Results 41 to 50 of about 3,733 (256)

Tamper‐Responsive Physical Unclonable Functions via Graphene‐Interlayered Block Copolymer Random Structures

Advanced Materials, EarlyView.
Self‐invalidating multilayer physical unclonable functions (PUFs) integrate fingerprint‐like metal nanopattern bilayers from block copolymer templates with highly reactive reduced graphene oxide (rGO) interlayers. This tamper‐responsive architecture blocks all unauthorized physical and chemical replication attempts while autonomously deactivating ...
Gyu Hui Jo, Dae Hui Park, Jeong‐Ho Jang, Woo Seok Tack, Jin Man Kim, Hak Ki Yu, Hyeong Min Jin, Jang Hwan Kim   +7 more
wiley   +1 more source

Photothermal Heat Spreading for Uniform Pixel Activation in NIR Laser‐Driven Thermochromic Liquid Crystal Displays

Advanced Materials Interfaces, EarlyView.
A pixelated full‐color display is driven by a 1064 nm near‐infrared laser without electrical wiring. A graphite photothermal layer converts light into heat, while an aluminum heat‐spreading layer redistributes it for uniform color within each pixel. Optimizing pixel size and spacing suppresses thermal crosstalk, enabling non‐contact reproduction of ...
Sang‐Mi Jeong, Hee Sung Seo, Taekyung Lim, Jonguk Yang, Sanghyun Ju   +4 more
wiley   +1 more source

A labelled image dataset of genuine and counterfeit Ugandan banknotes

Data in Brief
This data article describes a labelled image dataset of genuine and counterfeit Ugandan banknotes prepared for research on visual currency authentication and machine-learning-based counterfeit detection.
Denish Azamuke, Calvin Bamwesigye Kiiza, Marriette Katarahweire, Engineer Bainomugisha   +3 more
doaj   +1 more source

A Novel Counterfeit Feature Extraction Technique for Exposing Face-Swap Images Based on Deep Learning and Error Level Analysis

Entropy, 2020
The quality and efficiency of generating face-swap images have been markedly strengthened by deep learning. For instance, the face-swap manipulations by DeepFake are so real that it is tricky to distinguish authenticity through automatic or manual ...
Weiguo Zhang, Chenggang Zhao, Yuxing Li
doaj   +1 more source

Investigation of Persistent Luminescence of Strontium Aluminate in Polymer Films for Passive Daytime Radiative Cooling Application

Advanced Materials Interfaces, EarlyView.
Persistent Luminescence of doped SrAl2O4:Eu2+, Dy3+ formulated in polymer matrices is a promising solution to be integrated in building envelopes for enhancing Passive Daytime Radiative Cooling. ABSTRACT Persistent Luminescent (PersL) materials have found applications in several fields; their integration into passive daytime radiative cooling systems ...
Roberto Bondi, Francesco Marchini, Giulia Quaglia, Claudia Fabiani, Anna Laura Pisello, Loredana Latterini   +5 more
wiley   +1 more source

AI based strategic decision framework for precise e-commerce applications and ensuring consumer trust through tactical precision and decision-driven strategies

Results in Engineering
The rapid rise of counterfeit products in the global marketplace has become a serious concern, leading to significant financial losses for businesses and safety risks for consumers.
M Premkumar, S. R Ashokkumar, S Anupallavi, Dhamodharan Srinivasan, K Prema, Ajmeera Kiran   +5 more
doaj   +1 more source

Photoluminescence Reshaping via Structural Confinement and Local Density of Optical States Control in Ir(III)‐Doped Biodegradable Metasurfaces

Advanced Materials Technologies, EarlyView.
Phosphorescent biodegradable metasurface showing vibronic selection and spectral photoluminescence narrowing. Anti‐correlation between experimental LDOS and measured lifetimes. ABSTRACT Metasurfaces incorporating phosphorescent emitters offer a route to engineer radiative and vibronic processes beyond chemical design.
Vincenzo Caligiuri, Andrea Smeriglio, Svetlana Siprova, Olga Favale, Francesca Leone, Roberto Termine, Debora Policastro, Alessandra Crispini, Attilio Golemme, Nicolas Godbert, Iolinda Aiello, Antonio De Luca   +11 more
wiley   +1 more source

Indian Counterfeit Currency Detection

International Journal of Innovative Technology and Exploring Engineering, 2020
The counterfeit currency printing rate has been increased with the progress of color printing Technology. Some people are printing fake currency using some laser printers. Therefore, the counterfeit currency notes production instead of the original currency notes has been rapidly increasing.
Yepuri Spoorthi Hawanika*, Kapavarapu Sai Sreeja, Yangala Shamitha, Bandaru Yuva Priyanka, Manam Srilatha   +4 more
openaire   +1 more source

Unlocking Terahertz Steganography: Authentication of Hidden Images in Flexible Media

Advanced Materials Technologies, EarlyView.
Hidden information in multilayered devices, such as steganographic portraits, is detected and authenticated using reflection‐mode terahertz time‐domain imaging. Image reconstruction relies on a dedicated figure‐of‐merit obtained by integrating the signal intensity over the time‐window associated with the reflection from the metallic mirror backing the ...
Tiziana Ritacco, Francesca Vittorioso, Dimitrios C. Zografopoulos, Romeo Beccherelli, Walter Fuscaldo   +4 more
wiley   +1 more source

Cosmetic product object detection for differentiating authentic and counterfeit lipstick using YOLOv5

Информатика. Экономика. Управление
The circulation of counterfeit cosmetics remains a serious problem in the global market, including in Indonesia. Counterfeit cosmetic products have the potential to pose various health risks, ranging from skin irritation and allergies to long-term ...
Варгийоно Утомо , Йогасетья Суханда, Лела Нурлаэла, Энди Дхармалау   +3 more
doaj   +1 more source