نتایج جستجو برای: نانو mgo

تعداد نتایج: 21348  

2000
H. MEDIAAS

Some fundamental data related to the solvent proposed for a new technical electrolytic process for magnesium production based on MgO as the raw material are presented. Liquidus data are obtained for MgCl2-rich melts in the MgCl2-NdOCl system. The solubility of MgO and NdOCl in pure liquid NdCl3, MgO in NdCl3-MgCl2 and in MgCl2-NdCl3-NaCl liquid mixtures, and NdOCl in CaCl2 and Cs2MgCl4 have als...

Journal: :Experimental eye research 2004
M Satish Kumar T Mrudula N Mitra G Bhanuprakash Reddy

Methylglyoxal (MGO), a potent glycating agent, forms advanced glycation end products (AGEs) with proteins. Several diabetic complications including cataract are thought to be the result of accumulation of these protein-AGEs. alpha-Crystallin, molecular chaperone of the eye lens, plays an important role in maintaining the transparency of the lens by preventing the aggregation/inactivation of sev...

2002
Kyei-Sing Kwong James P. Bennett

The recycling options of spent MgO-C refractories from an electrical arc furnace (EAF) have been evaluated. The economic, quality of spent refractories and products made from it, the ease of implementation of a recycling practice and the interest of steel melt shops were considered. It was decided that the best option of most EAF shops would be to recycle spent MgO-C refractory as a foaming sla...

1999
W. Jo

Ferroelectric Bi4Ti3012 thin films have been grown on MgO ( 100) and MgO( 110) substrates by the pulsed laser deposition. X-ray diffraction studies show that the films on both substrates have preferential crystallographic orientation such that most of their c axes are close to the substrate normal direction. The film on MgO( 110) shows quadratic and hysteretic electro-optic characteristics with...

2004
Yu. S. Dedkov M. Fonin G. Güntherodt U. Rüdiger

Electronic and structural properties of ultrathin MgO layers grown on epi-taxial Fe(110) films were investigated at room temperature by means of spin-resolved photoelectron spectroscopy, Auger-electron spectroscopy, and low energy electron diffraction. The spin polarization at the Fermi level of the Fe(110) film decreases abruptly with increasing thickness of MgO layer up to 7 ˚ A. This behavio...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه کاشان - دانشکده مهندسی 1392

ارتقا دهنده سریا برای کاتالیست های نیکل روی پایه نانو کریستالی اکسید منیزیم در فرایند ریفرمینگ متان با دی اکسید کربن تهیه و استفاده گردیدند. روش رسوب گیری همراه با افزودن ماده فعال سطحی پلی اتیلن گلایکول (peg) منجر به تهیه اکسید منیزیم نانو کریستالی با ساختار مزو حفره،صفحه ای شکل و مساحت سطحی ویژه بالاتر گردید. بررسی های کاتالیستی نشان داد که افزایش در میزان بارگذاری اکسید سریم تا 10 درصد وزن...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مازندران - دانشکده علوم انسانی و اجتماعی 1390

جهت بررسی اثر ابعاد کاتالیزور بر ابعاد نانولوله های سنتز شده به روش ccvd نیاز به در اختیار داشتن نانوذرات کاتالیزوری با ابعاد گوناگون داریم. لذا برای این منظور در یک مرحله از طرح، با تغییر در صد وزنی کبالت نسبت به درصد وزنی ماده بستر، نانو ذرات اکسید کبالت با ابعاد مختلف، با بکار گیری روش تلقیح مرطوب بر روی بستر mgo سنتز گردید. به منظور مطالعه ساختار نمونه ها، از طرح پراش اشعه x( طیف xrd)، و ...

Journal: :Revista portuguesa de cardiologia : orgao oficial da Sociedade Portuguesa de Cardiologia = Portuguese journal of cardiology : an official journal of the Portuguese Society of Cardiology 2017
Ana Rita Ramalho Adriana Toscano Paulo Pereira Henrique Girão Lino Gonçalves Carla Marques

INTRODUCTION AND OBJECTIVES Cardiovascular disease is the leading cause of mortality and morbidity associated with diabetes. Although impairment of the cell response to hypoxia due to destabilization of the transcription factor hypoxia-inducible factor-1α (HIF-1α), which regulates the expression of genes that help cells to cope with low oxygen tension, has been implicated in diabetes-associated...

2001
Jeffrey W. Bullard Zhengkui Xu Mohan Menon G. B. Stringfellow

Close lattice matching with a MgAl2O4 (0 0 1) substrate has been used to synthesize thin films of a rare spinel-like polymorph of MgO (b-MgO) that is unstable in bulk form. The film is produced by spin casting an acetate-substituted Mg-ethoxide precursor, which forms a crystalline magnesium acetate phase at room temperature. Pyrolysis of most organic constituents occurs during continuous heatin...

2013
S. M. Momeni M. Pakizeh

Nanocomposite membranes composed of polymer and inorganic nanoparticles are a novel method to enhance gas separation performance. In this study, membranes were fabricated from polysulfone (PSf) containing magnesium oxide (MgO) nanoparticles and gas permeation properties of the resulting membranes were investigated. Membranes were prepared by solution blending and phase inversion methods. Morpho...

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