Results 61 to 70 of about 41,496 (286)
Prof. Greenhill on “Kinematics and Dynamics” [PDF]
Nature, 1888 MAY I ask space for a few short comments on Prof. Greenhill's letter in your issue of May 17 (p. 54), so far as it is directed against myself.
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Symbolic Dynamics, Mixing and Entropy in the Three-Body Problem
Open Astronomy, 2016 We use symbolic dynamics in the classic equal-mass free-fall three-body problem. Different methods for constructing symbolic sequences (in the process of numerical integration of trajectories) allow one to demonstrate (and illustrate on the Agekian ...
Mylläri A. +4 more
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Advanced Materials, EarlyView.Coupled materials design enables a monolithic fiber that integrates complementary sensing regimes into a single wearable strand. By preserving informative signal features across subtle physiological deformation, large body motion, and mixed mechanical inputs, the dual‐gradient architecture generates synchronized, less redundant outputs that improve ...
Yunheum Lee +13 more
wiley +1 more source
Autonomous Folding of Soft Matter From Living Polymers
Advanced Materials, EarlyView.Origami structures are endowed with “living” polymer creases that grow, remodel, and stiffen in response to nutrient solutions. This post‐fabrication growth enables autonomous folding, iterative regrowth, and mechanical tuning involving origami assemblies, such as cranes, Miura‐ori tessellations, rigid and non‐rigid square‐twist patterns, establishing ...
Jiahe Huang +6 more
wiley +1 more source
Kinematics and Dynamics of the Galactic Disc
, 2021 The Milky Way disc presents a warp, a flare, lopsidedness and other deviations from a purely axisymmetrical double exponential density component, both for the stellar and the gas component. Moreover, recent large-scale extended kinematics maps of Gaia data have shown significant departures from circularity in the mean orbits with radial Galactocentric ...
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How does the Mass Transport in Disk Galaxy Models Influence the Character of Orbits?
Open Astronomy, 2014 We explore the regular or chaotic nature of orbits of stars moving in the meridional (R, z) plane of an axially symmetric time-dependent disk galaxy model with a central, spherically symmetric nucleus. In particular, mass is linearly transported from the
Zotos Euaggelos E.
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Soft Skins With Reversible Thickness Morphing: Materials, Mechanisms, and Applications
Advanced Materials, EarlyView.Evolution of electronic skin (e‐skin) technologies toward adaptive, multifunctional soft skins. Phase I highlights early rigid and discrete sensory interfaces. Phase II shows the transition toward flexible, stretchable, and large‐area e‐skin. Phase III captures the emergence of computational e‐skin.
Oliver Ozioko +2 more
wiley +1 more source
On the Possibility of Applying the Quasi-Isothermal Stäckel’s Model to Our Galaxy
Open Astronomy, 2015 An earlier derived quasi-isothermal Stäckel’s model of mass distribution in stellar systems and the corresponding formula for space density are applied to our Galaxy. The model rotation curve is fitted to HI kinematical data.
Gromov A. O. +2 more
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Newtonian and modified newtonian gravitational simulation of spiral galaxies
Iraqi Journal of Physics, 2019 One of the most powerful tools for any stellar dynamics is the N-body simulation. In an N-body simulation the motion of N particles is followed under their mutual gravitational attraction.
Bushra A. Ahmed
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Modeling Kinematics and Dynamics of Human Arm Movements [PDF]
, 2020 A central problem in motor control relates to the coordination of the arm's many degrees of freedom. This problem concerns the many arm postures (kinematics) that correspond to the same hand position in space and the movement trajectories between ...
Stan C A M Gielen +2 more
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