Results 11 to 20 of about 329,608 (263)
Isotope Separation by Multiple Contact, (I) [PDF]
Journal of Nuclear Science and Technology, 1967 An analytical procedure for the reverse frontal process has been developed for the case in which a finite amount of one chemical substance is equilibrated isotopically step by step with the same amount of another substance, and the isotopic equilibrium separation factor remains constant throughout the exchange. The isotope effect between two phases was
Junichi SHIMOKAWA, Fumiaki KOBAYASHI
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The Charging Events in Contact-Separation Electrification [PDF]
Scientific Reports, 2018 AbstractContact electrification (CE)—charging of surfaces that are contacted and separated, is a common phenomenon, however it is not completely understood yet. Recent studies using surface imaging techniques and chemical analysis revealed a ‘spatial’ bipolar distribution of charges at the nano dimension, which made a paradigm shift in the field ...
Musa, Umar G. +3 more
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ELECTROSTATIC CHARGE GENERATED FROM THE CONTACT-SEPARATION AND SLIDING OF POLYAMIDE AND POLYESTER STRINGS BLENDED BY CARBON FIBERS ON COTTON [PDF]
Journal of the Egyptian Society of Tribology, 2023 Generation of electrostatic charge (ESC) of textiles controls the quality and comfort of clothes. The present work discusses the ESC generated from the contact-separation and sliding of polyamide and polyester strings blended by carbon fibers on cotton.
H. Suaad, M. K. Mohamed, W. Y. Ali
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ELECTROSTATIC CHARGE GENERATED FROM FRICTIONBETWEEN SURGEON SCRUB SUITAND DISPOSABLE COVERS IN HOSPITALS [PDF]
Journal of the Egyptian Society of Tribology, 2019 Electrostatic charges (ESC), generated from friction ofsurgeon scrub suitand disposable covers of polyester, have negative effect in health of the wearer. ESC building up on human skin are very harmful and can create serious health problems. Besides, the
A. Ahmed Fouly, W. Y. Ali
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ELECTROSTATIC CHARGE GENERATED FROM THE CONTACT-SEPARATION AND SLIDING OF RAYON/POLYESTER TEXTILES ON WOOL [PDF]
Journal of the Egyptian Society of Tribology, 2023 The quality and comfort of textiles depends on the intensity of electrostatic charge (ESC) generated due to their contact and friction with other textiles.
H. Suaad, M. K. Mohamed, W. Y. Ali
doaj +1 more source
TRIBOELECTRIFICATION OF SHOE COVER AND FLOOR IN HOSPITALS [PDF]
Journal of the Egyptian Society of Tribology, 2015 Electric static charges generated from friction of engineering materials have a negative effect on their applications. The increased use of polymeric materials raised the importance of studying that effect.
A. S. Ali, W. Y. Ali, Y. M. El-Sherbiny
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Optimization of TriboelectricNanogenerator for Small Power Electronics [PDF]
E3S Web of Conferences, 2020 TriboelectricNanogenerators (TENGs) is a new era energy source to power portable small electronic devices. This paper presents the fabrication of vertical contact separation mode TENGs.
Mainra Jashan Kumar +2 more
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Advances in Materials Science and Engineering, 2021 Based on Kogut and Etsion’s model (KE model), a statistical method is used to establish a model of normal contact stiffness of fixed joint surface during unloading after first loading.
Donghua Yin +5 more
doaj +1 more source
Sectional matrix system in reconstruction of proximal contact in class ii resin restoration
Update Dental College Journal, 2021 Background: Clinicians always faces some challenges to reconstruct proper proximal contact while restoring class-II cavity with composite resin due to its viscosity, elastic property and polymerization shrinkage.
Norun Nahar +3 more
doaj +3 more sources
Contact mechanics with adhesion: Interfacial separation and contact area [PDF]
EPL (Europhysics Letters), 2008 We study the adhesive contact between elastic solids with randomly rough, self affine fractal surfaces. We present molecular dynamics (MD) simulation results for the interfacial stress distribution and the wall-wall separation. We compare the MD results for the relative contact area and the average interfacial separation, with the prediction of the ...
Yang, C. +3 more
openaire +2 more sources