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...

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...

The essential drive of building a new countryside lies in scientific and technological innovation. Through expounding the scientific and technological demonstration benefits and roles of new countryside building in poverty-stricken mountainous area, the major problems and hardships of new...

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...

<section xml:id="fut21653-sec-0001"> We develop the Nelson–Siegel model in the context of option‐implied volatility term structure and study the time series of volatility components. Three components, corresponding to the level, slope, and curvature of the volatility term structure, can be interpreted as the long‐,...</section>

Increasing levels of wind energy in modern electrical power system is initiating a need for accurate analysis and estimation of transient stability of wind turbine generation systems. This paper investigates the transient behaviors and possible direct methods for transient stability evaluation...

A large, by a factor of ≈103−104, enhancement of Hall effect in cosputtered magnetic granular metals such as (NiFe)x-(SiO2)1−x near the metal-insulator transition has been termed giant Hall effect (GHE). It is associated with a high resistivity which increases slowly with decreasing...

We studied resistivity, magnetoresistivity and magnetization in granular FeSiO2 films. In the hopping region, magnetoresistance was found to be as large as −5%, and is isotropic for different measurement geometry, which is the signature of giant magnetoresistance due to a spin-dependent...

As a result of rapid economic development, China is consuming roughly 500 million tons of oil. At present, it is the second-largest consumer of oil worldwide. Furthermore, the increase in its oil consumption has been the highest in the world for 13 consecutive years. The total mileage of...