نتایج جستجو برای: الگوریتم hht
تعداد نتایج: 23191 فیلتر نتایج به سال:
Time-frequency distribution has received a growing utilization for analysis and interpretation of nonlinear and nonstationary processes in a variety of fields. Among them, two methods, such as, the empirical mode decomposition EMD with Hilbert transform HT which is termed as the Hilbert-Huang Transform HHT and the Hilbert spectrum based on maximal overlap discrete wavelet package transform MODW...
For non-stationary signal in ultrasonic inspection, an effective denoising method based on Hilbert-Huang transform (HHT) is presented and a few key questions using the HHT method are discussed. The overall scheme of HHT includes two parts which are empirical mode decomposition (EMD) algorithm and a sum of intrinsic mode functions (IMF). Through the EMD process, individual IMF can be found. The ...
BACKGROUND The difficulty in establishing a timely correct diagnosis is a relevant matter of concern for several rare diseases. Many rare-disease-affected patients suffer from considerable diagnostic delay, mainly due to their poor knowledge among healthcare professionals, insufficient disease awareness among patients' families, and lack of promptly available diagnostic tools. Hereditary Haemor...
Hilbert Huang Transform (HHT) is an empirical timefrequency analysis method firstly proposed by N. E. Huang in 1998. This method is suitable for nonlinear and non-stationary signal processing and thus employed for bioelectrical signal processing and analysis in recent years. However, the large computation cost of HHT restricts its applications for real-time signal processing. This paper present...
Copyright: © 2013 Wong CW. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Abstract Hereditary hemorrhagic telangiectasia (HHT) is usually under recognized. It is a rare genetic disorder characterized by telan...
Celiac artery (CA) coverage during thoracic endovascular aortic repair has been demonstrated to be a feasible and effective strategy for selected cases. However, there is a potential risk of ischemic complications due to CA coverage in patients with certain types of hereditary hemorrhagic telangiectasia (HHT). Herein, we report a case of thoracoabdominal aortic rupture in a patient with HHT tha...
Empirical mode decomposition (EMD) is a signal processing method that produces data-driven time-frequency representation suited to characterize time-varying and nonlinear phenomena. In EMD, intrinsic functions (IMF) are sequentially estimated from the of interest represent different oscilation modes produce an orthogonal original information. Different algorithms have been proposed for EMD esti...
Editorial on Albiñana et al. Thromb Haemost 2012; 108: 41-53. Hereditary haemorrhagic telangiectasia (HHT) is a rare autosomal dominant vascular disorder, which occurs at a frequency of about one in 5,000 people (1–3). Vascular malformations in HHT patients range from regions of capillary dilation (telangiectases) in the nasal septum, oral mucosa, skin, or gastrointestinal tract, to large arter...
In this study, we confirmed that combining HHT with ACR can result in synergistic cytotoxicity to AML cells in vitro and in vivo. Combining HHT and ACR simultaneously inhibited PI3K/AKT and WNT/β-catenin signaling in AML cells. Significant increases in growth inhibition and apoptosis were induced by an AKT inhibitor when the WNT3A gene of THP-1 cells was silenced. HHT+ACR could synergistically ...
Bevacizumab has become a frequently used therapeutic option for bleeding complications in hereditary hemorrhagic telangiectasia (HHT). Renal limited thrombotic microangiopathy is a welldocumented complication of Bevacizumab therapy. We present an unusual case of Bevacizumab induced thrombotic microangiopathy complicated by glomerular predominant renal hemosiderosis in a patient with HHT-associa...
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