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Application of Digital Technology in Road and Bridge Design
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作者 Bai Fan 《Journal of Architectural Research and Development》 2024年第4期92-99,共8页
With the development and progress of science and technology,road and bridge design has experienced rapid development,from the initial manual drawing design to the popularity of Computer-Aided Design(CAD),and then to t... With the development and progress of science and technology,road and bridge design has experienced rapid development,from the initial manual drawing design to the popularity of Computer-Aided Design(CAD),and then to today’s digital software design era.Early designers relied on hand-drawn paper design forms which was time-consuming and error-prone.Digital support for road and bridge design not only saves the design time but the design quality has also achieved a qualitative leap.This paper engages in the application of digital technology in road and bridge design,to provide technical reference for China’s road and bridge engineering design units,to promote the popularity of Civil3D and other advanced design software in the field of engineering design and development,ultimately contributing to the sustainable development of China’s road and bridge engineering. 展开更多
关键词 Road and bridge design digital technology Civil3D MODELLING three-dimensional view earth calculation
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Three-dimensional visualization interactive system for digital twin workshop 被引量:7
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作者 Zhang Qinglei Yang Zhiwei +2 位作者 Duan Jianguo Liu Zhen Qin Jiyun 《Journal of Southeast University(English Edition)》 EI CAS 2021年第2期137-152,共16页
To improve the human-physical-virtual coordination and integration of the digital twin workshop,3D visual monitoring and human-computer interaction of the digital twin workshop was studied.First,a novel 6D model of th... To improve the human-physical-virtual coordination and integration of the digital twin workshop,3D visual monitoring and human-computer interaction of the digital twin workshop was studied.First,a novel 6D model of the 3D visualization interactive system for digital twin workshops is proposed.As the traditional 5D digital twin model ignores the importance of human-computer interaction,a new dimension of the user terminal was added.A hierarchical real-time data-driven mapping model for the workshop production process is then proposed.Moreover,a real-time data acquisition method for the industrial Internet of things is proposed based on OPC UA(object linking and embedding for process control unified architecture).Based on the 6D model of the system,the process of creating a 3D visualization virtual environment based on virtual reality is introduced,in addition to a data-driven process based on the data management cloud platform.Finally,the 6D model of the system was confirmed using the blade rotor test workshop as the object,and a 3D visualization interactive system is developed.The results show that the system is more transparent,real-time,data-driven and more efficient,as well as promotes the coordination and integration of human-physical-virtual,which has practical significance for developing digital twin workshops. 展开更多
关键词 digital twin workshop three-dimensional visualization human-computer interaction data driven OPC UA(object linking and embedding for process control unified architecture)
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Optical encryption of multiple three-dimensional objects based on multiple interferences and single-pixel digital holography 被引量:2
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作者 Ying Wang Qi Liu +1 位作者 Jun Wang Qiong-Hua Wang 《Chinese Physics B》 SCIE EI CAS CSCD 2018年第3期253-259,共7页
We present an optical encryption method of multiple three-dimensional objects based on multiple interferences and single-pixel digital holography. By modifying the Mach-Zehnder interferometer, the interference of the ... We present an optical encryption method of multiple three-dimensional objects based on multiple interferences and single-pixel digital holography. By modifying the Mach-Zehnder interferometer, the interference of the multiple objects beams and the one reference beam is used to simultaneously encrypt multiple objects into a ciphertext. During decryption, each three-dimensional object can be decrypted independently without having to decrypt other objects. Since the single- pixel digital holography based on compressive sensing theory is introduced, the encrypted data of this method is effectively reduced. In addition, recording fewer encrypted data can greatly reduce the bandwidth of network transmission. Moreover, the compressive sensing essentially serves as a secret key that makes an intruder attack invalid, which means that the system is more secure than the conventional encryption method. Simulation results demonstrate the feasibility of the proposed method and show that the system has good security performance. 展开更多
关键词 multiple three-dimensional objects encryption single-pixel digital holography phase-shifting in- terference compressive sensing
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A combination of digital design and three-dimensional printing to assist treatment of thoracolumbar compression fractures using percutaneous kyphoplasty 被引量:2
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作者 Hui Lu Daixiang Jiang +1 位作者 Qimei Wu Rong Liu 《Global Health Journal》 2021年第4期190-193,共4页
Objective:To evaluate the clinical efficacy of the preoperative digita1 design combined with three dimensional(3D)printing models to assist percutaneous kyphoplasty(PKP)treatment for thoracolumbar compression frac tur... Objective:To evaluate the clinical efficacy of the preoperative digita1 design combined with three dimensional(3D)printing models to assist percutaneous kyphoplasty(PKP)treatment for thoracolumbar compression frac tures.Methods:From January 2018 to August 2020,we obtained data of 99 patients diagnosed thoracolumbar compression fractures.These patients were divided into control group(n=50)underwent traditional PKP surgery,and observation group(n=49)underwent preoperative digital design combined with 3D printing model assisted PKP treatment.The clinical efficacy was evaluated with five parameters,including operation time,number of intraoperative radiographs,visual analogue scale(VAS)score,Cobb Angle change,and high compression rate of injured vertebrae.Results:There were statistically significant differences of operation time and number of intraoperative radio graphs between the two groups(P<0.05).For VAS score,Cobb Angle change and vertebral height compression rate,all of these three parameters were significantly improved when the patients accepted surgery teatment in two groups(P<0.05).However,there were no significant differences between control group and observation group for these three parameters either before or after surgery(P>0.05).Conclusions:Through the design of preoperative surgical guide plate and the application of 3D printing model to guide the operation,the precise design of preoperative surgical puncture site and puncture Angle of the injured vertebra was realized,the number of intraoperative radiographs was reduced,the operation time was shortened and the operation efficiency was improved. 展开更多
关键词 Percutaneous kyphoplasty Thoracolumbar compression fracture digital design three-dimensional(3D)printing
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Evaluation of Maxillary Dental Arch Widths in Individuals Having Unilateral and Bilateral Cleft Lip and Palate Using Three-Dimensional Digital Models
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作者 Ege Dogan Abdü +2 位作者 lkadir Iş ik Servet Dogan 《Open Journal of Stomatology》 2019年第7期159-167,共9页
Aim: Maxillary dental arch widths were evaluated in individuals having unilateral (UCLP) and bilateral (BCLP) cleft lip and palate (CLP) using three-dimensional (3D) digital models. Material and Method: The study had ... Aim: Maxillary dental arch widths were evaluated in individuals having unilateral (UCLP) and bilateral (BCLP) cleft lip and palate (CLP) using three-dimensional (3D) digital models. Material and Method: The study had been conducted on 80 individuals aged between 14 - 17 years having UCLP and BCLP. 40 of the individuals had UCLP, whereas 40 had BCLP. The maxillary dental models taken from patients before the treatment were scanned using Orthomodel Programme (v.1.01, Orthomodel Inc., Istanbul, Turkey) to obtain 3D imagery. Student’s t-test was used in order to assess the data obtained by using SPSS software version 22.0. Results: In BCLP, the average inter-canine distance was 17.44 ± 1.31 mm, the average inter-molar distance was 36.57 ± 1.12 mm, while inter-canine/inter-molar ratio was 0.47. Whereas in UCLP, it was 25.10 ± 0.63 mm, 42.20 ± 0.53 mm and 0.59. The inter-canine distance in UCLP was found to be large enough to be statistically significant (p 0.05), even though there were differences in inter-molar widths. Conclusion: For the stable orthodontic treatment results, one of the most important points is arch form and widths to be coherent with each other. In our study, the increase of inter-canine distance seen in UCLP indicates that in the cleft region, the maxillary arch is inclined over to the back, while the same situation in BCLP suggests that the maxillary segments are collapsed inside. The difference in the arch is highly affected by the primary surgical treatment. 展开更多
关键词 UNILATERAL CLEFT LIP and PALATE Bilateral CLEFT LIP and PALATE three-dimensional digital Models
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Digital measurement of bone tumor volume by CT three-dimensional reconstruction technology
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作者 胡永成 《外科研究与新技术》 2011年第2期125-125,共1页
Objective To discuss the measurement of bone tumor volume on the basis of three dimensional images segmentation technology. Methods Twenty patients with lacunar bone tumor from Tianjin Hospital and Tongji Hospital wer... Objective To discuss the measurement of bone tumor volume on the basis of three dimensional images segmentation technology. Methods Twenty patients with lacunar bone tumor from Tianjin Hospital and Tongji Hospital were included in the 展开更多
关键词 BONE digital measurement of bone tumor volume by CT three-dimensional reconstruction technology CT
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Digital Earth在防震减灾工作中的应用——Google Earth为例 被引量:5
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作者 李东平 孙建国 胡绣芳 《地震地磁观测与研究》 2007年第2期90-96,共7页
美国前副总统戈尔在1998年提出了Digital Earth的概念,本文对Digital Earth在防震减灾工作中的应用做了初步探索,对Digital Earth的主要软件——Google Earth做了介绍,并对其在防震减灾工作中的应用做了详细论述。介绍了Google Earth结... 美国前副总统戈尔在1998年提出了Digital Earth的概念,本文对Digital Earth在防震减灾工作中的应用做了初步探索,对Digital Earth的主要软件——Google Earth做了介绍,并对其在防震减灾工作中的应用做了详细论述。介绍了Google Earth结合震害快速评估,构造研究、野外地震地质调查的具体应用。Digital Earth在不断发展,在我们的工作、生活中发挥了巨大作用,防震减灾工作中Digital Earth的应用才刚刚开始,可以肯定,Digital Earth作为当今科技制高点,将会使传统防震减灾工作的技术方式等产生根本性的改变。 展开更多
关键词 digital earth 防震减灾 GOOGLE earth
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Digital Element Earth 被引量:12
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作者 XIE Xuejing WANG Xueqiu CHENG Hangxin CHENG Zhizhong YAO Wensheng 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2011年第1期1-16,共16页
The resources and environmental problems are the two most fundamental issues facing all nations in the world. Everything in and on the Earth - minerals, animals and plants -is made from one, or generally some combinat... The resources and environmental problems are the two most fundamental issues facing all nations in the world. Everything in and on the Earth - minerals, animals and plants -is made from one, or generally some combination of, chemical elements, which are scientifically listed in the periodic table. Thus it is important to understand the present abundance and spatial distribution of all the elements across the Earth's surface. Such kinds of data can only be obtained at present and for the foreseeable future by on-earth geochemical mapping at all scales. The 30-year efforts made by Chinese geochemists in carrying out multi-element, multi-media, multi-scale geochemical mapping projects to delineate 39-76 element distribution at home and abroad culminated in a successful case of high- quality geochemical data acquirement. The new idea for a four-level plan for global geochemical mapping was advanced to obtain global data in the foreseeable future and the collection of updated geochemical information. Such information needs to be easily accessible not only by the science community, but also by industry, agriculture, governments, and even individuals, by all who would make an effort to promote sustainable riving on our planet. The concept of a Digital Element Earth (DEE) fulfills the aims. 展开更多
关键词 digital Element earth chemical elements geochemical mapping sustainable development
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From Paleogeographic maps to Evolving Deep-time Digital Earth models 被引量:2
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作者 Sabin ZAHIROVIC Tristan SALLES +10 位作者 Dietmar MüLLER Michael GURNIS CAO Wenchao Carmen BRAZ Lauren HARRINGTON Youseph IBRAHIM Rhiannon GARRETT Simon WILLIAMS CHEN Anqing HOU Mingcai James G.OGG 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2019年第S01期73-75,共3页
Major advances in computational power,as well as community modelling workflows and an improvement in data availability,has revolutionized Earth sciences over the last decade.Geological data has been synthesized into f... Major advances in computational power,as well as community modelling workflows and an improvement in data availability,has revolutionized Earth sciences over the last decade.Geological data has been synthesized into flexible and open access plate tectonic and paleogeographic reconstructions using the open-source and cross-platform GPlates(www.gplates.org)software since 2008(Muller et al.,2018;Muller et al.,2008). 展开更多
关键词 PALEOGEOGRAPHY TECTONICS TETHYS GPlates digital earth
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A contrastive study on the influences of radial and three-dimensional satellite gravity gradiometry on the accuracy of the Earth's gravitational field recovery 被引量:5
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作者 郑伟 许厚泽 +1 位作者 钟敏 员美娟 《Chinese Physics B》 SCIE EI CAS CSCD 2012年第10期577-584,共8页
The accuracy of the Earth's gravitational field measured from the gravity field and steady-state ocean circulation explorer(GOCE),up to 250 degrees,influenced by the radial gravity gradient V zz and three-dimension... The accuracy of the Earth's gravitational field measured from the gravity field and steady-state ocean circulation explorer(GOCE),up to 250 degrees,influenced by the radial gravity gradient V zz and three-dimensional gravity gradient V ij from the satellite gravity gradiometry(SGG) are contrastively demonstrated based on the analytical error model and numerical simulation,respectively.Firstly,the new analytical error model of the cumulative geoid height,influenced by the radial gravity gradient V zz and three-dimensional gravity gradient V ij are established,respectively.In 250 degrees,the GOCE cumulative geoid height error measured by the radial gravity gradient V zz is about 2 1/2 times higher than that measured by the three-dimensional gravity gradient V ij.Secondly,the Earth's gravitational field from GOCE completely up to 250 degrees is recovered using the radial gravity gradient V zz and three-dimensional gravity gradient V ij by numerical simulation,respectively.The study results show that when the measurement error of the gravity gradient is 3×10 12 /s 2,the cumulative geoid height errors using the radial gravity gradient V zz and three-dimensional gravity gradient V ij are 12.319 cm and 9.295 cm at 250 degrees,respectively.The accuracy of the cumulative geoid height using the three-dimensional gravity gradient V ij is improved by 30%-40% on average compared with that using the radial gravity gradient V zz in 250 degrees.Finally,by mutual verification of the analytical error model and numerical simulation,the orders of magnitude from the accuracies of the Earth's gravitational field recovery make no substantial differences based on the radial and three-dimensional gravity gradients,respectively.Therefore,it is feasible to develop in advance a radial cold-atom interferometric gradiometer with a measurement accuracy of 10 13 /s 2-10 15 /s 2 for precisely producing the next-generation GOCE Follow-On Earth gravity field model with a high spatial resolution. 展开更多
关键词 GOCE GOCE Follow-On radial and three-dimensional gravity gradients satellite gravity gradiometry earth's gravitational field
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“Digital earth” in support of an online oceanic educational public service and popularization 被引量:1
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作者 ZHANG Xin DONG Wen +2 位作者 JIANG Xiaoyi SHI Suixiang CHI Tianhe 《Acta Oceanologica Sinica》 SCIE CAS CSCD 2013年第5期82-86,共5页
According to the initial vision of "digital earth" (DE), the public should constitute a significant proportion of its users. However, to date, most of the studies and applications have focused on science, the priv... According to the initial vision of "digital earth" (DE), the public should constitute a significant proportion of its users. However, to date, most of the studies and applications have focused on science, the private sec- tor and government. A DE-supported online oceanic educational public service and popularization system, iOcean, is studied. First, the vision for the public's engagement with "digital ocean" is described: an analysis is presented from four aspects, i.e., the space dimension, the time dimension, the state dimension and its relationship with human beings. Second, the technical framework of iOcean is discussed, including data updating and model computing, the data, the function, and the application layers. Third, two key technolo- gies are studied in detail that will enable the construction of iOcean. More than half a million public viewers have used the current version's website. Practical demonstrations show that iOcean can bring virtual oceans to web browsers and desktops and construct a bridge between government departments and the general public. 展开更多
关键词 digital earth digital ocean" iOcean public service POPULARIZATION
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Review on status of groundwater database and application prospect in deep-time digital earth plan 被引量:2
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作者 Wenkai Qiu Teng Ma +3 位作者 Yanxin Wang Jianmei Cheng Chunli Su Junxia Li 《Geoscience Frontiers》 SCIE CAS CSCD 2022年第4期114-128,共15页
Groundwater is an important water resource.The total amount of active groundwater in a hydrological cycle is about 3.5 times that of the total amount of surface water.The information in the deep groundwater records th... Groundwater is an important water resource.The total amount of active groundwater in a hydrological cycle is about 3.5 times that of the total amount of surface water.The information in the deep groundwater records the material exchange and dynamics in the earth’s evolution,which is an important aspect of the Deep-Time Digital Earth(DDE)plan.In recent years,scientists have discussed the distribution of transboundary aquifers and the environmental significance of groundwater resources through groundwater databases established by international organizations,such as the Global Groundwater Information System and the chronicles consortium,and national institutes,such as national geological surveys.The application of the groundwater database in the DDE plan,however,has been limited by the management,interactivity,and monitoring method of the groundwater data.The ability to further integrate data that are private and scattered across research institutions and individuals,while establishing an open,unified,and shared groundwater data platform,is essential to enhance our understanding of groundwater,ranging from shallow to deep water,which is a goal of the DDE plan.In this study,we introduced the current situation of groundwater database operations in domestic and international research and provided frontier research with groundwater big data.Considering the related objectives of the DDE plan and the limitations of existing groundwater databases,we proposed an improvement plan and new prospects for applying groundwater databases in the research of the deep earth. 展开更多
关键词 Deep-Time digital earth Groundwater database Big data technology HYDROGEOLOGY
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Digital earth, Virtual Reality and urban seismic disaster simulation 被引量:2
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作者 HE Jian-bang, HU Zhi-yong, YE Ze-tian, LI Hui-guo, WANG Jin-feng (State Key Laboratory of Resources & Environment Information Systems, Chinese Academy of Sciences, Beijing 100101, China) 《Journal of Geographical Sciences》 SCIE CSCD 2000年第2期119-128,共10页
US Vice President Al Gore's vision of Digital Earth applies us with prospects for brand-new ways of solving problems the earth is facing such as seismic disaster. ms paper first briefly introduces the concept of ... US Vice President Al Gore's vision of Digital Earth applies us with prospects for brand-new ways of solving problems the earth is facing such as seismic disaster. ms paper first briefly introduces the concept of Digital Earth. Then in the context of Digital Earth. the Origin, concept and application of Virtual Reality technology are reviewed. After that we present in detail our preliminary case study--CVR-USD (Computer Virtual Reality for Urban Seismic Disaster Simulation) System which aims to simulate and manage seismic disaster through integrating RS, GIS and VR technologies. For this system, we've built USD subsystem, developed SMVR software to implement CVR. and also developed a Spatial Dare Analysis Package to handle spatial data related to earthquake disaster. 展开更多
关键词 digital earth Virtual Reality seismic disaster simulation remote sensing GIS
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Study of“Digital Earth”and“Earth System Science”
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作者 Xuelian Zhao Faculty of Earth Sciences,China University of Geosciences(Wuhan),Wuhan 430074,China. 《地学前缘》 EI CAS CSCD 北大核心 2009年第S1期285-285,共1页
"Digital Earth"is a leap in the process of mankind learning about the Earth after the great geographical discovery of Copernicus,Galileoi’s heliocentric theory.Currently a series of problems like nature res... "Digital Earth"is a leap in the process of mankind learning about the Earth after the great geographical discovery of Copernicus,Galileoi’s heliocentric theory.Currently a series of problems like nature resources,environment,zoology and disaster have threatened the survival and development of mankind. In recent years,long term and solid 展开更多
关键词 digital earth earth SYSTEM SCIENCE GEOSCIENCES
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The Application Study of “Digital Earth” in Geological Heritage Resources and Constructing Geological Parks
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作者 Xuelian Zhao,Lihua Zhan Faculty of the Earth Sciences,China University of Geosciences(Wuhan),Wuhan 430074,China. 《地学前缘》 EI CAS CSCD 北大核心 2009年第S1期300-300,共1页
"Digital Earth"is one of integrated scientific technology based on development of information technology and modern space telemetry,and it possesses some special features such as application of great amount ... "Digital Earth"is one of integrated scientific technology based on development of information technology and modern space telemetry,and it possesses some special features such as application of great amount of geography data,which can describe the Earth in three dimensions and with higher resolution,i.e."virtual earth":the ordinary user also can readily obtain some information through certain means.Visualization and virtual reality are one 展开更多
关键词 digital earth RECREATIONAL GEOLOGY and management of GEOLOGICAL parks application STUDY
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Effect of Adding Rare Earth Element on Cemented Carbide YT14 by Digital Image
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作者 孙丽虹 贺从训 +3 位作者 林晨光 汪有明 石云华 张曙光 《Journal of Rare Earths》 SCIE EI CAS CSCD 1996年第4期302-304,共3页
The properties of the cemented carbides with RE-addition were improved in our research.there is a 10% increase of the transverse rupture strength(T.R.S) of YT14RE as compared with that of YT14.The hardness and the den... The properties of the cemented carbides with RE-addition were improved in our research.there is a 10% increase of the transverse rupture strength(T.R.S) of YT14RE as compared with that of YT14.The hardness and the density of YT14RE are higher than that of YT14.The cast steel was cut at a speed of 140 m/min by cutting tcols which made from YT14RE and YT14.The wear resistant of the former is 1.5 time of the latter.The samples of YT14RE and YT14 were ground and polished(the content of the RE elements is less than 0.10 wt%).This paper studied the effect of adding rare earth element on cemented carbide by digital image. 展开更多
关键词 Rare earths Cemented carbide YT14 digital image
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Digitizing the Undigitized: Converting Traditional Archaeological Records into Computerized, Three-Dimensional Site Reconstruction
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作者 Nira Alperson-Afil 《Journal of Geographic Information System》 2019年第6期747-765,共19页
Archaeological excavation involves disintegration, removal, and reassembly of the archaeological record;as such it is considered by many to be an unrepeatable, destructive activity. This perception has contributed to ... Archaeological excavation involves disintegration, removal, and reassembly of the archaeological record;as such it is considered by many to be an unrepeatable, destructive activity. This perception has contributed to an advancement in archaeological practice, namely, the development of computerized recording systems that digitally record archaeological excavations spatially and volumetrically during fieldwork. This paper is concerned with those archaeological sites where digital field recording has not been done. These sites, recorded by traditional methods, should not be excluded from attempts to restructure the spatial, volumetric, and stratigraphic archaeological data. A thorough methodology for the conversion of traditional records into digitized data is presented, including the detailed procedures required for three-dimensional plotting of recorded data—both the excavated material and the drawn site maps and cross-sections. Finally, the use of these methods is demonstrated on a complex Early to Middle Pleistocene site, illustrating the benefits of digitization and three-dimensional reconstruction in resolving stratigraphic and spatial questions. 展开更多
关键词 digital ARCHAEOLOGY GEOGRAPHIC Information Systems Archaeological Recording Methods three-dimensional RECONSTRUCTION Model
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Three-dimensional(3D) Printing Technology Assisted by Minimally Invasive Surgery for Pubic Rami Fractures 被引量:8
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作者 Wen-bo NIE Fa-gang YE +4 位作者 Jian-lin MA Jiang-ping YU Ming-xing WANG Zhen-hua ZHANG Fu-jie SUN 《Current Medical Science》 SCIE CAS 2018年第5期827-833,共7页
The feasibility of three-dimensional (3D) printing technology cgmbined with minimally invasive surgery in the treatment of pubic rami fractures was explored.From August 2015 to October 2017,a series of 30 patients who... The feasibility of three-dimensional (3D) printing technology cgmbined with minimally invasive surgery in the treatment of pubic rami fractures was explored.From August 2015 to October 2017,a series of 30 patients who underwent surgical stabilization of their anterior pelvic ring (all utilizing the 3D printing technology)by one surgeon at a single hospital were studied.The minimally invasive incisions were made through anterior inferior cilia spine and pubic nodule.Data collected included the operative duration,the blood loss,the damage of the important tissue,the biographic union and therecovery of the function after the operation.Measurements on inlet and outlet pelvic cardiograph were made immediately post-operation and at all follow-up clinic visits.The scores of reduction and function were measured during follow-up.Results showed that the wounds of 30 patients were healed in the first stage,and there was no injury of important structures such as blood vessels and nerves.According to the Matta criteria,excellent effectiveness was obtained in 22 cases and good in 8 cases.According to the functional evaluation criteria of Majeed,excellent effectiveness was obtained in 21 cases and good in 9 cases.It was suggested that the 3D printing technology assisted by minimally invasive surgery can better evaluate the pelvic fracture before operation,which was helpful in plate modeling, and can shorten surgery duration and reduce intraoperative blood loss and complications. The positioning accuracy was improved,and better surgical result was finally achieved. 展开更多
关键词 digital design three-dimensional printing ANTERIOR ring PELVIC FRACTURES MINIMALLY INVASIVE surgery
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The Main Content,Technical Support and Enforcement Strategy of Digital Agriculture 被引量:6
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作者 Liang Yong Lu Xiushan +1 位作者 Zhang Degui Liang Fu 《Geo-Spatial Information Science》 2002年第1期68-73,共6页
This paper deals with the content,purpose and significance of digital agriculture,and gives a brief introduction to digital earth,digital China and digital agriculture abroad.The main content of digital agriculture in... This paper deals with the content,purpose and significance of digital agriculture,and gives a brief introduction to digital earth,digital China and digital agriculture abroad.The main content of digital agriculture includes the construction of database,Metadata standard,monitoring system,forecasting and decision_making system,information_releasing system.The main technical supports of digital agriculture are 3S technology,Metadata management technology,fast_handling technology of remote sensing,the technology of computer wide_band network and virtual reality,intelligent agriculture machinery and field real_time information collecting technology.The advantages of implementing digital agriculture in China and the problems worthy of attention are pointed out as well. 展开更多
关键词 digital earth digital China digital agriculture network technology METADATA 3S technology
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“Deep-time Digital Basin” Based on Big Data and Artificial Intelligence 被引量:2
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作者 FENG Zhiqing LIAN Peiqing 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2019年第S01期14-16,共3页
1 Introduction Information technology has been playing an ever-increasing role in geoscience.Sphisicated database platforms are essential for geological data storage,analysis and exchange of Big Data(Feblowitz,2013;Zh... 1 Introduction Information technology has been playing an ever-increasing role in geoscience.Sphisicated database platforms are essential for geological data storage,analysis and exchange of Big Data(Feblowitz,2013;Zhang et al.,2016;Teng et al.,2016;Tian and Li,2018).The United States has built an information-sharing platform for state-owned scientific data as a national strategy. 展开更多
关键词 deep-time digital earth(DDE) deep-time digital basin(DDB) BIG data artificial intelligent knowledge base
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