Based on the Grammian and Pfaffian derivative formulae, Grammian and Pfaffian solutions are obtained for a （3＋1）-dimensional generalized shallow water equation in the Hirota bilinear form. Moreover, a Pfaffian exte...Based on the Grammian and Pfaffian derivative formulae, Grammian and Pfaffian solutions are obtained for a （3＋1）-dimensional generalized shallow water equation in the Hirota bilinear form. Moreover, a Pfaffian extension is made for the equation by means of the Pfaffianization procedure, the Wronski-type and Gramm-type Pfaffian solutions of the resulting coupled system are presented.展开更多
Jointly sponsored by the Chinese Ministry of Energyand the Canadian Federal Department of Industry,Science and Technology,Sino-Canadian seminars on hydropowertechnology were held in succession in Beijing,Chengdu andKu...Jointly sponsored by the Chinese Ministry of Energyand the Canadian Federal Department of Industry,Science and Technology,Sino-Canadian seminars on hydropowertechnology were held in succession in Beijing,Chengdu andKunming between November 18-27.More than 200 experts at-tended the seminars respectively.In the course of each seminarheld,Chinese participants reviewed with interest Canadian prac-tices and some of the unique technologies developed in tappingtheir hydro potentials over years while in the meantime Chinesecounterparts also highlighted the historic,current and future pro-gramme for hydropower development in China.As indicated inhis opening speech by Mr.Lu Youmei,Vice Minister of Energy,展开更多
There are various publications on the 90th birthday of Gottfried Konecny.His involvement in the International Society for Photogrammetry and Remote Sensing(ISPRS)is particularly described by others.Here,his forward-or...There are various publications on the 90th birthday of Gottfried Konecny.His involvement in the International Society for Photogrammetry and Remote Sensing(ISPRS)is particularly described by others.Here,his forward-oriented impulses in research and development at the former Institute for Photogrammetry and Engineering Survey of the(Technical)University of Hannover,today Institute for Photogrammetry and Geoinformation,Leibniz University Hannover,and some of his activities supporting developing and other countries by given shortterm courses are highlighted.Gottfried Konecny was always one of the first in pushing new technologies.With the analytical plotter AP/C-3,he introduced analytical photogrammetry in Germany.Based on his experience with this not really operational version,he induced the company Zeiss to develop the first really operational analytical plotter Planicomp,which resulted in the end of analog photogrammetric devices and their limitations.At the invitation of Gilbert Hobrough,a mainly hardware-based image correlator was developed for the AP/C-3 in Hannover which anticipated many of today’s applications.Gottfried Konecny initiated remote sensing in Germany.Based on his proposal with the Metric Camera Flight on Spacelab,the then highest resolution civil stereoscopic space images available were generated.Despite limited computer performance at his institute,a digital stereo plotter was developed,using hardware components from the cooperating Swedish company Context Vision,long before digital stereo workstations with increased and affordable computer capacity were possible.Also,in the area of GIS,he too,pushed development in collaboration with companies and administrations.Shortly before the end of his time as head of the institute,and more so after he became emeritus professor,he started a series of educational workshops,particularly in developing countries,but also other countries,to support the development of photogrammetry,remote sensing and GIS.He promoted the use of space imagery for mapping to improve the situation of poorly updated topographic maps.展开更多
Preface Lebenslauf Prof.Dr.-Ing.mult Gottfried Konecny is one of the most respected names in photogrammetry.He is an Honorary Member of International Society for Photogrammetry and Remote Sensing(ISPRS),Honorary Profe...Preface Lebenslauf Prof.Dr.-Ing.mult Gottfried Konecny is one of the most respected names in photogrammetry.He is an Honorary Member of International Society for Photogrammetry and Remote Sensing(ISPRS),Honorary Professor of Wuhan Technical University of Surveying and Mapping,and our best friend.展开更多
This special issue is dedicated to Prof.Gottfried Konecny(see Figure 1),the former president of the International Society for Photogrammetry and Remote Sensing(ISPRS)on the occasion of his 90th birthday,which he celeb...This special issue is dedicated to Prof.Gottfried Konecny(see Figure 1),the former president of the International Society for Photogrammetry and Remote Sensing(ISPRS)on the occasion of his 90th birthday,which he celebrated in good health and spirits in June 2020(see Figure 2).A visionary leader and missionary of global topographic mapping,a world scientist and a world citizen who restlessly built and continues to build sustainable bridges between different generations and different peoples of the globe and a true pioneer of photogrammetry and remote sensing,Konecny has shaped our field of research and development over the last 75 years in ways second to none.He also has a very special connection to China,which prompted the Editor-in-Chief of Geo-spatial Information Science to suggest this journal as a very good place to publish this special issue.As the successor of Prof.Konecny at the Institute of Photogrammetry and GeoInformation of Leibniz University Hannover,it is with great honor,joy and thankfulness that Christian Heipke accepted the invitation to be guest editor of this special issue,together with Deren Li.展开更多
We are privileged to be invited by the Honorary Editor-in-Chief,Professor Qihu Qian,Editor-in-Chief,Professor Xia-Ting Feng,and the editorial staff of the Journal of Rock Mechanics and Geotechnical Engineering(JRMGE),...We are privileged to be invited by the Honorary Editor-in-Chief,Professor Qihu Qian,Editor-in-Chief,Professor Xia-Ting Feng,and the editorial staff of the Journal of Rock Mechanics and Geotechnical Engineering(JRMGE),to serve as Guest Editors for this Special Issue(SI).Over the last decade,the application of the Internet of Things(IoT)and Artificial Intelligence(AI)has increased rapidly to enhance automation in various industries.For efficient construction and maintenance of geotechnical infrastructures(slopes,tunnels,pipelines,and other ground infrastructures),there is a need to access and examine measured data in real-time.Variations in data type due to the usage of unmanned aerial vehicle(UAV)photogrammetric sensors,LiDAR,and fiber optic sensing techniques make data management and analysis more complicated.Advanced artificial intelligence,metaheuristic optimization,and data science can be reliable methods in geotechnical engineering for site investigation,risk assessment,design,construction,and maintenance at a higher level.展开更多
基金Project supported by the National Natural Science Foundation of China (Grant Nos. 10932009 and 11172233)the Northwestern Polytechnical University Foundation for Fundamental Research, China (Grant No. GBKY1034)the State Administration of Foreign Experts Affairs of China, and the Chunhui Plan of the Ministry of Education of China
文摘Based on the Grammian and Pfaffian derivative formulae, Grammian and Pfaffian solutions are obtained for a （3＋1）-dimensional generalized shallow water equation in the Hirota bilinear form. Moreover, a Pfaffian extension is made for the equation by means of the Pfaffianization procedure, the Wronski-type and Gramm-type Pfaffian solutions of the resulting coupled system are presented.
文摘Jointly sponsored by the Chinese Ministry of Energyand the Canadian Federal Department of Industry,Science and Technology,Sino-Canadian seminars on hydropowertechnology were held in succession in Beijing,Chengdu andKunming between November 18-27.More than 200 experts at-tended the seminars respectively.In the course of each seminarheld,Chinese participants reviewed with interest Canadian prac-tices and some of the unique technologies developed in tappingtheir hydro potentials over years while in the meantime Chinesecounterparts also highlighted the historic,current and future pro-gramme for hydropower development in China.As indicated inhis opening speech by Mr.Lu Youmei,Vice Minister of Energy,
文摘There are various publications on the 90th birthday of Gottfried Konecny.His involvement in the International Society for Photogrammetry and Remote Sensing(ISPRS)is particularly described by others.Here,his forward-oriented impulses in research and development at the former Institute for Photogrammetry and Engineering Survey of the(Technical)University of Hannover,today Institute for Photogrammetry and Geoinformation,Leibniz University Hannover,and some of his activities supporting developing and other countries by given shortterm courses are highlighted.Gottfried Konecny was always one of the first in pushing new technologies.With the analytical plotter AP/C-3,he introduced analytical photogrammetry in Germany.Based on his experience with this not really operational version,he induced the company Zeiss to develop the first really operational analytical plotter Planicomp,which resulted in the end of analog photogrammetric devices and their limitations.At the invitation of Gilbert Hobrough,a mainly hardware-based image correlator was developed for the AP/C-3 in Hannover which anticipated many of today’s applications.Gottfried Konecny initiated remote sensing in Germany.Based on his proposal with the Metric Camera Flight on Spacelab,the then highest resolution civil stereoscopic space images available were generated.Despite limited computer performance at his institute,a digital stereo plotter was developed,using hardware components from the cooperating Swedish company Context Vision,long before digital stereo workstations with increased and affordable computer capacity were possible.Also,in the area of GIS,he too,pushed development in collaboration with companies and administrations.Shortly before the end of his time as head of the institute,and more so after he became emeritus professor,he started a series of educational workshops,particularly in developing countries,but also other countries,to support the development of photogrammetry,remote sensing and GIS.He promoted the use of space imagery for mapping to improve the situation of poorly updated topographic maps.
文摘Preface Lebenslauf Prof.Dr.-Ing.mult Gottfried Konecny is one of the most respected names in photogrammetry.He is an Honorary Member of International Society for Photogrammetry and Remote Sensing(ISPRS),Honorary Professor of Wuhan Technical University of Surveying and Mapping,and our best friend.
文摘This special issue is dedicated to Prof.Gottfried Konecny(see Figure 1),the former president of the International Society for Photogrammetry and Remote Sensing(ISPRS)on the occasion of his 90th birthday,which he celebrated in good health and spirits in June 2020(see Figure 2).A visionary leader and missionary of global topographic mapping,a world scientist and a world citizen who restlessly built and continues to build sustainable bridges between different generations and different peoples of the globe and a true pioneer of photogrammetry and remote sensing,Konecny has shaped our field of research and development over the last 75 years in ways second to none.He also has a very special connection to China,which prompted the Editor-in-Chief of Geo-spatial Information Science to suggest this journal as a very good place to publish this special issue.As the successor of Prof.Konecny at the Institute of Photogrammetry and GeoInformation of Leibniz University Hannover,it is with great honor,joy and thankfulness that Christian Heipke accepted the invitation to be guest editor of this special issue,together with Deren Li.
文摘We are privileged to be invited by the Honorary Editor-in-Chief,Professor Qihu Qian,Editor-in-Chief,Professor Xia-Ting Feng,and the editorial staff of the Journal of Rock Mechanics and Geotechnical Engineering(JRMGE),to serve as Guest Editors for this Special Issue(SI).Over the last decade,the application of the Internet of Things(IoT)and Artificial Intelligence(AI)has increased rapidly to enhance automation in various industries.For efficient construction and maintenance of geotechnical infrastructures(slopes,tunnels,pipelines,and other ground infrastructures),there is a need to access and examine measured data in real-time.Variations in data type due to the usage of unmanned aerial vehicle(UAV)photogrammetric sensors,LiDAR,and fiber optic sensing techniques make data management and analysis more complicated.Advanced artificial intelligence,metaheuristic optimization,and data science can be reliable methods in geotechnical engineering for site investigation,risk assessment,design,construction,and maintenance at a higher level.
