A5044453577- Air Quality and Health Impacts
- Atmospheric chemistry and aerosols
- Air Quality Monitoring and Forecasting
- Vehicle emissions and performance
- Spectroscopy Techniques in Biomedical and Chemical Research
- COVID-19 impact on air quality
- Microfluidic and Capillary Electrophoresis Applications
- Optical Network Technologies
- Advanced Photonic Communication Systems
- Photonic and Optical Devices
- Monoclonal and Polyclonal Antibodies Research
- Immunotherapy and Immune Responses
- Environmental Policies and Emissions
- Microbial Metabolic Engineering and Bioproduction
- Atmospheric Ozone and Climate
- Water Quality Monitoring and Analysis
- Odor and Emission Control Technologies
- T-cell and B-cell Immunology
- Innovative Microfluidic and Catalytic Techniques Innovation
- Photoacoustic and Ultrasonic Imaging
- RNA Research and Splicing
- Biofuel production and bioconversion
- Atmospheric aerosols and clouds
- Enzyme Catalysis and Immobilization
- Protein Interaction Studies and Fluorescence Analysis
Air Force Medical University
2024
Zhejiang Environmental Monitoring Center
2019-2023
Princeton University
2023
Chang'an University
2021-2022
University of Wisconsin–Madison
2020
Georgia Institute of Technology
2020
Massachusetts Institute of Technology
2020
National Institute of Clean and Low-Carbon Energy
2019
Chinese University of Hong Kong
2012-2013
Tianjin University
2005-2013
Abstract. Black carbon (BC), which is formed from the incomplete combustion of fuel sources (mainly fossil fuel, biofuel and open biomass burning), a chemically inert optical absorber in atmosphere. It has significant impacts on global climate, regional air quality human health. During transportation, its physical chemical characteristics as well change dramatically. To investigate properties BC (i.e., mass concentration, properties) during intra-regional transport between southern edge...
Nationwide severe air pollution has prompted China to mandate the adoption of ultralow emissions (ULE) control technologies at all its coal-fired power plants by 2020. This process accelerated greatly since 2014 and, combined with operational adjustments related overcapacity, reduced nitrogen oxides (NO x), sulfur dioxide (SO2), and particulate matter (PM). Yet quantitative understanding ULE benefits is poor. Using detailed data from 38 units 17 plants, corresponding 10 combinations...
Dendritic cells (DCs) are highly effective antigen-presenting that shape immune responses. Vaccines deliver antigen to the DCs can harness their power. DC surface lectins recognize glycans not typically present on host tissue facilitate uptake and presentation. target these should offer improved delivery, but efficacy will depend how lectin targeting influences T cell subtypes result. We examined structure signaling from C-type DC-SIGN (dendritic cell-specific intercellular adhesion...
Abstract The less improvement of ambient visibility suspects the government’s efforts on alleviating PM 2.5 pollution. COVID-19 lockdown reduced and increased in Wuhan. Compared to pre-lockdown period, concentration decreased by 39.0 μg m −3 , dominated NH 4 NO 3 mass reduction (24.8 ) during period. threshold corresponding 10 km (PTV varied 54–175 an hourly 54 was recommended prevent haze occurrence. measures elevated PTV 9–58 as decreases scattering efficiency optical hygroscopicity. 107%,...
Silicon photonics which is compatible with mature complementary metal oxide semiconductor (CMOS) fabrication process has been extensively demonstrated for monolithic integration of photonic and electrical circuits. We show that an integrated silicon Mach-Zehnder modulator (MZM) may be used advanced modulation formats despite the nonlinear dependence refractive index change applied voltage in free-carrier depletion modulator. experimentally use a MZM direct detection optical orthogonal...
Abstract Living cells organize a wide variety of processes through compartmentalization into membraneless organelles, known as biomolecular condensates. Given their ubiquitous presence across spectrum different organisms and cell types, condensates are increasingly considered to offer great potential for biotechnological applications. However, native remain difficult harness engineering applications, both due intertwined mechanisms assembly compositional control, disruptions cellular...
Fine particle (PM2.5) acidity greatly affects the formation of secondary aerosol, and drivers PM2.5 pH variation are vital in understanding its effects. Moderate was found Wuhan, a megacity Central China, wherein 80% hold values ranging from 2–4. Total ammonia (NHx) sulfate contributed 79.1–93.7% to changes spring winter, while relative humidity largest contributor (33.7–36.3%) summer fall. By sensitivity simulations, remained acidic with less than 0.5 units spring, fall foreseeable future...
With the rapid increase of vehicle population in Guanzhong Plain (GZP), fine particulate matter (PM2.5) emitted by vehicles has an impact on regional air quality and public health. The spatial distribution primary secondary PM2.5 concentrations from GZP January July 2017 was simulated this study using Weather Research Forecasting (WRF) model California Puff (CALPUFF) model. contributions vehicle-related emission sources to total were also calculated. results show that although emissions...
Optical signal-to-noise ratio (OSNR) monitoring is essential for control and management of dynamic optical networks. Small footprint, low cost, less power consumption are always desirable such system. In this paper, we demonstrate an integrated dispersion-insensitive in-band OSNR monitor based on a compact silicon microdisk resonator (MDR) with only 5-μm radius. The MDR (Q ~ 54 000) functions as ultranarrow bandpass filter in the measurement OSNR. performance evaluated 10-Gb/s return-to-zero...
A five layer microfluidic chip which is designed and fabricated for interstitial fluid (ISF) transdermal extraction, collection, measurement toward the application of continuous real-time glucose monitoring presented in this paper. The consists a Venturi tube generating vacuum ISF extraction manipulation, novel volume sensor electrolytic normal saline input control measurement, pneumatic valves management, access ports integration. output tested, less than 88kPa has been achieved, when...
Abstract Regional submicron particles (PM 1 ) compositions, sources, and interaction are still not clear as the desynchrony in observation. This study focused on PM at five sites synchronously North China Plain Central during January 2018. The average mass concentrations decreased from north to south, with higher values Luohe (125 ± 59.4 μg m −3 ), followed by borderline cities (54.1–93.3 a south site of Wuhan (63.6 21.5 ). Organic matter (41.8%–51.0%) secondary inorganic aerosols (SIAs;...
A new type detecting device was developed according to the demand of liquid single particle size analysis. Based on side scatter detection technology, used a semiconductor laser as light source. By introduction hydrodynamics, sample particles were focused sequentially through measuring beam. The lateral scattering lights received by high-sensitivity avalanche photodiode. So particles’ can be achieved analyzing scattered pulse signal magnitude. Experiment results showed that detect 0.35μm...
A novel minimally invasive way to measure blood glucose concentration is proposed by combining interstitial fluid transdermal extraction and surface plasma resonance (SPR) detecting. 55K Hz low-frequency ultrasound pulse applied for less than 30 seconds enhance the skin permeability then extracted out of vacuum. The mathematical model express correlation between also developed considering changes conductivity. in determined using an optical SPR biological sensor that measures refractive...
Fine particulate matter (PM2.5) emitted by vehicles affects regional air quality and public health. This study simulated the spatial distribution of primary secondary PM2.5 concentrations from in Guanzhong Plain January July 2017. The contributions vehicle-related exhaust emission, brake wear, tire gas-particle chemical conversion tailpipe gaseous precursors to total were also calculated. results show that compared with those January, PM2.5, NOx, SO2 emissions increased 10.78%, 1.96%,...