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91. Land resources inventory short-periodically, database building and updating is the basical task and important prerequisite of land optimum utilization and scientific management. 92. This paper discusses the composition and optimum design of the computer originated holographic optical elements (COHOE). The preliminary experimental result with a special wavefront is presented. 93. The results show that beam divergence of the system depends mainly on the extraction perveance and voltage ratio, and a minimum beam divergence can be obtained under optimum conditions. 94. ConclusionThe yielding content of bergenin was 0.23% at the condition of optimum parameters. 95. Based on the production practice, the mathematical model of the optimum stock of raw materials in paper making enterprises and its application are introduced with copper plate paper as an example. 96. The method is introduced that is the monitoring the concentration of gas basing on fiber sensor. The method has optimum sensitivity and momently testing. 97. It adjusted to this quality, individual revision algorithm new is developed, optimum hand being off-center revision is actualized . 98. Carefully chosen gear ratios and motor sizes provide optimum line speed and pull for specific applications. 99. Realizing furnace optimum control is based on combustion control, and that combustion control key is air fuel ratio control. 100. The interval of the time lag is identical of each lane controlled and when the input is a random sign, we can adopt quadratic function of optimum control and separation theorem. 101. The desired filter can be constructed by using the cross-cut and geometry method. The optimum prediction of the state vector is also given. 102. In this paper, basing on the maneuvering mathematical model, we consider the influence of environments, then choose the optimum rudders shifting time by the use of optimum seeking method. 103. Through the optimum searching, one may obtain the optimum frequency spacing, average damping ratio, tuning frequency ratio, and corresponding index representing the control effectiveness of MTMD. 104. The optimum operation conditions of ion - exchange are obtained by intercross experimental method. 105. Methods:Orthogonal tests were employed for optimum of extraction technology, the determination of the contents of Chlorogenic acid and Sinomenine were gained by HPLC and TLC-scanning respectively. 106. Optimum cast gate is chosen, with reject rate reduced to 3% and air pocket avoided. 107. This paper presents a method of optimum design for single-chamber double-thrust solid rocket motors. 108. The optimum threshold determined by the theory of image segmentation is to be the crossover point of the fuzzy enhancement, in order to enhance the contrast of image. 109. These include some new achievements such as multiobjective fuzzy optimum seeking theory and model for multilayer system, definition of objective weight etc. 110. The optimum dosing amount of coagulant which make the minimum resistance is in conformity with the optimum value which remove maximum dissolved organic matter in water studied. 111. Through calcareous milkiness liquid deposition, optimum reaction conditions were selected. 112. This paper accounts for the method of the optimum design of the main gearing system for universal machine tools, taking the radial drill for example. 113. The optimum extracting conditions of total flavones in Hibiscus manihot flower were investigated by using the orthogonal design. 114. Combining"imitation"and"material"is the optimum teaching model of design type of experiment on digital circuit. 115. The undetermined coefficient of the model is selected by using the orthogonal optimum seeking method, thereby the quantitative relation of the model is determined. 116. The conclusion about seakeeping optimum selection for replenishment is drawn that sea- keeping is sensitive to course, but has a wider range of velocity to select. 117. A robust design was developed to obtain an optimum value insensitive to variations on the variables within the feasible region by consideration of the uncertainties. 118. Variation diagrams in domains of feasible design and contour lines of optimization objective functions are drawn by means of PC-1500 computer. Obtaining optimum solution. 119. The optimum design was realized associated with the relationship among coil turns, exciting current and electromagnetic attraction force. 120. Optimum calculation using this model can define the optimal hob's structure parameter and cutting parameter.