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739 articles for “STEP”
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Design and Analysis of Dual Band Triangular Slotted Microstrip Patch Antenna for GPS and WLAN Application
Abstract: AbstractIn this paper, design of a dual operated microstrip patch antenna is presents. The dual-operation frequencies are chosen for UMTS/GPS and WLAN bands. A microstrip square patch antenna is designed which is excited by a microstrip line feed from the bottom of the antenna. An epoxy glass FR4 material is used as a substrate in the designing of antenna. The antenna is first modified in inverted U-shaped design to operate …
Published in Journal of Microwave Engineering and Technologies · Vol. 6, Issue 2, 2019 · pp. 1–5 Read article
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Design of Rectangular Microstrip Patch Antenna for WBAN Application
Abstract: AbstractThis paper presents a microstrip patch antenna with frequency of 2.47 GHz with substrate of FR4 Epoxy with relative permittivity of 4.4. Due to very low cost and excellent mechanical properties it is ideal for wide range of electronic component applications. Here we have cut four rectangular corners on the patch. We have first cut one corner then we found the return loss as -15.6db and gain as 5.679.To improve …
Published in Journal of Microwave Engineering and Technologies · Vol. 7, Issue 1, 2020 · pp. 25–33 Read article
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RF Energy Harvesting from Wi-Fi Router in 2.45 GHz ISM Band
Abstract: In this paper, an experimental RF energy harvesting system using rectifying antenna (rectenna) to harvest ambient energy from Wi-Fi at 2.45 GHz is presented. The proposed circuit is a combination of RMPA, followed by a third order stepped impedance low-pass filter, matching network and rectifier using Schottky diode for microwave (RF) to DC conversion. The performance of the rectenna is simulated by electromagnetic simulator computer simulation technology (CST) microwave studio. …
Published in Journal of Microwave Engineering and Technologies · Vol. 2, Issue 3, 2015 · pp. 21–25 Read article
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Design Of Multi-Bit Chipless RFID Tag Using Hybrid Resonator For Retail And Healthcare Applications
Abstract: Resonators play a very important role in chipless radio frequency identification (RFID) systems. To overcome the challenges like cost, compact dimension, and high coding capacity, chipless transponders are highly facilitated for the advancement in chipless RFID technology. This research aims to investigate innovative design options for passive RFID transponders operating in a wide range of frequencies in order to address the aforementioned issues and contribute to RFID technology advancement. To …
Published in Journal of Microwave Engineering and Technologies · Vol. 8, Issue 2, 2021 · pp. 35–43 Read article
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Optimizing Handoff Probability in GSM Networks: A Comprehensive Review of Pathloss Modeling Techniques
Abstract: Because wireless networks are becoming more and more popular, it is necessary to combine several heterogeneous networks in order to give users access to global information. An intriguing and modern concept called vertical handoff aims to combine several network interfaces. Battery power is the single most essential parameter that affects specific mobile nodes. The battery life of some mobile nodes is nearly depleted at the conclusion of algorithm execution because …
Published in Journal of Microwave Engineering and Technologies · Vol. 10, Issue 2, 2023 · pp. 22–29 Read article
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Solidification Curve Analysis of Cylindrical Casting by FEM
Abstract: In casting process, molten metal is solidified in mould cavity. Solidification process majorly classify into three different sections: (i) liquefaction (ii) solidify (iii) after solidification. In all three processes, one parameter which is called 'IHTC' (Intermediate Heat Transfer Coefficient), is varies with time. IHTC coefficient depends on shape, size, type of casting etc., so, it is continuously varies with all dependent functions. So, establishment of IHTC value is a very …
Published in Journal of Materials & Metallurgical Engineering · Vol. 6, Issue 3, 2016 · pp. 44–49 Read article
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Analysis of Friction Stir Welded Aluminum Alloys 2014 and 8011
Abstract: In this work we investigated friction stir welding of Aluminum Alloy 2014, Aluminum Alloy 8011. The major defects occurring while friction stir welding are tunnel effect, poor tensile strength, uneven material flow. The main causes for these defects are improper selection of welding parameters. The major welding parameters considered in Friction stir welding are spindle rotational speed (rpm), tool travel speed (mm/min) and tool angle (degree).In this work steps are …
Published in Journal of Materials & Metallurgical Engineering · Vol. 5, Issue 1, 2015 · pp. 12–17 Read article
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The advanced bioceramics production using process of vibroturbulization
Abstract: Currently, bioceramics are widely used in medicine as dental and bone implants. Surgical bioceramics are used regularly. Joint replacements are usually coated with bioceramics materials to reduce wear and tear and inflammation. Pacemakers, kidney dialysis equipment, and respirators are more instances of bioceramics being used in the medical field. The production process of bioceramics consists of the following four main steps: preparation of powder with a grain size of not …
Published in Journal of Materials & Metallurgical Engineering · Vol. 12, Issue 2, 2022 · pp. 10–13 Read article
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Gsm Based Patient Monitoring System and Automatic Medicine Dispenser
Abstract: AbstractIndustry of electronics is trying to develop medical equipment with very high techniques, most of the time electronic systems are used for the patient. Patient monitoring system is defined as the system used for monitoring physical parameters such as electro-cardio graph (ECG), respiratory signals, invasive and noninvasive blood pressure, temperature, etc. So, here we have tried to develop a system which is “GSM based patient monitoring and medicine dispenser” for …
Published in Journal of Microelectronics and Solid State Devices · Vol. 7, Issue 2, 2020 · pp. 13–16 Read article
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An Overview of Heavy-ion Collisions
Abstract: AbstractA large number of experiments have been performed to explore the heavy-ion collisions dynamics using accelerator facilities available in India. The experimental results have revealed that in reactions induced by nucleons or light particles at energies of the order of a few tens MeV, the great majority of the processes one observes are of statistical nature though they cannot be interpreted as a consequence of the decay of a fully …
Published in Journal of Nuclear Engineering & Technology · Vol. 9, Issue 2, 2019 · pp. 8–23 Read article
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HVAC Energy Audit of Commercial Building
Abstract: AbstractEnergy Audit in modest terms means survey/Audit accomplished by using professionals to provide methods for improving power efficiency & reducing the wastage of energy units & reducing price also. In commercial & industrial real estate, It is the first step in identifying opportunities to reduce energy expense & carbon footprint. HVAC Energy Audit plays an important role in the commercial Building approx. 50% of energy from the HVAC system. Energy …
Published in Journal of Nuclear Engineering & Technology · Vol. 9, Issue 3, 2019 · pp. 44–48 Read article
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Diversification of the Indian Nuclear Industry via Nuclear Cogeneration: Some Insights
Abstract: The Indian nuclear industry provides 2% of the electricity generated in India today. Other than its growing importance as a source of clean base load electricity in the clean energy transition as a complement to growing shares of variable renewables in India’s energy mix, it can continue to remain relevant and play a vital role in India in the years to come by suitably re-inventing itself to provide a variety …
Published in Journal of Nuclear Engineering & Technology · Vol. 12, Issue 1, 2022 · pp. 22–30 Read article
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Characterization studies on surface activation of phosphor bronze wire mesh via different chemical means for water distillation applications
Abstract: Surface activation of phosphor bronze structured packing modules is an important step in the manufacturing of high efficiency water distillation columns as it ensures excellent mass transfer behaviour and overall process intensification. These packed columns are used in the nuclear industry for heavy water production and purification. Activation is generally achieved through a treatment involving aqueous NaOH solution with bubbling of oxygen gas through it. This leads to the development …
Published in Journal of Nuclear Engineering & Technology · Vol. 12, Issue 2, 2022 · pp. 10–23 Read article
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A Study on adsorption of Phenol red dye and Chromium (VI) metal ion using activated carbon derived from Lantana camara with the activation of potassium hydroxide.
Abstract: Commercial activated carbons are expensive to produce and regenerate, it is essential to produce activatedcarbon using low-cost raw materials and methods. This study's goal is to demonstrate the possible adsorptionproperties of activated carbon made from Lantana camara for the removal of dyes and metal ions fromaqueous solutions. In this study, activated carbon from Lantana camara stems was obtained through a one-step chemical activation procedure using potassium hydroxide KOH. The surface …
Published in Journal of Nuclear Engineering & Technology · Vol. 13, Issue 1, 2023 · pp. 1–10 Read article
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Effect of Fillers on Electrical Conductivity of Epoxy Composites
Abstract: AbstractThis paper reports, electrical conductivity studies carried out on RT cure epoxy resin (LY556+HY951) containing three different particulate fillers graphite (Gr) a soft material, silicon carbide (SiC) a hard material and a hybrid graphite and silicon carbide (Gr-SiC). The weight fractions of three different fillers were varied from 10% to 40 wt% in steps of 10%. Increased filler fraction increases the electrical conductivity of epoxy composites for all the three …
Published in Journal of Polymer & Composites · Vol. 6, Issue 3, 2018 · pp. 25–30 Read article
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Electrical Conductivity and Antibacterial Studies on Chemically Synthesized Poly (2-Methyl Aniline-co-2-Chloro Aniline)-Blend-Polyurethane
Abstract: AbstractElectrically conducting copolymer blend, poly (2-methyl aniline-co-2-chloro aniline)-blend-polyurethane has been synthesized chemically by oxidative polymerization technique using 0.3 M ammonium persulphate (APS) as oxidant, 0.1 M of the anionic surfactant, sodium lauryl sulphate and 1 M HCl as dopant. The formation of the copolymer blend has been confirmed by comparison with the spectral data obtained for the copolymer which was synthesized under the same conditions and characterized. The copolymer blend …
Published in Journal of Polymer & Composites · Vol. 5, Issue 1, 2017 · pp. 7–14 Read article
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Microwave Curing of Glass-Epoxy Composites Using Silica Based Moulds
Abstract: AbstractFor polymer composite product manufacture, curing of the fibre reinforced polymers (FRP) is a critical step in achieving desired mechanical properties. The conventional cure processes involve thermal curing in hot air ovens and autoclaves where the cure process is time and energy intensive. In this context, microwave curing is one of the most promising processing methods since it results in substantially reducing cure cycle time, energy requirements and operational costs …
Published in Journal of Polymer & Composites · Vol. 3, Issue 2, 2015 · pp. 52–57 Read article
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Development of Starch/Keratin/Chitosan Composite Material as a Substitute for Polystyrene in Food Packaging
Abstract: The increase in awareness of the environmental impact of non-biodegradable waste from food packaging, has seen manufacturers push towards initiating production of eco-friendly packaging materials. This research serves as a step forward in the direction of going green, through the development of a composite material from natural, biodegradable polymers, for use in production of packaging material for fast foods. The composite was prepared from starch and chitosan with chicken feather …
Published in Journal of Polymer & Composites · Vol. 7, Issue 3, 2019 · pp. 1–7 Read article
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Evaluation of Compatibility of Elastomeric Component of Master Cylinder with Brake Fluid
Abstract: Importance of proper functioning of braking system of any automobile is imperative for ensuring safe operation. Master cylinder is a heart of the brake system and rubber seals and cups are its vital parts. Specially processed and designed seals resist leakages and transformation due to temperature changes or reaction with the brake fluid. This paper presents the compatibility study conducted on two different rubber materials, NBR and SBR-EPDM (identified by …
Published in Journal of Polymer & Composites · Vol. 8, Issue 3, 2020 · pp. 34–42 Read article
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CBR Characteristics of Layered Black Cotton Soil Stabilized with Red Stone Dust and Geosynthetics
Abstract: Geosynthetic materials play a pivotal role in addressing the challenges associated with black cotton soil, a problematic soil type prone to volume changes and exhibiting high plasticity. The primary objective is to enhance the strength properties of black cotton soil through a two-step process. Initially, the soil is stabilized by incorporating varying percentages (5%, 10%, 15%, 20%, 25%, 30%, and 35%) of red stone dust waste. Subsequently, to prepare the …
Published in Journal of Polymer & Composites · Vol. 12, Issue 2, 2024 · pp. 10–18 Read article