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被动特性
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  passive performance
     Experiment results indicate that the machinery and control system of Five-Bar Cobot reach the design request, and Cobot has passive performance.
     同时,进行Cobot控制策略的可行性的研究,检验Cobot的被动特性
短句来源
  “被动特性”译为未确定词的双语例句
     RESULTS: According to the spontaneous firing and electrophysiological characteristics of rat VMH neurons, they can be divided into three types. TypeⅠ cells had generally no spontaneous discharge with lower membrane input resistances (192±39) MΩ (n=4) and shorter membrane time constants (8±1) msec (n=4);
     结果:根据大鼠VMH神经元自发放电频率的特征和膜的被动特性,将其分为三种类型:I型神经元在静息电位没有自发放电,并有相对较小的膜时间常数和输入电阻,分别为(8±1)msec(n=4)和(192±39)MΩ(n=4);
短句来源
     1. Around the time of birth, the membrane passive characteristics changed remarkably. The resting membrane potential shifted negatively from -42.6? .
     一.膜被动特性在出生最初几天变化比较显著,静息膜电位从P1时的-42.6±2.1mV向负电位移动至-61.3±3.4mV(P<0.05),温度对静息膜电位没有明显影响;
短句来源
     The main objective is to develop the Cobot which has passive and constraint characteristics, which includes Cobot architecture, control system, dynamics characteristic, control strategy , prototype of the Cobot and experiments of the Cobot.
     主要研究目的是研制出具有被动特性和轨迹约束特性的人机合作机器人。 主要研究人机合作机器人的机构、控制系统、运动学和动力学特性、控制策略等内容,并研制了原理样机,对人机合作机器人的特性进行了实验研究。
短句来源
     The paper studies and deduces the work principle and work mode of Cobot. Secondly, owing to analyzing the kinematics of Five-Bar Cobot, the equation of kinematics and the work space are deduced.
     其次,基于对五连杆式Cobot的运动学分析,推导出运动学方程和作业空间,建立五连杆式Cobot控制系统模型,依据Cobot的被动特性进行控制策略研究,并提出欠驱动力的控制思想。
短句来源
     Dissipativity property of semi active dampers is studied.
     研究了半主动阻尼器的被动特性 ,并给出了该被动特性的数学表达式。
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更多       
  相似匹配句对
     Passive Biomechanical Properties of Rat Esophagus
     大鼠食道的被动生物力学特性
短句来源
     The passive electrical properties of skeletal muscle cells of frog
     蛙骨骼肌细胞的被动特性
短句来源
     A PASSIVE WOMAN
     被动的女人
短句来源
     Channel Characteristics;
     信道特性 ;
短句来源
     ENERGY CHARACTERISTICS OF R.L.C
     R.L.C的能量特性
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Dissipativity property of semi active dampers is studied. The dissipativity constraint expressed in a linear matrix inequality is introduced to H2 state feedback control design, which results in bilinear matrix inequities. A practical path-following method is used to solve the BMI problem. A 5-DOF shear building model with the assumption of ideal semi-active damper is used to test the algorithm. It is found that the path-following method works well on designing H2 state feedback control with additional LMI constraints....

Dissipativity property of semi active dampers is studied. The dissipativity constraint expressed in a linear matrix inequality is introduced to H2 state feedback control design, which results in bilinear matrix inequities. A practical path-following method is used to solve the BMI problem. A 5-DOF shear building model with the assumption of ideal semi-active damper is used to test the algorithm. It is found that the path-following method works well on designing H2 state feedback control with additional LMI constraints. The numeric result for single damper cases implies collocated feedback, which can be replaced by passive linear viscous damper.

研究了半主动阻尼器的被动特性 ,并给出了该被动特性的数学表达式。将该被动特性作为约束引入状态反馈H2最优控制 ,得到双线性不等式约束下的最优化问题 ,并采用路径追踪法求解该问题。最后给出一个 5自由度算例 ,在理想半主动阻尼器的假设下 ,检验了算法 ,结果表明本文方法非常有效 ,并可推广到其他附加线性不等式约束的控制问题。此外 ,数值结果表明 ,对于单个半主动阻尼器 ,最优增益矩阵具有对位反馈的特点 ,可以用普通被动线性粘滞阻尼器代替。

Thermosensitivity of hypothalamic neurons increases gradually after t he birth of the rat.Patch-clamp technique was used to investigate the membrane properties of these neurons and the results suggested that the neurons exhibite d significant changes of their passive properties,increasing of the spike,prol onged AP duration and variations of both pre-and post-potential.Most of these neurons remained single firing.It was then concluded that the density and acti vity of ion channels changed during the process...

Thermosensitivity of hypothalamic neurons increases gradually after t he birth of the rat.Patch-clamp technique was used to investigate the membrane properties of these neurons and the results suggested that the neurons exhibite d significant changes of their passive properties,increasing of the spike,prol onged AP duration and variations of both pre-and post-potential.Most of these neurons remained single firing.It was then concluded that the density and acti vity of ion channels changed during the process of development and the thermosen sitivity of these neurons may be modulated by synaptic activity.

大鼠出生后下丘脑神经元温度敏感性逐步升高,采用电流钳技术发现,膜被动特性在出生后18d内变化显著,同时峰电位升高,动作电位间期延长,前电位及后电位均有明显的变化,大多数神经元表现为单次放电.这些结果表明发育过程中离子通道的密度和活动特性发生了改变,同时温度敏感性与突触特性存在着一定的关系.

Two key technologies are needed for a cobot to have direct physical collaboration with a human in a shared workspace: a non-holonomic constraint joint mechanism and virtual trajectory control.These were modeled and studied by experimentation.A non-holonomic constraint joint mechanism model based on double over-running clutches and its constraint control model were constructed,and the experiment validation of passive and constraint characteristics of the mechanism was carried out by a five-bar cobot,an experimental...

Two key technologies are needed for a cobot to have direct physical collaboration with a human in a shared workspace: a non-holonomic constraint joint mechanism and virtual trajectory control.These were modeled and studied by experimentation.A non-holonomic constraint joint mechanism model based on double over-running clutches and its constraint control model were constructed,and the experiment validation of passive and constraint characteristics of the mechanism was carried out by a five-bar cobot,an experimental prototype.A path planning method based on operation force was put forward and its model was constructed.The cobot followed a desired straight line and circle.Research results illustrate that a non-holonomic constraint joint mechanism possesses passive characteristics and constrains the motion of a cobot joint.Also,a path planning method can implement trajectory control of a cobot.The study results can be helpful for cobot systems in general and have important practical significance for improving man-machine collaboration technology,expanding the robot industry,and advancing robot operation automation levels.

为了使合作机器人(Cobot)在同一作业空间内与人直接进行物理合作,对Cobot的不完全约束关节机构和虚拟轨迹控制2项关键技术进行了建模及实验研究.建立了基于双超越离合器的不完全约束关节机构的模型及约束控制模型,并以五杆式Cobot为实验样机对关节机构的被动约束特性进行了实验验证.提出了基于操作力的轨迹规划方法,建立了轨迹规划模型,并对Cobot跟踪给定直线和圆弧轨迹进行了实验研究.研究结果表明,不完全约束关节机构具有被动特性,可以约束Cobot关节的运动状态;轨迹规划方法可以实现Cobot的轨迹控制.文中的研究成果经过进一步完善,可以应用到合作机器人系统,对完善人机合作技术、扩大机器人产业和提高机器人的作业水平等具有重要的实际意义.

 
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