Results 21 to 30 of about 2,435,332 (149)
Effect of duration of hypertension on heart rate variability
National Journal of Physiology, Pharmacy and Pharmacology, 2019 Background: Hypertension is the most prevalent noncommunicable disease. It is a multisystem disorder that affects many organs of the body including cardiovascular system, and it markedly increases both morbidity and mortality in the population ...
Jyothi S, Mangala Gowri S R
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Modeling and forecasting exchange rate volatility in time-frequency domain [PDF]
, 2015 This paper proposes an enhanced approach to modeling and forecasting volatility using high frequency data. Using a forecasting model based on Realized GARCH with multiple time-frequency decomposed realized volatility measures, we study the influence of ...
Barunik, Jozef +2 more
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Time- and frequency-domain polariton interference
, 2012 We present experimental observations of interference between an atomic spin coherence and an optical field in a {\Lambda}-type gradient echo memory. The interference is mediated by a strong classical field that couples a weak probe field to the atomic ...
B C Buchler +6 more
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Time and frequency domain in the business cycle structure
Agricultural Economics (AGRICECON), 2012 The presented paper deals with the identification of cyclical behaviour of business cycle from the time and frequency domain perspective. Herewith, methods for obtaining the growth business cycle are investigated - the first order difference, the ...
Jitka POMĚNKOVÁ, Roman MARŠÁLEK
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Harmonic Simulation Methods in Power Systems
Iteckne, 2020 The harmonic simulation on power systems can be performed using methodologies which are focused on time and frequency domain. The solution of power systems under harmonics require a complete and detailed solution of grid equations, and consequently ...
Carlos Barrera, Alex Valenzuela
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Photoionization in the time and frequency domain
, 2017 Ultrafast processes in matter, such as the electron emission following light absorption, can now be studied using ultrashort light pulses of attosecond duration ($10^{-18}$s) in the extreme ultraviolet spectral range.
Arnold, C. L. +13 more
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Adaptive SVD Denoising in Time Domain and Frequency Domain
Applied SciencesIn seismic data processing, noise not only affects velocity analysis and seismic migration, but also causes potential risks in post-stack processing because of the artifacts.
Meixuan Ren +5 more
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Normalized Study of Three-Parameter System in the Time Domain and Frequency Domain
Shock and Vibration, 2017 Three-parameter isolation system can be used to isolate microvibration for control moment gyroscopes. Normalized analytical model for three-parameter system in the time domain and frequency domain is proposed by using analytical method.
Xiao-Lei Jiao, Yang Zhao, Wen-Lai Ma
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Perbandingan Antara Domain Waktu dan Frekuensi untuk Pengenalan Sinyal EMG
Jurnal Rekayasa Elektrika, 2021 One way to recognize hand gestures is to use signal electromyography (EMG). The processed signal can use the time domain, frequency domain, or a mixture of the two domains.
Daniel Pamungkas +2 more
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Gauge techniques in time and frequency domain TLM
, 2009 Typical features of the Transmission Line Matrix (TLM) algorithm in connection with stub loading techniques and prone to be hidden in common frequency domain formulations are elucidated within the propagator approach to TLM.
Cap +13 more
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