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    Wyświetlanie 1-6 z 6
    Tytuł:
    Experimental study on amplitude-frequency characteristic and basin stability of horizontally driven pendulum
    Autorzy:
    Jia, J.
    Wu, Y.
    Liu, W.
    Xiao, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/281610.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
    Tematy:
    horizontally driven pendulum system
    bifurcation
    basin stability
    Opis:
    In this article, an inverted pendulum system is set up to explore the dynamics of a horizontally driven pendulum which exhibits a great variety of dynamical behavior and appears in a wide range of applications in the field of engineering. The facility is efficient to experimentally explore two kinds of coexisting movement patterns in the horizontally driven pendulum, i.e. in-phase and anti-phase patterns between the angular velocity of the pendulum rod and the direction of the driving forces. Theoretical analysis is applied to reveal the regimes of the coexistence of the two movement patterns, which is promising to control the system to a desired pattern.
    Źródło:
    Journal of Theoretical and Applied Mechanics; 2016, 54, 3; 839-846
    1429-2955
    Pojawia się w:
    Journal of Theoretical and Applied Mechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Horse - Expert: an aided expert system for diagnosing horse diseases
    Autorzy:
    Qin, H.
    Xiao, J.
    Gao, X.
    Wang, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/31506.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Opis:
    In contrast to the rapid development of the horse husbandry in China, the ability of horse veterinarians to diagnose diseases has not been improved and only a few domain experts have considerable expertise. At present, many expert systems have been developed for diseases diagnosis, but few for horse diseases diagnosis have been studied in depth. This paper presents the design and development of a computer-aided expert system for diagnosing horse diseases. We suggest an approach for diagnosis of horse diseases based on the analysis of diagnostic characteristics and the experiential knowledge of domain experts. It is based on using evidence-weighted uncertainty reasoning theory, which is a combination of evidence theory and an uncertainty pass algorithm of confidence factors. It enables drawing of inferences with atypical clinical signs and the uncertainty of the user’s subjective understanding. It reduces the influence of subjective factors on diagnostic accuracy. The system utilizes a user friendly interface for users and requests a confidence factor from users when feedback is given to the system. Horse-Expert combines the confidence factors with weight factors assigned to clinical signs by experts during the knowledge acquisition process to make diagnostic conclusions. The system can diagnose 91 common horse diseases, and provides suggestions for appropriate treatment options. In addition, users can check the medical record through statistical charts. The system has been tested in seven demonstration areas of Xinjiang province in northwestern China. By constantly maintaining and updating the knowledge base, the system has potential application in veterinary practice.
    Źródło:
    Polish Journal of Veterinary Sciences; 2016, 19, 4
    1505-1773
    Pojawia się w:
    Polish Journal of Veterinary Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Flotation separation of cervantite from quartz
    Autorzy:
    Wang, J.
    Hua, Y.
    Yu, S.
    Xiao, J.
    Xu, L.
    Wang, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/110941.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    cervantite
    quartz
    dodecylamine
    flotation
    density functional theory
    Opis:
    Flotation separation of cervantite (Sb2O4) from quartz was investigated using dodecylamine (DDA) as a collector. Experiments were conducted on single minerals and on a synthetic mixture of quartz and cervantite. Flotation separation mechanisms were investigated using the zeta potential technique, solution chemistry principles, density functional calculations and Fourier Transform Infrared (FT-IR) spectroscopy. The results indicated that DDA, primarily in the form of molecules, exhibited excellent performance in flotation of cervantite and quartz at pH 10.5. The adsorption energy of the DDA molecules on the cervantite surface was greater than the adsorption energy of water molecules, while the adsorption energy of DDA on the quartz surface was less than the adsorption energy of water molecules. DDA molecules can be adsorbed on the quartz surface to a certain extent, but it was difficult for the same molecule to be adsorbed on the cervantite surface in the pulp. This resulted in flotation of quartz. DDA molecules were adsorbed on quartz not only through physical adsorption but also by hydrogen bonding. However, cervantite could not be floated at pH 10.5 since adsorption of DDA molecules occurred through weak physical bonds on cervantite.
    Źródło:
    Physicochemical Problems of Mineral Processing; 2017, 53, 2; 1119-1132
    1643-1049
    2084-4735
    Pojawia się w:
    Physicochemical Problems of Mineral Processing
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Study of flotation behavior and mechanism of cervantite activation by copper ions
    Autorzy:
    Wang, J.
    Wang, Y.
    Fu, K.
    Xu, L.
    Wang, Z.
    Sun, H.
    Xiao, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/110228.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    flotation
    cervantite
    copper ions
    activation mechanism
    Opis:
    Copper-ion activation plays a highly important role in cervantite (Sb2O4) flotation. Without metal-ion activation, cervantite cannot be floated by sodium oleate. In this study, flotation tests were conducted to study the effect of Cu2+ on the flotation behaviours of cervantite and quartz (SiO2) as the main gangue mineral. Metal-ion adsorption capacities, zeta potentials, solution chemistry and X-ray photoelectron spectra were analyzed to study the adsorption behavior and mechanism of copper ions and sodium oleate interaction with the minerals surfaces. The results demonstrate that under weakly acidic conditions, cervantite can be flotated and separated from quartz by the addition of copper ions. The reason is that copper ions can be selectively adsorbed on the cervantite surface under weakly acidic conditions, thereby promoting the adsorption of sodium oleate onto the cervantite surface by chemical adsorption. Conversely, copper ions are weakly adsorbed on quartz surfaces below pH 6.1, and sodium oleate cannot be adsorbed on quartz surfaces by chemical adsorption. The hydroxy copper species are integral to the selective activation of cervantite over quartz.
    Źródło:
    Physicochemical Problems of Mineral Processing; 2018, 54, 3; 814-825
    1643-1049
    2084-4735
    Pojawia się w:
    Physicochemical Problems of Mineral Processing
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Relationship of adiponectin, leptin, visfatin and IGF-1 in cow’s venous blood and venous cord blood with calf birth weight
    Autorzy:
    Shen, L.
    Zhu, Y.
    Xiao, J.
    Deng, J.
    Peng, G.
    Zuo, Z.
    Yu, S.
    Ma, X.
    Zhong, Z.
    Ren, Z.
    Zhou, Z.
    Liu, H.
    Zong, X.
    Cao, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/2087491.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    adiponectin
    leptin
    IGF-1
    birth weights
    cow
    Źródło:
    Polish Journal of Veterinary Sciences; 2019, 3; 541-548
    1505-1773
    Pojawia się w:
    Polish Journal of Veterinary Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Characterization of serum adiponectin and leptin in healthy perinatal dairy cows or cows with ketosis, and their effectson ketosis involved indices
    Autorzy:
    Shen, L.
    Qian, B.
    Xiao, J.
    Zhu, Y.
    Hussain, S.
    Deng, J.
    Peng, G.
    Zuo, Z.
    Zou, L.
    Yu, S.
    Ma, X.
    Zhong, Z.
    Ren, Z.
    Wang, Y.
    Liu, H.
    Zhou, Z.
    Cai, D.
    Hu, Y.
    Zong, X.
    Cao, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/2087289.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    adiponectin
    dairy cows
    ketosis
    leptin
    perinatal period
    Źródło:
    Polish Journal of Veterinary Sciences; 2020, 23, 3; 373-381
    1505-1773
    Pojawia się w:
    Polish Journal of Veterinary Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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