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1358 articles for “w/c ratio”
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A New Computational Method for Dust and Gas Dynamics in Protoplanetary Discs
Abstract: The simultaneous evolution of dust and gas in protoplanetary discs regulates essential events in planet formation, such as dust accumulation, migration, and the initiation of gravitational instabilities. Nevertheless, precisely modelling this interaction continues to provide a significant computing problem owing to the extensive variety of spatial and temporal scales involved. In this study, we introduce an innovative computational framework for simulating dust-gas dynamics in protoplanetary discs, integrating a two-fluid hydrodynamical …
Published in International Journal of Universe · Vol. 1, Issue 2, 2025 · pp. 35–46 Read article
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Design and Analysis of a 100 kWp Grid Connected PV Solar Plant at a Coastal Area of Bangladesh
Abstract: In Bangladesh, the usage of electricity is continuously increasing. Govt. is also trying to increase the electricity production by installing new power plants to meet the additional power demands. Most of the power plants are natural gas-based, coal-based or nuclear power-based. Considering the greenhouse effect; solar power plants could be one of the best solutions to meet the additional power demands as well as it has a lot of financial …
Published in Journal of Power Electronics and Power Systems · Vol. 11, Issue 3, 2021 · pp. 33–39 Read article
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Sulfur recovery process simulation and optimization
Abstract: Objective of this work is to simulate the sulfur recovery process by using the latest version of Aspen HYSYS V10 simulation program. Sulfur recovery model used in the simulation program is Claus three stage process. A total recovery of 97.85% sufur was recovered from the rich acid gas feed. The effects of H2S/SO2 ratio, outlet sulfur dew point margin, catalytic stage temperature, CS2 and COS concentrations, role of catalyst, acid …
Published in Emerging Trends in Chemical Engineering · Vol. 5, Issue 3, 2018 · pp. 32–40 Read article
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On Pell Functions and Pell Numbers
Abstract: Number sequences have been studied by many scientists for many years because they find applications in nature and many branches of science. The most well-known number sequence among these integer sequences is the Fibonacci sequence. Later, these integer sequences were generalized and many number sequences were defined and their properties were examined. One of these is Pell number sequences. Pell numbers can be calculated in a way similar to the …
Published in Research & Reviews: Discrete Mathematical Structures · Vol. 10, Issue 3, 2023 · pp. 1–9 Read article
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Studying the Effects of Reheat on R134A Cycle Performance using Industrial Air-Conditioning Training Equipment
Abstract: This paper presents an apparatus-based experiment for teaching air conditioning and refrigeration in undergraduate engineering hands-on based learning curricula. Results for an R134A based refrigeration and air conditioning performance are shown in this paper illustrating the effects of re-heat on the COP of the cycle as well as the use on a LabView interface to extract test data. The primary use of this equipment is to show various “what-if” scenarios. …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 1, Issue 2, 2014 · pp. 1–6 Read article
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Biochemical, Antimicrobial Characterization of Dooars Tea (Camellia sinensis) Clone during CTC Manufacturing
Abstract: Industrial manufacturing of CTC tea includes different stages. The polyphenol content catechins are oxidized from stage 1–4 (including withering, cutting/tearing, fermentation/oxidation and drying processes). The catechins are polymerized to tannins with the help of enzyme polyphenol oxidase (PPO), both classes of compounds show differential antioxidant (total flavonoid content, UV absorbing compounds content, antioxidant enzyme Phenylalanine ammonia lyase activity is changed), antimicrobial and therapeutic potentials, usually reduced in late (dried) stages. …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 5, Issue 2, 2015 · pp. 5–14 Read article
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Numerical Investigation on Performance Analysis of Turmeric Curing Steam Generator
Abstract: In this paperarticle, an analysis of the on- field steam temperature produced in a plain tube- type turmeric curing steam generator and a numerically modified steam generator are is presented. The performance of the steam generator used to cure turmeric is studied using a numerical model. The numerical model is validated with on- field data of from a plain- tube type turmeric curing steam generator. The simulation results and on-field …
Published in Journal of Aerospace Engineering & Technology · Vol. 13, Issue 2, 2023 · pp. 11–19 Read article
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Tribological Assessment of Chemically Modified Jatropha Curcas Oil Developed by Addition of Graphite Nanoparticles for Biolubricant Applications
Abstract: As an alternative to petroleum-based lubricants, environmentally friendly bio-based lubricants are gaining popularity in the lubrication industry. A sustainable bio-based lubricant, Jatropha Curcas Oil (JCO) incorporates nanoparticles as additives. Nevertheless, this oil cannot be used directly as a biolubricant due to its low oxidative stability. By redesigning the oil's molecular structure through chemical modification, this restriction can be overcome. Epoxidation and oxirane ringopening were the two steps used in this …
Published in Journal of Polymer & Composites · Vol. 13, Issue 2, 2025 · pp. 47–58 Read article
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Studies in Effect of Methyl Methacrylate to Butylacrylate Ratio on the Properties of TiO2/poly(methyl methacrylate-co-butylacrylate) Core–Shell Composite Nanoparticles Prepared by Microemulsion Polymerization
Abstract: AbstractTitanium dioxide, as a core, was coupled with the poly(methyl methacrylate-co-butyl acrylate) using amino propyltriethoxy silane as a coupling agent. A two-stage semi-continuous microemulsion polymerization method was used for the synthesis of these core–shell nanoparticles. Ratio of methyl methacrylate to butyl acrylate was varied in the shell of the nanoparticles and the prepared core–shell composite nanoparticles were characterized by Fourier transform infrared spectroscopy, X-ray diffractometer, differential scanning calorimetry, scanning electron …
Published in Journal of Polymer & Composites · Vol. 1, Issue 3, 2013 · pp. 32–39 Read article
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Brain Stroke Detection Using Deep Learning and Grad-CAM Explainability Framework
Abstract: Seconds matter when a brain stroke occurs; it is a race against time where rapid, precise intervention is the only way to preserve a patient’s quality of life. This research introduces a deep learning framework designed to act as a vital ally for clinicians, providing automated, high-speed stroke detection through brain MRI analysis. At the heart of our approach is EfficientNetB0, a sophisticated neural network chosen for its ability to …
Published in Research and Reviews: A Journal of Neuroscience · Vol. 16, Issue 2, 2026 · pp. 8–14 Read article
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Evaluation of Abrasive Grinding Parameters in Crankshaft Manufacturing
Abstract: Grinding is a metal cutting operation performed by means of rotating abrasive tool, called “Grinding wheel”. Grinding is done o surface of almost all conceivable shapes and materials of all kinds. In grinding it is possible to achieve very accurate dimensions and smoother surface finish in a very short time and it is only a method after Harding. High temperature to the tune of the 1000 degree Celsius to 1400 …
Published in Trends in Machine design · Vol. 7, Issue 1, 2020 · pp. 28–33 Read article
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Evaluating the Optimal Alccofine-1203 Replacement Ratio in M20 Grade Concrete
Abstract: The primary objective of this research is to investigate the potential of partially replacing cement with Alccofine 1203 in M20 grade control concrete and to evaluate the resulting effects on the mechanical properties of the concrete. Alccofine 1203, a high-performance mineral admixture known for its ultrafine particle size and high reactivity, was used as a partial cement substitute at varying replacement levels of 5%, 10%, and 15% by weight of …
Published in Journal of Polymer & Composites · Vol. 13, Issue 4, 2025 · pp. 294–299 Read article
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Oxadiazole Derivatives Recent Progress in Synthesis and Bioactivity
Abstract: Over the past few decades, significant advancements have been made in the development of heterocyclic derivatives, leading to the production of numerous novel agents, both synthetic and natural in origin. Because of its numerous biological properties, including antibacterial, antiviral, and antifungal properties, thiazole is a special five-membered heterocyclic motif among heterocyclic compounds. It is utilized as a fundamental building block in many pharmaceutically significant compounds. To the best of our …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 15, Issue 1, 2024 · pp. 62–67 Read article
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Enhancement in Performance of Conventional concrete mixes by using hybridization with steel & polypropylene fibres
Abstract: This experimental study evaluates the influence of incorporating steel and polypropylene fibers on the mechanical performance of high- performance concrete (HPC) across M30, M35, and M40 grades. This research focuses on evaluating the mechanical properties of High- Performance Concrete (HPC) enhanced with a hybrid reinforcement system consisting of steel fibers (SF) and polypropylene fibers (PPF). Steel fibers are utilized to improve the compressive and tensile strengths, while polypropylene fibers contribute …
Published in Journal of Structural Engineering and Management · Vol. 12, Issue 3, 2025 Read article
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Power-Efficient Design Strategies for Static Random Access Memory with Memory Blocks: A Review
Abstract: For many years, CMOS technology has been able to achieve high integration density and great performance by scaling down its feature size and threshold voltage. Power consumption has been a major concern in VLSI design due to the ongoing drop in aspect ratio and the related improvements in chip density and operation frequency. SRAM is a type of random-access memory in which an interruption in power causes data loss. For …
Published in Journal of Microcontroller Engineering and Applications · Vol. 10, Issue 3, 2023 · pp. 23–32 Read article
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Synthesis and Application of Zeolite A from Kaolin Obtained from Dei Dei, Bwari Area Council, Abuja
Abstract: In this study, the synthesis of Zeolites from Kaolin obtained from Dei Dei, Bwari Area Council, Abuja was successfully carried out using standard methods (novel process of dealumination). Meta kaolinization was achieved by thermal activation of kaolin at the temperature range of between 600–900°C for 2 hours in a furnace and followed by dealumination with NaOH in an oven at 120°C for 6 hrs in order to achieve a desire …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 24, Issue 3, 2022 · pp. 34–42 Read article
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A Review on Anesthetic Drug Discovery with Computer Aided Drug Design
Abstract: In contemporary medicine, anaesthesia is essential for enabling surgical procedures, pain control, and patient comfort. Finding and creating safe and efficient anaesthetics is crucial to enhancing patient outcomes and developing the medical field. In this review, we provide a comprehensive overview of anesthetic drug discovery with a focus on the integration of computer-aided drug design (CADD) methodologies. Beginning with an exploration of anesthesia mechanisms and targets, we delve into the …
Published in International Journal of Antibiotics Read article
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Revolutionizing Vaccine Development:The Transformative Role of Bioinformatics in Designing Next-Generation Immunotherapies
Abstract: Vaccines have long been central to the prevention and control of infectious diseases, dramatically reducing morbidity and mortality worldwide. In the modern era, the integration of bioinformatics has revolutionized vaccine development by enabling rapid, precise, and cost-effective identification of potential vaccine targets. This seminar explores the multifaceted applications of bioinformatics in vaccinology, including antigen discovery, epitope prediction, structural modeling, molecular docking, and immunoinformatics-driven vaccine design. Special emphasis is placed on …
Published in Research & Reviews: A Journal of Bioinformatics · Vol. 12, Issue 3, 2025 · pp. 19–33 Read article
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Nano- Catalysts for Enhanced Performance in Hydrogenation Reactions
Abstract: The development of nano-catalysts has revolutionized the field of hydrogenation reactions, offering unparalleled efficiency and selectivity. This study explores the synthesis, characterization, and application of novel nano-catalysts designed to enhance hydrogenation processes. By leveraging advanced materials science techniques, we have engineered catalysts with precisely controlled particle sizes, shapes, and surface properties. These nano-catalysts exhibit remarkable activity and stability, attributed to their high surface area-to-volume ratios and unique electronic structures. Our …
Published in Journal of Catalyst & Catalysis · Vol. 11, Issue 1, 2024 · pp. 22–27 Read article
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Numerical Investigation on Concrete Filled Steel Tube Composite Circular Columns Under General Loading
Abstract: Concrete-filled steel tube (CFST) composite columns are extensively utilized in civil engineering constructions because of their numerous structural advantages, such as superior seismic performance, high load- bearing capacity, fire resistance, remarkable ductility, and ability to absorb energy effectively, especially in areas prone to seismic activity. CFST columns are employed in tall buildings and bridges to enhance rigidity and increase bearing capacity, but their behavior can be affected by buckling. There …
Published in Journal of Polymer & Composites · Vol. 13, Issue 2, 2025 · pp. 164–199 Read article