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1

Practical Analysis of materials with depth varying compositions using FT-IR photoacoustic spectroscopy (PAS)  

SciTech Connect (OSTI)

FT-IR photoacoustic spectroscopy (PAS) is discussed as a nondestructive method to probe the molecular composition of materials versus depth on the basis of the analysis of layers of experimentally controllable thickness, which are measured from the sample surface to depths of some tens of micrometers, depending on optical and thermal properties. Computational methods are described to process photoacoustic amplitude and phase spectra for both semi-quantitative and quantitative depth analyses. These methods are demonstrated on layered and gradient samples.

J.F. McClelland; R.W. Jones; Siquan Luo

2004-09-30T23:59:59.000Z

2

Sandia National Laboratories: SWiFT Operations  

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

Operations SWiFT Operations wind-turbines The DOESNL SWiFT facility has three research-scale variable-speed variable-pitch modified wind turbines with full power conversion and an...

3

Sandia National Laboratories: Ft. Devens  

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 MayAtmosphericNuclear Security Administration the1 -theErik Spoerke SSLS Exhibit at Explora MuseumFloatingFront Edge Technology Inc.Ft.

4

UK FT PDU Facility Draft EA  

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

Process Development Unit Facility February 2014 The facility is sized as a small-scale pilot CBTL plant that would produce research quantities of FT liquid fuels at...

5

Effects of cavern depth on surface subsidence and storage loss of oil-filled caverns  

SciTech Connect (OSTI)

Finite element analyses of oil-filled caverns were performed to investigate the effects of cavern depth on surface subsidence and storage loss, a primary performance criteria of SPR caverns. The finite element model used for this study was axisymmetric, approximating an infinite array of caverns spaced at 750 ft. The stratigraphy and cavern size were held constant while the cavern depth was varied between 1500 ft and 3000 ft in 500 ft increments. Thirty year simulations, the design life of the typical SPR cavern, were performed with boundary conditions modeling the oil pressure head applied to the cavern lining. A depth dependent temperature gradient of 0.012{degrees}F/ft was also applied to the model. The calculations were performed using ABAQUS, a general purpose of finite element analysis code. The user-defined subroutine option in ABAQUS was used to enter an elastic secondary creep model which includes temperature dependence. The calculations demonstrated that surface subsidence and storage loss rates increase with increasing depth. At lower depths the difference between the lithostatic stress and the oil pressure is greater. Thus, the effective stresses are greater, resulting in higher creep rates. Furthermore, at greater depths the cavern temperatures are higher which also produce higher creep rates. Together, these factors result in faster closure of the cavern. At the end of the 30 year simulations, a 1500 ft-deep cavern exhibited 4 percent storage loss and 4 ft of subsidence while a 3000 ft-deep cavern exhibited 33 percent storage loss and 44 ft of subsidence. The calculations also demonstrated that surface subsidence is directly related to the amount of storage loss. Deeper caverns exhibit more subsidence because the caverns exhibit more storage loss. However, for a given amount of storage loss, nearly the same magnitude of surface subsidence was exhibited, independent of cavern depth.

Hoffman, E.L.

1992-01-01T23:59:59.000Z

6

Turbine airfoil with outer wall thickness indicators  

DOE Patents [OSTI]

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

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

2013-08-06T23:59:59.000Z

7

Table S1. Fuel Properties. JP-8 Blend-1 FT-1 Blend-2 FT-2  

E-Print Network [OSTI]

58 45 51 H Content (% mass) 13.6 14.5 15.5 14.3 15.1 Heat of Combust. (MJ/kg) 43.3 43.8 44.4 43.8 441 Table S1. Fuel Properties. JP-8 Blend-1 FT-1 Blend-2 FT-2 Feedstock Petroleum Petroleum & Natural Gas Natural Gas Petroleum & Coal Coal Sulfur (ppm by mass) 1148 699 19 658 22 Alkanes (% vol.) 50

Meskhidze, Nicholas

8

Natural Disaster Survey Report Ft. Smith and Van Buren, Arkansas,  

E-Print Network [OSTI]

and conversations with volunteer amateur radio operators, members of the print and broadcast media in Ft. Smith to the U.S. Congress, to local government officials in Ft. Smith and Van Buren, and to the media on May 21Natural Disaster Survey Report Ft. Smith and Van Buren, Arkansas, Tornado of April 21, 1996 U

9

U.S. Army- Ft. Carson, Colorado  

Broader source: Energy.gov [DOE]

Fort Carson U.S. Army Base is located south of Colorado Springs, Colorado. It was the first Federal facility to install a "solar wall"—a solar ventilation air preheating system. The solar wall heats Ft. Carson's new high-bay aviation maintenance facility at Butts Army Airfield by pre-warming air as much as 54°F and supplying the heated air to the building's central heating system. This collector system is especially advantageous for buildings that require large volumes of heated air.

10

FT Solutions LLC | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address:011-DNA Jump37. It isInformationexplainsEnvironmental Assessments and Related| OpenFT

11

Drilling/producing depths; Two records and a revision  

SciTech Connect (OSTI)

This paper reports that record depths for natural gas or oil well drilling or producing continue to be rare occurrences, although one or two still come in each year. Records fell in Texas Railroad Commission (RRC) District 9 and in the California area of the Minerals Management Service (MMS) Pacific Outer Continental Shelf (OCS) in 1990. Deep drilling and production has traditionally been defined as well depths greater than 15,000 ft. Smith Tool reported that 9.4% of all active rotary rigs were dedicated to targets below 15,000 ft at the beginning of 1991. Deep rigs had dropped to 8.1% by year-end 1991, but remained above the 1989 and 1990 levels of 8.4 and 7.6%, respectively. In 1988 about 11% of active rigs were drilling deep at any given time.

Not Available

1992-02-01T23:59:59.000Z

12

Coherent radar ice thickness measurements over the Greenland ice sheet  

E-Print Network [OSTI]

We developed two 150-MHz coherent radar depth sounders for ice thickness measurements over the Greenland ice sheet. We developed one of these using connectorized components and the other using radio frequency integrated circuits (RFICs). Both...

Gogineni, S. Prasad; Tammana, Dilip; Braaten, David A.; Leuschen, C.; Legarsky, J.; Kanagaratnam, P.; Stiles, J.; Allen, C.; Jezek, K.; Akins, T.

2001-12-27T23:59:59.000Z

13

Thick film hydrogen sensor  

DOE Patents [OSTI]

A thick film hydrogen sensor element includes an essentially inert, electrically-insulating substrate having deposited thereon a thick film metallization forming at least two resistors. The metallization is a sintered composition of Pd and a sinterable binder such as glass frit. An essentially inert, electrically insulating, hydrogen impermeable passivation layer covers at least one of the resistors.

Hoffheins, Barbara S. (Knoxville, TN); Lauf, Robert J. (Oak Ridge, TN)

1995-01-01T23:59:59.000Z

14

ISV FACT SHEET SINGLE ENSUITE: 198 sq.ft.  

E-Print Network [OSTI]

ISV FACT SHEET SINGLE ENSUITE: 198 sq.ft. STANDARD ROOM: (NO AIRCOND, NO WATER HEATER, FREE WIFI): RM 590 PER MONTH PER BED PREMIER ROOM: : (AIRCOND WITH WATER HEATER, FREE WIFI) : RM740 PER MONTH PER BED TWIN SHARING: 283 sq.ft. STANDARD ROOM: (NO AIRCOND, NO WATER HEATER, FREE WIFI): RM 490 PER MONTH

Southampton, University of

15

$f(T)$ Theories and Varying Fine Structure Constant  

E-Print Network [OSTI]

In analogy to $f(R)$ theory, recently $f(T)$ theory has been proposed to drive the current accelerated expansion without invoking dark energy. In the literature, the observational constraints on $f(T)$ theories were obtained mainly by using the cosmological data, such as type Ia supernovae (SNIa), baryon acoustic oscillation (BAO), and cosmic microwave background radiation (CMB). In this work, we instead try to constrain $f(T)$ theories with the varying fine structure "constant", $\\alpha\\equiv e^2/\\hbar c$. We find that the constraints on $f(T)$ theories from the observational $\\Delta\\alpha/\\alpha$ data are very severe. In fact, they make $f(T)$ theories almost indistinguishable from $\\Lambda$CDM model.

Wei, Hao; Qi, Hao-Yu

2011-01-01T23:59:59.000Z

16

Spherically symmetric static spacetimes in vacuum f(T) gravity  

SciTech Connect (OSTI)

We show that Schwarzschild geometry remains as a vacuum solution for those four-dimensional f(T) gravitational theories behaving as ultraviolet deformations of general relativity. In the gentler context of three-dimensional gravity, we also find that the infrared-deformed f(T) gravities, like the ones used to describe the late cosmic speed up of the Universe, have as the circularly symmetric vacuum solution a Deser-de Sitter or a Banados, Teitelboim and Zanelli-like spacetime with an effective cosmological constant depending on the infrared scale present in the function f(T).

Ferraro, Rafael [Instituto de Astronomia y Fisica del Espacio, Casilla de Correo 67, Sucursal 28, 1428 Buenos Aires (Argentina); Departamento de Fisica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellon I, 1428 Buenos Aires (Argentina); Fiorini, Franco [Instituto de Astronomia y Fisica del Espacio, Casilla de Correo 67, Sucursal 28, 1428 Buenos Aires (Argentina)

2011-10-15T23:59:59.000Z

17

Variable depth core sampler  

DOE Patents [OSTI]

A variable depth core sampler apparatus is described comprising a first circular hole saw member, having longitudinal sections that collapses to form a point and capture a sample, and a second circular hole saw member residing inside said first hole saw member to support the longitudinal sections of said first hole saw member and prevent them from collapsing to form a point. The second hole saw member may be raised and lowered inside said first hole saw member. 7 figs.

Bourgeois, P.M.; Reger, R.J.

1996-02-20T23:59:59.000Z

18

Transition redshift in $f(T)$ cosmology and observational constraints  

E-Print Network [OSTI]

We extract constraints on the transition redshift $z_{tr}$, determining the onset of cosmic acceleration, predicted by an effective cosmographic construction, in the framework of $f(T)$ gravity. In particular, employing cosmography we obtain bounds on the viable $f(T)$ forms and their derivatives. Since this procedure is model independent, as long as the scalar curvature is fixed, we are able to determine intervals for $z_{tr}$. In this way we guarantee that the Solar-System constraints are preserved and moreover we extract bounds on the transition time and the free parameters of the scenario. We find that the transition redshifts predicted by $f(T)$ cosmology, although compatible with the standard $\\Lambda$CDM predictions, are slightly smaller. Finally, in order to obtain observational constraints on $f(T)$ cosmology, we perform a Monte Carlo fitting using supernova data, involving the most recent union 2.1 data set.

Capozziello, Salvatore; Saridakis, Emmanuel N

2015-01-01T23:59:59.000Z

19

Ft Scott Community College Transfer Program to University of Kansas  

E-Print Network [OSTI]

461 Probability & Statistics (Computer Engineering & Electrical Engineering)) 3 No Equivalent BASIC & Computer Science (Computer Engineering, Computer Science, Electrical Engineering, Information TechnologyFt Scott Community College Transfer Program to University of Kansas B.S. Electrical Engineering

20

Application of Printed Circuit Board Technology to FT-ICR MS...  

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

to FT-ICR MS Analyzer Cell Construction and Prototyping. Abstract: Although Fourier transform ion cyclotron resonance mass spectrometry (FT-ICRMS) remains themass spectrometry...

Note: This page contains sample records for the topic "thickness ft depth" 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

Advanced Mass Calibration and Visualization for FT-ICR Mass Spectromet...  

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

for FT-ICR Mass Spectrometry Imaging. Abstract: Mass spectrometry imaging by Fourier transform ion cyclotron resonance (FT-ICR) yields hundreds of unique peaks, many of which...

22

Refining thick subcategory theorems.  

E-Print Network [OSTI]

We use a $K$-theory recipe of Thomason to obtain classifications of triangulated subcategories via refining some standard thick subcategory theorems. We apply this recipe to the full subcategories of finite objects in the derived categories of rings and the stable homotopy category of spectra. This gives, in the derived categories, a complete classification of the triangulated subcategories of perfect complexes over some commutative rings. In the stable homotoy category of spectra we obtain only a partial classification of the triangulated subcategories of the finite $p$-local spectra. We use this partial classification to study the lattice of triangulated subcategories. This study gives some new evidence to a conjecture of Adams that the thick subcategory $\\C_2$ can be generated by iterated cofiberings of the Smith-Toda complex. We also discuss several consequences of these classification theorems.

Sunil K. Chebolu.

23

IN-DEPTH REPORT: Environmental  

E-Print Network [OSTI]

in local policy debates about fracking. This In-depth Report from Science for Environment Policy explores

24

Cosmological viability conditions for f(T) dark energy models  

SciTech Connect (OSTI)

Recently f(T) modified teleparallel gravity where T is the torsion scalar has been proposed as the natural gravitational alternative for dark energy. We perform a detailed dynamical analysis of these models and find conditions for the cosmological viability of f(T) dark energy models as geometrical constraints on the derivatives of these models. We show that in the phase space exists two cosmologically viable trajectory which (i) The universe would start from an unstable radiation point, then pass a saddle standard matter point which is followed by accelerated expansion de sitter point. (ii) The universe starts from a saddle radiation epoch, then falls onto the stable matter era and the system can not evolve to the dark energy dominated epoch. Finally, for a number of f(T) dark energy models were proposed in the more literature, the viability conditions are investigated.

Setare, M.R.; Mohammadipour, N., E-mail: rezakord@ipm.ir, E-mail: N.Mohammadipour@uok.ac.ir [Department of Science, University of Kurdistan, Sanandaj (Iran, Islamic Republic of)

2012-11-01T23:59:59.000Z

25

Cosmological viability conditions for $f(T)$ dark energy models  

E-Print Network [OSTI]

Recently $f(T)$ modified teleparallel gravity where T is the torsion scalar has been proposed as the natural gravitational alternative for dark energy. We perform a detailed dynamical analysis of these models and find conditions for the cosmological viability of $f(T)$ dark energy models as geometrical constraints on the derivatives of these models. We show that in the phase space exists two cosmologically viable trajectory which (i) The universe would start from an unstable radiation point, then pass a saddle standard matter point which is followed by accelerated expansion de sitter point. (ii) The universe starts from a saddle radiation epoch, then falls onto the stable matter era and the system can not evolve to the dark energy dominated epoch. Finally, for a number of $f(T)$ dark energy models were proposed in the more literature, the viability conditions are investigated.

M. R. Setare; N. Mohammadipour

2012-11-06T23:59:59.000Z

26

Radioactive waste disposal in thick unsaturated zones  

SciTech Connect (OSTI)

Portions of the Great Basin are undergoing crustal extension and have unsaturated zones as much as 600 meters thick. These areas contain multiple natural barriers capable of isolating solidified toxic wastes from the biosphere for tens of thousands to perhaps hundreds of thousands of years. An example of the potential utilization of such arid zone environments for toxic waste isolation is the burial of transuranic radioactive wastes at relatively shallow depths (15 to 100 meters) in Sedan Crater, Yucca Flat, Nevada. The volume of this man-made crater is several times that of the projected volume of such wastes to the year 2000. Disposal in Sedan Crater could be accomplished at a savings on the order of $0.5 billion, in comparison with current schemes for burial of such wastes in mined repositories at depths of 600 to 900 meters, and with an apparently equal likelihood of waste isolation from the biosphere. 4 figures.

Winograd, I.J.

1981-06-26T23:59:59.000Z

27

Generalized second law of thermodynamics in f(T) gravity  

SciTech Connect (OSTI)

We investigate the validity of the generalized second law (GSL) of gravitational thermodynamics in the framework of f(T) modified teleparallel gravity. We consider a spatially flat FRW universe containing only the pressureless matter. The boundary of the universe is assumed to be enclosed by the Hubble horizon. For two viable f(T) models containing f(T) = T+?{sub 1}((?T)){sup n} and f(T) = T??{sub 2}T(1?e{sup ?T{sub 0}/T}), we first calculate the effective equation of state and deceleration parameters. Then, (we investigate the null and strong energy conditions and conclude that a sudden future singularity appears in both models. Furthermore, using a cosmographic analysis we check the viability of two models. Finally, we examine the validity of the GSL and find that for both models it) is satisfied from the early times to the present epoch. But in the future, the GSL is violated for the special ranges of the torsion scalar T.

Karami, K.; Abdolmaleki, A., E-mail: KKarami@uok.ac.ir, E-mail: AAbdolmaleki@uok.ac.ir [Department of Physics, University of Kurdistan, Pasdaran St., Sanandaj (Iran, Islamic Republic of)

2012-04-01T23:59:59.000Z

28

HydraNet-FT: network support for dependable servors  

E-Print Network [OSTI]

Net-FT infrastructure consists of two components: host servers and redirecting. Host servers are hosts that are specially equipped to act as servers for replicated and fault-tolerant services. The location of the host servers is known to the redirecting, specially...

Shenoy, Gurudatt

1999-01-01T23:59:59.000Z

29

High-resolution SIMS depth profiling of nanolayers.  

SciTech Connect (OSTI)

Although the fundamental physical limits for depth resolution of secondary ion mass spectrometry are well understood in theory, the experimental work to achieve and demonstrate them is still ongoing. We report results of high-resolution TOF SIMS (time-of-flight secondary ion mass spectrometry) depth profiling experiments on a nanolayered structure, a stack of 16 alternating MgO and ZnO {approx}5.5 nm layers grown on a Si substrate by atomic layer deposition. The measurements were performed using a newly developed approach implementing a low-energy direct current normally incident Ar{sup +} ion beam for ion milling (250 eV and 500 eV energy), in combination with a pulsed 5 keV Ar{sup +} ion beam at 60{sup o} incidence for TOF SIMS analysis. By this optimized arrangement, a noticeably improved version of the dual-beam (DB) approach to TOF SIMS depth profiling is introduced, which can be dubbed gentleDB. The mixing-roughness-information model was applied to detailed analysis of experimental results. It revealed that the gentleDB approach allows ultimate depth resolution by confining the ion beam mixing length to about two monolayers. This corresponds to the escape depth of secondary ions, the fundamental depth resolution limitation in SIMS. Other parameters deduced from the measured depth profiles indicated that a single layer thickness is equal to 6 nm so that the 'flat' layer thickness d is 3 nm and the interfacial roughness {sigma} is 1.5 nm, thus yielding d + 2{sigma} = 6 nm. We have demonstrated that gentleDB TOF SIMS depth profiling with noble gas ion beams is capable of revealing the structural features of a stack of nanolayers, resolving its original surface and estimating the roughness of interlayer interfaces, information which is difficult to obtain by traditional approaches.

Baryshev, S. V.; Zinovev, A. V.; Tripa, C. E.; Pellin, M. J.; Peng, Q.; Elam, J. W.; Veryovkin, I. V. (Energy Systems); ( MSD)

2012-10-15T23:59:59.000Z

30

Anisotropic Compact Stars in $f(T)$ Gravity  

E-Print Network [OSTI]

This paper deals with the theoretical modeling of anisotropic compact stars in the framework of $f(T)$ theory of gravity, where $T$ is torsion scalar. To this end, we have used the exact solutions of Krori and Barua metric to a static spherically symmetric metric. The unknown constants involved in the Krori and Barua metric have been specified by using the masses and radii of compact stars 4$U$1820-30, Her X-1, SAX J 1808-3658. The physical properties of these stars have been analyzed in the framework of $f(T)$ theory. In this setting, we have checked the anisotropic behavior, regularity conditions, stability and surface redshift of the compact stars.

Abbas, G; Zubair, M

2015-01-01T23:59:59.000Z

31

Anisotropic Compact Stars in $f(T)$ Gravity  

E-Print Network [OSTI]

This paper deals with the theoretical modeling of anisotropic compact stars in the framework of $f(T)$ theory of gravity, where $T$ is torsion scalar. To this end, we have used the exact solutions of Krori and Barua metric to a static spherically symmetric metric. The unknown constants involved in the Krori and Barua metric have been specified by using the masses and radii of compact stars 4$U$1820-30, Her X-1, SAX J 1808-3658. The physical properties of these stars have been analyzed in the framework of $f(T)$ theory. In this setting, we have checked the anisotropic behavior, regularity conditions, stability and surface redshift of the compact stars.

G. Abbas; Afshan Kanwal; M. Zubair

2015-01-22T23:59:59.000Z

32

5 Hz Catalytic Emissions FT-IR Monitoring during Lean-Rich Engine...  

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

Hz Catalytic Emissions FT-IR Monitoring during Lean-Rich Engine Cycles: Comparison to Reference Methods 5 Hz Catalytic Emissions FT-IR Monitoring during Lean-Rich Engine Cycles:...

33

High Mass Accuracy and High Mass Resolving Power FT-ICR Secondary...  

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

High Mass Accuracy and High Mass Resolving Power FT-ICR Secondary Ion Mass Spectrometry for Biological Tissue Imaging. High Mass Accuracy and High Mass Resolving Power FT-ICR...

34

Ft Bidwell Space Heating Low Temperature Geothermal Facility | Open Energy  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to: navigation, search Equivalent URIFrontier, North Dakota: EnergyInformation Ft

35

Can f(T) gravity theories mimic ?CDM cosmic history  

SciTech Connect (OSTI)

Recently the teleparallel Lagrangian density described by the torsion scalar T has been extended to a function of T. The f(T) modified teleparallel gravity has been proposed as the natural gravitational alternative for dark energy to explain the late time acceleration of the universe. In order to reconstruct the function f(T) by demanding a background ?CDM cosmology we assume that, (i) the background cosmic history provided by the flat ?CDM (the radiation ere with ?{sub eff} = (1/3), matter and de Sitter eras with ?{sub eff} = 0 and ?{sub eff} = ?1, respectively) (ii) the radiation dominate in the radiation era with ?{sub 0r} = 1 and the matter dominate during the matter phases when ?{sub 0m} = 1. We find the cosmological dynamical system which can obey the ?CDM cosmic history. In each era, we find a critical lines that, the radiation dominated and the matter dominated are one points of them in the radiation and matter phases, respectively. Also, we drive the cosmologically viability condition for these models. We investigate the stability condition with respect to the homogeneous scalar perturbations in each era and we obtain the stability conditions for the fixed points in each eras. Finally, we reconstruct the function f(T) which mimics cosmic expansion history.

Setare, M.R.; Mohammadipour, N., E-mail: rezakord@ipm.ir, E-mail: N.Mohammadipour@uok.ac.ir [Department of Science, University of Kurdistan, Sanandaj (Iran, Islamic Republic of)

2013-01-01T23:59:59.000Z

36

Mapping Indigenous Depth of Place  

E-Print Network [OSTI]

AMERICAN INDIAN CULTURE AND RESEARCH JOURNAL 32:3 (2008) 107–126 107 Mapping Indigenous Depth of Place MARGARET WICKENS PEARCE AND RENEE PUALANI LOUIS INTRODUCTION Indigenous communities have successfully used Western geospatial technolo- gies (GT... of geog- raphy at Ohio University in Athens, Ohio. Renee Pualani Louis is Hawaiian and recently completed her doctorate in geography at the University of Hawai‘i at MaŻnoa, Honolulu, Hawai‘i. Published as M. Pearce and R. Louis. Mapping Indigenous depth...

Pearce, Margaret Wickens; Louis, Renee Pualani

2008-11-01T23:59:59.000Z

37

Fourier Transform-Plasmon Waveguide Spectroscopy: A Nondestructive Multifrequency Method for Simultaneously Determining Polymer Thickness and Apparent Index of Refraction  

SciTech Connect (OSTI)

Fourier transform (FT)-plasmon waveguide resonance (PWR) spectroscopy measures light reflectivity at a waveguide interface as the incident frequency and angle are scanned. Under conditions of total internal reflection, the reflected light intensity is attenuated when the incident frequency and angle satisfy conditions for exciting surface plasmon modes in the metal as well as guided modes within the waveguide. Expanding upon the concept of two-frequency surface plasmon resonance developed by Peterlinz and Georgiadis [ Opt. Commun. 1996, 130, 260], the apparent index of refraction and the thickness of a waveguide can be measured precisely and simultaneously by FT-PWR with an average percent relative error of 0.4%. Measuring reflectivity for a range of frequencies extends the analysis to a wide variety of sample compositions and thicknesses since frequencies with the maximum attenuation can be selected to optimize the analysis. Additionally, the ability to measure reflectivity curves with both p- and s-polarized light provides anisotropic indices of refraction. FT-PWR is demonstrated using polystyrene waveguides of varying thickness, and the validity of FT-PWR measurements are verified by comparing the results to data from profilometry and atomic force microscopy (AFM).

Bobbitt, Jonathan M [Ames Laboratory; Weibel, Stephen C [GWC Technologies Inc; Elshobaki, Moneim [Iowa State University; Chaudhary, Sumit [Iowa State University; Smith, Emily A.

2014-12-16T23:59:59.000Z

38

Ft. Carson Army Base, Colorado Springs, Colorado | Department of Energy  

Office of Environmental Management (EM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergyENERGY TAX POLICIES7.pdf Flash2010-57.pdfDepartment(Fact6:21Education | DepartmentFt. Carson

39

10-ft Wave Flume Facility | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector GeneralDepartmentAUDIT REPORTOpenWende NewSowitec doWinvest Home Jweers's"Ghost"0-ft Wave

40

6-ft Wave Flume Facility | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160 East 300 SouthWater Rights, Substantive Jump to:Species |2008 |44Biosolids6-ft Wave

Note: This page contains sample records for the topic "thickness ft depth" 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

Ft. Carson Army Base, Colorado Springs, Colorado | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Year in3.pdf Flash2006-53.pdf0.pdfCost Savings | Department ofManagementofFront-end NuclearFt.

42

Starobinsky-like inflation induced by f(T) gravity  

E-Print Network [OSTI]

We study a single fluid component in a flat like universe governed by $f(T)$ gravity theories. The flat like universe does not imply a vanishing sectional curvature $k$, but assuming a vanishing of the coefficient of $k$ in the modified Friedmann equations. This enables us to extract a compatible pair of a scale factor $a(t)$ and an inverse power series $f(T)$. The Equation of State (EoS) evolves similarly in all models $k=0, \\pm 1$. In large Hubble ($H$)-spacetime the theory is consistent with the inflationary universe scenario and respects the conservation principle. We study the case when the teleparallel torsion is made of a single scalar field. The theory produces Starobinsky model naturally at its zeroth order without using a conformal transformation. Higher order solutions continuously interpolate between Starobinsky and quadratic inflation models. The slow-roll analysis shows double solutions so that for a single value of the spectral index $n_{s}$ the theory can predict double tensor-to-scalar ratios $r$ of Planck and BICEP2 data.

W. El Hanafy; G. L. Nashed

2014-10-08T23:59:59.000Z

43

Rotating drum variable depth sampler  

DOE Patents [OSTI]

A sampling device for collecting depth-specific samples in silt, sludge and granular media has three chambers separated by a pair of iris valves. Rotation of the middle chamber closes the valves and isolates a sample in a middle chamber.

Nance, Thomas A. (Aiken, SC); Steeper, Timothy J. (Trenton, SC)

2008-07-01T23:59:59.000Z

44

System for measuring film thickness  

DOE Patents [OSTI]

A system for determining the thicknesses of thin films of materials exhibiting fluorescence in response to exposure to excitation energy from a suitable source of such energy. A section of film is illuminated with a fixed level of excitation energy from a source such as an argon ion laser emitting blue-green light. The amount of fluorescent light produced by the film over a limited area within the section so illuminated is then measured using a detector such as a photomultiplier tube. Since the amount of fluorescent light produced is a function of the thicknesses of thin films, the thickness of a specific film can be determined by comparing the intensity of fluorescent light produced by this film with the intensity of light produced by similar films of known thicknesses in response to the same amount of excitation energy. The preferred embodiment of the invention uses fiber optic probes in measuring the thicknesses of oil films on the operational components of machinery which are ordinarily obscured from view.

Batishko, Charles R. (West Richland, WA); Kirihara, Leslie J. (Richland, WA); Peters, Timothy J. (Richland, WA); Rasmussen, Donald E. (Richland, WA)

1990-01-01T23:59:59.000Z

45

Ultrasonic material hardness depth measurement  

DOE Patents [OSTI]

The invention is an ultrasonic surface hardness depth measurement apparatus and method permitting rapid determination of hardness depth of shafts, rods, tubes and other cylindrical parts. The apparatus of the invention has a part handler, sensor, ultrasonic electronics component, computer, computer instruction sets, and may include a display screen. The part handler has a vessel filled with a couplant, and a part rotator for rotating a cylindrical metal part with respect to the sensor. The part handler further has a surface follower upon which the sensor is mounted, thereby maintaining a constant distance between the sensor and the exterior surface of the cylindrical metal part. The sensor is mounted so that a front surface of the sensor is within the vessel with couplant between the front surface of the sensor and the part.

Good, Morris S. (Richland, WA); Schuster, George J. (Kennewick, WA); Skorpik, James R. (Kennewick, WA)

1997-01-01T23:59:59.000Z

46

SESAM FT-IR: A Comparison of the R&D Workhorse to Standard Emission...  

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

Workhorse to Standard Emission Benches Data for a number of regulated emissions and ethanol using the SESAM FT-IR compare favorably with standard emissions analyzers....

47

Letter Report: Borehole Flow and Horizontal Hydraulic Conductivity with Depth at Well ER-12-4  

SciTech Connect (OSTI)

Borehole flow and fluid temperature during pumping were measured at well ER-12-4 at the Nevada Test Site in Nye County, Nevada. This well was constructed to characterize the carbonate aquifer. The well is cased from land surface to the total depth at 1,132 m (3,713 ft bgs) below ground surface (bgs). The screened section of the well consists of alternating sections of slotted well screen and blank casing from 948 to 1,132 m bgs (3,111 to 3,713 ft bgs). Borehole flow velocity (LT-1) with depth was measured with an impeller flowmeter from the top of the screened section to the maximum accessible depth while the well was pumped and under ambient conditions. A complicating factor to data interpretation is that the well was not filter packed and there is upward and downward vertical flow in the open annulus under ambient and pumping conditions. The open annulus in the well casing likely causes the calculated borehole flow rates being highly nonrepresentative of inflow from the formation. Hydraulic conductivities calculated under these conditions would require unsupportable assumptions and would be subject to very large uncertainties. Borehole hydraulic conductivities are not presented under these conditions.

Phil L. Oberlander; Charles E. Russell

2005-12-31T23:59:59.000Z

48

Author's personal copy Unexpected new phase detected in FT30 type reverse osmosis membranes using  

E-Print Network [OSTI]

Author's personal copy Unexpected new phase detected in FT30 type reverse osmosis membranes using Available online 13 July 2011 Keywords: Reverse osmosis membranes X-ray microscopy Poly phenylene diamine a b s t r a c t FT30 type thin film composite membranes used for reverse osmosis water purification

Hitchcock, Adam P.

49

Graceful Exit Inflation in $f(T)$ Gravity  

E-Print Network [OSTI]

We apply a quadratic teleparallel torsion scalar of the $f(T)=T+\\alpha T^{2}$ field equations to the spatially flat Friedmann-Robertson-Walker (FRW) model. We assume two perfect fluid components, the matter component has a fixed equation of state (EoS) parameter $\\omega$, while the torsion component has a dynamical EoS. We obtain an effective scale factor allowing a graceful exit inflation model with no need to slow roll technique. We perform a standard cosmological study to examine the cosmic evolution. In addition, the effective EoS shows consistent results confirming a smooth phase transition from inflation to radiation dominant universe. We consider the case when the torsion is made of a scalar field. This treatment enables us to induce a scalar field sensitive to the spacetime symmetry with an effective potential constructed from the quadratic $f(T)$ gravity. The model is parameterized by two parameters ($\\alpha,\\omega$) both derive the universe to exit out of de Sitter expansion. The first is purely gravitational and works effectively at large Hubble regime of the early stage allowing a slow roll potential. The second parameter $\\omega$ is a thermal-like correction coupled to the kinetic term and works effectively at low Hubble regime of late stages. The slow roll analysis of the obtained potential can perform tensor-to-scalar ratio and spectral index parameters consistent with the recent Planck and BICEP2 data. Both cosmological and scalar field analyses show consistent results.

G. G. L. Nashed; W. El Hanafy; Sh. Kh. Ibrahim

2015-04-04T23:59:59.000Z

50

New depths with mobile rig  

SciTech Connect (OSTI)

Magee-Poole Drilling Company, a drilling contractor operating out of the south Texas drilling center of Alice, claims it operates the largest mobile drilling rig in the world. That is, it's the only wheel mounted portable rig that drills to 16,000 feet with 4 1/2-inch drill pipe - at least 3000 feet deeper than the previous mobile drilling rig ratings. The unit is designated the Ingersoll-Rand 1500 Series. What's more significant, according to co-owner Don Magee, is that the rig's portability gets the rotary table turning to the right sooner; it drills more footage per year. It rigs up in 1 1/2 days versus 3 to 4 days for a conventional skid type rig normally used at these depths. The unit's compact arrangement, with more components combined into single loads, makes possible its higher mobility. A conventional skid rig might require 25 to 30 truckloads to move the rig components, mud system, fuel and water tank, houses for utilities, storage and crew change, generators, and drill pipe. The new rig moves in anywhere from four to nine loads less. Further, the rig components weigh less without sacrificing durability.

Not Available

1982-03-01T23:59:59.000Z

51

FT-IR spectroscopy technology, market evolution and future strategies of Bruker Optics Inc.  

E-Print Network [OSTI]

This thesis explores the technology and market evolution of FT-IR spectroscopy over its nearly forty year history to aid in determining future product design and marketing strategies for an industry-leading firm, Bruker ...

Higdon, Thomas (Thomas Charles)

2010-01-01T23:59:59.000Z

52

FT-ICR studies of metal-carbon binary clusters for formation mechanism of endohedral fullerene  

E-Print Network [OSTI]

Ion Mass [amu] C60 + Number of Carbon Atoms Intensity(arb.units) LaC44 + LaC50 + LaC60 + Figure 2FT-ICR studies of metal-carbon binary clusters for formation mechanism of endohedral fullerene-wall carbon nanotube), i.e. La, Y, Sc, Gd, Ce, Ca, and Ni-Y. An example of FT-ICR mass spectra is shown

Maruyama, Shigeo

53

FTIR and FT-PL spectroscopic analysis of TPV materials and devices  

SciTech Connect (OSTI)

Fourier transform (FT) spectroscopic techniques are useful in determining properties of thermophotovoltaic (TPV) materials and devices. The III-V TPV absorber materials have energy bandgaps that can be optimized for conversion of the near-infrared radiation emitted by thermal sources in the 1000{degree}{endash}1200&hthinsp;{degree}C temperature range. The bandgaps of these materials can be measured at room temperature using FT-photoluminescence spectroscopy, which can be done with a modified FT-Raman spectrophotometer operating in the near-infrared spectral region. The intensities and bandwidths of the FT-PL spectra also provide information on the extent of non-radiative recombination and the compositional uniformity of the materials. To achieve adequate operating efficiencies, TPV converters must return sub-bandgap radiation to the thermal source. The percent reflectance of the device in the mid-infrared spectral region is therefore an important operating parameter that can be accurately measured using FT-infrared (FTIR) spectroscopy with total reflectance optical accessories. In this paper, we discuss applications of these techniques to TPV materials and devices, and variations on these approaches, such as scanning micro-FT-PL spectroscopy, that enable microanalysis of TPV device structures at the 1{endash}100-{mu}m scale. {copyright} {ital 1999 American Institute of Physics.}

Webb, J.D.; Gedvilas, L.M.; Olson, M.R.; Wu, X.; Duda, A.; Wanlass, M.W.; Jones, K.M. [National Renewable Energy Laboratory, 1617 Cole Blvd., Golden, Colorado 80401 (United States)

1999-03-01T23:59:59.000Z

54

Geodesic Deviation Equation in GR equivalent theory of $f(T)$ gravity  

E-Print Network [OSTI]

In this work, we show that it is possible to study the GR equivalent notion of geodesic deviation in $f(T)$ gravity, in spite of the fact that in teleparallel gravity there is no notion of geodesics, and the torsion is responsible for the appearance of gravitational interaction. In this regard, we obtain the GR equivalent of $f(T)$ gravity whose equations are in the modified gravity form such as $f(R)$ gravity. Then, we obtain the GDE within the context of this modified gravity. In this way, the obtained geodesic deviation equation will correspond to the $f(T)$ gravity. Eventually, we extend the calculations to obtain the modification of Matting relation.

Darabi, F; Atazadeh, K

2015-01-01T23:59:59.000Z

55

Geodesic Deviation Equation in GR equivalent theory of $f(T)$ gravity  

E-Print Network [OSTI]

In this work, we show that it is possible to study the GR equivalent notion of geodesic deviation in $f(T)$ gravity, in spite of the fact that in teleparallel gravity there is no notion of geodesics, and the torsion is responsible for the appearance of gravitational interaction. In this regard, we obtain the GR equivalent of $f(T)$ gravity whose equations are in the modified gravity form such as $f(R)$ gravity. Then, we obtain the GDE within the context of this modified gravity. In this way, the obtained geodesic deviation equation will correspond to the $f(T)$ gravity. Eventually, we extend the calculations to obtain the modification of Matting relation.

F. Darabi; M. Mousavi; K. Atazadeh

2014-12-31T23:59:59.000Z

56

Ultra-clean Fischer-Tropsch (F-T) Fuels Production and Demonstration Project  

SciTech Connect (OSTI)

The objective of the DOE-NETL Fischer-Tropsch (F-T) Production and Demonstration Program was to produce and evaluate F-T fuel derived from domestic natural gas. The project had two primary phases: (1) fuel production of ultra-clean diesel transportation fuels from domestic fossil resources; and (2) demonstration and performance testing of these fuels in engines. The project also included a well-to-wheels economic analysis and a feasibility study of small-footprint F-T plants (SFPs) for remote locations such as rural Alaska. During the fuel production phase, ICRC partnered and cost-shared with Syntroleum Corporation to complete the mechanical design, construction, and operation of a modular SFP that converts natural gas, via F-T and hydro-processing reactions, into hydrogensaturated diesel fuel. Construction of the Tulsa, Oklahoma plant started in August 2002 and culminated in the production of over 100,000 gallons of F-T diesel fuel (S-2) through 2004, specifically for this project. That fuel formed the basis of extensive demonstrations and evaluations that followed. The ultra-clean F-T fuels produced had virtually no sulfur (less than 1 ppm) and were of the highest quality in terms of ignition quality, saturation content, backend volatility, etc. Lubricity concerns were investigated to verify that commercially available lubricity additive treatment would be adequate to protect fuel injection system components. In the fuel demonstration and testing phase, two separate bus fleets were utilized. The Washington DC Metropolitan Area Transit Authority (WMATA) and Denali National Park bus fleets were used because they represented nearly opposite ends of several spectra, including: climate, topography, engine load factor, mean distance between stops, and composition of normally used conventional diesel fuel. Fuel evaluations in addition to bus fleet demonstrations included: bus fleet emission measurements; F-T fuel cold weather performance; controlled engine dynamometer lab evaluation; cold-start test-cell evaluations; overall feasibility, economics, and efficiency of SFP fuel production; and an economic analysis. Two unexpected issues that arose during the project were further studied and resolved: variations in NOx emissions were accounted for and fuel-injection nozzle fouling issues were traced to the non-combustible (ash) content of the engine oil, not the F-T fuel. The F-T fuel domestically produced and evaluated in this effort appears to be a good replacement candidate for petroleum-based transportation fuels. However, in order for domestic F-T fuels to become a viable cost-comparable alternative to petroleum fuels, the F-T fuels will need to be produced from abundant U.S. domestic resources such as coal and biomass, rather than stranded natural gas.

Stephen P. Bergin

2006-06-30T23:59:59.000Z

57

Magnetic vortices in a distributed Josephson junction with electrodes of finite thickness  

SciTech Connect (OSTI)

A distributed Josephson junction with electrodes of finite thickness is considered in the case of high critical current density when the Josephson penetration depth {lambda}{sub {ital j}} is less than the London depth {lambda}{sub {ital L}}. A nonlinear nonlocal equation for steady-state distributions of phase difference {ital cphi} across the junction is derived. In the asymptotical case of thin electrodes an exact nonlinear solution for this equation which corresponds to an isolated at-rest Josephson vortex is found. A numerical investigation of the equation derived is carried out and some static and dynamic characteristics of vortices in such a Josephson junction are represented.

Alfimov, G.L.; Popkov, A.F. [F. V. Lukin`s Research Institute of Physicsl Problems, Zelenograd, Moscow, 103460 (Russian Federation)] [F. V. Lukin`s Research Institute of Physicsl Problems, Zelenograd, Moscow, 103460 (Russian Federation)

1995-08-01T23:59:59.000Z

58

Chemical Reaction of Metal-Carbon Binary Cluster Anions by FT-ICR Mass Spectrometer  

E-Print Network [OSTI]

45 48 51 54 57 60 Number of Carbon Atoms Intensity(arbitrary) (a) as injected (b) SWIFTed (c) NO 1sChemical Reaction of Metal-Carbon Binary Cluster Anions by FT-ICR Mass Spectrometer S. Maruyama, M- fullerene and single walled carbon nanotubes are investigated through experimental studies of interaction

Maruyama, Shigeo

59

FT-ICR ,,,Carbon Clusters and Metal/Carbon Binary Clusters  

E-Print Network [OSTI]

60 70 80 720 760 800 Ion Mass [amu] ScC60 + C64 + Number of Carbon Atoms Intensity(arb.units) ScC60FT-ICR ,�,æ,éCarbon Clusters and Metal/Carbon Binary Clusters ·>Í­ì·³"¹1 ·C Masamichi Kohno1 , Tetsuya

Maruyama, Shigeo

60

Utility Assessment Report for SPIDERS Phase 2: Ft. Carson (Rev 1.0)  

SciTech Connect (OSTI)

This document contains the Utility Assessment Report (UAR) for the Phase 2 operational Demonstration (OD) of the Smart Power Infrastructure Demonstration for Energy Reliability and Security (SPIDERS) Joint Capability Technology Demonstration (JCTD). The UAR for Phase 2 shows that the SPIDERS system was able to meet the requirements of the Implementation Directive at Ft. Carson.

Barr, Jonathan L.; Tuffner, Francis K.; Hadley, Mark D.; Schneider, Kevin P.

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "thickness ft depth" 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

If*|lg1JEDIlls ,,ft-o-aS.2  

E-Print Network [OSTI]

»-H a3UW ·3USi «c« «"22"5"35» If*|lg1JEDIlls pV) 232 *2*& yuo = OW O5oc ,,ft-o-aS.2 F.O-a-- o :§>£ £1 2 (genetic code) Eukaryotes Sexual populations Animals, plants, fungi (cell differentiation) Colonies (non

62

Thickness controlled sol-gel silica films for plasmonic bio-sensing devices  

SciTech Connect (OSTI)

Plasmonics has recently received considerable interest due to its potentiality in many fields as well as in nanobio-technology applications. In this regard, various strategies are required for modifying the surfaces of plasmonic nanostructures and to control their optical properties in view of interesting application such as bio-sensing, We report a simple method for depositing silica layers of controlled thickness on planar plasmonic structures. Tetraethoxysilane (TEOS) was used as silica precursor. The control of the silica layer thickness was obtained by optimizing the sol-gel method and dip-coating technique, in particular by properly tuning different parameters such as pH, solvent concentration, and withdrawal speed. The resulting films were characterized via atomic force microscopy (AFM), Fourier-transform (FT) spectroscopy, and spectroscopic ellipsometry (SE). Furthermore, by performing the analysis of surface plasmon resonances before and after the coating of the nanostructures, it was observed that the position of the resonance structures could be properly shifted by finely controlling the silica layer thickness. The effect of silica coating was assessed also in view of sensing applications, due to important advantages, such as surface protection of the plasmonic structure.

Figus, Cristiana, E-mail: cristiana.figus@dsf.unica.it; Quochi, Francesco, E-mail: cristiana.figus@dsf.unica.it; Artizzu, Flavia, E-mail: cristiana.figus@dsf.unica.it; Saba, Michele, E-mail: cristiana.figus@dsf.unica.it; Marongiu, Daniela, E-mail: cristiana.figus@dsf.unica.it; Mura, Andrea; Bongiovanni, Giovanni [Dipartimento di Fisica - University of Cagliari, S.P. Km 0.7, I-09042 Monserrato (Canada) (Italy); Floris, Francesco; Marabelli, Franco; Patrini, Maddalena; Fornasari, Lucia [Dipartimento di Fisica - University of Pavia, Via Agostino Bassi 6, I-27100 Pavia (PV) (Italy); Pellacani, Paola; Valsesia, Andrea [Plasmore S.r.l. -Via Grazia Deledda 4, I-21020 Ranco (Vatican City State, Holy See) (Italy)

2014-10-21T23:59:59.000Z

63

MonolayerThickness of Block Copolymer Films  

E-Print Network [OSTI]

.47 · Index of ref. for PS-PEHMA 1.51 #12;Annealing the films · Tg 22nm 24nm Height Images #12;AFM 12-33 26nm 28nm 30nm Bi-continuous #12;12-33Area% 13.08 31.55 41 Area % Thickness (nm) Monolayer: 18.86nm Bilayer: 37.72nm #12;Monolayer thickness 12

Petta, Jason

64

Source depth for solar p-modes  

E-Print Network [OSTI]

Theoretically calculated power spectra are compares with observed solar p-mode velocity power spectra over a range of mode degree and frequency. The depth for the sources responsible for exciting p-modes of frequency 2.0 mHz is determined from the asymmetry of their power spectra and found to be about 800 km below the photosphere for quadrupole sources and 150 km if sources are dipole. The source depth for high frequency oscillations of frequency greater than about 6 mHz is 180 (50) km for quadrupole (dipole) sources.

Pawan Kumar; Sarbani Basu

2000-06-15T23:59:59.000Z

65

Absolute Approximation of Tukey Depth: Theory and Experiments  

E-Print Network [OSTI]

Absolute Approximation of Tukey Depth: Theory and Experiments Dan Chen School of Computer Science¨ur Theoretische Informatik Abstract A Monte Carlo approximation algorithm for the Tukey depth problem in high. Keywords: Tukey depth, computational geometry 1. Introduction Tukey depth is also known as location depth

Morin, Pat

66

Depth and Depth-Color Coding using Shape-Adaptive Wavelets  

E-Print Network [OSTI]

-view autostereoscopic displays, 3D-TV is expected to be the next evolution of television after high definition. Three Abstract We present a novel depth and depth-color codec aimed at free-viewpoint 3D-TV. The proposed codec is implemented by shape-adaptive lifting, which enables fast computations and perfect reconstruction. We derive

Do, Minh N.

67

Africa Aerosol Optical Depth Obtained From MISR  

E-Print Network [OSTI]

OpticalDepth Central African Republic Chad Djibouti Egypt Ethiopia Libya Kenya Somalia Sudan Uganda #12;Southern Africa Ethiopia Libya Kenya Somalia Sudan Uganda #12;Southern Africa 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 Mean Seasonal

Frank, Thomas D.

68

Collision Avoidance in Depth Space I. INTRODUCTION  

E-Print Network [OSTI]

; compute distances between the obstacles and the robot; optionally project the results in the CartesianCollision Avoidance in Depth Space I. INTRODUCTION When humans and robots share the same work space, safety is the primary issue of concern [8]. Secondary but not negligible is to prevent robot damages due

De Luca, Alessandro

69

Depth distribution of lithium in oxidized binary Al-Li alloys determined by secondary ion mass spectrometry and neutron depth profiling  

SciTech Connect (OSTI)

Oxidation of binary Al-Li alloys during short exposures at 530 C and long exposures at 200 C was studied with regard to the Li distribution. Secondary ion mass spectrometry (SIMS) and neutron depth profiling (NDP) were used to obtain quantitative Li depth profiles across the surface oxide layer and the underlying alloy. The underlying alloy was depleted in Li as a result of oxidation at 530 and 200 C. The SIMS and NDP results showed good mutual agreement and were used to evaluate the oxide thickness, the Li concentration at the oxide-ally interface, and the mass balance between oxide and alloy. The Li depletion profiles in the alloy were also calculated using the interdiffusion coefficients reported in the literature and compared with the measured profiles; the two profiles differed at 530 C but showed good agreement at 200 C.

Soni, K.K. (Univ. of Chicago, IL (United States)); Williams, D.B. (Lehigh Univ., Bethlehem, PA (United States)); Newbury, D.E.; Chi, P.; Downing, R.G.; Lamaza, G. (National Inst. of Standards and Technology, Gaithersburg, MD (United States))

1993-01-01T23:59:59.000Z

70

Determining Nighttime Atmospheric Optical Depth Using Mars Exploration Rover Images  

E-Print Network [OSTI]

was compared to the expected flux to give nighttime optical depth values. The observed nighttime optical depth was consistently similar to the daytime optical depth values on both an individual image and sol-averaged basis. Recommendations are made going...

Bean, Keri Marie

2013-07-22T23:59:59.000Z

71

Wall thickness measuring method and apparatus  

DOE Patents [OSTI]

An apparatus for measuring the wall thickness of a nonmagnetic article having a housing supporting a magnet and a contiguous supporting surface. The tubular article and the housing are releasably secured to the supporting surface and a support member of an optical comparator, respectively. To determine the wall thickness of the article at a selected point, a magnetically responsive ball is positioned within the tubular article over said point and retained therein by means of a magnetic field produced by the magnet. Thereafter, an optical comparator is employed to project a magnified image of the ball on a screen and the wall thickness at the selected point is calculated by using a ball surface measurement taken with the comparator in conjunction with a previously determined base line measurement.

Salzer, L.J.; Bergren, D.A.

1987-10-06T23:59:59.000Z

72

Wall thickness measuring method and apparatus  

DOE Patents [OSTI]

An apparatus for measuring the wall thickness of a nonmagnetic article having a housing supporting a magnet and a contiguous supporting surface. The tubular article and the housing are releasably secured to the supporting surface and a support member of an optical comparator, respectively. To determine the wall thickness of the article at a selected point, a magnetically responsive ball is positioned within the tubular article over said point and retained therein by means of a magnetic field produced by the magnet. Thereafter, an optical comparator is employed to project a magnified image of the ball on a screen and the wall thickness at the selected point is calculated by using a ball surface measurement taken with the comparator in conjunction with a previously determined base line measurement.

Salzer, Leander J. (Los Alamos, NM); Bergren, Donald A. (Los Alamos, NM)

1989-01-01T23:59:59.000Z

73

Interacting Dark Energy in f(T) cosmology : A Dynamical System analysis  

E-Print Network [OSTI]

The present work deals with an interacting dark energy model in the framework of f(T) cosmology. A cosmologically viable form of f(T) is chosen (T is the torsion scalar in teleparallelism) in the background of flat homogeneous and isotropic Friedmann-Robertson-Walker (FRW) space-time model of the universe. The matter content of the universe is chosen as dust interacting with minimally coupled scalar field. The evolution equations are reduced to an autonomous system of ordinary differential equations by suitable transformation of variables. The nature of critical points are analyzed by evaluating the eigenvalues of the linearized Jacobi matrix and stable attractors are examined from the point of view of cosmology. Finally, both classical and quantum stability of the model have been discussed.

Biswas, Sujay Kr

2015-01-01T23:59:59.000Z

74

Defense-in-Depth, How Department of Energy Implements Radiation...  

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

Defense-in-Depth, How Department of Energy Implements Radiation Protection in Low Level Waste Disposal Defense-in-Depth, How Department of Energy Implements Radiation Protection in...

75

A special exact spherically symmetric solution in f(T) gravity theories  

E-Print Network [OSTI]

A non-diagonal spherically symmetric tetrad field, involving four unknown functions of radial coordinate $r$, is applied to the equations of motion of f(T) gravity theory. A special exact vacuum solution with one constant of integration is obtained. The scalar torsion related to this special solution vanishes. To understand the physical meaning of the constant of integration we calculate the energy associated with this solution and show how it is related to the gravitational mass of the system.

G. G. L. Nashed

2015-02-17T23:59:59.000Z

76

A special exact spherically symmetric solution in f(T) gravity theories  

E-Print Network [OSTI]

A non-diagonal spherically symmetric tetrad field, involving four unknown functions of radial coordinate $r$, is applied to the equations of motion of f(T) gravity theory. A special exact vacuum solution with one constant of integration is obtained. The scalar torsion related to this special solution vanishes. To understand the physical meaning of the constant of integration we calculate the energy associated with this solution and show how it is related to the gravitational mass of the system.

Nashed, G G L

2015-01-01T23:59:59.000Z

77

Systematic Evaluation of Jc Decrease in Thick Film Coated Conductors  

SciTech Connect (OSTI)

Address both thickness dependence of Jc, in thick film YBCO coated conductors through an application of a suite of new measurement techniques to thick film wire samples produced by commercially viable coated conductor technologies.

Alex Ignatiev; Dr. Amit Goyal

2006-05-10T23:59:59.000Z

78

Gas turbine bucket wall thickness control  

DOE Patents [OSTI]

A core for use in casting a turbine bucket including serpentine cooling passages is divided into two pieces including a leading edge core section and a trailing edge core section. Wall thicknesses at the leading edge and the trailing edge of the turbine bucket can be controlled independent of each other by separately positioning the leading edge core section and the trailing edge core section in the casting die. The controlled leading and trailing edge thicknesses can thus be optimized for efficient cooling, resulting in more efficient turbine operation.

Stathopoulos, Dimitrios (Glenmont, NY); Xu, Liming (Greenville, SC); Lewis, Doyle C. (Greer, SC)

2002-01-01T23:59:59.000Z

79

Trapped-ion cell with improved DC potential harmonicity for FT-ICR MS  

SciTech Connect (OSTI)

The trapped-ion cell is a key component critical for optimal performance in Fourier transform ion cyclotron resonance (FT-ICR) mass spectrometry (MS). We have upgraded our 12 Tesla FT-ICR instrument with a new open cylindrical cell that includes four additional cylindrical segments that serve as compensation electrodes. The DC potential on the additional segments can be set to specific pre-calculated values to suppress DC trapping field anharmonicity, in an effort to improve coherence of the ion cyclotron motion and minimize deviations from the calibration function of the ideal cell. Alternatively, the compensation potentials can be set equal to potentials of adjacent cell electrodes, which creates a DC potential distribution equivalent to that of a regular open cylindrical cell. The initial experimental characterization of both the compensated and open cell configurations was performed using ESI direct infusion of a peptide mixture. Operating the compensated cell at increased post-excitation radii resulted in improved mass measurement accuracy together with increased signal intensity, while the regular configuration exhibited peak splitting and reduced signal life time under these operating conditions. The observed improvement of the compensated cell performance was consistent with the expected behavior due to the improved DC potential harmonicity. These results confirm that the trapping DC potential harmonicity is significant for optimizing FT-ICR MS performance.

Tolmachev, Aleksey V.; Robinson, Errol W.; Wu, Si; Kang, Hyuk; Lourette, Natacha M.; Pasa-Tolic, Ljiljana; Smith, Richard D.

2008-04-01T23:59:59.000Z

80

Final technical report. In-situ FT-IR monitoring of a black liquor recovery boiler  

SciTech Connect (OSTI)

This project developed and tested advanced Fourier transform infrared (FT-IR) instruments for process monitoring of black liquor recovery boilers. The state-of-the-art FT-IR instruments successfully operated in the harsh environment of a black liquor recovery boiler and provided a wealth of real-time process information. Concentrations of multiple gas species were simultaneously monitored in-situ across the combustion flow of the boiler and extractively at the stack. Sensitivity to changes of particulate fume and carryover levels in the process flow were also demonstrated. Boiler set-up and operation is a complex balance of conditions that influence the chemical and physical processes in the combustion flow. Operating parameters include black liquor flow rate, liquor temperature, nozzle pressure, primary air, secondary air, tertiary air, boiler excess oxygen and others. The in-process information provided by the FT-IR monitors can be used as a boiler control tool since species indicative of combustion efficiency (carbon monoxide, methane) and pollutant emissions (sulfur dioxide, hydrochloric acid and fume) were monitored in real-time and observed to fluctuate as operating conditions were varied. A high priority need of the U.S. industrial boiler market is improved measurement and control technology. The sensor technology demonstrated in this project is applicable to the need of industry.

James Markham; Joseph Cosgrove; David Marran; Jorge Neira; Chad Nelson; Peter Solomon

1999-05-31T23:59:59.000Z

Note: This page contains sample records for the topic "thickness ft depth" 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

Stretching and bending with flexible FT-IR process monitors, probes and software  

SciTech Connect (OSTI)

FT-IR process analyzers continue to gain recognition for reliable and accurate on-line analyses on a broad variety of processes around the world. When fast analyses are required, on-line FT-IR analyzers offer speed and specificity for many applications. The use of FT-IR spectroscopy, either in the Mid-IR region or Near IR region offers fundamental advantages over other technologies. These advantages make calibrations exceptionally stable for an analyzer over time and offer improved ease of calibration transfer between similar analyzers. Spectral region selection criteria are reviewed, to help define when to use the Mid-IR region or the Near-IR region (or even when to use parts of both) for a given sample stream. New fiber optic sampling probes for transmission, attenuated total reflection, diffuse reflection and web sensing have solved nagging problems. What many process analyzer specialists are discovering is that new probes are becoming available each month, offering newer process tolerance (can tolerate higher temp or pressure) or even new sampling approaches altogether. This paper describes on-line applications in pharmaceuticals, specialty chemicals, polymer production and refinery production which demonstrate the range of techniques used to appropriately optimize the on-line analyzer. In addition, calibration transfer issues will be discussed, demonstrating the importance of the software tools to help sort out the causes for cal errors (spectral contamination, etc.).

Peters, D.C. [KVB/Analect, Utica, NY (United States)

1995-12-31T23:59:59.000Z

82

In metamorphosed limestone, dolostone,and marble  

E-Print Network [OSTI]

) or more in areas of subsidence from piping in thick unconsolidated material Fissures and voids present to a depth of 50 ft (15 m) in areas of subsidence from piping in thick,unconsolidated material Fissures

Torgersen, Christian

83

Effect of Thickness on the Structure, Composition and Properties...  

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

Effect of Thickness on the Structure, Composition and Properties of Titanium Nitride Nano-Coatings. Effect of Thickness on the Structure, Composition and Properties of Titanium...

84

Free Energy of thick Center Vortices  

E-Print Network [OSTI]

The free energy of thick center vortices is calculated in continuum Yang-Mills theory in one-loop approximation using the proper time regularization. The vortices are represented by Abelian gauge field configurations on the torus which satisfy twisted boundary conditions.

Ch. Korn; H. Reinhardt; T. Tok

2005-08-05T23:59:59.000Z

85

Thickness and drainage of perfluoropolyethers under compression  

SciTech Connect (OSTI)

The Surface Forces Apparatus was used to study the compression and drainage of perfluoropolyethers (PFPE) between two flat parallel mica surfaces. In the case of Zdols and Demnum-SA, the PFPE can be squeezed out during slow compression to a final residual film one gyration diameter in thickness. This thickness remained constant up to the highest applied pressure of (is similar to)10 MPa. The residual thickness for Demnum-SA, with one active end group, was found to be approximately 40% larger than that for Zdol of the same molecular weight, with two active end groups. In contrast, Z03, with no active end groups, could be displaced completely from the contact. The dynamics of expulsion were studied by monitoring the variation of the gap width as a function of time after fast (a few milliseconds) step increase in the compressive load. It was found that Zdol behaves as the bulk liquid down to gap widths of 4 equivalent gyration diameters. A viscosity increase of more than 10 times was observed when the gap width was between 4 and 2 gyration diameters. Finally, slow compression to the maximum achievable pressure (approximately 10 MPa) led to a residual layer one gyration diameter in thickness trapped between the mica surfaces.

Xu, Lei; Ogletree, D Frank; Salmeron, Miquel; Tang, Huan; Gui, Jing

2001-01-01T23:59:59.000Z

86

An Atmospheric Radiation Measurement Value-Added Product to Retrieve Optically Thin Cloud Visible Optical Depth using Micropulse Lidar  

SciTech Connect (OSTI)

The purpose of the Micropulse Lidar (MPL) Cloud Optical Depth (MPLCOD) Value-Added Product (VAP) is to retrieve the visible (short-wave) cloud optical depth for optically thin clouds using MPL. The advantage of using the MPL to derive optical depth is that lidar is able to detect optically thin cloud layers that may not be detected by millimeter cloud radar or radiometric techniques. The disadvantage of using lidar to derive optical depth is that the lidar signal becomes attenuation limited when ? approaches 3 (this value can vary depending on instrument specifications). As a result, the lidar will not detect optically thin clouds if an optically thick cloud obstructs the lidar beam.

Lo, C; Comstock, JM; Flynn, C

2006-10-01T23:59:59.000Z

87

Thin, thick and dark discs in LCDM  

E-Print Network [OSTI]

In a LCDM cosmology, the Milky Way accretes satellites into the stellar disc. We use cosmological simulations to assess the frequency of near disc plane and higher inclination accretion events, and collisionless simulations of satellite mergers to quantify the final state of the accreted material and the effect on the thin disc. On average, a Milky Way-sized galaxy has 3 subhalos with vmax>80km/s; 7 with vmax>60km/s; and 15 with vmax>40km/s merge at redshift z>1. Assuming isotropic accretion, a third of these merge at an impact angle 20 degrees) are twice as likely as low inclination ones. These lead to structures that closely resemble the recently discovered inner/outer stellar halos. They also do more damage to the Milky Way stellar disc creating a more pronounced flare, and warp; both long-lived and consistent with current observations. The most massive mergers (vmax>80km/s) heat the thin disc enough to produce a thick disc. These heated thin disc stars are essential for obtaining a thick disc as massive as that seen in the Milky Way; they likely comprise some ~50-90% of the thick disc stars. The Milky Way thin disc must reform from fresh gas after z=1 [abridged].

J. I. Read; G. Lake; O. Agertz; Victor P. Debattista

2008-06-26T23:59:59.000Z

88

A case study, artificial insemination versus natural breeding at Overland Farms, Ft. Worth, Texas  

E-Print Network [OSTI]

in Ft. Worth, Texas. A total of 19 mares were bred by natural service by the Quarter Horse stallions, Tuffys Three Bars and The Ultimate Copy during the period beginning February 1, 1985 and ending July 5, 1985. As of the end of this period, 14 mares... at the case farm (Overland Farms). Presently, natural breeding is utilized. Considerations for using A. I. were: 1) number of mares and stallions to be used in the program, 2) start-up costs and 3) returns to capital investments by capital budgeting...

Migues, Loraine C.

1985-01-01T23:59:59.000Z

89

Weak-Field Spherically Symmetric Solutions in $f(T)$ gravity  

E-Print Network [OSTI]

We study weak-field solutions having spherical symmetry in $f(T)$ gravity; to this end, we solve the field equations for a non diagonal tetrad, starting from Lagrangian in the form $f(T)=T+\\alpha T^{n}$, where $\\alpha$ is a small constant, parameterizing the departure of the theory from GR. We show that the classical spherically symmetric solutions of GR, i.e. the Schwarzschild and Schwarzschild-de Sitter solutions, are perturbed by terms in the form $\\propto r^{2-2n}$ and discuss the impact of these perturbations in observational tests.

Ruggiero, Matteo Luca

2015-01-01T23:59:59.000Z

90

ft. n. Both, Ohtef, RarourQb DWrion,Oak Ridgo  

Office of Legacy Management (LM)

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 May Jun Jul(Summary) "ofEarlyEnergyDepartment ofDepartment ofof EnergyYou$0.C. 20545 OCTTO:March_ ,' .' ft. n. Both, Ohtef,

91

In-depth analysis of CIGS film for solar cells, structural and optical characterization  

E-Print Network [OSTI]

Space-resolved X-ray diffraction measurements performed on gradient-etched CuIn$_{1-x}$Ga$_x$Se$_2$ (CIGS) solar cells provide information about stress and texture depth profiles in the absorber layer. An important parameter for CIGS layer growth dynamics, the absorber thickness-dependent stress in the molybdenum back contact is analyzed. Texturing of grains and quality of the polycrystalline absorber layer are correlated with the intentional composition gradients (band gap grading). Band gap gradient is determined by space-resolved photoluminescence measurements and correlated with composition and strain profiles.

Slobodskyy, A; ~Ulyanenkova, T; ~Doyle, S; Powalla, M; ~Baumbach, T; ~Lemmer, U

2010-01-01T23:59:59.000Z

92

Accurate hydrogen depth profiling by reflection elastic recoil detection analysis  

SciTech Connect (OSTI)

A technique to convert reflection elastic recoil detection analysis spectra to depth profiles, the channel-depth conversion, was introduced by Verda, et al [1]. But the channel-depth conversion does not correct for energy spread, the unwanted broadening in the energy of the spectra, which can lead to errors in depth profiling. A work in progress introduces a technique that corrects for energy spread in elastic recoil detection analysis spectra, the energy spread correction [2]. Together, the energy spread correction and the channel-depth conversion comprise an accurate and convenient hydrogen depth profiling method.

Verda, R. D. (Raymond D.); Tesmer, Joseph R.; Nastasi, Michael Anthony,; Bower, R. W. (Robert W.)

2001-01-01T23:59:59.000Z

93

XVIII. TEST HOLES IN THE VALLE TOLEDO AND VALLE GRANDE (1948)  

E-Print Network [OSTI]

for Los Alamos," Consulting Report to the U.S. Atomic Energy Commission (1948). RIM San Antonio Creek Spr filled up to 73 ft with sand while bailing; abundant water. Thickness Depth Log (ft) (ft) Silt, sand, and gravel 11 11 Sand and gravel alternating with sticky brown clay 89 100 2. Test Hole 2 Location: Valle

94

Cyclohexene Photo-oxidation over Vanadia Catalyst Analyzed by Time Resolved ATR-FT-IR Spectroscopy  

SciTech Connect (OSTI)

Vanadia was incorporated in the 3-dimensional mesoporous material TUD-1 with a loading of 2percent w/w vanadia. The performance in the selective photo-oxidation of liquid cyclohexene was investigated using ATR-FT-IR spectroscopy. Under continuous illumination at 458 nm a significant amount of product, i.e. cyclohexenone, was identified. This demonstrates for the first time that hydroxylated vanadia centers in mesoporous materials can be activated by visible light to induce oxidation reactions. Using the rapid scan method, a strong perturbation of the vanadyl environment could be observed in the selective oxidation process induced by a 458 nm laser pulse of 480 ms duration. This is proposed to be caused by interaction of the catalytic centre with a cyclohexenyl hydroperoxide intermediate. The restoration of the vanadyl environment could be kinetically correlated to the rate of formation of cyclohexenone, and is explained by molecular rearrangement and dissociation of the peroxide to ketone and water. The ketone diffuses away from the active center and ATR infrared probing zone, resulting in a decreasing ketone signal on the tens of seconds time scale after initiation of the photoreaction. This study demonstrates the high potential of time resolved ATR FT-IR spectroscopy for mechanistic studies of liquid phase reactions by monitoring not only intermediates and products, but by correlating the temporal behavior of these species to molecular changes of the vanadyl catalytic site.

Frei, Heinz; Mul, Guido; Wasylenko, Walter; Hamdy, M. Sameh; Frei, Heinz

2008-06-04T23:59:59.000Z

95

Skin thickness effects on in vivo LXRF  

SciTech Connect (OSTI)

The analysis of lead concentration in bone utilizing LXRF can be adversely effected by overlying issue. A quantitative measure of the attenuation of the 10.5 keV Pb L a x-ray signal by skin and skin equivalent plastic has been conducted. Concentration ranges in plaster of Paris and goat bone from 7 to 90 ppm with attenuators of Lucite{reg_sign} and pig skin were examined. It is concluded that no quantitative or semi quantitative analysis can be achieved if overlying sue thickness exceeds 3 mm for Ph concentrations of less than 30 porn Ph in bone.

Preiss, I.L.; Washington, W. II [Rensselaer Polytechnic Inst., Troy, NY (United States)

1995-12-31T23:59:59.000Z

96

Gulf of Mexico Proved Reserves By Water Depth, 2009  

Gasoline and Diesel Fuel Update (EIA)

Gulf of Mexico Proved Reserves and Production by Water Depth, 2009 1 Gulf of Mexico Proved Reserves and Production by Water Depth The Gulf of Mexico Federal Offshore region (GOM...

97

Depth profiling ambient noise in the deep ocean  

E-Print Network [OSTI]

al. , 2005). The vertical profile of wind speed over the seavertical directionality…………… Depth-dependence of wind speedVertical noise directional density function versus depth. 93 Measured and acoustically estimated wind speeds.

Barclay, David Readshaw

2011-01-01T23:59:59.000Z

98

Determination of thickness and composition of high-k dielectrics using high-energy electrons  

SciTech Connect (OSTI)

We demonstrate the application of high-energy elastic electron backscattering to the analysis of thin (2–20 nm) HfO{sub 2} overlayers on oxidized Si substrates. The film composition and thickness are determined directly from elastic scattering peaks characteristic of each element. The stoichiometry of the films is determined with an accuracy of 5%–10%. The experimental results are corroborated by medium energy ions scattering and Rutherford backscattering spectrometry measurements, and clearly demonstrate the applicability of the technique for thin-film analysis. Significantly, the presented technique opens new possibilities for nm depth profiling with high spatial resolution in scanning electron microscopes.

Grande, P. L. [Department of Electronic Materials Engineering, Research School of Physics and Engineering, The Australian National University, Canberra ACT 0200 (Australia) [Department of Electronic Materials Engineering, Research School of Physics and Engineering, The Australian National University, Canberra ACT 0200 (Australia); Instituto de Física, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS (Brazil); Vos, M. [Atomic and Molecular Physics Laboratory, Research School of Physics and Engineering, The Australian National University, Canberra ACT 0200 (Australia)] [Atomic and Molecular Physics Laboratory, Research School of Physics and Engineering, The Australian National University, Canberra ACT 0200 (Australia); Venkatachalam, D. K.; Elliman, R. G. [Department of Electronic Materials Engineering, Research School of Physics and Engineering, The Australian National University, Canberra ACT 0200 (Australia)] [Department of Electronic Materials Engineering, Research School of Physics and Engineering, The Australian National University, Canberra ACT 0200 (Australia); Nandi, S. K. [Department of Electronic Materials Engineering, Research School of Physics and Engineering, The Australian National University, Canberra ACT 0200 (Australia) [Department of Electronic Materials Engineering, Research School of Physics and Engineering, The Australian National University, Canberra ACT 0200 (Australia); Research School of Astronomy and Astrophysics, The Australian National University, Canberra ACT 2611 (Australia); Department of Physics, University of Chittagong, Chittagong 4331 (Bangladesh)

2013-08-12T23:59:59.000Z

99

Output-Sensitive Algorithms for Tukey Depth and Related Problems  

E-Print Network [OSTI]

Output-Sensitive Algorithms for Tukey Depth and Related Problems David Bremner University of New de Bruxelles Pat Morin Carleton University Abstract The Tukey depth (Tukey 1975) of a point p halfspace that contains p. Algorithms for computing the Tukey depth of a point in various dimensions

Morin, Pat

100

Hyperspectral Aerosol Optical Depths from TCAP Flights  

SciTech Connect (OSTI)

4STAR (Spectrometer for Sky-Scanning, Sun-Tracking Atmospheric Research), the world’s first hyperspectral airborne tracking sunphotometer, acquired aerosol optical depths (AOD) at 1 Hz during all July 2012 flights of the Two Column Aerosol Project (TCAP). Root-mean square differences from AERONET ground-based observations were 0.01 at wavelengths between 500-1020 nm, 0.02 at 380 and 1640 nm and 0.03 at 440 nm in four clear-sky fly-over events, and similar in ground side-by-side comparisons. Changes in the above-aircraft AOD across 3-km-deep spirals were typically consistent with integrals of coincident in situ (on DOE Gulfstream 1 with 4STAR) and lidar (on NASA B200) extinction measurements within 0.01, 0.03, 0.01, 0.02, 0.02, 0.02 at 355, 450, 532, 550, 700, 1064 nm, respectively, despite atmospheric variations and combined measurement uncertainties. Finer vertical differentials of the 4STAR measurements matched the in situ ambient extinction profile within 14% for one homogeneous column. For the AOD observed between 350-1660 nm, excluding strong water vapor and oxygen absorption bands, estimated uncertainties were ~0.01 and dominated by (then) unpredictable throughput changes, up to +/-0.8%, of the fiber optic rotary joint. The favorable intercomparisons herald 4STAR’s spatially-resolved high-frequency hyperspectral products as a reliable tool for climate studies and satellite validation.

Shinozuka, Yohei; Johnson, Roy R.; Flynn, Connor J.; Russell, P. B.; Schmid, Beat; Redemann, Jens; Dunagan, Stephen; Kluzek, Celine D.; Hubbe, John M.; Segal-Rosenheimer, Michal; Livingston, J. M.; Eck, T.; Wagener, Richard; Gregory, L.; Chand, Duli; Berg, Larry K.; Rogers, Ray; Ferrare, R. A.; Hair, John; Hostetler, Chris A.; Burton, S. P.

2013-11-13T23:59:59.000Z

Note: This page contains sample records for the topic "thickness ft depth" 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

An energy spread correction for ERDA hydrogen depth profiling  

SciTech Connect (OSTI)

A technique for hydrogen depth profiling by reflection elastic recoil detection analysis called the channel-depth conversion was introduced by Verda, et al.' However, the energy spread in elastic recoil detection analysis spectra, which causes a broadening in the energy range and leads to errors in depth profiling, was not addressed by this technique. Here we introduce a technique to addresses this problem, called the energy spread correction. Together, the energy spread correction and the channel-depth conversion techniques comprise the depth profiling method presented in this work.

Verda, R. D. (Raymond D.); Nastasi, Michael Anthony,

2002-01-01T23:59:59.000Z

102

Rolling Thunder -- Integration of the Solo 161 Stirling engine with the CPG-460 solar concentrator at Ft. Huachuca  

SciTech Connect (OSTI)

Project Rolling Thunder is a dish/Stirling demonstration project at Ft. Huachuca, a US Army fort in southeastern Arizona (Huachuca means rolling thunder in Apache). It has been supported by the Strategic Environmental Research and Development Program (SERDP), a cooperative program between the Department of Defense (DoD) and the Department of Energy (DOE). As part of a 1992 SERDP project, Cummins Power Generation, Inc. (CPG) installed a CPG 7 kW(c) dish/Stirling system at the Joint Interoperability Test Command (JITC) in Ft. Huachuca, Arizona. The primary objective of the SERDP Dish/Stirling for DoD Applications project was to demonstrate a CPG 7-kW(c) dish/Stirling system at a military facility. Unfortunately, Cummins Engine Company decided to divest its solar operations. As a direct result of Ft. Huachuca`s interest in the Cummins dish/Stirling technology, Sandia explored the possibility of installing a SOLO 161 Stirling power conversion unit (PCU) on the Ft. Huachuca CPG-460. In January 1997, a decision was made to retrofit a SOLO 161 Stirling engine on the CPG-460 at Ft. Huachuca. Project Rolling Thunder. The SOLO 161 Demonstration at Ft. Huachuca has been a challenge. Although, the SOLO 161 PCU has operated nearly flawlessly and the CPG-460 has been, for the most part, a solid and reliable component, integration of the SOLO PCU with the CPG-460 has required significant attention. In this paper, the integration issues and technical approaches of project Rolling Thunder are presented. Lessons of the project are also discussed.

Diver, R.B.; Moss, T.A.; Goldberg, V.; Thomas, G.; Beaudet, A.

1998-09-01T23:59:59.000Z

103

Top-Down Mass Spectrometry Imaging of Intact Proteins by LAESI FT-ICR MS  

E-Print Network [OSTI]

Laser Ablation Electrospray Ionization is a recent development in mass spectrometry imaging. It has been shown that lipids and small metabolites can be imaged in various samples such as plant material, tissue sections or bacterial colonies without anysample pre-treatment. Further, laser ablation electrospray ionization has been shown to produce multiply charged protein ions from liquids or solid surfaces. This presents a means to address one of the biggest challenges in mass spectrometry imaging; the identification of proteins directly from biological tissue surfaces. Such identification is hindered by the lack of multiply charged proteins in common MALDI ion sources and the difficulty of performing tandem MS on such large, singly charged ions. We present here top-down identification of intact proteins from tissue with a LAESI ion source combined with a hybrid ion-trap FT-ICR mass spectrometer. The performance of the system was first tested with a standard protein with ECD and IRMPD fragmentation to prove the...

Kiss, András; Reschke, Brent R; Powell, Matthew J; Heeren, Ron M A

2013-01-01T23:59:59.000Z

104

Some intriguing properties of Tukey's half-space depth  

E-Print Network [OSTI]

For multivariate data, Tukey's half-space depth is one of the most popular depth functions available in the literature. It is conceptually simple and satisfies several desirable properties of depth functions. The Tukey median, the multivariate median associated with the half-space depth, is also a well-known measure of center for multivariate data with several interesting properties. In this article, we derive and investigate some interesting properties of half-space depth and its associated multivariate median. These properties, some of which are counterintuitive, have important statistical consequences in multivariate analysis. We also investigate a natural extension of Tukey's half-space depth and the related median for probability distributions on any Banach space (which may be finite- or infinite-dimensional) and prove some results that demonstrate anomalous behavior of half-space depth in infinite-dimensional spaces.

Dutta, Subhajit; Chaudhuri, Probal; 10.3150/10-BEJ322

2012-01-01T23:59:59.000Z

105

Global Sediment Thickness Dataset updated for the Australian-Antarctic  

E-Print Network [OSTI]

Global Sediment Thickness Dataset updated for the Australian-Antarctic Southern Ocean Joanne author: jo.whittaker@utas.edu.au Key Points - Global minimum sediment thickness compilation updated for Australia Antarctica - Sediment thicknesses computed from seismic reflection and refraction data - Sediment

MĂĽller, Dietmar

106

Mapping crustal thickness using marine gravity data: Methods and uncertainties  

E-Print Network [OSTI]

of petroleum systems within passive margins. However, direct measurements of crustal thickness are sparse geophysical data, to estimate crustal thickness. We evaluated alternative gravity inversion methodol- ogies, but economic considerations make gravity modeling a more practical approach for mapping crustal thickness over

Müller, Dietmar

107

A microwave resonator for limiting depth sensitivity for electron paramagnetic resonance spectroscopy of surfaces  

SciTech Connect (OSTI)

A microwave Surface Resonator Array (SRA) structure is described for use in Electron Paramagnetic Resonance (EPR) spectroscopy. The SRA has a series of anti-parallel transmission line modes that provides a region of sensitivity equal to the cross-sectional area times its depth sensitivity, which is approximately half the distance between the transmission line centers. It is shown that the quarter-wave twin-lead transmission line can be a useful element for design of microwave resonators at frequencies as high as 10 GHz. The SRA geometry is presented as a novel resonator for use in surface spectroscopy where the region of interest is either surrounded by lossy material, or the spectroscopist wishes to minimize signal from surrounding materials. One such application is in vivo spectroscopy of human finger-nails at X-band (9.5 GHz) to measure ionizing radiation dosages. In order to reduce losses associated with tissues beneath the nail that yield no EPR signal, the SRA structure is designed to limit depth sensitivity to the thickness of the fingernail. Another application, due to the resonator geometry and limited depth penetration, is surface spectroscopy in coating or material science. To test this application, a spectrum of 1.44 ?M of Mg{sup 2+} doped polystyrene 1.1 mm thick on an aluminum surface is obtained. Modeling, design, and simulations were performed using Wolfram Mathematica (Champaign, IL; v. 9.0) and Ansys High Frequency Structure Simulator (HFSS; Canonsburg, PA; v. 15.0). A micro-strip coupling circuit is designed to suppress unwanted modes and provide a balanced impedance transformation to a 50 ? coaxial input. Agreement between simulated and experimental results is shown.

Sidabras, Jason W.; Varanasi, Shiv K.; Hyde, James S. [Department of Biophysics, Medical College of Wisconsin, Milwaukee, Wisconsin 53211 (United States); Mett, Richard R. [Department of Biophysics, Medical College of Wisconsin, Milwaukee, Wisconsin 53211 (United States); Department of Physics and Chemistry, Milwaukee School of Engineering, Milwaukee, Wisconsin 53202 (United States); Swarts, Steven G. [Department of Radiation Oncology, University of Florida, Gainesville, Florida, 32610 (United States); Swartz, Harold M. [Department of Radiology, Geisel Medical School at Dartmouth, Hanover, New Hampshire 03755 (United States)

2014-10-15T23:59:59.000Z

108

Report on the Depth Requirements for a Massive Detector at Homestake  

SciTech Connect (OSTI)

This report provides the technical justification for locating a large detector underground in a US based Deep Underground Science and Engineering Laboratory. A large detector with a fiducial mass greater than 100 kTon will most likely be a multipurpose facility. The main physics justification for such a device is detection of accelerator generated neutrinos, nucleon decay, and natural sources of neutrinos such as solar, atmospheric and supernova neutrinos. The requirement on the depth of this detector will be guided by the rate of signals from these sources and the rate of backgrounds from cosmic rays over a very wide range of energies (from solar neutrino energies of 5 MeV to high energies in the range of tens of GeV). For the present report, we have examined the depth requirement for a large water Cherenkov detector and a liquid argon time projection chamber. There has been extensive previous experience with underground water Cherenkov detectors such as IMB, Kamioka, and most recently, Super-Kamiokande which has a fiducial mass of 22 kTon and a total mass of 50 kTon at a depth of 2700 meters-water-equivalent. Projections for signal and background capability for a larger and deeper (or shallower) detectors of this type can be scaled from these previous detectors. The liquid argon time projection chamber has the advantage of being a very fine-grained tracking detector, which provides enhanced capability for background rejection. In the current work we have taken the approach that the depth should be sufficient to suppress the cosmogenic background below predicted signal rates for either of the above two technologies. Nevertheless, it is also clear that the underground facility that we are examining must have a long life and will most likely be used either for future novel uses of the currently planned detectors or new technologies. Therefore the depth requirement also needs to be made on the basis of sound judgment regarding possible future use. In particular, the depth should be sufficient for any possible future use of these cavities or the level which will be developed for these large structures. Along with these physics justifications there are practical issues regarding the existing infrastructure at Homestake and also the stress characteristics of the Homestake rock formations. In this report we will examine the various depth choices at Homestake from the point of view of the particle and nuclear physics signatures of interest. We also have sufficient information about the existing infrastructure and the rock characteristics to narrow the choice of levels for the development of large cavities with long lifetimes. We make general remarks on desirable ground conditions for such large cavities and then make recommendations on how to start examining these levels to make a final choice. In the appendix we have outlined the initial requirements for the detectors. These requirements will undergo refinement during the course of the design. Finally, we strongly recommend that the geotechnical studies be commenced at the 4850 ft level, which we find to be the most suitable, in a timely manner.

Bernstein,A.; Blucher, E.; Cline, D. B.; Diwan, M. V.; Fleming, b.; Kadel, R.; Kearns, E.; Klein, J.; Lande, K.; Lanni, F.; Lissauer, D.; McKeown, R.; Morse, W.; Radeika, R.; Scholberg, K.; Smy, M.; Sobel, H.; Sullivan, G.; Svoboda, R.; Vagins, M.; Walter, C.; Zwaska, R.

2008-12-22T23:59:59.000Z

109

Report on the Depth Requirements for a Massive Detector at Homestake  

SciTech Connect (OSTI)

This report provides the technical justification for locating a large detector underground in a US based Deep Underground Science and Engineering Laboratory. A large detector with a fiducial mass greater than 100 kTon will most likely be a multipurpose facility. The main physics justification for such a device is detection of accelerator generated neutrinos, nucleon decay, and natural sources of neutrinos such as solar, atmospheric and supernova neutrinos. The requirement on the depth of this detector will be guided by the rate of signals from these sources and the rate of backgrounds from cosmic rays over a very wide range of energies (from solar neutrino energies of 5 MeV to high energies in the range of hundreds of GeV). For the present report, we have examined the depth requirement for a large water Cherenkov detector and a liquid argon time projection chamber. There has been extensive previous experience with underground water Cherenkov detectors such as IMB, Kamioka, and most recently, Super-Kamiokande which has a fiducial mass of 22 kTon and a total mass of 50 kTon at a depth of 2700 meters-water-equivalent in a mountain. Projections for signal and background capability for a larger and deeper(or shallower) detectors of this type can be scaled from these previous detectors. The liquid argon time projection chamber has the advantage of being a very fine-grained tracking detector, which should provide enhanced capability for background rejection. We have based background rejection on reasonable estimates of track and energy resolution, and in some cases scaled background rates from measurements in water. In the current work we have taken the approach that the depth should be sufficient to suppress the cosmogenic background below predicted signal rates for either of the above two technologies. Nevertheless, it is also clear that the underground facility that we are examining must have a long life and will most likely be used either for future novel uses of the currently planned detectors or new technologies. Therefore the depth requirement also needs to be made on the basis of sound judgment regarding possible future use. In particular, the depth should be sufficient for any possible future use of these cavities or the level which will be developed for these large structures.Along with these physics justifications there are practical issues regarding the existing infrastructure at Homestake and also the stress characteristics of the Homestake rock formations. In this report we will examine the various depth choices at Homestake from the point of view of the particle and nuclear physics signatures of interest. We also have sufficient information about the existing infrastructure and the rock characteristics to narrow the choice of levels for the development of large cavities with long lifetimes. We make general remarks on desirable ground conditions for such large cavities and then make recommendations on how to start examining these levels to make a final choice. In the appendix we have outlined the initial requirements for the detectors. These requirements will undergo refinement during the course of the design. Finally, we strongly recommend that the geotechnical studies be commenced at the 4850 ft level, which we find to be the most suitable, in a timely manner.

Kadel, Richard W.; Bernstein, Adam; Blucher, Edward; Cline, David B.; Diwan, Milind V.; Fleming, Bonnie; Kearns, Edward; Klein, Joshua; Lande, Kenneth; Lanni, Francesco; Lissauer, David; McKeown, Robert; Morse, William; Rameika, Regina; Scholberg, Kate; Smy, Michael; Sobel, Henry; Sullivan, Gregory; Svoboda, Robert; Vagins, Mark; Walter, Christopher; Zwaska, Robert

2008-12-23T23:59:59.000Z

110

Ice cap meltdown to cause 22ft floods Ice cap meltdown to cause 22ft floods -Telegraph http://www.telegraph.co.uk/earth/earthnews/3303624/Ice-cap-meltdow...  

E-Print Network [OSTI]

of no return and it were to melt then global sea levels would rise by 22ft and swallow up most of the world sheet. Likewise, global warming may cause a near-permanent El Nino in the Pacific, which would also over animal souvenirs (/earth/main.jhtml?xml=/earth/2007/08/16/eatrade116.xml) Rise of sea levels

Stevenson, Paul

111

Ultrasonic thickness measuring and imaging system and method  

DOE Patents [OSTI]

An ultrasonic thickness measuring and imaging system uses an ultrasonic fsed beam probe for measuring thickness of an object, such as a wall of a tube, a computer for controlling movement of the probe in a scanning pattern within the tube and processing an analog signal produced by the probe which is proportional to the tube wall thickness in the scanning pattern, and a line scan recorder for producing a record of the tube wall thicknesses measured by the probe in the scanning pattern. The probe is moved in the scanning pattern to sequentially scan circumferentially the interior tube wall at spaced apart adjacent axial locations. The computer processes the analog signal by converting it to a digital signal and then quantifies the digital signal into a multiplicity of thickness points with each falling in one of a plurality of thickness ranges corresponding to one of a plurality of shades of grey. From the multiplicity of quantified thickness points, a line scan recorder connected to the computer generates a pictorial map of tube wall thicknesses with each quantified thickness point thus being obtained from a minute area, e.g. 0.010 inch by 0.010 inch, of tube wall and representing one pixel of the pictorial map. In the pictorial map of tube wall thicknesses, the pixels represent different wall thicknesses having different shades of grey.

Bylenok, Paul J. (Clifton Park, NY); Patmos, William M. (Schenectady, NY); Wagner, Thomas A. (Bronswick, NY); Martin, Francis H. (Melrose, NY)

1992-01-01T23:59:59.000Z

112

Flexible Solar-Energy Harvesting System on Plastic with Thin-film LC Oscillators Operating Above ft for  

E-Print Network [OSTI]

Flexible Solar-Energy Harvesting System on Plastic with Thin-film LC Oscillators Operating Above ft- This paper presents an energy-harvesting system consisting of amorphous-silicon (a-Si) solar cells and thin of the energy-harvesting system. The solar module consists of solar cells in series operating at an output

113

FINLANDFINANCIAL TIMES SPECIAL REPORT | Wednesday May 30 2012 www.ft.com/finland-2012 | twitter.com/ftreports  

E-Print Network [OSTI]

FINLANDFINANCIAL TIMES SPECIAL REPORT | Wednesday May 30 2012 www.ft.com/finland-2012 | twitter." Like Greece, Portugal and Ire- land, Finland is on the geo- graphical periphery of the euro- zone in the past two years. Richer, happier and better educated than the OECD rich nations' club average, Finland

Kaski, Samuel

114

Technology development for cobalt F-T catalysts. Quarterly technical progress report No. 5, October 1, 1993--December 31, 1993  

SciTech Connect (OSTI)

The goal of this project is the development of a commercially viable, cobalt-based Fischer-Tropsch (F-T) catalyst for use in a slurry bubble column reactor. Cobalt-based catalysts have long been known as being active for F-T synthesis. They typically possess greater activity than iron-based catalysts, historically the predominant catalyst being used commercially for the conversion of syngas based on coal, but possess two disadvantages that somewhat lessen its value: (1) cobalt tends to make more methane than iron does, and (2) cobalt is less versatile with low H{sub 2}/CO ratio syngas due to its lack of water-gas shift activity. Therefore, the major objectives of this work are (1) to develop a cobalt-based F-T catalyst with low (< 5 %) methane selectivity, (2) to develop a cobalt-based F-T catalyst with water-gas shift activity, and (3) to combine both these improvements into one catalyst. It will be demonstrated that these catalysts have the desired activity, selectivity, and life, and can be made reproducibly. Following this experimental work, a design and a cost estimate will be prepared for a plant to produce sufficient quantities of catalyst for scale-up studies.

Singleton, A.H.

1994-05-31T23:59:59.000Z

115

Directory Home Directory Liaison List Server Help A-Z Index IFAS Main Pa Unit Name: Ft. Lauderdale -REC  

E-Print Network [OSTI]

Directory Home Directory Liaison List Server Help A-Z Index IFAS Main Pa Unit Name: Ft. Lauderdale, and Page 1 of 2Employee and Unit Directory - IFAS - Institute of Food and Agricultural Sciences, University of Flor... 8/13/2013http://directory.ifas.ufl.edu/Dir/searchdir?pageID=2&uid=85 #12;Tampa) 1. Take US-27

Florida, University of

116

Comparative Analysis of the Production Costs and Life-Cycle GHG Emissions of FT-Liquid Fuels from Coal and  

E-Print Network [OSTI]

Coal and Natural Gas Figure S1 shows a graphical description of the life cycle of coal-to-liquids (CTL) and gas-to-liquids (GTL). Figure S1: Life Cycle of Coal-Based and Natural Gas-Based Fischer-Tropsch LiquidComparative Analysis of the Production Costs and Life- Cycle GHG Emissions of FT-Liquid Fuels from

Jaramillo, Paulina

117

Technology development for cobalt F-T catalysts. Quarterly technical progress report No. 8, July 1, 1994--September 30, 1994  

SciTech Connect (OSTI)

The objective of this project is to investigate the influence of various promoters, additives, and supports on minimizing the methane selectivity and increasing the water-gas shift (WGS) activity of cobalt (Co) Fischer-Tropsch (F-T) catalysts. The ultimate goal of this investigation is to identify and demonstrate a catalyst preparation procedure that will be scaled up for the reproducible synthesis of commercial quantities of supported Co catalysts with desired activity, selectivity, and lifetime for use in F-T synthesis in three-phase slurry bubble column reactors. Accomplishments for this quarter are: Four new catalysts were formulated and prepared during this period under both subtasks 1.2 and 1.3 and five more catalysts were prepared by Calsicat; The characterization of all the catalysts in order to determine their physical properties (BET surface area, pore volume, pore size diameter, particle size distribution), as well as the cobalt reducibility, extent of reduction, and dispersion) was continued; Seven new catalysts have been tested for their F-T synthesis performance; An investigation of the effect of pre-treatment (i.e. calcination in static air versus flowing air, direct reduction without prior calcination) of a selected number of catalysts upon their performance for F-T synthesis was continued during this period.

Singleton, A.H.

1995-04-18T23:59:59.000Z

118

Cladding Attachment Over Thick Exterior Insulating Sheathing  

SciTech Connect (OSTI)

The addition of insulation to the exterior of buildings is an effective means of increasing the thermal resistance of both wood framed walls as well as mass masonry wall assemblies. For thick layers of exterior insulation (levels greater than 1.5 inches), the use of wood furring strips attached through the insulation back to the structure has been used by many contractors and designers as a means to provide a convenient cladding attachment location (Straube and Smegal 2009, Pettit 2009, Joyce 2009, Ueno 2010). The research presented in this report is intended to help develop a better understanding of the system mechanics involved and the potential for environmental exposure induced movement between the furring strip and the framing. BSC sought to address the following research questions: 1. What are the relative roles of the mechanisms and the magnitudes of the force that influence the vertical displacement resistance of the system? 2. Can the capacity at a specified deflection be reliably calculated using mechanics based equations? 3. What are the impacts of environmental exposure on the vertical displacement of furring strips attached directly through insulation back to a wood structure?

Baker, P.; Eng, P.; Lepage, R.

2014-01-01T23:59:59.000Z

119

aes depth profile: Topics by E-print Network  

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

California eScholarship Repository Summary: al. , 2005). The vertical profile of wind speed over the seavertical directionality Depth-dependence of wind speedVertical...

120

Bouguer gravity anomalies, depth to bedrock, and shallow temperature...  

Open Energy Info (EERE)

Bouguer gravity anomalies, depth to bedrock, and shallow temperature in the Humboldt House geothermal area, Pershing County, Nevada Jump to: navigation, search OpenEI Reference...

Note: This page contains sample records for the topic "thickness ft depth" 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

Are Cluster Ion Analysis Beams Good Choices for Hydrogen Depth...  

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

Cluster Ion Analysis Beams Good Choices for Hydrogen Depth Profiling Using Time-of-Flight Secondary Ion Mass Spectrometry? Are Cluster Ion Analysis Beams Good Choices for Hydrogen...

122

A Novel 9.4 Tesla FT-ICR Mass Spectrometer with Improved Sensitivity, Mass Resolution, and Mass Range, for Petroleum Heavy Crude Oil Analysis  

E-Print Network [OSTI]

organic mixtures. However, analysis of petroleum crude oil as well as upcoming biofuels requires continued NHMFL 9.4 T FT- species in petroleum crude oil and its products, extending to "heavy" crudes.4 tesla widebore FT-ICR mass spectrometer. Acknowledgements : Include all grant info; e.g. G.S. Boebinger

123

The Galactic thick and thin disks: differences in evolution  

E-Print Network [OSTI]

Recent observations demonstrate that the thin and thick disks of the Galaxy have different chemical abundance trends and evolution timescales. The relative abundances of $\\alpha$-elements in the thick Galactic disk are increased relative to the thin disk. Our goal is to investigate the cause of such differences in thick and thin disk abundances. We investigate the chemical evolution of the Galactic disk in the framework of the open two-zone model with gas inflow. The Galactic abundance trends for $\\alpha$-elements (Mg, Si, O) and Fe are predicted for the thin and thick Galactic disks. The star formation histories of the thin and thick disks must have been different and the gas infall must have been more intense during the thick disk evolution that the thin disk evolution.

T. V. Nykytyuk; T. V. Mishenina

2006-05-26T23:59:59.000Z

124

Bifurcation and Global Dynamical Behavior of the $f(T)$ Theory  

E-Print Network [OSTI]

Usually, in order to investigate the evolution of a theory, one may find the critical points of the system and then perform perturbations around these critical points to see whether they are stable or not. This local method is very useful when the initial values of the dynamical variables are not far away from the critical points. Essentially, the nonlinear effects are totally neglected in such kind of approach. Therefore, one can not tell whether the dynamical system will evolute to the stable critical points or not when the initial values of the variables do not close enough to these critical points. Furthermore, when there are two or more stable critical points in the system, local analysis can not provide the informations that which one the system will finally evolute to. In this paper, we have further developed the nullcline method to study the bifurcation phenomenon and global dynamical behaviour of the $f(T)$ theory. We overcome the shortcoming of local analysis. And it is very clear to see the evolution of the system under any initial conditions.

Chao-Jun Feng; Xin-Zhou Li; Li-Yan Liu

2014-03-18T23:59:59.000Z

125

Project of Aerosol Optical Depth Change in South America  

E-Print Network [OSTI]

AerosolDepth Brazil Bolivia French Guiana Suriname Guyana Venezuela Colombia Ecuador Peru Chile Argentina Suriname Guyana Venezuela Colombia Ecuador Peru Chile Argentina Paraguay Uruguay #12;Statistics of Aerosol M ean D ec 01 to 06 Mean Month AerosolDepth Brazil Bolivia French Guiana Suriname Guyana Venezuela

Frank, Thomas D.

126

Depth, and Motion inVision CMSC 436/636  

E-Print Network [OSTI]

, perceived depth related #12;Head Motion Parallax Bruce and Green 90, p. 231. Kinetic Depth Effect Bruce displacement) #12;Structure from Motion Bruce and Green 90, pg. 328. #12;Image Segmentation Discontinuities Representation techniques parameters #12;Experimental Findings Control necessary for development Held

Rheingans, Penny

127

SEU sensitive depth in a submicron SRAM technology  

SciTech Connect (OSTI)

This work determines experimentally and by simulation the SEU sensitive depth in a 0.6 {micro}m SRAM technology. A good correlation is obtained between the two studies in the case of heavy ions deposing energy close to the critical energy. Other simulation results complete the first investigation by studying the minimum sensitive depth for ions deposing higher energies (at greater LET).

Detcheverry, C.; Bruguier, G.; Palau, J.M.; Gasiot, J. [Univ. Montpellier II (France)] [Univ. Montpellier II (France); Ecoffet, R. [CNES, Toulouse (France)] [CNES, Toulouse (France); Duzellier, S. [DERTS, Toulouse (France)] [DERTS, Toulouse (France); Barak, J.; Lifshitz, Y. [Soreq NRC, Yahvne (Israel)] [Soreq NRC, Yahvne (Israel)

1998-06-01T23:59:59.000Z

128

A Depth Space Approach to Human-Robot Collision Avoidance  

E-Print Network [OSTI]

A Depth Space Approach to Human-Robot Collision Avoidance Fabrizio Flacco Torsten Kr is presented for safe human-robot coexistence. The main contribution is a fast method to evaluate distances between the robot and possibly moving obstacles (including humans), based on the concept of depth space

De Luca, Alessandro

129

On depth and deep points: a calculus Ivan Mizera  

E-Print Network [OSTI]

of Tukey's median) plays a fundamental role similar to that of linear functions in the mathematical (1929) and Chamberlin (1933). For multivariate location, the proposal of Tukey (1975) was developed halfspace or Tukey's depth; for other brands of depth in multivariate location see Liu, Parelius and Singh

Mizera, Ivan

130

Thickness dependent self limiting 1-D tin oxide nanowire arrays...  

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

dependent self limiting 1-D tin oxide nanowire arrays by nanosecond pulsed laser irradiation. Thickness dependent self limiting 1-D tin oxide nanowire arrays by nanosecond pulsed...

131

ag thick film: Topics by E-print Network  

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

applied. Yagi, Kazuyuki 2006-01-01 23 In situ Simultaneous Measurement of Temperature and Thin Film Thickness with Ultrasonic Techniques Engineering Websites Summary: In situ...

132

artery wall thickness: Topics by E-print Network  

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

(CCA-IMT) were measured using ultrasonography. Gait 22 LIFE CYCLE ASSESSMENT OF A HEMP CONCRETE WALL: IMPACT OF THICKNESS AND COATING. Physics Websites Summary: to reduce...

133

Can fusion coefficients be calculated from the depth rule ?  

E-Print Network [OSTI]

The depth rule is a level truncation of tensor product coefficients expected to be sufficient for the evaluation of fusion coefficients. We reformulate the depth rule in a precise way, and show how, in principle, it can be used to calculate fusion coefficients. However, we argue that the computation of the depth itself, in terms of which the constraints on tensor product coefficients is formulated, is problematic. Indeed, the elements of the basis of states convenient for calculating tensor product coefficients do not have a well-defined depth! We proceed by showing how one can calculate the depth in an `approximate' way and derive accurate lower bounds for the minimum level at which a coupling appears. It turns out that this method yields exact results for $\\widehat{su}(3)$ and constitutes an efficient and simple algorithm for computing $\\widehat{su}(3)$ fusion coefficients.

A. N. Kirillov; P. Mathieu; D. Senechal; M. Walton

1992-09-28T23:59:59.000Z

134

Scalable Thick-Film Magnetics: Nano Structured Scalable Thick-Film Magnetics  

SciTech Connect (OSTI)

ADEPT Project: Magnetic components are typically the largest components in a power converter. To date, however, researchers haven't found an effective way to reduce their size without negatively impacting their performance. And, reducing the size of the converter's other components isn't usually an option because shrinking them can also diminish the effectiveness of the magnetic components. GE is developing smaller magnetic components for power converters that maintain high performance levels. The company is building smaller components with magnetic films. These films are created using the condensation of a vaporized form of the magnetic material. It's a purely physical process that involves no chemical reactions, so the film composition is uniform. This process makes it possible to create a millimeter-thick film deposition over a wide surface area fairly quickly, which would save on manufacturing costs. In fact, GE can produce 1-10 millimeter-thick films in hours. The magnetic components that GE is developing for this project could be used in a variety of applications, including solar inverters, electric vehicles, and lighting.

None

2011-01-01T23:59:59.000Z

135

Microphysical and Dynamical Influences on Cirrus Cloud Optical Depth Distributions  

SciTech Connect (OSTI)

Cirrus cloud inhomogeneity occurs at scales greater than the cirrus radiative smoothing scale ({approx}100 m), but less than typical global climate model (GCM) resolutions ({approx}300 km). Therefore, calculating cirrus radiative impacts in GCMs requires an optical depth distribution parameterization. Radiative transfer calculations are sensitive to optical depth distribution assumptions (Fu et al. 2000; Carlin et al. 2002). Using raman lidar observations, we quantify cirrus timescales and optical depth distributions at the Atmospheric Radiation Measurement (ARM) Southern Great Plains (SGP) site in Lamont, OK (USA). We demonstrate the sensitivity of outgoing longwave radiation (OLR) calculations to assumed optical depth distributions and to the temporal resolution of optical depth measurements. Recent work has highlighted the importance of dynamics and nucleation for cirrus evolution (Haag and Karcher 2004; Karcher and Strom 2003). We need to understand the main controls on cirrus optical depth distributions to incorporate cirrus variability into model radiative transfer calculations. With an explicit ice microphysics parcel model, we aim to understand the influence of ice nucleation mechanism and imposed dynamics on cirrus optical depth distributions.

Kay, J.; Baker, M.; Hegg, D.

2005-03-18T23:59:59.000Z

136

M AERIAUXMAGNETIQUES POUR HYPERFREQUENCES THICK FERRITE FILMS BY CHEMICAL TRANSPORT  

E-Print Network [OSTI]

M AERIAUXMAGNETIQUES POUR HYPERFREQUENCES THICK FERRITE FILMS BY CHEMICAL TRANSPORT A. I. BRAGINSKI-Mn ferrite and ferrochrornite films by Chemical Transport Deposi- tion (CTD) [I, 21. This method properties obtained. CTD now appears to be a valuable tool in laboratory preparation of thick ferrite layers

Boyer, Edmond

137

A model for variable thickness superconducting thin lms  

E-Print Network [OSTI]

A model for variable thickness superconducting thin #12;lms S. J. Chapman #3; Mathematical for Applied Mathematics Virginia Tech Blacksburg VA 24061-0531, USA Abstract A model for superconductivity. When the #12;lm is of uniform thickness the model is identical to a model for superconducting cylinders

Chapman, Jon

138

Technology development for cobalt F-T catalysts. Quarterly technical progress report No. 9, October 1, 1994--December 31, 1994  

SciTech Connect (OSTI)

The objective of this Project is to investigate the influence of various promoters, additives, and supports on minimizing the methane selectivity and increasing the water-gas shift (WGS) activity of cobalt (Co) Fischer-Tropsch (F-T) catalysts. The ultimate goal of this investigation is to identify and demonstrate a catalyst preparation Procedure that will be scaled up for the reproducible synthesis of commercial quantities of supported CO catalysts with desired activity, sleectivity, and lifetime for use in F-T synthesis in three-phase slurry bubble column reactors. Seven new catalysts were formulated and prepared during this period under both subtasks 1.2 and 1.3. Two more catalysts were prepared by Calsicat. The characterization of all the catalysts in order to determine their physical properties (BET surface area, pore volume, pore size diameter, particle size distribution), as well as the cobalt reducibility, extent of reduction, and dispersion) was continued. Fixed-bed reactor testing of the catalysts was continued. Six new catalysts were tested for their F-T synthesis performance. An investigation of the effect of pretreatment in various atmospheres (calcination in air or nitrogen prior to reduction in hydrogen, direct reduction without prior calcination, and reductiono)ddation-reduction (ROR)) of a selected number of catalysts upon their performance for F-T synthesis was continued during this period. Under subtask 2.2 during this reporting period a total of 11 runs were made in the two slurry bubble column reactors with eleven catalysts, including five on alumina, two from Calsicat, one WGS blend, and three on silica support. Four high CO conversion runs were made. Data were compiled to compare the CO conversions and product selectivities of the-methane reduction catalysts.

Singleton, A.H.

1995-05-11T23:59:59.000Z

139

Technology development for cobalt F-T catalysts. Quarterly technical progress report number 10, January 1--March 31, 1995  

SciTech Connect (OSTI)

The goal of this project is the development of a commercially-viable, cobalt-based Fischer-Tropsch (F-T) catalyst for use in a slurry bubble column reactor. The major objectives of this work are (1) to develop a cobalt-based F-T catalyst with low (< 5%) methane selectivity, (2) to develop a cobalt-based F-T catalyst with water-gas shift activity, and (3) to combine both these improvements into one catalyst. The project consists of five major tasks: catalyst development; catalyst testing; catalyst reproducibility tests; catalyst aging tests; and preliminary design and cost estimate for a demonstrate scale catalyst production facility. Technical accomplishments during this reporting period include the following. It appears that the higher activity obtained for the catalysts prepared using an organic solution and reduced directly without prior calcination was the result of higher dispersions obtained under such pretreatment. A Ru-promoted Co catalyst on alumina with 30% Co loading exhibited a 4-fold increase in dispersion and a 2-fold increase in activity in the fixed-bed reactor from that obtained with the non-promoted catalyst. Several reactor runs have again focused on pushing conversion to higher levels. The maximum conversion obtained has been 49.7% with 26g catalyst. Further investigations of the effect of reaction temperature on the performance of Co catalysts during F-T synthesis were started using a low activity catalyst and one of the most active catalysts. The three 1 kg catalyst batches prepared by Calsicat for the reproducibility and aging studies were tested in both the fixed-bed and slurry bubble column reactors under the standard reaction conditions. The effects of adding various promoters to some cobalt catalysts have also been addressed. Results are presented and discussed.

Singleton, A.H.

1995-06-28T23:59:59.000Z

140

Technology development for cobalt F-T catalysts. Quarterly technical progress report No. 12, July 1, 1995--September 30, 1995  

SciTech Connect (OSTI)

The investigation of the effect of certain promoters (Fe, Pd, and Ru) on the deactivation characteristics of Co catalysts during F-T synthesis was continued during this reporting period. All catalysts were tested first at 220{degrees}C, then at higher temperatures from 240 to 280{degrees}C, while monitoring their deactivation. The choice of these promoters was based on their intrinsic ability to enhance the hydrogenation reactions while slowing down the Boudouard reaction under the conditions used in F-T synthesis. Olefin hydrogenation and CO dissociation reactions were used individually to investigate further the nature of the deactivation process of these catalyst during F-T synthesis. Hydrogenation of isobutene (IB) was carried out in the presence of CO between 120 and 180{degrees}C and atmospheric pressure. CO dissociation activities of the catalysts were measured using a pulse technique at 2.5 atm and at temperatures between 180 and 280{degrees}C with intermittent H{sub 2} bracketing at 350{degrees}C. Promotion with high loadings of Fe or Pd resulted in catalysts with relatively lower activity and higher methane selectivity. The deactivation process and rate for catalysts containing Pd or Fe were similar to those of the non-promoted or Ru-promoted alumina-supported Co catalysts tested previously. The only exception was Co.068 with 1% Pd which had adequate activity and selectivity as well as lower deactivation rate at the various temperatures tested.

Singleton, A.H.

1996-03-21T23:59:59.000Z

Note: This page contains sample records for the topic "thickness ft depth" 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

Born-Infeld and Charged Black Holes with non-linear source in $f(T)$ Gravity  

E-Print Network [OSTI]

We investigate $f(T)$ theory coupled with a nonlinear source of electrodynamics, for a spherically symmetric and static spacetime in $4D$. We re-obtain the Born-Infeld and Reissner-Nordstrom-AdS solutions. We generalize the no-go theorem for any content that obeys the relationship $\\mathcal{T}^{\\;\\;0}_{0}=\\mathcal{T}^{\\;\\;1}_{1}$ for the energy-momentum tensor and a given set of tetrads. Our results show new classes of solutions where the metrics are related through $b(r)=-Na(r)$. We do the introductory analysis showing that solutions are that of asymptotically flat black holes, with a singularity at the origin of the radial coordinate, covered by a single event horizon. We also reconstruct the action for this class of solutions and obtain the functional form $f(T) = f_0\\left(-T\\right)^{(N+3)/[2(N+1)]}$ and $\\mathcal{L}_{NED} = \\mathcal{L}_0\\left(-F\\right)^{(N+3)/[2(N+1)]}$. Using the Lagrangian density of Born-Infeld, we obtain a new class of charged black holes where the action reads $f(T) = -16\\beta_{BI} \\...

Junior, Ednaldo L B; Houndjo, Mahouton J S

2015-01-01T23:59:59.000Z

142

High Mass Accuracy and High Mass Resolving Power FT-ICR Secondary Ion Mass  

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: Vegetation ProposedUsingFun withconfinement plasmas in the Madison SymmetricHigh Carbon|1-3, m =

143

FT-ICR MS optimization for the analysis of intact proteins. | EMSL  

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: Vegetation ProposedUsing ZirconiaPolicy andExsolutionFES Committees of9,of Energy8 CH2MNewsFROMFT-ICR

144

Improving CID, HCD, and ETD FT MS/MS degradome-peptidome identifications  

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: Vegetation ProposedUsingFun withconfinementEtching.348 270 300 219Improvements to the SHDOM

145

Effectiveness of CID, HCD, and ETD with FT MS/MS for degradomic-peptidomic  

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: Vegetation Proposed NewcatalystNeutronEnvironmentZIRKLE FRUITYearEffect0/2002 Yun (Helen) He,analysis:

146

DE-AT26-97FT34342 | netl.doe.gov  

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: Vegetation Proposed Newcatalyst phases onOrganization FY 2012JDA 1/31/13 JanReport0 3New

147

DE-AT26-97FT34343 | netl.doe.gov  

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: Vegetation Proposed Newcatalyst phases onOrganization FY 2012JDA 1/31/13 JanReport0 3NewGathering,

148

DE-AT26-97FT34344 | netl.doe.gov  

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: Vegetation Proposed Newcatalyst phases onOrganization FY 2012JDA 1/31/13 JanReport0

149

DE-AT26-99FT40267 | netl.doe.gov  

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: Vegetation Proposed Newcatalyst phases onOrganization FY 2012JDA 1/31/13 JanReport0Mechanical Testing of

150

Microsoft Word - 12.18.13 NEPA UK FT DSEA draft DearReaderLtr.docx  

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 andMapping RichlandScatteringWater Vapor77William.Gwilliam@netl.doe.gov ď‚·

151

Collisional Activation of Peptide Ions in FT-ICR Mass Spectrometry. | EMSL  

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: Vegetation Proposed New SubstationClean Communities ofCellulosic(SNfactory) | DOEat WINDPOWER |I MPACTS

152

Commercial Scale Coal to F-T Liquid Plant Using a Dry Feed Gasifier  

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: Vegetation Proposed New SubstationClean CommunitiesEFRCInformationBaseline for Fossil Energy Plants

153

Problem 2.67: A gas undergoes a process from State 1, where p1 = 60 lbf/in2 & v1 = 6:0 ft3  

E-Print Network [OSTI]

Problem 2.67: A gas undergoes a process from State 1, where p1 = 60 lbf/in2 & v1 = 6:0 ft3 /lbm...c volume, & internal energy is u = 0:2651 BTU-in2 lbf-ft3 pv 95:436 BTU lbm where p is in lbf/in2 , v is in ft3 /lbm, & u is in BTU/lbm. The mass of gas is 10 lbm. Neglecting kinetic- and potential-energy e

154

Depth-resolved confocal micro-Raman spectroscopy for characterizing GaN-based light emitting diode structures  

SciTech Connect (OSTI)

In this work, we demonstrate that depth-resolved confocal micro-Raman spectroscopy can be used to characterize the active layer of GaN-based LEDs. By taking the depth compression effect due to refraction index mismatch into account, the axial profiles of Raman peak intensities from the GaN capping layer toward the sapphire substrate can correctly match the LED structural dimension and allow the identification of unique Raman feature originated from the 0.3 ?m thick active layer of the studied LED. The strain variation in different sample depths can also be quantified by measuring the Raman shift of GaN A{sub 1}(LO) and E{sub 2}(high) phonon peaks. The capability of identifying the phonon structure of buried LED active layer and depth-resolving the strain distribution of LED structure makes this technique a potential optical and remote tool for in operando investigation of the electronic and structural properties of nitride-based LEDs.

Chen, Wei-Liang; Lee, Yu-Yang; Chang, Yu-Ming, E-mail: ymchang@ntu.edu.tw [Center for Condensed Matter Sciences, National Taiwan University, 10617 Taipei, Taiwan (China)] [Center for Condensed Matter Sciences, National Taiwan University, 10617 Taipei, Taiwan (China); Chang, Chiao-Yun; Huang, Huei-Min; Lu, Tien-Chang [Department of Photonics, National Chiao Tung University, 30010 Hsinchu, Taiwan (China)] [Department of Photonics, National Chiao Tung University, 30010 Hsinchu, Taiwan (China)

2013-11-15T23:59:59.000Z

155

Variations in microbial community composition through two soil depth profiles  

E-Print Network [OSTI]

35% of the total quantity of microbial biomass found in the top 2 m of soil is found below a depth: Microbial diversity; Phospholipid fatty acid; Soil profile; Community composition; Microbial biomass 1

Fierer, Noah

156

Understanding Fault Characteristics And Sediment Depth For Geothermal...  

Open Energy Info (EERE)

Fault Characteristics And Sediment Depth For Geothermal Exploration Using 3D Gravity Inversion In Walker Valley, Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to...

157

Next Generation Nuclear Plant Defense-in-Depth Approach  

SciTech Connect (OSTI)

The purpose of this paper is to (1) document the definition of defense-in-depth and the pproach that will be used to assure that its principles are satisfied for the NGNP project and (2) identify the specific questions proposed for preapplication discussions with the NRC. Defense-in-depth is a safety philosophy in which multiple lines of defense and conservative design and evaluation methods are applied to assure the safety of the public. The philosophy is also intended to deliver a design that is tolerant to uncertainties in knowledge of plant behavior, component reliability or operator performance that might compromise safety. This paper includes a review of the regulatory foundation for defense-in-depth, a definition of defense-in-depth that is appropriate for advanced reactor designs based on High Temperature Gas-cooled Reactor (HTGR) technology, and an explanation of how this safety philosophy is achieved in the NGNP.

Edward G. Wallace; Karl N. Fleming; Edward M. Burns

2009-12-01T23:59:59.000Z

158

Depth-resolved cathodoluminescence spectroscopy of silicon supersaturated with sulfur  

E-Print Network [OSTI]

We investigate the luminescence of Si supersaturated with S (Si:S) using depth-resolved cathodoluminescence spectroscopy and secondary ion mass spectroscopy as the S concentration is varied over 2 orders of magnitude ...

Fabbri, Filippo

159

Method and apparatus to measure the depth of skin burns  

DOE Patents [OSTI]

A new device for measuring the depth of surface tissue burns based on the rate at which the skin temperature responds to a sudden differential temperature stimulus. This technique can be performed without physical contact with the burned tissue. In one implementation, time-dependent surface temperature data is taken from subsequent frames of a video signal from an infrared-sensitive video camera. When a thermal transient is created, e.g., by turning off a heat lamp directed at the skin surface, the following time-dependent surface temperature data can be used to determine the skin burn depth. Imaging and non-imaging versions of this device can be implemented, thereby enabling laboratory-quality skin burn depth imagers for hospitals as well as hand-held skin burn depth sensors the size of a small pocket flashlight for field use and triage.

Dickey, Fred M. (Albuquerque, NM); Holswade, Scott C. (Albuquerque, NM)

2002-01-01T23:59:59.000Z

160

Aerosol Optical Depth Value-Added Product Report  

SciTech Connect (OSTI)

This document describes the process applied to retrieve aerosol optical depth (AOD) from multifilter rotating shadowband radiometers (MFRSR) and normal incidence multifilter radiometers (NIMFR) operated at the ARM Climate Research Facility’s ground-based facilities.

Koontz, A; Hodges, G; Barnard, J; Flynn, C; Michalsky, J

2013-03-17T23:59:59.000Z

Note: This page contains sample records for the topic "thickness ft depth" 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

aerosol optical depths: Topics by E-print Network  

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

AERONET, AVHRR and 3 MODIS 4 A. Hauser, D. Oesch have been used to 9 retrieve the spatial distribution of aerosol optical depth for 10 central Europe. At eight AERONET sites,...

162

aerosol optical depth: Topics by E-print Network  

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

AERONET, AVHRR and 3 MODIS 4 A. Hauser, D. Oesch have been used to 9 retrieve the spatial distribution of aerosol optical depth for 10 central Europe. At eight AERONET sites,...

163

Case depth verification of hardened samples with Barkhausen noise sweeps  

SciTech Connect (OSTI)

An interesting topic of recent Barkhausen noise (BN) method studies is the application of the method to case depth evaluation of hardened components. The utilization of BN method for this purpose is based on the difference in the magnetic properties between the hardened case and the soft core. Thus, the detection of case depth with BN can be achieved. The measurements typically have been carried out by using low magnetizing frequencies which have deeper penetration to the ferromagnetic samples than the conventional BN measurement. However, the penetration depth is limited due to eddy current damping of the signal. We introduce here a newly found sweep measurement concept for the case depth evaluation. In this study sweep measurements were carried out with various magnetizing frequencies and magnetizing voltages to detect the effect of different frequency and voltage and their correspondence to the actual case depth values verified from destructive characterization. Also a BN measurement device that has an implemented sweep analysis option was utilised. The samples were either induction or case-hardened samples and sample geometry contained both rod samples and gear axle samples with different case depth values. Samples were also further characterized with Xray diffraction to study the residual stress state of the surface. The detailed data processing revealed that also other calculated features than the maximum slope division of the 1st derivative of the BN signal could hold the information about the case depth value of the samples. The sweep method was able to arrange the axles into correct order according to the case depth value even though the axles were used.

Santa-aho, Suvi; Vippola, Minnamari; Lepistö, Toivo [Tampere University of Technology, Department of Materials Science, P.O. Box 589, 33101 Tampere (Finland); Hakanen, Merja [Stresstech Oy, Tikkutehtaantie 1, 40800 Vaajakoski (Finland); Sorsa, Aki; Leiviskä, Kauko [University of Oulu, Control Engineering Laboratory, P.O. Box 4300, FIN-90014 University of Oulu (Finland)

2014-02-18T23:59:59.000Z

164

Burial depth and stratigraphic controls on shale diagenesis  

E-Print Network [OSTI]

- layer illite/smectite in Gulf Coast sediments at a shallow depth is a randomly-interstratified illite/smectite with proportions of 804 smectite and 20% illite (Perry and Hower, 1972). Many authors (Dunoyer de Segonzac, 1970; Perry and Hower, 1970..., 1972; Hower et al. , 1976; Foscolos and Kodama, 1974) have noted the increase in illite with concurrent decrease of smectite in the mixed-layer illite/smec- tite with increasing depth and temperature. The conversion of smectite into illite resulting...

Moore, David Wesley

1983-01-01T23:59:59.000Z

165

Prediction of sinkage depth of footings on soft marine sediments  

E-Print Network [OSTI]

PREDICTION OF SINKAGE DEPTH OF FOOTINGS ON SOFT MARINE SEDIMENTS A Thesis by SHIHCHIEH YEN Submitted to the Office of Graduate Studies of Texas ARM University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE... December 1990 Major Subject: Civil Engineering PREDICTION OF SINKAGE DEPTH OF FOOTINGS ON SOFI' MARINE SEDIMENTS A Thesis by Approved as to style and content by: ayne A. Dunla (Chair of Committee) Derek V. Morr (Member) William R. Bry nt (Member...

Yen, Shihchieh

1990-01-01T23:59:59.000Z

166

Apparatus and method for measuring the thickness of a coating  

DOE Patents [OSTI]

An apparatus and method for measuring the thickness of a coating adhered to a substrate. An electromagnetic acoustic transducer is used to induce surface waves into the coating. The surface waves have a selected frequency and a fixed wavelength. Interpolation is used to determine the frequency of surface waves that propagate through the coating with the least attenuation. The phase velocity of the surface waves having this frequency is then calculated. The phase velocity is compared to known phase velocity/thickness tables to determine the thickness of the coating.

Carlson, Nancy M. (Idaho Falls, ID); Johnson, John A. (Idaho Falls, ID); Tow, David M. (Idaho Falls, ID); Walter, John B (Idaho Falls, ID)

2002-01-01T23:59:59.000Z

167

Friction of a slider on a granular layer: Non-monotonic thickness dependence and effect of boundary conditions  

E-Print Network [OSTI]

We investigate the effective friction encountered by a mass sliding on a granular layer as a function of bed thickness and boundary roughness conditions. The observed friction has minima for a small number of layers before it increases and saturates to a value which depends on the roughness of the sliding surface. We use an index-matched interstitial liquid to probe the internal motion of the grains with fluorescence imaging in a regime where the liquid has no significant effect on the measured friction. The shear profiles obtained as a function of depth show decrease in slip near the sliding surface as the layer thickness is increased. We propose that the friction depends on the degree of grain confinement relative to the sliding surfaces.

Saloome Siavoshi; Ashish V. Orpe; Arshad Kudrolli

2005-12-22T23:59:59.000Z

168

Expression of proliferative and inflammatory markers in a full-thickness human skin equivalent following exposure to the model sulfur mustard vesicant, 2-chloroethyl ethyl sulfide  

SciTech Connect (OSTI)

Sulfur mustard is a potent vesicant that induces inflammation, edema and blistering following dermal exposure. To assess molecular mechanisms mediating these responses, we analyzed the effects of the model sulfur mustard vesicant, 2-chloroethyl ethyl sulfide, on EpiDerm-FT{sup TM}, a commercially available full-thickness human skin equivalent. CEES (100-1000 {mu}M) caused a concentration-dependent increase in pyknotic nuclei and vacuolization in basal keratinocytes; at high concentrations (300-1000 {mu}M), CEES also disrupted keratin filament architecture in the stratum corneum. This was associated with time-dependent increases in expression of proliferating cell nuclear antigen, a marker of cell proliferation, and poly(ADP-ribose) polymerase (PARP) and phosphorylated histone H2AX, markers of DNA damage. Concentration- and time-dependent increases in mRNA and protein expression of eicosanoid biosynthetic enzymes including COX-2, 5-lipoxygenase, microsomal PGE{sub 2} synthases, leukotriene (LT) A{sub 4} hydrolase and LTC{sub 4} synthase were observed in CEES-treated skin equivalents, as well as in antioxidant enzymes, glutathione S-transferases A1-2 (GSTA1-2), GSTA3 and GSTA4. These data demonstrate that CEES induces rapid cellular damage, cytotoxicity and inflammation in full-thickness skin equivalents. These effects are similar to human responses to vesicants in vivo and suggest that the full thickness skin equivalent is a useful in vitro model to characterize the biological effects of mustards and to develop potential therapeutics.

Black, Adrienne T. [Pharmacology and Toxicology, Rutgers University, Piscataway, NJ (United States); Hayden, Patrick J. [MatTek Corporation, Ashland, MA (United States); Casillas, Robert P. [Battelle Memorial Institute, Columbus, OH (United States); Heck, Diane E. [Environmental Health Sciences, New York Medical College, Valhalla, NY (United States); Gerecke, Donald R. [Pharmacology and Toxicology, Rutgers University, Piscataway, NJ (United States); Sinko, Patrick J. [Pharmaceutics, Rutgers University, Piscataway, NJ (United States); Laskin, Debra L. [Pharmacology and Toxicology, Rutgers University, Piscataway, NJ (United States); Laskin, Jeffrey D., E-mail: jlaskin@eohsi.rutgers.ed [Environmental and Occupational Medicine, UMDNJ-Robert Wood Johnson Medical School, Piscataway, NJ (United States)

2010-12-01T23:59:59.000Z

169

Reactor physics assessment of thick silicon carbide clad PWR fuels  

E-Print Network [OSTI]

High temperature tolerance, chemical stability and low neutron affinity make silicon carbide (SiC) a potential fuel cladding material that may improve the economics and safety of light water reactors (LWRs). "Thick" SiC ...

Bloore, David A. (David Allan)

2013-01-01T23:59:59.000Z

170

Study of pipe thickness loss using a neutron radiography method  

SciTech Connect (OSTI)

The purpose of this preliminary work is to study for thickness changes in objects using neutron radiography. In doing the project, the technique for the radiography was studied. The experiment was done at NUR-2 facility at TRIGA research reactor in Malaysian Nuclear Agency, Malaysia. Test samples of varying materials were used in this project. The samples were radiographed using direct technique. Radiographic images were recorded using Nitrocellulose film. The films obtained were digitized to processed and analyzed. Digital processing is done on the images using software Isee!. The images were processed to produce better image for analysis. The thickness changes in the image were measured to be compared with real thickness of the objects. From the data collected, percentages difference between measured and real thickness are below than 2%. This is considerably very low variation from original values. Therefore, verifying the neutron radiography technique used in this project.

Mohamed, Abdul Aziz; Wahab, Aliff Amiru Bin [Universiti Tenaga Nasional, Jalan IKRAM-UNITEN, 43000 Kajang, Selangor (Malaysia); Yazid, Hafizal B.; Ahmad, Megat Harun Al Rashid B. Megat; Jamro, Rafhayudi B.; Azman, Azraf B.; Zin, Muhamad Rawi Md; Idris, Faridah Mohamad [Malaysian Nuclear Agency, Bangi, 43000 Kajang, Selangor (Malaysia)

2014-02-12T23:59:59.000Z

171

SLUG TESTING IN WELLS WITH FINITE-THICKNESS SKIN  

SciTech Connect (OSTI)

We present an analysis of the slug test in a well surrounded by an annulus of altered material, which is treated as a skin of finite thickness. By assuming the skin has a thickness, the storage capacity of the altered material is included in the analysis. The problem is solved in the Laplace domain. The solution is found in terms of well-bore storage and the thickness, hydraulic conductivity, and specific storage of the skin. Type curves are generated by numerical inversion of the Laplace transform solution. We find that standard methods of analysis, involving a skin of infinitesimal thickness, are adequate for open-well or drill-stem tests. However, for pressurized tests the response may differ markedly from standard slug-test solutions.

Moench, A.F.; Hsieh

1985-01-22T23:59:59.000Z

172

airway wall thickness: Topics by E-print Network  

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

18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 21 LIFE CYCLE ASSESSMENT OF A HEMP CONCRETE WALL: IMPACT OF THICKNESS AND COATING. Physics Websites Summary: to reduce...

173

Measuring depth profiles of residual stress with Raman spectroscopy  

SciTech Connect (OSTI)

Knowledge of the variation of residual stress is a very important factor in understanding the properties of machined surfaces. The nature of the residual stress can determine a part`s susceptibility to wear deformation, and cracking. Raman spectroscopy is known to be a very useful technique for measuring residual stress in many materials. These measurements are routinely made with a lateral resolution of 1{mu}m and an accuracy of 0.1 kbar. The variation of stress with depth; however, has not received much attention in the past. A novel technique has been developed that allows quantitative measurement of the variation of the residual stress with depth with an accuracy of 10nm in the z direction. Qualitative techniques for determining whether the stress is varying with depth are presented. It is also demonstrated that when the stress is changing over the volume sampled, errors can be introduced if the variation of the stress with depth is ignored. Computer aided data analysis is used to determine the depth dependence of the residual stress.

Enloe, W.S.; Sparks, R.G.; Paesler, M.A.

1988-12-01T23:59:59.000Z

174

Penetration depth scaling for impact into wet granular packings  

E-Print Network [OSTI]

We present experimental measurements of penetration depths for the impact of spheres into wetted granular media. We observe that the penetration depth in the liquid saturated case scales with projectile density, size, and drop height in a fashion consistent with the scaling observed in the dry case, but that penetration depths into saturated packings tend to be smaller. This result suggests that, for the range of impact energies observed, the stopping force is set by static contact forces between grains within the bed, and that the presence of liquid serves, primarily, to enhance these contact forces. The enhancement to the stopping force has a complicated dependence on liquid fraction, accompanied by a change in the drop-height dependence, that must be the consequence of accompanying changes in the conformation of the liquid phase in the interstices.

Theodore A. Brzinski III; Jorin Schug; Kelly Mao; Douglas J. Durian

2015-01-25T23:59:59.000Z

175

Decommissioning samples from the Ft. Lewis, WA, solvent refined coal pilot plant: chemical analysis and biological testing  

SciTech Connect (OSTI)

This report presents the results from chemical analyses and limited biological assays of three sets of samples from the Ft. Lewis, WA solvent refined coal (SRC) pilot plant. The samples were collected during the process of decommissioning this facility. Chemical composition was determined for chemical class fractions of the samples by using high-resolution gas chromatography (GC), high-resolution GC/mass spectrometry (MS) and high-resolution MS. Biological activity was measuring using both the histidine reversion microbial mutagenicity assay with Salmonella typhimurium, TA98 and an initiation/promotion mouse-skin tumorigenicity assay. 19 refs., 7 figs., 27 tabs.

Weimer, W.C.; Wright, C.W.

1985-10-01T23:59:59.000Z

176

Isotopic effect study in the LHCD and LHH experiments in hydrogen/deuterium plasmas of the FT-2 tokamak  

SciTech Connect (OSTI)

Results of comparative experimental studies of the efficiency of lower hybrid current drive (LHCD) and lower hybrid heating (LHH) in the FT-2 tokamak in hydrogen and deuterium plasmas are presented. In the new comparative experimental runs in deuterium/hydrogen plasmas suppression of the LHCD and beginning of the interaction of LH waves with ions is controlled by the plasma density rise. Role of parametric instabilities in CD switch-off is considered. In order to analyze the experimentally observed effect of LHCD the GRILL3D and FRTC codes has been used.

Lashkul, S. I.; Altukhov, A. B.; Gusakov, E. Z.; Dyachenko, V. V.; Esipov, L. A.; Irzak, M. A.; Kantor, M. Yu.; Kouprienko, D. V.; Saveliev, A. N. [A. F. Ioffe Physical-Technical Institute, Politekhnicheskaya 26, 194021, St. Petersburg (Russian Federation); Shatalin, S. V. [St. Petersburg State Polytekhnical University, St. Petersburg (Russian Federation); Stepanov, A. Yu. [A.F. Ioffe Physical-Technical Institute, Politekhnicheskaya 26, 194021, St. Petersburg (Russian Federation)

2014-02-12T23:59:59.000Z

177

Cone Depth and the Center Vertex Theorem Gary L. Miller Todd Phillips Don Sheehy  

E-Print Network [OSTI]

Abstract We generalize the Tukey depth to use cones instead of halfspaces. We prove a generalization of the most enduring definitions of data depth is the Tukey depth, also known as the half-space depth. The Tukey depth of a point p relative to a point set S is defined as the minimum number of points on one

Miller, Gary L.

178

Continuous Snow Depth, Intensive Site 1, Barrow, Alaska  

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

Continuous Snow depth data are being collected at several points within four intensive study areas in Barrow, Alaska. These data are being collected to better understand the energy dynamics above the active layer and permafrost. They complement in-situ snow and soil measurements at this location. The data could also be used as supporting measurements for other research and modeling activities.

Cable, William; Romanovsky, Vladimir; Hinzman, Larry; Busey, Bob

179

7 Predictive Risk Mapping of Water Table Depths in  

E-Print Network [OSTI]

, and so risks of water shortage appear. The preservation of these resources is important because73 7 Predictive Risk Mapping of Water Table Depths in a Brazilian Cerrado Area R. L. Manzione, M metabolize throughout the year, drawing on soil water reserves, and can withstand short-lived fires. contents

Camara, Gilberto

180

Steady periodic waves bifurcating for fixed-depth rotational flows  

E-Print Network [OSTI]

-current interactions [29, 37] or flows generated by wind-shear [30] (see [6] for a comprehensive discussion than the mass-flux. It is important to note that fixing the mass-flux p0 does not fix the depth d

Note: This page contains sample records for the topic "thickness ft depth" 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

Continuous Snow Depth, Intensive Site 1, Barrow, Alaska  

SciTech Connect (OSTI)

Continuous Snow depth data are being collected at several points within four intensive study areas in Barrow, Alaska. These data are being collected to better understand the energy dynamics above the active layer and permafrost. They complement in-situ snow and soil measurements at this location. The data could also be used as supporting measurements for other research and modeling activities.

Cable, William; Romanovsky, Vladimir; Hinzman, Larry; Busey, Bob

2014-11-06T23:59:59.000Z

182

Parameterised structured light imaging for depth edge detection  

E-Print Network [OSTI]

, [amin, amax], from the projector/camera', `width of horizontal stripes, w', and `minimum detectable depth difference, rmin'. As can be seen in Fig. 1a, amax and rmin are given as the input parameters of [amin, amax] are guaranteed to be detected. However, awkwardly enough, amin is found at a later step

California at Santa Barbara, University of

183

WaveCurrent Interactions in Finite Depth JEROME A. SMITH  

E-Print Network [OSTI]

Wave­Current Interactions in Finite Depth JEROME A. SMITH Scripps Institution of Oceanography, La (Longuet-Higgins 1969; Hasselmann 1971; Garrett and Smith 1976; and many others). In particular, Hassel) changes in wave momentum that absorb some of the radiation stress gradients. Garrett and Smith (1976

Smith, Jerome A.

184

Correction to “Hyperspectral Aerosol Optical Depths from TCAP Flights”  

SciTech Connect (OSTI)

In the paper “Hyperspectral aerosol optical depths from TCAP flights” by Y. Shinozuka et al. (Journal of Geophysical Research: Atmospheres, 118, doi:10.1002/2013JD020596, 2013), Tables 1 and 2 were published with the column heads out of order. Tables 1 and 2 are published correctly here. The publisher regrets the error.

Shinozuka, Yohei; Johnson, Roy R.; Flynn, Connor J.; Russell, P. B.; Schmid, Beat; Redemann, Jens; Dunagan, Stephen; Kluzek, Celine D.; Hubbe, John M.; Segal-Rosenheimer, Michal; Livingston, J. M.; Eck, T.; Wagener, Richard; Gregory, L.; Chand, Duli; Berg, Larry K.; Rogers, Ray; Ferrare, R. A.; Hair, John; Hostetler, Chris A.; Burton, S. P.

2014-02-16T23:59:59.000Z

185

Wave-current interaction in water of finite depth  

E-Print Network [OSTI]

In this thesis, the nonlinear interaction of waves and current in water of finite depth is studied. Wind is not included. In the first part, a 2D theory for the wave effect on a turbulent current over rough or smooth bottom ...

Huang, Zhenhua, 1967-

2004-01-01T23:59:59.000Z

186

Microsoft PowerPoint - GradedApproach_P&RA_CoP_December2013 ...  

Office of Environmental Management (EM)

f hi "A" for geographic area "A" Depth (ft) Elevation (ft) Geologic Unit Description Hydraulic Property Type Soil Type K Zone (ft) (ft) Geologic Unit Description Property Type...

187

Influence of compensator thickness, field size, and off-axis distance on the effective attenuation coefficient of a cerrobend compensator for intensity-modulated radiation therapy  

SciTech Connect (OSTI)

Intensity-modulated radiation therapy (IMRT) can be performed by using compensators. To make a compensator for an IMRT practice, it is required to calculate the effective attenuation coefficient (?{sub eff}) of its material, which is affected by various factors. We studied the effect of the variation of the most important factors on the calculation of the ?{sub eff} of the cerrobend compensator for 6-MV photon beams, including the field size, compensator thickness, and off-axis distance. Experimental measurements were carried out at 100 cm source-to-surface distance and 10 cm depth for the 6-MV photon beams of an Elekta linac using various field size, compensator thickness, and off-axis settings. The field sizes investigated ranged from 4 × 4 to 25 × 25 cm{sup 2} and the cerrobend compensator thicknesses from 0.5–6 cm. For a fixed compensator thickness, variation of the ?{sub eff} with the field size ranged from 3.7–6.8%, with the highest value attributed to the largest compensator thickness. At the reference field size of 10 × 10 cm{sup 2}, the ?{sub eff} varied by 16.5% when the compensator thickness was increased from 0.5–6 cm. However, the variation of the ?{sub eff} with the off-axis distance was only 0.99% at this field size, whereas for the largest field size, it was more significant. Our results indicated that the compensator thickness and field size have the most significant effect on the calculation of the compensator ?{sub eff} for the 6-MV photon beam. Therefore, it is recommended to consider these parameters when calculating the compensator thickness for an IMRT practice designed for these beams. The off-axis distance had a significant effect on the calculation of the ?{sub eff} only for the largest field size. Hence, it is recommended to consider the effect of this parameter only for field sizes larger than 25 × 25 cm{sup 2}.

Haghparast, Abbas [Department of Medical Physics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Islamic Republic of Iran (Iran, Islamic Republic of); Hashemi, Bijan, E-mail: bhashemi@modares.ac.ir [Department of Medical Physics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Islamic Republic of Iran (Iran, Islamic Republic of); Eivazi, Mohammad Taghi [Department of Medical Physics, Faculty of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Islamic Republic of Iran (Iran, Islamic Republic of)

2013-04-01T23:59:59.000Z

188

Deuterium Depth Profile in Neutron-Irradiated Tungsten Exposed to Plasma  

SciTech Connect (OSTI)

The effect of radiation damage has been mainly simulated using high-energy ion bombardment. The ions, however, are limited in range to only a few microns into the surface. Hence, some uncertainty remains about the increase of trapping at radiation damage produced by 14 MeV fusion neutrons, which penetrate much farther into the bulk material. With the Japan-US joint research project: Tritium, Irradiations, and Thermofluids for America and Nippon (TITAN), the tungsten samples (99.99 % pure from A.L.M.T., 6mm in diameter, 0.2mm in thickness) were irradiated to high flux neutrons at 50 C and to 0.025 dpa in the High Flux Isotope Reactor (HFIR) at the Oak Ridge National Laboratory (ORNL). Subsequently, the neutron-irradiated tungsten samples were exposed to a high-flux deuterium plasma (ion flux: 1021-1022 m-2s-1, ion fluence: 1025-1026 m-2) in the Tritium Plasma Experiment (TPE) at the Idaho National Laboratory (INL). First results of deuterium retention in neutron-irradiated tungsten exposed in TPE have been reported previously. This paper presents the latest results in our on-going work of deuterium depth profiling in neutron-irradiated tungsten via nuclear reaction analysis. The experimental data is compared with the result from non neutron-irradiated tungsten, and is analyzed with the Tritium Migration Analysis Program (TMAP) to elucidate the hydrogen isotope behavior such as retention and depth distribution in neutron-irradiated and non neutron-irradiated tungsten.

Masashi Shimada; G. Cao; Y. Hatano; T. Oda; Y. Oya; M. Hara; P. Calderoni

2011-05-01T23:59:59.000Z

189

Method and apparatus for thickness measurement using microwaves  

DOE Patents [OSTI]

The method for measuring the thickness of a material which transmits a detectable amount of microwave radiation includes irradiating the material with coherent microwave radiation tuned over a frequency range. Reflected microwave radiation is detected, the reflected radiation having maxima and minima over the frequency range as a result of coherent interference of microwaves reflected from reflecting surfaces of the material. The thickness of the material is determined from the period of the maxima and minima along with knowledge of the index of refraction of the material.

Woskov, Paul (Bedford, MA) [Bedford, MA; Lamar, David A. (West Richland, WA) [West Richland, WA

2001-01-01T23:59:59.000Z

190

Process for manufacture of thick film hydrogen sensors  

DOE Patents [OSTI]

A thick film process for producing hydrogen sensors capable of sensing down to a one percent concentration of hydrogen in carrier gasses such as argon, nitrogen, and air. The sensor is also suitable to detect hydrogen gas while immersed in transformer oil. The sensor includes a palladium resistance network thick film printed on a substrate, a portion of which network is coated with a protective hydrogen barrier. The process utilizes a sequence of printing of the requisite materials on a non-conductive substrate with firing temperatures at each step which are less than or equal to the temperature at the previous step.

Perdieu, Louisa H. (Overland Park, KS)

2000-09-09T23:59:59.000Z

191

Acceptance testing of the eddy current probes for measurement of aluminum hydroxide coating thickness on K West Basin fuel elements  

SciTech Connect (OSTI)

During a recent visual inspection campaign of fuel elements stored in the K West Basin, it was noted that fuel elements contained in sealed aluminum canisters had a heavy translucent type coating on their surfaces (Pitner 1997a). Subsequent sampling of this coating in a hot cell (Pitner 1997b) and analysis of the material identified it as aluminum hydroxide. Because of the relatively high water content of this material, safety related concerns are raised with respect to long term storage of this fuel in Multi-Canister Overpacks (MCOs). A campaign in the basin is planned to demonstrate whether this coating can be removed by mechanical brushing (Bridges 1998). Part of this campaign involves before-and-after measurements of the coating thickness to determine the effectiveness of coating removal by the brushing machine. Measurements of the as-deposited coating thickness on multiple fuel elements are also expected to provide total coating inventory information needed for MCO safety evaluations. The measurement technique must be capable of measuring coating thicknesses on the order of several mils, with a measurement accuracy of 0.5 mil. Several different methods for quantitatively measuring these thin coatings were considered in selecting the most promising approach. Ultrasonic measurement was investigated, but it was determined that due to the thin coating depth and the high water content of the material, the signal would likely pass directly through to the cladding without ever sensing the coating surface. X-ray fluorescence was also identified as a candidate technique, but would not work because the high gamma background from the irradiated fuel would swamp out the low energy aluminum signal. Laser interferometry could possibly be applied, but considerable development would be required and it was considered to be high risk on a short term basis. The consensus reached was that standard eddy current techniques for coating thickness measurement had the best chance for success in this endeavor. If proper placement and alignment of the eddy current measurement probe on the coating could be achieved, the thickness of this non-conductive coating over the conductive fuel cladding (Zircaloy 2) should be measurable based on magnetic stand-off aspects. Eddy current devices are routinely used to measure paint coating thicknesses on metal surfaces in this regard. The purpose of this report is to document the development and acceptance testing of the eddy current system conducted to qualify its use for the measurement of aluminum hydroxide coating thicknesses on fuel stored in the K West Basin.

Pitner, A.L.

1998-08-21T23:59:59.000Z

192

RFID tag modification for full depth backscatter modulation  

DOE Patents [OSTI]

A modulated backscatter radio frequency identification device includes a diode detector configured to selectively modulate a reply signal onto an incoming continuous wave; communications circuitry configured to provide a modulation control signal to the diode detector, the diode detector being configured to modulate the reply signal in response to be modulation control signal; and circuitry configured to increase impedance change at the diode detector which would otherwise not occur because the diode detector rectifies the incoming continuous wave while modulating the reply signal, whereby reducing the rectified signal increases modulation depth by removing the reverse bias effects on impedance changes. Methods of improving depth of modulation in a modulated backscatter radio frequency identification device are also provided.

Scott, Jeffrey Wayne [Pasco, WA; Pratt, Richard M [Richland, WA

2010-07-20T23:59:59.000Z

193

Eight-year Climatology of Dust Optical Depth on Mars  

E-Print Network [OSTI]

We have produced a multiannual climatology of airborne dust from Martian year 24 to 31 using multiple datasets of retrieved or estimated column optical depths. The datasets are based on observations of the Martian atmosphere from April 1999 to July 2013 made by different orbiting instruments: the Thermal Emission Spectrometer (TES) aboard Mars Global Surveyor, the Thermal Emission Imaging System (THEMIS) aboard Mars Odyssey, and the Mars Climate Sounder (MCS) aboard Mars Reconnaissance Orbiter (MRO). The procedure we have adopted consists of gridding the available retrievals of column dust optical depth (CDOD) from TES and THEMIS nadir observations, as well as the estimates of this quantity from MCS limb observations. Our gridding method calculates averages and uncertainties on a regularly spaced, but possibly incomplete, spatio-temporal grid, using an iterative procedure weighted in space, time, and retrieval uncertainty. In order to evaluate strengths and weaknesses of the resulting gridded maps, we validat...

Montabone, L; Millour, E; Wilson, R J; Lewis, S R; Cantor, B A; Kass, D; Kleinboehl, A; Lemmon, M; Smith, M D; Wolff, M J

2014-01-01T23:59:59.000Z

194

X-ray spectra transmitted through Compton-thick absorbers  

E-Print Network [OSTI]

X-ray spectra transmitted through matter which is optically thick to Compton scattering are computed by means of Monte Carlo simulations. Applications to the BeppoSAX data of the Seyfert 2 galaxy in Circinus, and to the spectral modeling of the Cosmic X-ray Background, are discussed.

Giorgio Matt; Fulvio Pompilio; Fabio La Franca

1999-04-24T23:59:59.000Z

195

LBNL 59017 JArt 1 Improved Spatial Resolution in Thick, Fully-  

E-Print Network [OSTI]

LBNL 59017 JArt 1 Improved Spatial Resolution in Thick, Fully- Depleted CCDs with Enhanced Red developed at Lawrence Berkeley National Laboratory (LBNL). Because they can be over-depleted, the LBNL measure an rms diffusion of 3.7 ± 0.2 m. Lateral charge diffusion in LBNL CCDs will meet the SNAP

196

Thermally Induced Stresses in Functionally Graded Thick Tubes  

E-Print Network [OSTI]

thermal barrier coating for high temperature applications, a discrete layer of ceramic material is bondedThermally Induced Stresses in Functionally Graded Thick Tubes Senthil S. Vel and Rajeev Baskiyar method to obtain the temperature, displacements and thermal stresses. In addition to the thermal

Vel, Senthil

197

Ecology of Plants and Light CAM plants have thick,  

E-Print Network [OSTI]

orientation to maximize light exposure. Species Adaptations-Sun Solar tracking by leaves increases light1 Ecology of Plants and Light CAM plants have thick, succulent tissues to allow for organic acid and Light Some CAM plants not obligated to just CAM Can use C3 photosynthesis during day if conditions

Cochran-Stafira, D. Liane

198

Sensing roller for in-process thickness measurement  

DOE Patents [OSTI]

An apparatus and method are disclosed for processing materials by sensing roller, in which the sensing roller has a plurality of conductive rings (electrodes) separated by rings of dielectric material. Sensing capacitances or impedances between the electrodes provides information on thicknesses of the materials being processed, location of wires therein, and other like characteristics of the materials. 6 figs.

Novak, J.L.

1996-07-16T23:59:59.000Z

199

Thru-thickness bending stress distribution at elevated temperatures  

E-Print Network [OSTI]

the plate??s thickness decreased when the fabrication process was carried out at elevated temperatures. When steel exceeds a strain of 10 to 16 percent during the fabrication process, the plate becomes susceptible to cracking. This strain limit was exceeded...

Christian, Lee Conner

2005-08-29T23:59:59.000Z

200

Through-thickness ultrasonic characterization of wood and  

E-Print Network [OSTI]

in the form of bark, wood chips, sawdust, cotton gin trash, rice hulls, and sugar ba- gasse (Kleit et al. 1994. It was found that the equilibrium moisture content (EMC) was positively related to particulate sizeThrough-thickness ultrasonic characterization of wood and agricultural fiber composites Ronnie Y

Note: This page contains sample records for the topic "thickness ft depth" 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

Measurement of Paint Layer Thickness with Photothermal Infrared Radiometry  

E-Print Network [OSTI]

- try [1, 2]. As input for remote control systems, thickness information has to be supplied in realtime. Data acquisition has to be perfomed in a non-contact man- ner. Not only non-destructive and remote a periodical heat source on, respectively within, the sample then we waste a lot of information if only the #12

Louis, Alfred K.

202

The Museum Theorem: Thick Face-Paths and  

E-Print Network [OSTI]

The Museum Theorem: Thick Face-Paths and Hamiltonian-Connectedness in Plane Graphs Xiaoyun Lu #12;Visiting a Museum The Problem: The entrance and exit of a museum are fixed. You insist on visiting room F. The pieces of what you skip should be somehow "small". #12;Visiting a Museum The Problem

West, Douglas B.

203

Depth Profile Analysis of New Materials in Hollow Cathode Discharge  

SciTech Connect (OSTI)

In this review the possibility of hollow cathode discharge for depth profile analysis is demonstrated for several new materials: planar optical waveguides fabricated by Ag+-Na+ ion exchange process in glasses, SnO2 thin films for gas sensors modified by hexamethildisilazane after rapid thermal annealing, W- and WC- CVD layers deposited on Co-metalloceramics and WO3- CVD thin films deposited on glass. The results are compared with different standard techniques.

Djulgerova, R.; Mihailov, V.; Gencheva, V.; Popova, L.; Panchev, B. [Institute of Solid State Physics - Bulgarian Academy of Sciences, 1784 Sofia (Bulgaria); Michaylova, V. [Technical University of Sofia, 1797 Sofia (Bulgaria); Szytula, A.; Gondek, L.; Dohnalik, T.M. [Smoluchowski Institute of Physics - Jagellonian University, 30-059 Cracow (Poland); Petrovic, Z.Lj. [Institute of Physics, 11080 Zemun, Belgrade (Serbia and Montenegro)

2004-12-01T23:59:59.000Z

204

Colour videos with depth : acquisition, processing and evaluation  

E-Print Network [OSTI]

approach is a sensor fusion system which combines data Time-of-flight sensor fusionfrom a noisy, low-resolution time-of-flight camera and a high-resolution colour video camera into a coherent, noise-free video with depth. The system consists of a three... of Computer Graphics International (Short Papers), May 2009 – Proteus – semi-automatic interactive structure-from-motion Malte Schwarzkopf and Christian Richardt Poster at the Vision, Modeling, and Visualization Workshop (VMV), November 2009 – Layered photo...

Richardt, Christian

2012-03-06T23:59:59.000Z

205

Obtaining anisotropic velocity data for proper depth seismic imaging  

SciTech Connect (OSTI)

The paper deals with the problem of obtaining anisotropic velocity data due to continuous acoustic impedance-based measurements while scanning in the axial direction along the walls of the borehole. Diagrams of full conductivity of the piezoceramic transducer were used to derive anisotropy parameters of the rock sample. The measurements are aimed to support accurate depth imaging of seismic data. Understanding these common anisotropy effects is important when interpreting data where it is present.

Egerev, Sergey; Yushin, Victor; Ovchinnikov, Oleg; Dubinsky, Vladimir; Patterson, Doug [Andreyev Acoustics Institute, Moscow, 117036 (Russian Federation); Baker Hughes, Inc, 2001 Rankin Road, Houston, TX, 77073 (United States)

2012-05-24T23:59:59.000Z

206

Average Depth of Crude Oil and Natural Gas Wells  

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 Depth (AOD)ProductssondeadjustsondeadjustAboutScience Program Cumulus Humilis,Technologies Available Site

207

Abundances of metal-weak thick-disc candidates  

E-Print Network [OSTI]

High resolution spectra of 5 candidate metal-weak thick-disc stars suggested by Beers & Sommer-Larsen (1995) are analyzed to determine their chemical abundances. The low abundance of all the objects has been confirmed with metallicity reaching [Fe/H]=-2.9. However, for three objects, the astrometric data from the Hipparcos catalogue suggests they are true halo members. The remaining two, for which proper-motion data are not available, may have disc-like kinematics. It is therefore clear that it is useful to address properties of putative metal-weak thick-disc stars only if they possess full kinematic data. For CS 22894-19 the abundance pattern similar to those of typical halo stars is found, suggesting that chemical composition is not a useful discriminant between thick-disc and halo stars. CS 29529-12 is found to be C enhanced with [C/Fe]=+1.0; other chemical peculiarities involve the s process elements: [Sr/Fe]=-0.65 and [Ba/Fe]=+0.62, leading to a high [Ba/Sr] considerably larger than what is found in more metal-rich carbon-rich stars, but similar to LP 706-7 and LP 625-44 discussed by Norris et al (1997a). Hipparcos data have been used to calculate the space velocities of 25 candidate metal-weak thick-disc stars, thus allowing us to identify 3 bona fide members, which support the existence of a metal-poor tail of the thick-disc, at variance with a claim to the contrary by Ryan & Lambert (1995).

P. Bonifacio; M. Centurion; P. Molaro

1999-06-03T23:59:59.000Z

208

Auger and depth profile analysis of synthetic crystals for dispersion of soft x-rays  

SciTech Connect (OSTI)

Numerous samples have been fabricated and analyzed as part of a program to produce soft x-ray dispersion elements for various laboratory applications. The majority of this work has centered around the carbon/tungsten system, although several other low-Z/high-Z pairs have been investigated. This report describes the development of certain vacuum-deposition techniques for fabricating these dispersion elements, based upon results obtained from x-ray reflectivity measurements and Auger depth-profile analysis. The composition of the films is chiefly alternating layers of tungsten carbide and carbon. Excess carbon is introduced during the deposition of the tungsten to ensure that the carbide layer is fully stoichiometric. Layer thickness ranged from approx. 5 to 30 A for the carbide and from approx. 15 to 80 A for the carbon. The reflectivity measurements were made using Fe and Al K/sub ..cap alpha../ at grazing incidence. The emphasis in these studies is on the application of surface-analysis results in suggesting modifications to the fabrication process and in evaluating the results such modifications have on the layer stoichiometry, continuity, and periodicity of the dispersion elements so produced.

Rachocki, K.D.; Brown, D.R.; Springer, R.W.; Arendt, P.N.

1983-01-01T23:59:59.000Z

209

Conceptual design report for the project to install leak detection in FAST-FT-534/548/549  

SciTech Connect (OSTI)

This report provides conceptual designs and design recommendations for installing secondary containment and leak detection systems for three sumps at the Fluorinel and Storage Facility (FAST), CPP-666. The FAST facility is located at the Idaho Chemical Processing Plant (ICPP) at the Idaho National Engineering Laboratory (INEL). The three sumps receive various materials from the FAST water treatment process. This project involves sump upgrades to meet appropriate environmental requirements. The steps include: providing sump modifications or designs for the installation of leak chases and/or leakage accumulation, coating the sump concrete with a chemical resistant sealant (except for sump VES-FT-534 which is already lined with stainless steel) to act as secondary containment, lining the sumps with a primary containment system, and providing a means to detect and remove primary containment leakage that may occur.

Galloway, K.J.

1992-07-01T23:59:59.000Z

210

An Optimal Randomized Algorithm for Maximum Tukey Depth Timothy M. Chan  

E-Print Network [OSTI]

An Optimal Randomized Algorithm for Maximum Tukey Depth Timothy M. Chan Abstract We present the first optimal algorithm to compute the maximum Tukey depth (also known as location or halfspace depth , the Tukey depth of a point q IRd is defined as: min{|P | : over all halfspaces containing q}. We

Chan, Timothy M.

211

A NEW MULTIDIRECTIONAL EXTRAPOLATION HOLE-FILLING METHOD FOR DEPTH-IMAGE-BASED RENDERING  

E-Print Network [OSTI]

A NEW MULTIDIRECTIONAL EXTRAPOLATION HOLE-FILLING METHOD FOR DEPTH-IMAGE-BASED RENDERING Lai-Man Po School of Peking University, Shenzhen, China ABSTRACT Depth-Image-Based Rendering (DIBR) is widely used synthesis with high-quality depth map. Index Terms - Depth-Image-Based-Rendering, DIBR, Hole

Po, Lai-Man

212

Decline in ice thickness from sub data 1 10/16/07 The decline in arctic sea-ice thickness: separating the spatial, annual, and1  

E-Print Network [OSTI]

Decline in ice thickness from sub data 1 10/16/07 The decline in arctic sea-ice thickness/14/07 & 10/16/079 10 11 #12;Decline in ice thickness from sub data 2 10/16/07 Abstract11 Naval submarines have collected operational data of sea-ice draft (90% of thickness) in the12 Arctic Ocean since 1958

Percival, Don

213

ARM: 1-minute Raman Lidar: aerosol extinction profiles and aerosol optical thickness, from first Ferrare algorithm  

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

1-minute Raman Lidar: aerosol extinction profiles and aerosol optical thickness, from first Ferrare algorithm

Sivaraman, Chitra; Flynn, Connor

214

ARM: 10-minute Raman Lidar: aerosol extinction profiles and aerosol optical thickness, from first Ferrare algorithm  

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

10-minute Raman Lidar: aerosol extinction profiles and aerosol optical thickness, from first Ferrare algorithm

Newsom, Rob; Goldsmith, John

215

Numerical simulations of welds of thick steel pieces of interest for the thermonuclear fusion ITER machine  

E-Print Network [OSTI]

Numerical simulations of welds of thick steel pieces of interest for the thermonuclear fusion ITER machine

Carmignani, B

2005-01-01T23:59:59.000Z

216

Depth-Profiling and Quantitative Characterization of the Size, Composition,  

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: Vegetation Proposed Newcatalyst phasesData FilesShape, Density, and Morphology of Fine Particles |

217

Erosion Rate Variations during XPS Sputter Depth Profiling of Nanoporous  

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: Vegetation ProposedUsing ZirconiaPolicy and Assistance100 ton Stanat rolling millEricErnestErnieFilms. |

218

Property:AvgReservoirDepth | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformationInyo County, California | Open EnergyAuthor Jump to: navigation,AvgReservoirDepth Jump

219

Property:AvgWellDepth | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformationInyo County, California | Open EnergyAuthor Jump to: navigation,AvgReservoirDepth

220

Property:FirstWellDepth | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExploration Jump to:FieldProcedures Jump to: navigation,JumpFirstWellDepth Jump to:

Note: This page contains sample records for the topic "thickness ft depth" 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

Assessing the Radiative Impact of Clouds of Low Optical Depth  

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 Depth (AOD)ProductssondeadjustsondeadjustAbout theOFFICEAmesApplication2ArgonneAssembly of a MolecularAssemblythe

222

Terahertz inline wall thickness monitoring system for plastic pipe extrusion  

SciTech Connect (OSTI)

Conventional and commercially available inline wall thickness monitoring systems for pipe extrusion are usually based on ultrasonic or x-ray technology. Disadvantages of ultrasonic systems are the usual need of water as a coupling media and the high damping in thick walled or foamed pipes. For x-ray systems special safety requirements have to be taken into account because of the ionizing radiation. The terahertz (THz) technology offers a novel approach to solve these problems. THz waves have many properties which are suitable for the non-destructive testing of plastics. The absorption of electrical isolators is typically very low and the radiation is non-ionizing in comparison to x-rays. Through the electromagnetic origin of the THz waves they can be used for contact free measurements. Foams show a much lower absorption in contrast to acoustic waves. The developed system uses THz pulses which are generated by stimulating photoconductive switches with femtosecond laser pulses. The time of flight of THz pulses can be determined with a resolution in the magnitude of several ten femtoseconds. Hence the thickness of an object like plastic pipes can be determined with a high accuracy by measuring the time delay between two reflections on materials interfaces e.g. at the pipe's inner and outer surface, similar to the ultrasonic technique. Knowing the refractive index of the sample the absolute layer thickness from the transit time difference can be calculated easily. This method in principle also allows the measurement of multilayer systems and the characterization of foamed pipes.

Hauck, J., E-mail: j.hauck@skz.de, E-mail: d.stich@skz.de, E-mail: p.heidemeyer@skz.de, E-mail: m.bastian@skz.de, E-mail: t.hochrein@skz.de; Stich, D., E-mail: j.hauck@skz.de, E-mail: d.stich@skz.de, E-mail: p.heidemeyer@skz.de, E-mail: m.bastian@skz.de, E-mail: t.hochrein@skz.de; Heidemeyer, P., E-mail: j.hauck@skz.de, E-mail: d.stich@skz.de, E-mail: p.heidemeyer@skz.de, E-mail: m.bastian@skz.de, E-mail: t.hochrein@skz.de; Bastian, M., E-mail: j.hauck@skz.de, E-mail: d.stich@skz.de, E-mail: p.heidemeyer@skz.de, E-mail: m.bastian@skz.de, E-mail: t.hochrein@skz.de; Hochrein, T., E-mail: j.hauck@skz.de, E-mail: d.stich@skz.de, E-mail: p.heidemeyer@skz.de, E-mail: m.bastian@skz.de, E-mail: t.hochrein@skz.de [SKZ - German Plastics Center, Wuerzburg (Germany)

2014-05-15T23:59:59.000Z

223

Turbine blade having a constant thickness airfoil skin  

DOE Patents [OSTI]

A turbine blade is provided for a gas turbine comprising: a support structure comprising a base defining a root of the blade and a framework extending radially outwardly from the base, and an outer skin coupled to the support structure framework. The skin has a generally constant thickness along substantially the entire radial extent thereof. The framework and the skin define an airfoil of the blade.

Marra, John J

2012-10-23T23:59:59.000Z

224

LBNL/ Fall Protection Requirements for Boom Lift 2010 Requirements for boom lift operations is to tether an adjustable 6' lanyard to 3ft  

E-Print Network [OSTI]

LBNL/ Fall Protection Requirements for Boom Lift 2010 Requirements for boom lift operations. LBNL best practices requirements for boom lift Operations is to tether an adjustable 6' lanyard to 3ft protection system in required when anchor points are present in lift. It is LBNL best practices requirements

Eisen, Michael

225

PUTTING KNOWLEDGE TO WORK The University of Georgia and Ft. Valley State College, the U.S. Department of Agriculture and counties of the state cooperating.  

E-Print Network [OSTI]

, resulting in increased early mortality as well as decreased weights at the end of the grow out. Keeping in decreased weight gains, increased feed conversions, and possibly increased mortality. One environmental at a velocity of 400 - 500 ft/min over large birds can produce a wind chill effect of ten to twelve degrees

Navara, Kristen

226

Analysis of MALDI FT-ICR Mass Spectrometry Data: a Time Series Donald A. Barkauskasa, Scott R. Kronewitterb, Carlito B. Lebrillab, and David M. Rockec  

E-Print Network [OSTI]

Analysis of MALDI FT-ICR Mass Spectrometry Data: a Time Series Approach Donald A. Barkauskasa/ionization Fourier transform ion cyclotron resonance mass spectrometry is a technique for high mass gamma distribution with varying scale parameter but constant shape parameter and exponent. This enables

Rocke, David M.

227

PUTTING KNOWLEDGE TO WORK The University of Georgia and Ft. Valley State College, the U.S. Department of Agriculture and counties of the state cooperating.  

E-Print Network [OSTI]

of surface waters, and can lead to changes in species composition within land and water ecosystems. AmmoniaPUTTING KNOWLEDGE TO WORK The University of Georgia and Ft. Valley State College, the U.S to the formation of acid rain, which can damage sensitive ecosystems. In areas where nitrogen is a limiting

Navara, Kristen

228

Detailed chemical kinetic models for large n-alkanes and iso-alkanes found in conventional and F-T diesel fuels  

SciTech Connect (OSTI)

Detailed chemical kinetic models are needed to simulate the combustion of current and future transportation fuels. These models should represent the various chemical classes in these fuels. Conventional diesel fuels are composed of n-alkanes, iso-alkanes, cycloalkanes and aromatics (Farrell et al. 2007). For future fuels, there is a renewed interest in Fischer-Tropsch (F-T) processes which can be used to synthesize diesel and other transportation fuels from biomass, coal and natural gas. F-T diesel fuels are expected to be similar to F-T jet fuels which are commonly comprised of iso-alkanes with some n-alkanes (Smith and Bruno, 2008). Thus, n-alkanes and iso-alkanes are common chemical classes in these conventional and future fuels. This paper reports on the development of chemical kinetic models of large n-alkanes and iso-alkanes to represent these chemical classes in conventional and future fuels. Two large iso-alkanes are 2,2,4,4,6,8,8-heptamethylnonane, which is a primary reference fuel for diesel, and isooctane, a primary reference fuel for gasoline. Other iso-alkanes are branched alkanes with a single methyl side chain, typical of most F-T fuels. The chemical kinetic models are then used to predict the effect of these fuel components on ignition characteristics under conditions found in internal combustion engines.

Westbrook, C K; Pitz, W J; Curran, H J; Mehl, M

2008-12-15T23:59:59.000Z

229

PUTTING KNOWLEDGE TO WORK The University of Georgia and Ft. Valley State College, the U.S. Department of Agriculture and counties of the state cooperating.  

E-Print Network [OSTI]

in the prices paid for energy in recent years. In the last 10 years electrical costs have ranged from $0.07 per costs associated with the live production of broilers on farms in Georgia and the United States. HeatingPUTTING KNOWLEDGE TO WORK The University of Georgia and Ft. Valley State College, the U

Navara, Kristen

230

Magnetic Flares and the Observed Optical Depth in Seyfert Galaxies  

E-Print Network [OSTI]

We here consider the pressure equilibrium during an intense magnetic flare above the surface of a cold accretion disk. Under the assumption that the heating source for the plasma trapped within the flaring region is an influx of energy transported inwards with a group velocity close to $c$, e.g., by magnetohydrodynamic waves, this pressure equilibrium can constrain the Thomson optical depth $\\tau_T$ to be of order unity. We suggest that this may be the reason why $\\tau_T\\sim 1$ in Seyfert Galaxies. We also consider whether current data can distinguish between the spectrum produced by a single X-ray emitting region with $\\tau_T\\sim 1$ and that formed by many different flares spanning a range of $\\tau_T$. We find that the current observations do not yet have the required energy resolution to permit such a differentiation. Thus, it is possible that the entire X-ray/$\\gamma$-ray spectrum of Seyfert Galaxies is produced by many independent magnetic flares with an optical depth $0.5<\\tau_T<2$.

Sergei Nayakshin; Fulvio Melia

1997-05-30T23:59:59.000Z

231

Identification Of Rippability And Bedrock Depth Using Seismic Refraction  

SciTech Connect (OSTI)

Spatial variability of the bedrock with reference to the ground surface is vital for many applications in geotechnical engineering to decide the type of foundation of a structure. A study was done within the development area of Mutiara Damansara utilising the seismic refraction method using ABEM MK8 24 channel seismograph. The geological features of the subsurface were investigated and velocities, depth to the underlying layers were determined. The seismic velocities were correlated with rippability characteristics and borehole records. Seismic sections generally show a three layer case. The first layer with velocity 400-600 m/s predominantly consists of soil mix with gravel. The second layer with velocity 1600-2000 m/s is suggested to be saturated and weathered area. Both layers forms an overburden and generally rippable. The third layer represents granite bedrock with average depth and velocity 10-30 m and >3000 m/s respectively and it is non-rippable. Steep slope on the bedrock are probably the results of shear zones.

Ismail, Nur Azwin; Saad, Rosli; Nawawi, M. N. M; Muztaza, Nordiana Mohd; El Hidayah Ismail, Noer [Geophysics Section, School of Physics, 11800 Universiti Sains Malaysia, Pulau Pinang (Malaysia); Mohamad, Edy Tonizam [Faculty of Civil Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor (Malaysia)

2010-12-23T23:59:59.000Z

232

Effect of Aerosol Humidification on the Column Aerosol Optical Thickness  

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: Vegetation Proposed NewcatalystNeutronEnvironmentZIRKLE FRUITYear 1

233

Depth to bedrock using gravimetry in the Reno and Carson City, Nevada, basins Robert E. Abbott and John N. Louie  

E-Print Network [OSTI]

of geothermal wells, and one wildcat oil well. Depths in Carson City are consistent with depths from existing

234

Shared Communications: Volume 2. In-Depth Systems Research  

SciTech Connect (OSTI)

This report is the second of two documents that examine the literature for actual examples of organizations and agencies that share communications resources. While the primary emphasis is on rural, intelligent transportation system (ITS) communications involving transit, examples will not be limited to rural activities, nor to ITS implementation, nor even to transit. In addition, the term ''communication'' will be broadly applied to include all information resources. The first document of this series, ''Shared Communications: Volume I. A Summary and Literature Review'', defines the meaning of the term ''shared communication resources'' and provides many examples of agencies that share resources. This document, ''Shared Communications: Volume II. In-Depth Systems Research'', reviews attributes that contributed to successful applications of the sharing communication resources concept. A few examples of each type of communication sharing are provided. Based on the issues and best practice realworld examples, recommendations for potential usage and recommended approaches for field operational tests are provided.

Truett, LF

2004-09-22T23:59:59.000Z

235

Control Systems Cyber Security:Defense in Depth Strategies  

SciTech Connect (OSTI)

Information infrastructures across many public and private domains share several common attributes regarding IT deployments and data communications. This is particularly true in the control systems domain. A majority of the systems use robust architectures to enhance business and reduce costs by increasing the integration of external, business, and control system networks. However, multi-network integration strategies often lead to vulnerabilities that greatly reduce the security of an organization, and can expose mission-critical control systems to cyber threats. This document provides guidance and direction for developing ‘defense-in-depth’ strategies for organizations that use control system networks while maintaining a multi-tier information architecture that requires: Maintenance of various field devices, telemetry collection, and/or industrial-level process systems Access to facilities via remote data link or modem Public facing services for customer or corporate operations A robust business environment that requires connections among the control system domain, the external Internet, and other peer organizations.

David Kuipers; Mark Fabro

2006-05-01T23:59:59.000Z

236

Control Systems Cyber Security: Defense-in-Depth Strategies  

SciTech Connect (OSTI)

Information infrastructures across many public and private domains share several common attributes regarding IT deployments and data communications. This is particularly true in the control systems domain. A majority of the systems use robust architectures to enhance business and reduce costs by increasing the integration of external, business, and control system networks. However, multi-network integration strategies often lead to vulnerabilities that greatly reduce the security of an organization, and can expose mission-critical control systems to cyber threats. This document provides guidance and direction for developing ‘defense-in-depth’ strategies for organizations that use control system networks while maintaining a multi-tier information architecture that requires: • Maintenance of various field devices, telemetry collection, and/or industrial-level process systems • Access to facilities via remote data link or modem • Public facing services for customer or corporate operations • A robust business environment that requires connections among the control system domain, the external Internet, and other peer organizations.

Mark Fabro

2007-10-01T23:59:59.000Z

237

Vibration of circular plates, of several thicknesses, with three supports  

E-Print Network [OSTI]

~ ~ ~ ~ ~ ~ e ~ o ~ ~ i Prccedure and DeeoriPt'alen Of APPSXat'aua ~ ~ e ~ a ~ 0 ~ ~ i EmPirioal Ccrrelabicn Of Dataa ~ ~ ~ 1 ~ ~ ~ 01 ~ ~ ~ ~ ~ ~ ~ ~ i Kathemat, ical Theory of Thin Plates ~ a ~ ~ ~ ~ ~ 1 ~ a ~ ~ ~ Heeultaa ~ ~ ~ ~ ~ a... (cps) e M = symmetric mode, ie. 1, 2, 3, and 4. h= thickness of circular plate, in, Vhen there are mox'e than-thoro variables involved in the x esult, s of an experimental research, an empirical xelat, ionsh1p concerning the several variables may...

Ballentine, John Richard

2012-06-07T23:59:59.000Z

238

Thick brane models in generalized theories of gravity  

E-Print Network [OSTI]

This work deals with thick braneworld models, in an environment where the Ricci scalar is changed to accommodate the addition of two extra terms, one depending on the Ricci scalar itself, and the other, which takes into account the trace of the energy-momentum tensor of the scalar field that sources the braneworld scenario. We suppose that the scalar field engenders standard kinematics, and we show explicitly that the gravity sector of this new braneworld scenario is linearly stable. We illustrate the general results investigating two distinct models, focusing on how the brane profile is changed in the modified theories.

Bazeia, D; Menezes, R

2015-01-01T23:59:59.000Z

239

A comparison of thick film and thin film traffic stripes  

E-Print Network [OSTI]

Striys. . . Pigmented Bitusmn Stripes . Asphalt %uilt-Upa Striye vith Pigmented Portland Cement Mortar Cover Course 38 . ~ 41 Thin Film Stripes Used for Comparison Results of Comparing Thick Film Stripes and Thin Film Paint Stripes . ~ ~ ~ ~ ~ 43... was aspbaltio oonorets. The pavement in Test Areas 2y 3p and 4 vas portland cesmnh ooncrete, Two test areas (3 and 4) vere located in such manner as to provide uninterrupted flow of traffic over tbs entire length of the test area. The other two test areas (1...

Keese, Charles J

1952-01-01T23:59:59.000Z

240

Effect of Thickness on the Structure, Composition and Properties of  

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: Vegetation Proposed NewcatalystNeutronEnvironmentZIRKLE FRUITYearEffect ofReactions: A CaseTitanium

Note: This page contains sample records for the topic "thickness ft depth" 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

The fragmentation of expanding shells II: Thickness matters  

E-Print Network [OSTI]

We study analytically the development of gravitational instability in an expanding shell having finite thickness. We consider three models for the radial density profile of the shell: (i) an analytic uniform-density model, (ii) a semi-analytic model obtained by numerical solution of the hydrostatic equilibrium equation, and (iii) a 3D hydrodynamic simulation. We show that all three profiles are in close agreement, and this allows us to use the first model to describe fragments in the radial direction of the shell. We then use non-linear equations describing the time-evolution of a uniform oblate spheroid to derive the growth rates of shell fragments having different sizes. This yields a dispersion relation which depends on the shell thickness, and hence on the pressure confining the shell. We compare this dispersion relation with the dispersion relation obtained using the standard thin-shell analysis, and show that, if the confining pressure is low, only large fragments are unstable. On the other hand, if the...

Wunsch, Richard; Palous, Jan; Whitworth, Anthony P

2010-01-01T23:59:59.000Z

242

Oil shale ash-layer thickness and char combustion kinetics  

SciTech Connect (OSTI)

A Hot-Recycled-Solids (HRS) oil shale retort is being studied at Lawrence Livermore National Laboratory. In the HRS process, raw shale is heated by mixing it with burnt retorted shale. Retorted shale is oil shale which has been heated in an oxygen deficient atmosphere to pyrolyze organic carbon, as kerogen into oil, gas, and a nonvolatile carbon rich residue, char. In the HRS retort process, the char in the spent shale is subsequently exposed to an oxygen environment. Some of the char, starting on the outer surface of the shale particle, is burned, liberating heat. In the HRS retort, the endothermic pyrolysis step is supported by heat from the exothermic char combustion step. The rate of char combustion is controlled by three resistances; the resistance of oxygen mass transfer through the gas film surrounding the solid particle, resistance to mass transfer through a ash layer which forms on the outside of the solid particles as the char is oxidized and the resistance due to the intrinsic chemical reaction rate of char and oxygen. In order to estimate the rate of combustion of the char in a typical oil shale particle, each of these resistances must be accurately estimated. We begin by modeling the influence of ash layer thickness on the over all combustion rate of oil shale char. We then present our experimental measurements of the ash layer thickness of oil shale which has been processed in the HRS retort.

Aldis, D.F.; Singleton, M.F.; Watkins, B.E.; Thorsness, C.B.; Cena, R.J.

1992-04-15T23:59:59.000Z

243

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

244

Numerical simulation of the flow over a coastal structure in depth-limited conditions  

E-Print Network [OSTI]

of detailed measurements of irregular wave transformation in front of the structure in depth-limited conditions. The second data set consists of several test runs to study the irregular wave reflection and runup on the coastal structure in depth...

Ginting, Victor Eralingga

1998-01-01T23:59:59.000Z

245

Completion of the ORNL Fuel Cycle Research and Development (FCR&D) Level 4 Milestone – Sigma Team – Off-Gas – ORNL – FT-14OR031202, MS# M4FT-14OR0312027, “Support to PNNL Kr-85 Preliminary Optimization Study”, due May 30, 2014  

SciTech Connect (OSTI)

This letter and attached emails document the completion of the FCR&D Level 4 milestone for the Sigma Team – Off-Gas – ORNL work package (FT-14OR031202), “Support to PNNL Kr-85 Preliminary Optimization Study” (M4FT-14OR0312027), due May 30, 2014. Support to this effort included providing a literature search and providing a significant number of reference documents covering more than 30 years of past work on Kr recovery, recovery system designs, and past cost analyses. In addition, ORNL provided support on several conference calls to establish an analysis approach for the current study and to review progress.

Jubin, Robert T. [ORNL] [ORNL

2014-05-30T23:59:59.000Z

246

Neutron production by cosmic-ray muons at shallow depth J. Busenitz,1  

E-Print Network [OSTI]

neutrino and proton decay experiments, as well as dark matter searches even though often at greater depth for cold dark matter 3 , and is presently at shallow depth; muon-induced neutrons repre- sent a major at a shallow depth of 32 meters of water equivalent has been measured. The Palo Verde neutrino detector

Piepke, Andreas G.

247

Primal--Dual Algorithms for Data Depth David Bremner, Komei Fukuda, and Vera Rosta  

E-Print Network [OSTI]

as the generalization of the median of S by Tukey. The computation of the halfspace depth of a point is equivalent as multivariate generalizations of ranks to complement classical multivariate analysis, by Tukey (1974), Oja (1983 out that the halfspace depth of Tukey and the regression depth of Rousseeuw and Hu­ bert have all

Bremner, David

248

The Spectral Signature of Dust Scattering and Polarization in the Near IR to Far UV. I. Optical Depth and Geometry Effects  

E-Print Network [OSTI]

Spectropolarimetry from the near IR to the far UV of light scattered by dust provides a valuable diagnostic of the dust composition, grain size distribution and spatial distribution. To facilitate the use of this diagnostic, we present detailed calculations of the intensity and polarization spectral signature of light scattered by optically thin and optically thick dust in various geometries. The polarized light radiative transfer calculations are carried out using the adding-doubling method for a plane-parallel slab, and are extended to an optically thick sphere by integrating over its surface. The calculations are for the Mathis, Rumple & Nordsieck Galactic dust model, and cover the range from 1 $\\mu m$ to 500 \\AA. We find that the wavelength dependence of the scattered light intensity provides a sensitive probe of the optical depth of the scattering medium, while the polarization wavelength dependence provides a probe of the grain scattering properties, which is practically independent of optical depth. We provide a detailed set of predictions, including polarization maps, which can be used to probe the properties of dust through imaging spectropolarimetry in the near IR to far UV of various Galactic and extragalactic objects. In a following paper we use the codes developed here to provide predictions for the dependence of the intensity and polarization on grain size distribution and composition.

Victor G. Zubko; Ari Laor

1999-09-21T23:59:59.000Z

249

High resolution FT-ICR mass spectral analysis of bio-oil and residual water soluble organics produced by hydrothermal liquefaction of the marine microalga Nannochloropsis salina  

SciTech Connect (OSTI)

We report a detailed compositional characterization of a bio-crude oil and aqueous by-product from hydrothermal liquefaction of Nannochloropsis salina by direct infusion Fourier Transform Ion Cyclotron Resonance Mass Spectrometry (FT-ICR MS) in both positive- and negative-ionization modes. The FT-ICR MS instrumentation approach facilitates direct assignment of elemental composition to >7000 resolved mass spectral peaks and three-dimensional mass spectral images for individual heteroatom classes highlight compositional diversity of the two samples and provide a baseline description of these materials. Aromatic nitrogen compounds and free fatty acids are predominant species observed in both the bio-oil and aqueous fraction. Residual organic compounds present in the aqueous fraction show distributions that are slightly lower in both molecular ring and/or double bond value and carbon number relative to those found in the bio-oil, albeit with a high degree of commonality between the two compositions.

Sudasinghe, Nilusha; Dungan, Barry; Lammers, Peter; Albrecht, Karl O.; Elliott, Douglas C.; Hallen, Richard T.; Schaub, Tanner

2014-03-01T23:59:59.000Z

250

Galactic Bulge Microlensing Optical Depth from EROS-2  

E-Print Network [OSTI]

We present a new EROS-2 measurement of the microlensing optical depth toward the Galactic Bulge. Light curves of $5.6\\times 10^{6}$ clump-giant stars distributed over $66 \\deg^2$ of the Bulge were monitored during seven Bulge seasons. 120 events were found with apparent amplifications greater than 1.6 and Einstein radius crossing times in the range $5 {\\rm d}

C. Hamadache; L. Le Guillou; P. Tisserand; C. Afonso; J. N. Albert; J. Andersen; R. Ansari; E. Aubourg; P. Bareyre; J. P. Beaulieu; X. Charlot; C. Coutures; R. Ferlet; P. Fouqué; J. F. Glicenstein; B. Goldman; A. Gould; D. Graff; M. Gros; J. Haissinski; J. de Kat; E. Lesquoy; C. Loup; C. Magneville; J. B. Marquette; E. Maurice; A. Maury; A. Milsztajn; M. Moniez; N. Palanque-Delabrouille; O. Perdereau; Y. R. Rahal; J. Rich; M. Spiro; A. Vidal-Madjar; L. Vigroux; S. Zylberajch

2006-07-13T23:59:59.000Z

251

Digital in-line holography in thick optical systems: application to visualization in pipes  

E-Print Network [OSTI]

Digital in-line holography in thick optical systems: application to visualization in pipes N@coria.fr In this paper we apply digital in-line holography to image opaque objects through a thick plano-concave pipe to deal with various pipe shape and thickness and compensates for the lack of versatility of classical DIH

Paris-Sud XI, Université de

252

Sea-ice thickness measurement based on the dispersion of ice swell  

E-Print Network [OSTI]

-azimuth angles. The parameterization, that includes finding the best modeled ice thickness, is performed by usingSea-ice thickness measurement based on the dispersion of ice swell David Marsana) ISTerre, CNRS propagating in the Arctic sea ice cover is exploited in order to locally measure the ice thickness

253

Application of FLake for the prediction of ice thickness for inland waters in the Netherlands  

E-Print Network [OSTI]

Application of FLake for the prediction of ice thickness for inland waters in the Netherlands Cisco in the Netherlands. In cold spells numerous ditches, canals and lakes get frozen and many people go out for ice in the Netherlands. in ice thickness predictions. KNMI issues ice thickness predictions, based on a model of De Bruin

Stoffelen, Ad

254

Optically Thick Outflows of Supercritical Accretion Discs: Radiative Diffusion Approach  

E-Print Network [OSTI]

Highly supercritical accretion discs are probable sources of dense optically thick axisymmetric winds. We introduce a new approach based on diffusion approximation radiative transfer in a funnel geometry and obtain an analytical solution for the energy density distribution inside the wind assuming that all the mass, momentum and energy are injected well inside the spherization radius. This allows to derive the spectrum of emergent emission for various inclination angles. We show that self-irradiation effects play an important role altering the temperature of the outcoming radiation by about 20% and the apparent X-ray luminosity by a factor of 2-3. The model has been successfully applied to two ULXs. The basic properties of the high ionization HII-regions found around some ULXs are also easily reproduced in our assumptions.

P. Abolmasov; S. Karpov; Taro Kotani

2008-09-04T23:59:59.000Z

255

Fracture toughness of thick section dissimilar electron beam weld joints  

SciTech Connect (OSTI)

Microstructural investigations as well as crack tip opening displacement (CTOD) fracture toughness test based on elastic-plastic fracture mechanics were performed on single pass, full penetration similar and dissimilar electron beam (EB) welds of 40 mm thick 316L type austenitic steel and high alloyed fine tempered martensitic 9Cr 1Mo Nb V (P91 -ASTM A213) steel. The latter modified steel has been developed to fill up the gap between 12Cr steel and austenitic stainless steels with respect to the high temperature properties and better weldability. Furthermore, it shows a small thermal expansion coefficient and is not susceptible to stress corrosion cracking like the austenitic steel. The weldment properties were evaluated by microstructural analysis, microhardness, Charpy V- notch impact, and by newly developed flat microtensile specimens (0.5 mm thick). The dissimilar EB weld metal and HAZ of P91 steel has been shown to be microstructurally and mechanically distinct from both austenitic and martenistic parent metals. The use of microsized rectangular tensile specimens provides unique solution to the problem of the mechanical property determination of the narrow EB weld joint. The HAZ of the 9Cr1Mo steel exhibits extremely poor CTOD toughness properties in as-welded condition at room temperature. The CTOD values obtained were believed to be represent the intrinsic property of this zone, since the distance of the crack tip to the austenitic steel part was too large to receive a stress relaxation effect from low strength side on the crack tip (by accommodating the applied strains in the high toughness, lower strength 316L plate).

Kocak, M.; Junghans, E.

1994-12-31T23:59:59.000Z

256

Thick Pixelated CZT Detectors With Isolated Steering Grids  

E-Print Network [OSTI]

We explore the possibility to improve the performance of 0.5 cm thick Cadmium Zinc Telluride (CZT) detectors with the help of steering grids on the anode side of the detectors. Steering grids can improve the energy resolution of CZT detectors by enhancing the small pixel effect; furthermore, they can increase their detection efficiency by steering electrons to the anode pixels which otherwise would drift to the area between pixels. Previously, the benefit of steering grids had been compromised by additional noise associated with currents between the steering grids and the anode pixels. We use thin film deposition techniques to isolate the steering grid from the CZT substrate by a 150 nm thick layer of the isolator Aluminiumoxide. While the thin layer does not affect the beneficial effect of the steering grid on the weighting potentials and the electric field inside the detector, it suppresses the currents between the steering grid and the anode pixels. In this contribution, we present first results from a 2 x 2 x 0.5 cm CZT detector with 8 x 8 pixels that we tested before and after deposition of an isolated steering grid. The steering grid improves the 662 keV energy resolution of the detector by a factor of 1.3 (from about 2% to about 1.5%), while not reducing the detection efficiency. To gain further insights into the detector response in the region between pixels, we measured energy spectra with a collimated Cs137 source. The collimator measurements can be used to enhance our understanding of energy spectra measured under flood illumination of the detectors.

I. Jung; A. B. Garson; J. S. Perkins; H. Krawczynski; J. Matteson; R. T. Skelton; A. Burger; M. Groza

2005-11-18T23:59:59.000Z

257

Fringe biasing: A variance reduction technique for optically thick meshes  

SciTech Connect (OSTI)

Fringe biasing is a stratified sampling scheme applicable to Monte Carlo thermal radiation transport codes. The thermal emission source in optically thick cells is partitioned into separate contributions from the cell interiors (where the likelihood of the particles escaping the cells is virtually zero) and the 'fringe' regions close to the cell boundaries. Thermal emission in the cell interiors can now be modelled with fewer particles, the remaining particles being concentrated in the fringes so that they are more likely to contribute to the energy exchange between cells. Unlike other techniques for improving the efficiency in optically thick regions (such as random walk and discrete diffusion treatments), fringe biasing has the benefit of simplicity, as the associated changes are restricted to the sourcing routines with the particle tracking routines being unaffected. This paper presents an analysis of the potential for variance reduction achieved from employing the fringe biasing technique. The aim of this analysis is to guide the implementation of this technique in Monte Carlo thermal radiation codes, specifically in order to aid the choice of the fringe width and the proportion of particles allocated to the fringe (which are interrelated) in multi-dimensional simulations, and to confirm that the significant levels of variance reduction achieved in simulations can be understood by studying the behaviour for simple test cases. The variance reduction properties are studied for a single cell in a slab geometry purely absorbing medium, investigating the accuracy of the scalar flux and current tallies on one of the interfaces with the surrounding medium. (authors)

Smedley-Stevenson, R. P. [AWE PLC, Aldermaston Reading, Berkshire, RG7 4PR (United Kingdom)

2013-07-01T23:59:59.000Z

258

Influence of beam parameters on percentage depth dose in electron arc therapy  

SciTech Connect (OSTI)

The dependence of rotational or arc electron beam percentage depth doses on the depth of isocenter di and nominal beam field width w is presented. A characteristic angle beta, which uniquely depends on w and di, is defined and the dependence of the radial percentage depth doses on angle beta discussed. It is shown that the characteristic angle beta concept can be used in clinical situations to predict the shape of the percentage depth dose curve when w and di are known, or, more importantly, it can be used to determine the appropriate w when di and the percentage depth dose characteristics are known.

Pla, M.; Pla, C.; Podgorsak, E.B.

1988-01-01T23:59:59.000Z

259

Comparative analysis of the production costs and life-cycle GHG emissions of FT liquid fuels from coal and natural gas  

SciTech Connect (OSTI)

Liquid transportation fuels derived from coal and natural gas could help the United States reduce its dependence on petroleum. The fuels could be produced domestically or imported from fossil fuel-rich countries. The goal of this paper is to determine the life-cycle GHG emissions of coal- and natural gas-based Fischer-Tropsch (FT) liquids, as well as to compare production costs. The results show that the use of coal- or natural gas-based FT liquids will likely lead to significant increases in greenhouse gas (GHG) emissions compared to petroleum-based fuels. In a best-case scenario, coal- or natural gas-based FT-liquids have emissions only comparable to petroleum-based fuels. In addition, the economic advantages of gas-to-liquid (GTL) fuels are not obvious: there is a narrow range of petroleum and natural gas prices at which GTL fuels would be competitive with petroleum-based fuels. CTL fuels are generally cheaper than petroleum-based fuels. However, recent reports suggest there is uncertainty about the availability of economically viable coal resources in the United States. If the U.S. has a goal of increasing its energy security, and at the same time significantly reducing its GHG emissions, neither CTL nor GTL consumption seem a reasonable path to follow. 28 refs., 2 figs., 4 tabs.

Paulina Jaramillo; W. Michael Griffin; H. Scott Matthews [Carnegie Mellon University, Pittsburgh, PA (USA). Civil and Environmental Engineering Department

2008-10-15T23:59:59.000Z

260

Microsoft PowerPoint - WAPA Transmission Developments in NM (Ft. Collins, CO) 6-21-11.ppt [Compatibility Mode]  

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 andMapping RichlandScattering Properties of Aggregates ofVicksburg

Note: This page contains sample records for the topic "thickness ft depth" 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

EHL OIL FILM THICKNESS UNDER ROLLING-SLIDING CONTACT 2 W  

E-Print Network [OSTI]

Oil film Abstract: The Elastohydrodynamic lubrication (EHL) minimum oil film thickness is theoretically investigated under rolling with sliding contact. The effects of contact pressure, rolling speed and slip ratio on the EHL minimum oil film thickness are calculated numerically. It is found that for a range of contact pressure from 0.5 to 3.5 GPa, the minimum oil film thickness gradually decreases with the increase in contact pressure. As the rolling speed increases from 3500 to 4500 rpm, oil film thickness is increased. It is also found that the oil film thickness is not much influenced by the slip ratio. 1

D. M. Nuruzzaman; M. A. A. Sheikh

262

Optical doping of vwaveguide materials by MeV Er implantation A. Polman,a) D. C. Jacobson, D. J. Eaglesham, Ft. C. Kistler, and J. M. Poate  

E-Print Network [OSTI]

ions into micron-thick silica and phosphosilicate glass films and 1200-A-thick S&N4 films is studied materials in this planar technology are silica, phosphosilicate glass, and silicon nitride. The silica- based glasses, depending on annealing treatment and Er concentration. Silicon nitride films show lower

Polman, Albert

263

Development and implementation of a FT-ICR mass spectrometer for the investigation of ion conformations of peptide sequence isomers containing basic amino acid residues by gas-phase hydrogen/deuterium exchange  

E-Print Network [OSTI]

The gas-phase hydrogen/deuterium (H/D) exchange of protonated di- and tripeptides containing a basic amino acid residue has been studied with a Fourier transform ion cyclotron resonance (FT-ICR) mass spectrometer. Bimolecular reactions...

Marini, Joseph Thomas

2004-09-30T23:59:59.000Z

264

Lithium in very metal poor thick disk stars  

E-Print Network [OSTI]

A search for lithium is performed on seven metal poor dwarfs with metallicities ranging from [Fe/H]=-1.5 down to [Fe/H]=-3.0 but showing disk-like kinematics. These stars belong to the metal poor tail of the Galactic thick disk and they may be also the result of an accretion event (Beers and Sommer-Larsen 1995). The Li 6707.8 A line is present in all the seven dwarfs. The weighted average of the Li abundance for the stars is A(Li)=2.20 (+/-0.06) and is consistent within the errors with the plateau Li abundance of A(Li)=2.24(+/- 0.012) found in genuine halo stars in the same range of metallicities (Bonifacio and Molaro 1997). One of the stars, CS 22182-24, shows somewhat lower Li abundance (A(Li)=1.6(+/-0.40)) and is a candidate to being a Li-poor star. Whether this group of stars belongs to the oldest stars in the disk or to the old population of an external galaxy accreted by the Milky Way, the present observations provide support to the universality of a pre-Galactic Li abundance as is observed in the Galactic halo stars.

P. Molaro; P. Bonifacio; L. Pasquini

1997-09-25T23:59:59.000Z

265

Cladding Attachment Over Thick Exterior Insulating Sheathing (Fact Sheet)  

SciTech Connect (OSTI)

The addition of insulation to the exterior of buildings is an effective means of increasing the thermal resistance of wood-framed walls and mass masonry wall assemblies. The location of the insulation on the exterior of the structure has many direct benefits, including better effective R-value from reduced thermal bridging, better condensation resistance, reduced thermal stress on the structure, as well as other commonly associated improvements such as increased airtightness and improved water management. For thick layers of exterior insulation (more than 1.5 in.), the use of wood furring strips attached through the insulation back to the structure has been used by many contractors and designers as a means to provide a convenient cladding attachment location. Although the approach has proven effective, there is significant resistance to its widespread implementation due to a lack of research and understanding of the mechanisms involved in the development of the vertical displacement resistance capacity. In addition, the long-term in-service performance of the system has been questioned due to potential creep effects of the assembly under the sustained dead load of the cladding and effects of varying environmental conditions. In addition, the current International Building Code (IBC) and International Residential Code (IRC) do not have a provision that specifically allows this assembly.

Not Available

2013-11-01T23:59:59.000Z

266

Rotary union for use with ultrasonic thickness measuring probe  

DOE Patents [OSTI]

A rotary union for rotatably supporting an ultrasonic probe operable to nondestructively measure the thickness of steam generator tubes to determine the amount of corrosion experienced by the tubes includes a stationary body having a bore therethrough and an outlet drain, and a fitting rotatably mounted within the upper end of the body. The fitting has a bore aligned with the bore of the body. An electrical cable positioned within a water supply tube in an annular arrangement passes through the bore of the body and the bore of the fitting. This annular arrangement, in turn, is positioned within a connector element which extends outwardly from the fitting bore and is connected to the ultrasonic probe. An elastomeric lower bushing seals the annular arrangement to the lower end of the rotary union body and an elastomeric upper bushing seals the connector element to the fitting to permit the connector element and the ultrasonic probe connected thereto to rotate with the fitting relative to the body. The lower and upper bushings permit water to be passed through the annular arrangement and into the ultrasonic probe and thereafter discharged between the annular arrangement and the connector element to the outlet drain of the rotary union body. 5 figs.

Nachbar, H.D.

1992-09-15T23:59:59.000Z

267

Computing a Maximal Depth Point in the Plane Stefan Langerman # William Steiger +  

E-Print Network [OSTI]

], [7],[10],[11]. One of the more familiar ones was proposed by John Tukey [12], a natural extension to d > 1 of the notion in (1). Given a set S = {P 1 , . . . , Pn} of n points in R d , the Tukey depth is a point µ of maximal depth, and we write # # = #(S) for the Tukey depth of a median. For integer k > 0 let

Langerman, Stefan

268

High-energy x-ray diffractometer for nondestructive strain depth profile measurement  

SciTech Connect (OSTI)

We describe a lab-based high-energy x-ray diffraction system and a new approach to nondestructively measuring strain profiles in polycrystalline samples. This technique utilizes the tungsten K{sub ?1} characteristic radiation from a standard industrial x-ray tube. We introduce a simulation model that is used to determine strain values from data collected with this system. Examples of depth profiling are shown for shot peened aluminum and titanium samples. Profiles to 1 mm depth in aluminum and 300 ?m depth in titanium with a depth resolution of 20 ?m are presented.

Al-Shorman, M. Y. [Department of Physics, Yarmouk University, 21163 Irbid (Jordan)] [Department of Physics, Yarmouk University, 21163 Irbid (Jordan); Jensen, T. C.; Gray, J. N. [Center for Nondestructive Evaluation, Iowa State University, Ames, Iowa 50011 (United States)] [Center for Nondestructive Evaluation, Iowa State University, Ames, Iowa 50011 (United States)

2013-12-15T23:59:59.000Z

269

E-Print Network 3.0 - adjustable penetration depth Sample Search...  

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

MgB2 single crystals CATALIN MARTIN, MATTHEW VAN... , Laboratory for Solid State Physics, ETH, 8093 Zurich, Switzerland -- Magnetic penetration depth was studied... on ns, thus on...

270

A depth-16 circuit for the AES S-box joan@imada.sdu.dk  

E-Print Network [OSTI]

metric (gate count, depth, energy consumption, etc.). In practice, no known techniques can reliably find. Department of Mathematics and Computer Science, University of Southern Denmark. Partially sup- ported

271

Thin-thick hydrogen target for nuclear physics  

SciTech Connect (OSTI)

In spectroscopic studies of unstable nuclei, hydrogen targets are of key importance. The CHyMENE Project aims to provide to the nuclear physics community a thin and pure solid windowless hydrogen or deuterium target. CHyMENE project must respond to this request for the production of solid Hydrogen. The solid hydrogen target is produced in a continuous flow (1 cm/s) by an extrusion technique (developed with the PELIN laboratory) in a vacuum chamber. The shape of the target is determined by the design of the nozzle at the extrusion process. For the purpose, the choice is a rectangular shape with a width of 10 mm and a thickness in the range of 30-50 microns necessary for the physics objectives. The cryostat is equipped with a GM Cryocooler with sufficient power for the solidification of the hydrogen in the lower portion of the extruder. In the higher part of the cryostat, the hydrogen gas is first liquefied and partially solidified. It is then compressed at 100 bars in the cooled extruder before expulsion of the film through the nozzle at the center of the reaction vacuum chamber. After the previous step, the solid hydrogen ribbon falls by gravity into a dedicated chamber where it sublimes and the gas is pumped and evacuated in a exhaust line. This paper deals with the design of the cryostat with its equipment, with the sizing of the thermal bridge (Aluminum and copper), with the results regarding the contact resistance as well as with the vacuum computations of the reaction and recovery hydrogen gas chambers.

Gheller, J.-M.; Juster, F.-P.; Authelet, G. [CEA Saclay, Irfu/SACM, F-91191 Gif-Sur-Yvette cedex (France); Vinyar, I. [PELIN Limited Liability Company 27 A, Gzhatskaya Str, office 103 St. Petersbourg 195220 (Russian Federation); Relland, J. [CEA Saclay, Irfu/SIS, F-91191 Gif-Sur-Yvette cedex (France); Commeaux, C. [Institut de Physique Nucléaire, campus Universitaire-Bat 103, 91406 Orsay cedex (France)

2014-01-29T23:59:59.000Z

272

Hydrothermal Liquefaction Oil and Hydrotreated Product from Pine Feedstock Characterized by Heteronuclear Two-Dimensional NMR Spectroscopy and FT-ICR Mass Spectrometry  

SciTech Connect (OSTI)

Hydrothermal liquefaction (HTL) crude oil and hydrotreated product from pine tree farm waste (forest product residual, FPR) have been analyzed by direct infusion electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry (ESI FT-ICR MS) in both positive- and negative-ionization modes and high-resolution twodimensional heteronuclear 1H-13C NMR spectroscopy. FT-ICR MS resolves thousands of compounds in complex oils and provides unparalleled compositional details for individual molecules for identification of compound class (heteroatom content), type (number of rings plus double bonds to carbon or double bond equivalents (DBE) and carbon number (degree of alkylation). Heteronuclear 1H-13C NMR spectroscopy provides one-bond and multiple-bond correlations between pairs of 1H and 13C chemical shifts that are characteristic of different organic functional groups. Taken together this information provides a picture of the chemical composition of these oils. Pyrolysis crude oil product from pine wood was characterized for comparison. Generally, pyrolysis oil is comprised of a more diverse distribution of heteroatom classes with higher oxygen number relative to HTL oil as shown by both positive- and negative-ion ESI FT-ICR MS. A total of 300 N1, 594 O1 and 267 O2 compounds were observed as products of hydrotreatment. The relative abundance of N1O1, N1O2, N1O3, N2, N2O1, N2O2 and O3 compounds are reduced to different degrees after hydrotreatment and other higher heteroatom containing species (O4-O10, N1O4, N1O5 and N2O3) are completely removed by hydrotreatment.

Sudasinghe, Nilusha; Cort, John R.; Hallen, Richard T.; Olarte, Mariefel V.; Schmidt, Andrew J.; Schaub, Tanner

2014-12-14T23:59:59.000Z

273

Technology development for cobalt F-T catalysts. Final quarterly technical progress report No. 11, April 1, 1995--June 30, 1995  

SciTech Connect (OSTI)

Preliminary results on the effect of reaction temperature on the performance of Co catalysts during F-T synthesis obtained during the last quarter confirmed that Co catalysts were very sensitive to temperature and deactivated significantly at temperatures above 240{degree}C both in the fixed bed and the slurry bubble column reactors. Following this preliminary investigation, a series of tests were carried out during this period in order to elucidate the nature of this deactivation process as well as determine possible means of preventing it. In order to elucidate the nature of this deactivation process, the catalysts which had undergone significant deactivation after high temperature (280{degree}C) reaction in either the fixed bed reactor or the slurry bubble column reactor were regenerated and retested in the fixed bed reactor. In both cases the catalysts recovered completely their initial activity. In addition, reactions at very high H{sub 2}CO ratios and high temperatures showed very little deactivation, suggesting that the deactivation of the Co catalysts during F-T synthesis at high temperatures was mainly due carbon formation via the Boudouard reaction. Due to the unreactive nature of this carbon, it could only be removed by calcination. A second series of experiments was carried out to investigate the effect of certain promoters (Zr, La, Cr, and Re) as well as the effect of another support such as silica on the deactivation characteristics of Co catalysts during F-T synthesis at high temperature. The results suggest that the deactivation process and rate for most of these catalysts are similar to those of the alumina-supported catalysts tested previously (Co.005 and Co-053), and that none of the promoters helps to slow down the rate of carbon formation at high temperatures above 240{degree}C.

Singleton, A.H.

1995-10-25T23:59:59.000Z

274

Moessbauer spectroscopy studies of iron-catalysts used in Fischer-Tropsch (FT) processes. Quarterly technical progress report, January--March, 1994  

SciTech Connect (OSTI)

The objective of this project is to carry out a Moessbauer spectroscopy study of Iron-based catalysts to identify iron phases present and correlate with water gas shift and FT activities. A total of 15 catalysts were evaluated so far. Results are presented on the amounts in each catalyst of the following phases: superparamagnetic phase, hematite ({alpha}-Fe{sub 2}O{sub 3}), magnetite (Fe{sub 3}O{sub 4}), Chi-carbide phase ({chi}-Fe{sub 5}C{sub 2}), and an epsilon-carbide phase ({var_epsilon}-Fe{sub 2.2}C).

Huffman, G.P.; Rao, K.R.P.M.

1994-12-31T23:59:59.000Z

275

Coating thickness measurement by XRF in vacuum strip steel metallizing plants  

SciTech Connect (OSTI)

Devised for use in vacuum equipment of PVD strip steel coaters is a multichannel counting technique for the continuous XRF measurement of the coating thickness. This XRF coating thickness gage is used in a batch-type strip steel coater. It measures the thickness of single-side, double-side and alloy coatings (element contents included). The new XRF method operates without etalons. It is also possible to measure adjacent elements in the periodic law of chemical elements without difficulty. With only minor deviations from the nominal value the new XRF measuring system allows to keep the coating thickness practically constant.

Wenzel, D. [Von Ardenne Anlagentechnik GmbH, Dresden (Germany); Esche, H.J.; Pilz, J. [Amtec AnalysenmeBtechnik GmbH, Leipzig (Germany)

1994-12-31T23:59:59.000Z

276

Thick-Target Neutron Yield from the 19F(alpha,n) Reaction  

E-Print Network [OSTI]

Thick-target neutron yields from the 19F(alpha,n) reaction are reported for E(alpha) = 3.5 - 10.0 MeV.

E. B. Norman; T. E. Chupp; K. T. Lesko; G. L. Woodruff; P. J. Grant

2014-11-01T23:59:59.000Z

277

Bedmap2: improved ice bed, surface and thickness datasets for Antarctica  

E-Print Network [OSTI]

Antarctica (MOA) image map: Digital media, National Snow andmodel of Antarctica: Digital media, National Snow and IceThickness, 2009–2011: Digital media, NASA Distributed Active

2013-01-01T23:59:59.000Z

278

Application of a generalized methodology for quantitative thermal diffusivity depth profile reconstruction in manufactured inhomogeneous  

E-Print Network [OSTI]

Application of a generalized methodology for quantitative thermal diffusivity depth profile of the thermal diffusivity of inhomogeneous solids. In the depth profile reconstruction algorithm three channels Institute of Physics. S0021-8979 98 04305-9 I. INTRODUCTION Thermal diffusivity which depends

Mandelis, Andreas

279

Computational model to evaluate port wine stain depth profiling using pulsed photothermal radiometry  

E-Print Network [OSTI]

Computational model to evaluate port wine stain depth profiling using pulsed photothermal-thermal model to evaluate the use of pulsed photothermal radiometry (PPTR) for depth profiling of port wine the desired effect. A diagnostic measurement of the distribution of laser energy deposition and ensuing

Choi, Bernard

280

On the Symmetry Theory for Stokes Waves of Finite and In nite Depth  

E-Print Network [OSTI]

function which satis#12;ed the correct kinematic and dynamic boundary conditions for water waves of steady water waves on ows with #12;nite depth. The inde- pendent variable was a periodic functionOn the Symmetry Theory for Stokes Waves of Finite and In#12;nite Depth J.F. Toland 1 Background

Bath, University of

Note: This page contains sample records for the topic "thickness ft depth" 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

Total Sediment Load from SEMEP Using Depth-Integrated Concentration Measurements  

E-Print Network [OSTI]

Total Sediment Load from SEMEP Using Depth-Integrated Concentration Measurements Seema C. Shah sediment load calculations on the basis of depth-integrated sediment concentration measurements for channels with significant sediment transport in suspension. The series expansion of the modified Einstein

Julien, Pierre Y.

282

Instruments and Methods Portable system for intermediate-depth ice-core drilling  

E-Print Network [OSTI]

Instruments and Methods Portable system for intermediate-depth ice-core drilling V. Zagorodnov, L Road, Columbus, Ohio 43210-1002, U.S.A. ABSTRACT. A lightweight, portable drilling system for coring up to 500 m depths has been developed and field-tested. The drilling system includes four major components

Howat, Ian M.

283

Spectroscopic photothermal radiometry as a deep subsurface depth profilometric technique in semiconductors  

E-Print Network [OSTI]

aspects for three-dimensional infrared PTR for a strongly absorbed incident radiation have been optical penetration depth is presented. Numerical simulations of the PTR response to the electronic transport parameters and the optical penetration depth of the excitation source are presented. Intensity

Mandelis, Andreas

284

Laser infrared photothermal radiometric depth profilometry of steels and its potential in rail track evaluation  

E-Print Network [OSTI]

-surface structures and damage in materials, well beyond the optical penetration depth of illu- mination sources, iLaser infrared photothermal radiometric depth profilometry of steels and its potential in rail and Manufacturing Ontario, 5 King's College Road, Toronto, Ont, Canada M5S 3G8 Abstract Laser Infrared Photothermal

Mandelis, Andreas

285

Discussion of "Location-Scale Depth" by I. Mizera and C. H. Muller  

E-Print Network [OSTI]

the distance from zi (or any monotonic function of the distance) recovers the classical no- tion of Tukey depth to Tukey depth in hyperbolic space School of Information & Computer Science, Univ. of California, Irvine. By standard techniques for modeling hyperbolic space in Euclidean spaces, all the previous machinery of Tukey

Eppstein, David

286

Ecient computation of location depth contours by methods of computational geometry  

E-Print Network [OSTI]

, and the center of the deepest contour is called the Tukey median. The only available implemented algorithms for the depth contours and the Tukey median are slow, which limits their usefulness. In this paper we describe practice. Keywords: Bagplot, Bivariate Median, Graphical Display, Robust Estimation, Tukey Depth 1

Souvaine, Diane

287

A total of 377 peat age-depth relationships were used to quantify Holocene subsidence rates.  

E-Print Network [OSTI]

A total of 377 peat age-depth relationships were used to quantify Holocene subsidence rates. Subsidence rates were calculated using peat ages calibrated to the sidereal time scale and burial depths a polynomial that relates the peat age to the position of sea-level at that time in the past. The "sea

Kulp, Mark

288

Filling holes in regional carbon budgets: Predicting peat depth in a north temperate lake district  

E-Print Network [OSTI]

Filling holes in regional carbon budgets: Predicting peat depth in a north temperate lake district] Peat deposits contain on the order of 1/6 of the Earth's terrestrial fixed carbon (C), but uncertainty in peat depth precludes precise estimates of peat C storage. To assess peat C in the Northern Highlands

Turner, Monica G.

289

Depth of cure and compressive strength of dental composites cured with blue light emitting diodes (LEDs)  

E-Print Network [OSTI]

Depth of cure and compressive strength of dental composites cured with blue light emitting diodes with either a light emitting diode (LED) based light curing unit (LCU) or a conventional halogen LCU do reserved. Keywords: Blue light emitting diodes; Light curing unit; Composites; Irradiance; Spectrum; Depth

Ashworth, Stephen H.

290

Stream-bed scour, egg burial depths, and the influence of salmonid spawning on bed surface  

E-Print Network [OSTI]

Stream-bed scour, egg burial depths, and the influence of salmonid spawning on bed surface mobility-Hames, and Thomas P. Quinn Abstract: Bed scour, egg pocket depths, and alteration of stream-bed surfaces by spawning chum salmon (Onchorhynchus keta) were measured in two Pacific Northwest gravel-bedded streams. Close

Montgomery, David R.

291

ARM: 10-minute TEMPORARY Raman Lidar: aerosol extinction profiles and aerosol optical thickness, from first Ferrare algorithm  

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

10-minute TEMPORARY Raman Lidar: aerosol extinction profiles and aerosol optical thickness, from first Ferrare algorithm

Sivaraman, Chitra; Flynn, Connor

292

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, Smoluchowski Coagulation Models Of Sea Ice Thickness1  

E-Print Network [OSTI]

with thickness. This tail characterises the range of ice thickness produced4 by mechanical redistribution of ice Of Sea Ice Thickness1 Distribution Dynamics2 D. Godlovitch,1 R. Illner,2 and A. Monahan,1 D. Godlovitch ICE Abstract. Sea ice thickness distributions display a ubiquitous exponential de-3 crease

Illner, Reinhard

293

FT-IR and thermoluminescence investigation of P{sub 2}O{sub 5}-BaO-K{sub 2}O glass system  

SciTech Connect (OSTI)

The 0.5P{sub 2}O{sub 5}?xBaO?(0.5?x)K{sub 2}O glass system (0?x?0.5mol%) is investigated by FT-IR and thermoluminescence as a possible dosimetic material. FT-IR spectra show structural network modifications with the composition variations of the studied glasses. The predominant absorption bands are characterized by two broad peaks near 500 cm{sup ?1}, two weak peaks around 740 cm{sup ?1} and three peaks in the 900–1270 cm{sup ?1} region. The shift in the position of the band assigned to asymmetric stretching of PO{sub 2}{sup ?} group, ?{sub as}(PO{sub 2}{sup ?}) modes from ?1100 cm{sup ?1} to 1085 cm{sup ?1} and the decrease in its relative intensity with the increasing of K{sub 2}O content shows a network modifier role of this oxide.. Luminescence investigations show that by adding modifier oxides in the phosphate glass a dose dependent TL signals result upon irradiation. Thus P{sub 2}O{sub 5}–BaO–K{sub 2}O glass system is a possible candidate material for dosimetry in the dose 0 – 50 Gy range.

Ivascu, C. [Babes-Bolyai University, Faculty of Physics, Kogalniceanu 1, 400084 Cluj Napoca (Romania)] [Babes-Bolyai University, Faculty of Physics, Kogalniceanu 1, 400084 Cluj Napoca (Romania); Timar-Gabor, A. [Babes-Bolyai University, Faculty of Environmental Science, Fantanele 30, 400294 Cluj Napoca (Romania)] [Babes-Bolyai University, Faculty of Environmental Science, Fantanele 30, 400294 Cluj Napoca (Romania); Cozar, O. [Babes-Bolyai University, Faculty of Physics, Kogalniceanu 1, 400084 Cluj Napoca, Romania and Academy of Romanian Scientists, Splaiul Independentei 54, 050094, Bucharest (Romania)] [Babes-Bolyai University, Faculty of Physics, Kogalniceanu 1, 400084 Cluj Napoca, Romania and Academy of Romanian Scientists, Splaiul Independentei 54, 050094, Bucharest (Romania)

2013-11-13T23:59:59.000Z

294

High-resolution estimates of lithospheric thickness from Missouri to Massachusetts, USA  

E-Print Network [OSTI]

-dimensional (3-D) model, NA00, of the S-velocity of the upper mantle beneath North America. The model differs. The seismic lithosphere is 180 km thick below Missouri and Illinois, 200 km thick below Indiana, Ohio by fitting the waveforms of broadband seismic S and surface waves recorded by the MOMA array and inverting

van der Lee, Suzan

295

Parabolic equation solution of seismo-acoustics problems involving variations in bathymetry and sediment thickness  

E-Print Network [OSTI]

and sediment thickness Jon M. Collisa and William L. Siegmann Rensselaer Polytechnic Institute110 8th Street within elastic sediment layers. When these methods are implemented together, the parabolic equation method can be applied to problems involving variations in bathymetry and the thickness of sediment layers

296

Ice Mass Balance Buoy: An Instrument to Measure and Attribute Changes in Ice Thickness  

E-Print Network [OSTI]

Ice Mass Balance Buoy: An Instrument to Measure and Attribute Changes in Ice Thickness Jacqueline A the Ice Mass Balance buoy (IMB) in response to the need for monitoring changes in the thickness of the Arctic sea ice cover. The IMB is an autonomous, ice-based system. IMB buoys provide a time series of ice

Geiger, Cathleen

297

Ultrasonic thickness measurements on corroded steel members: a statistical analysis of error  

E-Print Network [OSTI]

with measuring the wall thickness of a corroded tubular member and 2) determining how the strength calculations are affected by an error in a wall thickness measurement. This thesis is based on the first phase of a research project funded by Mineral Management...

Konen, Keith Forman

1999-01-01T23:59:59.000Z

298

UTL CONSOLIDATION AND OUT-OF-AUTOCLAVE CURING OF THICK COMPOSITE STRUCTURES  

E-Print Network [OSTI]

1 M00-022 UTL CONSOLIDATION AND OUT-OF-AUTOCLAVE CURING OF THICK COMPOSITE STRUCTURES John Player fabrication of complex composite structures, but significant thickness reduction may occur during cure due fiber/Hexcel 8552 thermoset prepreg. KEY WORDS: Composite Structures, Cure Modeling, Ultrasonics

Roylance, David

299

An Affordable Approach for Robust Design of Thick Laminated Composite Structure  

E-Print Network [OSTI]

An Affordable Approach for Robust Design of Thick Laminated Composite Structure Wei Chen* Assistant of thick laminated composite structures. Our approach integrates the principles of the Robust Concept-level optimization procedure for managing the complexity of composite structure optimization. Foundational

Chen, Wei

300

Coating of a stainless steel tube-wall catalytic reactor with thermally treated polysiloxane thick films  

E-Print Network [OSTI]

Coating of a stainless steel tube-wall catalytic reactor with thermally treated polysiloxane thick stainless steel by plasma assisted chemical vapour deposition process. Thicknesses up to 10µm were developed glass-like silicon oxide but cannot be related to an amorphous silica structure. At 1273K the steel

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "thickness ft depth" 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

Friction of a slider on a granular layer: Nonmonotonic thickness dependence and effect of boundary conditions  

E-Print Network [OSTI]

Friction of a slider on a granular layer: Nonmonotonic thickness dependence and effect of boundary the effective friction encountered by a mass sliding on a granular layer as a function of bed thickness and boundary roughness conditions. The observed friction has minima for a small number of layers before

Kudrolli, Arshad

302

Optimal phosphor thickness for portal imaging Jean-Pierre Bissonnette 1  

E-Print Network [OSTI]

Optimal phosphor thickness for portal imaging Jean-Pierre Bissonnette 1 a), 2 b) London Regional this approach to determine which of eight phosphor screen thicknesses ranging between 67 and 947 mg/cm2 modest improvements in the indices of image quality for phosphor screens thicker than 350­400 mg/cm2

Cunningham, Ian

303

2009 ASME WIND ENERGY SYMPOSIUM Static and Fatigue Testing of Thick Adhesive Joints for  

E-Print Network [OSTI]

1 2009 ASME WIND ENERGY SYMPOSIUM Static and Fatigue Testing of Thick Adhesive Joints for Wind as wind blade size has increased. Typical blade joints use paste adhesives several millimeters thick aircraft, which are also of relevance to wind blades in many instances. The strengths of lap-shear and many

304

Density dependence of the symmetry energy from neutron skin thickness in finite nuclei  

SciTech Connect (OSTI)

The density dependence of the symmetry energy, characterized by the parameter L, is studied using information provided by the neutron skin thickness in finite nuclei. An estimate of L is obtained from experimental data of antiprotonic atoms. We also discuss the ability of parity violating electron scatering to obtain information about the neutron skin thickness in {sup 208}Pb.

Vinas, X.; Centelles, M.; Roca-Maza, X.; Warda, M. [Departament d'Estructura i Conastituents de la Materia and Institut de Ciencies del Cosmos, Facultat de Fisica, Universitat de Barcelona, Marti i Franques 1, 08028, Barcelona (Spain); Instituto Nazionale di Fisica Nucleare, Sezione di Milano , Via Celoria 16, I-20133 Milano (Italy); Katedra Fizyki Teoretycznej, Uniwersytet Marii Curie-Skodowskiej ul. Radziszewskiego 10, 20-031 Lublin (Poland)

2012-10-20T23:59:59.000Z

305

FLUORESCENCE AND FIBER-OPTICS BASED REAL-TIME THICKNESS SENSOR FOR DYNAMIC LIQUID FILMS  

E-Print Network [OSTI]

/analyzed the incident reflected waves to identify and measure the total transit time of the sound wave (of known wave-speed1 FLUORESCENCE AND FIBER-OPTICS BASED REAL-TIME THICKNESS SENSOR FOR DYNAMIC LIQUID FILMS T. W. Ng/disadvantages of many known liquid film thickness sensing devices (viz. conductivity probes, reflectance based fiber

Narain, Amitabh

306

On the effective plate thickness of monolayer graphene from flexural wave propagation  

E-Print Network [OSTI]

On the effective plate thickness of monolayer graphene from flexural wave propagation Sung Youb Kim utilize classical molecular dynamics to study flexural, or transverse wave propagation in monolayer) mode of wave propagation in a thin plate with plate thickness of h ÂĽ 0:104 nm. Finally, we find

Lin, Xi

307

A Method for Quantitative Mapping of Thick Oil Spills Using Imaging Spectroscopy  

E-Print Network [OSTI]

....................................................................................................................................................14 Figures 1. Image of oil emulsion from the Deepwater Horizon oil spill in the Gulf of Mexico offA Method for Quantitative Mapping of Thick Oil Spills Using Imaging Spectroscopy By Roger N. Clark (AVIRIS) Team, 2010, A method for quantitative mapping of thick oil spills using imaging spectroscopy: U

Torgersen, Christian

308

Effective elastic thickness of South America and its implications for intracontinental deformation  

E-Print Network [OSTI]

Effective elastic thickness of South America and its implications for intracontinental deformation. Within cratonic South America, Te variations are observed at regional scale: relatively lower Te occurs.y. Components: 13,516 words, 8 figures. Keywords: elastic thickness; South America; lithospheric structure

Watts, A. B. "Tony"

309

Great Lakes Ice Thickness Data Rescue Primary Investigator: Raymond Assel -NOAA/GLERL (Emeritus)  

E-Print Network [OSTI]

Great Lakes Ice Thickness Data Rescue Primary Investigator: Raymond Assel - NOAA/GLERL (Emeritus) Overview Ice cover is an important environmental factor affecting physical and biological processes in the coastal region of the Great Lakes. However, computerized ice thickness data along the shores of the Great

310

MCM LTER METADATA FILE TITLE: Lake ice thickness in the McMurdo Dry Valleys  

E-Print Network [OSTI]

MCM LTER METADATA FILE TITLE: Lake ice thickness in the McMurdo Dry Valleys ABSTRACT: Ice thickness was measured from the bottom of the ice cover to the piezometric water level and to the top of the ice cover-2360 achiuchiolo@montana.edu VARIABLES: Location Name, Location Code, Limno Run, Collection Date, z-water, z-ice, z

Priscu, John C.

311

Agreement Between Local and Global Measurements of the London Penetration Depth  

SciTech Connect (OSTI)

Recent measurements of the superconducting penetration depth in Ba(Fe{sub 1-x}Co{sub x}){sub 2}As{sub 2} appeared to disagree on the magnitude and curvature of {delta}{lambda}{sub ab}(T), even near optimal doping. These measurements were carried out on different samples grown by different groups. To understand the discrepancy, we use scanning SQUID susceptometry and a tunnel diode resonator to measure the penetration depth in a single sample. The penetration depth observed by the two techniques is identical with no adjustments. We conclude that any discrepancies arise from differences between samples, either in growth or crystal preparation.

Lippman, Thomas M.; Kalisky, Beena; Kim, Hyunsoo; Tanatar, Makariy; Budko, Sergey L.; Canfield, Paul C.; Prozorov, Ruslan; Moler, Kathryn A.

2012-08-29T23:59:59.000Z

312

Influence of a local change of depth on the behavior of bouncing oil drops  

E-Print Network [OSTI]

The work of Couder \\textit{et al} (see also Bush \\textit{et al}) inspired consideration of the impact of a submerged obstacle, providing a local change of depth, on the behavior of oil drops in the bouncing regime. In the linked videos, we recreate some of their results for a drop bouncing on a uniform depth bath of the same liquid undergoing vertical oscillations just below the conditions for Faraday instability, and show a range of new behaviors associated with change of depth. This article accompanies a fluid dynamics video entered into the Gallery of Fluid Motion of the 66th Annual Meeting of the APS Division of Fluid Dynamics.

Carmigniani, Remi; Symon, Sean; McKeon, Beverley J

2013-01-01T23:59:59.000Z

313

Depth Profile of Uncompensated Spins in an Exchange-Bias System  

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: Vegetation Proposed Newcatalyst phasesData Files DataADVANCESDepartmentDepartmentalDeploymentDepthDepth

314

Potential-well depth at amorphous-LaAlO{sub 3}/crystalline-SrTiO{sub 3} interfaces measured by optical second harmonic generation  

SciTech Connect (OSTI)

By a combination of optical second harmonic generation and transport measurements, we have investigated interfaces formed by either crystalline or amorphous thin films of LaAlO{sub 3} grown on TiO{sub 2}-terminated SrTiO{sub 3}(001) substrates. Our approach aims at disentangling the relative role of intrinsic and extrinsic doping mechanisms in the formation of the two-dimensional electron gas. The different nature of the two mechanisms is revealed when comparing the sample response variation as a function of temperature during annealing in air. However, before the thermal treatment, the two types of interfaces show almost the same intensity of the second harmonic signal, provided the overlayer thickness is the same. As we will show, the second harmonic signal is proportional to the depth of the potential well confining the charges at the interface. Therefore, our result demonstrates that this depth is about the same for the two different material systems. This conclusion supports the idea that the electronic properties of the two-dimensional electron gas are almost independent of the doping mechanism of the quantum well.

De Luca, Gabriele; Rubano, Andrea; Gennaro, Emiliano di; Khare, Amit; Granozio, Fabio Miletto; Uccio, Umberto Scotti di; Marrucci, Lorenzo; Paparo, Domenico, E-mail: domenico.paparo@spin.cnr.it [CNR-SPIN and Dipartimento di Fisica, Universitŕ di Napoli “Federico II,” Compl. Univ. di Monte S. Angelo, v. Cintia, 80126 Napoli (Italy)

2014-06-30T23:59:59.000Z

315

In situ measurement of low-Z material coating thickness on high Z substrate for tokamaks  

SciTech Connect (OSTI)

Rutherford backscattering of energetic particles can be used to determine the thickness of a coating of a low-Z material over a heavier substrate. Simulations indicate that 5 MeV alpha particles from an {sup 241}Am source can be used to measure the thickness of a Li coating on Mo tiles between 0.5 and 15??m thick. Using a 0.1?mCi source, a thickness measurement can be accomplished in 2 h of counting. This technique could be used to measure any thin, low-Z material coating (up to 1?mg/cm{sup 2} thick) on a high-Z substrate, such as Be on W, B on Mo, or Li on Mo. By inserting a source and detector on a moveable probe, this technique could be used to provide an in situ measurement of the thickness of Li coating on NSTX-U Mo tiles. A test stand with an alpha source and an annular solid-state detector was used to investigate the measurable range of low-Z material thicknesses on Mo tiles.

Mueller, D., E-mail: dmueller@pppl.gov; Roquemore, A. L.; Jaworski, M.; Skinner, C. H.; Miller, J.; Creely, A. [Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543 (United States); Raman, P.; Ruzic, D. [Department of Nuclear, Plasma, and Radiological Engineering, Center for Plasma Material Interaction, University of Illinois, Urbana, Illinois 61801 (United States)

2014-11-15T23:59:59.000Z

316

Use of Rapid Temperature Measurements at a 2-Meter Depth to Augment...  

Open Energy Info (EERE)

Measurements at a 2-Meter Depth to Augment Deeper Temperature Gradient Drilling Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Use of Rapid...

317

Depth inversion for nonlinear waves shoaling over a barred-beach 1  

E-Print Network [OSTI]

and calibrated for mild slopes are applied to the barred-beach. Expectedly, errors on depth prediction occur techniques such as Synthetic Aperture Radar (SAR), are still quite problematic under the current state

Grilli, Stéphan T.

318

Vehicle Technologies Office Merit Review 2014: Advanced Technology Vehicle Lab Benchmarking- Level 2 (in-depth)  

Broader source: Energy.gov [DOE]

Presentation given by Argonne National Laboratory at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about level 2 (in-depth...

319

Bioluminescence in a complex coastal environment: 2. Prediction of bioluminescent source depth from spectral  

E-Print Network [OSTI]

of a passive method (as opposed to active methods such as RADAR or LIDAR) to identify hostile ships, submarines this relative importance [Nealson, 1993]. Therefore the depth distribution of bioluminescent organisms is of eco

Moline, Mark

320

Influence of planting depth on landscape establishment of container-grown trees  

E-Print Network [OSTI]

and productivity (sustainability) of trees within terrestrial ecosystems. Tree planting depth, i.e. location of the root collar relative to soil grade, is of particular concern for tree growth, development, and performance in the landscape. A series of model...

Bryan, Donita Lynn

2009-05-15T23:59:59.000Z

Note: This page contains sample records for the topic "thickness ft depth" 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

Shear wave seismic velocity profiling and depth to water table earthquake site  

E-Print Network [OSTI]

..................................................................................................... 6 Summary of seismic refraction/reflection methodsShear wave seismic velocity profiling and depth to water table ­ earthquake site response measurements for Valley County, Idaho Lee M. Liberty and Gabriel M. Gribler, Boise State University Center

Barrash, Warren

322

Partnering: an in-depth comparison of its elements to quality improvement principles  

E-Print Network [OSTI]

PARTNERING: AN IN-DEPTH COMPARISON OF ITS ELEMENTS TO QUALITY IMPROVEMENT PRINCIPLES A Thesis by ANTHONY DAVID LOZADA Submitted to the Office of Graduate Studies of Texas AIIrM University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE December 1992 Major Subject: Civil Engineering PARTNERING: AN IN-DEPTH COMPARISON OF ITS ELEMENTS TO QUALITY IMPROVEMENT PRINCIPLES A Thesis by ANTHONY DAVID LOZADA Approved as to style and content by: Donald A...

Lozada, Anthony David

1992-01-01T23:59:59.000Z

323

ORIGIN OF CHEMICAL AND DYNAMICAL PROPERTIES OF THE GALACTIC THICK DISK  

SciTech Connect (OSTI)

We adopt a scenario in which the Galactic thick disk was formed by minor merging between the first generation of the Galactic thin disk (FGTD) and a dwarf galaxy about {approx}9 Gyr ago and thereby investigate chemical and dynamical properties of the Galactic thick disk. In this scenario, the dynamical properties of the thick disk have long been influenced both by the mass growth of the second generation of the Galactic thin disk (i.e., the present thin disk) and by its non-axisymmetric structures. On the other hand, the early star formation history and chemical evolution of the thin disk was influenced by the remaining gas of the thick disk. Based on N-body simulations and chemical evolution models, we investigate the radial metallicity gradient, structural and kinematical properties, and detailed chemical abundance patterns of the thick disk. Our numerical simulations show that the ancient minor merger event can significantly flatten the original radial metallicity gradient of the FGTD, in particular, in the outer part, and also can be responsible for migration of inner metal-rich stars into the outer part (R > 10 kpc). The simulations show that the central region of the thick disk can develop a bar due to dynamical effects of a separate bar in the thin disk. Whether or not rotational velocities (V{sub {phi}}) can correlate with metallicities ([Fe/H]) for the simulated thick disks depends on the initial metallicity gradients of the FGTDs. The simulated orbital eccentricity distributions in the thick disk for models with higher mass ratios ({approx}0.2) and lower orbital eccentricities ({approx}0.5) of minor mergers are in good agreement with the corresponding observations. The simulated V{sub {phi}}-|z| relation of the thick disk in models with low orbital inclination angles of mergers are also in good agreement with the latest observational results. The vertical metallicity gradient of the simulated thick disk is rather flat or very weakly negative in the solar neighborhood. Our Galactic chemical evolution models show that if we choose two distinctive timescales for star formation in the thin and thick disks, then the models can explain both the observed metallicity distribution functions and correlations between [Mg/Fe] and [Fe/H] for the two disks in a self-consistent manner. We discuss how the early star formation history and chemical evolution of the Galactic thin disk can be influenced by the pre-existing thick disk.

Bekki, Kenji [ICRAR, M468, University of Western Australia, Crawley, Western Australia, 6009 (Australia); Tsujimoto, Takuji [National Astronomical Observatory, Mitaka-shi, Tokyo 181-8588 (Japan)

2011-09-01T23:59:59.000Z

324

Time evolution of the exponential wavenumber spectra of turbulence upon helium injection into a hydrogen discharge at the FT-2 tokamak  

SciTech Connect (OSTI)

The effect of variations in the key parameter of short-wavelength turbulence-the ion-acoustic Larmor radius {rho}{sub s}, which determines the position of the maximum of the drift instability growth rate over poloidal wavenumbers-was studied experimentally at the FT-2 tokamak. For this purpose, helium was injected to hydrogen plasma, which resulted in a change in the electron temperature at the plasma edge. The universality of the exponential shape of the turbulence spectra over radial wavenumbers q and a substantial excess of the characteristic turbulence scale L over the ion-acoustic Larmor radius was confirmed with the help of correlative diagnostics of enhanced scattering. This excess at the discharge periphery reaches a value of 3-5 at a low electron temperature, apparently, due to an increase in the dissipation of drift waves upon their cascade transfer toward short scale-lengths.

Gurchenko, A. D.; Gusakov, E. Z.; Lashkul, S. I.; Altukhov, A. B.; Selyunin, E. P.; Esipov, L. A.; Kantor, M. Yu.; Kouprienko, D. V.; Stepanov, A. Yu. [Russian Academy of Sciences, Ioffe Physical Technical Institute (Russian Federation)

2013-05-15T23:59:59.000Z

325

Non-destructive in-situ method and apparatus for determining radionuclide depth in media  

DOE Patents [OSTI]

A non-destructive method and apparatus which is based on in-situ gamma spectroscopy is used to determine the depth of radiological contamination in media such as concrete. An algorithm, Gamma Penetration Depth Unfolding Algorithm (GPDUA), uses point kernel techniques to predict the depth of contamination based on the results of uncollided peak information from the in-situ gamma spectroscopy. The invention is better, faster, safer, and/cheaper than the current practice in decontamination and decommissioning of facilities that are slow, rough and unsafe. The invention uses a priori knowledge of the contaminant source distribution. The applicable radiological contaminants of interest are any isotopes that emit two or more gamma rays per disintegration or isotopes that emit a single gamma ray but have gamma-emitting progeny in secular equilibrium with its parent (e.g., .sup.60 Co, .sup.235 U, and .sup.137 Cs to name a few). The predicted depths from the GPDUA algorithm using Monte Carlo N-Particle Transport Code (MCNP) simulations and laboratory experiments using .sup.60 Co have consistently produced predicted depths within 20% of the actual or known depth.

Xu, X. George (Clifton Park, NY); Naessens, Edward P. (West Point, NY)

2003-01-01T23:59:59.000Z

326

PMo or PW heteropoly acids supported on MCM-41 silica nanoparticles: Characterisation and FT-IR study of the adsorption of 2-butanol  

SciTech Connect (OSTI)

Mesoporous silica, prepared in basic conditions, has been loaded (20% weight) with 12-molybdophosphoric (PMo) or 12-tungstophosphoric (PW) acid and calcined at different temperatures ranging between 250 and 550 deg. C. The samples have been characterised by N{sub 2} adsorption-desorption at -196 deg. C, transmission electron microscopy (TEM), powder X-ray diffraction (PXRD), UV-visible diffuse reflectance, Raman spectroscopy and temperature programmed reduction (TPR). The acidity and catalytic activity have been, respectively, examined by monitoring the adsorption of pyridine and 2-butanol by FT-IR spectroscopy. The results indicate that PW and PMo acids are highly dispersed on mesoporous silica MCM-41 spherical nanoparticles. While PMo retains its Keggin structure up to 550 deg. C, PW decomposes at this temperature into crystalline WO{sub 3} and phosphorous oxides. In both cases, the morphology, hexagonal symmetry and long-range order observed for the support are preserved with calcination up to 450 deg. C. The Broensted-type acid sites found in all samples, whose surface concentration decreases as the calcination temperature increases, are responsible for the selective formation of cis-butene detected upon adsorption of 2-butanol. The sample containing PW calcined at 450 deg. C also shows selectivity to methyl ethyl ketone. - Graphical abstract: Samples based in MCM-41 nanoparticles loaded with tungstophosphoric and molybdophosphoric acids have been synthesised. The uncalcined solids and that derived upon their calcination in the temperature range 250-550 deg. C have been characterised and evaluated in the decomposition of 2-butanol monitored by FT-IR spectroscopy.

Carriazo, Daniel [GIR-QUESCAT, Dpto. de Quimica Inorganica, Universidad de Salamanca, 37008-Salamanca (Spain); Domingo, Concepcion [Instituto de Estructura de la Materia, C.S.I.C., Serrano, 123, 28006-Madrid (Spain); Martin, Cristina [GIR-QUESCAT, Dpto. de Quimica Inorganica, Universidad de Salamanca, 37008-Salamanca (Spain); Rives, Vicente [GIR-QUESCAT, Dpto. de Quimica Inorganica, Universidad de Salamanca, 37008-Salamanca (Spain)], E-mail: vrives@usal.es

2008-08-15T23:59:59.000Z

327

Measuring Tail Thickness under GARCH and an Application to Extremal Exchange Rate Changes  

E-Print Network [OSTI]

relations and Extremes of a GARCH(1,1) Process, Annals ofMeasuring Tail Thickness under GARCH And an Application todistribution functions including GARCH and propose a model-

Wagner, Niklas; Marsh, Terry A.

2003-01-01T23:59:59.000Z

328

Thickness Measurement of Fracture Fluid Gel Filter Cake after Static Build Up and Shear Erosion  

E-Print Network [OSTI]

. Despite proven economic benefit, the hydraulic fracture fluid damages the producing formation and the propped fracture. To analyze the gel damage effect quantitatively, the filter cake thickness is used as a parameter that has not been measured before...

Xu, Ben

2011-08-08T23:59:59.000Z

329

Analysis of Antarctic Sea Ice Thickness: A Newly Created Database for 2000-2009  

E-Print Network [OSTI]

Observations of Antarctic sea ice thickness are sporadic in space and time, hindering knowledge of its variability. A proxy based on stage of development data from the National Ice Center (NIC) weekly operational charts is used to create a high...

Morgan, Benjamin Patrick

2012-10-19T23:59:59.000Z

330

Coextruded Polyethylene and Wood-Flour Composite: Effect of Shell Thickness, Wood Loading, and Core  

E-Print Network [OSTI]

Coextruded Polyethylene and Wood-Flour Composite: Effect of Shell Thickness, Wood Loading, and Core recycled polyethylene and wood-flour composites with core­shell structure were manufactured using a pilot

331

A determination of the effective thickness of a liquid deuterium target for a quasielastic scattering experiment  

E-Print Network [OSTI]

The effective thickness of a liquid deuterium target was determined by measuring the yield of the neutron-deuteron elastic scattering cross section. The flux of incident neutrons was determined by a fission ionization ...

Turkewitz, Jared Ripley

2010-01-01T23:59:59.000Z

332

E-Print Network 3.0 - aluminum alloy thick Sample Search Results  

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

Powered by Explorit Topic List Advanced Search Sample search results for: aluminum alloy thick Page: << < 1 2 3 4 5 > >> 1 Introduction Within the course of the last two years...

333

Thick and Thin Film Polymer CNT Nanocomposites for Thermoelectric Energy Conversion and Transparent Electrodes  

E-Print Network [OSTI]

Thick and Thin Film Polymer ­ CNT Nanocomposites for Thermoelectric Energy Conversion gradient. Thermoelectric materials harvest electricity from waste heat or any temperature gradient]. The PDDA/(SWNT+DOC) system produced transparent (> 82% visible light transmittance) and electrically

Fisher, Frank

334

Infrared photocarrier radiometry of semiconductors: Physical principles, quantitative depth profilometry, and scanning imaging of deep subsurface electronic defects  

E-Print Network [OSTI]

- sorption of the incident beam and nonradiative heating. The PCR theory is presented as infrared depthInfrared photocarrier radiometry of semiconductors: Physical principles, quantitative depth May 2003 Laser-induced infrared photocarrier radiometry PCR is introduced theoretically

Mandelis, Andreas

335

Relationships between inherent optical properties and the depth of penetration of solar radiation in optically complex coastal waters  

E-Print Network [OSTI]

Relationships between inherent optical properties and the depth of penetration of solar radiation optical properties and the depth of penetration of solar radiation in optically complex coastal waters, J

Strathclyde, University of

336

Thickness estimation of subsurface layers in asphalt pavement using monstatic ground penetrating radar  

E-Print Network [OSTI]

for the degree of MASTER OF SCIENCE December 1991 Major Subject: Electrical Engineering THICKNESS ESTIMATION OF SUBSURFACE LAYERS IN ASPHALT PAVEMENT USING MONSTATIC GROUND PENETRATING RADAR A Thesis CHUN LOK LAU Approved as to style and content by... ACKNOWLEDGEMENTS. LIST OF FIGURES. . CHAPTER I INTRODUCTION. 1. 1 Importance of pavement profile data. 1. 2 Principle of Ground Penetrating Radar (GPR) . . . 1. 3 Subsurface layer thickness measurement method. . . . . . II GPR ANTENNA AND SYSTEM CALIBRATION...

Lau, Chun Lok

1991-01-01T23:59:59.000Z

337

Ceramic thick film humidity sensor based on MgTiO{sub 3} + LiF  

SciTech Connect (OSTI)

Graphical abstract: - Highlights: • The fabricated sensor based on MgTiO{sub 3} + LiF materials used the spin coating technology. • The response time is 70 s to detect variation between 5 and 95% relative humidity. • The addition of Scleroglucan controls the viscosity and decreases the roughness of thick film surface. • This humidity sensor is a promising, low-cost, high-quality, reliable ceramic films, that is highly sensitive to humidity. - Abstract: The feasibility of humidity sensor, consisting of a thick layer of MgTiO{sub 3}/LiF materials on alumina substrate, was studied. The thermal analysis TGA-DTGA and dilatometric analysis worked out to confirm the sintering temperature. An experimental plan was applied to describe the effects of different parameters in the development of the thick film sensor. Structural and microstructural characterizations of the developed thick film were made. Rheological study with different amounts of a thickener (scleroglucan “sclg”), showing the behavior variation, as a function of sclg weight % was illustrated and rapprochement with the results of thickness variation as a function of angular velocity applied in the spin coater. The electrical and dielectric measurements confirmed the sensitivity of the elaborated thick film against moisture, along with low response time.

Kassas, Ahmad, E-mail: a.kassas.mcema@ul.edu.lb [Faculty of Agricultural Engineering and Veterinary Medicine, Laboratory of Materials, Catalysis, Environment and Analytical Methods (MCEMA), Faculty of Sciences and Doctoral School of Sciences and Technology (EDST), Lebanese University, Hariri Campus, Hadath, Beirut (Lebanon); Laboratoire Universitaire des Sciences Appliquées de Cherbourg (LUSAC), 50130 Cherbourg-Octeville (France); Bernard, Jérôme; Leličvre, Céline; Besq, Anthony; Guhel, Yannick; Houivet, David; Boudart, Bertrand [Laboratoire Universitaire des Sciences Appliquées de Cherbourg (LUSAC), 50130 Cherbourg-Octeville (France); Lakiss, Hassan [Faculty of Agricultural Engineering and Veterinary Medicine, Laboratory of Materials, Catalysis, Environment and Analytical Methods (MCEMA), Faculty of Sciences and Doctoral School of Sciences and Technology (EDST), Lebanese University, Hariri Campus, Hadath, Beirut (Lebanon); Faculty of Engineering, Section III, Hariri Campus, Hadath, Beirut (Lebanon); Hamieh, Tayssir [Faculty of Agricultural Engineering and Veterinary Medicine, Laboratory of Materials, Catalysis, Environment and Analytical Methods (MCEMA), Faculty of Sciences and Doctoral School of Sciences and Technology (EDST), Lebanese University, Hariri Campus, Hadath, Beirut (Lebanon)

2013-10-15T23:59:59.000Z

338

ARM: 10-minute Raman Lidar: aerosol depolarization profiles and single layer cloud optical depths from first Turner algorithm  

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

10-minute Raman Lidar: aerosol depolarization profiles and single layer cloud optical depths from first Turner algorithm

Newsom, Rob; Goldsmith, John

339

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

E-Print Network [OSTI]

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

Rieh, Jae-Sung

340

OUTPUT-SENSITIVE ALGORITHMS FOR TUKEY DEPTH AND RELATED PROBLEMS David Bremner Dan Chen John Iacono Stefan Langerman Pat Morin  

E-Print Network [OSTI]

OUTPUT-SENSITIVE ALGORITHMS FOR TUKEY DEPTH AND RELATED PROBLEMS David Bremner Dan Chen John Iacono Stefan Langerman Pat Morin ABSTRACT. The Tukey depth (Tukey 1975) of a point p with respect to a finite p. Algorithms for computing the Tukey depth of a point in various dimensions are considered

Bremner, David

Note: This page contains sample records for the topic "thickness ft depth" 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

Daily snow depth measurements from 195 stations in the United States  

SciTech Connect (OSTI)

This document describes a database containing daily measurements of snow depth at 195 National Weather Service (NWS) first-order climatological stations in the United States. The data have been assembled and made available by the National Climatic Data Center (NCDC) in Asheville, North Carolina. The 195 stations encompass 388 unique sampling locations in 48 of the 50 states; no observations from Delaware or Hawaii are included in the database. Station selection criteria emphasized the quality and length of station records while seeking to provide a network with good geographic coverage. Snow depth at the 388 locations was measured once per day on ground open to the sky. The daily snow depth is the total depth of the snow on the ground at measurement time. The time period covered by the database is 1893--1992; however, not all station records encompass the complete period. While a station record ideally should contain daily data for at least the seven winter months (January through April and October through December), not all stations have complete records. Each logical record in the snow depth database contains one station`s daily data values for a period of one month, including data source, measurement, and quality flags.

Allison, L.J. [ed.] [Oak Ridge National Lab., TN (United States). Carbon Dioxide Information Analysis Center; Easterling, D.R.; Jamason, P.; Bowman, D.P.; Hughes, P.Y.; Mason, E.H. [National Oceanic and Atmospheric Administration, Asheville, NC (United States). National Climatic Data Center

1997-02-01T23:59:59.000Z

342

The depth of the oil/brine interface and crude oil leaks in SPR caverns  

SciTech Connect (OSTI)

Monitoring wellhead pressure evolution is the best method of detecting crude oil leaks in SPR caverns while oil/brine interface depth measurements provide additional insight. However, to fully utilize the information provided by these interface depth measurements, a thorough understanding of how the interface movement corresponds to cavern phenomena, such as salt creep, crude oil leakage, and temperature equilibration, as well as to wellhead pressure, is required. The time evolution of the oil/brine interface depth is a function of several opposing factors. Cavern closure due to salt creep and crude oil leakage, if present, move the interface upward. Brine removal and temperature equilibration of the oil/brine system move the interface downward. Therefore, the relative magnitudes of these factors determine the net direction of interface movement. Using a mass balance on the cavern fluids, coupled with a simplified salt creep model for closure in SPR caverns, the movement of the oil/brine interface has been predicted for varying cavern configurations, including both right-cylindrical and carrot-shaped caverns. Three different cavern depths and operating pressures have been investigated. In addition, the caverns were investigated at four different points in time, allowing for varying extents of temperature equilibration. Time dependent interface depth changes of a few inches to a few feet were found to be characteristic of the range of cases studied. 5 refs, 19 figs., 1 tab.

Heffelfinger, G.S.

1991-06-01T23:59:59.000Z

344

FT-ICR STUDIES OF METAL-CARBON BINARY CLUSTERS, MASAMICHI KOHNO (Eng. Res. Inst., Univ. Tokyo, Bunkyo-ku, Tokyo 113-8656), SHUHEI INOUE (Dept. Mech. Eng., Univ.  

E-Print Network [OSTI]

, no pure carbon clusters were observed, whereas pure carbon clusters with almost the same intensity of MCn encapsulated inside. 50 60 70 Number of Carbon Atoms [Cm + ] Intensity(arb.units) (b) La:0.8% (a) Sc:0.8% LaAbstract FT-ICR STUDIES OF METAL-CARBON BINARY CLUSTERS, MASAMICHI KOHNO (Eng. Res. Inst., Univ

Maruyama, Shigeo

345

Quantification of depth of anesthesia by nonlinear time series analysis of brain electrical activity  

E-Print Network [OSTI]

We investigate several quantifiers of the electroencephalogram (EEG) signal with respect to their ability to indicate depth of anesthesia. For 17 patients anesthetized with Sevoflurane, three established measures (two spectral and one based on the bispectrum), as well as a phase space based nonlinear correlation index were computed from consecutive EEG epochs. In absence of an independent way to determine anesthesia depth, the standard was derived from measured blood plasma concentrations of the anesthetic via a pharmacokinetic/pharmacodynamic model for the estimated effective brain concentration of Sevoflurane. In most patients, the highest correlation is observed for the nonlinear correlation index D*. In contrast to spectral measures, D* is found to decrease monotonically with increasing (estimated) depth of anesthesia, even when a "burst-suppression" pattern occurs in the EEG. The findings show the potential for applications of concepts derived from the theory of nonlinear dynamics, even if little can be assumed about the process under investigation.

G. Widman; T. Schreiber; B. Rehberg; A. Hoeft; C. E. Elger

2000-07-20T23:59:59.000Z

346

Soil temperature, soil moisture and thaw depth, Barrow, Alaska, Ver. 1  

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

This dataset consists of field measurements of soil properties made during 2012 and 2013 in areas A-D of Intensive Site 1 at the Next-Generation Ecosystem Experiments (NGEE) Arctic site near Barrow, Alaska. Included are i) weekly measurements of thaw depth, soil moisture, presence and depth of standing water, and soil temperature made during the 2012 and 2013 growing seasons (June - September) and ii) half-hourly measurements of soil temperature logged continuously during the period June 2012 to September 2013.

Sloan, V.L.; J.A. Liebig; M.S. Hahn; J.B. Curtis; J.D. Brooks; A. Rogers; C.M. Iversen; R.J. Norby

347

Soil temperature, soil moisture and thaw depth, Barrow, Alaska, Ver. 1  

SciTech Connect (OSTI)

This dataset consists of field measurements of soil properties made during 2012 and 2013 in areas A-D of Intensive Site 1 at the Next-Generation Ecosystem Experiments (NGEE) Arctic site near Barrow, Alaska. Included are i) weekly measurements of thaw depth, soil moisture, presence and depth of standing water, and soil temperature made during the 2012 and 2013 growing seasons (June - September) and ii) half-hourly measurements of soil temperature logged continuously during the period June 2012 to September 2013.

Sloan, V.L.; J.A. Liebig; M.S. Hahn; J.B. Curtis; J.D. Brooks; A. Rogers; C.M. Iversen; R.J. Norby

2014-01-10T23:59:59.000Z

348

Depth Profile of Uncompensated Spins in an Exchange-Bias System  

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: Vegetation Proposed Newcatalyst phasesData Files DataADVANCESDepartmentDepartmentalDeployment ofDepth

349

Depth Profile of Uncompensated Spins in an Exchange-Bias System  

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: Vegetation Proposed Newcatalyst phasesData Files DataADVANCESDepartmentDepartmentalDeploymentDepth

350

Instruments and Methods Intermediate-depth ice coring of high-altitude and polar glaciers  

E-Print Network [OSTI]

an electromechanical drill (EMD) and an ethanol thermal electric drill (ETED). The EMD permitted an average ice in cold and temperate ice and in clean and particle-laden ice. The influence of the ethanol drilling fluid- arctica, 2000) and an ethanol thermal electric drill (ETED; Zagorodnov and others, 1998)). Ice thicknesses

Howat, Ian M.

351

Extraplanar Dust: a Tracer of Cold Dense Gas in the Thick Disks of Spiral Galaxies  

E-Print Network [OSTI]

The interstellar thick disks of galaxies contain not only gas, but significant quantities of dust. Most of our knowledge of extraplanar dust in disk galaxies comes from direct broadband optical imaging of these systems, wherein the dust is identified due to the irregular extinction it produces against the thick disk and bulge stars. This observational technique is sensitive to only the most dense material, and we argue much of the material identified in this way traces a cold phase of the interstellar thick disks in galaxies. The presence of a cold, dense phase likely implies the interstellar pressures in the thick disks of spiral galaxies can be quite high. This dense phase of the interstellar medium may also fueling thick disk star formation, and H-alpha observations are now revealing H II regions around newly-formed OB stars associations in several galaxies. We argue that the large quantities of dust and the morphologies of the structures traced by the dust imply that much of the extraplanar material in disk galaxies must have been expelled from the underlying thin disk.

J. Christopher Howk

2004-10-15T23:59:59.000Z

352

Thick adherent dielectric films on plastic substrates and method for depositing same  

DOE Patents [OSTI]

Thick adherent dielectric films deposited on plastic substrates for use as a thermal barrier layer to protect the plastic substrates from high temperatures which, for example, occur during laser annealing of layers subsequently deposited on the dielectric films. It is desirable that the barrier layer has properties including: a thickness of 1 .mu.m or greater, adheres to a plastic substrate, does not lift-off when cycled in temperature, has few or no cracks and does not crack when subjected to bending, resistant to lift-off when submersed in fluids, electrically insulating and preferably transparent. The thick barrier layer may be composed, for example, of a variety of dielectrics and certain metal oxides, and may be deposited on a variety of plastic substrates by various known deposition techniques. The key to the method of forming the thick barrier layer on the plastic substrate is maintaining the substrate cool during deposition of the barrier layer. Cooling of the substrate maybe accomplished by the use of a cooling chuck on which the plastic substrate is positioned, and by directing cooling gas, such as He, Ar and N.sub.2, between the plastic substrate and the cooling chucks. Thick adherent dielectric films up to about 5 .mu.m have been deposited on plastic substrates which include the above-referenced properties, and which enable the plastic substrates to withstand laser processing temperatures applied to materials deposited on the dielectric films.

Wickboldt, Paul (Walnut Creek, CA); Ellingboe, Albert R. (Fremont, CA); Theiss, Steven D. (Woodbury, MN); Smith, Patrick M. (San Ramon, CA)

2002-01-01T23:59:59.000Z

353

Thickness measurement system for transparent plates using dual digital versatile disc (DVD) pickups  

SciTech Connect (OSTI)

A low-cost high-precision thickness measurement system for transparent plates that uses dual digital versatile disc (DVD) pickups is proposed. The two DVD pickups are used as the transmitter and the receiver in the measurement system, respectively. One of the DVD pickups emits a laser to the other DVD pickup (receiver) and projects on the photodiode integrated circuit of the receiver. The transparent plate is placed in the optical path to change the focused point that will affect the focusing error signal (FES) of the receiver. Using the FES, a mathematical model for thickness measurement based on the geometric optical method is developed. The experimental results show that the accuracy is 1.5 {mu}m, and the uncertainty is estimated to be {+-}1.37 {mu}m for the measured thickness of 150{mu}m.

Liu, Chien-Hung; Yeh, Shien-Chang; Huang, Hsueh-Liang

2010-02-01T23:59:59.000Z

354

Permeability-thickness determination from transient production response at the southeast geysers  

SciTech Connect (OSTI)

The Fetkovich production decline curve analysis method was extended for application to vapor-dominated geothermal reservoirs for the purpose of estimating the permeability-thickness product (kh) from the transient production response. The analytic dimensionless terms for pressure, production rate, decline rate, and decline time were derived for saturated steam using the real gas potential and customary geothermal production units of pounds-mass per hour. The derived terms were numerically validating using ``Geysers-line`` reservoir properties at initial water saturation of 0 and at permeabilities of 1, 10, and 100 mD. The production data for 48 wells in the Southeast Geysers were analyzed and the permeability-thickness products determined from the transient production response using the Fetkovich production decline type curve. The kh results were in very good agreement with the published range at the Southeast Geysers and show regions of high permeability-thickness.

Faulder, D.D.

1996-08-01T23:59:59.000Z

355

Dynamics of Propane in Silica Mesopores Formed upon PropyleneHydrogenation over Pt Nanoparticles by Time-Resolved FT-IRSpectroscopy  

SciTech Connect (OSTI)

Propylene hydrogenation over Pt nanoparticles supported onmesoporous silica type SBA-15 was monitored by time-resolved FT-IRspectroscopy at 23 ms resolution using short propylene gas pulses thatjoined a continuous flow of hydrogen in N2 (1 atm total pressure).Experiments were conducted in the temperature range 323-413 K. Propanewas formed within 100 milliseconds or faster. The CH stretching regionrevealed distinct bands for propane molecules emerging inside thenanoscale channels of the silica support. Spectral analysis gave thedistribution of the propane product between support and surrounding gasphase as function of time. Kinetic analysis showed that the escape ofpropane molecules from the channels occurred within hundreds ofmilliseconds (3.1 + 0.4 s-1 at 383 K). A steady state distribution ofpropane between gas phase and mesoporous support is established as theproduct is swept from the catalyst zone by the continuous flow ofhydrogen co-reactant. This is the first direct spectroscopic observationof emerging products of heterogeneous catalysis on nanoporous supportsunder reaction conditions.

Waslylenko, Walter; Frei, Heinz

2007-01-31T23:59:59.000Z

356

Long prereproductive selection and divergence by depth in a Caribbean candelabrum coral  

E-Print Network [OSTI]

Long prereproductive selection and divergence by depth in a Caribbean candelabrum coral Carlos of the candelabrum coral Eunicea flexuosa across the Caribbean. Eunicea is endemic to the Caribbean and all sister: How can new marine species emerge without obvious geographic isolation? Caribbean coral reefs

Hellberg, Michael E.

357

Journal of Superconductivity, Vol. 5, No. 4, 1992 Magnetic Penetration Depth Measurements in  

E-Print Network [OSTI]

of superconductivity is the diamagnetic response of a superconductor below its transition temperature To. The abilityJournal of Superconductivity, Vol. 5, No. 4, 1992 Magnetic Penetration Depth Measurements in Cuprate Superconductors Steven M. AnlageI and Dong-Ho Wut Received 16 April 1992 We examine recent results

Anlage, Steven

358

Planetary boundary layer depth in Global climate models induced biases in surface climatology  

E-Print Network [OSTI]

The Earth has warmed in the last century with the most rapid warming occurring near the surface in the arctic. This enhanced surface warming in the Arctic is partly because the extra heat is trapped in a thin layer of air near the surface due to the persistent stable-stratification found in this region. The warming of the surface air due to the extra heat depends upon the amount of turbulent mixing in the atmosphere, which is described by the depth of the atmospheric boundary layer (ABL). In this way the depth of the ABL determines the effective response of the surface air temperature to perturbations in the climate forcing. The ABL depth can vary from tens of meters to a few kilometers which presents a challenge for global climate models which cannot resolve the shallower layers. Here we show that the uncertainties in the depth of the ABL can explain up to 60 percent of the difference between the simulated and observed surface air temperature trends and 50 percent of the difference in temperature variability...

Davy, Richard

2014-01-01T23:59:59.000Z

359

SHORE-BASED LOG PROCESSING Bottom felt: 4494 mbrf (used for depth shift to seafloor)  

E-Print Network [OSTI]

accurate compressional and shear veloc- ities. Quality Control During the processing, quality control to seafloor) Total penetration: 664 mbsf (drilled during DSDP Leg 45) Total core recovered: 106 m (18 old (reference curve) and new (match curve) shift depths. The total gamma-ray curve (SGR or HSGR) from

360

The depth of the tropical Pacific Ocean's warm surface layer shrank during the last three  

E-Print Network [OSTI]

The depth of the tropical Pacific Ocean's warm surface layer shrank during the last three decades Pacific Ocean, off an island in Palau. They analysed the ratio of nitrogen and carbon isotopes.1029/2010GL044867 (2010) OceanOgraphy Cold water rising in the Pacific DrUg DeVeLOpMenT Worm surgery on a chip

Yanik, Mehmet Fatih

Note: This page contains sample records for the topic "thickness ft depth" 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

Alkyl nitrate (C 1 -C 3 ) depth profiles in the tropical Pacific Ocean  

E-Print Network [OSTI]

concentrations with a [ iPr]/[Et] ratio of 0.1±0.0. Noat all depths with an [iPr]/[Et] ratio of 0.2 ± 0.0. Thiswith ethyl nitrate with an [iPr]/[Et] ratio of 0.2 ± 0.0.

Dahl, E. E; Yvon-Lewis, S. A; Saltzman, E. S

2007-01-01T23:59:59.000Z

362

Distinct compositional thin layers at mid-mantle depths beneath northeast China revealed by the USArray  

E-Print Network [OSTI]

Natural Gas Institute, China University of Petroleum, Beijing, China b Department of Earth Science, RiceDistinct compositional thin layers at mid-mantle depths beneath northeast China revealed crust northeast China USArray a b s t r a c t We observe a clear seismic arrival at $35­45 s after

Niu, Fenglin

363

Distinct compositional thin layers at mid-mantle depths beneath northeast China revealed by the USArray  

E-Print Network [OSTI]

Natural Gas Institute, China University of Petroleum, Beijing, China b Department of Earth Science, RiceDistinct compositional thin layers at mid-mantle depths beneath northeast China revealed February 2013 Keywords: S to P converted wave mid-mantle reflectors subducted oceanic crust northeast China

Niu, Fenglin

364

{sup 152}Eu depths profiles granite and concrete cores exposed to the Hiroshima atomic bomb  

SciTech Connect (OSTI)

Two granite and two concrete core samples were obtained within 500 m from the hypocenter of the Hiroshima atomic bomb, and the depth profile of {sup 152}Eu was measured to evaluate the incident neutron spectrum. The granite cores were obtained from a pillar of the Motoyasu Bridge located 101 m from the hypocenter and from a granite rock in the Shirakami Shrine (379 m); the concrete cores were obtained from a gate in the Gokoku Shrine (398 m) and from top of the Hiroshima bank (250 m). The profiles of the specific activities of the cores were measured to a depth of 40 cm from the surface using low background germanium (Ge) spectrometers. According to the measured depth profiles, relaxation lengths of incident neutrons were derived as 13.6 cm for Motoyasu Bridge pillar (granite), 12.2 cm for Shirakami Shrine core (granite), and 9.6 cm for concrete cores of Gokoku Shrine and Hiroshima Bank. In addition, a comparison of the granite cores in Hiroshima showed good agreement with Nagasaki data. Present results indicates that the depth profile of {sup 152}Eu reflects incident neutrons not so high but in the epithermal region. 19 refs., 7 figs., 8 tabs.

Shizuma, Kiyoshi; Iwatani, Kazuo [Hiroshima Univ. (Japan); Oka, Takamitsu [Kure Univ. (Japan)] [and others

1997-06-01T23:59:59.000Z

365

Depth and controls of Ca-rhodochrosite precipitation in bioturbated sediments of the Eastern Equatorial Pacific,  

E-Print Network [OSTI]

Depth and controls of Ca-rhodochrosite precipitation in bioturbated sediments of the Eastern Road, Moss Landing, CA 95039-9647, USA ABSTRACT The occurrence of early diagenetic Ca-rhodochrosite [(Mn,Ca)CO3] is reported in association with `griotte'-type nodular limestones from basinal settings

Gilli, Adrian

366

Maximum Neutral Buoyancy Depth of Juvenile Chinook Salmon: Implications for Survival during Hydroturbine Passage  

SciTech Connect (OSTI)

This study investigated the maximum depth at which juvenile Chinook salmon Oncorhynchus tshawytscha can acclimate by attaining neutral buoyancy. Depth of neutral buoyancy is dependent upon the volume of gas within the swim bladder, which greatly influences the occurrence of injuries to fish passing through hydroturbines. We used two methods to obtain maximum swim bladder volumes that were transformed into depth estimations - the increased excess mass test (IEMT) and the swim bladder rupture test (SBRT). In the IEMT, weights were surgically added to the fishes exterior, requiring the fish to increase swim bladder volume in order to remain neutrally buoyant. SBRT entailed removing and artificially increasing swim bladder volume through decompression. From these tests, we estimate the maximum acclimation depth for juvenile Chinook salmon is a median of 6.7m (range = 4.6-11.6 m). These findings have important implications to survival estimates, studies using tags, hydropower operations, and survival of juvenile salmon that pass through large Kaplan turbines typical of those found within the Columbia and Snake River hydropower system.

Pflugrath, Brett D.; Brown, Richard S.; Carlson, Thomas J.

2012-03-01T23:59:59.000Z

367

A New Theory for the Atmospheric Energy Spectrum: Depth-Limited Temperature Anomalies at the Tropopause  

E-Print Network [OSTI]

A New Theory for the Atmospheric Energy Spectrum: Depth-Limited Temperature Anomalies Sciences, New York University, 251 Mercer Street, New York, NY 10012 Communicated by Andrew J. Majda, June- bations generated at the planetary scale excite a direct cas- cade of energy with a slope of -3 at large

Smith, K. Shafer

368

The E-utilities In-Depth: Parameters, Syntax and More Eric Sayers, PhD  

E-Print Network [OSTI]

The E-utilities In-Depth: Parameters, Syntax and More Eric Sayers, PhD NCBI sayers@ncbi.nlm.nih.gov Introduction This chapter serves as a reference for all supported parameters for the E-utilities, along with accepted values and usage guidelines. This information is provided for each E-utility in sections below

Levin, Judith G.

369

Intermediate-depth Circulation of the Indian and South Pacific Oceans Measured by Autonomous Floats  

E-Print Network [OSTI]

Intermediate-depth Circulation of the Indian and South Pacific Oceans Measured by Autonomous Floats of the World Ocean Circulation Experiment, 306 autonomous floats were deployed in the tropical and South autonomous floats that are not acoustically tracked, but rather surface at regular intervals to be located by

Davis, Russ

370

Secure Computation of Constant-Depth Circuits with Applications to Database Search Problems  

E-Print Network [OSTI]

Secure Computation of Constant-Depth Circuits with Applications to Database Search Problems Omer. Motivated by database search problems such as partial match or nearest neighbor, we present secure between k poly log(s) parties who all know C, we obtain a secure protocol for evaluating C(x) using O

Shpilka, Amir

371

Secure Computation of Constant-Depth Circuits with Applications to Database Search Problems ?  

E-Print Network [OSTI]

Secure Computation of Constant-Depth Circuits with Applications to Database Search Problems ? Omer. Motivated by database search problems such as partial match or nearest neighbor, we present secure distributed between k #21; poly log(s) parties who all know C, we obtain a secure protocol for evaluating C

Ishai, Yuval

372

Probabilistic models and reliability analysis of scour depth around bridge piers  

E-Print Network [OSTI]

parameters suggest that the maximum sour depth predicted by the deterministic HEC-18 Sand and HEC-18 Clay models tend to be conservative. Evidence is also found that the applicability of the HEC-18 Clay method is not limited to clay but can also be used...

Bolduc, Laura Christine

2009-06-02T23:59:59.000Z

373

3D MODEL RETRIEVAL BASED ON DEPTH LINE DESCRIPTOR Mohamed Chaouch and Anne Verroust-Blondet  

E-Print Network [OSTI]

3D MODEL RETRIEVAL BASED ON DEPTH LINE DESCRIPTOR Mohamed Chaouch and Anne Verroust-Blondet INRIA.verroust}@inria.fr. ABSTRACT In this paper, we propose a novel 2D/3D approach for 3D model matching and retrieving. Each model information provides a more accurate description of 3D shape boundaries than using other 2D shape descriptors

Paris-Sud XI, Université de

374

3D VIDEO QUALITY EVALUATION WITH DEPTH QUALITY VARIATIONS Gustavo Leon, Hari Kalva, and Borko Furht  

E-Print Network [OSTI]

3D VIDEO QUALITY EVALUATION WITH DEPTH QUALITY VARIATIONS Gustavo Leon, Hari Kalva, and Borko Furht on 3D video perception on autostereoscopic displays. This study was done using objective as well image quality and compression on the perceived 3D experience. Another objective is to evaluate the use

Kalva, Hari

375

Photothermoacoustic imaging of biological tissues: maximum depth characterization comparison of time and  

E-Print Network [OSTI]

Photothermoacoustic imaging of biological tissues: maximum depth characterization comparison for Advanced Diffusion-Wave Technologies Department of Mechanical and Industrial Engineering 5 King's College induced in light-absorbing materials can be observed either as a transient signal in time domain

Mandelis, Andreas

376

Integrating Kinect Depth Data with a Stochastic Object Classification Framework for Forestry Robots  

E-Print Network [OSTI]

Integrating Kinect Depth Data with a Stochastic Object Classification Framework for Forestry Robots camera for a stochastic classification system for forestry robots. The images are classified as bush- ject classification system that uses only RGB camera. The system is aimed for a forestry robot

Hellström, Thomas

377

Energy-Based 6-DOF Penetration Depth Computation for Penalty-Based Haptic Rendering Algorithms  

E-Print Network [OSTI]

Energy-Based 6-DOF Penetration Depth Computation for Penalty-Based Haptic Rendering Algorithms Maxim Kolesnikov and Milos Zefran Abstract-- Existing penalty-based haptic rendering ap- proaches of rigid-body motions SE(3). We propose a penalty-based six-degrees-of-freedom (6-DOF) haptic rendering

Zefran, Milo?

378

IEA BESTEST Multi-Zone Non-Airflow In-Depth Diagnostic Cases: Preprint  

SciTech Connect (OSTI)

This paper documents a set of in-depth diagnostic test cases for multi-zone heat transfer models that do not include the heat and mass transfer effects of airflow between zones. The multi-zone non-airflow test cases represent an extension to IEA BESTEST (Judkoff and Neymark 1995a).

Neymark, J.; Judkoff, R.; Alexander, D.; Felsmann, C.; Strachan, P.; Wijsman, A.

2011-11-01T23:59:59.000Z

379

Optical and thermal depth profile reconstructions of inhomogeneous photopolymerization in dental resins using photothermal waves  

E-Print Network [OSTI]

, Mexico 2 Department of Mechanical and Industrial Engineering, Center for Advanced Diffusion experimental data.8­13 Some of those methods in- volve a judiciously structured functional form, several algorithms to invert the depth pro- files have been applied, using an inverse procedure to find

Mandelis, Andreas

380

CHARACTERISATION OF AGED HDPE PIPES FROM DRINKING WATER DISTRIBUTION: INVESTIGATION OF CRACK DEPTH BY NOL RING  

E-Print Network [OSTI]

CHARACTERISATION OF AGED HDPE PIPES FROM DRINKING WATER DISTRIBUTION: INVESTIGATION OF CRACK DEPTH are used for the transport of drinking water. However, disinfectants in water seem to have a strong impact for the distribution of drinking water. HDPE pipes are exposed to an internal pressure due to water flow. Furthermore

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "thickness ft depth" 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

Probing the Depths of CSP-M: A new fdr-compliant Validation Tool  

E-Print Network [OSTI]

Probing the Depths of CSP-M: A new fdr-compliant Validation Tool Michael Leuschel and Marc Fontaine,fontaine}@cs.uni-duesseldorf.de Abstract. We present a new animation and model checking tool for CSP. The tool covers the CSP-M language in the source code, has an LTL model checker and can be used for combined CSP B specifications. During

Southampton, University of

382

Estimates of heat flow from Cenozoic seafloor using global depth and age data  

E-Print Network [OSTI]

-independent estimate of the total heat output of Cenozoic seafloor is 18.6 to 20.5 TW, which leads to a global output: Oceanic heat flow; Global heat budget; Subsidence rate 1. Introduction The total heat output of the EarthEstimates of heat flow from Cenozoic seafloor using global depth and age data Meng Wei , David

Sandwell, David T.

383

Vertically Loaded Anchor: Drag Coefficient, Fall Velocity, and Penetration Depth using Laboratory Measurements  

E-Print Network [OSTI]

anchor point. Values such as drag coefficient and terminal velocity are vital in predicting embedment depth to obtain the mooring capacity required by the floating facility. Two scaled models of the Mark I OMNI-Max anchor were subjected to a series...

Cenac, William

2011-08-08T23:59:59.000Z

384

Oil and Gas CDT Predicting fault permeability at depth: incorporating natural  

E-Print Network [OSTI]

Oil and Gas CDT Predicting fault permeability at depth: incorporating natural permeability controls on fluid flow in oil and gas reservoirs. Fault zones are composed of many deformation elements will receive 20 weeks bespoke, residential training of broad relevance to the oil and gas industry: 10 weeks

Henderson, Gideon

385

The effect of ocean mixed layer depth on climate in slab ocean aquaplanet experiments  

E-Print Network [OSTI]

a severely reduced (&50 %) meridi- onal energy transport relative to the deep ocean runs. As a resultThe effect of ocean mixed layer depth on climate in slab ocean aquaplanet experiments Aaron Donohoe online: 28 June 2013 Ă? Springer-Verlag Berlin Heidelberg 2013 Abstract The effect of ocean mixed layer

Battisti, David

386

Solid precipitation on a tropical glacier in Bolivia measured with an ultrasonic depth gauge  

E-Print Network [OSTI]

Solid precipitation on a tropical glacier in Bolivia measured with an ultrasonic depth gauge Jean´veloppement, La Paz, Bolivia Received 24 April 2002; revised 6 June 2002; accepted 6 June 2002; published 10 the equilibrium line of the Zongo glacier (2.4 km2 ), Bolivia (16°S). Study of the influence of wind, air

Berthier, Etienne

387

Physicochemical controls on absorbed water film thickness in unsaturated geological media  

SciTech Connect (OSTI)

Adsorbed water films commonly coat mineral surfaces in unsaturated soils and rocks, reducing flow and transport rates. Therefore, it is important to understand how adsorbed film thickness depends on matric potential, surface chemistry, and solution chemistry. Here, the problem of adsorbed water film thickness is examined through combining capillary scaling with the Derjaguin-Landau-Verwey-Overbeek (DLVO) theory. Novel aspects of this analysis include determining capillary influences on film thicknesses, and incorporating solution chemistry-dependent electrostatic potential at air-water interfaces. Capillary analysis of monodisperse packings of spherical grains provided estimated ranges of matric potentials where adsorbed films are stable, and showed that pendular rings within drained porous media retain most of the 'residual' water except under very low matric potentials. Within drained pores, capillary contributions to thinning of adsorbed films on spherical grains are shown to be small, such that DLVO calculations for flat surfaces are suitable approximations. Hamaker constants of common soil minerals were obtained to determine ranges of the dispersion component to matric potential-dependent film thickness. The pressure component associated with electrical double layer forces was estimated using the compression and linear superposition approximations. The pH-dependent electrical double layer pressure component is the dominant contribution to film thicknesses at intermediate values of matric potential, especially in lower ionic strength solutions (< 10 mol m{sup -3}) on surfaces with higher magnitude electrostatic potentials (more negative than - 50 mV). Adsorbed water films are predicted to usually range in thickness from 1 to 20 nm in drained pores and fractures of unsaturated environments.

Tokunaga, T.

2011-06-14T23:59:59.000Z

388

Engineering guides for estimating cover material thickness and volume for uranium mill tailings  

SciTech Connect (OSTI)

Five nomographs have been prepared that facilitate the estimation of cover thickness and cover material volume for the Uranium Mill Tailing Remedial Action Program. Key parameters determined include the cover thickness with either a surface radon flux or a boundary radon air concentration criterion and the total volume of cover material required for two different treatments of the edge slopes. Also included in the engineering guide are descriptions and representative values for the radon source term, the diffusion coefficients and the key meteorological parameters. 16 refs., 7 figs., 2 tabs.

Rogers, V.C.; Nielson, K.K.; Merrell, G.B.

1982-09-01T23:59:59.000Z

389

Thickness dependent exchange bias in martensitic epitaxial Ni-Mn-Sn thin films  

SciTech Connect (OSTI)

A thickness dependent exchange bias in the low temperature martensitic state of epitaxial Ni-Mn-Sn thin films is found. The effect can be retained down to very small thicknesses. For a Ni{sub 50}Mn{sub 32}Sn{sub 18} thin film, which does not undergo a martensitic transformation, no exchange bias is observed. Our results suggest that a significant interplay between ferromagnetic and antiferromagnetic regions, which is the origin for exchange bias, is only present in the martensite. The finding is supported by ab initio calculations showing that the antiferromagnetic order is stabilized in the phase.

Behler, Anna [IFW Dresden, Institute for Complex Materials, P.O. Box 27 01 16, 01171 Dresden (Germany) [IFW Dresden, Institute for Complex Materials, P.O. Box 27 01 16, 01171 Dresden (Germany); Department of Physics, Institute for Solid State Physics, Dresden University of Technology, 01062 Dresden (Germany); Teichert, Niclas; Auge, Alexander; Hütten, Andreas [Department of Physics, Thin Films and Physics of Nanostructures, Bielefeld University, 33501 Bielefeld (Germany)] [Department of Physics, Thin Films and Physics of Nanostructures, Bielefeld University, 33501 Bielefeld (Germany); Dutta, Biswanath; Hickel, Tilmann [Max-Planck Institut für Eisenforschung, 40237 Düsseldorf (Germany)] [Max-Planck Institut für Eisenforschung, 40237 Düsseldorf (Germany); Waske, Anja [IFW Dresden, Institute for Complex Materials, P.O. Box 27 01 16, 01171 Dresden (Germany)] [IFW Dresden, Institute for Complex Materials, P.O. Box 27 01 16, 01171 Dresden (Germany); Eckert, Jürgen [IFW Dresden, Institute for Complex Materials, P.O. Box 27 01 16, 01171 Dresden (Germany) [IFW Dresden, Institute for Complex Materials, P.O. Box 27 01 16, 01171 Dresden (Germany); Institute of Materials Science, Dresden University of Technology, 01062 Dresden (Germany)

2013-12-15T23:59:59.000Z

390

Method and apparatus for determining diameter and wall thickness of minute hollow spherical shells  

DOE Patents [OSTI]

Method and apparatus for determining diameter and wall thickness of hollow microspheres or shells wherein terminal velocities of shells traveling in fluid-filled conduits of differing diameters are measured. A wall-effect factor is determined as a ratio of the terminal velocities, and shell outside diameter may then be ascertained as a predetermined empirical function of wall-effect factor. For shells of known outside diameter, wall thickness may then be ascertained as a predetermined empirical function of terminal velocity in either conduit.

Steinman, D.A.

1980-05-30T23:59:59.000Z

391

Is cartilage thickness different in young subjects with and without patellofemoral pain?  

E-Print Network [OSTI]

, Stanford, CA, USA { Rehabilitation R&D Center, VA Palo Alto Health Care System, Palo Alto, CA, USA Summary factor in the development of pain in the female population. ÂŞ 2006 OsteoArthritis Research Society in the osteoarthritic population21,24e26 . Cartilage thickness may also play a role in patellofemoral pain because

Delp, Scott

392

Processing Effects for Integrated PZT: Residual Stress, Thickness, and Dielectric Properties  

E-Print Network [OSTI]

Processing Effects for Integrated PZT: Residual Stress, Thickness, and Dielectric Properties Ryan J (PZT) films integrated onto Pt/Ti/SiO2//Si substrates are reported. Sol­gel synthesis and deposition orientation (nominally (111) fiber tex- tured), and measured residual stress. The Stoney method, using laser

Sottos, Nancy R.

393

Variation in hominoid molar enamel thickness Tanya M. Smith a,*, Anthony J. Olejniczak a  

E-Print Network [OSTI]

Variation in hominoid molar enamel thickness Tanya M. Smith a,*, Anthony J. Olejniczak a , Lawrence; fax: C49 341 35 50 399. E-mail addresses: tsmith@eva.mpg.de (T.M. Smith), aolejnic@ic.sunysb.edu (A has been commonly assessed as a linear measurement of enamel visible in worn or naturally fractured

Smith, Tanya M.

394

Radar Measurements of Ice Sheet Thickness of Outlet Glaciers in Greenland D. Braaten+  

E-Print Network [OSTI]

Radar Measurements of Ice Sheet Thickness of Outlet Glaciers in Greenland D. Braaten+ and S of Kansas Lawrence, KS 66045 U.S.A. Abstract ­ We have conducted airborne measurements over the Greenland the mass balance of the Greenland ice sheet, the University of Kansas has been operating an airborne radio

Kansas, University of

395

Evaluation of the Quality of Thick Fibre Composites Using Immersion and Air-  

E-Print Network [OSTI]

Evaluation of the Quality of Thick Fibre Composites Using Immersion and Air- Coupled Ultrasonic. Two ultrasonic through-transmission techniques were evaluated: immersion and air-coupled technique. The immersion system was used for frequencies from 1 MHz to 10 MHz. The frequency range for the air

396

Temperature effects on failure thickness and deflagration-to-detonation transition in PBX 9502 and TATB  

SciTech Connect (OSTI)

The deflagration-to-detonation (DDT) behavior of TATB has been investigated at high temperatures and severe confinement. comparison is made to other common explosives under similar confinement. TATB did not DDT under these conditions. The failure thickness of PBX 9502 at 250{degrees}C has also been determined. Two mm appears to be the limiting value at this temperature.

Asay, B.W.; McAfee, J.B.

1993-04-01T23:59:59.000Z

397

Temperature effects on failure thickness and deflagration-to-detonation transition in PBX 9502 and TATB  

SciTech Connect (OSTI)

The deflagration-to-detonation (DDT) behavior of TATB has been investigated at high temperatures and severe confinement. comparison is made to other common explosives under similar confinement. TATB did not DDT under these conditions. The failure thickness of PBX 9502 at 250[degrees]C has also been determined. Two mm appears to be the limiting value at this temperature.

Asay, B.W.; McAfee, J.B.

1993-01-01T23:59:59.000Z

398

The Influence of Specimen Thickness on the High Temperature Corrosion Behavior of CMSX-4 during  

E-Print Network [OSTI]

. In order to quantify these effects, thin-walled specimens of different thickness (t = 100Ă?500 lm) were used for gas turbine blades due to its excellent mechanical properties combined with high-temperature oxidation resistance. In service, particular in the case of aero engines, the blades are exposed to thermal

Boyer, Edmond

399

Terahertz Sensor for Non-Contact Thickness and Quality Measurement of Automobile Paints of Varying Complexity  

E-Print Network [OSTI]

to resolve coating layers down to a thickness of 18 $mu{hbox{m}}$ and was validated for both single- and multi-layer automobile paint samples. Results of the terahertz measurements were benchmarked against other techniques that are currently used for non...

Su, Ke; Shen, Yao-Chun; Zeitler, J. Axel

2014-06-06T23:59:59.000Z

400

THE MOTION OF SUPERCONDUCTING VORTICES IN THIN FILMS OF VARYING THICKNESS  

E-Print Network [OSTI]

with superconductor/vacuum interfaces is considered. A vortex is #12;rst shown to intersect such an interface normallyTHE MOTION OF SUPERCONDUCTING VORTICES IN THIN FILMS OF VARYING THICKNESS S.J. CHAPMAN #3; D.R. HERON y MATHEMATICAL INSTITUTE OXFORD OX1 3LB UK Abstract. The interaction of superconducting vortices

Chapman, Jon

Note: This page contains sample records for the topic "thickness ft depth" 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

Commercialization of thick film solar cell. Final technical report, 9/15/79-9/14/80  

SciTech Connect (OSTI)

Films of cadmium sulfide and cadmium telluride have been produced by screen printing and sintering. Cadmium sulfide films ten microns thick had a resistivity in the 10 ohm-cm range. A technique was developed for forming a cadmium telluride layer on top of a cadmium sulfide layer. Process control and device preparation are areas requiring further study.

None

1980-01-01T23:59:59.000Z

402

Thermal Conductivity Measurement of Xe-Implanted Uranium Dioxide Thick Films using Multilayer Laser Flash Analysis  

SciTech Connect (OSTI)

The Fuel Cycle Research and Development program's Advanced Fuels campaign is currently pursuing use of ion beam assisted deposition to produce uranium dioxide thick films containing xenon in various morphologies. To date, this technique has provided materials of interest for validation of predictive fuel performance codes and to provide insight into the behavior of xenon and other fission gasses under extreme conditions. In addition to the structural data provided by such thick films, it may be possible to couple these materials with multilayer laser flash analysis in order to measure the impact of xenon on thermal transport in uranium dioxide. A number of substrate materials (single crystal silicon carbide, molybdenum, and quartz) containing uranium dioxide films ranging from one to eight microns in thickness were evaluated using multilayer laser flash analysis in order to provide recommendations on the most promising substrates and geometries for further investigation. In general, the uranium dioxide films grown to date using ion beam assisted deposition were all found too thin for accurate measurement. Of the substrates tested, molybdenum performed the best and looks to be the best candidate for further development. Results obtained within this study suggest that the technique does possess the necessary resolution for measurement of uranium dioxide thick films, provided the films are grown in excess of fifty microns. This requirement is congruent with the material needs when viewed from a fundamental standpoint, as this length scale of material is required to adequately sample grain boundaries and possible second phases present in ceramic nuclear fuel.

Nelson, Andrew T. [Los Alamos National Laboratory

2012-08-30T23:59:59.000Z

403

Thickness limitations in carbon nanotube reinforced silicon nitride coatings synthesized by vapor infiltration  

SciTech Connect (OSTI)

Chemical vapor infiltration is a convenient method for synthesizing carbon nanotube (CNT)-reinforced ceramic coatings. The thickness over which infiltration is relatively uniform is limited by gas phase diffusion in the pore structure. These effects were investigated in two types of silicon nitride matrix composites. With CNTs that were distributed uniformly on the substrate surface dense coatings were limited to thicknesses of several microns. With dual structured CNT arrays produced by photolithography coatings up to 400 gm thick were obtained with minimal residual porosity. Gas transport into these dual structured materials was facilitated by creating micron sized channels between "CNT pillars" (i.e. each pillar consisted of a large number of individual CNTs). The experimental results are consistent with basic comparisons between the rates of gas diffusion and silicon nitride growth in porous structures. This analysis also provides a general insight into optimizing infiltration conditions during the fabrication of thick CNT-reinforced composite coatings. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

Eres, Gyula [ORNL

2012-01-01T23:59:59.000Z

404

Embedding metal electrodes in thick active layers for ITO-free plasmonic organic solar cells  

E-Print Network [OSTI]

Embedding metal electrodes in thick active layers for ITO-free plasmonic organic solar cells%) in optical absorption over both a conventional ITO organic solar cell and a conventional plasmonic organic solar cell with top-loaded metallic grating is predicted in the proposed structure. Optimal positioning

Park, Namkyoo

405

Effects of nanoscale thickness and elastic nonlinearity on measured mechanical properties of polymeric films  

E-Print Network [OSTI]

of polymeric films B. Oommen, K.J. Van Vliet Department of Materials Science and Engineering, Massachusetts the mechanical properties of nanoscale, compliant material volumes such as polymeric films and bio materials of semi-infinite thickness fails to accurately predict the nominal elastic modulus E for polymeric

Van Vliet, Krystyn J.

406

INVESTIGATION OF SEASONAL SEA-ICE THICKNESS VARIABILITY IN THE ROSS SEA Beth A. Schellenberg  

E-Print Network [OSTI]

routinely produced weekly ice charts since the 1970's. From the period of 1995 to 2000, classificationINVESTIGATION OF SEASONAL SEA-ICE THICKNESS VARIABILITY IN THE ROSS SEA Beth A. Schellenberg P1.23 1. INTRODUCTION A number of studies suggest a connections between sea-ice variability

Geiger, Cathleen

407

Light Trapping Textures Designed by Electromagnetic Optimization for Sub-Wavelength Thick Solar Cells  

E-Print Network [OSTI]

Light Trapping Textures Designed by Electromagnetic Optimization for Sub-Wavelength Thick Solar Sciences Division, Lawrence Berkeley National Laboratory July 23, 2013 Abstract Light trapping in solar the surface of the solar cell, where n is the material refractive index. This ray-optics absorption

California at Irvine, University of

408

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

SciTech Connect (OSTI)

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

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

1999-07-01T23:59:59.000Z

409

LIFE CYCLE ASSESSMENT OF A HEMP CONCRETE WALL: IMPACT OF THICKNESS AND COATING.  

E-Print Network [OSTI]

LIFE CYCLE ASSESSMENT OF A HEMP CONCRETE WALL: IMPACT OF THICKNESS AND COATING. Sylvie PRETOT, this study concerns the LCA of an environmentally friendly material used for building construction, hemp construction materials, hemp concrete has a low impact on environment. Moreover, hemp concrete contributes

Paris-Sud XI, Université de

410

Lanthanum silicate gate dielectric stacks with subnanometer equivalent oxide thickness utilizing an interfacial silica consumption reaction  

E-Print Network [OSTI]

Lanthanum silicate gate dielectric stacks with subnanometer equivalent oxide thickness utilizing-8087 Received 13 April 2005; accepted 6 June 2005; published online 26 July 2005 A silicate reaction between process route to interface elimination, while producing a silicate dielectric with a higher temperature

Garfunkel, Eric

411

Improvement of radar ice-thickness measurements of Greenland outlet glaciers using SAR processing  

E-Print Network [OSTI]

Extensive aircraft-based radar ice-thickness measurements over the interior and outlet-glacier regions of the Greenland ice sheet have been obtained by the University of Kansas since 1993, with the latest airborne surveys conducted in May 2001...

Braaten, David A.; Gogineni, S. Prasad; Tammana, Dilip; Namburi, Saikiran; Paden, John; Gurumoorthy, Krishna K.

2002-01-01T23:59:59.000Z

412

1 Microscopic and environmental controls on the spacing and thickness of segregated 2 ice lenses  

E-Print Network [OSTI]

water, and ice conspire with the prevailing environmental conditions 52 to produce macroscopic ice by Henry (2000). The first comprehensive and tractable model 57 for ice lens growth was produced by O1 Microscopic and environmental controls on the spacing and thickness of segregated 2 ice lenses 3

Rempel, Alan W.

413

FLOW CONDITIONING DESIGN IN THICK LIQUID PROTECTION S.G. Durbin  

E-Print Network [OSTI]

issuing downwards from nozzles of thickness (small dimension) = 1 cm into ambient air for Reynolds conditioner was studied. As the flow conditioning element immediately upstream of the nozzle inlet, fine, and that free-surface fluctuations are strongly affected by changes in flow conditioner design, even in the near

California at San Diego, University of

414

Forensic Anthropology Population Data Facial reconstruction: Soft tissue thickness values for South African black females  

E-Print Network [OSTI]

Forensic Anthropology Population Data Facial reconstruction: Soft tissue thickness values for South African black females D. Cavanagh, M. Steyn * Forensic Anthropology Research Centre, Department of Anatomy, University of Pretoria, P.O. Box 2034, Pretoria 0001, South Africa 1. Introduction Forensic facial

Frey, Pascal

415

Muons in air showers at the Pierre Auger Observatory: Measurement of atmospheric production depth  

E-Print Network [OSTI]

The surface detector array of the Pierre Auger Observatory provides information about the longitudinal development of the muonic component of extensive air showers. Using the timing information from the flash analog-to-digital converter traces of surface detectors far from the shower core, it is possible to reconstruct a muon production depth distribution. We characterize the goodness of this reconstruction for zenith angles around 60 deg. and different energies of the primary particle. From these distributions we define X(mu)max as the depth along the shower axis where the production of muons reaches maximum. We explore the potentiality of X(mu)max as a useful observable to infer the mass composition of ultrahigh-energy cosmic rays. Likewise, we assess its ability to constrain hadronic interaction models.

Pierre Auger Collaboration

2014-07-22T23:59:59.000Z

416

Report on Analysis of Forest Floor Bulk Density and Depth at the Savannah River Site.  

SciTech Connect (OSTI)

The forest floor data from the Savannah River Site consists of two layers, the litter layer and the duff layer. The purpose for the study was to determine bulk density conversion factors to convert litter and duff depth values in inches to forest floor fuel values in tons per acre. The primary objective was to collect litter and duff samples to adequately characterize forest floor depth and bulk density for combinations of 4 common forest types (loblolly/slash pine, longleaf pine, pine and hardwood mix, upland hardwood), 3 age classes (5-20, 20-40, 40+ years old) and 3 categories of burning history (0-3, 3-10, 10+ years since last burn).

Bernard R. Parresol

2005-10-01T23:59:59.000Z

417

Tsunami and acoustic-gravity waves in water of constant depth  

SciTech Connect (OSTI)

A study of wave radiation by a rather general bottom displacement, in a compressible ocean of otherwise constant depth, is carried out within the framework of a three-dimensional linear theory. Simple analytic expressions for the flow field, at large distance from the disturbance, are derived. Realistic numerical examples indicate that the Acoustic-Gravity waves, which significantly precede the Tsunami, are expected to leave a measurable signature on bottom-pressure records that should be considered for early detection of Tsunami.

Hendin, Gali; Stiassnie, Michael [Faculty of Civil and Environmental Engineering, Technion – Israel institute of technology, Haifa 32000 (Israel)] [Faculty of Civil and Environmental Engineering, Technion – Israel institute of technology, Haifa 32000 (Israel)

2013-08-15T23:59:59.000Z

418

Depth Profile of Uncompensated Spins in an Exchange-Bias System  

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: Vegetation Proposed Newcatalyst phasesData Files

419

Constraints on primordial magnetic fields from the optical depth of the cosmic microwave background  

E-Print Network [OSTI]

Damping of magnetic fields via ambipolar diffusion and decay of magnetohydrodynamical (MHD) turbulence in the post decoupling era heats the intergalactic medium (IGM). Collisional ionization weakly ionizes the IGM, producing an optical depth to scattering of the cosmic microwave background (CMB). The optical depth generated at $z\\gg 10$ does not affect the "reionization bump" of the CMB polarization power spectrum at low multipoles, but affects the temperature and polarization power spectra at high multipoles. Using the Planck 2013 temperature and lensing data together with the WMAP 9-year polarization data, we constrain the present-day field strength, $B_0$, smoothed over the damping length at the decoupling epoch as a function of the spectral index, $n_B$. We find the 95% upper bounds of $B_0<0.56$, 0.31, and 0.14 nG for $n_B=-2.9$, $-2.5$, and $-1.5$, respectively. For these spectral indices, the optical depth is dominated by dissipation of the decaying MHD turbulence that occurs shortly after the decou...

Kunze, Kerstin E

2015-01-01T23:59:59.000Z

420

Stochastic estimation of aquifer geometry using seismic refraction data with borehole depth constraints  

SciTech Connect (OSTI)

We develop a Bayesian model to invert surface seismic refraction data with depth constraints from boreholes for characterization of aquifer geometry and apply it to seismic and borehole data sets collected at the contaminated Oak Ridge National Laboratory site in Tennessee. Rather than the traditional approach of first inverting the seismic arrival times for seismic velocity and then using that information to aid in the spatial interpolation of wellbore data, we jointly invert seismic first arrival time data and wellbore based information, such as depths of key lithological boundaries. We use a staggered grid finite difference algorithm with second order accuracy in time and fourth order accuracy in space to model seismic full waveforms and use an automated method to pick the first arrival times. We use Markov Chain Monte Carlo methods to draw many samples from the joint posterior probability distribution, on which we can estimate the key interfaces and their associated uncertainty as a function of horizontal location and depth. We test the developed method on both synthetic and field case studies. The synthetic studies show that the developed method is effective at rigorous incorporation of multiscale data and the Bayesian inversion reduces uncertainty in estimates of aquifer zonation. Applications of the approach to field data, including two surface seismic profiles located 620 m apart from each other, reveal the presence of a low velocity subsurface zone that is laterally persistent. This geophysically defined feature is aligned with the plume axis, suggesting it may serve as an important regional preferential flow pathway.

Chen, Jinsong [Lawrence Berkeley National Laboratory (LBNL); Hubbard, Susan S [Lawrence Berkeley National Laboratory (LBNL); Korneev, V. [Lawrence Berkeley National Laboratory (LBNL); Gaines, David [University of Tennessee; Baker, Gregory S. [University of Tennessee; Watson, David [ORNL

2010-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "thickness ft depth" 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

Method for the depth corrected detection of ionizing events from a co-planar grids sensor  

DOE Patents [OSTI]

A method for the detection of ionizing events utilizing a co-planar grids sensor comprising a semiconductor substrate, cathode electrode, collecting grid and non-collecting grid. The semiconductor substrate is sensitive to ionizing radiation. A voltage less than 0 Volts is applied to the cathode electrode. A voltage greater than the voltage applied to the cathode is applied to the non-collecting grid. A voltage greater than the voltage applied to the non-collecting grid is applied to the collecting grid. The collecting grid and the non-collecting grid are summed and subtracted creating a sum and difference respectively. The difference and sum are divided creating a ratio. A gain coefficient factor for each depth (distance between the ionizing event and the collecting grid) is determined, whereby the difference between the collecting electrode and the non-collecting electrode multiplied by the corresponding gain coefficient is the depth corrected energy of an ionizing event. Therefore, the energy of each ionizing event is the difference between the collecting grid and the non-collecting grid multiplied by the corresponding gain coefficient. The depth of the ionizing event can also be determined from the ratio.

De Geronimo, Gianluigi (Syosset, NY); Bolotnikov, Aleksey E. (South Setauket, NY); Carini, Gabriella (Port Jefferson, NY)

2009-05-12T23:59:59.000Z

422

Probing the electronic structure of graphene sheets with various thicknesses by scanning transmission X-ray microscopy  

SciTech Connect (OSTI)

The electronic structure of an aggregation of graphene sheets with various thicknesses was probed by scanning transmission X-ray microscopy. A uniform oxidation of the graphene sheets in the flat area was observed regardless of the thickness, while in the folded area the result could be strongly affected by the geometry. Moreover, thick parts of the aggregation showed strong angle-dependence to the incident X-ray, while thin parts showed less angle-dependence, which might be related to the surface wrinkles and ripples. The electronic structure differences due to the geometry and thickness suggest a complicated situation in the aggregation of graphene sheets.

Bai, Lili; Liu, Jinyin; Zhao, Guanqi; Gao, Jing; Sun, Xuhui, E-mail: xhsun@suda.edu.cn, E-mail: jzhong@suda.edu.cn; Zhong, Jun, E-mail: xhsun@suda.edu.cn, E-mail: jzhong@suda.edu.cn [Soochow University-Western University Centre for Synchrotron Radiation Research, Institute of Functional Nano and Soft Materials Laboratory (FUNSOM) and Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123 (China)] [Soochow University-Western University Centre for Synchrotron Radiation Research, Institute of Functional Nano and Soft Materials Laboratory (FUNSOM) and Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123 (China)

2013-12-16T23:59:59.000Z

423

MAPPING THE STELLAR STRUCTURE OF THE MILKY WAY THICK DISK AND HALO USING SEGUE PHOTOMETRY  

SciTech Connect (OSTI)

We map the stellar structure of the Galactic thick disk and halo by applying color-magnitude diagram (CMD) fitting to photometric data from the Sloan Extension for Galactic Understanding and Exploration (SEGUE) survey. The SEGUE imaging scans allow, for the first time, a comprehensive analysis of Milky Way structure at both high and low latitudes using uniform Sloan Digital Sky Survey photometry. Incorporating photometry of all relevant stars simultaneously, CMD fitting bypasses the need to choose single tracer populations. Using old stellar populations of differing metallicities as templates, we obtain a sparse three-dimensional map of the stellar mass distribution at |Z|>1 kpc. Fitting a smooth Milky Way model comprising exponential thin and thick disks and an axisymmetric power-law halo allows us to constrain the structural parameters of the thick disk and halo. The thick-disk scale height and length are well constrained at 0.75 {+-} 0.07 kpc and 4.1 {+-} 0.4 kpc, respectively. We find a stellar halo flattening within {approx}25 kpc of c/a = 0.88 {+-} 0.03 and a power-law index of 2.75 {+-} 0.07 (for 7 kpc {approx_lt}R{sub GC} {approx_lt} 30 kpc). The model fits yield thick-disk and stellar halo densities at the solar location of {rho}{sub thick,sun} = 10{sup -2.3{+-}0.1} M{sub sun} pc{sup -3} and {rho}{sub halo,sun} = 10{sup -4.20{+-}0.05} M{sub sun} pc{sup -3}, averaging over any substructures. Our analysis provides the first clear in situ evidence for a radial metallicity gradient in the Milky Way's stellar halo: within R {approx_lt} 15 kpc the stellar halo has a mean metallicity of [Fe/H] {approx_equal} -1.6, which shifts to [Fe/H] {approx_equal} -2.2 at larger radii, in line with the two-component halo deduced by Carollo et al. from a local kinematic analysis. Subtraction of the best-fit smooth and symmetric model from the overall density maps reveals a wealth of substructures at all latitudes, some attributable to known streams and overdensities, and some new. A simple warp cannot account for the low latitude substructure, as overdensities occur simultaneously above and below the Galactic plane.

De Jong, Jelte T. A.; Rix, Hans-Walter; Martin, Nicolas F. [Max-Planck-Institut fuer Astronomie, Koenigstuhl 17, D-69117 Heidelberg (Germany); Yanny, Brian [Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510 (United States); Dolphin, Andrew E. [Raytheon Company, 1151 East Hermans Road, Tucson, AZ 85756 (United States); Beers, Timothy C., E-mail: dejong@mpia.d [Department of Physics and Astronomy and JINA: Joint Institute for Nuclear Astrophysics, Michigan State University, East Lansing, MI 48824 (United States)

2010-05-01T23:59:59.000Z

424

Effects of soil moisture and water depth on ERS SAR backscatter measurements from an Alaskan wetland complex  

E-Print Network [OSTI]

2009 Accepted 17 April 2009 Keywords: Wetlands Boreal region Synthetic aperture radar Water level SoilEffects of soil moisture and water depth on ERS SAR backscatter measurements from an Alaskan was negatively correlated to water depth in all open (non-forested) wetlands when water table levels were more

Turetsky, Merritt

425

IMAGE BASED RENDERING WITH DEPTH CAMERAS: HOW MANY ARE NEEDED? Christopher Gilliam, James Pearson, Mike Brookes and Pier Luigi Dragotti  

E-Print Network [OSTI]

IMAGE BASED RENDERING WITH DEPTH CAMERAS: HOW MANY ARE NEEDED? Christopher Gilliam, James Pearson London Exhibition Road, SW7 2AZ, London, United Kingdom. ABSTRACT Image based rendering is a technique of traditional color images with depth images. This combination promises to improve the rendering quality

Dragotti, Pier Luigi

426

American Public Opinion on Global Warming in the American States: An In-Depth Study of Florida, Maine, and Massachusetts  

E-Print Network [OSTI]

1 American Public Opinion on Global Warming in the American States: An In-Depth Study of Florida Public Opinion on Global Warming in the American States: An In-Depth Study of Florida, Maine warming has been happening · What might have caused global warming · Whether global warming

Ford, Andrew

427

Ferroelectric polymer-ceramic composite thick films for energy storage applications  

SciTech Connect (OSTI)

We have successfully fabricated large area free standing polyvinylidene fluoride -Pb(Zr{sub 0.52}Ti{sub 0.48})O{sub 3} (PVDF-PZT) ferroelectric polymer-ceramic composite (wt% 80–20, respectively) thick films with an average diameter (d) ?0.1 meter and thickness (t) ?50 ?m. Inclusion of PZT in PVDF matrix significantly enhanced dielectric constant (from 10 to 25 at 5 kHz) and energy storage capacity (from 11 to 14 J/cm{sup 3}, using polarization loops), respectively, and almost similar leakage current and mechanical strength. Microstructural analysis revealed the presence of ? and ? crystalline phases and homogeneous distribution of PZT crystals in PVDF matrix. It was also found that apart from the microcrystals, well defined naturally developed PZT nanocrystals were embedded in PVDF matrix. The observed energy density indicates immense potential in PVDF-PZT composites for possible applications as green energy and power density electronic elements.

Singh, Paritosh; Borkar, Hitesh; Singh, B. P.; Singh, V. N.; Kumar, Ashok, E-mail: ashok553@nplindia.org [CSIR-National Physical Laboratory, Dr. K. S. Krishnan Marg, New Delhi 110012 (India)

2014-08-15T23:59:59.000Z

428

Fermion resonances on a thick brane with a piecewise warp factor  

SciTech Connect (OSTI)

In this paper, we mainly investigate the problems of resonances of massive Kaluza-Klein (KK) fermions on a single scalar constructed thick brane with a piecewise warp factor matching smoothly. The distance between two boundaries and the other parameters are determined by one free parameter through three junction conditions. For the generalized Yukawa coupling {eta}{Psi}{phi}{sup k{Psi}} with odd k=1,3,5,..., the mass eigenvalue m, width {Gamma}, lifetime {tau}, and maximal probability P{sub max} of fermion resonances are obtained. Our numerical calculations show that the brane without internal structure also favors the appearance of resonant states for both left- and right-handed fermions. The scalar-fermion coupling and the thickness of the brane influence the resonant behaviors of the massive KK fermions.

Li Haitao; Liu Yuxiao; Zhao Zhenhua; Guo Heng [Institute of Theoretical Physics, Lanzhou University, Lanzhou 730000 (China)

2011-02-15T23:59:59.000Z

429

Standard guide for mutual inductance bridge applications for wall thickness determinations in boiler tubing  

E-Print Network [OSTI]

1.1 This guide describes a procedure for obtaining relative wall thickness indications in ferromagnetic and non-ferromagnetic steels using the mutual inductance bridge method. The procedure is intended for use with instruments capable of inducing two substantially identical magnetic fields and noting the change in inductance resulting from differing amounts of steel. It is used to distinguish acceptable wall thickness conditions from those which could place tubular vessels or piping at risk of bursting under high temperature and pressure conditions. 1.2 This guide is intended to satisfy two general needs for users of industrial Mutual Inductance Bridge (MIB) equipment: (1) the need for a tutorial guide addressing the general principles of Mutual Inductance Bridges as they apply to industrial piping; and (2) the need for a consistent set of MIB performance parameter definitions, including how these performance parameters relate to MIB system specifications. Potential users and buyers, as well as experienced M...

American Society for Testing and Materials. Philadelphia

2010-01-01T23:59:59.000Z

430

High efficiency proton beam generation through target thickness control in femtosecond laser-plasma interactions  

SciTech Connect (OSTI)

Bright proton beams with maximum energies of up to 30?MeV have been observed in an experiment investigating ion sheath acceleration driven by a short pulse (<50 fs) laser. The scaling of maximum proton energy and total beam energy content at ultra-high intensities of ?10{sup 21} W cm{sup ?2} was investigated, with the interplay between target thickness and laser pre-pulse found to be a key factor. While the maximum proton energies observed were maximised for ?m-thick targets, the total proton energy content was seen to peak for thinner, 500?nm, foils. The total proton beam energy reached up to 440 mJ (a conversion efficiency of 4%), marking a significant step forward for many laser-driven ion applications. The experimental results are supported by hydrodynamic and particle-in-cell simulations.

Green, J. S., E-mail: james.green@stfc.ac.uk; Robinson, A. P. L.; Booth, N.; Carroll, D. C.; Rusby, D.; Wilson, L. [Central Laser Facility, STFC Rutherford Appleton Laboratory, Chilton, Oxon OX11 0QX (United Kingdom); Dance, R. J. [York Plasma Institute, Department of Physics, University of York, York YO10 5DD (United Kingdom); Gray, R. J.; MacLellan, D. A.; McKenna, P. [SUPA, Department of Physics, University of Strathclyde, Glasgow G4 0NG (United Kingdom); Murphy, C. D. [SUPA, University of Edinburgh, Mayfield Road, Edinburgh EH9 3JZ (United Kingdom)

2014-05-26T23:59:59.000Z

431

Method for rapid, controllable growth and thickness, of epitaxial silicon films  

DOE Patents [OSTI]

A method of producing epitaxial silicon films on a c-Si wafer substrate using hot wire chemical vapor deposition by controlling the rate of silicon deposition in a temperature range that spans the transition from a monohydride to a hydrogen free silicon surface in a vacuum, to obtain phase-pure epitaxial silicon film of increased thickness is disclosed. The method includes placing a c-Si substrate in a HWCVD reactor chamber. The method also includes supplying a gas containing silicon at a sufficient rate into the reaction chamber to interact with the substrate to deposit a layer containing silicon thereon at a predefined growth rate to obtain phase-pure epitaxial silicon film of increased thickness.

Wang, Qi (Littleton, CO); Stradins, Paul (Golden, CO); Teplin, Charles (Boulder, CO); Branz, Howard M. (Boulder, CO)

2009-10-13T23:59:59.000Z

432

Tunneling density of states as a function of thickness in superconductor/ strong ferromagnet bilayers  

SciTech Connect (OSTI)

We have made an experimental study of the tunneling density of states (DOS) in strong ferromagnetic thin films (CoFe) in proximity with a thick superconducting film (Nb) as a function of d{sub F}, the ferromagnetic thickness. Remarkably, we find that as d{sub F} increases, the superconducting DOS exhibits a scaling behavior in which the deviations from the normal-state conductance have a universal shape that decreases exponentially in amplitude with characteristic length d* {approx} 0.4 nm. We do not see oscillations in the DOS as a function of d{sub F}, as expected from predictions based on the Usadel equations, although an oscillation in T{sub c}(d{sub F}) has been seen in the same materials.

Reymond, S.

2010-04-29T23:59:59.000Z

433

Neutron-skin thickness from the study of the anti-analog giant dipole resonance  

SciTech Connect (OSTI)

The {gamma}-decay of the anti-analog of the giant dipole resonance (AGDR) to the isobaric analog state has been measured following the p({sup 124}Sn,n) reaction at a beam energy of 600 MeV/nucleon. The energy of the transition was also calculated with state-of-the-art self-consistent relativistic random-phase approximation (RPA) and turned out to be very sensitive to the neutronskin thickness ({Delta}R{sub pn}). By comparing the theoretical results with the measured one, the {Delta}R{sub pn} value for {sup 124}Sn was deduced to be 0.21 {+-} 0.07 fm, which agrees well with the previous results. The present method offers new possibilities for measuring the neutron-skin thicknesses of very exotic isotopes.

Krasznahorkay, A.; Stuhl, L.; Csatlos, M.; Algora, A. [Inst. of Nucl. Res. of the Hungarian Acad. of Sci. (ATOMKI), H-4001 Debrecen, P.O. Box 51 (Hungary); Physics Department, Faculty of Science, University of Zagreb (Croatia); Kernfysisch Versneller Instituut, University of Groningen, Groningen (Netherlands); and others

2012-10-20T23:59:59.000Z

434

Atmospheric pressure spatial atomic layer deposition web coating with in situ monitoring of film thickness  

SciTech Connect (OSTI)

Spectral reflectometry was implemented as a method for in situ thickness monitoring in a spatial atomic layer deposition (ALD) system. Al{sub 2}O{sub 3} films were grown on a moving polymer web substrate at 100?°C using an atmospheric pressure ALD web coating system, with film growth of 0.11–0.13?nm/cycle. The modular coating head design and the in situ monitoring allowed for the characterization and optimization of the trimethylaluminum and water precursor exposures, purge flows, and web speed. A thickness uniformity of ±2% was achieved across the web. ALD cycle times as low as 76?ms were demonstrated with a web speed of 1?m/s and a vertical gap height of 0.5?mm. This atmospheric pressure ALD system with in situ process control demonstrates the feasibility of low-cost, high throughput roll-to-roll ALD.

Yersak, Alexander S.; Lee, Yung C. [Department of Mechanical Engineering, University of Colorado at Boulder, 1045 Regent Drive, 422 UCB, Boulder, Colorado 80309-0422 (United States); Spencer, Joseph A.; Groner, Markus D., E-mail: mgroner@aldnanosolutions.com [ALD NanoSolutions, Inc., 580 Burbank Street, Unit 100, Broomfield, Colorado 80020 (United States)

2014-01-15T23:59:59.000Z

435

Post-cast EDM method for reducing the thickness of a turbine nozzle wall  

DOE Patents [OSTI]

A post-cast EDM process is used to remove material from the interior surface of a nozzle vane cavity of a turbine. A thin electrode is passed through the cavity between opposite ends of the nozzle vane and displaced along the interior nozzle wall to remove the material along a predetermined path, thus reducing the thickness of the wall between the cavity and the external surface of the nozzle. In another form, an EDM process employing a profile as an electrode is disposed in the cavity and advanced against the wall to remove material from the wall until the final wall thickness is achieved, with the interior wall surface being complementary to the profile surface.

Jones, Raymond Joseph (Duanesburg, NY); Bojappa, Parvangada Ganapathy (Schenectady, NY); Kirkpatrick, Francis Lawrence (Galway, NY); Schotsch, Margaret Jones (Clifton Park, NY); Rajan, Rajiv (Guilderland, NY); Wei, Bin (Mechanicville, NY)

2002-01-01T23:59:59.000Z

436

Thickness measurement of aluminum, titanium, titanium silicide, and tungsten silicide films by x-ray fluorescence  

SciTech Connect (OSTI)

X-ray fluorescence (XRF) has received a great deal of attention in the last few years as a quantitative means of determining both the stoichiometry and thickness of many different kinds of films. Examples include Ag and Cu films on mica substrates, Sn-Pb alloys on steel substrates, Al-Ti multilayers on Cu substrates and oxide films on silicon substrates. In XRF the sample is irradiated with x-rays which in turn cause x-rays to be given off by the sample. These x-rays that are given off by the sample can then be analyzed both for energy and intensity. The energy of the x-rays is characteristic of the elemental makeup of the sample and the intensity of the x-rays is dependent on how much of the particular element is present. The intensity then can be related to the thickness of a film if the stoichiometry of the film can be assumed constant. With the increased interest in silicides and more recently, the self-aligned silicide (salicide) process (8-10) for VLSI applications, in-line process monitoring of silicide film thickness has become important to integrated circuit manufacturing. In this study, the number of x-ray photons given of by Al, Ti, titanium silicide, and tungsten silicide films on silicon-based substrates was quantified so that a film thickness for an unknown sample could then be determined easily. In addition, XRF is a more accurate technique, limited principally by the accuracy technique, limited principally by the accuracy of the reference used and the amount of time the x-ray photons are counted.

Ernst, S.; Lee, C.O.; Lee, J.J. (Motorola, Inc., Advanced Products Research and Development Lab., Austin, TX (US))

1988-08-01T23:59:59.000Z

437

Infrared Imaging of the Nanometer-Thick Accumulation Layer in Organic Field-Effect Transistors  

E-Print Network [OSTI]

We report on infrared (IR) spectro-microscopy of the electronic excitations in nanometer-thick accumulation layers in FET devices based on poly(3-hexylthiophene). IR data allows us to explore the charge injection landscape and uncovers the critical role of the gate insulator in defining relevant length scales. This work demonstrates the unique potential of IR spectroscopy for the investigation of physical phenomena at the nanoscale occurring at the semiconductor-insulator interface in FET devices.

Z. Q. Li; G. M. Wang; N. Sai; D. Moses; M. C. Martin; M. Di Ventra; A. J. Heeger; D. N. Basov

2006-02-09T23:59:59.000Z

438

Unique Challenges Accompany Thick-Shell CdSe/nCdS (n > 10) Nanocrystal Synthesis  

SciTech Connect (OSTI)

Thick-shell CdSe/nCdS (n {ge} 10) nanocrystals were recently reported that show remarkably suppressed fluorescence intermittency or 'blinking' at the single-particle level as well as slow rates of Auger decay. Unfortunately, whereas CdSe/nCdS nanocrystal synthesis is well-developed up to n {le} 6 CdS monolayers (MLs), reproducible syntheses for n {ge} 10 MLs are less understood. Known procedures sometimes result in homogeneous CdS nucleation instead of heterogeneous, epitaxial CdS nucleation on CdSe, leading to broad and multimodal particle size distributions. Critically, obtained core/shell sizes are often below those desired. This article describes synthetic conditions specific to thick-shell growth (n {ge} 10 and n {ge} 20 MLs) on both small (sub2 nm) and large (>4.5 nm) CdSe cores. We find added secondary amine and low concentration of CdSe cores and molecular precursors give desired core/shell sizes. Amine-induced, partial etching of CdSe cores results in apparent shell-thicknesses slightly beyond those desired, especially for very-thick shells (n {ge} 20 MLs). Thermal ripening and fast precursor injection lead to undesired homogeneous CdS nucleation and incomplete shell growth. Core/shells derived from small CdSe (1.9 nm) have longer PL lifetimes and more pronounced blinking at single-particle level compared with those derived from large CdSe (4.7 nm). We expect our new synthetic approach will lead to a larger throughput of these materials, increasing their availability for fundamental studies and applications.

Guo, Y; Marchuk, K; Abraham, R; Sampat, S; Abraham, R.; Fang, N; Malko, AV; Vela, J

2011-12-23T23:59:59.000Z

439

A reliable control system for measurement on film thickness in copper chemical mechanical planarization system  

SciTech Connect (OSTI)

In recent years, a variety of film thickness measurement techniques for copper chemical mechanical planarization (CMP) are subsequently proposed. In this paper, the eddy-current technique is used. In the control system of the CMP tool developed in the State Key Laboratory of Tribology, there are in situ module and off-line module for measurement subsystem. The in situ module can get the thickness of copper film on wafer surface in real time, and accurately judge when the CMP process should stop. This is called end-point detection. The off-line module is used for multi-points measurement after CMP process, in order to know the thickness of remained copper film. The whole control system is structured with two levels, and the physical connection between the upper and the lower is achieved by the industrial Ethernet. The process flow includes calibration and measurement, and there are different algorithms for two modules. In the process of software development, C++ is chosen as the programming language, in combination with Qt OpenSource to design two modules’ GUI and OPC technology to implement the communication between the two levels. In addition, the drawing function is developed relying on Matlab, enriching the software functions of the off-line module. The result shows that the control system is running stably after repeated tests and practical operations for a long time.

Li, Hongkai; Qu, Zilian; Zhao, Qian; Tian, Fangxin; Zhao, Dewen; Meng, Yonggang; Lu, Xinchun [State Key Laboratory of Tribology, Tsinghua University, Beijing 100084 (China)] [State Key Laboratory of Tribology, Tsinghua University, Beijing 100084 (China)

2013-12-15T23:59:59.000Z

440

Thickness-based adaptive mesh refinement methods for multi-phase flow simulations with thin regions  

SciTech Connect (OSTI)

In numerical simulations of multi-scale, multi-phase flows, grid refinement is required to resolve regions with small scales. A notable example is liquid-jet atomization and subsequent droplet dynamics. It is essential to characterize the detailed flow physics with variable length scales with high fidelity, in order to elucidate the underlying mechanisms. In this paper, two thickness-based mesh refinement schemes are developed based on distance- and topology-oriented criteria for thin regions with confining wall/plane of symmetry and in any situation, respectively. Both techniques are implemented in a general framework with a volume-of-fluid formulation and an adaptive-mesh-refinement capability. The distance-oriented technique compares against a critical value, the ratio of an interfacial cell size to the distance between the mass center of the cell and a reference plane. The topology-oriented technique is developed from digital topology theories to handle more general conditions. The requirement for interfacial mesh refinement can be detected swiftly, without the need of thickness information, equation solving, variable averaging or mesh repairing. The mesh refinement level increases smoothly on demand in thin regions. The schemes have been verified and validated against several benchmark cases to demonstrate their effectiveness and robustness. These include the dynamics of colliding droplets, droplet motions in a microchannel, and atomization of liquid impinging jets. Overall, the thickness-based refinement technique provides highly adaptive meshes for problems with thin regions in an efficient and fully automatic manner.

Chen, Xiaodong [The State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190 (China); Yang, Vigor, E-mail: vigor.yang@aerospace.gatech.edu [School of Aerospace Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0150 (United States)

2014-07-15T23:59:59.000Z

Note: This page contains sample records for the topic "thickness ft depth" 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

Effect of Substrate Thickness on Oxide Scale Spallation for Solid Oxide Fuel Cells  

SciTech Connect (OSTI)

In this paper, the effect of the ferritic substrate's thickness on the delamination/spallation of the oxide scale was investigated experimentally and numerically. At the high-temperature oxidation environment of solid oxide fuel cells (SOFCs), a combination of growth stress with thermal stresses may lead to scale delamination/buckling and eventual spallation during SOFC stack cooling, even leading to serious degradation of cell performance. The growth stress is induced by the growth of the oxide scale on the scale/substrate interface, and thermal stress is induced by a mismatch of the coefficient of thermal expansion between the oxide scale and the substrate. The numerical results show that the interfacial shear stresses, which are the driving force of scale delamination between the oxide scale and the ferritic substrate, increase with the growth of the oxide scale and also with the thickness of the ferritic substrate; i.e., the thick ferritic substrate can easily lead to scale delamination and spallation. Experimental observation confirmed the predicted results of the delamination and spallation of the oxide scale on the ferritic substrate.

Liu, Wenning N.; Sun, Xin; Stephens, Elizabeth V.; Khaleel, Mohammad A.

2011-07-01T23:59:59.000Z

442

The effect of mix on capsule yields as a function of shell thickness and gas fill  

SciTech Connect (OSTI)

An investigation of direct drive capsules with different shell thicknesses and gas fills was conducted to examine the amount of shock induced (Richtmyer-Meshkov) mix versus Rayleigh-Taylor mix from deceleration of the implosion. The RAGE (Eulerian) code with a turbulent mix model was used to model these capsules for neutron yields along with time-dependent mix amounts. The amount of Richtmyer-Meshkov induced mix from the shock breaking out of the shell is about 0.1??g (0.15??m of shell material), while the Rayleigh-Taylor mix is of order 1??g and determines the mixed simulation yield. The simulations were able to calculate a yield over mix (YOM) ratio (experiment/mix simulation) between 0.5 and 1.0 for capsules with shell thicknesses ranging from 7.5 to 20??m and with gas fills between 3.8 and 20?atm of D{sub 2} or DT. The simulated burn averaged T{sub ion} values typically lie with 0.5?keV of the data, which is within the measurement error. For capsules with shell thicknesses >25??m, the YOM values drop to 0.10?±?0.05, suggesting that some unmodeled effect needs to be accounted for in the thickest capsules.

Bradley, P. A., E-mail: pbradley@lanl.gov [Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

2014-06-15T23:59:59.000Z

443

Localization and mass spectra of fermions on symmetric and asymmetric thick branes  

SciTech Connect (OSTI)

A three-parameter (positive odd integer s, thickness factor {lambda}, and asymmetry factor a) family of asymmetric thick brane solutions in five dimensions were constructed from a two-parameter (s and {lambda}) family of symmetric ones in by R. Guerrero, R. O. Rodriguez, and R. Torrealba in [Phys. Rev. D 72, 124012 (2005).]. The values s=1 and s{>=}3 correspond to single branes and double branes, respectively. These branes have very rich inner structure. In this paper, by presenting the mass-independent potentials of Kaluza-Klein (KK) modes in the corresponding Schroedinger equations, we investigate the localization and mass spectra of fermions on the symmetric and asymmetric thick branes in an anti-de Sitter background. In order to analyze the effect of gravity-fermion interaction (i.e., the effect of the inner structure of the branes) and scalar-fermion interaction to the spectrum of fermion KK modes, we consider three kinds of typical kink-fermion couplings. The spectra of left chiral fermions for these couplings consist of a bound zero mode and a series of gapless continuous massive KK modes, some discrete bound KK modes including zero mode (exist mass gaps), and a series of continuous massive KK modes, infinite discrete bound KK modes, respectively. The structures of the spectra are investigated in detail.

Liu Yuxiao; Fu, C.-E; Zhao Li; Duan Yishi [Institute of Theoretical Physics, Lanzhou University, Lanzhou 730000 (China)

2009-09-15T23:59:59.000Z

444

Analysis Procedures for Double-Shell Target Concentricity and Wall Thickness  

SciTech Connect (OSTI)

The LLNL Target Fabrication Team (TFT) asked the Center for Non-Destructive Characterization (CNDC) to use CNDC's KCAT or Xradia's Micro computed tomography (CT) system to collect three-dimensional (3D) tomographic data of a set of double-shell targets and determine, among other items, the following: (1) the concentricity of the outer surface of the inner shell with respect to the inner surface of the outer shell with an accuracy of 1-2 micrometers, and (2) the wall thickness uniformity of the outer shell with an accuracy of 1-2 micrometers. The CNDC used Xradia's Micro CT system to collect the data. Bill Brown performed the concentricity analysis, and John Sain performed the wall thickness uniformity analysis. Harry Martz provided theoretical guidance, and Dan Schneberk contributed technical (software) support. This document outlines the analysis procedures used in each case. The double-shell targets, as shown in Figures 1 and 2, consist of an inner shell (or capsule), a two-piece spherical aerogel intermediary shell, and a two-piece spherical outer shell. The three elements are designed and fabricated to be concentric--with the aerogel shell acting as a spacer between the inner shell and outer shell--with no to minimum air gaps in the final assembly. The outer diameters of the aerogel and outer shells are 444 and 550 micrometers, respectively, so the wall thickness of the outer shell is 53 micrometers.

Sain, J D; Brown, W D; Martz, H E; Schneberk, D J

2006-03-02T23:59:59.000Z

445

Thickness monitoring of graphene on SiC using low-energy electron diffraction P. J. Fisher  

E-Print Network [OSTI]

1 Thickness monitoring of graphene on SiC using low-energy electron diffraction P. J. Fisher IBM T of epitaxial graphene on SiC is monitored in-situ using low-energy electron diffraction (LEED). The possibility of using LEED as an in-situ thickness monitor of the graphene is examined. The ratio of primary diffraction

Feenstra, Randall

446

Thickness-dependent changes in the optical properties of PPV-and PF-based polymer light emitting diodes  

E-Print Network [OSTI]

the thickness-dependent optical properties of single layer polymer light emitting diodes for two materials, poly the electronic and optical properties of these materials in light emitting diode LED structures.2 OurThickness-dependent changes in the optical properties of PPV- and PF-based polymer light emitting

Carter, Sue

447

Thickness of the rim of an expanding lamella near the splash threshold Jolet de Ruiter,1,a  

E-Print Network [OSTI]

and agricultural applications including spray coating and cooling,1 ink-jet printing,2,3 fuel combustion,4 viscosity of the liquid and t is the time after impact.8­12 This same idea has also been used for film thickness after impact on a thin liquid film.13 A functional form for the lamella thickness is also

Koehl, Mimi

448

Semi-empirical model for depth dose distributions of megavoltage x-ray beams  

SciTech Connect (OSTI)

The dose distribution due to absorption of photon energy fluence in a homogeneous water phantom irradiated by megavoltage x-ray beams has been analyzed with a semiempirical model. The method generalizes an analytical formalism for the scattering component of dose within a water phantom which was developed recently for monoenergetic photon beams. Contributions to dose via Compton interaction and pair creation form the essential structure of the secondary component formula. Both the central-axis percent depth dose and off-central-axis ratios can be determined for beams of different sizes, used at any value of source to surface distance. The input data include the values of linear attenuation and energy-absorption coefficients in water at energies between 10 keV and the equivalent energy of the beam. Predicted values of the central-axis percent depth dose and the off-central-axis ratios are compared with the measured data for 2, 4, 6, 8, 10, 14, 20, 35, 45, and 70 MVp x-ray beams. For the central-axis percent depth dose, agreement is within 3% for fields of sizes between 5 x 5 and 20 x 20 cm/sup 2/, and 5% for larger fields, for beams of MVp up to 20. For higher energy beams, comparison was made only for the 10 x 10 cm/sup 2/ fields and the discrepancies were within 3%. For the off-central-axis ratios, agreement between the predicted and measured values is within 5% over the umbra region but worsens in the penumbra region and geometrical shadow. This formalism requires large computer storage for generating data for all realistic beams irradiating normal-size phantoms.

Ahuja, S.D.; Stroup, S.L.; Bolin, M.G.

1980-09-01T23:59:59.000Z

449

{sup 82}Rb kinetic parameter variability due to depth of anesthesia in the anesthetized canine  

SciTech Connect (OSTI)

The effect of {open_quotes}depth of anesthesia{close_quotes} on {sup 82}Rb kinetic parameter estimates in the myocardium was tested in a series of replicated studies on six dogs using the Donner 600-Crystal Positron Tomograph. A single lateral slice through the myocardium was imaged following each of four successive injections of {sup 82}Rb. For three of the injections the animals were lightly anesthetized (mean blood pressure about 90 mmHg). For the second injection, the amount of anesthetic was increased until blood pressure dipped to about 70 mHg. The fourth injection was preceded by an infusion of dipyridamole to induce a stress-state. The entire sequence was repeated at least twice with each of the six animals. A two compartment model with parameters k{sub 1} (uptake rate), k{sub 2} (wash-out rate), and f{sub v} (vascular fraction) was fit to the data. There was a consistent finding of a 20% to 30% decrease in k{sub 1} during the deeply anesthetized state compared with the two lightly anesthetized rest states. Analysis of variance showed that the difference observed is significant, though small in comparison with the difference between the rest and stress states (60% to 160% increase). The difference between the two lightly anesthetized states was not significant. Kinetic PET studies using dogs are routinely carried out with the animal anesthetized. Depth of anesthesia has been suspected as as source of variability in parameter estimates, but this conjecture has not previously been systematically investigated. These studies at extremes in the depth of anesthesia show a small but predictable effect on the uptake k{sub 1} of {sup 82}Rb.

Coxson, P.G.; Brennan, K.M.; Yang, L. [Lawrence Berkeley Laboratory, CA (United States)] [and others

1995-05-01T23:59:59.000Z

450

Electrocaloric properties of ferroelectric-paraelectric superlattices controlled by the thickness of paraelectric layer in a wide temperature range  

SciTech Connect (OSTI)

As functions of the paraelectric layer thickness, misfit strain and temperature, the electrocaloric properties of ferroelectric-paraelectric superlattices are investigated using a time-dependent Ginzburg-Landau thermodynamic model. Ferroelectric phase transition driven by the relative thickness of the superlattice is found to dramatically impact the electrocaloric response. Near the phase transition temperature, the magnitude of the electrocaloric effect is maximized and shifted to lower temperatures by increasing the relative thickness of paraelectric layer. Theoretical calculations also imply that the electrocaloric effect of the superlattices depends not only on the relative thickness of paraelectric layer but also on misfit strain. Furthermore, control of the relative thickness of paraelectric layer and the misfit strain can change availably both the magnitude and the temperature sensitivity of the electrocaloric effect, which suggests that ferroelectric-paraelectric superlattices may be promising candidates for use in cooling devices in a wide temperature range.

Ma, D. C.; Lin, S. P. [Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-Sen University, Guangzhou 510275 (China); Micro and Nano Physics and Mechanics Research Laboratory, School of Physics and Engineering, Sun Yat-sen University, Guangzhou 510275 (China); Chen, W. J.; Zheng, Yue, E-mail: zhengy35@mail.sysu.edu.cn; Xiong, W. M. [State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou 510275 (China); Micro and Nano Physics and Mechanics Research Laboratory, School of Physics and Engineering, Sun Yat-sen University, Guangzhou 510275 (China); Wang, Biao, E-mail: wangbiao@mail.sysu.edu.cn [State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou 510275 (China)

2014-10-15T23:59:59.000Z

451

Evaluation of the Effective Moisture Penetration Depth Model for Estimating Moisture Buffering in Buildings  

SciTech Connect (OSTI)

This study examines the effective moisture penetration depth (EMPD) model, and its suitability for building simulations. The EMPD model is a compromise between the simple, inaccurate effective capacitance approach and the complex, yet accurate, finite-difference approach. Two formulations of the EMPD model were examined, including the model used in the EnergyPlus building simulation software. An error in the EMPD model we uncovered was fixed with the release of EnergyPlus version 7.2, and the EMPD model in earlier versions of EnergyPlus should not be used.

Woods, J.; Winkler, J.; Christensen, D.

2013-01-01T23:59:59.000Z

452

Molecular Depth Profiling of Sucrose Films: A Comparative Study of Cn Ions  

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

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453

DOE/SC-ARM/TR-129 Aerosol Optical Depth Value-Added Product  

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

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454

Depth Profile of Uncompensated Spins in an Exchange-Bias System  

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

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455

Depth Profile of Uncompensated Spins in an Exchange-Bias System  

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

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456

ARM - Evaluation Product - MicroPulse LIDAR Cloud Optical Depth (MPLCOD)  

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

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457

Analysis of Langley optical depth data, with aerosol and gas retrievals,  

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

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458

Comparison of Cloud Top Height and Optical Depth Histograms from ISCCP,  

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

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459

Where fast weathering creates thin regolith and slow weathering creates thick regolith  

SciTech Connect (OSTI)

Weathering disaggregates rock into regolith the fractured or granular earthmaterial that sustains life on the continental land surface. Here, we investigate what controls the depth of regolith formed on ridges of two rock compositions with similar initial porosities in Virginia (USA).A priori, we predicted that the regolith on diabasewould be thicker than on granite because the dominant mineral (feldspar) in the diabase weathers faster than its granitic counterpart. However, weathering advanced 20deeper into the granite than the diabase. The 20-thicker regolith is attributed mainly to connected micron-sized pores, microfractures formed around oxidizing biotite at 20m depth, and the lower iron (Fe) content in the felsic rock. Such porosity allows pervasive advection and deep oxidation in the granite. These observations may explainwhy regolithworldwide is thicker on felsic compared tomafic rock under similar conditions. To understand regolith formationwill require better understanding of such deep oxidation reactions and how they impact fluid flow during weathering.

Bazilevskaya, Ekaterina [Pennsylvania State University, University Park, PA; Lebedeva, Marina [Pennsylvania State University, University Park, PA; Pavich, Milan [U.S. Geological Survey, Reston, VA; Rother, Gernot [ORNL; Parkinson, D. Y. [Advanced Light Source, LBNL; Cole, David [Ohio State University; Brantley, S. L. [Pennsylvania State University, University Park, PA

2012-01-01T23:59:59.000Z

460

An in-depth longitudinal analysis of mixing patterns in a small scientific collaboration network  

SciTech Connect (OSTI)

Many investigations of scientific collaboration are based on large-scale statistical analyses of networks constructed from bibliographic repositories. These investigations often rely on a wealth of bibliographic data, but very little or no other information about the individuals in the network, and thus, fail to illustate the broader social and academic landscape in which collaboration takes place. In this article, we perform an in-depth longitudinal analysis of a small-scale network of scientific collaboration (N = 291) constructed from the bibliographic record of a research center involved in the development and application of sensor network technologies. We perform a preliminary analysis of selected structural properties of the network, computing its range, configuration and topology. We then support our preliminary statistical analysis with an in-depth temporal investigation of the assortativity mixing of these node characteristics: academic department, affiliation, position, and country of origin of the individuals in the network. Our qualitative analysis of mixing patterns offers clues as to the nature of the scientific community being modeled in relation to its organizational, disciplinary, institutional, and international arrangements of collaboration.

Rodriguez, Marko A [Los Alamos National Laboratory; Pepe, Alberto [UCLA

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "thickness ft depth" 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

Device and method for the measurement of depth of interaction using co-planar electrodes  

DOE Patents [OSTI]

A device and method for measuring a depth of interaction of an ionizing event and improving resolution of a co-planar grid sensor (CPG) are provided. A time-of-occurrence is measured using a comparator to time the leading edge of the event pulse from the non-collecting or collecting grid. A difference signal between the grid signals obtained with a differential amplifier includes a pulse with a leading edge occurring at the time-of-detection, measured with another comparator. A timing difference between comparator outputs corresponds to the depth of interaction, calculated using a processor, which in turn weights the difference grid signal to improve spectral resolution of a CPG sensor. The device, which includes channels for grid inputs, may be integrated into an Application Specific Integrated Circuit. The combination of the device and sensor is included. An improved high-resolution CPG is provided, e.g., a gamma-ray Cadmium Zinc Telluride CPG sensor operating at room temperature.

DeGeronimo, Gianluigi (Syosset, NY)

2007-09-18T23:59:59.000Z

462

Test plan for evaluating the operational performance of the prototype nested, fixed-depth fluidic sampler  

SciTech Connect (OSTI)

The PHMC will provide Low Activity Wastes (LAW) tank wastes for final treatment by a privatization contractor from two double-shell feed tanks, 241-AP-102 and 241-AP-104. Concerns about the inability of the baseline ''grab'' sampling to provide large volume samples within time constraints has led to the development of a nested, fixed-depth sampling system. This sampling system will provide large volume, representative samples without the environmental, radiation exposure, and sample volume impacts of the current base-line ''grab'' sampling method. A plan has been developed for the cold testing of this nested, fixed-depth sampling system with simulant materials. The sampling system will fill the 500-ml bottles and provide inner packaging to interface with the Hanford Sites cask shipping systems (PAS-1 and/or ''safe-send''). The sampling system will provide a waste stream that will be used for on-line, real-time measurements with an at-tank analysis system. The cold tests evaluate the performance and ability to provide samples that are representative of the tanks' content within a 95 percent confidence interval, to sample while mixing pumps are operating, to provide large sample volumes (1-15 liters) within a short time interval, to sample supernatant wastes with over 25 wt% solids content, to recover from precipitation- and settling-based plugging, and the potential to operate over the 20-year expected time span of the privatization contract.

REICH, F.R.

1999-05-18T23:59:59.000Z

463

Constraints from Moho geometry and crustal thickness on the geodynamic origin of the Vrancea Seismogenic Zone (Romania)  

E-Print Network [OSTI]

Seismogenic Zone (Romania) Dana M. Mucuta , Camelia C. Knapp, James H. Knapp Department of Geological Sciences of Romania provides important new constraints on geodynamic models for the origin of the intermediate depth of the SE Carpathians of Romania is the significant concentration of intermediate depth (down to 220km

Knapp, Camelia Cristina

464

In-situ Measurement of Low-Z Material Coating Thickness on High Z Substrate for Tokamaks  

SciTech Connect (OSTI)

Rutherford backscattering (RBS) of energetic particles can be used to determine the thickness of a coating of a low-Z material over a heavier substrate. Simulations indicate that 5 MeV alpha particles from an Am source can be used to measure the thickness of a Li coating on Mo tiles between 0.5 and 15 ?m thick. Using a 0.1 mCi source, a thickness measurement can be accomplished in 2 hours of counting. This technique could be used to measure any thin, low-Z material coating (up to 1 mg/cm^2 thick) on a high-Z substrate, such as Be on W, B on Mo, or Li on Mo. By inserting a source and detector on a moveable probe, this technique could be used to provide an in situ measurement of the thickness of Li coating on NSTX-U Mo tiles. A test stand with an alpha source and an annular solid-state detector was used to investigate the measurable range of low-Z material thicknesses on Mo tiles.

Mueller, D [PPPL; Roquemore, A L [PPPL; Jaworski, M [PPPL; Skinner, C H [PPPL; Miller, J [PPPL; Creely, A [PPPL; Raman, P [2University of Illinois, Champaign, IL, USA; Ruzic, D [2University of Illinois, Champaign, IL, USA

2014-07-01T23:59:59.000Z

465

Carbon, nitrogen and $\\alpha$-element abundances determine the formation sequence of the Galactic thick and thin disks  

E-Print Network [OSTI]

Using the DR12 public release of APOGEE data, we show that thin and thick disk separate very well in the space defined by [$\\alpha$/Fe], [Fe/H] and [C/N]. Thick disk giants have both higher [C/N] and higher [$\\alpha$/Fe] than do thin disk stars with similar [Fe/H]. We deduce that the thick disk is composed of lower mass stars than the thin disk. Considering the fact that at a given metallicity there is a one-to-one relation between stellar mass and age, we are then able to infer the chronology of disk formation. Both the thick and the thin disks - defined by [$\\alpha$/Fe] -- converge in their dependance on [C/N] and [C+N/Fe] at [Fe/H]$\\approx$-0.7. We conclude that 1) the majority of thick disk stars formed earlier than did the thin disk stars 2) the formation histories of the thin and thick disks diverged early on, even when the [Fe/H] abundances are similar 3) that the star formation rate in the thin disk has been lower than in the thick disk, at all metallicities. Although these general conclusions remain ...

Masseron, T

2015-01-01T23:59:59.000Z

466

HST SPECTRAL MAPPING OF L/T TRANSITION BROWN DWARFS REVEALS CLOUD THICKNESS VARIATIONS  

SciTech Connect (OSTI)

Most directly imaged giant exoplanets are fainter than brown dwarfs with similar spectra. To explain their relative underluminosity, unusually cloudy atmospheres have been proposed. However, with multiple parameters varying between any two objects, it remained difficult to observationally test this idea. We present a new method, sensitive time-resolved Hubble Space Telescope near-infrared spectroscopy, to study two rotating L/T transition brown dwarfs (2M2139 and SIMP0136). The observations provide spatially and spectrally resolved mapping of the cloud decks of the brown dwarfs. The data allow the study of cloud structure variations while other parameters are unchanged. We find that both brown dwarfs display variations of identical nature: J- and H-band brightness variations with minimal color and spectral changes. Our light curve models show that even the simplest surface brightness distributions require at least three elliptical spots. We show that for each source the spectral changes can be reproduced with a linear combination of only two different spectra, i.e., the entire surface is covered by two distinct types of regions. Modeling the color changes and spectral variations together reveal patchy cloud covers consisting of a spatially heterogeneous mix of low-brightness, low-temperature thick clouds and brighter, thin, and warm clouds. We show that the same thick cloud patches seen in our varying brown dwarf targets, if extended to the entire photosphere, predict near-infrared colors/magnitudes matching the range occupied by the directly imaged exoplanets that are cooler and less luminous than brown dwarfs with similar spectral types. This supports the models in which thick clouds are responsible for the near-infrared properties of these ''underluminous'' exoplanets.

Apai, Daniel [Department of Astronomy, University of Arizona, 933 N. Cherry Avenue, Tucson, AZ 85721 (United States); Radigan, Jacqueline; Jayawardhana, Ray [Department of Astronomy, University of Toronto, 50 St. George Street, Toronto M5S 3H4 (Canada); Buenzli, Esther [Department of Astronomy and Steward Observatory, 933 N. Cherry Avenue, University of Arizona, Tucson, AZ 85721 (United States); Burrows, Adam [Department of Astrophysical Sciences, 105 Peyton Hall, Princeton University, Princeton, NJ 08544 (United States); Reid, Iain Neill, E-mail: apai@as.arizona.edu [Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21212 (United States)

2013-05-10T23:59:59.000Z

467

Harmonic QPOs and Thick Accretion Disk Oscillations in BL Lac Object AO 0235+164  

E-Print Network [OSTI]

Periodic outbursts are observed in many AGNs and usually explained with a supermassive black hole binary (SMBHB) scenario. However, multiple periods are observed in some AGNs and cannot be explained with it. Here we analyze the periodicity of the radio light curves of AO 0235+164 at multi-frequencies and report the discovery of six QPOs in integer ratio 1:2:3:4:5:6 of QPO frequencies, of which the second with period $P_2 = (5.46 \\pm 0.47) {\\rm yr}$ is the strongest. We fit the radio light curves and show that the initial phases of six QPOs have zero or $\\pi$ differences relative to each other. We suggest a harmonic relationship of QPOs. The centroid frequency, relative strength, harmonic relationship and relative initial phases of QPOs are independent of radio frequency. The harmonic QPOs are likely due to the quasi-periodic injection of plasma from an oscillating accretion disk into the jet. We estimate the supermassive black hole mass $M_{\\rm BH} \\simeq (4.72\\pm 2.04) \\times 10^8 M_\\odot$ and the accretion rate $\\dot{m}\\simeq 0.007$. With the knowledge of accretion disk, it implies that the inner region of accretion disk of AO 0235+164 is a radiatively inefficient accretion flow. The oscillation accretion is due to the p-mode oscillation of the thick disk probably excited by a SMBHB. The theoretical predications of fundamental oscillation frequency and the harmonics are well consistent with the observations. Harmonic QPOs would be absent when the thick disk becomes geometrically thin due to the increase of accretion rate. We discuss the observations of AO 0235+164 basing on the SMBHB-thick disk oscillation scenario.

F. K. Liu; G. Zhao; Xue-Bing Wu

2006-06-27T23:59:59.000Z

468

Coal-bench architecture as a means of understanding regional changes in coal thickness and quality  

SciTech Connect (OSTI)

Analysis of the Fire Creek (Westphalian B), Pond Creek (lower Westphalian B), and Stockton (Westphalian B) coals, three of the most heavily mined coals in the Central Appalachian Basin, shows that all have a similar multiple-bench architecture of at least two benches split by a regional clastic parting or durain. Coal benches beneath regionally extensive partings are generally less continuous, thinner, more palynologically variable, higher in ash yield, and higher in sulfur content than coal benches above regional partings in all three coals. Where thick, benches above regional partings tend to exhibit temporal palynological changes from lycopod- to fern-dominant. Where inertinite-rich/fern-dominant benches are overlain by additional benches, the upper benches are limited in extent, variable in thickness, high in sulfur content and ash yield, and split away from the coal. The multiple-bench architecture exhibited by these coals is interpreted to represent a cyclic mire succession that was common in the Middle Pennsylvanian. Peats began as planar mires infilling an irregular topography during rising base level. When the topography was infilled, unconfined flooding was possible and resulted in widespread partings. Ponding above these clay-rich flood deposits led to re-establishment of new planar mires with greater continuity than the underlying mires. The extent of these mires provided buffers to clastic influx and, in many cases, allowed domed conditions to develop. Doming resulted in thick, high-quality coal benches. In some cases, a third stage of planar peats, with similar characteristics to the planar peats at the base of the beds, developed on the unevenly distributed clastics that buried underlying mires during continued base-level rise.

Greb, S.F.; Eble, C.F. [Kentucy Geological Survey, Lexington, KY (United States); Hower, J.C. [Center for Applied Research, Lexington, KY (United States)

1996-09-01T23:59:59.000Z

469

Constraining the symmetry energy from the neutron skin thickness of Tin isotopes  

E-Print Network [OSTI]

We show in the Skyrme-Hartree-Fock approach that unambiguous correlations exist between observables of finite nuclei and nuclear matter properties. Using this correlation analysis to existing data on the neutron skin thickness of Sn isotopes, we find important constraints on the value E_{sym}(rho_0) and density slope L of the nuclear symmetry energy at saturation density. Combining these constraints with those from recent analyses of isospin diffusion and double neutron/proton ratio in heavy ion collisions leads to a value of L=58\\pm 18 MeV approximately independent of E_{sym}(\\rho_0).

Lie-Wen Chen; Che Ming Ko; Jun Xu; Bao-An Li

2011-03-24T23:59:59.000Z

470

Monitoring Morphological Changes in 2D Monolayer Semiconductors Using Atom-Thick Plasmonic Nanocavities  

E-Print Network [OSTI]

coupled modes. One weaker mode corresponds to transverse dipolar charge oscillations inside the NP alone (𝑇𝑇).7,9–11 However, the dominant modes shift to the red due to longitudinal coupling between the NP and its image in the mirror surface, forming... -ion-beam milling, mounted on a TEM grid using a nanomanipulator and polished down to a thickness of ~100nm. DF-STEM imaging was performed in a Hitachi S-5500 SEM at 30kV acceleration voltage. Theory simulations: Exact simulations are carried out using...

Sigle, Daniel O.; Mertens, Jan; Herrmann, Lars O.; Bowman, Richard W.; Ithurria, Sandrine; Dubertret, Benoit; Shi, Yumeng; Yang, Hui Ying; Tserkezis, Christos; Aizpurua, Javier; Baumberg, Jeremy J.

2014-12-17T23:59:59.000Z

471

The characterization of Lamb and Rayleigh waves in plates with ramp-like changes in thickness  

E-Print Network [OSTI]

-up 12 FIG. 2. 4. Sample pulse duration of Q-switched Nd: YAG laser 14 FIG. 2, 5. Acoustic wave detection set-up . FIG. 2. 6. A standard Fizeau interferometer 17 18 FIG. 2. 8. A typical bandpass filter . 23 FIG. 2. 9. The complete TAP-NDE... I INTRODUCTION In recent years, significant advances have been made in the area of non-destructive evaluation (NDE). Much of this progress involves interrogation techniques utilizing Rayleigh waves in thick structures, and Lamb waves in thin...

Uzzell, Christopher Tinsley

2012-06-07T23:59:59.000Z

472

Sensitivity of the electric dipole polarizability to the neutron skin thickness in {sup 208}Pb  

SciTech Connect (OSTI)

The static dipole polarizability, {alpha}{sub D}, in {sup 208}Pb has been recently measured with highresolution via proton inelastic scattering at the Research Center for Nuclear Physics (RCNP) [1]. This observable is thought to be intimately connected with the neutron skin thickness, r{sub skin}, of the same nucleus and, more fundamentally, it is believed to be associated with the density dependence of the nuclear symmetry energy. The impact of r{sub skin} on {alpha}{sub D} in {sup 208}Pb is investigated and discussed on the basis of a large and representative set of relativistic and non-relativistic nuclear energy density functionals (EDF) [2].

Roca-Maza, X.; Agrawal, B. K.; Colo, G.; Nazarewicz, W.; Paar, N.; Piekarewicz, J.; Reinhard, P.-G.; Vretenar, D. [INFN, sezione di Milano, via Celoria 16, I-20133 Milano (Italy); Saha Institute of Nuclear Physics, Kolkata 700064 (India); Dipartimento di Fisica, Universita degli Studi di Milano and INFN, Sezione di Milano, 20133 Milano (Italy); Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996 (United States) and Institute of Theoretical Physics, University of Warsaw, Hoza 69, PL-00-681 Warsaw (Poland); Physics Department, Faculty of Science, University of Zagreb, Zagreb (Croatia); Department of Physics, Florida State University, Tallahassee, FL 32306 (United States); Institut fuer Theoretische Physik II, Universitaet Erlangen-Nuernberg, Staudtstrasse 7, D-91058 Erlangen (Germany); Physics Department, Faculty of Science, University of Zagreb, Zagreb (Croatia)

2012-10-20T23:59:59.000Z

473

The effect of stratum thickness ratio on crossflow in a stratified petroleum reservoir  

E-Print Network [OSTI]

, the effect of stratum thickness ratio and viscosity ratio on crossflow were studied. REVIEW OF LITERATURE The possible importance of permeability stratification in a reservoir being waterflooded was first mentioned in a paper by 1 . Lester C. Uren in f... States, API (1950) p. 160-174. 4, Dyes, A. B. and Braun, P. H. : "Sweepout Patterns in De- pleted and Stratified Reservoirs, " Producers Monthl (1954) 19, No. 2, p, 24-30. 5. Gaucher, D. H. and Lindley, D. C. : "Waterflood Performance in a Stratified...

Kereluk, Michael Joseph

1966-01-01T23:59:59.000Z

474

IFE thick liquid wall chamber dynamics: Governing mechanisms andmodeling and experimental capabilities  

SciTech Connect (OSTI)

For thick liquid wall concepts, it is important to understand the different mechanisms affecting the chamber dynamics and the state of the chamber prior to each shot a compared with requirements from the driver and target. These include ablation mechanisms, vapor transport and control, possible aerosol formation, as well as protective jet behavior. This paper was motivated by a town meeting on this subject which helped identify the major issues, assess the latest results, review the capabilities of existing modeling and experimental facilities with respect to addressing remaining issues, and helping guide future analysis and R&D efforts; the paper covers these exact points.

Raffray, A.R.; Meier, W.; Abdel-Khalik, S.; Bonazza, R.; Calderoni, P.; Debonnel, C.S.; Dragojlovic, Z.; El-Guebaly, L.; Haynes,D.; Latkowski, J.; Olson, C.; Peterson, P.F.; Reyes, S.; Sharpe, P.; Tillack, M.S.; Zaghloul, M.

2005-01-24T23:59:59.000Z

475

Formation of Thick, Large-Area Nanoparticle Superlatices in Lithographically Defined Geometries  

SciTech Connect (OSTI)

Superlattices of colloidal nanocrystals hold the promise of new nanomaterials with tunable properties. The positioning and size of these structures are often poorly controlled after self-assembly from the solution phase, making studies of their properties difficult. We report the fabrication of {approx}100 layer thick, three-dimensional superlattices on a substrate with controlled lateral placement. This novel fabrication technique generates long-range order over the micrometer scale and controlled placement by employing lithographic patterning and microfluidic flow. Keywords: Nanoparticles; superlattice; self assembly; microfluidics; ordered array.

Akey, A.; Yang, L.; Lu, C.; Herman, I.P.

2010-03-31T23:59:59.000Z

476

1-nm-thick graphene tri-layer as the ultimate copper diffusion barrier  

SciTech Connect (OSTI)

We demonstrate the thinnest ever reported Cu diffusion barrier, a 1-nm-thick graphene tri-layer. X-ray diffraction patterns and Raman spectra show that the graphene is thermally stable at up to 750?°C against Cu diffusion. Transmission electron microscopy images show that there was no inter-diffusion in the Cu/graphene/Si structure. Raman analyses indicate that the graphene may have degraded into a nanocrystalline structure at 750?°C. At 800?°C, the perfect carbon structure was damaged, and thus the barrier failed. The results of this study suggest that graphene could be the ultimate Cu interconnect diffusion barrier.

Nguyen, Ba-Son [Department of Mechanical Engineering, National Cheng Kung University, 1 University Road, Tainan 701, Taiwan (China); Lin, Jen-Fin [Department of Mechanical Engineering, National Cheng Kung University, 1 University Road, Tainan 701, Taiwan (China); Center for Micro/Nano Science and Technology, National Cheng Kung University, 1 University Road, Tainan 701, Taiwan (China); Perng, Dung-Ching, E-mail: dcperng@ee.ncku.edu.tw [Institute of Microelectronics and Electrical Engineering Department, National Cheng Kung University, 1 University Road, Tainan 701, Taiwan (China); Center for Micro/Nano Science and Technology, National Cheng Kung University, 1 University Road, Tainan 701, Taiwan (China)

2014-02-24T23:59:59.000Z

477

Concluding Remarks In this work, we have explored in depth many types of radioactive contamination that are  

E-Print Network [OSTI]

Concluding Remarks In this work, we have explored in depth many types of radioactive contamination as radiopurity testing facilities, capable of measuring the radioactivity levels of materials to be used

478

A study on the evolution of dielectric function of ZnO thin films with decreasing film thickness  

SciTech Connect (OSTI)

Dielectric function, band gap, and exciton binding energies of ultrathin ZnO films as a function of film thickness have been obtained with spectroscopic ellipsometry. As the film thickness decreases, both real (?{sub 1}) and imaginary (?{sub 2}) parts of the dielectric function decrease significantly, and ?{sub 2} shows a blue shift. The film thickness dependence of the dielectric function is shown related to the changes in the interband absorption, discrete-exciton absorption, and continuum-exciton absorption, which can be attributed to the quantum confinement effect on both the band gap and exciton binding energies.

Li, X. D.; Chen, T. P., E-mail: echentp@ntu.edu.sg; Liu, P. [School of Electrical and Electronic Engineering, Nanyang Technological University, 639798 Singapore (Singapore); Liu, Y. [State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology, Chengdu 610054 (China); Liu, Z. [School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006 (China); Leong, K. C. [GLOBALFOUNDRIES Singapore Pte Ltd, 738406 Singapore (Singapore)

2014-03-14T23:59:59.000Z

479

Two-dimensional spectral/statistical analysis of Marine magnetic data: implications for depth-to-magnetic source  

E-Print Network [OSTI]

T'A'0-DIMENSIONAL SPECTRAL/STATISTICAL ANAI. YSIS OF MARINE MAGNETIC DATA: IMPLICATIONS FOR DEPTH-TO-MAGNETIC SOURCE A Thesis by JEFFREY LEE SCHRULL Submitted to the Graduate College of Texas AdtM University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE May 1987 Major Subject: Geophysics TWO-DIMENSIONAL SPECTRAL/STATISTICAL ANALYSIS OF MARINE MAGNETIC DATA: IMPLICATIONS FOR DEPTH-TO-MAGNETIC SOURCE A Thesis JEFFREY LEE SCHRULL Approved as to style...

Schrull, Jeffrey Lee

1987-01-01T23:59:59.000Z

480

Effect of equatorial line nodes on the upper critical field and London penetration depth  

SciTech Connect (OSTI)

The upper critical field Hc2 and its anisotropy are calculated for order parameters with line nodes at the equators, kz=0, of the Fermi surface of uniaxial superconductors. It is shown that characteristic features found in Fe-based materials (a nearly linear Hc2(T) in a broad T domain, a low and increasing on warming anisotropy ?H=Hc2,ab/Hc2,c) can be caused by competing effects of the equatorial nodes and of the Fermi surface anisotropy. For certain material parameters, ?H(T)?1 may change sign upon warming, in agreement with the recorded behavior of FeTeS systems. It is also shown that the anisotropy of the penetration depth ??=?c/?ab decreases upon warming to reach ?H at Tc, in agreement with data available. For some materials ??(T) may change upon warming, from ??>1 at low Ts to ??<1 at high Ts.

Kogan, V G [Ames Laboratory; Prozorov, R [Ames Laboratory

2014-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "thickness ft depth" 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

Complex Faraday depth structure of Active Galactic Nuclei as revealed by broadband radio polarimetry  

E-Print Network [OSTI]

We present a detailed study of the Faraday depth structure of four bright (> 1 Jy), strongly polarized, unresolved, radio-loud quasars. The Australia Telescope Compact Array (ATCA) was used to observe these sources with 2 GHz of instantaneous bandwidth from 1.1 to 3.1 GHz. This allowed us to spectrally resolve the polarization structure of spatially unresolved radio sources, and by fitting various Faraday rotation models to the data, we conclusively demonstrate that two of the sources cannot be described by a simple rotation measure (RM) component modified by depolarization from a foreground Faraday screen. Our results have important implications for using background extragalactic radio sources as probes of the galactic and intergalactic magneto-ionic media as we show how RM estimations from narrow-bandwidth observations can give erroneous results in the presence of multiple interfering Faraday components. We postulate that the additional RM components arise from polarized structure in the compact inner regio...

O'Sullivan, S P; Robishaw, T; Schnitzeler, D H F M; McClure-Griffiths, N M; Feain, I J; Taylor, A R; Gaensler, B M; Landecker, T L; Harvey-Smith, L; Carretti, E

2012-01-01T23:59:59.000Z

482

Improving resolution and depth of astronomical observations via modern mathematical methods for image analysis  

E-Print Network [OSTI]

In the past years modern mathematical methods for image analysis have led to a revolution in many fields, from computer vision to scientific imaging. However, some recently developed image processing techniques successfully exploited by other sectors have been rarely, if ever, experimented on astronomical observations. We present here tests of two classes of variational image enhancement techniques: "structure-texture decomposition" and "super-resolution" showing that they are effective in improving the quality of observations. Structure-texture decomposition allows to recover faint sources previously hidden by the background noise, effectively increasing the depth of available observations. Super-resolution yields an higher-resolution and a better sampled image out of a set of low resolution frames, thus mitigating problematics in data analysis arising from the difference in resolution/sampling between different instruments, as in the case of EUCLID VIS and NIR imagers.

Castellano, Marco; Fontana, Adriano; Merlin, Emiliano; Pilo, Stefano; Falcone, Maurizio

2015-01-01T23:59:59.000Z

483

Superconducting coherence length and magnetic penetration depth of a p-wave holographic superconductor  

SciTech Connect (OSTI)

A classical SU(2) Einstein-Yang-Mills theory in (3+1)-dimensional anti-de Sitter spacetime is believed to be dual to a p-wave superconductor in (2+1)-dimensional flat spacetime. In order to calculate the superconducting coherence length {xi} of the holographic superconductor near the superconducting phase transition point, we make a perturbative study of the gravity theory analytically. The superconducting coherence length {xi} is found to be proportional to (1-T/T{sub c}){sup -1/2} near the critical temperature T{sub c}. We also obtain the magnetic penetration depth {lambda}{proportional_to}(T{sub c}-T){sup 1/2} by adding a small external homogeneous magnetic field. The results agree with the Ginzburg-Landau theory.

Zeng Huabi; Fan Zheyong [Department of Physics, Nanjing University, Nanjing 210093 (China); Zong Hongshi [Department of Physics, Nanjing University, Nanjing 210093 (China); Joint Center for Particle, Nuclear Physics and Cosmology, Nanjing 210093 (China)

2010-05-15T23:59:59.000Z

484

Superconducting Coherence Length and Magnetic Penetration Depth of a p-wave Holographic Superconductor  

E-Print Network [OSTI]

A classical SU(2) Einstein-Yang-Mills theory in 3+1 dimensional anti-de Sitter spacetime is believed to be dual to a p-wave superconductor in 2+1 dimensional flat spacetime. In order to calculate the superconductiong coherence length $\\xi$ of the holographic superconductor near the superconducting phase transition point, we study the perturbation of the gravity theory analytically. The superconductiong coherence length $\\xi$ is found to be proportional to $(1-T/T_c)^{-1/2}$ near the critical temperature $T_c$. We also obtain the magnetic penetration depth $\\lambda\\propto(T_c-T)^{1/2}$ by adding a small external homogeneous magnetic field. The results agree with the Ginzburg-Landau theory.

Hua-Bi Zeng; Zhe-Yong Fan; Hong-Shi Zong

2010-04-16T23:59:59.000Z

485

Does aspartic acid racemization constrain the depth limit of the subsurface biosphere?  

SciTech Connect (OSTI)

Previous studies of the subsurface biosphere have deduced average cellular doubling times of hundreds to thousands of years based upon geochemical models. We have directly constrained the in situ average cellular protein turnover or doubling times for metabolically active micro-organisms based on cellular amino acid abundances, D/L values of cellular aspartic acid, and the in vivo aspartic acid racemization rate. Application of this method to planktonic microbial communities collected from deep fractures in South Africa yielded maximum cellular amino acid turnover times of ~89 years for 1 km depth and 27 C and 1 2 years for 3 km depth and 54 C. The latter turnover times are much shorter than previously estimated cellular turnover times based upon geochemical arguments. The aspartic acid racemization rate at higher temperatures yields cellular protein doubling times that are consistent with the survival times of hyperthermophilic strains and predicts that at temperatures of 85 C, cells must replace proteins every couple of days to maintain enzymatic activity. Such a high maintenance requirement may be the principal limit on the abundance of living micro-organisms in the deep, hot subsurface biosphere, as well as a potential limit on their activity. The measurement of the D/L of aspartic acid in biological samples is a potentially powerful tool for deep, fractured continental and oceanic crustal settings where geochemical models of carbon turnover times are poorly constrained. Experimental observations on the racemization rates of aspartic acid in living thermophiles and hyperthermophiles could test this hypothesis. The development of corrections for cell wall peptides and spores will be required, however, to improve the accuracy of these estimates for environmental samples.

Onstott, T. C. [Princeton University] [Princeton University; Aubrey, A.D. [Jet Propulsion Laboratory, Pasadena, CA] [Jet Propulsion Laboratory, Pasadena, CA; Kieft, T L [New Mexico Institute of Mining and Technology] [New Mexico Institute of Mining and Technology; Silver, B J [Jet Propulsion Laboratory, Pasadena, CA] [Jet Propulsion Laboratory, Pasadena, CA; Phelps, Tommy Joe [ORNL] [ORNL; Van Heerden, E. [University of the Free State] [University of the Free State; Opperman, D. J. [University of the Free State] [University of the Free State; Bada, J L. [Geosciences Research Division, Scripps Instition of Oceanography, Univesity of California San Diego,] [Geosciences Research Division, Scripps Instition of Oceanography, Univesity of California San Diego,

2014-01-01T23:59:59.000Z

486

Interaction of D2O with a Thick BaO Film: Formation of and Phase  

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

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487

Bandgap Engineering of InP QDs Through Shell Thickness and Composition  

SciTech Connect (OSTI)

Fields as diverse as biological imaging and telecommunications utilize the unique photophysical and electronic properties of nanocrystal quantum dots (NQDs). The development of new NQD compositions promises material properties optimized for specific applications, while addressing material toxicity. Indium phosphide (InP) offers a 'green' alternative to the traditional cadmium-based NQDs, but suffers from extreme susceptibility to oxidation. Coating InP cores with more stable shell materials significantly improves nanocrystal resistance to oxidation and photostability. We have investigated several new InP-based core-shell compositions, correlating our results with theoretical predictions of their optical and electronic properties. Specifically, we can tailor the InP core-shell QDs to a type-I, quasi-type-II, or type-II bandgap structure with emission wavelengths ranging from 500-1300 nm depending on the shell material used (ZnS, ZnSe, CdS, or CdSe) and the thickness of the shell. Single molecule microscopy assessments of photobleaching and blinking are used to correlate NQD properties with shell thickness.

Dennis, Allison M. [Los Alamos National Laboratory; Mangum, Benjamin D. [Los Alamos National Laboratory; Piryatinski, Andrei [Los Alamos National Laboratory; Park, Young-Shin [Los Alamos National Laboratory; Htoon, Han [Los Alamos National Laboratory; Hollingsworth, Jennifer A. [Los Alamos National Laboratory

2012-06-21T23:59:59.000Z

488

The {alpha}-induced thick-target {gamma}-ray yield from light elements  

SciTech Connect (OSTI)

The {alpha}-induced thick-target {gamma}-ray yield from light elements has been measured in the energy range 5.6 MeV {le} E{sub {alpha}} {le} 10 MeV. The {gamma}-ray yield for > 2.1 MeV from thick targets of beryllium, boron nitride, sodium fluoride, magnesium, aluminum and silicon were measured using the {alpha}-particle beam from the Lawrence Berkeley Laboratories 88 in. cyclotron. The elemental yields from this experiment were used to construct the {alpha}-induced direct production {gamma}-ray spectrum from materials in the SNO detector, a large volume ultra-low background neutrino detector located in the Creighton mine near Sudbury, Canada. This background source was an order of magnitude lower than predicted by previous calculations. These measurements are in good agreement with theoretical calculations of this spectrum based on a statistical nuclear model of the reaction, with the gross high energy spectrum structure being reproduced to within a factor of two. Detailed comparison of experimental and theoretical excitation population distribution of several residual nuclei indicate the same level of agreement within experimental uncertainties.

Heaton, R.K. [Queen`s Univ., Kingston, ON (Canada). Dept. of Physics]|[Lawrence Berkeley Lab., CA (United States)

1994-10-01T23:59:59.000Z

489

Constraints on neutron skin thickness in 208Pb and density-dependent symmetry energy  

E-Print Network [OSTI]

Accurate knowledge about the neutron skin thickness $\\Delta R_{np}$ in $^{208}$Pb has far-reaching implications for different communities of nuclear physics and astrophysics. Yet, the novel Lead Radius Experiment (PREX) did not yield stringent constraint on the $\\Delta R_{np}$ recently. We employ a more practicable strategy currently to probe the neutron skin thickness of $^{208}$Pb based on a high linear correlation between the $\\Delta R_{np}$ and $J-a_{\\text{sym}}$, where $J$ and $a_{\\text{sym}}$ are the symmetry energy (coefficient) of nuclear matter at saturation density and of $^{208}$Pb. An accurate $J-a_{\\text{sym}}$ thus places a strong constraint on the $\\Delta R_{np}$. Compared with the parity-violating asymmetry $A_{\\text{PV}}$ in the PREX, the reliably experimental information on the $J-a_{\\text{sym}}$ is much more easily available attributed to a wealth of measured data on nuclear masses and on decay energies. The density dependence of the symmetry energy is also well constrained with the $J-a_{\\...

Dong, Jianmin; Gu, Jianzhong

2015-01-01T23:59:59.000Z

490

Collisionless Shocks and TeV Neutrinos before Supernova Shock Breakout from an Optically Thick Wind  

E-Print Network [OSTI]

During a supernova explosion, a radiation-dominated shock (RDS) travels through its progenitor. A collisionless shock (CS) is usually assumed to replace it during shock breakout (SB). We demonstrate here that for some realistic progenitors enshrouded in optically thick winds, such as possibly SN 2008D, a CS forms deep inside the wind, soon after the RDS leaves the core, and therefore significantly before SB. The RDS does not survive the transition from the core to the thick wind when the wind close to the core is not sufficiently dense to compensate for the $r^{-2}$ dilution of photons due to shock curvature. This typically happens when the shock velocity is $\\lesssim 0.1 {\\rm c} \\, (\\frac{u_{\\rm w}}{10\\,{\\rm km/s}}) (\\frac{\\dot{M}}{5 \\cdot 10^{-4} \\, {\\rm M}_\\odot {\\rm /yr}})^{-1} (\\frac{r_\\ast}{10^{13}\\,{\\rm cm}})$, where $u_{\\rm w}$, $\\dot{M}$ and $r_\\ast$ are respectively the wind velocity, mass-loss rate and radius of the progenitor star. The radiative CS results in a hard spectrum of the photon flash at...

Giacinti, G

2015-01-01T23:59:59.000Z

491

Thickness Dependence of Oxygen Reduction Reaction Kinetics on Strontium-Substituted Lanthanum Manganese Perovskite Thin-Film Microelectrodes  

E-Print Network [OSTI]

Oxygen reduction reaction (ORR) kinetics was investigated on dense La?.?Sr?.?MnO? microelectrodes as a function of temperature and microelectrode thickness using electrochemical impedance spectroscopy. The surface oxygen ...

la O’, G. J.

492

A new sensor concept for simultaneous measurement of pressure, temperature and thickness of plate structures using modified wave propagation theory  

E-Print Network [OSTI]

-Acousto Photonic Non-Destructive Evaluation (TAP-NDE) is employed to remotely initiate and acquire interrogating ultrasonic waves. Parameters including pressure, temperature and plate thickness are determined through exploring the dispersion features...

Lo, Tzu-Wei

2005-11-01T23:59:59.000Z

493

Development of automated welding process for field fabrication of thick walled pressure vessels. (First quarterly report, FY 1981)  

SciTech Connect (OSTI)

The choice of sets of root welding parameters is discussed. Thick field demonstration/qualification welds will be performed. A welding procedure handbook which will be prepared is mentioned. (DLC)

Schneider, U.A.

1981-01-01T23:59:59.000Z

494

Basic data report for Drillhole WIPP 33 (Waste Isolation Pilot Plant-WIPP)  

SciTech Connect (OSTI)

WIPP 33 is an exploratory borehole to investigate the nature of unusually thick fill material in the northwest portion of the WIPP site; a breccia pipe was considered a possible, though unlikely, cause of the fill. The borehole is located in Section 13, T22S, R30E, in east central Eddy County, New Mexico and was drilled during July, 1979. The hole was drilled to a depth of 840 feet, and encountered, from top to bottom, surficial Holocene deposits (44 ft including artificial fill for drill pad), the Dewey Lake Red Beds (457 ft), the Rustler Formation (276 ft) and the upper portion of the Salado Formation (163 ft). Selected intervals were cored, and cuttings were taken for examination by geologists. Geophysical logs were taken the full length of the borehole to measure radioactivity, resistivity and density. The stratigraphic profile was found to be normal, and no breccia was observed.

None

1981-02-01T23:59:59.000Z

495

Final Report - Hydraulic Conductivity with Depth for Underground Test Area (UGTA) Wells  

SciTech Connect (OSTI)

Hydraulic conductivity with depth has been calculated for Underground Test Area (UGTA) wells in volcanic tuff and carbonate rock. The following wells in volcanic tuff are evaluated: ER-EC-1, ER-EC-2a, ER-EC-4, ER-EC-5, ER-5-4#2, ER-EC-6, ER-EC-7, and ER-EC-8. The following wells in carbonate rock are evaluated: ER-7-1, ER-6-1, ER-6-1#2, and ER-12-3. There are a sufficient number of wells in volcanic tuff and carbonate rock to associate the conductivity values with the specific hydrogeologic characteristics such as the stratigraphic unit, hydrostratigraphic unit, hydrogeologic unit, lithologic modifier, and alteration modifier used to describe the hydrogeologic setting. Associating hydraulic conductivity with hydrogeologic characteristics allows an evaluation of the data range and the statistical distribution of values. These results are relevant to how these units are considered in conceptual models and represented in groundwater models. The wells in volcanic tuff illustrate a wide range of data values and data distributions when associated with specific hydrogeologic characteristics. Hydraulic conductivity data within a hydrogeologic characteristic can display normal distributions, lognormal distributions, semi-uniform distribution, or no identifiable distribution. There can be multiple types of distributions within a hydrogeologic characteristic such as a single stratigraphic unit. This finding has implications for assigning summary hydrogeologic characteristics to hydrostratigraphic and hydrogeologic units. The results presented herein are specific to the hydrogeologic characteristic and to the wells used to describe hydraulic conductivity. The wells in carbonate rock are associated with a fewer number of hydrogeologic characteristics. That is, UGTA wells constructed in carbonate rock have tended to be in similar hydrogeologic materials, and show a wide range in hydraulic conductivity values and data distributions. Associations of hydraulic conductivity and hydrogeologic characteristics are graphically presented even when there are only a few data. This approach benchmarks what is currently known about the association of depth-specific hydraulic conductivity and hydrogeologic characteristics.

P. Oberlander; D. McGraw; C. Russell

2007-10-31T23:59:59.000Z

496

"Defense-in-Depth" Laser Safety and the National Ignition Facility  

SciTech Connect (OSTI)

The National Ignition Facility (NIF) is the largest and most energetic laser in the world contained in a complex the size of a football stadium. From the initial laser pulse, provided by telecommunication style infrared nanoJoule pulsed lasers, to the final 192 laser beams (1.8 Mega Joules total energy in the ultraviolet) converging on a target the size of a pencil eraser, laser safety is of paramount concern. In addition to this, there are numerous high-powered (Class 3B and 4) diagnostic lasers in use that can potentially send their laser radiation travelling throughout the facility. With individual beam paths of up to 1500 meters and a workforce of more than one thousand, the potential for exposure is significant. Simple laser safety practices utilized in typical laser labs just don't apply. To mitigate these hazards, NIF incorporates a multi layered approach to laser safety or 'Defense in Depth.' Most typical high-powered laser operations are contained and controlled within a single room using relatively simplistic controls to protect both the worker and the public. Laser workers are trained, use a standard operating procedure, and are required to wear Personal Protective Equipment (PPE) such as Laser Protective Eyewear (LPE) if the system is not fully enclosed. Non-workers are protected by means of posting the room with a warning sign and a flashing light. In the best of cases, a Safety Interlock System (SIS) will be employed which will 'safe' the laser in the case of unauthorized access. This type of laser operation is relatively easy to employ and manage. As the operation becomes more complex, higher levels of control are required to ensure personnel safety. Examples requiring enhanced controls are outdoor and multi-room laser operations. At the NIF there are 192 beam lines and numerous other Class 4 diagnostic lasers that can potentially deliver their hazardous energy to locations far from the laser source. This presents a serious and complex potential hazard to personnel. Because of this, a multilayered approach to safety is taken. This paper presents the philosophy and approach taken at the NIF in the multi-layered 'defense-in-depth' approach to laser safety.

King, J J

2010-12-02T23:59:59.000Z

497

Ice Thickness Measurements of the Southwest Greenland 2000-m Contour Line J. J. Legarsky, S.P. Gogineni, P. Kanagaratnam, T. L. Akins and Y. C. Wong  

E-Print Network [OSTI]

Ice Thickness Measurements of the Southwest Greenland 2000-m Contour Line J. J. Legarsky, S Laborato~ performed ice thickness measurements along several flights in the southern part of Greenland. We of the Greenland. INTRODUCTION Since 1993, we have been performing radar ice thickness measurements as a part

Kansas, University of

498

Estimation of the thin ice thickness and heat flux for the Chukchi Sea Alaskan coast polynya from Special Sensor Microwave/Imager data,  

E-Print Network [OSTI]

Estimation of the thin ice thickness and heat flux for the Chukchi Sea Alaskan coast polynya from shows that the SSM/I thicknesses and heat fluxes are valid for ice thicknesses less than 10­20 cm, comparison with other numerical and satellite estimates of the ice production shows that although our ice

Washington at Seattle, University of

499

Wavelength- and thickness-independent optical coatings for integrated circuit metallization layers  

SciTech Connect (OSTI)

Detailed measurements have been made of the optical properties of sputtered tantalum silicide films on aluminum layers used in integrated circuit fabrication. This new multicomponent conductor (TaSi/sub x/ on aluminum), which is currently in use because of its exceptional electrical, physical, and chemical properties, was also found to have superior optical properties compared to aluminum alone. The addition of the thin silicide layers reduces both the total hemispherical and diffuse reflectance properties by up to 45% over the 265--800-nm wavelength range with almost no dependence on film thickness. Unlike other optical coatings used on metal layers in integrated circuit manufacturing, the silicide films do not need to be removed after photolithography and pattern transfer processes are completed: aluminum wire bonding from the completed circuit (with silicide coating) to the package is highly reliable and reproducible.

Draper, B.L.; Mahoney, A.R.; Bailey, G.A.

1987-12-01T23:59:59.000Z

500

Method of controlling the side wall thickness of a turbine nozzle segment for improved cooling  

DOE Patents [OSTI]

A gas turbine nozzle segment has outer and inner bands and a vane extending therebetween. Each band has a side wall, a cover and an impingement plate between the cover and nozzle wall defining two cavities on opposite sides of the impingement plate. Cooling steam is supplied to one cavity for flow through apertures of the impingement plate to cool the nozzle wall. The side wall of the band has an inturned flange defining with the nozzle wall an undercut region. The outer surface of the side wall is provided with a step prior to welding the cover to the side wall. A thermal barrier coating is applied in the step and, after the cover is welded to the side wall, the side wall is finally machined to a controlled thickness removing all, some or none of the coating.

Burdgick, Steven Sebastian (Schenectady, NY)

2002-01-01T23:59:59.000Z