Science Explorer Back to mapMap
Discussion
Researcher · Soka University · Japan

Chiaki Niwa

Chiaki Niwa publishes mostly in Industrial and Manufacturing Engineering, Building and Construction and Pollution, on topics such as Anaerobic Digestion and Biogas Production, Wastewater Treatment and Nitrogen Removal and Municipal Solid Waste Management.

OpenAlex
World rank
#1,829,166
of 7,710,434 ranked researchers
Rank in Japan
#31,861
of 383,136
Works
22
Citations
1.5k
Citations per work
68.4
h-index
11
i10-index 12Top 42% in Industrial and Manufacturing Engineering (Environmental Science)
Chiaki Niwa

What does Chiaki Niwa research?

Chiaki Niwa's work is mostly in Environmental Science (49%), Engineering (18%).

Physical Sciences: 15 works · 67.3% of their workEnvironmental Science: 11 works · 48.9% of their workIndustrial and Manufacturing Engineering: 4 works · 20.4% of their workPollution: 2 works · 10.2% of their workEcology: 1 works · 6.1% of their workEnvironmental Engineering: 1 works · 6.1% of their workWater Science and Technology: 1 works · 6.1% of their workEngineering: 4 works · 18.4% of their workBuilding and Construction: 4 works · 18.4% of their workEverything else: 7 works · 32.7% of their workTHEIR WORKChiaki Niwa22works
Physical Sciences67%

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. Environmental Science1148.9%
    2. Engineering418.4%
  2. Everything else732.7%
  1. 1Industrial and Manufacturing Engineering20% of their works
  2. 2Building and Construction18% of their works
  3. 3Pollution10% of their works
  4. 4Ecology6% of their works
  5. 5Environmental Engineering6% of their works
  6. 6Water Science and Technology6% of their works

Research topics

Which keywords describe Chiaki Niwa's research?

The keywords of their largest research topics: Renewable Energy, Waste-to-Energy, Anaerobic Digestion, Biogas Production, Sustainability, Anammox Bacteria, Nitrogen-Cycling Network and Municipal Solid Waste.

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 19 words, with their numbers
  1. Renewable Energy122 topics
  2. Waste-to-Energy122 topics
  3. Anaerobic Digestion91 topic
  4. Biogas Production91 topic
  5. Sustainability62 topics
  6. Anammox Bacteria41 topic
  7. Nitrogen-Cycling Network41 topic
  8. Municipal Solid Waste31 topic
  9. Phosphorus31 topic
  10. Recovery31 topic
  11. Waste Management31 topic
  12. Desalination21 topic
  13. Freshwater Mussels21 topic
  14. Invasive Species21 topic
  15. Membrane Technology21 topic
  16. Sustainable Drainage Systems21 topic
  17. Urban Stormwater Management21 topic
  18. Food Composition11 topic
  19. Nutrient Analysis11 topic

Where does Chiaki Niwa work?

Chiaki Niwa's main affiliation in the publication record is Soka University, Japan.

How many publications and citations does Chiaki Niwa have?

OpenAlex counts 22 works and 1,504 citations for Chiaki Niwa, an h-index of 11, ranking #1,829,166 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 Chiaki Niwa. Posts are plain text and can be reported.