Results 51 to 60 of about 36,023 (164)

Fendioxypyracil, a new and systemic PPO‐inhibiting herbicide for X‐spectrum weed control

Pest Management Science, EarlyView.
This graphical abstract presents the discovery and synthesis of PPO herbicide structures with a central pyridine core, showing molecular conformations, dose–response inhibition curves for PPO1 and PPO2, and comparative weed and grass control efficacy of fendioxypyracil versus other herbicides in greenhouse and field trials.
Tobias Seiser, Aimone Porri, Philipp Johnen, Silke Zeyer, Judith Wahrheit, Michael Betz, Breght Vandenberghe, Scott Asher, Liliana Parra Rapado   +8 more
wiley   +1 more source

Optimum aerodynamic design for wind-lens turbine

Journal of Fluid Science and Technology, 2016
An optimum aerodynamic design method has been developed for the wind-lens turbine. The wind-lens turbine has a brimmed diffuser around a turbine rotor, which is referred to as wind-lens.
Nobuhito OKA, Masato FURUKAWA, Kenta KAWAMITSU, Kazutoyo YAMADA   +3 more
doaj   +1 more source

A numerical proof of the Betz–Joukowsky limit

Renewable Energy
According to the Betz–Joukowsky limit, the maximum power coefficient of a wind turbine is 16/27. This limit is obtained assuming a priori that the disk is radially uniformly-loaded. In other words, the proof of the limit does not evaluate the optimum type of the load distribution, but it directly speculates that radially uniform load is the optimal one.
Bontempo, R., Manna, M.
openaire   +2 more sources

The Betz–Joukowsky limit: on the contribution to rotor aerodynamics by the British, German and Russian scientific schools

Wind Energy, 2011
ABSTRACTThe derivation of the efficiency of an ideal wind turbine has been attributed to the three famous scientists of the three aerodynamic research schools in Europe during the first decades of the previous century: Lanchester, Betz and Joukowsky. However, detailed reading of their classical papers has shown that Lanchester did not accept Froude's ...
Valery L. Okulov, Gijs A.M. van Kuik
openaire   +1 more source

Integrating Business Process Management With the Sustainable Development Goals: A Multidimensional Framework for Systemic Sustainability

Sustainable Development, EarlyView.
ABSTRACT This study proposes a multidimensional framework to integrate Business Process Management (BPM) with the Sustainable Development Goals (SDGs), addressing gaps in research and practice. Through a bibliometric science mapping using keyword co‐occurrence network analysis in VOSviewer (Scopus 2015–2024), we identify five thematic clusters ...
Silvia Inês Dallavalle de Pádua, Maira Frey Riffel, Étore Braga e Santos, Luiz Sávio Pires de Castro, Camila de Araujo   +4 more
wiley   +1 more source

Two-point density correlations of quasicondensates in free expansion [PDF]

, 2010
We measure the two-point density correlation function of freely expanding quasicondensates in the weakly interacting quasi-one-dimensional (1D) regime.
Betz, T., Bücker, R., Demler, E., Hofferberth, S., Imambekov, A., Koller, Ch., Manz, S., Mazets, I. E., Perrin, A., Schmiedmayer, J., Schumm, T.   +10 more
core   +2 more sources

Analytical studies of new airfoils for wind turbines [PDF]

, 1981
Computer studies were conducted to analyze the potential gains associated with utilizing new airfoils for large wind turbine rotor blades. Attempts to include 3-dimensional stalling effects were inconclusive.
Calhoun, J. T., Wentz, W. H., Jr.
core   +1 more source

Multilayer Graph-Based Trajectory Planning for Race Vehicles in Dynamic Scenarios

, 2020
Trajectory planning at high velocities and at the handling limits is a challenging task. In order to cope with the requirements of a race scenario, we propose a far-sighted two step, multi-layered graph-based trajectory planner, capable to run with ...
Betz, Johannes, Lienkamp, Markus, Stahl, Tim, Wischnewski, Alexander   +3 more
core   +1 more source

Urban wind energy conversion: the potential of ducted turbines [PDF]

, 2008
The prospects for urban wind power are discussed. A roof-mounted ducted wind turbine, which uses pressure differentials created by wind flow around a building, is proposed as an alternative to more conventional approaches.
Grant, Andrew, Johnstone, Cameron, Kelly, Nick   +2 more
core   +1 more source

A Prospective Trial Comparing L4/5 Instrumented Posterolateral Fusion for Degenerative Spondylolisthesis Performed with Local Bone Graft Alone versus Posterior Iliac Crest Graft and Local Bone Graft versus Beta Tricalcium Phosphate and Local Bone Graft

Global Spine Journal, 2014
Introduction Prospective randomized radiological comparative study on the status of fusion in single level instrumented posterolateral lumbar fusion in low-grade spondylolisthesis using local bone graft versus iliac crest bone graft and local bone versus
G. Raj Dhakal, S. Basu, J. Deep Ghosh, S. Rathinavelu, A. Biswas, D. Patel, T. Sarangi   +6 more
doaj   +1 more source