中板

With cross-shaped column as the representative of nonrectangnlar columns, one experimental program is conducted to study behavior of slab-column connection with nonrectangular column provided with shear reinforcement, the shear reinforcement include traditional stirrup and stud shear reinforcement .

2以十字形柱为代表，对配置抗冲切钢筋的异形柱－板柱连接的受冲切性能进行了试验研究，将其受冲切特性与文献中相应方柱－板柱连接试验进行了比较分析，研究了抗冲切钢筋对其受冲切特性的影响。

Then on the basis of study results about regional geology, ophiolite,structure,and seismic depth-sounding in the Qinghai-Tibet plateau and its adjacent areas, this paper promotes a new model to interpret tectonics.This new model thinks that in this large area there was not simple B-type subduction which is accompanied with ocean-floor spreading at mid-ocean ridges to form ocean basins appearing as new oceans and new ocean plates,but intercontinental seas due to ocean-floor spreading,obduction of ophiolite tectonic slice as oceanic crust slabs and complex A-type subduction of continental lithosphere slabs.

而后又以青藏高原及邻区为例，根据区域地质、蛇绿岩和地质构造研究的成果，特别是地震测深研究的成果，详细地论证了本区不存在有大洋中脊扩张成为大洋盆地的新大洋和大洋板块简单的B型俯冲模式，但存在有海底扩张的陆间海和海洋地壳板片的仰冲以及大陆岩石圈板片复杂的A型俯冲新模式。

New Zealand white rabbits (3-4 months old, 3-4 kg weight) were the test animals, and they were divided into three groups proceeding in this study. In group A:One PLLA screw and one commercial screw were implanted in the right tibia. Two PLLA screws were implanted in the left. Furthermore, one PLLA bar was implanted in both right and left tibia respectively with onlay model in group B. Also,one PLLA plate was implanted in the left tibia and one commercial plate in the right respectively with onlay model in group C . Many tests were done on each sample in 1, 4, 8 and 12 weeks which included the observation of tissue response in group A, and the change of three-points bending, weight loss, molecular weight, crystallinity and morphology of fracture surface by scanning electronic microscopyin group B, and the change of three-points bending, weight loss and molecular weight in group C.

所使用实验动物为24只3-4个月大，体重3-4公斤的纽西兰兔，并将所使用材料及动物分为A、B、C三组进行。A组中於实验兔之右胫骨植入两支骨钉，一支为自制骨钉，一支为MacroPore市售骨钉，并钻一孔但不植入骨钉做为控制组；另於实验兔之左胫骨植入两支自制骨钉，另标示一区不钻孔不植入骨钉做为控制组。B组采用onlay1 模式於实验兔之左右胫骨各植入一自制长型片。C组也采用onlay模式於实验兔之左胫骨植入一自制骨板，於右胫骨植入一市售骨板，各於不同时间点( 1， 4及12周)将A及C组，而於( 1，4，8及12周)将B组内的植入物取出进行各种测试，包括A组的组织切片观察及B组的三点弯曲变化、质量损失、分子量变化、结晶度变化及扫描式电子显微镜观察断面型态改变及C组的三点弯曲变化、质量损失、分子量变化。

METHODS: A total of 50 white rabbits were randomly divided into anterior cruciate ligament transection group, medial collateral ligament transection + meniscectomy group and normal control group. The specimens were harvested at weeks 1, 2, 3, 4, and 5 after operation. The osteocartilaginous section of the medial femur condyles were observed by gross observation, histological examination, and Markin scores. The contents of proteoglycan and collagen fiber were also measured.

取大耳白兔50只，随机分为3组前交叉韧带切除组、内侧副韧带+半月板切除组分别切除右后肢前交叉韧带、右后肢内侧副韧带和半月板，正常对照组不干预，分别在建模1，2，3，4和5周后分批于膝股骨内髁软骨取材，进行软骨组织大体和组织学观察、软骨损伤程度Markin评分；测定软骨组织蛋白多糖及软骨基质中胶原纤维含量。

The damage represents complex mechanism. In this research based on T300/HT3 laminate structure, fatigue life is predicted phenomenologically, dealing mainly with in-plane stresses without accounting for out-of-plane failures such as craze. Fatigue modulus, based on damage mechanics, is used as a physical parameter which helps to describe the basic fatigue behaviors of unidirectional laminates and obtain expressions for cumulative damages defined by strains and stress. Based on some typical fatigue test data for unidirectional composite laminates, residual modulus sequence is found out.

本文以T300/HT3复合材料层压结构为研究对象，从唯象的观点出发，以损伤力学为基础构造损伤函数，考虑了剩余刚度和应变比率对复合材料的疲劳性能的影响，以这些变化着的机械性能作为损伤变量，建立了复合材料的疲劳损伤模型，基于层压板拉—拉疲劳试验数据，拟合出损伤模型中的参数，从而得到层压板拉—拉疲劳损伤变化规律，并建立损伤变量与内部损伤及疲劳寿命的联系，从而预测常幅应力作用下疲劳寿命。

The conventional liquid based RP system used a special designed recoat to scrape resin from one side of the tank to the other to ensure the surface flatness. The scraping procedure will take off extra resin but with a drawback of shear force to the working part. In order to overcome the drawback of the shear force, a supporting structure is necessary to build under the working part.

目前商业化之液态快速原型系统中，大部分使用刮板铺层进行层厚控制的部份，铺层系统铺过工件表面时，微小结构容易受到刮板所产生的剪切力破坏，为了克服剪切力这个缺点，使能制作出具有外悬机构原型时，必须建立支撑结构。

It is shown that adiabatic shearing fracture is main reason of resulting in the plugging occurrence. The residual adiabatic shear bands in the destroying process, which distribute reticulately from the surface of penetrated hole to internal area, is very wide. It is easy to result in falling of fragments....

冲塞的发生以绝热剪切破坏为主，靶板中残留的剪切带比较宽大，由弹孔表面向靶板内延伸，呈网状分布，易造成碎块的脱落，另外，绝热剪切带的形成与塑性力学静载下滑移线的形成密切相关，其走向与滑移线的方向基本一致

The Lithostegia Ching was considered as a member of Peranemaceae for a long time, according to the research,we found that it has the typical scalariform perforation plates,no associated or crossed phenomena,and some region have intact plate,no dimorphic phenomena,no weblike or threadlike remnants,these suggest that The Lithostegia Ching is in a primal evolutional position.

与传统观点不同，我们认为穿孔板仅存在于端壁的管状分子为导管分子，而端壁和侧壁形态、结构相似，有或无穿孔板的管状分子为管胞，蕨类植物中的管状分子主要为管胞。

Objective. The proximity of the plate to the adjacent disc space appeared to be the critical determinant of adjacent level ossication development but we had no data on unplated arthrodesis.

目的：在邻近节段骨化的病例中，板的近端和邻近椎间盘的位置似乎是很重要的决定性因素，但是我们没有相应的未使用板的颈椎融合的资料。

In concurrent distillation, the upward flowing vapor atomizes liquid in a tray and carries it up to collectors in the tray above. There the liquid is separated and sent back down via a side downcomer.

并行蒸馏法过程中，在塔板内向上的气流将液体喷射成雾状并将其带到塔板上方的回收处，在那里液体被分离出来，经旁边的管子流到下面。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。