Labour market consequences of a high school diploma

This article compares the labour market outcomes of high school dropouts to high school graduates who did not enrol into higher education, but immediately entered the labour market. Using parental educational background as an instrument on a rich administrative dataset in the Flemish Region of Belgium, we find no returns to a high school diploma on average. However, these results hide considerable heterogeneity by gender and educational track. While females and individuals in vocational education may benefit from a diploma, male graduates and students holding a general education diploma may even be worse off on the labour market than dropouts. We show that sectoral heterogeneity acts as an underlying mechanism in the returns to a high school diploma.     

耐热钢压力容器焊接技术研究

焊接是耐热钢压力容器制造过程中最重要的工艺,现代压力容器正在发展为高压大型化和多用化,本文主要论述了多种焊接技术在耐热钢压力容器上的应用。     

Innovation Capacity and the Implementation of Eco‐innovation: Toward a Contingency Perspective

This study develops a framework by drawing on the perspectives of contingency theory to investigate how innovation capacity affects eco‐innovation. The examination covers four moderators, including customer requirement, export destination, environmental regulation and government subsidy, and focuses on the types of eco‐innovation concerning pollution and waste. A sample of 2964 manufacturing firms from the Taiwanese Technological Innovation Survey is utilized to test the hypotheses. A moderated hierarchical logit method is adopted to analyze the data. The results overall suggest that the effect of innovation capacity on eco‐innovation depends on the levels of the four moderators. Specifically, the results show that innovation capacity has different effects on eco‐innovation when customers have a demand for eco‐innovation, export markets have high environmental awareness, future environmental regulations are expected, and the government provides a subsidy for environmental innovation. Copyright © 2017 John Wiley & Sons, Ltd and ERP Environment     

液压无杆采油泵技术在油田的应用

随着油田开发的进一步深入,稠油开采难度逐渐加大,严重制约了油田的正常开发,因此急需探讨新的开采技术来解决稠油开采难题。本文阐述了液压双作用无杆采油泵技术在辽河油田的应用现状以及效果,从而为稠油开发提供了新的技术支撑。     

倒分系数计量方式在处理站的应用

倒分系数法是静态计量和动态计量相结合的一种计量方式,主要应用于负责处理不同采油作业区含水原油的集输站库。近年来由于油田快速发展,采油区块的增多,某处理站负责处理3个采油作业区原油,使用倒分系数计量方式实现了对原油产量的准确计量。     

薄壁空心高墩施工技术

文章结合工程实例,简述薄壁空心高墩支架及模板设计、施工工艺及施工质量控制,为今后类似工程施工提供参考。     

如何发挥信息分析在营销中的作用

通过市场信息分析预测,指导原料采购、生产方案的改变、以及销售策略的制定。主要是根据国家政策导向,整理分析反馈信息,了解成品油市场的影响因素,判断市场的走势,为销售调整油品价格提供理论依据。分析市场、积极适应市场,企业效益实现最大化,是信息分析的最高目标。     

过套管电阻率测井技术在苏丹X区的应用

文章总结了过套管电阻率测井技术在苏丹X区的首次应用,分析了过套管测井技术特点和创新点,提出了在针对苏丹地质区域特点,过套管电阻率测井技术在剩余油分布方面的应用。