全文获取类型
收费全文 | 67篇 |
免费 | 1篇 |
国内免费 | 2篇 |
专业分类
化学 | 46篇 |
力学 | 1篇 |
数学 | 9篇 |
物理学 | 14篇 |
出版年
2022年 | 3篇 |
2021年 | 8篇 |
2020年 | 5篇 |
2019年 | 2篇 |
2018年 | 4篇 |
2017年 | 1篇 |
2016年 | 2篇 |
2015年 | 1篇 |
2014年 | 2篇 |
2013年 | 4篇 |
2012年 | 5篇 |
2011年 | 2篇 |
2010年 | 4篇 |
2009年 | 1篇 |
2007年 | 2篇 |
2006年 | 3篇 |
2005年 | 3篇 |
2004年 | 1篇 |
2003年 | 1篇 |
2002年 | 2篇 |
2000年 | 1篇 |
1999年 | 2篇 |
1998年 | 2篇 |
1995年 | 1篇 |
1991年 | 1篇 |
1990年 | 1篇 |
1988年 | 1篇 |
1984年 | 2篇 |
1976年 | 1篇 |
1970年 | 1篇 |
1966年 | 1篇 |
排序方式: 共有70条查询结果,搜索用时 390 毫秒
1.
2.
O. M. Shabanov F. O. Ismailova D. G. Maksumova S. M. Gadzhiev A. O. Magomedova 《Russian Journal of Electrochemistry》2006,42(9):986-989
Effects of high-voltage pulses on electrochemical properties of a molten magnesium electrolyte is studied experimentally. It is established that the electroconductivity of the melt subjected to the pulses and the electrolysis current at a constant voltage increase by up to 25%. The relaxation time of nonequilibrium melt reaches a few tens of minutes and under certain conditions its dynamics is oscillatory. 相似文献
3.
M. M. Rakhimova T. M. Nurmatov N. Z. Yusupov M. A. Ismailova E. Faizullaev 《Russian Journal of Inorganic Chemistry》2013,58(6):719-723
The composition, stability, existence ranges, and degrees of accumulation of iron complexes in solutions of formic, acetic, propionic, butyric, and valeric acids have been determined with the use of the oxidation function and suggested principle of equilibrium modeling from the experimental data obtained by the oxidation potential method. The calculated model parameters can serve as the reference material for targeted synthesis and different thermodynamic calculations. 相似文献
4.
Ibtissam Elaaraj Safae ER. Raouan Asmae Nakkabi Bouchra Es-sounni Ibnsouda Koraichi Noureddine El moualij Mohammed Fahim 《印度化学会志》2022,99(5):100404
New metal complexes of (Zn(II), Co(II), Ni(II) and Cu(II)) based on the ligand 2-(thiophen-2-yl)-1-(thiophen-2-ylmethyl)-1H-benzo[d]imidazole] were synthesized, whose structures were determined with the different spectroscopic techniques 1H NMR,13C NMR, FT-IR, UV–Visible and by mass spectrometry. The thermal analysis was performed by TG-DTA. The antioxidant activity of the ligand and its complexes was evaluated by DPPH (2,2-diphenyl-1-picrylhydrazyl) method, in comparison with the synthetic antioxidant, ascorbic acid. The results obtained showed that the antioxidant activity of the ligand and its complexes is moderate and that the copper complex has a high activity that exceeds that of ascorbic acid. Antimicrobial activity of the ligand and its metal complexes was studied against two Gram-positive bacteria: Bacillus subtilis ILP1428B, Staphylococcus aureus CIP543154 and two Gram-negative bacteria: Pseudomonas aeruginosa ATCC27653, Escherichia coli CIP5412 (American Type Culture Collection)the activity data show that the metal complexes are more potent than the free ligand. 相似文献
5.
Abdullin Kh. A. Zhumagulov S. K. Ismailova G. A. Kalkozova Zh. K. Kudryashov V. V. Serikkanov A. S. 《Technical Physics》2020,65(7):1139-1143
Technical Physics - Nanocrystalline cobalt oxide Co3O4 and composite ZnO/Co3O4 are obtained by chemical deposition from solutions followed by thermal annealing. It is shown that the presence of... 相似文献
6.
7.
M.?K.?MamedovEmail author F.?S.?Kerimova J.?G.?Ismailova 《Russian Journal of General Chemistry》2017,87(1):13-15
Monoesters of malonic and succinic acids have been prepared in high yields by the BF3·OEt2-catalyzed addition of the acids to bicyclo[2.2.1]hept-2-ene. The synthesized monoesters were introduced in the reaction of esterification with saturated monoatomic alcohols С2–С7 in the presence of the KU-2-8 catalyst in the H-form, and the corresponding mixed diesters of dicarboxylic acids were obtained in high yields. 相似文献
8.
D. Razzokov O. B. Ismailova Sh. I. Mamatkulov O. V. Trunilina A. M. Kokhkharov 《Russian Journal of Physical Chemistry A, Focus on Chemistry》2014,88(9):1500-1506
The complex dielectric permittivity of aqueous solutions of tetrahydrofuran and dimethylformamide in wide ranges of temperature (220–300 K) and pressure (0.1–12 MPa) is studied by means of molecular dynamics. The autocorrelation functions of the dipole moments of molecules are calculated. Dielectric permittivity spectra are obtained. The dielectric relaxation times are determined as functions of the tetrahydrofuran and dimethylformamide concentrations in the indicated binary mixtures. The dielectric relaxation frequency shifts toward low frequencies in the range of tetrahydrofuran and dimethylformamide concentrations x ≤ 0.5 molar fraction, due to the formation of heteromolecular structures with hydrogen bonds. This is confirmed by the negative values of the excess dielectric permittivities of binary solutions at x ~ 0.3–0.4 molar fraction. 相似文献
9.
A. I. Ismailova O. I. Gnezdilov A. A. Obynochny L. N. Muranova V. V. Andrianov Kh. L. Gainutdinov A. G. Nasyrova R. R. Nigmatullina F. F. Rakhmatullina A. L. Zefirov 《Applied magnetic resonance》2005,28(3-4):421-430
Electron spin resonance (ESR) of the ternary (DETC)2-Fe2+-NO complex has been applied to determine the nitric oxide production in tissues of rats and snails. A preliminary ESR study of the NO content in tissues of rats before and after artificially induced acute myocardial infarct was performed. The analysis of the obtained results shows that the nitric oxide production during the first hour after the moment of inducing myocardial infarct decreases. It is also demonstrated that ESR may be useful in the study of the influence of the long-term sensitization of snails on the nitric oxide production in their body. The changes in the NO production after the external influences in both cases are discussed. 相似文献
10.