نتایج جستجو برای: environment kinetics

تعداد نتایج: 611964  

ژورنال: سلامت و محیط زیست 2013
رحمانی, علیرضا, شیرزاد سیبنی, مهدی, عسگری, قربان, فرخی, مهرداد,

Background and Objectives: Dyes are one of the main environmental pollutants in the industrial effluents including textile industries, which are harmful for human health and environment. The purpose of this research was to investigate removal efficiency of Reactive Black 5 (RB5) dye using adsorption onto strongly basic anion exchange resin as an appropriate adsorbent. Materials and Methods: Af...

2001
Andrzej Plonka

Chemical reactions proceeding on time-scales comparable to or shorter than those of internal rearrangements in the reaction system renewing the environment of reactants (mixing) are, in general, dispersive. For dispersive kinetics, as for dispersive transport and dispersive relaxation, many time-scales coexist, and the rate coefficients, termed the specific reaction rates, depend on time. In cl...

ژورنال: طلوع بهداشت یزد 2016
احرامپوش, محمد حسن, دهقانی, علی, طباطبایی, معصومه, قانعیان, محمدتقی, نفیسی, محمدرضا,

Introduction: A variety of pesticides is used to combat weeds. Check-resistant residues of contaminants in drinking water resources have detrimental effects on human health and on environment. In recent years, advanced oxidation methods o remove toxins from the environment, particularly the aquatic environment is further considered. Methods: In this study, samples adding different concentrat...

In this work, kinetics and thermodynamics of esterification reaction were studied. This research investigated the esterification reaction between methanol and acidified oil catalyzed by sulfonated cation exchange resin and proposed a new rate equation for consideration of kinetics of this reaction according to the Langmuir-Hinshelwood mechanism. Thermodynamics and kinetics parameters were calcu...

2012
Jinpeng Qi Yongsheng Ding Tao Gong Ying Lin

To illustrate the different kinetics of cellular self-repair mechanism under external perturbations from outer environment, a mathematical model of DNA damage repair process is proposed by using the Kinetic Theory of Active Particles (KTAP) framework. The profile of cellular self-repair process is represented by two sub-populations, each of which is made up of the active particles with differen...

2004
Irene Georgakoudi Nicolas Solban John Novak William L. Rice Xunbin Wei Tayyaba Hasan Charles P. Lin

The fate of circulating tumor cells is an important determinant of their ability to form distant metastasis. Here, we demonstrate the use of in vivo flow cytometry as a powerful new method for detecting quantitatively circulating cancer cells. We specifically examine the circulation kinetics of two prostate cancer cell lines with different metastatic potential in mice and rats. We find that the...

Journal: :Cancer research 2004
Irene Georgakoudi Nicolas Solban John Novak William L Rice Xunbin Wei Tayyaba Hasan Charles P Lin

The fate of circulating tumor cells is an important determinant of their ability to form distant metastasis. Here, we demonstrate the use of in vivo flow cytometry as a powerful new method for detecting quantitatively circulating cancer cells. We specifically examine the circulation kinetics of two prostate cancer cell lines with different metastatic potential in mice and rats. We find that the...

2016
Jesper Edberg Donata Iandolo Robert Brooke Xianjie Liu Chiara Musumeci Jens Wenzel Andreasen Daniel Simon Drew Evans Isak Engquist Magnus Berggren Jens Wenzel Daniel T. Simon

We demonstrate a novel patterning technique of conductive polymers produced by vapor phase polymerization. The method involves exposing an oxidant film to UV light which changes the local chemical environment of the oxidant and subsequently the polymerization kinetics. This procedure is used to control the conductivity in the conjugated polymer poly(3,4ethylenedioxythiophene):tosylate (PEDOT:To...

Afshin Maleki, Behzad Shahmoradi, Hiua Daraei, Mahdi Safari, Pegah Bahmani, Reza Rezaee, Roya Ebrahimi, Shivaraju Harkaranahalli Puttaiah Yahya Zandsalimi

Dyes are an important class of pollutants which when discharged into water resources can be toxic to the aquatic environment and cause serious problems for public health. Various treatment technologies such as adsorption are in use. For this reason, clinoptilolite was used as a low-cost adsorbent to remove color from aqueous solution. Clinoptilolite was modified with sulfuric and phosphoric aci...

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