Results 71 to 80 of about 2,408 (240)
Journal of Quaternary Science, EarlyView.ABSTRACT The timing and spatial patterns of glaciers retreat in the Northern French Alps during the Lateglacial (19.0–11.7 ka) remain debated, reflecting discrepancies among available chronological data sets. The complex interactions between major glaciers, such as the Rhône and Arve glaciers to the north and the Isère glacier to the south, represent a
Quentin Portal +3 more
wiley +1 more source
Study on the Distribution of Cycloidal Gear Forming Grinding Temperature Field
Jixie chuandong, 2018 In the precision machining process of high precision RV reducer cycloid gear tooth surface,the grinding wheel is included in the tooth groove,and most of the grinding can be converted into thermal energy,causing the temperature of grinding zone to rise ...
Ke Qingxun +3 more
doaj
Kuangchan zonghe liyongCoal gasification slag is a solid by-product produced by the coal gasification process, which has certain utilization value but is difficult to complete separation.
Ruifeng CHEN +4 more
doaj +1 more source
Elaboration of principles for developing technological systems for the finishing of gears
Mechanics and Advanced Technologies, 2019 The service properties of gears are mainly formed at the stages of their finishing processing, such as gear grinding, gear shaving, final dimensional calibration, gear honing, smoothing, lapping, burn-in, etc.
Yuriy Danylchenko, Michael Storchak
doaj +1 more source
Grinding Burn Prediction by Sensor Data in Generating Gear Grinding
Abstract Continuous generating grinding is a highly productive process for hard finishing gears to meet quality and surface integrity standards. Due to its abrasive characteristics and the resulting significant material deformation, the process requires substantial energy per volume of material removed.
Mariana Mendes Wilfinger +3 more
openaire +1 more source
Land Degradation &Development, EarlyView.ABSTRACT Straw return (SR) and controlled‐release nitrogen fertilizers application can improve soil structure, enhance soil water retention, and promote crop growth. However, the mechanisms through which SR and controlled‐release nitrogen fertilizers application jointly modulate soil physical and chemical properties remain unclear.
Min An +7 more
wiley +1 more source
Study on Gear Broken Tooth in Fatigue Test of High Power Transfer Case
Jixie chuandong, 2017 In the multi-axis super-heavy-duty test platform,the high-power transfer case has the problem of broken teeth during fatigue endurance. The comprehensive analysis is carried out on the failure gears,the causes of gear damage,such as gear strength,shaft ...
Ge Kai +7 more
doaj
Refining techniques for high‐frequency monitoring of chlorophyll a fluorescence in estuarine systems
Limnology and Oceanography: Methods, EarlyView.Abstract Concentrations of the photosynthetic pigment chlorophyll a are commonly used as a proxy for phytoplankton biomass in aquatic systems. Traditional methods for extracting chlorophyll a in discrete samples limit measurement frequency, while in situ sensor technology provides high frequency chlorophyll a fluorescence measurements at a more ...
Nicole Dix +10 more
wiley +1 more source
MATEC Web of Conferences, 2018 In the present work the receiving of gypsum products on the basis of a calcium sulfate dihydrate is described. As a raw material, the calcium sulfate dihydrate in the form of industry waste was used.
Petropavlovskaya Victoria +4 more
doaj +1 more source
Polycarbonate Vitrimers and Dynamic Co‐Networks From Epoxide/Carbon Dioxide Copolymerization
Macromolecular Rapid Communications, EarlyView.This work demonstrates how CO2‐derived poly(propylene carbonate) and poly(cyclohexene carbonate) backbones influence vitrimer thermo‐mechanical behavior. By tuning backbone composition, epoxide crosslinker chemistry and blend ratios, the crosslinked materials span a wide property window, from highly extensible to stiff, glassy networks, establishing an
Satej S. Joshi +3 more
wiley +1 more source