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Company · Sunnyvale · United States

4C Air (United States)

4cair.comROR OpenAlex
Research works
3
▲ 31% vs 2018-21
Citations
253
80.6 per fractional work
Top-10% rate
1.9%
all institutions 10.0%
Open access
64%
world 40%
International
33%
world 18%
4C Air (United States)

Not ranked overall: 4C Air (United States) is under the volume floor below which a citation excellence rate is noise. Not ranked is not the same as ranked last.

Which fields of science does 4C Air (United States) work in?

In all years, 62% of research at 4C Air (United States) is in Physical Sciences, 19% in Health Sciences. Its largest fields are Computer Science (25%), Engineering (25%), Medicine (19%).

Physical Sciences: 2 fractional works · 62.5% of its workComputer Science: 1 fractional works · 25.0% of its workEngineering: 1 fractional works · 25.0% of its workPhysics and Astronomy: 0 fractional works · 6.2% of its workEarth and Planetary Sciences: 0 fractional works · 3.1% of its workEnvironmental Science: 0 fractional works · 3.1% of its workHealth Sciences: 1 fractional works · 18.8% of its workMedicine: 1 fractional works · 18.8% of its workSocial Sciences: 0 fractional works · 15.6% of its workBusiness, Management and Accounting: 0 fractional works · 9.4% of its workPsychology: 0 fractional works · 6.2% of its workLife Sciences: 0 fractional works · 3.1% of its workBiochemistry, Genetics and Molecular Biology: 0 fractional works · 3.1% of its workALL ITS WORK4C Air (UnitedStates)3fractional works, all years
Life Sciences3%Physical Sciences62%Health Sciences19%Social Sciences16%

Each ring splits the one inside it: the four domains of science, their fields. Size is fractional works in all years. Every slice is a page; the interactive view zooms down to single topics and colours each by how much more of it this institution does than the world.

Its 4 domains and 9 fields, with their numbers
    1. Computer Science125.0%
    2. Engineering125.0%
    3. Physics and Astronomy06.2%
    4. Earth and Planetary Sciences03.1%
    5. Environmental Science03.1%
    1. Medicine118.8%
    1. Business, Management and Accounting09.4%
    2. Psychology06.2%
    1. Biochemistry, Genetics and Molecular Biology03.1%
All of science, and how each field's share has moved since 1950: the Science domain explorer

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.

Biochemistry, Genetics and Molecular Biology: 0.78× its world share, 0 worksBiochemistry, Geneti…Computer Science: 6.05× its world share, 1 worksComputer ScienceEarth and Planetary Sciences: 3.81× its world share, 0 worksEarth and Planetary …Engineering: 0.98× its world share, 0 worksEngineeringPhysics and Astronomy: 1.34× its world share, 0 worksPhysics and AstronomyMedicine: 0.22× its world share, 0 worksMedicineBusiness, Management and Accounting: 6.49× its world share, 0 worksBusiness, Management…1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Business, Management and Accounting, 6.5×. Every wedge is a field page.

All 7 fields, with their numbers
  1. Business, Management and Accounting6.49×0 works
  2. Computer Science6.05×1 works
  3. Earth and Planetary Sciences3.81×0 works
  4. Physics and Astronomy1.34×0 works
  5. Engineering0.98×0 works
  6. Biochemistry, Genetics and Molecular Biology0.78×0 works
  7. Medicine0.22×0 works

What are the most cited papers from 4C Air (United States)?

The most cited paper from 4C Air (United States) is "Can N95 Respirators Be Reused after Disinfection? How Many Times?" (Lei Liao, Xiao Wang, Mervin Zhao et al., 2020), with 450 citations. Next come "Household Materials Selection for Homemade Cloth Face Coverings and Their Filtration Efficiency Enhancement with Triboelectric Charging" (283) and "Mid-fidelity approach to aerodynamic simulations of unconventional VTOL aircraft configurations" (136).

Most cited papers
#PaperReleasedCitations
1 Can N95 Respirators Be Reused after Disinfection? How Many Times? Lei Liao, Xiao Wang, Mervin Zhao et al. · ACS Nano 5 May 2020 450
2 Household Materials Selection for Homemade Cloth Face Coverings and Their Filtration Efficiency Enhancement with Triboelectric Charging Mervin Zhao, Lei Liao, Xiao Wang et al. · Nano Letters Open access 2 Jun 2020 283
3 Mid-fidelity approach to aerodynamic simulations of unconventional VTOL aircraft configurations Matteo Tugnoli, D. Montagnani, Monica Syal et al. · Aerospace Science and Technology Open access 12 May 2021 136
4 Decontamination of SARS-CoV‑2 and Other RNA Viruses from N95 Level Meltblown Polypropylene Fabric Using Heat under Different Humidities Rafael Kroon Campos, Jing Jin, Grace H. Rafael et al. · ACS Nano Open access 21 Sep 2020 81
5 A scalable method of applying heat and humidity for decontamination of N95 respirators during the COVID-19 crisis Loïc Anderegg, Cole Meisenhelder, Chiu Oan Ngooi et al. · PLoS ONE Open access Jul 2020 69
All 11 most cited papers, with filters and sorting

Which research topics does 4C Air (United States) publish most on?

By volume in 2022-now: Sharing Economy and Platforms, Recommender Systems and Techniques, Mobile Crowdsensing and Crowdsourcing and Advanced Neural Network Applications.

Sharing Economy and Platforms: 0 fractional worksRecommender Systems and Techniques: 0 fractional worksMobile Crowdsensing and Crowdsourcing: 0 fractional worksAdvanced Neural Network Applications: 0 fractional worksWireless Body Area Networks: 0 fractional worksElectromagnetic Fields and Biological Effects: 0 fractional worksRobotics and Sensor-Based Localization: 0 fractional worksSpaceflight effects on biology: 0 fractional worksAir Traffic Management and Optimization: 0 fractional works
MarketingInformation SystemsComputer Science ApplicationsComputer Vision and Pattern Recognition4 others

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

  1. 1 Sharing Economy and Platforms Marketing 0 works
  2. 2 Recommender Systems and Techniques Information Systems 0 works
  3. 3 Mobile Crowdsensing and Crowdsourcing Computer Science Applications 0 works
  4. 4 Advanced Neural Network Applications Computer Vision and Pattern Recognition 0 works
  5. 5 Wireless Body Area Networks Biomedical Engineering 0 works
  6. 6 Electromagnetic Fields and Biological Effects Biophysics 0 works
  7. 7 Robotics and Sensor-Based Localization Aerospace Engineering 0 works
  8. 8 Spaceflight effects on biology Physiology 0 works
  9. 9 Air Traffic Management and Optimization Aerospace Engineering 0 works
  10. 10 Ionosphere and magnetosphere dynamics Astronomy and Astrophysics 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 available63.8%not open36.2%

World: 40% of research is openly available.

with international co-authors32.9%domestic only67.1%

World: 18% is written across borders.

How has 4C Air (United States)'s research output changed?

Output in 2022-2025 was 31% higher than in 2018-2021.

still counting2025
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 Sunnyvale

All research institutions in Sunnyvale

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners have tabs of their own, above.

Discussion

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