Results 11 to 20 of about 165,971,408 (115)

In-cylinder fuel and lubricant effects on gasoline engine friction [PDF]

open access: yes, 2007
The purpose of the research reported in this thesis was to investigate the viability and quantify the potential gains of improving fuel economy of the gasoline engine through strategic application of additives.
Smith, Oiver Mark Edward   +1 more
core   +6 more sources

Friction and Wear Performance of Lifeboat Launch Slipways [PDF]

open access: yes
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   +9 more sources

Understanding the friction between human fingers and contacting surfaces [PDF]

open access: yes, 2009
Friction tests were carried out to assess the friction between a human finger and contacting surface, in different conditions. Tests examined the effect of normal force, the area of contact, the effect of triangular and rectangular cross-section ...
Tomlinson, Sarah Elizabeth
core   +7 more sources

Effects of a straight oil on friction at the tool-workmaterial interface in machining [PDF]

open access: yes, 2010
Authors would like to express their gratitude to the TOTAL Company for the furniture of the lubricant.The quantification of friction coefficient along the tool-workmaterial interface in machining remains an issue in tribology. This paper aims identifying
RECH, Joël   +7 more
core   +1 more source

Future perspectives on sustainable tribology [PDF]

open access: yes, 2012
This paper highlights the future perspectives of sustainable tribology by examining the economic, environmental and social impact of three tribological case studies.
Hadfield, M.   +10 more
core   +1 more source

Adhesive and molecular friction in tribological conjunctions [PDF]

open access: yes, 2012
This thesis investigates the underlying causes of friction and ine ciency within an internal combustion engine, focusing on the ring-liner conjunction in the vicinity of the power-stroke top dead centre reversal.
Chong, William Woei Fong
core   +6 more sources

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

open access: yes
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   +3 more sources

Dental Microwear Texture Analysis on Radular Teeth

open access: yesAdvanced Materials Interfaces, EarlyView.
3D microwear textures reveal how gastropod radular teeth respond to controlled abrasive contact. Distinct surface signatures distinguish regular abrasion from fracture‐dominated material removal, showing how mineralized coatings, fibrous cores, and substrate properties jointly shape wear and failure in a biological scraping interface.
Wencke Krings   +2 more
wiley   +1 more source

Methanol With Increased Water Content in Internal Combustion Engines

open access: yesChemie Ingenieur Technik, EarlyView.
This study investigates the potential to improve overall Well‐to‐Wheel efficiency by using low‐purity methanol from synthesis of hydrogen and furnace gas as CO2‐source. Combustion efficiency is comparable to pure methanol, while distillation energy could be saved.
Maximilian Dobberkau   +3 more
wiley   +1 more source

Gait alterations increase friction of degenerated articular cartilage: A tribological study

open access: yesKnee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose To investigate the effect of gait alterations associated with osteoarthritis (OA) on the frictional properties of porcine articular cartilage (AC) in intact and degenerative conditions. Methods Forty‐eight cylindrical AC samples were harvested from 12 porcine femur condyles and equally divided between four groups with n = 12 samples ...
Luisa de Roy   +6 more
wiley   +1 more source

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