Results 81 to 90 of about 125,970 (301)
Metalurgija, 2023 The shearer cutting drum plays an important role in improving the mining efficiency of the coal mine. Starting from the basic theoretical mechanics, this paper analyzes the force on the shearer cutting drum of a certain model, establishes the ...
J. Xue, Y. Gao, L. Y. Huang, T. Q. He
doaj
Effect of Oxygen Content on Surface and Subsurface Integrity During Turning of Ti–6Al–4V
Advanced Engineering Materials, EarlyView.This study examines how oxygen content in the ambient atmosphere affects the surface and subsurface properties of Ti–6Al–4V during turning. Results show that oxygen does not influence surface roughness. However, machining in an extremely high vacuum‐adequate atmosphere increases surface hardness by up to 7.8% and induces compressive residual stresses ...
Benjamin Bergmann +3 more
wiley +1 more source
Design of Wireless Monitoring System of Shearer
Gong-kuang zidonghua, 2010 In order to obtain parameters of running state of shearer accurately, a design scheme of wireless monitoring system of shearer was proposed. The wireless sensor nodes with specific-function are installed on appointed part of shearer frame,which are used ...
TAN Chao, ZHOU Xin, JI Xiao-gang
doaj
Advanced Engineering Materials, EarlyView.Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth +6 more
wiley +1 more source
The role of multiple intelligences (MI) in listening proficiency [PDF]
, 2007 Not many studies have so far quantitatively investigated the role of Multiple Intelligences (MI) in language teaching and almost no research has explored the role of MI in listening proficiency.
Mahdavy, Babak
core
An Algorithmic Proof of the Lovasz Local Lemma via Resampling Oracles
, 2015 The Lovasz Local Lemma is a seminal result in probabilistic combinatorics. It gives a sufficient condition on a probability space and a collection of events for the existence of an outcome that simultaneously avoids all of those events.
Harvey, Nicholas, Vondrak, Jan
core +1 more source
Effect of Laser Deoxidation on Adhesive‐Bonded Aluminum in an Oxygen‐Free Atmosphere
Advanced Engineering Materials, EarlyView.This study investigates laser ablation of aluminum under oxygen‐free conditions. The goal is to produce oxide‐free substrates that enable improved adhesive bonding with epoxy. Optimized laser parameters (90% overlap, 300 µJ) combined with oxide‐free substrates result in the highest tensile strength of the adhesive bond.
Sandra Gerland +5 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm +5 more
wiley +1 more source
Jixie qiangdu, 2019 According to shearer vibration problems in the practical work,using multi-body dynamics theory,considering the connection characteristics between walking unit of shearer and scraper conveyor,the support characteristics of adjustment height oil vat,the ...
MAO Jun +3 more
doaj
A new type of terminal operation station for shearer
Gong-kuang zidonghua, 2016 For problems of single shearer control function existed in most terminal operation stations for shearer and single displaying form existed in a few productions, a new type of terminal operation station for shearer with true color graphic display function
ZHAO Ming, QIU Jinbo
doaj +1 more source