安全支付网关技术研究与系统实现

安全支付网关是银行与internet之间的安全枢纽 ,是电子商务系统中最重要的组成部分 ,它涉及密码学、信息系统安全和风险管理等学科。在简要介绍电子商务系统安全体系结构的基础上 ,研究了安全支付网关中的安全电子交易 (SET)协议和共钥基础设施PKI等关键技术 ,以及数字签名、数字信封和数字双签名等相关的基础技术 ,并在此基础上完成了“WT0 37安全支付网关系统”的系统实现     

小球在粘滞液体中运动情况的探讨

通过对小球在粘滞液体中运动情况的探讨,为设计制作和改进落球式粘滞系数实验仪提供一定的理论依据.     

1,3,4—恶二唑的酰基硫脲衍生物的合成

从邻氯苯酚出发合成邻氯苯氧乙酰异硫氯氰酸酯，分别与５种２－氨基－５－芳基－１，３，４－恶二反应得到１，３，４－恶二唑的邻氯苯氧乙酰基硫脲衍生物，用ＩＲ，＾１ＨＮＭＲ，元素分析等对它们的结构进行了确证，并分析归纳合成该目标产物的最佳合成条件。     

结构光测量中的定标

分析了ＤＬＴ定标模型的原理和方法，根据所涉及的应用场合和界定的条件，对ＤＬＴ模型进行了简化，由此只需进行二维测量和计算，就能准确有效地完成三维定标．对定标误差进行了理论分析和实验，提出了误差纠正模型及其相应算法，保证了系统的扫描精度．实验表明：提出的定标算法达到像素级精度．     

Low dipole moment large β electrooptic chromophores based on exocyclic double bond conjugated bridge

Novel low dipole moment (μ) and large first hyperpolarizability (β) electrooptic chromophores have been designed based on the special characteristic of reversed dipole moment in the excited state of exocyclic double bond (ECDB) conjugated bridge by the optimization of the substituted method, and their electronic and second-order nonlinear optical properties have been theoretically investigated by employing the AM1/FF and ZINDO/S-CI approaches. By extending the conjugation length and optimizing the donor/acceptor strength, the oscillator strength of the excited transition that contributes to the molecular nonlinearity can be further enhanced. The designed chromophores possess a larger figure of merit (FOM) than that of 4-N,N-dimethylamino-4′-nitrostilbene (DANS), and lower (<5 D) ground state dipole moment.     

竹林的主要病虫害及其防治措施

介绍了竹林常见的病害、虫害及其防治措施。     

Conformational analysis on anti-HIV-1 peptide T22([Tyr5,12,Lys7]-polyphemusinⅡ )

The conformational scan of anti-HIV peptide T22 ([Tyrsup>5,12, Lys⁷]-polyphemusinⅡ) backbone on a deformed potential energy surface (PES) was performed using the potential smoothing searching (PSS) protocol. All located minima were then transferred to the original PES using undeformed optimized potentials for liquid simulations (OPLS) potential function, and minimized by multi-conformer minimization (MCM). For solution-phase calculations, the GB/SA continuum model for water was used. This application of PSS integrated with MCM is proved a feasible method for solving the multiple-minimum problem in the conformational analysis of flexible molecules with cyclic structure.     

确定影响工程质量主次因素的层次分析法

结合分析在建设施工中造成混凝土强度不足的原因，叙述了用层次分析法确定影响建设工程质量或造成工程隐患的主次因素，为在建设监理中，确保工程项目建设质量的最优控制提供了一种新的科学定量分析方法。     

W^＊—PCP与（W^＊—W）PCP的关系

本文证明了下面２个结果：（１）Ｗ＾＊－紧集Ｋ具有Ｗ＾＊－ＰＣＰ当且仅当Ｋ具有ＰＣＰ和Ｗ＾＊－稠密（Ｗ＾＊－Ｗ）ＰＣ点集；（２）Ｗ＾＊－紧集Ｋ具有Ｗ＾＊－ＰＣＰ当且仅当９Ｗ＾＊－Ｗ）ＰＣ（Ｋ）含有Ｋ的一个Ｗ＾＊－稠密Ｇδ子集。     

化学反应设计成可逆电池方法探讨

提出了各类可逆电极反应通式和电极图式，并针对不同化学反应，研讨了如何准确快捷地将指定化学反应设计成可逆电池．