基于二维MB-LBP特征的人脸识别

提出了一种基于二维多尺度局部二进制模式的人脸识别方法,对一幅人脸图像进行分块,对每一块的图像进行MB-LBP（Multi-scale Block Local Binary Patterns）算子运算,将MB-LBP与灰度共现矩阵结合起来得到了可以更好地描述局部纹理空间结构的二维MB-LBP特征,将各子块的二维MB-LBP特征进行连接形成人脸特征。该算法在ORL和CMU-PIE人脸数据库上进行测试,选择了支持向量机（SVM）作为分类器,并与传统的基于一维LBP特征进行比较,结果表明提出的算法在人脸识别问题上的有效性和优越性。     

清江梯级水电站短期优化调度模型研究

该文建立了三个复杂的清江流域梯级水电站短期优化调度模型，其中包括了蓄水位约束、用水约束、出力约束，利用POA(逐步逼近法)法解决水电站群的优化问题，较大的提高了水库效益，获得较为满意的结果。     

Design-theoretical study of cascade CO2 sub-critical mechanical compression/butane ejector cooling cycle

In this paper an innovative micro-trigeneration system composed of a cogeneration system and a cascade refrigeration cycle is proposed. The cogeneration system is a combined heat and power system for electricity generation and heat production. The cascade refrigeration cycle is the combination of a CO₂ mechanical compression refrigerating machine (MCRM), powered by generated electricity, and an ejector cooling machine (ECM), driven by waste heat and using refrigerant R600. Effect of the cycle operating conditions on ejector and ejector cycle performances is studied. Optimal geometry of the ejector and performance characteristics of ECM are determined at wide range of the operating conditions. The paper also describes a theoretical analysis of the CO₂ sub-critical cycle and shows the effect of the MCRM evaporating temperature on the cascade system performance. The obtained data provide necessary information to design a small-scale cascade system with cooling capacity of 10 kW for application in micro-trigeneration systems.     

Hybrid absorption heat pump with ammonia/water mixture – Some design guidelines and district heating application

An ammonia/water mixture can be used as an efficient working fluid in industrial-type heat recovery heat pumps and heat transformers. Several configurations of such systems are possible depending on the availability of the waste (thermal) and primary (thermal or electrical) energy sources. This article presents the configurations, the main thermodynamic and hydraulic parameters, and some design guidelines and operating experiences of a medium-temperature, ammonia/water-based compression/re-sorption heat recovery system for district domestic hot water production. In-field experiments have proven the advantages of the concept and its applicability limits in a particular economical environment, while hot water was produced at 55 °C with industrial cooling water at 36 °C as a waste heat source.     

Application of the Extended Langmuir Model for the Determination of Lyophobicity of 1-Propanol in Acetonitrile

Surface tensions (σ) of binary liquid mixtures of acetonitrile (ACN) with 1-propanol (PrOH) were measured over the entire composition range at eight different temperatures, 278.15 K, 283.15 K, 288.15 K, 293.15 K, 298.15 K, 303.15 K, 308.15 K, and 313.15 K. The lyophobicities (β) of the surfactant PrOH relative to that of ACN as well as the surface mole fractions () of PrOH at various temperatures were derived using the extended Langmuir model (Langmuir 17, 4261, 2001). The β values indicate the greater affinity of PrOH for the surface, and this trend slightly increases with rising temperature. The determined values indicate that the surface concentration of PrOH is always higher than its bulk concentration and consequently confirm that the surface is enriched with PrOH.     

立体二叉树及其应用

文章提出了立体二叉树的数据结构,对立体二叉树的基本概念和性质进行了讨论;对满立体二叉树结构的结点分布和结点编码之和问题进行了研究并给出了有关的公式;最后探讨了立体二叉树在分类中的应用,提出了立体堆的分类方法,并对它的算法实现进行设计与分析,得出了立体堆分类方法在最坏情况下的时间复杂性,从而减少了堆分类方法的时间复杂性的常数因子。     

二进制程序安全缺陷静态分析方法的研究综述

对现有二进制程序安全缺陷静态分析方法进行了综述和分析,提出了整个程序分析过程中的关键问题以及二进制程序安全分析的主要研究方向.通过对二进制程序缺陷静态分析流程的总结,发现二进制程序信息恢复是整个分析过程的关键,构造内容丰富的、通用的中间表示是二进制程序缺陷分析的重要研究方向.     

基于概念的折半查找算法

自顶向下或自底向上两种标准查找方式不适合于具体领域逻辑,且缺乏灵活性.模拟有序数组中的折半查找,提出逻辑空间上的折半查找方法,证明该查找方法在保持完备性和非冗余性的同时,还提供了更好的灵活性,最后给出了该查找的通用算法,并分析其复杂性.     

一种故障树向BDD的转化方法

针对故障树分析的关键技术—排序和置换,提出一种基于BDD的快速有效的（LNPC）方法。该方法采用制定的排序和置换策略直接完成子事件的排序与门事件的置换,一次性完成故障树到BDD的转化和优化,增加了获取最小规模BDD的排序机会,同时降低了BDD的存储空间且不需要先写出故障树的布尔函数。算法分析与实验结果表明该方法对不同的故障树转化是有效的。     

一种新的IP路由表快速搜索技术

随着因特网的飞速发展以及128位地址的IPv6的出现,路由表变得日益庞大,这给IP目标地址的查找速度提出了更高的要求。另外最长前缀匹配技术的出现使过去传统哈希搜索技术不再适用。为此,论文针对现有IP查找技术的缺点和不足,提出了一种新的二叉搜索算法。文中还对新的路由表数据结构进行了详细描述,并给出了该算法的一种软件实现方案。这种算法具有良好的可扩展性,不需要对现有协议进行改动,在实践中证明其具有良好的报文转发性能。