浅谈函数与方程

本文辩证地讨论了函数与方程二者之间的联系与区别；函数思想与方程思想的相互渗透与转化。从而给我们提供了用方程思想解函数问题和用函数思想解方程问题的方便。     

试析19世纪末20世纪初德国外交政策转变的经济动因

19世纪末20世纪初,统一后的德国无论从经济发展还是社会变化都已发展为一个现代意义上的工业化国家,作为上层建筑的基础,它也必然会促使德国外交政策的转变。     

The Transformation of Psychology in a Post-Apartheid South Africa: An Overview

Certain issues that are being debated in psychology in a post-apartheid South Africa are discussed, namely the development of professional organizations, indigenous healing and psychology, the psychometric movement, and forms of methodological inquiry. It is argued that South African psychology is striving to become more appropriate to the majority of its peoples, whether it be on the professional or research fronts. There is a desire to develop indigenous epistemologies and not to become excessively reliant on Euro-American epistemological traditions. Psychology is struggling to make mental health resources available to all South Africans.     

Physiologically Based Liver Modeling and Risk Assessment

Because of the inherent complexity of biological systems, there is often a choice between a number of apparently equally applicable physiologically based models to describe uptake and metabolism processes in toxicology or risk assessment. These models may fit the particular data sets of interest equally well, but may give quite different parameter estimates or predictions under different (extrapolated) conditions. Such competing models can be discriminated by a number of methods, including potential refutation by means of strategic experiments, and their ability to suitably incorporate all relevant physiological processes. For illustration, three currently used models for steady-state hepatic elimination--the venous equilibration model, the parallel tube model, and the distributed sinusoidal perfusion model--are reviewed and compared with particular reference to their application in the area of risk assessment. The ability of each of the models to describe and incorporate such physiological processes as protein binding, precursor-metabolite relations and hepatic zones of elimination, capillary recruitment, capillary heterogeneity, and intrahepatic shunting is discussed. Differences between the models in hepatic parameter estimation, extrapolation to different conditions, and interspecies scaling are discussed, and criteria for choosing one model over the others are presented. In this case, the distributed model provides the most general framework for describing physiological processes taking place in the liver, and has so far not been experimentally refuted, as have the other two models. These simpler models may, however, provide useful bounds on parameter estimates and on extrapolations and risk assessments.     

缓解我国就业压力的重要途径--再谈农村工业化

工业化包括农村工业化,片面的工业化和单向的农村———城市人口流动模式都不能解决农村剩余劳动力就业问题。为充分就业找到新途径,关键在于对传统农业的改造和加速农村工业化发展。     

知识产权保护与科技成果转化的冲突及其协调

知识产权保护与科技成果转化的冲突,是指对知识产权个人垄断权益的保护与其以实现社会整体利益为目标的科技成果转化之间的冲突,其本质是人为的社会体制与科技发展内在的客观规律之间的冲突;提高科技研发人员自身素质、强化企业技术创新能力、加强政策法律导向和市场调节作用等,是消除该类冲突的主要途径和措施.     

THEMA剑杆织机的实验与分析

运用机械动态参数测试仪 ,通过对THEMA剑杆织机的开口、引纬机构进行动态测试 ,利用计算机处理有关测试数据 ,分析和讨论了该机的主要技术参数     

基于遗传算法与模糊控制的建模方法

从实时系统的需求出发,研究利用遗传算法实现实时模糊控制的新技术,包括规则的形成、前提参数的训练,通过对比不同的训练参数规模,讨论了训练参数规模的大小与模型“范化”之间的关系。 经检验,用遗传算法生成的模糊系统模型输入变量少、规则数目少,并且误差小于多数传统算法生成的模型,整个模型的形成过程时间空间复杂度小、易于控制,且不受经验知识的约束,适用于实时系统。     

政治文化跳跃与政府角色转换

封闭之后的改革开放,为我们带来了工业文明与信息文明,导致中国政治文化系统中传统社会、工业社会、信息社会等文化因子同时并存并相互作用。在政治文化领域存在的是跳跃性的政治思想研究、复杂矛盾的政治心理。变迁的行政文化和转换的传媒角色。这种过渡型的政治文化状况造成政府角色转换时左右为难,一方面要求政府提升对外在政治文化的回应与引导能力,另一方面要求我们以补课、回溯与紧扣现实这三种态度塑造出新的政治文化,顺利实现政府角色转换。     

普通高校科研的几点看法

分析了目前普通高校科研工作科技成果转化资金投入不足 ,缺乏健全科技成果转化体制、科技成果成熟性差等问题 ,提出以政府主导 ,加大投入、加强校企联合、建立风险基金、建立科技产业园区等几个重要解决渠道 ,及利用普通高校科研成果转化的扩散效应拉动相关产业发展 ,提高产业发展水平从而对地方与国民经济发展起到积极的促进作用