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30 articles for “Sandwich”
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Failure Analysis of Hybrid Natural/Synthetic Fiber Composite Laminates in The Application of Hybrid Composite Pressure Vessel
Abstract: Composite laminates are frequently utilized in multiple sectors. The growing complexity of composites in aircraft applications necessitates hybridization of these materials. These hybrid laminates consist the combination of one natural fiber and two selected synthetic fibers. This work investigates three different six-layer hybrid composite laminate combinations: Jute2/Carbon2/Jute2, Jute2/Glass2/Jute2, and Carbon2/Glass2/Carbon2, with helix angles of 0° and 90° and a volume fraction of 50% fiber content. Each specimen is fabricated utilizing …
Published in Journal of Polymer & Composites · Vol. 13, Issue 3, 2025 · pp. 85–98 Read article
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Growth of Cu2O on TCO by SILAR method acts as an alternative buffer electrode layer towards the development of organic solar cell
Abstract: In many types of optoelectronic devices, layer of PEDOT: PSS is sandwiched between the indium-tin oxide (ITO) electrode and the active layer. Buffer PEDOT: PSS provides a well- defined work function which is higher than that of ITO (4.2eV), it smooths the ITO surface and so avoids shorts, and it also protects the active layer from ingress of indium or oxygen, leading to longer device lifetimes. The role of PEDOT: …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 13, Issue 2, 2026 · pp. 20–27 Read article
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Tailoring the Compressive Behavior of Tetrachiral Auxetic Structures Through FDM Process-Parameters
Abstract: This research evaluates how fused deposition modeling (FDM) fabrication process parameters affect the compressive behavior of tetrachiral auxetic structures created from Polylactic Acid (PLA). Auxetic materials have several useful properties, including reversible deformation and high-energy absorbing capabilities, which are beneficial to creating ultra-lightweight structural, protective, and shock-resistance designs. Among the available auxetic topologies, the tetrachiral configuration is particularly attractive for engineering use, because its rotation-dominated node–ligament deformation gives a negative …
Published in Journal of Polymer & Composites · Vol. 14, Issue 5, 2026 · pp. 58–70 Read article
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Thermal Analysis of Isotropic and Orthotropic Plate By Trignometric Shear Deformation Theory
Abstract: In the present study, a sinusoidal shear and normal deformation theory taking into account effects of transverse shear as well as transverse normal is used to develop the analytical solution for the bidirectional bending analysis of isotropic, transversely isotropic, laminated composite and sandwich rectangular plates. Governing equations and boundary conditions of the theory are obtained using the principle of virtual work. The Navier solution for simply supported laminated composite plates …
Published in Journal of Geotechnical Engineering · Vol. 8, Issue 2, 2021 · pp. 38–59 Read article
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Efficient PCB Fault Detection System using Deep Learning and Image Processing
Abstract: Printed Circuit Boards (PCBs) are essential parts that support the operation of electronic equipment in a variety of sectors. Nevertheless, difficulties that manufacturers regularly face during the PCB manufacturing process lead to defective devices. However, current inspection processes occur after etching, wasting a lot of material and rendering defective PCBs unusable. This study discusses relevant practical difficulties and offers a method for identifying errors in real PCB images using Matlab …
Published in Journal of Nuclear Engineering & Technology · Vol. 13, Issue 3, 2023 · pp. 1–5 Read article
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A Model Approach of Controlling Coning in Oil Rim Reservoirs
Abstract: Water and gas coning in oil rim reservoirs poses serious hindrance to optimizing oil production in the thin oil beds as unwanted fluids tend to replace oil in the production stream. This invariably limits the ultimate oil recovery. In this study, semi-analytical models of estimating critical rate and optimum horizontal well placement were developed to control coning tendencies in oil rim reservoirs. The models were developed through semi-analytical analysis of …
Published in Journal of Petroleum Engineering & Technology · Vol. 2, Issue 1-3, 2012 · pp. 1–10 Read article
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Effect of Dry Carbon Fibers on the Mechanical Properties of G801 Carbon Fiber Reinforced Composites
Abstract: The field of fiber-reinforced composite materials has progressed quickly in the last two decades, mainly due to the extreme lightness and superior properties of it, when compared to conventional materials. These materials are progressively being utilized as a part of aviation, automotive, electronics, sporting goods, and numerous other modern applications. In this work, we have fabricated carbon fiber reinforced composites by lay-up procedure in different sequences. This work aims to …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 4, Issue 2, 2017 · pp. 1–7 Read article
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Simple Gain Model of Group III-V Semiconductor-based Laser Diode
Abstract: In these days, a layer of low bandgap material is sandwiched between two high bandgap layers.Most commonly-used pair of materials is gallium arsenide (GaAs) with aluminium galliumarsenide (AlGaAs) and Indium Phosphide (InP) with Indium gallium arsenide phosphide(InGaAsP) laser. A heterostructure is the junctions between different bandgap materials. Here,two such junctions are present, hence it is called the name "double heterostructure laser" orDH laser. The kind of laser diode may be …
Published in Recent Trends in Electronics Communication Systems · Vol. 7, Issue 3, 2020 · pp. 9–27 Read article
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A Study on Orthorexia Nervosa: When Healthy Eating Becomes an Obsession
Abstract: Orthorexia nervosa (ON) is a new eating disorder described as an obsession for healthy eating. Recently individuals exhibiting different ‘‘highly sensitive eating behavior disorders” are increasing with the increased consciousness about various diseases globally and the role of diet in their prevention. Accordingly, the purpose of this study was to identify individuals with obsessive eating behavior. Sample included 30 nutrition professionals and 30 non-nutrition professionals (n=60; all graduates and above). …
Published in Research and Reviews: A Journal of Health Professions · Vol. 4, Issue 3, 2014 · pp. 1–4 Read article
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Effect of Chronic Inescapable Footshock and Antidepressant Treatment on BDNF/TrkB Levels in Rat Hippocampus
Abstract: Depression is a major health problem globally. Chronic stress arising out of life style or social factors may trigger depression, the molecular basis of which has been attributed to alterations of brain chemicals like neurotrophins. Among these neurotrophins, brain-derived neurotrophic factor regulates many physiological functions in the brain, alteration of which has been well associated with the pathogenesis of depression. Stress-induced helplessness in rodents constitutes a well-defined model to investigate …
Published in Research and Reviews: A Journal of Neuroscience · Vol. 2, Issue 2, 2012 · pp. 12–21 Read article