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Exposure of juvenile Chinook salmon to effluent from a large urban wastewater treatment *** *** responses

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Aquaculture and Fisheries 2024年第3期9卷 355-366页

作者： Suzanne C.Ball James P.Meador C.Andrew James Jenifer K.McIntyre Washington State University School of the EnvironmentPuyallup Research and Extension Center2606 W Pioneer AvePuyallupWA98371USA dept.of environmental and Occupational Health sci.nces School of Public Health4225 Roosevelt Way NESuite 100SeattleWA98105-6099USA University of Washington Tacoma Center for Urban Waters326 East D StreetTacomaWA98421-1801USA

Wastewater treatment plants release complex mixtures of chemicals into the aquatic environment as wastewater effluent(WWE);however,the effects of these mixtures are still poorly *** salmon(Oncorhynchus tshawytscha)are a culturally important species in the Pacific Northwest and are a vital food resource for southern resident killer whales(Orcinus orca)that are listed as‘critically endangered’under the *** Species Act(ESA).Chinook populations have declined drastically in this region and have failed to show significant recovery despite regional-to-federal efforts,resulting in many populations being listed as threatened under the *** source of stress to juvenile Chinook is chemical pollution from WWE during their outmigration along river corridors and residency in *** this study,we investigated effects of WWE on juvenile Chinook health in a ten-day exposure to dilutions of WWE from 0.1%to 20%.At the end of the exposure,we measured endpoints associated with endocrine disruption,brain function,osmoregulation,stress,and *** to WWE significantly(α=0.1 for all analyses)induced vitellogenesis,indicating endocrine system *** saw significant reductions in plasma glucose,an indication of stress,and brain Na+/K+-ATPase(NKA)activity,an enzyme essential for neuronal ***,metabolism was affected as evidenced by altered total protein,cholesterol,and albumin in plasma,a drastic decrease in whole body lipid content,and a significant increase in visible liver *** compared contaminant concentrations in exposure water with effects concentrations from the literature for chemicals known to induce vitellogenin or inhibit brain *** most contaminants,concentrations in exposure waters were several orders of magnitude below effects concentrations in the *** exception was estrogenic hormones,which were detected at similar concentrations in this study compared to concentrations in other studies tha

关键词： Wastewater effluent Chinook salmon Toxicity Sodium potassium ATPase Vitellogenin Physiology Metabolism Glucose

Exposure of juvenile Chinook salmon to effluent from a large urban wastewater treatment *** *** profiling

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Aquaculture and Fisheries 2024年第3期9卷 367-377页

作者： James P.Meador Suzanne C.Ball C.Andrew James Jenifer K.McIntyre dept.of environmental and Occupational Health sci.nces School of Public Health4225 Roosevelt Way NESuite 100SeattleWA98105-6099USA Washington State University School of the EnvironmentPuyallup Research and Extension Center2606 W Pioneer AvePuyallupWA98371USA University of Washington Tacoma Center for Urban Waters326 East D StreetTacomaWA98421-1801USA

Targeted metabolomic analysis was conducted on juvenile Chinook salmon exposed for 10 days to wastewater effluent(WWE)from a large urban treatment *** included five dilutions of WWE(20%,5.3%,1.4%,0.4%,and 0.1%)and a control with 7 replicates per *** was extracted from fish and analyzed via liquid chromatography–mass spectrometry(LC-MS)for 361 endogenous metabolites,of which 185 were ***-versus-treatment comparisons identified several metabolites that were associated with altered biochemical pathways observed for all treatments,including several that are important for energy generation and *** altered pathways are crucial for fish health and may be an early indicator of potential adverse effects on growth,reproduction,behavior,and immune *** ocean-type Chinook salmon spend several days to weeks in the nearshore estuary where they may encounter high concentrations of WWE *** are exposed to a wide range of potent pharmaceuticals,personal care products,and industrial compounds from WWE that have the potential to affect physiological homeostasis and disrupt their normal life cycle.

关键词： Wastewater effluent Metabolomics Physiology Chinook salmon Pharmaceuticals Metabolic pathways Estuary

Microbial Growth and Decay: A Commented Review of the Model

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Advances in Microbiology 2024年第1期14卷 1-10页

作者： Alberto Schiraldi Formerly at dept. Food Environ. Nutr. sci. (DeFENS) University of Milan (Italy) Milan Italy

The paper reviews previous publications and reports some comments about a semi empirical model of the growth and decay process of a planktonic microbial culture. After summarizing and reshaping some fundamental mathematical expressions, the paper highlights the reasons for the choice of a suitable time origin that makes the parameters of the model self-consistent. Besides the potential applications to predictive microbiology studies and to effects of bactericidal drugs, the model allows a suitable proxy of the fitness of the microbial culture, which can be of interest for the studies on the evolution across some thousand generations of a Long Term Evolution Experiment.

关键词： Microbial Cultures Model Time Scale Growth and Decay Evolution

The meliorization process of urban green spaces: Integrating landsense creation for sustainable development

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Journal of Geographical sci.nces 2024年第9期34卷 1822-1840页

作者： GONG Gaofeng GUO Qinghai QIU Botian TANG Lina MAO Qizheng HE Zhichao School of Civil Engineering and Architecture Zhejiang Sci-Tech UniversityHangzhou 310018China Zhejiang Academy of Ecological Civilization Zhejiang Sci-Tech UniversityHangzhou 310018China School of Technology Westlake UniversityHangzhou 310018China Institute of Urban environment CASXiamen 361021FujianChina School of Resources and environment Henan University of Economics and LawZhengzhou 450046China School of Architecture and Civil Engineering Xiamen UniversityXiamen 361005FujianChina

Urban green spaces play a crucial role in enhancing the well-being of urban residents and promoting sustainable urban development. However, optimizing the planning and management of urban green spaces to meet residents' diverse needs and preferences poses a considerable challenge. This study addresses this challenge by employing a landsenses ecology approach, integrating residents' perspectives into the planning and design of urban green spaces. Starting from human needs, a conceptual framework for the meliorization model of urban green spaces is constructed, grounded in the principles of landsense creation and incorporating a “design-simulation-management” process. Through this model, the mechanisms driving the meliorization process are explored. This study contributes to improving the meliorization process in landsenses ecology, while expanding the theoretical framework and methodology of landscape ecology. By emphasizing the dynamic interactions between land planning, construction, and residents' experiences, this study provides valuable insights into the dynamic development of urban green spaces, facilitating the implementation of sustainable urban development strategies and practices.

关键词： landsenses ecology ecosystem services digital technology human needs meliorization process

AN IMPROVED CONTACT-IMPACT ALGORITHM FOR EXPLICIT INTEGRATION FEM

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Acta Mechanica Sinica 2002年第6期18卷 649-651页

作者：徐绍忠王乘刘小虎 dept.of Mechanics Huazhong Univ. of Sci. and Tech. Wuhan China 430074

Although the penalty algorithm is simple and direct in concept, it has a defect that the contact forces are badly dependent on the chosen penalty factor. An improved contact-impact algorithm for the explicit integration FEM is proposed in the present paper. Based on the fact that bodies cannot penetrate into each other on the contact faces, a set of equations with the additional unknown contact forces on the slave nodes can be formed in a new system configuration. By solving these equations, the correct contact forces could be obtained without using the penalty factor.

关键词： contact-impact algorithm penalty method contact force

EXTRACTION OF NATURAL FREQUENCY FROM MEASURED LATE-TIME TRANSIENT RESPONSES WITH RATIONAL MINIMAX APPROXIMATION IN FREQUENCY DOMAIN

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EXTRACTION OF NATURAL FREQUENCY FROM MEASURED LATE-TIME TRAN...

Advanced cellulose-based materials toward stabilizing zinc anodes

1998 International Conference on Microwave and Millimeter Wave Technology

作者： Jiao Dan Xu Shanjia Wu Xianliang dept.of Electronic Eng.& Information sci. Univ.of Science & Technology of China dept.of Electronic Eng.& Information sci. Anhui University

ISBN: (纸本)0780343085

＜正＞A simple technique is presented for extracting natural frequencies from measured late-time transient *** method first applies rational mini-max approximation to the Fourier transform of the even extension of a transient response,then obtains natural frequencies directly from the zeros of the denominator polynomial of the optimum rational function. The effectiveness of the method is verified with a synthetic transient response and a measured response of a conducting *** results from the present method for the synthetic tfansient response are compared with those from constrained E-pulse technique （CET） and genetic algorithm technique（GAT）.It indicates that the present method avoids an initial guess,overcomes the tendency to get stuck in local minima and requires much less computer effort than the *** addition,unlike the GAT,it generally guarantees convergence and is insensitive to any parameter.

关键词： transient response convergence of numerical methods minimax techniques poles and zeros radar theory Fourier transforms natural frequency extraction late-time transient responses rational minimax approximation frequency domain Fourier transform denominator polynomial optimum rational function conducting sphere convergence radar target identification

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sci.nce China Chemistry 2024年第5期67卷 1465-1484页

作者： Zhijiang Li Xiang Chen Rui Zhang Taoyi Shen Jianchao Sun Zhongce Hu Lin Li Lanlan Yang Hou-Yong Yu College of Textile sci.nce and Engineering(International Institute of Silk) Zhejiang Sci-Tech UniversityHangzhou 310018China State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Donghua UniversityShanghai 201620China School of environment and Material Engineering Yantai UniversityYantai 264005China Institute for Carbon Neutralization College of Chemistry and Materials EngineeringWenzhou UniversityWenzhou 325035China

Rechargeable aqueous zinc metal batteries(RAZMBs) have received extensive attention for large-scale energy storage systems due to the merits of Zn anodes, including moderate volumetric and gravimetric energy density, low redox potential, abundant reserve, low cost and impressive intrinsic safety. However, Zn anodes suffer from a series of adverse reactions(dendrite growth,hydrogen evolution, and surface passivation) resulting in low Coulombic efficiency, large polarization, and unsatisfied cycling performance, which inevitably hinder the wide application of RAZMBs. To address the above issues, cellulose-based materials are widely used for Zn anode protection because of their unique physical and chemical properties and other advantages such as biocompatibility, non-toxicity, degradability and easy extraction. In order to better understand the current progress in cellulosebased materials for the Zn anode protection, we have classified and summarized the relevant literatures. In this review, we summarize and elaborate the causes of poor reversibility for Zn anodes, including dendrite formation, hydrogen evolution, and surface passivation. Subsequently, the effective strategies(anode interfacial engineering, gel electrolyte optimization, and separator modification) of cellulose-based materials toward stabilizing Zn anodes are overviewed. In the end, the existing challenges and prospects of cellulose-based materials in Zn anode protection are summarized to shed light on future work.

关键词： Zn anode cellulose anode interfacial engineering gel electrolyte optimization separator modification

Co/CoO heterojunction rich in oxygen vacancies introduced by O2 plasma embedded in mesoporous walls of carbon nanoboxes covered with carbon nanotubes for rechargeable zinc-air battery

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Carbon Energy 2024年第7期6卷 14-25页

作者： Leijun Ye Weiheng Chen Zhong-Jie Jiang Zhongqing Jiang Key Laboratory of Optical Field Manipulation of Zhejiang Province Department of PhysicsZhejiang Sci-Tech UniversityHangzhouChina Department of Mechanical Engineering Ningbo University of TechnologyNingboChina Guangzhou Key Laboratory for Surface Chemistry of Energy Materials Guangdong Engineering and Technology Research Center for Surface Chemistry of Energy MaterialsCollege of Environment and EnergySouth China University of TechnologyGuangzhouChina

Herein,Co/CoO heterojunction nanoparticles(NPs)rich in oxygen vacancies embedded in mesoporous walls of nitrogen-doped hollow carbon nanoboxes coupled with nitrogen-doped carbon nanotubes(P-Co/CoOV@NHCNB@NCNT)are well designed through zeolite-imidazole framework(ZIF-67)carbonization,chemical vapor deposition,and O_(2) plasma *** a result,the threedimensional NHCNBs coupled with NCNTs and unique heterojunction with rich oxygen vacancies reduce the charge transport resistance and accelerate the catalytic reaction rate of the P-Co/CoOV@NHCNB@NCNT,and they display exceedingly good electrocatalytic performance for oxygen reduction reaction(ORR,halfwave potential[EORR,1/2=0.855 V *** hydrogen electrode])and oxygen evolution reaction(OER,overpotential(η_(OER,10)=377mV@10mA cm^(−2)),which exceeds that of the commercial Pt/C+RuO_(2) and most of the formerly reported ***,both the aqueous and flexible foldable all-solid-state rechargeable zinc-air batteries(ZABs)assembled with the P-Co/CoOV@NHCNB@NCNT catalyst reveal a large maximum power density and outstanding long-term cycling ***-principles density functional theory calculations show that the formation of heterojunctions and oxygen vacancies enhances conductivity,reduces reaction energy barriers,and accelerates reaction kinetics *** work opens up a new avenue for the facile construction of highly active,structurally stable,and cost-effective bifunctional catalysts for ZABs.

关键词： heterojunction oxygen evolution/reduction reaction oxygen vacancies rechargeable zinc–air battery three‐dimensional nitrogen‐doped hollow carbon nanoboxes

Energetic,bio-oil,biochar,and ash performances of co-pyrolysis-gasification of textile dyeing sludge and Chinese medicine residues in response to K_(2)CO_(3),atmosphere type,blend ratio,and temperature

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Journal of environmental sci.nces 2024年第2期136卷 133-150页

作者： Gang Zhang Zhiyun Chen Tao Chen Shaojun Jiang Fatih Evrendilek Shengzheng Huang Xiaojie Tang Ziyi Ding Yao He Wuming Xie Jingyong Liu Engineering Research Center of None-food Biomass Efficient Pyrolysis and Utilization Technology of Guangdong Higher Education Institutes Dongguan University of TechnologyDongguan 523808China School of environmental sci.nce and Engineering Guangdong University of TechnologyGuangzhou 510006China School of environment The Environmental Research InstituteMOE Key Laboratory of Theoretical Chemistry of EnvironmentSouth China Normal UniversityGuangzhou 510006China Department of environmental Engineering Bolu Abant Izzet Baysal UniversityBolu 14052Turkey

Hazardous waste stream needs to be managed so as not to exceed stock-and rate-limited properties of its recipient *** co-pyrolysis of Chinese medicine residue(CMR)and textile dyeing sludge(TDS)and its bio-oil,biochar,and ash quality and quantity were characterized as a function of the immersion of K_(2)CO_(3),atmosphere type,blend ratio,and *** to the mono-pyrolysis of TDS,its co-pyrolysis performance with CMR(the comprehensive performance index(CPI))significantly improved by 33.9%in the N_(2)atmosphere and 33.2%in the CO_(2)*** impregnation catalyzed the co-pyrolysis at 370℃,reduced its activation energy by 77.3 kJ/mol in the N_(2)atmosphere and 134.6 kJ/mol in the CO_(2)atmosphere,and enriched the degree of coke gasification by 44.25%in the CO_(2)*** impregnation increased the decomposition rate of the co-pyrolysis by weakening the bond energy of fatty side chains and bridge bonds,its catalytic and secondary products,and its bio-oil yield by 66.19%.Its bio-oils mainly contained olefins,aromatic structural substances,and *** immersion of K_(2)CO_(3)improved the aromaticity of the copyrolytic biochars and reduced the contact between K and Si which made it convenient for Mg to react with SiO_(2)to form *** co-pyrolytic biochar surfaces mainly included-OH,-CH_(2),C=C,and *** main phases in the co-pyrolytic ash included Ca_(5)(PO_(4))_(3)(OH),Al_(2)O_(3),and magnesium-silicate.

关键词： Chemical impregnation Catalytic pyrolysis Chinese medicine residue Textile dyeing sludge Co-pyrolysis