Article
Engineering, Chemical
Dong Zou, Chenpei Zhou, Yanmin Gong, Zhaoxiang Zhong, Weihong Xing
Summary: Novel filter-pressing method was employed to fabricate fibrous ceramic fiber membrane tubes, which showed improved gas permeance and mechanical strength. The resulting membrane also exhibited high particle rejection behavior towards dust-laden gas.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Materials Science, Textiles
Chi Zou, Yunlong Shi, Xiaoming Qian
Summary: The glass fiber felt made through flame blowing process was characterized for its morphology and filtration performance. It was found that the presence of fine fibers contributes to the actual high filtration efficiency in measurement. The multi-layered microstructure of the glass fiber felt improves dust holding capacity and prolongs the pressure drop build-up time. Quality factor calculation allows for predicting the energy cost performance of the filters.
JOURNAL OF INDUSTRIAL TEXTILES
(2022)
Article
Engineering, Chemical
Lintai Li, Yanmin Zhou, Xin Li, Xuefeng Hou, Yan Xu, Zhongning Sun, Haifeng Gu, Ruxun Ding
Summary: This research verifies the flow resistance and filtration efficiency of flat metal fiber using numerical calculations and then calculates the performance of pleated cylindrical filter elements. The study analyzes the flow resistance and filtration efficiency of cylindrical filters and compares them with flat filters. The results show that the filtration efficiency is reduced after the conversion from flat filters to filter cartridges due to uneven flow distribution in the vertical direction of cylindrical structures. The research provides design references for processing and manufacturing engineering filter elements.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Materials Science, Textiles
Jian Hu, Junxiong Zhang, Ruonan Han, Yong Yang
Summary: This study explores the correlation between the glass fiber suspension characteristics and the physical properties of glass fiber felts. The results show that beating time and speed have a significant influence on the physical properties, such as beating degree, viscosity, drainage resistance, settlement index, uniformity, and tensile strength.
JOURNAL OF INDUSTRIAL TEXTILES
(2022)
Article
Chemistry, Physical
Michael O. Ogunbunmi, Andre M. Strydom
Summary: We report the synthesis, crystal structure, and thermodynamic properties of the two binary laves phases Ce3Cu and Pr3Cu, which exhibit features of strong geometrical frustration driven by the arrangement of rare-earth ions. Ce3Cu undergoes a phase transition at 5 K with a metamagnetic transition near 2 T, while Pr3Cu shows spin-glass behavior with freezing temperature and irreversibility. Both compounds exhibit frequency-dependence in their magnetic properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Chemical
Lintai Li, Yanmin Zhou, Zhongning Sun, Haifeng Gu, Jianxin Shi, Xiao Wang, Meng Chen, Zhou Zhao
Summary: After a fire accident in a spent fuel reprocessing site, this paper optimizes the design of metal fiber structure parameters to meet the requirements of nuclear-grade filters. The results show that the optimal fiber structure parameters are a filter layer thickness of 0.5 mm and a basic weight of 950 g/m(2). This work provides a reference for the application of metal fibers to nuclear grade filters.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Environmental
Bruno Jose Chiaramonte de Castro, Camila Raquel de Lacerda, Bruna Ramela de Melo, Rafael Sartim, Monica Lopes Aguiar
Summary: Hybrid filters show promise in controlling particulate emissions, with electrostatic charging significantly improving collection efficiency for nanoparticles in a bench scale study. The study also found that particle penetration decreased and quality factor increased with electrostatic charging.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2021)
Article
Materials Science, Textiles
Mahdieh Dehghan, Habib Nikukar, Mohammad Khajeh Mehrizi
Summary: This study explains the stages of preparing a nanofiber scaffold using different ratios of three polymers for tissue engineering. The morphology, porosity, and hydrophilicity of the scaffold were evaluated and optimized. The results show that the PCL/G/PDMS nanofibers can be used for tissue engineering applications, especially for elastic tissues.
JOURNAL OF INDUSTRIAL TEXTILES
(2022)
Article
Environmental Sciences
Angelo Robotto, Andrea Civra, Paola Quaglino, Denis Polato, Enrico Brizio, David Lembo
Summary: The study focuses on developing a sampling and analytical method for virus-laden bioaerosol, and reports recovery test results for SARS-CoV-2 concentration step through ultracentrifugation. A surrogate beta-coronavirus, human coronavirus strain OC43, was used to validate the recovery tests. It was found that the elution efficiency of coronavirus OC43 from filters could be enhanced by using an elution buffer containing fetal calf serum.
ENVIRONMENTAL RESEARCH
(2021)
Article
Environmental Sciences
Mohammad Aldekheel, Vahid Jalali Farahani, Ramin Tohidi, Abdulmalik Altuwayjiri, Constantinos Sioutas
Summary: This study presents the development and evaluation of a high flow rate gelatin cascade impactor (GCI) for collecting different PM particle sizes. The GCI showed good performance in collecting PM toxic constituents, making it suitable for toxicological studies.
ATMOSPHERIC ENVIRONMENT
(2023)
Article
Thermodynamics
Georg Daurer, Juraj Raic, Martin Demuth, Christian Gaber, Christoph Hochenauer
Summary: This paper compares electric boosting and bubbling techniques in glass melting furnaces. The study reveals significant differences in temperature, melt flow, glass quality, heat flux, and production efficiency. The results suggest simultaneous use of electrodes and gas nozzles for optimizing the melting process.
APPLIED THERMAL ENGINEERING
(2023)
Article
Environmental Sciences
Tobias Rueggeberg, Ana Milosevic, Patrick Specht, Andreas Mayer, Joachim Frey, Alke Petri-Fink, Heinz Burtscher, Barbara Rothen-Rutishauser
Summary: This study developed a novel filter test system to assess the efficiency of removing viral particles, using NanoCleaner® as an example filter with over 99% efficiency in removing MS2 bacteriophages. The experiments demonstrated the versatility and reliability of the test system, confirming high filter efficiency and a decrease in bacteriophage survival on filter material over time.
AEROSOL AND AIR QUALITY RESEARCH
(2021)
Article
Environmental Sciences
Z. -J. Zhou, B. Zhou, C. -H. Tseng, S. -C. Hu, A. Shiue, G. Leggett
Summary: The study found that PTFE and GF have high filtration efficiency, while PP has lower pressure drop. Furthermore, the filtration efficiency of PP may decrease significantly after electrostatic removal.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Physical
Ciyong Gu, Delong Meng, Xiaolei Yu, Lin Li, Zhimin Zhao
Summary: In this study, a highly sensitive SERS substrate was developed by loading gold and silver nanoparticles onto glass fiber filter paper. The optimized GFF/Au/AgNPs hybrid structure exhibited stronger SERS enhancement compared to the GFF substrate coated with only AuNPs. The substrate also showed good homogeneity, reproducibility, and stability, making it suitable for rapid on-site testing and identification of hazardous ingredients on real samples.
Article
Polymer Science
Oumayma Hamlaoui, Olga Klinkova, Riadh Elleuch, Imad Tawfiq
Summary: This work investigates the effects of glass fiber content on the mechanical and physical properties of glass fiber reinforced polybutylene terephthalate (PBT) composites. Tensile tests, scanning electron microscopy analysis, flammability tests, and fluidity tests were conducted to evaluate the mechanical behavior, microstructure, flame retardancy, and flow behavior of the composites. The results indicate that increasing the glass fiber content improves the stiffness but also increases the brittleness of the material. The riveting tests provide a direct assessment of the material's cracking resistance.
Article
Meteorology & Atmospheric Sciences
Jian Wang, Rob Wood, Michael P. Jensen, J. Christine Chiu, Yangang Liu, Katia Lamer, Neel Desai, Scott E. Giangrande, Daniel A. Knopf, Pavlos Kollias, Alexander Laskin, Xiaohong Liu, Chunsong Lu, David Mechem, Fan Mei, Mariusz Starzec, Jason Tomlinson, Yang Wang, Seong Soo Yum, Guangjie Zheng, Allison C. Aiken, Eduardo B. Azevedo, Yann Blanchard, Swarup China, Xiquan Dong, Francesca Gallo, Sinan Gao, Virendra P. Ghate, Susanne Glienke, Lexie Goldberger, Joseph C. Hardin, Chongai Kuang, Edward P. Luke, Alyssa A. Matthews, Mark A. Miller, Ryan Moffet, Mikhail Pekour, Beat Schmid, Arthur J. Sedlacek, Raymond A. Shaw, John E. Shilling, Amy Sullivan, Kaitlyn Suski, Daniel P. Veghte, Rodney Weber, Matt Wyant, Jaemin Yeom, Maria Zawadowicz, Zhibo Zhang
Summary: Marine low clouds have a significant impact on global climate, but their representation in global climate models is currently inadequate. Understanding how marine low clouds respond to changes in atmospheric greenhouse gases and aerosols is a major source of uncertainty in climate simulations. The eastern North Atlantic region is a unique area with diverse marine boundary layer clouds, making it an excellent location to study the impact of aerosols on cloud properties. The Aerosol and Cloud Experiments in Eastern North Atlantic campaign was conducted to improve the understanding of the marine boundary layer cloud and aerosol interactions, as well as the cloud condensation nuclei budget.
BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY
(2022)
Article
Engineering, Chemical
Weixing Hao, Mark Stolzenburg, Michel Attoui, Jiaoshi Zhang, Yang Wang
Summary: This study simulated the activation and growth of particles smaller than 3 nm in a laminar flow CPC using COMSOL, optimizing particle activation and comparing the efficiency of different working fluids.
JOURNAL OF AEROSOL SCIENCE
(2021)
Article
Chemistry, Medicinal
Kashala Fabrice Kapiamba, Weixing Hao, Stephen Adom, Wenyan Liu, Yue-Wern Huang, Yang Wang
Summary: The health effects of electronic cigarette (EC) aerosol exposure are still not well understood due to insufficient data. In this study, metals in EC aerosols from three brands were quantified, and it was found that some metals exceeded the regulated maximum daily intake amount. The metals were mainly released from the EC liquid, and high metal contents were also observed in simulated secondhand aerosols.
CHEMICAL RESEARCH IN TOXICOLOGY
(2022)
Article
Toxicology
Weixing Hao, Kashala Fabrice Kapiamba, Varuni Abhayaratne, Shoaib Usman, Yue-Wern Huang, Yang Wang
Summary: This study designed a filter-based system to simulate secondhand smoke generation, utilizing three filter media to mimic particle deposition efficiencies in different regions of the human respiratory system. The performance of the system was demonstrated and properties of secondhand smoke particles were compared to primary smoke particles.
INHALATION TOXICOLOGY
(2022)
Article
Microbiology
Gayan Bamunuarachchi, Houda Harastani, Paul W. Rothlauf, Ya-nan Dai, Ellebedy Ali, Daved Fremont, Sean P. J. Whelan, David Wang, Adrianus C. M. Boon
Summary: Bourbon virus (BRBV) was first discovered in 2014 and has been detected in ticks in Missouri and Kansas. Despite the high prevalence in ticks, the true infection burden of BRBV in the community is unknown.
Article
Nanoscience & Nanotechnology
Steven Cheng, Weixing Hao, Yuchen Wang, Yang Wang, Shu Yang
Summary: By understanding the morphology and wettability of fibers/yarns, researchers have identified the best reusable fabric mask materials, which consist of tightly woven Janus fabrics with low porosity and a hydrophobic outer layer, and a high porosity and hydrophilic inner layer.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Public, Environmental & Occupational Health
J. Patrick Brooks, Christopher Lupfer, Wang Yang, Weixing Hao MEng, Kashala Fabrice Kapiamba
Summary: The effect of stabilized hypochlorous acid (HOCl) on N95 filtration facemask respirators (FFRs) was investigated. The filtration performance of N95 FFR fabric swatches was not significantly affected by HOCl exposure. HOCl submersion showed excellent bactericidal effects on contaminated swatches. Further study is needed on the decontamination of intact FFRs using HOCl. Rating: 8/10.
AMERICAN JOURNAL OF INFECTION CONTROL
(2023)
Review
Materials Science, Multidisciplinary
Nana A. Amoah, Guang Xu, Yang Wang, Jiayu Li, Yongming Zou, Baisheng Nie
Summary: Researchers conducted a critical review of the current status of particle matter sensors and discussed the potential application of low-cost sensors in underground mines. They identified sources of sensor errors and proposed comprehensive calibration processes and evaluation protocols to improve sensor performance.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2022)
Article
Environmental Sciences
Nana A. Amoah, Guang Xu, Ashish Ranjan Kumar, Yang Wang
Summary: Mining-induced coal dust causes respiratory diseases, especially coal workers' pneumoconiosis (CWP). Current underground monitors are costly and not suitable for regular sample monitoring. Low-cost PM sensors offer a potential solution but require precise calibration. This study calibrated Plantower PMS5003 sensors and evaluated other commercially available PM sensors, demonstrating the feasibility of low-cost sensors for real-time personal coal dust monitoring if a robust calibration model is applied.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Editorial Material
Microbiology
Adrianus C. M. Boon, Tamarand L. Darling, Peter J. Halfmann, John Franks, Richard J. Webby, Dan H. Barouch, Julia R. Port, Vincent J. Munster, Michael S. Diamond, Yoshihiro Kawaoka
Article
Microbiology
Christina M. Kackos, Sherri L. Surman, Bart G. Jones, Robert E. Sealy, Trushar Jeevan, Christopher J. H. Davitt, Sergei Pustylnikov, Tamarand L. Darling, Adrianus C. M. Boon, Julia L. Hurwitz, Marcelo M. Samsa, Richard J. Webby
Summary: SARS-CoV-2 continues to disrupt everyday life and cause excess morbidity and mortality worldwide. Vaccination has been key to quelling the impact of this respiratory pathogen, and mRNA vaccines have led the charge on this front. The emergence of SARS-CoV-2 variants has threatened vaccine efficacy, but the mRNA vaccines developed by GreenLight Biosciences have shown robust protective efficacy against the wild-type virus and its variants.
MICROBIOLOGY SPECTRUM
(2023)
Article
Thermodynamics
Chanakya Bagya Ramesh, Yang Wang
Summary: In this study, the mobility and size distributions of positive and negative ions generated from a premixed methane-air flat flame were measured using a high-resolution differential mobility analyzer (HR-DMA). The results showed that under certain experimental conditions, positively charged ions were relatively stable, with two major modes at 1.16 nm and 1.42 nm. The mode corresponding to 1.42 nm gradually increased in size with height above the burner, indicating the charging of hydrocarbon precursors.
COMBUSTION SCIENCE AND TECHNOLOGY
(2023)
Article
Geosciences, Multidisciplinary
Xianda Gong, Yang Wang, Hua Xie, Jiaoshi Zhang, Zheng Lu, Robert Wood, Frank Stratmann, Heike Wex, Xiaohong Liu, Jian Wang
Summary: The study investigates the maximum supersaturation (S-x) of marine boundary layer clouds in the Eastern North Atlantic using airborne and surface observations. The results show that the cloud droplet number concentration (N-c) in the least diluted cloud cores agrees well with the number concentration of particles larger than the Hoppel Minimum (HM) below clouds. The S-x values exhibit clear seasonal variation with higher values during winter, and are mainly influenced by cloud condensation nuclei (CCN) concentration and updraft velocity (w).
Article
Meteorology & Atmospheric Sciences
Jiaoshi Zhang, Yang Wang, Steven Spielman, Susanne Hering, Jian Wang
Summary: Aerosol hygroscopic growth is important in atmospheric particle chemistry and climate. Nonparametric, regularized methods are introduced to invert the aerosol GF-PDF and are demonstrated to outperform other inversion methods in reconstructing the GF-PDF.
ATMOSPHERIC MEASUREMENT TECHNIQUES
(2022)
Article
Environmental Sciences
Anna L. Hodshire, Emily Ramnarine, Ali Akherati, Matthew L. Alvarado, Delphine K. Farmer, Shantanu H. Jathar, Sonia M. Kreidenweis, Chantelle R. Lonsdale, Timothy B. Onasch, Stephen R. Springston, Jian Wang, Yang Wang, Lawrence Kleinman, Arthur J. Sedlacek, Jeffrey R. Pierce
Summary: Initial smoke organic aerosol mass concentrations can predict changes in smoke aerosol aging markers, number concentration, and number mean diameter; cores of plumes have higher concentrations than edges; on the plume edges, the organic aerosol is more oxygenated, while a marker for primary biomass burning aerosol emissions has decreased in relative abundance compared to the plume cores.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2021)
Article
Engineering, Chemical
Francisco J. Higuera, Juan Fernandez de la Mora
Summary: This study investigates a particle condensation device that uses cold and warm humid air streams to achieve water vapor condensation. Compared to existing water condensation particle counters, this configuration offers advantages such as variable saturation ratio, accelerated penetration of water vapor, and a relatively uniform saturation field.
JOURNAL OF AEROSOL SCIENCE
(2024)
Article
Engineering, Chemical
Brijal Prajapati, Vishal Dharaiya, Manoranjan Sahu, Chandra Venkatraman, Pratim Biswas, Kajal Yadav, Delwin Pullokaran, Ramya Sunder Raman, Ruqia Bhat, Tanveer Ahmad Najar, Arshid Jehangir
Summary: This study evaluated the performance of a low-cost particulate matter sensor and proposed a physics-based calibration method. The results showed that the physics-based calibration approach performed better compared to statistical models at both observation sites.
JOURNAL OF AEROSOL SCIENCE
(2024)
Correction
Engineering, Chemical
N. Searle, K. Kaur, K. Kelly
JOURNAL OF AEROSOL SCIENCE
(2024)
Article
Engineering, Chemical
Tianyu Cen, Laura Torrent, Andrea Testino, Christian Ludwig
Summary: In this study, a hyphenated setup consisting of a rotating disk diluter (RDD) with spICP-MS (RDDspICP-MS) was used for online sampling and characterization of metallic nanoparticles (NPs) in ambient pressure aerosols. The RDD allowed for constant flow rate sampling of aerosols and adjusting the dilution ratio for different particle number concentrations (PNCs). The feasibility of this setup was tested with different sizes of AuNPs in argon-based and air-based aerosols, and the results showed a lower limit of detection for number concentration. The capability of the setup to accurately investigate multi-modal samples and the interference of ionic species was also demonstrated.
JOURNAL OF AEROSOL SCIENCE
(2024)
Article
Engineering, Chemical
A. Valenzuela, E. Bazo, R. A. Rica, L. Alados-Arboledas, F. J. Olmo-Reyes
Summary: This article introduces a method to measure the extinction cross section of levitated particles using an electrodynamic trap and double-cavity ring down spectroscopy technique, and demonstrates the potential of this method in 1,2,6-hexanetriol particles through simulations and experiments. Unlike traditional methods, this technique provides crucial information about the extinction cross section of sodium chloride particles during dehydration and hydration processes.
JOURNAL OF AEROSOL SCIENCE
(2024)
Article
Engineering, Chemical
Shadi Yaqoubi, Mohaddese Sokuti, Sahand Mazloum-Ravasan, Kofi Asare-Addo, Hamed Hamishehkar, Ali Nokhodchi
Summary: In this study, a modified version of ultrasonic spray pyrolysis was used to prepare salbutamol sulfate dry powder. The engineered particles showed suitable characteristics for effective drug delivery to the lungs and demonstrated acceptable aerosolization performance. This newly introduced method appears to be capable of producing dry powder formulations of different drugs without the need for surfactants or stabilizers.
JOURNAL OF AEROSOL SCIENCE
(2024)
Article
Engineering, Chemical
Ashley L. Nord, Patrice Dosset, Pierre Slangen, Manouk Abkarian
Summary: Phonation has been found to be a potent transmission route for the COVID-19 virus. To control transmission, it is important to measure the amount of aerosols produced by speech. Researchers used digital in-line holography to overcome experimental challenges and successfully imaged the formation and deformation of saliva filaments in the mouth during speech, as well as the resulting aerosolized droplets.
JOURNAL OF AEROSOL SCIENCE
(2024)
Article
Engineering, Chemical
Yating Wang, Yiyang Zhang, Zhu Fang, Xinxin Wu
Summary: The research investigates the energy dissipation in particle-wall collision with roughness using the finite element method. The results show that the presence of surface roughness leads to lower viscoelastic dissipation and higher restitution coefficient compared to a smooth surface. The collision time is identified as a key factor in predicting the energy dissipation.
JOURNAL OF AEROSOL SCIENCE
(2024)
Article
Engineering, Chemical
Shaamrit Balendra, Akshay Kale, Julie Pongetti, Mohsen Kazemimanesh, Molly Haugen, Lee Weller, Adam Boies
Summary: The measurement of airborne particles is important for detecting and characterising air pollution, emissions, fire detection, occupational and climate impacts. However, current optical particle counters (OPCs) cannot measure ultrafine particles. This study explores the limitations of miniaturising a condensation particle counter (CPC) growth chamber and provides a toolkit for optimising the design of miniaturised CPC-GCs.
JOURNAL OF AEROSOL SCIENCE
(2024)
Article
Engineering, Chemical
Markus Snellman, Namsoon Eom, Maria E. Messing, Knut Deppert, Chris Hogan
Summary: Segregated bimetallic nanoparticles, such as core-shell nanoparticles, have attracted widespread interest in various fields like biomedicine, catalysis, and optoelectronics. Aerosol technology provides an optimal platform for controlling the size, structure, and composition of nanoparticles, which are crucial parameters for tuning the material performance for specific applications. In this study, researchers developed a novel evaporator design that allows on-line coating of core particles with a shell directly in the gas phase. By utilizing a local heater, the researchers were able to decouple the heating process of the evaporating material from the aerosol particles, thereby limiting core-shell alloying. The resulting core-shell particle formation with controllable shell thickness was demonstrated using evaporation of zinc onto core particles of gold, tin, and bismuth. Simple models were also discussed to explain the observed growth process inside the evaporator and the formation of the shell.
JOURNAL OF AEROSOL SCIENCE
(2024)
Article
Engineering, Chemical
Kentaro Misawa, Yuto Kasai
Summary: In this study, the laser-induced fluorescence technique was used to observe scattered and fluorescent signals from fluorescent polystyrene latex particles. The ratio of fluorescence to scattered signal intensities was found to be almost equal for particles of the same size, allowing for the separate observation of mixed-size fluorescent particles. Relative fluorescence intensities were obtained by incorporating ratios of fluorescence to scattered signal and relative scattered signal intensities.
JOURNAL OF AEROSOL SCIENCE
(2024)
Article
Engineering, Chemical
Sripriya Nannu Shankar, William B. Vass, John A. Lednicky, Tracey Logan, Rebeccah L. Messcher, Arantzazu Eiguren-Fernandez, Stavros Amanatidis, Tara Sabo-Attwood, Chang-Yu Wu
Summary: This study introduces a testing system that allows for direct exposure of aerosolized viruses onto host cells. By collecting particles of different sizes and analyzing them, researchers obtained information on the concentration and viability of the virus at different particle sizes.
JOURNAL OF AEROSOL SCIENCE
(2024)