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FAULT DIAGNOSIS OF AUTOMOBILE MAIN REDUCER BASED ON CORRELATION DIMENSION

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FAULT DIAGNOSIS OF AUTOMOBILE MAIN REDUCER BASED ON CORRELAT...

2006年中国机械工程学会年会暨中国工程院机械与运载工程学部首届年会

作者： PANG Mao, ZHOU Xiaojun, YANG Chenlong College of mechanical and Energy engineering, Zhejiang University, Hangzhou, 310027, china

The theory of correlation dimension computation based on GP is concise, but the computation burden is heavy, and scaling region recognition automatically is hard. A method to scaling region recognitio

关键词： Correlation dimension scaling region main reducer fault diagnosis.

Torque Distribution Strategy for Integrated Starter/ Generator Hybrid Bus Implemented by Fuzzy Algorithm

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Journal of Shanghai Jiaotong university(Science) 2008年第3期13卷 323-329页

作者：钟虎敖国强王锋马兹林冒晓建卓斌 Institute of Automotive Electrics Technology School of Mechanical EngineeringShanghai Jiaotong University

A torque distribution strategy was designed by using fuzzy logic to realize the optimal control. The vehicle load zones were dynamically divided into several zones by several torque lines to indicate the drivers demand and the high or low efficient operating areas of the diesel engine. The fuzzy logic controller with trapezoid membership function and Mamdani rule reference mechanism was utilized. There are over 100 rules used in this fuzzy-based torque distribution strategy which are sorted into four rule-bases. The fuel economy and acceleration tests were designed to test and validate the integrated starter/generator (ISG) bus perfor-mance using fuzzy-based torque distribution strategy. The fuel economy is improved 7.7% compared with the rule-based strategy. Finally the road test results reveal that there is about 15% improvement of fuel economy. And the 0-50 km/h acceleration time is 9.5% shorter than the original bus.

关键词： hybrid electric vehicle integrated starter/generator (ISG) torque distribution strategy fuzzy logic control

SOLUTION CHEMISTRY OF ELECTROKINETIC BEHAVIOR OF CARBONATE MINERALS

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中国有色金属学会会刊：英文版 1995年第4期5卷 26-30页

作者： Hu Yuehua Luo Lin Qiu Guangzhou(department of Mineral engineering,Central South University of Technology,Changsha 410083) Wang Dianzuo(Beijing General Research Institute for Nonferrous Metals,Beijing 100088) Central South Univ of Technology Changsha China

ＳＯＬＵＴＩＯＮＣＨＥＭＩＳＴＲＹＯＦＥＬＥＣＴＲＯＫＩＮＥＴＩＣＢＥＨＡＶＩＯＲＯＦＣＡＲＢＯＮＡＴＥＭＩＮＥＲＡＬＳＨｕＹｕｅｈｕａ；ＬｕｏＬｉｎ；ＱｉｕＧｕａｎｇｚｈｏｕ（ＤｅｐａｒｔｍｅｎｔｏｆＭｉｎｅｒａｌ... 详细信息

ＳＯＬＵＴＩＯＮＣＨＥＭＩＳＴＲＹＯＦＥＬＥＣＴＲＯＫＩＮＥＴＩＣＢＥＨＡＶＩＯＲＯＦＣＡＲＢＯＮＡＴＥＭＩＮＥＲＡＬＳＨｕＹｕｅｈｕａ；ＬｕｏＬｉｎ；ＱｉｕＧｕａｎｇｚｈｏｕ（ＤｅｐａｒｔｍｅｎｔｏｆＭｉｎｅｒａｌＥｎｇｉｎｅｅｒｉｎｇ，Ｃｅｎｔｒ...

关键词： carbonate type minerals electrokinetic behavior solution chemistry

Improvement of Efficiency and Flexibility in Multi-slice Helical CT

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Journal of Shanghai Jiaotong university(Science) 2008年第4期13卷 408-412页

作者：孙文武陈思平庄天戈 Nanchang Institute of Aeronautical Technology Shenzhen University department of Biomedical engineering Shanghai Jiaotong University

One of the main aspects in computed tomography (CT) development is to make CT rapidly scan a large longitudinal volume with high z-axis resolution. The combination of helical scanning with multi-slice CT is a promising approach. Image reconstruction in multi-slice CT becomes, therefore, the major challenge. Known algorithms need to derive the complementary data or work only for certain range of pitches. A reconstruction algorithm was presented that works with the direct data as well as arbitrary pitches. Filter interpolation based on the proposed method was implemented easy. The results of computer simulations under kinds of conditions for four-slice CT were presented. The proposed method can obtain higher efficiency than the conventional method.

关键词： multi-slice computed tomography helical interpolation rebinning filter interpolation

Simulations and Technological Design for the Construction of Longcheng Bridge

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Simulations and Technological Design for the Construction of...

2007工程机械与车辆工程新进展国际学术会议

作者： Zhang Qing He Tianwei College of mechanical engineering Tongii University Shanghai 200092 P.R.china

＜正＞Using ADAMS,this paper establishes the model for rotate-erection of the main bridge tower and studies on erection problems associated with engineering *** results of dynamic analysis of the erection provide cred... 详细信息

关键词： ADAMS Virtual prototyping,VP Simulation

一种适用于紧急事件调度的启发式项目调度新方法

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上海交通大学学报 2009年第3期43卷 470-475页

作者：梁燕金烨上海交通大学机械与动力工程学院上海200240

针对紧急事件调度的紧迫性特点,为了快速准确制定响应方案,建立了一种基于资源约束的启发式项目调度方法.为了确定方案执行过程中的关键任务,将该方法与关键链方法相结合确定最终的调度方案.首先,在不考虑资源约束的条件下,制定了任务... 详细信息

针对紧急事件调度的紧迫性特点,为了快速准确制定响应方案,建立了一种基于资源约束的启发式项目调度方法.为了确定方案执行过程中的关键任务,将该方法与关键链方法相结合确定最终的调度方案.首先,在不考虑资源约束的条件下,制定了任务的最早及最晚开始时间计算方法,用来确定项目的初始关键链;然后,利用资源受限项目调度模型,通过制定的启发式规则确定资源约束下的关键链;最后,利用根方差法确定关键链中输入缓冲区的容量.同时,以海上救援紧急作业调度为例对算法进行了测试,并将该算法与现有的多种启发式规则进行了比较.结果表明,本算法能生成更好的调度方案,更适用于紧急事件调度.

关键词：资源受限项目调度关键链启发式算法

AN EXTENSIBLE STATIC ANALYSIS METHOD USING DEFECTS DESCRIPTION LANGUAGE

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AN EXTENSIBLE STATIC ANALYSIS METHOD USING DEFECTS DESCRIPTI...

第八届分布式计算及其应用国际学术研讨会

作者： ZHU TIAN QING department of Computer Information engineering Wuhan Polytechnic University Wuhan 430040 china

As an important software defects analysis method,static analysis is wildly used in software coding and *** this traditional method is inextensible and inefficient that users have to find defects artificially.A framework is implemented to locate defects called DDS（Defects description system）and an annotation Language was designed to describe defects which named DDL（Defects Description Language）.The rules written in DDL will be saved in rule set and can be used by DDS to locate the defects *** experimental results demonstrate that the method is available to identify defects in programs.

关键词： Static Analysis Defects Description Syntax Tree Matching

Chaotic Motion and Its Control in Nonlinear Nonplanar Oscillations of a Parametrically Excited Cantilever Beam

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Chaotic Motion and Its Control in Nonlinear Nonplanar Oscill...

第二十三届中国控制会议

作者： Wei ZHANG (College of mechanical engineering, Beijing University of Technology, Beijing 100022, P. R. china.

＜正＞ This paper presents the analysis on the chaotic motion and its control in the nonlinear nonplanar oscillations of a cantilever beam subjected to a harmonic axial excitation and transverse excitations at the free end. A new method of controlling chaotic motion in the nonlinear nonplanar oscillations of a cantilever beam, refereed as to the force control approach, is proposed for the first time. The work is focused on the case of 2:1 internal resonance, principal parametric resonance-1/2 subharmonic resonance for the in-plane mode and fundamental parametric resonance-primary resonance for the out-of-plane mode. The method of multiple scales is used to transform the parametrically and externally excited system to the averaged equations which have a constant perturbation force. Based on the averaged equation obtained here, numerical simulation is utilized to discover the periodic motion and chaotic motion in the nonlinear nonplanar oscillations of the cantilever beam. The numerical results indicate that the transverse excitation of the z direction at the free end can control the chaotic motion to a period n motion or a static state in the nonlinear nonplanar oscillations of the cantilever beam.

关键词： Cantilever beam nonlinear nonplanar oscillations chaotic dynamics controlling chaos

Detect early stage lung cancer by a LAMP microfluidic chip system with a real-time fluorescent filter processor

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Science china.Chemistry 2012年第4期55卷 508-514页

作者： WANG TongZhou1, ZHANG Ye1, HUANG GuoLiang1,2,3, WANG Can2, XIE Lan1, MA Li2, LI ZhiYong2, LUO XianBo2, TIAN Hao2, LI Qiang1, LI Xin1, LV ZhouYan1 & BAO XiaoFan11department of Biomedical engineering, School of Medicine, Tsinghua University, Beijing 100084, china.2National engineering Research Center for Beijing Biochip Technology, Beijing 102206, china.3Yangtze Delta Region Institute of Tsinghua University, Hangzhou 330401, china department of Biomedical engineering School of Medicine Tsinghua University Beijing China National engineering Research Center for Beijing Biochip Technology Beijing China Yangtze Delta Region Institute of Tsinghua University Hangzhou China

This work presents a promising clinical molecular diagnostics for early stage lung cancer. This novel diagnostic method utilized the loopmediated isothermal amplification （LAMP）, micro fluidic chips and a confocal optical detector with a nonlinear fluorescent filter processor. An isothermal amplification based microfluidic chip for the early diagnostics of lung cancer was developed and a confocal optical detector was improved by a novel real-time fluorescent filter to sensitively monitor the DNA amplification procedure with high signal to noise ratio and fluorescence collecting ability. Experiment showed that a rapid diagnostic of lung cancer by detecting the existence of the CEA mRNA could be performed in only 5 laL of reaction assay in less than 45 min. While the traditional intube RTPCR set consumed more than 25 -μL of the assay and took more than 90 rain.

关键词： microfluidic chip – isothermal amplification – lung cancer – confocal detection – non linear filter