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


1

Split image optical display  

DOE Patents (OSTI)

A video image is displayed from an optical panel by splitting the image into a plurality of image components, and then projecting the image components through corresponding portions of the panel to collectively form the image. Depth of the display is correspondingly reduced.

Veligdan, James T. (Manorville, NY)

2007-05-29T23:59:59.000Z

2

Comparison of Cloud Top Height and Optical Depth Histograms from ISCCP,  

NLE Websites -- All DOE Office Websites (Extended Search)

Comparison of Cloud Top Height and Optical Depth Histograms from ISCCP, Comparison of Cloud Top Height and Optical Depth Histograms from ISCCP, MISR, and MODIS Marchand, Roger Pacific Northwest National Laboratory Ackerman, Thomas Pacific Northwest National Laboratory Category: Cloud Properties Joint histograms of Cloud Top Height (CTH) and Optical Depth (OD) derived by the International Satellite Cloud Climatology Project (ISCCP) are being widely used by the climate modeling community in evaluating global climate models. Similar joint histograms of CTH-OD are now being produced by the NASA Multi-angle Imaging Spectro-Radiometer (MISR) and Moderate Resolution Imaging Spectroradiometer (MODIS) instruments. There are notable differences in the histograms being produced by these three projects. In this poster we analyze some of the differences and discuss how the

3

Nanometric Optical Imaging Frontiers in Chemical Imaging  

E-Print Network (OSTI)

Nanometric Optical Imaging Frontiers in Chemical Imaging Seminar Series Presented by... Professor thermal imaging, chemical delivery and other new horizons. Finally, as part of this lecture, Lewis

4

Ferroelectric optical image comparator  

DOE Patents (OSTI)

A ferroelectric optical image comparator has a lead lanthanum zirconate titanate thin-film device which is constructed with a semi-transparent or transparent conductive first electrode on one side of the thin film, a conductive metal second electrode on the other side of the thin film, and the second electrode is in contact with a nonconducting substrate. A photoinduced current in the device represents the dot product between a stored image and an image projected onto the first electrode. One-dimensional autocorrelations are performed by measuring this current while displacing the projected image. 7 figures.

Butler, M.A.; Land, C.E.; Martin, S.J.; Pfeifer, K.B.

1993-11-30T23:59:59.000Z

5

Ferroelectric optical image comparator  

DOE Patents (OSTI)

A ferroelectric optical image comparator has a lead lanthanum zirconate titanate thin-film device which is constructed with a semi-transparent or transparent conductive first electrode on one side of the thin film, a conductive metal second electrode on the other side of the thin film, and the second electrode is in contact with a nonconducting substrate. A photoinduced current in the device represents the dot product between a stored image and an image projected onto the first electrode. One-dimensional autocorrelations are performed by measuring this current while displacing the projected image.

Butler, Michael A. (Albuquerque, NM); Land, Cecil E. (Albuquerque, NM); Martin, Stephen J. (Albuquerque, NM); Pfeifer, Kent B. (Los Lunas, NM)

1993-01-01T23:59:59.000Z

6

Ferroelectric optical image comparator  

DOE Patents (OSTI)

The property of ferroelectric ceramics such as lead lanthanum zirconate titanate (PLZT) to store information has been known for many years. This relates to the property of ferroelectric ceramic materials to become permanently polarized when an electric signal is applied to the material. A ferroelectric optical image comparator has a lead lanthanum zirconate titanate thin-film device which is constructed with a semi-transparent or transparent conductive first electrode on one side of the thin film, a conductive metal second electrode on the other side of the thin film, and the second electrode is in contact with a nonconducting substrate. A photoinduced current in the device represents the dot product between a stored image and an image projected onto the first electrode. One-dimensional autocorrelations are performed by measuring this current while displacing the projected image. 5 figs.

Butler, M.A.; Land, C.E.; Martin, S.J.; Pfeifer, K.B.

1989-08-30T23:59:59.000Z

7

On image reconstruction from multiscale top points  

Science Conference Proceedings (OSTI)

Image reconstruction from a fiducial collection of scale space interest points and attributes (e.g. in terms of image derivatives) can be used to make the amount of information contained in them explicit. Previous work by various authors includes both ...

Frans Kanters; Martin Lillholm; Remco Duits; Bart Janssen; Bram Platel; Luc Florack; Bart ter Haar Romeny

2005-04-01T23:59:59.000Z

8

Imaging Beyond Optics  

NLE Websites -- All DOE Office Websites (Extended Search)

Views" piece in that same issue. "Generations of astronomers have used interferometric tests to achieve the proper shape of their mirrors before using them to image the heavens....

9

Hadamard multimode optical imaging transceiver  

SciTech Connect

Disclosed is a method and system for simultaneously acquiring and producing results for multiple image modes using a common sensor without optical filtering, scanning, or other moving parts. The system and method utilize the Walsh-Hadamard correlation detection process (e.g., functions/matrix) to provide an all-binary structure that permits seamless bridging between analog and digital domains. An embodiment may capture an incoming optical signal at an optical aperture, convert the optical signal to an electrical signal, pass the electrical signal through a Low-Noise Amplifier (LNA) to create an LNA signal, pass the LNA signal through one or more correlators where each correlator has a corresponding Walsh-Hadamard (WH) binary basis function, calculate a correlation output coefficient for each correlator as a function of the corresponding WH binary basis function in accordance with Walsh-Hadamard mathematical principles, digitize each of the correlation output coefficient by passing each correlation output coefficient through an Analog-to-Digital Converter (ADC), and performing image mode processing on the digitized correlation output coefficients as desired to produce one or more image modes. Some, but not all, potential image modes include: multi-channel access, temporal, range, three-dimensional, and synthetic aperture.

Cooke, Bradly J; Guenther, David C; Tiee, Joe J; Kellum, Mervyn J; Olivas, Nicholas L; Weisse-Bernstein, Nina R; Judd, Stephen L; Braun, Thomas R

2012-10-30T23:59:59.000Z

10

Miniature hybrid optical imaging lens  

DOE Patents (OSTI)

A miniature lens system that corrects for imaging and chromatic aberrations, the lens system being fabricated from primarily commercially-available components. A first element at the input to a lens housing is an aperture stop. A second optical element is a refractive element with a diffractive element closely coupled to, or formed a part of, the rear surface of the refractive element. Spaced closely to the diffractive element is a baffle to limit the area of the image, and this is closely followed by a second refractive lens element to provide the final correction. The image, corrected for aberrations exits the last lens element to impinge upon a detector plane were is positioned any desired detector array. The diffractive element is fabricated according to an equation that includes, as variables, the design wavelength, the index of refraction and the radius from an optical axis of the lens system components.

Sitter, Jr., David N. (Knoxville, TN); Simpson, Marc L. (Knoxville, TN)

1997-01-01T23:59:59.000Z

11

Miniature hybrid optical imaging lens  

DOE Patents (OSTI)

A miniature lens system that corrects for imaging and chromatic aberrations is disclosed, the lens system being fabricated from primarily commercially-available components. A first element at the input to a lens housing is an aperture stop. A second optical element is a refractive element with a diffractive element closely coupled to, or formed a part of, the rear surface of the refractive element. Spaced closely to the diffractive element is a baffle to limit the area of the image, and this is closely followed by a second refractive lens element to provide the final correction. The image, corrected for aberrations exits the last lens element to impinge upon a detector plane were is positioned any desired detector array. The diffractive element is fabricated according to an equation that includes, as variables, the design wavelength, the index of refraction and the radius from an optical axis of the lens system components. 2 figs.

Sitter, D.N. Jr.; Simpson, M.L.

1997-10-21T23:59:59.000Z

12

Automatic Analysis of Stereoscopic Satellite Image Pairs for Determination of Cloud-Top Height and Structure  

Science Conference Proceedings (OSTI)

A massively parallel processor (MPP) computer has made it practical to do automatic stereo analysis of cloud-top heights from stereoscopic satellite image pairs. The automatic analysis is of equivalent quality to manual analysis while taking ...

A. F. Hasler; J. Strong; R. H. Woodward; H. Pierce

1991-03-01T23:59:59.000Z

13

jPOR: An ImageJ macro to quantify total optical porosity from blue-stained thin sections  

Science Conference Proceedings (OSTI)

A fast and effective method has been developed to measure total optical porosity (TOP) of blue resin-impregnated thin sections. This utilises a macro file (jPOR.txt) for ImageJ, which can be used on digital photomicrographs of thin sections. The method ... Keywords: Image analysis, Image processing, Operator error, Petrology, Point count, Porosity

Clayton Grove; Dougal A. Jerram

2011-11-01T23:59:59.000Z

14

Positron emission tomography and optical tissue imaging  

Science Conference Proceedings (OSTI)

A mobile compact imaging system that combines both PET imaging and optical imaging into a single system which can be located in the operating room (OR) and provides faster feedback to determine if a tumor has been fully resected and if there are adequate surgical margins. While final confirmation is obtained from the pathology lab, such a device can reduce the total time necessary for the procedure and the number of iterations required to achieve satisfactory resection of a tumor with good margins.

Falen, Steven W. (Carmichael, CA); Hoefer, Richard A. (Newport News, VA); Majewski, Stanislaw (Yorktown, VA); McKisson, John (Hampton, VA); Kross, Brian (Yorktown, VA); Proffitt, James (Newport News, VA); Stolin, Alexander (Newport News, VA); Weisenberger, Andrew G. (Yorktown, VA)

2012-05-22T23:59:59.000Z

15

Chapter 17. Biomedical Optical Imaging Biomedical Optical Imaging  

E-Print Network (OSTI)

. Figure 1.2 shows the schematic diagram of a spectral / Fourier-domain OCT system. A broadband light imaging. The system consists of an interferometer with a spectrometer and line scan camera. Light. The incident light power on the eye is 750 W, the same exposure used in commercial ophthalmic OCT systems

16

Minimally invasive diagnostic imaging using high resolution Optical Coherence Tomography  

E-Print Network (OSTI)

Advances in medical imaging have given researchers unprecedented capabilities to visualize, characterize and understand biological systems. Optical Coherence Tomography (OCT) is a high speed, high resolution imaging technique ...

Herz, Paul Richard, 1972-

2004-01-01T23:59:59.000Z

17

The characterization of particle clouds using optical imaging techniques  

E-Print Network (OSTI)

Optical imaging techniques can be used to provide a better understanding of the physical properties of particle clouds. The purpose of this thesis is to design, perform and evaluate a set of experiments using optical imaging ...

Bruce, Elizabeth J. (Elizabeth Jane), 1972-

1998-01-01T23:59:59.000Z

18

Persistent Nanophosphors for In-vivo Optical Imaging  

Science Conference Proceedings (OSTI)

Abstract Scope, Optical imaging requires more sensitive tools intended for biomedical research and medical applications. Near-infrared persistent luminescence ...

19

Design and development of an automated three axis machine that prints images on top of the foam of certain beverages  

E-Print Network (OSTI)

The goal of this research was to design and develop a working alpha prototype of the flagship product for a local startup called Onlatte, Inc. OnLatte specializes in automated printing of images on top of the foam of ...

Richardson, Jeremy S. H

2009-01-01T23:59:59.000Z

20

Top-surface imaging resists for lithography with strongly attenuated radiation  

SciTech Connect

Strong resist photoabsorption at wavelengths below 248 nm necessitates the use of a thin layer imaging (TLI) scheme for microlithography using 193 nm, 157 nm, or 13.4 nm radiation. Previous to this work, a TLI process commonly known as silylated top surface imaging (TSI) was developed by a Sandia/AT and T team for use in extreme ultraviolet lithography (EUVL) at 13.4 nm. Using this bilayer process, 0.13 {micro}m resolution with 87{degree} sidewalls in 0.7 {micro}m of resist was achieved for EUV exposures. New imaging layer polymers, silylation reagents and crosslinkers, and process conditions were screened for improvement in this TSI process with the ultimate goal of demonstrating a resist technology capable of 0.10 {micro}m critical dimension (CD). The results of these attempted improvements to the TSI process are described in this report.

Ray-Chaudhuri, A.; Kubiak, G.; Henderson, C.; Wheeler, D.; Pollagi, T.

1997-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "top optical images" 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

Optical Simulation of Top-emitting Organic Light Emitting Diodes H. J. Peng, C.F. Qiu, Z. L. Xie, H. Y. Chen, M. Wong and H. S. Kwok  

E-Print Network (OSTI)

8.3.3-89 Optical Simulation of Top-emitting Organic Light Emitting Diodes H. J. Peng, C.F. Qiu, Z the optical effects for the top-emitting organic light emitting diodes. The optical performance of the devices with experiments Keywords: Top-emitting organic light emitting diode, optical modeling, microcavity INTRODUCTION

Kwok, Hoi S.

22

Borehole-Wall Imaging with Acoustic and Optical Televiewers for  

Open Energy Info (EERE)

Borehole-Wall Imaging with Acoustic and Optical Televiewers for Borehole-Wall Imaging with Acoustic and Optical Televiewers for Fractured-Bedrock Aquifer Investigations Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Borehole-Wall Imaging with Acoustic and Optical Televiewers for Fractured-Bedrock Aquifer Investigations Abstract Imaging with acoustic and optical televiewers results in continuous and oriented 360 degree views of the borehole wall from which the character and orientation of lithologic and structural features can be defined for fractured-bedrock aquifer investigations. Fractures are more clearly defined under a wider range of conditions on acoustic images than on optical images including dark-colored rocks, cloudy borehole water, and coated borehole walls. However, optical images allow for the direct viewing

23

Performance confirmation of the Belle II imaging Time Of Propogation (iTOP) prototype counter  

SciTech Connect

The Bell Detector at the KEKB asymmetric-energy e{sup +}e{sup -} collider performed extremely well, logging an integrated luminosity an order of magnitude higher than the design baseline. With this inverse attobarn of integrated luminosity, time-dependent CP-violation inn the 3rd generation beauty quarks was firmly established, and is now a precision measurement. Going beyond this to explore if the Kobayashi-Maskawa mechanism is the only contributor to quark-mixing, and to interrogate the flavor sector for non-standard model enhancements, requires a detector and accelerator capable of topping this world-record luminosity by more than an order of magnitude. The Belle II detector at the upgraded Super-KEKB accelerator has been designed to meet this highly ambitious goal of operating at a luminosity approaching 10{sup 36} cm{sup -2} s{sup -1}. Such higher event rates and backgrounds require upgrade of essentially all detector subsystems, as well as their readout. Comparing the Belle composite (threshold Aerogel + Time of Flight) particle identification (PID) system with the DIRC employed by BaBar, quartz radiator internal Cherenkov photon detection proved to have higher kaon efficiency and lower pion fake rates. However, because the detector structure and CsI calorimeter will be retained, an improved barrel PID must fit within a very narrow envelope, as indicated in Figure 1. To effectively utilize this space, a more compact detector concept based on the same quartz radiators, but primarily using photon arrival time was proposed. This Time Of Propagation (TOP) counter was studied in a number of earlier prototype tests. Key to the necessary 10's of picosecond single-photon timing has been the development of the so-called SL-10 Micro-Channel Plate Photo-Multiplier Tube (MCP-PMT), which has demonstrated sub-40 ps single photon Transit Time Spread TTS. Further simulation study of this detector concept indicated that a focusing mirror in the forward direction, as well as a modest image expansion volume and more highly pixelated image plane improve the theoretical detector performance, since timing alone is limited by chromatic dispersion of the Cherenkov photons. This imaging-TOP (or iTOP) counter is the basis of Belle II barrel PID upgrade. However, a number of critical performance parameters must be demonstrated prior to releasing this prototype design for production manufacture.

Schwartz, Alan; Liu, Yang; Belhorn, Matt; /Cincinnati U.; Browder, Thomas; Varner, Gary; Andrew, Matt; Rosen, Marc; Barrett, Matthew; Nishimura, Kurtis; Anderson, Eric /Hawaii U.; Iijima, Toru; /Nagoya U. /PNL, Richland

2011-10-17T23:59:59.000Z

24

Optical frequency domain imaging of human retina and choroid  

E-Print Network (OSTI)

Optical coherence tomography (OCT) has emerged as a practical noninvasive technology for imaging the microstructure of the human eye in vivo. Using optical interferometry to spatially-resolve backreflections from within ...

Lee, Edward Chin Wang

2006-01-01T23:59:59.000Z

25

Automatic registration of LIDAR and optical images of urban scenes  

E-Print Network (OSTI)

Fusion of 3D laser radar (LIDAR) imagery and aerial optical imagery is an efficient method for constructing 3D virtual reality models. One difficult aspect of creating such models is registering the optical image with the ...

Mastin, Dana Andrew

26

Picosecond Optical MCPI-Based Imagers  

Science Conference Proceedings (OSTI)

We present the desired performance specifications for an advanced optical imager, which borrows practical concepts in high-speed microchannel plate (MCP) intensified x-ray stripline imagers and time-dilation techniques. With a four-fold speed improvement in state-of-the-art high-voltage impulse drivers, and novel atomic-layer deposition MCPs, we tender a design capable of 5 ps optical gating without the use of magnetic field confinement of the photoelectrons. We analyze the electron dispersion effects in the MCP and their implications for gating pulses shorter than the MCP transit time. We present a wideband design printed-circuit version of the Series Transmission Line Transformer (STLT) that makes use of 50-ohm coaxial 1.0 mm (110 GHz) and 1.85 mm (65 GHz) hermetically sealed vacuum feedthroughs and low-dispersion Teflon/Kapton circuit materials without the use of any vias. The STLT matches impedance at all interfaces with a 16:1 impedance (4:1 voltage) reduction, and delivers a dispersion-limited sharp impulse to the MCP strip. A comparison of microstrip design calculations is given, showing variances between method of moments, empirical codes, and finite element methods for broad, low-impedance traces. Prototype performance measurements are forthcoming.

None

2012-10-01T23:59:59.000Z

27

Evaluation of the Hydrometeor Layers in the East and West Pacific Within ISCCP Cloud Top Pressure-Optical Depth Bins Using Merged CloudSat and CALIPSO Data  

Science Conference Proceedings (OSTI)

ISCCP provides a multi-decadal and global description of cloud properties that are often grouped into joint histograms of column visible optical depth (?) and effective cloud top pressure (Ptop). It has not been possible until recently to know the ...

Gerald G. Mace; Forrest J. Wrenn

28

Advances in Optical Spectroscopy and Imaging of Breast Lesions  

SciTech Connect

A review is presented of recent advances in optical imaging and spectroscopy and the use of light for addressing breast cancer issues. Spectroscopic techniques offer the means to characterize tissue components and obtain functional information in real time. Three-dimensional optical imaging of the breast using various illumination and signal collection schemes in combination with image reconstruction algorithms may provide a new tool for cancer detection and monitoring of treatment.

Demos, S; Vogel, A J; Gandjbakhche, A H

2006-01-03T23:59:59.000Z

29

Optical Synchrotron Radiation Beam Imaging with a Digital Mask  

SciTech Connect

We have applied a new imaging/optical masking technique, which employs a digital micro-mirror device (DMD) and optical synchrotron radiation (OSR), to perform high dynamic range (DR) beam imaging at the JLAB Energy Recovery Linac and the SLAC/SPEAR3 Synchrotron Light Source. The OSR from the beam is first focused onto the DMD to produce a primary image; selected areas of this image are spatially filtered by controlling the state of individual micro-mirrors; and finally, the filtered image is refocused onto a CCD camera. At JLAB this technique has been used successfully to view the beam halo with a DR ~ 105. At SPEAR3 the DMD was used to filter out the bright core of the stored beam to study the turn-by-turn dynamics of the 10-3 weaker injected beam. We describe the optical performance, present limitations and our plans to improve the DR of both experimental systems.

Fiorito, R B; Zhang, H D; Corbett, W J; Fisher, A S; Mok, W Y; Tian, K; Douglas, D; Wilson, F G; Zhang, S

2012-11-01T23:59:59.000Z

30

April 15, 1993 / Vol. 18, No. 8 / OPTICS LETTERS 565 Confocal microscopy through a fiber-optic imaging bundle  

E-Print Network (OSTI)

). In the system of Fig. 1, one end of a fiber-optic imaging bundle is placed at the focal plane of lens LiApril 15, 1993 / Vol. 18, No. 8 / OPTICS LETTERS 565 Confocal microscopy through a fiber-optic microscope with a fiber-optic imaging bundle is presented, and experimental results are shown todemonstrate

Gmitro, Arthur F.

31

High-resolution retinal imaging using adaptive optics and Fourier-domain optical coherence tomography  

DOE Patents (OSTI)

This invention permits retinal images to be acquired at high speed and with unprecedented resolution in three dimensions (4.times.4.times.6 .mu.m). The instrument achieves high lateral resolution by using adaptive optics to correct optical aberrations of the human eye in real time. High axial resolution and high speed are made possible by the use of Fourier-domain optical coherence tomography. Using this system, we have demonstrated the ability to image microscopic blood vessels and the cone photoreceptor mosaic.

Olivier, Scot S. (Livermore, CA); Werner, John S. (Davis, CA); Zawadzki, Robert J. (Sacramento, CA); Laut, Sophie P. (Pasedena, CA); Jones, Steven M. (Livermore, CA)

2010-09-07T23:59:59.000Z

32

Biological image restoration in optical-sectioning microscopy using prototype image constraints  

Science Conference Proceedings (OSTI)

The deconvolution of images obtained by means of optical-sectioning widefield fluorescence microscopy, is a relevant problem in biological applications. Several methods have been proposed in the last few years, with different degrees of success, to improve ...

M. R. P. Homem; N. D. A. Mascarenhas; L. F. Costa; C. Preza

2002-12-01T23:59:59.000Z

33

Quantum teleportation of optical images with frequency conversion  

E-Print Network (OSTI)

We describe a new version of continuous variables quantum holographic teleportation of optical images. Unlike the previously proposed scheme, it is based on the continuous variables quantum entanglement between the light fields of different frequencies and allows for the wavelength conversion between the original and the teleported images. The frequency tunable holographic teleportation protocol can be used as a part of light-matter interface in parallel quantum information processing and parallel quantum memory

Liubov V. Magdenko; Ivan V. Sokolov; Mikhail I. Kolobov

2006-02-24T23:59:59.000Z

34

Reflective optical imaging system for extreme ultraviolet wavelengths  

DOE Patents (OSTI)

This invention is comprised of a projection reflection optical system having two mirrors in a coaxial, four reflection configuration to reproduce the image of an object. The mirrors have aspherical reflection surfaces to provide a very high resolution of object feature wavelengths less than 200 {mu}m, and preferably less than 100 {mu}m. An image resolution of features less than 0.05--0.1 {mu}m, is obtained over a large area field; i.e., 25.4 mm {times} 25.4 mm, with a distortion less than 0.1 of the resolution over the image field.

Viswanathan, V.K.; Newnam, B.E.

1991-12-31T23:59:59.000Z

35

Optical image storage in ion implanted PLZT ceramics  

DOE Green Energy (OSTI)

Optical images can be stored in transparent lead-lanthanum-zirconate-titanate (PLZT) ceramics by exposure to near-uv light with photon energies greater than the band gas energy of approx. 3.35 eV. The image storage process relies on optically induced changes in the switching properties of ferroelectric domains (photoferroelectric effect). Stored images are nonvolatile but can be erased by uniform uv illumination and simultaneous application of an electric field. Although high quality images, with contrast variations of greater than or equal to 100:1 and spatial resolution of approx. 10 ..mu..m, can be stored using the photoferroelectric effect, relatively high exposure energies (approx. 100 mJ/cm/sup 2/) are required to store these images. This large exposure energy severely limits the range of possible applications of nonvolatile image storage in PLZT ceramics. It was found in H, He, and Ar implanted PLZT that the photosensitivity can be significantly increased by ion implantation into the surface to be exposed. The photosensitivity after implantation with 5 x 10/sup 14/ 500 keV Ar/cm/sup 2/ is increased by about three orders of magnitude over that of unimplanted PLZT. The image storage process and the effect of ion implantation is presented along with a phenomenological model which describes the enhancement in photosensitivity obtained by ion implantation. This model takes into account both light- and ion implantation-induced changes in conductivity and gives quantitative agreement with the measured changes in the coercive voltage with light intensity for ion implanted PLZT.

Peercy, P. S.; Land, C. E.

1980-01-01T23:59:59.000Z

36

Applications of Fourier Domain Mode Locked lasers for optical coherence tomography imaging  

E-Print Network (OSTI)

Optical coherence tomography (OCT) is a micrometer-resolution imaging technique that produces cross-sectional images of sample microstructure by measuring the amplitude and echo time delay of backscattered light. OCT imaging ...

Adler, Desmond Christopher, 1978-

2009-01-01T23:59:59.000Z

37

Top Produktion  

NLE Websites -- All DOE Office Websites (Extended Search)

Teilchenzerfall und -vernichtung Top Produktion Ein Quark (in einem Proton) und ein Antiquark (in einem Antiproton), welche mit grosser Energie zusammenstossen, knnen in ein top...

38

Top images used with permission from the Center for Sustainable Energy, Kansas State University "Earth, Wind, and Fire Sustainable Energy for the 21st  

E-Print Network (OSTI)

"Earth, Wind, and Fire ­ Sustainable Energy for the 21st Century" National Science Foundation ResearchTop images used with permission from the Center for Sustainable Energy, Kansas State University, 2011- August 5, 2011) at Kansas State University in the area of sustainable energy. This research

Peterson, Blake R.

39

Objective assessment of image quality (OAIQ) in fluorescence-enhanced optical imaging  

E-Print Network (OSTI)

The statistical evaluation of molecular imaging approaches for detecting, diagnosing, and monitoring molecular response to treatment are required prior to their adoption. The assessment of fluorescence-enhanced optical imaging is particularly challenging since neither instrument nor agent has been established. Small animal imaging does not address the depth of penetration issues adequately and the risk of administering molecular optical imaging agents into patients remains unknown. Herein, we focus upon the development of a framework for OAIQ which includes a lumpy-object model to simulate natural anatomical tissue structure as well as the non-specific distribution of fluorescent contrast agents. This work is required for adoption of fluorescence-enhanced optical imaging in the clinic. Herein, the imaging system is simulated by the diffusion approximation of the time-dependent radiative transfer equation, which describes near infra-red light propagation through clinically relevant volumes. We predict the time-dependent light propagation within a 200 cc breast interrogated with 25 points of excitation illumination and 128 points of fluorescent light collection. We simulate the fluorescence generation from Cardio-Green at tissue target concentrations of 1, 0.5, and 0.25 µM with backgrounds containing 0.01 µM. The fluorescence boundary measurements for 1 cc spherical targets simulated within lumpy backgrounds of (i) endogenous optical properties (absorption and scattering), as well as (ii) exogenous fluorophore crosssection are generated with lump strength varying up to 100% of the average background. The imaging data are then used to validate a PMBF/CONTN tomographic reconstruction algorithm. Our results show that the image recovery is sensitive to the heterogeneous background structures. Further analysis on the imaging data by a Hotelling observer affirms that the detection capability of the imaging system is adversely affected by the presence of heterogeneous background structures. The above issue is also addressed using the human-observer studies wherein multiple cases of randomly located targets superimposed on random heterogeneous backgrounds are used in a “double-blind” situation. The results of this study show consistency with the outcome of above mentioned analyses. Finally, the Hotelling observer’s analysis is used to demonstrate (i) the inverse correlation between detectability and target depth, and (ii) the plateauing of detectability with improved excitation light rejection.

Sahu, Amit K.

2006-12-01T23:59:59.000Z

40

Developing new optical imaging techniques for single particle and molecule tracking in live cells  

SciTech Connect

Differential interference contrast (DIC) microscopy is a far-field as well as wide-field optical imaging technique. Since it is non-invasive and requires no sample staining, DIC microscopy is suitable for tracking the motion of target molecules in live cells without interfering their functions. In addition, high numerical aperture objectives and condensers can be used in DIC microscopy. The depth of focus of DIC is shallow, which gives DIC much better optical sectioning ability than those of phase contrast and dark field microscopies. In this work, DIC was utilized to study dynamic biological processes including endocytosis and intracellular transport in live cells. The suitability of DIC microscopy for single particle tracking in live cells was first demonstrated by using DIC to monitor the entire endocytosis process of one mesoporous silica nanoparticle (MSN) into a live mammalian cell. By taking advantage of the optical sectioning ability of DIC, we recorded the depth profile of the MSN during the endocytosis process. The shape change around the nanoparticle due to the formation of a vesicle was also captured. DIC microscopy was further modified that the sample can be illuminated and imaged at two wavelengths simultaneously. By using the new technique, noble metal nanoparticles with different shapes and sizes were selectively imaged. Among all the examined metal nanoparticles, gold nanoparticles in rod shapes were found to be especially useful. Due to their anisotropic optical properties, gold nanorods showed as diffraction-limited spots with disproportionate bright and dark parts that are strongly dependent on their orientation in the 3D space. Gold nanorods were developed as orientation nanoprobes and were successfully used to report the self-rotation of gliding microtubules on kinesin coated substrates. Gold nanorods were further used to study the rotational motions of cargoes during the endocytosis and intracellular transport processes in live mammalian cells. New rotational information was obtained: (1) during endocytosis, cargoes lost their rotation freedom at the late stage of internalization; (2) cargoes performed train-like motion when they were transported along the microtubule network by motor proteins inside live cells; (3) During the pause stage of fast axonal transport, cargoes were still bound to the microtubule tracks by motor proteins. Total internal reflection fluorescence microscopy (TIRFM) is another non-invasive and far-field optical imaging technique. Because of its near-field illumination mechanism, TIRFM has better axial resolution than epi-fluorescence microscopy and confocal microscopy. In this work, an auto-calibrated, prism type, angle-scanning TIRFM instrument was built. The incident angle can range from subcritical angles to nearly 90{sup o}, with an angle interval less than 0.2{sup o}. The angle precision of the new instrument was demonstrated through the finding of the surface plasmon resonance (SPR) angle of metal film coated glass slide. The new instrument improved significantly the precision in determining the axial position. As a result, the best obtained axial resolution was {approx} 8 nm, which is better than current existing instruments similar in function. The instrument was further modified to function as a pseudo TIRF microscope. The illumination depth can be controlled by changing the incident angle of the excitation laser beam or adjusting the horizontal position of the illumination laser spot on the prism top surface. With the new technique, i.e., variable-illumination-depth pseudo TIRF microscopy, the whole cell body from bottom to top was scanned.

Sun, Wei

2010-12-15T23:59:59.000Z

Note: This page contains sample records for the topic "top optical images" 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

Top Production  

NLE Websites -- All DOE Office Websites (Extended Search)

Top Principal ESTOY PERDIDO!!! Top Principal ESTOY PERDIDO!!! Protón + Antiprotón --> Top + Antitop Un quark (perteneciente a un protón) y un antiquark (perteneciente a un antiprotón), colisionando a alta energía, pueden aniquilarse para producir un quark top y un antiquark top, los cuales decaen luego hacia otras partículas. Cuadro 1: un quark de un protón y un antiquark de un antiprotón se precipitan uno al encuentro del otro. Cuadro 2: los quarks colisionan y se aniquilan.... Cuadro 3: ...en gluones virtuales. Cuadro 4: de la nube de gluones emergen un quark top y un antiquark top. Cuadro 5: los quarks comienzan separarse, estirando el campo de fuerza de color (campo de gluones) entre ambos. Cuadro 6: antes de que el quark top y el antiquark top se hayan separado mucho, ambos decaen hacia un quark bottom y un antiquark bottom

42

Statistical methods for 2D-3D registration of optical and LIDAR images  

E-Print Network (OSTI)

Fusion of 3D laser radar (LIDAR) imagery and aerial optical imagery is an efficient method for constructing 3D virtual reality models. One difficult aspect of creating such models is registering the optical image with the ...

Mastin, Dana Andrew

2009-01-01T23:59:59.000Z

43

Fiber optic spectroscopic digital imaging sensor and method for flame properties monitoring  

DOE Patents (OSTI)

A system for real-time monitoring of flame properties in combustors and gasifiers which includes an imaging fiber optic bundle having a light receiving end and a light output end and a spectroscopic imaging system operably connected with the light output end of the imaging fiber optic bundle. Focusing of the light received by the light receiving end of the imaging fiber optic bundle by a wall disposed between the light receiving end of the fiber optic bundle and a light source, which wall forms a pinhole opening aligned with the light receiving end.

Zelepouga, Serguei A. (Hoffman Estates, IL); Rue, David M. (Chicago, IL); Saveliev, Alexei V. (Chicago, IL)

2011-03-15T23:59:59.000Z

44

Top Quark  

NLE Websites -- All DOE Office Websites (Extended Search)

quark TOP Volver Principal ESTOY PERDIDO El 2 de marzo de 1995, el Fermilab anunci el descubrimiento del quark top, el ltimo de los seis quarks, cuya existencia haba sido...

45

Top Event  

NLE Websites -- All DOE Office Websites (Extended Search)

evento Top Volver Principal ESTOY PERDIDO El quark top --> un quark bottom y un bosn W; luego el W+ --> e+ ms un neutrino, y el quark bottom (que emerge como un antimesn B...

46

High speed optical coherence microscopy with autofocus adjustment and a miniaturized endoscopic imaging probe  

E-Print Network (OSTI)

Optical coherence microscopy (OCM) is a promising technique for high resolution cellular imaging in human tissues. An OCM system for high-speed en face cellular resolution imaging was developed at 1060 nm wavelength at ...

Aguirre, Aaron Dominic

47

Three dimensional imaging detector employing wavelength-shifting optical fibers  

DOE Patents (OSTI)

A novel detector element structure and method for its use is provided. In a preferred embodiment, one or more inorganic scintillating crystals are coupled through wavelength shifting optical fibers (WLSFs) to position sensitive photomultipliers (PS-PMTs). The superior detector configuration in accordance with this invention is designed for an array of applications in high spatial resolution gamma ray sensing with particular application to SPECT, PET and PVI imaging systems. The design provides better position resolution than prior art devices at a lower total cost. By employing wavelength shifting fibers (WLSFs), the sensor configuration of this invention can operate with a significant reduction in the number of photomultipliers and electronics channels, while potentially improving the resolution of the system by allowing three dimensional reconstruction of energy deposition positions.

Worstell, William A. (Framingham, MA)

1997-01-01T23:59:59.000Z

48

B-Spline Image Model for Energy Minimization-Based Optical Flow Estimation  

Science Conference Proceedings (OSTI)

Robust estimation of the optical flow is addressed through a multiresolution energy minimization. It involves repeated evaluation of spatial and temporal gradients of image intensity which rely usually on bilinear interpolation and image filtering. We ... Keywords: Optical flow (OF), robust estimation, splines

G. Le Besnerais; F. Champagnat

2006-10-01T23:59:59.000Z

49

Optical  

NLE Websites -- All DOE Office Websites (Extended Search)

Optical Optical fiber-based single-shot picosecond transient absorption spectroscopy Andrew R. Cook a͒ and Yuzhen Shen Department of Chemistry, Brookhaven National Laboratory, Upton, New York 11973, USA ͑Received 27 January 2009; accepted 29 May 2009; published online 17 July 2009͒ A new type of single-shot transient absorption apparatus is described based on a bundle of optical fibers. The bundle contains 100 fibers of different lengths, each successively giving ϳ15 ps longer optical delay. Data are collected by imaging light from the exit of the bundle into a sample where it is overlapped with an electron pulse or laser excitation pulse, followed by imaging onto a charge coupled device ͑CCD͒ detector where the intensity of light from each fiber is measured simultaneously. Application to both ultrafast pump-probe spectroscopy and pulse radiolysis is demonstrated. For pulse

50

A survey of advanced excimer optical imaging and lithography  

Science Conference Proceedings (OSTI)

The first item discussed in this paper is to estimate the future trend regarding minimum geometry and the optical parameters

Koichi Matsumoto; Kyoichi Suwa

1998-01-01T23:59:59.000Z

51

Laboratory Calibration of the Optical Transient Detector and the Lightning Imaging Sensor  

Science Conference Proceedings (OSTI)

The authors present in detail the laboratory apparatus and techniques that were used to complete a full radiometric calibration of two space-based lightning detectors: the optical transient detector (OTD) and the lightning imaging sensor (LIS) ...

William J. Koshak; Mike F. Stewart; Hugh J. Christian; James W. Bergstrom; John M. Hall; Richard J. Solakiewicz

2000-07-01T23:59:59.000Z

52

Performance Assessment of the Optical Transient Detector and Lightning Imaging Sensor. Part I: Predicted Diurnal Variability  

Science Conference Proceedings (OSTI)

Laboratory calibration and observed background radiance data are used to determine the effective sensitivities of the Optical Transient Detector (OTD) and Lightning Imaging Sensor (LIS), as functions of local hour and pixel location within the ...

Dennis J. Boccippio; William J. Koshak; Richard J. Blakeslee

2002-09-01T23:59:59.000Z

53

Optical flow image analysis of facial expressions of human emotion: forensic applications  

Science Conference Proceedings (OSTI)

The objective of this study was to induce emotions in individuals to determine if specific facial movements could be detected and analysed by the optical flow technique. This analysis is in the form of motion vector plots. The procedure ascertains if ... Keywords: emotion, facial expression, forensics, image analysis, optical flow, physiological measurement, surveillance

Carmen J. Duthoit; T. Sztynda; S. K. L. Lal; B. T. Jap; J. I. Agbinya

2008-01-01T23:59:59.000Z

54

Mathematical modeling of fluorescence diffuse optical imaging of cell membrane potential changes  

E-Print Network (OSTI)

The aim of this paper is to provide a mathematical model for spatial distribution of membrane electrical potential changes by fluorescence diffuse optical tomography. We derive the resolving power of the imaging method in the presence of measurement noise. The proposed mathematical model can be used for cell membrane tracking with the resolution of the optical microscope.

Habib Ammari; Josselin Garnier; Laure Giovangigli

2013-07-08T23:59:59.000Z

55

Upward Electrical Discharges From Thunderstorm Tops  

Science Conference Proceedings (OSTI)

A variety of storm top electrical discharges have been observed using several types of low-light imagers, film, and the human eye. Recently, a video recorded an unprecedented, bright blue upward discharge from a tropical thunderstorm top near ...

Walter A. Lyons; Thomas E. Nelson; Russell A. Armstrong; Victor P. Pasko; Mark A. Stanley

2003-04-01T23:59:59.000Z

56

Imaging carrier and phonon transport in Si using ultrashort optical pulses  

DOE Green Energy (OSTI)

A series of experiments have been conducted that microscopically image thermal diffusion and surface acoustic phonon propagation within a single crystallite of a polycrystalline Si sample. The experimental approach employs ultrashort optical pulses to generate an electron-hole plasma and a second probe pulse is used to image the evolution of the plasma. By decomposing the signal into a component that varies with delay time and a steady state component that varies with pump modulation frequency, the respective influence of carrier recombination and thermal diffusion are identified. Additionally, the coherent surface acoustic phonon component to the signal is imaged using a Sagnac interferometer to monitor optical phase.

David H. Hurley; O. B. Wright; O. Matsuda; B. E. McCandless; S. Shinde

2009-01-01T23:59:59.000Z

57

Measurements of Rainfall Properties Using Long Optical Path Imaging  

Science Conference Proceedings (OSTI)

Measurements of long-path optical attenuation of visible light due to rainfall are described, from which rainfall parameters are derived. Novel aspects of the method are the use of a distant uncontrolled and broadband spotlight source, and ...

S. G. Bradley; C. D. Stow; C. A. Lynch-Blosse

2000-06-01T23:59:59.000Z

58

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... Title: Nanotechnology--Nanomanufacturing; Optical Nano Vision. Description: A new optical imaging technology under ...

59

Magneto-optical imaging of transport current densities in superconductors  

SciTech Connect

Direct imaging of the paths of transport currents in superconductors creates many new possibilities for exploring the basic features of vortex pinning mechanisms and for improving the performance of superconducting materials. A technique for imaging the path and magnitude of the transport current density flowing in superconductors is described. Results are given for a 37-filament BSCCO 2223 powder-in-tube wire, showing a highly inhomogeneous current path within the filaments.

Crabtree, G.W.; Welp, U.; Gunter, D.O.; Zhong, W.; Balachandran, U. [Argonne National Lab., IL (United States); Haldar, P.; Sokolowski, R.S. [Intermagnetics General Corp., Latham, NY (United States); Vlasko-Vlasov, V.K.; Nikitenko, V.I. [Inst. for Solid State Physics, Moscow (Russian Federation)

1995-12-31T23:59:59.000Z

60

Final Report: Imaging of Buried Nanoscale Optically Active Materials  

Science Conference Proceedings (OSTI)

This is a final report covering work done at University of Maryland to develop a Ballistic Electron Emission Luminescence (BEEL) microscope. This technique was intended to examine the carrier transport and photon emission in deeply buried optically-active layers and thereby provide a means for materials science to unmask the detailed consequences of experimentally controllable growth parameters, such as quantum dot size, statistics and orientation, and defect density and charge recombination pathways.

Appelbaum, Ian

2011-07-05T23:59:59.000Z

Note: This page contains sample records for the topic "top optical images" 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

Optical imaging through turbid media with a degenerate four-wave mixing correlation time gate  

DOE Patents (OSTI)

Optical imaging through turbid media is demonstrated using a degenerate four-wave mixing correlation time gate. An apparatus and method for detecting ballistic and/or snake light while rejecting unwanted diffusive light for imaging structures within highly scattering media are described. Degenerate four-wave mixing (DFWM) of a doubled YAG laser in rhodamine 590 is used to provide an ultrafast correlation time gate to discriminate against light that has undergone multiple scattering and therefore has lost memory of the structures within the scattering medium. Images have been obtained of a test cross-hair pattern through highly turbid suspensions of whole milk in water that are opaque to the naked eye, which demonstrates the utility of DFWM for imaging through turbid media. Use of DFWM as an ultrafast time gate for the detection of ballistic and/or snake light in optical mammography is discussed.

Sappey, Andrew D. (Golden, CO)

1998-04-14T23:59:59.000Z

62

Final Report: Deconvolution of Adaptive Optics Images of Titan, Neptune, and Uranus  

SciTech Connect

This project involved images of Titan, Neptune, and Uranus obtained using the 10-meter W.M. Keck II Telescope and its adaptive optics system. An adaptive optics system corrects for turbulence in the Earth's atmosphere by sampling the wavefront and applying a correction based on the distortion measured for a known source within the same isoplanatic patch as the science target (for example, a point source such as a star). Adaptive optics can achieve a 10-fold increase in resolution over that obtained by images without adaptive optics (for example, Saturn's largest moon Titan is unresolved without adaptive optics but at least 10 resolution elements can be obtained across the disk in Keck adaptive optics images). The adaptive optics correction for atmospheric turbulence is not perfect; a point source is converted to a diffraction-limited core surrounded by a ''halo''. This halo is roughly the size and shape of the uncorrected point spread function one would observe without adaptive optics. In order to enhance the sharpness of the Keck images it is necessary to apply a deconvolution algorithm to the data. Many such deconvolution algorithms exist such as maximum likelihood and maximum entropy. These algorithms suffer to various degrees from noise amplification and creation of artifacts near sharp edges (''ringing''). In order to deconvolve the Keck images I have applied an algorithm specifically developed for observations of planetary bodies, the myopic deconvolution algorithm MISTRAL (''Myopic Iterative STep-preserving Restoration ALgorithm'') (Conan et al. 1998, 2000). MISTRAL was developed by ONERA (Office National d'Etudes et de Recherches Aerospatiales) and has been extensively tested on simulated and real AO observations, including observations of Titan (Coustenis et al.2001), Io (Marchis et al.2002, 2001), and asteroids (Hestroffer et al.2001, Rosenberg et al.2001, Makhoul et al.2001). Compared to more classical methods, MISTRAL avoids noise amplification and ringing artifacts, and better restores the initial photometry (Conan et al.1998). MISTRAL uses a stochastic approach to finding the best image reconstruction, using information about the object and the PSF. The general conclusions from this deconvolution effort is that MISTRAL does an excellent job of enhancing the sharpness of the data and preserving the photometry. The continued use of this algorithm for deconvolution of adaptive optics data is strongly suggested.

Gibbard, S; Marchis, F

2002-12-20T23:59:59.000Z

63

Final Report for The University of Texas at Arlington Optical Medical Imaging Section of Advanced Imaging Research Center  

SciTech Connect

The goal of this project was to create state-of-the-art optical medical imaging laboratories for the Biomedical Engineering faculty and student researchers of the University of Texas at Arlington (UTA) on the campus of the University of Texas Southwestern Medical Center (UTSW). This has been successfully achieved. These laboratories provide an unprecedented opportunity for the bioengineers (from UTA) to bring about new breakthroughs in medical imaging using optics. Specifically, three major laboratories have been successfully established and state-of-the-art scientific instruments have been placed in the labs. As a result of this grant, numerous journal and conference publications have been generated, patents for new inventions have been filed and received, and many additional grants for the continuation of the research has been received.

Khosrow Behbehani

2013-02-26T23:59:59.000Z

64

Infrared Optical Imaging Techniques for Gas Visualization and Measurement  

E-Print Network (OSTI)

Advancement in infrared imaging technology has allowed the thermal imaging to detect and visualize several gases, mostly hydrocarbon gases. In addition, infrared cameras could potentially be used as a non-contact temperature measurement for gas and vapor. However, current application of infrared imaging techniques for gas measurements are still limited due to several uncertainties in their performance parameters. The aim of this research work was to determine the key factors in the application of infrared imaging technology for gas visualization and a non-contact temperature measurement. Furthermore, the concentration profile and emission rate of the gas are predicted by combining the application of the infrared imaging method with gas dispersion modeling. In this research, infrared cameras have been used to visualize liquefied natural gas (LNG) plumes from LNG spills on water. The analyses of the thermograms showed that the apparent temperatures were different from the thermocouple measurement which occurred due to the assumption of that the object emissivity was always equal to unity. The emissivity for pure methane gas and a mixture of methane and atmospheric gases were then evaluated in order to obtain the actual temperature distribution of the gas cloud. The results showed that by including the emissivity value of the gas, the temperature profile of the dispersed gas obtained from a thermal imaging measurement was in good agreement with the measurement using the thermocouples. Furthermore, the temperature distribution of the gas was compared to the concentration of a dispersed LNG vapor cloud to obtain a correlation between the temperature and the concentration of the cloud. Other application of infrared imaging technique was also conducted for leak detection of natural gas from a pipeline. The capability of an infrared camera to detect a fugitive gas leak was combined with the simulation of vapor discharge and dispersion in order to obtain a correlation between the emission rates and the sizes of the gas plume to the minimum detectable concentration. The relationship of the methane gas cloud size to the gas emission rate was highly dependent to the prevailing atmospheric condition. The results showed that the correlation were best to predict the emission rate less than 0.2 kg/s. At higher emission rate, the increase in gas release rate did not change the size of the cloud significantly.

Safitri, Anisa

2011-05-01T23:59:59.000Z

65

Optical fiber imaging for high speed plasma motion diagnostics: Applied to low voltage circuit breakers  

Science Conference Proceedings (OSTI)

An integrated portable measurement system is described for the study of high speed and high temperature unsteady plasma flows such as those found in the vicinity of high current switching arcs. An array of optical fibers allows the formation of low spatial resolution images, with a maximum capture rate of 1x10{sup 6} images per second (1 MHz), with 8 bit intensity resolution. Novel software techniques are reported to allow imaging of the arc; and to measure arc trajectories. Results are presented on high current (2 kA) discharge events in a model test fixture and on the application to a commercial low voltage circuit breaker.

McBride, J. W. [School of Engineering Sciences, University of Southampton, Highfield, Southampton SO17 1BJ (United Kingdom); Balestrero, A.; Tribulato, G. [ABB SACE DIVISION, ABB S.p.A., Via Baioni, Bergamo 35 IT-24123 (Italy); Ghezzi, L. [ABB SACE DIVISION, ABB S.p.A., Viale dell'Industria, Vittuone (MI)18 IT-20010 (Italy); Cross, K. J. [Taicaan Ltd., 2 Venture Road, Southampton Science Park, Southampton, Hampshire SO16 7NP (United Kingdom)

2010-05-15T23:59:59.000Z

66

Optical Physics of Imaging and Interferometric Phased Arrays  

E-Print Network (OSTI)

Microwave, submillimetre-wave, and far-infrared phased arrays are of considerable importance for astronomy. We consider the behaviour imaging phased arrays and interferometric phased arrays from a functional perspective. It is shown that the average powers, field correlations, power fluctuations, and correlations between power fluctuations at the output ports of an imaging or interferometric phased array can be found once the synthesised reception patterns are known. The reception patterns do not have to be orthogonal or even linearly independent. It is shown that the operation of phased arrays is intimately related to the mathematical theory of frames, and that the theory of frames can be used to determine the degree to which any class of intensity or field distribution can be reconstructed unambiguously from the complex amplitudes of the travelling waves at the output ports. The theory can be used to set up a likelihood function that can, through Fisher information, be used to determine the degree to which a phased array can be used to recover the parameters of a parameterised source. For example, it would be possible to explore the way in which a system, perhaps interferometric, might observe two widely separated regions of the sky simultaneously.

Stafford Withington; George Saklatvala; Michael P. Hobson

2006-09-12T23:59:59.000Z

67

STAR-GALAXY CLASSIFICATION IN MULTI-BAND OPTICAL IMAGING  

Science Conference Proceedings (OSTI)

Ground-based optical surveys such as PanSTARRS, DES, and LSST will produce large catalogs to limiting magnitudes of r {approx}> 24. Star-galaxy separation poses a major challenge to such surveys because galaxies-even very compact galaxies-outnumber halo stars at these depths. We investigate photometric classification techniques on stars and galaxies with intrinsic FWHM scenario (SVM{sub best}) where the training data are (unrealistically) a random sampling of the data in both signal-to-noise and demographics and (2) a more realistic scenario where training is done on higher signal-to-noise data (SVM{sub real}) at brighter apparent magnitudes. Testing with COSMOS ugriz data, we find that HB outperforms ML, delivering {approx}80% completeness, with purity of {approx}60%-90% for both stars and galaxies. We find that no algorithm delivers perfect performance and that studies of metal-poor main-sequence turnoff stars may be challenged by poor star-galaxy separation. Using the Receiver Operating Characteristic curve, we find a best-to-worst ranking of SVM{sub best}, HB, ML, and SVM{sub real}. We conclude, therefore, that a well-trained SVM will outperform template-fitting methods. However, a normally trained SVM performs worse. Thus, HB template fitting may prove to be the optimal classification method in future surveys.

Fadely, Ross; Willman, Beth [Haverford College, Department of Physics and Astronomy, 370 Lancaster Ave., Haverford, PA 19041 (United States); Hogg, David W. [Center for Cosmology and Particle Physics, Department of Physics, New York University, 4 Washington Place, New York, NY 10003 (United States)

2012-11-20T23:59:59.000Z

68

Optical and x-ray imaging of electron beams using synchrotron emission  

SciTech Connect

In the case of very low eniittance electron and positron storage ring beams, it is impossible to make intrusive measurements of beam properties without increasing the emittance and possibly disrupting the beam. In cases where electron or positron beams have high average power densities (such as free electron laser linacs), intrusive probes such as wires and optical transition radiation screens or Cherenkov emitting screens can be easily damaged or destroyed. The optical and x-ray emissions from the bends in the storage rings and often from linac bending magnets can be used to image the beam profile to obtain emittance information about the beam. The techniques, advantages and limitations of using both optical and x-ray synchrotron emission to measure beam properties are discussed and the possibility of single bunch imaging is considered. The properties of suitable imagers and converters such as phosphors are described. Examples of previous, existing and planned applications are given where available, including a pinhole imaging system currently being designed for the Advanced Photon Source at Argonne National Laboratory.

Wilke, M.D.

1994-12-01T23:59:59.000Z

69

Magneto-Optical Images from the Superconductivity & Magnetism Low-temperature Laboratory  

DOE Data Explorer (OSTI)

This is a small, online collection of video supplements to published papers, images, Flash movies, etc. Activities of the Superconductivity and Magnetism Low-Temperature Lab are focused on the experimental studies of superconductivity, magnetism and their coexistence in novel materials at low temperatures. In addition to the magneto-optical gallery, see the video supplements at http://www.cmpgroup.ameslab.gov/supermaglab/video/index.html

Condensed Matter Physics Group (Iowa State University and Ames Laboratory)

70

Improved fluorescence-enhanced optical imaging and tomography by enhanced excitation light rejection  

E-Print Network (OSTI)

Fluorescence enhanced optical imaging and tomography studies involve the detection of weak fluorescent signals emanating from nano- to picomolar concentrations of exogenous or endogenously produced fluorophore concurrent with the rejection of an overwhelmingly large component of backscattered excitation light. The elimination of the back-reflected excitation light of the collected signal remains a major and often unrecognized challenge for further reducing the noise floor and increasing sensitivity of small animal fluorescence imaging. In this dissertation, we adapted collimating and gradient index (GRIN) lenses in an existing frequency-domain system to improve excitation light rejection and enhance planar and tomographic imaging. To achieve this goal, we developed planar and tomographic imaging systems based upon ray tracing calculations for improved rejection of excitation light. The “out-of-band (S (?x))” to “in-band (S (?m) - S (?x))” signal ratio assessing excitation leakage was acquired with and without collimating optics. The addition of collimating optics resulted in a 51 to 75% reduction in the transmission ratio of (S (?x))/ (S (?m) - S (?x)) for the phantom studies and an increase of target to background ratio (TBR) from 11% to 31% in animal studies. Additionally, we presented results demonstrating the improvement of model match between experiments and forward simulation models by adaptation of GRIN lens optics to a breast phantom study. In particular, 128 GRIN lenses on the fiber bundle face were employed to align the collected excitation and emission light normal to the filter surface in an existing frequency-domain system. As a result of GRIN lens collimation, we reduced the transmission ratio between 10 and 86 % and improved the model match for tomographic reconstruction of one (1 cm3) and two (0.1 cm3) targets in a 1087 cm3 of breast phantom. Ultimately, this work improves the sensitivity of NIR fluorescence imaging by enhancing the rejection of excitation light and shows that the current sensitivity challenges for translating fluorescence-enhanced optical imaging into the clinic can be overcome.

Hwang, Kil Dong

2006-12-01T23:59:59.000Z

71

Three dimensional optical manipulation and structural imaging of soft materials by use of laser tweezers and multimodal nonlinear microscopy  

E-Print Network (OSTI)

We develop an integrated system of holographic optical trapping and multimodal nonlinear microscopy and perform simultaneous three-dimensional optical manipulation and non-invasive structural imaging of composite soft-matter systems. We combine different nonlinear microscopy techniques such as coherent anti-Stokes Raman scattering, multi-photon excitation fluorescence and multi-harmonic generation, and use them for visualization of long-range molecular order in soft materials by means of their polarized excitation and detection. The combined system enables us to accomplish both, manipulation in composite soft materials such as colloidal inclusions in liquid crystals as well as imaging of each separate constituents of the composite material in different nonlinear optical modalities. We also demonstrate optical generation and control of topological defects and simultaneous reconstruction of their three-dimensional long-range molecular orientational patterns from the nonlinear optical images.

Rahul P. Trivedi; Taewoo Lee; Kris A. Bertness; Ivan I. Smalyukh

2010-11-17T23:59:59.000Z

72

Heart wall velocimetry and exogenous contrast-based cardiac flow imaging in Drosophila melanogaster using Doppler optical coherence tomography  

E-Print Network (OSTI)

Drosophila melanogaster (fruit fly) is a central organism in biology and is becoming increasingly important in the cardiovascular sciences. Prior work in optical imaging of the D. melanogaster heart has focused on static ...

Choma, Michael A.

73

Optics  

NLE Websites -- All DOE Office Websites (Extended Search)

Optics A computer program to calculate the optical properties of glazing systems and laminates. The program can be used to construct new laminates from existing components and...

74

Top Science of 2013  

NLE Websites -- All DOE Office Websites (Extended Search)

Space probes predict hazards to protect spacecraft Space probes predict hazards to protect spacecraft /science-innovation/_assets/images/icon-science.jpg Top Science of 2013 Our strong interdisciplinary teaming and unique research facilities allow us to develop solutions to complex problems, and to support partners and collaborators, all with the goal of strengthening national security and making a safer world. Space probes predict hazards to protect spacecraft placeholder Researchers think they've solved a 50-year-old space mystery about how electrons within the Van Allen radiation belts that surround our planet can become energetic enough to cripple orbiting satellites. With data collected by space-probe instruments, they discovered how electromagnetic radio waves cause electrons in these belts to greatly

75

Top Science of 2013  

NLE Websites -- All DOE Office Websites (Extended Search)

RAPTOR telescope witnesses black hole birth RAPTOR telescope witnesses black hole birth /science-innovation/_assets/images/icon-science.jpg Top Science of 2013 Our strong interdisciplinary teaming and unique research facilities allow us to develop solutions to complex problems, and to support partners and collaborators, all with the goal of strengthening national security and making a safer world. RAPTOR telescope witnesses black hole birth placeholder The first "thinking telescope" RAPTOR found the birth of big black holes, possibly the most powerful events since the big bang. This robotic array screens 100 million objects and runs real-time analysis-autonomously alerting us when there's a discovery or a threat. In 2006, RAPTOR was the first of its kind to make a discovery: the birth of

76

Fluorescence enhanced optical tomography on breast phantoms with measurements using a gain modulated intensified CCD imaging system  

E-Print Network (OSTI)

Fluorescence-enhanced optical imaging using near-infrared (NIR) light developed for in-vivo molecular targeting and reporting of cancer provides promising opportunities for diagnostic imaging. However, prior to the administration of unproven contrast agents, the benefits of fluorescence-enhanced optical imaging must be assessed in feasibility phantom studies. A novel intensified charge-coupled device (ICCD) imaging system has been developed to perform 3-D fluorescence tomographic imaging in the frequency-domain using near-infrared contrast agents. This study is unique since it (i) employs a large tissue-mimicking phantom (~1087 cc), which is shaped and sized to resemble a female breast and part of the extended chest wall region, and (ii) enables rapid data acquisition in the frequency-domain by using a gain-modulated ICCD camera. Diagnostic 3-D fluorescence-enhanced optical tomography is demonstrated using 0.5-1 cc single and multiple targets contrasted from their surrounding by ??M concentrations of Indocyanine green (ICG) in the breast-shaped phantom (10 cm diameter), under varying conditions of target-to-background absorption contrast ratios (1:0 and 100:1) and target depths (up to 3 cm deep). Boundary surface fluorescence measurements of referenced amplitude and phase shift were used along with the coupled diffusion equation of light propagation in order to perform 3-D image reconstructions using the approximate extended Kalman filter (AEKF) algorithm, and hence differentiate the target from the background based on fluorescent optical contrast. Detection of single and multiple targets is demonstrated under various conditions of target depths (up to 2 cm deep), absorption optical contrast ratio (1:0 and 100:1), target volumes (0.5-1 cc), and multiple targets (up to three 0.5 cc targets). The feasibility of 3-D image reconstructions from simultaneous multiple point excitation sources are presented. Preliminary lifetime imaging studies with 1:2 and 2:1 optical contrast in fluorescence lifetime of the contrast agents is also demonstrated. The specificity of the optical imager is further assessed from homogeneous phantom studies containing no fluorescently contrasted targets. While nuclear imaging currently provides clinical diagnostic opportunities using radioactive tracers, molecular targeting of tumors using non-ionizing NIR contrast agents tomographically imaged using the frequency-domain ICCD imaging system could possibly become a new method of diagnostic imaging.

Godavarty, Anuradha

2003-12-01T23:59:59.000Z

77

Top quark physics  

Science Conference Proceedings (OSTI)

The top quark, when it was finally discovered at Fermilab in 1995 completed the three-generation structure of the Standard Model (SM) and opened up the new field of top quark physics. Viewed as just another SM quark, the top quark appears to be a rather uninteresting species. Produced predominantly, in hadron-hadron collisions, through strong interactions, it decays rapidly without forming hadrons, and almost exclusively through the single mode t {r_arrow} Wb. The relevant CKM coupling V{sub tb} is already determined by the (three-generation) unitarity of the CKM matrix. Rare decays and CP violation are unmeasurable small in the SM. Yet the top quark is distinguished by its large mass, about 35 times larger than the mass of the next heavy quark, and intriguingly close to the scale of electroweak (EW) symmetry breaking. This unique property raises a number of interesting questions. Is the top quark mass generated by the Higgs mechanism as the SM predicts and is its mass related to the top-Higgs-Yukawa coupling? Or does it play an even more fundamental role in the EW symmetry breaking mechanism? If there are new particles lighter than the top quark, does the top quark decay into them? Could non-SM physics first manifest itself in non-standard couplings of the top quark which show up as anomalies in top quark production and decays? Top quark physics tries to answer these questions. Several properties of the top quark have already been examined at the Tevatron. These include studies of the kinematical properties of top production, the measurements of the top mass, of the top production cross-section, the reconstruction of t{bar t}pairs in the fully hadronic final states, the study of {tau} decays of the top quark, the reconstruction of hadronic decays of the W boson from top decays, the search for flavor changing neutral current decays, the measurement of the W helicity in top decays, and bounds on t{bar t} spin correlations. Most of these measurements are limited by the small sample of top quarks collected at the Tevatron up to now. The LHC is, in comparison, a top factory, producing about 8 million t{bar t}pairs per experiment per year at low luminosity (10 fb{sup {minus}1}/year), and another few million (anti-)tops in EW single (anti-)top quark production. They therefore expect that top quark properties can be examined with significant precision at the LHC. Entirely new measurements can be contemplated on the basis of the large available statistics.

Ahmadov, A.; Azuelos, G.; Bauer, U.; Belyaev, A.; Berger, E. L.; Sullivan, Z.; Tait, T. M. P.

2000-03-24T23:59:59.000Z

78

Top Quark Activitiy Introduction  

NLE Websites -- All DOE Office Websites (Extended Search)

Usa la conservacin del momento lineal para calcular la masa del quark top a partir de datos de D Los datos del quark top al alcance de los estudiantes. Para profesores -...

79

Top Quark Activitiy Introduction  

NLE Websites -- All DOE Office Websites (Extended Search)

of Momentum to Calculate the Mass of the Top Quark from D-Zero Data Making top quark data accessible to students. Ed Home - Data Home - Teacher Page - Student Activity Page -...

80

X-ray Imaging Shows Feather Patterns of First Birds | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

X-ray Imaging Shows Feather Patterns of First Birds X-ray Imaging Shows Feather Patterns of First Birds X-ray Imaging Shows Feather Patterns of First Birds June 30, 2011 - 2:56pm Addthis A collage of images. Top, optical images of: blue jay feather, squid, and fossil fish with feather. Bottom: x-ray images showing the distribution of copper (red) in the same organisms. | Photo Courtesy of Gregory Stewart, SLAC National Accelerator Laboratory A collage of images. Top, optical images of: blue jay feather, squid, and fossil fish with feather. Bottom: x-ray images showing the distribution of copper (red) in the same organisms. | Photo Courtesy of Gregory Stewart, SLAC National Accelerator Laboratory Niketa Kumar Niketa Kumar Public Affairs Specialist, Office of Public Affairs What are the key facts? Through x-ray fluorescent imaging techniques developed at the

Note: This page contains sample records for the topic "top optical images" 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

First results from the MIT optical rapid imaging system (MORIS) on the IRTF: A stellar occultation by Pluto and a transit by exoplanet XO-2b  

E-Print Network (OSTI)

We present a high-speed, visible-wavelength imaging instrument: MORIS (the MIT Optical Rapid Imaging System). MORIS is mounted on the 3 m Infrared Telescope Facility (IRTF) on Mauna Kea, Hawaii. Its primary component is ...

Gulbis, Amanda A. S.

82

CDF Top Physics  

DOE R&D Accomplishments (OSTI)

The authors present the latest results about top physics obtained by the CDF experiment at the Fermilab Tevatron collider. The data sample used for these analysis (about 110 pb{sup{minus}1}) represents almost the entire statistics collected by CDF during four years (1992--95) of data taking. This large data size has allowed detailed studies of top production and decay properties. The results discussed here include the determination of the top quark mass, the measurement of the production cross section, the study of the kinematics of the top events and a look at top decays.

Tartarelli, G. F.; CDF Collaboration

1996-05-00T23:59:59.000Z

83

Optical alignment techniques for line-imaging velocity interferometry and line-imaging self-emission of targets at the National Ignition Facility (NIF)  

Science Conference Proceedings (OSTI)

The National Ignition Facility (NIF) requires optical diagnostics for measuring shock velocities in shock physics experiments. The nature of the NIF facility requires the alignment of complex three-dimensional optical systems of very long distances. Access to the alignment mechanisms can be limited, and any alignment system must be operator friendly. The Velocity Interferometer System for Any Reflector (VISAR) measures shock velocities, shock breakout times, and emission of 1- to 5-mm targets at a location remote to the NIF target chamber. Three optical systems using the same vacuum chamber port each have a total track of 21 m. All optical lenses are on kinematic mounts or sliding rails, enabling pointing accuracy of the optical axis to be checked. Counter-propagating laser beams (orange and red) align these diagnostics to a listing of tolerances. Movable aperture cards, placed before and after lens groups, show the spread of alignment spots created by the orange and red alignment lasers. Optical elements include 1-in. to 15-in. diameter mirrors, lenses with up to 10.5-in. diameters, beamsplitters, etalons, dove prisms, filters, and pellicles. Alignment of more than 75 optical elements must be verified before each target shot. Archived images from eight alignment cameras prove proper alignment before each shot.

Malone, Robert; Celeste, John; Celliers, Peter; Frogget, Brent; Robert Guyton,,; Kaufman, Morris; Lee, Tony; MacGowan, Brian; Ng, Edmend; Reinbachs, Imants; Robinson, Ronald; Tunnell, Thomas; Watts, Phillip

2007-08-01T23:59:59.000Z

84

Optical Alignment Techniques for Line-Imaging Velocity Interferometry and Line-Imaging Self-Emission of Targets at the National Ignition Facility (NIF)  

Science Conference Proceedings (OSTI)

The National Ignition Facility (NIF) requires optical diagnostics for measuring shock velocities in shock physics experiments. The nature of the NIF facility requires the alignment of complex three-dimensional optical systems of very long distances. Access to the alignment mechanisms can be limited, and any alignment system must be operator friendly. The Velocity Interferometer System for Any Reflector measures shock velocities, shock breakout times, and emission of 1- to 5-mm targets at a location remote to the NIF target chamber. Three optical systems using the same vacuum chamber port each have a total track of 21 meters. All optical lenses are on kinematic mounts or sliding rails, enabling pointing accuracy of the optical axis to be checked. Counter-propagating laser beams (orange and red) align these diagnostics to a listing of tolerances. Movable aperture cards, placed before and after lens groups, show the spread of alignment spots created by the orange and red alignment lasers. Optical elements include 1-in. to 15-in. diameter mirrors, lenses with up to 10.5-in. diameters, beamsplitters, etalons, dove prisms, filters, and pellicles. Alignment of more than 75 optical elements must be verified before each target shot. Archived images from eight alignment cameras prove proper alignment before each shot.

Malone, R M; Celeste, J R; Celliers, P M; Frogget, B .; Guyton, R L; Kaufman, M I; Lee, T L; MacGowan, B J; Ng, E W; Reinbachs, I P; Robinson, R B; Tunnell, T W; Watts, P W

2007-07-31T23:59:59.000Z

85

Top Physics at CDF  

Science Conference Proceedings (OSTI)

We present the recent results of top-quark physics using up to 6 fb{sup -1} of p{bar p} collisions at a center of mass energy of {radical}s = 1.96 TeV analyzed by the CDF collaboration. Thanks to this large data sample, precision top quark measurements are now a reality at the Tevatron. Further, several new physics signals could appear in this large dataset. We will present the latest measurements of top quark intrinsic properties as well as direct searches for new physics in the top sector.

Moon, Chang-Seong

2011-06-01T23:59:59.000Z

86

The Top Quark's Discovery  

NLE Websites -- All DOE Office Websites (Extended Search)

Im Mrz 1995, teilte Fermilab die Entdeckung des top Quark - des letzten der sechs vorhergesagten Quarks - mit. Die Suche begann im Jahre 1977, zusammen mit der erfolgreichen...

87

High-Resolution Imaging and Optical Control of Bose-Einstein Condensates in an Atom Chip Magnetic Trap  

E-Print Network (OSTI)

A high-resolution projection and imaging system for ultracold atoms is implemented using a compound silicon and glass atom chip. The atom chip is metalized to enable magnetic trapping while glass regions enable high numerical aperture optical access to atoms residing in the magnetic trap about 100 microns below the chip surface. The atom chip serves as a wall of the vacuum system, which enables the use of commercial microscope components for projection and imaging. Holographically generated light patterns are used to optically slice a cigar-shaped magnetic trap into separate regions; this has been used to simultaneously generate up to four Bose-condensates. Using fluorescence techniques we have demonstrated in-trap imaging resolution down to 2.5 microns

Evan A. Salim; Seth C. Caliga; Jonathan B. Pfeiffer; Dana Z. Anderson

2012-08-24T23:59:59.000Z

88

Accurate top of the atmosphere albedo determination from multiple views of the Multi-angle Imaging Spectro-Radiometer (MISR) instrument  

SciTech Connect

Changes in the Earth`s surface albedo impact the atmospheric and global energy budget and contribute to the global climate change. It is now recognized that multispectral and multiangular views of the Earth`s top of the atmosphere (TOA) albedo are necessary to provide information on albedo changes. In this paper we describe four semi- empirical bidirectional reflectance factor (BRF) models which are inverted for two and three unknowns. The retrieved BRF parameters are then used to compute the TOA spectral albedo for clear sky conditions. Using this approach we find that the albedo can be computed with better than one percent error in the visible and one and a half percent in the near infrared (NIR) for most surface types. Global monitoring of the earth radiation budget is one of the main goals in global change research programs. Thus global measurements of the TOA albedo are important. Our goals is to compute the TOA spectral albedo for clear sky conditions.

Borel, C.C.; Gerstl, S.A.W. [Los Alamos National Lab., NM (United States); Tornow, C. [German Aerospace Research Establishment, Berlin (Germany)

1996-05-01T23:59:59.000Z

89

Optical Nanomaterials for Photonics/Biophotonics  

Science Conference Proceedings (OSTI)

Applications of optical nanoparticles in telecommunications, photodetectors, LED , etc. - Fluorescent Imaging using optical nanolabels (including multiphoton ...

90

Top Quark Properties  

Science Conference Proceedings (OSTI)

Since its discovery in 1995 by the CDF and D0 collaborations at the Fermilab Tevatron collider, the top quark has undergone intensive studies. Besides the Tevatron experiments, with the start of the LHC in 2010 a top quark factory started its operation. It is now possible to measure top quark properties simultaneously at four different experiments, namely ATLAS and CMS at LHC and CDF and D0 at Tevatron. Having collected thousands of top quarks each, several top quark properties have been measured precisely, while others are being measured for the first time. In this article, recent measurements of top quark properties from ATLAS, CDF, CMS and D0 are presented, using up to 5.4 fb{sup -1} of integrated luminosity at the Tevatron and 1.1 fb{sup -1} at the LHC. In particular, measurements of the top quark mass, mass difference, foward backward charge asymmetry, t{bar t} spin correlations, the ratio of branching fractions, W helicity, anomalous couplings, color flow and the search for flavor changing neutral currents are discussed.

Peters, Yvonne

2011-12-01T23:59:59.000Z

91

Optical systems for synchrotron radiation: lecture 4. Soft x-ray imaging systems  

Science Conference Proceedings (OSTI)

The history and present techniques of soft x-ray imaging are reviewed briefly. The physics of x-ray imaging is described, including the temporal and spatial coherence of x-ray sources. Particular technologies described are: contact x-ray microscopy, zone plate imaging, scanned image zone plate microscopy, scanned image reflection microscopy, and soft x-ray holography and diffraction. (LEW)

Howells, M.R.

1986-04-01T23:59:59.000Z

92

Press Pass - Press Release - Single top quark  

NLE Websites -- All DOE Office Websites (Extended Search)

9-04 9-04 March 9, 2009 For immediate release Media Contacts: Judy Jackson, Fermilab, +1-630-840-3351, jjackson@fnal.gov Kurt Riesselmann, Fermilab, +1-630-840-3351, kurtr@fnal.gov Graphics and photos are available at: http://www.fnal.gov/pub/presspass/images/Single-Top-Quark-2009.html Fermilab collider experiments discover rare single top quark Batavia, Ill.-Scientists of the CDF and DZero collaborations at the Department of Energy's Fermi National Accelerator Laboratory have observed particle collisions that produce single top quarks. The discovery of the single top confirms important parameters of particle physics, including the total number of quarks, and has significance for the ongoing search for the Higgs particle at Fermilab's Tevatron, currently the world's most powerful operating particle accelerator.

93

The Top Quark's Discovery  

NLE Websites -- All DOE Office Websites (Extended Search)

1995, Fermilab announced the discovery of the top quark, the last of the six predicted quarks. The search began in 1977 when physicists found the fifth quark, bottom, at Fermilab....

94

Top quark physics: Overview  

SciTech Connect

In this presentation I will primarily focus on top quark physics but I will include a discussion of the W-boson mass and the possibility of discovering a light Higgs boson via associated production at the Tevatron.

Parke, S.

1998-01-01T23:59:59.000Z

95

Top Physics Review and Outlook  

E-Print Network (OSTI)

I review the status of the top quark, and look forward to three topics relevant to future top-quark physics; spin correlation, single-top-quark production, and unification.

S. Willenbrock

1996-08-22T23:59:59.000Z

96

Optical keyboard  

DOE Patents (OSTI)

An optical keyboard includes an optical panel having optical waveguides stacked together. First ends of the waveguides define an inlet face, and opposite ends thereof define a screen. A projector transmits a light beam outbound through the waveguides for display on the screen as a keyboard image. A light sensor is optically aligned with the inlet face for sensing an inbound light beam channeled through the waveguides from the screen upon covering one key of the keyboard image.

Veligdan, James T. (Manorville, NY); Feichtner, John D. (Fiddletown, CA); Phillips, Thomas E. (San Diego, CA)

2001-01-01T23:59:59.000Z

97

Top Ten Lists  

NLE Websites -- All DOE Office Websites (Extended Search)

Fueleconomy Top Ten Fueleconomy Top Ten EPA Rated - 2014 EPA Rated - All Years Shared Estimates - All Years Misconceptions Fueleconomy.gov's Top Ten EPA-Rated Fuel Sippers (2014) Include all-electric and plug-in hybrid vehicles? Yes No Vehicles are ranked by their combined rating (weighted by 55% city and 45% highway). In the event of a tie, multiple vehicles may share the same ranking. Electric vehicles are measured in Miles Per Gallon equivalent (MPGe) where 33.7 kW-hrs = 1 gallon of gasoline. 1. 2014 Chevrolet Spark EV 2014 Chevrolet Spark EV Combined 119 City 128/Highway 109 All-electric, Auto (A1) 2. 2014 Honda Fit EV 2014 Honda Fit EV Combined 118 City 132/Highway 105 All-electric, Auto (A1) 3. 2014 Fiat 500e 2014 Fiat 500e Combined 116 City 122/Highway 108 All-electric, Auto (A1)

98

Triggering Top Quark Events  

E-Print Network (OSTI)

Collisions at the LHC occur at a rate of up to 40 MHz, much larger than the 200 Hz storage capacity of the ATLAS experiment. The ATLAS trigger system has the challenging task of rejecting 99.9995 % of the events produced in collisions, while keeping those needed to achieve the physics goals of the experiment. This note evaluates the expected performance of the trigger system in top quark events by investigating the response of the trigger system to single objects such as a muon, an electron or a jet originating from top quark decays. In addition, the methodology needed to efficiently select top quark events in the online trigger system is discussed including methods to determine trigger efficiencies from data.

The ATLAS collaboration

2009-01-01T23:59:59.000Z

99

Characterizing LED with Time-Resolved Photo-Luminescence and Optical Beam Induced Current Imaging.  

E-Print Network (OSTI)

??With rapid development of light emitting device, the detection techniques of semiconductor are more and more important, which include time-resolved photoluminescence (TRPL) and optical beam… (more)

Wu, Shang-jie

2011-01-01T23:59:59.000Z

100

Neutron Imaging Explored as Complementary Technique for Improving Cancer  

NLE Websites -- All DOE Office Websites (Extended Search)

Neutron Imaging Explored as Complementary Technique for Improving Cancer Neutron Imaging Explored as Complementary Technique for Improving Cancer Detection August 05, 2013 Researcher Maria Cekanova analyzes the neutron radiographs of a canine breast tumor (black color in top image of monitor screen) using the software to visualize in color the various intensities of neutron transmissions through the breast tissue. ORNL and University of Tennessee collaboration now analyzing first results from neutron radiographs of cancerous tissue samples Today's range of techniques for detection of breast and other cancers include mammography, computed tomography (CT), magnetic resonance imaging (MRI), ultrasound, positron emission tomography (PET), and optical imaging. Each technology has advantages and disadvantages, with limitations either

Note: This page contains sample records for the topic "top optical images" 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

Active probing of cloud multiple scattering, optical depth, vertical thickness, and liquid water content using wide-angle imaging LIDAR.  

SciTech Connect

At most optical wavelengths, laser light in a cloud lidar experiment is not absorbed but merely scattered out of the beam, eventually escaping the cloud via multiple scattering. There is much information available in this light scattered far from the input beam, information ignored by traditional 'on-beam' lidar. Monitoring these off-beam returns in a fully space- and time-resolved manner is the essence of our unique instrument, Wide Angle Imaging Lidar (WAIL). In effect, WAIL produces wide-field (60-degree full-angle) 'movies' of the scattering process and records the cloud's radiative Green functions. A direct data product of WAIL is the distribution of photon path lengths resulting from multiple scattering in the cloud. Following insights from diffusion theory, we can use the measured Green functions to infer the physical thickness and optical depth of the cloud layer, and, from there, estimate the volume-averaged liquid water content. WAIL is notable in that it is applicable to optically thick clouds, a regime in which traditional lidar is reduced to ceilometry. Here we present recent WAIL data oti various clouds and discuss the extension of WAIL to full diurnal monitoring by means of an ultra-narrow magneto-optic atomic line filter for daytime measurements.

Love, Steven P.; Davis, A. B. (Anthony B.); Rohde, C. A. (Charles A.); Tellier, L. L. (Larry L.); Ho, Cheng,

2002-01-01T23:59:59.000Z

102

MODIS Cloud-Top Property Refinements for Collection 6  

Science Conference Proceedings (OSTI)

This paper summarizes the Collection-6 refinements in the Moderate Resolution Imaging Spectroradiometer (MODIS) operational cloud-top properties algorithm. The focus is on calibration improvements and on cloud macrophysical properties including ...

Bryan A. Baum; W. Paul Menzel; Richard A. Frey; David C. Tobin; Robert E. Holz; Steve A. Ackerman; Andrew K. Heidinger; Ping Yang

2012-06-01T23:59:59.000Z

103

WIPP Receives Top Safety Award  

NLE Websites -- All DOE Office Websites (Extended Search)

WIPP Receives Top Safety Award CARLSBAD, N.M., November 10, 2011 - The U.S. Department of Energy's (DOE) Waste Isolation Pilot Plant (WIPP) received top accolades from New...

104

Pulmonary toxicity and kinetic study of Cy5.5-conjugated superparamagnetic iron oxide nanoparticles by optical imaging  

Science Conference Proceedings (OSTI)

Recent advances in the development of nanotechnology and devices now make it possible to accurately deliver drugs or genes to the lung. Magnetic nanoparticles can be used as contrast agents, thermal therapy for cancer, and be made to concentrate to target sites through an external magnetic field. However, these advantages may also become problematic when taking into account safety and toxicological factors. This study demonstrated the pulmonary toxicity and kinetic profile of anti-biofouling polymer coated, Cy5.5-conjugated thermally cross-linked superparamagnetic iron oxide nanoparticles (TCL-SPION) by optical imaging. Negatively charged, 36 nm-sized, Cy5.5-conjugated TCL-SPION was prepared for optical imaging probe. Cy5.5-conjugated TCL-SPION was intratracheally instilled into the lung by a non-surgical method. Cy5.5-conjugated TCL-SPION slightly induced pulmonary inflammation. The instilled nanoparticles were distributed mainly in the lung and excreted in the urine via glomerular filtration. Urinary excretion was peaked at 3 h after instillation. No toxicity was found under the concentration of 1.8 mg/kg and the half-lives of nanoparticles in the lung and urine were estimated to be about 14.4 {+-} 0.54 h and 24.7 {+-} 1.02 h, respectively. Although further studies are required, our results showed that Cy5.5-conjugated TCL-SPION can be a good candidate for use in pulmonary delivery vehicles and diagnostic probes.

Cho, Wan-Seob [Division of Toxicologic Pathology, Department of Toxicological Research, National Institute of Toxicological Research, Korea Food and Drug Administration, 231 Jinhoungno Eunpyung-ku, Seoul 122-704 (Korea, Republic of); Respiratory Medicine Unit, ELEGI/Colt Laboratory, Centre for Inflammation Research, The Queen's Medical Research Institute, University of Edinburgh, 47 Little France Crescent, Edinburgh, EH16 4TJ (United Kingdom)], E-mail: wcho@staffmail.ed.ac.uk; Cho, Minjung; Kim, Seoung Ryul; Choi, Mina; Lee, Jeong Yeon; Han, Beom Seok [Division of Toxicologic Pathology, Department of Toxicological Research, National Institute of Toxicological Research, Korea Food and Drug Administration, 231 Jinhoungno Eunpyung-ku, Seoul 122-704 (Korea, Republic of); Park, Sue Nie [Division of Genetic Toxicology, Department of Toxicological Research, National Institute of Toxicological Research, Korea Food and Drug Administration, 231 Jinhoungno Eunpyung-ku, Seoul 122-704 (Korea, Republic of); Yu, Mi Kyung; Jon, Sangyong [Research Center for Biomolecular Nanotechnology, Department of Life Science, Gwangju Institute of Science and Technology (GIST), 1 Oryong-dong, Buk-gu, Gwangju 500-712 (Korea, Republic of); Jeong, Jayoung [Division of Toxicologic Pathology, Department of Toxicological Research, National Institute of Toxicological Research, Korea Food and Drug Administration, 231 Jinhoungno Eunpyung-ku, Seoul 122-704 (Korea, Republic of)

2009-08-15T23:59:59.000Z

105

Exploration of the MODIS Cloud-Top Property Products for the Investigation of Equatorial Wave Systems  

Science Conference Proceedings (OSTI)

The Moderate Resolution Imaging Spectroradiometer (MODIS) observations provide an unprecedented opportunity for studying cloud macrophysical (cloud-top pressure, temperature, height, and phase), microphysical (effective particle size), and ...

Yue Li; Gerald R. North; Ping Yang; Bryan A. Baum

2010-09-01T23:59:59.000Z

106

Top Physics at the LHC  

E-Print Network (OSTI)

Top quark physics will be a prominent topic in Standard Model physics at the LHC. The enormous amount of top quarks expected to be produced will allow to perform a wide range of precision measurements. An overview of the planned top physics programme of the ATLAS and CMS experiments at the LHC is given.

Christian Weiser

2005-06-10T23:59:59.000Z

107

Top physics results at CDF  

SciTech Connect

The most recent results on top quark physics at CDF are reported. Measurements of cross-section and mass are presented, and the status of single top quark production searches are discussed. The results obtained from probing various top quark properties are also presented.

Vickey, Trevor; /Illinois U., Urbana

2005-05-01T23:59:59.000Z

108

Direct observation of the current distribution in thin superconducting strips using magneto-optic imaging  

E-Print Network (OSTI)

study of the flux and current distribution of a long thin strip of YBa2Cu3O7 placed in a perpendicular to the magneto-optically found field map we find on a model-independent basis the current distribution across critical field is negli- gible, they obtained explicit expressions for the field and current distributions

Johansen, Tom Henning

109

The search for the top quark  

SciTech Connect

This paper discusses the following topics: top search in the near future, general remarks, top search at HERA, searching for the top quarks at the Z/sup 0/ machines, finding the top at Lep II, top search in UA2, top search in UA1, and top search at CDF. 58 refs., 38 figs.

Barbaro-Galtieri, A.

1989-03-01T23:59:59.000Z

110

Top quark physics at CDF  

SciTech Connect

We present the recent results of top-quark physics using up to 6 fb{sup -1} of p{bar p} collisions analyzed by the CDF collaboration. The large number of top quark events analyzed, of the order of several thousands, allows stringent checks of the standard model predictions. Also, the top quark is widely believed to be a window to new physics. We present the latest measurements of top quark intrinsic properties as well as direct searches for new physics in the top sector.

Potamianos, Karolos

2011-12-01T23:59:59.000Z

111

Supercomputing Challenge top winners: Los Alamos schools  

NLE Websites -- All DOE Office Websites (Extended Search)

Supercomputing Challenge top winners: Los Alamos schools Supercomputing Challenge top winners: Los Alamos schools Cole Kendrick won the top prize for his research project,...

112

On-Board Imaging Validation of Optically Guided Stereotactic Radiosurgery Positioning System for Conventionally Fractionated Radiotherapy for Paranasal Sinus and Skull Base Cancer  

Science Conference Proceedings (OSTI)

Purpose: To evaluate the positioning accuracy of an optical positioning system for stereotactic radiosurgery in a pilot experience of optically guided, conventionally fractionated, radiotherapy for paranasal sinus and skull base tumors. Methods and Materials: Before each daily radiotherapy session, the positioning of 28 patients was set up using an optical positioning system. After this initial setup, the patients underwent standard on-board imaging that included daily orthogonal kilovoltage images and weekly cone beam computed tomography scans. Daily translational shifts were made after comparing the on-board images with the treatment planning computed tomography scans. These daily translational shifts represented the daily positional error in the optical tracking system and were recorded during the treatment course. For 13 patients treated with smaller fields, a three-degree of freedom (3DOF) head positioner was used for more accurate setup. Results: The mean positional error for the optically guided system in patients with and without the 3DOF head positioner was 1.4 {+-} 1.1 mm and 3.9 {+-} 1.6 mm, respectively (p <.0001). The mean positional error drifted 0.11 mm/wk upward during the treatment course for patients using the 3DOF head positioner (p = .057). No positional drift was observed in the patients without the 3DOF head positioner. Conclusion: Our initial clinical experience with optically guided head-and-neck fractionated radiotherapy was promising and demonstrated clinical feasibility. The optically guided setup was especially useful when used in conjunction with the 3DOF head positioner and when it was recalibrated to the shifts using the weekly portal images.

Maxim, Peter G.; Loo, Billy W.; Murphy, James D.; Chu, Karen P.M.; Hsu, Annie [Department of Radiation Oncology, Stanford University School of Medicine, Stanford, CA (United States); Le, Quynh-Thu, E-mail: Qle@stanford.edu [Department of Radiation Oncology, Stanford University School of Medicine, Stanford, CA (United States)

2011-11-15T23:59:59.000Z

113

OPTICAL DESIGN AND PERFORMANCE OF THE ODIN UV/VISIBLE SPECTROGRAPH AND INFRARED IMAGER INSTRUMENT  

E-Print Network (OSTI)

by mercury and sodium street lights. Radiometric calibration is not provided internally. V. Details of IR excellent spectral imaging performance and stray-light rejection. This paper first briefly describes will provide important contributions to stratospheric ozone research. The scientific analysis

Saskatchewan, University of

114

Pulse-dilation enhanced gated optical imager with 5 ps resolution (invited)  

Science Conference Proceedings (OSTI)

A 5 ps gated framing camera was demonstrated using the pulse-dilation of a drifting electron signal. The pulse-dilation is achieved by accelerating a photoelectron derived information pulse with a time varying potential [R. D. Prosser, J. Phys. E 9, 57 (1976)]. The temporal dependence of the accelerating potential causes a birth time dependent axial velocity dispersion that spreads the pulse as it transits a drift region. The expanded pulse is then imaged with a conventional gated microchannel plate based framing camera and the effective gating time of the combined instrument is reduced over that of the framing camera alone. In the drift region, electron image defocusing in the transverse or image plane is prevented with a large axial magnetic field. Details of the unique issues associated with rf excited photocathodes were investigated numerically and a prototype instrument based on this principle was recently constructed. Temporal resolution of the instrument was measured with a frequency tripled femtosecond laser operating at 266 nm. The system demonstrated 20x temporal magnification and the results are presented here. X-ray image formation strategies and photometric calculations for inertial confinement fusion implosion experiments are also examined.

Hilsabeck, T. J.; Kilkenny, J. D. [General Atomics, P.O. Box 85608, San Diego, California 92186-5608 (United States); Hares, J. D.; Dymoke-Bradshaw, A. K. L. [Kentech Instruments Ltd., Wallingford, Oxfordshire OX10 (United Kingdom); Bell, P. M.; Koch, J. A.; Celliers, P. M.; Bradley, D. K.; McCarville, T.; Pivovaroff, M.; Soufli, R.; Bionta, R. [Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)

2010-10-15T23:59:59.000Z

115

Top Physics Results from CDF  

E-Print Network (OSTI)

The top quark is by far the most massive fundamental particle observed so far, and the study of its properties is interesting for several reasons ranging from its possible special role in electroweak symmetry breaking to its sensitivity to physics beyond the Standard Model. We present recent top physics results from CDF based on 160-320 inverse pb of ppbar collision data at a center-of-mass energy of 1.96 TeV. The ttbar cross section and the top mass have been measured in different decay channels and using different methods. We have searched for evidence of single top production, setting upper limits on its production rate. Other results shown in this conference include studies of the polarization of W bosons from top decays, a search for charged Higgs decaying from top, and a search for additional heavy t' quarks.

Gervasio Gomez

2005-05-30T23:59:59.000Z

116

Imaging the internal structure of the rat cochlea using optical coherence tomography at 0.827 m and 1.3 m  

E-Print Network (OSTI)

. This study used 2 OCT systems with different light sources: 1) a semiconductor optical amplifier operating in integration of the backscattered light signal over long time intervals. In contrast, the present system used of using fast fiberoptic-based OCT imaging systems for determining cochlea microanatomy with resolu- tion

Chen, Zhongping

117

GRAVITY: The adaptive optics assisted, two object beam combiner for the VLTI  

E-Print Network (OSTI)

We present the adaptive optics assisted, near-infrared VLTI instrument - GRAVITY - for precision narrow-angle astrometry and interferometric phase referenced imaging of faint objects. Precision astrometry and phase-referenced interferometric imaging will realize the most advanced vision of optical/infrared interferometry with the VLT. Our most ambitious science goal is to study motions within a few times the event horizon size of the Galactic Center massive black hole and to test General Relativity in its strong field limit. We define the science reference cases for GRAVITY and derive the top level requirements for GRAVITY. The installation of the instrument at the VLTI is planned for 2012.

S. Gillessen; G. Perrin; W. Brandner; C. Straubmeier; F. Eisenhauer; S. Rabien; A. Eckart; P. Lena; R. Genzel; T. Paumard; S. Hippler

2006-07-17T23:59:59.000Z

118

Optical Images of an Exosolar Planet 25 Light Years from Earth  

SciTech Connect

Fomalhaut is a bright star 7.7 parsec (25 light years) from Earth that harbors a belt of cold dust with a structure consistent with gravitational sculpting by an orbiting planet. Here, we present optical observations of an exoplanet candidate, Fomalhaut b. In the plane of the belt, Fomalhaut b lies approximately 119 astronomical units (AU) from the star, and within 18 AU of the dust belt. We detect counterclockwise orbital motion using Hubble Space Telescope observations separated by 1.73 years. Dynamical models of the interaction between the planet and the belt indicate that the planet's mass is at most three times that of Jupiter for the belt to avoid gravitational disruption. The flux detected at 0.8 {micro}m is also consistent with that of a planet with mass no greater than a few times that of Jupiter. The brightness at 0.6 {micro}m and the lack of detection at longer wavelengths suggest that the detected flux may include starlight reflected off a circumplanetary disk, with dimension comparable to the orbits of the Galilean satellites. We also observed variability of unknown origin at 0.6 {micro}m.

Kalas, P; Graham, J R; Chiang, E; Fitzgerald, M P; Clampin, M; Kite, E S; Stapelfeldt, K; Krist, J

2008-11-12T23:59:59.000Z

119

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... Magneto-optical image of magnetic fields within a YBCO superconductor showing electrically ... PHY, High-Temp Superconductors See also http ...

120

Radiative Effects of Airborne Dust on Regional Energy Budgets at the Top of the Atmosphere  

Science Conference Proceedings (OSTI)

The effects of dust on the radiative energy budget at the top of the atmosphere were investigated using model calculations and measurements from the Earth Radiation Budget Experiment (ERBE). Estimates of the dust optical depth were made from ...

Steven A. Ackerman; Hyosang Chung

1992-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "top optical images" 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

Electro-optic transient imaging instrumentation development at Lawrence Livermore National Laboratory: Implications for SSC instrumentation development  

Science Conference Proceedings (OSTI)

Over the last decade, the underground weapons physics laboratories fielded by LLNL's Nuclear Test and Experimental Sciences (NTES) program have experienced marked change. This change is characterized by a phenomenal growth in the amount of data returned per event. These techniques have been developed as a result of the severe demands placed upon transient instrumentation by the physics requirements of our underground nuclear laboratories. The detector front-ends must quickly detect, process and transmit a large volume of data to recording stations located approximately 1 km from the event. In a recent event, the detector front-ends successfully handled data at a prompt rate of approximately 13 Terabits/sec. Largely, this advance can be attributed directly to the increased use of electro-optic techniques. These highly-parallel high-bandwidth imaging instrumentation systems developed for the test program may have a lot to offer the high-energy physics community tackling the challenge of the unprecedented luminosity and fidelity demands at the SSC. In what follows, we discuss details of a few of our prompt instrumentation techniques and compare these capabilities to the detector requirements for the challenging physics at the SSC. 5 refs., 3 figs.

Lowry, M.; Jacoby, B.; Schulte, H.

1990-12-01T23:59:59.000Z

122

DTIRC based optical collimators  

Science Conference Proceedings (OSTI)

Non-imaging optical concentrators have been used in the past to increase the power density of incoming radiation in applications such as photovoltaic (PV) solar and optical wireless communications. This paper explores the use of Dielectric Totally Internally ... Keywords: DTIRC, collimator, concentrator, non-imaging, optical

Roberto Ramirez-Iniguez; Ali Ahmadinia; Hernando Fernandez-Canque

2011-09-01T23:59:59.000Z

123

Dynamics of nano tippe top  

E-Print Network (OSTI)

We investigate the motion of a nano tippe top, which is formed from a C60 fullerene, and which is assumed to be spinning on either a graphene sheet or the interior of a single-walled carbon nanotube. We assume no specific geometric configuration for the top, however for example, the nano tippe top might be formed by joining a fullerene C60 with a small segment of a smaller radius carbon nanotube. We assume that it is spinning on a graphene sheet or a carbon nanotube surface only as a means of positioning and isolating the device, and the only effect of the graphene or the carbon nanotube surface is only through the frictional effect generated at the point of the contact. We employ the same basic physical ideas originating from the classical tippe top and find that the total retarding force, which comprises both a frictional force and a magnetic force at the contact point between the C60 fullerene and the graphene sheet or the inner surface of the single-walled carbon nanotube, induces the C60 molecule to spin and precess from a standing up position to a lying down position. Unlike the classical tippe top, the nanoscale tippe top does not flip over since the gravitational effect is not sufficient at the nano scale. After the precession, while the molecular top spins about its lying down axis, if we apply the opposite retarding magnetic force at the contact point, then the molecule will return to its standing up position. The standing up and the lying down configurations of the nano tippe top during the precession and retraction processes demonstrate its potential use as a memory device in nano-computing. 1

Yue Chan; Ngamta Thamwattana; James M. Hill

2009-01-01T23:59:59.000Z

124

Uncovering the single top: observation of electroweak top quark production  

Science Conference Proceedings (OSTI)

The top quark is generally produced in quark and anti-quark pairs. However, the Standard Model also predicts the production of only one top quark which is mediated by the electroweak interaction, known as 'Single Top'. Single Top quark production is important because it provides a unique and direct way to measure the CKM matrix element V{sub tb}, and can be used to explore physics possibilities beyond the Standard Model predictions. This dissertation presents the results of the observation of Single Top using 2.3 fb{sup -1} of Data collected with the D0 detector at the Fermilab Tevatron collider. The analysis includes the Single Top muon+jets and electron+jets final states and employs Boosted Decision Tress as a method to separate the signal from the background. The resulting Single Top cross section measurement is: (1) {sigma}(p{bar p} {yields} tb + X, tqb + X) = 3.74{sub -0.74}{sup +0.95} pb, where the errors include both statistical and systematic uncertainties. The probability to measure a cross section at this value or higher in the absence of signal is p = 1.9 x 10{sup -6}. This corresponds to a standard deviation Gaussian equivalence of 4.6. When combining this result with two other analysis methods, the resulting cross section measurement is: (2) {sigma}(p{bar p} {yields} tb + X, tqb + X) = 3.94 {+-} 0.88 pb, and the corresponding measurement significance is 5.0 standard deviations.

Benitez, Jorge Armando; /Michigan State U.

2009-08-01T23:59:59.000Z

125

MTS Table Top Load frame  

NLE Websites -- All DOE Office Websites (Extended Search)

MTS Table Top Load frame MTS Table Top Load frame The Non-destructive Evaluation group operates an MTS Table Top Load frame for ultimate strength and life cycle testing of various ceramic, ceramic-matrix (FGI), carbon, carbon fiber, cermet (CMC) and metal alloy engineering samples. The load frame is a servo-hydraulic type designed to function in a closed loop configuration under computer control. The system can perform non-cyclic, tension, compression and flexure testing and cyclic fatigue tests. The system is comprised of two parts: * The Load Frame and * The Control System. Load Frame The Load Frame (figure 1) is a cross-head assembly which includes a single moving grip, a stationary grip and LVDT position sensor. It can generate up to 25 kN (5.5 kip) of force in the sample under test and can

126

SRNL Microspheres Win Top Honors  

NLE Websites -- All DOE Office Websites (Extended Search)

Microspheres Microspheres Win Top Honors AIKEN, S.C. (July 16, 2012) - Savannah River National Laboratory (SRNL) captured top honors at a symposium spotlighting some of the most innovative research being conducted by the researchers supporting the U.S. Department of Energy's National Nuclear Security Administration (NNSA) . Dr. George Wicks of SRNL was presented the top "Award of Excellence" for the poster presen- tation on SRNL's porous-walled hollow glass microspheres at the NNSA Laboratory Directed Research and Development (LDRD) Symposium on Discovery and Innovation for National Security. The poster described how development of the microspheres began with funding from the Savannah River Site Plant-Directed Research and Development (PDRD) program, which funds

127

Los Alamos National Laboratory top  

NLE Websites -- All DOE Office Websites (Extended Search)

top top science news of 2012 December 20, 2012 Scientific advances that caught the world's interest LOS ALAMOS, NEW MEXICO, December 20, 2012-In 2012 Los Alamos National Laboratory made its scientific mark in a wide variety of areas, and the stories that caught the public's attention and that of the science community reflect those broad capabilities. Top science stories for the year traveled from the canyons of Mars to the high desert forests of New Mexico, from cosmic particles to the structure of proteins and enzymes. Computer models of wildfires, and nuclear magnetic resonance signatures of plutonium, it all was fascinating for those following Los Alamos' science news. - 2 - Mars Science Laboratory Curiosity rover and ChemCam 2:12 ChemCam rock laser for the Mars Science Laboratory

128

Charge asymmetry of top quarks  

E-Print Network (OSTI)

The LHC is a promising machine to discover new physics in the top sector. There are several models that predict the existence of heavy colored resonances decaying to top quarks in the TeV energy range. The production of such resonances might generate a sizable charge asymmetry of top versus antitop quarks. At the Tevatron, a 2 sigma discrepancy with the SM prediction for the forward--backward asymmetry has been found, boosting a renewed interest for this kind of models. We consider a toy model with general flavour dependent couplings of the resonance to quarks, of both vector and axial-vector kind and investigate the possible constraints on the coupling space from the measurement of the asymmetry and the invariant mass distribution at the Tevatron. Then, we define a central asymmetry in a specific kinematic region and investigate its signature at the LHC as well as its statistical significance, for exclusive processes.

Ferrario, Paola

2010-01-01T23:59:59.000Z

129

Charge asymmetry of top quarks  

E-Print Network (OSTI)

The LHC is a promising machine to discover new physics in the top sector. There are several models that predict the existence of heavy colored resonances decaying to top quarks in the TeV energy range. The production of such resonances might generate a sizable charge asymmetry of top versus antitop quarks. At the Tevatron, a 2 sigma discrepancy with the SM prediction for the forward--backward asymmetry has been found, boosting a renewed interest for this kind of models. We consider a toy model with general flavour dependent couplings of the resonance to quarks, of both vector and axial-vector kind and investigate the possible constraints on the coupling space from the measurement of the asymmetry and the invariant mass distribution at the Tevatron. Then, we define a central asymmetry in a specific kinematic region and investigate its signature at the LHC as well as its statistical significance, for exclusive processes.

Paola Ferrario; German Rodrigo

2010-06-29T23:59:59.000Z

130

Gregorian optical system with non-linear optical technology for protection against intense optical transients  

SciTech Connect

An optical system comprising a concave primary mirror reflects light through an intermediate focus to a secondary mirror. The secondary mirror re-focuses the image to a final image plane. Optical limiter material is placed near the intermediate focus to optically limit the intensity of light so that downstream components of the optical system are protected from intense optical transients. Additional lenses before and/or after the intermediate focus correct optical aberrations.

Ackermann, Mark R. (Albuquerque, NM); Diels, Jean-Claude M. (Albuquerque, NM)

2007-06-26T23:59:59.000Z

131

Top 10 Energy Efficiency Opportunities  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Top 10 Energy Efficiency Top 10 Energy Efficiency Opportunities Federal Utility Partnership Working Group San Francisco, 5/22/2013 Siva Sethuraman Customer Energy Solutions PG&E 2 Whole Building A comprehensive, performance-based approach to achieving 15+% energy savings in existing commercial buildings - quantification of energy use baselines and estimate savings at the whole building level leveraging the power of interval meter data. Behavioral Operational Retrofit Types of Energy Savings * Simplified, integrated offering * Bigger incentives tied to performance * Flexibility to pursue a range of measures overtime * Transparent and credible bill savings Baseline Analytics, Examples 3 Small Commercial EMS * Energy management system (EMS) products that offer integrated

132

Top Quark Spin Correlations - Theory  

Science Conference Proceedings (OSTI)

The top quark decay width (G{sub F}m{sub t}{sup 3} {approx} 1 GeV) is much larger than the QCD hadronization scale ({Lambda}{sub QCD} {approx} 0.1 GeV) and much larger than the spin decorrelation scale ({Lambda}{sub QCD}{sup 2}/m{sub t} {approx} 0.1 MeV). Therefore, spin correlations in top quark pair production are reflected in angular correlations of the decay products, see [1] and [2].

Parke, Stephen J.; /Fermilab

2012-02-01T23:59:59.000Z

133

Processing top k queries from samples  

Science Conference Proceedings (OSTI)

Top-k queries are desired aggregation operations on data sets. Examples of queries on network data include the top 100 source AS's, top 100 ports, or top Domain names over IP packets or over IP flow records. Since the complete dataset is often ...

Edith Cohen; Nadav Grossaug; Haim Kaplan

2006-12-01T23:59:59.000Z

134

Imaging  

NLE Websites -- All DOE Office Websites (Extended Search)

Imaging Print Imaging Print The wavelengths of soft x-ray photons (1-15 nm) are very well matched to the creation of "nanoscopes" capable of probing the interior structure of biological cells and inorganic mesoscopic systems.Topics addressed by soft x-ray imaging techniques include cell biology, nanomagnetism, environmental science, and polymers. The tunability of synchrotron radiation is absolutely essential for the creation of contrast mechanisms. Cell biology CAT scans are performed in the "water window" (300-500 eV). Nanomagnetism studies require the energy range characteristic of iron, cobalt, and nickel (600-900 eV). Mid- and far-infrared (energies below 1 eV) microprobes using synchrotron radiation are being used to address problems such as chemistry in biological tissues, chemical identification and molecular conformation, environmental biodegradation, mineral phases in geological and astronomical specimens, and electronic properties of novel materials. Infrared synchrotron radiation is focused through, or reflected from, a small spot on the specimen and then analyzed using a spectrometer. Tuning to characteristic vibrational frequencies serves as a sensitive fingerprint for molecular species. Images of the various species are built up by raster scanning the specimen through the small illuminated spot.

135

Top Quark Production at the Tevatron Collider  

Science Conference Proceedings (OSTI)

Top quark physics has been a rich testing ground for the standard model since the top quark discovery in 1995. The large mass of top quark suggests that it could play a special role in searches for new phenomena. In this paper I provide an overview of recent top quark production cross section measurements from both CDF and D0 collaborations and also some new physics searches done in the top quark sector.

Li, Liang; /UC, Riverside

2011-07-01T23:59:59.000Z

136

Top quark production at the Tevatron  

Science Conference Proceedings (OSTI)

The Fermilab Tevatron has, until recently, been the only accelerator with sufficient energy to produce top quarks. The CDF and D0 experiments have collected large samples of top quarks. We report on recent top quark production measurements of the single top and t{bar t} production cross sections, as well as studies of the t{bar t} invariant mass distribution and a search for highly boosted top quarks.

Varnes, Erich W.; /Arizona U.

2010-09-01T23:59:59.000Z

137

Observation of the Top Quark  

E-Print Network (OSTI)

The D collaboration reports on a search for the Standard Model top quark in pp collisions at p s = 1:8 TeV at the Fermilab Tevatron, with an integrated luminosity of approximately 50 pb \\Gamma1 . We have searched for t t production in the dilepton and single-lepton decay channels, with and without tagging of b-quark jets. We observed 17 events with an expected background of 3:8 \\Sigma 0:6 events. The probability for an upward fluctuation of the background to produce the observed signal is 2 \\Theta 10 \\Gamma6 (equivalent to 4.6 standard deviations). The kinematic properties of the excess events are consistent with top quark decay. We conclude that we have observed the top quark and measure its mass to be 199 +19 \\Gamma21 (stat.) \\Sigma22 (syst.) GeV/c 2 and its production cross section to be 6:4 \\Sigma 2:2 pb. Typeset using REVT E X 3 In the Standard Model (SM), the top quark is the weak isospin partner of the b quark. The D collaboration published a lower limit on the mas...

Abachi Abbott Abolins

1995-01-01T23:59:59.000Z

138

Observation of the Top Quark  

E-Print Network (OSTI)

The DØ collaboration reports on a search for the Standard Model top quark in p¯p collisions at p s = 1:8 TeV at the Fermilab Tevatron, with an integrated luminosity of approximately 50 pb \\Gamma1 . We have searched for t ¯ t production in the dilepton and single-lepton decay channels, with and without tagging of b-quark jets. We observed 17 events with an expected background of 3:8 \\Sigma 0:6 events. The probability for an upward fluctuation of the background to produce the observed signal is 2 \\Theta 10 \\Gamma6 (equivalent to 4.6 standard deviations). The kinematic properties of the excess events are consistent with top quark decay. We conclude that we have observed the top quark and measure its mass to be 199 +19 \\Gamma21 (stat.) \\Sigma22 (syst.) GeV/c 2 and its production cross section to be 6:4 \\Sigma 2:2 pb. Typeset using REVT E X In the Standard Model (SM), the top quark is the weak isospin partner of the b quark. The DØ collaboration published a lower limit on the m...

Abachi Abbott

1995-01-01T23:59:59.000Z

139

Observation of the Top Quark  

DOE R&D Accomplishments (OSTI)

Top quark production is observed in{bar p}p collisions at{radical}s= 1.8 TeV at the Fermilab Tevatron. The Collider Detector at Fermilab (CDF) and D{O} observe signals consistent with t{bar t} to WWb{bar b}, but inconsistent with the background prediction by 4.8{sigma} (CDF), 4.6a (D{O}). Additional evidence for the top quark Is provided by a peak in the reconstructed mass distribution. The kinematic properties of the excess events are consistent with the top quark decay. They measure the top quark mass to be 176{plus_minus}8(stat.){plus_minus}10(sys.) GeV/c{sup 2} (CDF), 199{sub -21}{sup+19}(stat.){plus_minus}22(sys.) GeV/c{sup 2} (D{O}), and the t{bar t} production cross section to be 6.8{sub -2.4}{sup+3.6}pb (CDF), 6.4{plus_minus}2.2 pb (D{O}).

Kim, S. B.

1995-08-00T23:59:59.000Z

140

An Approach for Improving Cirrus Cloud-Top Pressure/Height Estimation by Merging High-Spatial-Resolution Infrared-Window Imager Data with High-Spectral-Resolution Sounder Data  

Science Conference Proceedings (OSTI)

The next-generation Visible and Infrared Imaging Radiometer Suite (VIIRS) offers infrared (IR)-window measurements with a horizontal spatial resolution of at least 1 km, but it lacks IR spectral bands that are sensitive to absorption by carbon ...

Elisabeth Weisz; W. Paul Menzel; Nadia Smith; Richard Frey; Eva E. Borbas; Bryan A. Baum

2012-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "top optical images" 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

Top Turns Ten: Celebrating the Discovery of the Top Quark (Video presentations from Fermilab)  

DOE Data Explorer (OSTI)

The scientific lectures marking the tenth anniversary of the discovery of the Top Quark were given at Fermilab on October 21, 2005. The available videos include: 1) Opening Remarks by Pier Oddone and an Introduction by Alvin Tolestrup; 2) Paving the Road to Top; 3) Pbars and the Road to the Top; 4) Why the Top; 5) Top Importance; 6) CDF Detector and Silicon Vertex Detector (SVX); 7) CDF’s Road to Top; 8) Perspectives of the (then) Young Physicists; 9) The DZero Graduate Student Perspective; 10) A Perspective from the Trenches at DZero (1992 - 1995); 11) DZero Top III (Double Secret Probation); 12) Topping the Top.

142

Radiation Budget Parameters at the Top of the Earth's Atmosphere from METEOSAT Data  

Science Conference Proceedings (OSTI)

This paper presents a method to derive radiation budget parameters (albedo and emitted longwave flux) at the top of the atmosphere from the three-band METEOSAT images. Model calculations are used to correct for the anisotropic radiance ...

Marianne Gube

1982-12-01T23:59:59.000Z

143

Top  

E-Print Network (OSTI)

annual authorized trade in ‘small arms ’ 1 exceeds USD 7 billion a year (Small Arms Survey, 2011a, p. 9). 2 A lack of transparency on the part of many states and difficulties of disaggregating data on transfers that some states do report create numerous challenges for the study of this activity. Lists of the most active countries tend to be skewed towards those that are more transparent. Nonetheless, sufficient data and expertise exist to allow for broad assessments to be made about the trade in small arms. This Research Note assesses the countries that import the greatest value of small arms. As highlighted in the Survey’s Research Note 11 (Small Arms Survey, 2011b), state reporting of small arms transfers is opaque or incomplete. In their submissions to international reporting mechanisms, such as the UN Commodity Trade Statistics Database (better known as UN Comtrade), the UN Register of Conventional Arms, and national reports, states either fail to report transfers or are selective in those that they report. Furthermore, international reporting mechanisms often aggregate various commodities, such as different types of weapon, into single categories, which makes it difficult to discern trade data on any one type of weapon. Since 2001 at least 15 countries have imported more than USD 100 million worth of small arms in a single calendar year. Analysis of the 2001–08 3 period indicates that the United States is the country with the largest recorded yearly imports, having received more than USD 1

Small Arms Transfers; The Small; Arms Survey

2011-01-01T23:59:59.000Z

144

Depth profiling the optical absorption and thermal reflection coefficient via an analysis based on the method of images (abstract)  

Science Conference Proceedings (OSTI)

The problem of depth profiling optical absorption in a thermally depth variable solid is a problem of direct interest for the analysis of complex structured materials. In this work

J. F. Power

2003-01-01T23:59:59.000Z

145

Top500 versus sustained performance: the top problems with the top500 list - and what to do about them  

Science Conference Proceedings (OSTI)

A popular U.S. talk show host uses "top 10" lists to critique events and culture every night. Our HPC industry is captivated by another list, the TOP500 list, as a way to track HPC systems' performance based on FLOPS/S assessed by a single, long-lived ... Keywords: benchmarks, hpc, linpack, percu, performance, supercomputing, system evaluation, top500

William T.C. Kramer

2012-09-01T23:59:59.000Z

146

Building Technologies Office: Top Innovations 2012  

NLE Websites -- All DOE Office Websites (Extended Search)

Top Innovations 2012 to Top Innovations 2012 to someone by E-mail Share Building Technologies Office: Top Innovations 2012 on Facebook Tweet about Building Technologies Office: Top Innovations 2012 on Twitter Bookmark Building Technologies Office: Top Innovations 2012 on Google Bookmark Building Technologies Office: Top Innovations 2012 on Delicious Rank Building Technologies Office: Top Innovations 2012 on Digg Find More places to share Building Technologies Office: Top Innovations 2012 on AddThis.com... About Take Action to Save Energy Partner With DOE Activities Solar Decathlon Building America Research Innovations Research Tools Building Science Education Climate-Specific Guidance Solution Center Partnerships Meetings Publications Home Energy Score Home Performance with ENERGY STAR Better Buildings Neighborhood Program

147

Looking for the Top Quark - Teacher Overview  

NLE Websites -- All DOE Office Websites (Extended Search)

Scientists had evidence for the existence of all of the quarks except for the Top quark. If the Top quark couldn't be found, atomic theory would have to be drastically...

148

Top 100 Oil and Gas Fields  

U.S. Energy Information Administration (EIA)

Appendix B Top 100 Oil and Gas Fields This appendix presents estimates of the proved reserves and production of the top 100 liquids or gas fields by reserves or by ...

149

Top Quark Production at the LHC  

E-Print Network (OSTI)

Top quark production in proton proton collisions at the Large Hadron Collider (LHC) is reviewed using data collected by the ATLAS and CMS detectors. Most recent results on searches for new physics related to top quark production mechanism are included.

Francesco Spanò; for the ATLAS; CMS collaborations

2011-12-16T23:59:59.000Z

150

Heavy flavour physics from top to bottom  

SciTech Connect

We review the status of heavy flavour physics at the Fermilab Tevatron collider by summarizing recent top quark and B physics results from CDF and D0. In particular we discuss the measurement of the top quark mass and top production cross section as well as B meson lifetimes and time dependent B{anti B} mixing results. An outlook of perspectives for top and B physics in Run II starting in 1999 is also given.

Paulini, M. [Lawrence Berkeley National Lab., CA (United States); CDF and D0 Collaboration

1998-02-01T23:59:59.000Z

151

MHD Integrated Topping Cycle Project  

DOE Green Energy (OSTI)

This eighteenth quarterly technical progress report of the MHD Integrated Topping cycle Project presents the accomplishments during the period November 1, 1991 to January 31, 1992. The precombustor is fully assembled. Manufacturing of all slagging stage components has been completed. All cooling panels were welded in place and the panel/shell gap was filled with RTV. Final combustor assembly is in progress. The low pressure cooling subsystem (LPCS) was delivered to the CDIF. Second stage brazing issues were resolved. The construction of the two anode power cabinets was completed.

Not Available

1992-07-01T23:59:59.000Z

152

Table-top job analysis  

SciTech Connect

The purpose of this Handbook is to establish general training program guidelines for training personnel in developing training for operation, maintenance, and technical support personnel at Department of Energy (DOE) nuclear facilities. TTJA is not the only method of job analysis; however, when conducted properly TTJA can be cost effective, efficient, and self-validating, and represents an effective method of defining job requirements. The table-top job analysis is suggested in the DOE Training Accreditation Program manuals as an acceptable alternative to traditional methods of analyzing job requirements. DOE 5480-20A strongly endorses and recommends it as the preferred method for analyzing jobs for positions addressed by the Order.

Not Available

1994-12-01T23:59:59.000Z

153

Adaptive wiener image restoration kernel  

DOE Patents (OSTI)

A method and device for restoration of electro-optical image data using an adaptive Wiener filter begins with constructing imaging system Optical Transfer Function, and the Fourier Transformations of the noise and the image. A spatial representation of the imaged object is restored by spatial convolution of the image using a Wiener restoration kernel.

Yuan, Ding (Henderson, NV)

2007-06-05T23:59:59.000Z

154

Top Quark Mass Measurements at the Tevatron  

SciTech Connect

We report the latest results on the top-quark mass and on the top-antitop mass difference from the CDF and D0 collaborations using data collected at the Fermilab Tevatron p{bar p} collider at {radical}s = 1.96 TeV. We discuss general issues in top-quark mass measurements and present new results from direct measurements and from top-pair production cross-section. We also report new results on the top-antitop mass difference.

Ye, Zhenyu; /Fermilab

2011-07-01T23:59:59.000Z

155

MHD Integrated Topping Cycle Project  

DOE Green Energy (OSTI)

The overall objective of the project is to design and construct prototypical hardware for an integrated MHD topping cycle, and conduct long duration proof-of-concept tests of integrated system at the US DOE Component Development and Integration Facility in Butte, Montana. The results of the long duration tests will augment the existing engineering design data base on MHD power train reliability, availability, maintainability, and performance, and will serve as a basis for scaling up the topping cycle design to the next level of development, an early commercial scale power plant retrofit. The components of the MHD power train to be designed, fabricated, and tested include: A slagging coal combustor with a rated capacity of 50 MW thermal input, capable of operation with an Eastern (Illinois {number sign}6) or Western (Montana Rosebud) coal, a segmented supersonic nozzle, a supersonic MHD channel capable of generating at least 1.5 MW of electrical power, a segmented supersonic diffuser section to interface the channel with existing facility quench and exhaust systems, a complete set of current control circuits for local diagonal current control along the channel, and a set of current consolidation circuits to interface the channel with the existing facility inverter.

Not Available

1992-01-01T23:59:59.000Z

156

MHD Integrated Topping Cycle Project  

DOE Green Energy (OSTI)

The Magnetohydrodynamics (MHD) Integrated Topping Cycle (ITC) Project represents the culmination of the proof-of-concept (POC) development stage in the US Department of Energy (DOE) program to advance MHD technology to early commercial development stage utility power applications. The project is a joint effort, combining the skills of three topping cycle component developers: TRW, Avco/TDS, and Westinghouse. TRW, the prime contractor and system integrator, is responsible for the 50 thermal megawatt (50 MW{sub t}) slagging coal combustion subsystem. Avco/TDS is responsible for the MHD channel subsystem (nozzle, channel, diffuser, and power conditioning circuits), and Westinghouse is responsible for the current consolidation subsystem. The ITC Project will advance the state-of-the-art in MHD power systems with the design, construction, and integrated testing of 50 MW{sub t} power train components which are prototypical of the equipment that will be used in an early commercial scale MHD utility retrofit. Long duration testing of the integrated power train at the Component Development and Integration Facility (CDIF) in Butte, Montana will be performed, so that by the early 1990's, an engineering data base on the reliability, availability, maintainability and performance of the system will be available to allow scaleup of the prototypical designs to the next development level. This Sixteenth Quarterly Technical Progress Report covers the period May 1, 1991 to July 31, 1991.

Not Available

1992-03-01T23:59:59.000Z

157

Top Incomes in Indonesia, 1920-2004 *  

E-Print Network (OSTI)

Using taxation and household survey data, this paper estimates top income shares for Indonesia during 1920-2004. Our results suggest that top income shares grew during the 1920s and 1930s, but fell in the post-war era. In more recent decades, we observe a sharp rise in top income shares during the late-1990s, coincident with the economic downturn, and some evidence that top income shares fell in the early-2000s. For prewar Indonesia, we decompose top income shares by income source, and find that for groups below the top 0.5 percent, a majority of income was derived from wages. Throughout the twentieth century, top income shares in Indonesia have been higher than in India, broadly comparable to Japan, and somewhat lower than levels prevailing in the

Andrew Leigh; Pierre Van Der Eng

2006-01-01T23:59:59.000Z

158

Top Hat Pressure System Hyperbaric Test Analysis | Department...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Top Hat Pressure System Hyperbaric Test Analysis Top Hat Pressure System Hyperbaric Test Analysis This file contains data from pressure measurements inside Top Hat 4....

159

MHD Integrated Topping Cycle Project  

DOE Green Energy (OSTI)

This seventeenth quarterly technical progress report of the MHD Integrated Topping Cycle Project presents the accomplishments during the period August 1, 1991 to October 31, 1991. Manufacturing of the prototypical combustor pressure shell has been completed including leak, proof, and assembly fit checking. Manufacturing of forty-five cooling panels was also completed including leak, proof, and flow testing. All precombustor internal components (combustion can baffle and swirl box) were received and checked, and integration of the components was initiated. A decision was made regarding the primary and backup designs for the 1A4 channel. The assembly of the channel related prototypical hardware continued. The cathode wall electrical wiring is now complete. The mechanical design of the diffuser has been completed.

Not Available

1992-07-01T23:59:59.000Z

160

Top Innovations 2012 | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Top Innovations 2012 Top Innovations 2012 Top Innovations 2012 On this page, you will find Building America's Top Innovations from 1995 through 2012, with links to a profile describing each innovation. Note that some categories may not have a top innovation each year. Flow chart graphic 1. Advanced Technologies and Practices Top Innovations in this category cover research in thermal enclosure improvements, HVAC components, ventilation and other health and safety issues. 1.1 Building Science Solutions Thermal Enclosure: Basement Insulation Systems Advanced Framing Systems and Packages Unvented, Conditioned Attics Unvented, Conditioned Crawlspaces High-R Walls Heating, Ventilation, and Air Conditioning: Integration of HVAC System Design with Simplified Duct Distribution Ducts in Conditioned Space

Note: This page contains sample records for the topic "top optical images" 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

Single Top Quark Production at the Tevatron  

E-Print Network (OSTI)

While the heaviest known elementary particle, the top quark, has been discovered in 1995 by the CDF and D0 collaborations in ttbar events, it took 14 more years until the observation of single top quark production. In this article, we discuss recent studies of single top quark production by the CDF and D0 collaborations at the Tevatron. In particular, we present the measurement of single top quark s- and t-channel production combined, the first observation of t-channel production, the simultaneous measurement of s- and t-channel production cross sections as well as the extraction of the CMK matrix element |Vtb}|.

Yvonne Peters; for the CDF; D0 Collaborations

2012-10-26T23:59:59.000Z

162

Mesa Top Photovoltaic Array (Fact Sheet)  

DOE Green Energy (OSTI)

Fact sheet overview of the Mesa Top Photovoltaic Array project implemented by the Department of Energy Golden Office and National Renewable Energy Laboratory.

Not Available

2009-07-01T23:59:59.000Z

163

MHD Integrated Topping Cycle Project  

DOE Green Energy (OSTI)

This fourteenth quarterly technical progress report of the MHD Integrated Topping Cycle Project presents the accomplishments during the period November 1, 1990 to January 31, 1991. Testing of the High Pressure Cooling Subsystem electrical isolator was completed. The PEEK material successfully passed the high temperature, high pressure duration tests (50 hours). The Combustion Subsystem drawings were CADAM released. The procurement process is in progress. An equipment specification and RFP were prepared for the new Low Pressure Cooling System (LPCS) and released for quotation. Work has been conducted on confirmation tests leading to final gas-side designs and studies to assist in channel fabrication.The final cathode gas-side design and the proposed gas-side designs of the anode and sidewall are presented. Anode confirmation tests and related analyses of anode wear mechanisms used in the selection of the proposed anode design are presented. Sidewall confirmation tests, which were used to select the proposed gas-side design, were conducted. The design for the full scale CDIF system was completed. A test program was initiated to investigate the practicality of using Avco current controls for current consolidation in the power takeoff (PTO) regions and to determine the cause of past current consolidation failures. Another important activity was the installation of 1A4-style coupons in the 1A1 channel. A description of the coupons and their location with 1A1 channel is presented herein.

Not Available

1992-02-01T23:59:59.000Z

164

Remote Sensing of Multilayer Cloud-Top Pressure Using Combined Measurements of MERIS and AATSR on board Envisat  

Science Conference Proceedings (OSTI)

A novel and unique algorithm for the retrieval of multilayer cloud-top pressure is presented, relying on synergetic observations of the Medium Resolution Imaging Spectrometer (MERIS) and Advanced Along Track Scanning Radiometer (AATSR) on board ...

Rasmus Lindstrot; Rene Preusker; Jürgen Fischer

2010-06-01T23:59:59.000Z

165

NNLL threshold resummation for top-pair and single-top production  

E-Print Network (OSTI)

I discuss threshold resummation at NNLL accuracy in the standard moment-space approach in perturbative QCD for top-pair and single-top production. For top quark pair production I present new approximate NNLO results for the total cross section and for the top quark transverse momentum and rapidity distributions at 8 TeV LHC energy. I discuss the accuracy of the soft-gluon approximation and show that the NLO and NNLO approximate results from resummation are practically indistinguishable from exact NLO and partial NNLO results. For single top production I present new approximate NNLO results for the total cross sections in all three channels at the LHC and also for the top quark transverse momentum distributions in t-channel production and in top-quark associated production with a W boson. For both ttbar and single-top production the agreement of theoretical results with LHC and Tevatron data is excellent.

Nikolaos Kidonakis

2012-10-29T23:59:59.000Z

166

Top 10 Nano & Chem Eng TMVogel, updated Fall 2012 Top 10 Things UCSD Nanoengineering &  

E-Print Network (OSTI)

Top 10 Nano & Chem Eng TMVogel, updated Fall 2012 Top 10 Things UCSD Nanoengineering & Chemical Engineering Researchers Need to Know http://libguides.ucsd.edu/nano http://libguides.ucsd.edu/chemeng http

Hampton, Randy

167

World average top-quark mass  

SciTech Connect

This paper summarizes a talk given at the Top2008 Workshop at La Biodola, Isola d Elba, Italy. The status of the world average top-quark mass is discussed. Some comments about the challanges facing the experiments in order to further improve the precision are offered.

Glenzinski, D.; /Fermilab

2008-01-01T23:59:59.000Z

168

Final TOPS Rpt-10pt.PDF  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

TECHNOLOGICAL OPPORTUNITIES TECHNOLOGICAL OPPORTUNITIES TO INCREASE THE PROLIFERATION RESISTANCE OF GLOBAL CIVILIAN NUCLEAR POWER SYSTEMS (TOPS) REPORT BY THE TOPS TASK FORCE OF THE NUCLEAR ENERGY RESEARCH ADVISORY COMMITTEE (NERAC) JANUARY 2001 i TABLE OF CONTENTS INTRODUCTORY NOTE .............................................................................................................iii EXECUTIVE SUMMARY .......................................................................................................ES-1 I. INTRODUCTION ..............................................................................................................1 A. Scope and Purpose ..................................................................................................1 B. The Potential Role of Nuclear Power ......................................................................2

169

The Top Quark - 2006 and Beyond  

E-Print Network (OSTI)

We know there is new physics at the electroweak scale, but we don't know what it is. Right now, the top quark is our only window on to this physics. In almost all models of electroweak symmetry breaking, top either couples strongly to new particles or its properties are modified in some way. Top is being studied in detail at the Fermilab Tevatron. Its production cross section has been measured in a variety of channels; its mass has been determined to better than 2%, and can be used to constrain the mass of the Higgs. Top quark decays have been tested and non-standard production mechanisms searched for. Single top production probes the electroweak properties of top, and has not yet been observed; searches are now closing in on this process and it should be seen soon. So far, all of the top quark's properties are consistent with the Standard Model. However, the data still to come at the Tevatron will increase the precision of all these measurements, and the enormous statistics available at the LHC will open up new possibilities such as observation of spin correlations and perhaps even CP violation in the top sector.

John Womersley

2006-04-04T23:59:59.000Z

170

Top quark spin and $Htb$ interaction in charged Higgs and top quark associated production at LHC  

E-Print Network (OSTI)

We study the charged Higgs production at LHC via its associated production with top quark. The kinematic cuts are optimized to suppress the background processes so that the reconstruction of the charged Higgs and top quark is possible. The angular distributions with respect to top quark spin are explored to study the $Htb$ interaction at LHC.

Xue Gong; Zong-Guo Si; Shuo Yang; Ya-juan Zheng

2012-10-29T23:59:59.000Z

171

Advanced Optics | Center for Functional Nanomaterials  

NLE Websites -- All DOE Office Websites (Extended Search)

Optical Spectroscopy and Microscopy Optical Spectroscopy and Microscopy optics The Advanced Optical Spectroscopy & Microscopy Facility combines a broad range of optical instruments suitable for studies of optical properties of hard, soft or biological materials using ultrafast and nonlinear spectroscopy, and single-molecule optical and confocal methods. Capabilities Fluorescence imaging (up to five channels simultaneously), two-color fluorescence lifetime imaging, spectral imaging, and fluorescence correlation spectroscopy Fluorescence lifetime measurements, including time-resolved fluorescence anisotropy and time-resolved fluorescence spectra, using single-photon counting and fluorescence upconversion methods Single-molecule spectroscopy: fluorescence intensity, lifetimes, anisotropy and fluorescence spectra

172

Top Mass Measurements at the Tevatron  

Science Conference Proceedings (OSTI)

First observed in 1995, the top quark is the third-generation up-type quark of the standard model of particle physics (SM). The CDF and D0 collaborations have analyzed many t{bar t} events produced by the Tevatron collider, studying many properties of the top quark. Among these, the mass of the top quark is a fundamental parameter of the SM, since its value constrains the mass of the yet to be observed Higgs boson. The analyzed events were used to measure the mass of the top quark m{sub t} {approx_equal} 173.2 GeV/c{sup 2} with an uncertainty of less than 1 GeV/c{sup 2}. We report on the latest top mass measurements at the Tevatron, using up to 6 fb{sup -1} of data for each experiment.

Potamianos, Karolos; /Purdue U.

2012-01-01T23:59:59.000Z

173

Optical fuel pin scanner  

DOE Patents (OSTI)

An optical scanner for indicia arranged in a focal plane at a cylindrical outside surface by use of an optical system including a rotatable dove prism. The dove prism transmits a rotating image of an encircled cylindrical surface area to a stationary photodiode array.

Kirchner, Tommy L. (Richland, WA); Powers, Hurshal G. (Richland, WA)

1983-01-01T23:59:59.000Z

174

Electric top drives gain wide industry acceptance  

Science Conference Proceedings (OSTI)

Since its introduction, the top drive drilling system has gained acceptance as a productive and safe method for drilling oil and gas wells. Originally, the system was used mostly for offshore and higher cost land drilling, and it had to be installed as a permanent installation because of its enormous weight and size. Essentially, a top drive replaces the kelly and rotary table as the means of rotating drillpipe on oil, gas and geothermal rigs and is considered to be 15% to 40% more efficient than a kelly drive. Top drive systems allow the operator to drill and maintain directional orientation for triple stands and provide tripping efficiency because of the ability to ream and circulate with triple stands, to reduce the risk of stuck pipe or lost wells, and to improve well control and pipe handling safety. The paper describes electric top drives with DC motors, top drives with AC motors, top drives with permanent magnet motors, and top drives with permanent magnet brushless synchronous motors.

Riahi, M.L.

1998-05-01T23:59:59.000Z

175

Top Quark Production at the Tevatron  

SciTech Connect

The top quark is the most recently discovered of the standard model quarks, and because of its very large mass, studies of the top quark and its interactions are important both as tests of the standard model and searches for new phenomena. In this document, recent results of analyses of top quark production, via both the electroweak and strong interactions, from the CDF and D0 experiments are presented. The results included here utilize a dataset corresponding to up to 6 fb{sup -1} of integrated luminosity, slightly more than half of the dataset recorded by each experiment before the Tevatron was shutdown in September 2011.

Mietlicki, David J.

2011-12-01T23:59:59.000Z

176

Single Top Production at the Tevatron  

SciTech Connect

We present recent results of single top quark production in the lepton plus jet final state, performed by the CDF and D0 collaborations based on 7.5 and 5.4 fb{sup -1} of p{bar p} collision data collected at {radical}s = 1.96 TeV from the Fermilab Tevatron collider. Multivariate techniques are used to separate the single top signal from the backgrounds. Both collaborations present measurements of the single top quark cross section and the CKM matrix element |V{sub tb}|. A search for anomalous Wtb coupling from D0 is also presented.

Wu, Zhenbin; /Baylor U.

2012-05-01T23:59:59.000Z

177

Top quark mass measurement at the Tevatron  

SciTech Connect

The authors report on the latest experimental measurements of the top quark mass by the CDF and D0 Collaborations at the Fermilab Tevatron. They present a new top mass measurement using the t{bar t} events collected by the D0 Collaboration in Run I between 1994 and 1996. This result is combined with previous measurements to yield a new world top mass average. They also describe several preliminary results using up to 193 pb{sup -1} of t{bar t} events produced in {bar p}p collisions at {radical}s = 1.96 TeV during the Run II of the Tevatron.

Guimaraes da Costa, Joao; /Harvard U.

2004-12-01T23:59:59.000Z

178

LANL named 2010 top corporate volunteer organization  

NLE Websites -- All DOE Office Websites (Extended Search)

2010 top corporate volunteer organization 2010 top corporate volunteer organization LANL named 2010 top corporate volunteer organization The Laboratory ranked ahead of dozens of other qualifying companies with 10,000 or more employees. May 18, 2011 Building and painting birdhouses with children in Santa Fe Building and painting birdhouses with children in Santa Fe. Contact Steve Sandoval Communicatons Office (505) 665-9206 Email LOS ALAMOS, New Mexico, May 18, 2011-Los Alamos National Laboratory has earned an award as the top corporate volunteer organization among large employers in VolunteerMatch's network of more than 140 leading companies and brands. Debbi Wersonick of Los Alamos National Laboratory's Community Programs Office, coordinator of volunteer programs at the Laboratory, traveled to Chicago to receive the Corporate Volunteer Program of the Year Award, given

179

WIPP Receives Top Mine Safety Award  

NLE Websites -- All DOE Office Websites (Extended Search)

September 18, 2013 - The U.S. Department of Energy's (DOE) Waste Isolation Pilot Plant (WIPP) received top safety honors from the New Mexico Bureau of Mine Safety (BMS) and the New...

180

NERSC Supports 2013's Top Breakthroughs  

NLE Websites -- All DOE Office Websites (Extended Search)

Supports 2013's Supports 2013's Top Breakthroughs NERSC Supports Top Breakthroughs of 2013 December 20, 2013 | Tags: Astrophysics, Hopper, PDSF, Physics Linda Vu, +1 510 495 2402, lvu@lbl.gov Research supported by NERSC is being honored by end-of-year reviews in two leading magazines: Physics World and WIRED. The IceCube South Pole Neutrino Observatory was notably named to both lists, being honored as the most important discovery by Physics World. Three of Physics World's top 10 breakthroughs of 2013 went to discoveries that used NERSC resources. In addition to the IceCube South Pole Neutrino Observatory's top honor, "breakthrough of the year," the magazine named the European Space Agency's European Planck space telescope, which revealed new information about the age and composition of the universe; and the South

Note: This page contains sample records for the topic "top optical images" 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

Diesel prices top $4 per gallon  

U.S. Energy Information Administration (EIA) Indexed Site

Diesel prices top 4 per gallon The U.S. average retail price for on-highway diesel fuel surpassed the four dollar mark for the first time this year. Prices rose to 4.02 a gallon...

182

Deuterium in North Atlantic Storm Tops  

Science Conference Proceedings (OSTI)

During the ERICA project in 1989, ice crystals were collected from the tops bf two winter storms and one broad cirrus cloud. Deuterium concentration in the storm ice samples, together with a model of isotope fractionation, are used to determine ...

Ronald B. Smith

1992-11-01T23:59:59.000Z

183

America's Next Top Energy Innovator Challenge  

Energy.gov (U.S. Department of Energy (DOE))

The America’s Next Top Energy Innovator Challenge, a part of the Startup America initiative, made it easier for start-ups to use inventions and technology developed at the U.S. Department of Energy...

184

Commissioning ATLAS and CMS with top quarks  

E-Print Network (OSTI)

The large ttbar production cross-section at the LHC suggests the use of top quark decays to calibrate several critical parts of the detectors, such as the trigger system, the jet energy scale and b-tagging.

B. S. Acharya; F. Cavallari; G. Corcella; R. Di Sipio; G. Petrucciani

2008-05-25T23:59:59.000Z

185

Looking for the Top Quark Game  

NLE Websites -- All DOE Office Websites (Extended Search)

In Looking for the Top Quark, each player receives six quarks that they hide on a grid. The players use coordinates to find their opponent's hidden quarks. The first player...

186

Single top quark measurements with CMS  

E-Print Network (OSTI)

Measurements of single top quark production are presented, performed using CMS data collected in 2011 and 2012 at centre-of-mass energies of 7 and 8 TeV. The cross sections for the electroweak production of single top quarks in the t-channel and in association with W-bosons is measured and the results are used to place constraints on the CKM matrix element |V_tb|.

Jeannine Wagner-Kuhr

2013-02-18T23:59:59.000Z

187

Tools for top physics at CDF  

SciTech Connect

The authors describe here the different tools used for top physics analysis in the CDF Collaboration. In particular, they discuss how the jet energy scale, lepton identification, b tagging algorithms and the neural networks help to improve the signal to background ratio of the top sample in some cases and to reduce the dominant uncertainties in other. Results using each one of these tools are also presented.

Palencia, E.; /Fermilab

2008-07-01T23:59:59.000Z

188

Microfabricated surface ion trap on a high-finesse optical mirror  

E-Print Network (OSTI)

A novel approach to optics integration in ion traps is demonstrated based on a surface electrode ion trap that is microfabricated on top of a dielectric mirror. Additional optical losses due to fabrication are found to be ...

Herskind, Peter F.

189

Top anti-top forward-backward asymmetry in the economical 331 model  

Science Conference Proceedings (OSTI)

Within the economical 331 model the top-antitop asymmetry at the Tevatron where the quark-antiquark annihilation subprocess dominates is calculated. The results are also discussed.

Mekahlia, A.; Mebarki, N.; Haouchine, M. [Laboratoire de Physique Mathematique et Subatomique, Mentouri University, Constantine (Algeria)

2012-06-27T23:59:59.000Z

190

Building Technologies Office: Building America's Top Innovations Advance  

NLE Websites -- All DOE Office Websites (Extended Search)

America's Top America's Top Innovations Advance High Performance Homes to someone by E-mail Share Building Technologies Office: Building America's Top Innovations Advance High Performance Homes on Facebook Tweet about Building Technologies Office: Building America's Top Innovations Advance High Performance Homes on Twitter Bookmark Building Technologies Office: Building America's Top Innovations Advance High Performance Homes on Google Bookmark Building Technologies Office: Building America's Top Innovations Advance High Performance Homes on Delicious Rank Building Technologies Office: Building America's Top Innovations Advance High Performance Homes on Digg Find More places to share Building Technologies Office: Building America's Top Innovations Advance High Performance Homes on AddThis.com...

191

Top 100 Oil and Gas Fields for 2000  

U.S. Energy Information Administration (EIA)

Appendix B Top 100 Oil and Gas Fields for 2000 This appendix presents estimates of the proved reserves and production of the top 100 oil and gas

192

NNSA Production Office tops Feds Feed Families campaign goal...  

NLE Websites -- All DOE Office Websites (Extended Search)

NNSA Production Office tops ... NNSA Production Office tops Feds Feed Families campaign goal Posted: September 16, 2013 - 9:45am Oak Ridge, Tenn. - Employees of the National...

193

NNSA Production Office tops Feds Feed Families campaign goal...  

National Nuclear Security Administration (NNSA)

Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > NNSA Blog > NNSA Production Office tops Feds Feed Families ... NNSA Production Office tops Feds Feed Families...

194

Success at Sandia - Attracting Top Native American STEM Professionals...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Success at Sandia - Attracting Top Native American STEM Professionals to the Department of Energy Success at Sandia - Attracting Top Native American STEM Professionals to the...

195

KCP hosts top STEM educators to develop curriculum | National...  

NLE Websites -- All DOE Office Websites (Extended Search)

NNSANews posted a photo: KCP hosts top STEM educators to develop curriculum The Kansas City Plant recently hosted top STEM educators from Historically Black Colleges and...

196

Top 100 Oil and Gas Fields - Energy Information Administration  

U.S. Energy Information Administration (EIA)

Appendix B Top 100 Oil and Gas Fields This appendix presents estimates of the proved reserves and production of the largest or top 100 ...

197

Heavy flavor production and top quark search at hadron colliders  

SciTech Connect

We review heavy flavor production at hadron colliders, with an eye towards the physics of the top quark. Motivation for existence of top, and current status of top search are reviewed. The physics of event simulation at hadron colliders is reviewed. We discuss characteristics of top quark events at p{bar p} colliders that may aid in distinguishing the top quark signal from Standard Model backgrounds, and illustrate various cuts which may be useful for top discovery. Top physics at hadron supercolliders is commented upon, as well as top quark mass measurement techniques. 22 refs., 5 figs.

Baer, H.A.

1991-01-01T23:59:59.000Z

198

Low Dose Investigator one of Canada's Top 40  

NLE Websites -- All DOE Office Websites (Extended Search)

Low Dose Investigator one of Canada's Top 40 Olga Kovalchuk Congratulations to Low Dose Radiation Research Program investigator Olga Kovalchuk on being named one of "Canada's Top...

199

Portable top drive cuts horizontal drilling costs  

SciTech Connect

Economic analysis of a seven-well, long-reach horizontal drilling program into an unconsolidated, heavy-oil-bearing reservoir in Winter field near the Alberta/Saskatchewan border in Canada reveals that -- in the right application -- renting a portable top drive drilling system can reduce total drilling costs. Use of the portable top drive combined with other cost-saving measures enabled Saskoil, one of Canada`s larger independents, to drill more cheaply, on a cost-per-meter basis, in 1993 than in 1992. This was despite significant rental rates for drilling rigs and directional drilling services caused by increased demand in Western Canada. Total cost savings of 10% on wells that would otherwise cost in the (C) $500,000 range are believed realistic. Based on this year`s performance, Saskoil recommends top drive for the company`s future horizontal wells in this area. This article describes the operator`s horizontal well program, advantages of top drive in that program and how it was installed and applied. Estimated time savings for six wells, plus other ways top drive can cut costs and improve operations are discussed.

Jackson, B. [Saskoil, Regina, Saskatchewan (Canada); Yager, D. [Tesco Drilling Tech., Calgary, Alberta (Canada)

1993-11-01T23:59:59.000Z

200

Mesa Top Photovoltaic Array, NREL (Fact Sheet)  

NLE Websites -- All DOE Office Websites (Extended Search)

Mesa Top Photovoltaic Array Mesa Top Photovoltaic Array System Specifications System size: 720 kilowatts (kW) DC Characteristics: Single axis tracker photovoltaic, ground mounted Annual output: 1.2 gigawatt hours (GWh) Location: Top of South Table Mountain, Golden, Colorado Start of operation: December 2008 Financial Terms System ownership: SunEdison financed, built, owns, operates and maintains the system Solar Power and Services Agreement (SPSA): SunEdison and the Western Area Power Administration (WAPA) entered into a 20-year SPSA to provide Solar Energy Services to the Department of Energy (DOE) for use at the National Renewable Energy Laboratory (NREL) Cost to DOE/NREL: There are no up-front costs to DOE or NREL * The price per kilowatt hour (kWh) for the power purchased from the

Note: This page contains sample records for the topic "top optical images" 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

Mesa Top Photovoltaic Array, NREL (Fact Sheet)  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Mesa Top Photovoltaic Array Mesa Top Photovoltaic Array System Specifications System size: 720 kilowatts (kW) DC Characteristics: Single axis tracker photovoltaic, ground mounted Annual output: 1.2 gigawatt hours (GWh) Location: Top of South Table Mountain, Golden, Colorado Start of operation: December 2008 Financial Terms System ownership: SunEdison financed, built, owns, operates and maintains the system Solar Power and Services Agreement (SPSA): SunEdison and the Western Area Power Administration (WAPA) entered into a 20-year SPSA to provide Solar Energy Services to the Department of Energy (DOE) for use at the National Renewable Energy Laboratory (NREL) Cost to DOE/NREL: There are no up-front costs to DOE or NREL * The price per kilowatt hour (kWh) for the power purchased from the

202

Category:Top level | Open Energy Information  

Open Energy Info (EERE)

View form View form View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Category Facebook icon Twitter icon » Category:Top level Jump to: navigation, search This page has been deleted. The deletion and move log for the page are provided below for reference. 16:11, 16 August 2012 Rmckeel (Talk | contribs) deleted page Category:Top level (Mass removal of pages added by Fceeh) There is currently no text in this page. You can search for this page title in other pages, or search the related logs, but you do not have permission to create this page. Subcategories This category has only the following subcategory. H [×] Help‎ 68 pages Retrieved from "http://en.openei.org/wiki/Category:Top_level"

203

Top differential cross section measurements (Tevatron)  

SciTech Connect

Differential cross sections in the top quark sector measured at the Fermilab Tevatron collider are presented. CDF used 2.7 fb{sup -1} of data and measured the differential cross section as a function of the invariant mass of the t{bar t} system. The measurement shows good agreement with the standard model and furthermore is used to derive limits on the ratio {kappa}/M{sub Pl} for gravitons which decay to top quarks in the Randall-Sundrum model. D0 used 1.0 fb{sup -1} of data to measure the differential cross section as a function of the transverse momentum of the top-quark. The measurement shows a good agreement to the next-to-leading order perturbative QCD prediction and various other standard model predictions.

Jung, Andreas W.

2012-01-01T23:59:59.000Z

204

The Top Window for dark matter  

E-Print Network (OSTI)

We investigate a scenario that the top quark is the only window to the dark matter particle. We use the effective Lagrangian approach to write down the interaction between the top quark and the dark matter particle. Requiring the dark matter satisfying the relic density we obtain the size of the effective interaction. We show that the scenario can be made consistent with the direct and indirect detection experiments by adjusting the size of the effective coupling. Finally, we calculate the production cross section for $t\\bar t + \\chi \\bar \\chi$ at the Large Hadron Collider (LHC), which will give rise to an interesting signature of a top-pair plus large missing energy.

Kingman Cheung; Kentarou Mawatari; Eibun Senaha; Po-Yan Tseng; Tzu-Chiang Yuan

2010-09-03T23:59:59.000Z

205

Black optic display  

DOE Patents (OSTI)

An optical display includes a plurality of stacked optical waveguides having first and second opposite ends collectively defining an image input face and an image screen, respectively, with the screen being oblique to the input face. Each of the waveguides includes a transparent core bound by a cladding layer having a lower index of refraction for effecting internal reflection of image light transmitted into the input face to project an image on the screen, with each of the cladding layers including a cladding cap integrally joined thereto at the waveguide second ends. Each of the cores is beveled at the waveguide second end so that the cladding cap is viewable through the transparent core. Each of the cladding caps is black for absorbing external ambient light incident upon the screen for improving contrast of the image projected internally on the screen.

Veligdan, James T. (Manorville, NY)

1997-01-01T23:59:59.000Z

206

Optical flow using phase information for deblurring  

E-Print Network (OSTI)

This thesis presents a method for reconstructing motion-degraded images by using velocity information generated with a phase-based optical flow calculation. The optical flow method applies a set of frequency-tuned Gabor ...

Texin, Cheryl (Cheryl A.)

2007-01-01T23:59:59.000Z

207

Hand-held optical fuel pin scanner  

DOE Patents (OSTI)

An optical scanner for indicia arranged in a focal plane perpendicular to an optical system including a rotatable dove prism. The dove prism transmits a rotating image to a stationary photodiode array.

Kirchner, Tommy L. (Richland, WA); Powers, Hurshal G. (Richland, WA)

1987-01-01T23:59:59.000Z

208

Hand-held optical fuel pin scanner  

DOE Patents (OSTI)

An optical scanner for indicia arranged in a focal plane perpendicular to an optical system including a rotatable dove prism. The dove prism transmits a rotating image to a stationary photodiode array.

Kirchner, T.L.; Powers, H.G.

1980-12-07T23:59:59.000Z

209

Single top quark production at D0  

SciTech Connect

Updates of electroweak single top quark production measurements by the D0 collaboration are presented using 5.4 fb{sup -1} of proton-antiproton collision data from the Tevatron at Fermilab. Measurements of the t-channel, s-channel and combined single top quark production cross section are presented, including an updated lower limit on the CKM matrix element |V{sub tb}|. Also reported are results from searches for gluon-quark flavor-changing neutral currents and W' boson production.

Schwienhorst, Reinhard; /Michigan State U.

2011-09-01T23:59:59.000Z

210

Doe's Race to the top initiative  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Race to the Top Initiative Race to the Top Initiative Recommendations of the EAC Working Group June 5, 2013 EAC Working Group * Chair: Sonny Popowsky * Vice-Chair: Bob Curry * Working Group Members: Ralph Cavanagh, Sue Kelly, Paul Centolella, Dian Grueneich, Val Jensen, Paul Hudson, Phyllis Reha, Ralph Masiello, Mike Weedall RAP Staff - Janine Migden-Ostrander 2 President's State of the Union Message February 12, 2013 "I'm also issuing a new goal for America: Let's cut in half the energy wasted by our homes and businesses over the next 20 years. We'll work

211

Evidence for production of single top quarks  

SciTech Connect

We present first evidence for the production of single top quarks in the D0 detector at the Fermilab Tevatron p{bar p} collider. The standard model predicts that the electroweak interaction can produce a top quark together with an antibottom quark or light quark, without the antiparticle top quark partner that is always produced from strong coupling processes. Top quarks were first observed in pair production in 1995, and since then, single top quark production has been searched for in ever larger datasets. In this analysis, we select events from a 0.9 fb{sup -1} dataset that have an electron or muon and missing transverse energy from the decay of a W boson from the top quark decay, and two, three, or four jets, with one or two of the jets identified as originating from a b hadron decay. The selected events are mostly backgrounds such as W+jets and t{bar t} events, which we separate from the expected signals using three multivariate analysis techniques: boosted decision trees, Bayesian neural networks, and matrix element calculations. A binned likelihood fit of the signal cross section plus background to the data from the combination of the results from the three analysis methods gives a cross section for single top quark production of {sigma}(p{bar p} {yields} tb + X, tqb + X) = 4.7 {+-} 1.3 pb. The probability to measure a cross section at this value or higher in the absence of signal is 0.014%, corresponding to a 3.6 standard deviation significance. The measured cross section value is compatible at the 10% level with the standard model prediction for electroweak top quark production. We use the cross section measurement to directly determine the Cabibbo-Kobayashi-Maskawa quark mixing matrix element that describes the Wtb coupling and find |V{sub tb}f{sub 1}{sup L}| = 1.31{sub -0.21}{sup +0.25}, where f{sub 1}{sup L} is a generic vector coupling. This model-independent measurement translates into 0.68 < |V{sub tb}| {le} 1 at the 95% C.L. in the standard model.

Abazov, V.M.; /Dubna, JINR; Abbott, B.; /Oklahoma U.; Abolins, M.; /Michigan State U.; Acharya, B.S.; /Tata Inst.; Adams, M.; /Illinois U., Chicago; Adams, T.; /Florida State U.; Aguilo, E.; /Simon Fraser U.; Ahn, S.H.; /Korea U., KODEL; Ahsan, M.; /Kansas State U.; Alexeev, G.D.; /Dubna, JINR; Alkhazov, G.; /St. Petersburg, INP /Michigan U.

2008-03-01T23:59:59.000Z

212

Top Quark Physics at the LHC  

E-Print Network (OSTI)

An overview of the prospects of top quark physics at the LHC is presented. The ATLAS and the CMS detectors are about to produce a large amount of data with high top quark contents from the LHC proton-proton collisions. A wide variet y of physics analyses is planned in both experiments, and a number of useful insights have already been obtained regarding their detector performance and physics potential. This summary is based on the talk presented at the Hadron C ollider Physics Symposium 2008, Galena, Illinois, May 27-31, 2008.

Akira Shibata

2008-07-31T23:59:59.000Z

213

Vehicle Technologies Program: Goals, Strategies, and Top Accomplishments (Brochure)  

DOE Green Energy (OSTI)

Fact sheet describes the Vehicle Technologies Program and its goals, strategies and top accomplishments.

Not Available

2010-12-01T23:59:59.000Z

214

Simulation of Top Oil Temperature for Transformers  

E-Print Network (OSTI)

Simulation of Top Oil Temperature for Transformers Masters Thesis and Final Project Report Power-Oil Temperature for Transformers Thesis and Final Report Yong Liang PSERC Publication 01-21 February 2001 #12 for the PSERC project "On-Line Peak Loading of Substation Distribution Transformers Through Accurate Temperature

215

Thunderstorm Cloud Top Observations Using Satellite Stereoscopy  

Science Conference Proceedings (OSTI)

GOES stereoscopy is applied to the study of severe squall line cells. Short interval (3 min) GOES stereoscopic data from the 2–3 May 1979 SESAME case were used to measure cloud top heights of growing storms as a function of time. A one-...

Robert A. Mack; A. F. Hasler; Robert F. Adler

1983-10-01T23:59:59.000Z

216

13 August 2010 TOP 7 CAREER SERVICES  

E-Print Network (OSTI)

13 August 2010 TOP 7 CAREER SERVICES UTILIZED BY HOTEL ADMINISTRATION STUDENTS #1 UNLV Career Day COLLEGE OF HOTEL ADMINISTRATION SUMMARY: UNLV CAREER OUTCOMES 2009 - 2010 Summary of the Career Outcomes Survey conducted by Career Services CAREER EXPERIENCE CAN MAKE A DIFFERENCE! For College of Hotel

Hemmers, Oliver

217

13 August 2010 TOP 7 CAREER SERVICES  

E-Print Network (OSTI)

13 August 2010 TOP 7 CAREER SERVICES UTILIZED BY STUDENTS #1 UNLV CareerLink (Online Recruiting Sciences Business (Except MBA) Education Engineering Fine Arts Hotel Liberal Arts MBA Nursing Public Health% All Allied Health Sciences Business Education Engineering Fine Arts Hotel Liberal Arts MBA Nursing

Hemmers, Oliver

218

Apparent spatial blurring and displacement of a point optical source due to cloud scattering  

Science Conference Proceedings (OSTI)

A Monte Carlo algorithm is used to determine the apparent spatial blurring of a terrestrial 1.07 micron optical point source due to cloud scattering as seen from space. The virtual image of a point source over a virtual source plane area 22.4 x 22.4 square kilometers arising from cloud scattering was determined for stratus clouds (NASA cloud number 5) and altostratus clouds optical source arises from photon scattering by cloud water droplets. Displacement of the virtual source is due to the apparent illumination of the cloud top region directly about the actual source which when viewed at a nonzero look angle gives a projected displacement of the apparent source relative to the actual source. These features are quantified by an analysis of the Monte Carlo computational results.

Brower, K.L.

1997-09-01T23:59:59.000Z

219

On the Annual Cycle, Variability, and Correlations of Oceanic Low-Topped Clouds with Large-Scale Circulation Using Aqua MODIS and ERA-Interim  

Science Conference Proceedings (OSTI)

Eight years of Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) level-3 cloud data in conjunction with collocated Interim ECMWF Re-Analysis are used to investigate relationships between isolated low-topped cloud fraction (LCF) and ...

Terence L. Kubar; Duane E. Waliser; J.-L. Li; Xianan Jiang

2012-09-01T23:59:59.000Z

220

Real-time Molecular Study of Bystander Effects of Low dose Low LET radiation Using Living Cell Imaging and Nanoparticale Optics  

SciTech Connect

In this study two novel approaches are proposed to investigate precisely the low dose low LET radiation damage and its effect on bystander cells in real time. First, a flow shear model system, which would provide us a near in vivo situation where endothelial cells in the presence of extra cellular matrix experiencing continuous flow shear stress, will be used. Endothelial cells on matri-gel (simulated extra cellular matrix) will be subjected to physiological flow shear (that occurs in normal blood vessels). Second, a unique tool (Single nano particle/single live cell/single molecule microscopy and spectroscopy; Figure A) will be used to track the molecular trafficking by single live cell imaging. Single molecule chemical microscopy allows one to single out and study rare events that otherwise might be lost in assembled average measurement, and monitor many target single molecules simultaneously in real-time. Multi color single novel metal nanoparticle probes allow one to prepare multicolor probes (Figure B) to monitor many single components (events) simultaneously and perform multi-complex analysis in real-time. These nano-particles resist to photo bleaching and hence serve as probes for unlimited timeframe of analysis. Single live cell microscopy allows one to image many single cells simultaneously in real-time. With the combination of these unique tools, we will be able to study under near-physiological conditions the cellular and sub-cellular responses (even subtle changes at one molecule level) to low and very low doses of low LET radiation in real time (milli-second or nano-second) at sub-10 nanometer spatial resolution. This would allow us to precisely identify, at least in part, the molecular mediators that are responsible of radiation damage in the irradiated cells and the mediators that are responsible for initiating the signaling in the neighboring cells. Endothelial cells subjected to flow shear (2 dynes/cm2 or 16 dynes/cm2) and exposed to 0.1, 1 and 10 cGy on coverslips will be examined for (a) low LET radiation-induced alterations of cellular function and its physiological relevance in real time; and (b) radiation damage triggered bystander effect on the neighboring unirradiated cells. First, to determine the low LET radiation induced alteration of cellular function we will examine: (i) the real time transformation of single membrane transporters in single living cells; (ii) the pump efficiency of membrane efflux pump of live cells in real time at the molecular level; (iii) the kinetics of single-ligand receptor interaction on single live cell surface (Figure C); and (iv) alteration in chromosome replication in living cell. Second, to study the radiation triggered bystander responses, we will examine one of the key signaling pathway i.e. TNF- alpha/NF-kappa B mediated signaling. TNF-alpha specific nano particle sensors (green) will be developed to detect the releasing dynamics, transport mechanisms and ligand-receptor binding on live cell surface in real time. A second sensor (blue) will be developed to simultaneously monitor the track of NF-kB inside the cell. The proposed nano-particle optics approach would complement our DOE funded study on biochemical mechanisms of TNF-alpha- NF-kappa B-mediated bystander effect.

Natarajan, Mohan [UT Health Science Center at San Antonio; Xu, Nancy R [Old Dominion University; Mohan, Sumathy [UT Health Science Center at San Antonio

2013-06-03T23:59:59.000Z

Note: This page contains sample records for the topic "top optical images" 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

Thin display optical projector  

DOE Patents (OSTI)

An optical system (20) projects light into a planar optical display (10). The display includes laminated optical waveguides (12) defining an inlet face (14) at one end and an outlet screen (16) at an opposite end. A first mirror (26) collimates light from a light source (18) along a first axis, and distributes the light along a second axis. A second mirror (28) collimates the light from the first mirror along the second axis to illuminate the inlet face and produce an image on the screen.

Veligdan, James T. (Manorville, NY)

1999-01-01T23:59:59.000Z

222

Building America's Top Innovations Advance High Performance Homes |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

America's Top America's Top Innovations Advance High Performance Homes Building America's Top Innovations Advance High Performance Homes Building America Top Innovations. Recognizing top innovations in building science. Innovations sponsored by the U.S. Department of Energy's (DOE) Building America program and its teams of building science experts continue to have a transforming impact, leading our nation's home building industry to high-performance homes. Building America researchers have worked directly with more than 300 U.S. production home builders and have boosted the performance of more than 42,000 new homes. Learn more about Building America Top Innovations. 2013 Top Innovations New Top Innovations are awarded annually for outstanding Building America research achievements. Learn more about the 2013 Top Innovations recently

223

Parallel Algorithms for Image Processing on OMC  

Science Conference Proceedings (OSTI)

The author studies a class of VLSI organizations with optical interconnects for fast solutions to several image processing tasks. The organization and operation of these architectures are based on a generic model called OMC, which is used to understand ... Keywords: OMC, computational complexity, computational limits, computerised picture processing, constant time algorithms, fine grain image computing, free space optics, generic model, image processing, optical information processing, optical interconnects, parallel algorithms, parallel algorithms.

Mary Mehrnoosh Eshaghian

1991-07-01T23:59:59.000Z

224

Video image position determination  

DOE Patents (OSTI)

An optical beam position controller in which a video camera captures an image of the beam in its video frames, and conveys those images to a processing board which calculates the centroid coordinates for the image. The image coordinates are used by motor controllers and stepper motors to position the beam in a predetermined alignment. In one embodiment, system noise, used in conjunction with Bernoulli trials, yields higher resolution centroid coordinates.

Christensen, Wynn (Los Alamos, NM); Anderson, Forrest L. (Bernalillo, NM); Kortegaard, Birchard L. (Los Alamos, NM)

1991-01-01T23:59:59.000Z

225

Measurements of top quark properties at the Tevatron collider  

Science Conference Proceedings (OSTI)

The discovery of the top quark in 1995 opened a whole new sector of investigation of the Standard Model; today top quark physics remains a key priority of the Tevatron program. Some of the measurements of top quark properties, for example its mass, will be a long-standing legacy. The recent evidence of an anomalously large charge asymmetry in top quark events suggests that new physics could couple preferably with top quarks. I will summarize this long chapter of particle physics history and discuss the road the top quark is highlighting for the LHC program.

Margaroli, Fabrizio

2011-05-01T23:59:59.000Z

226

edited1_TopQuarkMass  

NLE Websites -- All DOE Office Websites (Extended Search)

CALCULATE THE TOP QUARK MASS CALCULATE THE TOP QUARK MASS TEACHER NOTES DESCRIPTION Students use momentum conservation, energy conservation and two-dimensional vector addition to calculate the mass of the heaviest of the six known quarks. They gather data from data plots from the DØ experiment at Fermilab. The events were chosen carefully; all of the decay products moved in a plane perpendicular to the beam. This makes the vector addition much simpler. STANDARDS National Science Education Standards (U.S. National Research Council) * Physical Science Content Standard B: As a result of this activity . . . students should develop an understanding of: o Conservation of energy and increase in disorder. o Interactions in energy and matter. LEARNING OBJECTIVES Students will know and be able to:

227

Top ECMs for Labs and Data Centers  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Top ECMs for Labs and Top ECMs for Labs and Data Centers FUPWG Otto Van Geet, PE October 10, 2012 2 Labs are Energy Hogs! * 3 to 8 times as energy intensive as office buildings Total Site Energy Use Intensity BTU/sf-yr for various laboratories in the Labs21 Benchmarking Database Typical Office Building 3 * Core information resources - Design Guide - Case Studies - Energy Benchmarking - Best Practice Guides - Technical Bulletins * Design process tools - Env. Performance Criteria - Labs21 Process Manual Labs21 Toolkit 4 Six BIG HITS 1. Scrutinize the air changes: Optimize ventilation rates 2. Tame the hoods: Compare exhaust device options 3. Get real with loads: Right-size HVAC systems 4. Just say no to re-heat: Minimize simultaneous heating and cooling 5. Drop the pressure drop:

228

Platts top 250 global energy company rankings  

SciTech Connect

Revenues and profits for many firms surged last year over previous years. The turnaround from last year's global survey is dramatic. Asset- and revenue-rich integrated oil and gas companies dominate the top rungs of the 2005 Platts Top 250 Global Energy Company Rankings. The following industry segments were analyzed: diversified utilities; exploration and production; electric utilities; gas utilities; integrated oil and gas companies; refining and marketing; independent power producers; coal and consumable fuel companies and storage and transfer companies; The total combined revenue for the coal and consumable fuels sector was $74.7 billion. Leaders in this sector were: Yanzhou Coal Mining Co., CONSOl Energy Inc., Peabody Energy Corp., PT Bumi Resources Tbk, Cameco Corp., and Arch Coal. 14 tabs.

Mullen, T.; Leonard, M.

2005-12-01T23:59:59.000Z

229

Status of the DO top search  

Science Conference Proceedings (OSTI)

Preliminary new results on the top quark search with the DO experiment in {bar p}p collisions at {radical}s = 1.8 TeV for an integrated luminosity of 15.2 {plus_minus} 1.8 pb{sup {minus}1} are reported. In this new analysis, which is optimized for high mass top search, a total of seven candidate events in the electron and muon dilepton decay channels (t{bar t} {yields} e{mu}, ee and {mu}{mu}), single lepton decay channels (t{bar t} {yields} e + jets and t{bar t} {yields} {mu} + jets) without b tagging and single electron decay channel (t{bar t} {yields} e + jets) with b tagging have been observed. The estimated background is 4.7 {plus_minus} 1.0 events. If we assume the top quark has a mass of 180 GeV/c{sup 2}, a t{bar t} production cross section of 3.2 {plus_minus} 3.9 pb with upper limit of 13 pb at 95% C.L. is obtained.

Li-Demarteau, Q.; DO Collaboration

1994-09-01T23:59:59.000Z

230

Observation of Single Top Quark Production  

SciTech Connect

The author reports on the observation of electroweak production of single top quarks in p{bar p} collisions at {radical}s = 1.96 Tev using 2.3 fb{sup -1} of data collected with the D0 detector at the fermilab Tevatron Collider. Using events containing an isolated electron or muon, missing transverse energy, two, three or four jets, with one or two of them identified as originating from the fragmentation of a b quark, the measured cross section for the process p{bar p} {yields} tb + X, tqb + X is 3.94 {+-} 0.88 pb (for a top quark mass of 170 GeV). the probability to measure a cross section at this value or higher in the absence of signal is 2.5 x 10{sup -7}, corresponding to a 5.0 standard deviation significance. Using the same dataset, the measured cross sections for the t- and the s-channel processes when determined simultaneously with no assumption on their relative production rate are 3.14{sub -0.80}{sup +0.94} pb and 1.05 {+-} 0.81 pb respectively, consistent with standard model expectations. The measured t-channel cross section has a significance of 4.8 standard deviations, representing the first evidence for the production of an individual single top process to be detected.

Gerber, Cecilia E.; /Illinois U., Chicago

2009-09-01T23:59:59.000Z

231

Building Technologies Office: Building America's Top Innovations Advance  

NLE Websites -- All DOE Office Websites (Extended Search)

America's Top Innovations Advance High Performance Homes America's Top Innovations Advance High Performance Homes Building America Top Innovations. Recognizing top innovations in building science. Innovations sponsored by the U.S. Department of Energy's (DOE) Building America program and its teams of building science experts continue to have a transforming impact, leading our nation's home building industry to high-performance homes. Building America researchers have worked directly with more than 300 U.S. production home builders and have boosted the performance of more than 42,000 new homes. Learn more about Building America Top Innovations. 2013 Top Innovations New Top Innovations are awarded annually for outstanding Building America research achievements. Learn more about the 2013 Top Innovations recently awarded by selecting a category or award recipient below.

232

Vehicle Technologies Office: Fact #781: May 27, 2013 Top Ten...  

NLE Websites -- All DOE Office Websites (Extended Search)

1: May 27, 2013 Top Ten Natural Gas Producing Countries to someone by E-mail Share Vehicle Technologies Office: Fact 781: May 27, 2013 Top Ten Natural Gas Producing Countries on...

233

Vehicle Technologies Office: Fact #39: September 3, 1997 Top...  

NLE Websites -- All DOE Office Websites (Extended Search)

39: September 3, 1997 Top Reasons Why Consumers Would Not Buy a Diesel-Powered Vehicle to someone by E-mail Share Vehicle Technologies Office: Fact 39: September 3, 1997 Top...

234

Top Quark Properties at the TeVatron  

SciTech Connect

Discovered in 1995 by CDF and D0 at the Fermilab Tevatron collider, the top quark remains interesting to test the Standard Model. Having collected more than 7 fb{sup -1} of integrated luminosity with both experiments until today, several top quark properties have been measured with increasing precision, while other properties have been investigated for the first time. In this article recent measurements of top quark properties from CDF and D0 are presented, using between 1 fb{sup -1} and 4.8 fb{sup -1} of data. In particular, the measurement of the top quark mass, the top quark width, the top antitop mass difference, a check of the electric charge of the top quark, measurements of the top antitop quark spin correlation and W helicity as well as a search for charged Higgs bosons are discussed.

Peters, Yvonne

2011-03-01T23:59:59.000Z

235

Vehicle Technologies Office: Fact #117: February 21, 2000 Top...  

NLE Websites -- All DOE Office Websites (Extended Search)

7: February 21, 2000 Top Ten Fossil-Energy-Producing Nations: 1997 to someone by E-mail Share Vehicle Technologies Office: Fact 117: February 21, 2000 Top Ten...

236

Top 100 Oil and Gas Fields of 2008  

U.S. Energy Information Administration (EIA)

1 Top 100 Oil and Gas Fields of 2008 The Top 100 Oil and Gas Fields of 2008 ranks the United States’ largest oil and gas fields by their estimated

237

Satellite Television Industry Meeting Regarding DOE Set-Top Box...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Satellite Television Industry Meeting Regarding DOE Set-Top Box Rulemaking Satellite Television Industry Meeting Regarding DOE Set-Top Box Rulemaking On April 3, 2012 at 11:00 AM,...

238

NERSC's Hopper is Among World's Top 10 Fastest Computers  

NLE Websites -- All DOE Office Websites (Extended Search)

Hopper Among World's Top 10 Fastest Computers Hopper Among World's Top 10 Fastest Computers One of only 10 Petaflops Systems Worldwide June 17, 2011 | Tags: Hopper, NERSC Linda Vu,...

239

Stokes imaging of AM Her systems using 3D inhomogeneous models-II. Modelling X-ray and optical data of CP Tucanae  

E-Print Network (OSTI)

The viewing geometry of the polar CP Tuc that better explains its optical and X-ray light curves is controversial. Previous modelling of white-light polarimetric data considered the partial self-eclipse of an extended inhomogeneous emitting region. Alternatively, phase-dependent absorption has been used to reproduce the X-ray data. This paper presents new optical polarimetric data of CP Tuc and a model that consistently explains its optical and X-ray data. The model was based on an extension of the CYCLOPS code that added X-ray bremsstrahlung emission and pre-shock region absorption to the original version, which only accounted for cyclotron emission. The new code creates the possibility of simultaneous optical and X-ray fitting. We show that self-eclipse and absorption data have distinct signatures on the X-ray spectra. Although we were able to reasonably fit the CP Tuc optical data to cases of absorption and self-eclipse, we were only able to reproduce the X-ray orbital modulation after considering the abso...

Silva, K M G; Costa, J E R; de Souza, C A; Cieslinski, D; Hickel, G R

2013-01-01T23:59:59.000Z

240

Top 11 Things You Didn't Know About Nikola Tesla | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

1 Things You Didn't Know About Nikola Tesla 1 Things You Didn't Know About Nikola Tesla Top 11 Things You Didn't Know About Nikola Tesla November 18, 2013 - 1:48pm Addthis Nikola Tesla in or around 1890, when the inventor was in his mid-30s. | Photo is in the public domain. Image courtesy of the Library of Congress. Nikola Tesla in or around 1890, when the inventor was in his mid-30s. | Photo is in the public domain. Image courtesy of the Library of Congress. Marissa Newhall Marissa Newhall Managing Editor, Energy.gov Tesla vs. Edison Read the companion to this piece, Top 8 Things You Didn't Know About Thomas Alva Edison. Are you on #TeamTesla or #TeamEdison? Use hashtags on social media or vote on our website for your favorite inventor. Submit questions for Tesla and Edison experts to answer during our

Note: This page contains sample records for the topic "top optical images" 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

Fourth International Symposium on Recycling of Metals: Table Top ...  

Science Conference Proceedings (OSTI)

TMS Logo. Fourth International Symposium on Recycling of Metals: Table Top Exhibit. 2000 TMS FALL EXTRACTION AND PROCESS METALLURGY ...

242

Interactive optical panel  

DOE Patents (OSTI)

An interactive optical panel assembly 34 includes an optical panel 10 having a plurality of ribbon optical waveguides 12 stacked together with opposite ends thereof defining panel first and second faces 16, 18. A light source 20 provides an image beam 22 to the panel first face 16 for being channeled through the waveguides 12 and emitted from the panel second face 18 in the form of a viewable light image 24a. A remote device 38 produces a response beam 40 over a discrete selection area 36 of the panel second face 18 for being channeled through at least one of the waveguides 12 toward the panel first face 16. A light sensor 42,50 is disposed across a plurality of the waveguides 12 for detecting the response beam 40 therein for providing interactive capability.

Veligdan, James T. (Manorville, NY)

1995-10-03T23:59:59.000Z

243

Optical Radiation  

Science Conference Proceedings (OSTI)

*. Bookmark and Share. Optical Radiation Measurements. Fees for services are located directly below the technical contacts ...

2013-04-09T23:59:59.000Z

244

OPTICS5  

NLE Websites -- All DOE Office Websites (Extended Search)

Optics5 (5.1.02) Knowledge Base Optics5 (5.1.02) Knowledge Base Last Updated: 09/11/13 Table of Contents INSTALLATION EXECUTION bullet ** Operating Systems -- Microsoft Windows 7 and Vista ** bullet ** Running Optics5 with Microsoft Windows 7 and Vista ** bullet ** Running Optics5 with Microsoft Windows 7 and Vista 64 bit ** Optics5 may not work correctly with regional/locale settings using "," as a decimal separator. bullet Which Windows operating systems can be used to run Optics? "Class Does Not Support Automation or Expected Interface" error message bullet How much hard disk space should be available to install Optics? Optics user manual bullet I receive a virus warning (nimda-virus) when installing Optics. What should I do? NFRC Procedure for Applied Films bullet I have installed Optics but I can't find the program or the icon.

245

A Collaborative Table-top Platform . . .  

E-Print Network (OSTI)

Realistic traffic scenarios in driving simulators are a mandatory prerequisites for user studies on advanced driver assistance systems. A back-projection table-top environment in combination with miniature toy cars offers a new way for the creation of traffic scenarios with fine-grained human behavior. The system is linked to a driving simulator and enables direct experiencing. The platform also enables collaborative discussion and serves as a basis for new exploration principles where test subjects are taken in the development cycle. The paper illustrates the need for alternate traffic scenarios, introduces the new approach and the usage of the system. Areas of application together with new opportunities are then discussed.

Marcus Tönnis; Gudrun Klinker

2009-01-01T23:59:59.000Z

246

Challenge: mobile optical networks through visual MIMO  

Science Conference Proceedings (OSTI)

Mobile optical communications has so far largely been limited to short ranges of about ten meters, since the highly directional nature of optical transmissions would require costly mechanical steering mechanisms. Advances in CCD and CMOS imaging technology ... Keywords: computer vision, line of sight(los), optical communication, rf communication, visual mimo

Ashwin Ashok; Marco Gruteser; Narayan Mandayam; Jayant Silva; Michael Varga; Kristin Dana

2010-09-01T23:59:59.000Z

247

Stereoscopic optical viewing system  

DOE Patents (OSTI)

An improved optical system which provides the operator with a stereoscopic viewing field and depth of vision, particularly suitable for use in various machines such as electron or laser beam welding and drilling machines. The system features two separate but independently controlled optical viewing assemblies from the eyepiece to a spot directly above the working surface. Each optical assembly comprises a combination of eye pieces, turning prisms, telephoto lenses for providing magnification, achromatic imaging relay lenses and final stage pentagonal turning prisms. Adjustment for variations in distance from the turning prisms to the workpiece, necessitated by varying part sizes and configurations and by the operator's visual accuity, is provided separately for each optical assembly by means of separate manual controls at the operator console or within easy reach of the operator.

Tallman, C.S.

1986-05-02T23:59:59.000Z

248

Collider Detector at Fermilab (CDF): Data from the Top Group's Top Quark Research  

DOE Data Explorer (OSTI)

The Collider Detector at Fermilab (CDF) is a Tevatron experiment at Fermilab. The Tevatron, a powerful particle accelerator, accelerates protons and antiprotons close to the speed of light, and then makes them collide head-on inside the CDF detector. The CDF detector is used to study the products of such collisions. The CDF Physics Group at Fermilab is organized into six working groups, each with a specific focus. The Top group studies the properties of the top quark, the heaviest known fundamental particle. Their public web page makes data and numerous figures available from both CDF Runs I and II.

249

Searches for New Physics in Top Decays at D0  

Science Conference Proceedings (OSTI)

The Tevatron proton-antiproton collider at Fermilab with its centre of mass energy of 1.96 TeV allows for pair production of top quarks and the study of top quark decay properties. This report reflects the current status of measurements of the W boson helicity in top quark decays and the ratio of top quark branching fractions as well as searches for neutral current top quark decays and pair production of fourth generation t' quarks, performed by the D0 Collaboration utilising datasets of up to 5.4 fb{sup -1}.

Pleier, Marc-Andre; /Brookhaven

2011-08-01T23:59:59.000Z

250

Top Quark Production and Properties at the Tevatron  

E-Print Network (OSTI)

The precise measurement of top quark production and properties is one of the primary goals of the Tevatron during Run II. The total top-antitop production cross-section has been measured in a large variety of decay channels and using different selection criteria. Results from differential cross-section measurements and searches for new physics in top-antitop production and top quark decays are available. Electroweak production of single top quarks has been searched for. The results from all these analyses, using typically 200/pb of data, are presented.

Frank Fiedler; for the D0; CDF Collaborations

2005-06-02T23:59:59.000Z

251

Thermionic energy conversion (TEC) topping thermoelectrics  

DOE Green Energy (OSTI)

Long-respected international experts on thermoelectrics (Dixon, Ertl and Goldsmid supported by Ure) determine the probable maximum figure of merit (ZT) for fully matured thermoelectric generators as about unity from ordiary temperatures to 2000 K. Thus the maximum efficiency for fully matured thermoelectrics would be approximately 0.414 (l - r/sub T/)/(1.414 + r/sub T/) where r/sub T/ is the ratio of cold and hot junction temperatures. This limitation contrasts with the recent burst of enthusiasm for high-temperature thermoelectrics - based on calculated figures of merit and efficiencies that increase more and more rapidly with rising temperatures. Unfortunately these calculations neglect internal radiation effects which diminish thermoelectric figures of merit significantly at 1000 K and substantially at 2000 K: The effective thermal-conductivity contribution of intrathermoelectric radiative dissipation increases with the third power of temperature. Therefore the quotation from Thermoelectricy: Science and Engineering by Heikes and Ure apparently still prevails: ...thermoelectric devices appear difficult to extend in the direction of high temperature, while thermionic devices become inefficient at low temperature. Accordingly consideration of thermoelectric power generation with high-temperature heat sources should include utilization of TEC topping thermoelectrics. However TEC alone or TEC topping more-efficient conversion systems like steam or gas turbines, combined cycles or Stirling engines would be more desirable generally.

Morris, J.F.

1981-01-01T23:59:59.000Z

252

The Top Quark, Its Discovery, and Subsequent Research  

Office of Scientific and Technical Information (OSTI)

The Top Quark, Its Discovery, and Subsequent Research The Top Quark, Its Discovery, and Subsequent Research Resources with Additional Information 'Ever since the existence of the bottom (or b) quark was inferred from the discovery of the Upsilon family of resonances at Fermilab in 1977, particle physicists have been on the lookout for its partner, called top (or t). The long search, which occupied experimenters at laboratories around the world, came to a successful conclusion in February 1995 with the announcement that the top quark had been observed in two experiments at the Tevatron proton-antiproton collider at Fermilab. ... Top Quark Courtesy Fermilab Top is the last of the fundamental constituents of subnuclear matter that theories of the strong, weak, and electromagnetic interactions and a wealth of experimental information had led particle physicists to expect. Theoretically, top's existence was required to make the electroweak theory internally consistent.'1

253

Fuel Cell Technologies Office: America's Next Top Energy Innovator  

NLE Websites -- All DOE Office Websites (Extended Search)

America's Next Top America's Next Top Energy Innovator Runner-Up Presents Hydrogen Detection Technologies (Text Version) to someone by E-mail Share Fuel Cell Technologies Office: America's Next Top Energy Innovator Runner-Up Presents Hydrogen Detection Technologies (Text Version) on Facebook Tweet about Fuel Cell Technologies Office: America's Next Top Energy Innovator Runner-Up Presents Hydrogen Detection Technologies (Text Version) on Twitter Bookmark Fuel Cell Technologies Office: America's Next Top Energy Innovator Runner-Up Presents Hydrogen Detection Technologies (Text Version) on Google Bookmark Fuel Cell Technologies Office: America's Next Top Energy Innovator Runner-Up Presents Hydrogen Detection Technologies (Text Version) on Delicious Rank Fuel Cell Technologies Office: America's Next Top Energy

254

Vehicle Technologies Office: Fact #629: June 28, 2010 Top Ten  

NLE Websites -- All DOE Office Websites (Extended Search)

9: June 28, 2010 9: June 28, 2010 Top Ten Misconceptions about Fuel Economy to someone by E-mail Share Vehicle Technologies Office: Fact #629: June 28, 2010 Top Ten Misconceptions about Fuel Economy on Facebook Tweet about Vehicle Technologies Office: Fact #629: June 28, 2010 Top Ten Misconceptions about Fuel Economy on Twitter Bookmark Vehicle Technologies Office: Fact #629: June 28, 2010 Top Ten Misconceptions about Fuel Economy on Google Bookmark Vehicle Technologies Office: Fact #629: June 28, 2010 Top Ten Misconceptions about Fuel Economy on Delicious Rank Vehicle Technologies Office: Fact #629: June 28, 2010 Top Ten Misconceptions about Fuel Economy on Digg Find More places to share Vehicle Technologies Office: Fact #629: June 28, 2010 Top Ten Misconceptions about Fuel Economy on AddThis.com...

255

Vehicle Technologies Office: Fact #711: January 23, 2012 Top Vehicles  

NLE Websites -- All DOE Office Websites (Extended Search)

1: January 23, 1: January 23, 2012 Top Vehicles around the Globe, 2011 to someone by E-mail Share Vehicle Technologies Office: Fact #711: January 23, 2012 Top Vehicles around the Globe, 2011 on Facebook Tweet about Vehicle Technologies Office: Fact #711: January 23, 2012 Top Vehicles around the Globe, 2011 on Twitter Bookmark Vehicle Technologies Office: Fact #711: January 23, 2012 Top Vehicles around the Globe, 2011 on Google Bookmark Vehicle Technologies Office: Fact #711: January 23, 2012 Top Vehicles around the Globe, 2011 on Delicious Rank Vehicle Technologies Office: Fact #711: January 23, 2012 Top Vehicles around the Globe, 2011 on Digg Find More places to share Vehicle Technologies Office: Fact #711: January 23, 2012 Top Vehicles around the Globe, 2011 on AddThis.com...

256

Vehicle Technologies Office: Fact #733: June 25, 2012 World's Top  

NLE Websites -- All DOE Office Websites (Extended Search)

3: June 25, 2012 3: June 25, 2012 World's Top Petroleum-Producing Countries to someone by E-mail Share Vehicle Technologies Office: Fact #733: June 25, 2012 World's Top Petroleum-Producing Countries on Facebook Tweet about Vehicle Technologies Office: Fact #733: June 25, 2012 World's Top Petroleum-Producing Countries on Twitter Bookmark Vehicle Technologies Office: Fact #733: June 25, 2012 World's Top Petroleum-Producing Countries on Google Bookmark Vehicle Technologies Office: Fact #733: June 25, 2012 World's Top Petroleum-Producing Countries on Delicious Rank Vehicle Technologies Office: Fact #733: June 25, 2012 World's Top Petroleum-Producing Countries on Digg Find More places to share Vehicle Technologies Office: Fact #733: June 25, 2012 World's Top Petroleum-Producing Countries on AddThis.com...

257

Summary of the session on the top quark  

Science Conference Proceedings (OSTI)

The CDF and D0 experiments at the Fermilab Tevatron showed recent results on the production and properties of the top quark. The CMS and ATLAS experiments presented first observations of top events at the LHC. Prospects for the top physics at the LHC over the next few years were discussed. CDF and D0 have made remarkable progress in detemerining the properties of the top quark, which so far, conforms to the expectations of the SM. The sophisticated methods they have developed form the basis of the exploration that is now starting at the LHC. New methods, such as the use of boosted top quark signatures, will be necessary to realize fully the potential of the LHC for finding new high mass particles decaying to top and for searching for deviations from the SM. Prospects for the future of top quark physics are very bright.

Butler, Joel N.; /Fermilab

2011-01-01T23:59:59.000Z

258

Video image position determination  

DOE Patents (OSTI)

The present invention generally relates to the control of video and optical information and, more specifically, to control systems utilizing video images to provide control. Accurate control of video images and laser beams is becoming increasingly important as the use of lasers for machine, medical and experimental processes escalates. In, AURORA, an installation at Los Alamos National Laboratory dedicated to laser fusion research, it is necessary to precisely control the path and angle of up to 96 lasers beams. This invention is comprised of an optical beam position controller in which a video camera captures an image of the beam in its video frames, and conveys those images to a processing board which calculates the centroid coordinates for the image. The image coordinates are used by motor controllers and stepper motors to position the beam in a predetermined alignment. In one embodiment, system noise, used in conjunction with Bernoulli trials, yields higher resolution centroid coordinates.

Christensen, W.; Anderson, F.L.; Kortegaard, B.L.

1990-01-01T23:59:59.000Z

259

Video image position determination  

DOE Patents (OSTI)

The present invention generally relates to the control of video and optical information and, more specifically, to control systems utilizing video images to provide control. Accurate control of video images and laser beams is becoming increasingly important as the use of lasers for machine, medical and experimental processes escalates. In, AURORA, an installation at Los Alamos National Laboratory dedicated to laser fusion research, it is necessary to precisely control the path and angle of up to 96 lasers beams. This invention is comprised of an optical beam position controller in which a video camera captures an image of the beam in its video frames, and conveys those images to a processing board which calculates the centroid coordinates for the image. The image coordinates are used by motor controllers and stepper motors to position the beam in a predetermined alignment. In one embodiment, system noise, used in conjunction with Bernoulli trials, yields higher resolution centroid coordinates.

Christensen, W.; Anderson, F.L.; Kortegaard, B.L.

1990-12-31T23:59:59.000Z

260

Table-top SEM: Hitachi TM-1000  

Science Conference Proceedings (OSTI)

... use, depth of focus, auto image adjustment and speed (3 min. set-up time). Specifications / Capabilities: Mag: 20-10,000x; Accel. voltage: 15kV; Max ...

2010-10-05T23:59:59.000Z

Note: This page contains sample records for the topic "top optical images" 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

[Place at top of Part I]  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

inserting in the FOA template are in blue. inserting in the FOA template are in blue. [Place at top of Part I - FUNDING OPPORTUNITY DESCRIPTION] Projects under this FOA will be funded, in whole or in part, with funds appropriated by the American Recovery and Reinvestment Act of 2009, Pub. L. 111-5, (Recovery Act or Act). The Recovery Act's purposes are to stimulate the economy and to create and retain jobs. The Act gives preference to activities that can be started and completed expeditiously, including a goal of using at least 50 percent of the funds made available by it for activities that can be initiated not later than June 17, 2009. Accordingly, special consideration will be given to projects that promote and enhance the objectives of the Act, especially job creation, preservation and

262

Top Crop Wind Farm | Open Energy Information  

Open Energy Info (EERE)

Crop Wind Farm Crop Wind Farm Facility Top Crop Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Horizon-EDPR Developer Horizon-EDPR Location Grundy/Livingston/La Salle Counties IL Coordinates 41.159826°, -88.637381° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.159826,"lon":-88.637381,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

263

Top 10 Water Dos and Donts  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

WATER SAVERS WATER SAVERS Francis Wheeler (713) 504-6684 fwheeler@thewater-savers.com Why Worry About Water Humanity's Top Ten Problems for next 50 years 1. ENERGY 2. WATER 3. FOOD 4. ENVIRONMENT 5. POVERTY 6. TERRORISM & WAR 7. DISEASE 8. EDUCATION 9. DEMOCRACY 10. POPULATION 2004 6.5 Billion People 2050 ~ 10 Billion People DON'T DON'T irrigate during or 12 hours before or after a rain event DON'T allow your irrigation systems to go without maintenance DON'T waste mother natures free/provided resources (FRESH CLEAN WATER) DON'T utilize bleeding edge technology that is not proven and/or that is a life cycle cost loser (NO BLACK BOXES) DON'T DON'T Over do it on plumbing retrofits DON'T Forget to do a water balance DON'T Forget to review billing

264

Platts top 250 global energy company rankings  

Science Conference Proceedings (OSTI)

The third annual survey of global energy companies measures companies' financial performance using four metrics: asset worth, revenues, profits and return on invested capital. The following industry segments were analysed: coal and consumable fuel companies; diversified utilities; exploration and production; electric utilities; gas utilities; integrated oil and gas companies; refining and marketing; independent power producers and storage and transfer companies. Integrated oil and gas companies (IOGs) captured nine out of the top ten spots while IPPS struggled in 2005 as the sector on a whole lost money. The exploration and production segment showed financial stability while gas utilities saw their financials climb. The Exxon Mobile Corp. continued its reign of the number one spot.

NONE

2006-11-15T23:59:59.000Z

265

Full spectrum optical safeguard  

SciTech Connect

An optical safeguard device with two linear variable Fabry-Perot filters aligned relative to a light source with at least one of the filters having a nonlinear dielectric constant material such that, when a light source produces a sufficiently high intensity light, the light alters the characteristics of the nonlinear dielectric constant material to reduce the intensity of light impacting a connected optical sensor. The device can be incorporated into an imaging system on a moving platform, such as an aircraft or satellite.

Ackerman, Mark R. (Albuquerque, NM)

2008-12-02T23:59:59.000Z

266

Solid state optical microscope  

DOE Patents (OSTI)

A solid state optical microscope wherein wide-field and high-resolution images of an object are produced at a rapid rate by utilizing conventional optics with a charge-coupled photodiode array. A galvanometer scanning mirror, for scanning in one of two orthogonal directions is provided, while the charge-coupled photodiode array scans in the other orthogonal direction. Illumination light from the object is incident upon the photodiodes, creating packets of electrons (signals) which are representative of the illuminated object. The signals are then processed, stored in a memory, and finally displayed as a video signal. 2 figs.

Young, I.T.

1983-08-09T23:59:59.000Z

267

Solid state optical microscope  

DOE Patents (OSTI)

A solid state optical microscope wherein wide-field and high-resolution images of an object are produced at a rapid rate by utilizing conventional optics with a charge-coupled photodiode array. A galvanometer scanning mirror, for scanning in one of two orthogonal directions is provided, while the charge-coupled photodiode array scans in the other orthogonal direction. Illumination light from the object is incident upon the photodiodes, creating packets of electrons (signals) which are representative of the illuminated object. The signals are then processed, stored in a memory, and finally displayed as a video signal.

Young, Ian T. (Pleasanton, CA)

1983-01-01T23:59:59.000Z

268

Elemental and magnetic sensitive imaging using x-ray excited luminescence microscopy  

Science Conference Proceedings (OSTI)

We demonstrate the potential of x-ray excited luminescence microscopy for full-field elemental and magnetic sensitive imaging using a commercially available optical microscope, mounted on preexisting synchrotron radiation (SR) beamline end stations. The principal components of the instrument will be described. Bench top measurements indicate that a resolution of 1 {mu}m or better is possible; this value was degraded in practice due to vibrations and/or drift in the end station and associated manipulator. X-ray energy dependent measurements performed on model solar cell materials and lithographically patterned magnetic thin film structures reveal clear elemental and magnetic signatures. The merits of the apparatus will be discussed in terms of conventional SR imaging techniques.

Rosenberg, R. A.; Zohar, S.; Keavney, D. [Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439 (United States); Divan, R.; Rosenmann, D. [Center for Nanoscale Materials, Argonne National Laboratory, Argonne, Illinois 60439 (United States); Mascarenhas, A.; Steiner, M. A. [National Renewable Energy Lab, Golden, Colorado 80401 (United States)

2012-07-15T23:59:59.000Z

269

Slit-scanning confocal microendoscope for high-resolution in vivo imaging  

E-Print Network (OSTI)

and construction of a novel imaging system in which a fiber-optic imaging bundle and miniature optical face of the fiber-optic imaging bundle. In this system an argon- ion laser operating at 488 nm is used bundle is the object for this optical system. The light coming from the bun- dle is collimated

Gmitro, Arthur F.

270

LANL announces top 10 science stories of 2009  

NLE Websites -- All DOE Office Websites (Extended Search)

Top 10 science stories of 2009 Top 10 science stories of 2009 LANL announces top 10 science stories of 2009 Top 10 Laboratory science stories of 2009 based on global viewership of online media content and major programmatic milestones. January 8, 2010 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Contact Communications Office

271

Angular correlations in top quark decays in standard model extensions  

SciTech Connect

The CMS Collaboration at the CERN LHC has searched for the t-channel single top quark production using the spin correlation of the t-channel. The signal extraction and cross section measurement rely on the angular distribution of the charged lepton in the top quark decays, the angle between the charged lepton momentum and top spin in the top rest frame. The behavior of the angular distribution is a distinct slope for the t-channel single top (signal) while it is flat for the backgrounds. In this Brief Report, we investigate the contributions which this spin correlation may receive from a two-Higgs doublet model, a top-color assisted technicolor (TC2) and the noncommutative extension of the standard model.

Batebi, S. [Science and Research Branch, Islamic Azad University (IAU), Tehran (Iran, Islamic Republic of); Etesami, S. M. [School of Particles and Accelerators, Institute for Research in Fundamental Sciences (IPM), P.O. Box 19395-5531, Tehran (Iran, Islamic Republic of); Physics Department, Isfahan University of Technology (IUT), P.O. Box 11365-9161, Isfahan (Iran, Islamic Republic of); Mohammadi-Najafabadi, M. [Physics Department, Isfahan University of Technology (IUT), P.O. Box 11365-9161, Isfahan (Iran, Islamic Republic of)

2011-03-01T23:59:59.000Z

272

Kinematics of Top Quark Final States: A Snowmass White Paper  

E-Print Network (OSTI)

This is the summary report of the Top Quark Kinematics working group prepared for Snowmass 2013. We survey the current state of theoretical predictions for top pair differential distributions, in both boosted and un-boosted regimes, and present an overview of uncertainties and prospects for top spin correlations. We study the prospects for measuring the inclusive SM top pair production asymmetry AFC at LHC 14 as a function of systematic error, and show that some improvement over current systematic uncertainties, as customarily handled, is required for observing a SM-size asymmetry. Cuts on top pair invariant mass and rapidity do not substantially alter this conclusion. We summarize the conclusions of contributed studies on alternate LHC measurements of the ttbar production asymmetry, in ttbar+jet final states and in forward top production at LHCb, both of which show good prospects for observing SM-size asymmetries in 50 fb-1 of data at LHC14.

Andreas Jung; Markus Schulze; Jessie Shelton

2013-09-11T23:59:59.000Z

273

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... Image Gallery : Image Details. 72 DPI Image 150 DPI Image No 300 DPI Version. Title: Frequency Comb, Ultrafast Laser. ...

274

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... Image Gallery : Image Details. 72 DPI Image 150 DPI Image No 300 DPI Version. Title: Iron-Based Superconductors. Description ...

275

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... Image Gallery : Image Details. 72 DPI Image 150 DPI Image No 300 DPI Version. Title: Space Weather Forecasts. Description ...

276

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... Image Gallery : Image Details. 72 DPI Image 150 DPI Image No 300 DPI Version. Title: Organic Solar Power. Description ...

277

Detecting Chiral Edge States in the Hofstadter Optical Lattice  

E-Print Network (OSTI)

We propose a realistic scheme to detect topological edge states in an optical lattice subjected to a synthetic magnetic field, based on a generalization of Bragg spectroscopy sensitive to angular momentum. We demonstrate that using a well-designed laser probe, the Bragg spectra provide an unambiguous signature of the topological edge states that establishes their chiral nature. This signature is present for a variety of boundaries, from a hard wall to a smooth harmonic potential added on top of the optical lattice. Experimentally, the Bragg signal should be very weak. To make it detectable, we introduce a "shelving method", based on Raman transitions, which transfers angular momentum and changes the internal atomic state simultaneously. This scheme allows to detect the weak signal from the selected edge states on a dark background, and drastically improves the detectivity. It also leads to the possibility to directly visualize the topological edge states, using in situ imaging, offering a unique and instructive view on topological insulating phases.

Nathan Goldman; Jerome Beugnon; Fabrice Gerbier

2012-03-06T23:59:59.000Z

278

Optical antenna design for indoor optical wireless communication systems: Research Articles  

Science Conference Proceedings (OSTI)

In the present paper, the design of the non-imaging totally internally reflecting concentrator family denominated optical antennas (OAs) is discussed, and its use for indoor optical wireless communication systems is explained. The lenses presented here ... Keywords: antenna, communications, indoor, infrared, optical, wireless

R. Ramirez-Iniguez; R. J. Green

2005-04-01T23:59:59.000Z

279

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... 72 DPI Image © 150 DPI Image © 300 DPI Image ©. Title: Nanotechnology; Biotechnology/Health; Nanocrystals; Hwang. ...

280

Crude Oil and Total Petroleum Imports Top 15 Countries  

U.S. Energy Information Administration (EIA)

The top five exporting countries accounted for 69 percent of United States crude oil imports in ... exporting 2,829 thousand barrels per day to the ...

Note: This page contains sample records for the topic "top optical images" 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

Single top quark production and Vtb at the Tevatron  

SciTech Connect

Single top quark production via the electroweak interaction was observed by the D0 and CDF collaborations at the Tevatron proton-antiproton collider at Fermilab. Multivariate analysis techniques are employed to extract the small single top quark signal. The combined Tevatron cross section is 2.76{sub -0.47}{sup +0.58} pb. This corresponds to a lower limit on the CKM matrix element |V{sub tb}| of 0.77. Also reported are measurements of the t-channel cross section, the top quark polarization in single top quark events, and limits on gluon-quark flavor-changing neutral currents and W{prime} boson production.

Schwienhorst, Reinhard; /Michigan State U.

2010-09-01T23:59:59.000Z

282

Studies of top quark properties at the Tevatron  

Science Conference Proceedings (OSTI)

An overview of the recent measurements of the top quark properties in proton antiproton collisions at {radical}s = 1.96 TeV is presented. These measurements are based on 5.4-8.7 fb{sup -1} of data collected with the D0 and CDF experiments at the Fermilab Tevatron collider. The top quark mass and width measurements, studies of the spin correlation in top quark pair production, W boson helicity measurement, searches for anomalous top quark couplings and Lorentz invariance violation are discussed.

Shary, Viatcheslav

2012-05-01T23:59:59.000Z

283

Measurements of Top Quark Properties at the Tevatron  

SciTech Connect

The top quark is the most recently discovered of the standard model quarks, and studies of its properties are important tests of the standard model. Many measurements of top properties have been produced by the CDF and D0 collaborations, which study top quarks produced in p{bar p} collisions at the Fermilab Tevatron with a center-of-mass energy {radical}s = 1.96 TeV. We describe recent results from top properties measurements at the Tevatron using datasets corresponding to integrated luminosities up to 8.7 fb{sup -1}.

Mietlicki, David J.; /Michigan U.

2012-04-01T23:59:59.000Z

284

Looking for the Top Quark - Lab Pages - My Quarks  

NLE Websites -- All DOE Office Websites (Extended Search)

Teacher Overview VA State Standards of Learning Download this Activity Next Page Looking for the Top Quark - Lab Pages - My Quarks...

285

Beyond auditions: gender discrimination in America's top orchestras.  

E-Print Network (OSTI)

?? Although women have slowly been accepted in America's top orchestras, they are still a minority. Certain instrument sections remain predominantly male in spite of… (more)

Phelps, Amy Louise

2010-01-01T23:59:59.000Z

286

Top 100 Oil and Gas Fields of 2009  

U.S. Energy Information Administration (EIA)

Top 100 Oil and Gas Fields of 2009 ... The peak oil discovery decade reflects the 1967 discovery of Alaska’s Prudhoe Bay Field. The gas discoveries ...

287

Building America Top Innovations 2013 Profile - Buried and Encapsulate...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Top Innovations 2013 Profile - Buried and Encapsulated Ducts CARB research shows HVAC ducts that are encapsulated in closed-cell spray foam and buried in blown insulation in...

288

Building America Top Innovations Hall of Fame Profile - Integration...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Integration of HVAC System Design with Simplified Duct Distribution Building America Top Innovations Hall of Fame Profile - Integration of HVAC System Design with Simplified Duct...

289

TOP 10 VULNERABILITIES OF CONTROL SYSTEMS AND THEIR ASSOCIATED...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

TOP 10 VULNERABILITIES OF CONTROL SYSTEMS AND THEIR ASSOCIATED MITIGATIONS Introduction SCADA Security for Managers and Operators Intermediate SCADA Security Training Course Slides...

290

America's Next Top Innovator: Lab Tech for Startups  

Energy.gov (U.S. Department of Energy (DOE))

Read about America’s Next Top Energy Innovator -- a program making it easier for startups to use inventions and technology developed at DOE labs and facilities.

291

Weekly Preliminary Crude Imports by Top 10 Countries of Origin ...  

U.S. Energy Information Administration (EIA)

Weekly Preliminary Crude Imports by Top 10 Countries of Origin (based on 2012 Petroleum Supply Monthly data) (Thousand Barrels per Day)

292

Professional Preface, 3 (6): Top Ten Things to Do  

Science Conference Proceedings (OSTI)

With 66 attractions, including the world's most renowned theme parks, and 3,000 restaurants, Orlando is one of the top tourist destinations in the world.

293

Los Alamos National Laboratory announces top 10 science stories...  

NLE Websites -- All DOE Office Websites (Extended Search)

Los Alamos National Laboratory announces top 10 science stories of 2011 Stories include alternative energy research, magnetic fields, disease tracking, the study of Mars, climate...

294

Top 5 producing states' combined marketed natural gas output rose ...  

U.S. Energy Information Administration (EIA)

Combined marketed natural gas production from the top five natural gas producing states—Texas, Louisiana, Wyoming, Oklahoma, and Colorado—increased by about 7.5% ...

295

Top 100 Operators: Proved Reserves and Production, Operated vs ...  

U.S. Energy Information Administration (EIA)

Top 100 Operators: Proved Reserves and Production, Operated vs Owned, 2008 . The operator of an oil or gas field is the company responsible for the field’s ...

296

Vehicle Technologies Program: Goals, Strategies, and Top Accomplishmen...  

NLE Websites -- All DOE Office Websites (Extended Search)

Technologies Program: Goals, Strategies, and Top Accomplishments Chevy Volt plug-in hybrid electric vehicle. Courtesy of Wieck Media Services Key Goals Hybrid Electric...

297

KCP hosts top STEM educators to develop curriculum | National...  

NLE Websites -- All DOE Office Websites (Extended Search)

educators to develop curriculum Posted By Office of Public Affairs NNSA Blog The Kansas City Plant recently hosted top STEM educators from Historically Black Colleges and...

298

Building America Top Innovations Hall of Fame Profile - Building...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Science-Based Climate Maps Building America Top Innovations Hall of Fame Profile - Building Science-Based Climate Maps 43abainnovbuildingscienceclimatemaps...

299

Building America Top Innovations 2013 Profile - Building America...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Center Building America Top Innovations 2013 Profile - Building America Solution Center PNNL set up the framework for the Building America Solution Center, a web tool connecting...

300

Kinematical evidence for top pairs at the Tevatron  

SciTech Connect

We present a top search analysis of W+jet events which combines a study of the kinematic features of the events with a search for bottom quarks.

Grassmann, H. [Fermi National Accelerator Lab., Batavia, IL (United States)]|[Duke Univ., Durham, NC (United States); CDF Collaboration

1994-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "top optical images" 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

Secretary Chu Announces Second Round of "America's Next Top Energy...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

a second year of "America's Next Top Energy Innovator," a program that allows startup companies to license groundbreaking technologies developed by DOE's 17 national laboratories...

302

Building America Top Innovations 2013 Profile - Exterior Rigid...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Exterior Rigid Insulation Best Practices Building America Top Innovations 2013 Profile - Exterior Rigid Insulation Best Practices Field and lab studies by BSC, PHI, and Northern...

303

Building America Top Innovations Hall of Fame Profile - Basement...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Basement Insulation Systems Building America Top Innovations Hall of Fame Profile - Basement Insulation Systems This Building America Innovations profile describes Building America...

304

Search for a heavy top t' to Wq in top events  

SciTech Connect

We present a search for a massive quark (t{prime}) decaying to Wq and thus mimicking the top quark decay signature in data collected by the CDF II detector corresponding to 2.8 fb{sup -1}. We use the reconstructed mass of the t{prime} quark and the scalar sum of the transverse energies in the event to discriminate possible new physics from Standard Model processes, and set limits on a standard 4th generation t{prime} quark.

Cox, David

2009-10-01T23:59:59.000Z

305

Large area 3-D reconstructions from underwater optical surveys  

E-Print Network (OSTI)

Robotic underwater vehicles are regularly performing vast optical surveys of the ocean floor. Scientists value these surveys since optical images offer high levels of detail and are easily interpreted by humans. Unfortunately, ...

Singh, Hanumant

306

Optics Supply Planning System  

Science Conference Proceedings (OSTI)

The purpose of this study is to specify the design for an initial optics supply planning system for NIF, and to present quality assurance and test plans for the construction of the system as specified. The National Ignition Facility (NIF) is a large laser facility that is just starting operations. Thousands of specialized optics are required to operate the laser, and must be exchanged over time based on the laser shot plan and predictions of damage. Careful planning and tracking of optic exchanges is necessary because of the tight inventory of spare optics, and the long lead times for optics procurements and production changes. Automated inventory forecasting and production planning tools are required to replace existing manual processes. The optics groups members who are expected to use the supply planning system are the stakeholders for this project, and are divided into three groups. Each of these groups participated in a requirements specification that was used to develop this design. (1) Optics Management--These are the top level stakeholdersk, and the final decision makers. This group is the interface to shot operations, is ultimately responsible for optics supply, and decides which exchanges will be made. (2) Work Center Managers--This group manages the on site optics processing work centers. They schedule the daily work center operations, and are responsible for developing long term processing, equipment, and staffing plans. (3) Component Engineers--This group manages the vendor contracts for the manufacture of new optics and the off site rework of existing optics. They are responsible for sourcing vendors, negotiating contracts, and managing vendor processes. The scope of this analysis is to describe the structure and design details of a system that will meet all requirements that were described by stakeholders and documented in the analysis model for this project. The design specifies the architecture, components, interfaces, and data stores of the system at a level of detail that can be used for construction and deployment. Test and quality assurance plans are also included to insure that the system delivers all requirements when it is built. The design is for an automated forecasting prototype that allocates inventory and processing resources in response to potentially daily changes in the forecasted optics exchanges required to operate NIF. It will automatically calculate future inventory levels and processing rates based on current inventory and projected exchanges, procurements, and capacities. It will include screens that allow users to readily assess the feasibility of the forecast, identify failures to meet the demand, revise input data, and re-run the automated forecast calculation. In addition, the system will automatically retrieve the current exchange demand from an external database. Approved forecasts from the system will automatically update work order plans and procurement plans in the existing inventory and production control database. The timing of optics exchanges affects the forecast of damage and future exchanges, so an approved exchange plan will be fed back to the demand database and be used to calculate the next demand projection. The system will read the demand data and update the forecast and output files daily. This specification has been divided into two parts. This document, Part 1 lays out the major design decisions and specifies the architectural, component, and data structure designs. Part 2 will add interface designs, quality assurance and testing plans, and deployment details.

Gaylord, J

2009-04-30T23:59:59.000Z

307

Manzano High School student wins top award in 22nd New Mexico  

NLE Websites -- All DOE Office Websites (Extended Search)

Manzano High School student wins Supercomputing Challenge Manzano High School student wins Supercomputing Challenge Manzano student wins top award in 22nd New Mexico Supercomputing Challenge Jordan Medlock wins for his computer algorithm. April 24, 2012 Jordan Medlock Jordan Medlock Contact Steve Sandoval Communications Office (505) 665-9206 Email LOS ALAMOS, New Mexico, April 24, 2012-Jordan Medlock of Albuquerque's Manzano High School took the top prize in the 22nd New Mexico Supercomputing Challenge for his computer algorithm that automates the process of counting and analyzing plaques in magnetic resonance images of persons diagnosed with Alzheimer's disease. The program vastly speeds up the process of identifying the very small and difficult to see plaques. For his project, "Detection of Alzheimer's Disease Plaques in a

308

Comparison of Cirrus Height and Optical Depth Derived from Satellite and Aircraft Measurements  

Science Conference Proceedings (OSTI)

During the International Cirrus Experiment (ICE'89) simultaneous measurements of Cirrus cloud-top height and optical depth by satellite and aircraft have been taken. Data from the Advanced Very High Resolution Radiometer (AVHRR) onboard the NOAA ...

M. Kästner; K. T. Kriebel; R. Meerkötter; W. Renger; G. H. Ruppersberg; P. Wendling

1993-10-01T23:59:59.000Z

309

Optical Learning Chip  

E-Print Network (OSTI)

A novel type of an optical neurochip with learning capability and memory function is reported. The neurochip is a three dimensional optoelectronic integrated circuit consisting of a light emitting diode array and a variable sensitivity photodetector (VSPD) array. The principle of operation and the fundamental characteristics are described. By using the fabricated optical neurochip with 32 neurons and 32\\Theta32 synapses, experiments of on-chip learning based on the backpropagation and Boltzmann machine learning algorithms have successfully been demonstrated. INTRODUCTION Optoelectronics is expected to play an important role in hardware implementation of neural networks because of its innate parallelism, high-density interconnection, and direct image processing abilities [1]. This summary describes an optical learning chip with variable synaptic interconnections developed in our laboratory. This chip enables to perform on-chip learning by using an internal analog memory function. Firs...

Jun Ohta Yoshikazu; Jun Ohta; Yoshikazu Nitta; Kazuo Kyuma

1994-01-01T23:59:59.000Z

310

Gas from the top of the barrel  

SciTech Connect

Refining management has recently entailed a search for that special niche in all the refinery process options that will make the overall operation profitable in the face of increasing impact of environmental regulation, decreasing demand through conservation, and variations in crude oil pricing. One such niche, bottom of the barrel processing, was attractive enough to result in major new and revamp projects which have contributed positively to direct refinery cost economics but not significantly to profitability. Today, proposed regulations reducing gasoline vapor pressure and forecasts of excess LPG supplies suggest that the other end of the barrel - the top - should be considered. Conventional uses of LPG in home heating and cooling, as petrochemical feedstocks, in gasoline blending, and, in limited amounts, as transportation fuels are well, or over, served. At the same time, recovery of LPG's from gas and refinery processing is increasing the supply. Those C/sub 3/-C/sub 4/ paraffin hydrocarbons can be converted economically to transportation fuels.

Andre, R.S.; Clark, R.G.; Craig, R.G.; Dufallo, J.M.

1988-01-01T23:59:59.000Z

311

Sensitive interferometric video thermal wave imager  

Science Conference Proceedings (OSTI)

A new method of parallel thermal wave imaging is demonstrated in which the thermal wave image of a heated sample is converted into an optical phase image which is sensitively probed by a Twyman–Green interferometer. The sample is mounted onto an assembly of optical layers which acts as a temperature sensitive mirror.Heat conduction from the sample to this mirror results in a two?dimensional distribution of optical phase which is probed broadfield by the interferometer. The resulting transmission thermal wave image has characteristics analogous to those of photopyroelectric images. The interferogram produced in the interferometer may be recorded by videography

J. F. Power

1996-01-01T23:59:59.000Z

312

Development of a Cloud-Top Height Estimation Method by Geostationary Satellite Split-Window Measurements Trained with CloudSat Data  

Science Conference Proceedings (OSTI)

Lookup tables for estimating the cloud-top height and visible optical thickness of upper-tropospheric clouds by the infrared brightness temperature TB at 10.8 ?m (T11) and its difference from TB at 12 ?m (?T11–12) measured by a geostationary ...

Atsushi Hamada; Noriyuki Nishi

2010-09-01T23:59:59.000Z

313

Optical fiber inspection system  

DOE Patents (OSTI)

A remote optical inspection system including an inspection head. The inspection head has a passageway through which pellets or other objects are passed. A window is provided along the passageway through which light is beamed against the objects being inspected. A plurality of lens assemblies are arranged about the window so that reflected light can be gathered and transferred to a plurality of coherent optical fiber light guides. The light guides transfer the light images to a television or other image transducer which converts the optical images into a representative electronic signal. The electronic signal can then be displayed on a signal viewer such as a television monitor for inspection by a person. A staging means can be used to support the objects for viewing through the window. Routing means can be used to direct inspected objects into appropriate exit passages for accepted or rejected objects. The inspected objects are advantageously fed in a singular manner to the staging means and routing means. The inspection system is advantageously used in an enclosure when toxic or hazardous materials are being inspected. 10 figs.

Moore, F.W.

1985-04-05T23:59:59.000Z

314

Optical fiber inspection system  

DOE Patents (OSTI)

A remote optical inspection system including an inspection head. The inspection head has a passageway through which pellets or other objects are passed. A window is provided along the passageway through which light is beamed against the objects being inspected. A plurality of lens assemblies are arranged about the window so that reflected light can be gathered and transferred to a plurality of coherent optical fiber light guides. The light guides transfer the light images to a television or other image transducer which converts the optical images into a representative electronic signal. The electronic signal can then be displayed on a signal viewer such as a television monitor for inspection by a person. A staging means can be used to support the objects for viewing through the window. Routing means can be used to direct inspected objects into appropriate exit passages for accepted or rejected objects. The inspected objects are advantageously fed in a singular manner to the staging means and routing means. The inspection system is advantageously used in an enclosure when toxic or hazardous materials are being inspected.

Moore, Francis W. (Richland, WA)

1987-01-01T23:59:59.000Z

315

Layered Models Top-Down Querying of Normal Logic Programs  

Science Conference Proceedings (OSTI)

For practical applications, the use of top-down query-driven proof-procedures is essential for an efficient use and computation of answers using Logic Programs as knowledge bases. Additionally, abductive reasoning on demand is intrinsically a top-down ... Keywords: Relevance, Semantics, Smodels, XSB-XASP

Luís Moniz Pereira; Alexandre Miguel Pinto

2009-01-01T23:59:59.000Z

316

Observations of Cloud-Top Entrainment in Marine Stratocumulus Clouds  

Science Conference Proceedings (OSTI)

Measurements of the thermodynamic and dynamic properties of entrainment events in marine stratocumulus are used to explain why cloud-top entrainment instability may not lead to the breakup of the clouds and to define the role of cloud-top ...

Qing Wang; Bruce A. Albrecht

1994-06-01T23:59:59.000Z

317

Top quark and charged Higgs production at hadron colliders  

Science Conference Proceedings (OSTI)

I present a brief theoretical update on top quark pair production at the Tevatron and give values of the NNLO-NNNLL cross section for both mt = 175 and 178 GeV. I then present a calculation of the cross section for charged Higgs production in association with a top quark at the LHC, including NNLO soft-gluon corrections.

Kidonakis, Nikolaos [Kennesaw State University, Physics no. 1202, 1000 Chastain Rd, Kennesaw, GA 30144-5591 (United States)

2005-10-06T23:59:59.000Z

318

\\ttbar and single top cross sections at the Tevatron  

SciTech Connect

We present a summary of the latest measurements of the top pair and single top cross sections performed by the CDF and D0 collaborations at the Fermilab Tevatron collider. The Fermilab Tevatron collider ended its run on September 30, 2011 after delivering more than 10 fb{sup -1} of p{bar p} collision data per experiment at {radical}s = 1.96 TeV. A large sample of top quarks collected by the CDF and D0 experiments allows to perform precision measurements of their production which is predicted to occur within the standard model (SM) either in pairs via strong interactions or as single top events via electroweak interactions. Such measurements represent an important test of the theoretical calculations which predict the t{bar t} and single top production cross sections with a precision of 6% to 8% and 5%, respectively. Precise measurements of top pair cross section ({sigma}{sub t{bar t}}) in different t{bar t} final states and single top production via different production mechanisms are highly desirable as they are sensitive to the non-SM particles that may appear in top quark production or decays.

CDF, Elizaveta Shabalina for; collaborations, D0

2012-01-01T23:59:59.000Z

319

SNAP Image Gallery  

NLE Websites -- All DOE Office Websites (Extended Search)

Images Images Cutaway image of SNAP A cutaway illustration of SNAP showing some of the interior optics. Cutaway image of SNAP A computer generated cutaway illustration of SNAP Cutaway image of SNAP's primary mirror A computer generated cutaway illustration of SNAP's primary mirror image of SNAP spacecraft A computer generated illustration of the SNAP spacecraft computer generated image of SNAP A computer generated illustration of SNAP Before-and-after pictures (and Hubble Space Telescope picture) of a high-redshift supernovae discovered by the Supernova Cosmology Project in March, 1998. Before-and-after pictures (and Hubble Space Telescope picture) of a high-redshift supernovae discovered in March, 1998. This observaton showed that the expansion of the universe was accelerarting. Credit: High Redshift Supernova Search Supernova Cosmology Project

320

OPTICS 5  

NLE Websites -- All DOE Office Websites (Extended Search)

OPTICS (Version 5.1.02) OPTICS (Version 5.1.02) Release notes NOTE: See the Optics Knowledge Base for how to run this version of Optics on the Microsoft Vista and Microsoft Windows 7 operating systems March 5, 2003: Release Maintenance Pack 2 New ! January 7, 2003: Release Maintenance Pack 1 October 23, 2002: Release Optics 5.1.01 September 27, 2002: Release Optics 5.1.00 (only released on CDs at NFRC Annual Fall Meeting) Release notes Maintenance Pack 2 Bug fixes: New features: bullet Applied films that were created could not be saved or exported. This has been fixed. bullet Exporting glazing systems generated a message that the operation failed because the glazing system type is unknown. Glazing systems can now be exported to file (e.g. to view the spectral data), but the structure information will be lost.

Note: This page contains sample records for the topic "top optical images" 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

6.161 Modern Optics Project Laboratory, Fall 2002  

E-Print Network (OSTI)

Lectures, laboratory exercises, and projects in modern optics. Topics: polarization properties of light, reflection and refraction, coherence and interference, Fraunhofer and Fresnel diffraction, imaging and transforming ...

Warde, Cardinal

322

America Chooses the Next Top Energy Innovator | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

America Chooses the Next Top Energy Innovator America Chooses the Next Top Energy Innovator America Chooses the Next Top Energy Innovator February 10, 2012 - 1:00pm Addthis The America’s Next Top Energy Innovator Challenge makes inventions and technologies developed at the U.S. Department of Energy’s 17 National Laboratories and the Y-12 National Security Complex available to innovative startups. | Photo courtesy of Lawrence Berkeley National Laboratory. The America's Next Top Energy Innovator Challenge makes inventions and technologies developed at the U.S. Department of Energy's 17 National Laboratories and the Y-12 National Security Complex available to innovative startups. | Photo courtesy of Lawrence Berkeley National Laboratory. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs

323

America's Next Top Energy Innovator Challenge | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Science & Innovation » Innovation » America's Next Top Energy Science & Innovation » Innovation » America's Next Top Energy Innovator » America's Next Top Energy Innovator Challenge America's Next Top Energy Innovator Challenge The America's Next Top Energy Innovator Challenge, a part of the Startup America initiative, made it easier for start-ups to use inventions and technology developed at the U.S. Department of Energy's 17 National Laboratories and the Y-12 National Security Complex. The companies highlighted below signed option agreements allowing them to license valuable, cutting-edge technologies from one of the labs. You can see the winners of the 2012 competition here. We counted your 'likes' and then left it up to the panel of experts to evaluate which three of these companies are selected to attend the 2012

324

Top-secret super-secure vault declassified  

NLE Websites -- All DOE Office Websites (Extended Search)

Top-secret super-secure vault declassified Top-secret super-secure vault declassified Top-secret super-secure vault declassified Located in Los Alamos canyon at Technical Area 41, the Tunnel Vault was built between 1948 and 1949. July 23, 2013 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Contact Kevin Roark Communications Office

325

WIPP Receives Top Safety Award | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Top Safety Award Top Safety Award WIPP Receives Top Safety Award November 9, 2011 - 12:00pm Addthis Media Contact Deb Gill www.wipp.energy.gov 575-234-7270 CARLSBAD, N.M. - The U.S. Department of Energy's (DOE) Waste Isolation Pilot Plant (WIPP) received top accolades from New Mexico's leading mining organizations. The New Mexico Bureau of Mine Safety (BMS) recently recognized URS Washington TRU Solutions (WTS), LLC, the WIPP management and operating contractor, for receiving the New Mexico Mining Association (NMMA) and New Mexico BMS Safe Operator of the Year Award. "I'm pleased to congratulate Washington TRU Solutions and the WIPP workforce for receiving the state's top mine safety award for 23 of the past 25 years," said Ed Ziemianski, Carlsbad Field Office Interim

326

WIPP Receives Top Safety Award | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

WIPP Receives Top Safety Award WIPP Receives Top Safety Award WIPP Receives Top Safety Award November 9, 2011 - 12:00pm Addthis Media Contact Deb Gill www.wipp.energy.gov 575-234-7270 CARLSBAD, N.M. - The U.S. Department of Energy's (DOE) Waste Isolation Pilot Plant (WIPP) received top accolades from New Mexico's leading mining organizations. The New Mexico Bureau of Mine Safety (BMS) recently recognized URS Washington TRU Solutions (WTS), LLC, the WIPP management and operating contractor, for receiving the New Mexico Mining Association (NMMA) and New Mexico BMS Safe Operator of the Year Award. "I'm pleased to congratulate Washington TRU Solutions and the WIPP workforce for receiving the state's top mine safety award for 23 of the past 25 years," said Ed Ziemianski, Carlsbad Field Office Interim

327

Secretary Chu Recognizes America's Next Top Energy Innovators | Department  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Recognizes America's Next Top Energy Innovators Recognizes America's Next Top Energy Innovators Secretary Chu Recognizes America's Next Top Energy Innovators February 27, 2012 - 5:48pm Addthis Andrew Heidloff, representing start-up company Iowa Powder Atomization Technologies, is one of America's Next Top Innovators. Secretary Chu announced the winners of the competition today at the 2012 ARPA-E Energy Innovation Summit. | Photo courtesy of ARPA-e contractor Dave Meyer. Andrew Heidloff, representing start-up company Iowa Powder Atomization Technologies, is one of America's Next Top Innovators. Secretary Chu announced the winners of the competition today at the 2012 ARPA-E Energy Innovation Summit. | Photo courtesy of ARPA-e contractor Dave Meyer. April Saylor April Saylor Former Digital Outreach Strategist, Office of Public Affairs

328

Help Choose America's Next Top Energy Innovator | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Help Choose America's Next Top Energy Innovator Help Choose America's Next Top Energy Innovator Help Choose America's Next Top Energy Innovator January 26, 2012 - 9:00am Addthis The America’s Next Top Energy Innovator Challenge, a part of the Startup America initiative, makes it easier for start-ups to use inventions and technologies developed at the U.S. Department of Energy’s 17 National Laboratories and the Y-12 National Security Complex. | Photo courtesy of National Renewable Energy Laboratory. The America's Next Top Energy Innovator Challenge, a part of the Startup America initiative, makes it easier for start-ups to use inventions and technologies developed at the U.S. Department of Energy's 17 National Laboratories and the Y-12 National Security Complex. | Photo courtesy of National Renewable Energy Laboratory.

329

KCP hosts top STEM educators to develop curriculum | National Nuclear  

National Nuclear Security Administration (NNSA)

hosts top STEM educators to develop curriculum | National Nuclear hosts top STEM educators to develop curriculum | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > NNSA Blog > KCP hosts top STEM educators to develop ... KCP hosts top STEM educators to develop curriculum Posted By Office of Public Affairs NNSA Blog The Kansas City Plant recently hosted top STEM educators from Historically

330

Measurements of the top quark mass at the Tevatron  

Science Conference Proceedings (OSTI)

The mass of the top quark (m{sub top}) is a fundamental parameter of the standard model (SM). Currently, its most precise measurements are performed by the CDF and D0 collaborations at the Fermilab Tevatron p{bar p} collider at a centre-of-mass energy of {radical}s = 1.96 TeV. We review the most recent of those measurements, performed on data samples of up to 8.7 fb{sup -1} of integrated luminosity. The Tevatron combination using up to 5.8 fb{sup -1} of data results in a preliminary world average top quark mass of m{sub top} = 173.2 {+-} 0.9 GeV. This corresponds to a relative precision of about 0.54%. We conclude with an outlook of anticipated precision the final measurement of m{sub top} at the Tevatron.

Brandt, Oleg; /Gottingen U., II. Phys. Inst.

2012-04-01T23:59:59.000Z

331

Measurements of the Top Quark at the Tevatron Collider  

SciTech Connect

The authors present recent preliminary measurements of the top-antitop pair production cross section and determinations of the top quark pole mass, performed using the data collected by the CDF and D0 Collaborations at the Tevatron Collider. In the lepton plus jets final state, with semileptonic B decay, the pair production cross section has now been measured at CDF using {approx} 760 pb{sup -1} of proton-antiproton collisions at a center-of-mass energy of {radical}s = 1.96 TeV. A measurement of the production cross section has also been made with {approx} 1 fb{sup -1} of data in the all-jets final state by the CDF Collaboration. The mass of the top quark has now been measured using {approx} 1 fb{sup -1} of collision data using all decay channels of the top quark pair, yielding the most precise measurements of the top mass to date.

Cerrito, Lucio; /Queen Mary, U. of London

2007-01-01T23:59:59.000Z

332

Optical engineering  

SciTech Connect

The Optical Engineering thrust area at Lawrence Livermore National Laboratory (LLNL) was created in the summer of 1996 with the following main objectives: (1) to foster and stimulate leading edge optical engineering research and efforts key to carrying out LLNL's mission and enabling major new programs; (2) to bring together LLNL's broad spectrum of high level optical engineering expertise to support its programs. Optical engineering has become a pervasive and key discipline, with applications across an extremely wide range of technologies, spanning the initial conception through the engineering refinements to enhance revolutionary application. It overlaps other technologies and LLNL engineering thrust areas.

Saito, T T

1998-01-01T23:59:59.000Z

333

Studies of top quark production at D0  

Science Conference Proceedings (OSTI)

I present recent results on top quark production in pp collisions at a center of mass energy of 1.96 TeV. The studies were performed by the D0 collaboration using approximately 5 fb{sup -1} of data taken during Run II at the Fermilab Tevatron accelerator. The top quark is the heaviest known elementary particle and completes the quark sector of the three-generation structure of the standard model (SM). It differs from the other quarks not only by its much larger mass, but also by its lifetime which is too short to build hadronic bound states. The SM predicts that top quarks are created via two independent production mechanisms at hadron colliders. The primary mode, in which a t{bar t} pair is produced from a gtt vertex via the strong interaction, was used by the D0 and CDF collaborations to establish the existence of the top quark in 1995. The second production mode of top quarks at hadron colliders is the electroweak production of a single top quark from a Wtb vertex. The predicted cross section for single top quark production is about half that of t{bar t} pairs but the signal-to-background ratio is much worse; observation of single top quark production has therefore until recently been impeded by its low rate and difficult background environment compared to the top pair production. In the following sections I will present results for the measurement of the t{bar t} pair and the single top quark production cross section using respectively 5.3 fb{sup -1} and 5.4 fb{sup -1} of data taken by the D0 experiment.

Gerber, Cecilia E.; /Illinois U., Chicago

2011-07-01T23:59:59.000Z

334

Top Polarization in Stop Production at the LHC  

E-Print Network (OSTI)

We survey the expected polarization of the top produced in the decay of a scalar top quark, $\\tilde t \\rightarrow {\\tilde t}\\chi_i^0, i =1-2$. The phenomenology is quite interesting, since the expected polarization depends both on the mixing in the stop and neutralino sectors and on the mass differences between the stop and the neutralino. We find that a mixed stop behaves almost like a right-handed stop due to the larger hypercharge that enters the stop/top/gaugino coupling and that these polarisation effects disappear, when $m_{\\tilde t_1} \\approx m_t+m_{\\tilde\\chi^0_i}$. After a discussion on the expected top polarization from the decay of a scalar top quark, we focus on the interplay of polarization and kinematics at the LHC. We discuss different probes of the top polarization in terms of lab-frame observables. We find that these observables faithfully reflect the polarization of the parent top-quark, but also have a non-trivial dependence on the kinematics of the stop production and decay process. In addition, we illustrate the effect of top polarization on the energy and transverse momentum of the decay lepton in the laboratory frame. Our results show that both spectra are softened substantially in case of a negatively polarized top, particularly for a large mass difference between the stop and the neutralino. Thus, the search strategies, and the conclusions that can be drawn from them, depends not just on the mass difference $m_{\\tilde t} - m_{\\tilde\\chi_{i}^{0}}$ due to the usual kinematic effects but also on the effects of top polarization on the decay kinematics the extent of which depends in turn on the said mass difference.

G. Belanger; R. M. Godbole; L. Hartgring; I. Niessen

2012-12-14T23:59:59.000Z

335

Optical Design of Beam Shaping Optics for Camera Probe and LED Light Illumination Used for Minimally Invasive Abdominal Surgery.  

E-Print Network (OSTI)

??The optical design of a LED illuminator and camera imaging system were studied for potential use in a small medical "robotic type" probe to be… (more)

He, Weiyi

2010-01-01T23:59:59.000Z

336

Optical Design of Beam Shaping Optics for Camera Probe and LED Light Illumination Used for Minimally Invasive Abdominal Surgery.  

E-Print Network (OSTI)

?? The optical design of a LED illuminator and camera imaging system were studied for potential use in a small medical "robotic type" probe to… (more)

He, Weiyi

2011-01-01T23:59:59.000Z

337

Quantitative luminescence imaging system  

DOE Patents (OSTI)

The QLIS images and quantifies low-level chemiluminescent reactions in an electromagnetic field. It is capable of real time nonperturbing measurement and simultaneous recording of many biochemical and chemical reactions such as luminescent immunoassays or enzyme assays. The system comprises image transfer optics, a low-light level digitizing camera with image intensifying microchannel plates, an image process or, and a control computer. The image transfer optics may be a fiber image guide with a bend, or a microscope, to take the light outside of the RF field. Output of the camera is transformed into a localized rate of cumulative digitalized data or enhanced video display or hard-copy images. The system may be used as a luminescent microdosimetry device for radiofrequency or microwave radiation, as a thermal dosimeter, or in the dosimetry of ultra-sound (sonoluminescence) or ionizing radiation. It provides a near-real-time system capable of measuring the extremely low light levels from luminescent reactions in electromagnetic fields in the areas of chemiluminescence assays and thermal microdosimetry, and is capable of near-real-time imaging of the sample to allow spatial distribution analysis of the reaction. It can be used to instrument three distinctly different irradiation configurations, comprising (1) RF waveguide irradiation of a small Petri-dish-shaped sample cell, (2) RF irradiation of samples in a microscope for the microscopic imaging and measurement, and (3) RF irradiation of small to human body-sized samples in an anechoic chamber. 22 figs.

Erwin, D.N.; Kiel, J.L.; Batishko, C.R.; Stahl, K.A.

1990-08-14T23:59:59.000Z

338

Quantitative luminescence imaging system  

DOE Patents (OSTI)

The QLIS images and quantifies low-level chemiluminescent reactions in an electromagnetic field. It is capable of real time nonperturbing measurement and simultaneous recording of many biochemical and chemical reactions such as luminescent immunoassays or enzyme assays. The system comprises image transfer optics, a low-light level digitizing camera with image intensifying microchannel plates, an image process or, and a control computer. The image transfer optics may be a fiber image guide with a bend, or a microscope, to take the light outside of the RF field. Output of the camera is transformed into a localized rate of cumulative digitalized data or enhanced video display or hard-copy images. The system may be used as a luminescent microdosimetry device for radiofrequency or microwave radiation, as a thermal dosimeter, or in the dosimetry of ultra-sound (sonoluminescence) or ionizing radiation. It provides a near-real-time system capable of measuring the extremely low light levels from luminescent reactions in electromagnetic fields in the areas of chemiluminescence assays and thermal microdosimetry, and is capable of near-real-time imaging of the sample to allow spatial distribution analysis of the reaction. It can be used to instrument three distinctly different irradiation configurations, comprising (1) RF waveguide irradiation of a small Petri-dish-shaped sample cell, (2) RF irradiation of samples in a microscope for the microscopie imaging and measurement, and (3) RF irradiation of small to human body-sized samples in an anechoic chamber.

Erwin, David N. (San Antonio, TX); Kiel, Johnathan L. (San Antonio, TX); Batishko, Charles R. (West Richland, WA); Stahl, Kurt A. (Richland, WA)

1990-01-01T23:59:59.000Z

339

USDOE Top-of-Rail Lubricant Project  

DOE Green Energy (OSTI)

Lubrication of wheel/rail systems has been recognized for the last two decades as a very important issue for railroads. Energy savings and less friction and wear can be realized if a lubricant can be used at the wheel/rail interface. On the other hand, adverse influences are seen in operating and wear conditions if improper or excessive lubrication is used. Also, inefficiencies in lubrication need to be avoided for economic and environmental reasons. The top-of-rail (TOR) lubricant concept was developed by Texaco Corporation to lubricate wheels and rails effectively and efficiently. Tranergy Corporation has been developing its SENTRAEN 2000{trademark} lubrication system for the last ten years, and this revolutionary new high-tech on-board rail lubrication system promises to dramatically improve the energy efficiency, performance, safety, and track environment of railroads. The system is fully computer-controlled and ensures that all of the lubricant is consumed as the end of the train passes. Lubricant quantity dispensed is a function of grade, speed, curve, and axle load. Tranergy also has its LA4000{trademark} wheel and rail simulator, a lubrication and traction testing apparatus. The primary task of this project was collecting and analyzing the volatile and semivolatile compounds produced as the lubricant was used. The volatile organic compounds were collected by Carbotrap cartridges and analyzed by adsorption and gas chromatography/mass spectrometry (GC/MS). The semivolatile fraction was obtained by collecting liquid that dripped from the test wheel. The collected material was also analyzed by GC/MS. Both of these analyses were qualitative. The results indicated that in the volatile fraction, the only compounds on the Environmental Protection Agency's (EPA) Superfund List of Analytes detected were contaminants either in the room air or from other potential contamination sources in the laboratory. Similarly, in the semivolatile fraction none of the detected compounds are on the EPA's Superfund List of Analytes. The major compound in the semivolatile fraction is 1,2-propanediol, which was also found as the major component of the TOR lubricant before testing. Other compounds found in trace quantities either were present in the TOR lubricant or were small fragments from the polymeric component of the TOR lubricant. The second task for Argonne in this project was to investigate the effects of axle load, angle of attack, and quantity of lubricant on lateral friction forces, as well as the consumption time of the TOR lubricant. The second task was to collect and qualitatively identify any volatile and semivolatile compounds produced upon use of the TOR lubricant.

Mohumad F. Alzoubi; George R. Fenske; Robert A. Erck; Amrit S. Boparai

2002-02-01T23:59:59.000Z

340

A direct electron bombarded charge coupled device for dynamic plasma imaging applications (abstract)  

Science Conference Proceedings (OSTI)

A variety of plasma physics experiments require the recording of continuous time history of x-ray emission. Many laboratories have developed x-ray streak camera technology in order to time resolve x-ray spectra or images produced by laser-driven plasma experiments. These cameras record x rays by converting photons to electrons, which in turn are focused and swept across an electron sensitive area detector as a function of time. X-ray photons impinging on a transmission type photocathode generate photoelectrons which are accelerated to energies between 10 and 20 keV and focused onto a phosphor screen. The light from the phosphor image may be intensified using a microchannel plate, and is usually optically coupled directly onto film or an optical charge coupled device. We have designed and built an x-ray sensitive streak camera readout where we replaced the microchannel plate based intensifier and film package with a modified charge coupled device area detector to directly absorb accelerated photoelectrons emitted from the cathode. This system has been integrated into the streak tube arrangement. We will present a set of system performance data, which have been obtained from both bench top experiments on a dc source and dynamic measurements at the Nova laser facility. X-ray images at various exposure times show better spatial resolution, improved signal to noise ratio, and higher dynamic range. Other advantages include instantaneous data readout, which enables fast postprocessing, and no increase in overall cost for an engineered system.

Weber, F.; Celliers, P.; Bell, P.; Diamond, C.

2001-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "top optical images" 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

Deciphering top flavor violation at the LHC with B factories  

E-Print Network (OSTI)

The LHC will have unprecedented sensitivity to flavor-changing neutral current (FCNC) top quark decays, whose observation would be a clear sign of physics beyond the standard model. Although many details of top flavor violation are model dependent, the standard model gauge symmetries relate top FCNCs to other processes, which are strongly constrained by existing data. We study these constraints in a model independent way, using a low energy effective theory from which the new physics is integrated out. We consider the most important operators which contribute to top FCNCs and analyze the current constraints on them. We find that the data rule out top FCNCs at a level observable at the LHC due to most of the operators comprising left-handed first or second generation quark fields, while there remains a substantial window for top decays mediated by operators with right-handed charm or up quarks. If FCNC top decays are observed at the LHC, such an analysis may help decipher the underlying physics.

Patrick J. Fox; Zoltan Ligeti; Michele Papucci; Gilad Perez; Matthew D. Schwartz

2007-04-12T23:59:59.000Z

342

Correcting for optical aberrations using multilayer displays  

E-Print Network (OSTI)

Optical aberrations of the human eye are currently corrected using eyeglasses, contact lenses, or surgery. We describe a fourth option: modifying the composition of displayed content such that the perceived image appears ...

Huang, Fu-Chung

343

Cloud-Tracked Winds from Pioneer Venus OCPP Images  

Science Conference Proceedings (OSTI)

Analysis of ultraviolet image sequences, obtained from the Pioneer Venus Orbiter Cloud Photopolarimeter and covering five 80-day periods from 1979–1985, provides the first climatological description of the cloud top circulation on Venus. The ...

William B. Rossow; Anthony D. Del Genio; Timothy Eichler

1990-09-01T23:59:59.000Z

344

TopTen Energy Efficient Products Website | Open Energy Information  

Open Energy Info (EERE)

TopTen Energy Efficient Products Website TopTen Energy Efficient Products Website Jump to: navigation, search Tool Summary LAUNCH TOOL Name: TopTen Energy Efficient Products Website Focus Area: Energy Efficiency Topics: Market Analysis Website: www.topten.info/ Equivalent URI: cleanenergysolutions.org/content/topten-energy-efficient-products-webs Language: English Policies: "Deployment Programs,Regulations" is not in the list of possible values (Deployment Programs, Financial Incentives, Regulations) for this property. DeploymentPrograms: Industry Codes & Standards Regulations: Appliance & Equipment Standards and Required Labeling This Web portal intends to: 1) guide consumers to the most energy efficient products in Europe, China, and the United States; 2) provide policy

345

Observation of $t$-channel electroweak top quark production  

SciTech Connect

The top quark is the heaviest known fundamental particle, with a mass of 172.0{sub -1.3}{sup +0.9}GeV. This is nearly twice the mass of the second heaviest known particle, the Z boson, and roughly the mass of a gold atom. Because of its unusually large mass, studying the top quark may provide insight into the Higgs mechanism and other beyond the standard model physics. Only two accelerators in the world are powerful enough to produce top quarks. The Tevatron, which first accelerated protons in 1983, has produced almost 400,000 top quarks, roughly half at each of its two detectors: DO and CDF. The LHC is a much newer accelerator which currently has accumulated about 0.5% as much data as the Tevatron. However, when running at full luminosity, the LHC is capable of producing a top quark about once every second and will quickly surpass the Tevatron as the leading producer of top quarks. This analysis uses data from the D0 detector at the Tevatron, which are described in chapter 3. Top quarks are produced most often in pairs of top and anti-top quarks through an interaction of the strong force. This production mode was first observed in 1995 at the Tevatron. However, top quarks can also be produced though an electroweak interaction, which produces just one top quark. This production mode was first observed at the Tevatron in 2008. Single top quark production can occur in different channels. In this analysis, a measurement of the cross section of the t-channel production mode is performed. This measurement uses 5.4 fb{sup -1} of data and uses the technique of boosted decision trees in order to separate signal from background events. The t-channel cross section is measured to be: {sigma}(p{bar p} {yields} tqb + X) = 3.03{sub -0.66}{sup +0.78}pb (0.0.1). Additional cross section measurements were also performed for the s-channel as well as the s + t-channel. The measurement of each one of these three cross sections was repeated three times using different techniques, and all three methods were combined into a 'super-method' which achieves the best performance. The details of these additional measurements are shown in appendix A.

Triplett, Nathan; /Iowa State U.

2011-04-01T23:59:59.000Z

346

Top quark mass and property measurements at Tevatron  

Science Conference Proceedings (OSTI)

The top quark, discovered in 1995 at the Fermilab Tevatron collider from CDF and D0 experiments, remains by far the most interesting particle to test standard model because of its large mass and unique properties. Having data collected about 10 fb{sup -1} of integrated luminosity of p{bar p} collision, both experiments have been studied the top quark in all the possible directions. In this article, we present the recent measurements of the top quark properties from Tevatron including the mass, width, spin correlation, and W boson helicity using t{bar t} signature.

Lee, Hyun Su

2012-01-01T23:59:59.000Z

347

Top quark, W-boson and light Higgs  

SciTech Connect

The top quark, the W-boson and the Higg boson form an interesting triptych of elementary particles. In the Standard Model knowing the mass of two of these particles, usually the top quark and W-boson, we can predict the mass of the third, the Higgs boson. Therefore in this proceedings I will primarily cover the following topics, top quark physics, W-boson mass and the light Higgs boson at the proton-antiproton collider at Fermilab, the Tevatron. Other hadron collider topics to be cover in this conference include B-physics, QCD, Electroweak Physics, and Supersymmetry.

Parke, S.

1997-10-01T23:59:59.000Z

348

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... 72 DPI Image © 150 DPI Image © 300 DPI Image ©. Title: Quantum Physics; Quantum Communications; Ultrafast Photon Detector; Nam. ...

349

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... 72 DPI Image © 150 DPI Image © 300 DPI Image ©. Title: Energy; Fossil Fuels;Distillation Curves for Complex Fuel Mixtures. ...

350

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... 72 DPI Image © 150 DPI Image © 300 DPI Image ©. Title: Scanning Electron Microscope with Spin Polarization Analysis. ...

351

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... 72 DPI Image © 150 DPI Image © 300 DPI Image ©. Title: Metrology, Basic Units; Mass; Electronic Kilogram. Description ...

352

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... nist.gov. 72 DPI Image © 150 DPI Image © 300 DPI Image ©. Title: Public safety & Smart Grid. Description: Electrical engineer ...

353

Virtual Optical Comparator  

SciTech Connect

The Virtual Optical Comparator, VOC, was conceived as a result of the limitations of conventional optical comparators and vision systems. Piece part designs for mechanisms have started to include precision features on the face of parts that must be viewed using a reflected image rather than a profile shadow. The VOC concept uses a computer generated overlay and a digital camera to measure features on a video screen. The advantage of this system is superior edge detection compared to traditional systems. No vinyl charts are procured or inspected. The part size and expensive fixtures are no longer a concern because of the range of the X-Y table of the Virtual Optical Comparator. Product redesigns require only changes to the CAD image overlays; new vinyl charts are not required. The inspection process is more ergonomic by allowing the operator to view the part sitting at a desk rather than standing over a 30 inch screen. The procurement cost for the VOC will be less than a traditional comparator with a much smaller footprint with less maintenance and energy requirements.

Thompson, Greg

2008-10-20T23:59:59.000Z

354

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... Image Gallery : Image Details. 72 DPI Image No 150 DPI Version 300 DPI Image. Title: Ultrafast Laser Speeds Up Quest for Atomic Control. ...

355

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... Image Gallery : Image Details. 72 DPI Image 150 DPI Image No 300 DPI Version. Title: House; Trees. Description: *BFRL. Subjects (names): ...

356

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... 72 DPI Image © 150 DPI Image © 300 DPI Image ©. Title: New Imaging Tool is Boon to Fuel Cell Research. Description: NIST ...

357

Top-quark asymmetry and the search for a light hadronic resonance in association with a single top quark  

Science Conference Proceedings (OSTI)

The exchange of a light t-channel flavor-changing gauge boson, V', with mass {approx}m{sub top} remains a leading explanation for the anomalous forward-backward asymmetry in top-quark production at the Tevatron. Unlike other ideas, including heavier t-channel mediators, the light V' model is not easily seen in the m{sub tt} distribution. We advocate a more promising strategy. While current analyses at hadron colliders may not be sensitive, we propose searching for a jj resonance in association with single top that may allow discovery in existing data. Deviations in the lepton charge asymmetry in this sample should also be present.

Jung, Sunghoon; Pierce, Aaron [Michigan Center for Theoretical Physics, Department of Physics, University of Michigan, Ann Arbor, Michigan 48109 (United States); Wells, James D. [Michigan Center for Theoretical Physics, Department of Physics, University of Michigan, Ann Arbor, Michigan 48109 (United States); CERN Theoretical Physics (PH-TH), CH-1211 Geneva 23 (Switzerland)

2011-11-01T23:59:59.000Z

358

Military students access top R&D  

NLE Websites -- All DOE Office Websites (Extended Search)

Military students access top R&D Military students access top R&D Military students access top R&D Cadets and midshipmen spend summer expanding their scientific knowledge at world-class Los Alamos facilities August 27, 2013 Military students access top R&D Micah Dose, a midshipman at the U.S. Naval Academy and a SARA intern in the Laboratory's ARIES program, peers inside the glovebox where plutonium pits are dis-assembled at Los Alamos. ARIES is the only program in the nation that disassembles and destroys surplus plutonium pits. The pits are transformed into plutonium oxide powder suitable for being made into fuel for civilian nuclear reactors. "There are a lot of summer training programs out there, but most are class-like," said U.S. Air Force cadet Dale Becker, mentored by the Physics

359

Wind shear and buoyancy reversal at the stratocumulus top  

Science Conference Proceedings (OSTI)

A numerical experiment is designed to study the interaction at the stratocumulus top between a mean vertical shear and the buoyancy reversal due to evaporative cooling, without radiative cooling. Direct numerical simulation is used to eliminate ...

Juan Pedro Mellado; Bjorn Stevens; Heiko Schmidt

360

NNSA Production Office tops Feds Feed Families campaign goal | National  

NLE Websites -- All DOE Office Websites (Extended Search)

Production Office tops Feds Feed Families campaign goal | National Production Office tops Feds Feed Families campaign goal | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > NNSA Blog > NNSA Production Office tops Feds Feed Families ... NNSA Production Office tops Feds Feed Families campaign goal Posted By Office of Public Affairs Employees of the NNSA Production Office (NPO) have donated 17,348 pounds of

Note: This page contains sample records for the topic "top optical images" 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

The 'America's Next Top Energy Innovator' Challenge Begins Today |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

The 'America's Next Top Energy Innovator' Challenge Begins Today The 'America's Next Top Energy Innovator' Challenge Begins Today The 'America's Next Top Energy Innovator' Challenge Begins Today May 2, 2011 - 12:02pm Addthis Lasers used for photovoltaic research in one of SERI's PV labs. | Photo courtesy of the National Renewable Energy Laboratory Lasers used for photovoltaic research in one of SERI's PV labs. | Photo courtesy of the National Renewable Energy Laboratory Ginny Simmons Ginny Simmons Former Managing Editor for Energy.gov, Office of Public Affairs What does this mean for me? The Energy Department's 17 national laboratories currently hold more than 15,000 patents. As part of 'America's Next Top Energy Innovator' challenge, companies can obtain up to three patents from a single lab for $1,000. In a year, the Energy Department will showcase the start-up

362

Measurements of the Properties of the Top Quark  

Science Conference Proceedings (OSTI)

We review recent measurements of the properties of the top quark: the decay width of the top quark, of spin correlations between the top and the antitop quarks in t{bar t} production, the W boson helicity in top decays, the strong colour flow in t{bar t} events, and the asymmetry of t{bar t} production due to the strong colour charge. The measurements are performed on data samples of up to 5.4 fb{sup -1} of integrated luminosity acquired by the CDF and D0 collaborations in Run II of the Fermilab Tevatron p{bar p} collider at a centre-of-mass energy of {radical}s = 1.96 TeV.

Brandt, Oleg

2011-08-01T23:59:59.000Z

363

Search the Blog: Top 10 Green Building Trends for 2010  

E-Print Network (OSTI)

Search the Blog: Search Jan 12 Top 10 Green Building Trends for 2010 by JTilley in Energy GREEN BUSINESS HOME PLANS VIDEOS SEARCH Blogs | Message Boards | Newsletter ProTV | Sweepstakes | Best

364

Tevatron-for-LHC Report: Top and Electroweak Physics  

E-Print Network (OSTI)

The top quark and electroweak bosons (W and Z) represent the most massive fundamental particles yet discovered, and as such refer directly to the Standard Model's greatest remaining mystery: the mechanism by which all particles gained mass. This report summarizes the work done within the top-ew group of the Tevatron-for-LHC workshop. It represents a collection of both Tevatron results, and LHC predictions. The hope is that by considering and comparing both machines, the LHC program can be improved and aided by knowledge from the Tevatron, and that particle physics as a whole can be enriched. The report includes measurements of the top quark mass, searches for single top quark production, and physics of the electroweak bosons at hadron colliders.

C. E. Gerber; P. Murat; T. M. P. Tait; D. Wackeroth; A. Arbuzov; D. Bardin; U. Baur; J. A. Benitez; S. Berge; S. Bondarenko; E. E. Boos; M. T. Bowen; R. Brock; V. E. Bunichev; J. Campbell; F. Canelli; Q. -H. Cao; C. M. Carloni Calame; F. Chevallier; P. Christova; C. Ciobanu; S. Dittmaier; L. V. Dudko; S. D. Ellis; A. I. Etienvre; F. Fiedler; A. Garcia-Bellido; A. Giammanco; D. Glenzinski; P. Golonka; C. Hays; S. Jadach; S. Jain; L. Kalinovskaya; M. Kramer; A. Lleres; J. Luck; A. Lucotte; A. Markina; G. Montagna; P. M. Nadolsky; O. Nicrosini; F. I. Olness; W. Placzek; R. Sadykov; V. I. Savrin; R. Schwienhorst; A. V. Sherstnev; S. Slabospitsky; B. Stelzer; M. J. Strassler; Z. Sullivan; F. Tramontano; A. Vicini; W. Wagner; Z. Was; G. Watts; M. Weber; S. Willenbrock; U. K. Yang; C-P. Yuan; J. Zhu

2007-05-22T23:59:59.000Z

365

TOPS: A Free-Fall Velocity and CTD Profiler  

Science Conference Proceedings (OSTI)

A free-fall instrument, TOPS, measures vertical profiles of horizontal ocean velocity, conductivity and temperature. Profiling capability extends throughout the full water column (6000 db pressure limitation). Larger vertical wavelength (water ...

S. P. Hayes; H. B. Milburn; E. F. Ford

1984-09-01T23:59:59.000Z

366

Topping Turbines: Adding New Life to Older Plants  

E-Print Network (OSTI)

An existing power plant can be repowered at a modest investment cost through a topping turbine installation. Essentially, this consists of replacing the existing old, low pressure boilers with new, high pressure boilers and adding a new, high pressure, non-condensing turbine (topping turbine) . The high pressure steam generated in the new boilers is supplied to the throttle of the high pressure turbine and exhausted at the pressure required by the existing, old, low pressure, condensing turbines. The exhaust from the topping turbine is then supplied to the throttle of the existing turbines. The additional capacity results from the kilowatts generated in the topping turbine while reducing the steam pressure from the throttle to the exhaust conditions. Also, because this steam is not condensed, there is no loss of the latent heat of condensation of the steam to the condenser circulating water. Consequently, the thermal efficiency of the cycle is considerably enhanced.

Cadrecha, M.

1984-01-01T23:59:59.000Z

367

Saturation Point Representation of Cloud-Top Entrainment Instability  

Science Conference Proceedings (OSTI)

Cloud-top entrainment instability was investigated using a mixing line analysis. Mixing time scales are closely related to the actual size of the parcel, so that local instabilities are largely dependent on the scales of mixing near the cloud ...

Reinout Boers

1991-11-01T23:59:59.000Z

368

Top 100 Oil and Gas Fields of 2009  

U.S. Energy Information Administration (EIA) Indexed Site

Top 100 Oil and Gas Fields of 2009 Introduction This supplement to the Energy Information Administration's summary of U.S. Crude Oil, Natural Gas, and Natural Gas Liquids Proved...

369

Vehicle Technologies Office: Fact #611: February 22, 2010 Top...  

NLE Websites -- All DOE Office Websites (Extended Search)

Trucks The top ten lists of best selling cars and light trucks in 2009 show that the Toyota Camry was the best selling car, while the Ford F-Series pickup was the best selling...

370

Vehicle Technologies Office: Fact #631: July 12, 2010 Top 10...  

NLE Websites -- All DOE Office Websites (Extended Search)

2000 Honda Insight with a combined rating of 53 miles per gallon while the 2010 Toyota Prius, a midsized vehicle, takes second place. Fueleconomy.gov's Top Ten EPA-Rated Fuel...

371

Economic/operational advantages of top drive installations  

Science Conference Proceedings (OSTI)

This article addresses specific types of drilling operations, procedures and techniques associated with top drive drilling that create selected and/or specific economic opportunities and justifications for using a rental top drive. Types of drilling operations and/or wells that commonly justify top drive drilling described here include: drilling through sloughing or swelling formations; drilling extended reach, high angle and/or horizontal wells; drilling underbalanced through normal and subnormal formations; and wells with high daily operating costs, time constraints, i.e., days vs. depth, and/or safety and environmental concerns. Top drives, of course, are not justified for every drilling operation. Here, the discussion indicates some situations where portable systems may be applicable.

Brouse, M. [Tesco Drilling Technology, Houston, TX (United States)

1996-10-01T23:59:59.000Z

372

PPPL earns top EPA award | Princeton Plasma Physics Lab  

NLE Websites -- All DOE Office Websites (Extended Search)

earns top EPA award By Jeanne Jackson DeVoe March 14, 2013 Tweet Widget Facebook Like Google Plus One The demolition and sale of the C-Site motor generators yielded over 4 million...

373

MacPherson wins top Communicator award | Princeton Plasma Physics...  

NLE Websites -- All DOE Office Websites (Extended Search)

MacPherson wins top Communicator award May 3, 2012 Tweet Widget Facebook Like Google Plus One Kitta MacPherson. (Photo by Elle Starkman, PPPL Office of Communications) Kitta...

374

Top 100 Operators: Proved Reserves and Production, Operated vs...  

Annual Energy Outlook 2012 (EIA)

Total Operators: Roughly 14,000 Natural Gas: 252 Tcf (89% of U.S. Total) Source: U.S. Energy Information Administration Top 100 Operators: Proved Reserves and Production,...

375

OSTI's Science Search Web Tools in Top 100  

Office of Scientific and Technical Information (OSTI)

OSTI's Science Search Web Tools in Top 100 August 3, 2005 Oak Ridge, TN - Online search tools at the U.S. Department of Energy (DOE) Office of Scientific and Technical Information...

376

The Role of Cloud Top Entrainment in Cumulus Clouds  

Science Conference Proceedings (OSTI)

The entrainment process and its resultant effects on the microphysics and dynamics within cumuli are not yet clearly understood. This research was undertaken to discover the role which cloud top plays in the entrainment process and to determine ...

Joey F. Boatman; August H. Auer Jr.

1983-06-01T23:59:59.000Z

377

LLNL garners two top physics stories of 2012  

NLE Websites -- All DOE Office Websites (Extended Search)

stories 02212013 LLNL garners two top physics stories of 2012 Anne M Stark, LLNL, (925) 422-9799, stark8@llnl.gov Printer-friendly Lawrence Livermore National Laboratory garnered...

378

Physical Processes within the Nocturnal Stratus-topped Boundary Layer  

Science Conference Proceedings (OSTI)

Within the stratus-topped boundary layer many physical processes are involved: longwave radiation cooling, entrainment, latent heating, surface heating, solar heating, drizzling, etc. How all processes combine to maintain the turbulence within ...

Chin-Hoh Moeng; Shaohua Shen; David A. Randall

1992-12-01T23:59:59.000Z

379

NIST Optical Radiation Group  

Science Conference Proceedings (OSTI)

Optical Radiation Group. Welcome. The Optical Radiation Group maintains, improves, and disseminates the national scales ...

2013-07-29T23:59:59.000Z

380

Top-Off Safety Analysis for NSLS-II  

Science Conference Proceedings (OSTI)

Top-off injection will be adopted in NSLS-II. To ensure no injected beam can pass into experimental beamlines with open photon shutters during top-off injection, simulation studies for possible machine fault scenarios are required. We compare two available simulation methods, backward (H. Nishimura-LBL) and forward tracking (A. Terebilo-SLAC). We also discuss the tracking settings, fault scenarios, apertures and interlocks considered in the analysis.

Li,Y.; Casey, B.; Heese, R.; Hseuh, H.; Job, O.; Krinsky, S.; Parker, B.; Shaftan, T.; Sharma, S.

2009-05-04T23:59:59.000Z

Note: This page contains sample records for the topic "top optical images" 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

Sequoia retains top ranking on Graph 500 for third year running  

NLE Websites -- All DOE Office Websites (Extended Search)

12113_sequoia 12113_sequoia 11/21/2013 High Resolution Image Lawrence Livermore's Sequoia supercomputer again retained its No. 1 ranking on the Graph 500 list. Sequoia retains top ranking on Graph 500 for third year running Donald B Johnston, LLNL, (925) 423-4902, johnston19@llnl.gov High Resolution Image From left: LLNL's Adam Bertsch, Dona Crawford and Scott Futral with the certificate for No. 1 on the Graph 500 in the SC13 DOE booth. LLNL's 20 petaflops Sequoia supercomputer again retained its No. 1 ranking on the Graph 500 list, a measure of a system's ability to conduct analytic calculations -- finding the proverbial needle in the haystack. An IBM Blue Gene Q system, Sequoia was able to traverse 15,363 giga edges per second on a scale of 40 graph (a graph with 2^40 vertices). The new

382

High throughput optical scanner  

SciTech Connect

A scanning apparatus is provided to obtain automated, rapid and sensitive scanning of substrate fluorescence, optical density or phosphorescence. The scanner uses a constant path length optical train, which enables the combination of a moving beam for high speed scanning with phase-sensitive detection for noise reduction, comprising a light source, a scanning mirror to receive light from the light source and sweep it across a steering mirror, a steering mirror to receive light from the scanning mirror and reflect it to the substrate, whereby it is swept across the substrate along a scan arc, and a photodetector to receive emitted or scattered light from the substrate, wherein the optical path length from the light source to the photodetector is substantially constant throughout the sweep across the substrate. The optical train can further include a waveguide or mirror to collect emitted or scattered light from the substrate and direct it to the photodetector. For phase-sensitive detection the light source is intensity modulated and the detector is connected to phase-sensitive detection electronics. A scanner using a substrate translator is also provided. For two dimensional imaging the substrate is translated in one dimension while the scanning mirror scans the beam in a second dimension. For a high throughput scanner, stacks of substrates are loaded onto a conveyor belt from a tray feeder.

Basiji, David A. (Seattle, WA); van den Engh, Gerrit J. (Seattle, WA)

2001-01-01T23:59:59.000Z

383

Dynamic Radiographic Imaging  

Science Conference Proceedings (OSTI)

A radiographic system recently developed by American and Russian collaborators is designed to capture multiple images of a dynamic event lasting less than 10 microseconds. Various optical and electro-optical components were considered and their performance compared. The final system employed a solid crystal of lutetium oxyorthosilicate doped with cerium (LSO:Ce or LSO) for X-ray-to-light conversion with a coherent fiber optic bundle to relay the scintillator image to a streak camera with charge coupled device (CCD) readout. Resolution and sensitivity studies were carried out for this system on two different sources of X-rays: a 20 MeV microtron and a 70 MeV betatron.

Volkov, A.; Turley, D.; Veeser, L.; Lukyanov, N.; Yegorov, N.; Baker, S.A.; Mirenko, V.; Lewis, W.; Kuropatkin, Y.

1999-06-01T23:59:59.000Z

384

Scanning computed confocal imager  

DOE Patents (OSTI)

There is provided a confocal imager comprising a light source emitting a light, with a light modulator in optical communication with the light source for varying the spatial and temporal pattern of the light. A beam splitter receives the scanned light and direct the scanned light onto a target and pass light reflected from the target to a video capturing device for receiving the reflected light and transferring a digital image of the reflected light to a computer for creating a virtual aperture and outputting the digital image. In a transmissive mode of operation the invention omits the beam splitter means and captures light passed through the target.

George, John S. (Los Alamos, NM)

2000-03-14T23:59:59.000Z

385

The College of Optics & Photonics Industrial Affiliates Day  

E-Print Network (OSTI)

wavelength Sunlight Unclad fiber under UV light Concentrating fiber fabric First complete solar The College of Optics & Photonics Infrared Systems Lab Solar X-ray Imager Near-field Scanning Optical crystals) · OPTICAL DIAGNOSTICS · LIGHT PROCESSING TECH · Laser Energetics · POLARA · Applied Photonics

Van Stryland, Eric

386

Reflective ghost imaging through turbulence  

SciTech Connect

Recent work has indicated that ghost imaging may have applications in standoff sensing. However, most theoretical work has addressed transmission-based ghost imaging. To be a viable remote-sensing system, the ghost imager needs to image rough-surfaced targets in reflection through long, turbulent optical paths. We develop, within a Gaussian-state framework, expressions for the spatial resolution, image contrast, and signal-to-noise ratio of such a system. We consider rough-surfaced targets that create fully developed speckle in their returns and Kolmogorov-spectrum turbulence that is uniformly distributed along all propagation paths. We address both classical and nonclassical optical sources, as well as a computational ghost imager.

Hardy, Nicholas D.; Shapiro, Jeffrey H. [Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

2011-12-15T23:59:59.000Z

387

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... click to retrieve mpg file of the device in action.) The moving plate is controlled by resistance heating elements in the chevron-like structure at the top ...

388

Issue 14: Transportation, Economy, and Crime Top Los Angeles County Residents’ Concerns About the Region  

E-Print Network (OSTI)

Transportation, Economy, and Crime Top LA County Residents’Transportation, Economy, and Crime Top LA County Residents’the economy, educa- tion, crime, and housing were the most

Haselhoff, Kim; Ong, Paul M.; Tran, Lucy

2005-01-01T23:59:59.000Z

389

Top 100 Oil and Gas Fields for 1999 - U.S. Energy Information ...  

U.S. Energy Information Administration (EIA)

Appendix B Top 100 Oil and Gas Fields for 1999 This appendix presents estimates of the proved reserves and production of the top 100 oil and gas

390

What countries are the top world oil net importers? - FAQ - U.S ...  

U.S. Energy Information Administration (EIA)

What's changing in East Coast fuels markets? ... What countries are the top world oil net importers? There are 15 top world oil net importers. Last revised: ...

391

Optical fuel pin scanner. [Patent application; for reading identifications  

DOE Patents (OSTI)

This patent relates to an optical identification system developed for post-irradiation disassembly and analysis of fuel bundle assemblies. The apparatus is designed to be lowered onto a stationary fuel pin to read identification numbers or letters imprinted on the circumference of the top fuel pin and cap. (DLC)

Kirchner, T.L.; Powers, H.G.

1980-12-09T23:59:59.000Z

392

Efficient Graffiti Image Retrieval  

Science Conference Proceedings (OSTI)

Research of graffiti character recognition and retrieval, as a branch of traditional optical character recognition (OCR), has started to gain attention in recent years. We have investigated the special challenge of the graffiti image retrieval problem and propose a series of novel techniques to overcome the challenges. The proposed bounding box framework locates the character components in the graffiti images to construct meaningful character strings and conduct image-wise and semantic-wise retrieval on the strings rather than the entire image. Using real world data provided by the law enforcement community to the Pacific Northwest National Laboratory, we show that the proposed framework outperforms the traditional image retrieval framework with better retrieval results and improved computational efficiency.

Yang, Chunlei; Wong, Pak C.; Ribarsky, William; Fan, Jianping

2012-07-05T23:59:59.000Z

393

IMAGING SPECTROSCOPY USING AIA DIFFRACTION PATTERNS IN CONJUNCTION WITH RHESSI AND EVE OBSERVATIONS  

SciTech Connect

Extreme-ultraviolet (EUV) spectroscopy is a very powerful tool that can be used for probing the dynamic response of the solar corona and chromosphere during solar flares. Here we present a unique application of observations from the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamics Observatory using the artifacts of diffraction and dispersion. Using these techniques we can achieve imaging spectroscopy at the resolution of AIA (0.''6 plate scale) and at the revolutionary cadence of the instrument (nominally 12 s) for the brightest (saturated) pixels during solar flares. Analyzing the dispersion and diffraction effects that are observed as a result of the support grids used for the instrument's front filters, we can achieve up to 0.5 A spectral resolution across the EUV, optically thin passbands. Here we describe the technique used and present the first result of its application-the emission measure distribution for a single pixel at the top of a flaring loop. We analyze the AIA dispersion spectrum in conjunction with Extreme Ultraviolet Variability Experiment observations and spectroscopic and imaging results from the Reuven Ramaty High Energy Solar Spectroscopic Imager.

Raftery, Claire L. [Space Sciences Lab, UC Berkeley, 7 Gauss Way, Berkeley, CA 94720-7450 (United States); Krucker, Saem [Institute of 4D Technologies, School of Engineering, University of Applied Sciences, North Western Switzerland, 5210 Windisch (Switzerland); Lin, Robert P., E-mail: claire@ssl.berkeley.edu [Physics Department, University of California, Berkeley, CA 94720-7450 (United States)

2011-12-20T23:59:59.000Z

394

Topping PCFB combustion plant with supercritical steam pressure  

SciTech Connect

Research is being conducted to develop a new type of coal fired plant for electric power generation. This new type of plant, called a second generation or topping pressurized circulating fluidized bed combustion (topping PCFB) plant, offers the promise of efficiencies greater than 46 percent (HHV), with both emissions and a cost of electricity that are significantly lower than conventional pulverized coal fired plants with scrubbers. The topping PCFB plant incorporates the partial gasification of coal in a carbonizer, the combustion of carbonizer char in a pressurized circulating fluidized bed combustor (PCFB), and the combustion of carbonizer fuel gas in a topping combustor to achieve gas turbine inlet temperatures of 2,300 F and higher. After completing pilot plant tests of a carbonizer, a PCFB, and a gas turbine topping combustor, all being developed for this new plant, the authors calculated a higher heating value efficiency of 46.2 percent for the plant. In that analysis, the plant operated with a conventional 2,400 psig steam cycle with 1,000 F superheat and reheat steam and a 2.5 inch mercury condenser back pressure. This paper identifies the efficiency gains that this plant will achieve by using supercritical pressure steam conditions.

Robertson, A. [Foster Wheeler Development Corp., Livingston, NJ (United States); White, J. [Parsons Power Group Inc., Reading, PA (United States)

1997-11-01T23:59:59.000Z

395

Top-of-atmosphere radiative cooling with white roofs: experimental  

NLE Websites -- All DOE Office Websites (Extended Search)

Top-of-atmosphere radiative cooling with white roofs: experimental Top-of-atmosphere radiative cooling with white roofs: experimental verification and model-based evaluation Title Top-of-atmosphere radiative cooling with white roofs: experimental verification and model-based evaluation Publication Type Journal Article Year of Publication 2012 Authors Salamanca, Francisco, Shaheen R. Tonse, Surabi Menon, Vishal Garg, Krishna P. Singh, Manish Naja, and Marc L. Fischer Journal Environmental Research Letters Volume 7 Issue 4 Abstract We evaluate differences in clear-sky upwelling shortwave radiation reaching the top of the atmosphere in response to increasing the albedo of roof surfaces in an area of India with moderately high aerosol loading. Treated (painted white) and untreated (unpainted) roofs on two buildings in northeast India were analyzed on five cloudless days using radiometric imagery from the IKONOS satellite. Comparison of a radiative transfer model (RRTMG) and radiometric satellite observations shows good agreement (R2 = 0.927). Results show a mean increase of ~50 W m-2 outgoing at the top of the atmosphere for each 0.1 increase of the albedo at the time of the observations and a strong dependence on atmospheric transmissivity.

396

A top quark mass measurement using a matrix element method  

Science Conference Proceedings (OSTI)

A measurement of the mass of the top quark is presented, using top-antitop pair (t{bar t}) candidate events for the lepton+jets decay channel. The measurement makes use of Tevatron p{bar p} collision data at centre-of-mass energy {radical}s = 1.96 TeV, collected at the CDF detector. The top quark mass is measured by employing an unbinned maximum likelihood method where the event probability density functions are calculated using signal (t{bar t}) and background (W+jets) matrix elements, as well as a set of parameterised jet-to-parton mapping functions. The likelihood function is maximised with respect to the top quark mass, the fraction of signal events, and a correction to the jet energy scale (JES) of the calorimeter jets. The simultaneous measurement of the JES correction ({Delta}{sub JES}) provides an in situ jet energy calibration based on the known mass of the hadronically decaying W boson. Using 578 lepton+jets candidate events corresponding to 3.2 fb{sup -1} of integrated luminosity, the top quark mass is measured to be m{sub t} = 172.4 {+-} 1.4 (stat+{Delta}{sub JES}) {+-} 1.3 (syst) GeV=c{sup 2}, one of the most precise single measurements to date.

Linacre, Jacob Thomas; /Oxford U.

2010-02-01T23:59:59.000Z

397

Optical memory  

DOE Patents (OSTI)

Optical memory comprising: a semiconductor wire, a first electrode, a second electrode, a light source, a means for producing a first voltage at the first electrode, a means for producing a second voltage at the second electrode, and a means for determining the presence of an electrical voltage across the first electrode and the second electrode exceeding a predefined voltage. The first voltage, preferably less than 0 volts, different from said second voltage. The semiconductor wire is optically transparent and has a bandgap less than the energy produced by the light source. The light source is optically connected to the semiconductor wire. The first electrode and the second electrode are electrically insulated from each other and said semiconductor wire.

Mao, Samuel S; Zhang, Yanfeng

2013-07-02T23:59:59.000Z

398

Optical switch  

DOE Patents (OSTI)

An optical switching device (10) is provided whereby light from a first glass fiber (16) or a second glass fiber (14) may be selectively transmitted into a third glass fiber (18). Each glass fiber is provided with a focusing and collimating lens system (26, 28, 30). In one mode of operation, light from the first glass fiber (16) is reflected by a planar mirror (36) into the third glass fiber (18). In another mode of operation, light from the second glass fiber (14) passes directly into the third glass fiber (18). The planar mirror (36) is attached to a rotatable table (32) which is rotated to provide the optical switching.

Reedy, Robert P. (Livermore, CA)

1987-01-01T23:59:59.000Z

399

Optical switch  

DOE Patents (OSTI)

An optical switching device is provided whereby light from a first glass fiber or a second glass fiber may be selectively transmitted into a third glass fiber. Each glass fiber is provided with a focusing and collimating lens system. In one mode of operation, light from the first glass fiber is reflected by a planar mirror into the third glass fiber. In another mode of operation, light from the second glass fiber passes directly into the third glass fiber. The planar mirror is attached to a rotatable table which is rotated to provide the optical switching. 3 figs.

Reedy, R.P.

1987-11-10T23:59:59.000Z

400

Energy Department Recognizes Nation's Top Green Power Programs |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Recognizes Nation's Top Green Power Programs Recognizes Nation's Top Green Power Programs Energy Department Recognizes Nation's Top Green Power Programs November 16, 2011 - 1:08pm Addthis WASHINGTON, D.C. - The U.S. Department of Energy (DOE) today recognized four leading organizations for expanding the market for electricity produced from renewable energy sources during the 11th annual Green Power Leadership Awards in San Francisco, Calif. These organizations' innovative "green power" programs provide consumers with the opportunity to purchase clean energy from environmentally-preferred sources, such as wind and solar energy. Organizations that offer and promote green power programs support an industry that creates thousands of jobs each year, making clean, renewable energy accessible and affordable to the homeowners and businesses they

Note: This page contains sample records for the topic "top optical images" 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

DOE Recognizes Top ENERGY STAR Partners | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Top ENERGY STAR Partners Top ENERGY STAR Partners DOE Recognizes Top ENERGY STAR Partners April 1, 2009 - 12:00am Addthis WASHINGTON - The U.S. Department of Energy (DOE) and the U.S. Environmental Protection Agency (EPA) honored businesses, regional groups, and government entities for their outstanding commitment to the ENERGY STAR® program. Organizations recognized have achieved major energy savings and/or are helping consumers save money while also increasing energy efficiency and reducing carbon emissions. While saving energy, ENERGY STAR® products maintain or surpass quality standards and offer improved features and personal comfort. The awards were presented to ENERGY STAR® partners last night, at the annual ENERGY STAR® Awards ceremony in Washington, DC. Energy Secretary Steven Chu noted the ENERGY STAR® awards, saying, "Over

402

EM's Top Official Celebrates 'Cocooning' of Reactor Dedicated by  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Top Official Celebrates 'Cocooning' of Reactor Dedicated Top Official Celebrates 'Cocooning' of Reactor Dedicated by President Kennedy Decades Ago EM's Top Official Celebrates 'Cocooning' of Reactor Dedicated by President Kennedy Decades Ago June 1, 2012 - 12:00pm Addthis Senior Advisor for Environmental Management David Huizenga speaks during an event announcing the completion of work to place N Reactor in safe storage. Senior Advisor for Environmental Management David Huizenga speaks during an event announcing the completion of work to place N Reactor in safe storage. An aerial photo shows the N Reactor complex just before work to place the reactor in safe storage, or "cocooning," was completed. An aerial photo shows the N Reactor complex just before work to place the reactor in safe storage, or "cocooning," was completed.

403

Limiting Factors for Convective Cloud Top Height in the Tropics  

NLE Websites -- All DOE Office Websites (Extended Search)

Limiting Factors for Convective Cloud Top Limiting Factors for Convective Cloud Top Height in the Tropics M. P. Jensen and A. D. Del Genio National Aeronautics and Space Administration Goddard Institute for Space Studies Columbia University New York, New York Introduction Populations of tropical convective clouds are mainly comprised of three types: shallow trade cumulus, mid-level cumulus congestus and deep convective clouds (Johnson et al. 1999). Each of these cloud types has different impacts on the local radiation and water budgets. For climate model applications it is therefore important to understand the factors which determine the type of convective cloud that will occur. In this study, we concentrate on describing the factors that limit the cloud-top heights of mid-

404

Energy Department Receives EPA Award for Top Green Power Purchase |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Energy Department Receives EPA Award for Top Green Power Purchase Energy Department Receives EPA Award for Top Green Power Purchase Energy Department Receives EPA Award for Top Green Power Purchase September 24, 2013 - 12:19pm Addthis The Energy Department announced today that it has received a 2013 Green Power Leadership Award from the U.S. Environmental Protection Agency (EPA). The annual awards recognize the country's leading green power consumers for their commitment and contribution to helping advance the development of the nation's voluntary green power market. EPA presented the Energy Department with the award at an event held in conjunction with the 2013 Renewable Energy Markets Conference in Austin, Texas, on September 23, 2013. The Department was one of only eight organizations nationwide to receive a Leadership Award for utilization of green power. The award recognizes EPA

405

Carlsbad Field Office Technical Assistance Contractor Shares In Top Honor |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Technical Assistance Contractor Shares In Top Technical Assistance Contractor Shares In Top Honor Carlsbad Field Office Technical Assistance Contractor Shares In Top Honor July 1, 2012 - 12:00pm Addthis Members of the Carlsbad Technical Assistance Contractor discuss audit criteria for quality assurance implementation. Members of the Carlsbad Technical Assistance Contractor discuss audit criteria for quality assurance implementation. CARLSBAD, N.M. - The Carlsbad Field Office Technical Assistance Contractor's (CTAC) parent company, Portage, Inc., and its 400 employees nationwide recently achieved a significant milestone by exceeding one million hours worked over 560 days without a lost-time injury or illness. CTAC is a small group responsible for technical and quality assurance resources for the DOE Carlsbad Field Office (CBFO), which provides

406

Energy Department Receives EPA Award for Top Green Power Purchase |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Energy Department Receives EPA Award for Top Green Power Purchase Energy Department Receives EPA Award for Top Green Power Purchase Energy Department Receives EPA Award for Top Green Power Purchase September 24, 2013 - 12:19pm Addthis The Energy Department announced today that it has received a 2013 Green Power Leadership Award from the U.S. Environmental Protection Agency (EPA). The annual awards recognize the country's leading green power consumers for their commitment and contribution to helping advance the development of the nation's voluntary green power market. EPA presented the Energy Department with the award at an event held in conjunction with the 2013 Renewable Energy Markets Conference in Austin, Texas, on September 23, 2013. The Department was one of only eight organizations nationwide to receive a Leadership Award for utilization of green power. The award recognizes EPA

407

Top 10 Reasons for Energy Codes | Building Energy Codes Program  

NLE Websites -- All DOE Office Websites (Extended Search)

Top 10 Reasons for Energy Codes Top 10 Reasons for Energy Codes The projected energy savings attributable to energy codes translates into an estimated cumulative savings of 800 million metric tons of carbon dioxide by 2030-that's equivalent to removing 145 million vehicles from our nation's roadways. Here are the top 10 reasons for adopting and implementing energy codes. Today's global energy, economic, and environmental challenges necessitate a U.S. strategy identifying a suite of energy-efficiency-related initiatives that is implemented by the building industry and relevant stakeholders. Energy codes are a core component of that strategy and, in addition, have an impact on other strategies to improve our built environment. Energy Codes... SAVE money and help reduce needless consumption of energy to heat,

408

NREL Facility Named One of Nation's Top Sustainable Buildings |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

NREL Facility Named One of Nation's Top Sustainable Buildings NREL Facility Named One of Nation's Top Sustainable Buildings NREL Facility Named One of Nation's Top Sustainable Buildings June 24, 2011 - 12:31pm Addthis The 222,000 sq. ft. RSF has been recognized for its innovative construction and efficiency. | Courtesy of Dennis Schroeder, National Renewable Energy Laboratory staff photographer. The 222,000 sq. ft. RSF has been recognized for its innovative construction and efficiency. | Courtesy of Dennis Schroeder, National Renewable Energy Laboratory staff photographer. Eric Escudero Eric Escudero Senior Public Affairs Specialist & Contractor, Golden Field Office It's been a little over a year since the Energy Department's Research Support Facility (RSF) opened on the National Renewable Energy Laboratory (NREL) campus in Colorado. The innovative approach taken in the design and

409

NREL Facility Named One of Nation's Top Sustainable Buildings |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

NREL Facility Named One of Nation's Top Sustainable Buildings NREL Facility Named One of Nation's Top Sustainable Buildings NREL Facility Named One of Nation's Top Sustainable Buildings June 24, 2011 - 12:31pm Addthis The 222,000 sq. ft. RSF has been recognized for its innovative construction and efficiency. | Courtesy of Dennis Schroeder, National Renewable Energy Laboratory staff photographer. The 222,000 sq. ft. RSF has been recognized for its innovative construction and efficiency. | Courtesy of Dennis Schroeder, National Renewable Energy Laboratory staff photographer. Eric Escudero Eric Escudero Senior Public Affairs Specialist & Contractor, Golden Field Office It's been a little over a year since the Energy Department's Research Support Facility (RSF) opened on the National Renewable Energy Laboratory (NREL) campus in Colorado. The innovative approach taken in the design and

410

Success at Sandia - Attracting Top Native American STEM Professionals to  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Success at Sandia - Attracting Top Native American STEM Success at Sandia - Attracting Top Native American STEM Professionals to the Department of Energy Success at Sandia - Attracting Top Native American STEM Professionals to the Department of Energy December 7, 2011 - 12:35pm Addthis Dr. Stan Atcitty, a Sandia engineer, works on power electronics and energy storage integration to the grid. A program run by Sandia Labs for Native Americans in STEM paid for his Master's and Ph.D. degrees while he worked at Sandia. Dr. Stan Atcitty, a Sandia engineer, works on power electronics and energy storage integration to the grid. A program run by Sandia Labs for Native Americans in STEM paid for his Master's and Ph.D. degrees while he worked at Sandia. Bill Valdez Bill Valdez Principal Deputy Director From their labs under the hot New Mexican sun, the staff at Sandia National

411

Tapping Top University Draft Picks to Engineer Solar Championships |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Tapping Top University Draft Picks to Engineer Solar Championships Tapping Top University Draft Picks to Engineer Solar Championships Tapping Top University Draft Picks to Engineer Solar Championships February 2, 2012 - 3:03pm Addthis The Office of Energy Efficiency and Renewable Energy offers a variety of internships, fellowships, and scholarships in addition to the postdoctoral research awards. Current SunShot fellows pose in front of the Apollo Lunar Module at the National Air and Space Museum. | Energy Department file photo. The Office of Energy Efficiency and Renewable Energy offers a variety of internships, fellowships, and scholarships in addition to the postdoctoral research awards. Current SunShot fellows pose in front of the Apollo Lunar Module at the National Air and Space Museum. | Energy Department file

412

Top of Iowa Wind Farm | Open Energy Information  

Open Energy Info (EERE)

Top of Iowa Wind Farm Top of Iowa Wind Farm Facility Top of Iowa Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Developer Zilkha Renewable/Midwest Renewable Energy Purchaser Alliant/IES Utilities Location Worth County IA Coordinates 43.361088°, -93.294282° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":43.361088,"lon":-93.294282,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

413

Department of Energy Recognizes Top ENERGY STAR® Partners | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Recognizes Top ENERGY STAR® Partners Recognizes Top ENERGY STAR® Partners Department of Energy Recognizes Top ENERGY STAR® Partners April 2, 2008 - 2:48pm Addthis Leaders recognized for energy efficiency efforts WASHINGTON, DC - The U.S. Department of Energy (DOE) and the U.S. Environmental Protection Agency (EPA) honored 76 businesses, groups and government entities for their outstanding commitment to the ENERGY STAR® program. Organizations recognized have achieved major energy savings and/or are helping consumers save money while also increasing energy efficiency and reducing carbon emissions. Following opening remarks from Energy Secretary Samuel W. Bodman, awards were presented to several ENERGY STAR® partners last night, at the annual ENERGY STAR® Awards ceremony in Washington, DC.

414

Green Power Network: Top Ten Utility Green Power Programs  

NLE Websites -- All DOE Office Websites (Extended Search)

Top Ten Utility Green Power Programs (as of December 2012) Which utilities are having the greatest success with their green power programs? NREL has compiled extensive data on utility green power programs and produced the following "Top Ten" lists of program characteristics and results: total sales of renewable energy to program participants; total number of customer participants; customer participation rates; percentage of renewable energy in total retail sales; the lowest premium charged to support new renewables development; and utilities using at least two percent solar to supply their green pricing programs. Download Information Release: NREL Highlights 2012 Utility Green Power Leaders Previous Top Ten Lists - December 2010, December 2009, December 2008, December 2007, December 2006, December 2005, December 2004, December 2003, December 2002, December 2001, June 2001, November 2000, April 2000

415

Top of the World (GE) | Open Energy Information  

Open Energy Info (EERE)

Top of the World (GE) Top of the World (GE) Facility Top of the World (GE) Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Duke Energy Carolinas LLC Developer Duke Energy Carolinas LLC Energy Purchaser PacifiCorp Location 4 miles northeast of Glenrock WY Coordinates 42.914132°, -105.691223° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.914132,"lon":-105.691223,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

416

EM's Top Official Underscores Commitment to Meet with Tribes | Department  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Top Official Underscores Commitment to Meet with Tribes Top Official Underscores Commitment to Meet with Tribes EM's Top Official Underscores Commitment to Meet with Tribes November 29, 2012 - 12:00pm Addthis Senior Advisor for Environmental Management David Huizenga, center, speaks with Pilar Thomas, deputy director of the Office of Indian Energy Policy and Programs, left, and John Moon, acting principal deputy director of the Office of Economic Impact and Diversity, at DOE's event this week recognizing contributions of Native Americans. Senior Advisor for Environmental Management David Huizenga, center, speaks with Pilar Thomas, deputy director of the Office of Indian Energy Policy and Programs, left, and John Moon, acting principal deputy director of the Office of Economic Impact and Diversity, at DOE's event this week

417

Success at Sandia - Attracting Top Native American STEM Professionals to  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Success at Sandia - Attracting Top Native American STEM Success at Sandia - Attracting Top Native American STEM Professionals to the Department of Energy Success at Sandia - Attracting Top Native American STEM Professionals to the Department of Energy December 7, 2011 - 12:35pm Addthis Dr. Stan Atcitty, a Sandia engineer, works on power electronics and energy storage integration to the grid. A program run by Sandia Labs for Native Americans in STEM paid for his Master's and Ph.D. degrees while he worked at Sandia. Dr. Stan Atcitty, a Sandia engineer, works on power electronics and energy storage integration to the grid. A program run by Sandia Labs for Native Americans in STEM paid for his Master's and Ph.D. degrees while he worked at Sandia. Bill Valdez Bill Valdez Principal Deputy Director From their labs under the hot New Mexican sun, the staff at Sandia National

418

W and Anomalous Single Top Production at HERA  

E-Print Network (OSTI)

The analysis of $W$ production and the search for anomalous single top production is performed with the H1 detector at HERA with an integrated luminosity of 0.5 fb$^{-1}$, consisting of the complete high energy data from the HERA programme. Production cross section measurements of single $W$ production, as well as $W$ polarisation fractions in events containing isolated leptons and missing transverse momentum are also presented. In the context of a search for single top production an upper limit on the top production cross section $\\sigma_{ep\\to etX} < 0.16$ pb is established at the 95% confidence level, corresponding to an upper bound on the anomalous magnetic coupling $\\kappa_{tu\\gamma} < 0.14$.

E. Rizvi; for the H1 Collabortion

2008-07-22T23:59:59.000Z

419

Determination of the width of the top quark  

E-Print Network (OSTI)

We extract the total width of the top quark, Gamma_t, from the partial decay width Gamma(t -> W b) measured using the t-channel cross section for single top quark production and from the branching fraction B(t -> W b) measured in ttbar events using up to 2.3 fb^-1 of integrated luminosity collected by the D0 Collaboration at the Tevatron ppbar Collider. The result is Gamma_t = 1.99 +0.69 -0.55 GeV, which translates to a top-quark lifetime of tau_t = (3.3 +1.3 -0.9) x 10^-25 s. Assuming a high mass fourth generation b' quark and unitarity of the four-generation quark-mixing matrix, we set the first upper limit on |Vtb'| < 0.63 at 95% C.L.

V. M. Abazov; B. Abbott; M. Abolins; B. S. Acharya; M. Adams; T. Adams; G. D. Alexeev; G. Alkhazov; A. Altona; G. Alverson; G. A. Alves; L. S. Ancu; M. Aoki; Y. Arnoud; M. Arov; A. Askew; B. \\degAsman; O. Atramentov; C. Avila; J. BackusMayes; F. Badaud; L. Bagby; B. Baldin; D. V. Bandurin; S. Banerjee; E. Barberis; P. Baringer; J. Barreto; J. F. Bartlett; U. Bassler; V. Bazterra; S. Beale; A. Bean; M. Begalli; M. Begel; C. Belanger-Champagne; L. Bellantoni; S. B. Beri; G. Bernardi; R. Bernhard; I. Bertram; M. Besan?con; R. Beuselinck; V. A. Bezzubov; P. C. Bhat; V. Bhatnagar; G. Blazey; S. Blessing; K. Bloom; A. Boehnlein; D. Boline; T. A. Bolton; E. E. Boos; G. Borissov; T. Bose; A. Brandt; O. Brandt; R. Brock; G. Brooijmans; A. Bross; D. Brown; J. Brown; X. B. Bu; D. Buchholz; M. Buehler; V. Buescher; V. Bunichev; S. Burdinb; T. H. Burnett; C. P. Buszello; B. Calpas; E. Camacho-P?erez; M. A. Carrasco-Lizarraga; B. C. K. Casey; H. Castilla-Valdez; S. Chakrabarti; D. Chakraborty; K. M. Chan; A. Chandra; G. Chen; S. Chevalier-Th?ery; D. K. Cho; S. W. Cho; S. Choi; B. Choudhary; T. Christoudias; S. Cihangir; D. Claes; J. Clutter; M. Cooke; W. E. Cooper; M. Corcoran; F. Couderc; M. -C. Cousinou; A. Croc; D. Cutts; M. ?Cwiok; A. Das; G. Davies; K. De; S. J. de Jong; E. De La Cruz-Burelo; F. D?eliot; M. Demarteau; 47 R. Demina; D. Denisov; S. P. Denisov; S. Desai; K. DeVaughan; H. T. Diehl; M. Diesburg; A. Dominguez; T. Dorland; A. Dubey; L. V. Dudko; D. Duggan; A. Duperrin; S. Dutt; A. Dyshkant; M. Eads; D. Edmunds; J. Ellison; V. D. Elvira; Y. Enari; S. Eno; H. Evans; A. Evdokimov; V. N. Evdokimov; G. Facini; T. Ferbel; F. Fiedler; F. Filthaut; W. Fisher; H. E. Fisk; M. Fortner; H. Fox; S. Fuess; T. Gadfort; A. Garcia-Bellido; V. Gavrilov; P. Gay; W. Geist; W. Geng; D. Gerbaudo; C. E. Gerber; Y. Gershtein; G. Ginther; G. Golovanov; A. Goussiou; P. D. Grannis; S. Greder; H. Greenlee; Z. D. Greenwood; E. M. Gregores; G. Grenier; Ph. Gris; J. -F. Grivaz; A. Grohsjean; S. Gr?unendahl; M. W. Gr?unewald; F. Guo; J. Guo; G. Gutierrez; P. Gutierrez; A. Haasc; S. Hagopian; J. Haley; L. Han; K. Harder; A. Harel; J. M. Hauptman; J. Hays; T. Head; T. Hebbeker; D. Hedin; H. Hegab; A. P. Heinson; U. Heintz; C. Hensel; I. Heredia-De La Cruz; K. Herner; G. Hesketh; M. D. Hildreth; R. Hirosky; T. Hoang; J. D. Hobbs; B. Hoeneisen; M. Hohlfeld; S. Hossain; Z. Hubacek; N. Huske; V. Hynek; I. Iashvili; R. Illingworth; A. S. Ito; S. Jabeen; M. Jaffr?e; S. Jain; D. Jamin; R. Jesik; K. Johns; M. Johnson; D. Johnston; A. Jonckheere; P. Jonsson; J. Joshi; A. Justed; K. Kaadze; E. Kajfasz; D. Karmanov; P. A. Kasper; I. Katsanos; R. Kehoe; S. Kermiche; N. Khalatyan; A. Khanov; A. Kharchilava; Y. N. Kharzheev; D. Khatidze; M. H. Kirby; J. M. Kohli; A. V. Kozelov; J. Kraus; A. Kumar; A. Kupco; T. Kur?ca; V. A. Kuzmin; J. Kvita; S. Lammers; G. Landsberg; P. Lebrun; H. S. Lee; S. W. Lee; W. M. Lee; J. Lellouch; L. Li; Q. Z. Li; S. M. Lietti; J. K. Lim; D. Lincoln; J. Linnemann; V. V. Lipaev; R. Lipton; Y. Liu; Z. Liu; A. Lobodenko; M. Lokajicek; P. Love; H. J. Lubatti; R. Luna-Garciae; A. L. Lyon; A. K. A. Maciel; D. Mackin; R. Madar; R. Maga?na-Villalba; S. Malik; V. L. Malyshev; Y. Maravin; J. Mart?\\inez-Ortega; R. McCarthy; C. L. McGivern; M. M. Meijer; A. Melnitchouk; D. Menezes; P. G. Mercadante; M. Merkin; A. Meyer; J. Meyer; N. K. Mondal; G. S. Muanza; M. Mulhearn; E. Nagy; M. Naimuddin; M. Narain; R. Nayyar; H. A. Neal; J. P. Negret; P. Neustroev; S. F. Novaes; T. Nunnemann; G. Obrant; J. Orduna; N. Osman; J. Osta; G. J. Otero y Garz?on; 1 M. Owen; M. Padilla; M. Pangilinan; N. Parashar; V. Parihar; S. K. Park; J. Parsons; R. Partridgec; N. Parua; A. Patwa; B. Penning; M. Perfilov; K. Peters; Y. Peters; G. Petrillo; P. P?etroff; R. Piegaia; J. Piper; M. -A. Pleier; P. L. M. Podesta-Lermaf; V. M. Podstavkov; M. -E. Pol; P. Polozov; A. V. Popov; M. Prewitt; D. Price; S. Protopopescu; J. Qian; A. Quadt; B. Quinn; M. S. Rangel; K. Ranjan; P. N. Ratoff; I. Razumov; P. Renkel; P. Rich; M. Rijssenbeek; I. Ripp-Baudot; F. Rizatdinova; M. Rominsky; C. Royon; P. Rubinov; R. Ruchti; G. Safronov; G. Sajot; A. S?anchez-Hern?andez; M. P. Sanders; B. Sanghi; A. S. Santos; G. Savage; L. Sawyer; T. Scanlon; R. D. Schamberger; Y. Scheglov; H. Schellman; T. Schliephake; S. Schlobohm; C. Schwanenberger; R. Schwienhorst; J. Sekaric; H. Severini; E. Shabalina; V. Shary; A. A. Shchukin; R. K. Shivpuri; V. Simak; V. Sirotenko; P. Skubic; P. Slattery; D. Smirnov; K. J. Smith; G. R. Snow; J. Snow; S. Snyder; S. S?oldner-Rembold; L. Sonnenschein; A. Sopczak; M. Sosebee; K. Soustruznik; B. Spurlock; J. Stark; V. Stolin; D. A. Stoyanova; E. Strauss; M. Strauss; D. Strom; L. Stutte; P. Svoisky; M. Takahashi; A. Tanasijczuk; W. Taylor; M. Titov; V. V. Tokmenin; D. Tsybychev; B. Tuchming; C. Tully; P. M. Tuts; L. Uvarov

2010-09-28T23:59:59.000Z

420

Single top and Higgs associated production at the LHC.  

SciTech Connect

We study the production of a standard model (SM) Higgs boson in association with a single top quark and either a light jet or W boson at the LHC with a center of mass energy of 14 TeV. Because of the destructive interference of the contributing SM diagrams, the value of the top Yukawa coupling and the sign of the WWh coupling may be probed for Higgs masses above 150 GeV, where WW and ZZ are the dominant Higgs decays. We consider Higgs masses of m{sub h} = 120, 150, 180, and 200 GeV and devise experimental cuts to extract the signal from SM backgrounds and measure the top Yukawa coupling.

Barger, V.; McCaskey, M.; Shaughnessy, G.; High Energy Physics; Univ. of Wisconsin at Madison; Northwestern Univ.

2010-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "top optical images" 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

Intrinsic Feature-Based Pose Measurement for Medical Imaging ...  

Tracking is done without using extrinsic markers, fiducials, or other added features. Optical images are acquired from two or more cameras with infrared or visible

422

HIGH-SPEED IMAGER FOR FAST, TRANSIENT EVENTS AT NIF  

Facility. HIGH-SPEED IMAGER . FOR FAST, TRANSIENT ... GATOR can convert x rays and other types of radiation to coherent optical radiation, which can be transported and

423

Top quark spin correlations and polarization at the LHC: standard model predictions and effects of anomalous top chromo moments  

E-Print Network (OSTI)

A number of top-spin observables are computed within the Standard Model (SM), at next-to-leading order in the strong and weak gauge couplings for hadronic top-quark anti-quark (ttbar) production and decay at the LHC for center-of-mass energies 7 and 8 TeV. For dileptonic final states we consider the azimuthal angle correlation, the helicity correlation, and the opening angle distribution; for lepton plus jets final states we determine distributions and asymmetries that trace a longitudinal and transverse polarization, respectively, of the t and t-bar samples. The QCD-induced transverse polarization of the top quarks leads to an asymmetry of about 8 percent that should be detectable with existing data. In addition, we investigate the effects of a non-zero chromo-magnetic and chromo-electric dipole moment of the top quark on these and other top-spin observables and associated asymmetries. These observables allow to disentangle the contributions from the real and imaginary parts of these moments.

Werner Bernreuther; Zong-Guo Si

2013-05-09T23:59:59.000Z

424

Search for Single Top Production at the Tevatron  

SciTech Connect

The authors report on a search for Standard Model t-channel and s-channel single top quark production in p{bar p} collisions at a center of mass energy of 1.96 TeV. The authors use a data sample corresponding to 0.7 fb{sup -1} recorded by the upgraded Collider Detector at Fermilab (CDFII) and a data sample corresponding to 370 pb{sup -1} recorded by D0. Both CDF and D0 find no significant evidence for electroweak top quark production and set upper limits at the 95% confidence level on the production cross section.

Gresele, Ambra; /INFN, Trento

2006-05-01T23:59:59.000Z

425

Solid-state optical microscope  

DOE Patents (OSTI)

A solid state optical microscope is described wherein wide-field and high-resolution images of an object are produced at a rapid rate by utilizing conventional optics with a charge-coupled photodiode array. Means for scanning in one of two orthogonal directions are provided, while the charge-coupled photodiode array scans in the other orthogonal direction. Illumination light from the object is incident upon the photodiodes, creating packets of electrons (signals) which are representative of the illuminated object. The signals are then processed, stored in a memory, and finally displayed as a video signal.

Young, I.T.

1981-01-07T23:59:59.000Z

426

Fuel Technologies: Goals, Strategies, and Top Accomplishments; Vehicle Technologies Program (Fact Sheet)  

DOE Green Energy (OSTI)

Fact sheet describes the top accomplishments, goals, and strategies of DOE's Fuel Technologies sub program.

Not Available

2009-04-01T23:59:59.000Z

427

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... 72 DPI Image © 150 DPI Image © 300 DPI Image ©. Title: Homeland Security; Chem., Bio, and Other Threats; Standards for Radiation Detection. ...

428

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... Image Gallery : Image Details. No 72 DPI Version No 150 DPI Version 300 DPI Image. Title: Gold Nano Anchors Put Nanowires in Their Place. ...

429

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... 72 DPI Image © 150 DPI Image © 300 DPI Image ©. Title: Iron-based and Copper-Oxide High-Temperature Superconductors. ...

430

Estimating of pulsed electric fields using optical measurements.  

SciTech Connect

We performed optical electric field measurements ion nanosecond time scales using the electrooptic crystal beta barium borate (BBO). Tests were based on a preliminary bench top design intended to be a proofofprinciple stepping stone towards a modulardesign optical Efield diagnostic that has no metal in the interrogated environment. The long term goal is to field a modular version of the diagnostic in experiments on large scale xray source facilities, or similarly harsh environments.

Flanagan, Timothy McGuire; Chantler, Gary R.

2013-09-01T23:59:59.000Z

431

Broadband phase-preserved optical elevator  

E-Print Network (OSTI)

Phase-preserved optical elevator is an optical device to lift up an entire plane virtually without distortion in light path or phase. Using transformation optics, we have predicted and observed the realization of such a broadband phase-preserved optical elevator, made of a natural homogeneous birefringent crystal without resorting to absorptive and narrowband metamaterials involving time-consuming nano-fabrication. In our demonstration, the optical elevator is designed to lift a sheet upwards, and the phase is verified to be preserved always. The camouflage capability is also demonstrated in the presence of adjacent objects of the same scale at will. The elevating device functions in different surrounding media over the wavelength range of 400-700 nm. Our work opens up prospects for studies of light trapping, solar energy, illusion optics, communication, and imaging.

Yuan Luo; Tiancheng Han; Baile Zhang; Cheng-Wei Qiu; George Barbastathis

2011-09-30T23:59:59.000Z

432

CMISTARK: Python package for the Stark-effect calculation and symmetry classification of linear, symmetric and asymmetric top wavefunctions in dc electric fields  

E-Print Network (OSTI)

The Controlled Molecule Imaging group (CMI) at the Center for Free Electron Laser Science (CFEL) has developed the CMIstark software to calculate, view, and analyze the energy levels of adiabatic Stark energy curves of linear, symmetric top and asymmetric top molecules. The program exploits the symmetry of the Hamiltonian to generate fully labeled adiabatic Stark energy curves. CMIstark is written in Python and easily extendable, while the core numer- ical calculations make use of machine optimized BLAS and LAPACK routines. Calculated energies are stored in HDF5 files for convenient access and programs to extract ASCII data or to generate graphical plots are provided.

Chang, Yuan-Pin; Sartakov, Boris; Küpper, Jochen

2013-01-01T23:59:59.000Z

433

Top quarks at the Tevatron: Measurements of the top quark production and decay with the D0 experiment  

Science Conference Proceedings (OSTI)

This thesis presents two measurements of the to pquark using 230 pb{sup -1} of data recorded with the D0 detector at the Tevatron accelerator. The first measurement determines the top pair production cross section at {radical}s = 1.96 TeV in proton-antiproton collisions. In the standard model of particle physics the top quark decays almost exclusively into a W boson and a b quark. Candidate events are selected by requiring that at least one jet in the event is tagged with the secondary vertex algorithm.

Strandberg, Jonas; /Stockholm U.

2006-04-01T23:59:59.000Z

434

Optical Technology Division 2000 - Image descriptions  

Science Conference Proceedings (OSTI)

... The radiation dose was varied by changing the number of excimer laser pulses ... varying amounts of decreased responsivity at doses as low as 100 ...

435

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... Title: Nanotechnology;Nanomanufacturing;Optical Nano Vision; Checkerboard Scattering Pattern. Description: Resembling ...

436

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... Title: Materials Science, carbon nanotubes, buckypapers. ... MSEL, carbon nanotubes, bucky papers, electrical, optical behavior, network. ...

437

Efficient top-k processing over query-dependent functions  

Science Conference Proceedings (OSTI)

We study the efficient evaluation of top-k queries over data items, where the score of each item is dynamically computed by applying an item-specific function whose parameter value is specified in the query. For example, online retail stores rank items ...

Lin Guo; Sihem Amer Yahia; Raghu Ramakrishnan; Jayavel Shanmugasundaram; Utkarsh Srivastava; Erik Vee

2008-08-01T23:59:59.000Z

438

Precision Top-Quark Mass Measurements at CDF  

Science Conference Proceedings (OSTI)

We present a precision measurement of the top-quark mass using the full sample of Tevatron {radical}s = 1.96 TeV proton-antiproton collisions collected by the CDF II detector, corresponding to an integrated luminosity of 8.7 fb{sup -1}. Using a sample of t{bar t} candidate events decaying into the lepton+jets channel, we obtain distributions of the top-quark masses and the invariant mass of two jets from the W boson decays from data. We then compare these distributions to templates derived from signal and background samples to extract the top-quark mass and the energy scale of the calorimeter jets with in situ calibration. The likelihood fit of the templates from signal and background events to the data yields the single most-precise measurement of the top-quark mass, mtop = 172.85 {+-} 0.71 (stat) {+-} 0.85 (syst) GeV/c{sup 2}.

Aaltonen, T.; /Helsinki Inst. of Phys.; Alvarez Gonzalez, B.; /Oviedo U. /Cantabria Inst. of Phys.; Amerio, S.; /INFN, Padua; Amidei, D.; /Michigan U.; Anastassov, A.; /Northwestern U. /Fermilab; Annovi, A.; /Frascati; Antos, J.; /Comenius U.; Apollinari, G.; /Fermilab; Appel, J.A.; /Fermilab; Arisawa, T.; /Waseda U.; Artikov, A.; /Dubna, JINR /Texas A-M

2012-07-01T23:59:59.000Z

439

Television and Set-Top Box Energy Use and Efficiency  

Science Conference Proceedings (OSTI)

Televisions, their peripheral equipment and other consumer electronics are a fast growing electricity use that threatens to offset many of the efficiency and conservation gains achieved in lighting, appliance use, and heating and cooling. This Technical Update focuses on energy use of televisions and set top boxes in the U.S. residential sector as of 2009.

2009-09-24T23:59:59.000Z

440

Improved determination of the width of the top quark  

SciTech Connect

We present an improved determination of the total width of the top quark, {Gamma}{sub t}, using 5.4 fb{sup -1} of integrated luminosity collected by the D0 Collaboration at the Tevatron p{bar p} Collider. The total width {Gamma}{sub t} is extracted from the partial decay width {Gamma}(t {yields} Wb) and the branching fraction {Beta}(t {yields} Wb). {Gamma}(t {yields} Wb) is obtained from the t-channel single top-quark production cross section and {Beta}(t {yields} Wb) is measured in t{bar t} events. For a top mass of 172.5 GeV, the resulting width is {Gamma}{sub t} = 2.00{sub -0.43}{sup +0.47} GeV. This translates to a top-quark lifetime of {tau}{sub t} = (3.29{sub -0.63}{sup +0.90}) x 10{sup -25} s. We also extract an improved direct limit on the Cabibbo-Kobayashi-Maskawa quark-mixing matrix element 0.81 < |V{sub tb}| {le} 1 at 95% C.L. and a limit of |V{sub tb}| < 0.59 for a high-mass fourth-generation bottom quark assuming unitarity of the fourth-generation quark-mixing matrix.

Abazov V. M.; Abbott B.; Acharya B. S.; Adams M.; Adams T.; Alexeev G. D.; Alkhazov G.; Alton A.; Alverson G.; Aoki M.; Askew A.; Asman B.; Atkins S.; Atramentov O.; Augsten K.; Avila C.; BackusMayes J.; Badaud F.; Bagby L.; Baldin B.; Bandurin D. V.; Banerjee S.; Barberis E.; Baringer P.; Barreto J.; Bartlett J. F.; Bassler U.; Bazterra V.; Bean A.; Begalli M.; Belanger-Champagne C.; Bellantoni L.; Beri S. B.; Bernardi G.; Bernhard R.; Bertram I.; Besancon M.; Beuselinck R.; Bezzubov V. A.; Bhat P. C.; Bhatia S.; Bhatnagar V.; Blazey G.; Blessing S.; Bloom K.; Boehnlein A.; Boline D.; Boos E. E.; Borissov G.; Bose T.; Brandt A.; Brandt O.; Brock R.; Brooijmans G.; Bross A.; Brown D.; Brown J.; Bu X. B.; Buehler M.; Buescher V.; Bunichev V.; Burdin S.; Burnett T. H.; Buszello C. P.; Calpas B.; Camacho-Perez E.; Carrasco-Lizarraga M. A.; Casey C. K.; Castilla-Valdez H.; Chakrabarti S.; Chakraborty D.; Chan M.; Chandra A.; Chapon E.; Chen G.; Chevalier-Thery S.; Cho D. K.; Cho S. W.; Choi S.; Choudhary B.; Cihangir S.; Claes D.; Clutter J.; Cooke M.; Cooper W. E.; Corcoran M.; Couderc F.; Cousinou M. -C.; Croc A.; Cutts D.; Das A.; Davies G.; de Jong S. J.; De La Cruz-Burelo E.; Deliot F.; Demina R.; Denisov D.; Denisov S. P.; Desai S.; Deterre C.; DeVaughan K.; Diehl H. T.; Diesburg M.; Ding P. F.; Dominguez A.; Dorland T.; Dubey A.; Dudko L. V.; Duggan D.; Duperrin A.; Dutt S.; Dyshkant A.; Eads M.; Edmunds D.; Ellison J.; Elvira V. D.; Enari Y.; Evans H.; Evdokimov A.; Evdokimov V. N.; Facini G.; Ferbel T.; Fiedler F.; Filthaut F.; Fisher W.; Fisk H. E.; Fortner M.; Fox H.; Fuess S.; Garcia-Bellido A.; Garcia-Guerra G. A.; Gavrilov V.; Gay P.; Geng W.; Gerbaudo D.; Gerber C. E.; Gershtein Y.; Ginther G.; Golovanov G.; Goussiou A.; Graf C. P.; Grannis P. D.; Greder S.; Greenlee H.; Greenwood Z. D.; Gregores E. M.; Grenier G.; Gris Ph.; Grivaz J. -F.; Grohsjean A.; Gruenendahl S.; Gruenewald M. W.; Guillemin T.; Gutierrez G.; Gutierrez P.; Haas A.; Hagopian S.; Haley J.; Han L.; Harder K.; Harel A.; Hauptman J. M.; Hays J.; Head T.; Hebbeker T.; Hedin D.; Hegab H.; Heinson A. P.; Heintz U.; Hensel C.; La Cruz I. Heredia-De; Herner K.; Hesketh G.; Hildreth M. D.; Hirosky R.; Hoang T.; Hobbs J. D.; Hoeneisen B.; Hohlfeld M.; Hubacek Z.; Hynek V.; Iashvili I.; Ilchenko Y.; Illingworth R.; Ito A. S.; Jabeen S.; Jaffre M.; Jamin D.; Jayasinghe A.; Jesik R.; Johns K.; Johnson M.; Jonckheere A.; Jonsson P.; Joshi J.; Jung A. W.; Juste A.; Kaadze K.; Kajfasz E.; Karmanov D.; Kasper P. A.; Katsanos I.; Kehoe R.; Kermiche S.; Khalatyan N.; Khanov A.; Kharchilava A.; Kharzheev Y. N.; Kohli J. M.; Kozelov A. V.; Kraus J.; Kulikov S.; Kumar A.; Kupco A.; Kurca T.; Kuzmin V. A.; Lammers S.; Landsberg G.; Lebrun P.; Lee H. S.; Lee S. W.; Lee W. M.; Lellouch J.; Li H.; Li L.; Li Q. Z.; Lietti S. M.; Lim J. K.; Lincoln D.; Linnemann J.; Lipaev V. V.; Lipton R.; Liu Y.; Lobodenko A.; Lokajicek M.; de Sa R. Lopes; Lubatti H. J.; Luna-Garcia R.; Lyon A. L.; Maciel A. K. A.; Mackin D.; Madar R.; Magana-Villalba R.; Malik S.; Malyshev V. L.; Maravin Y.; Martinez-Ortega J.; McCarthy R.; McGivern C. L.; Meijer M. M.; Melnitchouk A.; Menezes D.; Mercadante P. G.; Merkin M.; et al.

2012-05-04T23:59:59.000Z

Note: This page contains sample records for the topic "top optical images" 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

Semitransparent Organic Photovoltaic Cells with Laminated Top Electrode  

E-Print Network (OSTI)

Semitransparent Organic Photovoltaic Cells with Laminated Top Electrode Jung-Yong Lee, Steve T demonstrate semitransparent small molecular weight organic photovoltaic cells using a laminated silver electrodes, nanowires O rganic photovoltaic cells are considered a promis- ing solar cell technology because

Cui, Yi

442

Top-K nearest keyword search on large graphs  

Science Conference Proceedings (OSTI)

It is quite common for networks emerging nowadays to have labels or textual contents on the nodes. On such networks, we study the problem of top-k nearest keyword (k-NK) search. In a network G modeled as an undirected graph, each node is ...

Miao Qiao, Lu Qin, Hong Cheng, Jeffrey Xu Yu, Wentao Tian

2013-08-01T23:59:59.000Z

443

An Improved determination of the width of the top quark  

SciTech Connect

We present an improved determination of the total width of the top quark, {Lambda}{sub t}, using 5.4 fb{sup -1} of integrated luminosity collected by the D0 Collaboration at the Tevatron p{bar p} Collider. The total width {Lambda}{sub t} is extracted from the partial decay width {Lambda}(t {yields} Wb) and the branching fraction {Beta}(t {yields} Wb). {Lambda}(t {yields} Wb) is obtained from the t-channel single top quark production cross section and {Beta}(t {yields} Wb) is measured in t{bar t} events. For a top mass of 172.5 GeV, the resulting width is {Lambda}{sub t} = 2.00{sub -0.43}{sup +0.47} GeV. This translates to a top-quark lifetime of {tau}{sub t} = (3.29{sub -0.63}{sup +0.90}) x 10{sup -25} s. We also extract an improved direct limit on the CKM matrix element 0.81 < |V{sub tb}| {le} 1 at 95% C.L. and a limit of |V{sub tb'}| < 0.59 for a high mass fourth generation bottom quark assuming unitarity of the fourth generation quark mixing matrix.

Abazov, Victor Mukhamedovich; /Dubna, JINR; Abbott, Braden Keim; /Oklahoma U.; Acharya, Bannanje Sripath; /Tata Inst.; Adams, Mark Raymond; /Illinois U., Chicago; Adams, Todd; /Florida State U.; Alexeev, Guennadi D.; /Dubna, JINR; Alkhazov, Georgiy D.; /St. Petersburg, INP; Alton, Andrew K.; /Michigan U. /Augustana Coll., Sioux Falls; Alverson, George O.; /Northeastern U.; Aoki, Masato; /Fermilab; Askew, Andrew Warren; /Florida State U. /Stockholm U.

2012-01-01T23:59:59.000Z

444

Velocity map imaging of ions and electrons using electrostatic lenses: Application in photoelectron and photofragment ion imaging of molecular oxygen  

Science Conference Proceedings (OSTI)

The application of electrostatic lenses is demonstrated to give a substantial improvement of the two-dimensional (2D) ion/electron imaging technique. This combination of ion lens optics and 2D detection makes “velocity map imaging” possible

André T. J. B. Eppink; David H. Parker

1997-01-01T23:59:59.000Z

445

Tracking Study for Top-off Safety Validation at SSRL  

SciTech Connect

A tracking study was performed at SSRL to identify necessary controls and to prove the safety of top-off operation from radiation hazard under such conditions. The safety rationale, tracking setup and the results are presented. Top-off operational mode has become a trend for existing and planned third-generation storage ring light sources for the many benefits such as increased average brightness, improved thermal stability and elimination of the interruption to user experiments due to traditional injection [1, 2]. Unlike the traditional decay mode injection which happens a few times a day and during which the photon beamline shutters are closed, top-off mode injection requires photon beamline shutters to remain open during injection and occurs much more frequently, from once every 5 seconds to once every 30 minutes. Therefore injection may be transparent to user experiments and the stored current variation can be significantly reduced. For a facility equipped with a full-energy injector, the biggest challenge to the implementation of the top-off mode may be the control of radiation hazard. Studies at ALS and SSRL [2, 3] have shown that a single injected electron pulse that enters the photon beamline and exits the radiation shield wall would cause unacceptable radiation doses on the experimental floor. For the protection of users and experimental equipment, it is hence a prerequisite for top-off operation to establish controls that absolutely prevent such occurrences. Similar to other facilities such as ALS and APS [2, 4], tracking simulations were conducted at SSRL to identify the control measures, define the specifications and prove the radiation safety. However, a different approach toward the proof of safety is taken at SSRL. In this paper we first describe the SSRL accelerator complex with emphasis on the aspects related to top-off in section 2. The general considerations and requirements for top-off are presented in section 3. Section 4 and 5 give a detailed description of the tracking setup and results. Concluding remarks are given in section 6.

Huang, Xiaobiao

2011-08-19T23:59:59.000Z

446

Medical imaging systems  

DOE Patents (OSTI)

A medical imaging system provides simultaneous rendering of visible light and fluorescent images. The system may employ dyes in a small-molecule form that remains in a subject's blood stream for several minutes, allowing real-time imaging of the subject's circulatory system superimposed upon a conventional, visible light image of the subject. The system may also employ dyes or other fluorescent substances associated with antibodies, antibody fragments, or ligands that accumulate within a region of diagnostic significance. In one embodiment, the system provides an excitation light source to excite the fluorescent substance and a visible light source for general illumination within the same optical guide that is used to capture images. In another embodiment, the system is configured for use in open surgical procedures by providing an operating area that is closed to ambient light. More broadly, the systems described herein may be used in imaging applications where a visible light image may be usefully supplemented by an image formed from fluorescent emissions from a fluorescent substance that marks areas of functional interest.

Frangioni, John V. (Wayland, MA)

2012-07-24T23:59:59.000Z

447

Device for imaging scenes with very large ranges of intensity  

SciTech Connect

A device for imaging scenes with a very large range of intensity having a pair of polarizers, a primary lens, an attenuating mask, and an imaging device optically connected along an optical axis. Preferably, a secondary lens, positioned between the attenuating mask and the imaging device is used to focus light on the imaging device. The angle between the first polarization direction and the second polarization direction is adjustable.

Deason, Vance Albert (Idaho Falls, ID)

2011-11-15T23:59:59.000Z

448

OPTICAL analysis of solar facility heliostats  

DOE Green Energy (OSTI)

An experimentally verified simple analytical model, based on classical optical aberrations, is derived and predicts the power reception of a central receiver solar facility. A laboratory simulation was made of a typical heliostat, and its images were photographed and measured at several angles of incidence. The analytically predicted image size is in agreement with experiment to within less than 10% over an incident angle range of 60 degrees. Image size for several of the heliostats in the Sandia-ERDA Solar Thermal Test Facility array were calculated throughout a day and compared with ideal images and the size of the receiver. The optical parameters of the system and the motion of the sun were found to severely affect the design and optimization of any solar thermal facility. This analysis shows that it is the aberration astigmatism which governs the solar image size at the receiver. Image growth is minimal when heliostats are used at small angles of incidence, which usually corresponds to a limited operating time of two to three hours. However, image size is markedly increased at large angles of incidence. The principal result is that the predominant sources of image enlargement are identified and measures for minimizing these enlargements are presented. This analysis considers only the idealized optical problem and does not consider the pragmatic errors associated with implementation and operation of a heliostat array.

Igel, E.; Hughes, R.L.

1977-05-01T23:59:59.000Z

449

Overview of image reconstruction  

SciTech Connect

Image reconstruction (or computerized tomography, etc.) is any process whereby a function, f, on R/sup n/ is estimated from empirical data pertaining to its integrals, ..integral..f(x) dx, for some collection of hyperplanes of dimension k < n. The paper begins with background information on how image reconstruction problems have arisen in practice, and describes some of the application areas of past or current interest; these include radioastronomy, optics, radiology and nuclear medicine, electron microscopy, acoustical imaging, geophysical tomography, nondestructive testing, and NMR zeugmatography. Then the various reconstruction algorithms are discussed in five classes: summation, or simple back-projection; convolution, or filtered back-projection; Fourier and other functional transforms; orthogonal function series expansion; and iterative methods. Certain more technical mathematical aspects of image reconstruction are considered from the standpoint of uniqueness, consistency, and stability of solution. The paper concludes by presenting certain open problems. 73 references. (RWR)

Marr, R.B.

1980-04-01T23:59:59.000Z

450

Speckle-free laser imaging  

E-Print Network (OSTI)

Many imaging applications require increasingly bright illumination sources, motivating the replacement of conventional thermal light sources with light emitting diodes (LEDs), superluminescent diodes (SLDs) and lasers. Despite their brightness, lasers and SLDs are poorly suited for full-field imaging applications because their high spatial coherence leads to coherent artifacts known as speckle that corrupt image formation. We recently demonstrated that random lasers can be engineered to provide low spatial coherence. Here, we exploit the low spatial coherence of specifically-designed random lasers to perform speckle-free full-field imaging in the setting of significant optical scattering. We quantitatively demonstrate that images generated with random laser illumination exhibit higher resolution than images generated with spatially coherent illumination. By providing intense laser illumination without the drawback of coherent artifacts, random lasers are well suited for a host of full-field imaging applicatio...

Redding, Brandon; Cao, Hui

2011-01-01T23:59:59.000Z

451

Van Berkel receives top Science and Technology honor at UT-Battelle's  

NLE Websites -- All DOE Office Websites (Extended Search)

Fred Strohl Fred Strohl Communications 865.574.4165 Van Berkel receives top Science and Technology honor at UT-Battelle's 2013 Awards Night Gary J. Van Berkel, David Fowler and Donald Cross Gary J. Van Berkel, David Fowler and Donald Cross (hi-res image) OAK RIDGE, Tenn., Nov. 18, 2013 - Gary J. Van Berkel of Oak Ridge National Laboratory's Chemical Sciences Division has earned the ORNL Director's Award for Outstanding Individual Accomplishment in Science and Technology. Van Berkel was honored Friday night during the annual Awards Night event hosted by UT-Battelle, the management and operating contractor of ORNL. The award recognizes Van Berkel's sustained leadership and innovation in the development of disruptive sampling systems for mass spectrometry, resulting in multiple commercial licenses and new product offerings. He was earlier

452

Photonic Astronomy and Quantum Optics  

E-Print Network (OSTI)

Quantum optics potentially offers an information channel from the Universe beyond the established ones of imaging and spectroscopy. All existing cameras and all spectrometers measure aspects of the first-order spatial and/or temporal coherence of light. However, light has additional degrees of freedom, manifest in the statistics of photon arrival times, or in the amount of photon orbital angular momentum. Such quantum-optical measures may carry information on how the light was created at the source, and whether it reached the observer directly or via some intermediate process. Astronomical quantum optics may help to clarify emission processes in natural laser sources and in the environments of compact objects, while high-speed photon-counting with digital signal handling enables multi-element and long-baseline versions of the intensity interferometer. Time resolutions of nanoseconds are required, as are large photon fluxes, making photonic astronomy very timely in an era of large telescopes.

Dainis Dravins

2007-01-09T23:59:59.000Z

453

Final Report: Towards Optimal Petascale Simulations (TOPS), ER25785  

SciTech Connect

Multiscale, multirate scientific and engineering applications in the SciDAC portfolio possess resolution requirements that are practically inexhaustible and demand execution on the highest-capability computers available, which will soon reach the petascale. While the variety of applications is enormous, their needs for mathematical software infrastructure are surprisingly coincident; moreover the chief bottleneck is often the solver. At their current scalability limits, many applications spend a vast majority of their operations in solvers, due to solver algorithmic complexity that is superlinear in the problem size, whereas other phases scale linearly. Furthermore, the solver may be the phase of the simulation with the poorest parallel scalability, due to intrinsic global dependencies. This project brings together the providers of some of the worldâ??s most widely distributed, freely available, scalable solver software and focuses them on relieving this bottleneck for many specific applications within SciDAC, which are representative of many others outside. Solver software directly supported under TOPS includes: hypre, PETSc, SUNDIALS, SuperLU, TAO, and Trilinos. Transparent access is also provided to other solver software through the TOPS interface. The primary goals of TOPS are the development, testing, and dissemination of solver software, especially for systems governed by PDEs. Upon discretization, these systems possess mathematical structure that must be exploited for optimal scalability; therefore, application-targeted algorithmic research is included. TOPS software development includes attention to high performance as well as interoperability among the solver components. Support for integration of TOPS solvers into SciDAC applications is also directly supported by this proposal. The role of the UCSD PI in this overall CET, is one of direct interaction between the TOPS software partners and various DOE applications scientists â?? specifically toward magnetohydrodynamics (MHD) simulations with the Center for Extended Magnetohydrodynamic Modeling (CEMM) SciDAC and Applied Partial Differential Equations Center (APDEC) SciDAC, and toward core-collapse supernova simulations with the previous Terascale Supernova Initiative (TSI) SciDAC and in continued work on INCITE projects headed by Doug Swesty, SUNY Stony Brook. In addition to these DOE applications scientists, the UCSD PI works to bring leading-edge DOE solver technology to applications scientists in cosmology and large-scale galactic structure formation. Unfortunately, the funding for this grant ended after only two years of its five-year duration, in August 2008, due to difficulties at DOE in transferring the grant to the PIâ??s new faculty position at Southern Methodist University. Therefore, this report only describes two yearsâ?? worth of effort.

Daniel R. Reynolds

2011-04-15T23:59:59.000Z

454

System and method for ultrafast optical signal detecting via a synchronously coupled anamorphic light pulse encoded laterally  

DOE Patents (OSTI)

In one general embodiment, a method for ultrafast optical signal detecting is provided. In operation, a first optical input signal is propagated through a first wave guiding layer of a waveguide. Additionally, a second optical input signal is propagated through a second wave guiding layer of the waveguide. Furthermore, an optical control signal is applied to a top of the waveguide, the optical control signal being oriented diagonally relative to the top of the waveguide such that the application is used to influence at least a portion of the first optical input signal propagating through the first wave guiding layer of the waveguide. In addition, the first and the second optical input signals output from the waveguide are combined. Further, the combined optical signals output from the waveguide are detected. In another general embodiment, a system for ultrafast optical signal recording is provided comprising a waveguide including a plurality of wave guiding layers, an optical control source positioned to propagate an optical control signal towards the waveguide in a diagonal orientation relative to a top of the waveguide, at least one optical input source positioned to input an optical input signal into at least a first and a second wave guiding layer of the waveguide, and a detector for detecting at least one interference pattern output from the waveguide, where at least one of the interference patterns results from a combination of the optical input signals input into the first and the second wave guiding layer. Furthermore, propagation of the optical control signal is used to influence at least a portion of the optical input signal propagating through the first wave guiding layer of the waveguide.

Heebner, John E. (Livermore, CA)

2010-08-03T23:59:59.000Z

455

Top Open Data per Category | OpenEI Community  

Open Energy Info (EERE)

Top Open Data per Category Top Open Data per Category Home > Groups > Energy Data Initiative (EDI) Ianjkalin's picture Submitted by Ianjkalin(84) Contributor 17 February, 2013 - 20:16 Open Data It's always a tough question to answer, "What are the best open datasets from the government?" People generally understand the value of things like weather and GPS data, but if the question is from an experienced health care or energy entrepreneur, they are looking for something much more specific. To be really compelling the data has to be highly relevant, accessible through a technology like an application programming interface (API), or just simply new. A quick glance at sites like Data.gov or science.gov demonstrate that the U.S. government is sitting on millions of separately definable datasets. Therefore, it is impossible to

456

ITP's Top Low- or No-Cost Improvements  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

ITP's Top Low- or No-Cost ITP's Top Low- or No-Cost Improvements Michael B. Muller Rutgers University Keith A. Woodbury, Ph.D. University of Alabama Kelly Kissock Ph.D., P.E. University of Dayton Michael B Muller * Mechanical Engineer * Developed and maintains IAC database * Qualified Specialist and Energy Expert in - Steam, Pumps, Fans, & Process Heating * Has conducted multiple ESA, IAC, and similar style industrial energy assessments. Topics to be Covered: * Overview of: - Low/No Cost Improvements - ITP Assessments Specific LNC Improvements resulting from: * IAC Assessments * ESA: Steam * ESA: Compressed Air (Keith A. Woodbury) * ESA: Process Heating (Dr. Kelly Kissock) Why are these Opportunities Missed? * Perceived Safety/Avoiding Risk

457

Top Crop Wind Farm (Phase II) | Open Energy Information  

Open Energy Info (EERE)

(Phase II) (Phase II) Jump to: navigation, search Name Top Crop Wind Farm (Phase II) Facility Top Crop Wind Farm (Phase II) Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Horizon-EDPR Developer Horizon-EDPR Location Grundy County IL Coordinates 41.202313°, -88.530078° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.202313,"lon":-88.530078,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

458

Sequoia tops Graph 500 list of 'big data' supercomputers  

NLE Websites -- All DOE Office Websites (Extended Search)

ATL062113_graph ATL062113_graph 06/21/2013 The Livermore Lab's Sequoia supercomputer topped the biannual Graph 500 list of the world's fastest systems for "big data" this week. The Graph 500 benchmark measures the speed with which a supercomputer can "connect the dots" within a massive set of data. Sequoia traversed 15,363 connections per second. Sequoia tops Graph 500 list of 'big data' supercomputers Donald B Johnston, LLNL, (925) 423-4902, johnston19@llnl.gov LLNL's 20 petaflops Sequoia supercomputer has retained its No. 1 ranking on the Graph 500 list, a measure of a system's ability to conduct analytic calculations -- finding the proverbial needle in the haystack. An IBM Blue Gene Q system, Sequoia was able to traverse 15,363 giga edges per second on a scale of 40 graph (a graph with 2^40 vertices). The new

459

America's Next Top Energy Innovator Challenge | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Challenge Challenge America's Next Top Energy Innovator Challenge The America's Next Top Energy Innovator Challenge, a part of the Startup America initiative, made it easier for start-ups to use inventions and technology developed at the U.S. Department of Energy's 17 National Laboratories and the Y-12 National Security Complex. The companies highlighted below signed option agreements allowing them to license valuable, cutting-edge technologies from one of the labs. You can see the winners of the 2012 competition here. We counted your 'likes' and then left it up to the panel of experts to evaluate which three of these companies are selected to attend the 2012 ARPA-E Energy Innovation Summit, the premier annual gathering of clean energy investors and innovators around the country.

460

Top of the World (Siemens) | Open Energy Information  

Open Energy Info (EERE)

Siemens) Siemens) Jump to: navigation, search Name Top of the World (Siemens) Facility Top of the World (Siemens) Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Duke Energy Carolinas LLC Developer Duke Energy Carolinas LLC Energy Purchaser PacifiCorp Location 4 miles northeast of Glenrock WY Coordinates 42.914132°, -105.691223° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.914132,"lon":-105.691223,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "top optical images" 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

Top Green Energy Technologies Inc | Open Energy Information  

Open Energy Info (EERE)

Green Energy Technologies Inc Green Energy Technologies Inc Jump to: navigation, search Name Top Green Energy Technologies Inc Place Jhunan, Taiwan Zip 350 Sector Solar Product Top Green is a manufacturer of both monocrystalline and multicrystalline solar PV cells as well as polysilicon. Coordinates 24.690121°, 120.869019° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":24.690121,"lon":120.869019,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

462

Top of Iowa III Wind Farm | Open Energy Information  

Open Energy Info (EERE)

Wind Farm Wind Farm Jump to: navigation, search Name Top of Iowa III Wind Farm Facility Top of Iowa III Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Madison Gas & Electric Developer Midwest Renewable Energy Projects Energy Purchaser Madison Gas & Electric Location Worth County IA Coordinates 43.361088°, -93.294282° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":43.361088,"lon":-93.294282,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

463

America's Next Top Energy Innovator Challenge | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Challenge Challenge America's Next Top Energy Innovator Challenge The America's Next Top Energy Innovator Challenge, a part of the Startup America initiative, made it easier for start-ups to use inventions and technology developed at the U.S. Department of Energy's 17 National Laboratories and the Y-12 National Security Complex. The companies highlighted below signed option agreements allowing them to license valuable, cutting-edge technologies from one of the labs. You can see the winners of the 2012 competition here. We counted your 'likes' and then left it up to the panel of experts to evaluate which three of these companies are selected to attend the 2012 ARPA-E Energy Innovation Summit, the premier annual gathering of clean energy investors and innovators around the country.

464

Westinghouse earns top award from quality new mexico  

NLE Websites -- All DOE Office Websites (Extended Search)

Earns Top Award Earns Top Award From Quality New Mexico CARLSBAD, N.M., January 11, 2000 - The Westinghouse Waste Isolation Division led a group of three Carlsbad organizations recognized by Quality New Mexico as a recipient of the highest honor in the 1999 New Mexico Quality Awards program. Westinghouse was one of only two organizations statewide to garner the coveted Quality New Mexico Zia Award. Los Alamos National Bank was the other Zia winner. " I congratulate the leaders and employees of the Westinghouse Waste Isolation Division and Los Alamos National Bank for receiving the state' s highest award for quality achievement," said New Mexico Gov. Gary Johnson, who attended the awards presentation. " The fact that your organizations are recipients of only the third and fourth

465

America's Next Top Energy Innovator Challenge | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Challenge Challenge America's Next Top Energy Innovator Challenge The America's Next Top Energy Innovator Challenge, a part of the Startup America initiative, made it easier for start-ups to use inventions and technology developed at the U.S. Department of Energy's 17 National Laboratories and the Y-12 National Security Complex. The companies highlighted below signed option agreements allowing them to license valuable, cutting-edge technologies from one of the labs. You can see the winners of the 2012 competition here. We counted your 'likes' and then left it up to the panel of experts to evaluate which three of these companies are selected to attend the 2012 ARPA-E Energy Innovation Summit, the premier annual gathering of clean energy investors and innovators around the country.

466

Top of Iowa II Wind Farm | Open Energy Information  

Open Energy Info (EERE)

of Iowa II Wind Farm of Iowa II Wind Farm Jump to: navigation, search Name Top of Iowa II Wind Farm Facility Top of Iowa II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Iberdrola Renewables Developer Iberdrola Renewables Location Worth County IA Coordinates 43.361088°, -93.294282° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":43.361088,"lon":-93.294282,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

467

Determining Top Quark Couplings at the LHC: Snowmass White Paper  

E-Print Network (OSTI)

Top quarks are a prime system for hunting for new physics. Nonetheless, two decades on from their discovery few of their couplings have been measured to high precision. We present an overview of current determinations and the expected sensitivities with 300 fb-1 and 3000 fb-1 of 14 TeV LHC data. In addition to direct limits on the top quark's renormalizable couplings to Standard Model bosons, we also explore what bounds can be set on the coefficients of higher-dimension operators, taking particular four-fermion operators that do not interfere with QCD as a test case. Every coupling we consider will benefit greatly from a dedicated study at the future LHC. Some measurements, like the irrelevant operators, are systematics-limited and will saturate in the near-term. Others, like the important ttbar+Higgs coupling, involve rare processes and thus demand as much data as possible.

Jahred Adelman; Matthew Baumgart; Aran Garcia-Bellido; Andrey Loginov

2013-08-24T23:59:59.000Z

468

Forward-backward asymmetry in top quark-antiquark production  

SciTech Connect

We present a measurement of forward-backward asymmetry in top quark-antiquark production in proton-antiproton collisions in the final state containing a lepton and at least four jets. Using a data set corresponding to an integrated luminosity of 5.4 fb{sup -1}, collected by the D0 experiment at the Fermilab Tevatron Collider, we measure the t{bar t} forward-backward asymmetry to be (9.2 {+-} 3.7)% at the reconstruction level. When corrected for detector acceptance and resolution, the asymmetry is found to be (19.6 {+-} 6.5)%. We also measure a corrected asymmetry based on the lepton from a top quark decay, found to be (15.2 {+-} 4.0)%. The results are compared to predictions based on the next-to-leading-order QCD generator mc@nlo. The sensitivity of the measured and predicted asymmetries to the modeling of gluon radiation is discussed.

Abazov, V.M.; Abbott, B.; Acharya, B. S.; Adams, M.; Adams, T.; Alexeev, G. D.; Alkhazov, G.; Alton, A.; Alverson, G.; Alves, G. A.; Aoki, M.; Arov, M.; Askew, A.; Asman, B.; Atramentov, O.; Avila, C.; BackusMayes, J.; Badaud, F.; Bagby, L.; Baldin, B.; Bandurin, D. V.; Banerjee, S.; Barberis, E.; Baringer, P.; Barreto, J.; Bartlett, J. F.; Bassler, U.; Bazterra, V.; Beale, S.; Bean, A.; Begalli, M.; Begel, M.; Belanger-Champagne, C.; Bellantoni, L.; Beri, S. B.; Bernardi, G.; Bernhard, R.; Bertram, I.; Besancon, M.; Beuselinck, R.; Bezzubov, V. A.; Bhat, P. C.; Bhatnagar, V.; Blazey, G.; Blessing, S.; Bloom, K.; Boehnlein, A.; Boline, D.; Boos, E. E.; Borissov, G.; Bose, T.; Brandt, A.; Brandt, O.; Brock, R.; Brooijmans, G.; Bross, A.; Brown, D.; Brown, J.; Bu, X. B.; Buehler, M.; Buescher, V.; Bunichev, V.; Burdin, S.; Burnett, T. H.; Buszello, C. P.; Calpas, B.; Camacho-Perez, E.; Carrasco-Lizarraga, M. A.; Casey, B. C. K.; Castilla-Valdez, H.; Chakrabarti, S.; Chakraborty, D.; Chan, K. M.; Chandra, A.; Chen, G.; Chevalier-Thery, S.; Cho, D. K.; Cho, S. W.; Choi, S.; Choudhary, B.; Cihangir, S.; Claes, D.; Clutter, J.; Cooke, M.; Cooper, W. E.; Corcoran, M.; Couderc, F.; Cousinou, M. -C.; Croc, A.; Cutts, D.; Das, A.; Davies, G.; De, K.; de Jong, S. J.; De La Cruz-Burelo, E.; Deliot, F.; Demarteau, M.; Demina, R.; Denisov, D.; Denisov, S. P.; Desai, S.; Deterre, C.; DeVaughan, K.; Diehl, H. T.; Diesburg, M.; Ding, P. F.; Dominguez, A.; Dorland, T.; Dubey, A.; Dudko, L. V.; Duggan, D.; Duperrin, A.; Dutt, S.; Dyshkant, A.; Eads, M.; Edmunds, D.; Ellison, J.; Elvira, V. D.; Enari, Y.; Evans, H.; Evdokimov, A.; Evdokimov, V. N.; Facini, G.; Ferbel, T.; Fiedler, F.; Filthaut, F.; Fisher, W.; Fisk, H. E.; Fortner, M.; Fox, H.; Fuess, S.; Garcia-Bellido, A.; Gavrilov, V.; Gay, P.; Geng, W.; Gerbaudo, D.; Gerber, C. E.; Gershtein, Y.; Ginther, G.; Golovanov, G.; Goussiou, A.; Grannis, P. D.; Greder, S.; Greenlee, H.; Greenwood, Z. D.; Gregores, E. M.; Grenier, G.; Gris, Ph; Grivaz, J. -F.; Grohsjean, A.; Gruenendahl, S.; Gruenewald, M. W.; Guillemin, T.; Guo, F.; Gutierrez, G.; Gutierrez, P.; Haas, A.; Hagopian, S.; Haley, J.; Han, L.; Harder, K.; Harel, A.; Hauptman, J. M.; Hays, J.; Head, T.; Hebbeker, T.; Hedin, D.; Hegab, H.; Heinson, A. P.; Heintz, U.; Hensel, C.; Heredia-De La Cruz, I.; Herner, K.; Hesketh, G.; Hildreth, M. D.; Hirosky, R.; Hoang, T.; Hobbs, J. D.; Hoeneisen, B.; Hohlfeld, M.; Hubacek, Z.; Huske, N.; Hynek, V.; Iashvili, I.; Ilchenko, Y.; Illingworth, R.; Ito, A. S.; Jabeen, S.; Jaffre, M.; Jamin, D.; Jayasinghe, A.; Jesik, R.; Johns, K.; Johnson, M.; Johnston, D.; Jonckheere, A.; Jonsson, P.; Joshi, J.; Jung, A. W.; Juste, A.; Kaadze, K.; Kajfasz, E.; Karmanov, D.; Kasper, P. A.; Katsanos, I.; Kehoe, R.; Kermiche, S.; Khalatyan, N.; Khanov, A.; Kharchilava, A.; Kharzheev, Y. N.; Kirby, M. H.; Kohli, J. M.; Kozelov, A. V.; Kraus, J.; Kulikov, S.; Kumar, A.; Kupco, A.; Kurca, T.; Kuzmin, V. A.; Kvita, J.; Lammers, S.; Landsberg, G.; Lebrun, P.; Lee, H. S.; Lee, S. W.; Lee, W. M.; Lellouch, J.; Li, L.; Li, Q. Z.; Lietti, S. M.; Lim, J. K.; Lincoln, D.; Linnemann, J.; Lipaev, V. V.; Lipton, R.; Liu, Y.; Liu, Z.; Lobodenko, A.; Lokajicek, M.; de Sa, R. Lopes; Lubatti, H. J.; Luna-Garcia, R.; Lyon, A. L.; Maciel, A. K. A.; Mackin, D.; Madar, R.; Magana-Villalba, R.; Malik, S.; Malyshev, V. L.; Maravin, Y.; Martinez-Ortega, J.; McCarthy, R.; McGivern, C. L.; Meijer, M. M.; Melnitchouk, A.; Menezes, D.; Mercadante, P. G.; Merkin, M.; Meyer, A.; Meyer, J.; Miconi, F.; Mondal, N. K.; Muanza, G. S.; Mulhearn, M.; Nagy, E.; Naimuddin, M.; Narain, M.; Nayyar, R.; Neal, H. A.; Negret, J. P.; Neustroev, P.; Novaes, S. F.; Nunnemann, T.; Obrant, G.; Orbaker, D.; Orduna, J.; Osman, N.; Osta, J.; et. al.

2011-12-12T23:59:59.000Z

469

System for generating power with top pressure of blast furnaces  

SciTech Connect

A system for generating power with the top pressure of a plurality of blast furnaces by leading a gas from the top of the furnaces into turbines, corresponding in number to the furnaces, to convert the pressure of the gas into rotational energy and generate power by a generator coupled to the turbines. The turbines connected to the furnaces by main gas channels individually are aligned with their rotor shafts connected together into a single shaft which is connected to the generator. Preferably each pair of the adjacent turbines are arranged with their intake ends positioned in the center of the arrangement so that the gas flows toward the exhaust ends at both sides, or with their intake ends positioned at both sides to cause the gas to flow toward the exhaust ends in the center. The single shaft connecting the pair of turbines together has no intermediate bearing between these turbines.

Kihara, H.; Mizota, T.; Ohmachi, M.; Takao, K.; Toki, K.; Tomita, Y.

1983-06-14T23:59:59.000Z

470

Relativistic electromagnetic flat top solitons and their stability  

Science Conference Proceedings (OSTI)

The inclusion of ion response in the study of relativistically intense electromagnetic laser pulse propagation in plasma yields certain distinct varieties of single peak solitonic structures. A flat top slow moving structure (for which the various fields have a flat profile over a wide spatial range) is one such solution. A detailed characterization of these solutions along with the eigen spectrum of their formation in the parameter space has been presented. The evolution of this particular solution is studied in detail with the help of a coupled fluid Maxwell set of equations. The study shows that the flat top solution is unstable. The instability is characterized as the backward Brillouin instability for which the electron quiver velocity plays the role of the effective temperature.

Sundar, Sita; Das, Amita; Saxena, Vikrant; Kaw, Predhiman; Sen, Abhijit [Institute for Plasma Research, Bhat, Gandhinagar-382428 (India)

2011-11-15T23:59:59.000Z

471

Single top quark production cross section at the Tevatron  

E-Print Network (OSTI)

The latest results on the measurements of electroweak top-quark production at the Tevatron are presented with the full RunII dataset. The CDF and D0 Collaborations have performed measurements of the s, t, and s+t channels in both l+jets and MET+jets final states. Evidence for the production of the s channel is presented for the first time.

Aran Garcia-Bellido; for the CDF; D0 Collaborations

2013-10-12T23:59:59.000Z

472

Top quark pair production cross section at the Tevatron  

SciTech Connect

Top quark pair production cross section has been measured at the Tevatron by CDF and D0 collaborations using different channels and methods, in order to test standard model predictions, and to search for new physics hints affecting the t{bar t} production mechanism or decay. Measurements are carried out with an integrated luminosity of 1.0 to 2.0 fb{sup -1}, and are found to be consistent with standard model expectations.

Cortiana, Giorgio; /INFN, Padua /Padua U.

2008-04-01T23:59:59.000Z

473

Top Quark Production Cross Section at the Tevatron  

SciTech Connect

An overview of the preliminary results of the top quark pair production cross section measurements at a center-of-mass energy of 1.96 TeV carried out by the CDF and D0 collaborations is presented. The data samples used for the analyses are collected in the current Tevatron run and correspond to an integrated luminosity from 360 pb{sup -1} up to 760 pb{sup -1}.

Shabalina, E.; /Chicago U.

2006-05-01T23:59:59.000Z

474

NREL Mesa Top PV System | Open Energy Information  

Open Energy Info (EERE)

NREL Mesa Top PV System NREL Mesa Top PV System Jump to: navigation, search Name NREL Mesa Top PV System Facility National Renewable Energy Laboratory Sector Solar Facility Type Photovoltaic Owner SunEdison Solar Developer SunEdison Solar Energy Purchaser National Renewable Energy Laboratory Address 15500 Denver West Parkway Location Golden, CO Coordinates 39.744550202°, -105.174608231° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.744550202,"lon":-105.174608231,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

475

Event group importance measures for top event frequency analyses  

SciTech Connect

Three traditional importance measures, risk reduction, partial derivative, nd variance reduction, have been extended to permit analyses of the relative importance of groups of underlying failure rates to the frequencies of resulting top events. The partial derivative importance measure was extended by assessing the contribution of a group of events to the gradient of the top event frequency. Given the moments of the distributions that characterize the uncertainties in the underlying failure rates, the expectation values of the top event frequency, its variance, and all of the new group importance measures can be quantified exactly for two familiar cases: (1) when all underlying failure rates are presumed independent, and (2) when pairs of failure rates based on common data are treated as being equal (totally correlated). In these cases, the new importance measures, which can also be applied to assess the importance of individual events, obviate the need for Monte Carlo sampling. The event group importance measures are illustrated using a small example problem and demonstrated by applications made as part of a major reactor facility risk assessment. These illustrations and applications indicate both the utility and the versatility of the event group importance measures.

NONE

1995-07-31T23:59:59.000Z

476

Increased efficiency of topping cycle PCFB power plants  

SciTech Connect

Pressurized circulating fluidized bed (PCFB) power plants offer the power industry significantly increased efficiencies with reduced costs of electricity and lower emissions. When topping combustion is incorporated in the plant, these advantages are enhanced. In the plant, coal is fed to a pressurized carbonizer that produces a low-Btu fuel gas and char. After passing through a cyclone and ceramic barrier filter to remove gas-entrained particulates and a packed bed of emathelite pellets to remove alkali vapors. the fuel gas is burned in a topping combustor to produce the energy required to drive a gas turbine. The gas turbine drives a generator combustor, and a fluidized bed heat exchanger (FBHE). The carbonizer char is burned in the PCFB and the exhaust gas passes through its own cyclone, ceramic barrier filter, and alkali getter and supports combustion of the fuel gas in the topping combustor. Steam generated in a heat-recovery steam generator (HRSG) downstream of the gas turbine and in the FBHE associated with the PCFB drives the steam turbine generator that furnishes the balance of electric power delivered by the plant.

Robertson, A.; Domeracki, W.; Horazak, D. [and others

1996-05-01T23:59:59.000Z

477

Determination of the width of the top quark  

SciTech Connect

We extract the total width of the top quark, {Lambda}{sub t}, from the partial decay width {Lambda}(t {yields} Wb) measured using the t-channel cross section for single top quark production and from the branching fraction B(t {yields} Wb) measured in t{bar t} events using up to 2.3 fb{sup -1} of integrated luminosity collected by the D0 Collaboration at the Tevatron p{bar p} Collider. The result is {Lambda}{sub t} = 1.99{sub -0.55}{sup +0.69} GeV, which translates to a top-quark lifetime of {tau}{sub t} = (3.3{sub -0.9}{sup +1.3}) x 10{sup -25} s. Assuming a high mass fourth generation b{prime} quark and unitarity of the four-generation quark-mixing matrix, we set the first upper limit on |V{sub tb{prime}}| < 0.63 at 95% C.L.

Abazov, Victor Mukhamedovich; /Dubna, JINR; Abbott, Braden Keim; /Oklahoma U.; Abolins, Maris A.; /Michigan State U.; Acharya, Bannanje Sripath; /Tata Inst.; Adams, Mark Raymond; /Illinois U., Chicago; Adams, Todd; /Florida State U.; Alexeev, Guennadi D.; /Dubna, JINR; Alkhazov, Georgiy D.; /St. Petersburg, INP; Alton, Andrew K.; /Michigan U. /Augustana Coll., Sioux Falls; Alverson, George O.; /Northeastern U.; Alves, Gilvan Augusto; /Rio de Janeiro, CBPF /Nijmegen U.

2010-09-01T23:59:59.000Z

478

Topping cycles and advanced conversion machinery for central power stations  

SciTech Connect

From thermal power conference; Pullman, Washington, USA (3 Oct 1973). The possibility of developing dynamic conversion machines for topping cycles --- expanders and turbines ---that might utilize refractory materials not previously applied to this purpose is investigated. A technological basis for topping cycle systems that will extend the conversion efficiency of central power stations to the range of 55 to 60% is provided. The performance of a small (500 cm/sup 3/ displacement) graphite helical rotor compressor-expander set operating on inert gas for nearly 300 hr at temperatures up to 1500 deg C and rotor speeds to 14,000 rpm is described. In a related program, turbine blades and sound monolithic bodies up to 36 in. characteristic dimension were fabricated of the refractory compounds silicon nitride (Si/sub 3/N/sub 4/) and silicon carbide (SiC), which are compatible with air and combustion products. The application of available materials and power-conversion technology to permit a significant improvement in energy conversion efficiency is discussed. The demonstration of this capability is proposed by devising topping cycle systems incorporating ceramic engines capable of extracting useful energy from combustion heat sources at conditions presently inaccessible. 12 references. (auth)

Mohr, P.B.; Rienecker, F.

1973-12-12T23:59:59.000Z

479

Plaquemines parish Deep Draft top-off terminal  

SciTech Connect

The recently completed ''Deep River Study, Lower Mississippi River'' sponsored by the ''Governor's Task Force on Deep-Draft Vessel Access to the Lower Mississippi River'' contained the following recommended program: Dredge the present 40 foot deep channel to 45 feet initially from the Gulf via Southwest Pass to Mile 172 AHP to provide for two-way navigation of the deep draft vessels that would serve the forecasted most likely level of waterborne commerce (Alternative 9). Plan and seek authorization to further deepen the channel in stages to 55 feet in the future should actual increases in commerce equal the high level level of commerce (Alternative 11). Put into operation, as soon as possible, facilities for loading and topping-off grain ships midstream and topping-off coal carriers in the Gulf in order to attract and establish patterns of trade in large ships. The South Pass Bulk Terminal is a project that responds to the last section of this three-part recommendation. It was conceived as a means of providing the Gulf Coast region with low cost and efficient access to the economics of scale offered by using deep-draft vessels for ocean transport of dry bulk commodities. The proposed facility seeks to combine the advantages of a deep-draft port with those typical of a topping-off operation. It is intended as an interim measure that will serve to maintain and attract trade until such time as the river is dredged.

Nelson, C.; Morehiser, M.

1983-11-01T23:59:59.000Z

480

Evidence for single top quark production using Bayesian neural networks  

SciTech Connect

We present results of a search for single top quark production in p{bar p} collisions using a dataset of approximately 1 fb{sup -1} collected with the D0 detector. This analysis considers the muon+jets and electron+jets final states and makes use of Bayesian neural networks to separate the expected signals from backgrounds. The observed excess is associated with a p-value of 0.081%, assuming the background-only hypothesis, which corresponds to an excess over background of 3.2 standard deviations for a Gaussian density. The p-value computed using the SM signal cross section of 2.9 pb is 1.6%, corresponding to an expected significance of 2.2 standard deviations. Assuming the observed excess is due to single top production, we measure a single top quark production cross section of {sigma}(p{bar p} {yields} tb + X, tqb + X) = 4.4 {+-} 1.5 pb.

Kau, Daekwang; /Florida State U.

2007-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "top optical images" 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

Reducing the cost of top-drive installation  

Science Conference Proceedings (OSTI)

To equip an older jackup, the Offshore Mercury, with a completely workable and reliable top drive at minimum cost and without sacrificing performance, Sonat Offshore Drilling installed a power-swivel drilling system that did not require heightening or strengthening the derrick. An electronic crown protection system was installed to allow the driller use of all available reduced crown clearance, thereby increasing drilling safety by reducing the probability of accidentally running the traveling block into the crown. In addition, they modified the DC-DC drilling power equipment to create a completely functional and low-cost alternative to installing additional AC power-generating capacity and an SCR system. When planning a cost-effective top-drive installation on the Offshore Mercury, they recognized that the rig did not fit the average jackup profile: It has a DC-DC electric power drilling system and only a 140-ft (43-m) derrick, rather than the more common SCR system and 147-ft (45-m) derrick. From costs studies made up to the middle of 1991, they believed they could save a significant amount if it were possible to install and use a top drive in a 147-ft (45-m) or even a 140-ft (43-m) derrick without having to extend and strengthen the derrick. This paper reviews the design of this system and the effectiveness of its performance.

Hock, C.J. (Sonat Offshore Drilling Inc., Houston, TX (United States))

1993-09-01T23:59:59.000Z

482

Optical Metrology News  

Science Conference Proceedings (OSTI)

... The metal cylinder at top left is the device's … more. Photonic Thermometers Release Date: 11/28/2012 Click here for animation more. ...

2011-12-01T23:59:59.000Z

483

Advances in Optical Coherence Tomography and Microscopy for endoscopic applications and functional neuroimaging  

E-Print Network (OSTI)

Optical Coherence Tomography (OCT) is a developing medical imaging technology that generates micron resolution cross-sectional images of subsurface internal tissue structure in situ and in real time, without the need to ...

Aguirre, Aaron Dominic, 1977-

2008-01-01T23:59:59.000Z

484