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    Wyświetlanie 1-8 z 8
    Tytuł:
    The body self-awareness among women practicing fitness: a preliminary study
    Autorzy:
    Brytek-Matera, Anna
    Kozieł, Anna
    Powiązania:
    https://bibliotekanauki.pl/articles/430373.pdf
    Data publikacji:
    2015-03-01
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    body awareness
    interoceptive awareness
    fitness
    Opis:
    The purposes of the present study were to explore the relationship between body awareness and negative body attitude, interoceptive body awareness and physical self in women practicing fitness as well as to analyze the determinants of body awareness. The Body Awareness Questionnaire, the Multidimensional Assessment of Interoceptive Awareness, the Physical Self-Description Questionnaire and the Body Attitude Test were applied to 43 women practicing fitness and 32 non-fitness practitioners. Bodily self-awareness was connected with greater fitness practitioners’ interoceptive body awareness and greater physical self. Noticing and global esteem predicted body awareness in women practicing fitness.
    Źródło:
    Polish Psychological Bulletin; 2015, 46, 1; 104-111
    0079-2993
    Pojawia się w:
    Polish Psychological Bulletin
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Physical condition and physical fitness of the candidates for polar expeditions
    Autorzy:
    Kłossowski, Marek
    Łysoń-Wojciechowska, Grażyna
    Kwarecki, Krzysztof
    Powiązania:
    https://bibliotekanauki.pl/articles/2057656.pdf
    Data publikacji:
    1982
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    medical examination
    polar expeditions
    physical fitness
    Źródło:
    Polish Polar Research; 1982, 3, 1-2; 89-94
    0138-0338
    2081-8262
    Pojawia się w:
    Polish Polar Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evolutionary computation approaches to tip position controller design for a two-link flexible manipulator
    Autorzy:
    Subudhi, B.
    Ranasingh, S.
    Swain, A. K.
    Powiązania:
    https://bibliotekanauki.pl/articles/229971.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    flexible manipulator
    genetic algorithm
    bacteria foraging
    fitness function
    Opis:
    Controlling multi-link flexible robots is very difficult compared rigid ones due to inter-link coupling, nonlinear dynamics, distributed link flexure and under-actuation. Hence, while designing controllers for such systems the controllers should be equipped with optimal gain parameters. Evolutionary Computing (EC) approaches such as Genetic Algorithm (GA), Bacteria Foraging Optimization (BFO) are popular in achieving global parameter optimizations. In this paper we exploit these EC techniques in achieving optimal PD controller for controlling the tip position of a two-link flexible robot. Performance analysis of the EC tuned PD controllers applied to a two-link flexible robot system has been discussed with number of simulation results.
    Źródło:
    Archives of Control Sciences; 2011, 21, 3; 269-285
    1230-2384
    Pojawia się w:
    Archives of Control Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Hybrid Mesh Adaptive Direct Search and Genetic Algorithms Techniques for industrial production systems
    Autorzy:
    Vasant, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/229988.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    mesh adaptive direct search
    genetic algorithms
    fitness function
    degree of possibility
    level of satisfaction
    Opis:
    In this paper, computational and simulation results are presented for the performance of the fitness function, decision variables and CPU time of the proposed hybridization method of Mesh Adaptive Direct Search (MADS) and Genetic Algorithm (GA). MADS is a class of direct search of algorithms for nonlinear optimization. The MADS algorithm is a modification of the Pattern Search (PS) algorithm. The algorithms differ in how the set of points forming the mesh is computed. The PS algorithm uses fixed direction vectors, whereas the MADS algorithm uses random selection of vectors to define the mesh. A key advantage of MADS over PS is that local exploration of the space of variables is not restricted to a finite number of directions (poll directions). This is the primary drawback of PS algorithms, and therefore the main motivation in using MADS to solve the industrial production planning problem is to overcome this restriction. A thorough investigation on hybrid MADS and GA is performed for the quality of the best fitness function, decision variables and computational CPU time.
    Źródło:
    Archives of Control Sciences; 2011, 21, 3; 299-312
    1230-2384
    Pojawia się w:
    Archives of Control Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Aktywność fizyczna, (niepełno)sprawność i zdrowie w reklamach największych imprez sportowych świata
    Physical Activity, (Dis)Ability, and Health in Commercials during High-Profile Sports Events
    Autorzy:
    Sahaj, Tomasz
    Powiązania:
    https://bibliotekanauki.pl/articles/1373291.pdf
    Data publikacji:
    2016-09-19
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    physical activity
    mass media
    fitness
    advertising
    sport
    health
    aktywność fizyczna
    media masowe
    sprawność
    reklama
    zdrowie
    Opis:
    The aim of this article is to examine the commercials broadcast during prestigious sports events, such as the Super Bowl in the United States, the Olympic Games and Paralympic Games, and the World Cup and European Championship in football. The author uses the qualitative method and analyzes the content of the commercials as texts of contemporary culture. Mass media is the universal communication platform of the ‘global village.’ There is a certain expectation that it will be socially responsible, which is reflected in commercials involving disabled persons, or in those encouraging the audience to adopt an active, healthy lifestyle and to engage in sport as an antidote to civilizational diseases.
    Źródło:
    Kultura i Społeczeństwo; 2016, 60, 3; 35-57
    2300-195X
    Pojawia się w:
    Kultura i Społeczeństwo
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Optimization of thermo-electric coolers using hybrid genetic algorithm and simulated annealing
    Autorzy:
    Khanh, D. V. K.
    Vasant, P.
    Elamvazuthi, I.
    Dieu, V. N.
    Powiązania:
    https://bibliotekanauki.pl/articles/230105.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    thermo-electric coolers
    genetic algorithm
    simulated annealing
    coefficient of performance
    rate of refrigeration
    fitness function
    Opis:
    Thermo-electric Coolers (TECs) nowadays are applied in a wide range of thermal energy systems. This is due to their superior features where no refrigerant and dynamic parts are needed. TECs generate no electrical or acoustical noise and are environmentally friendly. Over the past decades, many researches were employed to improve the efficiency of TECs by enhancing the material parameters and design parameters. The material parameters are restricted by currently available materials and module fabricating technologies. Therefore, the main objective of TECs design is to determine a set of design parameters such as leg area, leg length and the number of legs. Two elements that play an important role when considering the suitability of TECs in applications are rated of refrigeration (ROR) and coefficient of performance (COP). In this paper, the review of some previous researches will be conducted to see the diversity of optimization in the design of TECs in enhancing the performance and efficiency. After that, single-objective optimization problems (SOP) will be tested first by using Genetic Algorithm (GA) and Simulated Annealing (SA) to optimize geometry properties so that TECs will operate at near optimal conditions. Equality constraint and inequality constraint were taken into consideration.
    Źródło:
    Archives of Control Sciences; 2014, 24, 2; 155-176
    1230-2384
    Pojawia się w:
    Archives of Control Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Short-term load prediction model combining FEW and IHS algorithm
    Autorzy:
    Yu, Mingxing
    Zhu, Jiazheng
    Yang, Li
    Powiązania:
    https://bibliotekanauki.pl/articles/141740.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    evaluation criteria
    exponential fuzzy time series
    fitness function
    improved harmony search algorithms
    load forecasting
    optimal interval length
    Opis:
    :Accurate prediction of power load plays a crucial role in the power industry and provides economic operation decisions for the power operation department. Due to the unpredictability and periodicity of power load, an improved method to deal with complex nonlinear relation was adopted, and a short-term load forecasting model combining FEW (fuzzy exponential weighting) and IHS (improved harmonic search) algorithms was proposed. Firstly, the domain space was defined, the harmony memory base was initialized, and the fuzzy logic relation was identified. Then the optimal interval length was calculated using the training sample data, and local and global optimum were updated by optimization criteria and judging criteria. Finally, the optimized parameters obtained by an IHS algorithm were applied to the FEW model and the load data of the Huludao region (2013) in Northeast China in May. The accuracy of the proposed model was verified using an evaluation criterion as the fitness function. The results of error analysis show that the model can effectively predict short-term power load data and has high stability and accuracy, which provides a reference for application of short-term prediction in other industrial fields.
    Źródło:
    Archives of Electrical Engineering; 2019, 68, 4; 907-923
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Plug-in direct particle swarm repetitive controller with a reduced dimensionality of a fitness landscape – a multi-swarm approach
    Autorzy:
    Ufnalski, B.
    Grzesiak, L. M.
    Powiązania:
    https://bibliotekanauki.pl/articles/202046.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    repetitive process control
    dynamic optimization problem
    particle swarm optimizer
    repetitive disturbance rejection
    noninteracting subswarms
    dimension-reduced fitness functional
    powtarzalne sterowanie procesem
    problem optymalizacji dynamicznej
    optymalizator rojem cząstek
    odrzucanie zakłóceń
    sprawność funkcjonalna
    Opis:
    The paper describes a modification to the recently developed plug-in direct particle swarm repetitive controller (PDPSRC) for the sine-wave constant-amplitude constant-frequency (CACF) voltage-source inverter (VSI). The original PDPSRC algorithm assumes that the particle swarm optimizer (PSO) takes into account a performance index defined over the whole reference signal period. Each particle stores all the samples of the control signal, e.g. α = 200 samples for a controller working at 10 kHz and the reference frequency equal to 50 Hz. Therefore, the fitness landscape (i.e. the performance index) is -dimensional ( D), which makes optimization challenging. That solution can be categorized as the single-swarm one. It has been previously shown that the swarm controller does not suffer from long-term stability issues encountered in the classic iterative learning controllers (ILC). However, the convergence of the swarm has to be kept at a relatively low rate to enable successful exploitation in the D search space, which in turn results in slow responsiveness of the PDPSRC. Here a multi-swarm approach is proposed in which we divide a dynamic optimization problem (DOP) among less dimensional swarms. The reference signal period is segmented into shorter intervals and the control signal is optimized in each interval independently by separate swarms. The effectiveness of the proposed approach is illustrated with the help of numerical experiments on the CACF VSI with an output LC filter operating under nonlinear loads.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2015, 63, 4; 857-866
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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