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190 articles for “Three-dimensional”
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FEA Analysis for the Optimization of an Extrusion Die
Abstract: Normal 0 false false false MicrosoftInternetExplorer4 The process of extrusion plays a vital role in the production process of different parts in various environments. Even though there is lot of variations in the production of parts during extrusion with conventional processes to the latest automation in the manufacturing. There is a need to develop different die designs by varying input processes variables for the extrusion process in an optimum manner. …
Published in Trends in Mechanical Engineering & Technology · Vol. 4, Issue 1, 2014 · pp. 10–21 Read article
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Bending Stress Analysis of Involute Helical Gear and Wildhaber-Novikov Gear
Abstract: This paper presents a bending stress analysis for Wildhaber-Novikov circular-arc gear (W-N gear) and involute helical gear. Bending stress analyses performed are under continuous load transmission during rotation using finite element method. Using CATIA V5 R19, three dimensional W-N gear and involute helical gear are modeled by considering same number of teeth, module, helix angle, pressure angle and face width. Then nonlinear contact analysis was conducted on involute helical gear …
Published in Trends in Mechanical Engineering & Technology · Vol. 4, Issue 2, 2014 · pp. 17–21 Read article
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Evaluation of J-Integral and Fatigue Crack Growth Rate of Semi-elliptical Crack in Compressor Blade
Abstract: Gas turbine compressor blades are subjected to centrifugal, gas bending and vibratory loads. This repeated loading and unloading can reduce the life of compressor blades. This research aims at the estimation of fatigue crack growth rate of various three-dimensional cracks in a compressor blade considering the J-integral calculations for a semi-elliptical crack, subjected to centrifugal loading. Static stress analysis was carried out to ascertain the critical region or crack zone …
Published in Trends in Mechanical Engineering & Technology · Vol. 4, Issue 2, 2014 · pp. 39–46 Read article
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On Triply-Diffusive Convection in Completely Confined Fluids
Abstract: The present paper derives some energy relationships and limitations for the growth rate of a disturbance in the problems of triply-diffusive convection of Veronis type configurations for fluids completely confined in an arbitrary region in the three dimensional Euclidean space 3 R .Keywords: Triply-diffusive convection, Rayleigh numbers, Prandtl numbers, Lewis numbers
Published in Journal of Experimental & Applied Mechanics · Vol. 5, Issue 3, 2014 · pp. 1–7 Read article
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GPS based Receiver Autonomous Integrity Monitoring (RAIM) for Onboard Aircrafts over the Indian Subcontinent
Abstract: Normal 0 false false false EN-US X-NONE X-NONE The introduction of Global Positioning System (GPS) has revolutionized the field of navigation particularly in the field of navigation. The GPS is a reliable, all weather satellite based radio navigation system that provides accurate three dimensional (3D) positions, velocity and timing information up to 10-6 seconds accuracy anywhere on or above the earth’s surface.However, a navigation system is required to deliver alarm …
Published in Journal of Aerospace Engineering & Technology · Vol. 1, Issue 2, 2011 · pp. 28–39 Read article
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Numerical Simulation of Flow Field, Fountain Flow and Associated Noise in Supersonic Impinging Twin Jet using Large Eddy Simulation
Abstract: A three-dimensional flow field is produced by a supersonic twin-jet impingement. It is studied using the turbulence model Large Eddy Simulation (LES). The numerical model consists of two parallel jets of diameter 3D apart, which are issued from a plane which is at a distance H = 2D, 3D, 4D above the ground. The Nozzle Pressure Ratio (NPR) is kept at 3.7 for all the flow conditions. The study is …
Published in Journal of Aerospace Engineering & Technology · Vol. 4, Issue 3, 2014 · pp. 1–8 Read article
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Numerical Investigation of Drag and Lift Forces on Turbulent Flow on an Airfoil Shaped Body at Different Angles of Attack
Abstract: Numerical analysis of drag and lift force on an airfoil shaped body at different angles is presented. Fundamentals of aircraft design are provided with detailed estimation of the aerodynamic drag and lift of airfoil is presented. This work presents the configuration optimization of an aerofoil body in air using SST computational fluid dynamics (CFD) modeling and compared with the experimental result. The governing equations are solved with a finite-volume-based numerical …
Published in Journal of Aerospace Engineering & Technology · Vol. 4, Issue 3, 2014 · pp. 9–15 Read article
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CFD Analysis of NACA 2412 and NACA 2412 with Passage for Lift Augmentation
Abstract: Computational Fluid Dynamics (CFD) analysis of a three dimensional (3-D) National Advisory Committee for Aeronautics (NACA) 2412 airfoil was compared with same dimensional 3-D NACA 2412 with internal passage. The computational domain was composed of 2109509 elements for NACA 2412 and 2258962 elements for NACA 2412 with internal passage. Calculations were done for various Mach numbers by varying the angle of attack constant for above mentioned turbulence model. The flow …
Published in Journal of Aerospace Engineering & Technology · Vol. 5, Issue 2, 2015 · pp. 1–7 Read article
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Design and Numerical Analysis of Solar Powered Unmanned Aerial Vehicle Using Helium Gas
Abstract: The fundamental of unmanned aerial vehicle has been designed and runs for quite a while. This paper mainly focuses on the reduction of payload and power consumption resulting in increase of efficiency further by the use of helium gas in a solar powered unmanned aerial vehicle. In addition to these, another aim of the aircraft is its use in surveying purpose. A highly powerful live steaming camera is attached to …
Published in Journal of Aerospace Engineering & Technology · Vol. 5, Issue 2, 2015 · pp. 22–26 Read article
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Structural Analyses of SoxY and SoxZ Proteins from Epsilonproteobacterium Sulfurimonas denitrificans: A Structural Bioinformatics Approach
Abstract: Abstract:Molecular level participation of epsilonproteobacteria for the global sulfur oxidation phenomena is an essential zone to be indulged with. Epsilonproteobacteria aids in the microbial sulfur metabolism both at and beneath the seafloor. For the recycling of the inorganic sulfur compounds, microbial redox reactions are one of the responsible and most important reactions to maintain the environmental sulfur balance. These reactions are carried out by phylogenetically diverse sets of microorganisms. The …
Published in Research and Reviews : A Journal of Biotechnology · Vol. 5, Issue 1, 2015 · pp. 35–44 Read article
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Finite Element Analysis of Double Fillet Weld
Abstract: Finite element analysis of the double fillet weld joint has been conducted in the present paper. Analysis of stress generated at the weld toes and weld root has been conducted and shown. Fine meshing near the weld toes and root has been adopted for accurate results. Fillet weld considered in the present study have two vertical plates, which are attached to a horizontal plate by welding. Study reveals that weld …
Published in Journal of Instrumentation Technology & Innovations · Vol. 6, Issue 2, 2016 · pp. 28–33 Read article
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Design Boiling Water Reactor Core Model Using MCNPX for Studying the Burnable Poisons and the Axial Enrichment Fuel Effect on the Neutronic Characteristics
Abstract: The incorporation of gadolinium directly into nuclear fuel is important for improving the reactor behavior and satisfying the safety criteria during the core lifetime. MCNPX (Monte Carlo N–Particle code extended) has been used for designing Advanced Boiling Water Reactor model. MCNPX code based on Monte Carlo method, is used to design a three-dimensional model for a BWR fuel assembly in a typical operating temperature and pressure conditions. This model has …
Published in Journal of Nuclear Engineering & Technology · Vol. 3, Issue 1, 2013 · pp. 21–35 Read article
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Heat Transfer Augmentation in Twisted Rectangular Channel
Abstract: The best way to profoundly and scientifically concentrate the heat exchange upgrade of nanofluids under turbulent course through Twisted Rectangular channels under consistent heat flux conditions on every one of the walls is to look at the marvel numerically. The nanofluids are fundamentally the strong nanoparticle of CuO suspended in water arranged chemically. CFD investigation is led utilizing FLUENT programming by the limited volume technique. The limit conditions connected are …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 10, Issue 2, 2020 · pp. 8–17 Read article
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To Analyze the Impact of Aerodynamic Devices on Vehicle Speed and its Stability
Abstract: Automotive aerodynamics is the study of the aerodynamics of road vehicles. Its main goals are reducing drag and wind noise, minimizing noise emission, and preventing undesired lift forces and other causes of aerodynamic instability at high speeds. Air is also considered a fluid in this case. For some classes of racing vehicles, it may also be important to produce down force to improve traction and thus cornering abilities. With an …
Published in Journal of Aerospace Engineering & Technology · Vol. 12, Issue 1, 2022 · pp. 13–17 Read article
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Electrical Performance of the Silicon Nanowire Double Gate FET
Abstract: Silicon nanowire (SiNW) metal-oxide-semiconductor field-effect transistor (MOSFET) is a promising candidate of future CMOS device for further scaling. As the cross-sectional dimensions of SiNW channel is very small, cross-sectional shapes should affect electrical characteristics of SiNW FETs. In this work, effects of cross-sectional shapes of gate stack formation on (i) properties of double gate of SiNW FET; (ii) carrier transport properties including on-current, effective carrier mobility and inversion charge density; …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 22, Issue 3, 2020 · pp. 5–11 Read article
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A Review on Protein Structure Prediction
Abstract: Protein structure prediction is the inference of the three-dimensional structure of a protein from its amino acid sequence. The prediction of folding and secondary and tertiary structure from its primary structure. Structure prediction is fundamentally different from the inverse problem of protein design. Protein structure prediction is one of the most important goals pursued by bioinformatics and theoretical chemistry. It is highly important in medicine and biotechnology. Every two years, …
Published in Research & Reviews: A Journal of Bioinformatics · Vol. 3, Issue 2, 2016 · pp. 1–7 Read article
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Ground Improvement Technique Using Recycled Geo-Cell
Abstract: Geo-Cells are three dimensional Structures Orthogonally Designed. These are made using Polymers, we have Experimented and Designed Geo-Cells using Recycled High Density Polypropylene (HDPE), to get a Cost Effective Result. These Geo-Cells are then installed under Weak and Soft Soil to create a Low Density Unpaved Road. These Roads help us continue the work of shifting the Blocks from the Manufacturing Site to the Storage Place with Minimum Losses. This …
Published in Journal of Remote Sensing & GIS · Vol. 13, Issue 1, 2022 · pp. 31–40 Read article
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Impact of Fertigation on Soil Nutrient Dynamics in Dalbergia sissoo tree plantations
Abstract: Fertigation allows the controlled placement of nutrients reducing fertilizer losses through leaching and minimize groundwater pollution. In fertigation Nutrient Use Efficiency (NUE) could be as high as 90% compared to 40-60% in conventional method of fertilizer application. Standardizing nutrient management with micro-irrigation system would require consideration to be contributed to soil nutrient dynamics. A field trial was conducted in Forest College and Research Institute, Tamil Nadu Agricultural University, Mettupalayam, Tamil …
Published in Research & Reviews : Journal of Agricultural Science and Technology · Vol. 8, Issue 2, 2019 · pp. 8–12 Read article
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Electrospun Structures for Dairy and Food Packaging Applications
Abstract: Electrospinning is an electrostatic fiber fabrication technique, in which a nonwoven mat of long fibers can be assembled into a three-dimensional structure due to bending instability of the spinning jet. Owing to its versatile nature and potential for applications in diverse fields including food packaging has been gaining more interest. It is a flexible and easy tool for producing ultrathin sized by applying electrical force. In this process, altering the …
Published in Research and Reviews : Journal of Dairy Science and Technology · Vol. 6, Issue 1, 2017 · pp. 17–23 Read article
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3D-QSAR Studies on Protein Phosphatase 2A Inhibitors as Anti-cancer Agents
Abstract: The tremendous efforts by researcher indicates that cantharidin, nor cantharidin and their analogues shows anti-cancer activity due to their inhibition of cancer cell lines such as HT29, SW480, MCF-7, A2780, H460, A431, DU145 and L1210. The anti-cancer activities of cantharidin, nor cantharidin and their analogues involve the inhibition of serine/threonine protein phosphatises (PPs) activity. In this study, three-dimensional quantitative structure activity relationship (3D-QSAR) like comparative molecular field analysis (CoMFA), and …
Published in Research & Reviews: A Journal of Drug Design & Discovery · Vol. 5, Issue 3, 2018 · pp. 1–19 Read article