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1227 articles for “Phases”
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Dependency of pure liquid pool boiling heat transfer coefficient to bubble contact angle on roughened Brass heater in new model
Abstract: Heat transfer coefficient of nucleate pool boiling Nucleation is a basic part of phase transformations, which plays an important role in understanding and describing any phase change processes. For a boiling process, nucleation appears in the initial stage, and directly affects bubble formation and boiling intensity. According to the heterophase fluctuations which induce phase transition, the phase change has two main types. Classically, phase change caused by the fluctuation with …
Published in Emerging Trends in Chemical Engineering · Vol. 9, Issue 2, 2022 · pp. 29–36 Read article
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Modeling and Analysis of the Impact of Natural Gas Composition Variations on Combustion in a Dual Fuel Compression Ignition Engine
Abstract: The desire to meet rising energy demands while simultaneously adhering to stringent climate policies has propelled advanced combustion technologies and alternative fuels. Natural gas (NG) is an attractive, domestically-available alternative that has been shown to achieve high efficiencies when used on dual fuel engines. However, the composition of NG can vary significantly depending on the source and these variations may detrimentally impact engine operation. To study these effects, a dual …
Published in Journal of Automobile Engineering and Applications · Vol. 5, Issue 2, 2018 · pp. 1–14 Read article
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Performance Estimation of Self-Excited Induction Generator under Different Power Factor Loading
Abstract: The paper presents a model, which has been analyzed using genetic algorithm, in order to estimate the steady state performance of three-phase self-excited induction generator under unbalanced operation. The technique as proposed has been implemented on a 15 KW rating machine to see the effect of variation in load power factor of one phase and two phases simultaneously on phase voltages, phase currents, degree of unbalance, power output, power losses …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 7, Issue 2, 2016 · pp. 12–16 Read article
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Effect of Particle Size Mix Ratio of Adsorbent for AGO and PMS Adsorption: The Monitoring of Hydrocarbon Utilizing Bacteria in Water Media
Abstract: The effect of particle size mix ratio of clay and agro-based material of Plantain Ogoni Red (POR), Banana Native (BN), Banana Ogoni Red (BOR) and Plantain Agbagba 1 was monitored in AGO and PMS adsorption process based on formulated adsorbents. The characteristics of hydrocarbon utilizing bacteria was monitored in both salt and fresh wager media upon the effect of particle size and contaminants medium. Different particle size and contaminant medium. …
Published in Journal of Catalyst & Catalysis · Vol. 10, Issue 3, 2023 · pp. 08–16 Read article
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Microgrid System Control Identification and Evaluation for Enhanced Dynamic Operation
Abstract: Networking the distributed generators (DG) in a microgrid system involves a large number of electronic components and filters. Small changes or drifts in operating conditions as well as disturbances at the point of common coupling can excite the associated eigenvalues giving rise to slowly growing instability in the system. This article considers the stability of a microgrid system consisting of a micro alternator, wind generator, photovoltaic (PV) system, fuel cell …
Published in Journal of Control & Instrumentation · Vol. 9, Issue 1, 2018 · pp. 33–44 Read article
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Study of Effect of Various Dielectrics on the Performance of Electromagnetic Bandgap Based Microstrip Patch Antenna Structure
Abstract: Here the effect of various dielectrics on the performance of microstrip patch antenna with underlying electromagnetic bandgap structure is investigated. This unique antenna structure suppresses the surface waves and reflects plane waves with no phase change and thus acts as a perfect magnetic conductor (PMC). Dielectric losses are reduced due to the presence of EBG structure and bandwidth enhancement is observed when compared to the non-EBG structure. The effect of …
Published in Journal of Microwave Engineering and Technologies · Vol. 2, Issue 2, 2015 · pp. 13–18 Read article
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Study on Solar Water Heater with Thermal Energy Storage System
Abstract: AbstractRenewable power supplies are progressively gaining increasing importance in all the nations. Specially, solar electricity, being non-polluting and inexhaustible, has obtained extensive interest among scientists and engineers. Although, there are many advantages, an essential factor is that solar power is time structured power source with an intermittent individual. Consequently, some form of thermal power storage (TES) is necessary for the only usage of this energy supply. Thermal energy can be …
Published in Journal of Nuclear Engineering & Technology · Vol. 10, Issue 1, 2020 · pp. 24–36 Read article
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Correlation Between XRD Analysis and Mechanical Characterization Using Lens Manufactured Specimens Based on IoT Sensors
Abstract: The advent of the Internet of Things (IoT) has enabled the seamless integration of sensors into the manufacturing process, facilitating the collection of real-time data for analysis and optimization. The correlation between X-ray diffraction (XRD) analysis and mechanical characterization is investigated using specimens manufactured through the Laser Engineered Net Shaping (LENS) technique. The study focuses on three different materials: brass, SS202, and SS304. XRD analysis is employed to determine the …
Published in Journal of Polymer & Composites · Vol. 12, Issue 2, 2024 · pp. 41–58 Read article
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Active Power Control during Contingency using UPFC
Abstract: The ability of FACTs devices to control phase angle, bus voltages and line impedance in transmission line is what make it capable of controlling power flow. In this paper, we have studied one of most effective FACTS device known as UPFC. Analysis under the contingency is done using 10 bus systemand contingency condition is being introduced in three-phase, delta-delta connected transformer i.e. one base is damaged or accidently opened. Now, …
Published in Journal of Power Electronics and Power Systems · Vol. 11, Issue 2, 2021 · pp. 1–12 Read article
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Predictability of Equation of State (EoS)-based Gas Hydrate Models for Single and Binary Gas Mixtures
Abstract: The better models are necessary to design and understand the phase behavior of produced trapped natural gas from natural gas hydrates from subsea environments. Most of the models available in an open literature are primarily applicable at relatively low pressure condition thus making their use very limited for gas hydrate reservoir modeling. In order to produce methane from these gas hydrates, it is important to understand the phase behavior through …
Published in Journal of Petroleum Engineering & Technology · Vol. 2, Issue 1-3, 2012 · pp. 83–91 Read article
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Concept of Wound w.s.r. to Wound Healing
Abstract: Wound healing is an important but complicated process in humans. It consists of a multifaceted process governed by sequential yet overlapping phases including hemostasis/inflammation phase, proliferation phase and remodeling phase. Much effort has been focused on wound care with an emphasis on new therapeutic approaches and the development of technologies for wound management. Wound healing is a continuous process and divided into four phases. Regeneration and tissue repair processes consist …
Published in Research and Reviews : A Journal of Medical Science and Technology · Vol. 10, Issue 2, 2021 · pp. 36–43 Read article
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Development and Performance Evaluation of a Polyethersulfone–Graphene Oxide Ultrafiltration Membrane for Simultaneous Drug Delivery and Virus Removal: An Experimental Investigation
Abstract: The development of multifunctional ultrafiltration membranes for simultaneous controlled drug delivery and viral removal has gained considerable attention in biomedical engineering, pharmaceutical sciences, and water purification. Polyethersulfone (PES) membranes offer excellent thermal, chemical, and mechanical stability; however, their hydrophobicity can limit permeability, antifouling performance, and biocompatibility. This study proposes the fabrication of PES–graphene oxide (GO) ultrafiltration membranes using the phase inversion technique, with systematic variation of GO concentration to optimize …
Published in International Journal of Membranes · Vol. 3, Issue 2, 2026 Read article
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Connected Component Based Efficient Gait Recognition System
Abstract: AbstractGait recognition is one of the major security concerns for biometric authentication. In this work, an efficient gait recognition system using connected component based segmentation algorithm is proposed. This proposed system works on two different sub-phases, named as extraction phase and recognition phase. In the extraction phase, connected component based segmentation algorithm is applied on different gait images, taken from different sources and with the help of threshold value, decided …
Published in Journal of Image Processing & Pattern Recognition Progress · Vol. 4, Issue 2, 2017 · pp. 13–16 Read article
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Quality Inspection, Maturity Detection, and Size based Grading of Various Types of Mangoes using Machine Learning Methods
Abstract: Mango is the most significant and flavorsome fruit in most continents, especially in Asia. Mango grading is an important task in agro-industry. The grading process creates many problems during harvesting for mango growers. The manual grading process is performed by visual inspection and it is very time consuming and labor intensive. Due to different market prices and different market demand, automation in mango grading plays an important role to achieve …
Published in Journal of Image Processing & Pattern Recognition Progress · Vol. 7, Issue 1, 2020 · pp. 18–31 Read article
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THEORETICAL ANALYSIS OF ADVANCED PARABOLIC RECEIVER FOR DIRECT STEAM GENERATION
Abstract: Solar thermal power generation using water as a Heat Transfer Fluid (HTF) has gained interest recently, due to its ability to generate steam directly from the receiver tube. In this paper, a new theoretical model of receiver called Concentric Parabolic Trough Receiver (C-PTR) for direct steam generation is presented. The proposed model consists of Phase change material (PCM) sandwiched between two concentric cylindrical tubes. Binary Solar Salt commercially known as …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 2, Issue 1, 2015 Read article
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Characterization of Nanofluids Using Experimental and Analytical Methods for Different Concentrations
Abstract: A fluid containing nanometer-sized nanoparticles is called nanofluid. These fluids are engineered colloidal suspensions of nanoparticles in a base fluid. Nanofluids are a new class of fluids engineered by dispersing nanometer-sized materials (nanoparticles, nanofibers, nanotubes, nanorods, nanosheet, or droplets) in base fluids. They are two-phase systems with one phase (solid phase) in another (liquid phase). For a two-phase system, there are some important issues we have to face. One of …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 19, Issue 3, 2017 · pp. 23–31 Read article
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Crystal structure investigation of La doped BiFeO3 multiferroics by Rietveld analysis
Abstract: AbstractPolycrystalline materials with composition Bi0.8La0.2FeO3 multiferroics were prepared through solid state reaction method. The room temper ature XRD confirmed the very well synthesis of the sample without any trace of any impurity phase. The Rietveld analysis of the XRD pattern manifest the interesting evident of devising the structural phase not exactly Rhombohedral (R3c) but instead it exhibits a combination of 90% rhombohedral(R3c) and 10% α phase of BiFeO3 Triclinic (P1). …
Published in Research & Reviews : Journal of Physics · Vol. 7, Issue 1, 2018 · pp. 34–37 Read article
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Quantitative Study of Deformations using Electronic Speckle Pattern Interferometer (ESPI)
Abstract: AbstractThis paper discusses a research proposal to use temporal phase shifting technique of Electronic Speckle Pattern Interferometer (ESPI) for qualitative and quantitative study of deformations of various kinds. Proposed method for quantitative study is a five step phase shifting algorithm for extraction of phase information from the deformed object. Mechanical and thermal deformations in metallic thin films, metal plates and acoustic deformations are been planned for the study.Keywords: Temporal phase …
Published in Research & Reviews : Journal of Physics · Vol. 4, Issue 2, 2015 · pp. 1–7 Read article
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Energy-Momentum Dependent Potentials and np Scattering
Abstract: Energy-dependent equivalent local potential corresponding to a rank 2 nonlocal interaction isconstructed for the partial wave 0 and the higher partial wave equivalent localinteractions are developed by exploiting the formalism of super symmetry formalism. Themerit of our constructed potentials is judged through a model calculation. Our results are ingood agreement with standard data.Keywords: Equivalent local potential, non-local potential, scattering phase shifts, super symmetry formalismCite this ArticleAshwini Kumar Behera, …
Published in Research & Reviews : Journal of Physics · Vol. 8, Issue 3, 2019 · pp. 1–9 Read article
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The Overview of Software Testing: Types, Methods, and Levels
Abstract: Software development life cycle (SDLC) is a software development model consisting of different phases i.e., analysis, design, coding, testing, deployment, and maintenance. The analysis phase is the primary phase in which all the requirements are gathered and analysed which is further used for designing and coding. The next phase is testing. Software testing is a process of evaluating software so as to check whether it satisfies the requirements of the …
Published in Journal of Software Engineering Tools & Technology Trends · Vol. 8, Issue 4, 2021 · pp. 11–14 Read article