Results 21 to 30 of about 8,773,435 (248)

Identification of Rice Sheath Blight through Spectral Responses Using Hyperspectral Images

open access: yesSensors, 2020
Sheath blight (ShB), caused by Rhizoctonia solani AG1-I, is one of the most important diseases in rice worldwide. The symptoms of ShB primarily develop on leaf sheaths and leaf blades.
Fenfang Lin   +4 more
doaj   +1 more source

COMSPECT: a compact model for green vegetation reflectance spectra in the 400–900 nm wavelength range [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2020
A compact empirical model for approximate description of green vegetation reflectance (GVR) spectra in the visible and near infrared wavelength range from 400 to 900 nm is proposed.
Andres Udal   +3 more
doaj   +1 more source

Effect Analysis of Hydrogen Peroxide Using Hyperspectral Reflectance in Sorghum [Sorghum bicolor (L.) Moench] under Drought Stress

open access: yesPlants, 2023
Due to global climate change, adverse environments like drought in agricultural production are occurring frequently, increasing the need for research to ensure stable crop production.
Ki Eun Song   +4 more
doaj   +1 more source

Application of Multispectral Images from Unmanned Aerial Vehicles to Analyze Operations of a Wastewater Treatment Plant

open access: yesEnergies, 2023
The main task of a wastewater treatment plant (WWTP) is to reduce pollutants that adversely affect the receiving environment in which the effluent is discharged. The operation of a WWTP is a complex task due to the number of different processes that take
Bartosz Szeląg   +2 more
doaj   +1 more source

Weighted RED (WTRED) strategy for TCP congestion control [PDF]

open access: yes, 2011
This work presents the Weighted Random Early Detection (WTRED) strategy for congestion handling in TCP networks. The strategy dynamically adjusts RED's maximum threshold, minimum threshold and weight parameters to increase network performance.
Murray, D.   +7 more
core   +1 more source

Action spectrum for reorientations in bacteriorhodopsin of purple membrane in suspension

open access: yesScientific Reports, 2023
In the present study, the dependency of purple membrane (PM) dielectric responses on the wavelength of light in the range 380–750 nm has showed meaningful changes about the rotation of PM in suspension and about the rotation of bacteriorhodopsin (bR ...
Hamdy I. A. Mostafa
doaj   +1 more source

Potato Late Blight Detection at the Leaf and Canopy Levels Based in the Red and Red-Edge Spectral Regions

open access: yesRemote Sensing, 2020
Potato late blight, caused by Phytophthora infestans, is a major disease worldwide that has a significant economic impact on potato crops, and remote sensing might help to detect the disease in early stages.
Claudio Ignacio Fernández   +4 more
doaj   +1 more source

Remote sensing of grassland with contaminated soil using the spectral red-edge

open access: yes, 2009
In most cases contaminants are concealed in soil and under vegetation and therefore cannot be measured directly by remote sensing. However, soil contaminants were detectedusing the spectral red-edge to indicate vegetation stress caused by the presence ...
Llewellyn, Gary Michael
core   +2 more sources

Evalaution and optimization of laser cutting parameters for plywood materials [PDF]

open access: yes, 2013
Laser process parameters influence greatly the width of kerfs and quality of the cut edges. This article reports experiments on the laser plywood-cutting performance of a CW 1.5 kW CO2¬ Rofin laser, based on design of experiments (DOE).
Alrashed, K.   +12 more
core   +2 more sources

Estimation of Canopy Structure of Field Crops Using Sentinel-2 Bands with Vegetation Indices and Machine Learning Algorithms

open access: yesRemote Sensing, 2022
Leaf angle distribution (LAD), or the leaf mean tilt angle (MTA) capturing its central value, is used to quantify the direction of the leaf surface in a canopy and is one of the most important canopy structuraltraits.
Xiaochen Zou, Sunan Zhu, Matti Mõttus
doaj   +1 more source

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