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221 articles for “temperature variation”
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In Plane Oriented Strontium Ferrite Thin Films Described by Spin Reorientation
Abstract: For the first time, in plane orientation of magnetic easy axis of sputtered strontium hexaferrite thin films has been explained using modified Heisenberg Hamiltonian model with stress induced anisotropy term. The variation of average value of in plane spin component with temperature was plotted in order to determine the temperature at which easy axis is oriented in the plane of the strontium ferrite film. The average value of in plane …
Published in Research & Reviews : Journal of Physics · Vol. 2, Issue 2, 2013 · pp. 12–16 Read article
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Thermal Gradient Effect on Frequencies of a Rectangular Plate of Varying Thickness in Both Directions
Abstract: An analysis and numerical results are presented for frequencies of rectangular plates of non-linear thickness variation in x-direction and linearly in y-direction with linearly temperature distribution on the basis of classical plate theory. An approximate but quiet convenient frequency equation is derived by using Rayleigh-Ritz technique with a two term deflection function. Effect of the thermal gradient together with taper constants on the natural frequencies of vibration a clamped rectangular …
Published in Journal of Experimental & Applied Mechanics · Vol. 4, Issue 1, 2013 · pp. 15–20 Read article
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Experimental Investigation of Combine Effect of Welding Speed, Tool Pin Profiles and Preheat Temperature on Mechanical Properties of Friction Stir Welded AA6061-T6 Joint based on Response Surface Methodology
Abstract: Two similar of dissimilar material can be joined by Friction stir welding (FSW) in solid state. Friction stir welded joint can be made by using non-consumable tool with rotary and transverse motion with intimate contact to material to be welded. These experimental investigations was carried out by taking different FSW parameters tool rotation speed, tool travel speed, tool pin profile and preheat temperature to find out its effect on mechanical …
Published in Trends in Machine design · Vol. 4, Issue 2, 2017 · pp. 15–24 Read article
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Effects of Specific Heat Ratio and Cut-off Ratio on the Performance of an Irreversible Dual Cycle
Abstract: This study is aimed to investigate the effects of specific heat ratio and cut-off ratio on the Dual cycle performance. The variation in the power output and thermal efficiency with compression ratio, peak temperature of the cycle, specific heat ratio and cut-off ratio are presented. The result shows that with decrease in compression ratio up to a value, the increase in specific ratio lowers specific work output and increases efficiency …
Published in Trends in Mechanical Engineering & Technology · Vol. 2, Issue 1, 2012 · pp. 1–6 Read article
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Dielectric Constant/Dielectric Loss Measurements in Vectra-A, Liquid Crystal Copolyester
Abstract: The most significant advantage of studying the charge storage mechanism of Vectra-A, Liquid Crystal Copolyester through Dielectric Spectroscopy (DS) is their complex structure, which can be physically or chemically tailored for specific applications which make it suitable for charge storing devices like Micro-Electro-Mechanical Systems (MEMS). The variation of dielectric constant (ε') and dielectric loss (ε'') in the temperature interval (25 oC to 250 oC) for pristine samples of Vectra-A at …
Published in Research & Reviews : Journal of Physics · Vol. 7, Issue 2, 2018 · pp. 84–87 Read article
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Effect of Bi2O3 Content and Sintering Temperature on the Frequency-Dependent Magnetic Properties of Nanosized Barium Hexaferrite
Abstract: The magnetic properties of commercially available nanosized barium hexaferrite (BaFe12O19) are studied. The particles were characterized using X-ray diffraction (XRD), vibrating sample magnetometer (VSM), and high-frequency magnetic measurements. The frequency-dependent magnetic properties viz. complex permeability and loss tangent were analyzed within the 10 MHz to 1 GHz range. Variations in complex magnetic permeability and loss tangent were discussed under varying sintering parameters such as temperature and sintering aid content. The …
Published in Journal of Polymer & Composites · Vol. 13, Issue 5, 2025 · pp. 107–113 Read article
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A Study on the Sintering Behavior of Al2O3/Y2O3 Doped ZrO2 Composites
Abstract: AbstractZirconia ceramics are widely used as cutting tools due to their very high hardness, excellent fracture toughness, flexural strength, and wear-resistance properties. Tetragonal zirconia exhibits better mechanical properties due to the transformation toughening of zirconia. The superior mechanical properties in zirconia are mainly due to higher density and controlled microstructure. In the present work, an attempt has been made to prepare near full-dense zirconia bodies with controlled microstructure by optimizing …
Published in Journal of Polymer & Composites · Vol. 2, Issue 1, 2023 · pp. 1–8 Read article
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Hydraulic and Thermal Performances of a Counter-Flow Heat Exchanger with Fins
Abstract: Computational analysis has been conducted to examine the flow and heat transfer characteristics in a two-dimensional iso-thermal-fluxed circular-duct fitted with fins. The computations are based on finite volume methods employed with the simple algorithm. Paper reports are based on the computational fluid dynamics (CFD) modelling studies on laminar flow heat transfer, friction factor and thermal performance of a counter-flow heat exchanger equipped with two types of tube insert, one including …
Published in Journal of Thermal Engineering and Applications · Vol. 2, Issue 3, 2015 · pp. 14–20 Read article
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Modeling and Simulation of Feed Forward Temperature Controller with Effect of Higher Gain on Chemical Reactors Heat Exchangers
Abstract: Chemical reactors are widely used in pharmaceutical process industries. The temperature controller design is an essential part of heat exchangers (HE) design for such reactors. The goal of this research is to design and validate the Feed Forward (FF) temperature compensator for the stared tank chemical rectors. The aim is to analyze the impact of high turbulence (Gain) performance on step response. For temperature management, a transfer function (TF) control …
Published in Journal of Thermal Engineering and Applications · Vol. 12, Issue 1, 2025 · pp. 30–40 Read article
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Enhancing Machinability in the Heat Treatment of Inconel 718: A Comprehensive Review
Abstract: The increasing need for materials with high strength and heat resistance, particularly in aerospace applications, creates machining issues. These materials are generally difficult to machine because to their strong wear resistance, abrasion resistance, and low heat conductivity. This produces strong cutting forces and temperatures, resulting in a limited tool life. variances in the microstructures of various materials can induce variations in machinability due to variances in chemical composition, casting, forging …
Published in International Journal of Energy and Thermal Applications · Vol. 2, Issue 1, 2024 · pp. 9–20 Read article
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Arabidopsis thaliana. (L.) Heynh Multifunctional Sensor Proteins and Signaling Networks Plant Photoreceptors
Abstract: Light is a crucial environmental cue for the growth and development of plants as well as the production of photosynthetic energy. In order to recognize and process information from incoming light, plants employ sophisticated mechanisms. With the model plant Arabidopsis thaliana, five different types of photoreceptors have been found. (L.) Heynh Photoreceptors play a specialized and/or recurring role in fine-tuning many aspects of the plant's life cycle. Unlike mobile animals, …
Published in International Journal of Photochemistry and Photochemical Research · Vol. 1, Issue 2, 2023 · pp. 08–24 Read article
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Kinetic Parameters of Corrosion Rate constant for Water-Based Plants for the Inhibition of Metal in Acidic Medium
Abstract: Kinetic parameters of metal inhibition in acidic medium in the presence of water-based plant extracts to monitor corrosion rate characteristics was investigated in this research. The two water-based plasts used are pnematopteris pennigera (GF) and selaginella myosurus (SM) and the mild steel was immersed into the extracts and 1.0M of hydrochloride acid was added to monitor the rate of metal sample corrosion of the analytical grade (raw) HCl (87.3mls) in …
Published in Emerging Trends in Chemical Engineering · Vol. 10, Issue 1, 2023 · pp. 21–35 Read article
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Physiochemical and Microbiological Analysis of Drinking Water from Public Places of Bhimdatta Municipality
Abstract: People on globe are under tremendous threat due to undesired changes in the physical, chemical and biological characteristics of air, water and soil. Due to increased human population, industrialization, use of fertilizers and man-made activity water is highly polluted with different harmful contaminants. Diseases caused by contaminated drinking water and poor hygiene practice are the leading cause of death among human population worldwide. In order to understand the quality of …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 11, Issue 1, 2021 · pp. 18–24 Read article
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MHD-Assisted Flow Regulation of Viscoelastic Polymer Fluids for Industrial Cooling and Composite Fabrication with Isotherml Plates
Abstract: This study investigates the magnetohydrodynamic (MHD) regulation of viscoelastic polymer fluid flow over a permeable plate, emphasizing its relevance to industrial cooling and composite fabrication. An incompressible, electrically conducting viscoelastic fluid is analyzed under a transverse magnetic field with Hall and ion-slip effects to capture electromagnetic alterations in polymer transport. The governing non-dimensional equations for momentum, temperature, and concentration are solved analytically using the perturbation method. The results show that …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 851–866 Read article
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IoT-Enabled Multi-Sensor Accident Detection and Automatic Rescue Alert System
Abstract: Road accidents and vehicle instability caused by skidding, engine overheating, and improper braking behavior remain major concerns in modern transportation systems. This project presents an intelligent vehicle safety and accident detection system that integrates multiple sensors and control logic to enhance driving safety and reduce accident severity. A vibration sensor is employed to detect collision or impact events and accurately identify vehicle accidents. An accelerometer sensor is used for real-time …
Published in International Journal of Electrical and Communication Engineering Technology · Vol. 4, Issue 1, 2026 · pp. 9–19 Read article
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A Synthesized Effect of Urban Modification and Net Radiation on the Climate of Lagos Metropolis, Nigeria
Abstract: Land cover adjustment which includes urban landscaping, agriculture crops or hardscapes forconstructing and parking lots promote variations in the energy and radiation balance. Due tothe above listed modifications, the surface temperatures and near-surface air temperatures overurban patches are generally higher than those over rural areas, thus resulting in an Urban HeatIsland (UHI). In this study, urban landscape and Land Surface Temperature (LST), netradiation, and Normalized Difference Vegetation Index (NDVI) data …
Published in Journal of Nuclear Engineering & Technology · Vol. 10, Issue 3, 2020 · pp. 9–28 Read article
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A Review on Removal of Heavy Metal from Polluted Water using Low Cost Bio-adsorbent
Abstract: ABSTRACTThis review paper presents the performance of natural low cost bio-adsorbent used for the removal of heavy metals from polluted water. The current study focuses on various natural low cost bio-absorbents such as native algae, papaya peel, bone powder, Nile rose plant, natural clayey, rice straw, rice bran, rice husk, coconut shell, Neem leaves, hyacinth roots, powder of heartwood, Moringa oleifera bark an agricultural solid waste, resin of mimosa tannin, …
Published in Journal of Water Pollution & Purification Research · Vol. 5, Issue 1, 2018 · pp. 1–8 Read article
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Modeling the Variation in Specific Heat of Phase Change Materials during Phase Transition
Abstract: Specific heat of phase change materials varies significantly during phase transition. Accurate knowledge of variation in specific heat is vital for proper numerical simulation of heat transfer in such materials. Specific heat of phase change material (PCM) during phase transition has been modeled as delta, triangular and Gaussian function by researchers. In the present work, variation of specific heat is presented in the form of Fourier series. Fourier coefficients are …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 7, Issue 2, 2016 · pp. 28–33 Read article
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Mn Doping–Induced Enhancement of Ethanol Gas Sensitivity in CuO/Cu₂O/Cu Composites
Abstract: A composite of CuO/Cu2O/Cu was synthesized by heating cupric acetate up to 600 °C for 2 hours in air. The properties of pure CuO films and CuO/Cu2O/Cu films were compared. Films were fabricated by the doctor blade method. Polyethylene glycol was used as a binder to prepare films. Mn was doped to composite to enhance the gas sensing properties. Compositions of Mn doped samples were confirmed using XRFS. According to …
Published in Journal of Materials & Metallurgical Engineering · Vol. 16, Issue 1, 2026 · pp. 52–61 Read article
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Seasonal Variations in the Limnochemical Characteristics of An Ox-bow Lake of Eastern Himalayan River of Assam, India
Abstract: The present study was carried out to assess the physicochemical properties of Kalpani beel an ox-bow lake formed by the River Manas, a tributary originated in Bhutan of Eastern Himalayan Biodiversity hotspot. The study was conducted at four selected sites namely i.e. Monakocha (Station-1), Goraimari (Station-2), Bishpani (Station-3) and Bedlangkhaiti (Station-4). Twelve parameters were monitored for a period of one year to assess the standard of water quality of this …
Published in Research & Reviews : Journal of Ecology · Vol. 6, Issue 3, 2017 · pp. 11–18 Read article