نتایج جستجو برای: vacuum electronic devices
تعداد نتایج: 448868 فیلتر نتایج به سال:
Today, Li-ion batteries (LIBs) are the most common rechargeable batteries used in electronic devices. SnO2 with theoretical specific capacity of 782 mAh/g is among the best anode materials for LIBs. In this report, Three-dimensional SnO2 nanowires (NWs) on carbon nanotube (CNT) thin film (SnO2 / CNT) is fabricated using a combination of vacuum filtration and thermal evaporation techniques. The ...
High transparent conductive indium tin oxide/titanium dioxide (ITO/TiO2) nanostructured thin film is prepared by sol-gel dip-coating technique. This method yielded monodisperse ITO nanoparticles with mean diameter of 12 nm. The atomic composition of the Sn within the ITO structure changed from 0-20 wt.%. Through controlled annealing temperature at 550 oC, the result...
Reducing the size of an engineered system is a challenge often faced by designers and nowhere is this more evident than in the field of electronics. The first digital computer known as the Electronic Numerical Intergrator and Computer (ENIAC) was an enormous system constructed from over 18,000 vacuum tubes, 1,500 relays, and hundreds of thousands of resistors, capacitors, and inductors. ENIAC w...
Using of electronic devices, lead to reduce the errors resulting from the use of traditional instruments, however, when using of these devices may also take place various problems for different reasons. What is important is to distinguish between the problems arising from mistake and those from error. The error relates to the measures that apply wrongly by electronic intermediaries, while mista...
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