Xuguang Chi
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View article: HONO formation mechanisms and impacts on ambient oxidants in coastal regions of Fujian, China
HONO formation mechanisms and impacts on ambient oxidants in coastal regions of Fujian, China Open
Nitrous acid (HONO) is a vital precursor of hydroxyl radicals (OH) in the troposphere, leading to the formation of secondary air pollutants, including ozone (O3) and secondary aerosols. Previous studies have mainly focused on investigating…
View article: Unveiling the formation of atmospheric oxygenated organic molecules under anthropogenic–biogenic interactions: insights from binned positive matrix factorization on multi-subrange mass spectra
Unveiling the formation of atmospheric oxygenated organic molecules under anthropogenic–biogenic interactions: insights from binned positive matrix factorization on multi-subrange mass spectra Open
Oxygenated organic molecules (OOMs), which are low-volatility intermediates produced via volatile organic compound (VOC) oxidation, play a critical role in secondary organic aerosol (SOA) formation through gas-to-particle conversion. Despi…
View article: Differential characterization of air ions in boreal forest of Finland and a megacity of eastern China
Differential characterization of air ions in boreal forest of Finland and a megacity of eastern China Open
Air ions play a crucial role in new particle formation (NPF), which in turn has the potential to influence global climate and air quality. We conducted a comparative analysis of air ions in three size ranges (0.8–2 nm cluster ions, 2–7 nm …
View article: Impacts of Heatwaves on Characteristics of Atmospheric Methylglyoxal in a Suburban Area in Eastern China
Impacts of Heatwaves on Characteristics of Atmospheric Methylglyoxal in a Suburban Area in Eastern China Open
Methylglyoxal (Mgly) is a ubiquitous yet poorly constrained atmospheric volatile organic compound significantly contributing to the formation of ozone and secondary organic aerosols. Global warming increases heatwaves frequency, affecting …
View article: Unveiling the Formation of Atmospheric Oxygenated Organic Molecules under Anthropogenic-Biogenic Interactions: Insights from Binned Positive Matrix Factorization on Multi-Subrange Mass Spectra
Unveiling the Formation of Atmospheric Oxygenated Organic Molecules under Anthropogenic-Biogenic Interactions: Insights from Binned Positive Matrix Factorization on Multi-Subrange Mass Spectra Open
Oxygenated organic molecules (OOMs), which are low-volatility intermediates produced via volatile organic compound (VOC) oxidation, play a critical role in secondary organic aerosol (SOA) formation through gas-to-particle conversion. Despi…
View article: Paths and Challenges of International Communication in Seal Engraving Art
Paths and Challenges of International Communication in Seal Engraving Art Open
As an important part of Chinese traditional culture, seal cutting art is gradually attracting attention from the international community. The purpose of this paper is to discuss the paths and challenges of the international dissemination o…
View article: Exploring the Path of Digital Technology Enabling Traditional Calligraphy and Seal Engraving
Exploring the Path of Digital Technology Enabling Traditional Calligraphy and Seal Engraving Open
With the rapid development of digital technology, traditional cultural art forms are facing unprecedented development opportunities. Taking traditional calligraphy and seal cutting as the research object, this paper discusses how digital t…
View article: Alveolar macrophages critically control infection by seasonal human coronavirus OC43 to avoid severe pneumonia
Alveolar macrophages critically control infection by seasonal human coronavirus OC43 to avoid severe pneumonia Open
Seasonal coronaviruses, similar to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), only cause severe respiratory symptoms in a small fraction of infected individuals. However, the host factors that determine the variable resp…
View article: Aerosol-cloud interactions near cloud base deteriorating the haze pollution in East China
Aerosol-cloud interactions near cloud base deteriorating the haze pollution in East China Open
Atmospheric aerosols not only cause severe haze pollution, but also affect climate through changes in cloud properties. However, during the haze pollution, aerosol-cloud interactions are not well understood due to a lack of in-situ observa…
View article: Differential characterization of air ions in boreal forest of Finland and megacity of eastern China
Differential characterization of air ions in boreal forest of Finland and megacity of eastern China Open
Air ions play a crucial role in the new particle formation (NPF), which in turn has the potential to influence global intermediate ions and 7–20 nm large ions) at two “flagship” sites: the SMEAR II site in boreal forest of Finland and the …
View article: A case report of confirmed difficult pulmonary tuberculosis based on the hybrid capture-based tNGS method
A case report of confirmed difficult pulmonary tuberculosis based on the hybrid capture-based tNGS method Open
Background Early diagnosis of pulmonary tuberculosis can greatly reduce the harm caused by the disease. However, traditional diagnostic methods have various shortcomings in diagnosing pulmonary tuberculosis. Currently, with the increasing …
View article: Intralobar pulmonary sequestration complicated by a giant supplying artery aneurysm presenting for 9 years: a case report
Intralobar pulmonary sequestration complicated by a giant supplying artery aneurysm presenting for 9 years: a case report Open
Background This article reports a case of a intralobar pulmonary sequestration (IPS) with a significantly large feeding artery aneurysm and shares the successful treatment experience. Case presentation A male was diagnosed with IPS combine…
View article: Reflectionless Linearly/Circularly Polarised Patch Antenna Based on Loading Complementary Absorptive Branches
Reflectionless Linearly/Circularly Polarised Patch Antenna Based on Loading Complementary Absorptive Branches Open
This letter proposes reflectionless linearly and circularly polarised patch antennas based on loading complementary absorptive branches. By establishing the equivalent circuit model of a conventional patch antenna, the complementary absorp…
View article: Analysis of MRI imaging characteristics in 10 cases of adult granulosa cell tumor with normal estrogen levels
Analysis of MRI imaging characteristics in 10 cases of adult granulosa cell tumor with normal estrogen levels Open
The MRI characteristics of primary and metastatic lesions in AGCT-NEL possess specific features, such as signs of hemorrhage, absence of wall nodules in the cystic portions of the tumors, and distinctive honeycomb and Swiss cheese signs, w…
View article: Modeling Study on the Impacts of Mineral Dust Photocatalytic Heterogeneous Chemistry on the Sulfur Removal Over East Asia
Modeling Study on the Impacts of Mineral Dust Photocatalytic Heterogeneous Chemistry on the Sulfur Removal Over East Asia Open
Dust heterogeneous chemistry substantially influences the atmosphere and has profound impacts on our environment and climate. Gas‐particle partitioning on dust not only modifies species' chemical evolutions but also influences their deposi…
View article: Semivolatile behaviour and filter sampling artifacts for dicarboxylic acids during summer campaigns at three forested sites in Europe
Semivolatile behaviour and filter sampling artifacts for dicarboxylic acids during summer campaigns at three forested sites in Europe Open
The sampling artifacts for C(2)-C(5) dicarboxylic acids (DCAs) were studied by collecting high-volume PM(2.5) samples using front and back quartz-fibre filters. The filters were analysed for carbonaceous components, and for inorganic catio…
View article: On the mode-segregated aerosol particle number concentration load : contributions of primary and secondary particles in Hyytiälä and Nanjing
On the mode-segregated aerosol particle number concentration load : contributions of primary and secondary particles in Hyytiälä and Nanjing Open
Aerosol particle concentrations in the atmosphere are governed by their sources and sinks. Sources include directly-emitted (primary) and secondary aerosol particles formed from gas-phase precursor compounds. The relative importance of pri…
View article: A comprehensive survey of oracle character recognition: challenges, benchmarks, and beyond
A comprehensive survey of oracle character recognition: challenges, benchmarks, and beyond Open
Oracle character recognition-an analysis of ancient Chinese inscriptions found on oracle bones-has become a pivotal field intersecting archaeology, paleography, and historical cultural studies. Traditional methods of oracle character recog…
View article: Impacts of elevated anthropogenic emissions on physicochemical characteristics of black-carbon-containing particles over the Tibetan Plateau
Impacts of elevated anthropogenic emissions on physicochemical characteristics of black-carbon-containing particles over the Tibetan Plateau Open
Black carbon (BC) in the Tibetan Plateau (TP) region has distinct climate effects that strongly depend on its mixing state. The aging processes of BC in the TP are subject to emissions from various regions, resulting in considerable variab…
View article: The Pivotal Role of Heavy Terpenes and Anthropogenic Interactions in New Particle Formation on the Southeastern Qinghai-Tibet Plateau
The Pivotal Role of Heavy Terpenes and Anthropogenic Interactions in New Particle Formation on the Southeastern Qinghai-Tibet Plateau Open
Aerosol particles originating from the Qinghai-Tibet Plateau (QTP) readily reach the free troposphere, potentially affecting global radiation and climate. Although new particle formation (NPF) is frequently observed at such high altitudes,…
View article: Improving HONO Simulations and Evaluating Its Impacts on Secondary Pollution in the Yangtze River Delta Region, China
Improving HONO Simulations and Evaluating Its Impacts on Secondary Pollution in the Yangtze River Delta Region, China Open
Secondary air pollution, especially ozone (O 3 ) and secondary aerosols, are emerging air quality challenges confronting China. Nitrous acid (HONO), as the predominant source of hydroxyl radicals (OH), are acknowledged to be essential for …
View article: Aerosol‐Cloud Interactions Near Cloud Base Deteriorating the Haze Pollution in East China
Aerosol‐Cloud Interactions Near Cloud Base Deteriorating the Haze Pollution in East China Open
Atmospheric aerosols not only cause severe haze pollution, but also affect climate through changes in cloud properties. However, during the haze pollution, aerosol‐cloud interactions are not well understood due to a lack of in situ observa…
View article: Observed decade-long improvement of combustion efficiency in the Yangtze River Delta region in China
Observed decade-long improvement of combustion efficiency in the Yangtze River Delta region in China Open
The ΔCO/ΔCO 2 ratio is a good indicator of the combustion efficiency of carbon-containing fuels, and can be useful to assess the combustion efficiency on a regional scale. In this study, we analyzed in-situ observations of CO 2 and CO conc…
View article: Comment on egusphere-2024-879
Comment on egusphere-2024-879 Open
Abstract. Black carbon (BC) in the Tibetan Plateau (TP) region has distinct climate effect, which strongly depends on its mixing state. The aging processes of BC in TP are subject to emissions from various regions, resulting in considerabl…
View article: Comment on egusphere-2024-879
Comment on egusphere-2024-879 Open
Abstract. Black carbon (BC) in the Tibetan Plateau (TP) region has distinct climate effect, which strongly depends on its mixing state. The aging processes of BC in TP are subject to emissions from various regions, resulting in considerabl…