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401 articles for “numerical techniques”
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Design and Fabrication of Automated Rice Huller
Abstract: This paper describes the detailed procedure for design and fabrication of rice huller machine. A rice huller or rice husker is an agricultural machine used to automate the process of removing the chaff (the outer husks) of grains of rice. Throughout history, there have been numerous techniques to hull rice. Traditionally, it would be pounded using some form of mortar and pestle. An early simple machine to do this is …
Published in Trends in Mechanical Engineering & Technology · Vol. 5, Issue 2, 2015 · pp. 34–38 Read article
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Air Intake Aerodynamics
Abstract: Air Intake aerodynamic design for fighter aircraft is described herein. Axial flow compressor is considered. The air intake pressure recovery mass flow requirement, flow distortion and flow stability are explained. Some design related issues are addressed. Air intakes of varied design are compared. Computational numerical techniques are brought out for design and analysis. Keywords: Aerodynamics, Compressor, Air intake
Published in Journal of Aerospace Engineering & Technology · Vol. 4, Issue 2, 2014 · pp. 22–32 Read article
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On The Time-Domain Analysis of the Electromagnetic Transients in High-Voltage Line Towers
Abstract: This paper presents an efficient and direct method for the time-domain transient analysis of high voltage power line towers. A Mathematica-based numerical solution of the governing set of simultaneous partial differential and algebraic equations is proposed. The results of a corresponding computer code are presented and discussed. A comparison with other more sophisticated analytical time-and Laplace-domain approaches is presented. In addition to the possible use of the EMTP transients’ program, …
Published in Journal of Nuclear Engineering & Technology · Vol. 13, Issue 2, 2023 · pp. 12–20 Read article
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Capacity and BER Performance Analysis of Single Cell Massive MIMO with Various Precoding Techniques
Abstract: AbstractMassive Multi Input Multi Output (MIMO) is one of the promising technologies which will facilitate the 5th generation wireless communication system (5G) in the near future. It also goes by other names such as, large MIMO, hyper MIMO, full-dimension MIMO and ARGOS. In this technology the Base Station is incorporated with a large number of transmitting antennas (e.g., Hundreds, thousands). A large number of antenna help to focus the energy …
Published in Journal of Communication Engineering & Systems · Vol. 6, Issue 1, 2016 · pp. 1–14 Read article
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Numerical Simulation and Design of Efficient Brain Tumor Segmentation with Hybrid Fuzzy K-Means Clustering Technique
Abstract: The goal of this study is to detect brain cancers from MRI images using a Matlab GUI interface. Using the GUI, this application may employ numerous combinations of segmentation, filters, and other image processing methods to produce the best results. We begin by applying the Prewitt horizontal edge-emphasizing filter on the image. “Watershed pixels” are the next step in detecting tumours. The most essential aspect of this project is that …
Published in Journal of Advancements in Robotics · Vol. 8, Issue 3, 2021 · pp. 8–17 Read article
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An Overview of Crack and Damage Detection Using Various Techniques
Abstract: In present time, researchers have given observations on damage detection techniques using different types of methods. Importance in several damage detection techniques has significantly improved over the past two decades and numerous detection techniques created on model study methods have been established. Crack damage detection and condition observing of configurations have developed ever-increasing concerns. Generally best accessible techniques are constructed on visual review or localized valuation processes such as acoustic, …
Published in Trends in Mechanical Engineering & Technology · Vol. 6, Issue 2, 2016 · pp. 43–50 Read article
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An Efficient RNS Based Sparse Kogge Stone Parallel Pre-fix Adder with Filter
Abstract: AbstractLow power very large-scale integration (VLSI) circuits are important for designing of high performance and portable devices. Along with that the high speed, small area and low cost are also the main considerations of VLSI circuits. The importance of low power is increasing day by day because of changing trend, packaging and cooling cost, portable system and reliability. This paper presents the design of Digital FIR filter using reverse converter …
Published in Journal of Semiconductor Devices and Circuits · Vol. 5, Issue 1, 2018 · pp. 43–51 Read article
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Study on the Rocking Phenomenon of Parachute Rope
Abstract: With the constant development of computer technology and the development of numerical simulation techniques, the simulation of the dynamics of the parachute is becoming increasingly accurate. To eliminate the effects of large deformation of the grid in the conventional parachute simulation, we chose the parachute model using the smooth particle hydrodynamics method and performed a steady-state fluid-solid coupling numerical simulation, which is in good agreement with the calculated gas power …
Published in Trends in Mechanical Engineering & Technology · Vol. 15, Issue 2, 2025 · pp. 1–7 Read article
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A Comprehensive Review of Magnesium Matrix Composites (MMCs) and Its Manufacturing Techniques
Abstract: Magnesium matrix composites (MMCs) can overcome the mechanical properties of magnesium alloys by adding reinforcements. These MMCs have properties of hydrogen storage, high specific stiffness and strength, superior dimensional stability, exceptional shock absorption capability, and excellent electromagnetic shielding. No other component can compare with these unique and remarkable capabilities. In recent days, the MMCs have become more attractive in many industries, like aerospace, defense, automotive, electronic packaging and also in …
Published in Journal of Polymer & Composites · Vol. 13, Issue 1, 2025 · pp. 1040–1050 Read article
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Singularity Elimination in Current Distribution of a Dipole Antenna in Method of Moment (MOM)
Abstract: In this paper, the singularity subtraction technique for method of moments applying for a dipole antenna is explained. In the calculation of the current distribution waveform for the dipole antenna using method of moment from the Pocklingtons' Integral Equation has faced many logarithmic singularity terms. To avoid the singularities in this paper, we modify the Greens' function which is a major portion of the Pocklington's Integral Equation. The Pulse function …
Published in Journal of Microwave Engineering and Technologies · Vol. 2, Issue 3, 2015 · pp. 9–15 Read article
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Evaluation of T-stress using FEM in an Unsymmetrical Cracks Emanating from a Hole Placed Centrally in a Thin Plate
Abstract: Studying the impact of higher order terms of the William’s series expansion on fracture mechanics problems has received more attention in recent years. Research has demonstrated that the constant term T-stress has a significant impact on the stress and strain fields around the crack tip. In response to mixed mode (I/II) loading, a number of fracture criteria had been developed to characterize failure in linear elastic bodies. When evaluating the …
Published in Journal of Materials & Metallurgical Engineering · Vol. 14, Issue 2, 2024 · pp. 09–20 Read article
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The Frequency Characteristics of Transformer Windings Considering the Separation-Dependence of the Inter-Turn Mutual Parameters
Abstract: The paper presents a direct method for the determination of the frequency characteristics of transformer windings. The dependence of both the inter-turn mutual inductances and capacitances on the separation between these winding turns is taken into consideration. From measured data available in the literature, a formula for this dependence is derived. The voltage and current distributions along the winding will be governed by two integro-differential equations in terms of the …
Published in Journal of Power Electronics and Power Systems · Vol. 6, Issue 3, 2016 · pp. 72–81 Read article
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Circuit Breakers’ Recovery Voltage Transients: Impact of Composite Loads and Power Network’s Configuration
Abstract: The paper addresses the identification of the circuit breaker transient recovery voltage and its dependence on the loading conditions and the data of the power network, such as its rated power frequency and short-circuit level. A Laplace-domain approach is adopted and a closed-form expression for the recovery voltage is derived. A numerical inversion technique using Mathematica is implemented in order to get its time waveform. The proposed technique is applied …
Published in Journal of Power Electronics and Power Systems · Vol. 11, Issue 2, 2021 · pp. 18–26 Read article
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Carotid Blowout Syndrome after Neck Dissection: How Far We Know?
Abstract: Carotid blowout syndrome (CBS) is one of the most dreaded complications of neck dissection. CBS was once shown to have a high morbidity and mortality rates in all of its three types; however, with recent advancement in the medical field these rates decreased considerably. Surgeons and medical practitioners must have a thorough knowledge about this serious condition and the different ways of managing it. This paper is an overview of …
Published in Research and Reviews : Journal of Surgery · Vol. 8, Issue 3, 2019 · pp. 14–22 Read article
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Interference Effect Analysis of Pilot Contaminated Massive MIMO Downlink with Different Pre-coders and Channel Estimation
Abstract: A new idea in cellular MU-MIMO is the use of large numbers of BS antennas to serve several single-antenna terminals simultaneously. In multi-cell environments, adjacent cells using the same spectrum cause a pilot contamination problem and degrade signal quality. This pilot overhead can be reduced by reusing pilot sequences in nearby cells; however, this potentially introduces interference in the channel estimation phase, the so-called "pilot contamination" effect. The achievable rate …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 4, Issue 2, 2017 · pp. 1–9 Read article
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Analysis of Nonlinear Dynamic Model of Ball Bearing with Effect of Internal Radial Clearance
Abstract: It is a critical process to determine the response of rolling element bearing vibration using dynamic behavior analysis. Rolling element bearing works on the principal of transmission of load from moving race to stationary race. Generally outer race is fixed and load transmission takes place from inner race to outer race. In rolling bearing analytical formulation, the contact between rolling element and raceways is considered as nonlinear springs and their …
Published in Trends in Mechanical Engineering & Technology · Vol. 3, Issue 1, 2013 · pp. 1–8 Read article
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A Comprehensive Review Summarizing the Effect of Electrospinning Parameters and Potential Applications of Nanofibers
Abstract: Electrospinning is a valuable and effective system to create ultrafine nanofibers. Due to its flexibility, cost efficiency, in addition, the potential to be used in a broad range of uses, it has been a method of excellent science and industrial concern, bringing about a notable potential for nanotechnology. Since it is considered to be the most encouraging way of producing coherent nanofibers on a big scale, there is an enormous …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 9, Issue 3, 2019 · pp. 1–6 Read article
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Performance Optimization of Thin Film Cu(In,Ga)Se2 Solar Cell using BSF Layer
Abstract: This research work offers numerical analysis of CIGS solar cell designing an ultrathin absorber layer. The CIGS structure is outperformed from the theoretical and experimental evaluation considering the physical properties, dimensions and thickness of various layers of solar cell. Concentration of gallium within CIGS (Cu (In, Gа) Sе2) has major influence on the efficiency attributed to CIGS based solar cell and maximum power conversion efficiency of 27.26% is attained by …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 11, Issue 2, 2021 · pp. 19–26 Read article
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An Overview on Powder X-Ray Diffraction and Its Current Applications
Abstract: AbstractIndustries and research centres are continuously developing novel materials with light weight, higher strength and which can retain their properties at environmental temperatures. The cited properties mainly depend upon micro-structure and chemical composition of materials. Many research works focused to characterize the materials by different experiment techniques. Among them powder x-ray diffraction (XRD) is a most prominent, non-destructive technique used for investigation, characterization, and quality control of crystalline materials. Numerous …
Published in Research & Reviews : Journal of Physics · Vol. 4, Issue 3, 2015 · pp. 6–10 Read article
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Cloud Storage Deduplication Based on Cryptography Techniques
Abstract: In the present circumstances, numerous approaches are utilized for the removal of duplicating a copy for repeating data. One among the beneficial data compression approach is data de-duplication. It could minimize the significant amount ofspace for storageand also save the band widthwhen making use of cloud storage space. The security can be provided by confidentiality of the raw data files, although facilitating de-duplicated data files are encrypted by the proposed …
Published in Journal of Advanced Database Management & Systems · Vol. 3, Issue 2, 2016 · pp. 1–8 Read article