Search results for "2010"
showing 10 items of 449 documents
Work-life balance during the COVID-19 outbreak: the case of Latvia
2020
This paper aims to shed light on work-life balance in Latvia during the state of emergency The COVID-19 outbreak has led many governments to introduce lockdowns While imposed restrictions may help to contain the spread of the virus, they may also result in substantial damage to population well-being The COVID-19 outbreak in Latvia demonstrates the extent and ways in which socio-demographics factors have determined different patterns of behaviour, attitudes, employment changes and harmonised work and life balance The study describes the chronological development of COVID-19 in the country It describes labour migration to and from Latvia before the COVID-19 outbreak It provides geographical f…
Speciation of neptunium during sorption and diffusion in natural clay
2016
In argillaceous rocks, which are considered as a potential host rock for nuclear waste repositories, sorption and diffusion processes govern the migration behaviour of actinides like neptunium. For the safety analysis of such a repository, a molecular-level understanding of the transport and retardation phenomena of radioactive contaminants in the host rock is mandatory. The speciation of Np during sorption and diffusion in Opalinus Clay was studied at near neutral pH using a combination of spatially resolved synchrotron radiation techniques. During the sorption and diffusion experiments, the interaction of 8 μM Np(V) solutions with the clay lead to the formation of spots at the clay-water …
Les relations entre les Lagides et les cités crétoises
2013
Le royaume des Ptolemees ne se resuma jamais a l’Egypte : a peine l’eut-il recue au titre de satrapie au partage de Babylone, apres la mort d’Alexandre le Grand en 323 a.C., que Ptolemee fils de Lagos s’empara de la Cyrenaique voisine. Quelques annees plus tard, il tenta de conquerir la Syrie en 319-318, puis 312, mais n’y parvint qu’en 301. En 310, ce fut le tour de Chypre, ensuite perdue au profit de Demetrios en 306 et recouvree definitivement en 295-294. Le roi d’Egypte acquit egalement d...
A single-point approach based on nonactive power factor for the assessment of harmonic distortion sources in power systems
2022
This paper presents a study on the use of power factor indicators for the assessment of harmonic distortion sources in power systems. In detail the analysis is focused on the comparison between the proposed nonactive power factor (Q1/N) and the indicators of the IEEE Std. 1459-2010, and on the indicators feasibility in identifying the presence of harmonic distortion sources. As discussed in the paper, the proposed indicator can be evaluated with good accuracy, by means of typical power quantities measurements at the point of common coupling (PCC). Thus its measurement can be feasibly implemented in commercial platforms used for smart metering applications. To verify the proposal validity, s…
Modelling of a hydro-pneumatic system for heave compensation
2018
This paper presents a mathematical model of the dynamic behaviour of a passive heave compensation system. The main purpose is to develop a model that enables cost-efficient prototyping and testing of the control system in an active heave compensator. The physics are described by first principles, and result in 21 ordinary differential equations. Temperature calculations are included as an option during simulation in order to investigate its effect on the results. Similarly is a non-ideal gas law (Redlich-Kwong equation) implemented and compared to the ideal gas law. Verification against field data shows that the model is in good accordance with real-life drilling operations. It is further s…
Experimental calibration of flat jacks for in-situ testing of masonry
2018
Flat-jack testing method is one of the most commonly used techniques for the structural assessment of existing masonry structures. Single and double flat jacks are usually adopted to evaluate the acting normal stress, or the compressive behaviour of masonry material. Test procedures are codified by international standards (e.g., A.S.T.M D4729-87; C1196-04; C1197-04, R.I.L.E.M TC 177–MDT D.4; R.I.L.E.M. TC 177–MDT D.5), which provide the preliminary calibration of an experimental coefficient (km) and of the effective area (Aeff), which determination influences significantly the reliability of the test. This article presents the result of an experimental study on the calibration of flat jacks…
"Table 4" of "Study of D*+ production in nu/mu charged current interactions in the NOMAD experiment."
2002
Mean values of the various variables.
"Table 1" of "Study of D*+ production in nu/mu charged current interactions in the NOMAD experiment."
2002
Distribution in Feynman X.
"Table 2" of "Study of D*+ production in nu/mu charged current interactions in the NOMAD experiment."
2002
Distribution in transverse momentum.
"Table 4" of "Production of D, D* and D(s) Mesons in 200-GeV/c pi-, K- and p Si Interactions"
1987
No description provided.