高酸值原油脱酸装置腐蚀防护措施及改进建议

本文根据高酸值原油腐蚀机理,分析了加工高酸值原油对常减压(高酸值原油脱酸装置)装置的腐蚀特点和重点腐蚀部位,并在此基础上提出了具体的防护措施:电脱盐、塔顶三注、高温缓蚀剂、腐蚀监测等,并重点介绍了本公司50万吨/年常减压装置的具体防腐措施,实践证明这些措施取得了较好的防腐效果,最后根据实践提出了可行的改进建议。     

高速列车用铝合金焊丝的生产工艺

目前我国高速列车铝合金车体主要采用MIG自动焊接,为实现自动焊接,要求焊丝尺寸精,且具有一定的刚度。国内生产的铝合金焊丝存在严重的质量不稳定问题,高速列车的铝合金焊丝尚依靠进口。为实现高速列车用铝合金焊丝的国产化,本论文针对目前高速列车使用的ER5356及ER5183铝合金焊丝,开发了铝合金光亮焊丝生产工艺。     

Integrating decomposition approaches for the analysis of temporal changes in economic structure: an application to Chicago's economy from 1980 to 2000

This paper presents an attempt to integrate two flow decomposition methods to analyse temporal changes in a region's economic structure. The two methods of structural analysis are push–pull decomposition analysis and structural Q-analysis. Push–pull analysis presents a quasi-optimization decomposition of a set of matrices with actual intersectoral economic flows into a weighted set of matrices, while structural Q-analysis provides a form in which the structure of these decomposed flows can be considered. The paper provides an expository application to Chicago's economic structure over the period of 1980 to 2000, to reveal a complementary perspective of hollowing-out the production process in the Chicago economy that was identified in previous studies.     

浅谈建筑业技术创新

本文综述了技术创新的经典理论及其发展,并提出了技术创新的含义和产业创新的概念。在此基础上,本文描述了建筑业技术创新的两个过程。     

Turning green subsidies into sustainability: How green process innovation improves firms' green image

Green process innovation has been seen as a key strategy for manufacturing firms to pursue sustainable development. Yet, how to help manufacturing firms eliminate bottlenecks when implementing green process innovation remains poorly understood. To address this issue, the current study, which is anchored in the government incentive perspective, examines the drivers, contingent conditions, and consequences of green process innovation by using the panel data of manufacturing‐listed firms in China from 2013 to 2017. The results present valuable findings: (a) green subsidies are positively related to two dimensions of green process innovation, namely, cleaner production technology and end‐of‐pipe technology; (b) both cleaner production technology and end‐of‐pipe technology are positively related to firms' green image; (c) a firm's cleaner production technology mediates the relationship between green subsidies and its green image; and (d) higher absorptive capacity strengthens the indirect effect of green subsidies on a firm's green image via cleaner production technology. Our results provide meaningful theoretical and practical implications by revealing the benefits of green subsidies through green process innovation by leveraging levels of absorptive capacity.     

基于工作过程课程改革的探索与实践

课程教学模式与教学方法的改革是基于工作过程课程的教学改革能够顺利实施的重要保障。本文从课程教学模式和教学方法改革方面阐述了基于工作过程的高职模具设计与制造专业《机构设计与应用》学习领域课程的改革方法和内容,该课程将企业技术改造、维修和更新的工作任务转化为学习任务,有利于提高模具专业人才培养质量。     

竞争战略与技术创新关系的实证研究

以272家江苏省民营制造企业为研究对象,实证研究了企业的竞争战略与技术创新的关系。研究发现:实施低成本战略的企业进行工艺创新和产品创新的倾向均不明显,实施差异化战略的企业倾向于进行产品创新,实施混合战略的企业进行工艺创新和产品创新的倾向都明显,且实施强度显著高于实施低成本战略和差异化战略的企业;总体来看,所有企业的工艺创新强度都要高于其产品创新强度,产品创新强度整体偏低,这意味着企业转型升级的重点应放在产品创新上。     

农产品物流不畅的原因分析及改善

农产品物流不畅影响农民的增收,而农产品物流不畅的根源在于我国农业传统的生产方式、经营方式和技术.改善和发展农产品物流需要政府和企业共同努力.     

景区经营的价值偏差与政府责任探讨

文章指出,景区的市场经营中出现了一些价值偏差,由于政府行为与景区的经营发展密切相关,因此政府在景区经营发展中应承担资源保护,促进当地经济社会文化生活协调发展,保护当地民俗文化,维护旅游从业人员合法权益等责任。政府应坚持正确的景区经营发展价值取向,改革景区管理体制,引导景区科学规划,将民俗文化的保护纳入景区旅游工作的重点以促进景区的发展。