2023-11-26

Research group paper Discharge of treated Fukushima nuclear accident contaminated water: macroscopic and microscopic simulations selected in the third Shenzhen Excellent Scientific and Technological Academic paper Achievement Award!

This paper establishes the diffusion model of radioactive materials from the macro and micro perspectives, realizes the long-term simulation of the Fukushima nuclear contaminated water discharge plan adopted by the Japanese government, and reveals the mechanism of the diffusion of nuclear elements with ocean currents after discharge.

We continue to pay attention to the issue of Fukushima nuclear contaminated water discharge into the sea, and will continue to study the environmental ecological and human health risks brought by it!

2023-11-14

The open access paper "Development of a micro-in-meso-scale framework for simulating pollutant dispersion and wind environment in building groups" , published in Elsevier, has been selected as an open project for the UN Sustainable Development Goals (SDGs) in recognition of its contribution to tackling some of the world's toughest challenges.

In this paper, a micro-in-meso-scale framework is proposed for the simulation of building wind environment and pollutant diffusion. The findings are considered by the SDGs to have far-reaching implications for achieving its third goal (SDG3) - ensure healthy lives and promote well-being for all at all ages.

Thanks to Elsevier for supporting the research of the research group and providing the opportunity of open access platform. This open form of scientific exchange makes research more widely available and beneficial, helping to accelerate the realization of the vision of the global Sustainable Development Goals. The group will work to promote the development of open science and encourage peers to actively share their work to promote scientific progress and solve global challenges.

Note: The SDGs are a set of 17 long-term development goals developed by the UN to address major challenges such as poverty, hunger, inequality and climate change.

2023-11-03

It is my honor to be invited to participate in the "Construction Technology" wechat public account [Dialogue] column, and to answer relevant questions. At present, the views I share have been pushed on the public platform of the journal, see the link for details.

In the course of answering the questions, I highlighted the importance of civil engineering and firmly believed that the civil construction industry has never been in the sunset, on the contrary, it has been one of the pillars of national prosperity since ancient times. Whether it is urban construction, transport infrastructure or environmental protection, civil engineering plays a key role. At the same time, I highlighted the impact of technological progress and social development on civil engineering, and pointed out the innovation and evolution in the field. Emerging technologies, innovative methods and cutting-edge concepts have opened up new forms of business and supplies in terms of building structures and infrastructure, bringing a new experience to urban life. Obviously, it will also require a large number of people with interdisciplinary knowledge to drive this change.

2023-11-02

"Research on Assessment of Smart Maturity for Construction Stage of Construction Industry" has been published in the "Construction Technology" on CNKI.

The application of a large amount of information technology has prompted the construction industry, especially in the construction stage, to enter a period of smart development. However, the prerequisite for enterprises within the industry to achieve high-speed smart development is to clarify their own current smart maturity. The study established a framework of smart maturity assessment systems for various segments in the construction stage, detailing the components and operational process of five steps, including selecting maturity assessment methods, developing assessment indicators, presenting assessment results, verifying the assessment system, and discussing strategies for improving smart maturity. Using this as the master template, a smart maturity assessment system for construction management has been constructed and the feasibility, accuracy, and specific usage methods of the smart maturity assessment system framework have been further demonstrated through case analysis. In summary, the above framework can help accurately assess the smart maturity of each segment in the construction stage, and formulate feasible smart development plans, providing fundamental support for the smart development of each segment in the construction stage and the overall construction industry.

Note: The first author of this paper is Wang Miao, senior engineer of China Road & Bridge Corporation. I am the corresponding author. The authors also include Lin Chao, master's student, and Guo Wenjun, Beijing Yunjiaxin Technology Co., LTD. The research results were supported by the National Key Research and Development Program of China and Guangdong Basic and Applied Basic Research Foundation.

2023-10-31

"Ontology-based modeling and application of highway engineering safety knowledge" has been published in the Journal of Tsinghua University(Science and Technology) on CNKI.

In view of the common knowledge gap in engineering salety management, this paperaims to propose an ontology-based framework to achieve domain knowledge modeling and updating. Using the highway engineering field as an example, this paper demonstrates how safety knowledge can be automatically extracted from industry-standard text data to facilitate the construction of a domain KG. Subsequently, the safety management scenarios are developed based on the building information model (BIM), and the auxiliary role of intelligent knowledge in safety management is demonstrated to verily the effectiveness of the engineering application of the developed KG. This paper used the ontology-guided domaln knowledge extraction method to construct the domain KG and proposed a knowledg network-guided method to update the ontology. Specifically, a layered knowledge system with multiple dimensions was summarized as the ontology layer based on the management approach and the established standard specifications withinhighway engineering, Following the guidance of the ontology layer, a structured knowledge network acting as the data layer was extracted from massive text materials by developing a series of knowledge extraction procedures, Consequently, a knowledge-flowing method from the data layer to the ontology layer was proposed. Three categories of methods based on the essence and composition of entities and the clustering of the entity's core words were summarized to realize the automation updating of the ontology layer.Finally, combined with the developed highway safety information retrieval and application system , this paper demonstrated the organization and application of the constructed domain KG, thus verifying the effect of introducing ontology in the organization and deployment of knowledge. The developed ontology of highway engineering salety knowledge was featured as a layered knowledge system with seven levels and 390 nodes connected with ~ 300 000 valid entity nodes in the data layer, facilitating the creation and integration of the KG's logical structures. The proposed method for updating the domain ontology aided by over 1000 technical terms was demonstrated to be effective, with an increment of 51.5% in the expansion of the nodes to the ontology. The designed method of linking the ontology-guided domain KG with the BIM was validated for its feasibility through practical implementation within a real highway engineering salety management system, displaying the positive impact of ontology's guidance in the organization and expansion of knowledge. This paper concentrates on the domain of highway engineering safety and presents a comprehensive paradigm for constructing, updating, and applying a domain KG to demonstrate methodological innovation in ontology updating. The results extend the application scope and technical approaches of KG technology, thereby enhancing information technology level in engineering safety management. Moreover, the findings of this research can be used for BIM evaluation and safety guidance in highway engineering construction projects, thereby advancing the level of information technology in construction safety management.

Note: The first author of this paper is Liu Guangyu, senior engineer of Guangdong Road and Bridge Construction and Development Co., LTD. I am the corresponding author. The authors also include doctoral student An Peng and research group member Wu Zhen. The research results have been funded by the national key research and development program of China.