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406 articles for “Surface model”
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SPICE Modeling of LDMOSFET Transistor
Abstract: AbstractHigh voltage integrated circuits, these days are the most viable alternatives to discrete circuits for various applications. The popular amongst them is the lateral double diffused MOS transistor (LDMOS). It is based on the lightly doped drain (LDD) concept. The constraint that occurred in modeling LDMOS is to minimize the on-resistance along with maintaining a high breakdown voltage. To achieve the objective, the help of RESURF (Reduced Surface Field) concept …
Published in Journal of Semiconductor Devices and Circuits · Vol. 3, Issue 1, 2016 · pp. 42–57 Read article
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Surface Plasmon Resonance (SPR) Based Dual Channel Optical Waveguide for Biosensing Application
Abstract: Surface plasmon resonance (SPR) biosensor is one of the optical sensors that exploit the specific properties of electromagnetic waves. Thus, SPR biosensors can be used for real time monitoring in the field of environmental science. It is a label-free technique that is used to detect biological analytes and analyze the binding interactions between a molecule in the liquid sample and an immobilized biomolecular recognition element that is placed on the …
Published in Recent Trends in Sensor Research & Technology · Vol. 3, Issue 2, 2016 · pp. 29–35 Read article
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An Overview of Recent Advances in Viscoelastic Surfactant based Fracturing Fluid Technology
Abstract: High percentages of oil and gas wells are hydraulically fractured worldwide in order to make economically producible at an efficient production rate. Cross-linked polymer fluids are in use for decades to stimulate oil and gas wells. Even though these fluids exhibit exceptional viscosity, thermal stability, proppant transportability and fluid leak-off control; extensive formation damage by polymer residues demanded a clean fracturing fluid technology. New generation of fracturing fluids based upon …
Published in Journal of Petroleum Engineering & Technology · Vol. 2, Issue 1-3, 2012 · pp. 11–25 Read article
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Hybrid Numerical–Artificial Neural Network Study of Chemically Reactive MHD Nanofluid Flow Incorporating Thompson–Troian Slip and Stefan Blowing
Abstract: Boundary layer behaviour in chemically reactive nanoliquid is significantly affected by surface conditions, magnetic fields, heat and mas transfer mechanisms. However, the combined impact of Stefan blowing and nonlinear Thompson–Troian slip under inclined magnetic fields remains mostly unexplored, particularly in mixed convection flows. In this research work, the flow of a chemically reactive nanoliquid over a permeable surface is investigated by considering the Troian slip, inclined magnetic fields, Stefan blowing, …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 409–425 Read article
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Hydrological Modeling and Classification of Various Models: A Review
Abstract: Hydrology is the science which deals with the existence, movement and distribution of water of the earth, below the earth and earth’s atmosphere. As one of the branches of earth science, hydrology deals with the water in waterways and lakes, precipitation and snow, snow on the terrestrial and water underneath the earth and rocks. Hydrology has its links with meteorology, geography, measurements, science, material science and liquid mechanics. Engineers and …
Published in Journal of Water Resource Engineering and Management · Vol. 13, Issue 1, 2026 · pp. 1–5 Read article
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The Advanced Foam Materials Production in Microgravity using the Process of Vibroturbulization
Abstract: Recently, the task of the intensification of the existing technological processes using the intensivemixing of different environment, which are characterized by different densities (water + gas, water +solid particles + gas, water + oil so forth) is actual. The conducted studies determined that at acertain frequency and vibration acceleration of vibration, a resonant phenomenon occurs—vibroturbulization, in which the above of the fluid surface air in a vibrating vessel with fluid …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 12, Issue 1, 2021 · pp. 34–47 Read article
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Thermal Modelling and Simulation of Brushless D.C. Motor for Electromechanical Actuation
Abstract: A lumped-parameter thermal model is described which provides both a steady-state and transient solution to the temperatures within an electrical machine. The model is sufficiently complex to identify the temperatures at most locations in the machine, including the peak temperatures in the end winding and the surface temperatures of the rotor. It is formulated out of purely dimensional information and constant thermal coefficients and is therefore easily adapted to a …
Published in Journal of Aerospace Engineering & Technology · Vol. 3, Issue 1, 2013 · pp. 16–28 Read article
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Semiempirical Modeling and Docking Studies of Pyrrole-2-Carboxaldehyde Schiff Bases
Abstract: Docking stimulation of antimicrobial compound SB7 against the active site of Mandelate racemase has been accomplished. This compound was engaged in various types of interactions with the binding site residues. Further, molecular modeling of all the target compounds was performed using MOPAC 2016 and various parameters were identified. SB1, SB2 and SB5 were found to be most stable compounds and had highest dipole moment. The compound SB8 came out to …
Published in Research & Reviews: A Journal of Drug Design & Discovery · Vol. 3, Issue 3, 2016 · pp. 9–15 Read article
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Implementations and Optimization in Design of Radiant Cooling Concept with Room Floor and Walls
Abstract: AbstractIn this paper, in order to accurately simulate room thermal performance, a coupling strategy between the room floor and wall with Computational Fluid Dynamics (CFD) simulation of the indoor airflow in a room, and the radiation heat transfer among the internal surfaces of its space and wall is calculated. Mostly research of radiant cooling is performed with radiant pipes in floors and ceiling, so we performed our analysis by installing …
Published in Journal of Thermal Engineering and Applications · Vol. 7, Issue 1, 2020 · pp. 15–23 Read article
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Toxicological Optimization and Assessment of Buccal Films Containing Felodipine Co-crystals to Enhance Bioavailability
Abstract: The preformulation study of felodipine was carried out and it was found that the drug is poorly water soluble. The co-crystals were prepared using three different co-formers sorbitol, ascorbic acid and oxalic acid. The solublity enhancement was observed in combination with sorbitol compared to other co-formers used. The characterization of co crystals was performed like PXRD, FTIR, SEM Analysis. XRD results indicates the amorphous form of the drug. The co-crystals …
Published in Research and Reviews: A Journal of Toxicology · Vol. 14, Issue 2, 2024 · pp. 10–29 Read article
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Optimization of Type-4 Plastic Liner Composite Overwrapped Pressure Vessel Design
Abstract: Composite Overwrapped Pressure Vessels (COPVs) are prominently utilized for the storage of gases at high-pressure. Their widespread adoption is because they are significantly lighter weight compared to complete metal counterparts, but requires specialized design, and manufacturing process. This research employs finite element modelling to analyse the stress and failure assessments on a specific Type-IV COPV with plastic liner as core cylinder. This study aims to optimize COPV design by considering …
Published in Journal of Polymer & Composites · Vol. 13, Issue 3, 2025 · pp. 405–412 Read article
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Light-Matter Interactions in Molecular Photochemistry
Abstract: Molecular photochemistry explores the ways of molecules interaction with light, absorb photons, and excited‐state processes, and ultimately conversion of photon energy into chemical change. Core concepts of this innovative and relevant field are matter interaction like electronic, vibrational, and rotational transitions; non‐adiabatic couplings; energy & electron transfer; and light–matter coupling in weak and strong regimes. This article briefly surveys the multiplicity of these interactions, from the fundamentals of photon absorption …
Published in International Journal of Photochemistry and Photochemical Research · Vol. 3, Issue 2, 2025 · pp. 33–42 Read article
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Modeling of Thermoelastic Hollow Cylinder by the Application of Fractional Order Theory
Abstract: The present work deals with the Mathematical Modelling of Thermoelastic Hollow Cylinder occupying the space by the Application of Fractional Order Theory. A hollow cylinder is subjected to convective boundary condition on upper and lower plane surface also zero temperature is maintained on the curved surfaces. The attempt made to analyze the temperature, displacement and thermal stresses of cylinder by using Integral transform technique. Numerical results are computed and represented …
Published in Research & Reviews : Journal of Physics · Vol. 8, Issue 1, 2019 · pp. 46–57 Read article
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QSAR Modeling of a Novel Series of Methoxylated Chalcones as Antioxidant Agents Against Gram-Positive Bacteria Staphylococcus aureus
Abstract: Background: Chalcones are aromatic ketones belonging to the flavonoid family. They are plant-based compounds and are widely found in nature. For centuries, these bioactive molecules have been utilized in various traditional medicines for the treatment of several ailments. Chalcones have antibacterial, antiviral, antimalarial, antifungal, antioxidant, and antileishmanial properties. They are also used to treat inflammation and cancer. Chalcones act as angiogenesis inhibitors, an important factor in cancer progression and metastasis. …
Published in International Journal of Biochemistry and Biomolecule Research · Vol. 3, Issue 1, 2025 · pp. 28–34 Read article
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Effect of Various Process Parameters on MRR in Manual Air Plasma Arc Cutting of AISI 1017 Mild Steel using ANN
Abstract: As per recent industrial surveys it is investigated that manufacturing companies define the quality of thermal cutting process by the dimension of work material and cutting surface appearance. Therefore, the surface roughness and material removal rate (MRR) are primarily considered. In this work the effect of three input parameters air pressure (P), cutting current (I) and cutting velocity (v) on material removal rate (MRR) is obtained experimentally. An artificial neural …
Published in Journal of Mechatronics and Automation · Vol. 2, Issue 2, 2015 · pp. 8–14 Read article
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Machine-Learning-Assisted Development of Polymer-Biochar Composite Adsorbents for the Removal of Heavy Metals from Gomti River Water
Abstract: Rapid urbanization, industrial discharge, and agricultural runoff pose a significant threat to freshwater sustainability and public health. Within these ecosystems, polymer pollutants—such as microplastics, nanoplastics, synthetic fibres, and additive residues—have emerged as persistent vectors capable of adsorbing and transporting toxic heavy metals. Because these polymeric contaminants dynamically interact with conventional aquatic parameters to alter pollutant mobility and ecological risk profiles, there is an urgent need to transition from passive environmental …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 · pp. 72–95 Read article
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Fluent Simulation & Analysis of Earth Heat Exchanger with Air as a Cooling Medium
Abstract: Because of the temperatures differential between the environment and the subsurface, an Earth Air Tube Heat Exchanger (EATHE) uses the thermal energy of the ground for air conditioners in the winter and air cooling in the summer. Everyone can lower the amount of energy needed for space heating or cooling with the aid of EATHE. However, it is challenging to create precise energy simulations and designs for calculating surface heat …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 11, Issue 1, 2024 · pp. 18–26 Read article
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Modelling of Wind-Wave Misalignment for Floating Offshore Wind Turbines
Abstract: The influence of the combined effects of wind and waves onto the performance of a floating offshore wind turbine (FOWT) is analyzed. A study of the wind conditions relative to the position of the aerodynamic rotor has been made, analyzing how the angle of incidence of the wind (angle of attack) varies with the wind direction and the inclination of the wind turbine mast as a consequence of the undulatory …
Published in Journal of Offshore Structure and Technology · Vol. 8, Issue 2, 2021 Read article
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Effect of WEDM Machining Parameter on the MMC: A Review
Abstract: Recent area of manufacturing is highly focus on good accuracy and a complex shapes are mechanized by the advanced machining operation. The wire electrical discharge machining (WEDM) have the ability to produce the complex shapes with having high accuracy. The WEDM is non-contact type machining operation and is used for metal materials as well as Metal Matrix Composites (MMCs), ceramics composites those have many application in vast areas such as …
Published in International Journal of Fracture Mechanics and Damage Science · Vol. 1, Issue 1, 2023 · pp. 1–7 Read article
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Corrugated Tube Shell-and-Tube Heat Exchanger Using Epoxy-Based Polymer Composite Coatings for Lightweight and Efficient Thermal Systems
Abstract: Corrugated tube geometries are widely recognized for their ability to enhance heat transfer through boundary layer disruption and secondary flow generation. In this study, a combined experimental and computational investigation is carried out to evaluate the thermo-hydraulic performance of a shell-and-tube heat exchanger incorporating corrugated stainless steel tubes integrated with an epoxy-based polymer composite coating and housed within a mild steel shell. Unlike conventional metallic systems, the present work introduces …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 603–617 Read article