浅谈煤制甲醇项目的煤气化技术选择

石油是一种不可再生资源,必须要寻求新能源的制造方法,其中,甲醇的大规模生产也受到了各个国家有关部门的高度重视。本文主要从原料、产品与投资方面几个方面对多喷嘴对置式水煤浆气化技术、Shell技术、BGL煤熔渣气化工艺进行分析,得出最优的生产技术。     

浅谈对电厂基建和技改工程竣工图管理的想法

工程档案,建设工程档案是由工程文件经鉴定、整理、归档后形成的。项目工程档案主要包括工程前期文件、工程施工文件、工程竣工验收文件、竣工图及设备厂家资料图纸等。     

Natural and anthropogenic influences on the year-round temperature dynamics of air and water in Postojna show cave,Slovenia

Air and groundwater temperatures were measured in a rimstone pool in Postojna Cave, to advise evaluation of the impact of natural and anthropogenic influences related to heat being initially transmitted into cave air by visitors. Such heat can accumulate both in the rock mass and in water. Results show that attention must be paid to temperature changes of rimstone pool water rather than those of cave air, especially during the winter. Thanks to good ventilation deep inside the cave, short-term air temperature increases related to higher visitor numbers have not influenced flowstone precipitation or the cave fauna. However, this situation might change if winter visitor numbers increased greatly. This study does not support a suggested increase in winter visits (currently the tourism low-season) and reduction of summer visits (currently the tourism high-season).     

Development by Decree: The Limits of ‘Authoritarian Modernization’ in the Russian Federation

The apparent success of state‐managed market economies has challenged the conventional wisdom that liberal democracy is the norm around which all capitalist countries tend to converge. If the link between democracy and development is more tenuous than we often think, the authoritarian variety of capitalism is not without its own problems, especially with respect to political legitimacy, innovation and regional development. This article explores these issues through the prism of ‘authoritarian modernization’ in Russia. We argue that this strategy is unlikely to succeed, even in its own terms, because (1) the political system fails to create favourable institutional conditions for modernization; (2) the economic system is beset by deeply embedded structural problems; and (3) the regional policy apparatus is torn between the goals of spatial equalization and spatial agglomeration. The article focuses on the Skolkovo Innovation Centre, the main symbol of Russian modernization, to demonstrate the territorial repertoire of the mega‐project, a state‐sponsored development strategy to create innovation clusters from above because they cannot emerge from below.     

基于企业级的物流项目管理体系构建设计

针对物流项目的综合性和独特性特点，考虑采用项目管理方法构建多功能、多层次的综合管理体系。在调研现有项目管理体系的基础上，对企业级物流项目管理体系总体架构进行设计，并完成各子体系的构建。     

斯里兰卡中资项目机遇与风险分析

近年来,中资企业在斯里兰卡承接及投资项目日益增多。中斯合作关系密切,发展潜力巨大。中资项目在斯机遇和挑战并存,文章分析中资项目在斯里兰卡的风险点,并对重点投资潜力行业及区域提出建议。     

辅助生产计划成本分配法教学改进小议

辅助生产计划成本分配法在教学过程中往往出现学生困惑重重无法理解,而教师是努力解释却又无法解释清楚的困境。因此,在不考虑反映和考核辅助生产车间业绩的情况下,教师可以重新对计划成本分配法厘清思路,不需要交互分配,只需将生产费用按计划分配率根据外部各受益对象的实际耗用量直接分配,简化核算又不影响最终分配结果,使学生较快理解和掌握。     

浅谈±660kV宁东-山东精品工程中的创新与发展

创新是一个民族进步的灵魂,是一个国家兴旺发达的不竭动力。文章介绍了±660kV宁东-山东精品工程中的创新与发展。     

关于石油天然气工程建设造价管理工作与其存在问题的探究

本文针对石油天然气工程造价管理以及所存在的问题进行探究。     

基于遗传算法的锅炉水位控制器设计

文章分析了锅炉水位控制系统的基本原理及结构,针对传统PID控制器的不足之处设计了基于遗传算法的新型锅炉水位控制器,在此基础上搭建了锅炉水位控制系统。最后,通过仿真验证了该水位控制器在改善水位系统稳态误差及动态超调方面均具有较好的作用。