多个从方主从对策的仿射型诱导策略

讨论当主从对策中存在多个从方时,主方对多个从方的诱导策略的设计问题．给出了最优诱导策略和可诱导域的定义,研究了仿射型诱导策略的存在条件及解的结构形式,并探讨了当主方只具有对从方决策的部分观测时的诱导问题．     

不锈钢堆焊试件熔合区充氢前后的断裂韧性研究

研究了氢对不锈钢堆焊层熔合区的断裂韧性的影响作用。发现不锈钢堆焊层熔合区的断裂韧性随着充氢时间的增加而下降,结果表明,氢是引起加氢反应器不锈钢堆焊层剥离的主要因素。     

钢筋混凝土薄钢板组合剪力墙的弹性屈曲临界荷载

研究钢筋混凝土薄钢板剪力墙在侧向力作用下的弹性掘曲临界载荷计算问题,提出了相应的计算模型,导出了计算公式,并与相应实验结果比较,符合良好。     

Search for new antiphytovirucides

The lead compound of substituted 2-(4′-hydroxyphenyl)benzimidazoles were modified by phosphorylation sulfonation and carboxymethylation. The benzimidazoloamidophosphate (6) (7) have better activity against tobacco mosaic virus (TMV). The benzimidazolophenoxyacetic acid, phenoxysulfonic acid containing trifluoromethyl, and nitro group have 77%≈85% efficiency for wheat rust disease. Supported by the National Natural Science Foundation of China and National Laboratory of Elemento Organic Chemistry Nankai University Qu Fanqi: born in 1952, Associate professor     

Cloning and expression of the vp39 gene ofBombyx mori nuclear polyhedrosis virus inE. coli

The nuclear capsid protein gene (vp39) ofBombyx mori nuclear polyhedrosis virus (BmNPV) was amplified successfully by PCR technique and inserted into pGEM 3zf(+). The 5′ and 3′ terminal area of the amplified vp39 gene were sequenced with silver-staining dideoxy method. Bmvp39 gene was sub-cloned into the expression vector pRSET-A, and transformed intoE. coli BL21. This gene was highly expressed by IPTG induction. SDS-PAGE analysis showed that the expressed protein is about 38 kd, and the expressed amount reached maxium in 4 h with IPTG induction. Supported by the National Natural science Foundation of China and the Doctoral Foundation of Edn carto Committee Liu Deli: born in 1954, Doctoral Candidate from Huazhong Normal University To whom correspondence should be addressed: (027-7882712-2938)     

花生油磷酸酯加脂剂的研制及应用

本文报道了以花生油为原料,经酯交换,磷酸化制备新型皮革加脂剂,并研究了其单一及复配后的加脂性能。     

企业对环境应变的和谐性分析

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辽宁沈北煤田早第三纪植物群的发现

辽宁沈北煤田位于沈阳市北郊３０余ｋｍ处,为第四纪冲积层广泛覆盖的平地,基岩出露极少．据辽宁省煤矿管理局地质勘探局的普查,煤田地层由老至新依次为：前震旦系、震旦系、侏罗系、白垩系、下第三系、上第三系和第四系．沈北煤田的煤层主要产于下第三系,下第三系自上...     

核酶的化学合成及其对烟草花叶病毒RNA片段的体外剪切

设计并用化学方法合成了针对烟草花叶病毒ＲＮＡ的核酶ＲＺ－１及ＲＺ－１小型化的核酶ＲＺ－２以及它们的底物ＲＮＡ片段Ｓｂ,研究了两种核酶对底物Ｓｂ的体外催化活性,并把核酶Ｒｚ－１与生物合成的相同组成的核酶Ｒｚ－１’进行了比较试验。     

氩离子腔内倍频紫外连续激光器

本文从讨论培频效率入手,分析了影响倍频效率的原因,给出BBO晶体氩离子腔内培频紫外激光器的设计方案,制作了激光器,并得到了紫外激光输出。