Results 11 to 20 of about 199,269 (265)

Evaluation of the effect of different points of orthodontic force application (A typodont study) [PDF]

open access: yesAl-Rafidain Dental Journal, 2011
Aims: To determine the effect of different points of force application on dimensional positions and the ratio of space closure of maxillary canine using sliding mechanics.
Omar KhM Thiab   +2 more
doaj   +1 more source

Practical research of free standing rack (Seismic experiment study on full scale free standing rack)

open access: yesNihon Kikai Gakkai ronbunshu, 2015
The spent fuel taken out of a plant reactor is temporarily stored in a spent fuel rack. This fuel will often have to be stored in the rack for long periods before it can be moved to a reprocessing facility. Therefore, the spent fuel rack must have a high
Akihisa IWASAKI   +6 more
doaj   +1 more source

Three-dimensional integral dry friction model for the motion of a rectangular body

open access: yesAdvanced Engineering Research, 2021
Introduction. A three-dimensional dry friction model in the interaction of a rectangular body and a horizontal rough surface is considered. It is assumed that there is no separation of the body from the horizontal surface.
M. S. Salimov, I. V. Merkuriev
doaj   +1 more source

TRIBOELECTRIC NANOGENERATOR BASED ON TRIBOELECTRIFICATION AND MAGNETIC FIELD [PDF]

open access: yesJournal of the Egyptian Society of Tribology, 2023
The present work discusses the possibility of designing triboelectric nanogenerator (TENG) operated by triboelectrification and magnetic field. The contact-separation and sliding, of polytetrafluoroethylene (PTFE) and polyamide (PA), were operated by the
A. S. Ali   +3 more
doaj   +1 more source

Generation of a Layer of Severe Plastic Deformation near Friction Surfaces in Upsetting of Steel Specimens

open access: yesMetals, 2018
Narrow layers of severe plastic deformation are often generated near frictional interfaces in deformation processes as a result of shear deformation caused by friction.
Sergei Alexandrov   +4 more
doaj   +1 more source

3D numerical simulation of seismic failure of concrete gravity dams considering base sliding

open access: yesModelling in Civil Environmental Engineering, 2022
The sliding of dam base along dam-foundation rock interface during earthquake excitation can decrease the earthquake response of the dam. The present study reveals a numerical simulation of the seismic failure response for Oued Fodda concrete gravity dam,
DJAMEL Ouzandja, MOKHTAR Messaad
doaj   +1 more source

VOLTAGE GENERATED FROM TRIBOELECTRIFICATION OF RABBIT FUR AND POLYMERIC MATERIALS [PDF]

open access: yesJournal of the Egyptian Society of Tribology, 2022
Triboelectric Nanogenerators are emerging technology with huge potential in a variety of fields, from green energy to self-powered sensors. They are the products of triboelectrification which causes a generation of electrostatic charges on any two ...
A. S. Ali, A. M. Al-Kabbany, W. Y. Ali
doaj   +1 more source

Self-Lubricating Effect of FeWO4 Tribologically Synthesized from WC-(Fe-Mn-C) Composite during High-Speed Sliding against a HSS Disk

open access: yesLubricants, 2022
WC-(Fe-Mn-C) composites with γ-iron and γ + α’ matrices were sintered and then tested at sliding speeds in the range 7–37 m/s. The coefficient of friction was exponentially reduced as a function of sliding speed reaching its minimum at 37 m/s.
Nikolai Savchenko   +2 more
doaj   +1 more source

ENHANCING THE FRICTIONAL PERFORMANCE OF SPORT GLOVES [PDF]

open access: yesJournal of the Egyptian Society of Tribology, 2020
The manufacturers of gloves need to enhance the gripping ability to develop their quality, where the adequate grip and tactile response under wide range of conditions are desired.
R. A. Ibrahem   +4 more
doaj   +1 more source

PROPER MATERIAL SELECTION OF MEDICAL GLOVES [PDF]

open access: yesJournal of the Egyptian Society of Tribology, 2020
The possibility of making use of the electrostatic charge (ESC) generated on the surfaces of polymeric materials of the protective equipment such as gloves is investigated in the present work to develop their efficiency to protect the wearer from viruses.
A. S. Ali, W. Y. Ali
doaj   +1 more source

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