Results 271 to 280 of about 1,093,627 (309)
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Trapping centers in x-irradiated quartz
Soviet Physics Journal, 19691. These studies of the effect of annealing on the luminescent and dielectric properties of synthetic quartz confirm the suggestion that electrons localized at traps are responsible for the additional polarization which occurs during irradiation of crystalline quartz; these results also show that the traps are nonimpurity defects which form during ...
V. G. Voevodin, G. I. Potakhova
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Trap-centers of self-interstitials in silicon
Applied Physics, 1980Deep-level profiles were measured radially acrossn-type FZ silicon wafers containing A-swirl defects by applying DLTS to an array of Schottky contacts. The trapparameters were obtained very accurately using a computer-fit procedure for the full DLTS peaks. Two acceptor levels atE c −0.49 eV (σ
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One-center trapping of the holes in alkali halide crystals
Physical Review B, 1996The geometric and electronic structures and electron excitation energies for the one-center hole polaron state and several possible intermediate states corresponding to the hole relaxation in KI are calculated using the static embedded molecular cluster method.
, Shluger, , Gale
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Excitons trapped at impurity centers in highly ionic crystals
Physical Review B, 1985It is shown that there are several examples of impurity ions in ionic host crystals all of whose localized excited states lie above the ionization energy of the impurity in the crystal (${\mathrm{SrF}}_{2}$:${\mathrm{Yb}}^{2+}$, ${\mathrm{BaF}}_{2}$:${\mathrm{Eu}}^{2+}$, and others).
, McClure, , Pedrini
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Exciton states of the antenna and energy trapping by the reaction center
Photosynthesis Research, 1994Forward and back energy transfer between antenna and RC in the photosynthetic apparatus of purple bacteria was studied taking into account the exciton states of the antenna. The exciton states were calculated for core antenna configuration in the form of a circular aggregate of N identical BChl molecules with the CN-symmetry.
V I, Novoderezhkin, A P, Razjivin
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Trapped-hole centers in neutron-irradiated synthetic quartz
Physical Review B, 1994EPR signals of two defect centers in neutron-irradiated high-purity quartz have been analyzed. The principal values and the anisotropy of the g tensors suggest an attribution to peroxy radicals and nonbridging oxygen hole centers.
Azzoni, C +2 more
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Trapped Electron Centers and Trapped Hole Centers in Heavily Doped KCl: Tl. I. Thermal Glow Study
Journal of the Physical Society of Japan, 1979Thermal glow curves of KCl crystals containing 0.2∼4.2 mole% of TlCl are measured after X-ray irradiation at 77 K. Trapped electron and trapped hole centers such as Tl 0 , Tl 2+ , Tl 2 + , (Tl 2 + )' and Tl 2 3+ centers are found to be concerned in the thermal glow phenomena.
Yasuko Toyotomi, Ryumyo Onaka
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Immuno‐Spin Trapping: Detection of Protein‐Centered Radicals
Current Protocols in Toxicology, 2005AbstractProtein‐centered radicals are involved in biological oxidative damage induced by drugs, environmental hazards, and cellular reactive oxygen species. Presently, the technique most widely used to study protein‐centered radicals is electron spin resonance (ESR; also known as electron paramagnetic resonance, EPR); used either directly or in ...
Dario C, Ramirez, Ronald P, Mason
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Steam Trap Maintenance As A Profit Center
Strategic Planning for Energy and the Environment, 1997Probably one of the most overlooked profit centers in industrial management strategy is savings in energy costs. Every $1 in certified energy savings is often worth over $10 in increased sales. The author has found from actual practice that there is big corporate profit in a shrewd, diligent steam trap management program.
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Deep muonium state in InSb: Recombination center vs. trapping center
Physica B: Condensed Matter, 2006Abstract The bound state of an isotropic muonium atom has been detected in both n- and p-type InSb using a high-field μ SR technique. The hyperfine constant obtained for this center ( A = 2464 ± 1 MHz ) is characteristic of deep-level Mu 0 centers at tetrahedral interstitial sites in other cubic semiconductors, which ...
V.G. Storchak +7 more
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