Results 31 to 40 of about 10,163 (249)

INCREASING THE SAFETY OF WALKING ON RUBBER FLOOR MAT [PDF]

Journal of the Egyptian Society of Tribology, 2013
The present research investigates friction coefficient of bare foot sliding against four types of rubber floor mats to simulate the sliding conditions in bathrooms. Tests were carried out at dry and detergent wetted mats.
A. T. Hassouna, W. Y. Ali, Y. M. El-Sherbiny   +2 more
doaj   +1 more source

DRY AND WATER WETTED SLIDING OF RUBBER ON EPOXY FLOORING FILLED BY THERMOPLASTIC POLYMERS [PDF]

Journal of the Egyptian Society of Tribology, 2013
The aim of the present work is to investigate the friction of epoxy flooring materials filled by thermoplastic polymers and sliding against rubber. Experiments were carried out at dry and water wetted sliding conditions.
Y. M. Youssef, M. I. Khashaba, W. Y. Ali
doaj   +1 more source

FRICTION COEFICIENT OF SEMI-SPHERICAL RUBBER PROTRUSIONS SLIDING AGAINST RUBBER [PDF]

Journal of the Egyptian Society of Tribology, 2013
It is necessary to reduce slip and fall in bathrooms, workshops, kid gardens, halls and walking yards. The present work aims to test the frictional behavior of rubber semi-spherical balls of different diameter and hardness to have specific information ...
Y. M. El-Sherbiny, Y. G. Al-Qaham, W. Y. Ali   +2 more
doaj   +1 more source

A Global Methane Observation System to Reduce Uncertainty for Anthropogenic and Natural Sources and Sinks for Detecting and Attributing Climate Feedbacks

Advanced Science, EarlyView.
Conceptual illustration of a Global Ecosystem Methane Observing System (GEM‐OS) integrating satellites, aircraft, atmospheric networks, and ecosystem measurements to quantify methane emissions from anthropogenic and natural sources. The multi‐scale observing framework improves source attribution, reduces uncertainty in regional methane budgets, and ...
P. Ciais, S. Peng, J. Chang, F. Li, Q. Zhu, K. Yuan, G. Hugelius, H. Li, Y. Cai, F. Chevallier, K. Tibrewal, E. A. Kort, K. Arndt, J. Watts, B. Buma, N. Besic, P. I. Palmer, H. Cadillo‐Quiroz, E. Euskirchen, M. J. Gondwe, A. Hoyt, R. Jackson, S. Malone, D. Monteverde, S. Natali, M. Ramonet, C. Rey‐Sanchez, L. B. Sagang, E. A. G. Schuur, R. Vargas, R. Varner, Z. Zhang, B. Poulter   +32 more
wiley   +1 more source

Abafi Aigner Lajos and the secret societies in Banat in the second half of the 18th century

Swedish Journal of Romanian Studies
This study analyses the contributions of Abafi Aigner Lajos, one of the most significant figures in Central European Masonic historiography, to our understanding of Masonic lodges and secret societies in the Banat region during the second half of the ...
Attila Varga
doaj   +1 more source

INFLUENCE OF VOLTAGE ON FRICTION COEFFICIENT DISPLAYED BY OIL ADDITIVES [PDF]

Journal of the Egyptian Society of Tribology, 2013
The present work investigates the influence of direct current (D. C.) voltage, applied on the sliding surfaces lubricated by different oil additives dispersed in paraffin oil, on the friction coefficient. The additives are graphite, molybdenum disulfide (
M. K. Mohamed
doaj   +1 more source

Voltage‐Reconfigurable Magneto‐Ionic Nanolayers in Dot Arrays for Probabilistic, Materials‐Engineered Security Primitives

Advanced Science, EarlyView.
A magneto‐ionic security‐by‐materials‐design strategy exploits voltage‐driven N3– migration in selectively contacted FeCoN dots, creating reconfigurable sub‐15 nm ferromagnetic sublayers with deterministic and/or probabilistic (single‐domain↔vortex) states, voltage‐tunable probabilities and fully stochastic orientation/chirality.
Irena Spasojevic, Federica Celegato, Alessandro Magni, Paola Tiberto, Jordi Sort   +4 more
wiley   +1 more source

SAND EROSION TESTING OF POLYMERIC COATINGS OF STEEL SHEETS [PDF]

Journal of the Egyptian Society of Tribology, 2012
The sand erosion testing of transparent polymeric coatings of steel sheets was investigated. The tested coatings were aimed to coat the vehicle surfaces as well as lamp covers to defeat sand erosion during dusty storms.
Y. Al-Qaham, A. Breemah, M. K. Mohamed, W. Y. Ali   +3 more
doaj   +1 more source

‘Turkeys Cannot Vote for Christmas’: Why Epistemic Disobedience in an Anti‐Black World Matters

Australian Journal of Social Issues, EarlyView.
ABSTRACT Never in the history of global coloniality has the idea of epistemic disobedience been as important as in the 21st century. This is not only because the struggle for decolonisation has shifted from physical confrontation between the coloniser and the colonised into a battle of ideas but also because the former has deployed the idea of ...
Morgan Ndlovu
wiley   +1 more source

Masculinity in the Margins: Race, Gang Violence, and the Code of the Street

Social Sciences
This study examines the intersection of race, class, and gang violence in Singapore, with a particular focus on the structural dynamics linking racial minorities, street gangs, and institutionalized Chinese secret societies—the archetype of organized ...
Narayanan Ganapathy
doaj   +1 more source