全文获取类型
收费全文 | 94篇 |
免费 | 0篇 |
专业分类
化学 | 26篇 |
晶体学 | 1篇 |
力学 | 6篇 |
数学 | 1篇 |
物理学 | 60篇 |
出版年
2022年 | 2篇 |
2021年 | 4篇 |
2020年 | 1篇 |
2019年 | 2篇 |
2018年 | 1篇 |
2017年 | 3篇 |
2016年 | 4篇 |
2015年 | 2篇 |
2014年 | 1篇 |
2013年 | 5篇 |
2011年 | 1篇 |
2010年 | 9篇 |
2009年 | 4篇 |
2008年 | 1篇 |
2007年 | 2篇 |
2006年 | 2篇 |
2005年 | 2篇 |
2004年 | 3篇 |
2002年 | 2篇 |
2001年 | 1篇 |
2000年 | 4篇 |
1999年 | 2篇 |
1998年 | 3篇 |
1997年 | 3篇 |
1994年 | 1篇 |
1993年 | 1篇 |
1991年 | 2篇 |
1989年 | 1篇 |
1988年 | 3篇 |
1987年 | 1篇 |
1985年 | 5篇 |
1984年 | 6篇 |
1982年 | 1篇 |
1981年 | 1篇 |
1980年 | 1篇 |
1978年 | 2篇 |
1974年 | 1篇 |
1969年 | 1篇 |
1968年 | 1篇 |
1967年 | 1篇 |
1965年 | 1篇 |
排序方式: 共有94条查询结果,搜索用时 0 毫秒
31.
R.I. Dzhelyadin S.V. Golovkin A.S. Konstantinov V.F. Konstantinov V.P. Kubarovski L.G. Landsberg V.A. Mukhin V.F. Obraztsov T.I. Petrunina Yu.D. Prokoshkin V.A. Viktorov A.M. Zaitsev 《Physics letters. [Part B]》1981,102(4):296-298
Sixty events of the rare eletromagnetic decay ω→π0μ+μ? have been detected. The branching ratio for this decay been obtained to be BR(ω→π0μ+μ?) = (9.6 ± 2.3) × 10?5. The effective mass spectrum for muon pairs has been measured and the electromagnetic transition form-factor for the vertex ωπ0, Fω(mμμ2;mπ20) = (1 ? mμμ2/Λ2)?1, has been determined, Λ = (0.65 ± 0.03) GeV/c2. The results are compared with the vector-meson dominance model. 相似文献
32.
33.
Egorova A. V. Viktorov N. B. Starova G. L. Dogadina A. V. 《Russian Journal of General Chemistry》2019,89(9):1765-1771
Russian Journal of General Chemistry - The reaction of dialkyl 2-[(dialkoxyphosphoryl)ethynyl]-2-(arylamino)malonates with bases (CH3COOK, t-BuOK) can serve as a method for preparing original... 相似文献
34.
V. T. Kogan D. S. Lebedev Yu. V. Chichagov I. V. Viktorov I. T. Amanbaev S. A. Vlasov 《Technical Physics》2009,54(11):1714-1720
An ion source with electron ionization is considered. The charged-particle flow at the exit from this source has a cross section
of ∼0.1 × 0.1 mm, an angle spread of 2° × 2°, a relative energy spread of <0.5%, and an energy range of 0.5–3.0 keV. This
ion source is intended for systems where an ion beam is focused in two mutually perpendicular directions. The ion source design
makes it possible to ionize a sample locally (in a volume of ∼10 mm3), where the concentration of the particles under study exceeds the concentration averaged over the volume of the vacuum chamber
of the mass spectrometer by two to three orders of magnitude. The ion-optical properties of the source are numerically simulated,
and the optimum parameters of the source are chosen. Examples of the application of the ion source are given for the mass-spectrometric
determination of metal salts in aqueous solutions and of gases and volatile compounds in samples in various phase states. 相似文献
35.
36.
R. B. Tagirov N. I. Kessel' N. M. Shubalova N. I. Kuksinskii Zh. P. Trofimova E. M. Zub Zh. T. Arsen'eva A. K. Lapkovskii V. G. Zakharov M. P. Arbuzov N. I. Sologub V. E. Domrachev Yu. I. Paskal' V. I. Psarev V. G. Kirii V. V. Viktorov O. B. Butusov V. M. Khulugurov B. D. Dobanov V. A. Grigorov Yu. Z. Babaskin L. V. Ivanisenko V. S. Kopan' E. N. Vlasova M. P. Ravdel' O. N. Petrova O. I. Evdokimova I. P. Lukin V. A. Lisin B. A. Kononov A. V. Nevedomskii V. G. Gusev B. N. Poizner V. N. Gorshenkov I. I. Markov I. M. Lipovskii L. M. Sverdlov A. G. Finkel' 《Russian Physics Journal》1978,21(10):1385-1391
37.
N. N. Antonov A. A. Baldin V. A. Viktorov V. A. Gapienko G. S. Gapienko V. N. Gres’ M. A. Ilyushin V. A. Korotkov A. I. Mysnik A. F. Prudkoglyad A. A. Semak V. I. Terekhov V. Ya. Uglekov M. N. Ukhanov B. V. Chuiko S. S. Shimanskii 《JETP Letters》2016,104(10):662-665
Formation of the d and t cumulative light nuclear fragments emitted from the nucleus with large transverse momenta at an angle of 35° in the laboratory frame is investigated. The data on collisions of 50-GeV protons with the C, Al, Cu, and W nuclei are collected using the extracted proton beam of the IHEP accelerator and the SPIN detector. The results indicate that the dominant contribution to formation of nuclear fragments comes from the local process of direct knockout from the nucleus. 相似文献
38.
S.?V.?Bobashev N.?P.?Mende P.?A.?Popov V.?A.?Sakharov V.?A.?Berdnikov V.?A.?Viktorov S.?I.?Oseeva G.?D.?Sadchikov 《Technical Physics》2009,54(4):511-519
In part 1 of this paper, an algorithm for numerically solving the inverse problem of motion of a solid through the atmosphere is described that constitutes the basis for identifying the aerodynamic characteristics of an object from trajectory data and the respective identification procedure is presented. In part 2, methods evaluating the significance of desired parameters and adequacy of a mathematical model of motion, approaches to metrological certification of experimental equipment, and results of testing the algorithm are discussed. 相似文献
39.
S. I. Bityukov G. V. Borisov V. A. Dorofeev R. I. Dzhelyadin S. V. Golovkin M. V. Gritzuk A. S. Konstantinov V. P. Kubarovski N. Yu. Kul'man A. I. Kulyavtzev V. F. Kurshetzov L. G. Landsberg V. V. Lapin V. V. Molchanov V. A. Mukhin Yu. B. Novozhilov V. F. Obraztzov V. I. Solyanik V. A. Viktorov A. M. Zaitsev 《Zeitschrift fur Physik C Particles and Fields》1991,50(3):451-454
The radiative decayη′→π + π ? γ has been studied with the statistics of ?2000 events. Different ways of describingm ππ distribution are considered. It is shown that if the dominating contribution to this process is made by the decay channel η′→ργ, then the generally accepted ways of describing the ρ peak do not agree with experimental data. 相似文献
40.