Results 31 to 40 of about 151,552 (312)
Defence Technology, 2022 Loitering munitions are increasingly used in armed conflicts. An extensive database of loitering munitions is developed based on information available in the public domain.
Mark Voskuijl
doaj +1 more source
Advanced Functional Materials, EarlyView.The ultrahard teeth of mollusks that feed on rocky substrates contain a wear‐resistant coating on their surfaces consisting of densely packed mesocrystalline magnetic nanoparticles within an organic matrix. These coatings display significant hardness and toughness through their highly controlled mesocrystalline architectures.
Taifeng Wang +7 more
wiley +1 more source
Rainbow Photonic Crystals: Self‐Assembly of Carbohydrate Bottlebrushes Block Copolymers
Advanced Materials, EarlyView.Full‐color reflective 1D photonic crystals, capable of a tunable, responsive, and reversible color with high repeatability, are created from the self‐assembly of carbohydrate‐based brush block copolymers (BR01‐04). Abstract Tunable and responsive photonic crystal systems are the subject of great research interest owing to their ability to actively ...
Hong Li +6 more
wiley +1 more source
Investigation of variation in the leading edge shapes on the aerodynamic characteristics over a delta wing [PDF]
EPJ Web of ConferencesThe present study deals with the effect of varying the slender delta wing's leading edge shapes on the aerodynamic characteristics using a subsonic wind tunnel.
Gupta Sugandh +3 more
doaj +1 more source
Moth‐Wing‐Inspired Multifunctional Metamaterials
Advanced Materials, EarlyView.This study develops a moth‐wing‐inspired heterogeneous metamaterial that achieves synergistic broadband sound absorption, mechanical energy dissipation, and thermal insulation within a lightweight architected framework. Combining bioinspired gradient design, genetic‐algorithm optimization, and additive manufacturing, the bionic heterogeneous acoustic ...
Haoran Pei +12 more
wiley +1 more source
Aerodynamic Performance of Lambda Wing-UCAV at Different Back-sweep Angles [PDF]
Journal of Applied Fluid MechanicsUnmanned Combat Aerial Vehicles (UCAVs) are designed to be lightweight and compact, which can impact their overall lift and aerodynamic capabilities. This study focuses on enhancing the Coefficient of Lift (CL) by optimising the Back Sweep Angle in the ...
S. Syam Narayanan +2 more
doaj +1 more source
Research progress of aerodynamic configuration technology of low sonic boom supersonic aircraft
Hangkong gongcheng jinzhan, 2023 The aerodynamic configuration of supersonic aircraft has an important effect on the intensity of sonic boom, and the low sonic boom supersonic configuration is the key of the new generation supersonic aircraft, so the aerodynamic configuration of low ...
SU Fengnian +5 more
doaj +1 more source
Advanced Materials, EarlyView.Schematic showing the leveraging of topology optimization, the printing of a tailored eutectic gallium‐indium liquid alloy electrode, and porous ceramic engineering to simultaneously enhance mechanical durability, stretchability, and sensing sensitivity to produce a highly deformable and stretchable sensor capable of monitoring complex and anisotropic ...
Hanmin Zeng +10 more
wiley +1 more source
Heat Transfer and Pressure Drop in a Developing Channel Flow with Streamwise Vortices [PDF]
, 1996 Experiments to assess the heat transfer and pressure-drop effects of delta-wing vortex generators placed at the entrance of developing channel flows are reported in this study.
Felton, K.C., Jacobi, A.M.
core
Advanced Materials, EarlyView.A solvent engineering strategy using polar polymers is introduced to regulate perovskite crystallization dynamics in solar cells. Strongly polarized fluorinated groups stabilize the intermediate phase and control solvent exfoliation, leading to high‐quality films with suppressed defects.
Zhuoqiong Zhang +14 more
wiley +1 more source