Browsing PhD theses in Engineering and Sciences by Title
Now showing items 16-35 of 122
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Channel simulation models for mobile broadband communication systems
(Doctoral thesis; Peer reviewed, 2009)Mobile broadband wireless communication systems (MBWCS) are emerging as a solution to provide broadband services to users on the move. These systems are expected to operate in a wide variety of propagation scenarios, at ... -
Cod at drift in the Nordic seas
(Doctoral dissertations at University of Agder;, Doctoral thesis, 2017) -
Condition Monitoring Methods for Large, Low-speed Bearings
(Doctoral Dissertations at the University of Agder; no. 260, Doctoral thesis, 2020)In all industrial production plants, well-functioning machines and systems are required for sustained and safe operation. However, asset performance degrades over time and may lead to reduced effiency, poor product quality, ... -
Condition monitoring of fibre ropes using machine learning
(Doctoral Dissertations at the University of Agder; no. 368, Doctoral thesis, 2022)The application of fibre ropes in offshore lifting operations has significant potential for further development. With minimum breaking loads (MBL) equivalent to steel wire at similar diameters and almost neutral buoyancy ... -
Condition monitoring of rolling element bearings during low and variable speed conditions
(Doctoral dissertations at University of Agder;, Doctoral thesis, 2019) -
Cooperative Communications inWireless Local Area Networks: MAC Protocol Design and Multi-layer Solutions
(Doctoral dissertations at the University of Agder;48, Doctoral thesis; Peer reviewed, 2012)This dissertation addresses cooperative communications and proposes multi-layer solu- tions for wireless local area networks, focusing on cooperative MAC design. The coop- erative MAC design starts from CSMA/CA based ... -
Cooperative Medium Access Mechanisms and Service-oriented Routing in Multi-hop Wireless Networks
(Doctoral dissertations at the University of Agder;37, Doctoral thesis; Peer reviewed, 2011)Multi-hop wireless networks have been regarded as a promising path towards future wireless communication landscape. In the past decade, most related work has been performed in the context of mobile ad hoc networks. In ... -
Cryptographic Enforcement of Attribute-based Authentication
(Doctoral dissertations at University of Agder;, Doctoral thesis; Peer reviewed, 2016)This dissertation investigates on the cryptographic enforcement about attributebased authentication (ABA) schemes. ABA is an approach to authenticate users via attributes, which are properties of users to be authenticated, ... -
Data-driven Transfer Learning Methods for Wireless Networks
(Doctoral dissertations at University of Agder; no. 475, Doctoral thesis, 2024)Radio maps provide information about spatial signal strength and network coverage in a designated geographical area. The estimation of accurate radio maps is necessary to improve the performance of many applications of ... -
The design of efficient and secure P2PSIP systems
(Doctoral dissertations at the University of Agder;27, Doctoral thesis; Peer reviewed, 2010) -
Developing Algebraic Thinking in a Community of Inquiry : Collaboration between Three Teachers and a Didactician
(Doctoral Dissertations at the University of Agder, Doctoral thesis; Peer reviewed, 2009)In this thesis I report from a study of the development of algebraic thinking of three teachers, from lower secondary school, and a didactician from a university in Norway (myself). The thesis offers an account of ... -
Developing an identity as a secondary school mathematics teacher : A narrative case study of three mathematics teachers in their transition from university teacher education to employment in school
(Doctoral dissertations at University of Agder, Doctoral thesis, 2018) -
Development of Motion Control Systems for Hydraulically Actuated Cranes with Hanging Loads
(Doctoral Dissertations at the University of Agder; no. 394, Doctoral thesis, 2023)Automation has been used in industrial processes for several decades to increase efficiency and safety. Tasks that are either dull, dangerous, or dirty can often be performed by machines in a reliable manner. This may ... -
The development of students’ mathematical competencies : The case of biology students
(Doctoral Dissertations at the University of Agder; no. 396, Doctoral thesis, 2023)This research focuses on the development of mathematical competencies of first-year university students in a Biology department as they engage in nonroutine open-ended mathematical tasks set in the context of biology. The ... -
Digital Twin technology toward more sustainable buildings
(Doctoral dissertations at University of Agder; nr. 440, Doctoral thesis, 2023)The integration of digital technologies in the form of sensor networks and automation systems has a significant impact on the Architecture, Engineering, and Construction- Facility Management (AEC-FM) industry in terms of ... -
Dynamics of undergraduate engineering students’ learning activities in mathematics in an online and in a blended environment
(Doctoral Dissertations at the University of Agder; no. 291, Doctoral thesis, 2020)This thesis reports from a research study which investigates the role of technology rich environments in undergraduate engineering students’ processes of learning mathematics. The research is founded within a naturalistic ... -
Elevers matematikksamtaler : Læring i og mellom praksiser
(Doctoral dissertations at University of Agder;57, Doctoral thesis; Peer reviewed, 2012)The aim of this study “Students´mathematical conversations – Learning in and beween practices” is to examine students’ mathematical conversations and the students learning in and between practices. I study what characterizes ... -
Energy Efficiency in Hybrid Mobile and Wireless Networks
(Doctoral dissertations at the University of Agder;49, Doctoral thesis; Peer reviewed, 2012)Wireless Internet access is almost pervasive nowadays, and many types of wireless networks can be used to access the Internet. However, along with this growth, there is an even greater concern about the energy consumption ... -
Enhancement of Charging Resource Utilization of Electric Vehicle Fast Charging Station with Heterogeneous EV Users
(Doctoral dissertations at University of Agder;no. 416, Doctoral thesis, 2023)This thesis presents innovative charging resource allocation and coordination strategies that maximize the limited charging resources at FCS with heterogeneous EV users. It allows opportunistic EV users (OEVs) to exploit ... -
Enhancing Mathematics Learning Through Peer Assessment Using Mobile Tablet Based Solutions
(Doctoral dissertations at the University of Agder;64, Doctoral thesis; Peer reviewed, 2013)Higher education is facing unprecedented challenges with an increasing demand for high quality education, driven by tougher global competition. Student numbers are fast growing at most universities, whereas the sources ...