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871 articles for “Calculations”
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Performance analysis of ETL/Absorber and Absorber/HTL Interface Layer on Perovskite (CH3NH3PbX3, X: I) Solar Cell
Abstract: The effectiveness of perovskite solar cells employing perovskite materials such as methyl ammonium lead tri halide (MAPbX3, MA=CH3NH3, X:I) has been investigated in this research with the use of the SCAPS tool. The electrical properties of the MAPbX3 material utilized for the active layer have been calculated through numerical simulation and modelling for various parameters, including open-circuit voltage (Voc), power conversion efficiency (PCE), fill factor (FF), and short-circuit current density …
Published in Journal of Microelectronics and Solid State Devices · Vol. 10, Issue 1, 2023 · pp. 8–14 Read article
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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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Moshinsky Transformation and Slater Integral Methods as Evaluation Tools for Overlap Probability in Six-Quark Bag
Abstract: A comparative study of Moshinsky transformation and Slater integral methods in successful calculation of Binding Energy of mirror hypernuclei pairs ( 6 He ~6 Li , 14 14 C ~ N ), using six-quark probability of nucleon-nucleon ( ( ) 6 0 q NN P r ) and nucleon-Λ hyperon ( ( ) 6 0 q N P r ). The contribution of direct and …
Published in Journal of Nuclear Engineering & Technology · Vol. 8, Issue 3, 2018 · pp. 1–11 Read article
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Assessment of Natural Radiation Exposure from Sand and Sediment Samples Obtained from Kuakata Beach Area in Bangladesh
Abstract: In Bangladesh, Kuakata Beach situated in Patuakhali district contains some in sand and sediment. In this paper the activity concentration and absorb dose of sand and sediment collected sand and sediment collected from Kuakuta Beach were measured. The activity concentrations of radionuclides and their respective annual effective dose rates, produced by 226Ra, 232Th, 40 K were measured using a High Purity Germanium (HPGe) detector of relative efficiency 40%. The measured …
Published in Journal of Nuclear Engineering & Technology · Vol. 8, Issue 3, 2018 · pp. 18–26 Read article
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Criticality Risk Assessment during Transportation and Storage of MTR Spent Fuel Elements
Abstract: Abstract This study aims to evaluate the criticality condition during transporting the spent fuel elements from the temporary storage to the permanent storage by using a Latin American cask. The cask was developed to transport the material testing reactor (MTR) fuel element type. MCNP5 code was used to calculate the criticality, expressed in terms of the neutron multiplication factor (k-effective), for normal and accidental situations using 21 fresh fuel elements. …
Published in Journal of Nuclear Engineering & Technology · Vol. 9, Issue 1, 2019 · pp. 1–6 Read article
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Effect of Fusion Plasmas in Complete and Incomplete Fusion
Abstract: Abstract In an attempt to study the effect of thermal fusion plasma in complete and incomplete fusion, the collisional cross sections of several medium and/or heavy were measured with increasing plasma density, temperature and pressure and analysed with TALYS-1.4 code. The measured plasma density, temperature and pressure profiles are analysed with numerical model transport code PTRANSP, ONETWO and ASTRA and the corresponding data were used for calculations. The excitation functions …
Published in Journal of Nuclear Engineering & Technology · Vol. 9, Issue 1, 2019 · pp. 7–16 Read article
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Alpha Decay Half Lives of Heavy Elements
Abstract: AbstractAlpha decay is an atomic decay process where changes to another component by shooting out a molecule made out of two protons and two neutrons. This shot out molecule is known as an alpha molecule and is just a helium core. Alpha particles have a moderately huge mass and a positive charge. These huge mass methods alpha particles cannot go exceptionally far through the air, or get profound into a …
Published in Journal of Nuclear Engineering & Technology · Vol. 9, Issue 2, 2019 · pp. 1–7 Read article
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Case Study on Determination of Thermal Efficiency of Industrial Furnace by Direct & Indirect Method
Abstract: Abstract:Since few years there has been great demand for energy Audit as energy as become one of the most important factor for any industry. There has been constant efforts to minimize energy losses and energy audits are proper way to manage energy consumption of any industry. Energy Audit plays an important role as energy wastage is major issue in industries (energy spending accounts for ~ 10% of the average manufacturer's …
Published in Journal of Nuclear Engineering & Technology · Vol. 10, Issue 2, 2020 · pp. 19–25 Read article
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Performance Evaluation Studies of Purolite NRW-5010 and Indion AGR Anion Exchange Resins by Radioactive Tracer Technique
Abstract: AbstractThe characterization of organic base anion exchange resins Purolite NRW-5010 and Indion AGR was made by application of short lived radio tracer isotopes 131I and 82Br. The characterization of the two resins was based on their performance during iodide and bromide ion-isotopic reaction taking place between the resin surface and the external labeled ionic solution. The exchange reactions were carried out by using the ionic solution in the concentration range …
Published in Journal of Nuclear Engineering & Technology · Vol. 4, Issue 1, 2014 Read article
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Human Comfort inside the Vehicle by Using Internal Cooling Materials
Abstract: Human comfort is the most important aspect of the vehicle. Due to harsh sunlight and many other climatic conditions the human comfort level is breached. This breaching in the comfort level results in the abnormal physical conditions of the human. The occupants may feel uncomfortable which may cause unpleasant ride and journey. The most common problem encountered under this condition is the overheating of the vehicle -cabin due to parking …
Published in Journal of Nuclear Engineering & Technology · Vol. 10, Issue 3, 2020 · pp. 52–58 Read article
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Decrement of Spin-orbit Splitting Near Calcium Region
Abstract: Explanation of the observed decrement of splitting of spin-orbit partners near shell closure, has been sought through an introduction of tensor interaction in a mean field type of calculation. The strength of the tensor interaction used in the Skyrme Hartree Fock theory has been optimized by the reproduction of the experimentally determined splitting of 1d, 1f and 2d shell model states (both neutron and proton) of the isotopes of Calcium …
Published in Journal of Nuclear Engineering & Technology · Vol. 13, Issue 1, 2023 · pp. 11–22 Read article
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Investigation of Inter Delamination Properties and Morphological Analysis of Natural Fiber-Reinforced Polymer Matrix Composites
Abstract: AbstractNatural fibers are strong, light weight, renewable, cheap, completely or partially recyclable, and biodegradable. The various types of natural fibers are flax, cotton, jute, sisal, kenaf pineapple, bamboo, banana, wood, etc. In this work, sisal fibers and banana fibers have been employed as the main reinforcing materials with epoxy resin as the matrix in order to increase the effectiveness of natural fiber-reinforced polymer matrix composites. In this study, it is …
Published in Journal of Polymer & Composites · Vol. 3, Issue 3, 2015 · pp. 1–7 Read article
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Study of Mechanical and Thermal Properties of Unsaturated Polyester/CuO Nanocomposites
Abstract: AbstractThe CuO nano particles were synthesized from copper sulfate pentahydrate aqueous solution under the low hydrothermal condition at 80°C. The size of the CuO nanoparticles was calculated from TEM. FTIR spectra confirmed the formation of the CuO nanoparticles. Nanocomposites of unsaturated polyester resin with different loading of nano CuO fillers were prepared by casting method. The mechanical properties of the composites such as tensile behavior, flexural behavior, impact strength and …
Published in Journal of Polymer & Composites · Vol. 3, Issue 3, 2015 · pp. 35–42 Read article
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Potential of Midrib of Cocos nucifera Leaf for Reinforcement of Plastics
Abstract: AbstractCoconut palm (Cocos nucifera) is an abundant crop of tropical areas. In the present work, mechanical properties of midrib of coconut palm leaf as tensile strength, tensile modulus, flexural strength, flexural modulus impact strength and elongation at break is experimentally determined and compared with other fibers. Single-fiber pull-out test is conducted to determine critical embedded length and interfacial adhesion between fiber and matrix for reinforcement in polyester resin. Tensile test …
Published in Journal of Polymer & Composites · Vol. 3, Issue 1, 2015 · pp. 25–32 Read article
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Infrared Spectroscopic Studies on Multiwalled Carbon Nanotubes Reinforced Acrylonitrile Butadiene Styrene Composites
Abstract: AbstractFourier Transformed Infrared (FT-IR) Spectroscopic analysis is an effective technique to captures the response of the molecular motions such as stretching, bending and torsional vibrations of materials. In this study, FTIR analysis has been done on two different grades of multiwalled carbon nanotubes (MWCNT) C100 and NC7000. NC7000 grade MWCNT has a higher degree of crystalinity and shows 60% higher absorbance in the wavelength range of 600-3600 cm-1. These two …
Published in Journal of Polymer & Composites · Vol. 2, Issue 3, 2023 · pp. 15–22 Read article
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Mechanical and Tribological Characterization of CaCO3 and CaSO4 Filled CSM-E-Glass Fiber Reinforced Vinyl Ester Composites
Abstract: AbstractIn this paper, mechanical and tribological behavior of the composites under dry sliding wear of vinyl ester matrix reinforced with chopped strand mat (CSM)-E-glass fiber and fillers CaSO4 and CaCO3 sliding against smooth stainless steel counterface (Ra = 0.07 µm) using Taguchi experimental design has been presented. The effects of sliding velocity (1.57, 2.62 and 3.67 m/s), normal load (20, 40 and 60 N), filler content (0, 10 and 20 …
Published in Journal of Polymer & Composites · Vol. 1, Issue 3, 2013 · pp. 13–31 Read article
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Cubic B-splines for Isogeometric Analysis of Laminated Composite Plates Subjected to Hygroscopic Loading Using Classical Laminated Plate Theory
Abstract: Composite laminates are inevitably used in several engineering structures due to their high strength and stiffness to weight ratio. The laminates are subjected to change in moisture content and the flexural behavior leads to change in the strength. Presence of moisutre may induce residual stresses and strains. Isogeometric analysis is a well-proven method to perform analysis of laminated composite plates. The main focus of this study is to apply isogeometric …
Published in Journal of Polymer & Composites · Vol. 9, Issue 3, 2021 · pp. 19–32 Read article
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Dispersion Analysis of Polypyrrole and ZnO Nanocomposite Thin Film using SPR Techniques
Abstract: The dispersion analysis of any material is crucial for studying its structure and composition. The interaction of the structure of the material with electromagnetic energy is also determined by studying its dielectric or optical properties. For studying dielectric properties, optical approaches are favored over electrical techniques, and Surface Plasmon Resonance (SPR) is the most suited of all techniques. It is used as a result to investigate the optical and dielectric …
Published in Journal of Polymer & Composites · Vol. 10, Issue 2, 2022 · pp. 79–85 Read article
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Influence of B2O3 and Li2O on Physical, Thermal and Spectroscopic properties of Bi2O3-B2O3-CdO-Li2O glass system
Abstract: ABSTRACT Bismuth Borate based glasses with compositions BiBCL: 40Bi2O3-(40-X) B2O3-20CdO-XLi2O where x=5,10,15,20,25 mol% were prepared by conventional melt quenching technique. X-ray diffraction (XRD), differential thermal analysis (DTA), UV-VIS absorption spectroscopy, Fourier transform-infrared (FTIR), and Raman spectroscopies were used to analyse the synthesized samples. Through XRD and SEM studies, the synthesized glasses amorphous nature was confirmed. To evaluate the physical and structural characteristics of the glasses, calculations were made for the …
Published in Journal of Polymer & Composites · Vol. 11, Issue 1, 2023 · pp. 51–62 Read article
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Photoluminescent Reduced Graphene Oxide (rGO)–ZnO Nanocomposites Prepared Through one-pot Solvothermal Route
Abstract: In the present article, we report solvothermal synthesis of reduced graphene oxide (rGO)–ZnO nanocomposites through in situ exfoliations of graphite oxide with two different zinc-containing precursors viz. Zinc acetate dihydrate and zinc(II) acetylacetonate in water-diethylene glycol medium with hexamethylenetetramine as a reducing agent. The obtained rGO–ZnO nanocomposites were characterized by X-ray diffraction, and the ZnO lattice parameters were calculated. Raman spectroscopy indicated the presence of characteristic bands of graphene and …
Published in Journal of Polymer & Composites · Vol. 11, Issue 2, 2023 · pp. 70–80 Read article