Fakultet for naturvitenskap og teknologi: Nye registreringer
Viser treff 1621-1640 av 5304
-
AktiMotBot: A social media chatbot with activity tracker integration for motivating increased physical activity
(Mastergradsoppgave; Master thesis, 2022-05-27)The World Health Organization has reported that more than 80% of the world’s adolescent population is insufficiently physically active [1]. Up to five million deaths per year could be averted if the global population were more active[1]. The low adherence to physical activity shows the need to implement services that promote physical activity. In addition, it is crucial to educate people on ... -
Sáhka
(Mastergradsoppgave; Master thesis, 2022-05-25)Elite football today is infused with technologies for collecting data on players' performance and health. Technologies such as wearable health and fitness trackers, full-body medical scans, and positional systems mounted around a stadium give coaches a wide range of accurate data about their players. However, coaches do not have the time or ability to analyze all this data for each player to give ... -
Privacy-Preserving and Secure Pilot Self-Assessment
(Mastergradsoppgave; Master thesis, 2022-05-15)There is a strong culture for using safety risk management tools to monitor the different parts of the operation in the aviation industry. However, most of the monitoring that is being done is done on the technical conditions of the aircraft rather than on the pilot. While there is an expectation that the pilots self-assess their health regarding how fit the pilot is to operate an aircraft, all the ... -
Improving audio training for Cochlear Implant users
(Mastergradsoppgave; Master thesis, 2022-05-15)A Cochlear Implant(CI) is an implant that replaces the functionality of the inner ear with an electronic prosthesis. The prosthesis stimulates the auditory nerves within the cochlea so that people with auditory disabilities regain hearing. While the medical process of inserting the implant is relatively straightforward, learning how to use the implant may be difficult. This thesis proposes a ... -
Management of large geospatial datasets
(Mastergradsoppgave; Master thesis, 2022-05-15)In large simulations, like predicting the movement of ocean particles, it is common that simulation executions are related when they share one or more inputs. When the number of simulations increases, it becomes harder for users who run the simulations to keep track of all the simulations. Also, more storage spaces are wasted if there are multiple copies of the same input files. This thesis ... -
Budget-aware scheduling algorithm for scientific workflow applications across multiple clouds. A Mathematical Optimization-Based Approach
(Master thesis; Mastergradsoppgave, 2022-05-16)Scientific workflows have become a prevailing means of achieving significant scientific advances at an ever-increasing rate. Scheduling mechanisms and approaches are vital to automating these large-scale scientific workflows efficiently. On the other hand, with the advent of cloud computing and its easier availability and lower cost of use, more attention has been paid to the execution and scheduling ... -
Building a Neighborhood Resource Map for IoT and Cyber-Physical systems in Resource-Constrained Environments
(Master thesis; Mastergradsoppgave, 2022-05-12)Creating and maintaining a shared resource map between observation nodes that have a behavior where they are mostly sleeping, and have a wake up schedule that are determined at each node locally is challenging. This thesis looks at these challenges, and possible solutions have been proposed to overcome them. Previous research on the topic of constrained IoT networks have looked at the network, ... -
Continious Synchronization of Conflict-Free Replicated Relations
(Master thesis; Mastergradsoppgave, 2022-05-12)Local-first software is an attempt to use the benefits of cloud service while reducing its drawbacks. Local-first software gives the clients ownership and control of their data and makes the service always available. It is achieved by having the primary copy of the service at the client. The most common way to implement local-first software is by utilizing Conflict-free Replicated Datatypes or CRDTs, ... -
Gurret: Decentralized data management using subscription-based file attribute propagation
(Master thesis; Mastergradsoppgave, 2022-05-13)Research institutions and funding agencies are increasingly adopting open-data science, where data is freely available or available under some data sharing policy. In addition to making publication efforts easier, open data science also promotes collaborative work using data from various sources around the world. While the research datasets are often static and immutable, the metadata of a file ... -
Virtual Power Plants and Integrated Energy System: Current Status and Future Prospects
(Chapter; Bokkapittel, 2022)The power system is undergoing a digitalization, decarbonization, and decentralization. Economic incentives along with resiliency and reliability concerns are partly driving the transition. In the process of decentralization, local energy markets are forming at various places. A virtual power plant (VPP) is a by-product of this digitalization capitalizing on the opportunity to further promote renewable ... -
Probabilistic Wind Power and Electricity Load Forecasting with Echo State Networks
(Mastergradsoppgave; Master thesis, 2022-05-15)With the introduction of distributed generation and the establishment of smart grids, several new challenges in energy analytics arose. These challenges can be solved with a specific type of recurrent neural networks called echo state networks, which can handle the combination of both weather and power consumption or production depending on the dataset to make predictions. Echo state networks ... -
Preventing Atmospheric Icing in Aviation: Passive Repulsion of Super Cooled Water Droplets through Hydrophobic Nanocomposites
(Master thesis; Mastergradsoppgave, 2020-07-13)The aviation industry already consists of a complex system of strict regulations related to operation and maintenance, where severe weather conditions further challenge flight operations. Recent research has shown that most aircraft accidents are caused by icing externally, where severe icing conditions lead to the critical degradation of the aerodynamic effectiveness – increasing the stall speed. ... -
Interstellar Dust in the Inner Heliosphere and Impact Detection Capabilities with ESA's Solar Orbiter Spacecraft
(Master thesis; Mastergradsoppgave, 2022-05-31)ESA’s Solar Orbiter spacecraft provides a new opportunity to investigate the inner heliosphere close to sun, by taking measurements with state-of-the-art instruments it will help uncover the mysteries of the Sun. Solar Orbiter is planned for a 7 year mission, reaching as close as 0.28 AU to the sun. Using a process called impact ionization, dust fluxes can be measured during the mission. Some ... -
Machine Learning for Classifying Marine Vegetation from Hyperspectral Drone Data in the Norwegian coast
(Master thesis; Mastergradsoppgave, 2022-05-30)Along the Norwegian coasts the presence of blue forests are the key marine habitats. Due to increased anthropogenic activity and climate change, the health and extent of the blue forests is threatened. However, no low-cost, reliable system for monitoring blue forests exists in Norway at this time. This thesis studied machine learning methods to classify marine vegetation from hyperspectral data ... -
The effects of time-variation of electron fluxes from the auroral ionosphere on M-I coupling
(Master thesis; Mastergradsoppgave, 2022-05-15)Electric potential-differences between the magnetospheric and the ionospheric end of a magnetic flux tube lead to the downward acceleration of electrons in the ionosphere, producing visible auroral arcs. Most of the potential-drop is situated in a narrow altitude-region known as double layer. In the ionosphere, the precipitation of high-energy electrons will produce secondary electrons. Some ... -
Changes in Senescence for High Arctic Vegetation. A Study on How Climate Change May Affect Plant Communities
(Master thesis; Mastergradsoppgave, 2022-06-22)Climate change is predicted to accelerate the closer you get to the poles. And in contrast to more southern regions, which is forecasted to receive increased temperatures and drought, the Arctic is predicted to get both higher temperatures and an increase in precipitation. This means that in the study site for this paper, Adventdalen, on the high arctic island of Spitsbergen, Svalbard, the plant ... -
Wind energy and economic assessment of a wind farm at Senja
(Master thesis; Mastergradsoppgave, 2022-05-31)In order to deliver on the emission cuts in the Paris Agreement, additional renewable energy production is required to cover the rising energy demand. This thesis assesses the wind resources, energy production potential and the economic sustainability of a new potential wind farm, located at Senja island in northern Norway. The aim of this thesis is to decide if a new wind farm at Senja is an ... -
Wind power forecasting as input to day-ahead trading strategies for wind in complex terrain
(Master thesis; Mastergradsoppgave, 2022-06-01)Giving the increasing penetration of intermittent wind power in the liberalized electricity market, wind power forecasting (WPF) is a topic of growing importance [Kariniotakis, 2017]. The number of papers on the field WPF evaluating the statistical performance has increased rapidly, while only a proportion of the former studies focus on the economic benefit of WPF. In this study we have answered how ... -
Profitability of green hydrogen production and feasibility of waste heat integration to DHS in the Ísafjörður’s energy system: A techno-economic analysis
(Master thesis; Mastergradsoppgave, 2022-05-31)Hydrogen production by electrolysis using renewable energy sources is essential for hydrogen to be able to contribute to the green energy transition. Producing the hydrogen on the site of use minimizes the transportation costs and footprint, and utilization of all by-products increases the electric efficiency of hydrogen production. During hydrogen production by electrolysis the chief part of energy ... -
Polar Mesospheric Winter Echoes - an analysis of selected cases
(Mastergradsoppgave; Master thesis, 2022-05-31)Polar Mesospheric Winter Echoes (PMWE) are strong coherent radar echoes, from the upper mesosphere at 55-85 km that are observed typically from end of August until beginning of May. Some models to explain PMWE formation suggest that they form because of turbulence in the atmosphere. Other models suggest that the PMWEs form like summer polar mesospheric echoes (PMSE) where charged dust particles ...