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    Wyświetlanie 1-13 z 13
    Tytuł:
    3-D simulation of vertical-axial tidal current turbine
    Autorzy:
    Zhang, Z.
    Ma, Y.
    Jiang, J.
    Liu, W.
    Ma, Q.
    Powiązania:
    https://bibliotekanauki.pl/articles/260421.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    tidal current energy
    vertical-axial turbine
    hydrodynamic performance
    CFD
    numerical simulation
    3-D effect
    Opis:
    Vertical-axial tidal current turbine is the key for the energy converter, which has the advantages of simple structure, adaptability to flow and uncomplex convection device. It has become the hot point for research and application recently. At present, the study on the hydrodynamic performance of vertical-axial tidal current turbine is almost on 2-D numerical simulation, without the consideration of 3-D effect. CFD (Computational Fluid Dynamics) method and blade optimal control technique are used to improve accuracy in the prediction of tidal current turbine hydrodynamic performance. Numerical simulation of vertical-axial tidal current turbine is validated. Fixed and variable deflection angle turbine are comparatively studied to analysis the influence of 3-D effect and the character of fluid field and pressure field. The method, put the plate on the end of blade, of reduce the energy loss caused by 3-D effect is proposed. The 3-D CFD numerical model of vertical-axial tidal current turbine hydrodynamic performance in this study may provide theoretical, methodical and technical reference for the optimal design of turbine.
    Źródło:
    Polish Maritime Research; 2016, 4; 73-83
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An unconditionally positive and global stability preserving NSFD scheme for an epidemic model with vaccination
    Autorzy:
    Ding, D.
    Ma, Q.
    Ding, X.
    Powiązania:
    https://bibliotekanauki.pl/articles/330497.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    nonstandard finite difference
    unconditional positivity
    stability
    Lyapunov function
    metoda różnic skończonych
    stabilność
    funkcja Lyapunova
    Opis:
    In this paper, a NonStandard Finite Difference (NSFD) scheme is constructed, which can be used to determine numerical solutions for an epidemic model with vaccination. Here the NSFD method is employed to derive a set of difference equations for the epidemic model with vaccination. We show that difference equations have the same dynamics as the original differential system, such as the positivity of the solutions and the stability of the equilibria, without being restricted by the time step. Our proof of global stability utilizes the method of Lyapunov functions. Numerical simulation illustrates the effectiveness of our results.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2014, 24, 3; 635-646
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dynamic Balance Optimisation for the Middle Shaft System of a Cotton Comber Based on ADAMS
    Optymalizacja równowagi dymanicznej czesarki bawełniarskiej z użyciem programu ADAMS
    Autorzy:
    Xu, B.
    Ma, Q.
    Liu, X.
    Powiązania:
    https://bibliotekanauki.pl/articles/233902.pdf
    Data publikacji:
    2012
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych
    Tematy:
    czesarka bawełniana
    program ADAMS
    drgania przędzarki
    optymalizacja drgań
    cotton comber
    dynamic balance design
    parameterization design
    Opis:
    For the vibration problem of a cotton comber, a model of the middle shaft system of a headstock was built using SOLIDWORKS software. It was found that the vibration was mainly caused by the shifting of the centroid. Then a dynamic optimisation model was established according to the dynamic balancing theory using the revolving method. The installment of the middle shaft system was optimised using ADAMS software with the aim of minimising its counterforce. The optimal value of the flange plate and timing regulation plan are given correspondingly. The results show that the noise and vibration of the comber CM500 are decreased significantly.
    Dla rozważenia problemu drgań przędzarki bawełniarskiej, opracowano model zespołu wału środkowego głowicy wykorzystując program SOLIDWORKS. Stwierdzono, że wibracje powstają głównie przez przesunięcie środka ciężkości. Opracowano dynamiczny model optymizacji drgań zgodnie z teorią dynamicznego równoważenia. Opracowano sposób zamocowania wału z wykorzystaniem programu ADAMS, przyjmując jako kryterium minimum siły reakcji. Podano parametry zamocowania oraz schemat regulacji. Stwierdzono, że po optymalizacji wartość drgań i hałasu została wyraźnie zmniejszona.
    Źródło:
    Fibres & Textiles in Eastern Europe; 2012, 3 (92); 43-45
    1230-3666
    2300-7354
    Pojawia się w:
    Fibres & Textiles in Eastern Europe
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Order estimation of japanese paragraphs by supervised machine learning and various textual features
    Autorzy:
    Murata, M.
    Ito, S.
    Tokuhisa, M.
    Ma, Q.
    Powiązania:
    https://bibliotekanauki.pl/articles/91894.pdf
    Data publikacji:
    2015
    Wydawca:
    Społeczna Akademia Nauk w Łodzi. Polskie Towarzystwo Sieci Neuronowych
    Tematy:
    supervised machine learning
    estimate
    paragraph
    vector machine
    SVM
    feature analysis
    nadzorowane uczenie maszynowe
    oszacowanie
    paragraf
    maszyna wektorów nośnych
    analiza funkcji
    Opis:
    In this paper, we propose a method to estimate the order of paragraphs by supervised machine learning. We use a support vector machine (SVM) for supervised machine learning. The estimation of paragraph order is useful for sentence generation and sentence correction. The proposed method obtained a high accuracy (0.84) in the order estimation experiments of the first two paragraphs of an article. In addition, it obtained a higher accuracy than the baseline method in the experiments using two paragraphs of an article. We performed feature analysis and we found that adnominals, conjunctions, and dates were effective for the order estimation of the first two paragraphs, and the ratio of new words and the similarity between the preceding paragraphs and an estimated paragraph were effective for the order estimation of all pairs of paragraphs.
    Źródło:
    Journal of Artificial Intelligence and Soft Computing Research; 2015, 5, 4; 247-255
    2083-2567
    2449-6499
    Pojawia się w:
    Journal of Artificial Intelligence and Soft Computing Research
    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:
    An optimization approach to the intermodal transportation network in fruit cold chain, considering cost, quality degradation and carbon dioxide footprint
    Autorzy:
    Ma, Q.
    Wang, W.
    Peng, Y.
    Song, X.
    Powiązania:
    https://bibliotekanauki.pl/articles/260179.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    intermodal transport network
    quality model
    refrigerated container
    fruit cold chain
    integer linear programming
    Opis:
    This model optimizes port hinterland intermodal refrigerated container flows , considering both cost and quality degradation, which is distinctive from the previous literature content in a way that it quantifies the influence of carbon dioxide (CO2) emission in different setting temperature on intermodal network planning. The primary contribution of this paper is that the model is beneficial not only to shippers and customers for the novel service design, but also offer , for policy-makers of the government, insights to develop inland transport infrastructures in consideration of intermodal transportation. The majority of models of multimodal system have been established with an objective of cost minimization for normal commodities. As the food quality is possible to be influenced by varying duration time required for the storage and transportation, and transportation accompanied with refrigeration producing more CO2 emission, this paper aims to address cost minimization and quality degradation minimization within the constraint of CO2 footprint. To achieve this aim, we put the quality degradation model in a mixed-integer linear programming model used for intermodal network planning for cold chain. The example of Dalian Port and Yingkou Port offer insight into trade-offs between transportation temperature and transport mode considering CO2 footprint. Furthermore, the model can offer a useful reference for other regions with the demand for different imported food, which requires an uninterrupted cold chain during the transportation and storage.
    Źródło:
    Polish Maritime Research; 2018, 1; 61-69
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    VvWRKY13 enhances ABA biosynthesis in Vitis vinifera
    Autorzy:
    Hao, J.
    Ma, Q.
    Hou, L.
    Zhao, F.
    Liu, X.
    Powiązania:
    https://bibliotekanauki.pl/articles/58583.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Opis:
    Abscisic acid (ABA) plays critical roles in plant growth and development as well as in plants’ responses to abiotic stresses. We previously isolated VvWRKY13, a novel transcription factor, from Vitis vinifera (grapevine), and here we present evidence that VvWRKY13 may regulate ABA biosynthesis in plants. When VvWRKY13 was ectopically expressed in Arabidopsis, the transgenic lines showed delayed seed germination, smaller stomatal aperture size, and several other phenotypic changes, indicating elevated ABA levels in these plants. Sequence analysis of several genes that are involved in grapevine ABA synthetic pathway identified WRKY-specific binding elements (W-box or W-like box) in the promoter regions. Indeed, transient overexpression of VvWRKY13 in grapevine leaves significantly increased the transcript levels of ABA synthetic pathway genes. Taken together, we conclude that VvWRKY13 may promote ABA production by activating genes in the ABA synthetic pathway.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2017, 86, 2
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Microstructure and Mechanical Properties of Duplex Structured Mg-Li-Zn-Y Alloys
    Autorzy:
    Su, J.
    Yang, Y.
    Fu, X.
    Ma, Q.
    Ren, F.
    Peng, X.
    Powiązania:
    https://bibliotekanauki.pl/articles/381787.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    alloy Mg-Li-Zn-Y
    microstructure
    mechanical properties
    extruded
    stop Mg-Li-Zn-Y
    mikrostruktura
    właściwości mechaniczne
    wytłaczanie
    Opis:
    As-cast Mg-6Li-0.3Zn-0.6Y and Mg-6Li-1.2Zn-1.2Y (wt%) alloys were prepared and extruded at 260 ºC with an extrusion ratio of 25. The microstructure and mechanical behavior of as-cast and extruded alloys are reported and discussed. The results show that Mg-6Li-1.2Zn- 1.2Y alloy is composed of α-Mg, β-Li, and W-Mg3Zn3Y2 phases while Mg-6Li-0.3Zn-0.6Y alloy contains α-Mg, β-Li, W-Mg3Zn3Y2 phase and X-Mg12ZnY. After hot extrusion, the microstructure of specimens is refined and the average grains size of extruded alloys is 15 μm. Dynamic recrystallization occurs during the extrusion, leading to grain refinement of test alloys. Both the strength and elongation of test alloys are improved by extrusion. The extruded Mg-6Li-0.3Zn-0.6Y alloy possesses an ultimate strength of 225 MPa with an elongation of 18% while the strength and elongation of Mg-6Li-1.2Zn-1.2Y alloy are 206 MPa and 28%, respectively. The X-phase in Mg-6Li-0.3Zn- 0.6Y is beneficial to the improvement of strength, but will lead to the decrease of ductility.
    Źródło:
    Archives of Foundry Engineering; 2018, 18, 1; 181-185
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Reinforcement of the TNT System by a Newly-designed GAP-based Polyurethane-Urea: a Molecular Simulation Investigation
    Autorzy:
    Qian, W.
    Shu, Y.
    Ma, Q.
    Li, H.
    Wang, S.
    Chen, X.
    Powiązania:
    https://bibliotekanauki.pl/articles/358512.pdf
    Data publikacji:
    2016
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
    Tematy:
    TNT
    GAP
    polyurethane-urea
    inter-molecular interaction
    mechanical properties
    Opis:
    A glycidyl azide (GAP)-based polyurethane-urea (PUU) modifier used in the 1,3,5-trinitrotoluene (TNT)-based composite explosive was investigated by molecular simulation. Inter-molecular interactions were investigated using quantum chemistry calculation on the dimer of TNT and GAP-PUU, and attractive forces were found between the two molecules. The cohesive energy densities and the solubility parameters were obtained through molecular dynamics simulations combined with thermodynamic calculations on the TNT and GAP-PUU amorphous cell models, and the miscibility of the modifier in molten TNT was predicted to be good. The interaction energies and the mechanical properties were then obtained by molecular simulations and mechanical calculations on the solid-phase models of the GAP-PUU with TNT along three crystalline directions, and an improvement in the mechanical properties was predicted.
    Źródło:
    Central European Journal of Energetic Materials; 2016, 13, 2; 411-426
    1733-7178
    Pojawia się w:
    Central European Journal of Energetic Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A Facile Synthesis of 3,3'-Dinitro-5,5'-diamino-bi-1,2,4-triazole and a Study of Its Thermal Decomposition
    Autorzy:
    Ma, Q.
    Lu, H.
    Qu, Y.
    Liao, L.
    Li, J.
    Fan, G.
    Chen, Y.
    Powiązania:
    https://bibliotekanauki.pl/articles/358272.pdf
    Data publikacji:
    2017
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
    Tematy:
    3,3’-dinitro-5,5’-diamino-bi-1,2,4-triazole
    facile synthesis
    DSC-TG
    RSFTIR
    TG-IR
    thermolysis
    Opis:
    3,3’-Dinitro-5,5’-diamino-bi-1,2,4-triazole (DABNT) was synthesized by a facile method and its crystalline density was determined as 1.839 g·cm−3 at 293(2) K by X-ray diffraction. Its thermal decomposition kinetics and mechanism were studied by means of differential scanning calorimetry-thermogravimetry (DCS-TG), in situ thermolysis by rapid-scan Fourier transform infrared spectroscopy (RSFTIR) and simultaneous TG-IR technology. The results showed that the apparent activation energies obtained by the Kissinger, Ozawa and Starink methods were 122.9 kJ·mol−1, 123.2 kJ·mol−1 and 123.5 kJ·mol−1, respectively. The thermodynamic parameters of ΔS≠, ΔH≠ and ΔG≠ were −37.5 J·K−1·mol−1, 118.4 kJ·mol−1 and 138.7 kJ·mol−1, respectively. The decomposition reaction process of DABNT starts with the transformation from a primary amine to a secondary amine and then the loss of one nitro-group from the DABNT structure. Gaseous products, such as N2O and H2O, were detected from decomposition in the range of 50-300 °C. Density functional theory (DFT) calculations were further employed to illustrate the decomposition mechanism. The above-mentioned information on the synthesis and thermal behaviour is quite useful for the scale-up and evaluation of the thermal safety of DABNT.
    Źródło:
    Central European Journal of Energetic Materials; 2017, 14, 2; 281-295
    1733-7178
    Pojawia się w:
    Central European Journal of Energetic Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Kinetics of photoelectrocatalytic degradation of diclofenac using N, S co-doped TiO2 nano-crystallite decorated TiO2 nanotube arrays photoelectrode
    Autorzy:
    Cui, Y.
    Deng, X.
    Ma, Q.
    Zhang, H.
    Cheng, X.
    Li, X.
    Xie, M.
    Cheng, Q.
    Li, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/207955.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    effluents
    nanotubes
    sodium sulfate
    sulfur compounds
    yarn
    photoelectrocatalytic degradation
    ścieki
    nanorurki
    siarczan sodu
    związki siarki
    przędza
    Opis:
    As a non-steroidal anti-inflammatory drug, diclofenac, was commonly used as analgesic, antiarthritic and antirheumatic, and has frequently been detected in municipal wastewater treatment plants (MWTPs) effluents and demonstrated to be potentially environmental risk on human beings. In the present study, N, S co-doped TiO2 nano-crystallites decorated TiO2 nano-tube arrays (N, S-TiO2 NCs/TiO2 NTAs) photoelectrode was used to degrade diclofenac containing wastewater. In addition, the effects of some critical parameters including initial pH, external positive potential, sodium sulfate concentration and initial diclofenac concentration on the photoelectrocatalytic (PEC) degradation of diclofenac containing wastewater and dynamic characteristics were investigated systematically. Results showed that N, S-TiO2 NCs/TiO2 NTAs photoelectrode exhibited high PEC efficiency for the degradation of diclofenac, in which the PEC processes fitted well with the Langmuir–Hinshelwood (L–H) model. Furthermore, external additional anions such as Cl–, ClO– and NO3 – played an important role in inhibiting the degradation of diclofenac. Also, the N, S-TiO2 NCs/TiO2 NTAs photoelectrode possessed good stability for consecutive applications for degradation of diclofenac, which could potentially be utilized in wastewater treatment.
    Źródło:
    Environment Protection Engineering; 2018, 44, 2; 117-130
    0324-8828
    Pojawia się w:
    Environment Protection Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Microstructure, Mechanical and Detonation Properties of Elastomeric Micro/Ultrafine-rubber Modified TNT-based Molten Energetic Composites
    Autorzy:
    Ma, Q.
    Wang, P.-S.
    Luo, G.
    Wen, M.-P.
    Gao, D.-Y.
    Zheng, B.-H.
    Shu, Y.-J.
    Powiązania:
    https://bibliotekanauki.pl/articles/358122.pdf
    Data publikacji:
    2015
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
    Tematy:
    micro and ultrafine rubber
    2,4,6-trinitrotoluene
    molten energetic composites
    mechanical properties
    detonation performance
    Opis:
    Elastomeric micro- and ultrafine-rubber are first considered as binders in melt-cast explosives for improving the mechanical properties. Acrylonitrile-butadiene rubber (NBR), in ultrafine fully vulcanized form (UF-NBR), carboxylated acrylonitrile-butadiene rubber (CNBR), in ultrafine fully vulcanized form (UF-CNBR), styrene-butadiene rubber (SBR), in ultrafine fully vulcanized form (UF-SBR), carboxylated styrene-butadiene rubber (CSBR), in ultrafine fully vulcanized form (UF-CSBR), acrylic rubber (ACM), in ultrafine fully vulcanized form (UF-ACM), room temperature vulcanized silicone rubber (RTV), in ultrafine fully vulcanized form (UF-RTV) and polytetrafluoroethene (PTFE) in micro-rubber form (PTFE-M) were utilized for modifying 2,4,6-trinitrotoluene (TNT) based melt-cast explosives. Based on their dispersity in TNT and RDX slurry, only UF-NBR, UF-CNBR and PTFE-M can be used. In the modification experiment, their influence on the mechanical and detonation performance of the matrixes were studied, as well as the impact sensitivity. Compared with PTFE-M and UF-CNBR, UF-NBR improved the tensile and compressive strength of the original formulation CYCLOTOL-65/35. The toughening mechanism was also explained through interfacial interactions and fracture energy analysis. The predicted detonation properties of the modified formulations (detonation pressure variations from 26 to 28 GPa, detonation velocity variations from 7900 to 8100 m/s) are at the same energy level as CYCLOTOL-65/35. In addition, the drop hammer impact testing results confirm that the formulation containing UF-NBR is more sensitive than the one with UF-CNBR, with the same amount of additive.
    Źródło:
    Central European Journal of Energetic Materials; 2015, 12, 4; 723-743
    1733-7178
    Pojawia się w:
    Central European Journal of Energetic Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Osteology of the Late Cretaceous alvarezsauroid Linhenykus monodactylus from China and comments on alvarezsauroid biogeography
    Autorzy:
    Xu, X.
    Upchurch, P.
    Ma, Q.
    Pittman, M.
    Choiniere, J.
    Sullivan, C.
    Hone, D.W.E.
    Tan, Q.
    Tan, L.
    Xiao, D.
    Han, F.
    Powiązania:
    https://bibliotekanauki.pl/articles/20629.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    osteology
    Cretaceous
    Late Cretaceous
    alvarezsauroid
    Linhenykus monodactylus
    China
    biogeography
    Dinosauria
    Theropoda
    Parvicursorinae
    Treefitte
    dispersal
    vicariance
    sympatry
    Wulansuhai Formation
    Inner Mongolia
    Opis:
    The alvarezsauroid theropod Linhenykus monodactylus from the Upper Cretaceous of Inner Mongolia, China is the first knownmonodactyl non−avian dinosaur, providing important information on the complex patterns of manual evolution seen in alvarezsauroids. Herewe provide a detailed description of the osteology of this taxon. Linhenykus shows a number of fea− tures that are transitional between parvicursorine and non−parvicursorine alvarezsauroids, but detailed comparisons also re− veal that some characters had a more complex distribution. We also use event−based tree−fitting to perform a quantitative analysis of alvarezsauroid biogeography incorporating several recently discovered taxa. The results suggest that there is no statistical support for previous biogeographic hypotheses that favour pure vicariance or pure dispersal scenarios as explana− tions for the distributions of alvarezsauroids across SouthAmerica, NorthAmerica andAsia. Instead, statistically significant biogeographic reconstructions suggest a dominant role for sympatric (or “within area”) events, combined with a mix of vicariance, dispersal and regional extinction. At present the alvarezsauroid data set is too small to completely resolve the biogeographic history of this group: future studies will need to create larger data sets that encompass additional clades.
    Źródło:
    Acta Palaeontologica Polonica; 2013, 58, 1
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-13 z 13

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