Key Engineering Materials Vols. 467-469

Abstract: Paper removed at author request due to copyright issues.

Abstract: In this paper, assumed the users are partially altruistic，the altruism level of different user class has difference. The user’s perceived cost assumed to be a linear combination of selfish component and altruistic component. A variational inequality (VI) model is investigated to formulate the user’s route choice behavior in non-uniform altruism transportation network with fixed demand. The price of anarchy caused by this kind of behavior is analytically derived and this result takes some known results in the literature as its special cases.

Abstract: In electronic business environment, it is critical for an enterprise to assess information systems security (ISS) risks. In this paper, we propose a hybrid approach for ISS risk assessment. Given there is a great deal of uncertainty in the ISS risk assessment, in the hybrid approach, we combine the evidence theory with fuzzy sets to deal with the uncertain evidence found in the ISS risk assessment. The proposed approach provides a new way to define the basic belief assignment in fuzzy measure. Moreover, the approach also provides a method of testing the evidential consistency, which can reduce the uncertainty derived from the conflicts of evidence. Finally, the approach is further demonstrated and validated via a case study, in which the effectiveness of the proposed approach is evaluated by comparing it with other methods.

Abstract: In this work, a feature extraction approach based on improved Locally Linear Embedding(LLE) is proposed. In the algorithm, tangent space distance is introduced to LLE, which overcomes the shortcoming of original LLE method based on Euclidean distance. It can satisfy the requirement of locally linear much better and so can express the I/O mapping quality better than classical method. Simulation results are given to demonstrate the effectiveness of the improved LLE method.

Abstract: The paper presents the context of the micro-simulation on passengers of high-speed railway station, designs the micro-simulation system, meanwhile, divides the system into four modules, they are: passengers setting module, station design module, passengers simulation module and results output module. The functions and detailed contents of the modules are described, at the same time, the models of each module involved are introduced, and the relationship between modules are represented.

Abstract: Aiming at the problems of the interactive communication among infrared multi-sensors under the electromagnetic interference, an interactive network is developed based on CAN bus controller which is embed in TMS320F2812 DSP. After the hardware design of the network system is introduced, a application layer protocol of CAN bus network for simple and effective communications is proposed. Following the protocol, software program is designed, and the transmission efficiency is improved obviously. Finally, the relationship between nodes and baud Rate is shown after analyzing the transmission time delay.

Abstract: To detect moving objects from a video sequence is a fundamental and critical task in many computer vision applications. For China high-speed railway transport hub video surveillance system, we need a stable, fast and accurate moving object detection method to promptly find the congestion of passenger flow and other dangerous in hub. Through the comparative study on moving object detection, we find the average/median filtering is the most appropriate method for China high-speed railway transport hub video surveillance.

Abstract: For suppressing torsional vibration on main driving system of the rolling mill, the paper studied modal control and control model of torsional vibration. Dynamic disturbance of the rolling mill main driving system were induced by small perturbation from torque fluctuation. Modal control analysis were investigated on include amplitude and phase response on reference change or load change, bode diagrams, and time domain simulations. Torque fluctuation reflects non-steady cyclical or quasi-cyclical characteristics on the torsional vibration system. Control model had been reconstructed from inversion of dynamic topology theory. The result of simulation showed that the established control model for suppressing torsional vibration was effectiveness. Feedback control experiment of nipping and throwing steel on the rolling mill’s main driving system using reaction control tactic was proved it could be easy input and output for controling to suppressing vibration.

Abstract: Smurf attack belongs to popular Denial-of-Service (DoS) attack, and they can cause devastating impact on computer systems. Inspired by the principles of immune danger theory, a novel risk evaluation model, referred to as DTRESA, for smurf attacks is proposed in this paper. Within the presented model, dangerous smurf attacks are compared to bacterium (or virus) of the immune danger theory, which induce danger signal by simulating cellular distress or cell unnatural death; through immune recognition of artificial lymphocytes, the attacks are detected, and the attack risk is evaluated by calculating the danger signal of host computers. Simulation results and theoretical analysis show that the proposed model is feasible. Thus, it provides a novel solution to DoS detection and computer network security risk assessment.

Abstract: Definite shape and thickness of chipboard, followed a given size, can be divided in many parts and manufactured kinds of paper products, such as packing box and cushion. However, the species of packed cargo appear a lot, with the change of chipboard size. So a reasonable chipboard-splitter should be designed to meet packing measurement and reduced chipboard throwaway. After a chipboard-splitter was designed and introduced its operating principle, simulation software was used to design and optimize knife saw of chipboard-splitter. At the same time, force analysis of important structure had been put in practice to meet the intension demand. At last, the device has been put into operation and gotten a good effect.