基于Kinect的人体三维动作实时动态识别

针对传统的二维图片动作识别算法识别率相对不高、实时性不强的问题,文章提出一种三维的人体动作实时识别的方法。该方法首先通过Kinect获取人体三维骨骼数据,然后对骨骼数据信息采取归一化的方法进行数据对齐的预处理,使得与实时数据与标准数据的角度阈值和距离参考值统一。最后与标准动作采用多特征融合的识别算法对动作进行识别与匹配的方法,并在此基础上改进基于关节点角度的动作识别方法。实验结果表明,文章方法运行速度较快,可有效消除角度测量不稳定以及距离测量无法检测方向上的差异造成的动作匹配不准确。满足三维动作识别的实时性、鲁棒性强。     

Muscle damage induced by the ionophore A23187 can be prevented by prostaglandin inhibitors and leupeptin

Summary Frog skeletal muscle incubated in vitro with the ionophore A23187 shows extensive morphological alterations. Myofilament disruption, presumably mediated by excess intracellular calcium, can be partially prevented by preincubating the muscle with inhibitors of prostaglandin synthesis and the lysosomal thiol protease inhibitor leupeptin.The author would like to thank Dr R. J. Walter for helpful comments and Ms V. Kriho for valuable technical assistance     

3D游戏中人物动作的实时渲染

论述了骨骼动画这种渲染人物动作的过程与方法,分析了骨骼动画和传统的关键帧动画相比的优点以及其自身的特点和网格数据、骨骼数据在,X文件中的存储方式．     

高浓度氨肽对促进小鼠心肌与骨骼肌线粒体合成的影响

实验观察高浓度氨肽对成年昆明种小鼠心肌和骨骼肌细胞内线粒体数量和分布的影响,通过对速射电镜照片的比较分析,证明高浓度氨肽具有间接增强和提部心肌、骨骼肌运动时的供能作用．     

Shape Recognition and Retrieval Based on Edit Distance and Dynamic Programming

An important aim in pattern recognition is to cluster the given shapes. This paper presents a shape recognition and retrieval algorithm. The algorithm first extracts the skeletal features using the medial axis transform. Then, the features are transformed into a string of symbols with the similarity among those symbols computed based on the edit distance. Finally, the shapes are identified using dynamic programming. Two public datasets are analyzed to demonstrate that the present approach is better than previous approaches.     

低氧对动物的骨骼肌LDH活性影响

本文比较了平原引入高原的子代性成年Wistar大鼠,成体高原土著动物－高原鼠兔（O.curzoniae),和成体根田鼠（M.oeconomus)在不同模拟低氧和时间下骨骼肌中乳酸脱氢酶活性的比较研究。研究表明无论在海拔5000米或8000米以及模拟低氧1天至25天时,三种动物骨骼肌中乳酸脱氢酶活性无差异。     

Skeletal morphogenesis and growth check lines in the Antarctic bryozoan Melicerita obliqua

Skeletal morphology and colony growth pattern of the Antarctic bryozoan Melicerita obliqua from the eastern Weddell Sea, on the Weddell Sea shelf, have been investigated in order to test the hypothesis of a relationship between growth banding and the seasonal variability of the high Antarctic environment. Melicerita obliqua is a common endemic species on Antarctic shelves. The colonies are bifoliate-flattened and sabre-shaped, and are anchored with organic rootlets in the sediment. The most significant feature of the skeletal morphology is the segmentation of the colony caused by the formation of annual growth check lines. Formation of check lines occurs as a combination of thickened walls in the proximal part of the nodal autozooid and an oblong, thin-walled distal part. Both are separated by a back-fold of the frontal cryptocyst resulting in a narrow slit on the cryptocyst. Changes in the length of autozooids and segments indicate seasonal and inter-annual variations in the environmental factors. Within a segment, nodal autozooids are longest, whereas autozooids immediately proximal to the next node are shortest. The length of segments varies within a single colony but shows a slight decrease with colony age. Melicerita obliqua displays a slightly decreasing growth rate with increasing age, hinting at a limited life span fixed in the genetic programme. Individual colonies of M. obliqua reveal a maximum age of about 45 years. Seasonal growth patterns in the colony are expressed in segment formation with nodes and internodes, differences in autozooid length, and polypide degeneration/regeneration cycles. Sizes of segments within colonies are used to calculate colony growth rate. Variations in colony growth rate calculated from length increment of segments depict a pattern of longer and shorter segments indicating phytoplankton variability between the years.     

Fuzzy Control Method with Application for Functional Neuromuscular Stimulation System

IntroductionFunctional neuromuscular stimulation( FNS) hasbeen developed as a rehabilitative technology forpeople with neurological disorders such as thosecaused by spinal cord injury,stroke,and headinjury. FNS systems operate by providingcomputer- controlled electrical stimuli viaelectrodes to paralyzed muscles which have losttheir connection to the spinal cord and higher levelcontrol centers[1] but still have their peripheralnerve supply intact. In recent years,there havebeen many signific…     

极量运动对小鼠骨胳肌八种元素含量的影响

利用高频电感耦合等离子体原子发射光谱法（ICP－PES）测定了小鼠极量运动（一次性衰竭游泳运动）后，骨骼肌内锌（Zn）、铜（Cu）、铁（Fe）、猛（Mn）、硒（Se）、钼（Mo）6种微量元素及钙（Ca）、镁（Mg）2种宏量元素含量的变化。结果表明，极量运动后可使骨骼肌内Se含量上升，Ca，Mg含量则明显下降。为进一步研究极量运动地运动员骨胳微量、宏量元素含量的影响提供了参考，对运动员合理补充微量元素提供了科学的依据。