用电化学方法研究一些分子对碳钢的缓蚀性

本文利用电化学方法测定一些有机分子的特征基团及结构在酸性腐蚀介质(0．1％)H2S 5％HCI)中对碳钢的缓蚀作用，研究分子中特征基团及结构对缓蚀性的影响，分析分子的微观结构与宏观缓蚀作用之间的相互关系，为进一步合成高教缓蚀荆提供一些理论依据．     

两个单核镉配合物Cd(2-SC5 H4 NH)2I2和Cd(2-SC5 H3 NH-3-CH3)2I2 的合成与晶体结构

以2－巯基吡啶及它的衍生物3－甲基－2－巯基吡啶为配体，合成了两个结构类似的单核镉配合物Cd(2-SC5H4NH)2I2和Cd(2-SC5H3NH-3-CH3)2I2,并用X射线单晶衍射法测定了晶体结构。     

基于内网的主动防泄密安全机制研究

本文在分析内网信息安全防护现状基础上,提出主动防泄露安全机制,采用了综合身份认证访问控制,文件操作实时监控和数据安全存储的全面信息安全防护技术方案,设计了一种基于内网的主动防泄密信息安全防护系统。     

正二十面体十二钨多酸催化丙酮羟醛缩合的初探

本文发现，正二十面体十二聚钨多酸对丙酮分子羟醛缩合生成4-甲基-4-羟基-2-戊酮具备有效的催化作用。     

Synthesis,Crystal Structure of Cis—dioxo—catecholatotungsten（VI） Complex and Its NMR Studies on the Interaction with ATP

Cis-dioxo-catecholatotungsten(VI) complex anion[W^(VI)O2-(OC6H4O)2]^2- was obtained with discrete protonated ethylenediamine (NH2CH2CH2NH3)^ cations by the reaction of tetrabutyl ammonium decatungstate with catechol in the mixed solvent of CH3OH,CH3CN and ethylenediamine,and compared with its molybdenum anaogue [Mo^(V) O2(OC6H4O)2]^3- by crystal structure,UV,EPR,The results of the UV and EPR spectra show that tungsten is less redox active than molybdenum since the molybdenum is reduced from Mo(VI) to Mo(V) but tungsten stays in the original highest oxidized state Mo(VI) when they are crystallized from the solution above.It is worthy to note that [W^(VI)O2(OC6H4O)]^2- shows the same coordination structure as its molybdenum analogue in which the metal center exhibits distorted octahedral coordination geometry with two cis-dioxocatecholate ligands and might have the related coordination structure feature with the cofactor of flavoenzyme because [Mo^(V)O2(OC6H4O)2]^3- presented essentially the same EPR spectra as flavoenzyme.The NMR studies on the interaction of the title complex with ATP reveal that the reduction of W(VI) to W(V) occurs when the title complex is dissolved in D2O and the W(V) is oxidized again when ATP solution is mixed with original solution and the hydrolysis of the catecholato ligand take places at mean time being monitored by ^1H NMR and ^13C NMR spectra.     

抗人乳腺癌糖蛋白单克隆抗体及相应抗原免疫反应的电化学阻抗 免疫分析研究

报道了一种用于抗人乳腺癌糖蛋白单克隆抗体(GP1D8)及相应抗原免疫反应的电化学阻抗免疫分析法。本方法采用将抗体直接定向组装到石英晶片/金电极上,实验中设计的阻抗传感测量只响应免疫信号。结果显示,当组装单克隆抗体的金电极被插入特殊抗原的溶液中时,电化学阻抗谱(EIS)发生明显的变化,成功地检测了组装抗体和相应抗原的免疫反应。     

嵌入式电话自动拨测系统的设计与实现

电话自动拨测系统能够极大地提高电信维护工作的效率,市场上已有的此类产品系统部件多,结构复杂,成本较高.设计了一种简单低成本的嵌入式电话自动拨测系统,以华邦W78E58B单片机为控制器,结合设计的电话通信模块,实现了自动拔测终端信号的发送、检测和接收,并设计了网络模块实现远程客户端与拨测终端之间的通信.设计在中国电信的固定电话网络里,成功实现了对中国电信的固定电话网络和中国移动的移动电话网络的自动拨测,拨测结果真实、准确地反映了网络的运行状况和业务状况.     

Synthesis and Structural Characterization of Pd[CH3O（O）C6H3CHNNC（S）NH2]（C5H5N）

1 INTRODUCTION Palladium (Ⅱ) coordination and organometallic compounds usually show square planar environments at the metal center[1], and have experienced an im- portant development in the past years due to their acting as intermediates in different types of catalytic reactions and numerous applications in organic synthesis[2]. Although palladium plays an increase- ingly recognized role as a biometal[3], little is known about the structure and function of palladium compounds in living …     

用电化学方法研究一些分子对碳钢的缓蚀性

本文利用电化学方法测定一些有机分子的特征基团及结构在酸性腐蚀介质（０１％）Ｈ２Ｓ＋５％ＨＣｌ）中对碳钢的缓蚀作用,研究分子中特征基团及结构对缓蚀性的影响,分析分子的微观结构与宏观缓蚀作用之间的相互关系,为进一步合成高效缓蚀剂提供一些理论依据．