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A Model and Algorithm for Multi-mode and Multi-route Combined Assignment

Wei Zhu
With development of economy and society, people’s travels in China present the multi-mode and multi-route characteristic more and more normally, and the factors of decision-making become more and more various. A kind of model and algorithm with elastic weight for multi-mode and multi-route combined assignment...

Research on Rolling Mill Vibration Based on the Rolling Piece Hysteretic Nonlinear Deformation

Dongxiao Hou, Fei Liu, Haoran Liu, Rongrong Peng, Yue Zhu
The Bonc-Wen hysteretic model was used describe the rolling piece elastic-plastic deformation process performance of hysteretic characteristics, this hysteretic characteristic considered in the rolling process, vertical vibration model of hysteretic nonlinear of the strip mill roll system is established....

Comparison of the improvement of directional stability for Anti-lock Brake control algorithm

Jing Li, Zihan Wang, Li-shu Guo, Zheng-tang Shi
A nine freedoms nonlinear three-axle vehicle dynamic model was constructed by Matlab/Simulink to analyze the control effect of directional stability for different Anti-lock Brake control algorithm. Algorithms analyzed here contain PID, logic threshold and sliding mode variable structure control algorithm....

Design and Realization of the Safe Driving Speed Analytical System

Bin Liu
This paper designed the safe driving speed analytical system on the basis of Matlab auxiliary fuzzy control, builds its model of the multi-sensors information fusion. According to the real time monitored temperature and pressure, applying fuzzy control technology, determining of the driving speed security...

Reliability Analysis of Railway Signaling System Based Petri Net

Hongxia Chen, Qiang Sun
Railway signaling system is essential equipment for high speed railway and passenger special line, and it play an important role to ensure safety and improve efficiency. Reliability analysis to railway signaling system is necessary and valuable. Railway signaling system is a complex and dynamic system....

Analysis and Optimize of the Vibration of Mini-Electrical Vehicle Frame

Ruo-xun FAN, Jie Liu, Tan-li Wang, Hong-fei Xue
Geometry model and finite element model of the mini-electrical vehicle frame are constructed by catia and hypermesh. Then, the natural frequency of the lower mode and vibration mode which belong to the electrical vehicle are calculated by radioss. At last, comparing with the excitation frequency of the...

Research of the Assessment for Agricultural Machinery Driving Safety Based on AHP-FUZZY Method

Wenlong Chen, Wentao Han
In order to realize the assessment of agricultural machinery driving safety, the key factors of influencing agricultural machinery driving safety were selected and an indexes system of agricultural machinery driving safety assessment was built up. Based on AHP-FUZZY, the assessment weight coefficients...

Study on Analysis of Chenghe Fly Ash and Preparation of molecular sieve

Jianli Yang, Meili Du, Xiaogang Yang, Renshan Li
In recent years, with the rapid development of coal industry, a large number of coal fly ash has been produced, while the recycling rate of the ash is rather low. It is not only a waste of the precious land resources, but also makes environment suffering severe pollution. As an important kind of new...

Applied Research on Optimum Dosage of Flexible Waterproof Material for Bridge Deck

Fenglan Bian, Younian Dou, Haiquan Cai
The dosage of bridge deck waterproof material can influence not only the road performance but also the construction cost of waterproof layer. The bond strength, shear strength and pull strength of different bridge deck waterproof material dosage are tested to determine the optimum amount. The method...

Application of Anchor Spray Combine Arch Rib Reinforce Technology of Stone Arch Bridge

Ruiwei Fang, Xiuzhi Yang
With the development of bridge construction in China, disease bridges became more and more, bridge reinforcement became a important topics facing the bridge workers. Shi-Yan line (S335) Shuigou Bridge is a stone arch bridge of 5-20meter, diseases such as stone arch ring crack, break, endanger the bridge...

Diagnostic testing and analysis of Independent ignition system based on the Volkswagen 1.8T engine

Wen Fang, Linfu Zhou
According to fault diversity of independent electronic ignition system based on the Volkswagen 1.8T engine, analyzed Sagitar circuit structure of single-cylinder independent ignition system. By the Volkswagen detector 6150 and BOSCH FSA740 analyzer equipment, used diagnostic methods of Volkswagen independent...

Coordinate Signal Control in Urban Traffic of Two-direction Green Wave based on Genetic BP Neural Network

Shaojiao Lv, Chungui Li, Zheming Li, Qingkai Zang
To maximize the bandwidth of green wave of trunk road is a main issue in the research of signal control in urban traffic. However, the traditional analytical algorithm can not be applied in actual traffic widely. A novel dynamic two-direction green wave coordinate control strategy was proposed to overcome...

Research on Impregnation Coatings for Protecting Concrete

Wenjuan Gu, Banggui He, Jike Liu, Jie Li
The protecting of concrete, which consists of coating a chemical substance onto concrete’s surface, has been applied to architectural conservation. There is increasing interest in studying materials for concrete which can reduce the infiltration of water and salt solutions and rehabilitate and extend...

Dynamic performance of a pure electric vehicle experimental analysis

Tan-li WANG, Chang-hong CHEN, Shi-zhan GAO, Xing-quan LI, Ying-xiao YU
On the basis of analysis of the slop and accelerate inertia force affect on the driving force, this paper propose a calculate method of the maximum driving force and gradient based on the acceleration of the flat road and slop. The result show that the proposed calculate method of electric vehicle maximum...

Research on the Optimization of the Transportation of the Hazardous Materials

Fengrun Guo, Weidong Liu, Wentao Han, Wei Yu
Many ways may be available to transport the hazardous materials. However, different ways will lead to the difference in the cost of transportation and loss of total social expectations. Under the same condition, this paper studies the best way and path to move the materials of danger. It explains the...

Study on the Method of Fatigue Test Loading Spectrum of the Connecting Rod in Diesel Engine

Qing-guo LUO, Xu-dong WANG, Geng-yun ZHANG, Feng WANG, Shu-sheng BAI
Based on flexible multibody system dynamic theory, founded the rigid-flexible coupling multibody dynamic analysis model of the crank and connecting rod mechanism of diesel engine which included the piston, link, crankshaft and flywheel. The dynamic stress of the connecting rod was calculated and counted...

A Study on Control Strategy under Tip-in Condition Based on AMT Vehicle

Yang Gao, Yong Chen, Daguo Luo, Wenzhong Liu, Mingqi Gu
The control strategy of gear-position optimization of an AMT vehicle under Tip-in condition is presented in this article. The down-shift principle of an automatic transmission under an acceleration condition is also analyzed. The in-the-loop simulation platform of transmission system software of an AMT...

Research on Combustion Characteristics and Performances of an HCCI Engine Fuelled with Methanol

Han WU, Chunhua ZHANG, Jiangru PAN, Yangyang LI
The impacts of engine operating parameters, including intake charge temperature, fuel-air equivalence ratio and engine speed, on methanol HCCI combustion and performances were investigated on a modified diesel engine. The results show that the intake charge temperature is the most sensitive parameter...

A Fast BPNN Based Image Deblurring Method

Xiaozhi Ren, Binchao Bin
This paper proposes a fast deblurring method based on back propagation neural networks (BPNN), in which the symmetry of blur function is utilized to reduce the size of network. In the image block used to be training vector, the pixels that have the same distance with centrral pixel are set the same weight...

A case study of distributed network fault detection technology in distance education

Qianjun Tang, Yan Zhang, Yongju Li
The intrusion detection under the environment of IPv6 is an important security technology along with firewall in system security defense system, which can be used for real-time detection and monitoring of the system in the whole process of system invasion. This paper puts forward an intrusion detection...

An Intrusion Detection Method Study Under the Environment of IPv6

Chao Wang, Bin Wang, Zhang Zong-li
The intrusion detection under the environment of IPv6 is an important security technology along with firewall in system security defense system, which can be used for real-time detection and monitoring of the system in the whole process of system invasion. This paper puts forward an intrusion detection...

Circular Arc Gear Reliability Study Based on Modified FOSM Method

Zhong Li, Yu-cheng Bo
As different limit state functions are used to analyze reliability, there is a great distinctness among the calculated results. In this paper an improved LOSM method is proposed, namely, checking point method. The circular arc gear case is employed to demonstrate this method. In contrast to the results...

The research of improved Apriori mining algorithm in bank customer segmentation

GongXin Yang
The This paper studies bank customers’ segmentation problem. Improved Apriori mining algorithm is a kind of data mining technology which is an important method in bank customers segmentation. In practical application, the traditional algorithm has shortcomings of the initial value’s sensitive and easy...

Research on control method of complex time-varying system

Tian Hongbin
Because the charged objects have the factors of complexity, interference uncertainty and nonlinear, the time-varying system control method gains increasingly attentions. First, this paper carries the researches on the time-varying system classification and builds the control model of the time-varying...

Series-parallel combined constant pressure water supply pipeline design of high-rise building

Shilei Li, Hui Chen, Qiang Wang
The existing parallel type pressurized water supply pipeline of high-rise buildings has been improved to build energy-saving high-rise building water supply systems. Series-parallel combined constant pressure water supply pipeline is designed. Antipollution high water tank is reasonably installed above...

Energy saving design principle analysis of power electronic transformation system

Tao Wan
Power electronic transformation system is applied widely in industrial control and the application environment is complex. Big, small and medium-sized system power consumption improves continuously, so it is urgent to reduce the system energy consumption problems. This paper proposes a way to reduce...

Design and Implementation of a Digital Campus System based on the URP platform

Yanhong Zhang, Yunli Cheng
The development and construction of the university informationization has become the important means for universities to improve their management level and enhance the comprehensive competitiveness.Combining with the situation of our school, Researching an overall construction scheme of the Digital Campus...

Research on New Techniques and Development Trend of Software Testing

Hongchun Zhang
Some typical latest research results were summarized according to the analysis and research on the current situation of software testing both at home and abroad in this paper. On the basis of the current researches on software testing, the writer discussed the future research topic on software testing...

The application of Fuzzy clustering number algorithm in network intrusion detection

Gua Lang
In view of the defects of K-means algorithm in intrusion detection: the need of preassign cluster number and sensitive initial center and easy to fall into local optimum, this paper puts forward a fuzzy clustering algorithm. The fuzzy rules are utilized to express the invasion features, and standardized...

Research on Food Safety RFID Anti-collision Algorithm

Xiang-jie Niu, Hua Li
As an effective way to control the quality and safety of agricultural products, traceability system is aroused growing world attention. On the purpose of retrospective quality, this paper constructs a food safety management and quality traceability system from IT view. The paper makes a detail analysis...

Cloud computing environment based on Web log mining algorithm implementation of test

Bin Wang, Jiang Yong-cheng, Jing Li
Software test is the important means that guarantee software quality and reliability and in this respect it plays the role that other method cannot replace. However software test is a complex process , it needs to consume huge manpower material resources and time which takes the 40%~50% of entire software...

Three Conjectures about the Number Systems and Their Conversion

Yanhong Zhang
The conversion between Tetrad Notation and other notational systems has attracted people’s attention; addition conjecture: if the maximum digit of base-N notation is (N-1), then N-1 + N-1 is a binary digit, whose most significant digit is 1 and least significant digit is (N-2); multiplication conjecture:...

Lymph Node Image Segmentation Based on Improved FCM Clustering and Multi-threshold

Yanling Zhang, Yuejia Zhang, Li Li
The pathological change of lymph node is an important basis of malignant tumor detection and judgment of metastasis of cancer (lung cancer, colorectal cancer, breast cancer, liver cancer, cervical cancer, etc.) An algorithm of lymph node image segmentation based on improved FCM clustering and multi-threshold...

Study on Explosively Formed Projectiles Test System

Yangjun Li, Weiping Guo, Gao Wang, Su-jie Lian
Explosively Formed Projectile (EFP) is a new branch of the shaped charge technology. It is developed as an anti-solid target technology in recent decades. Velocity of EFP changes quickly with the change of EFP shape. It is very important to research the velocity and morphology change of EFP in their...

Research of Radiographic Image Enhancement Technology

Yan Chen, Yanling Shao, Zhiguo Gui
Image enhancement has applied widely in biomedical, nondestructive testing, satellite remote sensing and other fields. Especially for the low contrast radiographic images, usually there are some disadvantages for a radiographic image such as the local area image does not show a striking contrast. In...

Fuzzy Reliability Design on Mechanical Components under Normal Distribution Based on Entropy Theory

Zhong Li, Yucheng Bo
In fuzzy reliability design on Mechanical Components, the determination of characteristic value of subordinate function mainly depends on the experience that accumulated and summarized by researchers. Thus, it has strong subjectivity. In this paper, through entropy theory the relationship between determining...

Practical Enhanced Topology Discovery Algorithm for MANET

Huasen Fu
In order to effectively manage the communication nodes in Mobile Ad Hoc Network (MANET), it is important to know the topology of such networks. Traditional Ad-hoc On-demand Distance Vector (AODV) protocol can not get the MANET topology due to the lack of the topology discovery mechanism. Aiming at this...

Research on PID Neural Network Control System of Temperature for Agricutural Film Unit

Yue Feng, Meixia Qiao, Shuai Zheng
The temperature of agricultural film unit affects the plastic film directly. Since unit heating process has the characters of time delay, nonlinear, time-varying and strong coupling. It is difficult to create a mathematical model structure of plastic melting process. Thus, temperature control is very...

Research on three fierce exploders’reflected terahertz spectrum

Gao Wang, Jianquan Yao, Degang Xu, Xiaofang Ren
The rapid development of the Terahertz technology has been the essential focus among all application fields. In order to applying the spectral technology to the security and analyzing all exploders’ spectrum characteristics, the paper aims to three exploders’ spectrums researches including the HNS, DNMT...

Harmony Search Optimization Algorithm Based on Normal Cloud

Lifu Wang, Zhi Kong, Xingang Wang
The pitch adjusting rate (PAR) is an important parameter in harmony search algorithm, which indicates that the algorithm will choose a neighboring value with a probability. The traditional harmony search algorithm uses fixed value for PAR. However, PAR should be increased when all objective values are...

“Big Fire Control”in the Condition of Information War

Kejun Zhang, Wu Xu
Due to fast development of information technology, the form of human war is changing from mechanization war to information war. Fire control system should be built from the platform-centric warfare into the network-centric warfare. With the widely use of “big fire control”, information war in future...

Research of Transport Junctions of Flow Analysis Algorithm based on Decision-making Theory

Xiaofeng Li, Shuchun Ding, Bin Wang
Intersection traffic flow analysis and analysis of algorithms, design of algorithms, this paper, the vehicles unified identification as a standard car equivalent steps of the algorithm based on the decision-making on the flow of traffic junctions, the algorithm is applicable not only to single-coil detector...

Library Temperature and Humidity Remote Control System Based on Micro Controller Unit

Na Li, Yonggang Tang
This thesis has designed a remote control system which takes Micro controller Unit AT89S51 as the core for library temperature and humidity.The system consists of temperature and humidity data acquisition, wireless transceiver, Micro controller Unit and PC data display modules. The system can detect...

DC-modulated AC/AC converters

Fanglin Luo
Traditional methods of AC/AC converters have general drawbacks: output voltage is lower than input voltage, the input side THD is poor and output voltage frequency is lower than input voltage frequency by using voltage regulation method and cycloconverters. We introduce the novel approach - DC-modulated...

Feature Extraction Method for Wheat Diseases Based on Multi-fractal Spectrum

Feiyun Zhang
Wheat diseases image noise was effectively removed using lifting scheme multi-wavelet transform and multi-fractal analysis, and then it used multi-fractal theory to segment diseases image and extract eight multi-fractal spectrum values as wheat shape feature of diseases. Experiments showed that the shape...

Laddered Multilevel DC/AC Inverters used in Solar Panel Energy Systems

Fanglin Luo
Multilevel DC/AC Inverters have various structures. They have many advantages. Unfortunately, most existing inverters content too many components (independent/floating batteries/sources, diodes, Capacitors and switches). The author introduces the "Laddered Multilevel DC/AC Inverters” in this paper that...

Mapping of Rescue Environment Based on NDT Scan Matching

Jinliang Li, Youxia Sun
This paper studied the mapping problem for rescue robots based on laser scan matching and extend Kalman filtering (EKF). Because of the non-structural rescue environments, it is hard to extract typical features. Scan matching method based on normal distribution transform (NDT) can avoid the hard feature...

Study on the adiabatic temperature of Al-Ti-C grain refiner synthesized by SHS technique

Y L Li, T G Zhou
SHS technique and conventional melting and casting technology were combined and used for the preparation of Al-Ti-C grain refiner alloy. Experimental results show that when SHS reaction occurs to the Al, Ti and C powder reactant in Al melt and the composition proportion factor, n , is between 4 and 10,...

The Accurate Method for Removing Misalignment Errors from Testing Rectangular Optics

Zhu Li, Xiaokun Wang, Song Li
The limitations of current interferogram reduction software with Zernike polynomials in analyzing rectangular interferogram are illuminated. The Zernike polynomials are no longer orthogonal over an rectangular region and have no explicit physical meanings. The reasonable mathematical model for removing...

Design of Fault Diagnosis of Automobile Lights Based on CAN/LIN Bus

You Ren, Wei Sun
Based on the research of the CAN/LIN bus communication protocol, an automobile lamps diagnostic system based on the CAN/LIN bus is designed. After the completion of the software and hardware designs of CAN nodes, LIN nodes and CAN/LIN nodes, the faults of automobile lamps can be successfully diagnosed....