Department of Engineering Sciences: Nye registreringer

Viser treff 161-180 av 1119

    • Improving the technical properties of recycled aggregates for road construction 

      Adomako, Solomon (Doctoral Dissertations at the University of Agder; no. 428, Doctoral thesis, 2023)
      Sustainable construction, operation and maintenance of road infrastructure are currently of high priority in Norway. The development of the highway standards and specifications (e.g., N200) plays an important role, so that ...

    • Modeling asteroid binary systems with the full two-body problem using surface integrals 

      Ho, Alex (Doctoral Dissertations at the University of Agder; no. 432, Doctoral thesis, 2023)
      An asteroid binary system, where two asteroids are in mutual orbit, is important to study as it can provide knowledge of the history of the asteroid population. The most important mechanism to form asteroid binaries in the ...

    • Charting the path toward a greener world: A review of facilitating and inhibiting factors for carbon neutrality 

      Talwar, Shalini; Dhir, Amandeep; Luqman, Adeel; Gupta, Jaya; Gugnani, Ritika (Peer reviewed; Journal article, 2023)
      The carbon neutrality (CN) literature has witnessed a mushrooming growth but also limited attempts to systematize the mass of evidence running in multiple directions. The consequent accumulation of fragmented insights can ...

    • Technical and Environmental Properties of Recycled Aggregates Produced from Concrete Sludge and Excavation Materials 

      Adomako, Solomon; Engelsen, Christian John; Døssland, Line Teigen; Danner, Tobias Alexander; Thorstensen, Rein Terje (Peer reviewed; Journal article, 2023)

    • Estimating Sway Angle of Pendulum System Using Hybrid State Observer Incorporating Continuous and Discrete Sensing Signals 

      Ano, Shuta; Seki, Kenta; Ruderman, Michael; Iwasaki, Makoto (Peer reviewed; Journal article, 2020)
      This paper presents the design of a hybrid state observer that estimates the sway angle in trolley systems with a pendulum, such as overhead cranes. In the system, sway angle signals detected by angular sensors are generally ...

    • Crash Response of a Repaired Vehicle-Influence of Welding UHSS Members 

      Noorsumar, Gulshan; Robbersmyr, Kjell Gunnar; Rogovchenko, Svitlana; Vysochinskiy, Dmitry (Peer reviewed; Journal article, 2020)
      Automakers generally recommend not to weld structural parts after a vehicle crash, and these should be replaced as a whole part in case of a crash event. Sectioning of these members is also not recommended and use of the ...

    • Relative evaluation of regression tools for urban area electrical energy demand forecasting 

      Johannesen, Nils Jakob; Kolhe, Mohan Lal; Goodwin, Morten (Journal article; Peer reviewed, 2019)
      Load forecasting is the most fundamental application in Smart-Grid, which provides essential input to Demand Response, Topology Optimization and Abnormally Detection, facilitating the integration of intermittent clean ...

    • Multiport DC-DC Converters for Hybrid Energy Systems 

      Jiya, Immanuel Ninma (Doctoral dissertations at University of Agder;no. 423, Doctoral thesis, 2023)
      Renewable energy sources (RESs) like solar and wind have gained attention for their potential to reduce reliance on fossil fuels and mitigate climate change. However, integrating multiple RESs into a power grid is challenging ...

    • Optimizing Fenton-like process, homogeneous at neutral pH for ciprofloxacin degradation: Comparing RSM-CCD and ANN-GA 

      Salari, Marjan; Nikoo, Mohammad Reza; Al-Mamun, Abdullah; Rakhshandehroo, Gholam Reza; Ghorbani Mooselu, Mehrdad (Peer reviewed; Journal article, 2022)
      Antibiotics are considered among the most non-biodegradable environmental contaminants due to their genetic resistance. Considering the importance of antibiotics removal, this study was aimed at multi-objective modeling ...

    • Dzyaloshinskii-Moriya induced spin-transfer torques in kagome antiferromagnets 

      Rodrigues, Davi R.; Salimath, Akshaykumar; Everschor-Sitte, Karin; Hals, Kjetil Magne Dørheim (Peer reviewed; Journal article, 2022)
      In recent years antiferromagnets (AFMs) have become very promising for nanoscale spintronic applications due to their unique properties, such as THz dynamics and the absence of stray fields. Manipulating antiferromagnetic ...

    • Modeling and analysis of electrical system for offshore oil and gas platform 

      Øen, Elisabeth (Master thesis, 2023)
      The main objective of power system analysis is to ensure that the electrical power system is modeled in a safe, reliable, and efficient manner. Short-circuit analysis is a power system analysis investigating the maximum ...

    • Moisture ingress in photovoltaic modules: A review 

      Segbefia, Oscar Kwame; Imenes, Anne Gerd; Sætre, Tor Oskar (Peer reviewed; Journal article, 2021)
      Moisture ingress in photovoltaic (PV) modules is the core of most degradation mechanisms that lead to PV module power degradation. Moisture in EVA encapsulant can lead to metal grids corrosion, delamination and discolouration ...

    • Defects and fault modes of field-aged photovoltaic modules in the Nordics 

      Segbefia, Oscar Kwame; Akhtar, Naureen; Sætre, Tor Oskar (Peer reviewed; Journal article, 2023)
      PV module durability and reliability influences its efficiency and return on investment. Hence, collection of ample and credible PV module reliability data in each climatic zone becomes increasingly essential. In this work, ...

    • Moisture induced degradation in field-aged multicrystalline silicon photovoltaic modules 

      Segbefia, Oscar Kwame; Akhtar, Naureen; Sætre, Tor Oskar (Peer reviewed; Journal article, 2023)
      Moisture ingress is one of the key fault mechanisms responsible for photovoltaic (PV) devices degradation. Understanding moisture induced degradation (MID) mechanisms in field-aged PV modules is more reflective of the ...

    • Time-delay based output feedback control of fourth-order oscillatory systems 

      Ruderman, Michael (Peer reviewed; Journal article, 2023)
      We consider a robust stabilization of the fourth-order oscillatory systems with non-collocated output sensing. Worth recalling is that the fourth-order systems are relatively common in mechatronics as soon as there are ...

    • Safety against quick clay landslide 

      Morterud Munir, Yasir (Master thesis, 2023)
      In recent years, there has been a growing focus on landslide hazards and risks due to the gradual increase in landslide occurrences in Norway attributed to climate and climate change. This has led to heightened attention ...

    • Vindkraft ved E18 

      Skeide, Kjetil Orbakk; Neuman, Nicolai Emil; Maisenhølder, Aleksander C. (Master thesis, 2023)
      Wind turbine technology is a field that has experienced significant innovation and technical progress over the last decades. Because of this, such projects are more feasible now than ever, particularly from a technical ...

    • Vindkraft ved E18 

      Skeide, Kjetil Orbakk; ; Neuman, Nicolai Emil; ; Maisenhølder, Aleksander C. (Master thesis, 2023)
      Wind turbine technology is a field that has experienced significant innovation and technical progress over the last decades. Because of this, such projects are more feasible now than ever, particularly from a technical ...

    • Vindkraft ved E18 

      Skeide, Kjetil Orbakk; Neuman, Nicolai Emil; Maisenhølder, Aleksander C. (Master thesis, 2023)
      Wind turbine technology is a field that has experienced significant innovation and technical progress over the last decades. Because of this, such projects are more feasible now than ever, particularly from a technical ...

    • Building Occupants' Comfort Levels Identified with POE and Visualized by BIM 

      Nørve, Victoria (Master thesis, 2023)
      Creating and maintaining a comfortable indoor environment is crucial for energy-efficient building operation. However, there is often a disparity between defined comfort conditions and occupants' perceived comfort. To ...