Karasek created Job Demand-Control Model (JD-C Model) which claims that job stress is caused by both job demand and job control.

Based on the literature review of Karasek s job demands-control model and related studies,the present paper introduces a variable about individual difference,namely self-efficacy,and proposes the fit model between self-efficacy and job control.

It introduces the features and working mode of intelligent numerical voltmeters, and describes its application combined with specific work.

Bi-directional DC/DC converter with various operating mode;

In the paper, the characteristics and operating modes of UV communication and the main factors affecting UV communication are described.

Analysis of right leg working styles at different linking stages of different throwing items;

Aiming at current phenomena of neglecting site planning and design generally existed in domestic field of city planning and urban design, this paper makes analysis of the problems in terms of the integral conception, organi- zation of function, psychology of users and working style.

This article tries to make a exposition of the Party building in state enterprises from the angles of basical principles , leading system , working style and the building of leading group.

Discussion on the problems of college students breaking laws and committing crimes of the present age and the choice of effective working way to promote moral education;