Browsing USN Open Archive by Author "Ghaderi, Ali"
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A Mathematical Theory for Mixing of Particulate Materials
Ghaderi, Ali (Doctoral thesis, 2006)A theoretical framework for sampling theory is developed. In this relation, concepts like mixture heterogeneity and representative samples are mathematically defined. Further, the relation between Gy's concepts of accuracy ... -
Analysing uncertainty in parameter estimation and prediction for grey-box building thermal behaviour models
Brastein, O.M.; Ghaderi, Ali; Pfeiffer, Carlos; Skeie, Nils-Olav (Peer reviewed; Journal article, 2020)The potential reduction in energy consumption for space heating in buildings realised by the use of predictive control systems directly depends on the prediction accuracy of the building thermal behaviour model. Hence, ... -
Diagnostisk testing
Seljord, Kristine Bakken; Rief, Betul (Master thesis, 2024)Denne masteroppgaven undersøker presisjonen til en skriftlig diagnostisk test. For å gjøre dette vil vi se på presisjonen til hver oppgave separat før vi ser på presisjonen til oppgavene i sammenheng. Målet med dette er å ... -
En kvantitativ undersøkelse av sammenhengen mellom misoppfatninger og helhetlig matematisk kompetanse
Krogstad, Markus Noah; Jokerud, Eirik (Master thesis, 2023)Masteroppgaven tar for seg sammenhengen mellom elevers prestasjoner på en diagnostisk test i brøk og elevers prestasjoner på standardiserte kartleggingsprøver. Problemstillingen er “hvilke sammenhenger kan vi finne mellom ... -
Kvantitativ analyse av misoppfatninger knyttet til brøk i tiende trinn
Iversen, Martin Løvbakk; Rosland, Birthe Amanda Kanutte (Master thesis, 2022)Denne studien dreier seg om misoppfatninger i temaet brøk blant elever på tiende trinn, og har som hensikt å forsøke å avdekke hvilke konsekvenser disse misoppfatningene kan ha for elevenes matematiske kompetanse og om man ... -
Markov Chain Monte Carlo Methods Applied to a Synchronous Generator Model
Jayamanne, Kushila Rasanduni; Ban, Zhe; Pandey, Madhusudhan; Ghaderi, Ali; Lie, Bernt (Peer reviewed; Journal article, 2023)Markov Chain Monte Carlo (MCMC) approaches are widely used for tuning model parameters to fit process measurements. While modern probabilistic programming languages (PPLs) such as Stan, PyMC, and Turing have made it easier ... -
Modeling and Analysis of Fluid Flow through A Non-Prismatic Open Channel with Application to Drilling
Jinasena, Asanthi; Ghaderi, Ali; Sharma, Roshan (Journal article; Peer reviewed, 2018)This paper presents the development and validation of a simplified dynamic model of a Venturi channel. The existing dynamic models on open channels are based on the open channel flow principles, which are the shallow water ... -
Modelling and Simulation of Detection Rates of Emergent Behaviours in System Integration Test Regimes
Haugen, Rune André; Ghaderi, Ali (Peer reviewed; Journal article, 2021)System level testing generally lacks coverage due to cost of performing realistic tests on the “system as a whole”. This lack in test coverage gives rise to seemingly emergent aviour at system level. The interactions between ... -
On Uncertainty Analysis of the Rate Controlled Production (RCP) Model
Hosnaroudi, Soheila Taghavi; Ghaderi, Ali (Peer reviewed; Journal article, 2021)Rate controlled production (RCP) model is used to simulate and investigate the performance of the oil wells which are completed by autonomous inflow control devices. In order to quantify the performance of the RCP model, ... -
Parameter Estimation for a Gas Lifting Oil Well Model Using Bayes' Rule and the Metropolis–Hastings Algorithm
Ban, Zhe; Ghaderi, Ali; Janatian, Nima; Pfeiffer, Carlos (Peer reviewed; Journal article, 2022)Oil well models are frequently used in the oil production process. Estimation of unknown parameters of these models has long been a question of great interest in the oil industry field. Data collected from an oil well ...