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91.
Das MC Xu H Wang Z Srinivas G Zhou W Yue YF Nesterov VN Qian G Chen B 《Chemical communications (Cambridge, England)》2011,47(42):11715-11717
A doubly interpenetrated semiconducting MOF Zn(4)O(2,6-NDC)(3)(DMF)(1.5)(H(2)O)(0.5)·4DMF·7.5H(2)O (UTSA-38) of a cubic net has been constructed, which exhibits photocatalytic activity for the degradation of methyl orange in aqueous solution. 相似文献
92.
The reaction of aryl-substituted propargyl alcohols possessing o-nitro and o-alkylidene groups with (RO)(2)PCl afford novel phosphono(tetrahydro)dibenzazepines, N-hydroxyindolinones or polycyclics (including one with three fused four-membered rings). 相似文献
93.
94.
Archiv der Mathematik - We investigate the class number one problem for a parametric family of real quadratic fields of the form $$\mathbb {Q}( \sqrt{m^2+4r})$$ for certain positive integers m and r. 相似文献
95.
Maruthi Janaki Ram Reddy V. Venkat Reddy U. Srinivas M. Janaki Ram Reddy V. Jayathirtha Rao 《Journal of Chemical Sciences》2002,114(6):603-609
Naphthyldiene derivatives,1-4, carrying electron-donating groups at one end and electron-withdrawing groups at the other, were synthesized to study the
photoisomerization process. All the compounds showed efficient photoisomerization upon direct excitation leading to the formation
of 4-Z isomer with high selectivity. Triplet sensitization studies indicated inefficientE-Z isomerization process. Room temperature fluorescence of1 and2 displayed fine structure in hexane solvent and the same was replaced by broad or structureless fluorescence in acetonitrile
and methanol solvents. A mechanism involving a polarized or charge transfer singlet excited state is proposed for the observed
photoisomerization in these naphthyldiene derivatives. 相似文献
96.
In this paper, we propose the implementation of waveguide-coupled ring resonators in photonic crystal integrated circuits. Using two-dimensional finite difference time domain (2D FDTD) method, we study the spectral characteristics of a waveguide-coupled ring carved in two-dimensional photonic crystal of square lattice (2D SLPC) and based on the results, we suitably modify the structure geometry to establish its performance as a ring resonator. We further investigate the effects of ring dimension and crystal parameters on the resonance properties of the ring resonator. 相似文献
97.
98.
99.
M D Srinivas 《Pramana》1982,19(2):159-173
This paper is devoted to a study of some of the basic conditions which have to be satisfied by a hidden variable theory in
order that it can reproduce the quantum mechanical probabilities. Of course one such condition, which emerges from the important
theorem of Bell, is that a hidden variable theory has to be non-local. It is shown that a hidden variable theory is also incompatible
with the conventional interpretation of mixed states and the mixing operation in quantum theory. It is therefore concluded
that, apart from being non-local, a hidden variable theory would also necessarily violate the usual assumption of quantum
theory that the density operator provides an adequate characterization of any ensemble of systems, pure or mixed. 相似文献
100.
G. Naga Srinivas Hotha Srinivas Eluvathingal D. Jemmis 《Journal of Chemical Sciences》1994,106(2):169-181
The reactivity centres of Ti8C12, for the three structures suggested in conformity with experimental observations, are studied by extended Huckel theory,
The C2 unit can complex with transition metal fragments such as Pt(PH3)2 with the unusual net result of transferring two electrons to Ti8C12. The metal centre, Ti can accommodate extra two-electron donors like CO. Model systems are used to explain the carbon and
metal environment in Ti8C12. 相似文献