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This study presents the investigating of microchannels flow. It is divided into two parts, the flow characteristics of micro venturi and the performance of straight-walled and curved-walled micro nozzle/diffuser respectively. The experimental results are also compared with the simulation results whereby we can observe the flow field in micro venturi and discuss the bounder effect of micro nozzle/diffuser.

本文主要是针对微喷嘴的空气流场进行研究与探讨，研究分为两部分进行，分别是探讨微文氏管的流力特性及曲面微喷嘴边界对流力效能的影响，并将实验结果与CFD软体的分析结果相互比较，藉以观察微文氏管内之流场分布并探讨微喷嘴较佳之流力性能。

The indirect signs were hematocele sphenoid, ethmoid hematoma, optic nerve thickening, teardrop sign. In the 19 cases(22eyes) of optic canal fracture, single-walled fractures 17 eyes(77.3%), multi-walled fractures 5 eyes(22.7%).

视神经管HRCT检查可清楚的显示视神经管骨折的部位及分型，进行准矢状位重建可提高骨折的检出率，可为临床诊断及选择治疗方案提供可靠的影像学依据。

At the same time, is also the stainless steel industry earlier through ISO9001 (2000) international quality system certification of enterprises, with advanced equipment, scientific management and operation of a very modern concept, products awarded as "China Famous" designation, and the Ministry of Construction in China Building Decoration Association of Architectural Ironmongery identified by the Commission as "project selected products", all products comply with CJ; T 151-2001 "thin-walled stainless steel pipes" GB12771 "fluid steel pipe welded stainless steel" GB; T 18705-2002 "decorative soldering Stainless Steel Pipe ", GB; T19228.2-2003" stainless steel compression-type pipe fittings to connect with thin-walled stainless steel tube "and other standards.

同时，也是不锈钢行业较早通过ISO9001（2000）国际质量体系认证的企业，凭着先进的设备、科学的管理和极具现代化的经营理念，产品荣获《中国名优产品》称号，并被建设部中国建筑装饰协会建筑五金委员会确认为"工程建设选用产品"，所有产品符合CJ；T 151—2001《薄壁不锈钢水管》 GB12771《流体输送用不锈钢焊接钢管》GB；T 18705-2002《装饰用焊接不锈钢管》、GB；T19228.2—2003《不锈钢卡压式管件连接用薄壁不锈钢管》等标准要求。

In Laplace space, the exact element stiffness matrix of the axial, torsional and bending vibrations of cone-shaped and symmetrical closed thin-walled bars are derived. By use of variation principle, the element stiffness matrix of the coupling vibrations of an asymmetrical closed thin-walled bar is also given.

在拉氏空间中导出了锥形杆件和对称闭口薄壁杆件的轴向、扭转和弯曲振动的精确单元刚度矩阵，应用变分原理也给出了非对称闭口薄壁杆件耦联振动的单元刚度矩阵。

The research mainly focuses upon the unique deformation mechanism, forming method, quality control and parameter optimization, and the key technologies in Finite Element Analysis for the 3D Non-Axisymmetric thin-walled tube spinning. A CNC spinning equipment for the 3D Non-Axisymmetric thin-walled tube has been designed and manufactured based on the experimental investigation of the forming method.

着重研究变形机理、成形方法、质量控制及优化成形工艺参数，解决三维非轴对称零件旋压成形过程数值模拟关键技术；通过对成形工艺方法的试验研究，研制出能够旋压成形三维非轴对称薄壁空心零件的工艺装备。

Based on the fundamental assumptions of thin-walled structure,bendingand torsion of monosymmetric I-section thin-walled curved beams with smalldeformation were studied in detail.

从薄壁构件的基本假设出发，对薄壁曲梁小变形时的弯曲与扭转进行了详尽的分析，首次得出了单轴对称工形截面曲梁的翘曲位移、正应力、剪应力、应力合力以及适用于各种荷载作用的控制方程的精确表达。

The second part of this paper presents a CFD-simulation of the performance of straight-walled and curved-walled micro nozzle/diffuser by FLUENT software. Such nozzle/diffusers are mainly used in micro venturi and also applied to valveless micropumps.

而在速度分布部分，当流量为5.338 mg/min时，宽度为150微米的喉部区流速已经高於声速，随后因速度不断增加，空气黏滞力影响了速度分布而产生了速度冲击现象。

The lungs of CDH fetuses were hypoplastic compared with normal controls and had thick walled septa with poorly developed saccules. In contrast, Dex and EGF fetuses showed improved mesenchymal differentiation with well-developed saccules and thin-walled septae, manifested by radial alveolar counts , mean terminal bronchiole density , ratio of pulmonary mesenchyma and that of pulmonary acinuses.

EGF组肺组织形态明显改善，表现在肺泡间隔变薄，肺泡面积所占比例明显增大，轴向腺泡计数较CDH组及Dex组均有明显增加，其平均终末支气管密度较CDH组改善明显，但仍少于正常对照组。

Xianfeng decades (in 1860), the amount of rebel army leader to make a (big Songpan Tibetan Women's Fall Edge), folding is he (the Tibetan plate tower Walled寨主letter), Oury wow (sheep dong Village headman 58) Chuan times, such as wood carvings, notice under the jurisdiction of the Walled toast 72 people out of Qing uprising.

咸丰十年（1860年），起义军首领额能作、折乃他、欧利哇等遍传木刻，通知七十二土司所辖各寨百姓起义进出清军。

In this paper, thick-walled cylinder radial, circumferential, axial analysis, to avoid damage to thick-walled plastic cylinder to provide a reliable reference value.

文中对厚壁圆筒的径向，环向，轴向的分析，可以避免厚壁圆筒塑性破坏提供可靠的参考价值。

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