英语原文共 14 页， 表征含有二氧化硅纳米颗粒和橡胶颗粒的复合层压材料的振动阻尼响应 黄建阳和蔡家林 摘要： 本研究旨在研究含不同程度的纳米二氧化硅和橡胶颗粒的纤维/环氧复合材料的阻尼性能。传统上，在纤维/环氧复合材料中加入橡胶颗粒会使其刚度大幅度降低，但可以相应地改善振动阻尼。为了提高纤维复合材料的阻尼性能，在不牺牲刚度的前提下，通过超声处理将二氧化硅纳米粒子和橡胶粒子引入环氧树脂中。然后将环氧树脂作为基体，通过真空手糊工艺浸渍到纤维层中，形成复合材料层合板。用强迫振动技术和半功率法测量了纤维复合材料的振动阻尼和弯曲刚度。此外，采用微机械分析方法对由纳米二氧化硅和橡胶颗粒组成的复合材料层合板的振动阻尼进行了表征。采用基体中随机显示的重复单元来表征�

英语原文共 20 页， 屈曲 大多数复合结构是薄壁的。这是以下事实的自然结果： －复合材料比传统材料更强。它可能用很小的面积来承载很高的负荷，并且它是厚度很小的组件。 －与传统材料相比，复合材料价格昂贵。因此我们尽量去减小它的体积，并尽可能去减少其厚度。 －聚合物基质复合材料的成本随着它们的刚度而增加。该纤维方向上的刚度可以通过使用纤维占比来估计，E1 = EfVf。例如，当玻璃纤维与聚合物基体结合在一起时，由此产生的复合刚度低于铝。使用芳族聚酰胺的硬度相当于铝。 碳纤维产生的复合材料刚度低于钢材。因此，有强大的无需增加梁和加强筋惯性矩的动机增加横截面积。 最好的选择是增加时间通过扩大横截面尺寸和减小厚度来提高惯性。 所有上述因素常常导致设计具有较大的复合结构�

英语原文共 9 页， 喷雾干燥中的干燥过程及仿真模型的建立 Imrich Orlovskyacute; ，男，博士1,a ；Michal Hatala，男，副教授, 博士.2,b；Milan Mičko，男3,c 1斯洛伐克共和国普雷绍夫市柯西策技术大学（普雷绍夫分校）生产技术系 2斯洛伐克共和国普雷绍夫市柯西策技术大学（普雷绍夫分校）生产技术系 3斯洛伐克共和国普雷绍夫市柯西策技术大学（普雷绍夫分校）生产技术系 a imrich.orlovsky@tuke.sk, bmichal.hatala@tuke.sk, cmilan.micko@tuke.sk 关键词：干燥，造粒，仿真 摘要：本文所描述的是喷雾干燥过程，针对该过程建立了一个干燥的数学模型。该模型允许在整个干燥过程中进行识别和定义，其输出结果是一个平衡方程式。这次仿真的对象是陶瓷颗粒的生产过程，然后在Matlab程序软件中建立一个仿真模型——Simulink，其依据是根据能�

英语原文共 183 页， 英语原文共 16 页，资料编号：[10374]，资料为PDF文档或Word文档，PDF文档可免费转换为Word

History James Gosling, Mike Sheridan, and Patrick Naught-on initiated the Java language project in June 1991.Java was originally designed for interactive television, but it was too advanced for the digital cable television industry at the time. The language was initially called Oak after an oak tree that stood outside Gosling#39;s Office; it went by the name Green later, and was later renamed Java, from a list of random words. Gosling aimed to implement a virtual machine and a language that had a familiar C/C style of notation. Sun Microsystems released the first public implementation as Java 1.0 in 1995. It promised 'Write Once, Run Anywhere”(WORA), providing no-cost run-times on popular platforms. Fairly secure and featuring configurable security, it allowed network- and file-access restrictions. Major web browsers soon incorporated the ability to run Java applets within web pages, and Java quickly became popular. With the advent of Java 2 (released initially as J2SE 1

Title: Business Applications of Java. Author: Erbschloe, Michael, Business Applications of Java -- Research Starters Business, 2008 DataBase: Research Starters - Business Business Applications of Java This article examines the growing use of Java technology in business applications. The history of Java is briefly reviewed along with the impact of open standards on the growth of the World Wide Web. Key components and concepts of the Java programming language are explained including the Java Virtual Machine. Examples of how Java is being used by e-commerce leaders is provided along with an explanation of how Java is used to develop data warehousing, data mining, and industrial automation applications. The concept of metadata modeling and the use of Extendable Markup Language (XML) are also explained. Keywords Application Programming Interfaces (API#39;s); Enterprise JavaBeans (EJB); Extendable Markup Language (XML); HyperText Markup Language (HTML); HyperText Transfer

International Journal of Knowledge Management Volume 12 bull; Issue 4 bull; October-December 2016 Participative Knowledge Management to Empower Manufacturing Workers Gianni Campatelli, University of Firenze, Firenze, Italy Alexander Richter, IT University of Copenhagen, Denmark and University of Zuuml;rich, Switzerland Alexander Stocker, Virtual Vehicle Research Center, Department of Information and Process Management, Graz, Austria ABSTRACT Due to the rapid technologic change, we see the role of manufacturing workers continuously changing: the increasing automation of manufacturing processes has reduced the amount of manual work, whereas the increasing complexity of manufacturing systems requires workers to build-up broader and deeper skills. In this paper, the authors suggest a participative knowledge management approach to empower manufacturing workers. Starting from a comprehensive empirical analysis of the existing work practices in a manufacturing c

An Overview of Servlet and JSP Technology Gildas Avoine and Philippe Oechslin EPFL, Lausanne, Switzerland HISTORY OF JSP The Java Server Pages( JSP) is a kind of according to web of the script plait distance technique, similar carries the script language of Java in the server of the Netscape company of server- side JavaScript( SSJS) and the Active Server Pages(ASP) of the Microsoft. JSP compares the SSJS and ASP to have better can expand sex, and it is no more exclusive than any factory or some one particular server of Web. Though the norm of JSP is to be draw up by the Sun company of, any factory can carry out the JSP on own system. The After Sun release the JSP( the Java Server Pages) formally, the this kind of new Web application development technique very quickly caused the people#39;s concern. JSP provided a special development environment for the Web application that establishes the high dynamic state. According to the Sun parlance, the JSP can adapt to inc

How much do firms hedge with derivatives? WayneGuayaS.PKothari 1. Introduction Corporate risk management is an important element of a firm#39;s overall business strategy. Stulz (1996, pp. 23–24) draws upon extant theories of corporate risk management to argue “the primary goal of risk management is to eliminate the probability of costly lower-tail outcomes—those that would cause financial distress or make a company unable to carry out its investment strategy”.1 Financial derivatives, including currency, interest rate, and commodity derivatives, are one means of managing risks facing corporations. With the exception of industry studies such as Tufano (1996) or detailed case studies as in Brown (2001), previous research analyzes either categorical data indicating whether corporations use financial derivatives, or data on the notional principal of corporate derivative positions, to test whether corporate uses of derivatives accord with corporate risk-managem

英语原文共 16 页， 玻璃熔窑燃烧空间传热模拟 辐射在燃烧空间传热中起主导作用。它由三部分组成，即气态辐射、烟尘辐射和冠层表面辐射。模型验证和后续炉膛运行的研究基础是辐射热流的空间变化。海斯和他的同事沿熔窑中心轴对冠层入射辐射热流进行了测量并建立了一个数值模型。然而，烟灰的影响并没有被量化。本文建立了考虑烟灰效应的数值模型。并利用FLUENT进行了仿真。该模型与海斯及其同事的实验数据在-6%到 14%的误差范围内相吻合。 关键词：燃烧，烟尘，CFD，熔炉 1.前言 高热效率和低排放是现代工业炉设计的两个关键参数。为了满足这两个相互竞争的目标，需要更好地理解燃烧和其他运输过程，并建立一个精确的模型来预测工业玻璃熔炉中的燃烧行为。在熔炉中熔制工业玻璃涉及到用于熔融批料以获�