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This paper proposes an alternative design of expanded proximate time-optimal servomechanism (PTOS) controller for typical servo systems characterized by an integrator cascaded with a damping block. The control law is parameterized by the damping ratio and natural frequency of the closed-loop poles within a speed-dependent linear region. The control scheme aims to accomplish maximum acceleration or...
Due to the effects of nonorthogonality, scale factor and zero-shifts, Three-axis Fluxgate Magnetometers (TFMs) with the attitude changes have certain errors. Therefore, it's quite necessary to establish a calibration method to get high precision magnetic information. Back Propagation Artificial Neural Network (BPANN) algorithm is used to correct the system errors of measured data in this paper. The...
Magnetic interference generated by the air-borne platform is one of the most common system noises in aero-magnetic survey. The noise can be divided into 3 parts as the permanent, the induced and the eddy-current fields. A new air-borne platform called the Unmanned Aerial Vehicle (UAV) can be designed and manufactured with low magnetic interference. Analyzing the test measured data has shown that the...
Dye wastewater is representative of highly colored effluent that is resistant to biodegradation and should be decolorized before discharge. The investigation into the decolorization and degradation of simulated dye wastewater containing the azo dye C.I. Acid Orange 7 (AO7) with simultaneous electricity generation in microbial fuel cells (MFCs) is described. Electrons obtained from organics oxidation...
By analyzing the working process of twin valve filter itself and the logical relationship among every single process, control process is designed to achieve the specified result. The design of automatic control is achieved through the use of Mitsubishi's PLC. This control is reliable, flexible and economical.
Introducing the sensor spectral response into the wavelet-based image fusion methods may produce images closer to which obtained by the ideal sensor. But the wavelet-based image fusion methods are complex because of the wavelet decomposition. This paper presents a simplified image fusion method using sensor spectral response which derives from a wavelet-based one, but need not to do the wavelet decomposition...
Lead dioxide catalyzed cathode (PbO2) which has high overpotential and electrode potential with low cost was tested in microbial fuel cells (MFCs) for sulfide removal in this study, compared with traditional platinum based carbon cathode (Pt/C). The maximum power density of 997.26±20.20 mW/m2 was realized, with sulfide removal efficiency as high as 88.73±4.37%, both showing advantage to Pt/C cathode...
Dynamic obtrusive light is one of latest light pollutions. In the general situation, the human eye can correctly observe and judge the outside things, such as the size, the shape, the color and so on. If the light color is much too complicated, the color area too small or the change of multicolor light too quick, the resolving capacity and the adaptive capacity of the human eye have a decrease. The...
Scientific and rational evaluation results depend on the indicators. Therefore, selecting the indicators which accorded with the characteristics of the target becomes the key for establishing the evaluation model. In this study, Delphi method was used to select the indicators. The results showed that the selected indicators are suitable for evaluating the safety of the navigation environment in Three...
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