管理史对MBA的边际效用

近年来 ,我国MBA的社会评价不高 ,其根本原因是MBA毕业生不能满足市场要求。本文通过分析管理史的功能 ,得出学习管理史对MBA的边际效用大 ,MBA培养方案中有必要增设管理史类的课程。     

完善MBA"公司理财"课程教学的思考

"公司理财"是MBA核心课程之一,是会计学、金融学与管理学的有机结合,具有理论性、法规性和实践性均较强的特点.目前MBA"公司理财"教学过程中存在学员对基础课程的掌握程度参差不齐、由于时间限制而不能系统深入地完成教学任务、教材选用受到一定限制、案例教学组织欠合理等问题,各商学院在MBA"公司理财"的教学过程中应正确处理好专业基础课程与"公司理财"课程之间的衔接关系、适当调整教学内容、建设和完善教材体系、合理组织案例教学.     

基于VHDL的MBA-WT乘法器设计

分析了设计高速乘法器所用的算法,并且基于VHDL硬件描述语言设计出了一个16位MBA-WT乘法器.该乘法器采用了改进Booth算法,可使部分积的个数减少1/2;也采用Wallace树型结构的加法器,完成N个部分积需要O(logN)次加法时间;再使用超前进位加法器得到最后乘积来进一步提高电路的运算速度.整个设计用VHDL语言实现并由Modelsim以及Synplify仿真验证.     

对我国MBA教育的几点思考

MBA教育是我国研究生教育的重要组成部分,它对我国的经济建设与企业发展起着重要作用。论文在分析国内外MBA教育共同特点的基础上,指出了我国MBA教育中存在的一些问题,提出了发展MBA教育的具体措施。     

论我国MBA商业伦理教育目标体系的构建

本文从我国社会现实需求出发，确定我国MBA商业伦理教育的目的是培养道德型领导。在此基础上，以Trevino道德型领导模型为基础，以教育的可行性为标准，从道德人和道德型经理两个雏度将MBA商业伦理教育的目的分解为提高伦理决策能力和伦理领导能力两个目标。进而从知识、技能、价值观三个层次上将MBA商业伦理教育目标分解为可衡量、易评价的子目标。目的、目标、子目标共同构建三层次的MBA商业伦理教育目标体系。     

NN'-亚甲基双丙烯酰胺合成工艺研究

采用复合催化剂B109可明显提高NN′-亚甲基双丙烯酰胺合成的转化率,并研究了物料配比、反应温度和时间对转化率的影响。     

Polymeric pro-drug sutures for potential local release of salicylic acid

A polymeric pro-drug was produced by means of two-step grafting of N-vinylcaprolactam and 2-methacryloyloxy-benzoic acid (2MBA) onto polypropylene sutures, showing in vitro slow release of salicylic acid (SA). Pre-irradiation grafting method was implemented to functionalize the surface of sutures using gamma rays as starter to induce the polymerization process. 2MBA was grafted on a polymer surface to obtain a polymeric system with ability to release SA in a localized site by hydrolysis of its labile ester bond. Factors such as applied dose, reaction time, temperature reaction, and monomer concentration were analyzed to understand how it affects the grafting process. Functionalized sutures were analyzed by FTIR-ATR, thermogravimetric analysis, and DSC. The release profile study of block copolymer was carried out in a phosphate buffer solution at pH 7.4 and 37°C; the assay was monitored by UV–vis at 296?nm; finally, molecule of released SA was identified by mass spectrometry.     

N,N′-亚甲基双丙烯酰胺质量分数的测定

N,N-亚甲基双丙烯酰胺(MBA)是一种用于生产消炎药、外用药棉、绷带、交联淀粉微球、膏布和外科手术中的各种衬垫、药物吸收基质材料的药用辅料。MBA的质量分数对于药品及药用辅料的生产至关重要。为了检验MBA质量分数是否能够满足药用辅料生产的需要,采用气质联用(GC-MS)、核磁共振氢谱(1H HMR)、碳谱(13C NMR)、高效液相色谱(HPLC)对MBA进行了质量分数分析,结果表明,MBA的质量分数符合药用辅料生产的要求。     

棉的低温交联研究

通过测试整理样的回复性能,定性研究了几种常见交联剂在低温条件下对棉的交联性能。其中乙二醛交联效果显著,丁四羧酸（BTCA）、双乙烯基砜类染料S-GL、N,N-亚甲基双丙烯酰胺（MBA）、封端基异氰酸酯有一定交联作用,环氧树脂、氮丙啶等几乎没有效果。     

N,N′-Methylenebisacrylamide polymerization initiated by Ce(IV)—Malic acid redox system—A kinetic study

Free-radical-initiated linear cyclopolymerization of a symmetrical non-conjugated divinyl monomer, viz. N,N'-methylenebisacrylamide, was carried out using cerium sulphate as initiator and malic acid as activator, in an inert atmosphere at 25 ± 0.1°C. A gel-free polymer was formed under the experimental conditions. The order with respect to malic acid and monomer was found to be 1 and 2, respectively. The rate of polymerization was found to be inversely proportional to the concentration of Ce(IV). The overall energy of activation was found to be 25.5 kJ mol^?1. An intramolecular cyclization prior to propagation is proposed in formulating a suitable mechanism to explain the kinetic results.