Advanced Materials Research Vols. 143-144

Abstract: Multi-Sinks wireless sensor networks, a current research focus, has better stability and effectiveness compared to the traditional single-SINK structure. To solve the problem how to complete the tasks within the possibly shortest time, a task scheduling algorithm(DMTA) based on divisible load theory in multi-Sinks wireless sensor networks is proposed. In DMTA, the tasks are distributed to wireless sensor network based on the processing and communication capacity of each sensor by multiple Sinks respectively. By removing communications interference between each sensor, reduced task completion time and improved network resource utilization achieved. Simulation results show that DMTA reasonably distributes tasks to each node in wireless sensor networks, and effectively reduces the time-consuming of task completion.

Abstract: With the increase request of strip quality, the roller eccentricity has become the important factor of influencing product quality. On the practical model of Cold-rolling Mill of 300, this paper establishes eccentricity compensation control practice of Cold-rolling Mill of 300 which applies wavelet transform method. Based on mufti-resolution decomposition of roll force signal by use of wavelets, eccentricity signals are separated from disturbances and noise，and self-optimization is employed to real-time control the roller eccentricity. The results show that the method is effective.

Abstract: At present, the automated real-time embedded software testing is a hot topic. Automated testing is essentially based on user programming and how to build test script quickly and effectively is one of the key problems to be resolved. In this paper, the object-oriented and framework technologies are introduced into the real-time embedded software testing field and the real-time testing object framework (RT-TOF) is studied firstly. And then, the test script generation process based on RT-TOF is proposed. Furthermore, the design of RT-TOF is put forward. Finally, the test script sample of the avionics embedded software system testing is given. Practical application of RT-TOF in engineering shows that the method proposed in this paper can improve the efficiency of automated testing greatly and the test script based on RT-TOF has better maintainability and reusability.

Abstract: Realize the basic process of fracture analysis in ANSYS. The fore treatment program of crack propagation simulation is compiled by parameterization method of apdl. The calculation and analysis is automatic. ANSYS is well for simulating the structures which contain cracks and bugs. When the parameters are suitable, the propagation of cracks can be simulated well in ANSYS. The different phases of crack propagation are simulated. To compare with the results by theory, perfect the formation process and mechanism of splitting cracks.

Abstract: This paper presents a new approach for bidirectional interval-valued fuzzy reasoning by employing a weighted similarity measure between the fact and the antecedent portion of production rule, in which the vague terms appearing are represented by interval-valued fuzzy concepts. One numeric example is given to demonstrate the reasonability and flexibility of our proposed approach.

Abstract: In this paper, an artificial glowworm swarm optimization algorithm for solving 0-1 knapsack problem is proposed, and the detailed realization of the algorithm is illustrated. According to intelligent algorithm for knapsack problem, the question of sensitive parameter’s choice is avoided under the greed idea. Simulation results show that the artificial glowworm swarm optimization algorithm for solving 0-1 knapsack problems is feasible and effective.

Abstract: In this paper, we introduced a kind of low cost security coprocessor architecture for portable electronic devices, whose core is the reconfigurable, scalable and tightly coupled security coprocessor architecture. The coprocessor integrates the resources of system effectively, and greatly reduces the power consumption as well as the area of the chip in the case of ensuring the data throughput needed of portable electronic devices.

Abstract: With the rapid development of modern science and technology, the importance that control theory will be applied to mechanical engineering is increasingly evident. Matlab is a high-performance language for technical computing and Simulink provides a graphical user interface for building models as block diagrams. This article analyzes the application of the simulation software in mechanical engineering by taking position control servo system of CNC machine tool for example. Matlab also provides a function for frequency domain analysis, which has some functions of directly computing frequency response of systems, also drawing of some typical frequency response curves of the control system, and greatly simplifies the process of frequency-domain analysis. System stability can be judged from system frequency characteristic curve. According to judgment of stability of the system, characteristics of the system is easy to be observed by the simulation results, it can greatly improve quality and reliability of the programming with a friendly graphical user interface.

Abstract: Physical education is an important component of school education, as a leader of school must be updated ideas and attach the development of each discipline. At the same time physical education teachers can draw attention of school leaders through to their own behavior and the actual work results, through publicize physical education assignment, role and the important position in school education to raise awareness of teachers and students to the sports so that they respect and understand the work of PE teachers and less misunderstand and prejudice. At the same time, it will cause some subjective psychological factors that motivation of physical activities, volitional quality of student and anxiety mood

Abstract: 3D models play an important role in many applications, so there is an urgent need for an effective content based 3D model retrieval system. A variety of 3D model retrieval methods have been proposed in recent years. Shape distributions show superiority over other methods due to ease of computation and invariance to Euclidean motion, but there is poor retrieval performance for the loss in information. This paper introduces two model-partitioning methods to improve shape distributions, in which the two enhanced descriptors are combined with a fuzzy feedback method. Experimental results show that the proposed methods can achieve better retrieval performance.