نتایج جستجو برای: fe and zn concentrations respectively 035

تعداد نتایج: 16866233  

2012
G. Qiu X. Feng M. S. Landis N. Liu

Twelve hours integrated PM2.5 samples collected with a Weekly Air Particulate Sampler (URG Model 2000-01J) from September 2008 to November 2008 in Guiyang, China, were analyzed on the Kevex energy dispersive x-ray spectrometer (XRF) for elements. Monitoring results found elevated concentrations of heavy metals (Ti, Mn, Fe, Zn, and Pb) in PM2.5 in Guiyang. The average concentrations were 30±22 n...

A.H. Hamidian, A.R. Mirzajani M. Karami

The bioaccumulations of metals Cu, Cd, Ni, Cr, Co, Mn, Zn and Fe were measured in bivalves, Cerastoderma glucaum, and four species of fishes including Alburnus chalcoides, Liza aurata, Rutilus frisii and Sander lucioperca from various trophic levels of the Caspian food web. The concentrations of Cd, Cr, Co and Ni in most samples of fish were below the detection limits; while the concentrations ...

کلباسی, محمود , گندمکار, اکبر ,

The moisture content of urban solid wastes in Iran is very high. A large volume of leachate is, therefore, produced in the process of converting these wastes into compost. The leachate contains relatively large amounts of organic matter, plant nutrients, soluble salts as well as small amounts of some heavy metals. The effects of urban solid waste leachate on growth and yield of corn and heavy m...

ژورنال: علوم آب و خاک 1997
کلباسی, محمود , گندمکار, اکبر ,

The moisture content of urban solid wastes in Iran is very high. A large volume of leachate is, therefore, produced in the process of converting these wastes into compost. The leachate contains relatively large amounts of organic matter, plant nutrients, soluble salts as well as small amounts of some heavy metals. The effects of urban solid waste leachate on growth and yield of corn and heavy m...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه کاشان - دانشکده فیزیک 1390

با توجه به قابلیت کاربرد نانوسیم ها در محیط های ثبت مغناطیسی چگالی بالا و gmr و با توجه اینکه اضافه کردن یک ماده غیر مغناطیسی به ماده مغناطیسی می تواند روش خوبی در کاهش برهمکنش های مغناطواستاتیک باشد تصمیم به ساخت نانوسیم های fezn گرفتیم. ساخت نانوسیم ها در دو مرحله انجام شد. در مرحله اول قالب آلومینا توسط آندیزاسیون دو مرحله ای ساخته شد و سپس یون های fe و zn با روش الکترونهشت پالسی ac در نانو...

Journal: :The British journal of nutrition 2016
Ewa A Szymlek-Gay Magnus Domellöf Olle Hernell Richard F Hurrell Torbjörn Lind Bo Lönnerdal Christophe Zeder Ines M Egli

Different metabolic pathways of supplemental and fortification Fe, or inhibition of Zn absorption by Fe, may explain adverse effects of supplemental Fe in Fe-sufficient infants. We determined whether the mode of oral Fe administration or the amount habitually consumed affects Fe absorption and systemic Fe utilisation in infants, and assessed the effects of these interventions on Zn absorption, ...

In order to investigate the effect of different Fe sources on micronutrients concentration, especially Fe, in bell pepper (Capsicum annuum L. cv. California Wonder), under alkaline conditions and hydroponic system, a factorial experiment was conducted based on a completely randomized design with two factors of sodium bicarbonate (NaHCO3) at three levels (0, 10 and 15 mM) and four forms of Fe fe...

حق نیا, غلامحسین, خراسانی, رضا, قشلاقی, زهرا, کافی, محمد,

Leafy vegetables are considered as the main sources of nitrate in the human diet. In order to investigate the effect of nitrate levels and harvest times on nitrate accumulation, nitrate reductase activity, concentrations of Fe, Zn, Cu and K in Lettuce and Spinach and their relation to nitrate accumulation in these leafy vegetables, two harvest times (29 and 46 days after transplanting), two veg...

A.H. Hamidian, A.R. Mirzajani, M. Karami,

The bioaccumulations of metals Cu, Cd, Ni, Cr, Co, Mn, Zn and Fe were measured in bivalves, Cerastoderma glucaum, and four species of fishes including Alburnus chalcoides, Liza aurata, Rutilus frisii and Sander lucioperca from various trophic levels of the Caspian food web. The concentrations of Cd, Cr, Co and Ni in most samples of fish were below the detection limits; while the concentrations ...

Journal: :international journal of environmental research 2011
b. houda g. dorra a. chafai a. emna m. khaled

concentrations of zn, cu, cr, cd, pb and fe in surface marine sediments of the southern coast of sfax were studied in order to understand current metal contamination at the outlet of a mixed industrial and domestic wastewater effluent discharged into the seawater since 1953. we found that heavy metal concentrations (mg/kg dry weight) in surface marine sediments varied from 42 to 391 for zn, 15 ...

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