نتایج جستجو برای: co2 activation

تعداد نتایج: 496095  

2016
Seok-Min Hong Eunji Jang Arthur D. Dysart Vilas G. Pol Ki Bong Lee

Microporous carbon compartments (MCCs) were developed via controlled carbonization of wheat flour producing large cavities that allow CO2 gas molecules to access micropores and adsorb effectively. KOH activation of MCCs was conducted at 700 °C with varying mass ratios of KOH/C ranging from 1 to 5, and the effects of activation conditions on the prepared carbon materials in terms of the characte...

Journal: :iranian journal of veterinary research 2015
j. kouamo s. d. kharche

the aim of the study was to compare the parthenogenetic activation and in vitro fertilization (ivf) of in vitro matured caprine oocytes. a total of 881 cumulus-oocyte complexes (coc’s) were collected from 243 ovaries. oocytes were matured in tcm-199 medium containing ecg (20 iu/ml), hcg (20 iuμg/ml), oestradiol-17β (1 μg/ml), bsa embryo tested (3 mg/ml) supplemented with 10% fetal bovine serum ...

Journal: :Cancer research 2000
K Salnikow W Su M V Blagosklonny M Costa

Nickel (Ni2+) and cobalt (Co2+) mimic hypoxia and were used as a tool to study the role of oxygen sensing and signaling cascades in the regulation of hypoxia-inducible gene expression. These metals can produce oxidative stress; therefore, it was conceivable that reactive oxygen species (ROS) may trigger signaling pathways resulting in the activation of the hypoxia-inducible factor (HIF)-1 trans...

Journal: :The American journal of physiology 1999
Sandra K Leeper-Woodford Kristina Detmer

Alterations in alveolar macrophage (AM) function during sepsis-induced hypoxia may influence tumor necrosis factor (TNF) secretion and the progression of acute lung injury. Nuclear factor (NF)-κB is thought to regulate the expression of endotoxin [lipopolysaccharide (LPS)]-induced inflammatory cytokines such as TNF, and NF-κB may also be influenced by changes in O2tension. It is thus proposed t...

2010
Susannah Scott

We are interested in catalysts consisting either of substitutionally doped oxides (e.g. RuxCe1-xO2) or of submonolayers of an oxide supported on another oxide (e.g. VOx supported on ceria). Calculations and experiments show that in most cases these systems are more active catalysts than the original oxide (i.e. ceria). We use theory to try to find general patterns governing the activation by do...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه زنجان - دانشکده علوم انسانی و اجتماعی 1392

most specialists in the field of foreign language teachingconsiderreading skill as an interactive process between the reader’s prior knowledge and the text.accordingly, the activation of prior knowledge for an effective comprehension is very important. it is generally agreed that the pre-reading phase is the stage where this type of interaction and activation may be enhanced throughcertain stra...

Journal: :Proceedings of the National Academy of Sciences 2000

Journal: :Neuro-degenerative diseases 2004
Zhongcong Xie Robert D Moir Donna M Romano Giuseppina Tesco Dora M Kovacs Rudolph E Tanzi

BACKGROUND At least half of all cases of early onset (<60) familial Alzheimer's disease (FAD) are caused by any of over 150 mutations in three genes: the amyloid precursor protein (APP), presenilin 1 (PS1), and presenilin 2 (PS2). Mutant forms of PS1 have been shown to sensitize cells to apoptotic cell death. OBJECTIVE We investigated the effects of hypocapnia, a risk factor for both cognitiv...

Journal: :Chemosphere 2021

3D graphene-based materials are promising adsorbents for environmental applications. Furthermore, increasing attention has been paid to the improvement of graphene removing pollutants. In this article, progress in modification and their performance pollutants were reviewed. The strategies, which classified as (1) activation with CO2 (steam other oxidants) (2) surface functionalization polymers ...

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