基于智能体模拟的结构性疏散计划设计研究

展示了一个基于Agent模拟方法的框架方法,用于为危急中的复杂技术系统设计结构性的疏散计划.该计划利用复杂自适应系统的模拟方式,并采用基于智能体模拟的方法作为认知工具来设计整体系统的疏散方案.结构化的疏散计划应用文中提出的整体性技术框架,没有采用标准化的常规方法.提出了一个使疏散人群能够更加适应的调整危机时刻的紧急情况和减少无效疏散的建议性方案.本框架方法在一个典型的复杂自适应系统一地铁火灾中得到应用.     

五味子多糖和游泳运动对疲劳大鼠中枢神经系统的影响

通过对大鼠的分组对照实验,研究了五味子多糖和游泳运动对疲劳大鼠大脑皮层自由基代谢的影响.实验表明,适宜的游泳运动和五味子多糖可以防止力竭大鼠大脑皮层缺血缺氧所导致的脂质过氧化,清除自由基危害,延缓大鼠中枢神经疲劳的出现.     

一种Gm-C复数带通滤波器调谐电路的设计

采用TSMC 0.18μm RF CMOS工艺,设计了一种Nauta跨导的Gm_C复数带通滤波器调谐电路,可实现滤波器的频率和Q值同时调谐.该调谐电路的频率调谐环路使用数字鉴频器和改进结构的数模转换器,Q值调谐电路采用能够在高输出电压下准确镜像电流的电流镜,整个调谐电路具备有利于改善滤波器线性度的高调谐电压输出能力.测...     

一种基于NSCT和图像融合的多视点图像编码方法

提出了一种基于相邻视点图像融合的多视点图像编码方法。该方法首先将多幅同一场景的多视点视频图像进行融合,得到一幅含有大部分信息的融合图像、边信息和视差矢量。之后对融合图像作基于NSCT的类SPIHT编,对边信息和视差矢量进行熵编码。该编码方案,通过图像融合,有效降低了多视点视频图像传输和存储过程中的信息量。解码后的图像视觉质量和实验结果表明,该方法能更有效地表示图像的边缘信息,获得比传统编码方法更高的峰值信噪比,具有实践意义。     

Seismic tomography showing subduction and slab breakoff of the Yangtze block beneath the Dabie-Sulu orogenic belt

Seismic tomography reveals that a subducted ancient block has been preserved beneath the Moho of the Dabie-Sulu orogenic belt. Taking into account of geological and geochronological data, we inferred from the tomographic images that the Yangtze block was subducted northward beneath the Sino-Korean block and broken off at the depth <200 km during 200—190 Ma. The slab breakoff of the Yangtze block is the most important dynamic mechanism to control the exhumation of UHP rocks.     

Microsatellite DNA analysis proves nucleus of interspecies reconstructed blastocyst coming from that of donor giant panda

A method for DNA isolation from early development of blastocyst and further analysis of nuclear and mitochondrial DNA was developed in present study. Total DNA was prepared from interspecies reconstructed blastocyst and a giant panda specific microsatellite locus g⁰¹⁰ was successfully amplified. DNA sequencing of the PCR product showed that two sequences of reconstructed blastocysts are the same as that of positive control giant panda. Our results prove that the nucleus of interspecies reconstructed blastocyst comes from somatic nucleus of donor giant panda.     

计算芳烃折光指数的新方法—基团键贡献法

根据分子中基团的特性和连接性,将基团贡献法和化学键贡献法有机地结合在一起,发展了一种计算芳烃折光指数的方法－基团键贡献法,该方法同时具有基团贡献法和化学贡献法的特点。应用基团键法对212种芳烃（烷基苯、烷基萘和烷基联苯）折光指数的计算结果表明,折光指数计算值与实验值之间的一致性令人满意,平均误差0.15%。     

Shoshonitic intrusive suite in SE Guangxi: Petrology and geochemistry

A NE-direction Mesozoic shoshonitic intrusive suite in SE Guangxi has been identified in terms of geological, petrological and geochemical investigations. The shoshonitic intrusives are characterized by enrichment of LILE, HFSE and LREE and no obvious Nb-Ta depletion, similar to those potassic rocks formed in within-plate and rifting environments. Unlike most shoshonitic rocks forming in arc settings, the SE Guangxi shoshonitic intrusives were likely generated during regional lithosphere extension induced by upwelling of asthenosphere mantle.     

抒情的与传奇的--萧红张爱玲小说文体片论

萧红和张爱玲所创造的现代抒情小说和传奇小说,突破了传统小说单一的文体模式,为小说创作的抒情化及通俗化带来了新的形式和新的世界。忧郁感伤的抒情格调与冷静细致的反讽笔法、松散自由的散文体与传统小说的故事性、充满诗意的美学意蕴与繁复艳丽的意象追求,形成一种鲜明的对照,成为现代小说史上两种个性不同的艺术建构。     

商丘、宁陵、民权三县农业生产结构分析

商丘、宁陵、民权三县是黄淮海平原低产区的重点综合治理区。本文基于对三县农业生产条件及其历史发展的调查,对该区的农业生产结构及其与生产条件的关系进行了初步分析,为充分发挥本区自然优势,有效地利用外资,彻底治理黄淮海低产区,提出了初步的调整意见,并预测了今后应遵循的发展方向。