多维

In this paper, arrangement scheme of a novel multi-star phase shifted pole changing coil was given and the methods to determine coil split ratio were analyzed. According to electromagnetic theory, 2D electromagnetic mathematical model in which stator windings were spitted coil was developed, and magnetic field distribution of the novel motor at starting was solved by finite element method, starting performance of motor was calculated. Based on energy method, rotor slot leakage reactance under different poles and different loads were calculated, and the variation of rotor slot leakage reactance with loads was gotten. Based on time-step finite element method, distribution of branch current in stator windings and operating performance were calculated and analyzed when branch was unbalance, the method to calculate circulating loss in stator windings of novel multi-star phase shifted pole changing motor was given, and the effects of the loads variation and degree of unequilibrium on circulating loss in stator windings were calculated and analyzed.

论文系统的给出了采用分裂线圈法新型多星形移相变极绕组的排列方案，进一步分析线圈分裂比的确定方法；根据电磁场理论，建立了定子为分裂线圈绕组的电机二维电磁场数学模型，并采用场路耦合法求解了新型多星形移相变极电机起动时的磁场分布，计算了电机起动性能和基于能量法计算了不同极数下起动时转子槽漏抗和不同负载时转子槽漏抗，得出转子槽漏抗随负载变化的规律；采用时步有限元法计算分析了定子绕组支路不平衡时支路电流的分布情况及运行性能，给出了新型多星形移相变极电机定子绕组环流损耗的计算方法，分析比较了负载的变化和支路不平衡度大小对定子绕组环流损耗的影响。

33 patients with AVD were studied by dynamic three-dimensional(3-D)reconstruction.18 men and 15 women 14－56 of age involved in this sutdy.Hewlett Packard 2500 echocardiography with 5.0/3.7 MHz multiplane transesophageal probe was used for data acquisition,and Tomtec echo scan system used for 3-D reconstruction.Acquired images were extracted and reconstructed by computer system.The condition of ATC and valve were viewed from atrioventricular lateral aspect.Results:The valvular replacement operations were performed on the patients suffered from thickened,calcified,thinned or broken tendinous cordae.

我们应用动态三维重建技术，研究了33例房室瓣病变患者的腱索，其中男性18例，女性15例，年龄14-56岁，全部病例经手术及/或心导管证实，图像采集使用HP SONOS 2500超声心动图仪(配有3.7/5.0MHz的多平面经食道探头)，三维重建采用TOMTEC ECHO SCAN系统，将采集的图像提取并重建，从房室的侧面观察房室瓣腱索及瓣膜情况。

The main contributions of this thesis are:(1) Seven mononuclear complexes of tetradentate ligand NTB have been obtained using N〓 or SCN〓 as the additional ligand;(2) Seventeen binuclear complexes of Fe , Zn , Co , Cu have been designed and the complexes of Co , Cu exhibit antiferromagnetic properties;(3) Changing the bridged-ligand such as PO〓, CO〓, o-phth, mai, Ag (CN 〓, Au 〓, etc , fourteen tetranuclear complexes of polypridine ligand have been synthesized;(4) Two antiferromagnetic 1D chain complexes of KH〓pdc ligand have been prepared from hydrothermal reactions; in addition, one ferromagnetic 1D chain copper complex of tpdp which is bridged by oxalate has been obtained.

本论文的主要贡献为：(1)合成了配体NTB的七个新型单核配合物；(2)合成了十七个铁、锌、钴及铜系列混桥双核配合物，其中双核钴和双核铜配合物为反铁磁偶合；(3)选用多吡啶配体tpdp和TPA，改变桥联配体，合成了十个四核配合物；(4)选择配体KH〓pdc，采用水热合成方法得到了反铁磁性一维链状锰、铜配合物；以草酸根为桥联配体，合成了配体tpdp的一维链状铜配合物，该化合物为铁磁偶合，文献较少报道。

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。

After the characteristics of elevation data in planning base map are analyzed,the article chooses polyface meshes to mimic 3D topograph model in which the interpolation algorithm ,weighs is used to adjacent distance, is adopted .

在分析规划底图中高程数据特点的基础上，选用AutoCAD的多面网格对象，采用近点按距离加权算法来进行插值运算，建立三维地形模型；通过纹理映射法在AutoCAD的渲染程序中加以实现，生成逼真的三维实景

It starred Colin Blakely, Dorothy Tutin, and Vivien Merchant, and was directed by Peter Hall.

主演柯林·布莱克利、多萝西·杜汀，和维维恩·莫姗特，由彼得·霍尔执导。

But though the view from Sun Weide's office was yielding little more than shades of grey, the spokesman for the Beijing Olympic organising committee was unworried about its implications for next year's games.

从孙维德的办公室向外望去，最多也就是看到层层灰色。孙维德是北京奥组委(Beijing Olympic organising committee)发言人，他并不担心这种情况对明年奥运会的影响。

Firstly an engine helical intake port 3D model is built by CATIA V5R14. Then the flow numerical simulation of the port is done with Ricardo's CFD software VECTIS. In addition, the port is tested on the steady flow test rig. The calculation result agrees with the test result well.

利用CATIA V5R14对某发动机螺旋进气道进行了三维造型，然后利用Ricardo三维流体软件VECTIS进行流体计算，并对该气道进行了稳流试验，计算结果与试验对比发现，平均流量系数与里卡多涡流比吻合较好，而且CFD可以获得大量试验无法获得的信息。

Evening calm ushers a fishing boat past a reef off Viti Levu, largest of 300-plus islands in this South Pacific success story .

平静的傍晚，一条渔船经过维提岛边的暗礁。维提岛位于著名的斐济大洋洲，是南太平洋300多个岛屿中最大的岛屿。

He saw this system as a continuation of the long tradition of Vitruvius, Leonardo da Vinci's "Vitruvian Man", the work of Leon Battista Alberti, and others who used the proportions of the human body to improve the appearance and function of architecture.

他视这一体系为自维特鲁威开始的历史传统的延续：莱昂纳多达芬奇的&维特鲁威人&、阿尔伯蒂的作品，以及应用这一人体比例改善建筑的外表和功能的其他建筑师。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新