Science Explorer Back to mapMap
Discussion
Researcher · University of America · United States

Robert E. O’Brien

Robert E. O’Brien publishes mostly in Environmental Engineering, Spectroscopy and Applied Mathematics, on topics such as Atmospheric chemistry and aerosols, Air Quality Monitoring and Forecasting and Molecular spectroscopy and chirality.

OpenAlex
World rank
#4,253,454
of 7,710,434 ranked researchers
Rank in United States
#1,145,730
of 1,627,098
Works
47
Citations
320
Citations per work
6.8
h-index
8
i10-index 7Top 70% in Environmental Engineering
Robert E. O’Brien

What does Robert E. O’Brien research?

Robert E. O’Brien's work is mostly in Chemistry (12%), Environmental Science (8%), Mathematics (7%).

Everything else: 29 works · 61.9% of their workPhysical Sciences: 18 works · 38.1% of their workChemistry: 6 works · 12.4% of their workSpectroscopy: 4 works · 8.0% of their workOrganic Chemistry: 2 works · 4.4% of their workEnvironmental Science: 4 works · 8.0% of their workEnvironmental Engineering: 4 works · 8.0% of their workMathematics: 3 works · 7.1% of their workApplied Mathematics: 3 works · 7.1% of their workEarth and Planetary Sciences: 2 works · 5.3% of their workAtmospheric Science: 2 works · 5.3% of their workEngineering: 2 works · 5.3% of their workControl and Systems Engineering: 2 works · 5.3% of their workTHEIR WORKRobert E. O’Brien47works
Physical Sciences38%

Their six largest subfields, inside their fields and domains; the grey slice is everything else they publish. The interactive view splits every one of their works down to single topics.

The fields and subfields, with their numbers
  1. Everything else2961.9%
    1. Chemistry612.4%
    2. Environmental Science48.0%
    3. Mathematics37.1%
    4. Earth and Planetary Sciences25.3%
    5. Engineering25.3%
  1. 1Environmental Engineering8% of their works
  2. 2Spectroscopy8% of their works
  3. 3Applied Mathematics7% of their works
  4. 4Atmospheric Science5% of their works
  5. 5Control and Systems Engineering5% of their works
  6. 6Organic Chemistry4% of their works

Research topics

Which keywords describe Robert E. O’Brien's research?

The keywords of their largest research topics: Controllability, Air Quality Monitoring, Atmospheric Aerosols, Black Carbon, Low-Cost Sensors, Absolute Configuration, Boundary Control and Chiroptical Spectroscopy.

Size is their works in the topics tagged with each word, from their 8 largest topics. Each links to the topic it comes from most.

All 17 words, with their numbers
  1. Controllability72 topics
  2. Air Quality Monitoring61 topic
  3. Atmospheric Aerosols61 topic
  4. Black Carbon61 topic
  5. Low-Cost Sensors61 topic
  6. Absolute Configuration41 topic
  7. Boundary Control41 topic
  8. Chiroptical Spectroscopy41 topic
  9. Composition Operators41 topic
  10. Deformations41 topic
  11. Distributed Parameter Systems41 topic
  12. Hom-Lie Algebras41 topic
  13. Weighted Spaces41 topic
  14. Boundary Value Problems31 topic
  15. Chiral Separation31 topic
  16. Fractional Differential Equations31 topic
  17. Liquid Chromatography31 topic

Where does Robert E. O’Brien work?

Robert E. O’Brien's main affiliation in the publication record is University of America, United States.

How many publications and citations does Robert E. O’Brien have?

OpenAlex counts 47 works and 320 citations for Robert E. O’Brien, an h-index of 8, ranking #4,253,454 of 7,710,434 researchers worldwide on the quality score.

Ranked on field-normalised excellence (50%), output (30%) and citations (20%). Counts come from OpenAlex author records, which occasionally merge different people who share a name or split one person into several.

Papers, co-authors, who cited this work and researchers on the nearest topics have tabs of their own, above. Is this your page? Claim it with your ORCID iD, or request a correction or removal.

Discussion

Ask a question or share a note about Robert E. O’Brien. Posts are plain text and can be reported.