Results 11 to 20 of about 6,045 (208)

21st-Century Mangrove Expansion Along the Southeastern United States. [PDF]

Glob Chang Biol
Global warming is driving poleward range shifts worldwide, including the northward expansion of tropical mangroves along the Atlantic coast of North America. In this region, warming winters are enabling mangroves to encroach into salt marsh–dominated temperate latitudes, potentially transforming wetland ecosystem function and services. To assess future
Enes Gramoso LIA, Carroll D, Cavanaugh KC, Bardou R, Osland MJ, Van der Stocken T.   +5 more
europepmc   +2 more sources

Smart Solutions: A New Direct Current Electric Machine Design to Reduce Weight and Enhance Efficiency. [PDF]

Glob Chall
This article introduces a smart solution for the design of a brush DC motor with a winding‐free rotor (DCFR). The proposed model simplifies manufacturing, reduces material costs, and enhances efficiency. Designed for variable speed and solar power applications, the DCFR achieves 91.8% efficiency and a 21% weight reduction compared to conventional ...
Ivliev D, Bashynska I, Kosenkov V, Boiko A, Niekrasova L, Chepovskyi I.   +5 more
europepmc   +2 more sources

Going with the flow: Leveraging reef-scale hydrodynamics for upscaling larval-based restoration. [PDF]

Ecol Appl
Abstract Anthropogenic pressures are impacting coastal marine ecosystems, necessitating large‐scale interventions to accelerate recovery. Propagule‐based restoration holds the potential for restoring shallow coastal systems at hectare scales by harnessing natural dispersal.
Gouezo M, Langlais C, Beardsley J, Roff G, Harrison PL, Thomson DP, Doropoulos C.   +6 more
europepmc   +2 more sources

<i>Sargassum</i> Enrichment in Mesoscale Eddies of the Great Atlantic <i>Sargassum</i> Belt. [PDF]

Geophys Res Lett
Abstract Pelagic Sargassum has increased dramatically in the past decade, primarily in the annually recurrent Great Atlantic Sargassum Belt (GASB) that extends from the coast of West Africa to the Gulf of Mexico. Using satellite observations of Sargassum density and mesoscale eddies from 2011 to 2023, we investigate whether more Sargassum can be found ...
Zhang Y, Barnes BB, McGillicuddy DJ, Hu C.   +3 more
europepmc   +2 more sources

Effect of windage heating on a micro high-speed rotor-stator cavity

Propulsion and Power Research, 2022
The main objective of this work is to investigate the effect of windage heating on the micro high-speed rotor-stator cavity. The influences of centrifugal force and spacing on the windage heating are analyzed with and without the change of gap ratio ...
Jianyu Liu, Guoqiang Xu, Xi Zhao, Bensi Dong, Yongkai Quan   +4 more
doaj   +1 more source

Reducing Head-Gimbal-Assembly Windage for High-Track-Density Hard Disk Drives

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2008
The windage of a head gimbal assembly (HGA) is the flow-induced vibration affecting head slider positioning in the off-track direction. Reducing the windage is important for increasing the track density of hard disk drives (HDDs).
Shigeo NAKAMURA, Yoshiyuki HIRONO, Ryohei ADUMA, Haruhide TAKAHASHI, Shinobu HAGIYA, Kousaku WAKATSUKI, Shozo SAEGUSA   +6 more
doaj   +1 more source

Windage measurements in a rotor stator cavity with rotor mounted protrusions and bolts [PDF]

, 2012
This paper reports an experimental investigation of the windage associated with enclosed rotor-stator systems with superposed throughflow, as commonly found in gas turbine engines.
Coren, Daniel, Long, Christopher, Miles, Anna Louise   +2 more
core   +1 more source

Application of an unstructured overset method for predicting the gear windage power losses

Engineering Applications of Computational Fluid Mechanics, 2021
Enhancing the efficiency of gear systems is of significance to reduce fuel consumption and overall weight. Windage power losses become prevailing in high-speed gear systems, such as aero-engine applications.
Y. Dai, L. Xu, X. Zhu, B. Ouyang
doaj   +1 more source

Research on Windage Yaw Flashovers of Transmission Lines under Wind and Rain Conditions

Energies, 2019
Windage yaw flashovers under strong wind and rain conditions leave a negative impact on the safe operation of transmission lines. However, the mechanism behind this is not well known yet.
Liqiang An, Yongyu Guan, Zhijian Zhu, Ronglun Zhang   +3 more
doaj   +1 more source

Numerical Analysis for Wetting Behaviors of an Oil Jet Lubricated Spur Gear

Lubricants, 2022
As it is widely employed in the aeronautical transmission system, a better understanding of the oil jet lubrication behavior is vital to determine the total system energy consumption.
Yu Dai, Chongyu Liang, Xi Chen, Xiang Zhu   +3 more
doaj   +1 more source