Results 11 to 20 of about 138,492 (359)
Journal of Thermal Science and Technology, 2021 Abnormal combustion such as pre-ignition and knocking is becoming one of the biggest problems in the latest gasoline engines that have a higher compression ratio and boosting for higher efficiency.
Kengo KUMANO +5 more
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Energies, 2021 The main purpose of this study is to optimize engine performance and emission characteristics of off-road engines with retarded spark timing compared to MBT by repurposing the existing passenger engine.
Seungmin Kim +4 more
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Knock, Knock: Who’s There? [PDF]
Circulation, 2013 It has become apparent that major sources of reactive oxygen species (ROS) in mammalian cells are the NADPH oxidases. These multimeric enzymes are composed of membrane-bound catalytic subunits, or Nox enzymes, and a small docking subunit called p22phox.
Hana A, Itani +2 more
openaire +2 more sources
Mechanical Engineering Journal, 2022 It is generally known that the temperature and mixture concentration in the combustion chamber influence knock intensity. It is assumed that the distribution of temperature and mixture concentration in the end-gas region of a two-stroke engine differs ...
Sota NAKAMURA +5 more
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Improving Fuel Economy and Engine Performance through Gasoline Fuel Octane Rating
Energies, 2020 The octane number is a measure of the resistance of gasoline fuels to auto-ignition. Therefore, high octane numbers reduce the engine knocking risk, leading to higher compression threshold and, consequently, higher engine efficiencies. This allows higher
José Rodríguez-Fernández +4 more
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Influence of fuel properties on knock under lean combustion conditions
Nihon Kikai Gakkai ronbunshu, 2021 Internal combustion engines today are required to provide even higher levels of thermal efficiency. Raising the compression ratio and applying lean combustion are effective measures for increasing the thermal efficiency of internal combustion engines ...
Teruhiko OTOKOZAWA +2 more
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Open Physics, 2021 Knocking becomes an increasingly important issue in direct injection natural gas engines with the application of new combustion modes. In this article, the knocking characteristics of natural gas engine operating in stratified combustion mode were ...
Zhang Qiang +3 more
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Energies, 2021 Engine knock determination has been conducted in various ways for spark timing calibration. In the present study, a knock classification model was developed using a machine learning algorithm.
Junghwan Kim
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صناعة السکة بمصر فى عصر محمد علی (1220 – 1264هـ/1805-1848م) " دراسة فی تطورها وآثارها علی النقود" [PDF]
Journal of General Union of Arab Archaeologists, 2016 This research sheds light on the development and effects of coinage manufacturing in Egypt during the period of Mohammed Ali and the impact on its manufacturing, which was firstly done by primitive hand tools producing low quality coinage whether in its ...
Dr.Osama Ahmed Mokhtar Hassan Mostafa
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Knocking in the Game of Gin Rummy
, 2021 We perform an empirical study of Gin Rummy knocking strategies, drawing insight from a population of AI players that vary in both discarding and knocking strategies.
Maravich, Ryzeson C. +2 more
core +1 more source