关于Hopfield型神经网络稳定性的注记

对于李雅普诺夫函数的径向无界性证明，给出了严格的证法．同时在激励函数单调递增的条件减弱的情况下，给出了两条渐近稳定的定理，并给了严格的数学证明．最后用实例说明前人的工作是基于不同假设条件的，而非强弱程度不同的条件．     

一般灰色趋势关联系统及其分析方法研究

结合灰色趋势关联度，利用数学一般系统理论，提出了一般灰色趋势关联系统模型，作为该模型的应用，对灰色趋势关联分类、灰色趋势关联聚类、灰色趋势关联预测等三种应用方法进行了研究．     

Linux-based Platform for Open Architecture Controller and Its Modular Developing Method

Linux-based Platform for Open Architecture Controller ( POAC ), a new open architecture controller and its modular developing method are discussed. POAC divides the application software of controller into the developing system and the application system. In the developing system, PAOC abstracts a series of function modules with unified data interface and function interface. In the application system, POAC defines the model of the architecture module, realizing the interoperability and interchangeability between the architecture modules. The modular developing method entities the users to make up an application system with some architecture modules, which consist of a set of function modules. The modular developing method decreases the developing time from the standard of controller architecture to the product.     

Business Strategy and Perceived Benefits of Internet Banking: Their Impact on Banks'''' Strategic Responses to China''''s Entry to WTO

With the entry to WTO and development of IT, banks in China are adjusting their competitive strategies to meet the competition. Internet banking has become a kind of strategic choice to response to the entry to WTO. Based on relevantly selective reviews of literature of strategy theory and research, a model is developed to study banks' strategic response to entry to WTO. According to a survey of 192 sets of questionnaires, this study finds that external pressure, business strategy and perceived benefits of Internet banking would influence banks' perceived increase in Internet banking investment. And banks' perceived increase in Internet banking investment has no difference between big banks and small banks.     

非注水井抽油机模糊控制节能器的研究

将自学习模糊控制器用于控制抽油机的运行 ,对节能器节能方案、数据采集分析、控制器的模糊自学习、控制器程序设计等进行了研究。该节能器采用模糊机制控制抽油机 ,将抽油机连续抽取方式变成智能化间歇抽取方式 ,当抽油机工作在空捞或半捞状态时自动停止工作。建立了自学习模糊控制模型 ,并根据此模型判断井内流体的蓄积能量是否满足再次连续满抽的条件 ,条件满足时抽油机才会再次启动。此方法可减少抽油机的整体运行时间 ,并为难以控制的模型提供合适的控制方案 ,避免泵空及无效抽汲 ,较大幅度地节约电能。此方法对注水井节电效果不明显 ,在较寒冷地区使用时要调整间歇停井时间 ,以免停井时管线冻住     

煤CS2—NMP萃取物丙酮可溶物的GC／MS分析

煤的溶剂萃取物富含多种高附加值聚合材料的单体。依次使用CS2—N御混合溶剂(1：1，V／V)、丙酮对南桐烟煤和云南褐煤进行级分，并对其丙酮萃取物(AS级分)的组成用GC／／MS进行分析。结果表明：丙酮可溶级分中主要含有脂肪烃、芳香族化合物、含氧衍生物和含氮化合物等，其中含氮杂原子化合物以甾类化合物为主，含氧衍生物则主要为酯、酚。2种煤样的AS级分均没有检测到硫、磷杂原子化合物，也没有发现典型的稠环芳香族物质如萘、菲、蒽等的存在。在南桐烟煤的AS级分中，检测到十六烷酸三甲基硅酯、N—丙炔基—N′N′N″N″—四甲基—1，3，5—三嗪三胺两种物质。     

基于H∞控制理论的二自由度内模控制器设计

内模控制可以较好地解决跟踪问题 ,但是如果存在标称模型与实际模型失配的问题 ,跟踪性能可能受到破坏。常规的内模控制在碰到对象模型失配时 ,可通过设计一个滤波器来消除模型失配造成的影响 ,但是滤波器的设计并没有一定准则。文中给出一种基于H∞ 控制理论的二自由度内模控制器设计方法 ,主要考虑了标称模型与实际模型的失配性 ,将跟踪问题转化成一个标准的H∞ 控制问题。该二自由度控制器由滤波器和反馈控制器组成。仿真结果表明了此控制器的有效性。     

A common variant of HMGA2 is associated with adult and childhood height in the general population

Human height is a classic, highly heritable quantitative trait. To begin to identify genetic variants influencing height, we examined genome-wide association data from 4,921 individuals. Common variants in the HMGA2 oncogene, exemplified by rs1042725, were associated with height (P = 4 x 10(-8)). HMGA2 is also a strong biological candidate for height, as rare, severe mutations in this gene alter body size in mice and humans, so we tested rs1042725 in additional samples. We confirmed the association in 19,064 adults from four further studies (P = 3 x 10(-11), overall P = 4 x 10(-16), including the genome-wide association data). We also observed the association in children (P = 1 x 10(-6), N = 6,827) and a tall/short case-control study (P = 4 x 10(-6), N = 3,207). We estimate that rs1042725 explains approximately 0.3% of population variation in height (approximately 0.4 cm increased adult height per C allele). There are few examples of common genetic variants reproducibly associated with human quantitativetraits; these results represent, to our knowledge, the first consistently replicated association with adult and childhood height.     

全球定位系统与惯性导航系统的组合系统

全球定位系统是最新发展的高精度导航系统。由空间、控制和用户系统组合而成。用户利用导航星的导航信号可获得高精度的定位、导航和时间信息。该系统具有广泛的应用前景。本文介绍了全球定位系统与惯性导航系统组合系统的研制概况,系统组成,功能和应用前景。     

系统工程及其理论基础

本文在介绍钱学森系统科学体系结构的基础上,着重讨论了系统工程的方法及其理论基础。后者主要是指系统学的建立。这是在钱学森亲自指导下的一个讨论班,关于系统学的研究对象、内容、方法的一些结论介绍。