青少年学生旅游感知及行为研究评价

在问卷调查的基础上,以中学生为例,从旅游兴趣、出游机会、旅游形式、旅游时间、旅游次数等20个项目对中学生群体的旅游感知和行为进行分析。结果表明,中学生群体旅游需求较强,但不同的学龄段存在差异,与大学生和大众旅游者存在差异等,并对旅游企业开拓中学生旅游市场提出建议。     

THE MISSING LINK-WASTEWATER TREATMENT PLANT OPERATORS1

ABSTRACT. The need for trained manpower in the wastewater treatment field has become critical, especially at the Operator level. Each year for the next five years, an estimated 4,500 new operators will need to be trained and an estimated 7,300 present operators will need skill-improvement training. During 1969–70, the Federal Water Quality Administration (FWQA) initiated a new type of Operator Training Program in collaboration with the Departments of Labor (DOL) and Health, Education, and Welfare (HEW); 1,200 operators were successfully trained in 20 states. Approximately 900 were trained under the Cooperative Area Manpower Planning System (CAMPS). During 1970–71, under the joint auspices of the FWQA, DOL, HEW and Department of Defense (DOD), approximately 2,600 operators will be trained in four different programs-in addition to a possible 900 trained under CAMPS. Also important is the human element: motivation of the operator; career-ladders with increased salaries; certification; enhancing the public image of the operator.     

浅谈使用声级计测量个人噪声接触剂量的应用

通过对油田巡检工噪声危害现状分析,对比2种个人噪声接触剂量的测量方式,选择一种对巡检工个人噪声接触剂量评估的日常监测简便方法。     

多方博弈下起重作业人员有意不安全行为致因分析

为有效制定起重作业人员有意不安全行为防范措施,降低人为事故发生可能性,结合演化博弈理论,探讨不同策略选择下施工企业内部管理方、监管方及作业方的得益变化,建立各方期望效益函数;依据复制动态方程,构建多方演化博弈模型,分析各方策略选择演化趋势及均衡点,剖析作业人员有意不安全行为致因,并分别从各方角度制定作业人员有意不安全行为预防措施。结果表明:作业人员有意不安全行为不仅与自身风险、成本有关,且受管理方、监管方决策影响;管理方增加安全投入,提升作业人员事故损失承担比例;监管方选择合理监管方式严格监管作业行为;作业人员进行行为决策时权衡风险、成本、收益及各方决策,将有效减少作业人员有意不安全行为的发生。