Results 151 to 160 of about 194,477 (284)

Zero‐Waste Manufacturing of Ophthalmic Lenses by Direct Fluidic Shaping in Arbitrary Domains

Advanced Materials Technologies, EarlyView.
Conventional ophthalmic lens manufacturing discards up to 97% of material through subtractive processes. The Cookie Cutter algorithm extends Fluidic Shaping to arbitrary rim geometries. The framework prescribes a spatially varying boundary height that, under neutral buoyancy and surface tension, shapes curable polymer into spherocylindrical lenses that
Yotam Katzman, Mor Elgarisi, Amos A. Hari, Jonathan Ericson, Omer Luria, Valeri Frumkin, Moran Bercovici   +6 more
wiley   +1 more source

Spatial Stiffness Programming in Single‐Filament Material Extrusion Through Data‐Driven Thermal Foaming

Advanced Materials Technologies, EarlyView.
Single‐filament material extrusion enables spatial stiffness programming through locally controlled thermal foaming of TPU. A data‐driven G‐code framework tunes porosity from 15.7% to 40.7% and hardness from 90 to 63 Shore A within and across layers. Monolithic hands and soft actuators consequently achieve distinct programmed motions without material ...
Rosanna Rifino, Gianni Stano, Mahdi Bodaghi, Gianluca Percoco   +3 more
wiley   +1 more source

Retraction Note: Predicting the spread of COVID-19 with a machine learning technique and multiplicative calculus. [PDF]

Soft comput
Bilgehan B, Özyapıcı A, Hammouch Z, Gurefe Y.   +3 more
europepmc   +1 more source

Lambek calculus is NP-complete

, 2003
We prove that for both the Lambek calculus L and the Lambek calculus allowing empty premises L ∗ the derivability problem is NP-complete. It follows that also for the multiplicative fragments of cyclic linear logic and noncommutative linear logic the ...
Mati Pentus
core  

Two‐Dimensional Isotropic Spatial Differentiation Through Complete Polarization Control

Advanced Optical Materials, EarlyView.
This work enables two‐dimensional isotropic spatial differentiation at planar interfaces over a wide range of incident angles by extending the output polarization from linear to elliptical. The choice of incident angle can be used to balance broader spectral response at low angles and higher edge‐detection efficiency at larger angles.
Doyoon Lee, Minkyung Kim
wiley   +1 more source

Large‐Area Flat Optics Color Routing in Tilted Arrays of 2D Semiconductor Nanostripes

Advanced Optical Materials, EarlyView.
We develop a scalable flat optics platform exploiting self‐organised ion‐beam sputtering and maskless glancing‐angle deposition to fabricate centimetre‐scale arrays of tilted MoS2 nanostripes. The engineered geometry activates Rayleigh anomalies, guided modes, and Mie resonances, enabling highly directional color routing and enhanced light harvesting ...
Simone Di Marco, Daniele Ceneda, Matteo Barelli, Matteo Gardella, Rajesh Chennuboina, Maria C. Giordano, Marco Centini, Francesco Buatier de Mongeot   +7 more
wiley   +1 more source

On the Theory of Multiplicative Conformable Fractional Integrals and Their Applications to Hermite-Hadamard and Maclaurin-Type Inequalities

This paper introduces multiplicative conformable fractional integrals within the setting of [Formula: see text]-calculus, a non-Newtonian framework naturally suited for positive functions with positive arguments.
Manar A. Alqudah, Yakub Yildirim, Abdelghani Lakhdari, Thabet Abdeljawad, Fahd Jarad   +4 more
core   +1 more source

Aberrations‐Corrected Ratiometric Parameters and PLQYs for Upconversion Thermometry in Hexagonal NaYF4:Yb3+,Er3+ and NaYF4:Yb3+,Tm3+ in Micro and Nanoscale Phosphors Using Novel Integrating Sphere Setup

Advanced Optical Materials, EarlyView.
Each optical system introduces aberrations in the reading of photoluminescence, which makes the signal dependant on the lab equipment. Here, a calibrated system is used to obtain the PLQYs and ratiometric parameters of popular upconverters to be used in thermometry.
Adilet Zhakeyev, Feng Li, Daniel Biner, Karl W. Krämer, Guanying Chen, Jose Marques‐Hueso   +5 more
wiley   +1 more source

Siphon Calculus and Lyapunov Functions for Generalized Lotka-Volterra Systems: A Reaction Networks Perspective. [PDF]

Entropy (Basel)
Avram F.
europepmc   +1 more source

TiO2 as Trap Sensitizer for Enhanced Persistent Luminescence in ZnGa2O4:Cr3+ Nanoparticles

Advanced Optical Materials, EarlyView.
Interfacial engineering enables non‐optical charging enhancement in persistent phosphors. By coupling ZGO:Cr nanoparticles with TiO2 through a porous SiO2 interlayer, photogenerated carriers are efficiently transferred and stored in additional trapping states.
Manuel Romero, Victor Castaing, Kassiogé Dembélé, Diana Serrano, Alexandre Tallaire, Gabriel Lozano, Hernán Míguez   +6 more
wiley   +1 more source