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267 articles for “substrates”
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Investigation on the Treatment of Different Soil Types using Elephant Grass and Moringa Seed Shell
Abstract: The research on the effect of locally sourced raw materials effectiveness to enhance remediation of crude oil polluted soil environment using moringa seed shell in powdered form, yeast and NPK in swampy and clay Soil (moringa oleifera) and elephant grass in powdered form, yeast and NPK in swampy soil (pennisetum purpureum) was studied. Experimental investigation was conducted to determine the performance of both locally sourced raw materials for crude oil …
Published in Journal of Catalyst & Catalysis · Vol. 9, Issue 3, 2022 · pp. 35–43 Read article
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Mohr's circle for stress in planes and Stress-Strain Relation for Elasticity Equations and Stress-Strain Analysis
Abstract: The distribution of stress and strain in thin films and substrates resulting from inhomogeneous plane stresses created in the film during deposition is calculated and reported. The findings can be used to determine the unknown stresses in a film using the "bending plate method," which measures the deformation of the substrate surface By doing this, Theoretically, the local values of the stress tensor within the film plane and the centre …
Published in Journal of Experimental & Applied Mechanics · Vol. 13, Issue 2, 2022 · pp. 16–21 Read article
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A Novel High Gain Cavity Backed Micro Strip-Fed Circular Triangular Corner Fractal Antenna for UWB Applications
Abstract: In the current article, a novel micro strip-fed circular triangular corner fractal unidirectional antenna with high gain is proposed for ultra wideband (UWB) applications. This antenna consists of circular patch with triangular slot with three iterations. A prototype of antenna has been designed on FR4 substrate having dielectric constant 4.4 and thickness 1.6 mm. This reference antenna is then placed in a cavity made up of FR4 having thickness same …
Published in Journal of Electronic Design Technology · Vol. 6, Issue 1, 2015 · pp. 19–24 Read article
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A Multiband Microstrip-fed Slot Antenna for ITS/WLAN/WiMAX & IEEE 802.11a Application
Abstract: A microstrip-fed slot antenna for multiband operation is proposed. The antenna is printed on silicon substrate with thickness of 1.6 mm and dielectric constant of 11.9. A simple 50Ω microstrip line is used to excite the antenna. Small rectangular slots are fabricated on substrate to achieve multiband operation of 2.34–2.44, 3.73–3.77, 3.97–4.05, 4.59–4.79, 5.14–5.26, 5.49–5.57, 5.71–5.8 and 5.86–5.95 for lS1 1l ≤ −10dB. The designing has been done in IE3D …
Published in Journal of Electronic Design Technology · Vol. 4, Issue 1, 2013 · pp. 1–4 Read article
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Bendable Microstrip Antenna with Partial Ground for Textile Related Applications
Abstract: AbstractIn this article, the bendable microstrip antenna with the partial ground plane is proposed. The anticipated antenna is made of jeans substrate and applicable in the frequency range 1.90 GHz to 6.81 GHz with a bandwidth of 112.74 %. There is comparison reference antenna and anticipated antenna. The proposed bendable wearable antenna is used in the textile related application.Keywords: Bendable Microstrip Antenna, CST software, Jeans Substrate Cite this ArticleDeepa Rani, …
Published in Journal of Microwave Engineering and Technologies · Vol. 5, Issue 2, 2018 · pp. 17–21 Read article
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Design of Advanced Microstrip Patch Antenna for Wearable Application
Abstract: AbstractThis paper presents the review on design of wearable microstrip patch antenna at the operating frequency of 2.4 GHz for wearable application. This work presents a method of applying the combinational between wearable electronics and antennas. Textile antennas are the most interesting research. In telecommunications, microstrip patch antenna is increasing in recent years consequently textile antennas are increasingly demanding. Microstrip patch antenna is an ideal choice for integrated into clothes …
Published in Journal of Microwave Engineering and Technologies · Vol. 6, Issue 3, 2019 · pp. 18–22 Read article
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Design and Simulation of E-Shape Micro-strip Patch Antenna at 2.45GHz
Abstract: AbstractThis paper presents comparison of rectangular micro strip patch antenna and E-Shaped micro strip patch antenna operating at 2.45GHz. Two parallel slots are made into the basic rectangular patch design of micro strip antenna which resulted into desired E-shaped patch. The basic design consist of inset feed type and we have used dielectric substrate Fr4 epoxy whereas E-shaped patch consist of coaxial probe and RT Duroid as substrate. Both the …
Published in Journal of Microwave Engineering and Technologies · Vol. 7, Issue 1, 2020 · pp. 17–24 Read article
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An Overview of Elliptical Low Pass Filter by using Defected Ground Structure Method
Abstract: Calculation and differentiation of the response of elliptical low pass filter (LPF) with and without using defected ground structure (DGS) was done. In the present work, return loss, bandwidth and gain have been evaluated. All the designs are printed on the FR4 lossy substrate of dielectric constant ( ) of 4.3, substrate thickness of 1.6 mm and loss tangent of 0.02. Moreover, the effect of controlling parameters namely slots and …
Published in Journal of Microwave Engineering and Technologies · Vol. 4, Issue 2, 2017 · pp. 13–16 Read article
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Design of UWB Microwave Filter Using Quarter Wavelength Short-Circuited Stub
Abstract: UWB technology has progressed a lot in recent years for high speed wireless communications and other applications which need higher data rate and wider bandwidth. In this paper UWB bandpass filter is designed using quarter wavelength (λ0/4) short circuited stubs to improve the performance of UWB. Designed UWB filter gives higher performance and lower insertion loss in UWB spectrum. 5th order UWB bandpass filter is designed using CST MWS simulation …
Published in Journal of Microwave Engineering and Technologies · Vol. 2, Issue 2, 2015 · pp. 32–36 Read article
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Improvement of Mild Steel Surface Properties by Fly-ash + Quartz + Illmenite Composite Coating
Abstract: Plasma spray of fly-ash composite gives a stable improvement of surface properties for industrially used materials/equipments, which has become a major technological research area encompassing studies in a broad range from medical field, chemical field to ceramic field. In the present investigation, coatings are developed on mild steel substrates using fly-ash + quartz + illmenite composite (in a weight percentage ratio of 60:20:20) at various plasma torch input power levels …
Published in Journal of Materials & Metallurgical Engineering · Vol. 2, Issue 1-3, 2012 · pp. 125–131 Read article
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Heavy Fermions to the Scheme from Semimetals
Abstract: This article is a study about heavy Fermions to scope strange and unknown features of scattering accounted to conduction electrons in the metal. Nucleons generated by heavy metal compounds are named heavy fermions. These generate from magnetic impurities that are present in the matter as unusual distribution in particulate forms. Parameter of quasi-crystal lattice instability of these compounds has significance in response to behave as non-Fermi liquids affected under magneto-transport. …
Published in Journal of Materials & Metallurgical Engineering · Vol. 11, Issue 2, 2021 · pp. 15–22 Read article
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Organic Light Emitting Diodes (OLEDs)
Abstract: This paper gives the brief analysis of Organic Light Emitting Diodes (OLED) .OLED is a special type of solid-state lighting source. An OLED device is typically formed in a sheet with emissive organic layer(s) located between a cathode and anode and deposited on a substrate. The substrate can be rigid such as glass or metal or flexible made of a polymer plastic. The number of emissive layers depends on the …
Published in Journal of Microelectronics and Solid State Devices · Vol. 8, Issue 1, 2021 · pp. 23–30 Read article
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Structural and Electrical Properties of Low-Energy Ion Beam Kr-Irradiated In/Se Bilayer
Abstract: In the present work, In (~50 nm) over Se (~50 nm) thin films were deposited successively on an Si substrate by e-beam evaporation method under 2×10–5 mbar pressure. The In/Se bilayers were irradiated with low-energy ion beams of 350 keV Kr+1 with fluence of 3 × 1016 ions/cm2. The sample was subsequently characterized for phase formation using X-ray diffraction and thickness profile using Rutherford backscattering spectrometry analysis. In the pristine …
Published in Journal of Polymer & Composites · Vol. 11, Issue 1, 2023 · pp. 91–96 Read article
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Number of Laser Pulses Influence on Optical Properties of Pulse Laser Deposited ZnS Thin Films
Abstract: In present work four samples of ZnS thin films deposited on glass substrate using pulse laser deposition method with different number of laser pulses, the effect of the number of laser pulses on the optical properties of ZnS thin films was studied. Q-Switched Nd: YAG laser with the fundamental wavelength 1064 nm, laser pulse energy of 100 mj with fixed pulse repetition rate of 2 Hz were used, and varied …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 6, Issue 1, 2019 · pp. 1–9 Read article
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Effect of Spray Pyrolysis on the Properties of Chemically Sprayed CuO:Al Thin Films
Abstract: AbstractCuO:Al thin films were grown from 50 ml of spray solution on glass substrates by chemical spray at Ts=400°C using solution spray doping percentages of 0, 4, 5 and 6%. Copper acetate and aluminium chloride were used as Cu and Al sources, respectively. Independent of solution spray rate, the crystallites in CuO:Al films grow preferentially in the (201) plane, parallel to the substrates. The spray pyrolysis solution are using different …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 4, Issue 1, 2017 · pp. 1–5 Read article
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Amorphous composite coating’s ability to resist corrosion
Abstract: To increase the mechanical qualities of the coatings, amorphous composite coating was applied to the carbon steel substrate using arc spraying and remelted using a plasma remelting technology. Micro structural microscope, scanning electron microscope, energy dispersive spectroscopy, X-ray diffraction, and microhardness tester were used to examine the composition, microstructure, and characteristics of the composite coating. After the plasma remelting, the microstructure of the composite coatings for amorphous materials was more …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 9, Issue 2, 2022 · pp. 12–16 Read article
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Broadband, M- shaped Rectangular Cutting Slotted Antenna at 2.5 GHz for Mobile and WLAN Application
Abstract: In this paper, the authors have discussed M-shaped cutting slotted antenna for mobile and WLAN applications. After designing the antenna on 2.5 GHz frequency, the authors used the dielectric substrate 4.4, loss tangent 0.0012 and having the substrate height 1.6 mm and the antenna is showing the bandwidth 52.4%; the maximum return loss is −14.5 db.
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 2, Issue 1, 2015 · pp. 5–8 Read article
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CPW feed Flexible Antenna for Wireless Applications
Abstract: Flexible Microstrip CPW Feed Antenna using flexible FR-4 substrate is analyzed and presented over here. The Copper is used as conductive material for patch and CPW feed respectively. The performance in terms of return loss, gain, VSWR and radiation pattern is evaluated. The impedance bandwidth and gain of flexible antenna is 20.25% (2.179 GHz-2.665 GHz), 21.44% (3.232 GHz-4.026 GHz) and 1.4 dBi, 0.009 dBi respectively. The flexible property of the …
Published in Research & Reviews: A Journal of Embedded System & Applications · Vol. 6, Issue 3, 2018 · pp. 18–24 Read article
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Production of High Yield Amylase and Protease by Aspergillus oryzae using Solid-State Fermentation
Abstract: Aspergillus oryzae strains were isolated from different sources and its ability to produce industrial scale amylase and protease using solid-state fermentation was carried in the present study. Different fermentation substrates such as rice bran and wheat bran were evaluated for maximum enzyme yield. Enzyme production was maximum on rice bran and it was achieved with optimized fermentation parameter such as temperature 30°C, pH 4–6, moisture content 60%, inoculum size 0.2 …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 8, Issue 3, 2018 · pp. 71–78 Read article
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Characterization of Laccase Enzyme from Dye Degrading Bacterial Strains Isolated from Natural Sources
Abstract: The continuous growth in globalization and industrialization has increased the environmental pollution and one such major contaminant is various types of synthetic dyes. Microbial decolorization and degradation of these dyes through secretion of various extracellular enzymes is gaining importance owing to their eco-friendly nature. One such enzyme is laccase, a multicopper oxidase enzyme which has the ability to oxidize both phenolic and non-phenolic compounds through reduction of molecular oxygen to …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 9, Issue 1, 2019 · pp. 65–76 Read article