micro - machined wo3 - based sensors with improved characteristics

... 2009 Available online 27 May 2009 Keywords: Micro- machined gas sensor Air pollutant oxidizing gases Selectivity abstract Characteristics of WO 3 -based micro- machined sensors prepared using modified technologies ... the characteristics of WO 3 - based micro- machined sensors by modifying the formation process of sensing layers. The sensor response of the micro- sen...

Ngày tải lên: 20/03/2014, 13:04

... 397 (2001) 238–243. [8] W. Yu-De, C. Zhan-Xian, L. Yan-Feng, Z. Zhen-Lai, W. Xing-Hui, Electri- cal and gas-sensing properties of WO 3 semiconductor material, Solid-State Electron. 45 (2001) 639–644. [9] ... catalytic activity of SnO 2 -based gas sensors, Sens. Actu- ators B 3 (1991) 205–214. [4] K.D. Schierbaum, Engineering of oxide surfaces and metal/oxide inter- faces for chemical sens...

Ngày tải lên: 19/03/2014, 16:48

... Ž. Sensors and Actuators B 60 1999 71–77 www.elsevier.nlrlocatersensorb Influence of binders on the sensing and electrical characteristics of WO -based gas sensors 3 Jong-In Yang a , ... electrical characteristics of WO -based n-type semiconductor gas sensors are investigated. Grain sizes show a slight variation 3 according to the employed binders. In the case of WO films fabricat...

Ngày tải lên: 20/03/2014, 13:04

... Hydrothermally synthesized WO 3 nanowire arrays with highly improved electrochromic performance† Jun Zhang, Jiang-ping Tu, * Xin-hui Xia, Xiu-li Wang and Chang-dong Gu Received 14th December 2010, Accepted ... WO 3 films prepared with (a) and without ammonium sulfate (b), i.e. micro- brick film and nanowire array film, respectively. As can be seen from the CVs, the current density of the...

Ngày tải lên: 20/03/2014, 13:04

... using confidence-weighted classifiers with transition -based dependency pars- ing yields results comparable with the state-of-the- art results achieved with Support Vector Machines - with faster training ... our ex- periments with using CW-classifiers in transition- based parsing. 5.1 Online classifiers We compare CW-classifiers with other online al- gorithms for linear classific...

Ngày tải lên: 20/02/2014, 04:20

... dia- logue systems based on the Information State ap- proach (Traum and Larsson, 2003). GoDiS has been adapted to several different dialogue types, do- mains, and languages, including menu -based ... capabilities of the GoDiS dia- logue manager, and the concept of MMD, we believe that a Speech Cursor provides a powerful and user- friendly way of interacting with menu -based inter- faces...

Ngày tải lên: 07/03/2014, 22:20

... as arc-standard transition -based algorithm (Nivre, 2004). Nivre (2003) proposed another transition -based algorithm, known as arc-eager al- gorithm. The arc-eager algorithm processes right- dependent ... drawbacks of shift-reduce parser could be resolved by incorpo- rating top-down information such as root finding. This work presents an O(n 2 ) top-down head- driven transition -based parsi...

Ngày tải lên: 16/03/2014, 19:20

... chunk Recall. F = F-score. Brill- POS = fast TBL with Brill’s POS tags. Tri-STAG = fast TBL with supertags given by Srinivas’ trigram- based supertagger. SNoW-STAG = fast TBL with supertags given ... section 0 2-1 4 and 2 1-2 4, and it is tuned with 44K words in WSJ section 19. We use this supertagger to supertag section 1 5-1 8 and sec- tion 20. We train an NP Chunker on sect...

Ngày tải lên: 17/03/2014, 06:20

... The sensing Sensors and Actuators B 89 (2003) 68±75 * Corresponding author. Tel.: 4 4-1 18 9-3 16346; fax: 4 4-1 18 9-3 16632. E-mail address: s.c.e.tsang@reading.ac.uk (S.C. Tsang). 092 5-4 005/02/$ ... perhaps on the ¯ow characteristics/ porosity within the powder. The sensi- tivity enhancement with the decrease of optimum tempera- ture for NO detection in air associated w...

Ngày tải lên: 19/03/2014, 16:47