伸缩运动

肌腱在传递肌肉发出的伸缩运动，带动骨骼运动这一过程中起到了不可或缺的作用。

The tendon acts a key role in transfer the flex movement from muscle and in driving the bones .

但这种伸缩运动需要大量能量。

But this concertina movement requires a lot of energy .

蛇形机器人伸缩运动仿生研究

Bionic research on concertina motion of a snake-like robot

根据蛇的伸缩运动机理，设计了蛇形机器人的仿生机械结构。

The homologous bionic physical structure is designed in accordance with snakes ' concertina motion principle .

每次脉冲放电，工具电极都在压电致动器的驱动下作伸缩运动，从而实现微进给。

Tool electrode driven by piezoelectric actuator makes concertina movement each pulse discharge , achieving micro-feeding .

最后根据数学模型，对蛇形机器人进行了伸缩运动试验，验证了这两种运动步态的可实现性。

Finally , according to mathematical models , experiment on the snake-like robot verified the validity of these two gaits .

科学家们在洋葱皮的底部和顶部施以不同电压的电流，便观察到洋葱皮如同真肌肉那样做伸缩运动了。

By applying the electricity at different voltages at the bottom and top , the onion skin moved like a real muscle .

详尽分析了水平面内和垂直面内伸缩运动的运动机理、运动特点和它们所能适应的特殊环境。

The principle , characteristics and the unique environments of both horizontal concertina motion and vertical concertina motion had been discussed in detail subsequently .

通过运动分析给出了实现径向直线伸缩运动的必要条件，进行了净化机器人的运动学与动力学分析。

According to motion analysis , the necessary conditions for realizing the radial rectilinear motion were given and the kinematics and dynamic analysis of the cleaning robot were discussed . Exercise .

结构振动与转动能量的耗散与积聚取决于梁的伸缩运动，在伸展过程中系统的能量被耗散，在收缩过程中系统能量被积聚，在平台保持过程系统能量维持不变。

It is proved that the dissipation and accumulation of the vibration energy depends on the dimension motion : in deploying phase the energy is dissipated and in retracting phase the energy is accumulated .

裸眼井拖动器采用了伸缩式运动方案，通过两个伸缩式的驱动单元接力实现了拖动器的连续行走。

The open hole tractor adopt a stroke & retract-type move principle . By using two inchworm type drive unit the tractor realize continuous movement .

该机器人由多个相同模块组成，通过各模块之间的有规律的伸缩以及运动表面的摩擦力实现仿蚯蚓的蠕动式运动。

The robot is made up of many same modules and can realize the peristaltic motion mechanism imitating earthworm through the regular expansions between different modules and frictions on the moving surface .

总结与分析了已有的普通视频与可伸缩视频的运动信息预测编码方法，提出一种多视点视频视点间运动预测编码方法&基于精细粒度运动匹配的视点间运动跳过模式。

Existing predictive coding methods for motion information in ordinary two dimensional video coding and scalable video coding schemes are summarized and analyzed firstly . Then an inter-view motion predictive coding method , i.e. , fine-granular motion matching based motion skipped coding mode is proposed for multi-view video coding .

对基于5/3运动补偿时间提升的可伸缩视频编码中运动矢量编码及不相连像素处理进行了改进。

This paper improves on motion vector coding and unconnected pixels ' disposal in scalable video coding with 5 / 3 motion-compensated temporal lifting ( MCTL ) .

伸缩内在量较好地刻画了图形的几何细节特征，而伸缩内在矩阵刻画了图形的整体视觉特征，且该表示方法具有平移、旋转和伸缩等几何运动不变性。

The scale-invariant intrinsic variables and matrix respectively represent the local and global intrinsic geometry characteristic of the planar geometric graphics and they are invariant to geometric transformations such as translation , rotation and scaling .