Results 81 to 90 of about 78,488 (248)

Unlocking fruit dimensions: Quantification of functional traits driving plant–frugivore interactions

open access: yesApplications in Plant Sciences, EarlyView.
Abstract Fleshy fruits attract animals to ingest fruit, swallow the seeds, and release them in the landscape, thus facilitating seed dispersal and plant regeneration. Attraction of animal dispersers is achieved via attractants such as color or scent, and rewards like sugars, lipids, and micronutrients.
Linh M. N. Nguyen   +4 more
wiley   +1 more source

Geophysical Investigations at the Artemision at Amarynthos of Euboea (Greece)

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT A combination of resistivity mapping and three‐dimensional electrical resistivity tomography (ERT) was used to investigate the subsurface of the sanctuary of Artemis Amarysia in Amarynthos, Euboea (Greece), an area where archaeological remains from the Bronze Age to the post‐Byzantine period are preserved.
G. N. Tsokas   +5 more
wiley   +1 more source

Advances in Triboelectric Nanogenerators With Rotating Structure

open access: yesCarbon Energy, EarlyView.
The rotating TENG has been widely studied for its superiorities of simple structure, high efficiency, and stable output. This review introduced the four different principles of rotating TENG and offered a thorough summary for performance and application research through three‐level classification. Importantly, the current existing problems, challenges,
Chuguo Zhang   +4 more
wiley   +1 more source

Calculation of Air Gap Magnetic Field and Torque of Dual-modulation Axial Magnet Gear Motors

open access: yesJixie chuandong
A dual-modulation axial magnet gear motor (DAMGM) was proposed to address the shortcomings of the axial magnet gear motor (AMGM), which has a large overall size and low torque density(≤70 kN·m/m3).
Ge Yanjun   +4 more
doaj  

Views of the Chiral Magnetic Effect

open access: yes, 2012
My personal views of the Chiral Magnetic Effect are presented, which starts with a story about how we came up with the electric-current formula and continues to unsettled subtleties in the formula.
A. Ballon-Bayona   +46 more
core   +1 more source

Designing and experimentally testing a flux‐focusing axial flux magnetic gear for an ocean generator application

open access: yesIET electric power applications, 2019
The torque density characteristics for an axial flux magnetic gear using a flux-focusing topology is experimentally studied when using neodymium iron boron (NdFeB) rare-earth magnets. A geometric parameter sweep analysis was utilised in order to maximise
Mojtaba Bahrami Kouhshahi   +4 more
semanticscholar   +1 more source

Analysis of a Novel Brushless Doubly Fed Reluctance Generator Based Wind Energy Conversion System

open access: yesEnergy Science &Engineering, EarlyView.
BDFRG based grid connected wind energy conversion system. ABSTRACT This paper presents a grid connected Brushless Doubly‐Fed Reluctance Generator (BDFRG) based wind energy conversion system. It offers a reliable and cost‐effective solution since its brushless and cage‐less rotor structure eliminates the need for slip rings, reducing maintenance costs ...
Subir Datta   +6 more
wiley   +1 more source

Test characteristics of a welded rotor in a 36,000-rpm Lundell alternator [PDF]

open access: yes
Two four-pole Lundell-type rotors consisting of magnetic and nonmagnetic materials were fabricated by weld-depositing Inconel 625 between two sections of AISI 4617 steel. The rotors had a major diameter of 8.28 cm (3.26 in.).
Lumannick, S.   +2 more
core   +1 more source

Cm-Wavelength Total Flux and Linear Polarization Properties of Radio-Loud BL Lacertae Objects

open access: yes, 1998
Results from a long-term program to quantify the range of behavior of the cm-wavelength total flux and linear polarization variability properties of a sample of 41 radio-loud BL Lac objects using weekly to tri-monthly observations with the University of ...
Carrara E. A.   +16 more
core   +2 more sources

Timing Is Everything: How Subtle Timing Changes in MRI Echo Planar Imaging Can Significantly Alter Mechanical Vibrations and Sound Level

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Echo‐Planar Imaging (EPI) is central to fMRI, diffusion MRI, and many dynamic clinical applications, yet rapid gradient switching induces strong mechanical vibrations, generates acoustic noise, and contributes to ghosting artifacts—effects that intensify at ultra‐high fields.
Amir Seginer   +6 more
wiley   +1 more source

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