This paper has introduced a Looped Parallel Thermosyphon s structure and characteristic,described experimental physical phenomenon and different affecting factors,and the engineeringapplications are alsopresented.

This paper has introduced oscillating heat pipe s structure and characteristic, described experimental physical phenomenon and different affecting factors, and summarized the present situation of theoretical research.

Enriching the historical concept of "intentionality",Brentano further clarifies the intrinsic of "intentionality",and distinguishes man\'s conscious acts into intentionality-guided "psychological phenomenon" and non-intentionality-guided "physical phenomenon".

Assignment: operation on a physical object;

A program turns out to be an expression of operations on physical objects(operation expression or O_expression for short)when assignments are treated as operations on physical objects.

These problems are:being unable to see clearly the physical phenomena of the problem,unable to know the module structure of finite element analysis program packages and unable to master the fundamental of finite element method accurately.

He brought intentional or intentional inexistence into philosophy and psychology,considered that intentionality is an basic character particular to mental phenomena,and that we can distinguish mental phenomena from physical phenomena through intentionality.

It not only describes a clear physical picture in the appIication of angular momentum theorem,but sometimes makes the solution to these problems easy as well.

In this paper we used the ellipsoidal face of refractive index to describe the physical picture of the optical parametric oscillation process.