Results 61 to 70 of about 14,054 (273)
Engineering Applications of Computational Fluid MechanicsDue to the limited spatial constraints and complex motion of aerospace planetary gear reducers, under-race lubrication is employed for planetary gear bearings to ensure adequate lubrication performance with minimal oil flow.
Junda Chen +6 more
doaj +1 more source
Quiet Clean Short-haul Experimental Engine (QCSEE) main reduction gears detailed design report [PDF]
Lightweight turbine engines with geared slower speed fans are considered. The design of two similar but different gear ratio, minimum weight, epicyclic star configuration main reduction gears for the under the wing (UTW) and over the wing (OTW) engines ...
Defeo, A., Kulina, M.
core +1 more source
Temporal Interference Stimulation Enhances Neural Regeneration
Advanced Science, EarlyView.Temporal interference (TI) stimulation is proposed as a non‐invasive approach to enhance neural regeneration in the deep brain. Theta‐band TI modulation selectively promotes neural progenitor cell differentiation in vitro and augments hippocampal neurogenesis in amouse model of Alzheimer's disease‐like amyloidosis.
Sofia Peressotti +15 more
wiley +1 more source
Matching Workers to Jobs in the Fast Lane: the Operation of Fixed-term Contracts [PDF]
In this paper we look at fixed-term contracts and examine the main features of temporary as opposed to regular employment, keeping the focus on employment careers and wage dynamics of workers employed under fixed-term contracts.
José Varejão, Pedro Portugal
core
Evaluation of a high performance, fixed-ratio, traction drive [PDF]
, 1983 A test program was initiated to evaluate the key operational and performance factors associated with the Nasvytis multiroller concept. Two sets of Nasvytis drives, each of slightly geometry, were parametrically tested on a back to back test stand ...
Anderson, N. E. +2 more
core +1 more source
Advanced Science, EarlyView.Lipid metabolic stress triggers ferroptosis in PDLSCs through the GSK3β/NRF2 pathway, thereby aggravating periodontal bone loss. Upregulated GSK3β promotes NRF2 ubiquitination and proteasomal degradation via β‐TrCP, suppressing NRF2 nuclear translocation and antioxidant target expression.
Yuxiao Zhang +11 more
wiley +1 more source
Evaluation of a series hybrid thrust bearing at DN values to three million. 2: Fabrication and testing [PDF]
Results of tests made to determine the experimental performance of a series hybrid bearing are reported. The bearing consists of a 150 mm ball bearing and a centrifugally actuated, conical, fluid film bearing fitting an envelope with an outer radius of ...
Eusepi, M., Winn, L. W.
core +1 more source
A Correlative SICM‐OPM Platform for Surface and Volumetric Imaging in Live Cells
Advanced Science, EarlyView.A multifunctional correlative imaging platform integrating Scanning Ion Conductance Microscopy (SICM) with Oblique Plane Microscopy (OPM) enables simultaneous surface topography, mechanical mapping, and 3D volumetric fluorescence imaging in live cells.
Wenzhi Hong +13 more
wiley +1 more source
An analytical method to predict efficiency of aircraft gearboxes [PDF]
A spur gear efficiency prediction method previously developed by the authors was extended to include power loss of planetary gearsets. A friction coefficient model was developed for MIL-L-7808 oil based on disc machine data. This combined with the recent
Anderson, N. E. +2 more
core +1 more source
Return and Volatility Spillovers Among Major Cotton Markets
Agribusiness, EarlyView.ABSTRACT This study explores return and volatility transmission among major cotton markets. Several events have disrupted cotton supply and demand in recent years, leading to heightened price volatility and significant shifts in market interconnections.
Susmitha Kalli +3 more
wiley +1 more source