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The new method of BP neural network and its application in restoration of vibration clipped data are briefly introduced. According to the familiar phenomenon of clipped data during vibration and shock engineering testing, it is calculated and restored through modeling and function approaching by BP network with the right information in clipped data. Simulation result and practical application show...
Carbon nanotubes (CNTs) on a glass substrate at a dramatic low temperature was obtained by a radio frequency plasma enhanced thermal chemical vapor deposition. Nickel film was heated and activated at 450°C with 2400 W rf plasma power, the deposition of the CNTs was performed for 60 minutes with 600 W, 1500 W and 2400 W rf plasma power. The diameters of the CNTs obtained are from 8 to 40 nm and the...
As we know, the unsatisfactory field emission from the films by electrophoresis is resulted from the weak adhesion. The main aim of this paper is to improve the adhesion surrounding electrophoresis technologies. In addition, A simple controllable method is reported for the coating of ZnO nanowires with Ag nanoparticles and ZnO/Carbon nanotubes (CNT) composite.
The controllable growth processes of ZnO nanowires by evaporation of metal zinc with high purity and its luminescence properties have been investigated in detail. Firstly, the power of ZnO nanowires with high yield and homogeneous dimension was synthesized using the special quartz boat at 600°C. Then, the oriented ZnO nanowires with about 20nm diameter were synthesized by using a 90nm-thick layer...
As we know, the unsatisfactory field emission from the films by electrophoresis is resulted from the weak adhesion. The main aim of this paper is to improve the adhesion surrounding electrophoresis technologies. The technique we applied is referred to employ both organic binders and inorganic solution simultaneously. In addition, the influences of the applied voltage, inter-electrode distance and...
An architecture for carbon nanotube field emission display based on screen-printing process is presented in this paper. Both the CNT film of cathode and phosphor layer of anode are prepared by screen-printing process. When the space of between cathode and gate electrode and between anode and gate electrode are 0.1 mm and 2.5 mm respectively, very good control ability of gate electrode can be achieved...
Amorphous silicon nanowire arrays have been successfully prepared by thermal evaporation under electric field. The dependence on electric field of the growth of amorphous silicon nanowires is studied with the help of scanning electron microscope (SEM), energy disperse X-ray spectroscopy (EDX) attached to SEM, transmission electron microscopy (TEM). The results show that silicon nanowires grown along...
The principle of measuring the quenching-hardness for the machine elements is the Hall zero-magnetic flux type of principle (i.e. a closed-loop principle), and the formula of the steady-state error for the Hall zero-magnetic flux system is deduced, and the conclusion that the larger the amplifier amplification in the Hall zero-magnetic flux system, the smaller the steady-state error is reached.
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