This map shows the geographic impact of V. Ciupină's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by V. Ciupină with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites V. Ciupină more than expected).
This network shows the impact of papers produced by V. Ciupină. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by V. Ciupină. The network helps show where V. Ciupină may publish in the future.
Co-authorship network of co-authors of V. Ciupină
This figure shows the co-authorship network connecting the top 25 collaborators of V. Ciupină.
A scholar is included among the top collaborators of V. Ciupină based on the total number of
citations received by their joint publications. Widths of edges
represent the number of papers authors have co-authored together.
Node borders
signify the number of papers an author published with V. Ciupină. V. Ciupină is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Ionescu, Viorel, et al.. (2009). Carbon-copper amorphous composite coatings grown by thermionic vacuum arc method.1 indexed citations
8.
Ciupină, V., et al.. (2008). INVESTIGATION OF NANOCRYSTALS USING TEM MICROGRAPHS AND ELECTRON DIFFRACTION TECHNIQUE ê. 37(5). 643–7.12 indexed citations
9.
Musa, G., N. Ekem, Şuat Pat, et al.. (2007). Carbon synthesis in methane plasma. Journal of Optoelectronics and Advanced Materials. 9(4). 871–874.5 indexed citations
10.
Vlădoiu, Rodica, V. Ciupină, C.P. Lungu, et al.. (2007). Properties of the carbon thin films deposited by thermionic vacuum arc. Journal of Optoelectronics and Advanced Materials. 9(4). 862–866.8 indexed citations
11.
Alexandrescu, R., R. Bı̂rjega, V. Ciupină, et al.. (2007). Nanoscale Maghemite Iron Oxide Powders Prepared by Laser Pyrolysis. TechConnect Briefs. 4(2007). 234–237.1 indexed citations
12.
Vlădoiu, Rodica, V. Ciupină, C.P. Lungu, Vilma Buršı́ková, & G. Musa. (2006). Thermoionic vacuum arc (TVA) deposited tungsten thin film characterization. Journal of Optoelectronics and Advanced Materials. 8(1). 71–73.11 indexed citations
Ciupină, V., et al.. (2003). CHARACTERIZATION OF ZnAl2O4 NANOCRYSTALS PREPARED BY COPRECIPITATION AND MICROEMULSION TECHNIQUES.18 indexed citations
19.
Ciupină, V., et al.. (2003). The influence of heat treatment on the electrical conductivity of antimony trioxide thin films. Journal of Optoelectronics and Advanced Materials. 5(4). 907–912.15 indexed citations
Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive
bibliographic database. While OpenAlex provides broad and valuable coverage of the global
research landscape, it—like all bibliographic datasets—has inherent limitations. These include
incomplete records, variations in author disambiguation, differences in journal indexing, and
delays in data updates. As a result, some metrics and network relationships displayed in
Rankless may not fully capture the entirety of a scholar's output or impact.