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附录B 外文原文 Geographic information systems and science: today and tomorrow Michael F. Goodchild University of California, Santa Barbara, CA 93106-4060, USA Abstract Geographic information is defined as information linking locations on or near the Earthrsquo;s surface to properties of those locations. The technologies for handling such information include GPS, remote sensing, and geographic information systems. Behind the technologies are a set of fundamental, researchable issues whose study has been termed geographic information science. I review these technologies under four headings: positioning, data acquisition, data dissemination, and analysis. Recent research has led to substantial advances in specific areas of GIScience. I outline five future scenarios that are all technically feasible given current technology, and discuss the research advances that will be needed to make them a reality. In the conclusion I comment on the changing needs of educati
Integrated logistic and inventory model for a two-stage supply chain controlled by the reorder and shipping points with sharing information Yu-Cheng Hsiao Abstract This study investigated the integrated stochastic inventory problem for a two-stage supply chain consisting of a single retailer and a single supplier. By using batch shipment policy, the expected total cost can be significantly reduced. Equally sized batch shipment models, controlled by both the reorder and the shipping points with sharing information, variable safety factors, are constructed. The problem is solved optimally by the proposed algorithms that determine the economic lot size, the optimal batch sizes, number of batches, and safety factor. A numerical example is included to illustrate the algorithmic procedures and to prove that the model controlled both by the reorder and by the shipping points is superior to the classic model controlled only by the reorder point. Sensitivity analyses are
英语原文共 9 页, 基于GPS和GSM技术的汽车实时生物识别系统 摘要 在当今世界,科技日新月异,科学研究人员正呈现新的发现时代,对安全的需求也在各个领域不断增加。目前,车辆的使用是每个人的基本需要。同时,保护车辆防盗也非常重要。传统的车辆安全系统依赖于多种传感器,成本也很高。当车辆被盗时,无法再作出反应或采取其他办法帮助车主找到车辆。本文的主要目的是保护车辆不受任何非法进入,采用快速、易用、清晰、可靠、经济的指纹识别技术。此车辆安全系统使用全球移动系统(GSM)通信技术将车辆状态告知权威人士(车主)。如果此人获得认证,则允许车辆进入。否则,将向车主发送短信,发动机将被锁定。安全系统的原型模型是在嵌入式平台上用PIC单片机建立的,它控制了所有的过程,成本也很低。
英语原文共 12 页, FM0/曼彻斯特编码在DSRC中的应用 M. Abinaya #1, T. Suganya Thevi #2 1 PG Student, PSNA College of Engineering and Technology, Dindigul, India 2 Assistant Professor, PSNA College of Engineering and Technology, Dindigul, India. 摘要:专用短程通信是专门为汽车和相应的协议与标准使用的单向或者双向短距离到中距离的无线通信技术。专用短程通信是一种推进智能交通系统进入我们日常生活的新兴技术。DSRC标准采用FM0和曼彻斯特规范,达到直流平衡,提高信号可靠性。在电路中相似型逻辑简化(溶胶)技术在FM0编码和曼彻斯特编码中都有集成。在本文中,命名为供应电压缩放和功率门控技术的低功耗技术在降低整体功耗和FM0曼彻斯特编码电路中被建议使用。通过使这些技术,对使用SOLS的FM0 /曼彻斯特编码的功耗将会降低。编码可以完全支持美国、欧洲
英语原文共 15 页, 工业4.0设计准则 摘要:尽管目前对于许多公司、研究所和大学是首要任务,但工业4.0并没有一个被广泛接受的定义。因此,无论是在学术的层面上讨论这个话题,还是具体地实现工业4.0所设计的场景都有困难。基于文献阅读,本文提供了工业4.0的定义并为其实践识别出了六项设计准则:互用性、虚拟化、分布式、实时性、服务向与模块化。这些准则能使学者们更深入地研究这个问题,为实践者在实践中提供方向。 1介绍 工业4.0是目前在德语地区(Dais, 2014, p. 625; Drath amp; Horch, 2014, p. 56)工业界与学界被讨论最频繁的话题之一。自从2011年(Kagermann, Wahlster, amp; Helbig, 2013, p. 77)德国联邦政府宣布工业4.0为其科技发展战略中的关键举措以来,许多论文文章及会议都针对这一问题发表了看法(Bauernhansl, Hompel, amp; Vogel- Heuse
英语原文共 14 页, 智能界面设计:布局组织适应美国人的和韩国人的认知风格 Kyeong-Ah Jeong,1Robert W. Proctor,1and Gavriel Salvendy1,2 1 School of Industrial Engineering and Department of Psychological Sciences, Purdue University, West Lafayette,IN 47907, USA 2 Department of Industrial Engineering, Tsinghua University, Beijing 100084, P.R. China 摘要 家用电器和拥有RFID标签的设备数量的增加,在考虑居民使用时,已经创建了一个需要高效的智能界面组织。先前信息群和文化差异的认知风格的研究对性能都取得了好坏参半的结果。通常对性别没有进行区分,也没有测量主观偏好。我们测试了四个参与者组(美国和韩国的男性和女性)和两个接口分组(功能和空间)。参与者执行的任务:要求定位为特定的设备/控制功能,之后他们评价几个尺度的接口。美国男性首选功能性组织,但朝鲜和美
利用寻找失踪人员的策略实现移动机器人的高效再定位 摘要:蒙特卡罗定位(MCL)在极端干扰下可能无法定位任意移动的移动机器人。受寻找失踪人员策略(Strategy of Find a Missing Person,SFMP)的启发,本文提出了一种高效的再定位解决方案,以提高恢复速度和成功率。通过优化随机粒子生成的分布和数量,所提出的基于SFMP的再定位保证了粒子在机器人再次出现的位置存在,提高了MCL的鲁棒性。首先,设计了一个关键的搜索空间选择来寻找机器人可能出现的位置。然后,构造一种新的移动距离图来表示从绑架点到其他点的位移,从而根据机器人可能的移动距离缩小搜索空间。此外,提出了一种时变的长短期策略来调整随机粒子的比例,并自适应地调整粒子数目。通过真实场景实验,验证了该方法的有效性。 关键词:蒙特卡罗定位,
英语原文共 14 页, 英语译文共 15 页, 资料编号:[237778],资料为PDF文档或Word文档,PDF文档可免费转换为Word
英语原文共 8 页, 英语译文共 7 页, 资料编号:[603412],资料为PDF文档或Word文档,PDF文档可免费转换为Word
Design of quality traceability system for a kind of electromechanical products based on OPC Lu-lu ZHOU School of Computer,Chongqing College of Electronic Engineering; Abstract: Aimed at the puzzle of being difficult to carry through the quality traceability for the unqualified products resulted in a great variety of electromechanical products, the paper designed a kind of quality traceability system of electromechanical products based on OPC. In the paper, it pointed out the complexity and technology difficulty of product quality tracing, discussed on the technical specification, the essence of technology, the principle of data exchange and the data access interface, researched on the framework of product quality traceability system, and designed a quality traceability system of electromechanical products based on OPC. Taken the interconnection of monitoring software system as an example, it built the system which demonstrated that the seamless integration of hete
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