نتایج جستجو برای: mgo

تعداد نتایج: 7273  

2001
H. M. J. R. H. Ross

The promoting effect of niobium in a Li/MgO catalyst for the oxidative coupling of methane (OCM) and for the oxidattve dehydrogenation of ethane (ODHE) has been studied in some detail. it has been found that a Li/Nb/MgO catalyst with 16 wt % niobium showed the highest activity for the C, production in the OCM reaction; the activity at 600 “C was ten times that of the Li/MgO catalyst at the same...

2010
Carla Figueira Bento Filipa Marques Rosa Fernandes Paulo Pereira

BACKGROUND Increased production and accumulation of methylglyoxal (MGO), as well as increased modification of proteins by glycoxidation, are hallmarks of aging and diabetes. MGO was shown to modify proteins and to contribute to the accumulation of damaged proteins that can be toxic to cells. However, the effect of MGO on the cell systems responsible for repairing or degrading damaged proteins i...

Journal: :Physical chemistry chemical physics : PCCP 2015
Zhi-Feng Shi Yuan-Tao Zhang Xi-Jun Cui Shi-Wei Zhuang Bin Wu Xian-Wei Chu Xin Dong Bao-Lin Zhang Guo-Tong Du

Vertically aligned ZnO/MgO coaxial nanowire (NW) arrays were prepared on sapphire substrates by metal-organic chemical vapor deposition combined with a sputtering system. We present a comparative investigation of the morphological and optical properties of the produced heterostructures with different MgO layer thicknesses. Photoluminescence measurements showed that the optical performances of Z...

Journal: :Physical chemistry chemical physics : PCCP 2014
Kiwoong Kim Jeong Woo Han Kwang Soon Lee Won Bo Lee

Developing next-generation solid sorbents to improve the economy of pre- and post-combustion carbon capture processes has been challenging for many researchers. Magnesium oxide (MgO) is a promising sorbent because of its moderate sorption-desorption temperature and low heat of sorption. However, its low sorption capacity and thermal instability need to be improved. Various metal-promoted MgO so...

Journal: :Chemical communications 2013
Lianjun Liu Cunyu Zhao Huilei Zhao Daniel Pitts Ying Li

A novel MgO-patched TiO2 microsphere photocatalyst demonstrated 10 times higher activity toward CO production from CO2 photoreduction with H2O vapor, when the reaction temperature increased from 50 to 150 °C. The catalytic performance of hybrid MgO-TiO2 was much more stable than TiO2, particularly at a higher temperature, likely due to easier desorption of reaction intermediates and the enhance...

Journal: :Biomedica biochimica acta 1985
A Dienel K Andreas J Schmidt

The influence of several nootropic drugs (piracetam, pyritinol, meclofenoxat, methylglucamine orotate (MGO) and dihydroergotoxine (DHET) on both the ethanol preference and the enhanced seizure susceptibility after a single dose of ethanol was studied. Piracetam, MGO and DHET reduce the ethanol drinking in ethanol-preferring mice. The enhanced seizure susceptibility after a single dose of ethano...

Journal: :مجله بین المللی علوم آزمایشگاهی 0
fahima danesh pouya javad zavar-reza beman ali jalali naser danesh pouya

backgrounds and aims: methylglyoxal (mgo) is an –α, β dicarbonyl aldehyde inevitably produced from triose-phosphate intermediates of glycolysis, and amino acid. increased mgo in blood leads to alterations in coagulation, clot permeability and thus, atherosclerosis in children with diabetes; however, the precise mechanism is not clear. the present study aimed to compare different concentrations ...

2014
Amritpal Singh Subhadra Gupta Majd Kuteifan Marko Lubarda Vitaliy Lomakin Oleg Mryasov

Articles you may be interested in Interlayer exchange coupled composite free layer for CoFeB/MgO based perpendicular magnetic tunnel junctions J. Thermal stability and spin-transfer switchings in MgO-based magnetic tunnel junctions with ferromagnetically and antiferromagnetically coupled synthetic free layers Appl. Effect of interlayer coupling in CoFeB/Ta/NiFe free layers on the critical switc...

Journal: :Physical review letters 2001
H L Meyerheim R Popescu J Kirschner N Jedrecy M Sauvage-Simkin B Heinrich R Pinchaux

The geometric structure of MgO deposited on Fe(001) in ultrahigh vacuum by electron evaporation was determined in detail by using surface x-ray diffraction. In contrast to the common belief that MgO grows in direct contact on the Fe(001) substrate, we find an FeO interface layer between the substrate and the growing MgO structure which has not been considered thus far. This result opens new per...

1997
Peidong Yang Charles M. Lieber

A chemical approach to the formation of columnar defects involving the growth and incorporation of MgO nanorods into high temperature superconductors (HTS’s) has been developed. MgO nanorods were incorporated into Bi2Sr2CaCu2Oz, Bi2Sr2Ca2Cu3Oz, and Tl2Ba2Ca2Cu3Oz superconductors at areal densities up to 2 3 1010ycm2. Microstructural analyses of the composites demonstrate that the MgO nanorods c...

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