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英语原文共 7 页, 用于JAVA DOOCS数据显示的HTML5 WEB界面 摘要 JAVA DOOCS数据显示(JDDD)[1]是标准开发用于FLASH的控制系统面板的工具 设施和欧洲XFEL。面板主要是在DESY校园开始。用于远程监控和专家协助安全,快速和轻量级访问方法是必需的。一个可能的解决方案是使用HTML5作为传输协议,因为它可用 许多常见平台,包括移动平台。出于这个原因,运行一个HTML5版本的JDDD在Tomcat应用程序服务器中开发。WebSocket技术用于传输面板图像到浏览器。另一方面,鼠标事件是 从浏览器发送回Tomcat服务器。现在可以从中访问数千个现有的JDDD面板远程使用标准网络技术。没有特别的浏览器插件是必需的。 本文讨论了基于web的一般问题与控制系统的交互,例如安全性,可用性,网络流量和可扩展性,并呈现WebSocket方法。 介绍 JD
英语原文共 10 页, 用纳米ATO作为添加剂合成导电油脂 Xiangyu GE,Yanqiu XIA,Zongying SHU,Xiaopei ZHAO 华北电力大学能源动力与机械工程学院,北京102206 收到日期:2014年11月17日/修订日期:2015年1月11日/接受日期:2015年1月21日 copy;作者2015。本文在Springerlink.com上以开放访问的形式发布 摘要:采用纳米粉体合成了一种新型导电脂,用Sb掺杂SnO2(ATO)作为添加剂。对这种新型导电脂的典型性能进行详细研究,结果表明ATO能显著改善滴点,降低接触电阻。使用mft-r4000往复摩擦磨损试验机进行新型导电润滑脂摩擦学性能研究,摩擦学试验结果表明,ATO可以大大提高润滑油的摩擦学性能。当ATO浓度为0.1wt%,油脂展示最好的润滑性能;当浓度为0.5wt%时,润滑脂的抗磨性能的最好。磨损的表面是用扫描电子显微镜和能量色散x射线能谱仪进行观
英语原文共 14 页, Using Constraint Programming and Local Search Methods to Solve Vehicle Routing Problems Paul Shaw Department of Computer Science, University of Strathclyde, Glasgow. April 1998 利用约束规划和局部搜索方法解决车辆路径问题。 保罗·肖 计算机科学部门, 斯特拉思克莱德大学,格拉斯哥。 1998年4月 Abstract We use a local search method we term Large Neighbourhood Search (LNS) for solving vehicle routing problems. LNS meshes well with constraint programming technology and is analogous to the shuffling technique of job-shop scheduling. The technique explores a large neighbourhood of the current solution by selecting a number of customer visits to remove from the routing plan, and re-inserting these visits using a constraint-based tree search. We analyse the performance of LNS on a number of vehicle routing benchmark problems. Unlike related methods, we use Limit
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英语原文共 106 页, 资料编号:[11797],资料为PDF文档或Word文档,PDF文档可免费转换为Word
OLE Component Object Model 0 Intended Use OLE (and its Component Object Model) provide a basis for application interoperation in the Microsoft Windows environment. 1 Basic Concepts Microsoft#39;s OLE provides an application integration framework for Microsoft Windows. OLE defines the Component Object Model, which specifies a programming-language-independent binary standard for object implementations (i.e., it specifies what the implementation of the objects has to look like). Any object conforming to this standard is a legitimate Windows Object, no matter what language is used to implement it. The programming model is synchronous, based on a 'Lightweight Remote Procedure Call' (lightweight because, at least at the moment, the calls are not really remote; they are all made on one machine). In the Component Object Model, the concept of interface assumes great importance. An interface is 'a set of semantically related functions implemented on an object' [Bro94a]. Th
英语原文共 18 页, 传感器 进给驱动器使用位置,速度,加速度和载荷传感器来提高其定位精度和响应带宽。 这里使用最广泛的传感器以及相关的性能。 位置测量 为了精确定位刀具在工件上的位置,需要测量进给驱动器的绝对位置。 工作台位置是使用机床中的光学编码器直接测量的。 激光干涉仪方法用于为光学,电子线路或机器制造而设计的精密机器。 旋转编码器或同步旋转编码器正在测量旋转伺服电机轴,以便从电机轴的角度位置间接测量工作台的位置。 光学编码器基于通过玻璃或金属光栅传输或反射光的原理。 使用光源和光检测器阵列来感测包含等间距反射光栅的移动编码器盘或标尺的位置。 绝对编码器具有二进制(灰色或伪随机)编码绝对位置。 增量式编码器有一个额
BIMHandbook Chapter 8 The Future:Building with BIM By Chuck EastmanPaul TeicholzRafael SacksKathleen Liston Summary:BIM is not a thing or a type of software but a human activity that ultimately involves broad process changes in construction.A wide variety of owners demand BIM use. Many large owners have developed contract terms and detailed guides for their design and construction service providers. New skills and roles are developing. Almost universally positive return on investment values have been reported by both design fi rms and construction contractors, with those actively measuring return on investment reporting that it exceeded their initial estimates. A survey conducted in early 2007 found that 28 percent of the U.S . AEC industry was using BIM tools; that number had grown to 49 percent by 2009. In 2007, only 14 percent of users surveyed considered themselves to be expert or advanced. By 2009, 42 percent did.In the period from 2007 to 2010, contractors were the f
8.4 VISION 2015Abstract:Recent years have witnessed the realization of many of the ideas of BIM visionaries, and the next five years will see increasing numbers of successful implementations, changes in the building industry, and new trial uses and extensionsof what can be achieved with BIM, beyond its use today. This period will seethe transition of BIM to accepted mainstream practice; and the transition willimpact all building professionals and participants. But the greatest impact will be on the individual practitioner, who will need to learn to work, design, engineer, build, ormanage with BIM.8.4.1 Impact on Owners: Better Options, Better ReliabilityOwners will experience changes in the quality and nature of services availableand an overall increased reliability of the project budget, program compliance,and delivery schedule. Many owners are already experiencing this. Advancedowners are leading their project teams to adapt and expand their BIM-relatedservices. Chapter 4 and several
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