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923 articles for “nature”
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Enhancement of Fire Retardancy Properties of Plywood by Incorporating Silicate, Phosphate and Boron Compounds as Additives in PMUF Resin
Abstract: Wood is one of the supreme sustainable, naturally growing materials that consist principally of combustible organic carbon compounds. Since plywood are widely used now a day especially in buildings, furniture and cabinets. Since the demand of plywood with fire retardancy properties has been increasing over last years, the objective of this study is to improve the fire retardancy of Wood Panel Products by adding Tricresyl phosphate, Di-Sodiumocta Borate and Sodium …
Published in International Journal of Polymer Science and Engineering · Vol. 1, Issue 1-2, 2015 · pp. 11–15 Read article
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Environment Friendly, Exterior Grade Resin Adhesive from Phenol-Animal Glue Formaldehyde (PGF)
Abstract: Phenoplast and aminoplast based resins are the important adhesive for the manufacturing of marine grade, shuttering and moisture resistance plywood. Environmental concerns and higher cost of petroleum based resins have resulted in the development of technologies to replace phenol partially by biomaterials for the manufacturing of resin adhesive. Natural bio-based materials such as tannin, CNSL (cardanol), lignin soya etc. are used as partial substitution of phenol. This paper presents the …
Published in International Journal of Polymer Science and Engineering · Vol. 1, Issue 1-2, 2015 · pp. 16–22 Read article
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Manufacturing of BWP-Grade Plywood from Resin Adhesive Using Animal Protein (Glue) by Partial Replacement of Phenol
Abstract: Abstract This paper presents the development of plyboard using phenol–glue–formaldehyde (PGF) resin and their basic mechanical properties. Phenoplast and aminoplast-based resins is the important adhesive for the manufacturing of boiling water proof (BWP) grade, shuttering and moisture resistance plywood. Environmental concerns and higher cost of petroleum-based resins have resulted in the development of technologies to replace phenol partially by biomaterials for the manufacturing of resin adhesive. Natural bio-based materials such …
Published in International Journal of Polymer Science and Engineering · Vol. 1, Issue 1-2, 2015 Read article
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FABRICATION AND EVALUATION OF VINYL ESTER RESIN BASED HYBRID COMPOSITES
Abstract: Jute is most widely used natural fiber in combination of various polymer because of easy availability, low environment impact, low density, low production cost, satisfactory mechanical properties and usage in wide range of applications. Mechanical properties of fibers are depending upon various factors such as fiber length, fiber orientation, fiber contact etc. In the present study, composite of Jute (J) and Glass fiber (G) have been fabricated using hand lay …
Published in International Journal of Polymer Science and Engineering · Vol. 3, Issue 1, 2017 · pp. 26–31 Read article
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Design and Simulation of Single Phase Five Level Inverter for a Novel Solar PV Hybrid Energy System
Abstract: Abstract - In current global energy scenario, renewable energy sources can play an important role in meeting the ever increasing energy demand. This is due to exhaustive nature of fossil fuels and the environmental pollution caused by other conventional energy sources. Among renewable energy sources, solar photo-voltaic system is the most popular one as solar energy is available in abundance without paying any cost. The output voltage generated from the …
Published in International Journal of Polymer Science and Engineering · Vol. 4, Issue 1, 2018 · pp. 1–9 Read article
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Viscoelastic Properties of Polymer Nanocomposites with Polydispersity in Nanoparticle Sizes
Abstract: The viscoelastic properties of polymer nanocomposites are investigated as a function of the size distribution of nanoparticles, the nature of interactions and results are compared with the pure polymer melt. We modeled our PNCs with two sizes of nanoparticles and polymer blends and four different cases with different polymer-nanoparticle and nanoparticle-nanoparticle non-bonded interactions. We have observed the enhancement in properties is not only due to the addition of nanoparticles but …
Published in International Journal of Polymer Science and Engineering · Vol. 5, Issue 2, 2019 · pp. 42–52 Read article
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Synthesis of Biodegradable Nano Composite of PMMA vinyl Polymer with Corn Cob
Abstract: Vinyl polymers are the largest category of polymers which have wide applications. PMMA is important vinyl polymer which when modified with with Corn Cob(agricultural waste) for nanocomposite formation, then it may result biodegradable modified polymer. Corn cobs (focal piece of maize) are either treated as waste or consumed as fuel causing ecological concern. So as to accomplish its worth option in new research regions, corn cob can be prepared synthetically …
Published in International Journal of Polymer Science and Engineering · Vol. 6, Issue 1, 2020 · pp. 20–24 Read article
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Study of Heavy Metal ion adsorption from Synthetic Wastewater with the help of biomass and analysis of Mathematical Model
Abstract: The biofilm matrix is a mixture of secreted polymers, metabolites and nutrients ingested, lysis solution products, and even particle debris. This matrix, which is polyanionic by nature, is essential for the activated carbon of metal cations. In this study, the heavy metal adsorption mechanism in biofilms is modelled in one spatial dimension. The numerical method is a free-boundary value issue for nonlinear parabolic and quadratic partial differential equations. Parabolic equations …
Published in International Journal of Polymer Science and Engineering · Vol. 8, Issue 1, 2022 · pp. 45–56 Read article
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Green Synthesis of Zinc Oxide (ZnO) Nanoparticles using Urtica dioica Plant Leaf Extract
Abstract: The green synthesis of nanoparticles by biological systems, particularly plant extracts, has become an emerging area of nanotechnologies. Nano materials have wide range application in various fields such as electronics, optics, material science and bio medical science due to their size and morphology. Zinc oxide is a versatile semiconductors material and has attractive properties like wideband gap (3.2eV) large exciton biding energy, high stability and environmental friendly material. The synthesis …
Published in International Journal of Polymer Science and Engineering · Vol. 8, Issue 2, 2022 · pp. 44–57 Read article
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Photon assisted Bio Nanopolymers for applications of drug delivery, diagnosis & would healing
Abstract: Biopolymers are valuable complex materials. They attract attentions of many scientists, engineers, and medical professionals’ for application research. The focus of this research is a base line assessment of valuable Nanosized biopolymers, Chitosan. As ordinary polymers, nano sized biopolymers are visualized as natural and synthetic polymers. Hence, systematic descriptions of nanosized biopolymers, the synthesis methods, characterization methods, and biomedical application will be presented. In this regard, the photon activated green …
Published in International Journal of Polymer Science and Engineering · Vol. 8, Issue 2, 2022 · pp. 25–36 Read article
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Gum Rosin: Manufacturing, Applications, Market Scenario and Opportunities
Abstract: A review about gum rosin and its derivatives has been compiled. Rosin, also known as colophony, is a naturally occurring, abundantly available, biodegradable, cheap and non-toxic raw material. It can be easily modified to obtain industrially useful products. Gum Rosin and its derivatives are widely used in numerous industrial applications such as resins, monomers, intermediates, curing agents, emulsifiers, medicines, tablets, energy drinks, biocides etc. Other industrial usage are in rubber …
Published in International Journal of Polymer Science and Engineering · Vol. 9, Issue 1, 2023 · pp. 32–37 Read article
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Synthesis and Characterization of Poly(vinylpyrrolidone) / Starch / Dimethylacrylamide Hydrogel by Gamma Radiation and Its Application in Basic Fuchsin and Methyl Orange Removal
Abstract: Gamma radiation was used to create a number of PVP/Starch/Dimethylacrylamide (PSD) based hydrogels. Investigated were the effects of several parameters, such as radiation dose, material composition, and pH, on the characteristics of hydrogels, such as gel content and swelling behavior. Radiation doses ranged from 10 to 25 kGy, and 10 kGy was determined to be the ideal dose. Investigations on the impact of dimethylacrylamide (DMA) composition on swelling were investigated. …
Published in International Journal of Polymer Science and Engineering · Vol. 9, Issue 2, 2023 · pp. 1–20 Read article
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A Brief note on Biomechanics
Abstract: Biomechanics is generally referred to as the study of how the systems of living organisms from plants to animals, react to the various forces of nature and stimuli. Biomechanics is the science of dealing with effects produced by external and internal forces on the living body. The need to study biomechanics for any the particular case is necessary for every physical educator or coach, who is involved in teaching movement …
Published in International Journal of Mechanics and Design · Vol. 2, Issue 2, 2016 · pp. 47–49 Read article
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100 Years of General Theory of Relativity
Abstract: The General Theory Relativity is the generalization of the Special Theory of Relativity. This theory certainly is one of the most extraordinary achievement of the scientific world till date. Einstein's discovery of General Theory of Relativity is itself series of dramatic incidents, from the beginning until it’s proven. The theory reviewed our understanding of gravity, light and time, and paved the way for many modern technologies. The observational evidence is …
Published in International Journal of Mechanics and Design · Vol. 2, Issue 1, 2016 · pp. 20–32 Read article
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Ballistic Impact Performance of Composite Armor Using Ultrasonic Nde and Ansys Autodyn
Abstract: The world is currently under the threat of terrorist attacks and wars. This will be very critical because the scientists have developed advanced weapons (guns, bullet) for the awesome attacks. Therefore, the safety of soldiers and vehicles of the army has become a major concern. Armors are used in defense applications to provide protection for soldiers and military vehicles. In general, armor is made from natural materials, composite materials and …
Published in International Journal of Mechanics and Design · Vol. 9, Issue 1, 2023 · pp. 1–23 Read article
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Robotic Path: Analysis of Algebraic Topological Properties of Stream Lines Due to Source-Sink, Dipole and Vortex
Abstract: The importance of robotic path planning cannot be overstated. Robotic path planning plays a crucial role in ensuring efficient and safe navigation for robots. It enables robots two autonomously determine the most optimal path to reach their destination while avoiding of obstacles and potential collisions. By carefully analyzing the environment and considering various factors such as distance, speed, and obstacles, robotic path planning enhances the overall performance and productivity of …
Published in International Journal of Mechanics and Design · Vol. 9, Issue 2, 2023 · pp. 1–8 Read article
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Composites: The Future Generation of Aircraft Materials
Abstract: New developments in material science and its technologies find their best fulfilling areas in aircraft and space vehicles. The aviation and space industry has often been a catalyst for the development and innovation of a new material framework in its construction. The basic parameters for aerospace development are weight reduction, system-specific requirements, and low cost. Materials have an impact on the entire life cycle of an airplane, from the design …
Published in International Journal of Manufacturing and Materials Processing · Vol. 7, Issue 2, 2021 · pp. 1–10 Read article
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Fabrication of Mechanical Raking Beach Cleaner with Offset Tine
Abstract: In the rapidly changing world &swift urbanization, cleaning and maintainingclean beaches are of equal importance.Beaches are a natural resource that in recentyears has been turned into Garbage Dump.Termed as "Beach Pollution" it mainlyoccurs due to the human activities along thecoastline and inland which threatens thevery human existence & Marine health.Such pollution is generally categorized intoLitter/Trash, Seaweed, Oil spill, Stone/shell& many more. In the same context, we havedeveloped the method to …
Published in International Journal of Manufacturing and Materials Processing · Vol. 8, Issue 1, 2022 · pp. 1–5 Read article
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Green Manufacturing Implementation Framework for Ethiopian Manufacturing Industry
Abstract: In the current period of fierce market competition, industries are introducing efficient production processes to ensure their existence. The rate of contamination of natural resources such as water, soil, and air are increasing due to industrial waste. Rapid environmental degradation has demanded that enterprises worldwide adopt environmentally responsible manufacturing practises. Green manufacturing methods were envisaged and implemented in this context by large-scale firms in industrialised countries. Managing green manufacturing practises …
Published in International Journal of Manufacturing and Materials Processing · Vol. 8, Issue 2, 2022 · pp. 1–5 Read article
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Study of Liquid Rubber Printing on a 3D Printer by Using a Peristaltic Pump
Abstract: The additive manufacturing (AM) process known as direct-ink writing (DIW), also known as direct-print (DP) or direct-write (DW), has great practicality in a variety of material types. In this process, it is essential for the ink formulation utilized for the DIW process to be a paste-type ink with a time-dependent shear-thinning property. Rubber has been utilized in a variety of applications however, the high pressure and temperature needed to treat …
Published in International Journal of Manufacturing and Materials Processing · Vol. 8, Issue 2, 2022 · pp. 34–44 Read article