SQL注入攻击原理及预防

从2007年底至今,SQL注入式攻击成为黑客犯罪的主要手段,利用Google搜索引擎来确定注入点,并插入指向恶意内容的链接,其造成的威胁是巨大的,通过了解其原理,建立有效的安全体系来防范SQL注入式攻击。     

WinCE环境下SNTP协议的研究与实现

以工业控制领域中的SNTP时间同步协议为基础,对其工作过程及原理进行深入剖析,着重探讨了如何在Windows CE环境下实现时间同步,并给出相应的实现方案。最后给出了Windows CE环境下的SNTP协议栈运行结果。     

消除485总线噪声影响的应用一例

就一实例说明如何通过软件设计的方法来消除系统中存在的各种噪声,保证系统的正常运行。     

用多媒体软件模拟匀加速直线运动

用多媒体软件Ｄｉｒｅｃｔｏｒ６．０来模拟物理教学中的匀加速直线运动。     

Activation effect of halides on chromium electrodeposition from chromic acid baths

The current efficiency of chromium electrodeposition and cathodic polarization curves were determined in halide-chromic acid-sulphuric acid systems. The composition of the cathodic films formed was determined by XPS and AES. The results show that sulphate is an effective catalyst for the deposition of bright chromium and that the current efficiency of the chromium deposition increases remarkably when F^– and Cl^– are added to the bath, and also that F^– and Cl^– participate in the formation of the films. The depth profile curves of the film show that halide is distributed in the inner layer of the film, and SO₄ ^2– in the surface layer. It is deduced that F^– and Cl^– form a bridged complex, [C^III-X^–-Cr^III], in which electron transition is easily carried out.     

Neurocomputing with time delay analysis for solving convexquadratic programming problems

This paper presents a neural-network computational scheme with time-delay consideration for solving convex quadratic programming problems. Based on some known results, a delay margin is explicitly determined for the stability of the neural dynamics, under which the states of the neural network does not oscillate. The configuration of the proposed neural network is provided. Operational characteristics of the neural network are demonstrated via numerical examples.     

后张法预应力施工常见问题及处理措施探讨

无论是公路、铁路还是市政工程,后张法预应力现浇梁均为一种较为普遍的现浇梁施工工艺。对后张法预应力混凝土箱梁施工从预应力施工常见问题及处理措施方面进行了探讨,对于提高现浇梁后张法施工质量具有积极的借鉴意义。     

少数民族流动人口研究综述——以2008年以来CNKI数据库分析为例

近年来关于少数民族流动人口研究颇多,侧重点集中在少数民族流动人口现状、特点的总体分析、城市适应问题、子女教育问题、民族差异引发的社会问题、社会保障与权益保护问题、对城市民族关系的影响等方面。总结、归纳、分析、概括以上多方面的研究成果,对研究存在的问题及空白点加以剖析,以求从全局的角度关注此研究。     

中国宪法文化缺失的反思

由于多方面的原因,中国长期不具备实施宪政的基础,而宪政秩序的建成必须有相应的文化加以支撑。从宪法文化的概念入手,结合宪法文化在我国缺失的现状,分析了我国宪法文化缺失的深层原因,在此基础上立足中国的实际情况,论证了培育中国宪法文化的途径。