A Clinical Study of Trauma of Facet Joint in Compression Fracture of Vertebra

1、

Objective To analyze the stress distribution of calcaneus with posterior articular facet compressed after fracture and talus during gait.

目的对后关节面压缩的跟骨与距骨在步态过程中的应力变化进行生物力学分析。

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2、

Methods Part of elements under the posterior articulation were removed from a normal finite element model of calcaneus and talus to simulate malformation of compression of the posterior facet after fracture of calcaneus.

方法在跟骨有限元模型上切割部分后关节面，模拟跟骨骨折后的后关节面压缩畸形。

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3、

Facet joint fracture occurred in three specimens of contrast group, and fracture did through the screw holes and at the edge of damaged joint in five of plate group.

对照组3例小关节突骨折，钢板组5例螺钉孔与关节破坏边缘处发生骨折。

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4、

According to Marsh ankle-joint articular facet fracture reduction criteria, it showed that 8 cases excellent and 4 cases good.

按Marsh踝关节关节面骨折复位评分法，优良者8例，中等4例。

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5、

In 3-D surface profilometry by means of high-speed laser sheet, since the increase of distance between two optical cross-sections, the discontinuity on the object surface will lead to an erroneous triangular facet and distorted surface reconstruction.

在高速光截法三维面形测量中，由于光截面之间距离增加，物体表面的不连续性将容易导致错误的三角网格化，引起面形重建的畸变。

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6、

In this paper, an algorithm for generating the mini-volume encasing box, based on three-dimension polyhedral model of mechanical part ( triangular facet), is investigated and hence put forward.

本文基于机械零件的三维多面体模型（三角面片），研究并提出了它的最小体积的包围盒生成算法。

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7、

The oriented RP 3d-reconstruction method has been studied in the paper, with the focus on the bone CT image processing method and surface reconstruction with triangular facet.

本文研究了面向RP的骨骼三维重构方法，重点研究了其中的CT图象处理算法和三角片表面重构算法。

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8、

Through comparing the simplified results of edge collapse algorithm with triangular facet delete algorithm, select the edge collapse algorithm to simplify some complicated three-dimensional models.

通过对比边折叠算法和三角形面删除算法对车体模型的简化效果，选择边折叠算法完成其他复杂三维模型的简化。

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9、

Adaptive Triangular Facet Model for 3-Axis NC Milling Simulation

自适应三角片离散法实现三轴数控加工仿真

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10、

Simplification of Triangular Facet Model with ROAM Algorithm for NC Verification

用ROAM精简三角片离散法实现铣削仿真

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11、

By way of describing the mathematical model and analyzing the transient phenomena of active impact load in power systems, its real-time control methods are discussed.

本文从电力系统有功冲击负荷的数学模型和暂态过程着手，分析和探讨了有功冲击负荷实时控制的基本原理和方法。

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12、

Transient Phenomena in Electrolytic Processes

电解过程的瞬态现象

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13、

This paper studied the chaotic transient phenomena of a controlled electromechanical system with a time delay in the feedback path.

研究了一种具有时滞反馈的磁悬浮轴承系统的暂态混沌现象。

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14、

Transient Phenomena of Puffing Gas in a Tokamak Device(ⅰ) Monte& Carlo Method

托卡马克装置的脉冲充气问题（Ⅰ）蒙特卡罗方法

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15、

This paper introduces an automatic testing system for motor starting transient phenomena of torque.

本文介绍一种电机起动加速转矩的自动测试系统。

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16、

The results of calculation show the method presented here is quite valuable to the scientific research for transient phenomena.

计算实例表明，本文所提供的方法对于瞬变现象的研究有很大的实用价值。

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17、

Jump Phenomena in the 500 hPa Signal Field and the Occurrence of China's Heavy Rainfalls Based on the previous paper entitled" A Study of the 500 hPa Signal Field about Heavy rainfall in China", the statistics is found in the 500 hPa signal field.

作者在500hPa高度信号场与我国暴雨发生的规律研究基础上，进一步寻找高度信号场能显示与暴雨的突变现象有关的异常信号出现的地区和描述指标。

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18、

The results show: there are the quasi-periodic features and unsuccessive jump phenomena in the interannual variation processes of Northern Hemisphere monthly mean general circulation anomalies.

结果表明：北半球月平均环流异常年际演变的过程具有准周期特征及不连续的跃变现象。

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19、

The climatic variation tendencies and jump phenomena of air temperature, precipitation, evaporation and etc around Qinghai Lake since 1976 are analyzed and verified.

对环青海湖地区1976年以来的气温、降水、蒸发等气候要素的气候变化趋势及突变现象进行了分析和检验。

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20、

The Influence of Exacted Force Nonlinearity about the Jump Phenomena in Moving-coil Loudspeakers

强迫力非线性对动圈扬声器跳变现象的影响

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