Results 11 to 20 of about 48,286 (256)

Study of Surface Tension and Surface Properties of Non-Ideal Binary Liquid Mixtures [PDF]

open access: yesشیمی کاربردی روز, 2014
In this research, surface tension and surface properties of binary mixtures of water with a series of aliphatic carboxylic acids (C1-C4)were investigated by different models at temperature range between (288.15 and 328.15) K.
Ahmad Bagheri, Kolsoum Alizadeh
doaj   +1 more source

Comparative analysis of Activated Corn Cob and Bentonite Clay for the Removal of Lead and Nickel from Raw Water

open access: yesSlovak Journal of Civil Engineering, 2021
The extensive use of commercial activated carbon as an adsorbent for the purification of industrial effluent is not economical for small and medium-sized enterprises due to its high operational cost.
Akomah Uchechi   +3 more
doaj   +1 more source

Role of the Number of Adsorption Sites and Adsorption Dynamics of Diffusing Particles in a Confined Liquid with Langmuir Kinetics

open access: yesPhyschem, 2022
In this work, we investigate the effect of the number of available adsorption sites for diffusing particles in a liquid confined between walls where the adsorption (desorption) phenomena occur.
Renato F. de Souza   +6 more
doaj   +1 more source

Observations of narrow bipolar events reveal how lightning is initiated in thunderstorms

open access: yesNature Communications, 2016
How lightning is initiated inside storms has been a long-standing and fundamental question. Here, the authors report observations of a previously unrecognized type of discharge, called fast positive breakdown, that is found to initiate many and ...
William Rison   +7 more
doaj   +1 more source

The study of direct dye sorption on flax fibers during dyeing [PDF]

open access: yesChemical Industry and Chemical Engineering Quarterly, 2021
This article presents the study of direct dye sorption onto the flax fiber during the dyeing process in the presence of an inorganic electrolyte. The previously prepared linen fabric was subjected to dyeing by a standard process, varying in concentration
Vučković Nemanja   +2 more
doaj   +1 more source

Poveda-Balbuena, Miguel Luis, and José Belda-Medina. 2023. Armamento medieval inglés (1100–1500): Estudio lingüístico-histórico. Granada: Comares. Pp. 148. ISBN 9788413695983.

open access: yesSELIM
Book review of Poveda-Balbuena, Miguel Luis, and José Belda-Medina. 2023. Armamento medieval inglés (1100–1500): Estudio lingüístico-histórico. Granada: Comares. Pp. 148. ISBN 9788413695983.
Christopher Langmuir
doaj   +3 more sources

On Langmuir’s periodic orbit [PDF]

open access: yesArchiv der Mathematik, 2022
Niels Bohr successfully predicted in 1913 the energy levels for the hydrogen atom by applying certain quantization rules to classically obtained periodic orbits. Many physicists tried to apply similar methods to other atoms. In his well-known 1921 paper, I.~Langmuir established numerically the existence of a periodic orbit in the helium atom considered
K. Cieliebak   +2 more
openaire   +2 more sources

Removal of Reactive Red 120 Azo dye from Aqueous Solution with Magnetic Nanoparticles Coated with Chitosan [PDF]

open access: yesشیمی کاربردی روز, 2020
In this research, the magnetic nanoparticles coated with chitosan have been used to remove the reactive red 120 azo dye from aqueous solution. Chitosan is one of the most well-known biopolymers that can be used as adsorbent for the removal of color ...
Zahra Hejri, Ali Hasani, Ali Davoudi Rad
doaj   +1 more source

Fast negative breakdown in thunderstorms

open access: yesNature Communications, 2019
Recent studies have shown that lightning is initiated by a newly-recognized discharge process called fast positive breakdown. Here, the authors present observational evidence of fast breakdown but of negative polarity, seemingly contrary to current ...
Julia N. Tilles   +8 more
doaj   +1 more source

Physical characterization and kinetic studies of Zn (II) biosorption by Morganella morganii ACZ05

open access: yesWater Science and Technology, 2022
Through this investigation, we establish the mechanism and physical characterization of zinc (II) sequestration by Morganella morganii ACZ05 strain, which was isolated and characterized from soil polluted by effluents from electroplating industries.
D. Ramya   +4 more
doaj   +1 more source

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