舰船噪声的状态空间重构与特征压缩

介绍了以Takens的嵌入定理为基础的状态空间重构混沌信号处理方法，为了降低特征维数、减小特征成分的相关性、突出特征的差异性，同时引入了K-L(Karhtmen-Loeve)变换。利用舰船噪声信号的混沌特性，提出了一种基于状态空间重构与K-L变换相结合的特征提取方法，并用此方法对舰船噪声信号进行特征压缩。计算机仿真结果表明该方法具有较好的分类效果。     

一种基于Internet信道的增强H.26L鲁棒性的方法

为了提高典型Internet信道条件下H．26L帧内编码宏块的鲁棒性，提出了一种新的方法。在编码端按适当的判断策略为部分帧内编码宏块提供了运动向量，同时结合对数据包的不均等保护机制，使得解码端对帧内编码宏块的时域错识掩盖能力大大增强。实验结果表明，该方法使H．26L视频流具有更强的误码抵抗能力。     

基于RAGA的PPC模型在节水灌溉项目投资决策中的应用

针对节水灌溉项目投资决策问题 ,采用高维降维技术——投影寻踪分类模型 ( PPC) ,利用基于实数编码的加速遗传算法 ( RAGA)优化其投影方向 ,将多维数据指标 (样本评价指标 )转换到低维子空间 ,根据投影函数值的大小评价出样本的优劣 ,从而做出决策 .最大限度避免了模糊综合评判中权重矩阵取值的人为干扰 ,取得了满意效果 ,为节水灌溉项目投资决策及其它评判决策问题提供一条新的方法与思路 .     

Viterbi译码器的FPGA实现技术研究

提出了一种实现高速并行Viterbi译码器的结构，并且将SMDO法^[1]用于幸存路径存储和输出模块部分．本设计已基于FPGA得以实现，获得了译码速度快、延时小的效果．     

股权分置解决方案的评价指标体系

系统分析了解决股权分置问题中需要考虑的各种指标.采用德尔菲法和统计分析对指标进行筛选,建立相应的层次指标体系,并利用层次分析法合理确定出各项指标的权重.研究表明:保证证券市场稳定在10项考虑的指标中占了很大的权重,具有绝对的重要性;其次是优化资源配置.     

磁性d波超导特性的研究

通过外加Zeeman磁场在d波超导中,在平均场近似下,自洽求解d波超导能隙和Zeeman能量的方程,研究了Zeeman效应对d波超导序参数和热力学势的影响,阐述了磁性与超导共存条件.     

风流总被雨打风吹去--结合庄子的自由观看稽康的自由追求

魏晋玄学受庄子哲学思想的影响颇深，而在代表玄学思想的“竹林七贤”中，严格地说，只有稽康以其独到新锐的玄学思想，狂放任诞的知情言行，将人格精神的自然真率坚持到了生命的终点。现结合庄子哲学思想的重要组成部分——自由观，对稽康的自由追求作些分析。     

先秦献捷礼考

先秦献捷礼是中国古代的一种军礼，特指诸侯国对蛮夷戎狄用兵胜利后向周天子告捷的庆祝活动，诸侯国之间发生战争不行献捷礼。春秋时期，诸侯国向周天子的献捷礼明显减少，同时出现了诸侯国相互献捷的新现象。献捷礼的变化反映了随着民族融合的空前加强，周夷矛盾渐趋缓和，而周人内部矛盾日渐尖锐的社会事实。     

The specific contribution of object''''s origin on artifacts categorization

Gelman and Bloom found that adults and children's object naming was sensitive to how an object was created (man-made or not), but they did not reveal on which specific level of conceptual system this effect was. Using a free-naming task and a force-choice task, two experiments were conducted to test a hypothesis that this effect was specifically on domain level ("artifact/non-artifact" distinction). In Experiment 1, participants were asked to name shortly-depicted objects, rate their confidence, and report their reasons for each naming response. Results showed that most of the naming responses in "man-made" condition were in artifact domain, and most in "natural" condition were in non-artifact domain, although in both conditions names were very divergent on basic level. In Experiment 2, another group of participants were asked to choose one from two names (one in artifact domain and the other in non-artifact domain) to match the same shortly-depicted objects presented in the first experiment. Re-sults of Experiment 1 on domain level were replicated in Experiment 2. These convergent findings supported the hypothesis that the effect of object's origin is specifically on domain level of conceptual system of objects. Reasons explicitly reported for naming responses in Experiment 1 suggested that participants might automatically infer objects' functions in "man-made" condition but not in "natural" condition. Here the function-based hypothesis of artifacts classification is discussed.     

基于委托代理理论的企业层级结构分析

运用委托代理理论对层级结构进行了分析,针对层级组织中存在的问题,指出层级结构的扁平化和网络型组织是层级结构组织的高级代替。