以毛沸石为催化剂制取对二氯苯的研究

研究了用一种高对位选择性的定向氯化催化剂－毛沸石，代替以往的FeCl3，AlCl3，SbCl3，SnCl4等氯化催化剂来制备对二氯苯（PDCB），并比较了温度、催化剂用量、助剂量对产物分布的影响。     

高校体育教师职业倦怠现象成因及对策

职业倦怠是困扰当前高校体育教师的主要心理情结。本文通过调查并结合相关理论，分析了导致体育教师萌生职业倦怠意识的原因。认为调整思路，在改依附为独立并适应社会意识的基础上，强化职业认同感，是消除体育教师职业倦怠现象的核心要素。     

具有Landesman-Lazer型条件的二阶不对称非线性方程的周期边值问题的周期解

本文对纯量这值问题其中x″＋f（x）x′＋g（t，x）＝0x（2π）－x（0）＝0，x′（2π）－x′（0）＝0其中f（0）＝c，x≥0，＝d，x≤0。给出了存在周期解的Landesmen－Lazer型条件。     

对英语教学的两点教学心理学思考

改革英语教学 ,提高英语教学质量 ,是一项宏大的系统工程 .在这项宏大的系统工程中 ,大力倡导快速阅读、将元认知理论引入英语教学实践 ,是两件刻不容缓的工作 .英语教学质量的高低 ,在一定程度上 ,与此两件工作的好坏密不可分 .     

Primary function of microcontroller EM78P458 and research on applications of its ADC on chip

The build-in structure of microcontroller EM78P458 and its application in supervising the water level of solar water heater are introduced. The circuit and the flow chart of AD conversion program are depicted. In the end, the design of assembly language program about the AD conversion is introduced. Foundation item: Research on electromaganetic scatter character of very complicate object (69571021) Biography: HUANG Ji-wu (1939-), male, Associate professor. Research direction: control with microcomputer and intelligent system.     

大学城课外体育俱乐部运行机制的分析研究

大学城体育课外俱乐部活动是构成大学城体育文化的重要因素之一.研究认为:大学城体育设施先进、人力资源丰富、多种形式俱乐部共存,具有相互互补特色.但缺乏有效的科学管理指导和经费支持是导致大学城体育课外俱乐部正常化运行困难的主要原因。     

P2P流媒体直播软件的分析与设计

本文通过展示一个实际的开发案例,总结开发中的分析和设计经验,查看如何进行从分析到设计的转换,以及在各个设计目标和设计约束之间的权衡.     

三种脑-肠肽对人绒毛膜促性腺激素分泌的影响

本工作利用灌流技术观察了3种脑-肠肽(P物质,CCK及NT)对新鲜人工流产的绒毛hCG分泌的影响。结果表明,P物质,CCK及NT均明显刺激绒毛释放hCG,并发现CCK作用大于P物质及NT。提示,hCG的分泌可能受这3种脑-肠肽的调节。     

Does the FRN in brain potentials reflect motivational/affective consequence of outcome evaluation?

Electrophysiological studies have utilized event-related brain potentials (ERPs) to investigate neural processes related to the evaluation of the outcome of behavioral performance or to the evaluation of external feedback. The feedback-related negativity (FRN) in brain potentials has been shown to be sensitive to information indicating monetary loss or negative feedback. Since monetary loss usually indicates both the consequence of previous performance and the reward value of stimuli, it is controversial whether the FRN reflects the cognitive process of error detection per se and/or the motivational/affective process related to the subjective evaluation of the error. This study manipulated the motivational/affective significance of negative feedback by penalizing errors in a context-dependent way in a line judgment task. Participants could lose more money in the loss incentive condition or win less money in the win incentive condition if their subsequent judgment of line segments was less accurate, whereas they could receive performance feedback but without monetary incentive in the neutral condition. Results showed that the size of the FRN effect as well as the size of the P300 effect, as assessed by comparing brain responses to the error trials with the responses to the correct trials, increased linearly over the loss, neutral, and win conditions, suggesting that the FRN is sensitive to the motivational/affective evaluation of the performance outcome.     

(P(x),,,-)逻辑的语义问题

本文得出了在 (P(x) , , ,- )逻辑的语义问题中 ,标准命题演算系统的每条公理在 (P(x) , , ,- )逻辑中都是模糊恒真的 ,但标准命题演算系统的定理 ,在 (P(x) , , ,- )逻辑中却不都是模糊恒真的。