现阶段中国产业结构优化升级的制约因素与升级方向分析

当前中国处于经济社会发展的转轨时期,经济建设始终是兴国之要,加快转变经济发展方式是重点工作,产业结构优化升级是加快转变经济发展方式的主攻方向.本文分析了中国产业结构存在的问题;详细阐述了中国产业结构优化升级的制约因素及其影响,其中包括体制制约、生产要素价格不合理、自主创新能力低、产业投资效率与劳动生产率低、工业能耗水平不高、人力资本水平不高、企业利润空间受挤压等因素;最后指出中国产业结构优化升级的基本方向,提出产业结构优化升级的对策建议.     

基于ANSYS的工业机器人大臂的有限元静态分析

以自主研发运用于小型工业生产流水线的六关节工业机器人为研究对象。根据其性能和结构要求,确定该机器人结构的总体设计方案,运用Solidworks三维建模软件构建出所分析的机器人大臂的实体模型,并运用ANSYS分析软件完成对大臂的有限元静态分析,分析结果符合设计要求。本文的研究为六关节工业机器人部件设计的合理性和可靠性提供了科学依据,同时在大臂运用于不同负载情况时对其进行优化设计提供了理论依据。     

论东方贸易与英国工业革命

在新航路开辟后出现的东方贸易中西欧的劣势地位，成为推动西欧尤其是英国工业生产组织方式和技术改进的因素之一。东方商品输入带来的冲击对英国棉纺业最终完成技术突破并引发工业革命起了刺激作用。工业革命使东西方贸易地位发生了逆转，西方取得了对东方的优势。这也是日益整体化的世界各国各地区相互作用加强的体现。     

INDUSTRIAL PRODUCTION IN GERMANY AND AUSTRIA： A CASE STUDY IN STRUCTURAL TIME SERIES MODELLING

Industrial production series are volatile and often cyclical. Time series models can be used toestablish certain stylized facts, such as trends and cycles, which may be present in these series. Incertain situations, it is also possible that common factors, which may have an interesting interpretation,can be detected in production series. Series from two neighboring countries with close economicrelationships, such as Germany and Austria, are especially likely to exhibit such joint stylized facts.     

铝灰提取氢氧化铝的工艺设计

利用石家庄附近炼铝厂废弃的铝灰生产氢氧化铝,能够有效利用资源,消除环境污染。通过试验制备了氢氧化铝,中试试验结果表明,延长反应时间,加大碱的投入量,可以提高氢氧化铝的收率,回收的氢氧化钠浓缩后可以回用。在试验基础上,完成了工艺的整体设计。     

Correlation of rate of gas temperature rise with mass loss rate in a ceiling vented compartment

n-heptane pool fire and industrial alcohol pool fire in a ceiling vented compartment were studied experimentally. The parameters including mass loss rate and rate of gas temperature rise were investigated. The results suggest that the rate of gas temperature rise, whose varia- tions were highly coincident with those of the mass loss rate, minimized at the moment of extinction. The correlation of the rate of average nondimensional temperature rise with mass loss rate was established. It was found that the rate of average nondimensional temperature rise may be correlated with mass loss rate via the gas heat absorption coefficient which was found to be a quadratic function of the nondimensional heat release rate for the ceiling vented compartment under study. The present study may be of practical use for estimation of the time-dependent changes in mass loss rate from the gas temperature curves.     

CIP清洗系统在乳品行业的应用

乳品生产传统的清洗方式耗时费力，产品质量难以达到要求，根据我国乳品行业现状，研究设计了新型CIP原位清洗控制系统，介绍了系统的结构和工艺流程，最后介绍了该系统在实践中的应用．     

The Relationship Analysis between The Economic Growt and The Industrial Structure in Shandong Province

There is a close relationship between the economic growth and the transformation of industrial structure.This paper states the current situation of the economic growth and the industrial structure in Shandong Province,and analyses the relationship between them.Finally it proposes countermeasures which can help achieve a coordinated development of the economic growth and the industrial structure in Shandong Province.     

PLC结合工业组态技术精确控制抽料重量

在广泛的化工生产领域里,往往需要对大量的化工原料要进行快速定量抽料储存到指定的地方,以满足进行大量生产的需要。在传统的通过人工方式装料、抽料、搬运等,要花费大量的人力物力,且难以满足大量产品生产需要。效率低、成本大,且很多大量有毒、强腐蚀等化工原料对生产工作人员工的身体健康造成很大的威胁和危害。本文就以利用PLC结合工业组态技术自动进行快速的对化工原料进行定量抽取,并输送到指定的地方,以提高生产效率。     

河南省工业旅游及其发展战略研究

以＂全国工业旅游示范点＂为对象,对河南省的工业旅游进行了研究.结果表明,自2004年以来,河南省的工业旅游有了明显提高,但仍与东部沿海发达省份存在明显差距,且省域内部差异明显.最后提出了河南省的工业旅游发展战略.