TOP-1

The research group will recruit several PHD and master students and 2 postdocs.

There are three requirements for doctoral and master students  enrollment: (1) Applicants should have an engineering background and have a strong interest in information technology. Applicants should have obtained a relevant bachelor's or master's degree; (2) Strong technical background, including but not limited to research experiences in BIM/GIS, Internet, digital twin, artificial intelligence, etc. Candidates with research or practical experiences in algorithms, and the development of large-scale software systems or Web/App will be preferred; (3) Highly self-motivated, good written and oral English communication skills, and independent working ability.

Postdoctoral recruitments should also meet the following two points: (1) The applicant should be under the age of 35 and have obtained a doctoral degree no more 3 years; (2) The research directions are civil engineering information technology, Marine environmental information modeling and application, data-driven knowledge discovery and application, etc. (Note: postdoctoral candidates are required to present a half-hour academic presentation, including the main research works during PHD period and future postdoctoral work plans).

If you are interested, please send your resume, transcripts and work plan to the email: hu.zhenzhong@sz.tsinghua.edu.cn. For details, please see: PHD Master Recruitment and Postdoctoral Recruitment.

TOP-2

26 November 2021, Discharge of treated Fukushima nuclear accident contaminated water: macroscopic and microscopic simulations has been published on National Science Review, which is a full affirmation of the students and teachers of the subject group who are generous and rigorous in their learning! NSR officer micro-push high-quality and efficient, reflecting China's outstanding leading journals of the super-class level! Thanks to the director of singhua University's Institute for Ocean Engineering (IOE), Zhang Jianmin's guidance and support, thanks to the editorial department and reviewers for their high evaluation!

The results of this study are of great significance for the prediction of long-term spread of pollutants, the rational response of nuclear wastewater discharge plans and the monitoring of subsequent radioactive material concentrations. In the future, we will continue to deepen our research, Further explore the long-term impact of the discharge of nuclear waste water on the whole ocean and mankind, and provide important decision support for the country and the world to deal with the nuclear wastewater crisis!

Note: National Science Review , whose impact factor in 2021 is 17.275, is the top journal in the multi-discipline domain. For more information, please see the introduction video.

2025-09-29

On September, 2025, the Essential Science Indicators (ESI) database was updated to show that in the internationally renowned journal Environmental Science & Technology (ranked in the first zone of the Chinese Academy of Sciences), The Paper "Fukushima Contaminated Water Risk Factor: Global Implications" published in IF = 11.3 was selected as an ESI Highly Cited Paper.

In response to the lack of quantification and integration in the risk assessment of the discharge of nuclear-contaminated water from Fukushima into the sea, the research team innovatively proposed the "Fukushima Nuclear-Contaminated Water Risk Factor" (FCWRF). This indicator integrates the three major risks of nuclide diffusion, bioenrichment and global seafood trade, achieving a comprehensive quantitative assessment of risks. Research shows that the combined risk will spread to six continents around the world, and its spread speed is six times faster than that driven by ocean currents. FCWRF Bridges the barriers between different fields of radionuclide risk assessment and provides a scientific basis for formulating global response strategies. Furthermore, the team has released the Fukushima risk visualization website, which dynamically displays the spatiotemporal evolution of FCWRF and makes the data available for download.

Note: ESI highly cited papers refer to academic papers published in the past ten years and ranked in the top 1% of global citations in the same discipline. They can provide references for cutting-edge research in the discipline and can be used in the scientific research evaluation system.

2025-09-20

On September 20th, marking the 45th anniversary of the founding of the China Graphics Society, the 10th China Graphics Conference officially kicked off in Wuhan, Hubei Province. This conference, themed "Intelligent Computing Symbiosis · Graph Opening a New Chapter", is hosted by the China Graphics Society. The participants, centering on the three main lines of "original software, key equipment, and scene applications", jointly explored new paths for the deep integration and innovative development of graphics and intelligent technologies.

At the conference, I was honored to be awarded the title of "Outstanding Individual Member" by the China Graphics Society. This honor is an affirmation of my active participation in the society's work and my efforts to promote the development of graphics over the past five years (2021-2025). At the same time, the second meeting of the 8th Editorial Board of the Journal of Graphics was successfully held. I was honored as a dedicated and devoted editorial board member of the Journal of Graphics in 2025 and delivered a speech as a representative of the awardees. These honors are not only encouragement but also motivation.

This conference lasts for three days and has organized over 40 academic activities, covering various aspects such as cutting-edge forums, technical discussions, and popular science lectures, providing a high-quality platform for communication and cooperation for experts and scholars in the field of graphics.

2025-09-12

Congratulations to Liu Yi on successfully defending his doctoral dissertation at Tsinghua University!

Liu Yi's paper is titled "Digital Twin-based Multi-scale Marine Environment Simulation and Offshore Engineering Structure Analysis". This research focuses on the problems such as the difficulty in integrating multi-source heterogeneous data, complex model coupling, low computational efficiency, and the lack of collaborative tools in Marine environment and engineering structure analysis. It takes digital twin technology as the core A theoretical and methodological system covering "environmental simulation - structural analysis - platform integration" has been constructed. Based on the theory of complex systems, a digital twin framework coupling cross-scale environmental and structural sub-models was proposed. The coarse-grained Navier-Stokes simulation and large-scale Marine environment calculation methods were developed. A multi-scale simulation model for pollutant diffusion was established, and its effectiveness was verified in the simulation of the discharge of nuclear-contaminated water from Fukushima. In terms of structural analysis, an efficient sparse matrix solution algorithm and a dynamic response order reduction model were proposed. By combining monitoring data with neural networks, mechanical state inversion and stress prediction were achieved (with an accuracy rate of 87.5%). Ultimately, an independent integrated simulation platform was developed, achieving a deep integration of multi-scale environments and structures, providing key technical support for the full life cycle management of Marine engineering and the development of domestic industrial software.

Note: During his study period, Liu Yi published a total of 10 academic papers (4 of which were indexed by SCI and published in journals such as National Science Review, Ocean Engineering, and Environmental Science & Technology). Five authorized invention patents and two software Copyrights have been obtained, and the achievements have received unanimous praise from experts.