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154 articles for “Stress Concentration”
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Optimization of Type-4 Plastic Liner Composite Overwrapped Pressure Vessel Design
Abstract: Composite Overwrapped Pressure Vessels (COPVs) are prominently utilized for the storage of gases at high-pressure. Their widespread adoption is because they are significantly lighter weight compared to complete metal counterparts, but requires specialized design, and manufacturing process. This research employs finite element modelling to analyse the stress and failure assessments on a specific Type-IV COPV with plastic liner as core cylinder. This study aims to optimize COPV design by considering …
Published in Journal of Polymer & Composites · Vol. 13, Issue 3, 2025 · pp. 405–412 Read article
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Enhancing Worker Comfort in High-Heat Environments: A Triangular Bladeless Cooling Fan Approach
Abstract: Workers in high-heat industrial environments frequently encounter thermal stress, fatigue, and dehydration, which significantly impact both productivity and safety. Existing cooling solutions such as pedestal fans, ceiling fans, and central air-cooling systems often fall short due to limited airflow reach, safety concerns from exposed blades, high energy consumption, and poor suitability for dynamic workshop layouts. To address these challenges, this study presents a novel triangular bladeless fan designed specifically for …
Published in Trends in Mechanical Engineering & Technology · Vol. 15, Issue 3, 2025 · pp. 25–31 Read article
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Bearing Capacity of Skirted Ring Footing Resting on Dense Sand Overlying Soft Clay
Abstract: This study determines the ultimate bearing capacity of unskirted/skirted ring footing on dense sand of finite thickness on top of a layer of indefinite extent of soft clay under concentric vertical stress by means of finite element analysis. The thickness of an upper dense sand layer varied between 1 and 4 metres. The upper dense sand layers maintained a friction angle between 40° and 44°. The results indicate that the …
Published in Journal of Geotechnical Engineering · Vol. 10, Issue 1, 2023 · pp. 21–32 Read article
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Rosemary: A Natural Way to Improve Brain Health and Cognitive Function
Abstract: Cognitive decline is a common consequence of aging, often leading to diminished quality of life. Although conventional drug treatments, such as anticholinesterase inhibitors, are available for managing cognitive decline, they are not always effective in older adults and may even induce adverse effects. As a result, there has been growing interest in natural alternatives, particularly traditional herbal medicines, for their potential cognitive-enhancing properties. Among these, Rosmarinus officinalis (Rosemary) has gained …
Published in International Journal of Brain Sciences · Vol. 2, Issue 1, 2025 · pp. 30–36 Read article
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Effect of Salicylic Acid on Biochemical Traits in Two Cultivars of Soybean under Salt Stress
Abstract: AbstractSoybean is considered to be moderately salt sensitive species and is affected by salinity condition in terms of growth and yield. Among the abiotic stress, salinity is one of the serious agricultural problems worldwide which reduces field production. Foliar feeding of plants can effectively improve plant growth and productivity and is known to be more effective than soil application. Salicylic acid (SA) is a naturally occurring plant growth regulator which …
Published in Research & Reviews : Journal of Botany · Vol. 5, Issue 2, 2016 · pp. 9–18 Read article
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Study of Electrically Conductive Polymer for Antistatic and Sensor Application
Abstract: Electrically conductive polymers (ECPs) are a unique category of smart materials that integrate the mechanical flexibility and ease of processing characteristic of conventional polymers with the electrical conductivity typically associated with metals or semiconductors. In recent years, they have attracted considerable interest due to their promising potential in advanced technological applications, especially in antistatic coatings and electronic sensing devices. The unique ability of these polymers to conduct electricity arises from …
Published in International Journal of Minerals · Vol. 3, Issue 1, 2026 · pp. 46–51 Read article
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Effect of NaCl Stress on Seedlings Growth and Biochemical Changes of Soybean (Glysin max) Co-3
Abstract: Present study was investigated the effect of NaCl stress on seed germination, pigments content, protein and proline content of soybean (Glycine max L.). The soybean plant was exposed to increasing concentrations of 0, 50, 100 and 150 mM NaCl salt stress. The 7th day old plant was exposed to salt stress. The results indicated that increasing concentrations of NaCl salt solution showed decrease in the percentage of germination, pigments concentration, …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 4, Issue 2, 2014 · pp. 13–16 Read article
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The Effect of Salt Stress and Selenium on Some Morphological and Flowering Traits of Petunia Plants ( Petunia hybrida L.)
Abstract: This study carried out in one of the nurseries of Kufa city/Iraq during the winter season of 2024 to study the effect of salt stress caused by sodium chloride at concentrations (0, 25, 50) mmol and foliar spraying with selenium at concentrations (0, 10, 20) mg.L-1 and the effect of the study factors on some growth and flowering traits and the percentage of nitrogen, phosphorus and potassium as well as …
Published in Research & Reviews : Journal of Botany · Vol. 14, Issue 3, 2025 · pp. 29–37 Read article
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Eugenol Prevents Sodium Nitrate-induced Altered Antioxidant Status of Spermatozoa: An In Vitro Study
Abstract: Background: High level of nitrate (NO3) induces oxidative stress which affects the male and female reproductive system. In this regard, there is a great concern for the prevention of NO3-induced oxidative stress in the reproductive system by using herbal products. Eugenol is one such natural product found in clove extracted from cloves (Syzygium aromaticum) and is known for its antioxidant, anti-nociceptive, anti-inflammatory, and anti-apoptotic properties. Aim and Objectives: The present …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 12, Issue 2, 2022 · pp. 1–8 Read article
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Evaluation of Heavy Metal Bioaccumulation by Phytoplankton and Water, Sombriero River, Port Harcourt
Abstract: The heavy metal bioaccumulation by phytoplankton and water in Sombriero River, Port Harcourt was determined. Heavy metals and phytoplankton samples were collected from four different locations using plastic bottles and plankton net of 55um mesh size between February and April,2020. Plankton and water samples collected from the locations were analyzed for phytoplankton and concentration of the five heavy metals, iron (Fe), copper (Cu), cadmium (Cd), lead (Pb) and chromium (Cr) …
Published in Research & Reviews : Journal of Ecology · Vol. 11, Issue 2, 2022 · pp. 16–23 Read article
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Foliar Application of Zinc Nanoparticles Improves Photosynthetic Performance in Wheat Plants
Abstract: The present study investigated the impact of foliar spray of zinc oxide nanoparticles on physiological and biochemical reactions in wheat (Triticum aestivum L.) Foliar spray with zinc oxide nanoparticles at 10 mg/l positively increased pigment content and biomass in comparison to control while a significant reduction in chlorophyll content and biomass accumulation was observed at higher concentration of 1000 mg/l. A study of Chlorophyll a fluorescence parameters at 10 mg/l …
Published in Research and Reviews : A Journal of Biotechnology · Vol. 13, Issue 4, 2023 · pp. 12–23 Read article
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The Quicklift: Redefining Car Jack Dynamics & Design
Abstract: A Jack is a tool that aids in raising the vehicles without considerable physical efforts and thereby reducing strain injuries. This paper is about designed model of Jack and performing the static analysis (viz:structural) with the help of Solid works software. The outcomes obtained demonstrates that jack can be used safely. Additional improvements to be made in the jack is by modifying the vertical cylindrical bar so that it can …
Published in Trends in Machine design · Vol. 13, Issue 1, 2026 · pp. 86–92 Read article
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Study of benefits and drawbacks of tea
Abstract: Tea is a soft beverage allowed under specifications from World Health Organization (WHO). Over dosage of tea create oxidative stress and liver toxicity at certain concentrations. Patients’ specific speculations prohibit ingestion those deficits procured from vitamin K. This is logical to treat any dosage within standards of intake. In case of alterations in any dose may devoid health benefits like prevention of cancer and cardiovascular diseases, anti-inflammatory, anti-arthritic, anti-bacterial, anti-angiogenic, …
Published in Research & Reviews : Journal of Botany · Vol. 10, Issue 1, 2021 · pp. 1–3 Read article
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Factors Affecting Shear Stress on Tablet Hardness and Disintegration
Abstract: The quality and effectiveness of pharmaceutical tablets depend heavily on several factors influencing shear stress on tablet hardness and disintegration. These factors include formulation composition, wherein the selection and concentration of excipients and active ingredients affect how the tablet material responds to shear stress. Additionally, the compression force, speed, and duration during tablet compression are critical, impacting tablet hardness and disintegration properties. Tablet geometry and design, along with tablet press …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 15, Issue 2, 2024 · pp. 1–19 Read article
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Role of biosynthesized Copper nanoparticles in Agriculture and other fields
Abstract: In the last decades, nanotechnology has emerged as a new field of technology because of its unique qualities. The use of chemicals in medicines and agriculture such as fertilizers, pesticides, herbicides, and insecticides are very harmful to the environment so by the use of this revolutionary technology we can reduce the toxic effects on the environment. However, a biological method is very easy, simple, and free from any chemical hazards, …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 14, Issue 2, 2024 · pp. 39–53 Read article
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Effects of Chlorpyrifos as Inducer for Oxidative Stress in Liver, Kidney and Spleen of Freshwater Fish, Pseudetroplus maculatus (Bloch, 1795)
Abstract: Chlorpyrifos is one of the most common organophosphate insecticides found abundantly in freshwater ecosystems and has been detected in agricultural and fishery products worldwide. The study focused to determine the effect of chlorpyrifos on the induction of oxidative stress in freshwater fish Pseudetroplus maculatus. Fish were exposed to sublethal concentrations (0.661 and 1.32 μg/l) of chlorpyrifos for 15 and 30 days. Activities of antioxidant enzymes and the levels of hydrogen …
Published in Research and Reviews: A Journal of Toxicology · Vol. 8, Issue 1, 2018 · pp. 20–29 Read article
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Cylindrical Bending of Shear Flexible Plates Using Trigonometric Shear Deformation Theory
Abstract: A trigonometric shear deformation theory for cylindrical bending of shear flexible plates taking into account transverse shear deformation effect is developed. The displacement field of the theory uses sinusoidal function in terms of thickness coordinate to include shear deformation effects. It has only two variables. It is to be noted that the present theory satisfies the constitutive relations in respect of transverse shear strain and stress. The transverse shear stress …
Published in Journal of Experimental & Applied Mechanics · Vol. 3, Issue 2-3, 2012 · pp. 1–11 Read article
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Zero-Concentrate Feeding in Dairy Cows: A Sustainable Approach to Milk Quality, Animal Health, and Welfare
Abstract: The study explores the benefits of eliminating concentrate feeds in dairy cow nutrition. As sustainability becomes a central concern in agriculture, zero-concentrate feeding offers a promising solution to reduce the environmental footprint of dairy farming while promoting optimal animal health and welfare. This approach primarily focuses on maximizing the use of high-quality forages, such as grasses and legumes, to meet the nutritional needs of dairy cows. By minimizing the use …
Published in Research and Reviews : Journal of Dairy Science and Technology · Vol. 15, Issue 1, 2026 · pp. 30–47 Read article
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Flexure and vibration of thick beams using trigonometric shear deformation theory
Abstract: A trigonometric shear deformation theory is used for flexural analysis of thick beams, taking into account transverse shear deformation effect. The theory accounts for cosine distribution of transverse shear strain through the thickness of the beam. The governing differential equations and boundary conditions are obtained by using the principle of virtual work. The general solutions for the transverse displacement and rotation are presented for transversely loaded beams. The solutions for …
Published in Journal of Experimental & Applied Mechanics · Vol. 1, Issue 1, 2010 · pp. 1–27 Read article
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Sublethal Toxic Effect of Paraquat Dichloride on Tissue Biochemical Markers in Labeo rohita
Abstract: The present study investigated the sublethal toxic effect of the commercial grade herbicide, Paraquat dichloride (24% SL), on Labeo rohita stressing the importance on biochemical parameters. Fishes were exposed to the sublethal concentrations of paraquat dichloride (5 μg/l and 10 μg/l) for 24 h in treated groups. Treated groups showed highly changed biochemical parameters on their exposure to the herbicide paraquat, when compared to the control. Tissues such as brain, …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 11, Issue 2, 2021 · pp. 20–28 Read article