On Nature and Validity of the Paramount Clause;

Domestic scholar persist in different opinions on the definition of paramount clause of bill of lading, writer introduce and analyse the different definitions briefly, and then tell us how the paramount clause come into being and what it was at that time , after that two sapientials in praxis operation are given to us,as to some scholar’s dissertate, writer expound different views.

Literally, paramount clause and choice of law clause regulate the same thing that certain countrys law or certain international convention is selected to solve the disputes.

Several typys of alkali-aggregate reaction and its mechanism was introduced, then the essential conditions of the reaction were also pointed out.

In this paper,by using reflective function method for secondary nonlinear differential system,we obtain secondary nonlinear differential system to have the linear reflection function necessary and sufficient condition and the essential condition.

The effects of monsoon wind stress, continental slope topology andbottom friction as essential conditions to form monsoon upwind flow and as diagnosticcriteria are discussed.

Necessary Condition of Establishing Auto-regression Model and It′s Application;

A necessary condition for a class of elliptic equations with Allee effect

Our systematic and in-depth study arrives at the full conditions and necessary conditions for the existence of double cranks of a 2-DOF planar five-link linkage.