Results 71 to 80 of about 180,865 (340)
Advanced Materials Technologies, EarlyView.A low‐cost, maskless visible light photopatterning system has been developed by combining a consumer‐grade projector with a single Fresnel lens, generating the Fresnel Lens Integrated Projector (FLIP) system. FLIP enables flexible photopatterning of solid and gel films with features down to 30 µm and 135 µm, respectively.
Sridaran Rajagopal +2 more
wiley +1 more source
BuildingsTo investigate the nonlinear flutter characteristics of long-span suspension bridges under different deck ancillary structures and configurations, including those with and without a central wind-permeable zone, as well as to analyze the hysteresis ...
Chunguang Li +5 more
doaj +1 more source
Advanced Optical Materials, EarlyView.The compositional engineering of Sn‐halide perovskite with alkylammonium chloride, combined with graded heterojunction formation using fullerene, is shown to significantly enhance crystallinity and reduce trap densities. Consequently, the resulting photodetectors achieve a 63.4% external quantum efficiency and a specific detectivity of 1.38 × 1011 ...
Jongmin Lee +10 more
wiley +1 more source
Flutter instability analysis of bridge decks using the step-by-step method
Vietnam Journal of Mechanics, 2014 The branch switch characteristics of coupled flutter are clarified by use of Step-by-Step flutter analysis. In the case of typically coupled flutter instability, the branch switch characteristic from torsional branch to heaving branch is observed.
Nguyen Van Khang, Tran Ngoc An
doaj +1 more source
Cloaking and Antennas: From Theoretical Paradigms to Next‐Generation Intelligent Systems
Advanced Optical Materials, EarlyView.The inception of electromagnetic cloaking sparked an immediate question: Can antennas be made invisible? Two decades later, this review charts the intertwined progress of major cloaking strategies (from transformation optics to scattering cancellation), metasurface technology, and their application to antennas, revealing how AI‐enabled devices are ...
Helen Guo, Xun Li
wiley +1 more source
Advanced Photonics Research, EarlyView.Electron acceleration using multipetawatt femtosecond lasers and subcritical density plasmas achieves a maximum charge of 245 nC, with an injection rate of up to 100 nC per picosecond. The charge variation with plasma density, initially increasing and then decreasing, arises from the competition between the injection of multiple plasma waves and laser ...
Xi‐Chen Hu +9 more
wiley +1 more source
Advanced Photonics Research, EarlyView.A scalable, low‐cost approach for assembling single germanium nanowires (NWs) into photodetectors is demonstrated using a modified dielectrophoresis method with a voltage‐divider circuit. This self‐limiting assembly technique achieves ultrahigh responsivity (>6 × 105 A W−1) at 700 and 1550 nm without requiring nanoscale electrodes, offering a versatile
Siriny Laumier +3 more
wiley +1 more source
A Skin‐Adherent Magneto‐Inertial Wearable for Real‐Time Joint Motion Analysis
Advanced Sensor Research, EarlyView.An imperceptible magneto‐inertial wearable couples a skin‐adherent PDMS‐NdFeB patch with a 9‐DoF IMU to track joint kinematics in real time and classify range‐of‐motion (Limited/Normal/Hypermobile) via a 1D‐CNN (95.3% accuracy). Wireless BLE streaming and a mobile app enable feedback.
Montserrat Ramirez‐De Angel +2 more
wiley +1 more source
F-16 flutter model studies with external wing stores [PDF]
Results from transonic flutter model studies are presented. The flutter model was constructed to support the flutter prevention and clearance program from preliminary design through flight flutter tests.
Bensinger, C. T., Foughner, J. T., Jr.
core +1 more source
Simulation of Carrier Injection Pathways in Axial GaN Nanowire MicroLEDs
Advanced Theory and Simulations, EarlyView.This study examines how geometrical variations in the active region affect carrier injection in multiple quantum well light‐emitting diodes (LEDs) based on axial nanowires. The key role of semipolar quantum wells located at the nanowire edges is highlighted, which efficiently facilitates electron injection into the central polar quantum wells.
Amadéo Vibert +3 more
wiley +1 more source