Results 71 to 80 of about 12,018,164 (252)
MathematicsThis paper proposes a highly secure image encryption technique based on chaotic synchronization. Firstly, through the design of a synchronization controller, we ensure that the master–slave chaotic extremum-coded random number generators (ECRNGs ...
Shunsuke Araki, Ji-Han Wu, Jun-Juh Yan
doaj +1 more source
Image compression and encryption based on wavelet transform and chaos [PDF]
Компьютерная оптика, 2019 With the rapid development of network technology, more and more digital images are transmitted on the network, and gradually become one important means for people to access the information.
Haibo Gao , Wenjuan Zeng
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The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation
FEBS Letters, EarlyView.Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge +6 more
wiley +1 more source
Encryption process for the proposed image encryption scheme.
Encryption process for the proposed image encryption scheme.
Atta ur Rehman Khan (18405640) +4 more
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Image encryption in wavelet domain based on chaotic maps
, 2011 It is commonly known that chaotic systems are extremely sensitive to initial parameters and these systems can be very helpful in the field of cryptography from this reason. Logistic maps of deterministic chaos can be used for the generation of encryption
Giesl, Jiří +2 more
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FEBS Letters, EarlyView.Heterodimeric amino acid transporters consist of SLC7 and SLC3 family proteins arranged in a conserved structural organization. They regulate nutrient transport across cell membranes, supporting essential cellular functions. These transporters also contribute to xenobiotic/drug uptake and distribution.
Mariafrancesca Scalise +5 more
wiley +1 more source
Image Encryption Algorithm Combining Chaotic Image Encryption and Convolutional Neural Network
, 2023 With the rapid development of information technology, the security of images has emerged as a significant area of research. This study presents an algorithm that integrates chaotic image encryption and a convolutional neural network (CNN) to enhance ...
Chong Fu +7 more
core +1 more source
FEBS Letters, EarlyView.Transient oligomers formed by intrinsically disordered proteins may be ‘invisible’ to direct detection yet remain accessible to solution NMR through equilibrium‐exchange measurements and pressure‐jump experiments. Complementary methods report on mass, stoichiometry, selected distance distributions, morphology, and internal packing.
Martin D. Gelenter, Ad Bax
wiley +1 more source
Cryptanalysis of optical security systems with significant output images [PDF]
, 2007 The security of the encryption and verification techniques with significant output images is examined by a known-plaintext attack. We introduce an iterative phase-retrieval algorithm based on multiple intensity measurements to heuristically estimate the ...
Guohai Situ +7 more
core +1 more source
DNA ligase LigE increases bacterial transformation with damaged extracellular DNA
FEBS Letters, EarlyView.The DNA ligase LigE from the naturally competent Gram‐negative bacterium Neisseria gonorrhoaea increases transformation with cut extracellular DNA. This process is ATP‐dependent and relies on the catalytic activity of LigE; it also requires that LigE contains an intact periplasmic localisation sequence, indicating that ligE functions in the periplasm ...
Jolyn Pan +4 more
wiley +1 more source