R. Usui

1.0k total citations
4 papers, 30 citations indexed

About

R. Usui is a scholar working on Astronomy and Astrophysics, Radiation and Electrical and Electronic Engineering. According to data from OpenAlex, R. Usui has authored 4 papers receiving a total of 30 indexed citations (citations by other indexed papers that have themselves been cited), including 3 papers in Astronomy and Astrophysics, 2 papers in Radiation and 2 papers in Electrical and Electronic Engineering. Recurrent topics in R. Usui's work include Ionosphere and magnetosphere dynamics (2 papers), CCD and CMOS Imaging Sensors (2 papers) and Radiation Detection and Scintillator Technologies (2 papers). R. Usui is often cited by papers focused on Ionosphere and magnetosphere dynamics (2 papers), CCD and CMOS Imaging Sensors (2 papers) and Radiation Detection and Scintillator Technologies (2 papers). R. Usui collaborates with scholars based in Japan. R. Usui's co-authors include N. Kawabata, J. Kataoka, Yoshitaka Ishikawa, Yuichiro Miura, N. Kawai, Takeshi Nakamori, T. Toizumi, Yoichi Yatsu, M. Sugizaki and Takayuki Yamamoto and has published in prestigious journals such as Journal of Geophysical Research Atmospheres, Internal Medicine and Journal of Physics Conference Series.

In The Last Decade

R. Usui

4 papers receiving 29 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
R. Usui Japan	3	16	10	6	6	5	4	30
J. M. Illa Spain	3	9 0.6×	7 0.7×	6 1.0×	4 0.7×	2 0.4×	8	20
J. Hulsman Switzerland	4	13 0.8×	10 1.0×	11 1.8×	2 0.3×	1 0.2×	8	26
G. Baulieu France	3	22 1.4×	6 0.6×	19 3.2×	5 0.8×	1 0.2×	5	47
K. Lacombe France	4	14 0.9×	12 1.2×	11 1.8×	1 0.2×	2 0.4×	12	27
P. Weissbach Germany	3	29 1.8×	13 1.3×	2 0.3×	5 0.8×	3 0.6×	3	44
R. Zhang China	5	7 0.4×	8 0.8×	10 1.7×	2 0.3×	1 0.2×	11	41
G. Gallina Canada	3	8 0.5×	15 1.5×	11 1.8×	3 0.5×	1 0.2×	8	35
L. Kravchuk Russia	4	10 0.6×	9 0.9×	7 1.2×		1 0.2×	9	36
C. De Donato Italy	5	24 1.5×	11 1.1×	6 1.0×	3 0.5×	1 0.2×	12	46
Sergey Kuleshov Chile	4	18 1.1×	9 0.9×	3 0.5×	2 0.3×	1 0.2×	12	36

Countries citing papers authored by R. Usui

Since Specialization

Citations

This map shows the geographic impact of R. Usui'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 R. Usui with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites R. Usui more than expected).

Fields of papers citing papers by R. Usui

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by R. Usui. 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 R. Usui. The network helps show where R. Usui may publish in the future.

Co-authorship network of co-authors of R. Usui

This figure shows the co-authorship network connecting the top 25 collaborators of R. Usui. A scholar is included among the top collaborators of R. Usui 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 R. Usui. R. Usui is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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4 of 4 papers shown

1.

Usui, R., et al.. (2016). Infected Aneurysm after Endoscopic Submucosal Dissection. Internal Medicine. 55(10). 1327–1329. 2 indexed citations

2.

Morii, M., Nobuyuki Kawai, R. Usui, et al.. (2011). MAXI Monitoring of Crab Pulsar during the GeV Gamma-ray Flare on September 2010. Journal of Physics Conference Series. 302. 12062–12062. 1 indexed citations

3.

Toizumi, T., Yoichi Yatsu, Takeshi Nakamori, et al.. (2010). In-orbit performance of avalanche photodiode as radiation detector onboard a pico-satellite Cute-1.7+APD II. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 7742. 77420Q–77420Q. 2 indexed citations

4.

Kataoka, J., T. Toizumi, Takeshi Nakamori, et al.. (2010). In‐orbit performance of avalanche photodiode as radiation detector on board the picosatellite Cute‐1.7+APD II. Journal of Geophysical Research Atmospheres. 115(A5). 25 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.

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