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| 1 | A Spatially Weighted Degree Model for Network Vulnerability Analysis显示文摘Using degree distribution to assess network vulnerability represents a promising direction of network analysis.However,the traditional degree distribution model is inadequate for analyzing the vulnerability of spatial networks because it does not take into consideration the geographical aspects of spatial networks.This paper proposes a spatially weighted degree model in which both the functional class and the length of network links are considered to be important factors for determining the node degrees of spatial networks.A weight coefficient is used in this new model to account for the contribution of each factor to the node degree.The proposed model is compared with the traditional degree model and an accessibility-based vulnerability model in the vulnerabil-ity analysis of a highway network.Experiment results indicate that,although node degrees of spatial networks derived from the tra-ditional degree model follow a random distribution,node degrees determined by the spatially weighted model exhibit a scale-free distribution,which is a common characteristic of robust networks.Compared to the accessibility-based model,the proposed model has similar performance in identifying critical nodes but with higher computational efficiency and better ability to reveal the overall vulnerability of a spatial network. | WAN Neng1,ZHAN F.Benjamin1,2,CAI Zhongliang2 1.School Texas Center for Geographic Information Science,Department of Geography,Texas State University,San Marcos,TX 78666,USA 2.School of Resource and Environmental Science,Wuhan University,129 Luoyu Road,Wuhan 430079,China | 2011 | Geo-Spatial Information Science2011，14，4： | 9 |
| 2 | Long Distance Transference of Height Datum Across Seas显示文摘This paper focuses on studying long distance transference of height datum across seas by combining ellipsoidal height derived from GPS with gravimetric geoid height.The Yellow Sea Height Datum is transferred to Yangshan Island which is 30 km away from Luchaogang in Shanghai.The stations heights derived in this way are compared with those determined from two independent sets of the tidal observations taken in two years,and the difference values are 1.0 cm and 6.0 cm,respectively.Moreover,the derived height differences between two sections on the island are also compared with the values derived from precise leveling with respect to the same section.The result shows that the inconsistencies are only 0.2 cm and 0.7 cm,respectively. | LI Jiancheng JIANG Weiping professor,School of Geodesy and Geomatics,Wuhan University,129 Luoyu Road,Wuhan 430079,China. | 2002 | Geo-Spatial Information Science2002，5，3： | 2 |
| 3 | Land Use Structure Optimization Under Systematic Framework显示文摘This paper puts forward the concept of land use structure optimization under space_time coupling through analyzing the systematic characteristic of land use structure optimization.It mainly expounds the construction of land use structure optimization model at different levels.Lastly,this paper explains the practicableness of land use structure optimization under systematic framework through the example of Qionghai city. | LIU Yanfang HUANG Liangprofessor,School of Resource and Environment Science,Wuhan University,129 Luoyu Road,Wuhan 430079,China. | 2002 | Geo-Spatial Information Science2002，5，3： | 2 |
| 4 | DEM FROM SAR:PRINCIPLE AND APPLICATION显示文摘The paper gives an overview of the principle and application of generating DEM from SAR, including the principle and processing flow of generating DEM from single SAR and SAR interferometry. Afterwards, the application fields of InSAR for terrain surveying, volcanic terrain surveying and D-InSAR for monitoring ground subsiding are listed and described as well. The problem and prospect of application are also pointed out in the last part of this paper. | Li Deren and Yang Jie (National Laboratory for Information Engineering in Survey, Mapping and Remote Sensing, Wuhan University Luoyu Road 129, Wuhan 430079, P. R. China) | 2003 | 大地测量与地球动力学2003，23，B12： | 2 |
| 5 | Designing Thought,Technical Line and Some Theoretical Issues on Geospatial Digital Framework of China显示文摘Based on the developing tendency of present China’s basic GIS,this paper discusses the designing idea for scales of 1∶10 000,1∶50 000, 1∶250 000 and 1∶1 000 000 pyramid_like multi_layer and multi_resolution of the basic GIS.A technical line for the construction of basic GIS of the whole country and various provinces for sustainable development is put forward.And some important theoretical GIS issues touched by the technical process are discussed. | HU Peng HU Yuju YANG Chuanyong WU Yanlan HU Haiprofessor,School of Resource and Environment Science,Wuhan University,129 Luoyu Road,Wuhan 430079,China. | 2002 | Geo-Spatial Information Science2002，5，3： | 1 |
| 6 | Semi-continuous anaerobic co-digestion of dairy manure with three crop residues for biogas production显示文摘 | Jiang Li Luoyu Wei Qiwu Duan Guoquan Hu Guozhi Zhang | 2014 | Bioresource Technology2014，，： | 1 |
| 7 | Entropy Error Model of Planar Geometry Features in GIS显示文摘Positional error of line segments is usually described by using 'g-band', however, its band width is in relation to the confidence level choice. In fact, given different confidence levels, a series of concentric bands can be obtained. To overcome the effect of confidence level on the error indicator, by introducing the union entropy theory, we propose an entropy error ellipse index of point, then extend it to line segment and polygon, and establish an entropy error band of line segment and an entropy error donut of polygon. The research shows that the entropy error index can be determined uniquely and is not influenced by confidence level, and that they are suitable for positional uncertainty of planar geometry features. | LI Dajun GUAN Yunlan GONG Jianya DU Daosheng LI Dajun,Ph.D candidate, National Laboratory for Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University,129 Luoyu Road, Wuhan 430079,China. | 2003 | Geo-Spatial Information Science2003，6，2： | 1 |
| 8 | Investigation of Image Fusion Between High-Resolution Image and Multi-spectral Image显示文摘On the basis of a thorough understanding of the physical characteristics of remote sensing image, this paper employs the theories of wavelet transform and signal sampling to develop a new image fusion algorithm. The algorithm has been successfully applied to the image fusion of SPOT PAN and TM of Guangdong province, China. The experimental results show that a perfect image fusion can be built up by using the image analytical solution and re-construction in the image frequency domain based on the physical characteristics of the image formation. The method has demonstrated that the results of the image fusion do not change spectral characteristics of the original image. | LI Pingxiang WANG ZhijunLI Pingxiang, professor, State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, 129 Luoyu Road, Wuhan 430079, China. | 2003 | Geo-Spatial Information Science2003，6，2： | 1 |
| 9 | Methods and Prospects of Road and Linear Structure Automatic Extraction from Remote Sensing Images显示文摘Automatic extraction of road and linear structure from remote sensing images is a very important problem. This paper analyses several existing methods of the automatic road and linear structure extraction by using some multi-spectral remote sensing images acquired from different spatial resolutions, districts and road characteristics. Their advantages and disadvantages have been generalized. | LIU Zhengrong LIU Zhengrong, Research Center of Spatial Information and Digital Engineering, Wuhan University, 129 Luoyu Road, Wuhan 430079, China. | 2003 | Geo-Spatial Information Science2003，6，2： | 0 |
| 10 | Processing Approach of Non-linear Adjustment Models in the Space of Non-linear Models显示文摘This paper investigates the mathematic features of non-linear models and discusses the processing way of non-linear factors which contributes to the non-linearity of a non-linear model. On the basis of the error definition,this paper puts forward a new adjustment criterion, SGPE.Last,this paper investigates the solution of a non-linear regression model in the non-linear model space and makes the comparison between the estimated values in non-linear model space and those in linear model space. | LI Chaokui ZHU Qing SONG ChengfangLI Chaokui,associate professor,Ph.D,State Key Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing,Wuhan University,129 Luoyu Road,Wuhan 430079,China. | 2003 | Geo-Spatial Information Science2003，6，2： | 0 |
| 11 | Application of Component Technology to E-commerce System显示文摘At present E-commerce system tends to become more complex, and traditional system designing methods can not fufil the need of E-commerce system, thus requiring an effective methodas solution. With this concern, this paper introduces some concepts of component technology, then brings forward the new connotation and basic features of component technology through the analysis of its technological character. This paper finally discusses the application of component technology to E-commerce system. | ZHU Jianfeng ZHU Jianfeng, postgraduate, School of Information Management, Wuhan University, Luojia Hill, Wuhan 430072 Economic Information Management Department, Hubei Univisity of Economics, 33 Luoyu Road, Wuhan 430079, China. | 2004 | Geo-Spatial Information Science2004，7，4： | 0 |
| 12 | FLOOD SIMULATION IN THE COASTAL LOWLANDS OF NORTHERN JIANGSU,CHINA显示文摘The coastal lowlands in northern Jiangsu Province, China, is characterized by low relief and low water surface gradient in streams. The flooding stages are commonly lower than the high-tide level and the tidal range is relatively small. All these factors prohibit rapid discharge of floodwater and make the flood regimes here extremely sensitive to the sea level rise. The 1991 Plum Rain was examined, when precipitation was significantly higher than normal. The one-dimensional open-channel non-conservative flow model was used to simulate the stream flow in the channel network of studied area. GIS technology was used to delineate the maximum in undated area by analyzing the DEMs. | CHEN Xiaoling CHEN Xiaoling,Associate professor, National Laboratory for momation Engi-neering in Surveying, Mapping and Remote Sensing, WTUSM, 129 Luoyu Road,Wuhan 430079,China | 1999 | Geo-Spatial Information Science1999，2，1： | 0 |
| 13 | Acoustic emissions evaluation of the dynamic splitting tensile properties of steel fiber reinforced concrete under freeze-thaw cycling显示文摘This study empirically investigated the influence of freeze-thaw cycling on the dynamic splitting tensile properties of steel fiber reinforced concrete(SFRC).Brazilian disc splitting tests were conducted using four loading rates(0.002,0.02,0.2,and 2 mm/s)on specimens with four steel fiber contents(0%,0.6%,1.2%,and 1.8%)subjected to 0 and 50 freeze-thaw cycles.The dynamic splitting tensile damage characteristics were evaluated using acoustic emission(AE)parameter analysis and Fourier transform spectral analysis.The results quantified using the freeze-thaw damage factor defined in this paper indicate that the degree of damage to SFRC caused by freeze-thaw cycling was aggravated with increasing loading rate but mitigated by increasing fiber content.The percentage of low-frequency AE signals produced by the SFRC specimens during loading decreased with increasing loading rate,whereas that of high-frequency AE signals increased.Freeze-thaw action had little effect on the crack types observed during the early and middle stages of the loading process;however,the primary crack type observed during the later stage of loading changed from shear to tensile after the SFRC specimens were subjected to freeze-thaw cycling.Notably,the results of this study indicate that the freeze-thaw damage to SFRC reduces AE signal activity at low frequencies. | Hua ZHANG Xinyue LIU Lingyu BAI Shanshan JI Luoyu PAN Xuechen LI | 2023 | Frontiers of Structural and Civil Engineering2023，17，9： | 0 |
| 14 | Design of the Urban Land Grading Information System显示文摘This paper discusses the urban land grading system based on the self_developed GIS software.The system establishes the system template,the relevant data structure and the empirical formulas of the affecting factor and economic data of land use.Besides,the system can calculate the service radius,sum and land grade automatically.Furthermore,it can do statistics and query on various land information and show the result of land grading with spatial and attribute data.This paper illustrates the result by giving an example of the commercial land grading of the urban area of Wuhan City by the urban land grading system. | LIU Yaolin ZHANG Yumeiprofessor,School of Resource and Environment Science,Wuhan University,129 Luoyu Road,Wuhan 430079,China. | 2002 | Geo-Spatial Information Science2002，5，3： | 0 |
| 15 | Computational Complexity of Spatial Reasoning with Directional Relationship显示文摘The property of NP_completeness of topologic spatial reasoning problem has been proved.According to the similarity of uncertainty with topologic spatial reasoning,the problem of directional spatial reasoning should be also an NP_complete problem.The proof for the property of NP_completeness in directional spatial reasoning problem is based on two important transformations.After these transformations,a spatial configuration has been constructed based on directional constraints,and the property of NP_completeness in directional spatial reasoning has been proved with the help of the consistency of the constraints in the configuration. | MAO Jianhua GUO Qingsheng WANG Tao lecturer,Ph.D candidate,School of Resource and Environment Science,Wuhan University,129 Luoyu Road,Wuhan 430079,China. | 2002 | Geo-Spatial Information Science2002，5，3： | 0 |
| 16 | Direct Creation of Construction Drawings for Kwan-yin Statue by Close-Range Photogrammetry显示文摘In order to provide the model point accuracy of ±2 mm,an extra high accuracy industrial control net with four surveying piers with accuracy ±0.1 mm was set up around the model.Tens of orientation marks have been placed on the different parts and measured with accuracy ±0.2 mm from the above_mentioned piers.The main four stereopairs taken with the P31 camera around the model are simultaneously processed on the BC2 analytical plotter.The accuracy of absolute orientation is better than ±0.9 mm.Finally,about 300 sections construction drawings have been directly offered,and the close_range photogrammetric data has been used for the design and construction of the statue. | FENG Wenhao LI Xin JIANG Wanshou GAO Xinqiaoprofessor,Ph.D supervisor,School of Remote Sensing and Information Engineering,Wuhan University,129 Luoyu Road,Wuhan 430079,China. | 2002 | Geo-Spatial Information Science2002，5，3： | 0 |
| 17 | Crustal Movement Patterns of China Continent Measured by GPS显示文摘This paper uses multi-quadric equations interpolation to es-tablish a widely covered and valuablespeed field model of China, withwhich the horizontal crustal movementpatterns are obtained. The present-dayvertical crustal movement velocity im-age of China is also expressed by GPSobservations, from which we canknow the vertical crustal movementpatterns. | YAO Yibin, Ph.D candidate, School of Geodesy and Geomatics, Wuhan University, 129 Luoyu Road, Wuhan 430079, China. | 2003 | Geo-Spatial Information Science2003，6，4： | 0 |
| 18 | A copper-catalyzed three-component reaction of alkenes,cycloketone oximes and DABCO·(SO_(2))_(2):Direct C(sp^(2))-H cyanoalkylsulfonylation显示文摘A copper-catalyzed three-component reaction of alkenes,cycloketone oximes and DABCO·(SO_(2))_(2) is de-veloped,which provides a convenient route for the synthesis of diverse(E)-cyanoalkylsulfonyl alkenes in moderate to good yields with excellent regio-and stereoselectivity.A broad substrate scope with ex-cellent functional group tolerance is observed.A plausible radical pathway is proposed,which involves copper-catalyzed ring-opening C–C bond cleavage of O-acyl oxime and insertion of sulfur dioxide.During the reaction process,cyanoalkyl radical and cyanoalkylsulfonyl radical are the key intermediates. | Yating Liu Luoyu Wang Ling-Hui Zeng Yun Zhao Tonghao Zhu Jie Wu | 2022 | Chinese Chemical Letters2022，33，5： | 0 |
| 19 | CLINICAL SIMULATED EXPERIMENT ON THE SYNDROMI STANDARDS OF PULMONARY SYSTEM DISEASES显示文摘CLINICALSIMULATEDEXPERIMENTONTHESYNDROMISTANDARDSOFPULMONARYSYSTEMDISEASESMulinXuQiouqinWang(HubeiAcademyofTraditionalChinese... | Mulin Xu Qiouqin Wang(Hubei Academy of Traditional Chinese Medicine232 Luoyu Road, Wuhan, 430074, China) | 1994 | Chinese Journal of Biomedical Engineering(English Edition)1994，3，2： | 0 |
| 20 | Discussion on the Application of Ascending and Descending Property of Traditional Chinese Medicine in Compatibility of Clinical Prescriptions显示文摘Through the method of literature mining,the classics of traditional Chinese medicine,materia medica works,medical cases and documents are studied.Based on common prescriptions for the treatment of diseases such as abnormal Zang-fu viscera and qi movement,dysfunction,etc.,and combined with the theory of ascending and descending property of traditional Chinese medicine,the application of ascending and descending property of traditional Chinese medicine in clinical prescription compatibility and the factors affecting the application are summarized.The ascending and descending properties of traditional Chinese medicine have been widely used in prescription compatibility for the clinical treatment of impairment of purifying and descending function of the lung,spleen and stomach's ascending and descending disorders and heart-kidney noninteractionpatte. | Long CHEN Luoyu SHI Donghua LI | 2021 | Medicinal Plant2021，12，5： | 0 |
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