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140 articles for “hydro-electric”
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Thermal and structural properties of surface treated ragweed fiber reinforced biodegradable polylactic acid biocomposites
Abstract: Natural fiber-reinforced composites (NFRC) are becoming more popular as technological advance recognizes the need for eco-friendly materials. This work presents Giant ragweed (Ambrosia trifida) as a new composite reinforcement material into polylactic acid (PLA) matrix to form novel natural fiber-reinforced composites. Different types of retting techniques are utilized, and hydrogen peroxide retting is proven to provide the most optimized properties. The fibers are taken through subsequent extraction and grinding processes. …
Published in International Journal of Composite and Constituent Materials · Vol. 8, Issue 2, 2022 · pp. 13–31 Read article
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Evaluation of Corrosion kinetics of zirconium dioxide dispersion strengthened Aluminium metal matrix composites
Abstract: The corrosion kinetics of Aluminum 7068-Zirconium dioxide composites is a major aspect for assessing the capability of utilizing the materials for aviation segments. Aluminum 7068 matrix is a particular class of composite which is known for its high strength characteristics even in critical situations and is utilized as a part of aerospace, automobile and ordinance applications. However the investigations on impact of reinforcements, for instance zirconium dioxide on corrosion conduct …
Published in International Journal of Metallurgy and Alloys · Vol. 4, Issue 1, 2018 · pp. 9–23 Read article
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Recent Trends in Bio Ceramic and Polymer Compositesfor Biomedical and Dental Applications
Abstract: Advanced biomaterials with great promise for use in dental and biomedical applications are bio-ceramic and polymer composites. These composites combine the flexibility, biodegradability, and processability of polymers with the mechanical strength, bioactivity, and biocompatibility of bio-ceramics. Clinical success is often limited by the biological response and tissue compatibility of conventional materials such as metals and single-phase ceramics. Oste conductivity and bone-like characteristics are exhibited by bio-ceramic materials, such as hydroxyapatite …
Published in International Journal of Composite Materials and Matrices · Vol. 11, Issue 2, 2025 · pp. 1–5 Read article
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Effect of Coupling Agent on Organoclay Dispersion in Polyethylene/Organoclay Nanocomposites for Packaging Industry
Abstract: Low-density polyethylene (LDPE) is one of the most widely used polymers in various fields, but due to the hydrophobic nature of LDPE, it is hard to prepare an LDPE/clay nanocomposite. In this article, an LDPE/organoclay nanocomposite, which can be used in the packaging industry, was prepared by melt-blending organoclay with a polymer matrix (LDPE) and compatibilizer, low molecular weight oxidized polyethylene. The influences of organoclay, and compatibilizer during melt mixing …
Published in International Journal of Composite Materials and Matrices · Vol. 9, Issue 1, 2023 · pp. 1–11 Read article
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The Improvement of Polyvinyl Chloride Synthesis Using Different Approaches
Abstract: Polyvinyl chloride (PVC) is produced by the polymerization of the vinyl chloride monomer either by direct chlorination of olefins or by addition of hydrogen chloride to acetylene. The polymerization conditions are: heat, peroxides or oxidizing agents with basic structure as -CH2CHCl.CHCl-CH2.CHCl-. Polyvinyl chloride is a thermoplastic and its plasticity can be increased by incorporating ‘plasticizers’ of relatively low molecular weight organic materials during molding or extrusion. PVC has high hardness …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 6, Issue 2, 2020 · pp. 48–52 Read article
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Mechanical and Thermal Characterization of Natural Fiber-Reinforced Epoxy Composites for Structural Applications
Abstract: Natural fiber reinforced polymer (NFRP) composites have emerged as promising alternatives to conventional synthetic fiber composites owing to their environmental sustainability, low density, and competitive specific mechanical properties. However, a comprehensive and simultaneous evaluation of both mechanical and thermal performance of jute/sisal hybrid natural fiber epoxy composites under systematic fiber treatment conditions remains insufficiently addressed in the literature. The present study investigates the mechanical and thermal characterization of jute and …
Published in International Journal of Composite Materials and Matrices · Vol. 12, Issue 1, 2026 · pp. 37–48 Read article
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Influence of Surface Treatments on the Adhesion of Plant Fibers to Epoxy Resin
Abstract: Because of their primary benefits, moderate strength and stiffness, low cost, and the fact that they are a renewable, biodegradable, and environmentally safe material, natural fibers are seen to have potential use as reinforcing agents in polymer composite materials. Since they are inherently hydrophilic, moisture can easily build up on them, weakening or plasticizing the fibers’ adhesion to the surrounding matrix and affecting the performance of composite materials used in …
Published in International Journal of Agrochemistry · Vol. 11, Issue 1, 2025 · pp. 12–24 Read article
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Experimental-based Study of Justicia carnea and Moringa oleifera Extract on Crude oil Remediation of Contaminated Loamy Soil
Abstract: This study was carried out to investigate the comparison of the performance of Justicia carnea and Moringa oleifera plants extract treated with direct sunlight and the absence of sunlight on the bioremediation process of crude oil contaminated loamy soil. Total petroleum hydrocarbon degraded,total microbial count, pH, amount of nitrogen, phosphate, and potassium, soil total organic carbon, total soil organic matter were examined. Twenty one (21) batch reactors were used for …
Published in International Journal of Environmental Chemistry · Vol. 7, Issue 2, 2021 · pp. 7–23 Read article
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A Short Review on Energy Crisis in Pakistan and Sustainable Energy Solutions
Abstract: Energy plays an important role in the economy of a developing country like Pakistan. Energy crises have become a major issue all over the world. World population is increasing and the conventional energy resources are decreasing day by day. Pakistan unfortunately has a wide gap between energy production and requirement. The government of Pakistan must take some wise decisions to narrow this gap. Pakistan is a blessed country with different …
Published in International Journal of Electrical Power System and Technology · Vol. 4, Issue 2, 2018 · pp. 1–11 Read article
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Review On Bipolar Plate Geometric Design and Materials for Proton Exchange Membrane Fuel Cell Applications
Abstract: Abstract Bipolar plates (BPs) are vital components in proton exchange membrane fuel cells (PEMFCs), performing multiple essential functions that directly influence system efficiency, durability, and overall operational performance. They ensure uniform distribution of reactant gases across the active area, provide electrical conductivity between adjacent cells, assist in effective thermal management by dissipating heat generated during electrochemical reactions, and maintain proper sealing to prevent leakage of gases and coolant. Among these …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 11, Issue 2, 2025 · pp. 40–56 Read article
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Antimicrobial Activity of Waste Pulp of Citrus sinensis and Citrus limetta
Abstract: An antimicrobial is a substance which kills or inhibits the growth of different types of micro-organisms such as bacteria, fungi or protozoans. Citrus fruit products act as antimicrobial agents against the bacteria and the fungus. Citrus fruits belong to the family Rutaceae. The main objective was to determine the antimicrobial activity of Citrus sinensis waste pulp and to determine the antimicrobial activity of Citrus limetta waste pulp. The citrus pulp …
Published in International Journal of Industrial Biotechnology and Biomaterials · Vol. 4, Issue 1, 2018 · pp. 11–22 Read article
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Comparative Study of Corrosion Inhibition In Carbon Steel Using Non Ionic Surfactants In Acidic Medium
Abstract: The use of surfactants is one of the numerous ways of protecting a metallic surface from electrochemical oxidation or corrosion. The amphiphilic nature of these surfactants leads to the formation of a protective layer on the metallic surface, effectively minimizing the area of contact between the fluids and the metal, thus inhibiting corrosion. Cationic surfactant like CTAB (Cetyltrimethylammonium bromide) has been most commonly used as a corrosion inhibitor, but since …
Published in International Journal of Chemical Engineering and Processing · Vol. 4, Issue 1, 2018 · pp. 21–29 Read article
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Advancing Clean Energy: The Role of Biohydrogen Technology
Abstract: The process of gasification turns carbonaceous materials derived from biomass or fossil fuels into gases, with nitrogen (N2), carbon monoxide (CO), hydrogen (H2), and carbon dioxide (CO2) being the main fractions. By reacting carbonaceous materials (coal, petroleum, and biomass) with a regulated amount of oxygen and/or steam at high temperatures, a thermochemical process known as gasification produces carbon monoxide and hydrogen. Methanol and chemicals like urea and ammonia, which are …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 11, Issue 1, 2025 · pp. 46–54 Read article
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Physico-mechanical, and Biodegradation Properties of Polyethylene/Food Polysaccharide Blends
Abstract: Hydrophilic/polar and hydrophobic/non-polar materials do not blend well, which causes issues in the production of biodegradable plastic. Plasticizer (glycerol) was one of the components added to the mixture to increase compatibility between the two materials; this also made the film less brittle. The purpose of this study is to look at how different food polysaccharide contents affect the physico-mechanical, and biodegradation characteristics of novel polymeric-based bio-composite films made from low-density …
Published in International Journal of Composite and Constituent Materials · Vol. 9, Issue 1, 2023 · pp. 1–13 Read article
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Use of Micro- and Nanobubble in Waste Water Treatment Technology – Review
Abstract: ABSTRACT The environmental nanotechnology is a technical discipline which research features of natural and man-made nanomaterials, applications, techniques for their characterization, integration processes and transformation into ecosystems. Microbubbles have the capability to change the normal characteristic of water. The microbubbles (MBs) have diameter more than 100 μm, the micro-nanobubbles (MNBs) have diameter between 1 to 100 μm and the nanobubbles (NBs) have diameter less than 1 μm within the fluid …
Published in International Journal of Industrial Biotechnology and Biomaterials · Vol. 4, Issue 1, 2018 · pp. 5–10 Read article
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Synthesis and characterization of high saline water resistant sulphur composite from petrochemical waste
Abstract: Petrochemical industry produces variety of side products and waste materials like sulphur, spent catalysts, spent adsorbents, etc. These waste materials can be converted to the value-added products by forming their composites with unique properties. For example, sulphur due to its chemical properties like high resistivity to corrosive environment, hydrophobic nature, antifungal property, its composite can be prepared and used in construction industries as a substitute for cement composite material. To …
Published in International Journal of Green Chemistry · Vol. 6, Issue 2, 2020 · pp. 64–77 Read article
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Interfacial Engineering and Performance Optimization of Jute-Fiber-Reinforced Epoxy Laminates
Abstract: The increasing environmental concerns associated with synthetic fiber reinforced polymer composites have driven substantial research interest toward naturally derived, biodegradable fiber alternatives. This study presents a comprehensive mechanical and thermal characterization of jute fiber reinforced epoxy composites fabricated via hand lay-up followed by compression molding. Jute fibers were subjected to alkali treatment using 5 wt% sodium hydroxide (NaOH) solution for 4 hours at ambient temperature to enhance fiber–matrix interfacial bonding …
Published in International Journal of Polymer Science and Engineering · Vol. 12, Issue 1, 2026 · pp. 52–64 Read article
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Green Synthesis, Characterization and Antimicrobial Studies of Ni(II) and Cu(II) Schiff Base Complexes
Abstract: Solvent-assisted mechanochemical reaction was used to synthesize new transition metal complexes of Ni(II) and Cu(II) with Schiff base ligand (H2L) obtained from condensation of 2-hydroxy-1- napthaldehyde with 2 aminobenzimidazole. Melting point/decomposition temperature, solubility test, FT-IR, powder x-ray analysis, conductivity measurement, magnetic susceptibility, elemental microanalysis, and UV/VIS spectral investigations were used to characterize the Schiff base and complexes. The complexes are of varied colours and have sharp melting points, and they …
Published in International Journal of Green Chemistry · Vol. 8, Issue 1, 2022 · pp. 9–18 Read article
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Low-graded coals to upgrade
Abstract: Coal can be defined as a chemically and physically heterogenous, “combustible”, sedimentary rock consisting of both organic and inorganic materials. Organically, coal consists primarily of carbon, hydrogen, and oxygen, with lesser amounts of sulphur and nitrogen. Inorganically, coal consists of a range of ash-forming compounds distributed throughout coal. Major types of analysis are proximate analysis, ultimate analysis and calorific value analysis. Heat value or calorific value determines energy content of …
Published in International Journal of Energetic Materials · Vol. 5, Issue 2, 2019 · pp. 42–60 Read article
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In Vitro Evaluation of Bioremediation Capacity of a Commercial Probiotic, Bacillus clausii, for Chromium (VI) and Lead (II) Toxicity
Abstract: Heavy metals cause disastrous effects on any living organisms. Probiotics have the ability to reduce metal toxicity. Commercial probiotics having bioremediation capacity can use these bacteria as an alternative to conventional remediation methods. The bioaccumulation of heavy metals including chromium (VI) (Cr [VI]) and lead (II) (Pb [II]) causes fatal toxicity in humans. Some naturally occurring bacterial species, such as Bacillus and Pseudomonas, contribute their role in bioremediation of these …
Published in International Journal of Industrial Biotechnology and Biomaterials · Vol. 4, Issue 2, 2018 · pp. 1–16 Read article