两维的
- 与 两维的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The percutaneous balloon mitral valvuloplasty was performed in the patient with single thickened tendinous cordae.The valvular closed commissurotomy was performed in the patient with thickened non-calcified tendinous cordae.The ATC stereoscopic images that revealed by dynamic 3-D reconstruction technique could be not acquired in two-dimensional image technique.
结果:本组瓣膜病患者,有两组腱索增粗并钙化者及腱索稀疏与断裂者均行瓣膜置换术,仅单组腱索增粗者行瓣膜球囊扩张术,两组腱索增粗而无钙化者行瓣膜闭式分离术,动态三维重建技术展示了二维显像所不能获得的房室瓣腱索的立体图像。
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Stockell kept a diary. He recorded that he came in below Vierville, that the skipper of the LCI feared the underwater beach obstacles mines and thus forced him to off in chest-deep water, that he saw equipment littering the beach, and then "The first dead American I see are two GIs, one with both feet blown off, arms wrapped about each other in a comradely death embrace."
斯托克保留着一本日记,日记记录了,当来至维尔维村下方时,LCI舵手担心水下滩头障碍雷,强令他离船,下到齐胸深水里,斯托克看到滩头零乱丢弃的装备,以及"我见到的第一批阵亡美军——两个大兵;样子是两脚肿胀,双臂亲密环抱对方的死亡拥抱。"
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In 1995, however, Sarkozy backed then Prime Minister Edouard Balladur for president instead of Chirac and attacked his mentor, leading Chirac to refuse to speak to Sarkozy for over three years. The French media picked up on the storyof the relationship between Chirac and Sarkozy, describing Sarkozy as an "unfilial son" and current Prime Minister Dominique de Villepin as a "foster son."
此后,法国媒体就常常拿萨-席二人的关系大作文章,将他们两人比拟成「逆子弑父」,而另一位即现任总理德维潘则是「义子」,去年四、五月甚至传闻出席哈克与德维潘两人欲联手从中作假要将台湾购买拉法叶舰的贪渎丑闻也让萨科奇列名收贿名单上,引发法国社会一阵轩然大波。
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Secondly, the performance simulation and analysis of these methods such as linear interpolation polynomial interpolation,Spline-cubic interpolation and an improved dicision-directed are performed.
首先分析了基于维纳滤波理论的二维维纳滤波估计和两个级联的一维滤波器的信道估计方法。
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In Chapter 2,I consider a queuing system in which there are two exponential servers, each having his own queue, and arriving customers will join the two queues separately, and analyze the two-dimensional Markov process representing the numbers of jobs in the two stations. A functional equation for the generating function of the stationary distribution of this two-dimensional process is derived and solved through the theory of Riemann-Hilbert boundary value problems. In Chapter 3, I consider the system with two parallel queues, in which arrivals join the shorter queue.I describe the problem of coupling and show that the generating function Fcan be continued as a meromorphic function to the whole complex plane.
全文包括三大部分:第一章介绍了基本的背景、研究进展和文章主要采用的方法;第二章研究的是有两个服务员共享的简单的排队方式的模型,即每个服务员有各自的队列,两队队长互不相关,分析了代表两个队长的二维马尔柯夫过程,推导出了二维过程的平稳分布的母函数的方程,并运用Riemann—Hilbert边值问题理论解出了母函数的表达式;第三章研究的是JSQ-PS模型(the joining the shortest queue model with processor sharing),模型是组合了加入最短队模型和处理器共享模型而成的有用排队模型。
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In this paper, the 3-D finite element relocating mesh method is used to calculate the temperature field and the thermal creep stress field of spillway dam and mid level outlet dam in certain roller compacted concrete gravity dam, sensitivity analysis have been down with different parameters, such as placing temperature, the location of cooling pipe, cooling temperature, time for water supply, ascended-layer of concrete, intermissive time and different placing time, and the commendatory construction scheme have been put forward in such analysis; according by the test result on the two scheme of concrete aggregate combination (basalt as coarse aggregate and limestone as fine aggregate, basalt as coarse aggregate and basalt as fine aggregate), simulation analysis on temperature field and thermal creep stress field of the commendatory construction scheme have been down, and analysis have also been down on temperature field and thermal stress field of the two different aggregate combination, the result indicates that the spillway dam and mid level outlet dam which adopted these two aggregate combination can both satisfy the require of design crack resistance in concrete, furthermore limestone as fine is better than basalt as fine aggregate; the effect of summer water storage and winter water storage on the temperature field and thermal stress field have been analyzed, comparing with winter water storage, in summer water storage scheme the maximum tensile stress at abnormal concrete in upstream fill is decreased by 0.1~0.3MPa and there are no evidence change of the maximum tensile stress at other parts, which indicate that summer water storage is avail for the crack resistance of upstream fill; according to the simulation calculating result and comparing temperature simulation calculating results and temperature controlling measures of some similarity projects both completed and construction, synthesis appraise have been carried to the design temperature controlling measures of dam, and the temperature controlling measures of this project have been brought forward, all these have great reference value on the design of temperature controlling measures and the optimization of the construction scheme.
本文采用三维有限元浮动网格法仿真计算程序,对某碾压混凝土重力坝的溢流坝段和中孔坝段分别进行了三维有限元温度场和温度徐变应力仿真计算分析,对浇筑温度、冷却水管的布置方式、冷却水温、通水时间、浇筑升程和间歇时间、不同开始浇筑日期等参数进行了敏感性分析,在此基础上提出了推荐的施工方案;根据两种骨料方案(玄武岩粗骨料+灰岩细骨料方案;玄武岩粗骨料+玄武岩细骨料方案)的混凝土性能试验研究成果,对推荐的施工方案进行了温度场和温度徐变应力仿真计算,并对比分析了两种不同骨料情况下的温度场和温度应力,结果表明溢流坝段及中孔坝段采用上述两种骨料均能满足混凝土的抗裂设计要求,且灰岩细骨料优于玄武岩细骨料;计算分析了夏季蓄水和冬季蓄水对坝体温度场和温度应力的影响,夏季蓄水方案与冬季蓄水方案相比,坝体上游变态混凝土区域最大拉应力小0.1~0.3MPa,其他部位最大拉应力无明显变化,夏季蓄水对坝体上游面混凝土的抗裂有利;根据仿真计算成果并通过比较国内一些已建和在建的类似工程的温度仿真计算成果及采取的温控措施,对大坝的设计温控措施进行了综合评价,并提出了该工程的温控措施,对温控设计和优化施工方案具有重要参考价值。
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Several novel structures have been determined: Unique ninenuclear complexesincorporating 3d, 4f metals with a sodium ion center, the sodium ion may be serve as atemplate in the formation of these novel complexes; Novel tetranuclear 〓complexes with channels formed by intermolecular weak interactions; First 〓type tetranuclear complex; Peculiar "dimer of dimers" complexes derived frombinuclear complex; Unusual one-dimensional wave chain formed by weakcoordination bonds and hydrogen bonds and two dimensional coordination polymerconstructed through coordination bonds and hydrogen bonds.
1获得了多个文献首报和罕见的特殊结构的配合物:两个同时含有碱金属-过渡-稀土金属的独特的九核配合物;两个具有孔道的稀土-过渡金属异四核配合物;草酰胺类〓四核配合物;两个由双核配合物通过叠氮和单个氯原子连成的四核配合物,尤其是以单个氯桥相连的化合物非常少见;一个由弱配键和氢键连成的具有一维波浪形结构的配合物;一个通过配位键和氢键连成的二维配位聚合物。
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Results: in contrast with model group, SSM can (1) increase the survival rate of ARF in rats, cut down Scr and BUN at 24hr, improve renal function, slightly surpass Vp in its therapeutic effect;(2) mitigate the extent of renal pathologicchanges, decrease the numbers of renal tubule necroses and casts;(3) protect renal ultrastructure such as microvilli, mitochondria, endoplasmic reticulum of TEC, podocytic process of glomerulus epithelial cell,endothelial cell etc, better than Vp;(4) enhance SOD activity, lower MDA contents in renal cortex;(5) enhance NO contents in serum, reduce ET levels in plasma;(6) evidently cut down TNF- a contents in serum, superior to Vp;(7) antagonize calcium overload in TEC;(8) alleviate renal pathological changes in ARF metaphase (at 3d), advance regeneration and recovery of TEC, restore renal structure in ARF convalescence (at 5d), and better than Vp;(9) increase the expression of TEC PCNA and prepro EGFmRNA in ARF metaphase.
结果:与模型组相比,SSM能(1)提高ARF大鼠的存活率,降低24hr时Scr及BUN,改善肾功能,其疗效略优于维拉帕米;(2)减轻ARF肾脏病变程度,减少24hr肾小管坏死数及管腔内管型数;(3)对肾脏的超微结构如肾小管上皮细胞微绒毛、线粒体、内质网、肾小球上皮细胞足突、内皮细胞等形态结构均有一定的保护作用,其疗效略优于维拉帕米;(4)提高肾皮质SOD活性,降低MDA含量;(5)提高血清NO水平,同时降低血浆ET含量;(6)显著降低血清TNF-α的水平,疗效明显优于维拉帕米;(7)拮抗小管上皮细胞[Ca~(2+)]_i的升高;(8)使ARF中期(第3d时)肾组织病变较同期其它两组明显减轻,并使肾小管细胞再生修复提前,至ARF恢复期(第5d时)肾组织结构恢复重建良好;作用明显优于维拉帕米;(9)促进ARF中期肾小管上皮细胞PCNA的表达及EGF前体mRNA的合成,从而增加EGF的合成释放,而维拉帕米无此作用。
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Using BOT generation algorithm,the block model was redivided with octree as general shape description and TEN as partial precise description,in which different gradation of grey were used to stand for different attributes of unit blocks.
如何高效地组织管理三维空间数据,构建三维实体模型已成为三维G IS成功应用的关键。目前在三维G IS中,可以将三维数据模型分为两类,即基于面表示的数据模型和基于体表示的数据模型。
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Compared with the two dimension FD, the methos are fast and simple,the experiment result shows it is feasible to classify manmade targets and natural objects by the FD of the rough profile of contour.
实验表明,水杯及车辆轮廓的分形维数较低,岩石则具有较高的分形维数,通过同二维结果的对比,从计算量和分形维数两方面证明用所提出的算法计算轮廓分形维数区别人工目标和自然物体是可行的。
- 推荐网络例句
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She gently rebuff ed him, but agreed that they could be friends
她婉言拒绝了,但同意作为朋友相处。
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If in the penal farm, you were sure to be criticized.
要是在劳改农场,你等着挨绳子吧!
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Several theories about reigniting and extinguishing of the arc have been refered.
本文综合考虑了几种电弧重燃和熄灭理论。