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426 articles for “deposit”
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3D Printable Polymer Nanocomposites: Challenges, Availability and Future
Abstract: Three-dimensional (3D) printing technology is evolving rapidly, with various materials used during the process. One of the most recent advancements in this area is the use of polymer nanocomposites for fused deposition modelling (FDM) printing. Polymer nanocomposites have a great potential due to their unique properties such as high strength, stiffness, excellent thermal and electrical properties as well as superior surface finish. But there are also some challenges associated with …
Published in Journal of Polymer & Composites · Vol. 11, Issue 3, 2023 · pp. 38–55 Read article
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THE THICKNESS EFFECT ON TiO 2 THIN FILMS FABRICATED BY USING SOL- GEL DIP COATING METHOD
Abstract: Titanium dioxide films were prepared by sol-gel dip-coating technique onto glass substrates at room temperature. The study focuses on the structural pattern of TiO 2 films which were dominated by the parameters such as the film thickness, pH, annealing temperature and number of dipping layers. At first the dipping speed is optimized with the refractive index of the film along with the number of dipping layers. Then the film deposited …
Published in Journal of Polymer & Composites · Vol. 12, Issue 1, 2024 · pp. 1–10 Read article
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Influence of SiO2 Nanoparticles on the Structural, Morphological, and Optical Properties of CsPbBr3 Quantum Dots
Abstract: This work mainly investigates the structural and optical property differences between CsPbBr3/SiO2 quantum dots (QDs) and CsPbBr3 QDs thin films deposited on fluorine-doped tin oxide (FTO) glass. X-ray diffraction of CsPbBr3/SiO2 QD thin film showed a polycrystalline cubic nanostructure with (200) as a dominant phase and did not show any peak of SiO2. Scanning and transmission electron microscopy images show that it is very small spherical or semi-spherical particles with …
Published in Journal of Polymer & Composites · Vol. 11, Issue 2, 2023 · pp. 62–69 Read article
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Investigation into mechanical Characterstics of laminated composite materials (PMMA and NYLON) using FDM
Abstract: The widespread embrace of 3D printing technology stems from its capacity to minimize material waste, offer versatile design options, and enable the production of intricate structures. 3D printed polymer composites reinforced with fibers (carbon, glass, nylon etc.) have been extensively used in automobile, marine, aerospace and energetic applications due to their excellent properties. Nylon fiber is light weight, resistance to damage from oil and chemicals, tough, strong and has higher …
Published in Journal of Polymer & Composites · Vol. 12, Issue 2, 2024 · pp. 108–121 Read article
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High Oil Recovery using Traditional Water-flooding under Compliance of the Planned Development Mode
Abstract: The dynamics and performance of major oil deposits in late (final) stage of development of large oil fields are given the current rates of oil recovery. The high oil recoveries are resulted as a consequence of the favorable geological and physical characteristics of the development objects, application of development systems and optimal density well spacing, adequate geological structure, maintain during the process of the development the optimal rates of technological …
Published in Journal of Petroleum Engineering & Technology · Vol. 6, Issue 2, 2016 · pp. 44–49 Read article
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Well Injectivity Management during Geological Carbon Sequestration Activity
Abstract: It is well known that the saline aquifer formations are considered very reliable candidates for carbon sequestration because of their wide availability and they have good storage capacity. Due to high formation salinity, there a big concern about bore formation dry-out resulting from the salt precipitation in the form of halite (NaCl). The mutual solubility between CO2 and brine is responsible for creating the salt deposits, this processes may take …
Published in Journal of Petroleum Engineering & Technology · Vol. 6, Issue 3, 2016 · pp. 32–43 Read article
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Solutions to Problems Faced in Well Log Analysis in fractured metamorphic Reservoir Systems Due To Multiple Porosities and Lithology’s
Abstract: Metamorphic rocks are the most bottomless non-terrigenous sedimentary rock and are made essentially out of transformative minerals. Most metamorphic rocks shape from calcareous stores that collect in marine conditions running from salt marshes to reefs to profound sea bowls. Unmistakable and one of a kind parts of transformative rocks are their dominatingly intrabasinal starting point, their essential reliance on natural exercises for their constituents and their powerlessness to change by …
Published in Journal of Petroleum Engineering & Technology · Vol. 9, Issue 1, 2019 · pp. 36–42 Read article
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An Overview of Poroperm Relationship in the Recognition of Heterogeneity in Petroleum Reservoirs
Abstract: Reservoir heterogeneity is comprehended on different scales based on vertical and lateral variations in the hydrocarbon bearing sedimentary sequences. The two depositional systems, Sand-shale and carbonate with complex patterns based on properties of rocks help in deciding quality of rocks, the most important being the porosity permeability relationship. The intricate relationship of these two parameters if discussed in connection with sampling depth gives better understanding of variations in vertical direction …
Published in Journal of Petroleum Engineering & Technology · Vol. 11, Issue 1, 2021 · pp. 17–42 Read article
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Additive Manufacturing in Aerospace and Defense Industries: A Review
Abstract: Additive Manufacturing (AM) is a promising fabrication technique that can offer significant benefits to aerospace industries and Defense Support Service providers. Because of its potential to delocalize production near the point of use and its transformative potential, the technology is gaining popularity. In fact AM has a great potential to revolutionise the Global manufacturing and distribution system by offering low cost and highly customized parts. AM encompasses a broad variety …
Published in Journal of Production Research & Management · Vol. 11, Issue 1, 2021 · pp. 16–36 Read article
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Fabrication and Study of Multiwall Carbon Nanotube based capacitor electrodes for Energy Storage Applications
Abstract: Current supercapacitors gift numerous wonderful boundaries that critically inhibit the performance,power, and electric capacitance of strength garage devices. Supercapacitors gift an thrilling prospect that has infinite packages in renewable strength garage and cutting-edge day digital devices. In current years thethrilling improvement of carbon nanotubes (CNTs) has offered a bonus in electrode improvement. CNTs, but useful for his or her improved electrode floor place, have extreme boundaries concerning conductivity and electrode …
Published in Journal of Semiconductor Devices and Circuits · Vol. 8, Issue 3, 2021 · pp. 56–60 Read article
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Current status of reinforced thermal spray coatings to increase corrosion resistance of boiler tube steels
Abstract: AbstractThermal barrier coatings are one of the best techniques to protect the metal surface from erosion corrosion attach. Aluminium and nickel based alloys are extensively used as thermal barrier coated materials with various techniques such as HVOF, APS etc. The techniques for applying the coatings gain their importance in thermal spray which results to get a layer deposited without affecting the properties of substrate material. Thermal spray coatings have been …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 5, Issue 3, 2018 · pp. 1–7 Read article
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Metal Surface Coating Through Welding Processes
Abstract: The adversity of service conditions limits the service life of components. The replacement cost of the components is extremely high. Surfacing technique offers benefits in reducing materials costs and, in salvage applications, enables an expensive or difficult-to-replace part to be reclaimed and restored to operation with minimum of downtime. Industries involved in surfacing operations use various fusion welding especially arc welding processes. These operations demand high deposition rates but at …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 2, Issue 3, 2015 · pp. 23–27 Read article
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Mechanical Properties of Acrylonitrile-Butadiene Rubber Reinforced by Cement Waste
Abstract: The basic idea of this paper is to prepare and study the composite rubber material for the manufacturing of an important part in the grain transportation systems in silos of general company for grain trade namely rablat, where it was the experience of this rablat manufactured in the new silo of Hilla/Babylon province for a period of eight months in winches and vector chain where fully proven. In this paper, …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 2, Issue 2, 2015 · pp. 13–16 Read article
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Effect of Annealling on Optical Band Gap of Fe2O3 Thin Films on Amorphos Transparent Glass Substrate by Spray Pyrolysis Method
Abstract: The Fe 2 O 3 thin film has widely used photo-electrochemical cells. In this paper, the optical properties like band gap of thin films is depend on annealed temperature at 100 o C and 200 o C was discussed. The optical property of Fe 2 O 3 are studied by UV- Vis spectroscopy .The optical band gap decreased after increasing annealing temperature. The refractive index of Fe 2 O 3 …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 10, Issue 2, 2023 · pp. 25–29 Read article
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Comparative Analysis of MOSFET, CNTFET and NWFET for High Performance VLSI Circuit Design: A Review
Abstract: Nanowires are inimitable materials for considering phenomenon in nanoscale regime. Nanowires development exhibits ample of applications by controlling their, structure, composition as well as their electrical properties. This paper review diverse types of nanowires, nanowire field-effect transistor (NWFET) structure and their comparison with novel devices. Firstly, this paper describes different types of nanowires and nanowire heterostructure that shows nanowire heterostructures eliminates various factors that limit the performance of homogeneous nanowire …
Published in Journal of VLSI Design Tools and Technology · Vol. 6, Issue 2, 2016 · pp. 19–32 Read article
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Performance Analysis and study of losses in GaAs Multi Junction Solar cells using Current and Voltage Measurements
Abstract: Cross section coordinated, triple-intersection sunlight based cells with strain repaid quantum spots (QDs) in the GaAs center cell were developed by Metal-Organic Chemical Vapor Deposition (MOCVD). Structures with various quantities of QD layers are contrasted with gauge structures with no QDs. Quantum proficiency and light I-V estimations show an expansion in hamper thickness and debasement of the open circuit voltage for QD sun powered cells. The QDs don't work on …
Published in Journal of VLSI Design Tools and Technology · Vol. 12, Issue 1, 2022 · pp. 1–7 Read article
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Numerical modeling of Nocardia Migration Influenced Transport pressured by Dispersion and velocity in Fine Sand Formation in Wetland Environment
Abstract: AbstractThis paper monitor the behaviour of Nocardia in fine sand deposition, the study express the velocity and dispersion influences on Nocardia migration in wet land environment. The transport process at different litho structure observed variation on their concentration in the study area, this condition developed fluctuation on the transport system within the predominant strata, the concentration from three to thirty metres developed fluctuation base on the influences from dispersion and …
Published in Journal of Water Resource Engineering and Management · Vol. 5, Issue 1, 2018 · pp. 6–13 Read article
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MODELING AND SIMULATION OF LEGIONELLA TRANSPORT INFLUENCED BY HETEROGENEOUS VELOCITY IN STREAM
Abstract: The purpose of this study is to monitor the behaviour of legionella contaminant in stream, the rate of concentration at different monitoring station developed various rate of effect on the water bodies, heterogeneous velocity of flow in the stream was observed as the major sourced of change in concentration at different stations, the expression from the system developed the derived solution to evaluated the behaviour of the contaminant at different …
Published in Journal of Water Resource Engineering and Management · Vol. 6, Issue 2, 2019 · pp. 29–35 Read article
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VELOCITYAND OXYGEN DEFICITT INFLUENCE ON THE TRANSPORT OF FRANCISELA IN ELEME CREEK
Abstract: The purpose of this paper is to monitor velocity and oxygen deficit effect on the transport of francisela in Eleme creek, a steady state advection-diffusion-reaction on the transport process were observed in the system, in other to developed the various rate of concentration, constant oxygen deficit and velocity were also monitored in the study, the system express high to low concentration in all the locations that were examined on the …
Published in Journal of Water Resource Engineering and Management · Vol. 6, Issue 2, 2019 · pp. 47–52 Read article
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Groundwater Darcy Velocity from underground Temperature: A Focus on the City of Turin (NW Italy)
Abstract: We report on an application of a methodology for inferring water transfer in a shallow aquifer by using analytical models of interpretation of heat transport by advection and conduction in permeable horizons. In this research, we highlight as the statistical interpretation of thermal data is a tool to obtain a quantitative estimation of the horizontal component of the Darcy velocity in a shallow aquifer. This study is based on the …
Published in Journal of Water Resource Engineering and Management · Vol. 8, Issue 3, 2021 · pp. 19–29 Read article