In the fabrication of surface relief gratings (SRGs) on azobenzene polymer films with a zeroth-order suppressed diffraction phase mask,it is found that the SRGs
多花黑麦草(Loliummultiflorum)是县有世界栽培意义的一年生刈割型优良禾草。饲草质地柔软、营养丰富、适口性好,家畜家禽喜食。过去我国多引种于长江流域或较温暖多雨地区
We demonstrate n-type organic thin film transistors (OTFTs) employing copper hexadecafluorophthalocyanine (CuPcF16 ) as the active layer and para-hexaphenyl (p-
土壤PH对作物发育的影响曾作过广泛研究。业已证明,对酸性土壤施钙(如石灰石)可促进西瓜生产。但是涉及到土壤酸性对西瓜组织浓度影响的研究,作物中潜在Mn的积累还不曾提出
In experiment,the generation of 14-tone stable carriers with recirculating frequency shifter is realized.Some factors that impact the performance of the carrier
Based on the master equation describing the particles jump among barriers,the expressions of current,efficiency and power output of the heat engine are derived