2013 IEEE 1st International Conference on Condition Assessment Techniques in Electrical Systems (CATCON)最新文献_第4页

Classification of sleep apnea using cross wavelet transform 基于交叉小波变换的睡眠呼吸暂停分类

2013 IEEE 1st International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2013-12-01 DOI: 10.1109/CATCON.2013.6737512

B. Koley, D. Dey

{"title":"Classification of sleep apnea using cross wavelet transform","authors":"B. Koley, D. Dey","doi":"10.1109/CATCON.2013.6737512","DOIUrl":"https://doi.org/10.1109/CATCON.2013.6737512","url":null,"abstract":"In this paper, a novel approach for classifying sleep apneas using cross wavelet transform has been proposed. This is the first time that cross wavelet transform has ever been applied to sleep apnea type classification. The developed method takes the airflow and thoracic effort signals, as an in-put, which are then transformed to time-frequency and phase plane in order to extract the information of correlation between the two signals during different apnea condition. As the cross-wavelet returns large number of coefficients, which may be difficult to handle in some automated detection system, therefore dimension reduction was necessary. In the work, kernel principal component analysis (KPCA) based dimension reduction technique has been applied, and four Eigen values from each of the cross-wavelet amplitude and phase coefficients found to be effective for detection of apnea into three categories i.e., obstructive, central and mixed. The proposed system has been tested on the recordings obtained from 23 subjects. The average classification rate obtained using simple threshold technique was 85% ± 0.78%, and the values for each class were 85.2% (obstructive), 86.4% (central) and 83.6% (mixed). The results show that cross-wavelet is useful in order to distinguish the apneas, as it looks into the phase and amplitude coherence between the two signals.","PeriodicalId":290479,"journal":{"name":"2013 IEEE 1st International Conference on Condition Assessment Techniques in Electrical Systems (CATCON)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127963022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

A study on the influence of high electric field intensity treatment on crop life 强电场处理对作物寿命影响的研究

2013 IEEE 1st International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2013-12-01 DOI: 10.1109/CATCON.2013.6737477

S. Gowrishankar, V. Sree

引用次数: 1

A comparative study of impact of reactive power on ageing of synchronous machine in power system operation 电力系统运行中无功功率对同步电机老化影响的比较研究

2013 IEEE 1st International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2013-12-01 DOI: 10.1109/CATCON.2013.6737476

N. Jha, T. Ghose

引用次数: 2

Breakdown behaviour of sub-millimetre air gaps under alternating voltage 亚毫米气隙在交变电压下的击穿行为

2013 IEEE 1st International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2013-12-01 DOI: 10.1109/CATCON.2013.6737479

B. R. Shreedevi, T. Balachandra

引用次数: 2

Current shared by cables connected to down conductor and tower during a lightning strike 雷击时连接下导体和塔的电缆共享的电流

2013 IEEE 1st International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2013-12-01 DOI: 10.1109/CATCON.2013.6737510

G. R. Kunkolienker, U. Kumar

引用次数: 0

Location of faults in transformer winding using SFRA SFRA在变压器绕组故障定位中的应用

2013 IEEE 1st International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2013-12-01 DOI: 10.1109/CATCON.2013.6737497

K. Usha, Jineeth Joseph, S. Usa

引用次数: 8

Thermal analysis of underground power cables using two dimensional finite element method 利用二维有限元法对地下电力电缆进行热分析

2013 IEEE 1st International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2013-12-01 DOI: 10.1109/CATCON.2013.6737480

A. K. Naskar, N. Bhattacharya, S. Saha, S. N. Kundu

引用次数: 4

Condition assessment of oil-paper insulation in large power equipments using transfer function zero of debye model 利用德拜模型的传递函数零评价大型电力设备油纸绝缘状态

2013 IEEE 1st International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2013-12-01 DOI: 10.1109/CATCON.2013.6737488

A. Baral, S. Chakravorti

引用次数: 0

Effective field optimization of high voltage electrode surface by biogeography based algorithm 基于生物地理学算法的高压电极表面场优化研究

2013 IEEE 1st International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2013-12-01 DOI: 10.1109/CATCON.2013.6737486

P. Padghan, A. Mukherjee

{"title":"Effective field optimization of high voltage electrode surface by biogeography based algorithm","authors":"P. Padghan, A. Mukherjee","doi":"10.1109/CATCON.2013.6737486","DOIUrl":"https://doi.org/10.1109/CATCON.2013.6737486","url":null,"abstract":"In high voltage engineering, optimization of electric field distribution is directly related with the design of high voltage electrode surface. Various field optimization techniques are in use and this paper presents a new method based on the biogeographically isolated habitats for the optimization of high voltage electrode surface. This new method is known as Biogeography Based Optimization (BBO) and is used to obtain the shape of electrode in such a way that it can produce a nearly uniform field distribution along the surface of the electrode. The developed optimization technique is demonstrated with an axisymmetric single phase high voltage electrode. To compute the electric field, Charge Simulation Method (CSM) is used. For better simulation accuracy the sensitive indicators like deviation angle and assignment factor are kept well within the assigned values. These factors affect the simulation accuracy to a greater extent as compare to the statistical data. The new BBO technique helps to keep the maximum stress at a minimum possible value along the high voltage electrode surface.","PeriodicalId":290479,"journal":{"name":"2013 IEEE 1st International Conference on Condition Assessment Techniques in Electrical Systems (CATCON)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133853634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Localization of deformations in transformer windings using terminal capacitance measurements 用终端电容测量变压器绕组变形的定位

2013 IEEE 1st International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2013-12-01 DOI: 10.1109/CATCON.2013.6737520

P. Joshi, K. Badgujar, S. V. Kulkarni

引用次数: 1