A5055838771- Chaos-based Image/Signal Encryption
- Advanced Steganography and Watermarking Techniques
- Ammonia Synthesis and Nitrogen Reduction
- Advanced Photocatalysis Techniques
- Cellular Automata and Applications
- Catalytic Processes in Materials Science
- Mathematical Dynamics and Fractals
- Fractal and DNA sequence analysis
- Digital Media Forensic Detection
- Optical Network Technologies
- Advanced Vision and Imaging
- Video Surveillance and Tracking Methods
- DNA and Biological Computing
- ZnO doping and properties
- Industrial Vision Systems and Defect Detection
- Fire Detection and Safety Systems
- Video Coding and Compression Technologies
- Caching and Content Delivery
- Structural Health Monitoring Techniques
- Gas Sensing Nanomaterials and Sensors
- Energy Efficient Wireless Sensor Networks
- Advanced Photonic Communication Systems
- Indoor and Outdoor Localization Technologies
- Advanced Frequency and Time Standards
- Photonic and Optical Devices
National Yang Ming Chiao Tung University
2015-2025
Hong Kong Baptist University
2025
University of Electronic Science and Technology of China
2020-2024
Hangzhou First People's Hospital
2024
Westlake University
2024
Office of the Governor
2023
First Affiliated Hospital of Wenzhou Medical University
2023
Fudan University
2023
National Kaohsiung University of Science and Technology
2023
Wenzhou Medical University
2023
Fe 2 O 3 /CP acts as an electrocatalyst enabling efficient NH generation via NO reduction, capable of attaining a faradaic efficiency 86.73% and yield 78.02 μmol h −1 cm −2 . The -based Zn–NO battery offers power density 1.18 mW
Recently, an improved color image cipher (ICIC-DNA) based on multiple deoxyribonucleic acid (DNA) sequence operations with DNA synthetic and chaos was proposed. ICIC-DNA features the use of chaotic systems diverse operations. However, after our careful cryptanalysis, we found that has several fatal security flaws. First, despite systems, corresponding encryption sequences are independent plaintext, such equivalent keys exist. Second, operation is essentially a 2-bit data substitution...
Recently, a bit-level image encryption algorithm based on chaotic maps (BCIEA) has been presented. BCIEA consists of diffusion and confusion, its security performance mainly relies the dynamic mechanisms introduced during respectively. However, after careful cryptanalysis, we found that fatal issues. Although formally employs complex chaining operations, there is defect sequences can be used as an equivalent key. In addition, by analyzing it mechanism adopted obvious statistical...
A Ni 2 P nanoarray on carbon paper enables NH 3 synthesis via NO reduction (NH yield: 33.47 μmol h −1 cm −2 ; faradaic efficiency: 76.9%). P-based Zn–NO battery shows a power density of 1.53 mW with an yield 62.05 μg mg cat. .
Aiming at the problem of insufficient security image encryption technology, a secure algorithm using chaos-based block permutation and weighted bit planes chain diffusion is proposed, which based on variant structure classical permutation-diffusion. During phase, operations dividing an into sub-block, scrambling, rotation inversion, negative-positive transformation, color component shuffling are performed sequentially with chaotic sequences plaintext association. In stage, different...
This paper proposes a high-quality color image compression-encryption scheme based on chaos and block permutation. In this scheme, the digital is first converted sampled in YCbCr gamut, then coefficients sub-blocks are extracted for compression coding after 8×8 post-blocking discrete cosine transformation (DCT) to frequency domain. Then, an encryption algorithm using chaos-based permutation two-round row-column diffusion designed compressed domain information. terms of security, module...
This paper proposes a video security transmission enhancement algorithm based on block permutation and dynamic multiplexing sequences encryption 4D autonomous hyperchaotic system. Firstly, we employ the diffusion confusion module, which is chaotic sequences, to encrypt plaintext obtain ciphertext. Subsequently, hash value of this round's ciphertext utilized generate key, produced by sequence round after mathematical processing. Then, key used confuse N-th multiplexed sequence, next obtained....
Transition-metal (oxy)hydroxides with an abundance of redox metal sites are important for the development electrochromic devices, rechargeable metal–air batteries, pseudo-capacitors, and industrial electrolyzers. The robust charging reversibility ensures long-term durability devices but remains unachieved usually ignored. Here, we use in situ UV–vis Raman spectroscopies to track states a nickel hydroxide Ni(OH)2 model catalyst oxygen evolution reaction (OER) during its lifetime strong...
Abstract Electrochemical reduction of NO not only offers an attractive alternative to the Haber–Bosch process for ambient NH 3 production but mitigates human‐caused unbalance nitrogen cycle. Herein, we report that MoS 2 nanosheet on graphite felt (MoS /GF) acts as efficient and robust 3D electrocatalyst NO‐to‐NH conversion. In acidic electrolyte, such /GF attains a maximal Faradaic efficiency 76.6 % large yield up 99.6 μmol cm −2 h −1 . Using nanosheet‐loaded carbon paper cathode,...
With the aim of tackling insufficient security in chaotic encryption algorithm for digital images Optical Access Network, a color image scheme combining non-degenerate discrete hyperchaotic system and deoxyribonucleic acid (DNA) dynamic encoding is proposed. First, new constructed with all positive Lyapunov more complex characteristics. Furthermore, key sequence based on generated using plaintext correlation to achieve effect secret key. Next, binary bit-planes permutation performed one...
This paper proposes a dynamic RNA-encoded color image encryption scheme based on chain feedback structure. Firstly, the pure is decomposed into red, green, and blue components, then chaotic sequence plaintext association introduced to encrypt red component. Secondly, intermediate ciphertext obtained by diffusion after bit-level permutation, RNA encoding, operation rules, decoding. Finally, enhance security of cryptosystem, green components are repeatedly encrypted using mechanism associated...
In the application and promotion of UAV in future, remote sensing image information is transmitted frequently, its security issues will not be ignored. Aiming at privacy problem portrait images, this paper proposes a face protection technology scheme based on chaos DNA cryptography. Firstly, edge recognition detection used to identify information, corresponding matrix selected as object selective encryption. Then, hash eigenvalues encrypted are extracted, plaintext-associated chaotic...
Abstract Most of the existing spatial domain image encryption techniques suffer from difficulty resisting cryptographic attacks. For this reason, paper proposes a frequency-domain based digital scheme by combining Integer Wavelet Transform (IWT), three-dimensional S-box and chaotic system. First, plaintext is decomposed into different frequency subbands IWT to map domain. Second, hash value selected as dynamic key, pseudo-random sequences with associations are generated, which used for each...
The issue of information security in photonics environment has attracted more and attention, especially when the secure communication optical digital images become a research hotspot. In this paper, we propose hybrid encryption scheme for color frequency spatial domains based on double random transform memristor hyperchaotic system. Firstly, decompose image into RGB channels then perform fast fourier (FFT) to from domain domain. Secondly, two-phase masks are generated using system, Fresnel...
In order to further improve the information effectiveness of digital image transmission, an image-encryption algorithm based on 2D-Logistic-adjusted-Sine map (2D-LASM) and Discrete Wavelet Transform (DWT) is proposed. First, a dynamic key with plaintext correlation generated using Message-Digest Algorithm 5 (MD5), 2D-LASM chaos obtain chaotic pseudo-random sequence. Secondly, we perform DWT from time domain frequency decompose low-frequency (LF) coefficient high-frequency (HF) coefficient....