نتایج جستجو برای: multi finger hand

تعداد نتایج: 736687  

H Mohammad Abadi S Shamsoddini

Objective: To study of relationship between alopecia areata and finger print dermatoglyphic types in 100 patients with alopecia areata and in 100 controls. Methods: A case control analytical study was done on fingerprints of patients with alopecia areata. The control cases were older than 50 years old without any history of alopecia areata. Dermatoglyphical trials of total fingers were al...

2006
Tara Lynn McIsaac Andrew J. Fuglevand Richard B. Levine Gail F. Koshland Leslie P. Tolbert Scott J. Sherman Leslie Tolbert Scott Sherman Monique Leon Douglas Keen Davide Dulcis Daniela Boassa Gina Yanochko

The dexterity of the human hand depends largely on the ability to move the fingers independently, the execution of which requires the coordination of multiple muscles. How these muscle ensembles are recruited by the central nervous system is not clear. Therefore, the objective of this dissertation was to identify some of the neural mechanisms whereby certain hand muscles are recruited into func...

ژورنال: سلامت کار ایران 2018

Background and aims: Despite automation, still many occupations require the use of hand tools in their routine activities. Scissors are essential tools for many workers in different occupations such as sewing and clothes making.The aim of this study was to investigate the effects of three re-designed models of sewing scissors (models A, B and C) on user performance, tool usability and hand and ...

Journal: :IEEE robotics and automation letters 2022

Constraining contacts to remain fixed on an object during manipulation limits the potential workspace size, as motion is subject hand’s kinematic topology. Finger gaiting one way alleviate such restraints. It allows be freely broken and remade so operate different manifolds. This capability, however, has traditionally been difficult or impossible practically realize. A finger system must simult...

2011

F gait is a strategy for a multi-fingered robotic hand to change its grasp status sequentially by relocating its fingers, which gives the hand more dexterity to perform large scale or complicated dextrous manipulations (Hong et al. 1990). In a finger gait, the robotic hand must achieve the desired configuration of both the object and the fingers, which involves the manipulation of the object as...

Journal: :Annals of the Rheumatic Diseases 1949

2004
Sara A. Winges Marco Santello

The control of whole hand grasping relies on complex coordination of multiple forces. While many studies have characterized the coordination of finger forces and torques, the control of hand muscle activity underlying multi-digit grasping has not been studied to the same extent. Motor unit synchrony across finger muscles or muscle compartments might be one of the factors underlying the limited ...

Journal: :Journal of neurophysiology 2004
Sara A Winges Marco Santello

The control of whole hand grasping relies on complex coordination of multiple forces. While many studies have characterized the coordination of finger forces and torques, the control of hand muscle activity underlying multi-digit grasping has not been studied to the same extent. Motor-unit synchrony across finger muscles or muscle compartments might be one of the factors underlying the limited ...

2014
K. Sindhu L. Latha Chaohong Wu Sergey Tulyakov Anil K. Jain Arun Ross

In biometric security system still fingerprint authentication is a challenging task for the altered and compressed images. Apart from the Automatic Fingerprint Identification System(AFIS), the altered, blurred and compressed images are still having quality issues. This paper presents an efficient multi-model biometric system based on multiple fingerprint images which includes altered fingerprin...

Journal: :Journal of Microwaves, Optoelectronics and Electromagnetic Applications 2023

This paper describes the automation of a forearm prosthesis using signal collected by Fiber Bragg Grating (FBG) sensor. The FBG sensor is applied to one subject's measure deformation as result index and middle fingers when moved individually. It possible control joint model allied compliant hand mechanism through analyses. Each finger movement has its features, such amplitude, which opens possi...

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