According to the experimental result and degradation rate to calculate,out power of QCW diode laser reach 91W and 1.16W/A of slope efficiency,the average lifetime is 2.19×10~9 shots at room temperature,when the operating current is 90A,10% duty-cycle(500Hz,200μs).

Observation from AZ91D Mg alloy fracture morphology indicates that it is composed of fatigue source zone,fatigue crack propagation zone and fatigue fracture zone,where the fatigue lines is not evident and fatigue fracture morphology is quasi-cleavage fracture.

Assuming a material to be an anisotropic aggregate of many tiny quasi- D_5 crystallites,we study elastic constitutive relation of quasi- D_5 crystals and then get the effective elastic stiffness tensor and the effective softness tensor for an anisotropic aggregate of quasi- D_5 crystallites under Voigt model and Reuss model,respectively.

We also show how to distinguish examples of open subsets with a good quotient coming from Mumford's theory and give examples of open subsets with non-quasi-projective quotients.

This paper shows how the Kazhdan-Lusztig theory of cells can be directly applied to establish the quasi-heredity ofq-Schur algebras.

Fr?nsdal [Fr1, Fr2] made a penetrating observation that both of them are quasi-Hopf algebras, obtained by twisting the standard quantum affine algebraUq(g).

The case of some quasi-projective toric surfaces such as the affine plane are described by our method too.

Scales of quasi-norms are defined for the coefficients of the expansion that characterize, via Littlewood-Paley-Stein theory, when a radial distribution belongs to a Triebel-Lizorkin or Besov space.

In this paper we have derived the fundamental solutions of the flow over semi-infinite angular wings with constant load, of which the side-edge is not parallel to the free stream. The feature of the solutions is that the vortices issued from the leeward side-edge go along this edge rather than in the direction of the free stream. With the help of these solutions, we can overcome the difficulties Dillenius and Nielson have experienced in using symmetrical subdivisions to construct the finite elements for sideslipping...

In this paper we have derived the fundamental solutions of the flow over semi-infinite angular wings with constant load, of which the side-edge is not parallel to the free stream. The feature of the solutions is that the vortices issued from the leeward side-edge go along this edge rather than in the direction of the free stream. With the help of these solutions, we can overcome the difficulties Dillenius and Nielson have experienced in using symmetrical subdivisions to construct the finite elements for sideslipping wings, and extend Woodward method, so that it is applicable to wings with small angles of sideslip for subsonic and supersonic speeds. The problem is divided into symmetrical and asymmetrical parts, thus allowing a great saving of computer storage and operation time. Besides, a quasi-similar rule is derived from the governing equation or directly from the numerical method. The results obtained are in good agreement with those obtained by the exact theory and other methods.

In this paper we have derived the fundamental solutions of the flow over semi-infinite angular wings with constant load, of which the side-edge is not parallel to the free stream. The feafure of the solutions is that the vortices issued from the leeward side-edge go along this edge rather than in the direction of the free stream. With the help of these solutions, we can overcome the difficulties Dillenius and Nielson have experienced and use symmetrical subdivisions to construct the finite elements for sideslipping...

In this paper we have derived the fundamental solutions of the flow over semi-infinite angular wings with constant load, of which the side-edge is not parallel to the free stream. The feafure of the solutions is that the vortices issued from the leeward side-edge go along this edge rather than in the direction of the free stream. With the help of these solutions, we can overcome the difficulties Dillenius and Nielson have experienced and use symmetrical subdivisions to construct the finite elements for sideslipping wings, extending Woodward method so that it is applicable to wings with small angles of sideslip and covers subsonic and supersonic speeds. By this method, problems are divided into symmetrical and asymmetrical parts, thus allowing a great saving of computer storage and time Besides, a quasi-similar rule is derived from the governing equation or directly from the numerical method. Tin results obtained are in good agreement with those obtained by the exact theory and other methods.

In this paper, the consistent density wave theory for both the galactic gaseous shock and linear stellar density wave is studied. The steady, two-dimensional equations coupled with the Poisson equation are solved in the case of hydrodynamie model, a quasi-stable, tightly wound, two-arms consistent solution is obtained for both linear stellar density wave and galactic gaseous shock. The results show that the consistent solution is convergent if incomplete hydrodynamie linear equations together with the global...

In this paper, the consistent density wave theory for both the galactic gaseous shock and linear stellar density wave is studied. The steady, two-dimensional equations coupled with the Poisson equation are solved in the case of hydrodynamie model, a quasi-stable, tightly wound, two-arms consistent solution is obtained for both linear stellar density wave and galactic gaseous shock. The results show that the consistent solution is convergent if incomplete hydrodynamie linear equations together with the global equation of gravity are used. Such kind of solutions gives the similar dispersion relation as the local one in asymptotic approximation and the distribution of total density and gravity in non-harmonic form. However, the stellar linear density wave will be unstable if the complete hydrodynamie linear equations are used.