Results 131 to 140 of about 12,501,323 (353)

Steering Oxygen Activation Pathways via Redox Dual‐Defects in 2D Hydrated WO3 for High‐Yield Singlet Oxygen Evolution

Advanced Functional Materials, EarlyView.
Redox dual‐defects (Cs substitution and O vacancies) in 2D hydrated WO3 steer O2 activation toward selective singlet oxygen evolution. WO‐CO achieves 8.6–15.8 times higher 1O2 production than single‐defect or pristine catalysts, enabling efficient pollutant mineralization via a pathway‐selective photocatalytic mechanism.
Sheng‐Qi Guo, Mingqi Xiao, Fangyuan Zhang, Hui Li, Yuli Jia, Zhenfang Zhang, Liqun Ye, Bo Yang, Tianyi Ma   +8 more
wiley   +1 more source

Light trapping in fluorescent solar collectors

, 2012
A fluorescent solar collector (FSC) is an optoelectronic waveguide device that can concentrate both diffuse and direct sunlight onto a solar cell which is then converted to electricity.
Soleimani, Nazila
core  

Study of Reconnection Dynamics and Plasma Relaxation in MHD Simulation of a Solar Flare

Self-organization in continuous systems is associated with dissipative processes. In particular, for magnetized plasmas, it is known as magnetic relaxation, where the magnetic energy is converted into heat and kinetic energy of flow through the process ...
Agarwal, Satyam, Bhattacharyya, Ramit, Yang, Shangbin   +2 more
core   +1 more source

Climate - How unusual is today's solar activity?

, 2005
To put global warming into context requires knowledge about past changes in solar activity and the role of the Sun in climate change. Solanki et al.1 propose that solar activity during recent decades was exceptionally high compared with that over the ...
Joos, F, Fortunat Joos, Raimund Muscheler, Snowball, Ian, Müller, Simon A., Ian Snowball, Joos, Fortunat, Simon A. Müller, Muscheler, Raimund, Muller, S A, Lund University., Muscheler, R, Snowball, Ian,   +12 more
core   +1 more source

Space Weather and Low‐Altitude Drone Economy

Space Weather
Unmanned Aerial Vehicles (UAVs) are becoming integral to the emerging low‐altitude economy, operating primarily below 3,000 m for applications such as logistics, inspection, precision agriculture, and urban air mobility.
Dabin Xue, Qing‐He Zhang, Xueshang Feng, Chi Wang   +3 more
doaj   +1 more source

Investigating the Electric Field Influence on Total Ionization Dose Effects in Space Radiation for Carbon Nanotube Field Effect Transistors

IEEE Access
Carbon nanotube field effect transistors (CNTFETs) are considered ideal components for radiation-hardened integrated circuits (ICs) due to their material and structural properties.
Yanan Liang, Qian Chen, Rui Chen, Runjie Yuan, Ziyu Wang, Hailong Yu, Jianwei Han   +6 more
doaj   +1 more source

How deterministic is the Earth ionosphere's response to solar activity? [PDF]

Astrophys Space Sci, 2022
Mendez AL.
europepmc   +1 more source

Bandgap‐Engineered AlGaAs/GaAs Heterostructures for Wavelength‐Selective Dual‐Polarity Photoelectrochemistry

Advanced Functional Materials, EarlyView.
Bandgap‐engineered AlGaAs/GaAs heterostructures exhibit wavelength‐selective dual‐polarity photoelectrochemistry, switching from photocathodic to photoanodic response depending on excitation wavelength. The polarity transition is governed by band‐selective absorption, built‐in electric‐field‐driven carrier transport, and interfacial charge‐transfer ...
Yukai Mao, Lipin Chen, Jules Courtin, Siyu Lin, Gangri Cai, Yan Zhu, Yoan Léger, Nicolas Bertru, Jinshi Zhao, Charles Cornet   +9 more
wiley   +1 more source

An EOF Analysis of Water Vapor in the Middle Atmosphere and Lower Thermosphere Based on TIMED/SABER

Remote Sensing
As a critical trace gas and a sensitive indicator of climate change, water vapor (H2O) plays a pivotal role in regulating the Earth’s radiative budget and middle-atmospheric chemical cycles.
Hongyu Liang, Zhaoai Yan, Xiong Hu, Cui Tu, Zhibin Sun, Meng Zhang   +5 more
doaj   +1 more source

Is It Real Type‐II or S‐Scheme? A Three‐Phase Diagnostic Protocol for Identifying Potentially Mislabeled Heterojunction Photocatalysts

Advanced Functional Materials, EarlyView.
Diagnostic analysis via the heterojunction validation funnel. The funnel illustrates the hierarchical stratification of 30 reported Type‐II systems based on the three‐phase, seven‐step diagnostic framework. Complete validation through all phases is achieved by only 3.3% of systems, while 96.7% lack full mechanistic validation, revealing a pervasive ...
Ki‐Hyun Kim
wiley   +1 more source