Results 101 to 110 of about 71,674 (211)

Investigating the Effect of Engine Lubricant Viscosity on Engine Friction and Fuel Economy of a Diesel Engine

Fuel economy is affected, both by fuel and engine lubricant quality. Engine lubricant quality plays a vital role in reduction of fuel consumption by effective reduction of friction between the contact surfaces of engine parts (piston ring assembly ...
Singh, Devendra
core  

Estimation of the parameters of nonequilibrium grain boundaries from the high-temperature background of grain boundary internal friction

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов
The physical processes leading to the formation of nonequilibrium grain boundaries in nanocrystalline and ultrafine-grained materials are considered. The problem is solved for a two-dimensional diffusion equation on a boundary segment exposed to variable
V.G. Kul’kov, D.Sh.. Norov
doaj   +1 more source

Internal friction associated with the melting of Pb nanoparticles in an Al matrix

, 2007
Pb nanoparticles embedded in an Al matrix were prepared by ball milling and the internal friction behavior associated with the melting of Pb nanoparticles was studied by means of dynamic mechanical analyzer.
Zheng K, Fei GT, Cui P, Zhang RL, Chen XM   +4 more
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Precipitation of Carbides in FeCr₁₅Al_x Alloys with Different Heat Treatments Studied by Internal Friction Technique

Crystals
Fe-Cr-based alloys have great potential for large-scale vibration and noise reduction. Appropriate heat treatment is important for improving their damping capacity.
Yan Sun, Yuankai Jiang, Hongquan Zhang, Xinggang Wang, Weibin Jiang, Meng Sun   +5 more
doaj   +1 more source

Friction and Wear Performance of Lifeboat Launch Slipways

The Royal National Lifeboat Institution provides a marine search and rescue service using lifeboat stations sited along the coast of the UK and Ireland.
Thomas, Ben
core  

Characterising the friction and wear between the piston ring and cylinder liner based on acoustic emission analysis

, 2014
In this paper, an experimental investigation was carried out to evaluate the friction and wear between the cylinder liner and piston ring using acoustic emission (AE) technology.
Gu, Fengshou, Ball, Andrew, Li, Guoxing, Wang, Tie, Wei, Nasha   +4 more
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ANOMALOUS INTERNAL FRICTION PEAKS AS FUNCTION OF STRAIN AMPLITUDE

, 1985
Anelasticity, as suggested by Zener /1/ in 1948, gives rise to internal friction which is independent of the strain amplitude. The internal friction which increases with an increase of strain amplitude was explained by Koehler /2/ and Granato and Lücke ...
T.S. KÊ
core   +1 more source

Effects of extrusion on Young’s modulus and internal friction of magnesium alloys with various long period ordered structure content

Frontier Materials & Technologies
The relevance of this work stems from the growing interest in magnesium alloys with long period ordered structure (LPSO) due to their unique mechanical properties.
Vladimir V. Kaminskii, Dmitrii A. Kalganov, Maksim V. Dorogov, Sergei A. Philippov, Alexey E. Romanov   +4 more
doaj   +1 more source

Rotor internal friction instability

, 1985
Two aspects of internal friction affecting stability of rotating machines are discussed. The first role of internal friction consists of decreasing the level of effective damping during rotor subsynchronous and backward precessional vibrations caused by ...
Bently, D. E., Muszynska, A.
core  

Robot assisted Internal Mammary Artery detection for coronary revascularisation surgery

, 2010
This paper presents a semi-automatic robotic system supporting a surgeon in the harvesting of the internal mammary artery (IMA) for an open chested intervention in coronary revascularisation surgery.
Vazquez, Adrian, Hirzinger, Gerd, Florian A Fröhlich, Passig, Georg, Georg Passig, Gerd Hirzinger, Adrian Vazquez, Fröhlich, Florian A.   +7 more
core   +1 more source