Results 121 to 130 of about 13,991,852 (286)

Covert Optical Fingerprints Within Overt Structural Colors via Cascaded Cavity Resonances

open access: yesAdvanced Science, EarlyView.
Cascaded photonic–plasmonic cavities combine vivid structural colors with hidden stochastic optical fingerprints in a single monolithic platform. Layered cavities control the overt appearance, while disordered nanogap resonances generate covert scattering with limited mutual influence.
Gyurin Kim   +6 more
wiley   +1 more source

Copy Move Image Forgery Detection using Multi-Level Local Binary Pattern Algorithm

open access: yesJournal of Engineering
Digital image manipulation has become increasingly prevalent due to the widespread availability of sophisticated image editing tools. In copy-move forgery, a portion of an image is copied and pasted into another area within the same image.
Marwa Emad Mahdi, Nada Hussein M Ali
doaj   +1 more source

State of the art in passive digital image forgery detection: copy-move image forgery

open access: yes, 2018
Authenticating digital images is increasingly becoming important because digital images carry important information and due to their use in different areas such as courts of law as essential pieces of evidence.
Sadeghi, Somayeh   +4 more
core  

Pressure‐Activated and Retained Blue Emission in Melamine Through Hydrogen‐Bond and Packing Regulation

open access: yesAdvanced Science, EarlyView.
Pressure treatment activates and retains bright blue emission in melamine (MA). The pressure‐modified hydrogen‐bonding network and molecular packing create a distinct local environment after decompression, changing the balance among competing excited‐state relaxation pathways and enabling retained emission.
Siyao Wang   +8 more
wiley   +1 more source

Detection of Image Forgery [PDF]

open access: yesInternational Journal of Engineering Research and, 2020
openaire   +1 more source

Excitation‐Selective Hydrochromic Upconversion in Zero‐Dimensional Metal Halides

open access: yesAdvanced Science, EarlyView.
Excitation wavelength dictates whether moisture speaks. In zero‐dimensional metal halides, the same humidity leaves the upconversion emission unchanged under 980 nm excitation yet triggers a distinct green‐to‐red shift under 1550 nm. This excitation‐selective hydrochromism, governed by the absorption at each wavelength, enables stimulus‐dependent ...
Joo Hyeong Han   +6 more
wiley   +1 more source

Epithelial SLC25A20 Deficiency Drives Immunosuppressive Neutrophil Remodeling via ARG1 Palmitoylation to Promote Colorectal Cancer

open access: yesAdvanced Science, EarlyView.
SLC25A20 deficiency in tumor cells compromises mitochondrial LCFA transport, which suppresses FAO and drives compensatory release of palmitic acid‐enriched lipids into the TME. These tumor‐derived palmitic acids are taken up by TANs, promoting ZDHHC18‐catalyzed ARG1 palmitoylation.
Yue Han   +8 more
wiley   +1 more source

“Lithium‐Free” Anode Solid‐State Batteries Enabled by 3D Structured Miec Garnet

open access: yesAdvanced Energy Materials, EarlyView.
“Lithium‐free” anode solid‐state batteries can maximize energy density by eliminating excess lithium metal but are limited by unstable lithium nucleation and poor lithium reversibility at solid interfaces. A mixed ionic and electronic conducting garnet scaffold promotes uniform lithium deposition within a three‐dimensional porous framework at low ...
George V. Alexander   +6 more
wiley   +1 more source

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