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| 1 | An EcoCity model for regulating urban land cover structure and thermal environment: Taking Beijing as an example显示文摘Urban land-use/cover changes and their effects on the eco-environment have long been an active research topic in the urbanization field. However, the characteristics of urban inner spatial heterogeneity and its quantitative relationship with thermal environment are still poorly understood, resulting in ineffective application in urban ecological planning and management.Through the integration of 'spatial structure theory' in urban geography and 'surface energy balance' in urban climatology, we proposed a new concept of urban surface structure and thermal environment regulation to reveal the mechanism between urban spatial structure and surface thermal environment. We developed the EcoCity model for regulating urban land cover structure and thermal environment, and established the eco-regulation thresholds of urban surface thermal environments. Based on the comprehensive analysis of experimental observation, remotely sensed and meteorological data, we examined the spatial patterns of urban habitation, industrial, infrastructure service, and ecological spaces. We examined the impacts of internal land-cover components(e.g., urban impervious surfaces, greenness, and water) on surface radiation and heat flux. This research indicated that difference of thermal environments among urban functional areas is closely related to the proportions of the land-cover components.The highly dense impervious surface areas in commercial and residential zones significantly increased land surface temperature through increasing sensible heat flux, while greenness and water decrease land surface temperature through increasing latent heat flux. We also found that different functional zones due to various proportions of green spaces have various heat dissipation roles and ecological thresholds. Urban greening projects in highly dense impervious surfaces areas such as commercial, transportation, and residential zones are especially effective in promoting latent heat dissipation efficiency of vegetation, leading to strongly cooling effect of unit vegetation coverage. This research indicates that the EcoCity model provides the fundamentals to understand the coupled mechanism between urban land use structure and surface flux and the analysis of their spatiotemporal characteristics. This model provides a general computational model system for defining urban heat island mitigation, the greening ratio indexes, and their regulating thresholds for different functional zones. | KUANG WenHui YANG TianRong LIU AiLin ZHANG Chi LU DengSheng CHI WenFeng | 2017 | Science China Earth Sciences2017,60,6: | 16 |
| 2 | Remote sensing-based artificial surface cover classification in Asia and spatial pattern analysis显示文摘Artificial surfaces, characterized with intensive land-use changes and complex landscape structures, are important indicators of human impacts on terrestrial ecosystems. Without high-resolution land-cover data at continental scale, it is hard to evaluate the impacts of urbanization on regional climate, ecosystem processes and global environment. This study constructed a hierarchical classification system for artificial surfaces, promoted a remote sensing method to retrieve subpixel components of artificial surfaces from 30-m resolution satellite imageries(Globe Land30) and developed a series of data products of high-precision urban built-up areas including impervious surface and vegetation cover in Asia in 2010. Our assessment, based on multisource data and expert knowledge, showed that the overall accuracy of classification was 90.79%. The mean relative error for the impervious surface components of cities was 0.87. The local error of the extracted information was closely related to the heterogeneity of urban buildings and vegetation in different climate zones. According to our results, the urban built-up area was 18.18×104 km2, accounting for 0.59% of the total land surface areas in Asia; urban impervious surfaces were 11.65×104 km2, accounting for 64.09% of the total urban built-up area in Asia. Vegetation and bare soils accounted for 34.56% of the urban built-up areas. There were three gradients: a concentrated distribution, a scattered distribution and an indeterminate distribution from east to west in terms of spatial pattern of urban impervious surfaces. China, India and Japan ranked as the top three countries with the largest impervious surface areas, which respectively accounted for 32.77%, 16.10% and 11.93% of the urban impervious surface area of Asia. We found the proportions of impervious surface and vegetation cover within urban built-up areas were closely related to the economic development degree of the country and regional climate environment. Built-up areas in developed countries had relatively low impervious surface and high public green vegetation cover, with 50–60% urban impervious surfaces in Japan, South Korea and Singapore. In comparison, the proportion of urban impervious surfaces in developing countries is approaching or exceeding 80% in Asia. In general, the composition and spatial patterns of built-up areas reflected population aggregation and economic development level as well as their impacts on the health of the environment in the sub-watershed. | KUANG WenHui CHEN LiJun LIU JiYuan XIANG WeiNing CHI WenFeng LU DengSheng YANG TianRong PAN Tao LIU AiLin | 2016 | Science China Earth Sciences2016,59,9: | 12 |
| 3 | Research Progress of the Antiviral Bioactivities of Natural Flavonoids显示文摘Flavonoids are now considered as an indispensable component in a variety of nutraceutical and pharmaceutical applications.Most recent researches have focused on the health aspects of flavonoids for humans.Especially,different flavonoids have been investigated for their potential antiviral activities,and several natural flavonoids exhibited significant antiviral properties both in vitro and in vivo.This review provides a survey of the literature regarding the evidence for antiviral bioactivities of natural flavonoids,highlights the cellular and molecular mechanisms of natural flavonoids on viruses,and presents the details of most reported flavonoids.Meanwhile,future perspectives on therapeutic applications of flavonoids against viral infections were discussed. | Lin Wang Junke Song Ailin Liu Bin Xiao Sha Li Zhang Wen Yang Lu Guanhua Du | 2020 | Natural Products and Bioprospecting2020,10,5: | 4 |
| 4 | Determination of Cd-MT in Pteria penguin with Indirect Non-Competitive ELISA显示文摘Cadmium-metallothionein (Cd-MT) of Pteria penguin was used to immunize domestic rabbit in order to obtain polyclonal antibody against Cd-MT. Using the anti-Cd-MT antibody, a method of indirect non-competitive enzyme-linked immunosorbent assay (non-competitive ELISA) was established to detect shellfish Cd-MT. In this case, the minimum detectable concentration of P. penguin Cd-MT was (4.563±0.051) ng/mL. The linear range of detection was 9.75-2.0×104 ng/mL. Intra-assay relative standard deviation (RSD) was less than 11.6%, and inter-assay RSD less than 6.7%. The recovery rates ranged from 83.7% to 119.0%. The polyclonal antibody against Cd-MT of P. penguin can also be used to detect MT of other four types of shellfish. In the crude extracts from different organs of P. penguin, the MT concentrations determined by this method matched well with the concentrations of cadmium detected by the atomic absorption spectroscopy. | WU Xiaoping LIAO Ailin ZHANG Chaohua LIAO Yan LU Hongyu YANG Jie | 2011 | Wuhan University Journal of Natural Sciences2011,16,4: | 2 |
| 5 | Elevated levels of urinary 8-hydroxy-2 -deoxyguanosine, lymphocytic micronuclei, and serum glutathione S-transferase in workers exposed to coke oven emissions 显示文摘 | LIU Ailin LU Wenqing WANG Zengzhen | 2006 | Environ Health Perspect2006,114,5: | 1 |
| 6 | Ibrutinib Resistance in Chronic Lymphocytic Leukemia显示文摘 | Richard R. Furman Shuhua Cheng Pin Lu Menu Setty Alexendar R. Perez Ailin Guo Joelle Racchumi Guozhou Xu Hao Wu Jiao Ma Susanne M. Steggerda Morton Coleman Christina Leslie Y. Lynn Wang | 2014 | The New England Journal of Medicine2014,,24: | 1 |
| 7 | Comparative study of the beam-width spreading of partially coherent Hermite-sinh-Gaussian beams in at- mospheric turbulence显示文摘 | Li Jinhong Yang Ailin Lu Baida | 2008 | J Opt Soc Am A2008,25,11: | 1 |
| 8 | Hsa-mir-499 rs3746444 polymorphism and cancer risk:a meta-analysis显示文摘MicroRNAs(miRNAs) are gene regulators involved in numerous diseases including cancer,heart disease,neurological disorders,vascular abnormalities and autoimmune conditions.Although hsa-mir-499 rs3746444 polymorphism was shown to contribute to the susceptibility of multiple genes to cancer,the data have yielded conflicting results.Therefore,this meta-analysis was performed to provide a comprehensive assessment of potential association between hsa-mir-499 rs3746444 polymorphism and cancer risk.In this meta-analysis,a total of 9 articles regarding 10 eligible case-control studies in English(including 6134 cases and 7141 controls) were analyzed.No significant association between hsa-mir-499 rs3746444 polymorphism and overall cancer risk was demonstrated.However,an increased risk was observed in the subgroup of breast cancer patients(G allele vs A allele:OR = 1.10,95% CI = 1.00-1.20;P heterogeneity = 0.114;I 2 = 53.9%) and population-based studies(G allele vs A allele:OR = 1.12,95% CI = 1.00-1.25;P heterogeneity = 0.062;I 2 = 64.0%).The findings suggested an association between hsa-mir-499 rs3746444 polymorphism and increased risk to breast cancer. | Peng Zou Lin Zhao Haitao Xu Ping Chen Aihua Gu Ning Liu Peng Zhao Ailin Lu | 2012 | The Journal of Biomedical Research2012,26,4: | 0 |