# Application of Blockchain Technology in Emergency Management Systems: A Bibliometric Analysis
## 4 Results
### Analysis of the Institutional Cooperation Network  
Table 2 presents the top fifteen institutions that contributed to publications in the research domain.  
The data reveal a strong dominance of Chinese institutions. For example, Anhui University leads with seven publications after beginning its research activities in 2023, while Anhui University of Science and Technology, Chinese Academy of Sciences, and Wuhan University follow with six publications. Other major contributors include Chinese institutions such as Beihang University, Beijing Jiaotong University, Zhejiang University, China University of Mining and Technology, and Nanjing University of Science and Technology, which further emphasizes China's strong involvement in this area.  
\begin{table}
\begin{tabular}{c c c c c} \hline \# & **Countries** & **Year** & **Count** & **Centrality** \\ \hline
1 & China & 2017 & 92 & 0.23 \\
2 & USA & 2019 & 33 & 0.30 \\
3 & India & 2019 & 32 & 0.32 \\
4 & Saudi Arabia & 2020 & 19 & 0.16 \\
5 & Italy & 2019 & 18 & 0.19 \\
6 & Australia & 2019 & 14 & 0.11 \\
7 & Pakistan & 2020 & 12 & 0.18 \\
8 & Taiwan & 2021 & 12 & 0.06 \\
9 & Canada & 2019 & 11 & 0.17 \\
10 & France & 2017 & 9 & 0.20 \\ \hline \end{tabular}
\end{table}
Table 1: Leading countries contributing to the research domain.  
Figure 3: The cooperation network between countries.  
This suggests that while many institutions are active, the interconnections among them are relatively sparse, indicating an opportunity for improved global collaboration. Strength  
\begin{table}
\begin{tabular}{c c c c c} \hline \hline
**\#** & **Institution** & **Country** & **Count** & **Year** \\ \hline
1 & Anhui University & China & 7 & 2023 \\
2 & Anhui University of Science and Technology & China & 6 & 2023 \\
3 & Chinese Academy of Sciences & China & 6 & 2021 \\
4 & Wuhan University & China & 6 & 2023 \\
5 & Beihang University & China & 3 & 2017 \\
6 & Charles Darwin University & Australia & 3 & 2021 \\
7 & Southwestern University of Finance & China & 3 & 2022 \\  & and Economics & & & \\
8 & King Saud University & Saudi Arabia & 3 & 2024 \\
9 & Beijing Jiaotong University & China & 3 & 2022 \\
10 & Zhejiang University & China & 3 & 2023 \\
11 & China University of Mining and Technology & China & 3 & 2022 \\
12 & Nanjing University of Science and Technology & China & 3 & 2019 \\
13 & Egyptian Knowledge Bank & Egypt & 3 & 2022 \\
14 & Beijing Institute of Technology & China & 3 & 2021 \\
15 & COMSATS University Islamabad & Pakistan & 3 & 2022 \\ \hline \hline \end{tabular}  
Outside China, institutions such as Charles Darwin University (Australia), King Saud University (Saudi Arabia), Egyptian Knowledge Bank (Egypt), and COMSATS University Islamabad (Pakistan) also contributed to the field, although with lower publication counts. The examined network of institutions consists of 166 nodes and 142 links, yielding a low density of 0.0104 (Figure 4).  
\begin{tabular}{l} CiteSpace, v. 6.4.R1 (64-bit) Advanced \\ March 26, 2025, 4.59:55 PM GET \\ WoS: D:CiCiteSpaceMEMdata \\ Timespan: 2017-2024 (Slice Length=1) \\ Selection Criteria: g-index (k=25), LRF=3.0, L/N=10, LBY=5; e=1.0 \\ Network: N=166, E=142 (Density=0.0104) \\ Largest 1 CCs: 11 (6%) \\ Nodes Labeled: 1.0% \\ Pruning: None \\ \hline \hline \end{tabular}
\end{table}
Table 2: Leading institutions contributing to the research domain.  
Figure 4: The cooperation network between institutions.  
ening international partnerships could help to integrate diverse perspectives and accelerate the development of effective blockchain solutions for emergency management systems.