Results 91 to 100 of about 2,202 (203)
African and Mediterranean Agricultural Journal - Al AwamiaSoil compaction induced by agricultural machinery is widely recognized as a significant challenge in agricultural fields. This study evaluated soil compaction in six no-till vertisol and calcimagnesic field crops at the Chaouia region.
Yassine Almasmoudi +2 more
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Breathers in oscillator chains with Hertzian interactions [PDF]
, 2011 We prove nonexistence of breathers (spatially localized and time-periodic oscillations) for a class of Fermi-Pasta-Ulam lattices representing an uncompressed chain of beads interacting via Hertz's contact forces.
Cuevas, Jesus +2 more
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Energy Science & EngineeringDeep coal‐rock formations are subjected to complex stress environments characterized by high static stresses and dynamic disturbances. To study the damage, fracture, and energy evolution characteristics of coal‐rock under dynamic–static combined loading,
Wei Li +8 more
doaj +1 more source
On the compact wave dynamics of tensegrity beams in multiple dimensions
, 2019 This work presents a numerical investigation on the nonlinear wave dynamics of tensegrity beams in 1D, 2D and 3D arrangements. The simulation of impact loading on a chain of tensegrity prisms and lumped masses allows us to apply on a smaller scale recent
Fraternali, Fernando +2 more
core +1 more source
Redesigned rotor for a highly loaded, 1800 ft/sec tip speed compressor fan stage 1: Aerodynamic and mechanical design [PDF]
A highly loaded, high tip-speed fan rotor was designed with multiple-circular-arc airfoil sections as a replacement for a marginally successful rotor which had precompression airfoil sections. The substitution of airfoil sections was the only aerodynamic
Halle, J. E., Ruschak, J. T.
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Soil susceptibility to compaction under use conditions in southern Brazil
Ciência e AgrotecnologiaThe degree of soil compaction is intensified by its inadequate management, compaction being variable depending on soil type since even under identical management conditions, different types have different abilities to withstand load.
Michael Mazurana +5 more
doaj +1 more source
Rotor redesign for a highly loaded 1800 ft/sec tip speed fan. 1: Aerodynamic and mechanical design report [PDF]
A quasi three dimensional design system and multiple-circular-arc airfoil sections were used to design a fan rotor. An axisymmetric intrablade flow field calculation modeled the shroud of an isolated splitter and radial distribution.
Norton, J. M., Tari, U., Weber, R. M.
core +1 more source
Bayesian approach to classification of football match outcome [PDF]
, 2018 The football match outcome prediction particularly has gained popularity in recent years. It attract lots type of fan from the analyst expert, managerial of football team and others to predict the football match result before the match start.There are ...
Abdul Rahman, Muhammad Haleq Azhar +3 more
core +2 more sources
GeodermaDue to climate change, human activities and natural disturbances in high-latitude permafrost and seasonally frozen areas are gradually increasing, attracting more attention from scholars.
Yuan Zhou +6 more
doaj +1 more source
Seasonal change of soil precompression stress in coffee plantation under sub-humid tropical condition. [PDF]
, 2014 Piero Iori +5 more
openalex +1 more source