装卸搬运机械设备配置优化研究

装卸搬运活动伴随着物流的始终,成为提高物流效率、降低物流成本、改善物流条件、保证物流质量最重要的物流环节之一。文中以武汉市中小物流企业为载体,对企业中的装卸作业能力进行调研,着重分析机械作业能力与现场作业量之间最佳配合状态,通过数据计算和综合费用分析,确定最佳装卸机械配套方案,用于企业配置装卸机械能力的实践。     

基于组态软件机械手监控系统的研究

研究了组态软件在机械手图形监控系统中的应用,通过PLC实现机械手的自动控制系统。基于组态软件设计出图形监控人机界面,实现图形动画连接,机械手的监控。通过组态软件实现机械手的动作过程图形动画演示,使机械手的动作形象化。提供较为直观、清晰、准确的机械手运行状态,充分提高系统的工作效率。     

基于PLC和组态王的水塔水位自动监控系统

水位的测量和控制在日常生活中有着广泛的应用。本文采用PLC实现信号的采集与控制,应用组态王软件对接收到的信号进行数据处理,实现水塔水位显示、报警信息显示、实时曲线、历史曲线显示,使得水泵在水塔水位过低的时候自动工作抽水,水位到达上限值时自动停止抽水。该系统在提高劳动生产率,降低能耗等方面具有重要的现实意义。     

基于以太网技术的空压机远程监控系统的设计

本文在系统分析基于网络的远程监控、组态王软件特点和空压机的工作过程的基础上,提出了一种用工业控制机结合以太网络技术实现空气压缩机远程监控的低成本解决方案。介绍在工业环境中,利用工业组态软件—组态王软件,配合西门子S7-200PLC实现远程通信,采用MODBUS实现PLC与空压机之间的通讯的原理,设计了一种基于以太网络的空压机站的远程在线实时监控系统。通过以太网对空压机的运行状态、运行过程进行远程自动监控和故障诊断处理,实现了无人值守、远程监控和管理控制一体化。目前该系统已应用于江苏通鼎光电股份有限公司,实际运行结果表明,系统运行稳定,操作方便,能有效减少设备维修量,并具有较好的可靠性和鲁棒性,很好的实现了监控和管理自动化。     

The HR quadriad: a framework for the analysis of HRM in project-based organizations

This paper introduces the idea of the ‘HR quadriad’ as a framework for the analysis of HRM as a collective, configurational, and complementary system of roles and practices. The framework highlights the interplay between HR specialists, line managers, project managers, and project workers in the implementation of HR practices. On the basis of a multiple case study comprising six project-based organizations, two organizational factors are singled out as important for the design of the HR quadriad: (1) the nature of project work as either intra-functional or inter-functional, and (2) project participation as either focused or fragmented. The paper gives empirical support to recent research on HRM favoring the synergic integration of the elements of HRM systems designed in a way that acknowledges internal coherence and organizational conditions.     

现行建筑物电源SPD典型配合配置分析

为了解决建筑物电源系统安装SPD的配合配置问题,本文根据现行建筑物电网的TT系统、TN系统、IT系统等典型供配电系统,结合现行电源SPD的安装方式及参数选型,针对Uc、Up、Iimp、过电流保护器等重要参数设备选择失当,SPD安装位置错误,所造成的电源SPD电气故障模式或保护失效,得出了现行电源SPD的配合配置失当问题,并初步提出了解决方法。     

基于QCA方法的水权交易信用体系构建

基于我国水权市场特点,研究如何构建水权交易信用体系问题。选择北方地区、南方地区共12个水权交易典型案例,采用QCA即定性比较分析方法,从技术层面、制度层面和文化层面提取影响水权市场信用体系的关键因素,从改进监控技术、完善信息披露制度、明确评价标准、加大奖惩力度、做好文化宣传等方面提出对策建议。     

商品贸易结构变动对劳动收入份额的影响

本文从贸易结构变动出发为研究我国劳动收入份额变动的原因提供一种新的视角。近年来我国商品贸易结构发生了重要变动。理论分析表明,对外贸易不仅通过国际分工和专业化对劳动收入份额产生直接影响,还通过要素密集度变化和技术进步偏向等机制产生间接影响;实证研究发现,出口发展对我国劳动收入份额具有显著的负向作用,进口发展则具有正向作用。进出口贸易对不同要素密集度行业的影响程度与方向存在差异。     

The contribution of Project-based-learning to high-achievers’ acquisition of technological knowledge and skills

The main goals of this study were to look after the technological knowledge construction process by high-school high-achievers, and their ability to design and implement solutions for technological problems. More specifically, we examine the contribution of Project-based-learning (PBL), as pedagogical means for supporting the students’ knowledge acquisition and problem-solving process. The findings show a significant increase in formal knowledge as measured by standardized matriculation exams; an expansion in the scope of technological knowledge acquired and implemented, and in the scope of knowledge resources utilized for the projects; a high level of overall performance as regards to the set of design skills studied; a positive change in attitude towards technology and technological studies; the emergence of consistent design styles by individuals and groups along their work in the projects.     

Researching cognition and technology: how we learn across the lifespan

This article addresses how we learn technology across the lifespan. After outlining findings of research into how children, adolescents, teens and adults learn technology, we address theoretical shifts from sociocultural to technocultural theories of cognition and reorientations from mediated to cyborgenic learning. The balance of the article describes effective methods for researching cognition and technology. In the process of outlining key findings from research, we emphasize the links among methods and theories employed, data produced and conclusions drawn. Our goal is to sketch a lifelong learning context for undertaking studies of cognition and technology, and to provide a methodological and theoretical analysis for researchers venturing into this dynamic and volatile field. In summary, we provide a far-ranging agenda for researching cognition and technology.