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Interannual succession of phytoplankton community in a canyon-shaped drinking water reservoir during the initial impoundment period:Taxonomic versus functional groups

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Journal of Environmental Sciences 2025年第5期151卷 454-468页

作者： Yi hou Ya Cheng Kai Li Meng Yang Kangzhe Huang Gang Ji Ruikang Xue Tinglin Huang Gang Wen Shaanxi Provincial Field Scientific Observation and Research Station of Water Quality in Qinling Mountains Xi’an University of Architecture and TechnologyXi’an 710055China Key Laboratory of Northwest Water Resource Environment and EcologyMOEXi’an University of Architecture and TechnologyXi’an 710055China School of Environmental and Municipal Engineering Xi’an University of Architecture and TechnologyXi’an 710055China

During the initial impoundment period of a canyon-shaped reservoir,the water body fluctuated violently regarding water level,hydrological condition,and thermal *** variations may alter the structure of phytoplankton community,resulting in algal blooms and seriously threatening the ecological security of the *** is of great significance to understand the continuous changes of phytoplankton in the initial impoundment period for the protection of reservoir water ***,a two-year in-situ monitoring study was conducted on water quality and phytoplankton in a representative canyonshaped reservoir named Sanhekou and the interannual changes of phytoplankton community and its response to environmental changes during the initial impoundment period were discussed at taxonomic versus functional classification *** results showed that the total nitrogen and permanganate index levels were relatively high in the first year due to rapid water storage and heavy rainfall input,and the more stable hydrological conditions in the second year promoted the increase of algae density and the transformation of community,and the proportion of cyanobacteria increased *** succession order of phytoplankton in the first year of the initial impoundment periodwas Chlorophyta-Bacillariophyta-Chlorophyta,or J/F/X1-P/MP/W1-A/X1/MP,*** the succession order in the second year was Cyanobacteria/Chlorophyta-Bacillariophyta-Chlorophyta,or L_(M)/G/P-P/A/X1-X1/J/*** temperature,relativewater column stability,mixing depth,and pHwere crucial factors affecting phytoplankton community *** study revealed the interannual succession law and driving factors of phytoplankton in the initial impoundment period and provided an important reference for the operation management and ecological protection of canyon-shaped reservoirs.

关键词： Canyon-shaped reservoir Functional groups Initial impoundment Interannual succession Water quality

Zincophilic and hydrophobic bifunctional PFA-COOH-CNT artificial SEI film for highly stable Zn anode

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Nano Research 2025年第2期18卷 346-357页

作者： Lingyao Kuang Bohui Xu Long Zhang Zheshuai Lin Xingxing Gu Xiaolei Ren Yanglong hou Chongqing Key Laboratory of Catalysis and New Environmental Materials College of Environment and ResourcesChongqing 400067China Functional Crystals Lab Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190China School of Materials Shenzhen Campus of Sun Yat-Sen UniversityShenzhen 518107China Beijing Key Laboratory for Magnetoelectric Materials and Devices(BKL-MMD) School of Materials Science and EngineeringPeking UniversityBeijing 100871China

Aqueous zinc-ion batteries(AZIBs)are regarded as one of the most promising rivals in the upcoming high-energy secondary battery market because of their safety and ***,the zinc dendrites growth and hydrogen evolution corrosion of the Zn anode have seriously restricted the application of ***,to overcome these constraints,a three-dimensional(3D)porous PFA-COOH-CNT artificial solid electrolyte interface(SEl)film with high hydrophobic and zincophilic properties was constructed on Zn anode surface by in-situ polymerization of furfuryl alcohol(FA)and carboxyl carbon nanotubes(COOH-CNT).A series of in-situ,ex-situ characterizations as well as the density functional theory(DFT)calculations reveal that the formed PFA-COOH-CNT SEI film with an abundant oxygen-containing group can provide abundant zincophilic sites and induce homogeneous deposition of Zn^(2+),as well as the hydrophobic alkyl and carbon skeleton in PFA-COOH-CNT SEI film can isolate the direct contact of H_(2)O with Zn anode,and inhibit the occurrence of hydrogen evolution reaction(HER).Accordingly,the Zn anode with PFA-COOH-CNT layer can attain an ultra-long cycle life of 2200 h at 1 mA·cm^(-2),1 mAh·cm^(-2).Simultaneously,the assembled PFA-COOH-CNT@ZnllV2Os full cell can also achieve a high reversible capacity of up to 150.2 mAh•g^(-1) at 1 A·g^(-1) after 400 cycles,with a high average coulombic efficiency(CE)of 98.8%.The designed PFA-COOH-CNT artificial SEI film provides a broad prospect for highly stable zinc anode,and can also be extended to other energy storage systems based on metal anodes.

关键词： Zn anode PFA-COOH-CNT solid electrolyte interface(SEI)film zincophilic hydrophobic

老年教育服务中国式现代化建设:价值、机理与路径

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高等继续教育学报 2023年第5期36卷 16-20页

作者：张春江侯焱华王洁华中师范大学老干处湖北武汉430079 华中师范大学马克思主义学院湖北武汉430079

高质量发展老年教育,是实施积极应对人口老龄化国家战略的需要,是提升老年人生命质量、服务现代化建设的客观要求。老年教育服务中国式现代化建设具有重要的时代价值,既消解人口老龄化难题,又拓展优质人力资源。老年教育服务中国式现代... 详细信息

高质量发展老年教育,是实施积极应对人口老龄化国家战略的需要,是提升老年人生命质量、服务现代化建设的客观要求。老年教育服务中国式现代化建设具有重要的时代价值,既消解人口老龄化难题,又拓展优质人力资源。老年教育服务中国式现代化建设的机理主要体现在:教育功能上,为老年群体更新知识技能;政治功能上,引领老年人树立正确政治意识;经济功能上,促进银发经济开发;社会功能上,维护社会和谐稳定;文化功能上,促进社会主义文化建设。必须构建功能完备的老年教育体系,并充分发挥老年教育的教育、政治、经济、社会和文化功能,才能使老年教育更好地为中国式现代化建设服务。

关键词：老年教育中国式现代化人口老龄化

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基于适冷酶研究的生物综合实验教学设计

实验室研究与探索 2019年第6期38卷 149-151,161页

作者：王全富侯艳华王一帆王亚彤哈尔滨工业大学威海校区海洋科学与技术学院

通过引入专业热点问题,并结合学校海洋培养特色,生物综合实验教学设计以海洋微生物适冷酶为材料,对其基因的克隆与生物信息学进行分析。采用同源建模分析手段,分析适冷酶的结构特点;利用亲和层析方法对重组适冷酶进行分离纯化;SDS-PAGE... 详细信息

通过引入专业热点问题,并结合学校海洋培养特色,生物综合实验教学设计以海洋微生物适冷酶为材料,对其基因的克隆与生物信息学进行分析。采用同源建模分析手段,分析适冷酶的结构特点;利用亲和层析方法对重组适冷酶进行分离纯化;SDS-PAGE分析基因工程产物及纯度鉴定,研究重组蛋白活性。通过综合实验使学生深入了解海洋微生物适冷酶基因,挖掘学生的创新潜力,提升学生的实验操作技能,进而达到提高实验教学质量的目的。

关键词：生物综合性实验适冷酶教学研究

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Hydraulic conductivity over a wide suction range of loess with different dry densities

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Journal of Rock Mechanics and Geotechnical Engineering 2025年第1期17卷 481-492页

作者： Xiaokun hou Shengwen Qi Yan Li Fangcui Liu Tonglu Li Hua Li State Key Laboratory of Lithospheric and Environmental Coevolution Institute of Geology and GeophysicsChinese Academy of SciencesBeijing100029China University of Chinese Academy of Sciences Beijing100049China Innovation Academy for Earth Science Beijing100029China School of Civil Engineering University of A CoruñaA Coruña15071Spain Department of Geological Engineering Chang’an UniversityXi’an710054China School of Civil Engineering and Architecture Xi’an Jiaotong University of City CollegeXi’an710018China

Experimental research into the hydraulic conductivity curve (HCC) of unsaturated soil is limited due to the inherent challenge associated with labor, cost, and time. Typically, the HCC is estimated using the soil water characteristic curve (SWCC) based models and saturated hydraulic conductivity (SHC). However, the efficiency of the SWCC-based model is rarely assessed, and the influence of soil density and pore structure on HCC remains incomplete due to limited experimental data. To address this gap, this study employs an innovative filter-paper-based column method, which can measure the HCC over a wide suction range (e.g. 0−105 kPa), to capture the HCCs of both intact and compacted specimens with varying dry densities. The efficiency of two typical SWCC-based models is assessed using the measured data. Meanwhile, the mercury intrusion porosity (MIP) technique is employed to obtain the pore characteristic (i.e. pore size distribution (PSD)) and a method of predicting the HCC using the PSD data is proposed, emphasizing the dominant role of the pore structure in shaping the HCC. The results reveal that the dry density's influence on the HCC is primarily observed within the low suction range, corresponding to variations in the dominant and large pores. In the high suction range, the HCCs align along a linear trajectory when plotted in a log-log format. A notable finding is the overestimation of the HCC obtained from the SWCC-based models using the measured SHC. When the SHC is regarded as a fitting parameter, good agreement is achieved. The adjusted SHC value is typically 0-1 order of magnitude lower than the measured value, and this discrepancy diminishes as dry density increases. On the other hand, the proposed PSD-based model performs well with the measured SHC data. Caution is exercised when using the SHC to estimate the HCC for modeling water movement in partially saturated soil.

关键词： Hydraulic conductivity curve Wide suction range Dry density Pore size distribution Saturated hydraulic conductivity

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Milking the Market

China Today 2025年第1期74卷 39-41页

作者： hou JUAN China Economic Weekly

With climate change becoming direr and the WTO losing its teeth at 30,experts renew call for green collaboration among the world’s three largest *** competition intensifies in the global dairy product market,many foreign dairy companies are focusing on China."China is the best market to debut breakthrough products,"said Bruno Chevot,food and beverage multinational Danone China’s president for North Asia and Oceania.

关键词： companies Market China.

海洋链霉菌M518产的新星形孢菌素衍生物的生物活性

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高技术通讯 2007年第8期17卷 874-879页

作者：吴少杰李富超秦松赵方庆侯艳华 Serge Fotso Heinz H.Fiebig Hartmurt Laatsch 中国科学院海洋研究所青岛266071 中国科学院研究生院北京100049 Department of Organic and Biomolecular Chemistry University of G（o）ttingenTammannstrasse 2 D-37077 G（o）ttingen Germany Oncotest GmbH Am Flughafen 12-14 D-79108 Freiburg Germany

从海洋放线菌M518中分离到1个新结构化合物N-甲酰胺基-星形孢菌素（N-carboxamido-staurosporine）（1c）,以及两个同类型已知化合物星形孢菌素（staurosporine）（1a）和N-甲酰基-星形孢菌素（N-formyl-staurosporine）（1b）.为了解... 详细信息

从海洋放线菌M518中分离到1个新结构化合物N-甲酰胺基-星形孢菌素（N-carboxamido-staurosporine）（1c）,以及两个同类型已知化合物星形孢菌素（staurosporine）（1a）和N-甲酰基-星形孢菌素（N-formyl-staurosporine）（1b）.为了解新化合物的生物活性,对37株人类肿瘤细胞和9种受试微生物细胞株进行了抑制活性筛选,发现化合物1c具有强烈的抗肿瘤活性,对37株肿瘤细胞的平均抑制浓度IC50,IC70和IC90分别为0.016、0.171和2.352μg·mL-1.其活性强于专利化合物1b.通过测定发现,分离到的三种孢菌素类化合物都具有较好的抗微藻活性.菌株M518经16S rRNA系统进化学分析,属于链霉菌属（Streptomyces sp.）.

关键词：星形孢菌素生物活性海洋链霉菌 16SrRNA

Polydopamine-modified biochar supported polylactic acid and zero-valent iron affects the functional microbial community structure for 1,1,1-trichloroethane removal in simulated groundwater

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Chinese Chemical Letters 2025年第1期36卷 420-426页

作者： Haitao Yin Liang Meng Li Li Jiamu Xiao Longrui Liang Nannan Huang Yansong Shi Angang Zhao Jingwen hou School of Environmental and Geographical Sciences Shanghai Normal UniversityShanghai 200234China Yangtze River Delta Urban Wetland Ecosystem National Field Scientific Observation and Research Station Shanghai 201722China Instrumental Analysis Center Shanghai Jiao Tong UniversityShanghai 200240China

In-situ enhanced bioreduction by functional materials is a cost-effective technology to remove chlorinated hydrocarbons in ***,a novel polydopamine(PDA)-modified biochar(BC)-based composite containing nanoscale zero-valent iron(n ZVI)and poly-l-lactic acid(PLLA)(PB-PDA-Fe)was synthesized to enhance the removal of 1,1,1-trichloroethane(1,1,1-TCA)in simulated groundwater with actual site *** impact on functional microbial community structure in system was also *** typical characterizations revealed uniform dispersion of PLA and n ZVI particles on the BC surface,being smoother after PDA *** composite exhibited a significantly higher performance on 1,1,1-TCA removal(82.38%,initial concentration 100 mg/L)than Fe-PDA and PB-PDA *** diversity and richness of the microbial community in the composite treatment consistently decreased during incubation due to a synergistic effect between PLLA-BC and n ***,Pedobacter,Sphaerochaeta,Shewanella,and Clostridium were identified as enriched genera by the composite through DNA-stable isotope probing(DNA-SIP),playing a crucial role in the bioreductive dechlorination *** the above results demonstrate that this novel composite selectively enhances the activity of microorganisms with extracellular respiration functions to efficiently dechlorinate 1,1,*** findings could contribute to understanding the responsive microbial community by carbon-iron composites and expedite the application of in-situ enhanced bioreduction for effective remediation of chlorinated hydrocarbon-contaminated groundwater.

关键词： Biochar-based composite Bioreductive dechlorination 1,1,1-TCA Extracellular respiration microorganisms Groundwater

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Accurate prediction of essential proteins using ensemble machine learning

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Chinese Physics B 2025年第1期34卷 108-115页

作者： Dezhi Lu Hao Wu Yutong hou Yuncheng Wu Yuanyuan Liu Jinwu Wang School of Medicine Shanghai UniversityShanghai 200444China Shanghai Key Laboratory of Orthopaedic Implants Department of Orthopaedic SurgeryShanghai Ninth People’s HospitalShanghai Jiao Tong University School of MedicineShanghai 200011China University of Shanghai for Science and Technology Shanghai 200093China

Essential proteins are crucial for biological processes and can be identified through both experimental and computational *** experimental approaches are highly accurate,they often demand extensive time and *** address these challenges,we present a computational ensemble learning framework designed to identify essential proteins more *** method begins by using node2vec to transform proteins in the protein–protein interaction(PPI)network into continuous,low-dimensional *** also extract a range of features from protein sequences,including graph-theory-based,information-based,compositional,and physiochemical ***,we leverage deep learning techniques to analyze high-dimensional position-specific scoring matrices(PSSMs)and capture evolutionary *** then combine these features for classification using various machine learning *** enhance performance,we integrate the outputs of these algorithms through ensemble methods such as voting,weighted averaging,and *** approach effectively addresses data imbalances and improves both robustness and *** ensemble learning framework achieves an AUC of 0.960 and an accuracy of 0.9252,outperforming other computational *** results demonstrate the effectiveness of our approach in accurately identifying essential proteins and highlight its superior feature extraction capabilities.

关键词： protein-protein interaction(PPI) essential proteins deep learning ensemble learning