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BACKGROUND: Some scholars have used finite element analysis to simulate spinal biodynamics. But there are few reports on finite element imitation of lumbar biodynamics system before and after artificial disc replacement.

背景:国内外已有学者将有限元分析用于脊柱的生物力学模拟,但对人工椎间盘置换前后腰椎生物力学系统的有限元模拟报道较少。

Result The therapeutic effects were similar between the biotype prosthetic and bone cement prosthetic, there was no significant difference.

结果 骨质疏松引起的股骨颈、粗隆间骨折病例采用髋关节置换术,生物型假体与骨水泥型假体的临床疗效相似,差异无统计学意义。

An emerald grass field replaced weather-beaten artificial turf, and the top four rows of seats were taken from the upper deck to replace six sections of lower-deck bleacher benches.

一个翠绿色的草皮球场置换了饱经风吹日晒的人工草皮,以及顶头四排座位被从较高的甲板取代以六个座位的低层露天长板凳。

In this paper, we discuss the method of error-correcting codes on the design of block ciphers.

本文对分组密码设计中的纠错码方法进行了系统地研究,在概括纠错码和分组密码基本知识的基础上,着力讨论了S盒和P置换设计中的纠错码原理与方法,得到了一些有价值的结果。

This procedure removes the abnormal antibodies from the plasma of the blood.

这种方法是从血液中将变异的血浆置换掉。

Their courses of disease,complication and contents of trace elements in blood serum were measured by relative tests.

合理的饮食控制可通过改善患者营养状况,提高血浆置换疗法对肝炎患者的疗效。

At first, the template is defined with Boolean vector space. The relationship between a template and an LC permutation is given.

首先,用布尔向量空间表示模板,并指出模板与LC置换的对应关系。

By simulation, it is found that both algorithms performed better than FIFO and LRU in terms of initial buffer delay, movie replicas number and dependency on the root with various peers' arrival interval.

同LSB(1east sent bytes)算法相比,某些场景中sD的启动延迟减少了约40%,而REP在副本数量方面远远超过LSB的结果,说明在P2P网络流媒体服务中使用SD和REP缓存置换算法有助于提高系统性能。

Seeral types of calcar replacement femoral components, as illustrated in Fig. 7-33 , are aailable for patients with loss of arying amounts of the proximal femur in lieu of the use of bone grafts.

如图7-33所示,几种带股骨距的股骨置换假体可用于股骨近端有不同程度骨缺损的病人,以替代骨移植。

However, the stress load alters in the proximal femur following THA, leading to "adaptable bone reconstruction", which is characterized by thin cortical bone, decreased bone density, and bone loss surrounding prosthesis, in particular calcar femorale.

但是全髋关节置换后股骨近端应力负荷会发生改变,导致股骨近端的所谓"适应性骨重建",其特点是皮质骨变薄,骨密度下降,引起股骨近端假体周围,尤其是股骨距区骨丢失。

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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。

Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。