Results 81 to 90 of about 59,676 (299)
Advanced Functional Materials, EarlyView.Viscoelasticity‐driven instabilities are harnessed to create tunable, periodic textures in 3D‐printed liquid crystalline polymers. This study illustrates how processing parameters control these spontaneous meso‐scale patterns. These unique structural architectures unlock new possibilities for functional devices, ranging from photonic components to ...
Miaomiao Zou +17 more
wiley +1 more source
Advanced Functional Materials, EarlyView.A chiral photodetector capable of selectively distinguishing left‐ and right‐handed circularly polarized light is experimentally demonstrated. The device, which features a nanopatterned electrode inverse‐designed by a genetic algorithm within a metal–dielectric–metal nanocavity that incorporates a vacuum‐deposited small‐molecule multilayer, exhibits ...
Kyung Ryoul Park +3 more
wiley +1 more source
Wideband and Multiband Antenna Design and Fabrication for Modern Wireless Communications Systems
Journal of ICT Research and Applications, 2014 One of the major challenges due to spectrum scarcity in modern wireless communication is on antenna design that can serve a non-contagious frequency spectrum.
Adit Kurniawan, Salik Mukhlishin
doaj +1 more source
Compact and Broadband Microstrip-Line-Fed Modified Rhombus Slot Antenna [PDF]
, 2013 The printed microstrip-line-fed broadband rhombus slot antenna is investigated in this paper. With the use of the offset microstrip feed line and the corner-truncated protruded ground plane, the bandwidth enhancement and the slot size reduction for the ...
Jan, J. Y., Pan, C. Y., Wang, L. C.
core +1 more source
Broadband, Flexible, Skin‐Compatible Carbon Dots/Graphene Photodetectors for Wearable Applications
Advanced Functional Materials, EarlyView.Broadband, flexible photodetectors integrating nitrogen‐rich carbon dots with single‐layer graphene on plastic substrates are demonstrated. A biocompatible chitosan–glycerol electrolyte enables efficient low‐voltage gating and on‐skin operation. The devices exhibit ultraviolet‐to‐near‐infrared response, mechanical robustness under bending, and verified
Nouha Loudhaief +20 more
wiley +1 more source
Spatial Identification Methods and Systems for RFID Tags [PDF]
, 2013 Disertační práce je zaměřena na metody a systémy pro měření vzdálenosti a lokalizaci RFID tagů pracujících v pásmu UHF. Úvod je věnován popisu současného stavu vědeckého poznání v oblasti RFID prostorové identifikace a stručnému shrnutí problematiky ...
Povalač, Aleš
core
Membrane Wrapping for High Capacity and Rapidly Switchable Adhesives
Advanced Functional Materials, EarlyView.A membrane‐wrapping mechanism enables high‐capacity, rapidly switchable adhesion by coupling suction, friction, and adhesion. Broadband performance is achieved in dry and underwater conditions, allowing fast, reversible manipulation of objects of diverse sizes and shapes, from delicate eggs and berries to flat, complex, or heavy objects. These outcomes
Yeunhee Kim +2 more
wiley +1 more source
Communications satellite technology [PDF]
, 1964 Communications satellite technology - echo, relay, and syncom ...
Hedrich, A. L.
core +1 more source
Advanced Functional Materials, EarlyView.Pullulan, a biomass‐derived polysaccharide, is transformed into transparent optical fibers using a solvent‐free borax hydrogel‐spinning method. The fibers outperform PMMA with ≈200 MPa tensile strength and 200 °C stability, while uniquely guiding visible‐to‐NIR light and enabling additive‐free humidity sensing.
Yuya Fukata +4 more
wiley +1 more source
ANALYSIS OF ANTENNA SYSTEM MODELING WITH THE HELP OF SIMULATION TECHNOLOGY OF NAVIGATION EQUIPMENTS
Сучасні інформаційні системиIn this paper, a new coplanar waveguide CPW (Coplanar Waveguide) fed circular waveguide for ultra-wideband UWB (Ultra WideBand) applications using High-Frequency Structure Simulator (HFSS) and Computer Simulation Technology (CST) software is presented ...
Asad Rustamov +4 more
doaj +1 more source