Browsing by Author "Bhadra, Jolly"
Now showing items 1-20 of 38
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A STEM Model to Engage Students in Sustainable Science Education through Sports: A Case Study in Qatar
( Qatar University Press , 2021 , Poster)Sports is a powerful tool to make deeper connections, stimulations, and understanding of STEM (science, technology, engineering, and mathematics) education. Science in sports is a unique program established to present ... -
Adsorption study of Pb(II) in aqueous medium using polyaniline nanocomposites
( John Wiley and Sons Ltd , 2017 , Article)This research work presents a simple and effective way for preparation of polyaniline (PANI) nanofiber composites mixed with polyvinyl alcohol or polystyrene (PS) and their application for lead (Pb) removal from an aqueous ... -
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 ... -
Comparative Study on Gas-Sensing Properties of 2D (MoS2, WS2)/PANI Nanocomposites-Based Sensor
( MDPI , 2022 , Article)NH3 is a highly harmful gas; when inhaled at levels that are too high for comfort, it is very dangerous to human health. One of the challenging tasks in research is developing ammonia sensors that operate at room temperature. ... -
Covid-19 inspired a stem-based virtual learning model for middle schools—a case study of Qatar
( MDPI , 2021 , Article)An unprecedented turn in educational pedagogies due to the COVID-19 pandemic has significantly affected the students’ learning process worldwide. This article describes developing a STEM-based online course during the ... -
Detection of voltage pulse width effect on charge accumulation in PSCs using EFISHG measurement
( Elsevier , 2020 , Article)We report the effect of applied pulse width on charge accumulation in triple cation perovskite solar cells (PSCs) during the Electric Field Induced Second Harmonic Generation (EFISHG) measurements. The PSCs were prepared ... -
Development and Productive use of Virtual Pandemic Awareness Course during COVID-19 Outbreak to Stimulate STEM Curiosity in High School Students
( Qatar University Press , 2021 , Poster)In early 2020 when Covid-19 hit the globe, it caused significant destruction to the educational process. Schools were shut down, teachers and students struggled to adapt to the new method of learning. Meanwhile, Students ... -
A distinctive method of online interactive learning in stem education
( MDPI , 2021 , Article)A breakthrough that has occurred in recent years is the emergence of the COVID-19 pandemic. It has affected various sectors of society, including the educational sector. It has prevented students from performing group-oriented ... -
Effect of cold and hot compactions on corrosion behavior of p- and n-type bismuth telluride-based alloys developed through microwave sintering process
( Elsevier , 2023 , Article)Bismuth Telluride (BiTe) based p-type and n-type alloys exhibit superior thermoelectric (TE) performance covering energy requirements for specialized and home utilization. The main challenge nowadays is the sustainability ... -
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, ... -
Effect of the temperature on the passivity of the modified martensitic stainless steels
( Taylor and Francis Group , 2022 , Article)The limits and nature of the passive behavior exhibited by modified martensitic stainless steels (MMSS) is studied in brine solutions at different temperatures using electrochemical methods and the point defect model (PDM), ... -
Electrospun PVDF/ZnO Based Composite Fibers for Oil Absorption and Photocatalytic Degradation of Organic Dyes from Waste Water
( Springer , 2022 , Article)Clean drinking water has been a vital topic of research in modern world, this makes efficient water purification as the latest demand. The research and development in the field of filtration technology has revitalize ... -
Evaluation of the Pitting Corrosion of Modified Martensitic Stainless Steel in CO2 Environment Using Point Defect Model
( MDPI , 2022 , Article)Pitting corrosion is a significant concern for the broader application of stainless steel in modern industries in which metal and metal alloy are detached preferentially from susceptible parts on the surface, resulting in ... -
Fabrication of flexible conductive films by rubbing in technology for application in elastic thermo-electric cells
( Elsevier B.V. , 2019 , Article)This method solves the problem of fabrication of flexible elastic conductive thin film samples for thermoelectric applications. For this purpose, rubbing in technology at room temperature condition has been used which is ... -
Fabrication of flexible electrically conductive polymer based micro-patterns using plasma discharge
( Qatar University Press , 2020 , Poster)The application of polymer based micro-patterns in the field of flexible micro-electronics has become the focus as to replace rigid and planar silicon based integrated circuits with weak bendability. Polyethylene terephthalate ... -
Fabrication of polyaniline-graphene/polystyrene nanocomposites for flexible gas sensors
( Royal Society of Chemistry , 2019 , Article)This research work presents the fabrication of polyaniline (PANI) and graphene-polyaniline (graphene-PANI) nanocomposite-coated polystyrene (PS) nanofibre mats, as well as their application in flexible and highly sensitive ... -
Flexible thermo-electrochemical cells using Iodolyte HI-30 for conversion of low-grade heat to electrical energy
( Royal Society of Chemistry , 2016 , Article)In this research work, we investigated the flexible thermo-electro chemical cells (TECs) for the conversion of low-grade heat into electrical energy in the temperature range of 20–70 °C. The TECs were fabricated using 30 ... -
From sports to science: Designing sports products to experience science and engineering
( Qatar University Press , 2020 , Poster)Sports can have substantial impact on fostering cognitive and non-cognitive skills in youth leading to higher productivity. Its' potential to integrate within diverse academic subjects make it an ideal choice to attract ... -
Gas sensor based on PANI/Cu-ZnS porous micropshere film for CO2 detection
( Qatar University Press , 2020 , Poster)In this letter, we report the structural, morphological and CO2 gas sensing properties of the polyaniline (PANI) coated Cu-ZnS microspheres. PANI coated Cu-ZnS microspheres were prepared by hydrothermal and in-situ ... -
Growth of MAPbBr3 perovskite crystals and its interfacial properties with Al and Ag contacts for perovskite solar cells
( Elsevier B.V. , 2017 , Article)In this work, the MAPbBr3 perovskite crystals were grown and the interfacial properties of the poly-crystalline MAPbBr3 with Aluminum (Al) and Silver (Ag) contacts has been investigated. MAPbBr3 crystals are turned into ...
