But in the middle and lower reaches of Chang-Jiang river,because it is not very cold in winter,the research indicates the insulated inner wall can improve the comfortableness of the human body in the room with intermitting heating.

Directing against the relationship between the thermal comfortableness of human bodies and the room and the inner wall temperature, a mathematical model was proposed and tested for the room temperature response to the intermitting heating in a room with walls built with composite materials.

The author has queried the traditional intermittent heating system.

Introduces the mathematical mode of thermodynamic process in intermittent electric heating systems,and makes an experimental test of thermodynamic process as an example which will perhaps be available for reference during applying and designing intermittent electric heating.

The process and mechanism of ion nitriding with pure nitrogen were studied by way of continuous nitrogen supply simultaneously with vacuum pumping and furnace shutdown after intermittent nitrogen supply,respectively,under cathode voltage of 500,600,650 and 700 V.

In consideration of the problems of low efficiency of walking-beam pumping units and electric energy stolen in the oilfields, a new device, which is power saving and electricity-stealing prevention, is developed for voltage regulation and intermittent power supply for the walking-beam pumping units.

:duty ratio,frequency and polarization potential of cathodic protection (CP) by intermittent power supply on effectiveness of protection for carbon steels were investigated by experimental methods.

As for those problems mentioned above,a method of intermittent power supply of constant voltage source is introduced in this paper,which.