نتایج جستجو برای: joint elasticity

تعداد نتایج: 213860  

Journal: :Journal of neurophysiology 2016
Vaughan G Macefield Lucy Norcliffe-Kaufmann Niamh Goulding Jose-Alberto Palma Cristina Fuente Mora Horacio Kaufmann

Hereditary sensory and autonomic neuropathy type III (HSAN III) features disturbed proprioception and a marked ataxic gait. We recently showed that joint angle matching error at the knee is positively correlated with the degree of ataxia. Using intraneural microelectrodes, we also documented that these patients lack functional muscle spindle afferents but have preserved large-diameter cutaneous...

2010
Nicola Vitiello Tommaso Lenzi Stefano Marco Maria De Rossi Stefano Roccella Maria Chiara Carrozza

Antagonistic Driven Compliant Joints (ADCJs) are object of great interest in current robotics research, representing one of the most widely applied solutions to develop human-like and safe joints for humanrobot interaction. Providing the joint with ‘‘actively” adjustable hardware compliance, ADCJs have two distinctive features: (1) the joint is powered by two independent ‘‘actuation units” and ...

Journal: :Actuators 2022

The focus of this work is to design a control strategy with the dynamic characteristics spring damping realize virtual flexibility and softness rigid-joint exoskeleton without installing real, physical elastic devices. basic idea “virtual softening strategy” for single rigid joint that damper (VSD) installed between motor output shaft. By designing signal motor, torque actuator softened so has ...

2011
Michael Ruderman

Elastic robot joints gain in importance since the nowadays robotics tends to the lightweight structures. The lightweight metals and composite materials deployed not only in the links but also in the joint assemblies affect the overall stiffness of robotic system. The elastic joints provide the loaded robot motion with additional compliance and can lead to significant control errors and vibratio...

2009
Alessandro De Luca Bruno Siciliano

'The regulation problem for articulated mechanical arms is often solved by designing simple control laws which strongly exploit the physical properties of the system. It is well known that a rigid robot can be globally asymptotically stabilized around a given joint configuration via a P D controller on the joint errors, provided that gravity is exactly cancelled by feedback [l]. Under a mild co...

Journal: :Annals of the rheumatic diseases 1975
S Silverman L Constine W Harvey R Grahame

A survey of joint mobility was conducted in 295 healthy children between the ages of 5 and 10 years who attended a London primary school. Estimates of the commonly used measurements, that is passive dorsiflexion of the wirsts and ankles, passive hypertension of the elbows and knee, were too insensitive to detect any age effect. However, a method of estimating extensibility of the 5th metacarpop...

Journal: :Soft Computing 2021

Based on the three-stage Stackelberg dynamic game model, we study how to make product quality control strategy in three-echelon supply chain consisting of manufacturer, retailer and customer under dual-channel structure manufacturer structure. In two decision models (decentralized decision, centralized decision), analyze demand price elasticity, market share ratio, revenue sharing ratio cost co...

Journal: :Mathematics and Mechanics of Solids 2013

2013
Georgiana Copil Daniel Moldovan Hong Linh Truong Schahram Dustdar

Fine-grained elasticity control of cloud services has to deal with multiple elasticity perspectives (quality, cost, and resources). We propose a cloud services elasticity control mechanism that considers the service structure for controlling the cloud service elasticity at multiple levels, by firstly defining an abstract composition model for cloud services and enabling multi-level elasticity c...

Journal: :International Economic Review 2022

The article examines the joint evolution of human capital investment and social networking where network may be endogenous or exogenous. It extends Cabrales et al. (Games Economic Behavior 72 (2011), 339–60) to dynamic settings allow for intergenerational transfers endowments as decisions. Social multipliers characterize equilibria. associated transfer elasticities exhibit rich dependence on ef...

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