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1.
V. P. Belousov I. M. Belousova A. S. Grenishin O. B. Danilov V. M. Kiselev A. V. Kris’ko A. A. Mak T. D. Murav’eva V. N. Sosnov 《Optics and Spectroscopy》2003,95(6):830-832
The possibility of lasing in the fullerene-oxygen-iodine system with optical excitation of fullerene is studied. Laser radiation with an energy of 25 mJ and a pulse duration of 5–10 ms is obtained. 相似文献
2.
I. N. Belousov A. A. Makhnev 《Proceedings of the Steklov Institute of Mathematics》2007,257(1):S47-S60
Possible orders and subgraphs of the fixed points of a distance-regular graph with the intersection array {8, 7, 5; 1, 1, 4} are found. It is shown that such a graph is not vertex-transitive. 相似文献
3.
A. V. Belousov V. A. Kovarskii 《Journal of Experimental and Theoretical Physics》1998,87(6):1053-1057
We examine nonradiative transitions in molecules with allowance for the effect of a classical polar exterior medium on tunneling
charge transport. The approach allows for the vibrational frequencies of a molecule in the electron transition. In the case
of slow fluctuations, the theory predicts a low-temperature (non-Arrhenius) increase in the tunneling nonradiative transition
rate, and the results agree qualitatively with the experimental data. When the fluctuations of the exterior medium are rapid,
at certain values of the molecular parameters the tunneling decay rate is found to decrease with increasing temperature because
the conditions needed for resonant tunneling are violated.
Zh. éksp. Teor. Fiz. 114, 1944–1953 (December 1998) 相似文献
4.
5.
Catalytic properties of trinuclear thio complexes of rhenium in hydrogenation of m-nitrobenzoic acid
V. M. Belousov T. A. Pal'chevskaya S. V. Volkov V. L. Kolesnichenko L. V. Bogutskaya S. P. Sharavskaya 《Theoretical and Experimental Chemistry》1993,28(3):194-196
Trinuclear thio complexes of rhenium based on Re3S7 and Re3S4 cluster groupings have been synthesized and studied as catalysts in liquid-phase hydrogenation of m-nitrobenzoic acid. Thio complexes containing as Re3S7 cluster surrounded by hydroxo groups are the most active. Complexes with an Re3S4 cluster are less active. Reversible Re3S7 Re3S4 + S8 transitions were found to be possible in solution.Translated from Teoreticheskaya i Éksperimental'naya Khimiya, Vol. 28, No. 3, pp. 239–242, May–June, 1992. 相似文献
6.
V. A. Zazhigalov V. M. Belousov G. A. Komashko A. I. Pyatnitskaya 《Theoretical and Experimental Chemistry》1991,27(5):504-508
The properties of VOx and Co-Cr-O catalysts on carriers of different nature have been studied, synthesized by impregnation and grafting. It has been demonstrated that grafting of the elements to the functional groups of the carrier produces efficient catalysts for the deep oxidation of hydrocarbons (paraffins) and gasoline ejections with a low starting temperature of the catalytic reaction.L. V. Pisarzhevskii Institute of Physical Chemistry, Ukrainian Academy of Sciences, Kiev. Translated from Teoreticheskaya i Éksperimental'naya Khimiya, Vol. 27, No. 5, pp. 578–583, September–October, 1991. Original article submitted July 1, 1991. 相似文献
7.
Pasynskii A. A. Semenova N. I. Torubaev Yu. V. Belousov P. V. Lyssenko K. A. Dobrokhotova Zh. V. 《Russian Chemical Bulletin》2001,50(11):2215-2220
Transmetallation of the Fe3(3-X)2(CO)9 clusters (X = S, Se, or Te) under the action of (-C8H12)PtCl2 afforded new heterometallic clusters (-C8H12)Pt(3-X)2Fe2(CO)6 (2—4, respectively), which were characterized by X-ray diffraction analysis. The (-C8H12)Pt fragment in these clusters is bound to two 3-bridging chalcogen atoms X. The iron atoms are linked to each other. The coordination environment about the Pt atom is planar-square; the Pt...Fe distance is larger than 3.2 . In the synthesis of cluster 4, a new Pt complex was also obtained for which the structure (CO)2Pt(-Te)2Pt(CO)2 (5) was proposed. According to the results of differential scanning calorimetry, thermal decomposition of complex 5 gave rise only to PtTe, whereas complexes 1—4 gave products with the empirical formula Fe2PtX2C2O2. The influence of the steric effects on the geometry of the clusters is discussed. 相似文献
8.
V. M. Belousov T. A. Palchevskaya O. M. Negomedzyanova K. V. Kotegov 《Reaction Kinetics and Catalysis Letters》1985,28(1):41-46
Rhenium (V, VI) complexes with organophosphorus ligands proved to be catalytically active in hexene-1 hydrogenation. The kinetics of this process catalyzed by ReOCl3(PPh3)2 has been examined. The organic ligand in the coordination sphere of rhenium complexes was found to affect selectivity to olefin bonds or nitro groups in the hydrogenation of hydrocarbons.
(V, VI) -1. , ReOCl3 (PPh3)2. , .相似文献
9.
V. M. Belousov T. A. Palchevskaya L. V. Bogutskaya 《Reaction Kinetics and Catalysis Letters》1988,36(2):369-374
Homogeneous hydrogenation studies of (NO2)1–2–C6H3–4–L nitro compounds (where L=–H,–NH2,–COOH,–CHO,–OH,–CH3 and –CH=CH–COOH) catalyzed by Re2S6TThio3Cl2 in dimethylformamide solutions at
and T=343 K, have revealed that the reaction is enhanced by electron-acceptor substitutents and hindered by electron-donor ones.
(NO2)1–2–C6H3–4–L, L=–H,–NH2,–COOH,–CHO,–OH,–CH3,–CH=CH–COOH, Re2S6Thio3Cl2 343 . , .相似文献
10.
A. I. Ermakov A. E. Merkulov A. A. Svechnikova V. V. Belousov 《Journal of Structural Chemistry》2004,45(6):923-928
Orbital relaxation (OR) amounts to variation of the orbital exponents in hydrogen molecules and ions relative to the exponents of the isolated atom; it is represented as the sum of the one- and two-center contributions depending on the effective atomic charge and on the presence of other atoms in the molecule. The procedure for isolating the contributions of the exponent includes treatment of the OR of hydrogen in a special set of neutral and charged atoms and molecules with certain multiplicities of their electronic states. Within the framework of the spin-unrestricted Hartree-Fock method, we found and discussed the optimal values of the exponents of the basis orbitals of hydrogen atoms and molecules using the minimal split valence-shell basis set, the basis set that includes the polarization function, and the expanded set of grouped natural orbitals. A simple energy model is suggested for OR. Expressions are derived for evaluating the exponents of the relaxed orbitals in hydrogen-containing systems.Original Russian Text Copyright © 2004 by A. I. Ermakov, A. E. Merkulov, A. A. Svechnikova, and V. V. Belousov__________Translated from Zhurnal Strukturnoi Khimii, Vol. 45, No. 6, pp. 973–978, November–December, 2004. 相似文献