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    Wyświetlanie 1-12 z 12
    Tytuł:
    Model reduction using Harris hawk algorithm and moment matching
    Autorzy:
    Sharma, Aswant Kumar
    Sambariya, Dhanesh Kumar
    Powiązania:
    https://bibliotekanauki.pl/articles/1955205.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Harris hawk optimization
    ISE
    MIMO
    moment matching
    model order reduction
    SISO
    optymalizacja Harris hawk
    dopasowanie momentu
    redukcja rzędu modelu
    Opis:
    Physical machine systems are represented in the form of differential equations. These differential equations may be of the higher order and difficult to analyses. Therefore, it is necessary to convert the higher-order to lower order which replicates approximately similar properties of the higher-order system (HOS). This article presents a novel approach to reducing the higher-order model. The approach is based on the hunting demeanor of the hawk and escaping of the prey. The proposed method unifies the Harris hawk algorithm and the moment matching technique. The method is applied on single input single output (SISO), multi-input multi-output (MIMO) linear time–invariant (LTI) systems. The proposed method is justified by examining the result. The results are compared using the step response characteristics and response error indices. The response indices are integral square error, integral absolute error, integral time absolute error. The step response characteristics such as rise time, peak, peak time, settling time of the proposed reduced order follows 97%–100% of the original system characteristics.
    Źródło:
    Archives of Electrical Engineering; 2021, 70, 4; 959-978
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Application of trapezoidal integration method in determining discrete time windows
    Autorzy:
    Purczyński, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/97211.pdf
    Data publikacji:
    2011
    Wydawca:
    Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
    Tematy:
    Dirichlet window
    trapezoidal integration method
    Blackman-Harris window
    Źródło:
    Computer Applications in Electrical Engineering; 2011, 9; 12-22
    1508-4248
    Pojawia się w:
    Computer Applications in Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    On the classification of Markov chains via occupation measures
    Autorzy:
    Hernández-Lerma, Onésimo
    Lasserre, Jean
    Powiązania:
    https://bibliotekanauki.pl/articles/1208160.pdf
    Data publikacji:
    2000
    Wydawca:
    Polska Akademia Nauk. Instytut Matematyczny PAN
    Tematy:
    absolute continuity
    positive Harris recurrence
    setwise convergence
    measures
    Opis:
    We consider a Markov chain on a locally compact separable metric space $X$ and with a unique invariant probability. We show that such a chain can be classified into two categories according to the type of convergence of the expected occupation measures. Several properties in each category are investigated.
    Źródło:
    Applicationes Mathematicae; 2000, 27, 4; 489-498
    1233-7234
    Pojawia się w:
    Applicationes Mathematicae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mark Harris as a Naturalistic Theist: The Perspective of the Model of Levels of Analysis
    Autorzy:
    Bylica, Piotr
    Powiązania:
    https://bibliotekanauki.pl/articles/553362.pdf
    Data publikacji:
    2015
    Wydawca:
    Uniwersytet Zielonogórski. Instytut Filozofii
    Tematy:
    theism
    naturalism
    naturalistic theism
    science and religion
    Mark Harris
    biblical studies
    Opis:
    Presently, naturalistic theism is the dominant position in the debate on the relation between science and religion, defending a thesis that the conflict between science and religion is only an apparent one. Also, this version of theism accepts the naturalist assumptions behind contemporary science and attempts to reformulate the beliefs held within the traditional Christian theism in order to present the religious view of reality as not conflicting with the scientific picture of the world. Certain assumptions behind Mark Harris’s views on the relations between science and religion can be described as consistent with naturalistic theism. The model of levels of analysis helps to analyze the most important themes found within naturalistic theism and show how these are described in the works of Harris. The model facilitates the identification of the relations between particular kinds of assumptions behind the position taken from the point of view of naturalistic theism in the debate on the relation between science and religion. The list of most frequently recurring assumptions — that are also important in Harris’s writings — include: the general division of epistemic competence, which assumes theology (religion) to be competent in dealing with the metaphysical issues (Levels 1 and 2) and science to be the only one competent to deliver the empirical statements describing processes and entities found within the empirical sphere (Levels 4 and 5); the acceptance of the naturalistic assumptions behind contemporary science (Level 2) and skepticism toward the religious notions found in the traditional Christian theism describing supernatural interventions and toward the dualist interpretation of human soul (Level 3). This leads to the acceptance of purely scientific, naturalistic, explanations of the events found within the empirical sphere and to skepticism toward the literal meaning of descriptions of empirical events (Level 5) that are not consistent with the anti-interventionist assumptions behind science. Harris’s acceptance of naturalistic theism in terms of the relation between science and religion and his use of the techniques found in the modern biblical scholarship have led him to the ideas of plurality of meanings and the lack of one definite truth with respect to the specific issues he deals with. From the point of view of MLA it is the rejection of super-naturalistic assumptions of the traditional Christian theism and the acceptance of the naturalistic assumptions of science that seems to be the cause of lack of definite truth in his theological explanations.
    Źródło:
    Filozoficzne Aspekty Genezy; 2015, 12; 7-36
    2299-0356
    Pojawia się w:
    Filozoficzne Aspekty Genezy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Acting Styles of the British New Wave
    Autorzy:
    ŚLIWIŃSKA, ANNA
    Powiązania:
    https://bibliotekanauki.pl/articles/920965.pdf
    Data publikacji:
    2016-11-03
    Wydawca:
    Uniwersytet im. Adama Mickiewicza w Poznaniu
    Tematy:
    acting styles
    British New Wave
    Richard Harris
    Richard Burton
    Tom Courtenay
    Opis:
    Acting Styles of the British New Wave British New Wave cinema is typically associated with two groups of actors. One includes those with an established position (such as Peter Finch, Laurence Olivier or Dirk Bogarde), and the other those at the beginning of their film career. The latter group seems to be much more interesting in terms of their lives, background and their methods of work. Most of them come from a working-class, non-artistic background (from which the directors of New Wave films asked them to draw inspiration). However, all of them received a solid theatrical education. In this way, a unique collage of skills and experience was created, the elements of which produced a very interesting artistic result. This sheds new light on the phenomenon of the British New Wave: actors, graduates of renowned schools, known from the most famous theatres and troupes (such as the Royal Court Theatre, the Royal Shakespeare Company or the Old Vic) end up in films where they are supposed to play characters from the lower social classes, speak their language and make reference to their own memories and background.
    Źródło:
    Images. The International Journal of European Film, Performing Arts and Audiovisual Communication; 2016, 19, 28; 95-110
    1731-450X
    Pojawia się w:
    Images. The International Journal of European Film, Performing Arts and Audiovisual Communication
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Power system oscillation damping controller design: a novel approach of integrated HHO-PSO algorithm
    Autorzy:
    Devarapalli, Ramesh
    Kumar, Vikash
    Powiązania:
    https://bibliotekanauki.pl/articles/1845539.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Harris hawk optimization
    power system stabilizers
    STATCOM
    FACTS
    particle swarm optimization
    Opis:
    The hybridization of a recently suggested Harris hawk’s optimizer (HHO) with the traditional particle swarm optimization (PSO) has been proposed in this paper. The velocity function update in each iteration of the PSO technique has been adopted to avoid being trapped into local search space with HHO. The performance of the proposed Integrated HHO-PSO (IHHOPSO) is evaluated using 23 benchmark functions and compared with the novel algorithms and hybrid versions of the neighbouring standard algorithms. Statistical analysis with the proposed algorithm is presented, and the effectiveness is shown in the comparison of grey wolf optimization (GWO), Harris hawks optimizer (HHO), barnacles matting optimization (BMO) and hybrid GWO-PSO algorithms. The comparison in convergence characters with the considered set of optimization methods also presented along with the boxplot. The proposed algorithm is further validated via an emerging engineering case study of controller parameter tuning of power system stability enhancement problem. The considered case study tunes the parameters of STATCOM and power system stabilizers (PSS) connected in a sample power network with the proposed IHHOPSO algorithm. A multi-objective function has been considered and different operating conditions has been investigated in this papers which recommends proposed algorithm in an effective damping of power network oscillations.
    Źródło:
    Archives of Control Sciences; 2021, 31, 3; 553-591
    1230-2384
    Pojawia się w:
    Archives of Control Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Power system oscillation damping controller design: a novel approach of integrated HHO-PSO algorithm
    Autorzy:
    Devarapalli, Ramesh
    Kumar, Vikash
    Powiązania:
    https://bibliotekanauki.pl/articles/1845528.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Harris hawk optimization
    power system stabilizers
    STATCOM
    FACTS
    particle swarm optimization
    Opis:
    The hybridization of a recently suggested Harris hawk’s optimizer (HHO) with the traditional particle swarm optimization (PSO) has been proposed in this paper. The velocity function update in each iteration of the PSO technique has been adopted to avoid being trapped into local search space with HHO. The performance of the proposed Integrated HHO-PSO (IHHOPSO) is evaluated using 23 benchmark functions and compared with the novel algorithms and hybrid versions of the neighbouring standard algorithms. Statistical analysis with the proposed algorithm is presented, and the effectiveness is shown in the comparison of grey wolf optimization (GWO), Harris hawks optimizer (HHO), barnacles matting optimization (BMO) and hybrid GWO-PSO algorithms. The comparison in convergence characters with the considered set of optimization methods also presented along with the boxplot. The proposed algorithm is further validated via an emerging engineering case study of controller parameter tuning of power system stability enhancement problem. The considered case study tunes the parameters of STATCOM and power system stabilizers (PSS) connected in a sample power network with the proposed IHHOPSO algorithm. A multi-objective function has been considered and different operating conditions has been investigated in this papers which recommends proposed algorithm in an effective damping of power network oscillations.
    Źródło:
    Archives of Control Sciences; 2021, 31, 3; 553-591
    1230-2384
    Pojawia się w:
    Archives of Control Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Hip joint arthroscopy in professionally active patients with osteoarthritis
    Autorzy:
    Drobniewski, Marek
    Synder, Marek
    Skrzypek, Michał
    Pstrągowski, Kajetan
    Polguj, Michał
    Borowski, Andrzej
    Powiązania:
    https://bibliotekanauki.pl/articles/2161984.pdf
    Data publikacji:
    2019-02-27
    Wydawca:
    Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
    Tematy:
    degenerative disease
    return to work
    arthroscopy
    hip joint
    WOMAC
    Harris Hip Score
    Opis:
    Objectives The primary endpoints of the study were to assess the effectiveness of hip joint arthroscopy in the treatment of femoroacetabular impingement (FAI) in patients with joint gap stenosis and to determine if and how quickly patients were able to return to work and physical activity. Material and Methods The prospective study of patients undergoing hip joint arthroscopy due to pain in FAI has been conducted. They were divided into 2 groups depending on the degree of the radiological examination. The criterion was the width of the joint gap. The study group involved 47 patients with hip joint gap of 2–3 mm, identified by means of the standardized X-ray examination. The control group consisted of 45 patients with hip joint gap > 3 mm. The post-operative follow-up period of the patients lasted at least 2 years. In addition, the Western Ontario McMaster Universities Osteoarthritis Index (WOMAC) questionnaire together with Harris Hip Score (HHS) were applied. The patients were also evaluated for the post-operative time period enabling return to work. Results All the patients after hip joint arthroscopy returned to normal physical activity within 12 weeks after operation, enabling their return to work. However, it should be noted that during the post-operative follow-up, pain sensations either recurred or did not regress in 37 patients in the study group and 12 patients in the control group after treatment. The nearly equal results of the WOMAC questionnaire and HHS before operation significantly vary between both groups in the last follow up. In the study group they did not change expressively. Conclusions Despite the little invasiveness, hip joint arthroscopy in patients with joint gap stenosis brings about the far from satisfactory results. This procedure is not worth considering. Despite unsatisfactory pain relief, patients decided to returned to work, due to their occupational position and for fear of losing the job due to long absenteeism. Int J Occup Med Environ Health. 2019;32(1):115–20
    Źródło:
    International Journal of Occupational Medicine and Environmental Health; 2019, 32, 1; 115-120
    1232-1087
    1896-494X
    Pojawia się w:
    International Journal of Occupational Medicine and Environmental Health
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Postural stability disorders in patients with osteoarthritis of the hip
    Autorzy:
    Truszczyńska, A.
    Rąpała, K.
    Gmitrzykowska, E.
    Trzaskoma, Z.
    Drzał-Grabiec, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/306214.pdf
    Data publikacji:
    2014
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    postural stability
    Biodex
    coxarthrosis
    Harris Hip Score
    WOMAC
    stabilność postawy
    koksartroza
    postawa ciała
    Opis:
    The osteoarthritis of the hip dominant symptom is pain that leads to disability and to postural and gait disorders. The aim of this study was to analyze postural stability and its impact on disability and pain. The study population consisted of 60 patients and control group of 30. Group 1 (n = 30) included patients with unilateral coxarthrosis, aged 56.2 (±12.3) years, BMI 25.17 (±2.87) kg/m2. There were 16 men (53.3%). The mean age of patients in group 2 (n = 30) with bilateral coxarthrosis was 62.3 (±12.1) years; the mean BMI was 24.87 (±2.06) kg/m2. There were 15 men in this group (50%). The patients were evaluated using the WOMAC, the Harris Hip Score, VAS and the Biodex Balance System. Both study groups had stability index results different than the control group. There was a significant correlation between the stability indexes and BMI. VAS correlated with the M-L plane variance. In group 2, there were significant differences related to disability for the disability scales for all measured parameters. Balance disorder is a basic parameter found in coxathrosis. There is a statistically significant correlation between balance disorders and BMI, VAS and functional scales.
    Źródło:
    Acta of Bioengineering and Biomechanics; 2014, 16, 1; 45-50
    1509-409X
    2450-6303
    Pojawia się w:
    Acta of Bioengineering and Biomechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Digital watermarking algorithm based on 4-level discrete wavelet transform and discrete fractional angular transform
    Autorzy:
    Li, Jing-You
    Zhao, Chun-Hui
    Zhang, Guang-Da
    Powiązania:
    https://bibliotekanauki.pl/articles/2033921.pdf
    Data publikacji:
    2021
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    digital watermarking algorithm
    mix optical bistability
    Harris feature point detection
    discrete wavelet transform
    discrete fractional angular transform
    singular value decomposition
    Opis:
    Nowadays, there are many watermarking algorithms based on wavelet transform. The simple one is to insert directly the watermark into the wavelet transform coefficients. However, most of the existing watermarking schemes can only resist traditional signal processing attacks, such as image compression, noise and filtering. When the watermarked image is subject to geometric transformations, especially rotation attack, it is hard to detect the watermark successfully. In this paper, a digital watermarking algorithm is proposed based on 4-level discrete wavelet transform and discrete fractional angular transform. To enhance the security of the algorithm, the watermark is scrambled with the simplicity of Arnold transform and chaos-based mix optical bistability model, since the chaos is pseudorandom and sensitive to the initial values. And the watermark is embedded into the medium frequency sub-band of the 1-level wavelet decomposition according to the Harris feature point detection. Simulation results show that the proposed digital watermarking algorithm by combining 4-level discrete wavelet transform with discrete fractional angular transform could resist rotation attack and other common attacks.
    Źródło:
    Optica Applicata; 2021, 51, 4; 605-619
    0078-5466
    1899-7015
    Pojawia się w:
    Optica Applicata
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Population structure, morphometry and individual condition of the non-native crab Rhithropanopeus harrisii (Gould, 1841), a recent coloniser of the Gulf of Gdansk (Southern Baltic Sea)
    Autorzy:
    Hegele-Drywa, J.
    Normant, M.
    Szwarc, B.
    Podluska, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/49100.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    Harris mud crab
    Rhithropanopeus harrisii
    non-native species
    Gdansk Gulf
    Southern Baltic Sea
    population structure
    morphometry
    condition factor
    biological invasion
    Źródło:
    Oceanologia; 2014, 56, 4
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Theology for Nones: Helping People Find God in a Secular Age
    Autorzy:
    Delfino, Robert A.
    Gniadek, Andrew
    Powiązania:
    https://bibliotekanauki.pl/articles/507392.pdf
    Data publikacji:
    2017-03-30
    Wydawca:
    International Étienne Gilson Society
    Tematy:
    nones
    atheists
    agnostics
    naturalists
    spiritual but not religious
    disenchantment
    secularization theory
    scientism
    natural theology
    spiritual centers
    Sam Harris
    Richard Dawkins
    Walter Rauschenbusch
    Mary Eberstadt
    Charles Taylor
    Joseph Bottum
    Saint Thomas Aquinas
    Jacques Maritain
    Mariano Artigas
    Opis:
    One-third of all adults under the age of thirty in the United States of America are ‘nones’. Nones include atheists, agnostics, and those who answer “nothing in particular” to religious survey questions. In this article the authors examine the rise of the nones, drawing upon the work of Mary Eberstadt, Charles Taylor, and Joseph Bottum. We classify the nones into three groups: naturalists, transcendent spiritualists, and non-transcendent spiritualists. After discussing various challenges for evangelization among the nones, we propose some ideas to address these challenges. Here we draw upon the work of Saint Thomas Aquinas, Jacques Maritain, and Mariano Artigas. Finally, we discuss some cultural concerns and problems that would probably result if the rise of the nones is left unaddressed.
    Źródło:
    Studia Gilsoniana; 2017, 6, 1; 31-46
    2300-0066
    Pojawia się w:
    Studia Gilsoniana
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-12 z 12

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