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121.
Two recent deformation schemes for quantum field theories on two-dimensional Minkowski space, making use of deformed field operators and Longo–Witten endomorphisms, respectively, are shown to be equivalent. 相似文献
122.
Shigeo Tanimoto Tatuo Oida Kouhel Hatanaka Toyonari Sugimoto 《Tetrahedron letters》1981,22(7):655-658
Generation of 1,2-ethanbis(trithiocarbonic acid) dianion from 2,2′-[1,2-ethanediylbis (thio)]bis-1,3-dithiolane and its reaction with alkyl halldes were investigated. 相似文献
123.
It was found that the reaction of five-membered cyclic trithiocarbonates with n-butyllithium in tetrahydrofuran is applicable to the preparation of unsymnetrical linear trithiocarbonates and further to the interconversion of cis- and trans-olefins. 相似文献
124.
125.
Toshiko Tanimoto Yuko Kishimoto Akiko Ikuta Yuki Nishi Keishiro Miyake 《Journal of inclusion phenomena and macrocyclic chemistry》2002,44(1-4):297-302
Branched -cyclodextrins (-CDs) having manno-oligosaccharide side chains were investigated. Three kinds of monobranched -CDs and five kinds of dibranched -CDs were chemically synthesized using the trichloroacetimidate method. Their structures were analyzed by HPLC, MS, and NMR spectroscopies. The specific interaction between those compounds and mannose-binding lectins (Concanavalin A and Pisum sativum agglutinin) was investigated by inhibition tests of hemagglutinating activity and by using an optical biosensor of the IAsys apparatus with a resonant mirror detector. The results showed that all branched -CDs interactedwith lectins. The binding affinity was 61,64-(Man3)2- 61,64-(Man2)2- > 61,64-(Man4)2--CD when the derivatives were compared on the basis of side chain length and 61,63- 61,64- > 61,62-(Man2)2--CD when compared on the basis of side chain position. 相似文献
126.
Mitsutoshi Tanimoto V. Almond S.W. Charles J.N. Macdonald N.L. Owen 《Journal of Molecular Spectroscopy》1979,78(1):95-105
Rotational spectra of vinyl mercaptan (ethenethiol) CH2CHSH and its isotopic modification CH2CHSD have been studied by microwave spectroscpy. The molecule has been found to exist in two rotameric forms, syn and anti, associated with different orientations of the SH bond with respect to the vinyl framework. In this paper results are reported for the more stable syn form which is shown to be planar with ground state rotational constants A = 49 815.28(6) MHz, B = 5835.716(14) MHz, C = 5222.081(11) MHz, DJ = 2.85(17) kHz, DJK = ?33.22(2.08) kHz, and δJ = 0.425(65) kHz. Spectra have also been observed for the first and second excited states of the SH torsional vibration and the first excited state of the CCS angle bending mode. The dipole moment of the syn rotamer is μa = 0.813(1), μb = 0.376(4), and μtotal = 0.896(3) D. 相似文献
127.
H. Tanimoto S. Nasu F. E. Fujita I. Sakamoto A. Tanoue 《Hyperfine Interactions》1988,42(1-4):1009-1012
Conversion electron Mössbauer spectroscopy (CEMS) was applied to study the behaviour of119Sn atoms implanted into Ni at the accelerating energy of 100–400KeV and doses of 5×1015–5×1016 ions/cm2 at room temperature. All CEMS spectra were measured at room temperature and successfully analyzed by two components. The energy and dose dependence of CEMS spectra were well explained by the depth distribution of119Sn atoms. 相似文献
128.
Toshiaki Okabayashi Emi Yamazaki Kazuhiro Tsukamoto Mitsutoshi Tanimoto 《Journal of Molecular Spectroscopy》2003,220(2):155-161
The millimeter- and submillimeter-wave spectra of AuCl and AuBr in the X1Σ+ states were observed by employing a source-modulated microwave spectrometer. The AuCl and AuBr molecules were, respectively, generated in a free space cell by a d.c. glow discharge in Cl2 and Br2 with Ar. The gold atoms were supplied by the sputtering reaction from a gold sheet placed on the inner surface of a stainless-steel cathode. Rotational transitions of , , , and in highly excited vibrational states as well as in the ground vibrational states were measured in the region between 189 and 314 GHz. The transition frequencies were analyzed by a least-squares method using a combined-isotopomer Dunham-type term energy expression. The potential constants of gold halides obtained were compared with those of copper and silver halides. 相似文献
129.
R. B. Morgunov V. L. Berdinski A. I. Dmitriev Y. Tanimoto 《Physics of the Solid State》2007,49(5):997-1003
The electron paramagnetic resonance spectra of a molecular magnet synthesized from [Mn12O12(MeCO2)16(H2O)4] high-spin clusters and tetramethyltetrathiafulvalene donor organic molecules are investigated. It is revealed that, in the
temperature range 5–7 K, there appears an additional signal against the background of the ferromagnetic resonance spectrum.
The additional signal consists of a large number of lines and has a resonance nature, because it is observed in the well-reproduced
narrow ranges of the constant magnetic field of the spectrometer (300–650 and 850–1300 Oe) at a frequency of 9.4152 GHz. The
appearance of the additional signal at a temperature of 5 K is attended by a multiple increase in the magnetic susceptibility
of the sample. There is a correlation between the spectral characteristics of the additional signal (such as the average amplitude,
the spectral power, etc.) and the parameters of the ferromagnetic resonance spectrum (the resonance field, the linewidth,
and the integrated intensity). The assumption is made that the additional signal is associated with the magnetic-field-induced
transitions between spin states of Mn12 high-spin clusters for different orientations of crystallites with respect to the external magnetic field.
Original Russian Text ? R.B. Morgunov, V.L. Berdinskiĭ, A.I. Dmitriev, Y. Tanimoto, 2007, published in Fizika Tverdogo Tela,
2007, Vol. 49, No. 5, pp. 945–950. 相似文献
130.
Mitsutoshi Tanimoto Koichi Yamada G. Winnewisser J.J. Christiansen 《Journal of Molecular Spectroscopy》1983,100(1):151-163
The CC stretching band ν2 of iodoacetylene has been studied by tunable laser spectroscopy in the range of 2037–2071 cm?1. The hot bands associated with the low-lying bending vibrations ν4 and ν5 were observed. For the Π-Π hot bands, the splitting caused l-type doubling was resolved for high J transitions. For the fundamental band the hyperfine splittings due to the 127I nuclear quadrupole moment were clearly observed for R(0) and P(1) transitions. Combination of these diode laser spectra with the microwave data allows precise determination of the constants in the ground and excited vibrational states. 相似文献