Gross agricultural product is an important indication to measure the agricultural development level of a region. It would be affected by many factors,having the characteristics of non- linearity. For this reason,LM- B...Gross agricultural product is an important indication to measure the agricultural development level of a region. It would be affected by many factors,having the characteristics of non- linearity. For this reason,LM- BP neural network was put forward as the model and method for predicting gross agricultural product. Taking the indications of the sown area of crop,the output of grain,sugarcane,cassava,tea,meat,aquatic products,turpentine and camellia seed,etc. as inputs,during 2000 to 2012 in Guangxi,the gross agricultural product data from the analysis of simulation experiment show that the prediction of LM- BP neural network fits well with actual results.展开更多
The transition from a spark discharge to a constricted glow discharge in atmospheric air was studied with a capacitor coupled pin-to-water plasma reactor. The reason of the transition is considered to be of various fa...The transition from a spark discharge to a constricted glow discharge in atmospheric air was studied with a capacitor coupled pin-to-water plasma reactor. The reason of the transition is considered to be of various factors, namely the change of the air gap due to the polarization of water molecules by the electric field, the feedback effect of the capacitors, and the ion trapping mechanism. The effects of the frequency of the power supply, inter-electrode gap, and coupled capacitance on the discharge transition were also investigated.展开更多
Transparent conducting Zn?Sn?O films were deposited on Polypropylene adipate thin-film substrates at low temperature by r. f. magnetron sputtering. The structural, electrical and optical properties of the deposited fi...Transparent conducting Zn?Sn?O films were deposited on Polypropylene adipate thin-film substrates at low temperature by r. f. magnetron sputtering. The structural, electrical and optical properties of the deposited films were investigated. All the obtained films are of amorphous structure and have a very good adhesion to the substrates. The resistivity, carrier concentration and Hall mobility of the film are 1.3×10?2 Ω·cm, 4.1×1019 cm?3 and 12.4 cm2· V?1· s?1, respectively. The transmittance of the film reaches 82%.展开更多
In this paper,the control strategies for a new hyperchaotic system is investiga-ted.Several kinds of feedback controllers are constructed,such as the linear,speed,nonlinear doubly-periodic function feedback controller...In this paper,the control strategies for a new hyperchaotic system is investiga-ted.Several kinds of feedback controllers are constructed,such as the linear,speed,nonlinear doubly-periodic function feedback controllers.These controllers are used to prevent the new hyperchaos becoming an unstable equilibrium.Finally,numerical simulations are used to verify the effectiveness of the proposed controllers.展开更多
基金Supported by Science and Technology Research Project of Guangxi University(2013LX143)
文摘Gross agricultural product is an important indication to measure the agricultural development level of a region. It would be affected by many factors,having the characteristics of non- linearity. For this reason,LM- BP neural network was put forward as the model and method for predicting gross agricultural product. Taking the indications of the sown area of crop,the output of grain,sugarcane,cassava,tea,meat,aquatic products,turpentine and camellia seed,etc. as inputs,during 2000 to 2012 in Guangxi,the gross agricultural product data from the analysis of simulation experiment show that the prediction of LM- BP neural network fits well with actual results.
基金supported by National Natural Science Foundation of China (Nos.50177002,10475014)
文摘The transition from a spark discharge to a constricted glow discharge in atmospheric air was studied with a capacitor coupled pin-to-water plasma reactor. The reason of the transition is considered to be of various factors, namely the change of the air gap due to the polarization of water molecules by the electric field, the feedback effect of the capacitors, and the ion trapping mechanism. The effects of the frequency of the power supply, inter-electrode gap, and coupled capacitance on the discharge transition were also investigated.
基金the National Natural Science Foondation of China(Grant No.60276044)Ministry of Education of China Science and Technology Study Accented Term(02165)
文摘Transparent conducting Zn?Sn?O films were deposited on Polypropylene adipate thin-film substrates at low temperature by r. f. magnetron sputtering. The structural, electrical and optical properties of the deposited films were investigated. All the obtained films are of amorphous structure and have a very good adhesion to the substrates. The resistivity, carrier concentration and Hall mobility of the film are 1.3×10?2 Ω·cm, 4.1×1019 cm?3 and 12.4 cm2· V?1· s?1, respectively. The transmittance of the film reaches 82%.
基金supported by the Special Scientific Foundation of Yulin Normal University(No.2011YJZD12)the Scientific Research Foundation of Guangxi Education Office(200911LX356)
文摘In this paper,the control strategies for a new hyperchaotic system is investiga-ted.Several kinds of feedback controllers are constructed,such as the linear,speed,nonlinear doubly-periodic function feedback controllers.These controllers are used to prevent the new hyperchaos becoming an unstable equilibrium.Finally,numerical simulations are used to verify the effectiveness of the proposed controllers.
