Results 21 to 30 of about 1,220,527 (364)

Deployment and Measurement of Quality of Service Parameters for Triple Play Services in Optical Access Networks

open access: yesCommunications, 2017
Broadband telecommunication networks are the future of communication and distribution of multimedia services. Thanks to the high transmission potential and capacity of optical fibres, the optical networks are predestined to be more widely used in ...
Jan Latal   +4 more
doaj   +1 more source

Screening and many-body effects in two-dimensional crystals: Monolayer MoS 2 [PDF]

open access: yes, 2016
We present a systematic study of the variables affecting the electronic and optical properties of two-dimensional (2D) crystals within ab initio $GW$ and $GW$ plus Bethe-Salpeter equation ($GW$-BSE) calculations.
D. Qiu, F. Jornada, S. Louie
semanticscholar   +1 more source

QoE beyond the MOS: an in-depth look at QoE via better metrics and their relation to MOS [PDF]

open access: yesQuality and User Experience, 2016
While Quality of Experience (QoE) has advanced very significantly as a field in recent years, the methods used for analyzing it have not always kept pace. When QoE is studied, measured or estimated, practically all the literature deals with the so-called
T. Hossfeld   +3 more
semanticscholar   +1 more source

Impact of the Hydrolysis and Methanolysis of Bidesmosidic Chenopodium quinoa Saponins on Their Hemolytic Activity

open access: yesMolecules, 2022
Saponins are specific metabolites abundantly present in plants and several marine animals. Their high cytotoxicity is associated with their membranolytic properties, i.e., their propensity to disrupt cell membranes upon incorporation.
Philippe Savarino   +5 more
doaj   +1 more source

Automatic Parameter Extraction Technique for MOS Structures by C-V Characterization Including the Effects of Interface States

open access: yesMeasurement Science Review, 2016
An automatic MOS structure parameter extraction algorithm accounting for quantum effects has been developed and applied in the semiconductor device analyzer Agilent B1500A.
Ryazantsev D. V., Grudtsov V. P.
doaj   +1 more source

Distance education in the conditions of a Youth Center of Sociotherapy (YCS) in the opinions of the pupils' parents

open access: yesJournal of Modern Science, 2023
Objectives The main goal of this article was to learn the opinions of over 50 parents of students with special educational needs on the ways and the effectiveness of emergency remote teaching and to come up with ideas for future improvements to ...
Krzysztof Dziurzyński   +1 more
doaj   +1 more source

Band gap engineering of MoS$_2$ upon compression [PDF]

open access: yes, 2016
Molybdenum disulfide (MoS$_2$) is a promising candidate for 2D nanoelectronic devices, that shows a direct band-gap for monolayer structure. In this work we study the electronic structure of MoS$_2$ upon both compressive and tensile strains with first ...
López-Suárez, Miquel   +2 more
core   +2 more sources

Electroreduction of Cu (II) and Se (IV) ions on Vitreous Carbon Electrode

open access: yesEurasian Chemico-Technological Journal, 2009
The electroreduction of copper (II) and selenium (IV) ions on vitreous carbon electrode from sulfate electrolyte has been studied. The studies have shown that during the concurrent reduction copper is first reduced within 0.15-0.05 V range of potentials.
K.A. Urazov, M.B. Dergacheva
doaj   +1 more source

Ocena jakości usług telefonii pakietowej [PDF]

open access: yesZeszyty Naukowe Warszawskiej Wyższej Szkoły Informatyki, 2013
W artykule kompleksowo opisano podejście do zagadnienia oceny jakości usług telefonii pakietowej. Na wstępnie dokonano systematyki pojęć związanych z oceną jakości, wyjaśniając m.in.
Robert Janowski
doaj   +1 more source

MoS₂ decoration by Mo-atoms and the MoS₂-Mo-graphene heterostructure: a theoretical study.

open access: yesPhysical chemistry chemical physics : PCCP, 2015
Here we propose a completely new covalent heterostructure based on graphene and self-decorated MoS2 monolayers. Detailed investigation of the decoration process of the MoS2 surface by Mo adatoms was performed using first principles DFT methods. Comparison between valence-only and semicore pseudopotentials was performed to correctly describe the ...
Kvashnin, D. G.   +3 more
openaire   +3 more sources

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