Due to the nonlinearity of brushless direct current (BLDC) motor, it is difficult to obtain satisfied control characteristics using proportional integral derivative (PID) controller. A novel adaptive fuzzy control method based on high performance speed control is proposed in this…

Cloud Computing is a new application model for decentralized computing which can provide reliable，customized and maximum number of users with minimum resource. The development of cloud computing marks a great leap towards designing a unified，open and flexible educational information platform，sharing…

With the rapid of the deployment of computer systems, people in the modern society are increasingly dependent on the hardware and software systems.  When the demand for computer systems increases, the possibility of crises from computer failure will also increase. …

The diversity and versatility of display devices today imposes new demands on digital elevation models (DEMs). This paper proposes a resizing method for 3D visualization of DEMs based on topographic feature. The proposed method improves seaming carving algorithm to resize…

Electron beam lithography (EBL) is widely used in nano-scale device fabrication and research due to high resolution and excellent flexibility. In this paper, nanometer EBL system based on scanning electron microscope (SEM) is introduced. Its main components include a modified…

To solve the problem of tracking an acoustic source in noise and reverberation environment, a new method is proposed in pursuit of higher accuracy. First, this paper improves the unscented particle filter, which can add the latest measurement information to…

An iris recognition system uses the iris to distinguish the identity of a person using the rich iris texture feature. To effectively remove noise and precisely segment the stable iris region is a crucial stage prior to recognition. Most noises…

Orthogonal frequency division multiplexing (OFDM) systems suffer from large peak-to-average power ratio (PAPR). In this paper we study the discrete wavelet transform (DWT)-based OFDM systems. In particular, we discuss the effect of the decomposition level of each wavelet family in…

In order to deal with the problem of low categorization accuracy of minority class of the uneven forestry information text classification algorithm, this paper puts forward the uneven forestry information text classification algorithm based on weighted Gauss-Newton neural network, on…

The circulating currents of a modular multilevel converter (MMC) is ideally assumed to be the sum of an ac component and dc ac component operating with fundamental frequency. However, as ac current flows through the submodule (SM) capacitors, the capacitor…