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The constraints to manage in a telecom splitter design are numerous and according to a given splitter structure, the choice became difficult. The paper proposes a software tool allowing the design of such filters. This one carries out the modelling of the electrical circuit configurations, and creates the corresponding computation code, used for simulation or optimisation. The methodology is detailed...
In order to improve the stability, validity and reliability of network management, the management architecture of multi-agent network is analyzed, and the communication and language between the multi-agent are introduced. Finally, a Distributed Network Management Framework based on multi-agent is presented. The functions of each module and mutual cooperation process in the framework are outlined....
Combines three programs based on Vague Set application papers, we obtain a complete program of Vague preferred method. Vague proposed single value data to the data conversion formula for the similarity measures between Vague sets formula, they become the preferred program method Vague technical support. Through the optimal selection of small hydropower installed capacity of the discussion, the conclusion...
Evolutionary testing has successfully applied search based optimization algorithms to the test data generation problem. The existing works use different techniques and fitness functions. However, the used functions consider only one objective, which is, in general, related to the coverage of a testing criterion. But, in practice, there are many factors that can influence the generation of test data,...
This paper describes a graphical method for the optimization of Quadrature Voltage Controlled Oscillators (QVCOs) based on the coupling of two LC-tank VCO. A three-dimensional phase noise analysis diagram and graphical optimization approach is presented, to optimize QVCO phase noise while satisfying design constraints such as power dissipation, tank amplitude, tuning range and start up condition....
This paper firstly examines the traditional vehicle styling evaluation methods and issues, and then presents a new approach which uses ANN (artificial neural network) to build an expert system for bus styling evaluation. It describes the key technical issues of quasi-three-dimensional bus styling evaluation expert system from data collection, graphical pre-processing, graphics feature extraction,...
Nowadays, many industries use the Computerized Numerical Control (CNC) for Printed Circuit Board (PCB) drilling machines in industrial operations. It takes a long time to find optimal tour for large number of nodes (up to thousands). To achieve more effective results, optimization systems approach is required to be equipped in drilling machine. Euclidean Traveling Salesman Problem (TSP) is one of...
Particle swarm optimization (PSO) is an optimization algorithm that has received much attention in recent years. PSO is a simple and computationally inexpensive algorithm inspired by social behavior of bird flocks and fish schools. However, PSO suffers from premature convergence, especially in high dimensional multimodal functions. To improve PSO performance on global optimization problems, this paper...
The design of machine tools activity is an area with hundreds of years old. With the development of CAD/CAE systems, the engineers' work was greatly simplified. However, CAD/CAE systems are unable to overcome a critical threshold, thereby leaving the designer with many problems to be solved. Artificial intelligence field is also very exciting to develop this area. This paper presents a first attempt...
In order to optimize the stiffness of car body, Latin design of experiment method is taken to design sample for 300 times. Fitting approximate models of response surfaces with moving least squares methodology are inducted in torsion stiffness optimization, in which the disadvantage of lower precision with least squares methodology is avoided and the relative error percentage is less than 3%. Adaptive...
This paper proposes a simple and practical RAID reconstruction optimization scheme, called JOurnal-guided Reconstruction (JOR). JOR exploits the fact that significant portions of data blocks in typical disk arrays are unused. JOR monitors the storage space utilization status at the block level to guide the reconstruction process so that only failed data on the used stripes is recovered to the spare...
Wi-Max is the fourth generation of high speed broad band internet connection. With a suitable antenna it can cover L.O.S. thirty miles with 5 GHz at the speed of 70 Mbps. It will be available to the public at very low monthly subscription, thus, over riding the high cost of internet connection . The key element for Wi-Max applications is the construction of a proper beam forming antenna. In this article...
Interpretation and basic block translation (BBT) are two typical strategies for cold code emulation in a dynamic binary translation (DBT) system. More and more DBT systems employ BBT as the generated native code runs more efficient than the interpretation routines. We observe that BBT's high efficiency is based on those special hardware assists. With certain simple hardware techniques, interpretation...
High efficiency and low power consumption are among the main topics in embedded systems today. For complex applications, off-the-shelf processor cores might not provide the desired goals in terms of power consumption. By optimizing the processor for the application, one can improve the computing power by introducing special purpose hardware units. In this paper, we present a case study with a possible...
In this paper, we consider a finite n-person non cooperative game. A non-linear optimization model is formulated in a space of dimension equal to sum of the total number of pure strategies in the game and the number of players. A Nash equilibrium of the given game is shown to be equivalent to an optimal solution of the optimization model with zero optimal value. The algorithm is coded in MATLAB using...
Electric field optimization is the key task for vacuum circuit breakers design. By the electric field calculation, the isopotential of a semi-plane flat electrode with infinitesimal small thickness is almost hemicycle, and the figure of an actual shield should be what the isopotential rotates around its shaft for a circular course, but not other figures. Three common figures of middle shield have...
This paper is intended to serve as an introduction to the conceptual design of control system for a compact free electron laser (FEL) terahertz radiation source (FTRS). The general architecture of the control system is presented. The hardware components, software design, communications and subsystems are described in the paper. We also discuss a novel method of using Matlab Simulink\stateflow to simulate...
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