Genetic Algorithms for Optimal Reservoir Dispatching
- Chang Jian-xia, H. Qiang, Wang Yi-min
- Computer Science
- 1 August 2005
It is concluded that with three basic generators selection, crossover and mutation genetic algorithm could search the optimum solution or near-optimal solution to a complex water resources problem.
Multivariate flood risk assessment based on the secondary return period
The definitions of multivariate"OR","AND"and secondary return periods and their differences in identifying the safe and dangerous regions in a critical level are introduced and the rationality and reliability of information provided from them in flood risk management and engineering design were analyzed.
Detecting Runoff Variation of the Mainstream in Weihe River
- H. Qiang, Jingjing Fan
- Computer Science, Environmental ScienceJournal of Applied Mathematics
- 18 December 2013
The runoff change in Weihe River is significantly decreasing with the climate change and the huge increasing of human activities. The analysis of the variation changes of runoff would provide…
A Multiple Time Scales Analysis of the Runoff Variation Along the Upper Reaches of the Yellow River
- H. Qiang
- Environmental Science
- 2003
By applying the theory of wavelet transformation and the 1919-1996 natural runoff records of Lanzhou hydrometric station, the runoff variation along the upper reaches of the Yellow River is studied.…
Virtual water theory and its application in food security.
- Lu Shibao, H. Qiang, M. Kai, Z. Yongyong
- Environmental Science
- 2010
A new adaptive autoreclosure scheme to distinguish transient faults from permanent faults
- H. Qiang, Li Yongli, Li Bin
- EngineeringProceedings. International Conference on Power…
- 10 December 2002
This paper brings forward a whole new scheme of distinguishing transient faults from permanent faults based on the carrier channel of carrier protections of EHV transmission lines. By using the…
The Application of Wavelet Analysis in Hydrological Sequence Trend Analysis
- Xue Xiao-jie, Huang Si-xia, H. Qiang, Lei Yan
- EngineeringInternational Conferences on Biomedical and…
- 16 May 2008
Based on the distribution characteristic of frequencies of hydrological time serial and wavelet analysis, the time serial made of different frequencies is decomposed into the low and high frequencies…
The Theory of Water Resources System Jieke and Its Application Prospects
- Tong Chun-sheng, H. Qiang
- Computer Science
- 2004
The research results show that the protection and exchange function of water resources system Jieke is dual and identical with the functions of protection, exploitation, utilization of water Resources system and optimal allocation adjustment.
The climate-environment changes in the south of Gurbantunggut desert since 80ka BP.
- H. Qiang, Zhou Xingjia
- Environmental Science
- 15 June 2000
Sensitivity Analysis of the Pose Error of Machine Tool
- H. Qiang
- Materials Science
- 2009
The modeling method of combining multi-body system theory with transformation of homogeneous coordinates is introduced and the method, step and key point of identifying the sensitive errors of machine are described.
...
...