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31.
32.
Z.B. Maksić K. Rupnik M. Eckert-Maksić 《Journal of Electron Spectroscopy and Related Phenomena》1979,16(3):371-377
The keto—enol tautomerism in malonaldehyde and some related 1,3-diketones is thoroughly discussed by the calculation of inner-core binding energies. The semiempirical wave-functions were obtained by the self-consistent charge (SCC—MO) molecular orbital procedure. The calculated O(1s) binding energies are generally in good agreement with available experimental data. The discrepancy found for the alcohol-type oxygen in acetylacetone is so large that it strongly indicates an error in experimental assignment. The calculations also provide conclusive evidence that enol-forms possess asymmetric hydrogen-bonded protons. 相似文献
33.
Miljenko Perić Mirjana Mladenović Jasenka Fejzo Christel M. Marian Pablo J. Bruna 《Chemical physics letters》1982,88(6):547-552
The results of an ab initio study of the vibronic and rotational structure in the 2Π state of HNO+ are presented. It is shown that the absorption spectrum at 7200 Å observed by Herzberg could be caused by the transition from the ground to the first excited electronic state of HNO+ 相似文献
34.
Mirjana STOJANOVIC 《数学学报(英文版)》2006,22(2):393-406
We consider nonlinear parabolic equations with nonlinear non-Lipschitz's term and singular initial data like Dirac measure, its derivatives and powers. We prove existence-uniqueness theorems in Colombeau vector space yC^1,W^2,2([0,T),R^n),n ≤ 3. Due to high singularity in a case of parabolic equation with nonlinear conservative term we employ the regularized derivative for the conservative term, in order to obtain the global existence-uniqueness result in Colombeau vector space yC^1,L^2([0,T),R^n),n≤ 3. 相似文献
35.
Kramarić Tomislava Pavić Bach Mirjana Pejić Dumičić Ksenija Žmuk Berislav Žaja Maja Mihelja 《Central European Journal of Operations Research》2018,26(3):783-807
Central European Journal of Operations Research - This paper focuses on the analysis of business practice of insurance companies in selected post-transition European countries. Specifically, it... 相似文献
36.
Ćilerdžić Jasmina Galić Milica Ivanović Žarko Brčeski Ilija Vukojević Jelena Stajić Mirjana 《Applied biochemistry and biotechnology》2019,187(4):1371-1383
Applied Biochemistry and Biotechnology - Biological pretreatment of the lignocellulosic residues, in which white-rot fungi have a crucial role, has many advantages compared to the chemical,... 相似文献
37.
Vrankić Ilko Herceg Tomislav Pejić Bach Mirjana 《Central European Journal of Operations Research》2021,29(3):1001-1019
Central European Journal of Operations Research - In this paper, we analyse the company behaviour in duopoly taking into account the most common strategies, including dominant, reactive,... 相似文献
38.
Miroslav M. Ristić Muna M. Aoneas Mirjana M. Vojnović Sava M. D. Galijaš Goran B. Poparić 《Plasma Chemistry and Plasma Processing》2018,38(4):903-916
Electron impact excitation rate coefficients for singlet and triplet electronic states of the carbon monoxide molecule have been calculated under non-equilibrium conditions in the presence of radio-frequency electric field. A Monte Carlo simulation of electron transport has been performed in order to determine non-equilibrium electron energy distribution functions within one period of applied electric field. By using these distribution functions and corresponding cross sections, the excitation rate coefficients have been calculated for all electronic states of CO in the frequency range from 13.56 up to 500 MHz, at reduced root mean square electric field values ranging from 200 to 700 Td. We expect these rates to be valuable for modeling radio-frequency CO plasmas since excited neutrals exhibit greater chemical reactivity than neutrals in ground electronic state, hence altering many properties of plasma. 相似文献
39.
Agne??KaporEmail author Dieter?Zobel Marianna?Strümpel Ljilja?Torovi? Mirjana?Popsavin 《Journal of chemical crystallography》2005,35(9):687-695
Methyl E(Z)-4,7 anhydro-5-benzamido-6,8-di-O-benzoyl-2,3,5-trideoxy-d-allo-oct-2-enoate have been synthesized like intermediates and isolated as single crystals during the synthesis of pyrazole-related C nucleosides as synthetic product with cytotoxic activity.1 Crystal structures of E(Z) isomers were determined by X-ray analysis. E isomer crystallizes in the triclinic crystal system, space group P1, a = 5.319(1) Å, b = 10.758(2) Å, c = 12.229(2) Å, α = 72.38(2)∘, β = 89.97(2)∘, γ = 87.07(2)∘, Dx = 1.320 Mgm−3 and Z isomer in the orthorhombic crystal system, space group P212121, a = 5.1297(13) Å, b = 19.667(5) Å, c = 25.871(6) Å, Dx = 1.348 Mgm−3. The molecular structure was solved by direct method on the basis of 2609 and 2727 unique reflections recorded at the temperature 293 K (E-isomer) and 173 K (Z-isomer) up to the final R-factor 0.0378 and 0.0435, respectively. C–H⋅sO contact networks were analyzed and the correlation established between the existence of the weak C–H⋅sO hydrogen bonds and the melting point of the single crystals. 相似文献
40.
Ivana Antol Mario Barbatti Mirjana Eckert-Maksić Hans Lischka 《Monatshefte für Chemie / Chemical Monthly》2008,139(4):319-328
The properties of formamide, its protonated form and interaction complexes with lithium and sodium cations were studied in electronically excited singlet states by means of high-level multireference ab initio methods. The vertical excitation energies show a marked influence on protonation with particular large effects found for the O-protonated form as compared to neutral formamide. Complexation with Li+ and Na+ leads to a pronounced shift of the nO–π* state to higher energies while the π–π* state moves in opposite direction. Geometry optimizations in the lowest excited singlet show strong geometrical effects leading to pyramidalization at the N and C atoms. The photodynamical simulations performed for formamide in the first excited singlet state show that the main primary deactivation path is CN dissociation with a lifetime of about 420?fs. 相似文献