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1

Holographic SIS Josephson Junction  

E-Print Network (OSTI)

We construct a holographic model for the superconductor-insulator-superconductor (SIS) Josephson junction at zero temperature by considering a complex scalar field coupled with a U(1) gauge field in the four dimensional Anti de Sitter soliton background. As a result, we successfully reproduce many characteristic features of the Josephson junction in condensed matter physics, such as the sine relation between the DC current and the phase difference across the junction.

Wang, Yong-Qiang; Cai, Rong-Gen; Takeuchi, Shingo; Zhang, Hai-Qing

2012-01-01T23:59:59.000Z

2

Holographic SIS Josephson Junction  

E-Print Network (OSTI)

We construct a holographic model for the superconductor-insulator-superconductor (SIS) Josephson junction at zero temperature by considering a complex scalar field coupled with a Maxwell field in the four-dimensional anti-de Sitter soliton background. From the gravity side we reproduce the sine relation between the Josephson current and the phase difference across the junction. We also study the dependence of the maximal current on the dimension of the condensate operator and on the width of the junction, and obtain expected results.

Yong-Qiang Wang; Yu-Xiao Liu; Rong-Gen Cai; Shingo Takeuchi; Hai-Qing Zhang

2012-09-23T23:59:59.000Z

3

The SIS heavy ion synchrotron project  

SciTech Connect

The status of the SIS 18 synchroton project is described along with recent modifications and supplements: the modifications of the Unilac and the experimental storage ring.

Blasche, K.; Bohne, D.; Franzke, B.; Prange, H.

1985-10-01T23:59:59.000Z

4

Strange particle production from SIS to LHC  

Science Journals Connector (OSTI)

A review of meson emission in heavy-ion collisions at incident energies from SIS up to collider energies is presented. A statistical model assuming chemical equilibrium and local strangeness conservation (i.e....

H. Oeschler; J. Cleymans; K. Redlich

2003-05-01T23:59:59.000Z

5

Future perspectives at SIS-100 with HADES-at-FAIR  

E-Print Network (OSTI)

Currently, the HADES spectrometer undergoes un upgrade program to be prepared for measurements at the upcoming SIS-100 synchrotron at FAIR. We describe the current status of the HADES di-electron measurements at the SIS-18 and our future plans for SIS-100.

FrŲhlich, I

2009-01-01T23:59:59.000Z

6

Future perspectives at SIS-100 with HADES-at-FAIR  

E-Print Network (OSTI)

Currently, the HADES spectrometer undergoes un upgrade program to be prepared for measurements at the upcoming SIS-100 synchrotron at FAIR. We describe the current status of the HADES di-electron measurements at the SIS-18 and our future plans for SIS-100.

The HADES Collaboration; I. Froehlich; G. Agakishiev; A. Balanda; G. Bellia; D. Belver; A. Belyaev; A. Blanco; M. Boehmer; J. L. Boyard; P. Braun-Munzinger; P. Cabanelas; E. Castro; S. Chernenko; T. Christ; M. Destefanis; J. Diaz; F. Dohrmann; A. Dybczak; L. Fabbietti; O. Fateev; P. Finocchiaro; P. Fonte; J. Friese; T. Galatyuk; J. A. Garzon; R. Gernhaeuser; A. Gil; C. Gilardi; M. Golubeva; D. Gonzalez-Diaz; E. Grosse; F. Guber; M. Heilmann; T. Hennino; R. Holzmann; A. Ierusalimov; I. Iori; A. Ivashkin; M. Jurkovic; B. Kaempfer; K. Kanaki; T. Karavicheva; D. Kirschner; I. Koenig; W. Koenig; B. W. Kolb; R. Kotte; A. Kozuch; A. Krasa; F. Krizek; R. Kruecken; W. Kuehn; A. Kugler; A. Kurepin; J. Lamas-Valverde; S. Lang; J. S. Lange; K. Lapidus; T. Liu; L. Lopes; M. Lorenz; L. Maier; A. Mangiarotti; J. Marin; J. Markert; V. Metag; B. Michalska; J. Michel; D. Mishra; E. Moriniere; J. Mousa; C. Muentz; L. Naumann; R. Novotny; J. Otwinowski; Y. C. Pachmayer; M. Palka; Y. Parpottas; V. Pechenov; O. Pechenova; T. Perez Cavalcanti; J. Pietraszko; W. Przygoda; B. Ramstein; A. Reshetin; A. Rustamov; A. Sadovsky; P. Salabura; A. Schmah; R. Simon; Yu. G. Sobolev; S. Spataro; B. Spruck; H. Stroebele; J. Stroth; C. Sturm; M. Sudol; A. Tarantola; K. Teilab; P. Tlusty; M. Traxler; R. Trebacz; H. Tsertos; I. Veretenkin; V. Wagner; M. Weber; M. Wisniowski; J. Wuestenfeld; S. Yurevich; Y. Zanevsky; P. Zhou; P. Zumbruch

2009-06-15T23:59:59.000Z

7

Are gratings invisible?  

Science Journals Connector (OSTI)

I show that laser grating accelerators may encounter serious difficulties in operating near or even below the damage threshold caused by the formation of a dense plasma above the grating which obscures the grating shape.

Paul J. Channell

1982-01-01T23:59:59.000Z

8

Multilayer dielectric diffraction gratings  

DOE Patents (OSTI)

The design and fabrication of dielectric grating structures with high diffraction efficiency used in reflection or transmission is described. By forming a multilayer structure of alternating index dielectric materials and placing a grating structure on top of the multilayer, a diffraction grating of adjustable efficiency, and variable optical bandwidth can be obtained. Diffraction efficiency into the first order in reflection varying between 1 and 98 percent has been achieved by controlling the design of the multilayer and the depth, shape, and material comprising the grooves of the grating structure. Methods for fabricating these gratings without the use of ion etching techniques are described.

Perry, Michael D. (Livermore, CA); Britten, Jerald A. (Oakley, CA); Nguyen, Hoang T. (Livermore, CA); Boyd, Robert (Livermore, CA); Shore, Bruce W. (Livermore, CA)

1999-01-01T23:59:59.000Z

9

Multilayer dielectric diffraction gratings  

DOE Patents (OSTI)

The design and fabrication of dielectric grating structures with high diffraction efficiency used in reflection or transmission is described. By forming a multilayer structure of alternating index dielectric materials and placing a grating structure on top of the multilayer, a diffraction grating of adjustable efficiency, and variable optical bandwidth can be obtained. Diffraction efficiency into the first order in reflection varying between 1 and 98 percent has been achieved by controlling the design of the multilayer and the depth, shape, and material comprising the grooves of the grating structure. Methods for fabricating these gratings without the use of ion etching techniques are described. 7 figs.

Perry, M.D.; Britten, J.A.; Nguyen, H.T.; Boyd, R.; Shore, B.W.

1999-05-25T23:59:59.000Z

10

Applying Human Factors during the SIS Life Cycle  

SciTech Connect

Safety Instrumented Systems (SIS) are widely used in U.S. Department of Energy's (DOE) nonreactor nuclear facilities for safety-critical applications. Although use of the SIS technology and computer-based digital controls, can improve performance and safety, it potentially introduces additional complexities, such as failure modes that are not readily detectable. Either automated actions or manual (operator) actions may be required to complete the safety instrumented function to place the process in a safe state or mitigate a hazard in response to an alarm or indication. DOE will issue a new standard, Application of Safety Instrumented Systems Used at DOE Nonreactor Nuclear Facilities, to provide guidance for the design, procurement, installation, testing, maintenance, operation, and quality assurance of SIS used in safety significant functions at DOE nonreactor nuclear facilities. The DOE standard focuses on utilizing the process industry consensus standard, American National Standards Institute/ International Society of Automation (ANSI/ISA) 84.00.01, Functional Safety: Safety Instrumented Systems for the Process Industry Sector, to support reliable SIS design throughout the DOE complex. SIS design must take into account human-machine interfaces and their limitations and follow good human factors engineering (HFE) practices. HFE encompasses many diverse areas (e.g., information display, user-system interaction, alarm management, operator response, control room design, and system maintainability), which affect all aspects of system development and modification. This paper presents how the HFE processes and principles apply throughout the SIS life cycle to support the design and use of SIS at DOE nonreactor nuclear facilities.

Avery, K.

2010-05-05T23:59:59.000Z

11

The Mutton Snapper (Lutjanus analis) Spawning Aggregation Fishery at Gladden Spit, Belize: Inter-annual and Within-season Dynamics  

E-Print Network (OSTI)

.............................................................................................. 33 2.5. Summary ................................................................................................ 40 CHAPTER III WITHIN-SEASON DYNAMICS OF THE MUTTON SNAPPER (Lutjanus analis) SPAWNING AGGREGATION FISHERY AT GLADDEN SPIT... ............................................................................. 45 3.3. Results .................................................................................................... 54 3.4. Discussion .............................................................................................. 60 3.5. Summary...

Granados-Dieseldorff, Pablo

2013-11-07T23:59:59.000Z

12

Incinerator Grate Combustion Phenomena  

Science Journals Connector (OSTI)

The predominant MSW incinerators burn wastes of a wide range of calorific values on a moving grate, without any waste preprocessing. However, in some countries, these incineration systems suffer from unfavora...

Prof. J. Swithenbank; Prof. Vida N. Sharifi

2013-01-01T23:59:59.000Z

13

Supersymmetric Bragg gratings  

E-Print Network (OSTI)

The supersymmetric (SUSY) structure of coupled-mode equations that describe scattering of optical waves in one-dimensional Bragg gratings is highlighted. This property can find applications to the synthesis of special Bragg filters and distributed-feedback (DFB) optical cavities. In particular, multiple SUSY (Darboux-Crum) transformations can be used to synthesize DFB filters with any desired number of resonances at target frequencies. As an example, we describe the design of a DFB structure with a set of equally-spaced resonances, i.e. a frequency comb transmission filter.

Longhi, Stefano

2015-01-01T23:59:59.000Z

14

Gratings Inc | Open Energy Information  

Open Energy Info (EERE)

Gratings Inc Gratings Inc Jump to: navigation, search Name Gratings, Inc. Place Albuquerque, New Mexico Zip 87107 Product R&D firm that specialises in microstructural and nanostructural approaches to different challenges facing the microelectronics and power industries. Coordinates 35.08418¬į, -106.648639¬į 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":35.08418,"lon":-106.648639,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

15

ComSIS Vol. 1, No. 1, February 2004 75 Network Models of Massive Datasets  

E-Print Network (OSTI)

ComSIS Vol. 1, No. 1, February 2004 75 Network Models of Massive Datasets Vladimir Boginski 1 overview of the methodology of modeling massive datasets arising in various applications as networks. This approach is often useful for extracting non-trivial information from the datasets by applying standard

Butenko, Sergiy

16

Synthesis and microstructure of Cd4SiS6/Si composite nanowires  

Science Journals Connector (OSTI)

......and capped with a spherical tip. An interface...proved that the spherical tip is made of metallic...monoclinic Cd4SiS6 crystal, both silicon and...in Fig. 5d. The bent contrast within...clearly displaying the bent contrast. The inset...planar defects in Si crystals. (a) A stacking......

Jinhua Zhan; Yoshio Bando; Junqing Hu; Dmitri Golberg

2005-12-01T23:59:59.000Z

17

Compact Imaging Spectrometer Utilizing Immersed Gratings  

DOE Patents (OSTI)

A compact imaging spectrometer with an immersive diffraction grating that compensates optical distortions. The imaging spectrometer comprises an entrance slit for transmitting light, a system for receiving the light and directing the light, an immersion grating, and a detector array. The entrance slit, the system for receiving the light, the immersion grating, and the detector array are positioned wherein the entrance slit transmits light to the system for receiving the light and the system for receiving the light directs the light to the immersion grating and the immersion grating receives the light and directs the light through an optical element to the detector array.

Chrisp, Michael P. (Danville, CA); Lerner, Scott A. (Corvallis, OR); Kuzmenko, Paul J. (Livermore, CA); Bennett, Charles L. (Livermore, CA)

2006-03-21T23:59:59.000Z

18

Electromagnetically induced grating with maximal atomic coherence  

SciTech Connect

We describe theoretically an atomic diffraction grating that combines an electromagnetically induced grating with a coherence grating in a double-{Lambda} atomic system. With the atom in a condition of maximal coherence between its lower levels, the combined gratings simultaneously diffract both the incident probe beam as well as the signal beam generated through four-wave mixing. A special feature of the atomic grating is that it will diffract any beam resonantly tuned to any excited state of the atom accessible by a dipole transition from its ground state.

Carvalho, Silvania A.; Araujo, Luis E. E. de [Instituto de Fisica ''Gleb Wataghin'', Universidade Estadual de Campinas, Campinas-SP, 13083-859 Sao Paulo (Brazil)

2011-10-15T23:59:59.000Z

19

NbTiN Based SIS Multilayer Structures for SRF Applications  

SciTech Connect

For the past three decades, bulk niobium has been the material of choice for SRF cavities applications. RF cavity performance is now approaching the theoretical limit for bulk niobium. For further improvement of RF cavity performance for future accelerator projects, Superconductor ? Insulator - Superconductor (SIS) multilayer structures (as recently proposed by Alex Gurevich) present the theoretical prospect to reach RF performance beyond bulk Nb, using thinly layered higher-Tc superconductors with enhanced Hc1. Jefferson Lab (JLab) is pursuing this approach with the development of NbTiN and AlN based multilayer SIS structures. This paper presents the results on the characteristics of NbTiN films and the first RF measurements on NbTiN-based multilayer structure on thick Nb films.

Valente, Anne-marie; Eremeev, Grigory; Phillips, H.; Reece, Charles; Spradlin, Joshua; Yang, Qiguang; Lukaszew, Rosa

2013-09-01T23:59:59.000Z

20

Immersion diffractometry for determining nanoscale grating pitch  

Science Journals Connector (OSTI)

The laser diffractometer is an effective instrument for calibrating pitch standard of a grating structure. A conventional diffractometer based on the Littrow configuration cannot...

Lu, Sheng-Hua; Tseng, Li-Cheng; Kao, Ching-Fen; Pan, Shang-Peng; Chang, Liang-Chih

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "grated analy sis" 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

Formal Support for Quantitative Analysis of Residual Risks in Safety-Critical Systems  

E-Print Network (OSTI)

and Effects Analysis (FMEA) and Fault-Tree Analy- sis (FTA) [16]. However, many of these techniques become

22

Fast global convergence of gradient methods for high-dimensional ...  

E-Print Network (OSTI)

trix recovery using nuclear norm regularization; and matrix decomposition. Overall, our analy- sis reveals interesting connections between statistical precision†...

2012-08-24T23:59:59.000Z

23

Heat treatment for reduction of surface roughness on holographic gratings  

Science Journals Connector (OSTI)

Controlled postdevelopment heat treatment of the photoresist polymer used in the preparation of holographic gratings has been shown to enhance the diffraction efficiency of gratings...

Rabady, Rabi; Frankstein, Dmitry; Avrutsky, Ivan

2003-01-01T23:59:59.000Z

24

Pitch-variable blazed grating consisting of freestanding silicon beams  

Science Journals Connector (OSTI)

Theoretical analysis is presented for a pitch-variable blazed grating which consists of freestanding silicon beams. The pitch-variable blazed grating is implemented by combining...

Wang, Yongjin; Kanamori, Yoshiaki; Hane, Kazuhiro

2009-01-01T23:59:59.000Z

25

Compact imaging spectrometer utilizing immersed gratings  

DOE Patents (OSTI)

A compact imaging spectrometer with an immersive diffraction grating that compensates optical distortions. The imaging spectrometer comprises an entrance slit for transmitting light, means for receiving the light and directing the light, an immersion grating, and a detector array. The entrance slit, the means for receiving the light, the immersion grating, and the detector array are positioned wherein the entrance slit transmits light to the means for receiving the light and the means for receiving the light directs the light to the immersion grating and the immersion grating receives the light and directs the light to the means for receiving the light, and the means for receiving the light directs the light to the detector array.

Chrisp, Michael P. (Danville, CA); Lerner, Scott A. (Corvallis, OR); Kuzmenko, Paul J. (Livermore, CA); Bennett, Charles L. (Livermore, CA)

2007-07-03T23:59:59.000Z

26

FDM Helmholtz modeling of finite grating and waveguide width effects on resonant subwavelength grating reflectivity.  

SciTech Connect

Resonant subwavelength gratings (RSGs) may be used as narrow-band wavelength and angular reflectors. Rigorous coupled wave analysis (RCWA) predicts 100% reflectivity at the resonant frequency of an incident plane wave from an RSG of infinite extent. For devices of finite extent or for devices illuminated with a finite beam, the peak reflectivity drops, coupled with a broadening of the peak. More complex numerical methods are required to model these finite effects. We have modeled finite devices and finite beams with a two-dimensional finite difference Helmholtz equation. The effect of finite grating aperture and finite beam size are investigated. Specific cases considered include Gaussian beam illumination of an infinite grating, Gaussian illumination of a finite grating, and plane wave illumination of an apertured grating. For a wide grating with a finite Gaussian beam, it is found that the reflectivity is an exponential function of the grating width. Likewise, for an apertured grating the reflectivity shows an exponential decay with narrowing aperture size. Results are compared to other methods, including plane wave decomposition of Gaussian beams using RCWA for the case of a finite input beam, and a semi-analytical techniques for the case of the apertured grating.

Kemme, Shanalyn A.; Peters, David William; Hadley, G. Ronald

2003-07-01T23:59:59.000Z

27

Grating enhanced solid-state laser amplifiers  

DOE Patents (OSTI)

A novel method and apparatus for suppressing ASE and parasitic oscillation modes in a high average power laser is introduced. Such an invention, as disclosed herein, uses diffraction gratings to increase gain, stored energy density, and pumping efficiency of solid-state laser gain media, such as, but not limited to rods, disks and slabs. By coupling predetermined gratings to solid-state gain media, such as crystal or ceramic laser gain media, ASE and parasitic oscillation modes can be effectively suppressed.

Erlandson, Alvin C. (Livermore, CA); Britten, Jerald A. (Clayton, CA)

2010-11-09T23:59:59.000Z

28

Electro-optic Phase Grating Streak Spectrometer  

SciTech Connect

The electro-optic phase grating streak spectrometer (EOPGSS) generates a time-resolved spectra equivalent to that obtained with a conventional spectrometer/streak camera combination, but without using a streak camera (by far the more expensive and problematic component of the conventional system). The EOPGSS is based on a phase, rather than an amplitude grating. Further, this grating is fabricated of electro-optic material such as, for example, KD*P, by either etching grooves into an E-O slab, or by depositing lines of the E-O material onto an optical flat. An electric field normal to the grating alters the materialís index of refraction and thus affects a shift (in angle) of the output spectrum. Ramping the voltage streaks the spectrum correspondingly. The streak and dispersion directions are the same, so a second (static, conventional) grating disperses the spectrum in the orthogonal direction to prevent different wavelengths from ďoverwritingĒ each other. Because the streaking is done by the grating, the streaked output spectrum is recorded with a time-integrating device, such as a CCD. System model, typical design, and performance expectations will be presented.

Goldin, F. J.

2012-08-02T23:59:59.000Z

29

Grating tuned unstable resonator laser cavity  

DOE Patents (OSTI)

An unstable resonator to be used in high power, narrow line CO.sub.2 pump lasers comprises an array of four reflectors in a ring configuration wherein spherical and planar wavefronts are separated from each other along separate optical paths and only the planar wavefronts are impinged on a plane grating for line tuning. The reflector array comprises a concave mirror for reflecting incident spherical waves as plane waves along an output axis to form an output beam. A plane grating on the output axis is oriented to reflect a portion of the output beam off axis onto a planar relay mirror spaced apart from the output axis in proximity to the concave mirror. The relay mirror reflects plane waves from the grating to impinge on a convex expanding mirror spaced apart from the output axis in proximity to the grating. The expanding mirror reflects the incident planar waves as spherical waves to illuminate the concave mirror. Tuning is provided by rotating the plane grating about an axis normal to the output axis.

Johnson, Larry C. (Princeton, NJ)

1982-01-01T23:59:59.000Z

30

Fabrication and characterization of the source grating for visibility improvement of neutron phase imaging with gratings  

SciTech Connect

The fabrication of gratings including metal deposition processes for highly neutron absorbing lines is a critical issue to achieve a good visibility of the grating-based phase imaging system. The source grating for a neutron Talbot-Lau interferometer is an array of Gadolinium (Gd) structures that are generally made by sputtering, photo-lithography, and chemical wet etching. However, it is very challenging to fabricate a Gd structure with sufficient neutron attenuation of approximately more than 20 {mu}m using a conventional metal deposition method because of the slow Gd deposition rate, film stress, high material cost, and so on. In this article, we fabricated the source gratings for neutron Talbot-Lau interferometers by filling the silicon structure with Gadox particles. The new fabrication method allowed us a very stable and efficient way to achieve a much higher Gadox filled structure than a Gd film structure, and is even more suitable for thermal polychromatic neutrons, which are more difficult to stop than cold neutrons. The newly fabricated source gratings were tested at the polychromatic thermal neutron grating interferometer system of HANARO at the Korea Atomic Energy Research Institute, and the visibilities and images from the neutron phase imaging system with the new source gratings were compared with those fabricated by a Gd deposition method.

Kim, Jongyul [Neutron Science Division, Korea Atomic Energy Research Institute, Daejeon 305-353 (Korea, Republic of); Nuclear and Quantum Engineering Department, Korea Advanced Institute of Science and Technology, Daejeon 305-701 (Korea, Republic of); Lee, Kye Hong; Lim, Chang Hwy; Kim, Taejoo [Neutron Science Division, Korea Atomic Energy Research Institute, Daejeon 305-353 (Korea, Republic of); Ahn, Chi Won [Nano Fusion Technology Division, National Nanofab Center, Daejeon 305-701 (Korea, Republic of); Cho, Gyuseong [Nuclear and Quantum Engineering Department, Korea Advanced Institute of Science and Technology, Daejeon 305-701 (Korea, Republic of); Lee, Seung Wook [School of Mechanical Engineering, Pusan National University, Pusan 609-735 (Korea, Republic of)

2013-06-15T23:59:59.000Z

31

Ultra-high density diffraction grating  

SciTech Connect

A diffraction grating structure having ultra-high density of grooves comprises an echellette substrate having periodically repeating recessed features, and a multi-layer stack of materials disposed on the echellette substrate. The surface of the diffraction grating is planarized, such that layers of the multi-layer stack form a plurality of lines disposed on the planarized surface of the structure in a periodical fashion, wherein lines having a first property alternate with lines having a dissimilar property on the surface of the substrate. For example, in one embodiment, lines comprising high-Z and low-Z materials alternate on the planarized surface providing a structure that is suitable as a diffraction grating for EUV and soft X-rays. In some embodiments, line density of between about 10,000 lines/mm to about 100,000 lines/mm is provided.

Padmore, Howard A.; Voronov, Dmytro L.; Cambie, Rossana; Yashchuk, Valeriy V.; Gullikson, Eric M.

2012-12-11T23:59:59.000Z

32

Application of spherical gratings in synchrotron radiation spectroscopy  

SciTech Connect

The recent development in gracing incidence grating monochromator design is discussed and the performance limiting for such instruments are examined. Especially the aberrations of toroidal and spherical gratings are investigated using the optical path function concept. It is shown that large radius spherical gratings, which can be produced with better slope tolerances than aspherics, also yield smaller overall line curvature than toroids. Therefore, a new simple spherical grating monochromator design is proposed and its performance is analyzed.

Hogrefe, H.; Howells, M.R.; Hoyer, E.

1986-05-01T23:59:59.000Z

33

Nanoparticle-Enhanced Diffraction Gratings for Ultrasensitive Surface Plasmon Biosensing  

E-Print Network (OSTI)

Nanoparticle-Enhanced Diffraction Gratings for Ultrasensitive Surface Plasmon Biosensing Alastair W by the adsorption of gold nanoparticles onto gold diffraction gratings. An enhanced diffraction obtained in the grating to the localized surface plasmons in the gold nanoparticles. As a first example

34

A New Multilayer-Based Grating for Hard X-ray Grating Interferometry |  

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

The Most Detailed Picture Yet of a Key AIDS Protein The Most Detailed Picture Yet of a Key AIDS Protein Superconductivity with Stripes How HIV Infects Cells Simulating Deep Earthquakes in the Laboratory A "Sponge" Path to Better Catalysts and Energy Materials Science Highlights Archives: 2013 | 2012 | 2011 | 2010 2009 | 2008 | 2007 | 2006 2005 | 2004 | 2003 | 2002 2001 | 2000 | 1998 | Subscribe to APS Science Highlights rss feed A New Multilayer-Based Grating for Hard X-ray Grating Interferometry November 20, 2013 Bookmark and Share An image of the phase shift in the mouse kidney from a Bonse-Hart interferometer built utilizing the new micro-multilayer grating provides a projection view of the blood vessels. A new kind of x-ray multilayer grating that could open a pathway for high-sensitivity, hard x-ray phase contrast full-field imaging of large

35

A computational inverse diffraction grating problem  

E-Print Network (OSTI)

Mar 2, 2012 ... od and a variational (finite element) method have been developed in [3,4]. ... problems in diffractive optics, which is to design a grating structure that .... where the free-space quasiperiodic Green function is given ex- plicitly as.

2012-02-29T23:59:59.000Z

36

Progress in collective flow studies from the onset to Bevalac/SIS  

SciTech Connect

Collective flow in heavy ion collisions was first observed experimentally more than a decade ago at the Bevalac by the Plastic Ball collaboration. Although early calculations had suggested that measurement of the flow would place tight constraints on the nuclear equation of state, uncertainties in other input parameters of microscopic models, which also affect the flow, led to large ambiguities in the equation of state. This talk will discuss recent flow studies that attempt to overcome these difficulties. The EOS and FOPI experiments at the Bevalac and SIS accelerators have measured flow in the 200--2000 A-MeV bombarding energy range with better acceptance, particle identification, and systematics than was previously available. Meanwhile, programs at MSU and GANIL are studying the disappearance of flow around 50 A-MeV. Systematic comparison of these data with predictions of microscopic models is beginning to reduce the ambiguities in the extraction of physics quantities. Also, new directions in flow studies, such as the flow of produced particles and radial flow, offer the possibility of further information from flow studies. Recent accomplishments and new directions in flow studies are discussed, and areas where further study is needed are pointed out.

Lisa, M.A.

1995-03-01T23:59:59.000Z

37

Fluidized bed boiler having a segmented grate  

DOE Patents (OSTI)

A fluidized bed furnace (10) is provided having a perforate grate (9) within a housing which supports a bed of particulate material including some combustibles. The grate is divided into a plurality of segments (E2-E6, SH1-SH5, RH1-RH5), with the airflow to each segment being independently controlled. Some of the segments have evaporating surface imbedded in the particulate material above them, while other segments are below superheater surface or reheater surface. Some of the segments (E1, E7) have no surface above them, and there are ignitor combustors (32, 34) directed to fire into the segments, for fast startup of the furnace without causing damage to any heating surface.

Waryasz, Richard E. (Longmeadow, MA)

1984-01-01T23:59:59.000Z

38

Compact reflective imaging spectrometer utilizing immersed gratings  

DOE Patents (OSTI)

A compact imaging spectrometer comprising an entrance slit for directing light, a first mirror that receives said light and reflects said light, an immersive diffraction grating that diffracts said light, a second mirror that focuses said light, and a detector array that receives said focused light. The compact imaging spectrometer can be utilized for remote sensing imaging spectrometers where size and weight are of primary importance.

Chrisp, Michael P. (Danville, CA)

2006-05-09T23:59:59.000Z

39

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

40

Imaging Spectrometer Designs Utilizing Immersed Gratings With Accessible Entrance Slit  

DOE Patents (OSTI)

A compact imaging spectrometer comprises an entrance slit, a catadioptric lens with a mirrored surface, a grating, and a detector array. The entrance slit directs light to the mirrored surface of the catadioptric lens; the mirrored surface reflects the light back through the lens to the grating. The grating receives the light from the catadioptric lens and diffracts the light to the lens away from the mirrored surface. The lens transmits the light and focuses it onto the detector array.

Chrisp, Michael P. (Danville, CA); Lerner, Scott A. (Corvallis, OR)

2006-03-21T23:59:59.000Z

Note: This page contains sample records for the topic "grated analy sis" 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

Synthesis of all-pass filters by codirectional grating couplers  

Science Journals Connector (OSTI)

It is well known that soliton shapes result from reflectionless potentials. We propose a new technique for the synthesis of all-pass codirectional filter gratings that yields...

Peral, E; Capmany, J; Marti, J

1997-01-01T23:59:59.000Z

42

Abnormal spectral evolution of fiber Bragg gratings in hydrogenated fibers  

Science Journals Connector (OSTI)

We report the observation of abnormal spectral evolution in regenerated fiber Bragg gratings in hydrogenated BĖGe-codoped and standard telecom fiber with UV overexposure. The...

Liu, Y; Williams, J A R; Zhang, L; Bennion, I

2002-01-01T23:59:59.000Z

43

Enhanced type IIA gratings for high-temperature operation  

Science Journals Connector (OSTI)

The inscription of type IIA fiber Bragg gratings in standard boron-codoped germanosilicate fiber has been demonstrated to show marked differences from that reported in the literature....

Groothoff, Nathaniel; Canning, John

2004-01-01T23:59:59.000Z

44

Diffraction Gratings for High-Intensity Laser Applications  

SciTech Connect

The scattering of light into wavelength-dependent discrete directions (orders) by a device exhibiting a periodic modulation of a physical attribute on a spatial scale similar to the wavelength of light has been the subject of study for over 200 years. Such a device is called a diffraction grating. Practical applications of diffraction gratings, mainly for spectroscopy, have been around for over 100 years. The importance of diffraction gratings in spectroscopy for the measurement of myriad properties of matter can hardly be overestimated. Since the advent of coherent light sources (lasers) in the 1960's, applications of diffraction gratings in spectroscopy have further exploded. Lasers have opened a vast application space for gratings, and apace, gratings have enabled entirely new classes of laser systems. Excellent reviews of the history, fundamental properties, applications and manufacturing techniques of diffraction gratings up to the time of their publication can be found in the books by Hutley (1) and more recently Loewen and Popov (2). The limited scope of this chapter can hardly do justice to such a comprehensive subject, so the focus here will be narrowly limited to characteristics required for gratings suitable for high-power laser applications, and methods to fabricate them. A particular area of emphasis will be on maximally-efficient large-aperture gratings for short-pulse laser generation.

Britten, J

2008-01-23T23:59:59.000Z

45

Gratings for Increasing Solid-State Laser Gain and Efficiency  

SciTech Connect

We introduce new concepts for increasing the efficiency of solid state lasers by using gratings deposited on laser slabs or disks. The gratings improve efficiency in two ways: (1) by coupling out of the slab deleterious amplified spontaneous emission (ASE) and (2) by increasing the absorption efficiency of pump light. The gratings also serve as antireflective coatings for the extracting laser beam. To evaluate the potential for such coatings to improve laser performance, we calculated optical properties of a 2500 groove/mm, tantala-silica grating on a 1cm x 4cm x 8cm titanium-doped sapphire slab and performed ray-trace calculations for ASE and pump light. Our calculations show substantial improvements in efficiency due to grating ASE-coupling properties. For example, the gratings reduce pump energy required to produce a 0.6/cm gain coefficient by 9%, 20% and 35% for pump pulse durations of 0.5 {micro}s, 1{micro}s and 3{micro}s, respectively. Gratings also increase 532-nm pump-light absorption efficiency, particularly when the product slab overall absorption is small. For example, when the single-pass absorption is 1 neper, absorption efficiency increases from 66%, without gratings, to 86%, when gratings are used.

Erlandson, A C; Britten, J A; Bonlie, J D

2010-04-16T23:59:59.000Z

46

Nanoparticle diffraction gratings for DNA detection on photopatterned glass substrates  

E-Print Network (OSTI)

Sendroiu and R. M. Corn: Nanoparticle diffraction gratingsSendroiu and R. M. Corn: Nanoparticle diffraction gratingsthe principle of the nanoparticle-based DNA detection assay

Sendroiu, Luliana E; Corn, Robert M

2008-01-01T23:59:59.000Z

47

Fabrication and performance of blazed transmission gratings for x-ray astronomy  

E-Print Network (OSTI)

We have developed a new type of soft x-ray diffraction grating. This critical-angle transmission (CAT) grating combines the advantages of traditional transmission gratings (low mass, extremely relaxed alignment and flatness ...

Schattenburg, Mark Lee

48

Study on drying and combustion process in grate-CFB incinerator  

Science Journals Connector (OSTI)

The drying and combustion process in the combined grate and circulating fluidized bed (grate-CFB) municipal solid waste (MSW) incinerator was ... was proposed. A 260 t/d grate-CFB incinerator was modeled and the ...

QingHai Li; YanGuo Zhang; MeiQian ChenÖ

2009-05-01T23:59:59.000Z

49

Planar Bragg Gratings - Fabrication and Applications from Engineering to Quantum Information  

Science Journals Connector (OSTI)

Research on planar Bragg gratings will be described including: sensors for chemical and biological materials, on the use of gratings within cantilevers and ...

Smith, Peter G

50

ON THE GAGE FACTOR FOR OPTICAL FIBER GRATING STRAIN GAGES  

E-Print Network (OSTI)

of grating and fiber types. KEY WORDS: Fiber-Optic Gratings, Fiber-Optic Sensors, Strain Gage Factor 1 theoretical background. Then, in Section 3, we discuss measurement methods followed by the experimental tests and results in Section 4, before concluding in Section 5. 2. THEORETICAL BACKGROUND Consider an FBG fabricated

Park, Yong-Lae

51

Compact Catadioptric Imaging Spectrometer Designs Utilizing Immersed Gratings  

DOE Patents (OSTI)

An imaging spectrometer comprising an entrance slit for directing light, a lens that receives said light and reflects said light, a grating that defracts said light back onto said lens which focuses said light, and a detector array that receives said focused light. In one embodiment the grating has rulings immersed into a germanium surface.

Lerner, Scott A. (Livermore, CA)

2006-02-28T23:59:59.000Z

52

ALS Scientists Patent Technique To Dramatically Advance Grating-Based  

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

ALS Scientists Patent Technique To ALS Scientists Patent Technique To Dramatically Advance Grating-Based Spectroscopy ALS Scientists Patent Technique To Dramatically Advance Grating-Based Spectroscopy Print Tuesday, 29 January 2013 16:28 Gratings - optical elements used to separate light in spectroscopy applications - have been in use since the early 19th century. Developments in the late 19th century led to the manufacture of gratings by highly precise ruling with a diamond onto a metallic surface. Many gratings are still produced today using the same technique. Holographic methods and ion etching are also used, but all of these techniques result in gratings that contain significant imperfections, which limits resolution. Watch a video about this topic... However, a new type of ultra-high diffraction grating recently patented by members of the ALS Experimental Systems Group (ESG), working with colleagues from Berkeley Lab's Center for X-ray Optics, stands to revolutionize the resolution capabilities of soft x-ray spectroscopy. The key to the new technique is the production of a near atomically perfect substrate, using the anisotropic etching of silicon.

53

ALS Scientists Patent Technique To Dramatically Advance Grating-Based  

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

ALS Scientists Patent Technique To Dramatically ALS Scientists Patent Technique To Dramatically Advance Grating-Based Spectroscopy ALS Scientists Patent Technique To Dramatically Advance Grating-Based Spectroscopy Print Gratings - optical elements used to separate light in spectroscopy applications - have been in use since the early 19th century. Developments in the late 19th century led to the manufacture of gratings by highly precise ruling with a diamond onto a metallic surface. Many gratings are still produced today using the same technique. Holographic methods and ion etching are also used, but all of these techniques result in gratings that contain significant imperfections, which limits resolution. Watch a video about this topic... However, a new type of ultra-high diffraction grating recently patented by members of the ALS Experimental Systems Group (ESG), working with colleagues from Berkeley Lab's Center for X-ray Optics, stands to revolutionize the resolution capabilities of soft x-ray spectroscopy. The key to the new technique is the production of a near atomically perfect substrate, using the anisotropic etching of silicon.

54

Increase of the grating coupler bandwidth with a graphene overlay  

SciTech Connect

We present theoretical and experimental results that demonstrate an increase in the grating bandwidth by placing a graphene on the chip. A focusing subwavelength grating with coupling efficiency of ?4.3?dB and 1?dB bandwidth of ?60?nm was demonstrated. After a graphene sheet was transferred onto the chip, the maximum 1?dB bandwidth was increased to ?72?nm. Experimental results are consistent with the calculated graphene induced waveguide refractive index and dispersion changes, and the bandwidth improvement may be attributed to the reduction of grating dispersion. This study may be of interest for graphene-on-silicon photonic integrated circuit applications.

Cheng, Zhenzhou; Li, Zhen; Xu, Ke; Tsang, Hon Ki, E-mail: hktsang@ee.cuhk.edu.hk [Department of Electronic Engineering, The Chinese University of Hong Kong, Shatin (Hong Kong)

2014-03-17T23:59:59.000Z

55

Measures to Reduce Grate Material Wear in Fixed-Bed Combustion  

Science Journals Connector (OSTI)

In a grate furnace the fuel forms a burning bed resting on a grate. ... The grate is typically sloping from the fuel inlet to the ash pit and the fuel is transported by reciprocating or vibrating movements of the grate or by adjusting the slope to allow the fuel to be transported by gravity (fixed grates). ... The symbol (◊) is the measured temperature between the grate and the bed during burn-out of wood char(15) and the symbol (+) is the measured temperature inside a grate rod during combustion of wood chips. ...

Sven Hermansson; Henrik Thunman

2011-03-15T23:59:59.000Z

56

Grate assembly for fixed-bed coal gasifier  

DOE Patents (OSTI)

A grate assembly for a coal gasifier of a moving-bed or fixed-bed type is provided for crushing agglomerates of solid material such as clinkers, tailoring the radial distribution of reactant gases entering the gasification reaction zone, and control of the radial distribution of downwardly moving solid velocities in the gasification and combustion zone. The clinker crushing is provided by pinching clinkers between vertically oriented stationary bars and angled bars supported on the upper surface of a rotating conical grate. The distribution of the reactant gases is provided by the selective positioning of horizontally oriented passageways extending through the grate. The radial distribution of the solids is provided by mounting a vertically and generally radially extending scoop mechanism on the upper surface of the grate near the apex thereof.

Notestein, John E. (Morgantown, WV)

1993-01-01T23:59:59.000Z

57

Design of a high index contrast arrayed waveguide grating  

E-Print Network (OSTI)

Arrayed waveguide gratings (AWGs) are useful structures for the implementation of wavelength division multiplexing. The AWG consists of an input splitter, a dispersive waveguide array which creates the wavelength demultiplexing ...

Lang, Ryan N. (Ryan Nathan)

2003-01-01T23:59:59.000Z

58

Tunable, oblique incidence resonant grating filter for telecommunications  

Science Journals Connector (OSTI)

We have designed a tunable, oblique-incidence resonant grating filter that covers the C band as an add-drop device for incident TE-polarized light. We tune the filter by tilting a...

Niederer, Guido; Herzig, Hans Peter; Shamir, Joseph; Thiele, Hans; Schnieper, Marc; Zschokke, Christian

2004-01-01T23:59:59.000Z

59

Photo-Thermal Effects in Fiber Bragg Gratings  

Science Journals Connector (OSTI)

The photo-thermal effect describes the absorption of light and a change in grating characteristics via dn/dT, which can mask fast non-linear optical effects. The effect is...

Littler, Ian C; Grujic, Thomas; Eggleton, Benjamin J

60

Compact Refractive Imaging Spectrometer Designs Utilizing Immersed Gratings  

DOE Patents (OSTI)

A compact imaging spectrometer comprising an entrance slit for directing light, a first means for receiving the light and focusing the light, an immersed diffraction grating that receives the light from the first means and defracts the light, a second means for receiving the light from the immersed diffraction grating and focusing the light, and an image plane that receives the light from the second means

Lerner, Scott A. (Livermore, CA); Bennett, Charles L. (Livermore, CA); Bixler, Jay V. (Oakland, CA); Kuzmenko, Paul J. (Livermore, CA); Lewis, Isabella T. (San Jose, CA)

2005-07-26T23:59:59.000Z

Note: This page contains sample records for the topic "grated analy sis" 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

Image-line voltage controlled oscillators and grating antennas  

E-Print Network (OSTI)

IMAGE-LINE VOLTAGE CONTROLLED OSCILLATORS AND GRATING ANTENNAS A Thesis by ALEXANDER MacDONALD KIRK Submitted to the Office of Graduate Studies of Texas ABM University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE May 1991 Major Subject: Electrical Engineering IMAGE-LINE VOLTAGE CONTROLLED OSCILLATORS AND GRATING ANTENNAS A Thesis by ALEXANDER MacDONALD KIRK Approved as to style and content by: Kai Chang (Chair of Committee) Robert D. Nevels...

Kirk, Alexander MacDonald

1991-01-01T23:59:59.000Z

62

Low efficiency gratings for 3rd harmonic diagnostics applications  

SciTech Connect

The baseline design of the National Ignition Facility (NIF) calls for sampling gratings to provide third-harmonic energy diagnostics in the highly constrained area of the target chamber. These 40 {times} 4O cm transmission gratings are to diffract at (order +1) nominally 0.3% of the incident 351 run light at a small angle on to a focusing mirror and into a calorimeter. The design calls for a plane grating of 500 lines/mm, and approximately 30 run deep, etched into a fused silica focusing lens and subsequently overcoated with a solgel anti reflective coating. Gratings of similar aperture and feature size have been produced for other applications by ion etching processes, but, in an effort to reduce substantially the cost of such optics, we are studying the feasibility of making these gratings by wet chemical etching techniques. Experimentation with high-quality fused silica substrates on 5 and 15 cm. scale has led to a wet etching process which can meet the design goals and which offers no significant scaleup barriers to full sized optics. The grating is produced by holographic exposure and a series of processing steps using only a photoresist mask and a final hydrofluoric acid etch. Gratings on 15 cm diameter test substrates exhibit absolute diffraction efficiencies from 0.2--0.4% with a standard deviation of about 15% of the mean over the full aperture. The efficiency variation is due to variation in linewidth caused by spatial nonuniformities in exposure energy. Uniformity improvements can be realized by using a smaller, more uniform portion of the exposure beam and exposing for longer times. The laser damage threshold for these gratings has been measured at LLNL and found to be identical to that of the fused silica substrate.

Britten, J.A.; Boyd, R.D.; Perry, M.D.; Shore, B.W.; Thomas, I.M.

1995-08-09T23:59:59.000Z

63

Use of dual-grating sensors formed by different types of fiber Bragg gratings for simultaneous temperature and strain measurements  

Science Journals Connector (OSTI)

We report on a systematic investigation of the dependence of both temperature and strain sensitivities on the fiber Bragg grating type, including the well-known Type I, Type IIA, and a...

Shu, Xuewen; Zhao, Donghui; Zhang, Lin; Bennion, Ian

2004-01-01T23:59:59.000Z

64

Town Known for First Thanksgiving Grateful for Energy Savings | Department  

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

Town Known for First Thanksgiving Grateful for Energy Savings Town Known for First Thanksgiving Grateful for Energy Savings Town Known for First Thanksgiving Grateful for Energy Savings November 22, 2011 - 3:55pm Addthis Since January, when energy efficiency improvements were made to Memorial Hall, the civic center for the Plymouth, Mass., community, the building's energy savings have been nearly $1,200 per month. | Photo courtesy of the city of Plymouth. Since January, when energy efficiency improvements were made to Memorial Hall, the civic center for the Plymouth, Mass., community, the building's energy savings have been nearly $1,200 per month. | Photo courtesy of the city of Plymouth. Chris Galm Marketing & Communications Specialist, Office of Energy Efficiency & Renewable Energy What does this project do?

65

Applications of laser-induced gratings to spectroscopy and dynamics  

SciTech Connect

This program has traditionally emphasized two principal areas of research. The first is the spectroscopic characterization of large-amplitude motion on the ground-state potential surface of small, transient molecules. The second is the reactivity of carbonaceous clusters and its relevance to soot and fullerene formation in combustion. Motivated initially by the desire to find improved methods of obtaining stimulated emission pumping (SEP) spectra of transients, most of our recent work has centered on the use of laser-induced gratings or resonant four-wave mixing in free-jet expansions. These techniques show great promise for several chemical applications, including molecular spectroscopy and photodissociation dynamics. The author describes recent applications of two-color laser-induced grating spectroscopy (LIGS) to obtain background-free SEP spectra of transients and double resonance spectra of nonfluorescing species, and the use of photofragment transient gratings to probe photodissociation dynamics.

Rohlfing, E.A. [Sandia National Laboratories, Livermore, CA (United States)

1993-12-01T23:59:59.000Z

66

Silicon buried gratings for dielectric laser electron accelerators  

SciTech Connect

This paper describes design and simulations of dielectric laser electron accelerators that achieve Gigavolt-per-meter (GV/m) accelerating gradients and wide electron channels (>1??m). The accelerator design is based on a silicon buried grating structure that enables flexible phase synchronization, large electron channel fields, and low standing-wave ratio in the material. This design increases the accelerating gradients to more than double those of reported quartz grating accelerators, thereby reducing the input laser fluence by 60% for the same accelerating gradient. With a 100 fs pulsed laser, our silicon buried gratings can achieve a maximum gradient of 1.1 GV/m, indicating that these accelerators have potential for numerous electron-accelerator applications.

Chang, Chia-Ming, E-mail: cachang@alumni.stanford.edu [Bell Labs, Alcatel-Lucent, 791 Holmdel Road, Holmdel, New Jersey 07733 (United States); Solgaard, Olav [E. L. Ginzton Lab., Stanford University, Stanford, California 94305 (United States)

2014-05-05T23:59:59.000Z

67

Development of Fiber Bragg Grating Strain, Thermal, and Magnetic Sensors for Smart Structure Applications  

E-Print Network (OSTI)

fiber Bragg gratings,Ē Troutdale, OR, USA, 1996, pp. 24-in AD072 fibercore fiber,Ē Troutdale, OR, USA, 1998, pp. 79-

Emmons, Michael

2012-01-01T23:59:59.000Z

68

Time resolved measurements of gratings photo-induced by femtosecond pulses in a  

E-Print Network (OSTI)

gratings with suppressed cladding modes made in SMF-28 with a femtosecond IR laser and a phase mask," IEEE on the formation of gratings photo-induced by femtosecond laser pulses in SF59 glass. Depending on the number. We demonstrate that the grating formation is not instantaneous and is produced by laser

Paris-Sud XI, Université de

69

Merged vector gratings recorded in a photocrosslinkable polymer liquid crystal film for polarimetry  

SciTech Connect

A merged vector grating, which is holographically fabricated in an anisotropic medium by irradiation with interference light with intensity modulation and polarization modulation, was designed to detect the polarization of light. The merged vector grating is recorded by the interference of two elliptically polarized beams with equal intensities, parallel azimuths, equal ellipticities, and different directions of rotation. We clarified theoretically that the Stokes parameters of the incident light beam are described by the diffraction efficiency of the merged vector grating. Also, to apply this property to formation of a polarimeter without any moving parts or mechanisms, two merged vector gratings with different grating vectors were recorded in a photocrosslinkable polymer liquid crystal film by angle-multiplexed holography. By investigation of the diffraction properties of the gratings obtained, we demonstrated the applicability of the merged vector gratings for use in polarimetry.

Sasaki, Tomoyuki, E-mail: sasaki-tomoy@vos.nagaokaut.ac.jp; Wada, Takumi; Noda, Kohei; Ono, Hiroshi [Department of Electrical Engineering, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188 (Japan); Kawatsuki, Nobuhiro [Department of Materials Science and Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280 (Japan)

2014-01-14T23:59:59.000Z

70

Grating monochromator for electron cyclotron resonance ion source operation  

SciTech Connect

Recently, we started to observe optical line spectra from an ECR plasma using a grating monochromator with a photomultiplier. The light intensity of line spectrum from the ECR plasma had a strong correlation with ion beam intensity measured by a magnetic mass analyzer. This correlation is a significant information for beam tuning because it allows the extraction of the desired ion species from the ECR plasma. Separation of ion species of the same charge to mass ratio with an electromagnetic mass analyzer is known to be an exceptionally complex process, but this research gives new insights into its simplification. In this paper, the grating monochromator method for beam tuning of a Hyper-ECR ion source as an injector for RIKEN azimuthal varying field (AVF) cyclotron is described.

Muto, Hideshi [Center of General Education, Tokyo University of Science, Suwa, 5000-1 Toyohira, Chino Nagano 391-0292 (Japan)] [Center of General Education, Tokyo University of Science, Suwa, 5000-1 Toyohira, Chino Nagano 391-0292 (Japan); Ohshiro, Yukimitsu; Yamaka, Shouichi; Watanabe, Shin-ichi; Yamaguchi, Hidetoshi; Shimoura, Susumu [Center for Nuclear Study, University of Tokyo, 2-1 Hirosawa, Riken Campus, Wako Saitama 351-0198 (Japan)] [Center for Nuclear Study, University of Tokyo, 2-1 Hirosawa, Riken Campus, Wako Saitama 351-0198 (Japan); Oyaizu, Michihiro; Kase, Masayuki [RIKEN Nishina Center for Accelerator-Based Science, Wako Saitama 351-0198 (Japan)] [RIKEN Nishina Center for Accelerator-Based Science, Wako Saitama 351-0198 (Japan); Kubono, Shigeru [Center for Nuclear Study, University of Tokyo, 2-1 Hirosawa, Riken Campus, Wako Saitama 351-0198 (Japan) [Center for Nuclear Study, University of Tokyo, 2-1 Hirosawa, Riken Campus, Wako Saitama 351-0198 (Japan); RIKEN Nishina Center for Accelerator-Based Science, Wako Saitama 351-0198 (Japan); Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000 (China); Hattori, Toshiyuki [Heavy Ion Cancer Therapy Center, National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage Chiba 263-855 (Japan)] [Heavy Ion Cancer Therapy Center, National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage Chiba 263-855 (Japan)

2013-07-15T23:59:59.000Z

71

A 6-beam combiner using superimposed volume index holographic gratings  

E-Print Network (OSTI)

splitter, MR: mirror, NDF: neutral density filter?????.??.44 Figure 21. The fringe patterns by interference of each pair of beams. The number below the images notes the numbers of two input beams??.46 Figure 22. Schematic diagrams of ramp... the light source is expanded and collimated, and is split into two beams. The incident angle of the reference wave is fixed and the rotation of two mirrors changes the incident angles of the object waves so that the hologram gratings have different Bragg...

Yum, HoNam

2005-11-01T23:59:59.000Z

72

Echelle grating multi-order imaging spectrometer utilizing a catadioptric lens  

DOE Patents (OSTI)

A cryogenically cooled imaging spectrometer that includes a spectrometer housing having a first side and a second side opposite the first side. An entrance slit is on the first side of the spectrometer housing and directs light to a cross-disperser grating. An echelle immersions grating and a catadioptric lens are positioned in the housing to receive the light. A cryogenically cooled detector is located in the housing on the second side of the spectrometer housing. Light from the entrance slit is directed to the cross-disperser grating. The light is directed from the cross-disperser grating to the echelle immersions grating. The light is directed from the echelle immersions grating to the cryogenically cooled detector on the second side of the spectrometer housing.

Chrisp, Michael P; Bowers, Joel M

2014-05-27T23:59:59.000Z

73

Apparatus comprising a tunable nanomechanical near-field grating and method for controlling far-field emission  

DOE Patents (OSTI)

A tunable nanomechanical near-field grating is disclosed which is capable of varying the intensity of a diffraction mode of an optical output signal. The tunable nanomechanical near-field grating includes two sub-gratings each having line-elements with width and thickness less than the operating wavelength of light with which the grating interacts. Lateral apertures in the two sub-gratings are formed from the space between one line-element of the first sub-grating and at least one line-element of the second sub-grating. One of the sub-gratings is capable of motion such that at least one of aperture width and aperture depth changes, causing a perturbation to the near-field intensity distribution of the tunable nanomechanical near-field grating and a corresponding change to the far-field emission of thereof.

Carr, Dustin Wade (Albuquerque, NM); Bogart, Gregory Robert (Corrales, NM)

2007-02-06T23:59:59.000Z

74

Compact Reflective Imaging Spectrometer Design Utilizing An Immersed Grating And Anamorphic Mirror  

DOE Patents (OSTI)

A compact imaging spectrometer comprising an entrance slit, an anamorphic mirror, a grating, and a detector array. The entrance slit directs light to the anamorphic mirror. The anamorphic mirror receives the light and directs the light to the grating. The grating receives the light from the anamorphic mirror and defracts the light back onto the anamorphic mirror. The anamorphic mirror focuses the light onto a detector array.

Lerner, Scott A. (Corvalis, OR)

2006-01-10T23:59:59.000Z

75

Bulk photovoltaic effect and photorefractive grating formation in lithium niobate with picosecond light pulses  

Science Journals Connector (OSTI)

I investigated photorefractive grating formation in materials exhibiting the bulk photovoltaic effect on illumination with weak, very short light pulses. For a light pulse shorter...

Okamura, Hideki

2001-01-01T23:59:59.000Z

76

Thermal hypersensitisation and grating evolution in Ge-doped optical fibre  

Science Journals Connector (OSTI)

Low temperature (sub 1000įC) thermal hypersensitisation is reported in germanosilicate optical waveguides. Gratings are written using a CW 266nm laser source. In contrast to laser...

SÝrensen, H; Canning, J; Kristensen, M

2005-01-01T23:59:59.000Z

77

Optical power transversely scattered from fiber Bragg gratings:?far-field measurements and modeling  

Science Journals Connector (OSTI)

Far-field properties of the optical power scattered from type IIA Bragg gratings photowritten within high-N.A. germanosilicate fibers have been studied under various experimental...

Pureur, D; Martinelli, G; Bernage, P; Niay, P; Douay, M; Monerie, M

1997-01-01T23:59:59.000Z

78

All-nanoparticle concave diffraction grating fabricated by self-assembly onto magnetically-recorded templates  

Science Journals Connector (OSTI)

Using the enormous magnetic field gradients present near the surface of magnetic recording media, we assemble diffraction gratings with lines consisting entirely of self-assembled...

Ye, L; Terry, B; Mefford, O T; Rinaldi, C; Crawford, T M

2013-01-01T23:59:59.000Z

79

Comparing plasmonic and dielectric gratings for absorption enhancement in thin-film organic solar cells  

Science Journals Connector (OSTI)

We theoretically investigate and compare the influence of square silver gratings and one-dimensional photonic crystal (1D PC) based nanostructures on the light absorption of organic...

Le, Khai Q; Abass, Aimi; Maes, Bjorn; Bienstman, Peter; Alý, Andrea

2012-01-01T23:59:59.000Z

80

Plasmonic gratings for enhanced light-trapping in thin-film organic solar cells  

Science Journals Connector (OSTI)

We discuss optimized silver gratings to enhance absorption in organic solar cells. The enhancement is attributed to generated surface plasmon (SP) polaritons and localized SP...

Le, Khai Q; Alý, Andrea

Note: This page contains sample records for the topic "grated analy sis" 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

Broadband light absorption enhancement in polymer photovoltaics using metal nanowall gratings as transparent electrodes  

SciTech Connect

The authors investigate light absorption in organic solar cells in which indium tin oxide (ITO) is replaced by a new metallic architecture (grating) as a transparent electrode. Different from typical metal nanowire gratings, our gratings consist of metal nanowalls with nanoscale footprint and (sub)microscale height [Adv. Mater. 23, 2469 (2011)], thus ensuring high optical transmittance and electrical conductivity. Simulations reveal that a broadband and polarization-insensitive light absorption enhancement is achieved via two mechanisms, when such silver nanowall gratings are employed in P3HT:PCBM based solar cells. Overall absorption enhanced by ~23% compared to a reference cell with ITO electrode.

Ye, Zhuo; Chaudhary, Sumit; Kuang, Ping; Ho, Kai-Ming

2012-05-15T23:59:59.000Z

82

E-Print Network 3.0 - advanced bragg gratings Sample Search Results  

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

Bragg grating in the cavity... . Hellstrm, V. Pasiskevicius, and F. Laurell, "Widely tunable Yb:KYW laser with a volume Bragg ... Source: Van Stryland, Eric - School of Optics...

83

Cathodoluminescence of Cd4SiS6?, Cd4SiSe6?, and Si-Doped CdS, CdSe, and CdTe Crystals  

Science Journals Connector (OSTI)

CdS, CdSe, and CdTe single crystals were vapor-phase-doped with the corresponding silicon chalcogenides under nearly...4SiS6and Cd4SiSe6crystals were measured. Metastable, sphalerite CdS?Si? and CdSe?Si? films we...

I. N. Odin; M. V. Chukichev; V. A. Ivanov; M. E. Rubina

2001-05-01T23:59:59.000Z

84

Inscription of Thermally Durable Type IIA Gratings in B/Ge-codoped Optical Fibres Using 248nm, 500fs Radiation  

Science Journals Connector (OSTI)

Results on the inscription of Type IIA Bragg gratings in B-germanosilicate fibres using 248nm, 500fs laser radiation are presented. The gratings recorded exhibit index changes ?n?10-3,...

Violakis, George; Konstantaki, Maria; Pissadakis, Stavros

85

998 JOURNAL OF MICROELECTROMECHANICAL SYSTEMS, VOL. 13, NO. 6, DECEMBER 2004 Analog Piezoelectric-Driven Tunable Gratings  

E-Print Network (OSTI)

actuation, as predicted by device modeling. The actuators demonstrate a piezo- electric 31 coefficient as "digital": for example, the Polychromator [1], the Grating Light Valve [2], the MEMS Compound Grating [3

Kim, Sang-Gook

86

Femtosecond laser-inscribed fiber Bragg gratings for strain monitoring in power cables of offshore wind turbines  

Science Journals Connector (OSTI)

A fiber Bragg grating sensor system used for monitoring the effects of strain on the power cable of an offshore wind turbine is presented. The Bragg grating structure was inscribed...

Burgmeier, JŲrg; Schippers, Wolfgang; Emde, Nico; Funken, Peter; Schade, Wolfgang

2011-01-01T23:59:59.000Z

87

The Constellation-X RGS options: Raytrace Modeling of the Off-plane Gratings  

E-Print Network (OSTI)

The Constellation-X RGS options: Raytrace Modeling of the Off-plane Gratings K.A. Flanagan, J The Reflection Grating Spectrometer of the Constellation-X mission has two strong candidate configurations resolving powers in excess of 1000 (defined with half-energy width) are achievable for sufficiently long

88

Shaping of Thin Grazing-Incidence Reflection Grating Substrates via Magnetorheological Finishing  

E-Print Network (OSTI)

for sub-arcsecond reflection optics. Keywords: x-ray optics, Constellation-X, reflection gratings, thin, such as Constellation-X,1 rely on grazing-incidence reflection gratings to provide the necessary high diffraction efficiency and dispersion for soft x-ray photons in the energy range of approximately 0.25 - 2.0 keV (0.6 - 5

89

Optimizing and characterizing grating efficiency for a soft X-ray emission spectrometer  

Science Journals Connector (OSTI)

The efficiency of soft X-ray diffraction gratings is examined using theoretical calculations with new open-source software, and insights to design a high-performance emission spectrometer are applied. The calculated and measured efficiencies of real-world gratings are compared, and discrepancies are explained by incorporating real-world effects into the calculations.

Boots, M.

2013-02-06T23:59:59.000Z

90

EDFA Gain Flattening Using Long-Period Fibre Gratings Based on the Electric Arc Technique  

E-Print Network (OSTI)

of new stresses during the electric arc discharges as the main mechanism for their formation [5]. #12EDFA Gain Flattening Using Long-Period Fibre Gratings Based on the Electric Arc Technique O. Fraz√£o of the long-period fibre grating is based on the electric arc technique. 1. Introduction. The gain flattening

Haddadi, Hamed

91

Plasmonic backcontact grating for P3HT:PCBM organic solar cells enabling strong optical  

E-Print Network (OSTI)

Plasmonic backcontact grating for P3HT:PCBM organic solar cells enabling strong optical absorption organic solar cells we propose and demonstrate numerically plasmonic backcontact grating architectures. Simon, L. Escoubas, P. Torchio, J. L. Rouzo, and S. Vedraine, "Light harvesting in organic solar cells

Demir, Hilmi Volkan

92

Study on Characteristics of Ultra-Long-Period Fiber Gratings Written by High-Frequency CO2 Laser Pulses  

Science Journals Connector (OSTI)

A novel ultra-long-period fiber grating with periods of up to several millimeters induced by high-frequency

Zhu, Tao; Rao, Yunjiang; Mo, Qiu-Ju

93

A simple scanning spectrometer based on a stretchable elastomeric reflective grating  

SciTech Connect

We report a scanning optical spectrometer based on the use of a stretchable elastomeric reflective grating. The grating is obtained by supersonic cluster beam implantation of silver nanoparticles on polydimethylsiloxane previously grooved by molding to create a replica of a commercial digital versatile disk grating. The use of a stretchable grating allows the spectrometer spanning the whole optical wavelength range by solely extending the diffraction element by more than 100% of its original dimensions. The stretchable reflective optical grating shows excellent performances and stability upon thousands of stretching cycles. The use of this elastomeric element makes the optical layout and the mechanics of the spectrometer extremely simple and advantageous for those applications where spectral resolution is not a major requirement. As a proof of principle, we present the absorption spectrum of Rhodamine B in solution obtained by our spectrometer and compared to commercial instruments.

Ghisleri, C.; Milani, P., E-mail: paolo.milani@mi.infn.it [CIMAINA and Dipartimento di Fisica, Universitŗ di Milano, via Celoria 16, 20133 Milano (Italy); WISE srl, Piazza Duse 2, 20122 Milano (Italy); Potenza, M. A. C.; Bellacicca, A. [CIMAINA and Dipartimento di Fisica, Universitŗ di Milano, via Celoria 16, 20133 Milano (Italy); Ravagnan, L. [WISE srl, Piazza Duse 2, 20122 Milano (Italy)

2014-02-10T23:59:59.000Z

94

Flexible organic solar cells including efficiency enhancing grating structures  

Science Journals Connector (OSTI)

In this work, a new method for the fabrication of organic solar cells containing functional light-trapping nanostructures on flexible substrates is presented. Polyimide is spin-coated on silicon support substrates, enabling standard micro- and nanotechnology fabrication techniques, such as photolithography and electron-beam lithography, besides the steps required for the bulk-heterojunction organic solar cell fabrication. After the production steps, the solar cells on polyimide are peeled off the silicon support substrates, resulting in flexible devices containing nanostructures for light absorption enhancement. Since the solar cells avoid using brittle electrodes, the performance of the flexible devices is not affected by the peeling process. We have investigated three different nanostructured grating designs and conclude that gratings with a 500?nm pitch distance have the highest light-trapping efficiency for the selected active layer material (P3HT:PCBM), resulting in an enhancement of about 34% on the solar cell efficiency. The presented method can be applied to a large variety of flexible nanostructured devices in future applications.

Roana Melina de Oliveira Hansen; Yinghui Liu; Morten Madsen; Horst-G?nter Rubahn

2013-01-01T23:59:59.000Z

95

Transmission Grating Spectrometer for Constellation-X White paper response to NASA solicitation 210S-GBG-06-001  

E-Print Network (OSTI)

1 Transmission Grating Spectrometer for Constellation-X White paper response to NASA solicitation proposes a transmission grating spectrometer to provide high spectral resolution at low energies, extending down below 0.2 keV. The transmission grating is blazed, concentrating the energy among a single set

Heilmann, Ralf

96

2346 IEEE PHOTONICS TECHNOLOGY LETTERS, VOL. 17, NO. 11, NOVEMBER 2005 Polarization Properties of Long-Period Gratings  

E-Print Network (OSTI)

-photon absorption mechanism. Due to energy deposition in the fiber cladding, such gratings are similar to those fabricated by CO2 laser induced heating, mechanical pres- sure, or electric arc. We found that these gratings exhibit significant polarization properties. Index Terms--Gratings, laser excitation, neodimiun : glass

Nikogosyan, David N.

97

Mathematical Modeling and Experimental Study of Biomass Combustion in a Thermal 108 MW Grate-Fired Boiler  

E-Print Network (OSTI)

Mathematical Modeling and Experimental Study of Biomass Combustion in a Thermal 108 MW Grate, the noncontinuous biomass feeding and grate movement, the combustion instabilities inside the fuel bed used to fire biomass for heat and power production. However, grate-firing systems are often reported

Rosendahl, Lasse

98

High efficiency multilayer blazed gratings for EUV and soft X-rays: Recent developments  

SciTech Connect

Multilayer coated blazed gratings with high groove density are the best candidates for use in high resolution EUV and soft x-ray spectroscopy. Theoretical analysis shows that such a grating can be potentially optimized for high dispersion and spectral resolution in a desired high diffraction order without significant loss of diffraction efficiency. In order to realize this potential, the grating fabrication process should provide a perfect triangular groove profile and an extremely smooth surface of the blazed facets. Here we report on recent progress achieved at the Advanced Light Source (ALS) in fabrication of high quality multilayer coated blazed gratings. The blazed gratings were fabricated using scanning beam interference lithography followed by wet anisotropic etching of silicon. A 200 nm period grating coated with a Mo/Si multilayer composed with 30 bi-layers demonstrated an absolute efficiency of 37.6percent in the 3rd diffraction order at 13.6 nm wavelength. The groove profile of the grating was thoroughly characterized with atomic force microscopy before and after the multilayer deposition. The obtained metrology data were used for simulation of the grating efficiency with the vector electromagnetic PCGrate-6.1 code. The simulations showed that smoothing of the grating profile during the multilayer deposition is the main reason for efficiency losses compared to the theoretical maximum. Investigation of the grating with cross-sectional transmission electron microscopy revealed a complex evolution of the groove profile in the course of the multilayer deposition. Impact of the shadowing and smoothing processes on growth of the multilayer on the surface of the sawtooth substrate is discussed.

Voronov, Dmitriy; Ahn, Minseung; Anderson, Erik; Cambie, Rossana; Chang, Chih-Hao; Goray, Leonid; Gullikson, Eric; Heilmann, Ralf; Salmassi, Farhad; Schattenburg, Mark; Warwick, Tony; Yashchuk, Valeriy; Padmore, Howard

2011-07-26T23:59:59.000Z

99

Nanomechanical near-field grating apparatus and acceleration sensor formed therefrom  

DOE Patents (OSTI)

A nanomechanical near-field grating device is disclosed which includes two sub-gratings vertically spaced by a distance less than or equal to an operating wavelength. Each sub-grating includes a plurality of line-elements spaced apart by a distance less than or equal to the operating wavelength. A light source (e.g., a VCSEL or LED) can provide light at the operating wavelength for operation of the device. The device can operate as an active grating, with the intensity of a reflected or transmitted portion of the light varying as the relative positions of the sub-gratings are controlled by an actuator. The device can also operate as a passive grating, with the relative positions of the sub-gratings changing in response to an environmentally-induced force due to acceleration, impact, shock, vibration, gravity, etc. Since the device can be adapted to sense an acceleration that is directed laterally or vertically, a plurality of devices can be located on a common substrate to form a multi-axis acceleration sensor.

Carr, Dustin Wade (Albuquerque, NM); Bogart, Gregory Robert (Corrales, NM); Keeler, Bianca E. N. (Albuquerque, NM)

2008-03-04T23:59:59.000Z

100

High-efficiency, dielectric multilayer gratings optimized for manufacturability and laser damage threshold  

SciTech Connect

Ultrashort pulse, high-intensity lasers offer new opportunities for the study of light-matter interaction and for inertial confinement fusion. A 100 Terawatt laser operating 400 fs and 1.053 {mu}m is operational at LLNL, and a 1000 Terawatt (Petawatt) laser will come online in early 1996. These lasers use large-aperture (40 cm and 94 cm diameter, respectively) diffraction gratings to compress the amplified laser pulse. At present, hologrphically produced, gold overcoated photoresist gratings are used: these gratings represent the fuse in the laser chain. Higher laser damage thresholds and higher diffraction efficiencies are theoretically possible with multilayer dielectric gratings (MDG`s). A number of design parameters regarding both the multilayer stack and the etched grating structure can be optimized to maximize the laser damage threshold and also improve the processing latitude for the interference lithography and reactive ion etching steps used during manufacture of these gratings. This paper presents model predictions for the behavior of hafnia/silica MDG`s both during processing and in operation, and presents experimental data on the diffraction efficiency and short- pulse laser damage threshold for optimized witness gratings.

Britten, J.A.; Perry, M.D.; Shore, B.W.; Boyd, R.D.; Loomis, G.E.; Chow, R.

1995-11-29T23:59:59.000Z

Note: This page contains sample records for the topic "grated analy sis" from the National Library of EnergyBeta (NLEBeta).
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to obtain the most current and comprehensive results.


101

Improvement of Laser Damage Resistance and Diffraction Efficiency of Multilayer Dielectric Diffraction Gratings by HF-Etchback Linewidth Tailoring  

SciTech Connect

Multilayer dielectric (MLD) diffraction gratings for Petawatt-class laser systems possess unique laser damage characteristics. Details of the shape of the grating lines and the concentration of absorbing impurities on the surface of the grating structures both have strong effects on laser damage threshold. It is known that electric field enhancement in the solid material comprising the grating lines varies directly with the linewidth and inversely with the line height for equivalent diffraction efficiency. Here, they present an overview of laser damage characteristics of MLD gratings, and describe a process for post-processing ion-beam etched grating lines using very dilute buffered hydrofluoric acid solutions. This process acts simultaneously to reduce grating linewidth and remove surface contaminants, thereby improving laser damage thresholds through two pathways.

Nguyen, H T; Larson, C C; Britten, J A

2010-10-28T23:59:59.000Z

102

Second-order Bragg gratings in single-mode chalcogenide fibres  

SciTech Connect

Bragg gratings with a second-order resonance wavelength in the near-IR spectral region have been inscribed into single-mode chalcogenide (As{sub 2}S{sub 3}) glass fibre by a He - Ne laser beam using a configuration typical of Bragg grating fabrication in germanosilicate fibre, with the use of a phase mask that ensures effective diffraction of the writing light into the +1 and -1 orders. The spectra of the inscribed gratings show no resonances due to cladding mode excitation because the cladding material is photosensitive. (fibre optics)

Bernier, M; Asatryan, K E; Vallee, R; Galstian, T M; Vasil'ev, Sergei A; Medvedkov, O I; Plotnichenko, V G; Gnusin, P I; Dianov, Evgenii M

2011-05-31T23:59:59.000Z

103

Cell Cycle and Morphological Changes during Growth and Differentiation of a Rat Basophilic Leukemia Cell Line  

Science Journals Connector (OSTI)

...concentration. During rapid oeforcedexponential...as labeled. Automated Cytology. Cell...that had been in rapid exponen tial...distributions using the Simulation, Modeling and Analy sis...Weiss, M. F. Simulation, Analysis and Modeling Man ual. U...

Donald N. Buell; B. J. Fowlkes; Henry Metzger; and Chaviva Isersky

1976-09-01T23:59:59.000Z

104

Estimating consumption rates of juvenile sandbar sharks (Carcharhinus plumbeus) in Chesapeake Bay, Virginia, using a bioenergetics model  

E-Print Network (OSTI)

error analy- sis of fish bioenergetics models. Can J. Fish.importance of activity in bioenergetics models applied toA. C. Cockcroft. 1990. Bioenergetics of fishes in a high-

Dowd, William Wesley; Brill, R W; Bushnell, P G; Musick, J A

2006-01-01T23:59:59.000Z

105

1439-1791/03/04/02-105 $ 15.00/0 Basic Appl. Ecol. 4, 105106 (2003)  

E-Print Network (OSTI)

demonstrates that the production of regenerative biomass such as wood can easily be connected to an increase. Their vegetation analy- sis clearly shows that small-scale poplar plantations can increase floristic diversity

Richner, Heinz

106

Studies of heavy ion-induced high-energy density states in matter at the GSI Darmstadt SIS-18 and future FAIR facility  

Science Journals Connector (OSTI)

This paper presents numerical simulation results of heating and compression of matter using intense beams of energetic heavy ions. In this study we consider different beam parameters that include those which are currently available at the heavy ion synchrotron, SIS18 at the Gesellschaft fŁr Schwerionenforschung (GSI), Darmstadt and those which will be available in the near future as a result of the upgraded facility. In addition to this, we carried out detailed calculations considering parameters of high-intensity beam which will be generated at the GSI future Facility for Antiprotons and Ion Research (FAIR facility) that has been approved by the German Government. These simulations show that by using the above ion beam parameter range, it will be possible to carry out very useful studies on the thermophysical properties of high-energy density (HED) states in matter. This scheme would make it possible to investigate those regions of the phase diagram that are either very difficult to access or even are unaccessible using the traditional methods of shock waves. Moreover, employing a hollow ion beam which has an annular (ring shaped) focal spot, it would be possible to achieve a low entropy compression of a test material like hydrogen, which is enclosed in a cylindrical shell of a high-density material such as lead or gold. These experiments will enable one to study the interiors of Giant planets, Jupiter and Saturn as well as to investigate the problem of hydrogen metallization.

N.A. Tahir; A. Adonin; C. Deutsch; V.E. Fortov; N. Grandjouan; B. Geil; V. Grayaznov; D.H.H. Hoffmann; M. Kulish; I.V. Lomonosov; V. Mintsev; P. Ni; D. Nikolaev; A.R. Piriz; N. Shilkin; P. Spiller; A. Shutov; M. Temporal; V. Ternovoi; S. Udrea; D. Varentsov

2005-01-01T23:59:59.000Z

107

Microfabrication of Optically Flat Silicon Micro-Mirrors for Fully Programmable Micro-Diffraction Gratings  

E-Print Network (OSTI)

We have fabricated and characterized a Fully Programmable Micro-Diffraction Grating (FPMDG) with 64 silicon micro-mirrors for spectral shaping in the visible and near-infrared wavelength range. The FPMDG arrays of 50 ?m ...

Timotijevic, B.

2012-01-01T23:59:59.000Z

108

Small blaze angle gratings with various surface treatments for use in the extreme ultraviolet  

Science Journals Connector (OSTI)

Three replica gratings were made from a single master; two were epoxy overcoated with different thicknesses of gold, and one was replicated directly in gold. Their performance in EUV...

Miller, Anne; Jelinsky, Patrick; Bowyer, Stuart; Welsh, Barry Y

1989-01-01T23:59:59.000Z

109

High-order diffraction gratings for high-power semiconductor lasers  

SciTech Connect

A deep diffraction grating with a large period ({approx}2 {mu}m) within one of the cladding layers is proposed for the implementation of selective feedback in a semiconductor laser. Frequency dependences of reflectance in the 12th diffraction order for rectangular, triangular, and trapezoidal diffraction gratings are calculated. It is shown that the maximum reflectance of the waveguide mode is attained using a rectangular or trapezoidal grating {approx}2 {mu}m deep in the laser structure. Deep trapezoidal diffraction gratings with large periods are fabricated in the Al{sub 0.3}Ga{sub 0.7}As cladding layer of a GaAs/AlGaAs laser structure using photolithography and reactive ion etching.

Vasil'eva, V. V.; Vinokurov, D. A.; Zolotarev, V. V.; Leshko, A. Yu.; Petrunov, A. N.; Pikhtin, N. A.; Rastegaeva, M. G.; Sokolova, Z. N., E-mail: Zina.Sokolova@mail.ioffe.ru; Shashkin, I. S.; Tarasov, I. S. [Russian Academy of Sciences, Ioffe Physical Technical Institute (Russian Federation)

2012-02-15T23:59:59.000Z

110

Simulation of Energy Conversion Efficiency of a Solar Cell with Gratings  

Science Journals Connector (OSTI)

In this work, a numerical analysis of a CIGS (CuIn1-xGaxSex) solar cell with a rectangular grating on the electrode is presented. The effects of...

Kim, Sung-Chul; Sohn, In-Soo

2010-01-01T23:59:59.000Z

111

A Soft X-ray Spectrometer using a Highly Dispersive Multilayer Grating  

SciTech Connect

There is a need for higher resolution spectrometers as a tool for inelastic x-ray scattering. Currently, resolving power around R = 10,000 is advertised. Measured RIXS spectra are often limited by this instrumental resolution and higher resolution spectrometers using conventional gratings would be prohibitively large. We are engaged in a development program to build blazed multilayer grating structures for diffracting soft x-rays in high order. This leads to spectrometers with dispersion much higher than is possible using metal coated-gratings. The higher dispersion then provides higher resolution and the multilayer gratings are capable of operating away from grazing incidence as required. A spectrometer design is presented with a total length 3.8 m and capable of 10{sup 5} resolving power.

Warwick, Tony; Padmore, Howard; Voronov, Dmitriy; Yashchuk, Valeriy [Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA94720 (United States)

2010-06-23T23:59:59.000Z

112

Energy Exchange between Light Waves on Local Photorefractive Grating in a Cubic Gyrotropic Crystal  

Science Journals Connector (OSTI)

Steady-state two-wave interaction on a local photorefractive grating formed in a cubic gyrotropic crystal with applied constant electric field is considered. The analytical solution is...

Litvinov, R V

113

Elimination of higher-order diffraction using zigzag transmission grating in soft x-ray region  

SciTech Connect

We present a realization of the sinusoidal transmission function using a series of zigzag-profiled strips where the transmission takes on the binary values 0 and 1 in a two-dimensional distribution. A zigzag transmission grating of 1000 line/mm has been fabricated and demonstrated on the soft x-ray beam of synchrotron radiation. The axial single-order diffraction indicates that the zigzag transmission grating is adequate for spectroscopic application.

Zang, H. P.; Wang, C. K. [Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, Sichuan 621900 (China); Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065 (China); Gao, Y. L.; Zhou, W. M.; Kuang, L. Y.; Wei, L.; Fan, W.; Zhang, W. H.; Zhao, Z. Q.; Cao, L. F.; Gu, Y. Q.; Zhang, B. H. [Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, Sichuan 621900 (China); Jiang, G. [Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065 (China); Zhu, X. L.; Xie, C. Q. [Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029 (China); Zhao, Y. D.; Cui, M. Q. [Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049 (China)

2012-03-12T23:59:59.000Z

114

Experimental observation of acoustic sub-harmonic diffraction by a grating  

SciTech Connect

A diffraction grating is a spatial filter causing sound waves or optical waves to reflect in directions determined by the frequency of the waves and the period of the grating. The classical grating equation is the governing principle that has successfully described the diffraction phenomena caused by gratings. However, in this work, we show experimental observation of the so-called sub-harmonic diffraction in acoustics that cannot be explained by the classical grating equation. Experiments indicate two physical phenomena causing the effect: internal scattering effects within the corrugation causing a phase shift and nonlinear acoustic effects generating new frequencies. This discovery expands our current understanding of the diffraction phenomenon, and it also makes it possible to better design spatial diffraction spectra, such as a rainbow effect in optics with a more complicated color spectrum than a traditional rainbow. The discovery reveals also a possibly new technique to study nonlinear acoustics by exploitation of the natural spatial filtering effect inherent to an acoustic diffraction grating.

Liu, Jingfei, E-mail: benjamin.jf.liu@gatech.edu; Declercq, Nico F., E-mail: declercqdepatin@gatech.edu [Laboratory for Ultrasonic Nondestructive Evaluation ďLUNE,Ē Georgia Tech Lorraine, Georgia Tech-CNRS UMI2958, Georgia Institute of Technology, 2, rue Marconi, Metz 57070 (France)

2014-06-28T23:59:59.000Z

115

Exposure Time Calculator for Immersion Grating Infrared Spectrograph: IGRINS  

E-Print Network (OSTI)

We present an exposure-time calculator (ETC) for the Immersion Grating Infrared Spectrograph (IGRINS). The signal and noise values are calculated by taking into account the telluric background emission and absorption, the emission and transmission of the telescope and instrument optics, and the dark current and read noise of the infrared detector arrays. For the atmospheric transmission, we apply models based on the amount of precipitable water vapor along the line of sight to the target. The ETC produces the expected signal-to-noise ratio (S/N) for each resolution element, given the exposure-time and number of exposures. In this paper, we compare the simulated continuum S/N for the early-type star HD 124683 and the late-type star GSS 32, and the simulated emission line S/N for the H2 rovibrational transitions from the Iris Nebula NGC 7023 with the observed IGRINS spectra. The simulated S/N from the ETC is overestimate by 10 - 15 % for the sample continuum targets.

Le, Huynh Anh N; Jaffe, Daniel T; Lee, Jae-Joon; Im, Myungshin; Kaplan, Kyle; Seifahrt, Andreas

2015-01-01T23:59:59.000Z

116

Active resonant subwavelength grating for scannerless range imaging sensors.  

SciTech Connect

In this late-start LDRD, we will present a design for a wavelength-agile, high-speed modulator that enables a long-term vision for the THz Scannerless Range Imaging (SRI) sensor. It takes the place of the currently-utilized SRI micro-channel plate which is limited to photocathode sensitive wavelengths (primarily in the visible and near-IR regimes). Two of Sandia's successful technologies--subwavelength diffractive optics and THz sources and detectors--are poised to extend the capabilities of the SRI sensor. The goal is to drastically broaden the SRI's sensing waveband--all the way to the THz regime--so the sensor can see through image-obscuring, scattering environments like smoke and dust. Surface properties, such as reflectivity, emissivity, and scattering roughness, vary greatly with the illuminating wavelength. Thus, objects that are difficult to image at the SRI sensor's present near-IR wavelengths may be imaged more easily at the considerably longer THz wavelengths (0.1 to 1mm). The proposed component is an active Resonant Subwavelength Grating (RSG). Sandia invested considerable effort on a passive RSG two years ago, which resulted in a highly-efficient (reflectivity greater than gold), wavelength-specific reflector. For this late-start LDRD proposal, we will transform the passive RSG design into an active laser-line reflector.

Kemme, Shanalyn A.; Nellums, Robert O.; Boye, Robert R.; Peters, David William

2006-11-01T23:59:59.000Z

117

Arrayed resonant subwavelength gratings : LDRD 38618 final report.  

SciTech Connect

This report describes a passive, optical component called resonant subwavelength gratings (RSGs), which can be employed as one element in an RSG array. An RSG functions as an extremely narrow wavelength and angular band reflector, or mode selector. Theoretical studies predict that the infinite, laterally-extended RSG can reflect 100% of the resonant light while transmitting the balance of the other wavelengths. Experimental realization of these remarkable predictions has been impacted primarily by fabrication challenges. Even so, we will present large area (1.0mm) RSG reflectivity as high as 100.2%, normalized to deposited gold. Broad use of the RSG will only truly occur in an accessible micro-optical system. This program at Sandia is a normal incidence array configuration of RSGs where each array element resonates with a distinct wavelength to act as a dense array of wavelength- and mode-selective reflectors. Because of the array configuration, RSGs can be matched to an array of pixels, detectors, or chemical/biological cells for integrated optical sensing. Micro-optical system considerations impact the ideal, large area RSG performance by requiring finite extent devices and robust materials for the appropriate wavelength. Theoretical predictions and experimental measurements are presented that demonstrate the component response as a function of decreasing RSG aperture dimension and off-normal input angular incidence.

Grotbeck, Carter L.; Kemme, Shanalyn A.; Wendt, Joel Robert; Warren, Mial E.; Samora, Sally; Carter, Tony Ray; Hadley, G. Ronald; Peters, David William

2003-11-01T23:59:59.000Z

118

Mass production of volume phase holographic gratings for the VIRUS spectrograph array  

E-Print Network (OSTI)

The Visible Integral-field Replicable Unit Spectrograph (VIRUS) is a baseline array of 150 copies of a simple, fiber-fed integral field spectrograph that will be deployed on the Hobby-Eberly Telescope (HET). VIRUS is the first optical astronomical instrument to be replicated on an industrial scale, and represents a relatively inexpensive solution for carrying out large-area spectroscopic surveys, such as the HET Dark Energy Experiment (HETDEX). Each spectrograph contains a volume phase holographic (VPH) grating with a 138 mm diameter clear aperture as its dispersing element. The instrument utilizes the grating in first-order for 350-550 nm. Including witness samples, a suite of 170 VPH gratings has been mass produced for VIRUS. Here, we present the design of the VIRUS VPH gratings and a discussion of their mass production. We additionally present the design and functionality of a custom apparatus that has been used to rapidly test the first-order diffraction efficiency of the gratings for various discrete wav...

Chonis, Taylor S; Hill, Gary J; Clemens, J Christopher; Lee, Hanshin; Tuttle, Sarah E; Adams, Joshua J; Marshall, J L; DePoy, D L; Prochaska, Travis

2014-01-01T23:59:59.000Z

119

Improved algorithm for processing grating-based phase contrast interferometry image sets  

SciTech Connect

Grating-based X-ray and neutron interferometry tomography using phase-stepping methods generates large data sets. An improved algorithm is presented for solving for the parameters to calculate transmissions, differential phase contrast, and dark-field images. The method takes advantage of the vectorization inherent in high-level languages such as Mathematica and MATLAB and can solve a 16 ◊ 1k ◊ 1k data set in less than a second. In addition, the algorithm can function with partial data sets. This is demonstrated with processing of a 16-step grating data set with partial use of the original data chosen without any restriction. Also, we have calculated the reduced chi-square for the fit and notice the effect of grating support structural elements upon the differential phase contrast image and have explored expanded basis set representations to mitigate the impact.

Marathe, Shashidhara, E-mail: marathe@aps.anl.gov; Assoufid, Lahsen, E-mail: assoufid@aps.anl.gov; Xiao, Xianghui, E-mail: xhxiao@aps.anl.gov [Advanced Photon Source, Argonne National Laboratory, 9700 S. Cass Ave., Argonne, Illinois 60439 (United States)] [Advanced Photon Source, Argonne National Laboratory, 9700 S. Cass Ave., Argonne, Illinois 60439 (United States); Ham, Kyungmin, E-mail: kham1@lsu.edu [CAMD, LSU, Baton Rouge, Louisiana 70806 (United States)] [CAMD, LSU, Baton Rouge, Louisiana 70806 (United States); Johnson, Warren W., E-mail: johnson@ligo.phys.lsu.edu [Department of Physics and Astronomy, LSU, Baton Rouge, Louisiana 70803 (United States); Butler, Leslie G., E-mail: lbutler@lsu.edu [Department of Chemistry, LSU, Baton Rouge, Louisiana 70803 (United States)

2014-01-15T23:59:59.000Z

120

Effective Absorption Enhancement in Small Molecule Organic Solar Cells by Employing Trapezoid Gratings  

E-Print Network (OSTI)

We demonstrate the optical absorption has been enhanced in the small molecule organic solar cells by employing trapezoid grating structure. The enhanced absorption is mainly attributed to both waveguide modes and surface plasmon modes, which has been simulated by using finite-difference time-domain method. The simulated results show that the surface plasmon along the semitransparent metallic Ag anode is excited by introducing the periodical trapezoid gratings, which induce high intensity field increment in the donor layer. Meanwhile, the waveguide modes result a high intensity field in acceptor layer. The increment of field improves the absorption of organic solar cells, significantly, which has been demonstrated by simulating the electrical properties. The simulated results exhibiting 31 % increment of the short-circuit current has been achieved in the optimized device, which is supported by the experimental measurement. The power conversion efficiency of the grating sample obtained in experiment exhibits an...

Chun-Ping, Xiang; Yu, Jin; Bin-Zong, Xu; Wei-Min, Wang; Xin, Wei; Guo-Feng, Song; Yun, Xu

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "grated analy sis" 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

Bend-insensitive ultra short long-period gratings by the electric arc method and their applications to harsh environment sensing and communication  

Science Journals Connector (OSTI)

Ultra short long-period gratings (LPGs) fabricated using the electric arc discharge method are demonstrated with regular single-mode fibers. The gratings were as short as two...

Nam, Sung; Zhan, Chun; Lee, Jon; Hahn, Corey; Reichard, Karl; Ruffin, Paul; Deng, Kung-Li; Yin, Shizhuo

2005-01-01T23:59:59.000Z

122

Fabrication of large area 100 nm pitch grating by spatial frequency doubling and nanoimprint lithography for subwavelength  

E-Print Network (OSTI)

Fabrication of large area 100 nm pitch grating by spatial frequency doubling and nanoimprint nm pitch gratings over a large area 10 cm2 using a simple, low-cost, fast process. This method doubling and 2 pattern replication using nanoimprint lithography. The form birefringence of a 100 nm pitch

123

Cryogenic tests of volume-phase holographic gratings: results at 100 K  

E-Print Network (OSTI)

We present results from cryogenic tests of Volume-Phase Holographic(VPH) gratings at 100 K. The aims of these tests are to see whether the diffraction efficiency as a function of wavelength is significantly different at a low temperature from that at room temperature and to see how the performance of a VPH grating is affected by a number of thermal cycles. We have completed 10 cycles between room temperature and 100 $K$, and find no clear evidence that the diffraction efficiency changes with temperature or with successive thermal cycle.

Naoyuki Tamura; Graham J. Murray; Peter Luke; Colin Blackburn; David J. Robertson; Nigel A. Dipper; Ray M. Sharples; Jeremy R. Allington-Smith

2006-09-04T23:59:59.000Z

124

X-ray Phase Imaging Microscopy using a Fresnel Zone Plate and a Transmission Grating  

SciTech Connect

We report on a hard X-ray phase imaging microscopy (a phase-difference microscopy) that consists of an objective and a transmission grating. The simple optical system provides a quantitative phase image, and does not need a wave field mostly coherent on the objective. Our method has a spatial resolution almost same as that of the absorption contrast microscope image obtained by removing the grating. We demonstrate how our approach provides a phase image from experimentally obtained images. Our approach is attractive for easily appending a quantitative phase-sensitive mode to normal X-ray microscopes, and has potentially broad applications in biology and material sciences.

Yashiro, Wataru; Momose, Atsushi [Department of Advanced Materials Science, Graduate School of Frontier Sciences, University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa, Chiba, 277-8561 (Japan); Takeuchi, Akihisa; Suzuki, Yoshio [Japan Synchrotron Radiation Research Institute (JASRI), 1-1-1, Kouto, Sayo-cho, Sayo-gun, Hyogo, 679-5198 (Japan)

2010-06-23T23:59:59.000Z

125

Temperature dependence of plasmonic terahertz absorption in grating-gate gallium-nitride transistor structures  

Science Journals Connector (OSTI)

Strong plasmon resonances have been observed in the terahertz transmission spectra (1Ė5 THz) of large-area slit-grating-gate AlGaN/GaN-based high-electron-mobility transistor(HEMT) structures at temperatures from 10 to 170 K. The resonance frequencies correspond to the excitation of plasmons with wave vectors equal to the reciprocal lattice vectors of the metal grating which serves both as a gate electrode for the HEMT and a coupler between plasmons and incident terahertz radiation. Wide tunability of the resonances by the applied gate voltage demonstrates potential of these devices for terahertz applications.

A. V. Muravjov; D. B. Veksler; V. V. Popov; O. V. Polischuk; N. Pala; X. Hu; R. Gaska; H. Saxena; R. E. Peale; M. S. Shur

2010-01-01T23:59:59.000Z

126

Development of two-grating spectrometer for the charge exchange spectroscopy system on KSTAR  

SciTech Connect

The charge exchange spectroscopy (CES) system on Korea Superconducting Tokamak Advanced Research (KSTAR) was installed last year and had been applied to measure the C VI ion temperature and rotation velocity profiles. The ion temperature and rotation velocity profiles had been estimated from the C VI 5290.5 A (n = 8-7) charge-exchange spectrum signal measured by a Czerny-Turner type spectrometer and a thinned back-illuminated charge coupled device (CCD) camera. However, the Czerny-Turner type spectrometer used for the KSTAR CES system showed so low signal to noise ratio for KSTAR plasmas in the 2010 experimental campaign that the time resolution of the CES system had been limited to 100 ms due to the increased exposure time of the attached CCD camera. Then, new two-grating spectrometer had been developed in order to improve the time resolution of the CES system. The spectrometer consists of two gratings (1200 g/mm and 1800 g/mm each) with additive configuration, concave mirrors (f = 50 cm), and a cylindrical lens (f = 50 cm). The time resolution of the CES system increases by a factor of 2-4 with the two-grating spectrometer. The C VI ion temperature and rotation velocity profiles obtained by the two-grating spectrometer are compared to those by Czerny-Turner type spectrometer in this paper.

Lee, Hyungho [Department of Nuclear Fusion and Plasma Science, University of Science and Technology (UST), Gajungro 217, Daejeon 305-350 (Korea, Republic of); National Fusion Research Institute (NFRI), Gwahangno113, Daejeon 305-333 (Korea, Republic of); Song, Eun-ji; Oh, Soo-ghee [Division of Energy Systems Research, Ajou University, Suwon 443-749 (Korea, Republic of); Park, Young-dong [Department of Chemistry, Ajou University, Suwon 443-749 (Korea, Republic of); Ko, Won-Ha [National Fusion Research Institute (NFRI), Gwahangno113, Daejeon 305-333 (Korea, Republic of)

2011-06-15T23:59:59.000Z

127

Constructions and Analyses of Nonblocking WDM Switches Based on Arrayed Waveguide Grating and  

E-Print Network (OSTI)

(and heat dissipation) and large footprint (or space consump­ tion). As the optical device1 Constructions and Analyses of Nonblocking WDM Switches Based on Arrayed Waveguide Grating, qiao}@cse.buffalo.edu Abstract--- Constructing fast wavelength division multi­ plexing (WDM) switches

Ngo, Hung Q.

128

Force Sensing Robot Fingers using Embedded Fiber Bragg Grating Sensors and Shape Deposition Manufacturing  

E-Print Network (OSTI)

Force Sensing Robot Fingers using Embedded Fiber Bragg Grating Sensors and Shape Deposition@ifos.com Abstract-- Force sensing is an essential requirement for dexterous robot manipulation. Although strain robustness, design flexibility and immunity to electromagnetic noise. An exoskeletal force sensing robot

Park, Yong-Lae

129

Incorporation of nanovoids into metallic gratings for broadband plasmonic organic solar  

E-Print Network (OSTI)

Incorporation of nanovoids into metallic gratings for broadband plasmonic organic solar cells investigation and optimization of a newly proposed plasmonic organic solar cell geometry based. Kietzke, "Recent advances in organic solar cells," Adv. Optoelectron. 2007, 40285 (2007). 2. P. E. Shaw, A

Park, Namkyoo

130

Emergence of self-organized long-period fiber gratings in supercontinuum-generating  

E-Print Network (OSTI)

-order fiber cladding mode associated with the grating gains amplification at the expense of the fiber core the cladding mode(s) into which the waveguide scatters away the core mode [4]. The cladding mode(s) should, the cou- pling efficiency (CE) of cw probe light (produced by the cw operation of the writing laser

Boppart, Stephen

131

Discriminability of Real and Virtual Surfaces with Triangular Gratings Matthew Kocsis*  

E-Print Network (OSTI)

be achieved with an electrical discharge machining (EDM) procedure, but the process is time consuming processes (machined with a cutting tool, and electrical discharge machining, or EDM) and, therefore-defined sinusoidal and triangular gratings by wire EDM entails a post-machining polishing step. This process, which

Tan, Hong Z.

132

Experimental observation of a traveling plasma grating formed by two crossing filaments in gases  

SciTech Connect

The spatial motion and effective duration of a traveling plasma grating formed by two interfering femtosecond laser filaments in gases is characterized by its Doppler effect imparted on a probe pulse. The shift velocity determined experimentally agrees with the theoretical calculations.

Durand, Magali [Laboratoire d'Optique Appliquee, ENSTA ParisTech-Ecole Polytechnique-CNRS, 91761 Palaiseau (France); ONERA, Chemin de la Huniere, 91761 Palaiseau (France); Liu Yi; Forestier, Benjamin; Houard, Aurelien; Mysyrowicz, Andre [Laboratoire d'Optique Appliquee, ENSTA ParisTech-Ecole Polytechnique-CNRS, 91761 Palaiseau (France)

2011-03-21T23:59:59.000Z

133

Passive Spectroscopy Bolometers, Grating- And X-Ray Imaging Crystal Spectrometers  

SciTech Connect

This tutorial gives a brief introduction into passive spectroscopy and describes the working principles of bolometers, a high-resolution grating spectrometer, and a novel X-ray imaging crystal spectrometer, which is of particular interest for profile measurements of the ion temperature and plasma rotation velocity on ITER and future burning plasma experiments.

Bitter, M; Hill, K W; Scott, S; Paul, S; Ince-Cushmann, A; Reinke, M; Rice, J; Beiersdorfer, P; Gu, M F; Lee, S G; Broennimann, C; Eikenberry, E F

2007-11-07T23:59:59.000Z

134

Europhysics Letters PREPRINT Lipid membranes on a surface grating studied by neutron  

E-Print Network (OSTI)

Europhysics Letters PREPRINT Lipid membranes on a surface grating studied by neutron reflectometry by neutron reflectometry, we determine the smectic penetration length = K/B from the relative intensity 37073 Goettingen, Germany PACS. 87.16.Dg ­ Membranes, bilayers, and vesicles. PACS. 61.12.Ha ­ Neutron

Paris-Sud XI, Université de

135

A Precision Comparison of Calculated and Observed Grating Constants of Crystals  

Science Journals Connector (OSTI)

A precision comparison of the calculated and observed grating constants of calcite, rocksalt, artificial KCl, and diamond crystals is made with calcite as standard. The calculated values are determined from density measurements, while the observed values are calculated from the angles of reflection for the Mo K?1 line obtained by means of a precision double-crystal spectrometer. The value of ? obtained from the calculated grating constant of calcite is used to determine the observed grating constants of the other crystals. The density of rocksalt and KCl is measured by immersion in Russian mineral oil whose density and change of density with temperature was found to be 0.88011 at 24įC. and 0.000064 per 0.1į respectively. The density of diamond is determined by weighing a solution of thallous formate and thallous malonate, in which the diamond just floats, in a calibrated specific gravity bottle of approximately 50 cc capacity. Two methods are used in the x-ray measurements, namely, the calcite method, de scribed by A. H. Compton and S. K. Allison and J. H. Williams, and the rocksalt method. The latter consists of measuring the peak position of the beam reflected from crystal B by swinging the ionization chamber past the beam, with two narrow slits between it and the crystal, ranging in width from 0.04 to 0.08 mm and separated by a distance of 18 cm. Calculated and observed values of the grating constants of these crystals are found to agree within experimental error, ranging from 0.004 to 0.011 percent, showing no evidence of Zwicky's "secondary structure," which he offered as a possible explanation of the discrepancy between x-ray wave-lengths obtained by the crystal method and those by the ruled grating method. Measurements on two quartz crystals showed a decided variation in the internal structure of the crystal, and indicate that quartz is unsuitable for precise wave-length measurements.

Yuching Tu

1932-06-01T23:59:59.000Z

136

Effect of plasmonic losses on light emission enhancement in quantum-wells coupled to metallic gratings  

SciTech Connect

Recent experimental work has shown significant luminescence enhancement from near-surface quantum-well (QW) structures using metallic grating to convert surface plasmon (SP) modes into radiative modes. This work introduces a detailed theoretical study of plasmonic losses and the role of SPs in improving light extraction from grated light-emitting QW structures, using the fluctuational electrodynamics method. The method explains experimental results demonstrating emission enhancement, light scattering, and plasmonic coupling in the structures. We study these effects in angle-resolved reflectometry and luminescence setups in InGaN QW structures with silver grating. In contrast to experiments, our model allows direct calculation of the optical losses. The model predicts that the plasmonic coupling and scattering increases light emission by a factor of up to three compared to a flat semiconductor structure. This corresponds to reducing the absorption losses from approximately 93% in the ungrated metallic structure to 75% in the grated structure. Lower losses are associated with a significant emission enhancement enabled by the SPs of silver/GaN interfaces, which are present in the blue/green wavelength range, and can be optimized by carefully nanostructuring the metal layer and by the positioning of the QW. In general, the enhancement results from the interplay of mode scattering, conversion of SP energy directly into light, and losses in the metallic grating. The reported losses are very high when compared to the losses present in modern light-emitting diodes (LEDs). Albeit, our work provides tools needed for further optimization of plasmonic light extraction, eventually leading to highly efficient LEDs.

Sadi, Toufik; Oksanen, Jani; Tulkki, Jukka [Department of Biomedical Engineering and Computational Sciences, Aalto University, P.O. Box 12200, FI-00076 Aalto (Finland)

2013-12-14T23:59:59.000Z

137

Formation of binary phase gratings in photopolymer-liquid crystal composites by a surface-controlled anisotropic phase separation  

SciTech Connect

We report on formation of binary phase gratings in photopolymer-liquid crystal (PLC) composites using a surface-controlled phase separation method. The binary nature of the PLC phase gratings is produced by employing a single step photo-ablation through an amplitude photomask which precisely controls the interfacial interactions between the LC and the photopolymer on the alignment layer. A subsequent illumination of the ultraviolet light onto the whole PLC promotes an anisotropic phase separation resulting in the formation of distinct binary patterns for the PLC structure. The electrically tunable diffraction properties of the binary phase gratings are presented.

Park, Jae-Hong; Khoo, Iam Choon; Yu, Chang-Jae; Jung, Min-Sik; Lee, Sin-Doo [216 Electrical Engineering East, Pennsylvania State University, University Park, Pennsylvania 16802 (United States); School of Electrical Engineering no. 32, Seoul National University, Kwanak P.O. Box 34, Seoul 151-600 (Korea, Republic of)

2005-01-10T23:59:59.000Z

138

Milestones and basic principles of grating-based x-ray and neutron phase-contrast imaging  

SciTech Connect

This is a review of the most important milestones in the last ten years of development in the field of grating-based x-ray and neutron imaging. It provides a description of the basic imaging principles of grating-based phase-contrast and dark-field radiography and present some exemplary multimodal radiography results obtained with x-rays and neutrons. Furthermore, it reviews the theory of grating-based quantitative transmission, phase-contrast, and dark-field scattering computed tomography.

Pfeiffer, Franz [Technical University Munich, 85748 Garching (Germany)

2012-07-31T23:59:59.000Z

139

An ethanol vapor detection probe based on a ZnO nanorod coated optical fiber long period grating  

Science Journals Connector (OSTI)

A new ethanol vapor detection probe based on an optical fiber long period grating overlaid with a zinc oxide (ZnO) nanorods layer is presented. The ZnO nanorod layer was developed onto...

Konstantaki, Maria; Klini, Argyro; Anglos, Demetrios; Pissadakis, Stavros

2012-01-01T23:59:59.000Z

140

Annealing of UV Ar+ and ArF excimer laser fabricated Bragg gratings: SMF-28e fiber  

Science Journals Connector (OSTI)

Fiber Bragg gratings fabricated in pristine SMF-28e fibers using pulsed ArF-excimer and cw 244-nm Ar+ laser were annealed using tempering rates from 0.0038 to 0.25 K/s....

Violakis, Georgios; Limberger, Hans G

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "grated analy sis" 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

Fabrication of high-throughput critical-angle X-ray transmission gratings for wavelength-dispersive spectroscopy  

E-Print Network (OSTI)

The development of the critical-angle transmission (CAT) grating seeks both an order of magnitude improvement in the effective area, and a factor of three increase in the resolving power of future space-based, soft x-ray ...

Bruccoleri, Alexander Robert

2013-01-01T23:59:59.000Z

142

Optimization of nonbinary slanted surface-relief gratings as high-efficiency broadband couplers for light guides  

Science Journals Connector (OSTI)

We propose and investigate the use of slanted surface-relief gratings with nonbinary profiles as high-efficiency broadband couplers for light guides. First, a Chandezon-method-based...

Bai, Benfeng; Laukkanen, Janne; Kuittinen, Markku; Siitonen, Samuli

2010-01-01T23:59:59.000Z

143

Detection of adulteration in virgin olive oil using a fiber optic long period grating based sensor  

Science Journals Connector (OSTI)

A fiber optic sensing system for the detection of adulteration of virgin olive oil by less expensive sunflower oil is presented. The fundamental principle of detection is the sensitive dependence of the resonance peaks of a long period grating (LPG) on the changes in the refractive index of the environmental medium surrounding the cladding surface of the grating. The performance of the sensor has been tested by monitoring the amplitude changes of the attenuation bands of the LPG in response to variation of adulteration level. With good repeatability, the detection limit of adulteration is 4% and the sensor sensitivity is around 0.07†dB†vol%?1 of adulterant in the measurement range. The developed sensor is user-friendly, reusable and allows instantaneous measurement of the amount of adulteration without involving any reagents.

T M Libish; M C Bobby; J Linesh; S Mathew; C Pradeep; V P N Nampoori; P Biswas; S Bandyopadhyay; K Dasgupta; P Radhakrishnan

2013-01-01T23:59:59.000Z

144

Cascading metallic gratings for broadband absorption enhancement in ultrathin plasmonic solar cells  

SciTech Connect

The incorporation of plasmonic nanostructures in the thin-film solar cells (TFSCs) is a promising route to harvest light into the nanoscale active layer. However, the light trapping scheme based on the plasmonic effects intrinsically presents narrow-band resonant enhancement of light absorption. Here we demonstrate that by cascading metal nanogratings with different sizes atop the TFSCs, broadband absorption enhancement can be realized by simultaneously exciting multiple localized surface plasmon resonances and inducing strong coupling between the plasmonic modes and photonic modes. As a proof of concept, we demonstrate of 66.5% in the photocurrent in an ultrathin amorphous silicon TFSC with two-dimensional cascaded gratings over the reference cell without gratings.

Wen, Long; Sun, Fuhe [Key Laboratory of Nanodevices and Applications-CAS and Collaborative Innovation Center of Suzhou Nano Science and Technology, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences (CAS), Suzhou 215123 (China); Chen, Qin, E-mail: qchen2012@sinano.ac.cn [Key Laboratory of Nanodevices and Applications-CAS and Collaborative Innovation Center of Suzhou Nano Science and Technology, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences (CAS), Suzhou 215123 (China); Peking University Shenzhen SOC Key Laboratory, PKU-HKUST Shenzhen-Hong Kong Institute, Hi-Tech Industrial Park South, Shenzhen 518057 (China)

2014-04-14T23:59:59.000Z

145

Grating formation by a high power radio wave in near-equator ionosphere  

SciTech Connect

The formation of a volume grating in the near-equator regions of ionosphere due to a high power radio wave is investigated. The radio wave, launched from a ground based transmitter, forms a standing wave pattern below the critical layer, heating the electrons in a space periodic manner. The thermal conduction along the magnetic lines of force inhibits the rise in electron temperature, limiting the efficacy of heating to within a latitude of few degrees around the equator. The space periodic electron partial pressure leads to ambipolar diffusion creating a space periodic density ripple with wave vector along the vertical. Such a volume grating is effective to cause strong reflection of radio waves at a frequency one order of magnitude higher than the maximum plasma frequency in the ionosphere. Linearly mode converted plasma wave could scatter even higher frequency radio waves.

Singh, Rohtash; Sharma, A. K.; Tripathi, V. K. [Department of Physics, Indian Institute of Technology Delhi, New Delhi-110016 (India)

2011-11-15T23:59:59.000Z

146

Reverse Doppler effect of magnons with negative group velocity scattered from a moving Bragg grating  

Science Journals Connector (OSTI)

We demonstrate experimentally and theoretically the reverse Doppler effect when magnons with negative group velocity are reflected off a moving Bragg grating. This grating, which represents a moving magnonic crystal, is created in an yttrium-iron-garnet film by the periodic strain induced by a traveling surface acoustic wave. As reflection occurs from a crystal rather than from a single reflecting surface, the wave number of the scattered wave is strictly determined by a momentum conservation law. Magnons scattered from the approaching (receding) magnonic crystal are found to be shifted down (up) in frequency. This result, together with an earlier report of reverse Doppler shift from moving sources [D. D. Stancil et al., Phys. Rev. B, 74, 060404(R) (2006)], establishes that the reverse Doppler effect is a universal phenomenon in systems with negative group velocity and not restricted to left-handed materials.

A. V. Chumak; P. Dhagat; A. Jander; A. A. Serga; B. Hillebrands

2010-04-16T23:59:59.000Z

147

Surface shape resonances and surface plasmon polariton excitations in bottle-shaped metallic gratings  

Science Journals Connector (OSTI)

We study surface plasmon polariton excitations and surface shape resonances in a lossy metallic grating with bivalued cavities. The modal formalism is used to solve the diffraction problem for the infinite grating and the homogeneous problem for a single cavity in a plane surface. Both polarization modes are considered. We provide curves of reflected efficiency versus wavelength as well as near-field plots. The resonances are identified as dips in the reflected efficiency, which imply significant power absorptions. Results for various depths of the cavities and for several angles of incidence are shown, where the different types of resonant behavior can be appreciated. Particular attention is paid to the changes introduced by the finite conductivity of the metal in relation to the results obtained for a perfect conductor.

Diana C. Skigin and Ricardo A. Depine

2001-03-27T23:59:59.000Z

148

An experimental study of low-frequency amplitude noise in a fibre Bragg grating laser diode  

SciTech Connect

We have studied the amplitude noise in a fibre Bragg grating laser diode. It has been shown that discontinuities in noise characteristics correlate with those in the power Ė current and spectral characteristics of the laser diode, whereas the noise characteristics of the pump source have no such discontinuities. The highest noise level has been observed at pump currents corresponding to concurrent generation of two longitudinal modes. (lasers)

Zholnerov, V S [Russian Institute of Radionavigation and Time, St.Petersburg (Russian Federation); Ivanov, A V; Kurnosov, V D; Kurnosov, K V; Romantsevich, V I; Chernov, R V [Open Joint-Stock Company M.F. Stel'makh Polyus Research Institute, Moscow (Russian Federation)

2013-09-30T23:59:59.000Z

149

Ytterbium-doped fibre laser with a Bragg grating reflector written in a multimode fibre  

SciTech Connect

An efficient cladding-pumped Yb-doped fibre laser with a Bragg grating written in a multimode graded-index fibre is fabricated for the first time. The laser emits one transverse mode with a slope efficiency of 60%. The resonator design proposed in the paper can be used for the development of high-power fibre lasers with an increased fibre core diameter. (lasers)

Kurkov, Andrei S; Grukh, Dmitrii A; Medvedkov, O I; Paramonov, Vladimir M; Dianov, Evgenii M [Fiber Optics Research Center, Russian Academy of Sciences, Moscow (Russian Federation)

2005-04-30T23:59:59.000Z

150

Modeling On-Grate MSW Incineration with Experimental Validation in a Batch Incinerator  

Science Journals Connector (OSTI)

This knowledge cannot be readily obtained from direct experimental studies on industrial-scale incinerators; in contrast, mathematical modeling and numerical simulation appear to be an attractive approach for quantitative insight into the mechanisms and variables of waste-bed incineration. ... This approach was successfully employed for grate(6) or rotary kiln(7) plants. ... Gasification of carbon (char or coke) by steam is a well-known process for producing syngas. ...

Abhishek Asthana; Yannick Me?nard; Philippe Sessiecq; Fabrice Patisson

2010-07-12T23:59:59.000Z

151

Raman Microscopy and Mapping as a Probe for Photodegradation in Surface Relief Gratings Recorded on Layer-by-Layer Films of Congo Red/Polyelectrolyte  

Science Journals Connector (OSTI)

Raman microscopy, mapping, and surface-enhanced Raman scattering techniques have been applied to investigate the degradation of Congo Red (CR) in a surface relief grating (SRG)...

Constantino, C J L; Aroca, R F; He, J -A; Zucolotto, V; Li, L; Oliveira, O N; Kumar, J; Tripathy, S K

2002-01-01T23:59:59.000Z

152

Numerical and theoretical study of the generation of extreme ultraviolet radiation by relativistic laser interaction with a grating  

SciTech Connect

The generation of harmonics by the interaction of a femtosecond, relativistic intensity laser pulse with a grating of subwavelength periodicity was studied numerically and theoretically. For normal incidence, strong, coherent emission at the wavelength of the grating period and its harmonics is obtained, nearly parallel to the target surface, due to relativistic electron bunches emanating from each protuberance. For oblique incidence (30 deg.), only even harmonics of the grating periodicity are seen, but with an even higher intensity. This is due to constructive interference of the emission from the grating protuberances. The emission along the grating surface is composed of trains of attosecond pulses; therefore there is no need to use a filter. An efficiency greater than 10{sup -4} is obtained for the 24th harmonic. The conversion efficiency is fairly constant when the similarity parameter S=n{sub e}/(a{sub 0}n{sub c})({proportional_to}n{sub e{lambda}L}/I{sub L}{sup 1/2}) is held fixed, and is optimum when S{approx_equal}4. Here, n{sub e} and n{sub c} are the electron density and the critical density; a{sub 0}=eE{sub L}/(m{sub e{omega}L}c) is the quiver momentum in the laser field E{sub L} normalized to m{sub e}c.

Lavocat-Dubuis, X.; Matte, J.-P. [INRS-Energie, Materiaux et Telecommunications, Varennes, Quebec J3X 1S2 (Canada)

2010-09-15T23:59:59.000Z

153

Properties of the cladding modes of an optical fibre excited by refractive-index gratings  

SciTech Connect

The properties of the cladding modes of an optical fibre, excited by photoinduced long-period fibre gratings, were investigated by the near- and far-field methods. It is shown that the cladding modes considered are of the HE{sub 1m} type. A satisfactory agreement between the experimental and calculated distributions of the electromagnetic field of the modes is demonstrated. It was found that the propagation length of a cladding mode in the unperturbed fibre reaches 1 m. (laser applications and other topics in quantum electronics)

Vasil'ev, Sergei A; Dianov, Evgenii M; Medvedkov, O I; Protopopov, V N [Fiber Optics Research Center, Russian Academy of Sciences, Moscow (Russian Federation); Costantini, D M; Iocco, A; Limberger, H G; Salathe, R-P [Institute of Applied Optics, Swiss Federal Institute of Technology, Lausanne (Switzerland)

1999-01-31T23:59:59.000Z

154

Combustion process in a biomass grate fired industry furnace: a CFD study  

Science Journals Connector (OSTI)

This paper presents a CFD investigation of the combustion process in a 50 MW grate fired furnace. The CFD results were compared with available experimental data at the furnace outlet to validate the models for the volatile oxidation and NOx formation. The models were then used to predict the effect of an 'ECO' tube system on NOx emissions. It was shown that with an improved flow structure and air distribution, 30% NOx reduction can be obtained. CFD results revealed the impact of load and fuel moisture on the flow structure, the temperature distribution and the flow residence time.

T. Klason; X.S. Bai

2006-01-01T23:59:59.000Z

155

Long-period fiber grating as wavelength selective element in double-clad Yb-doped fiber-ring lasers  

E-Print Network (OSTI)

Selection of operating wavelength of the Yb-doped fiber-ring lasers using longperiod fiber gratings (LPFGs) is suggested. In the proposed method, customized LPFG that sustains high powers serves as a broad-band rejection filter. It modifies the net gain profile of the laser, enabling the peak gain to occur at a designed wavelength. Spectral range of oscillation between 1050-1110 nm was experimentally demonstrated. This range can be extended to both shorter and longer wavelengths with proper design of the LPFG and length of the Yb-doped fiber. The gratings were inscribed by CO2 laser and the grating period down to 175 ?m was achieved being, to our best knowledge, the shortest reported LPFG period using this technique.

Peterka, P; Dussardier, Bernard; Slavik, R; Honzatko, P; Kubecek, V

2009-01-01T23:59:59.000Z

156

Simultaneous maximum-likelihood reconstruction for x-ray grating based phase-contrast tomography avoiding intermediate phase retrieval  

E-Print Network (OSTI)

Phase-wrapping artifacts, statistical image noise and the need for a minimum amount of phase steps per projection limit the practicability of x-ray grating based phase-contrast tomography, when using filtered back projection reconstruction. For conventional x-ray computed tomography, the use of statistical iterative reconstruction algorithms has successfully reduced artifacts and statistical issues. In this work, an iterative reconstruction method for grating based phase-contrast tomography is presented. The method avoids the intermediate retrieval of absorption, differential phase and dark field projections. It directly reconstructs tomographic cross sections from phase stepping projections by the use of a forward projecting imaging model and an appropriate likelihood function. The likelihood function is then maximized with an iterative algorithm. The presented method is tested with tomographic data obtained through a wave field simulation of grating based phase-contrast tomography. The reconstruction result...

Ritter, Andrť; Durst, JŁrgen; GŲdel, Karl; Haas, Wilhelm; Michel, Thilo; Rieger, Jens; Weber, Thomas; Wucherer, Lukas; Anton, Gisela

2013-01-01T23:59:59.000Z

157

FROM THE ANAlyST'S COUCH Trends in the globalization  

E-Print Network (OSTI)

, including clinical-trial capacity (the average number of sites per trial); trial density per population regions (Eastern Europe, Latin America, Asia, Middle East and Africa) are mostly small players when

Sinskey, Anthony J.

158

Large birefringence and polarization holographic gratings formed in photocross-linkable polymer liquid crystals comprising bistolane mesogenic side groups  

SciTech Connect

Polarization gratings with large birefringence are formed in photoreactive polymer liquid crystals with bistolane moiety and terminal cinnamic acid moiety by the use of polarized ultraviolet interference light and subsequent annealing. The polarized ultraviolet light causes the axis-selective photoreaction between the cinnamic acid groups and subsequent annealing induce the reorientation of peripheral molecules without cross-linking along the cross-linked groups. Long bistolane mesogenic moiety exhibits large birefringence in comparison with a biphenyl mesogenic moiety, the value of the induced birefringence in the bistolane mesogenic liquid crystalline (LC) polymer is strongly dependent on both the grating constant and the wavelength of the reconstruction light.

Emoto, Akira; Matsumoto, Taro; Shioda, Tatsutoshi; Ono, Hiroshi [Department of Electrical Engineering, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188 (Japan); Yamashita, Ayumi; Kawatsuki, Nobuhiro [Department of Materials Science and Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2201 (Japan)

2009-10-01T23:59:59.000Z

159

Optical properties of wide single-mode strip and grating loaded channel waveguides  

SciTech Connect

New wide single-mode strip and grating loaded (SGL) channel waveguides made of silicon nitride on the oxide buffer layer of a planar silicon-on-insulator waveguide are studied. The central 10-lm-wide strip produces a multi-mode channel waveguide and diffraction gratings with a period 0.6 lm built on the structure edges produce mode-dependent additional losses due to radiation to the surrounding medium. The optical properties of these waveguides are discussed using the results of a three-dimensional numerical simulation by the FDTD and BPM methods. It is shown that a wide SGL waveguide is quasi-single-mode one because it has a small propagation loss ({approx} 0.3 dB cm{sup -1}) for the fundamental mode and a high (up to -20 dB cm{sup -1}) loss for the higher order modes. The new SGL waveguides are CMOS compatible and can become basic for fabricating new photonic elements, including tunable optical filters and multi-plexers based on the multireflector technology. (waveguides)

Tsarev, Andrei V [Rzhanov Institute of Semiconductor Physics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk (Russian Federation)

2009-12-31T23:59:59.000Z

160

Linear diffraction grating interferometer with high alignment tolerance and high accuracy  

SciTech Connect

We present an innovative structure of a linear diffraction grating interferometer as a long stroke and nanometer resolution displacement sensor for any linear stage. The principle of this diffractive interferometer is based on the phase information encoded by the {+-}1st order beams diffracted by a holographic grating. Properly interfering these two beams leads to modulation similar to a Doppler frequency shift that can be translated to displacement measurements via phase decoding. A self-compensation structure is developed to improve the alignment tolerance. LightTool analysis shows that this new structure is completely immune to alignment errors of offset, standoff, yaw, and roll. The tolerance of the pitch is also acceptable for most installation conditions. In order to compact the structure and improve the signal quality, a new optical bonding technology by mechanical fixture is presented so that the miniature optics can be permanently bonded together without an air gap in between. For the output waveform signals, a software module is developed for fast real-time pulse counting and phase subdivision. A laser interferometer HP5529A is employed to test the repeatability of the whole system. Experimental data show that within 15 mm travel length, the repeatability is within 15 nm.

Cheng Fang; Fan, Kuang-Chao

2011-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "grated analy sis" 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

Experiences from a Novel Sensor for Fireside Corrosion Monitoring during Grate Combustion of Corn Stover/Wood Chip Blends  

Science Journals Connector (OSTI)

The operation of a pilot-scale online corrosion sensor system was studied at VTTís 100 kW grate pilot plant. The feedstock composition in tests was varied from 100% wood chips to a blend that also contained 40 en-% d.b. corn stover. The mass flow of ...

Timo J. Leino; Martti J. Aho; S. Juhani Gynther; Tommi A. Ruuskanen; Matti H. Hškkinen

2013-08-27T23:59:59.000Z

162

Holographic Storage of Multiple Coherence Gratings in a Bose-Einstein Condensate Yutaka Yoshikawa,1,2,* Kazuyuki Nakayama,2  

E-Print Network (OSTI)

of the condensate, a high conversion efficiency of >70% and a long storage time of >120 s were achieved. DOI: 10Holographic Storage of Multiple Coherence Gratings in a Bose-Einstein Condensate Yutaka Yoshikawa,1 in an elongated cloud of Bose-condensed atoms. Two off-resonant write beams induce superradiant Raman scattering

Torii, Yoshio

163

Novel Subwavelength Grating Surface Emitting Laser Michael C.Y. Huang, Ye Zhou, and Connie J. Chang-Hasnain  

E-Print Network (OSTI)

Novel Subwavelength Grating Surface Emitting Laser Michael C.Y. Huang, Ye Zhou, and Connie J. Chang, USA e-mails: cch@eecs.berkeley.edu Abstract: We present a new class of surface emitting lasers cladding layers (e.g. SiO2 or air) on the top and below. The simplicity of the design and versatility

California at Irvine, University of

164

Long-period fiber grating as wavelength selective element in double-clad Yb-doped fiber-ring lasers  

E-Print Network (OSTI)

Long-period fiber grating as wavelength selective element in double-clad Yb-doped fiber-ring lasers, 42.79.Dj, 42.81.-i 1. Introduction Cladding-pumped ytterbium-doped fiber lasers belong presently fiber laser with the cladding-pumped YDF a significant increase of the average output power can

Paris-Sud XI, Université de

165

Enhanced radiation of an invisible array of sources through a sub-wavelength metal-strip grating and applications  

Science Journals Connector (OSTI)

We experimentally demonstrate dramatically increased radiation from an ďinvisibleĒ source placed next to a sub-wavelength metal strip grating. The invisible source is a novel highly reactive array of antennas excited by a common feed which weakly radiates in the far-zone. The metal grating used is sub-wavelength and non-resonant which typically attenuates the overall radiation of a nearby source especially in the transverse electric polarization. However we show that such a grating screen with proper dimensions placed next to the ďinvisibleĒ source can in fact significantly enhance the radiated field strength far beyond the free space radiation of this ďinvisibleĒ radiator by an order of magnitude. This radiation enhancement is facilitated through the conversion of evanescent waves of the specially designed reactive source into propagating waves and its level is inversely related to the source-grating distance. The physical phenomenon is shown in simulations and measurements at microwaves. This novel radiation enhancement effect is shown to have potential applications in various areas such as proximity sensing detection and measurement of distance.

M. Memarian

2013-01-01T23:59:59.000Z

166

Optoelectronic Interconnects XIII (OE112) Conference Chairs: Alexei L. Glebov, OptiGrate Corp. (USA); Ray T. Chen, The Univ.  

E-Print Network (OSTI)

Optoelectronic Interconnects XIII (OE112) Conference Chairs: Alexei L. Glebov, OptiGrate Corp. (USA); Ray T. Chen, The Univ. of Texas at Austin (USA) Program Committee: Bill Blubaugh, US Conec Ltd. (USA); Swapnajit Chakravarty, Omega Optics, Inc. (USA); John E. Cunningham, Oracle (USA); Allen M. Earman, Intersil

Jahns, J√ľrgen

167

An effective medium study of surface plasmon polaritons in nanostructured gratings using attenuated total reflection  

SciTech Connect

Recent work studied surface plasmon resonances in structured materials by the method of attenuated total reflection using a prism on top of a metallic grating. That calculation considered Transverse Magnetic polarized radiation, involved an expansion in 121 Fourier modes, and found a number of interesting features. Many of these features were attributed to localized plasmons or other factors, which arise from a discrete structure. We use a simple effective medium theory to address the same problem, and find many of the same reflection features observed in the more complex calculation, indicating that localization is not an important factor. We also evaluate the possibility of using some of the new features in the reflection spectrum for bio-sensing and find that the sensitivity of the system to small changes in relative permittivity is increased compared to some standard methods.

Tyboroski, M. H.; Anderson, N. R.; Camley, R. E. [UCCS BioFrontiers Center, University of Colorado at Colorado Springs, Colorado Springs, Colorado 80918 (United States)

2014-01-07T23:59:59.000Z

168

Graphene-based absorber exploiting guided mode resonances in one-dimensional gratings  

E-Print Network (OSTI)

A one-dimensional dielectric grating, based on a simple geometry, is proposed and investigated to enhance light absorption in a monolayer graphene exploiting guided mode resonances. Numerical findings reveal that the optimized configuration is able to absorb up to 60% of the impinging light at normal incidence for both TE and TM polarizations resulting in a theoretical enhancement factor of about 26 with respect to the monolayer graphene absorption (about 2.3%). Experimental results confirm this behaviour showing CVD graphene absorbance peaks up to about 40% over narrow bands of few nanometers. The simple and flexible design paves the way for the realization of innovative, scalable and easy-to-fabricate graphene-based optical absorbers.

Grande, M; Stomeo, T; Bianco, G V; de Ceglia, D; Akozbek, N; Petruzzelli, V; Bruno, G; De Vittorio, M; Scalora, M; Orazio, A D

2014-01-01T23:59:59.000Z

169

Solvent-side observation on vibrational energy transfer by transient grating spectroscopy: Bridged azulene-anthracene  

E-Print Network (OSTI)

Transient grating acoustic spectroscopy has been applied to studies on the vibrational energy relaxation process of the electronic ground state of azulene, two 1-alkylazulenes, and five bridged azulene-anthracenes in three different solvents: 1,1,1-trichloro-1,2,2-trifluoroethane, acetonitrile, and xenon. The solute molecule was vibrationally excited by the photo-excitation of the auzlenyl group to the S1 state through the fast internal conversion, and the rate of solvent thermalization due to the vibrational energy relaxation was determined. The thermalization rates for 1-alkylazulenes and bridged azulene-anthracenes were faster than that of azulene. Based on the results of the thermalization rates of 1-alkylazulenes, we concluded that the acceleration of the energy dissipation from the azulenyl group induced the faster energy dissipation from the solute to the solvent. The vibrational normal mode analysis suggests that the density of the vibrational modes and anharmonic coupling between the vibrational mode...

Fujiwara, Hiroki

2014-01-01T23:59:59.000Z

170

Adaptation of UVSOR-Type Plane-Grating Monochromator in Saga  

SciTech Connect

The plane grating monochromator (PGM) is one of the most useful monochromators in the world. The design concept of the PGM originates from the characteristics of synchrotron radiation itself, namely parallel rays and small source size. Since the performance of the PGM depends on the beam emittance of the storage ring, it is expected that even the used PGM may be utilized in recent facility. Therefore, the UVSOR-type PGM that had been used for more than twenty years in UVSOR was adapted to the university's branch beamline in Saga-LS with several modifications. The performance tests were carried out with a photoelectron spectrometer, and the observed values were compared with the ray-tracing calculation. The results show that the adaptation of the UVSOR-type PGM is good enough to study new functional materials.

Sugiyama, H.; Takahashi, K.; Ogawa, K.; Azuma, J.; Kamada, M. [Synchrotron Light Application Center, Saga University, Saga 840-8502 (Japan)

2010-06-23T23:59:59.000Z

171

A transmission grating spectrograph and its application in both laser plasma and plasma focus  

Science Journals Connector (OSTI)

A new transmission gratingspectrograph for soft x-raymeasurement in pulsed plasmas was designed and studied. The spectrograph has an adjustment system with three degrees of freedom together with an electronic-controlled camera. This design makes it easy to align and use for laser-produced plasmas or the plasma focus. The spectrograph provides spatially resolved spectrum in two dimensions and has a wavelength range of 0.3Ė30 nm. A transmission grating was used to obtain spatially resolved spectra from plasmas produced by laser-irradiated solid target and gas filled plasma focus. Such a spectrograph is suitable for coupling with a soft x-ray streak camera or a soft x-ray charge coupled device detector for time-resolved studies.

X. Feng; M. H. Liu; S. Lee

1997-01-01T23:59:59.000Z

172

A soft x-ray transmission grating imaging-spectrometer for the National Ignition Facility  

SciTech Connect

A soft x-ray transmission grating spectrometer has been designed for use on high energy-density physics experiments at the National Ignition Facility (NIF); coupled to one of the NIF gated x-ray detectors (GXD) it records sixteen time-gated spectra between 250 and 1000eV with 100ps temporal resolution. The trade-off between spectral and spatial resolution leads to an optimized design for measurement of emission around the peak of a 100-300eV blackbody spectrum. Performance qualification results from the NIF, the Trident Laser Facility and VUV beamline at the National Synchrotron Light Source (NSLS), evidence a <100{micro}m spatial resolution in combination with a source-size limited spectral resolution that is <10eV at photon energies of 300eV.

Moore, A S; Guymer, T M; Kline, J L; Morton, J; Taccetti, M; Lanier, N E; Bentley, C; Workman, J; Peterson, B; Mussack, K; Cowan, J; Prasad, R; Richardson, M; Burns, S; Kalantar, D H; Benedetti, L R; Bell, P; Bradley, D; Hsing, W; Stevenson, M

2012-05-01T23:59:59.000Z

173

A soft x-ray transmission grating imaging-spectrometer for the National Ignition Facility  

SciTech Connect

A soft x-ray transmission grating spectrometer has been designed for use on high energy-density physics experiments at the National Ignition Facility (NIF); coupled to one of the NIF gated x-ray detectors it records 16 time-gated spectra between 250 and 1000 eV with 100 ps temporal resolution. The trade-off between spectral and spatial resolution leads to an optimized design for measurement of emission around the peak of a 100-300 eV blackbody spectrum. Performance qualification results from the NIF, the Trident Laser Facility and vacuum ultraviolet beamline at the National Synchrotron Light Source, evidence a <100 {mu}m spatial resolution in combination with a source-size limited spectral resolution that is <10 eV at photon energies of 300 eV.

Moore, A. S.; Guymer, T. M.; Morton, J.; Bentley, C.; Stevenson, M. [Directorate Science and Technology, AWE Aldermaston, Reading, RG7 4PR (United Kingdom); Kline, J. L.; Taccetti, M.; Lanier, N. E.; Workman, J.; Peterson, B.; Mussack, K.; Cowan, J. [Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States); Prasad, R.; Richardson, M.; Burns, S.; Kalantar, D. H.; Benedetti, L. R.; Bell, P.; Bradley, D.; Hsing, W. [Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808 (United States)

2012-10-15T23:59:59.000Z

174

X-Atlas: An Online Archive of Chandra's Stellar High Energy Transmission Gratings Observations  

E-Print Network (OSTI)

The high-resolution X-ray spectroscopy made possible by the 1999 deployment of the Chandra X-ray Observatory has revolutionized our understanding of stellar X-ray emission. Many puzzles remain, though, particularly regarding the mechanisms of X-ray emission from OB stars. Although numerous individual stars have been observed in high-resolution, realizing the full scientific potential of these observations will necessitate studying the high-resolution Chandra dataset as a whole. To facilitate the rapid comparison and characterization of stellar spectra, we have compiled a uniformly processed database of all stars observed with the Chandra High Energy Transmission Grating (HETG). This database, known as X-Atlas, is accessible through a web interface with searching, data retrieval, and interactive plotting capabilities. For each target, X-Atlas also features predictions of the low-resolution ACIS spectra convolved from the HETG data for comparison with stellar sources in archival ACIS images. Preliminary analyses of the hardness ratios, quantiles, and spectral fits derived from the predicted ACIS spectra reveal systematic differences between the high-mass and low-mass stars in the atlas and offer evidence for at least two distinct classes of high-mass stars. A high degree of X-ray variability is also seen in both high and low-mass stars, including Capella, long thought to exhibit minimal variability. X-Atlas contains over 130 observations of approximately 25 high-mass stars and 40 low-mass stars and will be updated as additional stellar HETG observations become public. The atlas has recently expanded to non-stellar point sources, and Low Energy Transmission Grating (LETG) observations are currently being added as well.

Owen W. Westbrook; Nancy Remage Evans; Scott J. Wolk; Vinay L. Kashyap; Joy S. Nichols; Peter J. Mendygral; Jonathan D. Slavin; Bradley Spitzbart; Wayne L. Waldron

2007-12-04T23:59:59.000Z

175

Influencing factors on NOX emission level during grate conversion of three pelletized energy crops  

Science Journals Connector (OSTI)

Abstract NOX emission behavior of three different pelletized energy crops, a herbaceous one, Brassica carinata, a short rotation coppice, Populus sp., and a blend of them, was assessed during fixed grate conversion. Measurements of NOX emissions were done at combustion conditions that yielded both thermal efficiency and CO emissions according to the European norm (EN 303-5:2012), and results compared to limits established by the Austrian deviations. Based on the experimental data, NOX results fulfilled the Austrian restrictions except during combustion of brassica, which exhibited the highest Fuel-N content. The Fuel-NOX was identified as the main formation mechanism. An opposite relation was determined between the specific NOX emissions and the Fuel-N conversion ratio obtained between the N-rich and the N-lean fuels tested here. The influence of the air supply (amount and distribution) on the NOX formation was also noticeable. In general, a higher proportion of air increased the specific NOX emissions and the Fuel-N conversion ratio. Possibilities to control the NOX emissions level by air staging were rather limited, particularly, during combustion of brassica and the blend because of their peculiarities as ash-rich fuels with high slag formation risk. For attaining an appropriate conversion of these fuels, primary air requirements substantially increased. Due to limitations found during the energy crops conversion, efforts to minimize the level of NOX emissions identified here for the troublesome fuels tested should be mainly focused on attaining both a properly designed air supply system and the grate temperature control as well as on conditioning the Fuel-N content, for instance, by blending.

Maryori DŪaz-RamŪrez; Fernando SebastiŠn; Javier Royo; Adeline Rezeau

2014-01-01T23:59:59.000Z

176

High Neutron Fluence Survivability Testing of Advanced Fiber Bragg Grating Sensors  

SciTech Connect

The motivation for the reported research was to support NASA space nuclear power initiatives through the development of advanced fiber optic sensors for space-based nuclear power applications. The purpose of the high-neutron fluence testing was to demonstrate the survivability of fiber Bragg grating (FBG) sensors in a fission reactor environment. 520 FBGs were installed in the Ford reactor at the University of Michigan. The reactor was operated for 1012 effective full power hours resulting in a maximum neutron fluence of approximately 5x1019 n/cm2, and a maximum gamma dose of 2x103 MGy gamma. This work is significant in that, to the knowledge of the authors, the exposure levels obtained are approximately 1000 times higher than for any previously published experiment. Four different fiber compositions were evaluated. An 87% survival rate was observed for fiber Bragg gratings located at the fuel centerline. Optical Frequency Domain Reflectometry (OFDR), originally developed at the NASA Langley Research Center, can be used to interrogate several thousand low-reflectivity FBG strain and/or temperature sensors along a single optical fiber. A key advantage of the OFDR sensor technology for space nuclear power is the extremely low mass of the sensor, which consists of only a silica fiber 125{mu}m in diameter. The sensors produced using this technology will fill applications in nuclear power for current reactor plants, emerging Generation-IV reactors, and for space nuclear power. The reported research was conducted by Luna Innovations and was funded through a Small Business Innovative Research (SBIR) contract with the NASA Glenn Research Center.

Fielder, Robert S.; Klemer, Daniel; Stinson-Bagby, Kelly L. [Luna Innovations, Inc., 2851 Commerce Street, Blacksburg, VA 24060 (United States)

2004-02-04T23:59:59.000Z

177

Plane grating as polar heliostat in eclipse observations of the chromosphere and prominences with special application to studies of Doppler-widened Thomson-scattered Fraunhofer lines  

Science Journals Connector (OSTI)

Attention is drawn to a very simple instrumental arrangement for eclipse observations of the spectra of the chromosphere and prominences using a plane grating as polar heliostat and a short focus camera. A discus...

Yngve ÷hman

1979-06-01T23:59:59.000Z

178

To grate a liquid into tiny droplets by its impact on a hydrophobic micro-grid F. Lapierre, F. Zoueshtiagh, V. Thomy, and A. Merlen  

E-Print Network (OSTI)

To grate a liquid into tiny droplets by its impact on a hydrophobic micro-grid P. Brunet, F (Dated: November 30, 2009) We report on experiments of drop impacting a hydrophobic micro-grid

Brunet, Philippe

179

Measurement method for roll angular displacement with a high resolution by using diffraction gratings and a heterodyne interferometer  

SciTech Connect

The roll angle measurement is difficult to be achieved directly using a typical commercial interferometer due to its low sensitivity in axial direction, where the axial direction is orthogonal to the plane of the roll angular displacement. A roll angle measurement method combined diffraction gratings with a laser heterodyne interferometer is discussed in this paper. The diffraction grating placed in the plane of a roll angular displacement and the interferometer arranged in the plane's orthogonal direction, constitute the measurement pattern for the roll angle with high resolution. The roll angular displacement, considered as the linear, can be tested precisely when the corresponding angle is very small. Using the proposed method, the angle roll measurement obtains the high resolution of 0.002{sup ?}. Experiment has proved its feasibility and practicability.

Tang, Shanzhi, E-mail: shanzhit@gmail.com [Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049 (China) [Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049 (China); School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049 (China); Wang, Zhao [School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049 (China)] [School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049 (China); Gao, Jianmin; Guo, Junjie [State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an 710054 (China)] [State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an 710054 (China)

2014-04-15T23:59:59.000Z

180

Spectrally enhancing near-field radiative heat transfer by exciting magnetic polariton in SiC gratings  

E-Print Network (OSTI)

In the present work, we theoretically demonstrate, for the first time, that near field radiative transport between 1D periodic grating microstructures separated by subwavelength vacuum gaps can be significantly enhanced by exciting magnetic resonance or polariton. Fluctuational electrodynamics that incorporates scattering matrix theory with rigorous coupled wave analysis is employed to exactly calculate the near field radiative heat flux between two SiC gratings. Besides the well known coupled surface phonon polaritons (SPhP), an additional spectral radiative heat flux peak, which is due to magnetic polariton, is found within the phonon absorption band of SiC. The mechanisms, behaviors and interplays between magnetic polariton, coupled SPhP, single interface SPhP, and Wood's anomaly in the near field radiative transport are elucidated in detail. The findings will open up a new way to control near field radiative heat transfer by magnetic resonance with micro or nanostructured metamaterials.

Yang, Yue

2015-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "grated analy sis" 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

Euler-Euler simulation of wood chip combustion on a grate - effect of fuel moisture content and full scale application  

Science Journals Connector (OSTI)

Nowadays, it is common practice to perform CFD calculations for optimisation purposes of technical biomass combustion applications. A numerical model for wood chip combustion on grate firing arrangements has been developed. The model is based on an Euler-Euler approach, enabling a detailed multiphase description of the combustion chamber in terms of flow, turbulence and heat transfer. The model explicitly accounts for interactions between bed and freeboard region and comprises a global description of the whole incineration process associated with wood combustion. For validation purposes, the effect of fuel moisture content in a 240 kWth test facility has been observed experimentally and the results are opposed to the model predictions. Additionally, measurements within a 58 MWth full scale grate firing system have been conducted and the scalability of the numerical model towards industrial applications is investigated.

D. Kurz; U. Schnell; G. Scheffknecht

2013-01-01T23:59:59.000Z

182

Resonant modes of a bottle-shaped cavity and their effects in the response of finite and infinite gratings  

Science Journals Connector (OSTI)

The resonant frequencies of a one-dimensional bottle-shaped cavity embedded in a ground plane are calculated using a modal approach for s and p polarizations. The same formalism is used to solve the problem of scattering from a surface with a finite number of cavities and from an infinite periodic grating. We show numerical results where the resonant behavior is evidenced as dips in the curve of intensity specularly reflected from a surface with one or several bottle-shaped grooves. The surface shape resonances of a single cavity are also shown to have a great influence on the efficiency distribution of the diffracted orders from infinite gratings made of bottle-shaped cavities. The excitation of even and odd modes is analyzed for both polarizations.

Ricardo A. Depine and Diana C. Skigin

2000-04-01T23:59:59.000Z

183

Strangeness Production at SIS measured with HADES  

E-Print Network (OSTI)

n this paper we review the recent results on strangeness production measured by HADES in the Ar+KCl system at a beam energy of 1.756 AGeV. A detailed comparison of the measured hadron yields with the statistical model is also discussed.

,

2009-01-01T23:59:59.000Z

184

Strangeness Production at SIS measured with HADES  

E-Print Network (OSTI)

n this paper we review the recent results on strangeness production measured by HADES in the Ar+KCl system at a beam energy of 1.756 AGeV. A detailed comparison of the measured hadron yields with the statistical model is also discussed.

J. Pietraszko; L. Fabbietti

2009-11-03T23:59:59.000Z

185

EarlyOff: Using House Cooling Rates To Save Energy Microsoft Research, UK and  

E-Print Network (OSTI)

EarlyOff: Using House Cooling Rates To Save Energy Carl Ellis Microsoft Research, UK and Lancaster the house warm while saving energy. We use a previously gathered data set of real-time heating, gas, and occupancy readings from five houses and conduct a data-driven analy- sis of potential energy savings. Using

Hazas, Mike

186

Electrokinetic behavior of two touching inhomogeneous biological cells and colloidal particles: Effects of multipolar interactions  

E-Print Network (OSTI)

, electrorotation and dielectrophoresis under alternating current (ac) applied fields for a pair of touching applications ranging from cancer research to chemical analy- sis of environmental pollutants. During the past the composition and shape of cancer cells differ from those of healthy cells, these differences are reflected

Huang, Ji-Ping

187

738 IEEE TRANSACTIONS ON COMPUTER-AIDED DESIGN OF INTEGRATED CIRCUITS AND SYSTEMS, VOL. 27, NO. 4, APRIL 2008 Power Grid Analysis and Optimization  

E-Print Network (OSTI)

, APRIL 2008 Power Grid Analysis and Optimization Using Algebraic Multigrid Cheng Zhuo, Student Member of power grid analy- sis and optimization techniques, all of which are based on the algebraic of reducing the problem size for power grid analysis and optimization. Next, with the proposed reduction

Hu, Jiang

188

Comparative Ecology and Behaviour of Primates. Proceedings of a conference, London, Nov. 1971. Richard P. Michael and John H. Crook, Eds. Academic Press, New York, 1973. xvi, 848 pp., illus. $34  

Science Journals Connector (OSTI)

...10.1126/science.184.4133.149 Alison Jolly School of Biology, University of...temporal-cluster analy-sis, are we wiser about children, even 149 though we may...public, particularly at $34 a copy. ALISON JOLLY School of Biology, University of...

Alison Jolly

1974-04-12T23:59:59.000Z

189

423A HIGH-PERFORMANCE COMPUTING/NUMERICAL The International Journal of High Performance Computing Applications,  

E-Print Network (OSTI)

423A HIGH-PERFORMANCE COMPUTING/NUMERICAL The International Journal of High Performance Computing and barriers in the development of high-performance computing (HPC) algorithms and software. The activity has computing, numerical analy- sis, roadmap, applications and algorithms, software 1 The High-performance

Higham, Nicholas J.

190

Book Reviews  

Science Journals Connector (OSTI)

...superintendents' roles were collected...and his perceptions concerning...centered about role con-sensus...analy-sis for social scientists...Method and Theory in American...concepts and practices and reached...reasoning, ethical goal-setting...concerning business enterprises...out of a theory of value...made in a social vacuum...political-sociological perspective. Scattered...

1958-04-25T23:59:59.000Z

191

BODY COMPOSITION -ENERGY EXPENDITURE  

E-Print Network (OSTI)

BODY COMPOSITION - ENERGY EXPENDITURE Validation of dual, X-ray absorptiometry (DXA) for body for BW, BMC and FC were significantly correlated with scale BW (r== 0.999), chemical calcium (r=0.992) and chemical fat (r= 0.971).Regression analy- sis showed that BW was accurately mea- sured, but FC

Paris-Sud XI, Université de

192

Graduate Student/ Post-Doctoral Symposium  

E-Print Network (OSTI)

. Riaz) 10:40 - 11:00 a.m. Antonio Posa: "Advisor wall models for immersed boundary meth- ods" (E Session Chair: Kelley Stewart 3:05 - 3:25 p.m. Claire Verhulst: "POD analy- sis of kinetic energy entrainment in large wind farms." (C. Meneveau) 3:25 - 3:45 p.m. Manisha Ganeshan: "Role of convective

Niebur, Ernst

193

Burgers Program for Fluid Dynamics/ University of Maryland, College Park  

E-Print Network (OSTI)

. Riaz) 10:40 - 11:00 a.m. Antonio Posa: "Advisor wall models for immersed boundary meth- ods" (E Session Chair: Kelley Stewart 3:05 - 3:25 p.m. Claire Verhulst: "POD analy- sis of kinetic energy entrainment in large wind farms." (C. Meneveau) 3:25 - 3:45 p.m. Manisha Ganeshan: "Role of convective

Gruner, Daniel S.

194

tive emissions from EVs (e.g., power plant NOx) and GPVs (tailpipe and  

E-Print Network (OSTI)

a few sluggish electric vehicles would cause enough traffic slowing that the gasoline- powered fleet Analy- sis article on battery-powered vehicles (Sept. 1996, p. 402A) serves as a useful remindertive emissions from EVs (e.g., power plant NOx) and GPVs (tailpipe and associated NO.,. emissions

Denver, University of

195

Satellite observation of the subaerial growth of the Atchafalaya Delta, Louisiana  

Science Journals Connector (OSTI)

...Lower Atchafalaya River outlet and the Wax Lake outlet, a manmade channel dredged...through both the Atchafalaya River and the Wax Lake out- lets. Unpublished data from...1951, Oceanographic analy- sis of marine pipeline problems: Texas A and M Research Foundat...

196

Multi-layered bird beaks: a finite-element approach towards the role of keratin in stress dissipation  

Science Journals Connector (OSTI)

...European Synchrotron Radiation Facility (ESRF, Grenoble...was performed in the software package [15]. After...were measured using the software program AnalySIS v...VM) is called the safety factor (SF). Materials...evolution of limb bone safety factor and non-sprawling...

2012-01-01T23:59:59.000Z

197

Some Dynamic Graphics for Spatial Data (with Multiple Attributes) in a GIS  

E-Print Network (OSTI)

Some Dynamic Graphics for Spatial Data (with Multiple Attributes) in a GIS Dianne Cook 1 , Noel. This paper discusses some multivariate exploratory spatial data analy­ sis tools for detecting spatial. canonical correlations, correlation tour, exploratory spatial data anal­ ysis, spatial dependence, spatial

Symanzik, J√ľrgen

198

Some Dynamic Graphics for Spatial Data with Multiple Attributes in a GIS  

E-Print Network (OSTI)

Some Dynamic Graphics for Spatial Data with Multiple Attributes in a GIS Dianne Cook1, Noel Cressie discusses some multivariate exploratory spatial data analy- sis tools for detecting spatial dependence correlations, correlation tour, exploratory spatial data anal- ysis, spatial dependence, spatial statistics 1

Symanzik, J√ľrgen

199

A Conceptual Framework for Semantic Case-based Safety Analysis Olawande Daramola, Tor Stlhane  

E-Print Network (OSTI)

.biffl}@tuwien.ac.at Abstract Hazard and Operability (HAZOP) Analysis and Fail- ure Mode and Effect Analysis (FMEA) are among-based framework for safety analy- sis, which facilitates the reuse of previous HAZOP and FMEA experiences in order application. Key words: Safety analysis, HAZOP, FMEA, ontology, requirements, case-based reasoning, natural

200

Mitigating the Risk of Insider Threats When Sharing  

E-Print Network (OSTI)

Mitigating the Risk of Insider Threats When Sharing Credentials by Muntaha NourEddin Qasem Alawneh requirement. Achieving secure content sharing requires a deep analy- sis and understanding of security threats affecting such a fundamental requirement. We study and analyze one of the major threats which affect secure

Sheldon, Nathan D.

Note: This page contains sample records for the topic "grated analy sis" 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

Attosecond-time-scale multielectron collisions in the Coulomb four-body problem: Traces in classical probability densities  

E-Print Network (OSTI)

of the triple photoionization from the ground state of lithium, for a wide range of energies, by formulating excess energies 8,9 . Moreover, our classical results allow for a detailed analy- sis of the physical by measurement of the electronic angular corre- lation probability: We have shown for excess energies close

Rost, Jan Michael

202

News and Notes  

Science Journals Connector (OSTI)

...operation of the security system was Dr. Vannevar Bush...which our secur-ity system is working at the present...last analy-sis, a tool of the Government. It...facilities as coal-fired steam plants... the 'uranium...cir-culatory and genitourinary systems, complications of pregnancy...

1954-11-12T23:59:59.000Z

203

Gordon Research Conferences  

Science Journals Connector (OSTI)

...ESCA and other modem tools for surface analy-sis...Zircaloy oxidation in steam at high-temperature...Metabolic activation systems for mutagenicity/carcinogenicity...characteristics of the in vitro systems"; Joyce McCann...binding: a predic-tive tool." 14July. Disease...

Alexander M. Cruickshank

1977-03-11T23:59:59.000Z

204

www.wiley-vch.de SundmacherKienlePesch  

E-Print Network (OSTI)

Fuel Cells (MCFC). It covers different aspects of cell operation, analy- sis, optimization and control1 www.wiley-vch.de Sundmacher·Kienle·Pesch Berndt·Huppmann(Eds.) MoltenCarbonateFuelCells This is the first book being purely focused on one of the most important fuel cell technolo- gies, Molten Carbonate

Dettweiler, Michael

205

Atmos. Chem. Phys., 14, 1050910516, 2014 www.atmos-chem-phys.net/14/10509/2014/  

E-Print Network (OSTI)

a global chemical transport model, reported that methanol emissions produce approxi- mately a 1-10509-2014 © Author(s) 2014. CC Attribution 3.0 License. Temporal variations in rainwater methanol J. D. Felix, S. B. This work reports the first comprehensive analy- sis of methanol concentrations in rainwater. Methanol con

Pierce, Jeffrey

206

ACCEPTED TO IEEE TRANS. IMAGE PROCESSING. AUGUST 2007 1 EntropyControlled Quadratic Markov Measure  

E-Print Network (OSTI)

ACCEPTED TO IEEE TRANS. IMAGE PROCESSING. AUGUST 2007 1 Entropy­Controlled Quadratic Markov Measure analy- sis and image editing tasks. Its importance for low-level image processing stems from several, reduction in memory requirements or error reduction will have an important impact in many image processing

Rivera, Mariano

207

What is microfluidics? It is the science and technology of systems that process or manipulate small (109  

E-Print Network (OSTI)

What is microfluidics? It is the science and technology of systems that process or manipulate small of micrometres. The first applications of microfluidic technologies have been in analy- sis, for which they offer for analysis; and small footprints for the analytical devices1 . Microfluidics exploits both its most obvious

Prentiss, Mara

208

Rural Development News 1/2009 Interrelating knowledge processes with  

E-Print Network (OSTI)

Rural Development News 1/2009 23 Interrelating knowledge processes with institutional and cultural is to show how the analy sis of knowledge processes brings meaning into the process of search ing for greater and learning processes within the international network of Integrated Rice and Duck Farming (IRDF) (Rutz 2008

Richner, Heinz

209

Specification and Analysis of the AER/NCA Active Network Protocol Suite in  

E-Print Network (OSTI)

Specification and Analysis of the AER/NCA Active Network Protocol Suite in Real­Time Maude Peter and the Maude formal methodology to the specification and analy­ sis of the AER/NCA suite of active network and the composability of its components, AER/NCA poses challenging new problems for its formal specification

√?lveczky, Peter Csaba

210

Specification and Analysis of the AER/NCA Active Network Protocol Suite in  

E-Print Network (OSTI)

Specification and Analysis of the AER/NCA Active Network Protocol Suite to the specification and analy- sis of the AER/NCA suite of active network multicast protocol compo- nents, AER/NCA poses challenging new problems for its formal specification and analysis. Real-Time Maude

√?lveczky, Peter Csaba

211

Data Mining Tools Irfan Altas  

E-Print Network (OSTI)

Data Mining Tools Irfan Altas School of Information Studies, Charles Sturt University Wagga Wagga discuss several scalable and parallel discovery and predictive data mining tools. They successfully address many of the computational challenges associated with the analy­ sis of data sets with millions

Turlach, Berwin A.

212

Conformal growth of Mo/Si multilayers on grating substrates using collimated ion beam sputtering  

SciTech Connect

Deposition of multilayers on saw-tooth substrates is a key step in the fabrication of multilayer blazed gratings (MBG) for extreme ultraviolet and soft x-rays. Growth of the multilayers can be perturbed by shadowing effects caused by the highly corrugated surface of the substrates, which results in distortion of the multilayer stack structure and degradation of performance of MBGs. To minimize the shadowing effects we used an ionbeam sputtering machine with a highly collimated atomic flux to deposit Mo/Si multilayers on saw-tooth substrates. The sputtering conditions were optimized by finding a balance between smoothening and roughening processes in order to minimize degradation of the groove profile in the course of deposition and at the same time to keep the interfaces of a multilayer stack smooth enough for high efficiency. An optimal value of energy of 200 eV for sputtering Kr{sup +} ions was found by deposition of test multilayers on flat substrates at a range of ion energies. Two saw-tooth substrates were deposited at energies of 200 eV and 700 eV for the sputtering ions. It was found that reduction of the ion energy improved the blazing performance of the MBG and resulted in a 40% gain in the diffraction efficiency due to better replication of the groove profile by the multilayer. As a result of the optimization performed, an absolute diffraction efficiency of 28.8% was achieved for the 2nd blaze order of the MBG with a groove density of 7350 lines/mm at a wavelength of 13.5 nm. Details of the growth behavior of the multilayers on flat and saw-tooth substrates are discussed in terms of the Linear Continuous Model of film growth.

Gawlitza, Peter; Cambie, Rossana; Dhuey, Scott; Gullikson, Eric; Warwick, Tony; Braun, Stefan; Yashchuk, Valeriy; Padmore, Howard

2012-01-23T23:59:59.000Z

213

Variable Spaced Grating (VSG) Snout, Rotator and Rails for use at LLE  

SciTech Connect

The Variable Spaced Grating (VSG) is a spectrometer snout mounted to an X-Ray Framing Camera (XRFC) through the Unimount flange. This equipment already exists and is used at the University of Rochester, Laboratory for Laser Energetics (LLE) facility. The XRFC and the Unimount flange are designed by LLE. The Tilt Rotator fixture that mounts next to the XRFC and the cart rails are designed by LLNL, and are included in this safety note. The other related components, such as the TIM rails and the Unimount flange, are addressed in a separate safety note, EDSN09-500005-AA. The Multipurpose Spectrometer (MSPEC) and VSG are mounted on the TIM Boat through the cart rails that are very similar in design. The tilt rotator combination with the Unimount flange is also a standard mounting procedure. The later mounting system has been included in this safety note. Figure-1 shows the interface components and the VSG snout. Figure-2 shows the VSG assembly mounted on the Unimount flange. The calibration pointer attachment is shown in place of the snout. There are two types of VSG, one made of 6061-T6 aluminum, weighing approximately 3 pounds, and the other made of 304 stainless steel, weighing approximately 5.5 pounds. This safety note examines the VSG steel design. Specific experiments may require orienting the VSG snout in 90 degrees increment with respect to the Unimount flange. This is done by changing the bolts position on the VSG-main body adapter flange to the Unimount adapter plate. There is no hazard involved in handling the VSG during this procedure as it is done outside the target chamber on the cart rail before installing on the TIM. This safety note addresses the mechanical integrity of the VSG structure, the tilt rotating fixture, the cart rails with handle and their connections. Safety Factors are also calculated for the MSPEC in place of the VSG.

Mukherjee, S K; Emig, J A; Griffith, L V; Heeter, R F; House, F A; James, D L; Schneider, M B; Sorce, C M

2010-01-25T23:59:59.000Z

214

A grating-based single-shot x-ray phase contrast and diffraction method for in vivo imaging  

SciTech Connect

Purpose: The purpose of this study is to develop a single-shot version of the grating-based phase contrast x-ray imaging method and demonstrate its capability of in vivo animal imaging. Here, the authors describe the principle and experimental results. They show the source of artifacts in the phase contrast signal and optimal designs that minimize them. They also discuss its current limitations and ways to overcome them. Methods: A single lead grid was inserted midway between an x-ray tube and an x-ray camera in the planar radiography setting. The grid acted as a transmission grating and cast periodic dark fringes on the camera. The camera had sufficient spatial resolution to resolve the fringes. Refraction and diffraction in the imaged object manifested as position shifts and amplitude attenuation of the fringes, respectively. In order to quantify these changes precisely without imposing a fixed geometric relationship between the camera pixel array and the fringes, a spatial harmonic method in the Fourier domain was developed. The level of the differential phase (refraction) contrast as a function of hardware specifications and device geometry was derived and used to guide the optimal placement of the grid and object. Both ex vivo and in vivo images of rodent extremities were collected to demonstrate the capability of the method. The exposure time using a 50 W tube was 28 s. Results: Differential phase contrast images of glass beads acquired at various grid and object positions confirmed theoretical predictions of how phase contrast and extraneous artifacts vary with the device geometry. In anesthetized rats, a single exposure yielded artifact-free images of absorption, differential phase contrast, and diffraction. Differential phase contrast was strongest at bone-soft tissue interfaces, while diffraction was strongest in bone. Conclusions: The spatial harmonic method allowed us to obtain absorption, differential phase contrast, and diffraction images, all from a single raw image and is feasible in live animals. Because the sensitivity of the method scales with the density of the gratings, custom microfabricated gratings should be superior to off-the-shelf lead grids.

Bennett, Eric E.; Kopace, Rael; Stein, Ashley F.; Wen Han [National Heart, Lung, and Blood Institute, National Institutes of Health, Imaging Physics Section, Translational Medicine Branch, 10 Center Drive, MSC 1061, Bethesda, Maryland 20892 (United States)

2010-11-15T23:59:59.000Z

215

Optimized Si/SiO2 high contrast grating mirror design for mid-infrared wavelength range: robustness enhancement  

E-Print Network (OSTI)

A high reflectivity and polarization selective high contrast grating mirror has been designed with the use of an automated optimization algorithm. Through a precise study of the tolerance of the different lengths of the structure, the robustness with respect to the fabrication errors has been enhanced to high tolerance values between 5 % and 210 %. This adjustment of the dimensions of the structure leads to a 250 nm large bandwidth mirror well adapted for a VCSEL application at \\lambda = 2.65 $\\mu$m and can easily be scaled for other wavelengths.

Chevallier, Christyves; Jacquet, Joel; Fressengeas, Nicolas; 10.1016/j.optlastec.2011.09.010

2011-01-01T23:59:59.000Z

216

International Energy Outlook 1998  

Gasoline and Diesel Fuel Update (EIA)

8) 8) Dis tri bu tion Cate gory UC-950 In ter na tional En ergy Out look 1998 April 1998 En ergy In for ma tion Ad min istra tion Of fice of In te grated Analy sis and Fore cast ing U.S. De part ment of En ergy Wash ing ton, DC 20585 This re port was pre pared by the En ergy In for ma tion Ad min istra tion, the in de pend ent sta tis ti cal and ana lyti cal agency within the De part ment of En ergy. The in for ma tion con tained herein should be at trib uted to the En ergy In for ma tion Ad min istra tion and should not be con strued as ad vo cat ing or re flect ing any pol icy po si tion of the De part ment of En ergy or of any other or gani za tion. Con tacts The Inter na tional Energy Out look is pre pared by the Energy Infor ma tion Admin istra tion (EIA). Gen eral

217

GNOSIS: THE FIRST INSTRUMENT TO USE FIBER BRAGG GRATINGS FOR OH SUPPRESSION  

SciTech Connect

The near-infrared is an important part of the spectrum in astronomy, especially in cosmology because the light from objects in the early universe is redshifted to these wavelengths. However, deep near-infrared observations are extremely difficult to make from ground-based telescopes due to the bright background from the atmosphere. Nearly all of this background comes from the bright and narrow emission lines of atmospheric hydroxyl (OH) molecules. The atmospheric background cannot be easily removed from data because the brightness fluctuates unpredictably on short timescales. The sensitivity of ground-based optical astronomy far exceeds that of near-infrared astronomy because of this long-standing problem. GNOSIS is a prototype astrophotonic instrument that utilizes 'OH suppression fibers' consisting of fiber Bragg gratings and photonic lanterns to suppress the 103 brightest atmospheric emission doublets between 1.47 and 1.7 {mu}m. GNOSIS was commissioned at the 3.9 m Anglo-Australian Telescope with the IRIS2 spectrograph to demonstrate the potential of OH suppression fibers, but may be potentially used with any telescope and spectrograph combination. Unlike previous atmospheric suppression techniques GNOSIS suppresses the lines before dispersion and in a manner that depends purely on wavelength. We present the instrument design and report the results of laboratory and on-sky tests from commissioning. While these tests demonstrated high throughput ( Almost-Equal-To 60%) and excellent suppression of the skylines by the OH suppression fibers, surprisingly GNOSIS produced no significant reduction in the interline background and the sensitivity of GNOSIS+IRIS2 is about the same as IRIS2. It is unclear whether the lack of reduction in the interline background is due to physical sources or systematic errors as the observations are detector noise dominated. OH suppression fibers could potentially impact ground-based astronomy at the level of adaptive optics or greater. However, until a clear reduction in the interline background and the corresponding increasing in sensitivity is demonstrated optimized OH suppression fibers paired with a fiber-fed spectrograph will at least provide a real benefit at low resolving powers.

Trinh, Christopher Q.; Ellis, Simon C.; Bland-Hawthorn, Joss; Bryant, Julia; O'Byrne, John [Sydney Institute for Astronomy, School of Physics, The University of Sydney, NSW 2006 (Australia); Lawrence, Jon S.; Horton, Anthony J.; Shortridge, Keith; Case, Scott; Colless, Matthew; Gers, Luke; Lee, Steve; Miziarski, Stan [Australian Astronomical Observatory, 105 Delhi Road, North Ryde, P.O. Box 915, NSW 1670 (Australia); Leon-Saval, Sergio G. [Institute of Photonics and Optical Science, School of Physics, University of Sydney, NSW 2006 (Australia); Couch, Warrick; Glazebrook, Karl [Centre for Astrophysics and Supercomputing, Swinburne University of Technology, P.O. Box 218, Hawthorn, VIC 3122 (Australia); Freeman, Kenneth [Research School of Astronomy and Astrophysics, Australian National University, Weston Creek, ACT 2611 (Australia); Loehmannsroeben, Hans-Gerd [innoFSPEC-Institut fuer Chemie/Physikalische Chemie, Universitaet Potsdam, Karl-Liebknecht-Strasse 24-25, D-14476 Potsdam-Golm (Germany); Haynes, Roger; Roth, Martin M., E-mail: c.trinh@physics.usyd.edu.au [innoFSPEC-Leibniz-Institut fuer Astrophysik Potsdam, An der Sternwarte 16, D-14482 Potsdam (Germany); and others

2013-02-01T23:59:59.000Z

218

Development of pseudo-random binary gratings and arrays for calibration of surface profile metrology tools  

SciTech Connect

Optical Metrology tools, especially for short wavelength (EUV and X-Ray), must cover a wide range of spatial frequencies from the very low, which affects figure, to the important mid-spatial frequencies and the high spatial frequency range, which produces undesirable flair. A major difficulty in using surface profilometers arises due to the unknown Modulation Transfer Function (MTF) of the instruments. Therefore, accurate calibration of profilometers, the understanding of their MTF limitations, and cross calibration between tools represents a considerable challenge for quantitative optical metrology. In previous work the instrumental MTF of a surface profiler was precisely measured using reference test surfaces based on binary pseudo-random (BPR) gratings. Here, they present results of fabricating and using two-dimensional (2D) BPR arrays that allow for a direct 2D calibration of the instrumental MTF. BPR sequences are widely used in engineering and communication applications such as Global Position System, and wireless communication protocol. The ideal BPR pattern has a flat 'white noise' response over the entire range of spatial frequencies of interest. The BPR array used here is based on the Uniformly Redundant Array prescription initially used for x-ray and gamma ray astronomy applications. The URA's superior imaging capability originates from the fact that its cyclical autocorrelation function very closely approximates a delta function, which produces a flat Power Spectrum Density (PSD). Three different BPR array patterns were fabricated by electron beam lithography and ICP etching of silicon. The basic size unit was 200 nm, 400 nm, and 600 nm. Figure 1 shows the fabrication sequence. The 2D BPR arrays were used as standard test surfaces for MTF calibration of the MicroMap{trademark}-570 interferometric microscope with all available objectives. Figure 2 shows representative scanning probe height data for the 400 nm BPR sample. Figure 2 shows the raw Power Spectral Density for 5 different objectives. They demonstrate that the two dimensional BPR array is a very effective calibration standard. However, departures from ideal, such as square sidewall, and uniform etch depth ultimately can limit the accuracy of the calibration. The effects of fabrication imperfections on the efficiency of calibration will be discussed.

Barber, Samuel K.; Soldate, Paul; Anderson, Erik; Cambie, Rosanna; McKinney, Wayne R.; Takacs, Peter Z.; Voronov, Dmytro L.; Yashchuk, Valeriy V.

2009-01-16T23:59:59.000Z

219

2D grating simulation for X-ray phase-contrast and dark-field imaging with a Talbot interferometer  

SciTech Connect

Talbot interferometry is a recently developed and an extremely powerful X-ray phase-contrast imaging technique. Besides giving access to ultra-high sensitivity differential phase contrast images, it also provides the dark field image, which is a map of the scattering power of the sample. In this paper we investigate the potentialities of an improved version of the interferometer, in which two dimensional gratings are used instead of standard line grids. This approach allows to overcome the difficulties that might be encountered in the images produced by a one dimensional interferometer. Among these limitations there are the phase wrapping and quantitative phase retrieval problems and the directionality of the differential phase and dark-field signals. The feasibility of the 2D Talbot interferometer has been studied with a numerical simulation on the performances of its optical components under different circumstances. The gratings can be obtained either by an ad hoc fabrication of the 2D structures or by a superposition of two perpendicular linear grids. Through this simulation it has been possible to find the best parameters for a practical implementation of the 2D Talbot interferometer.

Zanette, Irene; Weitkamp, Timm [European Synchrotron Radiation Facility, 6 rue Jules Horowitz, 38043 Grenoble (France); David, Christian; Rutishauser, Simon [Paul Scherrer Insitute, 5232 Villigen PSI (Switzerland)

2010-04-06T23:59:59.000Z

220

All-Optical Modulation of Localized Surface Plasmon Coupling in a Hybrid System Composed of Photoswitchable Gratings and Au Nanodisk Arrays  

Science Journals Connector (OSTI)

All-Optical Modulation of Localized Surface Plasmon Coupling in a Hybrid System Composed of Photoswitchable Gratings and Au Nanodisk Arrays ... Components of this work were conducted at the Penn State node of the NSF-funded National Nanotechnology Infrastructure Network. ...

Yan Jun Liu; Yue Bing Zheng; Justin Liou; I-Kao Chiang; Iam Choon Khoo; Tony Jun Huang

2011-03-04T23:59:59.000Z

Note: This page contains sample records for the topic "grated analy sis" 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

April 1, 2002 / Vol. 27, No. 7 / OPTICS LETTERS 485 Light trapping in a fiber grating defect by four-wave mixing  

E-Print Network (OSTI)

the structures have a slow frequency response. Our approach is somewhat reminiscent of that of Winful and Perlin9 light in a defect state in a nonuniform fiber grating. The amount of energy deposited is estimated and the optical push broom.5 Here we propose another such demonstra- tion, namely, the storage of light

Sipe,J. E.

222

Temporal characteristics of polarization holographic gratings formed in a photosensitive polymeric film containing N-benzylideneaniline derivative side groups  

SciTech Connect

A polarization holographic grating was recorded in a transparent thin film formed from polymethacrylate with N-benzylideneaniline (NBA) derivative side groups. We measured the real time diffraction properties. The data were analyzed based on a theoretical model that accounted for the distribution of optical anisotropy caused by molecular reorientation as well as for surface relief (SR) deformation caused by molecular motion. Optical anisotropy rapidly increased and then slowly decreased, with increasing recording time. This phenomenon was described based on photoisomerization and photocleavage reactions of the NBA side groups. SR deformation was also induced in the film by polarization holographic recording, without any subsequent processes. The photoinduced optical anisotropy and SR deformation were retained after the recording was turned off.

Sasaki, Tomoyuki, E-mail: sasaki-tomoy@vos.nagaokaut.ac.jp; Shoho, Takashi; Noda, Kohei; Ono, Hiroshi [Department of Electrical Engineering, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188 (Japan); Kawatsuki, Nobuhiro [Department of Materials Science and Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280 (Japan)

2014-04-21T23:59:59.000Z

223

Polarization gratings in the short-pitch approximation: electro-optics of deformed helix ferroelectric liquid crystals  

E-Print Network (OSTI)

Electro-optical properties of deformed helix ferroelectric liquid crystal (DHFLC) cells are studied by using a general theoretical approach to polarization gratings in which the transmission and reflection matrices of diffraction orders are explicitly related to the evolution operator of equations for the Floquet harmonics. In the short-pitch approximation, a DHFLC cell is shown to be optically equivalent to a uniformly anisotropic biaxial layer where one of the optical axes is normal to the substrates. For in-plane anisotropy, orientation of the optical axes and birefringence are both determined by the voltage applied across the cell and represent the parameters that govern the transmittance of normally incident light passing through crossed polarizers. We calculate the transmittance as a function of the applied voltage and compare the computed curves with the experimental data. The theoretical and experimental results are found to be in good agreement.

Alexei D. Kiselev; Eugene P. Pozhidaev; Vladimir G. Chigrinov; Hoi-Sing Kwok

2010-11-19T23:59:59.000Z

224

Optical Transient-Grating Measurements of Spin Diffusion andRelaxation in a Two-Dimensional Electron Gas  

SciTech Connect

Spin diffusion in n-GaAs quantum wells, as measured by our optical transient-grating technique, is strongly suppressed relative to that of charge. Over a broad range of temperatures and dopings, the suppression of Ds relative to Dc agrees quantitatively with the prediction of ''spin Coulomb dra'' theory, which takes into account the exchange of spin in electron-electron collisions. Moreover, the spin-diffusion length, Ls, is a nearly constant 1 micrometer over the same range of T and n, despite Ds's varying by nearly two orders of magnitude. This constancy supports the D'yakonov-Perel'-Kachorovskii model of spin relaxation through interrupted precessional dephasing in the spin-orbit field.

Weber, Christopher P.

2005-12-15T23:59:59.000Z

225

Investigation of ultrafast photothermal surface expansion and diffusivity in GaAs via laser-induced dynamic gratings  

SciTech Connect

This thesis details the first direct ultrafast measurements of the dynamic thermal expansion of a surface and the temperature dependent surface thermal diffusivity using a two-color reflection transient grating technique. Studies were performed on p-type, n-type, and undoped GaAs(100) samples over a wide range of temperatures. By utilizing a 90 fs ultraviolet probe with visible excitation beams, the effects of interband saturation and carrier dynamics become negligible; thus lattice expansion due to heating and subsequent contraction caused by cooling provided the dominant influence on the probe. At room temperature a rise due to thermal expansion was observed, corresponding to a maximum net displacement of {approximately} 1 {Angstrom} at 32 ps. The diffracted signal was composed of two components, thermal expansion of the surface and heat flow away from the surface, thus allowing a determination of the rate of expansion as well as the surface thermal diffusivity, D{sub S}. By varying the fringe spacing of the grating, this technique has the potential to separate the signal contributions to the expansion of the lattice in the perpendicular and parallel directions. In the data presented here a large fringe spacing was used, thus the dominant contribution to the rising edge of the signal was expansion perpendicular to the surface. Comparison of he results with a straightforward thermal model yields good agreement over a range of temperatures (20--300{degrees}K). Values for D{sub S} in GaAs were measured and found to be in reasonable agreement with bulk values above 50{degrees}K. Below 50{degrees}K, D{sub S} were determined to be up to an order of magnitude slower than the bulk diffusivity due to increased phonon boundary scattering. The applicability and advantages of the TG technique for studying photothermal and photoacoustic phenomena are discussed.

Pennington, D.M.

1992-04-01T23:59:59.000Z

226

Development of a soft x-ray diffractometer for a wideband multilayer grating with a novel layer structure in the 2-4 keV range  

SciTech Connect

We have been developing a wavelength-dispersive soft x-ray spectrograph covering an energy region of 50-4000 eV to attach to a conventional electron microscope. Observation of soft x-ray emission in the 2-4 keV range needs a multilayer coated grating. In order to evaluate the performance of the optical component in the energy region, a goniometric apparatus has been newly developed and the preliminary performance has been tested using synchrotron radiation.

Imazono, Takashi; Koike, Masato; Kawachi, Tetsuya; Hasegawa, Noboru; Koeda, Masaru; Nagano, Tetsuya; Sasai, Hiroyuki; Oue, Yuki; Yonezawa, Zeno; Kuramoto, Satoshi; Terauchi, Masami; Takahashi, Hideyuki; Handa, Nobuo; Murano, Takanori [Quantum Beam Science Directorate, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215 (Japan); Device Dept., Shimadzu Corp., 1 Nishinokyo-Kuwabara-cho, Nakagyo-ku, Kyoto 604-8511 (Japan); IMRAM, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577 (Japan); ECBU, JEOL Ltd., 3-1-2 Musashino, Akishima, Tokyo 196-8558 (Japan)

2012-07-11T23:59:59.000Z

227

Measurement of electron-hole friction in an n-doped GaAs/AlGaAs quantum well using optical transient-grating spectroscopy  

SciTech Connect

We use phase-resolved transient grating spectroscopy to measure the drift and diffusion of electron-hole density waves in a semiconductor quantum well. The unique aspects of this optical probe allow us to determine the frictional force between a two-dimensional Fermi liquid of electrons and a dilute gas of holes. Knowledge of electron-hole friction enables prediction of ambipolar dynamics in high-mobility electron systems.

Yang, Luyi; Koralek, J. D.; Orenstein, J.; Tibbetts, D. R.; Reno, J. L.; Lilly, M. P.

2011-04-26T23:59:59.000Z

228

X-ray grating interferometer for materials-science imaging at a low-coherent wiggler source  

Science Journals Connector (OSTI)

X-ray phase-contrast radiography and tomography enable to increase contrast for weakly absorbing materials. Recently x-raygratinginterferometers were developed that extend the possibility of phase-contrast imaging from highly brilliant radiation sources like third-generation synchrotron sources to non-coherent conventional x-ray tube sources. Here we present the first installation of a three gratingx-rayinterferometer at a low-coherence wigglersource at the beamline W2 (HARWI II) operated by the Helmholtz-Zentrum Geesthacht at the second-generation synchrotron storage ring DORIS (DESY Hamburg Germany). Using this type of the wiggler insertion device with a millimeter-sized source allows monochromatic phase-contrast imaging of centimeter sized objects with high photon flux. Thus biological and materials-science imaging applications can highly profit from this imaging modality. The specially designed gratinginterferometer currently works in the photon energy range from 22 to 30 keV and the range will be increased by using adapted x-ray optical gratings. Our results of an energy-dependent visibility measurement in comparison to corresponding simulations demonstrate the performance of the new setup.

Julia Herzen; Tilman Donath; Felix Beckmann; Malte Ogurreck; Christian David; JŁrgen Mohr; Franz Pfeiffer; Andreas Schreyer

2011-01-01T23:59:59.000Z

229

Damage Detection of CFRP Plates by Full-Spectral Analysis of a Fibre Bragg Grating Sensor Signal  

SciTech Connect

This paper describes the measurement of average strain, strain distribution and vibration of cantilever beam made of Carbon Fiber Reinforced Plastics (CFRP), using a single Fibre Bragg Grating (FBG) sensor mounted on the beam surface. Average strain is determined from the displacement of the peak wavelength of reflected light from the FBG sensor. Unstrained reference FBG sensors were used to compensate for temperature drift and the photoelastic coefficient (P{sub e}), which was used to calculate the gauge factor. Measured strains agree with those measured by a resistance foil strain gauge attached to the sample. Stress distributions are measured by monitoring the variation in the full width half maximum (FWHM) values of the reflected spectrum, using a proposed optical analytical model, described in the paper. FWHM values were measured for both the cantilever test beam and a for a reference beam, loaded using a four-point bending rig. The trend of the stress distribution for the test beam matches with our analytical model, however with a relatively large noise present in the experimentally determined data. The vibration of cantilever beam was measured by temporal analysis of the peak reflection wavelength. This technique is very stable as measurements are not affected by variations in the signal amplitude. Finally an application of FBG sensors for damage detection of CFRP plates is demonstrated, by measuring the average strain and natural frequency. With small defects of different sizes applied to the CFRP plate, average strains were seen to increase with damage size and the natural frequency decreased with damage size.

Mizutani, Yoshihiro [Optical Non-Destructive Testing Laboratory, Faculty of Aerospace Engineering, Delft University of Technology, Kluyverweg 1, 2600 GB Delft (Netherlands); Solid and Structures Engineering Laboratory, Department of Mechanical Sciences and Engineering, Tokyo Institute of Technology, Japan, 2-12-1-I1-70, Ookayama, Meguro-ku, Tokyo 152-8552 (Japan); Groves, Roger M. [Optical Non-Destructive Testing Laboratory, Faculty of Aerospace Engineering, Delft University of Technology, Kluyverweg 1, 2600 GB Delft (Netherlands)

2010-05-28T23:59:59.000Z

230

Potl,,]) u.s. DEPARTMENT OF ENERGY EERE PROJECT MANAGEMENT CENTER  

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

Potl,,]) Potl,,]) u.s. DEPARTMENT OF ENERGY EERE PROJECT MANAGEMENT CENTER NEPA DETERMINATION RECIPIENT: North Carolina State University- North Carolina Solar Center PROJECT TITLE: Southem Mid-Atlantic Provider of Solar Instructor Trajning Program Page 1 of2 STATE: NC Funding Opportunity Announcement Number Procurement Instrument Number NEPA Control Number CID Number DE-FOA·()()()()()78 DE-EEOOO5674 GFO-OOO5674-OO1 0 Based on my re"iew ofthe inrormation concerning the proposed action, as NEPA Compliance Officer (authorized under DOE Order451.IA).1 have made the following dt'tenninatioD: ex. EA, EIS APPENDIX AND NUMBER: Description: A9 Infonnation gathering, analy sis, and dissemination Informabon gathenng (including, but not limited to, literature surveys, mventories, site VIsits, and audits), data analySis

231

Commissioning of a Soft X-ray Beamline PF-BL-16A with a Variable-Included-Angle Varied-Line-Spacing Grating Monochromator  

SciTech Connect

The design and commissioning of a new soft X-ray beamline, BL-16A, at the Photon Factory is presented. The beamline consists of a pre-focusing mirror, an entrance slit, a variable-included-angle varied-line-spacing plane grating monochromator, and a post-focusing system as usual, and provides circularly and linearly polarized soft X rays in the energy range 200-1500 eV with an APPLE-II type undulator. The commissioning procedure for the beamline optics is described in detail, especially the check of the focal position for the zero-th order and diffracted X rays.

Amemiya, Kenta; Toyoshima, Akio; Kikuchi, Takashi; Kosuge, Takashi; Nigorikawa, Kazuyuki; Sumii, Ryohei; Ito, Kenji [Institute of Materials Structure Science, High Energy Accelerator Research Organization, 1-1 Oho, Tsukuba, Ibaraki 305-0801 (Japan)

2010-06-23T23:59:59.000Z

232

High precision in-cylinder gas thermometry using Laser Induced Gratings: Quantitative measurement of evaporative cooling with gasoline/alcohol blends in a GDI optical engine  

Science Journals Connector (OSTI)

Abstract The first application of Laser Induced Thermal Gratings Spectroscopy (LITGS) for precision thermometry in a firing GDI optical engine is reported. Crank-angle resolved temperature values were derived from LITGS signals generated in fuel vapour with a pressure dependent precision in the range 0.1Ė1.0% allowing differences in evaporative or charge cooling effects arising from a variety of ethanol and methanol blends with a model gasoline fuel to be quantified. In addition, fluctuations in temperature arising from cyclic variations in compression were directly detected and measured.

Ben Williams; Megan Edwards; Richard Stone; John Williams; Paul Ewart

2014-01-01T23:59:59.000Z

233

Retrospective Analysis (1998-2011) of the Mutton Snapper (Lutjanus analis) Landings  

E-Print Network (OSTI)

Caye, Gladden Spit & Silk Cayes Marine Reserve, Belize Executive Report By Pablo Granados-Dieseldorff Applied Biodiversity Science NSF-IGERT Doctoral Program Department of Geography Texas A&M University internship in fulfillment of an international conservation exercise for the Applied Biodiversity Science (ABS

234

Sškerhetstšnkandet i Finland och Estland pŚ 2000-talet - en jšmfŲrande analys.  

E-Print Network (OSTI)

??Avsikten med denna pro gradu-avhandling var att undersŲka hur den officiella sškerhetspolitiken presenteras och artikuleras. ForskningsfrŚgan var fŲljande: Hur har sškerheten artikulerats i Finland respektiveÖ (more)

Kotka-Bystedt, Anna

2006-01-01T23:59:59.000Z

235

E-Print Network 3.0 - analys med fokus Sample Search Results  

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

Information Sciences 100 I. Projektinformation Projekttitel Summary: mulighederne for BIPV. Primrt i mindre skala og ikke udelukkende med fokus p, at det skulle vre i......

236

.' .~ J.:'Arh ApplkAflnn Analy&h SBand Trnntittt'r  

E-Print Network (OSTI)

documents the Parts Application Analysis (PAA) performed on the Data Transmitter and its Telemetry circuitry in the attached PAA worksheets refer to one Transmitter only. The PAA data show that all Transmitter electronicHis (PAA) has been updated to reflect the modifications to the Data Transmitter circuit since the original

Rathbun, Julie A.

237

SIS - TMS: A Thesaurus Management System for Distributed Digital Collections  

Science Journals Connector (OSTI)

The availability of central reference information as thesauri is critical for correct intellectual access to ... There is a continuous raise in interest in thesauri, and several thesaurus management systems have ...

Martin Doerr; Irini Fundulaki

1998-01-01T23:59:59.000Z

238

1 INTRODUCTION Evaluating safety instrumented systems [SIS] reliabil-  

E-Print Network (OSTI)

offshore, military, or nuclear power plant activities. However, the influencing fac- tors of many systems

Paris-Sud XI, Université de

239

Heavy ion physics challenges at Bevalac/SIS energies  

SciTech Connect

This paper discusses where the future of higher energy heavy ion acceleration may lead in terms of understanding the nucleus. The discussion concerns obstacles to formulating an equation of state for nuclear matter at high temperature and density. Implications of this research for astrophysical problems is also presented. (LSP)

Gyulassy, M.

1987-11-01T23:59:59.000Z

240

An experimental study of combustion and emissions of two types of woody biomass in a 12-MW reciprocating-grate boiler  

Science Journals Connector (OSTI)

Abstract The gaseous emissions of primary concern from biomass combustion are nitrogen oxides (NOX), carbon monoxide, and various unburned gaseous components. Detailed characterization of the gas in the hot reaction zones is necessary to study the release, formation, and evolution of the gas components. In the present study, gas temperature and concentration were measured in a 12-MWth biomass-fired reciprocating-grate boiler operated with over-fire air and flue-gas recirculation. Temperature measurement was combined with flue gas quenching and sample gas extraction using two water-cooled stainless-steel suction pyrometers. The concentration profiles of O2, NO, and CO were experimentally determined throughout the furnace, and the profile gas temperature was measured in several positions inside the furnace for the two types of woody biomass studied. For both fuels, the gas temperature varied between approximately 450†įC (average primary chamber temperature) and 1200†įC (average secondary chamber temperature). The concentration profiles of CO and O2 suggested no conclusive difference between the two types of biomass. However, the local mean concentrations of NO and NOX emission factors (measured in the stack) were higher for Greenery fuel due to its higher nitrogen content than that of Standard fuel.

Hamid Sefidari; Narges Razmjoo; Michael Strand

2014-01-01T23:59:59.000Z

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


241

A GIS-based Spatial Model for Predicting Habitat Suitability for Juvenile Mutton Snapper (Lutjanus analis) in Belize  

E-Print Network (OSTI)

redes de √Āreas Marinas Protegidas. Este trabajo eval√ļa el uso del enfoque ecosist√©mico en el manejo

242

Examen cri?tico-anali?tico de las ilustraciones encontradas en tres Celestinas: (Burgos, 1499; Sevilla, 1502; Valencia, 1514)  

E-Print Network (OSTI)

de los tallados. . . . C. Comentario Social D. Simbolismo Artistico E. Jerarquia de las series de acuerdo a la calidad de los tallados. . . . . . . . . . . 1. Detalles. 2. Montaje de los tallados. . . . . . . . . 3. Medidas promedio y ubicacion... MEDIDA PROMEDIO DE LAS TRES EDICIONES 94 Tabla 5. 2 UBICACION DE LOS TALLADOS EN LAS TRES EDICIONES 95 CAPITULO I Nihil Sine Cavsa INTRODUCCION Una primera etapa para el presente estudio supone la formulacidn de ideas concretas del estudio de la...

Reyes-Dura?n, Marti?n

2012-06-07T23:59:59.000Z

243

A analysis of the cathode coupled amplifier  

E-Print Network (OSTI)

AN ANALySIS 0 TH CATHODE COOFL D ~iPLIPIER A Thesis by FORREST JACKS RETLING-. . R Approved as to style and content by: Chairman of Committee 'Head of Department August, 1951 AN ANALYSIS OF THE CATHODE COUPLED. AMPLIFIER by FORHEST JAMES.... The Cathode-Coupled Amplif 1er Circuit 2. The Cathode-Coupled Amplif ier Circuit shnwing a. c. components only 3. The Approximate A. C. Fquivalent, Circuit Page 17 4 ~ Aoproximate Equivalent C1rcu its f' or Calculating Output Impedances 22 5...

Hetlinger, Forrest James

2012-06-07T23:59:59.000Z

244

Warm absorbers in X-rays (WAX), a comprehensive high resolution grating spectral study of a sample of Seyfert galaxies: I. A global view and frequency of occurrence of warm absorbers  

E-Print Network (OSTI)

We present results from a homogeneous analysis of the broadband 0.3-10 keV CCD resolution as well as of soft X-ray high-resolution grating spectra of a hard X-ray flux-limited sample of 26 Seyfert galaxies observed with XMM-Newton. Our goal is to characterise the warm absorber (WA) properties along the line-of-sight to the active nucleus. We significantly detect WAs in $65\\%$ of the sample sources. Our results are consistent with WAs being present in at least half of the Seyfert galaxies in the nearby Universe, in agreement with previous estimates . We find a gap in the distribution of the ionisation parameter in the range $0.5warm absorber flow is probably constituted by a clumpy distribution of discrete clouds rather than a continuous medium. The distribution of the WA column densities for the sources with broad Fe K$\\alpha$ lines are similar to those sources which do not have broadened emission l...

Laha, Sibasish; Dewangan, Gulab C; Chakravorty, Susmita; Kembhavi, Ajit K

2014-01-01T23:59:59.000Z

245

Gas-phase generations and rearrangement of silathiones, R sub 2 Si=S  

SciTech Connect

Three routes are explored for the generation of silathiones: (1) the retroene elimination of propene from allythiodimethylsilane and 1-allythio-1-hydrido-1,2,2,2-tetramethylsilane; (2) the reaction of silylene, Me{sub 2}Di, with carbon disulfide which is thought to form a transient 3-membered ring with CS{sub 2} and the elimination of carbon disulfide to produce diethylsilathione; and (3) the beta-elimination of bis(trimethylsilythio)dimethylsilane. All these methods are explored in some detail. A second example of a silathione-silylene isomerization was observed in the pyrolysis of 1,1-bis(trimethylsilythio)-1,2,2,2-tetramethyldisilane. 89 refs., 5 figs., 10 tab. (BM)

Kim, Chong Bok.

1991-01-08T23:59:59.000Z

246

Engineering applications of soil information system (sis): precision irrigation and drainage systems design  

E-Print Network (OSTI)

of conservation of mass, which states that any change in the moisture content of the soil is the difference between incoming and outgoing flows for a given soil volume (Linsey and Franzini, 1987). The hydrological systems to be modeled with the water balance...

Ceylan, Bilge Kagan

2009-05-15T23:59:59.000Z

247

A Low Noise NbTiN-based 850 GHz SIS Receiver for the  

E-Print Network (OSTI)

the 350 micron atmospheric window. This frequency band lies entirely above the energy gap of niobium (700 that consists of two Nb/AlN/NbTiN tunnel junctions, NbTiN thin-film microstrip tuning elements, and a Nb window was deployed at the CSO. It used a novel 1 ¬Ķm thick Silicon Nitride membrane which support an all

248

Requests are subject to edit upon entering into SIS+ ACTIVITY LOG  

E-Print Network (OSTI)

Subject code *** *** *** *** 12/15/2008 EHS NUTR 280 Ecotourism Subject code/prereq *** *** *** *** 12

Farritor, Shane

249

Development of an Electrically Small Vivaldi Antenna: The CReSIS Aerial Vivaldi (CAV-A)  

E-Print Network (OSTI)

-A ... 48 Figure 3.27 Ė Return loss vs. frequency, +/- 10% taper rate variation from CAV-A. 50 Figure A.1 Ė CAV-A simulation layout...................................................................... 57 Figure A.2 - Wave port orientation....5 2.5 29 3 13 3 [2 9] CP W 6 18 0.4 5 9 3 36 0 12 0 [3 0] M 7.5 9 0.1 8 11 7.5 55 0 37 5 [3 6] O 30 36 0.1 8 4 2.8 80 0 56 0 [4 9] CP W , A 2 8 0.6 0 76 64 10 13 85 3 AP An tip od al M Mi cro str ip fee d S Str ipl ine fe ed CP W Co pla na r w av eg...

Panzer, Benjamin Garrett

2007-12-12T23:59:59.000Z

250

Analys av skillnader mellan internationell och svensk rapportering av intršffade hšndelser pŚ kšrnkraftverk; Analysis of differences between international and Swedish reporting of events at nuclear power plants.  

E-Print Network (OSTI)

?? Report of diploma work conducted at the Swedish Radiation Safety Authority (SSM) as part of the bachelors program in Nuclear Engineering at Uppsala University.Ö (more)

Strandman, Lennart

2012-01-01T23:59:59.000Z

251

Fiber Grating Moisture And Chemical Sensing System  

DOE Patents (OSTI)

A vane for a stator of a variable-geometry turbine, in particular for aeronautical engines, has an airfoil profile and a pair of hinge portions, which are carried by the airfoil profile and enable the airfoil profile to be coupled to a support structure of the stator so as to be rotatable about an axis of adjustment; the vane also has internal channels that allow a flow of air to pass through in order to cool the hinge portions.

Schipani, Claudia (Turin, IT); Spano, Ennio (Turin, IT); Dalle Crode, Domenico (Turin, IT)

2004-01-27T23:59:59.000Z

252

COS FUV Grating Holographic Recording Specification  

E-Print Network (OSTI)

-12-98 J. Andrews, COS Experiment Manager, CU/CASA Date Approved By: J. Green 11-13-98 J. C. Green, COS/Handling:........................................................................................ 6 3.4.3 Solvents.....................................................

Colorado at Boulder, University of

253

Submicrometer gratings for solar energy applications  

Science Journals Connector (OSTI)

Diffractive optical structures for increasing the efficiency of crystalline silicon solar cells are discussed. As a consequence of the indirect band gap, light absorption becomes very...

Heine, Claus; Morf, Rudolf H

1995-01-01T23:59:59.000Z

254

Acknowledgments: we are grateful to Dr Descazeaud,  

E-Print Network (OSTI)

transfusion reaction in children with sickle cell disease Mariane de Montalembert,1 Marie-Dominique Dumont,2 is a cornerstone of the management of sickle cell disease but carries a high risk of hemolytic transfusion reaction and mimicked other complications of sickle cell disease. In most of our cases, no new antibody was identified

Boyer, Edmond

255

U.S. DEPARTMENT OF ENERGY EERE PROJECT MA.>.JAGEMENT CENTER  

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

, .* !. , .* !. U.S. DEPARTMENT OF ENERGY EERE PROJECT MA.>.JAGEMENT CENTER NEPA DETERMINATION RECIPIENT:Laram!e County Community College PROJECT TITLE: LeGe Ulilty-Scale Wind Energy Technology Page 1 of2 STATE: WY Funding Opportunity Announcement Number Procurement Instrument Number NEPA Control Number CID Number DE-PS36-09G099OO9 DE-EEOOOO538 GFO-10-052 0 Based on my review of the information concerning the proposed action, as Nt:PA Compliance Officer (autbori7.ed under DOE Order 451.1A), I have made the following determination: ex, EA, EIS APPENDIX AND NUMBER: Description: A9 Information gathenng (including, but not limited to, literature surveys, Inventones, audits), data analySIS (including computer modeling), document preparation (such as oonceptual des'9n or feasibility studies, analytical energy supply

256

u.s. DEPARTMENT OF ENERGY EERE PROJECT MANAGEMENT CENTER NEPA DETERl\IIINATION  

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

Utl Utl ) u.s. DEPARTMENT OF ENERGY EERE PROJECT MANAGEMENT CENTER NEPA DETERl\IIINATION Page 1 of2 RECIPIENT:City of Baltimore STATE: MD PROJEcr TITLE: EECBG Program/Bike Parking Racks/Stand¬∑ Baltimore City, MD funding Opportunity Announ¬ęment Number Pnxurement Instrument Number NEPA Control Number CID Number DE-FOA-OOOOO13 DE-EEOOOO738 GFo.oooo738-003 G0738 Based on my review ortbe inrormation concer ning the proposed action, as NEPA Compliance Officer (authorized under DOE Order 4.5I.tA). I have made the rollowing determination: CX. EA, EIS APPENDIX AND NUMBER: Description: A9 Infomation gathering, analysis, and d isseminatio n InformatIOn gathenng (including, but not limited to, literature surveys, Inventories SIte VISitS, and audits), data analySIs (including, but not limited to, romputer modeling), document preparatIOn (including, but not limited

257

ch_3  

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

0 0 3.0 Alterna Alterna tiv tiv es es 3-1 DOE/EIS-0287 This chapter describes the alternatives for waste processing and facility disposi- tion analyzed in this environmental impact statement (EIS) as well as alter- natives eliminated from detailed analy- sis. As required by the Council on Environmental Quality (CEQ) regula- tions implementing the National Environmental Policy Act (NEPA), a No Action alternative is also included. This chapter identifies the U.S. Department of Energy's (DOE's) Preferred Alternative as well as the State of Idaho's Preferred Alternative, which is different from that identified by DOE. Some of the alternatives include one or more options. The options are described in the context of the alternative(s) they fall under, but could be used or com-

258

U.S. DEPARTMENT OF ENERGY EERE PROJECT MANAGEMENT CENTER NEPA DETERMINATION  

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

University of Califomia, Los Angeles STATE: University of Califomia, Los Angeles STATE: CA PROJECT TITLE: Development of High Operating Temperature Heat Transfer Fluids for Solar Thermal Power Generation Fund ing Opportunity Announumcnt Number Procurement Instrument Number NEPA Control Number CID Number DE-FOA..()()()567 DE·EEOOO5941 GF0-0005941-OO1 Based on my review or the information concerning the proposed action, as NEPA Compliance Officer (authoriud under DOE Order 451.IA). I have made the (ollowing determination: ex, EA, [IS APPENDIX AND NUMBER: Description : A9 Infonnation gathering, analysis, and dissemination Information gathering (including, but not limited 10, literature surveys, Inventones, site VISits, and audits) . data analySis (including, but not limited to, computer modeling)

259

A  

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

major major purpose of the Techni- cal Information Center is to provide the broadest dissemination possi- ble of information DOE'S Research and Reports to business, academic community, contained in Development industry, the and federal, state and local governments. Although a small portion of this report is not reproducible, it is being made available to expedite the availability of information on the research discussed herein. 1 ~&U~ -86-4339 LA-UR--86-4339 DE87 003755 flTL~ ANALySIS OF PICOSECOND PULSEDLASERMELTED GRAPHITE AUWMS). J, Steinbeck, ~. Braunsteln, J. Speck, M. S. I')resselhaus, C. Y. Huang, A. M. Malvezzi, and N. Bloembergen DUBMITTEDTO Procccdings 'f the SympoHlum on Beam-Solid InteractlonaS Uwton, MA, December 1-6, 1986 DISCLAIMER "rhis rcpwI wcc prcpmcd s .wr ummun( of worh qrrwrwrcd hy mn npwy d lhc Unltcd '$lnlu (iovcrnrnd. Nellhcr IIW ( hrikrl Slates

260

A New 60-cm Radio Survey Telescope with the Sideband-Separating SIS Receiver for the 200 GHz Band  

Science Journals Connector (OSTI)

......independently by four signal-generators (SG). The LO frequencies...corrected by a fomula with atmospheric temperature, pressure, and water vapor content used for the...the formula replacing the atmospheric the refractive index given......

Taku Nakajima; Masahiro Kaiden; Jun Korogi; Kimihiro Kimura; Yoshinori Yonekura; Hideo Ogawa; Shingo Nishiura; Kazuhito Dobashi; Toshihiro Handa; Kotaro Kohno; Jun-Ichi Morino; Shin?ichiro Asayama; Takashi Noguchi

2007-10-25T23:59:59.000Z

Note: This page contains sample records for the topic "grated analy sis" 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

ENGR 3502 Open Source Humanoid Robots Instructor permission only you need to request permission in SIS and provide the information  

E-Print Network (OSTI)

, design and 3D- print a "body", figure out the Linux open-source C++ framework and make the robot do

Acton, Scott

262

Analys av passiva kylningsmetoder vid tillšmpning Ųver en hotspot genom analytiska och numeriska simuleringar; Analysis of passive cooling methods when applied to a hotspot through the use of analytical and numerical simulations.  

E-Print Network (OSTI)

?? I ett marint framdrivningssystem byggt av Rolls-Royce Marine i Kristinehamn, kallat POD Propulsion - MermaidTM, kyls systemets yttre delar med fo?rbistro?mmande vatten. Det kylandeÖ (more)

Jadrijevic, Boris

2014-01-01T23:59:59.000Z

263

Berškning av všrmeenergifŲrluster i flerbostadshus genom analys av den totala fjšrrvšrmeenergianvšndningen; Calculation of the thermal energy losses in apartment buildings through analyze of the total district thermal energy consumption .  

E-Print Network (OSTI)

?? This thesis has been carried out on behalf of IV Produkt AB and intends to set an average ratio of thermal energy losses inÖ (more)

Fredhav, Dennis

2012-01-01T23:59:59.000Z

264

COS NUV Grating Substrate Specification Date: August 20, 2001  

E-Print Network (OSTI)

Experiment Manager, CU/CASA Date Approved By: J. C. Green, COS Principal Investigator, CU/CASA Date Center/Handling: ............................................................................................3 3.4.3 Solvents.........................................................................................................

Colorado at Boulder, University of

265

Observation of pulsed medical ultrasound gratings in the optical farfield  

Science Journals Connector (OSTI)

A simple optical method is described for studying ultrasonic pulses as short as two or three cycles in duration in the low?megahertz frequency range. An incident collimated light beam having a width of one ultrasound wavelength is observed in the optical farfield of the ultrasonicgrating midway between the maxima of the central and first diffraction orders. A close approximation to both the amplitude and phase of the acoustical pressure along the light path is obtained. The simplicity and reproducibility of this method warrants its consideration as a procedure for calibration and comparison of the transmit pulse characteristics of medical ultrasound systems. [Work supported by NINCDS Grant NS?06655 and a grant from North Carolina United Way.

W. A. Riley; R. W. Barnes

1977-01-01T23:59:59.000Z

266

Numerical solution of an inverse diffraction grating problem from ...  

E-Print Network (OSTI)

Feb 5, 2013 ... An efficient continuation method is developed to recover the Fourier coefficients of the periodic ... design problems in diffractive optics, it is intended to design a .... ?n ? 0; the free-space quasi-periodic Green's function is.

2013-02-02T23:59:59.000Z

267

Modulation of near-field heat transfer between two gratings  

E-Print Network (OSTI)

We present a theoretical study of near-field heat transfer between two uniaxial anisotropic planar structures. We investigate how the distance and relative orientation (with respect to their optical axes) between the objects affect the heat flux. In particular, we show that by changing the angle between the optical axes it is possible in certain cases to modulate the net heat flux up to 90% at room temperature, and discuss possible applications of such a strong effect.

Svend-Age Biehs; Felipe S. S. Rosa; Philippe Ben-Abdallah

2011-05-18T23:59:59.000Z

268

Inflight calibration of the XMMNewton Reflection Grating Spectrometers  

E-Print Network (OSTI)

, 5232 Villigen, Switzerland c Space Research Organization of the Netherlands, Sorbonnelaan 2, 3584 CA Astrophysics Laboratory, Columbia University, 550 West 120th Street, New York, NY 10027, USA ABSTRACT of the focused light and diffracts it to a secondary focus, the other half being available for two of the three

Audard, Marc

269

Spectrally broadband channeled imaging polarimeter using polarization gratings  

E-Print Network (OSTI)

polarimeters (CIP) [1]. Here, we focus on developing the technique of CIP [3-6]. In CIP, the 2-dimensional an instrumentation improvement for CIP, described in our previous publications. For further theoretical derivations version of our white-light CIP, originally based on a modified Sagnac interferometer [8, 9

Dereniak, Eustace L.

270

Reflective silicon binary diffraction grating for visible wavelengths  

E-Print Network (OSTI)

-mail: marco.fiorentino@hp.com Received January 31, 2011; revised March 17, 2011; accepted March 19, 2011

Li, Jingjing

271

Performance and optimization of X-ray grating interferometry  

Science Journals Connector (OSTI)

...Kundel, and RV. Metter 2000 Handbook of medical imaging: physics and psychophysics, 2nd edn...Proc. Medical Imaging 2013: Physics of Medical Imaging, Lake Buena...Proc.Medical Imaging 2011: Physics ofMedical Imaging, Lake Buena...

2014-01-01T23:59:59.000Z

272

Dependence of surface plasmon polarization conversion on the grating pitch  

Science Journals Connector (OSTI)

A polarization conversion of linearly polarized light incident on a cross-corrugated metal surface may occur due to the optical energy exchange between the surface plasmon (SP)...

Sabat, Ribal Georges; Rochon, Nathan; Rochon, Paul

2010-01-01T23:59:59.000Z

273

Fiber Bragg Grating Cryo-Sensors for Superconducting Accelerator Magnets  

E-Print Network (OSTI)

The design, fabrication and tests of the new generation of superconducting magnets for the High Luminosity upgrade of the Large Hadron Collider (HL - LHC) require the support of an adequate sensing technology able to assure the integrity of the strain sensitive and brittle superconducting cables through the whole service life of the magnet: assembly up to 150 MPa, cool down to 1.9 K and powering up to about 16 kA. A precise temperature monitoring is also needed in order to guarantee the safe working condition of the superconducting cables in the power transmission lines (SC - Link) designed to feed the magnet over long distance. Temperature and strain FBGs based monitoring systems have been implemented in the first SC-Link prototype and in two subscale dipole magnets and tested in the cryogenic test facility at CERN at 30 K, 77 K and 1.9 K.

Chiuchiolo, A; Perez, J; Bajas, H; Consales, M; Giordano, M; Breglio, G; Cusano, A

2014-01-01T23:59:59.000Z

274

Estimativa de consumo de energia de c√digo ANSI-C para sis- temas embarcados: uma abordagem baseada em simula√√o estoc√stica.  

E-Print Network (OSTI)

??Embedded Systems are present in most daily activities with many different purposes. Generally, embedded systems have several design constraints, such as memory size, power source,Ö (more)

Angelo Roncalli de Novaes Pires Ribeiro

2007-01-01T23:59:59.000Z

275

STATEMENT OF C01 SIDER.!;.TIONS RE Q UE ST BY INVENTOR FOR THE WAIVER OF DOMESTIC AN  

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

C01 SIDER.!;.TIONS C01 SIDER.!;.TIONS RE Q UE ST BY INVENTOR FOR THE WAIVER OF DOMESTIC AN D FOREIGN RTGHTS TO AN IDE. TIFIED [NVEN'fl0'\1 ENTiTLED "RESONANT-CAVITY APPA.RATUS FOR CYTOM.GTRY OR PARTICLE ANA L'YS iS'' US P 5,793,485, DEVELOPI·:D UNDER DOE CONTRACT NO. DE-AC04-94AL85000; DOE r:\"VENTfON DISCLOSU RE NO. S-85,819 (SD-5797 ); DOE WAIV ER NO. V.l ( ) 201 l-oo_,; rv3 The Petitioner, Paul L. Gourley (Inventor), has requested a \\'aive of the Government's domestic and fo eign patent rights in a subject invention entitled "Resonant-Cavi ty Apparatus for Cytome ry or Particle Analy·sis." The invention v,·as conceived by the inventor while an employee of the Sandia Corporation (Sandia). ,'andia is the M&O contractor for the Sandia a ional Laboratories (S L), a government-0\vned, contracto

276

Newsletter (July 2010) SHR.pub  

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

Project Staff- Project Staff- ing & DOE G 413.3-19 2 Question of the Month 2 FPD Corner 3 FY10 Course Schedule 4- 5 FY11 Course Schedule 6 P R O J E C T M A N A G E M E N T C A R E E R D E V E L O P M E N T P R O G R A M Pathways to Project Success J U L Y 2 0 1 0 Corrective Action Plan (CAP) Corner: DOE Project Risk Management New Initiatives By Ruben A. Sanchez, P.E., PMP, LEED AP OECM The DOE Root Cause Analy- sis (RCA), Contract and Pro- ject Management, report dated April 2008, had identi- fied deficiencies in contract and project management performance as they relate to risk management. Two corrective actions were un- dertaken to remedy the noted deficiencies: Updat- ing the DOE G 413.3-7, Risk Management Guide, dated October 2008, and aligning

277

Strain-tuning of periodic optical devices : tunable gratings and photonic crystals  

E-Print Network (OSTI)

The advancement of micro- and nano-scale optical devices has heralded micromirrors, semiconductor micro- and nano-lasers, and photonic crystals, among many. Broadly defined with the field of microphotonics and microelect ...

Wong, Chee Wei, 1975-

2003-01-01T23:59:59.000Z

278

Asymmetry Peculiarities of Surface-Mediated Liquid Crystals Gratings Recorded Due  

E-Print Network (OSTI)

Institute of Physics, National Academy of Sciences of Ukraine, Kiev, Ukraine 2 Laboratoire des Colloi, National Academy of Sciences of Ukraine, Pr. Nauki 46, Kyiv 03039, Ukraine. Tel.: √ĺ(38044)5250779; Fax

Reznikov, Yuri

279

Nonblocking WDM Switches Based on Arrayed Waveguide Grating and Limited Wavelength  

E-Print Network (OSTI)

, SUNY at Buffalo, Amherst, NY 14260, USA. qiao@cse.buffalo.edu Abstract--- Constructing wavelength of what wavelength it will be on. In this paper, we give novel constructions of strictly non­ blocking packet/burst switching. As far as we know, these are the first of such constructions. I. INTRODUCTION

Ngo, Hung Q.

280

Nonblocking WDM Switches Based on Arrayed Waveguide Grating and Limited Wavelength  

E-Print Network (OSTI)

, SUNY at Buffalo, Amherst, NY 14260, USA. qiao@cse.buffalo.edu Abstract-- Constructing wavelength of what wavelength it will be on. In this paper, we give novel constructions of strictly non- blocking packet/burst switching. As far as we know, these are the first of such constructions. I. INTRODUCTION

Ngo, Hung Q.

Note: This page contains sample records for the topic "grated analy sis" 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

The Last Voyage of John Cabot and the Rock at Grates Cove  

Science Journals Connector (OSTI)

... IN 1497 John Cabot sailed from Bristol and discovered about three hundred leagues of the coastal regions and ... He was awarded an annual pension of £20 by Henry VII.

ARTHUR DAVIES

1955-11-26T23:59:59.000Z

282

Acknowledgements We are grateful to E. DeGiorgi, H. Matano, L ...  

E-Print Network (OSTI)

son, S. Chanillo, B. Coleman, L.C. Evans, J. M. Ghidaglia, R. Hardt, B. Hel?'er,. M. Hervť ..... D. Saint-James, G. Sarma and E. J. Thomas [1], D. Tilley and J. Tilley.

283

Sensors and Actuators B 107 (2005) 121125 Two photon fluorescence sensors based on resonant grating  

E-Print Network (OSTI)

Sensors and Actuators B 107 (2005) 121­125 Two photon fluorescence sensors based on resonant the excitation and emission radia- tion reduces the background noise, the static photobleaching.07.040 #12;122 T. Katchalski et al. / Sensors and Actuators B 107 (2005) 121­125 lar, they are compact

Friesem, Asher A.

284

Bragg grating-based fibre optic sensors in structural health monitoring  

Science Journals Connector (OSTI)

...fans on, full speed gas-turbine engine (ca 50 knots). The...engines at low speeds and a gas turbine engine at high speeds. As mentioned...used to make predictions about remaining useful structure life (in this case axial load on...

2007-01-01T23:59:59.000Z

285

NEW ATRACTUSFROM BRAZILNEW ATRACTUSFROM BRAZIL imens under their care. I am grateful to Jona-  

E-Print Network (OSTI)

):7-14. HOOGMOED,M. S. 1980. Revision of the genus Atrac- tusin Surinam,with the ressurectionof two spe- cies (Colubridae,Reptilia).Notes on the herpe- tofaunaof SurinamVII.Zool. Verhand.175:1-47. McCoY,C.J. 1971 of the genus Atrac- tusin Surinam,with the ressurectionof two spe- cies (Colubridae

Hedges, Blair

286

Local luminance nonlinearity and receptor aliasing in the detection of high-frequency gratings  

Science Journals Connector (OSTI)

Contrast sensitivity for orientation discrimination is limited to spatial frequencies below 50Ė60 cycles per degree by neural spatial integration, and we find that contrast...

He, Sheng; MacLeod, Donald I A

1996-01-01T23:59:59.000Z

287

TPA-induced long-period gratings in a photonic crystal fiber: inscription and temperature  

E-Print Network (OSTI)

­3] or an electric arc discharge [4­9]) or by applying mechanical pressure [10,11]. One of the serious disadvantages

Nikogosyan, David N.

288

Polarisation properties of long-period grating inscribed in pure-fused-silica  

E-Print Network (OSTI)

arc discharge) or by applying mechanical pressure, and it allows the production of high quality LPFGs-photochemical ones, which deal with refractive index change induced by heating (using CO2 laser light or an electric

Nikogosyan, David N.

289

UNIVERSITY OF CALIFORNIA The Publishers and the Author will be grateful to  

E-Print Network (OSTI)

OF A HISTORY OF THE STEAM-EN- GINE, A MANUAL OF THE STEAM-ENGINE, A MANUAL OF STEAM-BOILERS, ETC., ETC., ETC & SO^S. 43 & 45 EAST NINETEENTH STREET. #12;#12;STEAM-BOILER EXPLOSIONS IN THEORY AND IN PRACTICE. BY R'lNSTRUCTION PUBLIQUE DE FRANCE; PAST PRESIDENT AM. SOC. MECH. ENG*RS J FORMERLY OF U. S. N. ENGINEERS ; AUTHOR

Laughlin, Robert B.

290

Development of Fiber Bragg Grating Strain, Thermal, and Magnetic Sensors for Smart Structure Applications  

E-Print Network (OSTI)

the FBGs along Fiber-2 when moved from air to either IPA orB when the FBG is immersed in IPA from air and evolution ofetched FBG when immersed in IPA and then ferrofluid with a

Emmons, Michael

2012-01-01T23:59:59.000Z

291

Development of Fiber Bragg Grating Strain, Thermal, and Magnetic Sensors for Smart Structure Applications  

E-Print Network (OSTI)

temperature and vibration measurement using a multiplexedTemperature and vibration measurements were taken afteranalysis on vibration modal frequency measurement at a low

Emmons, Michael

2012-01-01T23:59:59.000Z

292

Application of fiber Bragg grating based strain sensor in pipeline vortex-induced vibration measurement  

Science Journals Connector (OSTI)

The vortex-induced vibrations (VIV) is an important topic of ... of different methods have been applied to the measurement of VIV, especially for the elongated, ... in stainless steel tubes were applied to the measurement

Liang Ren; ZiGuang Jia; Michael Siu Chun HoÖ

2014-09-01T23:59:59.000Z

293

Incorporation of nanovoids into metallic gratings for broadband plasmonic organic solar cells  

Science Journals Connector (OSTI)

We present investigation and optimization of a newly proposed plasmonic organic solar cell geometry based on the incorporation of nanovoids into conventional rectangular backplane...

Lee, Sangjun; In, SungJun; Mason, Daniel R; Park, Namkyoo

2013-01-01T23:59:59.000Z

294

Control of light transmission in laser-written phase-shifted Bragg grating couplers  

E-Print Network (OSTI)

, 2011; posted March 17, 2011 (Doc. ID 140861); published April 11, 2011 We demonstrate the fabrication

295

Direct Bragg grating writing in a hybrid PDMS/Silica photonic crystal fiber G. Kakarantzas1  

E-Print Network (OSTI)

FBG was written in the PDMS filled section of the PCF by using a doubled CW argon laser (=257 nm, P. Eggleton, P. S. Westbrook, C. A. White, C. Kerbage, R. S. Windeler, and G. L. Burdge, "Cladding

Vlachos, Kyriakos G.

296

Laser-induced grating measurements of energy migration in Tm,Ho:YAG  

Science Journals Connector (OSTI)

We report what is to our knowledge the first direct measurement of spatial energy migration among the Tm3+ ions in a Tm,Ho:YAG crystal at room temperature. Four-wave mixing...

French, Valentina A; Powell, Richard C

1991-01-01T23:59:59.000Z

297

Aminopropyltriethoxysilane (APTES)-functionalized nanoporous polymeric gratings: fabrication and application in biosensing  

E-Print Network (OSTI)

the molecular-recognition events into electrochemical,6 optical,7 acoustic,8 or calorimetric9 signals. Porous that provide a high signal-to-noise ratio. The direct addition of APTES into the photopolymer syrup effectively

298

Bragg grating-based fibre optic sensors in structural health monitoring  

Science Journals Connector (OSTI)

...which are powered by diesel engines at low speeds and a gas...possible detection of subtle engine characteristics: there...under three conditions: engines off, cruise in normal...state-space methods in general have been used in a number...

2007-01-01T23:59:59.000Z

299

Fundamental limit of light trapping in grating Zongfu Yu, Aaswath Raman and Shanhui Fan+  

E-Print Network (OSTI)

­305 (1982). 5. M. A. Green, "Lambertian light trapping in textured solar cells and light-emitting diodes. I. Tobías, A. Luque, and A. Marti, "Light intensity enhancement by diffracting structures in solar of nanophotonic light trapping for solar cells," arXiv:1004.2902v2 [physics.optics] (2010). http

Fan, Shanhui

300

Absorption Enhancement in Ultrathin Crystalline Silicon Solar Cells with Antireflection and Light-Trapping Nanocone Gratings  

E-Print Network (OSTI)

Absorption Enhancement in Ultrathin Crystalline Silicon Solar Cells with Antireflection and Light ABSTRACT: Enhancing the light absorption in ultrathin-film silicon solar cells is important for improving in the back reflector. KEYWORDS: Solar cells, light trapping, antireflection, crystalline silicon, absorption

Fan, Shanhui

Note: This page contains sample records for the topic "grated analy sis" 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

Clinical boundary conditions for grating-based differential phase-contrast mammography  

Science Journals Connector (OSTI)

...owing to the collimation. A more detailed...disadvantages of the two system geometries is...two-dimensional systems. However,-the collimation of the radiation...all the other systems. This reflects...flux owing to collimation. When the use...

2014-01-01T23:59:59.000Z

302

Adaptive modelling of multi-phase flow Support of the German Research Foundation is gratefully acknowledged.  

E-Print Network (OSTI)

-method) Aavatsmark et. al (2008) Transport step Adaptation of sub-domains Next time-step Simple model (1p2c) Complex model (2p2c) Future Work Simulation of the Tensleep formation on an adaptive grid. Further application: 1p2c with linear T 2p2c with linear T Full 2p2cNI Only small parts of the domain are subject

Cirpka, Olaf Arie

303

STRUCTURAL HEALTH MONITORING OF SUPERCONDUCTING MAGNETS AT CERN USING FIBER BRAGG GRATING SENSORS  

E-Print Network (OSTI)

, at the European Organization for Nuclear Research (CERN), a multidisciplinary research program is currently of Engineering, University of Sannio, Corso Garibaldi, 82100 Benevento 2 European Organization for Nuclear

Boyer, Edmond

304

April 1, 2002 / Vol. 27, No. 7 / OPTICS LETTERS 479 Experimental investigation of intracavity Bragg gratings  

E-Print Network (OSTI)

. The intracavity holographic device was composed of an or- ganic dye, MOED,6,7 dissolved in ethanol n 1 was spatially modulated, inducing a periodic change in the refractive index (dn dT 23.6 3 1024 K21 in ethanol

Boyer, Edmond

305

To grate a liquid into tiny droplets by its impact on a hydrophobic micro-grid  

E-Print Network (OSTI)

We report on experiments of drop impacting a hydrophobic micro-grid, of typical spacing a few tens of $\\mu$m. Above a threshold in impact speed, liquid emerges to the other side, forming micro-droplets of size about that of the grid holes. We propose a method to produce either a mono-disperse spray or a single tiny droplet of volume as small as a few picoliters corresponding to a volume division of the liquid drop by a factor of up to 10$^5$. We also discuss the discrepancy of the measured thresholds with that predicted by a balance between inertia and capillarity.

Brunet, P; Zoueshtiagh, F; Thomy, V; Merlen, A

2009-01-01T23:59:59.000Z

306

Design of optimum slotted-grating systems for end filling navigation locks  

Science Journals Connector (OSTI)

1. The graphical and analytical relationships obtained and the methods for determining the optimum dimensions of...

P. R. Khlopenkov

1968-09-01T23:59:59.000Z

307

Nonlinear generalized source method for modeling second-harmonic generation in diffraction gratings  

E-Print Network (OSTI)

We introduce a versatile numerical method for modeling light diffraction in periodically patterned photonic structures containing quadratically nonlinear non-centrosymmetric optical materials. Our approach extends the generalized source method to nonlinear optical interactions by incorporating the contribution of nonlinear polarization sources to the diffracted field in the algorithm. We derive the mathematical formalism underlying the numerical method and introduce the Fourier-factorization suitable for nonlinear calculations. The numerical efficiency and runtime characteristics of the method are investigated in a set of benchmark calculations: the results corresponding to the fundamental frequency are compared to those obtained from a reference method and the beneficial effects of the modified Fourier-factorization rule on the accuracy of the nonlinear computations is demonstrated. In order to illustrate the capabilities of our method, we employ it to demonstrate strong enhancement of second-harmonic genera...

Weismann, Martin; Panoiu, Nicolae C

2015-01-01T23:59:59.000Z

308

High-Speed X-ray Phase Imaging with Grating Interferometer and White Synchrotron Light  

SciTech Connect

Taking advantage of the fact that an X-ray Talbot interferometer functions with X-rays of a broad energy band width, high-speed X-ray phase imaging and tomography have been achieved by using white synchrotron light. An X-ray phase tomogram could be measured with a 0.25 s exposure. Furthermore, a series of X-ray phase tomograms, in other words, a four-dimensional X-ray phase tomogram, could be reconstructed with a tomogram frame rate of 25.5 fps. This achievement advances X-ray phase imaging/tomography from a technique for static imaging to one for dynamic imaging of weakly absorbing objects.

Momose, Atsushi; Yashiro, Wataru; Huang, Shaohua; Kuwabara, Hiroaki; Kawabata, Katsuyuki [Graduate School of Frontier Sciences, University of Tokyo, 5-1-5 Kashiwanoka, Kashiwa, Chiba 277-8561 (Japan)

2010-06-23T23:59:59.000Z

309

Binding of ETS family members is important for the function of the c-sis/platelet-derived growth factor-B TATA neighboring sequence in 12-O-tetradecanoylphorbol-13-acetate-treated K562 cells  

Science Journals Connector (OSTI)

...Spontaneous Mammary Carcinomas of BALB/c Mice and in the Responsiveness of the...Immunization of young adult BALB/c mice, mammary tumor virus (MTV...234-238, 1962. 22. Martinez, C., Shapiro, F., and Good, R. A. Induction...

GC Kujoth; DF Robinson; and WE Fahl

1998-07-01T23:59:59.000Z

310

Uncertainty of forest carbon stock changes Ė implications to the total uncertainty of GHG inventory of Finland  

Science Journals Connector (OSTI)

Uncertainty analysis facilitates identification of the most important categories affecting greenhouse gas (GHG) inventory uncertainty and helps in prioritisation of ... . This paper presents an uncertainty analys...

S. Monni; M. Peltoniemi; T. Palosuo; A. Lehtonen; R. MškipššÖ

2007-04-01T23:59:59.000Z

311

The Troubling Aspects of a Building Block Hypothesis for Genetic  

E-Print Network (OSTI)

as an explanation of the search power of GAs [46, 32]. Holland's analy­ ses have been the foundation for more

Fernandez, Thomas

312

NATIONAL LEAD COMPANY OF OHIO  

Office of Legacy Management (LM)

.' HEALTH AND SAFETY DIVJSION - ANALYTICAL DEPT. I ' .' . ANALY' TICAL DATA SHEET NUI ' I NO. DISTRIBUTION OF COPIES 1 Analytical Laboratory (RBCCRD COPPI 2 Industrial Hygiene 8...

313

Advanced Optical Technologies  

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

and gold-overcoated master diffraction gratings for pulse compression (up to 1 meter in diameter); ion-beam-etched transmission gratings; wet-etched gratings;...

314

STUDENT INFORMATION SYSTEMS: 2008-2009 MANUAL  

E-Print Network (OSTI)

STUDENT INFORMATION SYSTEMS: 2008-2009 MANUAL Student Academic Affairs Office College of Education #12;ii #12;SIS Manual: 2008-2009 iii TABLE OF CONTENTS ABOUT STUDENT INFORMATION SYSTEMS (SIS.............................................................................................1 STUDENTS

Gilbert, Matthew

315

The Astrophysical Journal, 521:L79--L82, 1999 August 20 # 1999. The American Astronomical Society. All rights reserved. Printed in U.S.A.  

E-Print Network (OSTI)

refrigerator cools the HEMT amplifiers to 35 K and the SIS receivers to 4 K. The telescope optics are similar

316

Sequential Infiltration Synthesis Advances Lithography (IN-10...  

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

Applications and Industries SIS application areas include microelectronics, optoelectronics, plasmonics, nanofluidics, high-density storage media, advanced sensors and...

317

Robotic Construction by Contour Crafting Behrokh Khoshnevis, Professor, University of Southern California  

E-Print Network (OSTI)

the development of three novel Additive Manufacturing (3D Printing) processes called Contour Crafting, SIS and MPM

Liu, X. Shirley

318

Modelling multi-state diffusion process in complex networks: theory and applications  

Science Journals Connector (OSTI)

......a generalized SIS model by allowing the existence...the generalized SIS model on large graphs...to or prevents the outbreak of information or...the generalized SIS model. Experimental results...methodology can accurately predict the behaviour of...contagions such as flu or ideas in a large......

Yishi Lin; John C. S. Lui; Kyomin Jung; Sungsu Lim

2014-08-01T23:59:59.000Z

319

Metabolites of the Tobacco-specific Nitrosamine 4-(Methylnitrosamino)-1-(3-pyridyl)-1-butanone in Smokers' Urine  

Science Journals Connector (OSTI)

...combined gas ehromatography-thermal energy analy/er; GC-MS-SIM...interfaced with a Model 610 Thermal Energy Analy/er (Thennedics...liquid chromatography with a thermal energy analyzer. J. Chromatogr...saliva of oral snuff users in Sudan. Carcinogenesis (Lond.K...

Steven G. Carmella; Shobha Akerkar; and Stephen S. Hecht

1993-02-15T23:59:59.000Z

320

nemsoverview_928.vp  

Gasoline and Diesel Fuel Update (EIA)

9) 9) The Na tional En ergy Mod el ing Sys tem: An Over view 2009 October 2009 En ergy In for ma tion Ad min is tra tion Of fice of In te grated Anal y sis and Fore cast ing U.S. De part ment of En ergy Wash ing ton, DC 20585 This re port was pre pared by the En ergy In for ma tion Ad min is tra tion, the in de pend ent sta tis ti cal and an a lyt i cal agency within the U.S. De part ment of En ergy. The in for ma tion con tained herein should be at trib uted to the En ergy In for ma tion Ad min is tra tion and should not be con strued as ad vo cat ing or re flect ing any pol icy po si tion of the De part ment of En ergy or any other or ga ni za tion. This pub li ca tion is on the WEB at: www.eia.doe.gov/oiaf/aeo/over view/ The Na tional En ergy Mod el ing Sys tem: An Over view 2009 pro vides a sum mary de scrip tion of the Na tional En ergy

Note: This page contains sample records for the topic "grated analy sis" 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

Determination of Thermal Diffusivities, Thermal Conductivities, and Sound Speeds of Room-Temperature Ionic Liquids by the Transient Grating Technique  

E-Print Network (OSTI)

properties, which make them suitable not only as green solvents but also as high-performance fluids for use as a "green" recyclable alternative to the volatile organic compounds that are traditionally used as industrial solvents. In the laboratory, RTILs have successfully been used in a broad spectrum of applications

Reid, Scott A.

322

A Coal Mine Security Monitoring System Based on Multiplexed Fibre Bragg Grating Sensors and Coherence-Multiplexing Technique  

Science Journals Connector (OSTI)

Abstract: An FBG sensing system for coal mine security monitoring is proposed in this paper. It works over a Spatial-division-multiplexing/coherence-multiplexing network to realize...

Xia, Tianhao; Zhou, Bin; Liu, Weisheng; Guan, Zuguang

323

Viscosity Dependence of the Rotational Reorientation of Rhodamine B in Mono-and Polyalcohols. Picosecond Transient Grating Experiments  

E-Print Network (OSTI)

Viscosity Dependence of the Rotational Reorientation of Rhodamine B in Mono- and Polyalcohols-Stokes-Einstein (DSE) theorywas shown to extend to much higher viscosities than previously reported. Detailed of radius R and hydrodynamic volume V rotating in a fluid continuum of macroscopic viscosity q and relates

Fayer, Michael D.

324

Correlation of ultraviolet-induced stress changes and negative index growth in type IIa germanosilicate waveguide gratings  

Science Journals Connector (OSTI)

The stress anisotropy in planar germanosilicate waveguides is used to follow the changes in stress, measured as a birefringence, with UV irradiation. Compressive stress increases...

Canning, J; Ňslund, M

1999-01-01T23:59:59.000Z

325

Photonic crystal fiber interferometer composed of a long period fiber grating and one point collapsing of air holes  

Science Journals Connector (OSTI)

We present an all-fiber interferometer fabricated with a single piece of an endless single-mode photonic crystal fiber (PCF) by an electric arc discharge. By forming a long period...

Choi, Hae Young; Park, Kwan Seob; Lee, Byeong Ha

2008-01-01T23:59:59.000Z

326

Interaction of leech neurons with topographical gratings: comparison with rodent and human neuronal lines and primary cells  

Science Journals Connector (OSTI)

...Tukey's multiple comparison test or Kruskal-Wallis test (for non-parametric data...versus T2; one-way ANOVA, Kruskal-Wallis test; figure 3 c). In order...T2 and T4; one-way ANOVA, Kruskal-Wallis test; figure 4 e), suggesting...

2014-01-01T23:59:59.000Z

327

Enhancement of optical absorption in thin-film organic solar cells through the excitation of plasmonic modes in metallic gratings  

E-Print Network (OSTI)

Enhancement of optical absorption in thin-film organic solar cells through the excitation 2010 We theoretically investigate the enhancement of optical absorption in thin-film organic solar.1063/1.3377791 Thin-film organic solar cells OSCs are a promising candidate for low-cost energy conversion.1­6 However

Veronis, Georgios

328

InP-and Graphene-based grating-gated transistors for tunable THz and mm-wave detection  

E-Print Network (OSTI)

layer. Silvaco Atlas 2-D device simulator (FEM analysis software) was used to determine the free carrier

Peale, Robert E.

329

Long-period fiber grating inscription under high-intensity 352 nm femtosecond irradiation: Three-photon absorption  

E-Print Network (OSTI)

-photon absorption and energy deposition in cladding Stephen A. Slattery, David N. Nikogosyan * Department of Physics-intensity 211 and 264 nm laser pulses. Three-photon absorption coefficients for pure fused silica in the fiber cladding and the core. It was shown that the deposition of the majority of the absorbed energy

Nikogosyan, David N.

330

High-resolution tomographic imaging of a human cerebellum: comparison of absorption and grating-based phase contrast  

Science Journals Connector (OSTI)

...Technische Universitat Munchen, , Garching, Germany 4 Institute for Materials Research, , GKSS Research Centre, , Geesthacht, Germany 5 Laboratory for Micro- and Nanotechnology, Paul Scherrer Institut, , Villigen, Switzerland 6 Institute of Microstructure...

2010-01-01T23:59:59.000Z

331

Use of Fiber Bragg Grating Strain Gages on a Pipeline Specimen Repaired with a CFRE Composite System  

Science Journals Connector (OSTI)

Re-establishing the maximum operating pressure of a segment of pipeline with metal loss defects, such as erosion ... segment altogether, or by applying a localized repair system. The present paper deals with labo...

J. L. F. Freire; V. A. PerrutÖ

2013-01-01T23:59:59.000Z

332

December 1, 2000 / Vol. 25, No. 23 / OPTICS LETTERS 1693 High-frequency Bragg gratings in a photothermorefractive glass  

E-Print Network (OSTI)

in a photothermorefractive glass O. M. Efimov, L. B. Glebov, and V. I. Smirnov School of Optics/Center for Research-2700 Received July 21, 2000 Holographic UV mirrors were recorded in a volume of photothermorefractive glass. This photosensitive sili- cate glass doped with silver, cerium, and fluorine is transparent in the near-UV, visible

Glebov, Leon

333

Design of all-optical high-order temporal integrators based on multiple-phase-shifted Bragg gratings  

Science Journals Connector (OSTI)

In exact analogy with their electronic counterparts, photonic temporal integrators are fundamental building blocks for constructing all-optical circuits for ultrafast information...

Asghari, Mohammad H; AzaŮa, Josť

2008-01-01T23:59:59.000Z

334

Changes in Moisture, Protein, and Fat Content of Fish and Rice Flour Coextrudates during Single-Screw Extrusion Cooking  

SciTech Connect

Changes in proximate composition of fish and rice flour coextrudates like moisture, protein, and fat content were studied with respect to extrusion process v ariables like barrel temperature, x1 (100Ė200 degrees C); screw speed, x2 (70Ė110 rpm); fish content of the feed, x3 (5Ė45 percent); and feed moisture content, x4 (20Ė60 percent). Experiments were conducted at five levels of the process variables based on rotatable experimental design. Response surface models (RSM) were developed that adequately described the changes in moisture, protein, and fat content of the extrudates based on the coeff icient of determination (R2) values of 0.95, 0.99, and 0.94. ANOVA analysis indicated that extrudate moisture content was influenced by x4, protein content by x1 and x3, and fat content by x3 and x4 at P < 0.001. Trends based on response surf ace plots indicated that the x1 of about 200 degrees C, x2 of about 90 rpm, x3 of about 25%, and x4 of about 20% minimized the moisture in the extrudates. Protein content was maximized at x1 of 100 degrees C, x2 > 80 rpm, x3 of about 45 percent, and x4 > 50 percent, and fat content was minimized at x1 of about 200 degrees C, x2 of about 85Ė95 rpm, x3 < 15 percent, and x4 of about >50 percent. Optimized process variables based on a genetic algorithm (GA) for minimum moisture and fat content and maximum protein content were x1 = 199.86, x2 = 109.86, x3 = 32.45, x4 = 20.03; x1 = 199.71, x2 = 90.09, x3 = 15.27, x4 = 58.47; and x1 = 102.97, x2 = 107.67, x3 = 44.56, x4 = 59.54. The predicted values were 17.52 percent, 0.57 percent, and 46.65 percent. Based on the RSM and GA analy sis, extrudate moisture and protein content was influenced by x1, x3, and x4 and fat content by x2, x3, and x4.

Jaya Shankar Tumuluru; Shahab Sokhansanj; Sukumar Bandyopadhyay; A. S. Bawa

2013-02-01T23:59:59.000Z

335

Fundamentals of Medical Image Processing  

Science Journals Connector (OSTI)

After some remarks to the background and terminology used, Sect. 62.3 deals with low-level image processing as far as necessary to understand the following chapters. Subsequently, the core steps of image analy...

Thomas M. Deserno

2011-01-01T23:59:59.000Z

336

Preview of the 121st Meeting, AAAS, Berkeley, California, 26-31 December 1954  

Science Journals Connector (OSTI)

...Automatic Orsat Gas Analy-zer. They...Automatic Orsat Gas Analyzer demonstration...recircu-lation of gases through Orsat absorbers. New equipment will be solicited...both imported and domestic. Information witlh...Water Associated Oil Company (Booth...

1954-12-03T23:59:59.000Z

337

Gas-Phase OH Oxidation of Monoterpenes: Gaseous and Particulate Products  

Science Journals Connector (OSTI)

Smog chamber experiments have beenconducted in which cyclic monoterpenes were oxidisedin the gas phase by OH. The evolved secondary organicaerosol (SOA) was analysed by LC-MSn and thegas-phase products were analy...

Bo. R. Larsen; Dario Di Bella; Marianne GlasiusÖ

2001-03-01T23:59:59.000Z

338

Effect of nanoclay on some applied properties of oriented strand board (OSB) made from underutilized low quality paulownia (Paulownia fortunei) wood  

Science Journals Connector (OSTI)

In this study, the effect of nanoclay on some applied properties of oriented strand ... of European Norm. With increasing 5†% nanoclay to UF resin, mechanical and physical properties ... electron microscope analy...

Ayoub Salari; Taghi Tabarsa; Abolghasem KhazaeianÖ

2012-12-01T23:59:59.000Z

339

E-Print Network 3.0 - acid dopac binds Sample Search Results  

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

Summary: ). In some cases, DA and the primary DAcatabolite, 3,4-dihydroxyphenylace- tic acid (DOPAC), were purified... system for analy- ses of DA, DOPAC, 5-HT, and the...

340

P H Y S I K A L I S C H E S K O L L O Q U I U M E I N LA D U N G  

E-Print Network (OSTI)

of optoelectronic devices. Consequently, this method has been used for various analy- ses of the spatial emission information about the waveguide properties in op- erating optoelectronic devices. The conceptual idea

Oldenburg, Carl von Ossietzky Universität

Note: This page contains sample records for the topic "grated analy sis" 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

Electrofacies in gas shale from well log data via cluster analysis: A case study of the Perth Basin, Western Australia  

Science Journals Connector (OSTI)

Identifying reservoir electrofacies has an important role in determining hydrocarbon bearing intervals. In this study, electrofacies of the Kockatea Formation in the Perth Basin were determined via cluster analys...

Amir Karimian Torghabeh; Reza RezaeeÖ

2014-09-01T23:59:59.000Z

342

Towards an Acceptable Criterion of Acceptable Risk  

Science Journals Connector (OSTI)

The determination by federal risk managers of an acceptable level of carcinogenic risk depends upon many factors. Several of the ... The size of the population that is at risk influences our perception and analys...

Paul Milvy

1987-01-01T23:59:59.000Z

343

Rapid determination of 5-hydroxymethylfurfural by DART ionization with time-of-flight mass spectrometry  

Science Journals Connector (OSTI)

DART (direct analysis in real time), a novel technique with wide potential for rapid screening analysis, coupled with high-resolution time-of-flight mass spectrometry (TOF-MS) has been used for quantitative analy...

Aleö Rajchl; Ladislava DrgovŠ; Adťla GrťgrovŠÖ

2013-05-01T23:59:59.000Z

344

Joint Facilities User Forum on Data-Intensive Computing  

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

Analy8cs S ite Analysis w orkflow Remote d ata m ovement b y A DIOS Workflow b uilt f rom p lugins Local d ata m ovement b y A DIOS Cloud s torage Sensor or Instrument Computer...

345

GIS and Remote Sensing Applications in Modern Water Resources Engineering  

Science Journals Connector (OSTI)

An example of 2-D hydraulic modeling was demonstrated for the South Boulder Creek floodplain study. The MIKE FLOODģ model used in the study combines the traditional channelized one-dimensional (or 1-D) flow analy...

Lynn E. Johnson Ph.D.; P.E.

2014-01-01T23:59:59.000Z

346

Network Operation and Maintenance System of Meticulous Management Based on Data Analysis  

Science Journals Connector (OSTI)

Due to rapid development of the domestic communication industry, energy consumption on network operation and maintenance has become one of the ... s crucial for us to develop an intelligent system for data analys...

Qi-Te Wang; Ke-Bin Jia; Ye Yuan; Yu-Xin Song

2014-01-01T23:59:59.000Z

347

ORISE: Partnership with NLM to Develop E-learning Courses | How...  

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

(SIS) Division of the National Library of Medicine sought support from ORAU (through its management of the ORISE contract) to make the seamless transition from traditional,...

348

Download Full-text PDF  

Science Journals Connector (OSTI)

M. HALE cannot be resolved in view of the primi-. Department of Mechanical Engineering, tive state of ... sis of the methyl esters by gas-liquid chro- matography†...

2000-02-13T23:59:59.000Z

349

AN ELECTRONIC COMPENDIUM OF EXTREME FUNCTIONS FOR ...  

E-Print Network (OSTI)

Nov 18, 2014 ... The proof of extremality follows the basic roadmap mentioned in [4, sub- section 2.3]. ..... sis, Georgia Institute of Technology, June 2011.

2014-11-18T23:59:59.000Z

350

E-Print Network 3.0 - autana estado amazonas Sample Search Results  

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

del Estado Amazonas. Master's the- sis. Universidad Simon Bolivar, Caracas, Venezuela... or combined to water collected from one clear-water (Cataniapo) and one...

351

Download  

Science Journals Connector (OSTI)

with potassium peroxysulfate and heating at 125C for 30 min (standard method SIS ... spectrophotometry after sequential combustion of the sam- ples at 475Ė

2003-08-25T23:59:59.000Z

352

22  

Science Journals Connector (OSTI)

Apr 5, 1976 ... sis, Rijksuniv.,, Groningen. HORVATII,. R. S. 1972. Microbial co-metabo- lism and the degradation of organic com- pounds in nature. Bacterial.

2000-01-05T23:59:59.000Z

353

Block-oriented nonlinear system identification using semidenite programming  

E-Print Network (OSTI)

Industrial and Engineering Chemistry Research, 39:4302Ė4314,Industrial and engineering chemistry research, 44:1823Ė1831,sis. Industrial and engineering chemistry research, 44:6719Ė

Han, Younghee

2012-01-01T23:59:59.000Z

354

E-Print Network 3.0 - aim program compilation Sample Search Results  

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

with the nal... program instrumentation. SIS is able to instrument, via commandline ... Source: Massari, Luisa - Dipartimento di Informatica e Sistemistica, Universita' di...

355

Pathogen-Triggered Ethylene Signaling Mediates Systemic-Induced Susceptibility to Herbivory in ArabidopsisW  

E-Print Network (OSTI)

Pathogen-Triggered Ethylene Signaling Mediates Systemic-Induced Susceptibility to Herbivory-triggered ethylene signaling, respectively. SIS to herbivory is, in turn, counteracted by a combination

Pierce, Naomi E.

356

Nitrogen fixation in Lake Mendota, Madison, Wisconsin  

Science Journals Connector (OSTI)

Maximum depth is 23 nl; average ..... work of Home and Fogg ( 1970) and Hornc .... sis provides energy for N2-reducing activity, .... lizc (luxury consumption).

2000-01-04T23:59:59.000Z

357

H  

Science Journals Connector (OSTI)

does show a significant enhancement in comparison with the ... pound deleted does enhance photosynthe- sis but also show, ...... Fundamentals of limnology,.

2000-02-11T23:59:59.000Z

358

E-Print Network 3.0 - affects arbovirus infection Sample Search...  

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

were... -borne zoono- sis; it affects ruminants and is characterized by high rates of abortion and death in young... , RVFV reached the Arabian Peninsula (1). Animals are...

359

Commercial Feeding Stuffs, from September 1, 1949 to August 31, 1950.  

E-Print Network (OSTI)

of manufacturer or importer, brand name tein , extract A. A. A. Alfalfa Milling Company Roswell, New Mexico, and Branches ....... 17% Protcin Dehydrated Alfalfa Meal. Analys~s ". ............................. cme Flour Mills Co., The Oklahoma City... of manufacturer or importer, brand name tein , extract A. A. A. Alfalfa Milling Company Roswell, New Mexico, and Branches ....... 17% Protcin Dehydrated Alfalfa Meal. Analys~s ". ............................. cme Flour Mills Co., The Oklahoma City...

Holleman, M. P.; Brock, F. D.

1950-01-01T23:59:59.000Z

360

Low-Divergence Surface-Emitting Terahertz Quantum Cascade Lasers  

Science Journals Connector (OSTI)

We investigate surface-emission via a second-order grating in terahertz quantum cascade lasers. We optimize grating design and suppress facet reflectivity with absorbing waveguide...

Fan, Jonathan; Belkin, Mikhail; Capasso, Federico; Khanna, Suraj; Lachab, Mohammed; Davies, Giles; Linfield, Edmund

Note: This page contains sample records for the topic "grated analy sis" 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

High-resolution grazing-incidence grating spectrometer for temperature measurements of low-Z ions emitting in the 100Ė300 Ň spectral band  

SciTech Connect

We have constructed a high-resolution grazing-incidence spectrometer designed for measuring the ion temperature of low-Z elements, such as Li{sup +} or Li{sup 2+}, which radiate near 199 Ň and 135 Ň, respectively. Based on measurements at the Livermore Electron Beam Ion Trap we have shown that the instrumental resolution is better than 48 mŇ at the 200 Ň setting and better than 40 mŇ for the 135-Ň range. Such a high spectral resolution corresponds to an instrumental limit for line-width based temperature measurements of about 45 eV for the 199 Ň Li{sup +} and 65 eV for the 135 Ň Li{sup 2+} lines. Recently obtained survey spectra from the Lithium Tokamak Experiment at the Princeton Plasma Physics Laboratory show the presence of these lithium emission lines and the expected core ion temperature of approximately 70 eV is sufficiently high to demonstrate the feasibility of utilizing our high-resolution spectrometer as an ion-temperature diagnostic.

Widmann, K., E-mail: widmann1@llnl.gov; Beiersdorfer, P.; Magee, E. W. [Lawrence Livermore National Laboratory, Livermore, California 94550 (United States); Boyle, D. P.; Kaita, R.; Majeski, R. [Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543 (United States)

2014-11-15T23:59:59.000Z

362

Gasification of Mixed Plastic Wastes in a Moving-Grate Gasifier and Application of the Producer Gas to a Power Generation Engine  

Science Journals Connector (OSTI)

Due to the flame-assisted tar reforming with oxy-combustion of natural gas, the hydrogen content was significantly increased, resulting in an increase in the syngas caloric value and a decrease in the gas cleaning load downstream. ... An auxiliary burner was installed in front of each stage for preheating the inside of the gasifier. ... Such waste products include discarded tires, plastic, glass, steel, burnt foundry sand, and coal combustion byproducts (CCBs). ...

Jeung Woo Lee; Tae U Yu; Jae Wook Lee; Ji Hong Moon; Hyo Jae Jeong; Sang Shin Park; Won Yang; Uen Do Lee

2013-03-15T23:59:59.000Z

363

Proximity field nanopatterning (PnP) employs a 2D grating to create a 3D optical interferogram within an underlying photore-  

E-Print Network (OSTI)

bandgaps, metamaterials, optical cloaking, highly efficient solar cells, and unique sensors. Significant of optical absorption processes in solar cells, and sensors.[1] Since the pioneering work of Yablonovitch[3 cloaking, solar energy harvesting, and sensing. Central image design by Huigang Zhang. #12;Multidimensional

Rogers, John A.

364

Energy-transfer measurement and determination of the phase shift between the holographic grating and the fringe pattern in photorefractive materials  

Science Journals Connector (OSTI)

We describe a novel accurate method to measure energy transfer between two beams coupling in photorefractive materials. We have used this method to measure the on-line energy-transfer...

Kapoor, Rakesh; Moghbel, Mehdi; Venkateswarlu, Putcha

1993-01-01T23:59:59.000Z

365

Phase Transition of Multi-state Diffusion Process in Networks  

E-Print Network (OSTI)

the spread of contagions like flu (without immunity) or idea. In practice, the SIS model can be quite, and to maximize the influence of a product in online social networks. One of the most studied contagion models so far is the Susceptible-Infected-Susceptible (SIS) model. In this model, there are k = 2 states

Lui, John C.S.

366

Consideration of common cause failures in safety systems  

Science Journals Connector (OSTI)

Systems in which failure could endanger human life are termed safety-critical. The SIS (Safety Instrumented System) should be designed to meet the required safety integrity level as defined in the safety requirement specification. Moreover, the SIS design ... Keywords: IEC 61508, beta-factor-model, common cause failure, multi parameter model, probability of failure on demand

J. BŲrcsŲk; P. Holub

2008-04-01T23:59:59.000Z

367

Secure Safety: Secure Remote Access to Critical Safety Systems in Offshore Installations  

Science Journals Connector (OSTI)

Safety Instrumented Systems (SIS) as defined in IEC 61508 and IEC 61511 are very important for the safety of offshore oil & natural gas installations. SIS typically include the Emergency Shutdown System (ESD) that ensures that process systems return ... Keywords: Offshore, Process Control, Safety Instrumented Systems, Secure remote access

Martin Gilje Jaatun; Tor Olav GrÝtan; Maria B. Line

2008-06-01T23:59:59.000Z

368

Understanding FERPA A brief tutorial  

E-Print Network (OSTI)

icon wherever you see it in SIS: When you click the icon, you'll be able to see what information the FERPA icon when you see it in SIS: Student records are private, and may only be disclosed to school

369

Chemical State and Local Structure around Titanium Atoms in NaAlH4 Doped with TiCl3 Using X-ray Absorption Spectroscopy  

Science Journals Connector (OSTI)

Financial support by the ďForschungsallianz Brennstoffzelle Baden-WŁrttembergĒ is gratefully acknowledged. ...

Aline Lťon; Oliver Kircher; JŲrg Rothe; Maximilian Fichtner

2004-09-29T23:59:59.000Z

370

Influence of Kaolin and Calcite Additives on Ash Transformations in Small-Scale Combustion of Oat  

Science Journals Connector (OSTI)

The financial support from the Swedish Farmers Foundation for Agricultural Research (SLF) is gratefully acknowledged. ...

Dan BostrŲm; Alejandro Grimm; Christoffer Boman; Emilia BjŲrnbom; Marcus ÷hman

2009-09-16T23:59:59.000Z

371

Subsidizing Solar: The Case for an Environmental Goods and Services Carve-out from the Global Subsidies Regime  

E-Print Network (OSTI)

solar collectors and system controllers, wind- turbine parts and components, stoves, grates and cookers,

Simmons, Zachary Scott

2014-01-01T23:59:59.000Z

372

A straight-line strain method of analyzing reveted and bolted connections loaded with torsion into the plastic region  

E-Print Network (OSTI)

- sis, which assumes a straight-line stress distribution ~ 0 0-+ C+- 6? Fig ~ 33 ~ R i vet pattern for problems 1 z 2, 3. Problem 1 Four AD 4 rivets in ~ 032 in ~ 2024-T3 Alclad sheets as shown in Fig- (33) Anal sis assumin a strai ht-line strain...)(270)( ~ 2)) = 6/8 in. -lbs. 42 Anal sis assumin a strai ht-line stress distribution P r, max i Eq ~ (2) reduces to Pi 1' or uni f orm r i vet or bo1 t max diameter, and constant sheet thickness. Then (374)(. 25) 2 3 = 124 1bs. 75 Test Tm = (2...

Welch, Billy Jack

2012-06-07T23:59:59.000Z

373

The development of a passive dosimeter for chlorine gas  

E-Print Network (OSTI)

in the preparation of this thesis. I would also like *o tnank Dr. J. Frank Slowey for the sugges- tions and assistance he has given me concerning quantitative analy- tical procedures. DEDICATION To Kathleen Fenner Noncier, my wife. TABLE OF' CONTENTS ABSTRACT... in the preparation of this thesis. I would also like *o tnank Dr. J. Frank Slowey for the sugges- tions and assistance he has given me concerning quantitative analy- tical procedures. DEDICATION To Kathleen Fenner Noncier, my wife. TABLE OF' CONTENTS ABSTRACT...

Montier, Earl Woodson

2012-06-07T23:59:59.000Z

374

CUTTING EDGE Cutting Edge: Essential Role of Hypoxia Inducible  

E-Print Network (OSTI)

mediated by macrophages, because the transfer of LPS-sensitive macro- phages renders previously LPS-resistant the potential relevance of HIF-1 as a target for sep- sis therapy. Materials and Methods Mouse models Transgenic thermal infrared camera (F

Nizet, Victor

375

Gordon Research Conferences  

Science Journals Connector (OSTI)

...pyroly-sis." Characterization of coals and shales (A. G. Douglass, discussion lead-er...Vanderborgh, "Pyrolysis of coals and shales"; S. Larter, "Applica-tions of...level"; R. R. Matheson, Jr., "Anisotropic solutions and melts of semirigid polymer...

Alexander M. Cruickshank

1981-03-13T23:59:59.000Z

376

ENZYMES AND MICROORGANISMS IN FOOD INDUSTRY WASTE PROCESSING AND CONVERSION TO USEFUL PRODUCTS: A REVIEW OF THE LITERATURE  

E-Print Network (OSTI)

Presented at the Symposium on Enzymes in the Food Processingowned rights. Title: Enzymes and Mi Conversi on isms i A I sis not harves Potential for enzyme Given conversion can usea

Carroad, P.A.

2010-01-01T23:59:59.000Z

377

Structural Comparison of Deoxycytidine Kinases Purified from Cells Sensitive (P815) or Resistant (P815/ara-C) to 1-?-d-Arabinofuranosylcytosine  

Science Journals Connector (OSTI)

...of the kinases. Electrophoresis of purified enzymes...dialyzed against water, and following...for 30 min before dialysis against water and treatment with CNBr. AAFC...with water-cooled electrophore- sis was done at...

Marian B. Meyers and Willi Kreis

1978-04-01T23:59:59.000Z

378

E-Print Network 3.0 - authority information system Sample Search...  

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

the SIS. Procedure Use the Disable... . On the Student Information System Sign In page, enter your Case Network ID into the User ID field. 2. Enter... . The Student Center appears....

379

J. Phycol. 39, 411 (2003) THE SYMBIOTIC BIRTH AND SPREAD OF PLASTIDS: HOW MANY TIMES AND WHODUNIT?  

E-Print Network (OSTI)

primary, cyanobacterial endosymbio- sis. Although the analyses in this issue by Stiller and colleagues is the subject of a paper in this issue by Stiller et al. (2003), who challenge the widespread view that primary

Palmer, Jeffrey

380

Insecticidal crystal proteins of Bacillus thuringiensis.  

Science Journals Connector (OSTI)

...for use as biological insecticides in agriculture and forestry. B. thIiirin,u,,iensis...alternative to chemical insecticides in agriculture. ACKNOWLEDGNIENTS We thiank D. Burges...Bacillus thuriagieasis subsp. isra(lca.sis. J. Bacteriol. 170:4732-4738...

H HŲfte; H R Whiteley

1989-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "grated analy sis" 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

Depth-resolved cathodoluminescence spectroscopy of silicon supersaturated with sulfur  

E-Print Network (OSTI)

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

Fabbri, Filippo

382

Exogenous nitric oxide decreases brain vascular inflammation, leakage and venular resistance during Plasmodium berghei ANKA infection in mice  

E-Print Network (OSTI)

the pathophysiology of sickle cell disease vaso-occlusion.hemolytic syndromes such as sickle cell cri- sis, in whichpathol- ogies such as sickle cell crisis, in which cell-free

Zanini, Graziela M; Cabrales, Pedro; Barkho, Wisam; Frangos, John A; Carvalho, Leonardo JM

2011-01-01T23:59:59.000Z

383

A LINEARIZATION METHOD FOR A UWB VCO-BASED CHIRP GENERATOR USING DUAL COMPENSATION  

E-Print Network (OSTI)

Ultra-Wideband (UWB) chirp generators are used on Frequency Modulated Continuous Wave (FMCW) radar systems for high-resolution and high-accuracy range measurements. At the Center for Remote Sensing of Ice Sheets (CReSIS), ...

Gomez-Garcia Alvestegui, Daniel

2011-12-31T23:59:59.000Z

384

397.ps - Optimization Online  

E-Print Network (OSTI)

it y pro b lems arise f rom contact mec h anics, structural mec h anics, nonlinear o b stacle, ... f rom nonsmoot h anal y sis are collected in t h e Appendi x . A v er y†...

385

E-Print Network 3.0 - austenitnoj cr-mn stali Sample Search Results  

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

39 76.34-76.54 10:717 s 0:002 Catinaster coalitus FO 40 75.29-75.44 10:738 s 0... ) was applied for eval- uating abundances of Helicosphaera walbersdorfen- sis and Helicosphaera...

386

Acetone-butanol fermentation revisited.  

Science Journals Connector (OSTI)

...sis process. An economic analysis of the cost of...10, 69). The economic feasibility of...152). Their analysis indicated that...break-even point. The analysis of using waste-based...critical factor for economic viabil- ity of...

D T Jones; D R Woods

1986-12-01T23:59:59.000Z

387

Dropouts of the outer electron radiation belt in response to solar wind stream interfaces: global positioning system observations  

Science Journals Connector (OSTI)

...radiation belt in response to solar wind stream interfaces: global...Calgary, Calgary, Alberta, Canada We present a statistical study...examined statistically for 67 solar wind stream interfaces (SIs...global positioning system|solar wind| 1. Introduction (a...

2010-01-01T23:59:59.000Z

388

FAIR Forefront Physics and Challenges: Extreme Field Physics with Lasers and  

E-Print Network (OSTI)

of secondary beams · SC magnets fast ramping · Parallel operation SIS 100/300 HESR Super FRS NESR CBM HADES Module 0 SIS100 Module 1 expt areas CBM/HADES and APPA Module 2 Super-FRS fixed target area NuSTAR Module "New Perspectives of High Energy Physics"B. Sharkov 11 PANDA CBM/HADES NuSTAR Outstanding research

389

Consequences of the Kramers-Kronig  

Science Journals Connector (OSTI)

Diffraction of monochromatic light on a grating leads to the attenuation of the transmitted beam of diffraction order zero. In the case of a thick grating the diffraction efficiency,...

Hšckel, Michael; Kador, Lothar; Frenz, Carsten; Schmidt, Hans-Werner

2004-01-01T23:59:59.000Z

390

The impact of astronomy  

Science Journals Connector (OSTI)

......Einstein's work. Spectroscopy and nuclear fusion were also largely stimulated by astronomical...grating. Their products are used in laser fusion, for example, and there...this 91 - 42 cm grating made for laser pulse compression at Osaka University......

Andy Fabian

2010-06-01T23:59:59.000Z

391

High and Low Temperature Series Estimates for the Critical Temperature of the 3D Ising Model  

E-Print Network (OSTI)

of the 3D Ising Model Zaher Salman and Joan Adler Department-dimensional Ising model on the simple cubic lattice. Our analys* *is of Butera and Comi's new 32 term temperature of the three-dimensional (3d) Ising model on the si* *mple cubic lattice has been exhaustively

Adler, Joan

392

Chemical Methods for Removing Radon and Radon Daughters from Air  

Science Journals Connector (OSTI)

...been used previously as air in uranium mines with fiber filters...Radiation Standards for Uranium Mining," i KolthoffrPtJionAnaly...metal atoms is synthesized depleted by reaction with water vapor...12). Since the air in a uranium *The lattice constants for...

Lawrence Stein

1972-03-31T23:59:59.000Z

393

Comparison of Simple Power Analysis Attack Resistant Algorithms for an Elliptic Curve  

E-Print Network (OSTI)

Engineering, University College Cork Email: {andrewb,liam,francisc}@rennes.ucc.ie LIRMM, CNRS - Univ, University College Cork Email: {e.popovici}@ucc.ie Abstract-- Side channel attacks such as Simple Power Analy. The protected double and add algorithm provides a simple solution to this problem but is costly in terms

Paris-Sud XI, Université de

394

Complicated systems Prof. B.A.T. Petersson  

E-Print Network (OSTI)

Analysis · Uncertainty assessment · Complete variance © Prof. B.A.T. Petersson #12;Institute of Technical Akustik Statistical Energy Analysis SEA Numer i ca l me thods FE &BE- te chniques FD- techniques Power ba lance Exper imental me thods "power f low" Inver se me thod Analy t i ca l methods Wave theory Modal

Berlin,Technische Universität

395

Upper bounds and asymptotics in a quantitative version of the Oppenheim conjecture.  

E-Print Network (OSTI)

Upper bounds and asymptotics in a quantitative version of the Oppenheim variables. Let LQ = Q(* *Zn) denote the set of values of Q at integral points. The Oppenheim conjecture, the Oppenheim conjecture enjoyed attention and many studies, mostly using analy* *tic number theory methods

Eskin, Alex

396

Reply to comments by L.J. Cabri on "Changes in sulfides and platinum-group minerals with the degree of alteration  

E-Print Network (OSTI)

is not applicable for our purpose. In our studies, the mass balance calculation is secondary to the petrogenetic) and Ni deposits, we carried out our mass balance calculations using whole-rock analy- ses combined-012-0423-6 #12;use the whole-rock analyses for mass balance calculations because sulfide minerals make up a small

Long, Bernard

397

Ris6-M-17G7 r-* Danish Atomic Energy Commission  

E-Print Network (OSTI)

Ris6-M-17G7 r-* Danish Atomic Energy Commission ? Research Establishment Riso ··o if ELECTRONICS of the Danish Atomic Energy Commission (Atomenergikommissionens Bibliotek), Rise, DK-4000 Roskilde, Denmark.".aly:;is failure r.ode and effects analysis, and fault tree analy.si:., are two established techniques for studyinp

398

Measurement of vehicle emissions and the associated dispersion near roadways  

E-Print Network (OSTI)

halance I, echnique sufl'ers I&vo disadva&i&, ages: (1) the emission factor may &&nly l&e calcula4cd for exis&, ing roads and (2) I, he analys4 &nusI, have accuraLe air quality, I, raflic, and inel, eorological da4a to estimal, e the emission rate...

Hlavinka, M. W

1986-01-01T23:59:59.000Z

399

Explanatory Optimization of Protein Mass Spectrometry via Genetic Search  

E-Print Network (OSTI)

of the mass spectrometer settings that accounts for much of this success. Specifically, the conditions of Wales, Aberystwyth, Ceredigion SY23 3DD, U.K. Optimizing experimental conditions for the effective analy that little or no a priori knowledge of the optimal conditions is available. There is much current interest

Fernandez, Thomas

400

Monte Carlo techniques applied to PERT networks  

E-Print Network (OSTI)

results, and (3) what bias exists in the system. The basic tool used to investigate these questions was the simula- tion of actual conditions on +he IBM 709 compu"er. In some instances, the simulation method was combined with mathematical analys's. A...

McGowan, Lawrence Lee

2012-06-07T23:59:59.000Z

Note: This page contains sample records for the topic "grated analy sis" 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

Gochimie des olivines plantaires : une approche micro-analytique par EPMA et LA-ICPMS  

E-Print Network (OSTI)

. Méthode : Une série d'olivines d'origines terrestre et extra-terrestre seront analysés : (1) Olivine (achondrites basaltiques, basaltes terrestres). Donc les olivines sont les témoins des processus de formation, Brachinites, HED, SNC) (5) Olivine terrestre (Manteau, Cumulat, Komatiites, MORB, OIB) (6) Olivine produit

Demouchy, Sylvie

402

Author's personal copy Molecular and functional characterization of a juvenile hormone acid  

E-Print Network (OSTI)

Inorga¬īnica, Anali¬ītica y Qui¬īmica Fi¬īsica/INQUIMAE-CONICET, Facultad de Ciencias Exactas y Naturales, University of Florida, Gainesville, FL, USA e Departamento de Qui¬īmica Biolo¬īgica y Departamento de Qui¬īmica

Noriega, Fernando Gabriel

403

Centre Europen de Recherche et d'Enseignement des  

E-Print Network (OSTI)

informations diffusées par l'Isotope Geology Laboratory de Boise (Idaho, USA) et par le Lamont-Doherty Earth informations sur des éléments couramment analysés avec la technique TIMS : strontium, néodyme, plomb, uranium

Paris-Sud XI, Université de

404

REMEMBERING KI HANG KIM This volume is dedicated in memory to Ki Hang Kim, who died in 2009 after  

E-Print Network (OSTI)

, a passport was secured. In December 1953, Kim sailed under the Golden Gate Bridge. Kim was always grateful

Boyle, Mike

405

Structure-Dependent Photophysics of First-Generation Phenyl-Cored Thiophene Dendrimers  

Science Journals Connector (OSTI)

Support of this work by the NREL LDRD program and the Xcel Energy Renewable Development Fund is gratefully acknowledged. ...

William J. Mitchell; Andrew J. Ferguson; Muhammet E. KŲse; Benjamin L. Rupert; David S. Ginley; Garry Rumbles; Sean E. Shaheen; Nikos Kopidakis

2008-12-24T23:59:59.000Z

406

Optics and Diagnostics  

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

10 14 | Next | Last Back to Index Optics Diffraction Gratings for APPOLON laser. Photo Number: 2011-020040...

407

Hydrogen Safety Issues Compared to Safety Issues with Methane and Propane  

E-Print Network (OSTI)

DOE funding for the US Neutrino Factory and Muon Collider Collaboration is also gratefully acknowledged. REFERENCES Handbook

Green, Michael A.

2005-01-01T23:59:59.000Z

408

December 1985 / Vol. 10, No. 12 / OPTICS LETTERS 609 Picosecond pulse shaping by spectral phase and amplitude  

E-Print Network (OSTI)

The temporal profile of ultrashort optical pulses may be tailored by physically manipulating the phase, with a repetition rate of 100 MHz, are coupled into a 400-m length of single- mode, polarization-preserving optical.9 psec by using a double-pass grating pair.3'4 After a single pass, through the grating pair (grating

Purdue University

409

2007 Nature Publishing Group Self-formation of sub-60-nm half-pitch  

E-Print Network (OSTI)

studies of thin polymer films and termed fracture induced structuring (FIS), self-generates gratings. Specifically, FIS consists of three steps (Fig. 1)12,13. First, a coating of a polymer thin film (for example and cross- sections of FIS gratings. The half-pitch of the FIS grating was found to be as small as 60 nm

410

Diffraction encoded position measuring apparatus  

DOE Patents (OSTI)

When a lightwave passes through a transmission grating, diffracted beams appear at the output or opposite side of the grating that are effectively Doppler shifted in frequency (phase) whereby a detector system can compare the phase of the zero order and higher order beams to obtain an indication of position. Multiple passes through the grating increase resolution for a given wavelength of a laser signal. The resolution can be improved further by using a smaller wavelength laser to generate the grating itself. Since the grating must only have a pitch sufficient to produce diffracted orders, inexpensive, ultraviolet wavelength lasers can be utilized and still obtain high resolution detection.

Tansey, Richard J. (Thousand Oaks, CA)

1991-01-01T23:59:59.000Z

411

Diffraction encoded position measuring apparatus  

DOE Patents (OSTI)

When a lightwave passes through a transmission grating, diffracted beams appear at the output or opposite side of the grating that are effectively Doppler shifted in frequency (phase) whereby a detector system can compare the phase of the zero order and higher order beams to obtain an indication of position. Multiple passes through the grating increase resolution for a given wavelength of a laser signal. The resolution can be improved further by using a smaller wavelength laser to generate the grating itself. Since the grating must only have a pitch sufficient to produce diffracted orders, inexpensive, ultraviolet wavelength lasers can be utilized and still obtain high resolution detection. 3 figures.

Tansey, R.J.

1991-09-24T23:59:59.000Z

412

High-throughput Accurate-wavelength Lens-based Visible Spectrometera  

SciTech Connect

A scanning visible spectrometer has been prototyped to complement fixed-wavelength transmission grating spectrometers for charge exchange recombination spectroscopy. Fast f/1.8 200 mm commercial lenses are used with a large 2160 mm-1 grating for high throughput. A stepping-motor controlled sine drive positions the grating, which is mounted on a precision rotary table. A high-resolution optical encoder on the grating stage allows the grating angle to be measured with an absolute accuracy of 0.075 arcsec, corresponding to a wavelength error ? 0.005 Ň. At this precision, changes in grating groove density due to thermal expansion and variations in the refractive index of air are important. An automated calibration procedure determines all relevant spectrometer parameters to high accuracy. Changes in bulk grating temperature, atmospheric temperature and pressure are monitored between the time of calibration and the time of measurement to insure a persistent wavelength calibration

Ronald E. Belll and Filippo Scotti

2010-06-04T23:59:59.000Z

413

u.s. DEPARTMENT OF ENERGY EERE PROJECT MANAGEMENT CENTER NEPA DETERMINATION  

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

. . ,.,,,,. u.s. DEPARTMENT OF ENERGY EERE PROJECT MANAGEMENT CENTER NEPA DETERMINATION RECIPIENT:Colorado School of Mines Page lof3 STATE: CO PROJECf TITLE: Time-lapse JOint Inversion of GEOphysical Dala and its Application to Geothermal Prospecting GEODE Funding Opportunity Announcement Number Procurement Instrument Number NEPA Control Number CID Number DOE DE-FOA-0000522 DE-EE0005513 GFO-OOO5513-001 0 Based on my review o(the information concerning the proposed action, as NEPA Compliance Officer (authorizt'd under DOE Order 451.1A),1 han made the (ollowing determination: ex, EA, EIS APPENDIX AND NUMBER: Description: A9 Infoonatlon gathering, analysIs, and dissemination InformatIOn gathenng (including, but not limited to, literature surveys, Inventories, Site viSits, and audits). data analysIs

414

INCITE and ESP Driven Advances in GAMESS 2013 Early Science Program Invesitgators Meeting  

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

INCITE and ESP Driven Advances in GAMESS INCITE and ESP Driven Advances in GAMESS 2013 Early Science Program Invesitgators Meeting May 15-16th 2013 Old$Analy)c$Gradient$ New$Fully$Analy)c$Gradient$ Fragmentation Methods * Quantum Mechanics/Molecular Mechanics (QM/MM) methods have become popular in recent years, however, * As system size grows the QM region can get unwieldy * The energy contribution from the environment becomes too large to obtain reasonable accuracy from molecular mechanics * Biomolecules contain hundreds or thousands of atoms, making accurate quantum calculations either very difficult or impossible Fragmentation methods offer a unique solution to accurate calculations on large molecules The Fragment Molecular Orbital Method * Exchange is not long-range in most molecules * Long-range interactions can be treated using just

415

2012 Annual Workforce Analysis and Staffing Plan Report - Carlsbad  

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

United States Government Department of Energy memorandum Carlsbad Field Office Carlsbad , New Mexico 88221 DATE: REPLY TO ATINOF: SUBJECT: JAN 1 8 2013 CBFO:OESH:GTB:ANC:13-0701 :UFC 3410.00 CBFO Annual Workforce Analys is and Staffing Plan rn: Kare n L. Boardman, Chairperson, Federal Techn ical Capability Panel (HS-70) The Carlsbad Field Office (CBFO) has updated the CBFO Annual Workforce Ana lysis and Staffing Plan as of December 31, 2012. The attachment to this Memorandum provides the updated CBFO Workforce Analysis and Staffing information on th e Federal Technica l Capability Program Workforce Staffing and Analys is Report template. If you have questions, please contact Mr. George T. Basabilvazo, CBFO Federal Technical Capability Panel Agent, at (575) 234-7488.

416

OpenPolarServer: An open source, field deployable, spatial data infrastructure  

E-Print Network (OSTI)

for every point. ē PITR (Point In Time Recovery) archiving. DISTRIBUTION ē JavaScript Web GIS ē Downloading is easy! ē Set Filters ē Draw Boundary ē Click Download Thanks to the CReSIS group! ē John Paden Advisor ē Trey Stafford GIS UGRA ē Sam Buchanan... EECS UGRA ē Haiji Wang EECS UGRA Thanks to my Committee! ē Xingong Li Advisor ē Terry Slocum Member ē David Bratten Member We acknowledge the use of data and/or data products from CReSIS generated with support from NSF grant ANT-0424589 and NASA...

Purdon, Kyle

2014-04-08T23:59:59.000Z

417

OpenPolarServer (OPS) - An Open Source Spatial Data Infrastructure for the Cryosphere Community  

E-Print Network (OSTI)

offers a raw data product from which usable information must be extracted. For CReSIS the ice surface layer and ice bottom layer are the target information for extraction. The extraction process is carried out using the Data Picker, a custom MATLAB... for CReSIS L1B and L2 datasets is the MATLAB binary file format (.mat) commonly referred to as a MAT file [14]. The MAT file format is a 8 proprietary binary file format used by the high-level scripting language and interactive environment...

Purdon, Kyle Wayne

2014-05-31T23:59:59.000Z

418

A transient study on the dynamic coupling of a fluid-tank system  

E-Print Network (OSTI)

A TRANSIENT STUDY ON THE DYNAMIC COUPLING OF A FLUID-TANK SYSTEM A Thesis by PUI CHUN LUI Approved as to style and content by: ( airman of Ccrmittee) (Head of Department) (Member) (Member) August 1980 ABSTBACT A Transient Study... liquid-tank system are of great concern. This dl annie coupling problem is studied analy- tically for a t?o-dimensional, rectangular, rigid tank with no baffles. The governing equations of the liquid motion are derived with reference to a moving...

Lui, Pui Chun

1980-01-01T23:59:59.000Z

419

Territoire, bien-tre et inclusion sociale, Confrences cadres LE SYSTEME REGIONAL D'INNOVATION  

E-Print Network (OSTI)

Territoire, bien-être et inclusion sociale, Conférences cadres 26 LE SYSTEME REGIONAL D'INNOVATION la période fordiste, l'innovation y est analysée comme le résultat d'un produit social et)" #12;Territoire, bien-être et inclusion sociale, Conférences cadres 27 Le système régional d'innovation

Boyer, Edmond

420

Prececal, postileal and total tract starch digestion in ponies fed corn, oats, barley or sorghum grain  

E-Print Network (OSTI)

Barley Oats Corn Sorghum Sorghum Barley Oats Corn Whole grains were purchased from a local commercial supplier. All grains were elevator run. Prior to ration formulation grains were coarsely cracked in an automatic roller mill..., chromium and starch by the same procedures except 5 ml of wet sample was used for each analy- For determination of amylase content and viscosity, grains were pulverized in a laboratory Udy mill through a 1 mm screen. An alkaline hydroylsate was prepared...

Arnold, Fairfax Ferguson

2012-06-07T23:59:59.000Z

Note: This page contains sample records for the topic "grated analy sis" 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

Design and realization of a GaAs FET integrated with a heterojunction photodiode  

E-Print Network (OSTI)

1595 Design and realization of a GaAs FET integrated with a heterojunction photodiode F. Therez, M, accepté le 6 juillet 1987) Résumé. 2014 L'association d'une photodiode à hétérojonction et d'un circuit circuits intégrant l'amplificateur et la photodiode. Les divers dispositifs sont caractérisés et analysés

Paris-Sud XI, Université de

422

Agns LENEPVEU-HOTZ doctorante l'Ecole Pratique des Hautes Etudes  

E-Print Network (OSTI)

morph√®mes ham, - et bi- √† l'aune d'un texte persan du XIe si√®cle de notre √®re, le Trx-i Sstn RESUME Les morph√®mes grammaticaux ham, - et bi- du persan archa√Įque sont traditionnellement analys√©s comme suit. ham rh√©maticit√©, et non d'une action semelfactive et ponctuelle. Mots cl√©s : persan archa√Įque ; ham ; - ; bi

Paris-Sud XI, Université de

423

Science du sol volution court terme de formes du phosphore  

E-Print Network (OSTI)

Science du sol √?volution √† court terme de formes du phosphore d'un sol ferrallitique apr√®s apports du phosphore du sol analys√©es sont les suivantes : phosphore total (Pt), organique (Po), mi- n√©ral mottes de boue sont encore pr√©sentes apr√®s 500 j. La teneur en phosphore total du sol a tripl√© (1 400 &mu

Boyer, Edmond

424

Publicerad i Dagens Nyheter, Svenska Dagbladet och Vestmanlands Lans Tidning 2011-10 Mikael Passare  

E-Print Network (OSTI)

, och var drivande inf¨or skapandet av det Pan-afrikanska centret f¨or matematik i Dar es-Salaam of Dar es-Salaam. Vid sin d¨od var han ordf¨orande i Svenska matematikersamfundet och dessutom medlem i komplex analys i flera variabler, d¨ar hans avhandling var ett viktigt genombrott med nya resultat om

Kiselman, Christer

425

ccsd00000553 L'ARGUMENT EINSTEIN PODOLSKY ROSEN (EPR)  

E-Print Network (OSTI)

ccsd­00000553 (version 1) : 29 Aug 2003 L'ARGUMENT EINSTEIN PODOLSKY ROSEN (EPR) : PARADOXE'article EPR (A. Einstein, B. Podolsky, N. Rosen, #19;ecrit en 1935), qui est #18;a l'origine de l'aujourd'hui, est analys#19;e. Avec Schrodinger, Bohr, Wigner et jusqu'#18;a aujourd'hui, la r#19;eponse #18;a EPR

426

Characterisation of the Native Lipid Moiety of Echinococcus granulosus Antigen B  

E-Print Network (OSTI)

/Facultad de Qui¬īmica, Universidad de la Repu¬īblica (UdelaR), Montevideo, Uruguay, 2 Unidad de Biofi¬īsica de¬īmica Anali¬īticas, Instituto Pasteur de Montevideo, Montevideo, Uruguay, 4 Laboratorio de Carbohidratos y Glicoconjugados, Departamento de Qui¬īmica Orga¬īnica/Departamento de Desarrollo Biotecnolo¬īgico, Facultad de Qui

Boyer, Edmond

427

Phase plate technology for laser marking of magnetic discs  

DOE Patents (OSTI)

An advanced design for a phase plate enables the distribution of spots in arbitrarily shaped patterns with very high uniformity and with a continuously or near-continuously varying phase pattern. A continuous phase pattern eliminates large phase jumps typically expected in a grating that provides arbitrary shapes. Large phase jumps increase scattered light outside of the desired pattern, reduce efficiency and can make the grating difficult to manufacture. When manufacturing capabilities preclude producing a fully continuous grating, the present design can be easily adapted to minimize manufacturing errors and maintain high efficiencies. This continuous grating is significantly more efficient than previously described Dammann gratings, offers much more flexibility in generating spot patterns and is easier to manufacture and replicate than a multi-level phase grating. 3 figs.

Neuman, B.; Honig, J.; Hackel, L.; Dane, C.B.; Dixit, S.

1998-10-27T23:59:59.000Z

428

Phase plate technology for laser marking of magnetic discs  

DOE Patents (OSTI)

An advanced design for a phase plate enables the distribution of spots in arbitrarily shaped patterns with very high uniformity and with a continuously or near-continuously varying phase pattern. A continuous phase pattern eliminates large phase jumps typically expected in a grating that provides arbitrary shapes. Large phase jumps increase scattered light outside of the desired pattern, reduce efficiency and can make the grating difficult to manufacture. When manufacturing capabilities preclude producing a fully continuous grating, the present design can be easily adapted to minimize manufacturing errors and maintain high efficiencies. This continuous grating is significantly more efficient than previously described Dammann gratings, offers much more flexibility in generating spot patterns and is easier to manufacture and replicate than a multi-level phase grating.

Neuman, Bill (Livermore, CA); Honig, John (Livermore, CA); Hackel, Lloyd (Livermore, CA); Dane, C. Brent (Livermore, CA); Dixit, Shamasundar (Livermore, CA)

1998-01-01T23:59:59.000Z

429

A Schematic Method for Sustainable Material Selection of Toxic Chemicals in Design and Manufacturing  

E-Print Network (OSTI)

in the material selection process for sustainable design andfrom the perspectives of sustainable process design andinte- grated sustainable material selection process of toxic

Yuan, Chris Yingchun; David Dornfeld

2010-01-01T23:59:59.000Z

430

E-Print Network 3.0 - antares recoil time-of-flight Sample Search...  

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

imaging... by the matter wave grating by coherently transferring an atom from the condensate into the recoil mode, which Source: Harvard University, Center for Ultracold Atoms,...

431

Mechanism of Type IIA Photosensitivity in Optical Fibers  

Science Journals Connector (OSTI)

Formation of the type IIA Bragg gratings in germanosilicate optical fibers is studied. A mechanism for the type IIA photosensitivity is proposed which is based on nucleation and...

Shlyagin, Mikhail; Kukushkin, Sergei

432

Non-monotonous refractive index changes recorded in a phosphate glass optical fibre using 248nm, 500fs laser radiation  

Science Journals Connector (OSTI)

Results are presented on the photosensitivity behavior of a phosphate glass optical fibre using 248nm, 500fs laser radiation. Bragg grating exposures performed using a double phase...

Sozzi, Michele; Rahman, Aashia; Pissadakis, Stavros

2011-01-01T23:59:59.000Z

433

High Capacity Hydrogen Adsorption in Cu(II) Tetracarboxylate Framework Materials: The Role of Pore Size, Ligand Functionalization, and Exposed Metal Sites  

Science Journals Connector (OSTI)

We are grateful to STFC Daresbury Laboratory for the award of beam time on SRS Stations 9.8 and 16.2SMX and to Drs. ...

Xiang Lin; Irvin Telepeni; Alexander J. Blake; Anne Dailly; Craig M. Brown; Jason M. Simmons; Marco Zoppi; Gavin S. Walker; K. Mark Thomas; Timothy J. Mays; Peter Hubberstey; Neil R. Champness; Martin SchrŲder

2009-01-21T23:59:59.000Z

434

In-situ measurement with fiber Bragg sensors in lithium batteries for safety usage  

Science Journals Connector (OSTI)

Fiber Bragg grating sensors are integrated in lithium batteries to measure temperature variations during batteries operated under normal and abnormal conditions. The thermal...

Yang, Gang; Leit„o, Catia; Li, Yuhong; Pinto, Jo„o; Jiang, Xuefan

435

Download Full-text PDF  

Science Journals Connector (OSTI)

... been results pub- lished in the western literature (Savvaitova and Petr 1992; ..... We are very grateful to Todd Hinkley, USGS, Denver, Colorado, for suggesting†...

2001-04-26T23:59:59.000Z

436

Contacts For "G" | EMSL  

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

(509) 371-6500 Dr. Grate has a distinguished career in chemical microsensors and microfluidics integrating aspects of chemical, material and measurement sciences into new...

437

E-Print Network 3.0 - affecting facility development Sample Search...  

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

R. - Department of Physics and Astronomy, University of Delaware Collection: Physics 7 Panel Feedback and Impact on the PALS Programmatic Recommendations We are grateful to the...

438

Proposal and experimental verification of Bragg wavelength distribution measurement within a long-length FBG by synthesis of optical coherence function  

Science Journals Connector (OSTI)

In this paper, a sensor system for measuring continuous Bragg wavelength distribution in a long-length fiber Bragg grating is newly proposed, using synthesis of optical coherence...

Hotate, Kazuo; Kajiwara, Koji

2008-01-01T23:59:59.000Z

439

E-Print Network 3.0 - ameca river basin Sample Search Results  

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

River is an inte- grated biophysical system, but the basin is ... Source: Northwest Power Planning Council Collection: Power Transmission, Distribution and Plants 13 Future of...

440

E-Print Network 3.0 - aci american concrete Sample Search Results  

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

Fellow Tarun R. Naik... are gratefully acknowledged. REFERENCES 1. Okamura, H., Self-Compacting High Performance Concrete, ACI Concrete... : Expanding the Possibility of Concrete...

Note: This page contains sample records for the topic "grated analy sis" 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

Fast methods for inverse wave scattering problems  

E-Print Network (OSTI)

Inverse wave scattering problems arise in many applications including computerized/diffraction tomography, seismology, diffraction/holographic grating design, object identification from radar singals, and semiconductor ...

Lee, Jung Hoon, Ph. D. Massachusetts Institute of Technology

2008-01-01T23:59:59.000Z

442

BONNEVILLE POWER ADMINISTRATION FOR IMMEDIATE RELEASE  

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

and grateful. BPA's setting a high bar in terms of gold certification," says Michael Armstrong, the bureau's research and innovation manager. BPA earned gold certification by...

443

Poly(3-hexyl-2,5-thienylene vinylene) by ADMET Polymerization of a Dipropenyl Monomer  

Science Journals Connector (OSTI)

The Initiative for Renewable Energy and the Environment (IREE) at the University of Minnesota and the Xcel Energy Renewable Development Fund are gratefully acknowledged for financial support. ...

Yang Qin; Marc A. Hillmyer

2009-07-09T23:59:59.000Z

444

Distannylated Isothianaphthene: A Versatile Building Block for Low Bandgap Conjugated Polymers  

Science Journals Connector (OSTI)

The Initiative for Renewable Energy and the Environment (IREE) at the University of Minnesota and the Xcel Energy Renewable Development Fund are gratefully acknowledged for financial support. ...

Yang Qin; Jung Yong Kim; C. Daniel Frisbie; Marc A. Hillmyer

2008-07-02T23:59:59.000Z

445

Technological assessment of light-trapping technology for thin-film Si solar cell.  

E-Print Network (OSTI)

??The proposed light trapping technology of Distributed Bragg Reflector (DBR) with Diffraction Grating (DG) and Anti-Reflection Coating (ARC) for thin film Si solar cell wasÖ (more)

Susantyoko, Rahmat Agung

2009-01-01T23:59:59.000Z

446

Quantum Chemistry Based Force Field for Simulations of HMX  

Science Journals Connector (OSTI)

Grant D. Smith * and Rishikesh K. Bharadwaj ... An allocation of computer time from the Center for High Performance Computing at the University of Utah is gratefully acknowledged. ...

Grant D. Smith; Rishikesh K. Bharadwaj

1999-04-21T23:59:59.000Z

447

A Metal-Ion Coordinated Hybrid Multilayer  

Science Journals Connector (OSTI)

A Metal-Ion Coordinated Hybrid Multilayer ... Support of this work by the Israel Science Foundation and the Israel Ministry of Science (Tashtiot Infrastructure Program), is gratefully acknowledged. ...

Anat Hatzor; Tamar van der Boom-Moav; Shira Yochelis; Alexander Vaskevich; Abraham Shanzer; Israel Rubinstein

2000-04-21T23:59:59.000Z

448

A Low Cost Spectrographic Attachment for an Echelle Spectrometer  

Science Journals Connector (OSTI)

The report describes a simple, low cost photographic attachment for an echelle spectrometer. The crossed dispersion prism/echelle grating system provides a high resolution spectrum...

Brackett, John M; Mitchell, Joel C; Vickers, Thomas J

1983-01-01T23:59:59.000Z

449

Using Localized Plasmon Resonances to Enhance Absorption Efficiency in Thin-film Organic Solar Cells  

Science Journals Connector (OSTI)

We propose the use of localized surface plasmon modes excited by square metallic gratings to enhance the optical absorption of thin-film organic solar cells. Broadband absorption...

Le, Khai Q; Abass, Aimi; Maes, Bjorn; Bienstman, Peter; Alu, Andrea

450

E-Print Network 3.0 - author denis guedj Sample Search Results  

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

NUMBER 5 1 FEBRUARY 1999... an important role in future IV-IV microelectronics and optoelectronics. The authors gratefully acknowledge... . Phys. Lett., Vol. 74, No. 5, 1 February...

451

Ion  

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

calibration The absolute calibration is performed with an integrating sphere (Optronics Laboratories model 455-8-1) whose spectral radiance is precisely known. The grating...

452

Structural Health Monitoring Using FBGs for Aerospace and Composite Manufacturing  

Science Journals Connector (OSTI)

Fiber Bragg gratings may be utilized to monitor the structural integrity of key components of aerospace structures including composite parts, adhesive joints and deformation of...

Udd, Eric

453

E-Print Network 3.0 - arabidopsis nucleolus suggests Sample Search...  

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

- pricing schemes that use the game-theoretic concept of the nucleolus to provide price estimates for each... are grateful to David Johnson, Evan Kwerel, and David Parkes,...

454

E-Print Network 3.0 - acute hemolytic transfusion Sample Search...  

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

we are grateful to Dr Descazeaud, Summary: is a cornerstone of the management of sickle cell disease but carries a high risk of hemolytic transfusion reaction... and...

455

EveningCollege MSUAlumniAssociation/EveningCollege  

E-Print Network (OSTI)

gratefully acknowledges the following for their generous support: Burcham Hills Retirement Community, East & Recreation Forest Akers Golf Courses Holocaust Memorial Center, Detroit Kellogg Center for Continuing

456

Modified Schwarzschild imaging spectrometer with a low F-number and a long slit  

Science Journals Connector (OSTI)

A modified Schwarzschild imaging spectrometer utilizing three nonconcentric aspheric mirrors and a plane grating is designed that can handle low F-number, long slit, and broad spectral...

Xue, Qingsheng

2013-01-01T23:59:59.000Z

457

E-Print Network 3.0 - annular bragg lasers Sample Search Results  

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

volume Bragg gratings recorded in a photo... temperatures up to 400C, high power laser radiation. Transmitting and ... Source: Glebov, Leon - School of Optics (CREOLE),...

458

ESS 2012 Peer Review - Experimental Investigation of Silicon...  

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

27, 2012 Robert Kaplar, David Hughart, Sandeepan DasGupta, Matthew Marinella, Mark Smith, and Stanley Atcitty The authors gratefully acknowledge the support of Dr. Imre Gyuk...

459

I NUREGICR--5688  

Office of Scientific and Technical Information (OSTI)

vided by Robert Armstrong, David Crouthamel, Chongwei Ran, Shyh-shyan Hsu, and David Smith. Mike Porter has typed, assembled, and produced the report. We gratefully acknowledge...

460

Procuring Fuel Cells for Stationary Power: A Guide for Federal...  

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

Energy), and Asim Hussain (Bloom Energy). For comprehensive editing, publication, and Web support, we are grateful to Ashley Smith (Sentech SRA International) and Sheena...

Note: This page contains sample records for the topic "grated analy sis" 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

E-Print Network 3.0 - air furnace design Sample Search Results  

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

IN MUNICIPAL INCINERATOR Summary: cal to good furnace performance and to mainten ance of air pollution control. Early in 1967 the writer... of the grate roughly equivalent to...

462

Transverse instability of energy-exchanging counterpropagating waves in photorefractive media  

Science Journals Connector (OSTI)

The transverse instability of counterpropagating waves in photorefractive media that is due to the formation of reflection gratings is studied. We obtain new solutions for the...

Safiman, M; Zozulya, A A; Anderson, D Z

1994-01-01T23:59:59.000Z

463

78 July 2007 Physics Today www.physicstoday.org stable isotopes within an object; images  

E-Print Network (OSTI)

but in the real world of organic carbon compounds. He described the potential role of mo­ lecular imprints US graduate stu­ dent of Bruno Rossi. His 1942 PhD the­ sis was titled ``Intensity of Cosmic Rays. From 1943 to 1946 Greisen was a member of the group of physicists who worked on the Manhattan Project

Greisen, Eric

464

17-18 March, 2002 (3-4 Muharram, 1423) In CooperationWith  

E-Print Network (OSTI)

ScienceDepartment ..SIS Project Leader Infonnation Technology Center King Fahd University of Petroleum& Minerals, DhahranScienceDepartment King Fahd University of Petroleum& Minerals, Dhahran ma2hra bi(ii)kfu Dm.edu.s~ ABSTRACT and was processed in batches. Students or advisors were not able to know the status of different sections, resulting

Maghrabi, Talal H.

465

Move Frame Scheduling and Mixed SchedulingAllocation for the Automated Synthesis of Digital Systems y  

E-Print Network (OSTI)

steps: 1) Data path synthe­ sis (operation scheduling and hardware allocation), and 2) Control path design. In the scheduling phase, operations are assigned to the appropriate control steps. The allocaMove Frame Scheduling and Mixed Scheduling­Allocation for the Automated Synthesis of Digital

Nourani, Mehrdad

466

CX-011107: Categorical Exclusion Determination  

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

High Efficiency Thin Film Fe2SiS4 and Fe2GeS4-based Cells Prepared from Low-Cost Solution CX(s) Applied: B3.6 Date: 08/12/2013 Location(s): Delaware Offices(s): Golden Field Office

467

Modeling Multi-state Diffusion Process in Complex Networks: Theory and Applications  

E-Print Network (OSTI)

Modeling Multi-state Diffusion Process in Complex Networks: Theory and Applications Yishi Lin John networks (e.g., the Internet or online social networks). Conventional approach is to use SIS model (or its derivatives). However, these models usually are over-simplified and may not be applicable in realistic

Lui, John C.S.

468

Evolution of self-incompatibility: Early Views  

E-Print Network (OSTI)

Evolution of self-incompatibility: Early Views: Whitehouse (1950): 1. Sudden rise of angiosperms by Whitehouse (1950). Isolation of components of the self-incompatibilities paved the way to study the evolution of SIs Matton et al. (1994): Molecular data supports Bateman. Three self-incompatibility systems

Bhattacharyya, Madan Kumar

469

YAML: A Tool for Hardware Design Visualization and Capture Vivek Sinha  

E-Print Network (OSTI)

YAML: A Tool for Hardware Design Visualization and Capture Vivek Sinha , Frederic Doucet objects and a range of object relationships that are crucial to real-life embedded system designs. A YAML and hardware synthe- sis. 1 Introduction Increased complexity of microelectronic systems de- mands an increase

Gupta, Rajesh

470

The Bakerian Lecture, 1996. Genetically engineered synthesis of natural products  

Science Journals Connector (OSTI)

...enzymes, often large and multi-functional, e.g...have resulted in the multi-enzyme synthe- sis...sequences leading from the building blocks of acetate (to...pathway to allow the multi-step synthesis of geranyl...synthesis of this large family of alkaloids (greater...

1998-01-01T23:59:59.000Z

471

High Energy Density Cathode for Lithium Batteries: From LiCoO_(2) to Sulfur  

E-Print Network (OSTI)

addressed, i.e. the safety hazard resulted from the Li dendrite formation on the Li metal anode and the poor cyclability arising from the polysulfides shuttle. Firstly, to overcome the safety issue, this dissertation reported a lithiated Si-S (LSS) battery...

Pu, Xiong

2014-05-29T23:59:59.000Z

472

FOR STUDENTS // FEbRUaRy 2012 FOR EDUCaTION  

E-Print Network (OSTI)

basic Search (autocomplete) 10 Full Search 11 browsing Menus 12 PERFORMING aNaLySIS 12 Navigating Functions 13 Stock/Company Screening 14 analyzing a Company 15 analyzing an Index, bond or Currency 16 Ex sectors. It features company financials, market data spanning more than 20 years, charts, statistics

Banaji,. Murad

473

Physics 141 & Physics 153 Laboratory Schedule -Physics 141 & 153 -Spring 2008  

E-Print Network (OSTI)

Physics 141 & Physics 153 i Laboratory Schedule - Physics 141 & 153 - Spring 2008 Monday Tuesday ­ No Labs! #12;Physics 141 & Physics 153 ii Lab Instructor Information Name: Office: Phone: Email: Mailbox: · Write your lab instructor's name on it · Give it to Theresa Sis, Main Physics Office, 116 Brace Lab

Farritor, Shane

474

A structural approach to delay optimization in combinational circuits  

E-Print Network (OSTI)

about the area penalty incurred due to delay optimization. The experiments were performed on a SPARC-20 workstation. 1. Comparison with Delay Optimization Script in SIS 1. 3 We applied LOD to the two-input gate versions of the benchmark circuits...

Munshi, Avinash

1999-01-01T23:59:59.000Z

475

Air Conditioning Cold/Heat Source Analysis of the Inclusion of the Monetary Values of Environmental Damage Based on the LCA Theory  

E-Print Network (OSTI)

of Life Cycle Assessment (LCA) and Willingness - to - pay (WTP). The analysis makes it possible to compare the technical and eco-nomic differences of the air conditioning system based on business economics to a system with greater empha-sis on socio...

Li, Z.; Duanmu, L.; Shu, H.; Zhu, Y.

2006-01-01T23:59:59.000Z

476

AgricultureandEnvironment Original article  

E-Print Network (OSTI)

Infrared and solid state 13 C NMR spectroscopy, flash pyrolysis in the presence of tetramethylammonium) of their functional groups. Analytical and preparative thermochemoly- sis (pyrolysis using tetraalkylammonium technique. Pyrolysis with in situ methylation is a new, pow- erful technique for the structural analysis

Paris-Sud XI, Université de

477

The Personal Information Menu The Personal Information menu of the Student Center is your access point for phone numbers,  

E-Print Network (OSTI)

@virginia.edu phone - 434-982-3200 Call the Help Desk at 4-HELP Portal online help http://www.sis.virginia.edu/CenterHelp, and demographic information. This a great tool to make sure the information the University has on file for you

Acton, Scott

478

NANO: Brief Reports and Reviews Vol. 2, No. 3 (2007) 149156  

E-Print Network (OSTI)

) are of potential interest for cataly- sis including in fuel cells,2 for hydrogen storage,3 and as photoelectrochemical cells.4 In addition, metal NPs/CNT hybrid structures show potential for use in sensing devices.5 acid treatments to create such linking groups as car- boxyl (-COOH), carbonyl (-C=O) and hydroxyl (-OH

479

Modulation of the c-Met/Hepatocyte Growth Factor Pathway in Small Cell Lung Cancer  

Science Journals Connector (OSTI)

...important for the function of the c-sis/platelet-derived growth...Triche, I. J., and Denny, C. I. A second Ewing's sarcoma translocation...E., Roussel, M. F., Denny, C. I., and Shapiro, D. N. A variant Ewing's sarcoma...

Gautam Maulik; Takashi Kijima; Patrick C. Ma; Sudip K. Ghosh; Jeffrey Lin; Geoffrey I. Shapiro; Erik Schaefer; Elena Tibaldi; Bruce E. Johnson; and Ravi Salgia

2002-02-01T23:59:59.000Z

480

List of Participants Roelof M. J. Boumans Gund Institute for Ecological Economics, University of  

E-Print Network (OSTI)

, U.S.A. Long-term history and future of technology with focus on energy, transport, and com concepts/modeling; energy and climate modeling/policy; historical socioecologial developments John Finnigan history, history of science, forest history, history of witchcraft and cri- sis; extreme climate events

Note: This page contains sample records for the topic "grated analy sis" 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

Homologous recombination catalyzed by a nuclear extract from Xenopus oocytes  

Science Journals Connector (OSTI)

...anticipated possible requirements for energy and RNA or DNA synthe- sis...to 20-fold dilution of nuclear components inherent in the...cofactors appear to satisfy an energy requirement, since nonhydrolyzable...Even if the dNTPs are all nuclear, their concentra- tions in...

C W Lehman; D Carroll

1991-01-01T23:59:59.000Z

482

Production of Amylase in Liquid Culture by a Strain of Aspergillus oryzae  

Science Journals Connector (OSTI)

...Bernfeld, P. 1951. Enzymes of starch degradation and synthe- sis...of dry cultures of molds for starch saccharification. Spirtovaya...I. 1948. The relation of starch saccharifying power of fungi...maltase by certain Aspergilli. Cereal Chem. 27:322-330. 33...

A. K. Kundu; S. Das

1970-04-01T23:59:59.000Z

483

Assembly of 60S ribosomal subunits is perturbed in temperature-sensitive yeast mutants defective in ribosomal protein L16.  

Science Journals Connector (OSTI)

...temperature-sensitive yeast mutants defective in ribosomal protein L16...RIBOSOME ASSEMBLY MUTANTS DEFECTIVE FOR L16 5689 sis of the 35S...temperature (24). Strains car- rying mutations in the PRTI...assembled before the shift are not defective for function in translation...

M Moritz; B A Pulaski; J L Woolford Jr

1991-11-01T23:59:59.000Z

484

Application of coincidence ion mass spectrometry for chemical and structural analysis at the sub-micron scale  

E-Print Network (OSTI)

Surfaces can be probed with a variant of secondary ion mass spectrometry (SIMS) where the bombardment is with a sequence of single keV projectiles, each resolved in time and space, coupled with the separate record of the secondary ions (SIs) ejected...

Balderas, Sara

2005-11-01T23:59:59.000Z

485

Membrane Binding of Ribosomes Occurs at SecYE-based Sites in the Archaea Haloferax volcanii  

E-Print Network (OSTI)

by the signal recognition particle (SRP).10 SRP binding subsequently slows or pre- vents the continuation of further protein synthe- sis.11 The ternary complex of ribosome­nascent polypeptide chain­SRP then interacts with the ER membrane via the affinities of SRP for the mem- brane-associated SRP receptor,12

Eichler, Jerry

486

Dropouts of the outer electron radiation belt in response to solar wind stream interfaces: global positioning system observations  

Science Journals Connector (OSTI)

...epoch plots of both solar wind and magnetospheric...67 SIs. In each panel the superposed epoch...The lower three panels give the solar wind radial velocity...Superposed epoch plots of solar wind and magnetospheric...table-2. In each panel the superposed epoch...

2010-01-01T23:59:59.000Z

487

How are we searching the World Wide Web? A comparison of nine search engine transaction logs  

E-Print Network (OSTI)

Bernard J. Jansen a,*, Amanda Spink b a School of Information Sciences and Technology, The Pennsylvania 6426. E-mail addresses: jjansen@acm.org (B.J. Jansen), aspink@sis.pitt.edu (A. Spink). Information and interface factors (Spink, Ozmutlu, Ozmutlu, & Jansen, 2002b). We specifically inves- tigate

Jansen, James

488

An analysis of Web searching by European AlltheWeb.com users  

E-Print Network (OSTI)

An analysis of Web searching by European AlltheWeb.com users Bernard J. Jansen a,*, Amanda Spink b.J. Jansen), aspink@mail.sis.pitt.edu (A. Spink). 1 Tel.: +1-412-624-5230; fax: +1-412-624-5231. 0306 of Web research concerning how users interact with Web search engines (Spink, Jansen, Wolfram

Jansen, James

489

Hydrothermal Synthesis of Dy-Doped BaTiO3 Powders ERSIN E. OREN and A. CUNEYT TAS  

E-Print Network (OSTI)

. Hydrothermal processing sis method used and temperature, may exhibit four different of BaTiO3 powders has) are "ferroelectric." hydrothermal processing required a pH 12 in the aqueous BaTiO3 is of the tetragonal symmetryHydrothermal Synthesis of Dy-Doped BaTiO3 Powders ERSIN E. OREN and A. CUNEYT TAS Submicron

Tas, A. Cuneyt

490

ABSTRACT DECOMPOSITION THEOREM AND APPLICATIONS  

E-Print Network (OSTI)

to obtain a Main Gap theorem for (5), which appears in the second author's Ph.D. the- sis [Le]. The main gap T is superstable and satisfies NDOP, every -saturated model has a decomposition in terms of an independent tree of small models, and furthermore, the tree is well-founded. This implies that the number of nonisomorphic

Grossberg, Rami

491

ABSTRACT DECOMPOSITION THEOREM AND APPLICATIONS  

E-Print Network (OSTI)

to obtain a Main Gap theorem for (5), which appears in the second author's Ph.D. the­ sis [Le]. The main gap T is superstable and satisfies NDOP, every # # ­saturated model has a decomposition in terms of an independent tree of small models, and furthermore, the tree is well­founded. This implies that the number of nonisomorphic

Grossberg, Rami

492

Robust SVM-based biomarker selection with noisy mass spectrometric proteomic data  

E-Print Network (OSTI)

, progno- sis, choice of therapy, and study of disease activity. To this aim, feature selection techniques is a major research topic in supervised learning and data mining [10, 16, 12]. For the sake of the learning­7], in order to detect potential tumor biomarkers for (early) cancer diagnosis (clinical proteomics). A summary

Marchiori, Elena

493

24 More Years of Numerical Weather Prediction: A Model Performance Model  

E-Print Network (OSTI)

24 More Years of Numerical Weather Prediction: A Model Performance Model Gerard Cats May 26, 2008 Abstract For two formulations of currently usual numerical weather prediction models the evolution in such a model is much 1 #12;24 More Years of Numerical Weather Prediction Gerard Cats higher than in a sis

Stoffelen, Ad

494

Optical Technology Needs for Future Space Telescopes  

E-Print Network (OSTI)

instruments & sensors. Future Space Telescopes will operate over broad spectrum: Gamma Rays, X-Rays, XUV and Sensors Direct Sensing of Particles, Fields and Waves See Scientific Instruments and Sensors (SIS Structure #12;NASA's Science Missions Directorate Themes: Earth Science Sun-Solar System Connection Solar

Van Stryland, Eric

495

BULGARIAN ACADEMY OF SCIENCES PROBLEMS OF ENGINEERING CYBERNETICS AND ROBOTICS, 59  

E-Print Network (OSTI)

possibility for education in higher educational institutions in the EU. The information would be useful, and Institute of Information Technologies, 1113 Sofia E-mail: niki@iinf.bas.bg ** SIS Technology Ltd. 2 Kukush and obtaining the required information costs time and resources. Information technology presents the opportunity

Borissova, Daniela

496

Mapping of Ice Sheet Deep Layers and Fast Outlet Glaciers with Multi-Channel-High-Sensitivity Radar  

E-Print Network (OSTI)

This dissertation discusses the waveform design, the development of SAR and clutter reduction algorithms for MCRDS radars that are developed at CReSIS to map the ice-sheet bed, deep internal layers and fast-flowing outlet glaciers. It is verified...

Li, Jilu

2009-12-29T23:59:59.000Z

497

Crossed beam reaction of cyano radicals with hydrocarbon molecules. III. Chemical dynamics of vinylcyanide ,,C2H3CN;X 1  

E-Print Network (OSTI)

of the olefin to give a long-lived CH2CH2CN intermediate. This collision complex fragments through a tight exit have been performed since they occur commonly in nature and play a key part in a wide variety, pyroly- sis, gas discharges, and in situ chemical reactions. In our laboratory we have recently developed

Kaiser, Ralf I.

498

FORTRAN M AS A LANGUAGE FOR BUILDING EARTH SYSTEM MODELS \\Lambda  

E-Print Network (OSTI)

FORTRAN M AS A LANGUAGE FOR BUILDING EARTH SYSTEM MODELS \\Lambda Ian Foster Mathematics as a tool for building earth system models on massively parallel computers. I hypothesize that the use to investigate this hypothe­ sis. 2. Earth System Models An earth system model is a computer code designed

499

Fast 3D Scanning for Biometric Identification and Verification  

E-Print Network (OSTI)

Fast 3D Scanning for Biometric Identification and Verification June 2011 Authors Anselmo., & Chen, A. (2011). Fast 3D Scanning for Biometric Identification and Verification. (Prepared by RTI..................................................10 Summary and Findings for Integration of Imperceptible Structured Lighting and SIS's 3D Snapshot

McShea, Daniel W.

500

Esso Chemie to use HTP process  

Science Journals Connector (OSTI)

Esso Chemie will be the first licensee of the Hoechst high-temperature pyroly-sis (HTP) acetylene process (see Brief, page 46). The German affiliate of Esso Chemical will build its HTP unit at Esso, A.G.'s refinery at Cologne, West Germany. Capacity will ...

1966-08-29T23:59:59.000Z