Search results for " platform"
showing 10 items of 411 documents
Transient response of a TLP-type floating offshore wind turbine under tendon failure conditions
2021
Abstract Among various types of floating offshore wind turbines (FOWTs), the tension leg platform (TLP) floating wind turbines have relatively small motions due to stiff tendons. Similar to TLP applications in the offshore industry, tendon failure may lead to deteriorated stability and large transient responses, which should be considered as part of accidental limit state (ALS) checks at the design stage of the TLP FOWTs. This paper takes the WindStar TLP system as a representative and investigates the transient effects of one-tendon failure on the system responses. A coupled numerical model is first established using the aero-hydro-servo-elastic simulation tool FAST. Subsequent numerical s…
Protecting emergency workers and armed forces from volatile toxic compounds: Applicability of reversible conductive polymer-based sensors in barrier …
2019
International audience; Barrier materials have wide applicability in both professional (military, medical, industrial) and non-professional(leisure and sports) fields. This paper focuses on the preparation of real conductive polymer (CP) sensors, for thestudy of the permeation of volatile toxic compounds through barrier materials. Use of such a CP sensor can helpimprove the quality of barrier materials used in protective clothing. Several types of platforms have beenmanufactured or purchased for use as comb sensors with different electrode dimensions, and a suitable methodof applying the detection layer of conductive polymers (polyaniline and poly-pyrrole) has been developed. Prepared senso…
Blockchain tehnoloģijā balstītu sistēmu izveide ar Ethereum
2016
Darba mērķis ir Ethereum decentralizētas programmatūras platformas pētīšana. Darbā tiek pētītas tehnoloģijas uz kurām balstās decentralizētās programmatūras platforma, programmatūras izstrādes process tajā un platformas stiprās un vājās puses. Darba praktiskajā daļā, tiek izveidots decentralizētas kopfinansēšanas sistēmas prototips Ethereum platformā.
Viedo līgumu izstrādes platformu salīdzinājums
2018
Viedie līgumi ir jauna tehnoloģija, kurai ir liels potenciāls nākotnē tik plaši izmantotai. To pirmā izstrādes platforma bija Ethereum, taču laika gaitā tai ir parādījušies spēcīgi konkurenti, kuri nav tikuši sīkāk pētīti. Darbā tiek veikta populārāko viedo līgumu izstrādes platformu Ethereum, NEO un EOS projektējuma filozofijas, darbības principu un īpašību pētīšana un, balstoties uz tā, tiek veidots atšķirību salīdzinājums. Pētījuma rezultātā ir iegūta tabula, kurā redzamas platformu būtiskākās atšķirības. Pētījumā secinātas apskatīto platformu projektējuma filozofijas, darbības principu un īpašību atšķirības un kompromisi, uz kuriem platformām jāiziet, lai sasniegtu savus projektējuma mē…
European Universities: Forthem e la mobilità virtuale
2022
Il contributo introduce dapprima il programma European Universities e i vari progetti finanziati con la partecipazione di università italiane, con particolare attenzione sulla mobilità virtuale. Successivamente la presentazione esamina la Digital Academy, la piattaforma online per la mobilità virtuale, la collaborazione e il networking per studenti e membri del personale accademico ed amministrativo sviluppato nel Progetto Forthem, di cui l’Università di Palermo è Università partner. Verrà illustrato il modello di apprendimento e insegnamento che ne deriva. The paper deals with the European Universities program and the various projects funded with the participation of Italian universities. …
Evaluación de la calidad pedagógica de los MOOC
2014
Los MOOC han irrumpido de forma acelerada en el ámbito de la educación. Las principales universidades estadounidenses primero y, posteriormente, muchas otras –entre ellas, algunas españolas— están desarrollando a través de diversas plataformas en Internet, cursos bajo este formato. Al encontrarnos en una situación inicial de desarrollo de MOOC, son escasos los estudios sobre su evaluación. Por ello, el presente estudio ha realizado 129 evaluaciones a 52 MOOC ofertados por 10 plataformas. Se han analizado sus características pedagógicas a partir del Cuestionario de evaluación de la calidad de cursos virtuales (Arias, 2007). Del mismo modo se aborda la hipótesis de la existencia de diferencia…
Facies stacking and extinctions across the Triassic–Jurassic boundary in a peritidal succession from western Sicily
2017
An uppermost Triassic–lowermost Jurassic carbonate platform succession, which is 430 m thick, in northwestern Sicily is described with the aim to provide new data on the sedimentological and biological variations across the Triassic–Jurassic boundary in peritidal environments. The studied succession belonged to the rimmed carbonate shelf that developed during the upper Triassic along the margins of the Ionian Tethys. The peritidal sediments consist of metre-scale shallowing-upward cycles formed by subtidal, intertidal and supratidal facies. Three main informal units are differentiated along the section on the basis of the variations recorded by the subtidal facies. The lower and middle unit…
Mercury contents and isotope ratios from diverse depositional environments across the Triassic–Jurassic Boundary: Towards a more robust mercury proxy…
2021
Abstract Mercury is gaining prominence as a proxy for large igneous province (LIP) volcanism in the sedimentary record. Despite temporal overlap between some mass extinctions and LIPs, the precise timing of magmatism relative to major ecological and environmental change is difficult to untangle, especially in marine settings. Changes in the relative contents of Hg in sedimentary rocks through time, or ‘Hg anomalies’, can help resolve the timing of LIP activity and marine extinctions. However, major questions remain unanswered about the fidelity of Hg as a proxy for LIP magmatism. In particular, depositional (e.g., redox) and post-depositional (e.g., oxidative weathering) processes can affec…
Korelācija starp acu dominanci un ķermeņa stājas līdzsvaru
2017
Bakalaura darbs ir uzrakstīts angļu valodā uz 34 lapaspusēm, tas satur 21 zīmējumus, 21 atsauces uz literatūras avotiem. Darba mērķis ir novērtēt sensorialās un motorās dominances ietekmi uz ķermeņa līdzsvaru statiskos apstākļos. Salīdzinot abu atvērto acu testus ar aiztaisīto acu testiem var redzēt stipru binokulārās redzes ietekmi uz ķermeņa līdzsvaru. Turpretī nav novērota statistiska atšķirība starp atvērtas dominantās acs ietekmi un atvērtas nedominantās acs ietekmi. Visiem pētījumu dalībniekiem atvērta dominantā acs neuzrādīja lielāku ietekmi uz līdzsvara balansu kā nedominantā acs. Turpretī binokulārās redzes apstākļos līdzsvars uzlabojās, ko var redzēt pēc ticamības elipses lieluma …
A gap analysis of Internet-of-Things platforms
2016
We are experiencing an abundance of Internet-of-Things (IoT) middleware solutions that provide connectivity for sensors and actuators to the Internet. To gain a widespread adoption, these middleware solutions, referred to as platforms, have to meet the expectations of different players in the IoT ecosystem, including device providers, application developers, and end-users, among others. In this article, we evaluate a representative sample of these platforms, both proprietary and open-source, on the basis of their ability to meet the expectations of different IoT users. The evaluation is thus more focused on how ready and usable these platforms are for IoT ecosystem players, rather than on t…