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391 articles for “density”
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Framework-Based Optimization of Catalysis Efficiency through Reaction Pathway Engineering
Abstract: The rational design of heterogeneous catalysts through framework-based approaches has emerged as a transformative strategy for controlling reaction pathways and enhancing catalytic efficiency. This paper examines recent advances in the optimization of catalytic performance through engineered frameworks, including metal-organic frameworks (MOFs), zeolites, and related porous materials. By integrating computational methods with experimental validation, researchers have achieved unprecedented control overactive site architecture, reactant confinement, and elementary reaction steps. This work reviews …
Published in Emerging Trends in Chemical Engineering · Vol. 13, Issue 2, 2026 · pp. 88–99 Read article
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Wireless Sensor Network Localization Based on Static Anchor Node
Abstract: Anchor-based localization is a crucial challenge in wireless sensor networks (WSNs), aiming to determine the positions of all sensors by leveraging a limited number of anchor nodes whose locations are known. In this paper, we propose a novel algorithm for anchor-based localization in a static network, which improves the localization accuracy while reducing the computational complexity compared to existing methods. Our algorithm uses a range-based approach to estimate the distances …
Published in International Journal of Wireless Security and Networks · Vol. 1, Issue 1, 2023 · pp. 12–20 Read article
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Dynamic Traffic Control System with Emergency Vehicle Detection
Abstract: The project's goal is to create a density-based dynamic traffic light system in which the timing of the signal changes autonomously based on the density of traffic at any given junction. Traffic congestion is a major issue in most places around the globe, so it is time to transition from a more manual or set timer method to an automatic system with decision-making capabilities. The current traffic signaling system is …
Published in Journal of Microcontroller Engineering and Applications · Vol. 11, Issue 1, 2024 Read article
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Fabrication, Numerical Simulation and Compact Modeling of Ph-BTBT-C10 Organic Thin Film Transistor
Abstract: Flexible and cost-effective electronics have been necessitated by the advent of organic thin-film transistors (OTFTs). This study aims to study the performance of OTFT using a 2-decyl-7-phenyl-[1]benzothieno[3,2-b][1]benzothiophene (Ph-BTBT-C10) organic semiconductor. The paper also explore accurate device modeling for technology optimization and circuit design that supports device improvement. This research includes device fabrication, numerical simulation using TCAD, compact modeling, and parameter extraction. By combining temperature-dependent bandgap narrowing with existing theories, this …
Published in Journal of Polymer & Composites · Vol. 12, Issue 5, 2024 · pp. 1–18 Read article
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Whispers of the Microbial World: Unveiling Bacterial Dialogues through Quorum Sensing
Abstract: Quorum sensing is a special way of bacteria by which they can regulate their own gene expression as per the population density of the bacteria. It is basically a type of cell-to-cell communication pathway used by the microbes. The signal molecule which helps in this mechanism are called auto inducer(AI). As the mechanism depends by changes in the cell density, so when the cell density reaches to the threshold cell …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 14, Issue 3, 2024 · pp. 1–8 Read article
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Effect of Pigment Particle Size of Offset Inks on Printability
Abstract: The pigment is the most expensive part of printing inks. The process of making ink involves physical processes that require even distribution of pigments in the surrounding vehicle. This process is known as "Dispersion". The quality of the final dispersion decides print parameters like dot gain, density, print contrast, and gloss. In this work, the aim was to study how the ink behaves on the printing press based on the …
Published in Journal of Polymer & Composites · Vol. 12, Issue 5, 2024 · pp. 275–283 Read article
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Rethinking Urban Design: Architectural Approaches to Walkability and Sprawl
Abstract: As cities stretch their concrete fingers across the landscape, architecture stands as both the problem and the solution. Like a master chess player, thoughtful architecture can reshape urban spaces, transforming car-centric sprawl into pedestrian-friendly havens. By crafting inviting streetscapes and mixed-use developments, architects weave a tapestry of walkable neighborhoods that pulse with life and connection. Streetscapes designed with wide sidewalks, pedestrian crossings, green spaces, and appropriate lighting further enhance the …
Published in International Journal of Urban Design and Development · Vol. 3, Issue 1, 2025 · pp. 25–33 Read article
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Combustion Characteristics of Waterlily (Nymphaea lotus Linn.) Briquettes
Abstract: The effect of binder types (bananas, yams, and cassava) and binders proportion on thermal properties of waterlily (Nymphaea lotus Linn.) briquettes were investigated. Peels from bananas, yams, and cassava were collected from agro processing cottage industry. The peels were washed, sun-dried, and ground using a disk mill and Tyler sieves to a particle sizes of 0.50 mm. The waterlily plants were collected from the river using a drag net, sun-dried, …
Published in Journal of Petroleum Engineering & Technology · Vol. 15, Issue 2, 2025 · pp. 12–21 Read article
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Design, Synthesis, and Spectroscopic Elucidation of 3-Methyl-1-Phenylpyrazol-5-One: A Cheminformatics-Aided Approach to Heterocyclic Drug Scaffolds
Abstract: Pyrazolone, a notable heterocyclic compound, has drawn increasing interest due to its broad pharmacological profile and structural versatility. The synthesis, characterisation, and biological assessment of new pyrazolone derivatives are examined in this work. A comprehensive review of existing synthetic strategies is presented, emphasizing green and efficient methodologies. Novel derivatives were synthesized using varied starting materials and catalytic systems, followed by structural confirmation through spectroscopic analyses, including NMR, IR, and mass …
Published in International Journal of Cheminformatics · Vol. 3, Issue 1, 2025 · pp. 29–40 Read article
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Optimizing Green Composites for Automotive Applications Using Taguchi-Based Grey Relational Analysis
Abstract: The increasing demand for sustainable and lightweight materials in the automotive industry has driven the exploration of green composites as an alternative to conventional synthetic composites. This study focuses on optimizing the mechanical properties of green composites using Taguchi-based Grey Relational Analysis. Four natural fibers—pineapple, sisal, coir, and Nava—were reinforced with cashew resin and synthetic resin matrices, incorporating silica and granite fillers of varying sizes. Key properties, including hardness, impact …
Published in Journal of Polymer & Composites · Vol. 13, Issue 5, 2025 · pp. 743–754 Read article
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A Comprehensive Review of Compressed-Air Vehicles: A Technological Advancement Towards Sustainable Development
Abstract: Greenhouse gas emissions have become an essential environmental issue with far-reaching effects on ecosystems and societies worldwide. Around 20-30% of air pollution is caused by harmful gas emissions, mostly by automotive vehicles. The consumption of fossil fuels in vehicles and other utilities is responsible for the depletion of natural resources. The excessive use of fossil fuels has increased energy costs and intensified competition for different resources, posing economic issues in …
Published in Journal of Polymer & Composites · Vol. 13, Issue 5, 2025 · pp. 567–588 Read article
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Performance and Structural Analysis of Different Lithium-Ion Battery Chemistries for Electric Vehicle Applications
Abstract: Lithium-ion batteries (LIBs) stand at the forefront of electric vehicle (EV) technology and have become a driving force behind the development of advanced energy storage systems. In this study, performance and structural analysis of different lithium-ion battery (LIB) chemistries—namely Lithium Nickel Manganese Cobalt Oxide (NMC), Lithium Iron Phosphate (LFP), Lithium Cobalt Oxide (LCO) and Lithium Nickel Cobalt Aluminum Oxide (NCA)—is presented. The study explores important performance parameters like energy density, …
Published in International Journal of Advanced Robotics and Automation Technology · Vol. 3, Issue 2, 2025 · pp. 13–31 Read article
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Design and Mathematical Quantification of a Compressed-Air Vehicle
Abstract: Compressed-air technology is emerging as a promising alternative mode of transportation, offering significant advantages over conventional fuel-operated vehicles. Unlike fossil fuel systems, compressed-air propulsion produces no direct emissions, making it an eco-friendly solution to rising concerns about air pollution and environmental degradation. Owing to its sustainability potential, this technology has attracted considerable attention from researchers, engineers, and energy enthusiasts worldwide, who have conducted extensive studies to improve its efficiency, feasibility, …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 1026–1035 Read article
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Investigation on The Effect of Carbon Fiber Reinforcement on The Mechanical and Physical Properties of FDM 3d Printed PLA
Abstract: In this work, the effects of annealing on the physical properties and mechanical behavior of short-carbon-fiber-reinforced polylactic acid (CF/PLA) composites made using fused deposition modeling (FDM) are systematically investigated. Pristine PLA and CF/PLA composites with 10% fibers have been made and evaluated in accordance with ASTM standards. Tensile, bending, and hardness tests were used to evaluate the performance of as-received and annealed composites. The tensile and hardness properties of PLA …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 284–298 Read article
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Estimating Heavy Ion Concentrations in the Shatt AlKufa Area and Studying Methods for Recycling Wastewater
Abstract: This study includes practical methods for treating chemical pollution in wastewater. The proper disposal of wastewater is essential for providing a healthy environment for communities, adhering to international standards and utilizing the latest chemical and scientific methods to maintain a surrounding environment free from sewage pollutants. The goal of wastewater treatment is to prepare it for discharge into agricultural drains or for use in irrigation. Treatment removes a large percentage …
Published in Journal of Catalyst & Catalysis · Vol. 13, Issue 1, 2026 · pp. 17–22 Read article
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Influence of SlS Parameters on Strength and Fatigue Durability of Polyamide-12
Abstract: Selective Laser Sintering (SLS), a laser-based polymer powder bed fusion process, has gained prominence in the fabrication of high-performance thermoplastics such as Polyamide-12 (PA12). This paper provides an extensive review of how key SLS process parameters—such as laser power, scan speed, hatch spacing, and energy density—affect the mechanical properties of PA12 components, with a specific focus on tensile strength and fatigue resistance. Studies demonstrate that increasing energy input enhances particle …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 178–191 Read article
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Advancements In Energy Storage Materials Are Overcoming Challenges and Shaping Future Innovations
Abstract: The pursuit of efficient energy storage technologies is critical for advancing renewable energy systems and improving the performance of electric vehicles. This review emphasizes the synergistic contributions of polymers and composite materials in phase change materials (PCMs), zinc-based batteries (ZnBs), lithium-ion batteries (LIBs), and graphene-based systems. PCMs, particularly polymer-encapsulated and polymer-stabilized composites, demonstrate a remarkable ability to store and release thermal energy, enabling improved thermal management and operational stability. In …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 704–723 Read article
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Assessing the Influence of Aggregates and Cement Type on the Properties of Roller-compacted Concrete
Abstract: Roller-compacted concrete (RCC) pavement is suitable for heavy traffic and harsh environment. In the present investigation, RCC slab samples have been prepared using two types of aggregates (crushed and rounded), and two types of cement binder (ordinary Portland and sulphate resistant). Cubes and beam specimens have been extracted from the slab samples with the aid of diamond saw. Specimens were tested for bulk density, ultrasound pulse velocity, compressive and flexural …
Published in Trends in Transport Engineering and Applications Read article
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Design and Performance Analysis of Sustainable Hybrid Composites for Impact Absorption and Lightweight Applications.
Abstract: This study explores the mechanical and structural properties of a novel hybrid composite composed of recycled tyre rubber, ceramics, and wood. The investigation focuses on key parameters, including energy absorption, compressive and tensile strength, and density, to evaluate the composite's suitability for diverse applications. The impact energy absorption test revealed that Sample A, comprising 50% rubber, 25% ceramic, and 25% wood, exhibited the highest energy absorption capability, with an average …
Published in Journal of Polymer & Composites · Vol. 13, Issue 2, 2025 · pp. 95–104 Read article
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Performance Evaluation of Tympanostomus Fuscatus (Periwinkle) Shell Powder as Alternative to Silica Flour in High Temperature Well Cementing Operation
Abstract: The effect of high temperature on cement slurry is a problem in the oil and gas drilling industry. Over the years, silica flour was used to prevent the strength of cement that results from high temperature effect. But, the silica flour is imported and not environmentally friendly. Hence, the need for local material that can serve as alternative becomes imperative. periwinkle shell (Tympanostomus fuscatus) was tested in the laboratory to …
Published in Journal of Petroleum Engineering & Technology · Vol. 15, Issue 2, 2025 · pp. 1–11 Read article