J. Zheng

ORCID: 0000-0003-1833-3260
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About
Contact & Profiles
Research Areas
  • Atmospheric chemistry and aerosols
  • Air Quality and Health Impacts
  • Photovoltaic System Optimization Techniques
  • Solar Radiation and Photovoltaics
  • Atmospheric Ozone and Climate
  • Atmospheric and Environmental Gas Dynamics
  • Solar Thermal and Photovoltaic Systems
  • Photovoltaic Systems and Sustainability
  • Maritime Transport Emissions and Efficiency
  • Vehicle emissions and performance
  • Simulation and Modeling Applications
  • Advanced Chemical Sensor Technologies
  • Atmospheric aerosols and clouds
  • Pneumonia and Respiratory Infections
  • Air Quality Monitoring and Forecasting
  • Probiotics and Fermented Foods
  • Evaluation Methods in Various Fields
  • Gut microbiota and health
  • Indoor Air Quality and Microbial Exposure
  • Energy Load and Power Forecasting

Jinan Maternity And Care Hospital
2025

Tsinghua University
2023-2024

Texas A&M University
2008-2014

Nanjing University of Information Science and Technology
2014

Abstract. Submicron aerosol was analyzed during the MILAGRO field campaign in March 2006 at T0 urban supersite Mexico City with a High-Resolution Time-of-Flight Aerosol Mass Spectrometer (HR-ToF-AMS) and complementary instrumentation. concentrations, diurnal cycles, size distributions of inorganic organic species are similar to results from CENICA April 2003 (OA) comprising about half fine PM mass. Positive Matrix Factorization (PMF) analysis high resolution OA spectra identified three major...

10.5194/acp-9-6633-2009 article EN cc-by Atmospheric chemistry and physics 2009-09-11

Abstract. The volatile organic compound (VOC) distribution in the Mexico City Metropolitan Area (MCMA) and its evolution as it is uplifted transported out of MCMA basin was studied during 2006 MILAGRO/MIRAGE-Mex field campaign. results show that morning hours city center, VOC dominated by non-methane hydrocarbons (NMHCs) but with a substantial contribution from oxygenated compounds (OVOCs), predominantly primary emissions. Alkanes account for large part NMHC terms mixing ratios. In...

10.5194/acp-10-2353-2010 article EN cc-by Atmospheric chemistry and physics 2010-03-08

Abstract Because of the importance HONO as a radical reservoir, consistent and accurate measurements its concentration are needed. As part SHARP (Study Houston Atmospheric Radical Precursors), time series were obtained by six different measurement techniques on roof Moody Tower at University Houston. Techniques used long path differential optical absorption spectroscopy (DOAS), stripping coil‐visible photometry (SC‐AP), (LOPAP ® ), mist chamber/ion chromatography (MC‐IC), quantum...

10.1002/2013jd020287 article EN Journal of Geophysical Research Atmospheres 2014-04-10

Abstract. Measurements of organic carbon compounds in both the gas and particle phases made upwind, over downwind North America are synthesized to examine total observed (TOOC) atmosphere this region. These include measurements aboard NOAA WP-3 BAe-146 aircraft, research vessel Ronald H. Brown, at Thompson Farm Chebogue Point surface sites during summer 2004 ICARTT campaign. Both winter 2002 Pittsburgh Air Quality Study also included. Lastly, spring observations Trinidad Head, CA, March 2006...

10.5194/acp-8-2007-2008 article EN cc-by Atmospheric chemistry and physics 2008-04-08

Abstract. Simulations using the fully coupled WRF/Chem (Weather Research and Forecasting – Chemistry) model at 3-km resolution in Mexico City have been performed to examine temperature, relative humidity, wind, gaseous criteria pollutants (CO, O3, NO, NO2, NOy) during MCMA-2006/MILAGRO field campaign. Comparison of simulations with measurements from ground-based air quality monitoring network (RAMA) is presented. The resolves reasonably well observed surface humidity wind speed; however,...

10.5194/acp-9-3777-2009 article EN cc-by Atmospheric chemistry and physics 2009-06-11

infection or allergic constitution. In recent years, many studies have attempted to explore the effects of human microbiome-based interventions on regulation host immunity and prevention respiratory tract infections. However, heterogeneous inconsistent reproducibility between resulted in opinions among physicians terms recommendation probiotics patients. As an evidence-based research method recommended by academia probiotic finished product is effective promote development industry. The...

10.3389/fped.2024.1509902 article EN cc-by Frontiers in Pediatrics 2025-01-28

Abstract. The sensitivity of ozone production to precursor emissions was investigated under five different meteorological conditions in the Mexico City Metropolitan Area (MCMA) during MCMA-2006/MILAGRO field campaign using gridded photochemical model CAMx driven by observation-nudged WRF meteorology. Precursor were constrained comprehensive data from and routine ambient air quality monitoring network. Simulated plume mixing transport examined comparing with measurements G-1 aircraft...

10.5194/acpd-9-23419-2009 preprint EN cc-by 2009-11-03

Abstract. The volatile organic compound (VOC) distribution in the Mexico City Metropolitan Area (MCMA) and its evolution as it is uplifted transported out of MCMA basin was studied during 2006 MILAGRO/MIRAGE-Mex field campaign. results show that morning hours city center, VOC dominated by non-methane hydrocarbons (NMHCs) but with a substantial contribution from oxygenated compounds (OVOCs), predominantly primary emissions. Alkanes account for large part NMHC terms mixing ratios. In...

10.5194/acpd-9-24085-2009 preprint EN cc-by 2009-11-12

Abstract. Volatile organic compounds (VOCs) were measured by proton transfer reaction – mass spectrometry (PTR-MS) on a rooftop in the urban mixed residential and industrial area North Northeast of downtown Mexico City as part Megacity Initiative Local Global Research Observations (MILAGRO) 2006 field campaign. Thirty eight individual masses monitored during campaign many species quantified including methanol, acetaldehyde, toluene, sum C2 benzenes, C3 acetone, isoprene, benzene, ethyl...

10.5194/acpd-8-11821-2008 preprint EN cc-by 2008-06-13

Abstract. Measurements of organic carbon compounds in both the gas and particle phases measured upwind, over downwind North America are synthesized to examine total observed (TOOC) this region. These include measurements made aboard NOAA WP-3 BAe-146 aircraft, research vessel Ronald H. Brown, at Thompson Farm Chebogue Point surface sites during summer 2004 ICARTT campaign. Both winter 2002 Pittsburgh Air Quality Study also included. Lastly, spring observations Trinidad Head, CA, March 2006...

10.5194/acpd-7-17825-2007 preprint EN cc-by 2007-12-13

Effective screening of factors influencing photovoltaic electrical yield is crucial for accurate forecasting, especially fishery plant facing geographical challenges. This paper investigates and its main under various cloud cover conditions through in-situ observations. Findings reveal distinct variations in with different clearness index. DSR, panel temperature, VPD jointly impact yield. When temperature below 30°C, capacity increases by 10 kW·h every 1 W·m−2 rise DSR. Moreover, a kPa...

10.2139/ssrn.4721439 preprint EN 2024-01-01

The high demand for low-carbon energy sources to mitigate climate change has prompted a rapid increase in ground-mounted solar parks. implementation of photovoltaic (PV) significantly impacted the local and ecosystem, which are both poorly understood. To investigate effects typical park on Gobi ecological system, microclimate soil thermal regimes were measured year-round under between PV arrays, at an applied sited Xinjiang, China. Our results demonstrated their seasonal diurnal changes....

10.5194/egusphere-egu24-195 preprint EN 2024-03-08

Abstract. Measurements of hydroxyl (OH) and hydroperoxy (HO2) radicals were made during the Mexico City Metropolitan Area (MCMA) field campaign as part MILAGRO (Megacity Initiative: Local Global Research Observations) project March 2006. These measurements provide a unique opportunity to test current models atmospheric ROx (OH+HO2+RO2) photochemistry under polluted conditions. A zero-dimensional box model based on Regional Atmospheric Chemical Mechanism (RACM) was constrained by 10-min...

10.5194/acpd-9-9823-2009 preprint EN cc-by 2009-04-17
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