Results 91 to 100 of about 1,296,720 (203)
Abstract Recently, the socio‐economic agenda of populist radical right parties (PRRPs) has attracted growing scholarly interest, yet many studies focus specifically on positions on welfare policies. It is often argued that economic issues are of secondary importance to PRRPs, or that their positions are deliberately blurred to maximize electoral appeal.
Emmanuel Dalle Mulle +3 more
wiley +1 more source
Reaching the Betz limit via the Newton's method for one (1)-dimensional optimisation
The $Betz$ theory states that a horizontal axis wind turbine can only extract less than $\frac{16}{27}$ ($59.3\%$) of the kinetic energy of the wind. The value $\frac{16}{27}$ ($0.\overline{592}$) is called the $Betz$ limit. In $1919$, $Albert$ $Betz$ used a method that is analytic to derive the $Betz$ theory and henceforth finding the $Betz$ limit. In
Reccab O. Manyala +3 more
openaire +1 more source
Annette Betz & Jennifer Barnes oral history interview and transcript
This recording and transcript form part of a collection of oral history interviews conducted as part of the Houston Jewish History Archive.The Medallion is an assisted living facility in Houston, Texas which is a part of Seven Acres, a Jewish senior care
Kleiner, Stephanie +2 more
core
Classical one-dimensional momentum theory suggests that there is an upper limit to the power that can be extracted from the available wind resource. In the present work, we relax the assumption of constant velocity and investigate how the power efficiency of a turbine is affected by a non-uniform velocity field in the base flow. The analysis shows that
Arslan Salim Dar +2 more
openaire +1 more source
Comparative Systematic Analysis of Gray Matter Biophysical Models on a Public Dataset
ABSTRACT Purpose Biophysical models of diffusion tailored to characterize gray matter (GM) microstructure are gaining traction in the neuroimaging community. NEXI, SMEX, SANDI, and SANDIX represent recent efforts to account for different microstructural features, such as soma contributions and inter‐compartment exchange, in the diffusion MRI (dMRI ...
Santiago Mezzano +6 more
wiley +1 more source
Outracing a National Level Model Racing Car Champion: A Hybrid Model‐Based Data‐Driven Approach
ABSTRACT This paper discusses lap time optimization, focusing on a single lap without considering opponents in autonomous racing. The paper presents a control and optimization architecture composed of a model‐based low level controller and a higher level iterative learning algorithm with the goal of obtaining the fastest qualifying lap in autonomous ...
Mustafa Alp +3 more
wiley +1 more source
Performance analysis of diffuser-augmented wind turbines with swept rotor
This work presents a novel performance analysis model of diffuser-augmented wind turbines (DAWT) with swept blades, considering the influence of diffuser efficiency and thrust. Blade element momentum theory (BEMT) is extended to incorporate the effect of
Jean C.A. Nobre +5 more
doaj +1 more source
ABSTRACT For a newly emerging kind of cascade dual‐rotor wind turbine (CDR‐WT), the coordinated control of its front and rear rotor faces significant challenges. To solve this problem, a novel modeling and control design approach is presented in this paper.
Yang Hu +3 more
wiley +1 more source
ABSTRACT Wind power has become one of the fastest growing renewable energy sources globally and plays a central role in Finland's electrical grid system, where it already accounts for approximately one quarter of total electricity generation. The increasing penetration of converter‐interfaced wind power plants introduces challenges for grid stability ...
Marek Rehtla +3 more
wiley +1 more source
Global agricultural value chains and food prices
Abstract We study the relationship between the extent of participation in global agricultural value chains (GAVCs) and food prices at the country level. Using longitudinal data on a sample of 138 countries for the period 2000–2015 and a shift‐share instrumental variable design, we study how the extent of a country's participation in GAVCs in a given ...
Bernhard Dalheimer, Marc F. Bellemare
wiley +1 more source

