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Company · Concord · United States

Lettis Consultants International (United States)

lettisci.comROR OpenAlex
Research works
59
▲ 102% vs 2013–17
Citations
794
13.4 per fractional work
Top-10% rate
18.2%
record average 16.5%
Open access
31%
world 28%

Not ranked overall: Lettis Consultants International (United States) is under the volume floor below which an excellence rate is noise. Not ranked is not the same as ranked last.

Field profile

Location quotient across every field it publishes in: outside the ring is more than an institution of this size would be expected to publish, inside it is less.

Agricultural and Biological Sciences: 0.23× its world share, 0 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.08× its world share, 0 worksBiochemistry, Geneti…Computer Science: 1.69× its world share, 3 worksComputer ScienceEarth and Planetary Sciences: 24.91× its world share, 8 worksEarth and Planetary …Engineering: 1.79× its world share, 5 worksEngineeringEnvironmental Science: 1.40× its world share, 1 worksEnvironmental ScienceHealth Professions: 0.63× its world share, 0 worksHealth ProfessionsMedicine: 0.21× its world share, 1 worksMedicineNursing: 0.12× its world share, 0 worksNursingArts and Humanities: 0.43× its world share, 0 worksArts and HumanitiesBusiness, Management and Accounting: 0.17× its world share, 0 worksBusiness, Management…Decision Sciences: 2.65× its world share, 0 worksDecision SciencesPsychology: 0.14× its world share, 0 worksPsychologySocial Sciences: 0.15× its world share, 0 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Earth and Planetary Sciences, 24.9×. Every wedge is a field page.

Which keywords describe research at Lettis Consultants International (United States)?

By fractional works in all years, weighted toward what it does more of than the world: Subduction, Earthquakes, Plate Boundaries, Tomography, Ground Motion, Seismic Engineering, Seismic Noise and Surface Wave.

▲ more of its work than of the world’s◆ about the world’s share▼ less than the world’s

Size is fractional works in all years in the topics tagged with each word; colour is the word's share of this institution's work against its share of the world's. The 40 words are chosen for being large and distinctive. Each links to the topic it comes from most.

All 40 words, with their numbers
  1. Subduction8▲ 128×2 topics
  2. Earthquakes7▲ 152×1 topic
  3. Plate Boundaries7▲ 152×1 topic
  4. Tomography6▲ 36×2 topics
  5. Ground Motion5▲ 279×1 topic
  6. Seismic Engineering5▲ 279×1 topic
  7. Seismic Noise4▲ 157×1 topic
  8. Surface Wave4▲ 157×1 topic
  9. Climate Change4▲ 2.5×8 topics
  10. Plate Tectonics3▲ 26×2 topics
  11. Machine Learning3▲ 2.6×2 topics
  12. Tectonics3▲ 32×2 topics
  13. Earthquake Detection3▲ 231×1 topic
  14. Seismic Signals3▲ 231×1 topic
  15. Geochronology2▲ 38×1 topic
  16. Remote Sensing2▲ 3.4×3 topics
  17. Zircon2▲ 38×1 topic
  18. GIS-based Modeling2▲ 44×2 topics
  19. Geological Mapping2▲ 29×2 topics
  20. Vibration-based Damage Identification2▲ 42×1 topic
  21. Wireless Sensors2▲ 42×1 topic
  22. Glacial Cycles2▲ 23×1 topic
  23. Paleoclimatology2▲ 20×1 topic
  24. Crystal Structure Prediction1▲ 25×1 topic
  25. Mantle Dynamics1▲ 25×1 topic
  26. Ionospheric Anomalies1▲ 56×1 topic
  27. Regional Development1▲ 8.1×3 topics
  28. Seismic1▲ 39×1 topic
  29. Seismic Electromagnetics1▲ 56×1 topic
  30. Tunnel1▲ 27×1 topic
  31. Agricultural Development1▲ 15×1 topic
  32. Assembly Planning1▲ 20×1 topic
  33. Dance Movement Therapy1▲ 139×1 topic
  34. Design for Manufacture1▲ 20×1 topic
  35. Export Processing Zones1▲ 130×1 topic
  36. Fluvial Systems1▲ 39×1 topic
  37. Hazard1▲ 32×1 topic
  38. Landslide1▲ 32×1 topic
  39. Physical Fitness1▲ 20×2 topics
  40. Sedimentation1▲ 23×1 topic

Which research topics does Lettis Consultants International (United States) publish most on?

By volume in 2022–2025: earthquake and tectonic studies, Seismic Waves and Analysis, Seismic Performance and Analysis and Seismology and Earthquake Studies.

earthquake and tectonic …3earthquake and tectonic studies: 3 fractional worksSeismic Waves and Analysis: 2 fractional worksSeismic Performance and Analysis: 2 fractional worksSeismology and Earthquak…2Seismology and Earthquake Studies: 2 fractional worksGeotechnical Engineering…1Geotechnical Engineering and Underground Structures: 1 fractional worksLandslides and related hazards: 1 fractional works3D Surveying and Cultural Heritage: 0 fractional worksGeochemistry and Geologic Mapping: 0 fractional worksSeismic Imaging and Inversion Techniques: 0 fractional worksStructural Health Monitoring Techniques: 0 fractional works
GeophysicsCivil and Structural EngineeringArtificial IntelligenceManagement, Monitoring, Policy and Law1 others

Area is fractional works; colour is the subfield each topic belongs to.

  1. 1 earthquake and tectonic studies Geophysics 3 works
  2. 2 Seismic Waves and Analysis Geophysics 2 works
  3. 3 Seismic Performance and Analysis Civil and Structural Engineering 2 works
  4. 4 Seismology and Earthquake Studies Artificial Intelligence 2 works
  5. 5 Geotechnical Engineering and Underground Structures Civil and Structural Engineering 1 works
  6. 6 Landslides and related hazards Management, Monitoring, Policy and Law 1 works
  7. 7 3D Surveying and Cultural Heritage Geology 0 works
  8. 8 Geochemistry and Geologic Mapping Artificial Intelligence 0 works
  9. 9 Seismic Imaging and Inversion Techniques Geophysics 0 works
  10. 10 Structural Health Monitoring Techniques Civil and Structural Engineering 0 works

How open and international is its research?

Against the world’s own shares — the tick on each track. Both are shares of its output, so they sit on one scale and can be read against each other as well as against the world.

openly available31.4%not open68.6%

World: 28% of research is openly available.

with international co-authors25.8%domestic only74.2%

World: 19% is written across borders.

How has Lettis Consultants International (United States)'s research output changed?

Output in 2018–2022 was 102% higher than in 2013–2017.

1990200020102020
grewheldshrank

The same series as a ribbon — one cell per year, darker for more. The line above answers how much; this answers when.

Other research institutions in Concord

All research institutions in Concord

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners are in the interactive view on the map.