应用模糊控制器控制轿车空调制冷及风道系统

本文应用状态反馈模糊控制方法对轿车空调系统中的电子膨胀阀和温度混合风门进行控制来调节轿车车室内温度，在车速变化和热负荷变化的扰动下实现了车室内平均温度的自动控制，为最后轿车空调自动控制系统的产品化提供了良好的基础。     

柴油机排放后处理技术的进展及发展趋势

本文综述了柴油机排放主要是氮氧化物和微粒排放的后处理技术的新进展，并介绍了其发展趋势，指出机外净化将在满足未来排放法规过程中发挥越来越重要的作用，DeNOx-DPF组合形式的反应器系统将来可能会是一个较为理想的选择。     

我国安全带动态性能试验标准中滑车碰撞车速的探讨

本文通过对各国安全带动态试验标准中碰撞车速对比，台车碰撞模拟计算，实际道路交通情况的统计分析及国产安全带质量现状的试验验证，提出安全带动态性能试验中车速的限值的为４８±１ｋｍ／ｈ，此限值提出既考虑到与国际标准接轨，又顾及中国国情现状及今后的发展趋势，对制定我国安全带动态试验标准有一定的参考价值。     

车辆防抱系统鲁棒控制的研究

本文讨论了防抱制动系统鲁棒控制器设计问题，采用鲁棒和性能加权，系统有效地抗干扰和参数变化，使控制器有效地适应不同的路况及制动工况，与ＰＩＤ算法进行了比较，模拟的结果证实了该控制器的优良品质。     

基于横向预瞄偏差的驾驶员前视轨迹控制模型

文章给出了横向预瞄偏差的概念，提出了一种基于横向预瞄偏差的驾驶员前视轨迹控制模型。通过计算机仿真，验证了该控制模型的正确性。该模型与现行的预瞄驾驶员模型相比，具有理解容易，分析计算简单，实用性强的优点。     

轿车车内噪声源识别的道路试验方法

以某国产国力样车的车内噪声控制问题为例，阐述通过道路试验进行噪声源识别的方法，对实验方法确定、测试信号选择以及数据处理的程度和方法进行了系统的阐述。分析结果，该车车内噪声主要由于发动机的二阶振动引起，而且在传递途径上存在很强的共振，车身顶棚和前围板是主要的噪声辐射源，对该车的发动机悬置系统和车身顶棚进行了有针对性的减振降噪措施，取得了最大降噪8dB(A)的良好降噪效果。     

A STUDY OF HIGH FRAME RATE ULTRASONIC IMAGING WITH LIMITED DIFFRACTION BEAMS

ThepioneeringworkofBrittingham[1] suggest edthe possibilityofsolutionstoMaxwell’sequationsdescribinglocalizednondispersivetransferofelectromagneticenergyinspace .Theoriginallyproposedsolutions ,termedfocuswavemodes(FWMs) ,werecontinuousandnonsingular ,hadathree dimensionalpulsestructure ,werenondisper siveforalltime ,andpropagatedatlightvelocityinstraightlines .Torendertheenergycontentofthosesolutionsfinite ,Brittinghamintroducedtwosurfac esofdiscontinuityinfinitelyextendedalongthedi rectio…     

Strategy-Based Forecasting Model for Civil Airlines

Airlines usually pay more attention tO maintenance cost for efficiency improvement and consumption reduction．However，airlines，especially the domestic airlines，Can hardly predict the cost exactly due to the uncertainty and complexity until now．In practice，the cost is calculated by collecting and calculating the invoices afterwards．To settle the problem，a maintenance cost forecasting model is proposed in this paper．Maintenance activities are classified into scheduled maintenance and unscheduled maintenance．Scheduled maintenance is periodic，in which the required materials and man-power hours can be obtained properly in advance．Nevertheless，it is impossible to acquire the necessary in formation of unscheduled maintenance．According to the specific characteristics of each，Activity-Based Costing(ABC)and Cost Estimating Relationships(CERs)are introduced to attack the building of forecasting models，respectively．Then practical cases，the 3C check of MD-90 and the engine shop visit are adopted tO verify the cost forecasting models proposed．The results show that the models not only can predict the actual maintenance cost successfully，but also are helpful tO drawing up the maintenance program and managing the maintenance funds efficiently．     

Possibility of Strategic Alliance from Competition： A Game Analysis

The possibility for two competitive firms to form a strategic alliance was quantitatively analyzed with the game theory. The strategic alliance could be formed in an infinitely repeated game with complete information or a finitely repeated game with incomplete information. In the former situation, the discount ratio is important. If the discount ratio is large enough, alliance would be a possible solution. In the latter situation, the bigger the possibility of the rationality is, the more possible is for both firms to make strategic alliance.     

NEURAL NETWORKS PREDICTION FOR SEISMIC RESPONSE OF STRUCTURE UNDER THE LEVENBERG-MARQUARDT ALGORITHM

Activecontrolandsemi activecontrolarenewapproachestoseismichazardmitigationofstructure .Whileinactivecontrolorsemi activecontrol ,mea surementofstructurestate ,transmissionandcalcu lationofsignalandinflictionofcontrolforcerequiretime ,moreover ,controlforceiscalculatedaccordingtotheseismicresponseofstructureinlastepoch ,sothecontrolforceinactivecontrolorsemi activecontrolmaybedistortedduetotime delay .Suchdistortionusuallyincreasestheseismicresponseofstructureandmakesstructuremoredangerous[1-3…