A5032142926- Advanced machining processes and optimization
- Manufacturing Process and Optimization
- Chaos-based Image/Signal Encryption
- Advanced Surface Polishing Techniques
- DNA and Biological Computing
- Fractal and DNA sequence analysis
- Advanced Measurement and Metrology Techniques
- Wireless Communication Security Techniques
University of Electronic Science and Technology of China
2023
University of Hong Kong
2008
Nanchang Hangkong University
2008
Nanchang Institute of Technology
2006
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 Control of workpiece machining error (WME) is a key concern in the design fixture system. In this paper, source errors, which are categorized into workpiece-fixture geometric default and compliance, systematically investigated to reveal their effects upon WME. The underlying mechanism that errors lead position (WPE), elastic deformations (WED), inconsistent datum (IDE), all them will contribute together Here, IDE refers dimension deviation processing from locating once two...
Whether in traditional machining fields or modern flexible manufacturing systems, the workpiece-holding is first issue of operation to be confronted. To ensure accuracy specific dimensions, it necessary correctly determine position workpiece related cutting tool and immobilize this correct during entire operation. In paper, a new dimension-based fixture design approach developed for time partitioned into two main parts study. Firstly, based on velocity composition law particle movement,...
In the high-speed machining process of aeronautical monolithic component, release residual stresses is a crucial factor deformations with material removal 7075 aluminum alloy thick plates. Therefore, investigation on evolution mechanism deformation stress for quality control. It vital to achieving high-efficiency and precise process. this work, bending theory employed formalize mechanical model deformation, which influenced by materials. The finite element method used calculate unit...