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Note: This page contains sample records for the topic "linear energy transfer" from the National Library of EnergyBeta (NLEBeta).
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they are not comprehensive nor are they the most current set.
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1

Assessment of Low Linear Energy Transfer Radiation–Induced Bystander Mutagenesis in a Three-Dimensional Culture Model  

Science Journals Connector (OSTI)

...Department of Energy cleanup operations...mutation was a measurement of changes...with low-energy protons (28...Puck TT. Measurement of mutagenesis...on Radiation Units and Measurements; 1984. 23...low linear energy transfer radiation-induced...

Rudranath Persaud; Hongning Zhou; Sarah E. Baker; Tom K. Hei; and Eric J. Hall

2005-11-01T23:59:59.000Z

2

Human In vivo Dose-Response to Controlled, Low-Dose Low Linear Energy Transfer Ionizing Radiation Exposure  

Science Journals Connector (OSTI)

...biotinylated nucleotide analogue/ribonucleotide mix. The biotinylated cRNA targets were then...dose-response to controlled, low-dose low linear energy transfer ionizing radiation exposure. | The effect of low doses of low-linear energy transfer (photon) ionizing radiation...

Zelanna Goldberg; David M. Rocke; Chad Schwietert; Susanne R. Berglund; Alison Santana; Angela Jones; Jörg Lehmann; Robin Stern; Ruixiao Lu; and Christine Hartmann Siantar

2006-06-15T23:59:59.000Z

3

Human In vivo Dose-Response to Controlled, Low-Dose Low Linear Energy Transfer Ionizing Radiation Exposure  

Science Journals Connector (OSTI)

...effects of low-dose low-linear energy transfer ionizing radiation (LDIR) in humans...direct evidence that doses in the range of 1 to 10 cGy...the intentional radiation of healthy tissue...the response to ionizing radiation. Attempts...

Zelanna Goldberg; David M. Rocke; Chad Schwietert; Susanne R. Berglund; Alison Santana; Angela Jones; Jörg Lehmann; Robin Stern; Ruixiao Lu; and Christine Hartmann Siantar

2006-06-15T23:59:59.000Z

4

High-Linear Energy Transfer Irradiation Targeted to Skeletal Metastases by the ?-Emitter 223Ra: Adjuvant or Alternative to Conventional Modalities?  

Science Journals Connector (OSTI)

...Cancer High-Linear Energy Transfer Irradiation...Hospital, N-0310 Oslo, Norway. Phone: 47-22934000...Algeta ASA (Oslo, Norway), 5 5 http://www...Laboratory at Institute for Energy Technology (Kjeller, Norway), where the sterile...

Øyvind S. Bruland; Sten Nilsson; Darrell R. Fisher; and Roy H. Larsen

2006-10-15T23:59:59.000Z

5

2378 J. Phys. Chem. 1990. 94, 2378-2380 Linear Free Energy Relations for MultlelectronTransfer Kinetics: A Brief Look at the  

E-Print Network [OSTI]

Transfer Kinetics: A Brief Look at the Brcansted/Tafel Analogy M. S. Ram and Joseph T . Hupp* Department linear free energy relation (Brmsted plot) for mechanistic purposes is closely analogous to the well-knownTafel these relations take the form of so-called "Tafel plots", i.e., plots of In i (or sometimes In k ) versus

6

Inverse Energy Transfer  

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

which is unstable. It saturates by transfer to a separate, damped eigenmode (i.e., a subcritical spectrum of damped waves). Inverse energy transfer is carried by three-wave...

7

An accurate and linear-scaling method for calculating charge-transfer excitation energies and diabatic couplings  

E-Print Network [OSTI]

Quantum–mechanical methods that are both computationally fast and accurate are not yet available for electronic excitations having charge transfer character. In this work, we present a significant step forward towards this ...

Pavanello, Michele

8

Assessment of Low Linear Energy Transfer Radiation–Induced Bystander Mutagenesis in a Three-Dimensional Culture Model  

Science Journals Connector (OSTI)

...them in order to generate high quality proteomics fingerprints. We...stocks so that samples used for quality controls could last for at...example, method settings, laser energy, matrix blaster shots, and...also dramatically affected the quality of the spectrum. The results...

Rudranath Persaud; Hongning Zhou; Sarah E. Baker; Tom K. Hei; and Eric J. Hall

2005-11-01T23:59:59.000Z

9

Induction and Persistence of Large ?H2AX Foci by High Linear Energy Transfer Radiation in DNA-Dependent protein kinase–Deficient Cells  

SciTech Connect (OSTI)

Purpose: To evaluate the cell response to DNA double-strand breaks induced by low and high linear energy transfer (LET) radiations when the catalytic subunit of DNA-dependent protein kinase (DNA-PKcs), an essential protein of the nonhomologous end-joining repair pathway, lacks kinase activity. Methods and Materials: CHO10B2, a Chinese hamster ovary cell line, and its derived radiosensitive mutant cell line, irs-20, lacking DNA-PKcs activity, were evaluated after 0 to 3 Gy of ?-rays, plateau and Bragg peak protons, and lithium beams by clonogenic assay, and as a measurement of double-strand breaks, phosphorylated H2AX (?H2AX) foci number and size were quantified by immunocytofluorescence. Results: Irs-20 exhibited greater radiosensitivity and a higher amount of ?H2AX foci than CHO10B2 at 6 hours after irradiation for all types of radiations. Remarkably, CHO10B2 and irs-20 maintained their difference in radiosensitivity after high-LET radiation. Six hours after low-LET radiations, irs-20 did not reach basal levels of ?H2AX at high doses, whereas CHO10B2 recovered basal levels for all doses. After high-LET radiation, only CHO10B2 exhibited a reduction in ?H2AX foci, but it never reached basal levels. Persistent foci in irs-20 confirmed a repair deficiency. Interestingly, after 30 minutes of high-LET radiation both cell lines exhibited large foci (size >0.9 ?m{sup 2}) related to the damage nature, whereas at 6 hours irs-20 showed a higher amount of large foci than CHO10B2, with a 7-fold increase at 3 Gy, that could also be associated to radiosensitivity. Conclusions: We demonstrated, for the first time, an association between deficient DNA-PKcs activity and not only high levels of H2AX phosphorylation but also persistence and size increase of ?H2AX foci after high-LET irradiation.

Bracalente, Candelaria; Ibañez, Irene L. [Departamento de Micro y Nanotecnología, Comisión Nacional de Energía Atómica, San Martín, Buenos Aires (Argentina); Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires (Argentina); Molinari, Beatriz [Departamento de Radiobiología, Comisión Nacional de Energía Atómica, San Martín, Buenos Aires (Argentina); Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires (Argentina); Palmieri, Mónica [Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires (Argentina); Kreiner, Andrés [Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires (Argentina); Gerencia de Investigación y Aplicaciones, Comisión Nacional de Energía Atómica, San Martín, Buenos Aires (Argentina); Escuela de Ciencia y Tecnología, Universidad Nacional de San Martín, San Martín, Buenos Aires (Argentina); Valda, Alejandro [Escuela de Ciencia y Tecnología, Universidad Nacional de San Martín, San Martín, Buenos Aires (Argentina); and others

2013-11-15T23:59:59.000Z

10

Transfers | Department of Energy  

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

Transfers Transfers Transfers Transfer means a change of an employee, from one Federal government branch (executive, legislative, judicial) to another or from one agency to another without a break in service of 1 full work day. Below are a few tips to better assist you when you transer agencies: If you have any dependents you must complete a standard Form 2809 during new employee orientation as this information does not transfer over automatically. You will not be able to change your coverage until open season or a life changing event occurs. At the time of new employee orientation you must provide your most recent leave and earning statement (LES) so that your leave may be updated accordingly. If you do not provide us with this document it will take approximately 6 weeks before your annual and sick leave is updated.

11

Energy Cost of Information Transfer  

Science Journals Connector (OSTI)

From thermodynamic and causality considerations a general upper bound on the rate at which information can be transferred in terms of the message energy is inferred. This bound is consistent with Shannon's bounds for a band-limited channel. It prescribes the minimum energy cost for information transferred over a given time interval. As an application, a fundamental upper bound of 1015 operations/sec on the speed of an ideal digital computer is established.

Jacob D. Bekenstein

1981-03-09T23:59:59.000Z

12

Flow and heat transfer around a linear array of spheres  

SciTech Connect (OSTI)

Laminar fluid flow and forced convection heat transfer over equally space linear arrays of spheres are analyzed using the finite element package FIDAP. For the arrays, sphere spacings of 1.5, 2, and 3 diameters are examined at Reynolds numbers of 40, 80, and 120 and Prandtl numbers ranging from 0.73 to 7.3. Average Nusselt numbers and drag coefficient data for a linear array of eight spheres (as an approximation to the developing region) and a single sphere with periodic boundary conditions (as an approximation to fully developed flow) are presented and correlated.

Lloyd, B. (Marathon Oil Co., Shreveport, LA (United States)); Boehn, R. (Univ. of Nevada, Las Vegas, NV (United States). Mechanical Engineering Dept.)

1994-08-01T23:59:59.000Z

13

Energy Transfer-MDE | Open Energy Information  

Open Energy Info (EERE)

Transfer-MDE Transfer-MDE Jump to: navigation, search Name Energy Transfer-MDE Address 1100 Steubenville Rd Place Carrollton, Ohio Zip 4415 Sector Biofuels, Geothermal energy, Solar, Wind energy Product Manufacturing Phone number 330-627-4122 Website http://www.energytransferinc.c Coordinates 40.5560917°, -81.0535637° 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":40.5560917,"lon":-81.0535637,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

14

Analysis of linear energy transfers and quality factors of charged particles produced by spontaneous fission neutrons from 252Cf and 244Pu in the human body  

Science Journals Connector (OSTI)

......determining the energy of charged...emitted from neutron-induced nuclear reactions...of neutron spectra on D T and...spontaneous fission of 252Cf...Watt B. E. Energy spectrum of neutrons from thermal fission of 235U...irradiated by high energy hadrons......

Akira Endo; Tatsuhiko Sato

2013-04-01T23:59:59.000Z

15

Linear Fresnel | Department of Energy  

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

Linear Fresnel systems, which are a type of linear concentrator, are active in Germany, Spain, Australia, India, and the United States. The SunShot Initiative funds R&D on...

16

Calculation of probabilities of transfer, recurrence intervals, and positional indices for linear compartment models. Environmental Sciences Division Publication no. 1544  

SciTech Connect (OSTI)

Six indices are presented for linear compartment systems that quantify the probable pathways of matter or energy transfer, the likelihood of recurrence if the model contains feedback loops, and the number of steps (transfers) through the system. General examples are used to illustrate how these indices can simplify the comparison of complex systems or organisms in unrelated systems.

Carney, J.H.; DeAngelis, D.L.; Gardner, R.H.; Mankin, J.B.; Post, W.M.

1981-02-01T23:59:59.000Z

17

Free energy of an anharmonic linear lattice  

Science Journals Connector (OSTI)

The anharmonic contributions of O(?4) to the free energy of a monatomic linear chain have been calculated both at high and zero temperatures. The contributions to the zero-point energy are also estimated using the Ludwig approximation. It turns out that the Ludwig approximation is not good for estimating the complicated anharmonic contributions to the zero-point energy.

M. R. Monga and V. K. Jindal

1975-02-15T23:59:59.000Z

18

Free Energy of the Antiferromagnetic Linear Chain  

Science Journals Connector (OSTI)

Rigorous upper and lower bounds for the free energy of the antiferromagnetic Heisenberg linear chain are obtained from general convexity properties of the free energy. The lower bound is here derived; the upper bound has been obtained previously by Bulaevskii. Both are compared with the calculations of Bonner and Fisher for finite chains.

Robert B. Griffiths

1964-11-02T23:59:59.000Z

19

Technology Transfer Overview | Department of Energy  

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

Services » Technology Transfer and Procurement » Technology Services » Technology Transfer and Procurement » Technology Transfer & Intellectual Property » Technology Transfer Overview Technology Transfer Overview Through strategic investments in science and technology, the U.S. Department of Energy (DOE) helps power and secure America's future. DOE's capabilities, and the innovations it supports, help ensure the country's role as a leader in science and technology. In particular, technology transfer supports the maturation and deployment of DOE discoveries, providing ongoing economic, security and environmental benefits for all Americans. "Technology transfer" refers to the process by which knowledge, intellectual property, or capabilities developed at the Department of Energy's National Laboratories, single-purpose research facilities, plants,

20

Technology Transfer Ombudsman Program | Department of Energy  

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

Technology Technology Transfer Ombudsman Program Technology Transfer Ombudsman Program The Technology Transfer Commercialization Act of 2000, Public Law 106-404 (PDF) was enacted in November 2000. Pursuant to Section 11, Technology Partnerships Ombudsman, each DOE national laboratory and research facility has appointed a technology partnership ombudsman (ombuds). The role of the ombuds is prevention and early resolution of disputes between the lab and inventors or private companies over technology transfer issues such as infringement, intellectual property rights, royalties and licensing, etc. The Director, Office of Conflict Prevention and Resolution, coordinates this program and compiles data for quarterly reports. See the Department of Energy Technology Transfer Ombuds (PDF).

Note: This page contains sample records for the topic "linear energy transfer" 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

The energy transfer process in planetary flybys  

Science Journals Connector (OSTI)

We illustrate the energy transfer during planetary flybys as a function of time using a number of flight mission examples. The energy transfer process is rather more complicated than a monotonic increase (or decrease) of energy with time. It exhibits temporary maxima and minima with time which then partially moderate before the asymptotic condition is obtained. The energy transfer to angular momentum is exhibited by an approximate Jacobi constant for the system. We demonstrate this with flybys that have shown unexplained behaviors: (i) the possible onset of the “Pioneer anomaly” with the gravity assist of Pioneer 11 by Saturn to hyperbolic orbit (as well as the Pioneer 10 hyperbolic gravity assist by Jupiter) and (ii) the Earth flyby anomalies of small increases in energy in the geocentric system (Galileo-I, NEAR, and Rosetta, in addition discussing the Cassini and Messenger flybys). Perhaps some small, as yet unrecognized effect in the energy-transfer process can shed light on these anomalies.

John D. Anderson; James K. Campbell; Michael Martin Nieto

2007-01-01T23:59:59.000Z

22

Linear Concentrator Systems | Open Energy Information  

Open Energy Info (EERE)

Linear Concentrator Systems Linear Concentrator Systems Jump to: navigation, search Introduction Linear concentrating collector fields consist of a large number of collectors in parallel rows that are typically aligned in a north-south orientation to maximize both annual and summertime energy collection. With a single-axis sun-tracking system, this configuration enables the mirrors to track the sun from east to west during the day, ensuring that the sun reflects continuously onto the receiver tubes. Parabolic Trough Systems The predominant CSP systems currently in operation in the United States are linear concentrators using parabolic trough collectors. In such a system, the receiver tube is positioned along the focal line of each parabola-shaped reflector. The tube is fixed to the mirror structure and

23

Definition: Dynamic Transfer | Open Energy Information  

Open Energy Info (EERE)

Transfer Transfer Jump to: navigation, search Dictionary.png Dynamic Transfer The provision of the real-time monitoring, telemetering, computer software, hardware, communications, engineering, energy accounting (including inadvertent interchange), and administration required to electronically move all or a portion of the real energy services associated with a generator or load out of one Balancing Authority Area into another. Economic Dispatch The allocation of demand to individual generating units on line to effect the most economical production of electricity.[1] Related Terms energy, electricity generation, sustainability, smart grid, Balancing Authority, Balancing Authority Area References ↑ Glossary of Terms Used in Reliability Standards An inlin LikeLike UnlikeLike

24

Non-linear dark energy clustering  

SciTech Connect (OSTI)

We consider a dark energy fluid with arbitrary sound speed and equation of state and discuss the effect of its clustering on the cold dark matter distribution at the non-linear level. We write the continuity, Euler and Poisson equations for the system in the Newtonian approximation. Then, using the time renormalization group method to resum perturbative corrections at all orders, we compute the total clustering power spectrum and matter power spectrum. At the linear level, a sound speed of dark energy different from that of light modifies the power spectrum on observationally interesting scales, such as those relevant for baryonic acoustic oscillations. We show that the effect of varying the sound speed of dark energy on the non-linear corrections to the matter power spectrum is below the per cent level, and therefore these corrections can be well modelled by their counterpart in cosmological scenarios with smooth dark energy. We also show that the non-linear effects on the matter growth index can be as large as 10–15 per cent for small scales.

Anselmi, Stefano; Ballesteros, Guillermo [Dipartimento di Fisica ''G. Galilei'', Università degli Studi di Padova, via Marzolo 8, I-35131 Padua (Italy); Pietroni, Massimo, E-mail: anselmi@pd.infn.it, E-mail: ballesteros@pd.infn.it, E-mail: pietroni@pd.infn.it [INFN — Sezione di Padova, via Marzolo 8, I-35131 Padua (Italy)

2011-11-01T23:59:59.000Z

25

Fluorescence resonance energy transfer scanning near-field optical microscopy  

Science Journals Connector (OSTI)

...and applications. New York: Wiley Interscience...Fluorescence resonance energy transfer SNOM 919...fluorescence resonance energy transfer source...Electromagnetic theory. New York: McGraw-Hill...hierarchy and directed energy transfer in conjugated...

2004-01-01T23:59:59.000Z

26

Direct Simulation of Internal Wave Energy Transfer  

Science Journals Connector (OSTI)

A three-dimensional nonhydrostatic numerical model is used to calculate nonlinear energy transfers within decaying Garrett–Munk internal wavefields. Inviscid wave interactions are calculated over horizontal scales from about 1 to 80 km and for ...

Kraig B. Winters; Eric A. D’Asaro

1997-09-01T23:59:59.000Z

27

Linear Kinetic Heat Transfer: Moment Equations, Boundary Conditions, and Knudsen  

E-Print Network [OSTI]

] and phonons [6], and the radiative transfer equation [7]. The solution of any kinetic equation is usually][25], radiative transfer [7][26], and phonon transport in crystals [6]. Despite the long history, and success method, and the methods employed in [18][19][20], are based solely on the transport equations in the bulk, and

Struchtrup, Henning

28

Low-energy nuclear transfer reactions in muonic molecules  

Science Journals Connector (OSTI)

A scheme, analogous to the linear combination of atomic orbitals, is proposed to calculate rates of reactions of nucleon-group transfer between nuclei confined in muonic molecules. It is pointed out that such rates can be rather high if the energy release of a reaction is small. As an example, the rate of the reaction p-?-10Be?t-?-8Be is calculated.

V. B. Belyaev; S. A. Rakityansky; H. Fiedeldey; S. A. Sofianos

1994-07-01T23:59:59.000Z

29

Positive energy quantization of linear dynamics  

E-Print Network [OSTI]

The abstract mathematical structure behind the positive energy quantization of linear classical systems is described. It is separated into 3 stages: the description of a classical system, the algebraic quantization and the Hilbert space quantization. 4 kinds of systems are distinguished: neutral bosonic, neutral bosonic, charged bosonic and charged fermionic. The formalism that is described follows closely the usual constructions employed in quantum physics to introduce non-interacting quantum fields.

Derezinski, Jan

2009-01-01T23:59:59.000Z

30

Technology Transfer Success Stories, Energy  

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

Energy Energy Navigate Home About Us Contact Information Hide Thumbs First Previous Pause Next Last Set Speed Slideshow speed: 5 seconds Move Autoinduction system New Image Set Autoinduction Autoinduction System The award winning Overnight Express(tm) Autoinduction System developed at BNL simplifies protein production in the widely used T7 gene expression system. Decontamination Foam-based decontamination Foam-based decontamination, developed at INL and licensed to Environmental Alternatives, Inc. provides for non-destructive removal and decontamination of radionuclides from concrete and other surfaces. Motion to energy power generation system Motion to Energy Power Generation System Motion to energy power generation system, developed at INL with its licensee M2E Power, Inc., converts the power of motion into electrical

31

Effective Transfer of Industrial Energy Conservation Technologies  

E-Print Network [OSTI]

. Various avenues exist for transferring energy conservation technologies to industry. Briefing documents, presentations at trade meetings and con ferences, or simple diffusion by word-of-mouth are a few methods. However, when left to chance, tech... of 444 ESL-IE-83-04-68 Proceedings from the Fifth Industrial Energy Technology Conference Volume II, Houston, TX, April 17-20, 1983 TABLE 1. Current Energy Impacts of Foam Processing of Textiles BROADWOVENS AND KNITS User Site (a) Average Production...

Clement, M.; Vallario, R. W.

1983-01-01T23:59:59.000Z

32

Technology Transfer Reporting Form | Department of Energy  

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

Transfer Reporting Form Technology Transfer Reporting Form Technology Transfer Reporting Form More Documents & Publications Technology Partnership Ombudsman - Roles,...

33

Mapping defects in a carbon nanotube by momentum transfer dependent electron energy loss spectromicroscopy  

E-Print Network [OSTI]

Mapping defects in a carbon nanotube by momentum transfer dependent electron energy loss nanotubes Electron microscopy Electron energy loss spectroscopy q-dependence Electron linear dichroism a b s t r a c t Momentum resolved electron energy loss (EELS) spectra of multi-walled carbon nanotubes

Hitchcock, Adam P.

34

Nonlinear Energy Transfer in a Narrow Gravity-Wave Spectrum  

Science Journals Connector (OSTI)

...research-article Nonlinear Energy Transfer in a Narrow Gravity-Wave Spectrum J. C...calculation of the rate of energy transfer due to...a narrow gravity wave spectrum according...typical narrow wind wave spectrum on the nonlinear energy transfer are very...

1979-01-01T23:59:59.000Z

35

Resonant energy transfer in light harvesting and light emitting applications.  

E-Print Network [OSTI]

??The performance of light emitting and light harvesting devices is improved by utilising resonant energy transfer. In lighting applications, the emission energy of a semiconductor… (more)

Chanyawadee, Soontorn

2009-01-01T23:59:59.000Z

36

Linear PM Generator for Wave Energy Conversion.  

E-Print Network [OSTI]

??The main objective of this thesis is to design a selected version of linear PM generator and to determine the electromechanical characteristics at variable operating… (more)

Parthasarathy, Rajkumar

2012-01-01T23:59:59.000Z

37

Soft materials for linear electromechanical energy conversion  

E-Print Network [OSTI]

We briefly review the literature of linear electromechanical effects of soft materials, especially in synthetic and biological polymers and liquid crystals (LCs). First we describe results on direct and converse piezoelectricity, and then we discuss a linear coupling between bending and electric polarization, which maybe called bending piezoelectricity, or flexoelectricity.

Antal Jakli; Nandor Eber

2014-07-29T23:59:59.000Z

38

Experimental and numerical heat transfer analysis of a V-cavity absorber for linear parabolic trough solar collector  

Science Journals Connector (OSTI)

Abstract In the present study, a V-cavity absorber with rectangular fins that can be used in the linear parabolic trough collector (PTC) system was proposed and investigated both theoretically and experimentally. The optical performance of the absorber was studied by means of Monte-Carlo ray-tracing (MCRT) method. An energy balance model and a more detailed three-dimensional numerical model were developed to analyze the flow and heat transfer characteristics. Moreover, an experimental setup was built to validate the theoretical analysis. A reasonable agreement between the theoretical and experimental results was achieved, which proves the feasibility and reliability of the models. The results show that the sunlight could be reflected repeatedly by the triangle shape and nearly no sunlight escapes. The absorber with rectangular fins has a better heat transfer performance with higher outlet temperature of heat transfer fluid (HTF), lower temperature of heating surface and lower heat loss than those of absorber without fins. The effects of heat flux distribution, mass flow rate and direct normal irradiance on the heat transfer performance were further discussed. In addition, the variations of the heat transfer coefficient along z axial direction with different mass flow rates were also calculated based on the numerical results.

X. Xiao; P. Zhang; D.D. Shao; M. Li

2014-01-01T23:59:59.000Z

39

Applications of Polyparameter Linear Free Energy Relationships in Environmental Chemistry  

Science Journals Connector (OSTI)

Applications of Polyparameter Linear Free Energy Relationships in Environmental Chemistry ... Polyparameter linear free energy relationships (PP-LFERs) have been proven to be useful to characterize the equilibrium partitioning of organic chemicals in various environmental and technical partitioning systems and predict the respective partition coefficients. ...

Satoshi Endo; Kai-Uwe Goss

2014-10-03T23:59:59.000Z

40

Energy Conservation via Electron-Transferring Flavoprotein in Anaerobic Bacteria  

Science Journals Connector (OSTI)

...February 1, 2008 MINIREVIEW MINIREVIEW Energy Conservation via Electron-Transferring...Philipps-Universitat, 35032 Marburg, Germany Energy conservation in chemotrophic organisms...pathways. In the oxidative part or branch, energy-rich compounds are formed, from which...

Gloria Herrmann; Elamparithi Jayamani; Galina Mai; Wolfgang Buckel

2007-11-26T23:59:59.000Z

Note: This page contains sample records for the topic "linear energy transfer" 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

Linear Momentum and Angular-Momentum Transfer in the Reactions of O-16 with Sm-154  

E-Print Network [OSTI]

between projectile-like fragments or heavy residues and their as- sociated y rays, the angular momentum transfers for a variety of incomplete fusion reactions of 180 and 310 MeV ' 0 with ' Sm have been derived. At the higher energy, the correlation... techniques may be utilized. For example, the measurements of fission cross sections in concert with momentum transfer is one method which provides some information on the partial waves involved in incomplete fusion. Such an approach has been fol- lowed...

Namboodiri, M. N.; Choudhury, R. K.; Alder, L.; Bronson, J. D.; Fabris, D.; Garg, U.; Gonthier, P. L.; Hagel, K.; Haenni, DR; Lui, YW; Majka, Z.; Mouchaty, G.; Murakami, T.; Natowitz, J. B.; Nebbia, G.; Schmitt, R. P.; Simon, S.; Sullivan, J. P.; Youngblood, David H.

1987-01-01T23:59:59.000Z

42

The feasibility of coherent energy transfer in microtubules  

Science Journals Connector (OSTI)

...Fleming. 2009 Pathways of energy flow in LHCII from two-dimensional...reveals a carotenoid dark state in purple bacteria...Scholes. 2011 Resonance energy transfer: beyond the...Beyond Forster resonance energy transfer in biological...from serendipitous discovery to supramolecular engineering...

2014-01-01T23:59:59.000Z

43

The feasibility of coherent energy transfer in microtubules  

Science Journals Connector (OSTI)

...1004 30 39 44 The feasibility of coherent energy transfer in microtubules Travis John Adrian...theoretical analyses have shown that thermal energy may assist, rather than disrupt, quantum...necessary involvement of quantum coherent energy transfer between uniquely arranged chromophores...

2014-01-01T23:59:59.000Z

44

Resonance Energy Transfer in DNA Duplexes Labeled with Localized Dyes  

Science Journals Connector (OSTI)

Resonance Energy Transfer in DNA Duplexes Labeled with Localized Dyes ... Toward optimizing efficiency in such structures, resonant energy transfer was systematically examined in a series of dye-labeled DNA duplexes where donor–acceptor separation was incrementally changed from 0 to 16 base pairs. ... Steady state spectroscopy, single-pair fluorescence, time-resolved fluorescence, and ultrafast two-color pump–probe methods were utilized to examine the energy transfer processes. ...

Paul D. Cunningham; Ani Khachatrian; Susan Buckhout-White; Jeffrey R. Deschamps; Ellen R. Goldman; Igor L. Medintz; Joseph S. Melinger

2014-11-14T23:59:59.000Z

45

Light-harvesting, Excitation Energy/Electron Transfer, and Photoregula...  

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

Light-harvesting, Excitation EnergyElectron Transfer, and Photoregulation in Artificial Photosynthetic Systems Authors: Terazono, Y., Moore, T. A., Moore, A.L., and Gust, D....

46

Coherent Aspects of Energy Transfer Dynamics in Conjugated Polymers  

Science Journals Connector (OSTI)

Electronic energy transfer is a fundamental process occurring in conjugated polymers subsequent to exciton formation. We report how structural disorder and electronic coupling among...

Scholes, Gregory; Collini, Elisabetta

47

MHK Technologies/The Linear Generator | Open Energy Information  

Open Energy Info (EERE)

Linear Generator Linear Generator < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage The Linear Generator.jpg Technology Profile Primary Organization Trident Energy Ltd Project(s) where this technology is utilized *MHK Projects/TE4 Technology Resource Click here Wave Technology Type Click here Point Absorber Technology Readiness Level Click here TRL 1-3: Discovery / Concept Definition / Early Stage Development & Design & Engineering Technology Description The simplicity of the Trident Energy solution is based around the fact that the system has only one moving part - float / linear generator translator, which is powered by the motion of floats placed in the sea. As waves pass through the wavefarm, so the floats rise and fall. This causes relative motion between the two components of the linear generator (the translator and stator) and electricity is immediately generated. There is absolutely no contact between the two parts of the generator as the energy conversion is entirely electromagnetic.

48

Renewable Energy Innovations Garner Tech Transfer Awards | Department of  

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

Renewable Energy Innovations Garner Tech Transfer Awards Renewable Energy Innovations Garner Tech Transfer Awards Renewable Energy Innovations Garner Tech Transfer Awards May 23, 2012 - 10:11am Addthis Among the Energy Department teams that won awards at the Federal Laboratory Consortium for Technology Transfer was the team above from Pacific Northwest National Lab. They received the Interagency Partnership Award at an awards banquet in Pittsburgh on May 3. The award recognizes employees from at least two different federal agencies or laboratories who have “collaboratively accomplished outstanding work in transferring technology." | Photo courtesy of the Federal Lab Consortium. Among the Energy Department teams that won awards at the Federal Laboratory Consortium for Technology Transfer was the team above from Pacific

49

Variable-energy drift-tube linear accelerator  

DOE Patents [OSTI]

A linear accelerator system includes a plurality of post-coupled drift-tubes wherein each post coupler is bistably positionable to either of two positions which result in different field distributions. With binary control over a plurality of post couplers, a significant accumlative effect in the resulting field distribution is achieved yielding a variable-energy drift-tube linear accelerator.

Swenson, Donald A. (Los Alamos, NM); Boyd, Jr., Thomas J. (Los Alamos, NM); Potter, James M. (Los Alamos, NM); Stovall, James E. (Los Alamos, NM)

1984-01-01T23:59:59.000Z

50

Pigment organization and energy transfer in the green photosynthetic bacterium Chloroflexus aurantiacus. III. Energy transfer in whole cells  

Science Journals Connector (OSTI)

The transfer of excitation energy in intact cells of the thermophilic green photosynthetic bacterium Chloroflexus aurantiacus was studied both at low temperature and under more physiological conditions. Analysis ...

Rob J. van Dorssen; Jan Amesz

1988-02-01T23:59:59.000Z

51

Definition: Available Transfer Capability | Open Energy Information  

Open Energy Info (EERE)

Transfer Capability Transfer Capability Jump to: navigation, search Dictionary.png Available Transfer Capability A measure of the transfer capability remaining in the physical transmission network for further commercial activity over and above already committed uses. It is defined as Total Transfer Capability less existing transmission commitments (including retail customer service), less a Capacity Benefit Margin, less a Transmission Reliability Margin.[1] Related Terms transfer capability, transmission lines, transmission line, capacity benefit margin, smart grid References ↑ Glossary of Terms Used in Reliability Standards An inli LikeLike UnlikeLike You like this.Sign Up to see what your friends like. ne Glossary Definition Retrieved from "http://en.openei.org/w/index.php?title=Definition:Available_Transfer_Capability&oldid=502496

52

Definition: Transfer Capability | Open Energy Information  

Open Energy Info (EERE)

Transfer Capability Transfer Capability The measure of the ability of interconnected electric systems to move or transfer power in a reliable manner from one area to another over all transmission lines (or paths) between those areas under specified system conditions. The units of transfer capability are in terms of electric power, generally expressed in megawatts (MW). The transfer capability from 'Area A' to 'Area B' is not generally equal to the transfer capability from 'Area B' to 'Area A.'[1] Related Terms transmission lines, power, electricity generation, transmission line References ↑ Glossary of Terms Used in Reliability Standards An inl LikeLike UnlikeLike You like this.Sign Up to see what your friends like. ine Glossary Definition Retrieved from "http://en.openei.org/w/index.php?title=Definition:Transfer_Capability&oldid=480565"

53

Ultraviolet emissions from Gd3 + ions excited by energy transfer  

E-Print Network [OSTI]

Ultraviolet emissions from Gd3 + ions excited by energy transfer from Ho3 + ions Ying Yu October 2010 Accepted 28 October 2010 Available online 4 November 2010 Keywords: Ultraviolet emission Upconversion Energy transfer a b s t r a c t Ultraviolet (UV) upconversion (UC) emissions of Gd3+ ion were

Cao, Wenwu

54

Displacement Transfer Zone | Open Energy Information  

Open Energy Info (EERE)

Displacement Transfer Zone Displacement Transfer Zone Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Displacement Transfer Zone Dictionary.png Displacement Transfer Zone: Displacement transfer zones facilitate the transfer of strain between normal and strike-slip faults. Intersections between strike-slip faults in the Walker Lane and N- to NNE-striking normal faults commonly host geothermal systems, focused along the normal faults proximal to their dilational intersections with nearby strike-slip faults. Other definitions:Wikipedia Reegle Controlling Structures List of controlling structures typically associated with geothermal systems: Major Normal Fault Termination of a Major Normal Fault Stepover or Relay Ramp in Normal Fault Zones Apex or Salient of Normal Fault

55

NATIONAL ENERGY TECHNOLOGY LABORATORY Technology Transfer Novel...  

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

Alloy for the Manufacture of Improved Coronary Stents Success Story NETL Technology Transfer Group techtransfer@netl.doe.gov Contact Partners A coronary stent is a small,...

56

NATIONAL ENERGY TECHNOLOGY LABORATORY Technology Transfer Basic...  

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

Basic Immobilized Amine Sorbent (BIAS) Process Success Story NETL Technology Transfer Group techtransfer@netl.doe.gov Contact Capturing carbon dioxide (CO 2 ) from the flue or...

57

Nuclear Interaction of Very High Energy Muons at Large Momentum Transfer  

Science Journals Connector (OSTI)

......Nuclear Interaction of Very High Energy Muons at Large Momentum Transfer Kimio...nuclear interaction of very high energy muons with large energy transfers of...Nuclear Interaction of Very High Energy Muons at Large Mlomentum Transfer Kimio......

Kimio Fujimura

1965-07-01T23:59:59.000Z

58

Geo energy research and development: technology transfer update  

SciTech Connect (OSTI)

Sandia Geo Energy Programs in geothermal, coal, oil and gas, and synfuel technologies have been effective in transferring research concepts to applications in private industry. This report updates the previous summary (SAND82-0211, March 1982) to include recent technology transfers and to reflect recent changes in philosophy on technology transfer. Over 40 items transferred to industry have been identified in the areas of Hardware, Risk Removal and Understanding. Successful transfer is due largely to personal interactions between Sandia engineers and the technical staffs of private industry.

Traeger, R.K.; Dugan, V.L.

1983-01-01T23:59:59.000Z

59

Analysis of Technology Transfer in CDM Projects | Open Energy Information  

Open Energy Info (EERE)

Analysis of Technology Transfer in CDM Projects Analysis of Technology Transfer in CDM Projects Jump to: navigation, search Tool Summary Name: Analysis of Technology Transfer in CDM Projects Agency/Company /Organization: United Nations Framework Convention on Climate Change Sector: Energy, Land Topics: Finance, Implementation Resource Type: Publications Website: cdm.unfccc.int/Reference/Reports/TTreport/TTrep08.pdf Analysis of Technology Transfer in CDM Projects Screenshot References: Analysis of Technology Transfer in CDM Projects[1] Overview "Although the Clean Development Mechanism (CDM) does not have an explicit technology transfer mandate, it may contribute to technology transfer by financing emission reduction projects using technologies currently not available in the host countries. This report analyzes the claims of

60

Nonlinear Energy Transfer Between Wind Waves  

Science Journals Connector (OSTI)

A computational scheme for calculating transfer functions is prepared, which gives much improved numerical stability and smoothness compared with previous studies. Besides, a detailed analysis is made of the kernel function, in which the essence ...

Akira Masuda

1980-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "linear energy transfer" 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

Definition: Displacement Transfer Zone | Open Energy Information  

Open Energy Info (EERE)

Definition Definition Edit with form History Facebook icon Twitter icon » Definition: Displacement Transfer Zone Jump to: navigation, search Dictionary.png Displacement Transfer Zone Displacement transfer zones facilitate the transfer of strain between normal and strike-slip faults. Intersections between strike-slip faults in the Walker Lane and N- to NNE-striking normal faults commonly host geothermal systems, focused along the normal faults proximal to their dilational intersections with nearby strike-slip faults.[2] View on Wikipedia Wikipedia Definition References ↑ James E. Faulds,Nicholas H. Hinz,Mark F. Coolbaugh,Patricia H. Cashman,Christopher Kratt,Gregory Dering,Joel Edwards,Brett Mayhew,Holly McLachlan. 2011. Assessment of Favorable Structural Settings of Geothermal

62

Energy Technology Transfer for Industry Through the Texas Energy Extension Service  

E-Print Network [OSTI]

ENERGY TECHNOLOGY TRANSFER FOR INDUSTRY THROUGH THE TEXAS ENERGY EXTENSION SERVICE Stephen Riter Texas Energy Extension Service. Texas A&M University College Station, Texas ABSTRACT The Texas Energy Extension Service (EES) is one of ten...

Riter, S.

1979-01-01T23:59:59.000Z

63

Incoherent Energy Transfer within Light-harvesting Complexes  

E-Print Network [OSTI]

Rate equations are used to model spectroscopic observation of incoherent energy transfer in light-harvesting antenna systems based upon known structures. A two-parameter two-dimensional model is proposed. The transfer rates obtained, by matching the fluorescent decay, are self-consistent within our model.

Juhi-Lian Julian Ting

1999-04-24T23:59:59.000Z

64

MHK Technologies/Ocean Current Linear Turbine | Open Energy Information  

Open Energy Info (EERE)

Linear Turbine Linear Turbine < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Ocean Current Linear Turbine.jpg Technology Profile Primary Organization Ocean Energy Company LLC Technology Type Click here Seabed mooring system Technology Readiness Level Click here TRL 5 6 System Integration and Technology Laboratory Demonstration Technology Description Endless cable loop with parachutes spliced to cable which moored in an ocean current pulls the cable through rotors which in turn power conventional electricity generators See US Patent 3 887 817 Additional patent pending Technology Dimensions Device Testing Date Submitted 30:08.6 << Return to the MHK database homepage Retrieved from "http://en.openei.org/w/index.php?title=MHK_Technologies/Ocean_Current_Linear_Turbine&oldid=681618"

65

Raman-resonant four-wave mixing and energy transfer  

Science Journals Connector (OSTI)

A common assumption that Raman-resonant four-wave mixing does not transfer energy between the light and the Raman medium is shown to be incorrect. The derivation of the correct...

Bobbs, Bradley; Warner, Charles

1990-01-01T23:59:59.000Z

66

Peculiarities in the energy transfer by waves on strained strings  

E-Print Network [OSTI]

Peculiarities in the energy transfer by waves on strained strings Eugene I. Butikov St. Petersburg of elastic potential energy associated with waves in a stretched string is discussed. The influence of nonlinear coupling between transverse and longitudinal waves on the density of energy is investigated

Butikov, Eugene

67

Constrained Codes for Joint Energy and Information Transfer with Receiver Energy  

E-Print Network [OSTI]

networks with implantable devices, challenge the conventional assumption that the energy received fromConstrained Codes for Joint Energy and Information Transfer with Receiver Energy Utilization are simultaneously used both for information transmission and for energy transfer. In order to satisfy

Simeone, Osvaldo

68

UNIDO ICS Portal for Technology Transfer | Open Energy Information  

Open Energy Info (EERE)

UNIDO ICS Portal for Technology Transfer UNIDO ICS Portal for Technology Transfer Jump to: navigation, search Tool Summary Name: UNIDO ICS Portal for Technology Transfer Agency/Company /Organization: United Nations Industrial Development Organization Sector: Energy Topics: Technology characterizations Resource Type: Dataset Website: portal.ics.trieste.it/Portal/Default.aspx References: UNIDO ICS Portal for Technology Transfer[1] This article is a stub. You can help OpenEI by expanding it. References ↑ "UNIDO ICS Portal for Technology Transfer" Retrieved from "http://en.openei.org/w/index.php?title=UNIDO_ICS_Portal_for_Technology_Transfer&oldid=329335" Categories: Tools Stubs What links here Related changes Special pages Printable version Permanent link Browse properties 429 Throttled (bot load)

69

NETL Inventions Earn 2009 Technology Transfer Awards | Department of Energy  

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

Inventions Earn 2009 Technology Transfer Awards Inventions Earn 2009 Technology Transfer Awards NETL Inventions Earn 2009 Technology Transfer Awards February 13, 2009 - 12:00pm Addthis Washington, DC -- Two technologies developed by researchers at the Office of Fossil Energy's National Energy Technology Laboratory (NETL) have earned 2009 Excellence in Technology Transfer Awards from the Federal Laboratory Consortium for Technology Transfer (FLC). Both technologies enable the cleaner use of coal for electricity production and have been licensed to the private sector for commercial development. The awards will be formally presented at the annual FLC national meeting to be held May 4-7, 2009, in Charlotte, N.C. The national awards are given for outstanding work commercializing new and innovative technologies developed

70

NREL: Technology Transfer - Energy Innovation Portal  

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

Energy Innovation Portal Energy Innovation Portal Get the EERE Energy Innovation Portal widget and many other great free widgets at Widgetbox! Not seeing a widget? (More info) NREL developed and manages the Energy Innovation Portal for the U.S. Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE). The portal provides streamlined searching and browsing of patents, patent applications, and marketing summaries for clean energy technologies available for licensing from DOE laboratories and participating research institutions. Visit the EERE Energy Innovation Portal. For more information about NREL's involvement with the portal, read NREL Helps DOE Promote Cutting-Edge Technology. Contact If you have any questions about the portal, contact Matthew Ringer,

71

Department of Energy Announces Technology Transfer Coordinator | Department  

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

Technology Transfer Coordinator Technology Transfer Coordinator Department of Energy Announces Technology Transfer Coordinator February 23, 2010 - 12:00am Addthis Washington, D.C. - U.S. Department of Enery Secretary Steven Chu announced today that Dr. Karina Edmonds will join the Department of Energy as its new Technology Transfer Coordinator. Dr. Edmonds will be responsible for working with the Department's National Laboratories to accelerate the process of moving discoveries from the laboratory to the private sector, ensuring that America's scientific leadership translates into new, high-paying jobs for America's families. Dr. Edmonds is scheduled to join the Department starting in April 2010. "I am pleased to have Karina join our team at the Department of Energy," said Secretary Chu. "Having Karina oversee a coordinated, strategic

72

Energy Department Completes Salt Coolant Material Transfer to Czech  

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

Completes Salt Coolant Material Transfer to Czech Completes Salt Coolant Material Transfer to Czech Republic for Advanced Reactor Research Energy Department Completes Salt Coolant Material Transfer to Czech Republic for Advanced Reactor Research May 20, 2013 - 12:52pm Addthis News Media Contact (202) 586-4940 PRAGUE, CZECH REPUBLIC - The U.S. Department of Energy recently joined with the U.S. Embassy in Prague and the Czech Republic's Ministry of Industry and Trade to complete the transfer of 75 kilograms of fluoride salt from the Department's Oak Ridge National Laboratory (ORNL) to the Czech Nuclear Research Institute Řež for experiments at Řež's critical test facility. This partnership builds on a strong history of U.S.-Czech energy collaboration and follows President Obama's speech in Prague in April 2009, where he laid out the importance of international

73

Speeding Up Science Data Transfers Between Department of Energy Facilities  

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

Speeding Up Science Speeding Up Science Data Transfers Between Department of Energy Facilities Speeding Up Science Data Transfers Between Department of Energy Facilities May 16, 2009 As scientists conduct cutting-edge research with ever more sophisticated techniques, instruments, and supercomputers, the data sets that they must move, analyze, and manage are increasing in size to unprecedented levels. The ability to move and share data is essential to scientific collaboration, and in support of this activity network and systems engineers from the Department of Energy's (DOE) Energy Sciences Network (ESnet), National Energy Research Scientific Computing Center (NERSC) and Oak Ridge Leadership Computing Facility (OLCF) are teaming up to optimize wide-area network (WAN) data transfers.

74

New model of calculating the energy transfer efficiency for the spherical theta-pinch device  

E-Print Network [OSTI]

Ion-beam-plasma-interaction plays an important role in the field of Warm Dense Matter (WDM) and Inertial Confinement Fusion (ICF). A spherical theta pinch is proposed to act as a plasma target in various applications including a plasma stripper cell. One key parameter for such applications is the free electron density. A linear dependency of this density to the amount of energy transferred into the plasma from an energy storage was found by C. Teske. Since the amount of stored energy is known, the energy transfer efficiency is a reliable parameter for the design of a spherical theta pinch device. The traditional two models of energy transfer efficiency are based on assumptions which comprise the risk of systematical errors. To obtain precise results, this paper proposes a new model without the necessity of any assumption to calculate the energy transfer efficiency for an inductively coupled plasma device. Further, a comparison of these three different models is given at a fixed operation voltage for the full ...

Xu, G; Loisch, G; Xiao, G; Jacoby, J; Weyrich, K; Li, Y; Zhao, Y

2015-01-01T23:59:59.000Z

75

Resonant Energy Transfer of Triplet Excitons from Pentacene to PbSe Nanocrystals  

E-Print Network [OSTI]

The efficient transfer of energy between organic and inorganic semiconductors is a widely sought after property, but has to date been limited to the transfer of spin singlet excitons. Here we report efficient resonant-energy transfer of molecular...

Tabachnyk, Maxim; Ehrler, Bruno; Gélinas, Simon; Böhm, Marcus L.; Walker, Brian J.; Musselman, Kevin P.; Greenham, Neil C.; Friend, Richard H.; Rao, Akshay

2014-10-05T23:59:59.000Z

76

Experimental evidence of accelerated energy transfer in turbulence  

Science Journals Connector (OSTI)

We investigate the vorticity dynamics in a turbulent vortex using scattering of acoustic waves. Two ultrasonic beams are adjusted to probe simultaneously two spatial scales in a given volume of the flow, thus allowing a dual channel recording of the dynamics of coherent vorticity structures. Our results show that this allows one to measure the average energy transfer time between different spatial length scales, and that such transfer goes faster at smaller scales.

R. Labbé; C. Baudet; G. Bustamante

2007-01-19T23:59:59.000Z

77

Excitation energy transfer: Study with non-Markovian dynamics  

SciTech Connect (OSTI)

In this paper, we investigate the non-Markovian dynamics of a model to mimic the excitation energy transfer (EET) between chromophores in photosynthesis systems. The numerical path integral method is used. This method includes the non-Markovian effects of the environmental affects, and it does not need the perturbation approximation in solving the dynamics of systems of interest. It implies that the coherence helps the EET between chromophores through lasting the transfer time rather than enhancing the transfer rate of the EET. In particular, the non-Markovian environment greatly increases the efficiency of the EET in the photosynthesis systems.

Liang Xianting [Department of Physics and Institute of Modern Physics, Ningbo University, Ningbo 315211 (China)

2010-11-15T23:59:59.000Z

78

Ultrafast Intramolecular Energy Transfer in Water  

Science Journals Connector (OSTI)

An unexpectedly fast (0.2 ps) intramolecular energy conversion occurring in H2O molecules has been revealed using frequency-resolved mid-infrared pump-probe spectroscopy in the spectral region of the OH-stretchin...

Dan Cringus; Thomas 1. C. Jansen; Maxim S. Pshenichnikov…

2007-01-01T23:59:59.000Z

79

Linear Polarization of Low-Energy-Electron Bremsstrahlung  

Science Journals Connector (OSTI)

The linear polarization of bremsstrahlung from thin targets (? 50 ?g/cm2) of Al, Cu, Ag, and Au was measured for incident electron energies of 50, 75, and 100 keV. The polarization was measured as a function of photon energy at four emission angles (?=22.5?,45?,90?, and 135?). Data presented were obtained with a Compton polarimeter having a large asymmetry ratio (from 35 to 150) and high resolution. The results have been found to be in general agreement with the predictions of various bremsstrahlung calculations.

Robert W. Kuckuck and Paul J. Ebert

1973-02-01T23:59:59.000Z

80

Autoresonance energy transfer versus localization in weakly coupled oscillators  

E-Print Network [OSTI]

In this paper we investigate the distribution of energy between weakly coupled linear and nonlinear oscillators in a two-degree-of-freedom (2D) system. Two classes of problems are studied analytically and numerically: (1) a periodic force with constant frequency is applied to the nonlinear (Duffing) oscillator with slowly time-decreasing linear stiffness; (2) the time-independent nonlinear oscillator is excited by a force with slowly increasing frequency. In both cases, stiffness of the attached linear oscillator and linear coupling remain constant, and the system is initially engaged in resonance. This paper demonstrates that in the systems of the first type autoresonance (AR) occurs in both oscillators while in systems of the second type AR occurs only in the excited nonlinear oscillator but the coupled linear oscillator exhibits small bounded oscillations. Considering slow detuning, we obtain explicit asymptotic approximations for the amplitudes and the phases of oscillations close to exact (numerical) results.

Agnessa Kovaleva; Leonid Manevitch

2014-10-22T23:59:59.000Z

Note: This page contains sample records for the topic "linear energy transfer" 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

Sites Pending Transfer to LM | Department of Energy  

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

Sites Pending Transfer to LM Sites Pending Transfer to LM Sites Pending Transfer to LM Sites Pending Transfer to Legacy Management Note: The following list is subject to change without prior notice and will be updated periodically. California Energy Technology Engineering Center Site Colorado Cañon City Site Durita Disposal Site Uravan Disposal Site Connecticut Combustion Engineering Site Indiana Joslyn Manufacturing & Supply Company Site Iowa Iowa Army Ammunition Plant Site Kentucky Paducah Site Massachusetts Attleboro Site Maryland W.R. Grace Co. Site Missouri Latty Avenue Properties Site St. Louis Airport Site St. Louis Airport Vicinity Properties Site St. Louis Downtown Site New Jersey E.I. Du Pont Site Maywood Site Middlesex Sampling Plant Site New Mexico Ambrosia Lake West Disposal Site Church Rock Disposal Site

82

Tech Transfer Webinar: Energy Absorbing Materials  

SciTech Connect (OSTI)

A new material has been designed and manufactured at LLNL that can absorb mechanical energy--a cushion--while also providing protection against sheering. This ordered cellular material is 3D printed using direct ink writing techniques under development at LLNL. It is expected to find utility in application spaces that currently use unordered foams, such as sporting and consumer goods as well as defense and aerospace.

Duoss, Eric

2014-06-17T23:59:59.000Z

83

Tech Transfer Webinar: Energy Absorbing Materials  

ScienceCinema (OSTI)

A new material has been designed and manufactured at LLNL that can absorb mechanical energy--a cushion--while also providing protection against sheering. This ordered cellular material is 3D printed using direct ink writing techniques under development at LLNL. It is expected to find utility in application spaces that currently use unordered foams, such as sporting and consumer goods as well as defense and aerospace.

Duoss, Eric

2014-07-15T23:59:59.000Z

84

Design and Performance of Linear Biomechanical Energy Conversion Devices Penglin Niu, Student Member  

E-Print Network [OSTI]

Design and Performance of Linear Biomechanical Energy Conversion Devices Penglin Niu, Student, energy conversion, synchronous rectifier, voltage tripler, energy harvesting, human power. I investigated motions as energy sources for biomechanical energy conversion [1-7]. Until recently, most efforts

Chapman, Patrick

85

National Lab Technology Transfer Making a Difference | Department of Energy  

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

National Lab Technology Transfer Making a Difference National Lab Technology Transfer Making a Difference National Lab Technology Transfer Making a Difference August 28, 2013 - 11:10am Addthis Incorporation of a new CO2 sorbent into commercial heating, ventilation, and air conditioning (HVAC) systems will save energy and reduce operating costs. HVAC is one of the largest consumers of electric power in the United States, responsible for more than half of the load on the electric grid in many major cities. NETL work has led to a patented CO2 sorbent that has now been licensed commercially. Incorporation of a new CO2 sorbent into commercial heating, ventilation, and air conditioning (HVAC) systems will save energy and reduce operating costs. HVAC is one of the largest consumers of electric power in the United

86

Momentum and Energy Transfer in Wind Generation of Waves  

Science Journals Connector (OSTI)

Complete expressions for wind momentum and energy transfer to wind-generated waves are derived based on a boundary-layer integral method. The airflow and wave measurements as made by Wu et al. (1977, 1979) are used to provide a first-order ...

Chin-Tsau Hsu; Hong-Ye Wu; En-Yun Hsu; Robert L. Street

1982-09-01T23:59:59.000Z

87

Technology_Transfer_Memo.pdf | Department of Energy  

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

TechnologyTransferMemo.pdf TechnologyTransferMemo.pdf TechnologyTransferMemo.pdf More Documents & Publications PolicyStatementonTechnologyTransfer.pdf...

88

Advances in energy-transfer technology  

SciTech Connect (OSTI)

This paper discusses the technology of drying and curing inks, coatings and adhesives which is changing rapidly as converters and manufacturers strive to comply with regulations governing airborne emissions as well as discharge of liquid and solid wastes. Compliance with these regulations will become more difficult in the coming decade as the Clean Air Act's increasingly stringent limitations on emissions of volatile organic compounds are implemented to support the intentions of the Montreal protocol. Many of the customary solvents are being eliminated, and the volume of production for many others will be severely reduced. For some companies, the switch to the new materials means updating or replacing antiquated hot-air drying systems with high-velocity impingement ovens with higher temperature capabilities. Probably the least-expansive alternative to replacing the entire oven is to retrofit the installation with infrared (IR) energy in the form of separate predryers or postheaters or, in some cases, to install auxiliary IR heaters between the hot-air nozzles within the oven.

Terpstra, L. (Glenro, Inc., Paterson, NJ (US))

1992-06-01T23:59:59.000Z

89

Heat transfer between parallel plates: An approach based on the linearized Boltzmann equation for a binary mixture of rigid-sphere gases  

E-Print Network [OSTI]

Heat transfer between parallel plates: An approach based on the linearized Boltzmann equation a concise and particularly accurate solution of the heat-transfer problem for a binary gas mixture confined.1063/1.2511039 I. INTRODUCTION The heat-transfer problem within the context of rarefied gas dynamics has been

Siewert, Charles E.

90

An alternative carotenoid-to-bacteriochlorophyll energy transfer pathway in photosynthetic  

E-Print Network [OSTI]

An alternative carotenoid-to-bacteriochlorophyll energy transfer pathway in photosynthetic light uncovered an alternative pathway of carotenoid-to-BChl energy transfer. In competition with energy transfer November 22, 2001) Blue and green sunlight become available for photosynthetic energy conversion through

van Stokkum, Ivo

91

Light-induced electron transfer vs. energy transfer in molecular thin-film systems  

SciTech Connect (OSTI)

Quenching of fluoranthene (FA) singlets by tetrabromo-o-benzoquinone (TBBQ) and N,N,N',N'-tetramethyl-p-phenylenediamine (TMPD) was studied both in xylene solutions and in spin-cast polystyrene (PS) films. Emphasis was placed on time-resolved fluorescence transients resulting from pulsed excitation. Linear Stern-Volmer plots were obtained for quenching in solution and gave diffusion-controlled rate constants, of 1.45 x 10/sup 10/ M/sup -1/ sec/sup -1/ and 1.53 x 10/sup 10/ M/sup -1/ sec/sup -1/ for TBBQ and TMPD, respectively. TBBQ was found to quench FA singlets in PS over the studied concentration range 12 mM < (TBBQ) < 48 mM, but in its presence FA singlets decayed nonexponentially. The results were interpreted quantitatively in terms of pure Foerster's transfer from FA to TBBQ without diffusion of excitons. The critical transfer radius R/sub 0/ was experimentally determined to be 24.3 A, which is in good agreement with the theoretical value of 23 A calculated from spectral data. Quenching of FA singlets in PS films was found to be independent of FA concentration over a 300 mM to 1200 mM FA concentration range for a constant TBBQ concentration of 24.0 mM. TMPD was only slightly effective as a quencher of FA singlets in PS because it apparently behaves strictly as a contact quencher based on reversible charge transfer. The implications of these results for the design of systems intended to exploit light-induced electron transfer are discussed.

Renschler, C. L.; Faulkner, L. R.

1980-01-01T23:59:59.000Z

92

Thermal regimes in a primary fluid heated by solar energy in a linear collector  

Science Journals Connector (OSTI)

The steady-state heat transfer equation has been solved for the determination of temperature profiles in a diathermic oil flowing through a linear boiler placed on the focal line of cylindrical parabolic solar...

O. Barra; M. Conti; L. Correra; R. Visentin; E. Pugliese Caratelli

93

Linear response of homogeneous nuclear matter with energy density functionals  

E-Print Network [OSTI]

Response functions of infinite nuclear matter with arbitrary isospin asymmetry are studied in the framework of the random phase approximation. The residual interaction is derived from a general nuclear Skyrme energy density functional. Besides the usual central, spin-orbit and tensor terms it could also include other components as new density-dependent terms or three-body terms. Algebraic expressions for the response functions are obtained from the Bethe-Salpeter equation for the particle-hole propagator. Applications to symmetric nuclear matter, pure neutron matter and asymmetric nuclear matter are presented and discussed. Spin-isospin strength functions are analyzed for varying conditions of density, momentum transfer, isospin asymmetry, and temperature for some representative Skyrme functionals. Particular attention is paid to the discussion of instabilities, either real or unphysical, which could manifest in finite nuclei.

Pastore, A; Navarro, J

2014-01-01T23:59:59.000Z

94

Linear response of homogeneous nuclear matter with energy density functionals  

E-Print Network [OSTI]

Response functions of infinite nuclear matter with arbitrary isospin asymmetry are studied in the framework of the random phase approximation. The residual interaction is derived from a general nuclear Skyrme energy density functional. Besides the usual central, spin-orbit and tensor terms it could also include other components as new density-dependent terms or three-body terms. Algebraic expressions for the response functions are obtained from the Bethe-Salpeter equation for the particle-hole propagator. Applications to symmetric nuclear matter, pure neutron matter and asymmetric nuclear matter are presented and discussed. Spin-isospin strength functions are analyzed for varying conditions of density, momentum transfer, isospin asymmetry, and temperature for some representative Skyrme functionals. Particular attention is paid to the discussion of instabilities, either real or unphysical, which could manifest in finite nuclei.

A. Pastore; D. Davesne; J. Navarro

2014-12-07T23:59:59.000Z

95

Efficient Light Harvesting and Energy Transfer in a Red Phosphorescent Iridium Dendrimer  

Science Journals Connector (OSTI)

Efficient Light Harvesting and Energy Transfer in a Red Phosphorescent Iridium Dendrimer ... The harvesting photons on the dendrons followed by efficient energy transfer to the iridium center resulted in high red emissions at 600 nm by metal-to-ligand charge transfer. ... On the basis of the fluorescence quenching rate constants of the dendrons, the energy-transfer efficiencies for Ir-G1, Ir-G2, and Ir-G3 were quantitative, and their energy-transfer mechanism was a Förster-type energy transfer. ...

Yang-Jin Cho; Seong Ahn Hong; Ho-Jin Son; Won-Sik Han; Dae Won Cho; Sang Ook Kang

2014-11-24T23:59:59.000Z

96

Fluorescence Resonance Energy Transfer Reveals a Binding Site of a Photosensitizer for Photodynamic Therapy  

Science Journals Connector (OSTI)

...D., Kenney M. E. New phthalocyanine photosensitizers...Stryer L. Fluorescence energy transfer as a spectroscopic...39-40, Marcel Dekker Inc. New York 1993. 20 Clegg R. M. Fluorescence resonance energy transfer. Curr. Opin...

Rachel L. Morris; Kashif Azizuddin; Minh Lam; Jeffrey Berlin; Anna-Liisa Nieminen; Malcolm E. Kenney; Anna C. S. Samia; Clemens Burda; and Nancy L. Oleinick

2003-09-01T23:59:59.000Z

97

Policy_Statement_on_Technology_Transfer.pdf | Department of Energy  

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

PolicyStatementonTechnologyTransfer.pdf PolicyStatementonTechnologyTransfer.pdf PolicyStatementonTechnologyTransfer.pdf More Documents & Publications...

98

State-to-state dynamics of molecular energy transfer  

SciTech Connect (OSTI)

The goal of this research program is to elucidate the elementary dynamical mechanisms of vibrational and rotational energy transfer between molecules, at a quantum-state resolved level of detail. Molecular beam techniques are used to isolate individual molecular collisions, and to control the kinetic energy of collision. Lasers are used both to prepare specific quantum states prior to collision by stimulated-emission pumping (SEP), and to measure the distribution of quantum states in the collision products by laser-induced fluorescence (LIF). The results are interpreted in terms of dynamical models, which may be cast in a classical, semiclassical or quantum mechanical framework, as appropriate.

Gentry, W.R.; Giese, C.F. [Univ. of Minnesota, Minneapolis (United States)

1993-12-01T23:59:59.000Z

99

Quantum efficiency of energy transfer in non-covalent carbon nanotube/porphyrin compounds  

E-Print Network [OSTI]

Quantum efficiency of energy transfer in non-covalent carbon nanotube/porphyrin compounds C and the dynamics of the energy transfer. Photoluminescence (PL) experiments conducted on carbon nanotube) Abstract We report on the quantum yield of excitation energy transfer in non-covalently bound nan- otube

Paris-Sud XI, Université de

100

Local Field Effects in the Energy Transfer between a Chromophore and a Carbon Nanotube : a Single  

E-Print Network [OSTI]

Local Field Effects in the Energy Transfer between a Chromophore and a Carbon Nanotube : a Single excitation of the nanotube and from energy transfer from the porphyrin. Polarization diagrams show that both porphyrin / carbon nanotube compounds that display efficient energy transfer : absorption in the porphyrin

Paris-Sud XI, Université de

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


101

Exciton Energy Transfer in Pairs of Single-Walled Carbon Nanotubes  

E-Print Network [OSTI]

Exciton Energy Transfer in Pairs of Single-Walled Carbon Nanotubes Huihong Qian, Carsten Georgi­3 At nanoscale distances, energy transfer from large to small band gap nanotubes is expected to occur to be quenched in bundles.7­10 Very recently, resonant exciton energy transfer between semiconducting nanotubes

Novotny, Lukas

102

Disturbance of Energy Transfer as a Factor Promoting Changes in the Biologic Behavior of Tumor Cells  

Science Journals Connector (OSTI)

...solution of Janus green B in the path of...that the transfer of energy produced during the...solution of Janus green B in the path of...that the transfer of energy produced during the...development of pathologic energy transfer. INTRODUCTION...of the dye Janus green B (JgB) on Amytal-induced...

Andor Udvardy and Roland Holland

1969-08-01T23:59:59.000Z

103

An Improved Bioluminescence Resonance Energy Transfer Strategy for Imaging Intracellular Events in Single Cells and Living Subjects  

Science Journals Connector (OSTI)

...Bioluminescence resonance energy transfer|Renilla luciferase|Green fluorescent protein...species involved in energy transfer to Renilla green fluorescent protein...Blotting, Western Energy Transfer Fibrosarcoma...metabolism pathology Green Fluorescent Proteins...

Abhijit De; Andreas Markus Loening; and Sanjiv Sam Gambhir

2007-08-01T23:59:59.000Z

104

An Improved Bioluminescence Resonance Energy Transfer Strategy for Imaging Intracellular Events in Single Cells and Living Subjects  

Science Journals Connector (OSTI)

...An Improved Bioluminescence Resonance Energy Transfer Strategy for Imaging Intracellular...org/ ). Bioluminescence resonance energy transfer (BRET) is currently used for...7175-83] mTOR|Bioluminescence resonance energy transfer|Renilla luciferase|Green...

Abhijit De; Andreas Markus Loening; Sanjiv Sam Gambhir

2007-08-01T23:59:59.000Z

105

High-Energy Behaviour of the Particle Spectrum Created by a Linearly Expanding Universe  

Science Journals Connector (OSTI)

......research-article Articles High-Energy Behaviour of the Particle Spectrum...Cuidad Universitaria, Buenos Aires. Argentina. It is proved that the number and energy densities of the high-energy particles created by a linearly expanding......

Mario Castagnino

1981-12-01T23:59:59.000Z

106

Energy Transfer on Demand: Photoswitch-Directed Behavior of Metal–Porphyrin Frameworks  

Science Journals Connector (OSTI)

Energy Transfer on Demand: Photoswitch-Directed Behavior of Metal–Porphyrin Frameworks ... were used to est. the ligand strain energies in the and all other topol. ...

Derek E. Williams; Joseph A. Rietman; Josef M. Maier; Rui Tan; Andrew B. Greytak; Mark D. Smith; Jeanette A. Krause; Natalia B. Shustova

2014-08-12T23:59:59.000Z

107

Non-uniform heat generation effect on heat transfer of a non-Newtonian power-law fluid over a non-linearly stretching sheet  

Science Journals Connector (OSTI)

The effects of non-uniform heat generation/absorption and viscous dissipation on heat transfer of a non-Newtonian power-law fluid on a non-linearly stretching surface have ... law index parameter, the Prandtl num...

Mostafa A. A. Mahmoud; Ahmed M. Megahed

2012-06-01T23:59:59.000Z

108

Linear Perturbation constraints on Multi-coupled Dark Energy  

E-Print Network [OSTI]

The Multi-coupled Dark Energy (McDE) scenario has been recently proposed as a specific example of a cosmological model characterized by a non-standard physics of the dark sector of the universe that nevertheless gives an expansion history which does not significantly differ from the one of the standard $\\Lambda $CDM model. In this work, we present the first constraints on the McDE scenario obtained by comparing the predicted evolution of linear density perturbations with a large compilation of recent data sets for the growth rate $f\\sigma_{8}$, including 6dFGS, LRG, BOSS, WiggleZ and VIPERS. Confirming qualitative expectations, growth rate data provide much tighter bounds on the model parameters as compared to the extremely loose bounds that can be obtained when only the background expansion history is considered. In particular, the $95\\%$ confidence level on the coupling strength $|\\beta |$ is reduced from $|\\beta |\\leq 83$ (background constraints only) to $|\\beta |\\leq 0.88$ (background and linear perturbation constraints). We also investigate how these constraints further improve when using data from future wide-field surveys such as supernova data from LSST and growth rate data from Euclid-type missions. In this case the $95\\%$ confidence level on the coupling further reduce to $|\\beta |\\leq 0.85$. Such constraints are in any case still consistent with a scalar fifth-force of gravitational strength, and we foresee that tighter bounds might be possibly obtained from the investigation of nonlinear structure formation in McDE cosmologies.[Abridged

Arpine Piloyan; Valerio Marra; Marco Baldi; Luca Amendola

2014-01-12T23:59:59.000Z

109

Detecting Plasmon Resonance Energy Transfer with Differential Interference Contrast Microscopy  

SciTech Connect (OSTI)

Gold nanoparticles are ideal probes for studying intracellular environments and energy transfer mechanisms due to their plasmonic properties. Plasmon resonance energy transfer (PRET) relies on a plasmonic nanoparticle to donate energy to a nearby resonant acceptor molecule, a process which can be observed due to the plasmonic quenching of the donor nanoparticle. In this study, a gold nanosphere was used as the plasmonic donor, while the metalloprotein cytochrome c was used as the acceptor molecule. Differential interference contrast (DIC) microscopy allows for simultaneous monitoring of complex environments and noble metal nanoparticles in real time. Using DIC and specially designed microfluidic channels, we were able to monitor PRET at the single gold particle level and observe the reversibility of PRET upon the introduction of phosphate-buffered saline to the channel. In an additional experiment, single gold particles were internalized by HeLa cells and were subsequently observed undergoing PRET as the cell hosts underwent morphological changes brought about by ethanol-induced apoptosis.

Augspurger, Ashley E. [Ames Laboratory; Stender, Anthony S. [Ames Laboratory; Han, Rui [Ames Laboratory; Fang, Ning [Ames Laboratory

2013-12-30T23:59:59.000Z

110

Low-energy Transfers A LET is shown from the L1  

E-Print Network [OSTI]

-Maneuver Transfer Low-energy transfers exist between halo orbits that can be used to recon- figure a constellation / " +0123 Low-energy Transfers-agency collaboration to imple- ment a single constellation to provide for the needs of any lunar asset. Conclusions

Born, George

111

Knowledge Capture and Transfer Program | Department of Energy  

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

Knowledge Capture and Transfer Program Knowledge Capture and Transfer Program The Office of Learning and Workforce Development is working with Heads of Departmental Elements, DOE...

112

Energy transfers in internal tide generation, propagation and dissipation in the deep ocean  

Science Journals Connector (OSTI)

The energy transfers associated with internal tide (IT) generation by a semi-diurnal surface tidal wave impinging on a supercritical meridionally uniform deep ocean ridge on the f-plane, and subsequent IT-propagation are analysed using the Boussinesq, free-surface, terrain-following ocean model Symphonie. The energy diagnostics are explicitly based on the numerical formulation of the governing equations, permitting a globally conservative, high-precision analysis of all physical and numerical/artificial energy transfers in a sub-domain with open lateral boundaries. The net primary energy balances are quantified using a moving average of length two tidal periods in a simplified control simulation using a single time-step, minimal diffusion, and a no-slip sea floor. This provides the basis for analysis of enhanced vertical and horizontal diffusion and a free-slip bottom boundary condition. After a four tidal period spin-up, the tidally averaged (net) primary energy balance in the generation region, extending ±20 km from the ridge crest, shows that the surface tidal wave loses approximately C = 720 W/m or 0.3% of the mean surface tidal energy flux (2.506 × 105 W/m) in traversing the ridge. This corresponds mainly to the barotropic-to-baroclinic energy conversion due to stratified flow interaction with sloping topography. Combined with a normalised net advective flux of baroclinic potential energy of 0.9 × C this causes a net local baroclinic potential energy gain of 0.72 × C and a conversion into baroclinic kinetic energy through the baroclinic buoyancy term of 1.18 × C. Tidally averaged, about 1.14 × C is radiated into the abyssal ocean through the total baroclinic flux of internal pressure associated with the IT- and background density field. This total baroclinic pressure flux is therefore not only determined by the classic linear surface-to-internal tide conversion, but also by the net advection of baroclinic (background) potential energy, indicating the importance of local processes other than linear IT-motion. In the propagation region (PR), integrated over the areas between 20 and 40 km from the ridge crest, the barotropic and baroclinic tide are decoupled. The net incoming total baroclinic pressure flux is balanced by local potential energy gain and outward baroclinic flux of potential energy associated with the total baroclinic density. The primary net energy balances are robust to changes in the vertical diffusion coefficient, whereas relatively weak horizontal diffusion significantly reduces the outward IT energy flux. Diapycnal mixing due to vertical diffusion causes an available potential energy loss of about 1% of the total domain-averaged potential energy gain, which matches k m - 1 k m ? 0 K V N 2 to within 0.5%, for km linearly distributed grid-levels and constant background density ?0, vertical diffusivity (KV) and buoyancy frequency (N).

J.W. Floor; F. Auclair; P. Marsaleix

2011-01-01T23:59:59.000Z

113

Minimizing the Energy Cost of Throughput in a Linear Pipeline by Opportunistic Time Borrowing  

E-Print Network [OSTI]

Minimizing the Energy Cost of Throughput in a Linear Pipeline by Opportunistic Time Borrowing a technique to optimize the energy-delay product of a synchronous linear pipeline circuit with dynamic error and clock frequency of the design by exploiting slacks that are present in various stages of the pipeline

Pedram, Massoud

114

Secretarial Policy Statement on Technology Transfer at Department of Energy Facilities  

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

Secretarial Policy Statement on Secretarial Policy Statement on Technology Transfer at Department of Energy Facilities Introduction This Policy Statement is designed to help guide and strengthen the Department of Energy's technology transfer efforts and to heighten awareness of the importance of technology transfer activities throughout DOE. For purposes of this document, the term "technology transfer" refers to the process by which knowledge, intellectual property or capabilities developed at the Department of Energy's National Laboratories, single- purpose research facilities, and other facilities ("Facilities") are transferred to any other entity, including private industry, academia, state and local governments, or other government entities to meet public and private needs. The Policy Statement follows upon

115

Mechanism of nonresonant energy transfer between ions in SrF2:Er3+  

Science Journals Connector (OSTI)

The temperature and magnetic field dependence of the nonresonant energy transfer rate is measured for two ions that exist as a well-defined dimer in SrF2:Er3+. The two ions are crystallographically inequivalent, so the energy transfer can be observed directly and unique transfer rates are obtained without modeling the radial dependence of energy transfer. The transfer is shown to result from a single-phonon-assisted process at low temperatures and a two-phonon-assisted resonant or Orbach process at higher temperatures. No evidence is found for nonresonant two-phonon processes.

J. R. Wietfeldt; D. S. Moore; B. M. Tissue; J. C. Wright

1986-04-15T23:59:59.000Z

116

EA-1338: Transfer of the Department of Energy Grand Junction Office to  

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

8: Transfer of the Department of Energy Grand Junction Office 8: Transfer of the Department of Energy Grand Junction Office to Non-DOE Ownership, Grand Junction, Colorado EA-1338: Transfer of the Department of Energy Grand Junction Office to Non-DOE Ownership, Grand Junction, Colorado SUMMARY This EA evaluates the environmental impacts for the proposed transfer of real and personal property at the U.S. Department of Energy's Grand Junction Office to non-DOE ownership. PUBLIC COMMENT OPPORTUNITIES None available at this time. DOCUMENTS AVAILABLE FOR DOWNLOAD April 25, 2000 EA-1338: Finding of No Significant Impact Transfer of the Department of Energy Grand Junction Office to Non-DOE Ownership April 25, 2000 EA-1338: Final Environmental Assessment Transfer of the Department of Energy Grand Junction Office to Non-DOE Ownership

117

Influence of circumferential solar heat flux distribution on the heat transfer coefficients of linear Fresnel collector absorber tubes  

Science Journals Connector (OSTI)

Abstract The absorber tubes of solar thermal collectors have enormous influence on the performance of the solar collector systems. In this numerical study, the influence of circumferential uniform and non-uniform solar heat flux distributions on the internal and overall heat transfer coefficients of the absorber tubes of a linear Fresnel solar collector was investigated. A 3D steady-state numerical simulation was implemented based on ANSYS Fluent code version 14. The non-uniform solar heat flux distribution was modelled as a sinusoidal function of the concentrated solar heat flux incident on the circumference of the absorber tube. The k–? model was employed to simulate the turbulent flow of the heat transfer fluid through the absorber tube. The tube-wall heat conduction and the convective and irradiative heat losses to the surroundings were also considered in the model. The average internal and overall heat transfer coefficients were determined for the sinusoidal circumferential non-uniform heat flux distribution span of 160°, 180°, 200° and 240°, and the 360° span of circumferential uniform heat flux for 10 m long absorber tubes of different inner diameters and wall thicknesses with thermal conductivity of 16.27 W/mK between the Reynolds number range of 4000 and 210,000 based on the inlet temperature. The results showed that the average internal heat transfer coefficients for the 360° span of circumferential uniform heat flux with different concentration ratios on absorber tubes of the same inner diameters, wall thicknesses and thermal conductivity were approximately the same, but the average overall heat transfer coefficient increased with the increase in the concentration ratios of the uniform heat flux incident on the tubes. Also, the average internal heat transfer coefficient for the absorber tube with a 360° span of uniform heat flux was approximately the same as that of the absorber tubes with the sinusoidal circumferential non-uniform heat flux span of 160°, 180°, 200° and 240° for the heat flux of the same concentration ratio, but the average overall heat transfer coefficient for the uniform heat flux case was higher than that of the non-uniform flux distributions. The average axial local internal heat transfer coefficient for the 360° span of uniform heat flux distribution on a 10 m long absorber tube was slightly higher than that of the 160°, 200° and 240° span of non-uniform flux distributions at the Reynolds number of 4 000. The average internal and overall heat transfer coefficients for four absorber tubes of different inner diameters and wall thicknesses and thermal conductivity of 16.27 W/mK with 200° span of circumferential non-uniform flux were found to increase with the decrease in the inner-wall diameter of the absorber tubes. The numerical results showed good agreement with the Nusselt number experimental correlations for fully developed turbulent flow available in the literature.

Izuchukwu F. Okafor; Jaco Dirker; Josua P. Meyer

2014-01-01T23:59:59.000Z

118

A novel linear generator for wave energy applications.  

E-Print Network [OSTI]

??With the increasing effort to identify alternative methods of energy generation, extraction of ocean energy has gathered a large interest. Research and industry have begun… (more)

Ernst, Steven George

2009-01-01T23:59:59.000Z

119

Effects of optical interference and energy transfer on exciton diffusion length measurements in organic semiconductors  

E-Print Network [OSTI]

believe that device efficiencies must ex- ceed 10% to enter the market as a viable source of energy.6Effects of optical interference and energy transfer on exciton diffusion length measurements of optical interference and of energy transfer to the quencher. When there is modest contrast

McGehee, Michael

120

Nonequilibrium Statistics of a Reduced Model for Energy Transfer in Waves  

E-Print Network [OSTI]

Nonequilibrium Statistics of a Reduced Model for Energy Transfer in Waves R. E. LEE DEVILLE Courant, with the subsequent dynamics transferring the energy to longer scales. The main dissipation mechanism is wave breaking, which usually acts on much longer (gravity) waves that intermittently remove energy from the wave system

Milewski, Paul

Note: This page contains sample records for the topic "linear energy transfer" 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

On the Nonlinear Transfer of Energy in the Peak of a Gravity-Wave Spectrum. II  

Science Journals Connector (OSTI)

...Nonlinear Transfer of Energy in the Peak of a Gravity-Wave Spectrum. II M. J...nonlinear transfer of energy within a continuous spectrum of water waves. The spectrum is assumed...narrow, that is, the wave energy is initially concentrated...

1976-01-01T23:59:59.000Z

122

Disturbance of Energy Transfer as a Factor Promoting Changes in the Biologic Behavior of Tumor Cells  

Science Journals Connector (OSTI)

...of a pathologic intracellular energy transfer. It was thus necessary...RESEARCH VOL. 29 Disturbance of Energy Transfer in Tumor Cells to prove...have an absolute requirement of energy; (c) to find out whether...diminish the thermal effects. The mix- ture was then intraperitoneally...

Andor Udvardy and Roland Holland

1969-08-01T23:59:59.000Z

123

Experimental verification of Förster energy transfer between semiconductor quantum dots  

Science Journals Connector (OSTI)

In recent years, energy transfer (ET) using semiconductor quantum dots (QDs) is getting increased attention. However, it has been postulated that ET between QDs is based on the Förster model, which is a well-established model of ET mechanism in organic dye systems, without verification. In this work, we have investigated ET mechanism in colloidal CdS QDs measuring photoluminescence dynamics of a bilayer structure consisting of differently sized CdS QDs. In the bilayer structure, the distance between the monolayer of donor QDs and that of acceptor QDs was controlled precisely by a spacer layer that is layer-by-layer assembly of polyelectrolytes. The bilayer structure enabled us to systematically measure the spacer-layer dependence of photoluminescence dynamics reflecting the ET process between QDs. It is demonstrated that ET between the donor and acceptor QDs is conclusively dominated by the dipole-dipole interaction, which verifies the appropriateness of the Förster model.

DaeGwi Kim; Shinya Okahara; Masaaki Nakayama; YongGu Shim

2008-10-02T23:59:59.000Z

124

Calibration of fluorescence resonance energy transfer in microscopy  

DOE Patents [OSTI]

Imaging hardware, software, calibrants, and methods are provided to visualize and quantitate the amount of Fluorescence Resonance Energy Transfer (FRET) occurring between donor and acceptor molecules in epifluorescence microscopy. The MicroFRET system compensates for overlap among donor, acceptor, and FRET spectra using well characterized fluorescent beads as standards in conjunction with radiometrically calibrated image processing techniques. The MicroFRET system also provides precisely machined epifluorescence cubes to maintain proper image registration as the sample is illuminated at the donor and acceptor excitation wavelengths. Algorithms are described that pseudocolor the image to display pixels exhibiting radiometrically-corrected fluorescence emission from the donor (blue), the acceptor (green) and FRET (red). The method is demonstrated on samples exhibiting FRET between genetically engineered derivatives of the Green Fluorescent Protein (GFP) bound to the surface of Ni chelating beads by histidine-tags.

Youvan, Douglas C. (San Jose, CA); Silva, Christopher M. (Sunnyvale, CA); Bylina, Edward J. (San Jose, CA); Coleman, William J. (Moutain View, CA); Dilworth, Michael R. (Santa Cruz, CA); Yang, Mary M. (San Jose, CA)

2002-09-24T23:59:59.000Z

125

Energy transfer up-conversion in Tm3+ -doped silica fibre  

E-Print Network [OSTI]

1 Energy transfer up-conversion in Tm3+ - doped silica fibre D. A. Simpson, G. W. Baxter and S. F responsible for the up-conversion: excited state absorption and energy transfer up-conversion. The decay equations, the energy transfer up- conversion process (3 F4,3 F43 H4,3 H6) is established at Tm2O3

Paris-Sud XI, Université de

126

Picosecond Energy Transfer Kinetics between Different Pigment Pools in Chlorosomes from the Green Bacterium Chloroflexus Aurantiacus  

Science Journals Connector (OSTI)

Chloroflexus aurantiacus a thermophilic green bacterium, contains at least four different bacteriochlorophyll ... coupled in a specific way to optimize the energy transfer from the main antenna, ...

Kai Griebenow; Marc G. Müller…

1990-01-01T23:59:59.000Z

127

Probing Vibrational Energy Transfer in DNA Nucleobases with Mid-UV Four-Wave Mixing Spectroscopies  

Science Journals Connector (OSTI)

Heterodyne-detected four-wave mixing spectroscopies are used to investigate vibrational energy transfer in various DNA nucleobases. Unique insights into the solute-solvent couplings...

West, Brantley A; Womick, Jordan M; Moran, Andrew M

128

Energy Transfer and Light Tolerance Studies in a Fluorescent Tandem Phycobiliprotein Conjugate  

Science Journals Connector (OSTI)

Light harvesting and energy transfer between allophycocyanin (APC) and a tandem conjugate dye was investigated using single-molecule recrossings in the probe volume. By comparing...

Tian, Yu; Pappas, Dimitri

2011-01-01T23:59:59.000Z

129

Idaho Transferring a Water Right Webpage | Open Energy Information  

Open Energy Info (EERE)

Idaho Transferring a Water Right Webpage Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Idaho Transferring a Water Right Webpage Abstract This webpage...

130

Global Energy Transfer - Feed-in Tariffs for Developing Countries | Open  

Open Energy Info (EERE)

Energy Transfer - Feed-in Tariffs for Developing Countries Energy Transfer - Feed-in Tariffs for Developing Countries Jump to: navigation, search Tool Summary Name: Global Energy Transfer - Feed-in Tariffs for Developing Countries Agency/Company /Organization: Deutsche Bank Group Sector: Energy Focus Area: Renewable Energy Topics: Finance Resource Type: Publications Website: www.dbcca.com/dbcca/EN/investment-research/investment_research_2347.js References: Get FiT Program[1] This report provides information on best practices for adapting the design of feed-in tariffs in developing countries. Chapters The challenge of renewable energy in the developing world: A project level perspective.............................................................. 11 The GET FiT Solution...................................................................

131

Efficient near-field wireless energy transfer using adiabatic system variations  

DOE Patents [OSTI]

Disclosed is a method for transferring energy wirelessly including transferring energy wirelessly from a first resonator structure to an intermediate resonator structure, wherein the coupling rate between the first resonator structure and the intermediate resonator structure is .kappa..sub.1B, transferring energy wirelessly from the intermediate resonator structure to a second resonator structure, wherein the coupling rate between the intermediate resonator structure and the second resonator structure is .kappa..sub.B2, and during the wireless energy transfers, adjusting at least one of the coupling rates .kappa..sub.1B and .kappa..sub.B2 to reduce energy accumulation in the intermediate resonator structure and improve wireless energy transfer from the first resonator structure to the second resonator structure through the intermediate resonator structure.

Hamam, Rafif E; Karalis, Aristeidis; Joannopoulos, John D; Soljacic, Marin

2014-09-16T23:59:59.000Z

132

Photoluminescent Energy Transfer from Poly(phenyleneethynylene)s to Near-Infrared Emitting Fluorophores  

E-Print Network [OSTI]

Photoluminescent energy transfer was investigated in conjugated polymer-fluorophore blended thin films. A pentiptycene-containing poly(phenyleneethynylene) was used as the energy donor, and 13 fluorophores were used as ...

Swager, Timothy Manning

133

Photoluminescent energy transfer from poly(phenyleneethylene)s to a series of dyes  

E-Print Network [OSTI]

Photoluminescent energy transfer in conjugated polymer-dye blend films was studied by means of steady-state fluorescence spectroscopy in order to identify efficient energy acceptors with red-shifted emissions relative to ...

Song, Inja, S.M. Massachusetts Institute of Technology

2007-01-01T23:59:59.000Z

134

Method of Reducing the Error of Transferring the Size of a Unit of Laser Radiation Energy  

Science Journals Connector (OSTI)

A method is considered of reducing the error of transferring the size of a unit of laser radiation energy for a secondary standard of the units of average power and energy of laser radiation by using the readi...

A. N. Shchipunov

2002-10-01T23:59:59.000Z

135

Energy collection and charge transfer processes in thin film photocells and photoelectrochemical cells: Final report  

SciTech Connect (OSTI)

The following paragraphs describe accomplishments and significant results for the two lines of research: (1) studies of energy collection and charge transfer processes in thin film systems and (2) solar energy utilization by photosensitized electrode processes at semiconductor electrodes.

Tachikawa, Hiroyasu

1981-12-31T23:59:59.000Z

136

The transfer between electron bulk kinetic energy and thermal energy in collisionless magnetic reconnection  

SciTech Connect (OSTI)

By performing two-dimensional particle-in-cell simulations, we investigate the transfer between electron bulk kinetic and electron thermal energy in collisionless magnetic reconnection. In the vicinity of the X line, the electron bulk kinetic energy density is much larger than the electron thermal energy density. The evolution of the electron bulk kinetic energy is mainly determined by the work done by the electric field force and electron pressure gradient force. The work done by the electron gradient pressure force in the vicinity of the X line is changed to the electron enthalpy flux. In the magnetic island, the electron enthalpy flux is transferred to the electron thermal energy due to the compressibility of the plasma in the magnetic island. The compression of the plasma in the magnetic island is the consequence of the electromagnetic force acting on the plasma as the magnetic field lines release their tension after being reconnected. Therefore, we can observe that in the magnetic island the electron thermal energy density is much larger than the electron bulk kinetic energy density.

Lu, San; Lu, Quanming; Huang, Can; Wang, Shui [CAS Key Lab of Basic Plasma Physics, University of Science and Technology of China, Hefei 230026 (China)] [CAS Key Lab of Basic Plasma Physics, University of Science and Technology of China, Hefei 230026 (China)

2013-06-15T23:59:59.000Z

137

How coherence help excitation energy transfer between chromophres of photosynthesis systems  

E-Print Network [OSTI]

In this paper, we investigate the excited energy transfer (EET) between chromophres by using a dynamical model of EET in photosynthesis systems. The numerical path integral method is used. This method includes the non-Markovian effects of the environmental affects and it does not need the perturbation approximation in solving the dynamics of systems of interest. We obtained that coherence help EET between molecules is because it increases the transfer time rather than enhances the transfer rate of energy.

Liang, Xian-Ting

2010-01-01T23:59:59.000Z

138

Ac-conductivity and electromagnetic energy absorption for the Anderson model in linear response theory  

E-Print Network [OSTI]

We continue our study of the ac-conductivity in linear response theory for the Anderson model using the conductivity measure. We establish further properties of the conductivity measure, including nontriviality at nonzero temperature, the high temperature limit, and asymptotics with respect to the disorder. We also calculate the electromagnetic energy absorption in linear response theory in terms of the conductivity measure.

Abel Klein; Peter Müller

2014-03-03T23:59:59.000Z

139

Quantum Energy Teleportation with a Linear Harmonic Chain  

E-Print Network [OSTI]

A protocol of quantum energy teleportation is proposed for a one-dimensional harmonic chain. A coherent-state POVM measurement is performed to coupled oscillators of the chain in the ground state accompanied by energy infusion to the system. This measurement consumes a part of ground state entanglement. Depending on the measurement result, a displacement operation is performed on a distant oscillator accompanied by energy extraction from the zero-point fluctuation of the oscillator. We find that the amount of consumed entanglement is bounded from below by a positive value that is proportional to the amount of teleported energy.

Yasusada Nambu; Masahiro Hotta

2010-07-14T23:59:59.000Z

140

Quantum Energy Teleportation with a Linear Harmonic Chain  

E-Print Network [OSTI]

A protocol of quantum energy teleportation is proposed for a one-dimensional harmonic chain. A coherent-state POVM measurement is performed to coupled oscillators of the chain in the ground state accompanied by energy infusion to the system. This measurement consumes a part of ground state entanglement. Depending on the measurement result, a displacement operation is performed on a distant oscillator accompanied by energy extraction from the zero-point fluctuation of the oscillator. We find that the amount of consumed entanglement is bounded from below by a positive value that is proportional to the amount of teleported energy.

Nambu, Yasusada

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "linear energy transfer" 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

Effective bridge spectral density for long-range biological energy and charge transfer  

E-Print Network [OSTI]

Effective bridge spectral density for long-range biological energy and charge transfer Oliver Ku of intermediate bridge sites in energy and charge transfer processes in molecular aggregates of arbitrary size analysis for a donor­acceptor system coupled through a single bridge molecule are presented. © 1996

Mukamel, Shaul

142

Efficient broadband energy transfer via momentum matching at hybrid junctions of guided-waves  

E-Print Network [OSTI]

Efficient broadband energy transfer via momentum matching at hybrid junctions of guided://apl.aip.org/about/rights_and_permissions #12;Efficient broadband energy transfer via momentum matching at hybrid junctions of guided, The American University in Cairo, New Cairo 11835, Egypt (Received 2 August 2012; accepted 5 September 2012

143

Nonadiabatic Molecular Dynamics Simulations of the Energy Transfer between Building Blocks in a Phenylene Ethynylene Dendrimer  

E-Print Network [OSTI]

Nonadiabatic Molecular Dynamics Simulations of the Energy Transfer between Building Blocks E. Roitberg*, UniVersidad Nacional de Quilmes, Roque Saenz Pen~a 352, B1876BXD Bernal, Argentina, 2009 The ultrafast dynamics of electronic and vibrational energy transfer between two- and three

Tretiak, Sergei

144

Nonequilibrium statistics of a reduced model for energy transfer in waves  

E-Print Network [OSTI]

Non­equilibrium statistics of a reduced model for energy transfer in waves R. E. LEE DEVILLE, Bah´ia Blanca, Argentina ESTEBAN G. TABAK Courant Institute AND ERIC VANDEN-EIJNDEN Courant Institute Abstract We study energy transfer in a "resonant duet" -- a resonant quartet where symme- tries support

DeVille, Lee

145

Real-time Fluorescent Resonance Energy Transfer Analysis to Monitor Drug Resistance in Chronic Myelogenous Leukemia  

Science Journals Connector (OSTI)

...NH2-terminal YFP (yellow mutant of green fluorescent protein) and a COOH-terminal CFP (cyan mutant of green fluorescent protein). However...conformation change and yielding an energy transfer from CFP to YFP. To...pair of fluorescent resonance energy transfer-based probes for...

Ahmet Tunceroglu; Michiyuki Matsuda; and Raymond B. Birge

2010-11-01T23:59:59.000Z

146

Frster resonance energy transfer enhanced color-conversion using colloidal semiconductor quantum dots for solid  

E-Print Network [OSTI]

F�rster resonance energy transfer enhanced color-conversion using colloidal semiconductor quantum August 2009; published online 15 October 2009 In this paper, we present F�rster resonance energy transfer FRET -enhanced color-conversion using colloidal semiconductor quantum dot nanocrystals NCs to make

Demir, Hilmi Volkan

147

Energy Transfer from an Individual Quantum Dot to a Carbon Nanotube  

E-Print Network [OSTI]

saturation of the energy transfer efficiency at 96%, seemingly independent of CNT chirality. KEYWORDS NanoEnergy Transfer from an Individual Quantum Dot to a Carbon Nanotube Eyal Shafran, Benjamin D. Mangum, and Jordan M. Gerton* Department of Physics and Astronomy, University of Utah, Salt Lake City

Gerton, Jordan M.

148

Generalized Theory of Forster-Type Nonradiative Energy Transfer in Nanostructures with Mixed Dimensionality  

E-Print Network [OSTI]

Generalized Theory of Forster-Type Nonradiative Energy Transfer in Nanostructures with Mixed, Athens, Ohio 45701, United States ABSTRACT: Forster-type nonradiative energy transfer (NRET) is widely that models Forster-type NRET for the cases of mixed dimensionality including all combinations

Demir, Hilmi Volkan

149

Optimisation and comparison of integrated models of direct-drive linear machines for wave energy conversion   

E-Print Network [OSTI]

Combined electrical and structural models of five types of permanent magnet linear electrical machines suitable for direct-drive power take-off on wave energy applications are presented. Electromagnetic models were ...

Crozier, Richard Carson

2014-06-30T23:59:59.000Z

150

Linear Program to Select Energy Conservation Projects in an Existing Facility  

E-Print Network [OSTI]

Linear Programming is a mathematical optimization tool which has been widely used in the chemical and petrochemical industries for scheduling, product planning and utility system optimization. In an energy audit of a refinery or chemical plant...

Mak, J. Y.

1983-01-01T23:59:59.000Z

151

Modelling the Transfer Function for the Dark Energy Survey  

SciTech Connect (OSTI)

We present a forward-modelling simulation framework designed to model the data products from the Dark Energy Survey (DES). This forward-model process can be thought of as a transfer function -- a mapping from cosmological and astronomical signals to the final data products used by the scientists. Using output from the cosmological simulations (the Blind Cosmology Challenge), we generate simulated images (the Ultra Fast Image Simulator, Berge et al. 2013) and catalogs representative of the DES data. In this work we simulate the 244 sq. deg coadd images and catalogs in 5 bands for the DES Science Verification (SV) data. The simulation output is compared with the corresponding data to show that major characteristics of the images and catalogs can be captured. We also point out several directions of future improvements. Two practical examples, star/galaxy classification and proximity effects on object detection, are then used to demonstrate how one can use the simulations to address systematics issues in data analysis. With clear understanding of the simplifications in our model, we show that one can use the simulations side-by-side with data products to interpret the measurements. This forward modelling approach is generally applicable for other upcoming and future surveys. It provides a powerful tool for systematics studies which is sufficiently realistic and highly controllable.

Chang, C.

2014-10-31T23:59:59.000Z

152

Modelling the Transfer Function for the Dark Energy Survey  

E-Print Network [OSTI]

We present a forward-modelling simulation framework designed to model the data products from the Dark Energy Survey (DES). This forward-model process can be thought of as a transfer function -- a mapping from cosmological and astronomical signals to the final data products used by the scientists. Using output from the cosmological simulations (the Blind Cosmology Challenge), we generate simulated images (the Ultra Fast Image Simulator, Berge et al. 2013) and catalogs representative of the DES data. In this work we simulate the 244 sq. deg coadd images and catalogs in 5 bands for the DES Science Verification (SV) data. The simulation output is compared with the corresponding data to show that major characteristics of the images and catalogs can be captured. We also point out several directions of future improvements. Two practical examples, star/galaxy classification and proximity effects on object detection, are then used to demonstrate how one can use the simulations to address systematics issues in data ana...

Chang, C; Wechsler, R H; Refregier, A; Amara, A; Rykoff, E; Becker, M R; Bruderer, C; Gamper, L; Leistedt, B; Peiris, H; Abbott, T; Abdalla, F B; Banerji, M; Bernstein, R A; Bertin, E; Brooks, D; Rosell, A Carnero; Desai, S; da Costa, L N; Cunha, C E; Eifler, T; Evrard, A E; Neto, A Fausti; Gerdes, D; Gruen, D; James, D; Kuehn, K; Maia, M A G; Makler, M; Ogando, R; Plazas, A; Sanchez, E; Schubnell, M; Sevilla-Noarbe, I; Smith, C; Soares-Santos, M; Suchyta, E; Swanson, M E C; Tarle, G; Zuntz, J

2014-01-01T23:59:59.000Z

153

Single-collision studies of energy transfer and chemical reaction  

SciTech Connect (OSTI)

The research focus in this group is state-to-state dynamics of reaction and energy transfer in collisions of free radicals such as H, OH, and CH{sub 3} with H{sub 2}, alkanes, alcohols and other hydrogen-containing molecules. The motivation for the work is the desire to provide a detailed understanding of the chemical dynamics of prototype reactions that are important in the production and utilization of energy sources, most importantly in combustion. The work is primarily experimental, but with an important and growing theoretical/computational component. The focus of this research program is now on reactions in which at least one of the reactants and one of the products is polyatomic. The objective is to determine how the high dimensionality of the reactants and products differentiates such reactions from atom + diatom reactions of the same kinematics and energetics. The experiments use highly time-resolved laser spectroscopic methods to prepare reactant states and analyze the states of the products on a single-collision time scale. The primary spectroscopic tool for product state analysis is coherent anti-Stokes Raman scattering (CARS) spectroscopy. CARS is used because of its generality and because the extraction of quantum state populations from CARS spectra is straightforward. The combination of the generality and easy analysis of CARS makes possible absolute cross section measurements (both state-to-state and total), a particularly valuable capability for characterizing reactive and inelastic collisions. Reactant free radicals are produced by laser photolysis of appropriate precursors. For reactant vibrational excitation stimulated Raman techniques are being developed and implemented.

Valentini, J.J. [Columbia Univ., New York, NY (United States)

1993-12-01T23:59:59.000Z

154

Investigation of Solar Energy Transfer through Plasmonic Au Nanoparticle-doped Sol-derived TiO? Thin Films in Photocatalysis and Photovoltaics /  

E-Print Network [OSTI]

SAN DIEGO Investigation of Solar Energy Transfer through20 Solar Energy Conversion ThroughOF THE THESIS Investigation of Solar Energy Transfer through

Zelinski, Andrew

2013-01-01T23:59:59.000Z

155

Knowledge Capture and Transfer Program | Department of Energy  

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

Performance-Based Culture » Performance-Based Culture » Knowledge Capture and Transfer Program Knowledge Capture and Transfer Program The Office of Learning and Workforce Development is working with Heads of Departmental Elements, DOE senior leaders and subject-matter-experts to capture and transfer the knowledge and experiences of its current employees, through the Knowledge Capture and Transfer Program. This program is initiating immediate action to stem the potential loss of critical knowledge and skills possessed by older, retirement eligible employees. Recognizing adverse economic conditions and dwindling budgets, the DOE will utilize cost-effective methods, including leveraging the highly technical and diverse expertise within the Department, to help address its knowledge capture and transfer challenges.

156

Linear and nonlinear instabilities in unified dark energy models  

SciTech Connect (OSTI)

We revisit the paradigm of unified dark energy discussing in detail the averaging problem in this type of scenario, highlighting the need for a full nonlinear treatment. We also address the question of if and how models with one or several dark fluids can be observationally distinguished. Simpler and physically clearer derivations of some key results, most notably on the relation between the generalized Chaplygin gas and the standard ({lambda}CDM) 'concordance' model and on a Jeans-type small-scale instability of some coupled dark energy/dark matter models are presented.

Avelino, P. P.; Beca, L. M. G. [Centro de Fisica do Porto, Rua do Campo Alegre 687, 4169-007 Porto (Portugal); Departamento de Fisica da Faculdade de Ciencias da Universidade do Porto, Rua do Campo Alegre 687, 4169-007 Porto (Portugal); Martins, C. J. A. P. [Centro de Fisica do Porto, Rua do Campo Alegre 687, 4169-007 Porto (Portugal); Centro de Astrofisica, Universidade do Porto, Rua das Estrelas s/n, 4150-762 Porto (Portugal); Department of Applied Mathematics and Theoretical Physics, Centre for Mathematical Sciences, University of Cambridge, Wilberforce Road, Cambridge CB3 0WA (United Kingdom)

2008-03-15T23:59:59.000Z

157

Demo Abstract: Energy Transference for Sensornets Affan A. Syed Young Cho John Heidemann  

E-Print Network [OSTI]

Demo Abstract: Energy Transference for Sensornets Affan A. Syed Young Cho John Heidemann USC continuous monitoring, 24x7, at remote, inaccessible locations making energy man- agement a critical part of most sensornets. The sensornet research community has explored energy conservation and energy

Heidemann, John

158

Demo Abstract: Energy Transference for Sensornets ISI Technical Report ISI-TR-2010-669  

E-Print Network [OSTI]

Demo Abstract: Energy Transference for Sensornets ISI Technical Report ISI-TR-2010-669 November, inaccessible locations making energy man- agement a critical part of most sensornets. The sensornet research community has explored energy conservation and energy harvesting to address this problem of long-lived sen

Heidemann, John

159

Report of the Nuclear Energy Agency Expert Group on Gut Transfer Factors: Implications for Dose per Unit Intake  

Science Journals Connector (OSTI)

......Radiation Protection Dosimetry Article Report of the Nuclear Energy Agency Expert Group on Gut Transfer Factors: Implications...transfer factors recommended by an Expert Group of the Nuclear Energy Agency for intakes of certain important elements in......

G.M. Kendall; J.D. Harrison; T.P. Fell

1988-09-01T23:59:59.000Z

160

International Center for Environmental Technology Transfer | Open Energy  

Open Energy Info (EERE)

Transfer Transfer Jump to: navigation, search Logo: International Center for Environmental Technology Transfer Name International Center for Environmental Technology Transfer Place Yokkaichi, Japan Year founded 1990 Coordinates 34.9651567°, 136.6244847° 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":34.9651567,"lon":136.6244847,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "linear energy transfer" 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

High linear-energy-transfer radiation can overcome radioresistance of glioma stem-like cells to low linear-energy-transfer radiation  

Science Journals Connector (OSTI)

......irradiation, especially thermal neutron irradiation. Boron-10 (10B) releases alpha (4He) and 7Li particles through...14 Kobayashi T , Kanda K. Analytical calculation of boron-10 dosage in cell nucleus for neutron capture therapy. Radiat......

Yuki Hirota; Shin-Ichiro Masunaga; Natsuko Kondo; Shinji Kawabata; Hirokazu Hirakawa; Hirohiko Yajima; Akira Fujimori; Koji Ono; Toshihiko Kuroiwa; Shin-Ichi Miyatake

2014-01-01T23:59:59.000Z

162

Robust energy transfer mechanism via precession resonance in nonlinear turbulent wave systems  

E-Print Network [OSTI]

A robust energy transfer mechanism is found in nonlinear wave systems, which favours transfers towards modes interacting via triads with nonzero frequency mismatch, applicable in meteorology, nonlinear optics and plasma wave turbulence. We introduce the concepts of truly dynamical degrees of freedom and triad precession. Transfer efficiency is maximal when the triads' precession frequencies resonate with the system's nonlinear frequencies, leading to a collective state of synchronised triads with strong turbulent cascades at intermediate nonlinearity. Numerical simulations confirm analytical predictions.

Miguel D. Bustamante; Brenda Quinn; Dan Lucas

2014-04-30T23:59:59.000Z

163

Global analysis of Fo rster resonance energy transfer in live cells measured by fluorescence lifetime imaging microscopy exploiting  

E-Print Network [OSTI]

Global analysis of Fo¨ rster resonance energy transfer in live cells measured by fluorescence of Fo¨ rster resonance energy transfer (FRET) in live cells using the rise time of acceptor fluorescence those molecules that are involved in the energy-transfer process are monitored. This contrasts

van Stokkum, Ivo

164

Structural tuning of color chromaticity through nonradiative energy transfer by interspacing CdTe nanocrystal monolayers  

E-Print Network [OSTI]

Structural tuning of color chromaticity through nonradiative energy transfer by interspacing CdTe transfer in the heterostructure of layer-by-layer spaced CdTe nanocrystal NC solids. We achieved highly demonstrated efficient FRET in LbL assembled bilayers of CdTe NCs. In another structure, alternating layers

Demir, Hilmi Volkan

165

Context-for-Wireless: Context-Sensitive Energy-Efficient Wireless Data Transfer  

E-Print Network [OSTI]

Context-for-Wireless: Context-Sensitive Energy-Efficient Wireless Data Transfer Ahmad Rahmati and Lin Zhong Department of Electrical & Computer Engineering Rice University, Houston, TX 77005 {rahmati by choosing wireless interfaces for data transfers based on network condition estimation. We show

Zhong, Lin

166

An endogenous green fluorescent protein–photoprotein pair in Clytia hemisphaerica eggs shows co-targeting to mitochondria and efficient bioluminescence energy transfer  

Science Journals Connector (OSTI)

...compartmentalization. green fluorescent protein...bioluminescence resonance energy transfer|clytin...chemiluminescence-resonance-energy-transfer chimaeras between green fluorescent protein...Cormier. 1979 An energy transfer protein...of the Renilla green-fluorescent protein...

2014-01-01T23:59:59.000Z

167

Dual-Emission Fluorescence Resonance Energy Transfer (FRET) Real-Time PCR Differentiates Feline Immunodeficiency Virus Subtypes and Discriminates Infected from Vaccinated Cats  

Science Journals Connector (OSTI)

...fluorescence resonance energy transfer (FRET...indicator of infection status in vaccinated cats...fluorescence resonance energy transfer (FRET...view/xhtml/en_us/smallanimal/inhouse...fluorescence resonance energy transfer (FRET...indicator of infection status. After the introduction...

Chengming Wang; Calvin M. Johnson; Sudhir K. Ahluwalia; Erfan Chowdhury; Yihang Li; Dongya Gao; Anil Poudel; K. Shamsur Rahman; Bernhard Kaltenboeck

2010-03-24T23:59:59.000Z

168

A High Intensity Linear e+ e- Collider Facility at Low Energy  

E-Print Network [OSTI]

I discuss a proposal for a high intensity $e^+e^-$ linear collider operated at low center of mass energies $\\sqrt{s}intensity beams. Such a facility would provide high statistics samples of (charmed) vector mesons and would permit searches for LFV with unprecedented precision in decays of $\\tau$ leptons and mesons. Implications on the design of the linear accelerator are discussed together with requirements to achieve luminosities of $10^{35}$ cm$^{-2}$s$^{-1}$ or more.

A. Schoning

2006-10-23T23:59:59.000Z

169

Conformational free energy of melts of ring-linear polymer blends  

Science Journals Connector (OSTI)

The conformational free energy of ring polymers in a blend of ring and linear polymers is investigated using the bond-fluctuation model. Previously established scaling relationships for the free energy of a ring polymer are shown to be valid only in the mean-field sense, and alternative functional forms are investigated. It is shown that it may be difficult to accurately express the total free energy of a ring polymer by a simple scaling argument, or in closed form.

Gopinath Subramanian and Sachin Shanbhag

2009-10-21T23:59:59.000Z

170

E-Print Network 3.0 - atom energy transfer Sample Search Results  

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

Plasma Physics and Fusion ; Physics 2 Role of Surface Intramolecular Dynamics in the Efficiency of Energy Transfer in Ne Atom Collisions with a n-Hexylthiolate Self-Assembled...

171

Efficient Föster energy transfer : from phosphorescent organic molecules to J-aggregate thin film  

E-Print Network [OSTI]

This thesis demonstrates the first ever use of Forster resonance energy transfer (FRET) to increase the quantum efficiency of a electrically pumped J-aggregate light emitting device (JLED). J-aggregate thin films are highly ...

Shirasaki, Yasuhiro

2008-01-01T23:59:59.000Z

172

Demonstration: The Key to Technology Transfer in the Field of Energy Conservation in the UK  

E-Print Network [OSTI]

Technology transfer has been one of the most intractable problems faced on a worldwide basis. The problem is particularly acute in the field of energy efficiency because none of the 3 major parties involved, the researcher, the manufacturer...

Carter, D. E. F.; Lawrence, J. E.

1983-01-01T23:59:59.000Z

173

Enhance energy transfer between quantum dots by the surface plasmon of Ag island film  

Science Journals Connector (OSTI)

We observed enhanced energy transfer between quantum dots which were spin coated on the surface of Ag island film. By adjusting the thickness of Al2O3 spacer...

Xu, Hui; Liu, Jiaming; Duan, Xiaoyu; Li, Jiahua; Xue, Jiancai; Sun, Xiye; Cai, Yefan; Zhou, Zhang-Kai; Wang, Xuehua

2014-01-01T23:59:59.000Z

174

Energy transfer in clustered sites of Er3+ ions in LiNbO3 crystals  

Science Journals Connector (OSTI)

We investigated energy-transfer processes associated with clustered sites of Er3+ ions in LiNbO3 crystals leading to upconverted blue-green fluorescence and...

Ju, Jung Jin; Lee, Myung-Hyun; Cha, Myoungsik; Seo, Hyo Jin

2003-01-01T23:59:59.000Z

175

Current-Induced Modulation of the Ocean Wave Spectrum and the Role of Nonlinear Energy Transfer  

Science Journals Connector (OSTI)

Numerical simulations were performed to investigate current-induced modulation of the spectral and statistical properties of ocean waves advected by idealized and realistic current fields. In particular, the role of nonlinear energy transfer ...

Hitoshi Tamura; Takuji Waseda; Yasumasa Miyazawa; Kosei Komatsu

2008-12-01T23:59:59.000Z

176

Collective coordinates for nuclear spectral densities in energy transfer and femtosecond spectroscopy of molecular aggregates  

E-Print Network [OSTI]

Collective coordinates for nuclear spectral densities in energy transfer and femtosecond collective nuclear coordinates necessary to represent a given set of spectral densities is obtained coordinates phase space. The signatures of excitonic and nuclear motions in ultrafast fluorescence

Mukamel, Shaul

177

White Light Generating Nonradiative Energy Transfer Directly from Epitaxial Quantum Wells to Colloidal Nanocrystal Quantum Dots  

Science Journals Connector (OSTI)

We present white light generating nonradiative Förster resonance energy transfer at a rate of (2ns)-1directly from epitaxial InGaN/GaN quantum wells to CdSe/ZnS...

Nizamoglu, Sedat; Sari, Emre; Baek, Jong-Hyeob; Lee, In-Hwan; Demir, Hilmi Volkan

178

Energy Transfer Enhancement by Localization of Light in a Sandwich-like Photonic Structure  

Science Journals Connector (OSTI)

Localization and slow light propagation enhance the efficiency of the energy transfer process between a donor-acceptor pair embedded in a polymer matrix and inserted in a double stack...

González-Urbina, Luis; Pérez-Moreno, Javier; Clays, Koen

179

Energy transfer between incident laser and elastically backscattered waves in nonlinear absorption media  

Science Journals Connector (OSTI)

A model of energy transfer by nearly degenerate two-beam coupling in media exhibiting two-photon and excited state absorption is presented and discussed. The two beams include an...

Sutherland, Richard

2005-01-01T23:59:59.000Z

180

How Much Energy Is Transferred from the Winds to the Thermocline on ENSO Time Scales?  

E-Print Network [OSTI]

How Much Energy Is Transferred from the Winds to the Thermocline on ENSO Time Scales? JACLYN N the winds (via wind power) and changes in the storage of available potential energy in the tropical ocean~o is characterized by a decrease in wind power that leads to a decrease in available potential energy, and hence

Note: This page contains sample records for the topic "linear energy transfer" 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

Exact asymptotics for nonradiative migration-accelerated energy transfer in one-dimensional systems  

Science Journals Connector (OSTI)

We study direct energy transfer by multipolar or exchange interactions between diffusive excited donor and diffusive unexcited acceptors. Extending over the case of long-range transfer of an excitation energy a nonperturbative approach by Bray and Blythe [Phys. Rev. Lett. 89, 150601 (2002)], originally developed for contact diffusion-controlled reactions, we determine exactly long-time asymptotics of the donor decay function in one-dimensional systems.

G. Oshanin and M. Tachiya

2008-09-19T23:59:59.000Z

182

The Role of the Concentration Scale in the Definition of Transfer Free Energies  

E-Print Network [OSTI]

The Gibbs free energy of transferring a solute at infinite dilution between two solvents quantifies differences in solute-solvent interactions $-$ if the transfer takes place at constant molarity of the solute. Yet, many calculation formulae and measuring instructions that are commonly used to quantify solute-solvent interactions correspond to transfer processes in which not the molarity of the solute but its concentration measured in another concentration scale is constant. Here, we demonstrate that in this case, not only the change in solute-solvent interactions is quantified but also the entropic effect of a volume change during the transfer. Consequently, the "phenomenon" which is known as "concentration-scale dependence" of transfer free energies is simply explained by a volume-entropy effect. Our explanations are of high importance for the study of cosolvent effects on protein stability.

Moeser, Beate

2014-01-01T23:59:59.000Z

183

Technology transfer of small-scale energy technologies in the US Pacific Territories  

SciTech Connect (OSTI)

From 1977 to 1981 the Department of Energy has awarded 32 grants for small-scale energy projects in the US Pacific Territories. A critical issue with these projects has been transferring the technology within the community once the project has been completed. Certain projects are more successful at this than others. There are elements common to projects which are the most successful in this regard. In addition, there appear to be five different types of technology transfer processes. This paper identifies these processes, illustrates each with a case study, and points out the common elements. Perhaps this information can be used when designing other projects to facilitate technology transfer in developing countries.

Case, C.W.

1982-01-01T23:59:59.000Z

184

Linear and nonlinear TAR panel unit root analyses for solid biomass energy supply of European countries  

Science Journals Connector (OSTI)

Biomass is one of the major sources of renewable energy in the World. This paper aims at observing primary biomass energy supply in some EU countries within periods1971–2009 and 1982–2009. Following related two panel data sets for biomass in EU, this work employs linear models and nonlinear threshold autoregression (TAR) models to test linearity against nonlinearity and nonstationarity against stationarity. If nonlinearity is found, then, the next step is to search transition variable and threshold value of the panel data sets. This paper eventually has the purpose to reveal if EU countries converge in the production of biomass in a linear form or nonlinear form. Findings show that panel of Austria, Denmark, Finland, France and Portugal follows nonlinear process and reaches partial convergence in per million primary solid biomass energy supply. However, the involvement of Belgium, Greece, Norway, Poland and Sweden to the panel yields linearity and divergence. One may suggest policy makers of EU and/or OECD, upon conclusion of this paper, to revise their energy policies to stimulate both production and consumption of biomass energy source.

Faik Bilgili

2012-01-01T23:59:59.000Z

185

Controlling energy transfer between multiple dopants within a single nanoparticle  

Science Journals Connector (OSTI)

...low vibrational energy. Because of such...in LEDs (1), solar cell energy conversion (2...use of NPs has an advantage over the glass-ceramic...low vibrational energies, high thermal and chemical...there also are some disadvantages. One has to be...

Jeffrey R. DiMaio; Clément Sabatier; Baris Kokuoz; John Ballato

2008-01-01T23:59:59.000Z

186

Energy transfers in shell models for MHD turbulence  

E-Print Network [OSTI]

A systematic procedure to derive shell models for MHD turbulence is proposed. It takes into account the conservation of ideal quadratic invariants such as the total energy, the cross-helicity and the magnetic helicity as well as the conservation of the magnetic energy by the advection term in the induction equation. This approach also leads to simple expressions for the energy exchanges as well as to unambiguous definitions for the energy fluxes. When applied to the existing shell models with nonlinear interactions limited to the nearest neighbour shells, this procedure reproduces well known models but suggests a reinterpretation of the energy fluxes.

T. Lessinnes; M. K. Verma; D. Carati

2008-07-31T23:59:59.000Z

187

Use of Crystals for High Energy Photon Beam Linear Polarization Conversion into Circular  

E-Print Network [OSTI]

The possibility to convert the photon beam linear polarization into circular one at photon energies of hundreds GeV with the use of crystals is considered. The energy and orientation dependencies of refractive indexes are investigated in case of diamond, silicon and germanium crystal targets. To maximize the values for figure of merit, the corresponding crystal optimal orientation angles and thickness are found. The degree of circular polarization and intensity of photon beam are estimated and possibility of experimental realization is discussed.

N. Z. Akopov; A. B. Apyan; S. M. Darbinyan

2000-02-15T23:59:59.000Z

188

Non-contact pumping of light emitters via non-radiative energy transfer  

DOE Patents [OSTI]

A light emitting device is disclosed including a primary light source having a defined emission photon energy output, and, a light emitting material situated near to said primary light source, said light emitting material having an absorption onset equal to or less in photon energy than the emission photon energy output of the primary light source whereby non-radiative energy transfer from said primary light source to said light emitting material can occur yielding light emission from said light emitting material.

Klimov, Victor I. (Los Alamos, NM); Achermann, Marc (Los Alamos, NM)

2010-01-05T23:59:59.000Z

189

CONSTRAINTS ON LASER-DRIVEN ACCELERATORS FOR A HIGH-ENERGY LINEAR COLLIDER*  

E-Print Network [OSTI]

CONSTRAINTS ON LASER-DRIVEN ACCELERATORS FOR A HIGH-ENERGY LINEAR COLLIDER* J.S. Wurtele and AV on 1 TeV) are applied to free-space laser and laser/plasma accelerators. It is shown that the requirements impose very severe constraints upon the new accelerators-- so severe, that it seems unlikely

Wurtele, Jonathan

190

A simple model for exploring the role of quantum coherence and the environment in excitonic energy transfer  

E-Print Network [OSTI]

We investigate the role of quantum coherence in modulating the energy transfer rate between two energy donors and a single acceptor participating in an excitonic energy transfer process. The energy transfer rate depends explicitly on the nature of the initial coherent superposition state of the two donors and we connect it to the observed absorption profile of the acceptor and the stimulated emission profile of the energy donors. We consider simple models with mesoscopic environments interacting with the donors and the acceptor and compare the expression we obtained for the energy transfer rate with the results of numerical integration.

Sreenath K Manikandan; Anil Shaji

2014-11-17T23:59:59.000Z

191

A simple model for exploring the role of quantum coherence and the environment in excitonic energy transfer  

E-Print Network [OSTI]

We investigate the role of quantum coherence in modulating the energy transfer rate between two energy donors and a single acceptor participating in an excitonic energy transfer process. The energy transfer rate depends explicitly on the nature of the initial coherent superposition state of the two donors and we connect it to the observed absorption profile of the acceptor and the stimulated emission profile of the energy donors. We consider simple models with mesoscopic environments interacting with the donors and the acceptor and compare the expression we obtained for the energy transfer rate with the results of numerical integration.

Manikandan, Sreenath K

2014-01-01T23:59:59.000Z

192

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, Energy Transfer and Flow in the Solar1  

E-Print Network [OSTI]

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, Energy Transfer and Flow TENFJORD AND Ã?STGAARD: ENERGY TRANSFER AND FLOW Abstract. In this paper we describe and quantify the energy data. We employ what we consider to be the best es-6 timates for energy sinks, and relate

Ã?stgaard, Nikolai

193

2086 IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 61, NO. 5, MAY 2013 Interactive Joint Transfer of Energy and Information  

E-Print Network [OSTI]

, interactive communication, energy transfer, energy harvesting. I. INTRODUCTION THE conventional assumption of Energy and Information P. Popovski, A. M. Fouladgar, and O. Simeone Abstract--In some communication networks, such as passive RFID systems, the energy used to transfer information between a sender

Simeone, Osvaldo

194

January 25, 2008/ARR 1 Heat and Mass Transfer in Fusion Energy  

E-Print Network [OSTI]

January 25, 2008/ARR 1 Heat and Mass Transfer in Fusion Energy Applications: from the "Very Cold, CA January 25, 2008 #12;January 25, 2008/ARR 2 Unique Set of Conditions Associated with Fusion · Realization of fusion energy imposes considerable challenges in the areas of engineering, physics and material

Raffray, A. René

195

Energy transfer in nanowire solar cells with photon-harvesting shells C. H. Peters,a  

E-Print Network [OSTI]

Energy transfer in nanowire solar cells with photon-harvesting shells C. H. Peters,a A. R. Guichard; published online 23 June 2009 The concept of a nanowire solar cell with photon-harvesting shells are bonded to the surface of the SiNWs forming a thin shell. They absorb the low-energy photons

McGehee, Michael

196

Switching Individual Quantum Dot Emission through Electrically Controlling Resonant Energy Transfer to Graphene  

Science Journals Connector (OSTI)

Also, as the inhomogeneous broadening of the quantum dot’s bandgap is larger than the QCSE shift, only certain donor–acceptor pairs with highly similar energies are switchable. ... The simulated photoluminescence (solid green) was obtained by calculating the energy transfer rate from quantum dots to graphene. ...

Jiye Lee; Wei Bao; Long Ju; P. James Schuck; Feng Wang; Alexander Weber-Bargioni

2014-11-10T23:59:59.000Z

197

Forster resonance energy transfer in liposomes: Measurements of transmembrane helix dimerization in the native  

E-Print Network [OSTI]

Fo¨rster resonance energy transfer in liposomes: Measurements of transmembrane helix dimerization membranes. � 2005 Elsevier Inc. All rights reserved. Free energy measurements of transmembrane (TM)1 helix system, however, measuring the thermodynamics of membrane protein association is a challenge. Here we

Wimley, William C.

198

An Efficient Instantiation Algorithm for Simulating Radiant Energy Transfer in Plant Models  

E-Print Network [OSTI]

in agronomy concerning the influence of light over the production of a cultivated crop under differentAn Efficient Instantiation Algorithm for Simulating Radiant Energy Transfer in Plant Models Cyril simu- lation of light energy exchange inside plants models. This is obviously useful for visual

Boyer, Edmond

199

Notice of Inquiry: Technology Transfer Practices at Department of Energy (DOE) Laboratories (73 FR 72036)  

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

V V E R S I T Y O F C A L I F O R N I A BERKELEY * DAVIS * IRVINE * LOS ANGELES * MERCED * RIVERSIDE * SAN DIEGO * SAN FRANCISCO SANTA BARBARA * SANTA CRUZ OFFICE OF THE PROVOST AND EXECUTIVE VICE PRESIDENT - ACADEMIC AFFAIRS OFFICE OF TECHNOLOGY TRANSFER 1111 Franklin Street, 5 th Floor Oakland, California 94607-5200 Web Site: www.ucop.edu/ott/ Tel: (510) 587-6000 Fax: (510) 587-6090 January 23, 2009 Submitted electronically to GC-62@hq.doe.gov Office of the Assistant General Counsel for Technology Transfer and Intellectual Property U.S. Department of Energy 1000 Independence Ave., SW Washington, DC 20585 Attn: Technology Transfer Questions Subject: Notice of Inquiry: Technology Transfer Practices at Department of Energy (DOE) Laboratories (73 FR 72036)

200

A Green's function formalism of energy and momentum transfer in fluctuational electrodynamics  

E-Print Network [OSTI]

Radiative energy and momentum transfer due to fluctuations of electromagnetic fields arising due to temperature difference between objects is described in terms of the cross-spectral densities of the electromagnetic fields. We derive relations between thermal non-equilibrium contributions to energy and momentum transfer and surface integrals of tangential components of the dyadic Green's functions of the vector Helmholtz equation. The expressions derived here are applicable to objects of arbitrary shapes, dielectric functions, as well as magnetic permeabilities. For the case of radiative transfer, we derive expressions for the generalized transmissivity and generalized conductance that are shown to obey reciprocity and agree with theory of black body radiative transfer in the appropriate limit.

Arvind Narayanaswamy; Yi Zheng

2013-02-03T23:59:59.000Z

Note: This page contains sample records for the topic "linear energy transfer" 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

Collective F\\"orster energy transfer modified by the planar metallic mirror  

E-Print Network [OSTI]

We present a theory of the F\\"orster energy transfer between the arrays of donor and acceptor molecules lying on the planar metallic mirror. We reveal strong modification of the effective transfer rate by the mirror in the incoherent pumping regime. The rate can be either suppressed or enhanced depending on the relative positions between acceptor and donor arrays. The strong modification of the transfer rate is a collective effect, mediated by the light-induced coupling between the donors; it is absent in the single donor model.

Poddubny, Alexander N

2015-01-01T23:59:59.000Z

202

Quantum cutting by cooperative energy transfer in YbxY1?xPO4:Tb3+  

Science Journals Connector (OSTI)

We present experimental evidence for cooperative energy transfer from Tb3+ to two Yb3+ ions and a determination of the energy-transfer rate. Energy transfer from Tb3+ to Yb3+ was investigated by luminescence measurements on (YbxY1?x)PO4 doped with 1% Tb3+. Time-resolved luminescence experiments were analyzed using Monte Carlo simulations based on theories for phonon-assisted, cooperative, and accretive energy transfer. The luminescence decay curves of the D45 emission from Tb3+ show an excellent agreement with simulations based on cooperative energy transfer via dipole-dipole interaction, while a phonon-assisted or an accretive energy-transfer mechanism cannot explain the experimental results. The energy-transfer rate to two nearest-neighbor Yb3+ ions is 0.26ms?1. This corresponds to an upper limit of the energy-transfer efficiency of 88% in YbPO4. Application of cooperative energy transfer has prospects for increasing the energy efficiency of crystalline Si solar cells by photon doubling of the high energy part of the solar spectrum.

P. Vergeer; T. J. H. Vlugt; M. H. F. Kox; M. I. den Hertog; J. P. J. M. van der Eerden; A. Meijerink

2005-01-31T23:59:59.000Z

203

Laser-induced quadrupole-quadrupole collisional energy transfer in Xe-Kr systems  

Science Journals Connector (OSTI)

Experimental investigation of laser-induced quadrupole-quadrupole collisional energy transfer between Xe and Kr is reported in this paper. The excitation spectrum of laser-induced collisional energy transfer (LICET) is characterized by a slowly decreasing tail on the blue side of the peak and a width of ?30 cm?1. The experimental evidence shows that in the quasistatic wing the quadrupole-quadrupole LICET spectrum follows a power law that is different from the dipole-dipole LICET line shape and the profile of the quadrupole-quadrupole LICET decreases more slowly than the dipole-dipole LICET profile. The results indicate that the laser-induced quadrupole-quadrupole collision can be considered as a practical process to transfer energy selectively from a storage state making a parity-nonallowed transition to a target state making a parity-allowed transition.

Zhenzhong Lu (???); Deying Chen (???); Rongwei Fan (???); Yuanqin Xia (???)

2012-06-01T23:59:59.000Z

204

Charting the routes to commercialization: The absorption and transfer of energy conservation technologies  

Science Journals Connector (OSTI)

This study examines how innovations in Energy Conservation Technologies (ECT's) developed through public sponsorship become commercialized. In the typical ECT project, public support is used as a catalyst bringing public and private organizations together to perform the work. The variety of routes to commercialization this creates can be analysed using two concepts: absorption and transfer. Absorption is adoption of an ECT by an organization participating in the project. Transfer is adoption by non-participants. Two cases sponsored by the New York State Energy Research and Development Authority (the Energy Authority) are analysed. In the first case commercialization is limited to the absorption process. In the second case both absorption and transfer are used in commercialization.

Gordon Kingsley; Barry Bozeman

1997-01-01T23:59:59.000Z

205

On the transfer of atmospheric energy from the Gulf of Mexico to the continental United States  

E-Print Network [OSTI]

ON THE TRANSFER OF ATMOSPHERIC ENERGY FROM THE GULP OF MEXICO TO THE CONTINENTAL UNITED STATES A Thesis RICHARD WILLIAM KNIGHT Submitted to the Graduate College of Texas AkM University in partial fulfillment of the requirement for the degree... of MASTER OF SCIENCE Deoember 1972 Ma)or Sub)ect: Meteorology ON THE TRANSFER OF ATMOSPHERIC ENERGY FROM THE GULF OF MEXICO TO THE CONTINENTAL UNITED STATES A Thesis RICHARD WILLIAM KNIGHT Approved as to style and content by: Chairman of ommittee...

Knight, Richard William

2012-06-07T23:59:59.000Z

206

Time-resolved energy transfer from single chloride-terminated nanocrystals to graphene  

SciTech Connect (OSTI)

We examine the time-resolved resonance energy transfer of excitons from single n-butyl amine-bound, chloride-terminated nanocrystals to two-dimensional graphene through time-correlated single photon counting. The radiative biexponential lifetime kinetics and blinking statistics of the individual surface-modified nanocrystal elucidate the non-radiative decay channels. Blinking modification as well as a 4× reduction in spontaneous emission were observed with the short chloride and n-butylamine ligands, probing the energy transfer pathways for the development of graphene-nanocrystal nanophotonic devices.

Ajayi, O. A., E-mail: oaa2114@columbia.edu, E-mail: cww2104@columbia.edu; Wong, C. W., E-mail: oaa2114@columbia.edu, E-mail: cww2104@columbia.edu [Optical Nanostructures Laboratory, Center for Integrated Science and Engineering, Solid-State Science and Engineering, Columbia University, New York, New York 10027 (United States); Department of Mechanical Engineering, Columbia University, New York, New York 10027 (United States); Anderson, N. C.; Wolcott, A.; Owen, J. S. [Department of Chemistry, Columbia University, New York, New York 10027 (United States); Cotlet, M. [Brookhaven National Laboratory, Upton, New York, New York 11973 (United States); Petrone, N.; Hone, J. [Department of Mechanical Engineering, Columbia University, New York, New York 10027 (United States); Gu, T.; Gesuele, F. [Optical Nanostructures Laboratory, Center for Integrated Science and Engineering, Solid-State Science and Engineering, Columbia University, New York, New York 10027 (United States)

2014-04-28T23:59:59.000Z

207

The First Events in Photosynthesis: Electronic Coupling and Energy Transfer Dynamics in the Photosynthetic Reaction Center from Rhodobacter sphaeroides  

E-Print Network [OSTI]

The First Events in Photosynthesis: Electronic Coupling and Energy Transfer Dynamics in photosynthesis. The reaction center contains six chlorophyll-like pigments arranged with approximate C2 symmetry

Scherer, Norbert F.

208

Inhibition of plasmonically enhanced interdot energy transfer in quantum dot solids via photo-oxidation  

SciTech Connect (OSTI)

We studied the impact of photophysical and photochemical processes on the interdot Forster energy transfer in monodisperse CdSe/ZnS quantum dot solids. For this, we investigated emission spectra of CdSe/ZnS quantum dot solids in the vicinity of gold metallic nanoparticles coated with chromium oxide. The metallic nanoparticles were used to enhance the rate of the energy transfer between the quantum dots, while the chromium oxide coating led to significant increase of their photo-oxidation rates. Our results showed that irradiation of such solids with a laser beam can lead to unique spectral changes, including narrowing and blue shift. We investigate these effects in terms of inhibition of the plasmonically enhanced interdot energy transfer between quantum dots via the chromium-oxide accelerated photo-oxidation process. We demonstrate this considering energy-dependent rate of the interdot energy transfer process, plasmonic effects, and the way photo-oxidation enhances non-radiative decay rates of quantum dots with different sizes.

Sadeghi, S. M. [Department of Physics, University of Alabama in Huntsville, Huntsville, Alabama 35899 (United States); Nano and Micro Device Center, University of Alabama in Huntsville, Huntsville, Alabama 35899 (United States); Nejat, A.; West, R. G. [Department of Physics, University of Alabama in Huntsville, Huntsville, Alabama 35899 (United States)

2012-11-15T23:59:59.000Z

209

Efficient estimation of energy transfer efficiency in light-harvesting complexes  

E-Print Network [OSTI]

The fundamental physical mechanisms of energy transfer in photosynthetic complexes is not yet fully understood. In particular, the degree of efficiency or sensitivity of these systems for energy transfer is not known given their non-perturbative and non-Markovian interactions with proteins backbone and surrounding photonic and phononic environments. One major problem in studying light-harvesting complexes has been the lack of an efficient method for simulation of their dynamics in biological environments. To this end, here we revisit the second-order time-convolution (TC2) master equation and examine its reliability beyond extreme Markovian and perturbative limits. In particular, we present a derivation of TC2 without making the usual weak system-bath coupling assumption. Using this equation, we explore the long time behaviour of exciton dynamics of Fenna-Matthews-Olson (FMO) protein complex. Moreover, we introduce a constructive error analysis to estimate the accuracy of TC2 equation in calculating energy transfer efficiency, exhibiting reliable performance for environments with weak and intermediate memory and strength. Furthermore, we numerically show that energy transfer efficiency is optimal and robust for the FMO protein complex of green sulphur bacteria with respect to variations in reorganization energy and bath correlation time-scales.

Alireza Shabani; Masoud Mohseni; Herschel Rabitz; Seth Lloyd

2011-03-20T23:59:59.000Z

210

Bremsstrahlung linear polarization at incident electron energies of 0.5-1.5 MeV  

Science Journals Connector (OSTI)

At incident electron energies of 0.5-1.5 MeV, bremsstrahlung linear polarization was measured for thin targets of beryllium, aluminum, silver, and gold at emission angles of 10°-122° as a function of photon energy. Data were corrected for electron scattering in the target and for multiple scattering of photons in the Compton polarimeter used. For low-atomic-number targets the experimental results are perfectly in agreement with Born-approximation theory and with computations using Sommerfeld-Maue eigen-functions, whereas the high-atomic-number results are described satisfactorily only by partial-wave calculations.

W. Lichtenberg; A. Przybylski; M. Scheer

1975-02-01T23:59:59.000Z

211

SPIRAL: JOINT RUNTIME AND ENERGY OPTIMIZATION OF LINEAR TRANSFORMS Marek Telgarsky, James C. Hoe, Jose M. F. Moura  

E-Print Network [OSTI]

Forbes Ave. Pittsburgh, PA 15232 ABSTRACT There is much interest into joint runtime and energy opti the optimiza- tion of energy and other joint runtime-energy optimization metrics. This research is supportedSPIRAL: JOINT RUNTIME AND ENERGY OPTIMIZATION OF LINEAR TRANSFORMS Marek Telgarsky, James C. Hoe

Moura, José

212

A diffusion-free and linear-energy-transfer-independent nanocomposite Fricke gel dosimeter  

E-Print Network [OSTI]

, Wako, Saitama 351-0198, Japan c Department of Nuclear Engineering and Management, Graduate School resonance imaging (MRI). This has pioneered modern gel dosimetry (Baldock et al., 2010; Schreiner, 2004

Ishikawa, Kenichi L.

213

A Theoretical Investigation of Decay and Energy Transfer Rates and Efficiencies Near Gold Nanospheres  

E-Print Network [OSTI]

We consider the effect of Au nanospheres of subwavelength sizes on the decay and energy transfer rates of quantum systems placed in the proximity of these nanospheres. We find that, for the sphere sizes considered in this contribution, the radiative decay rate is barely affected by the presence of the nanosphere, whereas the non-radiative decay rate is greatly enhanced due to energy transfer from the quantum system to the nanosphere, leading to a strong quenching of the emission of the quantum system. The emission wavelength of the quantum emitter and its intrinsic quantum yield play an important role and the impact of both has to be considered together when investigating their effect on the non-radiative decay rate. The energy transfer process from the emitter to the nanosphere has a complicated distance dependence, with a 1/r^6 regime, characteristic of the F\\"orster energy transfer mechanism, but also exhibiting other distance dependence regimes. In the case of a donor-acceptor pair in the presence of a Au...

Marocico, Cristian A; Bradley, A Louise

2015-01-01T23:59:59.000Z

214

Fo rster Excitation Energy Transfer in Peridinin-Chlorophyll-a-Protein Foske J. Kleima,* Eckhard Hofmann,  

E-Print Network [OSTI]

Amerongen* *Faculty of Sciences, Division of Physics and Astronomy and Institute for Condensed Matter). Singlet energy transfer from peridinin to Chl a occurs with an efficiency close to 100% (Song et al., 1976. The resolution is high enough to distinguish the x and y axes of the Chl a mole- cules, allowing a definition

van Stokkum, Ivo

215

Chaotic oscillation and random-number generation based on nanoscale optical-energy transfer  

E-Print Network [OSTI]

By using nanoscale energy-transfer dynamics and density matrix formalism, we demonstrate theoretically and numerically that chaotic oscillation and random-number generation occur in a nanoscale system. The physical system consists of a pair of quantum dots (QDs), with one QD smaller than the other, between which energy transfers via optical near-field interactions. When the system is pumped by continuous-wave radiation and incorporates a timing delay between two energy transfers within the system, it emits optical pulses. We refer to such QD pairs as nano-optical pulsers (NOPs). Irradiating an NOP with external periodic optical pulses causes the oscillating frequency of the NOP to synchronize with the external stimulus. We find that chaotic oscillation occurs in the NOP population when they are connected by an external time delay. Moreover, by evaluating the time-domain signals by statistical-test suites, we confirm that the signals are sufficiently random to qualify the system as a random-number generator (RNG). This study reveals that even relatively simple nanodevices that interact locally with each other through optical energy transfer at scales far below the wavelength of irradiating light can exhibit complex oscillatory dynamics. These findings are significant for applications such as ultrasmall RNGs.

Makoto Naruse; Song-Ju Kim; Masashi Aono; Hirokazu Hori; Motoichi Ohtsu

2014-12-19T23:59:59.000Z

216

Kinematically complete experiment on transfer excitation in intermediate-energy p+He collisions  

SciTech Connect (OSTI)

We have performed a kinematically complete experiment on transfer excitation in intermediate-energy proton-helium collisions. The differential cross sections were compared to double excitation data and a nonperturbative time-dependent calculation. This comparison reveals the importance of dynamic couplings between the motion of the heavy nuclei and electronic transitions and/or electron-electron correlation effects.

Hasan, A. [Physics Department and Laboratory for Atomic, Molecular, and Optical Research, University of Missouri-Rolla, Rolla, Missouri 65409 (United States); Department of Physics, UAE University, P.O. Box 17551, Alain, Abu Dhabi (United Arab Emirates); Tooke, B.; Schulz, M. [Physics Department and Laboratory for Atomic, Molecular, and Optical Research, University of Missouri-Rolla, Rolla, Missouri 65409 (United States); Zapukhlyak, M.; Kirchner, T. [Institut fuer Theoretische Physik, TU Clausthal, Leibnizstrasse 10, 38678 Clausthal-Zellerfeld (Germany)

2006-09-15T23:59:59.000Z

217

Single-molecule protein folding: Diffusion fluorescence resonance energy transfer studies  

E-Print Network [OSTI]

Single-molecule protein folding: Diffusion fluorescence resonance energy transfer studies for protein folding studies and has been extensively stud- ied, both experimentally (at the ensemble level concentration. It is shown that new infor- mation about different aspects of the protein folding reaction can

Croquette, Vincent

218

Physical Model for the Study of Mass and Energy Transfers in the Non-Saturated Layer of Soil Located Above a Solar Energy Storage  

Science Journals Connector (OSTI)

The aim of the project is to study the mass and energy transfers in a non-saturated layer of soil placed above a saturated layer.

J. C. Benet; G. Della-Valle; P. Jouanna…

1983-01-01T23:59:59.000Z

219

Comparison of the optoacoustic and Hg tracer methods for the study of energy-transfer processes in gas mixtures  

SciTech Connect (OSTI)

Rates of energy transfer from vibrationally excited SF/sub 6/ and pentafluorobenzene to argon in the gas phase have been studied by using the Hg tracer technique and time-resolved optoacoustics. These two techniques which rely on fundamentally different physical principles were found to give equivalent results. The implications for the study of energy-transfer processes in gas mixtures are discussed.

Wallington, T.J.; Braun, W.; Beck, K.M.; Gordon, R.J.

1988-06-30T23:59:59.000Z

220

Surface plasmon polariton mediated energy transfer in organic photovoltaic T. D. Heidel, J. K. Mapel, and M. Singh  

E-Print Network [OSTI]

Surface plasmon polariton mediated energy transfer in organic photovoltaic devices T. D. Heidel, J-based photovoltaic is boosted in the absorption gap between the phthalocyanine Q and Soret bands. Light absorption surface plasmon polaritons in an interfacial thin silver contact. The peak efficiency of energy transfer

Note: This page contains sample records for the topic "linear energy transfer" 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

Dimerization of wild-type and mutant epidermal growth factor receptors prevalent in glioblastoma multiforme, using bioluminescent resonance energy transfer  

Science Journals Connector (OSTI)

...bioluminescent resonance energy transfer Aaron Gajadhar...however, the dimerization status of mutant EGFRs remain...to study dimerization status of wt and mutant EGFRs...bioluminescence resonance energy transfer, or BRET. This...BRET signal will allow us to decipher the different...

Aaron Gajadhar and Abhijit Guha

2007-05-01T23:59:59.000Z

222

Implementation of dual-energy technique for virtual monochromatic and linearly mixed CBCTs  

SciTech Connect (OSTI)

Purpose: To implement dual-energy imaging technique for virtual monochromatic (VM) and linearly mixed (LM) cone beam CTs (CBCTs) and to demonstrate their potential applications in metal artifact reduction and contrast enhancement in image-guided radiation therapy (IGRT). Methods: A bench-top CBCT system was used to acquire 80 kVp and 150 kVp projections, with an additional 0.8 mm tin filtration. To implement the VM technique, these projections were first decomposed into acrylic and aluminum basis material projections to synthesize VM projections, which were then used to reconstruct VM CBCTs. The effect of VM CBCT on the metal artifact reduction was evaluated with an in-house titanium-BB phantom. The optimal VM energy to maximize contrast-to-noise ratio (CNR) for iodine contrast and minimize beam hardening in VM CBCT was determined using a water phantom containing two iodine concentrations. The LM technique was implemented by linearly combining the low-energy (80 kVp) and high-energy (150 kVp) CBCTs. The dose partitioning between low-energy and high-energy CBCTs was varied (20%, 40%, 60%, and 80% for low-energy) while keeping total dose approximately equal to single-energy CBCTs, measured using an ion chamber. Noise levels and CNRs for four tissue types were investigated for dual-energy LM CBCTs in comparison with single-energy CBCTs at 80, 100, 125, and 150 kVp. Results: The VM technique showed substantial reduction of metal artifacts at 100 keV with a 40% reduction in the background standard deviation compared to a 125 kVp single-energy scan of equal dose. The VM energy to maximize CNR for both iodine concentrations and minimize beam hardening in the metal-free object was 50 keV and 60 keV, respectively. The difference of average noise levels measured in the phantom background was 1.2% between dual-energy LM CBCTs and equivalent-dose single-energy CBCTs. CNR values in the LM CBCTs of any dose partitioning are better than those of 150 kVp single-energy CBCTs. The average CNR for four tissue types with 80% dose fraction at low-energy showed 9.0% and 4.1% improvement relative to 100 kVp and 125 kVp single-energy CBCTs, respectively. CNRs for low-contrast objects improved as dose partitioning was more heavily weighted toward low-energy (80 kVp) for LM CBCTs. Conclusions: Dual-energy CBCT imaging techniques were implemented to synthesize VM CBCT and LM CBCTs. VM CBCT was effective at achieving metal artifact reduction. Depending on the dose-partitioning scheme, LM CBCT demonstrated the potential to improve CNR for low contrast objects compared to single-energy CBCT acquired with equivalent dose.

Li Hao; Giles, William; Ren Lei; Bowsher, James; Yin Fangfang [Medical Physics Graduate Program, Duke University, Durham, North Carolina 27710 (United States); Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina 27710 (United States)

2012-10-15T23:59:59.000Z

223

Influence of Complex Exciton-Phonon Coupling on Optical Absorption and Energy Transfer of Quantum Aggregates  

E-Print Network [OSTI]

We present a theory that efficiently describes the quantum dynamics of an electronic excitation that is coupled to a continuous, highly structured phonon environment. Based on a stochastic approach to non-Markovian open quantum systems, we develop a dynamical framework that allows us to handle realistic systems where a fully quantum treatment is desired yet the usual approximation schemes fail. The capability of the method is demonstrated by calculating spectra and energy transfer dynamics of mesoscopic molecular aggregates, elucidating the transition from fully coherent to incoherent transfer.

Jan Roden; Alexander Eisfeld; Wolfgang Wolff; Walter T. Strunz

2009-11-04T23:59:59.000Z

224

Linear Relationship Between Weighted-Average Madelung and Density Functional Theory Energies for MgO Nanotubes  

E-Print Network [OSTI]

Energies for MgO Nanotubes Journal: The Journal of Physical Chemistry Manuscript ID: jp-2012-08041d.R1 Constants and Density Functional Theory Energies for MgO Nanotubes Mark D. Baker,*1 A. David Baker2 , Jane-average Madelung constants of MgO nanotubes correlate in an essentially perfectly linear way with cohesive energies

Hanusa, Christopher

225

DOE Releases EPRI Report on Benefits of Regional Coordination in Wind Energy Transfers  

Broader source: Energy.gov [DOE]

The Department of Energy (DOE) recently released a report finding that inter-regional cooperation can help lower the cost of transporting wind energy from windy areas in the Midwest and South-Central United States to areas with less wind generation capability in the Southeastern United States, improving the ability to meet our nation's electricity demand using clean resources. DOE awarded the Electric Power Research Institute (EPRI) and LCG Consulting an American Recovery and Reinvestment Act (ARRA) grant to evaluate the benefits of coordinating inter-regional transfers of wind energy.

226

Radiative Transfer in Interacting Media J.Kenneth Shultis  

E-Print Network [OSTI]

of nuclear energy. Today, radiative transport plays an important role in many other areas besides nuclear, and many others. 1.1 Radiative Transfer Regimes The transport of radiant energy through a medium falls shielding analyses, the radiative transfer equation is linear, and a wealth of numerical techniques exist

Shultis, J. Kenneth

227

Efficiency of energy transfer in a light-harvesting system under quantum coherence  

E-Print Network [OSTI]

We investigate the role of quantum coherence in the efficiency of excitation transfer in a ring-hub arrangement of interacting two-level systems, mimicking a light-harvesting antenna connected to a reaction center as it is found in natural photosynthetic systems. By using a quantum jump approach, we demonstrate that in the presence of quantum coherent energy transfer and energetic disorder, the efficiency of excitation transfer from the antenna to the reaction center depends intimately on the quantum superposition properties of the initial state. In particular, we find that efficiency is sensitive to symmetric and asymmetric superposition of states in the basis of localized excitations, indicating that initial state properties can be used as a efficiency control parameter at low temperatures.

Alexandra Olaya-Castro; Chiu Fan Lee; Francesca Fassioli Olsen; Neil F. Johnson

2007-08-08T23:59:59.000Z

228

Electrical damping of linear generators for wave energy converters—A review  

Science Journals Connector (OSTI)

Abstract The electrical damping of point-absorber wave energy converters is crucial to optimize the power output. Many circuit topologies have been proposed, but the possible increase in power absorption must be weighed against parameters such as cost, reliability and control system complexity. In this paper, the known electrical damping circuits are categorized, described and compared. The hydrodynamic damping of the buoy is covered, and how a linear generator can be used as a power take-off unit to apply a damping force. A qualitative comparison of the circuits is presented in the end. A more complex and costly power electronics system may be viable for wave energy converters (WECs) of large-scale power rating. However, for farm operation with small-scale WECs, a simpler and passive damping may be more suitable.

Rickard Ekström; Boel Ekergård; Mats Leijon

2015-01-01T23:59:59.000Z

229

Energy Transfer  

K-12 Energy Lesson Plans and Activities Web site (EERE)

1. Identify a closed system with consevative forces. 2. Identify relationships between the following variables:

230

Fluorescence spectrum characteristic of ethanol–water excimer and mechanism of resonance energy transfer  

Science Journals Connector (OSTI)

The steady-state fluorescence spectrum characteristic of ethanol–water excimer has been studied in this paper. By analysing the features of the sharp emission spectrum with fine structures in a shortwave band and the characteristics of the broad and featureless fluorescence peaks in the longwave band, one can conclude that the excimers are formed between the new ethanol–water cluster molecules in the excited state and the ground state through the interaction among different chromophores. The excitation spectra in the two fluorescence bands have been studied, and their emission mechanisms have been ascertained based on the energy transfer theory. Furthermore, the critical distance of the resonance energy transfer has been calculated.

Liu Ying; Song Chun-Yuan; Luo Xiao-Sen; Lu Jian; Ni Xiao-Wu

2007-01-01T23:59:59.000Z

231

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

232

Noise-assisted energy transfer in quantum networks and light-harvesting complexes  

E-Print Network [OSTI]

We provide physically intuitive mechanisms for the effect of noise on excitation energy transfer (EET) in networks. Using these mechanisms of dephasing-assisted transport (DAT) in a hybrid basis of both excitons and sites, we develop a detailed picture of how noise enables energy transfer with efficiencies well above $90%$ across the Fenna-Matthew-Olson (FMO) complex, a type of light harvesting molecule. We demonstrate explicitly how noise alters the pathways of energy transfer across the complex, suppressing ineffective pathways and facilitating direct ones to the reaction centre. We explain that the fundamental mechanisms underpinning DAT are expected to be robust with respect to the considered noise model but show that the specific details of the exciton-phonon coupling, which remain largely unknown in these type of complexes, and in particular the impact of non-Markovian effects, results in variations of dynamical features that should be amenable to experimental verification within current or planned technology. A detailed understanding of DAT in natural compounds should open up a new paradigm of `noise-engineering' by which EET can be optimized in artificial light-harvesting structures.

Alex W. Chin; Animesh Datta; Filippo Caruso; Susana F. Huelga; Martin B. Plenio

2009-10-21T23:59:59.000Z

233

Robust energy transfer mechanism and critically balanced turbulence via non-resonant triads in nonlinear wave systems  

E-Print Network [OSTI]

A robust energy transfer mechanism is found in nonlinear wave systems, which favours transfers towards modes interacting via non-resonant triads, applicable in meteorology, nonlinear optics and plasma wave turbulence. Transfer efficiency is maximal when the frequency mismatch of the non-resonant triad balances the system's nonlinear frequency: at intermediate levels of oscillation amplitudes an instability is triggered that explores unstable manifolds of periodic orbits, so turbulent cascades are most efficient at intermediate nonlinearity. Numerical simulations confirm analytical predictions.

Miguel D. Bustamante; Brenda Quinn

2013-09-02T23:59:59.000Z

234

US/China Energy and Environmental Technology Center (EETC) international business development and technology transfer  

SciTech Connect (OSTI)

Since January 1997, the US/China Energy and Environmental Technology Center (EETC) in Beijing has been jointly operated by Tulane University and Tsinghua University. EETC is established to encourage the adoption of technologies for energy production with improved environmental performance which are essential for supporting economic growth and managing the Global Warming and Climate Change issues. International cooperation is critical to insure the environmental and energy security on a global basis. For example, the US has acquired a great deal of useful experience in clean coal technology which has been demonstrated with major utilities in commercial operations. The adaption of, and the installation of, clean coal technology should be given high priority. Worldwide, the continuous exchange of information and technology between developed and developing nations relating to the current and future clean coal technologies is of great importance. Developed nations which possess environmental responsive technologies and financial resources should work closely with developing nations to facilitate technology transfer and trade of technologies. International cooperation will lower the cost of deploying clean coal technologies directed toward the clean production of energy. This paper presents the updated activities of EETC on facilitating technology transfer and promoting the clean use of coal to satisfy growing energy demand in China.

Hsieh, S.T. [Tulane Univ., New Orleans, LA (United States). US/China Inst.; Atwood, T. [Dept. of Energy, Washington, DC (United States); Qiu Daxiong [Tsinghua Univ., Beijing (China); Zhang Guocheng [State Science and Technology Commission, Beijing (China)

1997-12-31T23:59:59.000Z

235

Excitonic enhancement of nonradiative energy transfer to bulk silicon with the hybridization of cascaded quantum dots  

SciTech Connect (OSTI)

We report enhanced sensitization of silicon through nonradiative energy transfer (NRET) of the excitons in an energy-gradient structure composed of a cascaded bilayer of green- and red-emitting CdTe quantum dots (QDs) on bulk silicon. Here NRET dynamics were systematically investigated comparatively for the cascaded energy-gradient and mono-dispersed QD structures at room temperature. We show experimentally that NRET from the QD layer into silicon is enhanced by 40% in the case of an energy-gradient cascaded structure as compared to the mono-dispersed structures, which is in agreement with the theoretical analysis based on the excited state population-depopulation dynamics of the QDs.

Yeltik, Aydan; Guzelturk, Burak; Akhavan, Shahab [Department of Physics and Department of Electrical and Electronics Engineering, UNAM—Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800 (Turkey)] [Department of Physics and Department of Electrical and Electronics Engineering, UNAM—Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800 (Turkey); Ludwig Hernandez-Martinez, Pedro; Volkan Demir, Hilmi, E-mail: volkan@stanfordalumni.org [Department of Physics and Department of Electrical and Electronics Engineering, UNAM—Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800 (Turkey); Luminous Center of Excellence for Semiconductor Lighting and Displays, School of Electrical and Electronic Engineering and School of Physical and Mathematical Sciences, Nanyang Technological University, Nanyang Avenue, Singapore 639798 (Singapore)

2013-12-23T23:59:59.000Z

236

Enhanced Photoresponse in Solid-State Excitonic Solar Cells via Resonant Energy Transfer and Cascaded Charge Transfer from a Secondary Absorber  

Science Journals Connector (OSTI)

Förster resonant energy transfer from spiro-TBT to the near-infrared sensitizing dye TT1 was verified through a survey of the photoluminescence properties of the FRET pair including emission and excitation profiles and decay dynamics. ... with the dark current. ...

Kristina Driscoll; Junfeng Fang; Nicola Humphry-Baker; Toma?s Torres; Wilhelm T. S. Huck; Henry J. Snaith; Richard H. Friend

2010-11-09T23:59:59.000Z

237

Methods for associating or dissociating guest materials with a metal organic framework, systems for associating or dissociating guest materials within a series of metal organic frameworks, thermal energy transfer assemblies, and methods for transferring thermal energy  

DOE Patents [OSTI]

Methods for releasing associated guest materials from a metal organic framework are provided. Methods for associating guest materials with a metal organic framework are also provided. Methods are provided for selectively associating or dissociating guest materials with a metal organic framework. Systems for associating or dissociating guest materials within a series of metal organic frameworks are provided. Thermal energy transfer assemblies are provided. Methods for transferring thermal energy are also provided.

McGrail, B. Peter; Brown, Daryl R.; Thallapally, Praveen K.

2014-08-05T23:59:59.000Z

238

Assessing Risk in Costing High-energy Accelerators: from Existing Projects to the Future Linear Collider  

E-Print Network [OSTI]

High-energy accelerators are large projects funded by public money, developed over the years and constructed via major industrial contracts both in advanced technology and in more conventional domains such as civil engineering and infrastructure, for which they often constitute one-of markets. Assessing their cost, as well as the risk and uncertainty associated with this assessment is therefore an essential part of project preparation and a justified requirement by the funding agencies. Stemming from the experience with large circular colliders at CERN, LEP and LHC, as well as with the Main Injector, the Tevatron Collider Experiments and Accelerator Upgrades, and the NOvA Experiment at Fermilab, we discuss sources of cost variance and derive cost risk assessment methods applicable to the future linear collider, through its two technical approaches for ILC and CLIC. We also address disparities in cost risk assessment imposed by regional differences in regulations, procedures and practices.

Lebrun, Philippe

2010-01-01T23:59:59.000Z

239

Cross-border transfer of climate change mitigation technologies : the case of wind energy from Denmark and Germany to India  

E-Print Network [OSTI]

This research investigated the causal factors and processes of international development and diffusion of wind energy technology by examining private sector cross-border technology transfer from Denmark and Germany to India ...

Mizuno, Emi, Ph. D. Massachusetts Institute of Technology

2007-01-01T23:59:59.000Z

240

Photoinduced electron transfer and its applications—Study on photochemical solar energy storage and polymeric photorefractive materials  

Science Journals Connector (OSTI)

The applications of photoinduced electron transfer, one in solar energy storage and the other in polymeric photorefractive materials...N-vinylcarbazole), 2,4,7-trinitro-9-fluorenone and 4-(dicyanovinyl)-N,N-dieth...

Xue-Song Wang; Bao-Wen Zhang; Guang-Qian He…

1998-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "linear energy transfer" 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

Internal energy transfer phenomenon and light-emission properties of ?-LiAlO2 phosphor doped with Mn2+  

Science Journals Connector (OSTI)

?-LiAlO2:Mn2+...phosphor was synthesized using the cellulose-citric acid sol-gel method, and its light emission and energy transfer properties were investigated. Excitation and emission...2+...do...

Bai-Bin Wang; Chi-Fen Chang; Wein-Duo Yang

2013-07-01T23:59:59.000Z

242

Introduction Counterpropagating interactions Numerical methods Co-propagating interactions A result on energy transfer Solitary water wave interactions  

E-Print Network [OSTI]

on energy transfer Solitary water wave interactions Walter Craig Department of Mathematics & Statistics (energy loss) and S (amplitude change). Walter Craig McMaster University Solitary wave interactions #12 (energy loss) and S (amplitude change). Walter Craig McMaster University Solitary wave interactions #12

Craig, Walter

243

An Improved Bioluminescence Resonance Energy Transfer Strategy for Imaging Intracellular Events in Single Cells and Living Subjects  

Science Journals Connector (OSTI)

...technique is based on a nonradiative energy transfer between two fusion...bioluminescent moiety as an energy donor and the other protein a fluorescent moiety serving as the energy acceptor. To date, in most...reagent. Each transfection mix consisted of 1 mug of experimental...

Abhijit De; Andreas Markus Loening; and Sanjiv Sam Gambhir

2007-08-01T23:59:59.000Z

244

Performance of a concentrated photovoltaic energy system with static linear Fresnel lenses  

Science Journals Connector (OSTI)

A new type of greenhouse with linear Fresnel lenses in the cover performing as a concentrated photovoltaic (CPV) system is presented. The CPV system retains all direct solar radiation, while diffuse solar radiation passes through and enters into the greenhouse cultivation system. The removal of all direct radiation will block up to 77% of the solar energy from entering the greenhouse in summer, reducing the required cooling capacity by about a factor 4. This drastically reduce the need for cooling in the summer and reduce the use of screens or lime coating to reflect or block radiation. All of the direct radiation is concentrated by a factor of 25 on a photovoltaic/thermal (PV/T) module and converted to electrical and thermal (hot water) energy. The PV/T module is kept in position by a tracking system based on two electric motors and steel cables. The energy consumption of the tracking system, ca. 0.51 W m?2, is less than 2% of the generated electric power yield. A peak power of 38 W m?2 electrical output was measured at 792 W m?2 incoming radiation and a peak power of 170 W m?2 thermal output was measured at 630 W m?2 incoming radiation of. Incoming direct radiation resulted in a thermal yield of 56% and an electric yield of 11%: a combined efficiency of 67%. The annual electrical energy production of the prototype system is estimated to be 29 kW h m?2 and the thermal yield at 518 MJ m?2. The collected thermal energy can be stored and used for winter heating. The generated electrical energy can be supplied to the grid, extra cooling with a pad and fan system and/or a desalination system. The obtained results show a promising system for the lighting and temperature control of a greenhouse system and building roofs, providing simultaneous electricity and heat. It is shown that the energy contribution is sufficient for the heating demand of well-isolated greenhouses located in north European countries.

P.J. Sonneveld; G.L.A.M. Swinkels; B.A.J. van Tuijl; H.J.J. Janssen; J. Campen; G.P.A. Bot

2011-01-01T23:59:59.000Z

245

Event:Technology Transfer in Energy and Efficient Lighting to Combat  

Open Energy Info (EERE)

in Energy and Efficient Lighting to Combat in Energy and Efficient Lighting to Combat Climate Change Jump to: navigation, search Calendar.png Technology Transfer in Energy and Efficient Lighting to Combat Climate Change: on 2011/09/28 The objective of the workshop is to assess opportunities for transition to efficient lighting in the Middle East and North African region. In addition to detailed Country Lighting Assessments, UNEP will present a report on state of efficient lighting in the region by listing projects, activities and identifying obstacles and challenges facing the lighting sector. The workshop will further examine the economic and environmental benefits from shifting to efficient lighting. Space is limited so pre-registration is required. Please contact Abdul-Majeid Haddad, Regional Climate Change

246

Intramolecular energy transfer in a synthetic dendron-based light harvesting system  

Science Journals Connector (OSTI)

Abstract Single-molecule experiments based on Förster resonant energy transfer (FRET) or on single molecule absorption spectroscopy (SMA) are now capable of studying energy funneling, exciton blockade, singlet fission, and a variety of other processes that involve multiple photoactive groups interacting on a single molecular backbone. Here, we present synthesis and optical characterization of a new dendron functionalized with two green donor dyes (Cy3) and one red acceptor dye (Cy5) through flexible linkers. We describe in detail the synthesis of the conjugated network and the flexible dye coupling. Characterization of the dendron and of control molecules with fewer donors or no acceptor by ensemble absorption and emission spectroscopy shows that the system is capable of light harvesting, producing an intramolecular FRET signal from the acceptor greater than expected from a single donor. We also investigate intramolecular energy transfer upon UV excitation of the conjugated backbone. The photophysical behavior of this light harvesting dendron can be rationalized by a simple Förster/superexchange model. Simulations and scanning tunneling microscopy of single dendron molecules show that the dyes can fold over onto the dendron, creating a heterogeneous distribution of conformations suitable for single molecule studies of light harvesting.

Lea Nienhaus; Dustin E. Gross; Zheng Xue; Jeffrey S. Moore; Martin Gruebele

2014-01-01T23:59:59.000Z

247

Solar wind energy transfer regions inside the dayside magnetopause—I. Evidence for magnetosheath plasma penetration  

Science Journals Connector (OSTI)

PROGNOZ-7 high temporal resolution measurements of the ion composition and hot plasma distribution in the dayside high latitude boundary layer near noon have revealed that magnetosheath plasma may penetrate the dayside magnetopause and form high density, high ?, magnetosheath-like regions inside the magnetopause. We will from these measurements demonstrate that the magnetosheath injection regions most probably play an important role in transferring solar wind energy into the magnetosphere. The transfer regions are characterized by a strong perpendicular flow towards dawn or dusk (depending on local time) but are also observed to expand rapidly along the boundary layer field lines. This increased flow component transverse to the local magnetic field corresponds to a predominantly radial electric field of up to several mV m?1, which indicates that the injected magnetosheath plasma causes an enhanced polarization of the boundary layer. Polarization of the boundary layer can therefore be considered a result of a local MHD-process where magnetosheath plasma excess momentum is converted into electromagnetic energy (electric field), i.e. we have primarily an MHD-generator there. We state primarily because we also observe acceleration of “cold” ions inside the magnetopause as a result of this radial electric field. A few cases of polarity reversals suggest that the polarization is sometimes quite localized. The perhaps most significant finding is that the boundary layer is observed to be charged up to tens of kilovolts, a potential which may be highly variable depending on e.g. the presence of a momentum exchange by the energy transfer regions.

R. Lundin; E. Dubinin

1984-01-01T23:59:59.000Z

248

Development of an Ion-Sensor using Fluorescence Resonance Energy Transfer  

E-Print Network [OSTI]

A method is presented for the sensing of ions by determining the concentration of corresponding salts (KCl, NaCl, MgCl2, CaCl2, FeCl3, FeSO4, AlCl3) in water, based on Fluorescence resonance energy transfer (FRET) process. The principle of the proposed sensor is based on the change of FRET efficiency between two laser dyes Acriflavine and Rhodamine B in presence of different ions (K+, Na+, Mg2+, Ca2+, Fe2+, Fe3+, Al3+). Nanodimensional clay platelet laponite was used to enhance the efficiency of the sensor.

Dey, Dibyendu; Bhattacharjee, D; Hussain, Syed Arshad

2014-01-01T23:59:59.000Z

249

Nanometal Surface Energy Transfer in Optical Rulers, Breaking the FRET Barrier  

Science Journals Connector (OSTI)

Nanometal Surface Energy Transfer in Optical Rulers, Breaking the FRET Barrier ... For example, nucleo-protein assemblies with broad biomedical significance often involve a constellation of proteins, which individually and in concert induce both large scale topological changes within the DNA, and regulate the expression of adjacent genes. ... In fact, FRET is commonly written as kFRET = (1/?D)(R0/R).6 The Förster radius (R0) is a function of the oscillator strengths of the donor and acceptor molecules, their mutual energetic resonance, and the vector addition of their dipoles. ...

C. S. Yun; A. Javier; T. Jennings; M. Fisher; S. Hira; S. Peterson; B. Hopkins; N. O. Reich; G. F. Strouse

2005-02-11T23:59:59.000Z

250

The convergence of quantum-dot-mediated fluorescence resonance energy transfer and  

Science Journals Connector (OSTI)

We present a novel convergence of quantum-dot-mediated fluorescence resonance energy transfer (QD-FRET) and microfluidics, through which molecular interactions were precisely controlled and monitored using highly sensitive quantum-dot-mediated FRET. We demonstrate its potential in studying the kinetics of self-assembly of DNA polyplexes under laminar flow in real time with millisecond resolution. The integration of nanophotonics and microfluidics offers a powerful tool for elucidating the formation of polyelectrolyte polyplexes, which is expected to provide better control and synthesis of uniform and customizable polyplexes for future nucleic acid-based therapeutics.

Yi-Ping Ho; Hunter H Chen; Kam W Leong; Tza-Huei Wang

2009-01-01T23:59:59.000Z

251

Efficient energy transfer in light-harvesting systems, I: optimal temperature, reorganization energy, and spatial-  

E-Print Network [OSTI]

. Silbey1 Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, Massachusetts, 02139, USA. E-mails: jianshu@mit.edu; silbey@mit.edu Abstract. Understanding the mechanisms stages in the conversion of solar energy into chemical and other useful forms of energy for human

Cao, Jianshu

252

Minimal energy cost of thermodynamic information processes only with entanglement transfer  

E-Print Network [OSTI]

We present the minimal energy costs for the measurement and the information erase, using only the Helmholtz free energy and the entanglement of formation. The entanglement of formation appears in the form of difference which indicates the amount of entanglement transfer on the memory during the processes; the cost of the measurement is given by the entanglement gain, whereas the cost of the information erase is given by the loss of available entanglement. Putting together the present Letter and Rev. E 88, 042143 (2013), we can describe the violation and the restoration of the second law only in terms of the entanglement of formation; both of the excess of extracted work from thermodynamics with information process over the conventional second law and the total cost of the information process are given by the entanglement of formation, and the former is less than or equal to the latter.

Hiroyasu Tajima

2013-11-06T23:59:59.000Z

253

Visible light stimulating dual-wavelength emission and O vacancy involved energy transfer behavior in luminescence for coaxial nanocable arrays  

SciTech Connect (OSTI)

We report a strategy to investigate O vacancy (V{sub O}) involved energy transfer and dual-wavelength yellow emission in coaxial nanocable. By electric field deposition and subsequent sol-gel template approach, ZnO:Tb/Y{sub 2}O{sub 3}:Eu coaxial nanocable arrays are synthesized. After visible light excitation, system is promoted to O vacancy charge transfer state of V{sub O}(0/+). In the following cross relaxation, energy transfer from V{sub O} to the excitation energy level of Tb{sup 3+} in ZnO:Tb core area. While in Y{sub 2}O{sub 3}:Eu shell area, energy transfer to the excitation energy level of Eu{sup 3+}. Subsequently, dual-wavelength emission is observed. By constructing nanocable with dual-wavelength emission, yellow luminescence is obtained. Adjust doping concentration of Eu{sup 3+} or Tb{sup 3+} in the range of 0.01–0.05, chromaticity coordinates of ZnO:Tb/Y{sub 2}O{sub 3}:Eu nanocable stably stays at yellow region in color space except ZnO:Tb{sub 0.01}/Y{sub 2}O{sub 3}:Eu{sub 0.01}. As Vo states act as media in energy transfer process in nanocablers, visible light can stimulate dual-wavelength emissions. Yellow luminescent nanocable arrays will have great applications in light-emitting diode luminescence.

Yang, Lei, E-mail: nanoyang@qq.com [College of Materials Science and Engineering, Hunan University, Changsha 410082 (China); Hunan Province Key Laboratory for Spray Deposition Technology and Application, Hunan University, Changsha 410082 (China); Dong, Jiazhang; Jiang, Zhongcheng [College of Materials Science and Engineering, Hunan University, Changsha 410082 (China); Pan, Anlian; Zhuang, Xiujuan [Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, Hunan University, Changsha 410082 (China)

2014-06-14T23:59:59.000Z

254

Reconstitution Approach to Tune Spectral Features of Light Harvesting Complexes for Improved Light Absorption and Energy Transfer  

Science Journals Connector (OSTI)

Abstract Light harvesting complexes developed by living organisms render themselves as an excellent system for understanding basic physical and chemical processes behind the conversion of sunlight energy. Although light harvesting complexes are pretty robust, biochemical reconstitution and genetic modifications have proven the flexibility to tailor their absorption spectra and energy transfer. Importantly, the refolding of the protein and the exchanging of the pigment in micellar media results in very similar pigment arrangement within the native complexes. Here, we show reconstitution approaches with different pigments that have been carried out in PCP, LHCII, and LHI complexes. Monitoring on the spectral changes and energy transfer has also been described.

Heriyanto; Maciej Michalik; Tatas H.P. Brotosudarmo; Leenawaty Limantara; Leszek Fiedor

2014-01-01T23:59:59.000Z

255

Förster Resonance Energy Transfer Measurements Are Consistent with a Helical Bundle Model for Lipid-Free Apolipoprotein A-I  

Science Journals Connector (OSTI)

The molten globule will not exhibit this level of cooperativity since it is an ensemble of structures with different energies and different amounts of residual structure, even though they may share a common structural feature (37). ... In these two reports, multiple constructs containing a single acrylodan at different locations were used to measure energy transfer from the constellation of five tryptophans within the protein. ...

Christie G. Brouillette; Wen-Ji Dong; Zhengrong W. Yang; Marjorie J. Ray; Irina I. Protasevich; Herbert C. Cheung; Jeffrey A. Engler

2005-11-19T23:59:59.000Z

256

Study of low energy Ytterbium atom-ion charge transfer collisions using a surface-electrode trap  

E-Print Network [OSTI]

We demonstrate a new isotope-selective system to measure low energy charge transfer collisions between ytterbium ions and atoms in the range of collisional energy from 2.2x 10-5 eV to 4.3x 10-3 eV, corresponding to effective ...

Pruttivarasin, Thaned

2008-01-01T23:59:59.000Z

257

Bearing options, including design and testing, for direct drive linear generators in wave energy converters.  

E-Print Network [OSTI]

??The key focus of this research was to investigate the bearing options most suited to operation in a novel direct drive linear generator. This was… (more)

Caraher, Sarah

2011-01-01T23:59:59.000Z

258

Clean Firetube Boiler Waterside Heat Transfer Surfaces, Energy Tips: STEAM, Steam Tip Sheet #7 (Fact Sheet)  

SciTech Connect (OSTI)

A steam energy tip sheet for the Advanced Manufacturing Office (AMO). The prevention of scale formation in firetube boilers can result in substantial energy savings. Scale deposits occur when calcium, magnesium, and silica, commonly found in most water supplies, react to form a continuous layer of material on the waterside of the boiler heat exchange tubes. Scale creates a problem because it typically possesses a thermal conductivity, an order of magnitude less than the corresponding value for bare steel. Even thin layers of scale serve as an effective insulator and retard heat transfer. The result is overheating of boiler tube metal, tube failures, and loss of energy efficiency. Fuel consumption may increase by up to 5% in firetube boilers because of scale. The boilers steam production may be reduced if the firing rate cannot be increased to compensate for the decrease in combustion efficiency. Energy losses as a function of scale thickness and composition are given. Any scale in a boiler is undesirable. The best way to deal with scale is not to let it form in the first place. Prevent scale formation by: (1) Pretreating of boiler makeup water (using water softeners, demineralizers, and reverse osmosis to remove scale-forming minerals); (2) Injecting chemicals into the boiler feedwater; and (3) Adopting proper boiler blowdown practices.

Not Available

2012-04-01T23:59:59.000Z

259

Attractor local dimensionality, nonlinear energy transfers and finite-time instabilities in unstable dynamical systems with applications to two-dimensional fluid flows  

Science Journals Connector (OSTI)

...Attractor local dimensionality, nonlinear energy transfers and finite-time instabilities...relate its nonlinear dimensionality to energy exchanges between dynamical components...the attractor with the circulation of energy: (i) from the mean flow to the unstable...

2013-01-01T23:59:59.000Z

260

Triple Higgs boson production at the high-energy Photon Linear Collider in the Higgs triplet model  

Science Journals Connector (OSTI)

Besides the SM-like Higgs boson h, the Higgs triplet model (HTM) predicts the existence of charged and doubly charged Higgs bosons ( and ). In this letter, we focus on the study of the triple Higgs production in ?? collisions at the high-energy linear collider: and . We present the production cross-sections and the distributions of the various observables, i.e., the distributions of the energy and the transverse momenta of the SM-like Higgs boson and charged Higgs bosons. Our numerical results show that, with reasonable parameter values, the values of the cross-sections for two processes can reach the level of several tens of fb and hundreds of fb, respectively. Due to the small SM background, the possible signals of and might be detected via these processes in the future high-energy linear-collider experiments.

Jie-Fen Shen; Yan-Ping Bi

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "linear energy transfer" 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

Computational modeling of laser-plasma interactions: Pulse self-modulation and energy transfer between intersecting laser pulses  

Science Journals Connector (OSTI)

The nonlinear interaction of intense femtosecond laser pulses with a self-induced plasma channel in air and the energy transfer between two intersecting laser pulses were simulated using the finite-difference time-domain particle-in-cell method. Implementation of a simple numerical code enabled modeling of various phenomena, including pulse self-modulation in the spatiotemporal and spectral domains, conical emission, and energy transfer between two intersecting laser beams. The mechanism for energy transfer was found to be related to a plasma waveguide array induced by Moiré patterns of the interfering electric fields. The simulation results provide a persuasive replication and explanation of previous experimental results, when carried out under comparable physical conditions, and lead to prediction of others. This approach allows us to further examine the effect of the laser and plasma parameters on the simulation results and to investigate the underlying physics.

Rotem Kupfer; Boris Barmashenko; Ilana Bar

2013-07-17T23:59:59.000Z

262

Forster resonance energy transfer, absorption and emission spectra in multichromophoric systems: III. Exact stochastic path integral evaluation  

E-Print Network [OSTI]

A numerically exact path integral treatment of the absorption and emission spectra of open quantum systems is presented that requires only the straightforward solution of a stochastic differential equation. The approach converges rapidly enabling the calculation of spectra of large excitonic systems across the complete range of system parameters and for arbitrary bath spectral densities. With the numerically exact absorption and emission operators one can also immediately compute energy transfer rates using the multi-chromophoric Forster resonant energy transfer formalism. Benchmark calculations on the emission spectra of two level systems are presented demonstrating the efficacy of the stochastic approach. This is followed by calculations of the energy transfer rates between two weakly coupled dimer systems as a function of temperature and system-bath coupling strength. It is shown that the recently developed hybrid cumulant expansion is the only perturbative method capable of generating uniformly reliable e...

Moix, Jeremy; Cao, Jianshu

2015-01-01T23:59:59.000Z

263

An Energy-Efficient Algorithm For Conflict-Free AGV Routing On A Linear Path Layout  

E-Print Network [OSTI]

consumption will unavoidably become an important consideration for the AGV systems. The primary objective the energy, aiming to minimize energy consumption of the vehicles during routing. As the energy resource, to account for the energy consumption, we formulate a basic energy model for AGV routing, and the energy

Zeng, Jianyang "Michael"

264

An EnergyEfficient Algorithm For ConflictFree AGV Routing On A Linear Path Layout  

E-Print Network [OSTI]

consumption will unavoidably become an important consideration for the AGV systems. The primary objective the energy, aiming to minimize energy consumption of the vehicles during routing. As the energy resource, to account for the energy consumption, we formulate a basic energy model for AGV routing, and the energy

Zeng, Jianyang "Michael"

265

Two-wave mixing and energy transfer in Bi12SiO20 crystals: application to image amplification and vibration analysis  

Science Journals Connector (OSTI)

The energy transfer between two beams (signal and reference, respectively) writing a dynamic-volume hologram in photorefractive BSO crystals is applied to the image amplification of a...

Huignard, J P; Marrakchi, A

1981-01-01T23:59:59.000Z

266

Effect of adaptation to high light intensity on the kinetics of energy transfer from phycobilisomes to photosystem II in Anabaena cylindrica  

Science Journals Connector (OSTI)

Transfer efficiencies between phycobilisomes and photosystem II antenna chlorophylls were determined on membrane fragments isolated from low and high light adapted Anabaena cells. The observed increase in energy ...

E. Kaiseva; L. Zimányi; I. Laczkó

1988-12-01T23:59:59.000Z

267

Bearing options, including design and testing, for direct drive linear generators in wave energy converters   

E-Print Network [OSTI]

The key focus of this research was to investigate the bearing options most suited to operation in a novel direct drive linear generator. This was done through bearing comparisons, modelling and testing. It is fundamental ...

Caraher, Sarah

2011-11-22T23:59:59.000Z

268

Energy Department Announces Secretarial Determination of No Adverse Material Impact for Uranium Transfers  

Broader source: Energy.gov [DOE]

Transfers to Advance U.S. National Security Interests and Fund Cleanup at Portsmouth or Paducah Gaseous Diffusion Plants

269

Novel control of a permanent magnet linear generator for ocean wave energy applications.  

E-Print Network [OSTI]

??Wave energy conversion devices are a rapidly growing interest worldwide for the potential to harness a sustainable and renewable energy source. Due to the oscillatory… (more)

VanderMeulen, Aaron H.

2007-01-01T23:59:59.000Z

270

Novel design and implementation of a permanent magnet linear tubular generator for ocean wave energy conversion.  

E-Print Network [OSTI]

??The world’s energy consumption is growing at an alarming rate and the need for renewable energy is apparent now more than ever. Estimates have shown… (more)

Prudell, Joseph H.

2007-01-01T23:59:59.000Z

271

Molten Glass for Thermal Storage: Advanced Molten Glass for Heat Transfer and Thermal Energy Storage  

SciTech Connect (OSTI)

HEATS Project: Halotechnics is developing a high-temperature thermal energy storage system using a new thermal-storage and heat-transfer material: earth-abundant and low-melting-point molten glass. Heat storage materials are critical to the energy storage process. In solar thermal storage systems, heat can be stored in these materials during the day and released at night—when the sun is not out—to drive a turbine and produce electricity. In nuclear storage systems, heat can be stored in these materials at night and released to produce electricity during daytime peak-demand hours. Halotechnics new thermal storage material targets a price that is potentially cheaper than the molten salt used in most commercial solar thermal storage systems today. It is also extremely stable at temperatures up to 1200°C—hundreds of degrees hotter than the highest temperature molten salt can handle. Being able to function at high temperatures will significantly increase the efficiency of turning heat into electricity. Halotechnics is developing a scalable system to pump, heat, store, and discharge the molten glass. The company is leveraging technology used in the modern glass industry, which has decades of experience handling molten glass.

None

2012-01-01T23:59:59.000Z

272

Solar energy prediction using linear and non-linear regularization models: A study on AMS (American Meteorological Society) 2013–14 Solar Energy Prediction Contest  

Science Journals Connector (OSTI)

Abstract In 2013, American Meteorological Society Committees on AI (artificial intelligence) Applications organized a short-term solar energy prediction competition aiming at predicting total daily solar energy received at 98 solar farms based on the outputs of various weather patterns of a numerical weather prediction model. In this paper, a methodology to solve this problem has been explained and the performance of ordinary LSR (least-square regression), regularized LSR and ANN (artificial neural network) models has been compared. In order to improve the generalization capability of the models, more experiments like variable segmentation, subspace feature sampling and ensembling of models have been conducted. It is observed that model accuracy can be improved by proper selection of input data segments. Further improvements can be obtained by ensemble of forecasts of different models. It is observed that the performance of an ensemble of ANN and LSR models is the best among all the proposed models in this work. As far as the competition is concerned, Gradient Boosting Regression Tree has turned out to be the best algorithm. The proposed ensemble of ANN and LSR model is able to show a relative improvement of 7.63% and 39.99% as compared to benchmark Spline Interpolation and Gaussian Mixture Model respectively.

S.K. Aggarwal; L.M. Saini

2014-01-01T23:59:59.000Z

273

Laser-Energy Transfer and Enhancement of Plasma Waves and Electron Beams by Interfering High-Intensity Laser Pulses  

E-Print Network [OSTI]

Laser-Energy Transfer and Enhancement of Plasma Waves and Electron Beams by Interfering High-Intensity) The effects of interference due to crossed laser beams were studied experimentally in the high- intensity regime. Two ultrashort (400 fs), high-intensity (4 1017 and 1:6 1018 W=cm2) and 1 m wavelength laser

Umstadter, Donald

274

Examination of ChlorinBacteriochlorin Energy-transfer Dyads as Prototypes for Near-infrared Molecular Imaging Probes  

E-Print Network [OSTI]

Examination of Chlorin­Bacteriochlorin Energy-transfer Dyads as Prototypes for Near-infrared features across the red and near-infrared (NIR) regions, tunable excited-state lifetimes (10 ns absorption and efficient emission in the red or near-infrared (NIR) spectral region, (2) sharp absorption

Larson-Prior, Linda

275

Pump-Probe Polarization Anisotropy Study of Femtosecond Energy Transfer within the Photosynthetic Reaction Center of Rhodobacter sphaeroides R26  

E-Print Network [OSTI]

Pump-Probe Polarization Anisotropy Study of Femtosecond Energy Transfer within the Photosynthetic) in the photosynthetic reaction center has been time resolved with pump-probe polarization anisotropy measurements using artifacts from saturation and photoexcitation of incompletely relaxed reaction centers. The pump excitation

Lang, Matthew

276

A quasi-steady state model to predict attic heat transfer and energy savings in residences using radiant barriers  

E-Print Network [OSTI]

[10-14] for Oak Ridge National Laboratories (ORNL) has focused on comparing energy reduction on three experimental houses operated by ORNL. Their research has consisted of both summer and winter tests of radiant barriers. Radiant Barrier...A QUASI-STEADY STATE MODEL TO PREDICT ATTIC HEAT TRANSFER AND ENERGY SAVINGS IN RESIDENCES USING RADIANT BARRIERS A Thesis by DAVID WALTER WINIARSKI Submitted to the Office of Graduate Studies of Texas ARM University in partial fulfillment...

Winiarski, David Walter

2012-06-07T23:59:59.000Z

277

Evaluation of wave energy generation from buoy heave response based on linear generator concepts  

Science Journals Connector (OSTI)

Previous studies of linear generator power extraction from ocean waves have usually ignored the buoy heave dynamics and taken the linear generator movement to coincide with the wave motion. Here the actual buoy motion is first determined and then used to solve the coupled hydrodynamic and electromagnetic problem of electrical power generation for both regular and irregular waves. Several buoy sizes are modeled to exploit the buoys' natural frequency in an attempt to create a greater heave response for a given sea state. Power output ranging from 75 to 375?W is predicted for the dimensions chosen.

M. A. Stelzer; R. P. Joshi

2012-01-01T23:59:59.000Z

278

Detection of Listeria monocytogenes from a Model Food by Fluorescence Resonance Energy Transfer-Based PCR with an Asymmetric Fluorogenic Probe Set  

Science Journals Connector (OSTI)

...Proc. Natl. Acad. Sci. USA 88: 7276-7280. 11 Ivarsson...and detection of DNA based on energy transfer. Nucleic Acids Res...North Carolina 27695-7624, USA. | Evaluation Studies Journal...Probes Fluorescence Resonance Energy Transfer Fluorescent Dyes Heat-Shock...

Kai Koo; Lee-Ann Jaykus

2003-02-01T23:59:59.000Z

279

Surface-Energy-Assisted Perfect Transfer of Centimeter-Scale Monolayer and Few-Layer MoS2 Films onto Arbitrary Substrates  

Science Journals Connector (OSTI)

Surface-Energy-Assisted Perfect Transfer of Centimeter-Scale Monolayer and Few-Layer MoS2 Films onto Arbitrary Substrates ... The different surface energies can drive water molecules to penetrate underneath the film, and this is why our process is termed surface-energy-assisted transfer. ... While the water may have a natural tendency to penetrate between the MoS2 film and the substrate due to different surface energies, the penetration actually cannot start by itself. ...

Alper Gurarslan; Yifei Yu; Liqin Su; Yiling Yu; Francisco Suarez; Shanshan Yao; Yong Zhu; Mehmet Ozturk; Yong Zhang; Linyou Cao

2014-10-27T23:59:59.000Z

280

Improving the energy efficiency of sparse linear system solvers on multicore and manycore systems  

Science Journals Connector (OSTI)

...impacting their performance. high performance computing|energy efficiency|sparse...about the energy draw by high performance computing (HPC) facilities, the...new metric for ranking high performance computing systems. Sandia report...

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "linear energy transfer" 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

Improving the energy efficiency of sparse linear system solvers on multicore and manycore systems  

Science Journals Connector (OSTI)

...Technologies for power measurement A common approach...measuring power and energy consumption is...the power supply unit (PSU) of the...Alternatively, the measurement point can be inside...obtained from the energy measured during...

2014-01-01T23:59:59.000Z

282

Power-law Behavior of Strings Scattered from Domain-wall at High Energies and Breakdown of their Linear Relations  

E-Print Network [OSTI]

In contrast to the common wisdom, we discover that, instead of the exponential fall-off of the form factors with Regge-pole structure, the high-energy scattering amplitudes of string scattered from Domain-wall behave as power-law with Regge-pole structure. This is to be compared with the well-known power-law form factors without Regge-pole structure of the D-instanton scatterings. This discovery makes Domain-wall scatterings an unique example of a hybrid of string and field theory scatterings. The calculation is done for bosonic string scatterings of arbitrary massive string states from D-24 brane. Moreover, we discover that the usual linear relations of high-energy string scattering amplitudes at each fixed mass level break down for the Domain-wall scatterings. This result gives a strong evidence that the existence of the infinite linear relations, or stringy symmetries, of high-energy string scattering amplitudes is responsible for the softer, exponential fall-off high-energy string scatterings than the power-law field theory scatterings.

Chuan Tsung Chan; Jen-Chi Lee; Yi Yang

2006-10-19T23:59:59.000Z

283

Electron-Transfer Collisions of Low-Energy Multicharged Nitrogen-Ions with H-2 and N-2  

E-Print Network [OSTI]

PHYSICAL REVIEW A VOLUME 36, NUMBER 9 NOVEMBER 1, 1987 Electron-transfer collisions of low-energy multicharged nitrogen ions with H2 and N2 Hua-Ying Wang and D. A. Church Department of Physics, Texas A&M University, College Station, Texas 77843... collision provides a direct and valuable test of a recent calculation 36 4261 1987 The American Physical Society 4262 HUA-YING WANG AND P. A. CHURCH 36 by Gargaud and Mccarroll, ' and the other measure- ments provide insight into the electron transfer...

Wang, H. Y.; Church, David A.

1987-01-01T23:59:59.000Z

284

Trace species detection: Spectroscopy and molecular energy transfer at high temperature  

SciTech Connect (OSTI)

Monitoring the concentration of trace species such as atomic and molecular free radicals is essential in forming predictive models of combustion processes. LIF-based techniques have the necessary sensitivity for concentration and temperature measurements but have limited accuracy due to collisional quenching in combustion applications. The goal of this program is to use spectroscopic and kinetic measurements to quantify nonradiative and collisional effects on LIF signals and to develop new background-free alternatives to LIF. The authors have measured the natural linewidth of several OH A-X (3,0) rotational transitions to determine predissociation lifetimes in the upper state, which were presumed to be short compared to quenching lifetimes, and as a result, quantitative predictions about the applicability of predissociation fluorescence methods at high pressures are made. The authors are investigating collisional energy transfer in the A-state of NO. Quenching rates which enable direct corrections to NO LIF quantum yields at high temperature were calculations. These quenching rates are now being used in studies of turbulence/chemistry interactions. The authors have measured the electric dipole moment {mu} of excited-state NO using Stark quantum-beat spectroscopy. {mu} is an essential input to a harpoon model which predicts quenching efficiencies for NO (A) by a variety of combustion-related species. The authors are developing new coherent multiphoton techniques for measurements of atomic hydrogen concentration in laboratory flames to avoid the quenching problems associated with previous multiphoton LIF schemes.

Gray, J.A. [Sandia National Laboratories, Livermore, CA (United States)

1993-12-01T23:59:59.000Z

285

WSDE Change or Transfer a Water Right Forms | Open Energy Information  

Open Energy Info (EERE)

or Transfer a Water Right FormsLegal Abstract The Washington State Department of Ecology provides various forms and publications related to the processes for changing or...

286

Mitigation of cross-beam energy transfer: Implication of two-state focal zooming on OMEGA  

SciTech Connect (OSTI)

Cross-beam energy transfer (CBET) during OMEGA low-adiabat cryogenic experiments reduces the hydrodynamic efficiency by ?35%, which lowers the calculated one-dimensional (1-D) yield by a factor of 7. CBET can be mitigated by reducing the diameter of the laser beams relative to the target diameter. Reducing the diameter of the laser beams by 30%, after a sufficient conduction zone has been generated (two-state zooming), is predicted to maintain low-mode uniformity while recovering 90% of the kinetic energy lost to CBET. A radially varying phase plate is proposed to implement two-state zooming on OMEGA. A beam propagating through the central half-diameter of the phase plate will produce a large spot, while a beam propagating through the outer annular region of the phase plate will produce a narrower spot. To generate the required two-state near-field laser-beam profile, a picket driver with smoothing by spectral dispersion (SSD) would pass through an apodizer, forming a beam of half the standard diameter. A second main-pulse driver would co-propagate without SSD through its own apodizer, forming a full-diameter annular beam. Hydrodynamic simulations, using the designed laser spots produced by the proposed zooming scheme on OMEGA, show that implementing zooming will increase the implosion velocity by 25% resulting in a 4.5× increase in the 1-D neutron yield. Demonstrating zooming on OMEGA would validate a viable direct-drive CBET mitigation scheme and help establish a pathway to hydrodynamically equivalent direct-drive–ignition implosions by increasing the ablation pressure (1.6×), which will allow for more stable implosions at ignition-relevant velocities.

Froula, D. H.; Kessler, T. J.; Igumenshchev, I. V.; Betti, R.; Goncharov, V. N.; Huang, H.; Hu, S. X.; Hill, E.; Kelly, J. H.; Meyerhofer, D. D.; Shvydky, A.; Zuegel, J. D. [Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623-1299 (United States)] [Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623-1299 (United States)

2013-08-15T23:59:59.000Z

287

Technology Transfer  

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

Energy Efficiency & Renewable and Energy - Commercialization Energy Efficiency & Renewable and Energy - Commercialization Deployment SBIR/STTR - Small Business Innovation Research and Small Business Technology Transfer USEFUL LINKS Contract Opportunities: FBO.gov FedConnect.net Grant Opportunities DOE Organization Chart Association of University Technology Managers (AUTM) Federal Laboratory Consortium (FLC) Feedback Contact us about Tech Transfer: Mary.McManmon@science.doe.gov Mary McManmon, 202-586-3509 link to Adobe PDF Reader link to Adobe Flash player Licensing Guide and Sample License The Technology Transfer Working Group (TTWG), made up of representatives from each DOE Laboratory and Facility, recently created a Licensing Guide and Sample License [762-KB PDF]. The Guide will serve to provide a general understanding of typical contract terms and provisions to help reduce both

288

Heat Transfer Fluids for Solar Water Heating Systems | Department of Energy  

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

Heat Transfer Fluids for Solar Water Heating Systems Heat Transfer Fluids for Solar Water Heating Systems Heat Transfer Fluids for Solar Water Heating Systems May 16, 2013 - 3:02pm Addthis Illustration of a solar water heater. Illustration of a solar water heater. Heat-transfer fluids carry heat through solar collectors and a heat exchanger to the heat storage tanks in solar water heating systems. When selecting a heat-transfer fluid, you and your solar heating contractor should consider the following criteria: Coefficient of expansion - the fractional change in length (or sometimes in volume, when specified) of a material for a unit change in temperature Viscosity - resistance of a liquid to sheer forces (and hence to flow) Thermal capacity - the ability of matter to store heat Freezing point - the temperature below which a liquid turns into a

289

An Efficient Quantum Jump Method for Coherent Energy Transfer Dynamics in Photosynthetic Systems under the Influence of Laser Fields  

E-Print Network [OSTI]

We present a non-Markovian quantum jump approach for simulating coherent energy transfer dynamics in molecular systems in the presence of laser fields. By combining a coherent modified Redfield theory (CMRT) and a non-Markovian quantum jump (NMQJ) method, this new approach inherits the broad-range validity from the CMRT and highly efficient propagation from the NMQJ. To implement NMQJ propagation of CMRT, we show that the CMRT master equation can be casted into a generalized Lindblad form. Moreover, we extend the NMQJ approach to treat time-dependent Hamiltonian, enabling the description of excitonic systems under coherent laser fields. As a benchmark of the validity of this new method, we show that the CMRT-NMQJ method accurately describes the energy transfer dynamics in a prototypical photosynthetic complex. Finally, we apply this new approach to simulate the quantum dynamics of a dimer system coherently excited to coupled single-excitation states under the influence of laser fields, which allows us to investigate the interplay between the photoexcitation process and ultrafast energy transfer dynamics in the system. We demonstrate that laser-field parameters significantly affect coherence dynamics of photoexcitations in excitonic systems, which indicates that the photoexcitation process must be explicitly considered in order to properly describe photon-induced dynamics in photosynthetic systems. This work should provide a valuable tool for efficient simulations of coherent control of energy flow in photosynthetic systems and artificial optoelectronic materials.

Qing Ai; Yuan-Jia Fan; Bih-Yaw Jin; Yuan-Chung Cheng

2014-04-19T23:59:59.000Z

290

Weak lensing predictions for coupled dark energy cosmologies at non-linear scales  

Science Journals Connector (OSTI)

......models, for forthcoming ground-based [such as Dark Energy Survey (DES)] and space-based (Euclid) weak...lensing (WL) surveys - both a ground-based survey similar to the Dark Energy Survey (DES)1 and a space-based survey, i.e......

Emma Beynon; Marco Baldi; David J. Bacon; Kazuya Koyama; Cristiano Sabiu

2012-06-01T23:59:59.000Z

291

Human In vivo Dose-Response to Controlled, Low-Dose Low Linear Energy Transfer Ionizing Radiation Exposure  

Science Journals Connector (OSTI)

...format from the National Center for Biotechnology Information...most peoples lives by industrial exposures and medical...California Davis Cancer Center, UCDHS. The authors...implications for risk assessment in both therapeutic...California Davis Cancer Center, Sacramento, 95817...

Zelanna Goldberg; David M. Rocke; Chad Schwietert; Susanne R. Berglund; Alison Santana; Angela Jones; Jörg Lehmann; Robin Stern; Ruixiao Lu; and Christine Hartmann Siantar

2006-06-15T23:59:59.000Z

292

Tunable blue–green emission phosphor Ca2PO4Cl:Ce3+, Tb3+: Luminescence and energy transfer  

Science Journals Connector (OSTI)

Abstract A series of tunable emission phosphors Ca2PO4Cl:Ce3+, Tb3+ are synthesized by a high temperature solid-state method. The emitting color of Ca2PO4Cl:Ce3+, Tb3+ can be adjusted from blue to green with increasing the Tb3+ doping content. The energy transfer from Ce3+ to Tb3+ in Ca2PO4Cl has been validated, and proved to be a resonant type via a dipole–dipole interaction. The critical distance of energy transfer is calculated by the concentration quenching method, and about 1.77 nm. Ca2PO4Cl:Ce3+, Tb3+ has a broad excitation band in the near ultraviolet range, and produces green emission, therefore, it may have potential application as near ultraviolet convertible phosphor for white light emitting diodes.

Panlai Li; Zhijun Wang; Zhiping Yang; Qinglin Guo

2014-01-01T23:59:59.000Z

293

Direct Observation of Optically Forbidden Energy Transfer between CuCl Quantum Cubes via Near-Field Optical Spectroscopy  

Science Journals Connector (OSTI)

We report, for the first time, evidence of near-field energy transfer among CuCl quantum cubes using an ultrahigh-resolution near-field optical microscopy and spectroscopy in the near UV region at 15 K. The sample was high-density CuCl quantum cubes embedded in a NaCl matrix. Measured spatial distributions of the luminescence intensities from 4.6-nm and 6.3-nm quantum cubes clearly established anticorrelation features. This is thought to be a manifestation of the energy transfer from the lowest state of exciton in 4.6-nm quantum cubes to the first dipole-forbidden excited state of exciton in 6.3-nm quantum cubes, which is attributed to the resonant optical near-field interaction.

Tadashi Kawazoe; Kiyoshi Kobayashi; Jungshik Lim; Yoshihito Narita; Motoichi Ohtsu

2002-01-25T23:59:59.000Z

294

Kinetics of Cdc42 Membrane Extraction by Rho-GDI Monitored by Real-Time Fluorescence Resonance Energy Transfer  

Science Journals Connector (OSTI)

Kinetics of Cdc42 Membrane Extraction by Rho-GDI Monitored by Real-Time Fluorescence Resonance Energy Transfer† ... This assay enabled us to directly monitor the (GDI-induced) release of Cdc42 from membranes. ... Specifically, we propose that the GDI first binds rapidly to membrane-associated Cdc42 and then a slower isomerization occurs which represents the rate-limiting step for the dissociation of the Cdc42?RhoGDI complex from membranes. ...

Tyzoon K. Nomanbhoy; Jon W. Erickson; Richard A. Cerione

1999-01-16T23:59:59.000Z

295

Unusual intrinsic luminescence of the host and energy transfer process in YVO{sub 4}:Er{sup 3+} phosphors  

SciTech Connect (OSTI)

YVO{sub 4}:Er{sup 3+} phosphors were prepared by solid state reaction method. The X-ray diffraction results testify the pure tetragonal YVO{sub 4} crystalline phase. The emission spectra of the samples show the obvious intrinsic luminescence of the hosts even though the concentration of the dopants has reached nominal 6 mol%, which is unusual since it is believed that the energy transferring from VO{sub 4}{sup 3-} to rare-earth ions occurs efficiently, thus the intrinsic luminescence of the host disappears when the concentration of the dopants is higher than {approx}1 mol%. The comparison of the photoluminescence excited at 320 nm (the absorption of vanadate host) and 380, 490, 525 or 532 nm (the absorption of erbium ions) in visible and infrared range has revealed that energy transfer process has occurred in the system. The study of decay times has revealed that the energy transfer efficiency of the doped YVO{sub 4}:Er samples is very low. The low efficiency might be one important reason for the unusual intrinsic emission of the host.

Zhou Xianju, E-mail: zhouxj@cqupt.edu.cn [College of Mathematics and Physics, Chongqing University of Post and Telecommunications, Chongqing 400065 (China); Zhao Liang; Feng Qiaochun [College of Mathematics and Physics, Chongqing University of Post and Telecommunications, Chongqing 400065 (China); Wei Xiantao [Physics Department, University of Science and Technology of China, Hefei 230026 (China); Duan Changkui [College of Mathematics and Physics, Chongqing University of Post and Telecommunications, Chongqing 400065 (China)

2009-10-15T23:59:59.000Z

296

High-performance solution of hierarchical equations of motions for studying energy-transfer in light-harvesting complexes  

E-Print Network [OSTI]

Excitonic models of light-harvesting complexes, where the vibrational degrees of freedom are treated as a bath, are commonly used to describe the motion of the electronic excitation through a molecule. Recent experiments point toward the possibility of memory effects in this process and require to consider time non-local propagation techniques. The hierarchical equations of motion (HEOM) were proposed by Ishizaki and Fleming to describe the site-dependent reorganization dynamics of protein environments (J. Chem. Phys., 130, p. 234111, 2009), which plays a significant role in photosynthetic electronic energy transfer. HEOM are often used as a reference for other approximate methods, but have been implemented only for small systems due to their adverse computational scaling with the system size. Here, we show that HEOM are also solvable for larger systems, since the underlying algorithm is ideally suited for the usage of graphics processing units (GPU). The tremendous reduction in computational time due to the GPU allows us to perform a systematic study of the energy-transfer efficiency in the Fenna-Matthews-Olson (FMO) light-harvesting complex at physiological temperature under full consideration of memory-effects. We find that approximative methods differ qualitatively and quantitatively from the HEOM results and discuss the importance of finite temperature to achieve high energy-transfer efficiencies.

Christoph Kreisbeck; Tobias Kramer; Mirta Rodriguez; Birgit Hein

2010-12-20T23:59:59.000Z

297

NREL: Technology Transfer - NREL, Collaborators Complete Gearbox...  

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

technical innovation within the global wind energy industry. Printable Version Technology Transfer Home About Technology Transfer Technology Partnership Agreements Licensing...

298

GRR/Section 19-TX-d - Transfer of Surface Water Right | Open Energy  

Open Energy Info (EERE)

19-TX-d - Transfer of Surface Water Right 19-TX-d - Transfer of Surface Water Right < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 19-TX-d - Transfer of Surface Water Right 19TXDTransferOfWaterRight.pdf Click to View Fullscreen Contact Agencies Texas Commission on Environmental Quality Regulations & Policies Tex. Water Code § 11 30 TAC 297.81 30 TAC 297.82 30 TAC 297.83 Triggers None specified Click "Edit With Form" above to add content 19TXDTransferOfWaterRight.pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Flowchart Narrative Texas water law allows surface water rights to be transferred from one party to another. (Tex. Water Code § 11)

299

GRR/Section 19-WA-c - Transfer or Change of Water Right | Open Energy  

Open Energy Info (EERE)

9-WA-c - Transfer or Change of Water Right 9-WA-c - Transfer or Change of Water Right < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 19-WA-c - Transfer or Change of Water Right 19-WA-c - Transfer or Change of Water Right.pdf Click to View Fullscreen Contact Agencies Washington State Department of Ecology Regulations & Policies Revised Code of Washington 90.03.380 Revised Code of Washington 90.44.100 Revised Code of Washington Chapter 90.80 Triggers None specified Much of Washington's public waters have been accounted for through water right claims, permits, or certificates. As a result, many individuals seeking water rights try to acquire existing water rights already in use or change the use of a current water right they already hold. Certain elements

300

Energy Transfer via Solar Wind Driven Ultra Low Frequency Waves in the Earth's Magnetosphere  

E-Print Network [OSTI]

many pathways through which solar wind energy can drive wavemany pathways through which solar wind energy can drive wave

Hartinger, Michael David

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "linear energy transfer" 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

Dichotomy of hot electron relaxation and delocalized polarons for optimal energy transfer in a model organic donor-acceptor interface  

E-Print Network [OSTI]

Charge separation at donor-acceptor interfaces is a complex process that can be strongly limited by the combined action of phonon-induced relaxation and Coulomb potential binding for an electron/hole pair. We propose a fully quantum microscopic approach to this problem, and show that molecular vibrations modulate the trapping probability in a non-monotonous fashion as a function of injection energy, due to polaron formation. This mechanism should control sensitively the efficiency of energy transfer in photovoltaic organic molecules, and bridge the gap between several current conflicting theories.

Bera, Soumya; Fratini, Simone; Ciuchi, Sergio; Florens, Serge

2014-01-01T23:59:59.000Z

302

Magnetic Energy and Helicity Budgets in the Active-Region Solar Corona. I. Linear Force-Free Approximation  

E-Print Network [OSTI]

We self-consistently derive the magnetic energy and relative magnetic helicity budgets of a three-dimensional linear force-free magnetic structure rooted in a lower boundary plane. For the potential magnetic energy we derive a general expression that gives results practically equivalent to those of the magnetic Virial theorem. All magnetic energy and helicity budgets are formulated in terms of surface integrals applied to the lower boundary, thus avoiding computationally intensive three-dimensional magnetic field extrapolations. We analytically and numerically connect our derivations with classical expressions for the magnetic energy and helicity, thus presenting a so-far lacking unified treatment of the energy/helicity budgets in the constant-alpha approximation. Applying our derivations to photospheric vector magnetograms of an eruptive and a noneruptive solar active regions, we find that the most profound quantitative difference between these regions lies in the estimated free magnetic energy and relative magnetic helicity budgets. If this result is verified with a large number of active regions, it will advance our understanding of solar eruptive phenomena. We also find that the constant-alpha approximation gives rise to large uncertainties in the calculation of the free magnetic energy and the relative magnetic helicity. Therefore, care must be exercised when this approximation is applied to photospheric magnetic field observations. Despite its shortcomings, the constant-alpha approximation is adopted here because this study will form the basis of a comprehensive nonlinear force-free description of the energetics and helicity in the active-region solar corona, which is our ultimate objective.

M. K. Georgoulis; Barry J. LaBonte

2007-06-27T23:59:59.000Z

303

Solar wind energy transfer regions inside the dayside magnetopause—II. Evidence for an MHD generator process  

Science Journals Connector (OSTI)

In this paper a quantitative analysis of magnetosheath injection regions observed by PROGNOZ-7 in the dayside high latitude boundary layer is performed. Particular emphasis is laid on describing the consequences of the observed excess transverse momentum of solar wind ions (H+ and He2+) as compared to the magnetospheric ions (e.g. He+ and O+) in the magnetosheath injection regions, hereafter referred to as energy transfer regions. An important result of this study is that the observed excess drift velocity of the solar wind ions as compared to the magnetospheric ions can be interpreted as a negative inertia current being present in the boundary layer. This means that the inertia current goes against the local electric field and that particle kinetic energy is converted into electric energy there. The dayside high-latitude boundary layer therefore constitutes a voltage generator (at least with respect to the injected magnetosheath plasma). The MHD-theory predicts a strong coupling of the energy transfer process in the boundary layer and the ionosphere, both regions being connected by field aligned currents. The rate of decay of the inertia current in the injected plasma element is in the range of a few minutes, a value which is directly proportional to the ionospheric resistance. By taking into account both the Hall and the Pedersen conductivities in the ionosphere, the theory also predicts a strong coupling between ionospheric East/West and North/South currents. A considerable part of the inertia current may actually flow in the tangential (East/West) direction due to this coupling. Thus, a consequence of the boundary layer energy transfer process is that it may generate currents, powering other magnetospheric plasma processes, down to ionospheric heights.

R. Lundin

1984-01-01T23:59:59.000Z

304

Distribution of Four-Momentum Transfer in Multiple Meson Productions by High Energy Muons  

Science Journals Connector (OSTI)

......Multiple Meson Productions by High Energy Muons S. Higashi T. Kitamura Y. Mishima...Multiple Meson Productions by High Energy Muons S. Higashi, T. Kitamura, Y...production. Provided that the high energy muon-nucleon inter- actions occur......

S. Higashi; T. Kitamura; Y. Mishima; S. Miyamoto; H. Shibata; Y. Watase; K. Daiyasu; K. Kobayakawa; T. Murota; T. Nakano

1964-01-01T23:59:59.000Z

305

Heat Transfer Behaviors of Thermal Energy Storages for High Temperature Solar Systems  

Science Journals Connector (OSTI)

Solar energy is an important alternative energy source that will likely be utilized in ... One main limiting factor in the application of solar energy is its cyclic time dependence. Therefore, solar systems requi...

A. Andreozzi; B. Buonomo; O. Manca…

2013-01-01T23:59:59.000Z

306

Energy Transfer via Solar Wind Driven Ultra Low Frequency Waves in the Earth's Magnetosphere  

E-Print Network [OSTI]

on how various energy sources from the solar wind ultimatelymodes. The solar wind is an important energy source for ULFmodes. The solar wind is an important energy source for ULF

Hartinger, Michael David

2012-01-01T23:59:59.000Z

307

Asian and Pacific Centre for Transfer of Technology (APCTT) | Open Energy  

Open Energy Info (EERE)

and Pacific Centre for Transfer of Technology (APCTT) and Pacific Centre for Transfer of Technology (APCTT) Jump to: navigation, search Name Asian and Pacific Centre for Transfer of Technology (APCTT) Address Qutab Institutional Area, India Place India Coordinates 28.5384902°, 77.1844619° 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":28.5384902,"lon":77.1844619,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

308

How to avoid turning the blue planet into a red one Challenge: Solve a complex, multi-variable, highly-coupled, non-linear energy equation  

E-Print Network [OSTI]

-variable, highly-coupled, non-linear energy equation Opportunity: A sustainable set of solutions that balance human, Airplanes, Electrification, Nuclear Energy,Transistor, Integrated Circuits, Fiber Optic CommunicationHow to avoid turning the blue planet into a red one Challenge: Solve a complex, multi

Beex, A. A. "Louis"

309

Quantification of energy transfer processes in LiLa9(SiO4)6O2:Er3+/Yb3+ under selective Er3+ excitation  

Science Journals Connector (OSTI)

The energy transfer mechanisms between Er3+ and Yb3+ ions have been investigated in LiLa9(SiO4)6O2 under selective...

Marin-Dobrincic, Martina; García-Sevillano, Jorge; Bettinelli, Marco; Piccinelli, Fabio; Cantelar, Eugenio; Cussó, Fernando

2014-01-01T23:59:59.000Z

310

Coefficients of interphase distribution and Gibbs energy of the transfer of nicotinic acid from water into aqueous solutions of ethanol and dimethylsulfoxide  

Science Journals Connector (OSTI)

Coefficients of the interphase distribution of nicotinic acid are determined in aqueous solution systems of ethanol-hexane and DMSO-hexane at 25.0 ... . They are used to calculate the Gibbs energy of the transfer...

K. V. Grazhdan; G. A. Gamov; S. V. Dushina…

2012-11-01T23:59:59.000Z

311

Advanced Thermal Energy Storage Heat Transfer Study with Use of Comsol and Matlab.  

E-Print Network [OSTI]

?? The interest in storing latent energy in phase change materials has risen over the last years as the need grows for more energy efficient… (more)

Johansson, Petter

2011-01-01T23:59:59.000Z

312

Energy Transfer via Solar Wind Driven Ultra Low Frequency Waves in the Earth's Magnetosphere  

E-Print Network [OSTI]

spectral density comparison Wave polarization and energywind to various sinks of wave energy in the magnetosphere.magnetosphere (where wave energy can exit the magnetosphere

Hartinger, Michael David

2012-01-01T23:59:59.000Z

313

Energy Transfer via Solar Wind Driven Ultra Low Frequency Waves in the Earth's Magnetosphere  

E-Print Network [OSTI]

spectral density comparison Wave polarization and energywind to various sinks of wave energy in the magnetosphere.a source or sink of wave energy (Southwood et al. , 1969).

Hartinger, Michael David

2012-01-01T23:59:59.000Z

314

6th International Symposium on Multiphase Flow, Heat Mass Transfer and Energy Conversion Xi'an, China, 11-15 July 2009  

E-Print Network [OSTI]

6th International Symposium on Multiphase Flow, Heat Mass Transfer and Energy Conversion Xi, hydrogen fuel, obtained from ethanol, is a potentially strong contender as an energy carrier based for more secure and cleaner energy carrier (Barreto, Makihira, and Riahi 2003). Hydrogen can be produced

Khandekar, Sameer

315

Advanced Heat Transfer Technologies Increase Vehicle Performance and Reliability, The Spectrum of Clean Energy Innovation (Fact Sheet)  

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

Advanced Heat Transfer Advanced Heat Transfer Technologies Increase Vehicle Performance and Reliability Keeping yourself cool while driving your car on a hot, sunny day can be a challenge. But it can be even more challenging to cool the power electronic components that are critically important in hybrid electric and all-electric vehicles. Researchers at the National Renewable Energy Laboratory (NREL) investigate and develop these vehicles and their components to help reduce our use of imported petroleum and curb the emissions associated with climate change. A vehicle's power electronic components include the motor controller, converters, and inverters that condition the flow of electrical power between the battery and the electric motor. The problem is that power electronics generate a lot of heat. This heat can decrease

316

Suppression of chaos at slow variables by rapidly mixing fast dynamics through linear energy-preserving coupling  

E-Print Network [OSTI]

Chaotic multiscale dynamical systems are common in many areas of science, one of the examples being the interaction of the low-frequency dynamics in the atmosphere with the fast turbulent weather dynamics. One of the key questions about chaotic multiscale systems is how the fast dynamics affects chaos at the slow variables, and, therefore, impacts uncertainty and predictability of the slow dynamics. Here we demonstrate that the linear slow-fast coupling with the total energy conservation property promotes the suppression of chaos at the slow variables through the rapid mixing at the fast variables, both theoretically and through numerical simulations. A suitable mathematical framework is developed, connecting the slow dynamics on the tangent subspaces to the infinite-time linear response of the mean state to a constant external forcing at the fast variables. Additionally, it is shown that the uncoupled dynamics for the slow variables may remain chaotic while the complete multiscale system loses chaos and becomes completely predictable at the slow variables through increasing chaos and turbulence at the fast variables. This result contradicts the common sense intuition, where, naturally, one would think that coupling a slow weakly chaotic system with another much faster and much stronger mixing system would result in general increase of chaos at the slow variables.

Rafail V. Abramov

2011-05-16T23:59:59.000Z

317

Thermal heat radiation, near-field energy density and near-field radiative heat transfer of coated materials  

E-Print Network [OSTI]

We investigate the thermal radiation and thermal near-field energy density of a metal-coated semi-infinite body for different substrates. We show that the surface polariton coupling within the metal coating leads to an enhancement of the TM-mode part of the thermal near-field energy density when a polar substrate is used. In this case the result obtained for a free standing metal film is retrieved. In contrast, in the case of a metal substrate there is no enhancement in the TM-mode part, as can also be explained within the framework of surface plasmon coupling within the coating. Finally, we discuss the influence of the enhanced thermal energy density on the near-field radiative heat transfer between a simple semi-infinite and a coated semi-infinite body for different material combinations.

Svend-Age Biehs

2011-03-15T23:59:59.000Z

318

Ultracold collisions between two light indistinguishable diatomic molecules: Elastic and rotational energy transfer in HD+HD  

Science Journals Connector (OSTI)

A close coupling quantum-mechanical calculation is performed for rotational energy transfer in a HD+HD collision at very low energy, down to the ultracold temperatures: T?10?8 K. A global six-dimensional H2-H2 potential-energy surface is adopted from a previous work [Boothroyd et al., J. Chem. Phys. 116, 666 (2002)]. State-resolved integral cross sections ?ij?i?j?(?kin) of different quantum-mechanical rotational transitions ij?i?j? in the HD molecules and corresponding state-resolved thermal rate coefficients kij?i?j?(T) have been computed. Additionally, for comparison, H2+H2 calculations for a few selected rotational transitions have also been performed. The hydrogen and deuterated hydrogen molecules are treated as rigid rotors in this work. A pronounced isotope effect is identified in the cross sections of these collisions at low and ultracold temperatures.

Renat A. Sultanov; Dennis Guster; S. K. Adhikari

2012-05-03T23:59:59.000Z

319

Energy transfer from rare gases to surfaces: Collisions with gold and platinum in the range 1–4000 eV  

Science Journals Connector (OSTI)

We have measured the energy transferred to a gold surface by impinging He+, Ar+, and Xe+ ions with kinetic energies in the range 5–4000 eV. This same quantity has been determined for He, Ar, and Xe atoms colliding with a Pt(111) surface. The ion studies employed a novel highly sensitive pyroelectric calorimeter together with a carefully designed compact ion gun. Pulses of nearly monoenergetic ions from the gun were directed at a gold film evaporated directly onto a pyroelectric material that develops a voltage proportional to the energy deposited. The atomic studies were made with supersonic beam techniques, whereby energy transfer is inferred from time-of-flight distributions of the incident and scattered species. The results from these very different experiments are in good agreement and give a fairly complete picture of energy transfer from incident rare-gas atoms and ions to these heavy-metal surfaces. For energies above about 10 eV, the ions transfer at least 60% of their energy, with Xe transferring the most and He the least. For lower incident energies, the energy transfer decreases, approaching zero-energy intercepts of ?60%, 20%, and 5% for Xe, Ar, and He, respectively. The implications of these experimental results for the effective-mass concept, the binary-collision model, low-energy stopping powers, lattice penetration, and the theory of physical sputtering are considered, and we address the relevance of these findings to the technologically important processes of plasma etching and deposition of sputtered thin films and to particle-spacecraft interactions and controlled thermonuclear fusion.

Harold F. Winters; H. Coufal; C. T. Rettner; D. S. Bethune

1990-04-01T23:59:59.000Z

320

Distance Dependence of Intrahelix RuII* to OsII Polypyridyl Excited-State Energy Transfer in Oligoproline Assemblies  

Science Journals Connector (OSTI)

M. Kyle Brennaman , Cavan N. Fleming , Cheryl A. Slate , Scafford A. Serron , Stephanie E. Bettis , Bruce W. Erickson , John M. Papanikolas , and Thomas J. Meyer * ... Wilger, D. J.; Bettis, S. E.; Materese, C. K.; Minakova, M.; Papoian, G. A.; Papanikolas, J. M.; Waters, M. L.Tunable Energy Transfer Rates via Control of Primary, Secondary, and Tertiary Structure of a Coiled Coil Peptide Scaffold Inorg. ... Wilger, Dale J.; Bettis, Stephanie E.; Materese, Christopher K.; Minakova, Maria; Papoian, Garegin A.; Papanikolas, John M.; Waters, Marcey L. ...

M. Kyle Brennaman; Cavan N. Fleming; Cheryl A. Slate; Scafford A. Serron; Stephanie E. Bettis; Bruce W. Erickson; John M. Papanikolas; Thomas J. Meyer

2013-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "linear energy transfer" 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

Highly efficient energy excitation transfer in light-harvesting complexes: The fundamental role of noise-assisted transport  

E-Print Network [OSTI]

Excitation transfer through interacting systems plays an important role in many areas of physics, chemistry, and biology. The uncontrollable interaction of the transmission network with a noisy environment is usually assumed to deteriorate its transport capacity, especially so when the system is fundamentally quantum mechanical. Here we identify key mechanisms through which noise such as dephasing, perhaps counter intuitively, may actually aid transport through a dissipative network by opening up additional pathways for excitation transfer. We show that these are processes that lead to the inhibition of destructive interference and exploitation of line broadening effects. We illustrate how these mechanisms operate on a fully connected network by developing a powerful analytical technique that identifies the invariant (excitation trapping) subspaces of a given Hamiltonian. Finally, we show how these principles can explain the remarkable efficiency and robustness of excitation energy transfer from the light-harvesting chlorosomes to the bacterial reaction center in photosynthetic complexes and present a numerical analysis of excitation transport across the Fenna-Matthew-Olson (FMO) complex together with a brief analysis of its entanglement properties. Our results show that, in general, it is the careful interplay of quantum mechanical features and the unavoidable environmental noise that will lead to an optimal system performance.

Filippo Caruso; Alex W. Chin; Animesh Datta; Susana F. Huelga; Martin B. Plenio

2009-01-28T23:59:59.000Z

322

Thermodynamic analysis of energy conversion and transfer in hybrid system consisting of wind turbine and advanced adiabatic compressed air energy storage  

Science Journals Connector (OSTI)

Abstract A simulation model consisting of wind speed, wind turbine and AA-CAES (advanced adiabatic compressed air energy storage) system is developed in this paper, and thermodynamic analysis on energy conversion and transfer in hybrid system is carried out. The impacts of stable wind speed and unstable wind speed on the hybrid system are analyzed and compared from the viewpoint of energy conversion and system efficiency. Besides, energy conversion relationship between wind turbine and AA-CAES system is investigated on the basis of process analysis. The results show that there are several different forms of energy in hybrid system, which have distinct conversion relationship. As to wind turbine, power coefficient determines wind energy utilization efficiency, and in AA-CAES system, it is compressor efficiency that mainly affects energy conversion efficiencies of other components. The strength and fluctuation of wind speed have a direct impact on energy conversion efficiencies of components of hybrid system, and within proper wind speed scope, the maximum of system efficiency could be expected.

Yuan Zhang; Ke Yang; Xuemei Li; Jianzhong Xu

2014-01-01T23:59:59.000Z

323

Coumarin-conjugated cyclodextrins: remarkable enhancement of the chemical-to-light energy transfer efficiency  

Science Journals Connector (OSTI)

A fluorophore can harvest energy from chemical or bio-transformations. For example ... a fluorophore can illuminate by hosting the chemical energy of oxidation intermediates of bis(aryl)oxalates,...1] The overall...

De-Qi Yuan; Yuewei Zhao; Makoto Fukudome…

2007-04-01T23:59:59.000Z

324

The Impact of Heat Transfer Enhancement Techniques on Energy Savings in the U.S. Industry  

E-Print Network [OSTI]

conserving energy in the process and to reduce pumping power, thereby reducing operating costs. This paper attempts to quantify the impact of enhancement on energy savings and capital costs. The overall heat exchanger market was divided into four sectors...

Rebello, W. J.; Peterson, G. R.; Sohal, M.

325

Energy Transfer from Quantum Dots to Metal-Organic Frameworks for Enhanced Light Harvesting  

E-Print Network [OSTI]

and photosynthesis-like ensembles for solar energy conversion. A few important studies demonstrating the promise applications of MOFs in gas storage,5 sensing,6 chemical separation,7 drug delivery,8 and so on. In addition of MOFs for conversion of solar energy to electrical or chemical energy have been reported previously.9

326

Potential of dual-energy subtraction for converting CT numbers to electron density based on a single linear relationship  

SciTech Connect (OSTI)

Purpose: The conversion of the computed tomography (CT) number to electron density is one of the main processes that determine the accuracy of patient dose calculations in radiotherapy treatment planning. However, the CT number and electron density of tissues cannot be generally interrelated via a simple one-to-one correspondence because the CT number depends on the effective atomic number as well as the electron density. The purpose of this study is to present a simple conversion from the energy-subtracted CT number ({Delta}HU) by means of dual-energy CT (DECT) to the relative electron density ({rho}{sub e}) via a single linear relationship. Methods: The {Delta}HU-{rho}{sub e} conversion method was demonstrated by performing analytical DECT image simulations that were intended to imitate a second-generation dual-source CT (DSCT) scanner with an additional tin filtration for the high-kV tube. The {Delta}HU-{rho}{sub e} calibration line was obtained from the image simulation with a 33 cm-diameter electron density calibration phantom equipped with 16 inserts including polytetrafluoroethylene, polyvinyl chloride, and aluminum; the elemental compositions of these three inserts were quite different to those of body tissues. The {Delta}HU-{rho}{sub e} conversion method was also applied to previously published experimental CT data, which were measured using two different CT scanners, to validate the clinical feasibility of the present approach. In addition, the effect of object size on {rho}{sub e}-calibrated images was investigated by image simulations using a 25 cm-diameter virtual phantom for two different filtrations: with and without the tin filter for the high-kV tube. Results: The simulated {Delta}HU-{rho}{sub e} plot exhibited a predictable linear relationship over a wide range of {rho}{sub e} from 0.00 (air) to 2.35 (aluminum). Resultant values of the coefficient of determination, slope, and intercept of the linear function fitted to the data were close to those of the ideal case. The maximum difference between the ideal and simulated {rho}{sub e} values was -0.7%. The satisfactory linearity of {Delta}HU-{rho}{sub e} was also confirmed from analyses of the experimental CT data. In the experimental cases, the maximum difference between the nominal and simulated {rho}{sub e} values was found to be 2.5% after two outliers were excluded. When compared with the case without the tin filter, the {Delta}HU-{rho}{sub e} conversion performed with the tin filter yielded a lower dose and more reliable {rho}{sub e} values that were less affected by the object-size variation. Conclusions: The {Delta}HU-{rho}{sub e} calibration line with a simple one-to-one correspondence would facilitate the construction of a well-calibrated {rho}{sub e} image from acquired dual-kV images, and currently, second generation DSCT may be a feasible modality for the clinical use of the {Delta}HU-{rho}{sub e} conversion method.

Saito, Masatoshi [Department of Radiological Technology, School of Health Sciences, Faculty of Medicine, Niigata University, Niigata 951-8518 (Japan)

2012-04-15T23:59:59.000Z

327

IEEE TRANSACTIONS ON ENERGY CONVERSION, VOL. 27, NO. 2, JUNE 2012 489 Modeling of a Complementary and Modular Linear  

E-Print Network [OSTI]

and Modular Linear Flux-Switching Permanent Magnet Motor for Urban Rail Transit Applications Ruiwu Cao on a prototype motor. Index Terms--Flux-switching permanent magnet (FSPM) motor, linear motor, modeling. I Wang, and Wenxiang Zhao, Member, IEEE Abstract--In this paper, a complementary and modular linear flux-switching

Mi, Chunting "Chris"

328

Low-frequency transfer of seismic energy by superficial soil deposits and soft rocks  

SciTech Connect (OSTI)

Recordings of recent strong earthquakes obtained on alluvial sites show that the maximum horizonta accelerations tend towards a limit of about 0-45 to 0-50g, associated with large displacements. By contrast, vertical accelerations do not appear to be subject to such a limit (1.7g for the 1979 Imperial Valley earthquake). Theoretical linear elasticity models, when applied to superficial layers of low strength, seem to be inadequate for the prediction of near-field ground motions in alluvial deposits. A good approximation for the horizontal component of certain Imperial Valley records was, however, obtained through a non-linear approach, using local soil properties together with a reasonable hypothesis for motion at the base of the superficial layers in question that included large values of acceleratio for high-frequency shear waves.

Mohammadioun, B.; Pecker, A.

1984-07-01T23:59:59.000Z

329

Hole burning with pressure and electric field: A window on the electronic structure and energy transfer dynamics of bacterial antenna complexes  

SciTech Connect (OSTI)

Light-harvesting (LH) complexes of cyclic (C{sub n}) symmetry from photosynthetic bacteria are studied using absorption and high pressure- and Stark-hole burning spectroscopies. The B800 absorption band of LH2 is inhomogeneously broadened while the B850 band of LH2 and the B875 band of the LH1 complex exhibit significant homogeneous broadening due to ultra-fast inter-exciton level relaxation. The B800{r_arrow}B850 energy transfer rate of ({approximately}2 ps){sup {minus}1} as determined by hole burning and femtosecond pump-probe spectroscopies, is weakly dependent on pressure and temperature, both of which significantly affect the B800-B850 energy gap. The resilience is theoretically explained in terms of a modified Foerster theory with the spectral overlap provided by the B800 fluorescence origin band and weak vibronic absorption bands of B850. Possible explanations for the additional sub-picosecond relaxation channel of B800 observed with excitation on the blue side of B800 are given. Data from pressure and temperature dependent studies show that the B800 and B850 bacteriochlorophyll a (BChl a) molecules are weakly and strongly excitonically coupled, respectively, which is consistent with the X-ray structure of LH2. The B875 BChl a molecules are also strongly coupled. It is concluded that electron-exchange, in addition to electrostatic interactions, is important for understanding the strong coupling of the B850 and B875 rings. The large linear pressure shifts of {approximately}{minus}0.6 cm{sup {minus}1}/MPa associated with B850 and B875 can serve as important benchmarks for electronic structure calculations.

Wu, H.M.

1999-02-12T23:59:59.000Z

330

Identifying and Resolving Issues in EnergyPlus and DOE-2 Window Heat Transfer Calculations  

SciTech Connect (OSTI)

Issues in building energy software accuracy are often identified by comparative, analytical, and empirical testing as delineated in the BESTEST methodology. As described in this report, window-related discrepancies in heating energy predictions were identified through comparative testing of EnergyPlus and DOE-2. Multiple causes for discrepancies were identified, and software fixes are recommended to better align the models with the intended algorithms and underlying test data.

Booten, C.; Kruis, N.; Christensen, C.

2012-08-01T23:59:59.000Z

331

Published by ORNL's Energy Efficiency and Renewable Energy Program (www.ornl.gov/Energy_Eff) No. 2 1999 Technology Transfer Repays  

E-Print Network [OSTI]

Published by ORNL's Energy Efficiency and Renewable Energy Program (www.ornl.gov/Energy_Eff) No. 2 you about the exciting R&D work going on in the Energy Efficiency and Renewable Energy Program at ORNL

Pennycook, Steve

332

Single White-Light-Emitting Nanostructures Based on Förster Resonance Energy Transfer: Development, Characterization and Applications.  

E-Print Network [OSTI]

??Electric energy use associated with lighting reaches up to 3400 Terawatts hours and constitutes approximately 20 % of the world total electricity output per year.… (more)

Chirmanov, Vadim

2015-01-01T23:59:59.000Z

333

Ampulse Corporation: A Case Study on Technology Transfer in U.S. Department of Energy Laboratories  

SciTech Connect (OSTI)

An overview of NREL's partnership with Ampulse, a startup company, providing insight about how industry can successfully work with a U.S. Department of Energy lab.

Perry, T. D., IV

2010-03-01T23:59:59.000Z

334

NREL Improves System Efficiency and Increases Energy Transfer with Wind2H2 Project, Enabling Reduced Cost Electrolysis Production (Fact Sheet)  

SciTech Connect (OSTI)

This fact sheet describes NREL's accomplishments in improving energy transfer within a wind turbine-based hydrogen production system. Work was performed by the Wind2H2 Project team at the National Wind Technology Center in partnership with Xcel Energy.

Not Available

2010-11-01T23:59:59.000Z

335

Energy-transfer and charge-separation pathways in the reaction center of photosystem II revealed by coherent two-dimensional optical  

E-Print Network [OSTI]

of pigment-protein reaction-center RC complexes is the first energy conversion step in photosynthesisEnergy-transfer and charge-separation pathways in the reaction center of photosystem II revealed-band tight-binding model. The dissipative exciton and charge carrier motions are calculated using a transport

Mukamel, Shaul

336

Ultrasimple calculation of very-low-energy momentum-transfer and rotational-excitation cross sections: e-N2 scattering  

E-Print Network [OSTI]

, threshold behavior, and many-body effects such as bound-free correlation, but also for technological ap planetary atmospheres and photoelectric heating in astrophysics. Be- cause rotational energy levels are veryUltrasimple calculation of very-low-energy momentum-transfer and rotational-excitation cross

Morrison, Michael A.

337

NREL Improves System Efficiency and Increases Energy Transfer with Wind2H2 Project, Enabling Reduced Cost Electrolysis Production (Fact Sheet), Hydrogen and Fuel Cell Technical Highlights (HFCTH)  

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

5 * November 2010 5 * November 2010 Energy transfer improvements from the 10-kW wind turbine tested by NREL. The graph shows successive improvement, including the latest preliminary third generation improvement in the green shaded area. Increased Energy Transfer: NREL continues to improve energy transfer from a 10-kW solar PV array, comparing directly coupling the PV array to the electrolyzer stack with a connection through a maximum power point tracking (MPPT) power electronics package designed at NREL. The experimental testing (above) revealed that direct coupling outperformed power electronics when solar irradiance levels are below 500 W/m 2 while the MPPT power converter delivered more energy to the stacks between 500 and 1,100 W/m 2 . These findings

338

Excitonic enhancement of nonradiative energy transfer from a quantum well in the optical near field of energy gradient quantum dots  

E-Print Network [OSTI]

. Phys. 111, 113714 (2012) Transport of indirect excitons in a potential energy gradient Appl. Phys. Lett 30 April 2012; published online 13 June 2012) We report strong exciton migration with an efficiency (QWs) to colloidal nanocrystal quantum dots (NQDs) is criti- cal to the energy efficiency in hybrid

Demir, Hilmi Volkan

339

How Much Energy Is Transferred from the Winds to the Thermocline on ENSO Time Scales?  

Science Journals Connector (OSTI)

The dynamics of El Niño–Southern Oscillation (ENSO) are studied in terms of the balance between energy input from the winds (via wind power) and changes in the storage of available potential energy in the tropical ocean. Presently, there are ...

Jaclyn N. Brown; Alexey V. Fedorov

2010-03-01T23:59:59.000Z

340

Energy conservation: a route to improved distillation profitability. Executive briefing report, technology transfer  

SciTech Connect (OSTI)

The savings potential of energy-conservation measures applied to distillation is examined. The document catalogs all of the various energy-conservation options applicable to distillation; categorizes the options by investment required; and describes in detail the options having a significant potential to reduce distillation energy requirements economically. A technology applications manual designed to assist distillation process engineers who will perform technical and economic analyses to determine the conservation measures most suitable for their particular plant is also available (DOE/CS/4431-T2).

Not Available

1980-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "linear energy transfer" 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

Photoinduced Energy and Charge Transfer in P3HT:SWNT Composites  

Science Journals Connector (OSTI)

(30) Given the large difference between the time scale for carrier decay and the TRMC instrument response time (?IRF ? 5 ns),(31) the confinement of both carriers to isolated tubes in the inert CMC matrix results in transient profiles that are limited by the instrument response, as demonstrated in Figure 3a, and essentially independent of pump energy (Figure S3a,b). ... The carrier collection efficiency (?c) and energy conversion efficiency (?e) of polymer photovoltaic cells were improved by blending of the semiconducting polymer with C60 or its functionalized derivs. ... Converting solar energy into electricity provides a much-needed soln. ...

Andrew J. Ferguson; Jeffrey L. Blackburn; Josh M. Holt; Nikos Kopidakis; Robert C. Tenent; Teresa M. Barnes; Michael J. Heben; Garry Rumbles

2010-07-26T23:59:59.000Z

342

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

343

Energy Loss and Charge Transfer of Argon in a Laser-Generated Carbon Plasma  

Science Journals Connector (OSTI)

This Letter reports on the measurement of the energy loss and the projectile charge states of argon ions at an energy of 4??MeV/u penetrating a fully ionized carbon plasma. The plasma of ne?1020??cm-3 and Te?180??eV is created by two laser beams at ?Las=532??nm incident from opposite sides on a thin carbon foil. The resulting plasma is spatially homogenous and allows us to record precise experimental data. The data show an increase of a factor of 2 in the stopping power which is in very good agreement with a specifically developed Monte Carlo code, that allows the calculation of the heavy ion beam’s charge state distribution and its energy loss in the plasma.

A. Frank, A. Blaževi?, V. Bagnoud, M. M. Basko, M. Börner, W. Cayzac, D. Kraus, T. Heßling, D. H. H. Hoffmann, A. Ortner, A. Otten, A. Pelka, D. Pepler, D. Schumacher, An. Tauschwitz, and M. Roth

2013-03-12T23:59:59.000Z

344

On the transfer of energy towards infinity in the theory of weak turbulence for the nonlinear Schrödinger equation  

E-Print Network [OSTI]

We study the mathematical properties of a kinetic equation which describes the long time behaviour of solutions to the weak turbulence equation associated to the cubic nonlinear Schr\\"odinger equation. In particular, we give a precise definition of weak solutions and prove global existence of solutions for all initial data with finite mass. We also prove that any nontrivial initial datum yields the instantaneous onset of a condensate, i.e. a Dirac mass at the origin for any positive time. Furthermore we show that the only stationary solutions with finite total measure are Dirac masses at the origin. We finally construct solutions with finite energy, which is transferred to infinity in a self-similar manner.

A. H. M. Kierkels; J. J. L. Velázquez

2014-10-08T23:59:59.000Z

345

Repair of overheating linear accelerator  

SciTech Connect (OSTI)

Los Alamos Neutron Science Center (LANSCE) is a proton accelerator that produces high energy particle beams for experiments. These beams include neutrons and protons for diverse uses including radiography, isotope production, small feature study, lattice vibrations and material science. The Drift Tube Linear Accelerator (DTL) is the first portion of a half mile long linear section of accelerator that raises the beam energy from 750 keV to 100 MeV. In its 31st year of operation (2003), the DTL experienced serious issues. The first problem was the inability to maintain resonant frequency at full power. The second problem was increased occurrences of over-temperature failure of cooling hoses. These shortcomings led to an investigation during the 2003 yearly preventative maintenance shutdown that showed evidence of excessive heating: discolored interior tank walls and coper oxide deposition in the cooling circuits. Since overheating was suspected to be caused by compromised heat transfer, improving that was the focus of the repair effort. Investigations revealed copper oxide flow inhibition and iron oxide scale build up. Acid cleaning was implemented with careful attention to protection of the base metal, selection of components to clean and minimization of exposure times. The effort has been very successful in bringing the accelerator through a complete eight month run cycle allowing an incredible array of scientific experiments to be completed this year (2003-2004). This paper will describe the systems, investigation analysis, repair, return to production and conclusion.

Barkley, Walter; Baldwin, William; Bennett, Gloria; Bitteker, Leo; Borden, Michael; Casados, Jeff; Fitzgerald, Daniel; Gorman, Fred; Johnson, Kenneth; Kurennoy, Sergey; Martinez, Alberto; O’Hara, James; Perez, Edward; Roller, Brandon; Rybarcyk, Lawrence; Stark, Peter; Stockton, Jerry

2004-01-01T23:59:59.000Z

346

Linear Accelerator  

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

Linear Accelerator (LINAC) The core of the LANSCE facility is one of the nation's most powerful proton linear accelerators or LINAC. The LINAC at LANSCE has served the nation since...

347

SU?E?T?153: Proton Linearity and Energy Dependence Studies of Optically Stimulated Luminescent Detectors for Remote Audits of Proton Beam Calibrations by the Radiological Physics Center  

Science Journals Connector (OSTI)

Purpose: Implement Optically Stimulated Luminescent Detectors (OSLD) into Radiological Physics Center's (RPC) remote audit quality assurance (QA) program for protons. Methods: The OSLDs were aluminum oxide (Al2O3:C) nanoDots™ from Landauer Inc. (Glenwood IL.). A standard RPC remote audit electron phantom with detector inserts at two different locations with three scatter rings and slabs of water equivalent plastic phantom added on top of the phantom to place both dosimeter locations within the SOBP were used. Two nanoDots™ were placed in each detector insert of the phantom. For the linearity study a 250 MeV proton beam with reference setup (FS = 10 × 10 cm2 10cm SOBP) was used with the beam isocenter located between the two detector depths. Doses of 25 50 100 200 300 350 cGy at isocenter were delivered. For the energy dependence study doses of 200 cGy each were delivered with the reference setup for 250 200 and 160 MeV proton beams. Co?60 measurement was performed as a standardization process. The OSLDs were read on a MicroStar reader from Landauer between 5 to 7 days after irradiation. Results: The OSLD irradiated had a linear dose response of y=?8.3513E?5x+1.0084 with an R2 = 1.000 over the dose range where y=Kl (dose linearity factor) and x=dose. The energy dependence of the OSLD for the three different energies was less than 3% for the irradiation conditions and fluctuation for different OSLDs less than 1% for the same energy used for the RPC remote audit program. Conclusions: The OSLD showed a linear dose response and consistent energy dependence for three proton energies at the MD Anderson Cancer Center Proton Center. OSLD can be used to replace the TLD for RPC's remote audit QA program for proton beam output.

J Cho; P Alvarez; D Followill; M Gillin; G Ibbott

2011-01-01T23:59:59.000Z

348

Disturbance of Energy Transfer as a Factor Promoting Changes in the Biologic Behavior of Tumor Cells  

Science Journals Connector (OSTI)

...was treated with acetone, ethanol, meth- anol, or chloroform...precipitate with acetone, ethanol, or methanol turned its green...Treatment with acetone, ethanol, or methanol performed after...demonstrating the role played by energy, are listed in Tables 1-3...

Andor Udvardy and Roland Holland

1969-08-01T23:59:59.000Z

349

Evaluation of Phenylnaphthalenes as Heat Transfer Fluids for High Temperature Energy Applications  

SciTech Connect (OSTI)

The thermodynamic properties of 1- and 2-phenyl substituted polyaromatic hydrocarbons have been measured and estimated under conditions relevant to heat transport applications almost to the critical point. Densities, vapor pressures, and heat capacity measurements were used to derive critical temperature, pressure and density for the phenylnaphthalenes. The thermal and radiolytic stability of 1-phenylnaphthalene was examined using thermogravimetric analysis, differential scanning calorimetery, and gamma irradiation. Low vapor pressure and resistance to thermal decomposition may make phenylnaphthalenes suitable for heat transfer applications involving parabolic solar collectors. In particular, 1-phenylnaphthalene has an advantage over high temperature inorganic salts for applications up to 800 K because it is a liquid at temperatures at or close to ambient. Thermal cycling would have to be restricted to temperatures below the critical point to avoid degradation of the fluid. Radiation stability was also tested by a 100 kGy irradiation of 1-phenylnaphthalene in a Co-60 irradiator. NMR analysis indicated 1.7 mol.% degradation, which although lower than observed for tributylphosphate/kerosene benchmark fluids for nuclear applications, is higher than that seen in imidazolium ionic liquids.

McFarlane, Joanna [ORNL; Luo, Huimin [ORNL; Garland, Marc A [ORNL; Steele, William V. [University of Tennessee, Knoxville (UTK)

2010-01-01T23:59:59.000Z

350

DOE/EA-1338: Finding of No Significant Impact Transfer of the Department of Energy Grand Junction Project Office To Non-DOE Ownership (04/25/00)  

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

8 8 F I N A L Environmental Assessment for the Transfer of the Department of Energy Grand Junction Office to Non-DOE Ownership April 2000 U.S. Department of Energy * Grand Junction Office * 2597 B ¾ Road * Grand Junction, CO 81503 Grand Junction Office Environmental Assessment Final DOE/EA-1338 FINAL Environmental Assessment for the Transfer of the Department of Energy Grand Junction Office to Non-DOE Ownership April 2000 U.S. Department of Energy Grand Junction Office 2597 B ¾ Road Grand Junction, CO 81503 Grand Junction Office Environmental Assessment Final i April 2000 TABLE OF CONTENTS Title Page Table of Contents ......................................................................................................................................... i List of Figures ............................................................................................................................................iii

351

Inelastic interaction induced by high-energy muons (6 GeV, 12 GeV) at low momentum-transfer in nuclear emulsion  

Science Journals Connector (OSTI)

Inelastic scattering of 6 and 12 GeV muons has been studied in Ilford K5 nuclear emulsions. For energy transfers greater than 150 MeV (for ?...2..., the cross-sections are respectively (11.1±1.4) ?b/nucleon at 12...

J. C. Montret; B. Coupat; B. Michel; F. Vazeille

1972-01-01T23:59:59.000Z

352

T&D Conference, 15-16 December, 2004 Carnegie-Mellon University Testing the Effects of Inter-Regional Transfers of Real Energy on  

E-Print Network [OSTI]

-Regional Transfers of Real Energy on the Performance of Electricity Markets by Timothy D. Mount, Applied Economics Abstract Since deregulation of the electric utility industry began in the USA, there has been a substantial of problem is to expand the capacity of transmission networks, but it is likely that market forces will still

353

6th International Symposium on Multiphase Flow, Heat Mass Transfer and Energy Conversion Xi'an, China, 11-15 July 2009  

E-Print Network [OSTI]

6th International Symposium on Multiphase Flow, Heat Mass Transfer and Energy Conversion Xi in pipeline transportation, where it is important to identify and control bottlenecks influence on production be viewed as the hydrodynamic equivalent of the Mach number for gas flows. Simplified hydraulic theories

Al Hanbali, Ahmad

354

Ratiometric Analysis of Single-Molecule Fluorescence Resonance Energy Transfer Using Logical Combinations of Threshold Criteria: A Study of 12-mer DNA  

E-Print Network [OSTI]

Ratiometric Analysis of Single-Molecule Fluorescence Resonance Energy Transfer Using LogicalEW United Kingdom ReceiVed: NoVember 5, 1999; In Final Form: March 13, 2000 Single-molecule can be readily distinguished by this single-molecule method. Fluorescence lifetimes and anisotropy

Wallace, Mark

355

Development of ion injection into the BNL test electron beam ion source using a prototype low energy beam transfer switchyard and a hollow  

E-Print Network [OSTI]

Development of ion injection into the BNL test electron beam ion source using a prototype low-to-pulse basis, the BNL RHIC electron beam ion source EBIS will use injection of primary "seed" ions from energy beam transfer switchyard and a hollow cathode ion source ,,abstract...a...,b... E. N. Beebe, J. G

356

MODELING OF HEAT TRANSFER IN ROOMS IN THE MODELICA  

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

MODELING MODELING OF HEAT TRANSFER IN ROOMS IN THE MODELICA "BUILDINGS" LIBRARY Michael Wetter, Wangda Zuo, Thierry Stephane Nouidui Simulation Research Group, Building Technologies Department Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory Berkeley, CA 94720, USA ABSTRACT This paper describes the implementation of the room heat transfer model in the free open-source Modelica "Buildings" library. The model can be used as a single room or to compose a multizone building model. We discuss how the model is de- composed into submodels for the individual heat transfer phenomena. We also discuss the main physical assumptions. The room model can be parameterized to use di↵erent modeling assump- tions, leading to linear or non-linear di↵erential algebraic systems of equations. We present nu- merical experiments that show

357

Sandia National Laboratories: Small Business Technology Transfer...  

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

Business Technology Transfer Research program JBEI Research Receives Strong Industry Interest in DOE Technology Transfer Call On September 18, 2013, in Biofuels, Biomass, Energy,...

358

Solar wind energy transfer regions inside the dayside magnetopause: Accelerated heavy ions as tracers for MHD-processes in the dayside boundary layer  

Science Journals Connector (OSTI)

Plasma and magnetic field data from PROGNOZ-7 have revealed that solar wind (magnetosheath) plasma elements may penetrate the dayside magnetopause surface and form high density regions with enhanced cross-field flow in the boundary layer. The injected magnetosheath plasma is observed to have an excess drift velocity as compared to the local boundary layer plasma, comprising both “cold” plasma of terrestrial origin and a hot ring current component. A differential drift between two plasma components can be understood in terms of a momentum transfer process driven by an injected magnetosheath plasma population. The braking action of the injected plasma may be described as a dynamo process where particle kinetic energy is transferred into electromagnetic energy (electric field). The generated electric field will force the local plasma to ?×B-drift, and the dynamo region therefore also constitutes an accelerator region for the local plasma. Whenever energy is dissipated from the energy transfer process (a net current is flowing through a load), there will also be a difference between the induced electric field and the v×B term of the generator plasma. Thus, the local plasma will drift more slowly than the injected generator plasma. We will present observations showing that a relation between the momentum transferred, the injected plasma and the momentum taken up by the local plasma exists. For instance, if the local plasma density is sufficiently high, the differential drift velocity of the injected and local plasma will be small. A large fraction of the excess momentum is then transferred to the local plasma. Conversely, a low local plasma density results in a high velocity difference and a low fraction of local momentum transfer. In our study cases the “cold” plasma component was frequently found to dominate the local magnetospheric plasma density in the boundary layer. Accordingly, this component may have the largest influence on the local momentum transfer process. We will demonstrate that this also seems to be the case. Moreover we show that the accelerated “cold” plasma component may be used as a tracer element reflecting both the momentum and energy transfer and the penetration process in the dayside boundary layer. The high He+ percentage of the accelerated “cold” plasma indicates a plasmaspheric origin. Considering the quite high densities of energetic He+ found in the boundary layer, the overall low abundance of He+ (as compared to e.g. O+) found in the plasma sheet and outer ring current evidently reduces the importance of the dayside boundary layer as a plasma source in the large scale magnetospheric circulation system.

R. Lundin; E.M. Dubinin

1985-01-01T23:59:59.000Z

359

White light generation by resonant nonradiative energy transfer from epitaxial InGaN/GaN quantum wells to colloidal CdSe/ZnS core/shell quantum dots  

E-Print Network [OSTI]

White light generation by resonant nonradiative energy transfer from epitaxial InGaN/GaN quantum n a l f o r p h y s i c s New Journal of Physics White light generation by resonant nonradiative white-light-generating nonradiative energy transfer (ET) from epitaxial quantum wells (QWs) to colloidal

Demir, Hilmi Volkan

360

Faculty Positions Heat Transfer and  

E-Print Network [OSTI]

Faculty Positions Heat Transfer and Thermal/Energy Sciences Naval Postgraduate School Monterey-track faculty position at the assistant professor level in the areas of Heat Transfer and Thermal/Fluid Sciences

Note: This page contains sample records for the topic "linear energy transfer" 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

Technology Transfer  

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

Technology Transfer Since 1974, the Federal Laboratory Consortium (FLC) Award for Excellence in Technology Transfer has recognized scientists and engineers at federal government...

362

Color optimization of conjugated-polymer/InGaN Hybrid white light emitting diodes by incomplete energy transfer  

Science Journals Connector (OSTI)

Abstract By using the wavelength conversion method, white light emitting diodes (WLEDs) were produced by applying mixtures of polysiloxane and fluorescent polymers on InGaN based light emitting diodes. UV curable organic–inorganic hybrid materials with high refractive index (1.561), compromised optical, thermal and mechanical properties was used as encapsulants. Red light emitting fluorescent FABD polymer (with 9,9-dioctylfluorene (F), anthracene (A) and 2,1,3-benzothiadiazole (B), and 4,7-bis(2-thienyl)-2,1,3-benzothiadiazole (D) repeating units) and green light emitting fluorescent FAB polymer were used as wavelength converters. The encapsulant/fluorescent polymer mixture and InGaN produce the white light by incomplete energy transfer mechanism. \\{WLEDs\\} with high color rendering index (CRI, about 93), and tunable correlated color temperature (CCT) properties can be produced by controlling the composition and chemical structures of encapsulating polymer and fluorescent polymer in hybrid materials, offering cool-white and neutral-white LEDs.

Chi-Jung Chang; Chun-Feng Lai; P. Madhusudhana Reddy; Yung-Lin Chen; Wei-Yung Chiou; Shinn-Jen Chang

2014-01-01T23:59:59.000Z

363

PHYSICAL REVIEW SPECIAL TOPICS -ACCELERATORS AND BEAMS, VOLUME 5, 011001 (2002) Energy doubler for a linear collider  

E-Print Network [OSTI]

, California 90089 W. B. Mori, C. Joshi, R. Hemker, E. S. Dodd, C. E. Clayton, K. A. Marsh, B. Blue, and S. Wang University of California, Los Angeles, Los Angeles, California 90095 R. Assmann, F. J. Decker, M. Hogan, R. Iverson, and D. Walz Stanford Linear Accelerator Center, Stanford University, Stanford

364

The primary photosynthetic energy conversion in bacterial reaction centers - Stepwise electron transfer and the effect of elevated exposure levels  

Science Journals Connector (OSTI)

The primary reaction in photosynthetic reaction centers from Rhodobacter sphaeroides is investigated for different experimental conditions. Agreement with stepwise electron transfer...

Dominguez, Pablo Nahuel; Himmelstoss, Matthias; Michelmann, Jeff; Lehner, Florian; Gardiner, Alastair; Cogdell, Richard; Zinth, Wolfgang

365

IMPROVING THE ENERGY EFFICIENCY OF A MID-SIZE POWER PLANT BY REDUCTION IN AUXILIARY POWER AND IMPROVED HEAT TRANSFER.  

E-Print Network [OSTI]

??This study incorporates the potential use of Variable Frequency Drives on various motors as well as areas of improved heat transfer in an older, mid-sized… (more)

Green, Jeffrey Andrew

2014-01-01T23:59:59.000Z

366

The Earth-Moon CR3BP: A full Atlas of low-energy fast periodic transfer orbits  

E-Print Network [OSTI]

In the framework of the planar CR3BP for mass parameter mu=0.0121505, corresponding to the Earth-Moon system, we identify and describe 80 families of periodic orbits encircling both the Earth and the Moon ("transfer" orbits). All the orbits in these families have very low energies, most of them corresponding to values of the Jacobi constant C for which the Hill surface is closed at the Lagrangian point L2. All of these orbits have also short period T, generally under six months. Most of the families are composed of orbits that are asymmetric with respect to the Earth-Moon axis. The main results presented for each family are: (i) the characteristic curves T(h), y(h), v_y(h), and v_x(h) on the Poincare section Sigma_1={x=0.836915310,y,v_x>0,v_y} normal to the Earth-Moon axis at the Lagrangian point L1, parameterized by their energy h=-C/2 in the synodic coordinate system; (ii) the stability parameter along each family; (iii) the intersections x_i(h) of the orbits with the Earth-Moon axis, on the Poincare section Sigma_2={x,y=0,v_x},v_y>0}; (iv) plots of some selected orbits and details of their circumlunar region; and (v) numerical data for the intersection of an orbit with Sigma_1 at a reference value of h. Some possible extensions and applications of this work are also discussed.

Alejandro M. Leiva; Carlos B. Briozzo

2006-12-14T23:59:59.000Z

367

North Linear Accelerator  

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

North Linear Accelerator North Linear Accelerator Building Exterior Beam Enclosure Level Walk to the North Spreader North Recombiner Extras! North Linear Accelerator The North Linear Accelerator is one of the two long, straight sections of Jefferson Lab's accelerator. Electrons gain energy in this section by passing through acceleration cavities. There are 160 cavities in this straightaway, all lined up end to end. That's enough cavities to increase an electron's energy by 400 million volts each time it passes through this section. Electrons can pass though this section as many as five times! The cavities are powered by microwaves that travel down the skinny rectangular pipes from the service buildings above ground. Since the cavities won't work right unless they are kept very cold, they

368

Energy flux into internal lee waves: sensitivity to future climate changes using linear theory and a climate model  

Science Journals Connector (OSTI)

Internal lee waves generated by geostrophic flows over rough topography are thought to be a significant energy sink for eddies and energy source for deep ocean mixing. The sensitivity of the energy flux into lee waves from pre-industrial, present ...

Angelique Melet; Robert Hallberg; Alistair Adcroft; Maxim Nikurashin; Sonya Legg

369

Smoothness- transferred random field  

E-Print Network [OSTI]

We propose a new random field (RF) model, smoothness-transfer random field (ST-RF) model, for image modeling. In the objective function of RF models, smoothness energy is defined with compatibility function to capture the ...

Wei, Donglai

2013-01-01T23:59:59.000Z

370

Heat transfer dynamics  

SciTech Connect (OSTI)

As heat transfer technology increases in complexity, it becomes more difficult for those without thermal dynamics engineering training to choose between competitive heat transfer systems offered to meet their drying requirements. A step back to the basics of heat transfer can help professional managers and papermakers make informed decisions on alternative equipment and methods. The primary forms of heat and mass transfer are reviewed with emphasis on the basics, so a practical understanding of each is gained. Finally, the principles and benefits of generating infrared energy by combusting a gaseous hydrocarbon fuel are explained.

Smith, T.M. (Marsden, Inc., Pennsauken, NJ (United States))

1994-08-01T23:59:59.000Z

371

NREL: Technology Transfer - About Technology Transfer  

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

About Technology Transfer About Technology Transfer Through technology partnerships, NREL seeks to reduce private sector risk and enable investment in the adoption of renewable energy and energy efficiency technologies. The transfer of these technologies to the marketplace helps displace oil, reduce carbon emissions, and increase U.S. industry competitiveness. Principles NREL develops and implements technology partnerships based on the standards established by the following principles: Balancing Public and Private Interest Form partnerships that serve the public interest and advance U.S. Department of Energy goals. Demonstrate appropriate stewardship of publicly funded assets, yielding national benefits. Provide value to the commercial partner. Focusing on Outcomes Develop mutually beneficial collaborations through processes, which are

372

Urban Sewage Delivery Heat Transfer System (2): Heat Transfer  

E-Print Network [OSTI]

The thimble delivery heat-transfer (TDHT) system is one of the primary modes to utilize the energy of urban sewage. Using the efficiency-number of transfer units method ( ), the heat-transfer efficiencies of the parallel-flow and reverse-flow TDTH...

Zhang, C.; Wu, R.; Li, X.; Li, G.; Zhuang, Z.; Sun, D.

2006-01-01T23:59:59.000Z

373

NREL: Technology Transfer - Events  

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

Events Events February 2014 NASEO Energy Outlook Conference February 4 - 7, 2014 Washington , DC Add to calendar Printable Version Technology Transfer Home About Technology Transfer Technology Partnership Agreements Licensing Agreements Nondisclosure Agreements Research Facilities Commercialization Programs Success Stories News Contacts Did you find what you needed? Yes 1 No 0 Thank you for your feedback. Would you like to take a moment to tell us how we can improve this page? Submit We value your feedback. Thanks! We've received your feedback. Something went wrong. Please try again later. NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. NREL U.S. Department of Energy Office of Energy Efficiency and Renewable Energy Alliance for Sustainable Energy, LLC

374

Polyethylene under tensile load: strain energy storage and breaking of linear and knotted alkanes probed by first-principles molecular dynamics calculations  

E-Print Network [OSTI]

The mechanical resistance of a polyethylene strand subject to tension and the way its properties are affected by the presence of a knot is studied using first-principles molecular dynamics calculations. The distribution of strain energy for the knotted chains has a well-defined shape that is very different from the one found in the linear case. The presence of a knot significantly weakens the chain in which it is tied. Chain rupture invariably occurs just outside the entrance to the knot, as is the case for a macroscopic rope.

A. Marco Saitta; Michael L. Klein

1999-09-01T23:59:59.000Z

375

Transferring Data  

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

Transferring Data Transferring Data to and from NERSC Yushu Yao 1 Tuesday, March 8, 2011 Overview 2 * Structure of NERSC Systems and Disks * Data Transfer Nodes * Transfer Data from/to NERSC - scp/sftp - bbcp - GridFTP * Sharing Data Within NERSC Tuesday, March 8, 2011 Systems and Disks 3 System Hopper Franklin Carver Euclid Data Transfer Node PDSF Global Home ($HOME) Global Scratch ($GSCRATCH) Project Directory Local Non-shared Scratch Data transfer nodes can access most of the disks, suggested for transferring data in/out NERSC Tuesday, March 8, 2011 Data Transfer Nodes * Two Servers Available Now: - dtn01.nersc.gov and dtn02.nersc.gov - Accessible by all NERSC users * Designed to Transfer Data: - High speed connection to HPSS and NGF (Global Home, Project, and Global Scratch) - High speed ethernet to wide area network

376

Technology Transfer: Available Technologies  

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

Software and Information Technologies Software and Information Technologies Algorithm for Correcting Detector Nonlinearites Chatelet: More Accurate Modeling for Oil, Gas or Geothermal Well Production Collective Memory Transfers for Multi-Core Processors Energy Efficiency Software EnergyPlus:Energy Simulation Software for Buildings Tools, Guides and Software to Support the Design and Operation of Energy Efficient Buildings Flexible Bandwidth Reservations for Data Transfer Genomic and Proteomic Software LABELIT - Software for Macromolecular Diffraction Data Processing PHENIX - Software for Computational Crystallography Vista/AVID: Visualization and Allignment Software for Comparative Genomics Geophysical Software Accurate Identification, Imaging, and Monitoring of Fluid Saturated Underground Reservoirs

377

Conversion of the energy-subtracted CT number to electron density based on a single linear relationship: an experimental verification using a clinical dual-source CT scanner  

Science Journals Connector (OSTI)

In radiotherapy treatment planning, the conversion of the computed tomography (CT) number to electron density is one of the main processes that determine the accuracy of patient dose calculations. However, in general, the CT number and electron density of tissues cannot be interrelated using a simple one-to-one correspondence. This study aims to experimentally verify the clinical feasibility of an existing novel conversion method proposed by the author of this note, which converts the energy-subtracted CT number (?HU) to the relative electron density (?e) via a single linear relationship by using a dual-energy CT (DECT). The ?HU–?e conversion was performed using a clinical second-generation dual-source CT scanner operated in the dual-energy mode with tube potentials of 80 kV and 140 kV with and without an additional tin filter. The ?HU–?e calibration line was obtained from the DECT image acquisition for tissue substitutes in an electron density phantom. In addition, the effect of object size on ?HU–?e conversion was also experimentally investigated. The plot of the measured ?HU versus nominal ?e values exhibited a single linear relationship over a wide ?e range from 0.00 (air) to 2.35 (aluminum). The ?HU–?e conversion performed with the tin filter yielded a lower dose and more reliable ?e values that were less affected by the object-size variation when compared to the corresponding values obtained for the case without the tin filter.

Masayoshi Tsukihara; Yoshiyuki Noto; Takahide Hayakawa; Masatoshi Saito

2013-01-01T23:59:59.000Z

378

NREL: Technology Transfer Home Page  

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

Technology Transfer Technology Transfer Search More Search Options Site Map The National Renewable Energy Laboratory (NREL) works with industry and organizations to transfer renewable energy and energy efficiency technologies into the marketplace. Working with Us We offer many opportunities and ways for you to partner with us. Learn more about our technology partnership agreements and services: Agreements for Commercializing Technology Cooperative Research and Development Agreements Technologies Available for Licensing Technology Partnerships Work for Others Research Facilities NREL follows its principles for establishing mutually beneficial technology partnerships. Through our commercialization programs, we work to stimulate the market for clean energy technologies and foster the growth of clean energy start-ups.

379

DRAFT - Design of Radiological Survey and Sampling to Support Title Transfer or Lease of Property on the Department of Energy Oak Ridge Reservation  

SciTech Connect (OSTI)

The U.S. Department of Energy (DOE) owns, operates, and manages the buildings and land areas on the Oak Ridge Reservation (ORR) in Oak Ridge, Tennessee. As land and buildings are declared excess or underutilized, it is the intent of DOE to either transfer the title of or lease suitable property to the Community Reuse Organization of East Tennessee (CROET) or other entities for public use. It is DOE's responsibility, in coordination with the U.S. Environmental Protection Agency (EPA), Region 4, and the Tennessee Department of Environment and Conservation (TDEC), to ensure that the land, facilities, and personal property that are to have the title transferred or are to be leased are suitable for public use. Release of personal property must also meet site requirements and be approved by the DOE contractor responsible for site radiological control. The terms title transfer and lease in this document have unique meanings. Title transfer will result in release of ownership without any restriction or further control by DOE. Under lease conditions, the government retains ownership of the property along with the responsibility to oversee property utilization. This includes involvement in the lessee's health, safety, and radiological control plans and conduct of site inspections. It may also entail lease restrictions, such as limiting access to certain areas or prohibiting digging, drilling, or disturbing material under surface coatings. Survey and sampling requirements are generally more rigorous for title transfer than for lease. Because of the accelerated clean up process, there is an increasing emphasis on title transfers of facilities and land. The purpose of this document is to describe the radiological survey and sampling protocols that are being used for assessing the radiological conditions and characteristics of building and land areas on the Oak Ridge Reservation that contain space potentially available for title transfer or lease. After necessary surveys and sampling and laboratory analyses are completed, the data are analyzed and included in an Environmental Baseline Summary (EBS) report for title transfer or in a Baseline Environmental Analysis Report (BEAR) for lease. The data from the BEAR is then used in a Screening-Level Human Health Risk Assessment (SHHRA) or a risk calculation (RC) to assess the potential risks to future owners/occupants. If title is to be transferred, release criteria in the form of specific activity concentrations called Derived Concentration Guideline Levels (DCGLs) will be developed for the each property. The DCGLs are based on the risk model and are used with the data in the EBS to determine, with statistical confidence, that the release criteria for the property have been met. The goal of the survey and sampling efforts is to (1) document the baseline conditions of the property (real or personal) prior to title transfer or lease, (2) obtain enough information that an evaluation of radiological risks can be made, and (3) collect sufftcient data so that areas that contain minimal residual levels of radioactivity can be identified and, following radiological control procedures, be released from radiological control. (It should be noted that release from radiological control does not necessarily mean free release because DOE may maintain institutional control of the site after it is released from radiological control). To meet the goals of this document, a Data Quality Objective (DQO) process will be used to enhance data collection efficiency and assist with decision-making. The steps of the DQO process involve stating the problem, identifying the decision, identifying inputs to the decision, developing study boundaries, developing the decision rule, and optimizing the design. This document describes the DQOs chosen for surveys and sampling efforts performed for the purposes listed above. The previous version to this document focused on the requirements for radiological survey and sampling protocols that are be used for leasing. Because the primary focus at this time is on title transfer, th

Cusick L.T.

2002-09-25T23:59:59.000Z

380

NUMERICAL DETERMINATION AND TREATMENT OF CONVECTIVE HEAT TRANSFER COEFFICIENT IN THE COUPLED BUILDING ENERGY AND CFD SIMULATION  

E-Print Network [OSTI]

for the correct prediction of the convective heat. A finer grid resolution in CFD does not always lead to a more conservation equations of flow on these grid cells. As shown in Figure 1(a), CFD calculates convective heat1 NUMERICAL DETERMINATION AND TREATMENT OF CONVECTIVE HEAT TRANSFER COEFFICIENT IN THE COUPLED

Chen, Qingyan "Yan"

Note: This page contains sample records for the topic "linear energy transfer" 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

Curcumin Regulates Low-Linear Energy Transfer {gamma}-Radiation-Induced NF{kappa}B-Dependent Telomerase Activity in Human Neuroblastoma Cells  

SciTech Connect (OSTI)

Purpose: We recently reported that curcumin attenuates ionizing radiation (IR)-induced survival signaling and proliferation in human neuroblastoma cells. Also, in the endothelial system, we have demonstrated that NF{kappa}B regulates IR-induced telomerase activity (TA). Accordingly, we investigated the effect of curcumin in inhibiting IR-induced NF{kappa}B-dependent hTERT transcription, TA, and cell survival in neuroblastoma cells. Methods and Materials: SK-N-MC or SH-SY5Y cells exposed to IR and treated with curcumin (10-100 nM) with or without IR were harvested after 1 h through 24 h. NF{kappa}B-dependent regulation was investigated either by luciferase reporter assays using pNF{kappa}B-, pGL3-354-, pGL3-347-, or pUSE-I{kappa}B{alpha}-Luc, p50/p65, or RelA siRNA-transfected cells. NF{kappa}B activity was analyzed using an electrophoretic mobility shift assay and hTERT expression using the quantitative polymerase chain reaction. TA was determined using the telomerase repeat amplification protocol assay and cell survival using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltertrazolium bromide and clonogenic assay. Results: Curcumin profoundly inhibited IR-induced NF{kappa}B. Consequently, curcumin significantly inhibited IR-induced TA and hTERT mRNA at all points investigated. Furthermore, IR-induced TA is regulated at the transcriptional level by triggering telomerase reverse transcriptase (TERT) promoter activation. Moreover, NF{kappa}B becomes functionally activated after IR and mediates TA upregulation by binding to the {kappa}B-binding region in the promoter region of the TERT gene. Consistently, elimination of the NF{kappa}B-recognition site on the telomerase promoter or inhibition of NF{kappa}B by the I{kappa}B{alpha} mutant compromises IR-induced telomerase promoter activation. Significantly, curcumin inhibited IR-induced TERT transcription. Consequently, curcumin inhibited hTERT mRNA and TA in NF{kappa}B overexpressed cells. Furthermore, curcumin enhanced the IR-induced inhibition of cell survival. Conclusions: These results strongly suggest that curcumin inhibits IR-induced TA in an NF{kappa}B dependent manner in human neuroblastoma cells.

Aravindan, Natarajan, E-mail: naravind@ouhsc.ed [Department of Radiation Oncology, University of Oklahoma Health Sciences Center, Oklahoma City, OK (United States); Veeraraghavan, Jamunarani; Madhusoodhanan, Rakhesh; Herman, Terence S. [Department of Radiation Oncology, University of Oklahoma Health Sciences Center, Oklahoma City, OK (United States); Natarajan, Mohan [Department of Otolaryngology, Head and Neck Surgery, University of Texas Health Sciences Center at San Antonio, San Antonio, TX (United States)

2011-03-15T23:59:59.000Z

382

Pressure-induced phase transformations in alkali-metal hydrides calculated using an improved linear-muffin-tin-orbital–atomic-sphere-approximation energy scheme  

Science Journals Connector (OSTI)

A scheme for the calculation of total energies from first principles is described which is intermediate between the popular linear muffin-tin-orbital method in the atomic-sphere approximation (LMTO-ASA) and an exact full-potential treatment. The local-density total energy is evaluated accurately for the output charge density from the ASA potential. This method is applied to the study of static structural properties and the pressure-induced phase transformation from B1 (NaCl-structure) to B2 (CsCl-structure) phases for the partially ionic alkaki-metal hydrides NaH and KH and the alkali halide NaCl. Good agreement with experimental transition pressures and volumes is obtained. The series NaH, KH, and NaCl shows the observed strong cation and weak anion dependence. Charge densities and band structures are given at zero and high pressure. Calculated energy-volume curves for LiH show no transition up to 1 Mbar, in agreement with experimental data.

C. O. Rodriguez and M. Methfessel

1992-01-01T23:59:59.000Z

383

Excitation energies with linear response density matrix functional theory along the dissociation coordinate of an electron-pair bond in N-electron systems  

SciTech Connect (OSTI)

Time dependent density matrix functional theory in its adiabatic linear response formulation delivers exact excitation energies ?{sub ?} and oscillator strengths f{sub ?} for two-electron systems if extended to the so-called phase including natural orbital (PINO) theory. The Löwdin-Shull expression for the energy of two-electron systems in terms of the natural orbitals and their phases affords in this case an exact phase-including natural orbital functional (PILS), which is non-primitive (contains other than just J and K integrals). In this paper, the extension of the PILS functional to N-electron systems is investigated. With the example of an elementary primitive NO functional (BBC1) it is shown that current density matrix functional theory ground state functionals, which were designed to produce decent approximations to the total energy, fail to deliver a qualitatively correct structure of the (inverse) response function, due to essential deficiencies in the reconstruction of the two-body reduced density matrix (2RDM). We now deduce essential features of an N-electron functional from a wavefunction Ansatz: The extension of the two-electron Löwdin-Shull wavefunction to the N-electron case informs about the phase information. In this paper, applications of this extended Löwdin-Shull (ELS) functional are considered for the simplest case, ELS(1): one (dissociating) two-electron bond in the field of occupied (including core) orbitals. ELS(1) produces high quality ?{sub ?}(R) curves along the bond dissociation coordinate R for the molecules LiH, Li{sub 2}, and BH with the two outer valence electrons correlated. All of these results indicate that response properties are much more sensitive to deficiencies in the reconstruction of the 2RDM than the ground state energy, since derivatives of the functional with respect to both the NOs and the occupation numbers need to be accurate.

Meer, R. van; Gritsenko, O. V. [Faculty of Exact Sciences, Theoretical Chemistry, VU University, Amsterdam (Netherlands) [Faculty of Exact Sciences, Theoretical Chemistry, VU University, Amsterdam (Netherlands); WCU Program, Dep. of Chemistry, Pohang Univ. of Science and Techn., Pohang (Korea, Republic of); Baerends, E. J. [Faculty of Exact Sciences, Theoretical Chemistry, VU University, Amsterdam (Netherlands) [Faculty of Exact Sciences, Theoretical Chemistry, VU University, Amsterdam (Netherlands); WCU Program, Dep. of Chemistry, Pohang Univ. of Science and Techn., Pohang (Korea, Republic of); Department of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589 (Saudi Arabia)

2014-01-14T23:59:59.000Z

384

Linear induction accelerator  

DOE Patents [OSTI]

A linear induction accelerator includes a plurality of adder cavities arranged in a series and provided in a structure which is evacuated so that a vacuum inductance is provided between each adder cavity and the structure. An energy storage system for the adder cavities includes a pulsed current source and a respective plurality of bipolar converting networks connected thereto. The bipolar high-voltage, high-repetition-rate square pulse train sets and resets the cavities. 4 figs.

Buttram, M.T.; Ginn, J.W.

1988-06-21T23:59:59.000Z

385

Distinguishing triplet energy transfer and trap-assisted recombination in multi-color organic light-emitting diode with an ultrathin phosphorescent emissive layer  

SciTech Connect (OSTI)

An ultrathin layer of deep-red phosphorescent emitter tris(1-phenylisoquinoline) iridium (III) (Ir(piq){sub 3}) is inserted within different positions of the electron blocking layer fac-tris (1-phenylpyrazolato-N,C{sup 2?})-iridium(III) (Ir(ppz){sub 3}) to distinguish the contribution of the emission from the triplet exciton energy transfer/diffusion from the adjacent blue phosphorescent emitter and the trap-assisted recombination from the narrow band-gap emitter itself. The charge trapping effect of the narrow band-gap deep-red emitter which forms a quantum-well-like structure also plays a role in shaping the electroluminescent characteristics of multi-color organic light-emitting diodes. By accurately controlling the position of the ultrathin sensing layer, it is considerably easy to balance the white emission which is quite challenging for full-color devices with multiple emission zones. There is nearly no energy transfer detectable if 7 nm thick Ir(ppz){sub 3} is inserted between the blue phosphorescent emitter and the ultrathin red emitter.

Xue, Qin, E-mail: xueqin19851202@163.com; Liu, Shouyin [Department of Physical Science and Technology, Central China Normal University, Wuhan 430079 (China); Xie, Guohua; Chen, Ping; Zhao, Yi; Liu, Shiyong [State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012 (China)

2014-03-21T23:59:59.000Z

386

Energy transfer characteristics of silicate glass doped with Er{sup 3+}, Tm{sup 3+}, and Ho{sup 3+} for ?2 ?m emission  

SciTech Connect (OSTI)

A Er{sup 3+}/Tm{sup 3+}/Ho{sup 3+} tri-doped silicate glass with good thermal stability is prepared by melt-quenching method. Efficient ?2 ?m emission is observed under 808 nm laser excitation. It is found that the 2.0 ?m emission of Ho{sup 3+} can be enhanced under the excitation at 808 nm by incorporating Er{sup 3+} and Tm{sup 3+}. Based on the measurement of absorption spectra, the Judd–Ofelt intensity parameters, radiation emission probability, and branching ratio are calculated to evaluate the spectroscopic properties simultaneously. The maximum value of emission cross section of Ho{sup 3+} is 3.54 × 10{sup ?21} cm{sup 2} at 2008 nm. Additionally, the phonon assistance and the micro-parameters in the energy transfer process are quantitatively analyzed by using Dexter model. The energy transfer coefficient from Tm{sup 3+} to Ho{sup 3+} can reach as high as 21.44 × 10{sup ?40} cm{sup 6}/s, respectively. The emission property together with good thermal property indicates that Er{sup 3+}/Tm{sup 3+}/Ho{sup 3+} tri-doped silicate glass is a potential kind of laser glass for efficient 2 ?m laser.

Li, Ming; Liu, Xueqiang [Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 (China) [Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 (China); Graduate School of Chinese Academy of Sciences, Beijing 100039 (China); Guo, Yanyan [College of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022 (China)] [College of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022 (China); Hu, Lili [Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 (China)] [Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 (China); Zhang, Junjie [College of Materials Science and Engineering, China Jiliang University, Hangzhou 310 018 (China)] [College of Materials Science and Engineering, China Jiliang University, Hangzhou 310 018 (China)

2013-12-28T23:59:59.000Z

387

Backbone Additivity in the Transfer Model of Protein Solvation...  

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

Solvation. Abstract: The transfer model implying additivity of the peptide backbone free energy of transfer is computationally tested. Molecular dynamics simulations are used...

388

Digital Transfer Growth of Patterned 2D Metal Chalcogenides by...  

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

for Energy Digital Transfer Growth of Patterned 2D Metal Chalcogenides by Confined Nanoparticle Evaporation October 28, 2014 (a) Illustration of the digital transfer growth...

389

Project Profile: Dual-Purpose Heat Transfer Fluids for CSP  

Broader source: Energy.gov [DOE]

Argonne National Laboratory, under an ARRA CSP Award, is developing advanced heat transfer fluids (HTFs) by incorporating multifunctional engineered nanoparticles in heat transfer applications and thermal energy storage.

390

Generic Mechanism of Optimal Energy Transfer Efficiency: A Scaling Theory of the Mean First-Passage Time in Exciton Systems  

E-Print Network [OSTI]

, MIT, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA 2 Physics Department, Zhejiang as for designing efficient solar energy devices. Multidimensional spectra have allowed detailed probes of EET

Cao, Jianshu

391

Identifying two steps in the internal wave energy cascade  

E-Print Network [OSTI]

energy transfer from the semidiurnal internal tide at Kaenaof the internal tide can transfer energy from a coher- entthe internal tide was transferring energy to the subharmonic

Sun, Oliver Ming-Teh

2010-01-01T23:59:59.000Z

392

8 IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 17, NO. 1, JANUARY 2002 Fundamental Limits on Energy Transfer and Circuit  

E-Print Network [OSTI]

8 IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 17, NO. 1, JANUARY 2002 Fundamental Limits on Energy, Member, IEEE Abstract--This work investigates fundamental limits on electromechanical energy conversion have not been part of the tide of miniaturization and integration advances from which signal

Sanders, Seth

393

THE JOURNAL OF CHEMICAL PHYSICS 137, 174111 (2012) Efficient energy transfer in light-harvesting systems: Quantum-classical  

E-Print Network [OSTI]

Da Road, Hangzhou, Zhejiang 310027, China 2 Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, Massachusetts 02139, USA (Received 26 June 2012; accepted 9 October systems have developed optimal and robust strategies of converting solar energy to chemical energy

Cao, Jianshu

394

Physical Model for the Study of Mass and Energy Transfers in the Non-Saturated Layer of Soil Located Above a Solar Energy Storage Zone  

Science Journals Connector (OSTI)

The efficiency of energy storage in a saturated layer is linked to a great extend to the energy and matter losses through the non-saturated layer of soil lying above the saturated layer used as a storage zone....

C. Saix; J. C. Benet; G. Dellavalle; P. Jouanna

1984-01-01T23:59:59.000Z

395

Building Thermal Envelope Systems and Materials (BTESM) and research utilization/technology transfer progress report for DOE (Department of Energy) Office of Buildings Energy Research  

SciTech Connect (OSTI)

The Monthly Report of the Building Thermal Envelope Systems and Materials (BTESM) Program is a monthly update of both in-house ORNL projects and subcontract activities in the research areas of building materials, wall systems, foundations, roofs, building diagnostics, and research utilization and technology transfer. Presentations are not stand-alone paragraphs every month. Their principal values are the short-time lapse between accomplishment and reporting and their evolution over a period of several months.

Burn, G. (comp.)

1990-08-01T23:59:59.000Z

396

Testing thermocline filler materials and molten-salt heat transfer fluids for thermal energy storage systems used in parabolic trough solar power plants.  

SciTech Connect (OSTI)

Parabolic trough power systems that utilize concentrated solar energy to generate electricity are a proven technology. Industry and laboratory research efforts are now focusing on integration of thermal energy storage as a viable means to enhance dispatchability of concentrated solar energy. One option to significantly reduce costs is to use thermocline storage systems, low-cost filler materials as the primary thermal storage medium, and molten nitrate salts as the direct heat transfer fluid. Prior thermocline evaluations and thermal cycling tests at the Sandia National Laboratories' National Solar Thermal Test Facility identified quartzite rock and silica sand as potential filler materials. An expanded series of isothermal and thermal cycling experiments were planned and implemented to extend those studies in order to demonstrate the durability of these filler materials in molten nitrate salts over a range of operating temperatures for extended timeframes. Upon test completion, careful analyses of filler material samples, as well as the molten salt, were conducted to assess long-term durability and degradation mechanisms in these test conditions. Analysis results demonstrate that the quartzite rock and silica sand appear able to withstand the molten salt environment quite well. No significant deterioration that would impact the performance or operability of a thermocline thermal energy storage system was evident. Therefore, additional studies of the thermocline concept can continue armed with confidence that appropriate filler materials have been identified for the intended application.

Kelly, Michael James; Hlava, Paul Frank; Brosseau, Douglas A.

2004-07-01T23:59:59.000Z

397

Huge market forecast for linear LDPE  

Science Journals Connector (OSTI)

Huge market forecast for linear LDPE ... It now appears that the success of the new technology, which rests largely on energy and equipment cost savings, could be overwhelming. ...

1980-08-25T23:59:59.000Z

398

A database of frequency distributions of energy depositions in small-size targets by electrons and ions  

Science Journals Connector (OSTI)

......frequency distributions of energy depositions in small-size...77204 Texas, USA Linear energy transfer (LET) is an average...Hahn K. Considerations on a audit of the quality factor. Radiat...distributions for protons with energies between 50 and 200 MeV determined......

H. Nikjoo; S. Uehara; D. Emfietzoglou; L. Pinsky

2011-02-01T23:59:59.000Z

399

White light emission and energy transfer in Dy3+/Eu3+ co-doped BaLa2WO7 phosphors  

Science Journals Connector (OSTI)

Abstract Tunable full color emissive BaLa1.75 ? xWO7:0.25Dy3+, xEu3+ phosphors which peaked at 484 nm (blue), 572 nm (yellow), 593 nm (orange), and 617 nm (red) were synthesized by the traditional solid-state reaction method. The as-synthesized phosphors were characterized by X-ray power diffraction, diffused reflectance spectra, photoluminescence decay curves, photoluminescence excitation and emission spectra. The photoluminescence excitation spectra range from 200 to 500 nm, including an O2??W6+ charge transfer band and several 4f–4f transition peaks of Dy3+ and Eu3+. Co-doping with Eu3+ compensated the red emission component of the BaLa2WO7:Dy3+ phosphor. Furthermore, the energy transfer from Dy3+ to Eu3+ was confirmed based on the luminescence spectra and decay curves. The intense white light emissions are suggestive exploration for the potential phosphor for optical materials applications used in the ultraviolet excited white light emitting diodes.

Yaomin Deng; Shuangping Yi; Jun Huang; Jieqiang Xian; Weiren Zhao

2014-01-01T23:59:59.000Z

400

Heat transfer coefficient saturation in superconducting Nb tunnel junctions contacted to a NbTiN circuit and an Au energy relaxation layer  

E-Print Network [OSTI]

In this paper we present the experimental realization of a Nb tunnel junction connected to a high-gap superconducting NbTiN embedding circuit. We investigate relaxation of nonequilibrium quasiparticles in a small volume Au layer between the Nb tunnel junction and the NbTiN circuit. We find a saturation in the effective heat-transfer coefficient consistent with a simple theoretical model. This saturation is determined by the thickness of the Au layer. Our findings are important for the design of the ideal Au energy relaxation layer for practical SIS heterodyne mixers and we suggest two geometries, one, using a circular Au layer and, two, using a half-circular Au layer. Our work is concluded with an outlook of our future experiments.

Selig, Stefan; Jacobs, Karl; Schultz, Michael; Honingh, Netty

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "linear energy transfer" 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

Proton Transfer Studied Using a Combined Ab Initio Reactive Potential Energy Surface with Quantum Path Integral Methodology  

Science Journals Connector (OSTI)

While molecular dynamics (MD) simulations of large-scale assemblies for hundreds of nanoseconds and even for a few microseconds are permissible using current terascale and emergent petascale high-performance computing infrastructures,(1-3) the majority of these scientific applications involving conformational sampling or molecular association processes cannot model chemical reactions. ... Much of current force field research focuses on the development of accurate and reliable interactions for describing protein structures, solvation energies, and hybrid bioinorganic material properties. ... A grid of geometries obtained from relaxed scans at the Hartree?Fock level and the cc-pVTZ basis set was used in the DG-EVB energy calculations. ...

Kim F. Wong; Jason L. Sonnenberg; Francesco Paesani; Takeshi Yamamoto; Ji?í Vaní?ek; Wei Zhang; H. Bernhard Schlegel; David A. Case; Thomas E. Cheatham; III; William H. Miller; Gregory A. Voth

2010-08-05T23:59:59.000Z

402

Manipulator mounted transfer platform  

DOE Patents [OSTI]

A transfer platform for the conveyance of objects by a manipulator includes a bed frame and saddle clamp secured along an edge of the bed frame and adapted so as to secure the bed frame to a horizontal crosspiece of the manipulator. The platform may thus move with the manipulator in a reciprocal linear path defined by a guide rail. A bed insert may be provided for the support of conveyed objects and a lifting bail may be provided to permit the manipulator arm to install the bed frame upon the crosspiece under remote control.

Dobbins, James C. (Idaho Falls, ID); Hoover, Mark A. (Idaho Falls, ID); May, Kay W. (Idaho Falls, ID); Ross, Maurice J. (Pocatello, ID)

1990-01-01T23:59:59.000Z

403

Densification of functional plasma polymers by momentum transfer during film growth  

SciTech Connect (OSTI)

Functional plasma polymers were deposited from pure ethylene discharges and with the addition of carbon dioxide or ammonia. The incorporation of oxygen and nitrogen-containing functional groups depends on the fragmentation in the gas phase as well as on the densification during film growth. While a minimum energy per deposited carbon atom is required for cross-linking, the densification and accompanying reduction of functional group incorporation was found to scale linearly with momentum transfer through ion bombardment during film growth.

Hegemann, Dirk; Koerner, Enrico; Blanchard, Noemi; Drabik, Martin; Guimond, Sebastien [Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen (Switzerland)

2012-11-19T23:59:59.000Z

404

Linear degeneracy in the semiclassical atom  

Science Journals Connector (OSTI)

If the angular and radial quantum numbers of states with the same binding energy satisfy a linear relation, as is the situation in the Coulomb potential, the spectrum is said to be linearly degenerate. We present a detailed study of the consequences of such linear degeneracy in atomic potentials. One of the results is a new, and more general, derivation of Scott’s correction to the Thomas-Fermi energy.

Berthold-Georg Englert and Julian Schwinger

1985-07-01T23:59:59.000Z

405

NREL: Technology Transfer - Commercialization Programs  

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

Commercialization Programs Commercialization Programs Through our commercialization programs, we help accelerate the transfer of renewable energy and energy efficiency technologies into the marketplace. Clean Energy Alliance The Clean Energy Alliance is an alliance of the nation's top business incubators that provide business services to nascent clean energy entrepreneurs. NREL partners with these elite business incubators to help foster the growth of robust clean energy businesses and commercialize their technologies. Colorado Center for Renewable Energy Economic Development Formerly the Colorado Cleantech Initiative program, the Colorado Center for Renewable Energy Economic Development (CREED) is a joint effort between NREL, the State of Colorado, and affiliated stakeholders to provide

406

Free energy, enthalpy, and entropy changes for the transference of zinc chloride from enthylene glycol to water solutions  

E-Print Network [OSTI]

in ethylene glycol is coupled with a silver-silver chloride half-cell, also containing zinc chloride dissolved in ethylene glycol, and if a similar cell with zinc chloride in aqueous solution are put back to back by use of a common amalgam reservoir...FREE ENERGY, ENTlDKPY, AND ENTROPY CHANGES FOR THE TRANCE OF ZINC CHLORIDE FROM ETHYLENE GLYCOL TO WATER SOLUTIONS A Thesis JOHN NICHOLAS'8 LOMONTE Submitted to the Graduate School of' the Agricultural and. Mechanical College of' Texas...

Lomonte, John Nicholas

1960-01-01T23:59:59.000Z

407

Efficient Phase-Change Materials: Development of a Low-Cost Thermal Energy Storage System Using Phase-Change Materials with Enhanced Radiation Heat Transfer  

SciTech Connect (OSTI)

HEATS Project: USF is developing low-cost, high-temperature phase-change materials (PCMs) for use in thermal energy storage systems. Heat storage materials are critical to the energy storage process. In solar thermal storage systems, heat can be stored in these materials during the day and released at night—when the sun is not out—to drive a turbine and produce electricity. In nuclear storage systems, heat can be stored in these materials at night and released to produce electricity during daytime peak-demand hours. Most PCMs do not conduct heat very well. Using an innovative, electroless encapsulation technique, USF is enhancing the heat transfer capability of its PCMs. The inner walls of the capsules will be lined with a corrosion-resistant, high-infrared emissivity coating, and the absorptivity of the PCM will be controlled with the addition of nano-sized particles. USF’s PCMs remain stable at temperatures from 600 to 1,000°C and can be used for solar thermal power storage, nuclear thermal power storage, and other applications.

None

2011-12-05T23:59:59.000Z

408

Mammary Neoplasia in the Rat following High-Energy Neutron Irradiation  

Science Journals Connector (OSTI)

...traversed by more than 1 secondary par tide, generally a proton. At the doses of...constant over a wide range of neutron energies. The value of b would vary depending upon the relative proportion of high linear-energy-transfer radiation pen unit of dose...

James L. Montour; Richard C. Hard, Jr.; and Roger E. Flora

1977-08-01T23:59:59.000Z

409

Data Transfer Nodes Yield Results!  

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

DTN DTN Data Transfer Nodes Yield Results August 1, 2011 | Tags: Accelerator Science, Data Transfer, ESnet Linda Vu, +1 510 495 2402, lvu@lbl.gov The ability to reliably move and share data around the globe is essential to scientific collaboration, that's why three Department of Energy (DOE) Scientific Computing Centers-Argonne and Oak Ridge Leadership Computing Facilities, and the National Energy Research Scientific Computing Center (NERSC)-have teamed up to focus on optimizing wide area network (WAN) transfers. This ongoing effort began several years ago when each site deployed dedicated transfer nodes (DTNs), optimized for carrying data between the DOE facilities. Today, engineers from each site continue to meet regularly with DOE's Energy Sciences Network staff (ESnet) to develop strategies

410

Enhanced Luminescence of NaY0.6–xCe0.1Gd0.3EuxF4 Nanorods by Energy Transfers between Ce3+, Gd3+, and Eu3+  

Science Journals Connector (OSTI)

Enhanced Luminescence of NaY0.6–xCe0.1Gd0.3EuxF4 Nanorods by Energy Transfers between Ce3+, Gd3+, and Eu3+ ... On the whole, the introduction of an elevated amount of Eu3+ dopants in the host lattice would decrease the Ce···Eu interatomic distance and thus shorten the average traveling distance for the excitation energies. ...

Bing Chen; Xvsheng Qiao; Dengfeng Peng; Xianping Fan

2014-12-02T23:59:59.000Z

411

Multilevel bioluminescence tomography based on radiative transfer equation  

E-Print Network [OSTI]

Multilevel bioluminescence tomography based on radiative transfer equation Part 2: total variation with both l1 and total- variation norm for bioluminescence tomography based on radiative transfer equation, Radiative Transfer (Dover Publications, 1960). 14. K. M. Case and P. F. PF Zweifel, Linear Transport Theory

Soatto, Stefano

412

Multi-model Preconditioning for Radiative Transfer Problems  

E-Print Network [OSTI]

, multigrid, radiative transfer, neutron transport, linear Boltzmann equation 2000 MSC: 65N22, 85A25, 65N30 1 and radiation dominated regions must be combined. Since the character of the equation is very different in those of the monochromatic radiative transfer problem leads to a diffusion equation, approximating the radiative transfer

413

Free energy balance in gyrokinetic turbulence  

SciTech Connect (OSTI)

Free energy plays an important role in gyrokinetic theory, since it is known to be a nonlinear invariant. Its evolution equations are derived and analyzed for the case of ion temperature gradient driven turbulence, using the formalism adopted in the Gene code. In particular, the ion temperature gradient drive, the collisional dissipation as well as entropy/electrostatic energy transfer channels represented by linear curvature and parallel terms are analyzed in detail.

Banon Navarro, A.; Morel, P.; Albrecht-Marc, M.; Carati, D. [Statistical and Plasma Physics Laboratory, Universite Libre de Bruxelles (Belgium); Merz, F.; Goerler, T.; Jenko, F. [Max-Planck-Institut fuer Plasmaphysik, Boltzmannstr. 2, D-85748 Garching (Germany)

2011-09-15T23:59:59.000Z

414

Technology Transfer Reports  

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

Advanced Research Projects Agency-Energy (ARPA-E) Advanced Research Projects Agency-Energy (ARPA-E) Oil & Gas Technology Transfer Initiatives USEFUL LINKS Association of University Technology Managers (AUTM) Federal Laboratory Consortium (FLC) FLC Technology Locator Feedback Contact us about Tech Transfer: Mary.McManmon@science.doe.gov Mary McManmon, 202-586-3509 link to Adobe PDF Reader link to Adobe Flash player Reports Navigate Home About Us Contact Information Hide Thumbs First Previous Pause Next Last Set Speed Slideshow speed: 5 seconds Move Autoinduction system New Image Set Autoinduction Autoinduction System The award winning Overnight Express(tm) Autoinduction System developed at BNL simplifies protein production in the widely used T7 gene expression system. Decontamination Foam-based decontamination

415

Recyclable transmission line (RTL) and linear transformer driver (LTD) development for Z-pinch inertial fusion energy (Z-IFE) and high yield.  

SciTech Connect (OSTI)

Z-Pinch Inertial Fusion Energy (Z-IFE) complements and extends the single-shot z-pinch fusion program on Z to a repetitive, high-yield, power plant scenario that can be used for the production of electricity, transmutation of nuclear waste, and hydrogen production, all with no CO{sub 2} production and no long-lived radioactive nuclear waste. The Z-IFE concept uses a Linear Transformer Driver (LTD) accelerator, and a Recyclable Transmission Line (RTL) to connect the LTD driver to a high-yield fusion target inside a thick-liquid-wall power plant chamber. Results of RTL and LTD research are reported here, that include: (1) The key physics issues for RTLs involve the power flow at the high linear current densities that occur near the target (up to 5 MA/cm). These issues include surface heating, melting, ablation, plasma formation, electron flow, magnetic insulation, conductivity changes, magnetic field diffusion changes, possible ion flow, and RTL mass motion. These issues are studied theoretically, computationally (with the ALEGRA and LSP codes), and will work at 5 MA/cm or higher, with anode-cathode gaps as small as 2 mm. (2) An RTL misalignment sensitivity study has been performed using a 3D circuit model. Results show very small load current variations for significant RTL misalignments. (3) The key structural issues for RTLs involve optimizing the RTL strength (varying shape, ribs, etc.) while minimizing the RTL mass. Optimization studies show RTL mass reductions by factors of three or more. (4) Fabrication and pressure testing of Z-PoP (Proof-of-Principle) size RTLs are successfully reported here. (5) Modeling of the effect of initial RTL imperfections on the buckling pressure has been performed. Results show that the curved RTL offers a much greater buckling pressure as well as less sensitivity to imperfections than three other RTL designs. (6) Repetitive operation of a 0.5 MA, 100 kV, 100 ns, LTD cavity with gas purging between shots and automated operation is demonstrated at the SNL Z-IFE LTD laboratory with rep-rates up to 10.3 seconds between shots (this is essentially at the goal of 10 seconds for Z-IFE). (7) A single LTD switch at Tomsk was fired repetitively every 12 seconds for 36,000 shots with no failures. (8) Five 1.0 MA, 100 kV, 100 ns, LTD cavities have been combined into a voltage adder configuration with a test load to successfully study the system operation. (9) The combination of multiple LTD coaxial lines into a tri-plate transmission line is examined. The 3D Quicksilver code is used to study the electron flow losses produced near the magnetic nulls that occur where coax LTD lines are added together. (10) Circuit model codes are used to model the complete power flow circuit with an inductive isolator cavity. (11) LTD architectures are presented for drivers for Z-IFE and high yield. A 60 MA LTD driver and a 90 MA LTD driver are proposed. Present results from all of these power flow studies validate the whole LTD/RTL concept for single-shot ICF high yield, and for repetitive-shot IFE.

Sharpe, Robin Arthur; Kingsep, Alexander S. (Kurchatov Institute, Moscow, Russia); Smith, David Lewis; Olson, Craig Lee; Ottinger, Paul F. (Naval Research Laboratory, Washington, DC); Schumer, Joseph Wade (Naval Research Laboratory, Washington, DC); Welch, Dale Robert (Voss Scientific, Albuquerque, NM); Kim, Alexander (High Currents Institute, Tomsk, Russia); Kulcinski, Gerald L. (University of Wisconsin, Madison, WI); Kammer, Daniel C. (University of Wisconsin, Madison, WI); Rose, David Vincent (Voss Scientific, Albuquerque, NM); Nedoseev, Sergei L. (Kurchatov Institute, Moscow, Russia); Pointon, Timothy David; Smirnov, Valentin P. (Kurchatov Institute, Moscow, Russia); Turgeon, Matthew C.; Kalinin, Yuri G. (Kurchatov Institute, Moscow, Russia); Bruner, Nichelle "Nicki" (Voss Scientific, Albuquerque, NM); Barkey, Mark E. (University of Alabama, Tuscaloosa, AL); Guthrie, Michael (University of Wisconsin, Madison, WI); Thoma, Carsten (Voss Scientific, Albuquerque, NM); Genoni, Tom C. (Voss Scientific, Albuquerque, NM); Langston, William L.; Fowler, William E.; Mazarakis, Michael Gerrassimos

2007-01-01T23:59:59.000Z

416

Electron Transfer  

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

3 3 Pierre Kennepohl1,2 and Edward Solomon1* 1Department of Chemistry, Stanford University, Stanford, CA 94305 Electron transfer, or the act of moving an electron from one place to another, is amongst the simplest of chemical processes, yet certainly one of the most critical. The process of efficiently and controllably moving electrons around is one of the primary regulation mechanisms in biology. Without stringent control of electrons in living organisms, life could simply not exist. For example, photosynthesis and nitrogen fixation (to name but two of the most well-known biochemical activities) are driven by electron transfer processes. It is unsurprising, therefore, that much effort has been placed on understanding the fundamental principles that control and define the simple act of adding and/or removing electrons from chemical species.

417

TECHNOLOGY TRANSFER  

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

404-NOV. 1, 2000 404-NOV. 1, 2000 TECHNOLOGY TRANSFER COMMERCIALIZATION ACT OF 2000 VerDate 11-MAY-2000 04:52 Nov 16, 2000 Jkt 089139 PO 00000 Frm 00001 Fmt 6579 Sfmt 6579 E:\PUBLAW\PUBL404.106 APPS27 PsN: PUBL404 114 STAT. 1742 PUBLIC LAW 106-404-NOV. 1, 2000 Public Law 106-404 106th Congress An Act To improve the ability of Federal agencies to license federally owned inventions. Be it enacted by the Senate and House of Representatives of the United States of America in Congress assembled, SECTION 1. SHORT TITLE. This Act may be cited as the ''Technology Transfer Commer- cialization Act of 2000''. SEC. 2. FINDINGS. The Congress finds that- (1) the importance of linking our unparalleled network of over 700 Federal laboratories and our Nation's universities with United States industry continues to hold great promise

418

Data Transfer | Argonne Leadership Computing Facility  

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

Data Transfer Data Transfer The Blue Gene/P connects to other research institutions using a total of 20 GBs of public network connectivity. This allows scientists to transfer datasets to and from other institutions over fast research networks such as the Energy Science Network (ESNet) and the Metropolitan Research and Education Network (MREN). Data Transfer Node Overview Two data transfer nodes are available to all Intrepid users, that provide the ability to perform wide and local area data transfers. dtn01.intrepid.alcf.anl.gov (alias for gs1.intrepid.alcf.anl.gov) dtn02.intrepid.alcf.anl.gov (alias for gs2.intrepid.alcf.anl.gov) Data Transfer Utilities HSI/HTAR HSI and HTAR allow users to transfer data to and from HPSS Using HPSS on Intrepid GridFTP GridFTP provides the ability to transfer data between trusted sites such

419

lgebra Linear Mauro Rincon  

E-Print Network [OSTI]

8.1 Álgebra Linear Mauro Rincon Márcia Fampa Aula 8: Soluções de Sistemas de Equações Lineares #12

Cabral, Marco

420

NETL: Tech Transfer  

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

Licensing & Technology Transfer Available Technologies Partnerships and Licensing Success Stories Contact Us Technology transfer is the process of transferring new technologies...

Note: This page contains sample records for the topic "linear energy transfer" 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

AndreiG.Fedorov Title: George W. Woodruff Professorship in Heat Transfer, Combustion and  

E-Print Network [OSTI]

AndreiG.Fedorov Title: George W. Woodruff Professorship in Heat Transfer, Combustion and Energy Research Areas of Interest Heat Transfer, combustion, and energy systems Bioengineering, lab ionization and imaging for bioanalytical mass spectrometry Thermal radiation heat transfer Thermal

Garmestani, Hamid

422

Angle-differential and momentum-transfer cross sections for e-+Rb, Cs, and Fr collisions at low energies: 3Fo shape resonances in Rb-, Cs-, and Fr- ions  

Science Journals Connector (OSTI)

Based on the relativistic Dirac R-matrix method, we calculate angle-dependent and momentum-transfer cross sections for electron scattering by Rb, Cs, and Fr atoms at impact energies below 3 eV. Our results for momentum transfer for e-+Rb and Cs collisions are compared with available data from swarm experiments. We find clear evidence for a Cs-(3Fo) shape resonance at 1.528 eV, in excellent agreement with angle-dependent electron-scattering measurements. We analyze and compare the 3Fo shape resonance in e-+Rb, Cs, and Fr elastic collisions.

C. Bahrim and U. Thumm

2001-07-17T23:59:59.000Z

423

Accelerating the transfer in Technology Transfer  

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

Accelerating the transfer in Technology Transfer Community Connections: Your link to news and opportunities from Los Alamos National Laboratory Latest Issue: Dec. 2014 - Jan. 2015...

424

DOE Technology Transfer Website Features New Tool to Search Tech Transfer  

Office of Scientific and Technical Information (OSTI)

Technology Transfer Website Features New Tool to Search Tech Transfer Technology Transfer Website Features New Tool to Search Tech Transfer Information from DOE National Laboratories December 3, 2012 DOE Technology Transfer Website Features New Tool to Search Tech Transfer Information from DOE National Laboratories The Department of Energy (DOE) Technology Transfer website has a new search feature that for the first time allows searching of technology transfer information across the DOE national laboratories. The new tool enables users to search all of DOE's technology transfer information, including inventions, patents and other applied research, available from DOE's national laboratories in real time. Using web-crawling technology, the search capability allows users to enter a single query for a technology transfer term; the search feature returns a

425

Rural Solar Cookers, an Alternative to Reduce the Timber Resource Extraction through the Use of Renewable Energy Sources: Technology Transfer and Monitoring Project  

Science Journals Connector (OSTI)

Abstract In this paper, it's presented an integral project of technology transfer. Based in the development of several prototypes of solar cookers, all of them with our own design and construction, whose functionality is to compound parabolic concentrators of revolution, this project performed how to implement this ecotechnology. The prototype implemented uses mirror polished aluminum reflectors, aluminum pressure cooker manual tracking device and solar tilt. With the help of social programs, 70 solar cookers were implemented in an indigenous community in Michoacán, México; previously it was implemented a diagnostic of timber resources consumption to each beneficiary family. Also, firing tests were performed with various prototypes plots to select the best one with thermal and ergonomic characteristics. The project expects to reduce the consumption of timber as fuel used for cooking by 30%; to encourage the use of renewable energy, to mitigate respiratory diseases caused by the inhalation of combustion smoke and help the family's economy. Currently we are working with the monitoring to quantify the improvements achieved in consumption-appropriation. There is already an user manual of maintenance and construction of solar cookers in the indigenous language and the project wants to be the basis for future Eco technologies’ implementations.

Luis Bernardo López Sosa; Mauricio González Avilés; Dante González Pérez; Yuritzi Solís Gutiérrez

2014-01-01T23:59:59.000Z

426

Linear chain magnetism  

Science Journals Connector (OSTI)

Linear chain magnetism ... A brief introduction to this concept, which is also called lower dimensional magnetism. ...

Richard L. Carlin

1991-01-01T23:59:59.000Z

427

SRNL - Technology Transfer - Ombudsman  

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

Ombudsman Ombudsman Ombudsman Program Policy The Department of Energy and its management and operating contractors (M & O Contractors) engaging in technology partnership activities, share a mutual objective to ensure complete fairness in the transfer of federally funded technologies into the marketplace for the benefit of the U.S. economy. This includes an interest in open lines of communication and the early identification of issues, complaints and disputes between contractors and their existing or potential partners. The Technology Transfer Ombudsman Program provides an independent point of contact for concerns about technology transfer i SRS Sign ssues, complaints and disputes. The mission of the Ombudsman Program is to elevate to the appropriate SRNS officials the information needed to identify and resolve problems thereby improving satisfaction with SRNS practices and reducing the occasion for formal disputes and litigation. The Ombudsman will not be involved in the merits of cases that are the subject of ongoing dispute resolution or litigation, or investigation incidents thereto. The Ombudsman is not established to be a super-administrator, re-doing what specialized officials have already done. Rather, the Ombudsman is to ensure that appropriate SRNS officials consider all pertinent information when deciding the company's position on a technology transfer complaint. To request forms or acquire additional information contact: Michael Wamstad, 803-725-3751 or mike.wamstad@srs.gov.

428

Microsoft PowerPoint - PaulGottliebTechTransfer | Department...  

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

Microsoft PowerPoint - PaulGottliebTechTransfer More Documents & Publications Alliance For Sustainable Energy AllianceForSustainableEnergy-Letter.pdf Government Practices...

429

Wireless Power Transfer  

ScienceCinema (OSTI)

Wireless Power Transfer is an innovative approach using magnetic resonance coupling of air core transformers designed for today's growing plug-in electric vehicle market. This technology can provide a convenient, safe and flexible means to charge electric vehicles under stationary and dynamic conditions. Plug-in Electric Vehicles (PEV) are burdened by the need for cable and plug charger, galvanic isolation of the on-board electronics, bulk and cost of this charger and the large energy storage system (ESS) packs needed. With a system where you have to physically plug in there are a number of occasions where the owner could very well forget to charge the vehicle. For stationary applications (like charging of a PHEV at home), ORNL's innovative wireless power transfer technology adds a convenience factor compared to actually plugging in which will mean that the vehicle will have a full charge every morning. Electric vehicle charging must be safe, compact and efficient in order to be convenient for customers. By reconfiguring the transformer and altering the resonance frequency, energy is transferred to the battery with lower energy losses and with fewer demands on the primary circuit by the rest of the transformer system. The ORNL discovery shows that sufficient power for the battery can be transferred from the primary to secondary circuits without significant energy losses if the operating frequency is set at 50% to 95% of the resonance frequency of the circuit. The electrical power is then transmitted to the chargeable battery, which is electrically coupled to the secondary circuit through the air core transformer. Some advantages include: Reduced energy losses during transfer of energy to the battery; A charge potential that is relatively unaffected by up to 25% misalignment of vehicle; and Other receiving components draw less power from the primary circuit. These advantages allow wireless power technology applications to expand at the workplace and beyond as the demand for EV rises. For vehicles that operate over a fixed route such as busses and shuttle vehicles, Wireless Power Transfer (WPT) means that a smaller battery pack can be used. In the traditional system, the battery pack is designed to accommodate the needs of the entire route or shift. With WPT the battery can be downsized because it can be charged when the vehicle stops on its route (a rental car shuttle bus, for example, can charge when it waits in the terminal and again when it waits at the rental car place. Thus the battery only needs enough charge to get to the next stop. This decrease in battery size means significant cost savings to electrify the vehicle. This technology enables efficient "opportunity charging stations" for predefined routes and planned stops reducing down time. Charging can occur in minutes. This improvement also eliminates the harmful emissions that occur in garages while buses are at idle during charging. In larger cities, dynamic charging offers an even greater impact utilizing existing infrastructure. As vehicles travel along busy freeways and interstate systems, wireless charging can occur while the vehicle is in motion. With this technology a vehicle essentially has unlimited electric range while using a relatively small battery pack. In-motion charging stations use vehicle sensors to alert the driver. Traveling at normal speeds, sensors establish in-motion charging. WPT transmit pads sequentially energize to the negotiated power level based on vehicle speed and its requested charging energy. Lower power when vehicle speed is slow and much higher power for faster moving vehicles. Vehicle to Infrastructure communications (V2I) coordinates WPT charging level according to on-board battery pack state-of-charge. V2I activates the roadway transmit pads placing them in standby mode and negotiates charging fee based on prevailing grid rate and vehicle energy demand. Dynamic charging would allow electricity to supply a very large fraction of the energy for the transportation sector and reduce greatly petroleum consump

None

2013-11-19T23:59:59.000Z

430

Technology Transfer: Site Map  

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

Site Map Site Map About Us About Technology Transfer Contact Us Available Technologies Advanced Materials Biofuels Biotechnology and Medicine Developing World Energy Environmental Technologies Imaging and Lasers Ion Sources and Beam Technologies Nanotechnology and Microtechnology Software and Information Technology For Industry Licensing Overview Frequently Asked Questions Partnering with Berkeley Lab Licensing Interest Form Receive New Tech Alerts For Researchers What You Need to Know and Do The Tech Transfer Process Forms Record of Invention (Word doc -- please do not use earlier PDF version of the form) Software Disclosure and Abstract (PDF, use Adobe Acrobat or Adobe Reader 9 and up ONLY to complete the form) Policies Conflict of Interest Outside Empolyment Export Control FAQs for Researchers

431

Proton-Coupled Electron Transfer  

SciTech Connect (OSTI)

Proton-Coupled Electron Transfer (PCET) describes reactions in which there is a change in both electron and proton content between reactants and products. It originates from the influence of changes in electron content on acid?base properties and provides a molecular-level basis for energy transduction between proton transfer and electron transfer. Coupled electron?proton transfer or EPT is defined as an elementary step in which electrons and protons transfer from different orbitals on the donor to different orbitals on the acceptor. There is (usually) a clear distinction between EPT and H-atom transfer (HAT) or hydride transfer, in which the transferring electrons and proton come from the same bond. Hybrid mechanisms exist in which the elementary steps are different for the reaction partners. EPT pathways such as PhO•/PhOH exchange have much in common with HAT pathways in that electronic coupling is significant, comparable to the reorganization energy with H{sub DA} ~ ?. Multiple-Site Electron?Proton Transfer (MS-EPT) is an elementary step in which an electron?proton donor transfers electrons and protons to different acceptors, or an electron?proton acceptor accepts electrons and protons from different donors. It exploits the long-range nature of electron transfer while providing for the short-range nature of proton transfer. A variety of EPT pathways exist, creating a taxonomy based on what is transferred, e.g., 1e{sup -}/2H{sup +} MS-EPT. PCET achieves “redox potential leveling” between sequential couples and the buildup of multiple redox equivalents, which is of importance in multielectron catalysis. There are many examples of PCET and pH-dependent redox behavior in metal complexes, in organic and biological molecules, in excited states, and on surfaces. Changes in pH can be used to induce electron transfer through films and over long distances in molecules. Changes in pH, induced by local electron transfer, create pH gradients and a driving force for long-range proton transfer in Photosysem II and through other biological membranes. In EPT, simultaneous transfer of electrons and protons occurs on time scales short compared to the periods of coupled vibrations and solvent modes. A theory for EPT has been developed which rationalizes rate constants and activation barriers, includes temperature- and driving force (?G)-dependences implicitly, and explains kinetic isotope effects. The distance-dependence of EPT is dominated by the short-range nature of proton transfer, with electron transfer being far less demanding.Changes in external pH do not affect an EPT elementary step. Solvent molecules or buffer components can act as proton donor acceptors, but individual H2O molecules are neither good bases (pK{sub a}(H{sub 3}O{sup +}) = ?1.74) nor good acids (pK{sub a}(H{sub 2}O) = 15.7). There are many examples of mechanisms in chemistry, in biology, on surfaces, and in the gas phase which utilize EPT. PCET and EPT play critical roles in the oxygen evolving complex (OEC) of Photosystem II and other biological reactions by decreasing driving force and avoiding high-energy intermediates.

Weinberg, Dave; Gagliardi, Christopher J.; Hull, Jonathan F; Murphy, Christine Fecenko; Kent, Caleb A.; Westlake, Brittany C.; Paul, Amit; Ess, Daniel H; McCafferty, Dewey Granville; Meyer, Thomas J

2012-01-01T23:59:59.000Z

432

Vibrational mode and collision energy effects on reaction of H{sub 2}CO{sup +} with C{sub 2}H{sub 2}: Charge state competition and the role of Franck-Condon factors in endoergic charge transfer  

SciTech Connect (OSTI)

The effects of collision energy (E{sub col}) and six different H{sub 2}CO{sup +} vibrational states on the title reaction have been studied over the center-of-mass E{sub col} range from 0.1 to 2.6 eV, including measurements of product ion recoil velocity distributions. Ab initio and Rice-Ramsperger-Kassel-Marcus calculations were used to examine the properties of complexes and transition states that might be important in mediating the reaction. Reaction is largely direct, despite the presence of multiple deep wells on the potential surface. Five product channels are observed, with a total reaction cross section at the collision limit. The competition among the major H{sub 2}{sup +} transfer, hydrogen transfer, and proton transfer channels is strongly affected by E{sub col} and H{sub 2}CO{sup +} vibrational excitation, providing insight into the factors that control competition and charge state 'unmixing' during product separation. One of the more interesting results is that endoergic charge transfer appears to be controlled by Franck-Condon factors, implying that it occurs at large inter-reactant separations, contrary to the expectation that endoergic reactions should require intimate collisions to drive the necessary energy conversion.

Liu Jianbo; Van Devener, Brian; Anderson, Scott L. [Department of Chemistry, University of Utah, Salt Lake City, Utah 84112 (United States)

2005-11-22T23:59:59.000Z

433

A thermoacoustic traveling wave linear amplifier  

Science Journals Connector (OSTI)

This paper describes an experiment to show linear amplification of traveling sound waves in a duct using a thermoacoustic regenerator. As noted by Ceperley [J. Acoust. Soc. Am. 66 1508–1513 (1979)] a Stirling engine?type regenerator should act as an acoustic gain medium for traveling waves in a duct. This principle is used in thermoacoustic traveling wave engines to transfer power from heat reservoirs to acoustic energy. However it is difficult to produce finite gain for pure traveling wave impedance since viscous losses in the channels of the regenerator overcome the gain and previous workers have only been able to show reduced loss in such a system. Optimizing the regenerator design with numerical modeling and using a greater temperature difference suggest that a traveling wave thermal amplifier can produce 2 dB of real gain over two octaves for traveling waves in air. Such a device would amplify a broadband acoustic signal without electrical transducers. Design of the amplifier and experimental results will be shown.

Robert A. Hiller

2000-01-01T23:59:59.000Z

434

Constrained geometric dynamics of the Fenna-Matthews-Olson complex: The role of correlated motion in reducing uncertainty in excitation energy transfer  

E-Print Network [OSTI]

The Fenna Mathews Olson (FMO) complex of green sulphur bacteria is an example of a photosynthetic pigment protein complex, in which the electronic properties of the pigments are modified by the protein environment to promote efficient excitonic energy transfer from antenna complexes to the reaction centres. Many of the electronic properties of the FMO complex can be extracted from knowledge of the static crystal structure. However, the recent observation and analysis of long lasting quantum dynamics in the FMO complex point to protein dynamics as a key factor in protecting and generating quantum coherence under laboratory conditions. While fast inter and intra molecular vibrations have been investigated extensively, the slow dynamics which effectively determine the optical inhomogeneous broadening of experimental ensembles has received less attention. Our study employs constrained geometric dynamics to study the flexibility in the protein network by efficiently generating the accessible conformational states from the published crystal structure. Statistical and principle component analysis reveal highly correlated low frequency motions between functionally relevant elements, including strong correlations between pigments that are excitonically coupled. Our analysis reveals a hierarchy of structural interactions which enforce these correlated motions, from the level of monomer monomer interfaces right down to the alpha helices, beta sheets and pigments. In addition to inducing strong spatial correlations across the conformational ensemble, we find that the overall rigidity of the FMO complex is exceptionally high. We suggest that these observations support the idea of highly correlated inhomogeneous disorder of the electronic excited states, which is further supported by the remarkably low variance of the excitonic couplings of the conformational ensemble.

Alexander S. Fokas; Daniel J. Cole; Alex W. Chin

2014-07-08T23:59:59.000Z

435

Investigation of Solar Energy Transfer through Plasmonic Au Nanoparticle-doped Sol-derived TiO? Thin Films in Photocatalysis and Photovoltaics /  

E-Print Network [OSTI]

solar-to-fuel and photovoltaic energy conversion through TiOplasmonic photovoltaic and photocatalytic energy transferto-fuel energy conversion or photovoltaic applications. The

Zelinski, Andrew

2013-01-01T23:59:59.000Z

436

Wireless Transfer of Electricity in Outer Space  

E-Print Network [OSTI]

Author offers conclusions from his research of a revolutionary new idea - transferring electric energy in the hard vacuum of outer space wirelessly, using a plasma power cord as an electric cable (wire). He shows that a certain minimal electric currency creates a compressed force that supports the plasma cable in the compacted form. A large energy can be transferred hundreds of millions of kilometers by this method. The required mass of the plasma cable is only hundreds of grams. He computed the macroprojects: transference of hundreds kilowatts of energy to Earth's Space Station, transferring energy to the Moon or back, transferring energy to a spaceship at distance 100 million of kilometers, the transfer energy to Mars when one is located at opposed side of the distant Sun, transfer colossal energy from one of Earth's continents to another continent (for example, between Europe-USA) wirelessly-using Earth's ionosphere as cable, using Earth as gigantic storage of electric energy, using the plasma ring as huge...

Bolonkin, A

2007-01-01T23:59:59.000Z

437

Wireless Transfer of Electricity in Outer Space  

E-Print Network [OSTI]

Author offers conclusions from his research of a revolutionary new idea - transferring electric energy in the hard vacuum of outer space wirelessly, using a plasma power cord as an electric cable (wire). He shows that a certain minimal electric currency creates a compressed force that supports the plasma cable in the compacted form. A large energy can be transferred hundreds of millions of kilometers by this method. The required mass of the plasma cable is only hundreds of grams. He computed the macroprojects: transference of hundreds kilowatts of energy to Earth Space Station, transferring energy to the Moon or back, transferring energy to a spaceship at distance 100 million of kilometers, the transfer energy to Mars when one is located at opposed side of the distant Sun, transfer colossal energy from one of Earth's continents to another continent (for example, between Europe-USA) wirelessly-using Earth ionosphere as cable, using Earth as gigantic storage of electric energy, using the plasma ring as huge MagSail for moving of spaceships. He also demonstrates that electric currency in a plasma cord can accelerate or brake spacecraft and space apparatus.

Alexander Bolonkin

2007-01-04T23:59:59.000Z

438

Berkeley Proton Linear Accelerator  

DOE R&D Accomplishments [OSTI]

A linear accelerator, which increases the energy of protons from a 4 Mev Van de Graaff injector, to a final energy of 31.5 Mev, has been constructed. The accelerator consists of a cavity 40 feet long and 39 inches in diameter, excited at resonance in a longitudinal electric mode with a radio-frequency power of about 2.2 x 10{sup 6} watts peak at 202.5 mc. Acceleration is made possible by the introduction of 46 axial "drift tubes" into the cavity, which is designed such that the particles traverse the distance between the centers of successive tubes in one cycle of the r.f. power. The protons are longitudinally stable as in the synchrotron, and are stabilized transversely by the action of converging fields produced by focusing grids. The electrical cavity is constructed like an inverted airplane fuselage and is supported in a vacuum tank. Power is supplied by 9 high powered oscillators fed from a pulse generator of the artificial transmission line type.

Alvarez, L. W.; Bradner, H.; Franck, J.; Gordon, H.; Gow, J. D.; Marshall, L. C.; Oppenheimer, F. F.; Panofsky, W. K. H.; Richman, C.; Woodyard, J. R.

1953-10-13T23:59:59.000Z

439

Piecewise Linear Phase Transitions  

E-Print Network [OSTI]

It is shown how simple assumptions lead to piecewise linear behavior, which is observed in certain phase transitions.

Joseph B. Keller

2007-11-26T23:59:59.000Z

440

Linear Collider Collaboration Tech Notes  

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

5 08//00 5 08//00 Study of Beam Energy Spectrum Measurement in the NLC Extraction Line August 2000 Yuri Nosochkov and Tor Raubenheimer Stanford Linear Accelerator Center Stanford, CA Abstract: The NLC extraction line optics includes a secondary focal point with a very small _- function and 2 cm dispersion which can be used for measurement of outgoing beam energy spread. In this study, we performed tracking simulations to transport the NLC disrupted beam from the Interaction Point (IP) to the extraction line secondary focus (the IP image), `measure' the transverse beam pro_le at the IP image and reconstruct the beam energy spectrum. The resultant distribution was compared with the original energy spectrum at the IP. Study of Beam Energy Spectrum Measurement

Note: This page contains sample records for the topic "linear energy transfer" 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

Introduction to Linear Bialgebra  

E-Print Network [OSTI]

The algebraic structure, linear algebra happens to be one of the subjects which yields itself to applications to several fields like coding or communication theory, Markov chains, representation of groups and graphs, Leontief economic models and so on. This book has for the first time, introduced a new algebraic structure called linear bialgebra, which is also a very powerful algebraic tool that can yield itself to applications. With the recent introduction of bimatrices (2005)we have ventured in this book to introduce new concepts like linear bialgebra and Smarandache neutrosophic linear bialgebra and also give the applications of these algebraic structures. It is important to mention here it is a matter of simple exercise to extend these to linear n-algebra for any n greater than 2; for n = 2 we get the linear bialgebra. This book has five chapters. In the first chapter we just introduce some basic notions of linear algebra and Slinear algebra and their applications. Chapter two introduces some new algebraic bistructures. In chapter three we introduce the notion of linear bialgebra and discuss several interesting properties about them. Also, application of linear bialgebra to bicodes is given. A remarkable part of our research in this book is the introduction of the notion of birepresentation of bigroups. The fourth chapter introduces several neutrosophic algebraic structures since they help in defining the new concept of neutrosophic linear bialgebra, neutrosophic bivector spaces, Smarandache neutrosophic linear bialgebra and Smarandache neutrosophic bivector spaces. Theirprobable applications to real-world models are discussed.

W. B. Vasantha Kandasamy; Florentin Smarandache; K. Ilanthenral

2005-08-15T23:59:59.000Z

442

Thermal Storage and Advanced Heat Transfer Fluids (Fact Sheet)  

SciTech Connect (OSTI)

Fact sheet describing NREL CSP Program capabilities in the area of thermal storage and advanced heat transfer fluids: measuring thermophysical properties, measuring fluid flow and heat transfer, and simulating flow of thermal energy and fluid.

Not Available

2010-08-01T23:59:59.000Z

443

Sitewide Categorical Exclusion for Property Transfers,  

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

Sitewide Categorical Exclusion for Property Transfers, Sitewide Categorical Exclusion for Property Transfers, Pacific Northwest National Laboratory, Richland, Washington Proposed Action The U.S. Department of Energy (DOE), Pacific Northwest Site Office (PNSO) proposes to transfer, lease, disposition, or acquire interests in personal property or real property. Location of Action The proposed action would occur on the Pacific Northwest National Laboratory (PNNL) site and the Marine Sciences Laboratory and in the vicinity of PNNL facilities in the State of Washington.

444

Transfer Entropy Analysis of the Stock Market  

E-Print Network [OSTI]

In terms of transfer entropy, we investigated the strength and the direction of information transfer in the US stock market. Through the directionality of the information transfer, the more influential company between the correlated ones can be found and also the market leading companies are selected. Our entropy analysis shows that the companies related with energy industries such as oil, gas, and electricity influence the whole market.

Baek, S K; Kwon, O; Moon, H T; Baek, Seung Ki; Jung, Woo-Sung; Kwon, Okyu; Moon, Hie-Tae

2005-01-01T23:59:59.000Z

445

Transferring Data at NERSC  

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

Data Transferring Data Advice and Overview NERSC provides many facilities for storing data and performing analysis. However, transfering data - whether over the wide area network...

446

History of Proton Linear Accelerators  

E-Print Network [OSTI]

much. References 1. Linear Accelerators, edited by P. M .at the 1986 Linear Accelerator Conference, SLAC, Stanford,HISTORY OF PROTON LINEAR ACCELERATORS Luis W. Alvarez TWO-

Alvarez, Luis W.

1987-01-01T23:59:59.000Z

447

Radiative Transfer in Terms of Integral Equations  

Science Journals Connector (OSTI)

... linear integral equation of the Fredholm type. Another year after that (1914), K. Schwarzschild showed that the problem of the radiative equilibrium of an atmosphere leads to a Fredholm ... of an atmosphere leads to a Fredholm equation, and Milne, ten years later, extended Schwarzschild's work by showing how different transfer problems all lead to similar types of integral ...

SVEIN ROSSELAND

1950-07-29T23:59:59.000Z

448

Accelerating the transfer in Technology Transfer  

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

Accelerating the transfer in Technology Transfer Accelerating the transfer in Technology Transfer Community Connections: Our link to Northern New Mexico Communities Latest Issue:Dec. 2013 - Jan. 2014 All Issues » submit Accelerating the transfer in Technology Transfer Express Licensing fast tracks commercialization. May 1, 2013 Division Leader Dave Pesiri Division Leader Dave Pesiri. Contact Editor Linda Anderman Email Community Programs Office Kurt Steinhaus Email Express Licensing program To better serve its partners, one of the first improvements the Lab's Technology Transfer Division (TT) has made is through its new Express Licensing initiative. Standardized license agreements and fee structures will remove long and complicated negotiations and decrease the time required to get patented Lab technology and software into the hands of

449

Time-optimal transfer of coherence  

Science Journals Connector (OSTI)

We provide exact analytical solutions for the problem of time-optimal transfer of coherence from one spin-polarization to a threefold coherence in a trilinear Ising chain with a fixed energy available and subject to local controls with a non-negligible time cost. The time of transfer is optimal and consistent with a previous numerical result obtained assuming instantaneous local controls.

Alberto Carlini and Tatsuhiko Koike

2012-11-26T23:59:59.000Z

450

Unit I-2 Linear Maps 1 Linear maps  

E-Print Network [OSTI]

Unit I-2 Linear Maps 1 Unit I-2 Linear maps Unit I-2 Linear Maps 2 Linear map · V & U are vector spaces over the same scalars · a function f: VU is a linear map if it preserves the vector space transformation [particularly when f: RnRm] ­ linear operator when f: V V [same v.s.] ­ linear mapping ­ linear

Birkett, Stephen

451

lgebra Linear Mauro Rincon  

E-Print Network [OSTI]

10.1 Álgebra Linear Mauro Rincon Márcia Fampa Aula 10: Determinantes #12;10.2 8.1 - Definições #12

Cabral, Marco

452

Linear Graphene Plasmons  

Science Journals Connector (OSTI)

The coupling of the plasmon spectra of graphene and a nearby thick plasma is examined here in detail. The coupled modes include linear plasmons. Keywords: Graphene, plasmons, surface

N. J.M. Horing

2010-11-01T23:59:59.000Z

453

Focusing in Linear Accelerators  

DOE R&D Accomplishments [OSTI]

Review of the theory of focusing in linear accelerators with comments on the incompatibility of phase stability and first-order focusing in a simple accelerator.

McMillan, E. M.

1950-08-24T23:59:59.000Z

454

Linear phase compressive filter  

DOE Patents [OSTI]

A phase linear filter for soliton suppression is in the form of a laddered series of stages of non-commensurate low pass filters with each low pass filter having a series coupled inductance (L) and a reverse biased, voltage dependent varactor diode, to ground which acts as a variable capacitance (C). L and C values are set to levels which correspond to a linear or conventional phase linear filter. Inductance is mapped directly from that of an equivalent nonlinear transmission line and capacitance is mapped from the linear case using a large signal equivalent of a nonlinear transmission line.

McEwan, Thomas E. (Livermore, CA)

1995-01-01T23:59:59.000Z

455

Development of a Transient Heat and Mass Transfer Model of Residential Attics to Predict Energy Savings Produced by the Use of Radiant Barriers  

E-Print Network [OSTI]

A transient heat and mass transfer model was developed to predict ceiling heat gain/loss through the attic space in residences and to accurately estimate savings in cooling and heating loads produced by the use of radiant barriers. The model...

Medina, M. A.

456

Using Linearity Web Copyright 2007  

E-Print Network [OSTI]

Using Linearity Web Rev. 2.0 May 2007 Copyright © 2007 #12;Using Linearity Web i Contents Introduction to Linearity Web.............................................................................1 Features, Benefits, and Value of Linearity Web..............................................1 Before You

Rodriguez, Carlos

457

Federal Laboratory Technology Transfer  

E-Print Network [OSTI]

Federal Laboratory Technology Transfer Fiscal Year 2008 Prepared by: National Institute to submit this fiscal year 2008 Technology Transfer Summary Report to the President and the Congress transfer authorities established by the Technology Transfer Commercialization Act of 2000 (P.L. 106

Perkins, Richard A.

458

RADIATIVE TRANSFER IN ULTRARELATIVISTIC OUTFLOWS  

SciTech Connect (OSTI)

Analytical and numerical solutions are obtained for the equation of radiative transfer in ultrarelativistic opaque jets. The solution describes the initial trapping of radiation, its adiabatic cooling, and the transition to transparency. Two opposite regimes are examined. (1) Matter-dominated outflow. Surprisingly, radiation develops enormous anisotropy in the fluid frame before decoupling from the fluid. The radiation is strongly polarized. (2) Radiation-dominated outflow. The transfer occurs as if radiation propagated in vacuum, preserving the angular distribution and the blackbody shape of the spectrum. The escaping radiation has a blackbody spectrum if (and only if) the outflow energy is dominated by radiation up to the photospheric radius.

Beloborodov, Andrei M., E-mail: amb@phys.columbia.edu [Physics Department and Columbia Astrophysics Laboratory, Columbia University, 538 West 120th Street New York, NY 10027 (United States)

2011-08-20T23:59:59.000Z

459

NREL: Technology Transfer - Research Facilities  

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

Research Facilities Research Facilities Photo of Solar Energy Research Facility building at NREL. NREL's Solar Energy Research Facility is one of many world-class facilities available to public and private agencies. For developing commercially viable energy products, organizations may partner with NREL to use our state-of-the-art laboratories, and testing and user facilities. Visit NREL's Research Facilities Web site to learn more about them. We typically develop technology partnership agreements for using our facilities and/or working with our researchers. Printable Version Technology Transfer Home About Technology Transfer Technology Partnership Agreements Licensing Agreements Nondisclosure Agreements Research Facilities Commercialization Programs Success Stories News Contacts Did you find what you needed?

460

SLAC linear collider  

SciTech Connect (OSTI)

A brief description of the proposed SLAC Linear Collider is given. This machine would investigate the possibilities and limitations of Linear Colliders while at the same time producing thousands of Z/sup 0/ particles per day for the study of the weak interactions.

Hollebeek, R.

1980-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "linear energy transfer" 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

Independent Oversight Inspection, Stanford Linear Accelerator Center -  

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

Stanford Linear Accelerator Stanford Linear Accelerator Center - January 2007 Independent Oversight Inspection, Stanford Linear Accelerator Center - January 2007 January 2007 Inspection of Environment, Safety, and Health Programs at the Stanford Linear Accelerator Center The U.S. Department of Energy (DOE) Office of Independent Oversight, within the Office of Health, Safety and Security, conducted an inspection of environment, safety, and health (ES&H) programs at the DOE Stanford Linear Accelerator Center (SLAC) during October and November 2006. The inspection was performed by Independent Oversight's Office of Environment, Safety and Health Evaluations. Since the 2004 Type A electrical accident, SSO and SLAC have made improvements in many aspects of ES&H programs. However, the deficiencies in

462

Alliance For Sustainable Energy  

Broader source: Energy.gov [DOE]

Response from National Renewable Energy Laboratory on the Technology Transfer Questions in Federal Register dated November 26, 2008

463

Ion optics of the Linac--LEB transfer line  

SciTech Connect (OSTI)

This report describes the ion optical properties of a proposed transfer line to inject a nominal 25 mA H{sup {minus}} beam at 600 MeV from the Linac into the Low Energy Booster (LEB) synchrotron. Ion optical investigations have been carried out in detail using the TRANSPORT, TURTLE and TRACE 3-D codes. The calculations take account of linear space charge effects of up to 50 mA average beam current. These effects have been found to be quite appreciable, especially on the longitudinal phase space. Procedure for their evaluation and optimization are described. Effects of some imperfections in the beam line magnets have been studied. 6 refs., 19 figs., 4 tabs.

Bhandari, R.K.; Penner, S.

1990-12-01T23:59:59.000Z

464

Abstract 5390: Development of a high-throughput screening assay to identify UHRF1 inhibitors via time-resolved fluorescence resonance energy transfer (TR-FRET)  

Science Journals Connector (OSTI)

...Association for Cancer Research April 15, 2013 meeting-abstract Immunology Poster...with a positive energy balance. Januaria...energy balance. [abstract]. In: Proceedings...Association for Cancer Research; 2013 Apr 6-10...

David A. Walker; Nicolas Wyhs; Hugh Giovinazzo; Srinivasan Yegnasubramanian; and William G. Nelson

2014-10-01T23:59:59.000Z

465

Challenges in future linear colliders  

SciTech Connect (OSTI)

For decades, electron-positron colliders have been complementing proton-proton colliders. But the circular LEP, the largest e-e+ collider, represented an energy limit beyond which energy losses to synchrotron radiation necessitate moving to e-e+ linear colliders (LCs), thereby raising new challenges for accelerator builders. Japanese-American, German, and European collaborations have presented options for the Future Linear Collider (FLC). Key accelerator issues for any FLC option are the achievement of high enough energy and luminosity. Damping rings, taking advantage of the phenomenon of synchrotron radiation, have been developed as the means for decreasing beam size, which is crucial for ensuring a sufficiently high rate of particle-particle collisions. Related challenges are alignment and stability in an environment where even minute ground motion can disrupt performance, and the ability to monitor beam size. The technical challenges exist within a wider context of socioeconomic and political challenges, likely necessitating continued development of international collaboration among parties involved in accelerator-based physics.

Swapan Chattopadhyay; Kaoru Yokoya

2002-09-02T23:59:59.000Z

466

Center for Biological Electron Transfer and Catalysis (BETCy...  

Office of Science (SC) Website

Center for Biological Electron Transfer and Catalysis (BETCy) Energy Frontier Research Centers (EFRCs) EFRCs Home Centers EFRC External Websites Research Science Highlights News &...

467

Resonance energy transport in an oscillator chain  

E-Print Network [OSTI]

We investigate energy transfer and localization in a linear time-invariant oscillator chain weakly coupled to a forced nonlinear actuator. Two types of perturbation are studied: (1) harmonic forcing with a constant frequency is applied to the actuator (the Duffing oscillator) with slowly changing parameters; (2) harmonic forcing with a slowly increasing frequency is applied to the nonlinear actuator with constant parameters. In both cases, stiffness of linear oscillators as well as linear coupling remains constant, and the system is initially engaged in resonance. The parameters of the systems and forcing are chosen to guarantee autoresonance (AR) with gradually increasing energy in the nonlinear actuator. As this paper demonstrates, forcing with constant frequency generates oscillations with growing energy in the linear chain but in the system excited by forcing with slowly time-dependent frequency energy remains localized on the nonlinear actuator whilst the response of the linear chain is bounded. This means that the systems that seem to be almost identical exhibit different dynamical behavior caused by their different resonance properties. Numerical examples a good agreement between exact (numerical) solutions and their asymptotic approximations found by the multiple time scales method.

Agnessa Kovaleva

2015-01-03T23:59:59.000Z

468

USDOE Technology Transfer, Working with DOE  

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

Energy Efficiency & Renewable and Energy - Commercialization Energy Efficiency & Renewable and Energy - Commercialization Deployment SBIR/STTR - Small Business Innovation Research and Small Business Technology Transfer Advanced Research Projects Agency-Energy (ARPA-E) Oil & Gas Technology Transfer Initiatives USEFUL LINKS Contract Opportunities: FBO.gov FedConnect.net Grant Opportunities DOE Organization Chart Association of University Technology Managers (AUTM) Federal Laboratory Consortium (FLC) Feedback Contact us about Tech Transfer: Mary.McManmon@science.doe.gov Mary McManmon, 202-586-3509 Working with DOE Navigate Home About Us Contact Information Hide Thumbs First Previous Pause Next Last Set Speed Slideshow speed: 5 seconds Move Decontamination New Image Set Autoinduction Autoinduction System The award winning Overnight Express(tm) Autoinduction System developed at

469

Syntactic edges and linearization  

E-Print Network [OSTI]

In this thesis, I investigate the question of how the units of a linguistic expression are linearly ordered in syntax. In particular, I examine interactions between locality conditions on movement and the mapping between ...

Ko, Heejeong

2005-01-01T23:59:59.000Z

470

Evidence for a flux transfer event generated by multiple Xline reconnection at the magnetopause  

E-Print Network [OSTI]

how they regulate the transfer of solar wind energy into magnetospheres, is still largely unknown. We in the manner the solar wind energy is transferred to the magne- tosphere. However, much remains unknown about

California at Berkeley, University of

471

E-Print Network 3.0 - ab initio linear Sample Search Results  

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

Duke University Collection: Materials Science 2 imageslogoetsf Introduction Electron Energy Loss Spectroscopy Applications: Nanotubes and Graphene Perspectives Summary: Linear...

472

ADAPTIVE TRANSFER ADJUSTMENT IN EFFICIENT BULK DATA TRANSFER MANAGEMENT FOR CLIMATE DATASET  

E-Print Network [OSTI]

ADAPTIVE TRANSFER ADJUSTMENT IN EFFICIENT BULK DATA TRANSFER MANAGEMENT FOR CLIMATE DATASET Alex,mbalman,ashoshani,vnatarajan}@lbl.gov, williams13@llnl.gov ABSTRACT Many scientific applications and experiments, such as high energy and nuclear is the limited network capacity for moving large datasets. A tool that addresses this challenge is the Bulk Data

473

NERSC's Data Transfer Nodes  

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

Data Transfer Nodes Data Transfer Nodes Data Transfer Nodes Overview The data transfer nodes are NERSC servers dedicated to performing transfers between NERSC data storage resources such as HPSS and the NERSC Global Filesystem (NGF), and storage resources at other sites including the Leadership Computing Facility at ORNL (Oak Ridge National Laboratory). These nodes are being managed (and monitored for performance) as part of a collaborative effort between ESnet, NERSC, and ORNL to enable high performance data movement over the high-bandwidth 10Gb ESnet wide-area network (WAN). Restrictions In order to keep the data transfer nodes performing optimally for data transfers, we request that users restrict interactive use of these systems to tasks that are related to preparing data for transfer or are directly

474

HEAT TRANSFER FLUIDS  

E-Print Network [OSTI]

The choice of heat transfer fluids has significant effects on the performance, cost, and reliability of solar thermal systems. In this chapter, we evaluate existing heat transfer fluids such as oils and molten salts based ...

Lenert, Andrej

2012-01-01T23:59:59.000Z

475

Phase-Transfer Catalysts  

Science Journals Connector (OSTI)

In previous chapters we learned that a phase-transfer catalyst must have two particular chemical functions to be successful, that is, it must rapidly transfer one of the reactant species into the normal phase ...

Charles M. Starks; Charles L. Liotta; Marc E. Halpern

1994-01-01T23:59:59.000Z

476

INL Technology Transfer  

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

Technology Transfer Through collaboration with industry partners, INL's Technology Deployment office makes available to American agencies and international organizations unique...

477

ENHANCING THE TRANSFER STUDENT  

E-Print Network [OSTI]

Efforts #12;Who Are Ohio State Transfer Students? #12;TRANSFER PROFILE DatafromSU12,AU12,SP13 3 as NFYS: 576 Average Transfer Hours of Enrolled Student: 52.2 Living on Campus: 470 Total # Sending Expectations (time management skills, balancing a more rigorous course load, study skills) 13.24% Majors (how

478

Federal Laboratory Technology Transfer  

E-Print Network [OSTI]

Federal Laboratory Technology Transfer Fiscal Year 2007 Prepared by: National Institute to present to the President and the Congress this Federal Laboratory Technology Transfer Report summarizing the achievements of Federal technology transfer and partnering programs of the Federal research and development

Perkins, Richard A.

479

Federal Laboratory Technology Transfer  

E-Print Network [OSTI]

Federal Laboratory Technology Transfer Fiscal Year 2009 Prepared by: National Institute to submit this fiscal year 2009 Technology Transfer Summary Report to the President and the Congress in accordance with 15 USC Sec 3710(g)(2) for an annual summary on the implementation of technology transfer

Perkins, Richard A.

480

Heat Transfer Guest Editorial  

E-Print Network [OSTI]

Journal of Heat Transfer Guest Editorial We are indeed delighted in bringing out this special issue was showcased in diverse areas such as traditional heat and mass transfer, lab-on-chip, sensors, biomedical applica- tions, micromixers, fuel cells, and microdevices. Selected papers in the field of heat transfer

Kandlikar, Satish

Note: This page contains sample records for the topic "linear energy transfer" 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

Abstract 5440: Analyzing in vivo conformational changes of a transcription factor, c-Myb, using fluorescence resonance energy transfer (FRET) technology.  

Science Journals Connector (OSTI)

...Association for Cancer Research. 1 October 2014 meeting-abstract Epidemiology...indicators of energy balance and colorectal...Note: This abstract was not presented...indicators of energy balance and colorectal...cancer risk. [abstract]. In: Proceedings...Association for Cancer Research; 2014 Apr 5-9...

Olivia L. George and Scott A. Ness

2013-04-15T23:59:59.000Z

482

Energy  

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

Energy newsroomassetsimagesenergy-icon.png Energy Research into alternative forms of energy, and improving and securing the power grid, is a major national security...

483

Heat transfer system  

DOE Patents [OSTI]

A heat transfer system for a nuclear reactor. Heat transfer is accomplished within a sealed vapor chamber which is substantially evacuated prior to use. A heat transfer medium, which is liquid at the design operating temperatures, transfers heat from tubes interposed in the reactor primary loop to spaced tubes connected to a steam line for power generation purposes. Heat transfer is accomplished by a two-phase liquid-vapor-liquid process as used in heat pipes. Condensible gases are removed from the vapor chamber through a vertical extension in open communication with the chamber interior.

McGuire, Joseph C. (Richland, WA)

1982-01-01T23:59:59.000Z

484

Enhanced heat transfer for thermionic power modules  

SciTech Connect (OSTI)

The thermionic power module is capable of operating at very high heat fluxes, which in turn serve to reduce capital costs. The most efficient operation also requires uniform heat fluxes. The development of enhanced heat transfer systems is required to meet the demand for high heat fluxes (>20 w/cm/sup 2/) at high temperatures (>1500K) which advanced thermionic power modules place upon combustion systems. Energy transfer from the hot combustion gases may take place by convection, radiation, or a combination of radiation and convection. Enhanced convective heat transfer with a jet impingement system has been demonstrated in a thermionic converter. The recently-developed cellular ceramic radiative heat transfer system has also been applied to a thermionic converter. By comparing the jet impingement and cellular ceramic radiative heat transfer systems, an appropriate system may be selected for utilization in advanced thermionic power modules. Results are reported.

Johnson, D.C.

1981-07-01T23:59:59.000Z

485

Annual Report on DOE Technology Transfer FY 2007 and 2008  

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

Annual Report Annual Report on Technology Transfer and Related Technology Partnering Activities at the National Laboratories and Other Facilities Fiscal Years 2007 and 2008 Prepared by: Office of Laboratory Policy and Evaluation Office of Science and National Nuclear Security Administration U.S. Department of Energy In Coordination With: Technology Transfer Policy Board Technology Transfer Working Group U.S. Department of Energy December 2009 ii TABLE OF CONTENTS Background .......... .................................................................................................................................................1 Technology Partnering Policy .................................................................................................................................1

486

Nuclear reorganization barriers to electron transfer  

SciTech Connect (OSTI)

The nuclear barrier to electron transfer arises from the need for reorganization of intramolecular and solvent internuclear distances prior to electron transfer. For reactions with relatively small driving force (''normal'' free-energy region) the nuclear factors and rates increase as intrinsic inner-shell and outer-shell barriers decrease; this is illustrated by data for transition metal complexes in their ground electronic states. By contrast, in the inverted free-energy region, rates and nuclear factors decrease with decreasing ''intrinsic'' barriers; this is illustrated by data for the decay of charge-transfer excited states. Several approaches to the evaluation of the outer-shell barrier are explored in an investigation of the distance dependence of the nuclear factor in intramolecular electron-transfer processes. 39 refs., 14 figs., 3 tabs.

Sutin, N.; Brunschwig, B.S.; Creutz, C.; Winkler, J.R.

1988-01-01T23:59:59.000Z

487

Peak Power Bi-directional Transfer From High Speed Flywheel to Electrical Regulated Bus Voltage System  

E-Print Network [OSTI]

were performed to determine the energy transfer capabilities of a flywheel coupled high speed permanent magnet synchronous machine through the proposed system's energy storage tank. Results are presented

Szabados, Barna

488

Investigation of a Linear Model to Describe Hydrologic Phenomenon of Drainage Basins  

E-Print Network [OSTI]

This investigation is concerned with the applicability of the linear convolution relationship for approximating the rainfall-runoff phenomenon for small drainage basins. A solution for the transfer function of the convolution relationship...

Schmer, F. A.

489

Linear Logic as CSP  

Science Journals Connector (OSTI)

......research-article Original Articles Linear Logic as CSP ERIC MONTEIRO Department of Informatics...translation from such proofs into a corresponding CSP process is offered. It is shown that the...between the cut elimination process and the CSP execution. Generalizations and related......

ERIC MONTEIRO

1994-08-01T23:59:59.000Z

490

Linear Programming Environmental  

E-Print Network [OSTI]

Linear Program to control air pollution was developed in 1968 by Teller, which minimized cost Fall 2006 #12;Topics · Introduction · Background · Air · Land · Water #12;Introduction · "The United States spends more than 2% of its gross domestic product on pollution control, and this is more than any

Nagurney, Anna

491

Atmospheric sciences transfer between research advances and energy-policy assessments (ASTRAEA). Final report, 1 April 1996--31 December 1997  

SciTech Connect (OSTI)

Consistent with the prime goal of the ASTRAEA project, as given in its peer-reviewed proposal, this final report is an informal report to DOE managers about a perceived DOE management problem, specifically, lack of vision in DOE`s Atmospheric Chemistry Program (ACP). After presenting a review of relevant, current literature, the author suggests a framework for conceiving new visions for ACP, namely, multidisciplinary research for energy policy, tackling tough (e.g., nonlinear) problems as a team, ahead of political curves. Two example visions for ACP are then described, called herein the CITIES Project (the Comprehensive Inventory of Trace Inhalants from Energy Sources Project) and the OCEAN Project (the Ocean-Circulation Energy-Aerosol Nonlinearities Project). Finally, the author suggests methods for DOE to provide ACP with needed vision.

Slinn, W.G.N.

1997-12-10T23:59:59.000Z

492

Energy transfer and luminescent properties of a green-to-red color tunable Tb3+, Eu3+ co-doped K2Y(WO4)(PO4) phosphor  

Science Journals Connector (OSTI)

Abstract A color-tunable Tb3+, Eu3+ co-doped K2Y(WO4)(PO4) phosphor was prepared by solid-state method. The excitation peak wavelength of the resulting phosphor was 377 nm and the emission peak wavelengths were at 545 nm, attributed to the 5D4 ? 7F5 transition of Tb3+, and at 613 mm, attributed to the 5D0 ? 7F2 transition of Eu3+. Both cross relaxation and exchange interaction are responsible for the Tb3+ ? Eu3+ energy transfer in K2Y(WO4)(PO4): Tb3+, Eu3+ system. The intensity ratio of the two peaks could be freely controlled by varying the Eu/Tb ratio, allowing color to be tuned over a wide range from green to red.

Xinguo Zhang; Pei He; Liya Zhou; Jianxin Shi; Menglian Gong

2014-01-01T23:59:59.000Z

493

Building Energy Software Tools Directory: Tools by Subject - Other  

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

Indoor Air Indoor Air A B C D E F I K L M P S T U V Tool Applications Free Recently Updated AcousticCalc HVAC acoustics, sound level prediction, noise level AnTherm Thermal heat bridges, heat flow, steady state, 2D, 3D, transfer coefficients, thermal conductance, visualization, simulation, European standards, EPBD, temperature distribution, vapor transfer, vapor diffusion, avoiding moisture, avoiding mould, energy performance, linear thermal transmittance, point thermal transmittance, vapor pressure, surface condensation, thermal comfort, dew point Software has been updated. BuildingAdvice Whole building analysis, energy simulation, renewable energy, retrofit analysis, sustainability/green buildings Software has been updated. BUS++ energy performance, ventilation, air flow, indoor air quality, noise level Software has been updated.

494

Building Energy Software Tools Directory: Tools by Subject - Whole Building  

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

Load Calculation Load Calculation A B C D E F G H I J L M N P Q R S T U V Tool Applications Free Recently Updated AEPS System Planning electrical system, renewable energy system, planning and design software, modeling, simulation, energy usage, system performance, financial analysis, solar, wind, hydro, behavior characteristics, usage profiles, generation load storage calculations, on-grid, off-grid, residential, commercial, system sizing, utility rate plans, rate comparison, utility costs, energy savings Software has been updated. AIRWIND Pro Air Conditioning Load Calculation AnTherm Thermal heat bridges, heat flow, steady state, 2D, 3D, transfer coefficients, thermal conductance, visualization, simulation, European standards, EPBD, temperature distribution, vapor transfer, vapor diffusion, avoiding moisture, avoiding mould, energy performance, linear thermal transmittance, point thermal transmittance, vapor pressure, surface condensation, thermal comfort, dew point Software has been updated.

495

Fuel transfer system  

DOE Patents [OSTI]

A nuclear fuel bundle fuel transfer system includes a transfer pool containing water at a level above a reactor core. A fuel transfer machine therein includes a carriage disposed in the transfer pool and under the water for transporting fuel bundles. The carriage is selectively movable through the water in the transfer pool and individual fuel bundles are carried vertically in the carriage. In a preferred embodiment, a first movable bridge is disposed over an upper pool containing the reactor core, and a second movable bridge is disposed over a fuel storage pool, with the transfer pool being disposed therebetween. A fuel bundle may be moved by the first bridge from the reactor core and loaded into the carriage which transports the fuel bundle to the second bridge which picks up the fuel bundle and carries it to the fuel storage pool. 6 figures.

Townsend, H.E.; Barbanti, G.

1994-03-01T23:59:59.000Z

496

Fuel transfer system  

DOE Patents [OSTI]

A nuclear fuel bundle fuel transfer system includes a transfer pool containing water at a level above a reactor core. A fuel transfer machine therein includes a carriage disposed in the transfer pool and under the water for transporting fuel bundles. The carriage is selectively movable through the water in the transfer pool and individual fuel bundles are carried vertically in the carriage. In a preferred embodiment, a first movable bridge is disposed over an upper pool containing the reactor core, and a second movable bridge is disposed over a fuel storage pool, with the transfer pool being disposed therebetween. A fuel bundle may be moved by the first bridge from the reactor core and loaded into the carriage which transports the fuel bundle to the second bridge which picks up the fuel bundle and carries it to the fuel storage pool.

Townsend, Harold E. (Campbell, CA); Barbanti, Giancarlo (Cupertino, CA)

1994-01-01T23:59:59.000Z

497

Corrosion behavior of several metals in ethylene glycol-base heat-transfer fluids under conditions encountered in solar energy systems  

SciTech Connect (OSTI)

The corrosion behavior of aluminum, copper, and iron in inhibited ethylene glycol-ASTM corrosive water solutions was evaluated in a laboratory loop under isothermal and heat-flux conditions for 1000 h at temperatures between 378 and 413/sup 0/K, in static autoclave tests at 450/sup 0/K for 500 h, and by potentiodynamic polarization measurements at temperatures between 298 and 348/sup 0/K. The effect of time, temperature, and ethylene glycol concentration of the heat-transfer fluid on the extent of inhibitor depletion was determined from analyses of the reserve alkalinity, pH, and inhibitor content of the solutions. The performance of an electrochemical sensor as a monitor of fluid quality was also evaluated. A heat flux of 0.4 to 1.0 kW/m/sup 2/ did not have a significant effect on the corrosion behavior of the various materials at temperatures between 378 and 413/sup 0/K. The corrosion rates of aluminum, copper, and iron in the 50 volume percent inhibited ethylene glycol-corrosive water solution decreased as a function of time during the 1000-h test. At 413/sup 0/K, the corrosion rate of copper was considerably higher than that of iron or aluminum at low flow velocity. Significant degradation of the fluid quality, as indicated by the measurement of the pH, reserve alkalinity, and inhibitor concentrations, occurred after several hundred hours at temperatures of approx. 450/sup 0/K.

Zeman, G.J.

1980-01-01T23:59:59.000Z

498

Energy balance in linear and nonlinear waves  

Science Journals Connector (OSTI)

We give a quantitative meaning to the often-used expression: in spatial solitons, diffraction is balanced by nonlinear refractive-index effects. After pointing out how the electric...

Ansari, Nadeem; Pask, Colin

2001-01-01T23:59:59.000Z

499

Technology Transfer: About the Technology Transfer Department  

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

About the Technology Transfer and Intellectual Property Management About the Technology Transfer and Intellectual Property Management Department The Technology Transfer Department helps move technologies from the Lab to the marketplace to benefit society and the U. S. economy. We accomplish this through developing and managing an array of partnerships with the private and public sectors. What We Do We license a wide range of cutting-edge technologies to companies that have the financial, R & D, manufacturing, marketing, and managerial capabilities to successfully commercialize Lab inventions. In addition, we manage lab-industry research partnerships, ensure that inventions receive appropriate patent or copyright protection, license technology to start-up companies, distribute royalties to the Lab and to inventors and serve as

500

Photoinduced Vibrational Coherence Transfer in Molecular Dimers Dmitri S. Kilin, Oleg V. Prezhdo,*, and Michael Schreiber  

E-Print Network [OSTI]

the sequence of energy- and electron-transfer events that determine collection and storage of solar energy the extremely efficient use of solar energy seen in nature and formulation of the basic principles of energy