Results 11 to 20 of about 1,005,462 (289)

The Heavy Quark Form Factors at Two Loops [PDF]

open access: yes, 2017
We compute the two-loop QCD corrections to the heavy quark form factors in case of the vector, axial-vector, scalar and pseudo-scalar currents up to second order in the dimensional parameter $\epsilon = (4-D)/2$.
Ablinger, J.   +7 more
core   +1 more source

Biosorption of dicloxacillin from pharmaceutical waste water using tannin from Indian almond leaf: Kinetic and equilibrium studies

open access: yesBiotechnology Reports, 2020
This study focused on the use of Indian almond leaf biomass, a local plant widely found in Thailand, on removal of dicloxacillin from pharmaceutical waste water by biosorption.
Niti Sunsandee   +3 more
doaj   +1 more source

Modeling of sorption kinetics: the pseudo-second order equation and the sorbate intraparticle diffusivity [PDF]

open access: yesAdsorption, 2013
The applicability of the pseudo-second order equation (PSOE) has been explained on the ground of the model assuming that the overall sorption rate is limited by the rate of sorbate diffusion in the pores of sorbent (intraparticle diffusion model). Mathematical expressions have been proposed in order to describe the dependence of the pseudo-second order
Plazinski, Wojciech   +2 more
openaire   +1 more source

Removal of Metals by Biomass Derived Adsorbent in Its Granular and Powdered Forms: Adsorption Capacity and Kinetics Analysis

open access: yesSustainable Chemistry, 2022
Among the various existing metals, zinc and copper are predominant metals in several effluents from industries such as electroplating, plastics production and mining.
Ana Beatriz Soares Aguiar   +4 more
doaj   +1 more source

Kinetic model for the sorption of copper ions onto sugar beet shreds [PDF]

open access: yesHemijska Industrija, 2014
Adsorption kinetics is of great significance to evaluate the performance of adsorption process. The kinetics of copper ions adsorption onto different sized sugar beet shreds has been considered.
Brdar Mirjana M.   +3 more
doaj   +1 more source

Kinetics of scandium recovery by TVEX-TBP from the solution formed after the salt chlorinator cake leaching [PDF]

open access: yesE3S Web of Conferences, 2020
Kinetics of scandium recovery by TVEX containing tributyl phosphate was studied from the clarified leaching solution of salt chlorinator cake. To assess the contribution of each diffusion phase, experimental data were analyzed using a graphic method.
Korovin Vadym   +4 more
doaj   +1 more source

A Revised Pseudo-Second-Order Kinetic Model for Adsorption, Sensitive to Changes in Adsorbate and Adsorbent Concentrations

open access: yesLangmuir, 2021
The development of new adsorbent materials for the removal of toxic contaminants from drinking water is crucial toward achieving the United Nations Sustainable Development Goal 6 (clean water and sanitation). The characterization of these materials includes fitting models of adsorption kinetics to experimental data, most commonly the pseudo-second ...
Bullen, Jay   +3 more
openaire   +5 more sources

Discrete Weighted Pseudo Asymptotic Periodicity of Second Order Difference Equations

open access: yesDiscrete Dynamics in Nature and Society, 2014
We define the concept of discrete weighted pseudo-S-asymptotically periodic function and prove some basic results including composition theorem. We investigate the existence, and uniqueness of discrete weighted pseudo-S-asymptotically periodic solution ...
Zhinan Xia
doaj   +1 more source

Adsorption of Bromothymol Blue (BTB) Dye Using Four Zeolites as Adsorbent [PDF]

open access: yesKemija u Industriji, 2021
This study examined adsorption of anionic dye on four zeolitic materials incorporated (VS-1, CuZSM-5) and not incorporated into metals (S-1, ZSM-5).
Affaf Tabti   +4 more
doaj   +1 more source

The Variational Principle for the Uniform Acceleration and Quasi-Spin in Two Dimensional Space-Time [PDF]

open access: yes, 2008
The variational principle and the corresponding differential equation for geodesic circles in two dimensional (pseudo)-Riemannian space are being discovered.
Matsyuk, Roman Ya.
core   +4 more sources

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