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The strength scaling of composite laminate design has variable response in sub-laminate and ply level scaling methods. The fact is proved experimentally but the reason for this variable response is authentically not known yet. According to dimensional analysis the strength should be invariant to scale and according to Weibull theory strength changes but it does not differentiate between sub-laminate...
A lot of masonry buildings have being collapsed during Si Chuan Earthquake (SCE) in western China May 12, at the same time others have being injured on several levers. Now how to evaluate reliability and fragility of the masonry buildings and search reasonable design practice of seismic strengthening of these buildings is urgent mission. One goal of fragility analysis is set up relation between vulnerability...
Anomalous X-ray pulsars and Soft Gamma-ray repeaters are young pulsars with the dim radio emission, and they have been rapidly spun-down to the range from 5 to 12 s. Many experts proposed that they are neutron stars with ultra-strong magnetic fields (ges 1014 G). From the modified spin down relation of pulsars Pdot prop P2-n, we find that Vela pulsar would evolve into the classes of magnetars under...
This paper presents the use of a simulator of the hydroelectric plants operation as tool for analyzing data. Two approaches are shown. In the first the simulator must reproduce the water discharge trajectory recorded by the plant. In the second the simulator's aim is reproduce the generation trajectory of a certain operation period. The two methods for analyzing data are described and the advantages...
A tactical communication equipment simulation training platform aiming at the difficult problem of training is presented. Firstly, platform is built based on HLA and its framework is designed to a hierarchical structure. Secondly, models of the training equipments are created with software of GL Studio and Multigen Creator. The key technology of the platform including single equipment 3D modeling...
Analyzing assembly and disassembly is a key factor for not only the research of life cycle engineering design (LCED) of the automotive products, but also the important fundament of good manufacturing, maintaining, recycling retirement treating and lifecycle assessing for these products. As for the modern automotive product, its designing, manufacturing, maintenance, recycling deposal, Lifecycle Assessment,...
Condition codes (CCs) are special architected bits that characterize instruction results. Reducing the overhead of emulating condition codes is a critical performance issue in binary translation. In this paper, we propose a two-phase optimization approach for condition codes, which has been implemented in Crossbit-a machine adaptable dynamic binary translator (DBT). First, redundant flag computing...
Based on many model tracking methods, this paper presents a new moving vehicle model. In this new model, unscented Kalman filter is used to track the moving vehicle. The model is simple but more accurate to describe the characters of moving vehicle. The simulation and experiment results of the model indicate that the algorithm efficiently solves the problem of nonlinear moving object tracking.
With the widespread use of the Internet, reducing power consumption to extend network lifetime while maintaining the communication connectivity and covering the target region completely has become one of the most important challenges in designing future Internet networks. After the comparison of some existing methods, such as measuring networks state and evaluating flow-jamming attack on network flow,...
In view of design characters of CCBII brake, a state monitor system based on multi-hierarchy evaluation architecture and fuzzy evaluation method is given. Block diagram of brake state monitor system is given, and design features and functions of each part are described, design methods of factor set, safety degree set and itpsilas criterion in multi-hierarchy evaluation system are discussed. Key points...
This paper analyses the function and performance of the software of RBC (Radio Block Center) subsystem in CTCS (Chinese Train Control System) level 3. It describes the formalization of RBC subsystem based on the theory of Timed automata. EQRS timed automata network model is built and based on the simulation and analysis of RBC subsystem, the safety and BoundedLiveness of RBC is validated using UPPAAL...
The performance of PCA and FDA based fault detection and diagnosis procedures could deteriorate with the violation of the normality assumptions made during conventional approaches. The consequence is a reduction in accuracy of the models and efficiency of the methods, which results in an increase of misdetection and misclassification rate. A robust method is proposed to deal with the normality violation,...
With the increasing complexity of the product, designers have to spend much time and money in product design. On the way to find the best solution, various simulation tools, such as CAD/CAE software, have been introduced into design process to simulate specified characteristics. In order to drive all these tools to work as a united simulation system, a kind of distributed computing model must be designed...
The fishing capacity and capacity utilization for Chinese inshore fleets in the latest 13 years were measured by DEAP computer program. Then the relevant models between capacity output, capacity utilization and income were set up by the software of Eviews. Making use of EXCEL again, the function of collecting tax for controlling fishing capacity was quantitative simulated. The result showed: tax system...
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