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    Wyświetlanie 1-7 z 7
    Tytuł:
    Analyzing the bibliometric progress of sustainable monitoring and analysis of sports training loads
    Autorzy:
    Xing, Y.
    Bibi, B.
    Zhang, Y.M.
    Mushtaq, R.T.
    Powiązania:
    https://bibliotekanauki.pl/articles/28762638.pdf
    Data publikacji:
    2023
    Wydawca:
    Instytut Medycyny Wsi
    Źródło:
    Annals of Agricultural and Environmental Medicine; 2023, 30, 2; 352-363
    1232-1966
    Pojawia się w:
    Annals of Agricultural and Environmental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Efektywna analiza niezawodnościowa systemów z pętlami zależności funkcyjnych
    Efficient Reliability Analysis of Systems with Functional Dependence Loop
    Autorzy:
    Xing, L.
    Dugan, J. B.
    Morrissette, B. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/301684.pdf
    Data publikacji:
    2009
    Wydawca:
    Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
    Tematy:
    zależność funkcyjna
    FDEP
    pętla
    niezawodność
    metoda transformacji
    strategia dziel i rządź
    dynamiczne drzewo uszkodzeń
    functional dependence
    loop
    reliability
    transform method
    divide-conquer
    dynamic fault tree
    Opis:
    Zależność funkcyjna zachodzi wtedy, gdy uszkodzenie jednego komponentu systemu prowadzi do niedostępności bądź nieużywalności innych komponentów w tym samym systemie. Zależności funkcyjne mogą tworzyć pętle. Tradycyjne podejścia do problemu pętli zależności funkcyjnych oparte są na modelach Markova, które są nieefektywne ze względu na dobrze znany problem eksplozji stanów. W niniejszym artykule przedstawiamy nowe, wydajne podejście analityczne do rozwiązywania pętli zależności funkcyjnych w analizie niezawodności systemów. Opierając się na strategii "dziel i rządź", podejście to umożliwia transformację systemu z pętlami zależności funkcyjnych w podsystemy bez zależności i bez pętli, które następnie można oceniać wykorzystując wydajne podejścia kombinatoryczne. Proponowane podejście można stosować do analizy systemów z komponentami o ogólnych rozkładach czasu do uszkodzenia. Podstawy i zalety proponowanego podejścia zilustrowano poprzez szczegółową analizę przykładu.
    Functional dependence occurs when the failure of one component causes other components within the same system to become inaccessible or unusable. And, amongst the functional dependencies there can be the existence of loops. Traditional approaches to handling functional dependence loops are based on Markov models, which are ineffi cient due to the well-known state space explosion problem. In this paper we propose a new and effi cient analytical approach to handling functional dependence loops in the system reliability analysis. Based on the divide-and-conquer strategy, the approach transforms a system with functional dependence loops into subsystems without dependence or loops, which can then be evaluated using effi cient combinatorial approaches. The proposed approach is applicable to analyzing systems with components having general time-tofailure distributions. The basics and advantages of the proposed approach are illustrated through a detailed analysis of an example.
    Źródło:
    Eksploatacja i Niezawodność; 2009, 3; 65-69
    1507-2711
    Pojawia się w:
    Eksploatacja i Niezawodność
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mechanical behavior of clinched sheet material joints and strength design procedure
    Autorzy:
    He, X.
    Gao, A.
    Yang, H.
    Xing, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/1155166.pdf
    Data publikacji:
    2016-04
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    46.70.-p
    Opis:
    Clinching is an effective joining technique for lightweight sheet materials that are difficult or impossible to weld. A theoretical model for clinched joints in metal sheets was established and a design method for improving joint strength by selecting different clinching tools was proposed. The analytic model is defined as a function of the neck-thickness and the undercut, which are the key parameters of joint geometry. Based on the analytic model, the design method of clinched joint strength that can satisfy required strength was proposed. Clinching experiments were conducted with 2.00 mm thick aluminium alloy 5052 sheets. Various conditions were used during the clinching process to validate the joint strength model. Tensile-shear strength of clinched joints was measured by a servo-hydraulic testing machine. The calculated joint strength was in good agreement with the experimental results.
    Źródło:
    Acta Physica Polonica A; 2016, 129, 4; 698-700
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mechanical Properties and Fracture Analysis of Clinched Joints in Titanium Sheet Materials
    Autorzy:
    He, X.
    Lei, L.
    Zhang, Y.
    Xing, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/1030360.pdf
    Data publikacji:
    2017-01
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    46.70.-p
    Opis:
    Mechanical fastening techniques are used extensively in different industry fields for joining various materials in the assembly of components and structures. The use of mechanical clinching is of interest to different industries such as aerospace, automotive, packaging and domestic appliance. This, together with increasing use of light-weight materials, has produced a significant increase in the use of mechanical clinching in light-weight structures in recent years. This paper deals with the mechanical properties and fracture analysis of extensible die clinched joints in the dissimilar metal sheets combinations of titanium sheet material and aluminum sheet material. Tensile-shear tests were carried out to characterize the mechanical properties of different clinched joints made of the dissimilar metal sheets combinations. The normal hypothesis tests were performed to examine the rationality of the test data. The load-bearing capacity and failure modes of different titanium sheets clinched joints were studied. Results showed that most titanium sheets clinched joints failed in the neck fracture mode. Results also showed that the load-bearing capacity of clinch joints with titanium as upper sheets is higher than that of the clinched joints with titanium as lower sheets.
    Źródło:
    Acta Physica Polonica A; 2017, 131, 1; 16-19
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Rapid screening of monoclonal antibodies against porcine circovirus type 2 using colloidal gold-based paper test
    Autorzy:
    Jin, Q.Y.
    Feng, L.L.
    Wang, Y.B.
    Li, P.
    Yang, J.F.
    Teng, M.
    Chai, S.J.
    Xing, G.X.
    Zhang, G.P.
    Powiązania:
    https://bibliotekanauki.pl/articles/16539073.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czasopisma i Monografie PAN
    Tematy:
    porcine circovirus type 2 (PCV2)
    screening of MAbs
    paper test
    Opis:
    A proof of concept for using paper test as a suitable method in the production of monoclonal antibodies (MAbs) is reported. The paper test which detects antibodies against porcine circovirus type 2 (PCV2) using colloidal gold-labelled capsid protein as the antigen probe was applied exclusively in the screening of anti-PCV2 MAbs. It allowed the detection of 118 single cell clones within 30 min using naked eyes. MAbs with specific binding to authentic epitopes on the virus were selected using a blocking strategy in which the antibody was pre-incubated with PCV2 viral sample before applying to the test paper. Five hybridomas secreting MAbs against the capsid protein were obtained, with only three of them capable of binding to PCV2. The results were validated and confirmed using enzyme-linked immunosorbent assay and immunofluorescence assay. The paper test is simple, rapid, and independent on professional technicians and proves to be an excellent approach for the screening of MAbs against specific targets.
    Źródło:
    Polish Journal of Veterinary Sciences; 2022, 25, 1; 27-34
    1505-1773
    Pojawia się w:
    Polish Journal of Veterinary Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Strength and Fracture Analysis of Single-Lap Self-Pierce Riveted Joints
    Autorzy:
    He, X.
    Lu, Y.
    Liu, F.
    Xing, B.
    Zeng, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/1192386.pdf
    Data publikacji:
    2015-04
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    46.70.-p
    Opis:
    Due to the increased use of lightweight sheet materials, there has been a significant increase in the use of self-pierce riveting. This paper deals with the strength and fracture mechanism of single-lap self-pierce riveted joints. The online window technique was introduced in the single-lap self-pierce riveting processes for evaluating the quality of joints. Signals obtained from sensors were amplified and transferred to the data acquisition system which measures, processes and saves the signals. Monotonic tensile tests were carried out to measure the ultimate tensile strengths for the single-lap self-pierce riveted joints. For investigating the fracture mechanism of the single-lap self-pierce riveted joints, the electrolytic polishing and anode film coating were used for dealing with the cross-section. The differential interference contrast method was used for observing the micro-structure of the cross-section of the joints. The distribution of the hardness in the cross-section of the single-lap self-pierce riveted joints was also studied. The normal hypothesis tests were performed to examine the rationality of the test data.
    Źródło:
    Acta Physica Polonica A; 2015, 127, 4; 1424-1426
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Vertebral fusion in two Early Jurassic sauropodomorph dinosaurs from the Lufeg Formation of Yunnan, China
    Autorzy:
    Xing, L.
    Rothschild, B.M.
    Ran, H.
    Miyashita, T.
    Scott Persons IV, W.
    Sekiya, T.
    Zhang, J.
    Wang, T.
    Dong, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/19988.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Opis:
    Here we describe two instances of pathological vertebral fusion in two genera of sauropodomorph dinosaurs from the Early Jurassic Lufeng Formation in Yunnan, China. The first is a specimen, of Lufengosaurus huenei with two fused cervical vertebrae, and the other is a specimen of the Lufeng basal sauropod, with two fused caudal vertebrae. Both pathologies are consistent with spondyloarthropathy and represent the earliest known occurrence of that disease in dinosaurs. The two specimens affirm that early dinosaurs suffered from the same bone diseases as living vertebrates. Spondyloarthropathy in these dinosaurs may have been induced by long-term mechanical stress, such as weight bearing, and/or limited motion at the joint that would otherwise have inhibited such remodeling. In both cases, surface remodeling suggests that the animals survived well beyond the initiation of spondyloarthropathy.
    Źródło:
    Acta Palaeontologica Polonica; 2015, 60, 3
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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