选用混合介质优化介质和控制受激布里渊散射特性的研究

本文提出了选用混合介质优化介质和控制其SBS特性的方案.分析了全氟碳化合物系列液体介质具有良好互溶性的缘故,数值模拟了HT-230/FC-72混合介质的增益系数、声子寿命和布里渊频移随混合比的变化曲线.在Countinuum Nd:YAG种子注入激光系统中测定了HT-230/FC-72混合介质的吸收系数和光学击穿阈值随混合比的变化,并实验研究了混合介质的能量反射率和Stokes光脉冲波形随混合比的变化.通过选用混合介质不仅优化介质,而且在一定范围之内可控制其SBS特性. 关键词： 受激布里渊散射 混合介质 优化介质 控制SBS特性     

Mbius不变的Q_p空间:结果、技巧和问题(英文)

本文是关于Mbius不变的Q_p函数空间方面的综述文章,给出了近10年来有关Q_p函数空间的若干结果、技巧和问题.     

Characterizations of α-Bloch spaces on the unit ball

We obtain a characterization of the α-Bloch space for any α>0 in the unit ball of Cn in terms of |f(z)−f(w)|/|z−w|. Moreover, a new characterization for the Bloch space is given.     

Characterizations of spaces in the unit ball of

Let B denote the unit ball of . For 0<p<∞, the holomorphic function spaces Q_p and Q_p,0 on the unit ball of are defined as

and

In this paper, we give some derivative-free, mixture and oscillation characterizations for Q_p and Q_p,0 spaces in the unit ball of .     

混合介质的SBS参数随混合比变化的研究

从混合介质的折射率、黏度、密度和声速等物理量随混合比的变化关系入手,推导出了混合介质的布里渊线宽、声子寿命和增益系数等受激布里渊散射(SBS)参数随混合比的变化关系.数值模拟了HT-70/FC-72混合介质的布里渊线宽、声子寿命和增益系数随FC-72体积分数的变化关系,并测定了该混合介质的吸收系数和光学击穿阈值随FC-72体积分数的变化关系.结果表明,HT-70/FC-72混合介质的SBS参数随FC-72体积分数单调变化,不出现极值现象.混合介质的选用不仅增加了SBS介质的种类,而且能够满足SBS系统对不 关键词： 受激布里渊散射 混合介质 SBS参数     

BMO亚纯函数,Normal函数和Carleson测度

In this paper, we introduce H_N measure and H_B measure . A criterion for N (f∈B) is obtained in terms of the H_N measure (H_B measure) . We also study Carleson measure and BMOM . Several equivalent conditions for a function to be in BMOM or VMOM are proved .     

Two new two‐dimensional coordination polymers based on isophthalate and a flexible N‐donor ligand containing benzimidazole and pyridine rings: synthesis,crystal structures and a solid‐state UV–Vis study

In coordination chemistry and crystal engineering, many factors influence the construction of coordination polymers and the final frameworks depend greatly on the organic ligands used. N‐Donor ligands with diverse coordination modes and conformations have been employed to assemble metal–organic frameworks. Carboxylic acid ligands can deprotonate completely or partially when bonding to metal ions and can also act as donors or acceptors of hydrogen bonds and are thus good candidates for the construction of supramolecular architectures. Two new transition metal complexes, namely poly[diaqua(μ₄‐1,4‐bis{[1‐(pyridin‐3‐ylmethyl)‐1H‐benz[d]imidazol‐2‐yl]methoxy}benzene)bis(μ₂‐isophthalato)dicobalt(II)], [Co(C₈H₄O₄)(C₃₄H₂₈N₆O₂)_0.5(H₂O)]_n, (1), and poly[diaqua(μ₄‐1,4‐bis{[1‐(pyridin‐3‐ylmethyl)‐1H‐benz[d]imidazol‐2‐yl]methoxy}benzene)bis(μ₂‐isophthalato)dicadmium(II)], [Cd(C₈H₄O₄)(C₃₄H₂₈N₆O₂)_0.5(H₂O)]_n, have been constructed using a symmetric N‐donor ligand and a carboxylate ligand under hydrothermal conditions. X‐ray crystallographic studies reveal that complexes (1) and (2) are isostructural, both of them exhibiting three‐dimensional supramolecular architectures built by hydrogen bonds in which the coordinated water molecules serve as donors, while the O atoms of the carboxylate groups act as acceptors. Furthermore, (1) and (2) have been characterized by elemental, IR spectroscopic, powder X‐ray diffraction (PXRD) and thermogravimetric analyses. The UV–Vis absorption spectrum of complex (1) has also been investigated.     

ON UNIVALENT BLOCH FUNCTIONS

Let A = {z: lzl < 1} be the unit disk of complex plane C. For a 6 A, let W.(z) = isbe the M5biu8 transfOrlnation of A and let g(z, a) = log Ieel be the Green's functiou on Awith logarithlllic sillgularity at a E a. FOr 0 < p < oo, tl1e space Q. consists of all fuuctiolls fa11alytic il1 A for w11ichsup / I If'(z)l'(g(z, a))P dA(z) < oo, (1)aea j ja If'(z)l'(g(z, a))P dA(z) < oo, (1)wllere dA(z) is tlle Euclidcan area eIelllent o11 A.Q.-spaces have been i11vestigated by n1any authors (…