نتایج جستجو برای: bss

تعداد نتایج: 2715  

Journal: :Mathematical Problems in Engineering 2021

In order to resolve engineering problems that the performance of traditional blind source separation (BSS) methods deteriorates or even becomes invalid when unknown signals are interfered by impulse noise with a low signal-to-noise ratio (SNR), more effective and robust BSS method is proposed. Based on dual-parameter variable tailing (DPVT) transformation function, moving average filtering (MAF...

2017
Sören Kliem Anna Lohmann Thomas Mößle Elmar Brähler

BACKGROUND Suicidal ideation has been identified as one of the major predictors of attempted or actual suicide. Routinely screening individuals for endorsing suicidal thoughts could save lives and protect many from severe psychological consequences following the suicide of loved ones. The aim of this study was to validate the German version of the Beck Scale for Suicide Ideation (BSS) in a samp...

2018
Ruixue Chen Minghao Chen Ya Xiao Qiuer Liang Yunfei Cai Liguo Chen Meixia Fang

In traditional Chinese medicine (TCM), blood stasis syndrome (BSS) is mainly manifested by the increase of blood viscosity, platelet adhesion rate and aggregation, and the change of microcirculation, resulting in vascular endothelial injury. It is an important factor in the development of diabetes mellitus (DM). The aim of the present study was to screen out the potential candidate microRNAs (m...

2012
Leonardo Tomazeli Duarte Rafael A. Ando Romis Ribeiro Faissol Attux Yannick Deville Christian Jutten

In this work, we deal with the problem of nonlinear blind source separation (BSS). We propose a new method for BSS in overdetermined linear-quadratic (LQ) mixtures. By exploiting the assumption that the sources are sparse in a transformed domain, we define a framework for canceling the nonlinear part of the mixing process. After that, separation can be conducted by linear BSS algorithms. Experi...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یزد - دانشکده برق و کامپیوتر 1391

تخمین مقادیر tdoa (time differential of arrival) یکی از روش های پایه ای در مکان یابی منابع گفتار می باشد که به طور وسیع مورد بررسی قرار گرفته است. در دهه ی اخیر تحقیقات زیادی بر روی تخمین مقادیر tdoa با استفاده از فیلترهای بازترکیب مستخرج از جداسازی کور منابع، صورت گرفته است. در این پژوهش ضمن معرفی چندین روش از روش های مطرح شده در سال های اخیر، به بررسی و پیاده سازی روش sct (state coherence tra...

Journal: :J. Complexity 2018
Eike Neumann Arno Pauly

We investigate the topological aspects of some algebraic computation models, in particular the BSS-model. Our results can be seen as bounds on how different BSS-computability and computability in the sense of computable analysis can be. The framework for this is Weihrauch reducibility. As a consequence of our characterizations, we establish that the solvability complexity index is (mostly) inde...

2003
Fabian J. Theis Carlos G. Puntonet Elmar W. Lang

Overcomplete blind source separation (BSS) tries to recover more sources from less sensor signals. We present a new approach based on an estimated histogram of the sensor data; we search for the points fulfilling the overcomplete Geometric Convergence Condition, which has been shown to be a limit condition of overcomplete geometric BSS [1]. The paper concludes with an example and a comparison o...

Journal: :Oper. Res. Lett. 2012
Tal Raviv

Battery switching stations (BSS) provide a service that enables extending the traveling range of electric vehicles. Such stations may be the future equivalent of gas stations and they are currently being deployed in several countries. A BSS is a closed loop system that renews its inventory by recharging the batteries. We study the problem of scheduling the charging process in a BSS with the obj...

Journal: :Investigative ophthalmology & visual science 2002
Alvin K H Kwok Mamie Hui Chi Pui Pang Raphael C Y Chan Siu Wai Cheung Cynthia M S Yip Dennis S C Lam Augustine F B Cheng

PURPOSE To investigate the precipitation process of a mixture of vancomycin and ceftazidime by equilibrium dialysis and determine its subsequent effect on the level of free antibiotics for treatment of endophthalmitis. METHODS Concentrations of vancomycin and ceftazidime in an equilibrium dialysis chamber were measured during the equilibrium process by high-performance liquid chromatography. ...

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