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of fuzzy theory in software project risk assessment TANG Aiguo1, 2, 3, HU Chunhua1, 2, 3 (1. Key Laboratory of Hunan Province for Mobile Business Intelligence, Hunan University of Commerce, Changsha 410205... University of Commerce, Changsha 410205, China) Abstract: Considering that many uncertainties always exist in the development and management process of software project, the awareness and ability of software......
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law cut-off (PLCO) material model in Procast software was used to simulate the thixocasting process. The thixocasting process was simulated. The results show that the reasonable technology parameters...; AISI420 stainless steel; numerical simulation; Procast software 1 Introduction The semi-solid casting (thixocasting), which can realize microstructure refinement, low loading and near net shape......
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Engineering, Central South University, Changsha 410083, China) Abstract: By the aid of the international mining software SURPAC, a geologic database for a multi-metal mine was established... Nickel International and BHP-BILLITON Mining Mult- inational Corporation, applied the mining software to build the 3D deposit model to realize the dynamic management of the production and the reasonable......
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grinding machine works, the motion equations of the ball lapping were established and the law of the motion was revealed by the MATLAB software. In order to prevent balls from slipping when rotary...; groove; MATLAB software 轴承是当代机械设备中一种举足轻重的零部件.它的主要功能是支撑机械旋转体,降低设备在传动过程中的载荷摩擦因数.而钢球作为球轴承的重要组成部分,其加工具有独特的专业化特征,且加工的质量将在很大程度上影响球轴承的使用寿命和可靠性[1-5].研磨是钢球加工的最后1道工序.在此期间,研磨盘,磨粒对球坯进行挤压和刮擦,去除其表面的加工余量,从而提高钢球的球度和降......
砂岩铀矿床地浸开采经济评价系统软件 姚益轩1,阙为民1,苏学斌1,谢卫星1 (1.核工业铀矿开采研究所,) 摘要:砂岩铀矿床地浸开采经济评价系统软件为研究矿床的经济价值,定量地评价地浸开采的技术经济可行性和工艺优化决策提供了方便快捷的技术手段.在指定矿床条件和矿山建设规模时,系统可以完成投资估算分析,产品成本预测,并在此基础上,通过现金流量分析,最终给出反映项目经济可行性的动态和静态经济指标.系统能够满足多工艺,多层次用户和不同阶段经济评价的需要,具有广泛的适用性.介绍了该系统的特点,数据输入与要求,系统主要功能,结构与支撑环境. 关键词:原地浸出; 砂岩铀矿床; 经济评 价; 系统软......
for the consideration of uncertainty in decision making supported by Life Cycle Assessment[J]. Environmental Modelling & Software, 2007, 22(2): 167-176. [22] 毛一凡, 岳秀清, 王剑飞, 仇 昊. 基于Analytica的作战决策分析模型构建与仿真[J]. 计算..., 2007, 30(5): 1137-1142. [24] 阚海东, 陈秉衡, CIFUENTES L. 利用Analytica软件建立大气污染健康危险度评价系统[J]. 卫生研究, 2004, 33(2): 256.KAN Hai-dong, CHEN Bing-heng, CIFUENTES L. Utilizing Analytica software to establish air......