网络管理及网络管理标准化

论述了网络使用期内管理的重要性，并着重从网络失效管理（Fault Management)；配置管理（Configuration Management）；性能管理（Performance Management）；计费管理（Account-ing Management）；安全管理（Security Management）五大功能进行了分别的阐述和分析，强调网络管理必须走标准化的道路，以及网络操作系统共享资源管理的实现。     

Comparison of Low Stress Mechanical Properties of Light Weight Wool and Wool Blend Fabrics using the KES-F and FAST Instruments

This study compares the test results of the FAST (Fabric Assurance by Simple Testing) with those of the KES - F (Kawabata Evaluation Systems for Fabrics) for a range of nineteen light weight wool and wool blend fabrics in terms of the low - stress mechanical properties of bending, shear, and tensile deformation. It is found that there are very significant correlations between the corresponding parameters for extensibility and shear rigidity obtained from the test results of the two systems. The correlation between the values of bending rigidity obtained from the two systems is only moderate. Furthermore, for the fabrics tested in this study, the values of bending rigidity, shear rigidity, and extensibility measured using the KES - F instruments are higher than those of the corresponding parameters measured using the FAST instruments. The linear regression equation is given for each pair of corresponding parameter.     

指控系统的结构对防空战性能的影响

指挥控制系统是决定现代高技术战争胜负的关键因素，其重要性越来越受到国防和军事部门的重视，而系统的决策模型又是整个系统性能好坏的基础。建立了某防空指挥控制系统的变结构Petri网决策模型，并通过性能评估验证了变结构模型在提高系统抗毁性和灵活性等性能指标方面的作用。     

构建完善民生科技公共服务平台——太原市民生科技的发展及需求调查分析

太原市民生科技发展及需求调查的目的 改善民生的绿色科技平台旨在发挥政府在科技体系中的引导作用,利用科研院所、高等院校、科技中介机构和企业研发机构等组成的产学研联盟所应发挥的科技资源优势,整合现有科技资源,推进科技资源运用到民生领域;利用平台机制增强市民的科学素质和使用科技的理性,体现政府服务为民的职能转变,构建完善的公共科技服务体系.     

Deformation Behaviors of Laser Forming of Ring Sheet Metals

Laser forming is a highly flexible sheet metal forming technique. In laser forming along curved irradiation paths, the heated zone is bigger and the effects of the processing parameters on the deformation are complex. The deformation behaviors of laser forming of ring sheet metals have been investigated from the thermal-mechanics analysis by the finite element (FE) simulation based on the proposed finite element method model. The effects of ring central angle and scanning path on deformation of ring sheet metal were investigated. The results are as follows: (1) in comparison with the laser bending along linear path, the marked third point has two peak temperatures during the laser forming process along curved path; (2) the forming process fluctutes continuously and the sheet edge is warped because the rigid-ends effect due to the restriction of sheet; (3) when the ring central angle increases, the displacement difference of the marked three points decreases and then increases, and the warped curvature of sheet edge decreases; (4) when the laser beam diameter increases, the displacement difference of the marked three points decreases and the warped curvature increases.     

Identification of a novel tillering dwarf mutant and fine mapping of the TDDL(T) gene in rice (Oryza sativa L.)

Rice plant architecture is an important agronomic trait that affects the grain yield. To understand the molecular mechanism that controls plant architecture, a tillering dwarf mutant with darker-green leaves derived from an indica cultivar IR64 treated with EMS is characterized. The mutant, designated as tddl(t), is nonallelic to the known tillering dwarf mutants. It is controlled by one recessive nuclear gene, TDDL(T), and grouped into the dn-type dwarfism according to Takeda’s definition. The dwarfism of ...     

反馈在运动神经控制模型中的作用

神经系统对肢体运动控制的机理是目前生物控制论研究的一个前沿课题。基于神经系统中α－γ共激励现象、肌肉的弹性和肌梭的反馈特性，建立了一个新的α－γ神经控制模型。在此基础上，讨论了开环α－γ模型的结果和系统的闭环模型的自反射和互抑制之间的关系。开环的α－γ模型能实现运动控制，但存在很大的缺陷。缺陷存在的原因是没有考虑反馈的作用。自反射和互抑制对运动控制的作用本质上没有差别，而使运动可以以不同的共激励情况下实现。     

Dynamic Changes of the Farmers and Herdsmen’s Income Sources in the Tibet Autonomous Region

0Introduction Beingaregionrelativelybehindintermsofruraleconomicdevelopment,theTibetanAutonomousRegionin2003achievedanaveragenetincomepercapitaof1690yuan(RMB)for thefarmersandherdsmen,rankingthe4thnationwide.Comparedwiththatof2001,thisis aconsiderablerise,howeverthereisstillabiggapfromotherprovincesandregionsthatare economicallydeveloped[1].HowtoraiseTibetfarmersandherdsmen’sincome,improve livingqualityoftheminoritynationalityareasandpromoteregionaldevelopmenthavebecome thepriorityoftheCen…     

微小零件图像处理与分析方法的精度、稳定性和效率

对于微小零件的尺寸检测 ,传统方法是通过工具显微镜观察放大图像进行手工测量 ,它的缺点是精度不足、稳定性差、效率低。因此本文提出在工具显微镜上采用“图像处理与分析”方法 ,这种方法不仅可以检测微小零件的尺寸精度 ,还可以检测其形位误差。文中对检测过程中的测量精度、稳定性和效率进行了分析和论证 ,并通过与传统方法的比较验证了“图像处理与分析”方法的新颖性、先进性和实用性     

浅议企业资产重组中短期行为的成因及对策

资产重组是企业间强强联合的战略决策 ,也是使企业摆脱困境 ,实现资本最大增值的经济运行模式。本文针对日益严重的与企业资产重组宗旨相悖的短期行为进行探讨 ,分析其表现及成因 ,并提出选拔任用好人才、规范政府行为、法规明确化等遏制对策