Resource Type

Journal Article 62

Year

2023 8

2022 3

2021 7

2020 4

2019 1

2018 5

2017 5

2016 7

2015 7

2014 2

2013 2

2012 2

2011 3

2008 2

2007 3

2006 1

open ︾

Keywords

PM2.5 3

Coronavirus disease 2019 2

spatial and temporal distribution 2

temporal variation 2

2D speckle tracking echocardiography 1

Tetrasphaera 1

API protocol mining 1

Aerosols 1

Air pollution control 1

Air traffic 1

Anthropogenic interventions 1

Antibody response 1

ArcGIS 1

Atlas 1

Atmospheric age 1

BPA 1

Beijing Olympic Games 1

Big-data platform 1

Brain 1

open ︾

Search scope:

排序： Display mode:

A multiscale-contour-based interpolation framework for generating a time-varying quasi-dense point cloud

Chu-hua HUANG,Dong-ming LU,Chang-yu DIAO

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 5,   Pages 422-434 doi: 10.1631/FITEE.1500316

Abstract: hardware platform, we propose an efficient framework to reconstruct 3D dynamic objects using a multiscale-contour-basedOur framework takes full advantage of spatio-temporal-contour consistency.model, and two contours which belong to the same view at different times, corresponding to point-, contourWe obtain a higher frame rate, spatio-temporal-coherence, and a quasi-dense point cloud sequence with

Keywords： Multi-view video     Free-viewpoint video     Point-pair     Multiscale-contour-based interpolation     Spatio-temporal-contour    

HTML PDF Collect

Intelligent Monitoring System Based on Spatio–Temporal Data for Underground Space Infrastructure Review

Bowen Du, Junchen Ye, Hehua Zhu, Leilei Sun, Yanliang Du

Engineering 2023, Volume 25, Issue 6,   Pages 194-203 doi: 10.1016/j.eng.2022.07.016

Abstract:

Intelligent sensing, mechanism understanding, and the deterioration forecasting based on spatio–temporal big data not only promote the safety of the infrastructure but also indicate the basic theory

Keywords： Structure health monitoring     Underground space infrastructure     Machine learning     Spatio–temporal data    

HTML PDF Collect

Spatio-temporal variations of water quality in Yuqiao Reservoir Basin, North China

Yuan XU,Ruqin XIE,Yuqiu WANG,Jian SHA

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 4,   Pages 649-664 doi: 10.1007/s11783-014-0702-9

Abstract: applied to analyze the water quality status of Yuqiao Reservoir Basin, North China, for assessing its spatio-temporalaffecting spatial variations, and Temp, pH and NO -N were identified as significant variables affecting temporal

Keywords： Fuzzy comprehensive assessment     multivariate statistical analysis     water quality    

HTML PDF Collect

Effect of land use and land cover change on soil erosion and the spatio-temporal variation in Liupan

Bin QUAN, M. J. M. R?MKENS, Rui LI, Fang WANG, Jie CHEN

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 4,   Pages 564-572 doi: 10.1007/s11783-011-0348-9

Abstract: To present the relationship between land use/cover change and spatio-temporal variation of soil erosion

Keywords： land use/land cover change     soil erosion     geographical information system     remote sensing     Liupan Mountain Region    

HTML PDF Collect

A Video Scan Format Conversation Algorithm Based onSpatio-temporal Weight and Edge Direction

Ding Yong,Lu Shengli,Shi Longxing

Strategic Study of CAE 2007, Volume 9, Issue 10,   Pages 49-54

Abstract:  In this paper,  a de-interlacing algorithm based on spatio-temporal weight and edge direction It consists of motion detection,  low-angle edge detection,  and spatio-temporal weight The proposed method using spatio-temporal adaptive interpolation can obtain quite good display

Keywords： scan format conversation     motion estimation     edge detection     spatio-temporal adaptive interpolation    

HTML PDF Collect

Study on the Mechanism and Cause Mode of the Karst Collapse——Taking Tai’an-Laiwu for Example

Gao Zongjun

Strategic Study of CAE 2008, Volume 10, Issue 4,   Pages 38-43

Abstract: The spatio-temporal distributing characteristics of karst collapse are summed up in detail.

Keywords： Tai’an-Laiwu     karst collaps     spatio-temporal distributing characteristics     forming mechanism     cause mode    

HTML PDF Collect

A Flexible Moving Objects Segmentation Method

Zhao Yanling,Zhang Zhichao,Gao Zhenming,Zhang Qingchao

Strategic Study of CAE 2006, Volume 8, Issue 5,   Pages 84-87

Abstract: The method of moving object segmentation is proposed with spatio-temporal threshold information.

Keywords： spatio-temporal     moving regions     moving objects     morphological gradient operator     flexibility    

HTML PDF Collect

An algorithm of neighbor relationship oriented contour tree building

Guo Peipei,Li Chengming,Yin Yong

Strategic Study of CAE 2013, Volume 15, Issue 5,   Pages 42-46

Abstract:

A contour tree has been found many important applications in extractionA regular contour tree expressing the spatial relationship of contours is difficult to build, even withA new method is proposed in this paper： classify contours into close group and open group; build contourtree for each group respectively; finally amalgamate these two contour trees into one.

Keywords： contour tree     neighbor relationship     elevation value     close contour     unclosed contour    

HTML PDF Collect

Image automatic mosaics based on contour phase correlation

ZHANG Jing, HU Zhiping, OU Zongying, LIU Zhitai

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 2,   Pages 228-234 doi: 10.1007/s11465-007-0040-8

Abstract: The image planar mosaics is studied, and an image automatic mosaics algorithm on the basis of contourTo begin with, by taking into account mere translations and rotations between images, a contour phaseThe contour phase correlation is an improvement on the conventional phase correlation in two aspects:

Keywords： function     conventional     multiple     algorithm     correlation algorithm    

HTML PDF Collect

Chord error constraint based integrated control strategy for contour error compensation

Tie ZHANG, Caicheng WU, Yanbiao ZOU

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 4,   Pages 645-658 doi: 10.1007/s11465-020-0601-7

Abstract: the traditional cross-coupling control method cannot meet the requirements for tracking accuracy and contourcontrol accuracy in large curvature positions, an integrated control strategy of cross-coupling contourTo reduce the contour error, a PI-type cross-coupling controller is designed, with its stability beinganalyzed by using the contour error transfer function.control accuracy in biaxial contour following tasks.

Keywords： cross-coupling controller     contour error     tracking error     position error compensator     feed rate regulator    

HTML PDF Collect

Realtime prediction of hard rock TBM advance rate using temporal convolutional network (TCN) with tunnel

Zaobao LIU; Yongchen WANG; Long LI; Xingli FANG; Junze WANG

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 4,   Pages 401-413 doi: 10.1007/s11709-022-0823-3

Abstract: This paper proposes a real-time predictive model of TBM advance rate using the temporal convolutional

Keywords： hard rock tunnel     tunnel bore machine advance rate prediction     temporal convolutional networks     soft    

HTML PDF Collect

Temporal trend of mortality from major cancers in Xuanwei, China

Hualiang Lin,Bofu Ning,Jihua Li,Guangqiang Zhao,Yunchao Huang,Linwei Tian

Frontiers of Medicine 2015, Volume 9, Issue 4,   Pages 487-495 doi: 10.1007/s11684-015-0413-z

Abstract: This study aimed to investigate the temporal trend of eight major cancers in Xuanwei County using dataThe temporal trend could be partly explained by changes in risk factors, but it also may be due to theFurther epidemiological studies are warranted to systematically examine the underlying reasons for the temporal

Keywords： cancer     mortality     Xuanwei     temporal trend    

HTML PDF Collect

The temporal changes of the concentration level of typical toxic organics in the river sediments around

Qiang Li, Xiong Xu, Yaoyao Fang, Ruiyang Xiao, Donghong Wang, Wenjue Zhong

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 6, doi: 10.1007/s11783-018-1054-7

Abstract:

The current situation of typical organics in the sediments around Beijing was unclear.

56 kinds of typical toxic organics were detected in this article.

Historical data was compared with the data in this study.

The change of different organics in the sediments around Beijing was concluded.

Keywords： Organic compounds     Endocrine disrupters     Sediments     Concentration     Temporal changes    

HTML PDF Collect

The effect of texture and irrigation on the soil moisture vertical-temporal variability in an urban artificial

Xiaofeng ZHANG,Xu ZHANG,Guanghe LI

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 2,   Pages 269-278 doi: 10.1007/s11783-014-0672-y

Abstract: Soil moisture variability in natural landscapes has been widely studied; however, less attention has been paid to its variability in the urban landscapes with respect to the possible influence of texture stratification and irrigation management. Therefore, a case study was carried out in the Beijing Olympic Forest Park to continuously monitor the soil in three typical profiles from 26 April to 11 November 2010. The texture stratification significantly affected the vertical distribution of moisture in the non-irrigated profile where moisture was mostly below field capacity. In the profile where irrigation was sufficient to maintain moisture above field capacity, gravity flow led to increased moisture with depth and thus eliminated the influence of texture. In the non-irrigated sites, the upper layer (above 80 cm) exhibited long-term moisture persistence with the time scale approximating the average rainfall interval. However, a coarse-textured layer weakened the influence of rainfall, and a fine-textured layer weakened the influence of evapotranspiration, both of which resulted in random noise-like moisture series in the deeper layers. At the irrigated site, frequent irrigation neutralized the influence of evapotranspiration in the upper layer (above 60 cm) and overshadowed the influence of rainfall in the deeper layer. As a result, the moisture level in the upper layer also behaved as a random noise-like series; whereas due to deep transpiration, the moisture of the deep layer had a persistence time-scale longer than a month, consistent with characteristic time-scales found for deep transpiration.

Keywords： moisture vertical distribution     moisture temporal variation     texture stratification     irrigation     meteorological    

HTML PDF Collect

Spatial and Temporal Distribution of PM

Xiao-hong Chen,Xiang-bo Tang

Frontiers of Engineering Management 2016, Volume 3, Issue 2,   Pages 171-181 doi: 10.15302/J-FEM-2016017

Abstract: Utilizing the initial hourly monitoring data of PM concentrations at 23 monitoring sites across the Chang-Zhu-Tan city cluster between January 2013 and February 2014 that released in Real-time Air Quality Reporting System in Hunan Province, this paper draws diagrams and analyzes the change rule of the pollutants concentration over time. In addition, this paper studies the regional distribution of PM seasonal pollution in the vicinity of the monitoring sites using ArcGIS geographic information system with the Kriging interpolation method. On this basis, this paper puts forward some effective control strategies to cope with regional PM pollution combined with the information of industry distribution and development status in the Chang-Zhu-Tan city cluster.

Keywords： PM2.5     spatial and temporal distribution     ArcGIS     the chang-Zhu-Tan city cluster    

HTML PDF Collect

Title Author Date Type Operation

A multiscale-contour-based interpolation framework for generating a time-varying quasi-dense point cloud

Chu-hua HUANG,Dong-ming LU,Chang-yu DIAO

Journal Article

Intelligent Monitoring System Based on Spatio–Temporal Data for Underground Space Infrastructure

Bowen Du, Junchen Ye, Hehua Zhu, Leilei Sun, Yanliang Du

Journal Article

Spatio-temporal variations of water quality in Yuqiao Reservoir Basin, North China

Yuan XU,Ruqin XIE,Yuqiu WANG,Jian SHA

Journal Article

Effect of land use and land cover change on soil erosion and the spatio-temporal variation in Liupan

Bin QUAN, M. J. M. R?MKENS, Rui LI, Fang WANG, Jie CHEN

Journal Article

A Video Scan Format Conversation Algorithm Based onSpatio-temporal Weight and Edge Direction

Ding Yong,Lu Shengli,Shi Longxing

Journal Article

Study on the Mechanism and Cause Mode of the Karst Collapse——Taking Tai’an-Laiwu for Example

Gao Zongjun

Journal Article

A Flexible Moving Objects Segmentation Method

Zhao Yanling,Zhang Zhichao,Gao Zhenming,Zhang Qingchao

Journal Article

An algorithm of neighbor relationship oriented contour tree building

Guo Peipei,Li Chengming,Yin Yong

Journal Article

Image automatic mosaics based on contour phase correlation

ZHANG Jing, HU Zhiping, OU Zongying, LIU Zhitai

Journal Article

Chord error constraint based integrated control strategy for contour error compensation

Tie ZHANG, Caicheng WU, Yanbiao ZOU

Journal Article

Realtime prediction of hard rock TBM advance rate using temporal convolutional network (TCN) with tunnel

Zaobao LIU; Yongchen WANG; Long LI; Xingli FANG; Junze WANG

Journal Article

Temporal trend of mortality from major cancers in Xuanwei, China

Hualiang Lin,Bofu Ning,Jihua Li,Guangqiang Zhao,Yunchao Huang,Linwei Tian

Journal Article

The temporal changes of the concentration level of typical toxic organics in the river sediments around

Qiang Li, Xiong Xu, Yaoyao Fang, Ruiyang Xiao, Donghong Wang, Wenjue Zhong

Journal Article

The effect of texture and irrigation on the soil moisture vertical-temporal variability in an urban artificial

Xiaofeng ZHANG,Xu ZHANG,Guanghe LI

Journal Article

Spatial and Temporal Distribution of PM

Xiao-hong Chen,Xiang-bo Tang

Journal Article