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Aerobic granular sludge (AGS), as a novel wastewater treatment technology, is hindered by the slow granulation in application. There seems to be a close relationship between nitrate and AGS granulation, but little is known about this. This study specifically investigated the influence of nitrate...
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This study presents the auxiliary damping control with the reactive power loop on the rotor-side converter of doubly-fed induction generator (DFIG)-based wind farms to depress the sub-synchronous resonance oscillations in nearby turbogenerators. These generators are connected to a series...
Persistent link: https://www.econbiz.de/10010764860
We examined the effect of different irrigation and nitrogen (N) fertilizer levels on Zea mays L. (maize) on nitrate-nitrogen (NO3−-N) leaching under lysimeter conditions. To do so, we used large lysimeters (2.5m×2.5m×2.0m deep) at the Maize Technological Innovation Center (MTIC) of the...
Persistent link: https://www.econbiz.de/10011047895
Purpose Information technology-enabled gig platforms connect freelancers with consumers to provide short-term services or asset sharing. The growth of gig economy, however, has been accompanied by controversy, and, recently, food delivery platforms have been criticized for using data-driven...
Persistent link: https://www.econbiz.de/10014826162
We develop the Nelson-Siegel model in the context of option-implied volatility term structure and study the time-series of three volatility components in the model. We show that these components, corresponding to the level, slope and curvature of the volatility term structure, can be interpreted...
Persistent link: https://www.econbiz.de/10010892147
Power cable engineering is a critical method for urban power supply, and ductbank laying of cables is a way of underground cable lines. Considering the cost and construction, MPP pipes with poor heat dissipation performance are often used in ductbank. Many cables are arranged densely in the...
Persistent link: https://www.econbiz.de/10012179538
Purpose: The New Zealand (NZ) dairy industry faces the challenge of increasing productivity and dealing with public concerns over nutrient pollution. The effective policy needs to address regional differences in productivity and fertilizer use. The purpose of this paper is to investigate how...
Persistent link: https://www.econbiz.de/10012066820
Economic theory provides a coherent framework for analysing the elements of growth and sustainable development. Robust policies and appropriate institutional structures are essential to achieving sustainable development. Environmental problems are rooted in failed markets and their resolution...
Persistent link: https://www.econbiz.de/10012115507