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检索条件"机构=Biomedical Engineering Program/COPPE"
183 条 记 录,以下是91-100 订阅
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Semiautomatic contour detection of breast lesions in ultrasonic images with morphological operators and average radial derivative function
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Physics Procedia 2010年 第1期3卷 373-380页
作者: W. Gómez L. Leija W.C.A. Pereira A.F.C. Infantosi Department of Electrical Engineering CINVESTAV-IPN Av. IPN 2508 Mexico City 07000 Mexico Biomedical Engineering Program COPPE/UFRJ Av. Horacio Macedo 2030 Rio de Janeiro 21941-914 Brazil
This work presents a computerized lesion segmentation technique on breast ultrasound images. There were applied known techniques such as morphological filtering, Watershed transformation and average radial derivative ... 详细信息
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Principal components of frequency domain electromyograms for muscular fatigue analysis
Principal components of frequency domain electromyograms for...
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Annual International Conference of the IEEE engineering in Medicine and Biology Society (EMBC)
作者: Igor Ramathur Telles de Jesus Roger G. T. Mello Jurandir Nadal Biomedical Engineering Program COPPE Federal University of Rio de Janeiro Rio de Janeiro Brazil Sport and Physical Education Department Naval Postgraduate School Brasilia Brazil
The parameters commonly employed for muscular fatigue (MF) analysis, the mean frequency (F mean ) and median frequency (F median ) of surface EMG (SEMG) spectra, did not present consistent results for exercises perfor... 详细信息
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Evaluation of the influence of large temperature variations on the grey level content of B-mode images
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Physics Procedia 2010年 第1期3卷 415-419页
作者: André V. Alvarenga César A. Teixeira Maria Graça Ruano Wagner C.A. Pereira Laboratory of Ultrasound/National Institute of Metrology Standardization and Industrial Quality (Inmetro) Duque de Caxias Brazil Centre for Intelligent Systems/University of Algarve Faro Portugal Biomedical Engineering Program/COPPE Federal University of Rio de Janeiro Rio de Janeiro Brazil
In this work, the variation of the grey-level content of B-Mode images is assessed, when the medium is subjected to large temperature variations. The goal is to understand how the features obtained from the grey-level... 详细信息
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Ultrasonic calibration and certification of V1 and V2 type reference standard blocks for use in Non-Destructive Testing
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Journal of Physics: Conference Series 2011年 第1期279卷
作者: L E Maggi C E R Silva A V Alvarenga R P B Costa-Felix Laboratory of Ultrasound Directory of Scientific and Industrial Metrology (DIMCI) National Institute of Metrology Standardization and Industrial Quality (INMETRO) Av. Nossa Sra das Graças 50 (Prédio 1) Duque de Caxias RJ Brazil ZIP 25250-020 Biomedical Engineering Program COPPE/Federal University of Rio de Janeiro (UFRJ) Horácio Macedo Ave. n 2030 Center of Technology Block H - room/327 Cidade Universitária Rio de Janeiro RJ Brazil ZIP 21941-914
Ultrasonic Non-Destructive Testing (US-NDT) has many industrial applications, such as flaws detection, welding integrity evaluation and solid material thickness measurement. To evaluate the instrumentation conditions,...
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Localized fatigue effects on quiet standing control by fractional Brownian motion
Localized fatigue effects on quiet standing control by fract...
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Annual International Conference of the IEEE engineering in Medicine and Biology Society (EMBC)
作者: Roger G. T. Mello Liliam F. Oliveira Jurandir Nadal Sport and Physical Education Department Naval Postgraduate School Brasilia Brazil Biomechanics Laboratory School of Physical Education and Sports Federal University of Rio de Janeiro Brazil Biomedical Engineering Program COPPE Federal University of Rio de Janeiro Rio de Janeiro Brazil
In this work, the anterior-posterior displacement of the center of pressure was modeled as a fractional Brownian motion to analyze the effect of fatigue of plantar flexor muscles by isometric contraction. A sample of ... 详细信息
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Sensibility of hydrous ethanol adulteration detection using ultrasonic parameters validated in a metrological base
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Journal of Physics: Conference Series 2011年 第1期279卷
作者: Monique K-K Figueiredo Rodrigo P B Costa-Felix Luis E Maggi André V Alvarenga Gilberto A Romeiro Laboratory of Ultrasound (LABUS) Directory of Scientific and Industrial Metrology (DIMCI) National Institute of Metrology Standardization and Industrial Quality (Inmetro) Av. Nossa Sra das Graças 50 (Prédio 1) Duque de Caxias RJ Brazil ZIP 25250-020 Depto of Organic Chemistry Institute of Chemistry Fluminense Federal University (UFF) Campus of ValonguinhoOuteiro de São João Batista s/n Niteroi RJ Brazil ZIP 24020150 Biomedical Engineering Program COPPE/Federal University of Rio de Janeiro (UFRJ) Horácio Macedo Ave. n 2030 Center of Technology Block H - room/327 Cidade Universitária Rio de Janeiro RJ Brazil ZIP 21941-914
The aim of this study is to identify possible changes in fuels, in this case hydrous ethanol, through ultrasonic parameters such as attenuation and propagation speed. The system setup and method were implemented at In...
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Breast ultrasound phantom for image segmentation assessment
Breast ultrasound phantom for image segmentation assessment
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2009 IEEE International Ultrasonics Symposium, IUS 2009
作者: De Carvalho, Isabela Miller Basto, Rodrigo Leite Q. Infantosi, Antonio Fernando C. Von Krüger, Marco Antonio Pereira, Wagner Coelho De A. Biomedical Engineering Program - COPPE Federal University of Rio de Janeiro Rio de Janeiro Brazil
Ultrasound (US) phantoms are used to simulate the main acoustic properties of human soft tissues and are usually applied in guided biopsy training and equipment calibration. In this work it is presented an ultrasound ... 详细信息
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Characterization of cutaneous cell carcinomas by ultrasound biomicroscopy
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Physics Procedia 2010年 第1期3卷 761-765页
作者: L.I. Petrella J.C. Martins H.A. Valle P.R. Issa W.C.A. Pereira J.C. Machado Biomedical Engineering Program COPPE Federal University of Rio de Janeiro Av. Horacio Macedo 2030 Rio de Janeiro 21941-914 Brazil Dermatology Sector HUGG State Federal University of Rio de Janeiro Av. Mariz e Barros 775 Rio de Janeiro 20270-004 Brazil Pathologic Anatomy Sector HUGG State Federal University of Rio de Janeiro Av. Mariz e Barros 775 Rio de Janeiro 20270-004 Brazil
The potential of ultrasound biomicroscopy (UBM) images to evidence the alterations occurring in skin tissues affected by cutaneous carcinomas was studied. The histological patterns associated to these carcinomas can v... 详细信息
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Erratum to: A Numerical Model of the Respiratory Modulation of Pulmonary Shunt and PaO2 Oscillations for Acute Lung Injury
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Annals of biomedical engineering 2010年 第7期38卷 2473-2473页
作者: Beda, Alessandro Jandre, Frederico C. Giannella-Neto, Antonio Pulmonary Engineering Lab Biomedical Engineering Program COPPE – Federal University of Rio de Janeiro Rio de Janeiro Brazil Pulmonary Engineering Group Clinic of Anesthesiology and Intensive Care Therapy University Clinic Carl Gustav Carus Technical University Dresden Dresden Germany
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Preliminary study of pseudoarthrosis ultrasonic characterization
Preliminary study of pseudoarthrosis ultrasonic characteriza...
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2009 IEEE International Ultrasonics Symposium, IUS 2009
作者: Matusin, Daniel Patterson Pereira, Wagner Coelho De A. Machado, Christiano Bittencourt Ferreira, Manoel L. Schanaider, Alberto Biomedical Engineering Program - COPPE Federal University of Rio de Janeiro Rio de Janeiro Brazil Experimental Surgery Department - CCS Federal University of Rio de Janeiro Rio de Janeiro Brazil
Pseudoarthosis is a consequence of a failure in bone fracture healing process, resulting in a non-union and relative motion between fragments. The evolution of fracture consolidation and the diagnosis of pseudoarthros... 详细信息
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