节

In traditional theory Egyptian king celebrated his first sed-festival normally in his thirtieth regnal year.

本文首先就埃及历史上与塞德节相关的诸年代学问题作一考察，主要涵盖了有明确纪年的塞德节记载，以及那些虽无纪年、但被用作年代研究证据的塞德节记载。

Through simulation of the real process of thomcolumbar burst fracture and use of modem dynamics techniques, the present study was (1) to investigate the kinetic relationship between structural damage and impact energy absorption and dynamics mechanism of thoracolumbar burst fracture by quantitative analysis of various injured segments;(2) to explore the instability mechanism of L1 vertebral burst fracture and its injury threshold by three-dimensional analysis of the injured segment with stereophotogrammetry in combination of transient physical parameters, anatomy and image;(3) to explore the corresponding relationships between impact energy, geometry parameters and biomechanics by geometry and biomechanical analysis of thoracolumbar burst fracture, which may provide an objective standard for evaluation of spinal injury severity and experimental evidence for adoption of biomechanical treatment in clinic;(4) to evaluate the fixation effect of different instruments and the effect of intervertebral bone graft on segment fixation by analysis of the threedimensional stability of different internal fixation instruments and their decompression of the spinal canal, which may provide experimental evidence for therapeutical selection for thoracolumbar burst fracture in future; and finally to investigate the effect of various instrument fixation on dynamical characteristics by comparison and quantitative analysis of frequency and amplitude responses, which may provide certain theories and experimental evidence for application of vibration test to judge the stability of the spine.

本研究从胸腰段脊柱爆裂骨折发生的实际过程出发，以现代动力学检测及计算机多通道高性能数据采集分析系统等高新技术为基础，实时量化分析损伤节段的工程参数，揭示了结构破坏与能量吸收的变化规律，探讨了胸腰段脊柱爆裂骨折的瞬态损伤机制；利用三维立体摄像技术，对不同损伤程度的节段进行三维运动分析，结合瞬态物理参数、影像学和病理解剖，明确了〓椎体爆裂骨折的失稳机制及损伤阈值；通过对胸腰椎爆裂骨折的几何学变化及生物力学分析，明确了撞击能量与几何参数、几何参数与生物力学的相应关系，为评判脊柱损伤程度提供了客观标准，为治疗中采取适宜的生物力学方法提供了实验依据；通过对比分析不同内固定器械的三维稳定性和对椎管的减压作用，评价不同器械的复位固定作用，同时比较椎体间植骨对节段固定作用的影响，为今后临床胸腰段脊柱爆裂骨折的治疗选择提供依据；利用振动测试与分析技术，比较及量化分析了不同致伤状况的频幅响应特征，比较分析了各种器械固定对动力学特性的影响，为今后临床建立基于振动测试与分析技术判断脊柱稳定性的诊断方法，提供了一定的理论和实验依据。

In this paper, material properties of the segment of the porous metal-bonded diamond grinding wheel were researched by finite element simulation. Segments were manufactured according to the design result and their elastic modulus was measured. The key points are as follows: The influence of the porosity on the elastic modulus was analyzed through a finite element method. In the FEM model, the design variable only includes the porosity, and the tetrakaidecahedron model is applied as the microstructure model of porous metal matrix. The corresponding porosity was decided in order to meet the requirement of the elastic modulus.

本文利用有限元软件对多孔金属结合剂金刚石砂轮节块的材料性能进行了数值模拟计算，依设计结果制备了节块试样，并测试了节块的弹性模量，主要内容有： 1、充分借鉴多孔材料结构设计和分析的方法，以十四面体模型为多孔金属胎体的微观结构模型，以孔隙率为设计变量，通过有限元分析，计算出满足一定弹性模量要求的多孔金属胎体的孔隙率范围。

Second thighs--Second or lower thigh as long as or only slightly longer than upper thight.

第二节大腿：第二节大腿或下半部分大腿的长度略大于第一节大腿。

Using the distortion-compensated roentgen analysis method, disc height, dorsoentral displacement, and lordosis were measured in 212 unfused segments from 62 patients, on digitized standing radiographs taken before fusion surgery and after a mean follow-up of 7.5 years (range, 4-11 years).

在标准数字化X光片上，比较术前和术后平均7.5年（4－11年）后62个病人212个未融合节段的椎间盘高度、椎体滑脱及脊柱前凸的情况，可变的影响因素如年齡、随访时间的长度、融合水平、融合节段数、融合节段上下方向和手术前后椎管的改变，用重复测量模型进行分析。

Methods Seven calf lumar spine specimens(T13~S2) were biomechanically tested under pure moment of 10Nm loading with Tenor pedicle screw system as the fixation device. Range of motion and intradiscal pressure were measured in all unfused segments and compared among the control group, the single-segment-fixed group (L4/5) and the double-segment-fixed group (L3~L5), and the correlation analysis was performed.

取7具小牛腰段脊柱标本(T13-S2)，以Tenor椎弓根螺钉系统作为固定器械，在10Nm纯力矩加载下进行生物力学测定，测定各活动节段的运动范围和间盘内压，比较完整对照组、L4／5单节段固定组和L3～L5双节段固定组间上述指标的变化，并进行相关分析。

Three animals randomly selected from three groups were killed on Day 0 to determine the baseline of PLA2 activity within unmanipulated rat sciatic nerve; other 39 animals underwent operation for model-making of acute sciatic （Maves-modified Bennet-Xie model） on right sciatic nerves, while Sham operations were performed on left sciatic nerves.

第0天，每组随机抽取1只共3只大鼠处死，测量双侧坐骨神经节段磷脂酶A2活性为基线，其余39只大鼠右侧坐骨神经制作急性坐骨神经痛模型（Maves改良的Bennet-Xie模型），对侧行Sham手术；第7天，每组随机抽取3只处死，测量治疗前模型和Sham坐骨神经节段的磷脂酶A2的活性；第14天，剩余大鼠处死后测量各组模型和Sham坐骨神经节段的磷脂酶A2的活性。

An essentialized and remarkably delimited Indian theatre consisting of just one genre, namely, the ancient Sanskrit theatre, with no space for the Ram Lila or other flourishing vernacular genres;(2) Histories from the nationalist period portray Indian theatre as primarily, though not exclusively, madeup of India's Western-influenced "modern" theatre genre but relegate the Ram Lila to the realm of unsophisticated folk theatre; and (3) Postcolonial-era histories offer a broad-based and plural Indian theatre encompassing all major genres, including the Ram Lila, but valorize postcolonial theatre withuntenable and extravagant claims.

我会在结论论证这些研究的源起，并列举三个现代印度文化和历史的不同阶段作为例证：（1）东方主义时期的印度剧场史，呈现出一个本质主义、明显画地自限的印度剧场，当中只有一个剧种：古老的梵文剧场，毫无肚量容纳罗魔节戏或其他盛极一时的地方戏剧；（2）国家主义时期的剧场史，此时最主要由深受西方文化影响的印度「现代」剧场构成，罗魔节戏被贬抑为难登大雅的地方小戏；（3）后殖民时期的剧场史，提供了一个宽广、多元，兼容并蓄的印度剧场，罗魔节戏也在其中，但此时期过於夸大了后殖民剧场的资产。

In the ganglion the labelled nerve fibers spreaded and fibers or terminals of various type were observed in the ventrodorsal or intermidiate part of celiac-superior mesenteric ganglion.

在节内腹侧部只见少量的标记纤维，节的中间部有大量互相交织成网状和树枝状集中分布的标记纤维，节的背侧部也只见有少量的标记纤维。

OBJECTIVE: To explore cervical adjacent zygapophyseal joint stress distribution following two level ADR and anterior cervical discectomy and fusion, so as to provide biomechanical reference for clinical application of two level ADR.

目的：观察轴向载荷对双节段颈椎人工椎间盘置换和前路椎间融合内固定对邻下位节段关节突关节内压力的影响，以期为双节段人工颈椎间盘置换的临床应用提供生物力学依据。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。