TRIZ创新流程与专利检索系统的结合探索

首先介绍了TRIZ理论的概念和创新流程,并描述了基于TRIZ的专利检索系统的研究现状,然后尝试将专利检索系统和TRIZ创新流程相结合。旨在完善TRIZ的实际运用流程,规避创新中的专利侵权风险、提高创新效率。     

医学高职高专化学教学改革的现状和发展趋势

过去的十几年,医学化学课程从教学对象、教学大纲和教材、教学方法和教学手段以及教学评价方法等方面都发生了剧烈的变化。本文在分析高职高专类医药医学院校医学化学教学改革现状的基础上,给出了医学化学教学改革的发展趋势如下:1)医学化学课程的整合与大纲及教材的专业化倾向;2)化学教学组织架构的多样化;3)考核评价方式的多样化;4)化学教学资源的集成化和网络化;5)实验教学内容的模块化和实验技能训练的开放性特征。     

我国科技资源共享立法策略研究

《科学技术进步法》修订实施以来,我国科技资源共享立法工作快速发展,但仍存在综合性法律法规缺失、内容缺乏可操作性及立法效果不佳等诸多问题,而世界主要发达国家和地区十分重视科技资源共享的立法保障.在我国科技资源共享立法策略方面,应当从立法宗旨、基本原则、立法模式等方面入手,不断推进我国科技资源共享立法工作的进行.     

企业项目管理的复杂性特征研究

复杂项目及项目管理的复杂性是项目管理研究的新领域。把复杂性理论引入项目管理的研究,从复杂性理论角度,阐述了企业实施项目管理的必要性,企业项目管理的结构复杂性、要素复杂性、过程复杂性、关系复杂性、环境复杂性、人力资源管理的复杂性、客户管理的复杂性等特征,以及在企业项目管理中实施有效的复杂性管理的要求等问题。认为企业项目管理应该高度重视复杂性,把复杂性当作复杂性看待,实施项目的复杂性管理。     

学术期刊版面费争议述要

版面费自从在我国诞生以来,就引起了广泛的争议.在反对论者眼里,版面费的收取弊端丛生,应该禁止;而在支持论者看来,版面费尽管有一些负面因素,但它有存在的合理性和必要性.梳理版面费的诸多是是非非,以期全面把握版面费的利弊得失.     

Fractional order sliding mode control of a pneumatic position servo system

Gas flow has fractional order dynamics; therefore, it is reasonable to assume that the pneumatic systems with a proportional valve to regulate gas flow have fractional order dynamics as well. There is a hypothesis that the fractional order control has better control performance for this inherent fractional order system, although the model used for fractional controller design is integer order. To test this hypothesis, a fractional order sliding mode controller is proposed to control the pneumatic position servo system, which is based on the exponential reaching law. In this method, the fractional order derivative is introduced into the sliding mode surface. The stability of the controller is proven using Lyapunov theorem. Since the pressure sensor is not required, the control system configuration is simple and inexpensive. The experimental results presented indicate the proposed method has better control performance than the fractional order proportional integral derivative (FPID) controller and some conventional integral order control methods. Points to be noticed here are that the fractional order sliding mode control is superior to the integral order sliding mode counterpart, and the FPID is superior to the corresponding integral order PID, both with optimal parameters. Among all the methods compared, the proposed method achieves the highest tracking accuracy. Moreover, the proposed controller has less chattering in the manipulated variable, the energy consumption of the controller is therefore substantially reduced.     

Convergent genomic signatures of high-altitude adaptation among domestic mammals

Abundant and diverse domestic mammals living on the Tibetan Plateau provide useful materials for investigating adaptive evolution and genetic convergence. Here, we used 327 genomes from horses, sheep, goats, cattle, pigs and dogs living at both high and low altitudes, including 73 genomes generated for this study, to disentangle the genetic mechanisms underlying local adaptation of domestic mammals. Although molecular convergence is comparatively rare at the DNA sequence level, we found convergent signature of positive selection at the gene level, particularly the EPAS1 gene in these Tibetan domestic mammals. We also reported a potential function in response to hypoxia for the gene C10orf67, which underwent positive selection in three of the domestic mammals. Our data provide an insight into adaptive evolution of high-altitude domestic mammals, and should facilitate the search for additional novel genes involved in the hypoxia response pathway.     

基于ANSYS的卡车燃油箱结构强度分析

卡车燃油箱是燃油供给系统的核心部件,其设计研发主要依靠工程师的经验来完成,产品更新速度慢,成本高.结合现代化设计方法利用三维软件UG设计出卡车油箱的三维结构模型,然后利用有限元方法对卡车燃油箱结构进行应力应变分析,求出卡车油箱的最大应力值σmax为319.237 MPa,最大应变值εmax为13 mm,为卡车油箱的设计修改提供理论参考依据.大大降低了卡车油箱的设计成本,提高了产品研发效率.     

河南省师范类院校大学生兼职情况的调查与分析

随着社会竞争日趋激烈,大学生就业形势日益严峻,面临着高校收费体制改革和用工单位对工作经历青睐的双重压力,越来越多的在校大学生利用课余时间走出校园,走入社会,从事兼职工作。调查发现,师范院校大学生参与兼职存在兼职大学生的正当权益得不到保障、兼职渠道较少、兼职种类单一、兼职的目的性不强、兼职与自身专业相关程度较低等问题。文章应用成因分析从国家、学校和学生自身三个层面寻找解决问题的对策,使每个兼职大学生都能在兼职过程中有所收获、提升自我。     

基于BIM的结构钢筋与机电系统翻模研究——以福州市规划院产业楼为例

基于建筑信息模型（Building Information Modeling, BIM)）概念,以福州市规划设计研究院新建大楼为实际案例,应用Autodesk Revit软件将原有CAD图纸进行BIM结构钢筋和机电模型建置,并提出BIM技术虚拟仿真过程中发现的问题。研究结果表明:（１）BIM技术可实际解决工程常常出现钢筋复杂节点、机电管道碰撞的问题;（２）机电系统进行Revit翻模时,不能按原CAD路径绘制,族库不全需建族完善。该研究成果可为后期施工决策提供技术支持,并有助于相关行业人士学习与借鉴。