Results 221 to 230 of about 250,786 (296)

Metasurfaces with Phase-Change Materials for Mid-Wave Infrared Thermal Management. [PDF]

Micromachines (Basel)
Babicheva VE, Kim H, Piqué A.
europepmc   +1 more source

AI‐Assisted IoT‐Enabled ECG Monitoring: Integrating Foundational and Generative AI Tools for Sustainable Smart Healthcare—Recent Trends

AI &Innovation, EarlyView.
ABSTRACT The rapid evolution of the Internet of Things (IoT) has significantly advanced the field of electrocardiogram (ECG) monitoring, enabling real‐time, remote, and patient‐centric cardiac care. This paper presents a comprehensive survey of AI assisted IoT‐based ECG monitoring systems, focusing on the integration of emerging technologies such as ...
Amrita Choudhury, Kandarpa Kumar Sarma, Lachit Dutta   +2 more
wiley   +1 more source

On-chip, inverse-designed active wavelength division multiplexer at THz frequencies. [PDF]

Nat Commun
Digiorgio V, Senica U, Micheletti P, Beck M, Faist J, Scalari G.   +5 more
europepmc   +1 more source

A miniaturized wireless and passive antenna sensor with meandering structure for integrated multi-directional strain and temperature sensing. [PDF]

Microsyst Nanoeng
Guo L, Dong H, Liang S, Tian X, Fu H, Dong T, Guo L, Wu D, Tan Q.   +8 more
europepmc   +1 more source

Mechanistic Diversity in Photoexcited Radical Redox Chemistry: A Critical Evaluation

Angewandte Chemie International Edition, EarlyView.
Many high‐profile examples of photoredox catalysis are proposed to proceed via excitation of an open‐shell intermediate form of the catalyst. However, there is much debate over whether such mechanisms are realistic and, if so, exactly how they can occur.
Samuel J. Horsewill, Ryan Phelps, Joshua P. Barham, Daniel J. Scott   +3 more
wiley   +1 more source

A Compact Aperture-Slot Antipodal Vivaldi Antenna for GPR Systems. [PDF]

Sensors (Basel)
Shen F, Yang N, Xia C, Wan T, Kang J.
europepmc   +1 more source

Photonic Terahertz for 6G Communication. [PDF]

Sensors (Basel)
Yu J, Zhou Y.
europepmc   +1 more source

Color‐Center‐Driven Inorganic Photochromic Materials: Mechanisms, Classifications and Property Modulation

Advanced Physics Research, EarlyView.
This review explores color‐center‐mediated photochromism in inorganic materials and elaborates on defect‐originated photochromic fundamentals. It categorizes typical material systems by three core color‐center sources, including oxygen vacancies, non‐oxygen anion‐related defects, and cation‐related defects and summarizes feasible defect engineering ...
Jingxuan Zhang, Jiaren Du, Hengwei Lin, Dirk Poelman   +3 more
wiley   +1 more source

Developing and examining a compact dual band circularly polarized ultra-wideband antenna covering C-band and X-band applications. [PDF]

Sci Rep
Kolusu D, Nanda S.
europepmc   +1 more source

Computational fluid dynamics simulations of airflow through the nasal passages of rhinolophoid bats

The Anatomical Record, EarlyView.
Abstract The nasal passages of bats that emit their echolocation call through their nostrils have adapted for sound emission as well as standard respiratory and olfactory functions. Rhinolophids, hipposiderids and rhinonycterids all use a high duty cycle (HDC) echolocation strategy.
Carley Goodwin, Jason M. Bourke, Daisuke Koyabu, Kyle N. Armstrong, Vuong T. Tu, Thongchai Ngamprasertwong, Thanakul Wannaprasert, Laura A. B. Wilson   +7 more
wiley   +1 more source