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1991 articles for “demonstration” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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Compact Dual Band Rat Race Coupler Using T-shaped Transmission Line and Fractal Geometry
Abstract: In this paper, a compact dual band rat race coupler is proposed at two different frequency bands. The dual band property is accomplished by transforming the length and impedance of conventional quarter wave transmission line into dual band T-shaped sections. To achieve the compactness, the dual band rat race coupler was transformed into fractal structure using Sierpinski curve analogy. Simple design equations are used for basic design geometries. Then the …
Published in Journal of Microwave Engineering and Technologies · Vol. 4, Issue 2, 2017 · pp. 6–12 Read article
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Short Review on the Probability of Carbon Nanotube Based Nanofluidics in Fluid Mechanics
Abstract: In this short review, author has briefly introduced the subject named as nanofluidics. Also, author has provided a short review on passive (surface-driven) capillary flow related to microfluidics. The effects of channel aspect ratio, surface wettability, liquid viscosity, effective viscosity, centrifugal force, and bend angle, are described to control the passive capillary flow in microfluidic devices and systems. Author has demonstrated the difference between leaky-device and non-leaky device in microfluidics. …
Published in Journal of Microwave Engineering and Technologies · Vol. 7, Issue 3, 2020 · pp. 14–17 Read article
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A Review on Optimization of DC Micro Grid
Abstract: Renewable energy are being incorporated into power networks to ensure reliable and inexpensive electricity for the public and industrial sectors, while also addressing ecological consequences originating from traditional energy sources. However, including sustainable energy sources is a must. Energy in outdated electrical systems can create additional hazards and concerns, such as supply security and base load. Climatic affects, energy capacity, and so on. Recent micro grid research and development has …
Published in Journal of Microwave Engineering and Technologies · Vol. 9, Issue 1, 2022 · pp. 21–31 Read article
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Analysis of Braggs Grating for photonics application
Abstract: The plane wave expansion approach was used to optimise reflectance in a Braggs grating on a silicon on insulator structure at wavelength 1.55µm. When the results were compared to the experimental results, it was discovered that they agreed better than any other present results. Aside from the inherent benefits of FBGs, such as low cost, low losses, polarisation insensitivity, and full compatibility with fiber-optic systems, they have demonstrated that by …
Published in Journal of Microwave Engineering and Technologies · Vol. 9, Issue 1, 2022 · pp. 32–35 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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Design and Implementation of UWB-MIMO Triangular Antenna with Notch Technology
Abstract: The paper proposes a quad-element UWB-MIMO triangular monopole antenna with triple notched bands and high isolation. The antenna comprises four triangular-shaped elements arranged orthogonally, printed on a low-cost FR-4 substrate with a dielectric constant of 4.4. Its dimensions are 50 × 50 × 1.6 mm³, and it operates within the frequency band of 2.97 to 11 GHz. To achieve high isolation of 22 dB between the four radiatingelements, a square …
Published in Journal of Microwave Engineering and Technologies · Vol. 10, Issue 3, 2023 · pp. 8–15 Read article
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Experimental Setup to Determine Stress Wave Propagation in a Compound Bar
Abstract: Deformation undergone by a body due to impact results in development of dynamic stresses. This deformation depends on the material properties and geometry. Advancements made in stress wave propagation are focused at the necessity to understand dynamic history of structures subjected to applied loads. Stress travels with different velocities in different bodies depending upon material characteristics, crystal structure etc. Forces applied on bodies at short intervals of time result in …
Published in Journal of Materials & Metallurgical Engineering · Vol. 8, Issue 2, 2018 · pp. 1–6 Read article
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Centrifugal Casting of Nano Crystalline TiB2 Reinforcement Particulate Reinforcement in Al-Alloy Matrix
Abstract: A method of producing Nano size TiB2 particles within an aluminium matrix is the in situ reaction synthesis method, using KBF4 and K2TiF6 potassium based bearing fluxes. The advantages of this in situ reactive process are a small particle size and good particle/matrix interfacial bonding. However, this method is limited to producing low particulate volume percentage material (˂6 vol%). To overcome this limitation, centrifugal casting has been investigated. A series …
Published in Journal of Materials & Metallurgical Engineering · Vol. 3, Issue 3, 2013 · pp. 7–13 Read article
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Minor Scandium - Zirconium Impacts on Aluminum-6 Magnesium Cast Alloys
Abstract: Minor additions of scandium and zirconium alloy can not only improve strength and fracture toughness of the Al–6 Mg alloys, but also transform the age hardening characteristics for structural applications. If this impact were substantial, the enriched Al–6 Mg castings could be a potent material for futuristic transport sector, looking to higher specific strength and abundant availability in Indian/ global scenario. This work reports the effect of scandium and zirconium …
Published in Journal of Materials & Metallurgical Engineering · Vol. 1, Issue 1-3, 2011 · pp. 61–71 Read article
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Preparation and Characterization of a Novel Lignocellulosic Fiber from Calotropis gigantea Stem Fiber for Thermoplastic Composites
Abstract: In the current article, Calotropis gigantea fiber mat (CGM)/thermoplastic polypropylene (PP) strengthened non-woven unidirectional composites were successfully manufactured by hot compression molding using the film piling method. Micromechanical and physicomechanical properties such as tensile, flexural, compressive, impact properties, thickness, swelling, and water absorption of CGM/PP composites were evaluated for the effects of CGF composition, mercerization of CGF as well as the inclusion of two types of coupling agents (vinyltriethoxysilane and …
Published in Journal of Materials & Metallurgical Engineering · Vol. 12, Issue 1, 2022 · pp. 15–33 Read article
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Additive Manufacturing of rocket propulsion system
Abstract: In recent years plenty of research is going on to produce effective manufacturing techniques which can produce complex unique designs with reduced cost and lead time for aerospace applications. In this aspect, Additive manufacturing is getting a wide range of popularity in the aerospace manufacturing domain due to its vast applications and advantages. In terms of geometric flexibility and processing time, additive manufacturing outperforms conventionalmanufacturing processes. Additive manufacturing has found …
Published in Journal of Materials & Metallurgical Engineering · Vol. 12, Issue 2, 2022 · pp. 1–9 Read article
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Investigation of Mahogany Wood Functional Parameters Effect on Procurement: The Concepts of Buckingham Pi Theorem
Abstract: Buckingham theorem a tool used to predict procurement deliverability of Mahogany wood with impact of weight and density was investigated in the study. Indeed, the research was able to demonstrate the effect of Mahogany wood, density and other contributing factors for evaluation of the tensile strength and the delivery time on the truck. The research was simulated using some functional parameters, which was inputted by the application of MATLAB computer …
Published in Journal of Materials & Metallurgical Engineering · Vol. 13, Issue 1, 2023 · pp. 40–47 Read article
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Examination of Physicochemical Parameters of Crude Oil Remediation in Soil Environment using Agro-Based Material
Abstract: In this investigation the following physicochemical parameters were monitored which include cation exchange capacity, sodium ion, carbon, magnesium, nitrogen, calcium, available phosphorus, pH, electrical conductivity, and temperature. The experimental result obtained reveals that the physicochemical parameters analyzed the reaction than the inhibiting the reaction process by inhibiting the active site of microorganisms present in each bioreactor. The research showcases, the mass and the volume of the materials used for the …
Published in Journal of Materials & Metallurgical Engineering · Vol. 13, Issue 2, 2023 · pp. 22–30 Read article
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Conceptual Investigation of Temperature Effect on Total Dissolved Solid and Electrical Conductivity on Treatment of Polluted Water Using Adsorbent
Abstract: The conceptual investigation of temperature effect on total dissolved solid and electrical conductivity of petroleum hydrocarbon contaminated water medium was monitored using adsorbent packed in packed bed column. The experiment was set up for treatment of the contaminated water medium with crude oil and the initial concentration of the total dissolved solid and electrical conductivity was determined as well as after treatment. The result obtained showcases high mitigation in the …
Published in Journal of Materials & Metallurgical Engineering · Vol. 13, Issue 3, 2023 · pp. 45–50 Read article
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Characteristics of Sulphate, Nitrate and Total Dissolved Solid on Packed Bed Treatment of Petroleum Hydrocarbon Contaminated Water Using Adsorbent
Abstract: The characteristics of sulphate, nitrate and total dissolved solid was monitored in treatment of water medium contaminated with petroleum hydrocarbon. Agro-based adsorbent was used at different operating temperature in a packed bed unit connected in series of 1, 2 and 3. The initial concentration of sulphate, nitrate and total dissolved solid was measured and after the contaminates had passed through each packed bed unit. The result shows that the adsorbent …
Published in Journal of Materials & Metallurgical Engineering · Vol. 13, Issue 3, 2023 · pp. 38–44 Read article
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Distribution Power Loss Minimization by Network Reconfiguration and DG Placement
Abstract: AbstractThe paper presents an efficient algorithm for network reconfiguration associated with DG allocation to minimize real power losses in radial distribution networks. Selective Particle Swarm Optimization algorithm (SPSO) is used to find new tie switches. Allocation of DG units has been done by new analytical approach. The proposed analytical method for optimal DG placement is developed based on a new mathematical formulation. DG type-I is used to solve the problem. …
Published in Journal of Microelectronics and Solid State Devices · Vol. 5, Issue 1, 2018 · pp. 8–19 Read article
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Gallium Nitride based HEMTs in Nano-Scale Regime
Abstract: AbstractIn this work, a maximum drain current of 557 mA is achieved by the simulated structures of double-heterojunction HEMTs using the SILVACO-ATLAS software tool. The drain current is found to be higher at shorter gate length. The drain current is observed as higher at larger aluminium mole fraction. The drain current is also higher at larger thickness of AlGaN barrier layer. Again, the drain current is higher at larger doping …
Published in Journal of Microelectronics and Solid State Devices · Vol. 5, Issue 3, 2018 · pp. 11–21 Read article
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Application of Evolutionary Techniques for Controller Design of Inverted Pendulum
Abstract: AbstractInverted pendulum is the typical experiment platform for the study of control theories. It is an example of a nonlinear system for which stability becomes the necessary feature and also hard to achieve. The mechanism of a PID controller is employed to demonstrate the projected controller and controller is designed for acceleration as well as angle control. This paper emphasizes on the comparison between conventional PID, genetic algorithm (GA) and …
Published in Journal of Microelectronics and Solid State Devices · Vol. 6, Issue 3, 2019 · pp. 1–10 Read article
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Autonomous Military Robot with Short Range Radar and Guidance System
Abstract: AbstractThis paper proposes a completely wireless-based navigation system for high-speed navigation for unmanned ground vehicles (UGVs) on the varied landscape. This paper presents huge, precisely adjusted and time-synchronized datasets, accumulated outside, in controlled natural conditions, utilizing an automated ground vehicle e(UGV), furnished with a wide assortment of sensors to gauge the dynamic field. The hardware circuit is created in the "short separation radar" of the UGV way shape and longitudinal …
Published in Journal of Microelectronics and Solid State Devices · Vol. 7, Issue 2, 2020 · pp. 4–8 Read article
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Investigations with Gigabit Passive Optical Network
Abstract: Gigabit Passive Optical Network is one of the emergent technology to compete with high bandwidth requirement of impending subscribers. Accordingly, this manuscript explores the proposed design of the GPON. Numerical simulations have been executed for the non-return to zero and return to zero pattern with and without the Raman Effect over the single mode fiber of 20 km length of transmission. The design’s performance has been evaluated on the basis …
Published in Journal of Microelectronics and Solid State Devices · Vol. 4, Issue 2, 2017 · pp. 40–45 Read article