Article
Engineering, Manufacturing
P. Honarmandi, R. Seede, L. Xue, D. Shoukr, P. Morcos, B. Zhang, C. Zhang, A. Elwany, I. Karaman, R. Arroyave
Summary: The Eagar-Tsai (E-T) model in the context of 3D printing was studied systematically from an uncertainty quantification/propagation (UQ/UP) perspective. Model parameters were calibrated against experimental data using Markov Chain Monte Carlo (MCMC) sampling, and posterior distributions of parameter values were propagated. It was found that discrepancies between predicted and measured melt pool depths existed under keyholing conditions, but a physics-based correction improved agreement with experiments without increasing model complexity significantly.
ADDITIVE MANUFACTURING
(2021)
Article
Engineering, Mechanical
P. L. Green, L. J. Devlin, R. E. Moore, R. J. Jackson, J. Li, S. Maskell
Summary: This paper discusses the optimization of the 'L-kernel' in Sequential Monte Carlo samplers to improve performance, resulting in reduced variance of estimates and fewer resampling requirements.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2022)
Article
Engineering, Civil
Jia-Hua Yang, Heung-Fai Lam, Yong-Hui An
Summary: The paper proposes a new two-phase adaptive MCMC method to address the problem of determining the posterior probability density function (PDF) in Bayesian model updating. By using a parameter-space search algorithm and a weighted MCMC algorithm, samples in the regions of high probability can be generated adaptively without going through computationally demanding multiple levels.
ENGINEERING STRUCTURES
(2022)
Review
Green & Sustainable Science & Technology
D. Hou, I. G. Hassan, L. Wang
Summary: Building Energy Model (BEM) calibration is crucial for accuracy, with recent focus on stochastic Bayesian inference calibration. However, confusion remains regarding theory, strengths, limitations, and implementations. Selecting appropriate mathematical models and tools poses a challenge.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Ecology
Luiza Guimaraes Fabreti, Sebastian Hoehna
Summary: This study explores different methods for assessing convergence in phylogenetics, including deriving a threshold for minimum effective sample size and converting tree samples into traces of absence/presence of splits for standard ESS computation. The Kolmogorov-Smirnov test is suggested for assessing convergence in distribution between replicated MCMC runs, while potential scale reduction factor is deemed biased for skewed posterior distributions. Additionally, the study introduces a method for computing distribution of differences in split frequencies, highlighting the importance of using the 95% quantile for checking convergence in split frequencies.
METHODS IN ECOLOGY AND EVOLUTION
(2022)
Article
Engineering, Mechanical
Adolphus Lye, Alice Cicirello, Edoardo Patelli
Summary: This tutorial paper reviews the use of advanced Monte Carlo sampling methods in Bayesian model updating for engineering applications, introducing different methods and comparing their performance. Three case studies demonstrate the advantages and limitations of these sampling techniques in parameter identification, posterior distribution sampling, and stochastic identification of model parameters.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2021)
Article
Engineering, Geological
Zening Zhao, Surya Sarat Chandra Congress, Guojun Cai, Wei Duan
Summary: The study proposed a Bayesian inference approach combined with total probability theorem to obtain the updated distributions of c(h) from a limited number of test data, recommending the use of model M-2 for calculating c(h).
Article
Engineering, Geological
Liang Han, Lin Wang, Wengang Zhang, Zhixiong Chen
Summary: This study presented a database of UCS from four sites in the Bukit Timah Granite formation in Singapore, and used Bayesian method and MCMC algorithm to quantitatively evaluate the uncertainties of statistical characteristics of UCS. The results showed significant statistical uncertainties of the three statistical characteristics of BTG rocks, which somewhat rely on the selection of basic parameters and autocorrelation function classes.
GEORISK-ASSESSMENT AND MANAGEMENT OF RISK FOR ENGINEERED SYSTEMS AND GEOHAZARDS
(2022)
Article
Agriculture, Dairy & Animal Science
M. A. Stephen, C. R. Burke, N. Steele, J. E. Pryce, S. Meier, P. R. Amer, C. V. C. Phyn, D. J. Garrick
Summary: In this study, the genetic and phenotypic relationships between anogenital distance (AGD) and body stature and fertility traits in dairy cattle were characterized. The results showed that AGD is a moderately heritable trait and is associated with reproductive success in lactating cows.
JOURNAL OF DAIRY SCIENCE
(2023)
Article
Mathematics, Applied
Hillary R. Fairbanks, Umberto Villa, Panayot S. Vassilevski
Summary: This work introduces a new hierarchical multilevel method for generating Gaussian random field realizations in a scalable manner, which is tested in a multilevel MCMC algorithm to explore its feasibility.
SIAM JOURNAL ON SCIENTIFIC COMPUTING
(2021)
Article
Engineering, Marine
Mohammad Yazdi, Faisal Khan, Rouzbeh Abbassi
Summary: Microbiologically influenced corrosion (MIC) is a significant cause of hazardous hydrocarbon release and fires. A new MIC management methodology using Continuous Bayesian Network (CBN) technique with Hierarchical Bayesian Analysis (HBA) is proposed in this paper to accurately monitor MIC activity and develop effective strategies. The integration of HBA and CBN helps overcome limitations and uncertainties in the Bayesian network, providing precise parameters values for failure probability and MIC occurrence rate.
Review
Statistics & Probability
Christopher Nemeth, Paul Fearnhead
Summary: MCMC algorithms are considered the gold standard technique for Bayesian inference, but the computational cost can be prohibitive for large datasets, leading to the development of scalable Monte Carlo algorithms. One type of these algorithms is SGMCMC, which reduces per-iteration cost by utilizing data subsampling techniques.
JOURNAL OF THE AMERICAN STATISTICAL ASSOCIATION
(2021)
Article
Engineering, Environmental
Marco Bacci, Jonas Sukys, Peter Reichert, Simone Ulzega, Carlo Albert
Summary: Due to limited knowledge about complex environmental systems, predicting their behavior under different scenarios or decision alternatives is uncertain. Considering, quantifying, and communicating this uncertainty is important for societal decisions. Stochastic models are often necessary to adequately describe uncertainty, but calibrating these models presents methodological and numerical challenges. To address this, we compare three numerical approaches and find that their performance is comparable for analyzing a stochastic hydrological model with hydrological data, suggesting that generality and practical considerations can guide technique choice for specific applications.
STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT
(2023)
Article
Engineering, Mechanical
Karthik Reddy Lyathakula, Fuh-Gwo Yuan
Summary: The paper presents an efficient and robust probabilistic fatigue life prediction framework for adhesively bonded joints, calibrating the fatigue life model with experimental data and utilizing probabilistic assessment and neural networks for prediction. This framework allows rapid simulation of fatigue degradation and quantification of uncertainties for probabilistic fatigue life prediction in various joint configurations.
INTERNATIONAL JOURNAL OF FATIGUE
(2021)
Article
Materials Science, Multidisciplinary
Adam P. Generale, Richard B. Hall, Robert A. Brockman, V. Roshan Joseph, George Jefferson, Larry Zawada, Jennifer Pierce, Surya R. Kalidindi
Summary: This study demonstrates the successful application of Bayesian inference for simultaneous estimation of eleven material parameters of a viscous multimode CDM model, providing uncertainty estimates and principled decision making, applicable to mechanical models with high-dimensional parameter sets.
MECHANICS OF MATERIALS
(2022)
Article
Environmental Sciences
Hossein Mahdizadeh, Soroosh Sharifi
Summary: The study presents an extended Godunov-type wave propagation algorithm for modeling morphodynamic systems using both coupled and splitting approaches. The coupled method provides accurate predictions for all investigated flow regimes, while the splitting method is capable of modeling all flow regimes with a lower CFL number.
INTERNATIONAL JOURNAL OF SEDIMENT RESEARCH
(2021)
Article
Engineering, Environmental
Benjamin U. Okoro, Soroosh Sharifi, Mike Jesson, John Bridgeman, Rodrigo Moruzzi
Summary: This study compared the performance of three different plant-based coagulation products used in water treatment in developing countries, focusing on their ability to remove natural organic matter and turbidity. The results showed that these coagulants performed well in water purification, but attention to the optimal dosage is necessary to avoid potential increases in disinfection by-products.
Article
Engineering, Environmental
Clement Roche, Sylvain Donnaz, Sudhir Murthy, Bernhard Wett
Summary: The full-scale demonstration of activated sludge conversion into a granule-floc hybrid process in the Dijon water resource recovery facility was successful in optimizing settleability and process robustness. The densified biomass maintained stable SVIs below 100 ml/g for several months and achieved a year-round SVI below 50 ml/g, breaking the cycle of interannual bulking. Controlling granule-floc proportions allows for improved operational adjustments and design accuracy, enabling stable settling and effluent functionalities.
WATER ENVIRONMENT RESEARCH
(2022)
Article
Management
Muyiwa Oyinlola, Patrick Schroder, Timothy Whitehead, Oluwaseun Kolade, Kutoma Wakunuma, Soroosh Sharifi, Barry Rawn, Victor Odumuyiwa, Selma Lendelvo, Geoff Brighty, Bosun Tijani, Tomi Jaiyeola, Lukonga Lindunda, Radhia Mtonga, Soroush Abolfathi
Summary: The paper examines the current condition of plastic value chains in Africa and explores how digital innovations can contribute to a circular plastic economy in the region. Research shows that various digital solutions, including web-based platforms, mobile apps, and 3D printing, are being employed by African entrepreneurs. Case studies reveal that multinational companies, particularly consumer brands, play a significant role in local plastic value chains as seed funders for start-ups and buyers of recycled plastics. Ongoing initiatives indicate positive progress in addressing the environmental and social impacts of plastic value chains in Africa. However, policy changes are needed to promote the growth of local start-ups, address regulatory barriers to digital solutions, establish markets for recycled plastic materials, and implement extended producer responsibility regulations.
AFRICA JOURNAL OF MANAGEMENT
(2022)
Article
Engineering, Environmental
Wafaa Ali, Husna Takaijudin, S. R. M. Kutty, Arash Massoudieh
Summary: This study reports the results of nitrogen and phosphorus removal using modified bioretention systems. Sequencing these systems in a series maintained the continuity of nutrient removal. Durian peel is considered a promising material that can enhance the water quality in bioretention systems, outperforming coconut husk.
JOURNAL OF ECOLOGICAL ENGINEERING
(2022)
Article
Engineering, Marine
Amir Bordbar, Soroosh Sharifi, Zijian Guo, Hassan Hemida
Summary: This research aimed to investigate the flow behavior and evolution of local scour around two side-by-side piers using numerical methods. A hydro-morphodynamic model was developed and validated with experimental data. The results showed an inverse correlation between the spacing ratio of the piers and the scour hole depth.
Article
Engineering, Environmental
Khoa Nam Ngo, Patrexia Tampon, Tim Van Winckel, Arash Massoudieh, Belinda Sturm, Charles Bott, Bernhard Wett, Sudhir Murthy, Siegfried E. Vlaeminck, Christine DeBarbadillo, Haydee De Clippeleir
Summary: This study proposes a novel control approach using bioflocculation boundaries to enhance effluent quality and stability in high-rate activated sludge (HRAS) systems. The control strategy manipulates the wasting setpoint based on the oxygen uptake rate (OUR) ratio to overcome bioflocculation limitation and maintain effluent quality. Significant improvements in effluent quality, solids capture, and COD capture were achieved with this control approach.
WATER ENVIRONMENT RESEARCH
(2022)
Article
Engineering, Environmental
Manal Osman, Husna Takaijudin, Arash Massoudieh, Hui Weng Goh
Summary: This study used Cascaded Bioretention to enhance nutrient removal from agricultural runoff. Increasing the number of treatments significantly improved nitrogen removal, while phosphorus removal was less sensitive to treatment frequency.
ENVIRONMENTAL ENGINEERING RESEARCH
(2023)
Article
Engineering, Civil
Amir Bordbar, Hassan Hemida, Soroosh Sharifi
Summary: In this study, the performances of two commonly used sand sliding techniques, namely, the artificial transport rate method (ATRM) and the geometry-based method (GBM), were evaluated in numerical modelling of scour around riverine and coastal structures. The results showed that modelling of the sand sliding procedure using ATRM required longer computational time, but had lower mass continuity error and was highly independent of the bed mesh structure compared to GBM. The sensitivity of the sand sliding methods coupled with a hydro-morphodynamic model to different bed mesh structures was also evaluated in modelling scour.
PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-MARITIME ENGINEERING
(2022)
Article
Engineering, Environmental
Benjamin U. Okoro, Soroosh Sharifi, Mike Jesson, John Bridgeman
Summary: This study evaluates the coagulation performance of kenaf protein fractions in different turbidity water. The results indicate that the globulin protein fraction is the most effective and pH-sensitive. It can be used as a primary coagulant and coagulant aid, resulting in high turbidity and solids removal.
WATER ENVIRONMENT RESEARCH
(2022)
Review
Green & Sustainable Science & Technology
Badir S. Alsaeed, Dexter V. L. Hunt, Soroosh Sharifi
Summary: This study conducts a systematic review of existing assessment frameworks for sustainable water resources management in arid and semi-arid regions. The results suggest that the current frameworks are not fully applicable in these regions, and highlight the need for developing a new bespoke framework.
Article
Water Resources
Mohammad Almadani, Christopher Nietch, Arash Massoudieh
Summary: This study aimed to evaluate the effectiveness of different stormwater control measures (SCMs) design scenarios on streamflow at the watershed scale. The results showed that at least a 50% retrofit of runoff from impervious areas would be needed to achieve similar predevelopment flows. Concentrating the SCMs in the lower portion of the watershed resulted in more effectively achieving the predevelopment exceedance curves than uniform SCM implementation.
JOURNAL OF SUSTAINABLE WATER IN THE BUILT ENVIRONMENT
(2023)
Article
Computer Science, Interdisciplinary Applications
Arash Massoudieh, Khiem Nguyen, Sudhir Murthy
Summary: Sub-disciplines within the water sector are divided into specialty domains, resulting in modeling tools for flow and water quality based on pre-determined equations. However, there is a need to integrate different sets of equations to address complex problems that involve interactions between multiple domains. This paper presents an extensible modeling framework that allows user-defined model components to be added using plugins, enabling adaptability to specific needs and objectives. The framework's data structure for describing model components, properties, and equations used for computation is also discussed. Four examples highlighting the multi-domain capability of the framework are provided.
ENVIRONMENTAL MODELLING & SOFTWARE
(2023)
Article
Engineering, Multidisciplinary
Salwa Ramly, Wardah Tahir, Janmaizatulriah Jani, Soroosh Sharifi, Jazuri Abdullah
Summary: The aim of this research is to develop an integrated system for simulating future flood extents by coupling flood and urban growth models, to aid in better planning and management of cities in developing countries like Malaysia.
INTERNATIONAL JOURNAL OF INTEGRATED ENGINEERING
(2022)
Review
Engineering, Environmental
Benjamin U. Okoro, Soroosh Sharifi, Mike A. Jesson, John Bridgeman
Summary: This review paper discusses the use of plant-based coagulants to remove NOM in water, examines the effects of various operational parameters on NOM and turbidity removal, and provides suggestions for overcoming commercialization obstacles.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Rong-Gui Zhu, Chang-Gui Pan, Feng-Jiao Peng, Chao-Yang Zhou, Jun-Jie Hu, Kefu Yu
Summary: This comprehensive survey investigated the occurrence, bioaccumulation, and trophic magnification of parabens and their metabolite 4-HB in a marine food web. Results showed that parabens were the predominant pollutants in marine organisms, with significant bioaccumulation from sediments. The estimated trophic magnification factor indicated biomagnification for MeP and trophic dilution for 4-HB. Overall, the risks for humans consuming marine organisms were found to be low.
Article
Engineering, Environmental
Andres F. Torres-Franco, Deborah Leroy-Freitas, Cristina Martinez-Fraile, Elisa Rodriguez, Pedro A. Garcia-Encina, Raul Munoz
Summary: Anaerobic and microalgae-based technologies have emerged as sustainable alternatives for municipal wastewater treatment. However, the presence of viruses in the treated wastewater is a major concern for reuse applications. This study assessed the ability of these technologies to reduce viruses during secondary wastewater treatment. The results showed that all technologies were effective in reducing the concentration of viruses, with microalgae-based treatment exhibiting the highest potential for reducing the disinfection requirements of treated wastewater.
Article
Engineering, Environmental
Young Gwang Kim, Sae Yun Kwon, Spencer J. Washburn, Scott C. Brooks, Ji Won Yoon, Lucien Besnard
Summary: The study uses Hg isotope ratios to identify the sources and exposure pathways of mercury in bivalves, finding that dissolved Hg phases in the water column are the primary source and exposure pathway to bivalves. This provides new insights into using bivalves as bioindicators for sediment quality monitoring.
Article
Engineering, Environmental
Hui Geng, Ying Xu, Rui Liu, Dianhai Yang, Xiaohu Dai
Summary: This study investigates the effect of cation exchange resin (CER) on the sequential recovery of hydrogen and methane from anaerobic digestion (AD) and the corresponding mechanisms. The results show that CER can simultaneously enhance the production of hydrogen and methane by promoting the solubilisation, hydrolysis, and acidification of organic matter. Additionally, CER facilitates effective contact between bacteria and organic particulates and reduces the energy barrier for mass transfer during methane production. The study also reveals changes in the microbial community structure and metagenomics during the AD process.
Article
Engineering, Environmental
Xiaojing Lin, Zhan Jin, Shunfeng Jiang, Zhiquan Wang, Suqing Wu, Ke Bei, Min Zhao, Xiangyong Zheng
Summary: Dehumidification combined with addition of absorbent resin supplement (ARS) was used to achieve rapid evaporation of non-pretreated urine, resulting in high water evaporation efficiency and nutrient recovery.
Article
Engineering, Environmental
Yangli Che, Chaoran Lin, Shen Li, Jiao Liu, Longhai Zhu, Shilei Yu, Nan Wang, Haoshuai Li, Mutai Bao, Yang Zhou, Tonghao Si, Rui Bao
Summary: Hydrodynamic processes play a crucial role in the transmission of sediments, microbial assembly, and organic carbon redistribution in the ocean. Through experiments and analysis, we found that hydrodynamics shape the assembly of microbial communities and control the redistribution of different sourced organic carbon, thereby influencing microbial-mediated biogeochemical transformation.
Article
Engineering, Environmental
Chao Chen, Yu Yang, Nigel J. D. Graham, Zhenyu Li, Xingtao Yang, Zhining Wang, Nadia Farhat, Johannes S. Vrouwenvelder, Li -an Hou
Summary: The fouling of seawater reverse osmosis membranes is a persistent challenge in desalination. This study monitored the operational performance of a desalination plant for 7 years and the fouling development in different areas of membrane modules. The findings showed that operational performance declined over time and fouling mainly occurred at the feed side of the modules, with the highest microbial diversity. Keystone species like Chloroflexi and Planctomycetes played an important role in maintaining community structure and biofilm maturation. Polysaccharides, soluble microbial products, marine humic acid-like substances, and inorganic substances contributed to fouling. Overall, biofouling had a significant impact on membrane fouling after 7 years of operation.
Article
Engineering, Environmental
Dan Li, Jieyi Sun, Yibo Fu, Wentao Hong, Heli Wang, Qian Yang, Junhong Wu, Sen Yang, Jianhui Xu, Yunfei Zhang, Yirong Deng, Yin Zhong, Ping'an Peng
Summary: Sulfidation-oxidation treatment of magnetite (Fe3O4) enhances the production of dark center dot OH, which can efficiently degrade dissolved organic matter (DOM) and accelerate carbon cycling.
Article
Engineering, Environmental
Cheng Yu, Kaijun Wang, Kaiyuan Zhang, Ruiyang Liu, Pingping Zheng
Summary: This study implemented a microaerobic-aerobic configuration in a full-scale municipal wastewater treatment facility and investigated the effects on sludge characteristics, pollutant removal, microbial community, and granulation mechanisms. The results showed successful transition from flocculent-activated sludge to well-defined AGS after two months of operation. The primary pathways for pollutant removal were simultaneous nitrification, denitrification, and phosphorus removal. Moreover, the incorporation of internal separators induced shifts in the flow pattern, which promoted granulation.
Article
Engineering, Environmental
Zhe Zhang, Shaoyang Hu, Guangrong Sun, Wei Wang
Summary: Halogenated aromatic disinfection byproducts (DBPs), such as halogenated phenols, have garnered widespread attention due to their high toxicity and prevalence. This study reports on the analysis, occurrence, and cytotoxicity of a group of emerging halogenated aromatic DBPs, known as halogenated polyhydroxyphenols (HPPs), in drinking water.
Article
Engineering, Environmental
Shengyue Chen, Jinliang Huang, Peng Wang, Xi Tang, Zhenyu Zhang
Summary: Accurate prediction of river water quality is crucial for sustainable water management. This study introduces wavelet analysis and transfer learning techniques to assist LSTM modeling, proposing a newly coupled modeling approach that improves short-term prediction of river water quality.
Article
Engineering, Environmental
Bang Du, Xinmin Zhan, Piet N. L. Lens, Yifeng Zhang, Guangxue Wu
Summary: Efficient anaerobic digestion relies on the cooperation of different microorganisms with different metabolic pathways. This study investigated the effects of different operational modes and the addition of powdered activated carbon (PAC) on ethanol metabolic pathways. The results showed that the SBR mode and the presence of CO2 facilitated ethanol metabolism towards propionate production, while the CFR mode with extended solids retention time enriched Geobacter. Adjusting operational modes and PAC addition can modulate anaerobic ethanol metabolism and enrich Geobacter.
Article
Engineering, Environmental
Wanfa Wang, Si-Liang Li, Jun Zhong, Yuanbi Yi, Fujun Yue, Zenglei Han, Qixin Wu, Ding He, Cong-Qiang Liu
Summary: This study compares the carbon biogeochemical processes in karst and non-karst regions within large thermal stratified river-reservoir systems. The results demonstrate that karst reservoirs have a reduced potential for carbon emissions and highlight the importance of considering geologic settings to improve accuracy in regional and global CO2 emission estimates.
Article
Engineering, Environmental
Chunxia Jiang, Zelong Zhao, Dong Zhu, Xiong Pan, Yuyi Yang
Summary: This study analyzed the occurrence and distribution of antibiotic resistance genes (ARGs) in different environmental media of the Yangtze River using metagenomics. Core resistome dominated by multidrug resistance genes was found in all samples, while rare resistome dominated by various resistance genes was more prevalent in plasmids. Specific bacteria were identified as hosts for both core and rare resistomes, with high clinical concern ARGs found in the rare resistome. Particle-associated environment provided the most ideal conditions for resistome hosts. This study provided insights into the genetic locations of ARGs and the community assembly mechanisms of ARG hosts in freshwater environments.
Article
Engineering, Environmental
Yu Zhang, Yongtao He, Linchun Jia, Lei Xu, Zheng Wang, Yueling He, Ling Xiong, Xumeng Lin, Hong Chen, Gang Xue
Summary: By synergizing organic carbon source, thiosulfate, and zero-valent iron, efficient mixotrophic denitrification of oligotrophic secondary effluent can be achieved. Thiosulfate plays a vital role in promoting TN removal efficiency, while corrosion of Fe0 releases OH- to neutralize H+ from thiosulfate-driven denitrification, creating a suitable environment for denitrification. The coordination of thiosulfate and Fe0 maintains the dominance of Thiobacillus for denitrification.
