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    Wyświetlanie 1-3 z 3
    Tytuł:
    Ocena ciepłoodporności przewodów emaliowanych metodami analizy termicznej
    Assesment of thermal endurance of enameled wires using thermal analysis methods
    Autorzy:
    Górecki, L.
    Górnicka, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/1372633.pdf
    Data publikacji:
    2011
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Napędów i Maszyn Elektrycznych Komel
    Tematy:
    przewód emaliowany
    materiały elektroizolacyjne
    ciepłoodporność
    izolacja
    emalia
    analiza termiczna
    Opis:
    The long-term investigations are required to determine the thermal endurance of enamelled wires on the basis of Temperature Index (TI). The fast assessment of thermal properties is often necessary, especially when the new materials are developed. In this case thermal analysis methods can be very useful. The thermogravimetric (TGA) and differential scanning calorimetry (DSC) analysis of the various winding wire enamels are presented. It was found that the sample conditioning by exposure to temperature of the declared TI during 50 hours enable the proper classification in the respect to the thermal endurance. Additionally the TGA/DSC investigations of the poliamide-imide enamel after various periods of ageing in 280 °C and 290 °C were performed and lifetimes of the enamel in these temperatures were determined. The exothermic peak temperatures on the DSC curves were determined. It has been stated that the peaks shift in the lower temperatures direction after exceeding the lifetime. The degradation temperatures were determined from the loss weight (TG) curves. It was proved that the degradation temperature stabilizes after attaining the enamel lifetime. Furthermore, while unaged enamel shows no residue mass (enamel combusts in air atmosphere), the residue mass of aged enamel gradually increases, even to 27%, due to penetration of the cupper ions from wire during ageing.
    Źródło:
    Maszyny Elektryczne: zeszyty problemowe; 2011, 3, 91; 75-79
    0239-3646
    2084-5618
    Pojawia się w:
    Maszyny Elektryczne: zeszyty problemowe
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Kolor w weneckim rzemiośle artystycznym XVI wieku
    Colour in Venetian Artistic Handicraft in the 16th Century
    Autorzy:
    Białonowska, Magdalena
    Powiązania:
    https://bibliotekanauki.pl/articles/2106512.pdf
    Data publikacji:
    2021-12-10
    Wydawca:
    Uniwersytet Kardynała Stefana Wyszyńskiego w Warszawie
    Tematy:
    rzemiosło artystyczne
    Wenecja
    szkło
    emalia
    majolika
    Decorative Arts
    Venice
    glass
    email
    majolica
    Opis:
    Weneckie wyroby rzemiosła artystycznego z XVI wieku ze względu na drogocenne materiały, kunszt technologiczny, a także wysoki poziom artystyczny były towarem eksportowym na całą Europę. Odnoście do kilku grup weneckiego rzemiosła artystycznego (szkła, majoliki, miedzianych wyrobów zdobionych emalią czy tkanin jedwabnych) można rozpatrywać zagadnienie walorów kolorystycznych, które wpływały na odbiór tych luksusowych dóbr. Weneccy sprzedawcy barwników – vendicolori – posiadali w swoich sklepach składniki, których używali rzemieślnicy tacy jak: malarze ceramicy, malarze na szkle oraz farbiarze tkanin. W wyrobach weneckiego rzemiosła artystycznego tego okresu dominowały takie barwy jak: czerwień i jej różne odcienie, kobalt oraz żółć.
    16th-century Venetian decorative arts from, due to their precious materials, technological craftsmanship, and high artistic level, were an export commodity all over Europe. With regard to several groups of Venetian artistic craftsmanship (glass, majolica, enameled copper or silk fabrics), we can consider the issue of color values that influenced the perception of these luxurious goods. Venetian dye sellers—vendicolori—had ingredients in their stores that were used by craftsmen such as ceramic painters, glass painters and fabric dyers. Red and its various shades, cobalt, and yellow were the colors that dominated the products of Venetian artistic craftsmanship of that period.
    Źródło:
    Saeculum Christianum. Pismo Historyczne; 2021, Wydanie specjalne, 28; 18-31
    1232-1575
    Pojawia się w:
    Saeculum Christianum. Pismo Historyczne
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Późnośredniowieczne skarby monet z dolnego Nadodrza i dolnego Połabia z zawartością biżuterii i ozdób
    Late Medieval Hoards of Coins from the Lower Odra Region and Lower Elbeland, Containing Jewellery and Ornaments
    Autorzy:
    Szczurek, Tadeusz
    Powiązania:
    https://bibliotekanauki.pl/articles/532537.pdf
    Data publikacji:
    2014
    Wydawca:
    Muzeum Pierwszych Piastów na Lednicy
    Tematy:
    aplikacja-tarczka
    biżuteria
    bransoleta
    brosza
    depozyt
    emalia
    fibula
    guziki
    guzy
    Hanza wendyjska
    kamienie półszlachetne
    klamra
    kolczyki
    krzyżyki
    zawieszki
    masa szklana, naszyjnik, niello, obrączka, okucie, ozdoby, perła, pierścień,
    pozłacanie, skarb, sprzączka, sygnet, szpila, tezauryzacja, trybowanie, zapinka
    fitting-shield
    jewellery
    bracelet
    brooch
    deposit
    enamel
    buttons
    knobs
    Wendic Hansa
    semi-precious stones
    buckle
    earrings
    crosses-pendants
    glass mass
    necklace
    niello
    annuli ring
    fitting
    ornaments
    pearl
    ring
    gilding
    hoard
    signet
    hair-pin
    hoarding
    embossing
    clasp
    Opis:
    In this paper the author offers an overview of hoards containing ornamental items, that is, jewellery, dress ornaments as well as ornaments used to decorate other artefacts. Je mapping of finds, starting with those from the second half of the 12th c., does not display any concentration in the discussed territory. However, there is quite a large concentration of deposits with ornaments in the southern borders, or actually beyond them—in Anhalt, Saxony-Wittenberg and in Thuringia (Fig. 1). When the finds are arranged chronologically, it turns out that deposits which were hidden in the period from c. 1360 to c. 1500 are the most numerous. Earlier hoards, however, are much richer in decorative artefacts. In later deposits such artefacts are either single specimens or their number is limited to but a few finds. There are occasional hoards dated back to the Early Middle Ages (to c. 1070) containing ornaments only or ornaments and non-monetary silver (in the form of clumps and bars). However, from the second half of the 12KP c. onwards there are no finds which contain ornamental items only. Although there are ornaments in deposits with bars (Gusskönige), they are accompanied by coins. An overwhelming majority of the ornamental items was made from silver. From the 13th c. onwards, gilding appears on the silver artefacts. Je technique of gilding is commonly used in silver jewellery artefacts from the 14th and 15th c. A silver ring from the hoard from Bardowick is ornamented in the niello technique. Gold artefacts occur very rarely, and it seems that they appear as single finds only. Bronze artefacts are truly unique. Specimens from the 14th and 15th c. are ornamented with semi-precious stones, a glass mass and enamel, while pearls are found sporadically. Amber does not occur in the discussed territory; on the other hand, it is known from small artefacts in other parts of Europe (e.g., from the Austrian hoard in Fuchsenhof, c. 1275–1278). Je assortment of ornamental artefacts for decoration of the body (jewellery) and of dress is quite similar to that from the present time. It encompasses rings (often with eyelets), annuli and signet rings, brooches used as clasps, buckles and the fittings of belts, knobs used as buttons, but also as dress ornaments, fittings (thin metal sheets with openings, used to ornament dresses, purses and caskets) in the shape of round and heraldic shields, or heraldic eagles and lions. In some hoards there are large numbers of buckles (some of these are similar to brooches, somewhat resembling fibulae). Crosses-pendants, earrings and hair pins are not common. Items of cutlery are rather sporadically found (silver spoons and silver fittings for knife handles). The largest hoards are known from the territory of the Wendic Hansa and they were discovered in urban areas. "ere is no doubt that these were gathered by members of the patriciate. On the other hand, rich hoards with gold artefacts are known from the Rhineland, but also from Erfurt in Thuringia and from Środa Śląska.
    Źródło:
    Studia Lednickie; 2014, 13; 49-76
    0860-7893
    2353-7906
    Pojawia się w:
    Studia Lednickie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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