英语原文共 10 页， 具有抗磨损性能的生物感应耐用超疏水材料由石英砂和有机硅烷制成 刘珊珊，金美禾，冯烽，姚雅莉，侯冬刚，马雪瑞 摘要 在这项研究中，我们提出了通过使用有机硅烷表面官能化的石英砂颗粒制造耐用超疏水材料的策略。石英砂颗粒与二乙氧基二甲基硅烷和三乙氧基甲基硅烷紧密结合以增强材料的机械性能。所得材料具有超疏水性，水接触角为158plusmn;1°，具有自清洁能力。此外，该材料可以承受6H铅笔硬度测试，并且可以在浸入试验和机械力的极端环境条件下保持稳定的超疏水性。扫描电子显微镜和水接触角测量被用来描述形态特征并通过傅里叶变换红外分光光度计和X射线光电子能谱仪确定材料的化学组成。成功的利用耐用超疏水材料可以生产用于各种实际应用。 介绍 最近，由于有关学术研�

英语原文共 14 页， 倒塔式起重机连接螺栓失效分析 S. KIM1 and S. K. CHOI2 韩国首尔市阳川区新光七洞洞331-1 国家法医服务处158-707韩国2G.W. 乔治亚州伍德拉夫机械工程学院 美国佐治亚州亚特兰大技术学院 2012年5月16日以最终形式收到 摘要：塔式起重机的使用可能在大型建筑施工中造成严重的项目事故。塔式起重机发生故障会导致起重机操作人员严重受伤或伤到建筑工地的其他工人。起重机包括桅杆（或塔）和转台部件以及塔式起重机回转支撑的损坏和断裂，通常会导致塔楼倒塌等致命问题。如果没有经过系统的调查和适当的预防程序预防到位，这种通常会导致工人死亡的起重机事故将继续发生。因此，需要在法医工程方面进行更积极主动专业化和系统化的研究，以尽量减少事故和类似灾难的发生。在这项研究中，对�

英语原文共 5 页， 用于高性能有机太阳能电池的具有梯型骨架的新型非富勒烯电子受体 因未来可再生能源转换的替代品成本低，重量轻，灵活等优点，有机太阳能电池（OSC）是有前景的绿色能源之一。[1-5]对于主要以富勒烯衍生物为受体的结构且具有体异质结的单结有机太阳能电池，由于新型供体材料和装置的发展优化，过去十年在这方面取得了巨大进展，而且功率转换效率（PCE）已达到10％以上。[6-11]富勒烯衍生物受体在有机太阳能电池中获得的巨大成功归因于几个根本原因包括强的电子亲和力，高电子迁移率和各向同性的电荷传输，以及形成合适的相分离[12,13]。然而，富勒烯衍生物有一些固有的缺点，例如在可见光区域吸收能力弱，成本的合成和纯化过程等。为了解决这些问题，非富勒烯电子受体材料由于具有良好的光吸收�

英语原文共 6 页， 改进高结晶性烷基取代的梯形聚合物的电荷传输和收集效率，带来了高能效的聚合物太阳能电池 在过去的十年中，供体-受体（D-A）的体异质结型（BHJ）聚合物太阳能电池（PSCs）的发展已经取得了明显的进步。特别地，在单结器件中，功率转换效率（PCE）为8-9%[ 1–5 ]。 在为BHJ设备开发的各种材料中，多环共轭聚合物由于其优越的光学和电学性能，显得尤为突出。[ 6–20 ] 高度融合的芳香族/异香族化合物增强了聚合物骨干的有效接合，从而促进了电子的传输。此外，共价刚性的相邻单元可以防止旋转无序减少重组能量，从而提高电荷迁移率[ 21–23]。到目前为止，自第一次报告TPT（也叫IDT）以来，已经开发出了大量的扶环、梯型类型的供体系统。[ 6–8 ] 聚合物太阳能电池基于IDT的一种聚合物，PIDT-BT，在经过仔�

英语原文共 7 页， 新型含环氧/氮杂硫醇硫化体系的聚合机理及固化动力学 Changli Luuml;, Zhanchen Cui, Bai Yang, Xiaoping Su, Chengsong Huo, Jiacong Shen 摘要：双[3-（2,3-环氧丙硫基）苯基]砜（BEPTPhS）/三巯基硫代乙胺（TMTEA）体系具有自催化作用，可以不加任何其他添加剂。对BEPTPhS / TMTEA的固化动力学体系采用动态和等温差示扫描量热法进行了研究。用Kiss-inger和Ozawa方法计算动力学参数，显示BEPTPhS / TMTEA等温反应的动力学反应机理表现为自催化动力学。通过实验数据计算得Kamal模型的等温动力学参数，包括k 1，k 2，m和n;虽然在低转变时观察到偏差，但获得了固化动力学的良好描述。 Arrhenius动力学分析表明，活化能随着反应转化率的增加而降低，说明反应机理发生了变化。等温动力学分析和Arrhe-nius动力学分析都表明，TMTEA中氮原子的催化效应以�

三维非对称边坡稳定性分析Bishop、Janbu和 Morgenstern–Price技术的扩展 摘要：大多数现有的三维边坡稳定分析方法都是基于相应的二维分析方法和对称的或滑动方向被假定的平面分析方法。本文根据Bishop简化、Janbu简化和morgenstern-Price方法，建立了三维非对称的边坡稳定性分析模型。在这些新的公式中，滑动的方向是唯一的，是由三维力/力矩平衡决定的。新方程的结果与一般情况下的经典方法相似，但在横向荷载作用下，数值更稳定。此外，作者们证明，目前的公式实际上等效于Jiang和Yamagami的轴旋转公式，但更方便地用于一般问题。作者还发现了在3D极限平衡分析中固有的局限性，这在相应的2D分析中是不存在的。 介绍 所有的边坡破坏本质上都是三维的, 但通常采用二维建模, 因为这能大大简化分析。目前, 现有的3D边坡稳定分析方法存在诸

Transmission design As we all know automobile engine to a certain speed can be achieved under the best conditions, when compared issued by the power, fuel economy is relatively good. Therefore, we hope that the engine is always in the best of conditions to work under. However, the use of motor vehicles need to have different speeds, thus creating a conflict. Transmission through this conflict to resolve. Automotive Transmission role sum up in one sentence, called variable speed twisting, twisting or slow down the growth rate by increasing torsional. Why can slow down by twisting, and the growth rate but also by twisting? For the same engine power output, power can be expressed as N = WT, where w is the angular velocity of rotation. When N fixed, w and T is inversely proportional to the. Therefore, the growth rate will reduce twisting, twisting slowdown will increase. Automotive Transmission speed gear based on the principle of variable twisted into various stalls of differen

CHAPTER 1 AUTOMOTIVE BASICS 1.1 Principal Components Today#39;s average car contains more than 15,000 separate, individual parts that must work together. These parts can grouped into four major categories: engine, body, chassis and electrical equipment. 1.2 Engine The engine acts as the power unit. The internal combustion engine is most common: this obtains its power by burning a liquid fuel inside the engine cylinder. There are two types of engine :gasoline(also called a spark-ignition engine) and diesel(also called a compression-ignition engine).Both engines are called heat engines; the burning fuel generates heat which causes the gas inside the cylinder to increase its pressure and supply power to rotate a shaft connected to the transmission. 1.3 Body An automobile body is a sheet metal shell with windows, doors, a hood, and a trunk deck built into it. It provides a protective covering for the engine, passengers, and cargo. The body

Design and application of electric oil pump in automatic transmission Abstract: For the purpose of improving efficiency and realizing start–stop function, an electric oil pump (EOP) is integrated into an 8-speed automatic transmission (AT). A mathematical model is built to calculate the transmission power loss and the hydraulic system leakage. Based on this model, a flow-based control strategy is developed for EOP to satisfy the system flow requirement. This control strategy is verified through the forward driving simulation. The results indicate that there is a best combination for the size of mechanical oil pump (MOP) and EOP in terms of minimum energy consumption. In order to get a quick and smooth starting process, control strategies of the EOP and the on-coming clutch are proposed. The test environment on a prototype vehicle is built to verify the feasibility of the integrated EOP and its control strategies. The results show that the selected EOP can satisfy the flow

Engineering Failure Analysis 13 (2006) 1293–1302 www.elsevier.com/locate/engfailanal Fatigue failure of a rear axle shaft of an automobile Osman Asi * Department of Mechanical Engineering, Usak Engineering Faculty, Afyon Kocatepe University, 64300 Usak, Turkey Received 26 August 2005; accepted 31 October 2005 Available online 2 February 2006 Abstract This paper describes the failure analysis of a rear axle shaft used in an automobile which had been involved in an acci-dent. The axle shaft was found to break into two pieces. The investigation was carried out in order to establish whether the failure was the cause or a consequence of the accident. An evaluation of the failed axle shaft was undertaken to assess its integrity that included a visual examination, photo documentation, chemical analysis, micro-hardness measurement, ten-sile testing, and metallographic examination. The failure zones were examined with the help of a scanning electron micr