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  1. Article: [Research of the Stormwater Runoff and Pollution Characteristics in Rural Area of Yuhang District, Hangzhou].

    Duan, Sheng-hui / Zhao, Yu / Shan, Bao-qing / Tang, Wen-zhong / Zhang, Wen-qiang / Zhang, Shu-zhen / Lang, Chao

    Huan jing ke xue= Huanjing kexue

    2015  Volume 36, Issue 10, Page(s) 3697–3705

    Abstract: ... storm events in Caoqiao and Pujia Tou, which are two typical villages and are located in Yuhang District ...

    Abstract In order to investigate the pollution characteristics of stormwater runoff in the southern developed rural region, the runoff samples were collected from four different underlying surfaces during three storm events in Caoqiao and Pujia Tou, which are two typical villages and are located in Yuhang District of Hangzhou. The content of nutrition (nitrogen and phosphorus) and heavy metals (Mn, Cu, Zn, Ni, Cr, Cd, As, Pb) in the simples were analyzed, and the difference of EMC ( event mean concentration) and pollution load of the contaminants in the runoff on different underlying surfaces were compared. The results showed that the EMC of TSS, COD, NH4(+)-N, TP and TN were 16.19, 21.01, 0.74, 1.39 and 2.39 mg x L(-1) in the Caoqiao, respectively; as to Pujia Tou, they were 3.10, 15.69, 0.90, 0.78 and 3.58 mg x L(-1), respectively. The content of heavy metals was all lower than the national surface water quality of two type water in the runoff. Compared with the quality standards for surface water, the EMC of TP was 9 times and 3. 5 times higher and TN was 1. 8 times and 1. 2 times higher in two areas. Besides, the pollution loads of TSS and COD were the highest in farmland.
    MeSH term(s) China ; Environmental Monitoring ; Metals, Heavy/analysis ; Nitrogen/analysis ; Phosphorus/analysis ; Rain ; Water/chemistry ; Water Movements ; Water Pollutants, Chemical/analysis ; Water Quality
    Chemical Substances Metals, Heavy ; Water Pollutants, Chemical ; Water (059QF0KO0R) ; Phosphorus (27YLU75U4W) ; Nitrogen (N762921K75)
    Language Chinese
    Publishing date 2015-10
    Publishing country China
    Document type English Abstract ; Journal Article
    ISSN 0250-3301
    ISSN 0250-3301
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Early middle Holocene climate oscillations recorded in the Beihuqiao Core, Yuhang, Zhejiang Province, China

    Ye, Wei / Qu Chen / Lidong Zhu / Fengquan Li / Tianyang Wang / Longjuan Cheng / Yunxia Zhang

    Journal of paleolimnology. 2018 Feb., v. 59, no. 2

    2018  

    Abstract: A long-standing controversy exists concerning the spatial and temporal characteristics of Holocene climate change in China. Zhejiang is located in the southeast of China, where the East Asian monsoon dominates the climate and a Neolithic culture ... ...

    Abstract A long-standing controversy exists concerning the spatial and temporal characteristics of Holocene climate change in China. Zhejiang is located in the southeast of China, where the East Asian monsoon dominates the climate and a Neolithic culture flourished. In recent years, geographers have debated the climatic conditions existing at the time of the Neolithic cultures. This study reconstructed the sedimentary environment between 11.30 and 4.17 cal ka BP based on a multi-proxy analysis of a 14.3 meter sediment core, drilled in Beihuqiao, Zhejiang Province, China. The results show: (1) The climate was getting warm between 11.50 and 8.77 cal ka BP. Grain size became finer from the bottom to the top layer, accompanied by an increase in the chemical index of alteration (CIA), Mg/Sr ratio, the percentage of clay, pollen concentrations, and a decrease in SiO₂/Al₂O₃ ratio, and the value of bases–alumina (ba), as well as other trace elements. (2) Between 8.77 and 7.99 cal ka BP, the sediment is composed of gray-yellow and gray silt. The percentage of CaO and the ratio of CaO + Na₂O + K₂O to Al₂O₃ is much higher. The pollen concentration sharply decreases. The climate was cold and dry in the early stages of this period, but became relatively warmer and wetter in the later stages. (3) The Holocene Climatic Optimum occurred at 7.99–5.68 cal ka BP. Higher contents of clay, total Fe₂O₃, Al₂O₃, CIA, the chemical proxy of alteration, pollen concentration, evergreen pollens, and high values of Mg/Sr are observed at this stage, coinciding with a lower SiO₂/Al₂O₃ value, (CaO + Na₂O + K₂O)/Al₂O₃ ratio, and an obvious reduction in silt/clay, and SiO₂ and CaO concentrations. (4) During the period 5.68–4.17 cal ka BP, the temperature in the study area declined in a stepwise fashion. The grain size became finer, and the Mg/Sr ratio decreased gradually.
    Keywords aluminum oxide ; calcium oxide ; clay ; climate change ; climatic factors ; ferric oxide ; limnology ; magnesium ; monsoon season ; paleontology ; pollen ; silica ; silt ; strontium ; temperature ; China
    Language English
    Dates of publication 2018-02
    Size p. 263-278.
    Publishing place Springer Netherlands
    Document type Article
    ZDB-ID 1478181-5
    ISSN 1573-0417 ; 0921-2728
    ISSN (online) 1573-0417
    ISSN 0921-2728
    DOI 10.1007/s10933-017-9959-x
    Database NAL-Catalogue (AGRICOLA)

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  3. Article: Efficacy of

    Li, Qing / Pei, Ronghong / Chen, Erbao / Zheng, Fuping / Zhang, Yuhang / Meng, Shihao

    Heliyon

    2024  Volume 10, Issue 4, Page(s) e26167

    Abstract: Jiuzao, ...

    Abstract Jiuzao,
    Language English
    Publishing date 2024-02-13
    Publishing country England
    Document type Journal Article
    ZDB-ID 2835763-2
    ISSN 2405-8440
    ISSN 2405-8440
    DOI 10.1016/j.heliyon.2024.e26167
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Efficient preparation of icariin from epimedin C by recyclable biphasic enzymatic hydrolysis.

    Chen, Wang / Zhang, Yue / Zhang, Yuhang / Feng, Zili / He, Xu

    Natural product research

    2024  , Page(s) 1–7

    Abstract: Icariin is the most bioactive ingredient ... ...

    Abstract Icariin is the most bioactive ingredient of
    Language English
    Publishing date 2024-04-17
    Publishing country England
    Document type Journal Article
    ZDB-ID 2185747-7
    ISSN 1478-6427 ; 1478-6419
    ISSN (online) 1478-6427
    ISSN 1478-6419
    DOI 10.1080/14786419.2024.2340057
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: DYT-

    Fan, Yuhang / Si, Zhibo / Wang, Linlin / Zhang, Lei

    Frontiers in neuroscience

    2023  Volume 17, Page(s) 1216929

    Abstract: DYT- ...

    Abstract DYT-
    Language English
    Publishing date 2023-08-10
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2411902-7
    ISSN 1662-453X ; 1662-4548
    ISSN (online) 1662-453X
    ISSN 1662-4548
    DOI 10.3389/fnins.2023.1216929
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Adaptive dynamic self-learning grey wolf optimization algorithm for solving global optimization problems and engineering problems.

    Zhang, Yijie / Cai, Yuhang

    Mathematical biosciences and engineering : MBE

    2024  Volume 21, Issue 3, Page(s) 3910–3943

    Abstract: The grey wolf optimization algorithm (GWO) is a new metaheuristic algorithm. The GWO has the advantages of simple structure, few parameters to adjust, and high efficiency, and has been applied in various optimization problems. However, the orginal GWO ... ...

    Abstract The grey wolf optimization algorithm (GWO) is a new metaheuristic algorithm. The GWO has the advantages of simple structure, few parameters to adjust, and high efficiency, and has been applied in various optimization problems. However, the orginal GWO search process is guided entirely by the best three wolves, resulting in low population diversity, susceptibility to local optima, slow convergence rate, and imbalance in development and exploration. In order to address these shortcomings, this paper proposes an adaptive dynamic self-learning grey wolf optimization algorithm (ASGWO). First, the convergence factor was segmented and nonlinearized to balance the global search and local search of the algorithm and improve the convergence rate. Second, the wolves in the original GWO approach the leader in a straight line, which is too simple and ignores a lot of information on the path. Therefore, a dynamic logarithmic spiral that nonlinearly decreases with the number of iterations was introduced to expand the search range of the algorithm in the early stage and enhance local development in the later stage. Then, the fixed step size in the original GWO can lead to algorithm oscillations and an inability to escape local optima. A dynamic self-learning step size was designed to help the algorithm escape from local optima and prevent oscillations by reasonably learning the current evolution success rate and iteration count. Finally, the original GWO has low population diversity, which makes the algorithm highly susceptible to becoming trapped in local optima. A novel position update strategy was proposed, using the global optimum and randomly generated positions as learning samples, and dynamically controlling the influence of learning samples to increase population diversity and avoid premature convergence of the algorithm. Through comparison with traditional algorithms, such as GWO, PSO, WOA, and the new variant algorithms EOGWO and SOGWO on 23 classical test functions, ASGWO can effectively improve the convergence accuracy and convergence speed, and has a strong ability to escape from local optima. In addition, ASGWO also has good performance in engineering problems (gear train problem, ressure vessel problem, car crashworthiness problem) and feature selection.
    Language English
    Publishing date 2024-03-28
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2265126-3
    ISSN 1551-0018 ; 1551-0018
    ISSN (online) 1551-0018
    ISSN 1551-0018
    DOI 10.3934/mbe.2024174
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Hydrogen Peroxide and Dopamine Sensors Based on Electrodeposition of Reduced Graphene Oxide/Silver Nanoparticles.

    Zhang, Yuhang / Li, Na / Liu, Bo / Zhang, Hangyu

    Sensors (Basel, Switzerland)

    2024  Volume 24, Issue 2

    Abstract: In this work, silver nanoparticles (AgNPs)/reduced graphene oxide (rGO) nanocomposites were electrodeposited on glassy carbon electrodes (GCE) to construct electrochemical sensors for the detection of hydrogen peroxide ( ... ...

    Abstract In this work, silver nanoparticles (AgNPs)/reduced graphene oxide (rGO) nanocomposites were electrodeposited on glassy carbon electrodes (GCE) to construct electrochemical sensors for the detection of hydrogen peroxide (H
    Language English
    Publishing date 2024-01-07
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2052857-7
    ISSN 1424-8220 ; 1424-8220
    ISSN (online) 1424-8220
    ISSN 1424-8220
    DOI 10.3390/s24020355
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Prediction Method for High-Speed Laser Cladding Coating Quality Based on Random Forest and AdaBoost Regression Analysis.

    Xv, Yifei / Sun, Yaoning / Zhang, Yuhang

    Materials (Basel, Switzerland)

    2024  Volume 17, Issue 6

    Abstract: The initial melting quality of a high-speed laser cladding layer has an important impact on its post-treatment and practical application. In this study, based on the repair of hydraulic support columns of coal mining machines, the influence of high-speed ...

    Abstract The initial melting quality of a high-speed laser cladding layer has an important impact on its post-treatment and practical application. In this study, based on the repair of hydraulic support columns of coal mining machines, the influence of high-speed laser cladding process parameters on the quality of Fe-Cr-Ni alloy coatings was investigated to realize the accurate prediction of coating quality. The Taguchi orthogonal method was used to design the L
    Language English
    Publishing date 2024-03-08
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2487261-1
    ISSN 1996-1944
    ISSN 1996-1944
    DOI 10.3390/ma17061266
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Photophysical Properties of (

    Sun, Yuhang / Mu, Hongyan / Wang, Yang / Gao, Jiaan / Zhang, Yifu / Li, Hui / Cai, Jixing

    The journal of physical chemistry. A

    2024  Volume 128, Issue 11, Page(s) 2092–2102

    Abstract: In view of the application prospects in biomedicine of ( ...

    Abstract In view of the application prospects in biomedicine of (
    Language English
    Publishing date 2024-03-11
    Publishing country United States
    Document type Journal Article
    ISSN 1520-5215
    ISSN (online) 1520-5215
    DOI 10.1021/acs.jpca.4c00084
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Integrating elastic band into physical education classes to enhance strength training.

    Fang, Qun / Zhang, Xiaochao / Xia, Yuhang / Huang, Fang

    Frontiers in psychology

    2023  Volume 14, Page(s) 1037736

    Language English
    Publishing date 2023-02-15
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2563826-9
    ISSN 1664-1078
    ISSN 1664-1078
    DOI 10.3389/fpsyg.2023.1037736
    Database MEDical Literature Analysis and Retrieval System OnLINE

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