Based on the modern management theory , some mathematical modelings are constructed by system engineering theory , rough set theory , gray system theory , avail theory and neural network theory in this dissertation . it can resolve some actual problems , for instance , forecasting machine amount , agricultural machine power and prices . certainly , the system can transfer , save , organize and analyze all kinds of information about agricultural mechanization equipment , and the result is very desirable 本文在现代管理理论的基础上,运用系统工程、粗糙集理论、灰色理论、效用理论、人工神经网络等方法,进行数学建模,对未来农机需求、农机总动力、农机价格等问题进行探讨,并应用到农机装备管理信息系统的各个方面,对农业机械的各种信息进行传输、存贮、组织和处理分析,最终取得了较为理想的结果。
Based on analyzing the factors that influence the military uav operational effectiveness and by taking advangtage of system engineering theory and ahp ( analytical hierarchy process ) method , a structural analysis and calculating models for uav system operational effectiveness which supported by the ground information system is proposed 摘要在分析影响军用无人机作战效能因素的基础上,应用系统工程理论和层次分析方法,提出了一种基于地面信息系统支持下的无人机系统作战效能的结构分析模型和计算模型。
The primary problems existing in industrializing large - scale distillation equipments are pointed out , the magnifying & energy saving distillation technology developed by tianjin university , such as low liquid - level gradient technology , uniform liquid - vapor distribution technology , anti - clogging technology and a series of tower internals technology , on the basis of modern mass transfer theory hydrodynamics calculation hydrodynamics & process system engineering theory , axe introduced 针对蒸馏装置大型化过程中面临的问题,本文提出了蒸馏过程大型化理论和节能策略,开发出了低液面梯度技术、气液均匀分布技术、抗堵塞技术以及与此配套的一系列塔内件技术,形成了关键技术的系统集成,显著降低了过程能耗。