Results 31 to 40 of about 66,577 (304)

Simulation of low rigidity part machining applied to thin-walled structures [PDF]

open access: yes, 2010
The aim of this study is to evaluate the modelling of machining vibrations of thin-walled aluminium work- pieces at high productivity rate. The use of numerical simulation is generally aimed at giving optimal cutting conditions for the precision and the ...
Arnaud, Lionel   +4 more
core   +4 more sources

Effects of ploughing depth on decomposition of barley straw in organically managed soil [PDF]

open access: yes, 2006
Litterbag were used to study the effects of different ploughing depths on decomposition rate of barley straw with different ploughing depths. The burying depth of the litter (13 vs 25 cm) affected the decomposition rate of barely straw more than the ...
Hansen, Sissel   +3 more
core  

Influence of Carbon Nanoparticles on Electrically Induced Wear of Grease‐Lubricated Steels

open access: yesAdvanced Materials Interfaces, EarlyView.
When an electric current enters a pair of rubbing surfaces, enormous damage takes place. In this research, how such damage occurs in the presence of protective grease and the mitigation with added carbon nanoparticles, were investigated. It was discovered that those particles regulate transport and interfacial electrical stability of the grease ...
Mohammad Humaun Kabir   +6 more
wiley   +1 more source

The Perennial Grain Crop Thinopyrum intermedium (Host) Barkworth & D.R. Dewey (Kernza™) as an Element in Crop Rotations: A Pilot Study on Termination Strategies and Pre-Crop Effects on a Subsequent Root Vegetable

open access: yesAgriculture, 2021
Intermediate wheatgrass (IWG) may benefit soil fertility in crop rotations. To investigate termination strategies, i.e., autumn ploughing (AP), autumn harrowing (AH) and spring harrowing (SH) on a five-year-old IWG stand, a pilot study was performed ...
Linda-Maria Dimitrova Mårtensson   +2 more
doaj   +1 more source

Nitrous oxide emissions from organic farming: the importance of well-timed ley cultivation [PDF]

open access: yes, 2006
The period after ploughing of grass-clover within a ley-arable rotation is when nitrogen accumulated during ley cropping is most vulnerable to loss. I investigated how date of ploughing and date of cessation of grazing before ploughing influenced losses ...
Ball, B C
core  

Anti‐Slip Material‐Based Strategies and Approaches

open access: yesAdvanced Materials Technologies, EarlyView.
This review highlights the principle mechanisms of slipping at the microscale, linking contact mechanics with a friction behavior model for surface interfaces. Main strategies to develop anti‐slip properties to the surfaces are discussed alongside standardized testing approaches.
Sogand Abbaspoor‐Zanjani   +3 more
wiley   +1 more source

Conventional Tillage Effects on the Physico-Chemical Properties and Organic Matter of Chernozems Using 13C-NMR Spectroscopy

open access: yesAgronomy, 2022
In this study, we examined the influence of long-term conventional tillage on the water-physical, chemical properties, and composition of the organic matter of chernozems. The study has been conducted on an arable plot subjected to water and wind erosion
Azamat Suleymanov   +4 more
doaj   +1 more source

Influence of mouldboard ploughing and shallow tillage on soil physical properties and crop performance [PDF]

open access: yes, 2012
This study was conducted in spring 2011 in a long-term field experiment with the objective of assessing the effect of shallow tillage and mouldboard ploughing on some soil physical properties and crop performance.
Parvin, Nargish
core   +1 more source

Toward Next‐Generation High‐Speed Communication and Imaging: Solution‐Processed Sb2(S,Se)3/CdS Heterojunction for Ultrafast Self‐Powered Photodetector

open access: yesAdvanced Science, EarlyView.
A high‐quality solution‐processed Sb2(S,Se)3/CdS heterojunction is designed to overcome the intrinsic limitations of conventional photodetectors. The fabricated device achieves an excellent self‐powered performance, including a high responsivity of 0.6 A W−1, an ultrahigh specific detectivity of 7.68 × 1012 Jones, and a wide 3db bandwidth of 175 kHz ...
Xuhua Xiao   +6 more
wiley   +1 more source

Problems and perspectives of archaeological heritage management in intensively used agricultural landscapes - best-practice models from Saxony (Germany) [PDF]

open access: yesPlural: History, Culture, Society, 2017
Nowhere else is there a creeping and slow destruction of archaeological monuments as in intensively used agricultural landscapes. Sites are still degraded by erosion, cultivation and pollutant inputs to the soil.
Strobel, Michael
doaj  

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