D. D. Ragan

455 total citations
12 papers, 380 citations indexed

About

D. D. Ragan is a scholar working on Polymers and Plastics, Electrical and Electronic Engineering and Geophysics. According to data from OpenAlex, D. D. Ragan has authored 12 papers receiving a total of 380 indexed citations (citations by other indexed papers that have themselves been cited), including 5 papers in Polymers and Plastics, 5 papers in Electrical and Electronic Engineering and 4 papers in Geophysics. Recurrent topics in D. D. Ragan's work include Transition Metal Oxide Nanomaterials (5 papers), Gas Sensing Nanomaterials and Sensors (4 papers) and High-pressure geophysics and materials (4 papers). D. D. Ragan is often cited by papers focused on Transition Metal Oxide Nanomaterials (5 papers), Gas Sensing Nanomaterials and Sensors (4 papers) and High-pressure geophysics and materials (4 papers). D. D. Ragan collaborates with scholars based in United States, Sweden and Latvia. D. D. Ragan's co-authors include David Schiferl, R. L. Gustavsen, David R. Clarke, A. Azens, Lisen Kullman, Thomas E. Mates, Claes‐Göran Granqvist, Peter Svedlindh, D.R. Clarke and G. Vaivars and has published in prestigious journals such as Applied Physics Letters, Journal of Applied Physics and Journal of the American Ceramic Society.

In The Last Decade

D. D. Ragan

12 papers receiving 365 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
D. D. Ragan United States	8	185	130	94	70	68	12	380
Paul Balog Germany	8	247 1.3×	124 1.0×	87 0.9×	58 0.8×	53 0.8×	18	424
Kentaro Uehara Canada	13	468 2.5×	150 1.2×	108 1.1×	110 1.6×	57 0.8×	22	620
Jae-Hyun Klepeis United States	7	356 1.9×	202 1.6×	147 1.6×	74 1.1×	24 0.4×	7	602
Jiaming Hu China	10	398 2.2×	183 1.4×	146 1.6×	41 0.6×	20 0.3×	22	553
C. L. Wiley United States	10	246 1.3×	35 0.3×	83 0.9×	58 0.8×	30 0.4×	18	400
H. T. Tohver United States	13	476 2.6×	148 1.1×	131 1.4×	128 1.8×	14 0.2×	24	622
Ayano Chiba Japan	12	265 1.4×	47 0.4×	84 0.9×	94 1.3×	27 0.4×	64	392
Satoshi Ohmura Japan	11	311 1.7×	59 0.5×	109 1.2×	158 2.3×	18 0.3×	48	484
Shuji Munejiri Japan	13	334 1.8×	153 1.2×	56 0.6×	113 1.6×	10 0.1×	32	474
Minseob Kim United States	15	355 1.9×	311 2.4×	55 0.6×	94 1.3×	16 0.2×	37	598

Countries citing papers authored by D. D. Ragan

Since Specialization

Citations

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

Fields of papers citing papers by D. D. Ragan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of D. D. Ragan

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

All Works

Sort: Min cites: Since: Top N: Style:

12 of 12 papers shown

Ragan, D. D.. (2018). A Structured Course for Personal and Professional Development. Insecta mundi. 14. 43–57. 1 indexed citations

Ragan, D. D., Thomas E. Mates, & D.R. Clarke. (2003). Effect of Yttrium and Erbium Ions on Epitaxial Phase Transformations in Alumina. Journal of the American Ceramic Society. 86(4). 541–45. 25 indexed citations

Azens, A., Lisen Kullman, D. D. Ragan, & C.G. Granqvist. (1998). Optically passive counter electrodes for electrochromic devices: transition metal–cerium oxide thin films. Solar Energy Materials and Solar Cells. 54(1-4). 85–91. 17 indexed citations

Ragan, D. D., Peter Svedlindh, & Claes‐Göran Granqvist. (1998). Electrochromic Ni oxide films studied by magnetic measurements. Solar Energy Materials and Solar Cells. 54(1-4). 247–254. 23 indexed citations

Kullman, Lisen, Monica Veszelei, D. D. Ragan, et al.. (1997). <title>Cerium-containing counter electrodes for transparent electrochromic devices</title>. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 2968. 219–224. 11 indexed citations

Azens, A., Lisen Kullman, D. D. Ragan, et al.. (1996). Optical and electrochemical properties of dc magnetron sputtered Ti–Ce oxide films. Applied Physics Letters. 68(26). 3701–3703. 35 indexed citations

Ragan, D. D., et al.. (1996). Measurement of the Fracture Energy of SiO₂/TiN Interfaces Using the Residually-Stressed Thin-Film Micro-Strip Test. MRS Proceedings. 458. 4 indexed citations

Azens, A., et al.. (1996). Electrochromic properties of Ti-Ce oxides: The effect of varying stoichiometry. 218–228. 2 indexed citations

Ragan, D. D., David R. Clarke, & David Schiferl. (1996). Silicone fluid as a high-pressure medium in diamond anvil cells. Review of Scientific Instruments. 67(2). 494–496. 67 indexed citations

10.

Ragan, D. D., R. L. Gustavsen, & David Schiferl. (1992). Calibration of the ruby R1 and R2 fluorescence shifts as a function of temperature from 0 to 600 K. Journal of Applied Physics. 72(12). 5539–5544. 163 indexed citations

11.

Schmidt, S. C., et al.. (1991). Calibration of the nitrogen vibron pressure scale for use at high temperatures and pressures. Journal of Applied Physics. 69(5). 2793–2799. 28 indexed citations

12.

Schmidt, S. C., et al.. (1990). Vibrational frequency shifts of fluid nitrogen fundamental and hot band transitions as a function of pressure and temperature. High Pressure Research. 4(1-6). 577–579. 4 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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