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Journal articles on the topic 'Electric cylinders'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Muhammad, Ibrahim, and Hao Bai. "Circumferential and Spiral Waves in Piezoelectric Cylinders." Advanced Materials Research 622-623 (December 2012): 142–46. http://dx.doi.org/10.4028/www.scientific.net/amr.622-623.142.

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Study of the guided waves in piezoelectric cylinders based on a semi-analytical finite element method is presented. In the study, the dispersion equation was formulated as a generalized eigenvalue problem by treating mechanical displacements and electric potential with one dimensional quadratic finite element model through the thickness of the cylinder. Here the general eigenvalue problem is depended on three parameters, namely, the frequency, the axial wave number and the circumferential wave. A non-integer circumferential wave is introduced here for studying the guided spiral wave. A wave sp

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2

Allam, M. N. M., A. M. Zenkour, and R. Tantawy. "Analysis of Functionally Graded Piezoelectric Cylinders in a Hygrothermal Environment." Advances in Applied Mathematics and Mechanics 6, no. 2 (2014): 233–46. http://dx.doi.org/10.4208/aamm.12-m1277.

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AbstractThis paper presents an analytical solution for the interaction of electric potentials, electric displacement, elastic deformations, and describes hygrothermal effect responses in hollow and solid cylinders, subjected to mechanical load and electric potential. Exact solutions for displacement, stresses and electric potentials in functionally graded piezoelectric material are determined using the infinitesimal theory. The material properties coefficients of the present cylinder are assumed to be graded in the radial direction by a power law distribution. Numerical examples display the si

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Oei, Costantinus, Maran Gultom, and Obet Takke Ranteallo. "ANALISA PENGARUH DERAJAT KEMIRINGAN TERHADAP KINERJA ELECTRIC TROLLEY TABUNG GAS OKSIGEN DI RSUD ABEPURA." JURNAL SIMETRIK 13, no. 1 (2023): 697–703. http://dx.doi.org/10.31959/js.v13i1.1639.

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The demand for quick and easy distribution of oxygen cylinders at Abepura Regional General Hospital (RSUD Abepura) is increasing. Every operator, nurse, and patient desires quality in the hospital service process. This research explains how to build an automated and time-saving transportation system for oxygen cylinders to facilitate medical services efficiently, environmentally friendly, and safely. This is crucial due to the road conditions at RSUD Abepura, which have particular inclinations that hinder the distribution of 72 kg gas cylinders. The gas cylinder trolleys at RSUD Abepura are st

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Sukhichev, M., and E. Skochko. "Influence degree of skin-effect for overhead line conductors." Journal of Physics: Conference Series 2339, no. 1 (2022): 012030. http://dx.doi.org/10.1088/1742-6596/2339/1/012030.

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Abstract This paper analyzes the skin-effect influence on ACSR conductors for overhead lines. The analysis is based on numerical models: one cylinder, and two coaxial cylinders, and cylinders layers. The authors compare all models with each other, as well as with the well-known analytical solution, and direct current mode. All numerical models were verified by comparison with the analytical solution. The results show the one cylinder model get incorrect results for ACSR conductors. Moreover, the maximum error about 40% is given by conductors with a medium cross-sectional area, such as the ”AC

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Chen, Wei L., and Huan J. Keh. "Electroosmosis and Electric Conduction of Electrolyte Solutions in Charge-Regulating Fibrous Media." Colloids and Interfaces 5, no. 1 (2021): 19. http://dx.doi.org/10.3390/colloids5010019.

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An analytical study of the electroosmosis and electric conduction of electrolyte solutions in a fibrous medium composed of parallel charge-regulating cylinders with arbitrary electric double layer thickness is presented. A linearized charge regulation model was adopted for the association and dissociation reactions occurring at the amphoteric functional groups over the surfaces of the cylinders, and a unit cell model was employed to accommodate interactions among the cylinders. The electrokinetic equations governing the ionic concentration, electric potential, and liquid flow fields were solve

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6

Canpolat, Cetin. "Induced-charge electro-osmotic flow around cylinders with various orientations." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 231, no. 21 (2016): 4057–66. http://dx.doi.org/10.1177/0954406216656886.

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Induced-charge electro-osmosis around multiple gold-coated stainless steel rods under various AC electric fields is investigated using the techniques of microparticle image velocimetry and numerical simulation. In this study, the results of interactions between induced electric double layers of two identical conductive cylinders on surrounding fluid are presented. The induced-charge electro-osmosis flow around multiple rods in touch and with one cylinder diameter gap reveals quadrupolar flow structures with four vortices. The induced-charge electro-osmotic flow structure and velocity magnitude

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Popescu, Teodor Costinel, Alexandru-Polifron Chiriţă, Ana-Maria Carla Popescu, Andrei Vlad, Gheorghe Alexandru Trăneci, and Alina Iolanda Popescu. "Optimization of Manufacturing Processes by Reducing the Costs of Tools and Equipment on Hydraulically Operated High-Pressure Technological Lines." MATEC Web of Conferences 368 (2022): 01008. http://dx.doi.org/10.1051/matecconf/202236801008.

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Most technological manufacturing lines include hydraulically operated stationary tools, devices and equipment. During a manufacturing cycle, there are phases, usually short, in which part of the hydraulic cylinders of the drive systems concerned, with small gauges and displacement speeds, have to generate / maintain high clamping or pressing forces, which implies functioning at high working pressures. The solution for such cylinders is to use modular hydraulic pumping units comprising: oil tank; low-pressure electric pump; hydraulic directional valve for starting, stopping and changing the dir

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Gasparjans, Aleksandrs, Aleksandrs Terebkovs, and Anastasia Zhiravetska. "Voltage Spectral Structure as a Parameter of System Technical Diagnostics of Ship Diesel Engine-Synchronous Generators." Electrical, Control and Communication Engineering 8, no. 1 (2015): 37–42. http://dx.doi.org/10.1515/ecce-2015-0005.

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Abstract A method of technical diagnostics of ship diesel engine – generator installation – is proposed. Spectral-power diagnostic parameters of the synchronous generator voltage and currents are used. The electric machine in this case is the multipurpose sensor of diagnostic parameters. A judgment on the quality of the operational processes in diesel engine cylinders and its technical condition is possible on the basis of these parameters. This method is applicable to piston compressor installations with electric drive. On the basis of such parameters as rotating torque, angular speed and ang

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SUGIHARA-SEKI, MASAKO, TAKESHI AKINAGA, and TOMOAKI ITANO. "Effects of electric charge on osmotic flow across periodically arranged circular cylinders." Journal of Fluid Mechanics 664 (September 27, 2010): 174–92. http://dx.doi.org/10.1017/s0022112010003708.

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An electrostatic model is developed for osmotic flow across a layer consisting of identical circular cylinders with a fixed surface charge, aligned parallel to each other so as to form an ordered hexagonal arrangement. The expression of the osmotic reflection coefficient is derived for spherical solutes with a fixed surface charge suspended in an electrolyte, based on low-Reynolds-number hydrodynamics and a continuum, point-charge description of the electric double layers. The repulsive electrostatic interaction between the surface charges with the same sign on the solute and the cylinders is

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Alic, Fikret. "Entransy Dissipation Analysis and New Irreversibility Dimension Ratio of Nanofluid Flow Through Adaptive Heating Elements." Energies 13, no. 1 (2019): 114. http://dx.doi.org/10.3390/en13010114.

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A hollow electric heating cylinder is inserted inside a thermo-insulating cylindrical body of larger diameter, together representing a single cylindrical heating element. Three cylindrical heating elements, with an independent electrical source, are arranged alternately one after the other to form a heating duct. The internal diameters of the hollow heating cylinders are different, and the cylinders are arranged from the largest to the smallest in the nanofluid’s flow direction. Through these hollow heating cylinders passes nanofluid, which is thereby heated. The material of the hollow heating

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11

Hayase, T., J. A. C. Humphrey, and R. Greif. "Numerical Calculation of Convective Heat Transfer Between Rotating Coaxial Cylinders With Periodically Embedded Cavities." Journal of Heat Transfer 114, no. 3 (1992): 589–97. http://dx.doi.org/10.1115/1.2911322.

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A numerical study has been performed for the flow and heat transfer in the space between a pair of coaxial cylinders with the outer one fixed and the inner one rotating. Of special interest is the case where either one of the cylinders has an axially grooved surface resulting in twelve circumferentially periodic cavities embedded in it. The ends of the cylinder are bounded by flat impermeable walls that are either fixed to the outer cylinder or rotate with the inner one. Such a geometry is common in electric motors where an improved understanding of thermophysical phenomena is essential for an

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12

Liu, J., G. Talmage, and J. S. Walker. "Stability of the Base Flow to Axisymmetric and Plane-Polar Disturbances in an Electrically Driven Flow Between Infinitely-Long, Concentric Cylinders." Journal of Fluids Engineering 123, no. 1 (2000): 31–42. http://dx.doi.org/10.1115/1.1335497.

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The method of normal modes is used to examine the stability of an azimuthal base flow to both axisymmetric and plane-polar disturbances for an electrically conducting fluid confined between stationary, concentric, infinitely-long cylinders. An electric potential difference exists between the two cylinder walls and drives a radial electric current. Without a magnetic field, this flow remains stationary. However, if an axial magnetic field is applied, then the interaction between the radial electric current and the magnetic field gives rise to an azimuthal electromagnetic body force which drives

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13

Wang, Yunqiu, Yu-Xi Song, Wen-Yi Tong, et al. "Electric field control of magnetism in nickel with coaxial cylinder structure at room temperature by electric double layer gating." J. Mater. Chem. C 5, no. 40 (2017): 10609–14. http://dx.doi.org/10.1039/c7tc03617e.

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14

Littlefield, D. L. "Magnetomechanical Instabilities in Elastic-Plastic Cylinders, Part II: Plastic Response." Journal of Applied Mechanics 63, no. 3 (1996): 742–49. http://dx.doi.org/10.1115/1.2823358.

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The analysis of elastic instabilities in metal cylinders when subjected to electromagnetic fields (Littlefield, 1996a) is extended in this work to include elastic-plastic flow. The cylinder is assumed to be infinitely long and perfectly conducting. The Prandtl-Reuss elastic-plastic material model is the assumed constitutive law, with the von Mises yield criterion employed to limit the effective stress. An axial electric current, assumed to be conducting along the surface of the cylinder, generates a confining pressure, causing plastic flow that is initially assumed to be uniform throughout the

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15

Karim, F., B. Farouk, and I. Namer. "Natural Convection Heat Transfer From a Horizontal Cylinder Between Vertical Confining Adiabatic Walls." Journal of Heat Transfer 108, no. 2 (1986): 291–98. http://dx.doi.org/10.1115/1.3246918.

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This paper reports an experimental study of natural convection heat transfer from a horizontal isothermal cylinder between vertical adiabatic walls. Some of the industrial applications of this problem are cooling and casing design of electronic equipment, nuclear reactor safety, and heat extraction from solar thermal storage devices. Heat transfer from 3.81 cm and 2.54 cm diameter cylinders was determined by measuring the electric power supplied to the heater, which was placed inside the cylinders, and correcting for radiation and end losses. Average Nusselt numbers were determined for a Rayle

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Qian, Pengfei, Chenwei Pu, Lei Liu, et al. "Development of a new high-precision friction test platform and experimental study of friction characteristics for pneumatic cylinders." Measurement Science and Technology 33, no. 6 (2022): 065001. http://dx.doi.org/10.1088/1361-6501/ac51a6.

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Abstract In order to achieve high-precision pneumatic cylinder friction test, this paper proposes a new direct measurement method based on electric cylinder in which the axially acting forces from the compressed air in the two facing pneumatic cylinders cancel each other out and the detected value of the force transducer is just friction. For the sake of the implementation of the method, a new low-cost test method for identifying deadband of proportional directional valve was proposed, and a set of fuzzy PI constant pressure control system was designed to cope with a certain degree of leakage

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17

Abdullah, Hassan K., and Haneen H. Rahman. "Improvement Of Free Convection From Three horizontal Finned Cylinders Fixed Between Two Walls." Wasit Journal of Engineering Sciences 6, no. 2 (2018): 98–114. http://dx.doi.org/10.31185/ejuow.vol6.iss2.97.

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Improvement of free convection heat transfer from three finned cylinders arranged at a triangle shape fixed between two walls has been investigated in this study. Three mild steel finned cylinders fixed between two walls from Pyrex glass have been used as a test rig. It has been changed the spacing between the cylinders (X/D=1,2,3 & S/D=2,4,6) and the head orientation of a triangle to the top under constant heat flux values (38, 254, 660, 1268) W/m2 and compare with case of three finned cylinders arranged in vertical array in line fixed between two wall. The experiments are carried for Ray

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18

Song, Hao, Xuelian Zhang, Jian Wang, Yanming Sun, and Guo Ping Wang. "Bound state in the continuum and polarization-insensitive electric mirror in a low-contrast metasurface." Optics Express 32, no. 15 (2024): 26867. http://dx.doi.org/10.1364/oe.528021.

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High-contrast refractive indices are pivotal in dielectric metasurfaces for inducing various exotic phenomena, such as the bound state in the continuum (BIC) and electric mirror (EM). However, the limitations of high-index materials are adverse to practical applications, thus, low-contrast metasurfaces offering comparable performance are highly desired. Here, we present a low-contrast dielectric metasurface composed of radial anisotropic cylinders, which are SiO2 cylinders doped with a small amount of WS2. The cylinder exhibits unidirectional forward superscattering resulting from the overlap

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19

Oei, Costantinus, Maran Gultom, Obet Takke Ranteallo, et al. "PERFORMANCE ANALYSIS OF THE ELECTRIC TROLLEY OF OXYGEN CYLINDERS BASED ON THE ROAD SLOPE." ROTOR 16, no. 1 (2023): 5. http://dx.doi.org/10.19184/rotor.v16i1.40522.

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The demand for efficient distribution of oxygen cylinders at Abepura Regional General Hospital (RSUD Abepura) has been steadily increasing due to the growing needs of staff members and patients who expect high-quality service within the hospital premises. In response to this demand, this study aims to propose a transportation system that is not only automated but also time-saving, with the ultimate goal of enhancing medical services in a more efficient, eco-friendly, and safe manner. One of the main challenges faced in the distribution process is the hilly terrain surrounding RSUD Abepura. The

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20

Mukhammadiev, D. M., F. Kh Ibragimov, and O. Kh Abzoirov. "Study of a linter machine with steel gaskets in production." Journal of Physics: Conference Series 2388, no. 1 (2022): 012082. http://dx.doi.org/10.1088/1742-6596/2388/1/012082.

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Abstract The article presents the results of the study of a linter machine with steel gaskets in an industrial environment. An analysis of the structures of aluminum saw gaskets was conducted, and their main shortcomings were established. To eliminate the shortcomings of aluminum gaskets, technical solutions were proposed. For this purpose, a new design of saw gaskets with steel pads for cotton gins was proposed. Steel gaskets for linter machines were made. The dimensions of the saw cylinder with steel gaskets after assembly are determined. The main energy indices of the saw cylinder electric

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21

Hamid, A. K., and F. Cooray. "Two-Dimensional Scattering by a Homogeneous Gyrotropic-Type Elliptic Cylinder." Advanced Electromagnetics 5, no. 3 (2016): 106. http://dx.doi.org/10.7716/aem.v5i3.401.

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The separation of variables procedure has been employed for solving the problem of scattering from an infinite homogeneous gyrotropic-type (G-type) elliptic cylinder, when a uniform plane electromagnetic wave perpendicular to its axis, illuminates it. The formulation of the problem involves expanding each electric and magnetic field using appropriate elliptic vector wave functions and expansion coefficients. Imposing suitable boundary conditions at the surface of the elliptic cylinder yields the unknown expansion coefficients related to the scattered and the transmitted fields. To demonstrate

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22

Littlefield, D. L. "Magnetomechanical Instabilities in Elastic-Plastic Cylinders, Part I: Elastic Response." Journal of Applied Mechanics 63, no. 3 (1996): 734–41. http://dx.doi.org/10.1115/1.2823357.

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The effects of electromagnetic fields on instabilities in metal cylinders are considered in this analysis. The cylinder is assumed to be infinitely long and perfectly conducting. An axial electric current is introduced in the cylinder, giving rise to an azimuthal magnetic field in the surrounding vacuum, causing mechanical distortion in the cylinder. The current is assumed to be small so that the deformation remains elastic; in an accompanying paper (Littlefield, 1996) larger currents are considered where plastic flow becomes important. After solutions to the idealized motion of the cylinder u

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CUPER-PRZYBYLSKA, Dominika. "Pressure measurement in the cylinder of four-stroke marine engine – simulation analysis." Combustion Engines 177, no. 2 (2019): 36–39. http://dx.doi.org/10.19206/ce-2019-206.

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The measurement of combustion pressure relies on connecting a pressure sensor to a four-stroke marine engine cylinder by a channel led out from the engine cylinder. The geometry of the channel distorts the results of combustion pressure measurements. The purpose of the work is to create a model of combustion processes in engine cylinders. The model uses a mathematical description of the indicator channel on one of the engine cylinders. The input data to the model and the data necessary for its verification came from the direct measurements on the research facility. The test object was a four-s

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Fang, Li Feng, An Xing Liu, Xiao Nan Zhang, and Xing Long Zhang. "Dynamic Analysis of a 1T3R Parallel Stable Platform." Advanced Materials Research 850-851 (December 2013): 616–19. http://dx.doi.org/10.4028/www.scientific.net/amr.850-851.616.

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Based on POC set theory and SOC unit, a 1T3R parallel stable platform is proposed. The Single cylinder force analysis is studied. Then uses Newton-Euler method, gives full consideration to these various factors: without neglecting the ball screw rotation, friction between the spherical joint, the mass and the moment of inertia of electric cylinders, based above the dynamic theoretical Analysis of the stable platform is researched. The paper makes the guide sense for the follow-up research and the application of the 1T3R mechanism.

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Emets, Yu P., and Yu P. Onofrichuk. "Interaction forces of dielectric cylinders in electric fields." IEEE Transactions on Dielectrics and Electrical Insulation 3, no. 1 (1996): 87–98. http://dx.doi.org/10.1109/94.485519.

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Maksimenko, N. M., and A. A. Laptev. "Design features of engines of generation of A-41SI family." Sel'skohozjajstvennaja tehnika: obsluzhivanie i remont (Agricultural Machinery: Service and Repair), no. 5 (May 1, 2020): 29–34. http://dx.doi.org/10.33920/sel-10-2005-05.

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Design documentation on diesel engines of the A-41SI model is analysed. By results of the analysis it is revealed that on diesels of this type individual heads of cylinders, an electric starter with a pro-rate for start of engines are introduced, assembly units and details are improved: cranked shaft, sets of radical and shatunny inserts, cylinder sleeve, the piston, set of piston rings, casing with disks of the coupling of coupling, etc. Introduction of new constructive changes on A-41SI diesels allowed to raise their rabotosposbnost and durability.

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Maksimenko, N. M., and A. A. Laptev. "Design features of the new generation engines of the A-41SI family." Sel'skohozjajstvennaja tehnika: obsluzhivanie i remont (Agricultural Machinery: Service and Repair), no. 2 (February 28, 2022): 55–61. http://dx.doi.org/10.33920/sel-10-2202-07.

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Design documentation on diesel engines of the A-41SI model is analysed. By results of the analysis it is revealed that on diesels of this type individual heads of cylinders, an electric starter with a pro-rate for start of engines are introduced, assembly units and details are improved: cranked shaft, sets of radical and shatunny inserts, cylinder sleeve, the piston, set of piston rings, casing with disks of the coupling of coupling, etc. Introduction of new constructive changes on A-41SI diesels allowed to raise their rabotosposbnost and durability.

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Hadjadj, Ahmed, and Seghir Maamir. "Laminar Mixed Convection in Two Concentric Vertical Cylinders." International Journal of Chemoinformatics and Chemical Engineering 5, no. 1 (2016): 24–43. http://dx.doi.org/10.4018/ijcce.2016010103.

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The flow patterns and heat transfer have been studied numerically for contained air in the space formed by two vertical concentric cylinders. The inner cylinder rotates about its vertical axis and the outer cylinder is kept stationary. This geometry simulates, for example, the gaps at the ends of the rotor of vertical electric motors. The results facilitate the thermal design of such devices. The governing equations for velocity and temperature are solved by finite volume techniques in which the SIMPLE algorithm is incorporated. Results are presented for a range of Reynolds numbers (Re) and fo

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Parhizkar Yaghoobi, Mohammad, and Mehdi Ghannad. "Electro-elastic analysis of functionally graded piezoelectric variable thickness cylindrical shells using a first-order electric potential theory and perturbation technique." Journal of Intelligent Material Systems and Structures 31, no. 17 (2020): 2044–68. http://dx.doi.org/10.1177/1045389x20935627.

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In this research, an analytical solution is presented for the functionally graded piezoelectric cylindrical variable wall thickness that is subjected to mechanical and electrical loading. The non-homogeneous distribution of materials is considered as a power function. The first-order electric potential theory, first-order shear deformation theory, and the energy method are used for extracting the system of governing equations. The solution is accomplished using the matched asymptotic expansion method of the perturbation technique. The effects of non-homogeneous properties on the electromechani

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Mestel, A. J., A. J. Mokady, K. H. Parker, and C. P. Winlove. "Effects of the glycocalyx on the electrophoretic mobility of red cells and on streaming potentials in blood vessels: predictions of a structurally‐based model." Biorheology: The Official Journal of the International Society of Biorheology 35, no. 6 (1998): 365–81. http://dx.doi.org/10.1177/0006355x1998035006005.

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The polyelectrolyte layer coating mammalian cells, known as the glycocalyx, may be important in communicating flow information to the cell. In this paper, the layer is modelled as a semi‐infinite, doubly periodic array of parallel charged cylinders. The electric potential and ion distributions surrounding such an array are found using the linearised Poisson–Boltzmann equation and an iterative domain decomposition technique. Similar methods are used to calculate Stokes flows, driven either by a shear at infinity or by an electric field, parallel or transverse to the cylinders. The resulting ele

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MOKADY, A. J., A. J. MESTEL, and C. P. WINLOVE. "Flow through a charged biopolymer layer." Journal of Fluid Mechanics 383 (March 25, 1999): 353–78. http://dx.doi.org/10.1017/s0022112098004030.

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The polyelectrolyte layer coating mammalian cells, known as the glycocalyx, is important in communicating flow information to the cell. In this paper, the layer is modelled as a semi-infinite, doubly periodic array of parallel charged cylinders. The electric potential and ion distributions surrounding such an array are found using the Poisson–Boltzmann equation and an iterative domain decomposition technique. Similar methods are used to calculate Stokes flows, driven either by a shear at infinity or by an electric field, parallel or transverse to the cylinders. The resulting electric streaming

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Sokovikov, V. K., and P. I. Strokov. "Research on displacement of electrohydrodynamic high-pressure pump of diesel engine fuel system." Izvestiya MGTU MAMI 9, no. 4-1 (2015): 93–97. http://dx.doi.org/10.17816/2074-0530-67228.

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This article presents the effect of a high-voltage electric signal, sent to electrodes of a high- pressure pump of the engine fuel system, on the consumption supplied to the engine cylinders from the pressure accumulator. The main dependences were determined. They show that increase of high voltage leads to the increase of accumulator pressure and consumption in engine cylinders.

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Jukl, Michal, Adam Polcar, and Jiří Čupera. "Possibilities of Monitoring the Technical Condition of the Combustion Engine with Starter Load Current." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 62, no. 5 (2014): 961–69. http://dx.doi.org/10.11118/actaun201462050961.

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This article deals with the verification of relations between the electric current of engine starter and tightness of the combustion chamber and the possibility of its use for the evaluation of the state in terms of engine wear. Engine wear is closely related to the quality of fuel combustion and also with the amount of produced harmful emissions. On this basis, it would be possible to extend the technical requirements of the protocol OBD to include the indirect control of engine wear. To meet the objectives set out above measurement was carried out by a petrol engine, which was located in the

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Azadeh-Ranjbar, Vahid, Yi Han, Niell Elvin, and Yiannis Andreopoulos. "Non-linear piezoelectric fluidic energy harvesters: The mutual interaction of two oscillating cylinders." Journal of Intelligent Material Systems and Structures 31, no. 20 (2020): 2378–89. http://dx.doi.org/10.1177/1045389x20947178.

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The presence of a bluff body upstream of a cantilever beam promotes persistent, aero-elastic vibrations of the beam. Vortex-induced vibration in an array of two mutually interacting bluff bodies in such configurations undergoing two-degrees of freedom transverse oscillation has not been investigated before. In the present work, we have studied experimentally, the unsteady response of an array of two similar rigid cylinders, positioned side-by-side in reference to the freestream velocity, each one mounted on the upstream end of an elastic cantilever beam. By fitting the beams with piezoelectric

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Tarn, Jiann-Quo. "Exact Solutions for Electroelastic Analysis of Generalized Plane Strain and Torsion of Piezoelectric Cylinders." Journal of Mechanics 17, no. 3 (2001): 149–56. http://dx.doi.org/10.1017/s1727719100004512.

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ABSTRACTExact electroelastic analysis of hollow and solid circular cylinders subjected to a uniform temperature change and electromechanical loads that do not vary axially are presented. Generalized plane strain and torsion of a piezoelectric cylindrical body is formulated in a state space framework. Uniformly valid exact solutions are obtained for hollow and solid circular cylinders subjected to extension, torsion, pressuring, shearing, electric loadings and a uniform temperature change.

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Mohamed, Awad Eisa G., and Abuobeida Mohammed Elhassan. "Development, Kinematic Modeling and Analysis of 3 (DoF) Pneumatic Gantry Robot." European Journal of Engineering Research and Science 5, no. 6 (2020): 646–50. http://dx.doi.org/10.24018/ejers.2020.5.6.1917.

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Low friction pneumatic cylinders are now being considered in applications for which only electric motors or hydraulics were previously considered suitable. One potential application of low friction pneumatics is robotic for metallurgical operations where the high power to weight ratio and low cost could be exploited. As part of an ongoing project to develop a pneumatic robot, this paper presents the kinematic analysis of pneumatic cylinder characteristics that simplifies controller design. Using mathematical modeling and simulation, non-linearity of modern pneumatic systems have been investiga

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Mohamed, Awad Eisa G., and Abuobeida Mohammed Elhassan. "Development, Kinematic Modeling and Analysis of 3 (DoF) Pneumatic Gantry Robot." European Journal of Engineering and Technology Research 5, no. 6 (2020): 646–50. http://dx.doi.org/10.24018/ejeng.2020.5.6.1917.

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Low friction pneumatic cylinders are now being considered in applications for which only electric motors or hydraulics were previously considered suitable. One potential application of low friction pneumatics is robotic for metallurgical operations where the high power to weight ratio and low cost could be exploited. As part of an ongoing project to develop a pneumatic robot, this paper presents the kinematic analysis of pneumatic cylinder characteristics that simplifies controller design. Using mathematical modeling and simulation, non-linearity of modern pneumatic systems have been investiga

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Elkhazen, Mohamed Issam, Walid Hassen, Hakan F. Öztop, et al. "Electro-thermo-convection in dielectric liquid subjected to partial unipolar injection between two eccentric cylinders." International Journal of Numerical Methods for Heat & Fluid Flow 29, no. 1 (2019): 78–93. http://dx.doi.org/10.1108/hff-08-2017-0308.

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Purpose The purpose of this work is to highlight the effects of partial unipolar injection on electro-thermo-convection (ETC) in dielectric liquid contained between two eccentric cylinders. Design/methodology/approach A finite volume method was used to solve governing equations. The study is performed for different parameters, such as radius ratio (0.2 ≤ Γ ≤ 0.6), dimensionless electric Rayleigh number (0 ≤ T ≤ 900), eccentricity (−0.4 ≤ e ≤ 0.4) and thermal Rayleigh number (10 ≤ Ra ≤ 5.105). Findings It is found that heat transfer increases with increase in dimensionless electric Rayleigh num

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Yang, Kyong-Uk, and Jung-Hwan Byun. "The Synchronous Control System Design for Four Electric Cylinders." Journal of the Korea institute of electronic communication sciences 11, no. 12 (2016): 1209–18. http://dx.doi.org/10.13067/jkiecs.2016.11.12.1209.

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Bruno, Oscar P., and Agustin G. Fernandez-Lado. "Rapidly convergent quasi-periodic Green functions for scattering by arrays of cylinders—including Wood anomalies." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 473, no. 2199 (2017): 20160802. http://dx.doi.org/10.1098/rspa.2016.0802.

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This paper presents a full-spectrum Green-function methodology (which is valid, in particular, at and around Wood-anomaly frequencies) for evaluation of scattering by periodic arrays of cylinders of arbitrary cross section—with application to wire gratings, particle arrays and reflectarrays and, indeed, general arrays of conducting or dielectric bounded obstacles under both transverse electric and transverse magnetic polarized illumination. The proposed method, which, for definiteness, is demonstrated here for arrays of perfectly conducting particles under transverse electric polarization, is

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Zhilichev, Y. "Analytical Solutions of Eddy-Current Problems in a Finite Length Cylinder." Advanced Electromagnetics 7, no. 4 (2018): 1–11. http://dx.doi.org/10.7716/aem.v7i4.719.

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Magnetic field and eddy currents in a cylinder of finite length are calculated by separation of variables. The magnetic field outside the cylinder or inside the bore of the hollow cylinder and shell is expressed in terms of Bessel functions. Both axial and transverse applied fields are considered for the solid and hollow cylinders. The equations for the vector potential components are transformed in one-dimensional equations along the radial coordinate with the consequent integration by the method of variation of parameters. The equation for the scalar electric potential when required is also

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Ferreira-Gomes, Bruno, Osvaldo N. Oliveira, and Jorge Ricardo Mejía-Salazar. "Chiral Dielectric Metasurfaces for Highly Integrated, Broadband Circularly Polarized Antenna." Sensors 21, no. 6 (2021): 2071. http://dx.doi.org/10.3390/s21062071.

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We report on the design of a low-profile integrated millimeter-wave antenna for efficient and broadband circularly polarized electromagnetic radiation. The designed antenna comprises a chiral dielectric metasurface built with a 2×2 arrangement of dielectric cylinders with slanted-slots at the center. A broadbeam high-gain with wide axial ratio (AR)<3 dB bandwidth was reached by pairing the electric and magnetic resonances of the dielectric cylinders and the slanted slots when excited by an elliptically polarized driven-patch antenna. This electric-magnetic pairing can be tuned by varying th

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Abdel-Meguid, M., M. H. El Naggar, and J. Q. Shang. "Axial response of piles in electrically treated clay." Canadian Geotechnical Journal 36, no. 3 (1999): 418–29. http://dx.doi.org/10.1139/t99-010.

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Improvement of the shear strength of soft clayey soils around steel pipe piles using high-voltage electrokinetics is investigated in the present study. The experimental setup of a large-scale testing facility is described. Four model piles were installed in two identical cylinders filled with simulated marine sediment. Five electrically insulated electrodes were installed close to the piles to apply a high-voltage electric field in the test cylinder. Negative direct current voltages of -20, -30, and -10 kV were applied in three phases, respectively, for 33 days in the treatment cylinder. Axial

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Bogdevičius, Paulius, Bronislovas Spruogis, and Marijonas Bogdevičius. "HIGH EFFICIENCY PNEUMATIC SYSTEMS COMPRESSORS HYDRODYNAMICS AND TERMODYNAMICS PROCESS RESEARCH / DIDELIO NAŠUMO PNEUMATINĖS SISTEMOS KOMPRESORIŲ HIDRODINAMINIŲ IR TERMODINAMINIŲ PROCESŲ TYRIMAS." Mokslas – Lietuvos ateitis 8, no. 5 (2016): 514–18. http://dx.doi.org/10.3846/mla.2016.966.

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The paper analyzes pneumatic system, which consists of three piston compressors, pipes and reciever. Designed two cylinder piston compressor with an asynchronous electric motor mathematical model. In the mathematical model has been estimated rod mechanism geometry and kinematic parameters also hudrodynamics and thermodynamic processes going in the cylinders. Also there were made mathematical experiment and presented the results of it. Nagrinėjama pneumatinė sistema, sudaryta iš trijų stūmoklinių kompresorių, vamzdžių ir resiverio. Sukurtas dviejų cilindrų stūmoklinio kompresoriaus su asinchron

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Zhao, Yulong, Yuan Zhang, Yan Wang, and Haiyang Liu. "Research on Decoupling Simulation of Electric Platform System Based on ADAMS." Journal of Physics: Conference Series 2213, no. 1 (2022): 012025. http://dx.doi.org/10.1088/1742-6596/2213/1/012025.

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Abstract Aiming at the problem that the cross-linking coupling between the electric cylinders affects the stable operation of the six-degree-of-freedom electric platform, the decoupling design and co-simulation verification of the electric platform are carried out. First, considering the integrity of the platform, the inertial coupling matrix of the electric platform and its characteristics are analysed; further, the overall decoupling system of the electric platform is designed based on the fuzzy decoupling network; finally, the electric platform model is constructed based on ADAMS, and the v

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Chuanchao, Yan, and Zhao Wen. "The use of pneumatic cylinders with return springs when creating mechanical drives with recuperative energy." MATEC Web of Conferences 287 (2019): 01028. http://dx.doi.org/10.1051/matecconf/201928701028.

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The use of pneumatic cylinders with return springs in mechanical drives with reusable energy for reusable and continuum movements, fixing the output link in the extreme positions are considered. A defined range of work operations can be used by these cylinders. The use of pneumatic actuators with return springs in mechanical drives based on linear spring batteries with two springs is proposed. Algorithms for compensating dissipative losses in mechanical spring drives are considered. The maximum mass values that can be moved by such mechanical drives for each size of the pneumatic cylinder are

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Zhang, Siqi, Feng Yang, Wenying Zhang, Wei Zhao, Luhe Yang, and Hong Li. "Tuning Transmission Properties of Two-Dimensional Photonic Crystal Waveguides Using Functional Dielectric Cavities." Micromachines 16, no. 5 (2025): 597. https://doi.org/10.3390/mi16050597.

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In this study, the photonic band structure, transmissivity, and electric field distribution of a two-dimensional photonic crystal coupled waveguide structure are calculated using the supercell technique and finite element method. The waveguide consists of circular KNbO3 and functional dielectric cylinders embedded in air. The dielectric constant of a functional medium cylinder is spatially dependent, which is realized through the electro-optic and Kerr effects. The dielectric constant function is defined as εc(r)=k·r+b (0⩽r⩽rc), where the coefficient k and parameter b can be adjusted by an ext

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Patra, Sanjeet, and Soham Roychowdhury. "Prismatic bifurcation of electro-mechanically loaded stacked di-electric cylinders." International Journal of Non-Linear Mechanics 175 (August 2025): 105119. https://doi.org/10.1016/j.ijnonlinmec.2025.105119.

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Dubov, G. M., I. V. Dvorovenko, S. S. Azikhanov, I. V. Zyryanov, I. A. Logvinov, and D. K. Popov. "Optimisation of the gas cylinder equipment operation of ALROSA's compressed gas utility vehicles in conditions of Yakutia." Mining Industry Journal (Gornay Promishlennost), no. 2/2024 (May 15, 2024): 84–91. http://dx.doi.org/10.30686/1609-9192-2024-2-84-91.

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The paper justifies the relevance of using compressed natural gas as the motor fuel for utility vehicles in conditions of the high north and the Republic of Yakutia. Natural gas as an alternative energy carrier is stated to have a number of advantages over diesel fuel, however, its use in extremely low temperatures, in particular, in Yakutia, is associated with some challenges. A number of technical solutions are proposed to maintain a constant temperature of compressed natural gas contained in the gas cylinders onboard of the utility vehicles. The paper provides a detailed description of the

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Keh, Huan J., Kuo D. Horng, and Jimmy Kuo. "Boundary effects on electrophoresis of colloidal cylinders." Journal of Fluid Mechanics 231 (October 1991): 211–28. http://dx.doi.org/10.1017/s0022112091003373.

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An exact analytical study is presented for the electrophoresis of an infinite insulating cylinder in the proximity of an infinite plane wall parallel to its axis. The electric field is exerted perpendicular to the particle axis in two fundamental cases: normal to a conducting plane and parallel to a non-conducting wall. The electrical double layers adjacent to solid surfaces are assumed to be thin with respect to the particle radius and the gap thickness between surfaces. The two-dimensional electrostatic and hydrodynamic governing equations are solved in the quasi-steady limit using bipolar c

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