Towards Interoperable Environmental Security Applications — The Role of Open Geospatial Service Platform

Author(s):  
Thomas Usländer
2014 ◽  
Vol 1070-1072 ◽  
pp. 843-848
Author(s):  
Xiao Long Fan ◽  
Jin Quan Zhao

The prominent role of cascading outages in recent blackouts has created a need in security applications for evaluating line outage distribution factors (LODFs) under the multiple-line outages. Two fast algorithms of LODFs with multiple-line outages are proposed in this paper. In the first method, the double-line outage LODFs are expressed in terms of single-line outage LODFs, and it can be extended to N-k (k≥2) contingencies without any complex matrix operation through the recursive theory. In the second method, a computationally efficient expression of LODFs based on power transfer distribution factors (PTDFs) in pre-contingency network is presented. Numerical simulations are carried out on IEEE 14 and 118-bus test systems. The results show that both methods can effectively improve the computation speed of multiple-line outage LODFs.


Author(s):  
Gerard P Cachon ◽  
Kaitlin Daniels ◽  
Ruben Lobel
Keyword(s):  

2017 ◽  
Vol 19 (3) ◽  
pp. 368-384 ◽  
Author(s):  
Gérard P. Cachon ◽  
Kaitlin M. Daniels ◽  
Ruben Lobel
Keyword(s):  

Author(s):  
Elyta, Elyta, ◽  

The efforts to save the environment have actually been carried out, both through awareness to the community and stakeholders. One of the actors who play an important role in saving the environment is the community through the business world. This gave birth to a model, namely ecopreneurship. This paper aims to find a model of the role of non-government actors in realizing ecopreneurship based on environmental security. The method used to analyze this is a descriptive method with a qualitative approach. The results of this study found that ecopreneurship is an effort made in order to preserve the sustainable on environmental security by the role of non-government actors. The role of non-government actors is implemented through the role of Karang Taruna Batu Bejamban, waste banks, and sustainable environmental management in the context of realizing ecopreneurship.


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