Results 31 to 40 of about 1,018,273 (298)

Estimation of Biomass and N Uptake in Different Winter Cover Crops from UAV-Based Multispectral Canopy Reflectance Data

Remote Sensing, 2022
Cover crops are known to provide beneficial effects to agricultural systems such as a reduction in nitrate leaching, erosion control, and an increase in soil organic matter. The monitoring of cover crops’ growth (e.g., green area index (GAI), nitrogen (N)
Katja Holzhauser, Thomas Räbiger, Till Rose, Henning Kage, Insa Kühling   +4 more
doaj   +1 more source

SrAlSi4N7:Eu2+ [PDF]

, 2009
The new nitridoalumosilicate phosphor SrAlSi4N7:Eu2+ has been synthesized under nitrogen atmosphere at temperatures up to 1630°C in a radio-frequency furnace starting from Sr metal, α-Si3N4, AlN, and additional Eu metal. The crystal structure of the host
Baumann, Verena, Hecht, Cora, Schmedt auf der Günne, Jörn, Schmidt, Peter J., Schnick, Wolfgang, Stadler, Florian   +5 more
core   +1 more source

A test of time-dependent theories of stellar convection [PDF]

, 2011
Context: In Cepheids close to the red edge of the classical instability strip, a coupling occurs between the acoustic oscillations and the convective motions close to the surface.The best topical models that account for this coupling rely on 1-D time ...
B. Dintrans, Baker, Bono, Bono, Brandenburg, Buchler, Böhm-Vitense, Dintrans, Dintrans, Feuchtinger, Gastine, Gastine, Gastine, Gehmeyr, Gehmeyr, Gough, Kolláth, Kuhfuß, Pesnell, Smolec, Stellingwerf, T. Gastine, Unno, Vitense, Wuchterl, Yecko   +25 more
core   +1 more source

Identification of Rice Sheath Blight through Spectral Responses Using Hyperspectral Images

Sensors, 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, Sen Guo, Changwei Tan, Xingen Zhou, Dongyan Zhang   +4 more
doaj   +1 more source

Antlia Dwarf Galaxy: Distance, quantitative morphology and recent formation history via statistical field correction [PDF]

, 2011
We apply a statistical field correction technique originally designed to determine membership of high redshift galaxy clusters to Hubble Space Telescope imaging of the Antlia Dwarf Galaxy; a galaxy at the very edge of the Local Group.
Abraham, Abraham, Aparicio, Barnes, Bershady, Blitz, Canny, Conselice, Conselice, Conselice, Conselice, Conselice, Corwin, Da Costa, Dalcanton, De Lucia, Dolphin, Drinkwater, Farage, Ferguson, Frayn, Frei, Förster, Glasser, Grebel, Grebel, Gregg, Guo, Hambleton, Harris, Holwerda, Holwerda, Holwerda, Ibata, Iben, Jobin, Kent, Kevin A. Pimbblet, Koleva, Krist, Law, Lee, Lee, Lewis, Lisker, Lotz, Lotz, Lotz, Lotz, Lotz, Madore, Martin, Marzke, Mateo, McQuinn, Moore, Mould, Méndez, Pasetto, Petrosian, Piersimoni, Pimbblet, Pimbblet, Radburn-Smith, Rizzi, Robin, Romaniello, Rudnick, Ryś, Sakai, Sarajedini, Sharina, Tanaka, Tolstoy, Tully, Urquhart, van den, van Dokkum, Wake, Warrick J. Couch, Weisz, White, Whiting, Whiting, Wirth   +84 more
core   +1 more source

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

Proceedings 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, Martin Jürise, Jaanus Kaugerand, Raivo Sell   +3 more
doaj   +1 more source

Defect chemistry of Ti and Fe impurities and aggregates in Al2O3 [PDF]

, 2014
We report a theoretical evaluation of the properties of iron and titanium impurities in sapphire (corundum structured α-Al2O3). Calculations using analytical force fields have been performed on the defect structure with the metals present in isolated, co-
Bristow, JK, Parker, SC, Tiana, D, Walsh, A   +3 more
core   +3 more sources

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

Plants, 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, Se Sil Hong, Hye Rin Hwang, Sun Hee Hong, Sang-in Shim   +4 more
doaj   +1 more source

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

Energies, 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, Szymon Sobura, Renata Stoińska   +2 more
doaj   +1 more source

Action spectrum for reorientations in bacteriorhodopsin of purple membrane in suspension

Scientific 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