亚硝胺

与二烯烃橡胶相比，EPDM的双键很少：为了提高EPDM胶料的硫化速度，需要加入大量的促进剂。由于某些促进剂中含有仲胺，这是亚硝胺的主要来源，因此人们正在考虑使用一类新的促进剂。考察了不同硫化体系对亚硝胺排放、加工参数和物理性能的影响，片采用试验设计方法对硫化体系进行了优化。     

桥梁景观CI理论及实践

分析桥梁景观CI理论的提出背景,以德清英溪大桥景观设计的工程实践为例,尝试运用企业 CI理论知识,在国内桥梁景观理论界第一次系统阐述桥梁景观 CI的概念,其构成要素,运用等内容,以形成桥梁景观 CI理论体系,使桥梁景观设计更具有独特性、统一性、系统性。     

桥梁地基部分被淘蚀后的稳定性研究

处于斜坡上的桥梁地基常会受到冲刷淘蚀而使基底面积减小,对桥基造成不利影响。针对这一情况,研究淘蚀形状不规则的桥基稳定性计算方法和计算公式。     

基于随机模拟的RBT与BRT冲突延误计算

以边侧型快速公交系统（BRT）为研究对象，给出一种计算由常规公交系统（RBT）与（BRT）冲突造成延误的方法，该方法运用Matlab编程技术和随机模拟技术，文章介绍了应用这一方法的计算实例。     

YC4108Q柴油机机体的动态特性分析及结构改进

以广西玉柴最新开发的YC4108Q柴油机机体为研究对象。通过试验模态分析，获得了机体的基本振型和相关频率；以试验数据为依据，结合三维CAD软件UG和大型结构分析软件MSS.NASTRAN的优势，通过应用不同的单元划分网格进行比较，建立了机体的三维有限元动态计算模型；利用已建模型，对机体结构进行了分析并得到改进方案。     

中意车前围改型设计及模型制作

介绍了中意车前围改型的全部过程，对概念设计、全尺寸模型的制作、涂装评审等方面作了全面的阐述，以两个1：1模型为例介绍了三维造型中经常遇到的难点问题和解决方法。     

Demand for rail travel to and from airports

Rail access to airports is becoming increasingly important for both train operators and the airports themselves. This paper reports analysis of inter-urban rail demand to and from Manchester and Stansted Airports and the sensitivity of this market segment to growth in air traffic and the cost and service quality of rail services. The estimated demand parameters vary in an expected manner between outward and inward air travellers as well as between airport users and general rail travellers. These parameters can be entered into the demand forecasting framework widely used in the rail industry in Great Britain to provide an appropriate means of forecasting for this otherwise neglected market segment. The novel features of this research, at least in the British context, are that it provides the first detailed analysis of aggregate rail flows to and from airports, it has disaggregated the traditional generalised time measure of rail service quality in order to estimate separate elasticities to journey time, service headway and interchange, and it has successfully explored departures from the conventional constant elasticity position.     

主跨138m预应力混凝土连续梁桥的施工控制

本文以广州市金沙洲大桥主桥大跨度预应力混凝土连续梁桥为背景 ,介绍大跨度混凝土连续梁桥施工控制的目的、内容、方法和措施等 ,并根据现场测试的结果来验证本文所使用的控制方法的正确性和合理性     

铸铁件在现代汽车中的位置

铸铁是汽车四项主要构造材料之一，其重量份额一般居第二位，仅次于钢，而高于铝和塑料。铸铁具有资源、价格和铸造、切削工艺优势。铸铁技术开发已取得了重要进展，不断发展高强度品种，在摩擦磨损领域有优异的表现，此外在吸振性、密度、刚性、对温度的适应性和抗氧化起皮性能上，对各竞争材料有这一点或那一点的优势，能适应某种汽车零件的特定服役要求， 成为优选材料。本文分析若干汽车铸铁件应用实例和提出开发的潜力。     

Neuro-Fuzzy Control of a Tracked Vehicle Featuring Semi-Active Electro-Rheological Suspension Units

This paper presents vibration control of a tracked vehicle installed with electro-rheological suspension units (ERSU). As a first step, an in-arm type ERSU is designed, and its spring and damping characteristics are evaluated with respect to the intensity of electric fields. Subsequently, a 16 degree-of-freedom model for a tracked vehicle equipped with the proposed ERSU is established followed by the formulation of a neuro-fuzzy controller. This controller takes account for both ride quality and steering stability by adopting a weighting parameter between two performance requirements. The parameter is appropriately determined by employing a fuzzy algorithm associated with two fuzzy variables: the vertical speed of the body and the rotational angular speed of the wheel. Control performances to isolate unwanted vibration from bump and random road excitations are evaluated through computer simulations. In addition, maximum speed of the vehicle with 6 Watt power absorption is investigated with respect to the road roughness.