Results 81 to 90 of about 2,430,413 (334)

Experiment and Dynamic Characteristic Analysis of Double Pitch Time Sharing Meshing Silent Chain

Jixie chuandong, 2016
In order to improve the transportation performance and reliability of chain conveyor,based on the silent chain meshing mechanism,a double pitch time sharing meshing silent chain is designed,and the related design parameters are given. Base on the ADAMS,a
Ding Song, Yang Shuchen, Zhang Xiaoqi, Gu Dongwei, Shao Guiyang, Jiang Donglin   +5 more
doaj  

Fault Prediction of Double Toothed Roller Crusher Failure in Open Pit Mines Based on Digital Twinning Technique of ASL-CatBoost Algorithm

IEEE Access
The bearings of double toothed roller crushers in open pit mines are prone to failure during prolonged operation, resulting in reduced productivity and shortened equipment life.
Pubo Gao, Sihai Zhao
doaj   +1 more source

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

Advanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff, Finn‐Lennard Janthur, Sascha Zimmermann, Sarah Seffer, Jörg Hermsdorf, René Gustus, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Christian Klose   +9 more
wiley   +1 more source

Development of Performance, Physiological and Technical Capacities During a Six-Month Cross-Country Skiing Talent Transfer Program in Endurance Athletes

Frontiers in Sports and Active Living, 2020
Purpose: To examine the development of performance, physiological and technical capacities as well as the effect of sport background among runners, kayakers and rowers when transferred to cross-country (XC) skiing over a 6-month training period.Methods ...
Rune Kjøsen Talsnes, Rune Kjøsen Talsnes, Tor-Arne Hetland, Xudan Cai, Xudan Cai, Øyvind Sandbakk   +5 more
doaj   +1 more source

Resistance Rapid Heating of Aluminum Coatings in an Extreme High Vacuum–Adequate Atmosphere for Hot Stamping

Advanced Engineering Materials, EarlyView.
The subject of this work is the development of a corrosion‐protective coating on steel sheets for form hardening. Rapid heating in an extreme high vacuum (XHV)‐adequate atmosphere is a useful method to prevent oxidation during alloying of 22MnB5 and aluminum to obtain a metallurgical bonding.
Lorenz Albracht, Alexander Schnettger, Ulrich Holländer, Sven Hübner, Bernd‐Arno Behrens, Hans Jürgen Maier   +5 more
wiley   +1 more source

Contact Load Calculation Models for Finite Line Contact Rollers in Bearing Dynamic Simulation Under Dry and Lubricated Conditions

Lubricants
The key to exploring the behavior of bearings through dynamic methods lies in establishing an accurate model for calculating the contact load between the roller and the raceway.
Yongxu Hu, Liu He, Yan Luo, Andy Chit Tan, Cai Yi   +4 more
doaj   +1 more source

Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy

Advanced Engineering Materials, EarlyView.
This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb, Zachary T. Kloenne, Samuel R. Rogers, Chi Hang Dominik Kwok, Mark C. Hardy, Michele S. Conroy, David Dye   +6 more
wiley   +1 more source

PECULIARITIES OF FINAL POLISHING OF ROLLERS WITH BARREL-TYPE SURFACE

Наука и техника, 2006
Calculations of average radii of barrel-type roller curvature in different longitudinal sections of rollers have been given in the paper. Due to the difference in a radius the cutting process is discontinuous along contact lines for every double stroke ...
G. P. Krivko, D. A. Cherey
doaj   +1 more source

An experimental investigation of the separating/reattaching flow over a backstep [PDF]

This progress report covers the grant period from March until the end of January 1993. Extensive data reduction and analysis of single and two-point measurements for a backward-facing experiment were performed.
Jovic, Srboljub
core   +1 more source

Development of Mining Technology and Equipment for Seafloor Massive Sulfide Deposits [PDF]

, 2016
Seafloor massive sulfide(SMS) deposits which consist of Au, Ag, Cu, and other metal elements, have been a target of commercial mining in recent decades.
Hengling, Yang, Jianhua, Hu, Ruiqiang, Zhang, Shaojun, Liu, Yu, Dai   +4 more
core   +1 more source