Results 101 to 110 of about 196,550 (300)
Development of Heat Engines Powered by Twisted and Coiled Polymer Fiber Actuators
Advanced Materials Technologies, EarlyView.Continuously rotating engines driven by thermally responsive actuating materials can turn waste heat into useful energy. For the first time heat engines operated by twisted and coiled polymer fiber actuators are demonstrated with engine design guided by two simple analytical models.
Geoffrey M. Spinks +2 more
wiley +1 more source
Lefschetz formula for nonlocal elliptic problems associated with fibration
Современная математика: Фундаментальные направленияElliptic operator complexes associated with fibration are considered. The Atiyah-Bott-Lefschetz formula for endomorphisms of such complexes is given. The proof is based on the stationary phase method.
N. R. Orlova
doaj +1 more source
Advanced Materials Technologies, EarlyView.This work presents a fully synthetic, 3D‐printed dynamic heart model with left‐side anatomy featuring sutured mitral valve chordae tendineae analogs, embedded actuators for physiologic wall contraction, and customized flexible pressure sensors for the left ventricle.
Alejandro Guillen Obando +7 more
wiley +1 more source
Semistable degenerations of Calabi–Yau manifolds and mirror P=W conjectures
Forum of Mathematics, SigmaMirror symmetry for a semistable degeneration of a Calabi–Yau manifold was first investigated by Doran–Harder–Thompson when the degenerate fiber is a union of two quasi-Fano manifolds.
Sukjoo Lee
doaj +1 more source
Beyond Brown: Lignin's Emerging Role in Structural Color
Advanced Optical Materials, EarlyView.Lignin, long regarded as a brown industrial byproduct, is emerging as a sustainable platform for structural color. This Perspective highlights how lignin's refractive index, intrinsic absorption, and nanoscale assembly enable tunable photonic responses in colloidal and thin‐film architectures, and outlines design strategies to advance scalable, bio ...
Ravi Shanker, Anna Justina Svagan
wiley +1 more source
Advanced Robotics Research, EarlyView.Embedded flexible sensing technologies advance underwater soft robotics, yet most systems still suffer from hysteresis and limited perceptiveness. Instead, vision‐based tactile sensors provide reliable and rapid feedback essential for complex underwater tasks.
Qiyi Zhang +5 more
wiley +1 more source
Lefschetz fibrations, intersection numbers, and representations of the framed braid group [PDF]
, 2007 Gwénaël Massuyeau +2 more
openalex +1 more source
Advanced Robotics Research, EarlyView.Here, we present a textile, wearable capacitive interface enabling multidirectional remote control by dynamically modulating electrode overlap and spacing via a freely gliding upper electrode. A forearm‐mounted prototype drives robotic and media tasks with 12–15 ms latency, maintains < 0.8% drift after 500 cycles, and remains stably functional at 90 ...
Cagatay Gumus +8 more
wiley +1 more source
F-theory with hyperelliptic fibrations
Journal of High Energy PhysicsWe discuss the role of hyperelliptic fibrations in F-theory. For each even integer n we give a noncompact Calabi-Yau threefold X containing a hyperelliptically fibered surface Y, such that X and Y are homotopy equivalent and c 2(X) = n.
E. Ballico +3 more
doaj +1 more source