Results 61 to 70 of about 36,023 (164)

Science, Values, and the Priority of Evidence [PDF]

open access: yes, 2018
It is now commonly held that values play a role in scientific judgment, but many arguments for that conclusion are limited. First, many arguments do not show that values are, strictly speaking, indispensable.
Magnus, P. D.
core   +1 more source

Jet Energy Loss and Mach Cones in pQCD vs. AdS/CFT [PDF]

open access: yes, 2008
We compare away-side hadron correlations with respect to tagged heavy quark jets computed within a weakly coupled pQCD and a strongly coupled AdS/CFT model. While both models feature similar far zone Mach and diffusion wakes, the far zone stress features
Betz, Barbara   +3 more
core   +2 more sources

Ökomorphologie : Integration von Form, Funktion und Ökologie bei der Analyse morphologischer Strukturen [PDF]

open access: yes, 2008
Organisms are complex entities whose study has necessitated an increasingly reductionistic stance in modern biology (CAPLAN 1987). As a consequence, biology as a science has been split up into numerous sub-disciplines.
Betz, Oliver
core  

A branch-adaptive framework for multi-timescale wind power forecasting: Optimization via hybrid evolutionary algorithm and physics-informed modeling

open access: yesInternational Journal of Electrical Power & Energy Systems
High-precision multi-timescale wind power forecasting is critical for grid security. However, existing unified architectures often struggle to simultaneously capture high-frequency transients in real-time horizons and long-term dependencies in day-ahead ...
Minan Tang   +6 more
doaj   +1 more source

Optimizing Aerodynamic Efficiency of Motionless Paired Airfoil Wind Turbine: A Numerical and Experimental Study

open access: yesEnergies
The motionless wind turbine with opposing paired airfoils offers a compact and noiseless alternative to conventional wind energy systems, but its performance remains well below the Betz limit, limiting urban deployment potential.
Syed Murawat Abbas Naqvi   +6 more
doaj   +1 more source

EU Emission trading – better job second time around? [PDF]

open access: yes, 2007
The EU Emission Trading Scheme (EU ETS) for CO2-emissions from energy and industry installations reflects a paradigm shift towards market-based instruments for environmental policy in the EU. The centerpieces of the EU ETS are National Allocation Plans (
Betz, Regina   +2 more
core   +1 more source

Electron-translation effects in heavy-ion scattering [PDF]

open access: yes, 2006
The origin and importance of electron-translation effects within a molecular description of electronic excitations in heavy-ion collisions is investigated.
Greiner, Walter   +2 more
core  

The use of fibre Bragg gratings for ultrasonic Lamb wave detection and source location [PDF]

open access: yes, 2006
There is an increasing interest in the use of ultrasonic Lamb waves for materials characterisation and the detection of structural defects. Fibre Bragg gratings offer some significant advantages over more traditional transducers such as piezoelectrics ...
Thursby, G.J.
core   +1 more source

Comparing different freeze-out scenarios in azimuthal hadron correlations induced by fast partons

open access: yes, 2009
I review the linearized hydrodynamical treatment of a fast parton traversing a perturbative quark-gluon plasma. Using numerical solutions for the medium's response to the fast parton, I obtain the medium's distribution function which is then used in a ...
A. Adare   +25 more
core   +1 more source

Reaching the Betz limit via the Newton's method for one (1)-dimensional optimisation

open access: yesApplied Mathematical Sciences
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

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