Results 31 to 40 of about 347,691 (287)
Reduction of gear pair transmission error with tooth profile modification [PDF]
, 2008 The gear noise problem that widely occurs in power transmission systems is typically characterised by one or more high amplitude acoustic signals. The noise originates from the vibration of the gear pair system caused by transmission error excitation ...
Alfano, G +2 more
core
Single and Multi-Piece Behavioral Models of IC Output Buffers [PDF]
, 2006 This paper discusses the switching properties of the behavioral models of integrated circuit output buffers. Present behavioral models are based on a two-piece structure defined by a linear combination of two submodels for the two logic states.
Canavero, Flavio +3 more
core +1 more source
Molecular Oncology, EarlyView.Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang +12 more
wiley +1 more source
Dynamic modeling and analysis of load sharing characteristics of wind turbine gearbox
Advances in Mechanical Engineering, 2015 A coupled dynamic model, which contains helical gears-shafts-bearings for a wind turbine gearbox transmission system, was built considering nonlinear factors of the time-varying mesh stiffness, the external varying load, and the dynamic transmission ...
Pengxing Yi +3 more
doaj +1 more source
Dynamic Torsional Stiffness of Reducers and Its Testing Method
Applied Sciences, 2023 The torsional stiffness of the reducer is commonly assumed to be static and tested using the hysteresis curve method. However, practical engineering experience shows that the torsional stiffness is dynamic rather than static, and the hysteresis curve ...
Huiming Cheng +3 more
doaj +1 more source
High-Efficiency Resonant RF Spin Rotator with Broad Phase Space Acceptance for Pulsed Polarized Cold Neutron Beams [PDF]
, 2007 We have developed a radio-frequency resonant spin rotator to reverse the neutron polarization in a 9.5 cm x 9.5 cm pulsed cold neutron beam with high efficiency over a broad cold neutron energy range. The effect of the spin reversal by the rotator on the
A. Abragam +40 more
core +6 more sources
Calculation of static transmission errors associated with thermo-elastic coupling contacts of spur gears [PDF]
Vibroengineering Procedia, 2018 The static transmission error is one of the key incentives of gear dynamics and addressed by many scholars. However, the traditional calculation method of static transmission errors of spur gears does not take into account the influence of thermo-elastic coupling caused by the gear temperature field, and it limits the accuracy of the dynamic ...
Hao Wang +3 more
openaire +1 more source
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Considerable efforts have been dedicated to developing effective treatments for post‐stroke executive impairment (PSEI), among which repetitive transcranial magnetic stimulation (rTMS) has shown great potential. This study aimed to investigate the therapeutic effects of high‐frequency rTMS on working memory (WM) and response ...
Mengting Lao +6 more
wiley +1 more source
Scientific ReportsA loaded tooth contact analysis model was developed to assess transmission error by incorporating profile errors in a helical gear pair. Profile errors for all teeth of both the pinion and wheel were measured, and the mean profile error was computed and ...
Dongu Im +6 more
doaj +1 more source
Applied Sciences, 2020 The precise mathematical model for the tooth surface and transition surface of spiral bevel gears is derived. Taking a pair of spiral bevel gears of a heavy vehicle as an example of calculation and analysis, a finite element model of spiral bevel gears ...
Yimeng Fu +5 more
doaj +1 more source