Results 1 to 10 of about 4,496,883 (327)

Effect of different source terms and inflow direction in atmospheric boundary modeling over the complex terrain site of Perdigão [PDF]

open access: yesWind Energy Science, 2023
Assessing wind conditions in complex terrain requires computational fluid dynamics (CFD) simulations incorporating an accurate parameterization of forest canopy effects and Coriolis effects.
K. Venkatraman   +5 more
doaj   +1 more source

Wind Turbine-Fuel Cell Power System for Supplying Isolated Sites

open access: yesRevue des Énergies Renouvelables, 2023
The present work aims to develop a dynamic Wind Turbine-Fuel Cell (WT-FC) hybrid power system under Simulink to meet the energy needs of dwellings in the south of Algeria.
Abdelghani Meziane   +2 more
doaj   +1 more source

Investigation of Rotor Efficiency with Varying Rotor Pitch Angle for a Coaxial Drone

open access: yesDrones, 2022
Coaxial rotor systems are appealing for multirotor drones, as they increase thrust without increasing the vehicle’s footprint. However, the thrust of a coaxial rotor system is reduced compared to having the rotors in line.
Knut Erik Teigen Giljarhus   +2 more
doaj   +1 more source

Structural features of the A2TiSi2O8 (A-Ba and Pb) compounds [PDF]

open access: yesJournal of Advanced Dielectrics, 2020
X-ray diffraction studies of synthesized Ba2TiSi2O8 have shown that this compound has a fresnoite structure and is characterized by a polar phase P4bm at room temperature.
Svetlana Weber   +5 more
doaj   +1 more source

Role of synaptic structural plasticity in impairments of spatial learning and memory induced by developmental lead exposure in Wistar rats. [PDF]

open access: yesPLoS ONE, 2014
Lead (Pb) is found to impair cognitive function. Synaptic structural plasticity is considered to be the physiological basis of synaptic functional plasticity and has been recently found to play important roles in learning and memory.
Yongmei Xiao   +7 more
doaj   +1 more source

Investigation of Metastable Low Dimensional Halometallates

open access: yesMolecules, 2022
The solvothermal synthesis, structure determination and optical characterization of five new metastable halometallate compounds, [1,10-phenH][Pb3.5I8] (1), [1,10-phenH2][Pb5I12]·(H2O) (2), [1,10-phen][Pb2I4] (3), [1,10-phen]2[Pb5Br10] (4) and [1,10-phenH]
Navindra Keerthisinghe   +6 more
doaj   +1 more source

Atomic Structure Calculations for Pb+70 and Pb+71

open access: yesActa Physica Polonica A, 2022
This paper describes a detailed theoretical analysis of energies, Lande g-factors, lifetimes for excited levels, and wavelengths, transition probabilities, and weighted oscillator strengths for electric dipole transitions for Mg- and Na-like lead. Recently, the accurate atomic knowledge of highly ionized heavy atoms has been attractive for many fields,
Konan, G. G., Usta, B. Karacoban
openaire   +1 more source

Investigation of Influence of Adjustments in Cyclist Arm Position on Aerodynamic Drag Using Computational Fluid Dynamics

open access: yesProceedings, 2020
In professional cycling, even small adjustments in position could mean that valuable seconds are gained over the course of a time-trial race. This study investigates the influence of arm position on the aerodynamic drag of a cyclist.
Knut Erik Teigen Giljarhus   +2 more
doaj   +1 more source

The Magnetic Entropy Changes in Pb Doped Ni-Mn-Cu-Ga Alloys [PDF]

open access: yesArchives of Metallurgy and Materials, 2020
Effect of Pb addition on magnetocaloric properties of Ni50Mn18,75Cu6,25-aPbaGa25 (a = 1, 2, 3, 4, 5) alloys was investigated experimentally. The magnetic measurements conducted at low field of 4 kA/m showed that addition of Pb led to separation of the ...
K. Sielicki   +3 more
doaj   +1 more source

Intestinal Anti-Inflammatory Activity of Terpenes in Experimental Models (2010–2020): A Review

open access: yesMolecules, 2020
Inflammatory bowel diseases (IBDs) refer to a group of disorders characterized by inflammation in the mucosa of the gastrointestinal tract, which mainly comprises Crohn’s disease (CD) and ulcerative colitis (UC). IBDs are characterized by inflammation of
Maria Elaine Araruna   +5 more
doaj   +1 more source

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