Koki Nakajima

429 total citations
10 papers, 343 citations indexed

About

Koki Nakajima is a scholar working on Astronomy and Astrophysics, Nuclear and High Energy Physics and Civil and Structural Engineering. According to data from OpenAlex, Koki Nakajima has authored 10 papers receiving a total of 343 indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Astronomy and Astrophysics, 2 papers in Nuclear and High Energy Physics and 1 paper in Civil and Structural Engineering. Recurrent topics in Koki Nakajima's work include Cosmology and Gravitation Theories (5 papers), Pulsars and Gravitational Waves Research (3 papers) and Galaxies: Formation, Evolution, Phenomena (2 papers). Koki Nakajima is often cited by papers focused on Cosmology and Gravitation Theories (5 papers), Pulsars and Gravitational Waves Research (3 papers) and Galaxies: Formation, Evolution, Phenomena (2 papers). Koki Nakajima collaborates with scholars based in Japan, Thailand and Indonesia. Koki Nakajima's co-authors include Hideki Asada, Takao Kitamura, Naoki Tsukamoto, Naoko Hirota, Yuki Murata, Ken-ichi Nemoto, Yuichi CHIDA and Tatsuya Yamaguchi and has published in prestigious journals such as IFAC-PapersOnLine, International Journal of Pharmacy and Pharmaceutical Sciences and THE JOURNAL OF THE STOMATOLOGICAL SOCIETY JAPAN.

In The Last Decade

Koki Nakajima

9 papers receiving 335 citations

Peers

Koki Nakajima

AA

NHEP

AMPO

SNP

OE

Zhen Zhong China

Arne Grenzebach Germany

Ramon Lopez-Aleman Germany

Robert E. Lopez United States

F. De Luca Switzerland

Bakhtiyor Narzilloev Uzbekistan

Kenta Hioki Japan

Kuan Liu China

Zhaoyi Xu China

Merce Guerrero Spain

Zhen Zhong China

Koki Nakajima

304 ×1.0

AA

243 ×1.5

NHEP

29 ×0.4

AMPO

36 ×1.2

SNP

4 ×0.3

OE

Citations per year, relative to Koki Nakajima Koki Nakajima (= 1×) peers Zhen Zhong

Countries citing papers authored by Koki Nakajima

Since Specialization

Citations

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

Fields of papers citing papers by Koki Nakajima

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Koki Nakajima

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

All Works

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10 of 10 papers shown

1.

Nakajima, Koki, et al.. (2021). THE EFFECT OF HEALTH EDUCATION AS NON-PHARMACOLOGICAL THERAPY ON PHYSICAL FITNESS, BLOOD CHEMISTRY AND BRAIN FUNCTION AMONG SENIOR CITIZEN IN BOTH RURAL AND URBAN AREAS OF BALI, INDONESIA. International Journal of Pharmacy and Pharmaceutical Sciences. 24–28. 3 indexed citations

2.

Yamaguchi, Tatsuya, et al.. (2020). Improved Path Planning of the Blade for an Automatic Spinach Harvester. IFAC-PapersOnLine. 53(2). 15816–15823. 1 indexed citations

3.

Murata, Yuki, et al.. (2015). Effect of a Two-year Health Program on Brain Function, Physical Fitness and Blood Chemistry. Journal of Community Medicine & Health Education. 5(3). 12 indexed citations

4.

Nakajima, Koki, et al.. (2014). Negative time delay of light by a gravitational concave lens. Physical review. D. Particles, fields, gravitation, and cosmology. 90(8). 29 indexed citations

5.

Tsukamoto, Naoki, Takao Kitamura, Koki Nakajima, & Hideki Asada. (2014). Gravitational lensing in Tangherlini spacetime in the weak gravitational field and the strong gravitational field. Physical review. D. Particles, fields, gravitation, and cosmology. 90(6). 41 indexed citations

6.

Kitamura, Takao, et al.. (2014). Microlensed image centroid motions by an exotic lens object with negative convergence or negative mass. Physical review. D. Particles, fields, gravitation, and cosmology. 89(8). 26 indexed citations

7.

Nakajima, Koki, et al.. (2013). Gravitational lensing shear by an exotic lens object with negative convergence or negative mass. Physical review. D. Particles, fields, gravitation, and cosmology. 88(2). 51 indexed citations

8.

Kitamura, Takao, Koki Nakajima, & Hideki Asada. (2013). Demagnifying gravitational lenses toward hunting a clue of exotic matter and energy. Physical review. D. Particles, fields, gravitation, and cosmology. 87(2). 50 indexed citations

9.

Nakajima, Koki & Hideki Asada. (2012). Deflection angle of light in an Ellis wormhole geometry. Physical review. D. Particles, fields, gravitation, and cosmology. 85(10). 122 indexed citations

10.

Nakajima, Koki. (2007). Study on Patch Test Reagent for Titanium. THE JOURNAL OF THE STOMATOLOGICAL SOCIETY JAPAN. 74(2). 92–98. 8 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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