高师本科生毕业论文质量滑坡成因及对策

高师本科生毕业论文质量出现了滑坡现象。其原因主要表现在:(1)受现存教育体制中传统教育观念和应试教育的影响;(2)毕业论文管理制度不完善,写作时间安排欠妥;(3)学生重视不够,心情浮躁;(4)师资不足,答辩不严,指导不力;(5)选题不当,观点陈旧,创新不足。解决策略如下:(1)树立正确的毕业论文研究价值取向;(2)严格开题、指导、评审与答辩制度;(3)实行"一体化"的毕业论文指导方式;(4)全面实施指导教师负责制;(5)建立指导毕业论文的灵活机制。     

关于同型系统间的联系的几个问题

给出了同型系统的同态、同构概念,并引入了给定系统的诱导系统,利用映射及同态公式,刻划了同型系统的同态(同构)与其诱导系统的同态(同构)之间的密切关系,并对同态(同构)不变性问题进行了讨论,得出了一些相关结果.     

梅江水系水环境质量评价及污染防治对策

根据对梅江水系7个监测断面的水质监测结果,对梅江水系水环境质量进行了综合评价 据此,提出了相应的污染防治对策,为治理改善梅江水环境质量提供科学依据     

现代商业银行激励机制的选择

影响商业银行激励效果的因素是多方面的。建立有效的激励机制,应从五方面努力:（一）确定委托代理关系,引入市场竞争隐性激励;（二）打破工资等级制,实行行长年薪制;（三）设置岗住工资;（四）偿试股票期权激励;（五）改革费用管理体制。     

Network reliability analysis of digital instrument and control system with GO-FLOW methodology

In this paper,the network reliability of an actual digital instrument and control system (DICS) network is analyzed by using GO-FLOW methodology (GFM).The evaluations of common-cause failure (CCF) and uncertainty are incorporated.Three significant CCF groups (real time servers,gateways,reactor protection system) and three typical time intervals (10 min,1 h,and 24 h) are selected in the analysis.It is concluded that the network contribution of CCF accounts for over 68% of the system failure probability.The result indicates that GFM is suitable for the network reliability analysis.     

中国地方性教学型大学组织整合机制的案例研究

案例研究表明,当前中国地方性教学型大学的组织整合机制具有如下特点:(1)中国地方性教学型大学的组织整合机制并非以文化机制为主;(2)科层机制和文化机制在中国地方性教学型大学的组织整合中都发挥着重要的作用,相比而言,科层机制的作用更大一些;(3)目前,市场机制在中国地方性教学型大学的组织整合中发挥的作用很小。     

基于复小波包的多载波CDMA系统在Nakagami-m衰落信道下的性能

在分析多载波码分多址(MC-CDMA)的原理基础上, 提出了一种基于复小波包的MC-CDMA系统. 同时, 研究了该系统分别采用等增益合并和最大比合并时在Nakagami-m衰落信道下的性能; 并推导了相应的误码率表达式. 该系统能克服通常MC-CDMA系统由于插入循环前缀(CP)所带来的频谱效率的下降. 理论分析和仿真结果表明:该系统要优于通常MC-CDMA系统和基于实小波包的MC-CDMA系统, 有着优越的抗多径衰落和多址干扰能力,而且该系统也优于采用CP的通常MC-CDMA系统.     

基于TKX-50的PBXs含能材料力学性能计算模拟

在含能材料中添加高分子粘结剂来制备高聚物粘结炸药(PBXs)是改善其力学性能的一种重要手段。含能材料1,1’-二羟基-5,5’-联四唑二羟胺盐(TKX-50)具有高储能、高爆速、低灵敏度和低毒性等特点。将TKX-50分别与HMX和RDX混合得到TKX-50/HMX混合体系和TKX-50/RDX混合体系。该文利用分子动力学(MD)模拟分别计算在TKX-50、TKX-50/HMX混合体系和TKX-50/RDX混合体系中添加聚双(叠氮基甲基)氧杂环丁烷(poly-BAMO)和聚双(氟甲基)氧杂环丁烷(poly-BFMO)形成的PBXs的力学性能。基于弹性力学原理计算的结果表明,TKX-50/高聚物PBXs的杨氏模量E、剪切模量G、体积模量K较纯的TKX-50晶体模量均有下降。且模量随所加入poly-BAMO和poly-BFMO的质量分数增加而降低越多,其中poly-BFMO对PBXs弹性和塑性的提高比poly-BAMO更显著。TKX-50/HMX混合体系的PBXs与TKX-50/RDX混合体系的PBXs的K/G值分别相比TKX-50/HMX混合体系与TKX-50/RDX混合体系下降。在TKX-50/RDX混合体系中添加poly-BAMO或者poly-BFMO形成的PBXs相比TKX-50/RDX混合体系硬度增大,弹性下降。     

Product-Oriented Integrated CAPP System

Thefunctionofcomputeraidedprocessplanning(CAPP)istotransformtheproductdesigninformationintotheinstructionsoftheproductmanufactureinthelightofthestatusoftheenterpriseresources .CAPPisthebridgebetweentheproductCADandtheCAM ,anditlinksproductdatamanagement (PDM )andERP .WiththewideapplicationofCADandthespreadofthecomputerintegratedmanufacturing (CIM )technologyinmanyenterprises ,asakey ,CAPPisnowrequiredtobemoreadaptable,feasibleandintegrated .Thelimitedfunctionandpart processoriented…     

Research on a simulated 60 kW PEMFC cogeneration system for domestic application

INTRODUCTION Distributed cogeneration technology is a hot topic in electrical and energy industries (Ferguson and Ugursal, 2004). China’s need to limit the power usage in some places to meet the peak power demand in summer of recent years stimulated and supported increasing research on distributed generation tech- nologies. Fuel cells, as renewable energy sources, are considered one of the most promising sources of distributed electrical power. Operational fuel cell systems have perform…     

A STEP Based Integrated System for Assembly Planning and Design

本文提出了一个装配规划与设计的集成系统，该系统借助于产品数据转换标准ＳＴＥＰ实现了在装配规划和装配设计之间的产品数据交换．系统由ＣＡＤ子系统、产品建模子系统和装配规划子系统所组成．产品模型符合ＳＴＥＰ标准，大多采用集成资源中的实体，部分采用对装配规划必需的自定义实体．提出了一个简化的装配顺序生成方法，它适用于复杂装配体的装配规划．从优化总装配时间的角度对生成的装配顺序进行了评价．     

An autonomous mobile agent-based distributed learning architecture: a proposal and analytical analysis

Current distance learning systems are increasingly packing highly data‐intensive contents on servers, resulting in the congestion of network and server resources at peak service times. A distributed learning system based on faded information field (FIF) architecture that employs mobile agents (MAs) has been proposed and simulated in this work. The learning contents are decentralised in the proposed system, and these are dynamically distributed around the main education site server on different nodes in response to network congestion and server overload. The system simulation results have been presented and analysed. The proposed system holds the potential to address the network congestion and server‐overload problems in distance learning systems.     

与《综合英语教程》(2)编者商榷

<综合英语教程>之音标系统不是现行的国际音标系统,它仅标注英式发音,有违以双音标准为宜的标音原则.文章对该教材的标音原则以及New Words一栏的编写目的提出质疑,并指出了教材中存在的一些失误.     

基于MAS的故障诊断任务分解研究

在传统故障诊断基础上，将多Agent技术（MAS）应用于复杂系统故障诊断领域，是求解复杂过程故障诊断问题的一种新尝试．研究了基于MAS的分布式智能故障诊断模型，基于一种分布式Agent诊断系统结构原型系统，重点研究了诊断问题的任务辨识、分解问题，构建了基于Agent的任务分配的综合遗传算法和模拟退火算法的混合算法．应用表明，该算法具有很好的可扩展性、适应性和稳定性．     

基于模糊聚类的入侵检测系统的实现

传统的入侵检测技术在扩展性和适应性上已不能应付越来越复杂的攻击方式,利用模糊聚类方法可以在入侵检测中生成更好的检测规则,提出了FCM的改进算法SFCM,设计并实现了基于SFCM的入侵检测系统FCIDS,利用KDD CUP99数据进行实验,结果表明能够显著提高检测率和降低误报率。     

Assessing the effectiveness of learning solid geometry by using an augmented reality-assisted learning system

This study integrates augmented reality (AR) technology into teaching activities to design a learning system that assists junior high-school students in learning solid geometry. The following issues are addressed: (1) the relationship between achievements in mathematics and performance in spatial perception; (2) whether system-assisted learning can improve the spatial perceptions of students; (3) whether students with high, average and low academic achievement learn effectively after taught with system assistance; (4) system usability; (5) system task load; and (6) the relationship among various factors. Study participants were 76 students from Tainan City, Taiwan. Qualitative and quantitative data are obtained using pre- and post-system-assisted learning paper–pencil tests, a system usability scale, National Aeronautics & Space Administration Task Load indeX, and observations and focus group interviews. Analysis results indicate that students' math scores and spatial perception during the test closely correspond to each other. Additionally, system-assisted can improve the spatial perceptions of student. Regarding group differences related to the significance of impact, students with average and low academic achievements exhibit small and medium levels of effectiveness, but are insignificant in high academic achievement students. As for system usability, students with low academic achievements demonstrate a positive attitude toward the intensive programs provided by the system. However, the correlation between students’ learning effectiveness and system usability/task load is low.     

基于B/S结构的高职院校实践教学质量评价系统的设计与实现

采用软件工程（SE）思想以及三层BSS体系架构,设计了一个高职院校实践教学质量评价系统,重点阐述了系统设计思路,数据库设计及系统主要功能的实现。     

锚泊辅助动力定位研究与进展

锚泊辅助动力定位是结合了锚泊定位系统和动力定位系统的一种新型位置控制系统。锚泊辅助动力定位系统是最节能且最稳定的定位系统,在国际海洋工程领域具有广阔的应用前景。本文着眼于目前国际上对于锚泊辅助动力定位系统的研究状况,分别从理论计算和模型试验两个角度对其研究进展进行阐述,同时介绍了我国在此领域的研究进展,进一步提出了对于强化相关研究工作的建议。     

Concatenated Trellis Coding and CPM for DS/SSMA Communications in Rayleigh Fading Channel

本文在衰落信道下将级联网格编码调制（ＴＣＭ）和连续相位调制（ＣＰＭ）应用于直接序列扩频多址（ＤＳ／ＳＳＭＡ）系统中．作者分别采用了理论分析和数值模拟两种方法研究了级联ＴＣＭ／ＣＰＭＤＳ／ＳＳＭＡ系统的性能，结果表明在相同的条件下采用级联ＴＣＭ／ＣＰＭ编码调制方式的ＤＳ／ＳＳＭＡ系统的错误概率远小于采用单一ＴＣＭ或ＣＰＭ的ＤＳ／ＳＳＭＡ系统的错误概率．     

二阶混合—复合型方程组的边值问题

本文解决了复合-混合型方程组若干边值问题正规解的存在唯一性,发现了边界条件的参数对问题解的存在唯一性有影响.