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1.
KM Varier AM Vinodkumar NVSV Prasad PV Madhusudhana Rao DL Sastry Lagy T Baby MC Radhakrishna NG Puttaswamy JJ Das P Sugathan N Madhavan AK Sinha DO Kataria 《Pramana》1999,53(3):529-533
Large enhancements have been observed in the sub-barrier fusion cross sections for Ti+Ni systems in our previous studies.
Coupled channel calculations incorporating couplings to 2+ and 3− states failed to explain these enhancements completely. A possibilty of transfer channels contributing to the residual enhancements
had been suggested. In order to investigate the role of relevant transfer channels, measurements of one- and two-nucleon transfer
were carried out for 46,48Ti+61Ni systems. The present paper gives the results of these studies. 相似文献
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3.
A. T. Soldatenkov K. B. Polyanskii A. V. Temesgen N. D. Sergeeva V. V. Vysotskaya B. B. Averkiev M. Yu. Antipin N. N. Lobanov 《Chemistry of Heterocyclic Compounds》2004,40(5):641-649
New derivatives of piperidino[4,5-d]dioxane and 3-oxa-7-bicyclo[3.3.1]nonane were obtained by the oxidatively catalysed condensation of 4-aryl-1,2,3,6-tetrahydropyridines with formaldehyde. The direction of this reaction is sharply altered in the presence of manganese dioxide to give 6-oxa-2-azabicylo[3.2.1]octan-4-one — the product of the oxidative condensation of a new type. 相似文献
4.
V. I. Bubnov D. V. Isakov I. G. Lozino-Lozinskaya A. M. Polyanskii 《Journal of Engineering Thermophysics》2008,17(4):292-299
Elements of the liquid-propellant rocket engines (LPREs) are subject to the action of intense mechanical and thermal loads,
which are temporally related to the start-up, normal regime, and switch-off periods of the working cycle. Recoverable LPREs
experience these loads many times. Repeated (cyclic) loads lead to the manifestation of processes typical of fatigue, whereby
residual stresses and (plastic) deformations are retained and accumulated in the LPRE materials. Numerical investigations
using models of the nonstationary thermal and stressed-strained state and the plastic behavior of materials have been performed
in order to determine the limiting numbers of loading cycles for the structural materials employed in various units of LPREs.
A special computational-experimental procedure is described, which allows these materials to be studied in a stressed-strained
state close to that in real LPREs. 相似文献
5.
V. V. Gogosov V. A. Polyanskii I. P. Semenova A. E. Yakubenko 《Journal of Applied Mechanics and Technical Physics》1969,10(1):1-7
The motion of a medium consisting of neutral particles and charged particles of single sign is studied under the assumption that the electric Reynolds number (Rq=u/bE) is large. We calculate the freezingin integral and the Bernoulli and Cauchy-Lagrange integrals, study the fluid motion in a stream tube, and formulate the boundary layer problem. 相似文献
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V. I. Alekseev E. F. Irribarra A. S. Kubankin R. M. Nazhmudinov N. N. Nasonov V. V. Polyanskii V. I. Sergienko 《Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques》2013,7(2):276-278
The spectrum of polarization Bremsstrahlung is measured in backscattering geometry for 7-MeV electrons and a polycrystalline Ni foil without texture. The average size of grains in the foil is 300 nm. The results show the possibility of using a new method in the diagnostics of the atomic structure of polycrystalline materials with nanosized grains. The method is based on measuring the coherent component of polarization Bremsstrahlung. 相似文献
8.
M. Tarasov A. Shul’man O. Polyanskii A. Vystavkin E. Kosarev D. Golubev E. Stepantsov M. Darula O. Harnack Z. Ivanov 《JETP Letters》1999,70(5):340-345
A Josephson high-temperature superconducting (HTSC) submillimeter-wave spectrometer is designed, built, and experimentally
investigated. The integrated detection structure of the spectrometer includes a YBCO Josephson junction on a bicrystalline
boundary, a double-slot or log-periodic antenna, and a low-inductance resistive shunt. The selective detector response and
the response at an intermediate frequency of 1.4 GHz are measured under the action of a signal in the frequency range 350–1250
GHz. Three methods of spectroscopy are investigated using this setup: 1) a method of Hilbert spectroscopy with processing
of the detector response is implemented; 2) it is found that for a wide Josephson line at intermediate frequency (IF) the
response has the same form as the detector response, making it possible to obtain a spectrum and the width of the generation
line from IF response measurements; 3) for a narrow Josephson line the IF response corresponds to the regime of conversion
with self-pumping. A new method is proposed for calculating the emission spectrum. The method consists of simple shift, summation,
and subtraction operations. The advantages of the method are simplicity, high sensitivity, and high resolution.
Pis’ma Zh. éksp. Teor. Fiz. 70, No. 5, 338–343 (10 September 1999) 相似文献
9.
Mathematical Notes - This paper provides an elementary proof of inequalities previously obtained by the operator method and having applications in additive combinatorics. The method of proof allows... 相似文献
10.