نتایج جستجو برای: ekr

تعداد نتایج: 107  

Journal: :Processes 2022

In the present study, assessment of heavy metal contaminant migration from fresh mine tailings was conducted using electrokinetic remediation technique (EKR). this sense, a pilot EKR cell designed to evaluate recovery potential copper, nickel, and cobalt species. particular, focus on impacts electric field intensity pH in initial mixture testing their interaction migration. Experiments were mad...

2011
NORIHIDE TOKUSHIGE

What is the maximal size of k-uniform r-wise t-intersecting families? We show that this problem is essentially equivalent to determine the maximal weight of non-uniform r-wise t-intersecting families. Some EKR type examples and their applications are included.

Journal: :Organic & biomolecular chemistry 2015
Jeiely G Ferreira Cleverson R Princival Dyego M Oliveira Renata X Nascimento Jefferson L Princival

Internal bis-substituted propargylic diols were subjected to enzymatic kinetic resolution promoted by CAL-B. Employing a two round sequence EKR, mono- and bis-acetoxy propargylic products were obtained in a high enantiomeric ratio (E > 200). The efficiently resolved chiral 8b was applied in a concise synthesis of (S)-1b, an optically active natural product produced by fungi Clitocybe catinus.

Journal: :Journal of Combinatorial Theory, Series A 2007

Journal: :Journal of applied science and environmental management 2023

A lot of work has shown that despite the effectiveness traditional electrokinetic remediation (EKR) technology in decontaminating soils with different types and amounts contaminants, it can be enhanced by a number strategies for extra effective performance. This presents effect ethanol acetone cosolvents enhancing EKR crude oil contaminated soil (COCS), collected at depth 1 m from petroleum pip...

جباروند بهروز, محمود, جعفر زاده, ابراهیم, خباز خوب, مهدی, دهنوی, زهرا, میرزاجانی, علی,

Background and Objective: Proper method and machine for corneal evaluation is an important factor in many anterior segment interventions. This study was performed to compare the mean keratometry (K) readings obtained with an IOL Master and Pentacam for intraocular lens power calculation in normal subjects with no history of refractive surgery. Materials and Methods: Mean K values were obtained ...

Journal: :Ajalooline Ajakiri. The Estonian Historical Journal 2013

2016
Kexiang Liu Tao Huang Xiao Huang Lin Yu Faheem Muhammad Binquan Jiao Dongwei Li

This present paper was focused on the manufacture of activated carbon (AC) and its application in the electrokinetic remediation (EKR) technology on removal of the heavy metals (HMs) from the municipal solid waste incineration fly ash. AC was produced from Neosinocalamus affinis (NF) by chemical activation with H3PO4 in N2 atmosphere, the effects of activation temperatures, soaking time and imp...

Journal: :Journal of Marine Science and Engineering 2022

The electrokinetic remediation (EKR) method has been extensively considered for the removal of inorganic pollutants from contaminated dredged sediment. In addition, use chelating agents as electrolyte solutions beneficial in increasing mobility metals. This study investigated metals’ (Cd, Cr, Cu, Pb, and Zn) mobilities by assessing effect two environmentally friendly agents, ethylenediaminedisu...

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