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The Sloan Digital Sky Survey (SDSS) has released the latest data (DR13) which is the first data release for the MaNGA survey. The massive spectra produced by SDSS is available for large sample research and also data source of rare and special objects like white dwarf main-sequence star (WDMS). Many techniques have been proposed to solve SDSS automatic classification problems with massive spectra and...
For the existing problems of Decathlon Yanjiao logistics center, based on analyzing the operating process of applicable items for cross-docking, the cross-docking operation scheme was presented for Decathlon Yanjiao logistics center. By designing the simulation scheme, the Flexsim simulation model was set up, and the optimal results were analyzed respectively under three different principles of working...
Electric bicycle is very flexible, convenient and environmental, which is the ideal mode of transport for short distance travel. Electric bicycle has become an indispensable important component of the transportation system. The fact is that traffic organization and channelizing design of signal control intersections is not intensive, which can not adapt to the current traffic demand of non-motor vehicle,...
The increasing tendency of container vessel enlargement and the container transportation growth, make people pay more and more attention to the efficiency of the container terminal berths. In order to improve the berth efficiency, this paper focuses on continuous berth allocation problem. Firstly, a penalty cost function is suggested to comprehensively consider the delay of vessel leaving time and...
Positioning method based on Receive Signal Strength (RSS) is one of the outdoor positioning methods that have a wide range of applications in wireless communication networks. Thus, the main purpose of this paper is to investigate RSS fingerprint-based positioning in cellular wireless networks. In this work, we propose a hybrid algorithm that integrates KNearest Neighbor (KNN) location-based fingerprint...
The purpose of this study was to explore the important factors that influence users’ continuance usage behavior toward mobile online group-buying. Based on the characteristics of the mobile Internet, an extension of the UTAUT model is introduced to verify the proposed hypotheses. The structural equation modeling method is used to analyze the empirical data which come from universities in China. The...
A predefined path tracking with the help of Wheeled mobile robots (WMR) is very popular in various modern applications including agriculture, medicine and many more. The application of tracking a certain path can be achieved by using either Trajectory Tracking or Path following method. This paper makes an attempt to design a novel control law which combines the two techniques together in order to...
Although unmanned aerial vehicle (UAV) shows great advantages and some new potential applications in recent years as an effective tool for investigation, fighting and defense, yet, how to give full play to its role still remains the focus of attention. To improve the fighting efficiency of UAV and expand the range of its applications, the obstacle avoidance problem of UAV during autonomous cruise...
Economy, reliability and environmental friendly are primary goals when modeling modern unit commitment problems. In this study, we establish a multi-objective unit commitment model considering the above objectives. In particular, the pricing support for ultra-low emissions is addressed together with startup/shutdown, generation and environment concerns when calculating the operation cost of thermal...
Genetic algorithm has been successfully applied to complexity problems of real-world. But the genetic algorithm is easy to be premature convergence, and full into local optimum. For the ergodicity of chaotic theory is adopted to genetic algorithm optimization, we put forward the improved chaos genetic algorithm. In order to avoid the slow convergence speed and local optimal problems of BP neural network,...
In the modern joint war, the weapon systems portfolio selection is a necessary procedure for military development and research. The research on weapon system portfolio selection has made some achievements. Generally, the multi-objective programming methods and some intelligent algorithms are used to solve the problem. In this paper, the fuzzy clustering analysis and the maximum deviation methods are...
In this paper partially-perturbed particle swarm optimization (PPSO) is applied for the parameter identification in Reaction - Regeneration System Model. Based on the mechanism model, the experimental data are obtained, and the first order plus dead time (FOPDT) mathematical model is established for different groups of parameters. We use the double input-double output (DIDO) Robustness, Tracking,...
In order to measure the fiber parameters accurately and quickly, a kind of optical fiber beam collimation system is studied in this paper. The center of the beam image captured by the CCD camera is fed to the FPGA. Then the FPGA using the fuzzy self-tuning PID to controls multi-dimensional electric platform so that making the fiber vertical to the camera surface and achieving the beam automatic collimation...
This paper designs and implements a Steady State Visually Evoked Potential (SSVEP) intelligent home service system based on Canonical Correlation Analysis (CCA), which realizes that electroencephalogram (EEG) controls home service. The system includes a stimulus module, a data acquisition module, a data analysis module and a controlled module. Experiments show that the correct accepting rate of instructions...
A displacement sensing system with the prototype of magnetic-grating-like hydraulic cylinder is developed. It consists of a signal acquisition module, a signal conditioning module, a signal processing module, a signal isolation module and an electrical stimulator module. The system realizes signal processing with the application of tangent segmentation principle. Tests of this devised system have...
A CNC (Computer Numerically Control) machine is a numerical control machine with the additional component of an on board PC. The PC is alluded to as the machine control unit (MCU). A novel mathematical model for the machine tool feed derive system has been devised on MATLAB. A hardware model of solar powered three axes CNC machine is designed and fabricated which uses the input from the MATLAB. CNC...
Using eddy current method, we developed a simple system to measure the electrical conductivity of material contactlessly. Three coils were used in this method. One coil was used to produce the excitation magnetic field. The other two coils were used to compose the differential detection coil to detect the magnetic field produced by the eddy current. Using this method, we evaluated the electrical conductivity...
In this paper, through researching principles for the bonded PZT drive and analyzing the second class of piezoelectric force - electric couple, a model along the length of PZT-driven model to the mechanical vibration was established based on continuum dynamics. The interaction between the PZT and the structure of the bonding layer was the key factor during investigation. Followed by construction of...
Cruise trajectory optimization for a hypersonic vehicle is a standard optimal control problem. With the use of the direct shooting (DS) method, it is converted to a NLP problem first. Then, the steady-state cruise dynamic equations are described. To solve the multiobjective problem related to the steady-state cruise trajectory optimization, one of the directed search domain (DSD) algorithm, DSD-II,...
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