Results 31 to 40 of about 631,257 (354)
Interpretation of saddle-splay and the Oseen-Frank free energy in liquid crystals [PDF]
Liquid Crystals Reviews, 2018 This article re-examines a classic question in liquid-crystal physics: What are the elastic modes of a nematic liquid crystal? The analysis uses a recent mathematical construction, which breaks the director gradient tensor into four distinct types of ...
Jonathan V Selinger
semanticscholar +1 more source
Early warning signs for saddle-escape transitions in complex networks [PDF]
, 2015 Many real world systems are at risk of undergoing critical transitions, leading to sudden qualitative and sometimes irreversible regime shifts. The development of early warning signals is recognized as a major challenge.
Gross, Thilo +2 more
core +5 more sources
Distributed Learning in Non-Convex Environments— Part II: Polynomial Escape From Saddle-Points [PDF]
IEEE Transactions on Signal Processing, 2019 The diffusion strategy for distributed learning from streaming data employs local stochastic gradient updates along with exchange of iterates over neighborhoods.
Stefan Vlaski, A. H. Sayed
semanticscholar +1 more source
The saddle-straddle method to test for Wada basins
, 2020 First conceived as a topological construction, Wada basins abound in dynamical systems. Basins of attraction showing the Wada property possess the particular feature that any small perturbation of an initial condition lying on the boundary can lead the ...
Daza, Alvar +2 more
core +1 more source
Influence of functional rider and horse asymmetries on saddle force distribution during stance and in sitting trot [PDF]
, 2019 Asymmetric forces exerted on the horse's back during riding are assumed to have a negative effect on rider–horse interaction, athletic performance, and health of the horse.
Arpagaus, Samuel +8 more
core +3 more sources
Saddle Pressures Factors in Road and Off-Road Cyclists of Both Genders: A Narrative Review
Journal of Functional Morphology and Kinesiology, 2023 The contact point of the pelvis with the saddle of the bicycle could generate abnormal pressure, which could lead to injuries to the perineum in cyclists.
Domenico Savio Salvatore Vicari +6 more
doaj +1 more source
A Computational Procedure to Detect a New Type of High Dimensional Chaotic Saddle and its Application to the 3-D Hill's Problem [PDF]
, 2004 A computational procedure that allows the detection of a new type of high-dimensional chaotic saddle in Hamiltonian systems with three degrees of freedom is presented.
+17 more
core +4 more sources
Journal of NeuroEngineering and Rehabilitation, 2021 Introduction After a stroke, a wide range of deficits can occur with varying onset latencies. As a result, assessing impairment and recovery are enormous challenges in neurorehabilitation. Although several clinical scales are generally accepted, they are
Belén Rubio Ballester +4 more
doaj +1 more source
On the Integrability of Liénard systems with a strong saddle [PDF]
, 2017 We study the local analytic integrability for real Li\'{e}nard systems, $\dot x=y-F(x),$ $\dot y= x$, with $F(0)=0$ but $F'(0)\ne0,$ which implies that it has a strong saddle at the origin.
Giné, Jaume, Llibre, Jaume
core +4 more sources