Advanced Materials Research Vols. 424-425

Abstract: Modern warfare has led the concept of remotely operated weapon station for increasing force protection while maintaining lethality. There is a need for an efficient embedded control system for certain kind of system. A design proposal of an integrated PC-architecture embedded control system for remotely operated weapon station is presented. The hardware of the system is based on the 486DX2 processor running at 100MHz with coprocessor, which is a Pentium class platform. Hardware/software co-design methods and tools have been discussed after the system configuration is decided. The software design consideration for the control system has been presented according to multi-task programming of VxWorks

Abstract: In the existing traffic engineering, information can only be transmitted in a single OSPF area. When there are multiple OSPF areas, the tunnel is difficult to establish. For this problem, combined with the existing OSPF technology on three categories LSA processing flow, in the right less impact on the relevant modules of the situation, solutions are proposed to achieve a particular area of traffic engineering information across the region spread to other regions in order to facilitate the establishment of range of the tunnel.

Abstract: Coal mining enterprises internal control risk management is a complicated system problem. The paper researched the internal control risk management system of coal mining enterprises by applying the system engineering theory and risk management method. And then the internal control risk management system has been established from internal control risk management process, risk management circle and risk management method. Furthermore, the every subarchitecture and the internal relation have been analyzed. Finally, from the business process of coal mining enterprises, the implementing scheme of internal control risk management has been designed form workers, equipment, environment and management aspects

Abstract: In this paper, a great large of point cloud data obtained by a laser scanner is simplified firstly, then geometry analysis method is applied in order to fit the trunk diameter, lastly, utilizing timber volume formula, the standing tree volume can be calculated and furthermore, forest inventory also can be computed easily. As shown by the test, the standing tree volume can be worked out fast and exactly and the error of which is less than 3 percent

Abstract: We previously analyzed the dynamic flux distribution and predicted glucose, biomass concentrations of metabolic networks of E. coli by using the penalty function methods. But the consequences were not as well as we expected. In order to improve the predicated accuracy of the metabolite concentrations, instead of using Runge-Kutta algorithm, we apply Adams methods which belong to the multi-step ones in the process that solves the dynamic model of metabolic network of E. coli and obtain better simulation results on the metabolic concentrations.

Abstract: In this paper, based on Ansys the deformation and stress for high pressure long cylindrical natural gas storage tank are analysed. And obtain the stress distribution of the storage tank. The changes of stress are analysed in thickness direction and along the rigid wall. The results and theoretical results are accordance. On this basis, the modal analysis of tank is completed too. Obtained the tank various order natural frequency and vibration mode. The calculation results show that the method is effective and provide the theoretical basis for high pressure tank design

Abstract: The spayed concrete is blended with steel fiber,which can improve tensile strength and higher resistance to deformation. This method is applied to support underground chamber surrounded by weak wallrock or chamber bearing great load. this paper accounts for the theory of sprayed steel fiber concrete and its application in tunnelling construction.And aslo, its comprehensive economic effect will be emphasized in comparison with jetting concrete net from the aspects of technology,safety and economy.

Abstract: According to the drilling of thick paper, this paper has studied the design mechanism and principles of waste money drilling machine. It mainly studies the technological process, thick paper processing drill, rotary speed and cutting force and other experiments; It also researches the orientation of "waste money"— clamping institutions, spindle box structure design; Because this design is mainly used for mass production and a large number of drilling, we should choose durable power source, and as a result, hydraulic system was chosen, Then we study the principle and system design of hydraulic system, select various valve bodies according to the hydraulic pump flow characteristics, so as to complete the feeding and clamping action of hydraulic system. Recycling waste money may save resources. Compared with previous piercing, waste money drilling processing not only reduce noise and improve production efficiency, but also reduce labor intensity, and is very favorable, beneficial to security of the processing, the check and environmental protection.

Abstract: With the accelerating developments of the current urbanization in the world and the increasingly severe environmental problems, the research on ecological service function of urban green spaces has been the frontier subject for the international ecology. The urban green spaces are a special underlying surface, an important composition of the urban natural eco-system. For the urban green spaces, the crowns of the plants can block, absorb and reflect the radiation from the sun to obviously reduce the sunshine penetrating to the ground through the spaces of the leaves, which can reduce torridness and sever sunshine and enhance people’s environmental comfortableness. Hence they are entitled with a significant ecological service function. The research focuses on classifying the shading effect of various urban green spaces in summer in Hangzhou in order to realize the amount situations of shading effect of urban green spaces in summer in Hangzhou and to provide inspiration and reference for elaborately classifying and evaluating service function values of shading effect of ecological service function of urban green spaces

Abstract: A simple and convenient method for the determination of μ g/l level in the real drinking water bromate overcome traditional methods of defects. Argentina by electrolyzing the smallest electrode interference and then focus on extra chlorine use microwave technology foundation evaporation and concentration, the proposed method is very sensitive to the determination of trace level of the sales of the drinking water. And a microwave oven, drinking water ten times the sample can be concentrated in 10 minutes can get and good recovery. Treatment of the silver electrode, the method of interference, and can effectively eliminate the Cl- This method is successfully applied to the detection in water sample level in the trace. It is the advantage of the operation is simple, fast, high sensitivity, accurate results. This method can be applied widely, suitable for trace analysis of water samples.