C. Douglas, Y. Efendiev, R. Ewing, V. Ginting, R. Lazarov, M. Cole, and G. Jones ? 1 Department of Computer Science, University of Kentucky, Lexington, KY 40506-0045 2 Department of Computer Science, Yale University, New Haven, CT 06520-8285 3 Department of Mathematics, Texas A & M University, College Station, TX 77843-3404 4 Institute for Scientific Computation, Texas A & M University, College...

In this paper, we analyzed the influence of time required to begin coping behaviors of managers in chemical terrorism. In order to calculate the damage of chemical attacks in a major rail station, our network model-based pedestrian simulator was applied with hazard prediction systems of indoor gas diffusion. Our analysis was used for enlightening the managers of the rail station in a tabletop e...

Through the research, design datas are provided for the enhancing product performance and competitiveness. In the paper, based on problems that exist in the construction of concrete mixing station, actual conditions of Tengzhou city and research results in China United cement plant, concrete mixing station’s overall structure is designed. And the structure’s harmonic response and dynamic proper...

This research aims to study the lead pollution in the air of Babylon governorate that resulted generally from vehicles exhausts in addition to industrial and human activities.Vehicles number in Babylon governorate increased significantly after year 2003 that resulted with increase in lead emissions into the air.Measurement of lead emissions was done in seven stations distributed randomly in Bab...

vegetation cover on a variety of different land uses in different parts of a city creates different forms of heat flow that this, in turn, generates the main framework of urban microclimate. the objective of this study is to survey the effect of land cover type on air temperature in the isfahan city. to do this, five regions in the isfahan city with different land cover type were selected. in e...

Industrial plants are subjected to very dangerous events. Therefore, it is very essential to carry out an efficient risk and safety analysis. In classical applications, risk analysis treats event probabilities as certain data, while there is much penurious knowledge and uncertainty in generic failure data that will lead to biased and inconsistent alternative estimates. Then, in order to achieve...

a Center for Natural and Technological Hazards and Department of Geography, University of Utah, Salt Lake City, UT 84112, USA b United States Geological Survey, Southwest Biological Science Center, Sonoran Desert Research Station, BioSciences East Building, Tucson, AZ 85721, USA c Department of Biology, University of Utah, Salt Lake City, UT 84112, USA d Department of Soil, Water and Environmen...

This paper mainly aims at solving the problems of sampled data synchronization in digital substation based on Filed Programable Gate Array (FPGA). Compared with traditional substations, the design achieves data synchronization without connecting an external clock. Synchronization algorithm is based on Newton interpolation algorithm. The system consists of multi-channel data sampling module, syn...

While the literature emphasizes the ‘global spread’ of gated communities, the physical form of gating exists in the history for a long time. The gate and walls can at least date back to the walled city when the city was used for military defence. Even in the socialist period when egalitarianism was the predominant ideology, enclosed workunit compounds were widely built. However, gating was not ...