Search results for "alum"
showing 10 items of 1303 documents
Vor-und Nachteile der Digitalisierung bei der Arbeit von Sprachexpertinnen und –experten
2020
While the future of work is discussed from many perspectives, discussions on how an individual's own work tasks are changing are relatively rare (Dufva et al. 2017). This article builds on our alumni study (Selkälä, Tahkokorpi & Virtaluoto 2018), in which we discovered that despite the perceived changes in working life - often called the disruption of work - the foreign language alumni of the Oulu University have found permanent positions in the traditional professions of language graduates with relative ease. For them, the disruption of work has not affected employability or the terms of employment. To investigate how working life has changed for people in these professions, we gathered gr…
ChemInform Abstract: Reaction of 2,2′-Bis(N-methylindolyl) with Dimethyl Acetylenedicarboxylate and Thermally and Photochemically Induced Cyclization…
2010
2,2′-Bis(N-methylindolyl) 1 reacts with dimethyl acetylenedicarboxylate to furnish the 3-dimethyl maleoyl-substituted 2,2′-bisindolyl 2. Compound 2 cyclizes under aluminum trichloride catalysis according to a polar process to give a cyclopenta[2,1-b:3,4-b′]diindole derivative 4. Reaction of compound 4 with benzyl-amine yields the spiro derivative 5. Photochemically-induced 1,6-electrocyclization of compound 2 gives rise to the indolo[2,3-a]carbazole 6 directly, which is readily transformed to the pyrrolo-annelated carbazole 7 by treatment with benzylamine.
Reaction of 2,2′-bis(N-methylindolyl) with dimethyl acetylenedicarboxylate and thermally- and photochemically-induced cyclizations of the product
1995
2,2′-Bis(N-methylindolyl) 1 reacts with dimethyl acetylenedicarboxylate to furnish the 3-dimethyl maleoyl-substituted 2,2′-bisindolyl 2. Compound 2 cyclizes under aluminum trichloride catalysis according to a polar process to give a cyclopenta[2,1-b:3,4-b′]diindole derivative 4. Reaction of compound 4 with benzyl-amine yields the spiro derivative 5. Photochemically-induced 1,6-electrocyclization of compound 2 gives rise to the indolo[2,3-a]carbazole 6 directly, which is readily transformed to the pyrrolo-annelated carbazole 7 by treatment with benzylamine.
Arrays of Rotating Permanent Magnet Dipoles for Stirring and Pumping of Liquid Metals
2015
AbstractMultiple configurations of synchronously rotating permanent magnet cylinders magnetized across the axes are proposed for liquid metal stirring for homogenization as well as for pumping. Universal analytical model is used for an initial parameter analysis. Then experimental setups were built to perform physical modelling of the industrial applications, e.g. large-scale metallurgical furnaces. Velocity distribution in the liquid metal was measured using different methods: the Ultrasound Doppler anemometry and the potential difference probes. The study shows that the cylindrical permanent magnet setups can achieve up to 10 times higher energy efficiency compared to AC inductors and hav…
Comparison of the effects of compost and vermicompost soil amendments in organic production of four herb species
2020
The aim of this study was to compare the effects of using compost and vermicompost as soil amendments in organic herb production, using four herb species (Dracocephalum moldavica L., Melissa offici...
Dracocephalum ruyschiana L. (Numerne, 1888)
1888
Nordischer Drachenkopf finden in lichte Kieferwaldhouge Nemerno. /// Ruiša pūķgalve, atradne: gaiša priežu meža nogāne Numernē. /// Northern Dragon-head, deposit: light pine forest slope in Numerne. [Attēls no LU Muzeja kolekcijas Herbarium Balticum (RIG I); (BOT2791_12)]
Dracocephalum ruyschiana L. (Numerne)
1936
Ruiša pūķgalve; Atradne: Latgalē, Numernē, austrumos no Puriņu mežsarga mājām. /// Northern Dragon-head, deposit: In Latgale, Numerne, east of the Purin forest rangers home. [Attēls no LU Muzeja kolekcijas Herbarium Latvicum (RIG II); (BOT1029_13)]
Dracocephalum ruyschiana L. (Suntažu pagasts)
1938
Ruiša pūķgalve, atradne: Rīgas apriņķa Suntažu pagasta Lielo Kangaru klajās dienvidu nokares piekājē, 43. km no Rīgas. /// Northern Dragon-head, deposit: Riga District Suntažu parish on the southern slope of Lielie Kangari, 43 km from Riga. [Attēls no LU Muzeja kolekcijas Herbarium Latvicum (RIG II), (BOT1029_26) ]
Dracocephalum ruyschiana L. (Ogres Kangari pie Ikšķiles)
1923
Nordischer Drachenkopf finden in sonnigers Abhang des Grandhügels am Ogre - Kanger bei Üxküll. /// Ruiša pūķgalve, atradne: liela kalna saulaina nogāze Ogres Kangaros pie Ikšķiles. /// Northern Dragon-head, deposit: sunny slope of the grand hill on the Ogre - Kanger near Ikskil. [Attēls no LU Muzeja kolekcijas Herbarium Balticum (RIG I); (BOT 2791_7)]
Dracocephalum ruyschiana L. (Grants-kalns pie Ogres Kangariem, Rīgas apriņķis)
1895
Nordischer Drachenkopf finden in Livland, Kreis Riga, Hügel, genannt "Grant-kalns" am Oger Kanger zwischen Üxkull und Oger. /// Ruiša pūķgalve, atradne: Livlande, Rīgas apriņķis, tā sautā "Grants-kalns" pie Ogres Kangariem starp Ikšķili un Ogri. /// Northern Dragon-head, deposit: Riga district, hill, called "Grant-kalns" on the Ogres Kangar between Ikskil and Ogre. [Attēls no LU Muzeja kolekcijas Herbarium Balticum (RIG I); (BOT2791_11)]