comparative study of nanocrystalline sno2 materials for gas sensor application

... development of thick ﬁlm materials for tin dioxide based gas sensors enabled the fabrication of sensitiveand relatively selective gas sensors. However, long-term stability of the sensors remains ... 30 nm for synthesized and commercial SnO2, respectively. The temperaturerange for TXRD study of crystallite growth kinetics was chosenby several reasons. The usual process of formation of metal ... to reducing gases [12].To investigate the oxidation activity of synthesized and com-mercial materials, we performed TPR study of SnO2with andwithout Pd (Fig. 6). TPR proﬁle of the synthesized...

Báo cáo khoa học: "A Comparative Study of Parameter Estimation Methods for Statistical Natural Language Processing" potx

... . Performance of the application is measured in terms of character error 2 The result of ME/L2 is better than that reported in Andrew and Gao (2007) due to the use of the variant of L2-regularized ... Because of the high-dimensional nature of natural language, it is often easy to generate an extremely large number of features. The challenge of parameter estimation is to find a combination of ... of the 45th Annual Meeting of the Association of Computational Linguistics, pages 824–831,Prague, Czech Republic, June 2007.c2007 Association for Computational LinguisticsA Comparative Study...

Báo cáo khoa học: "A Comparative Study of Target Dependency Structures for Statistical Machine Translation" ppt

... Proceedings of the 50th Annual Meeting of the Association for Computational Linguistics, pages 100–104,Jeju, Republic of Korea, 8-14 July 2012.c2012 Association for Computational LinguisticsA Comparative ... Japanwuxianchao@gmail.com,sudoh.katsuhito@lab.ntt.co.jp,kevinduh@is.naist.jp,{tsukada.hajime,nagata.masaaki}@lab.ntt.co.jpAbstractThis paper presents a comparative study of target dependency structures yielded by sev-eral state -of- the-art linguistic parsers. Our ap-proach is to measure the impact of these non-isomorphic ... (58.8)Table 2: Comparison of the dependencies of the Englishsentences in the training data. Without () = % of similarroot words; with () = % of similar head words.2008). In terms of head word comparison,...

novel hybrid materials for gas sensing applications made

... amount of SnO2than WO3is present in the hybrid materials. 3.2. Gas response analysisThe gas sensing properties of the different hybrid materials produced were evaluated in terms of the ratio ... 1/250 wt%. For the measurements performed at 250◦C, the response timeto 100 ppb and to 500 ppb of NO2was around 2 min both for thehybrid materials based on WO3and for the pure WO3sensors.It ... P.K. Clifford, D.T. Tuma, Characteristics of semiconductor gas sensors. 1.Steady-state gas response, Sens. Actuators 3 (1983) 233–254.[17] P.K. Clifford, D.T. Tuma, Characteristics of semiconductor...

Báo cáo khoa học: "A Comparative Study of Hypothesis Alignment and its Improvement for Machine Translation System Combination" pot

... Proceedings of the 47th Annual Meeting of the ACL and the 4th IJCNLP of the AFNLP, pages 941–948,Suntec, Singapore, 2-7 August 2009.c2009 ACL and AFNLPA Comparative Study of Hypothesis ... GIZA++, TER, CLA, IHMM stand for scores of systems for four word alignment me-thods. z MBR decoding slightly improves the per-formance over the best single system for both tasks. This suggests ... results of TER-based systems with or without fuzzy matching. We can see that the fuzzy matching improves the per-formance for all cases. This verifies the effect of fuzzy matching for TER...

Báo cáo y học: "Comparative study of control selection in a national population -based case-control study: Estimating risk of smoking on cancer deaths in Chinese men"

... epidemiologic methods; comparative study; smoking; Chinese men. Introduction One of the most important measures for ascer-taining the impact of tobacco on a population is the estimation of the mortality ... smoking was greater for urban males than rural males, both study groups revealed a con-sistent pattern of the effect of smoking on risk of can-cer deaths. TABLE 1. Characteristics of cases and two ... prevalence of smoking between male living spouses of women who died of any cause and those spouses of women who died of some other causes other than smoking related causes. The preva-lence of smoking...

Báo cáo y học: "Comparative study of serum Na+ and K+ levels in senile cataract patients and normal individuals"

... Department of Ophthalmology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran 2 Department of Biochemistry and Nutrition, School of Medicine, Iran University of Medical ... 1. Introduction One of the often seen consequences of the aging process is the development of senile cataract, a disease that affects one of our most precious gifts, that of sight. This so-called ... [31,32,33]. One of the proposed risk factors for cataract formation is serum Na+ level [34,35]. Lens has high content of potassium and low content of sodium. Lens K+ level is 125 mmol/kg of lens...

A comparative study of discourse structures and some major linguistic features of international declarations and international conventions on human rights part 1

...

A comparative study of discourse structures and some major linguistic features of international declarations and international conventions on human rights part 2

... OF CONTENTS iiABBREVIATIONS viChapter I: Introduction1.1 General introduction 11.2 Aims and Objectives of the study 11.3 Scope of the study 21.4 Method of the study 21.5 Organization of ... Department of CFL, VNU for their enthusiasm during my M.A. course.Lastly, I wish to thank the family members and friends of mine for their constant encouragements and supports.iTABLE OF CONTENTS ... 103.3 A study of the discourse structure and some major linguistic features of the International Declaration on Human Rights 113.3.1 The Beginning 113.3.1.1 The Title and Preamble of the Declaration...

A comparative study of discourse structures and some major linguistic features of international declarations and international conventions on human rights part 3

... (1996), Pragmatics, Oxford University Press, Oxford. 4020. Swannell J. (1994). The Oxford Modern English Dictionary, Oxford University Press, Oxford.41remain the basis of foreign language knowledge, ... though retained for special purposes. This type of words often appear in the works of formal style in general, in legal documents in particular. Therein; hereby; thereof, whereof, notwithstanding;…are ... the signature of the Members of the Council of Europe. It shall be ratified. Ratifications shall be deposited with the Secretary-General of the Council of Europe. (Articles 59.1 of European Convention...

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