Results 111 to 120 of about 840,116 (317)

Bio‐Inspired Stored Magnetic Energy Actuator with Transient Triggering and Programmable Logic

Advanced Science, EarlyView.
A bio‐inspired magnetic energy actuator achieves 1.6 m/s transient release—three orders faster than conventional systems—via direct ink writing printed NdFeB/Polydimethylsiloxane composites and environmental locks; biomimetic AND‐gate logic enables sequential cue recognition (e.g., “temperature → rainfall”).
Chao Xu, Shuo Jiang, Lu Zhang, Xueli Zhou, Qingping Liu, Luquan Ren   +5 more
wiley   +1 more source

FIXED-POINT THEOREMS FOR NONCOMPACT MAPPINGS IN HILBERT SPACE [PDF]

, 1965
Felix E. Browder
openalex   +1 more source

Chemically‐Disordered Transparent Conductive Perovskites With High Crystalline Fidelity

Advanced Science, EarlyView.
Kinetically arrested, chemically disordered perovskite thin films exhibit exquisite crystalline fidelity, broad IR–UV transparency, and low resistivity, despite incorporating five mismatched 3d–5d cations, including Cr and W. This study unites electronic correlation, cation diversity, valence complexity, and disorder—enabling new transparent conductors
Saeed S. I. Almishal, Pat Kezer, Jacob T. Sivak, Yasuyuki Iwabuchi, Sai Venkata Gayathri Ayyagari, Saugata Sarker, Matthew Furst, Gerald Bejger, Billy Yang, Simon Gelin, Nasim Alem, Ismaila Dabo, Christina M. Rost, Susan B. Sinnott, Vincent Crespi, Venkatraman Gopalan, Roman Engel‐Herbert, John T. Heron, Jon‐Paul Maria   +18 more
wiley   +1 more source

Unambiguous Quantum State Discrimination in a PT$\mathcal {PT}$‐Symmetric System of a Single Trapped Ion

Advanced Science, EarlyView.
An unambiguous quantum state discrimination for two nonorthogonal states is demonstrated using a single ion. By implementing a non‐Hermitian Hamiltonian with parity‐time‐reversal (PT) symmetry, two candidate states evolve with different speed and become orthogonal at specific time, hence can be discriminated unambiguously. Experiments are performed for
Chenhao Zhu, Tingting Shi, Liangyu Ding, Zhiyue Zheng, Xiang Zhang, Wei Zhang   +5 more
wiley   +1 more source

A fixed point theorem of the alternative, for contractions on a generalized complete metric space [PDF]

, 1968
J. B. Díaz, Beatriz Margolis
openalex   +1 more source

Deep Learning‐Powered Nanoplasmonic Biosensing Approach Enables Ultrasensitive Extracellular Vesicles Profiling for Cancer Screening

Advanced Science, EarlyView.
This study presents a Kolmogorov–Arnold network (KAN)‐powered nanoplasmonic biosensing platform for ultrasensitive detection of small extracellular vesicles in serum, enabling highly accurate pancreatic cancer screening. The method achieves an area under the curve (AUC) of 0.99 in a large clinical cohort, offering a robust and interpretable deep ...
Jiaheng Zhu, Yingqi Xiao, Xinyue Huang, Qiang Niu, Lihuang Zeng, Shaowei Lin, Mengqi Jiang, Tianhao Huang, Hanyang Chen, Yinong Xie, Yuan Gao, Wei Chen, Yiming Yan, Jiaqing Shen, Kaibin Chen, Yurong Dai, Zhipeng Zhang, Lijun Zeng, Yahong Chen, Boan Li, Jinfeng Zhu, Bo Li   +21 more
wiley   +1 more source

Krasnosel'skii fixed point theorem for dissipative operators

Electronic Journal of Differential Equations, 2011
In this note, a sufficient condition guaranteing the existence of fixed points in a nonempty, closed convex K for T+S is given, where $T:Ksubset Eo E$ is dissipative and $S:Ko E$ is condensing.
Tian Xiang
doaj  

Fixed-point theorems for compact convex sets [PDF]

, 1961
Mahlon M. Day
openalex   +1 more source

Design Principles for Deployable Fibers Inspired by Hagfish Defense

Advanced Science, EarlyView.
Hagfish slime deploys fibers from coiled skeins to form an ultra‐dilute, water‐trapping network. Inspired by this mechanism, design principles are established for synthetic skeins, fabricated with tightly coiled fibers that unravel under flow. These synthetic skeins demonstrate deployable fibrous networks, highlighting generalizable strategies for ...
Mohammad Tanver Hossain, Wonsik Eom, Pallab Layak, Jeongmin Kim, Carolyn Darling, Andrew Lowe, Douglas S. Fudge, Sameh H. Tawfick, Randy H. Ewoldt   +8 more
wiley   +1 more source

On a generalized Krasnoselskii fixed point theorem

Open Mathematics
This study concerns a Krasnoselskii-type fixed point theorem for the sum of two operators A,BA,B in a Banach space EE, where BB is a Reich-type contractive mapping and AA is a k-set contractive mapping.
Pham Hien Van
doaj   +1 more source