用核磁共振量子计算机研究量子退相干问题

量子退相干理象是由系统与环境的纠缠所引起的系统相干性的消失，是一种纯粹量子力学效应[1].     

A Framework to Support Agility Strategy Formulation

In the last decade, turbulent times and uncertainti es in the business environment have made ground for a new business era, and “chang e“ has become a major characteristic of the new era. This has resulted in tirele ss evolution of business systems and the creation of new manufacturing and manag ement philosophies. Agile Manufacturing (AM) is a step forward in generation of new means for better performance and success of business, and in practice is a s trategic approach to manufacturing by considering ...     

量子搜索与两体弹性碰撞过程的相似性

量子搜索问题是由Grover首先提出的,其核心是利用量子相干性加速搜索过程[1].量子系统在外部条件和内部作用下演化,使待搜索本征态的系数接近于1,其他本征态的系数接近于0.通过对量子搜索过程的研究,我们发现了量子搜索与经典力学中两体弹性碰撞过程的相似性.利用这种相似性,可以讨论量子搜索的内在本质以及相关的问题.     

A calcium sensor in the sodium channel modulates cardiac excitability.

Sodium channels are principal molecular determinants responsible for myocardial conduction and maintenance of the cardiac rhythm. Calcium ions (Ca2+) have a fundamental role in the coupling of cardiac myocyte excitation and contraction, yet mechanisms whereby intracellular Ca2+ may directly modulate Na channel function have yet to be identified. Here we show that calmodulin (CaM), a ubiquitous Ca2+-sensing protein, binds to the carboxy-terminal 'IQ' domain of the human cardiac Na channel (hH1) in a Ca2+-dependent manner. This binding interaction significantly enhances slow inactivation-a channel-gating process linked to life-threatening idiopathic ventricular arrhythmias. Mutations targeted to the IQ domain disrupted CaM binding and eliminated Ca2+/CaM-dependent slow inactivation, whereas the gating effects of Ca2+/CaM were restored by intracellular application of a peptide modelled after the IQ domain. A naturally occurring mutation (A1924T) in the IQ domain altered hH1 function in a manner characteristic of the Brugada arrhythmia syndrome, but at the same time inhibited slow inactivation induced by Ca2+/CaM, yielding a clinically benign (arrhythmia free) phenotype.     

强S一闭空间

本文从强半开集出发，定义了强Ｓ一闭空间，讨论了强Ｓ一闭空间的特征，它的半正则化及强Ｓ一闭空间的强半连续象。     

FOXBASE~＋与8031单片机系统的接口设计

本文提出一种ＦＯＸＢＡＳＥ＋关系型数据库管理系统与８０３１单片机系统三硬、软接口设计方法．为单片机应用系统后续数据的处理提供了有效的手段．     

PADE’型逼近的收敛性

文章给出了Ｐａｄｅ型逼近积分形式的误差公式，并用该公式证明了Ｐａｄｅ型逼近的两个收敛定理．     

东莞理工学院图书馆现状及发展对策

文章在分析了东莞理工学院图书馆在藏书、人员以及文献保障能力等现状的基础上，提出了具体的应对措施。     

现代区域地理学初论

现代区域地理学与传统区别在于加强应用性。它强调人与自然环境相互关系，承认区域性质或功能发现的认识过程，提倡理论与方法的现代化与多样化。     

信号、噪声通过线性工作系统设备过程中信噪比的变化

本文就信号、噪声通过线性工作系统设备过程中信噪比变化的问题，提出一个简单和实用的模型，建立相应的计算公式，并在视频领域和音频领域对公式展开讨论，进一步阐述公式的实用性，可作为工作系统的设计和调整的参考，以祈获得更好的社会效益和经济效益．