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1182 articles for “Pressurizing”
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Ab Initio Investigation on Half-Heusler Compounds CoVZ (Z = P, Bi, Sb, As): Understanding Structural, Electronic, Magnetic, and Elastic Behavior
Abstract: The structural, electrical, mechanical, and magnetic properties of Half-Heusler CoVZ (Z= P, Bi, Sb, and As) compounds have been studied using the ab initio method. Here, we use the full potential linearized augmented plane wave (FP-LAPW) method, which is implemented by WIEN2k. The compounds CoVZ (Z= P, Bi, Sb, and As) are near to the Fermi level as implemented in the WIEN2k algorithm, exhibiting 100% spin polarization with finite band …
Published in Journal of Microelectronics and Solid State Devices · Vol. 10, Issue 3, 2023 Read article
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Thorium the Fuel of the Future to Revitalize Nuclear Power Generation
Abstract: After disasters like Kyshtym, Windscale, Fukushima, Chernobyl etc., nuclear energy carried a dreaded stigma. The cost of nuclear power generation in the conventional way is on the rise, and so there is a resurgence in nuclear technology using thorium as fuel. There is a great pressure from international community to reduce carbon emission. So many countries are looking for a path to generate energy that is distinctly different but pays …
Published in Journal of Nuclear Engineering & Technology · Vol. 12, Issue 3, 2022 · pp. 1–26 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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To explore the effect of polyethylene glycol additive on mechanical and gas permeation properties of polyvinyl alcohol membranes
Abstract: Polyvinyl alcohol (PVA) membranes were prepared by solution casting and blended with Polyethylene glycol (PEG) in de-ionized water which led to the formation of porous and flexible membranes. Extensive experimentation were performed, in order to find out that at what composition of PEG pores will be generated in the PVA membranes. The PVA polymer is a hard and crystalline thermoplastic so high concentrations of PEG were used, i.e. 40 wt%, …
Published in Journal of Polymer & Composites · Vol. 7, Issue 1, 2019 · pp. 27–33 Read article
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Sugarcane Bagasse: A Promising Source for the Production of Nanocellulose
Abstract: AbstractThis paper reviews the recent studies of extraction of nanocellulose (cellulose nanofibers, nanocrystals, nanowhiskers, nanocrystalline cellulose, etc.) from sugarcane bagasse as agro-waste by different extraction methods such as acid-hydrolysis, alkaline-hydrolysis, enzymatic-hydrolysis, sonication, high-pressure homogenization, and shear ultrafine friction grinding, disk-grinder, including potential applications. Keywords: Sugarcane bagasse, nanocellulose, nanofibres, nanocrystals, acid-hydrolysis
Published in Journal of Polymer & Composites · Vol. 2, Issue 3, 2023 · pp. 23–27 Read article
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Effect of Surface Free Energy on the Surface-Driven Capillary Flow in SU-8 based Glass Microfluidic Devices
Abstract: Surface-driven capillary flow of dyed water is recorded in the SU8 based glass microfluidic devices fabricated by the standard cleanroom processes. The effect of surface wettability on the surface-driven capillary flow is studied in the individual SU8 based microfluidic devices of glass bottom wall and polyimide bottom wall. The surface-driven capillary flow is faster on the glass bottom wall surface due to the higher polar component of solid surface free …
Published in Journal of Polymer & Composites · Vol. 4, Issue 3, 2016 · pp. 1–7 Read article
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Effect of Shock Waves on the Hardness of Graphene Reinforced Aluminium Composites
Abstract: The advantageous properties of Aluminium metal components have proved their suitability in the field of aerospace industry, naval, sports, and other structural applications. Its disadvantages like high wear rate, less hardness limits its application for some special applications. Graphene is an allotropic form of carbon which exhibits high tensile strength, better co-efficient of friction and an easily derivable material from the carbon which is abundantly available in nature. Reinforcement of …
Published in Journal of Polymer & Composites · Vol. 8, Issue 1, 2020 · pp. 32–38 Read article
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Surface modification of polymeric membranes using plasma treatment: A comprehensive review
Abstract: In the contemporary science era, polymer membranes have a wide range of services. Polymeric membranes have very good bulk properties having potential applications in various processing industries.These membranes can be even modified using various techniques. The surface modifications of membranes to incorporate various hydrophilic functional groups without changing the bulk properties has gained popularity. The surface becomes hydrophilic because new polar functional groups are formed. For instance, after oxygen and …
Published in Journal of Polymer & Composites · Vol. 8, Issue 2, 2020 · pp. 91–100 Read article
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A Contemplating Review on Pure and Modified Polymeric Membranes for O2/N2 Separation
Abstract: The separation of O2/N2 by using membrane technology from air got the interest of the process industries due to its advantage over the conventional technologies like cryogenic distillation and pressure swing adsorption, in terms of simplicity, size, economic and power consumption. Membrane material selection for the separation of O2/N2 is challenging because most of the materials have low selectivityand others have low permeability. To meet both the selectivity of O2/N2 …
Published in Journal of Polymer & Composites · Vol. 8, Issue 2, 2020 · pp. 9–32 Read article
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Engineering Properties of Alkali Activated Materials Produced from Thu Duc Water Plant Waste Sludge, Fly Ash, and Alkaline Activator by Semi-dry Pressing Method
Abstract: Alkali activated material is a product manufactured to serve the needs of construction. Theproduction of alkali activated material has many advantages compared to other traditional bakedmaterials. The product is not heated at high temperature, so it saves energy and reduces the amountof waste impacting negatively to ecology system and human life. The raw materials for production ofalkali activated materials are re-used from other industrial solid wastes such as fly ash, …
Published in Journal of Polymer & Composites · Vol. 9, Issue 1, 2021 · pp. 39–48 Read article
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Surface Engineering of Materials: A Review Based on Applications
Abstract: Surface characteristics of material play an important role for various applications. Like, there are many applications of the polymeric membranes in the fields of biomedical, filtration, food processing from the past few decades. But various problems have been faced in their applications due to bacterial and non-bacterial contamination on the surfaces. Many researchers have investigated the surface chemistry and roughness of the membranes to identify their properties and the difficulties …
Published in Journal of Polymer & Composites · Vol. 9, Issue 2, 2021 · pp. 45–56 Read article
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Studies on Development of a Super Adsorbent Polymer for the Removal of Nitrogenous Waste Products from Urine Samples and in Intestinal Fluid Simulator
Abstract: Introduction: Colonic dialysis (CD) has been proposed as an appropriate candidate for excretion of electrolytes, nitrogen waste products and excessive fluid using gastrointestinal (GI) tract. Methods: The GI environment simulated in terms of concentrations of nitrogenous waste products, electrolytes, temperature and pressure. In addition, 24-hour urine samples were obtained from 10 healthy adult volunteers. Adsorbing capacity of Super Adsorbent Polymer (SAP) evaluated in GI tract simulating system and urine samples. …
Published in Journal of Polymer & Composites · Vol. 10, Issue 2, 2022 · pp. 1–7 Read article
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Structural and Electrical Properties of Low-Energy Ion Beam Kr-Irradiated In/Se Bilayer
Abstract: In the present work, In (~50 nm) over Se (~50 nm) thin films were deposited successively on an Si substrate by e-beam evaporation method under 2×10–5 mbar pressure. The In/Se bilayers were irradiated with low-energy ion beams of 350 keV Kr+1 with fluence of 3 × 1016 ions/cm2. The sample was subsequently characterized for phase formation using X-ray diffraction and thickness profile using Rutherford backscattering spectrometry analysis. In the pristine …
Published in Journal of Polymer & Composites · Vol. 11, Issue 1, 2023 · pp. 91–96 Read article
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Addressing Global Disparities in Prosthetic Mobility: An Experimental Evaluation of Ankle-Foot Orthosis for Sustainable and Efficient Integration with Vehicle Structures and Systems
Abstract: Over the past two decades, the prosthetic foot industry has made significant advancements, greatly enhancing the quality of life for individuals with lower limb amputations in industrialized countries. However, these innovations remain out of reach for many in less developed regions due to high costs, limited durability, maintenance demands, and accessibility challenges. There is an urgent need to develop highly functional, cost-effective, environmentally friendly, and resilient prosthetic feet that can …
Published in Journal of Polymer & Composites · Vol. 12, Issue 1, 2024 · pp. 44–52 Read article
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Investigating the Influence of Shock Waves on the Dielectric Characteristics of ZMTC Crystals
Abstract: Zinc mercury thiocyanate (ZMTC) is an organometallicnonlinearly optical (NLO) single crystal that has been grown in an aqueous solution using the SR technique. Novel, non-destructive method is suggested and shown to enhance the electrical properties of crystals through the use of shock waves. A tabletop shock tube, operating at a Mach number of 1.7, generates shock waves that are subsequently loaded into a zinc mercury thiocyanate (ZMTC) crystal. This process, …
Published in Journal of Polymer & Composites · Vol. 12, Issue 2, 2024 · pp. 84–98 Read article
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GAS HYDRATES AN UNCONVENTIONAL RESOURCE FOR FUTURE
Abstract: AbstractThis paper presents an overcome of Gas hydrates (GH) as a potential alternate to India’s energy source. Gas hydrates are Icy-white crystalline form approximately 99% of gas and 1% of water which are found under high pressure & low temperature in places such as permafrost (polar) region, shallow offshore sediments of arctic &sub-arctic region, and Deep ocean sediments in the tropic regions. This term have attracted some Energy-Starving countries like …
Published in Journal of Petroleum Engineering & Technology · Vol. 8, Issue 2, 2018 · pp. 22–26 Read article
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Investigation on the Benefits of Steam Adsorption and Distribution during Cyclic Steam Injection to Improve Oil Recovery - FNE Case Study, Sudan
Abstract: One of the main types of Enhanced Oil Recovery (EOR) methods is thermal stimulation method which is an increasingly common method of extracting heavy oil. there are different forms of the technology of thermal method Cyclic steam stimulation, Steam flooding and In-situ combustion “Fire flooding” are commonly applied to oil reservoirs, which are relatively shallow very viscous oil at the reservoir temperature, the most widely used steam injection methods for …
Published in Journal of Petroleum Engineering & Technology · Vol. 8, Issue 3, 2018 · pp. 1–21 Read article
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Challenges and Prospects of the Use of Horizontal Directional Drilling Techniques for Laying Oil and Gas Pipelines in Nigeria
Abstract: Nigeria pipelines, especially the petroleum and petroleum product pipelines are always vandalized by the sabotage. Huge amount of money is expended to put the damaged pipeline in good shape; and petroleum and petroleum product transfer is sometimes hampered due to leakages and damages caused by the oil thieves. Also huge money is being budgeted yearly to secure the pipelines. To combat this problem, horizontal directional drilling (HDD) is being proposed. …
Published in Journal of Petroleum Engineering & Technology · Vol. 7, Issue 2, 2017 · pp. 9–20 Read article
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Experimental Analysis of the Effect of Fine Milled Husk of Rice as a Novel Filtration Control Agent for Water Based Drilling Fluid System
Abstract: Drilling operation is a complex process that requires integration of various engineering systems. As the drilling continues, the formation encountered offers challenges to wellbore integrity as pressure increases with depth. The influx of formation fluid is contained by the overbalance provided by weighted drilling fluid column. Another critical function of the mud is to restrict the filtration fluid lost to the formation by forming a suitable mud-cake around the wellbore. …
Published in Journal of Petroleum Engineering & Technology · Vol. 7, Issue 1, 2017 · pp. 4–8 Read article
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Productivity of Hydraulically Fractured Calcite Rich Shale Reservoirs Enhanced by Acid
Abstract: The current low oil prices have highlighted the need for enhancement to current production from shale formations. Prolonging the production life and increasing productivity of the fracture network in the shale plays can be a way to improve the economics. Many shale wells, drilled and completed based on current completion strategies, show sharp decline after initial flash production. One of the reasons behind this can be attributed to closure of …
Published in Journal of Petroleum Engineering & Technology · Vol. 6, Issue 1, 2016 · pp. 54–68 Read article