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851.
Edward P. Osipov 《Reports on Mathematical Physics》1984,20(1):111-116
The ?dν(λ):expλ?:n (without counterterms) quantum field theory is considered. Here ν(·) is a finite positive measure.Let n ? 3, or n = 2 and supp. Under these conditions the theory ?dν(λ):expλ?:n (without counterterms)converges to the free-field theory when the cut- offs are removed. 相似文献
852.
V.A. Kapitanov K.Yu. Osipov A.E. Protasevich Yu.N. Ponomarev 《Journal of Quantitative Spectroscopy & Radiative Transfer》2012,113(16):1985-1992
A high-sensitive two-channel photo-acoustic (PA) spectrometer with a near infrared diode laser was used to make precise measurements of N2-broadened methane spectra in the R9 multiplet of 2ν3 band. For the accurate retrieval of spectroscopic line parameters (intensities, positions at zero pressure, pressure-shifting and -broadening, collisional narrowing and line mixing coefficients) from the methane PA spectra, a program based on a multispectrum fitting procedure has been used. The multispectrum least squares fitting procedure is based on a relatively simple line profile model and on the linear pressure dependences of the line profile parameters. The line parameters were determined for 11 lines of the methane 2ν3 R9 multiplet. The results have been compared with other available data. 相似文献
853.
The problem of conservation of magnitudes is considered for a vortex in a relaxing compressible medium. Heat release due to
the relaxation of a nonequilibrium medium leads to the propagation of compression waves, which remove material. Traditional
integrals of motion are inapplicable in this case. We pro-pose the concept of integral quantity, which is conserved with an
arbitrary degree of accuracy despite the fact that waves cross the boundary of the integration domain. Based on this concept,
a broad class of conservation laws is derived for axisymmetric disturbances of columnar vortices, including conservation of
the circulation and total angular momentum of the vortex. For nonaxisymmetric disturbances, it is shown that the total angular
momentum and properly defined energy integral are conserved. Numerical verification of the derived conservation laws is performed
and the perspectives for using these conservation laws in numerical simulations are discussed. 相似文献
854.
V. L. Gurtovoi S. V. Dubonos A. V. Nikulov N. N. Osipov V. A. Tulin 《Journal of Experimental and Theoretical Physics》2007,105(6):1157-1173
The obtained periodic magnetic-field dependences I c+(Φ/Φ0) and I c?(Φ/Φ0) of the critical current measured in opposite directions on asymmetric superconducting aluminum rings has made it possible to explain previously observed quantum oscillations of dc voltage as a result of alternating current rectification. It was found that a higher rectification efficiency of both single rings and ring systems is caused by hysteresis of the current-voltage characteristics. The asymmetry of current-voltage characteristics providing the rectification effect is due to the relative shifts of the magnetic dependences I c?(Φ/Φ0) = I c+(Φ/Φ0 + Δ?) of the critical current measured in opposite directions. This shift means that the position of I c+(Φ/Φ0) and I c?(Φ/Φ0) minima does not correspond to n + 0.5 magnetic flux Φ quanta, which is in direct contradiction to measured Little-Parks resistance oscillations. Despite this contradiction, the amplitude I c, an(Φ/Φ0) = I c+(Φ/Φ0) ? I c?(Φ/Φ0) of critical current anisotropy oscillations and its variations with temperature correspond to the expected amplitude of persistent current oscillations and its variations with temperature. 相似文献
855.
856.
I. V. Aleksandrova E. R. Koresheva O. N. Krokhin I. E. Osipov 《Physics of Atomic Nuclei》2016,79(7):1210-1232
In inertial fusion energy research, considerable attention has recently been focused on low-cost fabrication of a large number of targets by developing a specialized layering module of repeatable operation. The targets must be free-standing, or unmounted. Therefore, the development of a target factory for inertial confinement fusion (ICF) is based on methods that can ensure a cost-effective target production with high repeatability. Minimization of the amount of tritium (i.e., minimization of time and space at all production stages) is a necessary condition as well. Additionally, the cryogenic hydrogen fuel inside the targets must have a structure (ultrafine layers—the grain size should be scaled back to the nanometer range) that supports the fuel layer survivability under target injection and transport through the reactor chamber. To meet the above requirements, significant progress has been made at the Lebedev Physical Institute (LPI) in the technology developed on the basis of rapid fuel layering inside moving free-standing targets (FST), also referred to as the FST layering method. Owing to the research carried out at LPI, unique experience has been gained in the development of the FST-layering module for target fabrication with an ultrafine fuel layer, including a reactor- scale target design. This experience can be used for the development of the next-generation FST-layering module for construction of a prototype of a target factory for power laser facilities and inertial fusion power plants. 相似文献
857.
V. V. Kazmiruk I. G. Kurganov N. N. Osipov A. A. Podkopaev T. N. Savitskaya 《Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques》2016,10(5):887-891
We present the results of studying secondary-emission signal formation in a scanning electron microscope; the signal is generated by the surface microrelief under an accelerating voltage of 0.3–3 kW with the detection of all secondary electrons. 相似文献
858.
859.
In dissipationless linear lattices, spatial disorder or quasiperiodic modulations in on-site potentials induce localization of the eigenstates and block the spreading of wave packets. Quasiperiodic inhomogeneities allow for the metal–insulator transition at a finite modulation amplitude already in one dimension. We go beyond the dissipationless limit and consider nonlinear quasi-periodic arrays that are additionally subjected to dissipative losses and energy pumping. We find finite excitation thresholds for oscillatory phases in both metallic and insulating regimes. In contrast to disordered arrays, the transition in the metallic and weakly insulating regimes display features of the second order phase transition accompanied by a large-scale cluster synchronization. In the limit of strong localization, we find the existence of globally stable asymptotic states consisting of several localized modes. These localization attractors and chaotic synchronization effects can be potentially implemented with polariton condensate lattices and cavity-QED arrays. 相似文献
860.