N. Ayai

1.2k total citations
61 papers, 921 citations indexed

About

N. Ayai is a scholar working on Biomedical Engineering, Condensed Matter Physics and Electrical and Electronic Engineering. According to data from OpenAlex, N. Ayai has authored 61 papers receiving a total of 921 indexed citations (citations by other indexed papers that have themselves been cited), including 50 papers in Biomedical Engineering, 47 papers in Condensed Matter Physics and 29 papers in Electrical and Electronic Engineering. Recurrent topics in N. Ayai's work include Superconducting Materials and Applications (49 papers), Physics of Superconductivity and Magnetism (47 papers) and HVDC Systems and Fault Protection (21 papers). N. Ayai is often cited by papers focused on Superconducting Materials and Applications (49 papers), Physics of Superconductivity and Magnetism (47 papers) and HVDC Systems and Fault Protection (21 papers). N. Ayai collaborates with scholars based in Japan, United States and Netherlands. N. Ayai's co-authors include Kazuhiko Hayashi, K. Sato, S. Kobayashi, J. Fujikami, Masashi Kikuchi, Takeshi Kato, K. Yamazaki, Hitoshi Kitaguchi, Kōzō Osamura and R. Hata and has published in prestigious journals such as Physica C Superconductivity, Superconductor Science and Technology and IEEE Transactions on Applied Superconductivity.

In The Last Decade

N. Ayai

59 papers receiving 873 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
N. Ayai Japan 20 777 634 276 266 123 61 921
B. ten Haken Netherlands 16 715 0.9× 595 0.9× 251 0.9× 217 0.8× 62 0.5× 36 828
J. Fujikami Japan 22 892 1.1× 642 1.0× 323 1.2× 303 1.1× 133 1.1× 58 1.0k
L.R. Motowidlo United States 19 840 1.1× 616 1.0× 240 0.9× 235 0.9× 165 1.3× 84 1.0k
Y. Viouchkov United States 13 876 1.1× 759 1.2× 368 1.3× 196 0.7× 65 0.5× 20 1.0k
M. Polák Slovakia 19 1.0k 1.3× 692 1.1× 335 1.2× 391 1.5× 191 1.6× 114 1.2k
K.R. Marken United States 18 969 1.2× 781 1.2× 286 1.0× 281 1.1× 120 1.0× 55 1.2k
Kabindra R. Bhattarai United States 9 682 0.9× 620 1.0× 378 1.4× 163 0.6× 88 0.7× 12 887
K. Kajikawa Japan 18 1.1k 1.4× 871 1.4× 518 1.9× 293 1.1× 100 0.8× 109 1.3k
M.P. Oomen Germany 17 728 0.9× 480 0.8× 396 1.4× 202 0.8× 82 0.7× 37 853
M. Ueyama Japan 15 692 0.9× 478 0.8× 266 1.0× 235 0.9× 98 0.8× 30 792

Countries citing papers authored by N. Ayai

Since Specialization
Citations

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

Fields of papers citing papers by N. Ayai

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of N. Ayai

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

All Works

20 of 20 papers shown
1.
Kitaguchi, Hitoshi, Osamu Ozaki, T. Miyazaki, et al.. (2010). Development of a Bi-2223 HTS Magnet for 3T MRI System for Human Brains. IEEE Transactions on Applied Superconductivity. 20(3). 710–713. 36 indexed citations
2.
Ueno, S., Shinji Yamashita, M. Kiuchi, et al.. (2010). Effect of number of filaments on the critical current density in multifilamentary Bi-2223 tape. Physica C Superconductivity. 470(20). 1380–1383. 1 indexed citations
3.
Hojo, Masaki, Taiji ADACHI, Yasuhiro Inoue, et al.. (2010). Effect of fatigue loading on critical current in stainless steel–laminated DI-BSCCO superconducting composite tape. Physica C Superconductivity. 470(20). 1373–1376. 11 indexed citations
4.
Ayai, N., K. Yamazaki, Masashi Kikuchi, et al.. (2009). Electrical and Mechanical Properties of DI-BSCCO Type HT Reinforced With Metallic Sheathes. IEEE Transactions on Applied Superconductivity. 19(3). 3014–3017. 38 indexed citations
5.
Kitaguchi, Hitoshi, et al.. (2009). Performance of an over-pressure processed Bi-2223/Ag/SUS tape and a small layer-winding coil. Superconductor Science and Technology. 22(4). 45005–45005. 25 indexed citations
6.
Nakamura, Taketsune, et al.. (2008). The direct relationship between output power and current carrying capability of rotor bars in HTS induction/synchronous motor with the use of DI-BSCCO tapes. Superconductor Science and Technology. 21(8). 85006–85006. 23 indexed citations
7.
Ayai, N., Kazuhiko Hayashi, Naoyuki Amemiya, & Kenji Yasuda. (2006). Development of Bi-2223 Wires with a Carbonate Barrier for AC Use-Reduced AC Losses in Parallel Transverse AC Magnetic Fields-. TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan). 41(1). 36–41. 1 indexed citations
8.
Kobayashi, S., Takeshi Kato, Kohei Yamazaki, et al.. (2005). Controlled Over Pressure Processing of Bi2223 Long Length Wires. IEEE Transactions on Applied Superconductivity. 15(2). 2534–2537. 50 indexed citations
9.
Ayai, N., Kazuhiko Hayashi, & Kenji Yasuda. (2005). Development of Bi-2223 Superconducting Wires for AC Applications. IEEE Transactions on Applied Superconductivity. 15(2). 2510–2513. 16 indexed citations
10.
Ayai, N., et al.. (2003). Development of Bi-2223 wires for AC use. Physica C Superconductivity. 392-396. 1003–1006. 11 indexed citations
11.
Amemiya, Naoyuki, Jin Feng, Zhenan Jiang, et al.. (2003). Total AC losses in twisted and untwisted multifilamentary Bi-2223 superconducting tapes carrying AC transport current in AC longitudinal magnetic field. Superconductor Science and Technology. 16(3). 314–321. 24 indexed citations
12.
Jiang, Zhenan, Naoyuki Amemiya, N. Ayai, & Kazuhiko Hayashi. (2003). AC loss measurements of twisted and non-twisted BSCCO tapes in transverse magnetic field with various directions. IEEE Transactions on Applied Superconductivity. 13(2). 3557–3560. 10 indexed citations
13.
Ayai, N., et al.. (2002). Development of ceramic partitioned Bi-2223 wires for AC power cable. Physica C Superconductivity. 378-381. 1078–1082. 6 indexed citations
14.
Ciszek, M., O. Tsukamoto, J. Ogawa, et al.. (2001). Power dissipation in composite Ag/Bi-2223 tapes with twisted and untwisted filaments. IEEE Transactions on Applied Superconductivity. 11(1). 2753–2756. 2 indexed citations
15.
Ayai, N., Yuichi Yamada, K. Ohmatsu, et al.. (1999). Development of Nb/sub 3/Al superconductors for ITER. IEEE Transactions on Applied Superconductivity. 9(2). 2688–2691. 2 indexed citations
16.
Ochiai, Shojiro, Hiroaki Ohno, Yuichi Oki, et al.. (1999). Progress of fatigue damages and its influence on the critical current of multifilamentary Nb3Al superconducting composite. Superconductor Science and Technology. 12(8). 499–506. 4 indexed citations
17.
Hikata, Takeshi, M. Ueyama, N. Ayai, et al.. (1999). Status of Bi-2223 tapes performance and development. IEEE Transactions on Applied Superconductivity. 9(2). 2465–2468. 22 indexed citations
18.
Yamada, Yuichi, N. Ayai, Kazuhiko Hayashi, et al.. (1999). Development of Nb3Al superconductors for International Thermonuclear Experimental Reactor (ITER). Cryogenics. 39(2). 115–122. 32 indexed citations
19.
Ochiai, Shojiro, et al.. (1998). Fatigue behaviour at room temperature and its influence on superconducting properties at 4.2 K of multifilamentary composite wire. Superconductor Science and Technology. 11(3). 322–332. 7 indexed citations
20.
Yamada, Yuichi, N. Ayai, Kenichi Takahashi, et al.. (1997). The Characteristics and Demonstration on Nb<SUB>3</SUB>Al Superconductor made by the Jelly-Roll Process. Journal of the Japan Institute of Metals and Materials. 61(9). 814–821. 3 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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