Results 71 to 80 of about 19,469 (232)
Lubrication and cooling for high speed gears [PDF]
The problems and failures occurring with the operation of high speed gears are discussed. The gearing losses associated with high speed gearing such as tooth mesh friction, bearing friction, churning, and windage are discussed with various ways shown to ...
Townsend, D. P.
core +1 more source
BMEMat, EarlyView.This paper summarized the application of 3D bioprinting in the regeneration of various tissues in the oral and craniomaxillofacial fields, including the required biomaterials and printing techniques. Abstract Oral and craniomaxillofacial tissues are essential for maintaining oral functions, including respiration, mastication, swallowing, and speech ...
Huilu Zhan +7 more
wiley +1 more source
Analysis and Experimental Investigation of Oil Jet Flow of Main Reducer Gear based on Flowmaster
Jixie chuandong, 2017 The influence on oil jet flow in nozzle of lubrication system for the main reducer is researched based on the one- dimensional Flowmaster fluid simulation,a more comprehensive and accurate analysis model is put forward.
Yin Zhimin, Liu Shaojun
doaj
Biological Reviews, EarlyView.ABSTRACT Oropharyngeal food processing exhibits a remarkable diversity among vertebrates, reflecting the evolution of specialised ‘processing centres’ associated with the mandibular, hyoid, and branchial arches. Although studies have detailed various food‐processing strategies and mechanisms across vertebrates, a coherent and comprehensive terminology ...
Daniel Schwarz +6 more
wiley +1 more source
Into Mesh Lubrication of Spur Gears with Arbitrary Offset Oil Jet. I: For Jet Velocity Less than or Equal to Gear Velocity [PDF]
An analysis was conducted for into mesh oil jet lubrication with an arbitrary offset and inclination angle from the pitch point for the case where the oil jet velocity is equal to or less than pitch line velocity.
Akin, L. S., Townsend, D. P.
core +1 more source
Advances in Triboelectric Nanogenerators With Rotating Structure
Carbon Energy, EarlyView.The rotating TENG has been widely studied for its superiorities of simple structure, high efficiency, and stable output. This review introduced the four different principles of rotating TENG and offered a thorough summary for performance and application research through three‐level classification. Importantly, the current existing problems, challenges,
Chuguo Zhang +4 more
wiley +1 more source
Lubrication and performance of high-speed rolling-element bearings [PDF]
Trends in aircraft engine operating speeds have dictated the need for rolling-element bearings capable of speeds to 3 million DN. A review of high-speed rolling-element bearing state-of-the-art performance and lubrication is presented. Through the use of
Coe, H. H. +2 more
core +1 more source
Revisiting acidulation for tall oil and lignin manufacturing
The Canadian Journal of Chemical Engineering, EarlyView.Abstract Tall oil is a byproduct of the kraft pulping process when softwood is used as raw material. As the production of softwood‐based pulp is in high demand, the optimization of the tall oil production process needs to be revisited to ensure the highest quality and quantity of tall oil manufacturing. In this work, the process for tall oil production
Thomas Aro, Weijue Gao, Pedram Fatehi
wiley +1 more source
NASA helicopter transmission system technology program [PDF]
, 1983 The purpose of the NASA Helicopter Transmission System Technology Program is to improve specific mechanical components and the technology for combining these into advanced drive systems to make helicopters more viable and cost competitive for commerical ...
Zaretsky, E. V.
core +1 more source
All the bedrooms a stage: Reconceptualizing sex as “performance” to sex as “rehearsal”
Feminist Anthropology, EarlyView.Abstract In the United States, sex is often spoken about in terms of performance, and naturally invokes language of theatricality. Sexual performance has been used as an umbrella term to refer to sexual satisfaction, behavior, embodiment, and also pathology in terms of conditions such as erectile dysfunction.
Taylor Harmon
wiley +1 more source