Changqing Zhu

Title: Changqing Zhu: Innovator in Watermarking and Wastewater Treatment Technologies

Introduction

Changqing Zhu is a prominent inventor based in Nanjing, China. He has made significant contributions to the fields of watermarking information security and wastewater treatment technologies. With a total of six patents to his name, Zhu's work demonstrates a commitment to innovation and problem-solving in critical areas.

Latest Patents

Zhu's latest patents include a zero-watermarking method and device for Building Information Modeling (BIM) data. This invention addresses the limitations of existing zero-watermarking methods that are vulnerable to primitive attacks. By utilizing the vertical stability of a model, Zhu constructs a mapping relationship between primitive clusters and watermarking bits. He calculates norms of primitives within these clusters and uses the positivity and negativity of norm skewness measurements as eigenvalues to create a binary sequence. This sequence undergoes an XOR process with an original watermarking sequence to establish a robust zero-watermarking method for BIM data. Experimental results have shown that this method possesses uniqueness, robustness, and security.

Another notable patent involves a device and method for controlling the diffusion of microplastics (MPs) carried with antibiotic resistance genes (ARGs) in wastewater treatment systems. This invention includes a water collection tank, a collection assembly for gathering MPs, and a treatment assembly for removing these contaminants. The method effectively sorts MPs using air flotation and electric separation principles, showcasing a simple yet efficient structure that facilitates easy installation.

Career Highlights

Changqing Zhu has worked at several esteemed institutions, including Nanjing Normal University and the Nanjing Institute of Environmental Sciences. His experience in these organizations has allowed him to develop and refine his innovative technologies.

Collaborations

Zhu has collaborated with notable colleagues such as Na Ren and Qianwen Zhou, contributing to the advancement of his research and inventions.

Conclusion

Changqing Zhu's innovative work in watermarking and wastewater treatment technologies highlights his dedication to addressing contemporary challenges. His patents reflect a blend of creativity and technical expertise that continues to impact these vital fields.