large scale synthesis of single-crystal hexagonal tungsten trioxide
large scale synthesis of single-crystal hexagonal tungsten trioxide
... simple hydrothermal route to a large- scale synthesis of uniform single-crystalline nanowires of hexagonal tungsten trioxide without any templates or catalysts. The electrochemical performances of the as-prepared ... Journal of Solid State Chemistry 180 (2007) 98–105 Large- scale synthesis of single-crystal hexagonal tungsten trioxide nanowires and electroche...
Ngày tải lên: 20/03/2014, 13:04
A simple large scale synthesis of very long aligned silica nanowires
... A simple large- scale synthesis of very long aligned silica nanowires J.Q. Hu 1 , Y. Jiang, X.M. Meng, C.S. Lee, S.T. Lee * Department of Physics and Materials Science, Center of Super-Diamond ... production of large- quanti- ties of high-purity (no metal catalysis contamina- tion) and ultralong (millimeters) SiO 2 nanowires (most of the wires have uniform diameters of $50...
Ngày tải lên: 16/03/2014, 15:03
facile large scale synthesis of ws2 nanotubes from wo3 nanorods prepared by a hydrothermal route
... Controlled removal of the sur- factants from the mesolamellar precursors resulted in WO 3 nanorods in large quantity [26]. Recently, the synthesis of WO 3 nanorodsat a large scale [27] has been ... high yield of multiwalled WS 2 nanotubes. 2. Experimental 2.1. Synthesis of WO 3 nanorods An aqueous solution containing a mixture of 1.32 g of (NH 4 ) 10 W 12 O 41 ·7H 2 O an...
Ngày tải lên: 19/03/2014, 16:48
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 , ... single step non-catalytic process based on thermal evaporation of silicon monoxide has been established for large- scale synthesis of silica nanowires. Scanning electron microscopy, high-resolution t...
Ngày tải lên: 16/03/2014, 15:18
large - scale synthesis and gas sensing application of vertically
... 411–414. [24] Z.J. Gu, H.Q. Li, T.Y. Zhai, W.S.Yang, Y.Y.Xia, Y.Ma,J.N.Yao ,Large- scale synthesis of single-crystal hexagonal tungsten trioxide nanowires and electrochemical lithium intercalation into ... September 2009 Keywords: Tungsten oxide Nanorod arrays Hydrothermal synthesis Gas sensing Sensor abstract Large- scale vertically aligned and double-sided Co-doped hex...
Ngày tải lên: 20/03/2014, 13:04
Tài liệu Báo cáo khoa học: "Inducing Gazetteers for Named Entity Recognition by Large-scale Clustering of Dependency Relations" ppt
... a large amount of dependency relations in Web documents. To our knowledge, no one else has performed this type of clustering on such a large scale. Wikipedia also produced a large gazetteer of ... con- struction of large- scale MN clusters. We demonstrated with the IREX dataset for the Japanese NER that using the constructed clus- ters as a gazetteer (cluster gazetteer) is a...
Ngày tải lên: 20/02/2014, 09:20
Báo cáo khoa học: "A System for Large-Scale Acquisition of Verbal, Nominal and Adjectival Subcategorization Frames from Corpora" pot
... state -of- the-art performance on all three sets. 1 Introduction Research into automatic acquisition of lexical in- formation from large repositories of unannotated text (such as the web, corpora of ... inspection of unclassifiable examples during development of the classifier. These consisted of e.g. some occurrences of phrasal verbs with complex complementation and with flexib...
Ngày tải lên: 17/03/2014, 04:20
Báo cáo khoa học: "The key role of semantics in the development of large-scale grammars of natural language" pdf
... The key 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 ... 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 semantics which is...
Ngày tải lên: 17/03/2014, 22:20
Báo cáo khoa học: "Large Scale Acquisition of Paraphrases for Learning Surface Patterns" potx
... be the set of all phrases of the form Xp i Y where p i ∈ P . Let S i,X be the set of words that occur in position X of p i and S i,Y be the set of words that occur in posi- tion Y of p i . Let ... (either because of scale or data quality). Our approach on the other hand, finds surface paraphrases; it is more scalable and robust due to the use of simple POS tagging. Also, our...
Ngày tải lên: 23/03/2014, 17:20
Synthesis of large scale sic–sio2 nanowires decorated with amorphous carbon nanoparticles and raman and PL properties
... Synthesis of large- scale SiC–SiO 2 nanowires decorated with amorphous carbon nanoparticles and Raman and PL properties Ryongjin Kim a,b , Weiping Qin a, * , Guodong Wei a , Guofeng Wang a , ... environment. Thermal decomposi- tion of ethanol was used to produce carbon source for synthesis of this nanostructure. Strong enhancement of blue emission band and appearance of a new...
Ngày tải lên: 16/03/2014, 15:08
- large scale acquisition of paraphrases
- large scale acquisition of paraphrases for learning surface patterns
- large scale releases of chemicals
- efficient inference of crfs for large scale natural language data
- the threat of reescalating commitment in a large scale context
- self propagating high temperature synthesis of ultrafine tungsten carbide powders
- a usss case study of large scale industrialized cybercrime