Article
Chemistry, Physical
Biaohua Chen, Dahai Zheng, Ruinian Xu, Shuai Leng, Lili Han, Qianqian Zhang, Ning Liu, Chengna Dai, Bin Wu, Gangqiang Yu, Jie Cheng
Summary: With the rapid growth of passenger cars in China, waste passenger car tires have become one of the fastest growing solid wastes. This study investigates the current disposal capacity of the pyrolysis method for waste passenger car tires and predicts the future total number of waste tires based on car growth rate and disposal capacity. Additionally, an evaluation of pyrolysis on 15 collected waste tires was conducted, revealing the limitations and the potential of a new pyrolysis technology.
GREEN ENERGY & ENVIRONMENT
(2022)
Article
Engineering, Geological
Javier Samper, Alba Mon, Luis Montenegro, Acacia Naves
Summary: This paper presents coupled THCM numerical simulations of laboratory and in situ tests performed with compacted Full-scale Engineered Barrier Experiment (Febex) bentonite. The simulations fit the measured data and show differences under various conditions, with long-term simulations indicating significant changes in porosity near the canister.
ENVIRONMENTAL GEOTECHNICS
(2021)
Article
Computer Science, Interdisciplinary Applications
Zorica Radakovic-Guzina, Branko Damjanac, Tom Lam, Hossein A. Kasani
Summary: Evaluation of stability and damages in the geosphere surrounding a deep geological repository is crucial for assessing repository performance. In this study, a novel approach based on the bonded block model is used to simulate damage evolution and fracturing around the repository rooms. The results indicate that the hypothetical DGR configurations have good stability in both sedimentary and crystalline geological settings.
COMPUTERS AND GEOTECHNICS
(2023)
Article
Computer Science, Information Systems
Zedi Wang, Yun Teng, Hongyang Jin, Zhe Chen
Summary: This paper introduces the topology and optimal model of the Multi-energy Waste Disposal System (MEWDS), which aims to maximize economic benefits by coordinating the operation of multi-energy systems and waste disposal facilities. The proposed MEWDS optimal model can reduce waste, optimize economic benefits, and enhance power grid regulation flexibility.
Article
Engineering, Geological
Andrea Dominijanni, Mario Manassero
Summary: New analytical solutions are proposed to assess the impact of contaminant transport through landfill liners on groundwater quality under steady-state conditions. These solutions are applicable to evaluate the equivalency and effectiveness of landfill liners with or without geomembranes, considering the presence of a natural attenuation layer. The research quantifies the contaminant impact on groundwater quality by determining the contaminant concentration along the horizontal direction of groundwater flow in thin aquifers and provides analytical and numerical solutions for thick aquifers.
ENVIRONMENTAL GEOTECHNICS
(2021)
Article
Mechanics
Wenjing Lyu, Sedong Kim, Antonio Delgado, Bernhard Gatternig, Klaus Troeger, Thomas Schellin
Summary: This study developed and validated a numerical model based on open-source tool libraries to analyze gas-gas mixing phenomena. The results showed that obstacles accelerated gas-gas diffusion and convection, and diffusion and convection stabilized after a certain time period. Stronger diffusion and convection occurred during the initial stages of gas-gas contact.
Article
Engineering, Geological
Sathee Surendran Surya, Dali Naidu Arnepalli
Summary: The study presents a simplified gas permeability apparatus for evaluating the gas permeability characteristics of geomaterials at various temperatures and compaction states. A prediction model is proposed to estimate the gas permeability characteristics of different geomaterials based on soil-water characteristics, considering the effect of temperature. The efficacy of the model has been demonstrated through validation with experimental results and literature data.
ENVIRONMENTAL GEOTECHNICS
(2021)
Article
Green & Sustainable Science & Technology
Khairulnadzmi Jamaluddin, Sharifah Rafidah Wan Alwi, Zainuddin Abd Manan, Khaidzir Hamzah, Jiri Jaromir Klemes, Roziah Zailan
Summary: This study focuses on a cascade analysis method for a nuclear trigeneration system, considering life cycle costing. The results show that the optimal configuration requires 1,102.25 MW of thermal energy and has an equivalent annual cost of 1.89 x 1011 USD.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Environmental Sciences
Merce Roca, Silvia Ayuso, Alba Bala, Rosa Colome, Pere Fullana-I-Palmer
Summary: By conducting telephone and online surveys, this research studied citizens' evaluation and expected behavior towards the implementation of a Packaging Deposit and Refund System (DRS) in Catalonia. The results from the two surveys showed substantial differences, with the telephone survey presenting a more positive perception of the DRS and higher willingness to adopt the system.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Review
Green & Sustainable Science & Technology
Parvin Berenjkar, Yu Yan Li, Qiuyan Yuan
Summary: The complexity of waste management systems due to different waste management practices makes them difficult to analyze, but the System Dynamics approach helps in conceptualizing and evaluating these systems. By studying waste management practices in various countries, strategies can be developed to achieve goals such as expanding landfill life span and mitigating global warming. Increasing waste reduction, source separation, and recycling rates can decrease environmental impact, but may not always be economically profitable. Incentives for waste separation and knowledge about waste management consistently have a positive impact on the entire system.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2021)
Article
Green & Sustainable Science & Technology
Lauren M. Degenstein, Rachel H. McQueen, Naomi T. Krogman
Summary: This study focuses on exploring Canadian consumers' clothing disposal behaviors and finding ways to reduce landfilling of clothing. Through an online survey of residents in Edmonton, the results reveal the relationship between consumer behavior and the recycling of textile waste, as well as potential alternatives to reduce textile waste.
JOURNAL OF CLEANER PRODUCTION
(2021)
Review
Environmental Sciences
Abdolmajid Fadaei
Summary: The improper management of medical waste is a severe global public health problem. This study investigated and evaluated the current state of medical waste management in different countries, revealing deficiencies in waste segregation, storage, transportation, and disposal activities. The study also found a negative correlation between medical waste generation rate and healthcare system performance ranking.
REVIEWS ON ENVIRONMENTAL HEALTH
(2023)
Article
Nuclear Science & Technology
Abdulla Hashim Al Nuaimi, Laurence Glynn Williams
Summary: The United Arab Emirates is planning to reduce its carbon footprint by setting up the Barakah Nuclear Power Plant project. The country aims to establish a comprehensive radioactive waste inventory management system to effectively manage its nuclear waste.
PROGRESS IN NUCLEAR ENERGY
(2022)
Article
Materials Science, Ceramics
Yuan-Bin Chen, Wei-Chao Bao, Shi-Kuan Sun, Lewis R. Blackburn, Zi-Jun Wei, Wei-Ming Guo, Hua-Tay Lin
Summary: The evolution of phase assemblage and microstructure of stoichiometric zirconolite (CaZrTi2O7) ceramics prepared by solid-state reaction sintering route was systematically studied with respect to sintering temperature. It was found that the formation of zirconolite was a one-step reaction without intermediate phase formation, confirmed by powder XRD and quantitative phase analysis data. After sintering at 1200 degrees C, the secondary phases of CaTiO3 and ZrO2 were reduced to approximately 2 wt% each, while zirconolite became the major phase (>99 wt%) after reaction at 1300 degrees C. Significant product densification only occurred at T >= 1400 degrees C, achieving a highly desirable relative density of 96.97% for nuclear wasteform applications. The expected zirconolite-2M polytype structure (space group: C2/c) was confirmed in all products through combined high-resolution TEM-ED analyses.
CERAMICS INTERNATIONAL
(2023)
Article
Business
Stefania Testa, Ciro Troise, Silvano Cincotti, Mark Anthony Camilleri
Summary: Electronics waste (e-waste) is rapidly increasing and requires attention in terms of management and control on crowdfunding platforms. This research explores the influence of e-waste management solutions and message framing on consumer behaviors in crowdfunding contexts. Findings suggest that sustainable projects focused on waste reduction and pollution prevention are attracting funds and interest from crowd investors, and well-crafted framing messages on environmental protection can increase crowdfunding success. This research contributes to environmental management and crowdfunding literature, with practical implications for sustainable entrepreneurs and other stakeholders.
BUSINESS STRATEGY AND THE ENVIRONMENT
(2023)
Article
Thermodynamics
Xu Shiming, Leng Qiang, Wu Xi, Xu Zhijie, Hu Junyong, Wu Debing, Jing Dongxu, Wang Ping, Dong Fujiang
Summary: Experimental investigation on a series system with multi-stage reverse electrodialysis reactor (REDR) showed effective degradation of azo dye wastewater and simultaneous electricity generation. Increasing output current improved decolorization efficiency but reduced the number of reactors, impacting total decolorization rate.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Respiratory System
Zhi-Jie Xu, Ze-Guo Zhuo, Tie-Niu Song, Gang Li, Gu-Ha Alai, Xu Shen, Peng Yao, Yi-Dan Lin
Summary: The PRILA technique shows promising results in MIIVE procedures, reducing operation time and ensuring precision. Patients recover well postoperatively with no major complications.
JOURNAL OF THORACIC DISEASE
(2021)
Article
Nanoscience & Nanotechnology
Lianfeng Zou, Peiyuan Gao, Haiping Jia, Xia Cao, Haiping Wu, Hui Wang, Wengao Zhao, Bethany E. Matthews, Zhijie Xu, Xiaolin Li, Ji-Guang Zhang, Wu Xu, Chongmin Wang
Summary: Solid-electrolyte interphases (SEI) are crucial for maintaining the cycling stability of rechargeable batteries. The traditional approach of interphase design, which decomposes additives before the host electrolyte, is limited by thermodynamic rules. In this study, we propose an alternative method using a nonsacrificial additive, fluoroethylene carbonate (FEC), to enhance the cycling stability by modifying the chemistry, structure, and formation mechanism of the cathode-electrolyte interphase (CEI) layers in localized high-concentration electrolytes. Ab initio molecular dynamics simulations reveal that the FEC-Li+ coordinated environment activates usually inert species in interphase formation by altering their electronic states. This nonsacrificial additive opens up new possibilities for interphase design, utilizing commonly overlooked compounds with anodic stability.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Engineering, Chemical
Yucheng Fu, Jie Bao, Rajesh Kumar Singh, Richard Feng Zheng, Christine M. Anderson-Cook, K. Sham Bhat, Zhijie Xu
Summary: Carbon dioxide capture through solvent absorption in packed columns has shown potential for mitigating CO2 emissions from coal-fired power plants. Parameters such as packing types, solvent properties, and operating conditions can influence the efficiency of CO2 capture in packed columns. By using a design of experiments method and multiphase computational fluid dynamics, the impact of random packed column parameters on liquid holdup and interfacial area can be efficiently investigated. Sensitivity analysis indicates that the solvent flow rate and contact angle are key factors affecting liquid holdup and interfacial area, while solvent viscosity has minimal impact on interfacial area. The sensitivity scores for each input parameter can guide the selection of dimensionless numbers for developing correlations of liquid holdup and interfacial area.
Article
Multidisciplinary Sciences
Yucheng Fu, William E. Frazier, Kyoo Sil Choi, Lei Li, Zhijie Xu, Vineet V. Joshi, Ayoub Soulami
Summary: This study proposes a machine learning surrogate model combined with sensitivity analysis to predict the microstructure development of U-10Mo alloy, providing a solution for process optimization.
SCIENTIFIC REPORTS
(2022)
Article
Engineering, Chemical
Chao Zeng, Yucheng Fu, Rajesh Singh, Jie Bao, Zhijie Xu
Summary: This study employs the CFD method to investigate the static and dynamic interfacial areas in Mellapak 500.Y structured packing and explores the effects of various physical properties on these two areas. The results show that the relationship between interfacial area and interfacial velocity at the local scale can be accurately described by a gamma distribution. Viscosity has the dominant influence on the static area, while the contact angle has the most importance for the interfacial area. The study also highlights the importance of viscosity, which is usually ignored.
CHEMICAL ENGINEERING SCIENCE
(2022)
Article
Engineering, Environmental
Rajesh Kumar Singh, Yucheng Fu, Chao Zeng, Du Thai Nguyen, Pratanu Roy, Jie Bao, Zhijie Xu, Grigorios Panagakos
Summary: The computational investigation of countercurrent flows in an additive-manufactured column packed with TPMS is challenging. Multiphase flow simulations using the VOF method show that increasing liquid loads lead to higher interfacial area and liquid holdup. The EEMPA solvent displays higher interfacial area and liquid holdup values compared to MEA.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Yucheng Fu, Jie Bao, Chao Zeng, Yunxiang Chen, Zhijie Xu, Soowhan Kim, Wei Wang
Summary: A 3D pore-scale model was developed to construct multiscale fibrous electrodes for redox flow batteries. Two types of electrodes, laser-perforated and biporous, were investigated and their performance was evaluated under different operating conditions. The study found that the biporous electrode showed improved battery efficiency due to its increased specific surface area and faster reaction kinetics. However, operating the biporous electrode under limiting current density conditions should be avoided.
JOURNAL OF POWER SOURCES
(2023)
Article
Electrochemistry
Chao Zeng, Soowhan Kim, Yunxiang Chen, Yucheng Fu, Jie Bao, Zhijie Xu, Wei Wang
Summary: The research focused on the mechanism and performance of aqueous redox flow batteries with organic redox-active materials, extracting key parameters through experiments and simulations and comparing them with traditional all-vanadium redox flow batteries.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
William E. Frazier, Lei Li, Kyoo Sil Choi, Yucheng Fu, Zhijie Xu, Vineet Joshi, Ayoub Soulami
Summary: A coupling of Kinetic Monte Carlo (KMC) Potts Model and finite element method (FEM) simulations was used to study the effects of microstructural features in U-10Mo foils on the emergent microstructure after rolling and reheating. Parameters including grain size distribution, uranium carbide (UC) size distribution, UC volume fraction, spatial distribution of UC, and rolling reduction magnitude were considered. Grain structure and rolling reduction magnitude had the strongest influence on recrystallization kinetics and grain size distribution, while the UC distribution had only a weak effect. Particle-stimulated nucleation (PSN) occurred more frequently as grain size increased but did not significantly affect recrystallization kinetics or grain size distribution.
JOURNAL OF NUCLEAR MATERIALS
(2023)
Article
Electrochemistry
Chao Zeng, Soowhan Kim, Yunxiang Chen, Yucheng Fu, Jie Bao, Zhijie Xu, Wei Wang
Summary: An in situ electroanalytical technique is proposed to measure polarization curves and high-frequency resistance in VRFB, allowing characterization of electrolyte and electrode performance. This technique obtained key parameters through deconvolution of the polarization curve, which were used for full-cell simulations that matched experimental tests. It provides an invaluable approach for understanding and improving redox flow batteries.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Yucheng Fu, Rajesh K. Singh, Shuo Feng, Jun Liu, Jie Xiao, Jie Bao, Zhijie Xu, Dongping Lu
Summary: The utilization of low-porosity cathodes in lithium-sulfur batteries has been identified as a strategy to improve the cell's energy density and extend its life. A multiscale modeling approach was used to study the impact of low-porosity electrodes on electrode wetting and electrolyte diffusion, providing insights into the design and optimization of electrode materials. This study is expected to accelerate the development of high-energy lithium-sulfur batteries.
ADVANCED ENERGY MATERIALS
(2023)
Article
Multidisciplinary Sciences
Zhijie Xu
Summary: Small scale challenges in understanding dark matter suggest the need for additional insights, which are provided by the proposed cascade theory. This theory explains the energy cascade from small to large scales in dark matter and establishes mathematical relationships for the kinetic energy and mean halo density. Key constants on relevant scales can help in obtaining critical properties of dark matter.
SCIENTIFIC REPORTS
(2023)
Proceedings Paper
Computer Science, Artificial Intelligence
Brian Bartoldson, Rui Wang, Yucheng Fu, David Widemann, Sam Nguyen, Jie Bao, Zhijie Xu, Brenda Ng
Summary: The CO2 capture efficiency in solvent-based carbon capture systems highly depends on the gas-solvent interfacial area (IA), which poses a fundamental challenge in CCS design. Previous research has shown that neural network surrogate models can replace costly computational fluid dynamics (CFD) simulations, leading to faster and more accurate estimation of IA for CCS design optimization. This study builds upon this approach to develop optimized surrogate models that achieve significant speedup while maintaining low IA prediction errors.
THIRTY-SIXTH AAAI CONFERENCE ON ARTIFICIAL INTELLIGENCE / THIRTY-FOURTH CONFERENCE ON INNOVATIVE APPLICATIONS OF ARTIFICIAL INTELLIGENCE / TWELVETH SYMPOSIUM ON EDUCATIONAL ADVANCES IN ARTIFICIAL INTELLIGENCE
(2022)
Article
Chemistry, Multidisciplinary
Shuo Feng, Rajesh Kumar Singh, Yucheng Fu, Zhuo Li, Yulong Wang, Jie Bao, Zhijie Xu, Guosheng Li, Cassidy Anderson, Lili Shi, Yuehe Lin, Peter G. Khalifah, Wei Wang, Jun Liu, Jie Xiao, Dongping Lu
Summary: In this study, a simple strategy was demonstrated for constructing low-tortuosity through-pores in both vertical and planar directions of electrodes by casting large particles into single-particle-layer electrodes. Through multi-scale characterizations and simulations, correlations between material/electrode structures, electrolyte permeability, polysulfide migration, and sulfur reactions were elucidated. The high-loading and dense sulfur cathode fabricated by this method delivers a high specific capacity at a very low electrolyte/sulfur ratio.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)