Browsing Research of Qatar University Young Scientists Center by Publication Date
Now showing items 21-40 of 203
-
Optimum sintering method and temperature for cold compact Bismuth Telluride pellets for thermoelectric applications
( Elsevier , 2021 , Article)This work intends to investigate the optimum sintering method and temperature that can improve the efficiency of bismuth telluride cold compact pellets, for the thermoelectric applications. Different p-type and n-type ... -
Pedagogical models to implement effective stem research experience programs in high school students
( MDPI , 2021 , Article Review)High school research experience programs (HSREPs) provide opportunities for true science education and expose students to scientific investigations in laboratory settings. Various HSREPs models have been practiced to shape ... -
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 illumination and applied potential on the electrochemical impedance spectra in triple cation (FA/MA/Cs) 3D and 2D/3D perovskite solar cells
( Elsevier , 2021 , Article)Even though there has been numerous works performed based on electrochemical impedance spectroscopy (EIS) of perovskite solar cells (PSCs), however, many aspects of the obtained EI spectra are yet to be fully grasped. ... -
TiO2 encrusted MXene as a High-Performance anode material for Li-ion batteries
( Elsevier B.V. , 2022 , Article)TiO2 has the potential to be a viable anode material for high-power lithium-ion batteries (LIBs). However, the lower electronic conductivity of TiO2 limits its practical applications. Here, the synthesis of novel TiO2 ... -
Study on the corrosion behavior of polymeric nanocomposite coatings containing halloysite nanotubes loaded with multicomponent inhibitor
( Elsevier B.V. , 2022 , Article)In the present study, the halloysite nanotubes (HNTs) were loaded with a multicomponent inhibitor (LHNT) comprising mainly benzotriazole (BTA), sodium benzoate (SB), and lauric acid (LA) via the vacuum cycling method. The ... -
Publisher Correction: A lightweight neural network with multiscale feature enhancement for liver CT segmentation (Scientific Reports, (2022), 12, 1, (14153), 10.1038/s41598-022-16828-6)
( Nature Research , 2022 , Other)[No abstract available] -
The Role of Multidisciplinary Chemistry Informal Research Programs in Building Research Competencies and Attitudes
( American Chemical Society , 2022 , Article)This article is focused on the effectiveness of an innovative research-based learning model that employs chemistry-based research projects in developing high school students' research competency and attitudes. The ... -
Effective Pedagogical Approaches Used in High School Chemistry Education: A Systematic Review and Meta-Analysis
( American Chemical Society , 2022 , Article)This article systematically reviews the pedagogical approaches adopted in high school chemistry education with the aim of highlighting the most effective evidence-based instructional practices reported in the literature. ... -
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), ... -
Numerical modeling and performance optimization of carbon-based hole transport layer free perovskite solar cells
( Elsevier , 2022 , Article)Owing to low production cost and ease of processing, hole-transport layer (HTL) free carbon electrode-based perovskite solar cells (c-PSCs) have emerged as a potential photovoltaic (PV) technology. Despite this, c-PCSs ... -
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 ... -
Cultivating STEM Interest in High School Students through Computer-assisted COVID-19 Pandemic Awareness Course
( IIKII , 2022 , Article)Due to the COVID-19 pandemic, students were sidetracked by the shift in the educational process, primarily in the field of STEM (science, technology, engineering, mathematics) education. Teachers were also besieged to find ... -
Thermal and mechanical stability of microwave sintered cold compact bismuth telluride thermoelectric material
( Elsevier , 2022 , Article)Both p-type and n-type bismuth telluride (Bi2Te3)-based thermoelectric materials demonstrate high thermoelectric efficiency in the low-temperature thermoelectric modules, but their constrained thermal and mechanical stability ... -
Hierarchical BaTiO3/NiFe2O4 nanocomposite as an efficacious photoanode for photoelectrochemical water splitting
( Elsevier , 2022 , Article)Photocatalysis of water for the production of oxygen and hydrogen is one of the most important development in the drive for clean energy, and it has received a lot of attention because it is a green and easy step to generate ... -
Exploring Teachers’ Perceptions of the Barriers to Teaching STEM in High Schools in Qatar
( MDPI , 2022 , Article)Understanding teachers’ attitudes and perceptions of STEM teaching is a key pathway to enhance effective STEM teaching. Inarguably, teachers are the cornerstone of educational quality and play a central role in students’ ... -
Promising transparent and flexible thermoelectric modules based on p-type CuI thin films—A review
( Elsevier , 2022 , Article Review)The state-of-the-art thermoelectric technology owns a unique capability of direct, noise-free, and efficient conversion of waste heat into valuable electricity. The conventional thermoelectric generators are complex and ... -
Review on two-terminal and four-terminal crystalline-silicon/perovskite tandem solar cells; progress, challenges, and future perspectives
( Elsevier , 2022 , Article Review)Silicon (Si) solar cells are the dominant and well-developed solar technology holding more than 95% share of the photovoltaic market with efficiencies over 26%. Still, this value is far away from the Shockley–Queisser limit ... -
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. ... -
A lightweight neural network with multiscale feature enhancement for liver CT segmentation
( Nature Research , 2022 , Article)Segmentation of abdominal Computed Tomography (CT) scan is essential for analyzing, diagnosing, and treating visceral organ diseases (e.g., hepatocellular carcinoma). This paper proposes a novel neural network (Res-PAC-UNet) ...