new materials and structures for semiconductor gas sensors

... TULE Research Programme Progress Report 2005 1 New materials and structures for semiconductor gas sensors (NEWGAS) Pekka Kuivalainen1 and Vilho Lantto2. Abstract The aim ... Objectives and Work Plan The aim of the present research consortium is to develop and utilize new materials and structures to fabricate semiconductor gas sensors showing enhanced stability and reduced ... Pt. A new gas measurement system has been built at HUT, which includes gas sources for over ten different gases and a new scanning Kelvin probe to measure the gas responses of the sensor materials. ...

Tài liệu Báo cáo khoa học: "A New Dataset and Method for Automatically Grading ESOL Texts" pdf

... of the Association for Computational Linguistics, pages 180–189,Portland, Oregon, June 19-24, 2011.c2011 Association for Computational LinguisticsA New Dataset and Method for Automatically ... a ceiling for the perfor-mance of our system, we calculate the average corre-lation between the CLC and the examiners’ scores, and ﬁnd an upper bound of 0.796 and 0.792 Pear-son’s and Spearman’s ... analyses of the perfor-180mance of individual systems, as yet there is no pub-lically available shared dataset for training and test-ing such systems and comparing their performance.As it is...

Mechanics and Properties of Composed Materials and Structures doc

... analysis.Numerical Model for Static and Dynamic Analysis of Masonry Structures 23Andreas Öchsner•Lucas F. M. da SilvaHolm AltenbachEditorsMechanics and Propertiesof Composed Materials and Structures 123203002040 ... materials, i.e. for dynamic load and especially impact load. Generally, with increasing strain rateNumerical Model for Static and Dynamic Analysis of Masonry Structures 21_e the strength and ... External force (wind, etc.). b Base acceleration(earthquake)Numerical Model for Static and Dynamic Analysis of Masonry Structures 5contact elements (Fig. 4b2) for the simulation of the reinforcement...

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comparison of single and binary oxide moo3, tio2 and wo3 sol – gel gas sensors

... devices such as gas sensors, are in a crystalline form [6]. Tungsten also forms otheroxides such as WO, W2O3, and W4O3, however, in gas sensing the stable WO3form is used.As for MoO3, ... a simple and versatile method of realisingmetal oxide thin ®lms. Many research efforts are progres-sively employing this technology to explore new and novelsensing materials for gas sensing ... havepromising electrical and optical properties for various appli-cations like ef®cient photolysis, electrochromic devices,selective catalysts and gas sensors [4]. Amorphous and polycrystalline...

plasma - enhanced chemical vapor deposition carbon nanotubes for ethanol gas sensors

... atomicpiling. When CNTs were treated for 5 and 20 s, the amorphous carbondomains are eliminated, and the tubes become smoother and cleaner asshown in Fig.1(b) and (c). After 60 and 90 s, as seen in Fig.1 ... adsorptionproperty that allows CNTs to be made as new gas materials, dependingon their large surface area [6–8] and hollow geometry. Several modelsthat account for the gas sensor applications of CNTs have beenreported ... sensitivity for ethanol. Successful utilization of CNTs in gas sensors may opena new window for the development of novel nanostructure gas devices.© 2008 Elsevier B.V. All rights reserved.1....

semiconductor gas sensors based on nanostructured tungsten oxide

... SE-75121, Sweden¨bMicroelectronics and Materials Physics Laboratories, Uni¨ ersity of Oulu, Linnanmaa, FIN-90570 Oulu, FinlandAbstract Semiconductor gas sensors based on nanocrystallline WO ... and particle growth in a gas stream. Atmospheric air was used as reactive and cooling gas. After evacuation of the UFP formationchamber, a N gas stream of 5 l miny1 and an atmo-2spheric air ... effort to decrease the power consumption 15 and miniaturized low-power gas sensors have beendeveloped with the sensitive layer on a micro-hotplatewx16 . Obviously, it would be desirable for...

Should The U.s. Army Adopt New Policies And Procedures For Responding To Emergency Ammunition Demands potx

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ACADEMIC STUDIES ENGLISH Support Materials and Exercises for SPEAKING & LISTENING pot

... a fact, look8up the information and then report your findings to the group. You don’t haveto stand up and make a formal speech. Just sit in your seat and share theinformation you found.7. ... ideas, and opinions moreoften than you would in an essay. Numbered lists, repetition, and frequent reviews offacts and major headings make it easier for your listener to understand and rememberyour ... essay or informal report. The prewriting, researching, and planningsteps and stages are the same. If you need to review these, look at the modulesWriting Longer Essays and Writing Informal Reports....

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Support Materials and Exercises for WRITING LETTERS docx

... Youwill learn three acceptable formats for business letters: full block, block and modified block.3a. FULL BLOCK FORMATFull block format is the most common format in use today, perhaps because ... beendoing, and the food was fantastic.Thanks for giving us such a good time. We’relooking forward to seeing you in September at our camp for somefishing.Your friends,Pauline and DarylNote ... Be sure to thank the person for the invitation and let them know you appreciated it. ACADEMIC STUDIES ENGLISH Support Materials and Exercises for WRITING LETTERS ...

Support Materials and Exercises for WRITING REPORTS doc

... aid and natural antioxidantAnise Seed useful for nausea and indigestionBasil helps reduce nauseaBay Leaf helps gas, indigestion and headachesCaraway Seed for indigestion and gas Coriander ... their new home.12V THE RESEARCH REPORTA research report can be presented in either a formal or informal format. In thismodule, you will learn how to research, organize and write an informal ... deals mostly withthe informal research report, you should be familiar with the three main types ofreports: the form report, the informal report, and the formal report.1. The Form ReportA great...

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