Results 241 to 250 of about 157,678 (311)

New Representations of Catalan's Constant, Apery's Constant and the Euler Numbers Obtained from the Half Hyperbolic Secant Distribution [PDF]

Emilio Gómez–Déniz, José Marı́a Sarabia   +1 more
openalex   +1 more source

Multi‐Channel Electrically Tunable Varifocal Metalens With Compact Multilayer Polarization‐Dependent Metasurfaces and Liquid Crystals

Advanced Science, EarlyView.
A compact eight‐channel electrically tunable varifocal metalens with three single‐layer polarization‐multiplexed bi‐focal metalens and three LC cells. The total thickness of the device is ∼6 mm, while the focal lengths can be switched among eight values (3.6, 4.2, 4.5, 4.9, 6.2, 6.9, 8.4, and 9.6 mm). ABSTRACT As an essential module of optical systems,
Zhiyao Ma, Yize Liu, Zhe Li, Tian Tian, Yuxuan Liao, Xue Feng, Yongzhuo Li, Kaiyu Cui, Fang Liu, Hao Sun, Wei Zhang, Yidong Huang   +11 more
wiley   +1 more source

Complex soliton wave patterns of Gross-Pitaevskii systems: application in quantum and optical engineering. [PDF]

Sci Rep
Bilal M, Alawaideh YM, Rehman SU, Popa IL, Al-Khamiseh BM, Ghannam H.   +5 more
europepmc   +1 more source

Separability, estimates for eigenvalues and singular numbers (s-numbers) of a class of hyperbolic type differential operators [PDF]

М.B. Muratbekov, Madi Muratbekov
openalex   +1 more source

Physics‐Constrained Constitutive Learning of Rate‐Limiting Timescales for Efficient Hydrogen‐Based Direct Reduction for Green Steel Making

Advanced Science, EarlyView.
A conversion‐resolved constitutive framework is developed for the hydrogen‐based direct reduction of iron oxide pellets. Effective reaction and transport timescales are inferred directly from measured trajectories and mapped against operating conditions, pellet architecture, and composition. The analysis reveals how late‐stage transport control emerges
Anurag Bajpai, Barak Ratzker, Pasquale Cavaliere, Dierk Raabe   +3 more
wiley   +1 more source

Ultrabroadband Spacetime Nanoscopy of Terahertz Polaritons in a van der Waals Cavity. [PDF]

Small
Wehmeier L, Xu S, Chen X, Yu SJ, Lin Y, Dai Z, Wang H, Yao H, Hu J, Homes CC, Janzen E, Edgar JH, Zheng X, Heinz TF, Fan JA, Basov DN, Carr GL, Liu M.   +17 more
europepmc   +1 more source

A Worm‐Inspired Origami Robot with Multimodal Locomotion for Adaptive Mobility in Complex Pipeline Environments

Advanced Science, EarlyView.
An origami worm‐inspired robot achieves multimodal locomotion in confined pipelines through mechatronic integration that embeds actuation, control, and communication within each origami module. Large, reversible configuration and dimensional changes enable 25 gaits synthesized by a unified framework across peristaltic, inchworm, and wheel‐rolling modes
Qiwei Zhang, Kangning Tan, Zihan He, Hongsen Pang, Yanjie Wang, Hongbin Fang, Jian Xu   +6 more
wiley   +1 more source

Unitary Entities Are the True "Atoms". [PDF]

Entropy (Basel)
Jeynes C, Parker MC.
europepmc   +1 more source

Enhancing Electrical Impedance Based Deformation Sensing with Dielectric Current Guide

Advanced Electronic Materials, EarlyView.
This work introduces a dielectric‐based field manipulation strategy for electrical impedance tomography in soft robotics. By using silicone as a passive electric field guide, improved deformation sensing accuracy and reduced interference are achieved without embedding conductive components.
Arsen Abdulali, David Hardman, Yue Xie, Fumiya Iida   +3 more
wiley   +1 more source

Monopole-mediated light control of half skyrmion topology in nematic liquid crystals. [PDF]

Nat Commun
Asilehan Z, Tang W, Zheng X, Wang R, Zhang J, Tian K, Vergara F, Shi Q, Chen Z, Jiang J, Zhang R, Peng C.   +11 more
europepmc   +1 more source