gas sensing characteristics and porosity control of nanostructured films

... thus of considerable interest and importance to examine the detailed gas sensing properties of nanostructured films base d on TiO 2 nanotubes. For semiconductor gas sensors, the porosity of sensing ... utility factor of the sensing film or a decrease in the accessibility of the target gas. Thus, the effect of the porosity of sensing films on the sensor response...

Ngày tải lên: 19/03/2014, 16:48

... volume. 3.4. Gas sensing characteristics As stated above, the gas responses of the R5 and R0.5 powders were negligible. Thus, the gas responses of the R30-RH and R30 240 C Y. Lee et al. / Sensors and ... the effective gas diffusion (Fig. 5). The gas response was improved fur- Fig. 7. Dynamic sensing transients of (a) R30-RH and (b) R30 sensors and (c) gas res...

Ngày tải lên: 19/03/2014, 16:48

... S.K. Bhatti, Effect of soybean oil biofuel blending on the performance and emissions of diesel engine using diesel-rk software, International journal of engineering science and technology, 4539-4555, ... Canakci, ‘Determination of performance and combustion characteristics of a dieselengine fueled with canola and waste palm oil methyl esters’, Int. journal of Energy C...

Ngày tải lên: 05/09/2013, 16:11

... electrical drives, use of various sensors and control algorithms is done to control the speed of the motor using suitable speed control methods. The basic block diagram of an electrical drive ... MATLAB Simulink and the effects of various parameters such as rotor and stator resistances and inductances were analysed. Also different control algorithms such as P, PI...

Ngày tải lên: 18/12/2013, 22:06

Ngày tải lên: 03/01/2014, 19:44

... of lawlessness and 2) the focusing of all the forces of society on the development of self -control and temperance in the use of alcoholic beverages (Fosdick and Scott, p. ix). With repeal of ... when and where (e.g., legal drink- ing ages, hours of operation, type of establishment, presence or absence of food, types and amounts of beverages). e stated inten...

Ngày tải lên: 15/02/2014, 19:20

... VNU Journal of Science, Natural Sciences and Technology 26 (2010) 183-190 183 Study on the characteristics and catalytic properties of Pt/SBA-15 in the selective oxidation of D-Glucose Tran ... activity and selectivity in the oxidation of glucose. When increasing the content of Pt loading, most Pt nanoparticles aggregated outside the channels of SBA-15 with size...

Ngày tải lên: 05/03/2014, 11:21

... leaflet clo- sure during nyctinasty, and that fluxes of K + and Cl – into and out of dorsal and ventral motor cells mediate the response. However, the rapidity of leaf closure in the dark (lag time ... been inferred from the effects of red and far-red light on the sur- face potential of roots and oat ( Avena) coleoptiles, where the lag between the production of Pfr an...

Ngày tải lên: 07/03/2014, 21:20

... ratio). The straight and parallel stripes (referred to Figs. 4b and 4c)on the surface of the rods and hollow tubes may result from the aggregates of the smaller and finer nanorods of ∼10 nm in di- ameter ... size, and crystalline phase can be controlled by changing the hydrothermal parameters such as reaction temperature and pressure, pH values, sol com- position, type of t...

Ngày tải lên: 20/03/2014, 13:07