Results 41 to 50 of about 50,297 (235)
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 +5 more
wiley +1 more source
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
Direct Growth of Transparent Boron Nitride Neutron Shielding Layer for Space Window
Advanced Science, EarlyView.Direct growth of sp2‐sp3 hybridized BN (HBN) on quartz, enabled by an h‐BN buffer, produces transparent and stable films up to 80 µm thick with high transmittance and strong neutron shielding, making HBN a promising candidate for space windows in long‐term lunar missions.
Dobin Kim +15 more
wiley +1 more source
A Novel Metal Foam‐Supported Solid Oxide Fuel Cell With High Specific Power
Advanced Science, EarlyView.Solid oxide fuel cells (SOFCs) employing metal foam supports with an ultrahigh porosity of 90% and average pore size of 100 µm are successfully fabricated. The metal foam architecture significantly enhances gas diffusion coefficients, effectively reducing concentration polarization while simultaneously decreasing areal mass.
Jingbo Ma +4 more
wiley +1 more source
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 +7 more
wiley +1 more source
Advanced Science, EarlyView.This study delineates macrophage heterogeneity along the acute kidney injury to chronic kidney disease transition. Single‐cell RNA sequencing reveals a TRAP5+ scar‐associated macrophage subset driven by Spp1–Cd44 signaling and mitochondrial metabolic reprogramming.
Chenxi Wang +13 more
wiley +1 more source
Systematically Engineering for Efficient Production of 3‐Methyl‐1‐Butanol in Escherichia coli
Advanced Science, EarlyView.An integrated metabolic engineering strategy was established for high‐level 3‐methyl‐1‐butanol biosynthesis in Escherichia coli. Molecular dynamics‐guided semi‐rational engineering of dihydroxyacid dehydratase uncovered and relieved key catalytic bottlenecks, while adaptive laboratory evolution enhanced strain robustness.
Nanfei Geng +6 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
Spatial modeling of techno‐economic potential of biojet fuel production in Brazil
GCB Bioenergy, 2020 It is expected that Brazil could play an important role in biojet fuel (BJF) production in the future due to the long experience in biofuel production and the good agro‐ecological conditions.
Walter Rossi Cervi +5 more
doaj +1 more source