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345 articles for “micro-simulation”
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Gas and Temperature Detection System using Microcontroller
Abstract: In current system safety plays an important role, so best safety systems to be implemented in everyday routines. Gas leakage is a major concern with residential, commercial premises, and gas powered transportation vehicles. One of the preventive measures to avoid the danger associated with gas leakage is to install a gas leakage detector at vulnerable locations. The objective of this work is to present the design of a cost effective …
Published in Journal of Control & Instrumentation · Vol. 4, Issue 2, 2013 · pp. 1–7 Read article
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Voice Controlled Wheelchair Along with Health Monitoring
Abstract: In recent years, mobility aids like wheelchairs have been essential for enhancing the independence of individuals with physical disabilities. However, traditional wheelchairs, often controlled manually or via joysticks, pose challenges for those with severe impairments. This project introduces a voice-controlled wheelchair integrated with health monitoring capabilities, addressing these limitations. The system features an ESP32 microcontroller that processes voice commands, such as "move forward" or "stop," captured by a microphone and …
Published in Journal of Instrumentation Technology & Innovations · Vol. 15, Issue 1, 2025 · pp. 1–6 Read article
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Co-planar Waveguide Circular Ring Microstrip Patch Antenna for WLAN Applications
Abstract: AbstractA printed circular microstrip patch antenna with a four rectangular shape strip and co planar rectangular ground plane has been proposed. Four rectangles of dimensions 4.8mm x3mm are arranged in such a manner to achieve both the WLAN frequency band. The bandwidths of 341MHz and 414MHz are achieved having a resonant frequency of 2.37GHz and 5.45GHz respectively. This antenna is printed on the glass epoxy (FR4 lossy) of dielectric substrate …
Published in Journal of Communication Engineering & Systems · Vol. 6, Issue 3, 2016 · pp. 1–6 Read article
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Circularly Polarized Microstrip Fed Antenna for Dual Frequency
Abstract: Abstract: The presented antenna is designed for achieving dual frequency characterized circularly polarized behavior. The achievement of dual frequency is done by coupling of the microstrip feed line arrangement with the annular slot shaped with four unequal arms type of slot structure on the patch. The Reflection coefficient, pattern of radiation of the antenna and the Axial ratio are simulated. The impedance bandwidths obtained for lower of (RHCP) is 25% …
Published in Journal of Microwave Engineering and Technologies · Vol. 6, Issue 1, 2019 · pp. 1–5 Read article
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Metamaterial-Based Thermal Shielding Structures for Reusable Hypersonic Space Transportation Systems
Abstract: The rapid development of reusable hypersonic space transportation systems has intensified the need for advanced thermal protection technologies capable of withstanding extreme aerodynamic heating conditions encountered during atmospheric re-entry and sustained hypersonic flight. Conventional thermal shielding materials often suffer from high structural weight, limited adaptability, thermal fatigue, and degradation under repeated thermal cycling. This study proposes a novel Metamaterial-Based Thermal Shielding Structure for Reusable Hypersonic Space Transportation Systems, integrating engineered …
Published in Journal of Aerospace Engineering & Technology · Vol. 16, Issue 2, 2026 Read article
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Thevenin and Norton Resistance Using Time Domain Analyses Using Spice Simulations
Abstract: Thevenin and Norton equivalent circuits are of interest to circuit simulation designers and researchers. For the Thevenin resistance and Norton conductance determination of a network with available circuit theorems, the substitution network theorem (applied to OrCAD, SPICE, and Pspice AD simulation project) is shown to be suitable with the SPICE/ Pspice circuit simulation software. Instead of the DC option, the transient analyses option of SPICE is used to determine Thevenin/Norton …
Published in Current Trends in Signal Processing · Vol. 13, Issue 2, 2023 · pp. 8–18 Read article
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Dielectric Polymer Based Tunable Bandpass Filter for RF MEMS Applications
Abstract: In this paper, we report on the design, modeling, and analysis of a tunable bandpass filter implemented in a coplanar waveguide (CPW) configuration, where a distributed MEMS transmission line (DMTL) is integrated with dielectric polymer layers to achieve dynamic frequency and bandwidth reconfigurability. The proposed filter architecture leverages the tunable dielectric response of polymer films, enabling precise control of the center frequency and passband width under applied electrostatic bias. Comprehensive …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 1449–1470 Read article
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A Review on Chiral Metamaterials and its Applications in Antennas
Abstract: AbstractThis paper presents a review of the chiral metamaterials (CMM) and their different specific properties like circular dichroism, negative refractive index, and giant optical activity. The physical properties of metàmaterials circular dichroism and the method of retrieval of effective parameters of the CMM are discussed in detail. The various classes of the chiral metamaterial and their results of the simulation are presented. The study shows that the chiral metamaterials have …
Published in Journal of Microwave Engineering and Technologies · Vol. 5, Issue 2, 2018 · pp. 5–16 Read article
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A Novel Antenna Design based on a Single UC-PBG Layer of High Gain for Wireless Power Transfer
Abstract: In this study, a brand-new, highly effective antenna design is put forth to provide a directional radiation pattern with a small beam width for wireless power transfer. The proposed antenna is constructed from a cross-shaped patch of square holes. A favorable eclipse is paired with the antenna patch to provide circular polarization-symmetrical radiation. A symmetrical quadrature stare-shaped unit cell has a uniform compact photonic bandgap layer (UC-PBG) on top of …
Published in Journal of Microwave Engineering and Technologies · Vol. 9, Issue 3, 2022 · pp. 8–19 Read article
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Effect of Notching on the Return loss of T-shaped Microstrip Patch Antenna for Wireless Communication System
Abstract: AbstractWith the loading of a pair of notches, a T-shaped slot and a pair of rectangular slots, novel bandwidth enhancement of microstrip antenna is demonstrated. The design is fed through a single coaxial probe. The proposed antenna is a modification of a simple T-shaped antenna which provides good radiating characteristics with enhanced bandwidth. The proposed antenna covers the S band and is used for many wireless applications. The proposed antenna …
Published in Trends in Opto-electro & Optical Communication · Vol. 7, Issue 2, 2017 · pp. 7–11 Read article
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Green Synthesis of Copper Nanoparticle for the Treatment of Neurodegenerative Disease
Abstract: The study of ecologically friendly CuNP synthesis is a growing area with potential applications in biomedical research and environmental remediation, as well as sustainable nanotechnology. Generally, reducing, and stabilizing agents such as microbes, plant extracts, or other natural sources are used. The green synthesis methodology guarantees the production of nanoparticles with desired characteristics for biomedical applications while simultaneously mitigating the environmental effect that comes with conventional chemical processes. CuNPs possess …
Published in Research and Reviews : A Journal of Biotechnology · Vol. 14, Issue 1, 2024 · pp. 13–24 Read article
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UWB Band Pass Filter Using Dielectric Resonator
Abstract: A novel ultra-wideband (UWB) bandpass filter is proposed and implemented using a dielectric resonator, with aim of transmitting the signals in the whole UWB passband of 3.1–10.6 GHz. Ultra-wideband (UWB) is a promising innovation for some remote applications because of its expansive transfer speed, great proportion of transmission information and low power cost. The filter is compact in size with a great simplicity in assembly and integration. The developed UWB …
Published in Journal of Microwave Engineering and Technologies · Vol. 3, Issue 3, 2016 · pp. 25–29 Read article
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Wideband Microstrip Slot Antenna Using Shape Blending Algorithm
Abstract: For the effective wireless communication over long distances, the antennas with wideband operation and narrow beam widths are the requirements for the evolving modern mobile devices. This paper presents the design and analysis of the wideband patch antenna with slot using shape blending algorithm. The major advantage of this algorithm is to optimize the shape of the radiating element by applying Heaviside function to improve the performance characteristics of the …
Published in Journal of Mechatronics and Automation · Vol. 9, Issue 1, 2022 · pp. 19–27 Read article
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Dynamic deformation and microstructural characteristics of AA5083 under the influence of electrochemical behaviour using equal channel angular pressing
Abstract: Large-scale Equal channel angular pressing is a great engineering material that has more potential for AA5083 industrial applications. Uniaxial dynamic compressive tests across a temperature of 448 K were conducted for the ECAP technique AA5083 in order to create such a design framework. The microstructure was described using transmission electron microscopy and scanning electron microscope both before and after dynamic loading. The plastic flow behaviour of the AA5083 was described …
Published in Journal of Polymer & Composites · Vol. 12, Issue 1, 2024 · pp. 95–112 Read article
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Frozen Waves: Double T-Shape Patch Antenna Sensor for Precise Ice and Snow Measurement
Abstract: To design a Micro strip patch antenna with double T shaped slots at operating frequency 2.4GHz was developed for ice detection and measurement application. Detection was performed by monitoring the resonance frequency and amplitude of the transmission coefficient between the antenna sensor and a broadband receiver. The patch antenna sensor is also capable of distinguishing between ice and water, respectively when compared to the bare sensor. The antenna was also …
Published in Journal of Control & Instrumentation · Vol. 14, Issue 3, 2023 · pp. 15–20 Read article
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Numerical Investigation of Heat Transfer Enhancement in Micro-Channel Cooling Using Finite Element Analysis
Abstract: Due to the enormous heat fluxes emitted by modern electronic chips, there is a persistent need to enhance the efficiency of cooling systems. This study's focus is on optimizing heat transfer in micro-channel heat sinks that use liquid cooling. Geometric changes and the use of nano-fluids as coolants in place of water are performed to achieve this goal with little energy consumption. Numerical analysis of pipe micro-channel fluid flow and …
Published in International Journal of Energy and Thermal Applications · Vol. 1, Issue 1, 2023 · pp. 36–44 Read article
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Wireless and Wearable Real-time Health Monitoring Systems: A Review of Recent Developments
Abstract: This paper explores the interdependent relationship between mental and physical health, highlighting the impact of stress and anxiety on the body by introducing an innovative Real- Time Health Monitoring System. This system monitors both mental well-being and physical health using advanced physical health sensors and Facial Emotion Recognition (FER) technology. Leveraging high-precision sensors such as Temperature and pulse oximeters, it continuously monitors vital physiological parameters such as Body Temperature and …
Published in International Journal of Radio Frequency Innovations · Vol. 2, Issue 1, 2024 · pp. 1–7 Read article
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MATLAB/Simulink Based Modelling of Solar Photovoltaic Cell
Abstract: AbstractThis paper focuses on a Matlab/SIMULINK model of a 36 cell/72 cell solar photovoltaic cell. This comprehensive Solar Photovoltaic model has been built on mathematical equations and improved through an analogical circuit connecting a photocurrent source and a diode, connecting through a series resistor and a shunt resistor. The developed model assists in the predicting and analyzing the behaviour and properties of PV cell/PV module under different physical and environmental …
Published in Journal of Microcontroller Engineering and Applications · Vol. 5, Issue 3, 2018 · pp. 21–28 Read article
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Dual Band Rectenna for Energy Harvesting and Wireless Power Transfer
Abstract: In this paper, anticipated antenna for energy harvesting has been studied with high directivity, high gain and good return loss. The simulation of the proposed antenna was carried using IE3Dsoftware. The presented antenna is fit for wireless power transfer at resonant frequency 2.7 and 4.75 GHz. The microstrip antenna design is very compact which is made of glass epoxy having dielectric constant of 4.4.Keywords: Microstrip patch antenna, return lossCite this …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 4, Issue 3, 2017 · pp. 1–4 Read article
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A Novel Design for High Speed & Area Efficient Compressor Based Vedic Multiplier
Abstract: Multipliers are the most important part in any arithmetic and logic unit, AbstractMultipliers are the most important part in any arithmetic and logic unit, accumulators and digital signal processors. Due to the increasing constraints on delay, the design of faster multipliers is emphasized. Among several multipliers, Vedic multipliers are preferred for their speed of operation. Here the proposed Vedic multiplication techniques are based on “URDHVA TIRYAKBHYAM” a fast and efficient …
Published in Journal of Microelectronics and Solid State Devices · Vol. 5, Issue 3, 2018 · pp. 1–10 Read article