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981.
Various 3‐[1‐phenyl‐4‐(2‐substituted‐5‐oxo‐oxazol‐4‐ylidenemethyl) pyrazol‐3‐yl] coumarins 4a‐f ; 3‐[1‐phenyl‐4‐(2,6‐dimethyl‐3,5‐disubstituted‐1,4‐dihydropyridin‐4‐yl) pyrazol‐3‐yl] coumarins 5a‐f and 3‐[1‐phenyl‐4‐(6‐methyl‐5‐substituted‐2‐oxo‐1,2,3,4‐tetrahydropyrimidin‐4‐yl) pyrazol‐3‐yl] coumarins 6a‐f have been synthesized utilizing Erlenmyer‐Plochl reaction, Hantzsch reaction and Biginelli reaction respectively using 3‐(1‐phenyl‐4‐formyl‐pyrazol‐3‐yl) coumarins 3a‐c as a starting material. 相似文献
982.
A solution of the Einstein-Maxwell equations corresponding to source-free electromagnetic field is obtained. The solution
is algebraically special. A particular case of the solution is considered which includes Brill’s solution. The details regarding
the solution are also discussed. 相似文献
983.
Donglu Shi Monica Blank Mita Patel David G. Hinks A.W. Mitchell K. Vandervoort H. Claus 《Physica C: Superconductivity and its Applications》1988,156(5)
Superconducting transition temperatures near 110 K are observed in the Bi-Sr-Ca-Cu-O system with the nominal compositions Bi2Sr2Ca3Cu4Ox and Bi2Sr2Ca4Cu5Ox. Electrical resistivity, magnetization, and X-ray diffraction data are reported. Also discussed is the effect of heat treatment on the thermodynamic behavior of the superconducting phases in the rapidly quenched glasses. 相似文献
984.
M.B. Patel 《Solid State Communications》1985,53(4):431-435
Temperature evolution of the infrared spectrum of the title compound confirms the phase transition temperatures 223, 311 and 355 K reported earlier and suggests a new phase transition at 180 K. From the spectral evidence, the transitions below the room temperature (~300 K) are attributed to tumbling motion of the metal aquo-complex, while those above the room temperature are attributed to reorientational motion of the water molecule. The space group in low temperature phases is suggested to be C2s. 相似文献
985.
Mitra A Ghosh A Das R Patel A Kumar A 《Journal of magnetic resonance (San Diego, Calif. : 1997)》2005,177(2):285-298
Quantum adiabatic algorithm is a method of solving computational problems by evolving the ground state of a slowly varying Hamiltonian. The technique uses evolution of the ground state of a slowly varying Hamiltonian to reach the required output state. In some cases, such as the adiabatic versions of Grover's search algorithm and Deutsch-Jozsa algorithm, applying the global adiabatic evolution yields a complexity similar to their classical algorithms. However, using the local adiabatic evolution, the algorithms given by J. Roland and N.J. Cerf for Grover's search [J. Roland, N.J. Cerf, Quantum search by local adiabatic evolution, Phys. Rev. A 65 (2002) 042308] and by Saurya Das, Randy Kobes, and Gabor Kunstatter for the Deutsch-Jozsa algorithm [S. Das, R. Kobes, G. Kunstatter, Adiabatic quantum computation and Deutsh's algorithm, Phys. Rev. A 65 (2002) 062301], yield a complexity of order N (where N=2(n) and n is the number of qubits). In this paper, we report the experimental implementation of these local adiabatic evolution algorithms on a 2-qubit quantum information processor, by Nuclear Magnetic Resonance. 相似文献
986.
We investigate the effect of frequency mismatch in two indirectly coupled Rössler oscillators and Hindmarsh–Rose neuron model systems. While identical systems show in-phase or out-of-phase synchronization states when coupled through a dynamic environment, mismatch in the internal frequencies of the systems drives them to a fixed point state, i.e., amplitude death. There is a region in the parameter space of the frequency mismatch and coupling strength where system shows amplitude death. The numerical results of Rössler system are also experimentally verified using piece-wise Rössler circuits. 相似文献
987.
988.
Kamil Reza K. Azahar Ali Md. Singh Manish Kumar Agrawal Ved Varun Biradar A. M. 《Mikrochimica acta》2017,184(6):1809-1816
Microchimica Acta - The authors describe a nanostructured hybrid platform for amperometic determination of the plasticizer bisphenol A (BPA). It consists of two dimensional sheets of reduced... 相似文献
989.
K. J. Patel G. G. Bhatt J. R. Ray Priya Suryavanshi C. J. Panchal 《Journal of Solid State Electrochemistry》2017,21(2):337-347
Electrochromic devices (ECDs) are currently attracting much interest in academic and industry for both research and their commercial applications because of their controllable transmission, absorption, and/or reflectance. This paper reviews the progress that has taken place from 1969 until the year 2015 with regard to all-solid-state inorganic ECD fabrication. The main aim of this review article is to provide an easy entrance to literature of all-inorganic solid-state ECD. 相似文献
990.
Waghadkar Yogesh Shinde Manish Ballal Reshma Rane Sunit Gosavi Suresh Chauhan Ratna 《Journal of Solid State Electrochemistry》2017,21(6):1797-1804
Journal of Solid State Electrochemistry - Hierarchically nano-structured ZnO microspheres have been synthesized solvothermally at variable reaction times (6, 12, 36, and 48 h) by using... 相似文献