粘性的
- 与 粘性的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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During the calculation the results got by quintic spline kernel was the best so it was chosen as the proper kernel for the SPH simulation. By comparison of the simulation results got by SPH and finite volume method, it was proved that the buffer cells method proposed in the SPH simulation to implement the Dirichlet boundary conditions was accurate, and this is of great importance for the simulation of flows pass a pipe. At last, the SPH method was improved to simulate the liquid-solid two phase flows and the results show that this method was appropriate for the simulation of flows containing viscous fluid and macroscopic solid components. Now the two methods are both able to predict the continuum flows and rarefied flows severally, but the hybrid program still has some aspects to be improved.
首先用标准算例验证了SPH方法的理论模型和计算程序的准确性;通过比较确定选用五次样条核作为计算低雷诺数下的粘性连续流动时的核函数;采用SPH方法和有限体积法分别对同一管道流动进行了对比计算,证明了本文提出的边界缓冲区方法在实现SPH方法中的流体边界条件时的有效性,解决了SPH方法模拟管道流动时的一个关键问题;巧妙地使用SPH方法对化工分离流动中常见的固液两相流及固液耦合作用进行了模拟尝试,获得了较好的结果;在跨尺度计算方面,目前两个子程序已经能够分别模拟连续的和稀薄的二维管流问题,二者的耦合计算程序还处于调试和优化阶段,各个参数对于计算精度和计算速度的影响规律仍在探索中。
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Finally, in the third section, by constructing some functional which similar to the conservation law of evolution equation and the technical estimates, we prove that in the inviscid limit the solution of generalized derivative Ginzburg—Landau equation converges to the solution of derivative nonlinear Schrodinger equation correspondently in one-dimension; The existence of global smooth solution for a class of generalized derivative Ginzburg—Landau equation are proved in two-dimension, in some special case, we prove that the solution of GGL equation converges to the weak solution of derivative nonlinear Schr〓dinger equation; In general case, by using some integral identities of solution for generalized Ginzburg—Landau equations with inhomogeneous boundary condition and the estimates for the L〓 norm on boundary of normal derivative and H〓 norm of solution, we prove the existence of global weak solution of the inhomogeneous boundary value problem for generalized Ginzburg—Landau equations.
第三部分:在一维情形,我们考虑了一类带导数项的Ginzburg—Landau方程,通过构造一些类似于发展方程守恒律的泛函及巧妙的积分估计,证明了当粘性系数趋于零时,Ginzburg—Landau方程的解逼近相应的带导数项的Schr〓dinger方程的解,并给出了最优收敛速度估计;在二维情形,我们证明了一类带导数项的广义Ginzburg—Landau方程整体光滑解的存在性,以及在某种特殊情形下,GL方程的解趋近于相应的带导数项的Schr〓dinger方程的弱解;在一般情形下,我们讨论了一类Ginzburg—Landau方程的非齐次边值问题,通过几个积分恒等式,同时估计解的H〓模及法向导数在边界上的模,证明了整体弱解的存在性。
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The results showed:among the 7 isolates, five isolates of HY3、GY1-3、ZJ1-1、HP1、FC3 had same colony shape, irregular shape, liquidlike, slimy, opacity with smooth surface;the other two isolates had same shape, irregular shape, dry, opacity with coarse surface. By inoculating eucalyptus with the 7 isolates, the plants were infected apparently, and the young plants of eucalyptus in control experiment with tap water were not infected. By cultivating eucalyptus cuttings with the bacterial suspensions without EPS, the incidence of disease was very distinct,but compared with the former bacteria suspension,the incidence of disease has decreased at different degrees. By screening out two isolates of strong pathogenicity and two isolates of weak pathogenicity from the 7 isolates,making the bacterial suspensions with them to inoculate the young plants of eucalyptus, two treatments of cutlings and ramets with rats were set with 5 repetitions in every treatment, the results of data analysis showed: for the cutlings, the bacterial contents in upper and middle parts、upper and lower had significant difference;for ramets with roots, the bacterial contents in upper, middle parts, lower had significant difference between each other; For both the cutlings and ramets with roof, the bacterial contents in xylem and phloem had significant difference. The interaction between vertical and horizontal parts for the bacterial content had significant difference. For the two isolates of HY3 and 93B which were screened out at last,their activities of the cellulase were: 1.955ug/ and 1.288ug/ respectively, and had significant difference; the activities of pectase were: 1.325 ug/and 1.24ug/ respectively, and had no significant difference. The content of EPS extracted from the two isolates of HY3 and 93B was very different: 7.08x10-8ug/cell and 5.17x10-8ug/cell.
结果显示:7个菌株中,其中5个菌株HY3、GY1-3、ZJ1-1、HP1、FC3的菌落形态相同:不规则形状、流体、粘性、不透明、表面光滑;另外2个菌株93B、GN1菌落形态相同:不规则形状、干燥、不透明、表面粗糙;用7个菌株接种剪根桉树苗,发病情况非常明显,而自来水对照实验中桉树苗却不发病;无EPS菌悬液培养桉树剪根苗,发病率也很明显,但是相比原菌液,则发病率有不同程度的下降;从7个菌株中间筛选出来2个强致病性菌株和2个弱致病性菌株,用它们配制菌悬液培养桉树苗,设置剪根和不剪根两个处理,每个处理设置五个重复,数据分析结果显示:对于剪根苗,上部和中部、上部和下部的含菌量有显著的差异,中部和下部含菌量差异不显著;带根苗,上部、中部、下部含菌量彼此之间差异显著;不管是剪根苗还是带根苗,木质部和韧皮部含菌量之间的差异都非常显著;上中下与木韧交互作用中,含菌量差异非常显著;最后筛选出来的强弱2个菌株HY3和93B,它们的纤维素酶活性分别为:1.955ug/和1.288ug/,具有显著的差别;果胶酶的活性分别为:1.325 ug/和1.24ug/,没有显著的差别,而且HY3和93B两个菌株细胞分泌的胞外多糖的含量差异很显著,分别为:7.08×10-8ug/cell和5.17×10-8ug/cell。
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Why Baidu Hi is such development pouring foreword main is helpless, because the development base of Baidu is a webpage,the search just is searched after obtaining position of a leadership, web2.0 times comes, the success that the network develops is technical advantage not just, capture an user or the user is agglutinant, become a crucial factor especially the arrival of rich passenger times, baidu is timely rolled out Baidu space with a view to to grow end theory, a series of products of Baidu, such as Baidu knows, Baidu is stuck, Baidu space is sealed undoubtedly, just follow the evolution that at the development trend of whole internet network passivity accepts changes of course, baidu knows, Baidu is stuck it is the successful act that duplicates hard undoubtedly what special need is worth to say is, of Baidu space roll out, baidu space justs to be rolled out, show individual character as main factor stresses development, so that locate Baidu space directly later,be the community that make friend, had been apparently be Baidu Hi roll out prepared
百度Hi为什么是这样倒序发展的呢主要的是无奈,因为百度的发展基础是网页搜索只是搜索达到一个领导地位后,web2.0时代到来,网络发展的成功不仅仅是技术的优势,抓住用户或者是用户粘性,成为一个至关重要的因素非凡是博客时代的到来,百度适时推出了百度空间着眼于长尾理论,百度的一系列产品,诸如、百度贴吧、百度空间无疑都是未知的,只是跟随于整个互联网络的发展趋势而被动采取的发展变革当然,、百度贴吧无疑都是难以复制的成功举措非凡需要值得一说的是,百度空间的推出,百度空间甫一推出,就把个性展示作为一个重要因素突出发展,以至于后来直接把百度空间定位为交友社区,已经很明显是为百度Hi的推出做预备了
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The following are main contents studied: A finite element method for Navier-Stokes equation with ALE formulation is considered and by combined with theNewmark method of numerical intergration a pressure correction scheme is obtained for the solution of the FE formulation of N-S equation. Because the incompressibility condition can be satisfied approximately in this scheme, the interpolation functions of elements can be equalorder for the velocity field and pressure field. In the ALE formulation the fluid-solid interaction analysis became a three-field coupling problem of the fluid field, the solid field and the fluid dynamic mesh. The properties and charactiristices of this three-field coupling problem are deeply discussed.
研究的主要内容有:主容器中流体大晃动是一种强非线性问题,文中研究了求解ALE描述的粘性流体N-S方程的有限元方法,以有利于大晃动自由液面的跟踪和流体大晃动中非线性现象的描述;并结合Newmark数值积分法推出了求解ALE型N-S方程的压力修正解法,由于这种解法可以近似满足不可压条件,因此可以采用速度场和压力场等阶插值的有限元离散格式,从而较好地解决了普遍采用的不等阶插值解法中,速度场和压力场数值精度不一致、程序编制不便等的不足。
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Through this topic, we discover with the 2%NaOH-NALC digesting fluid may in 10 minute in rapid decomposition sputamentum resisting medium, during guarantee digestion effect not because the NaOH strong function will have killed the bacterium (timing control in 20 minutes), also will not affect the magnetic pellet the function; Through the application self-restraint quota simulation clinical specimen, we have compared the acid-fast stain and the pyoktanin yellow O fluorescence dye pick out limit, the pyoktanin yellow O fluorescence dyes the dark background to after-crop the obvious green bright the bacillus tuberculosis to compare in the acid-fast stain white background the red bacillus tuberculosis to accommodate strikingly, the pyoktanin yellow O fluorescence dyes picks out limits between 0.05~0.001 Mai unit, is higher than the acid-fast stain 0.05 Mai unit, the former sensitivity is high; Moreover, concentrates the function after magnetic nano particles the specimen smear, under the mirror demonstrated that its bacillus tuberculosis quantity is higher than the specimen which obviously has not passed through concentrates.
通过本次课题,我们发现用2%NaOH-NALC消化液可在10分钟内迅速裂解痰液的粘性介质,在保证消化效果的同时不会由于NaOH过强的作用杀死细菌(时间控制在20分钟内),亦不会影响磁性颗粒的作用;通过应用自制定量模拟临床标本,我们比较了抗酸染色和金胺O荧光染色的检出限,金胺O荧光染色黑暗背景下发出明显绿色亮光的结核杆菌较抗酸染色白色背景中的红色结核杆菌更容醒目,金胺O荧光染色的检出限在0.05~0.001个麦氏单位之间,高于抗酸染色的0.05个麦氏单位,前者敏感度较高;另外,经过磁性纳米颗粒富集作用后的标本涂片,在镜下显示其结核杆菌数量明显高于未经过富集的标本。
- 推荐网络例句
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As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.
每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。
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Maybe they'll disappear into a pothole.
也许他们将在壶穴里消失
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But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.
但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。