As the offspring of division of dealing function, investment banking can decrease cost of information, contracting cost and other cost of insurance for acquiring firm and target firm.

投资银行作为交易职能分工的产物，它可利用专业化分工为企业并购节约信息搜寻成本、合同成本以及多种风险成本。

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It selects material cost as target function, core length and winding turns as variables to develop program for optimization design of single phase motors.

论文以材料费用为目标函数，铁心长度及绕组匝数为变量编制了计算程序，对单相电机进行了优化设计并给出了计算结。

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Using images' features such as gradient, mean, variance, degree of smoothing and texture characteristics to establish cost function may obtain the best results of target detection.

该方法利用动态规划理论中代价函数的建立过程来充分考虑图像中的灰度、均值、方差、光滑程度和纹理等多种特征，从而使目标检测的结果为最佳。

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