Results 91 to 100 of about 167,032 (284)
Advanced Robotics Research, EarlyView.Permanent magnet putty (PMP) integrates high‐coercivity NdFeB particles with a dynamic polyborosiloxane–Ecoflex matrix, achieving rapid self‐healing (90% mechanical recovery in 10 s) and magnetic recovery within 20 min. With twice the sensitivity of commercial putties, PMP enables precise 5–30 N force detection and discrimination between pressing and ...
Ruotong Zhao +5 more
wiley +1 more source
Catastrophe theory classification of Fermi surface topological transitions in two dimensions
Physical Review Research, 2020 We classify all possible singularities in the electronic dispersion of two-dimensional systems that occur when the Fermi surface changes topology, using catastrophe theory.
Anirudh Chandrasekaran +3 more
doaj +1 more source
Catastrophe Theory and Caustics [PDF]
SIAM Review, 1983 In this paper it is shown by elementary methods that in codimension two and under the assumption that light rays are straight lines, a caustic is the catastrophe set for a timefunction. The general case is also discussed.
openaire +1 more source
Determinants of Participation in a Catastrophe Insurance Programme: Empirical Evidence from a Developing Country [PDF]
The paper presents empirical evidence of the determinants of catastrophe insurance participation in one of the poorest and most disaster prone countries in the world.
Akter, Sonia +3 more
core +1 more source
Origami‐Inspired Structural Design for Aquatic‐Terrestrial Amphibious Robots
Advanced Robotics Research, EarlyView.This work presents a lightweight amphibious origami robot actuated by a single shape memory alloy wire. A rigid foldable origami structure with displacement amplification enables efficient terrestrial crawling and aquatic swimming. The addition of fan‐shaped units allows controllable turning in both environments.
Weiqi Liu +5 more
wiley +1 more source
A catastrophic approach to designing interacting hysterons
New Journal of PhysicsWe present a framework for analyzing collections of interacting hysterons through the lens of catastrophe theory. By modeling hysteron dynamics as a gradient system, we show how to construct hysteron transition graphs by characterizing the fold ...
Gentian Muhaxheri +2 more
doaj +1 more source
NFS1 Regulates IDH2 to Attenuate Abdominal Aortic Aneurysms via Interacting With SP2
Advanced Science, EarlyView.The loss of NFS1 leads to its reduced binding with the transcription factor SP2, resulting in decreased expression of the downstream gene Idh2. This causes a shift in energy supply toward glycolysis in VSMCs, ultimately contributing to the occurrence and progression of AAA.
Luzheng Zhang +9 more
wiley +1 more source
Chemical Kinetics and Catastrophe Theory [PDF]
, 1975 In this paper a continuous stirred tank reactor (CSTR) model of a first-order, exothermic reaction is examined and the existence of a cusp catastrophe is shown. Analytical solutions are developed for the ignition and quenching boundaries.
Blum, E.H., Mehra, R.K.
core
``X-Ray Edge'' Singularities in Nanotubes and Quantum Wires with Multiple Subbands
, 1999 Band theory predicts an inverse square root van Hove singularity in the tunneling density of states at the minimum energy of an unoccupied subband in a one-dimensional quantum wire.
A. Yacoby +12 more
core +1 more source
Modifying Glucose Metabolism Reverses Memory Defects of Alzheimer's Disease Model at Late Stages
Advanced Science, EarlyView.Using spatial transcriptomics, we show that ferul enanthate (SL‐ZF‐01) reverses episodic‐like memory deficits in aged, but not young, Alzheimer’s disease (AD) mice. SL restores glucose metabolism and Glucose Transporter 1/3 expression via an ‘Aging‐AD‐Rescue’ pattern, rescuing deficits seen in aged AD mice.
Fang Liu +14 more
wiley +1 more source