R. Hayatsu

580 total citations
18 papers, 455 citations indexed

About

R. Hayatsu is a scholar working on Fuel Technology, Geochemistry and Petrology and Nuclear and High Energy Physics. According to data from OpenAlex, R. Hayatsu has authored 18 papers receiving a total of 455 indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Fuel Technology, 6 papers in Geochemistry and Petrology and 5 papers in Nuclear and High Energy Physics. Recurrent topics in R. Hayatsu's work include Coal and Coke Industries Research (7 papers), Coal and Its By-products (6 papers) and Hydrocarbon exploration and reservoir analysis (4 papers). R. Hayatsu is often cited by papers focused on Coal and Coke Industries Research (7 papers), Coal and Its By-products (6 papers) and Hydrocarbon exploration and reservoir analysis (4 papers). R. Hayatsu collaborates with scholars based in United States and Canada. R. Hayatsu's co-authors include Martin H. Studier, Edward Anders, Randall E. Winans, R. C. Scott, Leon P. Moore, R.L. McBeth, Robert G. Scott, Robert E. Botto, Sumiko Matsuoka and Gary R. Dyrkacz and has published in prestigious journals such as Geochimica et Cosmochimica Acta, Fuel and Energy & Fuels.

In The Last Decade

R. Hayatsu

18 papers receiving 422 citations

Peers

R. Hayatsu

ECOLO

Leon P. Moore United States

D. W. Nooner United States

Michael G. Strachan Australia

B.L. Baker Canada

É. M. Galimov Russia

Jarred Gillette United States

Hugh W. Hubble United States

Noriko Nakayama Japan

Xinyang Chen China

Thomas Gautier France

Leon P. Moore United States

R. Hayatsu

150 ×0.9

131 ×0.9

95 ×1.2

68 ×0.9

ECOLO

81 ×1.2

Citations per year, relative to R. Hayatsu R. Hayatsu (= 1×) peers Leon P. Moore

Countries citing papers authored by R. Hayatsu

Since Specialization

Citations

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

Fields of papers citing papers by R. Hayatsu

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

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

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

All Works

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18 of 18 papers shown

Hayatsu, R., et al.. (1990). Terpenoid biomarkers in Argonne Premium coal samples and their role during coalification. Energy & Fuels. 4(5). 456–463. 11 indexed citations

Anderson, Ken B., Robert E. Botto, Gary R. Dyrkacz, R. Hayatsu, & Randall E. Winans. (1990). Discussion of recent conclusions concerning the structure of Victorian brown coal resinite: a reply to the comments of Wilson et al.. Fuel. 69(7). 934–936. 10 indexed citations

Botto, Robert E., R. Hayatsu, Kathleen A. Carrado, & Randall E. Winans. (1989). Isotope labeling investigations in simulated coalification: A view of geological metamorphism. OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information). 2 indexed citations

Winans, Randall E., R. Hayatsu, R.L. McBeth, Robert G. Scott, & Robert E. Botto. (1988). Aromatic structures in whole coals and coal macerals. 3 indexed citations

Hayatsu, R., Robert E. Botto, R.L. McBeth, Robert G. Scott, & Randall E. Winans. (1988). Chemical alteration of a biological polymer "sporopollenin" during coalification: origin, formation, and transformation of the coal maceral sporinite. Energy & Fuels. 2(6). 843–847. 23 indexed citations

Hayatsu, R., et al.. (1987). Chemical structure of a sporinite from a lignite: Comparison with a synthetic sporinite transformed from sporopollenin. 2 indexed citations

Hayatsu, R., Robert E. Botto, Robert G. Scott, R.L. McBeth, & Randall E. Winans. (1987). Thermal catalytic transformation of pentacyclic triterpenoids: Alteration of geochemical fossils during coalification. Organic Geochemistry. 11(4). 245–250. 30 indexed citations

Winans, Randall E., et al.. (1986). Characterization and pyrolysis of separated coal macerals. Fuel Processing Technology. 12. 77–88. 10 indexed citations

Winans, Randall E., et al.. (1985). Characterization and reactivity of hydroxyls and ethers in coal macerals. OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information). 1 indexed citations

10.

Smith, Bruce A., et al.. (1983). Structure and reactivity of coal model polymers. Brain stimulation. 14(5). 1197–1200. 1 indexed citations

11.

Hayatsu, R., et al.. (1983). Correlations between the chemical and the geologic origins of anthraxolite from the Gunflint Formation, Thunder Bay, Ontario. Economic Geology. 78(1). 175–180. 5 indexed citations

12.

Hayatsu, R., Randall E. Winans, R.L. McBeth, Robert G. Scott, & Leon P. Moore. (1981). Oxidative degradation studies and modern concepts of the formation and transformation of organic constituents of coals and sedimentary rocks. 2 indexed citations

13.

Hayatsu, R., et al.. (1978). Trapped organic compounds and aromatic units in coals. Fuel. 57(9). 541–548. 145 indexed citations

14.

Anders, E., R. Hayatsu, & Martin H. Studier. (1977). Catalytic reactions in the solar nebula.. 517. 1 indexed citations

15.

Studier, Martin H., R. Hayatsu, & Edward Anders. (1972). Origin of organic matter in early solar system—V. Further studies of meteoritic hydrocarbons and a discussion of their origin. Geochimica et Cosmochimica Acta. 36(2). 189–215. 142 indexed citations

16.

Hayatsu, R., Martin H. Studier, Sumiko Matsuoka, & Edward Anders. (1972). Origin of organic matter in early solar system—VI. Catalytic synthesis of nitriles, nitrogen bases and porphyrin-like pigments. Geochimica et Cosmochimica Acta. 36(5). 555–571. 46 indexed citations

17.

Anet, F. A. L., William A. Ayer, R. Hayatsu, et al.. (1964). The structure of lyconnotine: A novel lycopodium alkaloid. Tetrahedron Letters. 5(14). 751–757. 9 indexed citations

18.

Ayer, William A., et al.. (1961). The photodimers of α-pyridones. Tetrahedron Letters. 2(18). 648–653. 12 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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