Results 101 to 110 of about 3,647,086 (349)

Controlling Minimally-Actuated Vehicles for Applications in Ocean Observation

, 2012
Establishing a persistent presence in the ocean with an AUV to observe temporal\ud variability of large-scale ocean processes requires a unique sensor platform. In this paper, we\ud propose a strategy that utilizes ocean model predictions to increase the
Huynh, Van T., Smith, Ryan N.
core   +1 more source

Emergence of the North Pacific heat storage pattern delayed by decadal wind-driven redistribution

Nature Communications
Storage of anthropogenic heat in the oceans is spatially inhomogeneous, impacting regional climates and human societies. Climate models project enhanced heat storage in the mid-latitude North Pacific (MNP) and much weaker storage in the tropical Pacific.
Jing Duan, Yuanlong Li, Yilong Lyu, Zhao Jing, Fan Wang   +4 more
doaj   +1 more source

Weekly green tide mapping in the Yellow Sea with deep learning: integrating optical and synthetic aperture radar ocean imagery [PDF]

Earth System Science Data
Since 2008, the Yellow Sea has experienced the world's largest-scale marine disaster, the green tide, marked by the rapid proliferation and accumulation of large floating algae. Leveraging advanced artificial intelligence (AI) models, namely AlgaeNet and
L. Gao, Y. Guo, X. Li
doaj   +1 more source

Tunable‐Threshold UV Dosimetry With Programmable Luminescent Tags via Oxygen‐Mediated Room‐Temperature Phosphorescence

Advanced Materials Technologies, EarlyView.
A fully organic UV threshold dosimeter is developed by exploiting the oxygen‐sensitive room‐temperature phosphorescence of a purely organic emitter in a polymer matrix. Upon reaching a specific cumulative UV dose, photochemical oxygen depletion triggers a sharp, high‐contrast emission.
Tim Achenbach, Paul‐Anton Will, Karl Sebastian Schellhammer, Sebastian Reineke   +3 more
wiley   +1 more source

Direct Measurement of the Singlet Lifetime and Photoexcitation Behavior of the Boron Vacancy Center in Hexagonal Boron Nitride

Advanced Optical Materials, EarlyView.
Negatively charged boron vacancy defects in hexagonal boron nitride promise near‐surface quantum sensing, but their internal spin transition rates are only partly understood. This work directly measures the defect's singlet‐state lifetime, 15(3) ns, using a nanosecond rise‐time dual‐pulse photoluminescence‐recovery method, and shows that high laser ...
Richard A. Escalante, Andrew J. Beling, Daniel G. Ang, Niko R. Reed, Justin J. Welter, John W. Blanchard, Cecilia Campos, Edwin Coronel, Klaus Krambrock, Alexandre S. Leal, Paras N. Prasad, Ronald L. Walsworth   +11 more
wiley   +1 more source

Suppressed Changes of the Makassar Strait Throughflow During the 2020–2023 “Triple‐Dip” La Niña by Indian Ocean Winds

Geophysical Research Letters
As a crucial component of global ocean circulation, the Indonesian Throughflow (ITF) is modulated by the El Niño‐Southern Oscillation. While multi‐year La Niña events often greatly enhance the volume transport of the ITF, the 2020–2023 La Niña caused ...
Rui Li, Janet Sprintall, Yuanlong Li, Yilong Lyu, Fan Wang   +4 more
doaj   +1 more source

Naphthyridine‐Based Donor–Acceptor Boron Difluoride Complexes Targeting Red Emission in Organic Light‐Emitting Diodes

Advanced Optical Materials, EarlyView.
Four donor–acceptor boron difluoride complexes based on triphenylamine donor and a naphthyridine acceptor units were synthesized, studied, and applied as OLED emitters. They exhibit pronounced intramolecular charge transfer character, balanced charge transport properties, and tunable emission. Near‐unity PLQYs are achieved for selected compounds, while
Omar Lahna, Stepan Kutsiy, Dmytro Volyniuk, Roman Luboradzki, Elina Andresen, Ute Resch‐Genger, Juozas V. Grazulevicius, Pavlo Stakhira, Mykhaylo A. Potopnyk   +8 more
wiley   +1 more source

Bayesian‐Optimized Dual‐Mode Luminescence‐Based Optical Thermometry Enabled by Negative Thermal Expansion in Lu2(MoO4)3:Yb–Er–Tm Phosphor

Advanced Optical Materials, EarlyView.
A Bayesian optimization framework identifies the ideal composition for Lu2(MoO4)3:Yb–Er–Tm phosphors with minimal experimental trials. By leveraging the host's negative thermal expansion, the material achieves remarkable thermal quenching compensation.
Reiko Furukawa, Takuya Hasegawa, Tong Fang, Saneyuki Ohno, Tomoyo Goto, Yasushi Sato, Ayahisa Okawa, Shu Yin   +7 more
wiley   +1 more source

Phase‐Resolved Attribution of Tropical Cyclone Cold Wakes From an Interpretable Data‐Driven Model

Journal of Geophysical Research: Machine Learning and Computation
Tropical cyclones (TCs) generate pronounced sea surface cooling through multiscale air‐sea interactions, yet predicting its full evolution and identifying the governing mechanisms remain challenging. Here we develop TC‐Net, an interpretable deep learning
Yingjie Liu, Dongliang Shen, Haoyu Wang, Yue Wang, Xiaofeng Li, Shanshan Mu   +5 more
doaj   +1 more source

Circularly Polarized Red‐NIR Emission With High Dissymmetry Factor From Achiral [Mo6I8(OCOC2F5)6]2− Cluster Anion Embedded in a Bent‐Core Liquid Crystal Host

Advanced Optical Materials, EarlyView.
Associating a chiral bent core liquid crystal molecule, that self‐assembles into helical nanofilaments, with an achiral red‐NIR phosphorescent octahedral molybdenum cluster produces a hybrid material exhibiting efficient red‐NIR circularly polarized emission under UV excitation.
Jeanne Rebours, Shamima Akhter, Md Kamrul Hasan, Serge Paofai, Maria Amela‐Cortes, Marianne Estelle Prévôt, Yann Molard   +6 more
wiley   +1 more source