Results 21 to 30 of about 1,208,813 (315)

Analysis of Antioxidant Phytochemicals and Anti-Inflammatory Effect from Vitex rotundifolia L.f

open access: yesAntioxidants, 2022
An extraction method using 80% EtOH was selected and applied to obtain the total extracts from leaves, flowers, fruits, twigs, and roots of Vitex rotundifolia L.f. based on the antioxidant activity-guided experiments.
DucDat Le   +5 more
doaj   +1 more source

Characteristics of Welding Residual Stress Distribution in Dissimilar Weld Joints

open access: yesMetals, 2022
For the construction of ecofriendly ships, fuels such as liquefied natural gas (LNG), ammonia, and hydrogen are being discussed as alternatives. LNG fuel has recently been applied to shipbuilding.
Gyubaek An   +4 more
doaj   +1 more source

The analytical method for determining the parameters of impulse overvoltages from atmospheric discharges [PDF]

open access: yesBakar
Impulse generators with RC circuits form the foundation for producing surge voltages used in high-voltage equipment testing. In high-voltage engineering literature, the expressions for impulse voltage waveforms include known parameters of lightning or ...
Marković Nenad   +2 more
doaj   +1 more source

Computer-Aided Prediction, Synthesis, and Characterization of Magnetic Molecularly Imprinted Polymers for the Extraction and Determination of Tolfenpyrad in Lettuce

open access: yesFoods, 2023
Tolfenpyrad, a pyrazolamide insecticide, can be effectively used against pests resistant to carbamate and organophosphate insecticides. In this study, a molecular imprinted polymer using tolfenpyrad as a template molecule was synthesized.
Du Chi   +4 more
doaj   +1 more source

Intervening factors in the performance of a naked-eye microemulsification-based method and improvements in analytical frequency

open access: yes, 2021
FAPESP - FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULOAn investigation into the use of different amphiphiles and improvements in the analytical frequency of the microemulsification-based method (MEC) are described.
Higa, Karen M.   +6 more
core   +1 more source

Dynamic Response Analysis of a Fiber-Reinforced Polymer Reinforced Viaduct under Full Scale Moving Maglev Train Load

open access: yesBuildings, 2023
Fiber-reinforced polymers (FRPs) are widely utilized in the construction of bridges all over the world and are thought to be a potential alternative to steel reinforcement, particularly in concrete structures exposed to harsh conditions or the effects of
Ishola Valere Loic Chango   +2 more
doaj   +1 more source

Minimal-Invasive Analytical Method and Data Fusion: an Alternative for Determination of Cu, K, Sr, and Zn in Cocoa Beans

open access: yes, 2021
In the present study, a minimal-invasive analytical method for determination of Cu, K, Sr, and Zn in cocoa beans was performed using energy X-ray fluorescence (EDXRF) and laser-induced breakdown spectroscopy (LIBS) combined with multivariate calibration.
Gamela, Raimundo Rafael   +2 more
core   +1 more source

Methodologies in the Analysis of Phenolic Compounds in Roselle (Hibiscus sabdariffa L.): Composition, Biological Activity, and Beneficial Effects on Human Health

open access: yesHorticulturae, 2021
Roselle (Hibiscus sabdariffa L.), as an edible flower, has long provided an array of positive effects on human health. This benefit is a result of phenolic compounds that are naturally present mainly in the calyx.
Bety W. Hapsari   +2 more
doaj   +1 more source

Determination of methylmercury using liquid chromatography – photochemical vapour generation – atomic fluorescence spectroscopy (LC-PVG-AFS) : a simple, green analytical method [PDF]

open access: yes, 2020
Acknowledgements The authors thank P S Analytical for financial support for the project. In addition, the author would like to thank Dr Nick Ralston for providing the tuna samples used in the method validation, as well as Jonas Kunigkeit and Jasmina ...
Corns, Warren T.   +4 more
core   +1 more source

A digital platform for automated analysis of 1H NMR data: prototype framework of digital reference standard

open access: yesAAPS Open
This study introduces an innovative approach to automatically analyzing 1H nuclear magnetic resonance (NMR) data, integrating a quantum mechanical spectral analysis (QMSA) to enhance efficiency over manual data analysis in NMR.
Sunil Babu Paudel   +5 more
doaj   +1 more source

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