Results 121 to 130 of about 23,917 (146)

Age determination of the open cluster NGC 2287 (M41)

Astrophysics and Space Science, 1988
We have estimated the age of the open cluster NGC 2287 (M41) by taking into account the rotation of the member stars.
KÜÇÜK, İBRAHİM, ERYURTEZER, D
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The use of M41S materials in chiral HPLC

Chemical Communications, 1999
Siliceous MCM-41 and MCM-48, covalently linked with the chiral selector (R)-naphthylethylamine, have been evaluated as supports in chiral HPLC and show for several racemates higher separation factors than for a stationary phase based on amorphous silica.
Carla Thoelen, Kris Van de Walle, Ivo F. J. Vankelecom, Pierre A. Jacobs   +3 more
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Chemical modification of high-quality large-pore M41S materials

Journal of Materials Chemistry, 2002
M41S materials with a pore diameter of 80 A and MCM-41 materials with a pore diameter of 30 A were grafted with a variety of trimethoxysilanes and chlorosilanes. The obtained hybrid materials were characterised by thermogravimetric analysis, nitrogen adsorption measurements and multi nuclear MAS NMR.
Benedikt Lindlar, Marco Lüchinger, Adeline Röthlisberger, Mohamed Haouas, Gerhard Pirngruber, Andreas Kogelbauer, Roel Prins   +6 more
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Postsynthesis Hydrothermal Restructuring of M41S Mesoporous Molecular Sieves in Water

The Journal of Physical Chemistry B, 1999
A high-quality Si−MCM-41 was prepared with the composition of SiO2, 0.2; TEAOH, 0.25; CTMABr, 35 in H2O using fumed silica as the silica source. The quality of the compounds was assessed using different analytical techniques such as XRD, N2 adsorption−desorption measurement, UV−vis absorption, FTIR, and 29Si MAS NMR.
Laiyuan Chen, Tatsubbro Horiuchi, Toshiaki Mori, Kazuyuki Maeda   +3 more
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Shawe House, Flixton, M41 5DX: Historic Building Recording

2020
Archaeological Research Services Ltd was commissioned in December 2019 by THT Developments Ltd to undertake a historic building recording of the heritage structure at Shawe House, Pennybridge Lane, Flixton, M41 5DX. The historic building recording was undertaken to discharge condition 3 of the planning permission prior to the demolition of the existing
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The modification of M41S materials: addition of metal clusters and nanoparticles

New Journal of Chemistry, 2010
The incorporation of various molecular metal clusters, with well defined stoichiometry, into M41S materials has been investigated. The grafting of simple metal clusters, such as [Ru3(CO)12] and [PPN]2[Fe4(CO)13], and the larger, and in one instance, bimetallic, clusters [(dppe)2Cu][Cu6Fe4(CO)16] and [PPh4][Ru10(μ6-C)(μ-H)(CO)24] has been achieved ...
Nicole S. Hondow, George A. Koutsantonis, Rebecca O. Fuller, Hamzah Fansuri, Martin Saunders, Robert L. Stamps, Dongke Zhang   +6 more
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Preparation of M41S family mesoporous silica thin films on porous oxides

Microporous and Mesoporous Materials, 2005
Abstract The preparation of thin films of silicate MCM-41 and silicate MCM-48 on porous oxides have been studied using spin-coating, hydrothermal deposition, X-ray diffraction (XRD), scanning electron microscopy (SEM), N 2 adsorption–desorption and thermogravimetry (TG).
Huang, L., Kawi, S., Hidajat, K., Ng, S.C.   +3 more
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[Scl1 of M41-type group A streptococcus binds low-density lipoprotein].

Wei sheng wu xue bao = Acta microbiologica Sinica, 2010
To study the interaction of streptococcal collagen-like protein 1 (Scl1) of M41-type group A streptococcus (GAS) ATCC12373 with low-density lipoprotein (LDL).We cloned, expressed and purified the recombinant proteins rScl1 and its V region rScl1-V, designated as C176 and C176V, derived from Scl1. 41 of M41-type GAS.
Chunwei, Liang, Ruidong, Zhao, Yuming, Gao, Runlin, Han   +3 more
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MPEC 2025-M41 : 2025 MW

The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements. They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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Isopropylation of polynuclear aromatic hydrocarbons on Al-containing M41S mesoporous catalysts

Microporous Materials, 1997
Abstract MCM-48 with Al incorporated into the walls constructing its mesopores (Al-MCM-48) was synthesized by a hydrothermal method. Al-MCM-48 possesses almost the same surface area, thermal stability and pore size as MCM-48, and has an acidity equivalent to Al-MCM-41.
S.B. Pu, J.B. Kim, M. Seno, T. Inui
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