数控仿真软件在数控教学中的应用——以车削零件加工为例

为了提高《数控机床与编程》课程的教学质量,把数控仿真软件应用引入到课堂教学,并结合车削零件加工,展示数控仿真软件整体加工过程,结果极大提高学生课堂的兴趣,提高了教学效果,也提高学生的数控编程能力和数控机床操作能力,保证了教学质量。     

新冠肺炎疫情下高校管理面临的挑战及对策研究

作为社会人才培育的主要阵地,高等院校应对困难打赢“疫情”战,不仅关系到高校本身的安危,更关系到经济社会持续稳定发展。基于此本文考察了在新冠疫情下,高校管理所要面临的挑战、机遇以及应对措施。新冠疫情使得高校管理内容复杂、形势严峻、时效迫切,但是借此一“役”,高校亦可锤炼自身管理队伍,并积极开展爱国教育、生命教育和生活教育,健康档案建立、教学方式创新、学生返校监督、优化管理制度并完善物资储备是解决此次疫情的重要手段。     

Organisational regulatory legitimacy,entrepreneurial orientation,and SME innovation: an optimal distinctiveness perspective

The optimal distinctiveness perspective argues that firms face competing pressures to be both ‘like’ and ‘different from’ their peers. On the one hand, institutional scholars assert that firms need to be similar to peers in order to gain legitimacy. On the other hand, strategy scholars insist that firms need to strive to be different to gain competitive advantage. In order to enrich the optimal distinctiveness perspective, the present study builds a conceptual model that addresses the relationships among organisational regulatory legitimacy, entrepreneurial orientation, and SME innovation under the context of China’s transition economy. Our empirical results show that organisational regulatory legitimacy has an inverted-U relationship with SME innovation. Further, entrepreneurial orientation strengthens this inverse-U shaped relationship. That is, entrepreneurial orientation magnifies both the positive and the negative effect of organisational regulatory legitimacy on SME innovation. This study echoes to the call to conduct broader optimal distinctiveness research by integrating institutional theory and strategic management. Furthermore, our findings provide new evidence for the strategic balance perspective of optimal distinctiveness.     

NOMINAL GDP TARGETING AND CENTRAL BANK CONSERVATIVENESS

In the literature on monetary economics, there is the ‘inflationary bias’ result which predicts that the rate of inflation will be biased towards a higher level under discretionary monetary policy than under a rule‐based policy regime. It is established that a credible nominal target can eliminate this ‘inflationary bias’. In this paper, we examine the case of nominal GDP targeting, which is a rule‐based monetary regime. Depending on the degree of conservativeness by the central bank, we show in a stylized model the choice of different combination of inflation and real GDP targets can still result in an ‘inflationary bias’, and there also exists the possibility of a ‘dis‐inflationary bias’.     

Is China’s Manufacturing Industry Efficient? Evidence from an Energy-Rebound Effect Perspective

Majority of the increase in global energy consumption is from China; hence, studying energy issues, especially in China’s manufacturing industry (CMI), is worthwhile and of much interest in the academic field. Based on the translog cost function, we develop a research framework to study the rebound effect of CMI. Considering the effect of asymmetric energy price, we augment the energy-cost function with asymmetric influence constraint of energy price. Again, we add time series data of CMI’s capital, labor, energy, and mid-input to the model to calculate the direct rebound effect of CMI. We find that the rebound effect of CMI is 44.2%, and CMI still has large energy-conservation potentials. Based on the results of this study, some policy recommendations are provided.     

浅谈ALARA在核电厂废物处理设计中的运用

随着科学技术快速发展,公众对核电的认知度不断加深,核电厂产生的废物对环境资源与公众的影响也越来越受到关注。本文阐述了ALARA(可合理达到尽量低)的涵义及其在核电厂废物处理设计中的多方面运用,以达到优化核电厂废物处理设计与放射性废物管理的目的。     

汽车类院校一体化教师培养模式的研究

随着我国社会主义市场经济和职业教育的迅速发展,社会及企业要求学校毕业生要有一定的理论知识又要有很强的实际操作能力。新的人才需求要求有新的教学模式——"专业基础理论与技能实践一体化"教学模式,要成功地实施一体化教学模式,建设一支既能胜任理论教学又能指导实习操作的"双师型"教师队伍是实施一体化教学的关键。本文就汽车类院校一体化教师培养模式进行探索。     

基于多维频谱地图的干扰规避

针对复杂电磁环境下卫星移动通信系统可靠通信需求，利用频谱地图多维数据呈现优势，提出了基于多维频谱地图的干扰规避方法。通过建立卫星移动通信系统波束、时隙、子频带、干扰强度等多维信息关联的频谱地图，利用数据挖掘方法对频谱可用情况进行预测，基于预测结果及用户QoS(Quality of Service)需求生成干扰规避策略，通过星地联合频谱资源调配实现系统干扰规避。该方法为卫星移动通信系统干扰规避提供了一种全新的思路，可提升卫星移动通信系统干扰防护能力。