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In this article, on the basis of the characteristics of the moire contour fringes of Nycticebus coucany, Macaca assamensis M'clelland, Presbytis phayrei, Phinopithecus roxellanae, Hylobates concolor leucogenys, Gorilla gorilla. Anthropopithecus troglodytes. Simia satyrus and modern human beings we divide the Primates into two types. The two types of the new classification may be two groups of the evolution moving state.For comparison with each other, the angle γ between the approximately elliptical major axis of the moiré contour fringes on the medial condyle and the horizontal plane is taken as the criterion. We suggest that the Primates evolution to the state of erect walking is the process of the angle γ evolution approaching 90°, regarding the γ of the moire contour fringes of the medial condyle as the evolution angle on the knees of the Primates. 相似文献
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张人骧 《数学物理学报(B辑英文版)》1984,(2)
This paper introduces an in-vivo biomechanics experimental method and its principles n studying the motion of the human knee joint. From our experiments,we found that the human knee joint is not an usual moving pair. It is aspecial structnre. The orbit of the instant centers of movement gives also a space curve. So it may be called Bio-hinge. 相似文献
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张人骧;鹿鸣;张鸿姿;兰祖云 《力学与实践》1981,3(2):60-60
将生物力学的研究与人体检验相结合是一项值得重视的工作.利用 Moiré方法检验人体在文献[1,3]中曾进行过介绍.采用 Moiré法光学系统简单、操作容易、所用光源对人体无损害,它直接拍摄的照片可在病历中长期保存,是 ... 相似文献
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关节的运动形式与关节面的形状直接有关,因此,有必要对动物骨关节面尤其是膝关节面进行专门研究。 本文报道采用Moiré等高线对猩猩科动物进行研究,初步提出了根据Moiré等高线的形状将猩猩科动物股骨膝关节面分为三类,并根据现有资料,以股骨膝关节面的外髁Moiré等高线为标志。由于实验所得第Ⅱ级以后的Moiré等高线族基本上具备一定规律,故以外髁上第Ⅱ级近似椭圆形Moiré等高线长轴与水平轴夹角α的分布为研究对象,给出了初步的分布示意图。所得结果可供生物力学及灵长类研究中的参考。 相似文献
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<正> 一、前言为了防止轧件在运输和装卸时松散,对型材、线材、管材和带材都须要在精整工序进行成品捆扎.而目前此工序大多数仍然是手工操作,为了捆扎热盘条,须要在800°—900℃高温下进行工作,劳动条件恶劣、生产率低.它是精整工段机械化的关键.采用机械化操作不仅可以提高劳动生产率、改善劳动条件、而且还可以提高捆扎质量.为此,我们曾在 相似文献
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