J.F. Ryan

2.5k total citations
115 papers, 1.9k citations indexed

About

J.F. Ryan is a scholar working on Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering and Materials Chemistry. According to data from OpenAlex, J.F. Ryan has authored 115 papers receiving a total of 1.9k indexed citations (citations by other indexed papers that have themselves been cited), including 87 papers in Atomic and Molecular Physics, and Optics, 53 papers in Electrical and Electronic Engineering and 28 papers in Materials Chemistry. Recurrent topics in J.F. Ryan's work include Semiconductor Quantum Structures and Devices (61 papers), Quantum and electron transport phenomena (36 papers) and Advancements in Semiconductor Devices and Circuit Design (13 papers). J.F. Ryan is often cited by papers focused on Semiconductor Quantum Structures and Devices (61 papers), Quantum and electron transport phenomena (36 papers) and Advancements in Semiconductor Devices and Circuit Design (13 papers). J.F. Ryan collaborates with scholars based in United Kingdom, United States and Germany. J.F. Ryan's co-authors include Andrew J. Turberfield, J. F. Scott, Robert A. Taylor, Ram S. Katiyar, J. M. Worlock, W. Hayes, W. Wiegmann, A. C. Gossard, C. T. Foxon and Rebecca Ford and has published in prestigious journals such as Physical Review Letters, SHILAP Revista de lepidopterología and Physical review. B, Condensed matter.

In The Last Decade

J.F. Ryan

113 papers receiving 1.8k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
J.F. Ryan United Kingdom 22 1.2k 704 567 315 243 115 1.9k
T. Ruf Germany 29 1.2k 1.0× 803 1.1× 1.4k 2.4× 647 2.1× 284 1.2× 154 3.2k
Y. Oka Japan 21 1.2k 1.0× 916 1.3× 890 1.6× 200 0.6× 67 0.3× 188 2.0k
Timothy M. Wilson United States 20 566 0.5× 361 0.5× 409 0.7× 74 0.2× 141 0.6× 57 1.5k
Henry Chong United States 9 439 0.4× 780 1.1× 372 0.7× 120 0.4× 352 1.4× 13 1.8k
S. Fukatsu Japan 29 2.0k 1.8× 2.0k 2.9× 1.6k 2.8× 149 0.5× 634 2.6× 190 3.2k
David Hilton United States 26 877 0.8× 820 1.2× 441 0.8× 186 0.6× 170 0.7× 87 2.2k
Takashi Kita Japan 27 1.9k 1.7× 1.7k 2.5× 1.4k 2.4× 361 1.1× 517 2.1× 279 3.1k
Pankaj Srivastava India 22 573 0.5× 422 0.6× 452 0.8× 364 1.2× 120 0.5× 112 1.7k
Harold R. Fetterman United States 29 1.3k 1.1× 2.1k 3.0× 420 0.7× 149 0.5× 522 2.1× 191 3.2k
David C. Ailion United States 22 571 0.5× 143 0.2× 711 1.3× 121 0.4× 99 0.4× 91 1.7k

Countries citing papers authored by J.F. Ryan

Since Specialization
Citations

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

Fields of papers citing papers by J.F. Ryan

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by J.F. Ryan. 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 J.F. Ryan. The network helps show where J.F. Ryan may publish in the future.

Co-authorship network of co-authors of J.F. Ryan

This figure shows the co-authorship network connecting the top 25 collaborators of J.F. Ryan. A scholar is included among the top collaborators of J.F. Ryan 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 J.F. Ryan. J.F. Ryan 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.
2.
Ryan, J.F., Briony K. Varda, Veronica Gomez‐Lobo, et al.. (2024). Anal Sphincter Reconstruction Using the Posterior Sagittal Approach for Pediatric Perineal Trauma. SHILAP Revista de lepidopterología. 12(1). e90–e94. 1 indexed citations
3.
4.
Mohan, Helen, J.F. Ryan, Brendan Whelan, & Abel Wakai. (2010). The end of the line? The Visual Analogue Scale and Verbal Numerical Rating Scale as pain assessment tools in the emergency department. Emergency Medicine Journal. 27(5). 372–375. 52 indexed citations
5.
Taylor, Robert A., et al.. (1998). Photoluminescence Studies of Mg-Doped and Si-Doped Gallium Nitride Epilayers. physica status solidi (b). 210(2). 465–470. 7 indexed citations
6.
Taylor, Robert A., et al.. (1998). Dynamics of resonantly excited excitons in GaN. Physical review. B, Condensed matter. 58(24). R15973–R15976. 22 indexed citations
7.
Ryan, J.F., et al.. (1997). Spin and Charge Density Excitations and the Collapse of the Fractional Quantum Hall State atν=1/3. Physical Review Letters. 78(21). 4095–4098. 60 indexed citations
8.
Miller, Peter, et al.. (1997). Massive bone allografts for limb salvage.. American Journal of Roentgenology. 168(2). 543–546. 3 indexed citations
9.
Dabbicco, Maurizio, C.J. Stevens, Robert A. Taylor, et al.. (1996). Time-resolved study of stimulated emission in superlattices. Journal of Crystal Growth. 159(1-4). 657–660. 1 indexed citations
10.
Ryan, J.F., et al.. (1996). 13 Adjuvant brachytherapy for primary and recurrent soft-tissue sarcoma at WSU. Radiotherapy and Oncology. 39. S4–S4. 4 indexed citations
11.
Stevens, C.J., Robert A. Taylor, J.F. Ryan, et al.. (1994). Exciton dynamics and recombination in ZnSe/ZnSe0.82S0.18superlattices. Semiconductor Science and Technology. 9(5S). 762–764. 2 indexed citations
12.
Stevens, C.J., Robert A. Taylor, J.F. Ryan, et al.. (1994). Time-resolved photoluminescence studies of stimulated emission and exciton dynamics in ZnSe/ZnS0.18Se0.82 superlattices. Solid-State Electronics. 37(4-6). 1133–1136. 2 indexed citations
13.
Wong, Kam Sing, W. Hayes, & J.F. Ryan. (1989). A picosecond photoluminescence study of exciton dynamics in Cd1-xMnxTe. Journal of Physics Condensed Matter. 1(19). 3115–3129. 3 indexed citations
14.
Maciel, A. C., P. Malý, & J.F. Ryan. (1989). Subharmonic bifurcation and chaos in a periodically modulated Co:MgF2laser. Physical review. A, General physics. 39(10). 5455–5458. 4 indexed citations
15.
Wong, Kam Sing, W. Hayes, J.F. Ryan, & A. K. Ramdas. (1987). Picosecond time-resolved study of the luminescence of Cd1-xMnxTe in magnetic fields. Journal of Physics C Solid State Physics. 20(28). L755–L760. 3 indexed citations
16.
Turberfield, Andrew J., J.F. Ryan, & J. M. Worlock. (1986). Photoluminescence study of two-dimensional carriers in the presence of in-plane magnetic fields. Surface Science. 170(1-2). 624–628. 8 indexed citations
17.
Ryan, J.F.. (1985). Time-resolved photoluminescence for quantum well semiconductor heterostructures. Physica B+C. 134(1-3). 403–411. 13 indexed citations
18.
Hayes, W., et al.. (1983). Picosecond studies of luminescence of cis polyacetylene. Journal of Physics C Solid State Physics. 16(20). L729–L732. 19 indexed citations
19.
Hayes, W., et al.. (1979). Photoluminescence studies of deep traps in GaP:Ni. Journal of Physics C Solid State Physics. 12(21). L815–L820. 11 indexed citations
20.
Hisano, K. & J.F. Ryan. (1972). Quasi-elastic scattering in lead germanate (5PbO. 3GeO2). Solid State Communications. 11(12). 1745–1749. 14 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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