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429 articles for “High pressure”
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Catalyst: Free Synthesis of Bioactive Molecules via Green Chemical Principles
Abstract: This study explores the catalyst-free synthesis of bioactive molecules, emphasizing the application of green chemical principles. Traditional synthetic methods often rely on hazardous reagents, solvents, and metal catalysts, which can pose significant environmental and health risks. In contrast, the catalyst-free approach leverages benign reaction conditions, such as solvent-free systems, ambient temperature, and pressure, to achieve efficient and selective transformations. We present a comprehensive investigation into various bioactive molecule syntheses, including …
Published in Journal of Catalyst & Catalysis · Vol. 11, Issue 1, 2024 · pp. 17–21 Read article
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Effect of Blunt Truncation in an Aerospike Nozzle
Abstract: Aerospike nozzles are gaining attention as a more advanced alternative to conventional bell nozzles, mainly because they can perform efficiently across a wide range of altitude conditions. Unlike traditional converging–diverging nozzles, aerospike designs naturally adjust to changes in ambient pressure, allowing the exhaust flow to expand more effectively. This results in better thrust performance under varying operating conditions, making them a strong candidate for future aerospace propulsion systems. In this …
Published in Journal of Aerospace Engineering & Technology · Vol. 16, Issue 2, 2026 Read article
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Thermo-Hydraulic Performance of a Double-Pipe Double-Pass Heat Exchanger using Annular Fins and Graphite-filled Epoxy Composite Tubes
Abstract: Double-pipe heat exchangers remain one of the most widely adopted thermal devices because of their simple construction, operational reliability, and ease of maintenance. Nevertheless, their performance is often constrained by the limited heat transfer area of smooth tubes and the long-term challenges associated with metallic materials, including corrosion, scaling, and structural weight. Recent advances in thermally conductive polymer composites provide an opportunity to overcome these limitations by replacing conventional metals …
Published in Journal of Polymer & Composites · Vol. 14, Issue 5, 2026 Read article
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Comprehensive Evaluation of Abrasive Water Jet Machining of Fiber Reinforced Polymers
Abstract: The machining process of Carbon Fiber Reinforced Polymers is significant and the researchers are continually working to achieve the better machining qualities. There are numerous issues with the machining abilities of traditional machining techniques for fiber reinforced polymers because of heterogeneous and anisotropic properties of FRP materials. Advanced manufacturing processes such as laser beam, ultrasonic, EDM, water jet and abrasive water jet machining are the alternatives to the conventional making …
Published in Journal of Polymer & Composites · Vol. 7, Issue 1, 2019 · pp. 7–16 Read article
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Bonding Strength Characteristics of FRP Cylindrical Composites Under Hygrothermal Loading
Abstract: This study investigates the bonding strength characteristics and stress distribution patterns in fiber-reinforced polymer (FRP) cylindrical composites subjected to hygrothermal loading conditions. A four-phase cylindrical model incorporating AS-Graphite and S-Glass fibers with low modulus epoxy coating was analyzed under four distinct pressure loading conditions (25.984, 38.976, 77.953, and 155.906 MPa). Comprehensive stress analysis revealed significant variations in von-Mises stress, maximum principal stress, and minimum principal stress across fiber, coating, matrix, …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 950–967 Read article
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Design Conceptualization and Computational Analysis of Cryogenic Engine Nozzle-ABYOM
Abstract: The main purpose of this paper is to design a cryogenic engine nozzle with specified dimensions using CATIA V5 software and analyze the nozzle using ANSYS software. The realizable k-ε viscous model was used for calculation and the Hydrogen (H2) had retained as an ideal gas. The CFD simulations were done on the nozzle to find the pressure, density, velocity, and temperature. In the graph, there are 500 points streamlined …
Published in Journal of Materials & Metallurgical Engineering Read article
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Design conceptualization and computational analysis of cryogenic engine nozzle -ABYOM
Abstract: The main purpose of this paper is to design a cryogenic engine nozzle with specified dimensions using CATIA V5 software and analyze the nozzle using ANSYS software. The realizable k-ε viscous model was used for calculation and the Hydrogen (H2) had retained as an ideal gas. The CFD simulations were done on the nozzle to find the pressure, density, velocity, and temperature. In the graph, there are 500 points streamlined …
Published in Journal of Materials & Metallurgical Engineering · Vol. 12, Issue 2, 2022 · pp. 14–23 Read article
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Review Paper of the Rich Floral and Faunal Diversity in Chhattisgarh, India
Abstract: Chhattisgarh, a state in central India, is renowned for its rich biodiversity, encompassing a wide variety of plants and animals. This review highlights the critical role that sacred groves—small, often isolated forest patches preserved by local communities—play in maintaining this biodiversity. These groves are repositories of genetic diversity and serve as sanctuaries for numerous species, many of which are threatened by habitat loss and fragmentation. However, the integrity of these …
Published in Research & Reviews : Journal of Botany · Vol. 13, Issue 3, 2024 · pp. 23–38 Read article
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Aerodynamic Optimization of UAV Wings Using Machine Learning
Abstract: Unmanned Aerial Vehicles (UAVs) are increasingly deployed across defense, transportation, agriculture, and environmental monitoring, demanding improved aerodynamic efficiency to enhance endurance, stability, and payload capacity. Traditional aerodynamic optimization approaches, relying on computational fluid dynamics (CFD) simulations and wind tunnel experiments, are often time-consuming and computationally expensive. This study proposes a machine learning (ML)-driven framework for the aerodynamic optimization of UAV wing geometries, aiming to significantly reduce design cycles while improving …
Published in International Journal on Drones · Vol. 2, Issue 1, 2026 · pp. 1–7 Read article
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Process Scheme for Effluent Treatment for Reinjection of Produced Water
Abstract: The scope of the study is to conceptualize a treatment process for produced water treatment and reinjection into reservoir for pressure support. ABC field is producing 800 m3/day, with 60% water cut. To access the suitability of using effluent water for reinjection in ABC field, produced water analysis and treated water parameters have been considered for conceptualizing the treatment design. Produced water analysis reveals its inferior quality in terms of …
Published in Journal of Petroleum Engineering & Technology · Vol. 5, Issue 2, 2015 · pp. 47–52 Read article
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A Review on Extraction of Liquid Fuel from Waste Plastic
Abstract: Liquid fuel is a plastic-based derived fuel. A rapid economic growth and consumption of plastic across globe, it creates a negative impact on environment and affects the human health. The consumption trend of natural fossil fuel and other renewable resources indicating that a resources are depleting after a certain decades. Thus, to find an alternative energy to secure the future demand of world. Waste plastic are attractive way to address …
Published in Journal of Petroleum Engineering & Technology · Vol. 9, Issue 3, 2019 · pp. 34–40 Read article
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Analysis on Heat Recovery of an Engine Radiator using (CH2OH)2 Based Nanofluid Having TiO2 Nano Particles
Abstract: Automobile engine produces high amount of heat in the process of combustion. This internal heat rises the temperature of engine to very high level and can damage or seize the engine parts. Hence for the safety of engine components, it needs to run at much lower temperature, which is called engine working temperature. Ethylene glycol based nanofluids are used as the working fluids for the radiator and Titanium Dioxide, Silver, …
Published in Journal of Thermal Engineering and Applications · Vol. 6, Issue 2, 2019 · pp. 10–23 Read article
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Constructed Wetlands: An Emerging Paradise for Sustainable Treatment of Wastewater
Abstract: AbstractSufficient supply of water both in terms of quantity and quality has always been a provoking effort mostly across all the developing cities of the world. Situation is nowhere different in India too where past decades have seen a rapid growth in not only industries but urbanization as well and availability of water round the country shows a wide disparity of range from about 80 litres per capita per day …
Published in Journal of Water Resource Engineering and Management · Vol. 5, Issue 1, 2018 · pp. 1–5 Read article
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Thin Film Technology in Sensor Manufacturing – A Technical Discussion
Abstract: Thin‑film technology has become the cornerstone of modern sensor manufacturing, enabling the convergence of miniaturisation, multifunctionality, and cost‑effective mass production. This paper surveys the latest advances in deposition techniques—ranging from magnetron sputtering and chemical vapour deposition to atomic‑layer deposition (ALD) and ink‑jet‑printed sol‑gel processes—and examines how their unique material‑control capabilities translate into performance gains across the sensor spectrum (chemical, physical, and bio‑sensing). By integrating nanoscale thickness control (≤ 10 nm) …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 13, Issue 1, 2026 · pp. 47–57 Read article
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Land Use and Land Cover Change: A Comprehensive Review of Environmental Implications
Abstract: Changes in land use and cover have a substantial impact on environmental dynamics and sustainability. These changes arise from various human activities, including urbanization, agriculture, and forestry, and have profound implications for biodiversity, ecosystem services, and land health. As urban areas expand, often at the expense of agricultural and forested landscapes, the transformation of land use alters ecological processes, leading to habitat loss and fragmentation. This article examines the implications …
Published in International Journal of Land · Vol. 1, Issue 2, 2024 · pp. 01–05 Read article
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Application of Medicinal Plants to Cure Mental Disorders
Abstract: Mental fitness is a state of well-being in which individuals apprehend their talents, manage existing pressures, remain efficient, and contribute to their groups. Mental contamination regularly used interchangeably with intellectual illness, is vital to apprehending and addressing man or woman desires and challenges. Schizophrenia, a psychological disorder characterized by hallucinations and delusions, is a complex situation with two important classes: bad symptoms (withdrawal from social interactions, loss of force, and …
Published in Research and Reviews : A Journal of Biotechnology · Vol. 14, Issue 1, 2024 · pp. 69–78 Read article
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Recording of Leakage-free Surface-Driven Capillary Flow of Dyed Water in the Dual Sudden Contraction Microchannels
Abstract: Dual sudden contractionpolymethylmethacrylate (PMMA) microchannels are fabricated by the maskless lithography, hot embossing lithography, direct bonding technique, and atmospheric pressure air dielectric barrier discharge (DBD) plasma processing. The surface-driven capillary flow of dyed water is faster on the processed PMMA surface than the pristine PMMA surface. The surface-driven capillary flow of dyed water is slower in the wider portion and faster in the narrower portion of any dual sudden contraction …
Published in Emerging Trends in Chemical Engineering · Vol. 4, Issue 2, 2017 · pp. 40–44 Read article
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Development of New Castable Al-Alloy-TiB2 Metal Matrix Composites
Abstract: There has been a constant drive for replacing monolithic aluminum alloys by aluminum-based metal matrix composites (MMCs) in many industrial applications where high stiffness and high strength to weight ratio are required. The present paper describes a cost-effective route to produce Al-Alloy-10 wt % TiB2 metal matrix composites by in situ molten flux assisted reaction synthesis. In Situ LM25-TiB2 composite material prepared by reaction synthesis was cast into thick as …
Published in Journal of Materials & Metallurgical Engineering · Vol. 2, Issue 1-3, 2012 · pp. 65–70 Read article
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Develop the Design of Sustainable Polymer Materials: Applying Reinforcement Learning, IoT-Enabled Monitoring, and Data-Driven Manufacturing Approaches
Abstract: Sustainable polymer materials development is a must due to resource constraints, environmental concerns, and the demand for designed materials with high performance. When it comes to material optimization, energy utilization, process unpredictability, and lifecycle sustainability, traditional polymer production methods have their challenges. Reinforcement Learning (RL), Internet of Things (IoT) monitoring, and data-driven production are utilized in the design and manufacturing of sustainable polymer materials. It is recommended to use Internet …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 1207–1231 Read article
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Real Time Automation of Boiler Arrangement Using PLC & SCADA
Abstract: An automation system that controls boilers that use PLC, SCADA, and sensors is called a supervisory control along with a programmable acquisition system (PACS). Communication wires were used to link the SCADA and PLC. The first part of the paper discusses how to continuously maintain a particular boiler temperature by feeding the boiler with inputs at the appropriate temperature. Many steps must be taken to go from a manually operated …
Published in Journal of Thermal Engineering and Applications · Vol. 10, Issue 2, 2023 · pp. 37–43 Read article