Results 1 to 10 of about 1,306,509 (289)

Photodiode-based time zero determination for ultrafast electron microscopy

open access: yesStructural Dynamics, 2023
Pump-probe experiments in ultrafast electron microscopy require temporal overlap between the pump and probe pulses. Accurate measurements of the time delay between them allows for the determination of the time zero, the moment in time where both pulses ...
S. T. Kempers   +5 more
doaj   +1 more source

RF acceleration of ultracold electron bunches

open access: yesStructural Dynamics, 2023
The ultrafast and ultracold electron source, based on laser cooling and trapping of atomic gas and its subsequent near-threshold two-step photoionization, is capable of generating electron bunches with a high transverse brightness at energies of roughly ...
D. F. J. Nijhof   +5 more
doaj   +1 more source

Collisional microwave heating and wall interaction of an ultracold plasma in a resonant microwave cavity

open access: yesNew Journal of Physics, 2022
Recently, we introduced a resonant microwave cavity as a diagnostic tool for the study of ultracold plasmas (UCPs). This diagnostic allows us to study the electron dynamics of UCPs non-destructively, very fast, and with high sensitivity by measuring the ...
M A W van Ninhuijs   +2 more
doaj   +1 more source

Effects of Transcranial Direct Current Stimulation of Bilateral Supplementary Motor Area on the Lower Limb Motor Function in a Stroke Patient with Severe Motor Paralysis: A Case Study

open access: yesBrain Sciences, 2022
In patients with severe motor paralysis, increasing the excitability of the supplementary motor area (SMA) in the non-injured hemisphere contributes to the recovery of lower limb motor function.
Sora Ohnishi   +5 more
doaj   +1 more source

Vegetation canopy height estimation in dynamic tropical landscapes with TanDEM‐X supported by GEDI data

open access: yesMethods in Ecology and Evolution, 2023
Vegetation canopy height is a relevant proxy for aboveground biomass, carbon stock, and biodiversity. Wall‐to‐wall information of canopy height with high spatial resolution and accuracy is not yet available on large scales.
Michael Schlund   +4 more
doaj   +1 more source

Single-cycle surface plasmon polaritons on a bare metal wire excited by relativistic electrons

open access: yesNature Communications, 2016
Here, the authors demonstrate how ultra-short bunches of relativistic electrons produce coherent transition radiation at the tip of a thin wire. The radiation then propagates as a powerful surface plasmon polariton along the wire, illustrating the ...
W.P.E.M. op ‘t Root   +3 more
doaj   +1 more source

Beyond the Features: The Role of Consistency in Impressions of Trust

open access: yesSocial Psychological Bulletin, 2022
To be successful in social life, perceivers need to form impressions of other people's trustworthiness. Current models of this process emphasize the role of specific descriptive content–individual verbal and visual features determining trust impressions.
Piotr Winkielman, Andrzej Nowak
doaj   +1 more source

Time-of-flight electron energy loss spectroscopy using TM110 deflection cavities

open access: yesStructural Dynamics, 2016
We demonstrate the use of two TM110 resonant cavities to generate ultrashort electron pulses and subsequently measure electron energy losses in a time-of-flight type of setup.
W. Verhoeven   +6 more
doaj   +1 more source

Time-of-flight electron energy loss spectroscopy by longitudinal phase space manipulation with microwave cavities

open access: yesStructural Dynamics, 2018
The possibility to perform high-resolution time-resolved electron energy loss spectroscopy has the potential to impact a broad range of research fields. Resolving small energy losses with ultrashort electron pulses, however, is an enormous challenge due ...
W. Verhoeven   +5 more
doaj   +1 more source

Language-Specific Synchronization of Neural Networks in the Human Brain [PDF]

open access: yesАктуальні питання масової комунікації, 2020
This study examines language-specific characteristics of the electric activity in bilinguals’ brains. The aim of this study was to evaluate language-specific characteristics of functional connectivity related to the perception of verbal information in ...
Sergii Tukaiev   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy