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    Wyświetlanie 1-2 z 2
    Tytuł:
    Austempering in Zamak Bath: Influence of Austempering Time and Austenitizing Temperature on Ductile Cast Iron Properties
    Autorzy:
    Pereira, L.
    Bellé, M. R.
    Seibel Júnior, L. F.
    Pasini, W. M.
    do Amaral, R. F.
    Karlinski de Barcellos, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/352699.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    austempered ductile iron
    metallic bath
    Zamak
    Opis:
    The combination of the austempered ductile iron mechanical properties strongly depend on the parameters used on the austempering cycle. On this study, the influence of austempering time and austenitizing temperature on the properties of a ductile iron were evaluated. A metallic bath of Zamak at 380°C was used as an austempering mean. A set of ductile iron blocks were austenitized at 900°C for 90 minutes and submitted to different austempering times in order to determine the best combination of microstructural and mechanical properties. After the definition of the time of austempering, the reduction of the austenitizing temperature was evaluated. The best combination of properties was obtained with austenitizing at 860°C and austempering during 60 minutes.
    Źródło:
    Archives of Metallurgy and Materials; 2019, 64, 1; 371-376
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A novel orchiectomy surgical procedure in donkeys (Equus asinus africanus) with parascrotal access
    Autorzy:
    Barrêto JR, R.A.
    Rodrigues, L.A.
    Albuquerque, J.P.
    de Sousa, F.J.A.
    Firmino, P.R.
    Sousa, R.S.
    Pedrosa, V.J.
    do Amaral, T.R.
    Minervino, A.H.H.
    Powiązania:
    https://bibliotekanauki.pl/articles/16539181.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czasopisma i Monografie PAN
    Tematy:
    inflammation
    donkeys
    peritoneal fluid
    surgical approach
    castration
    Opis:
    Donkeys are a public health concern in the Northeast region of Brazil, with thousands of stray animals. Orchiectomy is an important population control measure; however, the long postoperative period with daily treatment of open wounds in the scrotum makes it difficult to perform a large number of castrations in sheltering centers. We evaluate a novel surgical procedure for orchiectomy in donkeys using parascrotal access. Twelve donkeys were used, divided into two groups: I - submitted to orchiectomy through parascrotal surgical access (novel procedure), and II - submitted to orchiectomy through scrotal access (conventional). Postoperative evaluations consisted of a macroscopic evaluation of the surgical wound (bleeding and intensity of edema), hematological parameters, and peritoneal fluid, which occurred in both groups at the moments (M): M0 - before the surgical procedure. The others moments occurred after surgery: M12 (twelve hours); M24 (twenty-four hours); M48 (forty-eight hours); M72 (seventy-two hours); M8D (eight days); and M16D (sixteen days). The surgical techniques did not generate an important systemic inflammatory response to the point detected by the leukogram, fibrinogen dosage, and peritoneal fluid. The parascrotal technique required long surgery but promoted less bleeding, less edema, and faster healing. The techniques used did not promote sufficient systemic inflammation to alter the number of leukocytes and the fibrinogen concentration; however, evaluation of the peritoneal fluid proved to be important for evaluating inflammatory processes involving the scrotum and inguinal canal. We describe a novel surgical procedure for orchiectomy in Donkeys using a parascrotal access that promoted less risk of bleeding, shorter period of edema, and healing time, but required longer surgery time.
    Źródło:
    Polish Journal of Veterinary Sciences; 2022, 25, 2; 295-302
    1505-1773
    Pojawia się w:
    Polish Journal of Veterinary Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-2 z 2

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