Achieving Long-Term Value of Enterprise Models - A Case Study

In today's increasingly agile business world, enterprises must take extensive measures in order to stay competitive. Over the last 20 years, enterprise modelling has become a common technique for managing the vast amounts of information and business knowledge that emerges within an organisation. Enterprise models are meant to be used and evolved over a long period of time. In order to have the wanted effect, such models must be properly managed and have the right quality. Statoil, Norway's largest oil and gas company started using enterprise models as a part of their corporate management system ten years ago. In their experience, the introduction of enterprise models has had positive effects on operations, but evaluations have shown that there is still room for improvement. In this report, a case study focusing on the relationship between the quality of the Statoil enterprise model and its use is described. SEQUAL, a framework for evaluating model quality has been applied throughout the study in order to analyse the various aspects of the enterprise model. The results show that the management system is extensively used in most parts of the company and that company standards and documented best practices enforce high quality on several levels. However, there is still a gap between the level of quality prescribed and what is being achieved in practice. Managing this gap through continuous improvements is crucial for the continued success of using enterprise models in Statoil

The Effect of the Nuclear Charge Distribution on the Hyperfine Anomaly in Mercury

En parameterstudie av Breit-Rosenthal-korreksjonen mellom 199Hg og andre isotoper ble gjort for tilstandene 6s6p 3P1 og 3P2 med parameteren δ(differanse i gjennomsnittelig kvadrat av radius for distribusjon av kjerneladning) i intervallet [-1fm^2,1fm^2]. Bølgefunksjonene til electronene ble beregnet med metoden multi-configuration Dirac-Hartree-Fock ved å bruke General Relativistic Atomic Structure Package 2018 hvor en to-parameter Fermi-modell ble brukt for distribusjonen av kjerneladning. En lineær tilpassning Cδ ble gjort med resultatene. Faktoren C forandret seg med ca. 1% når en stor konfigurasjonsekspansjon ble brukt sammenlikned med den minimale ekspansjonen. Verdien på kjernens hudtykkelse hadd veldig liten betydning for C. C ble beregnet til -0.1113 %/fm^2 for 3P1 og -0.1164 %/fm^2 for 3P2.A parametric study of the Breit-Rosenthal correction between 199Hg and other isotopes was done for the states 6s6p 3P1 and 3P2 with the parameter δ(difference in mean squared radius of nuclear charge distribution) in the range [-1fm2,1fm2]. The electronic wave functions were calculated with the multi-configuration Dirac-Hartree-Fock method using the General Relativistic Atomic Structure Package 2018 where a two-parameter Fermi model was used for the nuclear charge distribution. A linear fit Cδ was made with the results. The factor C was found to differ by approximately 1% when a large expansion of configurations was used compared with the minimal expansion. The value of the nuclear skin thickness was found to have very little impact on C. C was found to be -0.1113 %/fm^2 for 3P1 and -0.1164 %/fm^2 for 3P2

Enzymatic Degradation of Chitosans: - A study of the mode of action of selected chitinases and chitosanases

PhD i bioteknologiPhD in Biotechnolog

Selgers opplysningsplikt ved avhendelse av fast eiendom

Selgers opplysningsplikt ved avhendelse av fast eiendo

Kartlegging av Oppsalgrotta i Gildeskål, Nordland

Masteroppgave i geografiGEO350MASV-MEHAMPGEOGRMASV-GEOGMASV-PHY

Nødvendighetskravet i plan- og bygningsloven § 12-7 nr. 10

MasteroppgaveJUS399MAJURMAJUR-

Numerical Investigation of Reheat Hydrogen Flames in the Sequential-Combustion Stage of a Heavy-Duty Gas Turbine

Recent theoretical studies and experimental evidence suggest that turbulent burning-rate augmentation, flame instabilities and NOx emissions, notoriously characterizing fuel-lean hydrogen premixed combustion, are significantly mitigated at reheat combustion conditions. This is due to the favorable effects of high reactants temperature in reducing the strength of thermo-diffusive instabilities that occur in hydrogen premixed combustion with augmented severity for increasing pressure and flame temperature. In this context, Ansaldo’s Constant Pressure Sequential Combustion (CPSC) system appears as an attractive approach to enable hydrogen firing of gas turbines that target high flame temperatures to retain high cycle efficiency. The present numerical modelling effort represents the first attempt to perform high-resolution Large-Eddy Simulation (LES), featuring detailed chemical kinetics and a fully compressible representation of the reactive flow, of hydrogen reheat combustion in a full-scale industrial combustor geometry with realistic geometrical features. Building upon earlier numerical modelling efforts that were limited to generic and geometrically simplified configurations with idealized reactants mixing conditions (GT2022-83218) [1], the ability of the turbulent combustion model to predict injection of the hydrogen fuel, mixing with the vitiated oxidizer stream and spontaneous ignition of the reactants mixture at the expected stabilization location is verified. Low and high flame-temperature conditions for 100% hydrogen-firing of the engine are simulated confirming that the numerical results are in accordance with the expected flame stabilization behavior observed in test-rig experiments. Furthermore, an analysis of the hydrogen premixed flame structure at reheat combustion conditions is provided highlighting the differences observed at various locations within the combustion chamber.Numerical Investigation of Reheat Hydrogen Flames in the Sequential-Combustion Stage of a Heavy-Duty Gas TurbinepublishedVersio

An audit of patients admitted to hospital in Nepal for COPD exacerbation

Objectives: Chronic obstructive pulmonary disease is a large and increasing problem in low- and middle-income countries; Nepal is no exception. We aimed to obtain information on patient characteristics and the level of care provided to patients admitted for acute exacerbation of chronic obstructive pulmonary disease in two Nepalese hospitals and to compare the given care with the Global Initiative for Chronic Obstructive Lung Disease guidelines. Methods: This was a cross-sectional, observational, descriptive study. All patients admitted to two Nepalese hospitals due to acute exacerbation of chronic obstructive pulmonary disease between 18 February and 5 April 2019 were asked to participate. Results: In total, 108 patients with a median age of 70 years participated. Fifty-three (42.7%) were male, 80 (74.8%) were former smokers, and 46 (45.1%) were farmers. Using the Global Initiative for Chronic Obstructive Lung Disease A-D classification, 97 (90.6%) of the patients were classified in group D. All the patients received supplementary oxygen treatment and 103 (95.4%) were treated with short-acting beta2 agonists. A total of 105 (97.2%) patients received antibiotics, and 80 (74.5%) received systemic corticosteroids. The majority was discharged with triple therapy including long-acting muscarinic antagonist, long-acting beta2 agonist, and inhaled corticosteroids, and 72 (75.8%) were discharged with long-term oxygen treatment. Conclusion: All elements of the Global Initiative for Chronic Obstructive Lung Disease guidelines were applied. However, due to a lack of information, it cannot be concluded whether the treatment was provided on the correct indications. The average patient received almost all the treatment alternatives available. This might indicate a very sick population or over-treatment.publishedVersio

Cellulose nanofibrils as rheology modifier in mayonnaise – A pilot scale demonstration

The applicability of cellulose nanofibrils (CNFs) as viscosifying agent in a starch-reduced low-fat mayonnaise and in an oil-reduced full-fat mayonnaise has been considered. For low-fat mayonnaise a 50 wt% reduction in the ordinary starch content was performed, while for full-fat mayonnaise, the oil content was reduced from 79 to 70 wt%. To study if the stability was affected when CNFs were added, analyses as visual and accelerated stability tests, droplet size measurements and rheology studies, determining the shear viscosity, and the loss and storage moduli, were conducted after 1 day, 1 week and 1 month of storage in room temperature. Even though changes in droplet size distributions and rheological properties indicated some coalescence, the visual stability was not changed after 1 month of storage for any of the samples. The decrease in viscosity and moduli inflicted by reduction of starch or fat, could be regained by the addition of CNFs at 0.75 wt % and 0.42 wt %, respectively. Based on the results in this work, mayonnaise with reduced starch or fat content can be produced when CNFs are used as a viscosifying agent.acceptedVersion"© 2020. This is the authors’ accepted and refereed manuscript to the article. Locked until 9.6.2022 due to copyright restrictions. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/

WCM-modell for kraftprodusenter

publishedVersio