Results 71 to 80 of about 7,352 (265)

Decadal changes in summer aerosol composition and secondary aerosol formation mechanisms in Beijing

Environmental Research Communications
Aerosol chemistry in China has undergone significant transformation due to stringent emission control measures, leading to great shifts in aerosol composition and formation mechanisms.
Siqi Zeng, Wei Zhou, Yan Li, Zijun Zhang, Yu Zhang, Yuying Wang, Kyung Hwan Kim, Dongsheng Ji, Bo Hu, Jin Young Kim, Zifa Wang, Yele Sun   +11 more
doaj   +1 more source

A numerical sensitivity study on the snow-darkening effect by black carbon deposition over the Arctic in spring [PDF]

Atmospheric Chemistry and Physics
The rapid warming of the Arctic, driven by glacial and sea ice melt, poses significant challenges to Earth's climate, ecosystems, and economy. Recent evidence indicates that the snow-darkening effect (SDE), caused by black carbon (BC) deposition, plays a
Z. Zhang, Z. Zhang, L. Zhou, L. Zhou, L. Zhou, M. Zhang, M. Zhang   +6 more
doaj   +1 more source

Machine-Learning-Based Near-Surface Ozone Forecasting Model with Planetary Boundary Layer Information. [PDF]

Sensors (Basel), 2022
Ko K, Cho S, Rao RR.
europepmc   +1 more source

Micromachined Double‐Membrane Mechanically Tunable Metamaterial for Thermal Infrared Filtering

Advanced Photonics Research, Volume 6, Issue 5, May 2025.
Herein, a mechanically tunable double‐layer plasmonic metamaterial leveraging the extraordinary optical transmission effect observed in subwavelength arrays of openings within thin metal layers is presented. The concept is experimentally validated by integrating the proposed metamaterial structure into an electrostatic parallel‐plate actuator to create
Oleg Bannik, Fedor Kovalev, Mingkai Liu, Michal Zawierta, Dilusha Silva, Lorenzo Faraone, Mariusz Martyniuk, Ilya Shadrivov   +7 more
wiley   +1 more source

Simultaneous Extraction of Planetary Boundary-Layer Height and Aerosol Optical Properties from Coherent Doppler Wind Lidar. [PDF]

Sensors (Basel), 2022
Chen Y, Jin X, Weng N, Zhu W, Liu Q, Chen J.   +5 more
europepmc   +1 more source

Elimination of Necking and Aspect Ratio Dependence in Uniaxial Actuators by Continuous Fiber Reinforcement

Advanced Robotics Research, EarlyView.
A novel carbon fiber reinforcement for dielectric elastomer actuators enhances actuation force while decoupling electromechanical performance from the actuator's aspect ratio. Unlike conventional fiber reinforcements, it enables a uniform planar stretch state along the entire actuator.
Markus Koenigsdorff, Stefania Konstantinidi, Anett Endesfelder, Petr Osipov, Johannes Mersch, E.‐F. Markus Vorrath, Martina Zimmermann, Yves Perriard, Gerald Gerlach   +8 more
wiley   +1 more source

A three-dimensional fractional solution for air contaminants dispersal in the planetary boundary layer. [PDF]

Heliyon, 2021
Tankou Tagne AS, Ele Abiama P, Ema'a Ema'a JM, Owono Ateba P, Ben-Bolie GH.   +4 more
europepmc   +1 more source

Soft Robotic Snake with Tunable Undulatory Gait for Efficient Underwater Locomotion

Advanced Robotics Research, EarlyView.
This study designs an underwater soft snake robot using 3D‐printed soft actuators, controlled by specific signals to generate sinusoidal undulation. Results show a positive correlation between speed and swing amplitude, with optimal performance at 2/3π phase offset, PLA tail, 1.2 voltage growth rate, and 6s undulation period achieving a maximum speed ...
Huichen Ma, Junjie Zhou, Raye Yeow
wiley   +1 more source

Weather radar detection of planetary boundary layer and smoke layer top of peatland fire in Central Kalimantan, Indonesia. [PDF]

Sci Rep, 2021
Rahman MA, Nugroho DS, Yamanaka MD, Kawasaki M, Kozan O, Ohashi M, Hashiguchi H, Mori S.   +7 more
europepmc   +1 more source

Hard‐Magnetic Soft Millirobots in Underactuated Systems

Advanced Robotics Research, EarlyView.
This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang, Zixuan Zhang, Bingyan Li, Junkai Wang, Hongcheng Gu   +4 more
wiley   +1 more source