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


1

Multiple concentric annuli for characterizing spatially nonuniform backgrounds  

E-Print Network [OSTI]

A method is presented for estimating the background at a given location on a sky map by interpolating the estimated background from a set of concentric annuli which surround this location. If the background is nonuniform but smoothly varying, this method provides a more accurate (though less precise) estimate than can be obtained with a single annulus. Several applications of multi-annulus background estimation are discussed, including direct testing for point sources in the presence of a nonuniform background, the generation of "surrogate maps" for characterizing false alarm rates, and precise testing of the null hypothesis that the background is uniform.

James Theiler; Jeff Bloch

1999-01-26T23:59:59.000Z

2

Origami manifolds  

E-Print Network [OSTI]

An origami manifold is a manifold equipped with a closed 2-form which is symplectic everywhere except on a hypersurface, where it is a folded form whose kernel defines a circle fibration. In this thesis I explain how an ...

Pissarra Pires, Ana Rita

2010-01-01T23:59:59.000Z

3

ORALLOY (93.15 235U) METAL ANNULI WITH BERYLLIUM CORE  

SciTech Connect (OSTI)

A variety of critical experiments were constructed of enriched uranium metal during the 1960s and 1970s at the Oak Ridge Critical Experiments Facility (ORCEF) in support of criticality safety operations at the Y-12 Plant. The purposes of these experiments included the evaluation of storage, casting, and handling limits for the Y-12 Plant and providing data for verification of calculation methods and cross-sections for nuclear criticality safety applications. These included solid cylinders of various diameters, annuli of various inner and outer diameters, two and three interacting cylinders of various diameters, and graphite and polyethylene reflected cylinders and annuli. Of the hundreds of delayed critical experiments, two were performed that consisted of uranium metal annuli with a solid beryllium metal core. The outer diameter of the annuli was approximately 13 or 15 inches with an inner diameter of 7 inches. The diameter of the core was approximately 7 inches. The critical height of the configurations was approximately 5 and 4 inches, respectively. The uranium annuli consisted of multiple stacked rings with diametral thicknesses of approximately 2 inches apiece and varying heights. The 15-inch experiment was performed on June 4, 1963, and the 13-inch experiment on July 12, 1963 by J. T. Mihalczo and R. G. Taylor (Ref. 1) with accompanying logbook. Both detailed and simplified model specifications are provided in this evaluation. Both of these fast-spectra experiments were determined to represent acceptable benchmarks. The calculated eigenvalues for both the detailed and simple models are within approximately 0.6% of the benchmark values, but significantly greater than 3s from the benchmark value because the uncertainty in the benchmark is very small: <±0.0004 (1s). There is significant variability between results using different neutron cross section libraries, the greatest being a ?keff of ~0.67%. Unreflected and unmoderated experiments with the same highly enriched uranium metal parts were performed at the Oak Ridge Critical Experiments Facility in the 1960s and are evaluated in HEU MET FAST 051. Thin graphite reflected (2 inches or less) experiments also using the same highly enriched uranium metal parts are evaluated in HEU MET FAST 071. Polyethylene-reflected configurations are evaluated in HEU-MET-FAST-076. A stack of highly enriched metal discs with a thick beryllium reflector is evaluated in HEU-MET-FAST-069.

John D. Bess; Leland M. Montierth; Raymond L. Reed; John T. Mihalczo

2010-09-01T23:59:59.000Z

4

Manifold Integration: Data Integration on Multiple Manifolds  

E-Print Network [OSTI]

In data analysis, data points are usually analyzed based on their relations to other points (e.g., distance or inner product). This kind of relation can be analyzed on the manifold of the data set. Manifold learning is an approach to understand...

Choi, Hee Youl

2011-08-08T23:59:59.000Z

5

Two delayed critical uranium (93.2) metal cylindrical annuli with central Be moderation  

SciTech Connect (OSTI)

Two cylindrical annuli of uranium metal were assembled to delayed criticality in 1963 with beryllium metal in the center to study the effects of beryllium to provide data for verification of neutron transport theory methods including cross section data for criticality safety calculations. These systems were assembled on a vertical assembly machine in the East cell of the Oak Ridge Critical Experiments Facility. The annuli was divided into two halves with the upper fixed half supported by a 0.010-in-thick, 30-in-diam stainless steel (type 304) diaphragm. The lower half which was hydraulically movable was supported on a very low mass tower consisting of mainly three 0.125-in-thick vertical pieces 120{degree} apart. These systems, when assembled to delayed criticality, were located in 35 x 35 x 30 ft. high experimental room, 11.7 ft from the 5-ft-thick West wall, 12.7 ft. from the 2-ft-thick North wall and 9.2 ft. above the concrete floor. When assembled the positive reactor period measured was +403 sec for the nominal 15-in-OD assembly and +31 sec for nominal 13-in-OD assembly. The reactivity effects of nearby materials such as the support ring (+) for the diaphragm, the diaphragm ({minus}) and the lower support stand(+) were evaluated. The total reactivity worths of the nearby support materials were 8.9 and 5.4 cents for the 15-in-OD and 13-in-OD assemblies, respectively. The reactivity effect of each of the components was measured for the nominal 13-in-OD assembly and they were {minus}11.2 cents for the diaphragm, +4.4 cents for the support ring, and +12.2 cents for the support stand.

Mihalczo, J.T.; Bentzinger, D.L.

1997-08-01T23:59:59.000Z

6

Compressed gas manifold  

DOE Patents [OSTI]

A compressed gas storage cell interconnecting manifold including a thermally activated pressure relief device, a manual safety shut-off valve, and a port for connecting the compressed gas storage cells to a motor vehicle power source and to a refueling adapter. The manifold is mechanically and pneumatically connected to a compressed gas storage cell by a bolt including a gas passage therein.

Hildebrand, Richard J. (Edgemere, MD); Wozniak, John J. (Columbia, MD)

2001-01-01T23:59:59.000Z

7

Edge compression manifold apparatus  

DOE Patents [OSTI]

A manifold for connecting external capillaries to the inlet and/or outlet ports of a microfluidic device for high pressure applications is provided. The fluid connector for coupling at least one fluid conduit to a corresponding port of a substrate that includes: (i) a manifold comprising one or more channels extending therethrough wherein each channel is at least partially threaded, (ii) one or more threaded ferrules each defining a bore extending therethrough with each ferrule supporting a fluid conduit wherein each ferrule is threaded into a channel of the manifold, (iii) a substrate having one or more ports on its upper surface wherein the substrate is positioned below the manifold so that the one or more ports is aligned with the one or more channels of the manifold, and (iv) device to apply an axial compressive force to the substrate to couple the one or more ports of the substrate to a corresponding proximal end of a fluid conduit.

Renzi, Ronald F. (Tracy, CA)

2007-02-27T23:59:59.000Z

8

High power laser perforating tools and systems  

DOE Patents [OSTI]

ystems devices and methods for the transmission of 1 kW or more of laser energy deep into the earth and for the suppression of associated nonlinear phenomena. Systems, devices and methods for the laser perforation of a borehole in the earth. These systems can deliver high power laser energy down a deep borehole, while maintaining the high power to perforate such boreholes.

Zediker, Mark S; Rinzler, Charles C; Faircloth, Brian O; Koblick, Yeshaya; Moxley, Joel F

2014-04-22T23:59:59.000Z

9

Oriented perforations -- A rock mechanics view  

SciTech Connect (OSTI)

Hydraulic fracture initiation dictates the communication path between the wellbore and fracture plane. Nonplanar fracture geometries such as multiple, T-Shaped, and reoriented fractures are not advantageous and they adversely affect the potential to achieve a desired stimulation treatment. Oriented perforations can be the solution to initiate a single wide fracture in vertical and deviated wells. Also oriented perforations may be used to create stable tunnels in poorly consolidated formations thus avoiding sand failure and consequently preventing sand production. This paper presents laboratory experimental results related to oriented perforations for hydraulic fracturing. It also discusses the use of oriented perforation for sand control. Experiments were designed to investigate the effect of perforation orientation in vertical and horizontal wells on hydraulic fracturing treatment.

Abass, H.H.; Meadows, D.L.; Brumley, J.L.; Hedayati, S.; Venditto, J.J.

1995-11-01T23:59:59.000Z

10

Ungulate Carcasses Perforate Ecological Filters and Create  

E-Print Network [OSTI]

2007). Forest biodiversity, energy flow, nutrient cycling, and regeneration are significantly affectedUngulate Carcasses Perforate Ecological Filters and Create Biogeochemical Hotspots in Forest. Vucetich, Rolf O. Peterson, Joshua M. Shields, and Matthew D. Powers School of Forest Resources

11

Manifold tool guide  

DOE Patents [OSTI]

A tool guide is described that makes possible the insertion of cleaning and/or inspection tools into a manifold pipe that will dislocate and extract the accumulated sediment in such manifold pipes. The tool guide basically comprises a right angled tube (or other angled tube as required) which can be inserted in a large tube and locked into a radially extending cross pipe by adjustable spacer rods and a spring-loaded cone, whereby appropriate cleaning tools can be inserted into the cross pipe for cleaning, inspection, etc. 3 figs.

Djordjevic, A.

1983-12-27T23:59:59.000Z

12

Manifold tool guide  

DOE Patents [OSTI]

A tool guide that makes possible the insertion of cleaning and/or inspection tools into a manifold pipe that will dislocate and extract the accumulated sediment in such manifold pipes. The tool guide basically comprises a right angled tube (or other angled tube as required) which can be inserted in a large tube and locked into a radially extending cross pipe by adjustable spacer rods and a spring-loaded cone, whereby appropriate cleaning tools can be inserted into to cross pipe for cleaning, inspection, etc.

Djordjevic, A.

1982-07-08T23:59:59.000Z

13

Manifold tool guide  

DOE Patents [OSTI]

A tool guide that makes possible the insertion of cleaning and/or inspection tools into a manifold pipe that will dislocate and extract the accumulated sediment in such manifold pipes. The tool guide basically comprises a right angled tube (or other angled tube as required) which can be inserted in a large tube and locked into a radially extending cross pipe by adjustable spacer rods and a spring-loaded cone, whereby appropriate cleaning tools can be inserted into to cross pipe for cleaning, inspection, etc.

Djordjevic, Aleksandar (Thousand Oaks, CA)

1983-12-27T23:59:59.000Z

14

Dual manifold heat pipe evaporator  

DOE Patents [OSTI]

An improved evaporator section for a dual manifold heat pipe. Both the upper and lower manifolds can have surfaces exposed to the heat source which evaporate the working fluid. The tubes in the tube bank between the manifolds have openings in their lower extensions into the lower manifold to provide for the transport of evaporated working fluid from the lower manifold into the tubes and from there on into the upper manifold and on to the condenser portion of the heat pipe. A wick structure lining the inner walls of the evaporator tubes extends into both the upper and lower manifolds. At least some of the tubes also have overflow tubes contained within them to carry condensed working fluid from the upper manifold to pass to the lower without spilling down the inside walls of the tubes.

Adkins, Douglas R. (Albuquerque, NM); Rawlinson, K. Scott (Albuquerque, NM)

1994-01-01T23:59:59.000Z

15

Dual manifold heat pipe evaporator  

DOE Patents [OSTI]

An improved evaporator section is described for a dual manifold heat pipe. Both the upper and lower manifolds can have surfaces exposed to the heat source which evaporate the working fluid. The tubes in the tube bank between the manifolds have openings in their lower extensions into the lower manifold to provide for the transport of evaporated working fluid from the lower manifold into the tubes and from there on into the upper manifold and on to the condenser portion of the heat pipe. A wick structure lining the inner walls of the evaporator tubes extends into both the upper and lower manifolds. At least some of the tubes also have overflow tubes contained within them to carry condensed working fluid from the upper manifold to pass to the lower without spilling down the inside walls of the tubes. 1 figure.

Adkins, D.R.; Rawlinson, K.S.

1994-01-04T23:59:59.000Z

16

Poincare's Conjecture for three manifolds  

E-Print Network [OSTI]

We prove Poincare's Conjecture that every simply connected, closed three-manifold is topologically equivalent to the three-sphere. The proof is founded on the algebraic formulation discovered by J. Stallings.

G. S. Makanin

2007-11-23T23:59:59.000Z

17

The instrumented dynamic perforation test applied to a composite shell  

E-Print Network [OSTI]

The instrumented dynamic perforation test applied to a composite shell S. Pattofatto, H. Tsitsiris Wilson, F-94230 Cachan, France Abstract. Perforation tests are commonly used on composites but give limited results. In this study, a single layer of a thermoplastic woven composite is tested at high

Paris-Sud XI, Université de

18

Subcritical Stein manifolds are split K. Cieliebak  

E-Print Network [OSTI]

Subcritical Stein manifolds are split K. Cieliebak April 30, 2002 1 Introduction This note concerns the following little observation. Theorem 1.1. Every subcritical Stein manifold (domain) is deformation equiv domains are compact, whereas Stein manifolds are noncompact. Subcritical. It is well

Cieliebak, Kai

19

Evaluation of Perforated Carbonate Cores Under Acid Stimulation  

E-Print Network [OSTI]

-moving jet of particles, which is able to pass through the gun body, casing, cement and formation in the same way as conventional charges. Then the liner materials deposited in the perforation tunnels react exothermically, generating heat and pressure... generates a secondary reaction immediately after deployment. This exothermic reaction is driven by the liner metallurgic properties, resulting in an increase of 11 temperature and pressure in the perforation tunnels. The increase in pressure causes...

Diaz, Nerwing Jose

2011-10-21T23:59:59.000Z

20

Shelling in low dimensional manifolds  

E-Print Network [OSTI]

topological n-cell. Note that each n-manifold is an n-manifold with boundary. The set of points of M which do not have a ~ 'Ebb hdh fbi g f h~bd fM. d fdby n Bd(M). The interior of M is denoted by Int(M) and defined by Int(M) = M ? Bd(M) . AMb-'fld. d f1... the style of the Proceedings of the American Mathematical Society. M and h n Bd(M) is an (n ? 1)-cell, then h is said to be free in M. Suppose S is a subset of M and T is a cellular decomposition of S. S can be shelled from M relative...

Murray, William Owen

1974-01-01T23:59:59.000Z

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


21

Manifold seal for fuel cell stack assembly  

DOE Patents [OSTI]

An assembly for sealing a manifold to a stack of fuel cells includes a first resilient member for providing a first sealing barrier between the manifold and the stack. A second resilient member provides a second sealing barrier between the manifold and the stack. The first and second resilient members are retained in such a manner as to define an area therebetween adapted for retaining a sealing composition.

Schmitten, Phillip F. (N. Huntingdon, PA); Wright, Maynard K. (Bethel Park, PA)

1989-01-01T23:59:59.000Z

22

Hamilton Dynamics on Clifford Kaehler Manifolds  

E-Print Network [OSTI]

This paper presents Hamilton dynamics on Clifford Kaeler manifolds. In the end, the some results related to Clifford Kaehler dynamical systems are also discussed.

Mehmet Tekkoyun

2009-02-24T23:59:59.000Z

23

Characterization of cardiac lead perforation risk via a dynamic simulated environment  

E-Print Network [OSTI]

Delayed cardiac perforation is a serious medical condition where an implanted cardiac lead migrates through the heart wall, causing life-threatening complications. Where acute perforation occurs during implant, delayed ...

Rosario, Matthew J

2012-01-01T23:59:59.000Z

24

Index theorems and magnetic monopoles on asymptotically conic manifolds  

E-Print Network [OSTI]

In this thesis, I investigate the index of Callias type operators on asymptotically conic manifolds (also known as asymptotically locally Euclidean manifolds or scattering manifolds) and give an application to the moduli ...

Kottke, Christopher N. (Christopher Nicholas)

2010-01-01T23:59:59.000Z

25

Tubing pressurized firing apparatus for a tubing conveyed perforating gun  

SciTech Connect (OSTI)

A tubing pressurized firing apparatus is shown for use with a tubing conveyed perforating gun of the type used to perforate a cased well bore. The firing apparatus has a tubular body with an upper end for connection in the well tubing string and with a lower end for connection to a well perforating gun. An inner mandrel is slidably mounted within the tubular body and has a ball seat formed in the interior bore thereof for receiving a ball dropped through the well tubing string. The ball and ball seat together form a pressure tight seal whereby tubing pressure in the well tubing string acts on the inner mandrel to slide the mandrel downwardly within the tubular body. A cocking mechanism located below the inner mandrel within the body includes a lockout member which is initially positioned between a detonating pin and a percussion detonator. The cocking mechanism is actuated by downward sliding movement of the inner mandrel to move the lockout member from between the detonating pin and percussion detonator whereby a subsequent release of tubing pressure and upward sliding movement of the inner mandrel exposes the detonating pin to the percussion detonator to actuate the detonator and fire the perforating gun.

Davies, D. L.

1985-11-26T23:59:59.000Z

26

Efficiency of perforated breakwater and associated energy dissipation  

E-Print Network [OSTI]

The flow field behavior in the vicinity of a perforated breakwater and the efficiency of the breakwater under regular waves were studied. To examine the efficiency of the structure thirteen types of regular wave conditions with wave periods T = 1, 1...

Ariyarathne, Hanchapola Appuhamilage

2009-05-15T23:59:59.000Z

27

Efficiency of perforated breakwater and associated energy dissipation  

E-Print Network [OSTI]

The flow field behavior in the vicinity of a perforated breakwater and the efficiency of the breakwater under regular waves were studied. To examine the efficiency of the structure thirteen types of regular wave conditions with wave periods T = 1, 1...

Ariyarathne, Hanchapola Appuhamilage

2008-10-10T23:59:59.000Z

28

Optimal Transportation on Sub-Riemannian Manifolds  

E-Print Network [OSTI]

Optimal Transportation on Sub-Riemannian Manifolds Ludovic Rifford Universit´e de Nice - Sophia Antipolis (Joint work with A. Figalli) Ludovic Rifford Optimal Transportation on Sub-Riemannian Manifolds #12;Monge's Optimal Transportation Problem Let M be a separable metric space equipped with its Borel

Rifford, Ludovic

29

Optimal Transportation on Sub-Riemannian Manifolds  

E-Print Network [OSTI]

Optimal Transportation on Sub-Riemannian Manifolds Ludovic Rifford Universit´e de Nice - Sophia Antipolis (Joint work with A. Figalli) Ludovic Rifford Optimal Transportation on Sub-Riemannian Manifolds #12;Outline I. Statement of our optimal transportation problem II. Sketch of proof of the Mc

Rifford, Ludovic

30

GEODESIC INTERSECTIONS IN ARITHMETIC HYPERBOLIC 3-MANIFOLDS  

E-Print Network [OSTI]

GEODESIC INTERSECTIONS IN ARITHMETIC HYPERBOLIC 3-MANIFOLDS Kerry N. Jones Alan W. Reid Abstract. It was shown by Chinburg and Reid that there exist closed hyperbolic 3-manifolds in which all closed geodesics closed geodesics simple and disjoint. The natural conjecture arose that the Chinburg-Reid examples also

Jones, Kerry N.

31

Heterotic Model Building: 16 Special Manifolds  

E-Print Network [OSTI]

We study heterotic model building on 16 specific Calabi-Yau manifolds constructed as hypersurfaces in toric four-folds. These 16 manifolds are the only ones among the more than half a billion manifolds in the Kreuzer-Skarke list with a non-trivial first fundamental group. We classify the line bundle models on these manifolds, both for SU(5) and SO(10) GUTs, which lead to consistent supersymmetric string vacua and have three chiral families. A total of about 29000 models is found, most of them corresponding to SO(10) GUTs. These models constitute a starting point for detailed heterotic model building on Calabi-Yau manifolds in the Kreuzer-Skarke list. The data for these models can be downloaded here: http://www-thphys.physics.ox.ac.uk/projects/CalabiYau/toricdata/index.html

Yang-Hui He; Seung-Joo Lee; Andre Lukas; Chuang Sun

2014-05-13T23:59:59.000Z

32

Magnetic Resonance Imaging (MRI) of PEM Dehydration and Gas Manifold...  

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

Resonance Imaging (MRI) of PEM Dehydration and Gas Manifold Flooding During Continuous Fuel Cell Operation. Magnetic Resonance Imaging (MRI) of PEM Dehydration and Gas Manifold...

33

Simplicial isotopies in 3-manifolds  

E-Print Network [OSTI]

to Euclidean n-space E . n A - oifold with ~bo da is a s p ahle et i sp t such that each point has a neighborhood homeomorphic to an n-cell. The boundary of M is denoted by Bd(M), and is defined to be the set of all points in M which do not have a...-simplex (p=2, 3) C of a triangulation T of a p- manifold with boundary N is said to be free in N if C A Bd(M) is a (p-1) - simplex of T or if C = M . M can be shelled if the p-simplexes of T can be given on ordering Cl, C2, . . . such that C. is free...

O'Donnell, Daniel Francis

1974-01-01T23:59:59.000Z

34

Poverty of the Stimulus? A Rational Approach Amy Perfors1 (perfors@mit.edu), Joshua B. Tenenbaum1 (jbt@mit.edu),  

E-Print Network [OSTI]

Poverty of the Stimulus? A Rational Approach Amy Perfors1 (perfors@mit.edu), Joshua B. Tenenbaum1, MIT; 2 Department of Psychology, University of Chicago Abstract The Poverty of the Stimulus (Po that these generalizations can best be explained by innate knowledge, known as the argument from the Poverty of the Stimulus

Tenenbaum, Josh

35

Perforated plates for cryogenic regenerators and method of fabrication  

DOE Patents [OSTI]

Perforated plates (10) having very small holes (14) with a uniform diameter throughout the plate thickness are prepared by a "wire drawing" process in which a billet of sacrificial metal is disposed in an extrusion can of the plate metal, and the can is extruded and restacked repeatedly, converting the billet to a wire of the desired hole diameter. At final size, the rod is then sliced into wafers, and the wires are removed by selective etching. This process is useful for plate metals of interest for high performance regenerator applications, in particular, copper, niobium, molybdenum, erbium, and other rare earth metals. Er.sub.3 Ni, which has uniquely favorable thermophysical properties for such applications, may be incorporated in regions of the plates by providing extrusion cans (20) containing erbium and nickel metals in a stacked array (53) with extrusion cans of the plate metal, which may be copper. The array is heated to convert the erbium and nickel metals to Er.sub.3 Ni. Perforated plates having two sizes of perforations (38, 42), one of which is small enough for storage of helium, are also disclosed.

Hendricks, John B. (Huntsville, AL)

1994-01-01T23:59:59.000Z

36

Perforated plates for cryogenic regenerators and method of fabrication  

DOE Patents [OSTI]

Perforated plates having very small holes with a uniform diameter throughout the plate thickness are prepared by a [open quotes]wire drawing[close quotes] process in which a billet of sacrificial metal is disposed in an extrusion can of the plate metal, and the can is extruded and restacked repeatedly, converting the billet to a wire of the desired hole diameter. At final size, the rod is then sliced into wafers, and the wires are removed by selective etching. This process is useful for plate metals of interest for high performance regenerator applications, in particular, copper, niobium, molybdenum, erbium, and other rare earth metals. Er[sub 3]Ni, which has uniquely favorable thermophysical properties for such applications, may be incorporated in regions of the plates by providing extrusion cans containing erbium and nickel metals in a stacked array with extrusion cans of the plate metal, which may be copper. The array is heated to convert the erbium and nickel metals to Er[sub 3]Ni. Perforated plates having two sizes of perforations, one of which is small enough for storage of helium, are also disclosed. 10 figures.

Hendricks, J.B.

1994-03-29T23:59:59.000Z

37

Project Development Specification for Valve Pit Manifold  

SciTech Connect (OSTI)

Establishes the performance, design development, and test requirements for the valve pit manifolds. The system engineering approach was used to develop this document in accordance with the guidelines laid out in the Systems Engineering Management Plan for Project W-314.

MCGREW, D.L.

2000-09-28T23:59:59.000Z

38

Inflow performance relationship for perforated wells producing from solution gas drive reservoir  

SciTech Connect (OSTI)

The IPR curve equations, which are available today, are developed for open hole wells. In the application of Nodal System Analysis in perforated wells, an accurate calculation of pressure loss in the perforation is very important. Nowadays, the equation which is widely used is Blount, Jones and Glaze equation, to estimate pressure loss across perforation. This equation is derived for single phase flow, either oil or gas, therefore it is not suitable for two-phase production wells. In this paper, an IPR curve equation for perforated wells, producing from solution gas drive reservoir, is introduced. The equation has been developed using two phase single well simulator combine to two phase flow in perforation equation, derived by Perez and Kelkar. A wide range of reservoir rock and fluid properties and perforation geometry are used to develop the equation statistically.

Sukarno, P. [Inst. Teknologi Bandung (Indonesia); Tobing, E.L.

1995-10-01T23:59:59.000Z

39

E-Print Network 3.0 - armoured vehicles perforated Sample Search...  

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

Powered by Explorit Topic List Advanced Search Sample search results for: armoured vehicles perforated Page: << < 1 2 3 4 5 > >> 1 Super Bainite (High Hardness) Steel Super...

40

E-Print Network 3.0 - acquired reactive perforating Sample Search...  

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

Technologies and Information Sciences 2 Thesis for the Degree of Licentiate of Philosophy Reactive Shared Objects Summary: variations in order to achieve good perfor- mance...

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


41

E-Print Network 3.0 - acute gallbladder perforation Sample Search...  

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

semantic searches, or searches based on concepts... in which the order of the search terms does not matter. For example, a search for "perforated gallbladder... " will match...

42

E-Print Network 3.0 - acquired perforating dermatosis Sample...  

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

Biology and Medicine ; Environmental Sciences and Ecology 8 Managing Performance vs. Accuracy Trade-offs With Loop Perforation Summary: Managing Performance vs. Accuracy...

43

How perforation shot density affects gas well performance  

SciTech Connect (OSTI)

The single gas well model is formulated using the systems analysis approach and is composed of three main modules. The first module is the modified inflow performance relationship (IPR). This IPR accounts for pressure drops through the reservoir, laminar skin and damaged, compacted zone around casing perforations. The second module is the tubing outflow performance computed via the Cullender and Smith method. The third module is the gas material balance equation for computing average well pressure with a given gas production level. By coupling this equation with the computed inflow and outflow results, future gas deliverability and economic return of a gas well can then be projected.

Cheng, A.M.C.

1988-03-01T23:59:59.000Z

44

Drilling long geodesics in hyperbolic 3-manifolds K. Bromberg  

E-Print Network [OSTI]

Drilling long geodesics in hyperbolic 3-manifolds K. Bromberg September 22, 2006 1 Introduction to such a deformation as drilling and results which compare the geometry of the original manifold to the geometry of the drilled manifold as drilling theorems. The first results of this type are due to Hodgson and Kerckhoff

Bromberg, Kenneth

45

EMBEDDINGS IN GENERALIZED MANIFOLDS J. L. BRYANT AND W. MIO  

E-Print Network [OSTI]

EMBEDDINGS IN GENERALIZED MANIFOLDS J. L. BRYANT AND W. MIO Abstract. We prove that a (2m \\Gamma n grant DMS­9626624. 1 #12; 2 J. L. BRYANT AND W. MIO theory, for removing intersections of manifolds­manifold with the DDP , n â?? 5, could be approximated by embeddings [5]. Bryant [2] and Walsh [20] were able to establish

Aluffi, Paolo

46

Connections on statistical manifolds of density operators by geometry of  

E-Print Network [OSTI]

of statistical manifolds, that is of manifolds whose points can be identified with density functions with respect to a certain measure µ. The classical references for the theory can be found in the books [1, 2, 4Connections on statistical manifolds of density operators by geometry of noncommutative Lp -spaces

Isola, Tommaso

47

SYMPLECTIC TOPOLOGY ON SUBCRITICAL MANIFOLDS PAUL BIRAN AND KAI CIELIEBAK  

E-Print Network [OSTI]

SYMPLECTIC TOPOLOGY ON SUBCRITICAL MANIFOLDS PAUL BIRAN AND KAI CIELIEBAK 1. Introduction The study of the symplectic topology of Stein manifolds leads naturally to two distinct subclasses: subcritical and critical. A Stein manifold is called subcritical if it admits a plurisubharmonic function which has only critical

Cieliebak, Kai

48

Mechanical seal having a single-piece, perforated mating ring  

DOE Patents [OSTI]

A mechanical seal (e.g., single mechanical seals, double mechanical seals, tandem mechanical seals, bellows, pusher mechanical seals, and all types of rotating and reciprocating machines) with reduced contact surface temperature, reduced contact surface wear, or increased life span. The mechanical seal comprises a rotating ring and a single-piece, perforated mating ring, which improves heat transfer by controllably channeling coolant flow through the single-piece mating ring such that the coolant is in substantially uniform thermal contact with a substantial portion of the interior surface area of the seal face, while maintaining the structural integrity of the mechanical seal and minimizing the potential for coolant flow interruptions to the seal face caused by debris or contaminants (e.g., small solids and trash) in the coolant.

Khonsari, Michael M. (Baton Rouge, LA); Somanchi, Anoop K. (Fremont, CA)

2007-08-07T23:59:59.000Z

49

THE GEOMETRIES OF 3-MANIFOLDS PETER SCOTT  

E-Print Network [OSTI]

that each smooth path on S2 has a length, namely its length as a path in £3 . (I shall consistently use ETHE GEOMETRIES OF 3-MANIFOLDS PETER SCOTT Page §1. The 2-dimensional geometries 405 §2. Geometric. The eight 3-dimensional geometries 441 E3 443 H3 448 S3 449 S2 x U 457 fPxM 459 SL2U 462 Nil 467 Sol 470 §5

Schleimer, Saul

50

Port-Hamiltonian systems on discrete manifolds  

E-Print Network [OSTI]

This paper offers a geometric framework for modeling port-Hamiltonian systems on discrete manifolds. The simplicial Dirac structure, capturing the topological laws of the system, is defined in terms of primal and dual cochains related by the coboundary operators. This finite-dimensional Dirac structure, as discrete analogue of the canonical Stokes-Dirac structure, allows for the formulation of finite-dimensional port-Hamiltonian systems that emulate the behaviour of the open distributed-parameter systems with Hamiltonian dynamics.

Marko Seslija; Jacquelien M. A. Scherpen; Arjan van der Schaft

2012-01-27T23:59:59.000Z

51

AIP/123-QED Acoustic properties of plates with unevenly distributed macro perforations backed by  

E-Print Network [OSTI]

be a difficult task in practical acoustic engineering applications. Furthermore, drilling a large amount, the best performance for perforated panels is obtained for submillimetric holes. As recom- mended by Maa1

Paris-Sud XI, Université de

52

Energy-momentum balance in particle - domain wall perforating collision  

E-Print Network [OSTI]

We investigate the energy-momentum balance in the perforating collision of a point particle with an infinitely thin planar domain wall within the linearized gravity in arbitrary dimensions. Since the metric of the wall increases with distance, the wall and the particle are never free, and their energy-momentum balance involves not only the instantaneous kinetic momenta, but also the non-local contribution of gravitational stresses. However, careful analysis shows that the stresses can be unambiguously divided between the colliding objects leading to definition of the gravitationally dressed momenta. These take into account for gravity in the same way as the potential energy does in the non-relativistic theory, but our treatment is fully relativistic. Another unusual feature of our problem is the non-vanishing flux of the total energy-momentum tensor through the lateral surface of the world tube. In this case the zero divergence of the energy-momentum tensor does not imply conservation of the total momentum defined as the integral over the space-like section of the tube. But one can still define the conservation low infinitesimally, passing to time derivatives of the momenta. Using this definition we establish the momentum balance in terms of the dressed particle and wall momenta.

D. V. Gal'tsov; E. Yu. Melkumova; P. A. Spirin

2015-02-10T23:59:59.000Z

53

D-branes on group manifolds and fusion rings  

E-Print Network [OSTI]

In this paper we compute the charge group for symmetry preserving D-branes on group manifolds for all simple, simply-connected, connected compact Lie groups G.

P. Bouwknegt; P. Dawson; D. Ridout

2002-10-31T23:59:59.000Z

54

audio localization manifold: Topics by E-print Network  

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

Algorithm Computer Technologies and Information Sciences Websites Summary: for LTSA in a special case. 1 Introduction Manifold learning (ML) methods have attracted...

55

Nonrelativistic hydrogen type stability problems on nonparabolic 3-manifolds  

E-Print Network [OSTI]

We extend classical Euclidean stability theorems corresponding to the nonrelativistic Hamiltonians of ions with one electron to the setting of non parabolic Riemannian 3-manifolds.

Batu Güneysu

2012-03-19T23:59:59.000Z

56

Engine Air Intake Manifold Having Built In Intercooler  

DOE Patents [OSTI]

A turbocharged V type engine can be equipped with an exhaust gas recirculation cooler integrated into the intake manifold, so as to achieve efficiency, cost reductions and space economization improvements. The cooler can take the form of a tube-shell heat exchanger that utilizes a cylindrical chamber in the air intake manifold as the heat exchanger housing. The intake manifold depends into the central space formed by the two banks of cylinders on the V type engine, such that the central space is effectively utilized for containing the manifold and cooler.

Freese, V, Charles E. (Westland, MI)

2000-09-12T23:59:59.000Z

57

Optical manifold for light-emitting diodes  

DOE Patents [OSTI]

An optical manifold for efficiently combining a plurality of blue LED outputs to illuminate a phosphor for a single, substantially homogeneous output, in a small, cost-effective package. Embodiments are disclosed that use a single or multiple LEDs and a remote phosphor, and an intermediate wavelength-selective filter arranged so that backscattered photoluminescence is recycled to boost the luminance and flux of the output aperture. A further aperture mask is used to boost phosphor luminance with only modest loss of luminosity. Alternative non-recycling embodiments provide blue and yellow light in collimated beams, either separately or combined into white.

Chaves, Julio C.; Falicoff, Waqidi; Minano, Juan C.; Benitez, Pablo; Parkyn Jr., William A.; Alvarez, Roberto; Dross, Oliver

2008-06-03T23:59:59.000Z

58

E-Print Network 3.0 - approximating principal manifolds Sample...  

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

Sciences 6 Dyson series Lie manifolds Summary: )u(0, y)dy. Main technique: Approximate GL t (x, y). Victor Nistor Dyson series, Lie Manifolds, & PDEs... manifolds for the...

59

Interference evaluation between manifold and wet Christmas tree CP systems  

SciTech Connect (OSTI)

Offshore production wells are controlled by valves installed in the marine soil, called wet Christmas trees (WCTs). A manifold receives the production of several wells and transports it to the platform. The manifold is cathodically protected by Al anodes and the WCT by Zn anodes. A computer simulation was carried out to evaluate the interference between the equipment cathodic protection systems.

Brasil, S.L.D.C.; Baptista, W.

2000-05-01T23:59:59.000Z

60

How to project `circular' manifolds using geodesic distances?  

E-Print Network [OSTI]

How to project `circular' manifolds using geodesic distances? John Aldo Lee, Michel Verleysen,verleysen}@dice.ucl.ac.be Abstract. Recent papers have clearly shown the advantage of using the geodesic distance instead strongly crumpled manifolds have to be un- folded. Nevertheless, neither the Euclidean nor the geodesic

Verleysen, Michel

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


61

Geodesic Regression on Riemannian Manifolds P. Thomas Fletcher  

E-Print Network [OSTI]

Geodesic Regression on Riemannian Manifolds P. Thomas Fletcher School of Computing, University a manifold-valued random variable and a real-valued independent parameter. The principle is to fit a geodesic is evaluated as the sum-of-squared geodesic distances from the model to the data, and this provides

Boyer, Edmond

62

EMBEDDINGS IN GENERALIZED MANIFOLDS J. L. BRYANT AND W. MIO  

E-Print Network [OSTI]

EMBEDDINGS IN GENERALIZED MANIFOLDS J. L. BRYANT AND W. MIO Abstract. We prove that a (2m \\Gamma n supported by NSF grant DMS­9626624. 1 #12; 2 J. L. BRYANT AND W. MIO specifically, we establish analogues­manifold with the DDP , n â?? 5, could be approximated by embeddings [5]. Bryant [2] and Walsh [20] were able to establish

Mio, Washington

63

EMBEDDINGS IN GENERALIZED MANIFOLDS J. L. BRYANT AND W. MIO  

E-Print Network [OSTI]

EMBEDDINGS IN GENERALIZED MANIFOLDS J. L. BRYANT AND W. MIO Abstract. We prove that a 2m,n+1 manifolds,embeddings. Partially supported by NSF grant DMS-9626624. 1 #12;2 J. L. BRYANT AND W. MIO speci . Bryant 2 and Walsh 20 were able to establish general position theorems for maps of arbitrary polyhedra

Mio, Washington

64

A construction of a nonparametric quantum information manifold  

E-Print Network [OSTI]

We present a construction of a Banach manifold on the set of faithful normal states of a von Neumann algebra, where the underlying Banach space is a quantum analogue of an Orlicz space. On the manifold, we introduce the exponential and mixture connections as dual pair of affine connections.

Anna Jencova

2005-11-21T23:59:59.000Z

65

Geometric solitons of Hamiltonian flows on manifolds  

SciTech Connect (OSTI)

It is well-known that the LIE (Locally Induction Equation) admit soliton-type solutions and same soliton solutions arise from different and apparently irrelevant physical models. By comparing the solitons of LIE and Killing magnetic geodesics, we observe that these solitons are essentially decided by two families of isometries of the domain and the target space, respectively. With this insight, we propose the new concept of geometric solitons of Hamiltonian flows on manifolds, such as geometric Schrödinger flows and KdV flows for maps. Moreover, we give several examples of geometric solitons of the Schrödinger flow and geometric KdV flow, including magnetic curves as geometric Schrödinger solitons and explicit geometric KdV solitons on surfaces of revolution.

Song, Chong, E-mail: songchong@xmu.edu.cn [School of Mathematical Sciences, Xiamen University, Xiamen 361005 (China)] [School of Mathematical Sciences, Xiamen University, Xiamen 361005 (China); Sun, Xiaowei, E-mail: sunxw@cufe.edu.cn [School of Applied Mathematics, Central University of Finance and Economics, Beijing 100081 (China)] [School of Applied Mathematics, Central University of Finance and Economics, Beijing 100081 (China); Wang, Youde, E-mail: wyd@math.ac.cn [Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing 100190 (China)] [Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing 100190 (China)

2013-12-15T23:59:59.000Z

66

Relativistic fluid mechanics, Kahler manifolds and supersymmetry  

E-Print Network [OSTI]

We propose an alternative for the Clebsch decomposition of currents in fluid mechanics, in terms of complex potentials taking values in a Kahler manifold. We reformulate classical relativistic fluid mechanics in terms of these complex potentials and rederive the existence of an infinite set of conserved currents. We perform a canonical analysis to find the explicit form of the algebra of conserved charges. The Kahler-space formulation of the theory has a natural supersymmetric extension in 4-D space-time. It contains a conserved current, but also a number of additional fields complicating the interpretation. Nevertheless, we show that an infinite set of conserved currents emerges in the vacuum sector of the additional fields. This sector can therefore be identified with a regime of supersymmetric fluid mechanics. Explicit expressions for the current and the density are obtained.

T. S. Nyawelo; J. W. van Holten; S. Groot Nibbelink

2003-09-11T23:59:59.000Z

67

Smith theory and irreducible holomorphic symplectic manifolds  

E-Print Network [OSTI]

We study the cohomological properties of the fixed locus $X^G$ of an automorphism group $G$ of prime order $p$ acting on a variety $X$ whose integral cohomology is torsion-free. We obtain an precise relation between the mod $p$ cohomology of $X^G$ and natural invariants for the action of $G$ on the integral cohomology of $X$. We apply these results to irreducible holomorphic symplectic manifolds of deformation type of the Hilbert scheme of two points on a K3 surface: the main result of this paper is a formula relating the dimension of the mod $p$ cohomology of $X^G$ with the rank and the discriminant of the invariant lattice in the second cohomology space with integer coefficients of $X$.

Boissiere, Samuel; Sarti, Alessandra

2012-01-01T23:59:59.000Z

68

A study of the effects of casing perforations on the production rates of wells  

E-Print Network [OSTI]

resistance of 100~000 ohms. Using Darcy's Law for radial flow and the relationships shown in Figure 2 a resistance function can be obtained. where Rf is the fluid resistance. From the above it can be seen that R ~ 100, 000 ~ well bore resistance Rf Q ln..., Analogy Between Electrical and Pluid Syntone. . . . . 14 2A Diagran of Electrolytic Tash , 2B Diagrsn of Cased Role 2C Radial Distribution of Perforations ~ ~ 15 16 2D Vertical Distribution of Perforations . . . ~ The Effect of Well Sore Resistance...

Sanderlin, James Lewis

1958-01-01T23:59:59.000Z

69

Center Manifold Analysis of Delayed Lienard Equation and Its Applications  

E-Print Network [OSTI]

state. It has both practical and theoretical importance in determining the criticality of the Hopf bifurcation. For such purpose, center manifold analysis on the bifurcation line is required. This thesis uses operator differential equation formulation...

Zhao, Siming

2010-01-14T23:59:59.000Z

70

GEOMETRY OF KAHLER MANIFOLDS AND THE HODGE LAPLACIAN ON MINIMAL  

E-Print Network [OSTI]

of a spin manifold M to a spin submanifold is a Hermitian bun- dle given by the tensorial product the intrinsic spin bun- dle of the hypersurface and the induced Dirac operator is the intrinsic classical Dirac

Boyer, Edmond

71

SPLITTING MANIFOLD APPROXIMATE FIBRATIONS J. L. BRYANT AND P. KIRBY  

E-Print Network [OSTI]

SPLITTING MANIFOLD APPROXIMATE FIBRATIONS J. L. BRYANT AND P. KIRBY Abstract. Suppose M, embeddings. Partially supported by NSF grant DMS-9626624. 1 #12; 2 J. L. BRYANT AND P. KIRBY 2. Definitions

Aluffi, Paolo

72

HARMONIC MAPPINGS BETWEEN RIEMANNIAN MANIFOLDS Anand Arvind Joshi  

E-Print Network [OSTI]

HARMONIC MAPPINGS BETWEEN RIEMANNIAN MANIFOLDS by Anand Arvind Joshi A Thesis Presented ii Abstract iv 1 Harmonic Mappings 1 1.1 Space of Maps Variation Formula . . . . . . . . . . . . . . . . . . . . . . . . 11 1.4 Harmonic Maps

Leahy, Richard M.

73

Computation of Slow Invariant Manifolds for Hydrogen-Air Systems  

E-Print Network [OSTI]

· Summary #12;Introduction Motivation and background · Detailed kinetics are essential for accurate modeling systems · ILDM, CSP, and ICE-PIC are approximations of the reaction slow invariant manifold. · MEPT

74

Fixed points, stable manifolds, weather regimes, and their predictability  

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

In a simple, one-layer atmospheric model, we study the links between low-frequency variability and the model’s fixed points in phase space. The model dynamics is characterized by the coexistence of multiple “weather regimes.” To investigate the transitions from one regime to another, we focus on the identification of stable manifolds associated with fixed points. We show that these manifolds act as separatrices between regimes. We track each manifold by making use of two local predictability measures arising from the meteorological applications of nonlinear dynamics, namely, “bred vectors” and singular vectors. These results are then verified in the framework of ensemble forecasts issued from “clouds” (ensembles) of initial states. The divergence of the trajectories allows us to establish the connections between zones of low predictability, the geometry of the stable manifolds, and transitions between regimes.

Deremble, Bruno; D'Andrea, Fabio; Ghil, Michael [Univ. of California, Los Angeles, CA (United Staes). Atmospheric and Oceanic Sciences and Institute of Geophysics and Planetary Physics

2009-10-27T23:59:59.000Z

75

Well-productivity improvement by use of rapid overpressured perforation extension: Case history  

SciTech Connect (OSTI)

This paper describes an overbalance perforating and surging technique used as a pretreatment to hydraulic fracturing of the Romeo interval at Prudhoe Bay. Operation conditions, surface and bottomhole pressure (BHP) measurements, and modeling results are presented and discussed. Well productivity and the amount of proppant placed are compared with results in offset wells where the technique was not used.

Coueet, B.; Petitjean, L.M. [Schlumberger-Doll Research, Ridgefield, CT (United States); Abel, J.C.; Schmidt, J.H.; Ferguson, K.R.

1996-02-01T23:59:59.000Z

76

On the effect of perforated plates on the acoustics of annular combustors  

E-Print Network [OSTI]

On the effect of perforated plates on the acoustics of annular combustors E. Gullaud1 CERFACS], acoustic Helmholtz solvers can prove to be sufficient to compute the thermoacoustic modes of a combustor accuracy of these computations, the whole complex geometry of the combustor, including the combustion

Paris-Sud XI, Université de

77

On the effect of perforated plates on the acoustics of annular combustors  

E-Print Network [OSTI]

On the effect of perforated plates on the acoustics of annular combustors E. Gullaud1 CERFACS [9, 10], the thermoacoustic modes of a combustor can be computed more 3 #12;efficiently by using to account for the complex geometry of the combustor, including the combustion chamber, casing, swirlers

Nicoud, Franck

78

Eulerian simulation of the perforation of aluminum plates by nondeforming projectiles  

SciTech Connect (OSTI)

A new algorithm for the treatment of sliding interfaces between solids with or without friction in an Eulerian wavecode is described. The algorithm has been implemented in the two-dimensional version of the CTH code. The code was used to simulate penetration and perforation of aluminum plates by rigid, conical-nosed tungsten projectiles. Comparison with experimental data is provided.

Silling, S.A.

1992-03-01T23:59:59.000Z

79

On the ultraviolet behaviour of quantum fields over noncommutative manifolds  

E-Print Network [OSTI]

By exploiting the relation between Fredholm modules and the Segal-Shale-Stinespring version of canonical quantization, and taking as starting point the first-quantized fields described by Connes' axioms for noncommutative spin geometries, a Hamiltonian framework for fermion quantum fields over noncommutative manifolds is introduced. We analyze the ultraviolet behaviour of second-quantized fields over noncommutative 3-tori, and discuss what behaviour should be expected on other noncommutative spin manifolds.

Varilly, J C; Varilly, Joseph C.; Gracia-Bondia, Jose M.

1999-01-01T23:59:59.000Z

80

Renormalization, unstable manifolds, and the fractal structure of mode locking  

SciTech Connect (OSTI)

The apparent universality of the fractal dimension of the set of quasiperiodic windings at the onset of chaos in a wide class of circle maps is described by construction of a universal one-parameter family of maps which lies along the unstable manifold of the renormalization group. The manifold generates a universal ''devil's staircase'' whose dimension agrees with direct numerical calculations. Applications to experiments are discussed.

Cvitanovic, P.; Jensen, M.H.; Kadanoff, L.P.; Procaccia, I.

1985-07-22T23:59:59.000Z

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


81

Instantons on the exceptional holonomy manifolds of Bryant and Salamon  

E-Print Network [OSTI]

We give a construction of $G_2$ and $Spin(7)$ instantons on exceptional holonomy manifolds constructed by Bryant and Salamon, by using an ansatz of spherical symmetry coming from the manifolds being the total spaces of rank-4 vector bundles. In the $G_2$ case, we show that, in the asymptotically conical model, the connections are asymptotic to Hermitian Yang-Mills connections on the nearly K\\"ahler $S^3\\times S^3$.

Andrew Clarke

2014-04-15T23:59:59.000Z

82

Photoelastic investigations of stress concentration in perforated cylindrical shells with internal pressure  

SciTech Connect (OSTI)

Cylindrical shells with regular perforation are widely used in power generating equipment and in particular in collectors 1 of the circuit of steam generators of power generating installations with water-water reactors (WWPR) The state of stress of collectors is determined by a broad spectrum of technological and operational loads, it is therefore difficult to analyze it theoretically. The aim of the present work is the experimental investigation of stresses in the cylindrical shells of collectors subjected to internal pressure, the generalization and systematization of empirical data in the form of engineering formulas and nomographs. The investigations were carried out with photoelastic three-dimensional models with the use of {open_quotes}freezing{close_quotes}. The basic characteristics of the state of stress of perforated shells (in particular those used in calculations of the strength and life of collectors) are the values of the stress intensity factor K and of the stress intensification factor {gamma}{sub {bar {sigma}}}{sub me} of the mean integral stress level in the neck between neighboring holes. The presented data make it possible to establish quantitatively the regularities of change of K and {gamma}{sub {bar {sigma}}}{sub me} in dependence on the geometry of the perforated shells. These data were systematized according to a special program of multifactor regression analysis. It follows from the presented formulas and nomographs in particular that in the ranges of the geometry of the perforated shells K may change from 2.5 to 4.0, and {gamma}{sub {bar {sigma}}}{sub me} from 1.1 to 2.3. Therefore varied geometric parameters have a substantial effect on the load intensity of perforated shells, and that once again confirms how topical it is to obtain new experimental data, to generalize and systematize them.

Dranchenko, B.N.; Portnov, B.B.; Seleznev, A.V.; Danilova, T.N.; Komarova, S.N.; Ponomareva, V.K.

1994-06-01T23:59:59.000Z

83

An elastic-perfectly plastic flow model for finite element analysis of perforated materials  

SciTech Connect (OSTI)

This paper describes the formulation of an elastic-perfectly plastic flow theory applicable to equivalent solid [EQS] modeling of perforated materials. An equilateral triangular array of circular penetrations is considered. The usual assumptions regarding geometry and loading conditions applicable to the development of elastic constants for EQS modeling of perforated plates are considered to apply here. An elastic-perfectly plastic [EPP] EQS model is developed for a collapse surface that includes fourth-order stress terms. The fourth order yield function has been shown to be appropriate for plates with a triangular array of circular holes. A complete flow model is formulated using the consistent tangent modulus approach based on the fourth order yield function.

Jones, D.P.; Gordon, J.L.; Hutula, D.N.; Banas, D.; Newman, J.B.

1999-02-01T23:59:59.000Z

84

Distributed mean curvature on a discrete manifold for Regge calculus  

E-Print Network [OSTI]

The integrated mean curvature of a simplicial manifold is well understood in both Regge Calculus and Discrete Differential Geometry. However, a well motivated pointwise definition of curvature requires a careful choice of volume over which to uniformly distribute the local integrated curvature. We show that hybrid cells formed using both the simplicial lattice and its circumcentric dual emerge as a remarkably natural structure for the distribution of this local integrated curvature. These hybrid cells form a complete tessellation of the simplicial manifold, contain a geometric orthonormal basis, and are also shown to give a pointwise mean curvature with a natural interpretation as a fractional rate of change of the normal vector.

Rory Conboye; Warner A. Miller; Shannon Ray

2015-02-26T23:59:59.000Z

85

Intrinsic Mean Shift for Clustering on Stiefel and Grassmann Manifolds Hasan Ertan C etingul Rene Vidal  

E-Print Network [OSTI]

Intrinsic Mean Shift for Clustering on Stiefel and Grassmann Manifolds Hasan Ertan C¸ eting¨ul Ren

86

A MANIFOLD THAT DOES NOT CONTAIN A COMPACT CORE Gerard A. Venema  

E-Print Network [OSTI]

A MANIFOLD THAT DOES NOT CONTAIN A COMPACT CORE Gerard A. Venema June 2, 1997 A b s t r ac t . A core of a (noncompact) manifold is a submanifold with the property that the inclusion to contain a compact core even though the manifold has the homotopy type of a finite complex. 1. Introduction

Venema, Gerard

87

The Complexity of Geodesic Voronoi Diagrams on Triangulated 2-Manifold Surfaces  

E-Print Network [OSTI]

The Complexity of Geodesic Voronoi Diagrams on Triangulated 2-Manifold Surfaces Yong-Jin Liu1 , Kai 2-manifold surface, based on the geodesic metric. Given a triangulated 2-manifold T of n faces T, the Voronoi diagram of a set of point sites based on the geodesic metric (called below geodesic

Tang, Kai

88

White noise analysis on manifolds and the energy representation of a gauge group  

E-Print Network [OSTI]

The energy representation of a gauge group on a Riemannian manifold has been discussed by several authors. Y. Shimada has shown the irreducibility for compact Riemannian manifold, using white noise analysis. In this paper we extend its technique to noncompact Riemannian manifolds which have differential operators satisfying some conditions.

Takahiro Hasebe

2011-01-15T23:59:59.000Z

89

TOPOLOGICAL PROPERTIES OF ESCHENBURG SPACES AND 3-SASAKIAN MANIFOLDS  

E-Print Network [OSTI]

, AND WOLFGANG ZILLER Riemannian manifolds with positive sectional curvature have been a frequent topic of global by (a, b, c) = (2279, 1603, 384) and (2528, 939, 799) with r = 5143925. The two 3-Sasakian metrics sectional curvature, although the 3-Sasakian metric never has positive curvature. They are special cases

Ziller, Wolfgang

90

Generic measures for geodesic flows on nonpositively curved manifolds  

E-Print Network [OSTI]

Generic measures for geodesic flows on nonpositively curved manifolds Yves Coud`ene, Barbara the generic invariant probability measures for the geodesic flow on connected complete nonpositively curved subset of the set of all probability measures invariant by the geodesic flow. The proof of K. Sigmund

Paris-Sud XI, Université de

91

INTEGRABILITY OF GEODESIC FLOWS AND ISOSPECTRALITY OF RIEMANNIAN MANIFOLDS  

E-Print Network [OSTI]

INTEGRABILITY OF GEODESIC FLOWS AND ISOSPECTRALITY OF RIEMANNIAN MANIFOLDS DOROTHEE SCHUETH are isospectral for the Laplace operator on functions and such that M has completely integrable geodesic flow of the submanifolds of the unit tangent bundle given by two maximal continuous families of closed geodesics

Schüth, Dorothee

92

An implicit trust-region method on Riemannian manifolds§  

E-Print Network [OSTI]

Jun 6, 2007 ... described in terms of optimizing a smooth function on a manifold (e.g., the eigen- value problem .... Use CG recurrences to update residual and search direction. 21: Set rj+1 = rj .... only once and never re-enter it. However, for ...

2007-06-06T23:59:59.000Z

93

Manifold Homotopy via the Flow Complex Bardia Sadri  

E-Print Network [OSTI]

modeling though much of the mathematical foundations behind the flow complex were well-explored priorManifold Homotopy via the Flow Complex Bardia Sadri Abstract It is known that the critical points versus those of deep critical points, in a filtration of the flow complex based on the distance

Toronto, University of

94

Regularized Algebraic Nets for General Covariant QFT on Differentiable Manifolds  

E-Print Network [OSTI]

Quantum general relativity may be considered as generally covariant QFT on differentiable manifolds, without any a priori metric structure. The kinematically covariance group acts by general diffeomorphisms on the manifold and by automorphisms on the isotonic net of *-algebras encoding the QFT, while the algebra of observables is covariant under the dynamical subgroup of the general diffeomorphism group. Here, I focus on an algebraic implementation of the dynamical subgroup of dilations. Introducing an small and large scale cutoffs algebraically, their usual a priori conflict with general covariance is avoided. Thereby, a commutant duality between the minimal and maximal algebra is proposed. This allows to extract the modular structure, which is again related to the dilations.

M. Rainer

1997-05-30T23:59:59.000Z

95

Interacting quintessence dark energy models in Lyra manifold  

E-Print Network [OSTI]

In this paper, we consider two-component dark energy models in Lyra manifold. The first component is assumed as a quintessence field while the second model may be a viscous polytropic gas, a viscous Van der Waals gas or a viscous modified Chaplygin gas. We also consider the possibility of interaction between components. By using numerical analysis, we study some cosmological parameters of the models and compare them with observational data.

M. Khurshudyan; J. Sadeghi; R. Myrzakulov; A. Pasqua; H. Farahani

2014-08-18T23:59:59.000Z

96

Well productivity improvement using extreme overbalanced perforating and surging-case history  

SciTech Connect (OSTI)

This paper describes overbalanced perforating and surging operations as a pretreatment to hydraulic fracturing for the Romeo interval at Prudhoe Bay. Operation conditions are presented and discussed, as well as surface and bottomhole pressure measurements. Well productivity and the amount of proppant placed are compared to results in offset wells where the technique was not applied. The paper shows how the use of the technique allows placement of small, highly conductive fractures in intervals that were not previously considered fracturing candidates due to the close proximity to the gas/oil contact (GOC). The paper also shows pressure transient analysis affirming the technique as a stand-alone stimulation. It is shown that the use of extreme overbalanced perforating and surging treatments prior to hydraulic fracturing produces a substantial increase both in the success rate and the efficiency of the hydraulic fracturing operation and in the production rate of the wells that are pretreated. Finally, a comparison between pressure data and a new radial fracture propagation model shows a good match. The model demonstrates that high-energy treatment can significantly increase the extension and the height of the fracture; this was corroborated by downhole pressure measurements recorded during one overbalance treatment and by well logs.

Petitjean, L.; Coueet, B.; Abel, J.C. [and others

1995-12-31T23:59:59.000Z

97

First laboratory perforating tests in coal show lower-than-expected penetration  

SciTech Connect (OSTI)

Worldwide Coal Bed Methane (CBM) resources are huge, estimated at 3,000 to 9,000 Tcf. The production rate from CBM reservoirs is low, perhaps 50-100 mcf/day. Various completion methods are being evaluated and new technologies are being developed with the aim of increasing production rates. Considering this interest and activity level, little attention has been paid to the CBM completion fundamentals. Perforating is a critical part of this process, especially considering the PRB development migration from single-coal, open-hole completions into multi-zone, cased-hole completions. This paper describes the first known laboratory-testing program to investigate shaped charge penetration in coal targets. We describe mechanical properties of the coals tested, and penetration results for different shaped charges (of different designs), shot at various stress conditions. CT scan and cutaway imaging of the perforation tunnels are also discussed. Tests were conducted under dry and saturated conditions. The preliminary experiments reported here indicate that shaped charge penetration in coal is significantly less than expected, considering the target's density and strength. The authors provide insight into what may be the reasons for these unexpected results and recommend a path forward for shaped charge testing, designs, predictive tools, and how to optimize CBM completions.

Snider, P.M.; Walton, I.C.; Skinner, T.K.; Atwood, D.C.; Grove, B.M.; Graham, C.

2008-06-15T23:59:59.000Z

98

Monopoles on the Bryant-Salamon $G_2$ Manifolds  

E-Print Network [OSTI]

$G_2$-Monopoles are solutions to gauge theoretical equations on noncompact $7$-manifolds of $G_2$ holonomy. We shall study this equation on the $3$ Bryant-Salamon manifolds. We construct examples of $G_2$-monopoles on two of these manifolds, namely the total space of the bundle of anti-self-dual two forms over the $\\mathbb{S}^4$ and $\\mathbb{CP}^2$. These are the first nontrivial examples of $G_2$-monopoles. Associated with each monopole there is a parameter $m \\in \\mathbb{R}^+$, known as the mass of the monopole. We prove that under a symmetry assumption, for each given $m \\in \\mathbb{R}^+$ there is a unique monopole with mass $m$. We also find explicit irreducible $G_2$-instantons on $\\Lambda^2_-(\\mathbb{S}^4)$ and on $\\Lambda^2_-(\\mathbb{CP}^2)$. The third Bryant-Salamon $G_2$-metric lives on the spinor bundle over the $3$-sphere. In this case we produce a vanishing theorem for monopoles.

Goncalo Oliveira

2014-11-06T23:59:59.000Z

99

Interference Fracturing: Non-Uniform Distributions of Perforation Clusters that Promote Simultaneous Growth of Multiple Hydraulic Fractures  

E-Print Network [OSTI]

Simultaneous Growth of Multiple Hydraulic Fractures A.P. Peirce, University of British Columbia and A.P. Bunger in horizontal well stimulation is the generation of hydraulic fractures (HFs) from all perforation clusters shadowing" that refers to suppression of some hydraulic fractures by the compressive stresses exerted

Peirce, Anthony

100

IEEE TRANSACTIONS ON NUCLEAR SCIENCE, VOL. 53, NO. 3, JUNE 2006 1659 Efficiencies of Coated and Perforated Semiconductor  

E-Print Network [OSTI]

be realized for doubled or "sand- wiched" devices. Index Terms--Perforated detector, semiconductor neutron de neutron detection by a variety of re- search groups [1]­[14], all of which have generally used B, Li, Li 66506 USA (e-mail: mc- gregor@ksu.edu). Digital Object Identifier 10.1109/TNS.2006.872639 enter

Shultis, J. Kenneth

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


101

Influence of gas flow rate on liquid distribution in trickle-beds using perforated plates as liquid distributors  

E-Print Network [OSTI]

" the distribution imposed at the top of the reactor. Finally, a comparison between the two measuring techniques-beds reactors, the second will directly affect its performances. Indeed, a bad liquid distribution will not only distribution when fluids distribution on top of the reactor is ensured by a perforated plate. In opposition

Paris-Sud XI, Université de

102

Thermo-mechanical behaviour of TRIP 1000 steel sheets subjected to low velocity perforation by conical projectiles at different temperatures  

E-Print Network [OSTI]

on the transformation kinetics of TRIP and dual phase steels has been analyzed by many researchers, for example Al are responsible for the deformation pro cess taking place in TRIP steels during and after the phase transforThermo-mechanical behaviour of TRIP 1000 steel sheets subjected to low velocity perforation

Paris-Sud XI, Université de

103

Milnor-Wood inequalities for manifolds locally isometric to a product of hyperbolic planes  

E-Print Network [OSTI]

This note describes sharp Milnor--Wood inequalities for the Euler number of flat oriented vector bundles over closed Riemannian manifolds locally isometric to products of hyperbolic planes. One consequence is that such manifolds do not admit an affine structure, confirming Chern--Sullivan's conjecture in this case. The manifolds under consideration are of particular interest, since in contrary to many other locally symmetric spaces they do admit flat vector bundle of the corresponding dimension. When the manifold is irreducible and of higher rank, it is shown that flat oriented vector bundles are determined completely by the sign of the Euler number.

Bucher, Michelle

2008-01-01T23:59:59.000Z

104

An upper bound for a Hilbert polynomial on quaternionic K"ahler manifolds  

E-Print Network [OSTI]

manifold (M, g) * *with holon- omy contained in Sp(1) . Sp(n). Associated with M is the twistor space Z

Weingart, Gregor

105

Induced matter: Curved N-manifolds encapsulated in Riemann-flat N+1 dimensional space  

E-Print Network [OSTI]

Liko and Wesson have recently introduced a new 5-dimensional induced matter solution of the Einstein equations, a negative curvature Robertson-Walker space embedded in a Riemann flat 5-dimensional manifold. We show that this solution is a special case of a more general theorem prescribing the structure of certain N+1-dimensional Riemann flat spaces which are all solutions of the Einstein equations. These solutions encapsulate N-dimensional curved manifolds. Such spaces are said to "induce matter" in the sub-manifolds by virtue of their geometric structure alone. We prove that the N-manifold can be any maximally symmetric space.

Harry I. Ringermacher; Lawrence R. Mead

2005-11-02T23:59:59.000Z

106

The Bryant-Salamon G_2 manifolds and hypersurface geometry  

E-Print Network [OSTI]

We show that two of the Bryant-Salamon G_2-manifolds have a simple topology ; homeomorphic to the complement of some submanifolds of the 7-dimensional sphere. In this connection, we show there exists a complete Ricci-flat (non-flat) metric on the complement of an m-dimensional sphere in an n-dimensional sphere for some n-1>m. We also give many examples of special Lagrangian submanifolds of the cotangent bundle of the sphere with the Stenzel metric. Hypersurface geometry is essential in the argument.

Reiko Miyaoka

2006-06-02T23:59:59.000Z

107

Quantum error correcting codes and 4-dimensional arithmetic hyperbolic manifolds  

SciTech Connect (OSTI)

Using 4-dimensional arithmetic hyperbolic manifolds, we construct some new homological quantum error correcting codes. They are low density parity check codes with linear rate and distance n{sup ?}. Their rate is evaluated via Euler characteristic arguments and their distance using Z{sub 2}-systolic geometry. This construction answers a question of Zémor [“On Cayley graphs, surface codes, and the limits of homological coding for quantum error correction,” in Proceedings of Second International Workshop on Coding and Cryptology (IWCC), Lecture Notes in Computer Science Vol. 5557 (2009), pp. 259–273], who asked whether homological codes with such parameters could exist at all.

Guth, Larry, E-mail: lguth@math.mit.edu [Department of Mathematics, MIT, Cambridge, Massachusetts 02139 (United States); Lubotzky, Alexander, E-mail: alex.lubotzky@mail.huji.ac.il [Institute of Mathematics, Hebrew University, Jerusalem 91904 (Israel)

2014-08-15T23:59:59.000Z

108

Gas Manifold for Olefin Polymerization and a Convenient Reactor Design for the Parallel  

E-Print Network [OSTI]

construction of a gas manifold line in which olefin polymerizations can be performed using heavy- walled glass in order to shut off the supply line to the manifold and purge the regulator after replacing a cylinder. Columns of molecular sieves and Q-5 oxygen scavenger are placed in line to remove any residual water

109

Convergence and Rate of Convergence of A Manifold-Based Dimension Reduction Algorithm  

E-Print Network [OSTI]

of a local manifold learning algorithm: LTSA [13]. The main technical tool is the perturbation analysis some asymptotic properties of a local manifold learning algorithm: LTSA [13], as well as a demonstration of some of its limitations. The key idea in the analysis is to treat the solutions computed

Zha, Hongyuan

110

DESINGULARIZING HOMOLOGY MANIFOLDS J. BRYANT, S. FERRY, W. MIO, AND S. WEINBERGER  

E-Print Network [OSTI]

DESINGULARIZING HOMOLOGY MANIFOLDS J. BRYANT, S. FERRY, W. MIO, AND S. WEINBERGER Abstract. We Date: August 24, 2005. Bryant and Mio were partially supported by NSF grants DMS-0071693 and DMS supported by NSF grant DMS-9803633. 1 #12;2 J. BRYANT, S. FERRY, W. MIO, AND S. WEINBERGER manifolds

Mio, Washington

111

Hamilton-Jacobi Equations on a Manifold and Applications to Grid Generation or Re nement.  

E-Print Network [OSTI]

Hamilton-Jacobi Equations on a Manifold and Applications to Grid Generation or Re#28;nement. Ph Hamilton-Jacobi equations on a manifold, typically on the graph of some previously computed function z method. Keywords: Hamilton-Jacobi equations, viscosity solutions, level set method, adaptative meshes

112

Analytical invariant manifolds near unstable points and the structure of chaos  

E-Print Network [OSTI]

It is known that the asymptotic invariant manifolds around an unstable periodic orbit in conservative systems can be represented by convergent series (Cherry 1926, Moser 1956, 1958, Giorgilli 2001). The unstable and stable manifolds intersect at an infinity of homoclinic points, generating a complicated homoclinic tangle. In the case of simple mappings it was found (Da Silva Ritter et al. 1987) that the domain of convergence of the formal series extends to infinity along the invariant manifolds. This allows in practice to study the homoclinic tangle using only series. However in the case of Hamiltonian systems, or mappings with a finite analyticity domain,the convergence of the series along the asymptotic manifolds is also finite. Here, we provide numerical indications that the convergence does not reach any homoclinic points. We discuss in detail the convergence problem in various cases and we find the degree of approximation of the analytical invariant manifolds to the real (numerical) manifolds as i) the order of truncation of the series increases, and ii) we use higher numerical precision in computing the coefficients of the series. Then we introduce a new method of series composition, by using action-angle variables, that allows the calculation of the asymptotic manifolds up to an a arbitrarily large extent. This is the first case of an analytic development that allows the computation of the invariant manifolds and their intersections in a Hamiltonian system for an extent long enough to allow the study of homoclinic chaos by analytical means.

C. Efthymiopoulos; G. Contopoulos; M. Katsanikas

2014-04-30T23:59:59.000Z

113

THE FBI TRANSFORM ON COMPACT C 1 MANIFOLDS JARED WUNSCH AND MACIEJ ZWORSKI  

E-Print Network [OSTI]

THE FBI TRANSFORM ON COMPACT C 1 MANIFOLDS JARED WUNSCH AND MACIEJ ZWORSKI 1. Introduction In this paper we discuss the Fourier-Bros-Iagolnitzer (FBI) transform on smooth, boundaryless manifolds-compactness of the cotangent bundle. By reviewing the basic constructions of the FBI transform theory, we hope to make

Zworski, Maciej

114

Model building with intersecting D6-branes on smooth Calabi-Yau manifolds  

E-Print Network [OSTI]

We study intersecting D6-branes in Calabi-Yau manifolds that are smooth hypersurfaces in weighted projective spaces. We develop the techniques for calculating intersection numbers between special Lagrangian sub-manifolds defined as fixed loci of anti-holomorphic involutions. We present global Pati-Salam and MSSM-like models that are supersymmetric up to a decoupled hidden sector.

Eran Palti

2009-02-20T23:59:59.000Z

115

Resolvent estimates and local decay of waves on conic manifolds  

E-Print Network [OSTI]

We consider manifolds with conic singularites that are isometric to $\\mathbb{R}^{n}$ outside a compact set. Under natural geometric assumptions on the cone points, we prove the existence of a logarithmic resonance-free region for the cut-off resolvent. The estimate also applies to the exterior domains of non-trapping polygons via a doubling process. The proof of the resolvent estimate relies on the propagation of singularities theorems of Melrose and the second author to establish a "very weak" Huygens' principle, which may be of independent interest. As applications of the estimate, we obtain a exponential local energy decay and a resonance wave expansion in odd dimensions, as well as a lossless local smoothing estimate for the Schr{\\"o}dinger equation.

Dean Baskin; Jared Wunsch

2012-10-01T23:59:59.000Z

116

Milnor-Wood inequalities for manifolds which are locally a product of surfaces  

E-Print Network [OSTI]

The classical Milnor-Wood inequalities for the Euler number of flat oriented vector bundles over surfaces are generalized for higher dimensional closed manifolds that admit a local structure of products of planes. These include products of surfaces as well as closed Hilbert-Blumenthal modular varieties. As a consequence, the Chern Conjecture is confirmed for such manifolds. For manifolds admitting a rigid locally symmetric structure, a complete classification is given for the flat vector bundles with nonzero Euler number. Some of the main results were announced in C.R. Acad. Sci. Paris, Ser. I 346 (2008) 661-666.

Bucher, Michelle

2009-01-01T23:59:59.000Z

117

DEPTH OF PLEATED SURFACES IN TOROIDAL CUSPS OF HYPERBOLIC 3-MANIFOLDS  

E-Print Network [OSTI]

DEPTH OF PLEATED SURFACES IN TOROIDAL CUSPS OF HYPERBOLIC 3-MANIFOLDS Ying-Qing Wu1 Abstract. Let F 0203394 1 #12;2 YING-QING WU The following theorem gives an estimation of the depth of closed essential

Wu, Ying-Qing

118

Toroidal Dehn fillings on hyperbolic 3-manifolds Cameron McA. Gordon  

E-Print Network [OSTI]

Toroidal Dehn fillings on hyperbolic 3-manifolds Cameron McA. Gordon Ying-Qing Wu Author address 0305846. Ying-Qing Wu was partially supported by NSF grant DMS 0203394. vi #12;1. INTRODUCTION 1 1

Wu, Ying-Qing

119

Mechanical Systems on an almost Kähler model of a Finsler Manifold  

E-Print Network [OSTI]

In this study, we present a new analogue of Euler-Lagrange and Hamilton equations on an almost K\\"ahler model of a Finsler manifold. Also, we give some corollories about the related mechanical systems and equations.

Mehmet Tekkoyun; O?uzhan Çelik

2012-11-06T23:59:59.000Z

120

Charting a manifold Matthew Brand, MERL (draft revised Oct 2002 to appear NIPS'02)  

E-Print Network [OSTI]

Charting a manifold Matthew Brand, MERL (draft revised Oct 2002 to appear NIPS'02) Abstract We to untie knots, unroll and untwist sheets, and visualize/compress high-dimensional biomechanical and image

Roberts, Stephen

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


121

Calculation of Invariant Manifolds for Reacting Ashraf N. Al-Khateeb, Joseph M. Powers, Samuel Paolucci,  

E-Print Network [OSTI]

in detailed gas-phase chemical kinetics modeling, · detailed kinetics are essential for accurate modeling;Partial Review of Manifold Methods in Reactive Systems · The ILDM, CSP, and ICE-PIC are approximations

122

Manifold and method of batch measurement of Hg-196 concentration using a mass spectrometer  

DOE Patents [OSTI]

A sample manifold and method of its use has been developed so that milligram quantities of mercury can be analyzed mass spectroscopically to determine the .sup.196 Hg concentration to less than 0.02 atomic percent. Using natural mercury as a standard, accuracy of .+-.0.002 atomic percent can be obtained. The mass spectrometer preferably used is a commercially available GC/MS manufactured by Hewlett Packard. A novel sample manifold is contained within an oven allowing flow rate control of Hg into the MS. Another part of the manifold connects to an auxiliary pumping system which facilitates rapid clean up of residual Hg in the manifold. Sample cycle time is about 1 hour.

Grossman, Mark W. (Belmont, MA); Evans, Roger (N. Hampton, NH)

1991-01-01T23:59:59.000Z

123

Manifold and method of batch measurement of Hg-196 concentration using a mass spectrometer  

DOE Patents [OSTI]

A sample manifold and method of its use has been developed so that milligram quantities of mercury can be analyzed mass spectroscopically to determine the [sup 196]Hg concentration to less than 0.02 atomic percent. Using natural mercury as a standard, accuracy of [+-]0.002 atomic percent can be obtained. The mass spectrometer preferably used is a commercially available GC/MS manufactured by Hewlett Packard. A novel sample manifold is contained within an oven allowing flow rate control of Hg into the MS. Another part of the manifold connects to an auxiliary pumping system which facilitates rapid clean up of residual Hg in the manifold. Sample cycle time is about 1 hour. 8 figures.

Grossman, M.W.; Evans, R.

1991-11-26T23:59:59.000Z

124

"Stable Prime Decompositions of Four-Manifolds" Matthias Kreck, Wolfgang Luck  

E-Print Network [OSTI]

Mi with i = 1(Mi). Stably means that one allows additional connected sums with some copies of S2 Ã? S2 is oriented diffeomorphic to a connected sum n i=1Mi of oriented manifolds Mi which are prime, i.e. if Mi is diffeomorphic to Mi Mi then Mi or Mi is oriented diffeomorphic to S3 . The manifolds Mi are unique up to order

Teichner, Peter

125

Quantifying The Complexity Of Geodesic Paths On Curved Statistical Manifolds Through Information Geometric Entropies and Jacobi Fields  

E-Print Network [OSTI]

We characterize the complexity of geodesic paths on a curved statistical manifold M_{s} through the asymptotic computation of the information geometric complexity V_{M_{s}} and the Jacobi vector field intensity J_{M_{s}}. The manifold M_{s} is a 2l-dimensional Gaussian model reproduced by an appropriate embedding in a larger 4l-dimensional Gaussian manifold and endowed with a Fisher-Rao information metric g_{{\\mu}{\

Carlo Cafaro; Stefano Mancini

2010-11-25T23:59:59.000Z

126

Natural star-products on symplectic manifolds and related quantum mechanical operators  

SciTech Connect (OSTI)

In this paper is considered a problem of defining natural star-products on symplectic manifolds, admissible for quantization of classical Hamiltonian systems. First, a construction of a star-product on a cotangent bundle to an Euclidean configuration space is given with the use of a sequence of pair-wise commuting vector fields. The connection with a covariant representation of such a star-product is also presented. Then, an extension of the construction to symplectic manifolds over flat and non-flat pseudo-Riemannian configuration spaces is discussed. Finally, a coordinate free construction of related quantum mechanical operators from Hilbert space over respective configuration space is presented. -- Highlights: •Invariant representations of natural star-products on symplectic manifolds are considered. •Star-products induced by flat and non-flat connections are investigated. •Operator representations in Hilbert space of considered star-algebras are constructed.

B?aszak, Maciej, E-mail: blaszakm@amu.edu.pl; Doma?ski, Ziemowit, E-mail: ziemowit@amu.edu.pl

2014-05-15T23:59:59.000Z

127

The abstract boundary---a new approach to singularities of manifolds  

E-Print Network [OSTI]

A new scheme is proposed for dealing with the problem of singularities in General Relativity. The proposal is, however, much more general than this. It can be used to deal with manifolds of any dimension which are endowed with nothing more than an affine connection, and requires a family \\calc\\ of curves satisfying a {\\em bounded parameter property} to be specified at the outset. All affinely parametrised geodesics are usually included in this family, but different choices of family \\calc\\ will in general lead to different singularity structures. Our key notion is the {\\em abstract boundary\\/} or {\\em $a$-boundary\\/} of a manifold, which is defined for any manifold \\calm\\ and is independent of both the affine connection and the chosen family \\calc\\ of curves. The $a$-boundary is made up of equivalence classes of boundary points of \\calm\\ in all possible open embeddings. It is shown that for a pseudo-Riemannian manifold $(\\calm,g)$ with a specified family \\calc\\ of curves, the abstract boundary points can then be split up into four main categories---regular, points at infinity, unapproachable points and singularities. Precise definitions are also provided for the notions of a {\\em removable singularity} and a {\\em directional singularity}. The pseudo-Riemannian manifold will be said to be singularity-free if its abstract boundary contains no singularities. The scheme passes a number of tests required of any theory of singularities. For instance, it is shown that all compact manifolds are singularity-free, irrespective of the metric and chosen family \\calc.

Susan M. Scott; Peter Szekeres

1994-05-26T23:59:59.000Z

128

Dissociations of the Medial and Lateral Perforant Path Projections Into Dorsal DG, CA3, and CA1 for Spatial and Nonspatial (Visual Object)  

E-Print Network [OSTI]

-amino-5-phosphonovaleric acid (APV) infusions, whereas lateral perforant path plasticity can be attenuated by naloxone infusions. The present experiment was designed to evaluate the role of each entorhinal) changes in the overall configuration of environmental stimuli. Dorsal dentate gyrus infusions of either

Wagner, Anthony

129

Manifold modeling for brain population analysis Samuel Gerber *, Tolga Tasdizen, P. Thomas Fletcher, Sarang Joshi, Ross Whitaker, and the Alzheimers  

E-Print Network [OSTI]

of the population. We evaluate the proposed method on the OASIS and ADNI brain databases of head MR images in twoManifold modeling for brain population analysis Samuel Gerber *, Tolga Tasdizen, P. Thomas Fletcher Brain MRI Manifold learning Computer aided clinical diagnosis a b s t r a c t This paper describes

Utah, University of

130

Topology of Homology Manifolds J. Bryant1, S. Ferry1, W. Mio1, and S. Weinberger1; 2  

E-Print Network [OSTI]

Topology of Homology Manifolds J. Bryant1, S. Ferry1, W. Mio1, and S. Weinberger1; 2 Florida State and Bryant-Lacher 7 , when the dimension of the singular set of the homology manifold is in the stable range

Mio, Washington

131

On rank 2 vector bundles on Fano manifolds Roberto Mu~noz, Gianluca Occhetta, and Luis E. Sola Conde  

E-Print Network [OSTI]

On rank 2 vector bundles on Fano manifolds Roberto Mu~noz, Gianluca Occhetta, and Luis E. Sol´a~NOZ, GIANLUCA OCCHETTA, AND LUIS E. SOL´A CONDE setting of rank two vector bundles on Fano manifolds of Picard

Occhetta, Gianluca

132

Natural Conjugate Gradient on Complex Flag Manifolds for Complex Independent Subspace  

E-Print Network [OSTI]

conjugate gradient method yields better convergence compared to the natural gradient geodesic search method is the natural gradient geodesic search method (NGS), and the other is the natural conjugate gradient method (NCG the natural gradient or the Newton's method on complex manifolds, however, the behavior of the conjugate

Plumbley, Mark

133

Convergence and Rate of Convergence of A Manifold-Based Dimension Reduction Algorithm  

E-Print Network [OSTI]

of a particular manifold- based learning algorithm: LTSA [12]. The main technical tool is the perturbation analysis on the linear invariant subspace that corresponds to the solution of LTSA. We derive the upper bound for errors under the worst case for LTSA; it naturally leads to a convergence result. We

Huo, Xiaoming

134

Type Master Thesis Title TV based image processing for manifold-valued data  

E-Print Network [OSTI]

Type Master Thesis Title TV based image processing for manifold-valued data Advisor PROF. PHILIPP of a numerical array of real values (as e.g. in grey-value images) but rather of arrays (matrices) whose elements images, covariance matrices arising in radar observatory data, etc... The challenge is to extend

Grohs, Philipp

135

"Stable Prime Decompositions of Four-Manifolds" Matthias Kreck, Wolfgang Luck  

E-Print Network [OSTI]

Mi with i = 1(Mi). Stably means that one allows additional connected sums with some copies of S2 Ã? S2 de- composition. Namely, M is oriented diffeomorphic to a connected sum n i=1Mi of oriented manifolds Mi which are prime, i.e. if Mi is diffeomorphic to Mi Mi , then Mi or Mi is oriented diffeomorphic

Lück, Wolfgang

136

Side branch absorber for exhaust manifold of two-stroke internal combustion engine  

DOE Patents [OSTI]

A method of improving scavenging operation of a two-stroke internal combustion engine. The exhaust pressure of the engine is analyzed to determine if there is a pulsation frequency. Acoustic modeling is used to design an absorber. An appropriately designed side branch absorber may be attached to the exhaust manifold.

Harris, Ralph E. (San Antonio, TX); Broerman, III, Eugene L. (San Antonio, TX); Bourn, Gary D. (Laramie, WY)

2011-01-11T23:59:59.000Z

137

SHORT GEODESIC SEGMENTS BETWEEN TWO POINTS ON A CLOSED RIEMANNIAN MANIFOLD  

E-Print Network [OSTI]

SHORT GEODESIC SEGMENTS BETWEEN TWO POINTS ON A CLOSED RIEMANNIAN MANIFOLD Alexander Nabutovsky there exist at least k distinct geodesics of length at most 20k!d between these points for every positive that for any pair of points on a closed Riemannian man- ifold Mn there exist infinitely many geodesics

Nabutovsky, Alexander

138

IEEE TRANSACTIONS ON POWER SYSTEMS, CHEN, DENG AND HUO. 1 Electricity Price Curve Modeling by Manifold  

E-Print Network [OSTI]

markets. Index Terms-- Electricity spot price, locational marginal price, electricity forward curveIEEE TRANSACTIONS ON POWER SYSTEMS, CHEN, DENG AND HUO. 1 Electricity Price Curve Modeling and prediction of electricity price curves by applying the manifold learning methodology. Cluster analysis based

139

DEHN SURGERIES ON 2-BRIDGE LINKS WHICH YIELD REDUCIBLE 3-MANIFOLDS  

E-Print Network [OSTI]

) 1 = -w + u + 1 and 2 = -w + u - 1. (b) 1 = -w + u and 2 = -w + u. (2) w = 1, u = -2 and 1 = -1 and 2 -2 is a reducible 3-manifold if and only if it is one of the followings or its mirror image. (1) (a

Hachimori, Masahiro

140

Machine Learning for Seismic Signal Processing: Seismic Phase Classification on a Manifold  

E-Print Network [OSTI]

Machine Learning for Seismic Signal Processing: Seismic Phase Classification on a Manifold Juan--In this research, we consider the supervised learning problem of seismic phase classification. In seismology, knowledge of the seismic activity arrival time and phase leads to epicenter localization and surface

Meyer, Francois

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


141

COMPRESSIVE VIDEO CLASSIFICATION IN A LOW-DIMENSIONAL MANIFOLD WITH LEARNED DISTANCE METRIC  

E-Print Network [OSTI]

COMPRESSIVE VIDEO CLASSIFICATION IN A LOW-DIMENSIONAL MANIFOLD WITH LEARNED DISTANCE METRIC George Tzagkarakis1 , Grigorios Tsagkatakis2 , Jean-Luc Starck1 and Panagiotis Tsakalides2 1 Commissariat `a l'´Energie of video classification based on a set of com- pressed features, without the need of accessing the original

Tsakalides, Panagiotis

142

A landscape of non-supersymmetric AdS vacua on coset manifolds  

E-Print Network [OSTI]

We construct new families of non-supersymmetric sourceless type IIA AdS4 vacua on those coset manifolds that also admit supersymmetric solutions. We investigate the spectrum of left-invariant modes and find that most, but not all, of the vacua are stable under these fluctuations. Generically, there are also no massless moduli.

Paul Koerber; Simon Kors

2010-05-10T23:59:59.000Z

143

Locating an atmospheric contamination source using slow manifolds Wenbo Tang,1  

E-Print Network [OSTI]

the origin of atmospheric particle pollution from dispersed particle positions, provided that diffusion efLocating an atmospheric contamination source using slow manifolds Wenbo Tang,1 George Haller,2,a-dimensional atmospheric wind field in an urban street canyon. © 2009 American Institute of Physics. DOI: 10

Tang, Wenbo

144

ESTIMATION OF EXHAUST MANIFOLD PRESSURE IN TURBOCHARGED GASOLINE ENGINES WITH VARIABLE VALVE TIMING  

E-Print Network [OSTI]

ESTIMATION OF EXHAUST MANIFOLD PRESSURE IN TURBOCHARGED GASOLINE ENGINES WITH VARIABLE VALVE TIMING in turbocharged gasoline engines with variable valve timing requires knowledge of exhaust mani- fold pressure, Pe control systems for gasoline engines rely heavily on feedforward air-fuel ratio (A/F) control to meet

Grizzle, Jessy W.

145

Water Pentamer: Characterization of the Torsional-Puckering Manifold by Terahertz VRT Spectroscopy  

E-Print Network [OSTI]

Water Pentamer: Characterization of the Torsional-Puckering Manifold by Terahertz VRT Spectroscopy Heather A. Harker, Mark R. Viant, Frank N. Keutsch,§ Ernest A. Michael,| Ryan P. McLaughlin, and Richard J observation of this perturbation in the perdeuterated water pentamer, as well as the first observation

Cohen, Ronald C.

146

Oscillator or Segal-Shale-Weil representation Geometry: Associating the oscillator to symplectic manifolds  

E-Print Network [OSTI]

C -algebras Oscillator or Segal-Shale-Weil representation Geometry: Associating the oscillator or Segal-Shale-Weil representation Geometry: Associating the oscillator to symplectic manifolds Global and (x) = 0 implies x = 0 2 S. Krýsl #12;C -algebras Oscillator or Segal-Shale-Weil representation

Krysl, Svatopluk

147

Invariant Manifolds for the Station Keeping of Solar Sails Ariadna Farres, AJ  

E-Print Network [OSTI]

Invariant Manifolds for the Station Keeping of Solar Sails Ariadna Farr´es, AJ Universitat de 2 / 45 inria-00585612,version1-14Apr2011 #12;Background What is a Solar Sail ? Solar Sails are a new concept of spacecraft propulsion that takes ad- vantage of the Solar radiation pressure to propel

Boyer, Edmond

148

Non-streaming high-efficiency perforated semiconductor neutron detectors, methods of making same and measuring wand and detector modules utilizing same  

DOE Patents [OSTI]

Non-streaming high-efficiency perforated semiconductor neutron detectors, method of making same and measuring wands and detector modules utilizing same are disclosed. The detectors have improved mechanical structure, flattened angular detector responses, and reduced leakage current. A plurality of such detectors can be assembled into imaging arrays, and can be used for neutron radiography, remote neutron sensing, cold neutron imaging, SNM monitoring, and various other applications.

McGregor, Douglas S. (Riley, KS); Shultis, John K. (Manhattan, KS); Rice, Blake B. (Manhattan, KS); McNeil, Walter J. (Winnfield, KS); Solomon, Clell J. (Wichita, KS); Patterson, Eric L. (Manhattan, KS); Bellinger, Steven L. (Manhattan, KS)

2010-12-21T23:59:59.000Z

149

Detecting invariant manifolds, attractors, and generalized KAM tori in aperiodically forced mechanical systems  

E-Print Network [OSTI]

We show how the recently developed theory of geodesic transport barriers for fluid flows can be used to uncover key invariant manifolds in externally forced, one-degree-of-freedom mechanical systems. Specifically, invariant sets in such systems turn out to be shadowed by least-stretching geodesics of the Cauchy-Green strain tensor computed from the flow map of the forced mechanical system. This approach enables the finite-time visualization of generalized stable and unstable manifolds, attractors and generalized KAM curves under arbitrary forcing, when Poincare maps are not available. We illustrate these results by detailed visualizations of the key finite-time invariant sets of conservatively and dissipatively forced Duffing oscillators.

Alireza Hadjighasem; Mohammad Farazmand; George Haller

2013-02-07T23:59:59.000Z

150

Bose-Einstein Condensation on a Manifold with Nonnegative Ricci Curvature  

E-Print Network [OSTI]

The Bose-Einstein condensation for an ideal Bose gas and for a dilute weakly interacting Bose gas in a manifold with nonnegative Ricci curvature is investigated using the heat kernel and eigenvalue estimates of the Laplace operator. The main focus is on the nonrelativistic gas. However, special relativistic ideal gas is also discussed. The thermodynamic limit of the heat kernel and eigenvalue estimates is taken and the results are used to derive bounds for the depletion coefficient. In the case of a weakly interacting gas Bogoliubov approximation is employed. The ground state is analyzed using heat kernel methods and finite size effects on the ground state energy are proposed. The justification of the c-number substitution on a manifold is given.

Levent Akant; Emine Ertugrul; Ferzan Tapramaz; O. Teoman Turgut

2014-03-28T23:59:59.000Z

151

Infrared divergence of a scalar quantum field model on a pseudo Riemannian manifold  

E-Print Network [OSTI]

A scalar quantum field model defined on a pseudo Riemann manifold is considered. The model is unitarily transformed the one with a variable mass. By means of a Feynman-Kac-type formula, it is shown that when the variable mass is short range, the Hamiltonian has no ground state. Moreover the infrared divergence of the expectation values of the number of bosons in the ground state is discussed.

C. Gérard; F. Hiroshima; A. Panati; A. Suzuki

2011-03-18T23:59:59.000Z

152

Homogeneous Einstein Metrics on SU(n) Manifolds, Hoop Conjecture for Black Rings, and Ergoregions in Magnetised Black Hole Spacetimes  

E-Print Network [OSTI]

HOMOGENEOUS EINSTEIN METRICS ON SU(n) MANIFOLDS, HOOP CONJECTURE FOR BLACK RINGS, AND ERGOREGIONS IN MAGNETISED BLACK HOLE SPACETIMES A Dissertation by ABID HASAN MUJTABA Submitted to the O ce of Graduate Studies of Texas A&M University... Subject: Physics Copyright 2013 Abid Hasan Mujtaba ABSTRACT This Dissertation covers three aspects of General Relativity: inequivalent Einstein metrics on Lie Group Manifolds, proving the Hoop Conjecture for Black Rings, and investigating ergoregions...

Mujtaba, Abid Hasan

2013-01-09T23:59:59.000Z

153

An experimental investigation of sand transport in inclined eccentric annuli  

E-Print Network [OSTI]

'fill-up' period. Okranjniso studied the effects of fluid rheology in 1981. He pointed out the importance of yield value on cuttings transport, and showed that the ratio of yield point over plastic viscosity (YP/PV) has significant effect on particle... beds are substantially reduced by small increases in mud weight. 3) Drillpipe rotation reduces annular cuttings buildup under certain conditions. 4) Under normal drilling practices, as much as half the annular area can be filled with a cuttings bed...

McClellan, John Christopher

2012-06-07T23:59:59.000Z

154

Fuel cell system including a unit for electrical isolation of a fuel cell stack from a manifold assembly and method therefor  

DOE Patents [OSTI]

A fuel cell system with improved electrical isolation having a fuel cell stack with a positive potential end and a negative potential, a manifold for use in coupling gases to and from a face of the fuel cell stack, an electrical isolating assembly for electrically isolating the manifold from the stack, and a unit for adjusting an electrical potential of the manifold such as to impede the flow of electrolyte from the stack across the isolating assembly.

Kelley; Dana A. (New Milford, CT), Farooque; Mohammad (Danbury, CT), Davis; Keith (Southbury, CT)

2007-10-02T23:59:59.000Z

155

Test results of a ceramic-based carbon monoxide sensor in the automotive exhaust manifold  

SciTech Connect (OSTI)

A prototype CO sensor based on the anatase phase of TiO{sub 2} was fabricated and tested in a Ford V6 engine. Fuel combustion was programmed to be near stoichiometric conditions, and emissions were monitored with an FT-IR analytical instrument. The sensor, positioned near the oxygen sensor in the exhaust manifold, was successfully tested for 50 cycles of revving and idling, and was observed to respond quickly and reproducibly. The sensor response was correlated to the CO concentration at specific engine temperatures and was found to vary systematically with increasing concentrations. The results are promising and the sensor shows potentials to monitor the efficiency of the catalytic converter.

Azad, A.M.; Younkman, L.B.; Akbar, S.A. [Ohio State Univ., Columbus, OH (United States)

1996-12-31T23:59:59.000Z

156

Smith theory, L2 cohomology, isometries of locally symmetric manifolds and moduli spaces of curves  

E-Print Network [OSTI]

We investigate periodic diffeomorphisms of non-compact aspherical manifolds (and orbifolds) and describe a class of spaces that have no homotopically trivial periodic diffeomorphisms. Prominent examples are moduli spaces of curves and aspherical locally symmetric spaces with non-vanishing Euler characteristic. In the irreducible locally symmetric case, we show that no complete metric has more symmetry than the locally symmetric metric. In the moduli space case, we build on work of Farb and Weinberger and prove an analogue of Royden's theorem for complete finite volume metrics.

Avramidi, Grigori

2011-01-01T23:59:59.000Z

157

Comments on the Unification of Electromagnetism and Gravitation through "Generalized Einstein manifolds"  

E-Print Network [OSTI]

H. Akbar-Zadeh has recently proposed (J Geom Phys 17 (1995) 342) a new geometric formulation of Einstein-Maxwell system with source in terms of what are called "Generalized Einstein manifolds". We show that, contrary to the claim, Maxwell equations have not been derived in this formulation and that, the assumed equations can be identified only as source-free Maxwell equations in the proposed geometric set up. A genuine derivation of source-free Maxwell equations is presented within the same framework. We draw a conclusion that the proposed unification scheme can pertain only to source-free situations.

M. Panahi; M. Mehrafarin

1998-01-19T23:59:59.000Z

158

SO(10) Grand Unification in M theory on a G2 manifold  

E-Print Network [OSTI]

We consider Grand Unified Theories based on $SO(10)$ which originate from string/$M$ theory on $G_2$ manifolds or Calabi-Yau spaces with discrete symmetries. In this framework we are naturally led to a novel solution of the doublet-triplet splitting problem previously considered by Dvali which involves an extra vector-like Standard Model family and light, but weakly coupled colour triplets. These additional states are predicted to be accessible at the LHC and also induce R-parity violation. Gauge coupling unification occurs with a larger GUT coupling.

Acharya, Bobby S; Romao, Miguel Crispim; King, Stephen F; Pongkitivanichkul, Chakrit

2015-01-01T23:59:59.000Z

159

Optical manifold  

DOE Patents [OSTI]

Optical systems are described that have at least one source of a beam of blue light with divergence under 15.degree.. A phosphor emits yellow light when excited by the blue light. A collimator is disposed with the phosphor and forms a yellow beam with divergence under 15.degree.. A dichroic filter is positioned to transmit the beam of blue light to the phosphor and to reflect the beam of yellow light to an exit aperture. In different embodiments, the beams of blue and yellow light are incident upon said filter with central angles of 15.degree., 22.degree., and 45.degree.. The filter may reflect all of one polarization and part of the other polarization, and a polarization rotating retroreflector may then be provided to return the unreflected light to the filter.

Falicoff, Waqidi; Chaves, Julio C.; Minano, Juan Carlos; Benitez, Pablo; Dross, Oliver; Parkyn, Jr., William A.

2010-02-23T23:59:59.000Z

160

Perforation patterned electrical interconnects  

DOE Patents [OSTI]

This disclosure describes systems and methods for increasing the usable surface area of electrical contacts within a device, such as a thin film solid state device, through the implementation of electrically conductive interconnects. Embodiments described herein include the use of a plurality of electrically conductive interconnects that penetrate through a top contact layer, through one or more multiple layers, and into a bottom contact layer. The plurality of conductive interconnects may form horizontal and vertical cross-sectional patterns. The use of lasers to form the plurality of electrically conductive interconnects from reflowed layer material further aids in the manufacturing process of a device.

Frey, Jonathan

2014-01-28T23:59:59.000Z

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


161

Rovibrational dynamics of the strontium molecule in the A1u+, c3u, and a3u+ manifold from state-of-the-art ab initio calculations  

E-Print Network [OSTI]

Rovibrational dynamics of the strontium molecule in the A1u+, c3u, and a3u+ manifold from state OF CHEMICAL PHYSICS 136, 194306 (2012) Rovibrational dynamics of the strontium molecule in the A 1 + u , c3 u for the electronic states in the A 1 + u , c3 u, and a 3 + u manifold of the strontium dimer, the spin

Koch, Christiane

162

Quantitative characterization of the water trimer torsional manifold by terahertz laser spectroscopy and theoretical analysis. II. ,,H2O...3  

E-Print Network [OSTI]

Quantitative characterization of the water trimer torsional manifold by terahertz laserLaughlin,c) Christy J. Keoshian, Ernest Michael, Jeff D. Cruzan,d) and Richard J. Saykallye) Department of Chemistry, University of California, Berkeley, California 94720 Ad van der Avoirdf) Institute of Theoretical Chemistry

Cohen, Ronald C.

163

Resume of definitions of "tangent vector" Let M be a manifold, m M, and X = (X1  

E-Print Network [OSTI]

Resum´e of definitions of "tangent vector" Let M be a manifold, m M, and X = (X1 , · · ·Xd ) : U Joel Feldman. 2008. All rights reserved. September 30, 2008 Resum´e of definitions of "tangent vector rights reserved. September 30, 2008 Resum´e of definitions of "tangent vector" 2 #12;

Feldman, Joel

164

Manifold, bus support and coupling arrangement for solid oxide fuel cells  

DOE Patents [OSTI]

Individual, tubular solid oxide fuel cells (SOFCs) are assembled into bundles called a module within a housing, with a plurality of modules arranged end-to-end in a linear, stacked configuration called a string. A common set of piping comprised of a suitable high temperature resistant material (1) provides fuel and air to each module housing, (2) serves as electrically conducting buses, and (3) provides structural support for a string of SOFC modules. Ceramic collars are used to connect fuel and air inlet piping to each of the electrodes in an SOFC module and provide (1) electrical insulation for the current carrying bus bars and gas manifolds, (2) damping for the fuel and air inlet piping, and (3) proper spacing between the fuel and air inlet piping to prevent contact between these tubes and possible damage to the SOFC. 11 figs.

Parry, G.W.

1988-04-21T23:59:59.000Z

165

Symmetries of the Energy-Momentum Tensor of Spherically Symmetric Lorentzian Manifolds  

E-Print Network [OSTI]

Matter collineations of spherically Symmetric Lorentzian Manifolds are considered. These are investigated when the energy-momentum tensor is non-degenerate and also when it is degenerate. We have classified spacetimes admitting higher symmetries and spacetimes admitting SO(3) as the maximal isometry group. For the non-degenerate case, we obtain either {\\it four}, {\\it six}, {\\it seven} or {\\it ten} independent matter collineations in which {\\it four} are isometries and the rest are proper. The results of the previous paper [1] are recovered as a special case. It is worth noting that we have also obtained two cases where the energy-momentum tensor is degenerate but the group of matter collineations is finite-dimensional, i.e. {\\it four} or {\\it ten}.

M. Sharif

2003-07-29T23:59:59.000Z

166

Solid oxide fuel cell having monolithic cross flow core and manifolding  

DOE Patents [OSTI]

This invention discloses a monolithic core construction having the flow passageways for the fuel and for the oxidant gases extended transverse to one another, whereby full face core manifolding can be achieved for these gases and their reaction products. The core construction provides that only anode material surround each fuel passageway and only cathode material surround each oxidant passageway, each anode and each cathode further sandwiching at spaced opposing sides electrolyte and interconnect materials to define electrolyte and interconnect walls. Webs of the cathode and anode material hold the electrolyte and interconnect walls spaced apart to define the flow passages. The composite anode and cathode wall structures are further alternately stacked on one another (with the separating electrolyte or interconnect material typically being a single common layer) whereby the fuel passageway and the oxidant passageways are disposed transverse to one another.

Poeppel, Roger B. (Glen Ellyn, IL); Dusek, Joseph T. (Downers Grove, IL)

1984-01-01T23:59:59.000Z

167

Exact solution for the degenerate ground-state manifold of a strongly interacting one-dimensional Bose-Fermi mixture  

SciTech Connect (OSTI)

We present the exact solution for the many-body wavefunction of a one-dimensional mixture of bosons and spin-polarized fermions with equal masses and infinitely strong repulsive interactions under external confinement. Such a model displays a large degeneracy of the ground state. Using a generalized Bose-Fermi mapping, we find the solution for the whole set of ground-state wave functions of the degenerate manifold and we characterize them according to group-symmetry considerations. We find that the density profile and the momentum distribution depends on the symmetry of the solution. By combining the wave functions of the degenerate manifold with suitable symmetry and guided by the strong-coupling form of the Bethe-Ansatz solution for the homogeneous system, we propose an analytic expression for the many-body wave function of the inhomogeneous system which well describes the ground state at finite, large, and equal interaction strengths, as validated by numerical simulations.

Fang, Bess [Department of Physics, Block S12, Faculty of Science, National University of Singapore, 2 Science Drive 3, Singapore 117542 (Singapore); Centre for Quantum Technologies, National University of Singapore, 3 Science Drive 2, Singapore 117543 (Singapore); Vignolo, Patrizia; Gattobigio, Mario [Universite de Nice-Sophia Antipolis, Institut Non Lineaire de Nice, CNRS, 1361 route des Lucioles, F-06560 Valbonne (France); Miniatura, Christian [Department of Physics, Block S12, Faculty of Science, National University of Singapore, 2 Science Drive 3, Singapore 117542 (Singapore); Centre for Quantum Technologies, National University of Singapore, 3 Science Drive 2, Singapore 117543 (Singapore); Universite de Nice-Sophia Antipolis, Institut Non Lineaire de Nice, CNRS, 1361 route des Lucioles, F-06560 Valbonne (France); Minguzzi, Anna [Universite Grenoble 1, CNRS, LPMMC, UMR5493, Maison des Magisteres, F-38042 Grenoble (France)

2011-08-15T23:59:59.000Z

168

Invariance properties of boundary sets of open embeddings of manifolds and their application to the abstract boundary  

E-Print Network [OSTI]

The {\\em abstract boundary\\/} (or {\\em {\\em a\\/}-boundary\\/}) of Scott and Szekeres \\cite{Scott94} constitutes a ``boundary'' to any $n$-dimensional, paracompact, connected, Hausdorff, $C^\\infty$-manifold (without a boundary in the usual sense). In general relativity one deals with a {\\em space-% time\\/} $(\\cM,g)$ (a 4-dimensional manifold $\\cM$ with a Lorentzian metric $g$), together with a chosen preferred class of curves in $\\cM$. In this case the {\\em a\\/}-boundary points may represent ``singularities'' or ``points at infinity''. Since the {\\em a\\/}-boundary itself, however, does not depend on the existence of further structure on the manifold such as a Lorentzian metric or connection, it is possible for it to be used in many contexts. In this paper we develop some purely topological properties of abstract boundary sets and abstract boundary points ({\\em a\\/}-boundary points). We prove, amongst other things, that compactness is invariant under boundary set equivalence, and introduce another invariant concept ({\\em isolation\\/}), which encapsulates the notion that a boundary set is ``separated'' from other boundary points of the same embedding. ....... [The abstract continues in paper proper - truncated to fit here.

Christopher J. Fama; Susan M. Scott

1994-06-21T23:59:59.000Z

169

Manifold, bus support and coupling arrangement for solid oxide fuel cells  

DOE Patents [OSTI]

Individual, tubular solid oxide fuel cells (SOFCs) are assembled into bundles called a module within a housing, with a plurality of modules arranged end-to-end in a linear, stacked configuration called a string. A common set of piping comprised of a suitable high temperture resistant material (1) provides fuel and air to each module housing, (2) serves as electrically conducting buses, and (3) provides structural support for a string of SOFC modules. The piping thus forms a manfold for directing fuel and air to each module in a string and makes electrical contact with the module's anode and cathode to conduct the DC power generated by the SOFC. The piping also provides structureal support for each individual module and maintains each string of modules as a structurally integral unit for ensuring high strength in a large 3-dimensional array of SOFC modules. Ceramic collars are used to connect fuel and air inlet piping to each of the electrodes in an SOFC module and provide (1) electrical insulation for the current carrying bus bars and gas manifolds, (2) damping for the fuel and air inlet piping, and (3) proper spacing between the fuel and air inlet piping to prevent contact between these tubes and possible damage to the SOFC.

Parry, Gareth W. (East Windsor, CT)

1989-01-01T23:59:59.000Z

170

Classifying spaces for homogeneous manifolds and their related Lie isometry deformations  

E-Print Network [OSTI]

Among plenty of applications, low-dimensional homogeneous spaces appear in cosmological models as both, classical factor spaces of multidimensional geometry and minisuperspaces in canonical quantization. Here a new tool to restrict their continuous deformations is presented: Classifying spaces for homogeneous manifolds and their related Lie isometry deformations. The adjoint representation of n-dimensional real Lie algebras induces a natural topology on their classifying space, which encodes the natural algebraic relationship between different Lie algebras therein. For n>1 this topology is not Hausdorffian. Even more it satisfies only the separation axiom T_0, but not T_1, i.e. there is a constant sequence which has a limit different from the members of the sequence. Such a limit is called a transition. Recently it was found that transitions are the natural generalization and transitive completion of the well-known In\\"on\\"u-Wigner contractions. For n<5 the relational classifying spaces are constructed explicitly. Calculating their characteristic scalar invariants via triad representations of the characteristic isometry, local homogeneous Riemannian 3-spaces are classified in their natural geometrical relations to each other. Their classifying space is a composition of pieces with different isometry types. Although it is Hausdorffian, different topological transitions to the same limit may induce locally non-Euclidean regions (e.g. at Bianchi tppes VII_0).

M. Rainer

1996-02-28T23:59:59.000Z

171

A two-point boundary value problem on a Lorentz manifold arising in A. Poltorak's concept of reference frame  

E-Print Network [OSTI]

In A. Poltorak's concept, the reference frame in General Relativity is a certain manifold equipped with a connection. The question under consideration here is whether it is possible to join two events in the space-time by a time-like geodesic if they are joined by a geodesic of the reference frame connection that has a time-like initial vector. This question is interpreted as whether an event belongs to the proper future of another event in the space-time in case it is so in the reference frame. For reference frames of two special types some geometric conditions are found under which the answer is positive.

Yu. E. Gliklikh; P. S. Zykov

2006-10-12T23:59:59.000Z

172

A manifold of possible physics-laws in a universe where the planck constant and speed of light parameters vary  

E-Print Network [OSTI]

I assume a universe whereby the speed of light and the planck constant are not constants but instead parameters that vary locally in time-and space. When describing motion, I am able to derive a modified path integral description at the quantum level, which offers a natural extension of quantum mechanics. At the microscopic level, this path integral intuitively describes a physics with many quantum realities thus leading to a novel concept of manifold of physics, which can be looked at as a novel action principle. This paradigm reflects the notion that the observed laws of physics on any given scale are determined by the underlying distribution of the fundamental parameters (i.e Quantum Mechanics is just one point on this manifold), thus leading to many possible physical-law based behaviors. By choosing a Gaussian distribution of the parameters, a quadratic action term appears in the path-integral, which in turns leads to a complex classical action (and by continuation a new description for inertia) at the classical level. In the accompanying manuscript the classical doublet equation of motion is applied to the Newtonian gravitation field, and a MOND-like, dark-energy-like, and pioneer-anomaly-like solutions are derived.

Roee Amit

2008-02-14T23:59:59.000Z

173

On the limiting behavior of the Brown-York quasi-local mass in asymptotically hyperbolic manifolds  

E-Print Network [OSTI]

We show that the limit at infinity of the vector-valued Brown-York-type quasi-local mass along any coordinate exhaustion of an asymptotically hyperbolic $3$-manifold satisfying the relevant energy condition on the scalar curvature has the conjectured causal character. Our proof uses spinors and relies on a Witten-type formula expressing the asymptotic limit of this quasi-local mass as a bulk integral which manifestly has the right sign under the above assumptions. In the spirit of recent work by Hijazi, Montiel and Raulot, we also provide another proof of this result which uses the theory of boundary value problems for Dirac operators on compact domains to show that a certain quasi-local mass, which converges to the Brown-York mass in the asymptotic limit, has the expected causal character under suitable geometric assumptions.

Ezequiel Barbosa; Levi Lopes de Lima; Frederico Girão

2014-07-02T23:59:59.000Z

174

Automated 3D Rigid Registration of Open 2D Manifolds Sune Darkner1,2, Martin Vester-Christensen1, Rasmus Larsen1, Claus Nielsen2, Rasmus R. Paulsen2  

E-Print Network [OSTI]

Automated 3D Rigid Registration of Open 2D Manifolds Sune Darkner1,2, Martin Vester-Christensen1 on the boundary of open surfaces so this is not the right choice for our data. Corresponding author: Sune Darkner

175

AHF: Array-Based Half-Facet Data Structure for Mixed-Dimensional and Non-Manifold Meshes  

SciTech Connect (OSTI)

We present an Array-based Half-Facet mesh data structure, or AHF, for efficient mesh query and modification operations. The AHF extends the compact array-based half-edge and half-face data structures (T.J. Alumbaugh and X. Jiao, Compact array-based mesh data structures, IMR, 2005) to support mixed-dimensional and non-manifold meshes. The design goals of our data structure include generality to support such meshes, efficiency of neighborhood queries and mesh modification, compactness of memory footprint, and facilitation of interoperability of mesh-based application codes. To accomplish these goals, our data structure uses sibling half-facets as a core abstraction, coupled with other explicit and implicit representations of entities. A unique feature of our data structure is a comprehensive implementation in MATLAB, which allows rapid prototyping, debugging, testing, and deployment of meshing algorithms and other mesh-based numerical methods. We have also developed C++ implementation built on top of MOAB (T.J. Tautges, R. Meyers, and K. Merkley, MOAB: A Mesh-Oriented Database, Sandia National Laboratories, 2004). We present some comparisons of the memory requirements and computational costs, and also demonstrate its effectiveness with a few sample applications.

Dyedov, Volodymyr; Ray, Navamita; Einstein, Daniel R.; Jiao, Xiangmin; Tautges, T.

2014-08-31T23:59:59.000Z

176

Development of a coal-fueled Internal Manifold Heat Exchanger (IMHEX reg sign ) molten carbonate fuel cell  

SciTech Connect (OSTI)

The design of a CGMCFC electric generation plant that will provide a cost of eletricity (COE) which is lower than that of current electric generation technologies and which is competitive with other long-range electric generating systems is presented. This effort is based upon the Internal Manifold Heat Exchanger (IMHEX) technology as developed by the Institute of Gas Technology (IGT). The project was executed by selecting economic and performance objectives for alternative plant arrangements while considering process constraints identified during IMHEX fuel cell development activities at ICT. The four major subsystems of a coal-based MCFC power plant are coal gasification, gas purification, fuel cell power generation and the bottoming cycle. The design and method of operation of each subsystem can be varied, and, depending upon design choices, can have major impact on both the design of other subsystems and the resulting cost of electricity. The challenge of this project was to select, from a range of design parameters, those operating conditions that result in a preferred plant design. Computer modelling was thus used to perform sensitivity analyses of as many system variables as program resources and schedules would permit. In any systems analysis, it is imperative that the evaluation methodology be verifiable and comparable. The TAG Class I develops comparable (if imprecise) data on performance and costs for the alternative cases being studied. It identifies, from a range of options, those which merit more exacting scrutiny to be undertaken at the second level, TAG class II analysis.

Not Available

1991-09-01T23:59:59.000Z

177

An experimental study of the relationship between cuttings deposition and wellbore inclination in eccentric annuli  

E-Print Network [OSTI]

of Inclination on Cuttings Deposition (0 rpm data) 6 90 % Confidence Band on Regression Mean (0 rpm, AV = 2 ft/sec) 7 90 % Confidence Band on Regression Mean (0 rpm, AV = 3 ft/sec) 8 90 % Confidence Band on Regression Mean (0 rptn, AV = 4 ft/sec) 9 Effect... of Flow Rate on Cuttings Deposition (0 rpm data) 10 Mobil Data Comparison (0 rpm, AV = 2 ft/sec) 11 Mobil Data Comparison (0 rpm, AV = 3 ft/sec) 12 Mobil Data Comparison (0 rpm, AV = 4 ft/sec) 13 Iyoho Data Comparison (0 rpm data) page 26 44 45...

Colbert, John Wesley

1993-01-01T23:59:59.000Z

178

Heat transfer to a fluid flowing in annuli of various cross-sectional geometries  

E-Print Network [OSTI]

. 2 149. 5 122. 9 148 1 95. 6 122 ~ 5 148. 5 3. 48 3. 48 3. 64 4. 25 4. 31 4. 40 4. 72 4. 88 4. 86 5. 17 5. 27 5. 04 1610 1600 1610 2140 2160 2170 2670 2670 2650 3 080 3090 3090 2510 2500 2490 3350 3360 3380 4180... Case (Round Tube) . 14 Results Obtained with the Square Tube Having a Concentric Inher Cylinder 15 Comparison of the Results of Eccentric Positions of the Inner Cylinder with the Concentric Case (Square Tube). 17 SYMBOLS, DIMENSIONS, AND TYPICAL...

Goldstone, Thomas Walter

1962-01-01T23:59:59.000Z

179

Rovibrational dynamics of the strontium molecule in the A^1\\Sigma_u^+, c^3\\Pi_u, and a^3\\Sigma_u^+ manifold from state-of-the-art ab initio calculations  

E-Print Network [OSTI]

State-of-the-art ab initio techniques have been applied to compute the potential energy curves for the electronic states in the A^1\\Sigma_u^+, c^3\\Pi_u, and a^3\\Sigma_u^+ manifold of the strontium dimer, the spin-orbit and nonadiabatic coupling matrix elements between the states in the manifold, and the electric transition dipole moment from the ground X^1\\Sigma_g^+ to the nonrelativistic and relativistic states in the A+c+a manifold. The potential energy curves and transition moments were obtained with the linear response (equation of motion) coupled cluster method limited to single, double, and linear triple excitations for the potentials and limited to single and double excitations for the transition moments. The spin-orbit and nonadiabatic coupling matrix elements were computed with the multireference configuration interaction method limited to single and double excitations. Our results for the nonrelativistic and relativistic (spin-orbit coupled) potentials deviate substantially from recent ab initio cal...

Skomorowski, Wojciech; Koch, Christiane P; Moszynski, Robert

2012-01-01T23:59:59.000Z

180

Development of a coal-fueled Internal Manifold Heat Exchanger (IMHEX{reg_sign}) molten carbonate fuel cell. Volumes 1--6, Final report  

SciTech Connect (OSTI)

The design of a CGMCFC electric generation plant that will provide a cost of eletricity (COE) which is lower than that of current electric generation technologies and which is competitive with other long-range electric generating systems is presented. This effort is based upon the Internal Manifold Heat Exchanger (IMHEX) technology as developed by the Institute of Gas Technology (IGT). The project was executed by selecting economic and performance objectives for alternative plant arrangements while considering process constraints identified during IMHEX fuel cell development activities at ICT. The four major subsystems of a coal-based MCFC power plant are coal gasification, gas purification, fuel cell power generation and the bottoming cycle. The design and method of operation of each subsystem can be varied, and, depending upon design choices, can have major impact on both the design of other subsystems and the resulting cost of electricity. The challenge of this project was to select, from a range of design parameters, those operating conditions that result in a preferred plant design. Computer modelling was thus used to perform sensitivity analyses of as many system variables as program resources and schedules would permit. In any systems analysis, it is imperative that the evaluation methodology be verifiable and comparable. The TAG Class I develops comparable (if imprecise) data on performance and costs for the alternative cases being studied. It identifies, from a range of options, those which merit more exacting scrutiny to be undertaken at the second level, TAG class II analysis.

Not Available

1991-09-01T23:59:59.000Z

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


181

Three lectures on global boundary conditions and the theory of self--adjoint extensions of the covariant Laplace--Beltrami and Dirac operators on Riemannian manifolds with boundary  

E-Print Network [OSTI]

In these three lectures we will discuss some fundamental aspects of the theory of self-adjoint extensions of the covariant Laplace-Beltrami and Dirac operators on compact Riemannian manifolds with smooth boundary emphasizing the relation with the theory of global boundary conditions. Self-adjoint extensions of symmetric operators, specially of the Laplace-Beltrami and Dirac operators, are fundamental in Quantum Physics as they determine either the energy of quantum systems and/or their unitary evolution. The well-known von Neumann's theory of self-adjoint extensions of symmetric operators is not always easily applicable to differential operators, while the description of extensions in terms of boundary conditions constitutes a more natural approach. Thus an effort is done in offering a description of self-adjoint extensions in terms of global boundary conditions showing how an important family of self-adjoint extensions for the Laplace-Beltrami and Dirac operators are easily describable in this way. Moreover boundary conditions play in most cases an significant physical role and give rise to important physical phenomena like the Casimir effect. The geometrical and topological structure of the space of global boundary conditions determining regular self-adjoint extensions for these fundamental differential operators is described. It is shown that there is a natural homology class dual of the Maslov class of the space. A new feature of the theory that is succinctly presented here is the relation between topology change on the system and the topology of the space of self-adjoint extensions of its Hamiltonian. Some examples will be commented and the one-dimensional case will be thoroughly discussed.

A. Ibort

2012-05-16T23:59:59.000Z

182

Image Processing with Manifold Models  

E-Print Network [OSTI]

to the following signals ensemble def. = {x f(x) = A(x) cos((x)) \\ ||A || Amax and || || max.} This model to = R+ Ã? R+ Ã? S1 . The projection of a patch p L2 ([-/2, /2]) on M can be carried over approximately] and defines the windowed Fourier 20 = {x f(x) = A(x) cos((x)) \\ ||A || Amax and || || max.} model of locally

Milanfar, Peyman

183

EQUALITY CONSTRAINTS, RIEMANNIAN MANIFOLDS AND ...  

E-Print Network [OSTI]

Jul 27, 2007 ... Direct search methods are typically designed to work in (a subset of) Rk. ..... where f,j is the partial derivative of f(y) in terms of xj, which is exactly (2.12). ...... enter into a small enough neighborhood Ux? ? N of x? at the point y ...

2007-07-27T23:59:59.000Z

184

The effect of perforation patterns upon well productivity  

E-Print Network [OSTI]

)ority of reservoirs it has been observed that the oil exists originally at or near its bubble point? llhen che pressure is reduoed at the well bore, oonsiderable quantities of gas are evolved The oreation of a free gas phase in the interstioes of the porous medium... the flow of oil into the well borea The use of a direot eleotrioal analogy beoomes someuhat more diffioult when dealing with sn oil not highly undersaturated, The oreation of a free gas phase oauses severe ohanges in the resistanoe to the flow of oil...

Neale, John William

1955-01-01T23:59:59.000Z

185

Body Force Model for the Aerodynamics of Inclined Perforated Surfaces  

E-Print Network [OSTI]

the mean velocity field inside and in the wake of the flaps while the numerical analysis comprised direct this finding. The resulting velocity field is in good agreement with the experiments and with the direct used in geophysical and civil engineering applications as wind shelters [8]. Common to all

Papamoschou, Dimitri

186

Homogenization in Perforated Domains. G.A.Chechkin  

E-Print Network [OSTI]

applications are space antennas, solar panels, civil engi- neering technologies, permeability of membranes much attention of mathematicians in connection with applications. The studying of behavior

Braides, Andrea

187

Author's personal copy Perforated diode neutron detector modules fabricated from  

E-Print Network [OSTI]

section of natural Gd to 27,600 barns. The (n,g) reactions yield numerous low energy conversion electrons Gd are mostly low energy conversion electrons, which can be easily confused with background gamma ray and Nuclear Engineering, 3002 Rathbone Hall, Kansas State University, Manhattan, KS 66506-2503, USA b

Shultis, J. Kenneth

188

The effects of plate thickness and perforation diameter on the supporting vapor velocity for a perforated plate fractionating column  

E-Print Network [OSTI]

by means of a Y/estphal balanoe ~ surface tensions by a Cence du 1'7ouy tensi- ometer (3), and liquid. viscositi by the use of modified Ostwald vis- cosity tubes. V SUPPORT AIIO RvCOV;=, RY VAPOR VZLDCITIRS Soon after the experimental colunn was put...

Cottle, John Ernest

1948-01-01T23:59:59.000Z

189

Dark energy and 3-manifold topology  

E-Print Network [OSTI]

We show that the differential-geometric description of matter by differential structures of spacetime leads to a unifying model of the three types of energy in the cosmos: matter, dark matter and dark energy. Using this model we are able to calculate the ratio of dark energy to the total energy of the cosmos.

Torsten Asselmeyer-Maluga; Helge Rose

2007-11-21T23:59:59.000Z

190

Semivectorial Bilevel Optimization on Riemannian Manifolds  

E-Print Network [OSTI]

Nov 22, 2014 ... ... Sciences, Dept. of Mathematics-Informatics, Splaiul Inde- pendentei 313, Bucharest 060042, Romania, e-mail : . 1 ...

2014-11-22T23:59:59.000Z

191

DIRECT SEARCH ALGORITHMS OVER RIEMANNIAN MANIFOLDS ...  

E-Print Network [OSTI]

we will deal with in this paper, examining the standard LTMADS in section 6. ..... we will need to scale the ?, ? and ? parameters during the current iteration.

2007-01-08T23:59:59.000Z

192

Manifold free multiple sheet superplastic forming  

DOE Patents [OSTI]

Fluid-forming compositions in a container attached to enclosed adjacent sheets are heated to relatively high temperatures to generate fluids (gases) that effect inflation of the sheets. Fluid rates to the enclosed space between the sheets can be regulated by the canal from the container. Inflated articles can be produced by a continuous, rather than batch-type, process.

Elmer, John W. (Danville, CA); Bridges, Robert L. (Knoxville, TN)

2001-01-01T23:59:59.000Z

193

Manifold free multiple sheet superplastic forming  

DOE Patents [OSTI]

Fluid-forming compositions in a container attached to enclosed adjacent sheets are heated to relatively high temperatures to generate fluids (gases) that effect inflation of the sheets. Fluid rates to the enclosed space between the sheets can be regulated by the canal from the container. Inflated articles can be produced by a continuous, rather than batch-type, process.

Elmer, John W.; Bridges, Robert L.

2004-01-13T23:59:59.000Z

194

DIRECT SEARCH METHODS OVER LIPSCHITZ MANIFOLDS 1 ...  

E-Print Network [OSTI]

for their postdoctoral program and, the Director's of Central Intelligence Postdoctoral. Fellowship program for providing prior research funding, out of which this ...

2007-02-27T23:59:59.000Z

195

Nonzero degree maps between three dimensional manifolds  

E-Print Network [OSTI]

201. [DSW11] Pierre Derbez, Hongbin Sun, and Shicheng Wang,no. 4, 733–742. [SWW10] Hongbin Sun, Shicheng Wang, and1, 131–155. [SWWZ12] Hongbin Sun, Shicheng Wang, Jianchun

Liu, Yi

2012-01-01T23:59:59.000Z

196

INVERSE PROBLEMS FOR EINSTEIN MANIFOLDS 1. Introduction ...  

E-Print Network [OSTI]

either the scattering operator at energy n, or the Dirichlet-to-Neumann map for the conformal .... boundary can have low regularity even though g has constant Ricci curvature. We mean that the .... one-parameter family of metrics hi(ti) on ? ¯

2008-01-17T23:59:59.000Z

197

Modular manifold for integrated fluidics and electronics  

DOE Patents [OSTI]

An airtight preconcentrator housing and/or a sensor housing for chemical testing, the housing(s) comprising internal dimensions such that a pre-manufactured preconcentrator and/or sensor can be disposed therein. The housings can also comprise electrical contacts disposed therein which align with and thus provide electrical connection to the preconcentrator and/or sensor. The preconcentrator and/or sensor can be easily and quickly replaced.

Adkins, Douglas Ray (Albuquerque, NM)

2010-03-30T23:59:59.000Z

198

New Statistical Bound for Inference Problems on Riemannian Manifolds  

E-Print Network [OSTI]

Barroso Instituto Sistemas e Rob´otica (ISR), Instituto Superior T´ecnico (IST) Lisbon, Portugal #12

199

$K$-theory on arbitrary manifolds and topological insulators  

E-Print Network [OSTI]

We discuss means to study topological properties of wavefunctions in a time reversal invariant crystalline system through $K$-groups. The well-known methods for calculating $K$-groups of $G$-bundles over spheres are extended using earlier results in order to deal with wavefunctions defined over toroidal Brillouin zones, following a method due to Nash. The recently discovered topological insulator is considered as an illustrative example.

Koushik Ray; Siddhartha Sen

2014-12-23T23:59:59.000Z

200

EIGENVALUES OF AN ALIGNMENT MATRIX IN NONLINEAR MANIFOLD LEARNING  

E-Print Network [OSTI]

. This forms a theoretical basis for the LTSA (Local Tangent Space Alignment) algorithm of [11] recently for this problem [1, 3, 5, 7, 11]. The alignment matrix was first introduced in the LTSA method [11] in which

Li, Chi-Kwong

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


201

Three-dimensional routed manifolds with externally inserted cables  

E-Print Network [OSTI]

The Automatic Test Equipment industry must maintain a tester accuracy of roughly one tenth the pulsewidth of the device under test (DUT). Funneling a vast number of electrical signals into a very tiny area to contact the ...

Breinlinger, Keith J. (Keith Joseph), 1974-

2003-01-01T23:59:59.000Z

202

From the Boltzmann equation to fluid mechanics on a manifold  

E-Print Network [OSTI]

We apply the Chapman-Enskog procedure to derive hydrodynamic equations on an arbitrary surface from the Boltzmann equation on the surface.

Peter J. Love; Donato Cianci

2012-08-27T23:59:59.000Z

203

Online Manifold Regularization: A New Learning Setting and Empirical Study  

E-Print Network [OSTI]

Consider a mobile robot continuously learning to recognize interesting objects (x) with limited feedback) i = t 4. Store xt, let t = t + 1 SPARSE APPROXIMATIONS The algorithm is impractical Space O(T): stores all previous examples Time O(T2 ): each new example compared to all previous ones In reality

Zhu, Xiaojin "Jerry"

204

Geometric Integration: Numerical Solution of Differential Equations on Manifolds  

E-Print Network [OSTI]

and the solar system. Conserved quantities of a Hamiltonian system, such as energy, linear and angular momentum that they encapsulate. The importance of geometry has been widely acknowledged in both pure and ap­ plied research

Burton, Geoffrey R.

205

Counter-rotating Kerr manifolds separated by a fluid shell  

E-Print Network [OSTI]

We describe a spheroidal fluid shell between two Kerr vacuum regions which have opposite rotation parameters. The shell has a stiff equation of state and a heat flow vector related to the rotational Killing current. The shell description is useful in exploring the significance of counter-rotation in Kerr metric matches.

J. P. Krisch; E. N. Glass

2009-08-13T23:59:59.000Z

206

Stochastic analysis on sub-Riemannian manifolds with transverse ...  

E-Print Network [OSTI]

May 1, 2014 ... The Laplace-Beltrami operator L is the generator of the Dirichlet form. E(f ) = ?. M ... on M with generator 1. 2. L. .... linear equation. dMt dt. = ?.

Fabrice Baudoin

2014-04-30T23:59:59.000Z

207

Magnetic Resonance Imaging (MRI) of PEM Dehydration and Gas Manifold  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: VegetationEquipment Surfaces and InterfacesAdministration -Lowell L.FallU . SChromatography

208

Using Code Perforation to Improve Performance, Reduce Energy Consumption, and Respond to Failures  

E-Print Network [OSTI]

Many modern computations (such as video and audio encoders, Monte Carlo simulations, and machine learning algorithms) are designed to trade off accuracy in return for increased performance. To date, such computations ...

Agarwal, Anant

2009-09-03T23:59:59.000Z

209

E-Print Network 3.0 - artery perforator sparing Sample Search...  

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

Methods to evaluate clinical interventions in cultured porcine coronary arteries 12;CIP... interventions in cultured porcine coronary arteries by Leonarda H. van den Heuvel....

210

Characteristics of countercurrent vapor-liquid flow at a perforated plate  

E-Print Network [OSTI]

of heat-sens1tive materials. Also, a column with low liqu1d holdup is more responsive to operating controls than 1s a column conta1n- 1ng a large inventory of liquid. It was found that for the plates having hole areas of 23 and 40 per cent... to the plate above by the impetus of the vapor Jetting through the liquid on the plate. In this case, the velocity of the vapor through the holes in the plate, (or slots, in the case of bubble-caps) would be the 38 controlling factor. This mechanism...

Sutherland, Samuel Shelton

2012-06-07T23:59:59.000Z

211

Laboratory investigations of low frequency sound attenuation over combustion flat perforated wall sheet  

E-Print Network [OSTI]

sheet Q. Qina , P. Rubinia , C. Jayatungab and V. Sandersonb a The University of Hull, The Acoustics Turbomachinery Ltd, PO Box 1, Waterside South, LN5 7FD Lincoln, UK q.qin@hull.ac.uk Proceedings of the Acoustics in turbine combustors for many years. The main purpose of the holes on the combustion chambers is to cool

Boyer, Edmond

212

A Study on the Analysis of the Formation of High Water Saturation zones around Well perforations.  

E-Print Network [OSTI]

??The water produced with oil as a result of water coning is a serious problem as it decreases well productivity and increases the cost of… (more)

Alrumah, Muhammad

2011-01-01T23:59:59.000Z

213

E-Print Network 3.0 - anterolateral thigh perforator Sample Search...  

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

Coupling ReaxFF with Temperature Accelerated Summary: events Concerted Atom Movement 12;TAD Illustration Thigh 12;Implementation into CMDF Coding Obstacles... Voter's...

214

Design and performance considerations for perforated semiconductor thermal-neutron detectors  

E-Print Network [OSTI]

. The ðn; g� reactions yield numerous low energy conversion electrons, with a general distribution ranging]. As a result, the reaction products from Gd are mostly low energy conversion electrons which can easily.K. Shultis, D.S. McGregor � S.M.A.R.T. Laboratory, Department of Mechanical and Nuclear Engineering, 3002

Shultis, J. Kenneth

215

E-Print Network 3.0 - abdominal wall perforators Sample Search...  

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

wall stress in abdominal aortic aneurysms... . Priaux (Eds) TU Delft, Delft The Netherland, 2006 THE INFLUENCE OF ASYMMETRIC INFLOW IN ... Source: Papaharilaou, Yannis -...

216

Head Loss Through Fibrous Debris Bed with Different Types of Perforated Strainers  

E-Print Network [OSTI]

Loss of Coolant Accident LWR Light Water Reactor MBLOCA Medium Break Loss of Coolant Accident MSDS Material Safety Data Sheet NEI Nuclear Energy Institute NIST National Institute of Standards and Technology NPP Nuclear Power Plants NPSH Net... than the randomly generated debris bed on the sump strainer of the NPP. The U.S. NRC began their analysis in 1996 in order to predict and estimate the loss of the Net Positive Suction Head (NPSH) by establishing GSI-191. In 1995, NUREG/CR-6224...

Abdulsattar, Suhaeb S

2014-05-03T23:59:59.000Z

217

An hourly-based performance comparison of an integrated micro-structural perforated shading screen with standard shading systems  

E-Print Network [OSTI]

Efficiency and Renewable Energy, Building TechnologiesEfficiency and Renewable Energy, Buildings Energy Databook,

Appelfeld, David

2013-01-01T23:59:59.000Z

218

An hourly-based performance comparison of an integrated micro-structural perforated shading screen with standard shading systems  

E-Print Network [OSTI]

values of the performance indicators, e.g. total solarare the fundamental performance indicators for CFS and all11. Table 2. Energy performance indicators of selected CFS

Appelfeld, David

2013-01-01T23:59:59.000Z

219

Salinity driven oceanographic upwelling  

DOE Patents [OSTI]

The salinity driven oceanographic upwelling is maintained in a mariculture device that includes a long main duct in the general shape of a cylinder having perforated cover plates at each end. The mariculture device is suspended vertically in the ocean such that one end of the main duct is in surface water and the other end in relatively deep water that is cold, nutrient rich and relatively fresh in comparison to the surface water which is relatively warm, relatively nutrient deficient and relatively saline. A plurality of elongated flow segregating tubes are disposed in the main duct and extend from the upper cover plate beyond the lower cover plate into a lower manifold plate. The lower manifold plate is spaced from the lower cover plate to define a deep water fluid flow path to the interior space of the main duct. Spacer tubes extend from the upper cover plate and communicate with the interior space of the main duct. The spacer tubes are received in an upper manifold plate spaced from the upper cover plate to define a surface water fluid flow path into the flow segregating tubes. A surface water-deep water counterflow is thus established with deep water flowing upwardly through the main duct interior for discharge beyond the upper manifold plate while surface water flows downwardly through the flow segregating tubes for discharge below the lower manifold plate. During such counterflow heat is transferred from the downflowing warm water to the upflowing cold water. The flow is maintained by the difference in density between the deep water and the surface water due to their differences in salinity. The upwelling of nutrient rich deep water is used for marifarming by fertilizing the nutrient deficient surface water. 1 fig.

Johnson, D.H.

1984-08-30T23:59:59.000Z

220

Mean-shift algorithms for manifold denoising, matrix completion and clustering  

E-Print Network [OSTI]

Dimensionality reduction with Isomap and LTSA after MBMS de-reduction with Isomap and LTSA af- ter MBMS denoising usingreduction with Isomap and LTSA af- ter MBMS denoising using

Wang, Weiran

2013-01-01T23:59:59.000Z

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


221

A Survey of Manifold-Based Learning Xiaoming Huo, Xuelei (Sherry) Ni, and Andrew K. Smith  

E-Print Network [OSTI]

, local tangent space alignment (LTSA), and charting. We describe the insights from these developments, and local tangent space alignment (LTSA). Section 3 stresses an important common point among some recent choose LLE and LTSA as our illustrative examples. Such a common point is likely to be the key to unifying

Huo, Xiaoming

222

Analysis of High-Dimensional Signal Data by Manifold Learning and Convolutions  

E-Print Network [OSTI]

techniques are including Isomap and LLE meth- ods [4, 7] Local Tangent Space Alignment (LTSA) [6], Sample

Iske, Armin

223

Manifold-Adaptive Dimension Estimation Amir massoud Farahmand amir@cs.ualberta.ca  

E-Print Network [OSTI]

working in high- dimensional spaces to use resources (time, space, sam- ples) that scale exponentially are images taken of a scene or object, from different angles. Although the images may contain millions

Szepesvari, Csaba

224

DISTRIBUTIONAL LIMITS OF RIEMANNIAN MANIFOLDS AND GRAPHS WITH SUBLINEAR GENUS GROWTH  

E-Print Network [OSTI]

-quasi-conformal homeomorphism f : M M. Suppose that (Mi) is a sequence in Q(M, K) and let H be the space of all isometry the Lebesgue measure volMi on Mi induced by the Riemannian metric, and let Mi be the push-forward of the probability measure 1 volMi (Mi) volMi by the continuous map Mi : Mi H, Mi (p) = (Mi, p). It follows from our

Souto, Juan

225

Experimental study of the MHD flow in a prototypic inlet manifold section of the DCLL blanket  

E-Print Network [OSTI]

. The MHD flow patterns and their associated transport properties that result from the interaction between Lithium (DCLL) blanket concept. A series of experiments is carried out in order to understand stacked in the direction the magnetic field lines. For values of the interaction parameter , the flow

Abdou, Mohamed

226

Discussion of the paper "Riemann manifold Langevin and Hamiltonian Monte Carlo methods" by M. Girolami  

E-Print Network [OSTI]

in a poor Effective Sample Size (ESS) for the length-scale parameters (Murray and Adams, 2010). The metric Table 1. ESS for Gibbs Metropolis-Hastings (Gibbs MH), Gibbs Simplified MMALA (Gibbs S-MMALA), Gibbs RM estimated from pilot runs of Gibbs Wht. We also report the number of calls (in thousands) to the functions

Filippone, Maurizio

227

Semi-classical measures on Quantum graphs and the Gau map of the determinant manifold  

E-Print Network [OSTI]

believed that QE does not hold in general for a FIXED quantum graph. This is proved for star graphs in [BKW to what people do in several papers like [BG00, BKW04, BW08, Ba12, BB13]. Let

Recanati, Catherine

228

Semi-classical measures on Quantum graphs and the Gau map of the determinant manifold  

E-Print Network [OSTI]

believed that QE does not hold in general for a FIXED quantum graph. In [BKW04], it is proved that QE does

Boyer, Edmond

229

An approximation of Wiener measure on manifolds with non- positive sectional curvature  

E-Print Network [OSTI]

j 2 ) np ??? ] ? n Z j 2 ) npm ] ? ? (1 ? 4?p) ? ? E[(1 + nZ j ] E[(1 + Using the binomial formula, Z j 2 ) npm ] = E[(1 + n npm npm k k=0 npm npm k k=0 npm npm k k=0 npm npm e k

Laetsch, Thomas A.

2012-01-01T23:59:59.000Z

230

A proof of Price's Law on Schwarzschild black hole manifolds for all angular momenta  

E-Print Network [OSTI]

Price's Law states that linear perturbations of a Schwarzschild black hole fall off as $t^{-2\\ell-3}$ for $t \\to \\infty$ provided the initial data decay sufficiently fast at spatial infinity. Moreover, if the perturbations are initially static (i.e., their time derivative is zero), then the decay is predicted to be $t^{-2\\ell-4}$. We give a proof of $t^{-2\\ell-2}$ decay for general data in the form of weighted $L^1$ to $L^\\infty$ bounds for solutions of the Regge--Wheeler equation. For initially static perturbations we obtain $t^{-2\\ell-3}$. The proof is based on an integral representation of the solution which follows from self--adjoint spectral theory. We apply two different perturbative arguments in order to construct the corresponding spectral measure and the decay bounds are obtained by appropriate oscillatory integral estimates.

Roland Donninger; Wilhelm Schlag; Avy Soffer

2009-08-28T23:59:59.000Z

231

Exhaust System Manifold Development Enhancement Through Multi-Attribute System Design Optimization  

E-Print Network [OSTI]

. Product Development Computerization (PDC), i.e. the design activity carried out semi-automatically by CAx

de Weck, Olivier L.

232

Discrete time robust control systems under structured perturbations: stability manifolds and extremal properties  

E-Print Network [OSTI]

rit irlrrl thrff thr ar rrrfq is cegnlnr, i. rf. , d?g 0 7/ 7. fhf n Pj =) has nn Iftnf on fhr cff'r'le, affd there nic h rvot. Inifrle and n ? h r'ovfs out'i de flic unit rlfsl jc ( 1. Ic'? fe I' r. ' f fir nu7fibe'I' fif nrf/I'Ifll'r pl'(7rfncf... v, liole I'a?&il& i& e&lu&&al& n& to ih& stability of i ape& ial subs&& of it?xpo?cl &dg& s. & sile&i t lic 1. '-& d & ~ l "&: i. /& = 1. . . . /l. Ifarl&ab and J&ir& &'I& & x&& &id?l &l&i~ i&sul& to line? i&i&& rval ??i&&el s, -&n?s. Co?- 21...

Tin, Marie-Lyne Appoline

1992-01-01T23:59:59.000Z

233

Unconstrained optimizers for ICA learning on oblique manifold using Parzen density estimation  

E-Print Network [OSTI]

constraint. Essentially, im- posing the normality constraint implicitly, in line with the ICA definition, a design of the steepest descent (SD), conjugate gradient (CG) with Hager-Zhang (HZ) or a hybrid update on the one hand the computa- tional overhead can be tolerated and on the other hand the solution quality

Aluffi, Paolo

234

INTEGRAL GEOMETRY OF TENSOR FIELDS ON A CLASS OF NON-SIMPLE RIEMANNIAN MANIFOLDS  

E-Print Network [OSTI]

on it. We can always assume that .M; @M / is equipped with a real analytic atlas, while @M and g may we want to trace the dependence of I on perturbations of the metric, it is more convenient to work

Stefanov, Plamen

235

Brain Differences Visualized in the Blind using Tensor Manifold Statistics and Diffusion Tensor Imaging  

E-Print Network [OSTI]

, an overall scalar-valued diffusion measure, such as the trace or mean diffusivity can adequately describe of many subjects are aligned to the same standard template or atlas, maps of the deformation gradients (Jacobians) can be computed in the atlas coordinate system and group statistics can be computed at each voxel

Thompson, Paul

236

INTEGRAL GEOMETRY OF TENSOR FIELDS ON A CLASS OF NON-SIMPLE RIEMANNIAN MANIFOLDS  

E-Print Network [OSTI]

assume that .M; @M / is equipped with a real analytic atlas, while @M and g may or may not be analytic is the linearization of those problems for an appropriate . Since we want to trace the dependence of I on perturbations

Uhlmann, Gunther

237

A GENERALIZED ARRAY MANIFOLD MODEL FOR LOGAL SCATTERING IN WIRELESS COMMUNICATIONS  

E-Print Network [OSTI]

, S-100 44 Stockholm, Sweden 'Dept. of Elec. & Comp. Engineering, Brigham Young University, Provo, UT the conventional plane wave model. 1. INTRODUCTION The use of antenna arrays as a tool for improving coverage reduce radiated power require- ments, allow for multiple mobile co-channel users, and re- duce signal

Swindlehurst, A. Lee

238

Compact Manifolds with Holonomy Spin(7) Christine Taylor, Balliol College, Oxford  

E-Print Network [OSTI]

with Holon- omy Spin(7) 8 2.1 Motivation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2

Joyce, Dominic

239

The Cremmer-Scherk Mechanism in F-theory Compactifications on K3 Manifolds  

E-Print Network [OSTI]

It is well understood --- through string dualities --- that there are 20 massless vector fields in the spectrum of eight-dimensional F-theory compactifications on smooth elliptically fibered K3 surfaces at a generic point in the K3 moduli space. Such F-theory vacua, which do not have any enhanced gauge symmetries, can be thought of as supersymmetric type IIB compactifications on P1 with 24 (p,q) seven-branes. Naively, one might expect there to be 24 massless vector fields in the eight-dimensional effective theory coming from world-volume gauge fields of the 24 branes. In this paper, we show how the vector field spectrum of the eight-dimensional effective theory can be obtained from the point of view of type IIB supergravity coupled to the world-volume theory of the seven-branes. In particular, we first show that the two-forms of the type IIB theory absorb the seven-brane world-volume gauge fields via the Cremmer-Scherk mechanism. We then proceed to show that the massless vector fields of the eight-dimensional theory come from KK-reducing the SL(2,Z) doublet two-forms of type IIB theory along SL(2,Z) doublet one-forms on the P1. We also discuss the relation between these vector fields and the "eaten" world-volume vector fields of the seven-branes.

Michael R. Douglas; Daniel S. Park; Christian Schnell

2014-03-06T23:59:59.000Z

240

Three-dimensional numerical manifold method simulations for blocky rock analysis  

E-Print Network [OSTI]

After decades of development, people realize that there are wider and more various applications of numerical modeling and analysis. However, current feasible software tools cannot satisfy engineering and commercial goals. ...

Shentu, Longfei

2011-01-01T23:59:59.000Z

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


241

Riemannian Optimization Method on the Flag Manifold for Independent Subspace Analysis  

E-Print Network [OSTI]

of Advanced Industrial Science and Technology (AIST), AIST Central2, 1-1-1, Umezono, Tsukuba, Ibaraki 305 , the components si are generated from statistically independent sources, and A Rn×n is an invertible matrix. Most, and curvature. Therefore, by replacing, for instance, an or- dinary gradient vector of a cost function

Plumbley, Mark

242

INVARIANT MANIFOLDS, DISCRETE MECHANICS, AND TRAJECTORY DESIGN FOR A MISSION TO TITAN  

E-Print Network [OSTI]

denser than that of any other moon in the solar system, Saturn's largest moon Titan is a treasure trove Systems, California Institute of Technology, MC 107-81, Pasadena, California 91125, USA. E-mail: egawlik@caltech.edu. Control and Dynamical Systems, California Institute of Technology, MC 107-81, Pasadena, California 91125

Marsden, Jerrold

243

Manifold Methods for Energetic Materials Joseph M. Powers and Samuel Paolucci  

E-Print Network [OSTI]

engines, ­ Gas phase reactions in energetic solid combustion. · Common detailed kinetic models. T (K) x (cm) 300 3000 solid foam gas 0 10 #12;RDX GAS PHASE COMBUSTION SIMULATION · very similar to HMX-Speed Combustion in Gaseous and Condensed-Phase Energetic Materials University of Minnesota 11 November 1999 #12

244

Recent Progress on a Manifold Damped and Detuned Structure for CLIC  

E-Print Network [OSTI]

A damped detuned structure for the main X-band linacs of CLIC is being investigated as an alternative design to the present baseline heavily damped structure. In our earlier designs we studied detuned structures, operating at 11.994 GHz, with a range of dipole bandwidths in order to ensure the structure satisfies beam dynamics and rf breakdown constraints. Here we report on the development of a damped and detuned structure which satisfies both constraints. Preparations for high power testing of the structure are also discussed

Khan, V F; Grudiev, A; Jones, R M; Wuensch, W; Zennaro, R

2010-01-01T23:59:59.000Z

245

Applications of Low Dimensional Manifolds: 1. Resolved Viscous Detonations with Detailed H2/O2 Kinetics,  

E-Print Network [OSTI]

.5 3 3.5 4 x 10 -3 t (ms) [N2 ](mole/cc) 10 -10 10 -5 10 0 0.95 1 1.05 1.1 1.15 x 10 -3 t (ms) [CO2 Alamos National Laboratory Los Alamos, New Mexico 6 October 1999 #12;Acknowledgments Prof. Samuel, · Constant pressure · Diffusive mass, momentum, and energy transport · fastest time scales 10-16 s

246

MKPLS: Manifold Kernel Partial Least Squares for Lipreading and Speaker Identification  

E-Print Network [OSTI]

inefficient. On the other hand, the NIPALS algorithm [26] is an iterative robust procedure for solving eigen-values, speaker dependent, and speaker semi-dependent. Our ap- proach outperforms for the speaker semi- pendent, speaker dependent, and speaker semi-dependent. In both databases, our approach outperforms

Elgammal, Ahmed

247

The prediction of low quality boiling voids  

E-Print Network [OSTI]

Slug flow theory is used to predict the density in heated channels of various shapes. In order to make this calculation possible, measurements are made of the bubble rise velocity in annuli, tube bundles, and channels. It ...

Griffith, P.

1963-01-01T23:59:59.000Z

248

hal-00787849,version1-13Feb2013 ter manifold theory, the former one occurs on a three-  

E-Print Network [OSTI]

, the method is proposed for an autonomous system, in a systematic version, in principle able to be carried out, and in Sect. 6 some conclusions are drawn. 2 The model A paradigmatic autonomous system is considered (see Fig systems falling in this class are structures under wind flow, causing Hopf bifurcation, and dead loads

Paris-Sud XI, Université de

249

J. Phys. Chem. 1981, 85, 3029-3030 3028 intensity, the absorption steps in the ionic manifold will  

E-Print Network [OSTI]

of Vaporlzatlon of a Fluid S. Torqualo Department of Mechanical Engineering, General Motors Institute, Flnt

Torquato, Salvatore

250

Journal of Machine Learning Research (2012) Submitted 7/12; Published x/xx Learning Manifolds in the Wild  

E-Print Network [OSTI]

in the Wild Chinmay Hegde chinmay@rice.edu Aswin C. Sankaranarayanan saswin@rice.edu Richard G. Baraniuk richb employ the KAM framework on a number of real-world image datasets acquired "in the wild" to demonstrate

251

Application of /sup 252/Cf-source driven noise analysis measurements for subcriticality of HFIR fuel elements  

SciTech Connect (OSTI)

The approach-to-critical measurements reported were for a plate-type fuel element where the height of the water moderator and side and top reflector were increased. Measurements were also performed with each of the two annuli of the fuel element to verify both the presence of boron in the fuel plates and the proper uranium loading prior to assembly of the two annuli for full submersion measurements. Measurements were also performed with detectors external to the reflector (> 15 cm of water on top, bottom, and side) for the assembled, submerged HFIR fuel element.

King, W.T.; Mihalczo, J.T.

1983-01-01T23:59:59.000Z

252

Method and apparatus for improved recovery of oil and bitumen using dual completion cyclic steam stimulation  

SciTech Connect (OSTI)

A method is described for increasing hydrocarbon production from a hydrocarbon reservoir comprising: (a) setting a thermal packer in a casing within a well, said thermal packer being set between a first set of perforations and a second set of perforations which is located closer to the surface of the earth than the first set of perforations, such that said thermal packer hydraulically isolates the first set of perforations from the second set of perforations within the casing; (b) injecting steam into the second set of perforations; (c) discontinuing the injection of steam into the second set of perforations; (d) producing hydrocarbons from the first set of perforations; and (e) venting an area in the well adjacent to the first set of perforations during the time that hydrocarbons are being produced.

Beattie, C.I.; Korol, J.R.

1993-08-24T23:59:59.000Z

253

AbstractThe red snapper (Lutjanus campechanus) is currently under rig  

E-Print Network [OSTI]

653 Abstract­The red snapper (Lutjanus campechanus) is currently under rig orous federal and state of annuli in otolith thin sections have been used to age many species of fish, including red snapper. However, the utility of this method for aging red snapper has been questioned by those who dispute both

254

GEOSPATIAL TECHNOLOGY The market for geospatial technologies in 2002 was  

E-Print Network [OSTI]

GEOSPATIAL TECHNOLOGY · The market for geospatial technologies in 2002 was estimated at $5 billion, Annulis,Carr) Building the Geospatial Workforce, Urban and Regional Informational Systems Association Special Education Issue, 2002) · Geospatial products and specialists are expected to play a large role

255

AN EXPLICIT BOUND FOR UNIFORM PERFECTNESS OF THE JULIA SETS OF RATIONAL MAPS  

E-Print Network [OSTI]

Abstract. A compact set C in the Riemann sphere is called uniformly perfect if the moduli of annuli of the Julia sets. We also give a concrete bound for the family of quadratic polynomials fcz = z 2 + c in terms , and afterwards by many authors see 15 and its references. By de nition, the sets with some kind of self

Sugawa, Toshiyuki

256
257

INVITATIONAL WELL-TESTING SYMPOSIUM PROCEEDINGS  

E-Print Network [OSTI]

set a screen liner and gravel pack the perforated interval.the probable radius of the gravel pack. EQUIVALENT INJECTION

Authors, Various

2011-01-01T23:59:59.000Z

258

Prabhakar R. Pagilla* Associate Professor  

E-Print Network [OSTI]

/perforating pro- cesses, the print perforation gets skewed. Further, excessive ten- sion variations may cause section, a process section, and an exit section. The entry section consists of an unwind stand, a tension in the process section in the case of aluminum and steel webs, and printing, perforating, and laminating

Pagilla, Prabhakar R.

259

Green Functions For Wave Propagation on a 5D manifold and the Associated Gauge Fields Generated by a Uniformly Moving Point Source  

E-Print Network [OSTI]

Gauge fields associated with the manifestly covariant dynamics of particles in (3,1) spacetime are five-dimensional. We provide solutions of the classical 5D gauge field equations in both (4,1) and (3,2) flat spacetime metrics for the simple example of a uniformly moving point source. Green functions for the 5D field equations are obtained, which are consistent with the solutions for uniform motion obtained directly from the field equations with free asymptotic conditions.

I. Aharonovich; L. P. Horwitz

2006-03-31T23:59:59.000Z

260

Riemannian holonomy calibrated geometry  

E-Print Network [OSTI]

constructed the first com- pact 7-manifolds with holon- omy G2 in 1993-4. This is difficult as such manifolds

Joyce, Dominic

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


261

aligned phospholipid bicelles: Topics by E-print Network  

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

learn- ing 1, 3, 13Sparse Manifold Alignment Chang Wang IBM Watson Research Center Yorktown Heights, NY chwang Abstract Previous approaches to manifold alignment are based on...

262

Curriculum Vitae  

E-Print Network [OSTI]

Thesis topic: G-Frobenius Manifolds. Advisor: Prof. Ralph M. Kaufmann ... Publication. G-Frobenius manifolds, 39 pages, arXiv:1501.02118, submitted.

2015-02-11T23:59:59.000Z

263

Conductivity of ionic liquid-derived polymers with internal gold nanoparticle conduits.  

SciTech Connect (OSTI)

The transport properties of self-supporting Au nanoparticle-ionic liquid-derived polymer composites were characterized. Topographic AFM images confirm the perforated lamellar composite architecture determined by small-angle X-ray scattering (SAXS) and further show that the in situ synthesized Au nanoparticles are localized within the hydrophilic (water) domains of the structure. At low Au nanoparticle content, the images reveal incomplete packing of spherical particles (i.e., voids) within these columns. The confinement and organization of the Au nanoparticles within the hydrophilic columns give rise to a large manifold of optical resonances in the near-IR region. The bulk composite conductivity, R{sub b}, was determined by ac electrochemical impedance spectroscopy (EIS) for samples prepared with increasing Au{sup 3+} content over a frequency range of 10 Hz to 1 MHz. A 100-fold increase was observed in the bulk conductivity at room temperature for composites prepared with the highest amount of Au{sup 3+} (1.58 {+-} 0.065 {micro}mol) versus the no Au composite, with the former reaching a value of 1.3 x 10{sup -4} S cm{sup -1} at 25 C. The temperature dependence of the conductivity recorded over this range was well-modeled by the Arrhenius equation. EIS studies on samples containing the highest Au nanoparticle content over a broader range of frequencies (2 x 10{sup -2} Hz to 5 x 10{sup 5} Hz) identified a low frequency component ascribed to electronic conduction. Electronic conduction due to aggregated Au nanoparticles was further confirmed by dc conductivity measurements. This work identifies a nanostructured composite that exhibits both ionic transport through the polymeric ionic liquid and electronic conduction from the organized encapsulated columns of Au nanoparticles.

Lee, S.; Cummins, M. D.; Willing, G. A.; Firestone, M. A.; Materials Science Division; Univ. of Louisville

2009-01-01T23:59:59.000Z

264

Estimation of vertical permeability from production data of wells in bottom water drive reservoirs  

E-Print Network [OSTI]

in Vertical Permeability Introduced by Erroneous Horizontal Permeabilty on Future performance of a Mell 13 39 43 43 10 Effect of Production From Test Perforation on Future Performance of a Well (Kh/Kv 1) . . . . . . . . . . . 57 Effect of Production... between perforations and the WOC, Kh/Kv = I . . . . . . . . . . . . . . . . . . . . . . . 17 Effect of cell break-up on producing WOR performance for 9 ft interval between perforations and the WOC, Kh/Kv 30 . l8 Effect of cell break-up on cumulative...

Tirek, Ali

1982-01-01T23:59:59.000Z

265

Ms. Sharon M. Fiorillo  

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

Morgantown, WV 26507 Kathy J. Clinton President Perfor.mance Results Corporation 2605 Cranberry Square Morgantown, WV 26508 Michelle Rodriguez de Varela Whistleblower Program...

266

Innovative outreach increases adoption of sustainable winegrowing practices in Lodi region  

E-Print Network [OSTI]

wine- growing will need to move past simply tracking practices and include perfor- mance measures, such as the amount of energy

Ohmart, Clifford P.

2008-01-01T23:59:59.000Z

267

Solar Ventilation Preheating Resources and Technologies | Department...  

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

Ventilation Preheating Resources and Technologies Solar Ventilation Preheating Resources and Technologies Photo of a dark brown perforated metal wall is pictured on the side of an...

268

E-Print Network 3.0 - aqueous perchloric acid Sample Search Results  

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

on Remediation of Chlorinated and Recalcitrant Compounds (Monterey, Summary: media were held down by the perforated plate and were not fluidized. Perchlorate, acetic acid,...

269

Statistical and Domain Analytics Applied to PV Module Lifetime...  

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

This process exemplifies the development of a methodology to determine lifetime and degradation pathways present in modules and their eects on module perfor- and is...

270

Dynamic State Alteration Techniques for Automatically Locating Software Errors  

E-Print Network [OSTI]

on High Perfor- mance Computer Architecture, pages 121–132,on High- Performance Computer Architecture, pages 243–247,Symposium on Computer Architecture, pages 284–295, June

Jeffrey, Dennis

2009-01-01T23:59:59.000Z

271

Compact Modeling and Analysis for Electronic and Thermal Effects of Nanometer Integrated and Packaged Systems  

E-Print Network [OSTI]

Int. Symp. on Computer Architecture ( ISCA), pages 314–324,Proc. Int. Symp. on Computer Architecture (ISCA), pages 83–High Perfor- mance Computer Architecture (HPCA), pages 15–

WANG, HAI

2012-01-01T23:59:59.000Z

272

E-Print Network 3.0 - abscess gas formation Sample Search Results  

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

if there is evidence of intestinal obstruction, abscess formation, perforation, fis... -old white woman with a history of gas- trointestinal problems presented with ab-...

273

E-Print Network 3.0 - advanced electrocardiographic predictors...  

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

and Information Sciences 7 We introduce Branch Predictor Prediction (BPP) as a power-aware branch prediction technique for high perfor- Summary: ABSTRACT We introduce...

274

ENERGY & ENVIRONMENT DIVISION. ANNUAL REPORT FY 1980  

E-Print Network [OSTI]

active solar methodology, BNL boiler and furnace perfor-furnaces. Component Based Systems (CBS) A major addition to the program is an active solar

Authors, Various

2010-01-01T23:59:59.000Z

275

Co-simulation of innovative integrated HVAC systems in buildings  

E-Print Network [OSTI]

Canada: International Building Perfor- mance SimulationExternal coupling between building energy simulation andexternal coupling of building energy and air ow modeling

Trcka, Marija

2010-01-01T23:59:59.000Z

276

ENERGY EFFICIENCY TECHNOLOGY ROADMAP VOLUME 7: INDUSTRIAL FOOD...  

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

leak detection Preliminary study how laser perforation of blueberry can improve fruit infusion with more yield and better quality Laser food processing (marker and micro...

277

Power module assemblies with staggered coolant channels  

DOE Patents [OSTI]

A manifold is provided for supporting a power module assembly with a plurality of power modules. The manifold includes a first manifold section. The first face of the first manifold section is configured to receive the first power module, and the second face of the first manifold section defines a first cavity with a first baseplate thermally coupled to the first power module. The first face of the second manifold section is configured to receive the second power module, and the second face of the second manifold section defines a second cavity with a second baseplate thermally coupled to the second power module. The second face of the first manifold section and the second face of the second manifold section are coupled together such that the first cavity and the second cavity form a coolant channel. The first cavity is at least partially staggered with respect to second cavity.

Herron, Nicholas Hayden; Mann, Brooks S; Korich, Mark D

2013-07-16T23:59:59.000Z

278

Well completion process for formations with unconsolidated sands  

DOE Patents [OSTI]

A method for consolidating sand around a well, involving injecting hot water or steam through well casing perforations in to create a cement-like area around the perforation of sufficient rigidity to prevent sand from flowing into and obstructing the well. The cement area has several wormholes that provide fluid passageways between the well and the formation, while still inhibiting sand inflow.

Davies, David K. (Kingwood, TX); Mondragon, III, Julius J. (Redondo Beach, CA); Hara, Philip Scott (Monterey Park, CA)

2003-04-29T23:59:59.000Z

279

Generalized Time Warping for Multi-modal Alignment of Human Motion  

E-Print Network [OSTI]

[7] proposed dynamic manifold warp- ing (DMW) that extends CTW to incorporate more complex spatial transformations through manifold learning. How- ever, CTW and DMW have three main limitations due to reliance

De la Torre, Fernando

280

Featured Photo  

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

First | Prev | 1 1 | Next | Last Back to Index Gas for NIF Targets A NIF Cryogenic System technician takes measurements in the target positioner gas manifold. The gas manifold is...

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


281

Machine Vision and Applications DOI 10.1007/s00138-008-0169-4  

E-Print Network [OSTI]

. For example,Local tangent space alignment (LTSA) is a manifold learning algorithm efficient for many nonlinear

Ge, Shuzhi Sam

282

H-curve 305 -limit set 436  

E-Print Network [OSTI]

Activation entropy 51 Approximate invariant manifold 66 Arrhenius equation 51 BGK model 27 BKW-mode 256

Gorban, Alexander N.

283

Instructions for use Parallel and four-step synthesis of natural-product-  

E-Print Network [OSTI]

a piperidine-based manifold 6, having a carboxylic acid group, was achieved through Ugi condensation, N

Tsunogai, Urumu

284

Atomizing nozzle and process  

DOE Patents [OSTI]

High pressure atomizing nozzle includes a high pressure gas manifold having a divergent expansion chamber between a gas inlet and arcuate manifold segment to minimize standing shock wave patterns in the manifold and thereby improve filling of the manifold with high pressure gas for improved melt atomization. The atomizing nozzle is especially useful in atomizing rare earth-transition metal alloys to form fine powder particles wherein a majority of the powder particles exhibit particle sizes having near-optimum magnetic properties.

Anderson, I.E.; Figliola, R.S.; Molnar, H.M.

1993-07-20T23:59:59.000Z

285

Microfluidic Technologies for Quantitative Single Cell Analysis  

E-Print Network [OSTI]

and pressurized air. An Arduino processor and onboard memorya manifold on the left. An Arduino processor enables complex

Novak, Richard

2013-01-01T23:59:59.000Z

286

2011  

E-Print Network [OSTI]

{Manifold Identification in Dual Averaging for Regularized Stochastic Online Learning Sangkyun Lee, Stephen ... Jieqiu Chen, Sam Burer. Convex Optimization

287

Universitat Regensburg Deformations of associative  

E-Print Network [OSTI]

construction of compact holon- omy G2­manifolds [23]. As they are necessarily seven dimensional, one refers

Regensburg, Universität - Naturwissenschaftliche Fakultät I

288

Principles of algebraic geometry' (Griffiths and Harris).pdf  

E-Print Network [OSTI]

like a supernova. His conceptions of intrinsic geometry on a manifold, topology, function theory on a Riemann surface, birational transformations,.

289

The Cotton tensor and the Ricci flow  

E-Print Network [OSTI]

We compute the evolution equation of the Cotton tensor under the Ricci flow of a three dimensional Riemannian manifold.

Mantegazza, Carlo

2012-01-01T23:59:59.000Z

290

Two-dimensional Ricci flow as a stochastic process  

E-Print Network [OSTI]

We prove that, for a two-dimensional Riemannian manifold, the Ricci flow is obtained by a Wiener process.

Marco Frasca

2009-01-29T23:59:59.000Z

291

Neural Network Modeling of Abrasive Flow Machining Alice E. Smith  

E-Print Network [OSTI]

-line controller for abrasive flow machining of automotive engine intake manifolds. The process is only observable of critical components. It has been applied in the aerospace, automotive, electronic and die-making industries that the Ford Contour SVT intake manifold will be an #12;aluminum alloy. An optimal intake manifold would

Smith, Alice E.

292

Dipartimento di Matematica A. CENA, G. PISTONE  

E-Print Network [OSTI]

Dipartimento di Matematica A. CENA, G. PISTONE EXPONENTIAL STATISTICAL MANIFOLD Rapporto interno N;EXPONENTIAL STATISTICAL MANIFOLD ALBERTO CENA AND GIOVANNI PISTONE Abstract. We consider the non. Pistone and C. Sempi. Analytic prop- erties of such a manifold are discussed. Especially, we discuss

Ceragioli, Francesca

293

Self-defrosting recuperative air-to-air heat exchanger  

DOE Patents [OSTI]

A heat exchanger is described which includes a stationary spirally or concentrically wound heat exchanger core with rotating baffles on upper and lower ends thereof. The rotating baffles include rotating inlets and outlets which are in communication with respective fixed inlets and outlets via annuli. The rotation of the baffles causes a concurrent rotation of the temperature distribution within the stationary exchanger core, thereby preventing frost build-up in some applications and preventing the formation of hot spots in other applications. 3 figures.

Drake, R.L.

1993-12-28T23:59:59.000Z

294

Jet-controlled freeze valve for use in a glass melter  

DOE Patents [OSTI]

A drain valve for use in furnace for the melting of thermoplastic material is disclosed. The furnace includes a drain cavity formed in its bottom for withdrawing a flow of thermoplastic material. The drain valve includes a flow member which include a flow tube having an inlet and outlet for the material, and coaxially disposed concentric tubular members defining annuli surrounding the flow tube. The tubular members include heating and cooling means for the flow tube. The drain valve can also be used in a furnace of glass melting that includes a drain cavity for withdrawing molten glass from the furnace.

Routt, K.R.

1985-07-29T23:59:59.000Z

295

Microchannel heat sink assembly  

DOE Patents [OSTI]

The present invention provides a microchannel heat sink with a thermal range from cryogenic temperatures to several hundred degrees centigrade. The heat sink can be used with a variety of fluids, such as cryogenic or corrosive fluids, and can be operated at a high pressure. The heat sink comprises a microchannel layer preferably formed of silicon, and a manifold layer preferably formed of glass. The manifold layer comprises an inlet groove and outlet groove which define an inlet manifold and an outlet manifold. The inlet manifold delivers coolant to the inlet section of the microchannels, and the outlet manifold receives coolant from the outlet section of the microchannels. In one embodiment, the manifold layer comprises an inlet hole extending through the manifold layer to the inlet manifold, and an outlet hole extending through the manifold layer to the outlet manifold. Coolant is supplied to the heat sink through a conduit assembly connected to the heat sink. A resilient seal, such as a gasket or an O-ring, is disposed between the conduit and the hole in the heat sink in order to provide a watertight seal. In other embodiments, the conduit assembly may comprise a metal tube which is connected to the heat sink by a soft solder. In still other embodiments, the heat sink may comprise inlet and outlet nipples. The present invention has application in supercomputers, integrated circuits and other electronic devices, and is suitable for cooling materials to superconducting temperatures. 13 figs.

Bonde, W.L.; Contolini, R.J.

1992-03-24T23:59:59.000Z

296

Apparatus and method for cooling a combustor cap  

DOE Patents [OSTI]

A combustor includes an end cap having a perforated downstream plate and a combustion chamber downstream of the downstream plate. A plenum is in fluid communication with the downstream plate and supplies a cooling medium to the combustion chamber through the perforations in the downstream plate. A method for cooling a combustor includes flowing a cooling medium into a combustor end cap and impinging the cooling medium on a downstream plate in the combustor end cap. The method further includes flowing the cooling medium into a combustion chamber through perforations in the downstream plate.

Zuo, Baifang; Washam, Roy Marshall; Wu, Chunyang

2014-04-29T23:59:59.000Z

297

Gradient zone-boundary control in salt-gradient solar ponds  

DOE Patents [OSTI]

A method and apparatus for suppressing zone boundary migration in a salt gradient solar pond includes extending perforated membranes across the pond at the boundaries, between the convective and non-convective zones, the perforations being small enough in size to prevent individual turbulence disturbances from penetrating the hole, but being large enough to allow easy molecular diffusion of salt thereby preventing the formation of convective zones in the gradient layer. The total area of the perforations is a sizeable fraction of the membrane area to allow sufficient salt diffusion while preventing turbulent entrainment into the gradient zone.

Hull, J.R.

1982-09-29T23:59:59.000Z

298

Fuel combustion exhibiting low NO{sub x} and CO levels  

DOE Patents [OSTI]

Method and apparatus are disclosed for safely combusting a fuel in such a manner that very low levels of NO{sub x} and CO are produced. The apparatus comprises an inlet line containing a fuel and an inlet line containing an oxidant. Coupled to the fuel line and to the oxidant line is a mixing means for thoroughly mixing the fuel and the oxidant without combusting them. Coupled to the mixing means is a means for injecting the mixed fuel and oxidant, in the form of a large-scale fluid dynamic structure, into a combustion region. Coupled to the combustion region is a means for producing a periodic flow field within the combustion region to mix the fuel and the oxidant with ambient gases in order to lower the temperature of combustion. The means for producing a periodic flow field can be a pulse combustor, a rotating band, or a rotating cylinder within an acoustic chamber positioned upstream or downstream of the region of combustion. The mixing means can be a one-way flapper valve; a rotating cylinder; a rotating band having slots that expose open ends of said fuel inlet line and said oxidant inlet line simultaneously; or a set of coaxial fuel annuli and oxidizer annuli. The means for producing a periodic flow field may or may not be in communication with an acoustic resonance. When employed, the acoustic resonance may be upstream or downstream of the region of combustion. 14 figs.

Keller, J.O.; Bramlette, T.T.; Barr, P.K.

1996-07-30T23:59:59.000Z

299

UV water disinfector  

DOE Patents [OSTI]

A UV disinfector with a gravity driven feed water delivery system, and an air-suspended bare UV lamp. The disinfector is hydrodynamically optimized with a laminerizing, perforated baffle wall, beveled treatment chamber, and outlet weir.

Gadgil, Ashok (El Cerrito, CA); Garud, Vikas (Bombay, IN)

1998-07-14T23:59:59.000Z

300

Wire and column modeling  

E-Print Network [OSTI]

The goal of this thesis is to introduce new methods to create intricate perforated shapes in a computing environment. Modeling shapes with a large number of holes and handles, while requiring minimal human interaction, is an unsolved research...

Mandal, Esan

2004-09-30T23:59:59.000Z

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


301

February 10, 2010, Human Resource Services Jacksonville Update  

E-Print Network [OSTI]

/ Arizona State Univ ­ Phoenix campus (2007) ­ University of Miami / Florida Atlantic University ­ Boca education. 1987/1988 ­ 600 student weeks performed in Jacksonville 2008/2009 ­ 3,242 student weeks perfor

Mazzotti, Frank

302

Brief Contributions________________________________________________________________________________ A Counter Architecture for Online DVFS  

E-Print Network [OSTI]

Brief Contributions and practical way for estimating its impact on perfor- mance and energy consumption. Existing DVFS profitability impact of DVFS is proportional scaling, i.e., performance is assumed to scale proportionally with supply

Eeckhout, Lieven

303

Multi-mode Energy Management for Multi-tier Server Tibor Horvath  

E-Print Network [OSTI]

Multi-mode Energy Management for Multi-tier Server Clusters Tibor Horvath tibor Charlottesville, VA 22904 ABSTRACT This paper presents an energy management policy for recon- figurable clusters General Terms Algorithms, Design, Experimentation, Management, Perfor- mance Keywords energy management

Skadron, Kevin

304

GENOTYPE x ENVIRONMENT INTERACTIONS (1) J. C. BOWMAN  

E-Print Network [OSTI]

GENOTYPE x ENVIRONMENT INTERACTIONS (1) J. C. BOWMAN Department of Agriculture, University of Reading, Great Britain SUMMARY A genotype x environment interaction may be defined as a change in the relative perfor- mance of a 'environments

Boyer, Edmond

305

UV water disinfector  

DOE Patents [OSTI]

A UV disinfector with a gravity driven feed water delivery system and an air-suspended bare UV lamp are disclosed. The disinfector is hydrodynamically optimized with a laminerizing, perforated baffle wall, beveled treatment chamber, and outlet weir. 7 figs.

Gadgil, A.; Garud, V.

1998-07-14T23:59:59.000Z

306

The recovery of oil from carbonate reservoirs by fluid injection  

E-Print Network [OSTI]

Pennsylvanian Pennsylvanian Pennsylvanian Canyon Reef Canyon Reef Pennsylvanian Reef Penney'lvanian Reef Penn'sylvanian Reef Wolfcamp San Andres Silurian OH ? open hole completion P - perforated completion 81 31 40 44 45 39 ll 28 10 127 296...

Coleman, Dwayne Marvin

1954-01-01T23:59:59.000Z

307

Prediction of subgap states in Zn- and Sn-based oxides using various exchange-correlation functionals  

E-Print Network [OSTI]

through contract No. NMP3-LA- 2010-246334 (ORAMA). The calculations at Cambridge were performed using the High Performance Computing Facility, Darwin, and also the UK national high perfor- mance computing service ARCHER, for which access was obtained via...

Körner, Wolfgang; Urban, Daniel F.; Ramo, David Muñoz; Bristowe, Paul D.; Elsässer, Christian

2014-11-21T23:59:59.000Z

308

Seismic imaging of hydraullically-stimulated fractures: A numerical study of the effect of the source mechanism  

E-Print Network [OSTI]

We present a numerical study of seismic imaging of hydraulically stimulated fractures using a single source from an adjacent fracturing-process. The source is either a point force generated from the perforation of the ...

Shabelansky, Andrey Hanan

2012-01-01T23:59:59.000Z

309

Automated Fingerprinting of Performance Pathologies Using Performance Monitoring Units (PMUs)  

E-Print Network [OSTI]

challenge. We describe a technique that uses data mining to automatically fingerprint a program's perfor (PMU). These events can provide insights into how running code is exploiting hardware resources

Gupta, Indranil

310

Hege Langjord Nonlinear observer and  

E-Print Network [OSTI]

influenced by noise than sensors found in test rigs made for research and development. Motor vibration, including filtering of position for suppression of noise, shows best perfor- mance. The adaptation

Johansen, Tor Arne

311

This is an author-deposited version published in: http://oatao.univ-toulouse.fr/ Eprints ID: 8924  

E-Print Network [OSTI]

the infusion. Simulations were performed to analyze the infusion of sandwich composite parts with perforate developed: Resin Transfer Molding (RTM), Liquid Resin Infusion (LRI), Resin Film Infusion (RFI), etc... [1

Paris-Sud XI, Université de

312

Decision making in the purchase of siding: A survey of architects,  

E-Print Network [OSTI]

National Association of Home Builders (NAHB) data show of a home is an impor- tant decision. The choice of siding has a direct influence on appearance, perfor- mance, durability, repair, maintenance, and cost. Todays marketplace presents designers, builders

Schweik, Charles M.

313

Method of manufacturing a heat pipe wick with structural enhancement  

DOE Patents [OSTI]

Heat pipe wick structure wherein a stout sheet of perforated material overlays a high performance wick material such as stainless steel felt affixed to a substrate. The inventive structure provides a good flow path for working fluid while maintaining durability and structural stability independent of the structure (or lack of structure) associated with the wick material. In one described embodiment, a wick of randomly laid .about.8 micron thickness stainless steel fibers is sintered to a metal substrate and a perforated metal overlay.

Andraka, Charles E. (Albuquerque, NM); Adkins, Douglas R. (Albuquerque, NM); Moreno, James B. (Albuquerque, NM); Rawlinson, K. Scott (Albuquerque, NM); Showalter, Steven K. (Albuquerque, NM); Moss, Timothy A. (Albuquerque, NM)

2006-10-24T23:59:59.000Z

314

Heat pipe wick with structural enhancement  

DOE Patents [OSTI]

Heat pipe wick structure wherein a stout sheet of perforated material overlays a high performance wick material such as stainless steel felt affixed to a substrate. The inventive structure provides a good flow path for working fluid while maintaining durability and structural stability independent of the structure (or lack of structure) associated with the wick material. In one described embodiment, a wick of randomly laid .about.8 micron thickness stainless steel fibers is sintered to a metal substrate and a perforated metal overlay.

Andraka, Charles E.; Adkins, Douglas R.; Moreno, James B.; Rawlinson, K. Scott; Showalter, Steven K.; Moss, Timothy A.

2003-11-18T23:59:59.000Z

315

Fire suppressing apparatus. [sodium fires  

DOE Patents [OSTI]

Apparatus for smothering a liquid sodium fire comprises a pan, a perforated cover on the pan, and tubed depending from the cover and providing communication between the interior of the pan and the ambient atmosphere through the perforations in the cover. Liquid caught in the pan rises above the lower ends of the tubes and thus serves as a barrier which limits the amount of air entering the pan.

Buttrey, K.E.

1980-12-19T23:59:59.000Z

316

Building Blocks in Turaev-Viro Theory  

E-Print Network [OSTI]

We study the form of the Turaev-Viro partition function Z(M) for different 3-manifolds with boundary. We show that for $S^2$ boundaries Z(M) factorizes into a term which contains the boundary dependence and another which depends only on the topology of the underlying manifold. From this follows easily the formula for the connected sum of two manifolds Z(M # N). For general $T_g$ boundaries this factorization holds only in a particular case.

Radu Ionicioiu

1996-12-02T23:59:59.000Z

317

Convergence analysis of Riemannian trust-region methods  

E-Print Network [OSTI]

Jun 19, 2006 ... Jo˜ao Xavier and Victor Barroso, Intrinsic variance lower bound (IVLB): An extension of the. Cramer-Rao bound to Riemannian manifolds, Proc.

2006-06-19T23:59:59.000Z

318

algorithm based non-polynomial: Topics by E-print Network  

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

Algorithm Computer Technologies and Information Sciences Websites Summary: for LTSA in a special case. 1 Introduction Manifold learning (ML) methods have attracted...

319

artificial convergent transcription: Topics by E-print Network  

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

Algorithm Computer Technologies and Information Sciences Websites Summary: for LTSA in a special case. 1 Introduction Manifold learning (ML) methods have attracted...

320

algorithm based descriptor: Topics by E-print Network  

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

Algorithm Computer Technologies and Information Sciences Websites Summary: for LTSA in a special case. 1 Introduction Manifold learning (ML) methods have attracted...

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


321

The Poincare'-Lyapounov-Nekhoroshev theorem for involutory systems of vector fields  

E-Print Network [OSTI]

We extend the Poincare'-Lyapounov-Nekhoroshev theorem from torus actions and invariant tori to general (non-abelian) involutory systems of vector fields and general invariant manifolds.

G. Gaeta

2006-03-05T23:59:59.000Z

322

E-Print Network 3.0 - air-conditioning equipment lorentz Sample...  

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

A. Zeghib Abstract This is the first part... of a series on non-compact groups acting iso- metrically on compact Lorentz manifolds. This subject... , and especially Lorentz...

323

Seedless Polyol Synthesis and CO Oxidation Activity of Monodisperse (111) and (100)-Oriented Rhodium Nanocrystals in Sub-10 nm Sizes  

E-Print Network [OSTI]

the manifold was filled with 40 Torr CO (Praxair, UHP), 100Torr O 2 (Praxair, UHP), and abalance of He (Praxair, UHP) initially at atmospheric

Zhang, Yawen

2011-01-01T23:59:59.000Z

324

Rhodium Catalysts in the Oxidation of CO by O2 and NO: Shape, Composition, and Hot Electron Generation  

E-Print Network [OSTI]

the manifold was filled with 40 Torr CO (Praxair, UHP), 100Torr O 2 (Praxair, UHP), and abalance of He (Praxair, UHP) initially at atmospheric

Renzas, James R.

2010-01-01T23:59:59.000Z

325

A K-theoretic interpretation of real Deligne cohomology.  

E-Print Network [OSTI]

We show that real Deligne cohomology of a complex manifold X arises locally as a topological vector space completion of the analytic Lie groupoid of holomorphic vector bundles.

J. P. Pridham

326

Combustion optimization in a hydrogen-enhanced lean burn SI engine  

E-Print Network [OSTI]

Lean operation of spark ignition (SI) automotive engines offers attractive performance incentives. Lowered combustion temperatures inhibit NO[sub]x pollutant formation while reduced manifold throttling minimizes pumping ...

Goldwitz, Joshua A. (Joshua Arlen), 1980-

2004-01-01T23:59:59.000Z

327

E-Print Network 3.0 - analytic functions defined Sample Search...  

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

plex... -manifold and A is a ... Source: Aschenbrenner, Matthias - Department of Mathematics, University of California at Los Angeles Collection: Mathematics 2 MATH 417...

328

apparent diffusion-weighted images: Topics by E-print Network  

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

revised 28 March 2008; accepted 29 March 2008 Abstract Geometric distortion Qiu, Anqi 8 Multivariate General Linear Models (MGLM) on Riemannian Manifolds with Applications to...

329

CONDITIONING AND INITIAL ENLARGEMENT OF FILTRATION ON ...  

E-Print Network [OSTI]

CSDES ON A MANIFOLD. 2303. [14] FITZSIMMONS, P., PITMAN, J. W. and YOR, M. (1993). Markovian bridges, construction, Palm interpretation and splicing.

2004-09-03T23:59:59.000Z

330

E-Print Network 3.0 - andrei krivoshei vello Sample Search Results  

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

13. Juan Antonio Navarro Perez and ... Source: Fhndrich, Manuel A. - Microsoft Research Collection: Computer Technologies and Information Sciences 8 Principal manifolds and...

331

Some studies on industrial Refrigeration system integrated With encapsulated pcm in cool Thermal energy storage system;.  

E-Print Network [OSTI]

??The widespread use of refrigeration and air conditioning utilities newlineespecially in the developing countries has increased manifold during the last newlinedecade This additional load on… (more)

Cheralathan M

2014-01-01T23:59:59.000Z

332

advanced digestive endoscopy: Topics by E-print Network  

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

sets are topics of research. Virtual endoscopy is a promising new technique to explore hollow organs and anatomical cavities. The fields of application are manifold... Anna...

333

E-Print Network 3.0 - aging tests ii Sample Search Results  

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

Technologies and Information Sciences ; Engineering 12 1178 IEEE TRANSACTIONS ON IMAGE PROCESSING, VOL. 17, NO. 7, JULY 2008 Image-Based Human Age Estimation by Manifold...

334

Development of Novel Transition Metal Catalyzed Transformations Involving Small, Strained Carbocycles  

E-Print Network [OSTI]

................................................................................... 84 2.4.3. Synthesis Gas Manifold Construction ..................................................... 85 2.4.4. General Procedure for Ligand Screening................................................. 87 2.4.5. Analytical Procedure...

Sherrill, William M.

2009-01-01T23:59:59.000Z

335

The Casimir Effect for Generalized Piston Geometries  

E-Print Network [OSTI]

In this paper we study the Casimir energy and force for generalized pistons constructed from warped product manifolds of the type $I\\times_{f}N$ where $I=[a,b]$ is an interval of the real line and $N$ is a smooth compact Riemannian manifold either with or without boundary. The piston geometry is obtained by dividing the warped product manifold into two regions separated by the cross section positioned at $R\\in(a,b)$. By exploiting zeta function regularization techniques we provide formulas for the Casimir energy and force involving the arbitrary warping function $f$ and base manifold $N$.

Guglielmo Fucci; Klaus Kirsten

2012-03-29T23:59:59.000Z

336

active fault detection: Topics by E-print Network  

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

with wireless communications are the bedrock of an emerging are manifold from diet monitor- ing 18, activity detection 4, 3, and health crisis support 9. We focus...

337

Accelerated line-search and trust-region methods  

E-Print Network [OSTI]

Apr 3, 2008 ... hold when the methods are accelerated. The analysis is performed in the gen- eral context of optimization on manifolds, of which optimization ...

2008-04-03T23:59:59.000Z

338

Modular robot  

DOE Patents [OSTI]

A modular robot may comprise a main body having a structure defined by a plurality of stackable modules. The stackable modules may comprise a manifold, a valve module, and a control module. The manifold may comprise a top surface and a bottom surface having a plurality of fluid passages contained therein, at least one of the plurality of fluid passages terminating in a valve port located on the bottom surface of the manifold. The valve module is removably connected to the manifold and selectively fluidically connects the plurality of fluid passages contained in the manifold to a supply of pressurized fluid and to a vent. The control module is removably connected to the valve module and actuates the valve module to selectively control a flow of pressurized fluid through different ones of the plurality of fluid passages in the manifold. The manifold, valve module, and control module are mounted together in a sandwich-like manner and comprise a main body. A plurality of leg assemblies are removably connected to the main body and are removably fluidically connected to the fluid passages in the manifold so that each of the leg assemblies can be selectively actuated by the flow of pressurized fluid in different ones of the plurality of fluid passages in the manifold. 12 figs.

Ferrante, T.A.

1997-11-11T23:59:59.000Z

339

E-Print Network 3.0 - analysis methods applied Sample Search...  

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

Summary: Methods in Applied Sciences and Engineering (ECCOMAS 2008) June 30 -July 5, 2008 Venice, Italy Manifold... -mail: marino.arroyo@upc.edu Key Words: meshfree methods,...

340

E-Print Network 3.0 - analysis method applied Sample Search Results  

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

Summary: Methods in Applied Sciences and Engineering (ECCOMAS 2008) June 30 -July 5, 2008 Venice, Italy Manifold... -mail: marino.arroyo@upc.edu Key Words: meshfree methods,...

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


341

area scattering phase: Topics by E-print Network  

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

numerical value. Nathan Poliatzky 1993-04-04 7 Scattering phase asymptotics with fractal remainders Mathematical Physics (arXiv) Summary: For a Riemannian manifold (M,g)...

342

HCCI in a Variable Compression Ratio Engine: Effects of Engine...  

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

Fuels Practical Full Time HCCI Operation Will Require Specific HCCI Fuel Low Octane gasoline Experimental Variables Experimental Variables Engine Variables Intake Manifold...

343

Continuous Dynamical Systems Math 181 -Spring 2010  

E-Print Network [OSTI]

will be an integral part of the course with examples including mechanical vibrations, biological rhythms, circuits, stable and unstable manifolds, fixed points and linearization, topological equivalence, , homoclinic

Jacobsen, Jon T.

344

Transformation Formula of the "2nd" Order Mock Theta Function  

E-Print Network [OSTI]

We give a transformation formula for the ``2nd order'' mock theta function which was recently proposed in connection with the quantum invariant for the Seifert manifold.

Kazuhiro Hikami

2006-04-04T23:59:59.000Z

345

ORALLOY (93.2 235U) METAL CYLINDER WITH BERYLLIUM TOP REFLECTOR  

SciTech Connect (OSTI)

A variety of critical experiments were constructed of enriched uranium metal during the 1960s and 1970s at the Oak Ridge Critical Experiments Facility (ORCEF) in support of criticality safety operations at the Y-12 Plant. The purposes of these experiments included the evaluation of storage, casting, and handling limits for the Y-12 Plant and providing data for verification of calculation methods and cross-sections for nuclear criticality safety applications. These included solid cylinders of various diameters, annuli of various inner and outer diameters, two and three interacting cylinders of various diameters, and graphite and polyethylene reflected cylinders and annuli. Of the hundreds of delayed critical experiments, one experiment was comprised of a stack of approximately 7-inch-diameter metal discs. The bottom of the stack consisted of uranium with an approximate height of 4-1/8 inches. The top of the stack consisted of beryllium with an approximate height of 5-9/16 inches. This experiment was performed on August 20, 1963 by J. T. Mihalczo and R. G. Taylor (Ref. 1) with accompanying logbook. Both detailed and simplified model specifications are provided in this evaluation. This fast-spectra experiment was determined to represent an acceptable benchmark. The calculated eigenvalues for both the detailed and simple models are within approximately 0.5% of the benchmark values, but significantly greater than 3s from the benchmark value because the uncertainty in the benchmark is very small: ±0.0002 (1s). There is significant variability between results using different neutron cross section libraries, the greatest being a ?keff of ~0.65% . Unreflected and unmoderated experiments with the same highly enriched uranium metal parts were performed at the Oak Ridge Critical Experiments Facility in the 1960s and are evaluated in HEU MET FAST 051. Thin graphite reflected (2 inches or less) experiments also using the same highly enriched uranium metal parts are evaluated in HEU MET FAST 071. Polyethylene-reflected configurations are evaluated in HEU-MET-FAST-076. Highly enriched metal annuli with beryllium cores are evaluated in HEU-MET-FAST-059.

John D. Bess; Leland M. Montierth; Raymond Reed; John T. Mihalczo

2010-09-01T23:59:59.000Z

346

Light-Water Breeder Reactor  

DOE Patents [OSTI]

Described is a light-water-moderated and -cooled nuclear breeder reactor of the seed-blanket type characterized by core modules comprising loosely packed blanket zones enriched with fissile fuel and axial zoning in the seed and blanket regions within each core module. Reactivity control over lifetime is achieved by axial displacement of movable seed zones without the use of poison rods in the embodiment illustrated. The seed is further characterized by a hydrogen-to-uranium-233 atom ratio in the range 10 to 200 and a uranium-233-to-thorium-232 atom ratio ranging from 0.012 to 0.200. The seed occupies from 10 to 35 percent of the core volume in the form of one or more individual islands or annuli. (NSA 26: 55130)

Beaudoin, B. R.; Cohen, J. D.; Jones, D. H.; Marier, Jr, L. J.; Raab, H. F.

1972-06-20T23:59:59.000Z

347

Fabrication procedures for manufacturing High Flux Isotope Reactor fuel elements - 2  

SciTech Connect (OSTI)

The original fabrication procedures written in 1968 delineated the manufacturing procedures at that time. Since 1968, there have been a number of procedural changes. This rewrite of the fabrication procedures incorporates these changes. The entire fuel core of this reactor is made up of two fuel elements. Each element consists of one annular array of fuel plates. These annuli are identified as the inner and outer fuel elements, since one fits inside the other. The inner element consists of 171 identical fuel plates, and the outer element contains 369 identical fuel plates differing slightly from those in the inner element. Both sets of fuel plates contain U{sub 3}O{sub 8} powder as the fuel, dispersed in an aluminum powder matrix and clad with aluminum. Procedures for manufacturing and inspection of the fuel elements are described and illustrated.

Knight, R.W.; Morin, R.A.

1999-12-01T23:59:59.000Z

348

Performance of a high efficiency advanced coal combustor. Task 2, Pilot scale combustion tests: Final report  

SciTech Connect (OSTI)

Under contract from DOE-PETC, Combustion Engineering, Inc. undertook the lead-role in a multi-task R&D program aimed at development of a new burner system for coal-based fuels; the goal was that this burner system should be capable of being retrofitted in oil- or gas-fired industrial boilers, or usable in new units. In the first phase of this program a high efficiency advanced coal combustor was designed jointly by CE and MIT. Its burner is of the multiannular design with a fixed shrouded swirler in the center immediately surrounding the atomizer gun to provide the ``primary act,`` and three further annuli for the supply of the ``secondary air.`` The degree of rotation (swirl) in the secondary air is variable. The split of the combustion air into primary and secondary air flows serves the purpose of flame stabilization and combustion staging, the latter to reduce NO{sub x} formation.

Toqan, M.A.; Paloposki, T.; Yu, T.; Teare, J.D.; Beer, J.M. [Massachusetts Inst. of Tech., Cambridge, MA (United States)

1989-12-01T23:59:59.000Z

349

Performance of a high efficiency advanced coal combustor  

SciTech Connect (OSTI)

Under contract from DOE-PETC, Combustion Engineering, Inc. undertook the lead-role in a multi-task R D program aimed at development of a new burner system for coal-based fuels; the goal was that this burner system should be capable of being retrofitted in oil- or gas-fired industrial boilers, or usable in new units. In the first phase of this program a high efficiency advanced coal combustor was designed jointly by CE and MIT. Its burner is of the multiannular design with a fixed shrouded swirler in the center immediately surrounding the atomizer gun to provide the primary act,'' and three further annuli for the supply of the secondary air.'' The degree of rotation (swirl) in the secondary air is variable. The split of the combustion air into primary and secondary air flows serves the purpose of flame stabilization and combustion staging, the latter to reduce NO{sub x} formation.

Toqan, M.A.; Paloposki, T.; Yu, T.; Teare, J.D.; Beer, J.M. (Massachusetts Inst. of Tech., Cambridge, MA (United States))

1989-12-01T23:59:59.000Z

350

EFFECTS OF LOCAL DISSIPATION PROFILES ON MAGNETIZED ACCRETION DISK SPECTRA  

SciTech Connect (OSTI)

We present spectral calculations of non-LTE accretion disk models appropriate for high-luminosity stellar mass black hole X-ray binary systems. We first use a dissipation profile based on scaling the results of shearing box simulations of Hirose et al. to a range of annuli parameters. We simultaneously scale the effective temperature, orbital frequency, and surface density with luminosity and radius according to the standard {alpha}-model. This naturally brings increased dissipation to the disk surface layers (around the photospheres) at small radii and high luminosities. We find that the local spectrum transitions directly from a modified blackbody to a saturated Compton scattering spectrum as we increase the effective temperature and orbital frequency while decreasing midplane surface density. Next, we construct annuli models based on the parameters of a L/L{sub Edd} = 0.8 disk orbiting a 6.62 solar mass black hole using two modified dissipation profiles that explicitly put more dissipation per unit mass near the disk surface. The new dissipation profiles are qualitatively similar to the one found by Hirose et al., but produce strong near power-law spectral tails. Our models also include physically motivated magnetic acceleration support based once again on scaling the Hirose et al. results. We present three full-disk spectra, each based on one of the dissipation prescriptions. Our most aggressive dissipation profile results in a disk spectrum that is in approximate quantitative agreement with certain observations of the steep power-law spectral states from some black hole X-ray binaries.

Tao, Ted [Department of Physics, St. Mary's College of Maryland, St. Mary's City, MD 20686 (United States); Blaes, Omer [Department of Physics, University of California, Santa Barbara, CA 93106 (United States)

2013-06-10T23:59:59.000Z

351

Lime pretreatment and enzymatic hydrolysis of corn stover  

E-Print Network [OSTI]

and then distributed to each column by the air-manifold having one input and 10 output fittings. Compressed nitrogen gas (Praxair Co., College Station, TX) was used to make the non-oxidative condition and supplied to each column by the N2-manifold after preheating...

Kim, Se Hoon

2005-08-29T23:59:59.000Z

352

DOI 10.1007/s00208-007-0102-6 Mathematische Annalen Topological properties of Eschenburg spaces  

E-Print Network [OSTI]

25 · 57R19 Riemannian manifolds with positive sectional curvature have been a frequent topic Eschenburg spaces Ea,b,c whicharediffeomorphictoeachother,butnotisometric.Itisgivenby(a, b, c) = (2279, 1603 such pairs. The manifolds Ea,b,c also carry a metric of positive sectional curvature, although the 3-Sasakian

Chinburg, Ted

353

Volume 37 (1998), pages 95108 DEHN FILLINGS PRODUCING REDUCIBLE  

E-Print Network [OSTI]

MANIFOLDS Ying-Qing Wu ¢¡¤£¦¥¨§¤©¤¥ If two surgeries on a hyperbolic knot produce a reducible manifold;2 YING-QING WU is the reduced graph of 2. Section 3 studies the case that each vertex of 2 has valency 6

Wu, Ying-Qing

354

Travaux mathematiques, Volume 19 (2011), 125166, c Universite du Luxembourg Berezin-Toeplitz quantization and its kernel expansion  

E-Print Network [OSTI]

of these expansions. Contents 1 Introduction 126 2 Quantization of K¨ahler manifolds 126 2.1 Bergman projections . . . . . . . . . . . . 141 2.6 Algebra of Toeplitz operators, Berezin-Toeplitz star-product . . . 145 2.7 Quantization geometric data of the manifold and prequantum bundle they found extensive and deep applications in the study

Ma, Xiaonan - Institut de Mathématiques de Jussieu, Université Paris 7

355

Information geometry and the hydrodynamical formulation of quantum mechanics  

E-Print Network [OSTI]

Let (M,g) be a compact, connected and oriented Riemannian manifold. We denote D the space of smooth probability density functions on M. In this paper, we show that the Frechet manifold D is equipped with a Riemannian metric g^{D} and an affine connection \

Molitor, Mathieu

2012-01-01T23:59:59.000Z

356

Milnor-Wood inequalities for products  

E-Print Network [OSTI]

We prove Milnor-Wood inequalities for local products of manifolds. As a consequence, we establish the generalized Chern Conjecture for products $M\\times \\Sigma^k$ for any product of a manifold $M$ with a product of $k$ copies of a surface $\\Sigma$ for $k$ sufficiently large.

Bucher, Michelle

2012-01-01T23:59:59.000Z

357

Shapes of geodesic nets. Alexander Nabutovsky and Regina Rotman  

E-Print Network [OSTI]

Shapes of geodesic nets. Alexander Nabutovsky and Regina Rotman August 14, 2006 Abstract Let M n infinitely many geometrically distinct geodesic nets on this manifold. We will also show that either the length of a shortest pe­ riodic geodesic is bounded in terms of the volume of a manifold M n

Nabutovsky, Alexander

358

Image-Set Matching using a Geodesic Distance and Cohort Normalization Yui Man Lui, J. Ross Beveridge, Bruce A. Draper  

E-Print Network [OSTI]

Image-Set Matching using a Geodesic Distance and Cohort Normalization Yui Man Lui, J. Ross are viewed as points on a Grassmann manifold, then geodesic distance on the manifold becomes the natural way-known image-set matching algorithm, Mutual Subspace Method (MSM), which does not use geodesic dis- tance

Draper, Bruce A.

359

Tutorial on Semi-Supervised Learning Xiaojin Zhu  

E-Print Network [OSTI]

is SSL? Mixture Models Co-training and Multiview Algorithms Manifold Regularization and Graph-Based Algorithms S3VMs and Entropy Regularization 2 Part II Theory of SSL Online SSL Multimanifold SSL Human SSL Outline 1 Part I What is SSL? Mixture Models Co-training and Multiview Algorithms Manifold Regularization

Zhu, Xiaojin "Jerry"

360

IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 23, NO. 3, AUGUST 2008 877 Electricity Price Curve Modeling  

E-Print Network [OSTI]

--Electricity forward curve, electricity spot price, forecasting, locational marginal price, manifold learning. IIEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 23, NO. 3, AUGUST 2008 877 Electricity Price Curve approach for the modeling and analysis of electricity price curves by ap- plying the manifold learning

Huo, Xiaoming

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


361

Convex Geometric Analysis MSRI Publications  

E-Print Network [OSTI]

. The Schatten trace class of linear mapping on the n-dimensional Euclidean space equipped with the norm p entropy of a d-dimensional manifold, we first look for an atlas, a collection of charts (Ui, i)1i the number N of charts in the atlas, we look at the Grassmann manifold in L(Rn ) with the right metric

Pajor, Alain

362

The Riemannian Potato: an automatic and adaptive artifact detection method for online experiments  

E-Print Network [OSTI]

The Riemannian Potato: an automatic and adaptive artifact detection method for online experiments manifold. Since the Riemannian metric is non-linear, this region of interest corresponds to a "potato" in the Riemannian manifold. Fig. 1 shows the potato for a dataset of 100 2x2 covariance matrices on simulated data

Paris-Sud XI, Université de

363

Construction of the noncommutative complex ball  

SciTech Connect (OSTI)

We describe the construction of the noncommutative complex ball whose commutative analog is the Hermitian symmetric space D = SU(m, 1)/U(m), with the method of coherent state quantization. In the commutative limit, we obtain the standard manifold. We also consider a quantum field theory model on the noncommutative manifold.

Wang, Zhituo, E-mail: zhituo@mat.uniroma3.it [Dipartimento di Matematica, Università di Roma Tre Largo S. L. Murialdo 1, 00146 Roma (Italy)

2014-09-15T23:59:59.000Z

364

Electrochemical device  

DOE Patents [OSTI]

A tunnel protected electrochemical device features channels fluidically communicating between manifold, tunnels and cells. The channels are designed to provide the most efficient use of auxiliary power. The channels have a greater hydraulic pressure drop and electrical resistance than the manifold. This will provide a design with the optimum auxiliary energy requirements.

Grimes, Patrick G. (Westfield, NJ); Einstein, Harry (Springfield, NJ); Bellows, Richard J. (Westfield, NJ)

1988-01-12T23:59:59.000Z

365

Clara Aldana (Nantes) "Determinants of Laplace operators on planar polygons and angular sectors"  

E-Print Network [OSTI]

sectors" Abstract: I will talk about work in progress with J. Rowlett and W. Mueller. We study on manifolds with boundary and index of symplectomorphisms on manifolds with boundary" Abstract: Let : T X \\ 0, that U is always Fredholm and set i() = i(U ). In a joint work with S. Coriasco and E. Schrohe, we

Baer, Christian

366

Clara Aldana (Nantes) Abstract: TBA  

E-Print Network [OSTI]

Program Clara Aldana (Nantes) TBA Abstract: TBA Ubertino Battisti (Torino) "Fourier integral operators on manifolds with boundary and index of symplectomorphisms on manifolds with boundary" Abstract using Egorov Theorem, that U is always Fredholm and set i() = i(U ). In a joint work with S. Coriasco

Baer, Christian

367

LAGRANGIAN EMBEDDINGS INTO SUBCRITICAL STEIN PAUL BIRAN AND KAI CIELIEBAK  

E-Print Network [OSTI]

LAGRANGIAN EMBEDDINGS INTO SUBCRITICAL STEIN MANIFOLDS PAUL BIRAN AND KAI CIELIEBAK Abstract. In this paper we obtain new topological restrictions on La- grangian embeddings into subcritical Stein manifolds of C n to the more general case of subcritical Stein mani- folds. 1. Introduction This paper is devoted

Cieliebak, Kai

368

A CANTOR SET WITH HYPERBOLIC COMPLEMENT JUAN SOUTO AND MATTHEW STOVER  

E-Print Network [OSTI]

self- homeomorphism. The first example of this phenomenon is due to Antoine [2] who constructed metric. More concretely, we prove that an open 3-manifold is hyperbolic if it admits a nested exhaustion. Following Myers [16], we say that a compact orientable 3-manifold M is excellent if it is irreducible

Souto, Juan

369

Engine Cylinder Temperature Control  

DOE Patents [OSTI]

A method and apparatus for controlling a temperature in a combustion cylinder in an internal combustion engine. The cylinder is fluidly connected to an intake manifold and an exhaust manifold. The method and apparatus includes increasing a back pressure associated with the exhaust manifold to a level sufficient to maintain a desired quantity of residual exhaust gas in the cylinder, and varying operation of an intake valve located between the intake manifold and the cylinder to an open duration sufficient to maintain a desired quantity of fresh air from the intake manifold to the cylinder, wherein controlling the quantities of residual exhaust gas and fresh air are performed to maintain the temperature in the cylinder at a desired level.

Kilkenny, Jonathan Patrick (Peoria, IL); Duffy, Kevin Patrick (Metamora, IL)

2005-09-27T23:59:59.000Z

370

Narrow groove welding gas diffuser assembly and welding torch  

DOE Patents [OSTI]

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.

Rooney, Stephen J. (East Berne, NY)

2001-01-01T23:59:59.000Z

371

Engineering the initial state in broadband population inversion  

E-Print Network [OSTI]

Quantum systems with sublevel structures prevent full population inversion from one manifold of sublevels to the other using strong ultrafast resonant pulses. In this work we explain the mechanism by which this population transfer is blocked. We then develop a novel concept of geometric control, assuming full or partial coherent manipulation within the manifolds and show that by preparing specific coherent superpositions in the initial manifold, full population inversion or full population blockade, {\\it i.e} laser-induced transparency, can be achieved. In particular, by parallel population transfer we show how population inversion between the manifolds can be obtained with minimal pulse area. As the number of sublevels increases, population inversion can overcome the pulse area theorem at the expense of full control over the initial manifold of sublevels.

Bo Y. Chang; Sheokmin Shin; Ignacio R. Sola

2015-03-03T23:59:59.000Z

372

High specific power, direct methanol fuel cell stack  

DOE Patents [OSTI]

The present invention is a fuel cell stack including at least one direct methanol fuel cell. A cathode manifold is used to convey ambient air to each fuel cell, and an anode manifold is used to convey liquid methanol fuel to each fuel cell. Tie-bolt penetrations and tie-bolts are spaced evenly around the perimeter to hold the fuel cell stack together. Each fuel cell uses two graphite-based plates. One plate includes a cathode active area that is defined by serpentine channels connecting the inlet manifold with an integral flow restrictor to the outlet manifold. The other plate includes an anode active area defined by serpentine channels connecting the inlet and outlet of the anode manifold. Located between the two plates is the fuel cell active region.

Ramsey, John C. (Los Alamos, NM); Wilson, Mahlon S. (Los Alamos, NM)

2007-05-08T23:59:59.000Z

373

Capillary interconnect device  

DOE Patents [OSTI]

A manifold for connecting external capillaries to the inlet and/or outlet ports of a microfluidic device for high pressure applications is provided. The fluid connector for coupling at least one fluid conduit to a corresponding port of a substrate that includes: (i) a manifold comprising one or more channels extending therethrough wherein each channel is at least partially threaded, (ii) one or more threaded ferrules each defining a bore extending therethrough with each ferrule supporting a fluid conduit wherein each ferrule is threaded into a channel of the manifold, (iii) a substrate having one or more ports on its upper surface wherein the substrate is positioned below the manifold so that the one or more ports is aligned with the one or more channels of the manifold, and (iv) means for applying an axial compressive force to the substrate to couple the one or more ports of the substrate to a corresponding proximal end of a fluid conduit.

Renzi, Ronald F. (Tracy, CA)

2007-12-25T23:59:59.000Z

374

A Residual Mass Ballistic Testing Method to Compare Armor Materials or Components (Residual Mass Ballistic Testing Method)  

SciTech Connect (OSTI)

A statistics based ballistic test method is presented for use when comparing multiple groups of test articles of unknown relative ballistic perforation resistance. The method is intended to be more efficient than many traditional methods for research and development testing. To establish the validity of the method, it is employed in this study to compare test groups of known relative ballistic performance. Multiple groups of test articles were perforated using consistent projectiles and impact conditions. Test groups were made of rolled homogeneous armor (RHA) plates and differed in thickness. After perforation, each residual projectile was captured behind the target and its mass was measured. The residual masses measured for each test group were analyzed to provide ballistic performance rankings with associated confidence levels. When compared to traditional V50 methods, the residual mass (RM) method was found to require fewer test events and be more tolerant of variations in impact conditions.

Benjamin Langhorst; Thomas M Lillo; Henry S Chu

2014-05-01T23:59:59.000Z

375

Unfolding-based corrector estimates for a reaction-diffusion system predicting concrete corrosion  

E-Print Network [OSTI]

We use the periodic unfolding technique to derive corrector estimates for a reaction-diffusion system describing concrete corrosion penetration in the sewer pipes. The system, defined in a periodically-perforated domain, is semi-linear, partially dissipative, and coupled via a non-linear ordinary differential equation posed on the solid-water interface at the pore level. After discussing the solvability of the pore scale model, we apply the periodic unfolding techniques (adapted to treat the presence of perforations) not only to get upscaled model equations, but also to prepare a proper framework for getting a convergence rate (corrector estimates) of the averaging procedure.

Fatima, Tasnim; Ptashnyk, Mariya

2011-01-01T23:59:59.000Z

376

Coal-feeding mechanism for a fluidized bed combustion chamber  

DOE Patents [OSTI]

The present invention is directed to a fuel-feeding mechanism for a fluidized bed combustor. In accordance with the present invention a perforated conveyor belt is utilized in place of the fixed grid normally disposed at the lower end of the fluidized bed combustion zone. The conveyor belt is fed with fuel, e.g. coal, at one end thereof so that the air passing through the perforations dislodges the coal from the belt and feeds the coal into the fluidized zone in a substantially uniform manner.

Gall, Robert L. (Morgantown, WV)

1981-01-01T23:59:59.000Z

377

Fail-safe storage rack for irradiated fuel rod assemblies  

DOE Patents [OSTI]

A fail-safe storage rack is provided for interim storage of spent but radioactive nuclear fuel rod assemblies. The rack consists of a checkerboard array of substantially square, elongate receiving tubes fully enclosed by a double walled container, the outer wall of which is imperforate for liquid containment and the inner wall of which is provided with perforations for admitting moderator liquid flow to the elongate receiving tubes, the liquid serving to take up waste heat from the stored nuclear assemblies and dissipate same to the ambient liquid reservoir. A perforated cover sealing the rack facilitates cooling liquid entry and dissipation.

Lewis, Donald R. (Pocatello, ID)

1993-01-01T23:59:59.000Z

378

Method to prevent/mitigate steam explosions in casting pits  

DOE Patents [OSTI]

Steam explosions can be prevented or mitigated during a metal casting process by the placement of a perforated flooring system in the casting pit. An upward flow of compressed gas through this perforated flooring system is introduced during the casting process to produce a buffer layer between any spilled molten metal and the cooling water in the reservoir. This buffer layer provides a hydrodynamic layer which acts to prevent or mitigate steam explosions resulting from hot, molten metal being spilled into or onto the cooling water.

Taleyarkhan, Rusi P. (Knoxville, TN)

1996-01-01T23:59:59.000Z

379

Battery venting system and method  

DOE Patents [OSTI]

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

Casale, Thomas J. (Aurora, CO); Ching, Larry K. W. (Littleton, CO); Baer, Jose T. (Gaviota, CA); Swan, David H. (Monrovia, CA)

1999-01-05T23:59:59.000Z

380

Battery Vent Mechanism And Method  

DOE Patents [OSTI]

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

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

2000-02-15T23:59:59.000Z

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


381

Battery venting system and method  

DOE Patents [OSTI]

Disclosed herein is a venting mechanism for a battery. The venting mechanism includes a battery vent structure which is located on the battery cover and may be integrally formed therewith. The venting mechanism includes an opening extending through the battery cover such that the opening communicates with a plurality of battery cells located within the battery case. The venting mechanism also includes a vent manifold which attaches to the battery vent structure. The vent manifold includes a first opening which communicates with the battery vent structure opening and second and third openings which allow the vent manifold to be connected to two separate conduits. In this manner, a plurality of batteries may be interconnected for venting purposes, thus eliminating the need to provide separate vent lines for each battery. The vent manifold may be attached to the battery vent structure by a spin-welding technique. To facilitate this technique, the vent manifold may be provided with a flange portion which fits into a corresponding groove portion on the battery vent structure. The vent manifold includes an internal chamber which is large enough to completely house a conventional battery flame arrester and overpressure safety valve. In this manner, the vent manifold, when installed, lessens the likelihood of tampering with the flame arrester and safety valve. 8 figs.

Casale, T.J.; Ching, L.K.W.; Baer, J.T.; Swan, D.H.

1999-01-05T23:59:59.000Z

382

Combustor with two stage primary fuel assembly  

DOE Patents [OSTI]

A combustor for a gas turbine having first and second passages for pre-mixing primary fuel and air supplied to a primary combustion zone. The flow of fuel to the first and second pre-mixing passages is separately regulated using a single annular fuel distribution ring having first and second row of fuel discharge ports. The interior portion of the fuel distribution ring is divided by a baffle into first and second fuel distribution manifolds and is located upstream of the inlets to the two pre-mixing passages. The annular fuel distribution ring is supplied with fuel by an annular fuel supply manifold, the interior portion of which is divided by a baffle into first and second fuel supply manifolds. A first flow of fuel is regulated by a first control valve and directed to the first fuel supply manifold, from which the fuel is distributed to first fuel supply tubes that direct it to the first fuel distribution manifold. From the first fuel distribution manifold, the first flow of fuel is distributed to the first row of fuel discharge ports, which direct it into the first pre-mixing passage. A second flow of fuel is regulated by a second control valve and directed to the second fuel supply manifold, from which the fuel is distributed to second fuel supply tubes that direct it to the second fuel distribution manifold. From the second fuel distribution manifold, the second flow of fuel is distributed to the second row of fuel discharge ports, which direct it into the second pre-mixing passage.

Sharifi, Mehran (Winter Springs, FL); Zolyomi, Wendel (Oviedo, FL); Whidden, Graydon Lane (Orlando, FL)

2000-01-01T23:59:59.000Z

383

Relativity theory in time-space  

E-Print Network [OSTI]

The concept of time-space defined in an earlier paper of the author is certain generalization of the so-called space-time. In this paper we introduce the concept of time-space manifold. In the homogeneous case, the time-space manifold is a differentiable manifold with such tangent spaces which have certain fixed time-space structure. We redefine the fundamental concepts of global relativity theory with respect to this general situation. We study the concepts of affine connection, parallel transport, curvature tensor and Einstein equation, respectively.

Ákos G. Horváth

2014-11-05T23:59:59.000Z

384

Installing a Subsurface Drip Irrigation System for Row Crops  

E-Print Network [OSTI]

. The manifold can be placed at the soil surface or buried. B-6151 7/04 Installing a Subsurface Drip Irrigation System for Row Crops Juan Enciso* *Assistant Professor and Extension Agricultural Engineer, The Texas A&M University System. Figure 1. Typical layout... of a drip irrigation system. Main Field block Flushing valve Valve Flushing manifold Water source Supplying manifold Lateral Tape injection The injector consists of a roll that holds the tape and a shank that opens the soil to bury the tape (Figs. 3...

Enciso, Juan

2004-09-07T23:59:59.000Z

385

Lamination cooling system formation method  

DOE Patents [OSTI]

An electric motor, transformer or inductor having a cooling system. A stack of laminations have apertures at least partially coincident with apertures of adjacent laminations. The apertures define straight or angled cooling-fluid passageways through the lamination stack. Gaps between the adjacent laminations are sealed by injecting a heat-cured sealant into the passageways, expelling excess sealant, and heat-curing the lamination stack. Manifold members adjoin opposite ends of the lamination stack, and each is configured with one or more cavities to act as a manifold to adjacent passageway ends. Complex manifold arrangements can create bidirectional flow in a variety of patterns.

Rippel, Wally E. (Altadena, CA); Kobayashi, Daryl M. (Monrovia, CA)

2012-06-19T23:59:59.000Z

386

Lamination cooling system formation method  

DOE Patents [OSTI]

An electric motor, transformer or inductor having a cooling system. A stack of laminations have apertures at least partially coincident with apertures of adjacent laminations. The apertures define straight or angled cooling-fluid passageways through the lamination stack. Gaps between the adjacent laminations are sealed by injecting a heat-cured sealant into the passageways, expelling excess sealant, and heat-curing the lamination stack. Manifold members adjoin opposite ends of the lamination stack, and each is configured with one or more cavities to act as a manifold to adjacent passageway ends. Complex manifold arrangements can create bidirectional flow in a variety of patterns.

Rippel, Wally E [Altadena, CA; Kobayashi, Daryl M [Monrovia, CA

2009-05-12T23:59:59.000Z

387

SimpleNPKL : Simple Non-Parametric Kernel Learning Jinfeng Zhuang ZHUA0016@NTU.EDU.SG  

E-Print Network [OSTI]

SimpleNPKL : Simple Non-Parametric Kernel Learning Jinfeng Zhuang ZHUA0016@NTU.EDU.SG Ivor W. Tsang IVORTSANG@NTU.EDU.SG Steven C.H. Hoi CHHOI@NTU.EDU.SG School of Computer Engineering, Nanyang Technological-of-the-art perfor- mance. The choice of an effective kernel plays a crucial role in many kernel based machine

Tsang Wai Hung "Ivor"

388

PACMan: Performance Aware Virtual Machine Consolidation Alan Roytman  

E-Print Network [OSTI]

introduces contention in shared resources such as the memory hierarchy, leading to degraded VM perfor- mance of server resource unused. This is wasteful. We present a system that consolidates VMs such that performance degradation is within a tunable bound while minimiz- ing unused resources. The problem of selecting the most

Hunt, Galen

389

Phase-plane visualizations of gestural structure in expressive timing  

E-Print Network [OSTI]

, and describe the construction of the phase-plane representa- tion from the time series using a functional has been one of the major topics in music perfor- mance research. As an expressive parameter, timing is used to clarify the musical structure of the piece (Clarke, 1988), among other things. Background

Widmer, Gerhard

390

Parallel Job Scheduling --A Status Report Dror G. Feitelson  

E-Print Network [OSTI]

are typically given a reservation for some future time. The use of reservations was included in several early. Thus they must either terminate before the time of the reservation (known as the "shadow time"), or use and in terms of understanding the perfor- mance results. The second part of the paper covers current usage

Feitelson, Dror

391

Previous selective dynamic compilation systems have demonstrated that dynamic compilation can achieve performance improvements  

E-Print Network [OSTI]

approaches are relatively easy for programmers to use, but are only as powerful as the optimizations system that includes more sophisti- cated and flexible analyses and transformations. DyC is able. We analyze the individual optimizations of DyC and assess their impact on perfor- mance collectively

Mock, Markus U.

392

FLUIDIZED BED COMBUSTION UNIT FOR OIL SHALE  

E-Print Network [OSTI]

A fluidized bed combustion unit has been designed and installed to study the fluidized bed combustion performance using oil shale as fuel in direct burning process. It is a steel column of 18 cm inside diameter and 130 cm height fitted with a perforated plate air distributor of 611 holes, each of 1

M. Hammad; Y. Zurigat; S. Khzai; Z. Hammad; O. Mubydeem

393

Evaluation of the Impacts of Deep Penetration of Wind Resources on Transmission Utilization and  

E-Print Network [OSTI]

Terms--wind generation, grid integration, trans- mission utilization, stability analysis, dynamic perfor- tion of wind generation resources into the power grids requires the evaluation of the impacts of wind quantification of the impacts of wind resource integration on the system. The evaluation of these impacts

Gross, George

394

Energy Impact of Secure Computation on a Handheld Device Zhiyuan Li  

E-Print Network [OSTI]

Energy Impact of Secure Computation on a Handheld Device Zhiyuan Li Rong Xu Department of Computer is an important approach to save the energy consumption while improving perfor- mance for wireless networked. In this paper, we measure the energy con- sumption characteristics of multimedia applications on a handheld

Li, Zhiyuan

395

Energy Impact of Secure Computation on a Handheld Device # Zhiyuan Li + Rong Xu  

E-Print Network [OSTI]

and mobile computing. Many architectural and software e#orts have been initiated to improve the energy eEnergy Impact of Secure Computation on a Handheld Device # Zhiyuan Li + Rong Xu Department#oading is an important approach to save the energy consumption while improving perfor­ mance for wireless networked

Li, Zhiyuan

396

This is an author-deposited version published in: http://oatao.univ-toulouse.fr/ Eprints ID: 6770  

E-Print Network [OSTI]

This is an author-deposited version published in: http://oatao.univ-toulouse.fr/ Eprints ID: 6770, the residual velocity and thus the loss of kinetic energy of the projec- tile. After impact, the residual and residual deformation and without perforation. Targets are mostly AA5086-H111 aluminum thin plates (from 2

Mailhes, Corinne

397

Journal of Grid Computing 1: 329343, 2003. 2004 Kluwer Academic Publishers. Printed in the Netherlands.  

E-Print Network [OSTI]

Journal of Grid Computing 1: 329­343, 2003. © 2004 Kluwer Academic Publishers. Printed on the order of the 1 Gbit/s and have often have tight delay deadlines for delivery to remote systems or low-delay requirements. High Energy Physics, Radio Astronomy or High Perfor- mance Steered Simulations cannot achieve

Bhatti, Saleem N.

398

Performance of Inverted Indices in Shared-Nothing Distributed Text Document Information Retrieval SystemsPublished in PDIS '93  

E-Print Network [OSTI]

Performance of Inverted Indices in Shared-Nothing Distributed Text Document Information Retrieval document re- trieval systems is strongly in uenced by the organization of the inverted index. This paper compares the perfor- mance impact on query processing of various physical organizations for inverted lists

Zimmerman, John

399

Alert: An Adaptive Low-Latency Event-Driven MAC Protocol for Wireless Sensor Networks  

E-Print Network [OSTI]

- ing MAC protocols are optimized to conserve energy, trad- ing off latency, throughput and other of sensor nodes with minimum latency and without requir- ing any cooperation or pre-scheduling among the application demands better perfor- mance at the expense of some additional energy. If latency

Namboodiri, Vinod

400

Reliability Tradeoffs in Personal Storage Systems John A. Chandy  

E-Print Network [OSTI]

Reliability Tradeoffs in Personal Storage Systems John A. Chandy john.chandy@uconn.edu Sumit ABSTRACT RAID has long been established as an effective way to provide highly reliable disk subsystems. However, reliability in RAID sys- tems comes at the cost of extra disks and somewhat lower perfor- mance

Chandy, John A.

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


401

A performance evaluation of an automotive magnetorheological brake design with a sliding mode controller  

E-Print Network [OSTI]

industries due to its potential to improve vehicle perfor- mance, safety and cost. The ``x'' in x Engineering, University of Victoria, 3800 Finnerty Road, P.O. Box 3055 STN CSC, Victoria, BC, Canada V8W 3P6 flow and heat transfer analysis. The performance of the MRB in a vehicle was studied using a quarter

Park, Edward

402

Powerhouses Insidethe2010Sydney  

E-Print Network [OSTI]

Gallery, Dublin, Ireland, 2008; Rapid-prototyped 3D typography designed using custom generative computer and sustain ­ guide our PerforManCe and our interaCtions with eaCh other, with students, our Partners'll be happy to know that U: has been printed on "Nordset" produced by Nordland Papier, a company certified

University of Technology, Sydney

403

Heat exchanger support apparatus in a fluidized bed  

DOE Patents [OSTI]

A heat exchanger is mounted in the upper portion of a fluidized combusting bed for the control of the temperature of the bed. A support, made up of tubes, is extended from the perforated plate of the fluidized bed up to the heat exchanger. The tubular support framework for the heat exchanger has liquid circulated therethrough to prevent deterioration of the support.

Lawton, Carl W. (West Hartford, CT)

1982-01-01T23:59:59.000Z

404

A General Version of the Triple Operator Richard Emilion,1,  

E-Print Network [OSTI]

, Pointe-`a-Pitre, Guadeloupe, France 3 LAAS-CNRS Toulouse, France Recent developments of sensors be applied to a solar radiation data stream. This may lead to further works on data fusion and on similar advances have popularized the use of outstanding perfor- mance sensors and measuring instruments, which

Emilion, Richard

405

Expressive Re-Performance Laurel S. Pardue  

E-Print Network [OSTI]

. There are two major components to perfor- mance: the technical requirement of correctly playing the notes, and the emotional content conveyed through expressivity. While technical details like pitch and note order instrument with which the user steps-through a recording. Data generated from the users actions is parsed

406

Alkylation of Phenol: A Mechanistic View Qisheng Ma, Deb Chakraborty, Francesco Faglioni, Rick P. Muller, and  

E-Print Network [OSTI]

imparts improved perfor- mance properties to the class of metallic detergents used in lubricating oils as additives in gasoline, lubricants, and as hosts of consumer products. For instance, the p-alkylphenol isomer industries as drilling oil additives, antioxidants, and polymer stabilizers.1 Both homogeneous

Goddard III, William A.

407

To link to this article: DOI:10.1016/j.pecs.2012.04.004 URL : http://dx.doi.org/10.1016/j.pecs.2012.04.004  

E-Print Network [OSTI]

. Specific issues linked to real gas turbine chambers are discussed: multi-perforation, complex acoustic flames in gas turbine combustion chambers. (2012) Progress in Energy and Combustion Science, vol. 38 (n turbine combustion chambers L.Y.M. Gicquel*, G. Staffelbach, T. Poinsot CERFACS, 42 Avenue G. Coriolis

Mailhes, Corinne

408

Fractionation apparatus providing improved heat recovery from bottom stream  

SciTech Connect (OSTI)

An energy efficient design of fractionation column in which the liquid at the column bottom must be cooled to prevent thermal degradation, the column being provided with a perforated annular baffle through which liquid from the lowermost tray is channeled to the outlet of the column bottom, while a body of cooler recycled liquid is maintained in the column bottom outside of said baffle.

Farnham, R.A.

1981-10-20T23:59:59.000Z

409

Bipolar battery with array of sealed cells  

DOE Patents [OSTI]

A lithium alloy/metal sulfide battery as a dipolar battery is disclosed with an array of stacked cells with the anode and cathode electrode materials in each cell sealed in a confining structure and separated from one another except across separator material interposed therebetween. The separator material is contained in a module having separate perforated metallic sheets that sandwich opposite sides of the separator material for the cell and an annular insulating spacer that surrounds the separator material beyond the perforations and is also sandwiched between and sealed to the sheets. The peripheral edges of the sheets project outwardly beyond the spacer, traverse the side edges of the adjacent electrode material to form cup-like electrode holders, and are fused to the adjacent current collector or end face members of the array. Electrolyte is infused into the electrolyte cavity through the perforations of one of the metallic sheets with the perforations also functioning to allow ionic conductance across the separator material between the adjacent electrodes. A gas-tight housing provides an enclosure of the array.

Kaun, Thomas D. (New Lenox, IL); Smaga, John A. (Lemont, IL)

1987-01-01T23:59:59.000Z

410

Empirical modeling and simulation of edgewater cusping and coning  

E-Print Network [OSTI]

the perforation of the producing well, excessive water production leads to increased cost. In the case when no provision is made, it represents a significant liability. The case considered here is a well producing from a monocline with an edge-water aquifer...

Ayeni, Kolawole Babajide

2008-10-10T23:59:59.000Z

411

Energy-E cient Design of Battery-Powered Embedded Systems  

E-Print Network [OSTI]

decoder software to run in real time on the SmartBadge with low energy consumption. Perfor- mance increase of 92% and energy consumption decrease of 77% over the original executable speci cation have been. Introduction Energy consumption is a critical factor in system-level de- sign of embedded portable appliances

Simunic, Tajana

412

Withdrawn FIPS Listed by Number Updated 10/22/12  

E-Print Network [OSTI]

the American National Standards Institute (ANSI), U.S. private-sector standards organizations, government for Information Interchange, Its Representations, Subsets, and Extensions (ANSI X3.4- 1986/R1992, X3.32- 1990, X3.41- 1990) 84 Nov 14 97 Jul 29 62FR/40502 2-1 Perforated Tape Code for Information Interchange (ANSI X3

413

Impact of Communication Erasure Channels on Safety of Highway Vehicle Platoons  

E-Print Network [OSTI]

such an impact. By autonomous inter-vehicle coordination, a platoon can potentially enhance safety, improve1 Impact of Communication Erasure Channels on Safety of Highway Vehicle Platoons Lijian Xu, Member perfor- mance significantly. This paper employs safety of highway vehicle platoons as a platform to study

Zhang, Hongwei

414

Portrait de la mobilit, des investissements et de l'offre de transport  

E-Print Network [OSTI]

transport collectif le plus performant en Amérique du Nord. Une perfor- mance qui s'appuiera sur une visant à réduire l'utilisation de l'auto solo, cette stra- tégie permettra d'augmenter de 40 % l

Charette, André

415

Task Scheduling for Control Oriented Requirements for Cyber-Physical Systems Fumin Zhang, Klementyna Szwaykowska, Wayne Wolf, and Vincent Mooney  

E-Print Network [OSTI]

Institute of Technology Atlanta, GA, 30332 Email: {fumin, klimka, wolf, mooney}@gatech.edu Abstract The wide applications of cyber-physical systems (CPS) call for effective design strategies that optimize the perfor- mance of both computing units and physical plants. We study the task scheduling problem for a class

Mooney, Vincent

416

Estimation of Photovoltaic System Reliability and Performance Metrics  

E-Print Network [OSTI]

1 Estimation of Photovoltaic System Reliability and Performance Metrics Sairaj V. Dhople, Student reliability and perfor- mance analysis of grid-tied photovoltaic (PV) systems is for- mulated using Markov and energy yield, and reliability metrics such as availability. The paper also provides an analytical method

Liberzon, Daniel

417

TERRA news .........................2 Environmental grants ............3  

E-Print Network [OSTI]

Cooperative Highway Research Program (NCHRP). While many state DOTs have used perfor- mance measurement their orga- nizations to a higher level of performance management. Opening the event were Robert Johns, CTS said that community transpor- tation has traditionally operated "under the radar," but must work

Minnesota, University of

418

Plans for US Contributions to ITER U.S. ITER Plans for US Contributions to ITER  

E-Print Network [OSTI]

windings 75% cooling for divertor, vacuum vessel, ... 20% blanket/shield pellet injector tokamak exhaust supplies #12;Plans for US Contributions to ITER U.S. ITER Plans for US Contributions to ITER December 4 Exploring: - Seam-less tube conduit - Perforated central cooling tube #12;Plans for US Contributions to ITER

419

Document Assignment in Multi-site Search Engines Ulf Brefeld  

E-Print Network [OSTI]

Document Assignment in Multi-site Search Engines Ulf Brefeld Yahoo! Research Barcelona, Spain to sites is critical for the perfor- mance of multi-site Web search engines. In such settings, sites crawl General Terms Design, Performance, Experimentation Keywords Multi-site web search engines, document

Brefeld, Ulf

420

Service Portability Why http redirect is the model for the future  

E-Print Network [OSTI]

address of sally@company.com will be de- livered to a mail server controlled by company.com, and if Sally moves to a new company there is no way for this email address to follow her there. Second, despite years. Search services do an amazing job with web pages, but for other services they perfor

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


421

RED Revisited Tuan Anh Trinh and Sandor Molnar  

E-Print Network [OSTI]

RED Revisited Tuan Anh Trinh and S´andor Moln´ar High Speed Networks Laboratory Department- ternet is RED. However, research results on RED perfor- mance are highly mixed, especially in the field of tuning its parameters. In this paper, we revisit some features in RED and study them in greater details

Molnár, Sándor

422

RED Revisited Tuan Anh Trinh and Sandor Molnar  

E-Print Network [OSTI]

RED Revisited Tuan Anh Trinh and Sâ??andor Molnâ??ar High Speed Networks Laboratory Department­ ternet is RED. However, research results on RED perfor­ mance are highly mixed, especially in the field of tuning its parameters. In this paper, we revisit some features in RED and study them in greater details

Molnár, Sándor

423

Corium protection assembly  

DOE Patents [OSTI]

A corium protection assembly includes a perforated base grid disposed below a pressure vessel containing a nuclear reactor core and spaced vertically above a containment vessel floor to define a sump therebetween. A plurality of layers of protective blocks are disposed on the grid for protecting the containment vessel floor from the corium.

Gou, Perng-Fei (Saratoga, CA); Townsend, Harold E. (Campbell, CA); Barbanti, Giancarlo (Sirtori, IT)

1994-01-01T23:59:59.000Z

424

Evaluation of Viewport Size and Curvature of Large, High-Resolution Displays  

E-Print Network [OSTI]

of geospatial tasks that may be used in aerial imagery compari- son and analysis. One of the reasons for using in better user performance. We compared user perfor- mance time, accuracy, and mental workload on geospatial, viewport size, curvature, geospatial ACM Classification Keywords H.5.2 [User Interfaces] Ergonomics

Ball, Robert

425

A Hybrid Solid-State Storage Architecture for the Performance, Energy Consumption, and Lifetime Improvement  

E-Print Network [OSTI]

A Hybrid Solid-State Storage Architecture for the Performance, Energy Consumption, and Lifetime-place updating so that it significantly im- proves the usage efficiency of log pages by eliminating out- of results show that our proposed methods can substantially improve the perfor- mance, energy consumption

Giles, C. Lee

426

Adult hippocampal neurogenesis and its role in cognition  

E-Print Network [OSTI]

 was  shown  to  enhance  retention  of  LTP  in  the  DG  for  up  to  2  weeks127.  Others  found  that  in  vivo,  reduced  AHN  through  irradiation  lowered  responsiveness  of  perforant...  suggested  that  AHN  may  contribute  to  these  functions  in  some  way.  This  idea  was  supported  by  the  finding  that  memory  demand  correlated  with  AHN  in  birds9  and  that  in  rats...

Oomen, Charlotte\tA.; Bekinschtein, Pedro; Kent, Brianne A.; Saksida, Lisa\tM.; Bussey, Timothy J.

2014-07-17T23:59:59.000Z

427

Ozone decomposing filter  

DOE Patents [OSTI]

In an improved ozone decomposing air filter carbon fibers are held together with a carbonized binder in a perforated structure. The structure is made by combining rayon fibers with gelatin, forming the mixture in a mold, freeze-drying, and vacuum baking.

Simandl, Ronald F. (Farragut, TN); Brown, John D. (Harriman, TN); Whinnery, Jr., LeRoy L. (Dublin, CA)

1999-01-01T23:59:59.000Z

428

A Novel Architecture Using the Decorrelating Transform for Low Power Adaptive Filters  

E-Print Network [OSTI]

A Novel Architecture Using the Decorrelating Transform for Low Power Adaptive Filters Mark P for low power, high perfor- mance electronic components has been prompted by the popularity of portable.P.Tennant@sms.ed.ac.uk Abstract This paper presents a novel architecture using the decorrelating (DECOR) transformation technique

Arslan, Tughrul

429

small when considering the overall experimental period: those observed during early growth were compensated for during the finishing period.  

E-Print Network [OSTI]

of lucerne meal (12 %) as a partial protein supplementation led to good growth perfor- mances during without lucerne meal. In the case of diets containing 15 per cent protein and supplemented with lysine L.) for the growing pig. Two wrinkled varieties (LmvcoLrr and FxoGEL) and three smooth ones (STnxcov

Boyer, Edmond

430

INTER-NOISE 2006 3-6 DECEMBER 2006  

E-Print Network [OSTI]

-tenancy floor with impact sound insulation perfor- mance at least as good as a concrete slab. Typical light, since LTF buildings are quicker and cheaper to construct than an equivalent in concrete. However metal rails by vibration- isolating clips, and porous sound-absorbing material in the cavities formed

Fox, Colin

431

Performance Analysis of Space Diversity Steerable Beam Smart Antenna  

E-Print Network [OSTI]

.in Abstract-We analyze the throughput, delay and energy efficiency perfor- mance of space diversityslotted an energy ef- ficientversion of S-ALOHA which uses a beam sensed backoff algorithmat the userterminal. We increase battery life in wirelessuser terminals. Keywords-Space diver& small antennas, S-ALOHA.energy

Chockalingam, A.

432

Energy Consumption of Minimum Energy Coding in  

E-Print Network [OSTI]

Energy Consumption of Minimum Energy Coding in CDMA Wireless Sensor Networks Benigno Zurita Ares://www.ee.kth.se/control Abstract. A theoretical framework is proposed for accurate perfor- mance analysis of minimum energy coding energy consumption is analyzed for two coding schemes proposed in the literature: Minimum Energy coding

Johansson, Karl Henrik

433

Performance Analysis of Coded V-BLAST with Optimum Power and Rate Allocation  

E-Print Network [OSTI]

propagation effect, a number of efforts have been reported to improve the perfor- mance of the uncoded V-BLASTPerformance Analysis of Coded V-BLAST with Optimum Power and Rate Allocation Victoria Kostina in the coded V-BLAST are studied analytically. Outage probabilities and system capacities of these strategies

Loyka, Sergey

434

ORIGINAL PAPER Effects of nutritional status on metabolic rate, exercise  

E-Print Network [OSTI]

-Verlag 2009 Abstract The influence of feeding on swimming perfor- mance and exercise recovery in fish is poorly understood. Examining swimming behavior and physiological status following periods of feeding for swimming performance and physiological recovery. Rest- ing metabolic rates were also determined. Fasted

Suski, Cory David

435

Crash resistant container  

DOE Patents [OSTI]

A container for hazardous materials capable of protecting the enclosed materials from high speed impact is disclosed. Energy absorption is provided by a multiplicity of crushable layers of either wire mesh or perforated metal sheets which thin and flow together under impact loading. Layers of a higher tensile strength material are interspersed within the crushable layers to confine them and increase performance. 1 fig.

Pierce, J.D.

1994-08-16T23:59:59.000Z

436

Manufacturing Thomas W. Eagar, Guest Editor  

E-Print Network [OSTI]

Materials Manufacturing Thomas W. Eagar, Guest Editor The bt·h.n-ior of succl'ssful manufac- tunn;imos., t·m·ironment for mate- nab manufacturing changes, so too does our ml·a~un· ol matt·rials performance~·(·vt·r. as shown by Figure 1, there are sen·ral additional dimensions to perfor- mann·. In particular, successful

Eagar, Thomas W.

437

Beating the maximum cooling limit with graded thermoelectric materials Zhixi Bian and Ali Shakouria  

E-Print Network [OSTI]

.1063/1.2396895 The maximum cooling temperature is one of the perfor- mance parameters for a thermoelectric module. ExcludingBeating the maximum cooling limit with graded thermoelectric materials Zhixi Bian and Ali Shakouria cooling of a single element thermoelectric material cannot be improved by changing its geometry.3

438

Appears in the proceedings of the Annual International Symposium on Computer Architecture (ISCA-31)  

E-Print Network [OSTI]

-Madison {alaa, david}@cs.wisc.edu Abstract Modern processors use two or more levels of cache memories to bridge Semiconductor technology trends and microarchitec- tural innovations continue to exacerbate the perfor- mance gap between processors and memory. The ITRS Roadmap [16]--the semiconductor industry's detailed

Wood, David A.

439

A new report delivers MSHP performance data for use in whole-building simulation tools.  

E-Print Network [OSTI]

-split heat pumps (MSHPs) are highly efficient refrigerant-based air conditioning and heating systems perfor- mance varies is critical in order to reasonably estimate annual energy consumption of a MSHP systems are also provided. Potential Impact Annual energy savings and better indoor comfort can

440

2010 AEG Outstanding Student Professional Paper KEVIN T. MININGER  

E-Print Network [OSTI]

School of Mines, 1516 Illinois Street, Golden, CO 80401 RICHARD D. SHORT Slope Reinforcement Technology by lowering the groundwater table. Horizontal wick drains represent a new technique that has proven by drilling a hole, angled slightly upward, into the slope and then installing a perforated steel pipe

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


441

High temperature liquid level sensor  

DOE Patents [OSTI]

A length of metal sheathed metal oxide cable is perforated to permit liquid access to the insulation about a pair of conductors spaced close to one another. Changes in resistance across the conductors will be a function of liquid level, since the wetted insulation will have greater electrical conductivity than that of the dry insulation above the liquid elevation.

Tokarz, Richard D. (West Richland, WA)

1983-01-01T23:59:59.000Z

442

Towards a Conceptual Model of a Bio-Robotic AUV: Pectoral Fin Hydrodynamics  

E-Print Network [OSTI]

of these technological problems whereas the FY03 ONR MURI program (Integrated Artificial Mus- cle, High-Lift Bio of marine mammals systems (MMS), specifically dolphins. The key technological advances required in order to reach this goal are: 1) An engineered sonar system that matches the perfor- mance of MMS. 2) An AUV

Mittal, Rajat

443

High-performance Si microwire photovoltaics Michael D. Kelzenberg,a  

E-Print Network [OSTI]

High-performance Si microwire photovoltaics Michael D. Kelzenberg,a Daniel B. Turner-Evans,a Morgan for low- cost, thin-film photovoltaics. Here, we demonstrate VLS-grown Si microwires that have suitable electrical properties for high-perfor- mance photovoltaic applications, including long minority

Atwater, Harry

444

Cu2ZnSnS4 nanocrystals and graphene quantum dots for photovoltaics Xukai Xinab  

E-Print Network [OSTI]

Cu2ZnSnS4 nanocrystals and graphene quantum dots for photovoltaics Jun Wang,a Xukai Xinab advances in the synthesis and utilization of CZTS nanocrystals and colloidal GQDs for photovoltaics emerged to achieve low cost, high perfor- mance photovoltaics, including organic solar cells,2­6 dye

Lin, Zhiqun

445

Satisfying Real-Time Constraints with Custom Instructions panyu@comp.nus.edu.sg  

E-Print Network [OSTI]

have become popular as they strike the right balance between challenging perfor- mance requirement to lists, requires prior specific permission and/or a fee. CODES+ISSS'05, Sept. 19­21, 2005, Jersey City instructions help simple embedded processors achieve con- siderable performance and energy efficiency

Mitra, Tulika

446

Enabling Performance Intelligence for Application Adaptation in the Future Internet  

E-Print Network [OSTI]

plat- form. Achieving autonomicity in the Future Internet will require a performance architecture that such "Future Internet Perfor- mance Architecture" (FIPA), and present our reference implementation of FIPA in virtualization [1] technology at end-hosts and core network switches/routers. The Global Envir

Calyam, Prasad

447

Transient Analysis of Proton Electrolyte Membrane Fuel Cells (PEMFC) at Start-Up  

E-Print Network [OSTI]

Transient Analysis of Proton Electrolyte Membrane Fuel Cells (PEMFC) at Start-Up and Failure M. F perfor- mance of the fuel cell has already been reported, when inter- digitated flow fields are used [1 with experiments to study the effect of temperature, humidity, and pressure on fuel cell performance

Yanikoglu, Berrin

448

preprint; submitted to Physical Review Letters in November 2003 Dipole moment of a Pb-O vacancy pair in PbTiO3  

E-Print Network [OSTI]

preprint; submitted to Physical Review Letters in November 2003 Dipole moment of a Pb-O vacancy-8520 The polarization of a nearest neighbor (nn) Pb-O vacancy pair ((VP b - VO)nn) in PbTiO3 is calculated, using and perfor- mance of these materials are expected to be strongly af- fected by defects such as lead vacancies

Burton, Benjamin P.

449

Less harm, less worry or how to improve network security by bounding system offensiveness  

E-Print Network [OSTI]

been developed (i.e., firewalls, intrusion detection systems, anti- virus, access control systems, etc. Measurements of the implemented prototype show that controlling the outgoing traffic does not affect perfor- mance at the sender machine, when traffic is not hostile. If traffic is hostile, the limited slow down

Cavallaro, Lorenzo

450

JOURNAL DE PHYSIQUE Colloque C5, supplment a u n08, Tome 46, aoDt 1985 page C5-101  

E-Print Network [OSTI]

-Cook ,Lindholm et Bodner-Partom dans le code de calcul HEMP, les paramètres des lois pour chaque matériau sont- Cook, Lindholm and Bodner-Partom into the HEMP code. The material constants of the three constitutive, explicite aux différences finies, HEMP [Il. Compte tenu du type de sollicitations (impact, perforation

Paris-Sud XI, Université de

451

Multistage-Based Switching Fabrics for Scalable Routers  

E-Print Network [OSTI]

with distributed packet routing to achieve high scalability and low costs. Our fabrics are based on a multistage patterns are evaluated and discussed as well. Being scalable and of low costs, the proposed switching their arrival LCs toward their destined LCs. Switching fabrics naturally affect overall router perfor- mance

Tzeng, Nian-Feng

452

A Performance Counter Based Workload Characterization on Blue Gene/P  

E-Print Network [OSTI]

A Performance Counter Based Workload Characterization on Blue Gene/P Karthik Ganesan Lizy John V--IBM's Blue Gene/P, the second generation of the Blue Gene supercomputer is designed with a Universal Perfor instrument applications and get a profound insight into its execution on the Blue Gene/P system which could

John, Lizy Kurian

453

S t a t eEngineeringEngineeringThe Magazine of the Penn State College of Engineering Summer 2000 Engineering ConferencesModern Protective Structures  

E-Print Network [OSTI]

participants to recognize and correct conditions causing plant operational or upset problems. Electric Power fundamental background information on potential threats and relate it to the perfor- mance and latest design, this workshop presents a biological approach to the operation of wastewater treatment plants and teaches

Yener, Aylin

454

Catalytic Reactor For Oxidizing Mercury Vapor  

DOE Patents [OSTI]

A catalytic reactor (10) for oxidizing elemental mercury contained in flue gas is provided. The catalyst reactor (10) comprises within a flue gas conduit a perforated corona discharge plate (30a, b) having a plurality of through openings (33) and a plurality of projecting corona discharge electrodes (31); a perforated electrode plate (40a, b, c) having a plurality of through openings (43) axially aligned with the through openings (33) of the perforated corona discharge plate (30a, b) displaced from and opposing the tips of the corona discharge electrodes (31); and a catalyst member (60a, b, c, d) overlaying that face of the perforated electrode plate (40a, b, c) opposing the tips of the corona discharge electrodes (31). A uniformly distributed corona discharge plasma (1000) is intermittently generated between the plurality of corona discharge electrode tips (31) and the catalyst member (60a, b, c, d) when a stream of flue gas is passed through the conduit. During those periods when corona discharge (1000) is not being generated, the catalyst molecules of the catalyst member (60a, b, c, d) adsorb mercury vapor contained in the passing flue gas. During those periods when corona discharge (1000) is being generated, ions and active radicals contained in the generated corona discharge plasma (1000) desorb the mercury from the catalyst molecules of the catalyst member (60a, b, c, d), oxidizing the mercury in virtually simultaneous manner. The desorption process regenerates and activates the catalyst member molecules.

Helfritch, Dennis J. (Baltimore, MD)

1998-07-28T23:59:59.000Z

455

This is an author-deposited version published in: http://oatao.univ-toulouse.fr/ Eprints ID: 8855  

E-Print Network [OSTI]

an aircraft composite fuselage structure manufactured by the Liquid Resin Infusion (LRI) process and subjected to a compressive load. LRI is based on the moulding of high perfor- mance composite parts by infusing liquid resin of a panel manufactured by a resin infusion process [8]. Numerical models consider the failure initiation any

Mailhes, Corinne

456

Oil & Gas Science and Technology --Rev. IFP Energies nouvelles Copyright 2010 IFPEN Energies nouvelles  

E-Print Network [OSTI]

Oil & Gas Science and Technology -- Rev. IFP Energies nouvelles Copyright © 2010 IFPEN Energies to an effective thermal management system and to maintain safety, perfor- #12;2 Oil & Gas Science and Technology of Michigan, Ann Arbor, Michigan, 48109 - USA 2 U.S. Army Tank Automotive Research, Development

Stefanopoulou, Anna

457

Convective flow of refrigerant (R-123) across a bank of micro pin fins Ali Kosar, Yoav Peles *  

E-Print Network [OSTI]

, and pressure drop of R-123 over a bank of shrouded micro pin fins 243 lm long with hydraulic diameter of 99 in diverse applications [1,5,12,14] to augment systems' thermal-hydraulic and chemical perfor- mance studied in the context of turbine blade cooling. Nusselt number and friction factor correlations

Peles, Yoav

458

Multitaper Array Processing Kathleen E. Wage  

E-Print Network [OSTI]

Multitaper Array Processing Kathleen E. Wage November 2007 Proceedings of the 41st Asilomar has fewer time snapshots to work with, and the result is often substantial degradation in perfor of reasons, including source and/or receiver motion, environmental fluctuations, and transient excitation

Wage, Kathleen

459

A COMPLETE SYSTEM FOR POLYPS FLAGGING IN VIRTUAL COLONOSCOPY  

E-Print Network [OSTI]

both the information in the candidate polyp location and its immediate surrounding area. The proposed by Kim et. al [5], where about 3000 patients went through OC Marcelo Fiori and Pablo Mus, USA. and another 3000 through VC, seven perforations occurred in the OC while none were recorded

460

Effect of Porosity on the Stiffness of Cast Steel RICHARD A. HARDIN and CHRISTOPH BECKERMANN  

E-Print Network [OSTI]

the location, amount, and size characteristics of micro- and macroporosity, an integrated design process service perfor- mance.[2] It is anticipated that such a design process will guide and improve inspection in cast metal due to porosity or inclusions are not considered directly in part design. Instead, ad

Beckermann, Christoph

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


461

N d'ordre : 8763 THSE DE DOCTORAT  

E-Print Network [OSTI]

the air supply system of a fuel cell vehicle with on-board fuel reformer. It is necessary to state and the perfor- mances of an electrical fuel cell vehicle, and that the complexity increases when the storage of high-pressure compressed hydrogen is substituted in the vehicle by the on-board production of reformed

Boyer, Edmond

462

A comparison of statistical learning approaches for engine torque estimation  

E-Print Network [OSTI]

of the -insensitive norm in SVMs regularization weight factor engine speed (rotation/min) IC internal combustion: for example, automatically setting gears, optimizing engine perfor- mance, reducing emissions and designingA comparison of statistical learning approaches for engine torque estimation A. Rakotomamonjy1 , R

Paris-Sud XI, Université de

463

Hector Garcaa-Molrna Kenneth Salem  

E-Print Network [OSTI]

To alleviate these problems we propose the notion of a saga A LLT 1s a saga if it can be written as a sequence, LLTs present serious perfor- mance problems Since they are transactions, the system must execute them likely to conflict with an LLT than with a shorter transac- tion Furthermore, the transaction abort rate

Myers, Andrew C.

464

A Simulation Model for the Performance Evaluation for Migrating a Legacy Paulo Pinheiro da Silva  

E-Print Network [OSTI]

A Simulation Model for the Performance Evaluation for Migrating a Legacy System Paulo Pinheiro da a simulation model using CAPPLES. Peculiarities of the legacy system migration that affects the simulation of perfor- mance evaluation during migration. CAPPLES is based on simulation models. Indeed, analytical

Pinheiro da Silva, Paulo

465

FIDUCIAL POINTS EXTRACTION AND CHARACTERISTIC WAVES DETECTION IN ECG SIGNAL USING A MODEL-BASED BAYESIAN FRAMEWORK  

E-Print Network [OSTI]

FIDUCIAL POINTS EXTRACTION AND CHARACTERISTIC WAVES DETECTION IN ECG SIGNAL USING A MODEL.Jutten@inpg.fr ABSTRACT The automatic detection of Electrocardiogram (ECG) waves is important to cardiac disease diagnosis. A good perfor- mance of an automatic ECG analyzing system depends heav- ily upon the accurate

Paris-Sud XI, Université de

466

Endovascular Treatment of Spontaneous Isolated Dissecting Aneurysm of the Superior Mesenteric Artery Using Stent-Assisted Coil Embolization  

SciTech Connect (OSTI)

Spontaneous isolated dissecting aneurysm of the main trunk of the superior mesenteric artery is a rare condition. We treated a patient with this condition successfully by stent-assisted coil embolization. Intravascular stent placement may widen the indications for endovascular coiling of the aneurysmal false lumen to avoid perforation.

Ozaki, Toshiro [Graduate School of Medical and Dental Sciences, Niigata University, Department of Radiation Oncology (Japan)], E-mail: tochi@med.niigata-u.ac.jp; Kimura, Motomasa [School of Health Sciences, Faculty of Medicine, Niigata University, Department of Radiological Technology (Japan); Yoshimura, Norihiko; Hori, Yoshiro; Takano, Toru; Kamura, Takesi; Yamamoto, Satoshi; Sasai, Keisuke [Graduate School of Medical and Dental Sciences, Niigata University, Department of Radiation Oncology (Japan)

2006-06-15T23:59:59.000Z

467

Macrophage-Mediated Endothelial Inflammatory Responses to Airborne Particulates: Impact of  

E-Print Network [OSTI]

-Fe/F-Al-Si). We have used these particulates, as well as coal fly ash (CFA) and diesel exhaust particulates (DEP remain unresolved. Using a microporous aluminosilicate zeolite Y as a manifold, we have synthesized 1 µm

Dutta, Prabir K.

468

Microfluidic microarray systems and methods thereof  

DOE Patents [OSTI]

Disclosed are systems that include a manifold in fluid communication with a microfluidic chip having a microarray, an illuminator, and a detector in optical communication with the microarray. Methods for using these systems for biological detection are also disclosed.

West, Jay A. A. (Castro Valley, CA); Hukari, Kyle W. (San Ramon, CA); Hux, Gary A. (Tracy, CA)

2009-04-28T23:59:59.000Z

469

The architectural details of Alvaro Siza : a chorology  

E-Print Network [OSTI]

A chorology is an analysis of the relationships between the constituent parts of a system or assemblage. Architecture is not only the result of the connection between a vast set of components and their manifold interactions, ...

Rohrbacher, Gary P. (Gary Pickard), 1964-

1998-01-01T23:59:59.000Z

470

Fuel Requirements for HCCI Engine Operation  

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

(CAD) Intake Manifold Temp. (C) Diesel, 14 CR 20%, 14 CR 40%, 14 CR 60%, 14 CR 80%, 14 CR Gasoline, 16 CR Naphtha, 14 CR Naphtha, 16 CR l All Fuels Advanced SOR Compared to Diesel...

471

Timelike reduction and T-duality  

E-Print Network [OSTI]

In the light of recent developments in Superstring Theory, it has become of interest to study Kaluza-Klein dimensional reduction of supergravities not only on spatial manifolds, but also on the time direction. We study a particularly relevant class...

Scuro, Sante Rodolfo

2012-06-07T23:59:59.000Z

472

A quadrature formula for diffusion polynomials corresponding to a generalized heat kernel  

E-Print Network [OSTI]

be used to construct a local coordinate atlas on manifolds, preserving the order of magnitude of the distances between points within each chart. Several applications, especially in the context of semi

Mhaskar, Hrushikesh Narhar

473

Control of Charge Dilution in Turbocharged Diesel Engines via Exhaust Valve Timing  

E-Print Network [OSTI]

Compression Ignition (HCCI) engines high level of EGR can be used to indirectly control combustion initiation and HCCI engines [7, 10]. Conventional external EGR (eEGR), relies on a pressure drop from exhaust manifold

Stefanopoulou, Anna

474

Control method for turbocharged diesel engines having exhaust gas recirculation  

DOE Patents [OSTI]

A method of controlling the airflow into a compression ignition engine having an EGR and a VGT. The control strategy includes the steps of generating desired EGR and VGT turbine mass flow rates as a function of the desired and measured compressor mass airflow values and exhaust manifold pressure values. The desired compressor mass airflow and exhaust manifold pressure values are generated as a function of the operator-requested fueling rate and engine speed. The EGR and VGT turbine mass flow rates are then inverted to corresponding EGR and VGT actuator positions to achieve the desired compressor mass airflow rate and exhaust manifold pressure. The control strategy also includes a method of estimating the intake manifold pressure used in generating the EGR valve and VGT turbine positions.

Kolmanovsky, Ilya V. (Ypsilanti, MI); Jankovic, Mrdjan J (Birmingham, MI); Jankovic, Miroslava (Birmingham, MI)

2000-03-14T23:59:59.000Z

475

Scott Lillard1 , Frank Gac2  

E-Print Network [OSTI]

to the proton beam at the Los Alamos Neutron Science Center. The water system that supplied the manifold/blanket cooling loops present a unique combination of parameters that may effect the corrosion rates of metals

476

CX-006720: Categorical Exclusion Determination | Department of...  

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

off site. A backhoe will be used to dig up the manifold piping, after all possible fluids have been sucked out. Wells 88-AX-28, 17 -STX-27 and 18-STX-27 will be tied directly...

477

CX-006708: Categorical Exclusion Determination | Department of...  

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

the site. A backhoe will be used to dig up the manifold piping, after all possible fluids have been sucked out of the piping. We will tie wells 88-AX-28, 17-STX-27 and...

478

adaptive metric knn: Topics by E-print Network  

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

We also prove that the set of points where a path with values in a metric space Maleva, Olga 97 SOBOLEV METRICS ON THE MANIFOLD OF ALL RIEMANNIAN METRICS Mathematics Websites...

479

Smooth structures, the gluing lemma, straightening corners, surgery, and handles  

E-Print Network [OSTI]

Structures Let M be a topological manifold. A smooth structure on M is a maximal smooth atlas. A smooth atlas. Claim: (M, ), the surgery on , and (M, ), the trace of the surgery on , have "canonical" smooth

Davis, James F.

480

Mean curvature flow self-shrinkers with genus and asymptotically conical ends  

E-Print Network [OSTI]

This doctoral dissertation is on the theory of Minimal Surfaces and of singularities in Mean Curvature Flow, for smooth submanifolds Y" in an ambient Riemannian (n+ 1)-manifold Nn+1, including: (1) New asymptotically conical ...

Møller, Niels Martin

2012-01-01T23:59:59.000Z

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


481

Alessandro Chiuso Department of Information Engineering -University of Padova  

E-Print Network [OSTI]

theory; nonlinear filtering; statistical inference on manifolds; Monte carlo filtering; hybrid system Research Office DAAH0445 e DAAD19-99-1-0139 e NSF IIS-9876145 (PI prof. Stefano Soatto) -Italian Space

Schenato, Luca

482

Spectroscopic signatures of doorway-mediated intersystem crossing  

E-Print Network [OSTI]

Intersystem crossing in acetylene, C?H?, is described by a doorway-mediated model, where singlet-triplet mixing between the first excited singlet~ state, S?, and the manifold of low-lying T?,? states is controlled by special ...

Bittinger, Kyle Lee

2009-01-01T23:59:59.000Z

483

Max-Planck-Institut f ur Mathematik  

E-Print Network [OSTI]

and Global Information Geometry by Nihat Ay and Wilderich Tuschmann Preprint no.: 24 2002 #12; #12; DUALLY FLAT MANIFOLDS AND GLOBAL INFORMATION GEOMETRY Nihat Ay and Wilderich Tuschmann February 26, 2002

484

fur Mathematik in den Naturwissenschaften  

E-Print Network [OSTI]

and Global Information Geometry by Nihat Ay and Wilderich Tuschmann Preprint no.: 24 2002 #12;#12;DUALLY FLAT MANIFOLDS AND GLOBAL INFORMATION GEOMETRY Nihat Ay and Wilderich Tuschmann February 26, 2002 Abstract

485

CF8C PLus: A New Cast Stainless Steel for High-Temperature Diesel...  

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

engine * Cast stainless upgrade for SiMo cast-iron diesel engine exhaust components turbo-housing exhaust manifold C-15, 14.6L HD On- Highway Diesel Engine Materials Need: High...

486

Cummins/ORNL-FEERC CRADA: NOx Control & Measurement Technology...  

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

@ 80% Cylinder-Resolved H 2 O Measurements Sample in pipe between exhaust manifold and turbo 11 Managed by UT-Battelle for the Department of Energy Cycle-integrated value (ppm x...

487

Effects of secondary air injection during cold start of SI engines  

E-Print Network [OSTI]

The paucity of exhaust oxygen during cold start of automobile SI engines limits the extent of exothermic chemical reactions in the exhaust port, manifold, and catalyst. The injection of air into the exhaust system therefore ...

Lee, Dongkun

2010-01-01T23:59:59.000Z

488

Geometric quantization and dynamical constructions on the space of Kähler metrics  

E-Print Network [OSTI]

This Thesis is concerned with the study of the geometry and structure of the space of Kihler metrics representing a fixed cohomology class on a compact Kähler manifold. The first part of the Thesis is concerned with a ...

Rubinstein, Yanir Akiva

2008-01-01T23:59:59.000Z

489

Characterization of wastewater subsurface drip emitters and design approaches concerning system application uniformity  

E-Print Network [OSTI]

applications showed low application uniformities, which was reflected in overloading of the field near the supply manifold while low emitter discharge rates occurred at the end of lateral. Designers are seeking appropriate operation pressures and drip zone...

Duan, Xiaojing

2009-06-02T23:59:59.000Z

490

A Symplectic Prolegomenon  

E-Print Network [OSTI]

A symplectic manifold gives rise to a triangulated A?-category, the derived Fukaya category, which encodes information on Lagrangian submanifolds and dynamics as probed by Floer cohomology. This survey aims to give some insight into what the Fukaya...

Smith, Ivan

2014-01-01T23:59:59.000Z

491

Microalgae Cultivation using Offshore Membrane Enclosures for Growing Algae (OMEGA)  

E-Print Network [OSTI]

cam-lock fittings to a U-shaped PVC manifold. The six swirlinsereted inside transparent PVC tubes with union-style endschedule 40 polyvinyl chloride (PVC) collar (O.D. 11.4 cm ×

Wiley, Patrick Edward

2013-01-01T23:59:59.000Z

492

Clarke subgradients for directionally Lipschitzian stratifiable functions  

E-Print Network [OSTI]

Lemma 3.5 (Frechét accessibility) Consider a closed set Q ? R n, a C2-manifold M ? Q, and a point ¯x ? M. Recall that the inclusion ˆNQ(¯x) ? NM (¯x) holds.

Megiddo

2012-11-14T23:59:59.000Z

493

On the Lefschetz coincidence theorem  

SciTech Connect (OSTI)

The Lefschetz number is constructed for two maps of noncompact nonorientable topological manifolds of the same dimension; it is proved that if it is nonzero, then there is a coincidence point of these maps. Bibliography: 15 titles.

Artamonov, Dmitrii V [M. V. Lomonosov Moscow State University, Faculty of Mechanics and Mathematics, Moscow (Russian Federation)

2009-08-31T23:59:59.000Z

494

Experimental and Computational Study of a Scaled Reactor Cavity Cooling System  

E-Print Network [OSTI]

............................................................................................... 40 V.5 Panel-to-Vessel Distance ....................................................................................... 42 V.6 Water Tank Scaling ............................................................................................... 44....4 Manifolds ...................................................................................................... 54 VI.2 Water Tank Design and Elevation ....................................................................... 56 VI.3 Primary Structure...

Vaghetto, Rodolfo

2013-11-25T23:59:59.000Z

495

A discrete curvature on a planar graph  

E-Print Network [OSTI]

Given a planar graph derived from a spherical, euclidean or hyperbolic tessellation, one can define a discrete curvature by combinatorial properties, which after embedding the graph in a compact 2d-manifold, becomes the Gaussian curvature.

M. Lorente

2004-12-20T23:59:59.000Z

496

Symplectic cohomology and duality for the wrapped Fukaya Category  

E-Print Network [OSTI]

Consider the wrapped Fukaya category W of a collection of exact Lagrangians in a Liouville manifold. Under a non-degeneracy condition implying the existence of enough Lagrangians, we show that natural geometric maps from ...

Ganatra, Sheel (Sheel Chandrakant)

2012-01-01T23:59:59.000Z

497

Dep  

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

pump that requires oil may be used, but precautions must be taken to prevent diffusion of oil vapors back to the manifold. Precautions may include the use of a molecular sieve and...

498

Engineering to Control Noise, Loading, and Optimal Operating Points  

SciTech Connect (OSTI)

Successful engineering of low-energy nuclear systems requires control of noise, loading, and optimum operating point (OOP) manifolds. The latter result from the biphasic system response of low-energy nuclear reaction (LENR)/cold fusion systems, and their ash production rate, to input electrical power. Knowledge of the optimal operating point manifold can improve the reproducibility and efficacy of these systems in several ways. Improved control of noise, loading, and peak production rates is available through the study, and use, of OOP manifolds. Engineering of systems toward the OOP-manifold drive-point peak may, with inclusion of geometric factors, permit more accurate uniform determinations of the calibrated activity of these materials/systems.

Mitchell R. Swartz

2000-11-12T23:59:59.000Z

499

DEGREES OF MAPS BETWEEN GRASSMANN PARAMESWARAN SANKARAN AND SWAGATA SARKAR  

E-Print Network [OSTI]

DEGREES OF MAPS BETWEEN GRASSMANN MANIFOLDS PARAMESWARAN SANKARAN AND SWAGATA SARKAR Abstract:Let f AND S. SARKAR Theorem 1.3, simply-connectedness of the complex Grassmann man- ifold will be used

Sankaran, Parameswaran

500

TGF-?/HA complex promotes tympanic membrane keratinocyte migration and proliferation via ErbB1 receptor  

SciTech Connect (OSTI)

Tympanic membrane perforations are common and represent a management challenge to clinicians. Current treatments for chronic perforations involve a graft surgery and require general anaesthesia, including associated costs and morbidities. Bioactive molecules (e.g. growth factors, cytokines) play an important role in promoting TM wound healing following perforation and the use of growth factors as a topical treatment for tympanic membrane perforations has been suggested as an alternative to surgery. However, the choice of bioactive molecules best suited to promote wound healing has yet to be identified. We investigated the effects of hyaluronic acid, vitronectin, TGF-?, IL-24 and their combinations on migration, proliferation and adhesion of cultured human tympanic membrane-derived keratinocytes (hTM), in addition to their possible mechanisms of action. We found that TGF-?, TGF-?/HA and TGF-?/IL-24 promoted wound healing by significantly increasing both migration and proliferation. TGF-? and/or HA treated cells showed comparable cell–cell adhesion whilst maintaining an epithelial cell phenotype. With the use of receptor binding inhibitors for ErbB1 (AG1478) and CD44 (BRIC235), we revealed that the activation of ErbB1 is required for TGF-?/HA-mediated migration and proliferation. These results suggest factors that may be incorporated into a tissue-engineered membrane or directly as topical treatment for tympanic membrane perforations and hence reduce the need for a surgery. - Highlights: ? TGF-?, TGF-?/HA and TGF-?/IL-24 improved hTM keratinocyte migration and proliferation. ? TGF-? and/or HA maintained epithelial cell phenotype. ? TGF-?/HA-mediated migration and proliferation requires activation of ErbB1 receptor.

Mei Teh, Bing, E-mail: bing.teh@earscience.org.au [Ear Sciences Centre, School of Surgery, The University of Western Australia, Nedlands, WA (Australia); Ear Science Institute Australia, Subiaco, WA (Australia); Department of Otolaryngology, Head, Neck and Skull Base Surgery, Sir Charles Gairdner Hospital, Nedlands, WA (Australia); Redmond, Sharon L. [Ear Sciences Centre, School of Surgery, The University of Western Australia, Nedlands, WA (Australia); Ear Science Institute Australia, Subiaco, WA (Australia); Shen, Yi [Ear Sciences Centre, School of Surgery, The University of Western Australia, Nedlands, WA (Australia); Ear Science Institute Australia, Subiaco, WA (Australia); Department of Otolaryngology, Head and Neck, Ningbo Lihuili Hospital (Ningbo Medical Centre), Ningbo, Zhejiang (China); Atlas, Marcus D. [Ear Sciences Centre, School of Surgery, The University of Western Australia, Nedlands, WA (Australia); Ear Science Institute Australia, Subiaco, WA (Australia); Department of Otolaryngology, Head, Neck and Skull Base Surgery, Sir Charles Gairdner Hospital, Nedlands, WA (Australia); Marano, Robert J.; Dilley, Rodney J. [Ear Sciences Centre, School of Surgery, The University of Western Australia, Nedlands, WA (Australia); Ear Science Institute Australia, Subiaco, WA (Australia)

2013-04-01T23:59:59.000Z