Results 21 to 30 of about 38,300 (288)

Stereoscopic plant-protection system integrating UAVs and autonomous ground sprayers for orchards

open access: yesFrontiers in Plant Science, 2022
For orchard plant protection, conventional large machines and small sprayers are practically restricted by either narrow planting intervals with dense leaves or their inadequate penetration power, which leads to an unsatisfactory effect of spray.
Shijie Jiang   +6 more
doaj   +1 more source

Plot size and number of replications for ryegrass experiments [PDF]

open access: yesCiência Rural, 2020
: The objective of this research was to determine the optimal plot size and the number of replications to evaluate the fresh matter of ryegrass sown to haul.
Marcos Toebe   +6 more
doaj   +1 more source

Oligosaccharides Affect Performance and Gut Development of Broiler Chickens [PDF]

open access: yesAsian-Australasian Journal of Animal Sciences, 2013
The effects of oligosaccharide supplementation on the growth performance, flock uniformity and GIT development of broiler chickens were investigated. Four diets, one negative control, one positive control supplemented with zinc-bacitracin, and two test ...
Z. Ao, M. Choct
doaj   +1 more source

The neural basis of the uniformity illusion

open access: yes, 2023
Although the spatial resolution and color sensitivity are much limited in our peripheral vision compared with the central vision, we still seem to have a rich conscious experience of the scene outside.
Yijun Ge, Hakwan Lau
core   +1 more source

Design and Prototyping of Efficient LED Counter Beam Light with Free-Formed Surface for Meeting International Tunnel Lighting Standards

open access: yesEnergies, 2021
An LED Counter Beam Light (CBL) with a free surface secondary lens is proposed to enhance the safety and efficiency of tunnels. The secondary lens was designed and produced to be mounted on a 50 W white-light LED array to generate the targeted counter ...
Hsing-Yuan Liao   +9 more
doaj   +1 more source

Tamanho de parcelas em experimentos com trigo irrigado sob plantio direto e convencional Plot size in experiments with wheat irrigated under no-tillage and conventional tillage

open access: yesPesquisa Agropecuária Brasileira, 2004
O objetivo deste trabalho foi estimar o tamanho da parcela para avaliação da produtividade de grãos de trigo, sob condições irrigadas, em sistema de plantio direto e convencional.
Diolino Henriques Neto   +6 more
doaj   +1 more source

Retrofitting ancient timber glulam mortise & tenon construction joints through computer-aided laser cutting

open access: yesHeliyon, 2020
This study is aimed to rationalise and demonstrate the efficacy of utilising laser cutting technique in the fabrication of glulam mortise & tenon joints in timber frame.
Zhaoxi Zhan   +3 more
doaj   +1 more source

Assessment of Various Uniformity Aspects under Surface Drip Irrigation System in Tomato

open access: yes, 2023
Background: Water in any form is the prime constitute of plant growth and development. Right amount of water applied at right time and in right quantity to any crop will helpful to get maximum yield potential of that crop.
Desai , K. D.   +3 more
core   +1 more source

A new framework for evaluation of rock fragmentation in open pit mines

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2019
The main purpose of blasting in open pit mines is to produce the feed for crushing stage with the optimum dimensions from in situ rocks. The size distribution of muck pile indicates the efficiency of blasting pattern to reach the required optimum sizes ...
Mohammad Babaeian   +4 more
doaj   +1 more source

Performance of jundiá larvae, Rhamdia quelen, fed on probiotic supplemented diets

open access: yesActa Scientiarum: Animal Sciences, 2015
Since probiotics have proved to be a viable alternative to antibiotics as enhancers of animal growth, the performance, uniformity and mortality rates of the jundiá (Rhamdia quelen) larvae fed on diets with different probiotics were evaluated.
Vilson Borba Pinto   +5 more
doaj   +1 more source

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