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中国科学院深圳先进技术研究院专利：ECG去除工频干扰的方法及系统
中国科学院深圳先进技术研究院 专利 ECG 工频干扰 去除方法
2023/11/21
中国科学院深圳先进技术研究院专利：ECG去除工频干扰的方法及系统
对心电图房颤异常信号进行检测和分析，利用多层共轭对称Hadamard特征变换模型，构建房颤异常信号分类系统。方法：采用多层共轭对称Hadamard特征变换的房颤识别方法，检测房颤异常信号分类特征。采用基于误差梯度反向传播Levenberg-Marquardt神经网络模型训练测试数据集。构建房颤异常信号分类器，并建立临床诊断分类模型。
Cloprostenol and eCG influence oestrus synchronisation and uterine development in mice
follicle stimulating hormone equine chorionic gonadotropin
2015/5/25
The aim of this study was to investigate the efficacy of equine chorionic gonadotropin (eCG) and cloprostenol
(CLO) administration on oestrus synchronisation, uterine development as well as serum LH...
Cloprostenol and eCG influence oestrus synchronisation and uterine development in mice
follicle stimulating hormone equine chorionic gonadotropin cloprostenol oestrus synchronisation mice
2015/4/30
The aim of this study was to investigate the efficacy of equine chorionic gonadotropin (eCG) and cloprostenol (CLO) administration on oestrus synchronisation, uterine development as well as serum LH a...
Milk progesterone profiles, blood metabolites, metabolic hormones and pregnancy rates in Awassi ewes treated by gestagen + eCG at the early breeding season
dairy ewe cycle-induction/synchronization ovary
2015/4/1
The ovarian response to a standard chronogest + eCG treatment with plasma levels of insulin, insulin-like growth factor-I (IGF-I), thyroids, non-esterified fatty acids (NEFA), OH-butyrate (BHB...
Reduction of CPR artifacts in the ventricular fibrillation ECG by coherent line removal
CPR artifacts the ventricular fibrillation ECG coherent line removal
2010/2/25
The localized coherent line removal algorithm reduces CPR-artifacts in VF-ECG, but does not eliminate them. Our SNR-improvements are in the same range as offered by multichannel methods of Rheinberger...
Measurement of breathing frequency from ECG in the examination of autonomous nervous system activities: Suggested methods and their verification
ECG signal QRS complex breating frequency heart rate variability spectral analysis autonomous nervous system
2009/12/25
From a wide range of methods pertaining to breathing frequency measurement we opted for the less frequent method of breathing frequency diagnosis originating from the assessment of changes in ECG sign...
平滑滤波对ECG的R波幅值影响研究
平滑滤波 ECG R波 影响
2009/10/29
平滑滤波的目的是消除高频纹波干扰，ECG波形调理往往需要进行平滑滤波.平滑滤波会对高频尖峰波形产生削峰，ECG中的R波波形高尖，易受影响.讨论并实验了平滑滤波对不同采样率、心率和不同QRS间期时的R波削峰程度，进行了理论分析，给出了实验结果，为ECG的信号调理提供参考.
Robust algorithm for arrhythmia classification in ECG using extreme learning machine
Robust algorithm arrhythmia classification ECG extreme learning machine
2010/2/25
The experimental results of the entire MIT-BIH arrhythmia database demonstrate that the performances of the proposed algorithm are 98.00% in terms of average sensitivity, 97.95% in terms of average sp...
This paper introduces a new method for R wave's locations using the multiscale wavelet analysis, that is based on Mallat's and Hwang's approach for singularity detection via local maxima of the wavele...
Unrestrained Facile Measurement of Narrow-band ECG and Respiratory Variation in Infants with a Capacitive Sheet-type Sensor
capacitive sensing non-intrusive monitoring capacitive electrode ECG monitoring respiration
2009/8/24
We propose a new method for obtaining narrow-band electrocardiographic potential (ECG) and respiratory variation in infants through their underwear. This method is based on capacitive coupling involvi...
基于小波变换的ECG信号压缩及其FPGA实现
离散小波变换(DWT) FPGA 小波提升
2009/8/4
小波变换在ECG信号处理中的应用得到了很多研究人员的关注。本文研究了5层5/3提升小波变换及其反变换的FPGA实现，并将其应用于ECG信号的压缩，在均方误差可控的范围内获得了较大的压缩比，并利用设计的硬核实现了信号的重建。
自适应阈值小波滤波及其在ECG消噪中的应用
小波变换 自适应阈值 消噪
2009/7/3
采集的心电信号，各类噪声往往覆盖了其有用信号的全频段范围，通常的方法难以有效消噪。讨论了将非线性阈值函数h引入小波消噪中，通过训练信号来确定各尺度下的h函数参数，然后采用阈值自适应的小波滤波进行心电信号消噪的方法。通过和Donoho的小波阈值消噪法对实测心电信号消噪比较，说明了该方法在心电消噪方面的有效性，且在消噪后波形不失真方面具有更好的优越性。
Transient Silent Ischemia after PTCA Manifested with a Bizarre ECG
silent ischemia coronary spasm
2009/6/23
Silent myocardial ischemia (SMI) is defined as a transient alteration in myocardial perfusion in the absence of chest pain or the usual anginal equivalents. SMI is recognized as a common manifestation...