This map shows the geographic impact of Sam Johansson'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 Sam Johansson with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Sam Johansson more than expected).
This network shows the impact of papers produced by Sam Johansson. 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 Sam Johansson. The network helps show where Sam Johansson may publish in the future.
Co-authorship network of co-authors of Sam Johansson
This figure shows the co-authorship network connecting the top 25 collaborators of Sam Johansson.
A scholar is included among the top collaborators of Sam Johansson 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 Sam Johansson. Sam Johansson is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Sjödahl, Pontus, Torleif Dahlin, & Sam Johansson. (2007). Detection of Internal Erosion and Seepage Evaluation Using Resistivity Monitoring. WASSERWIRTSCHAFT. 97(10). 54–56.2 indexed citations
6.
Sjödahl, Pontus, Torleif Dahlin, & Sam Johansson. (2007). Detection of Internal Erosion and Seepage Using Resistivity Monitoring. 10. 54–56.3 indexed citations
7.
Johansson, Sam. (2006). Fibre-optics to detect seepage and erosion in embankment dams. 94–97.1 indexed citations
8.
Johansson, Sam, et al.. (2005). Long Term Resistivity and Self Potential Monitoring of Embankment Dams – Experiences from Hällby and Sädva Dams, Sweden. Lund University Publications (Lund University).2 indexed citations
Dahlin, Torleif, et al.. (2001). Resistivity and SP Surveying and Monitoring at the Sädva Embankment Dam, Sweden. Lund University Publications (Lund University). 107–113.7 indexed citations
15.
Johansson, Sam, et al.. (2000). Seepage Monitoring by Resistivity and Streaming Potential Measurements at Hällby Embankment Dam 1996-1999. Lund University Publications (Lund University).4 indexed citations
16.
Johansson, Sam. (1997). Seepage monitoring in embankment dams. KTH Publication Database DiVA (KTH Royal Institute of Technology).48 indexed citations
17.
Johansson, Sam & Torleif Dahlin. (1996). Seepage monitoring in an earth embankment dam by repeated resistivity measurements. Lund University Publications (Lund University). 1(3). 229–247.74 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.