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Wyszukujesz frazę "Pan, P." wg kryterium: Autor

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    Wyświetlanie 1-5 z 5
    Tytuł:
    Nonnegativity, stability analysis of linear discrete-time positive descriptor systems: an optimization approach
    Autorzy:
    Yang, H.
    Zhou, M.
    Zhao, M.
    Pan, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/202195.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    descriptor systems
    positive systems
    positivity
    stability
    optimization
    stabilność
    optymalizacja
    deskryptor
    Opis:
    This paper discusses an efficient approach to the analysis of positivity and stability of linear discrete-time positive descriptor system. Irs main objective is to convert the necessary and sufficient condition of characterizing positivity and stability of positive descriptor systems into an optimization problem, then propose a method to numerically check the positivity and stability of the positive linear discrete-time systems. Comparing with the other methods now available, the approach presented in this paper is less theoretical and easier to implement. Examples are provided in order to validate results.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2018, 66, 1; 1-7
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Studies on the Melt Spinning Process of Square 8-hole Hollow Polyester Fibre
    Badania procesu przędzenia kwadratowych 8-otworowych włókien poliestrowych z pustymi przestrzeniami
    Autorzy:
    Feng, P.
    Pan, J.
    Ma, Q.
    Yang, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/233853.pdf
    Data publikacji:
    2018
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych
    Tematy:
    square 8-hole hollow fibre
    melt spinning spinneret capillaries
    włókno kwadratowe 8-otworowe
    włókno poliestrowe z pustymi przestrzeniami
    kapilara przędzalnicza
    Opis:
    In this paper, the shape of the spinneret capillary was discussed, and optimized spinneret capillaries were successfully processed by a computer numerical control processing method which takes a C-shape silver electrode as the basic unit. Based on the optimised spinning process, a new type of square 8-hole hollow PET fibre was prepared by the experimental method.
    W artykule omówiono i zoptymalizowano kształt kapilary przędzalniczej, przy użyciu komputerowej metody sterowania numerycznego i zastosowaniem srebrnej elektrody w kształcie litery C. W oparciu o zoptymalizowany proces przędzenia opracowano nowy rodzaj kwadratowych 8-otworowych włókien poliestrowych z pustymi przestrzeniami.
    Źródło:
    Fibres & Textiles in Eastern Europe; 2018, 3 (129); 14-16
    1230-3666
    2300-7354
    Pojawia się w:
    Fibres & Textiles in Eastern Europe
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Numerical and experimental verification of impact response of laminated aluminum composite structure
    Autorzy:
    Wang, Jifeng
    Morris, Tyler P.
    Bihamta, Reza
    Pan, Ye-Chen
    Powiązania:
    https://bibliotekanauki.pl/articles/140133.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    laminated aluminum structure
    axial drop
    buckling
    three-point bending
    flexural response
    delamination
    Opis:
    Laminated Aluminum Composite Structure (LACS) has shown great potential for replacing traditional bulk aluminum parts, due to its ability to maintain low manufacturing costs and create complex geometries. In this study, a LACS, that consists of 20 aluminum layers joined by a structural tape adhesive, was fabricated and tested to understand its impact performance. Three impact tests were conducted: axial drop, normal and transverse three-point bending drop tests. Numerical simulations were performed to predict the peak loads and failure modes during impacts. Material models with failure properties were used to simulate the cohesive failure, interfacial failure, and aluminum fracture. Various failure modes were observed experimentally (large plastic deformation, axial buckling, local wrinkling, aluminum fracture and delamination) and captured by simulations. Cross-section size of the axial drop model was varied to understand the LACS buckling direction and force response. For threepoint bending drop simulations, the mechanism causing the maximum plastic strain at various locations in the aluminum and adhesive layers was discussed. This study presents an insight to understand the axial and flexural responses under dynamic loading, and the failure modes in LACS. The developed simulation methodology can be used to predict the performance of LACS with more complex geometries.
    Źródło:
    Archive of Mechanical Engineering; 2020, LXVII, 2; 127-147
    0004-0738
    Pojawia się w:
    Archive of Mechanical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Characteristics of Magnetic Core in Magnetic Pulse Compression System
    Autorzy:
    Zhang, D.
    Yan, P.
    Sun, Y.
    Wang, J.
    Zhou, Y.
    Pan, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/1807880.pdf
    Data publikacji:
    2009-06
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    07.05.Tp
    42.65.Re
    75.60.Ej
    Opis:
    In order to obtain the characteristics of magnetic core under ≈0.5-5 μs saturation time, a one-stage magnetic pulse compression circuit without external demagnetization circuits which are commonly used in magnetic compressors is designed. The current through the core is calculated by voltage across the resistive load, and the loop voltage is picked up with a single wire loop and integrated by software. B-H curves are derived from the measured voltage and current wave forms. B-H curves show that the core loss is in inverse proportion to the time to saturation, whereas the percentile core loss decreases as the charging energy increases. While the eddy current loss and dissipated energy are in direct proportion to dB/dt. The low inductance of magnetic switch indicates that the core is saturated and behaves as an air core. By applying custom characteristics to each stage in Pspice simulation, more practical energy transfer in magnetic pulse compression and the effects of leakage current are presented.
    Źródło:
    Acta Physica Polonica A; 2009, 115, 6; 1001-1003
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Synchronization Study and Introductory Experiment οf Laser-Triggered Surface Flashover in Voltage Pulse
    Autorzy:
    Pan, R.
    Wang, J.
    Sun, Y.
    Sun, G.
    Yan, P.
    Zhang, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/1807974.pdf
    Data publikacji:
    2009-06
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    52.80.-s
    51.50.+v
    Opis:
    With the aim of studying the characteristics of laser-triggered surface flashover in voltage pulse, synchronization problem of laser pulse and voltage pulse should be solved. A single/double harmonic, with wavelength λ of 1064/532 nm, Q-switched Nd:YAG laser is used to trigger the surface flashover. The synchronization problem is solved using a self-made digital delay/pulse generator. The delay time and jitter of Marx's trigger input and output, Marx's trigger output and Marx's output, laser input and output are respectively measured. Based on the result of the delay time and the timing sequence of the laser triggering system, the synchronization of laser pulse and voltage pulse is obtained through adjusting the channel delay time of digital delay/pulse generator. In addition, introductory experiment of laser-triggered surface flashover is carried out using the flat electrodes and columned insulators.
    Źródło:
    Acta Physica Polonica A; 2009, 115, 6; 1167-1169
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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