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Deep neural network for remote-sensing image interpretation: status and perspectives

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National Science Review 2019年第6期6卷 1082-1086页

作者： Jiayi Li Xin Huang jianya Gong School of Remote Sensing and Information Engineering Wuhan University State Key Laboratory of Information Engineering in Surveying Mapping and Remote SensingWuhan University

Deep neural networks(DNNs) refer to end-to-end mappings(i.e. from data to information) by stacking a large number of filters learned from massive samples. By courtesy of the comprehensive Earth observation platforms and convenient data access, remote-sensing practitioners are dealing with very large and ever-growing data volumes, which call for fast and transferrable machine-learning

关键词： status and perspectives image Deep neural network for remote-sensing image interpretation

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黄脊竹蝗产卵偏好生境因子分析

生态学杂志 2024年第5期43卷 1367-1372页

作者：李志红滕莹王坚娅舒金平王浩杰张威中国林业科学研究院亚热带林业研究所杭州311400 南京林业大学南京210037 浙江省杭州市富阳区农业林业资源保护中心杭州311400 浙江省仙居县林业技术推广总站浙江台州317300

黄脊竹蝗(Ceracris kiangsu)是我国南方竹区危害较大的竹子害虫之一,分析影响黄脊竹蝗产卵选择和产卵量的相关生境因子,为黄脊竹蝗的综合防治提供理论基础。在黄脊竹蝗暴发区选取产卵地与非产卵地,通过测定土壤因子(土壤含水率、营养元... 详细信息

黄脊竹蝗(Ceracris kiangsu)是我国南方竹区危害较大的竹子害虫之一,分析影响黄脊竹蝗产卵选择和产卵量的相关生境因子,为黄脊竹蝗的综合防治提供理论基础。在黄脊竹蝗暴发区选取产卵地与非产卵地,通过测定土壤因子(土壤含水率、营养元素)、林分因子(新竹数量、老竹数量、竹林盖度、植被盖度)以及立地因子(天窗面积、坡向、海拔等),通过对比分析研判影响竹蝗产卵选择的生境因子,同时统计不同产卵地竹蝗卵块数,明确影响黄脊竹蝗产卵量的关键因子。黄脊竹蝗偏好将卵产于向阳的南坡中下部,竹林天窗存在有利于黄脊竹蝗产卵。产卵地与非产卵地在海拔上无显著性差异(P>0.05);产卵地与非产卵地在新老竹比例、竹林盖度、全磷、钾、土壤含水率上存在显著性差异(P<0.05);Pearson相关性分析显示,竹子数量及土壤含水率与卵块数存在高度相关,海拔与卵块数存在负相关。新老竹比例、土壤含水率是影响黄脊竹蝗选择产卵地偏好的主要因子,竹子数量、土壤含水量是影响产卵量的关键因子。

关键词：黄脊竹蝗产卵偏好土壤因子林分因子立地因子相关性

A virtual globe-based vector data model:quaternary quadrangle vector tile model

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International Journal of Digital Earth 2016年第3期9卷 230-251页

作者： Mengyun Zhou Jing Chen jianya Gong State Key Laboratory of Information Engineering in Surveying Mapping and Remote SensingWuhan UniversityWuhanPR China

This study proposes a virtual globe-based vector data model named the quaternary quadrangle vector tile model(QQVTM)in order to better manage,visualize,and analyze massive amounts of global multi-scale vector *** model integrates the quaternary quadrangle mesh(a discrete global grid system)and global image,terrain,and vector data.A QQVTM-based organization method is presented to organize global multi-scale vector data,including linear and polygonal vector *** addition,tilebased reconstruction algorithms are designed to search and stitch the vector fragments scattered in tiles to reconstruct and store the entire vector geometries to support vector query and 3D analysis of global *** organized vector data are in turn visualized and queried using a geometry-based *** experimental results demonstrate that the QQVTM can satisfy the requirements for global vector data organization,visualization,and ***,the QQVTM performs better than unorganized 2D vectors regarding rendering efficiency and better than the latitude–longitude-based approach regarding data redundancy.

关键词： multi-resolution modeling discrete global grid system vector data organization tile-based reconstruction geometry-based rendering

Soil moisture estimation based on BeiDou Bl interference signal analysis

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Science China Earth Sciences 2016年第12期59卷 2427-2440页

作者： YAN SongHua ZHAO Fen CHEN NengCheng GONG jianya School of Electronic Information Wuhan University State Key Laboratory of Information Engineering in Surveying Mapping and Remote SensingWuhan University

BeiDou Navigation Satellite System reflectometry(BDS-R) is an emerging area of BD(BeiDou) applications that uses multipath reflected signals in microwave remote *** moisture estimation is one of the potential important applications of *** study aims to investigate the feasibility of soil moisture estimation based on BD B1 band interference signals,which are composed of direct and reflected BD signals and can be readily captured using low-cost commercial BDS *** this paper,a theoretical background for soil estimation from interference signals was introduced,and an analysis of field experimental data was ***,a cosine model for the interference signal power was built,and a non-uniform power spectrum analysis was performed on the received interference signals to determine its main ***,a least squares curve fitting was applied on the interference signal power to extract its *** relationship between the soil moisture and the phase was then *** months of experimental data were collected at BaoXie,Wuhan and analyzed for further *** results show that the phase of the interference signals increases with the increase of soil *** correlation coefficient between the phase and the in-situ soil moisture value is approximately ***,the relationship between the phase and soil moisture is employed to estimate soil *** show that using BDS-R to measure soil moisture is feasible,which demonstrates a great potential of new application of the BD system.

关键词： BDS-R Soil moisture estimation Interference signal Non-uniform power spectrum Least squares curve fitting SNR

hUCMSCs对D-半乳糖致衰老小鼠心脏保护作用

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青岛大学学报（医学版） 2018年第2期54卷 189-192,196页

作者：刘建亚冯文静牟婕安妮娜王仁萍毛拥军青岛大学附属医院老年医学科山东青岛266003 青岛大学附属医院体检中心山东青岛266003

目的探讨人脐带间充质干细胞(hUCMSCs)对D-半乳糖(D-gal)诱导的衰老小鼠的心脏保护作用及其可能的机制。方法将24只8周龄雄性C57BL/6小鼠随机分为对照组、模型组和干细胞组,每组8只。对照组颈背部皮下注射灭菌注射用水(5mL·kg^(-1)·d^... 详细信息

目的探讨人脐带间充质干细胞(hUCMSCs)对D-半乳糖(D-gal)诱导的衰老小鼠的心脏保护作用及其可能的机制。方法将24只8周龄雄性C57BL/6小鼠随机分为对照组、模型组和干细胞组,每组8只。对照组颈背部皮下注射灭菌注射用水(5mL·kg^(-1)·d^(-1))8周,模型组和干细胞组颈背部皮下注射D-gal(150 mg·kg^(-1)·d^(-1))8周,至D-gal注射第5周和第7周时,干细胞组分别尾静脉注射1×106个hUCMSCs,对照组和模型组尾静脉注射1×PBS(每只0.2mL)。采用苏木精-伊红染色观察心肌组织病理改变,Western Blot检测热休克蛋白70(HSP70)和血管内皮生长因子(VEGF)蛋白表达水平,RT-PCR检测炎症小体相关基因NOD样受体蛋白3(NLRP3)、白细胞介素18(IL-18)、白细胞介素1β(IL-1β)mRNA的表达。结果病理学检查显示,模型组出现心肌组织退行性改变,而对照组和干细胞组无相应改变。模型组心肌组织HSP70和VEGF蛋白表达较对照组显著下降,干细胞组HSP70和VEGF蛋白表达较模型组显著升高(F=9.76、43.87,P<0.05)。模型组心肌组织中炎症小体相关基因NLRP3、IL-18、IL-1βmRNA表达较对照组显著增加,干细胞组心肌组织中炎症小体相关基因表达较模型组显著下降(F=30.04~44.45,P<0.05)。结论 hUCMSCs能有效缓解D-gal诱导的心脏老化,其机制可能与促进血管新生和抑制NLRP3炎症小体通路有关。

关键词：间充质基质细胞脐带心脏衰老 NLR家族,热蛋白结构域包含蛋白3 半乳糖

DESIGN AND IMPLEMENTATION OF AN INTERNET GIS

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Geo-Spatial Information Science 2001年第2期4卷 1-7页

作者： GONG jianya LIESMARS Wuhan University

The development of Internet provides convenient environment for information searching and *** also offers a new platform for geographic information processing and *** paper discusses organization and processing approach to Internet geographic information,and provides a new method to cross_platform and distributed geographic information and its software *** example is used to show the practicality and superiority of this method.

关键词： GIS distributed Internet

环境规制下我国绿色产学研推进路径研究——基于重污染企业的数据检验

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大庆师范学院学报 2024年第2期44卷 47-53页

作者：李博吕馨宇周建亚乐山师范学院国有资产管理处四川乐山614000 昆明理工大学城市学院云南昆明650000 江苏大学管理学院江苏镇江212013

产学研是推动我国科技创新的重要手段,而绿色产学研现已成为产学研发展的主流。环境规划是绿色产学研发展的重要驱动力量,重污染企业绿色产学研可以推进我国绿色产学研的发展。基于我国重污染企业产学研的样本数据,实证性检验揭示了命... 详细信息

产学研是推动我国科技创新的重要手段,而绿色产学研现已成为产学研发展的主流。环境规划是绿色产学研发展的重要驱动力量,重污染企业绿色产学研可以推进我国绿色产学研的发展。基于我国重污染企业产学研的样本数据,实证性检验揭示了命令控制型环境规制和市场激励型环境规制对绿色产学研的驱动机理,提出绿色产学研推进路径,为我国绿色产学研发展提供理论借鉴。研究表明,在我国当前的环境规制下,绿色产学研将在如下方向大力推进:充分发挥市场激励型环境规制对绿色产学研的促进作用;加大企业在绿色产学研中的绿色参与力度;高校和科研机构应积极发挥对企业绿色行为的引导和监督作用;不能过度依赖命令控制型环境规制对绿色产学研推进的短期效应。

关键词：绿色产学研环境规制重污染企业命令控制型企业方绿色参与

Critical Factors for Personal Cloud Storage Adoption in China

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Journal of Data and Information Science 2016年第2期1卷 60-74页

作者： jianya WANG School of Businesses Tianjin University of Finance Economics School of Management Hebei University

Purpose： In order to explain and predict the adoption of personal cloud storage, this study explores the critical factors involved in the adoption of personal cloud storage and empirically validates their relationships to a user＇s ***/methodology/approach： Based on technology acceptance model（TAM）, network externality, trust, and an interview survey, this study proposes a personal cloud storage adoption model. We conducted an empirical analysis by structural equation modeling based on survey data obtained with a ***： Among the adoption factors we identified, network externality has the salient influence on a user＇s adoption intention, followed by perceived usefulness, individual innovation, perceived trust, perceived ease of use, and subjective norms. Cloud storage characteristics are the most important indirect factors, followed by awareness to personal cloud storage and perceived risk. However, although perceived risk is regarded as an important factor by other cloud computing researchers, we found that it has no significant influence. Also, subjective norms have no significant influence on perceived usefulness. This indicates that users are rational when they choose whether to adopt personal cloud *** limitations： This study ignores time and cost factors that might affect a user＇s intention to adopt personal cloud *** implications： Our findings might be helpful in designing and developing personal cloud storage products, and helpful to regulators crafting ***/value： This study is one of the first research efforts that discuss Chinese users＇ personal cloud storage adoption, which should help to further the understanding of personal cloud adoption behavior among Chinese users.

关键词： Adoption behavior Behavior intention Personal cloud storage Personalinfbrmation management Cloud computing Network externality Technology acceptancemodel (TAM) Personal innovativeness

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变电运维“两个替代”效能评价分析与提升

电力系统装备 2024年第2期 151-153页

作者：郝宝欣潘建亚陈伟国网江苏省电力有限公司江苏南京210000

立足数字经济发展、新型电力系统建设、“一体四翼”发展布局等内外部形势对变电设备运维管理提出的战略要求,深入调研“两个替代”典型做法,构建适用于面向各地市单位的“两个替代”实践效能评价体系,进一步优化“两个替代”工作布署... 详细信息

立足数字经济发展、新型电力系统建设、“一体四翼”发展布局等内外部形势对变电设备运维管理提出的战略要求,深入调研“两个替代”典型做法,构建适用于面向各地市单位的“两个替代”实践效能评价体系,进一步优化“两个替代”工作布署和提升路径,助力变电运维专业提升。

关键词：变电运维两个替代效能评价