我国农业市场化供给制约因素及供需矛盾的解决

分析了我国目前经济发展阶段和国际背景下农业市场化的重要意义。从农产品市场化、农业生产要素市场化、农业经济国际化和政府农业行为市场化等 4个方面对农业市场化现状进行了描述。在对我国农业市场化制度供给的制约因素进行分析的基础上 ,提出了推进我国农业市场化的对策和建议     

磁场约束对CMT增材制造铝合金微观组织及力学性能的影响

为了解决电弧增材制造铝合金过程中出现的气孔和微观组织缺陷问题，课题组采用了纵向直流磁场来辅助电弧增材制造铝合金的方法，研究了纵向直流磁场对成形件的焊缝气孔、组织形貌和力学性能的影响。结果表明：纵向直流磁场可以降低增材制造铝合金成形件的孔隙率，改变熔合线的形貌，细化铝合金内部的微观组织；施加了纵向直流磁场辅助电弧增材制造铝合金的成形件，横向和纵向极限抗拉强度分别达到了176.5和182.9 MPa，相比于无磁场条件下提升了9.3%和14.4%，组织性能明显优于无磁场条件下的成形件；施加了磁场后的成形件拉伸断口表面气孔数较无磁场下明显减少，断口形貌呈韧性断裂。     

Personal wellbeing among ethnic Koreans in China's Northeast

This study investigates personal wellbeing among a sample of ethnic Koreans in China's Northeast using the eight-item Personal Wellbeing Index (PWI). The PWI demonstrated good psychometric properties, consistent with previous studies. The data revealed a moderate level of personal wellbeing (PWI score = 70.3) and the results supported the Theory of Subjective Wellbeing Homeostasis, suggesting that strong external and internal buffers protect the HPM for ethnic Koreans, despite the onslaught of marketisation and urbanisation in China that are threatening to undermine Koreans' sense of ethnic identity. The predictors of personal wellbeing were found to be age (with a nonlinear relationship), education, gender, income, marital status and the city in which the individual lives.     

A study of the impact of environmental surroundings on personal well-being in urban China using a multi-item well-being indicator

We examine the relationship between atmospheric and water pollution, traffic congestion, access to parkland and personal well-being using a survey administered across six Chinese cities in 2007. In contrast to existing studies of well-being determinants by economists which typically employ single-item indicators, we use the Personal Well-being Index (PWI). We also employ the Job Satisfaction Survey (JSS) to measure job satisfaction, which is one of the variables for which we control when examining the relationship between environmental surroundings and personal well-being. Previous research by psychologists has shown the PWI and JSS to have good psychometric properties in western and Chinese samples. A robust finding is that in cities with higher levels of atmospheric pollution and traffic congestion, respondents report lower levels of personal well-being ceteris paribus. Specifically, we find that a one standard deviation increase in suspended particles or sulphur dioxide emissions is roughly equivalent to a 12–13% reduction in average monthly income in the six cities.     

台湾农产品营销的启示

通过对台湾农产品营销制度、营销渠道以及营销效率等方面的介绍 ,揭示农产品营销问题的重要性 ,并分别从生产方面、消费方面和管理方面提出我国现阶段提高营销效率、降低营销成本的建议     

超声空化处理对冷金属过渡焊接过程的影响

基于 2017年流动人口动态监测数据和 2015年全国 1%人口抽样调查数据,从社会排斥角度研究居住隔离对农民工市民化的影响及其机制。研究发现,居住隔离显著降低了农民工市民化,居住隔离程度越高,农民工市民化程度越低,两者之间的负向关系在新生代农民工和在大型城市就业的农民工群体中更为明显。居住隔离通过影响城镇社会对农民工的社会排斥,间接影响个体城镇社会经济状况和文化适应状况,进而对农民工市民化产生抑制作用。本研究为有效解决人口半城镇化问题和推进农民工有序市民化提供重要政策借鉴。