Results 31 to 40 of about 2,739,360 (202)

A tip-based source of femtosecond electron pulses at 30keV [PDF]

open access: yes, 2013
We present a nano-scale photoelectron source, optimized towards ultrashort pulse durations and well-suited for time-resolved diffraction experiments. A tungsten tip, mounted in a suppressor-extractor electrode configuration, allows the generation of 30 ...
Baum, Peter   +7 more
core   +3 more sources

Carrier-envelope phase dependence in single-cycle laser pulse propagation with the inclusion of counter-rotating terms

open access: yes, 2012
We focus on the propagation properties of a single-cycle laser pulse through a two-level medium by numerically solving the full-wave Maxwell-Bloch equations.
Cui N   +5 more
core   +1 more source

Speciesism, Subjectivity, and Becoming-Other in Michel Faber’s Novel Under the Skin

open access: yesPulse, 2023
This paper undertakes a critical analysis of Michel Faber’s novel, Under the Skin (2000), with the aim to explore ethical relations between different species.
Iana Fishova
doaj   +1 more source

ANALYSIS AND DEVELOPMENT OF THE BUBBLE MODEL OF THE FORMATION STAGE OF HIGH-VOLTAGE BREAKDOWN OF THE WATER GAP

open access: yesElectrical engineering & Electromechanics, 2018
Purpose. A high-voltage underwater electric explosion, realized by discharging a capacitor into a water gap, is characterized by three main stages: the stage of formation of the plasma channel, the channel stage and post-discharge one. Substantially, the
V. G. Zhekul   +4 more
doaj   +1 more source

(AI)sland Ecologies: Toward New Metaphors and Models of Artificial Intelligence

open access: yesPulse, 2023
This article examines the application of ecological metaphors to socio-technical systems. This is a long and contested tradition that has often been critiqued for misapplying biological principles to the understanding of socio-technical systems.
Rhea Jiang
doaj   +1 more source

Speech analyzer [PDF]

open access: yes, 1977
A speech signal is analyzed by applying the signal to formant filters which derive first, second and third signals respectively representing the frequency of the speech waveform in the first, second and third formants.
Lokerson, D. C.
core   +1 more source

Detection of off-pulse emission from PSR B0525+21 and PSR B2045-16

open access: yes, 2011
We report the detection of off-pulse emission from two long period pulsars PSR B0525+21 and PSR B2045-16 using the Giant Metrewave Radio Telescope (GMRT).
Athreya   +25 more
core   +1 more source

Superluminal optical pulse propagation in nonlinear coherent media [PDF]

open access: yes, 2002
The propagation of light-pulse with negative group-velocity in a nonlinear medium is studied theoretically. We show that the necessary conditions for these effects to be observable are realized in a three-level $\Lambda$-system interacting with a ...
A. Dogariu   +31 more
core   +2 more sources

Real-space observation of the dissociation of a transition metal complex and its concurrent energy redistribution

open access: yesNature Communications
Mechanistic insights into photodissociation dynamics of transition metal carbonyls, like Fe(CO)5, are fundamental for understanding active catalytic intermediates.
Aviad Schori   +25 more
doaj   +1 more source

ДОСЛІДЖЕННЯ ВПЛИВУ ПІДВИЩЕНИХ ТЕМПЕРАТУР НА ЕКСПЛУАТАЦІЙНІ ВЛАСТИВОСТІ ТРАНСФОРМАТОРНОГО МАСЛА Т-1500 В ПЛІВКОВИХ ІЗОЛЯЦІЙНИХ СИСТЕМАХ

open access: yesElektrotehnìka ta Elektroenergetika, 2015
Обрано критеріальні параметри, що дозволяють достовірно оцінювати термостабільність експлуатаційних властивостей діелектричних рідин. Проаналізовано зміну експлуатаційних властивостей трансформаторного масла Т-1500 в ході його взаємодії з пропіленовою і ...
A. P. Malyushevska   +2 more
doaj   +1 more source

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