Song Guo
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View article: Scattering Characteristics of Submicron Particulate Chemical Components During Winter in Northern and Southern Chinese Cities
Scattering Characteristics of Submicron Particulate Chemical Components During Winter in Northern and Southern Chinese Cities Open
Understanding aerosol chemical components’ roles in light extinction is critical for air quality management and climate mitigation. This study compared PM1 optical properties and chemical compositions in Shanghai (southern China) and Dezho…
View article: Enhancing particle number concentration modelling accuracy in China by incorporating various nucleation parameterization schemes into the CMAQ version 5.3.2 model
Enhancing particle number concentration modelling accuracy in China by incorporating various nucleation parameterization schemes into the CMAQ version 5.3.2 model Open
Particle number concentration (PNC) is a key parameter for assessing particles' effects on public health and climate. Although the Community Multiscale Air Quality (CMAQ) model has been widely used to investigate the particle mass concentr…
View article: Segmental Calibration of Soil–Tool Contact Models for Sustainable Tillage Using Discrete Element Method
Segmental Calibration of Soil–Tool Contact Models for Sustainable Tillage Using Discrete Element Method Open
In support of sustainable agricultural practices and soil conservation in black soil regions, the accurate modeling of soil–machine interactions is essential for optimizing tillage operations and minimizing environmental impacts. To achiev…
View article: Evaluating Simulations of Organic Aerosol Volatility and Degree of Oxygenation in Eastern China
Evaluating Simulations of Organic Aerosol Volatility and Degree of Oxygenation in Eastern China Open
Volatility and oxygen-to-carbon (O/C) molar ratios are critical properties of organic aerosols (OA), influencing their viscosity, hygroscopicity, and light absorption thereby resulting in impacts on air quality and climate. While atmospher…
View article: The HERD calorimeter: prototype response to high energy nuclei
The HERD calorimeter: prototype response to high energy nuclei Open
HERD is a space-borne calorimetric experiment that aims to extend current direct measurements of cosmic rays to the PeV energy range. The main feature of the instrument is its ability to measure particles coming from all directions, with t…
View article: Enhancing particle number concentration modelling accuracy in China by incorporating various nucleation parameterization schemes into the CMAQ version 5.3.2 model
Enhancing particle number concentration modelling accuracy in China by incorporating various nucleation parameterization schemes into the CMAQ version 5.3.2 model Open
Particle number concentration (PNC) is a key parameter for assessing particles’ effects on public health and climate. Although the Community Multiscale Air Quality (CMAQ) model has been widely used to investigate the particle mass concentr…
View article: Modeling simulation of aerosol light absorption over the Beijing–Tianjin–Hebei region: the impact of mixing state and aging processes
Modeling simulation of aerosol light absorption over the Beijing–Tianjin–Hebei region: the impact of mixing state and aging processes Open
The mixing state and aging characteristics of black carbon (BC) aerosols are the key factors in calculating their optical properties and quantifying their impacts on radiation balance and global climate change. Considerable uncertainty sti…
View article: Mechanical properties of vertical-inclined pile foundation for onshore wind turbines
Mechanical properties of vertical-inclined pile foundation for onshore wind turbines Open
This study proposes an innovative Vertical-Inclined Pile Foundation to optimize the bearing performance of onshore wind turbine foundations. The Vertical-Inclined Pile Foundation (VIPF) and Vertical Pile Foundation (VPF) mechanical respons…
View article: Wide-angle solar absorber using only titanium nitride for efficient solar photothermal utilization
Wide-angle solar absorber using only titanium nitride for efficient solar photothermal utilization Open
Solar absorbers efficiently convert solar radiation into thermal energy through photothermal conversion, and are widely used in seawater desalination, energy storage. Titanium nitride (TiN) possesses outstanding absorption and thermal cond…
View article: Emissions and potential tracer screening of semivolatile/intermediate-volatility organic compounds from urban vehicle fleets
Emissions and potential tracer screening of semivolatile/intermediate-volatility organic compounds from urban vehicle fleets Open
Semi-/intermediate volatile organic compounds (S/IVOCs) are important precursors for secondary organic aerosols (SOA) and ozone formation. Vehicle emissions from real-world vehicle fleets are significant anthropogenic source, but their emi…
View article: Influence of objective and perceived exposures to urban nature on people’s happiness
Influence of objective and perceived exposures to urban nature on people’s happiness Open
Exposure to nature influences urban dwellers’ well-being and happiness, thereby impacting urban sustainability. However, urban dwellers are exposed to nature in different ways: indirect exposure through window views, incidental exposure wh…
View article: Impacts of dimethylamine emissions on particle number concentration and cloud condensation nuclei in Beijing
Impacts of dimethylamine emissions on particle number concentration and cloud condensation nuclei in Beijing Open
New particle formation (NPF) is a key source of atmospheric particles and cloud condensation nuclei (CCN). In polluted regions, the nucleation mechanism of sulfuric acid (H 2 SO 4 )-dimethylamine (DMA) is thought to play a crucial role in …
View article: Design and Test of Vertical Axis Rotating Cutters for Cutting Corn Roots and Crown
Design and Test of Vertical Axis Rotating Cutters for Cutting Corn Roots and Crown Open
In this study, the bionic cutter and the multi-curve cutter were designed for cutting crowns and roots, respectively. Two types of cutters were integrated into the device. This integration aims to address the issues of the poor effect of c…
View article: Vertical bearing performance of inclined high-pressure rotary spray pile
Vertical bearing performance of inclined high-pressure rotary spray pile Open
Inclined piles are increasingly adopted in the foundation design of large-scale transmission line towers. Nine inclined pile tests were conducted in red clay soil to investigate the load-bearing and deformation behavior and the load transf…
View article: Performance assessment of the HERD calorimeter with a photo-diode read-out system for high-energy electron beams
Performance assessment of the HERD calorimeter with a photo-diode read-out system for high-energy electron beams Open
The measurement of cosmic rays at energies exceeding 100 TeV per nucleon is crucial for enhancing the understanding of high-energy particle propagation and acceleration models in the Galaxy. HERD is a space-borne calorimetric experiment th…
View article: Experimental Study on Seasonal Ground-Coupled Heat Storage and Harvesting in Cold Regions
Experimental Study on Seasonal Ground-Coupled Heat Storage and Harvesting in Cold Regions Open
In recent years, global efforts toward sustainable energy have intensified, aiming to reduce carbon emissions and boost energy efficiency. Heating in winter and hot water for hygiene are essential, especially in cold climates where heating…
View article: Multiphase Radical Chemical Processes Induced by Air Pollutants and the Associated Health Effects
Multiphase Radical Chemical Processes Induced by Air Pollutants and the Associated Health Effects Open
Air pollution is increasingly recognized as a significant health risk, yet our understanding of its underlying chemical and physiological mechanisms remains incomplete. Fine particulate matter (PM2.5) and ozone (O3) interact with biomolecu…
View article: Performance assessment of the HERD calorimeter with a photo-diode read-out system for high-energy electron beams
Performance assessment of the HERD calorimeter with a photo-diode read-out system for high-energy electron beams Open
The measurement of cosmic rays at energies exceeding 100 TeV per nucleon is crucial for enhancing the understanding of high-energy particle propagation and acceleration models in the Galaxy. HERD is a space-borne calorimetric experiment th…
View article: Modeling simulation of aerosol light absorption over the Beijing-Tianjin-Hebei region: the impact of mixing state and aging processes
Modeling simulation of aerosol light absorption over the Beijing-Tianjin-Hebei region: the impact of mixing state and aging processes Open
The mixing state and aging characteristics of black carbon (BC) aerosols are the key factors in calculating their optical properties and quantifying their impacts on radiation balance and global climate change. Considerable uncertainty sti…
View article: The role of naphthalene and its derivatives in the formation of secondary organic aerosol in the Yangtze River Delta region, China
The role of naphthalene and its derivatives in the formation of secondary organic aerosol in the Yangtze River Delta region, China Open
Naphthalene (Nap) and its derivatives, including 1-methylnaphthalene (1-MN) and 2-methylnaphthalene (2-MN), serve as prominent intermediate volatile organic compounds (IVOCs) and contribute to the formation of secondary organic aerosol (SO…
View article: Unraveling the Light‐Absorbing Properties of Brown Carbon at a Molecular Level
Unraveling the Light‐Absorbing Properties of Brown Carbon at a Molecular Level Open
Brown carbon (BrC) exhibits a highly complex chemical composition with diverse light‐absorbing properties, which complicates our understanding of its climate impacts. This study examined the impact of molecular characteristics (including m…
View article: CRA5: Extreme Compression of ERA5 for Portable Global Climate and Weather Research via an Efficient Variational Transformer
CRA5: Extreme Compression of ERA5 for Portable Global Climate and Weather Research via an Efficient Variational Transformer Open
The advent of data-driven weather forecasting models, which learn from hundreds of terabytes (TB) of reanalysis data, has significantly advanced forecasting capabilities. However, the substantial costs associated with data storage and tran…
View article: Oxidation Mechanism and Toxicity Evolution of Linalool, a Typical Indoor Volatile Chemical Product
Oxidation Mechanism and Toxicity Evolution of Linalool, a Typical Indoor Volatile Chemical Product Open
Linalool, a high-reactivity volatile chemical product (VCP) commonly found in cleaning products and disinfectants, is increasingly recognized as an emerging contaminant, especially in indoor air. Understanding the gas-phase oxidation mecha…