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119 articles for “Direct reduction”
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Behavior of Iron Ores During the Sponge Iron Production Process
Abstract: Behavior of natural iron ores with coal from different mines were undertaken to achieve better quality of sponge iron during direct reduction. Iron ore is the raw material used to make sponge iron, which is one of the main raw materials to make steel. 98% of the mined iron ore is used to make steel. The paper gives the introduction about subject. It tells about the need of direct reduced …
Published in Trends in Mechanical Engineering & Technology · Vol. 7, Issue 3, 2017 · pp. 25–28 Read article
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Efficient Conversion of Sponge Iron from Iron Ore-Coal Composite
Abstract: Today India stands as the largest producer of coal based sponge iron using calibrated ore and non-coking coal. Production of sponge iron, via the direct reduction route using rotary kilns, continues to experience significant growth in India. Direct-reduced iron (DRI), also called sponge iron, is produced from direct reduction of iron ore (in the form of lumps, pellets or fines) by a reducing gas produced from natural gas or coal. …
Published in Trends in Mechanical Engineering & Technology · Vol. 7, Issue 3, 2017 · pp. 45–52 Read article
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Torque Ripple Reduction in Induction Motor Drive Using Direct Torque Control Technique with Space Vector Modulation
Abstract: Three phase squirrel cage induction motor drives are widely used in industries for variable speed applications. This paper proposes the design and simulation of an induction motor (IM) drive with DTC-SVM (Direct Torque Control–Space Vector Modulation). The IGBT/Diode inverter switches are controlled by the DTC-SVM technique. The synthesis of vector selection table depends on the rotational direction of the stator flux vector. The control algorithm in DTC-SVM methods are based …
Published in Journal of Power Electronics and Power Systems · Vol. 5, Issue 1, 2015 · pp. 33–39 Read article
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Iron Ore Beneficiation through Reverse Flotation: Advances in Nanobubble-Assisted Flotation Technology for Lean Grade Ore Upgradation and Silica Removal: A Review
Abstract: The global demand for high-grade iron ore concentrates continues to surge as readily available rich ores become depleted. Iron ore beneficiation through froth flotation has emerged as a critical technology for upgrading lean-grade iron ores (typically 25–35% Fe) to produce high-quality concentrates (64–70% Fe) suitable for direct reduction and blast furnace operations. This comprehensive review examines the fundamental principles of flotation in iron ore beneficiation, with particular emphasis on the …
Published in International Journal of Minerals · Vol. 3, Issue 1, 2026 · pp. 1–30 Read article
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Hydrogen-based Steel Making - The future?
Abstract: The largest energy consumer i.e. 5% of global energy consumption and 7% of global CO2 emissions are produced by the iron and steel sector. The steel industry is a significant contributor to anthropogenic CO2 emissions, largely due to the use of carbon as a reducing agent in the production of virgin steel. The main cause of these emissions is the decrease in iron ore. While recycling scrap steel in electric …
Published in Journal of Materials & Metallurgical Engineering · Vol. 14, Issue 2, 2024 · pp. 38–65 Read article
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DESIGN AND MANUFACTURE OF A CYCLONE SEPARATOR FOR EFFICIENT FILTRATION AT A SUGAR MILLING PLANT
Abstract: The design of a cyclone separator with its system components to achieve efficient collection of bacilli for efficient filtration of milled sugar(sucrose) is reported in this paper. Different concepts for the design of the cyclone separator were considered and subjected to performance evaluation. The design models identified for the cyclone separator were the Stairmand, Swift and ShepherdLapple models. The cyclone separator was sized based on the Shepherd Lapple design approach. …
Published in Trends in Machine design · Vol. 10, Issue 2, 2023 · pp. 1–11 Read article
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Interference Reduction in DS-CDMA Systems Using Adaptive MMSE Technique
Abstract: Multiple access interference (MAI) limits the capacity of Direct Sequence Code Division Multiple Access (DS-CDMA) systems due to direct sequence of users. This paper examines interference reduction in Direct Sequence Code Division Multiple Access (DS-CDMA) system using Adaptive Minimum Mean Square Error (AMMSE). Much of the present research is aimed at finding an appropriate tradeoff between complexity and performance. Simulation results shows that the Adaptive MMSE is better performed than …
Published in Journal of Microelectronics and Solid State Devices · Vol. 2, Issue 3, 2015 · pp. 1–7 Read article
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Erthquake Response of Shear Wall Integrated Step-Back Set-Back Structures on Sloped Ground
Abstract: The study examines how well step-back set-back structures perform seismically when they are resting on a 27° slope in terms of base shear, maximum story displacement, story drift, and time period. Shear walls 200 mm thick are positioned at various points. The seismic performance of the square plan structure having shear wall at corner locations is presented in this study. The study's findings indicate that the shear wall's position affects …
Published in Journal of Geotechnical Engineering · Vol. 11, Issue 2, 2024 · pp. 22–31 Read article
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Efficiency Improvement and Reduction in Size of Patch Antenna
Abstract: AbstractThis proposed antenna was result of research which was carried out to reduce the size of the patch antenna (PA) and efficiency improvement of the same. Proposed method to enhance the antenna parameter and reduction of size was defected ground structure which is popularly known as DGS. An antenna was designed at 2.14 GHz and after implementing proposed defected ground structure, resonating frequency was shifted to 1.7 from 2.1 GHz. …
Published in Journal of Electronic Design Technology · Vol. 8, Issue 2, 2017 · pp. 45–50 Read article
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Structural, Electrical and Optical Properties of RGO-Incorporated PVA Nanocomposites for UV Shielding Applications
Abstract: Polymer matrix-based nanocomposites reinforced with appropriate nanoparticles have the potential to exhibit improved electrical, optical and mechanical properties, as well as improved UV-shielding capabilities. These materials are currently being utilised for various commercial applications, such as window shields and automotive components. We prepared reduced graphene oxide (rGO)-incorporated polyvinyl alcohol (PVA) polymer nanocomposites employing a solution casting method. XRD and SEM results confirmed that the rGO nanosheets were dispersed well in …
Published in Journal of Polymer & Composites · Vol. 12, Issue 6, 2024 · pp. 119–137 Read article
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Nanotechnology and Sustainability Motion
Abstract: Nanotechnology is the focus of many scientific communities due to its multifunction. To realize such functionality, the size, dimensions, and shape dependent physio-chemical properties are first analyzed. Then, measurable nanostructures including nanomaterials, nanocomposite, and nanoparticles which impact the functional properties of materials and devises are assessed. Herein, the role of such nanostructures in enhancing the efficiency, performance, and quality of materials and technology is envisioned. As a vehicle, contributions of …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 27, Issue 1, 2025 · pp. 7–13 Read article
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Simulation and Analysis of S-CSRR PIFA for C-band 5G wireless networks
Abstract: In this paper, S-CSRR (Square-Complementary Split Ring Resonator) Planar Inverted F Antenna model is designed and simulated in the HFSS software. For compact and portable devices being preferred in 5G technology, the proposed antenna is helpful. The PIFA antenna with metamaterials (MTM) is beneficial for 4G and 5G wireless communication applications and covers C-band frequencies. The C-band frequency range of 3300-4200 MHz and 4400-5000 MHz is used in the research. …
Published in Journal of Microwave Engineering and Technologies · Vol. 9, Issue 2, 2022 · pp. 15–25 Read article
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Recent developments in Nano technology applications in direct absorbing solar collectors: A Review
Abstract: Solar energy harnessing is widely promoted amongst the nations so as to encourage environment conservation. Use of solar energy is very important in the context of global warming and decrease in carbon dioxide generations. Here it becomes important for the researchers to find new methods for optimum utilization of solar energy in collectors by design modifications thereby reducing heat losses along with considering the reductions in high initial costs. Addition …
Published in Journal of Thermal Engineering and Applications · Vol. 8, Issue 2, 2021 · pp. 23–34 Read article
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Screening of Newer Phytoconstituents on Novel Enzymes for their Biological Activity
Abstract: Background: Hyperlipidemia and gout are prevalent metabolic disorders significantly impacting global health. The xanthine oxidase and HMG-CoA reductase pathways play pivotal roles in the pathophysiology of these conditions. This study explores the potential of natural phytoconstituents—daidzein, resveratrol, and genistein—as dual inhibitors for these enzymatic targets, offering insights into innovative therapeutic strategies. Aim: To evaluate the potential of natural phytoconstituents—daidzein, resveratrol, and genistein—as dual inhibitors of xanthine oxidase and HMG-CoA reductase …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 16, Issue 1, 2025 · pp. 81–86 Read article
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In-vitro assessment of plant growth promoting traits integrated with antagonistic activity of biosurfactant producing Bacillus species of oil contaminated soil
Abstract: Researchers are in search of microbial tools having plant growth promoting activity integrated to biosurfactant production potential to develop eco-friendly technique for sustainable agricultural. Presented study was undertaken to characterize the plant growth promoting activity of biosurfactant producing Bacillus species isolated from oil contaminated soil. Bacterial strains were identified as Bacillus licheniformis P1 and Bacillus velezensis P2, on the basis of morphological, biochemical and 16SrDNA gene sequence homology. Biosurfactant producing …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 12, Issue 3, 2022 · pp. 30–34 Read article
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AI-Assisted Optimization of Supersonic Airfoil Shapes Using CFD Coupling
Abstract: This paper presents a novel framework for optimizing supersonic airfoil geometries through integrated artificial intelligence and computational fluid dynamics coupling. Traditional gradient-based optimization methods for high-speed aerodynamic shapes suffer from computational expense and convergence difficulties in non-convex design spaces. The proposed methodology employs a deep neural network surrogate model trained on high-fidelity Reynolds-Averaged Navier-Stokes solutions to approximate aerodynamic performance metrics across the design space. A hybrid particle swarm-genetic algorithm searches …
Published in Journal of Aerospace Engineering & Technology · Vol. 16, Issue 1, 2026 · pp. 8–17 Read article
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An Analytical study of Government Scheme for Farmers in Gujarat: Impact, Implementation Challenges, and Policy Implications
Abstract: Gujarat’s economy is mostly dependent on agriculture, which increases food security, rural employment, and state revenue. Despite the state’s notable progress in irrigation infrastructure and agricultural commercialization, Gujarat farmers continue to face challenges, such as market volatility, water scarcity, unpredictable weather, and rising input costs. The governments of Gujarat and India have implemented several initiatives aimed at addressing these problems, including crop insurance, irrigation expansion, farm mechanization, income support, digital …
Published in International Journal of Rural and Regional Development · Vol. 4, Issue 1, 2026 · pp. 38–44 Read article
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Side Lobe Reduction using Bacterial Foraging Optimization
Abstract: AbstractTo meet the need for long-distance communication, the directive characteristics and radiation pattern of the antenna must be improved. By arranging the antenna elements in an electrical or geometric pattern, such that the radiated energy of the radiation elements vector added in the desired direction of propagation and canceled in the unwanted direction, results in a better-designed antenna array. The elements of the antenna array may be uniformly or non-uniformly …
Published in Journal of Microwave Engineering and Technologies · Vol. 7, Issue 2, 2020 · pp. 7–15 Read article
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Moshinsky Transformation and Slater Integral Methods as Evaluation Tools for Overlap Probability in Six-Quark Bag
Abstract: A comparative study of Moshinsky transformation and Slater integral methods in successful calculation of Binding Energy of mirror hypernuclei pairs ( 6 He ~6 Li , 14 14 C ~ N ), using six-quark probability of nucleon-nucleon ( ( ) 6 0 q NN P r ) and nucleon-Λ hyperon ( ( ) 6 0 q N P r ). The contribution of direct and …
Published in Journal of Nuclear Engineering & Technology · Vol. 8, Issue 3, 2018 · pp. 1–11 Read article
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Current State and Future Directions for Electric and Hybrid Vehicles
Abstract: For the preservation of fossil fuels and the reduction of pollution for a safe environment and sustainable transportation, electric and hybrid electric vehicles (EV/HEV) are viable options. The development of these energy-efficient powertrains necessitates element, system, and management improvement. Battery management, fuel use, driver performance demand emissions, and management methods are all under control. Powertrain architecture, transmission type, power electronic converters, and energy storage systems are all included in the …
Published in Trends in Electrical Engineering · Vol. 12, Issue 3, 2022 · pp. 12–19 Read article