نتایج جستجو برای: heavy alkylated benzene

تعداد نتایج: 146432  

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2012
canan uraz süheyda atalay

in this research, the selective oxidation of benzene to maleic anhydride (man) in a fixed-bed reactor was studied. the gas phase catalytic oxidation of benzene was carried outin a laboratory scale fixed bed reactor on the catalysts, which were prepared having two different compositions on silica gel. the effects of temperature, flow rates of benzene and air, and catalyst type on the reaction se...

Journal: :Reaction Chemistry and Engineering 2023

A continuous flow methodology is described which gives α-alkylated ketones in good yields, avoids cryogenic temperatures, excessive exposure to alkyllithiums/alkylhalides, and can be easily continuously scaled-out (to >3 g 45 min).

Journal: :ACM Transactions on Architecture and Code Optimization 2018

Background: Benzene has been classified as group 1 human carcinogens in the environment by the International Agency for Research on Cancer (IARC) mainly because of its ability to cause acute myeloid leukemia (AML). This study was conducted to detect any probable association between urban benzene pollution concentration and occurrence of AML in different regions of Tehran.  Methods: In thi...

احمدی, علیرضا, اعظم, کمال, افضلی راد, مریم, شاه طاهری, سید جمال الدین, هراتی, بهرام, هراتی, علی, کریمی, علی,

Introduction: In recent years, many national and international expert groups have considered specific improvements in risk assessment of chemical pollutants. This study considered to assess the risk of workers exposure to air pollutants in an automobile manufacturing in order to evaluate the health risk assessment due to the inhalation exposure.   Material and Method: To perform this study, ...

امیدی, فریبرز, دهقانی, فاطمه, ذاکریان, سید ابوالفضل, منصورنیا, محمد علی, گلبابایی, فریده,

Introduction: Adverse effects of volatile organic compounds (VOCs) including general and specific effects like carcinogenic of benzene are well known. The aim of this study was to evaluate occupational exposure to BTEX compounds in the painting unit of an automotive industry and subsequently health risk assessment of exposure to these compounds. Material and Method: This cross-sectional stud...

Tadashi Uragami, Takashi Miyata You Matsuoka

This paper focuses on the effects of the addition of an ionic liquid, 1-Allyl-3-butylimidazilium bis(trifluoromethane sulfonyl)imide ([ABIM]TFSI), which has a high affinity for benzene, into the poly(vinyl chloride) (PVC) membrane on the pervaporation characteristics of the removal of benzene from aqueous solutions of dilute benzene. When aqueous solutions of 100~500 ppm benzene were permeated ...

Journal: :Blood 1988
R A De La Cadena F A Baglia C A Johnson R E Wenk R Amernick P N Walsh R W Colman

We have isolated and probed the mechanism of action of two naturally occurring antibodies (Baltimore and Winston-Salem) against factor XI (FXI), that developed in patients congenitally deficient in FXI after replacement therapy. Purification on immobilized protein A and neutralization with monospecific antibodies against IgG heavy and light chain subtypes indicated that both antibodies were of ...

حاجی زاده, یعقوب, عبداله نژاد, علی, محمدی, امیر, مختاری, مهدی, میری, محمد, نیک نظر, حمیده,

Background and purpose: Today use of unleaded gasoline is increasing in the world which contain abundant amount of aromatic organic carcinogenic compounds. This study aimed at monitoring the temporal and spatial concentration of benzene and toluene as volatile organic compounds in ambient air in Yazd, Iran. Materials and methods: This research, was carried out in different hours of the morni...

Journal: :The Journal of biological chemistry 1976
R J Knights A Light

Disulfide 179-203 of trypsinogen was cleaved and the free sulfhydryls were modified by S-carboxymethylation, S-carboxyamidomethylation, or by S-aminoethylation. The enzymatic properties of the activated, modified zymogens toward specific and nonspecific trypsin substrates were studies. The three S-alkylated trypsins hydrolyzed N-benzoylarginine ethyl ester and N-tosyl-lysine methyl ester with K...

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