Results 31 to 40 of about 118,109 (263)

Shape programming lines of concentrated Gaussian curvature [PDF]

open access: yesJournal of Applied Physics, 2021
Liquid crystal elastomers (LCEs) can undergo large reversible contractions along their nematic director upon heating or illumination. A spatially patterned director within a flat LCE sheet, thus, encodes a pattern of contraction on heating, which can morph the sheet into a curved shell, akin to how a pattern of growth sculpts a developing organism ...
Duffy, D   +9 more
openaire   +3 more sources

Determining Tarsus Curvature in Relation To Direction of Gaze Using Non-contact Ultrasound Video Assistance

open access: yesUltrasound International Open, 2016
Purpose: Plastic surgery on the eyelids for the purpose of aesthetic or functional correction requires precise knowledge of lid anatomy. Changes in the tarsal curvature of the upper eyelid relative to line of vision are important, particularly when a ...
T. Schrom, R. Amberg, F. Bast
doaj   +1 more source

A Study on the Prediction Model of the Radius of Curvature of the Subtle Feature of the Automotive Parts for Different Forming Conditions [PDF]

open access: yes한국정밀공학회지, 2023
The subtle feature is one of the characteristic lines and represents the most noticeable line in the automotive panel. In this study, we proposed a method to predict the radius of curvature of products according to the material, its thickness, its punch ...
Jae-Hyeong Yu   +3 more
doaj   +1 more source

Combined hydrodynamic and control analysis on optimal kinematic parameters for bio-inspired autonomous underwater vehicle manoeuvring

open access: yesFrontiers in Physics, 2023
To investigate the manoeuvring performance of a body-caudal fin robot fish, a numerical framework combining computational fluid dynamics and multi-body dynamics with a closed-loop control algorithm was established in this study. Within this framework, we
Marvin Wright, Qing Xiao, Qiang Zhu
doaj   +1 more source

Curvature of the chiral pseudocritical line in QCD [PDF]

open access: yesPhysical Review D, 2014
We determine the curvature of the pseudo-critical line of strong interactions by means of numerical simulations at imaginary chemical potentials. We consider $N_f=2+1$ stout improved staggered fermions with physical quark masses and the tree level Symanzik gauge action, and explore two different sets of lattice spacings, corresponding to temporal ...
BONATI, CLAUDIO   +5 more
openaire   +3 more sources

Cartographic Line Generalization Based on Radius of Curvature Analysis

open access: yesISPRS International Journal of Geo-Information, 2018
Cartographic generalization is one of the important processes of transforming the content of both analogue and digital maps. The process of reducing details on the map has to be conducted in a planned way in each case when the map scale is to be reduced.
Bogdan Kolanowski   +2 more
doaj   +1 more source

Splitting the curvature of the determinant line bundle [PDF]

open access: yesProceedings of the American Mathematical Society, 1999
It is shown that the determinant line bundle associated to a family of Dirac operators over a closed partitioned manifold has a canonical Hermitian metric with compatible connection whose curvature satisfies an additivity formula with contributions from the families of Dirac operators over the two halves. This curvature form is the natural differential
openaire   +3 more sources

Real-Time Curvature Measurement Sensor for Active Steering of Railroad Vehicles [PDF]

open access: yes한국정밀공학회지, 2019
Conventional railroad vehicles, that run on a line with high frequency of sharp curves, have problems such as wheel noise and wear, from insufficient passive steering.
Dahoon Ahn, Hyunmoo Hur, Yujeong Shin
doaj   +1 more source

Berry curvature associated to Fermi arcs in continuum and lattice Weyl systems

open access: yesPhysical Review Research, 2023
Recently it has been discovered that in Weyl semimetals the surface state Berry curvature can diverge in certain regions of momentum. This occurs in a continuum description of tilted Weyl cones, which for a slab geometry results in the Berry curvature ...
Dennis Wawrzik, Jeroen van den Brink
doaj   +1 more source

A New Approach to Rotational Weingarten Surfaces

open access: yesMathematics, 2022
Weingarten surfaces are those whose principal curvatures satisfy a functional relation, whose set of solutions is called the curvature diagram or the W-diagram of the surface.
Paula Carretero, Ildefonso Castro
doaj   +1 more source

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