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    Wyświetlanie 1-6 z 6
    Tytuł:
    Simultaneous sitting PVU and DSTATCOM in distribution grid considering the effect of geographical condition
    Autorzy:
    Schalchi, F.
    Mozafari, B.
    Firouz, M. Hosseini
    Powiązania:
    https://bibliotekanauki.pl/articles/41194293.pdf
    Data publikacji:
    2024
    Wydawca:
    Politechnika Warszawska, Instytut Techniki Cieplnej
    Tematy:
    photovoltaic
    placement model
    operation effect
    DSTATCOM
    fotowoltaika
    model rozmieszczenia
    efekt operacyjny
    Opis:
    This paper proposes a model to allocate photovoltaic unit (PVU) and distribution static compensator (DSTATCOM) that incorporate the operation effect of PVU in sizing and sitting problem. The model is based on the dynamic assessment of PVU production and the effect of it on placement of PVU and DSTATCOM. Geographical conditions are interfered in placement problem of PVU and DSTATCOM simultaneously. The model is verified in a multi-objective form. The multi-objective problem is formulated based on voltage stability, liability, power loss and total cost of PVU and DSTATCOM. This problem is solved by employing optimization techniques and the results of optimization processes are tested in different scenarios. Uncertainty in network loads is an inevitable task that should be considered in network planning. Uncertainty in the presented model has been defined as a set of divided parts in the presented model. The proposed model has been evaluated on two test systems, 30 bus and 69 bus. The obtained results indicate that the presented model can be employed to study the intermittent behavior of PVU in placement problem.
    Źródło:
    Journal of Power Technologies; 2024, 104, 1; 1-14
    1425-1353
    Pojawia się w:
    Journal of Power Technologies
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Integracja migrantów do struktury miasta i społeczeństwa
    Integration of migrants into the structure of the city and society
    Autorzy:
    Babjak, W. I.
    Powiązania:
    https://bibliotekanauki.pl/articles/345403.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Krakowska im. Tadeusza Kościuszki. Wydział Architektury. Katedra Kształtowania Środowiska Mieszkaniowego
    Tematy:
    mieszkania dla migrantów
    integracja migrantów
    model ulokowania mieszkań
    środowisko mieszkaniowe
    housing for migrants
    integration of migrants
    model of housing placement
    housing environment
    Opis:
    Procesy globalne, obejmujące wszystkie dziedziny życia nie pozostawiają na uboczu również architekturę. W interesach naukowej wspólnoty jest wyprzedzenie i prognozowanie procesów społecznych. Podczas analizy problemów i tendencji teraźniejszości powstaje nie tylko problem naukowej obserwacji, ale i potrzeba uporządkowywania i skierowywania obiektywnych procesów do potrzebnego i pożytecznego społeczeństwu łożyska. Jednym z takich globalnych zjawisk jest fala międzynarodowej nieuregulowanej migracji, architektoniczny aspekt danego zjawiska zasługuje na oddzielne badanie i wyodrębnienie.
    Global processes that cover all areas of life do not leave aside architecture as well. Interests of the scientific community have the forecast and prediction of social processes. Analyzing the present problems and trends appears not only the problem of scientific observation, but also the need for ordering and directing objective processes in the necessary channel useful for society. One of such global phenomena is a wave of unregulated international migration, the architectural aspect of this phenomenon deserves a separate study and separation.
    Źródło:
    Środowisko Mieszkaniowe; 2017, 19; 115-122
    1731-2442
    2543-8700
    Pojawia się w:
    Środowisko Mieszkaniowe
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effective sensor placement based on a VIKOR method considering common cause failure in the presence of epistemic uncertainty
    Autorzy:
    Duan, Rong-Xing
    He, Jie-Jun
    Feng, Tao
    Huang, Shu-Juan
    Chen, Li
    Powiązania:
    https://bibliotekanauki.pl/articles/1841697.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
    Tematy:
    dynamic fault tree
    epistemic uncertainty
    sensor placement
    reliability criterion
    diagnostic sensor model
    Opis:
    Owing to expensive cost and restricted structure, limited sensors are allowed to install in modern systems to monitor the working state, which can improve their availability. Therefore, an effective sensor placement method is presented based on a VIKOR algorithm considering common cause failure (CCF) under epistemic uncertainty in this paper. Specifically, a dynamic fault tree (DFT) is developed to build a fault model to simulate dynamic fault behaviors and some reliability indices are calculated using a dynamic evidence network (DEN). Furthermore, a VIKOR method is proposed to choose the possible sensor locations based on these indices. Besides, a sensor model is introduced by using a priority AND gate (PAND) to describe the failure sequence between a sensor and a component. All placement schemes can be enumerated when the number of sensors is given, and the largest system reliability is the best alternative among the placement schemes. Finally, a case study shows that CCF has some influence on sensor placement and cannot be neglected in the reliabilitybased sensor placement.
    Źródło:
    Eksploatacja i Niezawodność; 2021, 23, 2; 253-262
    1507-2711
    Pojawia się w:
    Eksploatacja i Niezawodność
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Attitude of Children and Parents Towards Children Influencers
    Autorzy:
    Kołaszewska, Izabela
    Kacprzak, Agnieszka
    Powiązania:
    https://bibliotekanauki.pl/articles/2164647.pdf
    Data publikacji:
    2022-12-21
    Wydawca:
    Uniwersytet Warszawski. Wydawnictwo Naukowe Wydziału Zarządzania
    Tematy:
    Children infl uencers
    consumer behaviour
    tripartite model of attitude
    product
    placement
    YouTube
    TikTok
    Opis:
    The phenomenon of internet infl uencers is among the most discussed issues in marketing to children. The amount of time children spend on the internet increases every year, which increases the risk of becoming the target of infl uencer marketing. Studying the impact of infl uencers on children is of great importance not only for marketers, but also for parents responsible for upbringing their off spring. This article presents the results of a qualitative study aimed at describing three components of the attitude (cognitive, emotional and behavioural) of children and parents towards children infl uencers. The methods employed in this study are focus group interviews and individual in-depth interviews with 18 participants: children aged 8–11 and their parents. During the interviews, one sample YouTube video and two TikTok children influencer videos were presented. The analysis of cognitive aspects of attitude showed that children have a higher level of awareness of product placement in influencer video than their parents suspect. Many parents declare that they are against such content on social media, while children see nothing wrong with promotional content and believe that it is natural. As far as the emotional aspect of attitude is concerned, parents present a wider range of emotions than children, possibly because they are less familiar with such content. Being exposed to product placement in influencer videos also impacts the behavioural aspect of attitude. Children are eager to have the promoted products, but parents are sceptical about such products and declare that they buy them only for special occasions.
    Źródło:
    Journal of Marketing and Consumer Behaviour in Emerging Markets; 2022, 2(15); 4-23
    2449-6634
    Pojawia się w:
    Journal of Marketing and Consumer Behaviour in Emerging Markets
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Marketing usług logistycznych – model STP
    MARKETING OF LOGISTICS SERVICES – THE STP MODEL
    Autorzy:
    Łazorko, Katarzyna
    Nowakowska-Grunt, Joanna
    Powiązania:
    https://bibliotekanauki.pl/chapters/27177561.pdf
    Data publikacji:
    2023-04-04
    Wydawca:
    Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
    Tematy:
    CSR
    lokowanie produktu
    marketing usług logistycznych
    model STP
    pozycjonowanie
    segmentacja
    targetowanie
    employer branding
    product placement
    marketing of logistics services
    STP model
    position-
    ing
    segmentation
    targeting
    Opis:
    W rozdziale zaprezentowano model STP jako jedno z podstawowych narzędzi wykorzystywanych w działalności marketingowej i konieczny element projektowania strategii marketingowej, poprzedzający tworzenie marketingu mix. Przedstawiono poszczególne elementy modelu, charakteryzując kolejno segmentację, możliwe strategie w zakresie targetowania (wyboru rynku docelowego) oraz zaprezentowano sposoby budowania pozycji firmy logistycznej na rynku, np. poprzez działania z zakresu CSR, employer branding oraz lokowanie produktu. Rozważania teoretyczne wzbogacone zostały szeregiem przykładów z rynku logistycznego.
    The chapter presents the STP model as one of the basic tools used in marketing operations and a necessary element of marketing strategy planning, which precedes the formulation of the marketing mix. Elements of the model are presented, including segmentation, possible targeting strategies (choosing the target market) and ways to build the logistics company’s position in the market, such as CSR activities, employer branding and product placement. The theoretical discussion is supported by a number of examples from the logistics market.
    Źródło:
    Współczesne wyzwania logistyki; 111-120
    9788371939266
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Development the methods of optimum placement undirected planar objects with piecewise non-linear boundaries in the multiply area
    Autorzy:
    Chaplya, Yu.
    Sobol, O.
    Powiązania:
    https://bibliotekanauki.pl/articles/411345.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Oddział w Lublinie PAN
    Tematy:
    optimal placement
    object with piecewise linear boundary
    multiply area
    mathematical model
    branch and bound method
    method of simulated annealing
    Opis:
    In this paper the statement of the problem is formulated and the mathematical model of optimization the placement of the undirected planar geometrical objects with piecewise non-linear boundaries in the multiply area is developed. It is shown the geometrical interpretation and derived the estimate of the number of restrictions in the model. On the basis of a mathematical model for finding the global extremum of the objective function was proposed modified method of branches and boundaries. It is also shown the solutions tree that takes into account the problems of optimal placement of undirected planar geometrical object with piecewise nonlinear boundaries in the multiply area, and received the complexity of this method. For locally optimal solutions of the problem modified simulated annealing method has been developed. Thus the analytical expressions for the function of energy system were received, the function, that describes the decrease of temperature over time, function that forms a new state of system. The method of formation the new state of the system was investigated in more detail, which is based on a random permutation of numbers the pair of the objects, it is also based on a consistent placement of objects according to reshuffle their numbers and determining the probability of transition to a new state. It is shown the example of determining permissible points of placement the local coordinate system of the specific geometrical object. The conclusion is that to solve practical optimization problems of placement of the undirected planar geometrical objects with piecewise non-linear boundaries in the multiply area should be used the modified simulated annealing method.
    Źródło:
    ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes; 2016, 5, 2; 39-44
    2084-5715
    Pojawia się w:
    ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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