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城市高温脆弱性预警系统构建与应用

热带地理 2024年第1期44卷 121-142页

作者：吴朝玮税伟黄志刚汪春辉乔璐吴叶玲福州大学环境与安全工程学院福州350108 复旦大学公共卫生学院上海200032 福建省气象局福州350001 福建省气象服务中心福州350001 湖南大学经济与贸易学院长沙410006 福建医科大学附属第一医院福州350005

基于人与环境耦合系统视角构建了“暴露性-易损性-适应力”的城市高温脆弱性研究框架和预警指标体系,提出了城市高温指数、多元主体适应力耦合技术、多元群体脆弱风险评价标准库等关键预警技术和方法。以城市多元利益主体为服务对象,设... 详细信息

基于人与环境耦合系统视角构建了“暴露性-易损性-适应力”的城市高温脆弱性研究框架和预警指标体系,提出了城市高温指数、多元主体适应力耦合技术、多元群体脆弱风险评价标准库等关键预警技术和方法。以城市多元利益主体为服务对象,设计了城市高温脆弱性预警系统,在厦门市试点应用并取得了良好效果。2021年9月“城市高温指数”业务模块在福建省公共气象服务平台——“知天气”App正式上线。基于多尺度脆弱性框架的研究视角和方法为动态精细化表征极端自然灾害的影响提供了有效途径。文章提出的城市高温脆弱性预警系统支持了城市多元利益主体在高温天气下开展生产生活,也有助于地方定制针对性的防灾减灾方案。

关键词：气候变化人与环境耦合系统高温脆弱性预警系统厦门市

Regional Evaluation of Winter Rapeseed Response to K Fertilization, K Use Efficiency, and Critical Level of Soil K in the Yangtze River Valley

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Agricultural Sciences in China 2011年第6期10卷 911-920页

作者： ZOU Juan LU Jian-wei LI Yin-shui LI Xiao-kun College of Resources and Environment Huazhong Agricultural University Wuhan 430070 P.R. China

The investigation was carried out to study the response of winter rapeseed to potassium （K） feritlization and the critical soil available K level for current winter rapeseed production in the Yangtze River Valley （YRV） of China. A total of 132 field experiments were conducted in fields of farmers in the major winter rapeseed growing areas in YRV in 2000/2001 and 2004/2005 to 2006/2007 during growing season. Results of these field experiments showed that the average rapeseed yield increment resulting from 100 kg K ha-1 application was 358 kg ha-1, an increase over the control CK （no K） of 18.0% in 2005/2006 and 2006/2007. The average internal use efficiency （IE） of K was higher in the CK treatment （21.9 kg grain, kg-1 K uptake） than in the ＋K （100 kg K ha-1） treatment （17.7 kg grain, kg-1 K uptake）. Winter rapeseed required 68.1 kg of K to produce 1 000 kg seed. The recovery efficiency of K fertilizer in rapeseed production averaged 39.3%. The K balance was negative, with an average net removal of 117.6 kg K ha-1 in the CK treatment annually, and 56.8 kg K ha-1 in the ＋K treatment. The results indicated that there was a significant negative relationship between yield increments by K application and soil available K content. Based on the relative yield of CK/＋K at 90% level, the critical level of soil available K （NH4OAc-extractable K） was 135 mg kg-1.

关键词： rapeseed (Brassica napus L.) K fertilizer K use efficiency yield critical level of soil available K

ECG quality assessment based on a kernel support vector machine and genetic algorithm with a feature matrix

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Journal of Zhejiang University-Science C(Computers and Electronics) 2014年第7期15卷 564-573页

作者： Ya-tao ZHANG Cheng-yu LIU Shou-shui wei Chang-zhi wei Fei-fei LIU School of Control Science and Engineering Shandong University School of Mechanical Electrical & Information Engineering Shandong University Institute of Cellular Medicine Newcastle University

We propose a systematic ECG quality classification method based on a kernel support vector machine(KSVM) and genetic algorithm(GA) to determine whether ECGs collected via mobile phone are acceptable or not. This method includes mainly three modules, i.e., lead-fall detection, feature extraction, and intelligent classification. First, lead-fall detection is executed to make the initial classification. Then the power spectrum, baseline drifts, amplitude difference, and other time-domain features for ECGs are analyzed and quantified to form the feature matrix. Finally, the feature matrix is assessed using KSVM and GA to determine the ECG quality classification results. A Gaussian radial basis function(GRBF) is employed as the kernel function of KSVM and its performance is compared with that of the Mexican hat wavelet function(MHWF). GA is used to determine the optimal parameters of the KSVM classifier and its performance is compared with that of the grid search(GS) method. The performance of the proposed method was tested on a database from PhysioNet/Computing in Cardiology Challenge 2011, which includes 1500 12-lead ECG recordings. True positive(TP), false positive(FP), and classification accuracy were used as the assessment indices. For training database set A(1000 recordings), the optimal results were obtained using the combination of lead-fall, GA, and GRBF methods, and the corresponding results were: TP 92.89%, FP 5.68%, and classification accuracy 94.00%. For test database set B(500 recordings), the optimal results were also obtained using the combination of lead-fall, GA, and GRBF methods, and the classification accuracy was 91.80%.

关键词： ECG quality assessment Kernel support vector machine Genetic algorithm Power spectrum Cross validation

Overexpression of the OsPDCD5 Gene Induces Programmed Cell Death in Rice

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Journal of Integrative Plant Biology 2005年第9期47卷 1115-1122页

作者： Kotb ATRIA Ke-Gui LI Chun wei Guang-Ming HE wei SU Jin-shui YANG Institute of Genetics School of Life Sciences Fudan University Shanghai 200433 China

The primary aim of the present study was to investigate the overexpression of the rice （Oryza sativa L.） programmed cell death 5 （OsPDCD5） gene in rice plant. Constitutive expression of OsPDCD5 from the cauliflower mosaic virus （CaMV） 35S promoter induced programmed cell death （PCD） in transgenic rice. Programmed cell death was accompanied by typical features, including inhibition of developmental growth, a reduction of fresh weight, degradation of total protein content, and fragmentation of genomic DNA. These results suggest that OsPDCD5 plays an essential role in the regulation of PCD in rice plants.

关键词： gene transformation Oryza sativa rice programmed cell death 5 (OsPDCD5) gene programmed cell death.

3D导航下机器人辅助经皮通道螺钉治疗骨盆骨折的临床疗效分析

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创伤外科杂志 2024年第7期26卷 506-511页

作者：陈忠尧罗刚杜兴赵维康税巍重庆医科大学附属第一医院骨科重庆400016

目的探讨3D导航下机器人辅助经皮置入骨盆通道螺钉治疗不稳定性骨盆骨折的临床疗效。方法回顾性分析2023年2月—10月重庆医科大学附属第一医院骨科采用3D导航下机器人辅助经皮置入骨盆通道螺钉技术治疗不稳定性骨盆骨折患者9例。男性4... 详细信息

目的探讨3D导航下机器人辅助经皮置入骨盆通道螺钉治疗不稳定性骨盆骨折的临床疗效。方法回顾性分析2023年2月—10月重庆医科大学附属第一医院骨科采用3D导航下机器人辅助经皮置入骨盆通道螺钉技术治疗不稳定性骨盆骨折患者9例。男性4例,女性5例;年龄16~73岁,平均41.6岁;其中道路交通伤4例,高处坠落伤4例,砸伤1例;骨盆骨折Tile分型:B2.2型4例,B3.2型5例。记录手术时间、术中出血量、术中及术后并发症情况,评估骨折复位效果及术后骨盆功能恢复情况。结果本组术中共置入20枚螺钉,平均2.2枚;置钉通道规划时间22~30min,平均25.8min;螺钉置入时间2~3min,平均2.6min;手术时间32~46min,平均37.2min。无一例进行导针调整,每枚导针置入透视次数3~7次,平均5.5次。术中出血量5~10 mL,平均8.9mL;本组患者术后均未见血管神经损伤等并发症发生。术后根据Matta骨折复位标准评价示骨盆通道螺钉置入位置均为优。结论 3D导航下机器人辅助经皮置入骨盆通道螺钉技术螺钉置入的效率及准确性高,手术操作精细且微创,术中射线暴露的时间短、手术创伤小、术后并发症少。在处理骨盆环损伤的治疗中该技术存在潜在优势。

关键词：骨盆骨折骨盆环损伤不稳定骨折机器人辅助 3D导航

Ecological sustainability assessment of the carbon footprint in Fujian Province,southeast China

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Frontiers of Earth Science 2021年第1期15卷 12-22页

作者： Jingyu ZENG Rongrong ZHANG Jia TANG Jingchen LIANG Jinghan LI Yue ZENG Yefan LI Qing ZHANG wei shui Qianfeng WANG Fujian Provincial Key Laboratory of Remote Sensing of Soil Erosion and Disaster Protection/College of Environment and Resource Fuzhou UniversityFuzhou 350116China Key Laboratory of Spatial Data Mining&Information Sharing(Ministry of Education of China) Fuzhou 350116China Joint Global Change Research Institute Pacific Northwest National Laboratory and University of MarylandCollege ParkMD 20740USA Key Laboratory of Digital Earth Science Institute of Remote Sensing and Digital EarthChinese Academy of SciencesBeijing 100094China College of Geography and Tourism Anhui Normal UniversityWuhu 241000China

China’s rapid economic development has initiated the deterioration of its ecological environment,posing a threat to the sustainable development of human *** a result,an assessment of regional sustainability is *** paper researches China’s most forested province,Fujian Province,as the study *** proposed a grid-based approach to assess the regional carbon footprint in accordance with the Intergovernmental Panel on Climate Change’s(IPCC)carbon emission *** method of assessment also introduced carbon emission indicators with our improved and published Net Primary Production(NPP)based on process *** carbon footprint in Fujian Province from 2005-2017 was calculated and examined from a spatiotemporal *** indicators were used in the sustainability *** research draws the following conclusions:1)the carbon footprint in the eastern regions of Fujian Province was higher due to rapid economic development;2)that of the western regions was lower;3)an uptrend in the carbon footprint of Fujian Province was *** five ecological indicators based on carbon emissions and economic and social data showed an ecologically unsustainable trend over 13 years in the research area due to unsustainable economic ***,it is urgent to balance the relationship between economic development and environmental *** research provides scientific references for achieving ecological civilization and sustainability in a similar region.

关键词： Fujian Province carbon emission carbon footprint ecological index sustainable development

The first high spatial resolution multi-scale daily SPI and SPEI raster dataset for drought monitoring and evaluating over China from 1979 to 2018

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Big Earth Data 2023年第3期7卷 860-885页

作者： Rongrong Zhang Virgílio A.Bento Junyu Qi Feng Xu Jianjun Wu Jianxiu Qiu Jianwei Li wei shui Qianfeng Wang Fujian Provincial Key Laboratory of Remote Sensing of Soil Erosion and Disaster Protection/College of Environmental&Safety Engineering Fuzhou UniversityFuzhouChina Instituto Dom Luiz Faculdade de CiênciasUniversidade de LisboaLisboaPortugal Earth System Science Interdisciplinary Center University of MarylandCollege ParkMDUSA State Key Laboratory of Earth Surface Processes and Resource Ecology/Faculty of Geographical Science Beijing Normal UniversityBeijingChina Guangdong Provincial Key Laboratory of Urbanization and Geo-simulation School of Geography and PlanningSun Yat-sen UniversityGuangzhouChina College of Physics and Information Engineering Fuzhou UniversityFuzhouChina Key Lab of Spatial Data Mining&Information Sharing Ministry of Education of ChinaFuzhouChina

Standardized Precipitation Index(SPI)and Standardized Precipitation Evapotranspiration Index(SPEI),traditionally derived at a monthly scale,are widely used drought *** overcome temporalresolution limitations,we have previously developed and published a well-validated daily SPI/SPEI in situ *** having a high temporal resolution,this in situ dataset presents low spatial resolution due to the scarcity of ***,based on the China Meteorological Forcing Dataset,which is composed of data from more than 1,000 ground-based observation sites and multiple remote sensing grid meteorological dataset,we present the first high spatiotemporal-resolution daily SPI/SPEI raster datasets over *** spans from 1979 to 2018,with a spatial resolution of 0.1°×0.1°,a temporal resolution of 1-day,and the timescales of 30-,90-,and *** show that the spatial distributions of drought event characteristics detected by the daily SPI/SPEI are consistent with the monthly SPI/*** correlation between the daily value of the 12-month scale and the monthly value of SPI/SPEI is the strongest,with linear correlation,Nash-Sutcliffe coefficient,and normalized root mean square error of 0.98,0.97,and 0.04,*** daily SPI/SPEI is shown to be more sensitive to flash drought than the monthly SPI/*** improved SPI/SPEI shows high accuracy and credibility,presenting enhanced results when compared to the monthly SPI/*** total data volume is up to 150 GB,compressed to 91 GB in Network Common Data Form(NetCDF).It can be available from Figshare(https://***/10.6084/***.c.5823533)and ScienceDB(https://***/10.57760/sciencedb.j00076.00103).

关键词： Drought index climate change climatic disaster Generalized Extreme Value

The optimization research on the coupled of active and passive energy supplying in public institutions in China

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Energy and Built Environment 2024年第2期5卷 288-299页

作者： shui Yu Xueyan Liu Jianghui Yang Fuhong Han Jiashuai wei School of Municipal and Environmental Engineering Shenyang Jianzhu UniversityShenyang 110168China

The building sector is one of the largest energy user and carbon emitters *** increase the utilization rate of renewable energy and reduce carbon dioxide emissions,the optimal technical scheme of active public institutions and coupled utilization of renewable energy is *** this study,the energy consumption of three types of public institutions in various regions of China was simulated by using DeST building energy consumption software,combined with energy conversion efficiency and data released by the National Bureau of Statistics,and the total energy demand and total energy supply of public institutions were predicted using the load density *** on the coupling mechanism of the MARKAL model,the optimal proportion of renewable energy in the energy supply of public buildings in different regions is *** the study of the number of public institutions in various regions of China,energy consumption characteristics,construction area,and other related data,the reverse energy flow method is creatively proposed,and the active and renewable energy coupling algorithm from the energy demand side of public institutions to the energy supply side is *** results show that the central region has the highest utilization rate of renewable energy in the public sector,reaching 36.18%.The use of renewable energy in public buildings in hot summer and warm winter zones decreased to 35.08%,and it was 12.82% in cold *** 2025,the proportion of renewable energy resources in China is expected to reach 29.2%.The energy coupling model and algorithm constructed in this paper can provide a basis for the coupling macro configuration of renewable energy in public institutions in China.

关键词： Public institutions Energy demand Energy supply Active and renewable energy coupling ratio Energy conversion efficiency

Anti-proliferation effect of zoledronic acid on human colon cancer line SW480

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Asian Pacific Journal of Tropical Medicine 2016年第2期9卷 164-168页

作者： Fu-Shi Han Mou-Bin Lin Hui-Yuan Zhu Ying-Qun Chen wei shui Jin-Ming Xu Department of Medical Imaging Affiliated Yangpu Hospital of Tongji University Department of General Surgery Affiliated Yangpu Hospital of Tongji University Tongji University School of Medicine Department of Traditional Chinese Medicine Affiliated Yangpu Hospital of Tongji University

Objective: To investigate the anti-proliferation effect and mechanism of zoledronic acid(ZOL) on human colon cancer line SW480. Methods: SW480 cells were treated with 0, 12.5, 25, 50, 100 and 200 μmo L/L of ZOL for 48 h, and CCK-8 assay was employed to obtain the survival rate of SW480 cells. SW480 cells were treated with 25 μmo L/L of ZOL for 0, 12, 24, 48 and 72 h, and then the survival rate was obtained. SW480 cells of the ZOL group were treated with 25 μmo L/L of ZOL for 48 h, while cells of the Cs A+ZOL group were pretreated with 10 μmo L/L of Cs A for 0.5 h and then treated with 25 μmo L/L of ZOL for 48 h. Then the survival rates of SW480 cells of the control group, ZOL group and Cs A+ZOL group were determined. Flow cytometry was employed to detect the apoptosis rate and the mitochondrial transmembrane potential(△ψm) of the three groups and Western blot was used to detect the expressions of cyt C in the cytosol of the three groups. Results: ZOL inhibited the proliferation of SW480 cells, and the inhibition rate positively correlated with the concentration of ZOL and the action time(P< 0.01). The cell survival rate and the △ψm of the ZOL group were greatly lower than those of the control group, while the apoptosis rate and the expression of cyt C in the cytosol were obviously higher than those of the control group. All the differences showed distinctly statistical significances(P< 0.01). The cell survival rate and the △ψm of the Cs A+ZOL group were all lower than those of the control group, but substantially higher than those of the ZOL group; while the apoptosis rate and the expression of cyt C in the cytosol were higher than those of the control group, but distinctly lower than those of the ZOL group. All the differences were statistically significant(P < 0.01). Conclusions: ZOL can induce the apoptosis in human colon cancer line SW480 and then inhibit the proliferation of SW480 cells directly by opening the mitochondrial permeability transition pore abnormal

关键词： Zoledronic acid Colorectal cancer Human colon cancer line SW480 Apoptosis Mitochondria