Results 21 to 30 of about 1,212,846 (264)
A Bacterial Swimmer with Two Alternating Speeds of Propagation [PDF]
Biophysical Journal, 2013 We recorded large data sets of swimming trajectories of the soil bacterium Pseudomonas putida. Like other prokaryotic swimmers, P. putida exhibits a motion pattern dominated by persistent runs that are interrupted by turning events. An in-depth analysis of their swimming trajectories revealed that the majority of the turning events is characterized by ...
Theves, Matthias +4 more
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A Two‐speed Fine Adjustment [PDF]
Journal of the Royal Microscopical Society, 1903 n ...
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Журнал інженерних наук, 2019 Fractal image compression algorithm is known for allowing very high compression rates (the best examples – up to 1 000 times with acceptable visual quality) for real photos of natural objects, which is not possible for other lossy compression methods ...
Maydaniuk V. P. +2 more
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Implementing two-qubit gates at the quantum speed limit
Physical Review Research, 2023 The speed of elementary quantum gates, particularly two-qubit gates, ultimately sets the limit on the speed at which quantum circuits can operate. In this work, we experimentally demonstrate commonly used two-qubit gates at nearly the fastest possible ...
Joel Howard +10 more
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The minimal invasion speed of two competing species in homogeneous environment
Mathematics in Applied Sciences and Engineering, 2023 Biological invasion has become an important element of global changes. In this paper, we use a reaction-diffusion system to discuss the minimal invasion speed of two competing species in the homogeneous environment. The general condition for the minimum
Xu Li, Tingting Zhang, Qiming Zhang
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Applied Sciences, 2020 The energy efficiency of a multi-pump system consisting of two low-power (0.75 kW) pumps operating in parallel mode and a single-pump mechanism (1.5 kW) is compared in this study.
Safarbek Oshurbekov +4 more
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Determining Free-Flow Speed on Different Classes of Rural Two-Lane Highways
Promet (Zagreb), 2023 Current analytical free-flow speed models consider all rural two-lane highways as the same road type despite their different functional significance in the network.
Nemanja Stepanović +2 more
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Theory of adaptive mechanical drive
Theoretical and Applied Mechanics Letters, 2021 A kinematic chain with two degrees of freedom and one input can have definability of motion only if there is an additional constraint of forces and velocities. Such a chain is a mechanism that has the brand new property of force adaptation.
K.S. Ivanov
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Fence Patrolling with Two-speed Robots
Proceedings of 5th the International Conference on Operations Research and Enterprise Systems, 2016 A fence, represented by a unit interval is to be patrolled collectively by n robots. At any moment a robot may move in one of the two possible states: walking or patrolling. Each state is associated with a maximal moving speed which cannot be exceeded. A robot may have a unique pair of speeds, but its patrolling speed is always smaller than its walking
Jurek Czyzowicz +4 more
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Two Capacitive Micro-Machined Ultrasonic Transducers for Wind Speed Measurement
Sensors, 2016 This paper presents a new wind speed measurement method using a single capacitive micro-machined ultrasonic transducer (CMUT). The CMUT was arranged perpendicular to the direction of the wind flow, and a reflector was set up a short distance away, facing
Gia Thinh Bui +2 more
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