI]

    Hudson, Charles L. (Santa Barbara, CA); Spector, Jerome (Berkeley, CA)

    1994-01-01T23:59:59.000Z

    A shielded serpentine slow wave deflection structure (10) having a serpene signal conductor (12) within a channel groove (46). The channel groove (46) is formed by a serpentine channel (20) in a trough plate (18) and a ground plane (14). The serpentine signal conductor (12) is supported at its ends by coaxial feed through connectors 28. A beam interaction trough (22) intersects the channel groove (46) to form a plurality of beam interaction regions (56) wherein an electron beam (54) may be deflected relative to the serpentine signal conductor (12).

  16. Leak detection aid

    DOE Patents [OSTI]

    Steeper, Timothy J. (Graniteville, SC)

    1989-01-01T23:59:59.000Z

    A leak detection apparatus and method for detecting leaks across an O-ring sealing a flanged surface to a mating surface is an improvement in a flanged surface comprising a shallow groove following O-ring in communication with an entrance and exit port intersecting the shallow groove for injecting and withdrawing, respectively, a leak detection fluid, such as helium. A small quantity of helium injected into the entrance port will flow to the shallow groove, past the O-ring and to the exit port.

  17. Leak detection aid

    DOE Patents [OSTI]

    Steeper, T.J.

    1989-12-26T23:59:59.000Z

    A leak detection apparatus and method for detecting leaks across an O-ring sealing a flanged surface to a mating surface is an improvement in a flanged surface comprising a shallow groove following O-ring in communication with an entrance and exit port intersecting the shallow groove for injecting and withdrawing, respectively, a leak detection fluid, such as helium. A small quantity of helium injected into the entrance port will flow to the shallow groove, past the O-ring and to the exit port. 2 figs.

  18. Production Of Hydroxylated Fatty Acids In Genetically Modified Plants

    DOE Patents [OSTI]

    Hall, David R. (Provo, UT); Fox, Joe (Provo, UT)

    2002-05-21T23:59:59.000Z

    An annular wire harness for use in drill pipe comprising two rings interconnected by one or more insulated conductors. The rings are positioned within annular grooves located within the tool joints and the conductors are fixed within grooves along the bore wall of the pipe. The rings may be recessed within annular grooves in order to permit refacing of the tool joint. The rings are provided with means for coupling a power and data signal from an adjacent pipe to the conductors in such a fashion that the signal may be transmitted along the drill pipe and along an entire drill string.

  19. Nano fabrication approaches for patterned magnetic recording media

    E-Print Network [OSTI]

    Choi, Chulmin

    2010-01-01T23:59:59.000Z

    domains into V-shaped grooves. Nano Letters, 2006. 6(10): p.of a diblock copolymer. Nano Letters, 2008. 8(9): p. Chuang,an ABC Triblock Terpolymer. Nano Letters, 2009. 9(12): p.

  20. Femtosecond surface plasmon interferometry with gold nanostructures

    E-Print Network [OSTI]

    Temnov, Vasily V.

    We measure the ultrafast electron dynamics in gold via ultrafast surface plasmon interferometry. A new plasmonic microinterferometer with tilted slit-groove pair is used to unambiguously determine changes of real and ...

  1. Femtosecond surface plasmon interferometry

    E-Print Network [OSTI]

    Temnov, Vasily V.

    We demonstrate femtosecond plasmonic interferometry with a novel geometry. The plasmonic microinterferometer consists of a tilted slit-groove pair. This arrangement allows for (i) interferometric measurements at a single ...

  2. This content has been downloaded from IOPscience. Please scroll down to see the full text. Download details

    E-Print Network [OSTI]

    Rubloff, Gary W.

    of multiple ball-bearing supported microturbines. Deep-groove geometry has been chosen for the microball micromachines. Proof-of-concept demonstrations of micromotors [1], microturbines [2], micropumps [3

  3. DOI: 10.1002/cbic.200500285 Binding of Helix-Threading Peptides to E. coli

    E-Print Network [OSTI]

    Beal, Peter A.

    ] To further explore and develop the capabilities of the HTP design for binding RNA selectively, we identified duplex grooves. To further explore and develop the capabili- ties of the HTP design for binding RNA

  4. GUIDELINES FOR ORGANIZATION OF TECHNICAL REPORTS (DEC 1999)

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

    system that was based on conventional equipment except for a special HP downhole motor and jet bit specially designed to erode radial kerfs (grooves) in the rock which are...

  5. Synthesis and Characterization of Plasmonic Resonant Guided Wave Stanley P. Burgos,,

    E-Print Network [OSTI]

    Atwater, Harry

    wave network by demonstrating that a 90° waveguide junction of two v-groove channel plasmon polariton configurations, e.g., using optical fibers or Si rib waveguides in planar Si photonic structures,4,5 or metal

  6. Performance of a Short Open-End Squeeze Film Damper With Feed Holes: Experimental Analysis of Dynamic Force Coefficients

    E-Print Network [OSTI]

    Bradley, Gary Daniel

    2013-07-19T23:59:59.000Z

    features affect the SFD forced performance. This thesis presents a comprehensive analysis, experimental and theoretical, of a short (L=25.4 mm) open ends SFD design incorporating three lubricant feed holes (without a circumferential feed groove...

  7. Effective Slip over Superhydrophobic Surfaces in Thin Channels

    E-Print Network [OSTI]

    Feuillebois, Francois

    Superhydrophobic surfaces reduce drag by combining hydrophobicity and roughness to trap gas bubbles in a microscopic texture. Recent work has focused on specific cases, such as arrays of pillars or grooves, with limited ...

  8. Enhanced vbasis laser diode package

    DOE Patents [OSTI]

    Deri, Robert J.; Chen, Diana; Bayramian, Andy; Freitas, Barry; Kotovsky, Jack

    2014-08-19T23:59:59.000Z

    A substrate having an upper surface and a lower surface is provided. The substrate includes a plurality of v-grooves formed in the upper surface. Each v-groove includes a first side and a second side perpendicular to the first side. A laser diode bar assembly is disposed within each of the v-grooves and attached to the first side. The laser diode bar assembly includes a first adhesion layer disposed on the first side of the v-groove, a metal plate attached to the first adhesion layer, a second adhesion layer disposed over the metal plate, and a laser diode bar attached to the second adhesion layer. The laser diode bar has a coefficient of thermal expansion (CTE) substantially similar to that of the metal plate.

  9. Wave guide impedance matching method and apparatus

    DOE Patents [OSTI]

    Kronberg, James W. (Beech Island, SC)

    1990-01-01T23:59:59.000Z

    A technique for modifying the end portion of a wave guide, whether hollow or solid, carrying electromagnetic, acoustic or optical energy, to produce a gradual impedance change over the length of the end portion, comprising the cutting of longitudinal, V-shaped grooves that increase in width and depth from beginning of the end portion of the wave guide to the end of the guide so that, at the end of the guide, no guide material remains and no surfaces of the guide as modified are perpendicular to the direction of energy flow. For hollow guides, the grooves are cut beginning on the interior surface; for solid guides, the grooves are cut beginning on the exterior surface. One or more resistive, partially conductive or nonconductive sleeves can be placed over the exterior of the guide and through which the grooves are cut to smooth the transition to free space.

  10. 1997 Oxford University Press49945002 Nucleic Acids Research, 1997, Vol. 25, No. 24 Information analysis of Fis binding sites

    E-Print Network [OSTI]

    Schneider, Thomas D.

    © 1997 Oxford University Press4994­5002 Nucleic Acids Research, 1997, Vol. 25, No. 24 Information to fit into two successive major grooves on straight B-form DNA, suggesting that the DNA bends

  11. Low-cost laser diode array

    DOE Patents [OSTI]

    Freitas, B.L.; Skidmore, J.A.

    1999-06-01T23:59:59.000Z

    A substrate is used to fabricate a low-cost laser diode array. A substrate is machined from an electrically insulative material that is thermally conductive, or two substrates can be bonded together in which the top substrate is electrically as well as thermally conductive. The substrate thickness is slightly longer than the cavity length, and the width of the groove is wide enough to contain a bar and spring (which secures the laser bar firmly along one face of the groove). The spring also provides electrical continuity from the backside of the bar to the adjacent metalization layer on the laser bar substrate. Arrays containing one or more bars can be formed by creating many grooves at various spacings. Along the groove, many bars can be adjoined at the edges to provide parallel electrical conduction. This architecture allows precise and predictable registration of an array of laser bars to a self-aligned microlens array at low cost. 19 figs.

  12. Ceramic blade attachment system

    DOE Patents [OSTI]

    Shaffer, J.E.

    1995-07-11T23:59:59.000Z

    A turbine blade having a preestablished rate of thermal expansion is attached to a turbine disc having a preestablished rate of thermal expansion being greater than the preestablished rate of thermal expansion of the turbine blade and forms a turbine assembly. The turbine blade has a root portion defining a pair of sides having a pair of grooves therein. The turbine assembly includes a pair of flanges between which the turbine blades are positioned. Each of the pair of flanges has a plurality of grooves defined therein. The grooves within the pair of flanges are aligned with the grooves in the blades and have a space formed therebetween. A plurality of spherical balls are positioned within the space. The plurality of spherical balls has a preestablished rate of thermal expansion being equal to the preestablished rate of thermal expansion of the turbine blade. 4 figs.

  13. Running tool for liner hanger

    SciTech Connect (OSTI)

    Melenyzer, G.J.

    1990-03-27T23:59:59.000Z

    This patent describes a running tool. It is for a liner hanger having an annular groove in its bore, and upwardly facing slots in its upper end, and a liner string depending therefrom.

  14. Low-cost laser diode array

    DOE Patents [OSTI]

    Freitas, Barry L. (Livermore, CA); Skidmore, Jay A. (Livermore, CA)

    1999-01-01T23:59:59.000Z

    A substrate is used to fabricate a low-cost laser diode array. A substrate is machined from an electrically insulative material that is thermally conductive, or two substrates can be bonded together in which the top substrate is electrically as well as thermally conductive. The substrate thickness is slightly longer than the cavity length, and the width of the groove is wide enough to contain a bar and spring (which secures the laser bar firmly along one face of the groove). The spring also provides electrical continuity from the backside of the bar to the adjacent metalization layer on the laser bar substrate. Arrays containing one or more bars can be formed by creating many grooves at various spacings. Along the groove, many bars can be adjoined at the edges to provide parallel electrical conduction. This architecture allows precise and predictable registration of an array of laser bars to a self-aligned microlens array at low cost.

  15. Planarization of amorphous carbon films on patterned substrates using gas cluster ion beams

    SciTech Connect (OSTI)

    Toyoda, Noriaki; Yamada, Isao [Incubation Center, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280 (Japan); Nagato, Keisuke; Nakao, Masayuki; Hamaguchi, Tetsuya [Department of Engineering Synthesis, School of Engineering, the University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan); Tani, Hiroshi [Department of Mechanical Engineering, Kansai University, 3-3-35 Yamate-cho, Suita, Osaka 564-8680 (Japan); Sakane, Yasuo [Western Digital Media Operations, 1710 Automation Parkway, San Jose, CA 95131 (United States)

    2009-04-01T23:59:59.000Z

    Surface planarization and modification of a patterned surface were demonstrated using gas cluster ion beam (GCIB). Grooves with 100-400 nm intervals were formed on amorphous carbon films using focused ion beams to study the special frequency dependence of the planarization. Also, line and space patterns were fabricated on Si substrates, and amorphous carbons were deposited as a model structure of discrete track media. Subsequently, surface planarization using Ar-GCIB was carried out. After GCIB irradiations, all of the grooves were completely removed, and a flat surface was realized. And it showed that GCIB irradiation planarized grooves without huge thickness loss. From the power spectrum density of an atomic force microscope, GCIB preferentially removed grooves with small intervals. It was found from energy dispersive x-ray spectroscopy that surface planarization without severe damage in the amorphous carbon and magnetic layers was carried out with GCIB.

  16. Magneto-optical manipulation of surface plasmons in gold/ferromagnetic/gold multilayer films

    E-Print Network [OSTI]

    Temnov, Vasily V.

    Modulation of the surface plasmon wave vector in composite gold/cobalt/gold multilayer films due to periodic magnetization switching in cobalt is observed with a tilted slit-groove microinterferometer.

  17. A HIGH GRADIENT QUADRUPOLE MAGNET FOR THE SSC

    E-Print Network [OSTI]

    Taylor, C.

    2010-01-01T23:59:59.000Z

    on gradient and qu;;lity, if the buss grooves are located atto accommodate the m;;! in current buss, the lowp.r ']roovewIring and corrector buss, and thp. symmetrically-placed

  18. Ceramic blade attachment system

    DOE Patents [OSTI]

    Shaffer, James E. (Maitland, FL)

    1995-01-01T23:59:59.000Z

    A turbine blade having a preestablished rate of thermal expansion is attached to a turbine disc having a preestablished rate of thermal expansion being greater than the preestablished rate of thermal expansion of the turbine blade and forms a turbine assembly. The turbine blade has a root portion defining a pair of sides having a pair of grooves therein. The turbine assembly includes a pair of flanges between which the turbine blades are positioned. Each of the pair of flanges has a plurality of grooves defined therein. The grooves within the pair of flanges are aligned with the grooves in the blades and have a space formed therebetween. A plurality of spherical balls are positioned within the space. The plurality of spherical balls has a preestablished rate of thermal expansion being equal to the preestablished rate of thermal expansion of the turbine blade.

  19. A kinematic coupling based 6 degrees of freedom dynamometer

    E-Print Network [OSTI]

    Moreu Gamazo, Jaime

    2009-01-01T23:59:59.000Z

    A new 6-degree of freedom dynamometer is presented. Six load cells measure the normal forces at the contact points of a three groove kinematic coupling. Three toggle clamps are used to preload the machine, so that it does ...

  20. Olfactory sensilla of the antennal flagellum of the horn fly, Haematobia irritans, (Linnaeus) (Diptera: Muscidae)

    E-Print Network [OSTI]

    White, Sandy Lee

    1978-01-01T23:59:59.000Z

    of olfactory sensilla are interspersed with noninnervated cuticular spines on the funicular surfaces: (1) multiporous thick-walled sensil- la; (2) multiporous thin-walled sensilla, subtype Ia and subtype Ib; (3) multiporous thin-walled sensi lla, type II...; and (4) surface grooved sensi lie. In addition, 1 ventral and 3 dorsal pits are populated with sunken multiporous thin-walled sensflla and sunken grooved sensilla. Numerous depressions at the base of the ventral surface possess multi- porous clavate...

  1. Computational model for high-energy laser-cutting process

    SciTech Connect (OSTI)

    Kim, M.J.; Majumdar, P. [Northern Illinois Univ., DeKalb, IL (United States). Dept. of Mechanical Engineering

    1995-06-01T23:59:59.000Z

    A computational model for the simulation of a laser-cutting process has been developed using a finite element method. A transient heat transfer model is considered that deals with the material-cutting process using a Gaussian continuous wave laser beam. Numerical experimentation is carried out for mesh refinements and the rate of convergence in terms of groove shape and temperature. Results are also presented for the prediction of groove depth with different moving speeds.

  2. 596 IEEE JOURNAL OF QUANTUM ELECTRONICS, VOL. 41, NO. 4, APRIL 2005 Nanoscale Spatial Phase Modulation of GaN on

    E-Print Network [OSTI]

    New Mexico, University of

    Modulation of GaN on a V-Grooved Si Substrate--Cubic Phase GaN on Si(001) for Monolithic Integration S. C Abstract--Nanoscale spatial phase modulation of GaN gorwn on a 355-nm period array of V-grooves fabricated in a Si(001) substrate is reported. Orientation-dependent selective nucleation of GaN in metal

  3. Daphne in the twentieth century: the grotesque in modern poetry 

    E-Print Network [OSTI]

    Martin, Thomas Henry

    2009-05-15T23:59:59.000Z

    . They desperately tried to remake their angry world. They searched and tore apart and rebuilt everything they thought would help to remake this world, or at least to connect back to it, to be a part of it. They wanted to rid themselves of that feeling...? of modernist architecture may well have reached its climax with Frank Lloyd Wright?s ?Johnson?s Wax Building,? with its enormous lily pads holding up a roof over the main office space. Nature and man were forged into a new alliance in which both terms lost...

  4. Burnup calculation by the method of first-flight collision probabilities using average chords prior to the first collision

    SciTech Connect (OSTI)

    Karpushkin, T. Yu., E-mail: timka83@yandex.ru [Russian Research Centre Kurchatov Institute (Russian Federation)

    2012-12-15T23:59:59.000Z

    A technique to calculate the burnup of materials of cells and fuel assemblies using the matrices of first-flight neutron collision probabilities rebuilt at a given burnup step is presented. A method to rebuild and correct first collision probability matrices using average chords prior to the first neutron collision, which are calculated with the help of geometric modules of constructed stochastic neutron trajectories, is described. Results of calculation of the infinite multiplication factor for elementary cells with a modified material composition compared to the reference one as well as calculation of material burnup in the cells and fuel assemblies of a VVER-1000 are presented.

  5. Investigation of the absorption principle involved in the analyses and titrations performed in high frequency fields 

    E-Print Network [OSTI]

    Griffin, James Hilton

    1940-01-01T23:59:59.000Z

    , demnding upon the ohoioe of titration frequen op. lf the titrating agent shows ths hidaer abserytien, its exsess at the end point osuses the ohange in Che output of the osoillator. If the substanoe being titrate4 shows the higher absorptiony its... for 4h? detensinabion of tho vari- 5 ation of dieleotrio constant in volunetrio analysis, wss completely rebuilt ~ Although the siss type of equi~at was used, several ohsngos were made in order to increase stability aad sensitivity. The power supply...

  6. Design, start up, and three years operating experience of an ammonia scrubbing, distillation, and destruction plant

    SciTech Connect (OSTI)

    Gambert, G.

    1996-12-31T23:59:59.000Z

    When the rebuilt Coke Plant started operations in November of 1992, it featured a completely new closed circuit secondary cooler, ammonia scrubbing, ammonia distillation, and ammonia destruction plants. This is the second plant of this type to be built in North America. To remove the ammonia from the gas, it is scrubbed with three liquids: Approximately 185 gallons/minute of cooled stripped liquor from the ammonia stills; Light oil plant condensate; and Optionally, excess flushing liquor. These scrubbers typically reduce ammonia content in the gas from 270 Grains/100 standard cubic feet to 0.2 Grains/100 standard cubic feet.

  7. EIS-0379- Rebuild of the Libby (FEC) to Troy Section of BPA’s 115-kilovolt Transmission Line in Libby, Lincoln County, Montana

    Broader source: Energy.gov [DOE]

    This Environmental Impact Statement (EIS) assesses the potential environmental impacts that would result from a proposed Department of Energy (DOE) action on the proposed rebuilding, operation, and maintenance of a 17-mile-long portion of BPA’s Libby to Bonners Ferry 115-kilovolt (kV) Transmission Line in Lincoln County, Montana. The portion to be rebuilt would start at Flathead Electric Cooperative’s (FEC) Libby Substation, in the town of Libby, Montana, and proceed west along an existing right-of-way for about 17 miles, terminating at BPA’s Troy Substation just east of the town of Troy, Montana.

  8. The Results of Recent MICE Superconducting Spectrometer Solenoid Test

    SciTech Connect (OSTI)

    Green, Michael A; Virostek, Steve P.; Zisman, Michael S.

    2010-10-15T23:59:59.000Z

    The MICE spectrometer solenoid magnets will be the first magnets to be installed within the MICE cooling channel. The MICE spectrometer solenoids may be the largest magnets that have been cooled using small two stage coolers. During the previous test of this magnet, the cooler first stage temperatures were too high. The causes of some of the extra first stage heat load has been identified and corrected. The rebuilt magnet had a single stage GM cooler in addition to the three pulse tube coolers. The added cooler reduces the temperature of the top of the HTS leads, the shield and of the first stage of the pulse tube coolers.

  9. CX-003611: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination Schultz - Raver Number 3 and 4 500-kilovolt (kV) Transmission Lines Spacer Replacement CX(s) Applied: B1.3 Date: 08252010 Location(s): King...

  10. Key Elements of and Materials Performance Targets for Highly Insulating Window Frames

    E-Print Network [OSTI]

    Gustavsen, Arild

    2012-01-01T23:59:59.000Z

    in light green. 2.5 Window Frame E (PVC) Window frame Eis polyvinyl chloride (PVC). We performed calculations forspacer = 0.25?0.1 W/(mK) ? pvc = 0.9 W/(mK), ? eff. ,spacer

  11. DOE issues Finding of No Significant Impact for the Environmental...

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

    You are here: DOE-ID Home > DOE-ID Press Releases > Article Image layout spacer Environmental Management Consolidated Business Center 250 E. 5th Street, Suite 500, Cincinnati,...

  12. Performance Criteria for Residential Zero Energy Windows Dariush Arasteh*, Howdy Goudey, Joe Huang, Christian Kohler, and Robin Mitchell

    E-Print Network [OSTI]

    be achieved with three layers of glass, two low-e coatings and a low-conductivity gas fill. Vacuum units and aerogel are other alternatives under R&D. Spacer and frame effects can be expected to degrade

  13. Polyelectrolyte-based Nanoparticles for Gene and Protein Delivery

    E-Print Network [OSTI]

    Khondee, Supang

    2011-05-31T23:59:59.000Z

    targeting intercellular cell-adhesion molecule-1 (ICAM-1) was conjugated to TAT peptide using a polyethylene glycol (PEG) spacer. Though the transfection efficiency of TAT polyplexes was reduced by PEGylation, TAT complexes targeting ICAM-1 were able...

  14. CX-010738: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    2013 Spacer and Insulator Replacement Program; Third and Fourth Quarter Projects CX(s) Applied: B1.3 Date: 07/15/2013 Location(s): Washington, Washington, Washington Offices(s): Bonneville Power Administration

  15. Compact vacuum insulation embodiments

    DOE Patents [OSTI]

    Benson, D.K.; Potter, T.F.

    1992-04-28T23:59:59.000Z

    An ultra-thin compact vacuum insulation panel is comprised of two hard, but bendable metal wall sheets closely spaced apart from each other and welded around the edges to enclose a vacuum chamber. Glass or ceramic spacers hold the wall sheets apart. The spacers can be discrete spherical beads or monolithic sheets of glass or ceramic webs with nodules protruding therefrom to form essentially point' or line' contacts with the metal wall sheets. In the case of monolithic spacers that form line' contacts, two such spacers with the line contacts running perpendicular to each other form effectively point' contacts at the intersections. Corrugations accommodate bending and expansion, tubular insulated pipes and conduits, and preferred applications are also included. 26 figs.

  16. A new class of photoresponsive surfactants

    E-Print Network [OSTI]

    Shang, Tiangang, 1969-

    2005-01-01T23:59:59.000Z

    In this thesis, a new class of nonionic, photoresponsive surfactants consisting of a polar di(ethylene oxide) head group attached to an alkyl spacer of between two and eight methylene groups, coupled through an ether linkage ...

  17. Electrochemical detection of low-copy number salivary RNA based on specific signal amplification with a hairpin probe

    E-Print Network [OSTI]

    2008-01-01T23:59:59.000Z

    or biotin-(tetra-ethyleneglycol) TEG (the structure as shownchip surface: biotin link, biotin-TEG, biotin-9 thymidines (T 9 ) and biotin-TEG-T 9 . Biotin-TEG had an extra spacer

  18. Improving CMOS Speed and Switching Power with Air-Gap Structures

    E-Print Network [OSTI]

    Park, Je Min

    2011-01-01T23:59:59.000Z

    stor with conve entional contac ct process. (a) After Aheig ght is 600 Ĺ. . The contac t size is 30nm and the hetr ransistor with circular contac ct. (b) Vacuum m spacer

  19. Compact vacuum insulation

    DOE Patents [OSTI]

    Benson, David K. (Golden, CO); Potter, Thomas F. (Denver, CO)

    1993-01-01T23:59:59.000Z

    An ultra-thin compact vacuum insulation panel is comprised of two hard, but bendable metal wall sheets closely spaced apart from each other and welded around the edges to enclose a vacuum chamber. Glass or ceramic spacers hold the wall sheets apart. The spacers can be discrete spherical beads or monolithic sheets of glass or ceramic webs with nodules protruding therefrom to form essentially "point" or "line" contacts with the metal wall sheets. In the case of monolithic spacers that form "line" contacts, two such spacers with the line contacts running perpendicular to each other form effectively "point" contacts at the intersections. Corrugations accommodate bending and expansion, tubular insulated pipes and conduits, and preferred applications are also included.

  20. Compact vacuum insulation

    DOE Patents [OSTI]

    Benson, D.K.; Potter, T.F.

    1993-01-05T23:59:59.000Z

    An ultra-thin compact vacuum insulation panel is comprised of two hard, but bendable metal wall sheets closely spaced apart from each other and welded around the edges to enclose a vacuum chamber. Glass or ceramic spacers hold the wall sheets apart. The spacers can be discrete spherical beads or monolithic sheets of glass or ceramic webs with nodules protruding therefrom to form essentially point'' or line'' contacts with the metal wall sheets. In the case of monolithic spacers that form line'' contacts, two such spacers with the line contacts running perpendicular to each other form effectively point'' contacts at the intersections. Corrugations accommodate bending and expansion, tubular insulated pipes and conduits, and preferred applications are also included.

  1. Compact vacuum insulation embodiments

    DOE Patents [OSTI]

    Benson, David K. (Golden, CO); Potter, Thomas F. (Denver, CO)

    1992-01-01T23:59:59.000Z

    An ultra-thin compact vacuum insulation panel is comprised of two hard, but bendable metal wall sheets closely spaced apart from each other and welded around the edges to enclose a vacuum chamber. Glass or ceramic spacers hold the wall sheets apart. The spacers can be discrete spherical beads or monolithic sheets of glass or ceramic webs with nodules protruding therefrom to form essentially "point" or "line" contacts with the metal wall sheets. In the case of monolithic spacers that form "line" contacts, two such spacers with the line contacts running perpendicular to each other form effectively "point" contacts at the intersections. Corrugations accommodate bending and expansion, tubular insulated pipes and conduits, and preferred applications are also included.

  2. Microsoft Word - CX-ChiefJosephPHspacers_WEB.doc

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

    KEPR-4 SUBJECT: Environmental Clearance Memorandum Corinn Castro Program Manager - TELM-TPP-3 Proposed Action: Replace spacer dampers along the Chief Joseph PH-Chief Joseph No. 6...

  3. Photos placed in horizontal position

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

    and Strain Gauge on Top-Center Zircaloy Tube and Spacer Grid Right: Assembly within Open Basket. Note the two Zircaloy-4 rods with instrumentation attached Shaker Shock Test...

  4. ISSN (print) 0093-4666 2012. Mycotaxon, Ltd. ISSN (online) 2154-8889 http://dx.doi.org/10.5248/122.389

    E-Print Network [OSTI]

    Silver, Whendee

    the identification of these taxa, we compared the nucleotide sequences from the internal transcribed spacer region), and Smith & Trappe 1972. Spore dimensions are reported based on the literature and as measured in this study

  5. Mycologia, 96(6), 2004, pp. 13301338. 2004 by The Mycological Society of America, Lawrence, KS 66044-8897

    E-Print Network [OSTI]

    Blanchette, Robert A.

    temperate regions of North America. Sequences from internal transcribed spacer (ITS) regions of rDNA were, he noted that ``overlapping dimensions of spores and spore walls in Canadian willow rusts make

  6. 1376 IEEE TRANSACTIONS ON ELECTRON DEVICES, VOL. 52, NO. 7, JULY 2005 Lateral High-Speed Bipolar Transistors

    E-Print Network [OSTI]

    Ng, Wai Tung

    . The fab- rication process relies on polysilicon side-wall-spacer (PSWS) to self-align the base contact. In this unique design, the critical dimensions are not limited by lithography resolution. With the control

  7. DOI: 10.1002/cphc.200600108 Specific Vectorial Immobilization of

    E-Print Network [OSTI]

    Dekker, Cees

    . The nanoscopic dimensions led to a high current density at the electrode surface, allowing the study of both. This can be achieved by coupling a unique surface amino-acid residue, either directly or via a short spacer

  8. Thermally activated switching in spin-flop tunnel junctions V. Korenivskia

    E-Print Network [OSTI]

    Haviland, David

    -closed multilayers, consisting of two ferromagnetic layers separated by a thin nonmagnetic spacer, have been proposed of similar lateral dimensions. Spin-flop junctions with writing circuits have been fab- ricated by methods

  9. Electrical Characterization of Layer-Exchange Solid-Phase Epitaxy Si Diode Junctions

    E-Print Network [OSTI]

    Technische Universiteit Delft

    . The controllability of the growth location and dimensions, practically unchanged when the downscale is reduced nitride (SiNx) spacer technology [14], mature in our research laboratory, has L 408 #12;been used: a 300

  10. 1 Copyright 2008 by ASME Proceedings of ICNMM2008

    E-Print Network [OSTI]

    Kandlikar, Satish

    separated by Teflon spacer strips to create a channel that was 10 mm by 0.5 mm. Similarity, Niida et al a Dh of 727 µm. In the present fouling studies microchannels are being used which have dimensions

  11. CX-004258: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Replace Spacer Dampers Along the Ostrander-McLaughlin Number 1 500-Kilovolt Transmission LineCX(s) Applied: B1.3Date: 09/29/2010Location(s): Clackamas County, OregonOffice(s): Bonneville Power Administration

  12. The NanoMax-TSTM three-axis stage offers an unmatched combination of

    E-Print Network [OSTI]

    Kik, Pieter

    555 Spacer Block to Raise Optical- Axis Height to 125-mm 17 AMA 554 ©2002 MELLES GRIOT MCE 1042 03 holes threaded M2 on 20 centers dimensions: millimeters 17 MAX 302 3-axis stage MELLES GRIOT

  13. Magnetostatics of synthetic ferrimagnet elements Olivier Fruchart

    E-Print Network [OSTI]

    coupled antiferromagnetically thanks to the RKKY interaction present in an ultrathin metal spacer layer in flat elements as dipolar field are very short-ranged in two dimensions12 . In this Letter we re- port

  14. Spin injection and spin dynamics at the CuPc/GaAs interface studied with ultraviolet photoemission spectroscopy and two-photon photoemission spectroscopy

    E-Print Network [OSTI]

    Aeschlimann, Martin

    to the device dimensions with- out loss of the spin polarization, which is most commonly defined experimentally in space. Novel magnetoresistive devices using semiconductor spacer materials are generally based

  15. Second ligand-directed self-assembly of lanthanide(III) coordination polymers with 1,4-naphthalenedicarboxylate

    E-Print Network [OSTI]

    Gao, Song

    to different dimensions. 1,4-Naphthalenedicarboxylic acid (NDC) is a rigid linear bifunctional ligand. Its used as an excellent spacer in the con- struction of transition metal coordination polymers

  16. CX-005131: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Spacer-Damper Replacements on the Captain Jack-Malin 500-kilovolt Transmission LineCX(s) Applied: B1.3Date: 01/24/2011Location(s): Klamath County, OregonOffice(s): Bonneville Power Administration

  17. Elastic fields of quantum dots in subsurface layers A. E. Romanov

    E-Print Network [OSTI]

    Beltz, Glenn E.

    to vertical stacking of dots provided that the thickness of the intervening layer ``spacer layer'' is in the order or thinner than the lateral dimensions of the dot.4 It is now clear that dot ordering is driven

  18. PHYSICAL REVIEW B VOLUME 41, NUMBER 2 15 JANUARY 1990-I Disorder, screening, and quantum Hall oscillations

    E-Print Network [OSTI]

    Glyde, Henry R.

    to two dimensions (2D) display in- triguing physical properties and have important device applications,,Gal ,,As.The impurities are separated from the 2D EG by a spacer of pure material of thickness S. trons

  19. INVESTIGATION OF ELECTROWETTING-BASED MICROFLUIDICS FOR REAL-TIME PCR

    E-Print Network [OSTI]

    Fair, Richard

    and glued together with a spacer to provide a fixed 170 µm gap. The substrates were glass and all electrodes electrode array lies in the region between the holes. The dimensions of the chip are 25 � 50 mm. RIGHT

  20. Oscillations with Co and Cu thickness of the current-perpendicular-to-plane giant magnetoresistance of a Co/Cu/Co,,001... trilayer

    E-Print Network [OSTI]

    Umerski, Andrey

    located at the ferromagnet/spacer inter- faces interfacial roughness . However, a fully quantitative current-in-plane geom- etry, the dimensions of the sample in the direction of the current are always

  1. Induced magnetism in Cu nanoparticles embedded in Co P. Swaminathan

    E-Print Network [OSTI]

    Weaver, John H.

    the effects of changing the nature of confinement to three dimensions by embedding Cu nanoparticles in a Co.1063/1.2806236 Nonmagnetic spacer layers grown between layers of magnetic materials exhibit an induced magnetic moment.1

  2. INSTITUTE OF PHYSICS PUBLISHING NANOTECHNOLOGY Nanotechnology 17 (2006) 54355440 doi:10.1088/0957-4484/17/21/025

    E-Print Network [OSTI]

    Ottino, Julio M.

    consisting of a gold core, a tunable silica spacer layer and an outermost gold shell, which is approximately, nanoshells of small dimensions offer advantages in terms of delivery to target sites in living tissues

  3. Theoretical analysis of strain and strain decay in InAs/GaAs,,001... multilayer quantum dot growth

    E-Print Network [OSTI]

    As or is assumed to change linearly from 50% at the bottom to 100% at the top. The exact QD dimensions GaAs spacer layers typically 20 nm . In these cases not only the effects of In migration

  4. CX-002429: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Echo Lake-Monroe Spacer-Damper ReplacementsCX(s) Applied: B1.3Date: 05/17/2010Location(s): King County, WashingtonOffice(s): Bonneville Power Administration

  5. Eur. Phys. J. D 9, 2528 (1999) THE EUROPEAN

    E-Print Network [OSTI]

    Brune, Harald

    -selected clusters from the gas phase [6], e.g., produces nanostructures of nearly uni- form dimensions. But, like the spatial correlation of island nucleation in a sequence of island and spacer layers in semiconductor

  6. Wide-angle perfect absorber/thermal emitter in the terahertz regime Marcus Diem,1,* Thomas Koschny,1,2 and C. M. Soukoulis1,2

    E-Print Network [OSTI]

    Soukoulis, Costas

    the nanostructure dimensions. The stability of the spectral features at high temperatures is tested by simulations a better stability. On top of the metal plate a spacer layer of silicon nitride SiN is deposited

  7. IEEE BCTM 2.1 On the Feasibility of few-THz Bipolar Transistors

    E-Print Network [OSTI]

    Rodwell, Mark J. W.

    Iw, Figure 1: HBT cross-section and critical dimensions. The emitter stripe extends a distance L, perpendicular to the figure. W, is the emitter junction width, Web the base-emitter sidewall spacer thickness

  8. Single Particle Spectroscopy Study of Metal-Film-Induced Tuning of Silver Nanoparticle Plasmon Resonances

    E-Print Network [OSTI]

    Kik, Pieter

    coupling between the nanoparticle and the metal film. When the thickness of a thin silica spacer layer and can localize visible radiation to subwavelength dimensions and thus control light-matter interactions

  9. Computer-controlled, variable-frequency power supply for driving multipole ion guides

    E-Print Network [OSTI]

    Zare, Richard N.

    in a parallel geometry within an insulating spacer. rf waveforms, which are 180° out of phase with respect parameters, including ge- ometries, pressures, aperture dimensions, voltages applied to electrostatic

  10. Magnetically induced splitting of a giant vortex state in a mesoscopic superconducting disk D. S. Golubovi,1

    E-Print Network [OSTI]

    Moshchalkov, Victor V.

    , whose dimensions are comparable to the supercon- ducting coherence length T and the penetration depth.4 and 1 nm, respectively. The triangle is separated from the supercon- ducting disk by a 2-nm Si spacer

  11. In-Flight Performance of the Balloon-Borne High Energy Focusing Telescope C. M. Hubert Chena

    E-Print Network [OSTI]

    ÂŻ Field of view = 13' Optics ÂŻ Wolter-I conical approximation ÂŻ Dimensions: 12 cm radius, 20 cm ÂŻ Effective area of all three optics modules combined, including spacer obscuration, but excluding atmospheric

  12. Off-axis electron holography of exchange-biased CoFeFeMn patterned nanostructures

    E-Print Network [OSTI]

    Dunin-Borkowski, Rafal E.

    structures, which consist of two ferromagnetic FM layers separated by a thin metallic or insulating spacer mechanisms in SV structures.8­11 With the recent trend toward reduced device dimensions

  13. CX-004256: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Replace Spacer Dampers Along the Dworshak PH-Dworshak Number 1 500-Kilovolt Transmission LineCX(s) Applied: B1.3Date: 10/05/2010Location(s): Clearwater County, IdahoOffice(s): Bonneville Power Administration

  14. Fabrication of Memristors with Poly-Crystalline Silicon Nanowires

    E-Print Network [OSTI]

    De Micheli, Giovanni

    - silicon nanowire, SiNWFET, spacer technique, polycrystalline silicon, poly-Si, ambipolar, memristor of device dimensions, new phenomena have been claimed to be responsible for the memristor behavior

  15. CX-001414: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Coyote Springs-Slatt #1: Spacer Damper ReplacementsCX(s) Applied: B1.3Date: 04/12/2010Location(s): Gilliam County, Oregon Office(s): Bonneville Power Administration

  16. Appendix C: Installation of Simpson Strong-Tie Storm Panel Screws The Storm Panel Screws are currently available in Hawai`i and meet the International

    E-Print Network [OSTI]

    Wang, Yuqing

    are prepared before installation by following the four P's: 1) Precut the panels to the proper dimensions) Pull off the panel. 6) Adjust screw penetrations so that the spacer between the top set of screw

  17. Plan for shell + sensor New sensors calibration

    E-Print Network [OSTI]

    Hone, James

    ) Shells arrive Verify dimensions Remove ICRH chamber Build Cu Plas mount Install Cu Plasma Run Cu Plasma Wiki for progress Make HDA mounts VF coil spacer blocks Fix upper OH outer coil GDC chamber heater

  18. CX-002532: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Spacer Damper Replacements on the McNary-Coyote Springs Number-1 Transmission LineCX(s) Applied: B1.3Date: 05/26/2010Location(s): MorrowCounty, OregonOffice(s): Bonneville Power Administration

  19. CX-001944: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Replace Spacer Dampers Along the Grizzly - Captain Jack No. 1 500 Kilovolt Transmission LineCX(s) Applied: B1.3Date: 04/21/2010Location(s): Crook County, OregonOffice(s): Bonneville Power Administration

  20. CX-001183: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Replace Rock Creek-John Day Number 1 SpacersCX(s) Applied: B1.3Date: 03/09/2010Location(s): Klickitat County, WashingtonOffice(s): Bonneville Power Administration

  1. J. Phys. III France 6 (1996) 337-347 MARCH 1996, PAGE 337 The C.A.T. Pixel Proportional Gas Counter Detector

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    energy range in order to cover the demand of various experiments, one or two dimensions large between the electrodes; this spacer is drilled and this hole and the cathode hole are aligned. We obtain

  2. Submicron-diameter semiconductor pillar microcavities with very high quality factors

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    dimensions of space, through Bragg reflection in the longi- tudinal direction and through total internalAs/AlGaAs Bragg mirrors, surrounding the cavity spacer, are corrugated because of partial oxidation of the Al

  3. nature nanotechnology | VOL 4 | JULY 2009 | www.nature.com/naturenanotechnology 401 research highlights

    E-Print Network [OSTI]

    Richards-Kortum, Rebecca

    are equally spaced. Although the electrons in graphene are also confined to two dimensions, they differ spacer and a head group that can be a fluorescent molecule, a drug or a peptide that binds to plaques

  4. 722 IEEE ELECTRON DEVICE LETTERS, VOL. 23, NO. 12, DECEMBER 2002 Low-Frequency Noise Characteristics

    E-Print Network [OSTI]

    Bokor, Jeffrey

    dimensions are scaled down [2]. Re- cently, fully depleted (FD) silicon-on-insulator (SOI) devices have been with the spacer lithography process [6], [7]. Following a sacrificial oxidation of the fin sidewalls, a 2.1-nm

  5. Shielded Payload Containers Will Enhance the Safety and

    E-Print Network [OSTI]

    ) · External dimensions = 55-gal drum, internal capacity for a standard 30-gallon drum · Transport in 3-pack within ICV · 6.5 inch crush of bottom end axial dunnage and aluminum honeycomb spacer equates

  6. Ioffe Institute QWR/QD.03i 7th Int. Symp. "Nanostructures: Physics and Technology"

    E-Print Network [OSTI]

    Nabben, Reinhard

    in correlated or anticorrelated way for thinner and thicker spacer layers, respectively. By monitoring of sharp.e. semiconductor structures providing confinement in all three dimensions, present an ultimate limit of size

  7. Sub-30 nm InAs Quantum-Well MOSFETs with Self-aligned Metal Contacts and Sub-1 nm EOT HfO2 Insulator

    E-Print Network [OSTI]

    del Alamo, JesĂşs A.

    performance, ability to harmoniously scale down to sub-30 nm gate length dimensions and CMOS. MOSFETs with gate length dimensions in the 20-30 nm range and outstanding electrical characteristics that yields an undercut spacer is etched through highly

  8. CX-004257: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Replace Spacer Dampers Along the Slatt-John Day Number 1 500-Kilovolt Transmission LineCX(s) Applied: B1.3Date: 10/04/2010Location(s): Sherman County, OregonOffice(s): Bonneville Power Administration

  9. 1 Copyright 2006 by ASME Proceedings of ICNMM2006

    E-Print Network [OSTI]

    Kandlikar, Satish

    spacer strips to create a channel that was 10 mm by 0.5 mm. Similarity, Niida et al. used an observation) these are categorized as minichannels. In the present fouling studies microchannels are being used which have dimensions

  10. CX-007361: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Ashe-Marion #2 Spacer Replacements CX(s) Applied: B1.3 Date: 11/29/2011 Location(s): Oregon, Oregon, Washington, Oregon, Oregon Offices(s): Bonneville Power Administration

  11. Controlling the Competition between Optically Induced Ultrafast Spin-Flip Scattering and Spin Transport in Magnetic Multilayers

    E-Print Network [OSTI]

    Aeschlimann, Martin

    . In this work, we use multilayers of Fe and Ni with different metals and insulators as the spacer material and nanometer dimensions, making it very challenging to understand these processes at a fundamental level

  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. Physica E 12 (2002) 487490 www.elsevier.com/locate/physe

    E-Print Network [OSTI]

    Ludwig-Maximilians-Universität, München

    is surrounded by spacer, donor and cap layers on both sides [4]. Processing three-dimensional nano- structures) 487­490 Fig. 1. (a) Freely suspended hallbar with dimensions l=3 m; w =600 nm and d=130 nm. (b

  14. Synthesis and Structure of LaSr2CuTiO6.5: A New Oxygen-Deficient Ruddlesden-Popper Phase

    E-Print Network [OSTI]

    Marks, Laurence D.

    has yielded a large number of materials containing CuO2 planes interleaved by spacer layers either of these cations exhibit similar lattice dimensions. Thus these nets (or 2-D planes) can

  15. Mechanical and electromechanical characterization of a novel composite cellular solid for orthopaedic applications

    E-Print Network [OSTI]

    Jaumard, Nicolas V.

    2008-01-01T23:59:59.000Z

    ) sintered balls (permission to use requested) Figure 2-12. Photographs of an artificial intervertebral disc with porous tantalum surfaces (permission to use requested) Figure 2-13. Photographs of Tantalum spacers of various sizes and shapes... in modifying the structure of a material that is already satisfying. This technique has been exploited to create tantalum foam, titanium mesh, and cobalt-chromium sponge to serve as an osteoconductive spacer in spinal fusion procedures [57...

  16. Electrically injected visible vertical cavity surface emitting laser diodes

    DOE Patents [OSTI]

    Schneider, R.P.; Lott, J.A.

    1994-09-27T23:59:59.000Z

    Visible laser light output from an electrically injected vertical cavity surface emitting laser (VSCEL) diode is enabled by the addition of phase-matching spacer layers on either side of the active region to form the optical cavity. The spacer layers comprise InAlP which act as charge carrier confinement means. Distributed Bragg reflector layers are formed on either side of the optical cavity to act as mirrors. 5 figs.

  17. VOLUME 76, NUMBER 8 P H Y S I C A L R E V I E W L E T T E R S 19 FEBRUARY 1996 Spin Splitting of Single 0D Impurity States in Semiconductor Heterostructure Quantum Wells

    E-Print Network [OSTI]

    Reed, Mark

    cm23 Si doped GaAs contact, a 15 nm undoped GaAs spacer layer, a 8.5 nm undoped Al0.27Ga0.73As bottom GaAs spacer layer, and a 1.8 3 1018 cm23 Si doped GaAs top contact. Square mesas with lateral dimensions from 2 to 64 mm are fabricated using standard photolithography techniques. Two terminal I V

  18. A Low-Cost 1 GHz Highpass Low-Noise Amplifier Steven W. Ellingson

    E-Print Network [OSTI]

    Ellingson, Steven W.

    sections which are used as spacers between (1) and (2). The dimensions of the di- mensions of the raw PCB MHz Input VSWR 1.9:1 Dimensions 74 mm Ă? 25 mm Ă? 20 mm Connectors SMA female Power 96 mA @ 15 VDC (12 10: Spacer section, after being cut away from the raw PCB and milled out. The LNA is assembled

  19. DEVELOPMENT OF AN FDTD TOOL FOR MODELING OF DISPERSIVE MEDIA

    E-Print Network [OSTI]

    Koledintseva, Marina Y.

    dielectric spacer with dimensions of 60x10x0.6 mm3 . The EZ-FDTD model geometry is shown in Figure 4. Two. This is a structure with two ports on a double-sided copper clad FR-4 dielectric plate having the dimensions 200x150x1 copper plates were modeled as PEC, and the spacer was modeled as the Lorentzian dielectric

  20. Negatively and positively charged excitons in GaAs/AlxGa1 xAs quantum wells Gleb Finkelstein, Hadas Shtrikman, and Israel Bar-Joseph

    E-Print Network [OSTI]

    Finkelstein, Gleb

    substantially in two dimensions. Indeed, X was observed in CdTe/CdxZn1 xTe quantum wells QW's ,3 and recently- lattice, a 200-Ă? QW, an undoped spacer layer, a Si doped region, and a cap layer. The n-type samples have a spacer width of either 500 or 1500 Ă? and are doped an additional uniform doping is introduced near

  1. Provided for non-commercial research and educational use only. Not for reproduction, distribution or commercial use.

    E-Print Network [OSTI]

    Heiblum, Mordehai "Moty"

    GaAseGaAs heterointerface (IR) 126 6.3.2.4 Alloy scattering in the AlGaAs spacer 126 6.3.2.5 Acoustic phonon scattering 126 of high-mobility 2DEG structures 128 6.4.1 Buffer layer 128 6.4.2 Spacer layer 128 6.4.3 Doping efficiency with the greatest precision in the laboratory, constricting the world to two and one dimensions with atomic

  2. CFD Simulations of a Flow Mixing and Heat Transfer Enhancement in an Advanced LWR Nuclear Fuel Assembly

    SciTech Connect (OSTI)

    In, Wang-Kee; Chun, Tae-Hyun; Shin, Chang-Hwan; Oh, Dong-Seok [Korea Atomic Energy Research Institute, 1045 Daedeokdaero, Yuseong-Gu, Daejeon, Korea 305-353 (Korea, Republic of)

    2007-07-01T23:59:59.000Z

    A computational fluid dynamics (CFD) analysis has been performed to investigate a flow-mixing and heat-transfer enhancement caused by a mixing-vane spacer in a LWR fuel assembly which is a rod bundle. This paper presents the CFD simulations of a flow mixing and heat transfer in a fully heated 5x5 array of a rod bundle with a split-vane and hybrid-vane spacer. The CFD prediction at a low Reynolds number of 42,000 showed a reasonably good agreement of the initial heat transfer enhancement with the measured one for a partially heated experiment using a similar spacer structure. The CFD simulation also predicted the decay rate of a normalized Nusselt number downstream of the split-vane spacer which agrees fairly well with those of the experiment and the correlation. The CFD calculations for the split vane and hybrid vane at the LWR operating conditions(Re = 500,000) predicted hot fuel spots in a streaky structure downstream of the spacer, which occurs due to the secondary flow occurring in an opposite direction near the fuel rod. However, the split-vane and hybrid-vane spacers are predicted to significantly enhance the overall heat transfer of a LWR nuclear fuel assembly. (authors)

  3. phenix.mr_rosetta: a new tool for difficult molecular replacement problems

    SciTech Connect (OSTI)

    Terwilliger, Thomas C [Los Alamos National Laboratory; Read, Randy [UNIV OF CAMBRIDGE; De Maio, Frank [UNIV OF WASHINGTON; Baker, David [UNIV OF WASHINGTON

    2011-01-12T23:59:59.000Z

    The PHENIX development team is working with the Baker laboratory at the University of Washington to combine the power of Rosetta structure modeling with PHENIX automated molecular replacement (MR), model-building, density modification, and refinement. The basic idea is to find MR solutions with phenix. automr, rebuild them with Rosetta, including electron density map information, then rebuild those models with phenix. autobuild. The combination of Rosetta rebuilding and phenix rebuilding is the key part of this method. MR solutions are found with phenix. automr (Phaser), scored with LLG (optionally following Rosetta relaxation), the best solutions are picked and rebuilt with Rosetta including map information, the resulting models are scored with Rosetta, and then rescored with LLG, and the top models are rebuilt with phenix. autobuild. It can be very useful for cases where the search model used in molecular replacement is slightly too distant to rebuild successfully with phenix. autobuild. It can also be useful in cases where the model is too distant to even find a molecular replacement solution, and prerefinement with Rosetta can yield an improved search model.

  4. On-Road Use of Fischer-Tropsch Diesel Blends

    SciTech Connect (OSTI)

    Nigel Clark; Mridul Gautam; Donald Lyons; Chris Atkinson; Wenwei Xie; Paul Norton; Keith Vertin; Stephen Goguen; James Eberhardt

    1999-04-26T23:59:59.000Z

    Alternative compression ignition engine fuels are of interest both to reduce emissions and to reduce U.S. petroleum fuel demand. A Malaysian Fischer-Tropsch gas-to-liquid fuel was compared with California No.2 diesel by characterizing emissions from over the road Class 8 tractors with Caterpillar 3176 engines, using a chassis dynamometer and full scale dilution tunnel. The 5-Mile route was employed as the test schedule, with a test weight of 42,000 lb. Levels of oxides of nitrogen (NO{sub x}) were reduced by an average of 12% and particulate matter (PM) by 25% for the Fischer-Tropsch fuel over the California diesel fuel. Another distillate fuel produced catalytically from Fischer-Tropsch products originally derived from natural gas by Mossgas was also compared with 49-state No.2 diesel by characterizing emissions from Detroit Diesel 6V-92 powered transit buses, three of them equipped with catalytic converters and rebuilt engines, and three without. The CBD cycle was employed as the test schedule, with a test weight of 33,050 lb. For those buses with catalytic converters and rebuilt engines, NO x was reduced by 8% and PM was reduced by 31% on average, while for those buses without, NO x was reduced by 5% and PM was reduced by 20% on average. It is concluded that advanced compression ignition fuels from non-petroleum sources can offer environmental advantages in typical line haul and city transit applications.

  5. Influence of the Fin on Two-Dimensional Characteristics of Dispersed Flow With Wall Liquid Film in the Vicinity of Obstacle

    SciTech Connect (OSTI)

    Stosic, Zoran V. [Framatome ANP GmbH, P.O. Box 3220, 91050 Erlangen (Germany); Stevanovic, Vladimir D. [University of Belgrade, Kraljice Marije 16, 11000 Belgrade, Serbia and Montenegro (Yugoslavia); Serizawa, Akimi [Kyoto University, Kumatori, Sennan, Osaka 590-0494 (Japan)

    2002-07-01T23:59:59.000Z

    Spacers have positive effects on the heat transfer enhancement and critical heat flux (CHF) increase downstream of their location in the boiling channel. These effects are further increased by the inclusion of the fin on the spacer rear edge. Numerical simulation of a separation in a high void gas phase and dispersed droplets flow around a spacer, with a liquid film flowing on the wall, is performed. Mechanisms leading to the CHF increase due to the two-phase flow separation and liquid film thickening downstream the spacer are demonstrated. Numerical simulations of gas phase, entrained droplets and wall liquid film flows were performed with the three-fluid model and with the application of the high order numerical scheme for the liquid film surface interface tracking. Predicted is a separation of gas and entrained droplets streams around the spacer without and with a fin inclined 30 and 60 degrees to the wall, as well as a change of wall liquid film thickness in the vicinity of spacer. Results of liquid film dynamic behaviour are compared with the recently obtained experimental results. Multi-dimensional characteristics of surface waves on the liquid film were measured with newly developed ultrasonic transmission technique in a 3 3 rod bundle test section with air-water flow under atmospheric conditions. Obtained numerical results are in good agreement with experimental observations. The presented investigation gives insight into the complex mechanisms of separated two-phase flow with wall liquid film around the spacer and support thermal-hydraulic design and optimisation of flow obstacles in various thermal equipment. (authors)

  6. Seal assembly

    DOE Patents [OSTI]

    Johnson, Roger Neal (Hagaman, NY); Longfritz, William David (Fonda, NY)

    2001-01-01T23:59:59.000Z

    A seal assembly that seals a gap formed by a groove comprises a seal body, a biasing element, and a connection that connects the seal body to the biasing element to form the seal assembly. The seal assembly further comprises a concave-shaped center section and convex-shaped contact portions at each end of the seal body. The biasing element is formed from an elastic material and comprises a convex-shaped center section and concave-shaped biasing zones that are opposed to the convex-shaped contact portions. The biasing element is adapted to be compressed to change a width of the seal assembly from a first width to a second width that is smaller than the first width. In the compressed state, the seal assembly can be disposed in the groove. After release of the compressing force, the seal assembly expands. The contact portions will move toward a surface of the groove and the biasing zones will move into contact with another surface of the groove. The biasing zones will bias the contact portions of the seal body against the surface of the groove.

  7. Segmented lasing tube for high temperature laser assembly

    DOE Patents [OSTI]

    Sawicki, Richard H. (Danville, CA); Alger, Terry W. (Tracy, CA); Finucane, Raymond G. (Pleasanton, CA); Hall, Jerome P. (Livermore, CA)

    1996-01-01T23:59:59.000Z

    A high temperature laser assembly capable of withstanding operating temperatures in excess of 1500.degree. C. is described comprising a segmented cylindrical ceramic lasing tube having a plurality of cylindrical ceramic lasing tube segments of the same inner and outer diameters non-rigidly joined together in axial alignment; insulation of uniform thickness surround the walls of the ceramic lasing tube; a ceramic casing, preferably of quartz, surrounding the insulation; and a fluid cooled metal jacket surrounds the ceramic casing. In a preferred embodiment, the inner surface of each of the ceramic lasing tube segments are provided with a pair of oppositely spaced grooves in the wall thereof parallel to the center axis of the segmented cylindrical ceramic lasing tube, and both of the grooves and the center axis of the segmented cylindrical ceramic lasing tube lie in a common plane, with the grooves in each ceramic lasing tube segment in circumferential alignment with the grooves in the adjoining ceramic lasing tube segments; and one or more ceramic plates, all lying in a common plane to one another and with the central axis of the segmented ceramic lasing tube, are received in the grooves to provide additional wall area in the segmented ceramic lasing tube for collision and return to ground state of metastable metal atoms within the segmented ceramic lasing tube.

  8. Chains of quantum dot molecules grown on Si surface pre-patterned by ion-assisted nanoimprint lithography

    SciTech Connect (OSTI)

    Smagina, Zh. V.; Stepina, N. P., E-mail: stepina@isp.nsc.ru; Zinovyev, V. A.; Kuchinskaya, P. A. [Rzhanov Institute of Semiconductor Physics, Siberian Branch of the Russian Academy of Sciences, Lavrenteva 13, 630090 Novosibirsk (Russian Federation); Novikov, P. L.; Dvurechenskii, A. V. [Rzhanov Institute of Semiconductor Physics, Siberian Branch of the Russian Academy of Sciences, Lavrenteva 13, 630090 Novosibirsk (Russian Federation); Novosibirsk State University, Pirogova, 2, 630090 Novosibirsk (Russian Federation)

    2014-10-13T23:59:59.000Z

    An original approach based on the combination of nanoimprint lithography and ion irradiation through mask has been developed for fabrication of large-area periodical pattern on Si(100). Using the selective etching of regions amorphized by ion irradiation ordered structures with grooves and ridges were obtained. The shape and depth of the relief were governed by ion energy and by the number of etching stages as well. Laterally ordered chains of Ge quantum dots were fabricated by molecular beam epitaxy of Ge on the pre-patterned Si substrates. For small amount of Ge deposited chains contain separate quantum dot molecules. The increase of deposition amount leads to overlapping of quantum dot molecules with formation of dense homogeneous chains of quantum dots. It was shown that the residual irradiation-induced bulk defects underneath the grooves suppress nucleation of Ge islands at the bottom of grooves. On pre-patterned substrates with whole defect regions, etched quantum dots grow at the bottom of grooves. The observed location of Ge quantum dots is interpreted in terms of local strain-mediated surface chemical potential which controls the sites of islands nucleation. The local chemical potential is affected by additional strain formed by the residual defects. It was shown by molecular dynamics calculations that these defects form the compressive strain at the bottom of grooves.

  9. Coordinate measuring machine test standard apparatus and method

    DOE Patents [OSTI]

    Bieg, L.F.

    1994-08-30T23:59:59.000Z

    A coordinate measuring machine test standard apparatus and method are disclosed which includes a rotary spindle having an upper phase plate and an axis of rotation, a kinematic ball mount attached to the phase plate concentric with the axis of rotation of the phase plate, a groove mounted at the circumference of the phase plate, and an arm assembly which rests in the groove. The arm assembly has a small sphere at one end and a large sphere at the other end. The small sphere may be a coordinate measuring machine probe tip and may have variable diameters. The large sphere is secured in the kinematic ball mount and the arm is held in the groove. The kinematic ball mount includes at least three mounting spheres and the groove is an angular locating groove including at least two locking spheres. The arm may have a hollow inner core and an outer layer. The rotary spindle may be a ratio reducer. The device is used to evaluate the measuring performance of a coordinate measuring machine for periodic recertification, including 2 and 3 dimensional accuracy, squareness, straightness, and angular accuracy. 5 figs.

  10. Debris-less method and apparatus for forming apertures in hollow metallic articles

    DOE Patents [OSTI]

    Jordan, C.L.; Chodelka, E.J.

    1980-06-24T23:59:59.000Z

    This invention is a method for forming an aperture in a wall of a hollow metallic article without introducing metallic debris therein. In a typical operation, an annular groove is formed in an exterior portion of the wall. The groove defines an annular wall segment, and the bottom of the groove is shaped to slope downwardly away from the segment to form a tapered annular web which connects the segment to the wall. Any suitable coupling is attached to the outer face of the segment, as by welding. Pull then is applied to the coupling to effect circumferential breakage of the web, thus forming a removable single-piece wall fragment consisting of the web and segment. The fragment and the coupling member attached thereto then are removed from the wall.

  11. Correlation between surface topography and slippage: a Molecular Dynamics study

    E-Print Network [OSTI]

    Nikita Tretyakov; Marcus Müller

    2013-02-21T23:59:59.000Z

    Using Molecular Dynamics simulations of a polymer liquid flowing past flat and patterned surfaces, we investigate the influence of corrugation, wettability and pressure on slippage and friction at the solid-liquid interface. For one-dimensional, rectangular grooves, we observe a gradual crossover between the Wenzel state, where the liquid fills the grooves, and the Cassie state, where the corrugation supports the liquid and the grooves are filled with vapor. Using two independent flow set-ups, we characterize the near-surface flow by the slip length, $\\delta$, and the position, $z_\\textrm{h}$, at which viscous and frictional stresses are balanced according to Navier's partial slip boundary condition. This hydrodynamic boundary position depends on the pressure inside the channel and may be located above the corrugated surface. In the Cassie state, we observe that the edges of the corrugation contribute to the friction.

  12. Monolithic laser diode array with one metalized sidewall

    DOE Patents [OSTI]

    Freitas, Barry L. (Livermore, CA); Skidmore, Jay A. (Livermore, CA); Wooldridge, John P. (Livermore, CA); Emanuel, Mark A. (Livermore, CA); Payne, Stephen A. (Castro Valley, CA)

    2001-01-01T23:59:59.000Z

    A monolithic, electrically-insulating substrate that contains a series of notched grooves is fabricated. The substrate is then metalized so that only the top surface and one wall adjacent to the notch are metalized. Within the grooves is located a laser bar, an electrically-conductive ribbon or contact bar and an elastomer which secures/registers the laser bar and ribbon (or contact bar) firmly along the wall of the groove that is adjacent to the notch. The invention includes several embodiments for providing electrical contact to the corresponding top surface of the adjacent wall. In one embodiment, after the bar is located in the proper position, the electrically conductive ribbon is bent so that it makes electrical contact with the adjoining metalized top side of the heatsink.

  13. Boltless flange

    DOE Patents [OSTI]

    Kirkham, R.J.

    1997-04-15T23:59:59.000Z

    A boltless, reusable flange system for joining metal piping includes a circular, wedge-shaped tongue on an upper flange for mating with a groove containing a fusible alloy in a lower flange. The lower flange includes a heating element for melting the fusible alloy, and a thermocouple device to sense the alloy temperature. Heat can be controlled and supplied from a remote source and monitored by a remote temperature indicator. The upper flange is positioned above the lower flange, tongue and groove aligned, and the lower flange is heated until the fusible alloy melts to allow the upper tongue to settle down within the lower groove. Upon removal of the heat, the alloy hardens to further bring the two flanges together in a solid and sealed couple, compressing an optional gasket. 4 figs.

  14. Boltless flange

    DOE Patents [OSTI]

    Kirkham, Robert J. (Blackfoot, ID)

    1997-01-01T23:59:59.000Z

    A boltless, reusable flange system for joining metal piping includes a circular, wedge-shaped tongue on an upper flange for mating with a groove containing a fusible alloy in a lower flange. The lower flange includes a heating element for melting the fusible alloy, and a thermocouple device to sense the alloy temperature. Heat can be controlled and supplied from a remote source and monitored by a remote temperature indicator. The upper flange is positioned above the lower flange, tongue and groove aligned, and the lower flange is heated until the fusible alloy melts to allow the upper tongue to settle down within the lower groove. Upon removal of the heat, the alloy hardens to further bring the two flanges together in a solid and sealed couple, compressing an optional gasket.

  15. Element of an inductive coupler

    DOE Patents [OSTI]

    Hall, David R.; Fox, Joe

    2006-08-15T23:59:59.000Z

    An element for an inductive coupler in a downhole component comprises magnetically conductive material, which is disposed in a recess in annular housing. The magnetically conductive material forms a generally circular trough. The circular trough comprises an outer generally U-shaped surface, an inner generally U-shaped surface, and two generally planar surfaces joining the inner and outer surfaces. The element further comprises pressure relief grooves in at least one of the surfaces of the circular trough. The pressure relief grooves may be scored lines. Preferably the pressure relief grooves are parallel to the magnetic field generated by the magnetically conductive material. The magnetically conductive material is selected from the group consisting of soft iron, ferrite, a nickel iron alloy, a silicon iron alloy, a cobalt iron alloy, and a mu-metal. Preferably, the annular housing is a metal ring.

  16. First results from a next-generation off-plane X-ray diffraction grating

    E-Print Network [OSTI]

    McEntaffer, Randall; Schultz, Ted; Gantner, Brennan; Tutt, James; Holland, Andrew; O'Dell, Stephen; Gaskin, Jessica; Kolodziejczak, Jeffrey; Zhang, William W; Chan, Kai-Wing; Biskach, Michael; McClelland, Ryan; Iazikov, Dmitri; Wang, Xinpeng; Koecher, Larry

    2013-01-01T23:59:59.000Z

    Future NASA X-ray spectroscopy missions will require high throughput, high resolution grating spectrometers. Off-plane reflection gratings are capable of meeting the performance requirements needed to realize the scientific goals of these missions. We have identified a novel grating fabrication method that utilizes common lithographic and microfabrication techniques to produce the high fidelity groove profile necessary to achieve this performance. Application of this process has produced an initial pre-master that exhibits a radial (variable line spacing along the groove dimension), high density (>6000 grooves/mm), laminar profile. This pre-master has been tested for diffraction efficiency at the BESSY II synchrotron light facility and diffracts up to 55% of incident light into usable spectral orders. Furthermore, tests of spectral resolving power show that these gratings are capable of obtaining resolutions well above 1300 ($\\lambda/\\Delta\\lambda$) with limitations due to the test apparatus, not the gratings...

  17. Time-resolved measurement of single pulse femtosecond laser-induced periodic surface structure formation

    E-Print Network [OSTI]

    Kafka, K R P; Li, H; Yi, A; Cheng, J; Chowdhury, E A

    2015-01-01T23:59:59.000Z

    Time-resolved diffraction microscopy technique has been used to observe the formation of laser-induced periodic surface structures (LIPSS) from the interaction of a single femtosecond laser pulse (pump) with a nano-scale groove mechanically formed on a single-crystal Cu substrate. The interaction dynamics (0-1200 ps) was captured by diffracting a time-delayed, frequency-doubled pulse from nascent LIPSS formation induced by the pump with an infinity-conjugate microscopy setup. The LIPSS ripples are observed to form sequentially outward from the groove edge, with the first one forming after 50 ps. A 1-D analytical model of electron heating and surface plasmon polariton (SPP) excitation induced by the interaction of incoming laser pulse with the groove edge qualitatively explains the time-evloution of LIPSS formation.

  18. Downhole tool

    DOE Patents [OSTI]

    Hall, David R.; Muradov, Andrei; Pixton, David S.; Dahlgren, Scott Steven; Briscoe, Michael A.

    2007-03-20T23:59:59.000Z

    A double shouldered downhole tool connection comprises box and pin connections having mating threads intermediate mating primary and secondary shoulders. The connection further comprises a secondary shoulder component retained in the box connection intermediate a floating component and the primary shoulders. The secondary shoulder component and the pin connection cooperate to transfer a portion of makeup load to the box connection. The downhole tool may be selected from the group consisting of drill pipe, drill collars, production pipe, and reamers. The floating component may be selected from the group consisting of electronics modules, generators, gyroscopes, power sources, and stators. The secondary shoulder component may comprises an interface to the box connection selected from the group consisting of radial grooves, axial grooves, tapered grooves, radial protrusions, axial protrusions, tapered protrusions, shoulders, and threads.

  19. Load responsive multilayer insulation performance testing

    SciTech Connect (OSTI)

    Dye, S.; Kopelove, A. [Quest Thermal Group, 6452 Fig Street Suite A, Arvada, CO 80004 (United States); Mills, G. L. [Ball Aerospace and Technologies Corp, 1600 Commerce Street, Boulder, CO 80301 (United States)

    2014-01-29T23:59:59.000Z

    Cryogenic insulation designed to operate at various pressures from one atmosphere to vacuum, with high thermal performance and light weight, is needed for cryogenically fueled space launch vehicles and aircraft. Multilayer insulation (MLI) performs well in a high vacuum, but the required vacuum shell for use in the atmosphere is heavy. Spray-on foam insulation (SOFI) is often used in these systems because of its light weight, but can have a higher heat flux than desired. We report on the continued development of Load Responsive Multilayer Insulation (LRMLI), an advanced thermal insulation system that uses dynamic beam discrete spacers that provide high thermal performance both in atmosphere and vacuum. LRMLI consists of layers of thermal radiation barriers separated and supported by micromolded polymer spacers. The spacers have low thermal conductance, and self-support a thin, lightweight vacuum shell that provides internal high vacuum in the insulation. The dynamic load responsive spacers compress to support the external load of a vacuum shell in one atmosphere, and decompress under reduced atmospheric pressure for lower heat leak. Structural load testing was performed on the spacers with various configurations. LRMLI was installed on a 400 liter tank and boil off testing with liquid nitrogen performed at various chamber pressures from one atmosphere to high vacuum. Testing was also performed with an MLI blanket on the outside of the LRMLI.

  20. Experimental investigation of a thermionic converter with developed surface electrodes

    SciTech Connect (OSTI)

    Luke, James R.; El-Genk, Mohamed S.; Adrian, John M. [Institute for Space and Nuclear Power Studies/Chemical and Nuclear Engineering Department University of New Mexico, Albuquerque, New Mexico 87131 (United States)

    1997-01-10T23:59:59.000Z

    A thermionic converter with developed planar electrode surfaces is designed and tested. One of the electrodes has concentric circular grooves cut into its surface, while the other electrode surface is smooth. The grooves are 0.5 mm deep and 0.5 mm wide, having lands that are 1.0 mm wide. The experimental setup is flexible so that either the smooth or developed surface electrode can be operated as the emitter, with the other operating as the collector. The I-V characteristics and power output are compared for the two electrode arrangements.

  1. Experimental investigation of a thermionic converter with developed surface electrodes

    SciTech Connect (OSTI)

    Luke, J.R.; El-Genk, M.S.; Adrian, J.M. [Institute for Space and Nuclear Power Studies/Chemical and Nuclear Engineering Department University of New Mexico, Albuquerque, New Mexico87131 (United States)

    1997-01-01T23:59:59.000Z

    A thermionic converter with developed planar electrode surfaces is designed and tested. One of the electrodes has concentric circular grooves cut into its surface, while the other electrode surface is smooth. The grooves are 0.5 mm deep and 0.5 mm wide, having lands that are 1.0 mm wide. The experimental setup is flexible so that either the smooth or developed surface electrode can be operated as the emitter, with the other operating as the collector. The I-V characteristics and power output are compared for the two electrode arrangements. {copyright} {ital 1997 American Institute of Physics.}

  2. Electrically heated particulate filter embedded heater design

    DOE Patents [OSTI]

    Gonze, Eugene V.; Chapman, Mark R.

    2014-07-01T23:59:59.000Z

    An exhaust system that processes exhaust generated by an engine is provided. The system generally includes a particulate filter (PF) that filters particulates from the exhaust wherein an upstream end of the PF receives exhaust from the engine and wherein an upstream surface of the particulate filter includes machined grooves. A grid of electrically resistive material is inserted into the machined grooves of the exterior upstream surface of the PF and selectively heats exhaust passing through the grid to initiate combustion of particulates within the PF.

  3. Trap seal for open circuit liquid cooled turbines

    DOE Patents [OSTI]

    Grondahl, Clayton M. (Clifton Park, NY); Germain, Malcolm R. (Ballston Lake, NY)

    1980-01-01T23:59:59.000Z

    An improved trap seal for open circuit liquid cooled turbines is disclosed. The trap seal of the present invention includes an annular recess formed in the supply conduit of cooling channels formed in the airfoil of the turbine buckets. A cylindrical insert is located in the annular recesses and has a plurality of axial grooves formed along the outer periphery thereof and a central recess formed in one end thereof. The axial grooves and central recess formed in the cylindrical insert cooperate with the annular recess to define a plurality of S-shaped trap seals which permit the passage of liquid coolant but prohibit passage of gaseous coolant.

  4. Apparatus for pumping liquids at or below the boiling point

    DOE Patents [OSTI]

    Bingham, Dennis N. (Idaho Falls, ID)

    2002-01-01T23:59:59.000Z

    A pump comprises a housing having an inlet and an outlet. An impeller assembly mounted for rotation within the housing includes a first impeller piece having a first mating surface thereon and a second impeller piece having a second mating surface therein. The second mating surface of the second impeller piece includes at least one groove therein so that at least one flow channel is defined between the groove and the first mating surface of the first impeller piece. A drive system operatively associated with the impeller assembly rotates the impeller assembly within the housing.

  5. Near-perfect diffraction grating rhomb

    DOE Patents [OSTI]

    Wantuck, Paul J. (Santa Fe, NM)

    1990-01-01T23:59:59.000Z

    A near-perfect grating rhomb enables an output beam to be diffracted to an angle offset from the input beam. The correcting grating is tipped relative to the dispersing grating to provide the offset angle. The correcting grating is further provided with a groove spacing which differs from the dispersing grating groove space by an amount effective to substantially remove angular dispersion in the output beam. A near-perfect grating rhomb has the capability for selective placement in a FEL to suppress sideband instabilities arising from the FEL.

  6. System for inspection of stacked cargo containers

    DOE Patents [OSTI]

    Derenzo, Stephen (Pinole, CA)

    2011-08-16T23:59:59.000Z

    The present invention relates to a system for inspection of stacked cargo containers. One embodiment of the invention generally comprises a plurality of stacked cargo containers arranged in rows or tiers, each container having a top, a bottom a first side, a second side, a front end, and a back end; a plurality of spacers arranged in rows or tiers; one or more mobile inspection devices for inspecting the cargo containers, wherein the one or more inspection devices are removeably disposed within the spacers, the inspection means configured to move through the spacers to detect radiation within the containers. The invented system can also be configured to inspect the cargo containers for a variety of other potentially hazardous materials including but not limited to explosive and chemical threats.

  7. Solid polymeric electrolytes for lithium batteries

    DOE Patents [OSTI]

    Angell, Charles A.; Xu, Wu; Sun, Xiaoguang

    2006-03-14T23:59:59.000Z

    Novel conductive polyanionic polymers and methods for their preparion are provided. The polyanionic polymers comprise repeating units of weakly-coordinating anionic groups chemically linked to polymer chains. The polymer chains in turn comprise repeating spacer groups. Spacer groups can be chosen to be of length and structure to impart desired electrochemical and physical properties to the polymers. Preferred embodiments are prepared from precursor polymers comprising the Lewis acid borate tri-coordinated to a selected ligand and repeating spacer groups to form repeating polymer chain units. These precursor polymers are reacted with a chosen Lewis base to form a polyanionic polymer comprising weakly coordinating anionic groups spaced at chosen intervals along the polymer chain. The polyanionic polymers exhibit high conductivity and physical properties which make them suitable as solid polymeric electrolytes in lithium batteries, especially secondary lithium batteries.

  8. Quantification of disturbance energy due to conductor motion and stability analysis of superconducting composite wire

    SciTech Connect (OSTI)

    Tsukamoto, O.; Takao, T.; Honjo, S.

    1989-03-01T23:59:59.000Z

    One of the most intricate disturbances causing quenches in high-current-density superconducting magnets is an abrupt conductor motion. There have been very few papers investigating the disturbance energy of the conductor motion and its generally understood that its quantification is very difficult. The authors have proposed a model to quantify the disturbance energy due to conductor motion. The model relates the disturbance energy to mechanical properties of a conductor, electromagnetic force and winding structure. In the paper, stability of a superconducting composite conductor subject to an abrupt conductor motion is analyzed based on the proposed model. It is pointed out that the stability of the conductor is improved by decreasing distance between spacers placed between the conductors. However, it is also pointed out that there is a limit to the improvement of the stability of decreasing the spacer distance, because of limited accuracies of the conductor and spacer dimensions.

  9. CAT reconstruction and potting comparison of a LMFBR fuel bundle

    SciTech Connect (OSTI)

    Betten, P.R.; Tow, D.M.

    1984-04-01T23:59:59.000Z

    A standard Liquid Metal Fast Breeder Reactor (LMFBR) subassembly used in the Experimental Breeder Reactor II (EBR-II) was investigated, by remote techniques, for fuel bundle distortion by both nondestructive and destructive methods, and the results from both methods were compared. The non-destructive method employed neutron tomography to reconstruct the locations of fuel elements through the use of a maximum entropy reconstruction algorithm known as MENT. The destructive method consisted of ''potting'' (a technique that embeds and permanently fixes the fuel elements in a solid matrix) the subassembly, and then cutting and polishing the individual sections. The comparison indicated that the tomography reconstruction provided good results in describing the bundle geometry and spacer-wire locations, with the overall resolution being on the order of a spacer-wire diameter. A dimensional consistency check indicated that the element and spacer-wire dimensions were accurately reproduced in the reconstruction.

  10. Adsorption of branched and dendritic polymers onto flat surfaces: A Monte Carlo study

    SciTech Connect (OSTI)

    Sommer, J.-U. [Leibniz Institute of Polymer Research Dresden e. V., 01069 Dresden (Germany) [Leibniz Institute of Polymer Research Dresden e. V., 01069 Dresden (Germany); Institute for Theoretical Physics, Technische Universität Dresden, 01069 Dresden (Germany); K?os, J. S. [Leibniz Institute of Polymer Research Dresden e. V., 01069 Dresden (Germany) [Leibniz Institute of Polymer Research Dresden e. V., 01069 Dresden (Germany); Faculty of Physics, A. Mickiewicz University, Umultowska 85, 61-614 Pozna? (Poland); Mironova, O. N. [Leibniz Institute of Polymer Research Dresden e. V., 01069 Dresden (Germany)] [Leibniz Institute of Polymer Research Dresden e. V., 01069 Dresden (Germany)

    2013-12-28T23:59:59.000Z

    Using Monte Carlo simulations based on the bond fluctuation model we study the adsorption of starburst dendrimers with flexible spacers onto a flat surface. The calculations are performed for various generation number G and spacer length S in a wide range of the reduced temperature ? as the measure of the interaction strength between the monomers and the surface. Our simulations indicate a two-step adsorption scenario. Below the critical point of adsorption, ?{sub c}, a weakly adsorbed state of the dendrimer is found. Here, the dendrimer retains its shape but sticks to the surface by adsorbed spacers. By lowering the temperature below a spacer-length dependent value, ?*(S) < ?{sub c}, a step-like transition into a strongly adsorbed state takes place. In the flatly adsorbed state the shape of the dendrimer is well described by a mean field model of a dendrimer in two dimensions. We also performed simulations of star-polymers which display a simple crossover-behavior in full analogy to linear chains. By analyzing the order parameter of the adsorption transition, we determine the critical point of adsorption of the dendrimers which is located close to the critical point of adsorption for star-polymers. While the order parameter for the adsorbed spacers displays a critical crossover scaling, the overall order parameter, which combines both critical and discontinuous transition effects, does not display simple scaling. The step-like transition from the weak into the strong adsorbed regime is confirmed by analyzing the shape-anisotropy of the dendrimers. We present a mean-field model based on the concept of spacer adsorption which predicts a discontinuous transition of dendrimers due to an excluded volume barrier. The latter results from an increased density of the dendrimer in the flatly adsorbed state which has to be overcome before this state is thermodynamically stable.

  11. Experimental High Velocity Acid Jetting in Limestone Carbonates

    E-Print Network [OSTI]

    Holland, Christopher

    2014-04-30T23:59:59.000Z

    spacers have an OD of 4” and an ID of 3.5”. One spacer ring has a 2” length and the other has a 0.25” length for a total Lsp of 2.25”. Therefore, from Eq. 2.13: (2.14) The outlet holder, Fig. 2.4D secures the outlet side...…………………………………………………………… 2.2 Pulse Pump……………………………………………………………… 2.3 Core Holder…………………………………………………………….. 2.4 Hydraulic Pump………………………………………………………… 2.5 Backpressure Regulator…………………………………………………. 2.6 Data Acquisition………………………………………………………… 2.7 Permeability Measuring...

  12. Corrosion resistant storage container for radioactive material

    DOE Patents [OSTI]

    Schweitzer, Donald G. (Bayport, NY); Davis, Mary S. (Wading River, NY)

    1990-01-01T23:59:59.000Z

    A corrosion resistant long-term storage container for isolating radioactive waste material in a repository. The container is formed of a plurality of sealed corrosion resistant canisters of different relative sizes, with the smaller canisters housed within the larger canisters, and with spacer means disposed between judxtaposed pairs of canisters to maintain a predetermined spacing between each of the canisters. The combination of the plural surfaces of the canisters and the associated spacer means is effective to make the container capable of resisting corrosion, and thereby of preventing waste material from leaking from the innermost canister into the ambient atmosphere.

  13. Triode carbon nanotube field emission display using barrier rib structure and manufacturing method thereof

    DOE Patents [OSTI]

    Han, In-taek (Yongin, KR); Kim, Jong-min (Seongnam, KR)

    2003-01-01T23:59:59.000Z

    A triode carbon nanotube field emission display (FED) using a barrier rib structure and a manufacturing method thereof are provided. In a triode carbon nanotube FED employing barrier ribs, barrier ribs are formed on cathode lines by a screen printing method, a mesh structure is mounted on the barrier ribs, and a spacer is inserted between the barrier ribs through slots of the mesh structure, thereby stably fixing the mesh structure and the spacer within a FED panel due to support by the barrier ribs.

  14. Methods for attaching polymerizable ceragenins to water treatment membranes using silane linkages

    DOE Patents [OSTI]

    Hibbs, Michael; Altman, Susan J.; Jones, Howland D. T.; Savage, Paul B.

    2013-09-10T23:59:59.000Z

    This invention relates to methods for chemically grafting and attaching ceragenin molecules to polymer substrates; methods for synthesizing ceragenin-containing copolymers; methods for making ceragenin-modified water treatment membranes and spacers; and methods of treating contaminated water using ceragenin-modified treatment membranes and spacers. Ceragenins are synthetically produced antimicrobial peptide mimics that display broad-spectrum bactericidal activity. Alkene-functionalized ceragenins (e.g., acrylamide-functionalized ceragenins) can be attached to polyamide reverse osmosis membranes using amine-linking, amide-linking, UV-grafting, or silane-coating methods. In addition, silane-functionalized ceragenins can be directly attached to polymer surfaces that have free hydroxyls.

  15. Biofouling-resistant ceragenin-modified materials and structures for water treatment

    DOE Patents [OSTI]

    Hibbs, Michael; Altman, Susan J.; Jones, Howland D. T.; Savage, Paul B.

    2013-09-10T23:59:59.000Z

    This invention relates to methods for chemically grafting and attaching ceragenin molecules to polymer substrates; methods for synthesizing ceragenin-containing copolymers; methods for making ceragenin-modified water treatment membranes and spacers; and methods of treating contaminated water using ceragenin-modified treatment membranes and spacers. Ceragenins are synthetically produced antimicrobial peptide mimics that display broad-spectrum bactericidal activity. Alkene-functionalized ceragenins (e.g., acrylamide-functionalized ceragenins) can be attached to polyamide reverse osmosis membranes using amine-linking, amide-linking, UV-grafting, or silane-coating methods. In addition, silane-functionalized ceragenins can be directly attached to polymer surfaces that have free hydroxyls.

  16. Methods for attaching polymerizable ceragenins to water treatment membranes using amine and amide linkages

    DOE Patents [OSTI]

    Hibbs, Michael; Altman, Susan J.; Jones, Howland D.T.; Savage, Paul B.

    2013-10-15T23:59:59.000Z

    This invention relates to methods for chemically grafting and attaching ceragenin molecules to polymer substrates; methods for synthesizing ceragenin-containing copolymers; methods for making ceragenin-modified water treatment membranes and spacers; and methods of treating contaminated water using ceragenin-modified treatment membranes and spacers. Ceragenins are synthetically produced antimicrobial peptide mimics that display broad-spectrum bactericidal activity. Alkene-functionalized ceragenins (e.g., acrylamide-functionalized ceragenins) can be attached to polyamide reverse osmosis membranes using amine-linking, amide-linking, UV-grafting, or silane-coating methods. In addition, silane-functionalized ceragenins can be directly attached to polymer surfaces that have free hydroxyls.

  17. Magneto-optic characterizations of superlattices and wedged sandwiches with oscillatory interlayer magnetic coupling

    SciTech Connect (OSTI)

    Bader, S.D.

    1992-07-01T23:59:59.000Z

    Three examples of magnetic coupling across metallic spacer layers are considered. Fe/Nb sputtered superlattices are observed to have as many as five antiferromagnetic oscillations, but a weak magnetoresistive anomaly. Epitaxial trilayers of Fe/Mo/Fe grown on Mo(100) and Co/Cu/Co grown on Cu(100) are observed to have short- and long-period oscillations, respectively. The trilayers are grown with wedged spacer layers and characterized in-situ by means of the magneto-optic Kerr effect.

  18. Corrosion resistant storage container for radioactive material

    DOE Patents [OSTI]

    Schweitzer, D.G.; Davis, M.S.

    1984-08-30T23:59:59.000Z

    A corrosion resistant long-term storage container for isolating high-level radioactive waste material in a repository is claimed. The container is formed of a plurality of sealed corrosion resistant canisters of different relative sizes, with the smaller canisters housed within the larger canisters, and with spacer means disposed between juxtaposed pairs of canisters to maintain a predetermined spacing between each of the canisters. The combination of the plural surfaces of the canisters and the associated spacer means is effective to make the container capable of resisting corrosion, and thereby of preventing waste material from leaking from the innermost canister into the ambient atmosphere.

  19. Fermilab Today

    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,Dist. CategoryFebruaryFebruaryInThe, 2015 spacer7, 2015 spacer

  20. Fermilab Today

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  1. Fermilab Today

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

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  2. Fermilab Today

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  3. Fermilab Today

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

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  4. Fermilab Today

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

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  5. Fermilab Today

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  6. Fermilab Today

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

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  7. Fermilab Today

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  8. Fermilab Today

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  9. Fermilab Today

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  10. Fermilab Today

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

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  11. Fermilab Today

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

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  12. Energy Saving Homes and Buildings, Continuum Magazine, Spring 2014 / Issue 6 (Book)

    SciTech Connect (OSTI)

    Not Available

    2014-03-01T23:59:59.000Z

    This issue of Continuum focuses on NREL's research to improve the energy efficiency of residential and commercial buildings. Heating, cooling, and lighting our homes and commercial structures account for more than 70% of all electricity used in the United States. That costs homeowners, businesses, and government agencies more than $400 billion annually, about 40% of our nation's total energy costs. Producing that energy contributes almost 40% of our nation's carbon dioxide emissions.By 2030, an estimated 900 billion square feet of new and rebuilt construction will be developed worldwide, providing an unprecedented opportunity to create efficient, sustainable buildings. Increasing the energy performance of our homes alone could potentially eliminate up to 160 million tons of greenhouse gas emissions and lower residential energy bills by $21 billion annually by the end of the decade.

  13. LR: Compact connectivity representation for triangle meshes

    SciTech Connect (OSTI)

    Gurung, T; Luffel, M; Lindstrom, P; Rossignac, J

    2011-01-28T23:59:59.000Z

    We propose LR (Laced Ring) - a simple data structure for representing the connectivity of manifold triangle meshes. LR provides the option to store on average either 1.08 references per triangle or 26.2 bits per triangle. Its construction, from an input mesh that supports constant-time adjacency queries, has linear space and time complexity, and involves ordering most vertices along a nearly-Hamiltonian cycle. LR is best suited for applications that process meshes with fixed connectivity, as any changes to the connectivity require the data structure to be rebuilt. We provide an implementation of the set of standard random-access, constant-time operators for traversing a mesh, and show that LR often saves both space and traversal time over competing representations.

  14. Final report to the Department of Energy: Green Schools Project DE-FC01-99EE10685. Schools for the 21st century: Transferring the Green Schools experience

    SciTech Connect (OSTI)

    Harrigan, Merrilee

    2002-01-15T23:59:59.000Z

    This report describes five major activities that the Alliance to Save Energy performed for the years 2000 and 2001 to support and compliment DOE's Energy Smart Schools Partnership. The major tasks under this project were to: (1) Promote the School Efficiency Peer Exchange program for school personnel; (2) develop the Earth Apple Awards program and disseminate the best award-winning ideas; (3) link Green Schools with Rebuilt with at least one metropolitan area such as Philadelphia or Buffalo; (4) support Rebuild/Energy Smart Schools through working at the state level to develop business, state, and local government and through making presentations in support of school efficiency; (5) update the curriculum search originally conducted in 1995.

  15. A syncrhronized FIR/VUV light source at Jefferson Lab

    SciTech Connect (OSTI)

    Shinn, Michelle D. [JLAB, Newport News, VA (United States)

    2013-05-31T23:59:59.000Z

    This slide show presents an introduction to Free-Electron Lasers (FELs) and what makes the JLab FELs unique. Ways of exploring the nature of matter with the FEL are shown, including applications in the THz, IR, UV, and VUV. The Jefferson Lab FEL Facility is unique in its high average brightness in the THz, and IR -- VUV spectral regions and Sub ps-pulses at MHz repetition rates. With an installation of a rebuilt 'F100' cryomodule the linac energy will increase to > 150MeV. This will permit lasing further into the UV and extend VUV. With the swap of our CEBAF-style cryounit for an improved booster, we could lase in the VUV. Addition of a wiggler and optical cavity slightly canted from the UV beamline would allow simultaneous lasing of UV and THz for high E-field 2 color experiments.

  16. Gearbox Reliability Collaborative Bearing Calibration

    SciTech Connect (OSTI)

    van Dam, J.

    2011-10-01T23:59:59.000Z

    NREL has initiated the Gearbox Reliability Collaborative (GRC) to investigate the root cause of the low wind turbine gearbox reliability. The GRC follows a multi-pronged approach based on a collaborative of manufacturers, owners, researchers and consultants. The project combines analysis, field testing, dynamometer testing, condition monitoring, and the development and population of a gearbox failure database. At the core of the project are two 750kW gearboxes that have been redesigned and rebuilt so that they are representative of the multi-megawatt gearbox topology currently used in the industry. These gearboxes are heavily instrumented and are tested in the field and on the dynamometer. This report discusses the bearing calibrations of the gearboxes.

  17. Time-resolved neutron imaging at ANTARES cold neutron beamline

    E-Print Network [OSTI]

    Tremsin, A S; Tittelmeier, K; Schillinger, B; Schulz, M; Lerche, M; Feller, W B

    2015-01-01T23:59:59.000Z

    In non-destructive evaluation with X-rays light elements embedded in dense, heavy (or high-Z) matrices show little contrast and their structural details can hardly be revealed. Neutron radiography, on the other hand, provides a solution for those cases, in particular for hydrogenous materials, owing to the large neutron scattering cross section of hydrogen and uncorrelated dependency of neutron cross section on the atomic number. The majority of neutron imaging experiments at the present time is conducted with static objects mainly due to the limited flux intensity of neutron beamline facilities and sometimes due to the limitations of the detectors. However, some applications require the studies of dynamic phenomena and can now be conducted at several high intensity beamlines such as the recently rebuilt ANTARES beam line at the FRM-II reactor. In this paper we demonstrate the capabilities of time resolved imaging for repetitive processes, where different phases of the process can be imaged simultaneously and...

  18. Rebuilding of Rautaruukki blast furnaces

    SciTech Connect (OSTI)

    Kallo, S.; Pisilae, E.; Ojala, K. [Rautaruukki Oy Raahe Steel (Finland)

    1997-12-31T23:59:59.000Z

    Rautaruukki Oy Raahe Steel rebuilt its blast furnaces in 1995 (BF1) and 1996 (BF2) after 10 year campaigns and production of 9,747 THM/m{sup 3} (303 NTHM/ft{sup 3}) and 9,535 THM/m{sup 3} (297 NTHM/ft{sup 3}), respectively. At the end of the campaigns, damaged cooling system and shell cracks were increasingly disturbing the availability of furnaces. The goal for rebuilding was to improve the cooling systems and refractory quality in order to attain a 15 year campaign. The furnaces were slightly enlarged to meet the future production demand. The blast furnace control rooms and operations were centralized and the automation and instrumentation level was considerably improved in order to improve the operation efficiency and to reduce manpower requirements. Investments in direct slag granulation and improved casthouse dedusting improved environmental protection. The paper describes the rebuilding.

  19. DNA as a target for anticancer compounds: methods to determine the mode of binding and the mechanism of action

    E-Print Network [OSTI]

    Hergenrother, Paul J.

    . A battery of in vitro assays readily distinguishes between DNA intercalation, DNA groove binding-targeting drugs for cancer and beyond, the further discovery and characterization of such compounds are of considerable interest. This review outlines diagnostic experiments useful in characterizing noncovalent drug

  20. Accetped by Journal of Eukaryotic Microbiology KANG ET AL.---Paragymnodinium shiwhaense n. gen., n. sp.

    E-Print Network [OSTI]

    Jeong, Hae Jin

    for Environmental Management, College of Agriculture and Life Sciences, Seoul National University, Seoul 151. Paragymnodinium shiwhaense does not have a nuclear envelope chamber nor a nuclear fibrous connective (NFC). Cells nuclear envelope chambers, NFC, and an apical groove. Unlike Polykrikos spp. which have a taeniocyst

  1. FRUIT & NUT Plums, Nectarines, Apricots,

    E-Print Network [OSTI]

    Mukhtar, Saqib

    having a groove running down one side of the fruit with a smooth seed. Like peaches, they also set fruit on buds from previous season's growth. Usually the fruit has a dusty white coating or wax bloom such as `Stanley', which is grown fresh and frequently dried and used as prunes. These varieties have poor pro

  2. Concurrent Zero-Knowledge Proofs for NP Joe Kilian y Erez Petrank z Ransom Richardson x

    E-Print Network [OSTI]

    Petrank, Erez

    Cummings Center, Beverly, MA 01915. rrichard@groove.net. 1 #12; zero-knowledge protocols that are robustConcurrent Zero-Knowledge Proofs for NP #3; Joe Kilian y Erez Petrank z Ransom Richardson x November 26, 2001 Abstract A proof is concurrent zero-knowledge if it remains zero-knowledge when many

  3. Mechanisms of coactivation of estrogen receptor alpha (ER alpha)- and ER alpha/Sp-mediated gene transactivation by vitamin D receptor interacting protein 205 (DRIP205) in breast cancer cells

    E-Print Network [OSTI]

    Wu, Qian

    2009-05-15T23:59:59.000Z

    , is the central component of the eukaryotic transcription machinery. X-ray crystallography showed a highly symmetric alpha/beta structure containing a DNA-binding fold. This fold resembles a molecular saddle (161,162) that is bound to the widened minor groove...

  4. Submittedto the 1997Particle Accelerator Conference,Vancouver, BC, May 12-16,1997 A Helical Magnet Design for RHIC BNL-69117

    E-Print Network [OSTI]

    Ohta, Shigemi

    Magnet Design for RHIC BNL-69117 E. Willen, R. Gupta, A. Jain, E. Kelly, G. Morgan, J. Muratore, R into helical grooves machinedinto athick-walled aluminum cylinder. 1 INTRODUCTION In order to control the spin at the center of eachassembly. The resulting integrated cold massis mounted into a cryostat

  5. Available online at www.sciencedirect.com Wear 265 (2008) 402410

    E-Print Network [OSTI]

    Barber, James R.

    to be extremely computer-intensive. We here present an alternative implementation of the transient problem, based 6647. E-mail address: jbarber@umich.edu (J.R. Barber). equations and boundary conditions of the problem operate in a lubricant envi- ronment and indeed a pattern of grooves is typically cut into the discs

  6. EPOXY TECHNOLOGY, INC. 14 Fortune Drive, Billerica, MA 01821-3972 Phone: 978.667.3805 Fax: 978.663.9782

    E-Print Network [OSTI]

    Bessell, Mike

    ) as to its accuracy and assumes no liability in connection with any use of this product. Rev. II Apr 2010 EPO Minimum Bond Line Cure Schedule*: Mix Ratio By Weight: 100:35 80°C 3 Hours Specific Gravity: 23°C 3 Days, bonding glass cover slip over V-groove; spectral transmission of visible and IR light. BIOCOMPATIBLE

  7. Laser Welding of Aluminum and Aluminum Alloys

    E-Print Network [OSTI]

    Eagar, Thomas W.

    .. ) Laser Welding of Aluminum and Aluminum Alloys Welds made with sharp bevel-groove weld aluminum and by aluminum alloy 5456 have been studied. The results indicate that initial absorption varies, many aluminum alloys contain magnesium or zinc, which are easily vaporized and thereby form a plasma

  8. Electron acceleration in a helical waveguide1 X. Artru, C. Ray

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    is a cylindrical tube with a conducting helical wire inside [1, 2]. Another type is a tube with a thick dielectric "photon path" is the helix passing trough the centres of the local cross sections of the tube on the internal face of an initially cylindral tube. The case of rectangular grooves has been studied in [5, 6

  9. Team Akron Brass Ball Bearing Analysis Ryan Bonazza, Jennifer Hyland, Jon Katz, Sandy Risha

    E-Print Network [OSTI]

    Demirel, Melik C.

    Team Akron Brass ­ Ball Bearing Analysis Ryan Bonazza, Jennifer Hyland, Jon Katz, Sandy Risha frequently; therefore, raised burrs will potentially appear sooner and more often. Team Akron Brass. However, the ball has formed a groove that could be potentially detrimental to the monitor. Our team

  10. ORNL 2010-G01077/jcn UT-B ID 200501581

    E-Print Network [OSTI]

    system includes two steel or aluminum panels, connected to each other with metal rib-like projections to the wall. Channel portions are connected to the sides of the metal panels, and a grooved connector anchors be injected into and between the channels. The foam secures the structural column, while also providing

  11. Gas cooled fast reactor control rod drive mechanism deceleration unit. Test program

    SciTech Connect (OSTI)

    Wagner, T.H.

    1981-10-01T23:59:59.000Z

    This report presents the results of the airtesting portion of the proof-of-principle testing of a Control Rod Scram Deceleration Device developed for use in the Gas Cooled Fast Reactor (GCFR). The device utilizes a grooved flywheel to decelerate the translating assembly (T/A). Two cam followers on the translating assembly travel in the flywheel grooves and transfer the energy of the T/A to the flywheel. The grooves in the flywheel are straight for most of the flywheel length. Near the bottom of the T/A stroke the grooves are spiraled in a decreasing slope helix so that the cam followers accelerate the flywheel as they transfer the energy of the falling T/A. To expedite proof-of-principle testing, some of the materials used in the fabrication of certain test article components were not prototypic. With these exceptions the concept appears to be acceptable. The initial test of 300 scrams was completed with only one failure and the failure was that of a non-prototypic cam follower outer sleeve material.

  12. Fluid flow monitoring device

    DOE Patents [OSTI]

    McKay, M.D.; Sweeney, C.E.; Spangler, B.S. Jr.

    1993-11-30T23:59:59.000Z

    A flow meter and temperature measuring device are described comprising a tube with a body centered therein for restricting flow and a sleeve at the upper end of the tube to carry several channels formed longitudinally in the sleeve to the appropriate axial location where they penetrate the tube to allow pressure measurements and temperature measurements with thermocouples. The high pressure measurement is made using a channel penetrating the tube away from the body and the low pressure measurement is made at a location at the widest part of the body. An end plug seals the end of the device and holes at its upper end allow fluid to pass from the interior of the tube into a plenum. The channels are made by cutting grooves in the sleeve, the grooves widened at the surface of the sleeve and then a strip of sleeve material is welded to the grooves closing the channels. Preferably the sleeve is packed with powdered graphite before cutting the grooves and welding the strips. 7 figures.

  13. Fluid flow monitoring device

    DOE Patents [OSTI]

    McKay, Mark D. (1426 Socastee Dr., North Augusta, SC 29841); Sweeney, Chad E. (3600 Westhampton Dr., Martinez, GA 30907-3036); Spangler, Jr., B. Samuel (2715 Margate Dr., Augusta, GA 30909)

    1993-01-01T23:59:59.000Z

    A flow meter and temperature measuring device comprising a tube with a body centered therein for restricting flow and a sleeve at the upper end of the tube to carry several channels formed longitudinally in the sleeve to the appropriate axial location where they penetrate the tube to allow pressure measurements and temperature measurements with thermocouples. The high pressure measurement is made using a channel penetrating the tube away from the body and the low pressure measurement is made at a location at the widest part of the body. An end plug seals the end of the device and holes at its upper end allow fluid to pass from the interior of the tube into a plenum. The channels are made by cutting grooves in the sleeve, the grooves widened at the surface of the sleeve and then a strip of sleeve material is welded to the grooves closing the channels. Preferably the sleeve is packed with powdered graphite before cutting the grooves and welding the strips.

  14. Effects of operating damage of labyrinth seal on seal leakage and wheelspace hot gas ingress

    E-Print Network [OSTI]

    Xu, Jinming

    2007-09-17T23:59:59.000Z

    , and (4) the effect of rub-groove axial position and wall angle on gas turbine ingress heating. To facilitate grid generation, an unstructured grid generator named OpenCFD was also developed. The grid generator is written in C++ and generates hybrid grids...

  15. Thermo-optical modulation for improved ultrasonic fatigue crack detection in Ti6Al4V

    E-Print Network [OSTI]

    Nagy, Peter B.

    scatterers, such as surface grooves, corrosion pits, coarse grains, etc. that might hide the fatigue crack to grow at unexpectedly high growth rates well below the large-crack threshold in aluminum, aluminum­lithium) and secondary irregulari- ties (e.g. uneven machining, mechanical wear, corrosion, etc.). Second

  16. The Current T2K Beam Window

    E-Print Network [OSTI]

    McDonald, Kirk

    Downstream Helium velocity 5 m/s Heat transfer coefficient 150 W/m2K #12;Helium flow grooves He in He out at KEK (via Oak Ridge via PSI). #12;Assembled Window #12;Remote Handling #12;Remote handling Monitor Chamber (Canada) Target Station (Japan) #12;Remote installation #12;Stress analysis and upgrade potential

  17. Sensitivity of Low Sloped Roofs Designs to Initial Water and Air Leakage

    E-Print Network [OSTI]

    Karagiozis, A.; Desjarlais, A.; Salonvaara, M.

    2002-01-01T23:59:59.000Z

    moisture to the outside. Solar radiation raises the temperature of air in the grooves and on average, during a sunny summer day 0.5 L of water can be ventilated out of the roof per 1m width of the roof. In this paper, one climatic condition was investigated...

  18. Modifications to a two-control-volume, frequency dependent, transfer-function analysis of hole-pattern gas annular seals

    E-Print Network [OSTI]

    Shin, Yoon Shik

    2007-04-25T23:59:59.000Z

    ............................................................................................ 12 5. EFFECT OF REAL GAS PROPERTIES .................................................................. 24 6. EFFECT OF STATOR-HOLE-DEPTH VARIATION ............................................. 32 7. EFFECT OF DEEP ANNULAR GROOVE................................................ 4 3 Flow in and out through control volume surface ...................................................... 5 4 Direct stiffness K(f) vs. non-dimensional frequency f for smooth seal.................... 13 5 Cross-coupled stiffness k(f) vs. non...

  19. Dynamic and Static Characteristics of a Rocker-Pivot, Tilting-Pad Bearing with 50% and 60% Offsets.

    E-Print Network [OSTI]

    Kulhanek, Chris David

    2012-02-14T23:59:59.000Z

    Static performance and rotordynamic coefficients are provided for a rocker-pivot, tilting-pad journal bearing with 50 and 60 percent offset pads in a load-between-pad configuration. The bearing uses leading-edge-groove lubrication and has...

  20. Three-dimensional modes in a periodically driven elongated cavity Jonathan J. F. Leung and Amir H. Hirsa

    E-Print Network [OSTI]

    Marques, Francisco

    period T , St = h2 /T . The two-dimensional time-periodic basic state consists of the boundary layer at x= ± /2; b oscillatory glass floor; c end walls at z= ± /2; d floor of the acrylic con- tainer; e dynamic seals; f free-surface groove and solid wall position at y=h; g Teflon slide pads for oscillatory

  1. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, VOL. 14, NO. 2, JUNE 2004 1519 Tcs Tests and Performance Assessment of the ITER

    E-Print Network [OSTI]

    Hampshire, Damian

    racetrack coil is wound in double pancakes in the grooves of stainless steel radial plates using dual and Performance Assessment of the ITER Toroidal Field Model Coil (Phase II) R. Zanino, M. Bagnasco, G. Dittrich, W of Forschungszentrum Karlsruhe, Germany: in Phase I, completed in 2001, the coil was tested in its self-field, while

  2. Stamping Oriented Molecular Monolayers Using Liquid Crystal Inks

    E-Print Network [OSTI]

    Patrick, David L.

    stamps were made from mechanically rubbed polyimide (PI) films on glass, grooved Si, or embossed poly(methylmethacrylate) (PMMA) (Figures S1A-C). Polyimide stamps were made by spin coating a polyimide precursor solution (PI by rubbing of the cured film with a soft cloth. Biaxial polyimide stamps were made by masking half the film

  3. LBNL Report 51983 26-March-2003

    E-Print Network [OSTI]

    of analog recordings for archival storage and distribution. In the present work some techniques of digital on the record respectively. Figure 1: Micro-photograph of grooves on a 78 r.p.m. recording. Illumination grid. The vertical resolution is 100

  4. Proc. Natl. Acad. Sci. USA Vol. 95, pp. 1289012895, October 1998

    E-Print Network [OSTI]

    Dervan, Peter B.

    -binding transcription factors are required by HIV type 1 for RNA synthesis. Two pyrrole­imidazole polyamides were con- taining pyrrole (Py) and imidazole (Im) amino acids (1­6). DNA recognition depends on a code of side-by-side aromatic amino acid pairings in the minor groove. A pyrrole opposite an imidazole (Py Im

  5. J. Am. Chem. Soc. 1994,116, 1983-1988 7983 Hairpin Peptide Motif. A New Class of Oligopeptides for

    E-Print Network [OSTI]

    Dervan, Peter B.

    , and Peter B. Dewan. Contributionfrom the Arnold and Mabel Beckman Laboratories of Chemical Synthesis in the minor groove of DNA.14 An imidazole pyrrole-pyrrole tripeptide, 1-methylimidazole-2-carboxamide tethered through thecentral pyrrole rings with a butyl linker bind with increased affinity and specificity

  6. Hybrid armature projectile

    DOE Patents [OSTI]

    Hawke, R.S.; Asay, J.R.; Hall, C.A.; Konrad, C.H.; Sauve, G.L.; Shahinpoor, M.; Susoeff, A.R.

    1993-03-02T23:59:59.000Z

    A projectile for a railgun that uses a hybrid armature and provides a seed block around part of the outer surface of the projectile to seed the hybrid plasma brush. In addition, the hybrid armature is continuously vaporized to replenish plasma in a plasma armature to provide a tandem armature and provides a unique ridge and groove to reduce plasma blowby.

  7. Proceedings of the NSF Workshop on Research Needs in Thermal Aspects of Material Removal Processes, edited Ranga Komanduri, Oklahoma State University, Stillwater, OK, June 10-12, 2003

    E-Print Network [OSTI]

    Yao, Y. Lawrence

    is accomplished by laser material interaction, and includes laser drilling, laser cutting and laser grooving in Laser Material Removal Y. Lawrence Yao, Hongqiang Chen Columbia University, New York, NY yly1@columbia In laser material removal using a continuous wave or long-pulsed laser, the primary material removal

  8. ELSEVIER S0032-3861(96)00447-8 PolymerVol. 38 No. l, pp. 105 III, 1997

    E-Print Network [OSTI]

    Srinivasarao, Mohan

    the effective adhesion between two immiscible polymers was demonstrated. Bilayer specimens of polycarbonate depths and spacings into the polycarbonate (PC) before joining the layers. The SAN, having a significantly lower glass transition temperature than polycarbonate, flows into the grooves during annealing

  9. A case study evaluation of subsea preferential-weld heat-affected-zone corrosion

    SciTech Connect (OSTI)

    Tyson, J.A.G.; Bell, E.R.G.

    1988-06-01T23:59:59.000Z

    Annual subsea inspections of the Murchison field platform's major welded joints indicated that a significant proportion of the welds suffered from preferential corrosion of their heat-affected zones. Only a limited number of joints can be inspected economically each year, and the program is normally biased toward structurally important welds with relatively low predicted fatigue lives. The presence of corrosion grooves considerably modifies the weld stress concentration factors (SCF's) and thus impacts the fatigue rankings and choice of welds for inspection. With only limited inspection data, there was a need to identify the extent of the corrosion problem. This paper discussed parameters studied in an attempt to correlate the spread and severity of the corrosion problem with variances in geometry, metallurgy, and cathodic protection. Correlations were found that enabled the successful prediction of location of further corrosion grooves and allowed a new optimum inspection program based on both fatigue prediction and weld corrosion history. The presence of the corrosion grooves in many cases gives spurious crack-like indications with magnetic particle inspection (MPI). This paper also discusses how alternating current potential difference (ACPD) inspection techniques together with profile-molding techniques were used to eliminate spurious readings and to characterize the grooving shape for detailed fracture-mechanics assessment.

  10. ATWAI 11-2-2011 Vevo770 Ultrasound

    E-Print Network [OSTI]

    Sabatini, David M.

    -Time Microvisualization (RMV) Scan Head Nosepiece Pressure fit groove Transducer Arm Acoustic Window RMV cable #12;ATWAI of interest ­ If you want to have respiration and cardiac information included in the session, press the view", press "Ctrl +L" to label and save data 5 Menu tab View · To save a video loop up up to 300 frames press

  11. Observation of thermally etched grain boundaries with the FIB/TEM technique

    SciTech Connect (OSTI)

    Palizdar, Y., E-mail: y.palizdar@merc.ac.ir [Nanotechnology and advanced materials department, Materials and energy research centre (MERC), Karaj (Iran, Islamic Republic of); San Martin, D. [MATERALIA group, Department of Physical Metallurgy, (CENIM-CSIC), Centro Nacional de Investigaciones Metalúrgicas Av. Gregorio del Amo 8, 28040 Madrid (Spain); Ward, M.; Cochrane, R.C.; Brydson, R.; Scott, A.J. [Institute for Materials Research, SPEME, University of Leeds, Leeds LS2 9JT (United Kingdom)

    2013-10-15T23:59:59.000Z

    Thermal etching is a method which is able to reveal and characterize grain boundaries, twins or dislocation structures and determine parameters such as grain boundary energies, surface diffusivities or study phase transformations in steels, intermetallics or ceramic materials. This method relies on the preferential transfer of matter away from grain boundaries on a polished sample during heating at high temperatures in an inert/vacuum atmosphere. The evaporation/diffusion of atoms at high temperatures results in the formation of grooves at the intersections of the planes of grain/twin boundaries with the polished surface. This work describes how the combined use of Focussed Ion Beam and Transmission Electron Microscopy can be used to characterize not only the grooves and their profile with the surface, but also the grain boundary line below the groove, this method being complementary to the commonly used scanning probe techniques. - Highlights: • Thermally etched low-carbon steel samples have been characterized by FIB/TEM • Grain boundary (GB) lines below the groove have been characterized in this way • Absence of ghost traces and large ? angle suggests that GB are not stationary but mobile • Observations correlate well with previous works and Mullins' investigations [22].

  12. Hybrid armature projectile

    DOE Patents [OSTI]

    Hawke, Ronald S. (Livermore, CA); Asay, James R. (Los Lunas, NM); Hall, Clint A. (Albuquerque, NM); Konrad, Carl H. (Albuquerque, NM); Sauve, Gerald L. (Berthoud, CO); Shahinpoor, Mohsen (Albuquerque, NM); Susoeff, Allan R. (Pleasanton, CA)

    1993-01-01T23:59:59.000Z

    A projectile for a railgun that uses a hybrid armature and provides a seed block around part of the outer surface of the projectile to seed the hybrid plasma brush. In addition, the hybrid armature is continuously vaporized to replenish plasma in a plasma armature to provide a tandem armature and provides a unique ridge and groove to reduce plasama blowby.

  13. Crystal structure of the anti-viral APOBEC3G catalytic domain and functional implications

    SciTech Connect (OSTI)

    Holden, Lauren G.; Prochnow, Courtney; Chang, Y. Paul; Bransteitter, Ronda; Chelico, Linda; Sen, Udayaditya; Stevens, Raymond C.; Goodman, Myron F.; Chen, Xiaojiang S. (USC); (Scripps)

    2009-04-07T23:59:59.000Z

    The APOBEC family members are involved in diverse biological functions. APOBEC3G restricts the replication of human immunodeficiency virus (HIV), hepatitis B virus and retroelements by cytidine deamination on single-stranded DNA or by RNA binding. Here we report the high-resolution crystal structure of the carboxy-terminal deaminase domain of APOBEC3G (APOBEC3G-CD2) purified from Escherichia coli. The APOBEC3G-CD2 structure has a five-stranded {beta}-sheet core that is common to all known deaminase structures and closely resembles the structure of another APOBEC protein, APOBEC2. A comparison of APOBEC3G-CD2 with other deaminase structures shows a structural conservation of the active-site loops that are directly involved in substrate binding. In the X-ray structure, these APOBEC3G active-site loops form a continuous 'substrate groove' around the active centre. The orientation of this putative substrate groove differs markedly (by 90 degrees) from the groove predicted by the NMR structure. We have introduced mutations around the groove, and have identified residues involved in substrate specificity, single-stranded DNA binding and deaminase activity. These results provide a basis for understanding the underlying mechanisms of substrate specificity for the APOBEC family.

  14. Sequence specific alkylation of DNA by hairpin pyrroleimidazole polyamide conjugates

    E-Print Network [OSTI]

    Stoltz, Brian M.

    Sequence specific alkylation of DNA by hairpin pyrrole­imidazole polyamide conjugates Nicholas R predetermined sequences in the minor groove of DNA with affinities and specificities comparable to those of DNA for covalent reaction at specific DNA sequences and thereby inhibit DNA­protein interactions. Site

  15. Heather L. Paul1 Kenneth R. Diller*

    E-Print Network [OSTI]

    Texas at Austin, University of

    . The atmosphere consists of 95% CO2 with an average surface pressure of 800 Pa 6 torr 2 . The Mars Candor region), interstitial void frac- tions, interstitial void media, and orientations to the applied temperature gradient conductive insulation is achieved for a high-void-fraction configuration with a grooved fiber cross section

  16. Improving near-field confinement of a bowtie aperture using surface plasmon polaritons

    E-Print Network [OSTI]

    Xu, Xianfan

    Improving near-field confinement of a bowtie aperture using surface plasmon polaritons Pornsak; published online 1 June 2011 Bowtie aperture is known to produce subdiffraction-limited optical spot with high intensity. In this work, we investigate integrating a bowtie aperture with circular grooves

  17. ATLAS ATLAS ATLAS ATLAS

    E-Print Network [OSTI]

    Gan, K. K.

    Silicon lid v­groove for fibre alignment 45 0 cut for light reflection passive alignment features ffl Silicon carrier cut outs for silicon tiles passive alignment features ffl Silicon tiles alignment marks encouragement, modifications ffl produce a few working packages in­house in the next few weeks ffl investigate

  18. Continuum Theory of Epitaxial Crystal Growth, I Abstract 1 Introduction

    E-Print Network [OSTI]

    with appropriate boundary conditions at the continuum level to describe the growth ... epitaxial, i.e. layer by layer growth of a crystalline thin lm on a suitably ...... [13] Mullins W.W., Theory of Thermal Grooving, J. Appl. Phys., 28(1957), 333{

  19. Combined effects of prepulsing and target geometry on efficient extreme ultraviolet

    E-Print Network [OSTI]

    Harilal, S. S.

    and the deposition of EUV and out of band radiation can fur- ther cause surface erosion and damage at the required targets geometries with special grooves as developed previously by the authors. C 2011 Society of Photo-Optical. Damage of multilayer Mo/Si mirrors by the de- bris products of laser beam interaction with target

  20. Project Summary Report 1501-S 1 The University of Texas at Austin

    E-Print Network [OSTI]

    Texas at Austin, University of

    that the heat input required to produce a groove weld specimen that will pass the specified tests is too high on both sides, where the total heat input to the welded area is greatly increased. There are anecdotal the performance of fillet welds made with a matrix of consumables and heat inputs. Different fabricators made

  1. PHYSICS OF FLUIDS 25, 062108 (2013) Predicting longevity of submerged superhydrophobic

    E-Print Network [OSTI]

    Tafreshi, Hooman Vahedi

    2013-01-01T23:59:59.000Z

    PHYSICS OF FLUIDS 25, 062108 (2013) Predicting longevity of submerged superhydrophobic surfaces) A mathematical framework is developed to predict the longevity of a submerged superhydrophobic surface made up as the interface touches the groove's bottom. For demonstration, a superhydrophobic surface made of parallel

  2. Clamp for use in winding large magnet coils

    DOE Patents [OSTI]

    Brown, Robert L. (Kingston, TN); Kenney, Walter J. (Clinton, TN)

    1983-01-01T23:59:59.000Z

    In one aspect, the invention is a novel arrangement for applying forces to urns of a vertically extending helical coil which is wound about a support. The apparatus includes a first rigid member extending towards the turns. A second rigid member extends transversely from the end of the first and has a vertically extending face provided with a generally straight groove extending transversely of the turns. A longitudinal passage in the first member connects to the groove to form therewith a continuous guideway for rollable articles. A rigid lug longitudinally movable in the groove is provided with a projection which extends out of the groove and beneath the bottom of a selected turn of the coil. A train of rigid, rollable articles is disposed in the guideway inwardly of the lug. Means are provided for applying force to that end of the train which is relatively remote from the lug, to urge the latter against the bottom face of the selected turn. As a result, that turn is moved upward along the face of the support, establishing a selected spacing between that turn and the previously formed turn of the coil. When upward movement of the selected turn stops, the force applied to the lug immediately translates to a force which urges the above-mentioned grooved face against all of the formed turns, thus compressing them against the support. The above-mentioned first and second members are swingably mounted so that they can be temporarily moved out of the winding path, thus permitting continuous winding.

  3. Clamp for use in winding large magnet coils

    DOE Patents [OSTI]

    Brown, R.L.; Kenney, W.J.

    1981-05-05T23:59:59.000Z

    In one aspect, the invention is a novel arrangement for applying forces to turns of a vertically extending helical coil which is wound about a support. The apparatus includes a first rigid member extending towards the turns. A second rigid member extends transversely from the end of the first and has a vertically extending face provided with a generally straight groove extending transversely of the turns. A longitudinal passage in the first member connects to the groove to form therewith a continuous guideway for rollable articles. A rigid lug longitudinally movable in the groove is provided with a projection which extends out of the groove and beneath the bottom of a selected turn of the coil. A train of rigid, rollable articles is disposed in the guideway inwardly of the lug. Means are provided for applying force to that end of the train which is relatively remote from the lug, to urge the latter against the bottom face of the selected turn. As a result, that turn is moved upward along the face of the support, establishing a selected spacing between that turn and the previously formed turn of the coil. When upward movement of the selected turn stops, the force applied to the lug immediately translates to a force which urges the above-mentioned grooved face against all of the formed turns, thus compressing them against the support. The above-mentioned first and second members are swingably mounted so that they can be temporarily moved out of the winding path, thus permitting continuous winding.

  4. Method and an apparatus to control the lateral motion of a long metal bar being formed by a mechanical process such as rolling or drawing

    DOE Patents [OSTI]

    Chang, Tzyy-Shuh (Ann Arbor, MI); Huang, Hsun-Hau (Ann Arbor, MI); Lin, Chang-Hung (Ann Arbor, MI)

    2007-10-02T23:59:59.000Z

    An adjustable guide, includes two or more mechanisms each having a rotatable retaining element containing a retaining groove with a variable radius in its perimeter surface. The grooves form a guidance path to control the lateral, i.e. non-axial, motion of a long bar moving along a longitudinal axis during a production process.The diameter of the guidance path varies according to the variable radii of the grooves. The guidance path increases in size at a predetermined rate, from a point of origin to an end point on the retaining groove. Rotating the retaining elements causes the diameter of the retaining grooves to change so that the size of the guidance path can be changed to match the diameter of the bar being rolled, size of the guidance path can be changed to fit the diameter of a new bar rolled without having to exchange the guide for a different sized guide, reduce fiction between the bar and the guide, a media, such as compressed air, can be injected between the retaining elements via orifices.Each retaining element is attached to a mounting apparatus. The mounting apparatus can be fixed or flexible. The flexible mounting apparatus includes one or more springs and one or more shock absorbers. A force neutral position of the flexible mounting apparatus is designed to be located on the predetermined ideal bar path line. The flexible mounting apparatus dissipates kinetic energy from the bar thereby reducing the bar's lateral motion relative to the ideal bar path line.The damping ratio of the mounting apparatus can be adjustable to alter the product's vibration mode to enable better control of the bar's lateral motion.

  5. Molecular and in vitro characterization of a Babesia divergens-like agent from eastern cottontail rabbits (Sylvilagus floridanus) on Nantucket Island

    E-Print Network [OSTI]

    Spencer, Angela M

    2006-10-30T23:59:59.000Z

    related to the European parasite, Babesia divergens. The ribosomal RNA (rRNA) internal transcribed spacer regions (ITS1 and ITS2) and the 5.8S rRNA genes of Babesia isolates were sequenced and analyzed. The rRNA ITS region sequences of three isolates, one...

  6. Sheet electrode for electrochemical systems

    DOE Patents [OSTI]

    Tsien, Hsue C. (Chatham Township, Morris County, NJ); Newby, Kenneth R. (Berkeley Heights, NJ); Grimes, Patrick G. (Westfield, NJ); Bellows, Richard J. (Westfield, NJ)

    1983-04-12T23:59:59.000Z

    An electrochemical cell construction features a novel co-extruded plastic electrode in an interleaved construction with a novel integral separator-spacer. Also featured is a leak and impact resistant construction for preventing the spill of corrosive materials in the event of rupture.

  7. Method of constructing an improved electrochemical cell

    DOE Patents [OSTI]

    Grimes, Patrick G. (Westfield, NJ); Einstein, Harry (Springfield, NJ)

    1984-10-09T23:59:59.000Z

    An electrochemical cell construction features a novel co-extruded plastic electrode in an interleaved construction with a novel integral separator-spacer. Also featured is a leak and impact resistant construction for preventing the spill of corrosive materials in the event of rupture.

  8. Electrochemical construction

    DOE Patents [OSTI]

    Einstein, Harry (Springfield, NJ); Grimes, Patrick G. (Westfield, NJ)

    1983-08-23T23:59:59.000Z

    An electrochemical cell construction features a novel co-extruded plastic electrode in an interleaved construction with a novel integral separator-spacer. Also featured is a leak and impact resistant construction for preventing the spill of corrosive materials in the event of rupture.

  9. Reese 4/2004 GRADIENT GELS FOR SDS-PAGE

    E-Print Network [OSTI]

    Doering, Tamara

    and back white plates, 24 spacers and 12 18-space combs - buffers: - Separating gel buffer: 1.5 M tris. Then close, transfer whatever ran through back, and put the heavy solution in the empty chamber. 6 with distilled water, drain off (can dry by inserting filter paper). Then mix up stacker: Separating gel 4

  10. In Situ SERS Monitoring of Photochemistry within a Nanojunction Richard W. Taylor,

    E-Print Network [OSTI]

    Steiner, Ullrich

    . Coulston, Frank Biedermann, Sumeet Mahajan,*, Jeremy J. Baumberg,*, and Oren A. Scherman*, Nano re- views,13,26,27 as well as in frontier fields such as nano- medicine.28-31 The extreme EM nanoscale plasmonic architectures. Recently, we demonstrated that by using a rigid hollow macrocyclic spacer

  11. 390 PHYTOPATHOLOGY Evaluation of Molecular Markers for Phytophthora ramorum

    E-Print Network [OSTI]

    California at Berkeley, University of

    . Blomquist, and P. H. Berger First author: United States Department of Agriculture­Agricultural Research Institute of Forest Genetics, Saucier, MS; eleventh author: California Department of Food and Agriculture- chondrial cox spacer markers and most of the real-time assays based on nuclear markers (diagnostic

  12. Scope channel Photo-cathode UV laser light

    E-Print Network [OSTI]

    Timing results #12;5 ground Glass or ceramic insulation between ground and HV copper electrode Stack. Grid spacer or MCP is compressed with quartz window. Ground connection is provided by the top electrode 12258- 543 3nm Chem-2, 68nm Al2O3, 6nm 4hrs@400C ~20 8" chamber/ storage APS no 12258- 540 3nm Chem-2

  13. Fenestration of Today and Tomorrow: A State-of-the-Art Review and Future Opportunities

    E-Print Network [OSTI]

    ) and 0.30 W/(m2 K), which was from a suspended coating glazing product and an aerogel glazing product-cleaning glazing, low-emissivity coatings and spacers were also reviewed, thus also representing possibilities and solutions, electrochromic windows and aerogel glazing seem to have the largest potential for improving

  14. Lightweight, self-ballasting photovoltaic roofing assembly

    DOE Patents [OSTI]

    Dinwoodie, Thomas L.

    2006-02-28T23:59:59.000Z

    A photovoltaic roofing assembly comprises a roofing membrane (102), a plurality of photovoltaic modules (104, 106, 108) disposed as a layer on top of the roofing membrane (102), and a plurality of pre-formed spacers, pedestals or supports (112, 114, 116, 118, 120, 122) which are respectively disposed below the plurality of photovoltaic modules (104, 106, 108) and integral therewith, or fixed thereto. Spacers (112, 114, 116, 118, 120, 122) are disposed on top of roofing membrane (102). Membrane (102) is supported on conventional roof framing, and attached thereto by conventional methods. In an alternative embodiment, the roofing assembly may have insulation block (322) below the spacers (314, 314', 315, 315'). The geometry of the pre-formed spacers (112, 114, 116, 118, 120, 122, 314, 314', 315, 315') is such that wind tunnel testing has shown its maximum effectiveness in reducing net forces of wind uplift on the overall assembly. Such construction results in a simple, lightweight, self-ballasting, readily assembled roofing assembly which resists the forces of wind uplift using no roofing penetrations.

  15. Rapidly refuelable fuel cell

    DOE Patents [OSTI]

    Joy, Richard W. (Santa Clara, CA)

    1983-01-01T23:59:59.000Z

    This invention is directed to a metal-air fuel cell where the consumable metal anode is movably positioned in the cell and an expandable enclosure, or bladder, is used to press the anode into contact with separating spacers between the cell electrodes. The bladder may be depressurized to allow replacement of the anode when consumed.

  16. Alderaan Issue 5

    E-Print Network [OSTI]

    1979-01-01T23:59:59.000Z

    , As for the can- tina being like a Leiber's story ba ckground, I thin k it' s more Andre Norton. In either "The Zero Stone" or its sequel (I cannot recall the name, sorry! ) the rathe r nal ve hero and wi ser friend vi s it a seedy spacer bar in a notoriously bad...

  17. Lightweight, self-ballasting photovoltaic roofing assembly

    DOE Patents [OSTI]

    Dinwoodie, Thomas L. (Berkeley, CA)

    1998-01-01T23:59:59.000Z

    A photovoltaic roofing assembly comprises a roofing membrane (102), a plurality of photovoltaic modules (104, 106, 108) disposed as a layer on top of the roofing membrane (102), and a plurality of pre-formed spacers, pedestals or supports (112, 114, 116, 118, 120, 122) which are respectively disposed below the plurality of photovoltaic modules (104, 106, 108) and integral therewith, or fixed thereto. Spacers (112, 114, 116, 118, 120, 122) are disposed on top of roofing membrane (102). Membrane (102) is supported on conventional roof framing, and attached thereto by conventional methods. In an alternative embodiment, the roofing assembly may have insulation block (322) below the spacers (314, 314', 315, 315'). The geometry of the preformed spacers (112, 114, 116, 118, 120, 122, 314, 314', 315, 315') is such that wind tunnel testing has shown its maximum effectiveness in reducing net forces of wind uplift on the overall assembly. Such construction results in a simple, lightweight, self-ballasting, readily assembled roofing assembly which resists the forces of wind uplift using no roofing penetrations.

  18. Lightweight, self-ballasting photovoltaic roofing assembly

    DOE Patents [OSTI]

    Dinwoodie, T.L.

    1998-05-05T23:59:59.000Z

    A photovoltaic roofing assembly comprises a roofing membrane (102), a plurality of photovoltaic modules (104, 106, 108) disposed as a layer on top of the roofing membrane (102), and a plurality of pre-formed spacers, pedestals or supports (112, 114, 116, 118, 120, 122) which are respectively disposed below the plurality of photovoltaic modules (104, 106, 108) and integral therewith, or fixed thereto. Spacers (112, 114, 116, 118, 120, 122) are disposed on top of roofing membrane (102). Membrane (102) is supported on conventional roof framing, and attached thereto by conventional methods. In an alternative embodiment, the roofing assembly may have insulation block (322) below the spacers (314, 314', 315, 315'). The geometry of the preformed spacers (112, 114, 116, 118, 120, 122, 314, 314', 315, 315') is such that wind tunnel testing has shown its maximum effectiveness in reducing net forces of wind uplift on the overall assembly. Such construction results in a simple, lightweight, self-ballasting, readily assembled roofing assembly which resists the forces of wind uplift using no roofing penetrations.

  19. Graphene Coating Coupled Emission

    E-Print Network [OSTI]

    Shyamasundar, R.K.

    Graphene Coating Coupled Emission A COMSET, A single sheet of sp2-hybridized carbon atoms, called of graphene and its unique properties, I will present amplification of surface graphene-Ag hybrid films which when graphene is used as the spacer layer in a conventional Ag- harnessed the nonlinear properties

  20. Phase diagram of magnetic domain walls in spin valve nano-stripes N. Rougemaille,1

    E-Print Network [OSTI]

    Boyer, Edmond

    Phase diagram of magnetic domain walls in spin valve nano-stripes N. Rougemaille,1 V. UhlĂ­,2, 1 O walls in Co/Cu/Py spin valve nano-stripes (Py: Permalloy), in which the Co layer is mostly single domain Magneto- Resistance. These stacking are called spin valve for a metal spacer layer, and pseudo spin valve