动作时间

There is a small action range in archery.Simple methods and analysis is inadequate,so the author,on the basis of testing the archery athletes in national team with the Qualisisy infrared photoelectric testing system,Footscan sole pressure testing system,Noraxon myoelectricity remote testing system, etc,analyzes comprehensively the action technique of the athletes in national team from the posture,body motion characteristics,body posture equilibrium and stability,distribution of centre sole pressure, myoelectricity characteristics,etc,with the methods of relative software and data statistics.The conclusions and the suggestions are as follows:Conclusion:Firstly,the communality of posture angle,muscle strength,the activation order of main muscle during raising the bow, raising the bow and the timing of the raising could be used as the evaluation index of technique action in archery;Secondly,the length of the time needed in the different periods couldn\'t be used as technique evaluation index since it has no relation with the result.But the time of raising and pulling back the row is relatively fixed,and the time has a positive relation with the archery achievement of the national team in China.Thirdly,the central index of the sole pressure could be used as the reference criterion of selecting athletes and forecasting achievement.During playing archery,the interrelation between the central index of the sole pressure and the achievement is different individually and in different periods.Fourthly,there is low stability of the archery athletes in the front and back direction during the action, caused by the athletes\' posture disequilibrium of dorsal abdominal muscle and non-professional sport shoes..Fifthly,kinematics and electromyography shows that the people on archery in China haven\'t taken the raising and pulling back the row seriously.

射箭的肢体动作幅度小，简单的手段和分析不能满足其需要，笔者结合各种运动生物力学仪器优点及射箭项目的特性，选用Qualisisy红外光点测试系统、Footscan足底压力测试系统、Noraxon肌电遥测系统等对国家队射箭队运动员进行多方位的测试，运用相关软件及数理统计方法，对运动员的射箭动作技术，从射箭动作的姿态构架、肢体运动特点，身体姿态平衡稳定性、足底压力中心分布、肌电特性等进行全面分析，结论及建议如下：结论：第一，姿态角、肌肉用力激活程度、举弓阶段主要用力肌肉激活顺序、举弓、开弓时间等的一致性可作为射箭技术动作评价指标；第二，各动作阶段所用时间的长短不能作为技术评价指标，但举、开弓的时间相对较固定，开举弓时间比与中国国家队射箭成绩正弱相关达到显著性；第三，闭眼状态下足底压力中心单位面积轨迹长与144支箭最好成绩正相关达到显著性，可作为身体素质、选材及成绩预测的参考依据；实射时身体平衡的足底压力中心指标与成绩的相关程度具有个体性差异、阶段性差异；第四，射箭运动员实射时身体在前后方向上的稳定性较差，这与运动员的站立姿态、腹背肌力量的不匹配以及射箭没有专业运动鞋有关；第五，运动学及肌电学都表明中国射箭训练对举弓、开弓阶段的重视不够，背部肌肉用力特征不明显，撒放技术合理性不高。

A temperature measuring system was designed to analyze the influence of ambient temperature on operating time of synchronous switch.

为分析环境温度对同步开关动作时间的影响，设计了一种温度检测系统。

After comparing with previously report, conclusion was as follow: when players use take-off spike movement by single-foot, the strides should increase progressively after observing the ball's direction, and raise the height of jump by getting faster horizontal and vertical velocity of body gravity. In order to avoid increasing the time of take-off, the body gravity is inadvisable to drop so much. In air motion period, player's movement of arm swing will influences the time of spike, if we emphasize the quick offensive, it should reduce the movement of arm swing to decrease the time of spike. When spiking, the joint of elbow should flex by a little range to make forearm powerful.

经由本实验结果与过去研究比较后得到以下结论：选手在执行单脚起跳扣球动作时，助跑的步幅宜在观察球的动向后，采取递增的方式助跑，并加快身体重心水平速度及垂直速度，以提高起跳高度；起跳期起跳脚踏入瞬间身体重心不宜大幅度的下降，以避免增加起跳所花费的时间，影响扣球的节奏及战术的执行；空中动作期时，选手的挥臂动作会影响击球时间，若要强调快速的进攻节奏，宜减少扣球的挥臂动作，以降低完成扣球所需的时间；而击球瞬间肘关节宜保持小幅度的弯曲，以发挥前臂的力量和速度。

Firstly, system model depicted by TSIOA is transformed into an USTGSS (untimed stable label transition graph of symbolic state) which does not contain abstract time delay transitions. Then, the testing methods based on LTS are used to the generate transition sequences from USTGSS according to structural coverage criteria. Finally, a process of constructing and executing the test cases is given, in which object functions of time delay variables are imported, and time delay variables used in the transition sequences are solved dynamically by linear programming techniques.

该方法首先将时间安全输入/输出自动机描述的系统模型转换为不含抽象时间延迟迁移的稳定符号状态迁移图(untimed stable transition graph of symbolic state，简称USTGSS)；然后采用基于标号迁移系统(labeled transition system，简称LTS)的测试方法来静态生成满足各种结构覆盖标准的包含时间延迟变量迁移动作序列；最后，给出了一个根据迁移动作序列构造和执行测试用例的过程，该过程引入了时间延迟变量目标函数，并采用线性约束求解方法动态求解迁移动作序列中的时间延迟变量。

The vaulter seemed to start to swing to inversion as he swung approaching a constant visual distance to one stationary point in the space.

由髋角相对於眼睛水平位置变化曲线，发现当眼睛到达某一固定位置时，同试跳高呈现曲线重叠现象，与前摆脚往上开始动作时间相同。

To remove these safety hazards, an automatic gasproducing dry powder explosion suppression system has been developed through technical improvement. The system which consists of ultraviolet sensor, controller and explosive suppressor, can be effectively used in open or half open area with some explosive gas or combustive powder.

CNG加气站现有消防设施动作时间长，不能有效防止天然气的爆炸，为此，开发研制了产气式自动干粉抑爆系统，由紫外传感器、控制器、抑爆器组成，可用于爆炸性气体场所的敞开或半敞开空间抑爆。

Four chapters in the first volume, including "The Origin of Movement","Thinking of Effort","Movement Space" and "To Find Body", develop the theoretical structures of body language in western modern dance, analyze elements of movements and their semantic characters, reveal the conceptual transformation in the science of modern human movements and science of body language, and discover the re-interpretation through modern dance about the essence of movement and space and time of movement Another four chapters in the second volume including "Feminized Body""Masculine Body""Sex-confused Body" and "Body's Origin", study respectively features of body language in the field of ballet, modern dance and post-modern dance, provide a chronicle embodying the form variation of body language through lineal comparison, and exposit spiritual pursuit and value preference of modern choreographers and their relationship with history and culture. Therefore, effective body strategy of "Back to Body's Origin" in today's human existence is offered and teaches us how to keep our own national culture in the times of cultural globalization and integration.

前者通过&动作的根源&、&力效思维&、&运动空间&、&发现身体&等4章，展开西方现代舞身体动作语言的理论构架，分析其动作语言要素和语义特征，揭示现代人体动作科学与身体语言科学的观念性变革，发现现代舞蹈对动作本质、运动空间和时间所做出的重新阐释；后者通过&女性化的身体&、&男性化的身体&、&性倒错的身体&及&身体的原点&等4章，研究芭蕾舞、现代舞、后现代舞的身体动作语言形态的各自特征，在纵向比较中，提供身体语言形态的&体现&变异的历史图表，在舞蹈本文的叙述和重新阅读中，提示现代舞蹈家的精神追求与价值取向，揭示其与历史文化之间的对应关系，提供现时代人类生存中所应采取的有效的身体策略——返回身体的原点，在全球文化大交流、大融合之中，保持民族文化的独立品格。

Action time is very short at higher frequencies generally select direct-acting type, large-caliber use rapid serial.

动作时间很短频率较高时一般选取直动式，大口径选用快速系列。

At time aspect, the time of take-off phase and resultant time (take-off phase and flight time) of one-foot jump were significantly smaller than two- foot jump.

三、在时间方面，单脚起跳动作在起跳期时间及总合时间（起跳期加空中动作期的时间）显著短於双脚起跳动作。

The interaction doesn't exist between the influence of response sets and stimulus-response compatibility on the MT.

二、不同反应形式与有无相容性两者对动作时间影响无交互作用存在。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新