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Watching the forms appear, multiply in variation, get selected, ramify in form, winnow again, and begin to drift over generations to ever more complicated shapes, neither mind nor gut can escape the impression that Sims is really breeding images.

眼看着这些形状出现,在变化中繁殖,被选中,发生形状的分枝,再次精选,然后通过若干个世代距祖亲样本远,生成更加复杂的形状,不论是理智还是直觉都无法回避这样一个印象:西姆斯实际上正在繁育[5]图像。

In chapter 1, regression models with censored data, LSE for censored regression models and LAD estimation for models with fixed censoring point are introduced. Then, we state our main results for LAD estimator of nonlinear regression models with randomly censored data, including consistency, boundedness in probability and asymptotic normality. The proofs of our main theorems are given in detail. In chapter 2, we state the main difficulty of obtaining numerical solution for censored LAD estimation, and recall the history of studies on this problem including some anterior algorithms.

在第一章,首先介绍删失线性回归模型的基本概念和性质,并对已有的估计方法,如最小二乘估计、固定点删失的最小一乘估计等做了简单的回顾;然后,把固定点删失线性回归模型的最小一乘估计方法推广到了随机删失、非线性模型的情形,并得到了估计量的一些近性质,如相合性、近正态性等;最后,给出主要结果的详细证明过程。

Panicle open, 10–30 cm; branches in distant whorls, capillary, flexuous, 5–15 cm, mostly unbranched, tipped by a raceme; racemes 2–5-noded with 7–13 spikelets, sometimes branched with up to 40 spikelets, disarticulating at maturity, one spikelet of a pair sessile, the other pedicellate; rachis internodes and pedicels slenderly clavate, margins ciliate, hairs 0.7–1 mm. Spikelets 4.5–5 mm; callus hairs ca. 1 mm; lower glume lanceolate, thinly pilose, veins smooth below middle, scaberulous above, apex acuminate; upper glume ciliate on margins, acuminate or emarginate and mucronate; lower floret sterile, palea reduced; upper lemma 2-lobed to middle; awn 5.5–8 mm.

圆锥花序打开,10-30厘米;在远轮生方面的分枝,发状,,5-15厘米,多数不分枝,被总状花序端部; 7-13小穗2-5有节具的总状花序,40小穗的有时分枝具可达,成熟时脱节,一对无梗,另一个的一小穗;棍棒状的轴节间和花梗slenderly,边缘具缘毛,头发0.7-1毫米小穗4.5-5毫米;胼胝体毛约1毫米;披针形,稀疏具柔毛的下部的颖片,脉平滑的中间以下,在上面微糙,先端尖;在边缘上具缘毛的上面颖片,尖的或微缺和短尖;不育的下部小花,退化的内稃;上面外稃2裂的至中部;芒5.5-8毫米花粉囊2-3毫米。

The evolution process under the control of the multigeodynamic force system (including the boundary forces of Eurasia-Pacific-Indian three massive plates around Nansha block, effects of the deep mantle, relative soft layer-sliding planes within Nansha lithosphere block and the earth's rotational inertial force) can be briefly divided four stages: the late Cretaceous to the early Eocene stage of uprilfing-erosion and shear-extension caused by the oceanwards-eastwards withdrew of Pacific subduction zone and the delamination of proto-subducted slab after the stage of pre-Cretaceous pre-rifting active continentoceanic plate margin. In this stage, the Nansha transcrustal layering-block started to move southeastwards on the Nansha transcrustal layer-sliding plane, meanwhile, the Andu-Bisheng and Liyue-Banyue basement layering-block slid on their upper-crust layer-sliding planes, and Xibu accretion zone was formed. Successively, it entered the stage of the mid-Eocene to early Oligocene, when NW-SE sea-floor spreading occurred in the southwest subbasin owing to the slip-line field initiated by the collision between the Indian and Eurasian plates, Zengmu foreland-basin started to develop in the same time. And in the stage of late Oligocene to early Miocene, near NS simple-shear extension and sea-floor spreading in the central subbasin of eastern South China Sea resulted from the south-southeastwards drawing-force of the mantle-flow. The crustal layering-blocks and the Miri accretion zone formed also in this stage.

南沙岩石圈新生代微板块及板内层块构造的动力演化过程,在多元动力等因素(如块体之外的欧-太-印三大板块运动边界力和地幔深部活动因素、块体内部软弱层滑面以及地球自转变化)控制下,大致经历了4个阶段的演化:从前晚白垩世的裂前活动陆-洋板块边缘阶段因太平洋俯冲带向东跃迁、原向NNW俯冲消亡的板片的拆沉、幔隆而进入晚白垩世-早始新世的隆升剥蚀、剪切伸展演化阶段,南沙超壳层块顺超壳层滑面祥东南运移、安渡-毕生与礼乐-半月基底层块沿上壳层滑面拆离,西布增生带形成;继而先后在中始新世-早新世期间受印-欧板块碰撞滑线场、地球自转加速影响出现西南海盆NW-SE向海底扩张和曾母前陆盆地的发育,和晚新世-早中新世期间南—东南向地幔流牵引造成的中央次海盆近NS向单剪伸展与海底扩张、壳体层块向南差异滑移、米里增生带形成;中中新世以来,印度-澳洲板块快速向北俯冲,构成今日南海格局。

Suppose there exist a strictly increasing function Φ: 0,∞→

若存在严格增加函数Φ:[0,∞]→0,∞,Φ(0)=0,jx(下标 n+1-x∈Jx(下标 n+1-x使得〈T(上标 n-1)x(下标 n+1)-T(上标 n-1)x, jx(下标 n+1-x〉≤k‖x(下标 n+1)-x‖^2-Φ‖x(下标 n+1-x‖,n≥1,x是T的不动点,在对参数的一些限制条件下,本文证明了迭代序列{x}强收敛于非自映象T的不动点x,其目的是把对近伪压缩映象的迭代结果推广到近伪压缩非自映象上,从而推广了以前的结果。

Then, it studies the supply chain management system as a complex system to confirm the state existing during operating of the system. After that, it conducts a probability analysis on the state which the system located by applying supplement variable method, and establishes the model of distributed parameter system in a form of partial differential equations. Combining C0 ? semigroup theory in the functional analysis, it conducts a dynamic analysis on the established mathematical model. Using this method, it obtains the mathematical expression of the dynamic solution and the steady state solution, and proves the uniqueness, non-negativity and the asymptotic stability of the system solution. This dissertation applies the Matlab tool and uses two-step, three-step Simpson integral equation to imitate the condition of system solution. Then, it adds possible mode of failure and the optimization adjustment state to the system, based on which it has established the distributed parameter system model which is described by partial differential system of equations. Combining the functional analysis C0 ? semigroup theory, it studies the established mathematical model, and obtains the mathematical expression of the dynamic solution system and the steady state solution. It has proven the existing of uniqueness of the system solution, the asymptotic stability of system solution and the system solution. In addition, it has lying the theory rationale for further analysis and the research on the optimization of system.

本文首先简要综述了供应链理论、可靠性研究、鲁棒性研究以及供应链鲁棒性研究的现状;然后,将供应链系统作为一个复杂系统来分析,确定了系统运行过程中所经历的状态,通过引入补充变量的方法,建立了用偏微分方程组描述的分布参数系统模型,用泛函分析中的C_0 -半群理论得到了系统动态解和稳态解的数学表达式,证明了系统解存在的唯一性、非负性和指数阶近稳定性;并借助Matlab工具,利用二阶、三阶辛普森积分方程模拟系统解的性态,并给出系统动态解的仿真图;本文又对上述系统增加了系统可能失效状态和优化调整状态,并在此基础上建立了用偏微分方程组描述的分布参数系统模型,同样用泛函分析中的C_0 -半群理论对所建立的数学模型进行了研究,得到系统动态解和稳态解的数学表达式,证明了系统动态解存在的唯一性、非负性及近稳定性,为进一步分析和研究供应链优化奠定了理论基础。

This article chiefly introduces some results about vector measure and gives an asymptotic martingale which is L1 bounded amart,not-bounded.

主要介绍向量测度中的一些结论,并给出一个近鞅是L_1有界近鞅而不是有界的。

In 1993, Chinese artists show up collectively in La Biennale di Venezia. Marking the history is over, 80s' dream never come back.

93年中国艺术家集体亮相威尼斯双年展,标志着历史已然翻篇儿,80年代的梦想远。

The design of output feedback H(subscript ∞) controllers is discussed for nonlinear discrete singular systems. First of all, by means of generalized Lyapunov function and linear matrix inequalities, zero solution E-asymptotically stable is studied for the system, a sufficient condition is given such that the system is zero solution E-asymptotically stable and a H(subscript ∞) norm constraint. And the output feedback H(subscript ∞) controller is designed to guarantee the performance of the resulting closed-loop system.

主要对非线性离散广义系统的输出反馈H控制器的设计问题进行讨论,首先利用广义Lyapunov函数和线性矩阵不等式,对系统的零解E-近稳定性问题进行分析,在此条件基础上给出系统零解E-近稳定且具有H范数约束的充分条件,然后设计系统的输出反馈H控制器,使得闭环系统具有同样的性能。

Leaf blade leathery, apex shortly acuminate or acuminate, abaxially not drying purple, petiole to 7 mm.

叶片革质,先端短尖或尖,背面紫色的干燥,叶柄在7毫米的不 20 R。

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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐

The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.

血精的原因很,以良性病变为主。