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72 articles for “varying thickness”
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Studies on the Electrical Characteristics of GaN based HEMTs at the AlGaN Nano-Layer Thickness of 9 nm
Abstract: In this work, we have designed total 25 individual structures of AlGaN/GaN high electron mobility transistors (HEMTs). Variations in drain current are studied with the change in drain voltage. Also, variations in drain current are studied with the change in gate voltage. Further, variations in drain current are studied with the change in aluminium mole fraction. The amount of drain current is higher in HEMT of lower gate length. This …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 6, Issue 1, 2020 · pp. 14–28 Read article
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Thermo-elastic flexural analysis of cross-ply laminated beams
Abstract: The present paper is concerned with the thermal analysis of symmetric and antisymmetric cross ply laminated beams subjected to temperature distribution across the thickness of laminated beam. A higher order shear deformation theory is used. The displacement field in terms of thickness coordinate is expanded up to cubic term to have a quadratic variation of the transverse shear strains and transverse shear stresses. This avoids the need of shear correction …
Published in International Journal of Structural Engineering and Analysis · Vol. 6, Issue 1, 2020 · pp. 62–73 Read article
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Bituminous of Plastic Road
Abstract: Transfer of waste materials, such as plastic sacks, has become a significant issue, and plastic wastes are singed for transport, causing severe environmental impact. The use of waste plastics in bituminous mixes has shown that they improve the blend's characteristics while also reducing transfer difficulties. Plastic garbage that has been separated and cleaned is sliced so that it can pass through a sieve with a size of 2 mm - …
Published in International Journal of Composite Materials and Matrices · Vol. 7, Issue 2, 2021 · pp. 22–45 Read article
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Thermally Induced Stresses in Cross-Ply Laminated Plates Using Four Variable Theory
Abstract: A thermal analysis of simply supported isotropic, orthotropic, two layer antisymmetric and three layer symmetric composite laminated plates is presented. A four variable trigonometric shear deformation theory is used. This theory has only four unknown variables as compared to other higher order theories with five or more than five unknown variables. This is a displacement based equivalent single layer theory. The in-plane displacement field of this theory consists of trigonometric …
Published in International Journal of Structural Engineering and Analysis · Vol. 6, Issue 2, 2020 · pp. 35–54 Read article
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Fabrication, Microstructure and Mechanical Behavior of Aluminum Alloy (LM-13) Reinforced with Nano-ZrO2 Particulate Chilled Nano-Metal Matrix Composites (CNMMCs)
Abstract: In the present research, aluminum alloy (LM13) Metal Matrix Composite (MMC) is prepared by stir casting technique and is reinforced with ZrO2 particulates in the weight percent ranging from 3 wt.% to 12 wt.% in the steps of 3 wt.%. The reinforcement i.e., ZrO2 particle size added varies between 100–200 nm. The resulting CNMMCs are solidified under the influence of copper chill of 25 mm thickness to study the effect …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 6, Issue 2, 2020 · pp. 17–30 Read article
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Tribological Behavior of Chilled Aluminum Alloy (LM-13) Reinforced with Titanium Carbide (TiC) Metal Matrix Composites for Automobile Applications.
Abstract: In the present research, aluminum alloy (LM13) Metal Matrix Composite (MMC) is prepared by stir casting technique and is reinforced with titanium carbide (TiC) particulates in the weight percent ranging from 3 wt.% to 15 wt.% in the steps of 3 wt.%. The dispersoid i.e. TiC particle size added varies between 100–200 µm. The resulting MMCs were solidified under the influence of copper chill of 25 mm thickness to study …
Published in International Journal of Composite and Constituent Materials · Vol. 6, Issue 2, 2020 · pp. 24–46 Read article
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Deep Sea Rock Drill Fluid Improved Performance by Addition of Nanomaterials
Abstract: This review contains descriptive issues about improvement in bentonite-based drill fluid after nano matter addition applicable to oil and gas well. This is to improve high-temperature access as well as viscous-dynamic performances under low fluid loss. Oil-based drill fluid seemed to be more favorable as restrict seal by mud cake containing shale whereas water-based drill fluid is economical and ecofriendly. Shale of mine is often searched as the sacred source …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 7, Issue 1, 2021 · pp. 29–38 Read article
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Purification of Pectinase Derived from Peels of Mango, Papaya, and Banana using Aspergillus Niger
Abstract: Its name comes from the Greek word pectin, which means "congealed and curdled." Heneri Bracannot was the first to isolate and describe it in 1825. Pectin, a multifunctional constituent of cell wall is the high value functional food ingredient widely used as gelling agent and as stabilizer. Fruits contain pectin, a fibre. It's frequently used in food and cooking as a thickening. It's used to create medicine on occasion. Pectin …
Published in International Journal of Chemical Separation Technology · Vol. 7, Issue 2, 2021 · pp. 39–48 Read article
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Field Assessment of Runway Pavement Surface Texture for Baghdad International Airport
Abstract: One of the major serviceability issues which reflects the suitability of the airport runway for serving international flights is the surface texture of concrete pavement. The concrete surface of the runway 33R-15L of Baghdad international airport is badly covered with large spots of aeroplanes tyre rubber. The international flight companies had claimed that the rough surface of the runway concrete pavement caused damage and deterioration to their aeroplane’s tyres. The …
Published in International Journal of Transportation Engineering and Traffic System · Vol. 5, Issue 2, 2019 · pp. 6–21 Read article
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Bacterial Cellulose Produced by Komagataeibacter saccharivorans BC-C1under different culture conditions: A comparative analysis
Abstract: Bacterial cellulose is a significant biopolymer with various applications because of its remarkable properties, like improved crystallinity, better mechanical strength, a high water- holding capacity, and biocompatibility. The current study aims to investigate how static and agitation culture conditions influence the bacterial cellulose production by Komagataeibacter saccharivorans BC-C1. Under static culturing condition, thick cellulose sheets with a higher yield of 0.94 ± 0.19 g/L were obtained, whereas in agitation culture …
Published in International Journal of Industrial Biotechnology and Biomaterials · Vol. 12, Issue 2, 2026 Read article
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Sliding wear behavior of plasma sprayed NiCrAlY-WC based composite coatings on AA5083 alloy
Abstract: WC based coatings was deposited by thermal spray process have been extensively used in industrial application to counter abrasive type of wear. In this study, for the first time NiCrAlY-WC based composite coatings were deposited on AA5083 substrate by plasma sprayed coating technique. The composite coatings were characterized by optical microscopy (OM), scanning electron microscopy (SEM) and microhardness. Sliding wear behavior of coated and uncoated samples was carried out on …
Published in International Journal of Composite Materials and Matrices · Vol. 4, Issue 2, 2018 · pp. 21–26 Read article
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Optimisation of Ratio of Center Distance of Adjacent Hole to Diameter of Pre-stressed Holes by FEA
Abstract: Residual compressive stress zone around a fastener hole is introduced by a process called pre-stressing. This is being done to reduce adverse effect of cyclic tensile stress and to restrict the fatigue crack growth due to material flaws or imperfect surfaces. The objective of this investigation is to optimize the inter-hole distance between adjacent cold expanded holes on a plate restricting the deformation of material between holes to the elastic …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 6, Issue 2, 2020 · pp. 40–48 Read article
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A Broad Review on the Impact of spring back/spring go During Bending Operation
Abstract: AbstractSpring back is the most important element impacting the perfection of sheet metal components because of the spring back properties of sheet metal, designing forming dies is particularly complex. This is a critical issue since spring back is a common forming issue with metal forming process using high-strength steel sheets. Once a stress is released, the material's elastic recovery forces the metal to spring back into shape. There are several …
Published in International Journal of Manufacturing and Materials Processing · Vol. 8, Issue 1, 2022 · pp. 14–19 Read article
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Electrical and Optical Study of MEH-PPV-Based OLED
Abstract: The electrical and optical characteristics of MEH-PPV (Poly [2-methoxy-5-(2’-ethyl-hexoxy)-1, 4 phenylenevinylene]) as active layer has been investigated in the organic light emitting diode (OLED).The proposed structure is a monolayer device; consisting MEH-PPV sandwiched between high work function anode (ITO) and a relatively low work function cathode (Ca).The proposed structure was simulated by device simulation software ATLAS from Silvaco Inc. Simulation includes various organic models like Poole-Frenkel mobility model and Langevin …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 3, Issue 2, 2017 · pp. 1–9 Read article
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Free Vibration Analysis of Laminated Composite Plate with Various Boundary Condition Using FEM
Abstract: The vibration analysis of laminated composite plates is analyzed using finite element method. A suitable finite element model is proposed and developed based on first order shear deformation theory using ANSYS parametric design language (APDL) code. The model has been developed using an appropriate eight node isoparametric element (SHELL281) from the ANSYS element library. In this paper Numerical results have been computed for the effect of material properties, thickness ratio …
Published in International Journal of Composite Materials and Matrices · Vol. 2, Issue 1, 2016 · pp. 1–7 Read article
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Design and Implementation of Liquid Crystal Devices and Study its Nano Applications
Abstract: Photoalignment has clear benefits in correlation with the ordinarily "scouring" treatment of the substrates of fluid precious stone presentation (LCD) cells. The fluid gem photoalignment is nano- innovation, as the thickness of the arrangement layer is around 2–15 nm. The use of the photograph arrangement and photograph designing nano innovation for the new age of photonic and show gadgets will be inspected. We discussed about LC polarization regulators, rotators, and …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 8, Issue 1, 2022 · pp. 31–39 Read article
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Thermal Analysis of Earth Heat Exchanger Using Air as a Medium
Abstract: Thermal energy is the main concept of an earth air tube heat exchanger (EATHE), which uses the thermal energy of the ground for cooling and heating of the fluid medium. Here, air is used as cooling medium. The air cools in summer and gets heated in winter due to the temperature difference between the air and underground surface. However, for the study of the surface heat convection study of model …
Published in International Journal of Computer Aided Manufacturing · Vol. 4, Issue 1, 2018 · pp. 1–17 Read article
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Software Numerical Simulation on Earth Tube Heat Exchanger Where Air as A Flow Medium
Abstract: Renewable energy is free in nature and it must be brought into application. Due to use of air conditioning and its refrigerants global warming is a serious issue. Renewable energy is the main concept of an earth tube heat exchanger, which uses the thermal energy of the ground for cooling and heating of the fluid medium. Here, air is used as fluent working medium. The air cools in summer and …
Published in International Journal of Computer Aided Manufacturing · Vol. 6, Issue 1, 2020 · pp. 19–45 Read article
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CFD Simulation on Ground Tube Heat Exchanger using Copper and Aluminum as Tube Material
Abstract: Renewable energy is free in nature and it must be brought into application. Due to use of air conditioning and its refrigerants global warming is a serious issue. Renewable energy is the main concept of an earth tube heat exchanger, which uses the thermal energy of the ground for cooling and heating of the fluid medium. Here, air is used as fluent working medium. The air cools in summer and …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 6, Issue 2, 2020 · pp. 49–74 Read article
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Computerized Fluent Simulation on Earth Tube Heat Exchanger Where Air as a Flow Medium
Abstract: In the present era renewable source of energy is free and abundant in nature and it must be brought into application. Due to excessive use of air conditioning systems, the chemicals cause global warming is a serious issue. The renewable energy is the main aim and objective of an earth tube heat exchanger, which uses the thermal energy of the ground for cooling and heating of the fluent. Here, Air …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 6, Issue 2, 2020 · pp. 49–68 Read article