In this paper we consider the extreme points of closed convex hull of the class T σ(p,α) and then it is used to determine the coefficient bounds. Some other interesting properties of the class T σ(p,α) are also...In this paper we consider the extreme points of closed convex hull of the class T σ(p,α) and then it is used to determine the coefficient bounds. Some other interesting properties of the class T σ(p,α) are also investigated.展开更多
The existence of solutions for singular nonlinear two point boundary value problems subject to Sturm Liouville boundary conditions with p Laplacian operators is studied by the method of upper and lower solution...The existence of solutions for singular nonlinear two point boundary value problems subject to Sturm Liouville boundary conditions with p Laplacian operators is studied by the method of upper and lower solutions. The proof is based on an application of Schauder’s fixed point theorem to a modified problem whose solutions are that of the original one. At the same time, Arzela Ascoli theorem is used to prove that the defined operator N is a compact map.展开更多
Grounded ship faces up exceptionally different stability forces unlike in her normal operating condition. This critical situation must be corrected as soon as can minimize hull stress, the risk of pollution and stabil...Grounded ship faces up exceptionally different stability forces unlike in her normal operating condition. This critical situation must be corrected as soon as can minimize hull stress, the risk of pollution and stability failure. Re-floating the ship need full understanding of the impact of ground reaction （R） on the ship buoyancy and stability. Re-floating the ship has different phases and there are several immediate actions that should be taken by ship＇s crew; one of these phases is re-calculation of ship stability conditions. In this paper, a guide to understanding the effect of the ground reaction （R）, determines the amount of ground pressure and its location. With consideration of the seabed form whether symmetric of asymmetric. Calculating the magnitude of the ground reaction （R） using different applicable methods, explaining the effect of using weight to re-float the ship by her own means, focusing on GM calculation after grounding.展开更多
本文用连续可微非凸函数描述的概率约束分析非线性随机优化问题。为此描述了潜在概率函数的水平集的切锥和法锥,并在此基础上,提出p-有效点的定义,形成问题的一阶和二阶最优性条件,基于p-有效点生成的概率函数的水平集,通过修正的Carrol...本文用连续可微非凸函数描述的概率约束分析非线性随机优化问题。为此描述了潜在概率函数的水平集的切锥和法锥,并在此基础上,提出p-有效点的定义,形成问题的一阶和二阶最优性条件,基于p-有效点生成的概率函数的水平集,通过修正的Carroll函数生成一个对偶算法。In this paper, probabilistic constraints described by continuously differentiable non-convex functions are used to analyze nonlinear stochastic optimization problems. To this end, the tangent and normal cones of the level set of potential probability functions are described, and on this basis, the definition of p-effective points is proposed to form the first and second order optimality conditions of the problem. Based on the water-level set of probability functions generated by p-effective points, a dual algorithm is generated by the modified Carroll function.展开更多
本文通过连续可微的非凸函数所形成的概率约束,来分析概率约束问题。描述了潜在的概率函数的水平集的切锥和法锥。进一步,基于p-有效点的概念,形成这些问题的一阶和二阶最优性条件。对于离散分布函数的这种情况,产生一个基于修正的指数...本文通过连续可微的非凸函数所形成的概率约束,来分析概率约束问题。描述了潜在的概率函数的水平集的切锥和法锥。进一步,基于p-有效点的概念,形成这些问题的一阶和二阶最优性条件。对于离散分布函数的这种情况,产生一个基于修正的指数函数的对偶算法来解决概率约束问题。In this paper, the problem of probability constraints is analyzed by means of the probability constraints formed by continuously differentiable non-convex functions. The tangent and normal cones of the level set of potential probability functions are described. Further, based on the concept of p-efficient points, the first and second order optimality conditions of these problems are formed. For this case of the discrete distribution function, a dual algorithm based on the modified exponential function is generated to solve the probability constraint problem.展开更多
We obtained n-type and p-type modified graphene by mixing quantum dots and depositing electron-acceptor molecules on the surface of graphene, respectively. The electrical and optical properties of these two types of s...We obtained n-type and p-type modified graphene by mixing quantum dots and depositing electron-acceptor molecules on the surface of graphene, respectively. The electrical and optical properties of these two types of samples were measured. For n-type modified graphene, the electrons were transferred from quantum dots to graphene. The resistance of these quantum dots in modified n-type graphene is significantly smaller than that of pristine graphene. For p-type graphene, modified by electron-acceptor organic molecules of tetracyanoethylene (TCNE), electrons were transferred from graphene to TCNE molecules. The resistance of this molecular modified p-type graphene is about 10% larger than that of pristine graphene. The charge transfer effect on the optical properties of graphene was investigated with Raman spectra.展开更多
This paper deals with the pointwise multipliers from space F（p, q, s） to space βα on the unit ball B of C^n. The multiplier spaces M（F（p, q, s）,βα） are fully characterized.
文摘In this paper we consider the extreme points of closed convex hull of the class T σ(p,α) and then it is used to determine the coefficient bounds. Some other interesting properties of the class T σ(p,α) are also investigated.
文摘The existence of solutions for singular nonlinear two point boundary value problems subject to Sturm Liouville boundary conditions with p Laplacian operators is studied by the method of upper and lower solutions. The proof is based on an application of Schauder’s fixed point theorem to a modified problem whose solutions are that of the original one. At the same time, Arzela Ascoli theorem is used to prove that the defined operator N is a compact map.
文摘Grounded ship faces up exceptionally different stability forces unlike in her normal operating condition. This critical situation must be corrected as soon as can minimize hull stress, the risk of pollution and stability failure. Re-floating the ship need full understanding of the impact of ground reaction （R） on the ship buoyancy and stability. Re-floating the ship has different phases and there are several immediate actions that should be taken by ship＇s crew; one of these phases is re-calculation of ship stability conditions. In this paper, a guide to understanding the effect of the ground reaction （R）, determines the amount of ground pressure and its location. With consideration of the seabed form whether symmetric of asymmetric. Calculating the magnitude of the ground reaction （R） using different applicable methods, explaining the effect of using weight to re-float the ship by her own means, focusing on GM calculation after grounding.
文摘本文用连续可微非凸函数描述的概率约束分析非线性随机优化问题。为此描述了潜在概率函数的水平集的切锥和法锥,并在此基础上,提出p-有效点的定义,形成问题的一阶和二阶最优性条件,基于p-有效点生成的概率函数的水平集,通过修正的Carroll函数生成一个对偶算法。In this paper, probabilistic constraints described by continuously differentiable non-convex functions are used to analyze nonlinear stochastic optimization problems. To this end, the tangent and normal cones of the level set of potential probability functions are described, and on this basis, the definition of p-effective points is proposed to form the first and second order optimality conditions of the problem. Based on the water-level set of probability functions generated by p-effective points, a dual algorithm is generated by the modified Carroll function.
文摘本文通过连续可微的非凸函数所形成的概率约束,来分析概率约束问题。描述了潜在的概率函数的水平集的切锥和法锥。进一步,基于p-有效点的概念,形成这些问题的一阶和二阶最优性条件。对于离散分布函数的这种情况,产生一个基于修正的指数函数的对偶算法来解决概率约束问题。In this paper, the problem of probability constraints is analyzed by means of the probability constraints formed by continuously differentiable non-convex functions. The tangent and normal cones of the level set of potential probability functions are described. Further, based on the concept of p-efficient points, the first and second order optimality conditions of these problems are formed. For this case of the discrete distribution function, a dual algorithm based on the modified exponential function is generated to solve the probability constraint problem.
基金supported by the National Natural Science Foundation of China (Grant Nos. 90923003, 10874234, 20703064 and 10804015)the Natural Science Foundation of Liaoning Province (Grant No. 20102039)
文摘We obtained n-type and p-type modified graphene by mixing quantum dots and depositing electron-acceptor molecules on the surface of graphene, respectively. The electrical and optical properties of these two types of samples were measured. For n-type modified graphene, the electrons were transferred from quantum dots to graphene. The resistance of these quantum dots in modified n-type graphene is significantly smaller than that of pristine graphene. For p-type graphene, modified by electron-acceptor organic molecules of tetracyanoethylene (TCNE), electrons were transferred from graphene to TCNE molecules. The resistance of this molecular modified p-type graphene is about 10% larger than that of pristine graphene. The charge transfer effect on the optical properties of graphene was investigated with Raman spectra.
基金the National Natural Science Foundation of China(19871026).
文摘This paper deals with the pointwise multipliers from space F（p, q, s） to space βα on the unit ball B of C^n. The multiplier spaces M（F（p, q, s）,βα） are fully characterized.
