查询词典 algebraic closure

We give several sufficient conditions of NA and NSD properties of random variables, compare the closeness of distribution functions of order statistics between NA and independent rv's, investigate properties of NSD defined by supermodular functions, study the dependence structure of stationary Markov process and order statistics and their spacings from two samples, establish stochastic comparisons of order statistics of heterogeneous rv's in the hazard rate and the reversed hazard rate orders, and give the first analytic proof of the closure property of the up shifted likelihood ratio order under convolution.

给出判定一组随机变量NA性质的几个充分条件，并给出NA和独立随机变量的次序统计量之间"贴近性"的比较，系统地研究基于特殊函数类所定义的NSD负相依概念，给出一些判别NSD性质的结构定理和一些有用概率不等式。系统研究平稳马氏过程的相依结构。研究两样本次序统计量及其问题隔的相依结构。在失效率、反向失效率序和似然序意义下给出非齐次随机变量次序统计量的比较。给出上漂移似然序卷积封闭性的第一个解析证明。

Crown Food Europe is to supply PeelSeam, its easy open closure for metal packaging, to Spain's largest retailer Mercadona for its anchovy product line.

皇冠欧洲食品供应PeelSeam ，它很容易打开封闭的金属包装，到西班牙最大的零售商Mercadona其鱼产品线。

Objective Neural tube defects are a common congenital malformation in humans, which have affected on the human quality and are the most severe desease of birth defects, which comprises a series of defects such as anencephalia, encephalocoele, myeloschisis and so on because of no and delay closure of the neuropore in the progress of developing embryo.

目的 神经管畸形(neural tube defects，NTD)是人类常见先天畸形，是影响人口素质的最常见、最严重的出生缺陷性疾病之一。

For the synthesis of NHC precursors, there are also several routes: condensation of glyoxal, amines and paraformaldehyde; alkylation of imidazole or monosubstituted imidazole with alkyl halide; annulation of ortho esters and 1,2-diamines; ring closure of hydrazines or amides with acetic anhydride; reduction of thiones with Na/K in THF.

关于N-杂环卡宾前体的合成途径主要有：乙二醛、伯胺和多聚甲醛的缩合反应；卤代烷与咪唑及其取代咪唑的烷基化反应；原甲酸酯与1，2-二胺的成环反应；肼或酰胺与酸酐的环化反应；用Na/K对环硫脲化合物的还原反应。

The conversion of the cyclobutanes to the corresponding annulation products was achieved by a reaction sequence of [elimination of HCl in the cyclobutanes-4 electron electrocyclic ring opening-6 electron electrocyclic ring closure-elimination of another HCl molecule] .

这些环丁烷产物向增环产物的转化是经一个[脱除－分子HCl得环丁烯－环丁烯电环开环为丁二烯－6电子电环闭环－脱除另一分子HCl]这一连续反应进行的。

Whether it is case or carton closure, poly, paper or plastic, it will provide the right tank, hoses and applicator.

无论是案件或纸盒封闭，聚，纸张或塑料，它将提供正确的坦克，软管和喷头。

Under UBM examination, appositional angle closure was found to be more common under dark room conditions than under light conditions.

浅前房患者，应用UBM检查，在暗室状态较明室状态下，房角更多发生相贴关闭。

Objective To assess the efficacy and safety of two kinds of arterial suture-mediated closure devices in patients after coronary arteriography and percutaneous coronary intervention.

目的 评价并比较Angioseal和Perclose两种血管闭合器在经皮冠状动脉造影及介入治疗中应用的有效性和安全性。

A stage of arteriosclerosis involving closure of blood vessels.

血管阻塞的一种动脉硬化。

Starclose (n=286): Starclose utilized a small flexible nitinol clip that gave circumferential extravascular closure of the femoral arteriotomy site after CAG or PCI.

Starclose闭合器组(n=286)：冠脉造影或介入术后直接利用一个环形可弯曲的小镍钛合金闭合夹从血管外对穿刺口周围进行闭合。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。