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132 articles for “magnetic”
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Synthesis & Characterization of Bimetallic Nanoparticles by Using PVP for Magnetic Storage Device
Abstract: Metal nanoparticles are broadly studied due to their unique chemical and physical properties, which differ from the properties of their respective bulk materials. Bimetallic nanoparticles (BNPs) are formed by the combination of two different metals. Bimetallic nanoparticles have attracted huge attention in fields such as magnetic sensors, catalysts, optical detection and biomedical applications because of their exceptional properties. In this work bimetallic nano particles have been synthesized by using a …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 4, Issue 2, 2018 · pp. 25–30 Read article
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Magnetically Tunable, Excitonic, Fermion, and Spin States in Multiferroics TbMnO3 Quantum Structures
Abstract: The research into multiferroic is gaining attentions of many researchers. Due to the fact that multiferroic quantum structures presents interesting property that meets the need of many devices such as sensors, super capacitors, Nanogenerators, and medical tools they are preferred. The origin of multiferroicity is the combinations of fermionic, spin, and excitonic states due charge localizations and transport. The time varying electric fields are better-controlled by magnetic fields. On the …
Published in International Journal of Composite and Constituent Materials · Vol. 9, Issue 1, 2023 · pp. 24–34 Read article
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Effect of Fluid Viscosity and Iron-Fluid Composition on Damping Ability of Magnetorheological Damper during Hard Turning Process
Abstract: In manufacturing industry where metal cutting operation take place, tool vibration is an undesirable phenomenon which affects surface finish of the work piece, tool life and cause discomfort to human personal. In order to avoid tool vibration, the concept of magnetorheological (MR) damper was considered in this study. When a magnetic field is applied to the MR fluids, particle chains form and the fluid becomes a semisolid. This transition is …
Published in International Journal of Mechanics and Design · Vol. 2, Issue 2, 2016 · pp. 1–13 Read article
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Hybrid Pi-Fuzzy speed controller for interior permanent magnet Synchronous Motor
Abstract: Interior Permanent Magnet Synchronous Motors (IPMSM’s) are used for fast torque response and for better performance of the machine. IPMSM's are used in low and mid power applications such as computer peripheral equipments, robotics, adjustable speed drives and electric vehicles and in servo applications. In this paper, a simulation model has been developed for speed control and improvement in the performance of a closed loop vector controlled IPMSM drive which …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 3, Issue 1, 2017 · pp. 37–53 Read article
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OPTIMIZING MAGNETIC BEHAVIOR OF NANO-CRYSTALLINE CO2CrAl TYPE HEUSLER ALLOY POWDER USING RESPONSE SURFACE METHODOLOGY
Abstract: In the present work, Co2CrAl heusler alloy powder prepared successfully from premix basic powders of Cobalt (Co), Chromium (Cr) and Aluminium (Al) in stoichiometric of 60Co-26Cr-14Al (weight %) by novelistic mechano-chemical route. Mgnetic properties of mechanically alloyed powders were characterized by vibrating sample magnetometer (VSM). The performed experiment has been designed on the basis of 2 factor 5 level response surface methodology. Experimental results were used to develop a mathematical …
Published in International Journal of Energetic Materials · Vol. 6, Issue 1, 2020 · pp. 7–13 Read article
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Controlled Texture of Magnetron Sputtered Transparent Conducting ZnO: Al Films for Solar Cell Applications
Abstract: Textured transparent and conducting ZnO:Al films were prepared by rf-magnetron sputtering on glass substrate at a temperature 3500C under Ar and Ar+O2 gas ambient. ZnO:Al thin films shows a minimum electrical resistivity of (~8.210-4 Ω-cm), and high optical transmittance (T~86–90% average) in visible region. With increasing of oxygen concentration ZnO:Al films become more compact, stoichiometric and becomes more electrically resistive. ZnO:Al shows hexagonal wurtzite polycrystalline structure with strong (002) orientations. …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 1, Issue 2, 2015 · pp. 12–19 Read article
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Synthesis, Spectral and Magnetic Moment Studies of Mixed Ligand Complexes of Hydroxamic Acids with Potassium Hexathiocyanato Vanadium (II) Tetra Hydrate
Abstract: Preparation and characterization of several hydroxamic acids of 3,4,5-trimethoxy benzohydroxamic acids(TMBHA), N-phenyl–3,4,5-trimethoxy benzohydroxamic acid(PTMBHA), 3,4-dimethoxy benzohydroxamic acid(DMBHA) and N-phenyl-3,4-dimethoxy benzohydroxamic acid(PDMBHA) were prepared and reacted with potassium hexathiocynato vandate (II) K4[V(NCS)6].3H2O tetra hydrate. The mixed ligand complexes of hydroxamic acids characterized with the help of repeated melting point identification, by I.R. studies, magnetic moment, molar conductance’s and by elemental analysis (C, H and N). The geometry of complexes were found …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 2, Issue 2, 2016 Read article
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Genetic Algorithm approach for the Position Control of Permanent Magnetic Synchronous Machine
Abstract: Permanent Magnetic Synchronous Motors (PMSM or Brushless DC Motor) are widely being used for many industrial applications because of their high efficiency, high torque and low volume. Research has conducted using genetic algorithm to develop a complete model of the BLDC motor and to design an optimal controller for its position control. Generally PID controller is being used for control purposes in many systems because of its simple structure and …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 2, Issue 1, 2016 · pp. 30–39 Read article
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Study of Modeling and Simulations of Permanent Magnet Synchronous Motor
Abstract: The modeling of permanent magnet synchronous motor field-oriented control is used for the operationof the drive. The simulation includes all realistic components of the system. This enables the calculationof currents and voltages in different parts of the inverter and motor under transient and steadyconditions. The losses in different parts are calculated, facilitating the design of the inverter. Closedloop control system with a proportional integral (PI) controller in the speed loop …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 7, Issue 1, 2021 · pp. 29–37 Read article
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Magnetic Priority Encoder Based on Spin Devices
Abstract: Energy dissipation has already become an important consideration in the design of digital integrated circuits. Because current-induced domain-wall (DW) motion is a common switching mechanism, high-density, low-power, and high-speed circuits are possible. Because spin computing is one of the most common sources of energy dissipation, employing spin logic to design digital circuits is an effective way to reduce the circuit's energy dissipation. As a result, a new spin-based priority encoder …
Published in International Journal of Applied Nanotechnology · Vol. 8, Issue 1, 2022 · pp. 16–22 Read article
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Preparation of Cu2O/ZnO Heterojunction Thin Film Solar Cell grown by RF Magnetron Sputtering
Abstract: Both cuprous oxide (Cu2O) and zinc oxide (ZnO) hold a very important position in the fields of materials science due to great potential in many acoustic, electric and optical applications. Cu2O, a direct-gap semiconductor with band gap energy of 2.0 eV has been regarded as one of the most promising materials for application to photovoltaic cells, especially for the top cell in a tandem structure. The attractiveness of Cu2O and …
Published in International Journal of Energetic Materials · Vol. 1, Issue 1, 2015 · pp. 27–30 Read article
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Understanding and Controlling Metal Pad Roll Instability in High-Capacity Liquid Metal Battery Systems
Abstract: The present study delves into the roll instability of metal pads within cylindrical liquid metal battery cells, focusing on the characteristics, control, and modeling of the instability within an energetic materials context. Explicit formulas are derived that offer theoretical benchmarks for magnetohydrodynamic solvers OpenFOAM and SFEMaNS, revealing an excellent alignment with experimental observations on gravity wave damping rates in multilayered liquid metal battery systems. Instability thresholds are analyzed for metal …
Published in International Journal of Energetic Materials · Vol. 10, Issue 2, 2024 · pp. 12–16 Read article
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Physics, Novel Concepts and Technical Analysis of GaMnAs Digital Alloys
Abstract: GaMnAs Digital Alloys have recently drawn the attention of various workers, due to their very special properties from the point of view of applications in spintronics. Physics and Novel Concepts of GaMnAs Digital Alloys have been presented in this paper. The various technical aspects of digital alloys like III1-xMnxV Random Alloys (InMnAs and GaMnAs), MBE grown GaMnAs Random Alloys, Photo-induced Ferromagnetism, Magnetization Measurements, MagnetoTransport Measurements, and Temperature Dependence of Sheet …
Published in International Journal of Metallurgy and Alloys · Vol. 10, Issue 2, 2024 · pp. 1–10 Read article
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Superconducting Magnetic Energy Storage Based Dynamic Voltage Restorer for Grid-Connected Hybrid PV-Wind Power System Modeling and Simulation
Abstract: The DVR-connected series will use three injections in a single application or three injections in three following converters to inject three compensating compressors in the main supply. The injection transformer raises the released VSI's output voltage to the required level. The converter also isolates the DVR circuit from either the transmission network. The voltage source inverter's (VSI) output power and the quality of the filter used to connect the injection …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 8, Issue 2, 2022 · pp. 35–42 Read article
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Ferromagnetism in Rare Earth Metal Doped ZnO: A Theoretical Approach
Abstract: The ferromagnetic properties of Diluted Magnetic semiconductor, Zn1−xDyxO is studied from theoretical point of view. The Heisenberg’s and Greens theorem determine the Hamiltonian of the system. The interaction between the nearest neighboring spin is determined by retarded Greens function. By using Greens theory, defect-induced ferromagnetism is discussed. For the ferromagnetic states, the expected exchange integral is positive and negative for the antiferromagnetic states. In addition, from magnetic property, the temperature …
Published in International Journal of Applied Nanotechnology · Vol. 8, Issue 1, 2022 · pp. 1–11 Read article
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Tuning Superconductivity in ABO3 Type Multiferroic Nanocrystals
Abstract: We present a suitable ways for tuning superconductivity in type multiferroics nanocrystals. It is seen that as a smart materials, multiferroics nanocrystals present distinguishing properties including ferroelectricity, piezoelectricity, ferrotoroids, magneto electrics and ferromagnetism. The reasons for the existence of multiferroicity are interactions of photons with these analytic molecules, electron doping and crispr, which adds or alters the electronic, optical and magnetic properties dramatically. It is clarified that the existence of …
Published in International Journal of Industrial Biotechnology and Biomaterials · Vol. 9, Issue 1, 2023 · pp. 5–17 Read article
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Nanotechnology as a new perspective in Regenerative Medicine
Abstract: The introduction of nanotechnology has brought a transformation in medical technology frommicro fluidics to nanomedicine. As nanotechnology is multidisciplinary, it promotes severalscience and technology. Importantly, strategies and principles of physic and nanotechnologyas new perspective in nanomedicine, plays a pivotal role in personal medicine, precisionmedicine, and regenerative medicine. Herein, look toward the strategies of physics includingelectric stimulations, magnetism, and electro mechanics in shaping the regenerative medicine.Moreover, the potential of nanotechnology in …
Published in International journal of Nanobiotechnology · Vol. 11, Issue 2, 2025 Read article
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Design and Analysis of Raxial Flux Motor: A Review
Abstract: This review paper offers a comparative study of radial-flux motors and axial-flux motors, providing a detailed analysis of the design and performance of raxial flux motors. The manufacturer of an axial flux motor is “Koenigsegg,” a Swedish company that specializes in producing high-performance cars, primarily sports cars. The four-seater Koenigsegg Gemera was designed to be powered by a raxial flux motor. Quark, the name of the motor, reexamines the four …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 10, Issue 2, 2024 · pp. 16–24 Read article
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Energy Efficient Ceiling Fan Using BLDC Motor: A Review
Abstract: For many years, ceiling fans have been a necessary component of both commercial and residential areas because they offer ventilation and relaxation. However, the need for energy-efficient ceiling fans that do not compromise performance is growing as sustainability and energy efficiency get more attention. This demand has led to a rise in the use of brushless DC (BLDC) motors in ceiling fan technology. The investigation of energy-efficient ceiling fans powered …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 10, Issue 2, 2024 · pp. 8–15 Read article
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Energy Efficient Ceiling Fan using BLDC Motor A Review
Abstract: For many years, ceiling fans have been a necessary component of both commercial and residential areas because they offer ventilation and relaxation. However, the need for energy-efficient ceiling fans that don't compromise performance is growing as sustainability and energy efficiency get more attention. This demand has led to a rise in the use of brushless DC (BLDC) motors in ceiling fan technology. The investigation of energy-efficient ceiling fans powered by …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 10, Issue 2, 2024 Read article