Results 131 to 140 of about 2,303 (234)

Ultrahigh‐Order Harmonic Mode‐Locked Optoelectronic Oscillator

open access: yesLaser &Photonics Reviews, Volume 20, Issue 17, 3 September 2026.
This article demonstrates a record‐breaking microwave frequency comb generator using an ultrahigh‐harmonic‐order mode‐locked optoelectronic oscillator. By integrating dual recirculating loops into a low‐coherence system, the researchers achieved a harmonic order of 956 with superior noise suppression.
Zhuoran Wang   +3 more
wiley   +1 more source

Integrated LEO Constellation and In‐Cabin Distribution System for Continuous Aircraft 5G Connectivity

open access: yesInternational Journal of Satellite Communications and Networking, Volume 44, Issue 5, Page 594-606, September/October 2026.
ABSTRACT The integration of low Earth orbit (LEO) satellite constellations with commercial aircraft communication systems presents critical challenges in maintaining continuous connectivity during dynamic flight conditions. Current geostationary satellite systems suffer from high round‐trip latency ( > 500 ms) and inadequate coverage at high latitudes,
Raúl Parada   +4 more
wiley   +1 more source

Precisely Timed On‐Demand Droplet Ejection and Collision in Free Space for Controlled Reaction Initiation

open access: yesSmall, Volume 22, Issue 53, 21 September 2026.
LiDIA is an on‐demand droplet‐in‐air platform that enables synchronized droplet collision, ultralow‐waste operation, and obstruction‐free sample delivery. By combining precise triggering with reliable free‐space dispensing, it provides a versatile route for rapid mixing and time‐resolved studies, with strong potential for applications in XFEL, cryo‐EM,
Hao Deng   +2 more
wiley   +1 more source

Portable Radar for Noncontact Heart Rate Monitoring and Estrus Detection in Dairy Cows

open access: yesIEEJ Transactions on Electrical and Electronic Engineering, Volume 21, Issue 9, Page 1390-1403, September 2026.
This study introduces a portable radar system for real‐time monitoring of respiratory and heart rates in dairy cows. It uses millimeter‐wave Frequency Modulated Continuous Wave (FMCW) radar to perform noncontact physiological sensing, reducing behavioral disturbance. The radar system's design prioritizes portability, cost‐effectiveness, and robustness,
Yingxiu Li   +7 more
wiley   +1 more source

A new Landslide Investigation and Simulation Archive through downscaled landslide experiments. [PDF]

open access: yesSci Data
Longoni L   +6 more
europepmc   +1 more source

Discrete Boltzmann Modeling of Two‐Layer Shallow Water Flows

open access: yesWater Resources Research, Volume 62, Issue 9, September 2026.
Abstract Within the framework of discrete Boltzmann modeling (DBM), a two‐layer discrete Boltzmann model (D2Q16‐2) is proposed for the simulation of shallow water flows, aiming to overcome the limitations of conventional depth‐averaged models in representing layered flow structures and the reduced numerical stability of classical lattice Boltzmann ...
Yining Gao   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy