Results 131 to 140 of about 4,729,114 (317)
Asymmetric Iron‐Catalyzed Vicinal C(sp3)─H Diamination of Carboxylic Acids
Angewandte Chemie, EarlyView.An iron‐catalyzed vicinal α,β‐C(sp3)─H diamination of readily available carboxylic acids furnishes chiral α,β‐diamino acids in a single pot with high regio‐, diastereo‐, and enantioselectivity (up to >20:1 dr and >99% ee). ABSTRACT The direct construction of chiral 1,2‐diamines through the stereoselective functionalization of two vicinal C(sp3)─H bonds
Bing Zhou +5 more
wiley +2 more sources
SensorsIn recent years, with the application of GANs and diffusion generative network algorithms, many highly realistic synthetic images are emerging, greatly increasing the potential for misuse, and deepfakes have become a serious social concern.
Qiaoyue Man, Young-Im Cho
doaj +1 more source
A comprehensive taxonomy on multimedia video forgery detection techniques: challenges and novel trends. [PDF]
Multimed Tools Appl, 2023 El-Shafai W +3 more
europepmc +1 more source
Agribusiness, EarlyView.ABSTRACT The origin of a product, if associated with good quality, can contribute to building a positive collective reputation, leading to a potential price premium. However, it is conceivable that a producer markets a product by evoking symbols, images, words, and values typical of places other than where it was designed or produced, creating a ...
Annalisa Caloffi +2 more
wiley +1 more source
Retracted: Design of Automated Deep Learning-Based Fusion Model for Copy-Move Image Forgery Detection. [PDF]
Comput Intell Neurosci, 2023 Intelligence And Neuroscience C.
europepmc +1 more source
, 2022 Digital signatures are widely used in recent times by organisations public and private alike. Similar to fingerprints the signatures are legally binding. Another reason why they are being used is that they are easy to handle and store. The digital signatur es are utilised mainly in ecommerce websites for delivery authentication to the customers, bank ...
openaire +1 more source
Advanced Intelligent Systems, EarlyView.Visual features, numerical descriptors, and controlled textual attributes extracted from smartphone images of Chenpi are integrated by VALIANT, a tailored multimodal framework for simultaneous storage‐age classification and authenticity verification. The workflow distinguishes genuine products from suspicious standard operating procedure mimics while ...
Simon C. K. Chan +5 more
wiley +1 more source
Decoding Carbon Dot Purity by Nuclear Magnetic Resonance
Angewandte Chemie, EarlyView.NMR spectroscopy tracks the removal of molecular and oligomeric impurities in carbon dots, enabling a (semi)quantitative evaluation of their purity through integrated peak analysis. ABSTRACT Carbon dots (CDs) have attracted increasing attention in recent years and have been widely explored in many fields.
Yalei Hu, Alberto Bianco
wiley +2 more sources
MathematicsWith the rapid advancement of image processing techniques, digital image forgery detection has emerged as a critical research area in information forensics.
Haichang Yin +3 more
doaj +1 more source
SPA-Net: A Deep Learning Approach Enhanced Using a Span-Partial Structure and Attention Mechanism for Image Copy-Move Forgery Detection. [PDF]
Sensors (Basel), 2023 Zhao K +5 more
europepmc +1 more source