Results 151 to 160 of about 295,900 (371)
Advanced Functional Materials, EarlyView.A π‐bridge engineering strategy enhances intramolecular charge transfer, enabling non‐fullerene acceptors to extend near‐infrared absorption beyond 1200 nm. The resulting organic photodiodes exhibit high detectivity and fast response. These high‐performance devices demonstrate practical potential in photoplethysmography and optical wireless ...
Meng Qiang Li +7 more
wiley +1 more source
Morphological evolution in situ: Disk-dominated cluster red sequences at z ~ 1.25
, 2015 We have carried out a joint photometric and structural analysis of red sequence galaxies in four clusters at a mean redshift of z ~ 1.25 using optical and near-IR HST imaging reaching to at least 3 magnitudes fainter than $M^*$.
Bremer, M. N. +2 more
core +1 more source
Non-Doppler Redshift and Redshifts of QSOs
, 2013 Quasars have reigned as the most luminous and distant objects in the Universe. These concepts were based on the hypothesis that the redshifts of quasars are obeying the Hubble low. This hypothesis has little serious competition today, but has met some difficulties when using it to determine the distances of quasars.
openaire +2 more sources
Design and Applications of Multi‐Frequency Programmable Metamaterials for Adaptive Stealth
Advanced Functional Materials, EarlyView.This article provides a comprehensive overview of metamaterials, including their fundamental principles, properties, synthesis techniques, and applications in stealth, as well as their challenges and future prospects. It covers topics that are more advanced than those typically discussed in existing review articles, while still being closely connected ...
Jonathan Tersur Orasugh +4 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Garnet‐like luminescence upon Ce3+‐activation is found in the first six representatives Li9RESi4N4O8 (RE = Y, La, Gd, Dy, Yb, Lu) of the substance class of lithium rare‐earth oxonitridolithosilicates, which also show a novel structure type. High‐temperature solid‐state synthesis yielded crystalline samples for single‐crystal X‐ray diffraction‐based ...
Kilian M. Rießbeck +5 more
wiley +1 more source
Semiconducting Polymer Nanoparticles as Multimodal Agents for Optical and Magnetic Resonance Imaging
Advanced Healthcare Materials, EarlyView.Semiconducting polymer nanoparticles (SPNs) exhibit many advantageous optical and biological properties. Multimodal SPN‐based contrast agents that integrate several imaging modalities yield a wealth of information through the use of different imaging mechanisms.
Faysal A. Farah +3 more
wiley +1 more source
Observations Favor the Redshift-evolutionary L X–L UV Relation of Quasars from Copula
The Astrophysical JournalWe compare, with data from quasars, Hubble parameter measurements, and Pantheon+ type Ia supernova, three different relations between X-ray luminosity ( L _X ) and ultraviolet luminosity ( L _UV ) of quasars. These three relations consist of the standard
Bao Wang, Yang Liu, Hongwei Yu, Puxun Wu
doaj +1 more source
An Empirical Consistent Redshift Bias: A Possible Direct Observation of Zwicky’s TL Theory
ParticlesRecent advancements have shown tensions between observations and our current understanding of the Universe. Such observations may include the H0 tension and massive galaxies at high redshift that are older than traditional galaxy formation models have ...
Lior Shamir
doaj +1 more source
Advanced Healthcare Materials, EarlyView.This study presents alkylated nitrobenzoselenadiazole (NBSD) photosensitizers that self‐assemble into programmable aggregates, enabling photo‐triggered pyroptosis and enhanced ROS generation. The lead compound, NBSD‐NOc, exhibits superior photodynamic activity, high cellular uptake, and implantable gel compatibility with pH‐responsive release.
Jong Min An +8 more
wiley +1 more source
The Astrophysical JournalQuasars could serve as standard candles if the relation between their ultraviolet (UV) and X-ray luminosities can be accurately calibrated. Previously, we developed a model-independent method to calibrate quasar standard candles using the distance ...
Xiaolei Li +2 more
doaj +1 more source