# Additive Manufacturing and Chemical Engineering: Looking for Synergies from a Bibliometric Study
## 3 Results and Discussion
### Bibliometric Performance Analysis
#### 3.1.2 Publication Distribution of Countries and Institutions
\begin{table}
\begin{tabular}{l l l l} \hline \hline
**Institution** & **Country** & **Publications** & **Contribution (\%)** \\ \hline Nanyang Technological University & Singapore & 60 & 1.60 \\ Ministry of Education China & China & 59 & 1.57 \\ CNRS Centre National de la Recherche Scientifique & France & 51 & 1.36 \\ School of Mechanical and Aerospace Engineering & Singapore & 49 & 1.30 \\ Chinese Academy of Sciences & China & 48 & 1.28 \\ Friedrich-Alexander-Universität Erlangen-Nürnberg & Germany & 47 & 1.25 \\ Politecnico di Torino & Italy & 42 & 1.12 \\ Huazhong University of Science and Technology & China & 35 & 0.93 \\ Virginia Polytechnic Institute and State University & United States & 33 & 0.88 \\ Singapore Centre for 3D Printing & Singapore & 33 & 0.88 \\ Universita degli Studi di Padova & Italy & 32 & 0.85 \\ University of Maryland, College Park & United States & 31 & 0.82 \\ Purdue University & United States & 30 & 0.80 \\ Rheinisch-Westfalische Technische Hochschule Aachen & Germany & 29 & 0.77 \\ Beijing Institute of Technology & China & 28 & 0.74 \\ National University of Singapore & Singapore & 28 & 0.74 \\ Monash University & Australia & 27 & 0.72 \\ Georgia Institute of Technology & United States & 27 & 0.72 \\ Tsinghua University & China & 27 & 0.72 \\ Delft University of Technology & The Netherlands & 26 & 0.69 \\ Xi’an Jiaotong University & China & 26 & 0.69 \\ Universität Twente & The Netherlands & 26 & 0.69 \\ Politecnico di Milano & Italy & 26 & 0.69 \\ Oak Ridge National Laboratory & United States & 26 & 0.69 \\ ETH Zurich & Switzerland & 26 & 0.69 \\ A. James Clark School of Engineering & United States & 26 & 0.69 \\ \hline \hline \end{tabular}
\end{table} 
Table 6: The top 26 most productive institutions (more than 25 documents). colleges and universities. The investment in higher education institutions in China over the past two decades has led to improvements in both human and physical resources. These improvements have been accompanied by new policy factors, resulting in a positive impact on university productivity [43; 44]. On the other hand, the Chinese Academy of Sciences represents the largest research organization in the world, comprising 100 research institutes, two universities, and approximately 70,000 full-time employees. Consequently, it has been instrumental in spearheading China's research endeavors, particularly at the forefront of scientific advancement. Additionally, it serves as the primary catalyst for innovation in science and technology, provides consultative services for technological advancement, and nurtures talent for research applications [45]. Furthermore, four Chinese universities were included in Table 6: Huazhong University of Science and Technology (35 documents), Beijing Institute of Technology (28 documents), Tsinghua University (27 documents), and Xi'an Jiaotong University (26 documents). The third most prominent institution was the CNRS (Centre National de la Recherche Scientifique), with 51 documents, or 1.36% of the total. This center is France's primary public research institution, conducting both basic and applied research in various disciplines, including chemical engineering and additive manufacturing. CNRS houses several laboratories and research groups focused on topics such as polymeric materials, catalytic processes, bioengineering, and nanotechnology. In addition to CNRS, other European institutions contributing to the advancement of knowledge and innovation in additive manufacturing include Friedrich-Alexander University of Erlangen-Nuremberg (Germany) with 47 documents; Politecnico di Torino (Italy) with 42 documents; Delft University of Technology (Netherlands) with 26 documents; and ETH Zurich (Switzerland) with 26 documents. Notwithstanding its status as the foremost nation in scientific output on the investigated topic, the United States presents only just a single institution in the top ten rankings (the most prolific institution from the United States was situated in ninth place).