نتایج جستجو برای: 1800 mcm

تعداد نتایج: 11364  

Journal: :Biochemical Society transactions 2008
Susan L Forsburg

The MCM (minichromosome maintenance) complex is a helicase which is essential for DNA replication. Recent results suggest that the MCM helicase is important for replication fork integrity, and may function as a target of the replication checkpoint. Interactions between MCM proteins, checkpoint kinases, and repair and recovery proteins suggest that MCMs are proximal effectors of replication fork...

Manganese (?) complex with 2, 2? bipyridine, 1, 1? dioxide (bpdo) ligand was immobilized within nanoreactors of MCM-41. The immobilized complex was characterized by powder x-ray diffraction (XRD), nitrogen adsorption desorption, and FTIR. The pore volume, surface area and pore diameter of MCM-41 decreased after immobilization of Mn complex. Three bands observed at 1250, 1220 cm?1 and 757 cm?1 a...

2006
Brian Camley Pascal Getreuer Bradley Klingenberg

Every year, the Consortium for Mathematics and its Applications (C C C OMA OMA OMA P P P) sponsors the Mathematical Contest in Modeling (MCM), an international contest for undergraduates. We will discuss our strategy for developing models, writing the paper, the contest timeline, and team dynamics. 1 What is the MCM? In the MCM, three-person teams are given 96 hours to develop mathematical mode...

2009
Seong Kon Lee

Zeolite A and MCM-41 have extensive applications in basic science, petrochemical science, energy conservation/storage, medicine, chemical sensor, air purification, environmentally benign composite structure and waste remediation. However, the use of zeolite A and MCM-41 in these areas, especially environmental remediation, are restricted due to prohibitive production cost. Efficient recycling o...

2018
Ying Wu Yiming Tang Laisheng Li Peihong Liu Xukai Li Weirui Chen Ying Xue

HIGHLIGHTS Fe incorporation significantly accelerated the adsorption of CPX on MCM-41.Fe leaching can be ignored when pH was higher than 4.0.pH played an important role in CPX adsorption on Fe-MCM-41.Co-effect of CPX and metal cations on Fe-MCM-41 was investigated. Fe-MCM-41s with various molar ratios of silicon to iron (20, 40, 80, and 160) were prepared to investigate adsorption properties of...

2008
Sibasish Das

In the near future, the need for portable multi-antenna wireless devices supporting high data-rates in a harsh mobile environment is anticipated. Typically, in this scenario, the underlying wireless channels are timeand frequency selective, hence doubly selective (DS). Multicarrier modulation (MCM) schemes, wherein data is split into sub-streams and transmitted on a set of subcarriers in parall...

2017
Yang Teng Zhilin Liu Gang Xu

Tetraethylenepentamine (TEPA)-based mesoporous MCM-41 is used as the adsorbent to determine the CO2 desorption kinetics of amine-modified materials after adsorption. The experimental data of CO2 desorption as a function of time are derived by zero-length column at different temperatures (35, 50, and 70 ◦C) and analyzed by Avrami’s fractional-order kinetic model. A new method is used to distingu...

Journal: :Microprocessors and Microsystems - Embedded Hardware Design 2011
Levent Aksoy Eduardo Costa Paulo F. Flores José C. Monteiro

0141-9331/$ see front matter 2011 Elsevier B.V. A doi:10.1016/j.micpro.2011.08.009 ⇑ Corresponding author. Tel.: +351 21 3100260; fax E-mail addresses: [email protected] (L. A (E. Costa), [email protected] (P. Flores), [email protected] Over the years many efficient algorithms for the multiplierless design of multiple constant multiplications (MCMs) have been introduced. These algorithms pri...

Journal: :iranian journal of catalysis 2013
hamid reza pouretedal mina ahmadi

the direct and indirect methods in solvent media and grinding method in a solvent-free media were used to prepare the mcm-41/zno and mcm-48/zno photocatalysts. the x-ray diffraction (xrd) patterns showed that zinc oxide nanoparticles were put into mcm-41 and mcm-48 substrates and there were zno crystallites as secondary phase in the extra framework of mesoporous materials. the decrease of surfa...

Hamid Reza Pouretedal Mina Ahmadi

The direct and indirect methods in solvent media and grinding method in a solvent-free media were used to prepare the MCM-41/ZnO and MCM-48/ZnO photocatalysts. The X-ray diffraction (XRD) patterns showed that zinc oxide nanoparticles were put into MCM-41 and MCM-48 substrates and there were ZnO crystallites as secondary phase in the extra framework of mesoporous materials. The decrease of surfa...

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