Results 41 to 50 of about 4,736,953 (298)
Quantum vacuum self-propulsion and torque [PDF]
International Journal of Modern Physics AThis paper summarizes our recent efforts to understand spontaneous quantum vacuum forces and torques, which require that a stationary object be out of thermal equilibrium with the blackbody background radiation. We proceed by a systematic expansion in powers of the electric susceptibility.
Kimball A. Milton +2 more
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On self-propulsion by oscillations in a viscous liquid
Journal of Differential Equations71 pages, 2 ...
Giovanni P. Galdi +2 more
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Self-propulsion of an active polar drop [PDF]
The Journal of Chemical Physics, 2019 We investigate the self-propulsive motion of a drop containing an active polar field. The drop demonstrates spontaneous symmetry breaking from a uniform orientational order into a splay or bend instability depending on the types of active stress, namely, contractile or extensile, respectively.
openaire +3 more sources
Hydrodynamic propulsion of human sperm [PDF]
, 2009 The detailed fluid mechanics of sperm propulsion are fundamental to our understanding of reproduction. In this paper, we aim to model a human sperm swimming in a microscope slide chamber.
Green, Richard B. +7 more
core +1 more source
Zhongguo Jianchuan Yanjiu, 2022 ObjectivesAiming at the replacement of propellers behind surface ships with pumpjet propulsion systems, this paper introduces a novel method for predicting full-scale power performance based on statistical learning.
Qiongfang YANG +5 more
doaj +1 more source
THE FUTURE OF SPACECRAFT NUCLEAR PROPULSION [PDF]
, 2014 This paper summarizes the advantages of space nuclear power and propulsion systems. It describes the actual status of international power level dependent spacecraft nuclear propulsion missions, especially the high power EU-Russian MEGAHIT study ...
Jansen, Frank, F. JANSEN
core +1 more source
IEEE Access, 2020 This article presents a specialized control system for an unmanned surface cleaning vessel (USCV) employing a pump-valve propulsion system. The system has three operational modes, including manual remote-control mode, self-automated cruise mode, and self-
Yaojing Luo +3 more
doaj +1 more source
Artificial molecular machines and motors—Design and control of nanoscale motion
FEBS Letters, EarlyView.Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley +1 more source
Self‐Propulsion by Directed Explosive Emulsification [PDF]
Advanced MaterialsAbstractAn active droplet system, programmed to repeatedly move autonomously at a specific velocity in a well‐defined direction, is demonstrated. Coulombic energy is stored in oversaturated interfacial assemblies of charged nanoparticle‐surfactants by an applied DC electric field and can be released on demand.
Xuefei Wu +10 more
openaire +3 more sources
FEBS Open Bio, EarlyView.Research is strongest when conducted alongside patients, not just about them. Patient research organizations help integrate patient perspectives into research priorities, study design, and scientific meetings, leading to meaningful patient outcomes and development of relevant therapies.
Jenica H. Kakadia +9 more
wiley +1 more source