2022, Journal of Molecular Structure Citation Excerpt : These effects not likely to occur at levels are normally found in the environment, so the hydrogen bonded species shows pronounced variations in the band intensity and shape, frequency position of the band maxima. Hydroxyl has OH stretching vi...
The electronic structure, structural stability, mechanical, phonon, and optical properties of Zr2GaC and Hf2GaC MAX phases have been investigated under high pressure using first-principles calculations. Formation enthalpy of competing phases, elastic constants, and phonon calculations revealed that both co...
Two different polymorphs of the metal nitride halides M N X ( M = Ti, Zr, Hf; X = Cl, Br, I) are known to crystallize in layered structures. The two crystal structures differ in the way ∞ 2 { X [ M 2 N 2 ] X } slabs are stacked along the c -axes. Metal
Transition rates from an energy minimum across a saddle point are determined by the height of the energy barrier and the shape of the energy surface ... Andrew,J.,Newell - 《Geochemistry Geophysics Geosystems》 被引量: 29发表: 2006年
selectivity: approximately 3 kHz bandwidth, shape factor (−60 dB to −6 dB) 2:1; linearity: 3rd-order intercept point, 20 kHz spacing, +10 dBm; true average measuring capability within 4 s; timing accuracy within the receiver system should be maintained within 1 s. ...
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朝代/国别:清 创建时间:光绪3年1877 版本:刻本 作品信息 :20册,27cm监修:陈开濬 参订:章瑞应