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1991 articles for “Temper” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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The thermodynamic studies of 6-(4-chlorophenyl)-1, 2, 3, 4-tetrahydro-2,4-dioxopyrimidine-5-carbonitrile in 60% DMSO in the temperature range 298 to 313 K
Abstract: Densities and viscosities of 6-(4-chlorophenyl)-1, 2, 3, 4-tetrahydro-2,4-dioxopyrimidine-5-carbonitrile have been measured at different concentration in 60% dimethyl sulphoxide (DMSO) in the temperature range 298 to 313 K. The John-Dole equation was used to determine the viscosity. Gibb’s free energy (∆G), entropy change (∆S) and enthalpy change (∆H) were evaluated from relative viscosity . The negative sign of ∆G and ∆H and positive sign of ∆S indicates the spontaneity of reaction …
Published in Journal of Polymer & Composites · Vol. 8, Issue 2, 2020 · pp. 78–81 Read article
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Enhanced Room-Temperature Gas Sensing Performance of 2% Mn-Doped Sri Lankan Natural Graphite Thin-Film Sensors for Ammonia, Acetone, and Ethanol vapors Detection
Abstract: The development of room-temperature gas sensors with high sensitivity, fast response, and low-cost remains a critical challenge for environmental monitoring and safety applications. In this work, we report the fabrication and characterization of a 2% Mn-doped Sri Lankan natural graphite thin-film sensor for the detection of ammonia (NH3), ethanol (C2H5OH), and acetone (C3H6O) vapors under ambient conditions. The sensor was prepared using the doctor-blade coating method on Indium Tin Oxide …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 13, Issue 2, 2026 · pp. 39–49 Read article
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Fabrication of Nanocrystalline Fe2Mn2Ni2Zn2O11 at Different Calcination Temperatures and Its Analysis
Abstract: The superconducting nanocrystalline ceramic powder Fe2Mn2Ni2Zn2O11 was designed and fabricated by a high-temperature special furnace. In the area of ceramic superconductors, particle size is an important factor. Here the authors analyzed the particle size and strain of the nanocrystalline ceramic super conducting material. The sample was analyzed by X-ray Diffraction (XRD), particle size determination, SEM and EDX. The comparison of XRD results with JCPDS files confirmed the orthorhombic structure of …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 16, Issue 3, 2014 · pp. 8–15 Read article
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Volumetric and Viscometric Studies of Molecular Interactions in Binary Mixtures of Butylamine and Iso-butylamine with 1-decanol at Different Temperatures
Abstract: Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 The increasing use of alkylamine and alkanol in various chemical and industrial processes encouraged investigation on the thermodynamic and transporting properties of alkylamine, alkanol and their mixtures for obtaining extensive information. Excess molar volume (VE), deviation in viscosity (Dh) and excess Gibbs free energy of activation of viscous flow (G*E) have been calculated from measured densities and viscosities of pure butylamine …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 2, Issue 1, 2011 · pp. 24–35 Read article
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Electrooxidation Study of Acetic Acid at Low Temperature in Membrane Less Microfluidic Fuel Cell for Portable Power Application
Abstract: The global energy crisis due to dependence on fossil fuel and its limited reserves followed by environmental pollution are the key concerns to the research communities. However, recently developed micro-fluidic fuel cells using hydrogen-rich fuels are most likely to replace the batteries, due to their compactness, high efficiency and simplicity in operation. In this context, the PtxSn/C (where, x=1, 3, 5) electrode-catalysts were prepared and the electro-oxidation of acetic acid …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 7, Issue 1, 2016 · pp. 58–66 Read article
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Japanese encephalitis risk zone mapping using remote sensing data: A case study of Mid and Far- Western part of Nepal
Abstract: This study explores the usability of remotely sensed data and GIS technology to identify the impact of climatic/environmental variables and land use to Japanese Encephalitis (JE). JE is still a major health concern of Nepal. Since the first outbreak in 1978, its cases are reported in 54 districts out of 75. The climatic and environmental variables such as temperature, precipitation and land use (mainly paddy field) etc. are the main …
Published in Journal of Remote Sensing & GIS · Vol. 4, Issue 2, 2013 · pp. 47–55 Read article
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Characterization of Pure and Ag Doped ZnO Nanostructure and Study the Effect of Calcination Temperature on Bacterial Growth of Ag Doped ZnO Nanostructure.
Abstract: Sol-Gel chemical precipitation method has been implemented to synthesize Ag doped ZnO nanoparticles at 50°C. Wurtzite hexagonal crystal structure of pure and ZnO(Ag) nanoparticles have been confirmed by X-ray Diffraction (XRD) data. The crystalline size and have been estimated using XRD data. The chemical composition of pure and Ag doped ZnO nanoparticles has been investigated by analysis of Fourier transform infrared (FTIR) spectroscopy. The direct band gap of nanoparticles has …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 8, Issue 2, 2018 · pp. 31–38 Read article
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Efficient Nanostructure Cathode Material for Low Temperature Solid Oxide Fuel Cells: LaSr0.5Mn0.5Co2-xFexO5+δ
Abstract: While significant progress has been made in anode materials with enhanced tolerance to coking and contaminant poisoning, cathodic polarization still contributes considerably to energy loss, more so at lower operating temperatures. Here we report a synergistic effect of co-doping in a cation-ordered double-perovskite material, LaSr0.5Mn0.5Co2-xFexO5+δ , which has created pore channels that dramatically enhance oxygen ion diffusion and surface oxygen exchange while maintaining excellent compatibility and stability under operating conditions. …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 19, Issue 3, 2017 · pp. 49–55 Read article
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Response of Magnetic Field by Conduction Electrons at Low Temperature in 2H-NbSe2
Abstract: AbstractHere, we have presented the magneto-resistance (MR) on polycrystalline and single crystal of2H-NbSe2. The obtained MR on single crystal shows anisotropic nature associated with smalllongitudinal MR i.e. 0 / in which H II direction of current flow compared totransverse MR i.e. 0 / in which H direction of current flow. This anisotropybehaviour is associated with the complex Fermi surface found from …
Published in Research & Reviews : Journal of Physics · Vol. 4, Issue 3, 2015 · pp. 1–5 Read article
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Ultrasonic Study of Molecular Interactions in Organic Liquids at Various Temperatures and Concentrations
Abstract: The ultrasonic velocity was measured for water and glacial acetic acid in their pure state and in their binary mixtures. The ultrasonic velocity was measured also for the solution of salicylic acid in glacial acetic acid. Relative density and relative viscosity were also measured at various temperatures and concentrations. The parameters like adiabatic compressibility, acoustic impedance, relaxation time and attenuation were determined. This study is helpful for the understanding of …
Published in Research & Reviews : Journal of Physics · Vol. 1, Issue 3, 2012 · pp. 16–22 Read article
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Analysis of Thermal Performance Improvement of Engine Fins by Varying the Materials and Profiles Used at High Temperatures
Abstract: In this thesis, we will design fins using various profiles and materials to identify the optimal combination for a 100cc engine. We will also test different materials for fins to evaluate the engine's heat efficiency. Our study will involve a comparison between the optimized fins and the original aluminum fins currently used. To ensure the optimal performance of the 100cc engine, we will utilize advanced analytical software to thoroughly analyze …
Published in International Journal of Energy and Thermal Applications · Vol. 2, Issue 1, 2024 · pp. 36–46 Read article
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Design of a Geopolymer Based on Fly Ash and Metakaolin with a Solid, Liquid, and Powdered Alkaline Activator at High Temperatures
Abstract: In this work, the fresh and hardened properties of geopolymer concrete activated using solid, liquid, and powder alkaline activator systems, including fly ash and different amounts of metakaolin, are examined. Compressive and flexural strengths were assessed at 7 and 28 days in accordance with IS 516 (1959). Workability was evaluated using a slump test in accordance with IS 1199 (Part 2): 2018. At an ideal replacement level of 30%, the …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 712–726 Read article
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EGT Margin of A Jet Engine – Cause, Impact, Improvement & Simulation Theory
Abstract: When an engine runs, it produces heat and there is a range of temperature in the engine chamber. For Jet Engines, when it starts, temperature starts increasing within a range. At various durations of the engine run, there is some temperature. Higher the thrust, higher the heat temperature. This temperature is called Exhaust Gas Temperature (EGT). There is a maximum allowed gas temperature for each type of engine and the …
Published in Journal of Aerospace Engineering & Technology · Vol. 16, Issue 1, 2026 · pp. 35–48 Read article
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Ceria and Modified Ceria: A Reusable Catalyst for the Green Synthesis of 2,3-diphenyl Quinoxaline at Room Temperature
Abstract: Simple, highly versatile and efficient synthesis of 2,3-diphenylquinoxalines is achieved from benzil and o-phenylene diamine using ceria and modified ceria as the catalyst. Modification of ceria is done using different weight percentage of zirconia. The catalysts are characterized by XRD, FT-IR, BET surface area, TGA and EDX-SEM. The advantages of this method are short reaction times, milder conditions and easy work-up. The product could be separated from the heterogeneous catalyst …
Published in Journal of Catalyst & Catalysis · Vol. 1, Issue 3, 2014 · pp. 1–11 Read article
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Solar Power-Driven Intelligent IOT Based Automobile Cabin Cooling System
Abstract: Automobile owners especially in India are facing lots of issues as the temperature here is simply high, once parked underneath the hot sun. During this project, the planning and development of a automobile cabin cooling system is represented in brief. A brand-new ventilation has been designed that contains fan, solar array, temperature sensors and electronic feedback circuit to mechanically management the temperature within the automobile cabin once ignition is off. …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 10, Issue 3, 2020 · pp. 10–15 Read article
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To Study the Effect of Change in Pressure and Temperature on Performance of Reverse Osmosis Process
Abstract: Day-by-day population is increasing and this increasing population leads to some problems one of them being availability of pure and usable water. As population is increasing, demand for pure water is increasing and the water resources are limited, in fact resources are depleting. This demands to find out some new ways to save water. One of source of wastage of water is the brine rejection from Reverse Osmosis process and …
Published in Journal of Mechatronics and Automation · Vol. 6, Issue 1, 2019 · pp. 37–40 Read article
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Thermally Trigged Self-Healing Smart Shape Memory Polymer Composite
Abstract: Temperature-responsive self-actuating PU/MWCNTs composites were prepared with micro-compounder through in-situ polymerization. For making of 1CNTPU composite sample 1 part per hundred multiwall Carbone nanotubes (MWCNTs) were reinforced into the neat polyurethane (PU) base matrix. Surface characterizations for pure and composite have studying by using Atomic Force Microscope (AFM), high resolutions Scanning Electron Microscopy (SEM). Properties like shape recovery, storage modulus, loss modulus, tensile stress, degree of hardness, and flexural stress …
Published in Journal of Polymer & Composites · Vol. 9, Issue 3, 2021 · pp. 10–18 Read article
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Synthesis and formability of Al/(Fe-Mn) particulate compositeusing stir casting
Abstract: Demand for lightweight and fuel economy by automotive and aircraft industries focuses to explore different materials. Alloys and composites developed with same objective to obtain superior desired mechanical properties compatible for such intended applications. However, alloy consider as solid solutions with metallic properties and cannot mix with primary major element in random proportions. This forced researcher community to develop composites, which are heterogeneous solid solutions or multi-phase materials comprising matrix …
Published in Journal of Polymer & Composites · Vol. 10, Issue 1, 2022 · pp. 80–88 Read article
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A Cyclic Injection of High Temperature N2-foam in Fuyv Reservoir
Abstract: Steam stimulation has already been proved as an important thermal recovery technology. In Daqing, the development and management of high-heterogeneous heavy oil reservoirs plays an important role in stabilizing the oil output. To combine the good features of steam injection and cyclic injection, a cyclic steam flooding has been conducted in the Fuyv reservoir, Daqing. This paper is to present a detailed process of the cyclic-steam injection. The target Fuyv …
Published in Journal of Petroleum Engineering & Technology · Vol. 3, Issue 2, 2013 · pp. 1–12 Read article
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Evaluation of the Concentration of Selected Physicochemical Properties and the Effect of Temperature of Packed Bed Units Treated Using Bio-adsorbents
Published in Journal of Petroleum Engineering & Technology · Vol. 13, Issue 3, 2023 · pp. 25–37 Read article