نتایج جستجو برای: enhanced analytic signal

تعداد نتایج: 809065  

2014
Baolei XU Yunfa FU Gang SHI Xuxian YIN Zhidong WANG Hongyi LI

In this paper, we investigate the phase information for classification between clench speed and clench force motor imagery for BCI applications. The multivariate extensions of empirical mode decomposition (MEMD) are used to decompose EEG data into intrinsic mode functions (IMFs). Then, the phase information is got by transforming IMFs into analytic signal using Hiblert transforms. Six feature t...

2014
Miaozhong Sun Shihai Cui Yuanli Xu

At present, in the feature extraction of non-stationary vibration signals, many timefrequency analytic methods have emerged to meet the further need of non-stationary signal analysis such as Wavelet Transform (WT), Short Time Fourier Transform (STFT), WignerVille Distribution (WVD), Empirical Mode Decomposition (EMD), Ensemble Empirical Mode Decomposition (EEMD) and so on. However, these time-f...

Journal: :bulletin of emergency and trauma 0
mihai paduraru milton keynes university hospital nhs foundation trust - emergency surgery luca ponchietti milton keynes university hospital nhs foundation trust - emergency surgery isidro martinez casas complejo hospitalario de jaén - general and digestive surgery department peter svenningsen rigshospitalet, region hovedstaden - general surgery department mauro zago policlinico san pietro - general and minimally invasive surgery department.

objective: to evaluate the current scientific evidence for the applicability, safety and effectiveness of pathways of enhanced recovery after emergency surgery (eras). methods: we undertook a search using pubmed and cochrane databases for eras protocols in emergency cases. the search generated 65 titles; after eliminating the papers not meeting search criteria, we selected 4 cohort studies and ...

Journal: :Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 1991

Journal: :IEEE Transactions on Very Large Scale Integration (VLSI) Systems 2019

2015
Matthew Sibbald Anique B. H. de Bruin Eric Yu Jeroen J. G. van Merrienboer

Making a diagnosis involves ratifying or verifying a proposed answer. Formalizing this verification process with checklists, which highlight key variables involved in the diagnostic decision, is often advocated. However, the mechanisms by which a checklist might allow clinicians to improve their verification process have not been well studied. We hypothesize that using a checklist to verify dia...

2017
Paul M. Gammell

Conventional pulse-echo ultrasonic receivers rectify the received signal. Because the signature of the reflecting interfaces is modulated by the predominant ultrasonic frequency, interpretation of this signal in terms of the structure of the reflecting interfaces is difficult. Smoothing, as by an R-C filter, ameliorates this effect, giving a less confusing display at the expense of resolution. ...

2007
Yotaro Kubo Shigeki Okawa Akira Kurematsu Katsuhiko Shirai

Traditional feature extraction methods for automatic speech recognition (ASR), such as MFCC (Mel-frequency cepstral coefficients) and PLP (perceptual linear prediction) [6], are extracted from short-term spectral envelopes and can be used to realize promising ASR systems. On the other hand, features extracted by TRAPs-like classifiers [2] are based on long-term envelopes of narrow-band signals....

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