溴乙烷制备实验的最佳条件的改进

通过对合成溴乙烷的方法和步骤的改进与讨论,找出各种反应条件对溴乙烷合成收率的影响.进而提出了较为合理的反应条件,提高溴乙烷的产量,同时找出产物的分离提纯方法.     

A Bayesian Evidence Synthesis for Estimating Campylobacteriosis Prevalence

Stakeholders making decisions in public health and world trade need improved estimations of the burden‐of‐illness of foodborne infectious diseases. In this article, we propose a Bayesian meta‐analysis or more precisely a Bayesian evidence synthesis to assess the burden‐of‐illness of campylobacteriosis in France. Using this case study, we investigate campylobacteriosis prevalence, as well as the probabilities of different events that guide the disease pathway, by (i) employing a Bayesian approach on French and foreign human studies (from active surveillance systems, laboratory surveys, physician surveys, epidemiological surveys, and so on) through the chain of events that occur during an episode of illness and (ii) including expert knowledge about this chain of events. We split the target population using an exhaustive and exclusive partition based on health status and the level of disease investigation. We assume an approximate multinomial model over this population partition. Thereby, each observed data set related to the partition brings information on the parameters of the multinomial model, improving burden‐of‐illness parameter estimates that can be deduced from the parameters of the basic multinomial model. This multinomial model serves as a core model to perform a Bayesian evidence synthesis. Expert knowledge is introduced by way of pseudo‐data. The result is a global estimation of the burden‐of‐illness parameters with their accompanying uncertainty.     

高效消毒杀菌剂（Ⅰ）——二氯异氰尿酸钠的合成

以液相法合成异氰尿酸中间体，选用了苯甲酸酯类（Ａ）及芳香硝基类（Ｂ）化合物为反应溶剂，产率分别为９４％（Ａ）和９３％（Ｂ）。此类溶剂文献未见报道。二氯异氰尿酸钠的合成，采用ＮａＯＨ＋Ｃｌ２的方法，产率达８８％。     

陈骙《文则》的修辞研究方法举隅

陈马癸《文则》考察修辞现象的方法至今仍有意义。着眼于汉语修辞学史 ,从“假之以渔”,而不是“假之以鱼”的角度 ,可发现《文则》中蕴含着素朴的辩证综合法、直观分析法、有限演绎法 ,实在难能可贵 ,值得今人批判地继承     

时距估计干扰效应的研究与思考

已有的研究从不同作业类型下的干扰效应和相关的理论解释两个方面对时距估计干扰效应进行了剖析 ,未来的研究应以分段 /综合模型为基础进行探讨 ,时距加工的认知神经研究促进了人们对时间信息加工实质的理解。     

论金刚石优质高产的若干问题

本文阐述了高品级金刚石富晶区动态生长原理与工艺的新进展,介绍了以优质、高产为双重目标的合成棒结构优化设计专利技术,并且探讨了片状触媒进一步减薄的可行性.     

新型杂多化合物Na7[Fe{Mo2O6CH3C(O)(PO3)2}2]·23H2O的合成及结构表征

在温和的条件下,通过Na2MoO4.H2O,FeC l3.6H2O及羟基乙叉二膦酸反应,得到了有机二膦酸配位的杂多钼酸盐Na7[Fe{Mo2O6CH3C(O)(PO3)2}2].23H2O,用X射线单晶衍射法和元素分析法确定了其结构,晶胞参数为:空间群P1,a=0.9524(11)nm,b=1.1056(13)nm,c=1.1508(13)nm,α=83.184(15)°,β=86.866(17)°,γ=83.247(17),°V=1.194(2)nm3,Z=1,R1=0.0397,wR2=0.0624(I>2σ).聚阴离子[Fe{Mo2O6CH3C(O)(PO3)2}2]7-为中心对称结构,两个碎片[Mo2O6{CH3C(O)(PO3)2}]5-被一六配位的过渡金属离子Fe3 连接,该聚阴离子具有C2h对称性.     

Presence of ‘America’ in Religious Circles of India

The paper shows how ‘America’ gradually became present in the Religious Circles of India after the arrival of Swami Vivekananda in America in 1893. Swami Vivekananda is the first individual who not only succeeded in introducing Hinduism, Vedanta in particular, to America and the West, but also in introducing what he considered to be the best aspects of American scientific and material culture to India. The bridge which Swami Vivekananda built and opened between America and India continues to be travelled by the saints, mystics, and religious leaders of India and the philanthropists, spiritual seekers and scholars of religion of America and the West even today. This modern re-synthesis of the material and the scientific with the Vedanta has been beneficial to both countries and cultures.     

我国现代物流的风险及物流保险需求分析

物流业已成为近几年我国经济领域中最活跃、最热门的新兴行业之一,第三方物流形态正引起人们的重视,其发展空间很大。但我国现代物流运行却涉及制度和法律风险、合同风险以及责任范围加大的风险。在现代物流中传统保险不能解决第三方物流公司面临的代位追偿等问题,而2004年推出的物流保险也存在物流保险责任范围小、计收保费依据不科学、不能满足快速发展的市场需求等缺陷。因此,我国急需发展现代物流综合保险,而根据物流市场的需要,进一步开发适销对路的险种是其中的关键。第三方物流企业也应根据需要选择物流综合保险策略,从而降低风险。     

固体阻垢剂ZGJ-1的室内研制

针对油田结垢特点和液体阻垢剂存在间歇注入、加药不均匀、药效短、消耗大和效果不稳定等缺点，室内合成了母体阻垢剂，研制筛选出了增效剂、粘合剂的配方，固体阻垢剂ZGJ-1的成型方法和工艺，建立了固体阻垢剂平均溶解速率及溶出率的评价方法，80℃时静、动态平均溶解速率分别为0.130 8、0.159 2g/d·cm²，在加药量为10mg/L时对油田污水的阻垢率达到98.9%。现已在胜利油田推广应用。