wo3 sensor response according to operating temperature experiment and modeling
wo3 sensor response according to operating temperature experiment and modeling
... Sensors and Actuators B 124 (2007) 24–29 WO 3 sensor response according to operating temperature: Experiment and modeling M. Bendahan ∗ ,J.Gu ´ erin, R. Boulmani, K. Aguir Laboratoire Mat´eriaux ... Bendahan et al. / Sensors and Actuators B 124 (2007) 24–29 25 Table 1 Gas sensor responses S vs. ozone concentration and different fabrication methods Sensors Fabrication...
Ngày tải lên: 20/03/2014, 13:12
Intercultural adaptability of oekom research AG’s Corporate responsibility Rating (CRR) According to criteria of social and cultural sustainability doc
... advantages of green policies to companies, to contribute to the greening of the economy by introducing criteria to compare and rate the ecological performance of companies and industries. The positive ... as the U.S and the U.K., the environmental, social and ethical investments grew up to 10% of the whole investment market. This approach and development is due to i...
Ngày tải lên: 17/03/2014, 03:20
Báo cáo khoa học: "Ranking Text Units According to Textual Saliency, Connectivity and Topic Aptness" potx
... saliency and connectivity of text fragments. Following Hoey (1991), a simple way of com- puting lexical cohesion in a text is to segment the text into units (e.g sentences) and to count non-stop ... topical and germane to the text the word is likely to be, and • the greater the number of times two text units share a word, the more connected they are likely to be....
Ngày tải lên: 23/03/2014, 19:20
gas sensing properties of wo3 doped rutile tio2 thick film at high operating temperature
... undoped and two WO 3 doped TiO 2 sensors exhibited a gas sensing property similar to that of a p-type, semiconductor gas sensor. The sensitivity to gases is defined as (R a À R g )/R g , where R a and ... sensitivity of the sensor. On the other hand, ther- mally stable, rutile TiO 2 based gas sensors can tolerate high heat treatment temperature levels. Therefore, rutile TiO 2 based...
Ngày tải lên: 19/03/2014, 16:48
gas sensor response of pure and activated wo3 nanoparticle
... Conductance response of an as-deposited Au-activated WO 3 sensor upon CO (50 and 100 ppm) and NO 2 (5 and 10 ppm) exposures at 700 K operating temperature. 132 L.F. Reyes et al. / Sensors and Actuators ... the sensor is operated at 400, 525, and 700 K. At optimal operating temperatures, the sensor is ∼20 and ∼2000 times more sensitive to H 2 S than to NO 2 and...
Ngày tải lên: 19/03/2014, 16:48
The chart below shows the sleep patterns of people in five different occupations according to a Canadian study
... tend to sleep in two 3-hour blocks: one between 7 and 10 a.m. and another from 4 to 7 p.m. Another occupation associated with broken sleep schedules is that of doctors. They tend to retire to ... babies do. Typically, they will sleep from 10 p.m. and be awoken at 1 a.m. to comfort their babies for a couple of hours. They then go back to bed to ... 1 a.m. and start the...
Ngày tải lên: 04/10/2012, 10:02
Báo cáo y học: "Maternal Outcomes According to Placental Position in Placental Previa"
... factors of excessive bleeding and peripartum hysterectomy, even if placenta previa does not exist [3,6,9]. Therefore Faiz et al. claimed that age, parity, history of cesarean section and history ... (posterior group). And then they are com- pared to each other. Logistic regression was used to control for confounding factors. Results: In the anterior group, regardless of confound...
Ngày tải lên: 25/10/2012, 10:56
Báo cáo y học: " Eradication rate of Helicobacter pylori according to genotypes of CYP2C19, IL-1B, and TNF"
... distinguished as follows: a 131-bp band for the 681G allele and a 105-bp band for 681A allele, with a 191-bp their common band, and a 377-bp band for 636G allele and a 255-bp band for 636A allele, with ... Medical Center, Nagoya University from July 2004 to October 2005. The participants aged 20 to 69 years were classified into three group according to CYP2C19 genotype; rap...
Ngày tải lên: 31/10/2012, 16:57
Exergoeconomic performance optimization of an endoreversible intercooled regenerative Brayton combined heat and power plant coupled to variable-temperature heat reservoirs
... performed energy and exergy analyses for CHP-based district energy systems and exergy methods are employed to evaluated overall and component efficiencies and to identify and assess thermodynamic ... inlet temperature of hot-side heat reservoir to environment temperature 2 τ ratio of the inlet temperature of cold-side heat reservoir to environment temperature 3...
Ngày tải lên: 05/09/2013, 14:59
IT WAS, ACCORDING TO
... didn’t carry over to the E.T. video game for Atari 2600. According to one Web site, “E.T. is notorious for being what many believe to be the worst game ever.” As the rumor goes, to get rid of all ... drinks to paper towels to chocolate bars to hair dryers, the list of fallen products is like a roll call of the dearly departed. In the U.K., there was a similar version of th...
Ngày tải lên: 17/10/2013, 18:20