Results 121 to 130 of about 515 (250)
Feature extraction for an image retrieving scheme
Journal of Computer Science and Technology, 1999 In this paper we present two basic modules whithin the designed scheme for retrieving images of a database from the object colour and shape in the scenes. On the one hand, we desing a new method to detect edges in colour images.
José Manuel Fuertes García +3 more
doaj
Advanced Science, EarlyView.High‐pressure investigations uncover the structural determinants of luminescence intensity and shifts in aramids, establishing intrinsic intramolecular rotation as a reliable predictor of their piezofluorochromic behavior. Leveraging this insight, conjugation modulation is proposed as a precise strategy to tune their piezofluorochromic properties ...
Yayun Wang +10 more
wiley +1 more source
Advanced Science, EarlyView.A facile eutectic strategy is developed, guided by molecular dynamics simulations, to create leakage‐free phase change materials from lauric acid and sodium acetate trihydrate. These organic–inorganic eutectic composites effectively stabilize thermochromic dyes, yielding materials with exceptional shape stability and cyclically reversible color change.
Shiliang Zhou +4 more
wiley +1 more source
Recent Progress in Mechanoluminescence for Multi‐Dimensional Stress Monitoring
Advanced Science, EarlyView.Multi‐dimensional stress visualization technology (0D point detection, 1D linear distribution, 2D planar imaging, 3D volume reconstruction) has become a focus of attention in the field of stress sensing. The transition from “points” to “multi‐dimensional spatial fields” facilitates real‐time, in situ, and high‐resolution visualization of stress ...
Xiuxia Yang +3 more
wiley +1 more source
Broadband Achromatic Programmable Electromagnetic Camouflage via Fluidic‐Accessible Metasurface
Advanced Science, EarlyView.A fluidic access metasurface enables dynamic, broadband electromagnetic illusions. By physically reconstructing conductive patterns with liquid metal, the metasurface achieves real‐time, pixel‐level control over phase dispersion. This allows for the programmable generation of arbitrary strong scattering point arrays, effectively deceiving high ...
Shipeng Liu +14 more
wiley +1 more source
Advanced Energy Materials, EarlyView.This roadmap offers a forward‐looking perspective on spin enhancement in the oxygen evolution reaction. It highlights how combining systematic experiments, advanced computational modeling, and novel magnetic, chiral, or hybrid materials can deepen the understanding of spin‐dependent catalytic mechanisms.
Emma van der Minne +29 more
wiley +1 more source
Advanced Energy Materials, EarlyView.This work presents a novel bulk‐heterojunction‐integrated organic luminophore geometry using amphiphilic polymer conetworks as an interlayer scaffold. The design enhances optoelectronic performance via efficient downconversion and reinforced molecular stacking, offering a versatile architecture that paves the way for next‐generation organic solar cells.
Chieh‐Szu Huang +11 more
wiley +1 more source
Thiosulfonate‐Derived BODIPY “Stick and Glue” Strategy for Fluorescent Thiol Labeling
Angewandte Chemie, EarlyView.We present a powerful photochemical strategy for converting disulfide bonds into stable thioether linkages via a [1,2]‐sigmatropic rearrangement. By integrating this reaction into traditional methanethiosulfonate‐based thiol labeling, we enable light‐triggered stabilization of peptide and protein conjugates with enhanced robustness and versatility ...
Lucie Šálková +4 more
wiley +2 more sources
Advanced Intelligent Systems, EarlyView.This study presents a compact freeform projection optics using dual wedge prisms for waveguide displays. Unlike previous designs that separate illumination and imaging paths, a freeform optical path integrates both. The system achieves a 32º field of view, 37.5 pixels per degree, and a total volume of less than 2 cm3.
Ximeng Wang +5 more
wiley +1 more source