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81.
82.
A. Gelberg B. Herskind R. Kalish M. Neiman 《Zeitschrift für Physik A Hadrons and Nuclei》1976,3(1):183-186
The quadrupole moments of the 3/2– and 5/2– states in103Rh have been determined by measuring the precession of the gamma-ray angular distribution following Coulomb excitation;16O and32S beams have been used. The structure of the negative-parity states in103Rh is found to be in agreement with the model of Arima and Iachello. 相似文献
83.
M.L. Halbert P.O. Tjøm I. Espe G.B. Hagemann B. Herskind M. Neiman H. Oeschler 《Nuclear Physics A》1976,259(3):496-512
Gamma-ray transitions from the bombardment of 64Ni by 16O up to 81 Me V were studied in a variety of experiments. Four transitions in coincidence with four previously known transitions in 74Se were discovered. Information on energies, angular distributions, intensities multiplicities and lifetimes is given for these transitions. Excitation functions for this and several other channels are presented. Statistical calculations are in satisfactory agreement with experiment. 相似文献
84.
Stochastic resonance enhances the electrosensory information available to paddlefish for prey capture 总被引:4,自引:0,他引:4
Recent behavior experiments have demonstrated that paddlefish can make use of stochastic resonance while feeding on Daphnia plankton. Here we calculate the information content of the noisy Daphnia signal at the paddlefish rostrum using an exact statistical treatment of threshold stochastic resonance as a minimal neural model. These calculations compare well with experimentally obtained data on paddlefish strikes at Daphnia prey. 相似文献
85.
Yakovlev E. V. Markov A. B. Shepel D. A. Petrov V. I. Neiman A. A. 《Russian Physics Journal》2021,63(10):1804-1809
Russian Physics Journal - The paper presents the adhesive strength measurements of the Ni–Cu surface alloy formed on a copper substrate at a different thickness of the transition layer. The... 相似文献
86.
87.
Russian Physics Journal - A physico-mathematical model of the processes of radiation-induced charging of dielectric materials with open surfaces, irradiated with monoenergetic electrons in the... 相似文献
88.
I. E. Animitsa E. N. Dogodaeva S. S. Nokhrin O. A. Kosareva A. Ya. Neiman 《Russian Journal of Electrochemistry》2010,46(7):734-740
Perovskite phases Ba3In2ZrO8 and Ba4In2Zr2O11 with the nominal concentration of structural oxygen vacancies 1/9 and 1/12, respectively, were synthesized by solid-phase
and solution methods. X-ray diffraction showed cubic symmetry of both phases with the unit cell parameter a = 0.4193(2) and 0.4204(3) nm, respectively. The absence of superstructural lines resulted in the conclusion on statistical
arrangement of oxygen vacancies. Thermogravimetry and mass spectrometry proved that both phases can reversibly absorb water
from gas phase (pH2O = 2 × 10−2 atm) with observed correlation between the concentration of oxygen vacancies and amount of absorbed water. The total water
amount was up to 0.9 mol per formula unit or, if recalculated for perovskite unit ABO3, 0.3 and 0.23 mol H2O, respectively. The temperature curves of coductivity in the atmosphere with various partial water vapor pressures (pH2O = 3 × 10−5 and 2 × 10−2 atm) showed significantly higher conductivity and lower activation energy (0.52 eV) in humid atmosphere due to proton transfer.
The proton conductivity is up to 5 × 10−4 Ohm−1 cm−1 at 300°C for Ba3In2ZrO8 specimen. IR spectrometry showed that protons in the structure exist primarily in OH-groups. 相似文献
89.
N. N. Pestereva I. G. Safonova S. S. Nokhrin A. Ya. Neiman 《Russian Journal of Inorganic Chemistry》2010,55(6):876-882
We compare data on the reciprocal electrosurface transfer (EST) of WO3 and MWO4 components through WO3|MWO4 eutectic heterointerfaces using MWO4 (M = Ca, Sr, Ba) samples prepared by standard ceramic technology (CER) and nitrate-organic technology (N/O); these samples
considerably differ in both the grain size of precursor powders and the grain size of sintered ceramics. When an electric
field is applied, the interpenetration of WO3 and MWO4 components occurs though WO3|MWO4 (M = Ca, Sr, Ba) heterointerfaces. The general (−)WO3 ↔ MWO4
(+) intermigration pattern in the cells is not influenced by tungstate preparation technology. However, interpenetration rates
are far greater for MW4N/O. The transport properties of {MWO4 · xWO3} two-phase eutectic metacomposites manufactured by both technologies were studied. Tungstate and composite manufacturing
technologies have no radical influence on the electric properties (overall and partial conductivity, transference numbers)
of the samples, only changing conductivity versus concentration relationships. Our data well fit the model of formation of
a nonautonomous electrolytic interphase. 相似文献
90.
AB E Pugh DJ Kaptein R Boelens R Bonvin AM 《Journal of the American Chemical Society》2006,128(23):7566-7571
We present a method that significantly enhances the robustness of (automated) NMR structure determination by allowing the NOE data corresponding to unassigned NMR resonances to be used directly in the calculations. The unassigned resonances are represented by additional atoms or groups of atoms that have no interaction with the regular protein atoms except through distance restraints. These so-called "proxy" residues can be used to generate NOE-based distance restraints in a similar fashion as for the assigned part of the protein. If sufficient NOE information is available, the restraints are expected to place the proxies at positions close to the correct atoms for the unassigned resonance, which can facilitate subsequent assignment. Convergence can be further improved by supplying additional information about the possible identities of the unassigned resonances. We have implemented this approach in the widely used automated assignment and structure calculation protocols ARIA and CANDID. We find that it significantly increases the robustness of structure calculations with regard to missing assignments and yields structures of higher quality. Our approach is still able to find correctly folded structures with up to 30% randomly missing resonance assignments, and even when only backbone and beta resonances are present! This should be of significant value to NMR-based structural proteomics initiatives. 相似文献