Results 51 to 60 of about 555,401 (353)
Morane AI et Dewoitine D. 530 : deux logiques de restauration pour une même finalité
The French Air and Space museum at le Bourget houses two iconic aerobatic airplanes: a Morane AI and a Dewoitine 530. Between 2012 and 2016, these two airplanes were restored at the museum’s workshop, under the leadership of the author. Due to their very
Arnaud Mars
doaj +1 more source
A large‐aperture, high focusing efficiency and polarization‐independent THz single‐layer achromatic metalens is reported via discrete multi‐wavelength achromatic design and global optimization algorithm. The fabricated metalens exhibits a largest diameter of 2.21 cm, excellent achromatic performance, extremely high average focusing efficiency (> 46 ...
Xiaoqiang Jiang +7 more
wiley +1 more source
A CCM‐based architectural strategy is introduced for high‐temperature PEM fuel cells, enabling MPL‐free carbon paper gas diffusion layers via decal‐transfer processing. By co‐engineering the CCM, GDL, and a G‐foam flow field, oxygen transport is enhanced while phosphoric‐acid leakage is suppressed, resulting in high power density and stable operation ...
Seongmin Cho +6 more
wiley +1 more source
The article considers the software of optimization technology allowing to enhance the work of the aerospace search and rescue system in terms of making decisions on the use of aircraft.
A. V. Sobolev, V. A. Popov
doaj +1 more source
This work presents lightweight, lignin‐derived carbon fiber current collectors that enable controlled lithium deposition. Structural defects and intermediate‐sized pores stabilize pre‐nucleation quasi‐metallic lithium clusters, promoting uniform lithium plating and stripping.
Samantha L. S. Southern +13 more
wiley +1 more source
The Flight of the Black Wolf Squadron [PDF]
By 1920, Alaska became economically, politically, and socially stale. Aviation brought a need revitalization to the territory. The Black Wolf Squadron's flight from New York to Nome brought international attention and promised new industries and ...
Widman, Benjamin
core
Self‐Heating and Thermal Gradient in Solid‐State Batteries: Friend or Foe?
This work investigates the role of self‐heating and thermal gradients derived from the kinetics/transport interactions within the cathode microstructure, electrode architecture, and operating regimes, thus encouraging a mechanism‐centric design of anode‐free solid‐state batteries for next‐generation high‐power applications.
Abhinand Ayyaswamy +2 more
wiley +1 more source
Markets Mitigate Land‐Use Competition From Energy Crops and Increase Farm Revenues
ABSTRACT Meeting the US Sustainable Aviation Fuel Grand Challenge target of 35 billion gal annually by 2050 will require an estimated 380 million–700 million dry tons of agricultural biomass feedstock. This study evaluates the implications of large‐scale biomass production for land use, crop production, and market outcomes under mature market ...
Daniel G. De La Torre Ugarte +2 more
wiley +1 more source
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 +3 more
wiley +1 more source
Pancake Lenses through Curved Lamination for Compact Virtual Reality
This article presents an ultrathin VR optical system based on a 1.35 in. microdisplay, leveraging curved lamination technology. Compared to mainstream solutions, the proposed design demonstrates superior compactness (volume compression by 12%) and enhanced optical performance.
Jiaping Sun +5 more
wiley +1 more source

