Results 131 to 140 of about 323,885 (290)

Non‐Covalent PL, CD, and CPL Activation of Linear Aromatic Oligomers within Axially Chiral Aromatic Capsules

open access: yesAngewandte Chemie, EarlyView.
Linear aromatic oligomers display intense photoluminescence (PL), circular dichroism (CD), and circularly polarized luminescence (CPL) properties upon non‐covalent encapsulation by axially‐chiral aromatic capsules under ambient aqueous conditions.
Yoshihisa Hashimoto   +4 more
wiley   +2 more sources

(Table 5) Luminescence-dating of sediment core 94-BC17 of the Arctic Ocean

open access: yes, 2007
(Table 5) Luminescence-dating of sediment core 94-BC17 of the Arctic ...
Glenn W Berger (6976814)   +1 more
core   +1 more source

Machine‐Learning‐Assisted Onset‐Time Determination in Transient Luminescence Thermometry

open access: yesAdvanced Intelligent Discovery, EarlyView.
Artificial neural networks enable autonomous extraction of onset times from transient heating curves in luminescence thermometry. Using Ln3+‐doped upconverting nanoparticles as luminescent thermometers, we combine experimental transients with physically motivated synthetic curves to enhance data diversity and improve generalization.
David J. Sousa   +3 more
wiley   +1 more source

Borosulfates Hosting Se42+ Ions—Crystal Structures, Chemical Bonding, Optical Spectroscopy, and Magnetism

open access: yesAngewandte Chemie, EarlyView.
Apart from (transition) metal (oxo)halides only few hosts stabilize chalcogenide cations in purely oxoanionic coordination environment. Herein, we report on five borosulfates containing the Se42+ ion and characterize the compounds using X‐ray diffraction, diffuse reflectance spectroscopy, density functional theory (DFT) calculations along with magnetic
Erich Turgunbajew   +11 more
wiley   +2 more sources

(Table 5) Luminescence-dating of sediment core 88-GGC23 of the Arctic Ocean

open access: yes, 2007
(Table 5) Luminescence-dating of sediment core 88-GGC23 of the Arctic ...
Glenn W Berger (6976814)   +1 more
core   +1 more source

From Data to Discovery: Machine Learning–Enabled Intelligent Characterization of Two‐Dimensional Materials

open access: yesAdvanced Intelligent Discovery, EarlyView.
Machine learning serves as a central engine for the intelligent characterization of two‐dimensional materials by integrating multimodal techniques, including optical microscopy, spectroscopy, electron microscopy, and scanning probe microscopy (SPM). This unified framework enables automated, high‐throughput, and quantitative extraction of structural ...
Zhi‐Long Cao, Jia‐Xu Yan
wiley   +1 more source

Engineering Atomically Precise Cu4I4 Nanoclusters With Integrated Adsorption and Hydrogenation Functions for Efficient Photocatalytic Nitrate‐to‐Ammonia Conversion

open access: yesAngewandte Chemie, EarlyView.
Efficient photocatalytic nitrate‐to‐ammonia conversion is achieved over an atomically precise Cu4I4 motif through dual‐site cooperation. Lewis‐acidic Cu centers promote nitrate adsorption and activation, while adjacent I sites facilitate active hydrogen generation for stepwise hydrogenation.
Wanting Zhang   +13 more
wiley   +2 more sources

From the Northern Hajar Foothills to the Batinah Coast – a Geoarchaeological Survey at Saham and Dahwa (Northern Oman)

open access: yesOpen Quaternary
This geoarchaeological survey was dedicated to (i) the Umm an-Nar (2700–2000 BCE) settlement site of Dahwa and surrounding areas in the foothills of the Hajar Mountains as well as (ii) the coastal area near Saham on the Batinah coastal plain in northern ...
Max Engel   +7 more
doaj   +1 more source

(Table 5) Luminescence-dating of sediment core 92-BC17 of the Arctic Ocean

open access: yes, 2007
(Table 5) Luminescence-dating of sediment core 92-BC17 of the Arctic ...
Glenn W Berger (6976814)   +1 more
core   +1 more source

Smart Bioinspired Material‐Based Actuators: Current Challenges and Prospects

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This work gathers, in a review style, an extensive and comprehensive literature overview on the development of autonomous actuators based on synthetic materials, bringing together valuable knowledge from several studies. Furthermore, the article identifies the fundamental principles of actuation mechanisms and defines key parameters to address the size
Alejandro Palacios   +4 more
wiley   +1 more source

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