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High School Students’ Perceptions of the Role of Social Support in Cultivating Their Interests in and Aspirations to STEM Degrees and Careers—A Middle Eastern Case Study
( MDPI , 2023 , Article)This case study intends to comprehend students’ perceptions of social support in cultivating their interests and aspirations for science, mathematics, engineering, and technology (STEM) degrees and careers. Survey-based ... -
High Selenium Intake is Associated with Endothelial Dysfunction: Critical Role for Endoplasmic Reticulum Stress
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Selenium is associated with insulin resistance and may therefore affect endothelial function, increasing type II diabetes risk and associated cardiovascular-disease risk. However the underpinning molecular mechanisms ... -
High sensitivity H2S gas sensors using lead halide perovskite nanoparticles
( Elsevier , 2022 , Article)We report the development of a high sensitivity H2S gas sensor based on perovskite nanoparticles, which can be synthesized using relatively simple solution-growth methods. The gas sensor was fabricated from the metal halide ... -
High step-up single switch quadratic modified SEPIC converter for DC microgrid applications
( Institution of Engineering and Technology , 2020 , Article)A new non-isolated high-voltage gain single switch quadratic modified single-ended primary-inductor capacitor (SEPIC) DC-DC converter is proposed in this study. The proposed converter consists of a modified SEPIC converter ... -
High strength, ductility, and electrical conductivity of in-situ consolidated nanocrystalline Cu-1%Nb
( Elsevier Ltd , 2018 , Article)Nanocrystalline metals—with grain sizes less than 100 nm— have strengths exceeding those of coarse-grained and even alloyed metals [1], [2]. A bulk nanocrystalline Cu-1%Nb alloy was synthesized by an in-situ consolidation ... -
High temperature thermal stability of innovative nanostructured thin coatings for advanced tooling
( Trans Tech Publications Ltd , 2014 , Article)Tools for machining are made of hard steels and cemented carbide (WC-Co). For specialized applications, such as aluminium machining, diamond or polycrystalline cubic boron nitride are also used. The main problem with steel, ... -
High toughness resorbable brushite-gypsum fiber-reinforced cements
( Elsevier Ltd , 2021 , Article)The ideal bone substitute material should be mechanically strong, biocompatible with a resorption rate matching the rate of new bone formation. Brushite (dicalcium phosphate dihydrate) cement is a promising bone substitute ... -
High vaccine coverage is crucial for preventing the spread of infectious diseases during mass gathering
( Qatar University Press , 2020 , Poster)Background: Vaccines are the most cost-effective intervention in public health as they prevent the spread of highly contagious infectious diseases. Because of vaccine implementation and high coverage, Measles was eradicated ... -
High voltage pulse generator based on DC-to-DC boost converter with capacitor-diode voltage multipliers for bacterial decontamination
( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference Paper)High voltage pulse generators can be used effectively in water treatment applications, as applying a pulsed electric field on the infected sample guarantees killing of harmful germs and bacteria. In this paper, a new high ... -
A High-Availability Data Collection Scheme based on Multi-AUVs for Underwater Sensor Networks
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Article)In this paper, a high-availability data collection scheme based on multiple autonomous underwater vehicles (AUVs) (HAMA) is proposed to improve the performance of the sensor network and guarantee the high availability of ... -
High-efficiency c-Si based interdigitated point contact back heterojunction solar cells
( Springer New York LLC , 2017 , Article)We report on the modeling and performance optimization studies of point contact back heterojunction (BHJ) solar cells. BHJ solar cell technology is a combination of front heterojunction (a-Si:H/c-Si) solar cell technology ... -
High-Efficiency Solar Desalination Accompanying Electrocatalytic Conversions of Desalted Chloride and Captured Carbon Dioxide
( American Chemical Society , 2019 , Article)The sustainability of conventional water- and energy-associated systems is being examined in terms of water-energy nexus. This study presents a high-efficiency, off-grid solar desalination system for saline water (salinities ... -
High-frequency viscoelastic measurements of fluids based on microcantilever sensing: New modeling and experimental issues
( Elsevier , 2013 , Article)In general, microrheology is carried out using active or passive particle-tracking techniques. In the present paper, a novel technique based on the out-of-plane bending vibrations of a microcantilever beam immersed into a ... -
High-gain DC-DC converters for high-power PV applications: Performance assessment
( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)Conventional non-isolated DC-DC converters provide limited practical gains at high duty cycles due to their parasitic losses. Such trend is not suitable for renewables grid integration due to the high required gain, while ... -
High-Gain Non-isolated Single-Switch DC-DC Converters in Power Factor Correction Rectifiers: A Performance Assessment
( IEEE , 2022 , Conference Paper)Conventional single-stage Power Factor Correction (PFC) rectifiers struggle with extreme duty ratio operation for low-voltage applications, like Low-speed Electric Vehicles (LSEV). This worsens the performance of the ... -
High-intensity exercise training does not influence body weight but improves lipid oxidation in obese adults: A 6-week RCT
( BMJ Publishing Group , 2017 , Article)Objectives This study examined the effects of 6 weeks of high-intensity training (HIT) on lipid oxidation (LO) rates during incremental exercises in obese adults. Methods Twenty-four obese adults were randomised into a ... -
High-intensity interval training improves acute plasma volume responses to exercise that is age dependent
( American Physiological Society , 2018 , Article)Plasma volume (PV) is affected by several factors including age, physical training and, acutely, by exercise intensity. The purpose of this study was to investigate the effects of 6 weeks of high-intensity interval training ... -
High-performance adaptive Perturb and observe MPPT technique for photovoltaic-based microgrids
( IEEE , 2011 , Article)Solar photovoltaic (PV) energy has witnessed double-digit growth in the past decade. The penetration of PV systems as distributed generators in low-voltage grids has also seen significant attention. In addition, the need ... -
High-Performance BiCMOS Transimpedance Amplifiers for Fiber-Optic Receivers
( Sultan Qaboos University , 2017 , Article)High gain, wide bandwidth, low noise, and low-power transimpedance amplifiers based on new BiCMOS common- base topologies have been designed for fiber-optic receivers. In particular a design approach, hereafter called "A ...