pyra相关论文
Four new low-band-gap alternating copolymers(P-1, P-2, P-3 and P-4) based on electron-rich benzodithiophene and newly de......
Complex [Sr2(pdc)2(H2O)7]·H2O(1, H2 pdc=2,3-pyrazinedicarboxylic acid) has been synthesized and characterized by single......
New series of pyrazolo[1,5-α]pyrimidine derivatives 7a-i,11a-c and Schiff bases 13a-c were synthesized and screened for......
The crystallographical study of the newly found crystals of topaz was started by W. H. Wong and continued and completed......
A principal-agent relationship exists among creditors,shareholders and management,and information asymmetry among them l......
Structural Regularities of the Transition Metal Complexes Containing o-Benzenedithiol (H_2bdt)——Synt
Complex Fe_3(bdt)_3(PBu_3~n)_3 was synthesized in the presence of PBu_3~n and the structural regularities in a series o......
目的寻找新型磷酸二酯酶抑制剂,设计合成未见文献报道的吡唑并[4,3-d]嘧啶-7-酮类衍生物.方法合成了8个新的衍生物,结构经IR、1H-N......
以1′-(4-氯-2-氟-5-甲氧基苯基)-4′,4′,4′-三氟-1,3-丁二酮为原料,通过闭环、甲基化、溴化、脱甲基、烷基化反应,合成了一系列......
提出一种能够有效抑制噪音的模糊C均值聚类算法,通过构造基于灰度-中值的空间信息和塔形结构减少噪音对聚类中心的影响,塔形结构的......
目的探讨磁共振扩散张量成像（diffusion tensor imaging,DTI）对肌萎缩侧索硬化（amyotrophic lateral sclerosis,ALS）锥体束变性可能顺......
设计合成了5个未见文献报道的N-吡唑酰基苯并咪唑类化合物，其结构经元素分析、HNMR、IR确证。......
在多Agent基础上提出了一种塔式网络故障检测结构，克服了集中式网络故障检测系统存在的诸多缺陷。这种基于最优分组原则建构的塔式......
Molecular Modeling and Synthesis of New Heterocyclic Compounds Containing Pyrazole as Anticancer Dru
Several modifications in CA-4 were reported in literature for the development of various tubulin inhibitors. In our stud......
利用电磁仿真软件模拟了不同结构角锥喇叭天线的增益特性,选择了增益较低的角锥喇叭天线作为X波段高功率微波测量天线。同时,对角......
