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Genomic basis of evolutionary adaptation in a warm-blooded fish

The Innovation 2022年第1期3卷 22-30页

作者： Xin Wang Meng Qu Yali Liu Ralf F.Schneider Yue Song Zelin Chen Hao Zhang Yanhong Zhang Haiyan Yu Suyu Zhang Dongxu Li Geng Qin Shaobo Ma Jia Zhong Jianping Yin Shuaishuai Liu Guangyi Fan Axel Meyer Dazhi Wang Qiang Lin CAS Key Laboratory of Tropical Marine Bio-resources and Ecology South China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou 510301China Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou) Guangzhou 511458China Marine Evolutionary Ecology GEOMAR Helmholtz Centre for Ocean Research Kiel24105 KielGermany BGI-Qingdao Qingdao 266555China State Key Laboratory of Marine Environmental Science/College of the Environment and Ecology Xiamen UniversityXiamen 361102China BGI-Shenzhen Shenzhen 518083China Department of Biology University of KonstanzKonstanz 78464Germany University of the Chinese Academy of Sciences Beijing 100101China Laboratory for Marine Fisheries Science and Food Production Processes Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China

Few fishes have evolved elevated body temperatures compared with ambient temperatures,and only in opah(Lampris spp)is the entire body *** understand the molecular basis of endothermy,we analyzed the opah genome and identified 23 genes with convergent amino acid substitutions across fish,birds,and mammals,including slc8b1,which encodes the mitochondrial Na+/Ca2+exchanger and is essential for heart function andmetabolic heat *** endothermic fishes,44 convergent genes with suggestive metabolic functions were identified,such as glrx3,encoding a crucial protein for hemoglobin *** genes involved in the production and retention of metabolic heat were also found to be under positive *** of opah’s unique inner-heat-producing pectoral muscle layer(PMI),an evolutionary key innovation,revealed that many proteins were co-opted from dorsal swimming muscles for thermogenesis and oxidative ***,the opah genome provides valuable resources and opportunities to uncover the genetic basis of thermal adaptations in fish.

关键词： evolutionary fish convergent

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Ways to assess hydrogen production via life cycle analysis

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Science of the Total environment 2025年 977卷 179355页

作者： Chen, Yang Guo, Wenshan Ngo, Huu Hao Chen, Zhuo Wei, Chunhai Bui, Xuan Thanh Van Tung, Tra Zhang, Huiying Centre for Technology in Water and Wastewater School of Civil and Environmental Engineering University of Technology Sydney SydneyNSW2007 Australia College of Life Sciences Fujian Agriculture and Forestry University Fuzhou350002 China Environmental Simulation and Pollution Control State Key Joint Laboratory State Environmental Protection Key Laboratory of Microorganism Application and Risk Control School of Environment Tsinghua University Beijing100084 China School of Civil Engineering Guangzhou University Guangzhou510006 China Ho Chi Minh City700000 Viet Nam Institute of Applied Technology and Sustainable Development Nguyen Tat Thanh University Ho Chi Minh70000 Viet Nam

As global energy demand increases and reliance on fossil fuels becomes unsustainable, hydrogen presents a promising clean energy alternative due to its high energy density and potential for significant CO2 emission reductions. However, current hydrogen production methods largely depend on fossil fuels, contributing to considerable CO2 emissions and underscoring the need to transition to renewable energy sources and improved production technologies. Life Cycle Analysis (LCA) is essential for evaluating and optimizing hydrogen production by assessing environmental impacts such as Global Warming Potential (GWP), energy consumption, toxicity, and water usage. The key findings indicate that energy sources and feedstocks heavily influence the environmental impacts of hydrogen production. Hydrogen production from renewable energy sources, particularly wind, solar, and hydropower, demonstrates significantly lower environmental impacts than grid electricity and fossil fuel-based methods. Conversely, hydrogen production from grid electricity primarily derived from fossil fuels shows a high GWP. Furthermore, challenges related to data accuracy, economic analysis integration, and measuring mixed gases are discussed. Future research should focus on improving data accuracy, assessing the impact of technological advancements, and exploring new hydrogen production methods. Harmonizing assessment methodologies across different production pathways and standardizing functional units, such as "1 kg of hydrogen produced, " are critical for enabling transparent and consistent sustainability evaluations. Techniques such as stochastic modelling and Monte Carlo simulations can improve uncertainty management and enhance the reliability of LCA results. © 2025 The Authors

关键词： Clean energy

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Adsorption of Pfoa on Aged Microplastics (Mps) Treated with Uv Irradiation and Persulfate Oxidation

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SSRN 2023年

作者： Ning, Zigong Yang, Ying Ren, Nanqi Zhao, Zilong Zhou, Shuang Zhang, Wei Lu, Lu State Key Laboratory of Urban Water Resource and Environment School of Civil and Environmental Engineering Harbin Institute of Technology Shenzhen518055 China School of Civil and Environmental Engineering Harbin Institute of Technology Shenzhen518055 China Shenzhen Honglue Research Institute of Innovation Management Shenzhen518119 China

The presence of perfluoroalkyl substances (PFAS) in the environment poses a significant threat to ecological safety and environmental health. Widespread microplastics (MPs) have been recognized as vectors for emerging contaminants due to human activities. However, the adsorption behaviors of PFAS on MPs, especially on aged MPs, have not been extensively investigated. This study aimed to investigate the adsorption behaviors of PFOA on four aged MPs (PVC, PS, PE, PET) treated with UV irradiation and persulfate oxidation under salinity and dissolve organic matter (DOM) condition. The Carbonyl Index (CI) values of MPs increase after the aged treatment, indicating the production of oxygen-containing groups. While, the water contact angle (WCA) values show that the aged MPs remain the similar surface hydrophobicity as the pristine ones. The PFOA adsorption on aged MPs are impacted by the co-existence of Na+ ions and DOM. As PFOA adsorption onto aged MPs is mainly controlled by hydrophobic interaction, the electrostatic interaction also contributing, there is no significant change in PFOA adsorption behavior between the pristine and aged MPs. While these findings provide insight into PFAS adsorption on aged MPs, further research is necessary to account for the complexity of the real environment. © 2023, The Authors. All rights reserved.

关键词： Adsorption

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engineering Pd Atom Membrane-Nanoparticle on Carbon Nitride for Efficient Photocatalytic Water Disinfection Via in Situ Generation and Activation of H2o2

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SSRN 2024年

作者： Li, Minghui Jiang, Jian Zhu, Zhangqiang Fang, Caixia Liu, Chang Zhu, Hongjie Chen, Yan College of Ecology and Environment Anhui Normal University 189 South of Jiuhua Road Anhui Wuhu241002 China Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology School of Chemistry and Chemical Engineering Liaocheng University Liaocheng252059 China Department of Stomatology Nanjing First Hospital Nanjing Medical University Nanjing210000 China State Key Laboratory of Pollution Control and Resource Reuse School of the Environment Nanjing University Jiangsu210023 China

Hydrogen peroxide (H2O2) used as water disinfectant has advantages of being green and free of disinfection byproducts, but remains challenging in production and performance. Herein, a Pd atom membrane-nanoparticle supported on carbon nitride nanotubes (PdAM-NP/CNNT) photocatalyst is prepared to enhance the visible-light-driven disinfection performance via in-situ generation and activation of H2O2. Our results indicate that complete inactivation of 9.4 log10 (cfu/mL) of Escherichia coli (E. coli) is achieved within 5 h in PdAM-NP/CNNT/visible light system, whereas only 2.4 log10 (cfu/mL) reduction is obtained in the same exogenous H2O2 condition. The reduction efficiency of PdAM-NP/CNNT (9.4 log10 (cfu/mL)) within 5 h is significantly higher than that of PdNP/CNNT (6.2 log10 (cfu/mL)) and CNNT (2.7 log10 (cfu/mL)). Therefore, a synergistic mechanism is proposed, in which the generation and activation of H2O2 by Pd atom membrane and nanoparticle are the major processes. The PdAM-NP structure can not only efficiently capture O2 molecules for oxygen reduction to H2O2, but facilitate robust H2O2 and O2 molecules activation. In disinfection process, oxidative species (h+, ·O2-, 1O2) can be produced, which cause the damage of outer membrane, and followed by cell death. Moreover, PdAM-NP/CNNT exhibits a broad-spectrum availability, anti-interference in natural waters and an excellent stability after four consecutive reaction cycles. Overall, this study provides the rational design of high-performance photocatalyst and highlights the significant potential of the PdAM-NP/CNNT photocatalysis system as an alternative green disinfection technology for purifying microbial-contaminated water. © 2024, The Authors. All rights reserved.

关键词： Escherichia coli

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An Efficient Zn/Fe-Nc Catalyst Derived from Bimetallic Zeolitic Imidazole Frameworks for Oxygen Reduction Reaction in Air-Cathode Microbial Fuel Cell

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SSRN 2023年

作者： Wang, Qianwu Lu, Jingzhao Liu, Songlin Liang, Bolong Yu, Boqu School of Eco-Environment Hebei Key Laboratory of Close-to-Nature Restoration Technology of Wetlands Hebei University Baoding071002 China College of Environmental Science and Engineering Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria Tianjin Key Laboratory of Environmental Remediation and Pollution Control Nankai University Tianjin300350 China College of Science and Technology Hebei Agricultural University Cangzhou061100 China State Key Laboratory of Pollution Control and Resource Reuse Nanjing University Nanjing210093 China

The development of carbon-based catalysts to substitute Pt-based catalysts for the oxygen reduction reaction is of great importance to promote their practical application in energy conversion. Herein, we prepare Zn/Fe and nitrogen-codoped porous carbon (Zn/Fe-NC-x) as a cathode catalyst via a facile one-step pyrolysis predesigned bimetallic zeolitic imidazole framework. Systematic electrochemical studies demonstrate that the synthesized Zn/Fe-NC-0.5 possesses higher electrocatalytic activity towards oxygen reduction reaction. In particular, Zn/Fe-NC-0.5 has a smaller charge transfer resistance, larger exchange current density, and much higher open circuit potential and mainly proceededs via an efficient four-electron pathway. The microbial fuel cell equipped with the synthesized catalyst exhibits the highest maximum power density of 1954 ± 20 mW m-2. In addition, the effects of the iron doping content on the performance of the oxygen reduction reaction and maximum power density are evaluated: a moderate Fe doping content plays a crucial role in improving the catalytic activity, and the synergistic effect of Fe and N codoping promotes the cathode performance. In brief, Zn/Fe-NC, with advantages of facile synthesis, environmental friendliness and excellent electrochemical activity is a promising Pt-alternative catalyst for air-cathode microbial fuel cells in the future. © 2023, The Authors. All rights reserved.

关键词： Carbon

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Study on a 48-Slot Interior Permanent Magnet Synchronous Motor in the Aircraft Drive System

Study on a 48-Slot Interior Permanent Magnet Synchronous Mot...

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Power and Electrical technology Conference (APET), Asia

作者： Yuhang Xie Fei Xiong Rui Yan Yu Xiang Kai Yang Weican Yan School of Reliability and Systems Engineering Beijing University of Aeronautics and Astronautics Beijing China State Key Laboratory of Advanced Electromagnetic Technology Huazhong University of Science and Technology Wuhan China Marketing Department SG Micro Corp Beijing China Wolong Electric Group Co. LTD Shangyu China

The torque performance of the interior permanent magnet synchronous motor (IPMSM) has been widely concerned and studied for many years. This article focuses on the structure design and optimization of the IPMSM in the aircraft drive system, and aiming to improve the torque density and reduce the torque ripple. Firstly, the original structure of the IPMSM is given. And then, a fractional slot winding and ∇-type rotor magnetic pole topology are proposed as the optimized IPMSM structure in this article. In addition, the comparison of the original and optimized structure is studied by the simulation. Finally, the performance of an optimized prototype is analyzed by experimental test, and the validity of the design optimization method for proposed IPMSM structure is verified.

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Associations between prenatal exposure to metal mixtures and infant reproductive hormones during mini-puberty

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Science of the Total environment 2024年 955卷 177192页

作者： Yu, Ling Liu, Jiangtao Li, Ying Li, Shulan Cao, Shuting Li, Fasheng Li, Yuanyuan Liu, Hongxiu He, Zhenyu Xu, Shunqing Xia, Wei Key Laboratory of Environment and Health Ministry of Education & Ministry of Environmental Protection State Key Laboratory of Environmental Health School of Public Health Tong ji Medical College Huazhong University of Science and Technology Hubei Wuhan China Environmental Science and Engineering Hainan University Hainan Haikou China Shenzhen Institute of Advanced Technology The Chinese Academy of Sciences Shenzhen China Institute of Environmental Health Wuhan Centers for Disease Prevention &Control Hubei Wuhan430015 China State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental Sciences Beijing100012 China

Background: The reproductive hormone homeostasis is crucial for child development. Exposure to metals during pregnancy may have adverse effects on offspring health. However, the association between prenatal exposure to metals and infant reproductive hormone levels remains unknown. Methods: This study involved 812 mother-infant pairs from Wuhan, China, assessing prenatal exposure to 13 metals in maternal plasma during early pregnancy and measuring five reproductive hormones in urine samples of one-month-old infants. Generalized linear models were employed to investigate the associations between individual metal exposures and urinary hormone levels in infants. Additionally, weighted quantile sum (WQS) regression and quantile g-computation were employed to evaluate the impact of metal mixtures. Results: Most of the detected metals in maternal plasma were associated with lower levels of follicle-stimulating hormone (FSH) and luteinizing hormone (LH) in infants. Each interquartile range (IQR) increase in manganese (Mn), barium (Ba), thallium (Tl), vanadium (V), cobalt (Co), nickel (Ni), and lead (Pb) was significantly associated with an approximately 9.87 % to 38.24 % decrease in FSH or LH. WQS and quantile g-computation models confirmed a significant association between prenatal metal mixtures and reduced FSH and LH in male infants, and WQS indicated a significant association between metal mixtures and decreased FSH in female infants. Conclusions: Maternal exposure to mixed metals during early pregnancy was associated with lower levels of FSH and LH in infants, suggesting that prenatal exposure to metals may disrupt the balance of infant reproductive hormones. Further research is warranted to confirm these associations and explore the underlying mechanisms. © 2024 Elsevier B.V.

关键词： Birth cohort Heavy metal Mixture exposure Reproductive hormones

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Study on the Influences of Hydraulic Fracturing in Steeply Inclined Coal Seam on the Fracture Initiation Pressure of Top Coal

SSRN

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SSRN 2023年

作者： Wang, Enmao Wang, Gang Huang, Qiming Liu, Qinhuai Zhang, Yanming Shandong University of Science and Technology Mine Disaster Prevention and Control-Ministry of State Key Laboratory Breeding Base Qingdao266590 China Shandong University of Science and Technology College of Safety and Environment Engineering Qingdao266590 China Shandong University of Science and Technology College of Energy and Mining Engineering Qingdao266590 China

The geological structure and stress distribution of a coal body directly determine its hydraulic fracture initiation pressure that is one of the key factors affecting the disaster prevention by hydraulic fracturing. Based on the geological structure characteristics of steeply inclined coal seam and the stress distribution characteristics, the influences of hydraulic fracturing on the top coal of steeply inclined coal seam were explored by a series of hydraulic fracturing experiments with varied bedding directions, triaxial stresses, and water injection rates and the presence/absence of temporary plugging balls in this study. The results show that the vertical stress is the minimum principal stress, and the horizontal stress is the maximum principal stress. The water injection pressure first maintains constant at 0 MPa, gradually increases, and then drops rapidly. The fracture initiation pressure shows no obvious relationship with the horizontal stress if the bedding direction is parallel to the water injection direction, but the node pressure increases with the increase of horizontal stress. If the bedding direction is perpendicular to the water injection direction, both fracture initiation pressure and node pressure gradually decrease with the increase of horizontal stress. The presence of temporary plugging balls increases the fracture initiation pressure if the bedding direction is same as the water injection direction, but reduces the secondary fracture initiation pressure if the directions are perpendicular. The fracture initiation pressures of steeply inclined coal seams are in the range of 10 MPa-21 MPa, much higher than those of horizontal coal seams. The results of this study help to understand the hydraulic fracture initiation pressure of steeply inclined coal seam, which is of great significance to the disaster control by hydraulic fracturing during the mining of steeply inclined coal seam. © 2023, The Authors. All rights reserved.

关键词： Hydraulic fracturing

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Assessment of the In-Situ Electrogenerated Chloramines Damaging Polyamide Nf Membrane During Secondary Wastewater Treatment

SSRN

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SSRN 2023年

作者： Du, Xing Peng, Zhitian Lai, Caijing Xiao, Mengyao Yang, Yang Li, Xianhui School of Civil and Transportation Engineering Guangdong University of Technology Guangzhou510006 China Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education School of Ecology Environment and Resources Guangdong University of Technology Guangzhou510006 China Guangzhou511458 China Guangdong Provincial Key Laboratory of Water Quality Improvement and Ecological Restoration for Watersheds Institute of Environmental and Ecological Engineering Guangdong University of Technology Guangzhou510006 China

Nanofiltration (NF) membrane is susceptible to the chlorine damage in the treatment of secondary wastewater, thus it is critical to examine the structure changes of polyamide membrane in the environment exposed to chlorine. In this work, electro-oxidation (EO) process was utilized to pretreat the chlorine-containing secondary wastewater, and then the potential damage to polyamide membranes during the EO-NF process was assessed by the performance of NF90 nanofiltration membrane after exposure to the EO effluent. We observed a 90% reduction in the retention of Ca2+ and Mg2+ by NF membrane under high concentration of chloramine (i.e., 20 mg/L), which was attributed to the formation of N-chloramides resulting from the combination of chloramine with the lone electron pair of the polyamide. Compared with the pristine membrane directly exposed to the chloramine-containing EO effluent, the NF membrane deposited with a biofouling layer did not exhibit any changes of chemical structure and compositions, which could be explained by the layer blocking the chlorination of polyamide. Therefore, the biofouling layer formed by the deposition and development of microorganism on the membrane surface can prolong the lifetime of the polyamide membrane during the treatment of municipal wastewater in the EO-NF system. © 2023, The Authors. All rights reserved.

关键词： Amines

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Density functional theory(DFT) studies of vanadium-titanium based selective catalytic reduction(SCR) catalysts

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Journal of environmental Sciences 2020年第4期32卷 119-137页

作者： Ziwei Zhao Erwei Li Yu Qin Xiaolong Liu Yang Zou Heng Wu Tingyu Zhu National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China State Key Laboratory of Solid Waste Reuse for Building Materials Beijing Building Materials Academy of Science ResearchBeijing 100041China Center for Excellence in Regional Atmospheric Environment Institute of Urban EnvironmentChinese Academy of SciencesXiamen 361021China

Based on density functional theory(DFT)and basic structure models,the chemical reactions on the surface of vanadium-titanium based selective catalytic reduction(SCR)denitrification catalysts were *** structural models(non-periodic and periodic structural models)are the basis of density functional calculations.A periodic structure model was more appropriate to represent the catalyst surface,and its theoretical calculation results were more comparable with the experimental results than a nonperiodic *** is generally believed that the SCR mechanism where NH3 and NO react to produce N2 and H2 O follows an Eley-Rideal type ***2 NO was found to be an important intermediate in the SCR reaction,with multiple production ***,the effects of H2 O,SO2 and metal on SCR catalysts were also summarized.

关键词： Selective catalytic reduction(SCR) Structure model Vanadium-titanium based catalyst Density functional theory(DFT) Adsorption

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