边耦合量子点系统的全计数统计研究

基于有效粒子数分辨的量子主方程,研究了边耦合双量子点系统中电子的全计数统计.当点间隧穿耦合强度与量子点电极耦合强度的比值小于某一数值(约为1/3)时,可以观察到超泊松噪声,并且超泊松散粒噪声可以用快慢输运通道解释.此外,系统量子相干性对电子全计数统计的影响只有在点间隧穿耦合强度相对于量子点电极耦合强度较弱时起主要作用.     

A Robust Algorithm for Blind Total Variation Restoration

Image restoration is a fundamental problem in image processing. Blind image restoration has a great value in its practical application. However, it is not an easy problem to solve due to its complexity and difficulty. In this paper, we combine our robust algorithm for known blur operator with an alternating minimization implicit iterative scheme to deal with blind deconvolution problem, recover the image and identify the point spread function（PSF）. The only assumption needed is satisfy the practical physical sense. Numerical experiments demonstrate that this minimization algorithm is efficient and robust over a wide range of PSF and have almost the same results compared with known PSF algorithm.     

On subnormal subgroups of linear groups

We describe the subnormal subgroups of 2-dimensional linear groups over local and full rings in which 2 is invertible, as well as the subnormal subgroups of symplectic groups over local rings in which 2 is invertible.     

综采工作面缩接面有关参数的选择

以木冲沟煤矿综采工作面缩接面实际 ,分析探讨了有关参数的选择方法     

煤炭的精细加工利用在西部大开发中的战略地位

提出了煤炭精细加工利用概念 ,并结合煤的结构特征 ,讨论了西部大开发中煤炭精细加工利用的新技术领域及其战略地位     

孤岛煤柱综放面矿压显现特征浅析

针对兖州南屯 63 上 10孤岛综放面的特点 ,在现场实测的基础上 ,分析研究了孤岛综放面矿压显现的基本特征     

罗尔中值定理的一些新证法(英文)

给出了罗尔微分中值定理的三种新的证明方法,其中第二种很简便的方法仅依赖于大家熟知的Heine-Borel有限覆盖定理.由此可见罗尔微分中值定理可以是实数的完备性的直接推论.     

亚直不可约环成为全矩阵环的条件

给出了亚直不可约环是除环上的全矩阵环的一个新的条件。     

也谈毕奥沙伐尔定律不能推广到迅变电磁场

为什么毕奥－沙伐尔定律不能推广到迅变电磁场？确实是不易回答的问题。本文剖析了教学中常见的几种错误观点，并指出错误的原因。