Article
Engineering, Environmental
Miao Yan, Changrui Wang, Ying Li, Hailin Tian, Yongming Sun
Summary: Most anaerobic digestion reactors are operated under mesophilic and thermophilic conditions, but an optimized method for psychrotrophic anaerobic digestion (PAD) would have economic and environmental benefits as an alternative. This study investigated the conditions and mechanism to optimize PAD and found that intermittent bioaugmentation with mesophilic propionate-degrading consortia enhanced methane production. Metagenomic analysis revealed a higher cold tolerance of the bacterial community than methanogen community. Coupling reactor performance with microbial metabolic analysis, this study provides comprehensive findings for boosting the PAD process by intermittent bioaugmentation with methanogenic consortia.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Agricultural Engineering
Zifan Wang, Weikang Zhang, Xiujuan Xing, Xiu Li, Derui Zheng, Huanyu Bao, Lizhen Xing
Summary: This study investigated the effects of Fe3O4 on propionate methanogenesis in ASBR. The addition of Fe3O4 decreased the maximum methane production rate and inhibited interspecies electron transfer. The microbial community analysis revealed changes in the relative abundance of certain bacterial species. Metagenomics analysis showed a decrease in hydrogenotrophic methanogenesis genes and an increase in acetate oxidation genes. Thus, Fe3O4 addition reduces propionate methanogenesis during anaerobic digestion.
BIORESOURCE TECHNOLOGY
(2022)
Article
Agricultural Engineering
Han Wang, Qun Yan, Xiaoqian Zhong, Irini Angelidaki, Ioannis A. Fotidis
Summary: Anaerobic co-digestion is a strategy for increasing methane production, but substrates rich in proteins and lipids can cause a synergetic co-inhibition effect. This study explored the microbial mechanisms behind the co-inhibition effect and found that ammonia played a major role in affecting methanogens. Decreased abundances of certain microorganisms and critical enzymes confirmed the synergetic co-inhibition effect.
BIORESOURCE TECHNOLOGY
(2023)
Article
Agricultural Engineering
Lucia Blasco, Minna Kahala, Satu Ervasti, Elina Tampio
Summary: This study investigated the effects of co-feedstock changes on the performance and evolution of microbial consortia in anaerobic digestion of cow slurry. Despite drastic changes in co-feedstock composition, stable and flexible anaerobic digestion can be achieved with cautious operation of the process.
BIORESOURCE TECHNOLOGY
(2022)
Article
Agricultural Engineering
Yonghua Xu, Xianghui Meng, Yunong Song, Xiaoyi Lv, Yong Sun
Summary: Investigating the effect of butyric acid concentration on anaerobic digestion systems in complex systems is crucial for efficient degradation of butyric acid and improving anaerobic digestion efficiency. In this study, different loadings of butyric acid were added to the anaerobic reactor, and at a high organic loading rate, efficient methane production was achieved with a volumetric biogas production of 1.50 L/(L center dot d) and biogas content between 65% and 75%. Metagenome sequencing revealed changes in the functional flora, indicating significant improvement in the methanogenic capacity of the system.
BIORESOURCE TECHNOLOGY
(2023)
Article
Environmental Sciences
Changmin Lee, Munsol Ju, Jongkeun Lee, Seunghwan Kim, Jae Young Kim
Summary: This study aimed to investigate the chronic effects and recovery from inhibition in the anaerobic digestion of swine manure containing chlortetracycline. Two reactors were operated for 900 days, with one reactor spiked with CTC. Methane generation and organic removal did not recover within 300 days after CTC exposure was stopped, due to reduced bacterial diversity and shift in microbial species under long-term antibiotic pressure. Continuous exposure to CTC should be avoided for sustainable management of AD plants treating swine manure.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Agricultural Engineering
M. L. Christou, S. Vasileiadis, S. D. Kalamaras, D. G. Karpouzas, I. Angelidaki, T. A. Kotsopoulos
Summary: In this study, the operation of three CTSRs under different OLR conditions revealed that increasing the OLR to raise the C/N ratio can intensify the inhibition of anaerobic processes, especially under high ammonia concentration. Different responses of bacterial and archaeal communities were observed under ammonia stress conditions. Additionally, the dominant methanogenesis route varied depending on the OLR and ammonia concentration.
BIORESOURCE TECHNOLOGY
(2021)
Article
Engineering, Environmental
Wenxiong Jin, Zhuangqiang Dai, Ligong Wang, Fanfan Cai, Chao Song, Guangqing Liu, Chang Chen
Summary: The dramatic increase of textile wastes has led to concerns about environmental pollution and resource waste. Anaerobic digestion is a cost-effective and eco-friendly method to convert organic wastes into clean energy. This study applied anaerobic digestion to 11 commonly available textile wastes and found that it could effectively decompose the wastes and produce methane. The study also provided important data on the degradation mechanism and methane production from textile wastes.
Article
Environmental Sciences
Nan Wang, Yutong Yang, Kunde Xu, Xiangang Long, Yurui Zhang, Hongzhou Liu, Tiezhu Chen, Jianchang Li
Summary: This study investigated the reasons behind the higher methane conversion and lower CO2 emissions in electrochemical anaerobic digestion (EAD) compared to anaerobic digestion (AD). Single-chamber AD and EAD reactors were utilized, with temperature as the variable factor. Various indicators such as current, pH, electrode potential, gas content, and microbial community were analyzed. The results revealed that EAD exhibited improved hydrogen-dependent CO2 reduction pathway and had specific dominant microorganisms, such as Trichloromonas, Oscillibacter, Syntrophomonas, and Methanosaeta.
Article
Engineering, Environmental
Meichen Sun, Chao Zhang, Zhijian Shi, Chen Zhang, Shicheng Zhang, Gang Luo
Summary: This study investigated the changes of microbial communities in anaerobic digestion (AD) under different concentrations of oleate. It was found that the addition of hydrochar (HC) promoted the degradation of oleate and methane production. Microbial analysis showed that the relative abundances of Proteobacteria and Firmicutes increased with increasing oleate concentration, and the most abundant bacteria and archaea were Azospira and Methanobacterium, respectively.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Green & Sustainable Science & Technology
Nunthaphan Vikromvarasiri, Mitsuhiko Koyama, Winarto Kurniawan, Nipon Pisutpaisal, Kiyohiko Nakasaki
Summary: The study found that intermittent substrate feeding can reduce the effects of intermediate volatile fatty acids, especially propionic acid and improve methane production. The microbial community changes suggested that Trichococcus is the key bacterium in glycerol degradation, while Delftia and Desulfuromonas may compete with methanogens. This study highlights the importance of microbial communities in methane production from glycerol.
Article
Engineering, Environmental
Xiaoguang Liu, Qian Wang, Yuanzhi Tang, Spyros G. Pavlostathis
Summary: The study evaluated the impact of hydrothermal pretreatment (HTP) on anaerobic digestion (AD) of sewage sludge at different temperatures. HTP increased organic matter destruction and methane production, but high temperature HTP led to increased propionate levels and lower methane production. The bacterial communities in the digesters were significantly affected by HTP, while the archaeal communities showed minor changes. The highest net energy gain was observed in the control group, and a heat recovery greater than 85% is needed to achieve a similar net energy gain with HTP.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Agricultural Engineering
Han Wang, Xiaoxiao Zheng, Qun Yan, Guangsheng Zhang, Jung Rae Kim
Summary: The electric field intensity plays a significant role in the effectiveness of bioelectrochemical systems (BES) in alleviating ammonia inhibition, with low voltages improving ammonia removal and methane production, while high voltages leading to a significant decrease in methane production. Hydrogenotrophic methanogens show more resistance to high voltages compared to aceticlastic methanogens, and certain bacteria are vulnerable to external electric field intensity. Abundance changes in metabolic pathways demonstrate that the degradation of carbohydrates, lipids, and proteins in all steps of the anaerobic digestion process can be affected by different applied voltages.
BIORESOURCE TECHNOLOGY
(2021)
Article
Engineering, Environmental
Luqing Qi, Xuna Liu, Yanjun Miao, Efthalia Chatzisymeon, Ping Yang, Hongyan Lu, Lina Pang
Summary: The study found that zinc oxide nanoparticles have a significant impact on anaerobic digestion of cattle manure, promoting the accumulation of organic matter but inhibiting subsequent fermentation and methane production. This inhibitory effect increases with the concentration of zinc oxide nanoparticles, leading to a significant decline in fermentation and methane production.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Green & Sustainable Science & Technology
Thomas Lendormi, Kais Jaziri, Fabrice Beline, Chrystelle Bureau, Cedric Midoux, Suzelle Barrington, Patrick Dabert, Sophie Le Roux
Summary: For small-scale farms, the development of rustic and cheap psychrophilic anaerobic digestion systems is an opportunity to treat manure, mitigate emissions, and promote renewable energy production. In this study, the most efficient inoculum for the start-up of psychrophilic anaerobic digestion of swine slurry at 13 ℃ was found to be swine manure stored for 2 months. After acclimation, the reactor produced a high methane yield, with a production efficiency of 55-68% at 13 ℃ compared to 37 ℃.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Geosciences, Multidisciplinary
Haihai Hou, Longyi Shao, Yue Tang, Zhen Li, Sheng Zhao, Minglei Yao, Xuetian Wang, Jiaqiang Zhang
Summary: This study focuses on characterizing the pore structure of coal reservoirs in northern China. By utilizing various techniques such as proximate analysis, coal petrology, and nuclear magnetic resonance, the study examines the coal samples from three coalbed methane exploration areas. The results show that coalification and igneous intrusion greatly influence the coal properties, including vitrinite content, pore connectivity, and methane adsorption capacity. The study also reveals the complex variation in pore size distribution and highlights the best target maturity level for CBM exploitation.
Article
Computer Science, Hardware & Architecture
Xu Jiang, Zewei Chen, Maolin Yang, Nan Guan, Yue Tang, Yi Wang
Summary: This paper studies the analysis of parallel real-time tasks using spin locks to protect shared resources and proposes a scalable blocking analysis technique based on linear programming. The method is evaluated through comprehensive experiments and compared with other state-of-the-art approaches for scheduling real-time parallel tasks using semaphores and spin locks.
IEEE TRANSACTIONS ON COMPUTERS
(2023)
Article
Computer Science, Theory & Methods
Xu Jiang, Haochun Liang, Nan Guan, Yue Tang, Lei Qiao, Yi Wang
Summary: This study investigates the scheduling of real-time parallel tasks on virtual multiprocessors. Through comprehensive performance evaluation, the proposed approach consistently outperforms existing methods under a wide range of parameter settings.
IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS
(2023)
Article
Agriculture, Multidisciplinary
Zhiyu Liu, Songyi Lin, Wenwen Liu, Yoshimasa Nakamura, Yue Tang
Summary: In this study, fish skin gelatin (FSG) and luteolin (LUT) were used as composite emulsifiers, and benzyl isothiocyanate (BITC) was used as a model nutrient for delivery. The FSG-LUT emulsion showed higher stability and embedding rate compared to the FSG emulsion. It also demonstrated resistance to oral and gastric digestion, resulting in higher retention and bioaccessibility of BITC. Furthermore, the ex vivo study in rat intestine showed that the FSG-LUT emulsion facilitated controlled release and absorption of BITC in a specific position.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2023)
Article
Food Science & Technology
Ziyuan Xia, Shipeng Wang, Yao Chen, Min Gou, Zhaoyong Sun, Songtao Wang, Suyi Zhang, Yueqin Tang
Summary: This study investigated the microbial consortia and flavor metabolites in Chinese liquor fermentation using a new-type sealing pit and a traditional sealing pit. The results showed that the new-type sealing method resulted in higher concentrations of flavor metabolites and a more stable microbial community. These findings are important for optimizing the fermentation process.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Analytical
Jianwen Ding, Yue Tang, Ronghui Chang, Yu Li, Limin Zhang, Feng Yan
Summary: In this paper, a novel ECG electrode structure is designed to collect ECG data and reference data simultaneously. Combined with the adaptive filter, it effectively suppresses the motion artifact in the ECG acquisition.
Article
Geosciences, Multidisciplinary
Pei-yuan Hu, Qing-guo Zhai, Peter A. Cawood, Roberto F. Weinberg, Guo-chun Zhao, Yue Tang, Yi-ming Liu
Summary: Paleogeographic reconstruction of Precambrian terranes reworked by Phanerozoic orogens, such as the Tibetan Plateau, reveals complex lithotectonic relations due to intracrustal reworking. Global and regional detrital zircon rare earth element (REE) databases show trends in LREE/HREE and Eu/Eu* that record the crustal evolution of the source and provide a new approach for paleogeographic reconstructions. By analyzing sedimentary and igneous rocks in the Lhasa terrane and detrital zircon samples from the northern margin of Gondwana, it is demonstrated that the Lhasa terrane had an African affinity in the Rodinia-Gondwana supercontinent cycles (ca. 1.4-0.4 Ga).
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Engineering, Electrical & Electronic
Xuan Ding, Ying Xu, Tangyao Feng, Zili Yang, Guilun Chen, Li Ren, Jing Shi, Difan Zhou, Jingdong Li, Yuejin Tang
Summary: Superconducting power devices based on high-temperature superconducting wires have many advantages and their development has been accelerated by successful prototypes and testing on the power grid. However, the reliability of these devices under overcurrent has not been supported by research, which hinders their large-scale promotion. This article analyzes the critical current degradation and life distribution characteristics of YBCO tapes under overcurrent, and proposes prediction models for their remaining useful life based on data-driven methods.
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
(2023)
Article
Business
Shu Guo, Xuting Sun, Hugo K. S. Lam
Summary: This article studies the information disclosure games over the environmental efforts in fashion supply chains and discusses how the application of blockchain technology influences these games.
IEEE TRANSACTIONS ON ENGINEERING MANAGEMENT
(2023)
Article
Geology
Wei Wang, Qing-Guo Zhai, Pei-Yuan Hu, Yue Tang, Zhi-Cai Zhu
Summary: The studied Early Cretaceous andesitic rocks in the Nyima area, north-central Tibet, were formed by partial melting of Bangong-Nujiang oceanic lithosphere with the addition of enriched sedimentary materials.
INTERNATIONAL GEOLOGY REVIEW
(2023)
Article
Oncology
Tianzhuo Wang, Huiying Guo, Lei Zhang, Miao Yu, Qianchen Li, Jing Zhang, Yan Tang, Hongquan Zhang, Jun Zhan
Summary: FRMD6, a member of the 4.1 ezrin-radixin-moesin domain-containing protein family, is overexpressed in lung cancer tissues and is associated with poor outcomes in patients with lung squamous cell carcinoma and lung adenocarcinoma. FRMD6 promotes cell migration, proliferation, and tumor formation in lung cancer by interacting with and enhancing the mTOR signaling pathway. Knocking out FRMD6 inhibits the activation of the mTOR signaling pathway in mouse models.
FRONTIERS OF MEDICINE
(2023)
Article
Food Science & Technology
Guang-yao Zhang, Cong Sun, Jing-ru Song, Wei-yi Jin, Yue Tang, Da-yong Zhou, Liang Song
Summary: Glycated WPI-stachyose conjugates were prepared and showed increased inhibition of α-amylase activity and delayed glucose dialysis. These conjugates also exhibited reduced digestion by pepsin and trypsin compared to unconjugated WPI, and a 70% lower hydrolysis rate of stachyose. These findings suggest the potential use of glycated conjugates as functional ingredients with sustained-release effect in the gastrointestinal tract.
Article
Automation & Control Systems
Yue Tang, Feng Chai, Ying Xie, William Cai
Summary: This article proposes a modular permanent magnet in-wheel motor design for electric vehicles, aiming to achieve high reliability and fault-tolerant capability. The design includes a slot-pole combination with high fault-tolerant performance. The electromagnetic characteristics and torque performance of the motor are investigated, and a prototype is produced and verified through experiments.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Agricultural Engineering
Jin-Ting He, Nan Yao, Zhao-Yong Sun, Feng Li, He-Qing Cai, Li-Feng Jin, Yue-Qin Tang
Summary: Tobacco processing waste can be used as feedstock for biogas production through anaerobic digestion. This study examined the thermophilic anaerobic digestion of flue-cured tobacco leaf waste and evaluated the effects of biochar on biogas production. The addition of biochar enhanced methane production by 1.12-1.20 fold at different organic loads. The presence of biochar shortened the lag period and increased the methane production rate. Specific bacterial and methanogenic genera played a crucial role in the digestion process. These findings provide valuable insights for the treatment of tobacco waste.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Engineering, Mechanical
Jun Ma, Chunyang Yin, Zhonghua Zhou, Shiyou Chen
Summary: Various design methods were adopted to reduce energy consumption and improve service stability and security of the cutterhead, including lightweight design, modal optimization, and life prediction. A multi-disciplinary design optimization methodology was used to determine the design parameters for each discipline, and a Kriging model was employed to approximate the relationship between mode frequency, fatigue life, and design parameters. A collaborative optimization approach was utilized to establish system-level and subsystem-level optimization models, and a genetic algorithm was used for iterative optimization to achieve overall improvement.
JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY
(2023)
