Review
Environmental Sciences
Yuhan Huang, Chengwang Lei, Chun-Ho Liu, Pascal Perez, Hugh Forehead, Shaofei Kong, John L. Zhou
Summary: This paper reviews the mechanisms controlling vehicle emission dispersion in urban street canyons and the strategies for managing roadside air pollution. Key factors influencing air pollution in street canyons include traffic conditions, canyon geometry, weather conditions, and chemical reactions. Mitigation strategies include traffic interventions and city planning, with the latter having a more significant impact on pollutant dispersion.
ENVIRONMENTAL POLLUTION
(2021)
Article
Engineering, Environmental
P. Bachler, V Loschner, J. Meyer, A. Dittler
Summary: This publication investigates the emission behavior of a small-scale baghouse filter and utilizes low-cost sensors for spatial emission monitoring. The study reveals the occurrence of temporary particle emissions after cleaning cycles, which can be attributed to specific filter bags through comparison with total dust emission.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Environmental Sciences
Yu Kang, Jie Chen, Yang Cao, Zhenyi Xu
Summary: This paper focuses on recommending optimal monitoring station locations based on existing ones to maximize the accuracy of air-quality inference model for an entire urban area. The main challenges lie in the spatiotemporal interactions of air-quality distribution, complex external influential factors, and correlating the inference model with the monitoring station recommendation model effectively.
Article
Thermodynamics
Konstantinos Kokkinos, Eftihia Nathanail, Vassilis Gerogiannis, Konstantinos Moustakas, Vayos Karayannis
Summary: A Decision Support System based on Intuitionistic Hesitant Fuzzy methods for hydrogen storage station location selection was proposed and applied in Larissa city urban region, central Greece, with the result indicating the Steiner point locations as the most preferable scenario.
Article
Engineering, Multidisciplinary
Matthias Aichinger-Rosenberger, Alexander Wolf, Cornelius Senn, Roland Hohensinn, Marcus Franz Glaner, Gregor Moeller, Benedikt Soja, Markus Rothacher
Summary: Global Navigation Satellite Systems (GNSS) are versatile sensors used for various applications. This study introduces the development and deployment of a multi-purpose GNSS network called MPG-NET in the Swiss Alps, discussing technical details of the station setup and quality of derived remote sensing products. Results show the potential of low-cost GNSS for displacement monitoring and establishment of a high-precision network at an affordable price.
Article
Engineering, Mechanical
Enrique Caso, Alberto Diez-Ibarbia, Pablo Garcia, Javier Sanchez-Espiga, Alfonso Fernandez-del-Rincon
Summary: Acoustic emission (AE) technology has been used to monitor the wire drawing process in an industrial environment. The correlation between AE measurements and process parameters, such as drawing speed, die temperature, lubricant type, wire diameter, and die status, has been studied to develop a reliable monitoring system. The results show that AE amplitude is correlated with lubricant chemical composition and die temperature, and variations in AE spectra reflect slight changes in the process when different wire materials or die sets are used.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2023)
Article
Environmental Sciences
Solomon Neway Jida, Jean-Francois Hetet, Pascal Chesse, Awoke Guadie
Summary: This study investigated the concentration of particulate matter from roadside vehicles in Addis Ababa, Ethiopia using artificial neural network models. The results showed that both PM2.5 and PM10 levels exceeded air quality standards, with the modeling techniques providing accurate predictions for transport-related particulate matter emissions. The findings suggest potential applicability for similar geographical and developmental settings in Ethiopia and other countries.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2021)
Article
Engineering, Multidisciplinary
Li-Pang Chen, Syamsiyatul Muzayyanah, Su-Fen Yang, Bin Wang, Ting-An Jiang, Shengjin Gan
Summary: This study proposes a new control region based on distribution-free technology to simultaneously monitor the process location and dispersion, allowing for the detection of out-of-control conditions in process parameters.
Article
Engineering, Manufacturing
Jan Petrich, Zack Snow, David Corbin, Edward W. Reutzel
Summary: This paper presents a complete concept and validation scheme for potential inter-layer flaw detection from in-situ process monitoring using supervised machine learning. Experimental validation showed that while optical imagery contains the highest amount of information for flaw detection, additional information content observed in other modalities significantly improved classification performance.
ADDITIVE MANUFACTURING
(2021)
Article
Polymer Science
Liyang Zhao, Yuan Tian, Xiangnan Wang, Dingdong Liu, Yifan Xie, Jingang Hu, Gang Zou
Summary: Recently, polymerization-induced self-assembly (PISA) has gained significant attention as a novel approach for synthesizing functional polymer nanomaterials. However, the current understanding of the PISA process and gelation behavior is limited. In this study, we proposed a new PISA formulation based on light-triggered thiol-ene based click polymerization and gelation. The photoluminescence of polymers with nonaromatic chromophores was found to be highly dependent on molecular arrangement, which could be utilized for in situ monitoring of the PISA process.
Article
Green & Sustainable Science & Technology
Marco Ravina, Zahra Shams Esfandabadi, Deborah Panepinto, Mariachiara Zanetti
Summary: The study shows that during the COVID-19 pandemic lockdown, the concentration of traffic-induced air pollutants in Turin significantly decreased, with reductions of at least 70% for PM2.5 and up to 88.1% for BaP. The concentration reduction varied in different areas of the city due to the characteristics of emission sources and geographical features.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Agronomy
Victor Chaplygin, Tamara Dudnikova, Saglara Mandzhieva, Tatiana Minkina, Anatoly Barakhov, Dina Nevidomskaya, Vishnu Rajput, Yuri Litvinov, Marina Burachevskaya, Natalia Chernikova, Olga Nazarenko, Andrey Barbashev, Svetlana Sushkova
Summary: Based on 10 years of environmental monitoring, the study examined the regularities of heavy metals and polycyclic aromatic hydrocarbons (PAHs) in agricultural landscapes and their accumulation in Triticum aestivum. The prevailing wind direction and atmospheric transfer were found to be significant factors for pollutants accumulation. As the content of pollutants in soil increased, their accumulation in Triticum aestivum exceeded maximum permissible concentrations (MPC), particularly for Pb, Cd, and BaP. The influx of pollutants into the plant was only significant for Mn, Cr, and BaP, while others were mainly accumulated through foliar influx. Triticum aestivum showed higher tolerance to heavy metals pollution compared to PAHs.
Article
Acoustics
Cemil Keskinoglu, Ahmet Aydin
Summary: The study utilizes ultrasonic measurement to noninvasively monitor suspension cell culture and determine phases for maximum efficiency. With the advantage of portability and wireless connectivity, cells can be monitored in the incubator to obtain a real-time highly sampled growth curve.
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
(2021)
Article
Engineering, Mechanical
Erwin Wojtczak, Magdalena Rucka
Summary: This paper discusses the monitoring of the stiffening process of epoxy adhesive using ultrasound, with a new procedure proposed to monitor the curing process of adhesive joints. Both methods showed comparable results in monitoring the increase of dynamic elastic modulus of adhesive over time, indicating the effectiveness of the proposed procedure in real-time monitoring the curing process of adhesive layers in multi-layer systems.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2021)
Article
Engineering, Electrical & Electronic
Hao Li, Fei Gao, Jinyang Jiao, Zongyang Liu, Dingcheng Ji, Jing Lin
Summary: This paper proposes a method for wire arc additive manufacturing (WAAM) health monitoring based on acoustic emission (AE) signal, using a bi-classifier and orthogonal constraints jointly guided domain adaptation. By optimizing the strategy and introducing orthogonal loss, the method adapts different domain features and captures remote dependence relationships in AE signals. Experimental results demonstrate the effectiveness and superiority of the proposed method.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2023)
Article
Energy & Fuels
H. S. Zhen, J. Miao, C. W. Leung, C. S. Cheung, Z. H. Huang
Article
Energy & Fuels
X. J. Man, C. S. Cheung, Z. Ning, L. Wei, Z. H. Huang
Article
Thermodynamics
H. S. Zhen, C. W. Leung, C. S. Cheung, Z. H. Huang
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2016)
Article
Thermodynamics
Z. L. Wei, C. W. Leung, C. S. Cheung, Z. H. Huang
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2016)
Article
Chemistry, Physical
H. S. Zhen, Z. L. Wei, C. W. Leung, C. S. Cheung, Z. H. Huang
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2016)
Article
Thermodynamics
Z. L. Wei, C. W. Leung, C. S. Cheung, Z. H. Huang
Article
Thermodynamics
L. Wei, C. S. Cheung, Z. Ning
Article
Energy & Fuels
Z. L. Wei, H. S. Zhen, C. W. Leung, C. S. Cheung, Z. H. Huang
Article
Energy & Fuels
Ke Yang, Long Wei, C. S. Cheung, Chenglong Tang, Zuohua Huang
Article
Engineering, Chemical
Nirmal Kumar Gali, Fenhuan Yang, Chun Shun Cheung, Zhi Ning
JOURNAL OF AEROSOL SCIENCE
(2017)
Article
Engineering, Chemical
Chun Guan, C. S. Cheung, Xinling Li, Dongfang Li, Zhen Huang
JOURNAL OF AEROSOL SCIENCE
(2017)
Article
Environmental Sciences
Chun Guan, C. S. Cheung, Xinling Li, Zhen Huang
ATMOSPHERIC POLLUTION RESEARCH
(2017)
Article
Thermodynamics
Meisam Ahmadi Ghadikolaei, Chun Shun Cheung, Ka-Fu Yung
Article
Thermodynamics
Meisam Ahmadi Ghadikolaei, Chun Shun Cheung, Ka-Fu Yung, Pak Kin Wong
Summary: The study explores the impacts of blending, fumigating, and combined fumigating+blending methods on engine combustion and cyclic variability parameters compared to diesel method. It is found that blending method has slightly longer overall combustion progression, fumigating method has minimal effect, and both blending and fumigating methods increase COVIMEP.
INTERNATIONAL JOURNAL OF GREEN ENERGY
(2021)
Article
Thermodynamics
Chun Guan, C. S. Cheung, Z. Ning, P. K. Wong, Zhen Huang
APPLIED THERMAL ENGINEERING
(2017)
Article
Environmental Sciences
Muhammad Waqas, Majid Nazeer, Man Sing Wong, Wu Shaolin, Li Hon, Joon Heo
Summary: The socio-economic restriction measures implemented in the United States have significantly reduced nitrogen dioxide (NO2) emissions. The study highlights the impact of factors such as human mobility, population density, income, climate, and stationary sources on the reduction of NO2 at different stations. The research emphasizes the scientific impacts of the NO2 reduction and income inequality revealed by the pandemic on air quality and health disparities.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Guorui Zhi, Jinhong Du, Aizhong Chen, Wenjing Jin, Na Ying, Zhihui Huang, Peng Xu, Di Wang, Jinghua Ma, Yuzhe Zhang, Jiabao Qu, Hao Zhang, Li Yang, Zhanyun Ma, Yanjun Ren, Hongyan Dang, Jianglong Cui, Pengchuan Lin, Zhuoshi He, Jinmin Zhao, Shuo Qi, Weiqi Zhang, Wenjuan Zhao, Yingxin Li, Qian Liu, Chen Zhao, Yi Tang, Peng Wei, Jingxu Wang, Zhen Song, Yao Kong, Xiangzhe Zhu, Yi Shen, Tianning Zhang, Yangxi Chu, Xinmin Zhang, Jiafeng Fu, Qingxian Gao, Jingnan Hu, Zhigang Xue
Summary: An comprehensive emission inventory for China in 2019, which includes both air pollutants and greenhouse gases, was developed in this study. The inventory utilizes existing frameworks and data to provide comparable emissions data and demonstrates the relationship between emissions and economic development.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
I-Ting Ku, Yong Zhou, Arsineh Hecobian, Katherine Benedict, Brent Buck, Emily Lachenmayer, Bryan Terry, Morgan Frazier, Jie Zhang, Da Pan, Lena Low, Amy Sullivan, Jeffrey L. Collett Jr
Summary: Unconventional oil and natural gas development (UOGD) in the United States has expanded rapidly in recent decades, raising concerns about its impact on air quality. This study conducted extensive air monitoring during the development of several large well pads in Broomfield, Colorado, providing a unique opportunity to examine changes in local air toxics and VOC concentrations during well drilling and completions and production. The study identified significant increases in VOC concentrations during drilling operations, highlighting the importance of emissions from synthetic drilling mud. The findings suggest opportunities to mitigate emissions during UOGD operations.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Puji Lestari, Akbar R. Tasrifani, Wiranda I. Suri, Martin J. Wooster, Mark J. Grosvenor, Yusuke Fujii, Vissia Ardiyani, Elisa Carboni, Gareth Thomas
Summary: This study developed field emission factors for various pollutants in peatland fires and estimated the total emissions. Gas samples were collected using an analyzer, while particulate samples were collected using air samplers. The study found significant emissions of CO2, CO, PM2.5, carbon aerosols, water-soluble ions, and elements from the fires in Central Kalimantan, Indonesia in 2019.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Ligang Li, Yuyu Chen, Lu Fan, Dong Sun, Hu He, Yongshou Dai, Yong Wan, Fangfang Chen
Summary: A high-precision retrieval method based on a deep convolutional neural network and satellite remote sensing data is proposed to obtain accurate methane vertical profiles.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Hyung Joo Lee, Toshihiro Kuwayama, Michael Fitzgibbon
Summary: This study investigated the changes in nitrogen dioxide (NO2) air pollution levels and their disparities in California, U.S. during the pandemic of coronavirus disease 2019 (COVID-19). The results showed a decrease in NO2 concentrations, especially in urban and high-traffic areas. However, socially vulnerable populations still experienced higher levels of NO2 exposure. The study suggests that reducing NO2 disparities, particularly racial inequity, can be achieved through continued regulatory actions targeting traffic-related NOx emissions.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Maria Chiara Pietrogrande, Beatrice Biffi, Cristina Colombi, Eleonora Cuccia, Umberto Dal Santo, Luisa Romanato
Summary: This study investigates the chemical composition and oxidative potential of PM10 particles in the Po Valley, Italy, and demonstrates the impact of high levels of atmosphere ammonia. The rural area had significantly higher ammonia concentrations compared to the urban site, resulting in higher levels of secondary inorganic aerosol. Although the SIA components did not contribute significantly to the PM10 oxidative reactivity, they were correlated with the oxidative potential measurements. This suggests that the contribution of SIA to PM oxidative toxicity cannot be ignored.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Natalie Allen, Jan Gacnik, Sarrah M. Dunham-Cheatham, Mae Sexauer Gustin
Summary: Accurate measurement of atmospheric reactive mercury is challenging due to its reactivity and low concentrations. The University of Nevada, Reno Reactive Mercury Active System (RMAS) has been shown to be more accurate than the industry standard, but has limitations including long time resolution and sampling biases. Increasing the sampling flow rate negatively affected RM concentrations, but did not impact the chemical composition of RM captured on membranes.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Chin-Yu Hsu, Wei-Ting Hsu, Ching-Yi Mou, Pei-Yi Wong, Chih-Da Wu, Yu-Cheng Chen
Summary: This study estimated the daily exposure concentrations of PM2.5 for elderly individuals residing in different regions of Taiwan using land use regression with machine learning (LUR_ML) and microenvironmental exposure (ME) models. The accuracy of the models varied across regions, with the ME models exhibiting higher predictions and lower biases. The use of region-specific microenvironmental measurements in the ME model showed potential for accurate prediction of personal PM2.5 exposure.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Xiaohan Si, Kerrie Mengersen, Chuchu Ye, Wenbiao Hu
Summary: This study found that there is an interactive effect between air pollutants and weather factors, which significantly affects influenza transmission. Future research should consider the interactive effects between pollutants and temperature or humidity to evaluate the environment-influenza association.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Luxi Xu, Ruijun Xu, Yunshao Ye, Rui Wang, Jing Wei, Chunxiang Shi, Qiaoxuan Lin, Ziquan Lv, Suli Huang, Qi Tian, Yuewei Liu
Summary: This study aimed to evaluate the impact of ambient air pollution on hospital admissions for angina. The results showed that exposure to ambient particulate matter, sulfur dioxide, nitrogen dioxide, carbon monoxide, and ozone are associated with an increased risk of hospital admissions for angina. The association with nitrogen dioxide exposure was found to be the strongest.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Xinyu Yu, Man Sing Wong, Majid Nazeer, Zhengqiang Li, Coco Yin Tung Kwok
Summary: This study proposes a novel method to address the challenge of missing values in satellite-derived AOD products and creates a comprehensive daily AOD dataset for the Guangdong-Hong Kong-Macao Greater Bay Area. By reconstructing missing values and developing a new model, the derived dataset outperforms existing products and agrees well with ground-based observations. Additionally, the dataset exhibits consistent temporal patterns and more spatial details.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Yidan Zhang, Yifan Xu, Bo Peng, Wu Chen, Xiaoyu Cui, Tianle Zhang, Xi Chen, Yuan Yao, Mingjin Wang, Junyi Liu, Mei Zheng, Tong Zhu
Summary: This study developed a sensitive method to measure the metallic components of atmospheric fine particulate matter (PM2.5) and compared the results with different analysis methods. The concentrations of metallic components in personal PM2.5 samples were found to be significantly different from corresponding fixed-site samples. Personal sampling can reduce exposure misclassifications, and measuring metallic components is useful for exploring health risks and identifying sources of PM2.5.
ATMOSPHERIC ENVIRONMENT
(2024)
Review
Environmental Sciences
Jamie Leonard, Lea Ann El Rassi, Mona Abdul Samad, Samantha Prehn, Sanjay K. Mohanty
Summary: Increasing concentrations of microplastics in the Earth's atmosphere could have adverse effects on ecosystems and human health. The deposition rate of airborne microplastics is influenced by both land use and climate, and a global analysis suggests that climate may have a greater impact on the concentration and deposition rate of microplastics than land use.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Tian Zhou, Xiaowen Zhou, Zining Yang, Carmen Cordoba-Jabonero, Yufei Wang, Zhongwei Huang, Pengbo Da, Qiju Luo, Zhijuan Zhang, Jinsen Shi, Jianrong Bi, Hocine Alikhodja
Summary: This study investigated the long-range transport and effects of North African and Middle Eastern dust in East Asia using lidar observations and model simulations. The results showed that the dust originated from multiple sources and had a long transport time. The vertical distribution of the dust was found to be crucial for assessing its impacts.
ATMOSPHERIC ENVIRONMENT
(2024)
