Results 31 to 40 of about 444,092 (166)

Predictive Model of Granular Fertilizer Spreading Deposition Distribution Based on GA-GRNN Neural Network

open access: yesDrones
In this paper, we investigate the particle deposition distribution characteristics in granular fertilizer spreading, establish a relationship model between operational parameters and particle deposition distribution, and design an unmanned aerial vehicle
Lilian Liu   +6 more
doaj   +1 more source

Shear Lag in Reinforced Concrete T-Beams with Web Openings [PDF]

open access: yesEngineering and Technology Journal, 2016
In this paper, an extensive study is carried out 18 beams on the behavior of T-beams (8 with web openings, 10 without openings). Compressive strains distribution at the flanged are investigated with the presence of the openings in web to recheck the ...
Eyad Kadhum Sayhood   +2 more
doaj   +1 more source

Effective width of steel-concrete composite box girder bridges: a review and method comparison

open access: yesActa Scientiarum: Technology, 2023
Steel-concrete composite girders have non-uniform stress distribution on the slab, presenting maximum stresses next to the webs of the girder. This phenomenon is known as shear lag effect. To understand this effect, there is the effective width concept,
Renato Silva Nicoletti   +2 more
doaj   +1 more source

Restoring sediment continuity in large regulated rivers: a 2D-informed 1D morphodynamic framework applied to the Hungarian Danube

open access: yesFrontiers in Environmental Science
Sustainable sediment management in large, regulated rivers requires modelling tools that can reliably predict long-term morphological trends while remaining computationally efficient for scenario testing. This study presents a simplified one-dimensional (
Sándor Baranya
doaj   +1 more source

Optimization-Design and Atomization-Performance Study of Aerial Dual-Atomization Centrifugal Atomizer

open access: yesAgriculture, 2023
The aerial atomizer is the most essential component of the plant protection UAV (unmanned aerial vehicle). However, the structural optimization of existing aerial atomizers lacks comprehensive consideration of spray parameters and structural parameters ...
Zhou Yang   +4 more
doaj   +1 more source

The Effect of Laser Beam on the Width of the Cut

open access: yesJournal of Physics: Conference Series
Abstract Conventional methods of dividing material due to their limitation to straight cuts have largely been replaced by non-conventional cutting methods, which include laser cutting. Laser cutting of polymer materials has become a priority for the manufacturing industry, mainly due to the constantly growing demand for these materials ...
Knedlová, Jana   +4 more
openaire   +2 more sources

Prediction of Effective Width of Varying Depth Box-Girder Bridges Using Convolutional Neural Networks

open access: yesAdvances in Civil Engineering, 2022
Effective flange width is widely used in bridge design to consider the effect of shear lag. The simplified formula for the effective flange width of box girder bridges of variable depth in existing codes and studies may not be conservative, and accurate ...
Kejian Hu, Xiaoguang Wu
doaj   +1 more source

Effect of Fans’ Placement on the Indoor Thermal Environment of Typical Tunnel-Ventilated Multi-Floor Pig Buildings Using Numerical Simulation

open access: yesAgriculture, 2022
An increasing number of large pig farms are being built in multi-floor pig buildings (MFPBs) in China. Currently, the ventilation system of MFPB varies greatly and lacks common standards.
Xiaoshuai Wang   +8 more
doaj   +1 more source

Finite width effects in top quark decays [PDF]

open access: yesPhysics Letters B, 1995
Motivated by evidence that the top quark mass lies near the $bWZ$ threshold, we compute the decay rate for $t\rightarrow bWZ$ in the Standard Model, including the effects of the finite widths of the $W$ and $Z$ bosons. In the limit where the width effects are negligible, our results disagree with previously published calculations.
MAHLON, Gregory, PARKE, Stephen
openaire   +2 more sources

Surface effect on domain wall width in ferroelectrics [PDF]

open access: yesJournal of Applied Physics, 2009
We study the effect of the depolarization field on a domain wall structure near the surface of a ferroelectric. Since in real situation bound and screening charges form an electric double layer, the breaking of this layer by the domain wall induces stray depolarization field, which in turn changes the domain wall structure. Power law decay of the stray
Eliseev, Eugene A.   +7 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy