Results 41 to 50 of about 403,539 (285)

Application of planar laser-induced fluorescence measurement techniques to study the heat transfer characteristics of parallel-plate heat exchangers in thermoacoustic devices [PDF]

, 2010
This paper describes the development of an experimental arrangement and the application of acetone-based planar laser-induced fluorescence (PLIF) measurement techniques to study the unsteady characteristics of heat transfer processes in the parallel ...
Artur J Jaworski, Mao, X, Jaworski, Arthur J., Shi, L, Shi, Lei, Jaworski, AJ, Xiaoan Mao, Lei Shi, Mao, Xiaoan   +8 more
core   +1 more source

Ultrafast Growth of h-MoO₃ Microrods and Its Acetone Sensing Performance

Surfaces, 2020
Hexagonal molybdenum trioxide (h-MoO3) was synthesized by microwave-assisted hydrothermal method, allowing an ultrafast growth of unidimensional microrods with well-faceted morphology. The crystalline structure of this metastable phase was confirmed by X-
Giovana T. Santos, Anderson A. Felix, Marcelo O. Orlandi   +2 more
doaj   +1 more source

Bleaching of chlorophylls by UV irradiation in vitro: The effects on chlorophyll organization in acetone and n-hexane [PDF]

Journal of the Serbian Chemical Society, 2008
The stability of chlorophylls toward UV irradiation was studied by Vis spectrophotometry in extracts containing mixtures of photosynthetic pigments in acetone and n-hexane.
Zvezdanović Jelena, Marković Dejan
doaj   +1 more source

Metabolism Determination By Soft Computing Methods From Breath Molecules

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2022
The breath analysis is a non-invasive risk-free and painless method used to diagnose specific diseases. Since the breath analysis method is a new study field than the other methods, there are many unsettled standards and unknown parameters.
Hatice Akman, Sedat Metlek, Ismail Bayraklı   +2 more
doaj   +1 more source

Comparação de métodos diretos de extração e quantificação dos teores de clorofilas em folhas do capim-Tifton 85 Comparison of direct methods of extraction and chlorophyll contents quantification in leaves of Tifton 85 bermudagrass

Ciência Rural, 2010
O objetivo deste estudo foi verificar qual é o melhor protocolo para extração das clorofilas a, b e total (a + b) a ser aplicado em estudos com a gramínea forrageira Tifton 85 (Cynodon spp.). Os resultados revelaram que os melhores extratores, tomando-se
Élio Barbieri Junior, Roberto Oscar Pereyra Rossiello, Mirton José Frota Morenz, Roberta Cristiane Ribeiro   +3 more
doaj   +1 more source

Phytochemical constituent and oxidative potencies of acetone, methanol and aqueous leaf extracts of Acalypha Wilkesiana grown at the Kaura Namoda plant nursery

The Proceedings of the Nigerian Academy of Science, 2022
As a result of increased interest in the production of plant-based drugs for the treatment of many diseases has become a significant reason why people have become more coversant in the use of traditional medicine for the treatment of mild and serious ...
Hassan A. Bamidele, Ahmed A. Abass, Tanko O. Hussaina   +2 more
doaj   +1 more source

Temporal Profiles of Volatile Organic Compounds near the Houston Ship Channel, Texas

Atmosphere
Houston, Texas, with its large-scale industrial activities, serves as a national hub for petrochemical processing and chemical feedstock production, making it a unique emission region for volatile organic compounds (VOCs) and production-related emissions.
Meghan Guagenti, Sujan Shrestha, Manisha Mehra, Subin Yoon, Mackenzie T. S. Ramirez, James H. Flynn, Sascha Usenko   +6 more
doaj   +1 more source

Xerogel Solvothermal in Different Alcohols of Cu and N Codoped TiO2 Powders: Characterization Photocatalytic Oxidation of Acetone

Medžiagotyra, 2018
In this study, mesoporous Cu and N co-doped TiO2 crystals were synthesized with Cu and N co-doped titania xerogel by solvothermal treatment in different alcohols and the characteristics of Cu and N co-doped TiO2 were investigated with XRD, SEM, UV-vis ...
Cui Ping LIU, Tao YU, Xin TAN
doaj   +1 more source

1-Butyl-3-Methylimidazolium Tetrafluoroborate Film as a Highly Selective Sensing Material for Non-Invasive Detection of Acetone Using a Quartz Crystal Microbalance

Sensors, 2017
Breath acetone serves as a biomarker for diabetes. This article reports 1-butyl-3-methylimidazolium tetrafluoroborate ([bmim][BF4]), a type of room temperature ionic liquid (RTIL), as a selective sensing material for acetone.
Wenyan Tao, Peng Lin, Sili Liu, Qingji Xie, Shanming Ke, Xierong Zeng   +5 more
doaj   +1 more source

Revalorization of Olive Stones from Olive Pomace: Phenolic Compounds Obtained by Microwave-Assisted Extraction

Agronomy
Olive stones (OS) are a by-product of great interest from olive oil mills and the table olive industry due to their high content of phenolic compounds.
Alicia Castillo-Rivas, Paloma Álvarez-Mateos, Juan Francisco García-Martín   +2 more
doaj   +1 more source