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Classical and quantum speed limits [PDF]
Quantum, 2021 The new bound on quantum speed limit (in terms of relative purity) is derived by applying the original Mandelstam-Tamm one to the evolution in the space of Hilbert-Schmidt operators acting in the initial space of states.
Katarzyna Bolonek-Lasoń +2 more
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A mathematical model to set speed limits for vehicles on the highway [PDF]
Transport, 2006 The purpose of this paper is to develop a mathematical model that could guide certain speed limits for vehicles on roads. Excessive speeds on roads have been a major indirect cause of deaths on highways due to the sudden impact of vehicles that lead to ...
S. A. Oke +3 more
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Speed Limits for Macroscopic Transitions
PRX Quantum, 2022 Speed of state transitions in macroscopic systems is a crucial concept for foundations of nonequilibrium statistical mechanics as well as various applications in quantum technology represented by optimal quantum control. While extensive studies have made
Ryusuke Hamazaki
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RNA, 2003 The speed at which RNA molecules decompose is a critical determinant of many biological processes, including those directly involved in the storage and expression of genetic information. One mechanism for RNA cleavage involves internal phosphoester transfer, wherein the 2′-oxygen atom carries out an SN2-like nucleophilic attack on the adjacent ...
Gail Mitchell, Emilsson +3 more
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The speed limit of optoelectronics
Nature Communications, 2022 AbstractLight-field driven charge motion links semiconductor technology to electric fields with attosecond temporal control. Motivated by ultimate-speed electron-based signal processing, strong-field excitation has been identified viable for the ultrafast manipulation of a solid’s electronic properties but found to evoke perplexing post-excitation ...
M. Ossiander +17 more
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Applied Sciences, 2022 Currently, the speed limit for tractor-trailers (TTs) on Egyptian highways is 30 km/h lower than the speed limit for passenger cars (PCs). The main purpose of this article is therefore to evaluate the effects of an increase in TT speed limit on both the ...
Usama Elrawy Shahdah +2 more
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FLUTTER SPEED LIMITS OF SUBSONIC WINGS
Journal of Engineering, 2023 Flutter is a phenomenon resulting from the interaction between aerodynamic and structural dynamic forces and may lead to a destructive instability. The aerodynamic forces on an oscillating airfoil combination of two independent degrees of freedom have ...
Muhsin J. Jweeg +2 more
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The protein folding ‘speed limit’ [PDF]
Current Opinion in Structural Biology, 2004 How fast can a protein possibly fold? This question has stimulated experimentalists to seek fast folding proteins and to engineer them to fold even faster. Proteins folding at or near the speed limit are prime candidates for all-atom molecular dynamics simulations.
Kubelka, Jan +2 more
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The Driver Behaviour and Impact of Speed on Road Safety on the Motorways in Croatia
Promet (Zagreb), 2017 The paper presents the current research related to the speed of traffic flow on the roads of high serviceability. It analyses the speed of vehicle as one of the main causes of traffic accidents.
Goran Zovak, Goran Kos, Boris Huzjan
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