نتایج جستجو برای: 80zn and 100 fe

تعداد نتایج: 16894363  

Journal: :The British journal of nutrition 1990
P Galan F Cherouvrier I Zohoun T Zohoun M Chauliac S Hercberg

Iron absorption from three typical West African meals was measured in fourteen subjects using the extrinsic-tag technique with 59Fe and 55Fe. All meals consisted of maize as the staple food. Meals were prepared in Benin under realistic conditions from locally grown foods. Of the non-haem-Fe in the meals 39-73% did not exchange with the added inorganic radio-Fe tracer, depending on the degree of...

Journal: :علوم باغبانی 0
زهرا محمدی حمید رضا روستا احمد تاج آبادی پور حسین حکم آبادی

this research carried out in the rafsanjan pistachio orchard to investigate the effect of n form, manure, k and fe on yield, nut quality and leaf mineral nutrients concentrations of pistacia vera l. cv. fandoghi grafted on badami-riz zarand rootstock. the experiment was as factorial with four factors including; manure (without manure and 10 kg tree-1 sheep manure), n form (ammonium sulfate and ...

Journal: :Molecules 2013
Ashriti Govender Daniel Curulla-Ferré Manuel Pérez-Jigato Hans Niemantsverdriet

Ab initio total-energy calculations of the elementary reaction steps leading to acetylene, ethylene and ethane formation and their decomposition on Fe(100) are described. Alongside the endothermicity of all the formation reactions, the crucial role played by adsorbed ethyl as main precursor towards both ethylene and ethane formation, characterises Fe(100) surface reactivity towards C(2)H(x) (x ...

زاهدی, مرتضی, عشقی زاده, حمیدرضا, عمادی, سارا, نوری پور سی سخت, جواد,

A greenhouse experiment, as hydroponic, was carried out in order to investigate the response of sunflower genotypes (Hison125, Iroflor and Bliezer) to different levels of salinity (0, 60 and 120 mM of NaCl) and Fe (0, 50 and 100 mM) in nutrient solution. The experiment was arranged as factorial, based on a completely randomized blocks design with four replications. Results showed that plant hei...

ژورنال: :پژوهش فیزیک ایران 0
علیرضا مشفق a. z. moshfegh department of physics, sharif university of technology p.o. box: 11365-9161 tehran-iranدانشکده فیزیک ـ دانشگاه صنعتی شریف علی ریحانی a. reyhani department of physics, sharif university of technology p.o. box: 11365-9161 tehran-iranدانشکده فیزیک ـ دانشگاه صنعتی شریف

در این تحقیق, سینتیک و سازوکار واکنش سنتز nh3 بر سطح دو کاتالیست مدل( fe(100 و k/fe (100) مورد مطالعه و بررسی قرار می گیرد. برای این کار, ابتدا سینتیک جذب سیستمهای (100)n2/fe و(100)h2/fe تحقیق گردید. با استفاده از محاسبات مکانیک آماری, ضریب جذب سطحی برای ملکولهای 2n و 2h و همچنین احتمال گذار حالات مختلف جذب و تجزیه آنها تعیین شد. سپس, تاثیر دما بر سطح کاتالیست و فشار گازهای n2 و h2 بر سرعت واکن...

Journal: :Journal of animal science 1981
E R Miller M J Parsons D E Ullrey P K Ku

Two experiments were conducted to determine the bioavailability for young pigs of Fe from ferric choline citrate or from a commercial mixture of Fe, Cu and Co choline citrate salts. Relative biological value of Fe from either source with a standard of 100 for FeSO4 x 7H20 was about 140 by both hemoglobin regeneration and Fe retention methods.

Journal: :Journal of environmental quality 2012
Sally L Brown Ingrid Clausen Mark A Chappell Kirk G Scheckel Matthew Newville Ganga M Hettiarachchi

The safety of urban farming has been questioned due to the potential for contamination in urban soils. A laboratory incubation, a field trial, and a second laboratory incubation were conducted to test the ability of high-Fe biosolids-based composts to reduce the bioaccessibility of soil Pb and As in situ. Lead and As bioaccessibility were evaluated using an in vitro assay. Changes in Pb, As, an...

2007
Donald F. Johnson Emily A. Carter

Properties of the Cr(100)/Fe(100) and Cr(110)/Fe(110) interfaces are investigated with spin-polarized density functional theory within the generalized gradient approximation (DFT-GGA) for electron exchange and correlation. Contrary to earlier predictions for a monolayer of Cr on bulk Fe, we find intermixing of Cr and Fe at the interface of thick films to be endothermic; hence here we focus on c...

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