Results 131 to 140 of about 52,493 (283)
A Visual Secret Sharing Scheme without Pixel Expansion
, 2014 視覺機密分享機制（visual secret sharing scheme，簡稱VSS）的主要概念是將機密影像（secret image）拆成數張分享影像（share images），還原機密影像時不需要複雜運算與專業密碼學知識，是利用人類的視覺感官系統解密。就安全性而言，任何人都無法僅由其中單一分享影像獲知機密影像上的資訊。 在傳統視覺密碼中，為了達到資訊隱藏的目的，機密影像中的每一個像素（pixel）都會被擴張成若干個子像素（sub-pixel），此作用稱為像素擴張（pixel-
黃竫淳, Huang, Ching-Chun
core
Advanced Healthcare Materials, EarlyView.A 3D‐printed piezoionic GPMx hydrogel enables stable electromechanical signal generation under mechanical loading, exhibiting long‐term durability and low fatigue. As a bioactive patch, it restores endogenous bioelectricity to stimulate osteogenesis via Ca2+ influx and mitochondrial activation, while simultaneously enabling label‐free alkaline ...
Sayan Deb Dutta +3 more
wiley +1 more source
Advanced Healthcare Materials, EarlyView.Metabolic labeling of nascent proteins in 3D microtissue spheroids provides a powerful analytical approach for large‐scale tissue engineering. Incorporation of non‐canonical amino acids with fluorescent tagging enables spatiotemporal investigation of extracellular matrix deposition and its evolution during multicellular tissue development and fusion ...
Theresa Koenig +3 more
wiley +1 more source
Advanced Healthcare Materials, EarlyView.Microfluidic coaxial extrusion generates size‐controlled 3D lymphatic tubes from primary human dermal lymphatic endothelial cells in a defined four‐component matrix. These engineered vessels self‐organize into stable lymphatic endothelium, maintain selective macromolecular permeability for 30 days, and enable direct comparison with blood endothelial ...
Elsa Mazari‐Arrighi +8 more
wiley +1 more source
Affine and Deformable Registration Based on Polynomial Expansion
, 2008 . This paper presents a registration framework based on the polynomial expansion transform. The idea of polynomial expansion is that the image is locally approximated by polynomials at each pixel.
Carl-fredrik Westin, Gunnar Farnebäck
core
Atomic Layer Deposition Processes: Versatile Platforms for Engineering ZnO‐Chitosan Biointerfaces
Advanced Healthcare Materials, EarlyView.Vapour phase metalation (VPM), multiplied pulsed vapour phase infiltration (MPI), and O2 plasma‑enhanced atomic layer deposition (PEALD) tailor Zn–chitosan (Zn‑CS) films. PEALD improves wettability and biocompatibility. MPI enhances semiconductor behavior. Antiseptic selectivity: VPM → E. coli; MPI → H. pylori.
Mabel Moreno +17 more
wiley +1 more source
Plasmonic Enhancement of Fluorescence and Protein Dynamics in Living Mammalian Cells
Advanced Materials, EarlyView.This study demonstrates plasmonic enhancement of the function of fluorescent voltage sensing proteins (genetically encoded voltage indicators, (GEVIs), QuasAr6) in live mammalian cells. Coupling to plasmonic nanoparticles does not just increase fluorescence, but influences the protein photocycle, creating a hybrid sensor with its response speed to ...
Marco Locarno +16 more
wiley +1 more source
FPGA-based reconfigurable scanning and data acquisition system for scanning electron microscopy. [PDF]
Appl MicroscGong K, Kim J, Kim BG, Cho B.
europepmc +1 more source
Expansion Embedding Techniques for Reversible Watermarking
, 2008 —Reversible watermarking enables the embedding of useful information in a host signal without any loss of host information. Tian’s difference-expansion technique is a high-capacity, reversible method for data embedding.
Diljith M. Thodi +2 more
core
Ferroelectric Quantum Dots for Retinomorphic In‐Sensor Computing
Advanced Materials, EarlyView.This work has provided a protocol for fabricating retinomorphic phototransistors by integrating ferroelectric ligands with quantum dots. The resulting device combines ferroelectricity, optical responsiveness, and low‐power operation to enable adaptive signal amplification and high recognition accuracy under low‐light conditions, while supporting ...
Tingyu Long +26 more
wiley +1 more source