Results 31 to 40 of about 401,625 (302)
Permeability of Magnetic Cores with Air Gaps [PDF]
Materials, 2022 The influence of the geometric dimensions of the cut core and the number and size of air gaps on the effective permeability was investigated. Using dimensional analysis, an equation was obtained that relates the permeability of the cut core to the simplest dimensionless combination of the mean magnetic flux length l, single air gap length lg1, the ...
Yuri N. Starodubtsev +3 more
openaire +3 more sources
Three-Dimensional Permeability Study of Open Graded Friction Course (OGFC) Based on CFD Simulation
Civil and Environmental Engineering, 2022 This research evaluated permeability and hydraulic conductivity of Open Graded Friction Course (OGFC) in multiple directions. Using Computational Fluid Dynamics (CFD), Ansys Fluent was utilized to simulate the laminar flow model for twelve cubic ...
Elkhateeb Omar +3 more
doaj +1 more source
Analytical magnetic field analysis of Halhach magnetized permanent-magnet machines [PDF]
, 2004 We develop analytical models for predicting the magnetic field distribution in Halbach magnetized machines. They are formulated in polar coordinates and account for the relative recoil permeability of the magnets. They are applicable to both internal and
Howe, D., Xia, Z.P., Zhu, Z.Q.
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Wood Permeability in Eucalyptus grandis and Eucalyptus dunnii
Floresta e Ambiente, 2017 The objective of this study was to evaluate the flow of air and water in Eucalyptus grandis and Eucalyptus dunnii wood. Wood was collected from four trees aged 37 years in an experimental plantation of the Federal University of Lavras, Brazil.
Raphael Nogueira Rezende +4 more
doaj +1 more source
Journal of Engineering, 2022 Wearing clothes is an intermediate channel by exchange of air released from human bodies and environments to bring breathing stability and to control body temperature.
Erkihun Zelalem Liyew
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Effect of some comfort properties on performance properties of sports abaya fabrics for women [PDF]
Journal of Architecture, Art & Humanistic Science, 2022 Sports have received great attention in the Kingdom of Saudi Arabia’s vision 2030, as it was stated that the government will support sports of all kinds, and expand opportunities associated with this trend.
Morooj Helmi, Salwa Tashkandi
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Comfort related woven fabric transmission properties made of cotton and nylon
Fashion and Textiles, 2022 The interaction of water and air i.e. moisture regain, water vapor transmission, wicking and air permeability with woven textiles are tested to investigate the comfort of woven fabrics made of nylon, cotton, and cotton–nylon mixtures with different yarn ...
Biruk Fentahun Adamu, Jing Gao
doaj +1 more source
The effects of air permeability, background ventilation and lifestyle on energy performance, indoor air quality and risk of condensation in domestic buildings [PDF]
, 2015 Effective and efficient ventilation is essential when improving energy performance and Indoor Air Quality (IAQ) of buildings. Reducing air permeability can considerably improve the energy performance of buildings; however, making the buildings more ...
Hashemi, A. +3 more
core +5 more sources
Journal of Rock Mechanics and Geotechnical Engineering, 2023 During the operation of compressed air storage energy system, the rapid change of air pressure in a cavern will cause drastic changes in air density and permeability coefficient of sealing layer.
Shikang Qin, Caichu Xia, Shuwei Zhou
doaj +1 more source
Prediction of the electromagnetic torque in synchronous machines through Maxwell stress harmonic filter (HFT) method [PDF]
, 2006 For the calculation of torque in synchronous motors a local method is analysed, based on the Maxwell stress theory and the filtered contributions due to the harmonics of the magnetic vector potential in the motor air-gap.
Popescu, M.
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