Results 81 to 90 of about 149 (148)

Vertically Aligned Carbon Nanotube Mechano‐Electrochemical Generator for Ultralow‐Frequency Ocean Wave Monitoring

open access: yesAdvanced Science, EarlyView.
A mechano‐electrochemical generator is proposed that harvests energy from ultralow‐frequency waves below 0.01 Hz for self‐powered disaster monitoring. The generator minimizes signal distortion, enabling precise measurement of subtle waves with overlapping frequencies.
Hyeon Jun Sim   +10 more
wiley   +1 more source

Revealing the Mechanism of Exciton Spontaneous Separation at Room Temperature for Efficient Photocatalytic Hydrogen Peroxide Synthesis

open access: yesAdvanced Science, EarlyView.
This study identifies that replacing electron‐donating units at different positions enhances the delocalization of the electron cloud in the electron donors, which in turn increases the delocalization of the overall material. The exciton activation energy is effectively reduced, promoting the spontaneous dissociation of excitons at room temperature and
Pan Jiang   +9 more
wiley   +1 more source

Kinetically Limited Growth of Dendritic Tin Oxide Thin Films: a Machine Learning Study beyond the Structure Zone Diagram

open access: yesAdvanced Science, EarlyView.
This work presents a critical evaluation of the empirical Thornton's structure zone diagram, a cornerstone in predicting thin film microstructure. Through transmission electron microscopy, we observe that Sn─O thin films form nanosized dendrites, which are not expected according to the structure zone diagram.
Denis Music   +5 more
wiley   +1 more source

Solar‐Powered Hierarchical Microenvironments with Authigenic Multi‐Field Synergies for Simultaneous Extraction of Freshwater and Cesium

open access: yesAdvanced Science, EarlyView.
A biomass‐based solar‐powered hierarchical self‐extraction micro‐network (BSSM) is first proposed to achieve freshwater production and Cs+ extraction. This study establishes a transformative paradigm for resource recovery, providing a scalable and eco‐friendly panacea to address pressing global issues, including water scarcity, nuclear pollution, and ...
Liuyan Zhu   +10 more
wiley   +1 more source

Impact of Virus‐Mediated Modifications in Bacterial Communities on the Accumulation of Soil Organic Carbon

open access: yesAdvanced Science, EarlyView.
This study illustrates the impact of viruses on carbon cycling in soils with different availabilities of carbon. In conditions of low carbon availability, viruses adopt a lysogenic lifestyle, integrate into the host genomes and facilitate the degradation of carbon.
Mingfeng Liu   +8 more
wiley   +1 more source

Moisture Harvesting by the Structure Regulation of Hygroscopic Hydrogel for Energy and Water Sustainability

open access: yesAdvanced Electronic Materials, EarlyView.
Hygroscopic hydrogels are capable of utilizing the moisture from air, which can transfer the gaseous water to liquid by a surface phase transition. Taking advantage of this water, sustainable water production, thermal management, and electricity generation can be realized.
Yujie Du   +5 more
wiley   +1 more source

An Ultrathin Optoelectronic Memristor with Dual‐Functional Photodetector and Optical Synapse Behaviors for Neuromorphic Vision

open access: yesAdvanced Electronic Materials, EarlyView.
An optoelectronic memristor based on an ultrathin periodic heterostructure is proposed. The unique structure enables the integration of multiple functionalities, including those of a photodetector, electric synapse, and optical synapse. This work provides a framework to design ultrathin, multifunctional, and energy‐efficient neuromorphic chips for ...
Lilan Zou   +4 more
wiley   +1 more source

The effects of extreme weather on rural transportation infrastructure and crop prices along the Lower Mississippi River

open access: yesApplied Economic Perspectives and Policy, EarlyView.
Abstract Extreme weather events are worsening the fragile rural infrastructure in the United States, impacting trade flows of agricultural products. The Mississippi River, vital for transporting agricultural commodities, reached historic lows during the 2022 and 2023 fall harvests, increasing transportation costs and lowering crop prices.
James L. Mitchell, Hunter D. Biram
wiley   +1 more source

What matters for agricultural trade? Assessing the role of trade deal provisions using machine learning

open access: yesApplied Economic Perspectives and Policy, EarlyView.
Abstract This paper employs machine learning to determine which preferential trade agreement (PTA) provisions are relevant to agricultural trade patterns and the factors that may influence their adoption. Utilizing the three‐way gravity model, we apply plug‐in Lasso regularized regression to pinpoint predictive PTA provisions for agricultural trade ...
Stepan Gordeev   +3 more
wiley   +1 more source

Comparative Analysis of Hydrogen Production and Economic Feasibility: Direct versus Indirect Coupling of Photovoltaic Systems with Electrolyzers

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
This article examines the efficiency and cost‐effectiveness of green hydrogen production strategies: direct and indirect, with and without battery. Results show that the indirect configuration with battery yields the highest hydrogen production and profitability. The study discusses technical, energetic, and economic trade‐offs, providing insights into
Alfonso González del Valle   +2 more
wiley   +1 more source

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