查询词典 weak closure

Component-oriented face closure: closure of part of components, which allows the valve closure element cage, valve seat ring, valve cover, bottom flange or more of any two components where movement.

截流元件导向面：截流元件的一部分，它使得截流元件在阀笼、阀座环、阀盖、底法兰或以上任意两个零件里运动。

Huang and Lin proposed the weak solution concept for Backward Stochastic Differential Equation This paper based on the predecessor's work , gives the weak solution concept for Backward Stochastic Differential Equation with continuous martingale,uses the Girsanov transformation, obtains its weak solution of the existence of a necessary and sufficient conditions, and on this basis obtains its weak solution of the existence of sufficient conditions,these sufficient conditions weakened the drifting coefficient which requested in the existence uniqueness of strong solution to satisfy the Lipschitz condition the request.

本文在前人研究的基础上，给出由连续鞅驱动的倒向随机微分方程弱解的概念，利用Girsanov变换，得到其弱解存在的存在的一个充分必要条件，并在此基础上得到了其弱解存在的一些充分条件，这些充分条件减弱了在强解的存在唯一性中要求的漂移系数满足Lipschitz条件的要求。

Attention to high titer cold agglutinin in infants with blood grouping and cross-matching the impact of high titer cold agglutinin with blood of the same type of sub-Suozhi mostly weak agglutination, agglutination disappeared after by the water bath to prove consistency of cross-matching of blood, it should be added do direct antiglobulin test or polybrene with micro-column method with blood or blood serum can be excluded may contain other irregular antibodies; subtypes with the same type of blood (including the weak antigens and antibodies with a weak blood) when irregularities for weak agglutination, but the 37℃ water bath does not disappear after the condensation to prove that cross-matching of blood mismatched for the blood transfusion taboo.

重视高效价冷凝集素对婴幼儿血型鉴定和交叉配血的影响，高效价冷凝集素所至同型配血不合多为弱凝集，经水浴后凝集消失，证明交叉配血相合，但应加做直接抗人球蛋白试验或凝聚胺配血或微柱法配血，可以排除血清中可能含有其他不规则抗体；亚型同型配血(包括弱抗原与弱抗体配血)不合时也为弱凝集，但37℃水浴后凝集不消失，证明交叉配血不相合，为输血禁忌。

On the basis of the conclusion above, the nonlinear weak controllable vectors can be obtained, which compose the second class of weak controllable matrix, by means of matrix transfermations of the first class of weak controllable matrix. Furthmore the second criterion of weak controllability, accessibility and strong accessibility, which is more standard, more succinct and more practical, is obtained. On the basis of the first criterion and the second criterion, several important problems about nonlinear controllability are discussed, which include 1 local controllability; 2 three classes of local controllable decomposition, separately by means of local coordinate changes in the neighborhood of a nonsingular point, a point on a singular surface or a designated point x〓 with a designated input u〓; 3 the character of controllability of the ith state variable x〓 in different controllable areas and their boundaries.

在第一判别定理和第二判别定理的基础上，我们分析了非线性系统受控性质中的几个重要问题，所得到的结论包括i得到了非线性系统在可平衡点附近的能控性判别定理；ii分别给出了非线性系统在非奇异点、s阶奇面以及在状态空间内给定的一点x〓和输入u〓上的三种状态分解形式以及相应的求解方法；利用系统的Ⅰ型弱能控矩阵与Ⅱ型弱能控矩阵秩相等的条件，得到了只用系统的前n个弱能控向量来判断系统的弱能控性的判别定理；iii通过引入系统状态分量的三类受控区域边界的定义及相应的求解方法，初步探讨了非线性系统各个状态分量在不同的受控区域及其边界上的受控性质。

After discussion of the relation of MR〓 and ALT, an algorithm proposed by Zhongping Qin and Huanguo Zhang, two conclusions are obtained: if a weak key can be successfully attacked by the method of reduced echelon matrix, it can also be successfully attacked by a linear R〓R〓 transformation; meanwhile, there exists such a weak key that can be successfully attacked by the algorithm MR〓 or linear R〓R〓 transformation, but this key can not be successfully attacked by the algorithm ALT. For a NFA, according to the number of solutions for the image equation of its R〓R〓 transformation, there exist two sufficient criteria about its weak invertibility and weak inverse.

通过比较MR〓与覃中平和张焕国提出的攻击FAPKC加密情形的算法ALT，证明了如下结果：凡用约化梯阵方法能攻击成功，用线性R〓R〓变换也能攻击成功；同时，存在着用算法MR〓或线性R〓R〓变换攻击成功的弱密钥，用算法ALT攻击失败。

In this scheme weak voltage area are determined by the network sensitivity index method; Considering the relation between low voltage level and voltage collapse, it is put forward that the voltage magnitude variation rate is taken as the observed information for the grouping of weak voltage buses and weak voltage grouping are given; Taking geographic factors into consideration, a fuzzy maximal tree is established to group the weak voltage buses. The method to measure the incomplete observability of buses and the flow chart of PMU configuration are given.

应用网损灵敏度法来判断电压崩溃临界点和电压薄弱区域；考虑低电压水平与电压崩溃的关系，提出将电压幅值变化率作为电压薄弱母线分群所观察的信息，并且给出了电压薄弱分群指标，兼顾地域因素，采用模糊最大树聚类法将电压薄弱母线分群；给出了母线非完全可观测程度的度量方法以及 PMU 的配置流程。

Finally, the condition examining and schema decomposition algorithm are given.Fourthly, The definitions of elementary merge dependency set and minimum elementary merge dependency set are put forward. The weak leftside conflict and weak rightside conflict in the minimum elementary merge dependency set are defined. The conclusion that when the minimum elementary merge dependency set has weak left side conflicts or weak right side conflict is reached, The decomposition meeting PEK isα-cyclic is given. The algorithms of calculating the minimum elementary merge dependency set and examining the conflicts are given.

给出了条件的判定算法和数据库模式的分解算法。4、提出初等归并依赖集和初等最小归并依赖集的概念，定义初等最小规并依赖集的弱左部冲突和弱右部冲突，讨论了初等最小归并依赖集下的冲突问题，给出了在FD集F其初等最小归并依赖集D中存在弱左，右部冲突时模式分解为满足PEK为有α环的结论，并给出了初等最小归并依赖集的求解方法，冲突的判定算法。

Weak. Then the relations among rank-weak maps, independent set-reflected maps and closed set-reflected are studied. The isomorphism between matroids is characterized by these new maps, which shows that both weak map and rank-weak map are appropriate morphisms for matroids.

讨论了秩弱映射、反射独立集的映射以及反射闭集的映射之间的关系，利用这些映射给出了拟阵同构的等价刻画，说明了弱映射和秩弱映射也是合适的拟阵态射。

Therelationship between the turbulent kinetic energy and its dissipation rate,whichis widely used to parameterize the dissipation rate in turbulence closure models,is found to hold well for both reversing and rotating flows,but with differentcoefficients.Microstructure profiling measurements at two comparative stations (a deepercentral basin and a local shelf break) in the stratified Yellow Sea are analyzed,with emphasis on tidal and internal-wave induced turbulence near the bottomand in the pyenocline.The water column has a distinct three-layer thermohaline structure,consisting of weakly stratified surface and bottom boundary layers anda narrow sharp pycnocline.Turbulence in the surface layer is controlled by thediurnal cycle of buoyancy flux and wind forcing at the sea surface.while thebottom stress induced by barotropic tidal eurrents dominates turbulence in thebottom boundary layer.The maximum level at which the tidally enhanced mixingcan affect generally depends on the magnitude of the tidal current,and it canbe up to 10-15 m in the Yellow Sea.This suggests that,in the deeper regionsof the shelf seas,turbulent dissipation and mixing are very weak at the levelsbetween the near-bottom tidally enhanced layer and the pycnocline.Therefore,these levels provide a significant bottle neck for the vertical exchanges.In theshallow regions,however,the tidally-induced turbulence can occupy the wholewater colum below the pycnocline.A quarter-diurnal periodicities of the turbulentdissipation rate and eddy diffusivity are found at different heights with evidenttime lag.In the relatively flat central basin,the pycnocline is essentially non-turbulent and internal-wave activity is very weak.Therefore,vertical fluxes acrossthe pycnocline decreased to molecular levels.In contrast,internal waves of variousperiods can be always found near the local shelf break.

对强层化季节黄海两对比性站位(分别位于中央海盆区与局地陆坡区)处层化、内波以及湍流混合特征的研究结果表明：1、强层化季节的陆架海水体一般呈现显著的三层热盐结构，在水体近乎混合均匀的上混合层与潮流底边界层之间为强跃层；2、近表层水体的湍流混合强度主要由海表浮力通量的日变化与海表风强迫控制，而在潮流底边界层内，潮混合是水体热量、物质、动量与能量垂直交换的主要机制；3、潮混合影响的深度由潮流大小决定，在黄海，一般可达10-15 m，因此，在水深较深的区域，在跃层与潮混合所至深度范围的上界之间存在湍流混合非常弱的区域，这显著抑制水体内物质的垂直通量，为物质垂直交换的瓶颈，而在水深较浅的区域，潮混合影响范围可至跃层底部，因此物质在跃层以下整个水体中混合非常均匀，当跃层内间歇性强混合发生时，可以产生显著的跨跃层物质输运；4、近底潮致强湍流耗散缓慢地向上传播，底上不同深度处垂直湍扩散系数也具有显著的位相差异，且二者均随时间呈现四分之一周日周期的变化；5、在地形较为平坦的中央海盆区，内波活动非常微弱，因此跃层内湍流混合非常弱，垂直扩散系数为分子扩散水平，跨跃层物质通量受到显著抑制，而在地形变化较为显著的局地陆坡区，内波活动非常活跃，除内潮的影响外，高频内波与内孤立波的影响也很显著，因此跃层内存在很强的间歇性强混合，内孤立波存在的区域，水体湍流混合显著增强。

Experiments of flow conductivity closure stress of typical propping agent are done, propping agent short-term flow conductivity alteration index is defined, by this, the relation between fissure short-term flow conductivity and closure stress, it is close to exponential relation. 4. Establishing the mathematical simulator of hydraulic fractured well's production in a steady state, finding the relation curve between dimensionless flow conductivity and fracture penetration coefficient by means of calculation and analyses, it is the basis of hydraulic fracture. 5. Expatiating the importance of optimized hydraulic fracturing design in reservoir engineering, advancing the optimizing design method, fracture dimension can be calculated easily when the physical parameters are known. 6. Production rate decline standard curve of vertical fractured wells is achieved by mathematical simulation, when the flow pressure is certain , by asymptotic analyze, this decline curve is close to exponential relation.

完成了国内外典型支撑剂的导流能力闭合应力影响实验，在数据分析中定义了支撑剂短期导流能力变异系数，并由此发现裂缝短期导流能力随闭合应力变化的近似符合指数关系式； 4 建立了一种水力压裂井稳态产能的数学模拟器，计算分析找到了最优无量纲导流能力与裂缝穿透比之间的新型关系曲线，它是水力压裂优化设计的基础； 5 阐述了水力压裂油藏工程优化设计的重要性，提出了优化设计方法，在已知支撑剂物性参数条件下可简洁计算最优裂缝尺寸； 6 数学模拟给出了垂直裂缝井产量递减标准曲线，在井底定压条件下通过渐近分析表明，该递减曲线满足指数关系式。

"Please accept this talisman as a token of our thanks."

请收下这个护身符以表达我们的感谢。

If I have that magic, I will be more acceptable in the society.

如果我拥有那种魔法，我将更加被这个社会所容纳。