Results 51 to 60 of about 417,251 (262)
Erosion in radial inflow turbines. Volume 4: Erosion rates on internal surfaces [PDF]
An analytic study of the rate at which material is removed by ingested dust impinging on the internal surfaces of a typical radial inflow turbine is presented.
Clevenger, W. B., Jr., Tabakoff, W.
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Synthetic versus biological mesh-related erosion after laparoscopic ventral mesh rectopexy. A systematic review [PDF]
, 2017 Purpose: This review reports the incidence of mesh-related erosion after ventral mesh rectopexy to determine whether any difference exists in the erosion rate between synthetic and biological mesh. Methods: A systematic search of the MEDLINE and the Ovid
Balla, Andrea +5 more
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Advanced Engineering Materials, EarlyView.A carbon‐free, as‐sintered MgO–steel cermet anode, fabricated via cold isostatic pressing using MgO–C refractory recyclate, was evaluated under laboratory‐scale K‐cryolite electrolysis at 800°C. Operation at this reduced temperature, combined with the electrolyte's limited electrical conductivity, led to an increase in cell voltage.
Farhan Hossain +7 more
wiley +1 more source
Centennial- to millennial-scale hard rock erosion rates deduced from luminescence-depth profiles [PDF]
, 2018 The measurement of erosion and weathering rates in different geomorphic settings and over diverse temporal and spatial scales is fundamental to the quantification of rates and patterns of earth surface processes. A knowledge of the rates of these surface
Egholm, David +6 more
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Interaction of Ladle Slag With Varying SiO2 Content and Recyclate‐Based MgO–C Refractories
Advanced Engineering Materials, EarlyView.Ladle slags (CaO/Al2O3 = 1) with 1–20 wt% SiO2 were investigated in contact with industrial MgO–C refractories fabricated from fresh magnesia and 50 wt% recyclate. The sessile drop method at 1600°C reveals intensive gas formation, delayed slag infiltration in recyclate‐based samples, and, under high‐SiO2 slag, formation of a dense MgAl2O4‐rich ...
Anton Yehorov +6 more
wiley +1 more source
Internal erosion rates of a 10-kW xenon ion thruster [PDF]
A 30 cm diameter divergent magnetic field ion thruster, developed for mercury operation at 2.7 kW, was modified and operated with xenon propellant at a power level of 10 kW for 567 h to evaluate thruster performance and lifetime.
Rawlin, Vincent K.
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Changing Internal Labor Markets in Service and Sales Occupations [PDF]
, 1999 [Excerpt] In this paper, I address the question of how deregulation in the telecommunications industry has altered the internal labor market structure of clerical and sales jobs—that is, the traditionally female-dominated operator, service, and sales ...
Batt, Rosemary
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Advanced Engineering Materials, EarlyView.Collagen hydrolysate is evaluated as a sustainable binder for MgO‐C refractories. Its thermally induced cross‐linking and gas release lead to expansion and cracking in large bricks, but tailored batches with lignin, recyclates, or fine graphite improve the gas release while thermal treatment and stability.
Till M. J. Stadtmüller +8 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.This study develops sustainable MgO–C refractories using recycled materials and eco‐friendly fructose–tannin binders. The enhanced performance of citric acid as a cross‐linker and functional additives on mechanical and thermomechanical properties was examined. Characterization included strength tests, immersion trials, and microstructural and inclusion
Dinesh K. Gunasekar +7 more
wiley +1 more source
Measuring the erodibility of soil materials constituting earth embankments: a key input for dams and levees safety assessment [PDF]
, 2009 International audienceEnsuring the safety of hydraulic embankment structures, including embankment dams, levees and dykes, is a major concern all over the world. Still today, about one to two large dams fail every year in the world and hundreds, probably
Benahmed, N. +5 more
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