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    Wyświetlanie 1-4 z 4
    Tytuł:
    Effects of pretreated ozone and modified atmosphere packaging on the quality of fresh-cut green asparagus
    Autorzy:
    An, J.
    Zhang, M.
    Lu, Q.
    Powiązania:
    https://bibliotekanauki.pl/articles/25240.pdf
    Data publikacji:
    2006
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    fresh-cut green asparagus
    Asparagus officinalis
    ozone
    modified atmosphere packaging
    pretreatment
    lignifying
    packaging
    quality
    cell wall composition
    asparagus
    Źródło:
    International Agrophysics; 2006, 20, 2
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis and measure of novel stereo-garage driven by linear induction motor
    Autorzy:
    Lu, Q.
    Ye, Y.
    Shen, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/140630.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    FEM
    linear induction motors
    low frequency
    stereo-garage
    Opis:
    The car access time is a key parameter, especially in a huge stereo-garage, where this one should be decreased as much as possible. This paper proposes a novel stereo-garage. Adopting the linear induction motors (LIMs), the system has a simple structure and rapid response capability. In the stereo-garage, several LIMs are installed below the crossbeam on a lifting platform, and several LIMs are fixed on the top of a moving frame. During the operation of LIMs, the moving frame moves forward and backward to reach the required parking place, whereas the crossbeam moves horizontally in order to take or store the vehicle rapidly. All these LIMs are the same and should be designed at a low frequency. The influences of key structure parameters and dynamic performances are investigated, based on FEM. The predicted results are validated by a prototype. Finally, the designed LIMs are successfully applied in two 8-layer stereo-garages.
    Źródło:
    Archives of Electrical Engineering; 2015, 64, 4; 669-678
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Truncated two-stage compound parabolic concentrator for collecting human diffuse transmission light
    Autorzy:
    Gao, J.
    Han, G.
    Lu, Q.
    Ding, H.
    Xu, J.
    Sun, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/174488.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    optical design
    compound parabolic concentrator
    CPC
    non-imaging optics
    near infrared spectroscopy
    medicine optical instrument
    Opis:
    We propose an optical system employing a compound parabolic concentrator for near infrared spectroscope in noninvasive blood components testing. A truncated two-stage compound parabolic concentrator system is designed, which consists of a normal first-stage compound parabolic concentrator and a truncated second-stage compound parabolic concentrator. Using advanced ray tracing technique, the optical efficiencies of truncated two-stage compound parabolic concentrator system, ellipsoidal mirror system and non-optical-focusing mirror system are calculated to be 25.4%, 22.4% and 4.0%, respectively. Furthermore, the total length of truncated two-stage compound parabolic concentrator is only about 68 mm while the ellipsoidal mirror is 110 mm. It indicates that the truncated two-stage compound parabolic concentrator system enhances the ability of concentrating human diffuse transmission light, and it is a benefit to improve signal-to-noise ratio of noninvasive biochemical analysis system efficiently. Due to the advantage of small size, it tends to achieve a miniature instrument.
    Źródło:
    Optica Applicata; 2018, 48, 2; 325-335
    0078-5466
    1899-7015
    Pojawia się w:
    Optica Applicata
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fatigue life prediction of umbilicals considering non-linear stress
    Autorzy:
    Lu, Q.
    Yin, Y.
    Yang, Z.
    Chen, J.
    Yan, J.
    Yue, Q.
    Powiązania:
    https://bibliotekanauki.pl/articles/259519.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    steel tube umbilical
    fatigue life
    contact and friction
    non-linear local stress
    Opis:
    The fatigue problem induced by wave loads and floater movements of dynamic umbilicals in deepwater is studied. The prediction method of the fatigue life is investigated by considering no-linear local stress due to contact and friction between components of the umbilical. A case study of a dynamic umbilical for 1500 meters depth in South China Sea was presented. The results showed that the more accurate result of the fatigue life was calculated by considering non-linear local stress. The fatigue life by considering local stress with the no-slip assumption was conservative. An obviously longer fatigue life was obtained by considering local stress with the full-slip assumption.
    Źródło:
    Polish Maritime Research; 2017, S 2; 154-163
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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