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A quantitative classification of essential and Parkinson's tremor using wavelet transform and artificial neural network on sEMG and accelerometer signals

A quantitative classification of essential and Parkinson's t...

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IEEE International Conference on Networking, Sensing and Control

作者： Santosh Kumar Nanda Wen-Yen Lin Ming-Yih Lee Rou-Shayn Chen PhD Program in Biomedical Engineering Chang Gung University Taiwan Tao-Yuan Taiwan Graduate Institute of Medical Mechatronics Chang Gung University Taiwan Tao-Yuan Taiwan Department of Electrical Engineering Chang Gung University Taiwan Tao-Yuan Taiwan Department of Neurology Chang Gung Memorial Hospital Taiwan Tao-Yuan Taiwan

Correct discrimination of essential tremor from Parkinson's tremor is a major problem in clinical neurology as minor differences in the tremor patterns are hard to distinguish. Mathematical analysis of tremor signals recorded non-invasively has been widely accepted for tremor differentiation. However, classification of tremor signals collected from electromyograph or accelerometer, based on time and frequency domain techniques has limited accuracy because of overlapping frequency range and non-stationary nature of those signals. This paper describes a simple, non-invasive decision making logic method for discrimination of tremor. Wavelet transform based feature extraction technique in combination with feed forward type artificial neural network is proposed. Fractal dimensions of wavelet features of the decomposed detailed coefficients are used as the feature matrix. The neural network classified the tremor sEMG signals with 91.66% accuracy and 100% in case of accelerometer signals. Although, the classification accuracy of sEMG signal is comparable to that of accelerometer but the localized involuntary vibratory nature of tremor at the extremities of human body puts accelerometer as a better option in cases where tremor fails to excite the muscle. This proposed classification algorithm adds strength to the non-invasive signal detection methods at reduced cost and higher sensitivity.

关键词： Accelerometers Artificial neural networks Fractals Wavelet analysis Wavelet transforms Accuracy

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Author Correction: Ongoing declines for the world's amphibians in the face of emerging threats

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Nature 2024年第7993期625卷 E2页

作者： Jennifer A Luedtke Janice Chanson Kelsey Neam Louise Hobin Adriano O Maciel Alessandro Catenazzi Amaël Borzée Amir Hamidy Anchalee Aowphol Anderson Jean Ángel Sosa-Bartuano Ansel Fong G Anslem de Silva Antoine Fouquet Ariadne Angulo Artem A Kidov Arturo Muñoz Saravia Arvin C Diesmos Atsushi Tominaga Biraj Shrestha Brian Gratwicke Burhan Tjaturadi Carlos C Martínez Rivera Carlos R Vásquez Almazán Celsa Señaris S R Chandramouli Christine Strüssmann Claudia Fabiola Cortez Fernández Claudio Azat Conrad J Hoskin Craig Hilton-Taylor Damion L Whyte David J Gower Deanna H Olson Diego F Cisneros-Heredia Diego José Santana Elizah Nagombi Elnaz Najafi-Majd Evan S H Quah Federico Bolaños Feng Xie Francisco Brusquetti Francisco S Álvarez Franco Andreone Frank Glaw Franklin Enrique Castañeda Fred Kraus Gabriela Parra-Olea Gerardo Chaves Guido F Medina-Rangel Gustavo González-Durán H Mauricio Ortega-Andrade Iberê F Machado Indraneil Das Iuri Ribeiro Dias J Nicolas Urbina-Cardona Jelka Crnobrnja-Isailović Jian-Huan Yang Jiang Jianping Jigme Tshelthrim Wangyal Jodi J L Rowley John Measey Karthikeyan Vasudevan Kin Onn Chan Kotambylu Vasudeva Gururaja Kristiina Ovaska Lauren C Warr Luis Canseco-Márquez Luís Felipe Toledo Luis M Díaz M Monirul H Khan Madhava Meegaskumbura Manuel E Acevedo Marcelo Felgueiras Napoli Marcos A Ponce Marcos Vaira Margarita Lampo Mario H Yánez-Muñoz Mark D Scherz Mark-Oliver Rödel Masafumi Matsui Maxon Fildor Mirza D Kusrini Mohammad Firoz Ahmed Muhammad Rais N'Goran G Kouamé Nieves García Nono Legrand Gonwouo Patricia A Burrowes Paul Y Imbun Philipp Wagner Philippe J R Kok Rafael L Joglar Renoir J Auguste Reuber Albuquerque Brandão Roberto Ibáñez Rudolf von May S Blair Hedges S D Biju S R Ganesh Sally Wren Sandeep Das Sandra V Flechas Sara L Ashpole Silvia J Robleto-Hernández Simon P Loader Sixto J Incháustegui Sonali Garg Somphouthone Phimmachak Stephen J Richards Tahar Slimani Tamara Osborne-Naikatini Tatianne P F Abreu-Jardim Thais H Condez Thiago R De Carvalho Timothy P Cutajar Todd W Pierson Truong Re:wild Austin TX USA. jluedtke@***. IUCN SSC Amphibian Specialist Group Toronto Ontario Canada. jluedtke@***. Re:wild Austin TX USA. IUCN SSC Amphibian Specialist Group Toronto Ontario Canada. Museu Paraense Emílio Goeldi CZO/Herpetologia Belém Brazil. Florida International University Miami FL USA. Centro de Ornitologia y Biodiversidad (CORBIDI) Lima Peru. Laboratory of Animal Behaviour and Conservation College of Life Sciences Nanjing Forestry University Nanjing People's Republic of China. Laboratory of Herpetology Museum Zoologicum Bogoriense Research Center for Biosystematics and Evolution National Research and Innovation Agency (BRIN) Cibinong Indonesia. Department of Zoology Faculty of Science Kasetsart University Bangkok Thailand. Action Pour la Sauvegarde de l'Ecologie en Haïti (ACSEH) Les Cayes Haiti. Environmental Protection In the Caribbean (EPIC) Maho Sint Maarten. Museo de Vertebrados de la Universidad de Panamá Ciudad de Panama Panama. Centro Oriental de Ecosistemas y Biodiversidad (BIOECO) Museo de Historia Natural "Tomás Romay" Santiago de Cuba Cuba. IUCN SSC Amphibian Specialist Group Sri Lanka Gampola Sri Lanka. Laboratoire Évolution & Diversité Biologique UMR 5174 Université Toulouse III Paul Sabatier Toulouse France. Russian State Agrarian University-MTAA Moscow Russia. IUCN SSC Amphibian Specialist Group Bolivia La Paz Bolivia. Animal Nutrition Unit Department of Veterinary and Biosciences Ghent University Ghent Belgium. ASEAN Centre for Biodiversity University of the Philippines Los Baños Laguna Philippines. HerpWatch Pilipinas Manila Philippines. Faculty of Education University of the Ryukyus Okinawa Japan. Graduate School of Engineering and Science University of the Ryukyus Okinawa Japan. SAVE THE FROGS! Laguna Beach CA USA. The University of Texas at Arlington Arlington TX USA. Smithsonian Conservation Biology Institute Front Royal VA USA. Center for Environmental Studies Sanata Dharma University (CESSDU) Yogya

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Corrigendum to “Kinetic analysis for thermal cracking of HDPE: A new isoconversional approach” Polymer Degradation and Stability 2016;129: 306–318

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Polymer Degradation and Stability 2016年 133卷 349-349页

作者： Sahar Khedri Siamak Elyasi Biotechnology PhD Program Faculty of Science and Environmental Studies Lakehead University 955 Oliver Rd Thunder Bay Ontario P7B 5E1 Canada Chemical Engineering Department Lakehead University 955 Oliver Rd Thunder Bay Ontario P7B 5E1 Canada

Converting waste plastic into marketable hydrocarbons is a promising way to protect the environment and earn financial gain. While several kinetic studies have examined the cracking of waste plastic, they are often oversimplified or inappropriate for designing an industrial reactor. This work proves the necessity of using isoconversional methods by using Differential Scanning Calorimetry (DSC). DSC verified that cracking of waste plastic involves the production of several intermediates, indicating that the kinetics is more complex and requires further studies. Several isoconversional methods such as Friedman, Ozawa, Flynn-Wall-Ozawa (FWO), Kissinger-Akahira-Sunose (KAS) and model-free were applied to estimate the apparent activation energy and frequency factor of thermal cracking of high-density polyethylene (HDPE) using non-isothermal and isothermal Thermogravimetric Analysis (TGA). The determined kinetic parameters from each method were evaluated against the experimental data. In order to overcome the failures and shortages engaged with the employed methods, a new isothermal isoconversional model was proposed and good matching results were observed.

关键词： Thermal cracking Kinetic parameters HDPE Isothermal TGAs Non-isothermal TGAs Isoconversional methods

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Economic comparison of deloaded-wind and wind-battery systems

Economic comparison of deloaded-wind and wind-battery system...

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2014 6th Annual IEEE Green Technologies Conference, GREENTECH 2014

作者： Singarao, Venkatesh Yadav Nimmagadda, Sandeep Rao, Vittal Multi-Disciplinary Wind Science and Engineering PhD Program Texas Tech University Lubbock United States Electrical and Computer Engineering Texas Tech University Lubbock United States Department of Electrical and Computer Engineering Texas Tech University Lubbock United States

ISBN: (纸本)9781479939336

With the increasing grid penetration levels of wind power, there is a large need for the energy reserves for grid support during under-frequency conditions. Such energy reserves are created by operating the wind farm at non-optimum/deloaded operating points, as well as through storage of excess energy in Batteries. This paper provides technical and economic analysis of the above strategies and thus provides a case comparison of deloaded wind farm to that of wind-Battery system. A simplified Excel-based Proforma financial model has been developed to perform sensitivity analysis, as well as to obtain the impact of these strategies on the cost of energy. © 2014 IEEE.

关键词： Electric batteries

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Optimal linear control driven for piezoelectric non-linear energy harvesting on non-ideal excitation sourced

Optimal linear control driven for piezoelectric non-linear e...

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2014 International Conference on Mechatronics and Intelligent Materials, MIM 2014

作者： Da Costa Ferreira, Douglas Chavarette, Fábio Roberto Peruzzi, Nelson José UNESP - Univ. Estadual Paulista Mechanical Engineering PhD Program Ilha Solteira SP Brazil UNESP - Univ. Estadual Paulista Mathematics Department Ilha Solteira SP Brazil

ISBN: (纸本)9783038351412

Non-linear energy harvesting system was project to enhance interaction to ambient vibration that is wide band and low power which difficult the design for resonant solution. To improve efficiency of a non-linear design it was project a control system based in optimal linear control (OLC). Applying numerical evaluations it was possible to analyze the kinetic energy from the system as also the resulting output voltage. As main result there was a considerable increase of output voltage due controlled system in comparison to open loop for the same excitation. © (2013) Trans Tech Publications, Switzerland.

关键词： Energy harvesting

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Corrigendum to “Elevated temperature nanoindentation characterization of poly( para -phenylene vinylene) conjugated polymer films” [Polym. Test. 41 (2015) 17–25]

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Polymer Testing 2015年 42卷 234-234页

作者： Nimitt G. Patel Arvind Sreeram Ramaswamy I. Venkatanarayanan Sitaraman Krishnan Philip A. Yuya Department of Mechanical and Aeronautical Engineering Clarkson University Potsdam NY 13699 USA Materials Science and Engineering PhD Program Clarkson University Potsdam NY 13699 USA Department of Chemical and Biomolecular Engineering Clarkson University Potsdam NY 13699 USA

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Estimation challenges of lateral pressures in retaining structures using granular recycled tire aggregates as backfill

Estimation challenges of lateral pressures in retaining stru...

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2014 Congress on Geo-Characterization and Modeling for Sustainability, Geo-Congress 2014

作者： Garcia-Theran, Mauricio Pando, Miguel A. Celis, Hebenly Abdoun, Tarek Infrastructure and Environmental Systems PhD Program University of North Carolina at Charlotte 9201 University City Blvd Charlotte NC 28223 United States School of Civil Engineering Universidad Industrial de Santander Bucaramanga Colombia Department of Civil and Environmental Engineering Rensselaer Polytechnic Institute 110 Eighth Street Troy NY United States

ISBN: (纸本)9780784413272

The civil engineering community is a leader in national and international efforts toward sustainability, recycling, and reuse of materials. For example, asphalt is the most recycled material on earth, which is approximately 13 times the newsprint recycling and 27 times the glass bottles recycling. Recycled materials that have been used as borrow materials for embankment construction and retaining wall backfills include recycled asphalt, recycled concrete, tire-derived aggregates (TDA), blast furnace slag, steel slag, coal bottom ash/ boiler slag, flue gas desulfurization scrubber, cullet glass, and roofing shingles. Some of these recycled materials offer potential environmental, technical, and economical benefits for retaining-wall applications. For example, when compared with natural soils, many may offer the advantage of reduced lateral earth pressures and foundation settlement due to smaller unit weight and potentially higher drainage capacity. However, implicit in some of these options is the applicability of conventional soil mechanical principles in the design and technical assessment. In this paper we present experimental data from laboratory and model tests (centrifuge and model retaining walls) that highlight the challenges involved when trying to predict lateral pressures induced by a recycled wall backfill composed of tire derived aggregate. A key difference of this type of granular material is related to the nature of their particles, which are deformable and can exhibit viscous behavior. The experimental results are compared with classical lateral earth theories for active, passive, and at-rest conditions. The manuscript also includes an assessment of the time dependency of the at-rest pressures induced by TDA backfill. © 2014 American Society of Civil Engineers.

关键词： Glass

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A cost effective and highly sensitive glucose biosensor based on a 3D silicon nano wire array electrode

A cost effective and highly sensitive glucose biosensor base...

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Design, Test, Integration and Packaging of MEMS/MOEMS

作者： Wen-Chao Feng Che-Wei Hsu Hsi-Chien Liu Gou-Jen Wang Department of Mechanical Engineering National Chung-Hsing University Taichung Taiwan PhD Program in Tissue Engineering and Regenerative Medicine National Chung-Hsing University Taichung Taiwan

In this study, a novel glucose biosensor based on a 3D silicon nanowire array (SNA) electrode was proposed. Metal-assisted etching (MAE) method using an AgNO 3 and HF mixing solution as the etchant is employed for fast etching of a silicon wafer to form the SNA electrode. A thin gold shell is then coated onto each silicon nanowire by sputtering. Potassium ferricyanide, glucose oxidase, and a Nafion thin film were then sequentially coated onto the fabricated 3D SNA for glucose detection. The effective sensing area of the fabricated 3D SNA electrode was measured to be 11.35 folds that of the corresponding plane electrode by steady-state voltammetry. Actual glucose detections illustrated that the SNA based devices could function at a sensitivity of 1,034 μA mM -1 cm -2 with a linear detection range from 55.1 μM-11.0 mM and detection limit of 11 μM. A fast response time of 2 s was also demonstrated. The proposed 3D SNA based glucose biosensing scheme possesses advantages of low cost, high sensitivity, and fast response.

关键词： Sugar Electrodes Biosensors Gold Silicon Three-dimensional displays

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Corrigendum to "The Overexpression of NALP3 Inflammasome in Knee Osteoarthritis Is Associated with Synovial Membrane Prolidase and NADPH Oxidase 2"

Oxidative medicine and cellular longevity

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Oxidative medicine and cellular longevity 2017年第1期2017卷 7847602页

作者： Denise Clavijo-Cornejo Karina Martínez-Flores Karina Silva-Luna Gabriela Angélica Martínez-Nava Javier Fernández-Torres Yessica Zamudio-Cuevas Mónica Guadalupe Santamaría-Olmedo Julio Granados-Montiel Carlos Pineda Alberto López-Reyes Synovioanalysis Molecular Laboratory Instituto Nacional de Rehabilitación "Luis Guillermo Ibarra Ibarra" Secretaria de Salud Calzada Mexico-Xochimilco No. 289 Col. Arenal de Guadalupe 14389 Tlalpan Mexico City Mexico. Musculoskeletal and Articular Ultrasound Diploma Course Instituto Nacional de Rehabilitación "Luis Guillermo Ibarra Ibarra" Secretaria de Salud Calzada Mexico-Xochimilco No. 289 Col. Arenal de Guadalupe 14389 Tlalpan Mexico City Mexico. Synovioanalysis Molecular Laboratory Instituto Nacional de Rehabilitación "Luis Guillermo Ibarra Ibarra" Secretaria de Salud Calzada Mexico-Xochimilco No. 289 Col. Arenal de Guadalupe 14389 Tlalpan Mexico City Mexico Biological and Health Sciences PhD Program Universidad Autónoma Metropolitana Iztapalapa Avenida San Rafael Atlixco 186 Col. Vicentina 09340 Iztapalapa Mexico City Mexico. Tissue Engineering Cell Therapy and Regenerative Medicine Research Unit Instituto Nacional de Rehabilitación "Luis Guillermo Ibarra Ibarra" Secretaria de Salud Calzada Mexico-Xochimilco No. 289 Col. Arenal de Guadalupe 14389 Tlalpan Mexico City Mexico. Instituto Nacional de Rehabilitación "Luis Guillermo Ibarra Ibarra" Secretaria de Salud Calzada Mexico-Xochimilco 289 Col. Arenal de Guadalupe 14389 Tlalpan Mexico City Mexico.

[This corrects the article DOI: 10.1155/2016/1472567.].

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engineering practice: Teaching ill-structured problem solving in an internship-like course

Engineering practice: Teaching ill-structured problem solvin...

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2014 4th IEEE Global engineering Education Conference: engineering Education Towards Openness and Sustainability, IEEE EDUCON 2014

作者： Božić, Marija Čizmić, Svetlana Pavlović, Dragana Šumarac Escalas Tramullas, M. Teresa Telekom Srbija Belgrade Serbia Interuniversity PhD Program in Environmental Education Autonomous University of Barcelona Barcelona Spain Department of Psychology Faculty of Philosophy University of Belgrade Belgrade Serbia Department of Telecommunications School of Electrical Engineering University of Belgrade Belgrade Serbia Depart. of Didactics of Math. and Experimental Sciences Autonomous University of Barcelona Barcelona Spain

ISBN: (纸本)9781479931910

engineering graduates who enter the work environment after finishing their studies are faced with completely different setting compared to the safe academy environment that they are used to. Main differences at the workplace include dealing with uncertainty on a daily basis, solving open-ended and/or ill-structured problems and having to manage teamwork and communication on different educational and professional levels. Students should be faced with these aspects of engineering practice during their studies in order to prepare for work. As conventional engineering curricula often do not provide opportunities for such a practice, we designed the internship-like course with general objective to provide this opportunity for final year students and to define teaching strategies that can support students in the transition from the academy to the workplace. In this paper we describe main issues and challenges of the learning experiences that we found during our action research over four 10 week courses, from 2010/2011 to 2012/2013. © 2014 IEEE.

关键词： Students

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