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1973 articles for “4” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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Smart Irrigation Using Solar Power
Abstract: AbstractIn this paper we basically focus on efficient automatic irrigation system to save water as irrigation is essential and basic requirement in agriculture. Agriculture in India consider for an essential part of GDP almost (16 percent) and employment almost (49 percent) and Agriculture demands about 70 to 80 percent of fresh water resources. Farmers in India generally use drip or sprinkler system, which typically waste water and can often drown …
Published in Journal of Microelectronics and Solid State Devices · Vol. 7, Issue 1, 2020 · pp. 1–4 Read article
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Six Quark Cluster Formation Effects on the Magnetic Moments of Mirror Nuclei with Closed Core+One Nucleon
Abstract: AbstractThe magnetic moments of mirror nuclei with closed core+one nucleon with A=13, 17, 29, 33, 41 (13C6~14N7, 17O8~17F9, 29Si14~29P15, 33S16~33Cl17, 41Ca20~41Sc21) have been estimated in the framework of hybrid quark model. The correction to the magnetic moment due to the six-quark cluster formation effects as estimated in the present work are compared with various other corrections. It is observed that the quark cluster formation effects make a sizable contribution to …
Published in Journal of Nuclear Engineering & Technology · Vol. 7, Issue 2, 2017 · pp. 12–19 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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HVAC Energy Audit of Commercial Building
Abstract: AbstractEnergy Audit in modest terms means survey/Audit accomplished by using professionals to provide methods for improving power efficiency & reducing the wastage of energy units & reducing price also. In commercial & industrial real estate, It is the first step in identifying opportunities to reduce energy expense & carbon footprint. HVAC Energy Audit plays an important role in the commercial Building approx. 50% of energy from the HVAC system. Energy …
Published in Journal of Nuclear Engineering & Technology · Vol. 9, Issue 3, 2019 · pp. 44–48 Read article
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Sizing and Power Estimation Models of an Off-grid Wind Power Supply System in Sokoto, Nigeria
Abstract: AbstractThe exploitation of wind energy for electricity generation could be done by the use of wind turbines. The power output from the wind generator fluctuates due to the variability of wind speed and therefore storage facilities are needed for power supply stability. This research focuses on the wind power potential investigations, sizing of wind power system components and determination of the better wind turbines for residential power supply in Sokoto, …
Published in Journal of Nuclear Engineering & Technology · Vol. 10, Issue 1, 2020 · pp. 1–7 Read article
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Hazards of Power Production-A comparative study
Abstract: Nuclear energy has played a major role in reducing the world's use of oil for electricity generation over the past decades. Current estimates are that uranium resources will last some 400 to 500 years at the present rate of use. This resource base could, furthermore, last some 50 times longer if breeder reactors are introduced. Of the main energy sources, namely coal, hydro and nuclear, nuclear can be even considered …
Published in Journal of Nuclear Engineering & Technology · Vol. 11, Issue 1-2, 2021 · pp. 1–20 Read article
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Homodinuclear and Heterodinuclear Sulphocyanate Bridged Lewis Acid Complexes: An Insight into their Reactivity and Structural Flexibility
Abstract: This precpective reports the synthesis of homodinuclaer and heterodinuclear complexes of the type MM (SCN)4 and MM/ (SCN)4 (M-Co2+ , Ni, M/ , = Cd2+, Hg2+) with N.N' Bis (salicylidene) 1,2- plionylendfamine. A superficial insight has also been reported about their reactivity and structural flexibility. The complexes have been characterized on the basis of elemental analysis, conductivity measurements, magnetic susceptibility measurements, Proton magnetic resonance UV-Visible and midIR spectral studies. The …
Published in Journal of Nuclear Engineering & Technology · Vol. 11, Issue 1-2, 2021 · pp. 42–47 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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Effect of Fillers on Electrical Conductivity of Epoxy Composites
Abstract: AbstractThis paper reports, electrical conductivity studies carried out on RT cure epoxy resin (LY556+HY951) containing three different particulate fillers graphite (Gr) a soft material, silicon carbide (SiC) a hard material and a hybrid graphite and silicon carbide (Gr-SiC). The weight fractions of three different fillers were varied from 10% to 40 wt% in steps of 10%. Increased filler fraction increases the electrical conductivity of epoxy composites for all the three …
Published in Journal of Polymer & Composites · Vol. 6, Issue 3, 2018 · pp. 25–30 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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Mathematical Modeling of the Flexural Strength, Impact Energy and Water Absorption of a Pineapple Fibre-HDPE Composite using RSM Technique
Abstract: AbstractA pineapple fibre reinforced HDPE composite was developed. Response surface methodology (RSM) experimental design was employed using the latest Design Expert 10.0 software and the sample composites were produced by compounding using two-roll mill and subsequent thermoformimg in a hot pressing machine. Mathematical models of the flexural strength, impact energy and water absorption were developed and statistically validated. The model for the flexural strength fitted best with quadratic model while …
Published in Journal of Polymer & Composites · Vol. 5, Issue 2, 2017 · pp. 42–49 Read article
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A Review on Hole Making in Carbon Fiber Reinforced Plastic Laminates
Abstract: AbstractThe existence of fiber reinforced plastic (FRP) laminates in the world since 1940s, and its application is till date growing continuously. The research papers published in this field focused on the manufacturing of laminates to its final uses. The FRPs can be manufactured by various processes, but its assembly of laminated product required a hole. Hole in laminate may be produced by means of conventional or unconventional machining. Major attention …
Published in Journal of Polymer & Composites · Vol. 4, Issue 2, 2016 · pp. 44–51 Read article
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A Review on Natural Fiber and its Hybrid Composite Plastic Materials
Abstract: AbstractNowadays human beings are facing problems related to plastic based pollution. Due to that, engineers are trying to reduce the percentage of plastic as much as possible without affecting the functionality of given plastic based product. Hybrid composite materials having ability to replace some amount of the plastic with natural material are being tried. In this paper, we try to discover the different natural fiber based hybrid composite plastic materials …
Published in Journal of Polymer & Composites · Vol. 4, Issue 1, 2016 · pp. 4–8 Read article
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Synthesis of Poly(Methyl Methacrylate) Latex Using Batch Emulsion Polymerization Reactor: Experimental and Simulation Study
Abstract: AbstractThe rationale for the present study was to develop Poly(methyl methacrylate) polymer latex, using free radical emulsion polymerization mechanism, in which water acted as the continuous aqueous phase, methyl methacrylate monomer as the dispersed phase, potassium persulfate (KPS) as an initiator and sodium dodecyl sulfate (SDS) as the stabilizing agent. PMMA is a versatile thermoplastic resin, used widely because of its excellent performance in optical and medical field. The characterization …
Published in Journal of Polymer & Composites · Vol. 4, Issue 1, 2016 · pp. 37–44 Read article
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Studies on Mechanical, Electrical and Thermal Properties of Compatibilized PLA/ABS Blends Reinforced with Wood Flour
Abstract: AbstractPoly lactic acid (PLA) bio-polymer (60%) was blended with acrylonitrile butadiene styrene (ABS) (40%) and filled with wood flour (0, 10, 20%) using a twin screw compounding extruder and a suitable compatibilizer i.e., glycerol, is also incorporated into that mixture at a percentage of 4% respectively. Test specimens were prepared by using an injection molding machine for mechanical, electrical and thermal properties as per ASTM standards and the properties were …
Published in Journal of Polymer & Composites · Vol. 3, Issue 3, 2015 · pp. 20–26 Read article
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Tung Oil Based Polyurethanes: A Short Review
Abstract: Polyurethane (PU) formulated from natural polyols obtained from Tung oil (TO) have improved hydroxylation of the double bonds in the fatty acid chains of the unsaturated oil followed by the alcoholysis of the hydroxylated oil. The comparative chemical analysis between unmodified and modified TO suggested that the hydroxyl content increased significantly after the hydroxylation and alcoholysis reactions. Incorporated wood flour (WF), microcrystalline cellulose (MCC) or rice husk ash (RHA) as …
Published in Journal of Polymer & Composites · Vol. 3, Issue 3, 2015 · pp. 43–47 Read article
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Design, Analysis and Fabrication of Composite Leaf Spring
Abstract: AbstractNowadays composite materials are one of the materials which are greatly attracting researchers. Reducing weight and increasing or maintaining the strength of materials is getting to be highly important research issue in this modern world. In this paper, design, fabrication and analysis of composite leaf spring have been presented. The objective is to design a composite leaf spring with reduced length and weight as compared to steel leaf spring. The …
Published in Journal of Polymer & Composites · Vol. 2, Issue 3, 2023 · pp. 4–14 Read article
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Alcid Bamboo
Abstract: AbstractNatural bamboo is one of the fastest growing plants, with maturity cycle of 3–4 year, thus making highly attractive natural renewable resource compared to hardwood. This bamboo can replace timber in many applications, but their mechanical property differs with species, age, climatic factor, moisture content and different height of culm. Due to this the natural bamboo can be replaced by synthetic one which are man-made and also known as engineered …
Published in Journal of Polymer & Composites · Vol. 2, Issue 3, 2023 · pp. 28–32 Read article
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Parametric Study of Twin Screw Extrusion for Processing Epoxy/Carbon Black Nanocomposites Using Orthogonal Array Technique
Abstract: AbstractThis paper presents the experimental investigation of the influence of process parameters of twin screw extrusion on the dispersion and electrical, thermal and mechanical properties of epoxy/CB nanocomposites. Four factors, namely, loading level of carbon black (0, 2, 4, 6, 8 and 10 wt%) in epoxy, screw speed (75, 100 and 125 rpm), temperature (5 °, 15 ° and 30 °C) and number of passes (5, 10 and 15) were …
Published in Journal of Polymer & Composites · Vol. 1, Issue 2, 2013 · pp. 15–26 Read article
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Conductive Organic Polymer Based Inorganic-Organic Hybrid Composite: Synthesis and Characterization
Abstract: Inorganic organic (IO) hybrids where inserted conducting organic polymer (COP) imprints their polymeric nature onto the hybrid material are one of the most promising candidates for solving many technological problems of modern technocratic society. The Inorganic-organic hybrid material of para toluidine (organic) & mercuric chloride (inorganic) was synthesized by using “instant-heating and slow-cooling” technique. Some light orange coloured plate-like crystals were obtained. XRD pattern of the grown crystal were analysed …
Published in Journal of Polymer & Composites · Vol. 8, Issue 1, 2020 · pp. 1–5 Read article