A simple large scale synthesis of very long aligned silica nanowires

A simple large scale synthesis of very long aligned silica nanowires

A simple large scale synthesis of very long aligned silica nanowires

... the large- scale synthesis of very long aligned silica nanowires. The SiO 2 nanowires were highly pure (no metal catal- ysis contamination), ultralong (millimeters). Most of wires had uniform diameters ... based on the thermal oxidation of Si wafers has been discovered to provide a large- scale synthesis of very long, aligned silica nanowires. The as-gro...
Ngày tải lên : 16/03/2014, 15:03
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facile large scale synthesis of ws2 nanotubes from wo3 nanorods prepared by a hydrothermal route

facile large scale synthesis of ws2 nanotubes from wo3 nanorods prepared by a hydrothermal route

... have been synthesised in gram quantitiesby a low temperature hydrothermal route using citric acid as a structural modifier and hexadecylamine as a templating agent. The ratio of [A] /[W] play an ... micrograph of a typical MWNT (c) along with its SAED pattern (d). The chiral angle of the nanotubes could be calculated as ∼ 10 ◦ based on the SAED. mixture of longer rods of vari...
Ngày tải lên : 19/03/2014, 16:48
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large scale synthesis of single-crystal hexagonal tungsten trioxide

large scale synthesis of single-crystal hexagonal tungsten trioxide

... nanocrystals Zhanjun Gu a, b , Huiqiao Li c , Tianyou Zhai a , Wensheng Yang d , Yongyao Xia c , Ying Ma a, Ã , Jiannian Yao a, Ã a Key Laboratory of Photochemistry, Beijing National Laboratory for Molecular (BNLMS), ... final products, and dried at 60 1C. X-ray diffraction (XRD) analysis was performed using a Japan Rigaku D/max-2500 diffractometer with CuKa radiation (l ¼ 1.5418 A...
Ngày tải lên : 20/03/2014, 13:04
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highly reproducible synthesis of very large-scale tin oxide nanowires

highly reproducible synthesis of very large-scale tin oxide nanowires

... observe the large- scale of SnO 2 NWs on the substrates. 2.2. Gas-sensor fabrication and testing Fig. 2 shows a schematic diagram of gas sensor fabrication. A patterned Au catalyst layer was deposited ... image of SnO 2 nanowires with Au catalyst cap on the substrates from up-stream (i) and down-stream (l); EDX spectrum measured at the catalyst cap of the up-stream sample (k)...
Ngày tải lên : 19/03/2014, 16:48
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Large scale synthesis, characterization and photoluminescence properties of amorphous silica nanowires by thermal evaporation of silicon monoxide

Large scale synthesis, characterization and photoluminescence properties of amorphous silica nanowires by thermal evaporation of silicon monoxide

... Large- scale synthesis, characterization and photoluminescence properties of amorphous silica nanowires by thermal evaporation of silicon monoxide Sanjay K. Srivastava a, Ã , P.K. Singh a , ... Sood a , D. Haranath a , Vikram Kumar a a National Physical Laboratory, Dr. K. S. Krishnan Marg, Pusa, New Delhi 110012, India b Department of Physics, Indian Institute of Tec...
Ngày tải lên : 16/03/2014, 15:18
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Báo cáo khoa học: "A System for Large-Scale Acquisition of Verbal, Nominal and Adjectival Subcategorization Frames from Corpora" pot

Báo cáo khoa học: "A System for Large-Scale Acquisition of Verbal, Nominal and Adjectival Subcategorization Frames from Corpora" pot

... (Korhonen et al., 2006) for a sample entry. 915 3.2 Gold Standard Our gold standard was based on a manual analysis of some of the test corpus data, supplemented with additional frames from the ANLT, ... first systems capable of automatically learn- ing a small number of verbal subcategorization frames (SCFs) from unannotated English corpora emerged over a decade ago (Brent, 199...
Ngày tải lên : 17/03/2014, 04:20
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large - scale synthesis and gas sensing application of vertically

large - scale synthesis and gas sensing application of vertically

... is often a great disadvantage to their application. As a template-free and catalyst-free method, epitaxial growth of free-standing nanorod arrays has recently been attained, in which a substrate ... 2009 Keywords: Tungsten oxide Nanorod arrays Hydrothermal synthesis Gas sensing Sensor abstract Large- scale vertically aligned and double-sided Co-doped hexagonal tungsten oxide na...
Ngày tải lên : 20/03/2014, 13:04
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simple and rapid synthesis of a-fe2o3 nanowires under ambient conditions

simple and rapid synthesis of a-fe2o3 nanowires under ambient conditions

... Simple and Rapid Synthesis of α -Fe 2 O 3 Nanowires Under Ambient Conditions Albert G. Nasibulin 1 ( ) , Simas Rackauskas 1 , Hua Jiang 1 , Ying Tian 1 , Prasantha Reddy Mudimela 1 , ... Srivastava, H.; Tiwari, P.; Srivastava, A. K; Nandedkar, R. V. Growth and characterization of alpha-Fe 2 O 3 nanowires. J. Appl. Phys. 2007, 102, 054303. [14] Dong, W. T.; Zhu, C. S. Use...
Ngày tải lên : 20/03/2014, 13:07
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Tài liệu Báo cáo khoa học: "Inducing Gazetteers for Named Entity Recognition by Large-scale Clustering of Dependency Relations" ppt

Tài liệu Báo cáo khoa học: "Inducing Gazetteers for Named Entity Recognition by Large-scale Clustering of Dependency Relations" ppt

... Dependency Relations Jun’ichi Kazama Japan Advanced Institute of Science and Technology (JAIST), Asahidai 1-1, Nomi, Ishikawa, 923-1292 Japan kazama@jaist.ac.jp Kentaro Torisawa National Institute of Information ... character itself ct character type: uppercase alphabet, lower- case alphabet, katakana, hiragana, Chinese characters, numbers, numbers in Chinese characters, and spaces m mo b...
Ngày tải lên : 20/02/2014, 09:20
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Báo cáo khoa học: "The key role of semantics in the development of large-scale grammars of natural language" pdf

Báo cáo khoa học: "The key role of semantics in the development of large-scale grammars of natural language" pdf

... role of semantics in the development of large- scale grammars of natural language Valia Kordoni Department of Computational Linguistics University of Saarland PO Box 15 11 50, D - 66041 Saarbriicken, ... Germany kordoni@coli.uni—sb.de Abstract The aim of this paper is to show how large- scale (computational) gram- mars of natural language benefit from an organization of...
Ngày tải lên : 17/03/2014, 22:20
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