Results 41 to 50 of about 61,720 (230)
Layer‐Dependent Phonon Polaritons in hBN Resolved by Photo‐Induced Force Spectroscopy
Advanced Science, EarlyView.Layer‐dependent phonon polariton resonances in hexagonal boron nitride are systematically investigated using photo‐induced force microscopy. The in‐plane resonance exhibits a blueshift, while the out‐of‐plane resonance shows a redshift with increasing thickness. These results establish layer number as a key parameter for tuning polaritonic responses in
Amin Hajarian, Jiwoo Seo, SungWoo Nam
wiley +1 more source
Advanced Science, EarlyView.We have shown that both simulated and actual spaceflight contribute to cartilage degradation in the knees of mice. Using RNA sequencing and bioenergetic profiling, we identified NADPH oxidase 4 (NOX4) as a key factor driving these changes. Additionally, we found that kaempferol, a naturally occurring flavonoid that binds directly to NOX4, reduces ...
Yuesong Yin +23 more
wiley +1 more source
Advanced Science, EarlyView.Conceptual illustration of a Global Ecosystem Methane Observing System (GEM‐OS) integrating satellites, aircraft, atmospheric networks, and ecosystem measurements to quantify methane emissions from anthropogenic and natural sources. The multi‐scale observing framework improves source attribution, reduces uncertainty in regional methane budgets, and ...
P. Ciais +32 more
wiley +1 more source
Missione Esperia, un'avventura ai limiti del possibile
GEOmedia, 2007 Quando si tratta di raccontare le caratteristiche e lo svolgimento di una missione spaziale è particolarmente difficile catturarne il vero contesto senza dover spiegare retroscena, tecnologie e procedure che esulano così tanto dalla nostra esperienza ...
Fabrizio Bernardini
doaj
Leading the Pack: Next‐Generation Batteries for Humanoid Robotics
Advanced Science, EarlyView.Humanoid robots challenge traditional and anticipated energy technologies. Humanoid robot benchmarks of runtimes and energy demands for industry applications inform humanoid robot battery design choices at the cell level, pack level, and system level.
Matthew Bergschneider +6 more
wiley +1 more source
Anuario Colombiano de Historia Social y de la Cultura, 2015 En la historiografía nacional ha sido poco estudiado el tema de la consolidación de los pueblos de indios y el proceso de constitución de resguardos en regiones distintas al Nuevo Reino de Granada.
Marcela Quiroga Zuluaga
doaj +1 more source
A Robotic Testing Platform for Pipelined Discovery of Resilient Dielectric Elastomer Actuators
Advanced Science, EarlyView.This work introduces a robotic testing platform enabling high‐throughput, multi‐parameter lifetime mapping of linear dielectric elastomer actuators (DEAs). By integrating programmable high‐voltage control and automated electromechanical measurements, the system identifies material and operating conditions that double actuator lifetime.
Ang (Leo) Li +10 more
wiley +1 more source
NASA, Astropreneurs and future markets: new models of the U.S. innovation policy for space industry
Контуры глобальных трансформаций: политика, экономика, право, 2018 Article analyzes the changes in the space economy, as well as the U.S. federal policy for preserving American domination in this area. The evolution of the space economy in the United States is briefly considered, including formation of venture ...
I. V. DANILIN
doaj +1 more source
Bio‐Based Polyurethanes for Sustainable and Multifunctional Applications
Advanced Science, EarlyView.Bio‐based polyurethanes prepared from vegetable oils, lignin, and polysaccharides have attracted increasing interest as alternatives to fossil‐derived polyurethanes. This review summarizes recent progress in their chemistry, structural engineering, and advanced applications, highlighting the roles of feedstocks, chain‐segment design, dynamic covalent ...
Xin Li +6 more
wiley +1 more source
Beyond the Gold Standard: Towards Industrially Viable Electrodes for Durable Perovskite Solar Cells
Advanced Energy Materials, EarlyView.Transparent and opaque electrode materials are mapped by raw material cost per 1 m2 electrode area and retained median device efficiency after heat–light ageing. FTO offers a lower‐cost and more stable alternative to ITO, while Cr/Al provides the lowest‐cost rear electrode investigated with Au‐like stability and substantially improved durability ...
Tino Lukas +17 more
wiley +1 more source