Results 61 to 70 of about 78,265 (290)
INFLUENCE OF THE STIFFNESS AND FRICTIONAL CHARACTERISTICS ON THE SHANK TORQUE OF SCREWS IN BOLTED JOINTS [PDF]
, 2018 This work aims at determining the influence of tribological and stiffness characteristics of a bolted joint on the residual shank torque of the screw.
Cavalli, Omar +6 more
core
Advanced Functional Materials, EarlyView.Bioprosthetic aortic valves have revolutionized the treatment of aortic stenosis, but their durability is limited by structural valve deterioration (SVD). This review focuses on the pericardial tissue at the heart of these valves, examining how its mechanical properties and calcification drive fatigue and failure.
Gabriele Greco +7 more
wiley +1 more source
Hysteretic behavior of a belt tensioner: modeling and experimental investigation [PDF]
, 2005 In this paper we describe the modeling of the hysteretic behavior of belt tensioners. An initial experimental device is composed only of the tensioner by using forcing frequencies, preloads and deflection amplitudes.
Dufour, Regis +2 more
core +3 more sources
Advanced Functional Materials, EarlyView.Reprogrammable multi‐material smart textiles knitted from liquid crystal elastomer fibers undergo 2D and 3D deformation under thermal and photo stimuli. Circularly knitted tubular structures reversibly contract in radial and axial directions, enabling autonomous climbing, liquid release, and micro pumping.
Xue Wan +8 more
wiley +1 more source
Spindle Bearing Preload Control Using NI MyRIO
Applied SciencesThe article presents an application for controlling the preload of bearings in a model spindle system. The bearing preload will be implemented using piezoelectric elements, which allow for changing the preload of bearings during spindle operation, which ...
Paweł Turek
doaj +1 more source
Electromagnetic attachment mechanism [PDF]
, 1992 An electromagnetic attachment mechanism is disclosed for use as an end effector of a remote manipulator system. A pair of electromagnets, each with a U-shaped magnetic core with a pull-in coil and two holding coils, are mounted by a spring suspension ...
Monford, Leo G., Jr.
core +1 more source
Advanced Healthcare Materials, EarlyView.Coagulative granular hydrogels are composed of packed thrombin‐functionalized microgels that catalyze the conversion of fibrinogen into a secondary fibrin network, filling the interstitial voids. This bio‐inspired approach stabilizes the biomaterial to match the robustness of bulk hydrogels without compromising injectability, mimicking the initial ...
Zhipeng Deng +16 more
wiley +1 more source
Prediction Method of Bearing Life of Train Traction Motor Based on Preload Variation
机车电传动, 2018 In order to predict the remaining working life of the bearing, the influence of traction motor bearing preload on bearing structure and dynamics characteristics was analyzed.
HE Deqiang +3 more
doaj
Simulace provozu bezvůlového převodu ozubenými koly s elastickými prvky [PDF]
ACC Journal, 2011 Článek obsahuje popis jednoho z principů bezvůlového převodu ozubenými koly. Detailně je řešena konstrukce bezvůlové převodovky s předlohovými hřídeli. Vůle v záběrech ozubených kol a v ložiscích jsou vymezeny pomocí předepjaté torzní tyče.
Vojtěch Klouček
doaj
Slowly cycling Rho kinase-dependent actomyosin cross-bridge slippage explains intrinsic high compliance of detrusor smooth muscle [PDF]
, 2017 Biological soft tissues are viscoelastic because they display timeindependent pseudoelasticity and time-dependent viscosity. However, there is evidence that the bladder may also display plasticity, defined as an increase in strain that is unrecoverable ...
Hurley, Tanner +6 more
core +2 more sources