一、 主要用数学的方法研究各种系统的优化途径及方案，为决策者提供科学决策的依据。 二、Operation Research ，OR 三、主要研究对象：主要为各种有组织系统的管理问题及其生产经营活动

Who are we? Systemflow began as a simulation services company founded in 1993, and launched a software product development operation in 2000 The company founder worked for a simulation software vendor from 1986-1993 and served as product manager for a new animation software package there

第一章 生产系统及其管理 第二章 生产过程组织 第三章 生产过程时间组织 第四章 生产过程空间组织 第四章 流水生产组织 第五章 生产计划(Production Plan) 第六章 生产作业计划 第七章 独立需求库存控制与优化 第八章 精益生产(Lean Manufacturing) 第九章 生产现场管理 第十章 劳动组织和劳动定额 第十章 劳动组织和劳动定额

4.1 Function The purpose of the operation is either to liberate a liquid from strange particles, or to separate two intermixed liquids

3.4 ALFA-LAVAL Separator MAPX 207S-20 general information 3.4.1 MAPX information Contents – Correct installation, suitable treatment of the liquid before and after the passage through the machine, – correct operation and handling of the machine according to the directions given in instruction book, – cleanliness, carefulness and methodical overhaul are factors of the greatest importance for ensuring the best machine function and intended results

The main objective of this section is to make you acquainted with the relevance of fuel parameters on: Abnormal ignition and combustion. Wear, piston ring collapse and breakage. Gas leakage. Ignition, combustion and exhaust gas emission. Engine damages and operational problems. Prevention of engine damages with off spec. fuels and to recognize their impact on the operation of marine diesel engines

Operations used for the treatment of wastewater in which change is brought about by means of or through the application of physical forces are known as physical unit operations. Because physical unit operations were derived originally from observations of the physical world, they were the first treatment methods to be used. Today, physical unit operations, as shown on Fig. 5-1, are a major part of most wastewater

Treatment methods in which the application of physical forces predominate are known as physical unit operations. Examples of physical unit operations include screening, mixing, sedimentation, gas transfer, filtration, and adsorption. Treatment methods in which the removal or conversion of constituents is brought about by the addition

Often in multiple-effect evaporators the concentration of the liquid being evaporated changes drastically from effect to effect, especially in the latter effects. In such cases, this phenomenon can be used to advantage by staging one or more of the latter effects. Staging is the operation of an effect by maintaining

Liquid-liquid extraction is a unit operation frequently employed in the pharmaceutical industry, as in many others, for recovery and purification of a desired ingredient from the solution in which it was prepared. Extraction may also be used to remove impurities from a feed stream