scholarly journals A General Approach to Predicting Ecological Responses to Environmental Flows: Making Best Use of the Literature, Expert Knowledge, and Monitoring Data

2014 ◽  
Vol 31 (4) ◽  
pp. 505-514 ◽  
Author(s):  
J. A. Webb ◽  
S. C. Little ◽  
K. A. Miller ◽  
M. J. Stewardson ◽  
I. D. Rutherfurd ◽  
...  
2017 ◽  
Vol 25 (3) ◽  
pp. 168-175 ◽  
Author(s):  
Esko K. Juuso

Abstract Performance improvement is taken as the primary goal in the asset management. Advanced data analysis is needed to efficiently integrate condition monitoring data into the operation and maintenance. Intelligent stress and condition indices have been developed for control and condition monitoring by combining generalized norms with efficient nonlinear scaling. These nonlinear scaling methodologies can also be used to handle performance measures used for management since management oriented indicators can be presented in the same scale as intelligent condition and stress indices. Performance indicators are responses of the process, machine or system to the stress contributions analyzed from process and condition monitoring data. Scaled values are directly used in intelligent temporal analysis to calculate fluctuations and trends. All these methodologies can be used in prognostics and fatigue prediction. The meanings of the variables are beneficial in extracting expert knowledge and representing information in natural language. The idea of dividing the problems into the variable specific meanings and the directions of interactions provides various improvements for performance monitoring and decision making. The integrated temporal analysis and uncertainty processing facilitates the efficient use of domain expertise. Measurements can be monitored with generalized statistical process control (GSPC) based on the same scaling functions.


2013 ◽  
Vol 361-363 ◽  
pp. 949-953
Author(s):  
Chang Chun Chen ◽  
La Chun Wang ◽  
Jie Song ◽  
Xue Zhang Cao

Fishways play an important role in the mitigation of negative influence of hydraulic projects on fish, and can help maintain river connectivity and fish migration in river ecological systems. Based on the current situation of fishways construction in China, this paper demonstrated the legislative prospect of environmental flows, and analyzed the historical reason of depression of fishways. Focusing on adaptable measures of fishways development to legislative and ecological water requirements, four proposals were provided, which included strengthening the supervision, promoting the ecological integration, exploring the behavior of fish, and investigating the ecohydraulics of fishways.


2018 ◽  
Vol 52 (1) ◽  
pp. 133-153 ◽  
Author(s):  
Matthew J. Colloff ◽  
Ian C. Overton ◽  
Brent L. Henderson ◽  
Jane Roberts ◽  
Julian R. W. Reid ◽  
...  

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