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Articles 20311 - 20340 of 27528

Full-Text Articles in Engineering

Dynamic Characteristics Of An Isolated Self-Excited Synchronous Reluctance Generator Driven By A Wind Turbine, Mosaad Mohiedden Ali, Said Mahmoud Allam, Talaat Hamdan Abdel-Moneim Jan 2016

Dynamic Characteristics Of An Isolated Self-Excited Synchronous Reluctance Generator Driven By A Wind Turbine, Mosaad Mohiedden Ali, Said Mahmoud Allam, Talaat Hamdan Abdel-Moneim

Turkish Journal of Electrical Engineering and Computer Sciences

This paper studies the dynamic characteristics of an isolated three-phase self-excited synchronous reluctance generator (SESRG) driven by a variable-speed wind turbine under different operating conditions. Self-excitation is achieved via capacitors connected across the generator terminals. A detailed mathematical modeling of the proposed self-excited wind generation system is presented. The proposed analysis is based on the dynamic qd-axis model of the SESRG. Magnetic saturation is taken into account and is assumed to be confined to the direct axis and is accounted for as a variable direct-axis magnetizing reactance. Effect of wind-speed variation, excitation-capacitance variation, and loading-conditions variation on the generated output …


Optimal Digital Control Of A Three-Phase Four-Leg Voltage Source Inverter, Ayhan Özdemi̇r, Zeki̇ye Erdem Jan 2016

Optimal Digital Control Of A Three-Phase Four-Leg Voltage Source Inverter, Ayhan Özdemi̇r, Zeki̇ye Erdem

Turkish Journal of Electrical Engineering and Computer Sciences

No abstract provided.


Optimization Of Automatic Steering Control On A Vehiclewith A Steer-By-Wire System Using Particle Swarm Optimization, Fachrudin Hunaini, Imam Robandi, Nyoman Sutantra Jan 2016

Optimization Of Automatic Steering Control On A Vehiclewith A Steer-By-Wire System Using Particle Swarm Optimization, Fachrudin Hunaini, Imam Robandi, Nyoman Sutantra

Turkish Journal of Electrical Engineering and Computer Sciences

This paper presents a simulation of the automatic steering control system on a vehicle model using particle swarm optimization (PSO) to optimize the parameters of the control system. The control system involves fuzzy logic control (FLC) and proportional-integral-derivative (PID) control working in a cascade; the main control (FLC) is used to control lateral motion, and the secondary control (PID) is an enhancement to control the yaw motion in vehicle models representing 10 degrees of freedom of the vehicle dynamics system. Optimization by PSO is carried out simultaneously on both control systems. On FLC it is done by setting the width …


Design Of A Fuzzy Logic Controlled Thermoelectric Brain Hypothermia System, Abdullah Hakan Yavuz Jan 2016

Design Of A Fuzzy Logic Controlled Thermoelectric Brain Hypothermia System, Abdullah Hakan Yavuz

Turkish Journal of Electrical Engineering and Computer Sciences

Brain cooling in medicine is the most effective method in protecting brain cells during strokes, heart attacks, and brain traumas. This method, called brain hypothermia, is based on the principle that the brain is superficially cooled under controlled conditions in order to minimize cell death. In this study a helmet was designed to locally cool the brain and an effective controller was designed and tested using fuzzy logic in order to test the effectiveness of the helmet for brain hypothermia. For testing the cooling and heating performances of the helmet, currents between 0 and 60 A were applied to the …


Improving Fairness In Peer-To-Peer Networks By Separating The Role Of Seeders In Network Infrastructures, Alireza Naghizadeh Jan 2016

Improving Fairness In Peer-To-Peer Networks By Separating The Role Of Seeders In Network Infrastructures, Alireza Naghizadeh

Turkish Journal of Electrical Engineering and Computer Sciences

No abstract provided.


Energy-Efficient And Environmentally Friendly Power Dispatch By Trigeneration With Renewable Energy And Energy Storage, Faisal Pazheri, Mohd Fauzi Othman, Nazar H. Malik, Abdulrehman Ali Al-Arainy Jan 2016

Energy-Efficient And Environmentally Friendly Power Dispatch By Trigeneration With Renewable Energy And Energy Storage, Faisal Pazheri, Mohd Fauzi Othman, Nazar H. Malik, Abdulrehman Ali Al-Arainy

Turkish Journal of Electrical Engineering and Computer Sciences

The importance of energy-efficient power generation that effectively utilizes the available fossil fuels is increasing due to the gradual decline in fossil fuel reserves. Furthermore, concern about global warming has led to rapid growth in renewable energy and energy storage technologies. This trend is encouraging power utilities to effectively exploit the use of renewable energy resources (RESs) and energy storage facilities (ESFs) for power supply systems. In this regards, trigeneration in the presence of RESs and ESFs can play an important role for efficient and clean power dispatch. This paper discusses the optimum power dispatch using a hybrid power plant …


A New Technique To Improve The Operation Of Prosthetic Limbs During Muscle Fatigue, H. Albunashee, G. Rasool, K. Iqbal, G. White Jan 2016

A New Technique To Improve The Operation Of Prosthetic Limbs During Muscle Fatigue, H. Albunashee, G. Rasool, K. Iqbal, G. White

Journal of the Arkansas Academy of Science

Prosthetic limbs hold a promise to renew the quality of life for the amputee. Neural commands are decoded via a classifier to generate control signals for the prosthetic devices. In the literature, many challenges and limitations have been identified that affect the prosthesis operation. One such drawback is muscle fatigue which degrades the surface electromyogram (sEMG) signals, and consequently, the performance of the deployed classification algorithm declines from 90% to 50% of average accuracy. We used a new technique using the Linear Discrimination Analysis (LDA) algorithm and the muscle synergy-based task discrimination (MSD) algorithm to improve the classification accuracy. In …


Proceedings Of The 16th Annual Early Career Technical Conference (Front Matter), Ectc Coordinating Committee Jan 2016

Proceedings Of The 16th Annual Early Career Technical Conference (Front Matter), Ectc Coordinating Committee

Early Career Technical Journal (ECTJ)

Proceedings of the 16th Annual Early Career Technical Conference, November 5, 2016. School of Engineering, University of Alabama at Birmingham, Birmingham, Alabama; pp. i-xi


Section 1: Bio-Medical/Bioengineering, Ectc Coordinating Committee Jan 2016

Section 1: Bio-Medical/Bioengineering, Ectc Coordinating Committee

Early Career Technical Journal (ECTJ)

Proceedings of the 16th Annual Early Career Technical Conference, November 5, 2016. School of Engineering, University of Alabama at Birmingham, Birmingham, Alabama; pp. 1-30


Section 3: Materials, Ectc Coordinating Committee Jan 2016

Section 3: Materials, Ectc Coordinating Committee

Early Career Technical Journal (ECTJ)

Proceedings of the 16th Annual Early Career Technical Conference, November 5, 2016. School of Engineering, University of Alabama at Birmingham, Birmingham, Alabama; pp. 63-94


Section 2: Design & Manufacturing, Ectc Coordinating Committee Jan 2016

Section 2: Design & Manufacturing, Ectc Coordinating Committee

Early Career Technical Journal (ECTJ)

Proceedings of the 16th Annual Early Career Technical Conference, November 5, 2016. School of Engineering, University of Alabama at Birmingham, Birmingham, Alabama; pp. 31-62


Section 4: Materials, Ectc Coordinating Committee Jan 2016

Section 4: Materials, Ectc Coordinating Committee

Early Career Technical Journal (ECTJ)

Proceedings of the 16th Annual Early Career Technical Conference, November 5, 2016. School of Engineering, University of Alabama at Birmingham, Birmingham, Alabama; pp. 95-124


Section 5: Miscelleneous, Ectc Coordinating Committee Jan 2016

Section 5: Miscelleneous, Ectc Coordinating Committee

Early Career Technical Journal (ECTJ)

Proceedings of the 16th Annual Early Career Technical Conference, November 5, 2016. School of Engineering, University of Alabama at Birmingham, Birmingham, Alabama; pp. 125-152


Respiratory Airflow Characteristics In Obstructed Small Airways, Jongwon Kim, Ramana Pidaparti Jan 2016

Respiratory Airflow Characteristics In Obstructed Small Airways, Jongwon Kim, Ramana Pidaparti

Early Career Technical Journal (ECTJ)

Section 1: Bio-Medical/Bioengineering; pp. 3-8


Section 6: Thermal Sciences, Ectc Coordinating Committee Jan 2016

Section 6: Thermal Sciences, Ectc Coordinating Committee

Early Career Technical Journal (ECTJ)

Proceedings of the 16th Annual Early Career Technical Conference, November 5, 2016. School of Engineering, University of Alabama at Birmingham, Birmingham, Alabama; pp. 153-174


Dynamical Response Of Alveolar Sac Due To Different Breathing Condition: A Mechanical Model, Tarin Singhapakdi, Israr B M Ibrahim, Ramana Pidaparti Jan 2016

Dynamical Response Of Alveolar Sac Due To Different Breathing Condition: A Mechanical Model, Tarin Singhapakdi, Israr B M Ibrahim, Ramana Pidaparti

Early Career Technical Journal (ECTJ)

Section 1: Bio-Medical/Bioengineering; pp. 9-14


Proceedings Of The 16th Annual Early Career Technical Conference (Complete Issue), Ectc Coordinating Committee Jan 2016

Proceedings Of The 16th Annual Early Career Technical Conference (Complete Issue), Ectc Coordinating Committee

Early Career Technical Journal (ECTJ)

Proceedings of the 16th Annual Early Career Technical Conference, November 5, 2016. School of Engineering, University of Alabama at Birmingham, Birmingham, Alabama


A Subject-Variability Study Of Airflow Transport For Three Human Lung-Airway Configurations, Yu Feng, Clement Kleinstreuer Jan 2016

A Subject-Variability Study Of Airflow Transport For Three Human Lung-Airway Configurations, Yu Feng, Clement Kleinstreuer

Early Career Technical Journal (ECTJ)

Section 1: Bio-Medical/Bioengineering; pp. 22-29


Tractor Power Hop: Wheel Normal Reaction Analysis, Siyuan Hunter Zhang, Vladimir Vantsevich Jan 2016

Tractor Power Hop: Wheel Normal Reaction Analysis, Siyuan Hunter Zhang, Vladimir Vantsevich

Early Career Technical Journal (ECTJ)

Section 2: Design & Manufacturing; pp. 38-41


Design Of A Balance Sensing System For People With Physical Disabilities Using Velostat, John M. Hoyle, Alan W. Eberhardt Jan 2016

Design Of A Balance Sensing System For People With Physical Disabilities Using Velostat, John M. Hoyle, Alan W. Eberhardt

Early Career Technical Journal (ECTJ)

Section 2: Design & Manufacturing; pp. 50-55


Viscosity And Morphology Modification Of Length Sorted Single Walled Carbon Nanotubes In Pib Matrices, Hanxiao Huang, Bohoa Li, Daneesh Simien Jan 2016

Viscosity And Morphology Modification Of Length Sorted Single Walled Carbon Nanotubes In Pib Matrices, Hanxiao Huang, Bohoa Li, Daneesh Simien

Early Career Technical Journal (ECTJ)

Section 2: Design & Manufacturing; pp. 42-49


Design And Analysis Of A Long-Endurance Humanitarian Uav, Ali Darwish, Arie Nakhmani Jan 2016

Design And Analysis Of A Long-Endurance Humanitarian Uav, Ali Darwish, Arie Nakhmani

Early Career Technical Journal (ECTJ)

Section 2: Design & Manufacturing; pp. 56-61


On-Machine Cutting Tool Wear Monitoring Technique Based On Edge Diffraction Theory, Chabum Lee, Seongkyul Jeon Jan 2016

On-Machine Cutting Tool Wear Monitoring Technique Based On Edge Diffraction Theory, Chabum Lee, Seongkyul Jeon

Early Career Technical Journal (ECTJ)

Section 3: Materials; pp. 65-69


Determination Of Mechanical Properties For Type 1 Portland Cement Paste With Glass Microspheres As An Inert Filler, Zachary J. Wallace, Damian L. Stoddard, Matt Nelms, Wayne Hodo, A M. Rajendram Jan 2016

Determination Of Mechanical Properties For Type 1 Portland Cement Paste With Glass Microspheres As An Inert Filler, Zachary J. Wallace, Damian L. Stoddard, Matt Nelms, Wayne Hodo, A M. Rajendram

Early Career Technical Journal (ECTJ)

Section 3: Materials; pp. 70-74


Dynamic And Damping Properties Of Wood - Based Composite Using The Cantilever Beam Vibration Technique, Maharshi Dave, Tejas Pandya, Damian Stoddard Jan 2016

Dynamic And Damping Properties Of Wood - Based Composite Using The Cantilever Beam Vibration Technique, Maharshi Dave, Tejas Pandya, Damian Stoddard

Early Career Technical Journal (ECTJ)

Section 3: Materials; pp. 75-81


Novel Surface Roughness Measurement Technique Using Capacitance Effect, Soomin Choi, Chabum Lee Jan 2016

Novel Surface Roughness Measurement Technique Using Capacitance Effect, Soomin Choi, Chabum Lee

Early Career Technical Journal (ECTJ)

Section 3: Materials; pp. 82-84


Numerical Investigation Of Shock Wave Propoagtion In Biomineralized Fish Scale, Matthew Nelms, Wayne Hodo, A M. Rajendran Jan 2016

Numerical Investigation Of Shock Wave Propoagtion In Biomineralized Fish Scale, Matthew Nelms, Wayne Hodo, A M. Rajendran

Early Career Technical Journal (ECTJ)

Section 3: Materials; pp. 90-94


Hierarchical Grouping In Particle Swarm Optimization – Hgpso, Sanjay Sarma O V, Ramana M. Pidaparti, Ankita Joshi Jan 2016

Hierarchical Grouping In Particle Swarm Optimization – Hgpso, Sanjay Sarma O V, Ramana M. Pidaparti, Ankita Joshi

Early Career Technical Journal (ECTJ)

Section 4: Materials; pp. 97-103


Applications Of Lidar In Autonomous Vehicles, Allen J. Stewart, Jonathan Burden, Kevin Mcfall Jan 2016

Applications Of Lidar In Autonomous Vehicles, Allen J. Stewart, Jonathan Burden, Kevin Mcfall

Early Career Technical Journal (ECTJ)

Section 5: Miscelleneous; pp. 131-133


Minimum Storage Space Modeling By Maximum Independent Set For Antenna Systems, Serkan Guldal, Murat M. Tanik, Ibrahim Bilgin Jan 2016

Minimum Storage Space Modeling By Maximum Independent Set For Antenna Systems, Serkan Guldal, Murat M. Tanik, Ibrahim Bilgin

Early Career Technical Journal (ECTJ)

Section 5: Miscelleneous; pp. 134-139