The Effects of Process R&D in an Asymmetric Duopoly Under Cournot and Supply Function Competitions

Who Should Practice Price Discrimination in an Asymmetric Duopoly?

SSRN Electronic Journal ◽

10.2139/ssrn.812524 ◽

2008 ◽

Cited By ~ 2

Author(s):

Kutsal Dogan ◽

Ernan Haruvy ◽

Ram C. Rao

Keyword(s):

Price Discrimination ◽

Asymmetric Duopoly

Download Full-text

Retrieval and Evaluation of Chlorophyll-a Concentration in Reservoirs with Main Water Supply Function in Beijing, China, Based on Landsat Satellite Images

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph18094419 ◽

2021 ◽

Vol 18 (9) ◽

pp. 4419

Author(s):

Yuequn Lai ◽

Jing Zhang ◽

Yongyu Song ◽

Zhaoning Gong

Keyword(s):

Remote Sensing ◽

Water Supply ◽

Chlorophyll A ◽

Phosphorus Concentration ◽

Landsat 8 ◽

Supply Function ◽

Estimation Model ◽

Nitrogen And Phosphorus ◽

Chlorophyll A Concentration ◽

Guanting Reservoir

Remote sensing retrieval is an important technology for studying water eutrophication. In this study, Guanting Reservoir with the main water supply function of Beijing was selected as the research object. Based on the measured data in 2016, 2017, and 2019, and Landsat-8 remote sensing images, the concentration and distribution of chlorophyll-a in the Guanting Reservoir were inversed. We analyzed the changes in chlorophyll-a concentration of the reservoir in Beijing and the reasons and effects. Although the concentration of chlorophyll-a in the Guanting Reservoir decreased gradually, it may still increase. The amount and stability of water storage, chlorophyll-a concentration of the supply water, and nitrogen and phosphorus concentration change are important factors affecting the chlorophyll-a concentration of the reservoir. We also found a strong correlation between the pixel values of adjacent reservoirs in the same image, so the chlorophyll-a estimation model can be applied to each other.

Download Full-text