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Spatial-temporal Characteristics of Green Development Efficiency and Influencing Factors in Restricted Development Zones:A Case Study of Jilin Province,China

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Chinese Geographical Science 2020年第4期30卷 736-748页

作者： LI Ping TONG Lianjun GUO Yanhua GUO fuyou Northeast Institute of Geography and Agroecology Chinese Academy of SciencesChangchun 130102China University of Chinese Academy of Sciences Beijing 100049China Urban Development Institute Jilin Province Academy of Social SciencesChangchun 130000China College of Geographical Science Northeast Normal UniversityChangchun 130024China College of Geography and Tourism Qufu Normal UniversityRizhao 276826China

Green development is an important issue of sustainable development in *** to the relatively backward economy and the fragile ecological environment,restricted development zones need to embrace green *** 38 counties in Jilin Province as the empirical research objects,and based on cross-sectional data for each county in 2005,2010,and 2015,we accurately depicted the spatiotemporal evolutionary characteristics of green development efficiency(GDE)in restricted development zones of Jilin Province using the slacks-based measure-data envelope analysis(SBM-DEA)***,the factors that influence GDE were further analyzed using the Tobit *** found that:first,GDE showed a V-shaped trend in restricted development zones of Jilin *** differences in GDE in the eastern,central,and western Jilin Province increased ***,76%of counties in the restricted development zones had high or higher *** resource-based cities were the main areas with low or lower ***,the economic development level was the core factor affecting *** level had a significant negative effect on GDE in the restricted development *** effect of technological innovation level on GDE fluctuated,and we found that a‘backward mechanism’of technological innovation was beginning to *** structure and environmental governance had no significant effects on GDE.

关键词： green development efficiency spatiotemporal evolution influencing factor restricted development zones Jilin Province

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Warm-Season Diurnal Variations of Total, Stratiform, Convective, and Extreme Hourly Precipitation over Central and Eastern China

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Advances in Atmospheric Sciences 2019年第2期36卷 143-159页

作者： Yongguang ZHENG Yanduo GONG Jiong CHEN fuyou TIAN National Meteorological Centre Chinese Academy of Meteorological Sciences Wuhan Institute of Heavy Rain of China Meteorological Administration Heilongjiang Meteorological Office

Diurnal variations in amount, frequency and intensity of warm-season hourly precipitation(HP) at seven levels, which are defined as HP 0.1, 0.5, 1, 5, 10, 20 and 50 mm, are revealed based on no less than 30 years of hourly rain-gauge observations at national stations over central and eastern China(CEC). This study investigates the variations, relationships, differences and similarities of total, stratiform, convective and extreme HP over the entire CEC and various subregions. Results indicate that the variations in the amount and frequency of HP at the seven levels over the entire CEC all display a bimodal feature. For various regions, the variations of total HP mostly feature two peaks, while convective HP mainly occurs in the late afternoon and determines the diurnal variation of total HP intensity. On the basis of the primary peak time periods of HP frequency at all levels over different subregions, the variations can be classified into three main categories: late-afternoon primary peak, nocturnal primary peak, and time-shifting primary peak. However, the variations over some coastal regions like the Liaodong Peninsula, the Shandong Peninsula, and the coastal regions of Guangdong, distinctly differ from those over their corresponding larger regions. Overall, the normalized diurnal variation amplitude of amount and frequency increases with the increasing HP intensity; convective precipitation can be represented by HP 10 mm; and the intensity of HP 50 mm is slightly larger during the nighttime than during the daytime over the entire CEC. In northern China, diurnal variation in HP 5 mm can represent well that in convective precipitation.

关键词： diurnal variation total precipitation stratiform precipitation convective precipitation extreme precipitation

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Construction of dual Z-scheme Bi2WO6/g-C_(3)N_(4)/black phosphorus quantum dots composites for effective bisphenol A degradation

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Journal of Environmental Sciences 2023年第2期124卷 617-629页

作者： fuyou Du Zhan Lai Huiyang Tang Haiyan Wang Chenxi Zhao College of Biological and Environmental Engineering Changsha UniversityChangsha 410022China

In this work,a novel dual Z-scheme Bi_(2)WO_(6)/g-C_(3)N_(4)/black phosphorus quantum dots(Bi_(2)WO_(6)/g-C_(3)N_(4)/BPQDs)composites were fabricated and utilized towards photocatalytic degradation of bisphenol A(BPA)under visible-light *** the content of g-C_(3)N_(4) and BPQDs in Bi_(2)WO_(6)/g-C_(3)N_(4)/BPQDs composites to a suitable mass ratio can enhance the visible-light harvesting capacity and increase the charge separation efficiency and the transfer rate of excited-state electrons and holes,resulting in much higher photocatalytic activity for BPA degradation(95.6%,at 20 mg/L in 120 min)than that of Bi2WO6(63.7%),g-C_(3)N_(4)(25.0%),BPQDs(8.5%),and Bi_(2)WO_(6)/g-C_(3)N_(4)(79.6%),*** trapping experiments indicated that photogenerated holes(h+)and superoxide radicals(•O_(2)−)played crucial roles in photocatalytic BPA ***,the possible degradation pathway and photocatalytic mechanism was proposed by analyzing the BPA *** also demonstrated that the Bi2WO6/g-C_(3)N_(4)/BPQDs as effective photocatalystswas stable and have promising potential to remove environmental contaminants from real water samples.

关键词： Dual Z-scheme Bi_(2)WO_(6) Graphitic carbon nitride(g-C_(3)N_(4)) Black phosphorus quantum dots (BPQDs) Bisphenol A(BPA)

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Synthesis of NaYF_4:Nd@NaLuF_4@SiO_2@PS colloids for fluorescence imaging in the second biological window

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Journal of Rare Earths 2018年第2期36卷 113-118页

作者： Dongpeng Yang Cong Cao Wei Feng Chunhui Huang fuyou Li Department of Chemistry State Key Laboratory of Molecular Engineering of PolymersInstitutes of Biomedical Sciences & Collaborative Innovation Center of Chemistry for Energy Materials Fudan University

Nd doped nanoparticles is commonly used as bioimaging agents but presents poor stability. Here, a polymer coating is applied to NaYF4：Nd nanoparticles using a versatile step-by-step coating strategy. The as-synthesized NaYF_4：Nd@NaLuF_4@SiO_2@PS colloids show good stability in various polar solvent and are very stable in water at least for 6 months. These NaYF_4：Nd@NaLuF_4@SiO_2@PS colloids can exhibit strong down converting photoluminescence when excited by 808 nm lasers. Moreover, these NaYF_4：Nd@NaLuF_4@SiO_2@PS colloids accumulate in liver of mice when used as bio-imaging agents. which exhibit strong fluorescence luminescence in NIR Ⅱ window.

关键词： Neodymium Polystyrene Stability Bioimaging Rare earths

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Focusing Properties of Short Space-Charge Lenses

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Chinese Physics Letters 1991年第7期8卷 337-340页

作者： YU Qingchang QIU Hong SHU Chuanyu JIANG fuyou Institute of High Energy Physics Academia SinicaBeijing 100039

The electron densities in a short space-charge lens are measured with the radiofrequency method under different applied magnetic inductions and voltages,and relations between the focusing power of the lens and the ext... 详细信息

关键词： charge Focus method

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Hausdorff point convolution with geometric priors

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Science China(Information Sciences) 2021年第11期64卷 67-79页

作者： Liqiang LIN Pengdi HUANG fuyou XUE Kai XU Daniel COHEN-OR Hui HUANG College of Computer Science and Software Engineering Shenzhen University School of Computer Science National University of Defense Technology

Developing point convolution for irregular point clouds to extract deep features remains challenging. Current methods evaluate the response by computing point set distances which account only for the spatial alignment between two point sets, but not quite for their underlying shapes. Without a shapeaware response, it is hard to characterize the 3 D geometry of a point cloud efficiently with a compact set of kernels. In this paper, we advocate the use of modified Hausdorff distance as a shape-aware distance measure for calculating point convolutional responses. The technique we present, coined Hausdorff point convolution(HPC), is shape-aware. We show that HPC constitutes a powerful point feature learning with a rather compact set of only four types of geometric priors as kernels. We further develop an HPC-based deep neural network(HPC-DNN). Task-specific learning can be achieved by tuning the network weights for combining the shortest distances between the input and the kernel point sets. We also realize hierarchical feature learning by designing a multi-kernel HPC for multi-scale feature encoding. Extensive experiments demonstrate that HPC-DNN outperforms strong point convolution baselines(e.g., KPConv), achieving 2.8%m Io U performance boost on S3 DIS and 1.5% on Semantic KITTI for semantic segmentation task.

关键词： point convolution Hausdorff distance geometric prior deep neural network

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^(1)O_(2)-activatable Eu^(3+)-afterglow nanoprobe for highly sensitive detection of porphyria in whole blood

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Journal of Rare Earths 2022年第9期40卷 1382-1388,I0002页

作者： Jia Liu Jiamiao Yin Hang Yuan Yiyang Zhao Shihua Luo fuyou Li Department of Chemistry State Key Laboratory of Molecular Engineering of PolymersFudan UniversityShanghai 200433China Hangzhou Foreign Languages School Hangzhou 310023China Department of Traumatology Ruijin HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai 200025China

High-sensitivity detection of porphyrin in blood is very important for the early diagnosis and treatment of *** on the advantages of longer luminescence lifetime and lower background interference,organic afterglow molecular porphyrin detection probes were developed,but these probes show poor water solubility and insufficient luminescence ***,we present an afterglow nanoprobe(Eu-NP)for porphyria detection in whole *** luminescent substance(europium complex)and the organic vinyl co mpound reacted with singlet oxygen(^(1)O_(2))were selected for encapsulation in polystyrene ***-NP can respond to^(1)O_(2)produced by porphyrins,and the detection signals can be obtained by the emission of the afterglow Eu^(3+)-emissive ***-NP can achieve high-sensitivity detection of porphyrin,and the lowest detection limit reaches 0.29μmol/*** porphyrin detection in whole blood samples is consistent with clinical diagnosis *** with the organic afterglow molecule,the Eu-NPs constructed in this work show a higher signal-to-noise ratio and sensitivity of porphyria detection.

关键词： Porphyria Afterglow Nanoprobe Europium luminescence Whole blood detection Rare earths

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A Review of Research on Warm-Sector Heavy Rainfall in China

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Advances in Atmospheric Sciences 2019年第12期36卷 1299-1307页

作者： Jianhua SUN Yuanchun ZHANG Ruixin LIU Shenming FU fuyou TIAN Key Laboratory of Cloud-Precipitation Physics and Severe Storms Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters Nanjing University of Information Science and TechnologyNanjing 210044China Beijing Municipal Weather Forecast Center Beijing 100089China National Meteorological Center China Meteorological AdministrationBeijing 100081China

Warm-sector heavy rainfall (WSHR) events in China have been investigated for many years. Studies have investigated the synoptic weather conditions during WSHR formation, the categories and general features, the triggering mechanism, and structural features of mesoscale convective systems during these rainfall events. The main results of WSHR studies in recent years are summarized in this paper. However, WSHR caused by micro- to mesoscale systems often occurs abruptly and locally, making both numerical model predictions and objective forecasts difficult. Further research is needed in three areas:(1) The mechanisms controlling WSHR events need to be understood to clarify the specific effects of various factors and indicate the influences of these factors under different synoptic background circulations. This would enable an understanding of the mechanisms of formation, maintenance, and organization of the convections in WSHR events.(2) In addition to South China, WSHR events also occur during the concentrated summer precipitation in the Yangtze River-Huaihe River Valley and North China. A high spatial and temporal resolution dataset should be used to analyze the distribution and environmental conditions, and to further compare the differences and similarities of the triggering and maintenance mechanisms of WSHR events in different regions.(3) More studies of the mechanisms are required, as well as improvements to the model initial conditions and physical processes based on multi-source observations, especially the description of the triggering process and the microphysical parameterization. This will improve the numerical prediction of WSHR events.

关键词： warm-sector heavy rainfall synoptic weather conditions triggering mechanism South China

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One-step polymerized lanthanide-based polystyrene microsphere for sensitive lateral flow immunoassay

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Journal of Rare Earths 2021年第1期39卷 11-18,I0001页

作者： Zhenhua Li Qingyun Liu Yongfang Li Wei Yuan fuyou Y.Li State Key Laboratory of Molecular Engineering of Polymers Department of ChemistryFudan UniversityShanghai200433China

Lateral flow immunoassays(LFIAs)provide a powerful tool for rapid real-time assay of cancer biomarkers,which is vital for cancer detection and treatment ***-based LFIAs is one of the most widely used methods,especially Eu(Ⅲ)chelates,which possess distinctive and attractive characteristics,such as time-resolved fluorescence and large Stokes ***,we adopted a new onestep mini-emulsion polymerization method to synthesize carboxyl-modified fluorescent microsphere(OS-EuCM),which shows good stability,resistance to non-specific adhesion and uniform particle size distribution compared with traditional microspheres synthesized through the swelling *** from the above advantages,OS-EuCM was successfully used in LFIAs to detect tumor marker Alpha-fetoprotein with high sensitivity and selectivity in concentration as high as 320 ng/mL,as well as a detection limit of 0.683 ng/mL This lanthanide-based microsphere holds great potential for rapid pointof-care screening and clinical application.

关键词： Eu(Ⅲ)chelate Polystyrene microsphere Mini-emulsion polymerization Lateral flow immunoassays Alpha-fetoprotein Rare earths

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Spatio-temporal Differentiation and Driving Factors of Industrial Ecology of Restricted Development Zone from Adaptive Perspective:A Case Study of Shandong,China

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Chinese Geographical Science 2021年第2期31卷 329-341页

作者： GUO fuyou GAO Siqi TONG Lianjun QIU Fangdao YAN Hengzhou School of Geography and Tourism Qufu Normal UniversityRizhao 276800China Rizhao Key Laboratory of Territory Spatial Planning and Ecological Construction Rizhao 276800China Northeast Institute of Geography and Agricultural Ecology Chinese Academy of SciencesChangchun 130102China School of Geography Geomatics and PlanningJiangsu Normal UniversityXuzhou 221116China

Based on the adaptive analysis paradigm,this paper constructs an evaluation index system and an evaluation model of the level of industrial ecology of a restricted development zone from the perspective of the industrial system and of the environmental system,and studies the spatial-temporal differentiation characteristics and the driving factors of the level of industrial ecology of the restricted development zone of the Shandong Province,China,by using a variety of measurement *** results show that:1)In the temporal dimension,the level of industrial ecology of the research area increased from 2005 to 2017,while in the regional dimension,it was higher in the eastern coastal areas,followed by the northwestern area and the southwestern area;2)In the spatial dimension,from 2005 to 2017 the level of industrial ecology of the research area had a clear spatial dependence,and the regional spatial agglomeration of the restricted development zones with similar industrial ecology levels become increasingly evident;3)On the whole,the industrial ecology level in the study area had a clear spatial differentiation pattern,as it was higher in the north and in the east and lower in the south and in the ***,its evolution model changed from a‘three-core driven model’to a‘spatial scattered mosaic distribution model’,and then to a‘single-core driven model’;4)Industrial ecology was positively correlated with economic development,foreign investment,science and technology,and negatively correlated with the government role,while industrial structure and environmental regulation failed to pass the statistical significance test.

关键词： adaptability industrial ecology spatio-temporal differentiation restricted development zone Shandong Province,China

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