规范大学物理实验教学环节的思考与实践

本文从大学物理实验预习、实验操作、实验结果检查、实验报告撰写等方面,介绍了我校在规范大学物理实验教学环节方面的一些思考与实践。     

汽车柴油发动机可靠性试验的重要性和必要性

文章针对当前汽车柴油发动机产品在可靠性方面存在的主要问题,结合国家试验标准,通过列举某台国产汽车柴油机可靠性试验中出现的故障情况及排除措施,纠正此类可靠性试验保养操作中的常见误区,阐明进行汽车柴油机可靠性试验的重要性和必要性。     

Cournot Competition and Hit-and-Run Entry and Exit in a Teaching Experiment

Instructors can use a computerized experiment to introduce students to imperfect competition in courses on introductory economics, industrial organization, game theory, and strategy and management. In addition to introducing students to strategic thinking in general, the experiment serves to demonstrate that profits of a firm fall as the number of competitors is increased in a market and that firms enter profitable markets. The authors have used the experiment in undergraduate classes on strategy and management as well as in master of business administration courses with great success.     

Students' Characteristics and Performance in Economic Statistics

The vast majority of studies in college economics have dealt with the introductory principles course. In one of the rare research projects dealing with other courses, Professor Cohn attempts to identify factors affecting student performance in economic statistics. He considers such variables as grade point average, graduate vs. undergraduate status, major field, sex and credits in economics, mathematics and statistics. There are a few recognized limitations to his model, but the reader will find some of his results to be surprising indeed.     

Price of High‐quality Daycare and Female Employment

Using local variation between municipalities, I analyze the degree to which the price of high‐quality publicly subsidized childcare affects female employment following maternity leave. Importantly, prices are income dependent and thus likely endogenous, yet by exploiting information on minimum income compensation during non‐employment, I bypass this problem. The results show that the price negatively affects employment. A price increase of €1 per month decreases employment by 0.08%, which corresponds to a price elasticity of −0.17. These effects prevail during the first 12 months after childbirth. I also find that availability of childcare increases employment.     

三位一体全面提高学生的实验能力

三位一体的培养模式即:一、对教材的认真预习;二、访问江南大学网上物理化学仿真实验平台,进行仿真模拟实验操作;三、进入江苏省实验示范中心——江南大学化学实验中心在教师的指导下认真完成实验。该教学模式,强化了学生的实验预习环节、提高了实验操作的能力,取得了良好实验的教学效果。     

An analysis of information overload with implications for survey design research

Abstract

A laboratory‐type experiment was conducted to examine potential information overload causes and solutions. It was found that both information quantity and information complexity are potential causes of information overload. The experiment results also suggested that information overload problems may be reduced through carefully designed information display patterns. When designing survey questionnaires, attention must be given to potential causes of information overload. Methods of presenting information that ameliorate information overload must also be considered. As demonstrated in this study, survey designs can be tested in controlled, laboratory‐type experiments. The results of these experiments can then be used to improve the design of field survey questionnaires.     

A Monopoly Classroom Experiment

The author uses a simple classroom experiment to develop the economic model of monopoly. As a pedagogical tool, the experiment introduces students to the nature of the monopoly problem and motivates them to think of the associated efficiency issues as a divergence between private benefits and social contributions. As a test of economic principles, the experiment highlights the role of information and fairness ideals in determining economic outcomes.     

Disaster‐Relief Logistics With Limited Fuel Supply

Disaster‐relief logistics consists of providing adequate emergency supplies rapidly to the affected people so as to minimize human suffering and death. This study empirically examines the impact that the shortage of fuel, a commonly encountered problem in many disaster situations, can have on the effectiveness of disaster‐relief logistics operations. We focus on investigating the following two issues: (1) whether the shortage of fuel is more damaging in attaining logistical goals than the equivalent‐sized shortage in emergency supplies themselves, and (2) what types of vehicles should be used when the fuel supply is limited. Results suggest that the shortage of fuel may be more damaging than the shortage of emergency supplies, and that smaller trucks may be preferred to larger trucks when the shortage of fuel becomes severe.     

动力机械实验课程建设与实验教学改革与实践

实验教学在机械类专业教育中具有不可替代的功能和作用。为适应机械类专业知识体系发展需求,我们进行了动力机械实验课程建设与实验教学改革,构建了＂三层次三结合＂的的实验课程教学新体系,提升学生的创新意识和实践能力。