Browsing by Author "Touati, Farid"
Now showing items 1-20 of 56
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A Fully Functional Secure Ubiquitous Healthcare Monitoring System
( Hamad bin Khalifa University Press (HBKU Press) , 2014 , Conference Paper)BACKGROUND & OBJECTIVES Recent advances in sensing, communication and actuation are leading to the next generation of Telemedicine when integrated with Wireless Body Area Networks (WBANs). They have a great potential in ... -
A Sinusoidal Encoder-to-Digital Converter Based on an Improved Tangent Method
( Institute of Electrical and Electronics Engineers Inc. , 2017 , Article)Sinusoidal encoders are used for the measurement of angular position and linear displacement. These provide electrical signals dependent on the sine and cosine of the position θ of their moving part relative to the stationary ... -
Calibration & Temperature Controlled Setup for Air Quality Sensors
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Indoor air pollution is a major issue affecting public health. Due to hot climate, humidity and lack of natural green spaces, life is mostly confined indoors in many countries of the MENA region. Vulnerable population, ... -
Capacitive type Humidity sensor based on PANI decorated Cu-ZnS porous micropshere
( Qatar University Press , 2020 , Poster)PANI coated Cu-ZnS porous microsphere structures have been synthesized by hydrothermal method and in-situ polymerization process. The synthesized composite is characterized by different techniques in order to study the ... -
Case study to analyze the impact of multi-course project-based learning approach on education for sustainable development
( MDPI , 2020 , Article)This work presents a multi-course project-based learning (MPL) approach implemented using two electrical engineering (EE) interdisciplinary undergraduate courses at Qatar University. Implementing an MPL approach helps in ... -
Colloidal distribution of the PCPDTBT and VOPcPhO in the organic amalgam thin films and their optical properties
( Springer Verlag , 2017 , Article)In this article, we investigated the optical properties and colloidal distribution of the PCPDTBT and VOPcPhO in the organic amalgam thin films prepared by spin-coating technique. A very even dispersion of donor and acceptor ... -
Cunws/rgo Based Transparent Conducting Electrodes As A Replacement Of Ito In Opto-electric Devices
( Hamad bin Khalifa University Press (HBKU Press) , 2014 , Conference Paper)Transparent electrodes that conduct electrical current and allow light to pass through are widely used as the essential component in various opto-electric devices such as light emitting diodes, solar cells, photodectectors ... -
Degradation analysis in mixed (MAPbI3 and MAPbBr3) perovskite solar cells under thermal stress
( Springer New York LLC , 2019 , Article)The current study provides an insight into the thermal stability of perovskite solar cells (PSCs) and the factors causing their degradation. To this end, a systematic stability study was carried out on n-i-p type perovskite ... -
Design and implementation of programmable multi-parametric 4-degrees of freedom seismic waves ground motion simulation IoT platform
( Institute of Electrical and Electronics Engineers Inc. , 2019 , Conference Paper)The early warning and disaster management agencies spend billions of dollars to counter and cater earthquakes but it has always been unique accident. In this work, a programmable four degrees of freedom electromechanical ... -
Determining the Outdoor Air Ventilation with Carbon Dioxide (CO2) as a Tracer Gas
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Insufficient ventilation can lead to occupant complaints of discomfort and reduced productivity as human and building generated pollutants build up. Some combinations of these elevated pollutants may have short or long-term ... -
Dielectric properties of Mn doped Bismuth Barium Titanate based ceramic thin films prepared by PLD technique
( Elsevier Ltd , 2017 , Article)In this article, the effect of Mn doping on the permittivity and dielectric loss in 0.67BiFeO3-0.33BaTiO3 (BF-BT) based film bulk acoustic resonator test structures has been investigated. BF-BT thin films were deposited ... -
Diversity-multiplexing tradeoff for log-normal fading channels
( Institute of Electrical and Electronics Engineers Inc. , 2016 , Article)Although there has been a growing interest on the study of diversity-multiplexing tradeoff (DMT), the existing works are mostly restricted to the outcomes reported for Rayleigh, Rician, and Nakagami fading channels. In ... -
EAMP-AIDC - Energy-aware mac protocol with adaptive individual duty cycle for EH-WSN
( Institute of Electrical and Electronics Engineers Inc. , 2017 , Conference Paper)Network lifetime is the main issue of wireless sensor networks and IoT solutions in real world application. Sensors cannot have an infinite lifetime without battery recharge or replacement. Energy harvesting, from environmental ... -
Effect of ambient temperature on the efficiency of the PCPDTBT: PC71BM BHJ solar cells
( Springer Verlag , 2017 , Article)In this research article, the influence of environment temperature on the performance of the organic bulk heterojunction organic solar cells has been investigated. We describe the effect of ambient temperature on the ... -
Effect of microwave sintering on the crystal domain and electrical properties of TiO2 nanoparticles
( Springer Netherlands , 2017 , Article)We report the effect of microwaves sintering on the crystal domain and electrical properties of TiO2 nanoparticles. Commercially available TiO2 nanoparticles of 25 nm size were coated on ITO (indium tin oxide) substrates, ... -
Electrical equivalent circuit (EEC) based impedance spectroscopy analysis of HTM free perovskite solar cells
( Elsevier , 2020 , Article)Monolithic perovskite solar cells (mPSCs) are the multi-layered organic-inorganic hybrid cells that have been focused due to the affordable cost, ease of fabrication, and noteworthy power conversion efficiency (PCE). In ... -
Enhancement of optical features and sensitivity of MEH-PPV/VOPcPhO photodetector using CdSe quantum dots
( Elsevier , 2016 , Article)In the present work, spectroscopic features and sensitivity of poly[2-methoxy-5-(2-ethylhexyloxy)-p-phenylene vinylene] (MEH-PPV) and vanadyl 2, 9, 16, 23-tetraphenoxy-29H, 31H-phthalocyanine (VOPcPhO) based photodetector ... -
Environmentally Powered Smart Sensor Nodes in a Mesh Network Topology for Air Quality Diagnostic
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Background & Objective: Air pollution is a major problem that has been recognised throughout the world for hundreds of years. In the middle ages, the burning of coal in cities released increasing amounts of smoke and sulphur ... -
Environmentally-Powered WSN for Urban-Scale Mapping and Assessment of Air Quality in Qatar
( Qatar University Press , 2020 , Poster)Environmental monitoring has gained significant importance in outdoor air quality measurement and assessment for fundamental survival as well as ambient assisted living. In real-time outdoor urban scale, instantaneous air ... -
An Experimental Performance Evaluation and Compatibility Study of the Bluetooth Low Energy Based Platform for ECG Monitoring in WBANs
( SAGE publications , 2015 , Article)A long term healthcare monitoring system requires battery operated devices with low-power technologies. Researchers tried to adapt various short-range technologies for Wireless Body Area Networks (WBANs) in ubiquitous ...
