Results 91 to 100 of about 2,504,521 (357)
Urban, Planning and Transport ResearchThis study addressed the scarcity of research on exhaust emissions in African countries, focusing on Rwanda amidst urbanization and transportation growth.
Jean Marie Vianney Ntamwiza +1 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Selenium was incorporated into a sol–gel‐derived bioactive glass to enable sustained therapeutic ion release. The selenium‐containing glass preserved bioactivity while selectively inducing cytotoxicity in osteosarcoma cells and maintaining osteoblastic viability.
Breno Rocha Barrioni +7 more
wiley +1 more source
Measurement of exhaust emissions from two J-58 engines at simulated supersonic cruise flight conditions [PDF]
Emissions of total oxides of nitrogen, unburned hydrocarbons, carbon monoxide, and carbon dioxide from two J-58 afterburning turbojet engines at simulated high-altitude flight conditions are reported. Test conditions included flight speeds from Mach 2 to
Holdeman, J. D.
core +1 more source
Fuel consumption and exhaust emissions in the process of mechanized timber extraction and transport
European Journal of Forest Research, 2017 The paper focuses on the determination of fuel consumption (CO2 emission) and exhaust emissions such as CO, HC, NOx, and PM in the process of timber extraction and transport.
P. Lijewski +5 more
semanticscholar +1 more source
Advanced Engineering Materials, EarlyView.Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov +4 more
wiley +1 more source
Ships, ports and particulate air pollution - an analysis of recent studies [PDF]
, 2011 The duration of use is usually significantly longer for marine vessels than for roadside vehicles. Therefore, these vessels are often powered by relatively old engines which may propagate air pollution.
Groneberg, Jan David Alexander +4 more
core +3 more sources
Croatian Journal of Forest Engineering, 2013 This paper presents the test results of exhaust emissions from the engine of a wheeled harvester. On the basis of the present analysis, the ranges of most frequently used engine loads and speeds were determined. The obtained time density characteristics (
Jerzy Merkisz +2 more
doaj
Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A
Advanced Engineering Materials, EarlyView.The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han +5 more
wiley +1 more source
Introduction to NASA contracts [PDF]
, 1976 The NASA Lewis Research Center issued requests for proposal to Avco Lycoming and Teledyne Continental Motors for a contractual effort to establish and demonstrate engine modifications to reduce exhaust emissions safely with minimum adverse effects on ...
Kempke, E. E., Jr.
core +1 more source
The effect of piston bowl temperature on diesel exhaust emissions [PDF]
, 2005 In modern, high-speed, direct injection diesel engines for passenger vehicles, there is extensive impingement of the fuel sprays on to the piston bowl walls.
Ladommatos, N, Xiao, Z, Zhao, H
core +1 more source