Search results for "kompleksi"
showing 10 items of 201 documents
Tiokruunueetterien metallikompleksit
2012
Tämä LuK-tutkielma käsittelee tiokruunueetterien metallikomplekseja. Tarkemman tarkastelun kohteeksi on valittu pelkkiä rikkidonoreita sisältävien tiokruunueettereiden hopea-, kulta-, kupari-, palladium- ja platinakompleksit, jotka ovat lisäksi homoleptisiä eli eivät sisällä tiokruunueetterien lisäksi muita ligandeja. Tutkielmassa on keskitetty lähinnä kompleksien rakenteisiin ja koordinaatiokemiaan.
Words, clauses, sentences, and T-units in learner language: Precise and objective units of measure?
2020
In research on learner language complexity, accuracy and fluency (CAF), syntactic complexity is often studied with quantitative measures based on words, clauses, sentences, and T-units. The findings have been mixed, but segmenting learner language into these units of measure has seldom been problematised, even if the need for accurate coding is well known. The present study explores words, clauses, sentences, and T-units as production units in written learner language using a corpus of 352 L2 Finnish texts (28,813 words). The results illustrate how written learner language can be hard to fit into the production unit categories, which are essential for the most frequently used quantitative m…
Conjunctions and syntactic complexity: Development of the use of conjunctions in written learner Finnish
2022
Kielitaidon kehittymistä voidaan tutkia mittaamalla oppijankielen sujuvuutta, tarkkuutta ja kompleksisuutta. Kompleksisuus voidaan määritellä oppijankielen monipuolisuudeksi ja kehittyneisyydeksi, mutta syntaktista kompleksisuutta on kansainvälisessä toisen kielen oppimisen tutkimuksessa tyypillisesti mitattu alisteisiin lauserakenteisiin perustuvilla kvantitatiivisilla mittareilla. Tässä artikkelissa syntaktisen kompleksisuuden kehitystä tutkitaan tarkastelemalla rinnastus- ja alistuskonjunktioiden käyttöä suomi toisena kielenä -teksteissä Eurooppalaisen viitekehyksen eri taitotasoilla. Aineistona käytetään Jyväskylän yliopiston Cefling-hankkeen oppijansuomen korpuksen tekstejä. Rinnasteis…
Cleavage of Ge–Ge and Sn–Sn Triple Bonds in Heavy Group 14 Element Alkyne Analogues (EAriPr4)2 (E = Ge, Sn; AriPr4 = C6H3-2,6(C6H3-2,6-iPr2)2) by Rea…
2016
The reactions of heavier group 14 element alkyne analogues (EAriPr4)2 (E = Ge, Sn; AriPr4 = C6H3-2,6-(C6H3-2,6-iPr2)2) with the group 6 transition-metal carbonyls M(CO)6 (M = Cr, Mo, W) under UV irradiation resulted in the cleavage of the E–E triple bond and the formation of the complexes {AriPr4EM(CO)4}2 (1–6), which were characterized by single crystal X-ray diffraction as well as by IR and multinuclear NMR spectroscopy. Single-crystal X-ray structural analyses of 1–6 showed that the complexes have a nearly planar rhomboid M2E2 core with three-coordinate group 14 atoms. The coordination geometry at the group 6 metals is distorted octahedral formed by four carbonyl groups as well as two br…
An experimental and theoretical study of a heptacoordinated tungsten(VI) complex of a noninnocent phenylenediamine bis(phenolate) ligand
2018
Abstract [W(N2O2)(HN2O2)] (H4N2O2 = N,N′-bis(3,5-di-tert-butyl-2-hydroxyphenyl)-1,2-phenylenediamine) with a noninnocent ligand was formed by reaction of the alkoxide precursor [W(eg)3] (eg = the 1,2-ethanediolate dianion) with two equivalents of ligand. The phenol groups on one of the ligands are completely deprotonated and the ligand coordinates in a tetradentate fashion, whereas the other ligand is tridentate with one phenol having an intact OH group. The molecular structure, magnetic measurements, EPR spectroscopy, and density functional theory calculations indicate that the complex is a stable radical with the odd electron situated on the tridentate amidophenoxide ligand. The formal ox…
Vaska batikas un komplekso tekstildarbu apguve 9.klasē mājturības un tehnoloģiju stundās
2015
Diplomdarba „Vaska batikas un komplekso tekstildarbu apguve 9. klasē mājturības un tehnoloģiju stundās” mērķis ir izpētīt un izstrādāt mācību saturu tēmai „Vaska batika un kompleksie tekstildarbi” mājturībā un tehnoloģijās 9. klasē, aprobēt to praksē. Diplomdarba teorētiskajā daļā tiek aplūkoti pedagoģiskie nosacījumi mācību tēmas realizācijai praksē, atklāts tās saturs, kā arī izstrādāts tematiskais plāns un uzdevumu kopa. Praktiskajā daļā tiek analizēta tēmas aprobācija praksē un pētījuma ietvaros apkopoti aptaujas rezultāti par skolnieču attieksmi pret mācību tēmu, kā arī izvērtēts autora sniegums mācību tēmas aprobācijas laikā. Diplomdarbs sastāv no 3 nodaļām, 10 apakšnodaļām, nobeiguma…
Complex Authority Network Interactions in the Common Information Sharing Environment
2019
European authorities collaborate as a community toward a coherent approach of situational understanding and open trust base information sharing. Innovation in multi-stakeholder collaboration networks involve complex collaboration between user community members, providing cross-sector, cross-border and cross-authority interaction and information sharing for collaborative situation awareness, and cooperation to increase safety and security. This study analyses data consisting of elements of use cases, collected from EU funded innovation projects. These were placed in a table based on similarity, difference and relevance to produce a classification. The results of this study indicate that use …
Montmorilonīta-antociānu organokompleksi: fizikāli ķīmiskās īpašības un izmantošanas risinājumi
2020
Bakalaura darba ietvaros tika pētīta antociānu interkalācija montmorilonīta struktūrā un veikta iegūtā organokompleksa fizikāli ķīmisko īpašību izpēte inovatīvu un videi draudzīgu materiālu izstrādē. Pētījuma ietvaros izvēlēts rūpnieciski ražots māla minerāls- montmorilonīts, kas tika modificēts ar antociāniem no melnaugļu aroniju ogu (Aronia melanocarpa L.) vai vīnogu (Vitis vinifera) izspiednēm. Antociānu sorbcija uz māla minerāla tika pētīta atkarībā no sorbenta iesvara, sorbāta koncentrācijas, vides pH un temperatūras. Iegūto kompozītmateriālu īpašības tika raksturotas ar Furjē transformācijas infrasarkanās gaismas spektroskopijas (FTIS) un termogravimetrijas analīzes (TGA) metodēm. Ieg…
Volframin korkean hapetusasteen fenoksokompleksit ja niiden sovellukset
2008
Muscle-tendon mechanics and energetics during walking, running and jumping.
2012
In the human lower limb, muscles and tendon tend to interact in an efficient manner during common movements like walking, running and jumping. This pattern of interaction exploits the ability of muscles to produce forces efficiently at low shortening velocities, whilst tendons act as springs that help to store elastic energy during the contact phase, and return a large proportion of the energy in the pushoff phase. This pattern of muscletendon interaction can be disrupted in novel tasks or as a consequence of ageing or disease, resulting in a decrease in movement efficiency. peerReviewed