Results 51 to 60 of about 100,260 (295)

Collision‐Resilient Winged Drones Enabled by Tensegrity Structures

Advanced Robotics Research, EarlyView.
Based on structures of birds such as the woodpeck, this article presents the collision‐resilient aerial robot, SWIFT. SWIFT leverages tensegrity structures in the fuselage and wings which allow it to undergo large deformations in a crash, without sustaining damage. Experiments show that SWIFT can reduce impact forces by 70% over conventional structures.
Omar Aloui, Raphael Zufferey, William Stewart, Mohammad Askari, Simon Jeger, Dario Floreano   +5 more
wiley   +1 more source

SOFTWARE OPTIMIZATION TECHNOLOGY OF AIRCRAFT COMPOSITION IN OPERATIONAL PLANNING IN THE AEROSPACE SEARCH AND RESCUE SYSTEM

Научный вестник МГТУ ГА, 2018
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

Comparison of Visual and Visual–Tactile Inspection of Aircraft Engine Blades

Aerospace, 2021
Background—In aircraft engine maintenance, the majority of parts, including engine blades, are inspected visually for any damage to ensure a safe operation.
Jonas Aust, Antonija Mitrovic, Dirk Pons
doaj   +1 more source

Targeted Expansion of Treg Cells to Induce Immune Tolerance after Kidney Transplantation

Advanced Science, EarlyView.
A dual‐targeting nanoparticle platform that selectively engages graft stromal cells via CD248 receptors while employing kidney‐ specific promoters (NPHS2) to drive localized IL‐ 2/TGF‐βexpression is developed. This approach achieves three therapeutic objectives:1) intragraft Treg polarization without systemic cytokine exposure;2) reduced dependence on ...
Tong Lu, Hongtao Song, Limin He, Zhihao Hu, Yu Li, Chao Xu, Shaojie Liu, Jun Jiang, Yike Zhou, Zhengxuan Li, Zeyu Li, Keying Zhang, Shuaijun Ma, Ruochen Qi, Shichao Han, Changhong Shi, Weihong Wen, Donghui Han, Weijun Qin   +18 more
wiley   +1 more source

Ultra‐Thin Oxide‐Based Double‐Layer Architecture Achieves Wide‐Temperature Broadband Microwave Absorption by Synergizing Lorentz Resonance and Thermionic Transport

Advanced Science, EarlyView.
Developing ultrathin wide‐temperature adaptive microwave absorption materials (MAMs) is crucial for enhancing the survival of military devices under alternating high‐temperature environment. Here, a double‐layer La2Zr2O7/Eu2Zr2O7 architecture is employed, with rare‐earth zirconates featuring with one‐eighth anion‐site vacancies, successfully achieving ...
Zewen Duan, Ruopeng Cui, Yi Li, Lu Gao, Xuefei Zhang, Lingfeng Yuan, Biao Zhao, Chunlei Wan   +7 more
wiley   +1 more source

Superelastic High‐Entropy Oxide Ceramic Aerogels for Thermal Superinsulation and Sealing at Extreme Conditions

Advanced Science, EarlyView.
A high‐entropy oxide ceramic of (Gd1/2Lu1/2)2(Ti1/3Zr1/3Hf1/3)2O7 is prepared through a molecular synthesis route of pyrolytic solid‐solution reactions. The architectured nanofiber aerogel manifests unprecedented thermomechanical properties, including superelastic compressibility of 98% from −196 to 1500 °C, and thermal superinsulation capacity (24.14 ...
Xiaoke Jiang, Tao Du, Hengzhong Fan, Junhong Liu, Yunfeng Su, Peng He, Hongxiang Chen, Litian Hu, Yongsheng Zhang, Qiangqiang Zhang   +9 more
wiley   +1 more source

Piezo‐Phototronic PVDF/HfO2/Nano‐Cu Heterostructured Thin Film for Flexible Self‐Powered Multimodal Sensing

Advanced Science, EarlyView.
Electrospinning a composite of PVDF, HfO2, and nano‐Cu transforms the discrete precursors into a continuous nanofiber mesh, forming a multi‐interface heterostructure with embedded nanoparticles. The presence of HfO2 and nano‐Cu at the fiber interfaces induces a highly aligned β‐phase, which enhances piezoelectric crystallinity and improves the material'
Jiawei Gu, Qiongle Peng, Xuanqi Zhong, Yi Zheng, Zhiqiang Ma, Xiaoxian Song, Ruihuan Zhang, Bao Liu, Yanhu Zhang, Zhengbao Yang   +9 more
wiley   +1 more source

Terroristic Risks in Aviation Security: Jurisdictional Aspect [PDF]

, 2021
Iryna Sopilko, Sofiia Lykhova, Наталя Семчук   +2 more
openalex   +1 more source

Microscale Mapping of Fiber Strain and Damage in Composite Wrinkled Laminates Using Computed Tomography Assisted Wide‐Angle X‐Ray Scattering

Advanced Science, EarlyView.
This study combines full‐field tomography with diffraction mapping to quantify radial (ε002$\varepsilon _{002}$) and axial (ε100$\varepsilon _{100}$) lattice strain in wrinkled carbon‐fiber specimens for the first time. Radial microstrain gradients (−14.5 µεMPa$\varepsilon \mathrm{MPa}$−1) are found to signal damage‐prone zones ahead of failure, which ...
Hoang Minh Luong, James Trevarthen, Igor Dolbnya, Wadwan Singhapong, Nicholas Pilato, Richard Butler, Jiraphant Srisuriyachot, Alexander J. G. Lunt   +7 more
wiley   +1 more source

Legal environment and operation of general aviation aerodromes – the overview [PDF]

Scientific Journal of Silesian University of Technology. Series Transport, 2015
The functioning of general aviation aerodromes in Poland are regulated by more than 20 national and international legal acts. Knowledge about air law and its application ensures safe operations and flights at aerodromes and airfields.
Henryk JAFERNIK, Radosław FELLNER
doaj