Results 31 to 40 of about 590,000 (215)

Extractant efficiency in the solubilization of alternative sources of potassium

open access: yesActa Scientiarum. Agronomy, 2016
Knowledge of a rock’s composition allows for inferences regarding several properties, ranging from its physical characteristics to its solubility. This study aimed to evaluate the use of different extractants to solubilize the K present in rocks as a ...
Daniele Nogueira dos Reis   +4 more
doaj   +1 more source

Calculations of Lyapunov exponents and characterizations of nonlinear dynamics in bulk antiferroelectrics

open access: yesPhysics of Complex Systems, 2023
This paper investigates the influence of the amplitude, frequency, and damping of the applied field on the maximal Lyapunov exponents and chaotic dynamics in the bulk antiferroelectric (AFE) system.
Сью-Чу Лим
doaj   +1 more source

Nucleation Studies on Supersaturated Aqueous Solutions of Ammonium Dihydrogen Phosphate Doped with Ammonium and Potassium Sulfates

open access: yes, 1998
Department of Physics, Scott Christian College, Nagercoil-629 003 Department of Physics, S. T. Hindu College, Nagercoil-629 002 Manuscript received 29 April 1997, accepted 26 June 1997 Induction periods have been measured for various supersaturated ...
C. MAHADEVAN, N. P. RAJESH
core   +1 more source

Optimised Methods for Quantitative Analysis of Solasodine and its Glycoside Solamargine by High Performance Liquid Chromatography

open access: yesSultan Qaboos University Journal for Science, 2013
Improved and simplified HPLC conditions for the determination and quantification of both the steroidal glycoalkaloid (solamargine) and its aglycone (solasodine) are described.
Sana S. Al-Sinani, Elsadig A. Eltayeb
doaj   +1 more source

Digitally Printed Eco‐Friendly Electronic Devices

open access: yesAdvanced Functional Materials, EarlyView.
Fabrication of electronics using eco‐friendly materials through digital printing routes is a promising strategy for improving life cycle sustainability and reducing the environmental impacts of conventional manufacturing. This review highlights state‐of‐the‐art eco‐friendly materials, green ink formulations, various resource‐efficient digital printing ...
Nitheesh M. Nair   +5 more
wiley   +1 more source

Research on optimization of the extraction process and antioxidant activity of anthocyanins from Lycium ruthenicum Murr.

open access: yes四川大学学报. 自然科学版, 2023
To investigate the optimal extraction process and antioxidant activity of anthocyanins of Lycium ruthenicum Murr., the anthocyanins of Lycium ruthenicum Murr.
XUE Hai-Rui   +5 more
doaj  

Effect of Catalysts and Sodium Hydroxide on Glyoxal-treated Wood

open access: yesBioResources, 2014
Treatment of poplar wood using glyoxal as a non-formaldehyde cross-linking reagent was investigated. Cross-linking occurred with glyoxal in the presence of the catalysts aluminum sulfate, magnesium chloride, zinc nitrate, maleic anhydride, ammonium ...
Yutao Yan   +4 more
doaj   +1 more source

Mathematical Modeling of Urea Reaction with Sulfuric Acid and Phosphoric Acid to Produce Ammonium Sulfate and Ammonium Dihydrogen Phosphate Respectively

open access: yesEnergies, 2021
Urea is the final product of protein metabolism in mammals and can be found in different biological fluids. Use of mammalian urine in agricultural production as organic fertilizer requires safe handling to avoid the formation of ammonia that will ...
Juan Carlos Beltrán-Prieto   +1 more
doaj   +1 more source

Spatiotemporal Regulation of Hierarchical Assembly of Hydroxyapatite for Enamel Remineralization

open access: yesAdvanced Science, EarlyView.
Biomimetic repair exhibits unique advantages for enamel regeneration compared with conventional clinical treatments. An enzymatic mineralization system (EMS) is developed, where the resulting HAP nanorods hierarchically assemble into a highly ordered structure on the enamel surface through the spatiotemporal modulation of interfacial energies of ...
Zhenhang Tang   +15 more
wiley   +1 more source

Synergistic Fluoride and Polymer‑Regulated Interfacial Engineering of NiFe‑LDH Anodes for Ampere‑Scale Natural Seawater Electrolysis

open access: yesAdvanced Energy Materials, EarlyView.
Schematic comparison of optimized F–NiFe–LDH and conventional NiFe–LDH electrodes during alkaline natural seawater oxygen evolution. The synergistic (poly)CM protective layer and fluoride‐mediated passivation suppress metal leaching, mitigate chloride‐induced corrosion, and regulate surface reconstruction, preserving catalyst integrity beyond 1000 h ...
Xiang Li   +7 more
wiley   +1 more source

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