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A digital lightning prototype system: DLPS/HUST

International Journal of Digital Earth 2013年第S2期6卷 155-171页

作者： shengmei yang Qiuwen Zhang Yongzhi Zhang Wenguang Wei Tingting Shi Key Lab of Digital Watershed Science and Technology of Hubei Province Huazhong University of Science and TechnologyWuhanChina The Photogrammetry and Remote Sensing Institute of Hubei Province WuhanChina

Digital lightning is an important thematic branch of the digital earth.Lightning data are complex,momentary,discrete,dynamic and spatio-temporal in nature.Hence,making great progress in their management,analysis and service is challenging.Many studies have been directed towards this field all over the world.Some different relevant systems are currently available.However,most of them focus on a single or a few aspects of lightning applications,rather than taking an overall account of lightning detection,management,analysis and service from the strategic perspective of the digital earth.Lightning disaster also demands a better developed spatial information technology in this field than at present.The idea of the digital earth offers a reasonable scheme to address these issues.Based on reviews of the concept,development and progress of the digital earth,an integrated technical framework of a digital lightning prototype system(DLPS)is proposed,including its data,functions and implementation of subsystems,which aims at the facilitation,management,accessing,visualisation,application,release and sharing of lightning data.Some key technologies are also carefully discussed to facilitate the construction of the DLPS.This framework could provide a helpful guide to future lightning research and hazard mitigation,as well as enrich connotation on the digital earth.So far,there are still many difficulties in multilevel grid construction that need to be solved.

关键词： digital lightning digital earth prototype system lightning spatial database lightning geographic information system lightning spatial information grid

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Effects of maternal stress induced by predator odors during gestation on behavioral and physiological responses of offspring in Brandt’s vole(Lasiopodomys brandtii)

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Integrative Zoology 2018年第6期13卷 723-734页

作者： Chen GU Wenjia WANG Xiaoqian DING shengmei yang Aiqin WANG Baofa YIN Wanhong WEI Department of Animal Behavior College of Bioscience and BiotechnologyYangzhou UniversityYangzhouChina

Maternal effects play a crucial role in regulating populations of small mammals and anti-predator behaviors of offspring.The present study investigated the effects of maternal stress induced by exposure to predator odors during gestation on the behavioral and physiological responses of offspring in Brandt’s vole(Lasiopodomys brandtii).Effects included changes in growth,behaviors,hormone levels in serum,and fosB/ΔfosB mRNA and FosB/ΔFosB protein expression in the hypothalamus.Our results showed that when pregnant voles were exposed to cat and rabbit urine odors for 18 days(1 h/day),the weight of the female offspring decreased;however,the thymus and ovary indices increased,compared with the control group.Male offspring of voles exposed to cat odor spent more time exploring and foraging,and showed a decrease in corticosterone(CORT)compared with voles in the control group.Both fosB/ΔfosB mRNA and FosB/ΔFosB protein expressions were downregulated in the hypothalamus of male offspring in the cat odor-exposed group compared to that in offspring in the control group.However,the mRNA levels of fosB/ΔfosB in the hypothalamus of female offspring did not decrease in response to cat urine odor.Our findings suggested that maternal stress induced by predator odors during gestation restrained the growth of female offspring and increased the duration of exploring and foraging behaviors of male offspring by regulating the HPA axis,which,in turn,reduced the sensitivity of offspring to unfamiliar environments and increased their probability of becoming prey.

关键词： behaviors Brandt’s voles cat urine odor FosB/ΔFosB maternal effect

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Antibacterial properties of extracts of Solidago canadensis and their potential use as dietary supplements in red swamp crayfish(Procambarus clarkii)

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Frontiers of Agricultural Science and Engineering 2015年第4期2卷 327-334页

作者： Manhong YE Lei ZHANG Jiaqi GE Haifeng SUN Jingjing NI shengmei yang Wanhong WEI College of Bioscience and Biotechnology Yangzhou UniversityYangzhou 225000China Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses Yangzhou UniversityYangzhou 225000China

Canadian goldenrod(Solidago canadensis)is one of the most destructive invasive weeds in Southeastern China.To evaluate its potential application as dietary supplement in red swamp crayfish(Procambarus clarkii),the antibacterial properties of aqueous and ethanol extracts of this plant against three major pathogenic bacteria in crayfish aquaculture were examined.Inhibition zone tests and determination of minimum inhibitory concentration revealed that the extracts had lower antibacterial activity than extracts from two traditional medicinal plants that possess antibacterial properties,garlic(Allium sativum)and cortex phellodendri(Phellodendron chinense).However,they did exhibit greater antibacterial effects than extracts from another widely used medicinal plant,Sophora flavescens,and an aquatic weed,Alternanthera philoxeroides.Aqueous extracts of Canadian goldenrod gave greater inhibition than the ethanol extracts.Crayfish fed a diet with 2%these aqueous extracts exhibited significantly higher enzyme activity of alkaline phosphatase,catalase and phenoloxidase(P<0.05).Based on the results of this study,we conclude that aqueous extracts of Canadian goldenrod are highly promising for the development of new dietary supplement for use in crayfish aquaculture.

关键词： antibacterial activity Canadian goldenrod antioxidant enzyme crayfish

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乡村振兴视角下乡村产业经营模式研究——基于N市典型村庄的考察

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西昌学院学报（社会科学版） 2024年第1期36卷 34-44页

作者：杜华勇何佳珈杨胜美西华师范大学管理学院西华师范大学计划财务处

合理进行乡村产业布局,选择适配的产业经营模式,是推动乡村振兴战略取得成效的重要方式。本文立足乡村振兴视角下的乡村产业经营,基于N市典型村庄的产业经营实践,归纳出项目招引型、业主带动型、资源改造型和党建引领型四种典型产业经... 详细信息

合理进行乡村产业布局,选择适配的产业经营模式,是推动乡村振兴战略取得成效的重要方式。本文立足乡村振兴视角下的乡村产业经营,基于N市典型村庄的产业经营实践,归纳出项目招引型、业主带动型、资源改造型和党建引领型四种典型产业经营模式,并从区位优势和资源优势两方面分析不同经营模式的适配情境。研究发现,强区位优势和强资源优势的乡村适合采用项目招引型产业经营模式,强区位优势和弱资源优势的乡村适合采用业主带动型产业经营模式,弱区位优势和强资源优势的乡村适合采用资源改造型产业经营模式,弱区位优势和弱资源优势的乡村适合采用党建引领型产业经营模式。

关键词：乡村振兴产业经营路径选择模式适配

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覆膜和施化肥对土壤有机碳含量及玉米、大豆产量的影响

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山地农业生物学报 2024年第2期43卷 78-84页

作者：刘洋龙大勇赵娜杨胜美王小利何进魏晓贵州大学农学院贵州贵阳550025

以贵州安顺大田试验为依托,设置4个处理:不覆膜不施肥(non-F+CK)、不覆膜施肥(non-F+NP)、覆膜不施肥(F+CK)和覆膜施肥(F+NP),探究覆膜和施肥对土壤有机碳和玉米、大豆产量的影响,为贵州农田土壤固碳培肥和作物产量提升提供理论依据。... 详细信息

以贵州安顺大田试验为依托,设置4个处理:不覆膜不施肥(non-F+CK)、不覆膜施肥(non-F+NP)、覆膜不施肥(F+CK)和覆膜施肥(F+NP),探究覆膜和施肥对土壤有机碳和玉米、大豆产量的影响,为贵州农田土壤固碳培肥和作物产量提升提供理论依据。结果表明:覆膜或施肥对土壤有机碳(SOC)影响不显著;施肥和不施肥条件下覆膜后土壤微生物生物量碳(MBC)含量分别降低了9.1%和10.2%,施肥使土壤MBC显著增加了8.2%~32.5%;施肥对土壤全氮(TN)的增加幅度在2.9%~76.5%之间,施肥和不施肥条件下覆膜处理的TN分别降低了11.4%(P<0.05)和4.4%;与non-F+NP相比,F+NP处理玉米大豆分别增产10.4%和28.6%;SOC与土壤MBC和TN呈正相关,MBC与TN呈显著正相关关系,与C/N呈负相关,玉米和大豆产量均与MBC呈显著正相关。综上,覆膜不利于SOC和MBC含量的增加,施肥则相反,将覆膜与施肥相结合可增加玉米和大豆产量。

关键词：覆膜施肥土壤有机碳土壤微生物生物量碳产量

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Analysis of Differences in Biochemical Components Between Yunnan and Kenya Tea Tree Varieties

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Agricultural Biotechnology 2020年第4期9卷 36-40页

作者： shengmei yang Youyong LI Zhifen DUAN Yunxiu BAO Weiqiong SHANG Benying LIU Yichun TANG Tea Research Institute Yunnan Academy of Agricultural Sciences/Yunnan Provincial Key Laboratory of Tea ScienceMenghai 666200China

With 16 Yunnan tea tree varieties and 5 Kenya tea tree varieties as test materials,the differences in biochemical components between Yunnan and Kenya tea tree varieties were compared and analyzed.The results showed that the coefficients of variation of tea polyphenols,amino acids,caffeine,water extract,gallic acid(GA),catechin(C),epicatechin(EC),epicatechin gallate(ECG),epigallocatechin(EGC),epigallocatechin gallate(EGCG)and total catechins in Yunnan tea tree varieties were greater than those in Kenyan tea trees.The contents of tea polyphenols,amino acids,caffeine,water extract,C,EC,EGC,EGCG and total catechins in Yunnan tea tree varieties had no significant differences from those in Kenyan tea trees varieties(P>0.05),while there were significant differences in the contents of GA and ECG between Yunnan tea tree varieties and Kenya tea tree varieties(P<0.05).Therefore,it could be predicted that GA and ECG might be one of the main characteristics of the differences in biochemical components between Yunnan tea tree varieties and Kenyan tea tree varieties.The cluster analysis results showed that when the genetic distance was 15,the 21 tested tea varieties could be divided into three groups with obvious biochemical differences.

关键词： Yunnan Kenya Tea varieties Biochemical components Cluster analysis Genetic distance

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Spider venom peptides targeting on a novel α2δ-1–NMDA receptor coupling in neuropathic pain

Spider venom peptides targeting on a novel α2δ-1–NMDA rec...

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中国生物化学与分子生物学会第十二届全国会员代表大会暨2...

作者： Yiying Ding shengmei yang Fang Qu Hui-Lin Pan Jinjun Chen College of Bioscience and Biotechnology Hunan Agricultural University

Spiders are traditional medicine used for the treatment of chronic pain,but the molecular mechanism involved is not clear.Spiders use their venom to rapidly paralyze their prey through targeting their prey’s nervous system efficiently and specifically.Studying spider toxin peptides has received much attention in the pain field in recent years.However,previous work is mainly focused on the pore-forming subunits of the channels,which often produce intolerable side effects.α2δ-1 was previously considered as a subunit of voltage-gated calcium channels and is up-regulated in primary sensory neurons and spinal cord dorsal horn neurons in peripheral nerve injury-induced chronic pain.α2δ-1 is also the target of gabapentin and pregabalin,which are commonly used analgesics for treating neuropathic pain.We identified that a novel α2δ-1–NMDA receptor coupling is critically involved in neuropathic pain and gabapentin action.We study the spider venom peptides targeting on α2δ-1 by using membrane system yeast two-hybrid and pull-down,dual high-throughput screening,which can then be applied to study the functions in the cells and animal models to determine their molecular mechanisms in treating neuropathic pain.We put forward an innovative project to study the molecular basis of spider toxins pertinent to their analgesic effects,based on the studies of spider venom peptidomics and the mechanism of α2δ-1 in neuropathic pain by our team.The present study is expected to discover new research tools that can be used for studying the mechanism of acute and chronic pain and may develop novel drug leads for treating various painful conditions.

关键词： Spider venom Neuropathic pain Accessory subunit CACNA2D1 NMDA receptor

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“三权分置”背景下农户宅基地流转的福利效应研究:基于江苏省13市的调研

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中国软科学 2023年第10期 177-189页

作者：李涛杨盛梅张鹏南京审计大学经济学院江苏南京211815 南京农业大学公共管理学院江苏南京210095

中国宅基地的流转正经历快速的发展。在“三权分置”的背景下,探索宅基地流转前后农户家庭福利水平的变化及其影响因素。运用调查法、实证研究法、定性分析法研究发现,在推进农村宅基地流转的过程中,要充分尊重农户意愿、了解农民诉求... 详细信息

中国宅基地的流转正经历快速的发展。在“三权分置”的背景下,探索宅基地流转前后农户家庭福利水平的变化及其影响因素。运用调查法、实证研究法、定性分析法研究发现,在推进农村宅基地流转的过程中,要充分尊重农户意愿、了解农民诉求、考虑各地经济发展差异。

关键词：土地管理宅基地流转模糊综合评价福利效应

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2021年呼和浩特市大气PM_(2.5)中多环芳烃污染特征及健康风险评价

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实用预防医学 2024年第6期31卷 650-656页

作者：李欢杨升美高昇张卿张晨光郑莉韬岳宣志武多多张雯宇贾芯芮蒲云霞范耀春内蒙古医科大学内蒙古呼和浩特010059 内蒙古自治区综合疾病预防控制中心内蒙古呼和浩特010070 内蒙古科技大学包头医学院内蒙古包头014040 内蒙古自治区个体化用药工程技术研究中心内蒙古通辽028000

目的了解2021年呼和浩特市回民区、赛罕区大气细颗粒物(fine particulate matter,PM_(2.5))中多环芳烃(polycyclic aromatic hydrocarbons,PAHs)的污染及分布特征,评估其经呼吸途径对人群健康造成的风险。方法于2021年每月10—16日,在... 详细信息

目的了解2021年呼和浩特市回民区、赛罕区大气细颗粒物(fine particulate matter,PM_(2.5))中多环芳烃(polycyclic aromatic hydrocarbons,PAHs)的污染及分布特征,评估其经呼吸途径对人群健康造成的风险。方法于2021年每月10—16日,在两城区监测点采集大气PM_(2.5),采用高效液相色谱法测定其中16种PAHs质量浓度,利用毒性当量质量浓度评估PAHs增量终生致癌风险,并对其中有经吸入途径毒理学参数的PAHs开展非致癌和致癌性健康风险评估。结果两区PM_(2.5)质量浓度差异无统计学意义,PAHs质量浓度冬季>春季>秋季>夏季,在冬春季两城区占比最高的均为4环PAHs,主要来源为燃煤、交通排放以及生物质燃烧。全市PHAs增量终生致癌风险值男性为2.47×10^(-6),女性为2.26×10^(-6)。苯并[b]荧蒽、苯并[a]芘、二苯并[a,h]蒽、茚并[1,2,3-cd]芘在冬季和全年时致癌风险值为1.0×10^(-6)~1.0×10^(-4),处于人群可接受范围内,存在潜在致癌风险,男性致癌风险均大于女性。秋季与冬季苯并[a]芘非致癌风险值分别为1.28、2.10,但全年非致癌风险<1。2021年呼和浩特市PM_(2.5)中PAHs致男性预期寿命损失14.44 min,女性15.10 min。结论2021年呼和浩特市两城区大气PM_(2.5)中PAHs具有季节性差异,且对人群存在潜在致癌风险,冬季时苯并[a]芘存在非致癌风险。

关键词：细颗粒物多环芳烃污染健康风险

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融合降雨随机变量的洪水频率分布估计方法研究

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水利学报 2023年第1期54卷 45-53页

作者：江聪熊立华黄俊哲杨胜梅中国地质大学(武汉)环境学院湖北武汉430074 武汉大学水资源与水电工程科学国家重点实验室湖北武汉430072 长江水利委员会长江科学院湖北武汉430010

降雨作为一种与洪水存在物理相关性的随机变量,可扩展洪水频率分布估计的信息量。在层次模型的框架下,提出了一种融合降雨随机变量的洪水频率分布推导方法,在构建降雨变量频率分布以及洪水对降雨条件概率分布的基础上,由全概率公式推导... 详细信息

降雨作为一种与洪水存在物理相关性的随机变量,可扩展洪水频率分布估计的信息量。在层次模型的框架下,提出了一种融合降雨随机变量的洪水频率分布推导方法,在构建降雨变量频率分布以及洪水对降雨条件概率分布的基础上,由全概率公式推导出洪水变量的频率分布。选取浙江省兰江流域年最大洪峰流量作为研究实例,引入流域年最大15天前期影响雨量作为洪水变量的相依性变量,结果表明融合降雨变量的洪水频率分布具有较好的拟合效果。通过随机抽样统计实验发现,在降雨样本长于洪水样本的情况下,本文提出的层次模型能够充分利用长系列降雨信息,同时考虑了其他随机因素对洪水频率分布的影响,相较于直接由皮尔逊Ⅲ型分布拟合实测洪水样本的方法以及插补延长法,一定程度上可以提高洪水频率分布的估计精度,减小抽样误差导致的水文设计值不确定性。

关键词：洪水频率层次模型广义回归模型前期影响雨量兰江流域

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