Design of an index system for deep groundwater management efficiency evaluation: A case study in Tianjin City, China

2016 ◽  
Vol 26 (3) ◽  
pp. 325-338 ◽  
Author(s):  
Tian Nan ◽  
Jingli Shao ◽  
Xiaoyuan Cao ◽  
Qiulan Zhang ◽  
Yali Cui
Keyword(s):  
Groundwater Management ◽  
Index System ◽  
Efficiency Evaluation ◽  
Deep Groundwater ◽  
Management Efficiency ◽  
Tianjin City

Assessing the management efficiency of shipping company from a congestion perspective: A case study of Hapag-Lloyd

2021 ◽  
Vol 209 ◽  
pp. 105617
Author(s):  
Zhijie Wang ◽  
Xianhua Wu ◽  
Kai Lisa Lo ◽  
Jackson Jinhong Mi
Keyword(s):  
Shipping Company ◽  
Management Efficiency

scholarly journals Visibility Graph Power Geometric Aggregation Operator and Its Application in Water, Energy and Food Efficiency Evaluation

2020 ◽  
Vol 17 (11) ◽  
pp. 3891
Author(s):  
Lihua Liu ◽  
Jing Huang ◽  
Huimin Wang
Keyword(s):  
Time Series ◽  
Time Series Data ◽  
Coupling Efficiency ◽  
Aggregation Operator ◽  
Visibility Graph ◽  
Series Data ◽  
Efficiency Evaluation ◽  
Geometric Operator ◽  
The Relationship

In the real decision-making process, there are so many time series values that need to be aggregated. In this paper, a visibility graph power geometric (VGPG) aggregation operator is developed, which is based on the complex network and power geometric operator. Time series data are converted into a visibility graph. A visibility matrix is developed to denote the links among different time series values. A new support function based on the distance of two values are proposed to measure the support degree of each other when the two time series values have visibility. The VGPG operator considers not only the relationship but also the similarity degree between two values. Meanwhile, some properties of the VGPG operator are also investigated. Finally, a case study for water, energy, and food coupling efficiency evaluation in China is illustrated to show the effectiveness of the proposed operator. Comparative analysis with the existing research is also offered to show the advantages of the proposed method.

Relevance of spatio-temporal rainfall variability regarding groundwater management challenges under global change: case study in Doñana (SW Spain)

2020 ◽  
Vol 34 (9) ◽  
pp. 1289-1311 ◽  
Author(s):  
N. Naranjo-Fernández ◽  
C. Guardiola-Albert ◽  
H. Aguilera ◽  
C. Serrano-Hidalgo ◽  
M. Rodríguez-Rodríguez ◽  
...  
Keyword(s):  
Global Change ◽  
Groundwater Management ◽  
Rainfall Variability ◽  
Sw Spain ◽  
Spatio Temporal
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