Search results for "element"
showing 10 items of 13601 documents
Spēliskošanas elementi IT mācību sistēmā
2018
Spēles ir ļoti aizraujošs laika pavadīšanas līdzeklis, tādēļ ir radušies virzieni, kuri mēģina spēlēs izmantotos procesus un elementus pārnest arī uz citām, ne ar spēlēm saistītām, nozarēm. Galvenais darba mērķis ir izpētīt, kas ir spēliskošana, no kā tā sastāv un kā tā var tikt izmantota mācību sistēmas. Tas tiek darīts, lai varētu tikt izplānoti iespējamie spēliskošanas elementi IT mācību platformai ReSeLa, kas ir paredzēta praktiskai datortīklu un datorsistēmu apguvei. Darbs sastāv no spēliskošanai veltīto resursu pētīšanas un analīzes. Tiek apskatītas vairākas ar izglītību saistītas mācību sistēmas, kas veiksmīgi ir izmanto spēliskošanu savā sistēmā. Kā arī tiek apskatīta mācību platfor…
Ilustratīvie elementi spēļu kāršu dizainā
2021
Diplomdarba tēma ir “Ilustratīvie elementi spēļu kāršu dizainā”. Balstoties uz teorētiskajā daļā uzzināto un empīriskajā daļā izpētīto, darba mērķis ir izveidot jaunu spēļu kāršu dizainu galda spēlei “Saboteur” izmantojot ilustratīvos elementus, kas ir raksturīgi tradicionālajām spēļu kārtīm. Teorētiskajā daļā ir aprakstīta tradicionālo spēļu kāršu vēsture, kā arī ilustratīvie elementi, kas ir atrodami spēļu kāršu dizainā, to paskaidrojums un nozīme. Tiek izvirzīti vizuālā dizaina principi uz kuriem balstoties būtu iespējams izveidot funkcionālu spēļu kāršu dizainu. Empīriskajā daļā tika veikta 10 dažādu galda spēļu kāršu komplektu vizuālā dizaina analīze, lai izprastu teorētiskajā daļā min…
Statiska vizuāla materiāla narativitāte un tā radītā mentālā struktūra
2015
Maģistra darba mērķis ir pētīt statiska vizuāla materiāla radīto mentālo reprezentāciju un pārbaudīt, vai tā atbilst naratīva nosacījumiem. Darba ietvaros tēma ir pētīta no kognitīvās naratoloģijas perspektīvas. Darba teorētisko bāzi veido teorijas par mentālo struktūru veidošanos un naratoloģijas atzinumi par naratīva uzbūvi. Darba empīriskā daļa sastāv no trim savstarpēji saistītiem pētījumiem, kuros dati ir vākti ar aptaujas, produkcijas uzdevuma, pieņemamības vērtēšanas un protokolu analīzes palīdzību. Iegūtie dati ir analizēti ar aprakstošās statistikas, kvantitatīvās kontentanalīzes un korpuslingvistikas palīdzību. Pētījumu gaitā ir apstiprināta hipotēze, ka statisks vizuālais materiā…
Flexural Behavior of Steel Fibrous Reinforced Concrete Deep Beams
2012
Experimental research was carried out regarding the flexural behavior of deep beams cast with plain and fibrous concrete with hooked steel fibers, and subjected to monotonic vertical loads. Four deep fiber-reinforced concrete beams were cast. Two of them were made of plain concrete with main and web steel reinforcements (RC), and two were made of hooked steel fiber-reinforced concrete (SFRC) with main steel reinforcements. The experimental results show the brittle behavior of reinforced deep RC members characterized by crushing of concrete struts and fracture of web steel bars. SFRC deep beams exhibit higher strength and, above all, ductility with respect to RC members due to the bridging a…
Spin Crossover and Long-Lived Excited States in a Reduced Molecular Ruby.
2020
Abstract The chromium(III) complex [CrIII(ddpd)2]3+ (molecular ruby; ddpd=N,N′‐dimethyl‐N,N′‐dipyridine‐2‐yl‐pyridine‐2,6‐diamine) is reduced to the genuine chromium(II) complex [CrII(ddpd)2]2+ with d4 electron configuration. This reduced molecular ruby represents one of the very few chromium(II) complexes showing spin crossover (SCO). The reversible SCO is gradual with T 1/2 around room temperature. The low‐spin and high‐spin chromium(II) isomers exhibit distinct spectroscopic and structural properties (UV/Vis/NIR, IR, EPR spectroscopies, single‐crystal XRD). Excitation of [CrII(ddpd)2]2+ with UV light at 20 and 290 K generates electronically excited states with microsecond lifetimes. This…
Efficient regio- and stereoselective access to novel fluorinated ?-aminocyclohexanecarboxylates
2013
A regio- and stereoselective method has been developed for the synthesis of novel fluorinated 2-aminocyclohexanecarboxylic acid derivatives with the fluorine attached to position 4 of the ring. The synthesis starts from either cis- or trans-β-aminocyclohex-4-enecarboxylic acids and involves regio- and stereoselective transformation of the ring C–C double bond through iodooxazine formation and hydroxylation, followed by hydroxy–fluorine or oxo–fluorine exchange.
Influence of the Resin Layer Thickness at the Interface of Hybrid Metal-composite Co-cured Joints
2011
As discussed in literature, the accurate analysis of the modern co-cured joints between composite materials or between a metal and a composite material (hybrid joints) is complicated by the influence of the interface resin layer on the interface singular stress field. In such joints, in fact, there is not a proper adhesive layer and the thickness of the resin layer, that plays the role of the adhesive, is not constant due to the presence of the reinforcing fibers in the composite adherent. For this reason several authors assume that a generic co-cured joint can not be studied as a simple bi-material joint, without considering the particular characteristics of the actual resin layer. This pr…
Experimental analysis, numerical and analytical modeling of shear strength mechanisms in Hybrid Steel Trussed Concrete Beams
2014
Characterization of rhenium oxide films and their application to liquid crystal cells
2009
Rhenium trioxide exhibits high electronic conductivity, while its open cubic crystal structure allows an appreciable hydrogen intercalation, generating disordered solid phases, with protonic conductivity. Rhenium oxide thin films have been obtained by thermal evaporation of ReO3 powders on different substrates, maintained at different temperatures, and also by reactive magnetron sputtering of a Re metallic target. A comparative investigation has been carried out on these films, by using micro-Raman spectroscopy and x-ray diffraction. Two basic types of solid phases appear to grow in the films: a red metallic HxReO3 compound, with distorted perovskite structures, like in the bulk material, a…
Procedure for Safety Assessment and BIM Modelling of an Historical Complex Structure through a Macroelement Approach: The Building “Molino-Pastificio…
2022
The structural assessment of existing historical structures is a complex task due to the inner main difficulty in making up reliable models for structural analysis, able to include mechanical and geometrical nonlinearities, existing damage, complex configurations and arrangements of materials. This task becomes more difficult in mixed RC-masonry structures, which structural modelling can be particularly tough due to the different connections and interactions between structural members and materials. This paper presents the case study of a multi-storey mixed Reinforced Concrete (RC)- masonry historical structure, namely the former mill “Molino-Pastificio Soresi” building, located in Partinic…