Investment Scope of Government Capital and Private Capital in Rural Infrastructure;

This paper introduces the concepts and functions of the governmental investment, analyzes on the investment scope of the government by using the public selection theory and public property theory, and defines primarily the investment scope of Chinese government by taking the investment of American government as the example.

Numerical simulation for protection scope of upper protective seam in steeply inclined multi-coal seam

This paper studies the value orientation of the protection of intellectual property rights in insurance operation and the protection scope of intellectual property rights of insurance enterprises to testify that the protection of intellectual property rights,corporation governance and brand construction are the important factors of enterprise s competitiveness and also have significance.

According to the provision in effect in our country, the protection scope of our present patent rights is explained in detail.

Calculation methods of lightning conductor protective range;

Finally, based on calculating the protective range of lightning rod, the importance of using early streamer emission lightning rod in important project was explained.

Based on the thunder-struck distance and lightning drawing angle phase the author analyzed the surround thunder-struck of 110~500 kV transmission lines and put forward the method to determine the lightning drawing range of the ground wire,protective range and surround thunder-struck range for 110~500 kV transmission lines.

Determining the protection range of 3 lightning rods with unequal height by using geometric calculation method;

Avoiding absolutization of protection range of lightning rods and overhead ground wires;

This paper will introduce how to build the mathematical models, and calculate the protection range of the lightning rods via CAD technology.