A5054133956- Magnetic confinement fusion research
- Superconducting Materials and Applications
- Fusion materials and technologies
- Particle accelerators and beam dynamics
- Air Quality and Health Impacts
- Wind and Air Flow Studies
- Ionosphere and magnetosphere dynamics
- Particle Dynamics in Fluid Flows
- Environmental Toxicology and Ecotoxicology
- Indoor Air Quality and Microbial Exposure
- Laser-Plasma Interactions and Diagnostics
- High-Energy Particle Collisions Research
- Particle physics theoretical and experimental studies
- Infection Control and Ventilation
- Aerosol Filtration and Electrostatic Precipitation
- Particle Detector Development and Performance
- Heavy metals in environment
- Fire dynamics and safety research
- Aquatic Invertebrate Ecology and Behavior
- Wastewater Treatment and Nitrogen Removal
- Recycling and Waste Management Techniques
- Fire Detection and Safety Systems
- Microplastics and Plastic Pollution
- Marine Bivalve and Aquaculture Studies
- Heat Transfer Mechanisms
Chinese Academy of Sciences
2012-2024
Xiamen University
2021-2024
Hefei Institutes of Physical Science
2024
Institute of Plasma Physics
2010-2023
University of Chinese Academy of Sciences
2022
Shanghai Ocean University
2013-2022
Shenzhen Institutes of Advanced Technology
2013-2022
Institute of Engineering Thermophysics
2022
Chinese Academy of Fishery Sciences
2022
Ministry of Agriculture and Rural Affairs
2022
Exposure to specific airborne bacteria indoors is linked infectious and noninfectious adverse health outcomes. However, the sources origins of suspended in indoor air are not well understood. This study presents evidence for elevated concentrations due human occupancy, investigates these bacteria. Samples were collected a university classroom while occupied when vacant. The total particle mass concentration, bacterial genome phylogenetic populations characterized indoor, outdoor, ventilation...
The role of human occupancy as a source indoor biological aerosols is poorly understood. Size-resolved concentrations total and particles in air were quantified classroom under occupied vacant conditions. Per-occupant emission rates estimated through mass-balance modeling approach, the microbial diversity outdoor during was determined via rDNA gene sequence analysis. Significant increases particle mass bacterial genome observed period compared to case. These varied magnitude with size ranged...
Experiments investigating particle resuspension from human activities were conducted in a full-scale experimental chamber. The experiments tested three types of flooring (vinyl tiles, new and old level-loop carpets) two ventilation configurations (ceiling side wall supply systems). floorings seeded with 0.1–10 μ m test particles. airborne concentration was measured by an array optical counters (OPCs) the Resuspension rates estimated size ranges 0.8–1, 1.0–2.0, 2.0–5.0, 5.0–10 μm ranging...
Human walking influences indoor air quality mainly by resuspending dust particles settled on the floor. This study characterized walking-induced particle resuspension as a function of flooring type, relative humidity (RH), surface loading, and size using consistent mechanism. Five types flooring, including hardwood, vinyl, high-density cut pile carpet, low-density loop were tested with two levels RH (40% 70%) loading (2 8 g/m(2) ), respectively. Resuspension fraction ra (fraction resuspended...
As a new type of environmental pollutant, microplastics (MPs) can adsorb residual organochlorine pesticides (OCPs) in the soil and pose severe threat to ecosystems. To understand interaction between MPs OCPs, sorption two kinds including hexachlorocyclohexanes (HCHs) dichlorodiphenyltrichloroethanes (DDTs), on polyethylene (PE) suspension was studied through kinetics isotherm models. The effects solution/soil ratio diameter were examined. kinetic experiment results show that equilibrium 12...
Abstract Resuspension experiments were performed in a single-family residence. by human activity was found to elevate the mass concentration of indoor particulate matter with an aerodynamic diameter less than 10 µm (PM10) average 2.5 times as high background level. As summarized from 14 experiments, estimated PM10 resuspension rate person walking on carpeted floor (1.4 ± 0.6) × 10−4 hr−1. The residence time for PM air following 2 hr and 3 2-μm tracer particles. However, experimental results...
A knotty issue concerning the poor mechanical properties exists in porogen leaching approach to porous scaffolds, despite its advantage tuning pore structure. To address this hurdle, solid state extrusion (SSE) combined with was utilized engineer scaffolds of poly(lactic acid) (PLA). Advances introduced by poly(ethylene glycol) (PEG) caused PLA ductile be processed and, on other hand, enabled formation interconnected pores. Thus, a well-interconnected architecture high connectivity exceeding...
Recent experiments on EAST have achieved the first long pulse H-mode (61 s) with zero loop voltage and an ITER-like tungsten divertor, demonstrated access to broad plasma current profiles by increasing density in fully-noninductive lower hybrid current-driven discharges. These discharges reach wall thermal particle balance, exhibit stationary good confinement (H98y2 ~ 1.1) low core electron transport, are only possible optimal active cooling of armors. In separate experiments, was...
Abstract Since the last IAEA-Fusion Energy Conference, Experimental Advanced Superconducting Tokamak (EAST) research program has been, in support of ITER and CFETR, focused on development terms long-pulse steady-state (fully noninductive) high beta H-mode scenario with active controls stationary transient divertor heat particle fluxes. The operational domain plasma been significantly extended ITER-like tungsten mono-block divertor, control heating schemes. EAST achieved several important...
In this work, particles detachment, resuspension and transport due to indoor human walking were studied numerically experimentally. The stepping motions of the foot, down up, modeled using a combination two effective circular disks. flow generated by squeezing film at shoe–floor interface was assumed be laminar corresponding velocity field evaluated. outside foot based on wall jet theory. effects adhesion force surface roughness included in analysis. Models for particle detachment developed....
Energy transport analyses of the DIII-D high- EAST-demonstration discharges have been performed using TGYRO package with TGLF turbulent and NEO neoclassical models under OMFIT integrated modeling framework. Ion energy is shown to be dominated by ion temperature profiles predicted agree closely experimental measured for these discharges. largely insensitive reductions in flow shear stabilization. The Shafranov shift play a role suppression below level. Electron under-predicted significant...
Abstract Recently, the first ever 100 s long, steady-state H-mode discharge with good control of impurities, core and edge MHD stabilities, heat exhaust was demonstrated in Experimental Advanced Superconducting Tokamak (EAST) using ITER-like (International Reactor) tungsten upper divertor. Using both radio frequency (RF) power neutral beam injection (NBI) heating, EAST has fully non-inductive scenarios an extension fusion performance at high density low rotation: β P ∼ 2.5, N 2.0, H 98,y2...
Abstract The compatibility of efficient divertor detachment with high-performance core plasma is vital to the development magnetically controlled fusion energy. joint research on EAST and DIII-D tokamaks demonstrates successful integration excellent confinement quality, a milestone towards solving critical plasma–wall-interaction (PWI) issue core-edge for ITER future reactors. In EAST, actively partial T et,div ∼ 5 eV around strike point H 98 > 1 in different H-mode scenarios including...
Abstract This paper presents the progress in long—pulse operation of electron cyclotron (EC) system and achievements high—electron temperature plasmas by combined EC lower hybrid (LH) waves heating since was built 2015. An up to 12 keV with a duration over 100 s realized simultaneous LH at line-averaged density <?CDATA ${\bar n_{\text{e}}}$?> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mrow> <mml:msub> <mml:mover> <mml:mi>n</mml:mi> <mml:mo>ˉ</mml:mo>...
The identification of members the Onchidiidae is based on morphological characters; this often time-consuming and can be inconclusive. In order to explore species diversity onchidiids in China, we provide a phylogeny constructed using partial sequences two mitochondrial genes (16S rRNA COI) one nuclear ribosomal RNA gene (28S rRNA) from 32 samples comprising five genera. topology, both Bayesian Maximum Likelihood inference methods, showed that taxa clustered main groups six species, which...
Alfven Eigenmodes are destabilized at the DIII-D pedestal during transient beta drops in high poloidal discharges with internal transport barriers (ITBs), driven by n=1 external kink modes, leading to energetic particle losses. There two different scenarios thermal recovery phase: bifurcation (two instability branches frequencies) or without (single branch). We use reduced MHD equations a full 3D system, coupled of density and parallel velocity moments for particles as well geodesic acoustic...
Abstract Improved confinement at the low q 95 < 3.5 operation regime with fishbone instability compared to sawtooth oscillation has been observed and investigated on EAST under dominant electron heating condition a tungsten divertor. The formation of an internal transport barrier in ion thermal channel strongly correlates excitation fishbone, accompanied by reduced particle outward core region identified central peaked density profile. Current distribution is found change from monotonic...
Abstract BOUT++ turbulence simulations are conducted for a 60 s steady-state long pulse high β p EAST grassy ELM discharge. linear show that the unstable mode spectrum covers range of toroidal numbers from low- n ( = 10–15) peeling–ballooning modes (P–B) to high- 40–80) drift-Alfvén instabilities. Nonlinear crash is triggered by peeling and fluctuation generated at peak pressure gradient position radially spread outward into scrape-off-layer, even though instabilities dominate growth phase....
Coastal systems experience diel fluctuation of pCO2 and cadmium (Cd) pollution; nevertheless, the effect fluctuating on Cd biotoxicity is poorly known. In this study, we initially performed isotopically enriched organism bioassay to label Tigriopus japonicus with 113Cd (5 μg/L) determine accumulation rate constant (kaccu) under ambient (400 μatm) steadily (1000 fluctuatingly elevated ± 600 conditions for 48 h. Next, T. was interactively subjected above exposures at (control, 5, 500...
The Lower Hybrid (LH) wave is widely used in existing tokamaks for tailoring current density profile or extending pulse duration to steady-state regimes.Its high efficiency makes it particularly attractive a fusion reactor, leading consider this purpose ITER tokamak.Nevertheless, if basics of the LH tokamak plasma are well known, quantitative modeling experimental observations based on first principles remains highly challenging exercise, despite considerable numerical efforts achieved so...