Results 71 to 80 of about 99,391 (316)

a) Langmuir isotherm b) Freundlich isotherm c) Tempkin isotherm d) D-R isotherm e) Harkin-Jura isotherm and f) Hasley isotherm for Cr(VI) biosorption by MSR4 strain (initial Cr(VI) concentration: 25–100 mg/L, biomass dosage: 2g/L, pH: 2.0, temperature: 27°C. [PDF]

open access: yes, 2015
a) Langmuir isotherm b) Freundlich isotherm c) Tempkin isotherm d) D-R isotherm e) Harkin-Jura isotherm and f) Hasley isotherm for Cr(VI) biosorption by MSR4 strain (initial Cr(VI) concentration: 25–100 mg/L, biomass dosage: 2g/L, pH: 2.0, temperature ...
Evy Alice Abigail M (704699)   +2 more
core   +1 more source

The impact of binary water-CO2 isotherm models on the optimal performance of sorbent-based direct air capture processes. [PDF]

open access: yes, 2021
Direct air capture (DAC) is an auspicious technology in pursuing negative CO2 emissions. A promising process is temperature vacuum swing adsorption (TVSA) employing amine functionalised adsorbents such as Lewatit® VP OC 1065, which is selected as a ...
John, Young   +3 more
core   +1 more source

Experimental investigation of titanium dioxide as an adsorbent for removal of Congo red from aqueous solution, equilibrium and kinetics modeling

open access: yesJournal of Water Reuse and Desalination, 2020
The adsorption of Congo red onto titanium dioxide (TiO2) material has been investigated at batch conditions. The effects of contact time (0–60 min), initial pH (3–11), agitation speed (100–500 rpm), temperature (298–343 K), adsorbent dosage (0.5–2 g/L ...
Moussa Abbas
doaj   +1 more source

Adsorption isotherm on ferrites

open access: yesCommunications, Faculty Of Science, University of Ankara Series B Chemistry and Chemical Engineering, 1994
Tlıe corrosion behaviour of the prepared Materials was studied by mcans of weight-loss techniquc in stagnant solution of (0.01 M) sulphuric acid in presence of thiourea as an inhibitor. Higher concentration of thiourea reduces the corrosion rate of thc samples and proteetion effi- cicncy of thiourea was found to be 80 % for ferrites Proteetion is ...
A. M. NASSAR   +3 more
openaire   +3 more sources

Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb   +6 more
wiley   +1 more source

Langmuir isotherm and Freundlich isotherm parameters of Pb(II) removal onto Pb(II)-IMB, NIMB, IMA. [PDF]

open access: yes, 2019
Langmuir isotherm and Freundlich isotherm parameters of Pb(II) removal onto Pb(II)-IMB, NIMB, IMA.
Jiecan Yi (6519119)   +8 more
core   +1 more source

Removal of Ammonia from the Municipal Waste Treatment Effluents using Natural Minerals

open access: yesMolecules, 2019
Due to various ecological problems, it is required to remove the ammonia nitrogen from wastewater. Industrial wastewater that was not subjected to any purification was used in this study, while most processes described in the literature were carried out ...
Przemysław Seruga   +5 more
doaj   +1 more source

Discrete isothermic surfaces. [PDF]

open access: yesJournal für die reine und angewandte Mathematik (Crelles Journal), 1996
Discrete isothermic surfaces are defined as the maps \(F: \mathbb{Z}^2\to \mathbb{R}^3\) such that all elementary quadrilaterals of the surface have cross ratio \(-1\). It is shown that these discrete surfaces possess properties which are characteristic for smooth isothermic surfaces (Möbius invariance, dual surface).
Pinkall, Ulrich, Bobenko, Alexander
openaire   +1 more source

Fostering Innovation: Streamlining Magnetocaloric Materials Research by Digitalization

open access: yesAdvanced Engineering Materials, EarlyView.
Magnetocaloric cooling (MCE) is an environmentally friendly refrigeration method with great potential. Optimizing MCE materials involves the preparation and screening of large quantities of samples, which in turn generates a large amount of data. A digitalization approach is presented that uses ontologies, knowledge graphs, and digital workflows to ...
Simon Bekemeier   +17 more
wiley   +1 more source

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

open access: yesAdvanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova   +2 more
wiley   +1 more source

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