Temat: decision modelling - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Model based decision support system of operating settings for MMAT nozzles
Autorzy:: Fritz, B.K.
Czaczyk, Z.
Hoffmann, W.C.
Powiązania:: https://bibliotekanauki.pl/articles/65707.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: droplet size
classification
determination
spraying
modelling
sprayer operating setting
decision support system
Opis:: Droplet size, which is affected by nozzle type, nozzle setups and operation, and spray solution, is one of the most critical factors influencing spray performance, environment pollution, food safety, and must be considered as part of any application scenario. Characterizing spray nozzles can be a timely and expensive proposition if the entire operational space (all combinations of spray pressure and orifice size, what influence flow rate) is to be evaluated. This research proposes a structured, experimental design that allows for the development of computational models for droplet size based on any combination of a nozzle’s potential operational settings. The developed droplet size determination model can be used as Decision Support System (DSS) for precise selection of sprayer working parameters to adapt to local field scenarios. Five nozzle types (designs) were evaluated across their complete range of orifice size (flow rate*) and spray pressures using a response surface experimental design. Several of the models showed high level fits of the modeled to the measured data while several did not as a result of the lack of significant effect from either orifice size (flow rate*) or spray pressure. The computational models were integrated into a spreadsheet based user interface for ease of use. The proposed experimental design provides for efficient nozzle evaluations and development of computational models that allow for the determination of droplet size spectrum and spraying classification for any combination of a given nozzle’s operating settings. The proposed DSS will allow for the ready assessment and modification of a sprayers performance based on the operational settings, to ensure the application is made following recommendations in plant protection products (PPP) labels.
Źródło:: Journal of Plant Protection Research; 2016, 56, 2
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 2.

Tytuł:: Decision making strategies for warehouse operations
Autorzy:: Kłodawski, M.
Lewczuk, K.
Jacyna-Gołda, I.
Żak, J.
Powiązania:: https://bibliotekanauki.pl/articles/224012.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: warehousing
warehouse strategy
modelling
decision making
składowanie
strategia magazynowania
modelowanie
podejmowanie decyzji
Opis:: The paper presents issues related to design and organization of warehouse processes. Draws attention to problems of modelling logistics facilities and processes occurring in them. Paper also points out the essence of correct operation of warehouses and associated with this risks for supply chain. Warehouse processes have been properly defined and divided into smaller components, like: phases of process, activities, sets of procedures, procedures or working movements. Paper presents various possible configurations of warehouse processes, which were named as warehouse strategies. Warehouse process strategy is a part of warehousing. It determines the sequence of warehouse operations. These operations are related to internal transport, cargo form transformation and cargo buffering. In paper it is noted that the warehouse strategy depends on the several technical and organizational factors and is associated with a certain probability. This probability can be estimated based on data analysis concerning logistics processes in the specified warehouse facility. As shown in case study, appropriate selection of warehouse strategies determines possibility of fulfilling customer order in time and costs that are acceptable for him.
Źródło:: Archives of Transport; 2017, 41, 1; 43-53
0866-9546
2300-8830
Pojawia się w:: Archives of Transport
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 3.

Tytuł:: Minimization of Ventilator-Induced Lung Injury in ARDS Patients – Part I: Complex Model of Mechanically Ventilated ARDS Lungs
Autorzy:: Glapiński, J.
Jabłoński, I.
Powiązania:: https://bibliotekanauki.pl/articles/221252.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: lung alveolar surfactant
respiratory mechanics
mathematical modelling
medical decision support
lung protective ventilation
Opis:: A complex model of mechanically ventilated ARDS lungs is proposed in the paper. This analogue is based on a combination of four components that describe breathing mechanics: morphology, mechanical properties of surfactant, tissue and chest wall characteristics. Physical-mathematical formulas attained from experimental data have been translated into their electrical equivalents and implemented in MultiSim software. To examine the adequacy of the forward model to the properties and behaviour of mechanically ventilated lungs in patients with ARDS symptoms, several computer simulations have been performed and reported in the paper. Inhomogeneous characteristics observed in the physical properties of ARDS lungs were mapped in a multi-lobe model and the measured outputs were compared with the data from physiological reports. In this way clinicians and scientists can obtain the knowledge on the moment of airway zone reopening/closure expressed as a function of pressure, volume or even time. In the paper, these trends were assessed for inhomogeneous distributions (proper for ARDS) of surfactant properties and airway geometry in consecutive lung lobes. The proposed model enables monitoring of temporal alveolar dynamics in successive lobes as well as those occurring at a higher level of lung structure organization, i.e. in a point P₀ which can be used for collection of respiratory data during indirect management of recruitment/de-recruitment processes in ARDS lungs. The complex model and synthetic data generated for various parametrization scenarios make possible prospective studies on designing an indirect mode of alveolar zone management, i.e. with a minimized risk of repeated alveolar recruitment/de-recruitment and mechanical overstraining of lung tissues.
Źródło:: Metrology and Measurement Systems; 2017, 24, 4; 685-699
0860-8229
Pojawia się w:: Metrology and Measurement Systems
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 4.

Tytuł:: Jednostronne podejmowanie decyzji w rodzinie. Analiza uwarunkowań metodą równań strukturalnych
Unilateral Decision-making in the Family. Structural Equation Model of its Determinants
Autorzy:: Czaderny, Krzysztof
Powiązania:: https://bibliotekanauki.pl/articles/428029.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: podejmowanie decyzji
rodzina
przemoc ekonomiczna
modelowanie równań strukturalnych
SEM
decision-making
family
economic violence
structural equation modelling
Opis:: Przedmiotem zainteresowania badaczy ilościowych są najczęściej zależności między pojedynczymi zmiennymi pomiarowymi. W niniejszym artykule zaprezentowano alternatywne podejście – modelowanie równań strukturalnych (SEM) techniką ważonych najmniejszych kwadratów ze skorygowaną średnią i wariancją (WLSMV). Umożliwia ono badanie zależności między bateriami zmiennych (konstruktami teoretycznymi), włączając zmienne kategorialne. Analizie poddano wyniki badania przeprowadzonego w 2015 roku, koncentrując się na określeniu determinant samodzielnego podejmowania decyzji w gospodarstwie domowym. Zbadano, jak stosunek emocjonalny do pracy zawodowej, pozycja tamże, siła charakteru, proaktywna postawa wobec otoczenia oraz waga wyglądu zewnętrznego wpływają na chęć samodzielnego podejmowania decyzji w gospodarstwie domowym. Analizę przeprowadzono również w podziale na dwa obszary decyzyjne: finansowy i pozafinansowy.
Relationships between separate variable are the common subject to quantitative researchers. In this article an alternative approach is demonstrated: structural equation modelling (SEM) by weighted least squares means and variance adjusted estimation (WLSMV), which makes possible to assess relationships between batteries of variables (theoretical constructs), including categorical ones. Analysis is based on the results of a research carried out in 2015 and the focus is put on determinants of unilateral decision-making in the household. The study examines the way factors, such as: mental attitude towards work, position at work, strength of character, open attitude towards others, importance of own appearance, affect willingness to making decisions in the household. Analysis is also performed for financial and non-financial decisive areas separately.
Źródło:: Studia Socjologiczne; 2017, 3(226); 155-173
0039-3371
Pojawia się w:: Studia Socjologiczne
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 5.

Tytuł:: Links between freight trip generation rates, accessibility and socio-demographic variables in urban zones
Autorzy:: Gonzalez-Feliu, Jesus
Palacios-Argüello, Laura
Suarez-Nanez, Carlos
Powiązania:: https://bibliotekanauki.pl/articles/223656.pdf
Data publikacji:: 2020
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: urban goods transport
transport modelling
city logistics
land use
FTG
accessibility
decision support
transport miejski
transport towarów
modelowanie transportu
logistyka miejska
zagospodarowanie terenu
wspomaganie decyzji
Opis:: This paper proposes an assessment of the links between freight trip generation (FTG) rates and accessibility. First, the paper overviews the background, sets the context and motivates the research. Second, it presents the proposed methodology, which combines an FTG model, two accessibility indicators and a linear regression analysis to assess the relationships between freight trip demand and a set of socio-demographic variables including accessibility. The FTG modelling framework, adapted from previous works, allows estimating the number of freight trips with a small amount of standard data, even when no surveyed data is available. The two gravity accessibility indexes, one potential and one exponential, are defined in the continuity of recent freight accessibility works. To those indicators, a set of socio-demographic variables, including population, area or a zone (or density), are introduced. The relationships between FTG and all those variables are assessed via standard linear regression methods completed by the verification of the corresponding linear relationship hypotheses. Third, the framework is applied to the urban area of Lyon (France), where no urban goods survey data is available. Results show that potential accessibility seems to have a better correlation to FTG and could be a good decision support indicator when combined with the population as an explanatory variable. The population can be added to accessibility as an explanatory variable, the resulting models with two variables have a slightly lower accuracy but remains close to that of models with only accessibility as an explanatory variable. This work remains exploratory and finishes by proposing practical implications and further development lines.
Źródło:: Archives of Transport; 2020, 53, 1; 7-20
0866-9546
2300-8830
Pojawia się w:: Archives of Transport
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Informacja

Wyszukujesz frazę "decision modelling" wg kryterium: Temat

Źródło danych

Dostawca treści

Kolekcja

Rok wydania

Wydawca

Temat

Autor

Typ dokumentu

Język