Results 61 to 70 of about 384,224 (306)
Design and evaluation of a 3 million DN series-hybrid thrust bearing [PDF]
The bearing, consisting of a 150-mm ball bearing and a centrifugally actuated, conical, fluid-film bearing, was fatigue tested. Test conditions were representative of a mainshaft ball bearing in a gas turbine engine operating at maximum thrust load to ...
Eusepi, M., Scibbe, H. W., Winn, L. W.
core +1 more source
Optical Tests of a 3.7-m diameter Liquid Mirror: Behavior under External Perturbations
, 2001 We have built and tested a 3.7-m diameter liquid mirror that rotates on a ball bearing. We have carried out extensive optical tests. We find that although the ball bearing has a poor quality, the quality of the mirror, with mercury layers 1-mm thick, is ...
Biesel +20 more
core +1 more source
Advanced Healthcare Materials, EarlyView.PCTM microspheres were successfully synthesized using microfluidic and click chemistry techniques.In Vivo and in vitro experiments have shown that PCTM microspheres have obvious targeting, adhesion, membrane penetration and anti‐tumor properties for bladder tumors.The antitumor mechanism of PCTM microspheres is to indirectly induce S‐stage blockage of ...
Zhaoxiang Lu +4 more
wiley +1 more source
Evaluation of a series hybird thrust bearing at DN values to three million. 1: Analysis and design [PDF]
The analysis and design are presented of a hybrid bearing consisting of a 150-mm ball bearing and a centrifugally actuated, conical, fluid film bearing fitting an envelope with an outer radius of 86.4 mm (3.4 in.) and an inner radius of 71 mm (2.8 in ...
Eusepi, M., Gu, A., Winn, L. W.
core +1 more source
Influence of bearing kinematics hypotheses on ball bearing heat generation [PDF]
, 2018 Spindle dynamics is a key issue in machining. Thermo-mechanical models of spindle need to be developed to understand and predict the complex behavior of spindles at high speed.
Furet B. +6 more
core +1 more source
Ti6Al4V‐Bioglass‐Copper Composites for Load‐Bearing Implants
Advanced Healthcare Materials, EarlyView.We have designed and manufactured a novel Ti64‐based composite by adding 45S5 bioglass (BG) and copper (Cu). Adding BG on titanium improves wear resistance and biocompatibility, whereas Cu addition improves mechanical strength while providing inherent lifelong bacterial resistance.
Lochan Upadhayay +3 more
wiley +1 more source
Real‐Time 3D Ultrasound Imaging with an Ultra‐Sparse, Low Power Architecture
Advanced Healthcare Materials, EarlyView.This article presents a novel, ultra‐sparse ultrasound architecture that paves the way for wearable real‐time 3D imaging. By integrating a unique convolutional array with chirped data acquisition, the system achieves high‐resolution volumetric scans at a fraction of the power and hardware complexity.
Colin Marcus +9 more
wiley +1 more source
Friction performance of 3D printed ball bearing: Feasibility study
Results in Physics, 2018 3D printing provides the advantage of the capability to manufacture a wide range of geometric models without constraint and using various materials. Owing to the recent rapid development of 3D printing technologies, manufacturing accuracy has also been ...
Yeong-Jae Lee +2 more
doaj +1 more source
Apparatus and method for inspecting a bearing ball [PDF]
, 1985 A method and apparatus for inspecting the surface of a ball bearing is disclosed which includes a base having a high friction non-abrasive base scanning surface. A holding device includes a cone-shaped cup recess in which a ball element is received.
Bankston, B. F.
core +1 more source
Guest‐Induced Activation of Multicolor Photoluminescence in Naphthalene Bisimide Liquid Crystals
Advanced Materials, EarlyView.Supramolecular host–guest design in naphthalene bisimide liquid crystals activates charge‐transfer emission and enables continuous tuning of color (511–685 nm) and lifetime, spanning prompt fluorescence, TADF, and RTP. Electron‐rich guests and Pt(II) complexes modulate emissive states, while co‐assembled NBI complexes create an energy‐transfer cascade ...
Johannes Nowarra +3 more
wiley +1 more source