scholarly journals Visualization analysis method based on multidimensional scale transformation for indicators on simulation data of weapon system

2021 ◽  
Vol 1983 (1) ◽  
pp. 012081
Author(s):  
Lizhen Zheng ◽  
Lu Gao ◽  
Tonggang Yu
Keyword(s):  
Scale Transformation ◽  
Weapon System ◽  
Analysis Method ◽  
Simulation Data ◽  
Visualization Analysis

System Identification of TEG Themostatic System

2014 ◽  
Vol 551 ◽  
pp. 384-388 ◽  
Author(s):  
Dong Jing Yang ◽  
Jin Wu Gao ◽  
Le Lun Jiang ◽  
Tan Xiao
Keyword(s):  
System Identification ◽  
Control Strategy ◽  
Measuring Instrument ◽  
Analysis Method ◽  
Simulation Data ◽  
Arx Model ◽  
Data Matching ◽  
New Type ◽  
Matching Degree ◽  
Lower Temperature

Thrombelastograph device (TEG) is a measuring instrument of blood viscoelastic properties during coagulation. The measuring temperature of TEG is fixed at 37oC while in some surgery cases, lower temperature surroundings may be adopted. Therefore a new type of TEG with a controllable themostatic system has been designed to mimic various temperature surroundings in surgery. In this paper, a small-sized high accuracy thermostatic system for TEG was designed and its system identification was built to facilitate the development of control strategy. ARX model was supposed to analyze the system identification of the thermostatic system by Matlab System Identification Toolbox. Residual analysis method was adopted to verify the identified model. The results showed that the simulation data of ARX model was consistence with the measured data (matching degree was about 93%). Transfer function of the system can be applied to develop its control strategy.

scholarly journals Automated Processing for Flood Area Detection Using ALOS-2 and Hydrodynamic Simulation Data

2020 ◽  
Vol 12 (17) ◽  
pp. 2709
Author(s):  
Masato Ohki ◽  
Kosuke Yamamoto ◽  
Takeo Tadono ◽  
Kei Yoshimura
Keyword(s):  
Computation Time ◽  
Synthetic Aperture ◽  
Analysis Method ◽  
Simulation Data ◽  
Flood Simulation ◽  
Hydrodynamic Simulation ◽  
Automated Processing ◽  
Fully Automatic ◽  
Flood Detection ◽  
Disaster Mapping

Rapid and frequent mapping of flood areas are essential for monitoring and mitigating flood disasters. The Advanced Land Observing Satellite-2 (ALOS-2) carries an L-band synthetic aperture radar (SAR) capable of rapid and frequent disaster observations. In this study, we developed a fully automatic, fast computation, and robust method for detecting flood areas using ALOS-2 and hydrodynamic flood simulation data. This study is the first attempt to combine flood simulation data from the Today’s Earth system (TE) with SAR-based disaster mapping. We used Bayesian inference to combine the amplitude/coherence data by ALOS-2 and the flood fraction data by TE. Our experimental results used 12 flood observation sets of data from Japan and had high accuracy and robustness for use under various ALOS-2 observation conditions. Flood simulation contributed to improving the accuracy of flood detection and reducing computation time. Based on these findings, we also assessed the operability of our method and found that the combination of ALOS-2 and TE data with our analysis method was capable of daily flood monitoring.

Fault Signature Analysis Based on Transient Current for Induction Motors

2010 ◽  
Vol 44-47 ◽  
pp. 1807-1811
Author(s):  
Feng Lv ◽  
Hao Sun ◽  
Wen Xia Du ◽  
Shue Li
Keyword(s):  
Fault Diagnosis ◽  
Induction Motors ◽  
Scale Transformation ◽  
Stationary Condition ◽  
Analysis Method ◽  
Broken Rotor Bars ◽  
Multi Scale ◽  
Stator Current ◽  
Time Varying Frequency ◽  
Basic Characteristics

The characteristics of broken rotor bars in induction motors are reflected in the abnormal harmonic of the stator current. At present, fast Fourier transform( ) and time-varying frequency spectrum analysis method are used in such fault diagnosis, but non-stationary motors operation can bring a certain difficulties to the monitoring and diagnosis. This paper studies the basic characteristics of wavelet transform, adopting the wavelet analysis technologies of signal processing and selecting mother wavelet, the paper makes the multi-scale transformation to the motor starting current, excavates the harmonic informations on non-stationary condition, realizes fault diagnosis of motor broken rotor bars effectively, The consistent diagnostic results prove the effectiveness of the method.

scholarly journals Literature Review on the Development of Public-Private-Partnership Leisure Sightseeing Agriculture

2021 ◽  
Vol 292 ◽  
pp. 03057
Author(s):  
Yuexia Wu ◽  
Xiuping Wang
Keyword(s):  
Content Analysis ◽  
Literature Review ◽  
Analysis Method ◽  
Research Topics ◽  
Private Partnership ◽  
Visualization Analysis ◽  
Content Analysis Method ◽  
Master's Thesis ◽  
Quantitative Visualization ◽  
Research Hotspots

Comprehensive use of content analysis method and quantitative visualization analysis method, taking journal papers and master's thesis in the field of PPP of CNKI database as samples, through content analysis of research topics, research nature, and analysis of authors, literature discipline distribution, research hotspots and other fields, To discuss the trend characteristics of research and development in the field of PPP leisure agriculture in my country.

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