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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    

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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    

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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    

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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: 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    

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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    

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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    

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CLIMATE-CHANGE-INDUCED TEMPORAL VARIATION IN PRECIPITATION INCREASES NITROGEN LOSSES FROM INTENSIVE CROPPING

Frontiers of Agricultural Science and Engineering 2022, Volume 9, Issue 3,   Pages 457-464 doi: 10.15302/J-FASE-2022452

Abstract:

● A simple model was used to evaluate how increasing temporal variability

Keywords： crop yield     fertilizer timing     nitrogen loss     precipitation variability     toy model    

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Machine learning for detecting mesial temporal lobe epilepsy by structural and functional neuroimaging

Baiwan Zhou, Dongmei An, Fenglai Xiao, Running Niu, Wenbin Li, Wei Li, Xin Tong, Graham J Kemp, Dong Zhou, Qiyong Gong, Du Lei

Frontiers of Medicine 2020, Volume 14, Issue 5,   Pages 630-641 doi: 10.1007/s11684-019-0718-4

Abstract: Mesial temporal lobe epilepsy (mTLE), the most common type of focal epilepsy, is associated with functional

Keywords： mesial temporal lobe epilepsy     functional magnetic resonance imaging     structural magnetic resonance imaging    

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Assessment of temporal and spatial variations in water quality using multivariate statistical methods

Xue LI,Pengjing LI,Dong WANG,Yuqiu WANG

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 6,   Pages 895-904 doi: 10.1007/s11783-014-0736-z

Abstract: This study evaluated the temporal and spatial variations of water quality data sets for the Xin'anjiangDA identified three significant parameters (temperature, pH and ) to distinguish temporal groups with

Keywords： Xin'anjiang River     multivariable statistical analysis     temporal variation     spatial variation     water quality    

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Distribution and temporal variability of the solar resource at a site in south-east Norway

Muyiwa S. ADARAMOLA

Frontiers in Energy 2016, Volume 10, Issue 4,   Pages 375-381 doi: 10.1007/s11708-016-0426-6

Abstract: Globally, solar energy is expected to play a significant role in the changing face of energy economies in the near future. However, the variability of this resource has been the main barrier for solar energy development in most locations around the world. This paper investigated the distribution and variability of solar radiation using the a 10-year (2006 to 2015) data collected at Sørås meteorological station located at latitude 59° 39′ N and longitude 10° 47′E, about 93.3 m above sea level (about 30 km from Oslo), in south-eastern part of Norway. It is found that on annual basis, the total number of days with a global solar radiation of less than 1 kWh/(m ·d) is 120 days while the total number of days with an expected global solar radiation greater than 3 kWh/(m ·d) is 156 days (42.74%) per year. The potential energy output from a horizontally placed solar collector in these 156 days is approximately 75% of the estimated annual energy output. In addition, it is found that the inter-annual coefficient of variation of the global solar radiation is 4.28%, while that of diffuse radiation is 4.96%.

Keywords： coefficient of variation     global solar radiation     diffuse ratio     albedo     PV energy systems    

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A Spatial–Temporal Network Perspective for the Propagation Dynamics of Air Traffic Delays Article

Qing Cai, Sameer Alam, Vu N. Duong

Engineering 2021, Volume 7, Issue 4,   Pages 452-464 doi: 10.1016/j.eng.2020.05.027

Abstract: Specifically, we model air traffic scenarios using spatial-temporal networks with airports as the nodesBased on the constructed spatial–temporal networks, we suggest three metrics—magnitude, severity

Keywords： Air traffic     Transport systems     Delay propagation dynamics     Spatial–temporal networks    

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Mass concentrations and temporal profiles of PM

Liu YANG,Ye WU,Jiaqi LI,Shaojie SONG,Xuan ZHENG,Jiming HAO

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 4,   Pages 675-684 doi: 10.1007/s11783-014-0731-4

Abstract: Mass concentrations of PM , PM and PM were measured near major roads in Beijing during six periods: summer and winter of 2001, winter of 2007, and periods before, during and after the 2008 Beijing Olympic Games. Since the control efforts for motor vehicles helped offset the increase of emissions from the rapid growth of vehicles, the averaged PM concentrations at roadsides during the sampling period between 2001 and 2008 fluctuated over a relatively small range. With the implementation of temporary traffic control measures during the Olympics, a clear “V” shaped curve showing the concentrations of particulate matter and other gaseous air pollutants at roadsides over time was identified. The average concentrations of PM , PM , CO and NO decreased by 31.2%, 46.3%, 32.3% and 35.4%, respectively, from June to August; this was followed by a rebound of all air pollutants in December 2008. Daily PM concentrations near major roads exceeded the National Ambient Air Quality Standard (Grade II) for 61.2% of the days in the non-Olympic periods, while only for 12.5% during the Olympics. The mean ratio of PM /PM near major roads remained relatively stable at 0.55 (±0.108) on non-Olympic days. The ratio decreased to 0.48 (±0.099) during the Olympics due to a greater decline in fine particles than in coarse-mode PM. The ratios PM /PM fluctuated over a wide range and were statistically different from each other during the sampling periods. The average ratios of PM /PM on non-Olympic days were 0.71.

Keywords： particulate matter     traffic     control measure     Beijing Olympic Games    

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Allocation of grassland, livestock and arable based on the spatial and temporal analysis for food demand

Huilong LIN, Ruichao LI, Yifan LIU, Jingrong ZHANG, Jizhou REN

Frontiers of Agricultural Science and Engineering 2017, Volume 4, Issue 1,   Pages 69-80 doi: 10.15302/J-FASE-2017140

Abstract: To explore the distribution of food demand and the projected trend in future food demand in China, this paper analyzed the change in current (1998–2012) per-capita demand for grain, grain-consuming and herbivorous livestock products, and predicted the food demand in 2020. The results indicated that in 1998–2012, the national per-capita consumption of grain ration declined by about 36.66%, and the per-capita consumption of grain-consu-ming and herbivorous livestock products increased by about 48% and 34.09%, respectively. The grain-consu-ming livestock products have become the primary source of both calories and protein for consumers. The proportion of herbivorous livestock products in consumer diets has increased steadily and there has been huge potential in substituting beef and mutton for pork in this dynamic market. The demand for food in different provinces of China is highly variable, which is important for planning grassland agriculture development and ensuring food safety. The demand for grain, and grain-consuming and herbivorous livestock products will increase by about 3.3%, 20% and 14% respectively by 2020. Based on the food demand and trend in the development of grassland agriculture, the 31 provinces in China are divided into three priority groups for grassland agriculture development.

Keywords： arable land equivalent unit (ALEU)     food equivalent unit (FEU)     food security     grassland agriculture     time trend prediction    

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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

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

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Corrigendum to “High-Speed Railway Train Timetable Conflict Prediction Based on Fuzzy Temporal

He Zhuang, Liping Feng, Chao Wen, Qiyuan Peng, Qizhi Tang

Engineering 2017, Volume 3, Issue 1,   Pages 150-150 doi: 10.1016/J.ENG.2017.01.002

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Title Author Date Type Operation

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

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

Yuan XU,Ruqin XIE,Yuqiu WANG,Jian SHA

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

CLIMATE-CHANGE-INDUCED TEMPORAL VARIATION IN PRECIPITATION INCREASES NITROGEN LOSSES FROM INTENSIVE CROPPING

Journal Article

Machine learning for detecting mesial temporal lobe epilepsy by structural and functional neuroimaging

Baiwan Zhou, Dongmei An, Fenglai Xiao, Running Niu, Wenbin Li, Wei Li, Xin Tong, Graham J Kemp, Dong Zhou, Qiyong Gong, Du Lei

Journal Article

Assessment of temporal and spatial variations in water quality using multivariate statistical methods

Xue LI,Pengjing LI,Dong WANG,Yuqiu WANG

Journal Article

Distribution and temporal variability of the solar resource at a site in south-east Norway

Muyiwa S. ADARAMOLA

Journal Article

A Spatial–Temporal Network Perspective for the Propagation Dynamics of Air Traffic Delays

Qing Cai, Sameer Alam, Vu N. Duong

Journal Article

Mass concentrations and temporal profiles of PM

Liu YANG,Ye WU,Jiaqi LI,Shaojie SONG,Xuan ZHENG,Jiming HAO

Journal Article

Allocation of grassland, livestock and arable based on the spatial and temporal analysis for food demand

Huilong LIN, Ruichao LI, Yifan LIU, Jingrong ZHANG, Jizhou REN

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

Corrigendum to “High-Speed Railway Train Timetable Conflict Prediction Based on Fuzzy Temporal

He Zhuang, Liping Feng, Chao Wen, Qiyuan Peng, Qizhi Tang

Journal Article