نتایج جستجو برای: fe

تعداد نتایج: 78691  

Journal: :Environmental science & technology 2011
Michael V Schaefer Christopher A Gorski Michelle M Scherer

Interfacial electron transfer has been shown to occur between sorbed Fe(II) and structural Fe(III) in Fe oxides, but it is unknown whether a similar reaction occurs between sorbed Fe(II) and Fe(III)-bearing clay minerals. Here, we used the isotopic specificity of (57)Fe Mössbauer spectroscopy to demonstrate electron transfer between sorbed Fe(II) and structural Fe(III) in an Fe-bearing smectite...

2002
M. Linimon Lonesome Dove

A previous document, RFC 1341, defines a format and general framework for the representation of a wide variety of data types in Internet mail. This document defines one particular type of MIME data, the matter-transport/sentient-life-form type. The mattertransport/sentient-life-form MIME type is intended to facilitate the wider interoperation of electronic mail messages that include entire sent...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد علوم دارویی - دانشکده داروسازی 1394

گیاه ajuga chamaecistus که به فارسی خوروز، سفید چورک، سفید مشکک، ماش دارو، و... نامیده می شود از تیره نعناع (لابیاته) است. این جنس در ایران 5 گونه دارد که گونه chamaecistus دارای چند زیر گونه انحصاری ایران و از جلمه زیر گونه tomentella است. از گیاه ajuga در منابع طب سنتی به نام کمافیطوس یا خامافیطس ، عَرصف صنوبری ، ماش دارو و... نام برده شده است و در درمان استسقاء، یرقان، درد مفاصل، نقرس، عرق ال...

Journal: :iranian journal of chemical engineering 0
mehran jafari hydrogen and fuel cell research laboratory, department of chemical engineering, faculty of engineering, university of kashan abdullah irankhah hydrogen and fuel cell research lab., chemical engineering dep., engineering faculty, university of kashan masoud mahmoudizadeh hydrogen and fuel cell research laboratory, department of chemical engineering, faculty of engineering, university of kashan

methanol steam reforming plays a pivotal role to produce hydrogen for fuel cell systems in a low temperature range. to accomplish higher methanol conversion and lower co production, the reaction was catalyzed by cuznfe mixed oxides. various ratios of fe and cu/zn were coprecipitated in differential method to optimize the cuznfe structure. the sample containing 45cu50zn5fe (wt. %) revealed its m...

Journal: :international journal of advanced biological and biomedical research 2014
farinaz davar zareii arash roozbahani amir hosnamidi

to study the impact of iron nanoparticles foliar application on mitigating the effects of drought stress on yield, yield components and  oil percentage of goldasht spring safflower cultivar, an experiment was carried out in 2012 in the agricultural research farm station of islamic azad university, roudehen branch as split plot in a completely randomized blocks design with three replications. in...

2016
Tatsuki Kunoh Hideki Hashimoto Tomoko Suzuki Naoyuki Hayashi Katsunori Tamura Mikio Takano Hitoshi Kunoh Jun Takada Karen Hudson-Edwards

Leptothrix species, one of the Fe/Mn-oxidizing bacteria, oxidize Fe(II) and produce extracellular, microtubuar, Fe-encrusted sheaths. Since protein(s) involved in Fe(II) oxidation is excreted from Leptothrix cells, the oxidation from Fe(II) to Fe(III) and subsequent Fe(III) deposition to sheaths have been thought to occur in the vicinity or within the sheaths. Previously, Fe(III) particles gene...

Journal: :The British journal of nutrition 2011
Michael B Zimmermann Ralf Biebinger Ines Egli Christophe Zeder Richard F Hurrell

Fe absorption from water-soluble forms of Fe is inversely proportional to Fe status in humans. Whether this is true for poorly soluble Fe compounds is uncertain. Our objectives were therefore (1) to compare the up-regulation of Fe absorption at low Fe status from ferrous sulphate (FS) and ferric pyrophosphate (FPP) and (2) to compare the efficacy of FS with FPP in a fortification trial to incre...

2016
Timothy Stephen Pasakarnis Timothy S. Pasakarnis Michelle M. Scherer David M. Cwiertny Timothy E. Mattes Michael L. McCormick Edward Abbey

The reaction between aqueous Fe(II) and Fe(III) oxides is extremely complex, and can catalyze Fe(II)-Fe(III) electron transfer, exchange of Fe atoms between the aqueous and solid phases, mineral transformation, and contaminant reduction. Together, these processes represent a phenomenon referred to as Fe(II)-catalyzed Fe oxide recrystallization, which has been observed under controlled condition...

2015
Elad Tako Spenser M Reed Jessica Budiman Jonathan J Hart Raymond P Glahn

BACKGROUND Our objective was to compare the capacity of iron (Fe) biofortified and standard pearl millet (Pennisetum glaucum L.) to deliver Fe for hemoglobin (Hb)-synthesis. Pearl millet (PM) is common in West-Africa and India, and is well adapted to growing areas characterized by drought, low-soil fertility, and high-temperature. Because of its tolerance to difficult growing conditions, it can...

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