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    Wyświetlanie 1-9 z 9
    Tytuł:
    Synthesis of control unit with modified operational linear chains
    Synteza jednostki sterującej z wykorzystaniem zmodyfikowanych liniowych łańcuchów operacyjnych
    Autorzy:
    Barkalov, A. A.
    Titarenko, L.
    Bieganowski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/152657.pdf
    Data publikacji:
    2007
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    mikroinstrukcja
    mikroprogramowy układ sterujący
    CPLD
    PAL
    microinstruction
    control memory
    compositional microprogram control unit (CMCU)
    Opis:
    The method that considers optimization of the amount of PAL macrocells in the circuit of compositional microprogram control unit is proposed. The method is based on the introduction of additional microinstructions codes of the classes of pseudoequivalent operational linear chains. The proposed method is based on usage of the natural redundancy of embedded memory blocks which are used to implement the control memory. An example of application of proposed method is given.
    W artykule przedstawiono metodę optymalizacji liczby makrokomórek PAL mikroprogramowalnego układu sterującego. Proponowana metoda wykorzystuje dodatkowe mikroinstrukcje zawierające kody pseudo-równoważnych liniowych łańcuchów operacyjnych. Rozwiązanie wykorzystuje osadzone bloki pamięci, które często pozostają niezagospodarowane, do implementacji pamięci sterownika. W artykule przedstawiono także przykład zastosowania omawianej metody.
    Źródło:
    Pomiary Automatyka Kontrola; 2007, R. 53, nr 5, 5; 15-17
    0032-4140
    Pojawia się w:
    Pomiary Automatyka Kontrola
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Control system design for multi-rotor MAV
    Autorzy:
    Wang, W.
    Ma, H.
    Sun, C.-Y.
    Powiązania:
    https://bibliotekanauki.pl/articles/280407.pdf
    Data publikacji:
    2013
    Wydawca:
    Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
    Tematy:
    MAV
    attitude control
    altitude control
    LQG
    memory based control
    Opis:
    Abstract MAVs (Micro Air Vehicles) have attracted more and more attention in recent years because of their wide applications, such as investigations of inhospitable environment, nuclear or hazardous material polluted regions and other inaccessible areas. In this paper, both attitude and altitude controls of a Quad-Rotor type MAV are discussed and analyzed. To stabilize the attitude, one order memory based controller is selected, the performance of which is independent of the detail model information, leading to enhanced robustness. While for the altitude, a Linear Quadratic Gaussian (LQG) controller is proposed. The experimental results of the real flight demonstrate the stability and robustness of the controllers.
    Źródło:
    Journal of Theoretical and Applied Mechanics; 2013, 51, 4; 1027-1038
    1429-2955
    Pojawia się w:
    Journal of Theoretical and Applied Mechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    EEG NEUROFEEDBACK IN THE TREATMENT OF COGNITIVE DYSFUNCTIONS AFTER THE INFECTION OF SARS-COV-2 AND LONG COVID-19
    Autorzy:
    Łuckoś, Maria
    Cielebąk, Ksenia
    Kamiński, Paweł
    Powiązania:
    https://bibliotekanauki.pl/articles/2138045.pdf
    Data publikacji:
    2021-08-31
    Wydawca:
    Fundacja Edukacji Medycznej, Promocji Zdrowia, Sztuki i Kultury Ars Medica
    Tematy:
    cognitive control
    stress
    anxiety
    working memory
    Opis:
    Coronavirus disease 2019 (COVID-19) is likely to have long-term mental health effects on individuals who have recovered from COVID-19. According to Centers for Disease Control and Prevention (CDC), individuals diagnosed with COVID-19 can see a range of long-term side effects. The aim of the study was to evaluate the effectiveness of neurotherapy (EEG neurofeedback and goal-oriented cognitive training) in the treatment of neurocognitive dysfunctions in a patient after the infection of SARS-CoV-2 and the long long-term side effects after the contraction of COVID-19. The 48-year-old woman ZR, an accountant by profession, an employee of the administration of the Municipal Board of Municipal Resources, fell ill on October 13, 2020. The disease began with very severe burning headache, eyeballs pain, muscle aches. Ten days later more symptoms joined: loss of smell (anosmia) and loss of taste (ageusia), hearing disorders, shortness of breath and chest pains. The symptoms were associated with SARS-CoV-2 coron- avirus infection confirmed by an rt-PCR genetic test. Brain MRI with intravenous paramagnetic contrast medium injection did not show either lesions of acute microischemic significance or areas of pathological enhancement after paramagnetic contrast medium ad- ministration. The patient was treated at home. In mid-November 2020, about a month after the infection of SARS-CoV-2 and con- tracting NeuroCOVID-19, neurocognitive impairment developed and after half a year she was deteriorating and not able to live in- dependently in society because of her condition. She called her problem "brain fog", and was referred for further diagnosis and therapy to the Reintegration and Training Center of the Polish Neuropsychological Society. We diagnosed a range of long-term side effects and introduced neurotherapy (EEG neurofeedback and goal-oriented cognitive training) in the treatment of neurocognitive dysfunctions. It was found that almost all the long-term side effects were reduced in magnitude. The patient improved and she was able to return to work. EEG neurofeedback and goal-oriented cognitive training might be helpful in the reduction of neurocognitive dysfunctions in patients following the infection of SARS-CoV-2 and long-term side effects after the contraction of COVID-19.
    Źródło:
    Acta Neuropsychologica; 2021, 19(3); 361-372
    1730-7503
    2084-4298
    Pojawia się w:
    Acta Neuropsychologica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    EVENT-RELATED POTENTIALS STUDIES OF PTSD AFTER INFECTION OF SARS-COV-2 AND NEUROCOVID-19
    Autorzy:
    Pąchalska, Maria
    Nowaczyk, Natalia
    Powiązania:
    https://bibliotekanauki.pl/articles/2138057.pdf
    Data publikacji:
    2021-08-31
    Wydawca:
    Fundacja Edukacji Medycznej, Promocji Zdrowia, Sztuki i Kultury Ars Medica
    Tematy:
    traumatic event
    stress
    anxiety
    working memory
    cognitive control
    Opis:
    Coronavirus disease 19 (COVID-19) hospitalisation is a potentially traumatic experience, especially in severe cases. Furthermore, the unprecedented context of the SARS-CoV-2 pandemic, with the daily media bombardment about COVID-19 mortality, may have amplified its life-threatening perception also in patients with moderate infection. The purpose of our study was twofold: 1) to evaluate QEEG/ERPs shows of PTSD associated with severe infection SARS-CoV-2, and neuroCOVID-19, 2) to construct a neurofeedback protocol based on these indices to support the psychotherapy of the case study described herein. Patient N.C. 49, a frontline healthcare worker in the emergency services (an ambulance driver), became ill with Covid-19 on November 14, 2020. Initially, he lost his sense of smell (anosmia), of taste (ageusia), and had latent blinks (heterophila), headaches, and dizziness. After 10 days of illness, the patient had additionally a dry cough and a shortness of breath and he was hospitalized, sedated and mechanically ventilated for 24 days. After a few months he was diagnosed with PTSD (according to the DSM- 5 criteria) and referred to the Reintegration and Training Center of the Polish Neuropsychological Society for further diagnosis and treatment. It was found that the P3 GO and P3 NOGO waves were indeed less in his case (p < 0.01) when compared to the ERPs results of a health group of individuals of a similar age (n = 100), derived from the normative data bases of the Human Brain Index (HBI) in Switzerland. The ERPs wave pattern in our patient reflects the pattern appearing in patients with PTSD. The patient took part in 20 sessions of individually tailored anodal transcranial direct current stimulation (tDCS), with the excitatory stimulation of the left prefrontal cortex and inhibitory stimulation of the right prefrontal cortex which can reduce anxiety, as was proposed in the subject literature. Also, the neuromarker of PTSD obtained with the use of QEEG/ERPs was helpful in choosing the appropriate tDCS protocol. Neurostimulation with the use of tDCS was administered systematically, every day, 15-20 and 30-40 minutes for each session, for 20 days. He also received individual sessions of psychotherapy every day, 30-40 minutes for each session, for 20 day. After the treatment the patient improved and returned to his previous job as a frontline healthcare worker in the emergency services (an ambulance driver) in the fight against COVID-19. Detection of the PTSD neuromarker enabled the development of a proper tDCS protocol and the conduct of effective brain neurostimulation of a patient with PTSD. The proposed protocol of treatment, in combination with goal-oriented individual psychotherapy, offered to the patient, was effective in the reduction of PTSD. ERPs can be useful in the diagnosis of PTSD as well as in selecting an appropriate therapy protocol for these patients.
    Źródło:
    Acta Neuropsychologica; 2021, 19(3); 347-360
    1730-7503
    2084-4298
    Pojawia się w:
    Acta Neuropsychologica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    ERPS AS AN INDEX OF IMPAIRED COGNITIVE CONTROL IN AN ISCHEMIC BRAIN STROKE APHASIC PATIENT
    Autorzy:
    Cielebąk, Ksenia
    Grzywniak, Celestyna
    Powiązania:
    https://bibliotekanauki.pl/articles/2137979.pdf
    Data publikacji:
    2021-01-15
    Wydawca:
    Fundacja Edukacji Medycznej, Promocji Zdrowia, Sztuki i Kultury Ars Medica
    Tematy:
    ERPs
    attention
    working memory
    naming problem
    cognitive control
    Opis:
    Stroke is a sudden-onset neurological deficit resulting from focal vascular lesions. This is either due to a clot-induced obstruction of a vessel (ischemic stroke) or a rupture of a vessel causing haemorrhage (hemorrhagic stroke). The appropriate diagnosis of brain stroke aphasic patients is a major public health problem one so important for effective rehabilitation. Here an important role is played by the diagnosis of impaired cognitive processes. The aim of the research was to find the index of impaired cognitive control with the use of ERPs in a patient following an ischemic stroke with aphasia. A male patient, aged 69, after an ischemic brain stroke experienced 4 months previously with resulting naming problem, was admitted to the Reintegrative and Teaching Center of the Polish Neuropsychological Society. In the neuropsychological evaluation three neuropsychological tests were employed: (a) the Boston Naming Test-Polish version, to evaluate the naming and word finding problem; (b) the nonverbal Bell test to ascertain a selective, visuospatial and strategic attentional evaluation; (c) the Digit Memory test to evaluate working memory capabilities; (d) ERPs as a neurophysiological index of impaired cognitive control. Significant changes were observed in testing. All cognitive functions including naming, nonverbal, visuospatial and strategic attention, along with the digit memory deviate substantially from the norm. The patient obtained a lo wer score, compared to the norm (p <0.05). Boston Naming Test (patient = 21< Mean-Norm = 57.29; SD= 0.52). Bell test (patient = 23 < Mean-Norm = 31.29; SD= 2.52). Digit Memory Test scores: Forward digit span (patient = 3 < Mean-Norm = 7.65, SD = 0.49). Backward digit span (patient = 2
    Źródło:
    Acta Neuropsychologica; 2021, 19(1); 11-22
    1730-7503
    2084-4298
    Pojawia się w:
    Acta Neuropsychologica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Linear q-Difference Fractional-Order Control Systems with Finite Memory
    Autorzy:
    Mozyrska, D.
    Pawłuszewicz, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/387319.pdf
    Data publikacji:
    2011
    Wydawca:
    Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
    Tematy:
    obserwowalność
    możliwość kontroli
    pamięć
    układ sterowania
    memory
    control system
    observability
    controllability
    Opis:
    The formula for the solution to linear q-difference fractional-order control systems with finite memory is derived. New definitions of observability and controllability are proposed by using the concept of extended initial conditions. The rank condition for observability is established and the control law is stated.
    Źródło:
    Acta Mechanica et Automatica; 2011, 5, 2; 69-73
    1898-4088
    2300-5319
    Pojawia się w:
    Acta Mechanica et Automatica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Selected measurement and control techniques : experimental verification on a lab-scaled overhead crane
    Autorzy:
    Szpytko, J.
    Hyla, P.
    Kosoń-Schab, A.
    Smoczek, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/950147.pdf
    Data publikacji:
    2017
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    overhead crane
    modelling
    vision systems
    anti-sway control
    Metal Magnetic Memory
    Opis:
    This article presents three independent concepts of use high-level technique with it adaptation and implementation concerning overhead travelling crane device type. The main objective of this statement applies a solution for device workspace mapping, payload anti-sway control techniques strategy use and possibility of reliable steel construction health monitoring. In the first chapter, the vision system technology for obstacle in workspace visualization was presented. The main idea depends on use stereovision system with sets of camera mounted under the crane’s trolley which movement with the crane shifts. The stereo pictures, after digital processing, were used for develop so-called dense disparity map. The described architecture allows achieving information about device surroundings and obstacle position in the workspace. As the final result was presented three-dimensional map of the device workspace with obtained result accuracy discussion. The second type of described problem developed in chapter two concern the crane control methodology of designing the anti-sway system for payload stabilizing during the crane movement. The oscillation of a payload adversely affects the accuracy of performed transportation tasks and may present a safety hazard to employees, transferred payload and surrounding objects. The invented and described method mainly base on so-called soft computing methods. The next part of the article-focused attention of problem concerning health monitoring cranes construction as other equipment’s as well. The problem concerns usually the large industrial cranes carry out transportation operations in the presence of a large impact load and mechanical stresses acting overall crane’s structure. The safety and efficiency of crane operations can be improved through providing the continuous structural health monitoring as well in on-line and off-line mode. The main idea allows using Metal Magnetic Memory technique for supervising and estimating steel construction actual condition. All tests and considerations were conducted on the scaled physical model of overhead travelling crane with hosting capability 150 kg
    Źródło:
    Journal of KONES; 2017, 24, 3; 299-308
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The structure and regulative function of the cognitive styles: a new theory
    Autorzy:
    Nosal, Czeslaw S.
    Powiązania:
    https://bibliotekanauki.pl/articles/430568.pdf
    Data publikacji:
    2010
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    cognitive styles
    cognitive styles theory
    perceptual styles
    memory styles
    conceptual styles
    control styles
    cognitive holon
    Opis:
    The organization of human cognitive styles can be described as a kind of functional system or as an holon. In this framework it is possible to propose a new theoretical base for classifying the primary cognitive styles. The fundamental theoretical thesis is that for all styles there is one common mechanism of forming and scanning the perceptual and memory field induced by the situation, and by the differences in the manner of carrying out the processes of field scanning /codes interfering depend on the range of conceptual equivalency and cognitive control of behavior. In the functional describing of the basic set of cognitive styles we must take into account three elements of the chain: neurobiological modules -> organization of cognitive holon -> behavioral manifestation of styles.
    Źródło:
    Polish Psychological Bulletin; 2010, 41, 3
    0079-2993
    Pojawia się w:
    Polish Psychological Bulletin
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Reduction in the number of LUT elements for control units with code sharing
    Autorzy:
    Barkalov, A.
    Titarenko, L.
    Bieganowski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/908135.pdf
    Data publikacji:
    2010
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    mikroprogramowany układ sterujący
    współdzielenie kodów
    układ programowalny
    tablica przeglądowa
    field programmable gate array (FPGA)
    lookup table
    design
    Embedded Memory Block
    compositional microprogram control unit (CMCU)
    code sharing
    operational linear chain
    Opis:
    Two methods are proposed targeted at reduction in the number of look-up table elements in logic circuits of compositional microprogram control units (CMCUs) with code sharing. The methods assume the application of field-programmable gate arrays for the implementation of the combinational part of the CMCU, whereas embedded-memory blocks are used for implementation of its control memory. Both methods are based on the existence of classes of pseudoequivalent operational linear chains in a microprogram to be implemented. Conditions for the application of the proposed methods and examples of design are shown. Results of conducted experiments are given.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2010, 20, 4; 751-761
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-9 z 9

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