The Experts below are selected from a list of 309 Experts worldwide ranked by ideXlab platform
L Reinhardt - One of the best experts on this subject based on the ideXlab platform.
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The signal-averaged ECG: Time–Domain Analysis
European Heart Journal, 1993Co-Authors: G Breithardt, T Wichter, T Fetsch, M Borggrefe, M Shenasa, Seifert T, L ReinhardtAbstract:During the past decade, the high-resolution electrocardiogram as a non-invasive technique for the detection of ventricular late potentials has developed from an experimental method into a routinely applied non-invasive method for risk stratification of patients after myocardial infarction. Meanwhile, several approaches have been developed for the detection of ventricular late potentials including Time–Domain Analysis, frequency–Domain Analysis and spectrotemporal mapping. Clinical applications are no longer limited to patients after myocardial infarction, but cover a wider spectrum of different cardiac diseases. This review focuses on some methodological aspects as well as on the results and current clinical applications of the Analysis of the signal-averaged ECG in the Time Domain.
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The signal-averaged ECG: Time-Domain Analysis.
European heart journal, 1993Co-Authors: G Breithardt, T Wichter, T Fetsch, T Seifert, M Borggrefe, M Shenasa, L ReinhardtAbstract:During the past decade, the high-resolution electrocardiogram as a non-invasive technique for the detection of ventricular late potentials has developed from an experimental method into a routinely applied non-invasive method for risk stratification of patients after myocardial infarction. Meanwhile, several approaches have been developed for the detection of ventricular late potentials including Time-Domain Analysis, frequency-Domain Analysis and spectrotemporal mapping. Clinical applications are no longer limited to patients after myocardial infarction, but cover a wider spectrum of different cardiac diseases. This review focuses on some methodological aspects as well as on the results and current clinical applications of the Analysis of the signal-averaged ECG in the Time Domain.
G Breithardt - One of the best experts on this subject based on the ideXlab platform.
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The signal-averaged ECG: Time–Domain Analysis
European Heart Journal, 1993Co-Authors: G Breithardt, T Wichter, T Fetsch, M Borggrefe, M Shenasa, Seifert T, L ReinhardtAbstract:During the past decade, the high-resolution electrocardiogram as a non-invasive technique for the detection of ventricular late potentials has developed from an experimental method into a routinely applied non-invasive method for risk stratification of patients after myocardial infarction. Meanwhile, several approaches have been developed for the detection of ventricular late potentials including Time–Domain Analysis, frequency–Domain Analysis and spectrotemporal mapping. Clinical applications are no longer limited to patients after myocardial infarction, but cover a wider spectrum of different cardiac diseases. This review focuses on some methodological aspects as well as on the results and current clinical applications of the Analysis of the signal-averaged ECG in the Time Domain.
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The signal-averaged ECG: Time-Domain Analysis.
European heart journal, 1993Co-Authors: G Breithardt, T Wichter, T Fetsch, T Seifert, M Borggrefe, M Shenasa, L ReinhardtAbstract:During the past decade, the high-resolution electrocardiogram as a non-invasive technique for the detection of ventricular late potentials has developed from an experimental method into a routinely applied non-invasive method for risk stratification of patients after myocardial infarction. Meanwhile, several approaches have been developed for the detection of ventricular late potentials including Time-Domain Analysis, frequency-Domain Analysis and spectrotemporal mapping. Clinical applications are no longer limited to patients after myocardial infarction, but cover a wider spectrum of different cardiac diseases. This review focuses on some methodological aspects as well as on the results and current clinical applications of the Analysis of the signal-averaged ECG in the Time Domain.
Thibaut Sylvestre - One of the best experts on this subject based on the ideXlab platform.
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Brillouin optical Time-Domain Analysis of fiber-optic parametric amplifiers
IEEE Photonics Technology Letters, 2007Co-Authors: Armand Vedadi, Miguel Gonzalez-herraez, Luc Thévenaz, D. Alasia, Eric Lantz, Hervé Maillotte, Thibaut SylvestreAbstract:We carried out distributed measurements of the longitudinal gain of fiber-optical parametric amplifiers using a novel sensing technique based on Brillouin optical Time-Domain Analysis. Using this technique, we successfully characterized different gain behaviors in the linear and the saturation regimes. In addition, we demonstrated the recently predicted gain reciprocity at opposite ends of the amplifier span.
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Brillouin Optical Time Domain Analysis of Fiber Optic Parametric Amplifiers
2006 European Conference on Optical Communications, 2006Co-Authors: Armand Vedadi, Miguel Gonzalez-herraez, Luc Thévenaz, D. Alasia, Eric Lantz, Hervé Maillotte, Thibaut SylvestreAbstract:We carried out, for the first Time to our knowledge, distributed measurements of the small-signal gain of fiber-based parametric amplifiers by using a novel technique based on Brillouin optical Time Domain Analysis.
Miguel Gonzalez-herraez - One of the best experts on this subject based on the ideXlab platform.
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Balanced detection in Brillouin optical Time Domain Analysis
23rd International Conference on Optical Fibre Sensors, 2014Co-Authors: Alejandro Dominguez-lopez, Sonia Martin-lopez, Alexia Lopez-gil, Miguel Gonzalez-herraezAbstract:We propose the use of balanced detection in Brillouin Optical Time Domain Analysis (BOTDA) sensors. Balanced detection can be effectively accomplished among the Stokes and anti-Stokes bands in the probe signal. This type of detection leads to a doubling of the trace amplitude and at least a √2 increase in signal to noise ratio over the conventional configuration. Moreover, it leads to a complete cancellation of the common-mode noise in the probe signal, including relative intensity noise in Raman-assisted configurations. We show all these benefits both theoretically and experimentally.
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Raman-assisted vector Brillouin optical Time Domain Analysis
Fifth European Workshop on Optical Fibre Sensors, 2013Co-Authors: Xabier Angulo-vinuesa, D. Bacquet, Sonia Martin-lopez, Pedro Corredera, Pascal Szriftgiser, Miguel Gonzalez-herraezAbstract:Raman-assistance (RA) has become a promising technique to enhance the sensing range of standard Brillouin Optical Time Domain Analysis (BOTDA) fiber sensors due to its ability to amplify in a distributed way all the interacting signals within the fiber. Unfortunately, Raman amplification introduces a great amount of Relative Intensity Noise (RIN) to the detected low-frequency probe wave. This RIN transfer problem has been widely identified as a major limitation in RABOTDA. In Vector Brillouin Optical Time Domain Analysis (VBOTDA) the detected signal is transferred to a highfrequency carrier where the Raman RIN transfer turns out to be much less harmful. In this work we demonstrate, for the first Time to our knowledge, Raman-assistance in a VBOTDA. Our results show significant reduction of the RIN transfer effect in RA-VBOTDA compared to standard RA-BOTDA, making this type of scheme particularly interesting for long range distributed sensing.
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Brillouin optical Time-Domain Analysis of fiber-optic parametric amplifiers
IEEE Photonics Technology Letters, 2007Co-Authors: Armand Vedadi, Miguel Gonzalez-herraez, Luc Thévenaz, D. Alasia, Eric Lantz, Hervé Maillotte, Thibaut SylvestreAbstract:We carried out distributed measurements of the longitudinal gain of fiber-optical parametric amplifiers using a novel sensing technique based on Brillouin optical Time-Domain Analysis. Using this technique, we successfully characterized different gain behaviors in the linear and the saturation regimes. In addition, we demonstrated the recently predicted gain reciprocity at opposite ends of the amplifier span.
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Brillouin Optical Time Domain Analysis of Fiber Optic Parametric Amplifiers
2006 European Conference on Optical Communications, 2006Co-Authors: Armand Vedadi, Miguel Gonzalez-herraez, Luc Thévenaz, D. Alasia, Eric Lantz, Hervé Maillotte, Thibaut SylvestreAbstract:We carried out, for the first Time to our knowledge, distributed measurements of the small-signal gain of fiber-based parametric amplifiers by using a novel technique based on Brillouin optical Time Domain Analysis.
T Wichter - One of the best experts on this subject based on the ideXlab platform.
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The signal-averaged ECG: Time–Domain Analysis
European Heart Journal, 1993Co-Authors: G Breithardt, T Wichter, T Fetsch, M Borggrefe, M Shenasa, Seifert T, L ReinhardtAbstract:During the past decade, the high-resolution electrocardiogram as a non-invasive technique for the detection of ventricular late potentials has developed from an experimental method into a routinely applied non-invasive method for risk stratification of patients after myocardial infarction. Meanwhile, several approaches have been developed for the detection of ventricular late potentials including Time–Domain Analysis, frequency–Domain Analysis and spectrotemporal mapping. Clinical applications are no longer limited to patients after myocardial infarction, but cover a wider spectrum of different cardiac diseases. This review focuses on some methodological aspects as well as on the results and current clinical applications of the Analysis of the signal-averaged ECG in the Time Domain.
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The signal-averaged ECG: Time-Domain Analysis.
European heart journal, 1993Co-Authors: G Breithardt, T Wichter, T Fetsch, T Seifert, M Borggrefe, M Shenasa, L ReinhardtAbstract:During the past decade, the high-resolution electrocardiogram as a non-invasive technique for the detection of ventricular late potentials has developed from an experimental method into a routinely applied non-invasive method for risk stratification of patients after myocardial infarction. Meanwhile, several approaches have been developed for the detection of ventricular late potentials including Time-Domain Analysis, frequency-Domain Analysis and spectrotemporal mapping. Clinical applications are no longer limited to patients after myocardial infarction, but cover a wider spectrum of different cardiac diseases. This review focuses on some methodological aspects as well as on the results and current clinical applications of the Analysis of the signal-averaged ECG in the Time Domain.
