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33 articles for “bond order”
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Natural Bond Orbital, Bond Order and Frequency based Study of Hydrogen Bond Formation in Different Glycols-Water Complex
Abstract: Natural bond orbital (NBO) analysis, natural atomic orbital (NAO) analysis, Wiberg bond order, vibrational frequency, free energy and enthalpy changes for hydrogen bond formation in different polyethylene glycol + water complex and dipropylene glycol + water complex have been performed by Hatree Fock (HF) method, second order Møller–Plesset perturbation theory (MP2) and Density Functional Theory (DFT) using 6-31++G(d,p) basis set. In order to describe hydrogen bond interaction appropriately, B3LYP DFT-D, …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 4, Issue 1, 2013 · pp. 1–20 Read article
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Mechanical Performance Evaluation of Brachyuran Shell Particle-Infused S-Glass Fibre Epoxy Polymer Composites
Abstract: Epoxy composites bio-filled with brachyuran crab shell powder and reinforced with S-glass fibres at different loadings (2%, 4%, and 6%) are tested for their mechanical properties in this work. Using modest amounts of filler significantly improved hardness, ultimate tensile strength, and flexural strength in the empirical data. The largest increase in hardness was 64.42% at 4% filler, up from 26.22% at 2%; however, there was a dramatic decrease to 13.11% …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 500–507 Read article
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The Role of Surface Treatments on Mechanical and Interfacial Shear Strength of Pineapple Leaf Fibers
Abstract: Natural fibers are seen as having potential application as reinforcing agents in polymer composite materials due to their main advantages, which include moderate strength and stiffness, low cost, and being an environmentally beneficial, degradable, and renewable material. They are susceptible to absorbing moisture because of their innate hydrophilicity, which can weaken or plasticize the adherence of the fibers to the surrounding matrix and impact the performance of composite materials employed …
Published in Journal of Materials & Metallurgical Engineering · Vol. 12, Issue 3, 2022 · pp. 18–28 Read article
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The Effect of the Cyclic Steam Stimulation on the Thermal Cement Bond: Cased Hole Wire Logging Evaluation (Segmented versus Original) Tools
Abstract: When focusing on the oil thermal well life integrity, One of the current trends is to optimize the use of the innovative solutions in order to improve the quality of the cement bonding (i.e. cement to pipe bond and formation). This trend is in a trail application in Fula North East thermal wells in Sudanese oilfields. The objective of this paper is to discuss how the Cyclic Steam Stimulation (CSS) …
Published in Journal of Materials & Metallurgical Engineering · Vol. 9, Issue 3, 2019 · pp. 50–60 Read article
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Ab Initio and Density Functional Theory Studies on D-Serine
Abstract: The Hartee-Fock and density functional method (B3LYP) with 6–311++G (d, p) basis set were employed to study the structural and spectroscopic properties of amino acid D-serine in ground state. The structural and vibrational parameters of amino acid D-serine were obtained using optimised conformer. Using Vibrational Energy Distribution Analysis (VEDA) 4 program and theoretically obtained FTIR and FT-Raman data complete assignment of vibrations and analysis of fundamental modes of the compound …
Published in Research & Reviews : Journal of Physics · Vol. 9, Issue 3, 2020 · pp. 29–45 Read article
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Synthesis of Zinc Oxide Nanoparticles Through Polymeric Precursor Route and their Integration into Functional Nanocomposites
Abstract: A polymer precursor approach for creating zinc oxide (ZnO) nanoparticles with regulated size and shape is described in this work. By stabilising and capping particles, the polymer-assisted pathway efficiently reduces particle agglomeration while facilitating controlled nucleation and growth. The surface shape and dispersion of the produced ZnO nanoparticles were assessed using the scanning electron microscopy (SEM). When compared to traditional synthesis techniques, the addition of polymer greatly enhanced surface homogeneity …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 883–890 Read article
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Role of Strontium in Structural and Dielectric characterstics of Barium Titanate
Abstract: Ba₀.₇₅Sr₀.₂₅TiO₃ (BST) compound was synthesized through the conventional solid-state reaction methodology, aimed at investigating its structural, microstructural, and dielectric characteristics. The structural characterization was executed employing X-ray diffraction (XRD), and the resultant diffraction patterns were refined utilizing the Rietveld method, which substantiated the establishment of a single-phase perovskite configuration exhibiting tetragonal symmetry and belonging to the P4mm space group. The refined lattice parameters revealed subtle distortions correlating with the substitution …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 1157–1163 Read article
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Experimental Study on Load Transfer Mechanism in Columns Retrofitted by Bonding Precast Segments and FRP Wrapping
Abstract: An experimental study was conducted to investigate the load transfer mechanism in columns retrofitted with precast segments and Fiber-Reinforced Polymer (FRP) wrapping. As the demand for structural retrofitting grows, it becomes crucial to comprehend the behavior and effectiveness of retrofit techniques to ensure the safety and integrity of existing infrastructure. The study involved subjecting a series of column specimens to axial compression loads in order to evaluate the load transfer …
Published in Journal of Polymer & Composites · Vol. 12, Issue 2, 2024 · pp. 153–165 Read article
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IoT Innovations in Power System Monitoring: Reviewing Transmission Line Multiple Fault Detection Systems
Abstract: In this review, it is possible to highlight a new project idea called Transmission Line Multiple Fault Detection System with Internet of Things (IoT). It is a IoT based research that helps in identifying multiple failures on transmission lines leading to fast and correct response. It consist of installing many senors of different types like temperature sensors, current sensors, and vibration sensors on the lines in order to carry out …
Published in Journal of Control & Instrumentation · Vol. 15, Issue 1, 2024 · pp. 20–28 Read article
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An In-Depth Analysis of Nanocomposites and Their Uses
Abstract: A nanocomposite material is composed of several phases with at least one, two, or three dimensions at the nanoscale. When material dimensions are shrunk to the nanoscale level, phase interfaces are created, and they are essential for enhancing the material's qualities. The surface area to volume ratio of the reinforced material used in the production of nanocomposites has a direct impact on our understanding of the relationship between structure and …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 24, Issue 3, 2022 · pp. 15–33 Read article
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An Overview of Blends Based on Thermoplastic Starch
Abstract: In recent years, research has concentrated on biodegradable substances to replace petroleum- based polymers for use in food packaging. Biopolymers are seen to be the most promising material for this purpose due to their biodegradable nature and long shelf life characteristics like resistance to chemical or enzymatic processes. Starch is a biopolymer that is cheap, sustainable, and eco-friendly and could be a feasible method for making biocomposites. The production and …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 14, Issue 3, 2023 · pp. 47–52 Read article
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Investigation of Jute Mat with Waste Fish Net by Varying Matrices in Hybrid Composites
Abstract: AbstractIn this study the low cost material of multi filament waste fish net and jute fibres were incorporated as the main reinforcing materials with epoxy resin and polyester resin as the matrix in order to increase the strength of the hybrid composites. The samples were fabricated using hand layup technique. The nylon fibre of waste fish net possesses high impact strength, elasticity property and highly resistant to abrasion of chemicals …
Published in Journal of Polymer & Composites · Vol. 3, Issue 3, 2015 · pp. 27–34 Read article
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Photochemical Insights into Light: Responsive Heterocyclic Compounds
Abstract: eterocyclic compounds are significant in a wide range of chemical fields. They are crucial components of the structural makeup of bioactive substances. Such compounds can be conveniently transformed through photochemical processes. Chemical reagents are rarely utilized. It is possible for members of one compound family to change into members of another. There is discussion of three key categories of photochemical rearrangements involving heterocyclic compounds: Photochemical reactions involving hydrogen atom transfer …
Published in International Journal of Photochemistry and Photochemical Research · Vol. 1, Issue 2, 2023 · pp. 01–07 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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Adsorptive Removal of Rhodamine-B Using Eco- Synthesized Green Tea–Aluminium Nanoparticles
Abstract: This study examines the use of Green Tea–Aluminium Nanoparticles (GT-Al NPs), a unique and eco-friendly adsorbent, to remove the dangerous Rhodamine-B dye from water. For characterisation, SEM, FTIR, TGA, and EDX were employed. We evaluated the effects of pH, temperature, dosage, contact time, and initial dye concentration on adsorption efficiency. First- and second-order pseudo models were used to characterize adsorption kinetics, and the Langmuir model explained equilibrium, as well as …
Published in Emerging Trends in Chemical Engineering · Vol. 12, Issue 3, 2025 · pp. 61–72 Read article
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Exploration of Diverse Epoxy-Based Surface Coating Methods for Enhancing Anticorrosion Characteristics
Abstract: Epoxy-based polymers, commonly referred to as polyepoxides, constitute one of the most versatile and widely adopted categories of polymeric materials due to their exceptional structural, mechanical, and chemical characteristics. Their unique macromolecular framework enables strong interfacial bonding, high mechanical stability, and superior resistance to environmental and chemical degradation, positioning them as advanced alternatives to many traditional organic corrosion inhibitors that often fail under prolonged exposure to aggressive conditions When polyepoxides …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 167–177 Read article
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Machine Learning Based Optimization of Polymer Structure Property Relationships in Composite Material Systems
Abstract: In modern engineering applications, polymer-based composite materials have garnered a lot of attention because of their lightweight nature, high strength-to-weight ratio, and changing physical features. In order to maximize the relationships between polymer structure and properties in composite materials, this study suggests a strategy based on reinforcement learning (RL). The research utilized the Polymer Composite Properties Dataset, which contains 12,700 records associated with polymer matrices, reinforcement fillers, interfacial bonding characteristics, …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 242–255 Read article
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Mechanical and Physicochemical Characteristics of Nano-Hydroxyapatite Polymer Composites
Abstract: This study focuses on the development and characterization of nano-hydroxyapatite (nHAp)-reinforced poly (lactic acid) (PLA) composites for biomedical applications. The composites, prepared with varying nHAp content (5–25 wt%), were evaluated for their mechanical and physicochemical properties, including tensile strength, Young’s modulus, elongation at break, thermal stability, hydrophilicity, and crystallinity. Results revealed that tensile strength increased significantly with the incorporation of nHAp, reaching a peak of 62 MPa at 15 wt%, …
Published in Journal of Polymer & Composites · Vol. 13, Issue 2, 2025 · pp. 115–125 Read article
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A Study on Breast-feeding Self-Efficacy and Its Associated Factors Among Mothers
Abstract: Introduction: The process through which a kid is fed human breast milk is known as breastfeeding. Breastfeeding has a significant impact on disease prevention and health promotion. It helps to increase bonding with baby and mother. Oestrogen, progesterone, prolactin, and oxytocin are the four primary hormones that contribute to the production of breastmilk. A modifiable element that can improve breastfeeding success and duration is breastfeeding self-efficacy. Aim: To evaluate mothers' …
Published in International Journal of Midwifery Nursing And Practices · Vol. 1, Issue 1, 2023 · pp. 31–36 Read article
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Production of Floor Tile Using Recycle Low Density Polyethylene And Groundnut Shell as a Filler
Abstract: The production of flow tile using recycled low density polyethylene and groundnut shell as filler with the particle size of 120µm was carried out in this project . 10 pphr of all the fillers were weighed and mixed with recycled low density polyethylene on two roll mill machines. The result on this work showed that on FTIR five functional groups were identified and they are; OH, C-H, CH2/CH3, C-O, C=H. …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 11, Issue 1, 2024 Read article