Results 271 to 280 of about 7,908,697 (297)

Torsion in Quadrupeds and Its Impact on Mammalian Joints

Clinical Orthopaedics and Related Research, 1994
Congenital and acquired torsion occur in the limbs of domestic animals. Congenital abnormalities are of clinical significance in foals; they are also seen in calves whose dams have ingested certain toxic plants that contain teratogenic agents. Acquired torsional deformities are most common in foals, but are also observed in adult horses, dogs, and ...
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Suppression of Lateral and Torsional Stick–Slip Vibrations of Drillstrings With Impact and Torsional Dampers

Journal of Vibration and Acoustics, 2016
Violent drillstring vibrations in a well should be suppressed to prevent premature failure of the drillstring parts and borehole wall and enhance the drilling process. This paper presents novel centralized impact dampers and torsional vibration dampers for lateral and torsional stick–slip vibration suppression which will function well in the harsh ...
Lingnan Hu, Alan Palazzolo, Mansour Karkoub   +2 more
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Impact of shaft torsionals in steam turbine control

IEEE Transactions on Energy Conversion, 1989
Shaft torsional vibrations are discussed along with their effect on steam turbine-generator control following severe supply-network disturbances and the destabilization of shaft torsional modes through the action of high-speed electrohydraulic controllers.
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Impact of Torsional and Bending Inertia on Root Canal Instruments

Journal of Endodontics, 2001
The laws of applied mechanics can be used to analyze and predict the behavior of mechanical parts subjected to strain and distortion, such as endodontic instruments. Simple mathematical formulas can be used to represent the impact of torsional and bending inertias on stresses in endodontic instruments being used in root canals.
Y L, Turpin, F, Chagneau, , Bartier, G, Cathelineau, J M, Vulcain   +4 more
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Impact Response of Torsionally Coupled Base-isolated Structures

Journal of Vibration and Control, 2010
The seismic response of a single-story asymmetric structure supported on various base isolation systems during impact with adjacent structures is investigated. Eccentricities arising due to elastic forces in the columns at the top-deck and the restoring forces in the isolation systems at the base-raft are considered.
MATSAGAR, VA, JANGID, RS
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Torsional Constraints of DNA Substrates Impact Cas9 Cleavage

Journal of the American Chemical Society, 2016
To examine the effect of the torsional constraints imposed on DNA substrates on Cas9 cleavage, we prepared constrained DNA substrates using a DNA origami frame. By fixing the dsDNA at the connectors of the DNA frame, we created torsionally constrained or relaxed substrates.
Räz MH, Hidaka K, Sturla SJ, Sugiyama H, Endo M   +4 more
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Experimental study of torsional impact fatigue of shafts

Journal of Sound and Vibration, 2007
Abstract This paper presents a methodology to study the fatigue strength of shafts under repeated impacts. The equipment for repeated impacts was designed for torsion tests of shafts for the same loading conditions as in service. The stress concentration effect, due to a fillet radius between square and circular cross-sections of the axle, was ...
Ion Dumitru, Liviu Marsavina, Nicolae Faur   +2 more
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Impact of Torsion on Flexible Interconnects

2022 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS), 2022
Ekrem Altinozen, Ana Vukovic, Phillip Sewell   +2 more
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Dynamic Modeling of Torsional Impact and its Stiffness Measurement for Impact Wrench

Volume 2: Diagnostics and Detection; Drilling; Dynamics and Control of Wind Energy Systems; Energy Harvesting; Estimation and Identification; Flexible and Smart Structure Control; Fuels Cells/Energy Storage; Human Robot Interaction; HVAC Building Energy Management; Industrial Applications; Intelligent Transportation Systems; Manufacturing; Mechatronics; Modelling and Validation; Motion and Vibration Control Applications, 2015
Impact wrench is a popular hand tool whose mechanism is featured with impact characterized by short time duration and large contact torque. The nonlinear impact problem has drawn researchers’ interests for a long time and the investigation is still undergoing.
Shengli Zhang, Jiong Tang
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Femoral Torsion: Impact of Femur Position on CT and Stereoradiography Measurements

American Journal of Roentgenology, 2017
The purpose of this study is to evaluate stereoradiographic measurements of femoral torsion with different femoral positions, in comparison with CT measurements, with use of the current standard axial-slice technique. We hypothesize that CT measurements vary with femoral spatial positioning because of the resulting projection onto the CT plane, whereas
Gérard, Morvan, Henri, Guerini, Grégory, Carré, Valérie, Vuillemin   +3 more
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