Search results for "DAT"
showing 10 items of 28078 documents
Relaxation of a weakly discontinuous functional depending on one control function
2008
The paper considers an optimal control problem of the typewhere the set M of admissible controls consists of all measurable vector‐functions h, which can take only two values h1 or h2. It is shown that the relaxation of this problem can be explicitly computed by rank‐one laminates.
The Effect of Electrolytic Solution Composition on the Structure, Corrosion, and Wear Resistance of PEO Coatings on AZ31 Magnesium Alloy
2020
Plasma electrolytic oxidation coatings were prepared in aluminate, phosphate, and silicate-based electrolytic solutions using a soft-sparking regime in a multi-frequency stepped process to compare the structure, corrosion, and wear characteristics of the obtained coatings on AZ31 magnesium alloy. The XRD results indicated that all coatings consist of MgO and MgF2, while specific products such as Mg2SiO4, MgSiO3, Mg2P2O7, and MgAl2O4 were also present in specimens based on the selected solution. Surface morphology of the obtained coatings was strongly affected by the electrolyte composition. Aluminate-containing coating showed volcano-like, nodular particles and craters distributed over the …
Synergistic effect of W incorporation and pulsed current mode on wear and tribocorrosion resistance of coatings grown by plasma electrolytic oxidatio…
2019
Ceramic coatings were grown by plasma electrolytic oxidation on 7075 Al alloy using unipolar and bipolar pulsed current waveforms with 20 and 40% cathodic duty cycles, from a silicate-based bath without and with the addition of Na2WO4. Pancake-like morphology was dominant on the coatings grown by unipolar waveform, while the bipolar waveforms promoted volcano-like morphology, increased the roughness of the coating surface and the formation of more compact layers. The coatings produced using the bipolar waveforms provided higher resistances toward both tribocorrosion and dry sliding conditions, while further improvement was achieved by the presence of tungsten. The coatings produced in tungs…
Structural Equation Modeling in Research on Brand Capital in Higher Education
2016
This research is done in order to examine the role of the brand capital in higher education. For this purpose, we analyze the main contributions of the literature related to the study of the brand capital and its application in the educational sector, identifying which variables determine the brand capital in the higher education sector. Once we establish the susceptible brand capital in the higher education sector, an empirical research is done by using a questionnaire developed in Spanish language with a Likert scale of grade 5 in which 1 point means "strongly disagree" and 5 mean "strongly agree", being based on the measurement scales…
Music adviser : emotion-driven music recommendation ecosystem
2017
In respect of the big amounts of music available in the web, people met the problem of choice. From another side, practically unlimited resources can bring us new opportunities in the music context. Efficient data management engines which are smart and self managed are in demand nowadays in the music industry to handle music sources amounts of which are coming towards to infinity continuously. This study demonstrates feasibility of the emotional based personalization of music recommendation system. There is still gap between human and artificial intelligence, robotics do not have intuition and emotions which represent critical point of recommendations. Taking into account significant influe…
Paplašināmība web lietotnēs
2021
Kvalifikācijas darbā “Paplašināmībā web-lietotnēs” tika izstrādāta plaginu sistēma, pielāgojama JavaScript valodā rakstītām aplikācijām. Tā bija izstrādāta kā ScandiPWA tehnoloģijas daļa. Šī sistēma ir diezgan unikāls risinājums klienta puses izstrādes pasaulē un tai nav spēcīgo sacensību, īpaši bibliotēkas React lietotāju kopienā. Šī sistēma iedos iespēju veidot ekosistēmas, kuru bāzē ir plagini, atļaujot veidot produktus un monetizēt tos modulāri. Produkts ir pilnīgi izstrādāts JavaScript valodā, tajā sastāvdaļās ir izmantotas sekojošās tehnoloģijas: Webpack, Babel.
Le categorie per la valutazione della produzione scritta degli studenti
2008
Il contributo presenta una proposta di analisi delle interazioni nei webforum per la costruzione della conoscenza condivisa. La costruzione di una comunicazione valorizzante l’apporto costruttivo di singoli studenti e di un’interazione congruente in rete può essere indagata secondo un aspetto contenutistico e uno di tipo relazionale. In riferimento a questi due aspetti, la produzione scritta di studenti universitari nei forum di discussione è stata analizzata con l’utilizzo di una lista di categorie predefinita (griglia di valutazione). La lista di categorie elaborata prospetta un quadro di possibili comportamenti linguistico-comunicativi messi in atto dagli allievi durante l’attività di in…
Analisi qualitativa delle interazioni nei forum
2008
Nella riflessione contenuta nel contributo vengono presi in esame alcuni messaggi significativi, ricavati dalle interazioni nei webforum di studenti universitari ed analizzati secondo tre funzioni comunicative ipotizzate: informare, collaborare, valutare.
Mājas lapa "Šuvējas darbnīca"
2015
Mājas lapa "Šuvējas darbnīca" ir pēc pasūtījuma veidota mājas lapa, kas paredzēta šuvējas pakalpojumu popularizēšanai un biznesa paplašināšanai. Mājas lapas apmeklētājiem tiek piedāvāta iespēja ne tikai sazināties ar pakalpojuma sniedzēju, lai veiktu pasūtījumu, bet arī pasūtīt jau gatavus apģērbu dizainus, kuri tiks izgatavoti atbilstoši katra klienta personīgajām vajadzībām. Mājas lapa ir pieejama jebkuram apmeklētājam, kam ir pamata zināšanas darbā ar internetu un datoru vai jebkuru citu iekārtu, kurai ir iespējams izveidot interneta savienojumu.
Webquest: la formazione
2008
Il webquest è una modalità di ricerca che consente agli studenti di ricavare informazioni da internet, con un percorso guidato da domande prestabilite dagli insegnanti e partendo da siti già validati dai docenti stessi.