用最小面积法求解Anti-de-Sitter黑洞熵

本文利用基于贝肯斯坦（Bekenstein）熵边界假设的最小面积方法求解Anti-de-Sitter黑洞熵。在此方法中黑洞熵和辐射或吸收粒子的能量-动量（色散）关系有很密切联系,从而可以通过修正的色散关系而得到对黑洞熵的修正。本文讨论了2种修正色散关系对Anti-de-Sitter黑洞熵的影响。第1种色散关系的修正项与普朗克能标呈线性关系,结果得到的黑洞熵的主要修正项与视界面积的方根成正比,而另一种修正色散关系含有普朗克能标的平方项,所求得的黑洞熵的主要修正项是视界面积的对数形式,这个结果与其它通过量子引力途径得到的结果相吻合。     

扩展企业的语义创新管理系统框架

在当今激烈的竞争环境中,创新管理对企业的生存和发展十分重要。对扩展企业而言,由于创新信息的分散性和异构性,要实施一个成功的创新管理相当困难。然而,语义网的发展为解决该问题开辟了新的途径。在元数据和RDF访问技术的基础上提出了一个语义创新管理系统框架和体系结构。     

ATTS的扩展模型

文章基于传统模型的一些缺陷扩展了传统模型，然后给出一个算例证明这个模型是有效的．     

Using local geopotential model to implement underwater passive navigation

A main aspect of underwater passive navigation is how to identify the vehicle location on an existing gravity map, and several matching algorithms as ICCP and SITAN are the most prevalent methods that many scholars are using. In this paper, a novel algorithm that is different from matching algorithms for passive navigation is developed. The algorithm implements underwater passive navigation by directly estimating the inertial errors through Kalman filter algorithm, and the key part of this implementation is a Fourier series based local geopotential model. Firstly, the principle of local geopotential model based on Fourier series is introduced in this paper, thus the discrete gravity anomalies data can be expressed analytically with respect to geographic coordinates to establish the observation equation required in the application of Kalman filter. Whereafter, the indicated gravity anomalies can be gotten by substituting the inertial positions to existing gravity anomalies map. Finally, the classical extended Kalman filter is introduced with the differences between measured gravity and indicated gravity used as observations to optimally estimate the errors of Inertial Navigation System (INS). This navigation algorithm is tested on simulated data with encouraging results. Although this algorithm is developed for underwater navigation using gravity data, it is equally applicable to other domains, for example vehicle navigation on magnetic or terrain data.     

MFC扩展DLL库深入研究和制作实例

本详细阐述了MFC扩展DLL的内部工作机制及其作用．     

OBSERVABILITY OF EXTENDED TIMED EVENT GRAPH

In this paper, we study some results of extended timed event graph (ETEG) by using graph theory's methods in the dioid framework. A necessary and sufficient condition for the observability of ETEG is obtained and ETEG's standard structure is also established.     

在01集上的扩张类比

在０１集上给出一类具有普遍意义的扩张类比，并利用此结果讨论命题代数和集合代数的扩张推理：增加条件Ｘ，使前提Ａ能演绎出结论Ｓ，即Ｘ∧ＡＳ；以及哈密顿回路判定问题     

采用扩展卡尔曼滤波实现无传感的调速系统仿真

综述了采用扩展卡尔曼滤波实现无传感的场定向矢量控制变频调速系统在MATLAB6．5／SIMULINK5．0环境下仿真搭建过程，并对仿真结果进行了讨论。     

用于描述排队系统的广义Petri网

本文推广了Petri网的概念。新定义的广义Petri网可用于描述排队系统,文中给出了用广义Petri网描述排队系统,即建立排队系统的广义Petri网的步骤,还给出了关于广义Petri网的一些初步结果。     

一种连续系统辨识方法及其在飞控规律辨识中的应用

针对某型飞机控制系统的规律辨识问题，对文献[2,3]提出的连续系统辨识方法进行了改进，给出了该方法可以适用的辨识对象的一般模型，同时通过对误差模型和极小化指标的改进，把原方法推广至时变参数辨识领域。数值仿真结果表明该方法成功的解决了该飞控系统的辨识问题。该方法还很容易推广到一类具有相同特征的线性，非线性，时变或时不变的参数辨识中。