نتایج جستجو برای: noise cancelation

تعداد نتایج: 195269  

Journal: :Astronomy & Astrophysics 2019

Journal: :international journal of hospital research 2013
roghayeh khasha mohammad mehdi sepehri toktam khatibi

background and objectives: surgical cancelation is a significant source of time and resource waste, patientsafety risk, and stress for patients and their families. in this study, a risk management-based approach is developed to prioritize factors contributing to surgical cancellation. methods: factors leading to surgical cancellation were comprehensively classified based on literature review.a...

Mohammad Mehdi Sepehri Roghayeh Khasha Toktam Khatibi

Background and Objectives: Surgical cancelation is a significant source of time and resource waste, patient safety risk, and stress for patients and their families. In this study, a risk management-based approach is developed to prioritize factors contributing to surgical cancellation. Methods: Factors leading to surgical cancellation were comprehensively classified based on literature review...

2015
Caroline J. M. van Deursen Liliane Wecke Wouter M. van Everdingen Marcus Ståhlberg Michel H. G. Janssen Frieder Braunschweig Lennart Bergfeldt Harry J. G. M. Crijns Kevin Vernooy Frits W. Prinzen

Current optimization of atrioventricular (AV) and interventricular (VV) intervals in cardiac resynchronization therapy (CRT) is time consuming and subject to noise. We aimed to prove the principle that the best hemodynamic effect of CRT is achieved by cancelation of opposing electrical forces, detectable from the QRS morphology in the 3D vectorcardiogram (VCG). Different degrees of left (LV) an...

Journal: :J. Systems & Control Engineering 2015
Michail T. Pelegrinis Simon A. Pope Ilias Zazas Stephen Daley

A popular approach for Active Noise Control (ANC) problems has been the use of the adaptive Filtered-X Least Mean Squares (FXLMS) algorithm. A fundamental problem with feedforward design is that it requires both reference and error sensors. In order to reduce the size, cost and physical complexity of the control system a feedback controller can be utilized. In contrast with FXLMS a feedback con...

Journal: :Micromachines 2016
Koji Mizoue Manh Hao Phan Chia-Hung Dylan Tsai Makoto Kaneko Junsu Kang Wan Kyun Chung

This paper proposes a gravity-based system capable of generating high-resolution pressure for precise cell manipulation or evaluation in a microfluidic channel. While the pressure resolution of conventional pumps for microfluidic applications is usually about hundreds of pascals as the resolution of their feedback sensors, precise cell manipulation at the pascal level cannot be done. The propos...

2010
Renato Machado Bartolomeu F. Uchôa-Filho Tolga M. Duman

We propose a cooperative diversity scheme for a communication system consisting of NT cooperating nodes that receive ⌈log2(NT )⌉ feedback bits from the destination node on the channel state information. This information is used appropriately to obtain cooperative diversity and signal-to-noise ratio (SNR) gains. A simple linear detector and an interference cancelation detector are proposed. It i...

2011
Zsolt Kollár Péter Horváth

Filter Bank Multicarrier (FBMC) systems are a class of multicarrier modulation schemes for high speed wireless communication. These systems are known for their low adjacent channel leakage. In this paper we focus on the problem of channel equalization for FBMC systems. Most solutions in the literature use a per subcarrier equalization suffering from an error floor at high signal-to-noise ratios...

2010
Qing-Quan Jiang Xu Cai

In the presence of back reaction, we first produce the one-loop corrections for the event horizon and Hawking temperature of the Reissner-Nordström black hole. Then, based on the covariant anomaly cancelation method and the effective action technique, the modified expressions for the fluxes of gauge current and energy momentum tensor, due to the effect of back reaction, are obtained. The result...

2008
Hsun-Hsien Chang José M. F. Moura

Biomedical signals are observations of physiological activities of organisms, ranging from gene and protein sequences, to neural and cardiac rhythms, to tissue and organ images. Biomedical signal processing aims at extracting significant information from biomedical signals. With the aid of biomedical signal processing, biologists can discover new biology and physicians can monitor distinct illn...

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