Results 81 to 90 of about 14,550 (304)

Surface‐Spin‐Induced Magnetic Loss Enhancement in Ultralight Electromagnetic Absorbers

Advanced Science, EarlyView.
Fe3O4 nanoparticles with different hollow rates were synthesized to demonstrate the key role of surface moment in magnetic loss process. Using the same volume filling ratio, the 54.1% hollow Fe3O4 absorber represents about 20% enhancement in the imaginary part (μ'') than solid particles due to the coexisting magnetic resonance of inside and outside ...
Ruimin Ren, Ke Yang, Chichong Lu, Song Ma, Bowen Zheng, Zhenhui Ma   +5 more
wiley   +1 more source

A Quantitative Lithium Inventory Framework for Anode‐Free Lithium Metal Batteries

Advanced Energy Materials, EarlyView.
A component‐resolved lithium inventory framework quantitatively tracks Li redistribution across the cell in anode‐free NMC622||Cu pouch cells throughout cycling. Three sequential degradation stages are identified: formation‐driven cathode Li depletion, midlife inactive Li0 accumulation, and late‐stage runaway SEI thickening. The cathode, as the sole Li
Wurigumula Bao, Alex Liu, Thomas S. Marchese, Yuanlong Bill Zheng, Weikang Li, Dhevathi Rajan Rajagopalan Kannan, Vallabha Rao Rikka, Vinay Premnath, Judith Jeevarajan, Ying Shirley Meng   +9 more
wiley   +1 more source

MOBILE OPTICAL HIGH-SPEED DATA LINKS WITH SMALL TERMINALS

, 2009
Mobile Optical Free-Space Communication (MFSO) downlinks from observation platforms in low earth orbit or in the atmosphere will allow nearly undetectable high-speed data links with small and low-power laser communication terminals.
Giggenbach, Dirk, D. Giggenbach
core   +1 more source

Smart Bioinspired Material‐Based Actuators: Current Challenges and Prospects

Advanced 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, Léon Chiriatti, Simon Poppinga, Thomas Speck, Vincent Le Houérou   +4 more
wiley   +1 more source

Aircraft Observations of Aerosol Properties and Their Impact on Cloud Droplets in Gansu Province

应用气象学报
Aerosol-cloud interaction has significant influences on radiation balance, water cycle and energy cycle of earth-air system. Sources of aerosols in Gansu Province are complex, involving both natural and anthropogenic activities. Based on typical aircraft
Wang Yanfeng, Zhang Qiang, Xi Lizong, Leng Wennan, Li Xia, Wang Rong, Huang Shan   +6 more
doaj   +1 more source

Emission Fourier transform spectroscopy for remote sensingof the Earth's atmosphere

Annals of Geophysics, 2003
Fourier transform emission spectroscopy can make an important contribution in the observation of the Earth's atmosphere and in the investigation of atmospheric physics and chemistry.
B. Carli, U. Cortesi, G. Bianchini
doaj   +1 more source

Robust Reinforcement Learning Control Framework for a Quadrotor Unmanned Aerial Vehicle Using Critic Neural Network

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
Quadrotor unmanned aerial vehicle control is critical to maintain flight safety and efficiency, especially when facing external disturbances and model uncertainties. This article presents a robust reinforcement learning control scheme to deal with these challenges.
Yu Cai, Yefeng Yang, Tao Huang, Boyang Li   +3 more
wiley   +1 more source

Research on Optimal Attitude of Large Deformation Airplane in Full‑Scale Aircraft Static Test

Transactions of Nanjing University of Aeronautics and Astronautics
The accuracy of the full-scale aircraft static tests is greatly influenced by the aircraft attitude. This paper proposes an aircraft attitude optimization method based on the characteristics of the test.
ZHENG Jianjun, JIN Feng, LIU Wei, ZHANG Yiming, GUO Qiong   +4 more
doaj   +1 more source

Prediction of dynamic pairwise wake vortex separations for approach and landing

, 2012
Design and performance of the Wake Vortex Prediction and Monitoring System WSVBS are described. The WSVBS has been developed to tactically increase airport capacity for approach and landing on single runways as well as closely-spaced parallel runways. It
Schwarz, Carsten, Holzäpfel, Frank, Dengler, Klaus, Gerz, Thomas   +3 more
core  

Sensor validation of a Structural Health Monitoring Process for Aircraft Nacelle [PDF]

, 2014
This paper details the implementation process of an embedded structural health monitoring (SHM) system enabling condition-based maintenance of aircraft nacelles.
GUSKOV, Mikhail, MASSOT, Tristan, MECHBAL, Nazih, RÉBILLAT, Marc, FENDZI, Claude   +4 more
core