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119 articles for “Substrate”
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Experimental Study on Effect of Momentum Transfer Hydrocarbon Degradation in Stream System
Abstract: This research work demonstrates the significance of individual hydrocarbon degradation in a flowing stream system and the effect of the momentum transfer on the concentration of the individual hydrocarbon was examined on the influence of period of exposure (time) on the environment as well as the distance of dispersion. The substrate concentration variation was monitored with respect to time and distance as well as reciprocal of the substrate established by …
Published in International Journal of Composite and Constituent Materials · Vol. 6, Issue 2, 2020 · pp. 47–55 Read article
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Evaluation of Kinetic Parameters of Crude Oil Remediation Using Bio-Stimuant of Mint Leaf (Mentha piperita)
Abstract: Kinetic parameters of crude oil degradation as related to total petroleum hydrocarbon (TPH) were evaluated. The experiment was set-up using crude oil, loamy soil polluted and addition of bio-stimulant (nutrient based substance). The depletion of the pollutant was monitored within the contact time of 7 to 35 days. At intervals of 7 days samples were collected and analyzed to determine the TPH concentration at each bioreactor set-up, through subjecting the …
Published in International Journal of Chemical Engineering and Processing · Vol. 12, Issue 1, 2026 · pp. 62–71 Read article
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Optimization Strategies Towards Enhanced Production of Microbial Surfactants for Diverse Industrial Applications: A Futuristic Approach
Abstract: Chemical or synthetic surfactants being employed in numerous industries pose significant environmental hazards due to their persistence in the environment and potential toxicity to aquatic life. Biosurfactants are low-molecular-weight surface-active compounds that offer a promising alternative to surfactants owing to their less toxicity, biodegradability and biocompatibility nature. They are derived from a variety of natural sources, including bacteria, fungi, and plants. In recent years, there has been a surge in …
Published in International Journal of Industrial Biotechnology and Biomaterials · Vol. 10, Issue 1, 2024 · pp. 11–22 Read article
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Desizing of Cotton Fabrics With Enzymes for Improved Performance
Abstract: Desizing of cotton substrates with Amylase enzymes has been practiced since long time and is commercially successful. Amylases convert the water insoluble starches, used during sizing operation for enhancing the performance of the warp yarns, into water soluble products which are removed during subsequent washing. The use of enzymes for desizing is quite safe for the cotton substrates and do not cause any detrimental effect on the cotton cellulose unlike …
Published in International Journal of Industrial Biotechnology and Biomaterials · Vol. 2, Issue 1, 2016 Read article
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Biodiesel production using waste cooking oil: influence of catalysts on reaction parameters
Abstract: Over a century ago, Rudolf Diesel tested the used of vegetable oil as fuel for his automotive engine, several years later, bio-based diesel obtain from trans-esterification of animal fats or vegetable oils in presence of catalyst have been used as alternative automotive fuels to safe guard the environment and avoid global warming. Cost of production process has limited the diversification and generalizes usage of biodiesel, thus exploring avenues for cost …
Published in International Journal of Industrial Biotechnology and Biomaterials · Vol. 7, Issue 1, 2021 · pp. 1–8 Read article
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Microbial Biosurfactant Use in Food Industry
Abstract: Biosurfactants are now used mostly in pollution remediation; nevertheless, they have potential applications in many areas of the food industry. Some qualities of biosurfactants that might be researched in food processing and formulation include emulsion formation and stability, antiadhesive, and antibacterial activity. The potential applications of microbial surfactants in the food business are investigated., as well as the utilisation of agro-industrial wastes as alternative substrates for their synthesis. This study …
Published in International Journal of Industrial Biotechnology and Biomaterials · Vol. 7, Issue 2, 2021 · pp. 28–32 Read article
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Effect of Elephant Grass for the Remediation of Contaminated Swampy and Clay Soils Environment
Abstract: The research on the effect of Elephant grass and effectiveness to enhance remediation of crude oil polluted soil environment was studied. The experiment carried out in order to ascertain the performance of the locally sourced braw material for remediation of the contaminated soil. The physiochemical parameters of the contaminants such as crude oil, as well as the elephant grass in powdered form, swampy and clay soils were determined in terms …
Published in International Journal of Chemical Engineering and Processing · Vol. 9, Issue 1, 2023 · pp. 25–30 Read article
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Nanomaterials of Naturally Synthesized Carbon for Solar Energy Generation
Abstract: Energy and environmental uses for carbon nanoparticles are incredibly promising. It is necessary to develop a broad range of environmentally acceptable and greener synthesis techniques that make use of affordable, renewable, natural waste resources. Thus, greenhouse gas emissions, theusage of harmful materials, and the advancement of environmentally friendly technologies will all be reduced. The synthesis of new one-dimensional (carbon nanotubes, carbon nanofiber, etc.) and two-dimensional carbon-based products utilizing renewable substrates …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 8, Issue 1, 2022 · pp. 30–35 Read article
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A Comparative Analysis of a Single Feed Circularly Polarized Micro-strip Patch Antenna with U-Slot & L-Slot
Abstract: This paper compares the different parameters for a single feed circularly polarized Micro-strip patch antenna with U-slot and L-slot. The proposed antenna 1 contains a U-Slot and designed with DGS technique to reduce the size of antenna and proposed antenna 2 contains a L-slot and designed with DGS technique to reduce the size of antenna. The antenna with L-slot is designed on a high dielectric constant (εr = 10.2) substrate …
Published in International Journal of Broadband Cellular Communication · Vol. 1, Issue 1, 2015 · pp. 6–11 Read article
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Deposition and Characterization of ZnO Thin Films by Thermal Vacuum Thermal Evaporation Method for Photoconductive Sensor Application
Abstract: In this work we have deposited ZnO thin films using thermal evaporation method. The films have been deposited on silicon substrate for structural characterization and on glass substrate for optical characterization. The structural, surface morphology, optical properties and electrical properties of ZnO thin films were investigated systematically using X-ray diffractometer (XRD), scanning electron microscope (SEM), atomic force microscopy (AFM), ellipsometeric measurement and semiconductor parameter analyzer respectively. The deposited ZnO thin …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 2, Issue 1, 2016 · pp. 1–7 Read article
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Application of Rectangular Patch Antenna for a Moisture Content Sensor
Abstract: Micro-strip patch antenna is a low cost, easy to fabricate, light weight which is used for transmit and receive electromagnetic wave. This paper tells about the micro-strip rectangular patch antenna moisture sensor for different types of rice which are basmati rice and ambemohar rice both are easily available in Indian market and it has been measured by using two different substrate RT-duroid 5880 and FR4 lossy. A relationship is to …
Published in International Journal of Microwave Engineering and Technology · Vol. 1, Issue 1, 2015 · pp. 5–9 Read article
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A Single Band Hexagonal Shape Microstrip Dipole Antenna for LTE Application
Abstract: ABSTRACT The dipole antenna or dipole aerial is one of the most important and usually used types of RF antenna. It is widely used on its own, and it is also incorporated into lots different RF antenna layout where it forms the driven element for the antenna. In this paper, strive has been made to analyse new single band hexagonal shape dipole antenna for LTE application. The simulate and experiment …
Published in International Journal of Microwave Engineering and Technology · Vol. 5, Issue 1, 2019 · pp. 31–35 Read article
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Design and Analysis of Broadband Flexible Antenna for Remote System
Abstract: ABSTRACT In this anticipated antenna, jeans have been utilized as a substrate. The dielectric constant of substrate is 1.7 and patch has been made by copper tape. The benefits of jeans are long wearing, simple consideration attire, and cost effective. This anticipated antenna provides gain of 3.592 dBi at 5.27 GHz. In this paper, the analysis has been focused on S11, radiation pattern, directivity and polar plot. Keywords: Jeans, microstrip …
Published in International Journal of Microwave Engineering and Technology · Vol. 5, Issue 1, 2019 · pp. 19–23 Read article
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Combination of Triangular and Semi Circular Microstrip Patch Wideband Antenna for Wireless Application
Abstract: ABSTRACTThe combination of triangular and semi-circular wideband dipole antenna with single feed line is proposed for wireless application. The proposed antenna consists of Arrow shaped patch antenna operating at the wideband frequency of 1.6305GHz-3GHz. In this antenna material used for designing is FR-epoxy, height of the substrate is h=1.6mm. Dielectric substrate and relative permittivity are =4.3, tanδ=0.02. Keywords: Dipole antenna, Microstrip patch antenna, Wideband antenna.Cite this Article: Sandeep Barua, Combination …
Published in International Journal of Microwave Engineering and Technology · Vol. 5, Issue 2, 2019 · pp. 8–12 Read article
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Studies of Nano-catalyst
Abstract: Nano-catalysts are studied in this article to compose single allocate transitional or novel atom on substrate in place of usual nano-configured atoms aligned to Pt, Pd, Ru, Rh and Ir. Acid to base proposition subjected to form stable catalyst composes from transition metals in place from expensive novel metals. In novel metal nano-cluster catalyst compose has selected scheme at rest with no or reverse consequence to give rise well defined …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 7, Issue 1, 2021 · pp. 13–18 Read article
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Combine Effect of Dry and Decomposed Raffia Palm in the Bioremediation of Oil-based Drill Cutting
Abstract: This study determines the effect of dry substrate and decomposed raffia palm for degradation of oil- based drill cuttings bioremediation. The remediation process was effectuated using dry and decomposed raffia palm. The experiment was carried out at the research Centre located at Agricultural and Environmental Engineering departmental workshop in Rivers State University, Port Harcourt. Samples of oil-based drill cuttings were bulked in eleven reactors with four replications (T1, T2, T3-T11). …
Published in International Journal of Composite Materials and Matrices · Vol. 9, Issue 1, 2023 · pp. 21–29 Read article
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A review on Surface engineering and its methods.
Abstract: Surface engineering is the process of creating a surface/substrate composite system that achieves performance that neither the surface composition nor the substrate alone can achieve. This is achieved by modifying the substrate surface to improve beauty, provide environmental protection, or increase mechanical or physical performance.. Surface engineering plays a significant role in tribology and modifies or coats a component's surface to improve its properties. This article logically analyses a wide …
Published in International Journal of Manufacturing and Materials Processing · Vol. 8, Issue 1, 2022 · pp. 20–23 Read article
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Cryogenic Electron Microscopy Reveals Conformational Dynamics and Catalytic Mechanisms of Human Fatty Acid Synthase in De Novo Lipid Biosynthesis
Abstract: Fatty acid synthase (FASN) is a multifunctional homodimeric enzyme central to de novo fatty acid synthesis in mammals. Recent cryogenic electron microscopy (cryo-EM) studies have illuminated the structural basis of FASN catalysis, revealing multiple conformational states throughout the synthesis cycle. These findings show that the acyl carrier protein (ACP) domain dynamically shuttles substrates between spatially separated active sites, while the condensing and modifying regions remain structurally stable. In contrast to …
Published in International Journal of Analytical and Applied Chemistry · Vol. 12, Issue 2, 2026 · pp. 8–25 Read article
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Kinetic and Mechanistic Study of Isomenthol Oxidation by Trichloroisocyanuric Acid in Acidic Medium
Abstract: The oxidation reaction of isomenthol with trichloroisocyanuric acid (TCICA) was systematically investigated in acidic medium to understand its kinetics, reaction mechanism, and overall reactivity. The study was carried out under pseudo-first-order conditions by maintaining a large excess of isomenthol relative to TCICA, allowing accurate determination of the reaction rate. The progress of the oxidation reaction was monitored kinetically, and the obtained data revealed that the reaction follows first-order kinetics with …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 12, Issue 2, 2026 · pp. 1–7 Read article
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Heat Generated Simulation with Bacteria and Fungi inCrude Oil Remediation in an Aerated Lagoon
Abstract: Studies on the heat generated by bacteria and fungi in an aerated lagoon were monitored by theapplication of MATLAB computed software simulation. Mathematical models were developed in termsof substrate utilization by microbes and correlated with the Monod’s equation model which revealedthe trend of heat generated at different operating temperature of 15°C, 30°C, 45°C, 60°C, 75°C, 90°C,105°C and 120°C. The heat generated varies with increase in the microbial concentration as favoredby …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 12, Issue 1, 2026 · pp. 27–45 Read article