矩阵代数收敛至球面与非交换度量几何

介绍了Rieffel定义的紧致量子度量空间与量子Gromov-Hausdorff距离和近来Latrémolière定义的量子Gromov-Hausdorff邻距,分别讨论了矩阵代数如何在这两种量子距离下收敛至球面.     

刺激响应型聚合物前药

前药(prodrug)是一类经过生物体内转化后才具有药理作用的化合物。与传统纳米药物输送系统相比具有载药率确定、稳定性高、爆释现象小等优点。但是,前药本身也面临着可控性,特异性释药不足而引起效果不佳等问题。因此,能够靶向病灶部位并能够针对病灶部位进行特异性释药的刺激敏感型前药受到广泛研究。本文以国内外学者及本课题组的研究成果为基础,以肿瘤部位特殊的生理环境为背景,综述了近年来pH敏感、温敏、氧化还原敏感、酶敏感等生物刺激响应型抗肿瘤聚合物前药的研究进展。     

超高速光纤耦合声光调制器的设计及其应用

为实现小于10 ns光脉冲上升时间的超高速声光调制,该文提出一种光纤耦合声光调制器光脉冲时域响应的理论设计仿真方法。利用该方法对1064 nm和1550 nm工作波长光纤耦合声光调制器进行了仿真,结果预测器件的光脉冲上升时间分别为9.4 ns和9.1 ns;通过器件制作和测试验证,两个波长的器件实测光脉冲上升时间分别为9.74 ns和9.22 ns,实测与理论仿真结果偏差较小。文章最后对器件在超快光纤激光器种子源光脉冲选单、光纤水听阵列时分复用及潜在的宽带移频应用进行了介绍。     

Uncovering the underlying physical mechanisms of biological systems via quantification of landscape and flux

In this review, we explore the physical mechanisms of biological processes such as protein folding and recognition,ligand binding, and systems biology, including cell cycle, stem cell, cancer, evolution, ecology, and neural networks. Our approach is based on the landscape and flux theory for nonequilibrium dynamical systems. This theory provides a unifying principle and foundation for investigating the underlying mechanisms and physical quantification of biological systems.     

广义态空间中Krein-Milman定理的算子类似

讨论在C^*-凸理论下C^*-代数A的广义态空间S_Cⁿ(A)中的Krein-Milman型问题.证明了S_Cⁿ(A)的任意一个BW-紧的C^*-凸子集K都具有一个C^*-端点,而且K是其C^*-端点的C^*-凸包.     

Effects of different dopants on switching behavior of HfO_2-based resistive random access memory

In this study the effects of doping atoms(Al, Cu, and N) with different electro-negativities and ionic radii on resistive switching of HfO2-based resistive random access memory(RRAM) are systematically investigated. The results show that forming voltages and set voltages of Al/Cu-doped devices are reduced. Among all devices, Cu-doped device shows the narrowest device-to-device distributions of set voltage and low resistance. The effects of different dopants on switching behavior are explained with deferent types of CFs formed in HfO2 depending on dopants: oxygen vacancy(Vo) filaments for Al-doped HfO2 devices, hybrid filaments composed of oxygen vacancies and Cu atoms for Cu-doped HfO2 devices,and nitrogen/oxygen vacancy filaments for N-doped HfO2 devices. The results suggest that a metal dopant with a larger electro-negativity than host metal atom offers the best comprehensive performance.     

线性Ce^＊—半范数的次可乘性

证明了具有单位元的*-代数上的任何线性Ce^*-半范数（或具有自伴核的线性Ce0^*-半范数）一定是C^*-半范数。     

宽带城域网高速路由和交换技术的研究与设计

在对宽带城域网的体系结构进行系统分析的基础上，结合对ATM技术和IP技术性能的分析与比较，对宽带地域网的高速路由和交换技术做了研究和探讨，提出了一种基于MPLS技术，融合ATM和IP特点的分布式路由设计思想、构建了高速路由交换的体系结构模型。     

W~*-代数中的C~*-端点

本文讨论Ｗ＊－代数Ａ中闭单位球Ａ１的Ｃ＊－端点问题．主要结果是：是一个投影｝；一个对称元｝；其中，Ａ～Ｓ１和Ａ～Ｐ１分别表Ａ１中自伴元全体所构成的集合和Ａ１中正元全体所构成的集合．     

Operator analogue of the Krein-Milman theorem in the generalized state spaces

We discuss the Krein-Milman-type problems in the C* -convexity theory for the generalized state space of C*-algebraA. The main results are that every BW-compact, C*-convex subset of possesses a C*-extreme point and every BW-compact, C* -convex subset of is the C^*-convex hull of its C*-extreme points.