酸碱软硬度的新标度研究

简要综述了Lewis酸碱软硬度定量标度的研究进展。在此基础上提出Lewis酸软硬度标度的改进方法，用离子键与共价键力之差（即HSA=Z/r^2i-Z*/r^2c)来计算Lewis酸的软硬性标度；引用新的电负性的计算方法，计算有关元素或基团的电负性（X），并将其结果用为Lewis碱的软硬性标度，扩大了Lewis碱的标度范围。此酸碱软硬度标度结果与Pearson对硬软酸碱的分类基本一致。     

静电力、共价力与Lewis酸的软硬度

用二参方程φ=XZ/ri^2 Z^＊/rc^2计算Lewis酸软硬的标度，参数Z／ri^2与静电力有关，Z^＊／rc^2与共价力有关．运用该式计算119种酸的软硬度值，结果与Pearson根据实验总结的分类结果一致.     

以硼酸三甲酯为探针分子红外光谱法测定Al2O3、SiO2的路易斯碱性的研究

以硼酸三甲酯为探针分子对金属氧化物Al2O3和非金属氧化物SiO2的表面路易斯碱性进行了红外光谱研究．硼酸三甲酯可灵敏地与Al2O3和SiO2的表面路易斯碱中心作用，其红外光谱提供了Al2O3和SiO2的表面路易斯碱性强度的直接信息。     

二苯甲酮肟的Beckmann重排反应研究

报道不同路易斯酸性催化剂作用下二苯甲酮肟的Beckmann重排反应的结果，即分别以PCl5、H2S04、HCl-Ac2O、H2SO4-Ac2O、H3PO4-Ac2O、PPA、HCl-Ac2O-AcOH为催化剂进行比较实验．发现H3PO4-Ac2O是二苯甲酮肟进行Beckmann重排反应的理想催化剂之一．     

Lewis酸催化合成柑菁腈的研究

本文比较了一系列Ｌｅｗｉｓ酸在月桂烯与丙烯腈的Ｄｉｅｌｓ－Ａｌｄｅｒ反应中的催化作用，催化剂的酸强度强烈影响月桂烯的转化率、柑菁腈的选择性及对位柑菁腈的区域选择性。这些选择性随的 温度的升高而下降，几乎不随的应时间而变化。利用ＵＶ，ＩＲ及＾１ＨＮＭＲ等分析研究了ＺｎＣｌ２和ＡｌＣｌ３催化该反应的作用机理，证明反应是由丙烯腈的腈基与Ｌｅｗｉｓ酸的金属离子发生配合作用，使得Ｃ＝Ｃ双键极化，从而改变反应     

The geometry of knowledge: Lewis, Becker, Carnap and the formalization of philosophy in the 1920s

On an ordinary view of the relation of philosophy of science to science, science serves only as a topic for philosophical reflection, reflection that proceeds by its own methods and according to its own standards. This ordinary view suggests a way of writing a global history of philosophy of science that finds substantially the same philosophical projects being pursued across widely divergent scientific eras. While not denying that this view is of some use regarding certain themes of and particular time periods, this essay argues that much of the epistemology and philosophy of science in the early twentieth century in a variety of projects (neo-Kantianism, logical empiricism, pragmatism, phenomenology) looked to the then current context of the exact sciences, especially geometry and physics, not merely for its topics but also for its conceptual resources and technical tools. This suggests a more variable project of philosophy of science, a deeper connection between early twentieth-century philosophy of science and its contemporary science, and a more interesting and richer history of philosophy of science than is ordinarily offered.     

Intensions, belief and science: Kuhn’s early philosophical outlook (1940-1945)

Between 1940 and 1945, while still a student of theoretical physics and without any contact with the history of science, Thomas S. Kuhn developed a general outline of a theory of the role of belief in science. This theory was well rooted in the philosophical tradition of Emerson Hall, Harvard, and particularly in H. M. Sheffer’s and C. I. Lewis’s logico-philosophical works—Kuhn was, actually, a graduate student of the former in 1945. In this paper I reconstruct the development of that general outline after Kuhn’s first years at Harvard. I examine his works on moral and aesthetic issues—where he displayed an already ‘anti-Whig’ stance concerning historiography—as well as his first ‘Humean’ approach to science and realism, where his earliest concern with belief is evident. Then I scrutinise his graduate work to show how his first account of the role of belief was developed. The main aim of this paper is to show that the history of science illustrated for Kuhn the epistemic role and effects of belief he had already been theorising about since around 1941.     

澳洲茄胺盐酸盐注射剂对小鼠Lewis肺癌抑瘤作用研究

目的通过3次抑瘤实验观察研究澳洲茄胺盐酸盐注射剂对小鼠Lewis肺癌的抑瘤作用.方法通过肿瘤细胞悬液接种法,制备小鼠Lewis肺癌动物模型,采用腹腔注射给药法,连续7 d,2次/d.给药结束后解剖小鼠,取瘤称重,观察药物作用.结果从给药剂量上来看,与对照组比较,11 mg/kg剂量组开始出现抑瘤作用,抑瘤率为43.82...     

刘易斯因子及其对板式蒸发冷却器性能的影响

对热湿交换过程进行质量与能量衡算,建立逆流板式蒸发冷却器传递过程的数学模型.分析了刘易斯数、刘易斯关系式与刘易斯因子之间的区别与联系;计算得到了蒸发式冷却器空气与水热湿交换过程的刘易斯因子取值范围大约在0.75～0.95之间,其受水温和空气湿球温度影响较大.分析了刘易斯因子取值在0.5～1.5范围内对冷却器流体出口状态、热量交换与冷却效率的影响,以及应用刘易斯关系式所导致的误差,结果表明应用刘易斯关系式导致的冷却效率相对误差小于2%,工程应用该简化是合理的.     

催化剂-微波合成Schiff碱的研究（英文）

在微波条件下,系统地研究了催化剂和微波辐射功率对Schiff碱合成的影响,并和传统搅拌合成方法进行了比较。研究了三种催化剂硫酸氢纳、三氯化铝和三氯化锑对Schiff碱合成的催化活性。通过红外光谱、核磁氢谱和元素分析等对产品进行结构表征。研究结果表明：反应过程具有反应时间短和反应条件温和的特点;微波辐射功率800W就可以满足反应条件;路易斯酸三氯化锑比其它的催化剂表现更高的催化活性;催化剂摩尔分数为6%就能明显的促进反应进程。