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Discovery of the Richest Pulsating Ultramassive White Dwarf
Published 2025-01-01“…In this work, we report the discovery of 19 pulsation modes in the UM WD star WD J0135+5722, making it the richest pulsating hydrogen-atmosphere UM WD known to date. This object exhibits multiperiodic luminosity variations with periods ranging from 137 to 1345 s, typical of pulsating WDs in the ZZ Ceti instability strip, which is centered at T _eff ∼ 12,000 K. …”
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Decade-Long Analysis: Unravelling the Spatio-Temporal Dynamics of PM10 Concentrations in Malaysian Borneo
Published 2023-11-01“…For many years, Malaysia has experienced a hazy atmosphere due to high levels of particulate matter (PM10) from regional biomass burning and other human activities. …”
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Volatile Organic Compounds and Carbonyls Pollution in Mexico City and an Urban Industrialized Area of Central Mexico
Published 2022-04-01“…Average VOC concentrations in Tula were dominated by alkanes (40.8–42.2% of the total VOCs), followed by alkenes (10.3–11.9%), oxygenated compounds (10.0–11.5%), aromatics (7.3–12.5%), halogenated species (7.0–9.3%), and acetylene (1.6–2.4%), denotating a highly reactive atmosphere. High concentrations of propane and nButane are associated with leakage, handling, and distribution of liquified petroleum gas (LPG). …”
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Spatiotemporal Variations of PM2.5 and O3 Relationship during 2014–2021 in Eastern China
Published 2023-08-01“…Abstract In recent times, there has been a noteworthy reduction in the mass concentration of PM2.5 in the atmosphere of China. On the other hand, ozone (O3) pollution has intensified during this period. …”
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Redesain Aplikasi Mobile Supervisi Observasi Kelas untuk Meningkatkan Tingkat Usability
Published 2024-10-01“…Abstract The LESON application, now renamed EDVISOR, is a mobile-based application devoted to recording the learning atmosphere and supporting classroom observation supervision activities. …”
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Variations in the physicochemical properties of soil, enzyme activities, and the characteristics of bacterial communities within algal biocrusts and subsoils across different plant...
Published 2025-04-01“…Algal biological soil crusts (ABSCs) as ecological engineers inhabiting the soil-atmosphere boundary in dryland. Bacteria living at this boundary drive the diversity of ecosystem functions and services. …”
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309
Satellite-based Emission Inventory Adjustments Improve Simulations of Long-range Transport Events
Published 2021-09-01“…For the 2018 event, non sea-salt sulfate concentrations were consistently underpredicted (0.2–0.4), while nitrate concentrations were overpredicted by up to factor of 11. Copernicus Atmosphere Monitoring Service (CAMS) reanalysis of the PM2.5 concentrations shows high sulfate concentrations in eastern China in the areas associated with 72-h back-trajectories from northern Taiwan during both events, lending support for future model investigations of sulfate source area production and transport to Taiwan. …”
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Learnings from COVID-19 Forced Lockdown on Regional Air Quality and Mitigation Potential for South Asia
Published 2022-03-01“…Without this deeper understanding, mitigation strategies cannot be effectively targeted, wasting limited resources as well as risking unintended consequences both for the atmosphere and how mitigation action is perceived by the wider public.…”
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Analysis of Surface Level PM2.5 Measured by Low-Cost Sensor and Satellite-Based Column Aerosol Optical Depth (AOD) over Kathmandu
Published 2022-12-01“…Due to rain and diffusion in the vertical atmosphere, PM2.5 levels are lowest during the summer. …”
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Validation of SOC Estimation Using OC and EC Concentration in PM2.5 Measured at Seoul
Published 2022-02-01“…We finally confirmed that the most appropriate value of (OC/EC)pri is that calculated by a regression analysis of 1-h data and estimated SOC values at PM2.5 of the Seoul atmosphere.…”
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Investigating the Effect of Coffee Husk Ash as Partial Replacement of Cement in Concrete C30.
Published 2023“…From concrete ingredients, the binder, the costliest environmental-unfriendly element is cement, which is an ecological unsociable process due to the discharge of CO; gas into the atmosphere and ecological degradation. Coffee husks have been considered as agricultural by-product; as its quantity is rising, Uganda produced 6.77 million 60 kilo bags in 2021. …”
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Assessment of Impact of Meteorology and Precursor in Long-term Trends of PM and Ozone in a Tropical City
Published 2021-12-01“…Abstract Long-term trends of atmospheric pollutants, particularly ozone (O3) and particulate matter (PM) provide a direct evaluation of the response of the atmosphere to the environmental policies and the variability of anthropogenic and biogenic emissions. …”
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CO2 methanation over low-loaded Ni-M, Ru-M (M = Co, Mn) catalysts supported on CeO2 and SiC
Published 2025-03-01“…The concentration of the major greenhouse gas CO2 is rapidly increasing in the atmosphere, leading to global warming and a range of environmental issues. …”
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Temporospatial Variation, Chemical Composition, and Source Resolution of PM2.5 in the Southeastern Taiwan Island
Published 2022-12-01“…The OC/EC ratios higher than 2.0 showed the potential chemical formation of secondary organic aerosols (SOAs) in the atmosphere in winter and spring. Trajectory simulation indicated that high PM2.5 concentrations were mostly originated from North and Central China, Japan islands, and Korea Peninsula. …”
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Variability and Source Characterization of Regional PM of Two Urban Areas Dominated by Biomass Burning and Anthropogenic Emission
Published 2022-04-01“…Abstract Identifying the sources and formation pathways of particulate matter (PM) and its components is important to determine the impact of atmospheric aerosols on human health and the warming of the global atmosphere. …”
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Evaluation of the Competitiveness Model in the Steel Industry with a Technology Transfer Approach
Published 2024-06-01“…One of the most important drivers for increasing competitiveness among companies in the steel industry is the presence of a supportive atmosphere and attitude from senior company managers. …”
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Formation and fate of freshwater on an ice floe in the Central Arctic
Published 2025-02-01“…The fate of this freshwater, whether in surface melt ponds or thin layers underneath the ice and in leads, impacts atmosphere–ice–ocean interactions and their subsequent coupled evolution. …”
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Virtual Joint Field Campaign: a framework of synthetic landscapes to assess multiscale measurement methods of water storage
Published 2025-02-01“…It comprises data and methods to create and combine different compartments of the landscape (e.g. atmosphere, soil, vegetation). The present study demonstrates virtual observations of water storage with cosmic-ray neutron sensing, hydrogravimetry, and remote sensing in three exemplary landscapes. …”
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