Tsinghua University Achieves Excellent Results in the 18th National Challenge Cup Competition

Tsinghua Youth Science and Innovation

On October 30, the 18th Challenge Cup National College Students' Extracurricular Academic and Technological Works Competition (hereinafter referred to as "Challenge Cup") was closed at Guizhou University. Tsinghua University's team won three special prizes, two first prizes and one second prize for their six projects that were selected as finalists in the main competition. In addition, one project was awarded "Master", two projects were awarded the first prize and one project was awarded the third prize in the special competition of "Unveiling the List of Commanders". Tsinghua University was awarded the "Winner's Cup".

Wang Rui, the secretary of the Youth League Committee of the university, took a group photo with the participating students.

A total of more than 2 million college students from more than 2,000 universities across the country participated in the “Challenge Cup” this year. The entries covered machinery and control, information technology, life sciences, energy and chemical industry, mathematics and physics, development achievements, civilization and culture, beautiful China, people's livelihood and well-being, and the rule of China, totaling 10 disciplines.

Award-winning project introduction1

Grand Prize

Photoacoustic multimodal lymph node intelligent localization system

Author:

Graduate Student, Department of Electronics, Class of 2021, Liujie Gu

Gao Yize, 2021 Graduate Student, Department of Electronics

Gao Jianpan, 2020 Graduate Student, Department of Electronics

Xiaotong Zou, 2020 undergraduate student, Department of Electronics

Yue Tong, 2021 Graduate Student, Department of Electronics

Graduate Student, Class of 2021, School of Medicine Yao Mingyue

Instructor:

Ma Zeng, Associate Professor, Department of Electronics

Dr. Yizhou Bai, Associate Chief Physician, Tsinghua Changgeng Hospital

Dr. Hadi Deng, Department of Electronics

Gu Liujie is conducting the last mock defense before the final

Group photo of the participating teams

In sentinel lymph node biopsy, based on the actual clinical needs of radiation-free, high-precision localization of sentinel lymph nodes before and during surgery, the team conducts medical imaging system design and system development. This includes the design and development of hardware core components, core algorithm design and research, and the development of back-end human-machine interaction and intelligent assistance system. The team developed a set of photoacoustic-ultrasound dual-modality medical imaging equipment, which realizes a more robust, clear, and sensitive method of photoacoustic localization of radiation-free anterior sentinel lymph nodes on the basis of the original surgical workflow. It provides more possibilities for precision surgery.

Photoacoustic multimodal lymph node intelligent positioning system independently designed by the team

2

Grand Prize

Atomically Precise Construction of Post-Moore Novel Semiconductors

and high-performance device applications

author：

Lin Youjun, 2020 undergraduate student, School of Materials

Liu Fucheng, 2020 Undergraduate Student of Weiyang College

instructor：

Wang Chen, Associate Professor, School of Materials

林

Yujeun is conducting the last mock defense before the finals.

Group photo of participating teams

Layered semiconductor materials have been proposed to solve bottlenecks such as integration and performance ceiling of traditional silicon-based chips. However, they are still facing a series of problems represented by random growth position, few material choices, and insignificant device performance advantages. This project innovatively puts forward the "seed crystal self-vanishing" and "pulsed air flow" methods, the precise construction of materials at the atomic level, material position self-alignment, material super-mismatch integration, ultra-high optical responsivity detector technology breakthroughs. The innovation of the whole chain of "preparation-integration-device" in this work provides a solid foundation for the laminated materials to enter the chip industry and give full play to their advantageous performance.

Project research framework

3

Grand Prize

Why bearings have become the "heart disease" of the big country: the bottlenecks in the development of high-end bearings in China and the direction of the research and development.

China's high-end bearing development bottlenecks and direction of attack

--Survey Research on Leading Enterprises in 12 Provinces

Author:

Zhou Jun, 2020 undergraduate student, Department of Mechanical

Liu Qiwei, 2019 undergraduate student, Department of Mechanical Engineering

Li Zheng, 2021 Master Student, Department of Mechanical Engineering

Liu Qingze, Mechanical Department, Class of 2021, undergraduate student

Tian Han, 2021 Undergraduate, Department of Mechanical Engineering

Li Zihan, Bachelor's Degree, Class of 2021, Department of Mechanical Engineering

Mechanical 2020 undergraduate student Jin Chao

Mechanical Department 2020 undergraduate student Hao Dazhong

Instructor:

Timing Qu, Associate Professor, Department of Mechanical Engineering

Sheng Xuanyu, Associate Researcher, Department of Mechanical Engineering

Zhipeng Cai, Researcher, Department of Mechanical Engineering

Zhou Jun is conducting his last mock defense before the final

Group photo of the participating teams

The research was conducted by a total of 113 enterprises in 5 major bearing industry bases and 12 provinces, through field visits, in-depth interviews, case studies and other methods, to investigate the structural problems of the industry chain behind the high-end bearing "neck" problem from the perspective of the whole industry chain. Eventually, this research has sorted out the development achievements of China's bearing industry in recent years and the reasons for the "neck" of high-end products, and put forward a series of targeted policy recommendations such as the creation of a reverse talent training mechanism and the construction of an industrial interconnection ecosystem from the government's policy, enterprise development, and scientific research of universities at three levels.

The team investigated the PSM production line at Zhongtian Iron and Steel Co., Ltd.

4

First prize

Wisdom Healing Bones--Based on laser Direct Writing technology

Real-time radio frequency sensing intelligent bone monitoring system

author：

Li Qingang, 2019 undergraduate student, Department of Machinery

Jin Zehao, 2021 Undergraduate Student of Xingjian College

Xingjian College 2021 Undergraduate Gu Sicheng

instructor：

Zang Xanning, Assistant Professor, Department of Mechanics

Zhao Zhe, Associate Professor, School of Medicine

Li Qingang is conducting the last mock defense before the final

Group photo of participating teams

Every year, there are about 178 million new fracture cases worldwide. Fractures not only bring pain and inconvenience to patients, but also pose a challenge for doctors on how to effectively intervene and assist healing. Based on the development trend of polyetheretherketone, a future bone implant material, this project utilizes the laser direct writing method to produce a smart implant that can realize the integration of function, sensing, and communication, which brings a more efficient solution for postoperative fracture monitoring.

Integrated intelligent bone implant wireless passive sensing solution

5

First Prize.

"From the bottom to the UI, hackers have nothing to hide."

-- High-level security events based on behavioral flow modeling

Active Defense and Attack Precision Traceability System

author：

Peng Yihao, a 2019 undergraduate student in the School of Software

instructor：

Zhao Xibin, Associate Professor, School of Software

Wan Hai, Associate Researcher, School of Software

Peng Yihao is conducting the last mock defense before the final

Group photo of participating teams

The biggest threat facing our country in the field of network security is APT attacks. These attacks often last for a long time, have hidden attack actions, and are not easily detected, intercepted, and traced by traditional attack detection methods. This project proposes a new method for APT attack detection and traceability based on behavioral flow modeling techniques. The method models and matches the application-level normal behavioral flow with the underlying system traceability graph, and starts the defense at the attack entry point. APT attacks can be blocked in time when an attempt to bypass the front-end is detected; at the same time, the method is able to trace back to the attack's entry point in time when the underlying security event occurs.

Project workflow diagram

6

Second prize

”Livable, Industry-friendly and Beautiful" rural construction

How to benefit people's livelihood and well-being

——Based on research conducted in 100,000 villages in 30 provinces

Data Perspective and Policy Recommendations

Author:

Jinfeng Xie, 2021 Graduate Student, School of Architecture

Zhang Yijie, 2021, Graduate Student, College of Education and Research

2021 Graduate Student, School of Architecture, Su Jiajing

2021 Candidate, School of Architecture, Wu Jiaining

2022 Graduate Student, College of Architecture Wang Xiaohan

Class of 2019 Undergraduate Student, School of Civil Engineering and Water Resources Fengjun Wu

College of Architecture, Class of 2019 Undergraduate Student Susanna Liu

Class 2020 Undergraduate Student, College of Social Sciences Haicheng Wang

Instructor:

Zhang Hong, Associate Professor, College of Architecture

Zhou Zhengxu, Associate Professor, School of Architecture

Cheng Zhengyu, Deputy Secretary of Youth League Committee

Xie Jinfeng is conducting the last mock defense before the final

Group photo of participating teams

Rural construction is an important task of the national rural revitalization strategy, in the face of the problem of huge regional and individual differences in China's rural construction, this project constructed a combination of quantitative and qualitative research methods: quantitatively, it constructed a survey database on China's rural construction, which covered 30 provinces, 156 villages, and more than 4,000 rural families with more than 10,000 questionnaires; qualitatively, it carried out several rounds of field Qualitatively, we conducted several rounds of field observation and thematic research on more than 150 sample villages, and cross-validated the two. The study summarizes the effectiveness and shortcomings of China's rural construction through the lens of data, and then puts forward the policy recommendations of "macro-regional policy-making + micro-local policy-making".

Project research framework

In addition, Wang Pengcheng, a 2020 graduate student of the Department of Computer Science, Peng Haolun, a 2020 undergraduate student of the School of Artificial Intelligence at Nanjing University, Liu Yaxin, a 2022 graduate student of the Institute of Advanced Study, and Zhao Mengdie, a 2022 undergraduate student of the Weiyang Academy, were awarded the "Unveiling and Hanging the Commander-in-Chief" for their project, "Hua Xunxian: Interactive Live Broadcasting Digital Human Driven by Large Models" (Instructor: Prof. Tang Jie of the Department of Computer Science). "Specialized Tournament Ringmaster.

Peng Haolun and Liu Yaxin are defending

The project "Knowledge Graph Construction Editor - Building Knowledge Graphs Based on Sintron Learning Migration Model" (instructors: researcher Xu Bin and assistant researcher Hou Lei) won the first prize in the special competition "Unveiled and Commanded". Building Knowledge Graph Editor - Building Knowledge Graph Based on Learning Migration Model of Xintron" (instructors: Xu Bin, researcher of Department of Computer Science, and Hou Lei, assistant researcher of Department of Computer Science) won the first prize of the special competition "Unveiling the List of Commander-in-Chief".

Group photo of participating teams

The project "Prediction and Visualization of the Properties of New Crown Mutants Based on Structure Prediction and Protein Pre-training Models" by Qianqian Yang, a PhD student of the School of Medicine (Class of 2022), Jiaqi Luo, an undergraduate student of the School of Cross-Information (Class of 2019), and Zimeng Wei, a PhD student of the School of Life (Class of 2022), (supervisors: Linqi Zhang, Professor of the School of Medicine; Jianzhu Ma, Associate Researcher of the Tsinghua Institute of Intelligent Industrial Research; and Qi Zhang, Associate Researcher of the School of Medicine) won the first prize of the "Unveiling the Commander-in-Chief" special competition. The first prize of the special competition "Unveiling the List of Commanders".

The participating team successfully completed the defense

The project "Experimental Implementation of Magic State Purification in Fault-Tolerant Quantum Computing" (Supervisor: Associate Professor Ma Xiongfeng of the School of Intersection Information) by Dr. Junjie Chen of the School of Intersection Information (SII) (Class of 2022), undergraduate student Zhenyu Du of the School of Intersection Information (SII) (Class of 2019), and undergraduate student Zhaokai Pan of the School of Intersection Information (SII) (Class of 2020) was awarded the Third Prize of the Special Competition "Unveiling the Commanding Officer".

The participating team successfully completed the defense

Congratulations to the contestants and instructors of the above award-winning projects! Thank you to the teachers and students for their strong support in the preparation of the national “Challenge Cup” competition!

The "Challenge Cup" competition is co-sponsored by the Central Committee of the Communist Youth League, the China Association for Science and Technology, the Ministry of Education, the Chinese Academy of Social Sciences, the All-China Federation of Students and local governments, and jointly initiated by well-known domestic universities and news media. A national competition with orientation, demonstration and mass nature. The first "Challenge Cup" competition was held at Tsinghua University in 1989 and has been held for 17 consecutive sessions so far. The "Challenge Cup" competition has always adhered to the purpose of ”advocating science, pursuing truth, studying hard, innovating, and meeting challenges", and has played an active role in promoting the growth of young innovative talents, deepening quality education in colleges and universities, and promoting economic and social development. Tsinghua University attaches great importance to the educational value of the “Challenge Cup” competition and regards it as an important carrier for the training of top-notch innovative talents. Relying on the student's scientific and technological innovation work system, Tsinghua University organizes and guides teachers, experts and scholars, and the backbone of students to actively prepare for the competition, and provides the contestants with guidance and all-round support in the whole process.

"Challenge, is a kind of faith"

Tsinghua University will continue to optimize the innovation training system for undergraduates.

Tsinghua University will continue to optimize the innovation training system for undergraduates by taking the Challenge Cup as an opportunity to select outstanding projects and stimulate the spirit of innovation.

We will strive to cultivate more high-level innovative talents!