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xvi, 394 p. : 25 cm
Topics: Charge transfer in biology, Charge transfer
Click here to view the University of Florida catalog record
Topics: Charge transfer, Polymers
Typescript
Topics: Semiconductors, Polymers, Charge transfer, Matter
Typescript
Topics: Collisions (Nuclear physics), Charge transfer, Molecular dynamics
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4.0
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xiv, 406 p. : 25 cm
Topics: Spectrum analysis -- Instruments, Charge transfer devices (Electronics)
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310
May 6, 2010
05/10
by
Cuddihy, E.; Moacanin, J.; Rembaum, A
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Graft and block charge transfer copolymers of vinyl aromatic hydrocarbons
Topics: AROMATIC COMPOUNDS, POLYMER CHEMISTRY, BLOCK COPOLYMERS, CHARGE TRANSFER, GRAFTING, HYDROCARBONS,...
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9.0
Oct 6, 2020
10/20
by
Hobson, G. S
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xvi, 207 pages : 25 cm
Topics: Charge transfer devices (Electronics), Circuits à transfert de charge (Électronique), CHARGE...
A novel 96-microwell-based visible spectrophotometric assay was developed and validated for the determination of Azithromycin in tablets and capsules. The formation of a coloured charge-transfer complex between Azithromycin as n-electron donor, and 2, 3-dichloro-5, 6-dicyano-1, 4-benzoquinone, as π-electron acceptor, was investigated and employed as a basis for the development of the proposed assay in a 96 micro well Thermomax plate reader. A UV-Visible spectrophotometer was used for the study...
Topics: Charge-Transfer Complexation, DDQ, Azithromycin, Spectrophotometric Determination, Thermodynamic...
We studied the temperature-dependence of mass and charge transport (ionic conductivity, self-diffusion, fluidity, and dielectric relaxation) in polar organic liquids and their electrolytes. Previous studies have described transport in terms of mutually incompatible models that provide inadequate descriptions of experimental data, often using empirical equations whose fitting parameters have no physical significance. Consequently there is no general molecular-level picture that adequately...
Topics: DTIC Archive, OKLAHOMA UNIV NORMAN, *ELECTROLYTES, CHARGE TRANSFER, CONDUCTIVITY, TEMPERATURE
Several new developments in the effective fragment potential (EFP) and the fragment molecular orbital (FMO) methods have been accomplished. A new EFP charge transfer (CT) interaction energy was derived and implemented in GAMESS. The new CT approach, based on quasi-atomic molecular bond orbitals, cuts the time required for this term by a factor of two, with little loss in accuracy. The analytic gradient was derived and implemented as well, so one can optimize geometries and determine reaction...
Topics: DTIC Archive, IOWA STATE UNIV AMES, *MOLECULAR ORBITALS, CHARGE TRANSFER
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xvi, 300 p. :
Topics: Electron transport, Biological transport, Proteins, Charge transfer in biology, Bioelectrochemistry
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46
Oct 21, 2010
10/10
by
Séquin, Carlo H.; Tompsett, Michael F., joint author
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Includes bibliographical references (p. [285]-309)
Topics: Charge transfer devices (Electronics), Dispositifs à transfert de charge, Ladungsgekoppeltes...
An invention relating to the use of a standing acoustic wave charge storage device as an image readout device is described. A frequency f sub 1 was applied to the storage transfer device to create a traveling electric field in the device in one direction along a straight line. A second frequency f sub 2 was applied to the charge transfer device to create a traveling electric field opposite to the first traveling electric field. A standing wave was created. When an image was focused on the...
Topics: NASA Technical Reports Server (NTRS), ACOUSTICS, CHARGE TRANSFER DEVICES, IMAGING TECHNIQUES,...
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320
Jun 9, 2011
06/11
by
Waszak, Martin R
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This paper describes the formulation of a model of the dynamic behavior of the Benchmark Active Controls Technology (BACT) wind-tunnel model for application to design and analysis of flutter suppression controllers. The model is formed by combining the equations of motion for the BACT wind-tunnel model with actuator models and a model of wind-tunnel turbulence. The primary focus of this paper is the development of the equations of motion from first principles using Lagrange's equations and the...
Topics: ION OPTICS, PLASMA SHEATHS, CHARGE TRANSFER, WEAR TESTS, IMPINGEMENT, MATHEMATICAL MODELS, ESTIMATES
Click here to view the University of Florida catalog record
Topics: Diodes, Avalanche, Diodes, Semiconductor, Indium gallium arsenide, Indium aluminum arsenide, Charge...
This proposal is primarily concerned with the design, synthesis, and photophysical characterization of photochemically stable metal-organic chromophores with low-lying triplet excited states, intended to possess systematically variable excited state absorption and emission properties. The main project theme is to investigate alternate pathways to populate long-lived excited triplet states of interest for Air Force applications including power limiting, ultrafast switching, remote...
Topics: DTIC Archive, BOWLING GREEN STATE UNIV OH, *CHROMOPHORES, *ORGANOMETALLIC COMPOUNDS, CHARGE...
A charge coupled device (CCD) camera's performance has been degraded by damage produced by 14 MeV neutrons (n) from the Rotating Target Neutron Source. High energy neutrons produce atomic dislocation in doped silicon electronics. This thesis explores changes in Dark Current (J), Charge Transfer Inefficiency (CTI), and Contrast Transfer Function (CTF) as measures of neutron damage. The camera was irradiated to a fluence, Phi, of 6.60 x 10 (exp 12) n/ cm2. The camera temperature was lowered from...
Topics: Neutron Radiation, Charge Coupled Device, Dark Current, Contrast Transfer Function, Charge Transfer...
2,578
2.6K
May 23, 2011
05/11
by
NON
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This document includes information on all peer reviewed projects funded by the Office of Life and Microgravity Sciences and Applications, Life Sciences Division during fiscal year 1995. Additionally, this inaugural edition of the Task Book includes information for FY 1994 programs. This document will be published annually and made available to scientists in the space life sciences field both as a hard copy and as an interactive Internet web page
Topics: ACOUSTIC ATTENUATION, TAPS, CHARGE TRANSFER, ELECTROMAGNETIC WAVE FILTERS, REDUNDANCY, SOUND WAVES,...
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232
Jun 1, 2011
06/11
by
Wallner, Lewis E.; Saari, Martin J
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As part of an investigation of the performance and operational characteristics of the axial-flow gas turbine-propeller engine, conducted in the Cleveland altitude wind tunnel, the performance characteristics of the compressor and the turbine were obtained. The data presented were obtained at a compressor-inlet ram-pressure ratio of 1.00 for altitudes from 5000 to 35,000 feet, engine speeds from 8000 to 13,000 rpm, and turbine-inlet temperatures from 1400 to 2100 R. The highest compressor...
Topics: MODELS, CHARGE COUPLED DEVICES, IMAGING SPECTROMETERS, X RAY ASTROPHYSICS FACILITY, PROTONS,...
A CCD parallel-to-serial converter comprising two successions of charge transfer stages, recurrently side-loaded with respective ones of parallelly supplied charge packets, then serially unloaded by time-interleaved respective shift register operations. The charge packets converted to time-division-multiplexed serial form are supplied to a shared electrometer, and the electrometer response is de-multiplexed. Preferably, shift register operations are carried forward concurrently at the same...
Topics: NASA Technical Reports Server (NTRS), CHARGE COUPLED DEVICES, CHARGE TRANSFER, ELECTROMETERS,...
A front-illuminated CCD of relative high quantum efficiency (QE) and high charge transfer efficiency (CTE) utilizes an open-phase region for receiving photons and two-phase gate regions (.phi..sub.1 and .phi..sub.2) for transferring electrons collected in one pixel to the next. The open-phase region is implanted with additional n-type elements (phosphorus) in order to increase the potential of the CCD channel in the open-phase region for collection of electrons and additionally implanted with...
Topics: NASA Technical Reports Server (NTRS), CHARGE COUPLED DEVICES, CHARGE TRANSFER, ILLUMINATING,...
For the first time, the excitonic properties of realistic CdS and CdTe tetrahedral clusters have been investigated by first principle density functional theory method with quasi-particle corrections and many body electron-hole interactions. Specific aims of the research included characterization of the confinement effects on band gap and the exciton binding strength with an ultimate goal to address charge relaxation in optoelectronic devices. The computed optical transition energy is in...
Topics: DTIC Archive, NANYANG TECHNOLOGICAL UNIV (SINGAPORE), *DENSITY FUNCTIONAL THEORY, CHARGE TRANSFER,...
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12
Oct 22, 2018
10/18
by
Tamaru, Kenji, 1923-
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viii, 208 pages : 24 cm
Topics: Catalysis, Electron donor-acceptor complexes, Acid-Base Equilibrium, Catalyse, Équilibre...
Graphene is attractive for spintronics due to spin transport at room temperature with long spin diffusion lengths. During this grant period, two important aspects have been investigated: (1) Spin injection and transport in graphene, (2) Spin and charge transport in doped graphene. Main results include the first demonstration of tunneling spin injection into graphene, identification of contact effects as a major source of spin relaxation, realization of high spin injection efficiency, long spin...
Topics: DTIC Archive, CALIFORNIA UNIV REGENTS RIVERSIDE, *GRAPHENE, CHARGE TRANSFER, RELAXATION, ROOM...
Parallelled charge transfer channels have multiple-phase-clocked gate electrodes overspanning them in one of a number of arrangements conditioning the transfer of charge packets in opposing directions in adjacent charge transfer channels. Three-phase, four-phase, five-phase and six-phase clocking arrangements constructed in three layers of polysilicon embody the invention.
Topics: NASA Technical Reports Server (NTRS), CHARGE COUPLED DEVICES, CHARGE TRANSFER, ELECTRODES, SHIFT...
Topics: DTIC Archive, Stewart, Diane K, MICRION CORP PEABODY MA, *X RAY APPARATUS, DEPOSITION, TUNGSTEN,...
For abstract, see N78-30521.
Topics: NASA Technical Reports Server (NTRS), ARRAYS, CHARGE TRANSFER DEVICES, TIME LAG, IMAGING...
Journal of Research of the National Bureau of Standards
Topics: Energy surface, Li(22S), Li(22P), H2(X1S+g), Hartree-Fock, energy transfer, resonance state,...
Topics: DTIC Archive, MICRION CORP PEABODY MA, *ELECTRON GUNS, *ELECTRON OPTICS, BEAM FORMING, FOCUSING,...
We are creating a novel multifunctional solar biofuel generating platform by coupling designed protein charge separation constructs with newly developed photonic metamaterials -- metal/dielectric composites that control light in ways not possible with traditional optics. To accomplish this, we have assembled a team of laboratories who are each at the forefront of the new technologies necessary in its construction -- de novo protein design (Koder), nanoplasmonic metamaterials (Crouse) and...
Topics: DTIC Archive, CITY UNIV OF NEW YORK RESEARCH FOUNDATION, *PHOTONICS, BIOMASS, CHARGE TRANSFER,...
The primary goal of this research is to develop a solid-state high definition television (HDTV) imager chip operating at a frame rate of about 170 frames/sec at 2 Megapixels per frame. This imager offers an order of magnitude improvement in speed over CCD designs and will allow for monolithic imagers operating from the IR to the UV. The technical approach of the project focuses on the development of the three basic components of the imager and their integration. The imager chip can be divided...
Topics: NASA Technical Reports Server (NTRS), AVALANCHE DIODES, CHARGE TRANSFER, CHARGE TRANSFER DEVICES,...
This report covers: (1) invention of a new, ultra-low noise, low operating voltage APD which is expected to offer far better performance than the existing volume doped APD device; (2) performance of a comprehensive series of experiments on the acoustic and piezoelectric properties of ZnO films sputtered on GaAs which can possibly lead to a decrease in the required rf drive power for ACT devices by 15dB; (3) development of an advanced, hydrodynamic, macroscopic simulator used for evaluating the...
Topics: NASA Technical Reports Server (NTRS), CHARGE TRANSFER DEVICES, HIGH DEFINITION TELEVISION, IMAGING...
Topics: DTIC Archive, Dressler, Rainer A, PHILLIPS LAB HANSCOM AFB MA, *CHEMICAL REACTIONS, *ION MOLECULE...
Improved charge-transfer fluorescent dyes have been developed for use as molecular probes. These dyes are based on benzofuran nuclei with attached phenyl groups substituted with, variously, electron donors, electron acceptors, or combinations of donors and acceptors. Optionally, these dyes could be incorporated as parts of polymer backbones or as pendant groups or attached to certain surfaces via self-assembly-based methods. These dyes exhibit high fluorescence quantum yields -- ranging from...
Topics: NASA Technical Reports Server (NTRS), CHARGE TRANSFER, DYES, ELECTRON TRANSFER, FLUORESCENCE, DONOR...
Presented here are the details of the astrometric reductions from the x, y data to mean right ascension (R.A.), declination (decl.) coordinates of the third U.S. Naval Observatory CCD Astrograph Catalog (UCAC3). For these new reductions we used over 216,000 CCD exposures. The Two-Micron All-Sky Survey (2MASS) data are used extensively to probe for coordinate and coma-like systematic errors in UCAC data mainly caused by the poor charge transfer efficiency of the 4K CCD. Errors up to about 200...
Topics: DTIC Archive, NAVAL OBSERVATORY WASHINGTON DC, *ASTRONOMY, EFFICIENCY, REDUCTION, ERRORS, CHARGE...
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457
May 23, 2011
05/11
by
Carlson, Harry W.; Chu, Julio; Ozoroski, Lori P.; McCullers, L. Arnol
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The computer codes, AER02S and WINGDES, are now widely used for the analysis and design of airplane lifting surfaces under conditions that tend to induce flow separation. These codes have undergone continued development to provide additional capabilities since the introduction of the original versions over a decade ago. This code development has been reported in a variety of publications (NASA technical papers, NASA contractor reports, and society journals). Some modifications have not been...
Topics: CHARGE TRANSFER, ION STORAGE, CYLINDRICAL BODIES, GROUND STATE, NITROGEN, HYDROGEN, CARBON...
Resistive ladder networks are commonly used as the charging and isolation means for Marx type generators. The efficiency is limited to 50% and the charging time is long or equivalently the PRR (Pulse Repetition Rate) is low. The efficiency can be considerably improved by replacing the resistive ladder with inductor elements and the PRR is also improved. In this paper is it shown that by introducing mutual coupling, k, between the two parallel inductors in each stage of the ladder network, the...
Topics: DTIC Archive, AIR FORCE RESEARCH LAB KIRTLAND AFB NM DIRECTED ENERGY DIRECTORATE, *CHARGE TRANSFER,...
The research underway is concerned with both the general theory and detailed calculations of differential cross sections for charge exchange and electron impact ionization occurring in collisions of simple atomic, ionic, and molecular species. Originator-supplied key words include: Atomic collisions, Charge exchange cross sections, and Electron impact ionization cross sections.
Topics: DTIC Archive, Girardeau,M D, OREGON UNIV EUGENE, *ELECTRON IMPACT SPECTRA, *IONIZATION,...
Electrochemical ultracapacitors (ECs) have been developed using graphitic nanostacks as the electrode material. The advantages of this technology will be the reduction of device size due to superior power densities and relative powers compared to traditional activated carbon electrodes. External testing showed that these materials display reduced discharge response times compared to state-of-the-art materials. Such applications are advantageous for pulsed power applications such as burst...
Topics: NASA Technical Reports Server (NTRS), ELECTROCHEMICAL CAPACITORS, GRAPHITE, CHARGE TRANSFER,...
Radical polymers (i.e., macromolecules composed of non-conjugated backbone architectures and with stable radical sites present on the pendant groups of these backbones) are emerging as promising materials for organic electronic applications. While these materials have been used in a limited number of electrolyte-supported energy conversion and storage applications, the work presented within summarizes the first systematic findings of structure-property-performance relationships with respect to...
Topics: DTIC Archive, PURDUE UNIV LAFAYETTE IN, *CHARGE TRANSFER, *PHOTOELECTRIC CELLS(SEMICONDUCTOR),...
A pressure transducer is described in which the sensing element is a crystal of the monomeric charge transfer complex of pyrene and tetracyanoethylene.
Topics: NASA Technical Reports Server (NTRS), CHARGE TRANSFER, CRYSTAL GROWTH, MONOMERS, PRESSURE SENSORS,...
The resistance of dual-gated bilayer graphene is measured as a function of temperature and gating electric fields in the Corbino geometry which precludes edge transport. The temperaturedependent resistance is quantitatively described by a two channel conductance model including parallel thermal activation and variable range hopping channels, which gives the electric-field-dependent band gap whose magnitude is found to be in good agreement with infrared absorption experiments. Low temperature...
Topics: DTIC Archive, MARYLAND UNIV COLLEGE PARK DEPT OF PHYSICS, *CHARGE TRANSFER, REPRINTS, DUAL CHANNEL,...
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247
Aug 2, 2010
08/10
by
Yamaguchi, K.; Hansman, R. John, Jr.; Kazmierczak, Michae
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The focus here is on a deterministic model of the surface roughness transition behavior of glaze ice. The initial smooth/rough transition location, bead formation, and the propagation of the transition location are analyzed. Based on the hypothesis that the smooth/rough transition location coincides with the laminar/turbulent boundary layer transition location, a multizone model is implemented in the LEWICE code. In order to verify the effectiveness of the model, ice accretion predictions for...
Topics: CHARGE TRANSFER, LOSSES, HOLES (ELECTRON DEFICIENCIES), ION DENSITY (CONCENTRATION), ION...
This research provided insight into the factors which limit charge mobility in organic semiconductors by performing theoretical studies of electronic structure and defect stability in n-type and p-type semiconductors. In this research we also investigated chemical defects resulting from x-ray irradiation. A description of the research accomplishments is provided in the pages below, as well as in the archival publications supported by this grant.
Topics: DTIC Archive, PALO ALTO RESEARCH CENTER INC CA, *SEMICONDUCTORS, CHARGE TRANSFER,...
Extending the work reported in Technical Report No. 71 (October 20, 1994), we computed the average local ionization energies on the surfaces of two more possible precursors to 1. No minima were found at the positions to be nitrated, indicating that these are not favored sites for this purpose.
Topics: DTIC Archive, Politzeer, Peter, NEW ORLEANS UNIV LA DEPT OF CHEMISTRY, *AROMATIC HYDROCARBONS,...
The main purpose of this proposal is to develop a new efficient method for multi-scale modeling of semiconductor nanostructures. Our approach provides a link between the ab initio method and the semi-empirical method based on continuum or tight-binding approach. The link is through the use of boundary-integrals involving Green s functions of separable domains. The method is most efficient when the system can be decomposed into two or more domains coupled through the interactions at the boundary...
Topics: DTIC Archive, ACADEMIA SINICA TAIPEI (TAIWAN), *SEMICONDUCTORS, BOUNDARIES, CHARGE TRANSFER,...
The design, synthesis and characterization of a new series of conjugated macromolecules bearing ferrocene as a highly efficient electron donor material coupled to 2,5-di(alcoxy) benzene ethynylene(s) as a pi-conjugated connector and benzoate or phenyl carboxylic acid as termini and electron attractor groups to create a push-pull effect with efficient charge transfer, D-pi-A, are reported. The rigid, rod-like phenyleneethynylene chain bears flexible dodecanoxy group chains to impart liquid...
Topics: DTIC Archive, Ziolo,Ronald, CIQA Saltillo Mexico, liquid crystals, absorption, Chromophores,...
1,048
1.0K
Jul 26, 2010
07/10
by
Burrus, D. L.; Chahrour, C. A.; Foltz, H. L.; Sabla, P. E.; Seto, S. P.; Taylor, J. R
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The Energy Efficient Engine (E3) combustor effort was conducted as part of the overall NASA/GE E3 Program. This effort included the selection of an advanced double-annular combustion system design. The primary intent of this effort was to evolve a design that meets the stringent emissions and life goals of the E3, as well as all of the usual performance requirements of combustion systems for modern turbofan engines. Numerous detailed design studies were conducted to define the features of the...
Topics: CHARGE TRANSFER, POLARONS, SUPERCONDUCTIVITY, COPPER OXIDES, HIGH TEMPERATURE SUPERCONDUCTORS, PAIR...
This report results from a contract tasking Moscow State University as follows: Conjugated polymers are promising materials for many photonics applications, in particular, for photovoltaic and solar cell devices. This project will study the possibility to use conjugated polymers as active media in solar cell applications. The potential advantages of conjugated polymers solar cells (CPSC) are: the electronic properties of conjugated polymers can be tuned to match the solar spectrum, the...
Topics: DTIC Archive, Paraschuk, Dmitry Y, MOSCOW STATE UNIV (RUSSIA), *SOLAR CELLS, *CONJUGATED POLYMERS,...
Microbial fuel cells (MFCs) have been the focus of substantial research interest due to their potential for long-term, renewable electrical power generation via the metabolism of a broad spectrum of organic substrates, although the low power densities have limited their applications to date. Here, we demonstrate the potential to improve the power extraction by exploiting biogenic inorganic nanoparticles to facilitate extracellular electron transfer in MFCs. Simultaneous short-circuit current...
Topics: DTIC Archive, NAVAL RESEARCH LAB WASHINGTON DC CHEMISTRY DIV, *ELECTRON TRANSPORT, *FUEL CELLS,...
