نتایج جستجو برای: fe mcm 22 zeolite

تعداد نتایج: 300898  

2012
Tin Nguyen Madhav Jagannathan Kathy Shire Lori Frappier

MCM-BP was discovered as a protein that co-purified from human cells with MCM proteins 3 through 7; results which were recapitulated in frogs, yeast and plants. Evidence in all of these organisms supports an important role for MCM-BP in DNA replication, including contributions to MCM complex unloading. However the mechanisms by which MCM-BP functions and associates with MCM complexes are not we...

Journal: :Indonesian Journal of Agricultural Research 2023

Swiss chard (Beta vulgaris L. var. cicla), a popular leafy vegetable grown mainly for its ease of production and nutritional content, is normally used as good source microminerals iron (Fe) zinc (Zn). Improving plant uptake Fe Zn could assist in reducing micromineral deficiencies humans, which are global problem. A greenhouse pot experiment was conducted at the Agricultural Research Council, St...

2009
Pio Forzatti Isabella Nova Enrico Tronconi

NH3-Selective Catalytic Reduction (SCR) is applied worldwide to DeNOx of combustion exhausts from stationary and mobile sources, but a greater DeNOx activity at low temperatures is desired to meet forthcoming restrictive legislations. We have obtained high NO reduction efficiencies at 200 – 300 °C over commercial V-based and Fe-exchanged zeolite catalysts by reacting NO with both ammonia and ni...

Journal: :Journal of cell science 2012
Madhav Jagannathan Amos M Sakwe Tin Nguyen Lori Frappier

Mini-chromosome maintenance complex-binding protein (MCM-BP) was discovered as a protein that is strongly associated with human MCM proteins, known to be crucial for DNA replication in providing DNA helicase activity. The Xenopus MCM-BP homologue appears to play a role in unloading MCM complexes from chromatin after DNA synthesis; however, the importance of MCM-BP and its functional contributio...

2003
Yoichi Murakami Yuhei Miyauchi Shohei Chiashi Shigeo Maruyama

High purity single-walled carbon nanotubes (SWNTs) were synthesized from ethanol by catalytic CVD method. The yield of SWNTs was determined based on TGA complemented by Raman and TEM analyses. The effects of CVD reaction time and pre-reduction of catalytic metal on the yield and quality of synthesized SWNTs were investigated. The SWNT yield of more than 40% was achieved over the weight of zeoli...

Journal: :Journal of Zhejiang University. Science. B 2005
Gang Li Rui-Sen Lin Eiichi Kikuchi Masahiko Matsukata

A preferentially oriented mordenite membrane was successfully prepared on a seeded porous a-alumina support. Characterization results of XRD (X-ray diffractometer) and FE-SEM (field emission scanning electron microscope) revealed that evolutionary selection might predominantly contribute to the formation of the sharply oriented mordenite membrane. The necessary conditions under which evolutiona...

Journal: :ACS Catalysis 2022

The most studied catalysts for methane dehydroaromatization (MDA)?Mo/ZSM-5?are not commercialized yet due to the rapid deactivation and insufficient activity. Catalytic systems based on Fe Re are potential alternatives Mo-containing zeolites. Here, we compare catalytic performance of these as a function metal type its loading in ZSM-5 zeolite. results show that activity decreases order Re/ZSM-5...

Journal: :Nature Catalysis 2021

Iron-containing zeolites are heterogeneous catalysts that exhibit remarkable activity in the selective oxidation of inert hydrocarbons and catalytic decomposition nitrous oxide (N2O). The reduction N2O is critical to both these functions, but experimental data tracking iron active sites during binding activation limited. Here, N2O-ligated Fe(ii) site iron-exchanged zeolite beta isolated charact...

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