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686 articles for “zones”
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An Overview of New Coastal Research Vessel (N-CRV) Dry Dock and Construction
Abstract: A New Coastal Research Vessel (N-CRV) is a specialized ship designed for scientific research in fields like oceanography, geology, biology, and atmospheric studies, equipped with specific facilities and accommodations for sea missions. This paper discusses the coastal research ship dry-dock, construction, and design process, which involves three stages: concept, preliminary, and contract design. N-CRV must utilize scientific cruise, Exclusive Economic Zone (EEZ) survey, deployment, data collection, and seawater sample collection …
Published in Journal of Offshore Structure and Technology · Vol. 11, Issue 3, 2024 · pp. 1–11 Read article
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Heat Transfer by Arc Welding for A Similar Material Joint
Abstract: Electric arc welding (EAW) is a traditional fabrication process used in wider domestic, commercial and industrial application. Welding is a joining of two materials with the application of heat at the molecular level with the application of heat and pressure. Many materials used for welding application for different joining process. Maraging steel is special steel used for production of different air-craft components. Maraging material is used for heavy tools, producing …
Published in Journal of Materials & Metallurgical Engineering · Vol. 15, Issue 2, 2025 · pp. 1–13 Read article
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Assessment of Noise Pollution Level in Port Harcourt City: a Location Based Comparative Study
Abstract: Noise pollution has emerged as a significant environmental health concern in urban centers, particularly in rapidly developing cities like Port Harcourt, Nigeria. This study presents a comprehensive, location-based comparative assessment of ambient noise levels across selected zones within Port Harcourt metropolis, including residential, commercial, industrial, and traffic-dense areas. Sound level measurements were conducted in the different areas of Port-Harcourt metropolis. High-density and low-density residential neighborhoods, busy roadways, business centers, road …
Published in International Journal of Environmental Noise and Pollution Control · Vol. 3, Issue 2, 2025 · pp. 7–17 Read article
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Host Plant Affinity and Trophic Behavior of Lohita grandis name of author (Hemiptera: Largidae)
Abstract: Lohita grandis (Gray) , commonly known as the red cotton bug, is an emerging pest of cotton and several other economically important crops in India. Its sap-sucking feeding habit causes discoloration of fruits, reduction in seed quality, and yield losses, posing serious challenges to sustainable agriculture. The present study investigates the feeding behaviour and host plant preferences of L. grandis across diverse agroclimatic zones of India, with the aim of …
Published in Research & Reviews : Journal of Agricultural Science and Technology · Vol. 15, Issue 1, 2026 · pp. 92–100 Read article
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Damage Evolution and Delamination Resistance in Polymer Matrix Functionally Graded Laminates
Abstract: Functionally graded laminates (FGLs) in polymer-matrix systems represent a promising pathway to enhance damage tolerance and delay delamination in advanced structural composites. In this study, we explore the mechanisms of damage initiation, propagation, and delamination resistance in polymer matrix functionally graded laminates (PM-FGLs) through a combined experimental–computational approach. Laminates with linear, exponential, and bio-inspired gradation profiles were fabricated using vacuum-assisted resin transfer molding (VARTM) and additive manufacturing techniques. Comprehensive mechanical …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 321–337 Read article
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Polymer-Inspired Underwater Friction Stir Welding of Aluminum–Copper Composite Joints
Abstract: The problem of high-performance dissimilar joints and their compatibility with polymer and composite engineering applications is the impetus to the current work. This paper seeks to investigate the possibility of applying the polymer-based composite ideas with underwater friction stir welding (UWFSW) to improve the performance of AA5083 aluminumcopper joints. To achieve this a systematic experimental method was followed by varying the tool rotational speed, traverse speed and tilt angle and …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 372–383 Read article
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Infectious illnesses in areas of violence and among refugees
Abstract: Infectious illnesses are a huge and ongoing hazard in conflict zones and among refugee populations. This is because frail health systems, population relocation, and poor living conditions all come together to make transmission risks higher. Armed conflict undermines vital public health infrastructure, such as vaccination programs, disease surveillance, water and sanitation systems, and access to medical care, resulting in the resurgence and proliferation of avoidable and treatable illnesses. Refugee camps …
Published in International Journal of Tropical Medicines · Vol. 3, Issue 1, 2026 · pp. 36–40 Read article
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A Review on Hybrid Inorganic–Polymer Analog Nanocomposites Incorporating Pozzolanic Wastes and nano-Additives
Abstract: The recent progress of polymer matrix nanocomposites (PMNCs) reveals that the performance of matrix and filler is at the core of matrix–filler interaction, interfacial bonding, and well-controlled distribution of nanoscale reinforcements. Applying these concepts, we consider inorganic particulate systems as hybrid nanocomposites, in which a discontinuous inorganic matrix is effectively reinforced via synergistic co-incorporation of pozzolanic wastes and nano-additives. In the composite system described above, silica-, alumina-rich pozzolanic materials serve …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 · pp. 131–141 Read article
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Recent Advances in Hybrid Polymer–Cement Composites: Interfacial Engineering, Self-Curing Mechanisms, and Microstructural Performance
Abstract: The increasing demand for high-performance polymer-modified cementitious composites has stimulated extensive research into hybrid self-curing composite systems with engineered aggregate phases. Self-curing hybrid polymer–cement composite systems, using recycled aggregates, constitute one of the solutions proposed by researchers to overcome problems related to moisture loss during the curing process, shrinkage, cracking, and the limited amount of natural aggregate available. This critical review provides an overview of recent developments concerning the production, …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 1323–1332 Read article
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Enhance the Thermal Performance and Fluid Flow Behavior in Micro-Tube Heat Exchangers with Variable Fluid Properties for Cooling Applications
Abstract: This paper focus on the substantial effects of fluid property changes and phase change events, this study provides a comprehensive transient assessment of the heat exchanger's thermal performance and fluid flow behaviour for cooling and dehumidification applications. In response to a step-change perturbation, a dynamic model was created and co-simulated to describe the moist air (shell-side) and the two-phase refrigerant (tube-side), as well as their non-linear interactions. The significant correlation …
Published in Journal of Thermal Engineering and Applications · Vol. 13, Issue 2, 2026 Read article
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Experimental Study on Microstructural Evolution and Tensile Properties of Robotic Pulse MIG Welded Steel
Abstract: Robotic pulse Metal Inert Gas (MIG) welding has emerged as an advanced joining technique capable of producing superior weld quality through precise control of welding parameters. The present study evaluates the influence of welding parameters on the microstructural evolution and tensile properties of steel weldments fabricated using robotic pulse MIG welding and compares the results with conventional pulse MIG welding. Microstructural characterization was carried out using Scanning Electron Microscopy (SEM) …
Published in Journal of Experimental & Applied Mechanics · Vol. 17, Issue 2, 2026 · pp. 40–52 Read article
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A Proposed Coordinate Based Route Selection Technique for MANET
Abstract: Mobile Ad-hoc Network (MANET) is a combination of portable mobile devices or mobile nodes which are communicating with each other without any help of pre-installed base station, infrastructure, centralized administration or access point. Designing and developing a routing protocol for MANET environment is an important issue. While designing a routing protocol, following must be considered: minimizing packet loss, minimizing time delay and minimizing the number of next hop count. Due …
Published in Journal of Mobile Computing, Communications & Mobile Networks · Vol. 1, Issue 3, 2014 · pp. 27–33 Read article
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Effect of Electrode Extension and Width of the Plate on Distortion and Residual Stresses Using Submerged Arc Welding Process
Abstract: Welding is a reliable and efficient joining process in which the coalescence of metals is achieved by fusion and is used extensively in the fabrications of many structures, buildings, ships, pressure vessels, etc., due to many advantages it has, over the other fabrication processes. Localized heating during welding, followed by rapid cooling, can generate residual stresses and distortion. However, distortion is a problem encountered during welding. The presence of distortion …
Published in Trends in Mechanical Engineering & Technology · Vol. 6, Issue 1, 2016 · pp. 23–30 Read article
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Site Suitability Analysis for Reservoirs in Suriyawewa by Using GIS Techniques
Abstract: Normal 0 false false false EN-US X-NONE X-NONE Sri Lanka receives an average rainfall varying regionally from 900 mm to 6000 mm. Due to the unequal rainfall distributions over the island, Sri Lanka is traditionally divided into three climatic zones, namely Wet Zone, Dry Zone, and Intermediate Zone. The Dry Zone of the island which receives less than 1750 mm of average annual rainfall occupies two thirds of the island …
Published in Journal of Remote Sensing & GIS · Vol. 3, Issue 2, 2012 · pp. 60–78 Read article
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Health Disaster Risk Assessment Using GIS and Remote Sensing Techniques: A Case Study of Malaria
Abstract: Malaria, curable and preventable, is a life threatening disease and also can be regarded as a concurrent health disaster. This disease is greatly influenced by environmental factors such as temperature, rainfall, humidity and altitude which affect the survival and longevity of the vector mosquito, and the presence of water bodies which are breeding sites. Advancement in GIS and remote sensing has brought about an improved spatial analysis through the integrated …
Published in Journal of Remote Sensing & GIS · Vol. 7, Issue 2, 2016 · pp. 50–59 Read article
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Analysis of Sedimentation Deposition in Morbe Reservoir by Using RS and GIS
Abstract: The reduce in the storage volume due to sediment deposits in the reservoir at different level over a period of time can be related with the decrease in water diffusion zone at different elevation. This study shows the use of RS and GIS to estimate reservoir sediment deposits. The 2007 original capacity curve of water storage is now used as base for the 2017–18 sediment assessment. The digital processing was …
Published in Journal of Remote Sensing & GIS · Vol. 11, Issue 1, 2020 · pp. 16–26 Read article
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Adaptation Trial of Niger seed (Guizotia abyssinica, Asteraceae) Varieties in Siltie Districts of Southern Ethiopia
Abstract: Niger seed adaptation trial was conducted in two districts of Siltie zone, namely Dalocha and Silti districts during 2013–14 and 2014–15 main cropping seasons to identify adaptable and high yielding niger seed varieties. Five improved varieties and one local variety were used. Randomized Complete Block Design with four replications was used for the experiments. According to the results, location by variety interaction was significant difference observed. In Dalocha district, Ginchi …
Published in Research and Reviews : Journal of Crop science and Technology · Vol. 10, Issue 2, 2021 · pp. 12–15 Read article
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Variability and Association of Characters among Common Bean (Phaseolus Vulgaris L.) Genotypes in Southern Ethiopia
Abstract: This experiment was conducted in Guraghe and Siltie Zones of Southern Ethiopia to assess the extents of variability and associations of characters among common bean genotypes. Data were collected on nine quantitative traits. The analysis of variance revealed significant variation among the traits. Moderate genotypic and phenotypic coefficient of variation was observed for 100 seeds’ weight, pod length and seed per plant. Highest heritability and genetic advances as percent mean …
Published in Research & Reviews : Journal of Botany · Vol. 10, Issue 2, 2021 · pp. 21–27 Read article
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A Medicinal Review of Emblica Officinalis WSR to Botanical Description
Abstract: Emblica Officinalis i.e., Amalaki is among the most important medicinal plant in the ayurvedic material medica. Amalki is explained as Dhatri or Anurse in Classical Ayurvedic Science which means that has the power to restore health like a mother caring for her child. Emblica officinalis has its qualities that have both medicinal and nutritional values. As, it is well known among the richest source of vitamin C, Demand of this …
Published in Research & Reviews : Journal of Botany · Vol. 11, Issue 1, 2022 · pp. 7–12 Read article
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Comparative Seismic Analysis of Multistorey Core in Core Structure Using Beam, Fluid
Abstract: The main objective of this paper is to analyze and study the comparative analysis of multistorey core in core structure with beam, Fluid viscous dampers and bracings using Etabs. Core in core structures, also known as dual core structures, are a structural design concept employed in high-rise buildings to enhance their structural performance and increase resistance to lateral loads such as wind and earthquakes. The concept of core in core …
Published in Journal of Polymer & Composites · Vol. 12, Issue 2, 2024 · pp. 212–223 Read article