نتایج جستجو برای: HMCM-22

تعداد نتایج: 211932  

Journal: :Catalysts 2021

Molybdenum-zeolite catalysts always suffer from severe carbon deposition and rapid deactivation in the methane dehydroaromatization (MDA) process. Herein, we present a strategy that controls spatial distance between Mo species HMCM-22 zeolite over Mo/HMCM-22 catalysts, to inhibit deposition. Our characterization analyses demonstrate possess same active components, but plays key role determining...

Amirhossein Shahbazi Kootenaei Hosein Hoseini Maryam Gorjizadeh, Soheil Sayyahi,

HMCM-22 with a Si:Al molar ratio of 15:1 has been shown to effectively catalyze the synthesis of acetals with 100% selectivity by the reaction of aldehydes with methanol under reflux conditions. Platelet HMCM-22 particles were prepared by the static strategy and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), BET tech...

Amirhossein Shahbazi Kootenaei Hosein Hoseini Maryam Gorjizadeh, Soheil Sayyahi,

HMCM-22 with a Si:Al molar ratio of 15:1 has been shown to effectively catalyze the synthesis of acetals with 100% selectivity by the reaction of aldehydes with methanol under reflux conditions. Platelet HMCM-22 particles were prepared by the static strategy and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), BET tech...

Journal: :American journal of physiology. Heart and circulatory physiology 2003
Guifu Wu Arjuna P Mannam Jiaping Wu Simona Kirbis Jue-Lon Shie Christopher Chen Roger J Laham Frank W Sellke Jian Li

There is increasing evidence that cyclooxygenase (COX)-2 possess both angiogenic and cardioprotective properties. We examined the effects of hypoxic cardiac myocytes (H9c2 cells) on COX-2 expression in human umbilical vein endothelial cells (HUVECs) to determine the pathway involved in COX-2 regulation. The medium from hypoxic (<1% O2) cardiac myocytes (HMCM) or normoxic cardiac myocytes (21% O...

2015
Emma L. Hesketh Richard P. Parker-Manuel Yuriy Chaban Rabab Satti Dawn Coverley Elena V. Orlova James P. J. Chong

ATP-dependent DNA unwinding activity has been demonstrated for recombinant archaeal homohexameric minichromosome maintenance (MCM) complexes and their yeast heterohexameric counterparts, but in higher eukaryotes such as Drosophila, MCM-associated DNA helicase activity has been observed only in the context of a co-purified Cdc45-MCM-GINS complex. Here, we describe the production of the recombina...

Journal: :Journal of biomolecular NMR 2014
Vitali Tugarinov Vincenzo Venditti G Marius Clore

A methyl-detected 'out-and-back' NMR experiment for obtaining simultaneous correlations of methyl resonances of valine and isoleucine/leucine residues with backbone carbonyl chemical shifts, SIM-HMCM(CGCBCA)CO, is described. The developed pulse-scheme serves the purpose of convenience in recording a single data set for all Ile(δ1), Leu(δ) and Val(γ) (ILV) methyl positions instead of acquiring t...

2013
Li Zhu Qingxian Zhang Sufang Shi Lijun Liu Jicheng Lv Hong Zhang

Podocyte loss has been reported to relate to disease severity and progression in IgA nephropathy (IgAN). However, the underlying mechanism for its role in IgAN remain unclear. Recent evidence has shown that IgA1 complexes from patients with IgAN could activate mesangial cells to induce soluble mediator excretion, and further injure podocytes through mesangial-podocytic cross-talk. In the presen...

Journal: :International Journal of Advanced Computer Science and Applications 2023

A lot of diseases may be preventable if they can analyzed or predicted from patient historical and family data. Predicting diagnosis depends on the gathered clinical physiological data patients. The more collected medical healthcare data, knowledge support system support. Hence, real monitoring for patients is trend this decade based Internet Things technologies (IoT). IoT models facilitate hum...

Journal: :Optics express 2004
Christophe Collet Jihad Zallat Yoshitate Takakura

This paper extends and refines previous work on clustering of polarization-encoded images. The polarization-encoded images used in this work are considered as multidimensional parametric images where a clustering scheme based on Markovian Bayesian inference is applied. Hidden Markov Chains Model (HMCM) and Hidden Hierarchical Markovian Model (HHMM) show to handle effectively Mueller images and ...

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