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Nowadays, some defects exist in the power system such as power shortage during the peak time and power imbalance. The problem can be alleviated effectively when peak-valley TOU (time of use) tariff is implemented. Furthermore, the user classification is the primary task of implementing peak-valley TOU (time of use) tariff. In this paper, a power user classification strategy of multi-view clustering...
ABSTRACT-This paper introduces an original waveform matching based data-processing method for TOF ranging. The key idea is to decrease measurement error by establishing contact between waveform and distance. The method consists of three steps: defining waveform parameters mathematically, establishing contact between parameters and distance, and deciding the weight of each parameter. This method is...
Sign Language Recognition (SLR) aims at translating the Sign Language (SL) into speech or text, so as to facilitate the communication between hearing-impaired people and the normal people. This problem has broad social impact, however it is challenging due to the variation for different people and the complexity in sign words. Traditional methods for SLR generally use handcrafted feature and Hidden...
In the oxygen-containing defect of insulation, corona discharge caused high temperature is the main reason for the cleavage of chemical bonds, which would lead the insulation failure. To address the problems, some of ReaxFF simulations are carried out to reveal the aerobic pyrolysis of widely-used insulation Kapton-type polyimide. The effects of temperature and its elevation gradient on the disintegration...
An LDPC-coded BICM-ID scheme with nonuniform signaling (NS) for 9-QAM and 12-QAM is proposed, which is designed by mapping Huffman code onto constellations. We demonstrate that proposed NS scheme outperforms LDPC-coded 8-QAM by 0.8 dB.
Fault diagnosis for scroll compressors has drawn significant attention over the past few years. The process of fault diagnosis includes three major parts: signal processing, feature extraction and fault condition classification. In this paper, Singular Value Decomposition (SVD) is introduced in signal processing of a scroll compressor for the purpose of noise reduction. After removing noise from the...
Pattern matching algorithms are very important in both data mining and the intrusion detection system. Efficiency and accuracy BM algorithm for text matching is relatively high, but, when a large number of repeated and complex characters to match in the network, the efficiency will be lower. Aiming at BM algorithm's efficiency of matching is lower in the network environment, an improved algorithm...
In the Ultrasonic detection of welding defects, the defect echo signal carries the important feature information of sampling object. To solve the problem of accurate extraction of defect signal in the Ultrasonic detection of welding defects, the ICA algorithm based on Particle Swarm Optimization is proposed to extract the ultrasonic signal of welding defects, and using this algorithm to denoising...
As sensor nodes are usually installed in harsh environments and nobody attends them, the character means it's easy for the networks to be subjected to all kinds of attacks. Moreover, the networks have limited computer power, communication power and energies. Therefore, in the environment, a well-organized and lightweight user authentication is a vital issue when a user possesses right to use the data...
In this paper, the problem of flight-path angle synchronized tracking for a network of fixed-wing aircraft is addressed under a switching interaction topology. The non-minimum phase feature of the input-output dynamics is systematically taken into account in control design. First, a normal linear model of the longitudinal dynamics is obtained by linearizing the original model and employing a coordinate...
The use of minimally invasive procedures for breast tumor diagnosis and treatment, such as needle biopsy and radio frequency ablation (RFA), is steadily increasing. Accurate needle insertion requires solving the problems of tissue deformation and target displacement. Breast needle insertion guided by imaging techniques such as ultrasound is widely used to evaluate suspicious masses within the breast...
The online detection of end-effector motion states and wafer stick-slip on a wafer transfer robot is crucial in accessing the quality of trajectory planning and improving the performance of robotic control system. This paper presents a new integrated system for detecting end-effector motion states (position and velocity) and wafer stick-slip on a wafer transfer robot. The system mainly contains a...
Carrying load manually is a highly strenuous task and costs additional energy during walking. The forward velocity and vertical displacement of the body center of mass (COM) changes along with the inverted pendulum-like motion. Thus the interaction between the load and carrier varies as well. The interaction between load and carrier has a big influence on the comfort and energetics of the carrier...
A new method is introduced for machine condition monitoring and performance evaluation, which is easy to implement and suitable for engineering applications. The approach called spectrum sparseness is proposed based on the theory of sparse representation. In this paper, the proposed scheme is applied to the rolling bearing performance degradation assessment. Practical experiment results show that...
This paper presents a control scheme for transmission networks by using load-side controllers which cooperate with automatic generation control (AGC) to restore the power system frequency. A switched consensus-based distributed controller is designed for each load bus in the transmission network. Once the frequency exceeds a pre-selected threshold, each load-side controller will start to discover...
In this paper, the spatial query algorithm based on the direction and distance of the MOIS-tree index structure is studied. MOIS-tree is a special kind of index structure. The intermediate nodes of all its child nodes according to their geometric position meet some order relations which make it possible for the rapid positioning in the query of the intermediate nodes. The pruning rules are designed...
In this paper, we propose a l2,1-norm based discriminative robust transfer learning (DKTL) method for domain adaptation tasks. The key idea is to simultaneously learn discriminative subspaces by using the proposed domain-class-consistency (DCC) metric, and the representation based robust transfer model between source domain and target domain via l21-norm minimization. The DCC metric includes two parts:...
The existing kW-class air-cooled proton exchange membrane fuel cells (PEMFCs) are often controlled by tuning the purge valve, the cooling fan based on the purge interval and the optimum temperature curves recommended by the manufacturers. However, even if the fuel cell temperature can timely track the recommended curves, the individual cell voltage uniformity may be deteriorated while the voltage...
The leader-following consensus problem for multiple Euler-Lagrange systems was studied recently by the adaptive distributed observer approach under the assumptions that the leader system is neurally stable and the communication network is jointly connected and undirected. In this paper, we will study the same problem without assuming that the leader system is neutrally stable, and the communication...
A temperature control platform is designed for a 4L jacketed reactor based on using a commercial software package named LabVIEW. The hardware of the temperature control platform includes an electric heater, an inverter compressor, a thermal exchange bath, and a programmable logic controller (PLC) that is mainly used to acquire and transmit real-time data along with implementation of the control command...
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