Per Halkjær Nielsen
Per Halkjær Nielsen publishes mostly in Pollution, Molecular Biology and Ecology, on topics such as Wastewater Treatment and Nitrogen Removal, Microbial Community Ecology and Physiology and Genomics and Phylogenetic Studies.
- World rank
- #136,146 of 1,633,909 ranked researchers
- Rank in Denmark
- #1,021 of 10,734
- Works
- 180
- Citations
- 811
- Citations per work
- 4.5
What does Per Halkjær Nielsen research?
Shares of their own output, by the field each of their topics belongs to. The grey slice is everything not listed.
- 1Pollution15% of their works
- 2Molecular Biology13% of their works
- 3Ecology8% of their works
- 4Organic Chemistry6% of their works
- 5Industrial and Manufacturing Engineering6% of their works
- 6Water Science and Technology4% of their works
Research topics
Which keywords describe Per Halkjær Nielsen's research?
The keywords of their largest research topics: Wastewater Treatment, Anammox Bacteria, Nitrogen-Cycling Network, Marine Microbes, Microbial Biogeography, Microbial Communities, RNA-Seq and sequence alignment.
- Methane Oxidation
- Recovery
- Short-Chain Fatty Acids
- Nutrient Removal
- Biogas Production
- sequence alignment
- Microbial Communities
- Marine Microbes
- Anammox Bacteria
- Wastewater Treatment
- Nitrogen-Cycling Network
- Microbial Biogeography
- RNA-Seq
- Anaerobic Digestion
- Constructed Wetlands
- Gut Microbiota
- Phosphorus
- Anaerobic
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 18 words, with their numbers
- Wastewater Treatment332 topics
- Anammox Bacteria271 topic
- Nitrogen-Cycling Network271 topic
- Marine Microbes131 topic
- Microbial Biogeography131 topic
- Microbial Communities82 topics
- RNA-Seq81 topic
- sequence alignment81 topic
- Anaerobic Digestion61 topic
- Biogas Production61 topic
- Constructed Wetlands61 topic
- Nutrient Removal61 topic
- Gut Microbiota51 topic
- Short-Chain Fatty Acids51 topic
- Phosphorus41 topic
- Recovery41 topic
- Anaerobic31 topic
- Methane Oxidation31 topic
Where does Per Halkjær Nielsen work?
Per Halkjær Nielsen's main affiliation in the publication record is Aalborg University, Denmark.
How many publications and citations does Per Halkjær Nielsen have?
Science Explorer counts 180 works and 811 citations for Per Halkjær Nielsen, ranking #136,146 of 1,633,909 researchers worldwide on the composite 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 are in the interactive view on the map. Is this your page? Request a correction or removal.