نتایج جستجو برای: mgo c refractories

تعداد نتایج: 1063106  

2008
Kaoru MIYATA Sentaro OZAWA Tatsuya YAMAZAKI Yoshisada OGINO

The activity of a Te-MgO catalyst prepared by adsorbing Te vapor onto MgO powder was determined by dehydrogenation of indane, 9,10-dihydrophenanthrene, cumene, and p-cymene. The activity of the Te-MgO catalyst was higher than that of the MgO catalyst in most of the cases investigated. The selectivity of the former catalyst was much higher than that of the later in all cases studied. The Te-MgO ...

Journal: :Journal of the Ceramic Society of Japan 2004

2012
Abdul Rahim Yacob Mohd Khairul Asyraf Amat Mustajab Nur Syazeila Samadi

Nano MgO has been synthesized by hydration and dehydration method by modifies the commercial MgO. The prepared MgO had been investigated as a heterogeneous base catalyst for transesterification process for biodiesel production using palm oil. TGA, FT-IR and XRD results obtained from this study lie each other and proved in the formation of nano MgO from decomposition of Mg(OH)2. This study prove...

2004
L. Yan C. K. Ong

Bi3.25Nd0.75Ti3O12 (BNT) ferroelectric thin films with a thickness of f0.5 Am, on substrates of Pt/Ti/SiO2/Si, (100) SrTiO3 and (100) MgO, with a 0.4-Am-thick La0.7Sr0.3MnO3 (LSMO) layer as bottom electrode, were deposited via pulsed laser deposition. The multilayer thin films were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and electrical measurement. The LSMO ...

A. Kazemzadeh B. Arfaei M. Amin, N. Saha-Chaudhury V. Sahajwalla

In this study, slag penetration into a magnesia refractory monolithic was investigated by the crucible test method. A synthetic calcium aluminate slag system has been used to study commercial magnesia mix refractory for 1, 2, 3, 4, 5 and 6 hours at 1450°C and 1600°C. It has been shown that the penetration rate is controlled by a diffusion mechanism at 1450°C. In this case, capillaries are the ...

2016
Mahdi Shiri Mona Navaei-Nigjeh Maryam Baeeri Mahban Rahimifard Hossein Mahboudi Ahmad Reza Shahverdi Abbas Kebriaeezadeh Mohammad Abdollahi

Diazinon (DZ) is an organophosphorus insecticide that acts as an acetylcholinesterase inhibitor. It is important to note that it can induce oxidative stress, lipid peroxidation, diabetic disorders, and cytotoxicity. Magnesium oxide (MgO) and selenium nanoparticles (Se NPs) showed promising protection against oxidative stress, lipid peroxidation, cytotoxicity, and diabetic disorders. Therefore, ...

2013
Sreekanth K. Mahadeva Jincheng Fan Anis Biswas K.S. Sreelatha Lyubov Belova K.V. Rao

We report a systematic study of room-temperature ferromagnetism (RTFM) in pristine MgO thin films in their amorphous and nano-crystalline states. The as deposited dc-sputtered films of pristine MgO on Si substrates using a metallic Mg target in an O₂ containing working gas atmosphere of (N₂ + O₂) are found to be X-ray amorphous. All these films obtained with oxygen partial pressure (PO₂) ~10% t...

2012
H. Wakily M. Mehrali

Homogeneous composites of alumina and zirconia with a small amount of MgO (<1 wt %) were prepared by colloidal filtration. The object of using ZrO2 (15wt %) was to provide zirconia toughened alumina (ZTA). Suspensions of alumina and Zirconia with various solid loadings and various concentrations of Dolapix CE64 as surfactant were studied. The stability of these suspensions was investigated usin...

Journal: :Drug metabolism and pharmacokinetics 2012
Tatsuya Yagi Takafumi Naito Yasuaki Mino Kazuo Umemura Junichi Kawakami

The aim of this open-label, randomized, and 3-period crossover study was to evaluate the influences of concomitant antacid administration on the plasma disposition, intestinal absorption, and urinary excretion of gabapentin in humans. Gabapentin (200 mg) was orally administered alone, with 1 g magnesium oxide (MgO), or with 20 mg omeprazole to 13 healthy adult subjects. Oral bioavailability (BA...

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