Results 1 to 10 of about 2,897 (67)

Dairy cows' responses to 2 separation methods after 3 months of cow-calf contact

Journal of Dairy Science
: Weaning and separation remain among some of the biggest challenges for cow-calf contact systems, making the development of practical and low-stress separation methods mandatory for future success of these systems. This study aimed to compare behavioral
Kerstin Barth, Rupert Palme, Anina Vogt   +2 more
exaly   +3 more sources

Modulation of nanoparticle separation by initial contact angle in coffee ring effect

Micro and Nano Systems Letters, 2018
The coffee ring effect occurs when a droplet of a suspension evaporates on a substrate; this process can separate suspended nanoparticles (NPs) by size as a result of geometric constraints at the contact line of the evaporating droplet.
Jaesung Park, Hwapyeong Jeong, Johan Yi   +2 more
exaly   +3 more sources

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

Journal 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

TRIBOELECTRIC NANOGENERATOR BASED ON CONTACT AND SEPARATION AS WELL AS SLIDING OF POLYAMIDE ON POLYTETRAFLUOROETHELENE [PDF]

Journal of the Egyptian Society of Tribology, 2023
Triboelectric nanogenerators (TENGs) have been proposed to harvest the mechanical energy because of their low cost and simplicity of manufacturing. This work discusses the possibility of designing a TENG operated by the contact and separation as well ...
A. S. Ali, M. M. Youssef, W. Y. Ali, N. Elzayady   +3 more
doaj   +1 more source

CONTACT AND SEPARATION OF KAPTON AND POLYMETHYLMETHACRYLATE TRIBOELECTRIC NANOGENERATOR [PDF]

Journal of the Egyptian Society of Tribology, 2022
Triboelectric nanogenerators are devices that utilize the triboelectric effect in order to generate electrical current. Recently, they have become very popular in many applications. The most important are self-powered sensors and energy harvesting.
A. M. Al-Kabbany, W. Y. Ali
doaj   +1 more source

SLIDING OF POLYETHYLENE COMPOSITES ON ARTIFICIAL TURF [PDF]

Journal of the Egyptian Society of Tribology, 2020
Artificial turf made of polyethylene (PE) fibers is extensively applied in sport yards.  It offers cheaper and carefree alternative for natural turf. The high magnitude of electrostatic charge (ESC) generated from polyethylene (PE) fibers has negative ...
A. S. Ali, W. Y. Ali, R. A. Ibrahem
doaj   +1 more source

PROPER MATERIAL SELECTION OF MEDICAL GLOVES [PDF]

Journal 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

REDUCING THE ELECTROSTATIC CHARGE GENERATED FROM SLIDING OF RUBBER ON POLYETHYLENE ARTIFICIAL TURF [PDF]

Journal of the Egyptian Society of Tribology, 2020
Artificial football turfs are growing more popular as they offer a cheaper and carefree alternative for natural football turfs. The major drawback of the artificial turf is the high amount of electrostatic charge (ESC) generated from polyethylene (PE ...
A. S. Ali, A. M. Al-Kabbany, W. Y. Ali, A. M. Samy   +3 more
doaj   +1 more source

ELECTROSTATIC CHARGE GENERATED FROM SLIDING ON POLYETHYLENE TURF [PDF]

Journal of the Egyptian Society of Tribology, 2020
The extensive use of PE fibers in artificial turf necessitates to study their electrification when they rub rubber surface. Electrostatic charge (ESC) generated from the contact and separation as well as sliding of rubber against PE turf was discussed in
A. S. Ali, W. Y. Ali, A. M. Samy
doaj   +1 more source

TRIBOELECTRIFICATION OF SHOE SOLES 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 in 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
doaj   +1 more source