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1973 articles for “OPAC2.0” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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Sol-Gel Auto-Combustion Synthesis and LPG Sensing Performance of Mg(x) Fe(x-1)2O4 (X=0.1 to 0.9) Nanoparticles
Abstract: Spinal ferrites are having important electronic materials because of their electrical and magnetic properties. MgFe2O4 gas sensors have important parameters such as phase formation, crystallite size, particle size, grain size, surface area etc. The present work provides comprehensive study of the mesoporous Mg(x)Fe(x-1)2O4 nanoparticles which were synthesized via sol-gel auto-combustion method. The main objective of the current research is to study the influence by increasing the concentration of ferrite with …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 19, Issue 1, 2017 · pp. 48–58 Read article
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Experimental Testing and Ply Wise Strength 0°-45°-0° Investigation of Multi-orientation Carbon Fiber Specimen by Using FEA and UTM
Abstract: Synthetic composites have higher strength to weight ratio and are extensively used in industrialapplications. Carbon fibers have extensively high tensile strength. Most of the composites haveorthotropic properties and their strength varies as per orientation. Laminar having differentply orientations have different properties and strengths. Hence, to enhance strength of carbonfiber specimen reducing layer wise damage becomes up most important. It is unimaginable toexpect to examine the layer insightful harm of each …
Published in Journal of Nuclear Engineering & Technology · Vol. 10, Issue 3, 2020 · pp. 29–37 Read article
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Substitution of La3+ in Cu0.5Co0.5 LaxFe2-x O4 (x=0.02, 0.06) spinel ferrites improves the structural and dielectric Properties
Abstract: Nanosized Spinel ferrites with composition Cu0.5Co0.5 LaxFe2-x O4 (x=0.2, 0.6) synthesized by Sol-Gel auto Combustion method. The prepared sample was calcinated at 8000c for 4 hours. The substitution of La3+ effects the structural parameters, which is characterized by X-ray diffraction (XRD). The X-rd analysis shows that the crystallite size is 34.609 nm for 0.02 and 38.994 nm for 0.06 was calculated by using Debye-Scherrer’s formula. dislocation density shows at value …
Published in Journal of Materials & Metallurgical Engineering · Vol. 15, Issue 3, 2025 · pp. 45–48 Read article
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Assessment of Knowledge, Attitudes, and Practices on Usage of Plastic Goods among Undergraduates in Kathmandu Valley
Abstract: The purpose of this study is to examine the level of Knowledge, Attitude, and Practice (KAP) regarding the use of plastic items among undergraduates in Kathmandu Valley. A standardized questionnaire was used to conduct a survey among 400 undergraduate students. Knowledge, attitude, and practice scores ranged from 1 to 8, 1 to 7, and 1 to 17, respectively. Data analysis was carried out using descriptive statistics, correlation, t-tests, and ANOVA. …
Published in Research & Reviews : Journal of Statistics · Vol. 11, Issue 2, 2022 · pp. 1–7 Read article
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A IoT-Enabled Predictive Intelligence for Real-Time Failure and Damage Evolution Monitoring of Polymer Composites
Abstract: Damage assessment of carbon-fibre-reinforced polymer composites is still challenging since the damage occurs as a combination of matrix cracking, interfacial debonding, delamination and fibre fracture. The present work proposes a framework for predictive-intelligence based on IoT for multiaxial fatigue and compression-after-impact (CAI) CFRP experiments, employing publicly available acoustic-emission (AE) datasets. A causal CNN–GRU attention model is developed by integrating time-domain, spectral, wavelet, loading-history and trend features to estimate the damage …
Published in Journal of Polymer & Composites · Vol. 14, Issue 5, 2026 Read article
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Implementation of Sense Amplifier-based D Flip-Flop using 0.25 µm and 0.18 µm Technology
Abstract: The traditional flip-flops and latches suffer from the large delays and the race conditions. This paper describes a new approach to the D flip-flop design using the sense amplifier. The previous efforts in the same direction made at the 0.25 µm technology exhibit improvements in clock-to-output delay and power dissipation with respect to recently proposed high-speed flip-flops. The paper discusses the flip-flop at 0.18 µm technology. The output latch of …
Published in Journal of Electronic Design Technology · Vol. 4, Issue 3, 2013 · pp. 10–13 Read article
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The 0^0 Thing Behind Everything
Abstract: Physics is the science of the physique of the universe. The physique of the universe is space. Space is the bottom-most of the universe which cannot be further undermined. Space cannot be seen. Not heard. Not smelt. Not tasted. Not touched or felt. Not known. The moment it is seen, heard, smelt, tasted, felt, known, the question pops up: who is the seeing, hearing, smelling, tasting, feeling, knowing? Consciousness/cognizance is …
Published in Research & Reviews : Journal of Physics · Vol. 12, Issue 3, 2023 Read article
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Caries-Preventive Effects of Self-Applied Subacidic 0.5% NaF-HF Gel via Toothbrushing in 7–8-Year-Old Schoolchildren: A Randomized Controlled Clinical Trial
Abstract: To assess the caries-preventive effectiveness of self-applied subacidic 0.5% sodium fluoride–hydrofluoric acid (NaF-HF) gel used during toothbrushing in children aged 7–8 years Objective: To assess the caries-preventive effectiveness of self-applied subacidic 0.5% sodium fluoride–hydrofluoric acid (NaF-HF) gel used during toothbrushing in children aged 7–8 years. Methods: This 1-year, multi-arm, double-blind, placebo-controlled, parallel-group randomized study evaluated the caries-preventive efficacy of self-applied 0.5% NaF-HF gel among primary schoolchildren. A total of 1200 …
Published in Research and Reviews: A Journal of Dentistry · Vol. 17, Issue 1, 2026 · pp. 14–19 Read article
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Numerical Analysis of NACA Airfoil 0012 at Different Attack Angles and Obtaining its Aerodynamic Coefficients
Abstract: Aircraft post-flight reduction is one of the most important research topics, since post-reduction is effective in all parameters of bird performance, such as maximum speed, fast acceleration, shortening the runway required, high maneuverability, and reduced fuel consumption. Therefore, it is important to examine how the force applied to the airfoil changes in different streams from an industrial point of view. In this study, NACA(National Advisory Committee for Aeronautics) Airfoil 0012 …
Published in Journal of Mechatronics and Automation · Vol. 6, Issue 3, 2019 · pp. 8–16 Read article
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Application of Refrigerator and Heat Pump Operated by Solar Photovoltaic Modules for Room Air Conditioning in Kolkata City
Abstract: India is a hot climatic country there is an urgent need for refrigeration mainly in May (the hottest month),March, and September (moderate hot), and also a heating requirement for cold weather (January). The present work deals with the air refrigeration in Kolkata city of a room maintained at 15oC in May(hottestmonth)(with evaporator temperature (12oC), condenser temperature (38oC)), at 20oC in March (with evaporator temperature (18oC), condenser temperature (36oC)) ,at 22oC …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 9, Issue 2, 2022 · pp. 11–23 Read article
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Adsorption Isotherm Study for Activated Carbon Produced from Cassava Peel
Abstract: Adsorption isotherm study of Activated Carbon produced from cassava peel was carried out using phenol solution as the adsorbate. Langmuir and Freundlich isotherm models were employed for the study. Varying ratios of 1:1, 0.75:1, 0.5:1, and 0.25:1 activating agent to cassava peel were used for the formulation of the Activated Carbon. The Freundlich R2 value for the 1:1, 0.75:1, 0.5:1, and 0.25:1 formulations was 0.822, 0.979, 0.971 and 0.974, respectively. …
Published in Journal of Materials & Metallurgical Engineering · Vol. 4, Issue 3, 2014 · pp. 8–12 Read article
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Proportion of Malnutrition in Children of 0–60 months Attending Well Baby Clinic of Tertiary Care Hospital of Gujarat
Abstract: Protein energy malnutrition is one of the leading causes of morbidity and mortality in children under the age of five in developing countries. India being one of these countries malnutrition is a major public health problem. A hospital based cross sectional study was conducted including 200 children of 0–60 months coming at Well baby clinic of tertiary care hospital to know the proportion of malnutrition. Anthropometric measurements were taken. The …
Published in Research and Reviews : A Journal of Immunology · Vol. 4, Issue 3, 2014 · pp. 1–5 Read article
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Indirect Treatment Comparison in Meta-Analysis Using Three Methods for Rheumatoid Arthritis
Abstract: Background: The data were extracted from the comparative effectiveness review (CER) on pharmacological treatments for rheumatoid arthritis (RA) developed by the International University of North Carolina Evidence Based Practice Center (UNC EPC). The included studies enrolled patients with active RA despite oral disease-modifying antirheumatic drugs (DMARD) therapy. The outcome measures of choice were American College of Rheumatology (ACR) 20/50/70 response rates.Objective: To compare and find the best treatment for RA …
Published in Research and Reviews : Journal of Computational Biology · Vol. 7, Issue 1, 2018 · pp. 22–27 Read article
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Lithium Induces Lower Specific Activity and Expression of Acetylcholinesterase in Old Aged Rats Brain and Liver for the Regulation of Acetyl Choline Cellular Signaling
Abstract: Acetylcholinesterase (AChE) acts on acetylcholine (ACh) to terminate its actions on the synaptic cleft by cleaving Ach to choline and acetate. This directly correlates with memory dysfunction and loss of cognitive functions in Alzheimer’s disease (AD) patients which was a continuous decline of the cholinergic neurotransmission in cortical and other regions of human brain. Specific activity and expression for AChEwere determined in LiCl2 treated young and old male wistar rat's …
Published in Research and Reviews: A Journal of Neuroscience · Vol. 8, Issue 2, 2018 · pp. 1–12 Read article
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A Descriptive Study to Assess the Knowledge, Attitude, and Practice of Mothers of Children (0–5 years) about Prevention and Management of Diarrhoea in a Selected Urban Slum Area of Delhi
Abstract: Introduction: Children are the future of the nation. Their healthy development is an investment innational development and productivity. Mothers are important persons in children’s lives. Objectives:The study was aimed to access the knowledge, attitude, and practice of mothers of children (0–5years) about prevention and management of diarrhoea, to relate the knowledge of mothers of children(0–5 years) with the attitude and practice about prevention and management of diarrhoea, toassociate the knowledge, …
Published in Journal of Nursing Science & Practice · Vol. 11, Issue 1, 2021 · pp. 51–58 Read article
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Prenatal estimation of the birth weight above 4,000 g (fetal macrosomia) using fetal abdominal circumference(AC)
Abstract: Purpose: This study is to determine if the birth weight above 4,000g can be correctly estimated by prenatal ultrasonographic measurements of abdominal circumference.Background: The delivery of macrosomatic fetus can increase the perinatal morbidity and mortality of both parturients and fetuses/neonates; the risk for shoulder dystocia, fetal asphyxia and birth trauma as well as vacuum or forceps delivery, hysterotomy and postpartum bleeding due to uterine atony. Thus, the accurate estimation of …
Published in Research and Reviews: A Journal of Medicine · Vol. 12, Issue 3, 2022 · pp. 27–33 Read article
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Seasonal Variations of Air Quality Measures In Warri and Effurun, Delta State, Nigeria.
Abstract: Air quality in Urban Cities like Warri and Effurun has been deteriorating over time. The distribution levels of air pollutants in the Warri and Effurun environments may be related to both natural and man-made factors. In addition to evaluating the quality of rainwater with regard to pH, heavy metals (Fe, Pb, Cd, As, Hg, CU, Zn), and some anions (Cl-, NO3-, SO42-, CO32-), this project study aims to investigate, using …
Published in International Journal of Pollution: Prevention & Control · Vol. 2, Issue 1, 2024 · pp. 23–48 Read article
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Design of Plant for the Production of 30,000 Tons Per Year Capacity of Dimethyl Carbonate (DMC) from Natural Gas Using Aspen HYSYS
Abstract: This study focuses on the design of a plant for the production of 30,000 tons per year of dimethyl carbonate (DMC) from natural gas. The plant design was carried out using the Aspen HYSYS Software. The data obtained from Kokori natural gas served as the primary feedstock for the plant. A kinetic model for the production of DMC was developed from existing literature, followed by the development of the mathematical …
Published in Emerging Trends in Chemical Engineering · Vol. 12, Issue 3, 2025 · pp. 45–60 Read article
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Determination of Selected Essential (Copper, Zinc) and Non-essential (Lead, Chromium, Cadmium) Heavy Metals in Some Single-use Plastics from Sokoto Metropolis, Nigeria
Abstract: Background and objectives: The objective of this study is to conduct Atomic Absorption Spectroscopy Analysis of selected essential (Cu, and Zn) and non-essential heavy metals (Cr, Cd, and Pb) in selected different single-use plastics that are in contact with food from Sokoto, Nigeria. Methods: The levels/concentrations of heavy metals in plastics were determined using atomic absorption spectroscopy. Findings: Copper levels range of 0.05000.001 to 0.90100.001 (ppm), while zinc levels are …
Published in Journal of Materials & Metallurgical Engineering · Vol. 12, Issue 3, 2022 · pp. 29–37 Read article
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A DESCRIPTIVE STUDY TO ASSESS THE LEVEL OF STRESS AMONG THE STAFF NURSES OF GOVT.HOSPITAL FATEHABAD
Abstract: The word stress was originally used by Selye. It is defined as an adoptive, responsive to an external situation that results in physical, psychological and behavioral deviation for organizational participants. Stress is the most common condition experienced by workers which occurs when their conflicts between workplace, workload and the individual’s ability to cope with the situation (AGOLLA, 2008). Problem resulting from stress includes -Decline in physical and mental health, Feeling …
Published in Journal of Nursing Science & Practice · Vol. 12, Issue 2, 2022 · pp. 14–18 Read article