Harbin Institute Of Technology Research Articles

Preface

Nader Asnafi Editor, Proceedings of the Fourth International Conference on Mechanical, Electric and Industrial Engineering (MEIE 2021) and Conference Chair Professor, Örebro University, Örebro, SwedenEmail: Nader.Asnafi@oru.seThe Fourth International Conference on Mechanical, Electric and Industrial Engineering (MEIE 2021) was held successfully on 22-24 May 2021 in Kunming, China. This year’s conference was held as a hybrid conference to avoid international travelling during the COVID19 situation. Like previous years, a large number of researchers and application developers from the international academia and industry addressed both basic research and the societal/industrial-technological needs within mechanical, electric and industrial engineering.It attracted over 80 participants from 5 different countries and regions. Conference program was divided into 3 sessions: keynote speeches, oral presentations and poster presentations. We greatly appreciate Asso. Prof. Tangbin Xia from Shanghai Jiao Tong University, who presided over the conference, and all participants for attending and sharing!We are honored to invite 7 experts to give the impressive keynote speeches: Prof. Nader Asnafi from Örebro University, Sweden; Asso. Prof. Tangbin Xia from Shanghai Jiao Tong University, China; Prof. Ji Wang from Ningbo University, China; Prof. Alam Md Mahbub from Harbin Institute of Technology, Shenzhen, China; Asso. Prof. Xiaogang Liu from Wuhan University of Technology, China; Prof. Weidong Zhu from University of Maryland, Baltimore County, USA and Prof. Sivakumar Rajagopal from Vellore Institute of Technology, India.Following the keynote speakers, 21 scholars made oral presentations respectively in the afternoon. And 7 poster presentations came after it. Reporters shared their latest research findings and audiences were actively involved in discussions.The proceedings of this conference comprise 120 accepted contributions from 230 submissions. We would like to express our gratitude to the reviewers of these manuscripts, who provided rational, constructive comments & suggestions to the authors. We were extremely grateful as the organizers and technical program committee who make this conference to an unforgettable experience for all participants. And extend our sincere thanks to the authors for their valuable contributions. Finally, our sincere gratitude goes also to the IOP Publishing editors and managers for their helpful cooperation during the preparation of the conference proceedings.On behalf of the Organizing Committee of MEIE 2021.Technical Program Committee are available in the pdf

Irradiation behavior and recovery effect of ferroelectric properties of PZT thin films* *Project supported by the National Natural Science Foundation of China (Grant No. 51802056), the Science Foundation of the National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, and the Key Laboratory of Micro-systems and Micro-structures Manufacturing (Harbin Institute of Technology), Ministry of Education, China.

Lead zirconate titanate piezoelectric ceramics have important applications in space and aerospace technology, but the effect and physical mechanism of charged particle radiation on their performance yet to be clarified. In this study, we characterized PbZr0.52Ti0.48O3 (PZT) thin films, and changes in the ferroelectric properties of the films before and after electron and proton irradiation were investigated. The natural and heat treatment recoverability of the ferroelectric properties were studied, and the damages and mechanisms of different types of radiation in PZT films were also investigated. The results show that, in addition to ionization damages, electron irradiation causes certain structural damage on the PZT film, and the large structural damage caused by proton irradiation reduces drastically the ferroelectricity of the PZT film.

An Evaluation of Chinese Human-Computer Dialogue Technology

Abstract There is a growing interest in developing human-computer dialogue systems which is an important branch in the field of artificial intelligence (AI). However, the evaluation of large-scale Chinese human-computer dialogues is still a challenging task. To attract more attention to dialogue evaluation work, we held the fourth Evaluation of Chinese Human-Computer Dialogue Technology (ECDT). It consists of few-shot learning in spoken language understanding (SLU) (Task 1) and knowledge-driven multi-turn dialogue competition (Task 2), the data sets of which are provided by Harbin Institute of Technology and Tsinghua University. In this paper, we will introduce the evaluation tasks and data sets in detail. Meanwhile, we will also analyze the evaluation results and the existing problems in the evaluation.

An 18.3 MJ charging and discharging pulsed power supply system for the Space Plasma Environment Research Facility (SPERF): The subsystem for the magnetopause shape control coils.

The Space Plasma Environment Research Facility currently under construction at the Harbin Institute of Technology in China uses four magnetosheath coils (flux cores) and a dipole coil to generate the magnetic field required for the study on the magnetopause magnetic reconnection. Two groups of magnetopause shape control coils (labeled CK coils) are used to slightly adjust the magnetic field distribution on the magnetopause. A capacitive pulsed power supply (PPS) system with a modular design is developed to excite CK coils. The PPS system consists of six sets of PPS with the same principle and structure, which are used to excite six sub-coils of the CK coils, respectively. Each set of PPS consists of ten modules and one local controller, and each module consists of a charger and discharge unit. Each set of PPS can provide a pulsed current of no less than 400 kA for the corresponding sub-coil at 0.11ms when the charging voltage is 20 kV, and the duration of the pulsed current from the peak to 10% of the peak is no more than 0.6ms. The detailed design of the PPS is discussed in this paper, and the discharge test of the PPS is carried out to verify the design of the PPS. Because there are acquisition and control devices in the discharge unit, the electromagnetic interference immunity design is also discussed to ensure the normal operation of the PPS.

Preface

The 2021 International Conference on Sensing Technology and Applications (ICSTA 2021) was held on April 23-25, 2021 as a virtual conference due to the growing concerns over the coronavirus outbreak (COVID-19), and in order to protect the well-being of our attendees, partners, and staff as our number one priority. The meeting focused on the research fields of “Sensing Technology” and “Sensing Applications”. The aim is to provide a common forum for researchers, scientists, engineers and practitioners throughout the world to present their latest research findings, ideas, developments and applications in the area of sensing technology, to explore the development path of ecological civilization construction, and to cope with new opportunities and challenges.This scientific event brings together more than 50 national and international researchers in sensing technology and applications. On top of the local participants coming from different national universities, international participants are also registered from different countries, namely USA, Vietnam, India and Egypt. During the conference, the conference model was divided into three sessions, including oral presentations, keynote speeches, and online Q&A discussion. In the first part, some scholars, whose submissions were selected as the excellent papers, were given about 5-10 minutes to perform their oral presentations one by one. Then in the second part, keynote speakers were each allocated 30-45 minutes to hold their speeches.In the second part, we invited six professors as our keynote speakers. Prof. Bingguo Liu, from Harbin Institute of Technology, China, delivered a wonderful speech: On-line Vision Inspection technology for high-power laser drivers of inertial confinement fusion. And then we had Prof. Chengying Yang, from University of Taipei, Dept. of Computer Science. He shared a speech on his specialty related to Smartphone Based Tracking System Applied within the Classroom. Prof. Zhi Gao, from Wuhan University, China. His speech title was Vision for Intelligent systems and Intelligent Systems based Vision. In this talk, advanced techniques of these two aspects were introduced, including bio-inspired motion estimation, localization in challenging environments, and target detection. Prof. Yang Chai is an Associate Professor at the Hong Kong Polytechnic University. He shared a speech: Near-sensor and in-sensor computing for neuromorphic machine vision. Prof. Qingyang Wei, from University of Science and Technology, Beijing. He performed a thought-provoking speech: Lonizing Radiation Detection using CMOS Sensors. The last keynote speakers, Prof. Xinhua Tang, from Southeast University, Nanjing, China. He presented an insightful speech: Information fusion technologies inside GNSS-related navigation system. Their insightful speeches had triggered heated discussion in the third session of the conference. Every participant praised this conference for disseminating useful and insightful knowledge.The proceedings are a compilation of the accepted papers and represent an interesting outcome of the conference. Topics include but are not limited to the following areas: Sensing Theory and New Approach, Sensors and Actuators, Chemical & Bio Sensor System and more related topics. All the papers have been through rigorous review and process to meet the requirements of International publication standard.We would like to acknowledge all of those who supported ICSTA 2021. The help and contribution of each individual and institution was instrumental in the success of the conference. In particular, we would like to thank the organizing committee for its valuable inputs in shaping the conference program and reviewing the submitted papers.Committee of ICSTA 2021Committee member, General Conference Chair, Program committee, International technical committee are available in tha pdf

The 1st International Project Competition for Structural Health Monitoring (IPC-SHM, 2020): A summary and benchmark problem

To promote the development of structural health monitoring around the world, the 1st International Project Competition for Structural Health Monitoring (IPC-SHM, 2020) was initiated and organized in 2020 by the Asia-Pacific Network of Centers for Research in Smart Structures Technology, Harbin Institute of Technology, the University of Illinois at Urbana-Champaign, and four leading companies in the application of structural health monitoring technology. The goal of this competition was to attract more young scholars to engage in the study of structural health monitoring, encouraging them to provide creative and effective solutions for full-scale applications. Recognizing the recent advent and importance of artificial intelligence in structural health monitoring, three competition projects were set up with the data from full-scale bridges: (1) image-based identification of fatigue cracks in bridge girders, (2) data anomaly detection for structural health monitoring, and (3) condition assessment of stay cables using cable tension data. Three corresponding data sets were released at http://www.schm.org.cn and http://sstl.cee.illinois.edu/ipc-shm2020. Participants were required to be full-time undergraduate students, M.S. students, Ph.D. students, or young scholars within 3 years after obtaining their Ph.D. Both individual and teams (each team had no more than five individuals) could compete. Submissions for the competition included a 10- to 15-page technical paper, a 10-min presentation video with PowerPoint slides, and commented code. The organizing committee then conducted the validation, review, and evaluation. A total of 330 participants in 112 teams from 70 universities and institutions in 12 countries registered for the competition, resulting in 75 papers from 56 teams from 57 different affiliations finally being submitted. Of those submitted, 31, 30, and 14 papers were for Projects 1, 2, and 3, respectively. After completion of the review by the organization committee and awards committee, the top 10, 10, and 5 teams were selected as the prize winners for the three competition projects.

Study of a 560-mm-long stripline kicker for HIT 10 MeV electron accelerator

A stripline kicker is required for Harbin Institute of Technology (HIT) 10 MeV electron accelerator to scan electrons horizontally in two directions, and the maximum deflecting angle is 65 mrad. In this study, a 560-mm-long stripline kicker was designed to achieve good field uniformity and odd mode impedance matching. In order to reduce power reflections and meet field uniformity requirement, we optimized the cross section of the kicker main body. Design and optimization of the stripline kicker were finished by CST. The field uniformity is 2% in the 60 mm (x) × 80 mm (y) region, as required. Considering impedance matching and manufacturing, the transmission odd mode impedance was finally chosen to 45 Ω, which indicated a reflecting loss of less than −50 dB below 1 MHz. The maximum field is less than 7 MV/m with a maximum pulse voltage of ±22 kV between the two electrodes when the electrons pass through the kicker. The physical design of the stripline kicker has been finished, and the simulation results satisfied the requirements.

An 18.3 MJ charging and discharging pulsed power supply system for the Space Plasma Environment Research Facility (SPERF): The subsystem for the dipole coil

The Space Plasma Environment Research Facility (SPERF) currently under construction at the Harbin Institute of Technology in China is a user facility dedicated to studying space plasma physics on the ground. A coil system of the SPERF consists of seven types of coils, which are used to generate the magnetic fields and plasma required by the physical experiments. A dipole coil of the coil system works with four magnetosheath coils (flux cores) to build the magnetic fields resembling that of the Earth and solar wind. A capacitor-based pulsed power supply (PPS) system with a modular design is developed to excite the dipole coil to generate a magnetosphere-like magnetic field required by the magnetopause magnetic reconnection experiment. The PPS of the dipole coil has a longer pulse duration and more energy than that of other coils in the coil system, it delivers a pulsed current with a peak of more than 18 kA, and the duration of the current is not less than 95% of the peak over 10ms to the dipole coil when the charging voltage is not less than 20 kV. The detailed design of the PPS is discussed in this paper, and the discharge test of the PPS is carried out to verify the design of the PPS.

Effect of mechanical anchorage on the bond performance of double overlapped CFRP-to-steel joints

Mechanical anchorage devices have the potential to efficiently improve the bond behavior of Carbon Fiber-Reinforced Polymers (CFRP) Externally Bonded (EB) onto steel with an adhesive. Existing relevant studies, however, have been very limited. Against this background, experimental and numerical studies on the double overlapped CFRP-to-steel bonded joints with an end mechanical anchorage were carried out in the present study. Two types of CFRP laminates (i.e., SIKA CFRP and the other type made in Harbin Institute of Technology – HIT) were used in the bond tests, with or without end mechanical anchorage devices. The test results showed that the end mechanical anchorage had marginal effect on the bond-slip relationship between EB CFRP and steel as well as debonding load, but could increase the ultimate load. It was also found that CFRP laminate from HIT had a better bond performance than that from SIKA, in terms of both debonding load and ultimate load. Using ABAQUS, Finite Element (FE) model was established on such bonded joints and the accuracy was verified with test results. The verified FE model was adopted in a parametric study to further clarify the effect of key parameters on the bond behavior of such bonded joints.

Preface

We are glad to introduce you that the 2021 International Conference on Energy Engineering, New Energy Materials and Devices (NEMD 2021) was carried out in the form of virtual conference on January 15-17, 2021. Due to the impact of COVID-19 and travel restrictions, NEMD 2021 was held via online collaboration tool, Zoom, which is different from the traditional way. NEMD 2021 aimed to provide a flexible platform for experts and scholars in the field of energy engineering, new energy materials and devices to disseminate the latest research achievements and advanced technologies, as well as to promote the cooperation between each other.Firstly, we were honored to invite Prof. Hong Qi, Harbin Institute of Technology, China as conference chair and keynote speaker. Prof.Qi is the director of Department of refrigeration and thermal control in Harbin Institute of Technology, and deputy director of Key Laboratory of aerospace thermophysics, Ministry of industry and information technology. Main research fields: thermal radiation transmission and coupled heat transfer, inverse problem and intelligent optimization algorithm, microalgae new energy utilization, near infrared optical imaging, high temperature flame temperature reconstruction, etc. During the conference, the conference model was divided into four sessions, including keynote speeches, invited speeches, oral presentations and online Q&A discussion.In the keynote speeches session, keynote speakers were each allocated 30-40 minutes to hold their speeches. We were honored to invite four distinguished experts as keynote speakers to present their insightful speeches. Prof. Hong Qi from Harbin Institute of Technology, China, made a speech about Integrated technology of biological photothermal precise diagnosis and treatment based on multifunctional nanoparticles. Prof. Roger Ruan from University of Minnesota, USA, shared his study on Catalytic microwave assisted pyrolysis of solid waste for fuels, energy and chemicals production. Prof. Gangtao Liang from Dalian University of Technology, China and his speech title is: Microscale Heat Dissipation Surface for High-Heat-Flux Cooling. Prof. Jun He from University of Nottingham Ningbo China, China, held a speech on the topic of Cost-effective Non-precious Metal Catalysts for Low-temperature Formaldehyde Decomposition.In the invited speeches session, invited speakers were each allocated 20-30 minutes to hold their speeches. We were pleased to invite two excellent experts as keynote speakers to present their insightful speeches. Prof. Wenbin Yang from Southwest University of Science and Technology, China, his speech is about Design and preparation of phase change microcapsules and nanocapsules. Prof. Xijun Hu from The Hong Kong University of Science and Technology, China, made a speech about Advanced Catalysts Design Towards Overall Water Splitting.In the oral presentation’s session, some scholars were given about 10-15 minutes to perform their oral presentations one by one. We were honored to invite Prof. Roger Ruan from University of Minnesota, USA as Session Chair of the Oral Presentation’s Session. There were fifteen scholars to present their speech on the topic of energy and environmental engineering, etc. In the Q&A session, all participants were invited to join in academic groups to discuss and explore the academic issues after the presentations. The discussion session will last 40 minutes.The proceedings collected the latest research and results in the field of energy and environmental engineering. The topic of this collection is related to energy engineering, electric power engineering, energy conservation and emission reduction and environmental engineering and so on. All manuscripts published in the proceeding have been through rigorous review and process to meet the requirements of International publication standard.Finally, we would like to express our sincere gratitude to the Chairman, the distinguished keynote speakers, as well as all the participants. Because of your enthusiastic participation, the conference was successfully held as planned. Thanks to the information technology, the online conference made it easier for more people join in our conference. We had around 80 attendees this time, and we are expecting more and more experts and scholars from all over the world to join this international event next year. We also want to thank the publisher for publishing the proceedings. We are grateful to all those who have contributed to the success of NEMD 2021. We hope that all participants and other interested readers benefit scientifically from the proceedings.The Organizing Committee of NEMD 2021List of Organizing Committees are available in this pdf.

Preface

As Covid-19 spreads around the world, people have to make some change to avoid being infected. And due to the outbreak of COVID-19, the participants were not able to meet each other at the 5th International Conference on New Energy and Future Energy System (NEFES 2020) supposed to be held in Xi’an during July 14th-17th, 2020. Even though the conference was postponed to November 3rd-6th, some of the participants from other countries were still not able to visit China to attend NEFES2020 for COVID-19. So, the conference organizer located in Wuhan made a decision to hold it as an online conference (virtual conference without any physical participation and held by Microsoft Teams) during November 3rd-6th. Microsoft Teams Meeting provides a more effective way for us to hold an online conference via some function like sharing the presenters’ Power Point or video, discussing in the chat box or taking pictures. However, there were also some shortcomings about online conference regarding time differences and internet conditions. Therefore, it is a way to hold an international conference online.NEFES 2020 was sponsored by Harbin Institute of Technology, Weihai. It aims to provide a platform for researchers and practitioners in both industry and academia to share their latest achievements and discuss the possible challenges in terms of new energy and future energy system. This volume records the proceedings of NEFES 2020 and contains 85 rigorously selected manuscripts submitted to the online conference. All the manuscripts were selected depending on their quality and relevance to the conference.One hundred and nine participants including presenters and listeners from a broad geographical coverage of counties including China, Australia, Switzerland, Italy, Spain, Romania, Indonesia, Iraq, Poland, Japan, Mexico, India, Russia, Germany and Iran joined NEFES2020 and made it a successful conference. The conference program included welcomes speech, 3 keynote speeches, 25 invited presentations, 11 oral presentations and 16 poster presentations. About 5 minutes were left for each oral presentation, the audience could raise up their hands before the session chair allowed them to ask questions or left message in the chat box as well as wrote an email to the presenters. The conference program was outlined as follows:Welcome speech was delivered by Prof. Fuqiang Wang, School of New Energy, Harbin Institute of Technology (Weihai) of China for five minutes.Three keynote speeches were from Prof. Mattheos Santamouris, University of New South Wales, Australia; Prof. Hui Jin, Xi’an Jiaotong University, China; Dr. Eric Johnson, Editor-in-chief emeritus of Environmental Impact Assessment Review and Managing Director of Atlantic Consulting, Switzerland. Each keynote speech lasted for 40 minutes and delivered on November 4th.The other online presentations were delivered by researchers, scholars and experts such as Prof. Riyi Lin, Prof. Zehui Chang, Dr. Liqiang Zhang, Dr. Yushi Liu, Prof. Chongchong Qi, Dr. Diana Enescu, Dr. Luigi Costanzo, Dr. Claudia Masselli, Dr. Jan Kazak. Each oral presentation lasted for 15-25 minutes. The topics of the online presentations covered New energy resources, New energy device, smart grid load and energy management, optical technologies for smart grid, Solar cell materials and lithium-ion batteries.List of NEFES2020 Scientific Committee Members, General Chair, Chair of Technical Program Committee and Technical Program Committee are available in the pdf.

Stimuli‐Responsive Nanotheranostics

Stimuli‐Responsive Nanotheranostics

An 18.3 MJ charging and discharging pulsed power supply system for the Space Plasma Environment Research Facility (SPERF): Modular design method and component selection.

The capacitor-based pulsed power supply (PPS) system is an important subsystem of the Space Plasma Environment Research Facility being built as a user facility at Harbin Institute of Technology in China. It has been developed with a modular design to drive magnetic coils to generate magnetic fields and plasma for the physical experiments. In this paper, the modular design and component selection are proposed based on a calculation of parameter ranges of components and the number of modules followed by a simulation and an engineering test. Both the simulation and test results show the feasibility of the selected components and the number of modules to meet the designing requirements of the PPS.

Combining Virtual and On-site Teaching for Innovation Training in Robot Engineering

Innovation training in engineering is an important facet of technical education in universities across China. Robotics training is a new course that has been developed using an informatization-based engineering training system at the Engineering Innovation Practice Center of the Harbin Institute of Technology. In this study, we propose a pedagogical method that combines virtual and on-site modes of teaching. Feedback obtained from students enrolled in the course showed a positive response to it. They claimed that they gained valuable knowledge from it that enabled them to carry out the relevant tasks in a better manner and more quickly. The feasibility of the proposed scheme was verified by a virtual simulation.

Preface

To adapt to this changing world and China’s fast development in this new era, the 2020 2nd International Academic Exchange Conference on Science and Technology Innovation (IAECST 2020) was to be held in December 2020. Organized jointly by over ten universities and academic societies, this conference takes “bringing together global wisdom in scientific innovation to promote high-quality development” as the theme and focuses on cutting-edge research fields including information technology, artificial intelligence, biomedicine, big data, water conservancy project, civil engineering, construction engineering, new energy and new materials. This conference aims to boost development of the Greater Bay Area, expand channels of international academic exchange in science and technology, build a sharing platform of academic resources, promote scientific innovation on the global scale, improve academic cooperation between China and the outside world. It also aims to encourage exchange of information on research frontiers in different fields, connect the most advanced academic resources in China and abroad, turn research results into industrial solutions, bring together talents, technologies and capital to boost development.The International Conference on Communications, Information System and Software Engineering (CISSE 2020) hold as a sub-venue of the 2020 2nd International Academic Exchange Conference on Science and Technology Innovation (IAECST 2020). The conference hosted by AEIC Academic Exchange Information Centre. We warmly welcome previous and prospected authors submit your new research papers to CISSE 2020, and share the valuable experiences with the scientist and scholars around the world.The conference model was divided into two sessions, including oral presentations and keynote speeches. In the first part, some scholars, whose submissions were selected as the excellent papers, were given 15 minutes to perform their oral presentations one by one. Then in the second part, keynote speakers were each allocated 30-45 minutes to hold their speeches. In this conference, we were greatly honored to have invited Prof. Anhui Liang from Guangdong University of Technology, GDUT, China as our Conference Chair. There were over 70 experts and scholars in the area of Communications, Information System and Software Engineering representing different famous universities and institutes around the globe to attend the conference.During the conference, we were pleased to invite four distinguished experts to present their insightful speeches. Prof. Nikolaos Freris, our first keynote speaker, from University of Science and Technology of China. His research interests: Reliability Design, Simulation and Modeling of Integrated Circuits and Electronic Devices. Prof. Philippe Fournier-Viger, from Harbin Institute of Technology. He devoted to Data Mining, Big Data, Artificial Intelligence, Pattern Mining, Itemset Mining, Graph Mining, Sequence Prediction and other related research area. Prof. Yulin Wang, from Wuhan University. He had outstanding research in Image and Video Processing, Digital Rights Management, Information Security, Intelligent System, E-Commerce, IoT, Code Clone and other related area. A.Prof. Miaowen Wen, our finale keynote speaker, from South China University of Technology. His research area: Wireless Communication, Molecular Communications.The participants of the conference were from most part of the world, with background of either academia or industry, even well-known enterprise. The success and prosperity of the conference is reflected high level of the papers received. The proceedings are a compilation of the accepted papers and represent an interesting outcome of the conference. CISSE 2020 for exchange of research findings, analysis, information, and knowledge in areas which include but are not limited to: Emergency Communication, Remote Sensing and Satellite Communication, Big Data and Intelligent Computing, Blockchain Technology and Systems, Emerging Embedded Applications and Interdisciplinary Topics Track, Software Engineering and other related topics.We would like to acknowledge all of those who supported CISSE 2020. Each individual and institutional help are very important for the success of this conference. Especially we would like to thank the organizing committee for their valuable advices in the organization and helpful peer review of the papers. We sincerely hope that CISSE 2020 will be a forum for excellent discussions that will put forward new ideas and promote collaborative researches. We are sure that the proceedings will serve as an important research source of references and the knowledge, which will lead to not only scientific and engineering progress but also other new products and processes.The Organizing Committee of CISSE 2020List of Committee member, Conference Chair, Academic Committees Member, International Technical Program Committees Member, Organization Committees Member are available in the pdf.

Family History Extraction From Synthetic Clinical Narratives Using Natural Language Processing: Overview and Evaluation of a Challenge Data Set and Solutions for the 2019 National NLP Clinical Challenges (n2c2)/Open Health Natural Language Processing (OHNLP) Competition.

BackgroundAs a risk factor for many diseases, family history (FH) captures both shared genetic variations and living environments among family members. Though there are several systems focusing on FH extraction using natural language processing (NLP) techniques, the evaluation protocol of such systems has not been standardized.ObjectiveThe n2c2/OHNLP (National NLP Clinical Challenges/Open Health Natural Language Processing) 2019 FH extraction task aims to encourage the community efforts on a standard evaluation and system development on FH extraction from synthetic clinical narratives.MethodsWe organized the first BioCreative/OHNLP FH extraction shared task in 2018. We continued the shared task in 2019 in collaboration with the n2c2 and OHNLP consortium, and organized the 2019 n2c2/OHNLP FH extraction track. The shared task comprises 2 subtasks. Subtask 1 focuses on identifying family member entities and clinical observations (diseases), and subtask 2 expects the association of the living status, side of the family, and clinical observations with family members to be extracted. Subtask 2 is an end-to-end task which is based on the result of subtask 1. We manually curated the first deidentified clinical narrative from FH sections of clinical notes at Mayo Clinic Rochester, the content of which is highly relevant to patients’ FH.ResultsA total of 17 teams from all over the world participated in the n2c2/OHNLP FH extraction shared task, where 38 runs were submitted for subtask 1 and 21 runs were submitted for subtask 2. For subtask 1, the top 3 runs were generated by Harbin Institute of Technology, ezDI, Inc., and The Medical University of South Carolina with F1 scores of 0.8745, 0.8225, and 0.8130, respectively. For subtask 2, the top 3 runs were from Harbin Institute of Technology, ezDI, Inc., and University of Florida with F1 scores of 0.681, 0.6586, and 0.6544, respectively. The workshop was held in conjunction with the AMIA 2019 Fall Symposium.ConclusionsA wide variety of methods were used by different teams in both tasks, such as Bidirectional Encoder Representations from Transformers, convolutional neural network, bidirectional long short-term memory, conditional random field, support vector machine, and rule-based strategies. System performances show that relation extraction from FH is a more challenging task when compared to entity identification task.

CHALLENGES IN THE ADMINISTRATION OF SATELLITE UNIVERSITY CAMPUSES IN CHINA - A CASE STUDY BASED ON HARBIN INSTITUTE OF TECHNOLOGY, SHENZHEN

Running satellite campuses in different locations is a regular feature in Chinese society nowadays due to the combined result of the complexities in enrolling students, the restricted scale of schooling, geographical limitations, and government policies. With the Reform and Opening-up, some of China's underdeveloped cities have become new economic engines. At the same time, their lack of higher education resources has limited their development. However, some colleges and universities have started satellite campuses to break through these limitations. The Harbin Institute of Technology (Shenzhen), co-founded by the Harbin Institute of Technology (HIT) and the Shenzhen Municipal Government, is a satellite campus of Harbin Institute of Technology. The paper summarised and sorted out the existing studies, interviewed the students of the Shenzhen campus of the Harbin Institute of Technology. Through studying the current situation, existing problems and their causes have been analysed. It was concluded that the current crisis facing the Harbin Institute of Technology (Shenzhen) revolves around the following points: brand awareness, school size, government policies, international situation, as well as faculty and campus management. Based on the research findings, it was recommended that Harbin Institute of Technology (Shenzhen) improve their brand marketing, expand the scale, train teachers further, upgrade risk management and research, and put forward concrete measures for several aspects of the negotiations.
 
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Влияние технологии постростовой обработки на порог оптического пробоя монокристалла ZnGeP2

The threshold of optical breakdown of a ZnGeP2 single crystal manufactured by LOK LLC, Russia, was determined, which was W0d =1.8 J / cm2, and the threshold of optical breakdown of a crystal manufactured by Harbin Institute of Technology, China, was also measured, which was W0d =2.1 J/cm2 (at a wavelength of 2,097 microns of laser radiation and a pulse repetition frequency of 10 kHz with a pulse duration of 35 ns).The effect of post-processing of ZnGeP2 single crystals (polishing of working surfaces )is investigated, application of antireflection interference coatings) to the threshold of optical breakdown of the surface of these crystals. It is established that the presence of silicon conglomerates in the interference antireflection coating leads to a decrease in the optical breakdown threshold.

International Conference on Data Processing Algorithms and Models

International Conference on Data Processing Algorithms and Models

Post deformation analysis of the ballistic impacted magnesium alloys, a short-review

From the mechanistic point of view, magnesium alloys are lightweight materials and are receiving increasing attention in the past several years in various fields. Prof. Liang Zhen from Harbin Institute of Technology, China and the United State military are showing keen interest in the development of magnesium alloys as ballistic resistant material. However, their use is still limited owing to low ductility, low formability, and average mechanical properties. The magnesium alloys components must withstand the shockwave under hypervelocity ballistic impact. The ballistic testing can produce gradient variations of the strain and stress-energy away from the crater, and useful for the development of these alloys in the military and aerospace industry. Therefore, the present review article shed light on the post deformation analysis of the Mg alloys subjected to the different projectiles under ballistic impact, and the underlying mechanisms were discussed. In the end, some important issues regarding the ballistic impact and further studies in this field were proposed.