Results 21 to 30 of about 122,840 (290)

Assessment of field fluorometers

Water Science and Technology, 2014
Two field fluorometers, devoted either to natural organic matter (NOM) or to tryptophan-like fluorescing substances, were tested for the characterization of a large set of water samples (n = 263) impacted to various degrees by untreated or poorly treated urban sewage. Both fluorometers yielded consistent results when testing discrete samples.
A, Gutierrez, Y, Zhang, A, Assaad, X, France, N, Adouani, M N, Pons   +5 more
openaire   +2 more sources

Feasibility of surveying pesticide coverage with airborne fluorometer [PDF]

, 1970
Response of a Fraunhofer line discriminator (FLD) to varying distributions of granulated corncobs stained with varying concentrations of Rhodamine WT dye was tested on the ground and from an H-19 helicopter.
Hemphill, W. R., Stoertz, G. E.
core   +2 more sources

In situ Measurements of Phytoplankton Fluorescence Using Low Cost Electronics

Sensors, 2013
Chlorophyll a fluorometry has long been used as a method to study phytoplankton in the ocean. In situ fluorometry is used frequently in oceanography to provide depth-resolved estimates of phytoplankton biomass.
Dana L. Wright, Thomas Leeuw, Emmanuel S. Boss   +2 more
doaj   +1 more source

A novel, low-cost microfluidic device with an integrated filter for rapid, ultrasensitive, and high-throughput bioburden detection

Scientific Reports, 2023
Rapid and accurate bioburden detection has become increasingly necessary for food, health, pharmaceutical and environmental applications. To detect bioburden accurately, and in a highly sensitive manner, we have fabricated a novel microfluidic device ...
Md. Sadique Hasan, Chad Sundberg, Michael Tolosa, Abhay Andar, Xudong Ge, Yordan Kostov, Govind Rao   +6 more
doaj   +1 more source

Rapid toxicity assessment of six antifouling booster biocides using a microplate-based chlorophyll fluorescence in Undaria pinnatifida gametophytes [PDF]

, 2020
Biocides of antifouling agents can cause problems in marine ecosystems by damaging to non-target algal species. Aquatic bioassays are important means of assessing the quality of water containing mixtures of contaminants and of providing a safety standard
Choi, Soyeon, Depuydt, Stephen, Han, Taejun, Lee, Hojun, Park, Jihae   +4 more
core   +2 more sources

Diagnosis of Induced Resistance State in Tomato Using Artificial Neural Network Models Based on Supervised Self-Organizing Maps and Fluorescence Kinetics

Sensors, 2022
The aim of this study was to develop three supervised self-organizing map (SOM) models for the automatic recognition of a systemic resistance state in plants after application of a resistance inducer. The pathosystem Fusarium oxysporum f. sp.
Xanthoula Eirini Pantazi, Anastasia L. Lagopodi, Afroditi Alexandra Tamouridou, Nathalie Nephelie Kamou, Ioannis Giannakis, Georgios Lagiotis, Evangelia Stavridou, Panagiotis Madesis, Georgios Tziotzios, Konstantinos Dolaptsis, Dimitrios Moshou   +10 more
doaj   +1 more source

Physical oceanography [PDF]

, 1992
The physical oceanography component of the AMLR program provides information on the hydrography of the upper water column with the objective of assessing its influence on the observed distribution of krill (Euphausia superba).
Amos, Anthony F., Heimann, J. K., Lavender, Margaret   +2 more
core   +1 more source

Subsurface chlorophyll maxima reduce the performance of non-photochemical quenching corrections in the Southern Ocean

Frontiers in Marine Science
Non-photochemical quenching (NPQ) within phytoplankton cells often causes the daytime suppression of chlorophyll fluorescence in the Southern Ocean. This is problematic and requires accurate correction when chlorophyll fluorescence is used as a proxy for
Kimberlee Baldry, Peter G. Strutton, Peter G. Strutton, Peter G. Strutton, Nicole A. Hill, Nicole A. Hill, Philip W. Boyd, Philip W. Boyd   +7 more
doaj   +1 more source

Barnyardgrass control using tank-mixed herbicides with saflufenacil and its influence in photosynthesis and chlorophyll fluorescence

Ciência Rural
: The objectives of this research were to evaluate the interaction between herbicides mixed with saflufenacil for the control of barnyardgrass and to determine the effect on photosynthetic and chlorophyll fluorescence parameters.
Cassiano Salin Pigatto, Camila Peligrinotti Tarouco, Fernando Teixeira Nicoloso, Álvaro Luis Pasquetti Berghetti, Glauco Pacheco Leães, Isabel Schlegel Werle, André da Rosa Ulguim   +6 more
doaj   +1 more source

Efeito do hexazinone isolado e em mistura na eficiência fotossintética de Panicum maximum Effect of hexazinone applied alone and in combination on the photosynthetic efficiency of Panicum maximum

Planta Daninha, 2012
Esta pesquisa teve como objetivo avaliar a velocidade e intensidade de ação do hexazinone isolado e em mistura com outros inibidores do fotossistema II, através da eficiência fotossintética de Panicum maximum em pós-emergência.
M. Girotto, R. Araldi, E.D. Velini, M.L.B. Trindade, C.A Carbonari   +4 more
doaj   +1 more source