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769 articles for “Mathematical”
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MODELLING OF SOLID DESICCANT DEHUMIDIFIER WHEEL
Abstract: Abstract Desiccant cooling system performance, its energy saving potentials, its modelling techniques have subject of intense interests for HVAC Engineers. These systems have yielded number of system designs and simulation methods for cooling methods. The heat and mass transfer phenomenon, governing equation for Desiccant dehumidifier wheels are elaborated in details. The mathematical modelling of desiccant wheel is required to increase its performance by using novel designs at low regeneration temperatures. …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 3, Issue 2, 2016 · pp. 49–60 Read article
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Influence of Internal and External Dampings on Shaft Whirl Speeds
Abstract: A mathematical model is developed for the estimation of rotor forward and backward whirl speeds by considering the stationary and rotational dampings. Stationary damping includes external viscous damping in the bearings and rotational damping includes internal viscous and hysteretic damping in the shaft material. The rotors in gas turbines and steam turbines commonly used in military and commercial rotating machines operate at high speeds. These rotors are provided with a …
Published in Trends in Machine design · Vol. 3, Issue 3, 2016 · pp. 1–11 Read article
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SIMULATION OF COLD DIE COMPACTION ALUMINA POWDER
Abstract: Compaction process was analyzed mathematically by predicting a steady-state mathematical model in order to give more description and understanding for the mechanism of this process. Numerical investigation has been carried out on axisymmetric cylindrical parts using the finite difference method with relaxation technique to examine the physical significance of constitutive model to produce the pressure gradients during compaction. The pressure distribution model is then typically coupled with empirical functions relating …
Published in Trends in Mechanical Engineering & Technology · Vol. 1, Issue 1, 2011 · pp. 1–21 Read article
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A Novel Approach in the Formulation of a Direct Contact Heat Exchanger
Abstract: Normal 0 false false false EN-US X-NONE X-NONE The paper is concerned with the development of a mathematical approach for a direct contact heat exchanger. An air washer has been considered for the analysis and a one dimensional model using mass and energy balance equation has been developed. The new solution presented for the model shows an excellent agreement with the literature available in the air conditioning. The effect on …
Published in Trends in Mechanical Engineering & Technology · Vol. 1, Issue 2-3, 2011 · pp. 1–8 Read article
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Design and Analysis of MEMS based Piezoelectric Accelerometer Having Square Shaped Proof Mass
Abstract: In any spacecraft launching program, the most prominent issue is to locate the spacecraft or satellite, in particular orbit of any particular planet. Now, while making the position of that spacecraft in space, abrupt changes in velocity occur and these velocity changes can break the controlling circuitry of the system since the velocity changes occur at very high environmental pressure. The designed device converts the deflections due to mentioned pressure …
Published in Journal of Aerospace Engineering & Technology · Vol. 5, Issue 2, 2015 · pp. 72–78 Read article
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Design of Model-based Controllers for a CSTR Process
Abstract: The objective of this paper is to propose suitable control strategies for controlling highly nonlinear system represented by the mathematical model of the jacketed continuous stirred tank reactor (CSTR) with so called Van de Vusse reaction. The operating point of the reactor is chosen so as to give maximum yield of the desired product. The mathematical model of reactor is obtained by considering the feed flow rate (Fr) as the …
Published in Journal of Instrumentation Technology & Innovations · Vol. 5, Issue 1, 2015 · pp. 13–20 Read article
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The Control by the Behavior of Gas Bubble, Fastened to the Solid Surface, Using Nonpolar Reagent and Blowing Agent Actions under Changing of the Acceleration of Gravity
Abstract: The study of separation or retention of a gas bubble, fastened to solid surface in the liquid with varying acceleration of gravity currently is relevant in connection with the solution of the problem of degassing fuel in an airplane during overloads. Solving of the problem comes to investigation of the possibility of control by the behavior of the gas bubble, fastened to the solid surface using nonpolar reagent and blowing …
Published in Journal of Aerospace Engineering & Technology · Vol. 9, Issue 3, 2019 · pp. 40–51 Read article
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A Review on Computational Fluid Dynamics
Abstract: Computational Fluid Dynamics (CFD) seems to be a program that utilizes mechanics, computational mathematics, and computer science technologies to model and simulate how fluid that’s also, gas or liquid, flows. Descriptive and analytical forecasts may be integrated with the aid of CFD, which utilizes computational mathematics methods, computational programming and networking tools to create, grasp, build and then forecast the necessary possibilities. This paper would address a list of concerns …
Published in Journal of Aerospace Engineering & Technology · Vol. 10, Issue 3, 2020 · pp. 1–6 Read article
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Aerodynamics: Wind Load on Bridge and Construction
Abstract: This article is description about wind load correspondence for bridge constructions. Calculation of high pier has conclusive scheme around transverse direction of wind load for long span girder bridge. Ethic has scoped by code of pursue for design of highway bridge and culvert and load code for design of as build structure. Assessment of expected environmental loads is basic in design of engineering structures that influences chain of load carrying …
Published in Journal of Aerospace Engineering & Technology · Vol. 11, Issue 2, 2021 · pp. 47–54 Read article
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Bibliometric Analysis of an Open Access Journal ‘Fixed Point Theory and Applications’ (2006–2010)
Abstract: AbstractThis article presents bibliometric analysis of open access scholarly journal ‘Fixed Point Theory and Applications’. The analysis covers the journal’s articles from the year 2006 to 2010. The bibliometric analysis looks into the issues like total number of articles published during given time period, citation analysis, authorship pattern, forms of documents cited, year-wise distribution of citations, geographical distribution of contributions, authors with maximum contributions and journal metrics. The findings reveal …
Published in Journal of Advancements in Library Sciences · Vol. 3, Issue 2, 2016 · pp. 35–49 Read article
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BIS Index Numbers for the Turbulence in the Environment & Ecology: Prediction of the Future of the Earth, Galaxies and Universe due to Intense Biological Processes of Infinite C* Character
Abstract: AbstractBIS is the so called breakdown of integrated system. Due to this breakdown BIS effect gets created and causes turbulence in the environment and ecological system. This causes natural occurrences like earthquakes, sea storms, hurricanes, tsunami, bird flu and internal changes like changes in genomic pattern. The mathematics of slaughtering living creatures is extremely complex, unpredictable and incomprehensible. However, finding BIS index numbers can help us in estimating the future …
Published in Research & Reviews : Journal of Ecology · Vol. 3, Issue 2, 2014 · pp. 23–27 Read article
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Schrödinger Cat's Experiment's Interpretation and Parallel Universe or Multiple Universes
Abstract: Quantum mechanics provides us most fundamental descriptions of our most early universe, but there is a long-standing debate amongst theoretical physicists about what all these mathematics really mean in real world? The present three-dimensional (3D) universe, we humans experience daily since our birth, is probably just one of an enormous numbers of essentially classical worlds, and all quantum phenomena arise from a universal force of repulsions that prevented many universes …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 5, Issue 1, 2016 · pp. 35–52 Read article
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Excerpt from the Function of a Complex Variable
Abstract: The need to derive a function arose while trying to find a universal way to determine the tangent of a curve in geometry and velocity in mechanics. In mathematical analysis, in a branch of mathematics, a derivative is a measure of how (how fast) a function changes its values when its input values change. The derivative of the curve at a point represents the coefficient of the direction of the …
Published in Research & Reviews : Journal of Statistics · Vol. 10, Issue 2, 2021 · pp. 1–7 Read article
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Modulation of Receptor Proteins: A Recent Paradigm in Drug Discovery and Target
Abstract: The main aim in drug discovery is to design different ligands those work on specific drug targets. However, various effective drugs work through the modulation of many proteins than single target. Advancement in system biology are establishing a phenotypic strength and a network structure, which suggests that, the excellent selective compounds may be performed less than desired clinical efficacy in comparison to multi-target drugs. In this new appreciation of the …
Published in Research & Reviews: A Journal of Drug Design & Discovery · Vol. 5, Issue 1, 2018 · pp. 14–24 Read article
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Thermo-Parasitic-Aware Adaptive Switching Model (TPASM) for High-Frequency Microelectronic Power Devices
Abstract: The increasing switching frequency of modern solid-state semiconductor devices has intensified the influence of parasitic inductance, parasitic capacitance, temperature-dependent conduction losses, and transient voltage and current stresses. Conventional switching-loss models generally treat these effects independently, resulting in limited accuracy when the device operates under high-frequency and thermally varying conditions. This paper proposes a Thermo-Parasitic-Aware Adaptive Switching Model (TPASM) for coupled electrical, thermal, and parasitic analysis of high-frequency solid-state devices. The …
Published in Journal of Microelectronics and Solid State Devices · Vol. 13, Issue 2, 2026 Read article
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Model to Predict a Ratio Control of Hydrocarbon Acid and Water in a Packed Bed Reactor
Abstract: Model development was carried out to examine the ratio of hydrochloric acid gas and water in a packed bed reactor. The research predicted increase in output with increase in time, revealing the effectiveness ratio control of hydrochloric acid separation from water using absorption column mechanism. The density of the products played an active role in the separation process as well as in control action function. The developed model can be …
Published in Emerging Trends in Chemical Engineering · Vol. 10, Issue 4, 2023 · pp. 45–52 Read article
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Modal Analysis of RC Masonry Infill Model and Prototype Frames with Openings
Abstract: Modal evaluation is the technique of figuring out the inherent dynamic traits of the shape in phrases of herbal frequencies and mode shapes and the usage of them to create a mathematical version for its dynamic behavior. The dynamics of a structure is defined by frequency and position. Modal evaluation offers the records regarding to exceptional modes of vibration, exceptional form that may be taken up via way of means …
Published in Journal of Structural Engineering and Management · Vol. 10, Issue 4, 2023 · pp. 13–21 Read article
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An Optimize Formulation to Synthesis of size Controlled Hydrophobic Starch Acetate Nanoparticles using Box- Behnken Design
Abstract: The best way to improve the overall performance of native starch is by chemical modification. In recent years, hydrophobically modified starch has attracted considerable attention for the design and manufacture of novel nanoparticulate drug delivery carriers. The purpose of this research was to synthesize hydrophobic starch nanoparticles (NPs) and to optimize process factors through the use of response surface methodology (RSM). The corn starch acetate (CSA) NPs was synthesized using …
Published in Journal of Polymer & Composites · Vol. 10, Issue 4, 2022 · pp. 32–54 Read article
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Power Estimation Approach for Artix 7 FPGA using Machine Learning Technique
Abstract: This paper presents the power estimation approach using a suitable machine learning technique. Artix7 FPGA has been chosen as the target FPGA (Field Programmable Gate Arrays) platform for understanding the methodology of power estimation. There are various approaches of power estimation for FPGAs that have been given in the literature viz. probabilistic, statistical, and LUT- based, etc. In the past few years, the demand for hand-handled devices like smartphones, tabs, …
Published in Research & Reviews: A Journal of Embedded System & Applications · Vol. 9, Issue 4, 2021 · pp. 1–5 Read article
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Continuous-Time Modelling of the Two-Input Fourth Order DC_DC Converter
Abstract: Two-input fourth-order integrated (TIFOI) converter is designed to process the power from two different sources Vg1 and Vg2. This converter facilitates regulation of dc-bus voltage and LVS current. In the power conversion process it performs bucking operation for first dc source Vg1, buck-boost operation for the second source Vg2. Power stage dynamics of the TIFOI converters is modeled using the state-space analysis. The system modelling plays an important role in …
Published in Journal of Control & Instrumentation · Vol. 12, Issue 4, 2021 · pp. 1–11 Read article