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806 articles for “TEM”
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Density as a Factor Limiting the Workability of Sintering Aluminum Powder Preforms
Abstract: The technology advancement has envisaged going for near net shape of the produces. Also, near netshapes formed are again cold upset for obtaining a final shape of the Product.In this study a general scheme expressing the factors which affect a workability of Sintering aluminium powder preforms. This work deals with an experimental determination Workability of Sintering Aluminium powder preforms is limited by their density. A standard of rings of ratio …
Published in International Journal of Mechanics and Design · Vol. 4, Issue 1, 2018 · pp. 40–43 Read article
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Effect of Heat Treatment on Fatigue Behavior of Carbon Steel
Abstract: This research comprises a study of the effect of heat treatment on fatigue behavior carbon steel and it was concluded that the increase of fatigue strength is directly proportional to increase in tensile strength. The best results were obtained for the specimen tempered at comparatively low temperature (2000C). These specimens have also shown the highest endurance limit this is perhaps due to the fact that these specimens possess vary high …
Published in International Journal of Manufacturing and Materials Processing · Vol. 4, Issue 1, 2018 · pp. 32–35 Read article
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Microstructural and Hardness Study of A390/20wt.% SiC Functionally Graded Metal Matrix Composite
Abstract: Functionally graded materials are the upcoming new class of advanced materials, which exhibit gradual change in the microstructure and the composition in a definite direction, and hence variation in functional performance within a part. Functionally graded metal matrix composites (FGMMC) are FGM with metal and ceramic constituents. Aluminum-Silicon alloys are well-known for their unique combination of desirable characteristics, which includes excellent castability and less density combined with good mechanical properties. …
Published in International Journal of Manufacturing and Materials Processing · Vol. 6, Issue 2, 2020 · pp. 52–58 Read article
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A Computational Study of Solar Air Heater for Its Performance Enhancement by Numerical Approach Using Standard CFD Tools
Abstract: In the following report, the main objective is to calculate the efficiency of the solar air heater, mean exit temperature of air using CFD (Computational Fluid Dynamics) simulation. CFD software promises to be a futuristic field of application especially in the field of thermal engineering. The analysis is performed on a two dimensional built solar air heater. The geometry modelling is done in “Gambit” software followed by its analysis for …
Published in International Journal of Computer Aided Manufacturing · Vol. 1, Issue 2, 2016 · pp. 21–27 Read article
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Study of Thermal Stresses on Cast Iron and Aluminum Alloy V8 Cylinder Blocks for A Four Stroke CI Engine Without any Application of Cooling Systems
Abstract: The purpose of this paper is to investigate the thermal stresses experienced by a V8 cylinder block of a four stroke CI engine at a specific point in time during the engine's operation. Two case studies were performed for the cylinder block with different materials. Aluminum A356 T6 and Iron Cast are the materials used in these case studies for the cylinder block. Pressures and temperatures were applied only to …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 7, Issue 2, 2021 · pp. 6–19 Read article
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Study of the Fuel Injector Nozzle of the CI Engine
Abstract: A nozzle is a compounds present on all gas turbine engines. that produces thrust, redirects exhaust gases backinto the streaming site, and maintains mass flow rates. There are many various varieties of nozzles, butdivergent and convergent nozzles are the ones that are most normally utilized. The paper discussed variousfluids flowing at different velocities and convergent and divergent nozzle diameters. Thermal and chemicalenergy are transformed into kinetic using the nozzle. The …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 8, Issue 2, 2022 · pp. 30–35 Read article
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Identification of significant parameters for the production of Jatropha biodiesel using preliminary experimentation
Abstract: The current research work is on Jatropha biodiesel for finding the significant parameters in optimum biodiesel yield. The one factor at a time approach is applied in the esterification. The trans-esterification reaction is used by mixing of Jatropha oil and ethanol in the presence of catalyst KOH. After some time two products are formed a Jatropha biodiesel and a glycerin. The density of glycerin is more as compared to biodiesel. …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 9, Issue 1, 2023 · pp. 1–7 Read article
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Production of Composite Biodiesel from Pongamia & Simarouba oil and Comparison of Performance of Composite Biodiesel with Diesel
Abstract: Pongamia oil and simarouba oil are mixed in equal volume to prepare the composite oil. The composite oil is processed through two stage transesterification process to produce composite biodiesel. The composite biodiesel blends are prepared by mixing neat biodiesel with diesel by 5%, 10% and 20% volume respectively. The engine control factors viz., injection pressure, injection timing and fuel preheating temperature are considered for evaluating the performance of composite biodiesel …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 9, Issue 2, 2023 · pp. 1–9 Read article
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Modeling, Analysis and Vibrational Behaviour of A Steam Turbine Blade
Abstract: In this research work, the 2nd LP stage of 250MW steam turbine that having 102 blades is considered and blade geometry for various cross-sections had developed with inputs given as co-ordinates which is from blade root to tip of the portion by using UNIGRAPHICS. In order to achieve its desired performance for a steam turbine blade, the blade material has to withstand ambient conditions such as loading, temperatures, pressures and, …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 6, Issue 1, 2020 · pp. 27–45 Read article
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Mechanical Characterization using Finite Element Analysis of Jute and E-Glass Fabric Reinforced Epoxy Composite Materials
Abstract: Recently, there has been a greater inclination towards natural fiber reinforced plastics composites (NFRPC) because these are environmentally friendly and cost-effective to synthetic fiber reinforced composites. The availability of natural fibers and ease of manufacturing have tempted researchers worldwide to try locally available inexpensive fibers and to study their feasibility of reinforcement purposes and to what extent they satisfy the required specifications of good reinforced polymer composite for tribological applications. …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 6, Issue 2, 2020 · pp. 21–39 Read article
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COVID-19 Pandemic: This Too Shall Pass
Abstract: COVID-19 began so suddenly that no one imagined that it could be for such a long stretch. A tiny virus locked down the whole world within very short notice. Life just turned to a muchunexpected patch. Is it to be taken seriously knowing the reality of the happenings? Having been objective to this scenario, it has left one in a very indefinite condition. The authorities globally are taking adequate and …
Published in International Journal of Immunological Nursing · Vol. 7, Issue 1, 2021 · pp. 1–4 Read article
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Alice in Wonderland Syndrome/Todd’s Syndrome
Abstract: Alice in Wonderland Syndrome is a rare neurological condition temporarily cause distortion in perception of body size, image and time can lead to disorientation and misperception of reality. The syndrome is usually associated with visual hallucinations. It is very rare condition most often affect in children and young adult. It is due to family history of migraines, temporal lobe epilepsy, delirium tremens, and brain tumors, Infectious mononucleosis. The hallmark sign …
Published in International Journal of Neurological Nursing · Vol. 3, Issue 2, 2017 · pp. 57–61 Read article
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An Experimental Pragmatic Observational Study to Evaluate the Efficacy of Nesting on Posture and Physiological Parameters Among Premature Neonates in Tertiary Care Neonatal Intensive Care Unit, Delhi/NCR
Abstract: Abstract “Nesting” is a comfort measure that simulates in-utero feeling of lack of space and makes the baby less jittery. Nesting facilitates positioning and deep peaceful nights and contented days, thus conserving energy, minimizing weight loss, and improving the physiological parameters. The present study aims at to evaluate the effectiveness of nesting on posture and physiological parameters among premature babies admitted in NICU. A quasi-experimental research methodology with non-probability purposive …
Published in International Journal of Pediatric Nursing · Vol. 8, Issue 2, 2022 · pp. 1–5 Read article
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Tri-Route Orchestration of Sr-Modification, MoldVibration, and T6 Treatment on the Microstructure andPerformance of A356 Alloy
Abstract: This study examines the cascade effects of chemical modification, mechanical mold vibration during solidification, and subsequent T6 heat treatment on the microstructural evolution and multi-property enhancement of A356 Alloy cast via permanent mold casting. Initially Sodium (Na) modifying flux (2– 4 wt%) and Strontium (Sr) elemental modifier (0.01–0.05 wt%) were implemented to refine the morphology of eutectic silicon; Sr addition at an optimal concentration of 0.04 wt.% yielded superior eutectic …
Published in International Journal of Manufacturing and Materials Processing · Vol. 12, Issue 2, 2026 · pp. 13–25 Read article
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Advances in the Synthesis and Functional Applications of Crystalline Materials
Abstract: Crystalline materials represent one of the most important classes of advanced materials in modern science and engineering due to their highly ordered atomic arrangements and outstanding physical, chemical, electrical, optical, thermal, and mechanical properties. The periodic organization of atoms within crystal lattices provides exceptional opportunities for controlling and optimizing material performance through advanced synthesis strategies, crystal growth techniques, compositional modification, and defect engineering. Recent progress in materials science has enabled …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 12, Issue 2, 2026 Read article
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Classification of Fetal ECG Arrhythmia by Using Advance Hybrid Deep Learning Technique CNN-LSTM
Abstract: Fetal heart abnormalities, particularly fetal heart arrhythmias, are becoming an increasing concern in maternal healthcare. Early and accurate detection remains challenging due to limitations in conventional diagnostic techniques and inadequate signal processing methods. Existing studies have applied various machine learning and deep learning approaches; however, capturing the complex characteristics of fetal electrocardiogram (ECG) signals remains a significant gap. This study proposes an advanced deep learning-based approach for detecting fetal heart …
Published in International Journal of Cardiovascular Nursing · Vol. 12, Issue 1, 2026 · pp. 27–36 Read article
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Chemistry of Mehandi (Henna): Natural Dyeing Mechanism, Composition, and Applications
Abstract: Mehandi (Henna), derived from the plant Lawsonia inermis, is one of the oldest natural dyes used for body art, hair coloring, and traditional medicinal applications. Beyond its cultural significance, henna represents an interesting example of applied organic chemistry, where naturally occurring molecules interact with biological tissues to produce long-lasting coloration. The primary coloring constituent of henna is Lawsone (2-hydroxy-1,4-naphthoquinone), a naphthoquinone compound responsible for the characteristic reddish-brown stain. When henna …
Published in International Journal of Analytical and Applied Chemistry · Vol. 12, Issue 2, 2026 · pp. 39–45 Read article
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Advanced Magnesium-Based Metallic GlassComposites for Biomedical Implant Applications: AMachine-Learning-Informed Approach
Abstract: Magnesium-based bulk metallic glasses (Mg-BMGs) combine strength, low density, and tunable degradability. Their amorphous matrix has a small plastic process zone. This zone is only about 4 μm wide. A small process zone keeps most glasses brittle. Adding a second phase is the best fix. This chapter extends Mg-BMGs to true composites. We call these Mg-based bulk metallic glass composites, or Mg- BMGCs. The chapter covers matrix engineering and interfacial …
Published in International Journal of Composite Materials and Matrices · Vol. 12, Issue 2, 2026 · pp. 48–65 Read article
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Sonochemical Synthesis of Copper Nanoparticles:Process Fundamentals, Scale-Up Challenges, andIndustrial Opportunities
Abstract: The sonochemical synthesis of copper nanoparticles (Cu NPs) has emerged as a powerful and widely investigated strategy in nanomaterials research, owing to the unique physicochemical conditions generated during ultrasonic irradiation. Acoustic cavitation induced by sonication produces transient microenvironments characterized by extremely high local temperatures, pressures, and rapid cooling rates, which collectively enable efficient reduction of copper precursors into nanoscale particles. These conditions cannot be easily achieved through conventional synthetic routes, …
Published in International Journal of Chemical Engineering and Processing · Vol. 12, Issue 2, 2026 · pp. 37–43 Read article
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Hybrid Organic–Inorganic Metal Halide Perovskite Solar Cells: A Comprehensive Review of Materials, Device Architectures, Stability, Hysteresis, and Commercialization Challenges
Abstract: Hybrid organic–inorganic metal halide perovskite solar cells (PSCs) have emerged as a major focus of photovoltaic research due to their remarkable increase in power conversion efficiency, reaching 28% within a short period. Perovskite materials exhibit several attractive properties, including long charge-carrier diffusion lengths, tunable band gaps, and excellent light absorption capability. In addition, their low-cost fabrication processes combined with high efficiency make PSCs strong competitors to conventional silicon-based solar cells. …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 12, Issue 2, 2026 · pp. 47–60 Read article