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246 articles for “rotation”
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Management of Rotator Cuff Injury with Physiotherapy in Pre- and Post-surgery: An Overview
Abstract: The likelihood of rotator cuff tears increases with age, with total width tears occurring in roughly 25% of people in their 60s and an extra 50% of people in their 80s. Despite the fact that surgery is considered an active therapy, repeated rips at the inset place are common, particularly during progressive tears, which are common in the elderly population. Physical therapy and exercise therapy are currently receiving more attention …
Published in International Journal of Orthopedic Nursing and Practices · Vol. 1, Issue 1, 2023 · pp. 6–12 Read article
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Rotational Speed Influence on Weld Temperature in Friction Stir Lap Joint of Aluminium Alloy 6061 Using Numerical Simulation
Abstract: The weld quality assessment in friction stir welding depends on the choice of suitable weld parameters. Rotational speed is one such parameter. The study utilizes a computational fluid dynamics model to examine the influence of various rotational on the workpiece and weld interface temperature. The workpiece selected for this study is an Aluminium Alloy 6061, while the tool employed is a truncated conical pin tool featuring a conical shoulder in …
Published in Journal of Polymer & Composites · Vol. 12, Issue 2, 2024 · pp. 235–245 Read article
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Experimental Study of Solar Still with Rotating Wick to Increase Productivity
Abstract: In the present work, an attempt is made to enhance the productivity of the conventional basin type single slope solar still using a vertical rotating wick. A rotating wick (Jute cloth) belt is integrated against the still back wall to act as an additional evaporation area. A set of experimental tests are carried out by applying constant heat flux using halogen bulbs and by varying the brackish water height in …
Published in Journal of Thermal Engineering and Applications · Vol. 8, Issue 1, 2021 · pp. 54–61 Read article
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Stress Analysis of Two-Dimensional Functionally Graded Thick Rotating Disks by Element Based Material Grading
Abstract: The present study reports the stress and deformation analysis of thick rotating disks made of two-dimensional functionally graded materials (FGMs). The analysis is carried out using element based gradation of material properties in radial and axial direction over the discretized domain. Material properties are distributed according to power law distribution and the governing equations are derived using principle of stationary total potential (PSTP). The resulting deformation and stresses are evaluated …
Published in Journal of Experimental & Applied Mechanics · Vol. 8, Issue 1, 2017 · pp. 28–36 Read article
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Electro-viscous effect on rotating disk flow with variable physical properties
Abstract: In this study, investigate are made for an unsteady flow across a rotating disk with various physical parameters. Consider the movement of a viscous fluid across a three-dimensional disk. The major goal of the current mathematical form is to look at the behavior of an ionic convey electrically viscous flow of boundary layer on a spinning disk with different physical characteristics. To mimic ionic species conservation, the Poisson equation and …
Published in Recent Trends in Fluid Mechanics · Vol. 9, Issue 3, 2022 · pp. 1–11 Read article
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Modification In Technology of Solar Water Distillation for Improving Performance Through Design of Rotating Cylinder
Abstract: A solar still uses sunlight to turn salty or dirty water into clean drinking water by evaporation and condensation. It is one of the best solutions for drinking water shortages and environmental issues, as well as being affordable and friendly to the ecosystem. The primary issue with using traditional solar power is still how inefficient it is. Prominent goal of experiment is to do alteration in existing solar still. A …
Published in Journal of Polymer & Composites · Vol. 13, Issue 3, 2025 · pp. 398–404 Read article
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Stress and Deformation Analysis of Rotating Cylindrical Pressure Vessel of Functionally Graded Material Modeled by Mori-Tanaka Scheme
Abstract: The present study deals with the linear elastic analysis of rotating cylindrical pressure vessels. The vessels are made up of one directional functionally graded material (FGM), in which mechanical and physical properties are varying along the radial direction. The analysis is carried out using finite element method which is based on the principle of stationary total potential (PSTP). Material properties are graded according to the Mori-Tanaka distribution law and ceramic-metal …
Published in Journal of Experimental & Applied Mechanics · Vol. 8, Issue 3, 2017 · pp. 1–7 Read article
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Failure Analysis of Rotating Machine
Abstract: Most failures surveyed for electric motors are influenced by the particular industry, the geographic location and combination of applications in use. Rotating machine plays a vital role in industrial applications. Due to its variety of applications, it is difficult to diagnose the very cause of failure. Heavy duty rotating equipment are more prone to have failure with catastrophic consequences, if not rectified.Most failures surveyed for electric motors are influenced by …
Published in Journal of Power Electronics and Power Systems · Vol. 11, Issue 1, 2021 · pp. 1–5 Read article
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Impact of Tool rotating speeds on the Mechanical characteristics of dissimilar friction stir-welded AZ80A-Mg – AA6061-Al joints
Abstract: In this investigation, separate AA6061-Al and AZ80A-Mg alloy plates were effectively joined through stir welding with friction. We looked closely at the weld joints' characteristics, especially their mechanical aspects. In the experiment, here were multiple tool rotating rates (rpm) of 800, 1000, 1200, 1400, and 1600 used. A cylindrical pin-equipped tool featuring a tapered profile was utilized, inserted into the AA6061 alloy plate is offset by 0.5 mm, while maintaining …
Published in Journal of Polymer & Composites · Vol. 12, Issue 1, 2024 · pp. 161–168 Read article
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Effect of tool Rotation Speed on Aluminium alloy (2024) to Copper Welded Joint Produced by Friction Stir Welding
Abstract: AbstractFriction stir welding has a very high importance in the field of thermomechanical processing. One of the main reasons of this vast application of friction stir welding is that the weld obtained by this process is light in weight. The materials which are used to weld by this process are mainly aluminium alloys which are easily available in the market. Since copper has been the material used for decades in …
Published in Journal of Thermal Engineering and Applications · Vol. 5, Issue 3, 2018 · pp. 18–23 Read article
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An Investigation of Stress and Deformation States of Rotating Functionally Graded Spherical Pressure Vessels
Abstract: The present study deals with the analysis of rotating spherical pressure vessels made of functionally graded materials (FGMs). Material properties are graded along the radial direction, which is achieved by varying volume fractions of the constituting materials according to Mori-Tanaka scheme. Shells are subjected to hydrostatic internal pressure and have free boundary condition at the outer surface. Governing equations are derived using principle of stationary total potential. The effects of …
Published in Journal of Experimental & Applied Mechanics · Vol. 8, Issue 3, 2017 · pp. 19–27 Read article
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Numerical Investigation of Influence of Rate of Rotation on Formation of Vapor Around Two Heated Circular Cylinders Immersed in Water Inside a Channel
Abstract: AbstractThe complexity problem of fluid flow and heat transfer over an array of circular cylinders are common in industrial applications of the fluid dynamics. The complex nature of the problem encountered in industry, gives rise to certain significant dimensions in the fluid dynamics theory. Some of them are the fluid flow interaction, interferences in flow and vortex dynamics which are typically found in compact heat exchangers, cooling of electronic equipment, …
Published in Recent Trends in Fluid Mechanics · Vol. 4, Issue 3, 2017 · pp. 14–25 Read article
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Defect Diagnosis and Modelling for A Rotating Machine Running at A Steady Pace
Abstract: Rotary equipment, such as gears, shafts, pumps, and bearings, are widely used across various rotary machine in industries, often operating under different loading conditions. The fluctuations in loading can lead to fatigue failures in rotating components, significantly affecting machinery performance. To investigate the behavior of such rotating equipment under diverse operational scenarios, a numerical model has been created. This approach can replace costly and often challenging experimental methods. However, it …
Published in Journal of Polymer & Composites · Vol. 13, Issue 5, 2025 · pp. 154–164 Read article
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Total-internal-reflection-based optical rotation quasi-phase-matching for efficient second-harmonic generation in Cadmium Germanium Arsenide crystal
Abstract: This study investigates a total-internal-reflection (TIR)-based optical rotation quasi-phase-matching (ORQPM) approach for second harmonic generation within a cadmium germanium arsenide crystal slab. The crystal is coated with a thin film of yttrium oxide to facilitate precise control over phase shifts between p- and s-polarized light upon reflection at the slab-film interface. By leveraging the interplay between TIR- induced optical rotation and fractional QPM effects at designated bounce points, the configuration …
Published in International Journal of Crystalline Materials · Vol. 3, Issue 1, 2026 Read article
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Effect MFD Viscosity on Bénard–Marangoni Ferroconvection in a Rotating Ferrofluid Layer with Convective Surface Boundary Condition
Abstract: AbstractThe combined effect of Coriolis force due to rotation and magnetic field dependent (MFD) viscosity on the onset of Bénard–Marangoni convection in a horizontal layer of ferrofluid is investigated theoretically. The lower boundary is taken to be rigid–isothermal, while the upper free boundary open to the atmosphere is flat and subject to a convective surface boundary condition. The Galerkin technique is employed to extract the critical stability parameters numerically. It …
Published in Recent Trends in Fluid Mechanics · Vol. 7, Issue 2, 2020 · pp. 12–32 Read article
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A Model of Bidding in Rotating Saving Credit Associations
Abstract: The paper analyzes bidding behavior in discount bidding Roscas under the assumption of risk neutrality. Roscas are group based revolving financial schemes. In discount bidding Roscas, individuals bid for a lumpsum. We find that bids submitted by members in equilibrium are increasing in the returns or opportunities for investment. Further, members submit lower bids when credit is available outside Rosca at expensive rates. A bidding Rosca is efficient as an …
Published in Journal of Production Research & Management · Vol. 7, Issue 1, 2017 · pp. 11–15 Read article
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IoT Based Rotating Firefighting Semi-Autonomous Robot
Abstract: The employment of technology to prevent fires is essential because they are a serious threat. One example of how technology can be used to put out fires while reducing the risk to human life is a fire-fighting robot. In this project, a fire-fighting robot was created to locate and put out fires. The robot's ability to detect flames in all four directions is provided by a combination of flame sensors, …
Published in Journal of Semiconductor Devices and Circuits · Vol. 10, Issue 1, 2024 · pp. 37–43 Read article
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Rotation Invariant Copy-Move Image Forgery Detection Using a Method Based on Fuzzy-Zernike Moments
Abstract: AbstractWithout leaving any visual clue, digital images are easy to manipulate due to the availability of countless editing software packages. Any image manipulation can become a forgery. Copymove forgery is a very common method of creating forge images by copying some part of the image and pastes it on the same image. In this paper, we propose a copy-move digital image forgery detection method using Fuzzy-Zernike Moments. The proposed method …
Published in Journal of Computer Technology & Applications · Vol. 7, Issue 2, 2016 · pp. 58–68 Read article
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CFD Analysis of Double Diffusion Rotating Flow in a Cylindrical Annular MHD Braking System with Joules Heating and Dufour Effects
Abstract: The present study has investigated Joules parameter significance on an axisymmetric whirling flow within a cylindrical annulus, specifically focusing on an MHD braking system. The cylindrical annulus braking system is packed lithium lid liquid (Pr = 0.015), aspect ratio = 2, and imposed to an axial heat and magnetic field. In this study, the modified MAC pressure correction method has been used to solve the mixed convection flow with double …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 1448–1462 Read article
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Lambda Doubling Calculation of Carbon Monoxide C12O16 Molecule
Abstract: The theoretical emission spectrum of C12O16 molecule, calculation of lambda doubling, the relation between wavenumbers R(J), Q(J), P(J) and rotational state energies F(J), F(J + 1) with rotational quantum number J respectively have been investigated for A1
Published in Emerging Trends in Chemical Engineering · Vol. 2, Issue 2, 2015 · pp. 25–31 Read article