نتایج جستجو برای: iron concentration

تعداد نتایج: 512828  

Journal: :journal of membrane science and research 0
e. bagheripour department of chemical engineering, faculty of engineering, arak university, arak 38156-8-8349, iran a.r. moghadassi department of chemical engineering, faculty of engineering, arak university, arak 38156-8-8349, iran s.m. hosseini department of chemical engineering, faculty of engineering, arak university, arak 38156-8-8349, iran m. nemati department of chemical engineering, faculty of engineering, arak university, arak 38156-8-8349, iran

in this study, a mixed matrix polyethersulfone/iron-nickel oxide nanoparticle nanofiltration membrane was prepared by the solution casting technique. polyvinylpyrrolidone was also used as a membrane pore former in membrane fabrication. the effect of iron-nickel oxide nanoparticles concentration in the casting solution on the membrane structure and performance was investigated. scanning optical ...

In this research, the amount of Iron removal by bioleaching of a kaolin sample with high iron impurity with Aspergillus niger was optimized. In order to study the effect of initial pH, sucrose and spore concentration on iron, oxalic acid and citric acid concentration, more than twenty experiments were performed. The resulted data were utilized to train, validate and test the two layer artificia...

ژورنال: سلامت و محیط زیست 2010
سردار, مهدیه, شیخ محمدی, امیر, ضرابی, منصور, محمدی, حامد, یزدانبخش, احمد رضا,

Backgrounds and Objectives: A great part of organic compounds cause more pollution in natural  waters meet, are chemical dye material. Azo dyes have more usage in different industries. Azo dyes not only give undesirable dye to the water but also have mutation potential and carcinogenesis effects in human and cause the production of toxic substances in water environments.The purpose of this stud...

2012
Sandra Herlufsen Daniel Macdonald Karsten Bothe Jan Schmidt

We report on measurements of the interstitial iron concentration in boron-doped crystalline silicon by measuring the dissociation rate of iron-boron pairs using a camera-based photoluminescence setup (dynamic Fei imaging). This approach enables us to identify the interstitial iron concentration without measuring absolute values of the carrier lifetime and without knowing the recombination prope...

Journal: :مدیریت خاک و تولید پایدار 0
فهیمه خرمی زاده انجمن علوم خاک ایران ناصر دواتگر استادیار پژوهش و ریاست موسسه تحقیقات برنج کشور/ موسسه تحقیقات برنج کشور محمد مهدی طهرانی استادیارپژوهش، گروه خاکشناسی/ مؤسسه تحقیقات خاک و آب کرج وحیدرضا قاسمی دهکردی استادیارپژوهش، گروه خاکشناسی/ مؤسسه تحقیقات خاک و آب کرج ابراهیم اسعدی اسکویی کارشناس ارشد هواشناسی کشاورزی/ اداره هواشناسی گیلان

iron is an essential nutrients in rice. accurate assessment of this element in paddy soils is very important. improving fertility management, accurate interpolation, being aware of spatial variability and patterns of distribution of micronutrients are the most important factors in soil management and accurate consumption of fertilizers. this study was done for investigating of available iron, d...

Journal: :iranian journal of blood and cancer 0
somaye kalanaky alireza farsinejad saeede fakharzade mohammad ali karbasian morteza keshavarz azim mehrvar

abstract background: iron overload is a clinical consequence of repeated blood transfusions and causes significant organ damage, morbidity, and mortality in the absence of proper treatment. the primary targets of iron chelators used for treating transfusional iron overload are the prevention of iron ingress into tissues and its intracellular scavenging. the present study was aimed at elucidatin...

ژورنال: توسعه آبزی پروری 2022

Increasing development of nanotechnology and the production of nanostructured materials have led to many nanoparticles enter into the environment. Iron oxide nanoparticles are one of the most widely used nanomaterial that their widespread application has been accompanied with concern. The purpose of this study was to evaluate the iron bioaccumulation and histopathology in the muscle, skin and s...

2007
Yongmin Ma Zudong Liu Robert C Hider Frank Petrat

The present study introduces a method for determining the labile iron pool (LIP) in human lymphocytes. It is measured using the probe CP655, the fluorescence of which is stoichiometrically quenched by the addition of iron. The intracellular CP655 fluorescence in lymphocytes was quenched by increasing intracellular iron concentrations using the highly lipophilic 8-hydroxyquinoline iron complex. ...

Journal: :Plant physiology 1983
G Sandmann R Malkin

Cultures of the blue-green alga, Aphanocapsa, were grown under iron-limiting conditions and changes in concentration of redox components of the photosynthetic electron transport chain, particularly iron-sulfur centers, were monitored by spectroscopic methods. A moderate iron depletion (1/10 of the normal concentration) had little effect on photosynthetic electron transport reactions and growth....

2017
Emily M. Teshome Pauline E. A. Andang’o Victor Osoti Sofie R. Terwel Walter Otieno Ayşe Y. Demir Andrew M. Prentice Hans Verhoef

BACKGROUND We aimed to show the non-inferiority of home fortification with a daily dose of 3 mg iron in the form of iron as ferric sodium ethylenediaminetetraacetate (NaFeEDTA) compared with 12.5 mg iron as encapsulated ferrous fumarate in Kenyan children aged 12-36 months. In addition, we updated a recent meta-analysis to assess the efficacy of home fortification with iron-containing powders, ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید