Top Global Researchers and Organizations in Hypersonics

Small cutouts of the flexible thermal protection system for NASA’s hypersonic inflatable aerodynamic decelerator (HIAD) exposed to temperatures up to ~2,700 ºF during testing at Boeing’s large core arc tunnel in St. Louis, MI (credit: NASA).
Small cutouts of the flexible thermal protection system for NASA’s hypersonic inflatable aerodynamic decelerator (HIAD) exposed to temperatures up to ~2,700 ºF during testing at Boeing’s large core arc tunnel in St. Louis, MI (credit: NASA).

Posted on May 1, 2019 | Completed on May 1, 2019 | By: Taylor H. Knight

Who are the leading global researchers in hypersonics technology?

 

The Defense Systems Information Analysis Center (DSIAC) received a technical inquiry requesting a search of available databases to identify the top global researchers and organizations in hypersonics.  DSIAC staff searched multiple literature databases, including Scopus and Web of Science (WoS), to provide information on the publications, number of citations, patents awarded, and pending patents held in hypersonics technology and research development.  Four different lists of the top 10 global researchers and affiliations were compiled based on patents awarded, patents pending, and Scopus and WoS database publications and citations.

 


1.0  Introduction

DSIAC completed literature searches for publications and patent information on hypersonics via the Scopus and Derwent Innovation databases.  DSIAC used the search terms “hypersonics,” “hypersonics research,” and “hypersonic research OR technology.”  The searches were limited to the past 3 years so that the results would reflect the most recent research.  The results across all searches are compiled in Table 1.

 

Table 1:  Top Researchers Across All Searches

 

Researcher No. of Patents Granted No. of Patents Pending No. of Scopus Publications No. of WoS Publications
Jiang, Pei-Xue 15
Wang, Guo-Hong 13
Xu, Bin 10
Wang, Yi 8
Wang, Yu-Hui 8
Luo, Jin-Ling 8
Fan, Xiao-Qiang 7
Wu, Qing-Xian 7
Chen, Mou 6
Li, Jia-Wei 6
Tang, Ji-Bin 6
Yan, Chongnian 36 25
Huang, Wei 27 27
Tang, Guojian 26
Boyd, Iain D. 25
Candler, Graham V. 24
Zhou, Jun 24 18
Bu, Xiang-Wei 21 24
Yan, Li 19 19
Kimmel, Roger 18
Bao, Wen 23
Chang, Juntao 19
Yu, Daren 18
Zong, Q. 17

Note:  WoS = Web of Science.

 

The following results are provided in Sections 2.0 and 3.0:

  • Top researchers and organizations based on the number of patents awarded in hypersonics research.
  • Top researchers and organizations based on patents pending.
  • Research and patent trends among top countries performing hypersonics research.
  • Top researchers and organizations based on the number of publications and citations found in Scopus.
  • Top researchers and organizations found in the WoS database.

A spreadsheet containing patent information for the top results found in Derwent Innovations was exported and delivered to the inquirer for further review.

 


2.0  Top Researchers/  Organizations Based on Patents

The Derwent Innovation database, part of Clarivate Analytics, was used to search for global researchers in hypersonics based on the number of granted (awarded) patents and pending patent applications.  Searches were performed using the terms “hypersonic AND (research OR technology)” and “hypersonic.”

The search parameters included patents granted in 2016 to present day and alive and indeterminate patents.  The search term “hypersonic” was very general and returned a larger, more accurate depiction of global researchers in the overarching area of hypersonics.  The total number of hits was 969, and 478 (i.e., 51%) of the patents are from the top 10 organizations (shown in Table 2).

 

Table 2:  Top 10 Organizations Based on Patents Granted

Organization No. of Patents
Granted per
Organization
Top
Researcher(s)
No. of
Patents per
Researcher
University of Nanjing Aeronautics and Astronautics 90 Tan, Hui-Jan 18
Wang, Lei 16
CenNavi Technologies Co. Ltd.

–     China Academy of Aerospace Aerodynamics

90 Cheng, Xing 11
Wang, Yu-Dong 8
The Boeing Company 50 Embler, Jonathan 15
Academy of Military Sciences at the National University of Defense Technology 50 Liu, Jun 16
University of Beijing Aeronautics and Astronautics (Beihang University) 50 Wang, Xiao-Jun 15
University of Xiamen 35 You, Yancheng 31
Li, Yi-Qing 19
China Aerodynamics Research and Development Center 33 Xu, Xiaobin 19
Zhu, Tao 16
Lin, Jing-Zhou 14
Raytheon 28
University of Northwestern Polytechnical 28 Xu, Bin 11
Tsinghua University 24 Jiang, Pei-Xue 15

The researchers identified in bold in Table 2 are also listed in Table 3 as the top 10 researchers based on patents granted.  They hold 178 patents or 18% of the total patents found via the search.

 

Table 3:  Top 10 Researchers Based on Patents Granted

Researcher No. of Patents Granted Affiliation
You, Yancheng 31 University of Xiamen
Xu, Xiaobin 19 China Aerodynamics Research and Development Center
Li, Yi-Qing 19 University of Xiamen
Tan, Hui-Jan 18 University of Nanjing Aeronautics and Astronautics
Zhu, Tao 16 China Aerodynamics Research and Development Center
Liu, Jun 16 Academy of Military Sciences
Wang, Lei 16 University of Nanjing Aeronautics and Astronautics
Jiang, Pei-Xue 15 Tsinghua University
Wang, Xiao-Jun 15 University of Beijing Aeronautics and Astronautics (Beihang University)
Lin, Jing-Zhou 14 China Aerodynamics Research and Development Center

 

China, the United States, and Russia are the top patent holders in hypersonics research.  Based on data from Derwent, the number of patents issued in each country from 2016 to 2019 has increased each year, suggesting hypersonics research is on the rise (shown in Figure 1).

 

Figure 1:  Graph of U.S., Chinese, and Russian Patent Trends.

 

The top researchers and their affiliations based on the number of pending hypersonics patent applications without grants are shown in Table 4.  Using the term “hypersonic,” the search was limited to alive and indeterminate patents from 2016 to present.  Indeterminate patents were included because it was unclear whether they were dead or alive.

 

Table 4:  Top Researchers Based on Pending Patents

Researcher No. of Pending Patents Affiliation
Xu, Bin 10 University of Northwestern Polytechnical
Wang, Yi 8 Academy of Military Medical Sciences at the National University of Defense Technology
Wang, Yu-Hui 8 University of Nanjing Aeronautics and Astronautics
Luo, Jin-Ling 8 Beijing Kongtian Technology Research Institute
Fan, Xiao-Qiang 7 Academy of Military Medical Sciences at the National University of Defense Technology
Wu, Qing-Xian 7 University of Nanjing Aeronautics and Astronautics
You, Yancheng 6 Xiamen University
Chen, Mou 6 University of Nanjing Aeronautics and Astronautics
Li, Jia-Wei 6 University of Nanjing Aeronautics and Astronautics
Tang, Ji-Bin 6 ·     CenNavi Technologies Co. Ltd (China Academy of Aerospace and Aerodynamics)

·     Beijing Kongtian Technology Research Institute

·     Tsinghua University

 


3.0  Top Researchers/  Organizations Based on Publications and Citations

 

3.1  Scopus Search Results

DSIAC also used Scopus, a literature database, to search for researchers and organizations working in hypersonics and patents related to hypersonics.  Scopus is the largest curated abstract and citation database of peer-reviewed literature containing over 71 million records, 23,000 peer-reviewed journals, and more than 166,000 books.  Scopus uses sophisticated search tools that can search by document, author, or affiliation and can refine results by source type, year, language, author, affiliation, and more.  As with other search engines, Boolean logic can narrow the number of citations to more relevant results.  Scopus also contains hundreds of thousands of engineering conference papers not covered in alternative databases [1].

Using the term “hypersonic,” the Scopus search was limited to conference proceedings and journal articles from 2016 to present.  The top 10 organizations are shown in Table 5, and the top 10 researchers are shown in Table 6.  The rankings are based on number of publications and citations per organization/researcher.  The h‑index metric is also included as an attempt to measure the productivity and citation impact of the publications of the researchers.  The h‑index is based on an author’s number of publications and citations to provide an estimate of the importance and impact of his/her research contributions.  The h-index means a researcher has index h if h of his/her publications have at least h citations each.  For example, an h-index of 15 means that 15 of the author’s publications have received at least 15 citations each.  The higher the h-index, the more credible the research.

 

Table 5:  Top 10 Organizations Based on the Number of Publications

Organization No. of Documents Top Researcher(s) No. of
Documents
No. of
Citations
h-Index
Beihang University 237 Yan, Chongnian 36 95 10
Northwestern Polytechnical University 212 Zhou, Jun 24 37 10
National University of Defense Technology 195 Huang, Wei 27 302 31
Tang, Guojian 26 24 14
Yan, Li 19 320 20
Nanjing University of Aeronautics and Astronautics 184 Liu, Yanbin 14 13 6
China Aerodynamics Research and Development Center 157 Gui, Yewei 13 9 8
Harbin Institute of Technology 143 Qin, Jiang 17 57 19
Chinese Academy of Sciences 102 Yi, Jianqiang 18 42 28
Wright-Patterson Air Force Base 97 Kimmel, Roger 18 53 23
China Academy of Aerospace Aerodynamics 97 Liu, Chuanzhen 9 10 3
Air Force Engineering University, China 73 Bu, Xiang-Wei 21 247 14

Seven of the top researchers identified in bold in Table 5 are also identified in descending order in Table 6 as top researchers overall.

 

Table 6:  Top 10 Researchers Based on Scopus Publications and Citations

Researcher Affiliation No. of Documents No. of Citations h-Index
Yan, Chongnian Beihang University 36 97 10
Huang, Wei National University of Defense Technology

–     Academy of Military Medical Sciences

27 302 31
Tang, Guojian National University of Defense Technology

–     Academy of Military Medical Sciences

26 24 14
Boyd, Iain D. University of Michigan, Ann Arbor 25 117 47
Candler, Graham V. University of Minnesota Twin Cities 24 56 40
Zhou, Jun Northwestern Polytechnical University 24 37 10
Bu, Xiang-Wei Air Force Engineering University, China 21 247 14
Liu, Jun Dalian University of Technology, China 20 87 18
Yan, Li National University of Defense Technology

–     Academy of Military Medical Sciences

19 320 20
Kimmel, Roger Spectral Energies, LLC

–     Wright Patterson Air Force Base

18 53 23

 

3.2  WoS Search Results

WoS provides access to research literature linked to a rigorously selected core of journals, ensuring a unique combination of discovery through captured metadata and citation connections.  The WoS Core Collection provides over one billion cited reference connections indexed from high-quality, peer-reviewed journals, books, and proceedings from 1900 to present.

WoS was the final database used by DSIAC to search for top global researchers and organizations in hypersonics.  The top researchers and organizations identified via the WoS search are shown in Table 7.  Using the term “hypersonic,” the WoS search was limited to conference articles and journals from 2016 to present.

 

Table 7:  Top Researchers/Organizations in WoS

Researcher Affiliation No. of Documents No. of Citations
Huang, Wei National University of Defense Technology 27 242
Yan, Chongnian Beihang University 25 81
Bu, Xiang-Wei Air Force Engineering University, China 24 215
Bao, Wen Harbin Institute of Technology 23 100
Liu, Jun ·     Beihang University

·     Dalian University of Technology

·     Nanjing University of Aeronautics and Astronautics

22 89
Chang, Juntao Harbin Institute of Technology 19 126
Yan, Li National University of Defense Technology 19 193
Yu, Daren Harbin Institute of Technology 18 125
Zhou, Jun ·     Northwestern Polytechnical University

·     Air Force Engineering University, China

18 30
Zong, Q Tianjin University 17 61

 


4.0  Search Results Analysis

There were two different metrics used to search top global researchers in hypersonics—the number of patents and the number of publications and citations.  When the searches were compared, the following organizations appeared in the search results of each database:

  • Beihang University, China.
  • Northwestern Polytechnical University, China.
  • Nanjing University of Aeronautics and Astronautics, China.
  • National University of Defense Technology, China.

The following organizations appeared in the search results of at least two of the databases:

  • China Aerodynamics Research and Development Center.
  • Chinese Academy of Sciences.
  • China Academy of Aerospace Aerodynamics.
  • Harbin Institute of Technology, China.
  • Air Force Engineering University, China.

Only one researcher, Jun Liu, appeared in all of our database search results.  Affiliated with multiple organizations, he holds patents with the Academy of Military Sciences and authored publications with Nanjing University of Aeronautics and Astronautics and Dalian University of Technology, China.  He has also coauthored multiple publications with Wei Huang of the National University of Defense Technology.

The following researchers appeared in the search results of at least two of the databases:

  • Huang, Wei.
  • Yan, Chongnian.
  • Bu, Xiang-Wei.
  • Yan, Li.
  • Zhou, Jun.

Potential points of interest are as follows:

  • Jun Liu and Li Yan were the coauthors on multiple publications with Wei Huang of the National University of Defense Technology.
  • Three of the top 10 researchers were not affiliated with any of the top 10 organizations (Iain D. Boyd, Graham V. Candler, and Jun Liu).
  • The Derwent search found that the following researchers identified in Table 5 hold multiple patents:
    • Wei Huang—4 patents.
    • Jun Liu—11 patents.
    • Li Yan—6 patents.

 


References

[1] Elsevier.  “Scopus.  An Eye on Global Research:  5,000 Publishers.  Over 71M Records and 23,700 Titles.”

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