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This paper elaborates how to make full use of teaching conditions, implement project teaching method in Computer Basic Course in order to intensify students' application skills. It also expounds on the steps of project design and class implement in the chapter of “Internet network application” by using the specific case “Network Music Appreciation.” It puts an emphasis on the teaching characteristics...
The average particle sizes of nanoscale (Ba0.8Sr0.2)(Ti0.9 Zr0.1)O3 ceramic powder (nano-BSTZ) was approximately 73nm. Polyvinylidene fluoride (PVDF)/nano-BSTZ composite films with various contents of the nano-BSTZ were screen-printed on indium tin oxide glass substrates. From the XRD patterns, PVDF was the semicrystalline type polymer. The content of the nano-BSTZ increased from 10 wt% to 50 wt%,...
A bottom contact pentacene based organic thin film transistor (OTFT) was fabricated in this paper. Pentacene thin film acting both as gas sensing layer and the active layer was formed by vacuum evaporation and was characterized by atomic force microscopy (AFM) and x-ray diffraction (XRD). The results show that the film is highly ordered and has a polycrystalline morphology. The current-voltage characteristics...
The frequency response and the sensitive mechanics of the ST cut quartz SAW sensor with two-port resonator and FPOL sensitive film are theoretically analyzed. The factors affecting the frequency response and the detective sensitivity are systematically researched with the P-matrix method. The results show that, it is necessary to properly choose the width, the thickness and the material parameters...
Inorganic nanoparticles SnO2 and In2O3 were dispersed using an in situ synthesis technique in one of the polyynes polymer, namely poly-2, 5-dimethoxyethynylbenzene(PDMEB) to prepare organic-inorganic nanocomposites PDMEB/SnO2 and PDMEB/In2O3. The nanocomposites were characterized by FT-IR, which highlighted the chain organization and the plasticizing effect of the nanoparticles on the polymers. Laser...
The objective of this paper is to realize a UV sensor with an Al/TiO2/ITO structure and the high quality TiO2 thin films were grown on ITO substrates prepared by sputtering and the sol-gel method at 300degC. The proposed UV device adopted metal semiconductor metal (MSM) light-dependent resistor has characteristics of varying film thickness, and high photo-electric and stability. The photo-electric...
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