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    Wyświetlanie 1-4 z 4
    Tytuł:
    Theoretical Elements in Fourier Analysis of q-Gaussian Functions
    Autorzy:
    Rodrigues, P S. S.
    Giraldi, G. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/375832.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    q-Gaussian kernel
    signal processing
    Opis:
    There is a consensus in signal processing that the Gaussian kernel and its partial derivatives enable the development of robust algorithms for feature detection. Fourier analysis and convolution theory have a central role in such development. In this paper, we collect theoretical elements to follow this avenue but using the q-Gaussian kernel that is a nonextensive generalization of the Gaussian one. Firstly, we review the one-dimensional q-Gaussian and its Fourier transform. Then, we consider the two-dimensional q-Gaussian and we highlight the issues behind its analytical Fourier transform computation. In the computational experiments, we analyze the q-Gaussian kernel in the space and Fourier domains using the concepts of space window, cut-o frequency, and the Heisenberg inequality.
    Źródło:
    Theoretical and Applied Informatics; 2015, 27, 2; 16-44
    1896-5334
    Pojawia się w:
    Theoretical and Applied Informatics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Recent development in ECR sources
    Autorzy:
    Bieth, C.
    Kantas, S.
    Sortais, P.
    Kanjilal, D.
    Rodrigues, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/148676.pdf
    Data publikacji:
    2003
    Wydawca:
    Instytut Chemii i Techniki Jądrowej
    Tematy:
    ion source
    ECR source
    superconducting coils
    high temperature superconducting wires
    high charge state ion source
    ion implantation
    Opis:
    Recent developments and improvements on the ECR ion source family at PANTECHNIK S.A. are presented. A lot of work has been done in the Ion Implantation Technology with the MICROGAN IndustryŽ source: more than 3 mA have been produced on B1+, P1+ and few hundred žAe on charge state 3+, 4+. Three other developments are described in this paper: a) the construction of the first source using high temperature superconducting coils (30 K) PKSUSŽ - Space Cryomagnetics (UK), in collaboration with NSC (New Delhi); b) the construction of the PHOENIX ECR source (used in the “1+/n+” process for radioactive beam) for different laboratories; c) and the first results on PK 2.45 (a cheap source working at 2.45 GHz) able to produce high current of monocharged beam. We will also present some special products for beam acceleration and diagnosis.
    Źródło:
    Nukleonika; 2003, 48,suppl.2; 93-98
    0029-5922
    1508-5791
    Pojawia się w:
    Nukleonika
    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 1-4 z 4

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