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

Nanometric Optical Imaging Frontiers in Chemical Imaging  

E-Print Network [OSTI]

Nanometric Optical Imaging Frontiers in Chemical Imaging Seminar Series Presented by... Professor growing field which has provided for nanometric optical imaging in the near-field. Even though a variety of techniques are being developed with nanometric optical imaging potential, near-field optics remains the most

3

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

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

4

Science, Optics and You: Mirror and Images  

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

opticstutorialsindex.html INTRODUCTION MIRRORS AND IMAGES MODULE m3 SCIENCE, OPTICS & YOU GUIDEBOOK - 44 - SCIENCE, OPTICS & YOU GUIDEBOOK - 45 - m3: Mirrors and...

5

Hadamard multimode optical imaging transceiver  

DOE Patents [OSTI]

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

6

Sandia National Laboratories: Optical performance of top-down...  

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

and Exhibition (EU PVSC) EC Top Publications Reference Model 5 (RM5): Oscillating Surge Wave Energy Converter Experimental Wave Tank Test for Reference Model 3 Floating- Point...

7

Supercontinuum-based 10-GHz flat-topped optical frequency comb generation  

E-Print Network [OSTI]

and Nanoscience Department, Chalmers University of Technology, SE-41296 Göteborg, Sweden * rwu@purdue.edu Abstract-topped optical frequency comb (> 3.64-THz or 28 nm bandwidth with ~365 spectral lines within 3.5-dB power device allows the pulses to enter into the optical wave-breaking regime, thus achieving a smooth flat

Purdue University

8

Optical imaging for the new grammar of drug discovery  

Science Journals Connector (OSTI)

...enabling optical imaging platform will combine optical...validating highly specific chemical and biological tools...are generated through chemical reactions and therefore...enabling optical imaging platform will combine optical...validating highly specific chemical and biological tools...

2011-01-01T23:59:59.000Z

9

Optical imaging of Rydberg atoms  

E-Print Network [OSTI]

We present an experiment exploring electromagnetically induced transparency (EIT) in Rydberg atoms in order to observe optical nonlinearities at the single photon level. ??Rb atoms are trapped and cooled using a magneto-optical ...

Mazurenko, Anton

2012-01-01T23:59:59.000Z

10

Optical imaging of Rydberg atoms .  

E-Print Network [OSTI]

??We present an experiment exploring electromagnetically induced transparency (EIT) in Rydberg atoms in order to observe optical nonlinearities at the single photon level. ??Rb atoms… (more)

Mazurenko, Anton

2012-01-01T23:59:59.000Z

11

Inverse transport calculations in optical imaging with subspace optimization algorithms  

Science Journals Connector (OSTI)

Inverse boundary value problems for the radiative transport equation play an important role in optics-based medical imaging techniques such as diffuse optical tomography (DOT) and fluorescence optical tomography (FOT). Despite the rapid progress in the ... Keywords: Diffuse optical tomography, Fluorescence optical tomography, Inverse problems, Inverse transport problems, Optical imaging, Radiative transport equation, Singular value decomposition, Subspace optimization method

Tian Ding, Kui Ren

2014-09-01T23:59:59.000Z

12

A Low Latency Optical Top of Rack Switch for Data Centre Networks with Minimized Processor Energy Load  

Science Journals Connector (OSTI)

We propose a low latency optical data center top of rack switch using recirculation buffering and a hybrid MZ/SOA switch architecture to reduce the network power dissipated on future...

Liu, Shiyun; Cheng, Qixiang; Wonfor, Adrian; Penty, Richard V; White, Ian; Watts, Philip M

13

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

14

Determining Nighttime Atmospheric Optical Depth Using Mars Exploration Rover Images  

E-Print Network [OSTI]

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

Bean, Keri Marie

2013-07-22T23:59:59.000Z

15

Absolute instruments and perfect imaging in geometrical optics  

E-Print Network [OSTI]

Absolute instruments and perfect imaging in geometrical optics Tom´as Tyc, Lenka Herz symmetric absolute instruments that provide perfect imaging in the sense of geometrical optics. We derive to propose several new absolute instruments, in particular a lens providing a stigmatic image of an optically

Tyc, Tomas

16

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

17

Top-surface imaging resists for lithography with strongly attenuated radiation  

SciTech Connect (OSTI)

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

18

Inverse Scattering and Acousto-Optic Imaging Guillaume Bal  

E-Print Network [OSTI]

Inverse Scattering and Acousto-Optic Imaging Guillaume Bal Department of Applied Physics the optical properties of a highly-scattering medium from incoherent acousto-optic measurements. The method of interior control of boundary measurements by an external wave field. 1 #12;The acousto-optic effect

Bal, Guillaume

19

Ultrahigh speed optical coherence tomography for ophthalmic imaging applications  

E-Print Network [OSTI]

Optical coherence tomography (OCT) is a non-contact, non-invasive, micron-scale optical imaging technology that has become a standard clinical tool in ophthalmology. Fourier domain OCT detection methods have enabled higher ...

Liu, Jonathan Jaoshin

2014-01-01T23:59:59.000Z

20

The Adaptive Optics Lucky Imager: combining adaptive optics and lucky imaging  

E-Print Network [OSTI]

is to undertake science observations on the 10.4m Gran Telescopio Canarias, the world's largest optical telescope. The combination of AO and lucky imaging, when used on this telescope, will provide resolutions a factor of two higher than ever before achieved...

Crass, Jonathan

2014-07-01T23:59:59.000Z

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

Multi-Scale Optical Coherence Tomography Imaging  

E-Print Network [OSTI]

Fourier domain optical coherence tomography and methods forspeed spectral-domain optical coherence tomography at 1.3umJ. G. (1991). Optical coherence tomography. Science, 254(

Oliveira, Michael

2014-01-01T23:59:59.000Z

22

High-frequency filtered images of an optically thick edge  

Science Journals Connector (OSTI)

Peculiarities of high-frequency filtering (contouring) of images of symmetric thick (extended along the optical axis) edge are investigated in analytical form by the Kirchhoff–Fresnel...

Chugui, Yu V; Sokolov, V A

1998-01-01T23:59:59.000Z

23

Nonlinear Optical Imaging of Individual Carbon Nanotubes with  

E-Print Network [OSTI]

Nonlinear Optical Imaging of Individual Carbon Nanotubes with Four-Wave-Mixing Microscopy Hyunmin ABSTRACT Dual color four-wave-mixing (FWM) microscopy is used to spatially resolve the third-order optical and experiment rather challenging. Optical exami- nation of individual SWNTs avoids the heterogeneity of ensemble

Potma, Eric Olaf

24

Acousto-optic Bragg imaging of biological tissue  

Science Journals Connector (OSTI)

Acousto-optic Bragg imaging is a technique that uses the interaction of light with ultrasound to optically image obstructions in acoustical fields. Existing reports of acousto-optic Bragg imaging based on transmission of acoustic fields through obstructions exhibit strong acoustic impedance mismatches manifested by poor image quality and missing details of physical structures of obstructions. In this work the image quality was improved to exhibit detailed physical structures of an object by using an improved Bragg imaging system described in Sec. III below. This paper investigates the possibility of extending an acoustic Bragg imaging technique in transmission mode to image animal or plant tissues; a small azalea leaf is used as an illustration in this case. The Bragg image produced clearly shows the veins of the vascular azalea leaf serving as a proof of concept for cost-effective potential application of acoustic Bragg imaging of biological objects in the medical field. Moreover acousto-optic Bragg imaging is potentially harmless to biological cells and is sensitive to density and elastic variations in the tissue.

Alem Teklu; Nico F. Declercq; Michael McPherson

2014-01-01T23:59:59.000Z

25

Optical Image-Guided Cancer Surgery: Challenges and Limitations  

Science Journals Connector (OSTI)

...scattering, and autofluorescence are fundamental optical tissue properties that influence...Mycek, M, Pogue, BW, editors. Handbook of biomedical fluorescence. New York...using invisible near-infrared light: fundamentals of clinical translation.Mol Imaging...

Stijn Keereweer; Pieter B.A.A. Van Driel; Thomas J.A. Snoeks; Jeroen D.F. Kerrebijn; Robert J. Baatenburg de Jong; Alexander L. Vahrmeijer; Henricus J.C.M. Sterenborg; and Clemens W.G.M. Löwik

2013-07-15T23:59:59.000Z

26

Optical Synchrotron Radiation Beam Imaging with a Digital Mask  

SciTech Connect (OSTI)

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. [University of Maryland, College Park, MD (United States); Zhang, H. D. [University of Maryland, College Park, MD (United States); Corbett, W. J. [SLAC, Menlo Park, CA (United States); Fisher, A. S. [SLAC, Menlo Park, CA (United States); Mok, W. Y. [SLAC, Menlo Park, CA (United States); Tian, K. [SLAC, Menlo Park, CA (United States); Douglas, D. [Thomas Jefferson National Accelerator Facility, Newport News, VA (United States); Wilson, F. G. [Thomas Jefferson National Accelerator Facility, Newport News, VA (United States); Zhang, S. [Thomas Jefferson National Accelerator Facility, Newport News, VA (United States); Mitsuhashi, T. M. [KEK, Tsukuba (Japan); Shkvarunets, A. G. [University of Maryland, College Park, MD (United States)

2012-11-01T23:59:59.000Z

27

Ghost imaging for three-dimensional optical security  

SciTech Connect (OSTI)

Ghost imaging has become increasingly popular in quantum and optical application fields. Here, we report three-dimensional (3D) optical security using ghost imaging. The series of random phase-only masks are sparsified, which are further converted into particle-like distributions placed in 3D space. We show that either an optical or digital approach can be employed for the encoding. The results illustrate that a larger key space can be generated due to the application of 3D space compared with previous works.

Chen, Wen, E-mail: elechenw@nus.edu.sg; Chen, Xudong [Department of Electrical and Computer Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore 117583 (Singapore)] [Department of Electrical and Computer Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore 117583 (Singapore)

2013-11-25T23:59:59.000Z

28

Graphene-Based Optical Biosensors and Imaging  

SciTech Connect (OSTI)

This chapter focuses on the design, fabrication and application of graphene based optical nanobiosensors. The emerging graphene based optical nanobiosensors demonstrated the promising bioassay and biomedical applications thanking to the unique optical features of graphene. According to the different applications, the graphene can be tailored to form either fluorescent emitter or efficient fluorescence quencher. The exceptional electronic feature of graphene makes it a powerful platform for fabricating the SPR and SERS biosensors. Today the graphene based optical biosensors have been constructed to detect various targets including ions, small biomolecules, DNA/RNA and proteins. This chapter reviews the recent progress in graphene-based optical biosensors and discusses the opportunities and challenges in this field.

Tang, Zhiwen; He, Shijiang; Pei, Hao; Du, Dan; Fan, Chunhai; Lin, Yuehe

2014-01-13T23:59:59.000Z

29

Multiscale imaging of human thyroid pathologies using integrated Optical Coherence Tomography (OCT) and Optical Coherence Microscopy (OCM)  

E-Print Network [OSTI]

We evaluate the feasibility of optical coherence tomography (OCT) and optical coherence microscopy (OCM) for imaging of benign and malignant thyroid lesions ex vivo using intrinsic optical contrast. Thirty four thyroid ...

Zhou, Chao

30

Ultrafast transient grating radiation to optical image converter  

DOE Patents [OSTI]

A high sensitivity transient grating ultrafast radiation to optical image converter is based on a fixed transmission grating adjacent to a semiconductor substrate. X-rays or optical radiation passing through the fixed transmission grating is thereby modulated and produces a small periodic variation of refractive index or transient grating in the semiconductor through carrier induced refractive index shifts. An optical or infrared probe beam tuned just below the semiconductor band gap is reflected off a high reflectivity mirror on the semiconductor so that it double passes therethrough and interacts with the radiation induced phase grating therein. A small portion of the optical beam is diffracted out of the probe beam by the radiation induced transient grating to become the converted signal that is imaged onto a detector.

Stewart, Richard E; Vernon, Stephen P; Steel, Paul T; Lowry, Mark E

2014-11-04T23:59:59.000Z

31

Automated Interpretation of Optic Nerve Images: A Data Mining Framework for Glaucoma Diagnostic Support  

E-Print Network [OSTI]

Automated Interpretation of Optic Nerve Images: A Data Mining Framework for Glaucoma Diagnostic high-quality images of the optic disc (the retinal re- gion where the optic nerve exits the eye processing and data mining methods, to support the interpretation of CSLT optic nerve images. Our framework

Abidi, Syed Sibte Raza

32

Quantum optical technologies for metrology, sensing and imaging  

E-Print Network [OSTI]

Over the past 20 years, bright sources of entangled photons have led to a renaissance in quantum optical interferometry. Optical interferometry has been used to test the foundations of quantum mechanics and implement some of the novel ideas associated with quantum entanglement such as quantum teleportation, quantum cryptography, quantum lithography, quantum computing logic gates, and quantum metrology. In this paper, we focus on the new ways that have been developed to exploit quantum optical entanglement in quantum metrology to beat the shot-noise limit, which can be used, e.g., in fiber optical gyroscopes and in sensors for biological or chemical targets. We also discuss how this entanglement can be used to beat the Rayleigh diffraction limit in imaging systems such as in LIDAR and optical lithography.

Jonathan P. Dowling; Kaushik P. Seshadreesan

2014-12-24T23:59:59.000Z

33

An Assessment of MultiAngle Imaging SpectroRadiometer (MISR) Stereo-Derived Cloud Top Heights and cloud top winds using ground-based radar, lidar, and microwave radiometers  

SciTech Connect (OSTI)

Clouds are of tremendous importance to climate because of their direct radiative effects and because of their role in atmospheric dynamics and the hydrological cycle. The value of satellite imagery in monitoring cloud properties on a global basis can hardly be understated. One cloud property that satellites are in an advantageous position to monitor is cloud top height. Cloud top height retrievals are especially important for MISR because the derived height field is used to co-register the measured radiances. In this presentation we show the results of an ongoing comparison between ground-based millimeter-wave cloud radar and lidar measurements of cloud top and MISR stereo-derived cloud top height. This comparison is based on data from three radar systems located in the U.S Southern Great Plains (Lamont, Oklahoma), the Tropical Western Pacific (Nauru Island) and the North Slope of Alaska (Barrow, Alaska). These radars are operated as part of the U.S. Department of Energy Atmospheric Radiation Measurement (ARM) program. The MISR stereo height algorithm is performing largely as expected for most optically thick clouds. As with many satellite retrievals, the stereo-height retrieval has difficulty with optically thin clouds or ice clouds with little optical contrast near cloud top.

Marchand, Roger T.; Ackerman, Thomas P.; Moroney, C.

2007-03-17T23:59:59.000Z

34

OPTICAL FLANK WEAR MONITORING OF CUTTING TOOLS BY IMAGE PROCESSING  

E-Print Network [OSTI]

zone; zone B, a plateau, a more or less uniform wear land, falling between the two grooves. Two toolOPTICAL FLANK WEAR MONITORING OF CUTTING TOOLS BY IMAGE PROCESSING J. U. JEON and S. W. KIM An optoelectronic method for in situ monitoring of the flank wear of cutting tools is presented. The method is based

Kim, Yong Jung

35

Reflective optical imaging system for extreme ultraviolet wavelengths  

SciTech Connect (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

36

Optical Picosecond MCPI-Based Imagers  

SciTech Connect (OSTI)

We report on the design, construction, and initial test results of a custom MCPI design which incorporates a wideband strip transmission line drive structure. A special 16:1 series transmission-line-transformer (STLT) is utilized to distribute the drive signal from a 50-ohm, 1.85 mm coaxial vacuum feedthrough to a 3-ohm strip across the MCP. Transformer circuit material is a flexible Teflon/Kapton laminate for minimal loss and dispersion. A novel vialess multilayer structure composed of embedded, symmetrical strips, preserves ideal impulse response. Impedance matched interfaces and transitions are designed with method of moments, empirical codes, and finite element analysis. Millimeter-wave time-domain reflectometer and vector network analyzer measurements are presented, with comparison to time-domain and swept frequency 3D finite element simulation. Gain compression is expected to produce a 20 ps optical impulse response, dominated by the leaded MCP glass dielectric dispersion. Follow-on work will complete the optical impulse response tests, and extrapolation to more expensive silicon MCP and 1-mm feedthroughs promises an impulse response of 5 ps.

Buckles, R. A.; guyton, R. L.; Ross, P. W.

2012-08-14T23:59:59.000Z

37

Spatially Multiplexed Fiber-optic Microscopy for Simultaneous Imaging of Multiple Brain Regions  

Science Journals Connector (OSTI)

Spatially multiplexed fiber-optic imager is experimentally demonstrated. Our system utilizes a trifurcated fiber bundles for real-time brain imaging in 3 different areas.

Cha, Jaepyeong; Kang, Jin U

38

Optical Coherence Imaging of Hemodynamics, Metabolism, and Cell Viability during Brain Injury  

Science Journals Connector (OSTI)

Pre-clinical quantitative imaging endpoints have been challenging in mouse models of cerebrovascular disease. Here we present optical coherence imaging platforms that can quantify...

Srinivasan, Vivek J; Chong, Shau Poh; Merkle, Conrad; Radhakrishnan, Harsha; Leahy, Conor

39

RadTracker: Optical Imaging of High Energy Radiation Tracks  

SciTech Connect (OSTI)

This project examined the possibility of extending the recently demonstrated radoptic detection approach to gamma imaging. Model simulations of the light scattering process predicted that expected signal levels were small and likely below the detection limit of large area, room-temperature detectors. A series of experiments using pulsed x-ray excitation, modulated gamma excitation and optical pump-probe methods confirmed those theoretical predictions. At present the technique does not appear to provide a viable approach to volumetric radiation detection; however, in principal, orders of magnitude improvement in the SNR can result by using designer materials to concentrate and localize the radiation-absorption induced charge, simultaneously confining the optical mode to increase 'fill' factor and overlap of the probe beam with the affected regions, and employing high speed gated imaging detectors to measure the scattered signal.

Vernon, S P; Lowry, M E; Comaskey, B J; Heebner, J E; Kallman, J S; Richards, J B

2007-03-02T23:59:59.000Z

40

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

E-Print Network [OSTI]

.7 SNR Hot computed from simulated measurements of light intensity (filled circles) and phase (open circles) in hundred percent lumpy backgrounds of endogenous ( axi ? , ami ? , sx ? , and sm ? ) as well as exogenous ( axf ? , and amf ? ) optical..., fluorophores do not have an intrinsic half-life as do radiopharmaceuticals. This greatly enhances the duration of time for imaging, which is limited in the case of nuclear imaging, and results in higher target- to-background ratios (TBR). Despite...

Sahu, Amit K.

2009-05-15T23:59:59.000Z

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

Expanded beam non-imaging fiber optic connector  

DOE Patents [OSTI]

There is disclosed an expanded beam fiber to fiber connector, based on non-imaging optic principles for coupling light beams from one optical fiber to another. The system consists of two identical connector parts, referred to herein as a collimating part and a concentrating part, each having a preferred partially curved reflective boundary surface for minimizing power loss and surrounding either a hollow space or a space filled with a uniform transparent medium. In one embodiment the boundary is metallic while in a second embodiment the boundary is in the form of an interface allowing total internal reflection. In both the hollow and filled case a lens may be located at the expanded end of both the collimator part and the concentrator part forming the connector. The connector is preferably located in a housing in order to protect and preserve the mechanical stability of the coupler. 13 figs.

Jannson, T.; Jannson, J.; Yeung, P.

1990-02-06T23:59:59.000Z

42

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

SciTech Connect (OSTI)

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

43

Adaptive Optics and Lucky Imager (AOLI): presentation and first light  

E-Print Network [OSTI]

In this paper we present the Adaptive Optics Lucky Imager (AOLI), a state-of-the-art instrument which makes use of two well proved techniques for extremely high spatial resolution with ground-based telescopes: Lucky Imaging (LI) and Adaptive Optics (AO). AOLI comprises an AO system, including a low order non-linear curvature wavefront sensor together with a 241 actuators deformable mirror, a science array of four 1024x1024 EMCCDs, allowing a 120x120 down to 36x36 arcseconds field of view, a calibration subsystem and a powerful LI software. Thanks to the revolutionary WFS, AOLI shall have the capability of using faint reference stars ({\\it I\\/} $\\sim$ 16.5-17.5), enabling it to be used over a much wider part of the sky than with common Shack-Hartmann AO systems. This instrument saw first light in September 2013 at William Herschel Telescope. Although the instrument was not complete, these commissioning demonstrated its feasibility, obtaining a FWHM for the best PSF of 0.151$\\pm$0.005 arcsec and a plate scale o...

Velasco, S; Mackay, C; Oscoz, A; King, D L; Crass, J; Díaz-Sánchez, A; Femenía, B; González-Escalera, V; Labadie, L; López, R L; Garrido, A Pérez; Puga, M; Rodríguez-Ramos, L F; Zuther, J

2015-01-01T23:59:59.000Z

44

Tomographic image reconstruction from optical projections in light-diffusing media  

Science Journals Connector (OSTI)

The recent developments in light generation and detection techniques have opened new possibilities for optical medical imaging, tomography, and diagnosis at tissue penetration depths...

Colak, S B; Papaioannou, D G; ’t Hooft, G W; van der Mark, M B; Schomberg, H; Paasschens, J C J; Melissen, J B M; van Asten, N A A J

1997-01-01T23:59:59.000Z

45

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

46

Exploring diazepam’s effect on hemodynamic responses of mouse brain tissue by optical spectroscopic imaging  

Science Journals Connector (OSTI)

In this study, a simple duel-optical spectroscopic imaging apparatus capable of simultaneously determining relative changes in brain oxy-and deoxy-hemoglobin concentrations was used...

Abookasis, David; Shochat, Ariel; Nesher, Elimelech; Pinhasov, Albert

2014-01-01T23:59:59.000Z

47

High-resolution three-dimensional optical coherence tomography imaging of kidney microanatomy ex vivo  

E-Print Network [OSTI]

Optical coherence tomography (OCT) is an emerging medical imaging technology that enables high-resolution, noninvasive, cross-sectional imaging of microstructure in biological tissues in situ and in real time. When combined ...

Chen, Yu

48

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

49

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

50

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. 11 figs.

Worstell, W.A.

1997-02-04T23:59:59.000Z

51

Serial optical coherence scanner for brain imaging and mapping  

Science Journals Connector (OSTI)

The serial optical coherence scanner reconstructs macroscopic tissues at microscopic resolution using intrinsic optical contrasts. The anatomy, nerve fiber architectures and fiber...

Akkin, Taner; Wang, Hui

52

Top Production  

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

53

Demonstration of wide-angle beam steering optics in wavelength-division-multiplexing indoor optical wireless LAN with dedicated CMOS imager  

Science Journals Connector (OSTI)

We are developing a new indoor optical wireless LAN system, in which dedicated CMOS imagers are utilized to offer location-aware visually-intuitive wireless communications, wavelength- or space-division-multiplexing high-speed data transfer, and compact ... Keywords: CMOS imager, beam steering, free-space optical communications, indoor optical wireless LAN, wavelength multiplexing

Keiichiro Kagawa; Jun Tanida

2008-11-01T23:59:59.000Z

54

Optical  

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

55

Automatic Detection of Optic Disc from Retinal Fundus Images Using Dynamic Programming  

Science Journals Connector (OSTI)

Automatic detection of optic disc (OD) in fundus images is used to determine potential clinical parameters for diagnosis of retinopathic diseases. Due to the presence of vascular-tree blood vessels, the detection...

Qaisar Abbas; Irene Fondón; Soledad Jiménez…

2012-01-01T23:59:59.000Z

56

Development of the Ultrashort Pulse Nonlinear Optical Microscopy Spectral Imaging System  

E-Print Network [OSTI]

by broadband sub-10-fs pulses. This dissertation will discuss the development of two spectral imaging systems using the principles of nonlinear optical microscopy for pixel-by-pixel spectral segmentation of multiple fluorescent spectra. The first spectral...

Lee, Anthony Chien-der

2012-10-19T23:59:59.000Z

57

Abstract 4935: Hypoxia targeting fluorescent nanobodies for optical molecular imaging of preinvasive breast cancer  

Science Journals Connector (OSTI)

...Utrecht, Utrecht, Netherlands; 2University Utrecht, Utrecht, Netherlands; 3QVQ, Utrecht, Netherlands. Introduction: Optical molecular...conventional (monoclonal) antibodies, and can be applied for molecular imaging of pre-invasive breast...

Aram SA van Brussel; Arthur Adams; Sabrina Oliveira; Mohamed E. Khatabbi; Jeroen F. Vermeulen; Elsken Van der Wall; Willem PThM Mali; Patrick W. Derksen; Paul J. Van Diest; and Paul MP Van Bergen en Henegouwen

2014-10-01T23:59:59.000Z

58

Digital signal processing techniques for optical coherence tomography : OCT and OCT image enhancement  

E-Print Network [OSTI]

Digital signal processing (DSP) techniques were developed to improve the flexibility, functionality, and image quality of ultrahigh resolution optical coherence tomography (OCT) systems. To reduce the dependence of OCT ...

Adler, Desmond Christopher, 1978-

2004-01-01T23:59:59.000Z

59

On the conservation of fundamental optical quantities in non-paraxial imaging systems  

E-Print Network [OSTI]

in applications such as optical traps, frequency conversion, high-resolution microscopy and optical data storage system, it is shown that the response in the image space can be expressed in terms of a limited set of the non-paraxial Gauss­Laguerre eigenmodes. Conservation of energy, linear momentum and angular momentum

60

Infrared cloud imaging in support of Earth-space optical communication  

E-Print Network [OSTI]

Infrared cloud imaging in support of Earth- space optical communication Paul W. Nugent,1 Joseph A to the communication platform, so there is a need to measure spatial and temporal statistics of clouds at potential to provide continuous day-night cloud detection and classification according to the cloud optical depth

Shaw, Joseph A.

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

Soft-x-ray projection imaging with a 1:1 ring-field optic  

E-Print Network [OSTI]

- fraction limit has recently been demonstrated with multilayer-coated Schwarzschild optics.1-3 Unfor- tunately, a Schwarzschild optic possesses a central obscuration and a small image field and hence the surfaces are spherical, so the requirements on mirror fabrication and alignment are not overly stringent

Bokor, Jeffrey

62

Tomographic optical breast imaging guided by three-dimensional mammography  

E-Print Network [OSTI]

application to imaging breast cancer and brain pathology and activity 4­8 is begin- ning to show more promise problem for DOT is ill-conditioned and generally underdeter- mined, the image quality is compromised

Boas, David

63

Design of angle-tolerant multivariate optical elements for chemical imaging  

E-Print Network [OSTI]

Design of angle-tolerant multivariate optical elements for chemical imaging Olusola O. Soyemi in imaging applications. We report a method for the design of angle-insensitive MOEs based on modification of Bismarck Brown and Crystal Violet, was designed and its performance simulated. For angles of incidence

Myrick, Michael Lenn

64

Process for rapid detection of fratricidal defects on optics using Linescan Phase Differential Imaging  

SciTech Connect (OSTI)

Phase-defects on optics used in high-power lasers can cause light intensification leading to laser-induced damage of downstream optics. We introduce Linescan Phase Differential Imaging (LPDI), a large-area dark-field imaging technique able to identify phase-defects in the bulk or surface of large-aperture optics with a 67 second scan-time. Potential phase-defects in the LPDI images are indentified by an image analysis code and measured with a Phase Shifting Diffraction Interferometer (PSDI). The PSDI data is used to calculate the defects potential for downstream damage using an empirical laser-damage model that incorporates a laser propagation code. A ray tracing model of LPDI was developed to enhance our understanding of its phase-defect detection mechanism and reveal limitations.

Ravizza, F L; Nostrand, M C; Kegelmeyer, L M; Hawley, R A; Johnson, M A

2009-11-05T23:59:59.000Z

65

Surface Plasmon mediated near-field imaging and optical addressing in nanoscience  

E-Print Network [OSTI]

We present an overview of recent progress in plasmonics. We focus our study on the observation and excitation of surface plasmon polaritons (SPPs) with optical near-field microscopy. We discuss in particular recent applications of photon scanning tunnelling microscope (PSTM) for imaging of SPP propagating in metal and dielectric wave guides. We show how near-field scanning optical microscopy (NSOM) can be used to optically and actively address remotely nano-objects such as quantum dots. Additionally we compare results obtained with near-field microscopy to those obtained with other optical far-field methods of analysis such as leakage radiation microscopy (LRM).

Drezet, A; Krenn, J R; Brun, M; Huant, S

2007-01-01T23:59:59.000Z

66

Dental dose and image quality surveys using optically stimulated luminescence  

E-Print Network [OSTI]

The correlation of x-ray beam quality at typical energies used for dental radiography with dosimeter response was studied. Landauer Luxel Â? Optically Stimulated Luminescence (OSL) dosimeters were analyzed for the dose response with respect...

Handley, Stephen Michael

2006-04-12T23:59:59.000Z

67

Development of Molecular Contrast in Coherence Domain Optical Imaging  

E-Print Network [OSTI]

spectrally resolved two color pump-probe Optical Coherence Microscopy (SRPPOCM). We showed the prototype system on a red hair and a black hair. Our preliminary results show that the SRPPOCM technique could provide a contrast between pheomelanin and eumelanin...

Wan, Qiujie

2012-02-14T23:59:59.000Z

68

The Assembly of the Belle II TOP Counter  

E-Print Network [OSTI]

A new type of ring-imaging Cherenkov counter, called TOP counter, has been developed for particle identification at the Belle II experiment to run at the SuperKEKB accelerator in KEK, Japan. The detector consists of 16 identical modules arranged azimuthally around the beam line. The assembly procedure for a TOP module is described. This procedure includes acceptance testing of the quartz mirror, prism, and quartz bar radiators. The acceptance tests include a chip search and measurements of bulk transmittance and total internal reflectance. The process for aligning and gluing the optical components together is described.

Wang, Boqun

2015-01-01T23:59:59.000Z

69

The Assembly of the Belle II TOP Counter  

E-Print Network [OSTI]

A new type of ring-imaging Cherenkov counter, called TOP counter, has been developed for particle identification at the Belle II experiment to run at the SuperKEKB accelerator in KEK, Japan. The detector consists of 16 identical modules arranged azimuthally around the beam line. The assembly procedure for a TOP module is described. This procedure includes acceptance testing of the quartz mirror, prism, and quartz bar radiators. The acceptance tests include a chip search and measurements of bulk transmittance and total internal reflectance. The process for aligning and gluing the optical components together is described.

Boqun Wang; for the Belle II PID Group

2015-01-13T23:59:59.000Z

70

Study of microfluidic measurement techniques using novel optical imaging diagnostics  

E-Print Network [OSTI]

is applied for a 3-D vector field mapping in a microscopic flow and a Brownian motion tracking of nanoparticles. This technique modifies OSSM system for a micro-fluidic experiment, and the imaging system captures a diffracted particle image having numerous...

Park, Jaesung

2007-04-25T23:59:59.000Z

71

Molecular imaging of water binding state and diffusion in breast cancer using diffuse optical spectroscopy and diffusion weighted MRI  

E-Print Network [OSTI]

Molecular imaging of water binding state and diffusion inChung et al. , “In vivo water state measurements in breastby measuring tis- sue water state using diffuse optical

Chung, So Hyun; Yu, Hon; Su, Min-Ying; Cerussi, Albert E.; Tromberg, Bruce J.

2012-01-01T23:59:59.000Z

72

Local Optical Spectroscopies for Subnanometer Spatial Resolution Chemical Imaging  

SciTech Connect (OSTI)

The evanescently coupled photon scanning tunneling microscopes (STMs) have special requirements in terms of stability and optical access. We have made substantial improvements to the stability, resolution, and noise floor of our custom-built visible-photon STM, and will translate these advances to our infrared instrument. Double vibration isolation of the STM base with a damping system achieved increased rigidity, giving high tunneling junction stability for long-duration and high-power illumination. Light frequency modulation with an optical chopper and phase-sensitive detection now enhance the signal-to-noise ratio of the tunneling junction during irradiation.

Weiss, Paul

2014-01-20T23:59:59.000Z

73

Birefringence imaging in biological tissue using polarization sensitive optical coherent tomography  

DOE Patents [OSTI]

Employing a low coherence Michelson interferometer, two dimensional images of optical birefringence in turbid samples as a function of depth are measured. Polarization sensitive detection of the signal formed by interference of backscattered light from the sample and a mirror or reference plane in the reference arm which defines a reference optical path length, give the optical phase delay between light propagating along the fast and slow axes of the birefringence sample. Images showing the change in birefringence in response to irradiation of the sample are produced as an example of the detection apparatus and methodology. The technique allow rapid, noncontact investigation of tissue or sample diagnostic imaging for various medical or materials procedures.

De Boer, Johannes F. (Irvine, CA); Milner, Thomas E. (Austin, TX); Nelson, J. Stuart (Laguna Niguel, CA)

2001-01-01T23:59:59.000Z

74

Imaging photorefractive optical vibration measurement method and device  

DOE Patents [OSTI]

A method and apparatus are disclosed for characterizing a vibrating image of an object of interest. The method includes providing a sensing media having a detection resolution within a limited bandwidth and providing an object of interest having a vibrating medium. Two or more wavefronts are provided, with at least one of the wavefronts being modulated by interacting the one wavefront with the vibrating medium of the object of interest. The another wavefront is modulated such that the difference frequency between the one wavefront and the another wavefront is within a response range of the sensing media. The modulated one wavefront and another wavefront are combined in association with the sensing media to interfere and produce simultaneous vibration measurements that are distributed over the object so as to provide an image of the vibrating medium. The image has an output intensity that is substantially linear with small physical variations within the vibrating medium. Furthermore, the method includes detecting the image. In one implementation, the apparatus comprises a vibration spectrum analyzer having an emitter, a modulator, sensing media and a detector configured so as to realize such method. According to another implementation, the apparatus comprises a vibration imaging device.

Telschow, Kenneth L. (Idaho Falls, ID); Deason, Vance A. (Idaho Falls, ID); Hale, Thomas C. (Los Alamos, NM)

2000-01-01T23:59:59.000Z

75

Integrated Optical Coherence Tomography and Optical Coherence Microscopy Imaging of Human Pathology  

E-Print Network [OSTI]

Excisional biopsy is the current gold standard for disease diagnosis; however, it requires a relatively long processing time and it may also suffer from unacceptable false negative rates due to sampling errors. Optical ...

Lee, Hsiang-Chieh

76

A VLT colour image of the optical Einstein ring 0047-2808  

E-Print Network [OSTI]

The optical Einstein ring 0047-2808 was imaged by the VLT UT1 during the science verification programme. The ring is the image of a high-redshift z=3.595 star-forming galaxy, with strong Ly-alpha emission at 5589A, gravitationally lensed by a massive early-type galaxy at z=0.485. Relative to earlier NTT data the high signal-to-noise ratio of the VLT Ly-alpha narrow-band image allows much improved constraints to be placed on the surface-brightness profile of the source and on the mass, leading to a measured mass-to-light ratio of M/L(B)~13h for the deflector galaxy. We have combined the VLT B-band and Ly-alpha narrow-band images with a K-band image obtained at UKIRT to produce a deep colour image of the system.

S. J. Warren; G. F. Lewis; P. C. Hewett; P. Moller; P. Shaver; A. Iovino

1999-01-20T23:59:59.000Z

77

Holographic optical coherence imaging of rat osteogenic sarcoma tumor spheroids  

E-Print Network [OSTI]

rates. The technical drawbacks of this approach are the need for P. Yu is with the Department of Physics that passes coherent structure-bearing light to the camera during holographic readout while preferentially video-rate movies.9 The smart-pixel arrays currently operate at 58 58 pixels.10 A direct en face imaging

Nolte, David D.

78

Abstract 3925: Optical coherence tomography imaging in cancer research.  

Science Journals Connector (OSTI)

...established imaging technology with a greater than 10 year history in the clinic. Over the past 5 years, an increasing number...innovations in OCT that are happening now in research and engineering laboratories and the new capabilities that such innovations...

Benjamin J. Vakoc; Dai Fukumura; Timothy P. Padera; Rakesh K. Jain; and Brett E. Bouma

2013-08-14T23:59:59.000Z

79

Imaging doppler velocimeter with downward heterodyning in the optical domain  

DOE Patents [OSTI]

In a Doppler velocimeter, the incoming Doppler-shifted beams are heterodyned to reduce their frequencies into the bandwidth of a digital camera. This permits the digital camera to produce at every sampling interval a complete two-dimensional array of pixel values. This sequence of pixel value arrays provides a velocity image of the target.

Reu, Phillip L; Hansche, Bruce D

2013-05-21T23:59:59.000Z

80

MODELING AND MEASUREMENT OF OPTICAL POLARIMETRIC IMAGE PHENOMENOLOGY IN A COMPLEX URBAN ENVIRONMENT  

E-Print Network [OSTI]

MODELING AND MEASUREMENT OF OPTICAL POLARIMETRIC IMAGE PHENOMENOLOGY IN A COMPLEX URBAN ENVIRONMENT be modeled and placed above a complex synthetic urban scene to create spectrally varying Stokes vector output, Simulation Software 1. INTRODUCTION Urban environments typically include an assortment of man- made objects

Kerekes, John

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

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

SciTech Connect (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

82

Development of an electro-optic resonator probe for Terahertz imaging R. Mueckstein, Huiyun Liu, and O. Mitrofanov  

E-Print Network [OSTI]

Development of an electro-optic resonator probe for Terahertz imaging R. Mueckstein, Huiyun Liu, Abstract: We introduce the concept of an electro-optic resonator to improve resolution and enhance. The optimum design in terms of 3dB-bandwidth, reflectivity, and electro-optic enhancement is deduced

Haddadi, Hamed

83

High-frame-rate intensified fast optically shuttered TV cameras with selected imaging applications  

SciTech Connect (OSTI)

This invited paper focuses on high speed electronic/electro-optic camera development by the Applied Physics Experiments and Imaging Measurements Group (P-15) of Los Alamos National Laboratory`s Physics Division over the last two decades. The evolution of TV and image intensifier sensors and fast readout fast shuttered cameras are discussed. Their use in nuclear, military, and medical imaging applications are presented. Several salient characteristics and anomalies associated with single-pulse and high repetition rate performance of the cameras/sensors are included from earlier studies to emphasize their effects on radiometric accuracy of electronic framing cameras. The Group`s test and evaluation capabilities for characterization of imaging type electro-optic sensors and sensor components including Focal Plane Arrays, gated Image Intensifiers, microchannel plates, and phosphors are discussed. Two new unique facilities, the High Speed Solid State Imager Test Station (HSTS) and the Electron Gun Vacuum Test Chamber (EGTC) arc described. A summary of the Group`s current and developmental camera designs and R&D initiatives are included.

Yates, G.J.; King, N.S.P.

1994-08-01T23:59:59.000Z

84

3D optical sectioning with a new hyperspectral confocal fluorescence imaging system.  

SciTech Connect (OSTI)

A novel hyperspectral fluorescence microscope for high-resolution 3D optical sectioning of cells and other structures has been designed, constructed, and used to investigate a number of different problems. We have significantly extended new multivariate curve resolution (MCR) data analysis methods to deconvolve the hyperspectral image data and to rapidly extract quantitative 3D concentration distribution maps of all emitting species. The imaging system has many advantages over current confocal imaging systems including simultaneous monitoring of numerous highly overlapped fluorophores, immunity to autofluorescence or impurity fluorescence, enhanced sensitivity, and dramatically improved accuracy, reliability, and dynamic range. Efficient data compression in the spectral dimension has allowed personal computers to perform quantitative analysis of hyperspectral images of large size without loss of image quality. We have also developed and tested software to perform analysis of time resolved hyperspectral images using trilinear multivariate analysis methods. The new imaging system is an enabling technology for numerous applications including (1) 3D composition mapping analysis of multicomponent processes occurring during host-pathogen interactions, (2) monitoring microfluidic processes, (3) imaging of molecular motors and (4) understanding photosynthetic processes in wild type and mutant Synechocystis cyanobacteria.

Nieman, Linda T.; Sinclair, Michael B.; Davidson, George S.; Van Benthem, Mark Hilary; Haaland, David Michael; Timlin, Jerilyn Ann; Sasaki, Darryl Yoshio; Bachand, George David; Jones, Howland D. T.

2007-02-01T23:59:59.000Z

85

A fast inverse consistent deformable image registration method based on symmetric optical flow computation  

Science Journals Connector (OSTI)

Deformable image registration is widely used in various radiation therapy applications including daily treatment planning adaptation to map planned tissue or dose to changing anatomy. In this work, a simple and efficient inverse consistency deformable registration method is proposed with aims of higher registration accuracy and faster convergence speed. Instead of registering image I to a second image J, the two images are symmetrically deformed toward one another in multiple passes, until both deformed images are matched and correct registration is therefore achieved. In each pass, a delta motion field is computed by minimizing a symmetric optical flow system cost function using modified optical flow algorithms. The images are then further deformed with the delta motion field in the positive and negative directions respectively, and then used for the next pass. The magnitude of the delta motion field is forced to be less than 0.4 voxel for every pass in order to guarantee smoothness and invertibility for the two overall motion fields that are accumulating the delta motion fields in both positive and negative directions, respectively. The final motion fields to register the original images I and J, in either direction, are calculated by inverting one overall motion field and combining the inversion result with the other overall motion field. The final motion fields are inversely consistent and this is ensured by the symmetric way that registration is carried out. The proposed method is demonstrated with phantom images, artificially deformed patient images and 4D-CT images. Our results suggest that the proposed method is able to improve the overall accuracy (reducing registration error by 30% or more, compared to the original and inversely inconsistent optical flow algorithms), reduce the inverse consistency error (by 95% or more) and increase the convergence rate (by 100% or more). The overall computation speed may slightly decrease, or increase in most cases because the new method converges faster. Compared to previously reported inverse consistency algorithms, the proposed method is simpler, easier to implement and more efficient.

Deshan Yang; Hua Li; Daniel A Low; Joseph O Deasy; Issam El Naqa

2008-01-01T23:59:59.000Z

86

Optical analysis for simplified astigmatic correction of non-imaging focusing heliostat  

SciTech Connect (OSTI)

In the previous work, non-imaging focusing heliostat that consists of m x n facet mirrors can carry out continuous astigmatic correction during sun-tracking with the use of only (m + n - 2) controllers. For this paper, a simplified astigmatic correction of non-imaging focusing heliostat is proposed for reducing the number of controllers from (m + n - 2) to only two. Furthermore, a detailed optical analysis of the new proposal has been carried out and the simulated result has shown that the two-controller system can perform comparably well in astigmatic correction with a much simpler and more cost effective design. (author)

Chong, K.K. [Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Off Jalan Genting Kelang, Setapak, 53300 Kuala Lumpur (Malaysia)

2010-08-15T23:59:59.000Z

87

Studies of Optical Damage in Photorefractive Single LiNbO3 Crystals using Imaging Polarimetry  

E-Print Network [OSTI]

The optical damage of photorefractive material, single LiNbO3 crystal, is experimentally studied. The specimen has been illuminated with the radiation of continuous Ar-laser (the wavelength of 488 nm) focused to 35?m spot. The induced birefringence map is obtained by means of imaging polarimeter. Promising resources of the experimental setup for detecting laser-induced damage in photorefractive materials is demonstrated.

Krupych, O; Vlokh, R

2005-01-01T23:59:59.000Z

88

Optical imaging of phantoms from real data by an approximately globally convergent inverse algorithm  

E-Print Network [OSTI]

A numerical method for an inverse problem for an elliptic equation with the running source at multiple positions is presented. This algorithm does not rely on a good first guess for the solution. The so-called "approximate global convergence" property of this method is shown here. The performance of the algorithm is verified on real data for Diffusion Optical Tomography. Direct applications are in near-infrared laser imaging technology for stroke detection in brains of small animals.

Jianzhong Su; Michael V. Klibanov; Yueming Liu; Zhijin Lin; Natee Pantong; Hanli Liu

2012-08-25T23:59:59.000Z

89

Method and apparatus for optical Doppler tomographic imaging of fluid flow velocity in highly scattering media  

DOE Patents [OSTI]

Optical Doppler tomography permits imaging of fluid flow velocity in highly scattering media. The tomography system combines Doppler velocimetry with high spatial resolution of partially coherent optical interferometry to measure fluid flow velocity at discrete spatial locations. Noninvasive in vivo imaging of blood flow dynamics and tissue structures with high spatial resolutions of the order of 2 to 10 microns is achieved in biological systems. The backscattered interference signals derived from the interferometer may be analyzed either through power spectrum determination to obtain the position and velocity of each particle in the fluid flow sample at each pixel, or the interference spectral density may be analyzed at each frequency in the spectrum to obtain the positions and velocities of the particles in a cross-section to which the interference spectral density corresponds. The realized resolutions of optical Doppler tomography allows noninvasive in vivo imaging of both blood microcirculation and tissue structure surrounding the vessel which has significance for biomedical research and clinical applications.

Nelson, John Stuart (Laguna Niguel, CA); Milner, Thomas Edward (Irvine, CA); Chen, Zhongping (Irvine, CA)

1999-01-01T23:59:59.000Z

90

Radiolabeled Peptide Scaffolds for PET/SPECT - Optical in Vivo Imaging of Carbohydrate-Lectin Interactions  

SciTech Connect (OSTI)

The objective of this research is to develop phage display-selected peptides into radio- and fluoresecently- labeled scaffolds for the multimodal imaging of carbohydrate-lectin interactions. While numerous protein and receptor systems are being explored for the development of targeted imaging agents, the targeting and analysis of carbohydrate-lectin complexes in vivo remains relatively unexplored. Antibodies, nanoparticles, and peptides are being developed that target carbohydrate-lectin complexes in living systems. However, antibodies and nanoparticles often suffer from slow clearance and toxicity problems. Peptides are attractive alternative vehicles for the specific delivery of radionuclides or fluorophores to sites of interest in vivo, although, because of their size, uptake and retention may be less than antibodies. We have selected high affinity peptides that bind a specific carbohydrate-lectin complex involved in cell-cell adhesion and cross-linking using bacteriophage (phage) display technologies (1,2). These peptides have allowed us to probe the role of these antigens in cell adhesion. Fluorescent versions of the peptides have been developed for optical imaging and radiolabeled versions have been used in single photon emission computed tomography (SPECT) and positron emission tomography (PET) in vivo imaging (3-6). A benefit in employing the radiolabeled peptides in SPECT and PET is that these imaging modalities are widely used in living systems and offer deep tissue sensitivity. Radiolabeled peptides, however, often exhibit poor stability and high kidney uptake in vivo. Conversely, optical imaging is sensitive and offers good spatial resolution, but is not useful for deep tissue penetration and is semi-quantitative. Thus, multimodality imaging that relies on the strengths of both radio- and optical- imaging is a current focus for development of new in vivo imaging agents. We propose a novel means to improve the efficacy of radiolabeled and fluorescently labeled peptides, including our lectin/carbohydrate- targeting peptides, by displaying the targeting epitopes on small ~29 amino acid cyclic plant protein scaffolds known as cyclotides. Cyclotides are extremely stable molecules with long serum half-lives and low kidney uptake (7). More than one copy of the peptide can be engineered into the cyclotide loops, thus increasing the avidity of the peptide construct for its target.

Deutscher, Susan

2014-09-30T23:59:59.000Z

91

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.

92

Stratospheric profiles of nitrogen dioxide observed by Optical Spectrograph and Infrared Imager System on the Odin satellite  

E-Print Network [OSTI]

Stratospheric profiles of nitrogen dioxide observed by Optical Spectrograph and Infrared Imager of nitrogen dioxide in the 19­40 km altitude range are successfully retrieved over the globe from Optical, iterative onion peel Citation: Sioris, C. E., et al., Stratospheric profiles of nitrogen dioxide observed

Chance, Kelly

93

Optical-resolution photoacoustic imaging through thick tissue with a thin capillary as a dual optical-in acoustic-out waveguide  

E-Print Network [OSTI]

We demonstrate the ability to guide high-frequency photoacoustic waves through thick tissue with a water-filled silica-capillary (150 \\mu m inner diameter and 30 mm long). An optical-resolution photoacoustic image of a 30 \\mu m diameter absorbing nylon thread was obtained by guiding the acoustic waves in the capillary through a 3 cm thick fat layer. The transmission loss through the capillary was about -20 dB, much lower than the -120 dB acoustic attenuation through the fat layer. The overwhelming acoustic attenuation of high-frequency acoustic waves by biological tissue can therefore be avoided by the use of a small footprint capillary acoustic waveguide for remote detection. We finally demonstrate that the capillary can be used as a dual optical-in acoustic-out waveguide, paving the way for the development of minimally invasive optical-resolution photoacoustic endoscopes free of any acoustic or optical elements at their imaging tip.

Simandoux, Olivier; Gateau, Jerome; Huignard, Jean-Pierre; Moser, Christophe; Psaltis, Demetri; Bossy, Emmanuel

2015-01-01T23:59:59.000Z

94

December 15, 2000 / Vol. 25, No. 24 / OPTICS LETTERS 1777 Transport-based image reconstruction in turbid media with  

E-Print Network [OSTI]

- proximation to the radiative transport equation is then used to reconstruct an image of a 100-mm absorbing been used,4 and most are based on the diffusion approximation to the Boltzmann transport equationDecember 15, 2000 / Vol. 25, No. 24 / OPTICS LETTERS 1777 Transport-based image reconstruction

Boas, David

95

Soft x ray/extreme ultraviolet images of the solar atmosphere with normal incidence multilayer optics  

SciTech Connect (OSTI)

The first high resolution Soft X-Ray/Extreme Ultraviolet (XUV) images of the Sun with normal incidence multilayer optics were obtained by the Standford/MSFC Rocket X-Ray Spectroheliograph on 23 Oct. 1987. Numerous images at selected wavelengths from 8 to 256 A were obtained simultaneously by the diverse array of telescopes flown on-board the experiment. These telescopes included single reflection normal incidence multilayer systems (Herschelian), double reflection multilayer systems (Cassegrain), a grazing incidence mirror system (Wolter-Schwarzschild), and hybrid systems using normal incidence multilayer optics in conjunction with the grazing incidence primary (Wolter-Cassegrain). Filters comprised of approximately 1700{Angstrom} thick aluminum supported on a nickel mesh were used to transmit the soft x ray/EUV radiation while preventing the intense visible light emission of the Sun from fogging the sensitive experimental T-grain photographic emulsions. These systems yielded high resolution soft x ray/EUV images of the solar corona and transition region, which reveal magnetically confined loops of hot solar plasma, coronal plumes, polar coronal holes, supergranulation, and features associated with overlying cool prominences. The development, testing, and operation of the experiments, and the results from the flight are described. The development of a second generation experiment, the Multi-Spectral Solar Telescope Array, which is scheduled to fly in the summer of 1990, and a recently approved Space Station experiment, the Ultra-High Resolution XUV Spectroheliograph, which is scheduled to fly in 1996 are also described.

Lindblom, J.F.

1990-01-01T23:59:59.000Z

96

Physical structure of the protoplanetary nebula CRL618. I. Optical long-slit spectroscopy and imaging  

E-Print Network [OSTI]

In this paper (paper I) we present optical long-slit spectroscopy and imaging of the protoplanetary nebula CRL618. The optical lobes of CRL618 consist of shock-excited gas, which emits many recombination and forbidden lines, and dust, which scatters light from the innermost regions. From the analysis of the scattered Halpha emission, we derive a nebular inclination of i=24+-6 deg. The spectrum of the innermost part of the east lobe (visible as a bright, compact nebulosity close to the star in the Halpha HST image) is remarkably different from that of the shocked lobes but similar to that of the inner HII region, suggesting that this region represents the outermost parts of the latter. We find a non-linear radial variation of the gas velocity along the lobes. The largest projected LSR velocities (~80 km/s) are measured at the tips of the lobes, where the direct images show the presence of compact bow-shaped structures. The velocity of the shocks in CRL618 is in the range ~75-200 km/s, as derived from diagnostic line ratios and line profiles. We report a brightening (weakening) of [OIII]5007AA ([OI]6300AA) over the last ~10 years that may indicate a recent increase in the speed of the exciting shocks. From the analysis of the spatial variation of the nebular extinction, we find a large density contrast between the material inside the lobes and beyond them: the optical lobes seem to be `cavities' excavated in the AGB envelope by interaction with a more tenuous post-AGB wind. The electron density, with a mean value n_e~5E3-1E4 cm-3, shows significant fluctuations but no systematic decrease along the lobes, in agreement with most line emission arising in a thin shell of shocked material (the lobe walls) rather than in the post-AGB wind filling the interior of the lobes. (...)

C. Sanchez Contreras; R. Sahai; A. Gil de Paz

2002-06-12T23:59:59.000Z

97

Stripline microchannel plate image intensifier tubes (MCPTS) for nanosecond optical gating applications  

SciTech Connect (OSTI)

Shuttering characteristics of low impedance stripline geometry microchannel plate image intensifier tubes (MCPTs) with 50% transmissive nickel undercoated S-20 photocathodes are discussed. Iris-free shutter sequences with 50 to 75 micron resolution at optical gate times of 500ps to 2ns were measured for typical samples from two manufacturers. Shutter sequences clearly showing gate pulse propagation velocities for this MCPT design when externally driven by impedance matched circuitry are contrasted with non-directional sequences obtained from unmatched coupling of the gate pulse. 7 refs., 7 figs.

Yates, G.J.; Jaramillo, S.A.; Zagarino, P.; Thomas, M.

1986-01-01T23:59:59.000Z

98

Suppression of image autocorrelation artefacts in spectral domain optical coherence tomography and multiwave digital holography  

SciTech Connect (OSTI)

An improved method for suppressing image artefacts in spectral domain optical coherence tomography (SD OCT) and multiwave digital holography, caused by the influence of coherent noise in the course of successive registration of an autocorrelation component and informative signal is reported. The method allows complete suppression of all types of coherent noises, provided that the sample of values used to record the autocorrelation component satisfies the conditions of Kotelnikov's theorem: in SD OCT - for the transverse structure of the studied medium, in multiwave digital holography - for the envelop function of the radiation source frequency tuning spectrum.

Gelikonov, V M; Gelikonov, G V; Terpelov, D A; Shabanov, D V; Shilyagin, P A [Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod (Russian Federation)

2012-05-31T23:59:59.000Z

99

Top seeded growth and joining of bulk YBCO.  

SciTech Connect (OSTI)

We report (i) systematic studies of the growth rate for melt textured YBCO, (ii) top seeding growth techniques to determine the minimum seed size, and (iii) joining techniques for melt textured YBCO, enabling the fabrication of large single domain structures of arbitrary shape. Seeded growth of YBCO occurs in a narrow temperature window about 20 C below the peritectic decomposition temperature. Successful top seeding depends on the size of the NdBCO seed crystal. Small seeds are eventually dissolved in the melt before nucleation occurs, while large seeds regularly produce single domain monoliths. Joining techniques based on seeding of low melting point Tm123/Y211 filler material by neighboring YBCO are described. Magneto-optical images of the YBCO/TmBCO/YBCO assembly show no detectable penetration of magnetic field at the joints.

Zheng, H.; Veal, B. W.; Paulikas, A.; Nikolova, R.; Welp, U.; Claus, H.; Crabtree, G. W.

1999-10-26T23:59:59.000Z

100

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

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

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

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101

High-resolution imaging of microvasculature in human skin in-vivo with optical coherence tomography  

E-Print Network [OSTI]

using swept-source optical coherence tomography,” Opt. Lett.J. G. Fujimoto, “Optical coherence tomography,” Science 254(volumes using optical coherence tomography,” Opt. Lett. 22(

Liu, Gangjun; Jia, Wangcun; Sun, Victor; Choi, Bernard; Chen, Zhongping

2012-01-01T23:59:59.000Z

102

High-speed upper-airway imaging using full-range optical coherence tomography  

E-Print Network [OSTI]

Huang et al. , “Optical coherence tomography,” Science 254(endoscopic long-range optical coherence tomogra- phy,” Opt.tracking with optical coherence tomography: proof-of-

Jing, Joseph; Zhang, Jun; Loy, Anthony Chin; Wong, Brian F.; Chen, Zhongping

2012-01-01T23:59:59.000Z

103

ADAPTIVE OPTICS IMAGING OF VY CANIS MAJORIS AT 2-5 ?m WITH LBT/LMIRCam  

SciTech Connect (OSTI)

We present adaptive optics images of the extreme red supergiant VY Canis Majoris in the K{sub s} , L', and M bands (2.15-4.8 ?m) made with LMIRCam on the Large Binocular Telescope. The peculiar ''Southwest Clump'' previously imaged from 1 to 2.2 ?m appears prominently in all three filters. We find its brightness is due almost entirely to scattering, with the contribution of thermal emission limited to at most 25%. We model its brightness as optically thick scattering from silicate dust grains using typical size distributions. We find a lower limit mass for this single feature of 5 × 10{sup –3} M {sub ?} to 2.5 × 10{sup –2} M {sub ?} depending on the assumed gas-to-dust ratio. The presence of the Clump as a distinct feature with no apparent counterpart on the other side of the star is suggestive of an ejection event from a localized region of the star and is consistent with VY CMa's history of asymmetric high-mass-loss events.

Shenoy, Dinesh P.; Jones, Terry J.; Humphreys, Roberta M. [Minnesota Institute for Astrophysics, University of Minnesota, 116 Church Street SE, Minneapolis, MN 55455 (United States); Marengo, Massimo [Department of Physics, Iowa State University, Ames, IA 50011 (United States); Leisenring, Jarron M. [Institute for Astronomy, ETH, Wolfgang-Pauli-Strasse 27, 8093 Zurich (Switzerland); Nelson, Matthew J.; Wilson, John C.; Skrutskie, Michael F. [Department of Astronomy, University of Virginia, 530 McCormick Road, Charlottesville, VA 22904 (United States); Hinz, Philip M.; Hoffmann, William F.; Bailey, Vanessa; Skemer, Andrew; Rodigas, Timothy; Vaitheeswaran, Vidhya, E-mail: shenoy@astro.umn.edu [Steward Observatory, University of Arizona, 933 N. Cherry Avenue, Tucson, AZ 85721 (United States)

2013-10-01T23:59:59.000Z

104

BUSCA A Telescope Instrumentation for Simultaneous Imaging in 4 Optical Bands  

E-Print Network [OSTI]

The "Bonn University Simultaneous CAmera" (BUSCA) is a CCD camera system which allows simultaneous direct imaging of the same sky area in four colors. The optics are designed for an f/8 beam and four 4Kx4K CCDs with 15m pixels covering a field of view of 12 arcmin x 12 arcmin at a 2m class telescope. In September 1998 BUSCA has seen "First Light". The instrument is based on three dichroic beam splitters which separate optical wavelength bands such (at 430nm, 540nm, 730nm) that standard astronomical intermediate-band filter systems can be used. The dichroics are made of plane-parallel glass plates mounted at an angle of 45 degrees. Astigmatism in the transmitted beams (f/8) is completely cancelled by identical plane-parallel glass plates of suitable orientation. BUSCA offers new perspectives in astronomical multicolor photometry: i) The broadband spectral properties (e.g. color indices) of astronomical objects in the optical can be determined with high reliability even in non-photometric atmospheric conditions...

Reif, K; De Boer, K S; Schmoll, J; Müller, P; Poschmann, H; Klink, G; Kohley, R; Heber, U; Mebold, U; Mueller, Ph.

1999-01-01T23:59:59.000Z

105

Faint Radio Sources in the NOAO Bootes Field. VLBA Imaging And Optical Identifications  

SciTech Connect (OSTI)

As a step toward investigating the parsec-scale properties of faint extragalactic radio sources, the Very Long Baseline Array (VLBA) was used at 5.0 GHz to obtain phase-referenced images of 76 sources in the NOAO Booetes field. These 76 sources were selected from the FIRST catalog to have peak flux densities above 10 mJy at 5'' resolution and deconvolved major diameters of less than 3'' at 1.4 GHz. Fifty-five of these faint radio sources were identified with accretion-powered radio galaxies and quasars brighter than 25.5 mag in the optical I band. On VLA scales at 1.4 GHz, a measure of the compactness of the faint sources (the ratio of the peak flux density from FIRST to the integrated flux density from the NVSS catalog) spans the full range of possibilities arising from source-resolution effects. Thirty of the faint radio sources, or 39{sub -7}{sup +9}%, were detected with the VLBA at 5.0 GHz with peak flux densities above 6 {sigma} {approx} 2 mJy at 2 mas resolution. The VLBA detections occur through the full range of compactness ratios. The stronger VLBA detections can themselves serve as phase-reference calibrators, boding well for opening up much of the radio sky to VLBA imaging. For the adopted cosmology, the VLBA resolution corresponds to 17 pc or finer. Most VLBA detections are unresolved or slightly resolved but one is diffuse and five show either double or core-jet structures; the properties of these latter six are discussed in detail. Eight VLBA detections are unidentified and fainter than 25.5 mag in the optical I band; their properties are highlighted because they likely mark optically-obscured active nuclei at high redshift.

Wrobel, J.M.; /NRAO, Socorro; Taylor, Greg B.; /NRAO, Socorro /KIPAC, Menlo Park; Rector, T.A.; /NRAO, Socorro /Alaska U.; Myers, S.T.; /NRAO, Socorro; Fassnacht, C.D.; /UC,

2005-06-13T23:59:59.000Z

106

Faint Radio Sources in the NOAO Bootes Field. VLBA Imaging and Optical Identifications  

E-Print Network [OSTI]

As a step toward investigating the parsec-scale properties of faint extragalactic radio sources, the Very Long Baseline Array (VLBA) was used at 5.0 GHz to obtain phase-referenced images of 76 sources in the NOAO Bootes field. These 76 sources were selected from the FIRST catalog to have peak flux densities above 10 mJy at 5 arcsec resolution and deconvolved major diameters of less than 3 arcsec at 1.4 GHz. Fifty-seven of these faint radio sources were identified with accretion-powered radio galaxies and quasars brighter than 25.5 mag in the optical I band. On VLA scales at 1.4 GHz, a measure of the compactness of the faint sources (the ratio of the peak flux density from FIRST to the integrated flux density from the NVSS catalog) spans the full range of possibilites arising from source-resolution effects. Thirty of the faint radio sources, or 39 +9/-7%, were detected with the VLBA at 5.0 GHz with peak flux densities above 6 sigma ~2 mJy at 2 mas resolution. The VLBA detections occur through the full range of compactness ratios. The stronger VLBA detections can themselves serve as phase-reference calibrators, boding well for opening up much of the radio sky to VLBA imaging. For the adopted cosmology, the VLBA resolution correponds to 17 pc or finer. Most VLBA detections are unresolved or slightly resolved but one is diffuse and five show either double or core-jet structures; the properties of these latter six are discussed in detail. Three VLBA detections are unidentified and fainter than 25.5 mag in the optical I band; their properties are highlighted because they likely mark optically-obscured active nuclei at high redshift.

J. M. Wrobel; G. B. Taylor; T. A. Rector; S. T. Myers; C. D. Fassnacht

2005-06-09T23:59:59.000Z

107

Optical assembly of a visible through thermal infrared multispectral imaging system  

SciTech Connect (OSTI)

The Optical Assembly (OA) for the Multispectral Thermal Imager (MTI) program has been fabricated, assembled, and successfully tested for its performance. It represents a major milestone achieved towards completion of this earth observing E-O imaging sensor that is to be operated in low earth orbit. Along with its wide-field-of-view (WFOV), 1.82{degree} along-track and 1.38{degree} cross-track, and comprehensive on-board calibration system, the pushbroom imaging sensor employs a single mechanically cooled focal plane with 15 spectral bands covering a wavelength range from 0.45 to 10.7 {micro}m. The OA has an off-axis three-mirror anastigmatic (TMA) telescope with a 36-cm unobscured clear aperture. The two key performance criteria, 80% enpixeled energy in the visible and radiometric stability of 1% 1{sigma} in the visible/near-infrared (VNIR) and short wavelength infrared (SWIR), of 1.45% 1{sigma} in the medium wavelength infrared (MWIR), and of 0.53% 1{sigma} long wavelength infrared (LWIR), as well as its low weight (less than 49 kg) and volume constraint (89 cm x 44 cm x 127 cm) drive the overall design configuration of the OA and fabrication requirements.

Henson, T. [Sandia National Labs., Albuquerque, NM (United States); Bender, S.; Byrd, D. [Los Alamos National Labs., NM (United States). NIS Div.; Rappoport, W.; Shen, G.Y. [Raytheon Optical Systems, Inc., Danbury, CT (United States)

1998-06-01T23:59:59.000Z

108

Combing rough set and RBF neural network for large-scale ship recognition in optical satellite images  

Science Journals Connector (OSTI)

Large scale ship recognition in optical remote sensing images is of great importance for many military applications. It aims to recognize the category information of the detected ships for effective maritime surveillance. The contributions of the paper can be summarized as follows: Firstly, based on the rough set theory, the common discernibility degree is used to compute the significance weight of each candidate feature and select valid recognition features automatically; Secondly, RBF neural network is constructed based on the selected recognition features. Experiments on recorded optical satellite images show the proposed method is effective and can get better classification rates at a higher speed than the state of the art methods.

Lu Chunyan; Zou Huanxin; Sun Hao; Zhou Shilin

2014-01-01T23:59:59.000Z

109

Top Science of 2013  

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

110

Top Science of 2013  

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

111

The Advanced Gamma-ray Imaging System (AGIS) Telescope Optical System Designs  

SciTech Connect (OSTI)

AGIS is a conceptual design for a future ground-based gamma-ray observatory operating in the energy range 25 GeV-100 TeV, which is based on an array of {approx}20-100 imaging atmospheric Cherenkov telescopes (IACTs). The desired improvement in sensitivity, angular resolution, and reliability of operation of AGIS imposes demanding technological and cost requirements on the design of the IACTs. We are considering several options for the optical system (OS) of the AGIS telescopes, which include the traditional Davies-Cotton design as well as novel two-mirror design. Emerging mirror production technologies based on replication processes such as cold and hot glass slumping, cured carbon fiber reinforced plastic (CFRP), and electroforming provide new opportunities for cost-effective solutions for the design of the OS.

Bugaev, V.; Buckley, J.; Krawczynski, H. [Washington University (United States); Diegel, S.; Romani, R. [Stanford University (United States); Falcone, A. [Penn State University (United States); Fegan, S.; Vassiliev, V. [UCLA (United States); Finley, J. [Purdue University (United States); Guarino, V. [ANL (United States); Hanna, D. [McGill University (Canada); Kaaret, P. [University of Iowa (United States); Konopelko, A. [Pittsburg State University (United States); Ramsey, B. [MSFC (United States); Weekes, T. [CfA (United States)

2008-12-24T23:59:59.000Z

112

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

SciTech Connect (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

113

Robotic Laser-Adaptive-Optics Imaging of 715 Kepler Exoplanet Candidates using Robo-AO  

E-Print Network [OSTI]

The Robo-AO Kepler Planetary Candidate Survey is designed to observe every Kepler planet candidate host star with laser adaptive optics imaging to search for blended nearby stars, which may be physically associated companions and/or responsible for transit false positives. In this paper we present the results from the 2012 observing season, searching for stars close to 715 representative Kepler planet candidate hosts. We find 53 companions, 44 of which are new discoveries. We detail the Robo-AO survey data reduction methods including a method of using the large ensemble of target observations as mutual point-spread-function references, along with a new automated companion-detection algorithm designed for large adaptive optics surveys. Our survey is sensitive to objects from 0.15" to 2.5" separation, with contrast ratios up to delta-m~6. We measure an overall nearby-star-probability for Kepler planet candidates of 7.4% +/- 1.0%, and calculate the effects of each detected nearby star on the Kepler-measured plan...

Law, Nicholas M; Baranec, Christoph; Riddle, Reed; Ravichandran, Ganesh; Ziegler, Carl; Johnson, John Asher; Tendulkar, Shriharsh P; Bui, Khanh; Burse, Mahesh P; Das, H K; Dekany, Richard G; Kulkarni, Shrinivas; Punnadi, Sujit; Ramaprakash, A N

2013-01-01T23:59:59.000Z

114

Top Physics at ATLAS  

E-Print Network [OSTI]

The Large Hadron Collider LHC is a top quark factory: due to its high design luminosity, LHC will produce about 200 millions of top quarks per year of operation. The large amount of data will allow to study with great precision the properties of the top quark, most notably cross-section, mass and spin. The Top Physics Working Group has been set up at the ATLAS experiment, to evaluate the precision reach of physics measurements in the top sector, and to study the systematic effects of the ATLAS detector on such measurements. This reports give an overview of the main activities of the ATLAS Top Physics Working Group in 2004.

Marcello Barisonzi

2005-08-02T23:59:59.000Z

115

THE LAS CAMPANAS INFRARED SURVEY. III. THE H-BAND IMAGING SURVEY AND THE NEAR-INFRARED AND OPTICAL PHOTOMETRIC CATALOGS  

E-Print Network [OSTI]

THE LAS CAMPANAS INFRARED SURVEY. III. THE H-BAND IMAGING SURVEY AND THE NEAR-INFRARED AND OPTICAL on broadband optical and near-infrared photometry, is designed to robustly identify a statistically significant-reduction techniques, and object identification procedures. We present sam- ple near-infrared and optical photometric

Goddard III, William A.

116

Hubble Space Telescope Imaging of the Optical Transient Associated with GRB970508  

E-Print Network [OSTI]

We report on Hubble Space Telescope (HST) observations of the optical transient (OT) discovered in the error box of the gamma-ray burst GRB970508. The object was imaged on 1997 June 2 with the Space Telescope Imaging Spectrograph (STIS) and Near-Infrared Camera and Multi-Object Spectrometer (NICMOS). The observations reveal a point-like source with R = 23.1 +- 0.2 and H = 20.6 +- 0.3, in agreement with the power-law temporal decay seen in ground-based monitoring. Unlike the case of GRB970228, no nebulosity is detected surrounding the OT of GRB970508. We set very conservative upper limits of R ~ 24.5 and H ~ 22.2 on the brightness of any underlying extended source. If this subtends a substantial fraction of an arcsecond, then the R band limit is ~25.5. In combination with Keck spectra that show Mg I absorption and [O II] emission at a redshift of z = 0.835, our observations suggest that the OT is located in a star-forming galaxy with total luminosity one order of magnitude lower than the knee of the galaxy luminosity function, L*. Such galaxies are now thought to harbor the majority of star formation at z ~ 1; therefore, these observations may provide support for a link between GRBs and star formation.

Elena Pian; Andrew S. Fruchter; Louis E. Bergeron; Steve E. Thorsett; Filippo Frontera; Marco Tavani; Enrico Costa; Marco Feroci; Jules Halpern; Ray A. Lucas; Luciano Nicastro; Eliana Palazzi; Luigi Piro; William Sparks; Alberto J. Castro-Tirado; Ted Gull; Kevin Hurley; Holger Pedersen

1997-10-29T23:59:59.000Z

117

Top Physics at LHC  

E-Print Network [OSTI]

The Large Hadron Collider (LHC) will provide a huge amount of top-antitop events, making the LHC a top quark factory, producing 1 tt pair per second at a luminosity of 10^33cm-2s-1. A large top quark sample will be available from the start of LHC and will play an important role in commissioning the CMS and ATLAS detectors. An overview of the top quark measurements during the first data-taking period is given.

M. Vander Donckt; for the CMS; ATLAS Collaborations

2008-05-21T23:59:59.000Z

118

Optically controlled waveplate at a telecom wavelength using a ladder transition in Rb atoms for all-optical switching and high speed Stokesmetric Imaging  

E-Print Network [OSTI]

We demonstrate an optically controlled waveplate at ~1323 nm using the 5S1/2-5P1/2-6S1/2 ladder transition in a Rb vapor cell. The lower leg of the transitions represents the control beam, while the upper leg represents the signal beam. We show that we can place the signal beam in any arbitrary polarization state with a suitable choice of polarization of the control beam. Specifically, we demonstrate a differential phase retardance of ~180 degrees between the two circularly polarized components of a linearly polarized signal beam. We also demonstrate that the system can act as a Quarter Wave plate. The optical activity responsible for the phase retardation process is explained in terms of selection rules involving the Zeeman sublevels. As such, the system can be used to realize a fast Stokesmetric Imaging system with a speed of nearly 5 MHz. When implemented using a tapered nano fiber embedded in a vapor cell, this system can be used to realize an ultra-low power all-optical switch as well as a Quantum Zeno Effect based all-optical logic gate by combining it with an optically controlled polarizer, previously demonstrated by us. We present numerical simulations of the system using a comprehensive model which incorporates all the relevant Zeeman sub-levels in the system, using a novel algorithm recently developed by us for efficient computation of the evolution of an arbitrary large scale quantum system.

Subramanian Krishnamurthy; Y. Tu; Y. Wang; S. Tseng; M. S. Shahriar

2014-08-01T23:59:59.000Z

119

Inductively coupled plasma chemistry examinations with visible acousto-optic tunable filter hyperspectral imaging{  

E-Print Network [OSTI]

to be a powerful tool for plasma chemistry research. Introduction Inductively coupled plasma optical emission

Duffin, Kirk

120

Ex vivo Imaging of Human Pathologies with Integrated Optical Coherence Tomography (OCT) and Optical Coherence Microscopy (OCM)  

E-Print Network [OSTI]

We report an imaging study using integrated 3D-OCT and OCM for the assessment of various human thyroid and breast pathologies. The 3D-OCT data sets enable en face projection imaging, which provides large field of view with ...

Bryan, Bradley

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

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

122

Optics  

Science Journals Connector (OSTI)

Optical components such as lenses, mirrors and diffraction gratings are widely used in many inspection systems. These include not only those for visual inspection with CCD cameras, but also in areas of distanc...

C. Loughlin

1993-01-01T23:59:59.000Z

123

Enhancement of the resolution of full-field optical coherence tomography by using a colour image sensor  

SciTech Connect (OSTI)

The influence of white balance in a colour image detector on the resolution of a full-field optical coherence tomograph (FFOCT) is studied. The change in the interference pulse width depending on the white balance tuning is estimated in the cases of a thermal radiation source (incandescent lamp) and a white light emitting diode. It is shown that by tuning white balance of the detector in a certain range, the FFOCT resolution can be increased by 20 % as compared to the resolution, attained with the use of a monochrome detector. (optical coherence tomography)

Kalyanov, A L; Lychagov, V V; Smirnov, I V; Ryabukho, V P [N.G. Chernyshevsky Saratov State University, Saratov (Russian Federation)

2013-08-31T23:59:59.000Z

124

Tracking and imaging of dynamic objects in scattering media by time-reversed adapted-perturbation (TRAP) optical focusing  

E-Print Network [OSTI]

The ability to steer light propagation inside scattering media has long been sought-after due to its potential widespread applications. To form optical foci inside scattering media, the only feasible strategy is to guide photons by using either implanted or virtual guide stars. However, all of these guide stars must be introduced extrinsically, either invasively or by physical contact, limiting the scope of their application. Here, we focus light inside scattering media by employing intrinsic dynamics as guide stars. By time-reversing the perturbed component of the scattered light adaptively, we concentrate light to the origin of the perturbation, where the permittivity varied spontaneously. We demonstrate dynamic light focusing onto moving targets and imaging of a time-variant object obscured by highly scattering media, without invasiveness and physical contact. Anticipated applications include all-weather optical communication with airplanes or satellites, tracking vehicles in thick fogs, and imaging and ph...

Ma, Cheng; Liu, Yan; Wang, Lihong V

2014-01-01T23:59:59.000Z

125

Digital optical phase conjugation for delivering two-dimensional images through turbid media  

E-Print Network [OSTI]

Optical transmission through complex media such as biological tissue is fundamentally limited by multiple light scattering. Precise control of the optical wavefield potentially holds the key to advancing a broad range of ...

Yamauchi, Toyohiko

126

Top Science of 2013  

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

RAPTOR telescope witnesses black hole birth science-innovationassetsimagesicon-science.jpg Top Science of 2013 Our strong interdisciplinary teaming and unique research...

127

Top Science of 2013  

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

firsts pave way for greener, faster supercomputing science-innovationassetsimagesicon-science.jpg Top Science of 2013 Our strong interdisciplinary teaming and unique...

128

Top Quark Measurements  

E-Print Network [OSTI]

Ten years after its discovery at the Tevatron collider, we still know little about the top quark. Its large mass suggests it may play a key role in the mechanism of Electroweak Symmetry Breaking (EWSB), or open a window of sensitivity to new physics related to EWSB and preferentially coupled to it. To determine whether this is the case, precision measurements of top quark properties are necessary. The high statistics samples being collected by the Tevatron experiments during Run II start to incisively probe the top quark sector. This report summarizes the experimental status of the top quark, focusing in particular on the recent measurements from the Tevatron Run II.

A. Juste

2005-12-20T23:59:59.000Z

129

Top Physics at CDF  

SciTech Connect (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

130

Nonimaging Optics  

Science Journals Connector (OSTI)

The nonimaging optical system, by definition, does not produce an image of the light source. Instead, it is designed to concentrate radiation at a density as high as theoretically possible. Nonimaging optics h...

Dr. Ralf Leutz; Dr. Akio Suzuki

2001-01-01T23:59:59.000Z

131

Optical and Near-IR Imaging of Ultra Steep Spectrum Radio Sources - The K-z diagram of radio and optically selected galaxies  

E-Print Network [OSTI]

We present optical and/or near-IR images of 128 ultra steep spectrum (USS) radio sources. Roughly half of the objects are identified in the optical images (R 94% are detected at K5). The major axes of the identifications in K-band are preferentially oriented along the radio axes, with half of them having compact morphologies. The 22 sources with spectroscopic redshifts and K-band magnitudes follow the K-z relation found from previous radio samples, but with a larger scatter. We argue that this may be due to a dependence of K-magnitude on the radio power, with the highest radio power sources inhabiting the most massive host galaxies. We present a composite K-z diagram of radio-loud and radio-quiet galaxies, selected from the HDF-North and the Hawaii surveys. Out to z radio-loud galaxies trace the bright envelope of the radio quiet galaxies, while at z >~ 1, the radio-loud galaxies are >~ 2 magnitudes brighter. We argue that this is not due to a contribution from the AGN or emission lines. This difference strongly suggests that radio galaxies pinpoint the most massive systems out to the highest known redshifts, probably due to the mutual correlation of the mass of the galaxy and the radio power on the mass of the central black hole.

Carlos De Breuck; Wil van Breugel; Adam Stanford; Huub Rottgering; George Miley; Daniel Stern

2001-09-28T23:59:59.000Z

132

Neutron Imaging Explored as Complementary Technique for Improving Cancer  

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

133

Top Mass and Properties  

E-Print Network [OSTI]

The top quark was discovered in 1995. The top quark mass is now well measured at the Tevatron, with uncertainty getting below 1% of the top mass. The world average from last year was 170.9 $\\pm$ 1.8 GeV/$c^2$. The new CDF measurement is 172 $\\pm$ 1.2 (stat) $\\pm$ 1.5 (sys) GeV/$c^2$, and D0 will soon present a new measurement. The top quark mass is an important parameter in the Standard Model, and should be measured as precisely as possible. To learn more about the top quark observed and study possible new physics, other properties also should be measured. At the Tevatron, the charge of the top quark can be measured directly. Examples of other properties studied and reported in this presentation are W helicity, top decay branching ratio to b ($R_b$), searches for $t \\to H b$ and for flavor changing neutral current (FCNC). The results are all consistent with the Standard Model within current statistics. With significantly more data being collected at the Tevatron, precision measurements of the top properties are just starting.

Yen-Chu Chen

2008-05-15T23:59:59.000Z

134

The Focusing Optics x-ray Solar Imager: FOXSI Sam Kruckera,b, Steven Christec, Lindsay Glesenera,d, Shin-nosuke Ishikawaa, Stephen  

E-Print Network [OSTI]

. Today's leading solar HXR instrument, the Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI. These limitations make it difficult to study faint x-ray sources in the solar corona which are crucial, solar physics, solar flares, silicon strip detectors, grazing-incidence optics, high-energy x-ray optics

California at Berkeley, University of

135

Top physics at CDF  

SciTech Connect (OSTI)

We report on top physics results using a 100 pb{sup -1} data sample of p{bar p} collisions at {radical}s = 1.8 TeV collected with the Collider Detector at Fermilab (CDF). We have identified top signals in a variety of decay channels, and used these channels to extract a measurement of the top mass and production cross section. A subset of the data (67 pb{sup -1}) is used to determine M{sub top} = 176 {+-} 8(stat) {+-} 10(syst) and {sigma}(tt) = 7.6 {sub -2.0}{sup +2.4} pb. We present studies of the kinematics of t{bar t} events and extract the first direct measurement of V{sub tb}. Finally, we indicate prospects for future study of top physics at the Tevatron.

Hughes, R.E. [Univ. of Rochester, NY (United States)

1997-01-01T23:59:59.000Z

136

Video-rate fluorescence diffuse optical tomography for in vivo sentinel lymph node imaging  

Science Journals Connector (OSTI)

We have developed a fiber-based, video-rate fluorescence diffuse optical tomography (DOT) system for noninvasive in vivo sentinel lymph node (SLN) mapping. Concurrent acquisition of...

Solomon, Metasebya; White, Brian R; Nothdruft, Ralph E; Akers, Walter; Sudlow, Gail; Eggebrecht, Adam T; Achilefu, Samuel; Culver, Joseph P

2011-01-01T23:59:59.000Z

137

Four-dimensional optical coherence tomography imaging of total liquid ventilated rats  

Science Journals Connector (OSTI)

Optical coherence tomography (OCT) can be utilized for the spatially and temporally resolved visualization of alveolar tissue and its dynamics in rodent models, which allows the...

Kirsten, Lars; Schnabel, Christian; Gaertner, Maria; Koch, Edmund

138

Whole-Body Optical Imaging in Animal Models to Assess Cancer Development and Progression  

Science Journals Connector (OSTI)

...imaging weak visible light sources using cooled charged coupled device cameras, Peltier cooled detectors, and microplate channel...Ntziachristos V, Ripoll J, Wang LV, Weissleder R. Looking and listening to light: the evolution of whole-body photonic imaging...

Eric L. Kaijzel; Gabri van der Pluijm; and Clemens W.G.M. Löwik

2007-06-15T23:59:59.000Z

139

Automated segmentation of retinal pigment epithelium cells in fluorescence adaptive optics images  

E-Print Network [OSTI]

Campestre, León, Gto. 37150, Mexico 2 Laboratorio de Sistemas Complejos, Departamento de Ciencias Básicas.2000) Digital image processing; (100.2960) Image analysis; (100.4995) Pattern recogni- tion, metrics; (110

140

Self-image (autoidolon) techniques for the realisation of optical computing type operations  

Science Journals Connector (OSTI)

Self-images of a number of spatially periodic (e.g., gratings) and quasiperiodic (e.g., halftone picture) objects have been systematically studied. These studies indicate that self-imaging techniques could be ...

S V Pappu; H R Manjunath

1979-09-01T23:59:59.000Z

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

Press Pass - Press Release - Single top quark  

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

142

Top Quark Mass Measurements  

Science Journals Connector (OSTI)

First observed in 1995 the top quark is one of a pair of third?generation quarks in the Standard Model of particle physics. It has charge +2/3e and a mass of 171.4 GeV about 40 times heavier than its partner the bottom quark. The CDF and DØ collaborations have identified several hundred events containing the decays of top?antitop pairs in the large dataset collected at the Tevatron proton?antiproton collider over the last four years. They have used these events to measure the top quark’s mass to nearly 1% precision and to study other top quark properties. The mass of the top quark is a fundamental parameter of the Standard Model and knowledge of its value with small uncertainty allows us to predict properties of the as?yet?unobserved Higgs boson. This paper presents the status of the measurements of the top quark mass. It is based on a talk I gave at the Conference on the Intersections of Particle and Nuclear Physics in Puerto Rico May 2006 which also included discussion of measurements of other top quark properties.

A. P. Heinson; CDF Collaboration; DØ Collaboration

2006-01-01T23:59:59.000Z

143

Diffuse optical spectroscopic imaging correlates with final pathological response in breast cancer neoadjuvant chemotherapy  

Science Journals Connector (OSTI)

...middle of and after the completion of pre-surgical neoadjuvant...of a tissue optical index (TOI) were most sensitive...is performed at the completion of therapy (i.e...middle of and after the completion of pre-surgical neoadjuvant...of a tissue optical index (TOI) were most sensitive...

2011-01-01T23:59:59.000Z

144

Application of the optically stimulated luminescence (OSL) technique for mouse dosimetry in micro-CT imaging  

SciTech Connect (OSTI)

Purpose: Micro-CT is considered to be a powerful tool to investigate various models of disease on anesthetized animals. In longitudinal studies, the radiation dose delivered by the micro-CT to the same animal is a major concern as it could potentially induce spurious effects in experimental results. Optically stimulated luminescence dosimeters (OSLDs) are a relatively new kind of detector used in radiation dosimetry for medical applications. The aim of this work was to assess the dose delivered by the CT component of a micro-SPECT (single-photon emission computed tomography)/CT camera during a typical whole-body mouse study, using commercially available OSLDs based on Al{sub 2}O{sub 3}:C crystals.Methods: CTDI (computed tomography dose index) was measured in micro-CT with a properly calibrated pencil ionization chamber using a rat-like phantom (60 mm in diameter) and a mouse-like phantom (30 mm in diameter). OSLDs were checked for reproducibility and linearity in the range of doses delivered by the micro-CT. Dose measurements obtained with OSLDs were compared to those of the ionization chamber to correct for the radiation quality dependence of OSLDs in the low-kV range. Doses to tissue were then investigated in phantoms and cadavers. A 30 mm diameter phantom, specifically designed to insert OSLDs, was used to assess radiation dose over a typical whole-body mouse imaging study. Eighteen healthy female BALB/c mice weighing 27.1 ± 0.8 g (1 SD) were euthanized for small animal measurements. OLSDs were placed externally or implanted internally in nine different locations by an experienced animal technician. Five commonly used micro-CT protocols were investigated.Results: CTDI measurements were between 78.0 ± 2.1 and 110.7 ± 3.0 mGy for the rat-like phantom and between 169.3 ± 4.6 and 203.6 ± 5.5 mGy for the mouse-like phantom. On average, the displayed CTDI at the operator console was underestimated by 1.19 for the rat-like phantom and 2.36 for the mouse-like phantom. OSLDs exhibited a reproducibility of 2.4% and good linearity was found between 60 and 450 mGy. The energy scaling factor was calculated to be between 1.80 ± 0.16 and 1.86 ± 0.16, depending on protocol used. In phantoms, mean doses to tissue over a whole-body CT examination were ranging from 186.4 ± 7.6 to 234.9 ± 7.1 mGy. In mice, mean doses to tissue in the mouse trunk (thorax, abdomen, pelvis, and flanks) were between 213.0 ± 17.0 and 251.2 ± 13.4 mGy. Skin doses (3 OSLDs) were much higher with average doses between 350.6 ± 25.3 and 432.5 ± 34.1 mGy. The dose delivered during a topogram was found to be below 10 mGy. Use of the multimouse bed of the system gave a significantly 20%–40% lower dose per animal (p < 0.05).Conclusions: Absorbed doses in micro-CT were found to be relatively high. In micro-SPECT/CT imaging, the micro-CT unit is mainly used to produce a localization frame. As a result, users should pay attention to adjustable CT parameters so as to minimize the radiation dose and avoid any adverse radiation effects which may interfere with biological parameters studied.

Vrigneaud, Jean-Marc; Courteau, Alan; Oudot, Alexandra; Collin, Bertrand [Department of Nuclear Medicine, Centre Georges-François Leclerc, 1 rue Professeur Marion, Dijon 21079 Cedex (France)] [Department of Nuclear Medicine, Centre Georges-François Leclerc, 1 rue Professeur Marion, Dijon 21079 Cedex (France); Ranouil, Julien [Landauer Europe, 33 avenue du Général Leclerc, Fontenay-aux-Roses 92266 Cedex (France)] [Landauer Europe, 33 avenue du Général Leclerc, Fontenay-aux-Roses 92266 Cedex (France); Morgand, Loïc; Raguin, Olivier [Oncodesign, 20 rue Jean Mazen, Dijon 21076 Cedex (France)] [Oncodesign, 20 rue Jean Mazen, Dijon 21076 Cedex (France); Walker, Paul [LE2i CNRS UMR 5158, Faculty of Medicine, BP 87900, 21079 Dijon Cedex (France)] [LE2i CNRS UMR 5158, Faculty of Medicine, BP 87900, 21079 Dijon Cedex (France); Brunotte, François [Department of Nuclear Medicine, Centre Georges-François Leclerc, 1 rue Professeur Marion, Dijon 21079 Cedex, France and LE2i CNRS UMR 5158, Faculty of Medicine, BP 87900, 21079 Dijon Cedex (France)] [Department of Nuclear Medicine, Centre Georges-François Leclerc, 1 rue Professeur Marion, Dijon 21079 Cedex, France and LE2i CNRS UMR 5158, Faculty of Medicine, BP 87900, 21079 Dijon Cedex (France)

2013-12-15T23:59:59.000Z

145

NEAR-INFRARED ADAPTIVE OPTICS IMAGING OF INFRARED LUMINOUS GALAXIES: THE BRIGHTEST CLUSTER MAGNITUDE-STAR FORMATION RATE RELATION  

SciTech Connect (OSTI)

We have established a relation between the brightest super star cluster (SSC) magnitude in a galaxy and the host star formation rate (SFR) for the first time in the near-infrared (NIR). The data come from a statistical sample of ?40 luminous IR galaxies (LIRGs) and starbursts utilizing K-band adaptive optics imaging. While expanding the observed relation to longer wavelengths, less affected by extinction effects, it also pushes to higher SFRs. The relation we find, M{sub K} ? –2.6log SFR, is similar to that derived previously in the optical and at lower SFRs. It does not, however, fit the optical relation with a single optical to NIR color conversion, suggesting systematic extinction and/or age effects. While the relation is broadly consistent with a size-of-sample explanation, we argue physical reasons for the relation are likely as well. In particular, the scatter in the relation is smaller than expected from pure random sampling strongly suggesting physical constraints. We also derive a quantifiable relation tying together cluster-internal effects and host SFR properties to possibly explain the observed brightest SSC magnitude versus SFR dependency.

Randriamanakoto, Z.; Väisänen, P. [South African Astronomical Observatory, P.O. Box 9, 7935 Observatory, Cape Town (South Africa)] [South African Astronomical Observatory, P.O. Box 9, 7935 Observatory, Cape Town (South Africa); Escala, A. [Departamento de Astronomía, Universidad de Chile, Casilla 36-D, Santiago (Chile)] [Departamento de Astronomía, Universidad de Chile, Casilla 36-D, Santiago (Chile); Kankare, E.; Kotilainen, J.; Mattila, S. [Finnish Centre for Astronomy with ESO (FINCA), University of Turku, Väisäläntie 20, FI-21500 Piikkiö (Finland)] [Finnish Centre for Astronomy with ESO (FINCA), University of Turku, Väisäläntie 20, FI-21500 Piikkiö (Finland); Ryder, S., E-mail: zara@saao.ac.za [Australian Astronomical Observatory, P.O. Box 915, North Ryde, NSW 1670 (Australia)

2013-10-01T23:59:59.000Z

146

Design and fabrication of micro- and nano- dielectric structures for imaging and focusing at optical frequencies  

E-Print Network [OSTI]

In this thesis work, design and fabrication of micro- and nano-photonic structures both in the diffraction regime and sub-wavelength regime have been investigated. In the diffraction regime, two types of optical systems ...

Takahashi, Satoshi, Ph. D. Massachusetts Institute of Technology

2011-01-01T23:59:59.000Z

147

Multispectral breast imaging using a ten-wavelength, 64x64 source/detector channels silicon photodiode-based diffuse optical tomography system  

SciTech Connect (OSTI)

We describe a compact diffuse optical tomography system specifically designed for breast imaging. The system consists of 64 silicon photodiode detectors, 64 excitation points, and 10 diode lasers in the near-infrared region, allowing multispectral, three-dimensional optical imaging of breast tissue. We also detail the system performance and optimization through a calibration procedure. The system is evaluated using tissue-like phantom experiments and an in vivo clinic experiment. Quantitative two-dimensional (2D) and three-dimensional (3D) images of absorption and reduced scattering coefficients are obtained from these experiments. The ten-wavelength spectra of the extracted reduced scattering coefficient enable quantitative morphological images to be reconstructed with this system. From the in vivo clinic experiment, functional images including deoxyhemoglobin, oxyhemoglobin, and water concentration are recovered and tumors are detected with correct size and position compared with the mammography.

Li Changqing; Zhao Hongzhi; Anderson, Bonnie; Jiang Huabei [Department of Biomedical Engineering, University of Florida, Gainesville, Florida 32611-6131 (United States); Department of Radiology, Oconee Memorial Hospital, Seneca, South Carolina 29672 (United States); Department of Biomedical Engineering, University of Florida, Gainesville, Florida 32611-6131 (United States)

2006-03-15T23:59:59.000Z

148

NREL: News Feature - Solar System Tops Off Efficient NREL Building  

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

Solar System Tops Off Efficient NREL Building September 29, 2010 Photo of the sun reflecting off of a solar panel on a roof. Enlarge image More than 1,800 solar panels are being...

149

Top Ten Lists  

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

150

Control and Manipulation of Pathogens with an Optical Trap for Live Cell Imaging of Intercellular Interactions  

E-Print Network [OSTI]

The application of live cell imaging allows direct visualization of the dynamic interactions between cells of the immune system. Some preliminary observations challenge long-held beliefs about immune responses to microorganisms; ...

Tam, Jenny M.

151

In Vivo Voltage-Sensitive Dye Optical Functional Imaging of the Subcortical Brain  

Science Journals Connector (OSTI)

We combined voltage-sensitive dye imaging (VSDi) with gradient-index (GRIN) rod lens to study neural functions in mice vibrissae system. Neural activities evoked in the thalamic...

Tang, Qinggong; Tsytsarev, Vassiliy; Liang, Chia-Pin; Erzurumlu, Reha; Chen, Yu

152

Toward whole-body optical imaging of rats using single-photon counting fluorescence tomography  

Science Journals Connector (OSTI)

We used single-photon counting (SPC) detection for diffuse fluorescence tomography to image nanomolar (nM) concentrations of reporter dyes through a rat. Detailed phantom data are...

Leblond, Frederic; Tichauer, Kenneth M; Holt, Robert W; El-Ghussein, Fadi; Pogue, Brian W

2011-01-01T23:59:59.000Z

153

Multiple Rankine topping cycles  

SciTech Connect (OSTI)

The efficiency of a Rankine cycle is primarily determined by the temperatures of heat addition and rejection. However, no working fluid has been identified which will operate in a Rankine cycle over an extremely wide temperature range. Multiple Rankine topping cycles offer a technique for achieving high thermal efficiencies in power plants by allowing the use of several working fluids. This paper gives a history of Rankine topping cycles, presents an analysis for the calculation of the overall efficiency of a three-module multiple Rankine cycle, and presents results from a case study for a sodium-mercury-water cycle.

McWhirter, J.D. [Argonne National Lab., Idaho Falls, ID (United States). Engineering Div.]|[Idaho State Univ., Pocatello, ID (United States). Coll. of Engineering

1995-07-01T23:59:59.000Z

154

Top Quark Condensate Revisited  

Science Journals Connector (OSTI)

......hence a strong connection with the Higgs boson itself. Such a situation can be...the top quark condensate. The Higgs boson emerges as aft bound state and...at A~ 1019 GeV. (3 19) The Higgs boson was predicted as a ft bound state......

Koichi Yamawaki

1996-02-01T23:59:59.000Z

155

In Situ Monitoring of 3D In Vitro Cell Aggregation Using An Optical Imaging System  

E-Print Network [OSTI]

analysis. We describe a system for the imaging and analysis of cell aggregation, over long periods, within and motion of the aggregates within the bio- reactor were obtained. Detailed size and population data have feedback system to control the growth of 3D cell cultures for repeatable, reliable, and quality controlled

Waters, Sarah

156

In Vivo Optical Microendoscopy for Imaging Cells Lying Deep within Live Tissue  

E-Print Network [OSTI]

brain areas such as the olfactory bulb, the neocortex, or the cerebellar cortex. For imaging cells combined with the broad sets of available fluorescent markers, animal preparations, and genetically the utility of conventional intravital microscopy to superficial tis- sue areas such as the olfactory bulb

Schnitzer, Mark

157

Higher-Order Optical Modes and Nanostructures for Detection and Imaging Applications  

SciTech Connect (OSTI)

Raman spectroscopy offers a label-free, chemically specific, method of detecting molecules; however, the low cross-section attendant to this scattering process has hampered trace detection. The realization that scattering is enhanced at a metallic surface has enabled new techniques for spectroscopic and imaging analysis.

Schultz, Zachary D. [University of Notre Dame, Department of Chemistry and Biochemistry, 251 Nieuwland Science Hall, Notre Dame, IN, 46556 (United States); Levin, Ira W. [National Institutes of Health, National Institute of Diabetes and Digestive and Kidney Diseases, 9000 Rockville Pike, Bethesda, MD, 20892 (United States)

2010-08-06T23:59:59.000Z

158

Final Report on LDRD project 130784 : functional brain imaging by tunable multi-spectral Event-Related Optical Signal (EROS).  

SciTech Connect (OSTI)

Functional brain imaging is of great interest for understanding correlations between specific cognitive processes and underlying neural activity. This understanding can provide the foundation for developing enhanced human-machine interfaces, decision aides, and enhanced cognition at the physiological level. The functional near infrared spectroscopy (fNIRS) based event-related optical signal (EROS) technique can provide direct, high-fidelity measures of temporal and spatial characteristics of neural networks underlying cognitive behavior. However, current EROS systems are hampered by poor signal-to-noise-ratio (SNR) and depth of measure, limiting areas of the brain and associated cognitive processes that can be investigated. We propose to investigate a flexible, tunable, multi-spectral fNIRS EROS system which will provide up to 10x greater SNR as well as improved spatial and temporal resolution through significant improvements in electronics, optoelectronics and optics, as well as contribute to the physiological foundation of higher-order cognitive processes and provide the technical foundation for miniaturized portable neuroimaging systems.

Speed, Ann Elizabeth; Spahn, Olga Blum; Hsu, Alan Yuan-Chun

2009-09-01T23:59:59.000Z

159

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

E-Print Network [OSTI]

) .................................................................88 xvi NOMENCLATURE Abbreviations 2-D Two-dimension 3-D Three-dimension ACR Amplitude ratio AOI Angle of incidence CCD Charge coupled device CT Computed tomography CW... molecular markers of disease at pico-molar to nano-molar concentrations. Light in the UV-visible range does not enable deep 7 penetration for fluorescence imaging mainly because of autofluorescence and a high level of endogenous absorbers...

Hwang, Kil Dong

2009-05-15T23:59:59.000Z

160

Near-Infrared Adaptive Optics Imaging of the Central Regions of Nearby Sc Galaxies: I. M33  

E-Print Network [OSTI]

Near-infrared images obtained with the Canada-France-Hawaii Telescope (CFHT) Adaptive Optics Bonnette (AOB) are used to investigate the stellar content within 18 arcsec of the center of the Local Group spiral galaxy M33. AGB stars with near-infrared spectral-energy distributions similar to those of giants in the solar neighborhood and Baade's Window are detected over most of the field. The bolometric luminosity function (LF) of these stars has a discontinuity near M_{bol} = -5.25, and comparisons with evolutionary tracks suggest that most of the AGB stars formed in a burst of star formation 1 - 3 Gyr in the past. The images are also used to investigate the integrated near-infrared photometric properties of the nucleus and the central light concentration. The nucleus is bluer than the central light concentration, in agreement with previous studies at visible wavelengths. The CO index of the central light concentration 0.5 arcsec from the galaxy center is 0.05, which corresponds to [Fe/H] = -1.2 for simple stellar systems. Hence, the central light concentration could not have formed from the chemically-enriched material that dominates the present-day inner disk of M33.

T. J. Davidge

1999-10-18T23:59:59.000Z

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

Top Jets at the LHC  

E-Print Network [OSTI]

Physics Signatures at the LHC,” talk presented at the 2007Top Jets at the LHC Leandro G. Almeida, Seung J. Lee, GiladSEPT-DPP Top Jets at the LHC Leandro G. Almeida a , Seung J.

Almeida, L.G.

2009-01-01T23:59:59.000Z

162

Building America 2013 Top Innovations  

Broader source: Energy.gov [DOE]

This page provides a listing of and links to 2013 Top Innovations coming out of the Building America program.

163

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

164

Top Physics at the LHC  

E-Print Network [OSTI]

The LHC will be a top quark factory. In this note, the central role of the top quark for LHC physics will be discussed, and an overview will be given of the studies of top quark properties in preparation, with an emphasis on the systematic uncertainties that will dominate most measurements.

P. de Jong

2009-02-27T23:59:59.000Z

165

A soft-X-ray imaging microscope with multilayer-coated Schwarzschild optics  

Science Journals Connector (OSTI)

We constructed a soft-X-ray imaging microscope based on a multilayer-coated Schwarzschild objective. The Schwarzschild objective was designed to have a 50 x magnification and a numerical aperture of 0.25. The mirrors of the objective were coated with a Mo/Si multilayer to reflect the Si L emission. The overall throughput of the objective was 14% at a peak wavelength of 13.3 nm. The 5-?m wide stripe of SiO 2 lithographically patterned was observed under irradiation with an electron beam of 1 ?A.

M. Toyoda; Y. Shitani; M. Yanagihara; T. Ejima; M. Yamamoto; M. Watanabe

2000-01-01T23:59:59.000Z

166

The nature of HHL 73 from optical imaging and Integral Field Spectroscopy  

E-Print Network [OSTI]

We present new results on the nature of the Herbig-Haro-like object 73 (HHL73, also known as [G84b] 11) based on narrow-band CCD H_alpha and [SII] images of the HHL73 field, and Integral Field Spectroscopy and radio continuum observations at 3.6 cm covering the emission of the HHL 73 object. The CCD images allow us to resolve the HHL 73 comet-shaped morphology into two components and a collimated emission feature of ~4" long, reminiscent of a microjet. The IFS spectra of HHL 73 showed emission lines characteristic of the spectra of Herbig--Haro objects. The kinematics derived for HHL~73 are complex. The profiles of the [SII] lambda6717, 6731AA lines were well fitted with a model of three Gaussian velocity components peaking at -100, -20 and +35 km/s. We found differences among the spatial distribution of the kinematic components that are compatible with the emission from a bipolar outflow with two blueshifted (low- and high-velocity) components. Extended radio continuum emission at 3.6 cm was detected showing a distribution in close agreement with the HHL~73 redshifted gas. From the results discussed here, we propose HHL 73 to be a true HH object. IRAS 21432+4719, offset 30 arcsec northeast from the HHL 73 apex, is the most plausible candidate to be driving HHL 73, although the evidence is not conclusive.

R. Lopez; S. F. Sanchez; B. Garcia-Lorenzo; R. Estalella; A. Riera; G. Busquet

2007-11-09T23:59:59.000Z

167

Top quark physics at CDF  

SciTech Connect (OSTI)

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

168

Computing Z_top  

E-Print Network [OSTI]

This is the text of my habilitation thesis defended at the \\'Ecole Normale Sup\\'erieure. The topological string presents an arena in which many features of string theory proper, such as the interplay between worldsheet and target space descriptions or open-closed duality, can be distilled into computational techniques which yield results beyond perturbation theory. In this thesis, I will summarize my research activity in this area. The presentation is organized around computations of the topological string partition function Z_top based on various perspectives on the topological string.

Amir-Kian Kashani-Poor

2014-08-06T23:59:59.000Z

169

Optical Images of an Exosolar Planet 25 Light Years from Earth  

SciTech Connect (OSTI)

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

170

Single Top production at LHC  

E-Print Network [OSTI]

The Production of single top quarks at LHC provides an ideal framework to investigate the properties of electroweak interaction, in particular of the {\\it tWb} coupling. Moreover, single top is a powerful mean to identify physics beyond the standard model. All three different production mechanisms of single top are expected to be observed at LHC. Recent studies from ATLAS and CMS are presented.

M. Mohammadi Najafabadi

2006-05-12T23:59:59.000Z

171

Top Quark Current Experimental Status  

E-Print Network [OSTI]

Ten years after its discovery at the Tevatron collider, we still know little about the top quark. Its large mass suggests it may play a key role in the mechanism of Electroweak Symmetry Breaking (EWSB), or open a window of sensitivity to new physics related to EWSB and preferentially coupled to it. To determine whether this is the case, precision measurements of top quark properties are necessary. The high statistics samples being collected by the Tevatron experiments during Run II start to incisively probe the top quark sector. This report summarizes the experimental status of the top quark, focusing in particular on the recent measurements from the Tevatron.

A. Juste

2006-03-04T23:59:59.000Z

172

Optical Diagnostics Thomas Tsang  

E-Print Network [OSTI]

Optical Diagnostics Thomas Tsang · tight environment · high radiation area · non-serviceable area · passive components · optics only, no active electronics · transmit image through flexible fiber bundle #12;New imaging fiber bundle Core size: 12 µm, diameter: 1/8" Optical Diagnostics Total fiber counts ~50

McDonald, Kirk

173

Imaging  

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

174

Top Quark Properties from Top Pair Events and Decays  

SciTech Connect (OSTI)

Over a decade since the discovery of the top quark we are still trying to unravel mysteries of the heaviest observed particle and learn more about its nature. The continuously accumulating statistics of CDF and DO data provide the means for measuring top quark properties with ever greater precision and the opportunity to search for signs of new physics that could be manifested through subtle deviations from the standard model in the production and decays of top quarks. In the following we present a slice of the rich program in top quark physics at the Fermilab Tevatron: measurements of the properties of top quark decays and searches for unusual phenomena in events with pair produced tops. In particular, we discuss the most recent and precise CDF and DO measurements of the transverse polarization of W bosons from top decays, branching ratios and searches for flavor-changing neutral current decays, decays into charged Higgs and invisible decays. These analyses correspond to integrated luminosities ranging from 0.9 to 2.7 fb{sup -1}.

Ivanov, A.; /UC, Davis

2008-11-01T23:59:59.000Z

175

Optical Design in Phase-Space for the I13L X-Ray Imaging and Coherence Beamline at Diamond using XPHASY  

SciTech Connect (OSTI)

I13L is a 250 m long beamline for imaging and coherent diffraction currently under construction at the Diamond Light Source. For modeling the beamline optics the phase-space based ray-tracing code XPHASY was developed, as general ray-tracing codes for x-rays do not easily allow studying the propagation of coherence along the beamline. In contrast to computational intensive wave-front propagation codes, which fully describe the propagation of a photon-beam along a beamline but obscure the impact of individual optical components onto the beamline performance, this code allows to quickly calculate the photon-beam propagation along the beamline and estimate the impact of individual components.In this paper we will discuss the optical design of the I13L coherence branch from the perspective of phase-space by using XPHASY. We will demonstrate how the phase-space representation of a photon-beam allows estimating the coherence length at any given position along the beamline. The impact of optical components on the coherence length and the effect of vibrations on the beamline performance will be discussed. The paper will demonstrate how the phase-space representation of photon-beams allows a more detailed insight into the optical performance of a coherence beamline than ray-tracing in real space.

Wagner, Ulrich H. [Science, Diamond Light Source Ltd., Didcot, Oxon OX11 0DE (United Kingdom); Rau, Christoph [Science, Diamond Light Source Ltd., Didcot, Oxon OX11 0DE (United Kingdom); Northwestern University, Chicago (United States)

2010-06-23T23:59:59.000Z

177

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

DOE Patents [OSTI]

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

178

Top quark properties at ATLAS  

E-Print Network [OSTI]

The ATLAS potential for the study of the top quark properties and physics beyond the Standard Model in the top quark sector, is described. The measurements of the top quark charge, the spin and spin correlations, the Standard Model decay (t-> bW), rare top quark decays associated to flavour changing neutral currents (t-> qX with X = gluon, Z, photon) and ttbar resonances are discussed. The sensitivity of the ATLAS experiment is estimated for an expected luminosity of 1fb-1 at the LHC. The full simulation of the ATLAS detector is used. For the Standard Model measurements the expected precision is presented. For the tests of physics beyond the Standard Model, the 5 sigma discovery potential (in the presence of a signal) and the 95% Confidence Level (CL) limit (in the absence of a signal) are given.

Dilip Jana; for the ATLAS Collaboration

2008-10-20T23:59:59.000Z

179

ARM - Measurement - Cloud top height  

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

to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Cloud top height For a given cloud or cloud layer, the highest level of the atmosphere where...

180

Smoke busters WIN TOp HONOURS  

E-Print Network [OSTI]

Smoke busters WIN TOp HONOURS Re-brand continues INE|SPRING2010|UNIVERSITYOFWATERLOOMAGAZINE|SPRING2010|UNIVERSITYOFWATERL RSITYOFWATERLOOMAGAZINE|SPRING2010|UNIVERSITYOFWATERLOOMAGAZINE|SPRING2010|UNIVERSITYOFWATERLOOMAGAZINE|SPRING2010 RING2010|UNIVERSITYOFWATERLOOMAGAZINE|SPRING2010|UNIVERSITYOFWATERLOOMAGAZINE|SPRING

Waterloo, University of

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

Top quark production at ATLAS and CMS  

E-Print Network [OSTI]

A review of the main recent results on top quark production from the ATLAS and CMS experiments is presented. Results on both electroweak single top quark production and strong top pair production are presented.

Luca Lista; on behalf of the ATLAS; CMS collaborations

2014-05-20T23:59:59.000Z

182

Uncovering the single top: observation of electroweak top quark production  

SciTech Connect (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

183

Neutron imaging with bent perfect crystals. I. Imaging conditions  

Science Journals Connector (OSTI)

Neutron imaging with bent crystals is considered in the linear approximation of neutron optics. A matrix formalism analogous to that of conventional lens optics is developed.

Stoica, A.D.

2001-05-22T23:59:59.000Z

184

Playing Tag with ANN: Boosted Top Identification with Pattern Recognition  

E-Print Network [OSTI]

Many searches for physics beyond the Standard Model at the Large Hadron Collider (LHC) rely on top tagging algorithms, which discriminate between boosted hadronic top quarks and the much more common jets initiated by light quarks and gluons. We note that the hadronic calorimeter (HCAL) effectively takes a "digital image" of each jet, with pixel intensities given by energy deposits in individual HCAL cells. Viewed in this way, top tagging becomes a canonical pattern recognition problem. With this motivation, we present a novel top tagging algorithm based on an Artificial Neural Network (ANN), one of the most popular approaches to pattern recognition. The ANN is trained on a large sample of boosted tops and light quark/gluon jets, and is then applied to independent test samples. The ANN tagger demonstrated excellent performance in a Monte Carlo study: for example, for jets with p_T in the 1100-1200 GeV range, 60% top-tag efficiency can be achieved with a 4% mis-tag rate. We discuss the physical features of the ...

Almeida, Leandro G; Cliche, Mathieu; Lee, Seung J; Perelstein, Maxim

2015-01-01T23:59:59.000Z

185

Study of Trans-rectal Near-Infrared Diffuse Optical Tomography Concurrent with Trans-rectal Ultrasound for Prostate Imaging.  

E-Print Network [OSTI]

??The objective of this study is to develop an endo-rectal NIR imaging probe coupled with TRUS in sagittal plane. The successful outcome of this research… (more)

Jiang, Zhen

2010-01-01T23:59:59.000Z

186

IEEE TRANSACTIONS ON IMAGE PROCESSING, VOL. 10, NO. 5, JUNE 2001 909 Nonlinear Multigrid Algorithms for Bayesian Optical  

E-Print Network [OSTI]

parameters in highly scattering media such as tissue, polymer composites, sea ice, and aerosols, based [2] produce significant er- rors in the reconstruction for realistic material parameters due iteration, tends to over-smooth edges in the image or produce excessively noisy images, depending

187

Los Alamos National Laboratory top  

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

188

MTS Table Top Load frame  

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

189

SRNL Microspheres Win Top Honors  

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

190

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

191

Top 10 Energy Efficiency Opportunities  

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

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

192

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

193

F Labeling of a Near-Infrared Fluorophore Enables Positron Emission Tomography and Optical Imaging of Sentinel Lymph Nodes  

E-Print Network [OSTI]

Fast 18 F Labeling of a Near-Infrared Fluorophore Enables Positron Emission Tomography and Optical- with a near-infrared fluorophore into a single molecule. Attachment to targeting ligands enables localization by positron emission tomography (PET) and near-infrared fluorescence (NIRF). Our first application

Tsien, Roger Y.

194

Optical computing Damien Woods a  

E-Print Network [OSTI]

Optical computing Damien Woods a aDepartment of Computer Science and Artificial Intelligence Institute, Vierimaantie 5, 84100 Ylivieska, Finland Abstract We consider optical computers that encode data using images and compute by transforming such images. We give an overview of a number of such optical

Woods, Damien

195

Efficient and facile delivery of gold nanoparticles in vivo using dissolvable microneedles for contrast-enhanced optical coherence tomography  

E-Print Network [OSTI]

J. G. Fujimoto, “Optical coherence tomography,” Science 254(and imaging using optical coherence tomography,” Nat. Med.J. G. Fujimoto, “Optical coherence tomography for optical

Kim, Chang Soo; Ahn, Yeh-Chan; Wilder-Smith, Petra; Oh, Seajin; Chen, Zhongping; Kwon, Young Jik

2010-01-01T23:59:59.000Z

196

Top quark studies at hadron colliders  

SciTech Connect (OSTI)

The techniques used to study top quarks at hadron colliders are presented. The analyses that discovered the top quark are described, with emphasis on the techniques used to tag b quark jets in candidate events. The most recent measurements of top quark properties by the CDF and DO Collaborations are reviewed, including the top quark cross section, mass, branching fractions, and production properties. Future top quark studies at hadron colliders are discussed, and predictions for event yields and uncertainties in the measurements of top quark properties are presented.

Sinervo, P.K. [Univ. of Toronto, Ontario (Canada)

1997-01-01T23:59:59.000Z

197

Imaging of quantum Hall edge states under quasiresonant excitation by a near-field scanning optical microscope  

SciTech Connect (OSTI)

A high resolution mapping of quantum Hall edge states has been performed by locally creating electrons with small excess energies with a near-field scanning optical microscope in a dilution refrigerator. We have observed fine structures parallel to the edge in photovoltage signals, which appear only at low temperature. The observed fine structures near sample edges have been seen to shift inward with increase in magnetic field in accordance with Chklovskii Shklovskii, and Glazman model.

Ito, H.; Shibata, Y.; Mamyoda, S.; Ootuka, Y.; Nomura, S. [Division of Physics, University of Tsukuba, Tennodai, Tsukuba, 305-8571 (Japan); Kashiwaya, S. [National Institute of Advanced Industrial Science and Technology (AIST), Umezono, Tsukuba, 305-8568 (Japan); Yamaguchi, M.; Akazaki, T.; Tamura, H. [NTT Basic Research Laboratories, NTT Corporation, Morinosato-Wakamiya, Atsugi, 243-0198 (Japan)

2013-12-04T23:59:59.000Z

198

THE MULTIWAVELENGTH SURVEY BY YALE-CHILE (MUSYC): DEEP MEDIUM-BAND OPTICAL IMAGING AND HIGH-QUALITY 32-BAND PHOTOMETRIC REDSHIFTS IN THE ECDF-S  

SciTech Connect (OSTI)

We present deep optical 18-medium-band photometry from the Subaru telescope over the {approx}30' x 30' Extended Chandra Deep Field-South, as part of the Multiwavelength Survey by Yale-Chile (MUSYC). This field has a wealth of ground- and space-based ancillary data, and contains the GOODS-South field and the Hubble Ultra Deep Field. We combine the Subaru imaging with existing UBVRIzJHK and Spitzer IRAC images to create a uniform catalog. Detecting sources in the MUSYC 'BVR' image we find {approx}40,000 galaxies with R {sub AB} < 25.3, the median 5{sigma} limit of the 18 medium bands. Photometric redshifts are determined using the EAzY code and compared to {approx}2000 spectroscopic redshifts in this field. The medium-band filters provide very accurate redshifts for the (bright) subset of galaxies with spectroscopic redshifts, particularly at 0.1 < z < 1.2 and at z {approx}> 3.5. For 0.1 < z < 1.2, we find a 1{sigma} scatter in {Delta}z/(1 + z) of 0.007, similar to results obtained with a similar filter set in the COSMOS field. As a demonstration of the data quality, we show that the red sequence and blue cloud can be cleanly identified in rest-frame color-magnitude diagrams at 0.1 < z < 1.2. We find that {approx}20% of the red sequence galaxies show evidence of dust emission at longer rest-frame wavelengths. The reduced images, photometric catalog, and photometric redshifts are provided through the public MUSYC Web site.

Cardamone, Carolin N.; Van Dokkum, Pieter G.; Urry, C. Megan; Brammer, Gabriel [Department of Astronomy, Yale University, New Haven, CT 06511 (United States); Taniguchi, Yoshi [Research Center for Space and Cosmic Evolution, Ehime University, Bunkyo-cho 2-5, Matsuyama 790-8577 (Japan); Gawiser, Eric; Bond, Nicholas [Department of Physics and Astronomy, Rutgers University, Piscataway, NJ 08854-8019 (United States); Taylor, Edward; Damen, Maaike [Sterrewacht Leiden, Leiden University, NL-2300 RA Leiden (Netherlands); Treister, Ezequiel [Institute for Astronomy, 2680 Woodlawn Drive, University of Hawaii, Honolulu, HI 96822 (United States); Cobb, Bethany E. [Department of Astronomy, University of California, Berkeley, CA 94720-3411 (United States); Schawinski, Kevin [Yale Center for Astronomy and Astrophysics, Yale University, P.O. Box 208121, New Haven, CT 06520 (United States); Lira, Paulina [Departamento de Astronoma, Universidad de Chile, Casilla 36-D, Santiago (Chile); Murayama, Takashi [Astronomical Institute, Graduate School of Science, Tohoku University, Aramaki, Aoba, Sendai 980-8578 (Japan); Saito, Tomoki [Institute for Physics and Mathematics of the Universe, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8583 (Japan); Sumikawa, Kentaro, E-mail: carolin.cardamone@astro.yale.ed [Graduate School of Science and Engineering, Ehime University, Bunkyo-cho, Matsuyama 790-8577 (Japan)

2010-08-15T23:59:59.000Z

199

Top condensation as a motivated explanation of the top forward-backward asymmetry  

E-Print Network [OSTI]

Models of top condensation can provide both a compelling solution to the hierarchy problem as well as an explanation of why the top-quark mass is large. The spectrum of such models, in particular topcolor-assisted technicolor, includes top-pions, top-rhos and the top-Higgs, all of which can easily have large top-charm or top-up couplings. Large top-up couplings in particular would lead to a top forward-backward asymmetry through $t$-channel exchange, easily consistent with the Tevatron measurements. Intriguingly, there is destructive interference between the top-mesons and the standard model which conspire to make the overall top pair production rate consistent with the standard model. The rate for same-sign top production is also small due to destructive interference between the neutral top-pion and the top-Higgs. Flavor physics is under control because new physics is mostly confined to the top quark. In this way, top condensation can explain the asymmetry and be consistent with all experimental bounds. There are many additional signatures of topcolor with large tu mixing, such as top(s)+jet(s) events, in which a top and a jet reconstruct a resonance mass, which make these models easily testable at the LHC.

Yanou Cui; Zhenyu Han; Matthew D. Schwartz

2011-06-15T23:59:59.000Z

200

Current collapse imaging of Schottky gate AlGaN/GaN high electron mobility transistors by electric field-induced optical second-harmonic generation measurement  

SciTech Connect (OSTI)

Two-dimensional current collapse imaging of a Schottky gate AlGaN/GaN high electron mobility transistor device was achieved by optical electric field-induced second-harmonic generation (EFISHG) measurements. EFISHG measurements can detect the electric field produced by carriers trapped in the on-state of the device, which leads to current collapse. Immediately after (e.g., 1, 100, or 800??s) the completion of drain-stress voltage (200?V) in the off-state, the second-harmonic (SH) signals appeared within 2??m from the gate edge on the drain electrode. The SH signal intensity became weak with time, which suggests that the trapped carriers are emitted from the trap sites. The SH signal location supports the well-known virtual gate model for current collapse.

Katsuno, Takashi, E-mail: e1417@mosk.tytlabs.co.jp; Ishikawa, Tsuyoshi; Ueda, Hiroyuki; Uesugi, Tsutomu [Toyota Central R and D Laboratories Inc., Nagakute, Aichi 480-1192 (Japan); Manaka, Takaaki; Iwamoto, Mitsumasa [Department of Physical Electronics, Tokyo Institute of Technology, Meguro, Tokyo 152-8552 (Japan)

2014-06-23T23:59:59.000Z

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

Building Technologies Office: Top Innovations 2012  

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

202

Modeling and control of top tensioned risers  

E-Print Network [OSTI]

1 Modeling and control of top tensioned risers Anne Marthine Rustad Department of Marine Technology increasing platform size · Constant high top tension is expensive and could result in wear and tear

Nørvåg, Kjetil

203

Theory of top quark production and decay  

SciTech Connect (OSTI)

Direct and indirect information on the top quark mass and its decay modes is reviewed. The theory of top production in hadron- and electron-positron-colliders is presented.

Kuehn, J.H. [Universitaet Karlsruhe (Germany)

1997-01-01T23:59:59.000Z

204

Top partner probes of extended Higgs sectors  

E-Print Network [OSTI]

Natural theories of the weak scale often include fermionic partners of the top quark. If the electroweak symmetry breaking sector contains scalars beyond a single Higgs doublet, then top partners can have sizable branching ...

Kearney, John

205

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

206

Top quark physics at the LHC  

E-Print Network [OSTI]

The physics perspectives of the production and decay of single top quarks and top quark pairs at the CERN Large Hadron Collider (LHC) are reviewed from a phenomenological point of view.

Werner Bernreuther

2008-05-09T23:59:59.000Z

207

Heavy flavour physics from top to bottom  

SciTech Connect (OSTI)

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{bar B} mixing results. An outlook of perspectives for top and B physics in Run II starting in 1999 is also given. 38 refs., 23 figs., 8 tabs.

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

1997-01-01T23:59:59.000Z

208

Top quark physics expectations at the LHC  

E-Print Network [OSTI]

The top quark will be produced copiously at the LHC. This will make both detailed physics studies and the use of top quark decays for detector calibration possible. This talk reviews plans and prospects for top physics activities in the ATLAS and CMS experiments.

Andrei Gaponenko; for the ATLAS Collaboration; for the CMS Collaboration

2008-10-22T23:59:59.000Z

209

Grant Reference Principal Investigator Research Organisation Project Title NE/J013544/1 Professor B Hubbard Aberystwyth University Extended-range optical televiewer imaging of the NEEM deep ice borehole, Greenland  

E-Print Network [OSTI]

Grant Reference Principal Investigator Research Organisation Project Title NE/J013544/1 Professor B Hubbard Aberystwyth University Extended-range optical televiewer imaging of the NEEM deep ice borehole/1 Dr A Bedford Edge Hill University Late Holocene temperature reconstruction from Hawes Water northwest

210

Infrared Scattering Scanning Near-Field Optical Microscopy Using An External Cavity Quantum Cascade Laser For Nanoscale Chemical Imaging And Spectroscopy of Explosive Residues  

SciTech Connect (OSTI)

Infrared scattering scanning near-field optical microscopy (s-SNOM) is an apertureless superfocusing technique that uses the antenna properties of a conducting atomic force microscope (AFM) tip to achieve infrared spatial resolution below the diffraction limit. The instrument can be used either in imaging mode, where a fixed wavelength light source is tuned to a molecular resonance and the AFM raster scans an image, or in spectroscopy mode where the AFM is held stationary over a feature of interest and the light frequency is varied to obtain a spectrum. In either case, a strong, stable, coherent infrared source is required. Here we demonstrate the integration of a broadly tunable external cavity quantum cascade laser (ECQCL) into an s-SNOM and use it to obtain infrared spectra of microcrystals of chemicals adsorbed onto gold substrates. Residues of the explosive compound tetryl was deposited onto gold substrates. s-SNOM experiments were performed in the 1260-1400 cm?1 tuning range of the ECQCL, corresponding to the NO2 symmetric stretch vibrational fingerprint region. Vibrational infrared spectra were collected on individual chemical domains with a collection area of *500nm2 and compared to ensemble averaged far-field reflection-absorption infrared spectroscopy (RAIRS) results.

Craig, Ian M.; Phillips, Mark C.; Taubman, Matthew S.; Josberger, Erik E.; Raschke, Markus Bernd

2013-02-04T23:59:59.000Z

211

First Results On Shear-Selected Clusters From the Deep Lens Survey: Optical Imaging, Spectroscopy, and X-ray Followup  

E-Print Network [OSTI]

We present the first sample of galaxy clusters selected on the basis of their weak gravitational lensing shear. The shear induced by a cluster is a function of its mass profile and its redshift relative to the background galaxies being sheared; in contrast to more traditional methods of selecting clusters, shear selection does not depend on the cluster's star formation history, baryon content, or dynamical state. Because mass is the property of clusters which provides constraints on cosmological parameters, the dependence on these other parameters could induce potentially important biases in traditionally-selected samples. Comparison of a shear-selected sample with optically and X-ray selected samples is therefore of great importance. Here we present the first step toward a new shear-selected sample: the selection of cluster candidates from the first 8.6 deg$^2$ of the 20 deg$^2$ Deep Lens Survey (DLS), and tabulation of their basic properties such as redshifts and optical and X-ray counterparts.

Wittman, D; Hughes, J P; Margoniner, V E; Tyson, J A; Cohen, J G; Norman, D

2006-01-01T23:59:59.000Z

212

First Results On Shear-Selected Clusters From the Deep Lens Survey: Optical Imaging, Spectroscopy, and X-ray Followup  

E-Print Network [OSTI]

We present the first sample of galaxy clusters selected on the basis of their weak gravitational lensing shear. The shear induced by a cluster is a function of its mass profile and its redshift relative to the background galaxies being sheared; in contrast to more traditional methods of selecting clusters, shear selection does not depend on the cluster's star formation history, baryon content, or dynamical state. Because mass is the property of clusters which provides constraints on cosmological parameters, the dependence on these other parameters could induce potentially important biases in traditionally-selected samples. Comparison of a shear-selected sample with optically and X-ray selected samples is therefore of great importance. Here we present the first step toward a new shear-selected sample: the selection of cluster candidates from the first 8.6 deg$^2$ of the 20 deg$^2$ Deep Lens Survey (DLS), and tabulation of their basic properties such as redshifts and optical and X-ray counterparts.

D. Wittman; I. P. Dell'Antonio; J. P. Hughes; V. E. Margoniner; J. A. Tyson; J. G. Cohen; D. Norman

2005-07-26T23:59:59.000Z

213

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

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

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....

214

Top Quark Mass Measurements at the Tevatron  

SciTech Connect (OSTI)

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

215

MHD Integrated Topping Cycle Project  

SciTech Connect (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

216

Table-top job analysis  

SciTech Connect (OSTI)

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

217

Electrowetting on liquid-infused film (EWOLF): Complete reversibility and controlled droplet oscillation suppression for fast optical imaging  

E-Print Network [OSTI]

Electrowetting on dielectric (EWOD) has emerged as a powerful tool to electrically manipulate tiny individual droplets in a controlled manner. Despite tremendous progress over the past two decades, current EWOD operating in ambient conditions has limited functionalities posing challenges for its applications, including electronic display, energy generation, and microfluidic systems. Here, we demonstrate a new paradigm of electrowetting on liquid-infused film (EWOLF) that allows for complete reversibility and tunable transient response simultaneously. We determine that these functionalities in EWOLF are attributed to its novel configuration, which allows for the formation of viscous liquid-liquid interfaces as well as additional wetting ridges, thereby suppressing the contact line pinning and severe droplet oscillation encountered in the conventional EWOD. Finally, by harnessing these functionalities demonstrated in EWOLF, we also explore its application as liquid lens for fast optical focusing.

Hao, Chonglei; Chen, Xuemei; He, Yuncheng; Li, Qiusheng; Li, K Y; Wang, Zuankai

2014-01-01T23:59:59.000Z

218

Discovering strong top dynamics at the LHC  

Science Journals Connector (OSTI)

We analyze the phenomenology of the top-pion and top-Higgs states in models with strong top dynamics, and translate the present LHC searches for the Standard Model Higgs into bounds on these scalar states. We explore the possibility that the new state at a mass of approximately 125 GeV observed at the LHC is consistent with a neutral pseudoscalar top-pion state. We demonstrate that a neutral pseudoscalar top pion can generate the diphoton signal at the observed rate. However, the region of model parameter space where this is the case does not correspond to classic top-color-assisted technicolor scenarios with degenerate charged and neutral top pions and a top-Higgs mass of order 2mt; rather, additional isospin violation would need to be present and the top dynamics would be more akin to that in top seesaw models. Moreover, the interpretation of the new state as a top pion can be sustained only if the ZZ (four-lepton) and WW (two-lepton plus missing energy) signatures initially observed at the 3? level decline in significance as additional data are accrued.

R. Sekhar Chivukula; Pawin Ittisamai; Elizabeth H. Simmons; Baradhwaj Coleppa; Heather E. Logan; Adam Martin; Jing Ren

2012-11-16T23:59:59.000Z

219

MHD Integrated Topping Cycle Project  

SciTech Connect (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

220

MHD Integrated Topping Cycle Project  

SciTech Connect (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

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

Intracoronary Optical Diagnostics  

E-Print Network [OSTI]

Optical coherence tomography (OCT), is a novel intravascular imaging modality analogous to intravascular ultrasound but uses light instead of sound. This review details the background, development, and status of current ...

Lowe, Harry C.

222

Advanced Optics | Center for Functional Nanomaterials  

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

223

MHD Integrated Topping Cycle Project  

SciTech Connect (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

224

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

225

Top Innovations 2012 | Department of Energy  

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

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

226

Infrastructure Development- Building America Top Innovations  

Broader source: Energy.gov [DOE]

Top Innovations in this category include research results that have influenced codes and standards and improvements in education and the transaction process.

227

Water Management Guide- Building America Top Innovation  

Broader source: Energy.gov [DOE]

This Top Innovation highlights the DOE-sponsored Water Management Guide, which has proven to be a highly effective tool for disseminating much needed best practices.

228

Mesa Top Photovoltaic Array (Fact Sheet)  

SciTech Connect (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

229

Ultraviolet photodissociation enhances top?down mass...  

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

Ultraviolet photodissociation enhances top-down mass spectrometry as demonstrated on green fluorescent protein variants Xibei Dang 1,2 and Nicolas L. Young 1 1 Ion Cyclotron...

230

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

231

Signal and imaging sciences workshop proceedings  

SciTech Connect (OSTI)

Papers are presented in the areas of: Medical Technologies; Non-Destructive Evaluation; Applications of Signal/Image Processing; Laser Guide Star and Adaptive Optics; Computational Electromagnetic, Acoustics and Optics; Micro-Impulse Radar Processing; Optical Applications; TANGO Space Shuttle.

Candy, J.V.

1997-11-01T23:59:59.000Z

232

Three-dimensional phantoms for curvature correction in spatial frequency domain imaging  

Science Journals Connector (OSTI)

The sensitivity to surface profile of non-contact optical imaging, such as spatial frequency domain imaging, may lead to incorrect measurements of optical properties and consequently...

Nguyen, Thu T A; Le, Hanh N D; Vo, Minh; Wang, Zhaoyang; Luu, Long; Ramella-Roman, Jessica C

2012-01-01T23:59:59.000Z

233

MHD Integrated Topping Cycle Project  

SciTech Connect (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

234

Final TOPS Rpt-10pt.PDF  

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

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

235

CP violation in top-quark physics  

E-Print Network [OSTI]

In this talk I review how to search for CP violation in top-quark pair production and decay using T-odd correlations. I discuss two examples which illustrate many of the relevant features: CP violation in a heavy neutral Higgs boson; and CP violating anomalous top-quark couplings. I present some numerical results for the LHC and some for the Tevatron.

German Valencia

2010-07-27T23:59:59.000Z

236

Review of Top Quark Physics Results  

SciTech Connect (OSTI)

As the heaviest known fundamental particle, the top quark has taken a central role in the study of fundamental interactions. Production of top quarks in pairs provides an important probe of strong interactions. The top quark mass is a key fundamental parameter which places a valuable constraint on the Higgs boson mass and electroweak symmetry breaking. Observations of the relative rates and kinematics of top quark final states constrain potential new physics. In many cases, the tests available with study of the top quark are both critical and unique. Large increases in data samples from the Fermilab Tevatron have been coupled with major improvements in experimental techniques to produce many new precision measurements of the top quark. The first direct evidence for electroweak production of top quarks has been obtained, with a resulting direct determination of V{sub tb}. Several of the properties of the top quark have been measured. Progress has also been made in obtaining improved limits on potential anomalous production and decay mechanisms. This review presents an overview of recent theoretical and experimental developments in this field. We also provide a brief discussion of the implications for further efforts.

Kehoe, R.; Narain, M.; Kumar, A.; ,

2007-12-01T23:59:59.000Z

237

Excitons in a mirror: Formation of “optical bilayers” using MoS{sub 2} monolayers on gold substrates  

SciTech Connect (OSTI)

We report coupling of excitons in monolayers of molybdenum disulphide to their mirror image in an underlying gold substrate. Excitons at the direct band gap are little affected by the substrate whereas strongly bound C-excitons associated with a van-Hove singularity change drastically. On quartz substrates only one C-exciton is visible (in the blue) but on gold substrates a strong red-shifted extra resonance in the green is seen. Exciton coupling to its image leads to formation of a “mirror biexciton” with enhanced binding energy. Estimates of this energy shift in an emitter-gold system match experiments well. The absorption spectrum of MoS{sub 2} on gold thus resembles a bilayer of MoS{sub 2} which has been created by optical coupling. Additional top-mirrors produce an “optical bulk.”.

Mertens, Jan; Baumberg, Jeremy J., E-mail: jjb12@cam.ac.uk [Nanophotonics Centre, Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE (United Kingdom); Shi, Yumeng; Yang, Hui Ying, E-mail: yanghuiying@sutd.edu.sg [Pillar of Engineering Product Development, Singapore University of Technology and Design, Singapore 138682 (Singapore); Molina-Sánchez, Alejandro; Wirtz, Ludger [Physics and Materials Science Research Unit, University of Luxembourg, L-1511 Luxembourg (Luxembourg)

2014-05-12T23:59:59.000Z

238

Electric top drives gain wide industry acceptance  

SciTech Connect (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

239

The Top Quark, QCD, And New Physics.  

DOE R&D Accomplishments [OSTI]

The role of the top quark in completing the Standard Model quark sector is reviewed, along with a discussion of production, decay, and theoretical restrictions on the top quark properties. Particular attention is paid to the top quark as a laboratory for perturbative QCD. As examples of the relevance of QCD corrections in the top quark sector, the calculation of e{sup+}e{sup -}+ t{bar t} at next-to-leading-order QCD using the phase space slicing algorithm and the implications of a precision measurement of the top quark mass are discussed in detail. The associated production of a t{bar t} pair and a Higgs boson in either e{sup+}e{sup -} or hadronic collisions is presented at next-to-leading-order QCD and its importance for a measurement of the top quark Yulrawa coupling emphasized. Implications of the heavy top quark mass for model builders are briefly examined, with the minimal supersymmetric Standard Model and topcolor discussed as specific examples.

Dawson, S.

2002-06-00T23:59:59.000Z

240

Top Quark Production at the Tevatron  

SciTech Connect (OSTI)

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

Note: This page contains sample records for the topic "images top optical" 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
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241

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

242

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

243

NERSC Supports 2013's Top Breakthroughs  

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

244

LANL named 2010 top corporate volunteer organization  

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

245

How to rank the top500 list?  

E-Print Network [OSTI]

HOW TO RANK THE TOP500 LIST? Lin-Wang Wang Computationalone question emerged: how to rank the computers according tothe first 10 computers. Old rank (based on speed) New rank (

Wang, Lin-Wang

2008-01-01T23:59:59.000Z

246

Top Low- or No-Cost Improvements  

Broader source: Energy.gov [DOE]

This presentation describes the top low- or no-cost projects to improve energy efficiency as identified in energy assessments performed by DOE and by the Industrial Assessment Centers.

247

Top ECMs for Labs and Data Centers  

Broader source: Energy.gov [DOE]

Presentation—given at at the Fall 2012 Federal Utility Partnership Working Group (FUPWG) meeting—covers the top energy conservation measures (ECMs) laboratories and data centers can apply for energy efficiency and savings.

248

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...

249

Enter Keyword(s) Today's Ecology Top  

E-Print Network [OSTI]

Enter Keyword(s) Today's Ecology Top News OMG's Business Ecology Initiative BEI Reaches 250 Member Advertisement Ecology Topics Botany Climate Research Ecology Environment Environmental Microbiology Environmental Monitoring Environmental Research Fisheries Research Marine Biology Meteorology Molecular Ecology

250

JLab Cluster Tops 100 Teraflops | Jefferson Lab  

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

JLab Cluster Tops 100 Teraflops NEWPORT NEWS, VA, Oct. 14 - The fastest computer system in Hampton Roads has booted up with more than 100 Teraflops of processing power. Located at...

251

SMB, X-ray Fluorescence Imaging  

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

Fluorescence Imaging X-ray Fluorescence Imaging X-ray fluorescence imaging utilizes the high brightness of SPEAR3 and focused beam generated by the uses of K-B optics, capillaries...

252

Building Technologies Office: Building America's Top Innovations Advance  

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

253

Water Management Guide - Building America Top Innovation | Department...  

Energy Savers [EERE]

Water Management Guide - Building America Top Innovation Water Management Guide - Building America Top Innovation Cover of the EEBA Water Management Guide. As energy codes and...

254

Tankless Gas Water Heater Performance - Building America Top...  

Energy Savers [EERE]

Tankless Gas Water Heater Performance - Building America Top Innovation Tankless Gas Water Heater Performance - Building America Top Innovation This photo shows a hot water heater...

255

The Business Case for Fuel Cells 2011: Energizing America's Top...  

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

1: Energizing America's Top Companies The Business Case for Fuel Cells 2011: Energizing America's Top Companies This report profiles a select group of nationally recognizable...

256

Next Generation Advanced Framing - Building America Top Innovation...  

Energy Savers [EERE]

Next Generation Advanced Framing - Building America Top Innovation Next Generation Advanced Framing - Building America Top Innovation This photo shows advanced framing on a rim...

257

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

258

Top quark jets at the LHC  

Science Journals Connector (OSTI)

We investigate the reconstruction of high pT hadronically decaying top quarks at the Large Hadron Collider. One of the main challenges in identifying energetic top quarks is that the decay products become increasingly collimated. This reduces the efficacy of conventional reconstruction methods that exploit the topology of the top quark decay chain. We focus on the cases where the decay products of the top quark are reconstructed as a single jet, a “top jet.” The most basic “top-tagging” method based on jet mass measurement is considered in detail. To analyze the feasibility of the top-tagging method, both theoretical and experimental aspects of the large QCD jet background contribution are examined. Based on a factorization approach, we derive a simple analytic approximation for the shape of the QCD jet mass spectrum. We observe very good agreement with the Monte Carlo simulation. We consider high-pT tt¯ production in the standard model as an example, and show that our theoretical QCD jet mass distributions can efficiently characterize the background via sideband analyses. We show that with 25??fb-1 of data, our approach allows us to resolve top jets with pT?1??TeV, from the QCD background, and about 1.5 TeV top jets with 100??fb-1, without relying on b-tagging. To further improve the significance we consider jet shapes (recently analyzed in 10), which resolve the substructure of energy flow inside cone jets. A method of measuring the top quark polarization by using the transverse momentum of the bottom quark is also presented. The main advantages of our approach are (i) the mass distributions are driven by first principle calculations, instead of relying solely on Monte Carlo simulation; (ii) for high pT jets (pT?1??TeV), IR-safe jet shape variables are robust against detector resolution effects. Our analysis can be applied to other boosted massive particles such as the electroweak gauge bosons and the Higgs.

Leandro G. Almeida; Seung J. Lee; Gilad Perez; Ilmo Sung; Joseph Virzi

2009-04-16T23:59:59.000Z

259

Center for X-Ray Optics, 1991  

SciTech Connect (OSTI)

This report discusses: Soft-X-Ray imaging with zone-plate lenses; multilayer reflective optics; and spectroscopy with x-rays.

Not Available

1992-03-01T23:59:59.000Z

260

International Society for Optical Engineering (SPIE) Fellows  

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

SPIE recognizes accomplishments and meritorious service in the optics, photonics, optoelectronics, and imaging communities it serves. Fellows are members of distinction who have...

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

Optical Fibers Optics and Photonics  

E-Print Network [OSTI]

Optical Fibers Optics and Photonics Dr. Palffy-Muhoray Ines Busuladzic Department of Theoretical and Applied Mathematics The University of Akron April 21, 2008 #12;Outline · History of optical fibers · What are optical fibers? · How are optical fibers made? · Light propagation through optical fibers · Application

Palffy-Muhoray, Peter

262

Production and decay of heavy top quarks  

SciTech Connect (OSTI)

Experimental evidence indicates that the top quark exists and has a mass between 50 and 200 GeV/c{sup 2}. The decays of a top quark with a mass in this range are studied with emphasis placed on the mass region near the threshold for production of real W bosons. Topics discussed are: (1) possible enhancement of strange quark production when M{sub W} + m{sub s} < m{sub t} < M{sub W} + m{sub b}; (2) exclusive decays of T mesons to B and B{asterisk} mesons using the non-relativistic quark model; (3) polarization of intermediate W's in top quark decay as a source of information on the top quark mass. The production of heavy top quarks in an e{sup +}e{sup {minus}} collider with a center-of-mass energy of 2 TeV is studied. The effective-boson approximation for photons, Z{sup 0}'s and W's is reviewed and an analogous approximation for interfaces between photons and Z{sup 0}'s is developed. The cross sections for top quark pair production from photon-photon, photon-Z{sup 0}, Z{sup 0}Z{sup 0}, and W{sup +}W{sup {minus}} fusion are calculated using the effective-boson approximation. Production of top quarks along with anti-bottom quarks via {gamma}W{sup +} and Z{sup 0}W{sup +} fusion is studied. An exact calculation of {gamma}e{sup +} {yields} {bar {nu}}t{bar b} is made and compared with the effective-W approximation. 31 refs., 46 figs.

Kauffman, R.P.

1989-08-01T23:59:59.000Z

263

Collaborative Initiative in Biomedical Imaging to Study Complex Diseases  

SciTech Connect (OSTI)

The work reported addressed these topics: Fluorescence imaging; Optical coherence tomography; X-ray interferometer/phase imaging system; Quantitative imaging from scattered fields, Terahertz imaging and spectroscopy; and Multiphoton and Raman microscopy.

Lin, Weili [The University of North Carolina at Chapel Hill; Fiddy, Michael A. [The University of North Carolina at Charlotte

2012-03-31T23:59:59.000Z

264

Photothermal imaging scanning microscopy  

DOE Patents [OSTI]

Photothermal Imaging Scanning Microscopy produces a rapid, thermal-based, non-destructive characterization apparatus. Also, a photothermal characterization method of surface and subsurface features includes micron and nanoscale spatial resolution of meter-sized optical materials.

Chinn, Diane (Pleasanton, CA); Stolz, Christopher J. (Lathrop, CA); Wu, Zhouling (Pleasanton, CA); Huber, Robert (Discovery Bay, CA); Weinzapfel, Carolyn (Tracy, CA)

2006-07-11T23:59:59.000Z

265

Fabry-Perot fiber optic sensor using multimode laser diode  

E-Print Network [OSTI]

heating and cooling cycles. Also, a sporadic waveform on top of the periodic waveform is observed. This is due to mechanical drift in the feedback loop between the thermoelectric cooler and the temperature controller as previously mentioned. Fig. 11... fiber and later reaches a transducer, which takes the form of an integrated optics device, bulk optical components or a fiber optic device, placed within the sensing environment. The optical signal is modulated within the sensing region...

Chu, Siu Yi Andrew

1993-01-01T23:59:59.000Z

266

Advances in Imaging Secondary Ion Mass  

E-Print Network [OSTI]

Words membrane organization, chemical composition imaging, NanoSIMS, ToF-SIMS, dynamic SIMS Abstract cited articles · Top downloaded articles · Our comprehensive search FurtherANNUAL REVIEWS #12;SIMS ToF-SIMS. . . . . . . . . . . . . . . . . . . . . . . . . 56 Dynamic SIMS

Boxer, Steven G.

267

Buried and Encapsulated Ducts- Building America Top Innovation  

Broader source: Energy.gov [DOE]

This Top Innovation profile highlights Building America research into insulating ductwork that is in unconditioned attics.

268

Furnace Blower Performance Improvements- Building America Top Innovation  

Broader source: Energy.gov [DOE]

This Top Innovation profile describes Building America research into improving efficiency of furnace fan blowers.

269

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

SciTech Connect (OSTI)

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

Not Available

2010-12-01T23:59:59.000Z

270

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"

271

Mesa Top Photovoltaic Array, NREL (Fact Sheet)  

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

272

Mesa Top Photovoltaic Array, NREL (Fact Sheet)  

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

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

273

Drilling of wells with top drive unit  

SciTech Connect (OSTI)

Well drilling apparatus including a top drive drilling assembly having a motor driven stem adapted to be attached to the upper end of a drill string and drive it during a drilling operation, a torque wrench carried by the top drive assembly and movable upwardly and downwardly therewith and operable to break a threated connection between the drill string and the stem, and an elevator carried by and suspended from the top drive assembly and adapted to engage a section of drill pipe beneath the torque wrench in suspending relation. The torque wrench and elevator are preferably retained against rotation with the rotary element which drives the drill string, but may be movable vertically relative to that rotary element and relative to one another in a manner actuating the apparatus between various different operating conditions.

Boyadjieff, G.I.

1984-05-22T23:59:59.000Z

274

Dynamic Spectral Imaging: Improving Colposcopy  

Science Journals Connector (OSTI)

...image pixel of the cervix. The optical head provides uniform illumination with a focused and collimated white light-emitting diode, and imaging with magnification optics coupled to a 1,024 768, 8-bit/channel digital color CCD camera...

William P. Soutter; Emmanuel Diakomanolis; Deirdre Lyons; Sadaf Ghaem-Maghami; Tosin Ajala; Dimitrios Haidopoulos; Dimitrios Doumplis; Costas Kalpaktsoglou; Gerasimos Sakellaropoulos; Suzan Soliman; Karen Perryman; Vicky Hird; C. Hilary Buckley; Kitty Pavlakis; Sofia Markaki; Roberto Dina; Vourneen Healy; Costas Balas

2009-03-01T23:59:59.000Z

275

Doe's Race to the top initiative  

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

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

276

Evidence for production of single top quarks  

Science Journals Connector (OSTI)

We present first evidence for the production of single top quarks in the D0 detector at the Fermilab Tevatron pp¯ 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 data sets. In this analysis, we select events from a 0.9??fb-1 data set 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 tt¯ 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 ?(pp¯?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 |Vtbf1L|=1.31-0.21+0.25, where f1L is a generic vector coupling. This model-independent measurement translates into 0.68<|Vtb|?1 at the 95% C.L. in the standard model.

V. M. Abazov et al. (The D0 Collaboration)

2008-07-14T23:59:59.000Z

277

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

278

Building a Better Boosted Top Tagger  

E-Print Network [OSTI]

Distinguishing hadronically decaying boosted top quarks from massive QCD jets is an important challenge at the Large Hadron Collider. In this paper we use the power counting method to study jet substructure observables designed for top tagging, and gain insight into their performance. We introduce a powerful new family of discriminants formed from the energy correlation functions which outperform the widely used N-subjettiness. These observables take a highly non-trivial form, demonstrating the importance of a systematic approach to their construction.

Andrew J. Larkoski; Ian Moult; Duff Neill

2014-11-03T23:59:59.000Z

279

Advanced Imaging and Ultra-fast Material Probing With Inverse...  

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

imaging simulation software based on Geometrical Optics Phase Contrast imaging simulation software based on Fresnel-Kirchhoff integrals Comparison among Phase...

280

Top-up operation experience at APS.  

SciTech Connect (OSTI)

The Advanced Photon Source (APS) is a 7-OeV, third-generation synchrotrons radiation source. To provide more stable beam for users, in September 1998 we began commissioning a new operating mode called ''top-up.'' In this mode, the beam current does not decay but is maintained at a high level using frequent injection, while photon shutters are open and photon beams are delivered to users. The hardware, software, and safety requirements for top-up will be reported. Safety issues related to injection with open photon shutters are covered in companion papers in this conference. Recent operational experience includes testing aspects of top-up injection and delivering beam to X-ray users for a few hours with fractional current stability of 10{sup {minus}3}. We expect to run several top-up operation shifts in Spring 1999. Issues of importance are orbit and emittance transients during the injection and scheduling of injection pulses for the convenience of users.

Emery, L.

1999-03-31T23:59:59.000Z

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

Masked deposition techniques for achieving multilayer period variations required for short-wavelength (68-Å) soft-x-ray imaging optics  

Science Journals Connector (OSTI)

Practical issues in the development of multilayer coatings for reflective imaging systems operating at ? ? 68 Å are discussed. The 1% bandpass of Ru/B4C multilayers at this...

Kortright, J B; Gullikson, E M; Denham, P E

1993-01-01T23:59:59.000Z

282

OPTICAL BIOPSY: COMPLEMENTING HISTOLOGY WITH NONLINEAR OPTICAL MICROSCOPY  

E-Print Network [OSTI]

for sample processing. NLOM uses a high-powered ultrafast laser to generate nonlinear optical signals within living tissue. These signals are used to render two- and three-dimensional images. One improvement to be made on this imaging system is the capability...

Shafer, Christina

2006-08-16T23:59:59.000Z

283

Building America's Top Innovations Advance High Performance Homes |  

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

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

284

Measurements of top quark properties at the Tevatron collider  

SciTech Connect (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

285

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

286

OPTICS5  

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

287

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

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

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

288

An optical fan for light beams for high-precision optical measurements and optical switching  

E-Print Network [OSTI]

The polarization and orbital angular momentum properties of light are of great importance in optical science and technology in the fields of high precision optical measurements and high capacity and high speed optical communications. Here we show, a totally new method, based on a combination of these two properties and using the thermal dispersion and electro-optical effect of birefringent crystals, the construction of a simple and robust scheme to rotate a light beam like a fan. Using a computer-based digital image processing technique, we determine the temperature and the thermal dispersion difference of the crystal with high resolution. We also use the rotation phenomenon to realize thermo-optic and electro-optic switches. The basic operating principles for measurement and switching processes are presented in detail. The methods developed here will have wide practical applicability in various fields, including remote sensing, materials science and optical communication networks.

Zhou, Zhi-Yuan; Ding, Dong-Sheng; Jiang, Yun-Kun; Zhang, Wei; Shi, Shuai; Shi, Bao-Sen; Guo, Guang-Can

2014-01-01T23:59:59.000Z

289

An optical fan for light beams for high-precision optical measurements and optical switching  

E-Print Network [OSTI]

The polarization and orbital angular momentum properties of light are of great importance in optical science and technology in the fields of high precision optical measurements and high capacity and high speed optical communications. Here we show, a totally new method, based on a combination of these two properties and using the thermal dispersion and electro-optical effect of birefringent crystals, the construction of a simple and robust scheme to rotate a light beam like a fan. Using a computer-based digital image processing technique, we determine the temperature and the thermal dispersion difference of the crystal with high resolution. We also use the rotation phenomenon to realize thermo-optic and electro-optic switches. The basic operating principles for measurement and switching processes are presented in detail. The methods developed here will have wide practical applicability in various fields, including remote sensing, materials science and optical communication networks.

Zhi-Yuan Zhou; Yan Li; Dong-Sheng Ding; Yun-Kun Jiang; Wei Zhang; Shuai Shi; Bao-Sen Shi; Guang-Can Guo

2014-05-08T23:59:59.000Z

290

Top ECMs for Labs and Data Centers  

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

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:

291

edited1_TopQuarkMass  

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

292

Multiple Rankine topping cycles offer high efficiency  

SciTech Connect (OSTI)

The efficiency of a Rankine cycle is primarily determined by the temperatures of heat addition and heat rejection. However, no working fluid has been identified that will operate in a Rankine cycle over an extremely wide temperature range. Multiple Rankine topping cycles offer a technique for achieving high thermal efficiencies in power plants by allowing the use of several working fluids to span larger temperature ranges.

McWhirter, J.D. [Idaho State Univ., Pocatello, ID (United States)

1997-10-01T23:59:59.000Z

293

Top-mass measurements from D0  

SciTech Connect (OSTI)

We present three recent analyses (Abstracts 169, 170 and 174) of the mass of the top quark (M{sub t}) using top-antitop candidate events collected by the D0 experiment at the Fermilab Tevatron Collider: (i) a 3.6 events/fb sample of data in the lepton+jets channel analyzed to extract a precision value of M{sub t} using the 'Matrix-Element' (ME) method, wherein each event probability is calculated from the differential production cross section as a function of M{sub t} and the overall jet energy scale, with the latter constrained by the two jets from W decay into q{prime}{bar q}, (ii) a first measurement of the mass difference between top and antitop quarks as a check of CPT invariance in the quark sector, also based on the ME method in lepton+jets channels, and corresponding to a 1 event/fb data sample, and (iii) measurements of M{sub t} in dilepton final states (updated to 3.6 events/fb), based on 'matrix' weighting, 'neutrino' weighting and the ME method, which rely, respectively, on the likelihood of observing the events in data for a range of assumed M{sub t} values, distributions generated from event weights that compare calculated and reconstructed missing transverse energies, and event probabilities based on the leading-order differential cross section as a function of assumed M{sub t}. In addition, we provide a combination of recent top-mass measurements from D0.

Ferbel, T.; /Rochester U. /Maryland U.

2009-01-01T23:59:59.000Z

294

Building Technologies Office: Building America's Top Innovations Advance  

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

295

Building America Top Innovations 2013 Profile - Zero Energy-Ready...  

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

Top Innovations 2013 Profile - Zero Energy-Ready Single-Family Homes Building America Top Innovations 2013 Profile - Zero Energy-Ready Single-Family Homes Many Building America...

296

Top quark pair cross section prospects in ATLAS  

E-Print Network [OSTI]

The observation of the top quark will be an important milestone in ATLAS. This talk reviews methods that ATLAS plans to use to observe the top quark pair production process and measure its cross section.

Andrei Gaponenko; for the ATLAS Collaboration

2009-10-20T23:59:59.000Z

297

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

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

298

Terascale Optimal PDE Simulations (TOPS) Center  

SciTech Connect (OSTI)

This report covers the period from Oct. 2002 to Sep. 2004 when Old Dominion University (ODU) was the lead institution for the TOPS ISIC, until in Oct. 2004 Columbia University replaced ODU as the lead institution. The TOPS members from ODU focused on various aspects of the linear and nonlinear solver infrastructure required by the partial differential equations simulation codes, working directly with SciDAC teams from the Fusion Energy Sciences program: the Center for Extended agnetohydrodynamic Modeling (CEMM) at Princeton, and with the Center for Magnetic Reconnection Studies (CMRS) at University of New Hampshire. With CEMM we worked with their MHD simulation code, called M3D, which is semi-implicit, requiring linear solves but no onlinear solves. We contributed several improvements to their current semi-implicit code. Among these was the use of multilevel reconditioning, which provides optimal scaling. This was done through the multigrid preconditioner available in Hypre, another major solver package available in TOPS. We also provided them direct solver functionality for their linear solves since they may be required for more accurate solutions in some regimes. With the CMRS group, we implemented a fully implicit parallel magnetic reconnection simulation code, built on top of PETSc. Our first attempt was a Krylov linear iteration (GMRES because of the lack of symmetry), within each nonlinear (Newton) iteration, with optimal multilevel preconditioning, using the geometric multigrid preconditioner from PETSc. However, for reasons that we have not yet fully understood, the multigrid preconditioner fails early in the simulation, breaking the outer Newton iteration. Much better results were obtained after switching from optimal multilevel preconditioning to suboptimal one level preconditioning. Our current code, based on the additive Schwartz preconditioner from in PETSc, with ILU on subdomains, scales reasonably well, while matching the output of the original explicit code. The new Newton-Krylov-Schwarz implicitcode can take time-steps that are hundreds or thousands of times larger than the explicit code. During the three year period of this grant, we published thirteen papers and gave several invited talks at international conferences. Work on these TOPS projects continues with Columbia University as lead until Sep. 2006.

Pothen, Alex

2006-08-23T23:59:59.000Z

299

Measurement of the Top Quark Mass With 2012 CMS Data  

E-Print Network [OSTI]

The mass of the top quark was an active topic of research at CMS using 2011 data, and remains so as the 2012 data analysis campaign proceeds. Here we discuss some of the earliest results on the top mass using 2012 sqrt(s) = 8 TeV CMS data, including measurements of the top mass from semileptonic t\\bar{t} decays and the lifetime of the B-hadron, as well as a measurement of the top-antitop mass difference.

Richard Nally

2014-09-01T23:59:59.000Z

300

Review of recent top-quark LHC combinations  

E-Print Network [OSTI]

A review of recent combinations of top-quark measurements performed at the LHC, by the ATLAS and CMS collaborations, is provided. The typical uncertainty categorisations, and their assumed correlation patterns are presented, together with the results of the combinations of the top-quark pair and single top-quark production cross sections, the top-quark mass, as well as of the $W$ boson polarisation and the charge asymmetry in $t\\bar t$ events.

Cortiana, Giorgio

2014-01-01T23:59:59.000Z

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

Fast top-k simple shortest paths discovery in graphs  

Science Journals Connector (OSTI)

With the wide applications of large scale graph data such as social networks, the problem of finding the top-k shortest paths attracts increasing attention. This paper focuses on the discovery of the top-k simple shortest paths (paths without ... Keywords: graphs, shortest path, top-k

Jun Gao; Huida Qiu; Xiao Jiang; Tengjiao Wang; Dongqing Yang

2010-10-01T23:59:59.000Z

302

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

303

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

304

Full spectrum optical safeguard  

DOE Patents [OSTI]

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

305

Modeling of multiple-optical-axis pattern-integrated interference lithography systems.  

E-Print Network [OSTI]

??The image quality and collimation in a multiple-optical-axis pattern-integrated interference lithography system are evaluated for an elementary optical system composed of single-element lenses. Image quality… (more)

Sedivy, Donald E.

2014-01-01T23:59:59.000Z

306

Optical Switch  

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

seven wonders Optical Switch A key component in the laser chain, an optical switch called a plasma electrode Pockels cell (PEPC), was invented and developed at LLNL. A Pockels cell...

307

SNAP Image Gallery  

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

308

Searches for new physics in top events at the Tevatron  

SciTech Connect (OSTI)

During the past years the CDF and D0 detectors have collected large amounts of data obtaining a relatively pure sample of pair-produced top quarks and a well understood sample containing singly-produced top quarks. These samples have been used for the precise measurement of the top quark properties, and have set stringent limits on new physics in the top sample. This reports presents the latest results from the CDF and D0 collaborations on the search for new physics within the top sample using an integrated data sample of up to 3.6 fb{sup -1}.

Eusebi, Ricardo; collaboration, CDF; collaboration, D0

2009-05-01T23:59:59.000Z

309

First Results on Shear-selected Clusters from the Deep Lens Survey: Optical Imaging, Spectroscopy, and X-Ray Follow-up  

Science Journals Connector (OSTI)

We present the first sample of galaxy clusters selected on the basis of their weak gravitational lensing shear. The shear induced by a cluster is a function of its mass profile and its redshift relative to the background galaxies being sheared; in contrast to more traditional methods of selecting clusters, shear selection does not depend on the cluster's star formation history, baryon content, or dynamical state. Because mass is the property of clusters that provides constraints on cosmological parameters, the dependence on these other parameters could induce potentially important biases in traditionally selected samples. Comparison of a shear-selected sample with optically and X-ray-selected samples is therefore of great importance. Here we present the first step toward a new shear-selected sample: the selection of cluster candidates from the first 8.6 deg2 of the 20 deg2 Deep Lens Survey (DLS), and tabulation of their basic properties such as redshifts and optical and X-ray counterparts.

D. Wittman; I. P. Dell'Antonio; J. P. Hughes; V. E. Margoniner; J. A. Tyson; J. G. Cohen; D. Norman

2006-01-01T23:59:59.000Z

310

Methods For Simultaneous Optical And Electrical Measurement Of Neurovascular Coupling in Awake Rats  

Science Journals Connector (OSTI)

Development of an implantable EEG and diffuse optical imaging probe for longitudinal measurements in awake rats to investigate neurovascular coupling.

Sutin, Jason; Wu, Weicheng; Ruvinskaya, Lana; Franceschini, Maria Angela

311

E-Print Network 3.0 - anatomical optical coherence Sample Search...  

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

Laryngoscope Lippincott Williams & Wilkins Summary: Imaged With Optical Coherence Tomography by Anatomic Regions and Subsites. Anatomic Regions Locations... and Otological...

312

Tailoring graphene with metals on top  

Science Journals Connector (OSTI)

We study the effects of metallic doping on the electronic properties of graphene using density functional theory in the local density approximation in the presence of a local charging energy. The electronic properties are sensitive to whether graphene is doped with alkali or transition metals. We estimate the charge transfer from a single layer of potassium on top of graphene in terms of the local charging energy of the graphene sheet. The coating of graphene with a nonmagnetic layer of palladium, on the other hand, can lead to a magnetic instability in coated graphene due to the hybridization between the transition metal and the carbon orbitals.

B. Uchoa; C.-Y. Lin; A. H. Castro Neto

2008-01-17T23:59:59.000Z

313

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

DOE Data Explorer [Office of Scientific and Technical Information (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.

314

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

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

315

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

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

316

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

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

317

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

318

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

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

319

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

320

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

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

MicroSight Optics  

SciTech Connect (OSTI)

MicroSight is an innovative gunsight technology that allows a marksman's eye to focus on both the front gunsight and the intended target. The MicroSight improves both firearm safety and performance by imaging two objects at different focal distances. The MicroSight was developed at Idaho National Laboratory, and has been licensed by Apollo Optical Systems. You can learn more about INL's research programs at http://www.facebook.com/idahonationallaboratory.

None

2010-01-01T23:59:59.000Z

322

MicroSight Optics  

ScienceCinema (OSTI)

MicroSight is an innovative gunsight technology that allows a marksman's eye to focus on both the front gunsight and the intended target. The MicroSight improves both firearm safety and performance by imaging two objects at different focal distances. The MicroSight was developed at Idaho National Laboratory, and has been licensed by Apollo Optical Systems. You can learn more about INL's research programs at http://www.facebook.com/idahonationallaboratory.

None

2013-05-28T23:59:59.000Z

323

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

324

Environmental assessment of curly top virus control in California. [Curly Top Virus  

SciTech Connect (OSTI)

Curly top is a viral disease of sugarbeets, tomatoes, melons, peppers, beans, cucumbers, squash, pumpkins, spinach, vineseed and other commercially important crops, including ornamentals. Curly top not only infects commercial crops, but at times devastates backyard vegetable and flower gardens. The only known vector of curly top is Circulifer tenellus, commonly known as the beet leafhopper. Control of the beet leafhopper may take place at various locations throughout the San Joaquin Valley, Salinas Valley, Cuyama Valley, Antelope Valley of northern Los Angeles County, Riverside County and the Imperial Valley (See Maps in Appendix E''), including portions of Merced, Fresno, Kings. Kern, San Luis Obispo, Monterey, San Benito, Santa Barbara, Los Angeles, Riverside and Imperial Counties. The size of the control program is totally dependent on the location, size, nd distribution of the beet leafhopper population. In a year with a low population, only 80,000 acres in western Fresno, Kings, and Kern Counties may require treatment. In a drought year, the treatment required may increase to more than 200,000 acres and include some inter-coastal valleys of Monterey, San Luis Obispo and Santa Barbara Counties. Not all areas require treatment on an annual basis and at no time is the entire area subject to blanket treatment. The Curly Top Virus Control Program (CTVCP) was instrumental in supporting research which developed an antisera allowing the use of Enzyme-Linked Immunosorbent Assay to determine the presence, on a percentage basis, of curly top virus. Thus, the amount of virus found in a given area lends weight to treatment priorities.

Not Available

1991-03-15T23:59:59.000Z

325

Artificial Neural Networks-Based Diffuse Optical Tomography  

Science Journals Connector (OSTI)

A scheme is developed by applying the artificial neural networks techniques for the reconstruction of optical-property images instead of using forward and inverse procedures. The...

Pan, Min-Chun; Hong, Hsian-An; Chen, Liang-Yu; Pan, Min-Cheng

326

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

327

The planar imaging of laser induced fluorescence of fuel and hydroxyl for a wall-interacting jet in a single-cylinder, automotive-size, optically accessible diesel engine  

Science Journals Connector (OSTI)

Abstract The fuel penetration and reacting diesel jet development have been studied in a small-bore optical engine to better understand a swirl-influenced, wall-interacting diesel flame. The fuel injection was executed for long duration, creating negative ignition dwell conditions in which the start of combustion occurs before the end of injection. Planar laser-induced fluorescence imaging of hydroxyl (OH-PLIF), fuel-PLIF, and line-of-sight integrated chemiluminescence imaging were performed for various combustion stages identified by the in-cylinder pressure traces and apparent heat release rates. These include stages of vaporising fuel penetration, low-temperature reaction, and high-temperature reaction. The fuel-PLIF images show that the fuel penetration is strongly influenced by a swirl flow with the wall–jet penetration on the up-swirl side being shorter than that on the down-swirl jet. During the low-temperature reaction, cool flame chemiluminescence appears near the wall–jet head region. Interestingly, this region is where the initial turbulent ring-vortex is formed due to jet–wall interactions, suggesting that locally enhanced mixing induced the first-stage ignition. The OH-PLIF images show that the second-stage, high-temperature reaction starts to occur in the same initial head vortex region, which is largely different to the flame base found in the free jet region in heavy-duty, large-bore engines. Since the reaction occurs in the wall–jet region, the swirl flow impacts the high-temperature reaction significantly, as evidenced by more intense OH signals in the down-swirl jet. This is due to the influence of the swirl flow on the mixing process and the strain rate of the mixture, leading to earlier, faster and stronger high-temperature reaction on the down-swirl side. Upon the end of high temperature reaction, the heat release rate declines and the OH-PLIF signals slowly diminish.

Minh K. Le; Sanghoon Kook; Evatt R. Hawkes

2015-01-01T23:59:59.000Z

328

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":""}]}

329

Top 10 Water Dos and Donts  

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

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

330

[Place at top of Part I]  

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

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

331

Jet Dipolarity: Top Tagging with Color Flow  

SciTech Connect (OSTI)

A new jet observable, dipolarity, is introduced that can distinguish whether a pair of subjets arises from a color singlet source. This observable is incorporated into the HEPTopTagger and is shown to improve discrimination between top jets and QCD jets for moderate to high p{sub T}. The impressive resolution of the ATLAS and CMS detectors means that a typical QCD jet at the LHC deposits energy in {Omicron}(10-100) calorimeter cells. Such fine-grained calorimetry allows for jets to be studied in much greater detail than previously, with sophisticated versions of current techniques making it possible to measure more than just the bulk properties of jets (e.g. event jet multiplicities or jet masses). One goal of the LHC is to employ these techniques to extend the amount of information available from each jet, allowing for a broader probe of the properties of QCD. The past several years have seen significant progress in developing such jet substructure techniques. A number of general purpose tools have been developed, including: (i) top-tagging algorithms designed for use at both lower and higher p{sub T} as well as (ii) jet grooming techniques such as filtering, pruning, and trimming, which are designed to improve jet mass resolution. Jet substructure techniques have also been studied in the context of specific particle searches, where they have been shown to substantially extend the reach of traditional search techniques in a wide variety of scenarios, including for example boosted Higgses, neutral spin-one resonances, searches for supersymmetry, and many others. Despite these many successes, however, there is every reason to expect that there remains room for refinement of jet substructure techniques.

Hook, Anson; Jankowiak, Martin; /SLAC /Stanford U., Phys. Dept.; Wacker, Jay G.; /SLAC

2011-08-12T23:59:59.000Z

332

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

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

333

LANL announces top 10 science stories of 2009  

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

334

Top-quark mass measurements: Alternative techniques (LHC + Tevatron)  

E-Print Network [OSTI]

Measurements of the top-quark mass employing alternative techniques are presented, performed by the D0 and CDF collaborations at the Tevatron as well as the ATLAS and CMS experiments at the LHC. The alternative methods presented include measurements using the lifetime of $B$-hadrons, the transverse momentum of charged leptons and the endpoints of kinematic distributions in top quark anti-quark pair ($t\\bar{t}$) final states. The extraction of the top-quark pole mass from the $t\\bar{t}$ production cross-section and the normalized differential $t\\bar{t}$ + 1-jet cross-section are discussed as well as the top-quark mass extraction using fixed-order QCD predictions at detector level. Finally, a measurement of the top-quark mass using events enhanced in single top t-channel production is presented.

Adomeit, Stefanie

2014-01-01T23:59:59.000Z

335

OPTICS 5  

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

336

Novel Nonlinear Optics and Quantum Optics Approaches for Ultrasound-Modulated Optical Tomography in Soft Biological Tissue  

E-Print Network [OSTI]

Optical imaging of soft biological tissue is highly desirable since it is nonionizing and provides sensitive contrast information which enables the detection of physiological functions and abnormalities, including potentially early cancer detection...

Zhang, Huiliang

2012-02-14T23:59:59.000Z

337

Optical Magnetism  

Science Journals Connector (OSTI)

Magnetic dipole radiation one fourth as intense as electric dipole radiation, as well as a novel nonlinear magneto-optical effect are reported in dielectric media.

Oliveira, Samuel L; Rand, Stephen C

338

EM Recovery Act Top Line Messages | Department of Energy  

Energy Savers [EERE]

Recovery Act Top Line Messages - April, 2013 More Documents & Publications Workers at Hanford Site Achieve Recovery Act Legacy Cleanup Goals Ahead of Schedule Audit Report:...

339

Next Generation Advanced Framing- Building America Top Innovation  

Broader source: Energy.gov [DOE]

Building America researchers garnered a Top Innovation award for research into simple, cost-effective ways to implement advanced framing techniques.

340

Top 5 Maps and Interactive Graphics of 2014  

Broader source: Energy.gov [DOE]

Here are our top five maps and interactive graphics from 2014. Explore space-based solar power, how much energy you consume, energy production and more.

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

Buried and Encapsulated Ducts - Building America Top Innovation...  

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

and Encapsulated Ducts - Building America Top Innovation photo of worker blowing insulation on ducts in an attic. Ductwork installed in unconditioned attics can significantly...

342

High-Efficiency Window Air Conditioners - Building America Top...  

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

Window Air Conditioners - Building America Top Innovation This photo shows a window air conditioning unit in place in a window frame. Window air conditioners are inexpensive,...

343

Top 10 Water Savings Do and Don't  

Broader source: Energy.gov [DOE]

Presentation—given at the Spring 2009 Federal Utility Partnership Working Group (FUPWG) meeting—covers the top ways to conserve water.

344

Building America Solution Center - Building America Top Innovation...  

Energy Savers [EERE]

America Top Innovation SCimagemale.jpg The Building America Solution Center is a Web-based tool connecting users to fast, free, and expert building science and energy...

345

Valuing Green in the Appraisal Process- Building America Top Innovation  

Broader source: Energy.gov [DOE]

This 2014 Top Innovation describes Building America work to pave the way for a Green and Energy Effiiciency Addendum for real estate appraisers.

346

Ex Parte Memorandum on Set Top Boxes and Network Equipment |...  

Energy Savers [EERE]

provides a summary of a May 1, 2012, meeting with DOE officials concerning potential test procedures and energy conservation standards for set-top boxes and network equipment....

347

Dynamical electroweak symmetry breaking and the top quark  

SciTech Connect (OSTI)

In this talk, I discuss theories of dynamical electroweak symmetry breaking, with emphasis on the implications of a heavy top quark on the weak interaction {rho} parameter.

Chivukula, R.S. [Boston Univ., MA (United States)

1997-01-01T23:59:59.000Z

348

NSTec tops more than $2 million in contributions to education...  

National Nuclear Security Administration (NNSA)

NSTec tops more than 2 million in contributions to education outreach | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the...

349

Advanced Technologies and Practices- Building America Top Innovations  

Broader source: Energy.gov [DOE]

Top Innovations in this category encompass research in specific technologies and construction practices that improve the building envelope, HVAC components, ventilation, and health and safety issues.

350

Top quark charge asymmetry measurements with ATLAS detector  

E-Print Network [OSTI]

The top quark charge asymmetry measurements performed with ATLAS detector at a centre-of-mass energy of 7 TeV are presented.

U. De Sanctis; for the ATLAS Collaboration

2014-11-13T23:59:59.000Z

351

Searches for new physics in top decays at the LHC  

E-Print Network [OSTI]

The search for new physics in top quark decays at the LHC is reviewed in this paper. Results from ATLAS and CMS experiments on top quark decays within the Standard Model are presented together with the measurements of the W boson polarizations and the study of the structure of the Wtb vertex. As a natural step forward, the experimental status on measurements sensitive to top quark couplings to gauge bosons (\\gamma, Z, W and H) is reviewed as well as possible top quark decays Beyond the Standard Model (MSSM and FCNC).

A. Onofre

2012-12-31T23:59:59.000Z

352

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

Energy Savers [EERE]

Second Round of "America's Next Top Energy Innovator" on One Year Anniversary of the White House Startup America Initiative Secretary Chu Announces Second Round of "America's...

353

Northwest public utilities, BPA top five-year energy savings...  

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

public-utilities-BPA-top-five-year-energy-savings-target Sign In About | Careers | Contact | Investors | bpa.gov Search News & Us Expand News & Us Projects & Initiatives Expand...

354

Top quark charge asymmetry measurements with ATLAS detector  

E-Print Network [OSTI]

The top quark charge asymmetry measurements performed with ATLAS detector at a centre-of-mass energy of 7 TeV are presented.

De Sanctis, Umberto; The ATLAS collaboration

2014-01-01T23:59:59.000Z

355

TOP AND HIGGS PHYSICS AT THE HADRON COLLIDERS  

SciTech Connect (OSTI)

This review summarizes the recent results for top quark and Higgs boson measurements from experiments at Tevatron, a proton–antiproton collider at a center-of-mass energy of ? s =1 . 96 TeV, and the Large Hadron Collider, a proton–proton collider at a center- of-mass energy of ? s = 7 TeV. These results include the discovery of a Higgs-like boson and measurement of its various properties, and measurements in the top quark sector, e.g. top quark mass, spin, charge asymmetry and production of single top quark.

Jabeen, Shabnam

2013-10-20T23:59:59.000Z

356

Effective Guidance and Tools - Building America Top Innovations...  

Energy Savers [EERE]

Quality Management System Guidelines 1995-2012 Top Innovations EEBA Builder's Guides EEBA Water Management Guide Attic Air Sealing Guidelines High-Performance Home Metrics These...

357

Valuing Green in the Appraisal Process - Building America Top...  

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

America Top Innovation Real estate appraisers have historically faced challenges with green and energy efficient homes, both in identifying comparables and in supporting...

358

Search for Single Top Quark Production at HERA  

E-Print Network [OSTI]

A search for single top quark production is performed in the full ep data sample collected by the H1 experiment at HERA, corresponding to an integrated luminosity of 474 pb^-1. Decays of top quarks into a b quark and a W boson with subsequent leptonic or hadronic decay of the W are investigated. A multivariate analysis is performed to discriminate top quark production from Standard Model background processes. An upper limit on the top quark production cross section via flavour changing neutral current processes sigma (ep -> etX) < 0.25 pb is established at 95% CL. Limits on the anomalous coupling kappa_{tu gamma} are derived.

Aaron, F D; Alexa, C; Alimujiang, K; Andreev, V; Antunovic, B; Asmone, A; Backovic, S; Baghdasaryan, A; Barrelet, E; Bartel, W; Begzsuren, K; Belousov, A; Bizot, J C; Boudry, V; Bozovic-Jelisavcic, I; Bracinik, J; Brandt, G; Brinkmann, M; Brisson, V; Bruncko, D; Bunyatyan, A; Buschhorn, G; Bystritskaya, L; Campbell, A J; Cantun Avila, K B; Cassol-Brunner, F; Cerny, K; Cerny, V; Chekelian, V; Cholewa, A; Contreras, J G; Coughlan, J A; Cozzika, G; Cvach, J; Dainton, J B; Daum, K; Deak, M; de Boer, Y; Delcourt, B; Del Degan, M; Delvax, J; De Roeck, A; De Wolf, E A; Diaconu, C; Dodonov, V; Dossanov, A; Dubak, A; Eckerlin, G; Efremenko, V; Egli, S; Eliseev, A; Elsen, E; Falkiewicz, A; Favart, L; Fedotov, A; Felst, R; Feltesse, J; Ferencei, J; Fischer, D J; Fleischer, M; Fomenko, A; Gabathuler, E; Gayler, J; Ghazaryan, S; Glazov, A; Glushkov, I; Goerlich, L; Gogitidze, N; Gouzevitch, M; Grab, C; Greenshaw, T; Grell, B R; Grindhammer, G; Habib, S; Haidt, D; Helebrant, C; Henderson, R C W; Hennekemper, E; Henschel, H; Herbst, M; Herrera, G; Hildebrandt, M; Hiller, K H; Hoffmann, D; Horisberger, R; Hreus, T; Jacquet, M; Janssen, M E; Janssen, X; Jonsson, L; Jung, Andreas Werner; Jung, H; Kapichine, M; Katzy, J; Kenyon, I R; Kiesling, C; Klein, M; Kleinwort, C; Kluge, T; Knutsson, A; Kogler, R; Kostka, P; Kraemer, M; Krastev, K; Kretzschmar, J; Kropivnitskaya, A; Kruger, K; Kutak, K; Landon, M P J; Lange, W; Lastovicka-Medin, G; Laycock, P; Lebedev, A; Leibenguth, G; Lendermann, V; Levonian, S; Li, G; Lipka, K; Liptaj, A; List, B; List, J; Loktionova, N; Lopez-Fernandez, R; Lubimov, V; Lytkin, L; Makankine, A; Malinovski, E; Marage, P; Marti, Ll; Martyn, H U.; Maxfield, S J; Mehta, A; Meyer, A B; Meyer, H; Meyer, H; Meyer, J; Michels, V; Mikocki, S; Milcewicz-Mika, I; Moreau, F; Morozov, A; Morris, J V; Mozer, Matthias Ulrich; Mudrinic, M; Muller, K; Murin, P; Naumann, Th; Newman, P R; Niebuhr, C; Nikiforov, A; Nowak, G; Nowak, K; Nozicka, M; Olivier, B; Olsson, J E; Osman, S; Ozerov, D; Palichik, V; Panagoulias, I; Pandurovic, M; Papadopoulou, Th; Pascaud, C; Patel, G D; Pejchal, O; Perez, E; Petrukhin, A; Picuric, I; Piec, S; Pitzl, D; Placakyte, R; Pokorny, B; Polifka, R; Povh, B; Preda, T; Radescu, V; Rahmat, A J; Raicevic, N; Raspiareza, A; Ravdandorj, T; Reimer, P; Rizvi, E; Robmann, P; Roland, B; Roosen, R; Rostovtsev, A; Rotaru, M; Ruiz Tabasco, J E; Rurikova, Z; Rusakov, S; Salek, D; Sankey, D P C; Sauter, M; Sauvan, E; Schmitt, S; Schmitz, C; Schoeffel, L; Schoning, A; Schultz-Coulon, H C; Sefkow, F; Shaw-West, R N; Shtarkov, L N; Shushkevich, S; Sloan, T; Smiljanic, Ivan; Soloviev, Y; Sopicki, P; South, D; Spaskov, V; Specka, Arnd E; Staykova, Z; Steder, M; Stella, B; Stoicea, G; Straumann, U.; Sunar, D; Sykora, T; Tchoulakov, V; Thompson, G; Thompson, P D; Toll, T; Tomasz, F; Tran, T H; Traynor, D; Trinh, T N; Truol, P; Tsakov, I; Tseepeldorj, B; Turnau, J; Urban, K; Valkarova, A; Vallee, C; Van Mechelen, P; Vargas Trevino, A; Vazdik, Y; Vinokurova, S; Volchinski, V; von den Driesch, M; Wegener, D; Wissing, Ch; Wunsch, E; Zacek, J; Zalesak, J; Zhang, Z; Zhokin, A; Zimmermann, T; Zohrabyan, H; Zomer, F; Zus, R; 10.1016/j.physletb.2009.06.057

2009-01-01T23:59:59.000Z

359

Science, Optics and You: Light and Lenses  

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

with Lenses, students will be encouraged to use each of the lenses supplied in the Science, Optics and You package. Students will look at different images, use flashlights to...

360

Optical Expanders with Applications in Optical Computing  

E-Print Network [OSTI]

Optical Expanders with Applications in Optical Computing John H. Reif Akitoshi Yoshida July 20, 1999 Abstract We describe and investigate an optical system which we call an optical expander. An optical expander elec- trooptically expands an optical boolean pattern encoded in d bits into an optical

Reif, John H.

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

Cellular resolution ex vivo imaging of gastrointestinal tissues with coherence microscopy  

E-Print Network [OSTI]

Optical coherence microscopy (OCM) combines confocal microscopy and optical coherence tomography (OCT) to improve imaging depth and contrast, enabling cellular imaging in human tissues. We aim to investigate OCM for ex ...

Fujimoto, James G.

362

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

363

Optical Glass  

Science Journals Connector (OSTI)

... space of time. In the forefront of such vital industries is the manufacture of optical glass. However great the other resources in men and material may be, it would be ... be, it would be quite impossible to wage successful warfare without adequate supplies of optical glass ior binocular field- ...

1919-03-27T23:59:59.000Z

364

Image Registration Using Implicit Similarity and Pixel Migration A. Averbuch1  

E-Print Network [OSTI]

of remote-sensing 1 #12;(Sar, Flir, IR and optical sensors) [3, 4] and medical image registration (CT, MRI

Averbuch, Amir

365

Reflective ghost imaging through turbulence  

SciTech Connect (OSTI)

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

366

Satellite-based overshooting top detection methods and an analysis of correlated weather conditions  

Science Journals Connector (OSTI)

The paper addresses two topics: the possibilities of satellite-based automatic detection of overshooting convective cloud tops and the connection between the overshootings and the occurrence of severe weather on the ground. Because the use of visible images is restricted to daytime, four detection methods based on the Meteosat Second Generation SEVIRI 10.8 ?m infra-red window channel and the absorption channels of water vapor (6.2 ?m), ozone (9.7 ?m) and carbon dioxide (13.4 ?m) in the form of brightness temperature differences were used. The theoretical background of all four methods is explained, and the detection results are compared with daytime high?resolution visible (HRV) satellite images to validate each method. Of the four tested methods, the best performance is found for the combination of brightness temperature differences 6.2–10.8 and 9.7–10.8 ?m, which are correlated to overshootings in HRV images in 80% of the cases. The second part of the research is focused on determining whether the appearance of the overshooting top, a manifestation of a very strong updraft in the cloud, can be connected to an abrupt change of certain weather elements on the ground. For all overshooting tops found by the above-mentioned combined method, automatic station data within the range of 0.1° and available hail observations within 0.2° were analyzed. The results show that the overshootings are connected to precipitation in 80% and to wind gusts in 70% of the cases; in contrast, a slightly lower correlation was found for temperature and humidity changes. Hail is observed in the vicinity of the overshooting in 38% of the cases.

Petra Mikuš; Nataša Strelec Mahovi?

2013-01-01T23:59:59.000Z

367

Center for X-Ray Optics, 1992  

SciTech Connect (OSTI)

This report discusses the following topics: Center for X-Ray Optics; Soft X-Ray Imaging wit Zone Plate Lenses; Biological X-Ray microscopy; Extreme Ultraviolet Lithography for Nanoelectronic Pattern Transfer; Multilayer Reflective Optics; EUV/Soft X-ray Reflectometer; Photoemission Microscopy with Reflective Optics; Spectroscopy with Soft X-Rays; Hard X-Ray Microprobe; Coronary Angiography; and Atomic Scattering Factors.

Not Available

1993-08-01T23:59:59.000Z

368

Top 10 Algorithms in Data Mining Xindong Wu ( )  

E-Print Network [OSTI]

Learning Theory. Springer-Verlag New York, Inc. ­ #6. EM: McLachlan, G. and Peel, D. (2000). Finite Mixture of Vermont, USA; #12;2 Top 10 Algorithms in Data Mining: Xindong Wu and Vipin Kumar "Top 10 Algorithms.5: Quinlan, J. R. 1993. C4.5: Programs for Machine Learning. Morgan Kaufmann Publishers Inc. ­ #2. CART: L

Wu, Xindong

369

HumanTop: a multi-object tracking tabletop  

Science Journals Connector (OSTI)

In this paper, a computer vision based interactive multi-touch tabletop system called HumanTop is introduced. HumanTop implements a stereo camera vision subsystem which allows ... Keywords: Camera-projector system, Finger detection, Markerless tracking, Multitouch, Tabletop, Technology enhanced learning

Emilio Soto Candela, Mario Ortega Pérez, Clemente Marín Romero, David C. López, Gustavo Salvador Herranz, Manuel Contero, Mariano Alcañiz Raya

2014-06-01T23:59:59.000Z

370

Compositions of Extended Top-down Tree Transducers  

E-Print Network [OSTI]

initil stte q suh tht q@tA n e rewritten to uF st is shown in PH tht synhronized tree sustitution grmmrsCompositions of Extended Top-down Tree Transducers Andreas Maletti£;1 International Computer of transformations computed by linear extended top-down tree trans- ducers with regular look-ahead is not closed

Reyle, Uwe

371

Search for baryon number violation in top-quark decays  

E-Print Network [OSTI]

A search for baryon number violation (BNV) in top-quark decays is performed using pp collisions produced by the LHC at [sqrt s]=8 TeV. The top-quark decay considered in this search results in one light lepton (muon or ...

CMS Collaboration

372

Virtual Optical Comparator  

SciTech Connect (OSTI)

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

373

Fiber optic coupled optical sensor  

DOE Patents [OSTI]

A displacement sensor includes a first optical fiber for radiating light to a target, and a second optical fiber for receiving light from the target. The end of the first fiber is adjacent and not axially aligned with the second fiber end. A lens focuses light from the first fiber onto the target and light from the target onto the second fiber.

Fleming, Kevin J. (Albuquerque, NM)

2001-01-01T23:59:59.000Z

374

Soviet image pattern recognition research  

SciTech Connect (OSTI)

This report is an assessment of the published Soviet image pattern recognition (IPR) research and was written by a panel of six US academic experts in that research field. Image pattern recognition is a set of technological research topics involving automatic or interactive computer processing of pictorial information, utilizing optical, electronic, and computer technologies. This report focuses on IPR system configuration (optical, hybrid, digital), and current research. The topical chapter headings are Image Processing Hardware and Software Preprocessing, Statistical Pattern Recognition, Computer Vision, and Optical Techniques and Systems. Soviet research in all areas of IPR is strong in theory, but limited by poor availability of equipment for generating and handling digital images, and digital computer hardware and software. Nevertheless, some Soviet IPR achievements compare favorably with those of the West. There is strong Soviet research in statistical pattern recognition, where fundamental relationships related to the factors determining error rates in classification of images are being developed. There has been good Soviet work in enhancement and restoration of images (visible and radar) of the surface of Venus. There is a strong Soviet development program in optics and optical processing related to IPR. Nevertheless, the state of Soviet research in computer vision is ten to fifteen years behind the West, because of the lack of adequate hardware and software. The Soviet scientists in the area appear competent and knowledgeable of Western work, so that any improvement in their research output would be derived from access to more capable equipment. 402 refs., 4 figs., 4 tabs.

McKenney, B.L.; McGrain, M. (eds.) (Science Applications International Corp., McLean, VA (USA). Foreign Applied Sciences Assessment Center); Klinger, A. (California Univ., Los Angeles, CA (USA). Dept. of Computer Science); Aggarwal, J.K. (Texas Univ., Austin, TX (USA)); George, N.J. (Rochester Univ., NY (USA). Inst. of Optics); Haralick, R.M. (Washington Univ., Seattle, WA (USA). Dept. of Electric

1989-12-01T23:59:59.000Z

375

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

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

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

376

Top-secret super-secure vault declassified  

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

377

WIPP Receives Top Safety Award | Department of Energy  

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

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

378

WIPP Receives Top Safety Award | Department of Energy  

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

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

379

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

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

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

380

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

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

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.

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

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

382

America Chooses the Next Top Energy Innovator | Department of Energy  

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

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

383

Nonlinear optics  

E-Print Network [OSTI]

Nicolaas Bloembergen, recipient of the Nobel Prize for Physics (1981), wrote Nonlinear Optics in 1964, when the field of nonlinear optics was only three years old. The available literature has since grown by at least three orders of magnitude.The vitality of Nonlinear Optics is evident from the still-growing number of scientists and engineers engaged in the study of new nonlinear phenomena and in the development of new nonlinear devices in the field of opto-electronics. This monograph should be helpful in providing a historical introduction and a general background of basic ideas both for expe

Bloembergen, Nicolaas

1996-01-01T23:59:59.000Z

384

High throughput optical scanner  

DOE Patents [OSTI]

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

385

Optical Expanders with Applications in Optical Computing  

E-Print Network [OSTI]

Optical Expanders with Applications in Optical Computing John H. Reif \\Lambda Akitoshi Yoshida \\Lambda July 20, 1999 Abstract We describe and investigate an optical system which we call an optical expander. An optical expander elec­ trooptically expands an optical boolean pattern encoded in d bits

Reif, John H.

386

On simulating 3D fluorescent microscope images  

Science Journals Connector (OSTI)

In recent years many various biomedical image segmentation methods have appeared. Though typically presented to be successful the majority of them was not properly tested against ground truth images. The obvious way of testing the quality of new segmentation ... Keywords: convolution, fluorescent optical microscope, procedural texture, simulator, synthetic image

David Svoboda; Marek Kašík; Martin Maška; Jan Hubeny; Stanislav Stejskal; Michal Zimmermann

2007-08-01T23:59:59.000Z

387

LSST Camera Optics  

SciTech Connect (OSTI)

The Large Synoptic Survey Telescope (LSST) is a unique, three-mirror, modified Paul-Baker design with an 8.4m primary, a 3.4m secondary, and a 5.0m tertiary feeding a camera system that includes corrector optics to produce a 3.5 degree field of view with excellent image quality (<0.3 arcsecond 80% encircled diffracted energy) over the entire field from blue to near infra-red wavelengths. We describe the design of the LSST camera optics, consisting of three refractive lenses with diameters of 1.6m, 1.0m and 0.7m, along with a set of interchangeable, broad-band, interference filters with diameters of 0.75m. We also describe current plans for fabricating, coating, mounting and testing these lenses and filters.

Olivier, S S; Seppala, L; Gilmore, K; Hale, L; Whistler, W

2006-06-05T23:59:59.000Z

388

ON AN ADAPTIVE CONTROL ALGORITHM FOR ADAPTIVE OPTICS APPLICATIONS  

E-Print Network [OSTI]

ON AN ADAPTIVE CONTROL ALGORITHM FOR ADAPTIVE OPTICS APPLICATIONS MOODY T. CHU \\Lambda Abstract. The wavefront aberrations induced by atmospheric turbulence can severely degrade the performance of an optical imaging system. Adaptive optics refers to the process of removing unwanted wave front distortions

389

ON AN ADAPTIVE CONTROL ALGORITHM FOR ADAPTIVE OPTICS APPLICATIONS  

E-Print Network [OSTI]

ON AN ADAPTIVE CONTROL ALGORITHM FOR ADAPTIVE OPTICS APPLICATIONS MOODY T. CHU Abstract. The wavefront aberrations induced by atmospheric turbulence can severely degrade the performance of an optical imaging system. Adaptive optics refers to the process of removing unwanted wave front distortions

390

Simultaneous measurement of group refractive index and thickness of optical samples using optical coherence tomography  

SciTech Connect (OSTI)

Optical coherence tomography (OCT), based on a Michelson interferometer and utilizing low coherence light as the optical source, is a novel technique for the noninvasive imaging of optical scattering media. A simple OCT scheme based on a 3x3 fiber coupler is presented for the simultaneous measurement of the refractive index and thickness of optical samples. The proposed system enables the refractive index and thickness to be determined without any prior knowledge of the sample parameters and is characterized by a simple and compact configuration, a straightforward measurement procedure, and a low cost. The feasibility of the proposed approach is demonstrated experimentally using BK7 and B270 optical glass samples.

Cheng, Hsu-Chih; Liu, Yi-Cheng

2010-02-10T23:59:59.000Z

391

Sequoia retains top ranking on Graph 500 for third year running  

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

392

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

393

Search for New Physics in Rare Top Decays  

E-Print Network [OSTI]

Top physics provides a fertile ground for new-physics searches. At present, most top observables appear to be in good agreement with the respective Standard Model predictions. However, in the case of decay modes that are suppressed in the Standard Model, new-physics contributions of comparable magnitude may exist and yet go unnoticed because their impact on the total decay width is small. Hence it is interesting to probe rare top decays. This analysis focuses on the decay $t \\to b \\bar b c$. Useful observables are identified and prospects for measuring new-physics parameters are examined.

Pratishruti Saha

2014-11-27T23:59:59.000Z

394

Observation of $t$-channel electroweak top quark production  

SciTech Connect (OSTI)

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

395

Optical Encryption with Jigsaw Transform using Matlab  

E-Print Network [OSTI]

This article will describe an optical encryption technical of images which it is proposed in an analogical and digital way. The development of the technical to a digital level, it is made to implementing algorithms (routines) in MATLAB. We will propose a functional diagram to the described analogical development from which designated the optical systems associated with each functional block. Level of security that the jigsaw algorithms provide applied on an image, which has been decomposed into its bit-planes, is significantly better if they are applied on an image that has not been previously decomposed.

Giraldo, Leidy Marcela

2012-01-01T23:59:59.000Z

396

Optical coherence tomography guided dental drill  

DOE Patents [OSTI]

A dental drill that has one or multiple single mode fibers that can be used to image in the vicinity of the drill tip. It is valuable to image below the surface being drilled to minimize damage to vital or normal tissue. Identifying the boundary between decayed and normal enamel (or dentine) would reduce the removal of viable tissue, and identifying the nerve before getting too close with the drill could prevent nerve damage. By surrounding a drill with several optical fibers that can be used by an optical coherence domain reflectometry (OCDR) to image several millimeters ahead of the ablation surface will lead to a new and improved dental treatment device.

DaSilva, Luiz B. (Danville, CA); Colston, Jr., Bill W. (Livermore, CA); James, Dale L. (Tracy, CA)

2002-01-01T23:59:59.000Z

397

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

398

First-order design of off-axis reflective ophthalmic adaptive optics systems using afocal  

E-Print Network [OSTI]

First-order design of off-axis reflective ophthalmic adaptive optics systems using afocal for designing laser cavities, spectrographs and adaptive optics retinal imaging systems. The use, range respectively. This is discussed using examples from adaptive optics retinal imaging systems. The performance

399

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

400

Solar Energetic Particle Spectrum on 13 December 2006 Determined by IceTop  

SciTech Connect (OSTI)

The IceTop air shower array now under construction at the South Pole as the surface component of the IceCube neutrino telescope (Achterberg et al. 2006) detected an unusual near-solar-minimum Ground Level Enhancement (GLE) after a solar flare on 13 December 2006. Beginning at 0220 UT, the 4B class flare occurred at solar coordinates S06 W24, accompanied by strong (X3.4) X-ray emission and type II and IV radio bursts. The LASCO coronagraph on the SOHO spacecraft observed a halo CME launch from the Sun at {approx} 0225 UT with speed estimated to be {approx} 1770 km/s. We have begun (Bieber et al. 2007) a comprehensive analysis of the propagation of solar energetic particles in this event. However the focus of this Letter is the new and unique ability of IceTop to derive the energy spectrum of these particles in the multi-GeV regime from a single detector with a well defined viewing direction. When completed, IceTop will have approximately 500 square meters of ice Cherenkov collecting area arranged in an array of 80 stations on a 125 m triangular grid to detect air showers from one PeV to one EeV. Each station consists of two, two meter diameter tanks filled with ice to a depth of 90 cm. Tanks are instrumented with two Digital Optical Modules (DOM) operated at different gain settings to provide appropriate dynamic range to cover both large and small air showers. Each DOM contains a 10 inch photomultiplier and an advanced readout system capable of digitizing the full waveform. For historical reasons, the two discriminator counting rates recorded in each DOM are termed SPE (Single Photo Electron), and MPE (Multi Photo Electron). In the present analysis the SPE threshold corresponds approximately to 20 photoelectrons (PE), and the MPE threshold to 100 PE. Due to the high altitude (2835m) and the nearly zero geomagnetic cutoff at the South Pole, secondary particle spectra at the detector retain a significant amount of information on the spectra of the primary particles. In a thin, ionization detector these secondary particles either would not interact, or would produce virtually indistinguishable signals. This is not the case in the thick Ice-Top detector, where a traversing muon produces 130 PE and the typical electron only 15 PE. Signal amplitude therefore carries information about the composition and spectra of the incident particles, albeit integrated over broad regions of the spectrum. In particular, differences in counting rates of discriminators at different thresholds allow us to infer the particle spectrum incident at the top of the atmosphere.

IceCube Collaboration; Klein, Spencer

2008-10-11T23:59:59.000Z

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

NNSA Production Office tops Feds Feed Families campaign goal | National  

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

402

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

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

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

403

Military students access top R&D  

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

404

PPPL earns top EPA award | Princeton Plasma Physics Lab  

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

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

405

Ducts in Conditioned Space - Building America Top Innovation...  

Energy Savers [EERE]

moving ductwork into conditioned space in the hot-dry climate zone saved 8% to 15% on air-conditioning costs for homeowners. For this Top Innovation profile, Building America...

406

High-Efficiency Window Air Conditioners- Building America Top Innovation  

Broader source: Energy.gov [DOE]

This Top Innovation profile highlights research into making window air conditioners much more energy efficient, and recommendations for homeowners about how to improve the operating efficiency of their units.

407

HVAC Cabinet Air Leakage Test Method- Building America Top Innovation  

Broader source: Energy.gov [DOE]

This 2014 Top Innovation describes Building America research that resulted in the development of an ASHRAE standard and standardized testing method for testing the air leakage of HVAC air handlers and furnace cabinets.

408

New Physics in Top Events at the LHC  

Science Journals Connector (OSTI)

It is widely believed now that new physics beyond the Standard Model (SM) will appear at the electroweak scale. In almost all models of electroweak symmetry breaking, top either couples strongly to new particl...

Marina Cobal-Grassmann

2007-01-01T23:59:59.000Z

409

CDF/TOP/DOC/6548 Version 1.1  

E-Print Network [OSTI]

, muons and the amount of missing transverse energy. In order to pick up certain calorimeter and tracking T electron and muon data sam- ples which will be used for Top group analysis results for Summer 2003-cdf.fnal.gov/internal/physics/top/topdata/newtopdata.html 1 Introduction The Level 3 trigger data-sets for high p T electrons and muons have identi#12;ers

410

Testing ETC Generation of the Top Quark Mass  

E-Print Network [OSTI]

We consider constraints on models in which a top quark mass is generated through unenhanced extended technicolor interactions. The deviation in the $\\rho$ parameter from unity and $B$--$\\overline{B}$ mixing could be large, but given the uncertainties in strong dynamics and variations in the parameters of models, no conclusive statement can be given. We conclude that the low technicolor scale which is required to generate the top quark mass is not ruled out.

L. Randall

1992-10-13T23:59:59.000Z

411

Gluon Radiation and Energy Losses in Top Quark Production  

E-Print Network [OSTI]

The emission of energetic gluons in $\\tt$ production in $\\ee$ annihilation can have important experimental consequences, in particular on top quark mass measurements. We present compact, analytical expressions for the gluon energy distribution and its average value at first order in QCD perturbation theory. Our results are valid for arbitrary masses, collision energies and production currents. We pay particular attention to top quark production near threshold, and show that in certain cases the soft gluon approximation is insufficient to describe the radiation spectrum.

Yu. L. Dokshitzer; V. A. Khoze; W. J. Stirling

1994-05-06T23:59:59.000Z

412

Overview of Image Reconstruction  

SciTech Connect (OSTI)

Image reconstruction (or computerized tomography, etc.) is any process whereby a function, f, on Rn is estimated from empirical data pertaining to its integrals, ∫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

413

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

414

Observation of the top quark with the DO detector  

SciTech Connect (OSTI)

The DO Collaboration reports on the observation of the top quark in p{bar p} collisions at {radical}s = 1.8 TeV at the Fermilab Tevatron. We measure the top quark mass to be 199{sub -21}{sup -19}(stat){sub -21}{sup +14}(syst.) GeV/c{sup 2} and its production cross section to be 6.4 {+-}2.2 pb. Our result is based on approximately 50 pb{sup -1} of data. We observe 17 events with an expected background of 3.8 {+-} 0.6 events. The probability of an upward fluctuation of the background to produce the observed signal is 2 x 10{sup -6} (equivalent to 4.6 standard deviations). The kinematic properties of the events are consistent with top quark decay, and the distribution of events across the seven decay channels is consistent with the Standard Model top quark branching fractions. We describe the analysis that led to the observation of the top quark as well as the properties of the top quark events.

Hadley, N.J. [Univ. of Maryland, College Park, MD (United States)

1997-01-01T23:59:59.000Z

415

Device for imaging scenes with very large ranges of intensity  

DOE Patents [OSTI]

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

416

Non-imaging optics in photovoltaic concentration  

Science Journals Connector (OSTI)

It is suggested that solar energy could become a more economical power source through the use of techniques which concentrate the maximum amount of light onto photovoltaic cells. Limits of concentration are discussed and the design of practical 3D concentrations is considered

A. Luque

1986-01-01T23:59:59.000Z

417

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

418

Fast Image Drift Compensation in Scanning Electron Microscope Using Image Registration  

E-Print Network [OSTI]

Fast Image Drift Compensation in Scanning Electron Microscope Using Image Registration Naresh Marturi, Sounkalo Demb´el´e and Nadine Piat Abstract-- Scanning Electron Microscope (SEM) image ac analysis and characterization of materials to recover their structural, mechanical, electrical and optical

Boyer, Edmond

419

Estimating of pulsed electric fields using optical measurements.  

SciTech Connect (OSTI)

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

420

Transitions of cloud-topped marine boundary layers characterized by AIRS, MODIS, and a large eddy simulation model  

SciTech Connect (OSTI)

Cloud top entrainment instability (CTEI) is a hypothesized positive feedback between entrainment mixing and evaporative cooling near the cloud top. Previous theoretical and numerical modeling studies have shown that the persistence or breakup of marine boundary layer (MBL) clouds may be sensitive to the CTEI parameter. Collocated thermodynamic profile and cloud observations obtained from the Atmospheric Infrared Sounder (AIRS) and Moderate Resolution Imaging Spectroradiometer (MODIS) instruments are used to quantify the relationship between the CTEI parameter and the cloud-topped MBL transition from stratocumulus to trade cumulus in the northeastern Pacific Ocean. Results derived from AIRS and MODIS are compared with numerical results from the UCLA large eddy simulation (LES) model for both well-mixed and decoupled MBLs. The satellite and model results both demonstrate a clear correlation between the CTEI parameter and MBL cloud fraction. Despite fundamental differences between LES steady state results and the instantaneous snapshot type of observations from satellites, significant correlations for both the instantaneous pixel-scale observations and the long-term averaged spatial patterns between the CTEI parameter and MBL cloud fraction are found from the satellite observations and are consistent with LES results. This suggests the potential of using AIRS and MODIS to quantify global and temporal characteristics of the cloud-topped MBL transition.

Yue, Qing; Kahn, Brian; Xiao, Heng; Schreier, Mathias; Fetzer, E. J.; Teixeira, J.; Suselj, Kay

2013-08-16T23:59:59.000Z

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

Development of a novel passive top-down uniflow scavenged two-stroke GDI engine  

SciTech Connect (OSTI)

The design and performance characteristics of a novel top-down uniflow scavenged gasoline direct-injection two-stroke engine are presented. The novelty of the engine lies in the cylinder head that contains multiple check valves that control scavenging airflow into the cylinder from a supercharged air plenum. When the cylinder pressure drops below the intake plenum pressure during the expansion stroke, air flows into the cylinder through the check valves. During compression the cylinder pressure increases to a level above the intake plenum pressure and the check valves close preventing back-flow into the intake plenum. The engine head design provides asymmetrical intake valve timing without the use of poppet valves and the associated valve-train. In combination with an external Roots-type supercharger that supplies the plenum and exhaust ports at the bottom of the cylinder wall, the novel head provides top-down uniflow air scavenging. Motoring tests indicated that the check valves seal and the peak pressure is governed by the compression ratio. The only drawback observed is that valve closing is delayed as the engine speed increases. In order to investigate the valve dynamics, additional tests were performed in an optically-accessible cold flow test rig that enabled the direct measurement of valve opening and closing time under various conditions. (author)

Ciccarelli, G.; Reynolds, Steve; Oliver, Phillip [Mechanical and Materials Engineering, Queen's University, Kingston, Ontario, K7P 2M4 (Canada)

2010-02-15T23:59:59.000Z

422

At-Wavelength Interferometry of High-NA Diffraction-Limited EUV Optics  

E-Print Network [OSTI]

-reflective, Mo/Si-multilayer-coated EUV imaging optics have included two-mirror Schwarzschild designs [1 optical systems, called the Micro Exposure Tool (MET), are two-mirror, 0.3 NA, axially-symmetric systems

Bokor, Jeffrey

423

Design and fabrication of an optical pressure micro sensor for skin mechanics studies  

E-Print Network [OSTI]

The mechanics of skin is as central to touch as optics is to vision and acoustics is to hearing. With the advent of novel imaging technologies such as the Optical Coherence Tomography (OCT), we are now able to view structures ...

Kumar, Siddarth

2006-01-01T23:59:59.000Z

424

Flood-illuminated adaptive optics ophthalmoscope with a single curved relay mirror  

Science Journals Connector (OSTI)

For decreasing light loss and diminishing the aberrations of the optical system, an open-loop adaptive optics (AO) system for retinal imaging in vivo is introduced. Taking advantage of...

Liu, Ruixue; Qi, Yue; Zheng, Xianliang; Xia, Mingliang; Xuan, Li

2013-01-01T23:59:59.000Z

425

Tiny images  

E-Print Network [OSTI]

The human visual system is remarkably tolerant to degradations in image resolution: in a scene recognition task, human performance is similar whether $32 \\times 32$ color images or multi-mega pixel images are used. With ...

Torralba, Antonio

2007-04-23T23:59:59.000Z

426

Optics and Diagnostics  

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

2 14 | Next | Last Back to Index Optics Line up of optics after cleaning. Photo Number: 2013-048779...

427

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

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

428

Topping PCFB combustion plant with supercritical steam pressure  

SciTech Connect (OSTI)

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

429

A Precision Measurement of the Mass of the Top Quark  

E-Print Network [OSTI]

The Standard Model of particle physics contains about two dozen parameters - such as particle masses - whose origins are still unknown and cannot be predicted, but whose values are constrained through their interactions. In particular, the masses of the top (t) quark (M_t) and W boson constrain the mass of the long-hypothesized, but thus far not observed, Higgs boson. A precise measurement of the top-quark mass can therefore point to where to look for the Higgs, and indeed whether the hypothesis of a SM Higgs is consistent with experimental data. Since top quarks are produced in pairs and decay in only ~10^-24 s into various final states, reconstructing their mass from their decay products is very challenging. Here we report a technique that extracts far more information from each top-quark event and yields a greatly improved precision on the top mass of 5.3 GeV/c^2, compared to previous measurements. When our new result is combined with our published measurement in a complementary decay mode and with the onl...

Abazov, V M; Abdesselam, A; Abolins, M; Abramov, V; Acharya, B S; Adams, D L; Adams, M; Ahmed, S N; Alexeev, G D; Alton, A; Alves, G A; Arnoud, Y; Avila, C; Babintsev, V V; Babukhadia, L; Bacon, Trevor C; Baden, A; Baffioni, S; Baldin, B Yu; Balm, P W; Banerjee, S; Barberis, E; Baringer, P; Barreto, J; Bartlett, J F; Bassler, U; Bauer, D; Bean, A; Beaudette, F; Begel, M; Belyaev, A; Beri, S B; Bernardi, G; Bertram, I; Besson, A; Beuselinck, R; Bezzubov, V A; Bhat, P C; Bhatnagar, V; Bhattacharjee, M; Blazey, G; Blekman, F; Blessing, S; Böhnlein, A; Bozhko, N; Bolton, T A; Borcherding, F; Bos, K; Bose, T; Brandt, A; Briskin, G; Brock, R; Brooijmans, G; Bross, A; Buchholz, D; Bühler, M; Büscher, V; Burtovoi, V S; Butler, J M; Canelli, F; Carvalho, W; Casey, D; Castilla-Valdez, H; Chakraborty, D; Chan, K M; Chekulaev, S V; Cho, D K; Choi, S; Chopra, S; Claes, D; Clark, A R; Connolly, B; Cooper, W E; Coppage, D; Crepe-Renaudin, S; Cummings, M A C; Cutts, D; Da Motta, H; Davis, G A; De, K; De Jong, S J; Demarteau, M; Demina, R; Demine, P; Denisov, D; Denisov, S P; Desai, S; Diehl, H T; Diesburg, M; Doulas, S; Dudko, L V; Duflot, L; Dugad, S R; Duperrin, A; Dyshkant, A; Edmunds, D; Ellison, J; Eltzroth, J T; Elvira, V D; Engelmann, R; Eno, S; Eppley, G; Ermolov, P; Eroshin, O V; Estrada, J; Evans, H; Evdokimov, V N; Ferbel, T; Filthaut, F; Fisk, H E; Fortner, M; Fox, H; Fu, S; Fuess, S; Gallas, E; Galjaev, A N; Gao, M; Gavrilov, V; Genik, R J; Genser, K; Gerber, C E; Gershtein, Yu; Ginther, G; Gómez, B; Goncharov, P I; Gounder, K; Goussiou, A; Grannis, P D; Greenlee, H; Greenwood, Z D; Grinstein, S; Groer, L; Grünendahl, S; Grünewald, M W; Gurzhev, S N; Gutíerrez, G; Gutíerrez, P; Hadley, N J; Haggerty, H; Hagopian, S; Hagopian, V; Hall, R E; Han, C; Hansen, S; Hauptman, J M; Hebert, C; Hedin, D; Heinmiller, J M; Heinson, A P; Heintz, U; Hildreth, M D; Hirosky, R; Hobbs, J D; Hoeneisen, B; Huang, J; Huang, Y; Iashvili, I; Illingworth, R; Ito, A S; Jaffré, M; Jain, S; Jesik, R; Johns, K; Johnson, M; Jonckheere, A; Jöstlein, H; Juste, A; Kahl, W; Kahn, S; Kajfasz, E; Kalinin, A M; Karmanov, D; Karmgard, D; Kehoe, R; Kesisoglou, S; Khanov, A; Kharchilava, A I; Klima, B; Kohli, J M; Kostritskii, A V; Kotcher, J; Kothari, B; Kozelov, A V; Kozlovskii, E A; Krane, J; Krishnaswamy, M R; Krivkova, P; Krzywdzinski, S; Kubantsev, M A; Kuleshov, S; Kulik, Y; Kunori, S; Kupco, A; Kuznetsov, V E; Landsberg, G L; Lee, W M; Leflat, A; Lehner, F; Leonidopoulos, C; Li, J; Li, Q Z; Lima, J G R; Lincoln, D; Linn, S L; Linnemann, J; Lipton, R; Lucotte, A; Lueking, L; Lundstedt, C; Luo, C; Maciel, A K A; Madaras, R J; Malyshev, V L; Manankov, V; Mao, H S; Marshall, T; Martin, M I; Mattingly, S E K; Mayorov, A A; McCarthy, R; McMahon, T; Melanson, H L; Melnitchouk, A S; Merkin, M; Merritt, K W; Miao, C; Miettinen, H; Mihalcea, D; Mokhov, N V; Mondal, N K; Montgomery, H E; Moore, R W; Mutaf, Y D; Nagy, E; Narain, M; Narasimham, V S; Naumann, N A; Neal, H A; Negret, J P; Nelson, S; Nomerotski, A; Nunnemann, T; O'Neil, D; Oguri, V; Oshima, N; Padley, P; Papageorgiou, K; Parashar, N; Partridge, R; Parua, N; Patwa, A; Peters, O; Petroff, P; Piegaia, R; Pope, B G; Prosper, H B; Protopopescu, S D; Przybycien, M B; Qian, J; Rajagopalan, S; Rapidis, P A; Reay, N W; Reucroft, S; Ridel, M; Rijssenbeek, M; Rizatdinova, F K; Rockwell, T; Royon, C; Rubinov, P; Ruchti, R; Sabirov, B M; Sajot, G; Santoro, A F S; Sawyer, L; Schamberger, R D; Schellman, H; Schwartzman, A; Shabalina, E; Shivpuri, R K; Shpakov, D; Shupe, M; Sidwell, R A; Simák, V; Sirotenko, V I; Slattery, P F; Smith, R P; Snow, G R; Snow, J; Snyder, S; Solomon, J; Song, Y; Sorin, V; Sosebee, M; Sotnikova, N; Soustruznik, K; Souza, M; Stanton, N R; Steinbruck, G; Stoker, D; Stolin, V; Stone, A; Stoyanova, D A; Strang, M A; Strauss, M; Strovink, M; Stutte, L; Sznajder, A; Talby, M; Taylor, W; Tentindo-Repond, S; Trippe, T G; Turcot, A S; Tuts, P M; Van Kooten, R; Vaniev, V; Varelas, N; Villeneuve-Séguier, F; Volkov, A A; Vorobev, A P; Wahl, H D; Wang, Z M; Warchol, J; Watts, G; Wayne, M; Weerts, H; White, A; Whiteson, D; Wijngaarden, D A; Willis, S; Wimpenny, S J; Womersley, J; Wood, D R; Xu, Q; Yamada, R; Yasuda, T; Yatsunenko, Y A; Yip, K; Yu, J; Zanabria, M; Zhang, X; Zhou, B; Zhou, Z; Zielinski, M; Zieminska, D; Zieminski, A; Zutshi, V; Zverev, E G; Zylberstejn, A

2004-01-01T23:59:59.000Z

430

Parallel optical sampler  

SciTech Connect (OSTI)

An optical sampler includes a first and second 1.times.n optical beam splitters splitting an input optical sampling signal and an optical analog input signal into n parallel channels, respectively, a plurality of optical delay elements providing n parallel delayed input optical sampling signals, n photodiodes converting the n parallel optical analog input signals into n respective electrical output signals, and n optical modulators modulating the input optical sampling signal or the optical analog input signal by the respective electrical output signals, and providing n successive optical samples of the optical analog input signal. A plurality of output photodiodes and eADCs convert the n successive optical samples to n successive digital samples. The optical modulator may be a photodiode interconnected Mach-Zehnder Modulator. A method of sampling the optical analog input signal is disclosed.

Tauke-Pedretti, Anna; Skogen, Erik J; Vawter, Gregory A

2014-05-20T23:59:59.000Z

431

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

Broader source: Energy.gov [DOE]

Document details the goals, strategies, and top accomplishments of DOE's Materials Technologies subprogram.

432

Tapping Top University Draft Picks to Engineer Solar Championships |  

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

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

433

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":""}]}

434

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

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

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.

435

Green Power Network: Top Ten Utility Green Power Programs  

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

436

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":""}]}

437

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

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

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

438

Success at Sandia - Attracting Top Native American STEM Professionals to  

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

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

439

Energy Department Recognizes Nation's Top Green Power Programs |  

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

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

440

DOE Recognizes Top ENERGY STAR Partners | Department of Energy  

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

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

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

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

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

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.

442

Limiting Factors for Convective Cloud Top Height in the Tropics  

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

443

Energy Department Receives EPA Award for Top Green Power Purchase |  

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

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

444

Anatomy of Coannihilation with a Scalar Top Partner  

E-Print Network [OSTI]

We investigate a simplified model of dark matter where a Majorana fermion $\\chi$ coannihilates with a colored scalar top partner $\\tilde{t}$. We explore the cosmological history, with particular emphasis on the most relevant low-energy parameters: the mass splitting between the dark matter and the coannihilator, and the Yukawa coupling $y_\\chi$ that connects these fields to the Standard Model top quarks. We also allow a free quartic coupling $\\lambda_h$ between a pair of Higgs bosons and $\\tilde{t}$ pairs. We pay special attention to the case where the values take on those expected where $\\tilde{t}$ corresponds to the superpartner of the right-handed top, and $\\chi$ is a bino. Direct detection, indirect detection, and colliders are complementary probes of this simple model.

Ibarra, A; Shah, N R; Vogl, S

2015-01-01T23:59:59.000Z

445

Rotating mousehole improves top drive/conventional drilling  

SciTech Connect (OSTI)

Top drive speed and efficiency are limited and have not reached full potential because of operation ``bottlenecks`` during makeup or breakout of triple pipe stands and bottomhole assembly (BHA) change out. Operators and contractors analyzed tools to overcome these limitations and found a potential solution from International Tool Co., a supplier of kelly spinners, in a tool that has improved make/break efficiency and rig floor safety. The Phantom Mouse rotating mousehole assembly was developed to improve drilling efficiency on top-drive-equipped rigs. This new device tightens connections so pipe stands can be set back in derricks. Using the system, crews can quickly and efficiently make up and set back DP stands while drilling ahead with top drives. It can also be used to break out and lay down excess DP from the derrick.

NONE

1995-08-01T23:59:59.000Z

446

Carlsbad Field Office Technical Assistance Contractor Shares In Top Honor |  

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

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

447

Energy Department Receives EPA Award for Top Green Power Purchase |  

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

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

448

Top 10 Reasons for Energy Codes | Building Energy Codes Program  

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

449

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

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

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

450

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

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

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

451

Success at Sandia - Attracting Top Native American STEM Professionals to  

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

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

452

Mapping higher-order brain function and resting-state networks with diffuse optical tomography  

Science Journals Connector (OSTI)

We present integrative advances in high-density diffuse optical tomography imaging arrays, large field-of-view instrumentation, and anatomical head modeling. The system was tested by...

Eggebrecht, Adam T; Ferradal, Silvina L; Robichaux-Viehoever, Amy; Hassanpour, Mahlega S; Dehghani, Hamid; Snyder, Abraham; Hershey, Tamara; Culver, Joseph P

453

Optical Packet Switching -1 Optical Networks  

E-Print Network [OSTI]

Optical Packet Switching - 1 Optical Networks: from fiber transmission to photonic switching Optical Packet Switching Fabio Neri and Marco Mellia TLC Networks Group ­ Electronics Department e.mellia@polito.it ­ tel. 011 564 4173 #12;Optical Packet Switching - 2 · This work is licensed under the Creative Commons

Mellia, Marco

454

Quantum top inside a Bose-Einstein-condensate Josephson junction  

SciTech Connect (OSTI)

We consider an atomic quantum dot confined between two weakly coupled Bose-Einstein condensates, where the dot serves as an additional tunneling channel. It is shown that the thus-embedded atomic quantum dot is a pseudospin subject to an external torque, and therefore equivalent to a quantum top. We demonstrate by numerical analysis of the time-dependent coupled evolution equations that this microscopic quantum top is very sensitive to any deviation from linear oscillatory behavior of the condensates. For sufficiently strong dot-condensate coupling, the atomic quantum dot can induce or modify the tunneling between the macroscopic condensates in the two wells.

Bausmerth, Ingrid; Posazhennikova, Anna [Institut fuer Theoretische Festkoerperphysik, Universitaet Karlsruhe, D-76128 Karlsruhe (Germany); Fischer, Uwe R. [Institut fuer Theoretische Physik, Eberhard-Karls-Universitaet Tuebingen, Auf der Morgenstelle 14, D-72076 Tuebingen (Germany)

2007-05-15T23:59:59.000Z

455

Top quarks as a probe for heavy new physics  

E-Print Network [OSTI]

The heaviest fermion is expected to couple strongly to new physics and appears therefore as a natural probe in many BSM scenarios. Moreover, top physics has now entered in a precision era thanks to the huge amount of top quarks produced at hadron colliders, advanced experimental methods and accurate theoretical predictions. In this talk, we will used effective field theory to search for heavy new physics in a model independent way. This method can also be used to quantify the room left for new physics if no deviation from the SM is found.

Celine Degrande

2014-07-11T23:59:59.000Z

456

Top Quark Studies with the first CMS Data  

E-Print Network [OSTI]

Studies are presented of the selection of events consistent with top quark pair production in data recorded by the CMS detector at the LHC, corresponding to an integrated luminosity of 0.84+/-0.09 1/pb and at center-of-mass energy sqrt{s}=7 TeV. Results are presented for the lepton+jets as well as dilepton channels. Event yields in data are compared to those in simulation, and several background processes are estimated using data-driven techniques. The observed yields of top-antitop candidate events are roughly consistent with the Standard Model.

Frank-Peter Schilling

2010-10-12T23:59:59.000Z

457

Optical control of large-signal properties of millimeter-wave and sub-millimeter-wave DDR Si IMPATTs  

Science Journals Connector (OSTI)

The authors have proposed a complete large-signal (L-S) model to investigate the optical modulation of high frequency properties of double-drift region (DDR) impact avalanche transit time (IMPATT) devices operating at different millimeter-wave and sub-millimeter-wave ... Keywords: DDR IMPATT device, Flip chip, Millimeter-wave, Optical control, Sub-millimeter-wave, Top mount

Aritra Acharyya, Suranjana Banerjee, J. P. Banerjee

2014-06-01T23:59:59.000Z

458

Micropolarizing device for long wavelength infrared polarization imaging.  

SciTech Connect (OSTI)

The goal of this project is to fabricate a four-state pixelated subwavelength optical device that enables mid-wave infrared (MWIR) or long-wave infrared (LWIR) snapshot polarimetric imaging. The polarization information can help to classify imaged materials and identify objects of interest for numerous remote sensing and military applications. While traditional, sequential polarimetric imaging produces scenes with polarization information through a series of assembled images, snapshot polarimetric imaging collects the spatial distribution of all four Stokes parameters simultaneously. In this way any noise due to scene movement from one frame to the next is eliminated. We fabricated several arrays of subwavelength components for MWIR polarization imaging applications. Each pixel unit of the array consists of four elements. These elements are micropolarizers with three or four different polarizing axis orientations. The fourth element sometimes has a micro birefringent waveplate on the top of one of the micropolarizers. The linear micropolarizers were fabricated by patterning nano-scale metallic grids on a transparent substrate. A large area birefringent waveplate was fabricated by deeply etching a subwavelength structure into a dielectric substrate. The principle of making linear micropolarizers for long wavelengths is based upon strong anisotropic absorption of light in the nano-metallic grid structures. The nano-metallic grid structures are patterned with different orientations; therefore, the micropolarizers have different polarization axes. The birefringent waveplate is a deeply etched dielectric one-dimensional subwavelength grating; therefore two orthogonally polarized waves have different phase delays. Finally, in this project, we investigated the near field and diffractive effects of the subwavelength element apertures upon detection. The fabricated pixelated polarizers had a measured extinction ratios larger than 100:1 for pixel sizes in the order of 15 {micro}m by 15 {micro}m that exceed by 7 times previously reported devices. The fabricated birefringent diffractive waveplates had a total variation of phase delay rms of 9.41 degrees with an average delay of 80.6 degrees across the MWIR spectral region. We found that diffraction effects change the requirement for separation between focal plane arrays (FPA) micropolarizer arrays and birefringent waveplates arrays, originally in the order of hundreds of microns (which are the typical substrate thickness) to a few microns or less. This new requirement leads us to propose new approaches to fabricate these devices.

Wendt, Joel Robert; Carter, Tony Ray; Samora, Sally; Cruz-Cabrera, Alvaro Augusto; Vawter, Gregory Allen; Kemme, Shanalyn A.; Alford, Charles Fred; Boye, Robert R.; Smith, Jody Lynn

2006-11-01T23:59:59.000Z

459

$\\mathcal{CP}$-violating top-Higgs coupling and top polarisation in the diphoton decay of the $thj$ channel at the LHC  

E-Print Network [OSTI]

We study the observability of non-standard top Yukawa couplings in the $pp\\rightarrow t(\\rightarrow \\ell \

Yue, Jason

2014-01-01T23:59:59.000Z

460

Optics and Optical Engineering Program Assessment Plan Program Learning Objectives  

E-Print Network [OSTI]

Optics and Optical Engineering Program Assessment Plan Program Learning, and processes that underlie optics and optical engineering. 2. Strong understanding of the fundamental science, mathematics, and processes that underlie optics and optical

Cantlon, Jessica F.

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

Nonlinear optical protection against frequency agile lasers  

SciTech Connect (OSTI)

An eye-protection or equipment-filter device for protection from laser energy is disclosed. The device may be in the form of a telescope, binoculars, goggles, constructed as part of equipment such as image intensifiers or range designators. Optical elements focus the waist of the beam within a nonlinear frequency-doubling crystal or nonlinear optical element or fiber. The nonlinear elements produce a harmonic outside the visible spectrum in the case of crystals, or absorb the laser energy in the case of nonlinear fibers. Embodiments include protectors for the human eye as well as filters for sensitive machinery such as TV cameras, FLIR systems or other imaging equipment.

McDowell, V.P.

1988-08-04T23:59:59.000Z

462

Optical microphone  

DOE Patents [OSTI]

An optical microphone includes a laser and beam splitter cooperating therewith for splitting a laser beam into a reference beam and a signal beam. A reflecting sensor receives the signal beam and reflects it in a plurality of reflections through sound pressure waves. A photodetector receives both the reference beam and reflected signal beam for heterodyning thereof to produce an acoustic signal for the sound waves. The sound waves vary the local refractive index in the path of the signal beam which experiences a Doppler frequency shift directly analogous with the sound waves.

Veligdan, James T. (Manorville, NY)

2000-01-11T23:59:59.000Z

463

Van Berkel receives top Science and Technology honor at UT-Battelle's  

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

464

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

465

16 - CVD in Optical Applications  

Science Journals Connector (OSTI)

Publisher Summary This chapter discusses the chemical vapor deposition (CVD) in optical applications. Optics is rapidly advancing with the development of the laser and optical storage. Evaporation is the original coating process and is low cost and simple to apply. However, evaporative coatings show a pronounced columnar structure, which causes much light scattering, a high wavelength shift with temperature and time, and a high stress. Thus, evaporation is replaced by other thin-film processes, which are primarily standard and ion-beam sputtering. CVD techniques, such as plasma CVD and metallo-organic chemical vapor deposition (MOCVD) are also useful, especially in high-quality applications or where surfaces of three-dimensional objects are to be coated. Some of the optical applications of CVD include antireflection coatings, reflective coatings, heat and light separation coatings, electrically conductive transparent coatings, and architectural-glass coating. The function of an antireflection (AR) coating is to reduce the surface reflection of optical elements and increase the amount of light transmitted. The glare and ghost images from secondary reflections are minimized. The AR coatings are used in numerous applications such as lasers, lenses for cameras and binoculars, instrument panels, microscopes, and telescopes.

Hugh O. Pierson

1999-01-01T23:59:59.000Z

466

CDF/TOP/DOC/6265 Version 1.1  

E-Print Network [OSTI]

subsets, based on the number of electrons, muons and the amount of missing transverse energy. In order a complete description of the high p T electron and muon data samples which will be used for Top Introduction The Level 3 trigger data-sets for high p T electrons and muons have identi#12;ers bhel08 and bhmu

467

Private Top-Aggregation Protocols Myungsun Kim1  

E-Print Network [OSTI]

- items, data privacy, user privacy 1 Introduction Privacy has become a big concern in many applications jhcheon@snu.ac.kr 4 Department of Electrical Engineering Korea Advanced Institute of Science and Technology yongdaek@ee.kaist.ac.kr Abstract. In this paper, we revisit the private top- data aggregation

468

Precision Top-Quark Mass Measurements at CDF  

SciTech Connect (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

469

Top-Down XML Keyword Query Processing Junfeng Zhou1  

E-Print Network [OSTI]

keyword query w.r.t. LCA/SLCA/ELCA semantics. By "top-down", we mean that we visit all common ancestor (CA to define meaningful results, for which the basic semantics is Lowest Common Ancestor (LCA). Based on LCA, the most widely adopted query semantics are Exclusive LCA (ELCA) [3,7,10,23,27] and Smallest LCA (SLCA) [3

New South Wales, University of

470

Review of Top Physics at D Scott Snyder  

E-Print Network [OSTI]

Review of Top Physics at DÃ? Scott Snyder Brookhaven National Laboratory For the DÃ? Collaboration Fermilab Oct 16, 1997 #12; Outline ffl I. Introduction. ffl II. Cross Section Measurement. ffl III. Mass Measurement. ffl IV. Kinematic Distributions. ffl V. Charged Higgs Search. ffl VI. Run 2. 1 #12; I

Quigg, Chris

471

Supervisor at the University of Groningen Prof. dr. Jaap Top  

E-Print Network [OSTI]

#12;Supervisor at the University of Groningen Prof. dr. Jaap Top Supervisor at TNO Information and Communication Technology Dr. Jaap-Henk Hoepman Co-supervisor at the University of Groningen Prof. dr. Ruth F This thesis is the last project of my study of Mathematics at the University of Groningen. It is also

Hoepman, Jaap-Henk

472

iCons, 2011 Top 10 Scientific Achievements: Lesson Plan  

E-Print Network [OSTI]

� iCons, 2011 Top 10 Scientific Achievements: Lesson Plan Handouts: 1. 2? #12; � iCons, 2011 Research Is there any organizational structure the iCons I course. Explain what/how they should submit their final statements in SPARK, and give them

Auerbach, Scott M.

473

Top quark mass measurement using the template method at CDF  

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

We present a measurement of the top quark mass in the lepton+jets and dilepton channels of tt? decays using the template method. The data sample corresponds to an integrated luminosity of 5.6 fb-1 of pp? collisions at Tevatron with ?s = 1.96 TeV, collected with the CDF II detector. The measurement is performed by constructing templates of three kinematic variables in the lepton+jets and two kinematic variables in the dilepton channel. The variables are two reconstructed top quark masses from different jets-to-quarks combinations and the invariant mass of two jets from the W decay in the lepton+jets channel, and a reconstructed top quark mass and mT2, a variable related to the transverse mass in events with two missing particles, in the dilepton channel. The simultaneous fit of the templates from signal and background events in the lepton+jets and dilepton channels to the data yields a measured top quark mass of Mtop = 172.1±1.1 (stat)±0.9 (syst) GeV/c2.

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.; Annovi, A [Frascati; Antos, J [Comenius U.; Apollinari, G [Fermilab; Appel, J A [Fermilab; Apresyan, A [Purdue U.; Arisawa, T [Waseda U.; Dubna, JINR

2011-06-03T23:59:59.000Z

474

The TopModL Initiative Pierre-Alain Muller  

E-Print Network [OSTI]

for an environment to support research and experiments on model-driven engineering. Therefore we have started the Top of supporting environment should be defined? Obviously the scope of model-driven engineering is wide and a lot: · an executable environment for quick and easy experimentation, · a set of source files and a compilation tool

Paris-Sud XI, Université de

475

Environmental assessment of curly top virus control in California  

SciTech Connect (OSTI)

Curly top is a viral disease of sugarbeets, tomatoes, melons, peppers, beans, cucumbers, squash, pumpkins, spinach, vineseed and other commercially important crops, including ornamentals. Curly top not only infects commercial crops, but at times devastates backyard vegetable and flower gardens. The only known vector of curly top is Circulifer tenellus, commonly known as the beet leafhopper. Control of the beet leafhopper may take place at various locations throughout the San Joaquin Valley, Salinas Valley, Cuyama Valley, Antelope Valley of northern Los Angeles County, Riverside County and the Imperial Valley (See Maps in Appendix ``E``), including portions of Merced, Fresno, Kings. Kern, San Luis Obispo, Monterey, San Benito, Santa Barbara, Los Angeles, Riverside and Imperial Counties. The size of the control program is totally dependent on the location, size, nd distribution of the beet leafhopper population. In a year with a low population, only 80,000 acres in western Fresno, Kings, and Kern Counties may require treatment. In a drought year, the treatment required may increase to more than 200,000 acres and include some inter-coastal valleys of Monterey, San Luis Obispo and Santa Barbara Counties. Not all areas require treatment on an annual basis and at no time is the entire area subject to blanket treatment. The Curly Top Virus Control Program (CTVCP) was instrumental in supporting research which developed an antisera allowing the use of Enzyme-Linked Immunosorbent Assay to determine the presence, on a percentage basis, of curly top virus. Thus, the amount of virus found in a given area lends weight to treatment priorities.

Not Available

1991-03-15T23:59:59.000Z

476

An economical optical system design using phase diversity  

E-Print Network [OSTI]

The resolution of an incoherent imaging system is olden limited aberrations. Phase aberrations by phase arise from a variety of sources including atmospheric turbulence, misaligned optical and improper mirror figure. Knowledge of phase aberrations...

Thosani, Samir C.

2012-06-07T23:59:59.000Z

477

Specimen illumination apparatus with optical cavity for dark field illumination  

DOE Patents [OSTI]

An illumination apparatus with a specimen slide holder, an illumination source, an optical cavity producing multiple reflection of illumination light to a specimen comprising a first and a second reflective surface arranged to achieve multiple reflections of light to a specimen is provided. The apparatus can further include additional reflective surfaces to achieve the optical cavity, a slide for mounting the specimen, a coverslip which is a reflective component of the optical cavity, one or more prisms for directing light within the optical cavity, antifading solutions for improving the viewing properties of the specimen, an array of materials for analysis, fluorescent components, curved reflective surfaces as components of the optical cavity, specimen detection apparatus, optical detection equipment, computers for analysis of optical images, a plane polarizer, fiberoptics, light transmission apertures, microscopic components, lenses for viewing the specimen, and upper and lower mirrors above and below the specimen slide as components of the optical cavity. Methods of using the apparatus are also provided.

Pinkel, Daniel (Walnut Creek, CA); Sudar, Damir (Walnut Creek, CA); Albertson, Donna (Lafayette, CA)

1999-01-01T23:59:59.000Z

478

Optical sedimentation recorder  

DOE Patents [OSTI]

A robotic optical sedimentation recorder is described for the recordation of carbon flux in the oceans wherein both POC and PIC particles are captured at the open end of a submersible sampling platform, the captured particles allowed to drift down onto a collection plate where they can be imaged over time. The particles are imaged using three separate light sources, activated in sequence, one source being a back light, a second source being a side light to provide dark field illumination, and a third source comprising a cross polarized light source to illuminate birefringent particles. The recorder in one embodiment is attached to a buoyancy unit which is capable upon command for bringing the sedimentation recorder to a programmed depth below the ocean surface during recordation mode, and on command returning the unit to the ocean surface for transmission of recorded data and receipt of new instructions. The combined unit is provided with its own power source and is designed to operate autonomously in the ocean for extended periods of time.

Bishop, James K.B.

2014-05-06T23:59:59.000Z

479

People Images  

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

Images People Images Several hundred of the 1700 U.S. scientists contributing to the LHC accelerator and experiments gathered in June 2008 in CERN's building 40 CE0252 Joel...

480

Optical data latch  

DOE Patents [OSTI]

An optical data latch is formed on a substrate from a pair of optical logic gates in a cross-coupled arrangement in which optical waveguides are used to couple an output of each gate to an photodetector input of the other gate. This provides an optical bi-stability which can be used to store a bit of optical information in the latch. Each optical logic gate, which can be an optical NOT gate (i.e. an optical inverter) or an optical NOR gate, includes a waveguide photodetector electrically connected in series with a waveguide electroabsorption modulator. The optical data latch can be formed on a III-V compound semiconductor substrate (e.g. an InP or GaAs substrate) from III-V compound semiconductor layers. A number of optical data latches can be cascaded to form a clocked optical data shift register.

Vawter, G. Allen (Corrales, NM)

2010-08-31T23:59:59.000Z

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

Visualizing the Local Optical Response of Semiconducting Carbon Nanotubes to  

E-Print Network [OSTI]

Visualizing the Local Optical Response of Semiconducting Carbon Nanotubes to DNA-Wrapping Huihong ABSTRACT We studied the local optical response of semiconducting single-walled carbon nanotubes to wrapping-field images of single nanotubes reveal large DNA-wrapping-induced red shifts of the exciton energy

Novotny, Lukas

482

Inverse scattering for rotationally scanned optical coherence tomography  

E-Print Network [OSTI]

Inverse scattering for rotationally scanned optical coherence tomography Daniel L. Marks, Tyler S May 16, 2006; posted May 26, 2006 (Doc. ID 67358) Optical coherence tomography of luminal structures coherence tomography1,2 (OCT), is determined in large part by the degree to which the images provide

Bhargava, Rohit

483

Full-wavelet approach for fluorescence diffuse optical tomography  

E-Print Network [OSTI]

Full-wavelet approach for fluorescence diffuse optical tomography with structured illumination Leonardo da Vinci 32, I-20133 Milan, Italy 3 Centre for Medical Image Computing, University College London); published October 28, 2010 We present a fast reconstruction method for fluorescence optical tomography

Boyer, Edmond

484

Final Report: Towards Optimal Petascale Simulations (TOPS), ER25785  

SciTech Connect (OSTI)

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

485

Polarization imaging apparatus with auto-calibration  

DOE Patents [OSTI]

A polarization imaging apparatus measures the Stokes image of a sample. The apparatus consists of an optical lens set, a first variable phase retarder (VPR) with its optical axis aligned 22.5.degree., a second variable phase retarder with its optical axis aligned 45.degree., a linear polarizer, a imaging sensor for sensing the intensity images of the sample, a controller and a computer. Two variable phase retarders were controlled independently by a computer through a controller unit which generates a sequential of voltages to control the phase retardations of the first and second variable phase retarders. A auto-calibration procedure was incorporated into the polarization imaging apparatus to correct the misalignment of first and second VPRs, as well as the half-wave voltage of the VPRs. A set of four intensity images, I.sub.0, I.sub.1, I.sub.2 and I.sub.3 of the sample were captured by imaging sensor when the phase retardations of VPRs were set at (0,0), (.pi.,0), (.pi.,.pi.) and (.pi./2,.pi.), respectively. Then four Stokes components of a Stokes image, S.sub.0, S.sub.1, S.sub.2 and S.sub.3 were calculated using the four intensity images.

Zou, Yingyin Kevin; Zhao, Hongzhi; Chen, Qiushui

2013-08-20T23:59:59.000Z

486

Optics and Diagnostics  

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

1 14 | Next | Last Back to Index Optics Optics processing of Target Wedged Focus Lens into cleaningcoating frame. Photo Number: 2013-048765...

487

Optics and Diagnostics  

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

3 14 | Next | Last Back to Index Optics Alignment Conducting an optics alignment after replacement of a Pockels Cell in the clean room. Photo Number: 2013-050691...

488

Optics and Diagnostics  

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

9 14 | Next | Last Back to Index Optics Processing Optics for the National Ignition Facility must be manufactured to exacting standards. To ensure quality, precise measurements...

489

Image Stabilization Device of Aerial Camera Based on Mobile CCD  

Science Journals Connector (OSTI)

In order to solve the problem of image motion and the problem of out of focus during aerial camera exposure, there provide an image stabilization device. In the device there is a motive CCD driven by linear ultrasonic motors (LUM) in three directions. ... Keywords: optical devices, areal camera, Image stabilization, focal plane rectification, linear ultrasonic motor

Dengqun Yu; Enshi Qu; Jianzhong Cao; Jian Zhang; Aqi Yan

2012-04-01T23:59:59.000Z

490

Optical Blade Position Tracking System Test  

SciTech Connect (OSTI)

The Optical Blade Position Tracking System Test measures the blade deflection along the span of the blade using simple off-the-shelf infrared security cameras along with blade-mounted retro-reflective tape and video image processing hardware and software to obtain these measurements.

Fingersh, L. J.

2006-01-01T23:59:59.000Z

491

Sequoia tops Graph 500 list of 'big data' supercomputers  

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

492

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

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

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.

493

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":""}]}

494

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":""}]}

495

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":""}]}

496

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

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

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.

497

Westinghouse earns top award from quality new mexico  

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

498

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

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

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.

499

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":""}]}

500

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