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    Wyświetlanie 1-8 z 8
    Tytuł:
    Minimal and co-minimal projections in spaces of continuous functions
    Autorzy:
    Mielczarek, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/255592.pdf
    Data publikacji:
    2010
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    minimal projection
    co-minimal projection
    Opis:
    Minimal and co-minimal projections in the space C[0, 1] are studied. We construct a minimal and co-minimal projection from C[0, 1] onto a subspace Y defined in the introduction.
    Źródło:
    Opuscula Mathematica; 2010, 30, 4; 457-464
    1232-9274
    2300-6919
    Pojawia się w:
    Opuscula Mathematica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    On the uniqueness of minimal projections in Banach spaces
    Autorzy:
    Szlachtowska, E.
    Mielczarek, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/254897.pdf
    Data publikacji:
    2012
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    minimal projection
    orthogonal projection
    co-orthogonal projection
    uniqueness of norm-one projection
    Opis:
    Let X be a uniformly convex Banach space with a continuous semi-inner product. We investigate the relation of orthogonality in X and generalized projections acting on X. We prove uniqueness of orthogonal and co-orthogonal projections.
    Źródło:
    Opuscula Mathematica; 2012, 32, 3; 579-590
    1232-9274
    2300-6919
    Pojawia się w:
    Opuscula Mathematica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    On the maximum likelihood estimator in the generalized beta regression model
    Autorzy:
    Rydlewski, J. P.
    Mielczarek, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/255953.pdf
    Data publikacji:
    2012
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    nonlinear regression
    beta distribution
    scale parameter
    shape parameter
    maximum likelihood estimator
    Opis:
    The subject of this article is to present the beta – regression model, where we assume that one parameter in the model is described as a combination of algebraically independent continuous functions. The proposed beta model is useful when the dependent variable is continuous and restricted to the bounded interval. The parameters are obtained by maximum likelihood estimation. We prove that estimators are consistent and asymptotically normal.
    Źródło:
    Opuscula Mathematica; 2012, 32, 4; 761-774
    1232-9274
    2300-6919
    Pojawia się w:
    Opuscula Mathematica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Embedded system for remote control of a 3D camera rig
    Autorzy:
    Plewiński, P.
    Makowski, D.
    Mielczarek, A.
    Napieralski, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/397750.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Łódzka. Wydział Mikroelektroniki i Informatyki
    Tematy:
    3D camera rig
    remote control
    3D image recording
    embedded systems
    kamera 3D
    zdalne sterowanie
    nagrywanie obrazu 3D
    systemy wbudowane
    Opis:
    The production of stereoscopic motion pictures has been recently getting increasingly popular. To provide the best quality of the resulting image, the parameters controlled must precisely correspond to the values calculated by the stereoscopic image analysis platform or chosen by a camera operator. Currently no integrated system exists, which can provide remote monitoring and control of the parameters of 3D rig and cameras on it. The parameters should be controllable both by the Rig Controller software, tablet application or hand controller. The paper discusses an innovative system for remote control of 3D camera rig created within the Recording of 3D Image (ROS3D) research project. The system controls several parameters of both camera rig - stereo base, convergence and camera lenses - focus distance, aperture and focal length. Several approaches of implementation of a solution for the aforementioned problem are presented and compared. The first proposed approach used custom servo motor controller with CAN bus as the communication interface between connected devices, i.e. Rig Controller board and hand manipulators. Another solution contains a commercial servo motor controller connected to the Rig Controller board via RS232 and commercial hand controller. D-Bus Inter-Process Communication (IPC) system is used to communicate between the servo motor controller drivers and Rig Controller software.
    Źródło:
    International Journal of Microelectronics and Computer Science; 2016, 7, 3; 87-91
    2080-8755
    2353-9607
    Pojawia się w:
    International Journal of Microelectronics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Human machine interface for piezo control system
    Autorzy:
    Plewiński, P.
    Makowski, D.
    Mielczarek, A.
    Napieralski, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/398067.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Łódzka. Wydział Mikroelektroniki i Informatyki
    Tematy:
    human machine interface
    HMI
    High Energy Physics
    Qt
    Qt Quick
    QML
    EPICS
    BOY
    MicroTCA
    interfejs człowiek-maszyna
    fizyka wysokich energii
    Opis:
    The increasing complexity of scientific experiments puts a large number of requirements on the systems, which need to control and monitor the hardware components required for the experiments. This article discusses three different technologies of developing Human Machine Interface (HMÏ) for the Piezo Control System (PCS) developed at the Lodz University of Technology (TUL). The purpose of the PCS system is compensating the detuning of a superconducting accelerating structure caused by the Lorentz force. A set of full-custom HMI operator interface was needed to operate the prototype device. In order to select the technology, which would best suit the requirements; the interface was designed and developed in native Qt, Qt Quick and EPICS. The comparison was made and their advantages and drawbacks are presented.
    Źródło:
    International Journal of Microelectronics and Computer Science; 2017, 8, 4; 155-160
    2080-8755
    2353-9607
    Pojawia się w:
    International Journal of Microelectronics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    FMC Video Acquisition Module with Camera Link Interface
    Autorzy:
    Mielczarek, A.
    Makowski, D.
    Jabłoński, G.
    Perek, P.
    Orlikowski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/398003.pdf
    Data publikacji:
    2012
    Wydawca:
    Politechnika Łódzka. Wydział Mikroelektroniki i Informatyki
    Tematy:
    frame grabber
    kamera szybka
    Camera Link
    akwizycja obrazów
    akwizycja video
    moduł FMC
    fast camera
    image acquisition
    video acquisition
    FMC module
    Opis:
    The paper describes an universal module for video stream acquisition from fast cameras with Camera Link interface. The first version of the referenced standard defines three configurations: Base, Medium and Full. The developed module supports all of them achieving transmission speeds up to 5.44 Gb/s for raw image data in the Full configuration. The module is designed according to FPGA Mezzanine Card (FMC) standard and can cooperate with carrier boards containing High-Pin Count (HPC) version of the connector. The module was tested with the TEWS TAMC-641 module.
    Źródło:
    International Journal of Microelectronics and Computer Science; 2012, 3, 3; 95-98
    2080-8755
    2353-9607
    Pojawia się w:
    International Journal of Microelectronics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Module Management Controller for MicroTCA-based Controller Board
    Autorzy:
    Perek, P.
    Mielczarek, A.
    Prędki, P.
    Makowski, D.
    Napieralski, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/398031.pdf
    Data publikacji:
    2012
    Wydawca:
    Politechnika Łódzka. Wydział Mikroelektroniki i Informatyki
    Tematy:
    Micro Telecommunications Computing Architecture
    MicroTCA
    Module Management Controller
    xTCA
    xTCA for physics
    Opis:
    As a result of a growing interest in the xTCA systems by research centers conducting High Energy Physics (HEP) experiments, the PICMG xTCA for Physics Coordinating Committee is developing a new, attractive standards. They are specifically dedicated to control and data acquisition systems of HEP applications. These new specifications define a number of extensions to the Advanced Telecommunications Computing Architecture (ATCA) and Micro Telecommunications Computing Architecture ( μ TCA) standards. The MicroTCA for Physics specification, named MTCA.4, defines some new solutions in order to simplify an application of μ TCA specification in HEP facilities. The most important of them is μ RTM module which can be connected to the Advanced Mezzanine Card (AMC) and provides more usable area and additional I/O connectors at the rear of the shelf. The MTCA.4 also introduces additional channels dedicated for timing and synchronization signals that are available on backplane. Due to the fact that xTCA for Physics is a new specification which has not been officially published, both the AMC and μ RTM modules and the software for the MMC with possibility of μ RTM handling are not yet available. For this reason the preparation of firmware for the Module Management Controller (MMC) for AMC modules compatible with MicroTCA for Physics specification is required. This paper presents a structure of the MMC for the μ TC (MicroTCA-based Controller) board. It also describes the microcontroller software which fulfills the role of the MMC.
    Źródło:
    International Journal of Microelectronics and Computer Science; 2012, 3, 1; 25-31
    2080-8755
    2353-9607
    Pojawia się w:
    International Journal of Microelectronics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Broken heart as work-related accident: Occupational stress as a cause of takotsubo cardiomyopathy in 55-year-old female teacher – Role of automated function imaging in diagnostic workflow
    Autorzy:
    Mielczarek, Agnieszka
    Kasprzak, Jarosław D.
    Marcinkiewicz, Andrzej
    Kurpesa, Małgorzata
    Uznańska-Loch, Barbara
    Wierzbowska-Drabik, Karina
    Powiązania:
    https://bibliotekanauki.pl/articles/2177105.pdf
    Data publikacji:
    2015-08-07
    Wydawca:
    Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
    Tematy:
    occupational stress
    takotsubo cardiomyopathy
    broken heart syndrome
    accident at work
    automated function imaging
    speckle tracking echocardiography
    Opis:
    Takotsubo cardiomiopathy (TTC) (known also as “ampulla cardiomyopathy,” “apical ballooning” or “broken heart syndrome”) is connected with a temporary systolic left ventricular dysfunction without the culprit coronary lesion. Takotsubo cardiomyopathy was first described in 1990 in Japan after octopus trapping pot with a round bottom and narrow neck similar in shape to left ventriculogram in TTC patients. The occurrence of TTC is usually precipitated by a stressful event with a clinical presentation mimicking myocardial infarction: chest pain, ST-T segment elevation or T-wave inversion, a rise in cardiac troponin, and contractility abnormalities in echocardiography. A left ventricular dysfunction is transient and improves within a few weeks. Takotsubo cardiomyopathy typically occurs in postmenopausal women and the postulated mechanism is catecholamine overstimulation. Moreover, the distribution of contractility impairments usually does not correspond with typical region supplied by a single coronary artery. Therefore, the assessment of regional pattern of systolic dysfunction with speckle-tracking echocardiography and automated function imaging (AFI) technique may be important in diagnosis of TTC and may improve our insight into its patophysiology. We described a 55-year-old female teacher with TTC diagnosed after acute psychological stress in workplace. The provoking factor related with occupational stress and pattern of contraction abnormalities documented with AFI technique including basal segments of left ventricle make this case atypical.
    Źródło:
    International Journal of Occupational Medicine and Environmental Health; 2015, 28, 6; 1031-1034
    1232-1087
    1896-494X
    Pojawia się w:
    International Journal of Occupational Medicine and Environmental Health
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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