J. Um

613 total citations
14 papers, 512 citations indexed

About

J. Um is a scholar working on Mechanics of Materials, Civil and Structural Engineering and Environmental Engineering. According to data from OpenAlex, J. Um has authored 14 papers receiving a total of 512 indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Mechanics of Materials, 5 papers in Civil and Structural Engineering and 5 papers in Environmental Engineering. Recurrent topics in J. Um's work include Rock Mechanics and Modeling (6 papers), Landslides and related hazards (4 papers) and Groundwater flow and contamination studies (4 papers). J. Um is often cited by papers focused on Rock Mechanics and Modeling (6 papers), Landslides and related hazards (4 papers) and Groundwater flow and contamination studies (4 papers). J. Um collaborates with scholars based in United States and South Korea. J. Um's co-authors include Pinnaduwa H.S.W. Kulatilake, George Pan, Mingyu Wang, Wenhao He, Jae Gon Kim, Ik Woo, Hyuck‐Jin Park, Jinhee Kim, Deniz Cukur and Gwang H. Lee and has published in prestigious journals such as International Journal of Solids and Structures, International Journal of Rock Mechanics and Mining Sciences and Engineering Geology.

In The Last Decade

J. Um

13 papers receiving 494 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
J. Um United States	8	352	229	213	137	120	14	512
Bo‐An Jang South Korea	15	405 1.2×	379 1.7×	202 0.9×	113 0.8×	80 0.7×	50	729
G. Archambault Canada	10	366 1.0×	218 1.0×	207 1.0×	95 0.7×	99 0.8×	25	540
Sylvie Gentier France	11	391 1.1×	247 1.1×	196 0.9×	272 2.0×	236 2.0×	21	687
N. Fardin Sweden	9	471 1.3×	255 1.1×	280 1.3×	181 1.3×	138 1.1×	10	663
Flavio Lanaro Sweden	8	214 0.6×	189 0.8×	115 0.5×	74 0.5×	88 0.7×	14	369
Tianhong Yang China	13	442 1.3×	236 1.0×	197 0.9×	46 0.3×	140 1.2×	31	573
Lohrasb Faramarzi Iran	14	358 1.0×	279 1.2×	173 0.8×	40 0.3×	81 0.7×	35	562
Biao Shu China	13	268 0.8×	223 1.0×	129 0.6×	123 0.9×	150 1.3×	30	504
Changshuo Wang China	10	253 0.7×	169 0.7×	131 0.6×	76 0.6×	97 0.8×	21	368
S. Chanchole France	14	467 1.3×	324 1.4×	211 1.0×	75 0.5×	110 0.9×	23	631

Countries citing papers authored by J. Um

Since Specialization

Citations

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

Fields of papers citing papers by J. Um

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of J. Um

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

All Works

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14 of 14 papers shown

Woo, Ik, et al.. (2012). Evaluation of the impact of pyrite oxidation on rock characteristics and environment by laboratory tests. Environmental Earth Sciences. 69(6). 1821–1829. 5 indexed citations

Cukur, Deniz, Gwang H. Lee, J. Um, Dae C. Kim, & Jinhee Kim. (2009). Northern Barbados accretionary prism: Structure, deformation, and fluid flow interpreted from 3D seismic and well‐log data. Island Arc. 18(4). 642–660.

Kulatilake, Pinnaduwa H.S.W. & J. Um. (2003). Spatial variation of cone tip resistance for the clay site at Texas A&M University. Geotechnical and Geological Engineering. 21(2). 149–165. 18 indexed citations

Kulatilake, Pinnaduwa H.S.W., et al.. (2003). Stochastic fracture geometry modeling in 3-D including validations for a part of Arrowhead East Tunnel, California, USA. Engineering Geology. 70(1-2). 131–155. 84 indexed citations

Kulatilake, Pinnaduwa H.S.W., et al.. (2002). Estimation of REV size and three-dimensional hydraulic conductivity tensor for a fractured rock mass through a single well packer test and discrete fracture fluid flow modeling. International Journal of Rock Mechanics and Mining Sciences. 39(7). 887–904. 110 indexed citations

Um, J., et al.. (2001). Investigation of Slope Stability For a Section of Phelps Dodge Sierrita Mine. 967–974. 1 indexed citations

Kulatilake, Pinnaduwa H.S.W. & J. Um. (1999). Accuratestimation of rock joint roughness using variogram method. 407–414. 1 indexed citations

Kulatilake, Pinnaduwa H.S.W. & J. Um. (1999). Requirements for accurate quantification of self-affine roughness using the roughness–length method. International Journal of Rock Mechanics and Mining Sciences. 36(1). 5–18. 82 indexed citations

Kulatilake, Pinnaduwa H.S.W., et al.. (1999). Development of New Peak Shear-Strength Criterion for Anisotropic Rock Joints. Journal of Engineering Mechanics. 125(9). 1010–1017. 21 indexed citations

10.

Kulatilake, Pinnaduwa H.S.W., J. Um, & George Pan. (1998). Requirements for accurate quantification of self-affine roughness using the variogram method. International Journal of Solids and Structures. 35(31-32). 4167–4189. 62 indexed citations

11.

Kulatilake, Pinnaduwa H.S.W., et al.. (1998). Development of a new peak shear strength criterion for anisotropic rock joints. International Journal of Rock Mechanics and Mining Sciences. 35(4-5). 418–420. 5 indexed citations

12.

Kulatilake, Pinnaduwa H.S.W., J. Um, & George Pan. (1997). Requirements for accurate estimation of fractal parameters for self-affine roughness profiles using the line scaling method. Rock Mechanics and Rock Engineering. 30(4). 181–206. 52 indexed citations

13.

Kulatilake, Pinnaduwa H.S.W. & J. Um. (1997). Requirements for accurate quantification of self affine roughness using the roughness-length method. International Journal of Rock Mechanics and Mining Sciences. 34(3-4). 166.e1–166.e15. 7 indexed citations

14.

Kulatilake, Pinnaduwa H.S.W., et al.. (1997). A physical model study of jointed rock mass strength under uniaxial compressive loading. International Journal of Rock Mechanics and Mining Sciences. 34(3-4). 165.e1–165.e15. 64 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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