置换的

Objective To evaluate the influence of patellar resurfacing on total knee arthroplasty.

目的 评价髌骨置换与否对全膝关节表面置换的影响。

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。

The generalized Walsh spectral characteristics and the generalized auto-correlation function characteristics of orthormophic permutations are studied by using of knowledge about the relation between orthomorphic permutations and vector Boolean functions.

运用向量布尔函数的知识研究了正形置换的广义一阶Walsh谱特征和广义自相关函数的特征，通过正形置换的广义一阶Walsh谱特征给出了正形置换的几种构造方法。

A retrospective study design was conducted by using chart reviews to choose patients who received unilateral primary total hip and knee replacement (International Classification of Diseases, Ninth Revision, Clinical Modification procedure code of 81.51 and 81.54) in two medical centers between 2001 and 2004. Patients were excluded from the study if they had had a bilateral in the same admission, fractures, previous arthroplasty surgery complication, bone cancer, pathological fractures, infection and hemophiliac.

采回溯性病历审查方式，选择台湾地区两家医学中心施行全人工髋及膝关节置换术的全部医师作为研究医师，以ICD-9-CM中之主手术码为81.51及81.54，排除符合同次住院施行双侧、骨折、先前手术的并发症、骨癌、病理性骨折、感染、血友病条件后，分别为716名及1，498名接受初次全人工髋及膝关节置换的病患。

The indication for proximal femoral replacement was a periprosthetic fracture in twenty patients, reimplantation because of a deep infection in thirteen, a failed arthroplasty in thirteen, nonunion of an intertrochanteric fracture in one, and radiation-induced osteonecrosis with a subtrochanteric fracture in one. Three patients died before the minimum two-year follow-up interval had elapsed, and two additional patients were lost to follow-up.

进行股骨近端置换的适应证是假体周围骨折28例，由于深部感染而进行再次手术13例，关节置换术失败13例，股骨粗隆间骨折不愈合1例，放射线诱导的骨坏死并伴有股骨粗隆下骨折1例。3例患者在达到最短两年随访之前就去世了，另外还有两例患者失访。

The indication for proximal femoral replacement was a periprosthetic fracture in twenty patients, reimplantation because of a deep infection in thirteen, a failed arthroplasty in thirteen, nonunion of an intertrochanteric fracture in one, and radiation-induced osteonecrosis with a subtrochanteric fracture in one. Three patients died before the minimum two-year follow-up interal had elapsed, and two additional patients were lost to follow-up.

进行股骨近端置换的适应证是假体周围骨折28例，由于深部感染而进行再次手术13例，关节置换术失败13例，股骨粗隆间骨折不愈合1例，放射线诱导的骨坏死并伴有股骨粗隆下骨折1例。3例患者在达到最短两年随访之前就去世了，另外还有两例患者失访。

Moreover, an improved upper bound on the average MAP decoding error probability of linear Slepian-Wolf systems for stationary memoryless sources is derived. Based on this improved bound, we analyze the performance of Slepian-Wolf systems based on LDPC codes and random permutations, and prove that under some conditions, all but diminishingly small proportion of LDPC encoders and permutations are good enough for the design of practical Slepian-Wolf systems when the coding length is very large.

然后，论文在相关平稳无记忆信源下推导出线性Slepian-Wolf系统平均MAP译码错误概率的一个改进上界，并在这一改进上界的基础上，分析了基于LDPC码和随机置换的Slepian-Wolf系统的性能，证明了在一定的条件下，当编码长度非常大时，几乎所有的LDPC编码器和置换对于实际Slepian-Wolf系统的设计都是足够好的。

The main objective of the dissertation was to improve and modify the experimental procedures of mouse nuclear transfer and pronuclear transplantation, respectively, and try to establish new possible methods for mouse cloning and pronuclear transplantation.

本论文的主要目的是改进和修改小鼠核移植和原核置换的实验程序，试图建立新的小鼠核移植和原核置换的可行方法。

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。

Then we put more efforts on some expressions, enumerations and constructions of orthomorphic permutations, an...

最后着重研究了正形置换的表示、构造、计数以及如何将线性正形置换非线性化等问题。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。