A Preliminary Study on Kinematic Analysis of Human Hand

2019 ◽  
pp. 3-14
Author(s):  
C. N. Savithri ◽  
R. Kevin ◽  
E. Priya
Keyword(s):  
Kinematic Analysis ◽  
Human Hand ◽  
Preliminary Study

Preliminary Study on Utilization of Impact Force for Snap-Fit Assembly

2016 ◽  
Author(s):  
Tsung-Liang Wu ◽  
Chin-Chia Mai ◽  
Jih-Hsiang Yeh ◽  
Yu-tsung Chiu ◽  
Ping-Hsin Shen
Keyword(s):  
Impact Force ◽  
Torque Control ◽  
Control Mode ◽  
Human Hand ◽  
Assembly Process ◽  
High Acceleration ◽  
Input Acceleration ◽  
Preliminary Study

The purpose of this study is to evaluate the inserting operation by impact force through the robot. Applying the most intuitive motion, like human hand, to insert the electronic onto the PCB, the robot need to move up to a desired high acceleration and only torque controlled mode is adequate for manipulating. However, the position mode presents the better accuracy for positioning than the torque control mode. Therefore, this study will conduct the assembly process by switching between position and torque controlled modes to achieve the inserting operation. The results show the feasibility of applying impact force on inserting operation and the measured acceleration is around 1.9 g that is closed to the computed input acceleration.

Kinematic Analysis of an Anthropomorphic Robot Hand

2012 ◽  
Vol 187 ◽  
pp. 293-297
Author(s):  
Pramod Kuma Parida ◽  
Bibhuti Bhusan Biswal ◽  
Dhirendra Nath Thatoi
Keyword(s):  
Kinematic Analysis ◽  
Degrees Of Freedom ◽  
Industrial Applications ◽  
Human Hand ◽  
Robot Hand ◽  
Orthopedic Rehabilitation ◽  
Robot Hands

There has been a continuous effort by researchers to develop multi-fingered robot hands for variety of applications. Some of these hands are meant for industrial applications while thers are used for orthopedic rehabilitation of humans. However the degree of success to develop an anthropomorphic robot hand in close resemblence with a typical human hand has not been satisfactory. In the present work an attempt has been made to design a robot hand having five fingers with 25 degrees of freedom by closly following the anatomy of human hand.The kinematic analysis of the hand offers confirmative results for effective graspingand manipulating objects.

A magnetic measurement device for the kinematic analysis of unrestrained human hand movements

1990 ◽  
Vol 37 (2) ◽  
pp. 101-108 ◽  
Author(s):  
C. Isenberg ◽  
J. Kohler ◽  
P.W. Schönle ◽  
B. Conrad
Keyword(s):  
Kinematic Analysis ◽  
Magnetic Measurement ◽  
Hand Movements ◽  
Human Hand ◽  
Measurement Device

A preliminary study for non-invasive quantification of manganese in human hand bones

2008 ◽  
Vol 53 (19) ◽  
pp. N371-N376 ◽  
Author(s):  
Aslam ◽  
A Pejović-Milić ◽  
D R Chettle ◽  
F E McNeill ◽  
M W Pysklywec ◽  
...  
Keyword(s):  
Human Hand ◽  
Non Invasive ◽  
Hand Bones ◽  
Preliminary Study

Inverse Kinematic Analysis of Human Hand Thumb Model

2011 ◽  
Author(s):  
Mirela Toth-Tascau ◽  
Flavius Pater ◽  
Dan Ioan Stoia ◽  
Karoly Menyhardt ◽  
Serban Rosu ◽  
...  
Keyword(s):  
Kinematic Analysis ◽  
Inverse Kinematic ◽  
Human Hand ◽  
Inverse Kinematic Analysis

scholarly journals Design and Kinematic Analysis of the Car Jack

TEM Journal ◽  
2020 ◽  
pp. 924-928
Author(s):  
Nedim Pervan ◽  
Adis J. Muminović ◽  
Elmedin Mešić ◽  
Vahidin Hadžiabdić ◽  
Muamer Delić
Keyword(s):  
Kinematic Analysis ◽  
Main Parameter ◽  
Rapid Change ◽  
Power Input ◽  
Parametric Model ◽  
Human Hand ◽  
Basic Equipment ◽  
Angle Of Rotation

Car jack is the basic equipment of every car. To replace the tires or to repair a specific defect on the car it is necessary to have a car jack. A modern way of creating the complex mechanical structures is described in this paper, which allows for rapid change of parameters and therefore of the whole design, i.e. the parameterized car jack model was developed. Also, the goal of this research is to carry out kinematic analysis of a car jack design. Parametric model is developed in such a way that all parameters of design are in correlations to one main parameter. The angle of thread spindle is chosen for main parameter. Usually, main parameter should be chosen as one of the parameters from power input elements. Car jack has a human hand power which is applied on car jack handle and because of that, the angle of rotation of thread spindle is the best for main parameter.

The Ultrastructure of Metastatic Human Mammary Carcinoma After Prolonged Estrogen Therapy

1967 ◽  
Vol 25 ◽  
pp. 180-181
Author(s):  
John H.L. Watson ◽  
John L. Swedo ◽  
R.W. Talley
Keyword(s):  
Mammary Carcinoma ◽  
Osmium Tetroxide ◽  
Estrogen Therapy ◽  
Ultrastructural Level ◽  
Uranyl Acetate ◽  
Human Mammary Carcinoma ◽  
Surgical Biopsy ◽  
Lead Hydroxide ◽  
Preliminary Study ◽  
Hormonal Therapies

A preliminary study of human mammary carcinoma on the ultrastructural level is reported for a metastatic, subcutaneous nodule, obtained as a surgical biopsy. The patient's tumor had responded favorably to a series of hormonal therapies, including androgens, estrogens, progestins, and corticoids for recurring nodules over eight years. The pertinent nodule was removed from the region of the gluteal maximus, two weeks following stilbestrol therapy. It was about 1.5 cms in diameter, and was located within the dermis. Pieces from it were fixed immediately in cold fixatives: phosphate buffered osmium tetroxide, glutaraldehyde, and paraformaldehyde. Embedment in each case was in Vestopal W. Contrasting was done with combinations of uranyl acetate and lead hydroxide.

Fine structure of early degenerating myofibers in the tibialis anterior of young ‘MDX’ mouse

1988 ◽  
Vol 46 ◽  
pp. 322-323
Author(s):  
H.D. Geissinger ◽  
C.K. McDonald-Taylor
Keyword(s):  
Fine Structure ◽  
Muscle Regeneration ◽  
Tibialis Anterior ◽  
Genetic Defect ◽  
Mdx Mouse ◽  
Mdx Mice ◽  
Histopathological Changes ◽  
Electron Microscopic ◽  
Dystrophic Mouse ◽  
Preliminary Study

A new strain of mice, which had arisen by mutation from a dystrophic mouse colony was designated ‘mdx’, because the genetic defect, which manifests itself in brief periods of muscle destruction followed by episodes of muscle regeneration appears to be X-linked. Further studies of histopathological changes in muscle from ‘mdx’ mice at the light microscopic or electron microscopic levels have been published, but only one preliminary study has been on the tibialis anterior (TA) of ‘mdx’ mice less than four weeks old. Lesions in the ‘mdx’ mice vary between different muscles, and centronucleation of fibers in all muscles studied so far appears to be especially prominent in older mice. Lesions in young ‘mdx’ mice have not been studied extensively, and the results appear to be at variance with one another. The degenerative and regenerative aspects of the lesions in the TA of 23 to 26-day-old ‘mdx’ mice appear to vary quantitatively.

Kinematic Approximations in TED and RHEED Analysis of Reconstructed Surfaces

1990 ◽  
Vol 48 (2) ◽  
pp. 396-397
Author(s):  
L. -M. Peng ◽  
M. J. Whelan
Keyword(s):  
Electron Diffraction ◽  
Kinematic Analysis ◽  
Incident Beam ◽  
High Energy ◽  
Energy Electron ◽  
Great Success ◽  
High Energy Electron ◽  
Kinematic Approximation ◽  
Reconstructed Surfaces

In recent years there has been a trend in the structure determination of reconstructed surfaces to use high energy electron diffraction techniques, and to employ a kinematic approximation in analyzing the intensities of surface superlattice reflections. Experimentally this is motivated by the great success of the determination of the dimer adatom stacking fault (DAS) structure of the Si(111) 7 × 7 reconstructed surface.While in the case of transmission electron diffraction (TED) the validity of the kinematic approximation has been examined by using multislice calculations for Si and certain incident beam directions, far less has been done in the reflection high energy electron diffraction (RHEED) case. In this paper we aim to provide a thorough Bloch wave analysis of the various diffraction processes involved, and to set criteria on the validity for the kinematic analysis of the intensities of the surface superlattice reflections.The validity of the kinematic analysis, being common to both the TED and RHEED case, relies primarily on two underlying observations, namely (l)the surface superlattice scattering in the selvedge is kinematically dominating, and (2)the superlattice diffracted beams are uncoupled from the fundamental diffracted beams within the bulk.

Ultrastructural observations of the aorta of calves implanted with a mechanical left ventricular assist device

1990 ◽  
Vol 48 (3) ◽  
pp. 834-835
Author(s):  
J P Cassella ◽  
V Salih ◽  
T R Graham
Keyword(s):  
Left Ventricular Assist Device ◽  
Ventricular Assist Device ◽  
Left Ventricular ◽  
Aortic Tissue ◽  
Assist Device ◽  
Ventricular Assist ◽  
Transmission Electron ◽  
Left Ventricular Assist ◽  
Preliminary Study

Left ventricular assist systems are being developed for eventual long term or permanent implantation as an alternative to heart transplantation in patients unsuitable for or denied the transplant option. Evaluation of the effects of these devices upon normal physiology is required. A preliminary study was conducted to evaluate the morphology of aortic tissue from calves implanted with a pneumatic Left Ventricular Assist device-LVAD. Two 3 month old heifer calves (calf 1 and calf 2) were electively explanted after 128 days and 47 days respectively. Descending thoracic aortic tissue from both animals was removed immediately post mortem and placed into karnovsky’s fixative. The tissue was subsequently processed for transmission electron microscopy (TEM). Some aortic tissue was fixed in neutral buffered formalin and processed for routine light microscopy.

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