Based on the correlative requirements of electrical equipments used in explosive environment,the sorts of the ignition sources occurred in electrical equipments,the cause,igniting modes and their impact on the safety of the equipments are present in this paper.

The multifarious hazard ignition sources probably presented in industrial applications are illustrated,and European contributions to the standardization of nonelectrical equipment and protective systems for explosive atmospheres are introduced.

The hazardous ignition source possibly emerging in industrial application and the course of standardizing the nonelectrical apparatus for explosive gas atmosphere in Europe are introduced.

To identify the neurochemical mechanisms of the audiogenic kindling in the forebrain structures, the expression of c fos gene, a marker of neuronal activity, and the level of brain derived neurotrophic factor (BDNF) in the neocortex were studied after single and kindled audiogenic seizure with immunocytochemistry method.

The relation between the content of Al in Mg-Al alloy and the burning point of Mg-Al alloy;

In this paper, enhancing the burning point and improving the corrosion resistance and the mechanical property of magnesium and magnesium alloy with the method of alloying are introduced .

The dynamic adsorbing capacity of the two adsorbents CNA 208 and CAN 255 for removing NO x and the changes of their burning points before and after the adsorption of NO x were determined.

Experimental study on mechanism of lowering ignition temperature of anthracite combustion catalyzed by Fe_2O_3

The reduction degree of ignition temperature increases with the increase of heating rate.

The ignition temperatures decreased by catalysts were observed directly from the reference DTA curves.