Advanced Materials Research Vols. 268-270

Abstract: In Matlab/Simulink software semi-active suspension dynamic model of a quarter car is established and a sliding mode controller and a fuzzy sliding mode controller are designed. The fuzzy controller inputs are sliding mode switch function and its derivatives, and the output of absolute value is the sliding mode controller parameters. This fuzzy sliding mode controller chooses sliding mode controller and Skyhook as reference models and the simulation result shows that the stability of performance of the fuzzy sliding mode controller can effectively improve the driving smoothness and safety.

Abstract: This paper introduces Model Driven Architecture(MDA) and Aspect Oriented Programming(AOP), based on train online ticketing system, it describes various modules of the activity diagram and class diagram of this system. Through the activity diagram, it knows that which is crosscutting concerns, and then modeling for the crosscutting concern. This paper is improving the traditional MDA modeling with AOP technology.

Abstract: This study presents a smart remote controller (SRC) framework for the Android. The Android mobile device acts as the client side of the proposed SRC software. The software uses intuitive dynamic user operation modes to send remote control commands to the controlled side by leveraging the multi-touch events, gesture recognition and hand gesture features of the Android device. The remote controlled server side is based on a Java framework. This facilities portability to PCs or networked information appliances such as Internet TVs, thus, allowing users to establish connections and translate events to control corresponding programs or actions. In this design of the proposed SRC, advanced features are categorized into various modes that can be applied to the scenarios offices and digital homes.

Abstract: Paying more attention to economic benefit but less to social responsibility is a problem faced by many Radio & TV universities in China. As the most successful distance education university in the world, the Open University of UK provides much experience on management model. Favorable benefit and well development tendency are gotten by hammering at shouldering community responsibilities and winning public praise with quality. The management strategy of it would make contributions to the development of China’s Radio & TV universities.

Abstract: Currently, the earlier detection, diagnosis and treatment to breast cancer still mainly depend on physicians’ experience and knowledge. Case-Based Reasoning (CBR) mimics oncologists’ real thinking process and therefore is appropriate to the diagnosis decision making. In CBR, weight derivation as a key step is commonly conducted by expert score approaches using Delphi method. The accuracy of case matching largely changes with the selection and experience of experts. In this paper, information entropy for weight determination is introduced into the CBR. We conduct experimental studies to compare the performance of Delphi method and information entropy. The results suggest that: generally, information entropy is a better approach to weight derivation.

Abstract: Due to the issues of recent traffic situation and the problems of current vehicle recognition systems, a high resolution video image based real-time monitoring system for multi-lane violation trucks is presented and implemented in this paper. A soft-trigger technique based background-blocks is utilized to detect the big vehicles in real-time, then a step-by-step feature extraction and recognition approach effects from the facial window to entire vehicle body is proposed based on Sobel operator and Hough transform. Experimental results indicate the accuracy and efficient of proposed system, which has high practical value for several applications.

Abstract: It is the key fact for the accuracy of traffic simulation that the cellular automation model of traffic flow could simulate the real hybrid traffic flow. This article shows the method to improve cellular automaton model about two-lane hybrid vehicles based on passive lane-changing, to propose the avoidance rules about the prospective following vehicle, and to suggest the cellular automaton model and evolution rules based on the prospective following vehicle’s avoider. The simulation results show that the erroneous judgment rate for changing lane is the important facts for the state of two-lane hybrid traffic flow, and the accuracy of the simulation is improved in this article.

Abstract: File-propagation and replication is a key problem of P2P Network. In this paper, epidemic model with spatial dynamics was adopted, and a file-propagation model of P2P network is proposed. In this model, most states of nodes are fully considered, and simultaneously, the behavior of propagation and replication in the file-sharing system in P2P network are researched and simulated. Final simulation results testify that the model accords with practice perfectly.

Abstract: Inventory routing problem is one of the key issues to achieve integrated management of logistics. Solving this problem effectively, we can improve vehicle utilization, and reduce distribution costs. This paper, concerning the problem in inventory routing of multi-variety, multi-vendor to multi-customers, proposed heuristic algorithm based on greedy rules. The core strategy of the algorithm is to choose circularly the current lowest unit cost routine ---Hamilton delivery routes. Simulation shows that the algorithm reduces the unloaded ratio of truck, raises the efficiency of truck delivery and saves transport costs.

Abstract: Though some algorithms about the minimum delay have been designed, there is no actual algorithm which could be used in a Mesh-based P2P streaming system without a set of specified neighbors as we know. The characters of delay in Mesh-based P2P streaming network need to be understood more thoroughly. Using capabilities model to reflect the relationship between nodes and chunks, we model the delay character in P2P streaming system to explain the tradeoff between delay and playback quality. Finally, we use a holes and repair approach to give a serial of principles about how to make the delay to be low enough with a high quality as a direction for future design of algorithm.