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    Wyświetlanie 1-5 z 5
    Tytuł:
    The Impact of Photo Overlap, the Number of Control Points and the Method of Camera Calibration on the Accuracy of 3D Model Reconstruction
    Autorzy:
    Róg, Marta
    Rzonca, Antoni
    Powiązania:
    https://bibliotekanauki.pl/articles/1838019.pdf
    Data publikacji:
    2021
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    SfM algorithm
    3D reconstruction
    close range photogrammetry
    accuracy assessment
    photogrammetric network parameters
    Opis:
    This research attempted to determine the optimal photo overlap, number of control points and method of camera calibration for a photogrammetric 3D model reconstruction of an object of cultural heritage value. Terrestrial images of the object were taken with a hand held digital camera and processed in the ContextCapture software using the Structure from Motion (SfM) algorithm. A total station was used to measure ground control points (GCPs) and check points. Here, the research workflow, methodology, and various analyses concerning different configurations of the aforementioned factors are described. An at tempt to assess the parameters which should be implemented in order to pro vide a high degree of accuracy of the model and reduce time consumption both during fieldwork and data processing was taken. The manuscript discusses the results of the analyses and compares them with other studies presented by different authors and indicates further potential directions of studies within this scope. Based on the authors’ experience with this research, some general conclusions and remarks concerning the planning of photo acquisition from the terrestrial level for the purpose of 3D model reconstruction were formulated.
    Źródło:
    Geomatics and Environmental Engineering; 2021, 15, 2; 67-87
    1898-1135
    Pojawia się w:
    Geomatics and Environmental Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Conformations, orientations and time scales characterising dimyristoylphosphatidylcholine bilayer membrane. Molecular dynamicssimulation studies
    Autorzy:
    Pasenkiewicz-Gierula, Marta
    Róg, Tomasz
    Powiązania:
    https://bibliotekanauki.pl/articles/1044932.pdf
    Data publikacji:
    1997
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Źródło:
    Acta Biochimica Polonica; 1997, 44, 3; 607-624
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Molecular dynamics simulations of charged and neutral lipid bilayers: treatment of electrostatic interactions.
    Autorzy:
    Róg, Tomasz
    Murzyn, Krzysztof
    Pasenkiewicz-Gierula, Marta
    Powiązania:
    https://bibliotekanauki.pl/articles/1043453.pdf
    Data publikacji:
    2003
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    membrane hydration
    cut-off distance
    chain order
    phospholipid
    lateral diffusion
    particle-mesh Ewald
    Opis:
    Molecular dynamics (MD) simulations complement experimental methods in studies of the structure and dynamics of lipid bilayers. The choice of algorithms employed in this computational method represents a trade-off between the accuracy and real calculation time. The largest portion of the simulation time is devoted to calculation of long-range electrostatic interactions. To speed-up evaluation of these interactions, various approximations have been used. The most common ones are the truncation of long-range interactions with the use of cut-offs, and the particle-mesh Ewald (PME) method. In this study, several multi-nanosecond cut-off and PME simulations were performed to establish the influence of the simulation protocol on the bilayer properties. Two bilayers were used. One consisted of neutral phosphatidylcholine molecules. The other was a mixed lipid bilayer consisting of neutral phosphatidylethanolamine and negatively charged phosphatidylglycerol molecules. The study shows that the cut-off simulation of a bilayer containing charge molecules generates artefacts; in particular the mobility and order of the charged molecules are vastly different from those determined experimentally. In the PME simulation, the bilayer properties are in general agreement with experimental data. The cut-off simulation of bilayers containing only uncharged molecules does not generate artefacts, nevertheless, the PME simulation gives generally better agreement with experimental data.
    Źródło:
    Acta Biochimica Polonica; 2003, 50, 3; 789-798
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Molecular dynamics simulation studies of lipid bilayer systems.
    Autorzy:
    Pasenkiewicz-Gierula, Marta
    Murzyn, Krzysztof
    Róg, Tomasz
    Czaplewski, Cezary
    Powiązania:
    https://bibliotekanauki.pl/articles/1044295.pdf
    Data publikacji:
    2000
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    phosphatidylethanolamine
    cholesterol
    vasopressin receptor,molecular dynamics simulations
    magainin-2
    phosphatidylcholine
    phosphatidylglycerol
    Opis:
    The main structural element of biological membranes is a liquid-crystalline lipid bilayer. Other constituents, i.e. proteins, sterols and peptides, either intercalate into or loosely attach to the bilayer. We applied a molecular dynamics simulation method to study membrane systems at various levels of compositional complexity. The studies were started from simple lipid bilayers containing a single type phosphatidylcholine (PC) and water molecules (PC bilayers). As a next step, cholesterol (Chol) molecules were introduced to the PC bilayers (PC-Chol bilayers). These studies provided detailed information about the structure and dynamics of the membrane/water interface and the hydrocarbon chain region in bilayers built of various types of PCs and Chol. This enabled studies of membrane systems of higher complexity. They included the investigation of an integral membrane protein in its natural environment of a PC bilayer, and the antibacterial activity of magainin-2. The latter study required the construction of a model bacterial membrane which consisted of two types of phospholipids and counter ions. Whenever published experimental data were available, the results of the simulations were compared with them.
    Źródło:
    Acta Biochimica Polonica; 2000, 47, 3; 601-611
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Drug–induced gingival overgrowth after cyclosporin A therapy
    Autorzy:
    Ambicki, Miłosz
    Brodowski, Robert
    Mucha, Marta
    Migut, Małgorzata
    Malawski-Róg, Adam
    Stopyra, Wojciech
    Lewandowski, Bogumił
    Powiązania:
    https://bibliotekanauki.pl/articles/454824.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Rzeszowski. Wydawnictwo Uniwersytetu Rzeszowskiego
    Tematy:
    drug-induced gingival overgrowth cyclosporin a
    gingivitis
    transplant
    Opis:
    Introduction. Drug–induced gingival overgrowth is a condition caused by side effects of treatment with one of three types of drugs: phenytoin (used in epilepsy treatment), cyclosporin A (used in transplantology after allogeneic organ transplants) and calcium channel blockers (in the treatment of hypertension). Gingival overgrowth leads to the development of inflammation within the gums and periodontium, reduced comfort in a patient’s life, and consequently even loss of teeth. Aim. The aim of this study was to present the issue of drug–induced gingival overgrowth based on a review of the literature and observations of patients treated in the Clinical Department of Maxillo-Facial Surgery, Frederic Chopin Provincial Specialist Hospital in Rzeszów. Case description. Massive gingival overgrowth requires surgical management. Attention should be paid to multidisciplinary cooperation in case of patients qualified for a transplant. It is also import_ant to qualify and evaluate the state of the oral cavity prior to the implementation of immunosuppressive medication, instruction of patients on oral hygiene and removal of the outbreaks of infection.
    Źródło:
    European Journal of Clinical and Experimental Medicine; 2017, 1; 82-86
    2544-2406
    2544-1361
    Pojawia się w:
    European Journal of Clinical and Experimental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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