Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "validation model" wg kryterium: Temat

  Lista filtrów
Wyrównaj
Wyświetlanie 1-15 z 22
Tytuł:
Validation of the metrological model of coordinate measuring arm using multifeature check
Autorzy:
Gromczak, K.
Ostrowska, K.
Owczarek, D.
Sładek, J.
Powiązania:
https://bibliotekanauki.pl/articles/957962.pdf
Data publikacji:
2015
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
validation
metrological model
coordinate measuring arms
Opis:
The article presents the validation research scheme of metrological model of coordinate measuring arm (CMA) using multifeature check. The scheme shows the comparison of the calibration results of the check using selected coordinate methods and criteria of validation. The comparison shows the insignificance of differences between the obtained results of both: metrological model of CMA and multi-position method. It evidently proves the correctness of the development of metrological model of CMA. The use of appropriate quality multifeature check also had a significant impact on the results. This check is now the most accurate measurement length check and its use for this validation process was the most suitable.
Źródło:
Advances in Science and Technology. Research Journal; 2015, 9, 28; 120-124
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Environmental influences on propagation of explosive wave on the dynamic response of plate
Autorzy:
Barnat, W.
Powiązania:
https://bibliotekanauki.pl/articles/199820.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
improvised explosive device
numerical model
validation
Opis:
The purpose of this article is to present the influence of the environment on the propagation of a shock wave and the dynamic response of the plate load by a shock wave. In the course of research in this field an experimental study was performed. An experimental study concerns the test plate loaded by a shock wave, formed after the detonation of an explosive device with equivalent weighing of TNT equal to 1 kg. During numerical investigations environmental impacts have been tested on the dynamic response disc. The considered environments of explosions were air water and soil. A model of the phenomenon has been prepared using commercial software MSC DYTRAN.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2014, 62, 3; 423-429
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Experimental investigation of selected explosion parameters for numerical model
Autorzy:
Barnat, W.
Gieleta, R.
Niezgoda, T.
Powiązania:
https://bibliotekanauki.pl/articles/241757.pdf
Data publikacji:
2012
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
IED
improvised explosive device
numerical model
validation
Opis:
The aim of presented work is examination of blast wave, especially incident and reflected wave pressure. Due to many difficulties and complexity of phenomenon a complete study for different charges should be done. In presented paper two cylindrical TNT charges were used, weighting respectively 100 g and 200 g. Pressure wave was examined using original test stand designed and developed on Department of Mechanics and Applied Computer Science. A test steel test plate with 5 mm thickness was equipped with pressure gauge to measure reflected wave. Additionally, the plate was placed on four special electroresistance strain gauges...To measure force Vishay EA-06-120-060LZ strain gauges were used. For amplification of the dynamometers with strain gauges, MS1001 INFEL bridge was used. The system was used to validate the results from reflected wave pressure gauge. Shock wave pressures was measured using a special sensor model 137A21 amd M350B21 made by PCB Piezotronics At specific distance there was also incident wave pressure gauge. In order to fully examine the dynamic response of the plate an accelerometer was used. As a result, pressure versus time and acceleration versus time plots were obtained. The results will be used to validate numerical model of blast wave impact on a plate.
Źródło:
Journal of KONES; 2012, 19, 4; 9-13
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Numerical simulations of hydrodynamic open-water characteristics of a ship propeller
Autorzy:
Felicjancik, J.
Kowalczyk, S.
Felicjancik, K.
Kawecki, K.
Powiązania:
https://bibliotekanauki.pl/articles/258544.pdf
Data publikacji:
2016
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
CFD
model tests
POW Test
propeller
validation
Opis:
The paper presents the results of numerical simulations of ship propeller operation bearing the name of Propeller Open Water (POW) Tests. The object of tests was a sample ship propeller (PPTC1), the geometrical and kinematic data of which are available, along with the results of model tests, on the official page of the research centre involved in the measurements. The research aimed at verifying the correctness of results of numerical simulations performed in the model and real scale. The results of numerical analyses performed in the model scale were confronted with those measured in the experiment. Then, making use of dimensionless coefficients which characterise propeller’s operation, the recorded model data were extrapolated to real conditions and compared with corresponding results of simulations. Both the numerical simulations and the experimental research were performed for the same propeller load states. The reported research is in line with other activities which aim at developing advanced numerical methods to.
Źródło:
Polish Maritime Research; 2016, 4; 16-22
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Validation of the FEM model of the Mi-24 tail boom and vertical stabilizer
Autorzy:
Reymer, P.
Powiązania:
https://bibliotekanauki.pl/articles/242236.pdf
Data publikacji:
2011
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
finite element method
Mi-24 helicopter numerical model
validation
Opis:
The scope of this work was the validation process of the numerical model of the Mi-24 helicopter tail boom and vertical stabilizer. In order to obtain a detailed geometry of the actual structure the sophisticated reversed engineering techniques were used. The measurement was performed using two separate techniques: one based on digitalphotogrammetry and other based on a three dimensional laser scanning with ATOSIII scanner. The numerical model was created with use of the obtained geometry, available technical documentation and detailed inspection of the structure. The obtained FEM model was validated using strain measurements of the real structure during characteristic flight maneuvers. A system of foil strain gauges was installed on the tail boom in previously selected locations. Calibration process, using known loads, was performed in order to determine response of the measurement system. To enable a quick and reasonable comparison of results from the experiment and calculations a special element was introduced in the FEM model. Their task was to monitor local strains in places corresponding to those where the strain gauges were installed. Detailed analysis of results confirmed, that after some minor modifications, the developed finite element model represents the actual structure reasonably well. Particular attention was paid to the representation of the boundary conditions and how to implement loads, which can significantly affect the obtained results. The analysis carried through confirms, that the presented validation technique, based on strain measurements, allows verifying a complicated numerical model in a relative cheap, fast and reliable way.
Źródło:
Journal of KONES; 2011, 18, 2; 369-376
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Validation of the hydrodynamic part of the ecohydrodynamic model for the Southern Baltic
Autorzy:
Jedrasik, J.
Powiązania:
https://bibliotekanauki.pl/articles/48134.pdf
Data publikacji:
2005
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
fluctuation
water temperature
hydrodynamic model
validation
sea level
ecohydrodynamic model
salinity
Baltic Sea
Opis:
The first part of the Baltic Sea ecohydrodynamic model, based on the Princeton Ocean Model (POM), was validated by long-term observations of sea level, salinity and water temperature fluctuations. The modelled sea surface temperature (SST) fields were also compared to satellite images – satisfactory correlation coefficients were obtained. The model bias and efficiency coefficients of the modelled variables in relation to the observed values were determined. The quality of model simulations in relation to measured values was estimated with respect to spatial and seasonal variability in shallow and deep coastal waters as well as in the open sea. The results indicated the high quality of simulations by the hydrodynamic model.
Źródło:
Oceanologia; 2005, 47, 4
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Numerical modelling of ozonation process with respect to bromate formation. Part II – Model validation
Autorzy:
Olsińska, Urszula
Powiązania:
https://bibliotekanauki.pl/articles/185018.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
model
ozonation
bromate
hydrodynamics
kinetics
validation
ozonowanie
hydrodynamika
kinetyka
uprawomocnienie
Opis:
Validation results of a theoretical model that describes the formation of bromate during ozonation of bromide-containing natural waters are presented. An axial dispersion model integrating the nonideal mixing, mass-transfer and a kinetic model that links ozone decomposition reactions from the Tomiyasu, Fukutomi and Gordon ozone decay model with direct and indirect bromide oxidation reactions, oxidation of natural organic matter and reactions of dissolved organics and aqueous bromine was verified. The model was successfully validated with results obtained both at a laboratory and a full scale. Its applicability to different water supply systems was approved.
Źródło:
Chemical and Process Engineering; 2019, 40, 1; 39-47
0208-6425
2300-1925
Pojawia się w:
Chemical and Process Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Towards ensuring software interoperability between deep learning frameworks
Autorzy:
Lee, Youn Kyu
Park, Seong Hee
Lim, Min Young
Lee, Soo-Hyun
Jeong, Jongwook
Powiązania:
https://bibliotekanauki.pl/articles/23944833.pdf
Data publikacji:
2023
Wydawca:
Społeczna Akademia Nauk w Łodzi. Polskie Towarzystwo Sieci Neuronowych
Tematy:
deep learning
interoperability
validation
verification
deep learning framework
model conversion
Opis:
With the widespread of systems incorporating multiple deep learning models, ensuring interoperability between target models has become essential. However, due to the unreliable performance of existing model conversion solutions, it is still challenging to ensure interoperability between the models developed on different deep learning frameworks. In this paper, we propose a systematic method for verifying interoperability between pre- and post-conversion deep learning models based on the validation and verification approach. Our proposed method ensures interoperability by conducting a series of systematic verifications from multiple perspectives. The case study confirmed that our method successfully discovered the interoperability issues that have been reported in deep learning model conversions.
Źródło:
Journal of Artificial Intelligence and Soft Computing Research; 2023, 13, 4; 215--228
2083-2567
2449-6499
Pojawia się w:
Journal of Artificial Intelligence and Soft Computing Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A mathematical method for modeling the shape of apples. Part 2. Calculation and validation of results
Autorzy:
Mieszkalski, L.
Wojdalski, J.
Powiązania:
https://bibliotekanauki.pl/articles/410975.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Oddział w Lublinie PAN
Tematy:
apple
cv. Ligol
locule
pericarp
shape
3D model
validation
Opis:
The aim of the study was to propose a mathematical method for modeling the shape of apples cv. Ligol and their anatomical parts, the locule and the pericarp, with the use of Bézier curves. The method developed in part 1 of the study was used to generate 3D models describing the shape of an apple, the locule and the pericarp. The main projection planes of the apple, locule and pericarp were compared with their corresponding models to reveal that the proposed method supports modeling of geometric solids with sufficient accuracy for practical applications.
Źródło:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes; 2017, 6, 3; 105-109
2084-5715
Pojawia się w:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
NegFry - decision support system for late blight control in potato crops - results of validation trials in North Poland
Autorzy:
Kapsa, J.
Osowski, J.
Bernat, E.
Powiązania:
https://bibliotekanauki.pl/articles/65119.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
late blight control
Polska
NegFry model
validation
decision support
potato
Źródło:
Journal of Plant Protection Research; 2003, 43, 2
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Walidacja Kwestionariusza Kultury Organizacyjnej Harrisona i Handy w warunkach polskich
Autorzy:
Wudarzewski, Grzegorz
Powiązania:
https://bibliotekanauki.pl/articles/610610.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
model of organizational culture
organizational culture questionnaire
validation
model kultury organizacyjnej
kwestionariusz kultury organizacyjnej
walidacja
Opis:
The publication contains description and results validation procedure of Harrison and Handy Organizational Culture Questionnaire to Polish conditions. Validation research were realized on sample N=320 while normalization on sample N=1133. First part of the article presents basic assumptions about organizational culture model and typology. Further parts of the publication contain a validation results, including accuracy, reliability, power of discrimination and normalization with creating percentile norms. The obtained results have appropriate psychometric parameters conditions of Polish organizations.
Opracowanie zawiera opis i zestawienie wyników procedury walidacji Kwestionariusza Kultury Organizacyjnej Harrisona i Handy w warunkach polskich. Badania walidacyjne przeprowadzono na próbie N=320, natomiast normalizacyjne – na próbie N=1132. Artykuł zawiera podstawowe założenia dotyczące modelu kultury organizacyjnej i jej typów. Dalsze części obejmują rezultaty walidacji w zakresie trafności, rzetelności, mocy dyskryminacyjnej oraz wypracowania norm percentylowych. Uzyskane rezultaty posiadają zadowalające parametry psychometryczne względem sytuacji i warunków polskich organizacji.
Źródło:
Annales Universitatis Mariae Curie-Skłodowska, sectio H – Oeconomia; 2018, 52, 1
0459-9586
Pojawia się w:
Annales Universitatis Mariae Curie-Skłodowska, sectio H – Oeconomia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ecohydrodynamic model of the Baltic Sea. Part 2. Validation of the model
Autorzy:
Jedrasik, J.
Szymelfenig, M.
Powiązania:
https://bibliotekanauki.pl/articles/47717.pdf
Data publikacji:
2005
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
organic matter
production
nutrient
destruction
mineralization
validation
ProDeMo model
ecohydrodynamic model
Baltic Sea
algal bloom
Opis:
The ecohydrodynamic model for the Baltic Sea consists of two interacting parts: one describes the hydrodynamics of the water (3HD), the other organic matter production and destruction (ProDeMo).The results of the simulation were validated.The modelled processes were compared with direct observations, which demonstrated the recurrence of cycles, from the spring diatom blooms through the summer depletion of nutrient salts and algal blooms, to autumn blooms of diatoms and the subsequent destruction of organic matter, and intensified mineralisation of detritus in winter.Ca libration yielded a set of coefficients complementing the algorithm of equations describing the production and destruction of organic matter in the coastal zone.V erification of the model has demonstrated that in multi-year simulations it is stable and also that it follows the laws of conservation of mass and energy.T he third procedural stage of the model investigation was validation, in which statistical measures in the form of bias, correlation coefficients and effectiveness between simulations and observations not used in calibration describe the quality of ecohydrodynamic modelling in southern Baltic Sea waters.
Źródło:
Oceanologia; 2005, 47, 4
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Walidacja modeli numerycznych nawierzchni drogowej podatnej z użyciem elementów nieskończonych
Validation of numerical model of flexible pavement structure using infinite elements
Autorzy:
Tutka, P.
Nagórski, R.
Powiązania:
https://bibliotekanauki.pl/articles/313546.pdf
Data publikacji:
2016
Wydawca:
Instytut Naukowo-Wydawniczy "SPATIUM"
Tematy:
walidacja
model numeryczny
MES
nawierzchnia drogowa
elementy nieskończone
validation
numerical model
road surface
pavement structure
infinite elements
Opis:
Celem pracy jest zbudowanie modelu numerycznego MES nawierzchni drogowej podatnej przy zastosowaniu tzw. elementów nieskończonych. Istnienie takiego modelu jest bardzo przydatne dla przeprowadzania, między innymi, obliczeń nawierzchni drogowej przy uwzględnieniu efektów dynamicznych. Pozwala to, na przykład, uniknąć efektów odbicia fali występujących w ograniczonym obszarze modelu nawierzchni. W tej pracy walidacja została przeprowadzona przez porównanie wyników obliczeń numerycznych dla analizy statycznej z wykorzystaniem elementów nieskończonych z wynikami z programu analizy statycznej i quasi-statycznej VEROAD. Porównanie to pozwala dobrać wymiary modelowanego obszaru tak, aby uzyskać zgodność wyników numerycznych z wynikami analitycznymi (VEROAD).
The main purpose of the paper is to create a numerical model of flexible pavement using infinite elements. Such a model is essential to compute calculation including dynamic effects. It is used to avoid a specific problem of the wave reflection in the FE model. Validation of numerical model with use of infinite elements is the main subject of the paper. It is carried out by comparison numerical results with results of computation from VEROAD program (analytical solution). Such type of analysis leads to obtain size of domain for FEM modeling for which result from both calculations are identical.
Źródło:
Autobusy : technika, eksploatacja, systemy transportowe; 2016, 17, 12; 1400-1404
1509-5878
2450-7725
Pojawia się w:
Autobusy : technika, eksploatacja, systemy transportowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Calibration and validation of a macroscopic traffic flow model based on platoon dispersion and queue propagation
Autorzy:
Storani, Facundo
di Pace, Roberta
de Luca, Stefano
Memoli, Silvio
Powiązania:
https://bibliotekanauki.pl/articles/2173484.pdf
Data publikacji:
2022
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
network signal setting design
cell transmission model
platoon
dispersion model
calibration
validation
projekt ustawienia sygnału sieciowego
model transmisji komórki
pluton
model rozproszenia
kalibracja
walidacja
Opis:
This paper proposes a preliminary calibration and validation of a macroscopic traffic flow model for signalised junctions. In fact, on the network signal setting design problem, a reliable modelling approach must be adopted to acknowledge the traffic flow effects, considering two phenomena: queue dispersion and spillback. The proposed model is an extension of the space-time discrete Cell Transmission Model (CTM), which can simulate dispersion and horizontal queue. This preliminary calibration and validation use real-world data collected on an arterial of the city of Salerno (south of Italy). Results showed that the estimated parameters are consistent with the literature.
Źródło:
Zeszyty Naukowe. Transport / Politechnika Śląska; 2022, 114; 155--167
0209-3324
2450-1549
Pojawia się w:
Zeszyty Naukowe. Transport / Politechnika Śląska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The influence of the Hel upwelling (Baltic Sea) on nutrient concentrations and primary production - the results of an ecohydrodynamic model
Autorzy:
Kowalewski, M.
Powiązania:
https://bibliotekanauki.pl/articles/49109.pdf
Data publikacji:
2005
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
primary production
nutrient concentration
phytoplankton biomass
ecohydrodynamic modelling
upwelling
validation
ProDeMo model
Baltic Sea
Gdansk Gulf
Opis:
An ecohydrodynamic model was used to investigate the effect of the Hel upwelling on nutrient concentrations, primary production and phytoplankton biomass. The model covered the whole Baltic Sea with a 5 NM grid spacing and the Gulf of Gdańskwith a 1 NM grid spacing. Validation indicated good agreement between model results and measurements in the GdańskD eep, and slightly weaker concord for the Hel upwelling area. The vertical nutrient fluxes associated with up- and downwelling in the Hel region were simulated for two 30-day periods in 2000. The nutrient input resulting from long-term upwelling is comparable to the load carried into the Gulf of Gdańskb y the Vistula (Wisła), the largest river in the vicinity. Performed at times when upwelling was almost permanent, the simulations showed elevated nutrient concentrations in surface waters. This was especially distinct in spring when primary production and phytoplankton biomass were both higher. In late summer, however, upwelling caused primary production to decrease, despite the elevated nutrient levels.
Źródło:
Oceanologia; 2005, 47, 4
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 22

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies