适应性控制的数学理论

控制理论的主要概念包括控制体、控制目的和控制算法。多年来控制理论的基本假设是：控制体其数学描述（模型）框架是已知的，但是在许多工程应用问题中，控制体信息并非已知，这就产生了与经典控制理论不同的适应性控制理论。本书有三大特点：1.宽泛的物体研究范围；2．不为西方读者易知的东方学派（Eastern Schoo1）适应性理论研究的详细描述；3．首次提出了适应性控制算法的正式定义。     

网格环境中面向按需服务的软件license管理方法

针对实际网格环境中对应用软件的使用存在分布不均、相对缺乏的问题,讨论了网格环境中用户对应用软件及其license的需求情况,提出了一种新型的对用户进行按需服务的软件license管理方法.软件许可证数目不再受到限制,而是按照用户的需求弹性变化,面向用户进行记账.许可证管理系统的主要功能是用户的注册、license授权,认证、使用的动态跟踪与监控,记账、统计与优化等.这种方案能够消除过去有限license数目造成的瓶颈问题,并实现在网格环境中应用软件的充分共享和价值的最大化.     

四川江油龙潭子下-中三叠统界线剖面的稀土元素地球化学特征

本文对四川江油龙潭子下－中三叠统界线剖面的稀土元素含量作了测试和分析。结果表明，界线层内有不同程度的稀土元素富集，其含量较上覆、下伏地层为高，且显示出Ｃｅ、Ｅｕ的负异常。     

多效唑在棉花滴灌上的应用效果研究

在膜下滴灌棉田，通过滴灌系统将多效唑ＰＰ３３３ 随水土施对棉花进行化学调控。研究表明，多效唑随水土施可有效地控制植株生长，矮化节间长度，增加单铃重，提高衣分率。施用多效唑可显著增加棉花产量，提高经济效益，与叶面喷施缩节胺相比，每公顷增产籽棉４４７ ．６ ｋｇ，增产率１０ ．３８ ％ ，每公顷净增收４６３ ．４ ～１ ６７０ ．９ 元     

金属丰度和对流超射对恒星演化影响的初步探讨

文章采用了pd90程序模拟了5 M⊙的恒星,在主序和主序后的演化情况。并且根据其程序给出的计算结果,绘出了5 M⊙恒星的赫罗图。选择金属丰度和对流超射的不问参数,形成六条赫罗图线。在赫罗图中,对5 M⊙的恒星其金属丰度和对流超射对恒星演化的影响进行讨论。从赫罗图中的lgL/L⊙和lgTeff,与演化时间序列图,可以直观的得出金属丰度和对流超射变化对恒星演化的影响。     

Hydrogen sulfide induced by nitric oxide mediates ethylene-induced stomatal closure of <Emphasis Type="Italic">Arabidopsis thaliana</Emphasis>

Pharmacological, laser scanning confocal microscopic (LSCM), real-time PCR and spectrophotographic approaches are used to study the roles of hydrogen sulfide (H2S) and nitric oxide (NO) in signaling transduction of stomatal movement response to ethylene in Arabidopsis thaliana. In the present study, inhibitors of H2S synthesis were found to block ethylene-induced stomatal closure of Arabidopsis. Treatment with ethylene induced H2S generation and increased L-/D-cysteine desulfhydrase (pyridoxal-phosphate-dep...     

First-principle study on NiSn0.5Ti0.5 phase as electrode materials for lithium ion battery

The electronic structure and electrochemical parameters of ternary NiSn_0.5Ti_0.5 phase are investigated by plane-wave pseudopotential method of the first-principle. The interstitial sites are firstly filled with lithium atoms, and then the substitution for Ni sites occurs. The results show that the Fermi level of lithium-intercalated phase goes up with the increasing lithium concentration. These interactions of M-M covalent bonds (M=Ni, Sn, Ti) become weak, while Li-M bonds are found to increase. NiSn_0.5Ti_0.5 phase is characterized with high theoretical capacity and low voltage of lithium-intercalation. The obvious volume effect from 77.15% to 189.94% would lead to the failure of the electrode material, and therefore the NiSn_0.5Ti_0.5 compound should be limited as low as possible in multi-element Sn-based alloy.     

Exploration of nano-surface chemistry for spectral analysis

The applications of nano-surface chemistry in the field of spectral analysis have attracted growing interest in recent years.In this article,we reviewed the applications of nanomaterials-based chemical reactions for spectral analysis,including the development in plasma-catalysis,surface-enhanced spectroscopy,separation and preconcentration,chemical vapor generation,labeling and signal amplification.Introduction of nano-surface chemistry to spectral analysis not only improves the sensitivity and selectivity,broadens the application range of spectral analysis,but also affords analytical community special characterization tools.     

冷季型草坪根系对干旱反应的研究

本文探讨了草坪草在干旱条件下质量的变化与生根深度和根长密度的关系，分析了草坪草抗旱能力的差异性，根系与抗旱性的关系以及草坪抗旱机理，为我国草坪草引起种植，新品种选育提供理论依据。     

运用模糊数学综合评判法分析股票公司纵向发展的研究

模糊数学综合评判法，作为一种管理数学方法，在管理领域得到广泛的应用。本文将这种方法应用于股票上市公司纵向比较，用以支持个股选择问题。