查询词典 systems engineering

Techniques against information obscurity Disassemble, decompile, or reverse engineering Fault injection – the technique of providing a program input that it does not expect. Fuzzing – the attacker's process of systematically trying various input string that may result in an exploit. Blackmail or buy off insiders. If you want your systems to be more secure, you may want to assume that the attacker knows exactly how the target system works.

用来对付资讯隐匿的技术反组译、反编译、或逆向工程错误注入–提供程式不受预期的输入模糊化–攻击者透过系统化的方式尝试各种输入的组合，其结果可能导致成功的攻击威胁或是收买内部人员如果你希望系统更加安全，你必须假设攻击者针对系统的了解跟你一样深入。

Br-automationAs industrial automation systems become increasingly complex, software development time and engineering expenses can exceed all other development hurtles.

本文介绍了西门子 S7-400H 冗余系统在化纤纺丝系统中的配置方案，工业以太环网及WINCC在监控系统中的应用。

ABSTRACT Motived by the status of theoretical studies and the requirements of engineering applications in the fuzzy control system, the characters of fuzzy logic systems are analyzed, the mathematic model of a class of fuzzy logic system is built, especially the ways how to use the model to identify the nonlinear dynamic system and design the adaptive control system are researched deeply in this paper.

本论文根据模糊控制理论研究的发展现状、存在的主要问题以及工程实际应用的基本要求，分析了模糊逻辑系统的特性，建立起一类模糊逻辑系统的数学模型，并对其用于非线性动态系统辨识与自适应控制系统设计方法等方面进行了深入的研究，为解决某些传统方法难以解决的工程实际问题提供了新的思路。

Army Research, Development and Engineering Command Acquisition Center, Aberdeen Proving Ground, Md., has awarded General Dynamics Armament and Technical Products a ＄34 million contract option for production, testing and field support packages for Joint Biological Point Detection Systems.

位于马里兰州Aberdeen试验场的美国陆军研究发展和工程指挥采集中心已授予通用动力装备与技术产品公司价值3400万美元的合同，为联合生物点源检测系统生产、测试和派出支持。

In recent decade, because of the fact that factional calculus could model various physical systems more adequately than integer one, it has attracted much attention in numerous areas of signal processing, chaos, viscoelastic damping, friction, biological engineering, fluid mechanics, diffusion, financial analysis and so on.

最近十年来，由于分数阶微积分可以更好地解决物理系统建模问题，分数阶微积分理论在众多科学工程应用领域得到的极大关注，包括信号处理、混沌、粘弹性阻尼、摩擦力、生物工程、流体、扩散和金融分析等。

Company employs more than 600 people, has a former aeronautical systems engineer for the main cast of professional teams, engineering and quality management personnel for nearly 20 people, with more than one CNC computer numerical control machining center and other advanced tooling equipment and other precision casting by the exclusive use of advanced radio wax machine, dip slurry barrels dewaxing boiler burning shell furnace, smelting furnace, shot blasting machine and other production equipment, with annual production capacity of 600 tons of castings.

公司拥有员工六百余人，拥有一支由原航空系统精铸高级工程师为主体的专业队伍，工程技术和品质管理人员近20人，具备多台CNC数控电脑加工中心等先进制模设备及其它精密铸造所专用的先进射腊机，沾浆桶，脱腊锅炉，烧壳炉，熔炼电炉，抛丸机等生产设备，具备年产600吨铸件的能力。

The suitable reaction conditions are determined by thermal analysis for grafting systems via reactive extrusion technology. The grafted structure and grafted ratio are determined and tested by infrared spectrometry and chemical tritration method. The reaction mechanism, by-reaction inhibition, effect of initiator, and monomer on grafted products are studied extensively. Polyethylene grafted with maleic anhydride, as the hot melt adhesive for the aluminum-plastics compound pipe, is also studied as a goal for engineering application.

对反应挤出接枝体系进行了热分析，确定了合理的反应挤出工艺条件：用红外光谱和化学滴定的方法分别对接枝结构和接枝率作了定性表征和定量测定；对三种反应挤出体系的反应机理和副反应的抑制，以及引发剂、单体对接枝产物的影响进行了深入系统地研究；对PE接枝MAH作为铝塑复合管的热熔胶进行了工程化应用研究。

Welcome to PRS , a leader in engineering, manufacture, service and support of high precision cylindrical cross roller bearing, taper cross roller bearing, wire race bearing, thin section ball bearing, eccentric combined bearing used in print machine, slewing rings etc from ID 100mm to 5500mm. PRS uses CAD, PDM, etc software and ERP, CRM, PROE, etc Management systems to better meet more expanding needs in recent years. At PRS, we realized that today competitive demand more than just products. That why, our engineers would only take half busines day to provide a primary drawing and answer variety of questions according to customers' requirements. In addition, we offer a variety of technical development and design in standard or nonstandard products. Our product sales engineers will provide in-time and correct price reply service within one hour for the worldwide customers.

我们拥有强大的技术开发能力，能够设计、生产各种标准和非标准产品，这种强大的技术开发能力造就了我们在精密圆柱交叉滚子轴承、精密圆锥交叉滚子轴承、钢丝跑道轴承、等截面薄壁球轴承、印刷机专用高精度偏心组合轴承、回转支承及其他产品领域中一直处于国内领先地位；近年来我们使用CAD、PDM、PROE等产品设计辅助工具和ERP、CRM等管理系统，不断提高我们工作的质量和效率，工程技术人员可以在半个工作日内为用户提供初步的设计方案，能够随时为用户解决各种疑难问题；同时我们产品销售工程师最快能够在1个小时内对全球用户询求的常规产品作出准确的价格回复。

It is very important to predict the efficiency and safety of pedestrians in MTR hubs in planning and designing such systems. How ever, the design and appraisal of such hubs were based on static and experience method traditionally. It has lots of pitfalls in engineering and theory, such as lack of design criteria, disability in estimating the mustering and evacuation efficiency of the station, little cognition on the relationship between passenger and traffic etc.

然而，目前国内外在这类枢纽的设计和评价上依然主要依靠静态的经验估计办法，无论在工程实践上还是相关理论上都存在着一些不足：枢纽设计标准缺乏科学依据、枢纽的集散效率和服务水平无法准确衡量、对乘客和交通环境的关系认识不清楚等。

Was one of the greatest engineering feats of ancient times. In ancient Rome, engineers built large aqueducts and bridgesand vast systems of roads.

公元前26世纪，在吉扎建造的巨大的埃及金宇塔是古代最伟大的工程奇迹之一在古罗马，工程师建造了巨大的水渠，桥梁和许许多多的公路系统。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。