基于神经网络的无心磨床建模及其控制系统

提出了无心磨床的神经网络控制方案，并通过建模对控制系统进行了仿真，仿真结果证明该方案是切实可行的。     

Hepatic acid hydrolases of albino rats,Mastomys natalensis and albino mice duringPlasmodium berghei infection

Summary Changes in liver acid hydrolase activities during the infection of albino rats,Mastomys or mice withPlasmodium berghei are described. B-Glucosidase, B-galactosidase and N-acetyl-B-D-glucosaminidase exhibited widely different responses with acid phosphatase and cathepsin-B the least responsive and are likely to be causally related to immunity of animals.     

语境意识与英译汉译文质量--CET4考生英译汉试卷评析

本文借助语篇语言学关于语境的理论，以CET4英译汉考题为例，分析了考生在翻译过程中容易出现的问题及其成因。分析表明：在英汉语言水平大致相当的情况下，译文质量的高低在很大程度上取决于考生是否把原文看作一个整体，取决于是否具有较强的语境意识。加强学生的语境意识能有效地提高译文质量。     

A High-Performance Extraction Method for Public Opinion on Internet

Aiming at the importance of the analysis for public opinion on Internet, the authors propose a high-performance extraction method for public opinion. In this method, the space model for classification is adopted to describe the relationship between words and categories. The combined feature selection method is used to remove noisy words from the original feature space effectively. Then the category weight of words is calculated by the improved formula combining the frequency of words and distribution of words. Finally, the class weights of the not-categorized documents based on the category weight of words are obtained for realizing opinion extraction. Experiment results show that the method has comparatively high classification and good stability.     

Influence of Various Parameters on Collapse Behaviour of Thin Cylinders

Axial compression experiments on as received aluminum tubes and tubes with wall thickness eccentricity incorporated by off centre machining showed that the eccentricity caused transition of their collapse mode from axisymmetric to diamond. The numerical simulation of the collapse phenomenon was undertaken using a static non-linear Finite Element Analysis in ANSYS, and results are found to compare well with the experimental load compression and energy absorption responses for axisymmetric concertina and non-axisymmetric diamond modes. Having validated the numerical model with experiments, it has been used to undertake a systematic study of the load - compression characteristics and collapse mode transitions of the tubes with varying eccentricities in wall thickness and boundary conditions, as well as the material properties.     

自控设计中调节阀流量特性的选用问题

文中分析了调节阀的理想流量特性到工作流量特性的畸变原因及其畸变过程，介绍了流量特性的选择步骤及方法，并就如何提高调节阀的适应性和调节阀选用中应注意的问题进行了探讨。     

关于电厂SCR脱硝设置旁路的必要性分析

介绍了SCR工艺、原理及国外设置反应器旁路的现状,分析了设置反应器旁路的利弊,提出了取消反应器旁路的建议。     

烟叶烘烤技术研究进展与智能烘烤技术展望

人工智能技术的发展、物联网技术的普及以及无数烟草研究人员的基础研究为烟草农业现代化、智能化提供了有力的技术支撑和宝贵经验,将烟叶烘烤由人的主导转为机器智能控制这一问题的研究条件已然成熟.本文阐述了当前鲜烟叶素质判断技术、烘烤工艺匹配技术以及自动化烘烤技术的研究进展,并设想了烟叶智能烘烤技术要解决的问题,旨在为实现烟叶烘烤智能化提供研究思路.     

维果茨基与建构主义

维果茨基学说是一种关于高级心理机能发展的社会文化历史发展理论，即“文化历史发展理论”。这一心理发展理论。与西方的社会哲学思潮融汇，产生了作为建构主义重要流派之一的“社会建构主义”（social constmctivism）。