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Geo-Spatial Information Science 2015年第1期18卷 1-10页

作者： Xiaoguang CHENG Wenli HUANG jianya GONG Nanjing Research Institute of Electronics Engineering 99 Houbiaoying RoadNanjing 210007China State Key Laboratory of Information Engineering in Surveying Mapping and Remote SensingWuhan University129 Luoyu RoadWuhan 430079China Department of Geographical Sciences University of MarylandCollege ParkMD 20742USA

Most of the current incoherent polarimetric decompositions employ coherent models to describe ground scattering;however,this cannot truly reflect the fact especially in natural ground *** paper proposes a highly adaptive decomposition with incoherent ground scattering models(ADIGSM).In ADIGSM,Neumann’s adaptive model is employed to describe volume scattering,and to explain cross-polarized power in remainder matrix,so that we can obtain orientation angle randomness for both volume scattering and the dominant ground *** computation of volume scattering parameters is strictly constrained for non-negative eigenvalues,while the volume scattering parameters that explain the most cross-polarized power are *** applying ADIGSM to NASA’s UAVSAR data,the negative component powers were obtained in quite a few forest *** with several newest decompositions,the volume scattering power is obviously lowered,especially in areas dominated by surface scattering or double bounce *** orientation angle randomness of each component is reasonable as *** has potential to be applied in the fields such as PolSAR image classification,land cover mapping,speckle filtering,soil moisture and roughness estimation,etc.

关键词： polarimetric synthetic aperture radar(PolSAR) polarimetric decomposition non-negative eigenvalue decomposition(NNED) scattering model

Geoprocessing in Cloud Computing platforms-a comparative analysis

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International Journal of Digital Earth 2013年第4期6卷 404-425页

作者： Peng Yue Hongxiu Zhou jianya Gong Lei Hu State Key Laboratory of Information Engineering in Surveying Mapping and Remote Sensing(LIESMARS)Wuhan UniversityWuhanChina

The emergence of Cloud Computing technologies brings a new information infrastructure to *** geoprocessing functions in Cloud Computing platforms can bring scalable,on-demand,and costeffective geoprocessing services to geospatial *** paper provides a comparative analysis of geoprocessing in Cloud Computing platformsMicrosoft Windows Azure and Google App *** analysis compares differences in the data storage,architecture model,and development environment based on the experience to develop geoprocessing services in the two Cloud Computing platforms;emphasizes the importance of virtualization;recommends applications of hybrid geoprocessing Clouds,and suggests an interoperable solution on geoprocessing Cloud *** comparison allows one to selectively utilize Cloud Computing platforms or hybrid Cloud pattern,once it is understood that the current development of geoprocessing Cloud services is restricted to specific Cloud Computing platforms with certain kinds of *** performance evaluation is also performed over geoprocessing services deployed in public Cloud *** tested services are developed using geoprocessing algorithms from different vendors,GeoSurf and Java Topology *** evaluation results provide a valuable reference on providing elastic and cost-effective geoprocessing Cloud services.

关键词： geoprocessing Cloud computing geospatial service GIS Microsoft Azure Google App Engine

Terrain radiometric calibration of airborne UAVSAR for forested area

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Geo-Spatial Information Science 2012年第4期15卷 229-240页

作者： CHENG Xiaoguang Naiara PINTO GONG jianya State Key Laboratory of Information Engineering in Surveying Mapping and Remote SensingWuhan University129 Luoyu RoadWuhan 430079China Department of Geographical Sciences University of MarylandCollege ParkMD 20770USA NASA/Caltech Jet Propulsion Laboratory PasadenaCAUSA

In the field of biomass estimation,terrain radiometric calibration of airborne polarimetric SAR data for forested areas is an urgent *** area correction ofσ-naught could not completely remove terrain *** by Small and Shimada,this paper tested gamma-naught on one mountainous forested area using airborne Uninhabited Aerial Vehicle Synthetic Aperture Radar data and found it could remove most terrain ***,a systematic increasing trend from far range to near range is found in airborne SAR *** paper made an attempt to use the relationship between distance to SAR sensor andγ-naught to calibrateγ-*** quantitative evaluation methods are *** results demonstrate that variation ofγ-naught can be constrained to a limited extent from near range to far *** this method is based on ground range images,it avoids complicated orthorectification.

关键词： terrain radiometric calibration UAVSAR sigma-naught γ-naught

地球化学元素分析在判别沉积环境中的应用——以开平向斜二叠系含煤地层为例

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中国煤炭地质 2024年第9期36卷 15-20,25页

作者：张健雅于海成张华河北省煤田地质勘查院河北邢台054000

沉积地层中的地球化学元素特征对沉积古环境分析具有良好的指示作用。以开平向斜二叠系含煤地层沉积环境分析为目标,基于泥页岩样品中主、微量元素,系统研究物源特征、古气候、古盐度、古生产力及古氧化还原条件,包括Zr/Al、Ti/Al、古... 详细信息

沉积地层中的地球化学元素特征对沉积古环境分析具有良好的指示作用。以开平向斜二叠系含煤地层沉积环境分析为目标,基于泥页岩样品中主、微量元素,系统研究物源特征、古气候、古盐度、古生产力及古氧化还原条件,包括Zr/Al、Ti/Al、古气候指数C、Sr/Ba、P/Ti、U/Th、MoEF、UEF、V/(V+Ni)等指标,探讨沉积古地理环境。结果表明:赵各庄组为碳酸盐岩台地、潮坪、泥炭沼泽以及潟湖相沉积,大苗庄组为三角洲沉积体系;构造背景为大陆岛弧和活动—被动大陆弧边缘区域。砂岩和泥页岩的交替表明,具有频繁的海水振荡特征,水动力条件频繁变化,整体上处于富氧状态、半潮湿气候、半咸水环境,有机质在较低的古生产力期间积累。

关键词：二叠系沉积环境微量元素开平向斜

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Geoinformatics education in China

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Geo-Spatial Information Science 2014年第4期17卷 208-218页

作者： Deren LI jianya GONG Peng YUE State Key Laboratory of Information Engineering in Surveying Mapping and Remote Sensing(LIESMARS)Wuhan UniversityWuhan 430079China

The paper gives an overview of the current status of education in geoinformatics in ***,the paper provides a brief introduction to the history of geoinformatics education in China and a general review of the scientific and technological *** then presents how the development affects the education and training in *** the paper,universities and institutes in China that can award academic degrees related to geoinformatics are summarized,and undergraduate majors are briefly ***,the paper reports the work having been done by the national expert group on Surveying and Mapping,including the revision of discipline catalog and guide for graduate education and requirements.A list of typical curricula in geoinformatics education is *** on promoting the graduate student exchange platform are ***,a case study of geoinformatics education in Wuhan University is discussed.

关键词： geoinformatics Surveying and Mapping remote sensing science and technology geographical information science(GIS) education and training China

A robust and rapid algorithm for generating and transmitting multi-resolution three-dimensional models

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Chinese Science Bulletin 2006年第8期51卷 987-993页

作者： YANG Bisheng LI Qingquan GONG jianya State Key Laboratory of Information Engineering in Surveying Mappingand Remote Sensing Wuhan University Wuhan 430079 China

Recent advances in 3D spatial data capture, such as high resolution satellite images and laser scanning as well as corresponding data proc- essing and modeling technologies, have led to the generation of large amounts of datasets on terrains, buildings, roads and other features. The rapid trans- mission and visualization of 3D models has become a ‘bottleneck’ of internet-based applications. This paper proposes a robust algorithm to generate multi-resolution models for rapid visualization and network transmission of 3D models. Experiments were undertaken to evaluate the performance of the proposed algorithm. Experimental results demon- strate that the proposed algorithm achieves good performance in terms of running speed, accuracy, encoding of multi-resolution models, and network transmission.

关键词：网络传输三维模型遗传算法可视化

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肉鸡源产气荚膜梭菌的分离鉴定及耐药性分析

中国畜牧兽医 2024年第3期51卷 1298-1307页

作者：黄紫贝罗健雅赵以恒李蒙苏思元赵振华刘文博扬州大学兽医学院扬州225009 江苏省家禽科学研究所扬州225125 江苏省动物重要疫病与人兽共患病防控协同创新中心扬州225009

【目的】对江苏某大型白羽肉鸡场疑似产气荚膜梭菌感染造成大规模死亡的病例进行确诊。【方法】无菌采集病死鸡肝脏、脾脏、肺脏、肾脏及肠道等病变组织,通过厌氧培养进行细菌分离和纯化,革兰染色镜检对分离菌株进行初步鉴定,通过16S r... 详细信息

【目的】对江苏某大型白羽肉鸡场疑似产气荚膜梭菌感染造成大规模死亡的病例进行确诊。【方法】无菌采集病死鸡肝脏、脾脏、肺脏、肾脏及肠道等病变组织,通过厌氧培养进行细菌分离和纯化,革兰染色镜检对分离菌株进行初步鉴定,通过16S rRNA基因序列分析确定属和演化关系,通过PCR扩增毒素基因确定分离株毒素型,通过动物致病性试验和药敏试验,确定其致病性和耐药表型并检测耐药基因。【结果】从4只病死鸡不同脏器中分离到了9株疑似菌,分离菌在产气荚膜梭菌鉴定培养基上呈黑色,16S rRNA分析得出9株分离菌与产气荚膜梭菌相似性最高可达99.60%。16S rRNA基因系统进化树显示,4株分离株与巴基斯坦鸡源产气荚膜梭菌(GenBank登录号:MN365136.1)具有较近的亲缘性,5株分离株与南非鸡源产气荚膜梭菌(GenBank登录号:OR494055)具有较近的亲缘性。毒素分型结果显示,5株为A型,2株为F型,2株为E型。致病性试验结果显示,小鼠全部死亡,表明该菌具有致死性。药敏试验结果显示,9株分离株均对头孢类抗生素敏感,耐药基因分析表明大环内酯类erm(B)(77.8%)和四环素类tetA(P)(55.6%)、tetB(P)(66.7%)为主要耐药基因。【结论】本研究从同一只病死鸡中分离到不同毒素型产气荚膜梭菌,且分离菌耐药情况较严重。研究结果为兽医临床鸡产气荚膜梭菌病防治提供了新的思路。

关键词：产气荚膜梭菌鸡毒素基因耐药性

ABOUT THE INTERNATIONAL GIS WORKSHOP ON ANTARCTIC KING GEORGE ISLAND

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Geo-Spatial Information Science 2001年第2期4卷 75-76页

作者： Gong jianya Workshop Organization Committee LIESMARS Wuhan University

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关键词： GIS ABOUT THE INTERNATIONAL GIS WORKSHOP ON ANTARCTIC KING GEORGE ISLAND

李素云从“聚于胃,关于肺”辨治胃食管反流性咳嗽思想探析

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辽宁中医杂志 2024年第8期51卷 24-27页

作者：白海春杨建雅李素云姚富科河南中医药大学河南郑州450046 郑州澍青医学高等专科学校河南郑州450064 河南中医药大学第一附属医院河南郑州450000

胃食管反流性咳嗽(gastroesophageal reflux cough,GERC)属于呼吸系统疾病,是慢性咳嗽的三大类型之一,多呈间断发作,缠绵难愈,影响生活质量。李素云教授临证多年,根据“五脏六腑皆令人咳”提出治病求本;病机方面,基于“聚于胃,关于肺”... 详细信息

胃食管反流性咳嗽(gastroesophageal reflux cough,GERC)属于呼吸系统疾病,是慢性咳嗽的三大类型之一,多呈间断发作,缠绵难愈,影响生活质量。李素云教授临证多年,根据“五脏六腑皆令人咳”提出治病求本;病机方面,基于“聚于胃,关于肺”理论,提出肺气上逆为标,肝胃气逆为本。临证治疗该病主张不离于肺胃,亦不止于肺胃,以脏腑辨证为纲,审证求因,以“泄、清、补、疏”四字为法,每获佳效。该文就“聚于胃,关于肺”理论在该病中的运用及其辨治GERC的经验进行探讨,以期对该病的临床治疗思路有所补充。

关键词：胃食管反流性咳嗽肺胃气逆辨证论治名医经验

Indoor scene texturing based on single mobile phone images and 3D model fusion

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International Journal of Digital Earth 2019年第5期12卷 525-543页

作者： Hanjiang Xiong Wei Ma Xianwei Zheng jianya Gong Douadi Abdelalim State Key Laboratory of Information Engineering in Surveying Mapping and Remote Sensing(LIESMARS)Wuhan UniversityWuhanHubei ProvincePeople’s Republic of China Collaborative Innovation Center of Geospatial Technology Wuhan UniversityWuhanPeople’s Republic of China

Realistic texture mapping and coherent up-to-date rendering is one of the most important issues in indoor 3-D ***,existing texturing approaches are usually performed manually during the modelling process,and cannot accommodate changes in indoor environments occurring after the model was created,resulting in outdated and misleading texture *** this study,a structured learning-based texture mapping method is proposed for automatic mapping a single still photo from a mobile phone onto an alreadyconstructed indoor 3-D *** up-to-date texture is captured using a smart phone,and the indoor structural layout is extracted by incorporating per-pixel segmentation in the FCN algorithm and the line constraints into a structured learning *** enables real-time texture mapping according to parts of the model,based on the structural ***,the rough camera pose is estimated by pedestrian dead reckoning(PDR)and map information to determine where to map the *** experimental results presented in this paper demonstrate that our approach can achieve accurate fusion of 3-D triangular meshes with 2-D single images,achieving low-cost and automatic indoor texture *** on this fusion approach,users can have a better experience in virtual indoor3-D applications.

关键词： Mobile phone image FCN texture updating indoor 3-D model augmented reality