Search Results - "Bek, M.A."
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Performance evaluation of a humidification–dehumidification unit integrated with wick solar stills under different operating conditions
Published in Desalination (01-09-2018)“…A comprehensive hybrid distillation system of humidification and dehumidification (HDH) unit incorporated by six wick solar stills was designed, fabricated,…”
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2
Experimental investigation of a novel indirect solar dryer implementing PCM as energy storage medium
Published in Energy conversion and management (01-07-2014)“…[Display omitted] •The performance of a novel indirect solar dryer is investigated experimentally.•PCM, paraffin wax, is used as energy storage medium.•The…”
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3
The stability analysis for the motion of a nonlinear damped vibrating dynamical system with three-degrees-of-freedom
Published in Results in physics (01-09-2021)“…•Motion of 3DOF damped spring pendulum.•Obtaining high accuracy of solutions using the MSM.•Investigation of resonance cases.•Studying the nonlinear stability…”
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4
The asymptotic analysis and stability of 3DOF non-linear damped rigid body pendulum near resonance
Published in Ain Shams Engineering Journal (01-03-2022)“…The pendulum's motion better understanding enhances the researcher's ability to solve many engineering challenges. This article explores the motion of…”
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5
The asymptotic analysis for the motion of 3DOF dynamical system close to resonances
Published in Alexandria engineering journal (01-08-2021)“…This study explores the nonlinear motion of a double pendulum in which its pivot point travels on an elliptical trajectory with a constant angular speed, and…”
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6
On the motion of a damped rigid body near resonances under the influence of harmonically external force and moments
Published in Results in physics (01-12-2020)“…This paper presents the motion of a harmonically excited dynamical system with three degrees of freedom (3-DOF) in which it consists of a connected rigid body…”
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Studying the influence of external torques on the dynamical motion and the stability of a 3DOF dynamic system
Published in Alexandria engineering journal (01-09-2022)“…This article explores the planar motion of a novel dynamical system of three degrees of freedom (DOF) triple pendulum, consisting of a double rigid pendulum…”
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8
The effect of unplanned growth of urban areas on heat island phenomena
Published in Ain Shams Engineering Journal (01-12-2018)“…With the advent of the housing problem in Egypt, many residents have resorted to set up informal housing scheme to achieve the need of housing. This has…”
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9
The vibrational motion of a spring pendulum in a fluid flow
Published in Results in physics (01-12-2020)“…In this work, the response of two degrees of freedom for a nonlinear dynamical model represented by the motion of a damped spring pendulum in an inviscid fluid…”
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10
The dynamical analysis for the motion of a harmonically two degrees of freedom damped spring pendulum in an elliptic trajectory
Published in Alexandria engineering journal (01-02-2022)“…This article investigates the motion of two degrees of freedom non-linear dynamical system represented by a spring pendulum in which its suspension point moves…”
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11
On the motion of a pendulum attached with tuned absorber near resonances
Published in Results in physics (01-12-2018)“…In this paper, the motion of two degrees of freedom of a dynamical system consists of a simple pendulum attached with tuned absorber subject to harmonic…”
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12
An augmented productivity of solar distillers integrated to HDH unit: Experimental implementation
Published in Applied thermal engineering (25-02-2020)“…•Effects of the wooden cellulose and aspen pad performance as packing materials.•Draining the brine excess hot water vapor from wick solar stills to feed the…”
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13
On the motion of a harmonically excited damped spring pendulum in an elliptic path
Published in Mechanics research communications (01-01-2019)“…•This work touches an important problem which is the motion of a nonlinear damped spring pendulum carrying a rigid body.•The supported point moves in an…”
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14
Solar dryers with PCM as energy storage medium: A review
Published in Renewable & sustainable energy reviews (01-05-2014)“…Using phase change material (PCM) as an energy storage medium is one of the most efficient ways of storing thermal energy. The latent heat storage provides…”
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15
Performance evaluation of a new counter flow double pass solar air heater with turbulators
Published in Solar energy (01-10-2018)“…•A counter flow double pass SAH has been proposed with two new modifications.•Installing aluminum cans to the absorbing plate for improving the heater…”
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16
Chaotic responses of a harmonically excited spring pendulum moving in circular path
Published in Nonlinear analysis: real world applications (01-10-2009)“…In this paper, the chaotic response of a harmonically excited spring pendulum that is moving in circular path is studied. This system is a nonlinear…”
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17
On the Motion of Harmonically Excited Spring Pendulum in Elliptic Path Near Resonances
Published in Advances in mathematical physics (01-01-2016)“…The response of a nonlinear multidegrees of freedom (M-DOF) for a nature dynamical system represented by a spring pendulum which moves in an elliptic path is…”
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Removal of Various Pollutants from Leachate Using a Low-Cost Technique: Integration of Electrolysis with Activated Carbon Contactor
Published in Water, air, and soil pollution (01-12-2014)“…Landfill leachate contains a high concentration of organic pollutants that are active agents in water pollution. This study was conducted to remove various…”
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