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- Strategic Product Portfolio Management and Global Value Creation A Regulation Aware Governance Framework for Digital Platform Investment Portfolios Master's thesis in Management and Economics of Innovation(2026) Rajolli Channappa, Harish Patil; Siddalaingamurthy, VivekDigital platform holding companies create value through more than capital allocation and market selection. Their performance also depends on whether ownership can be translated into effective governance and whether shared technological capabilities can move lawfully across jurisdictions with different data protection and artificial intelligence regimes. This thesis examines Prosus N.V., a global consumer internet investor spanning food delivery, fintech, classifieds, ecommerce, and travel, as a single embedded case study. Using public corporate disclosures, regulatory instruments, and academic literature, it asks how Prosus selects and prioritises portfolio opportunities (RQ1), how ownership structures shape governance depth and value creation (RQ2), and how regulation and digital sovereignty affect the integration of AI, data, and platform capabilities (RQ3). The analysis finds that portfolio growth has been acquisition led and ecosystem oriented, while governance feasibility and regulatory exposure were historically underweighted at selection. Tencent serves as an external ecosystem and financial benchmark under minority influence, whereas iFood is a controlled operating platform. Governance depth tracks ownership position but is not determined by ownership alone. Byju's full write off followed interacting market, operating, financing, reporting, and governance failures. Prosus's minority position constrained monitoring and intervention but did not independently cause the collapse. Prosus's branded Large Commerce Model programme may create parenting advantage, although its architecture and portfolio wide performance effects are not established by public evidence. The thesis develops four regulation aware governance tools: a two stage legal admissibility gate followed by two datum sensitive Pugh runs; a Portfolio Balance Model separating legal ownership, functional role, and economic exposure; a tiered Lifecycle Governance Trigger Framework linked to observable events and feasible rights; and a Regulatory Exposure and Capability Governance Logic that selects centralised, modular or federated, locally autonomous, or ring fenced designs only after legality is established. These qualitative risk and diligence filters feed a formal merger and acquisition stage gate and financial underwriting process. They do not replace valuation, investment committee judgement, or transaction specific legal advice. Together they form a Three Dimensional Portfolio Governance Framework spanning commercial and technical, architectural, and sovereign and regulatory dimensions.
- FPGA-based platform architecture for a distributed MIMO (D-MIMO) 6G testbed(2026) Solak, ÖznurA distributed MIMO (D-MIMO) testbed changes shape as the experiments running on it change. On a conventional FPGA, replacing one accelerator means rebuilding and reprogramming the whole device, which takes the shared platform out of service for everybody. This thesis builds a Dynamic Function eXchange (DFX) platform for the ALINX Z19 board and its AMD Zynq UltraScale+ XCZU19EG, in which three regions of the fabric can be replaced independently while the rest of the design keeps running. The static design holds the processing system, the DDR and network paths, three AXI DMA engines, the DFX Controller and the ICAPE3 configuration primitive. Around it sit three reconfigurable partitions that share one boundary contract: a 100MHz clock, an active-low reset, a 32 bit control word, a 32 bit status word, a 32 bit AXI4-Stream port in each direction and a shutdown handshake. Because the three partitions present the same 146 pins, a module is written once; because they sit in different places on the die, it is built once per partition against that partition’s abstract shell. An accelerator developer therefore needs neither the parent project nor its bitstream: a routed shell, one 1.75MB checkpoint per partition, and their own VHDL are enough. A standalone application on the Cortex-A53 serves a browser console and an HTTP API over lwIP. Uploading a partial bitstream to a slot validates it against the device IDCODE and the partition’s own configuration frame address, hands the configuration port from PCAP to ICAPE3, and drives the virtual socket manager through shutdown, address programming, restart and trigger. The implemented design closes timing with +4.342 ns of setup slack against 10 ns period with no failing endpoints and no unrouted nets, and it occupies 2.31% of the device LUTs, 1.66% of its registers and 0.61% of its block RAM. It produced a 3.63 kB full bitstream and three partials of 2.59–3.19MB, whose sizes track partition geometry rather than module content. At the 96.97MHz PL clock recorded in the hardware handoff and the 32 bit ICAPE3 port, their ideal configuration-transfer times are 6.69–8.23ms against 93.70ms for the full image. Hardware validation exposed four problems not revealed by reports or simulation: ICAPE3 required software to transfer ownership of the configuration interface from PCAP; the unsupported Ethernet PHY required explicit RGMII skew programming; link speed had to be read after negotiation; and enabled but unused transceiver peripherals could stall processor initialisation and JTAG until the board was powercycled. After these corrections, the board boots unattended, answers ping in 110ms and reconfigures any partition over HTTP while the other two continue running. D-MIMO physical-layer accelerators remain future work.
- Watch out for the mole: Can the obfuscation defences put in place by DAITA be circumvented for video fin gerprinting?(2026) Ridderland, Luna; Tagra, RiyaIn an ever increasingly digital world where user data has become a commodity to be analysed and sold, digital privacy is growing evermore important. Despite the widespread adoption of privacy solutions such as HTTPS and VPNs, information about network traffic is still leaked despite encryption. One such case being the adaptive bitrate protocols used for video streaming, such as MPEG-DASH. In the last years the severity of this vulnerability has become apparent. In a recent study by Björklund and Duvignau, it has proved feasible to use this leak to build an attack on a large scale, covering hundreds of thousands of videos across multiple video streaming providers, capable of identifying streamed video traffic with high accuracy. While there are certain tools that are used to mitigate these types of traffic analysis attacks, one such tool being Mullvad VPN’s DAITA, it has not previously been known to what extent it protects against analysis of video traffic. This thesis investigates to what extent DAITA protects against the attack, showing that during testing a protection of 78% was observed. This work has also looked at the underlying traffic patterns of video streaming using DAITA, and found that the degree of protection is likely dependent on DAITA’s internal system parameters and on what content is being streamed. Alternative identification logic is tested in an attempt to circumvent the added noise introduced by DAITA. Additionally the feasibility of reducing the size of the required dataset was investigated, which if possible would show that an attack utilizing this vulnerability would be cheaper to deploy on a large scale, making further defensive advancements an important matter.
- Composite flange design - Conceive a novel flange design focused on stiffness(2026) Bonetto , FilippoCarbon fibre reinforced polymers (CFRPs) are increasingly adopted in civil aviation due to their exceptional stiffness-to-weight and strength-to-weight characteristics. Among the structural elements that benefit from CFRP construction, T-joints represent a critical component, commonly employed to transfer loads between structural members while maintaining overall assembly integrity. This thesis investigates T-joints acting as internal flanges subjected to axial loading. This introduces a challenging stress state to the component. Specifically, high through-thickness interlaminar stresses can trigger delamination failure in the radii. The project is structured around three stages: a comparison of three geometric design iterations to identify the normalised stiffest design, the simulation of a physical test replicating real boundary conditions, and the manufacturing and testing of physical samples. In particular the manufacturing is carried out via vacuum assisted resin transfer moulding (VARTM), more commonly called vacuum infusion. Finite element analyses are carried out in ANSYS, with composite layups modelled using shell elements in Ansys using Ansys Composite PrepPost (ACP). Physical testing is carried out with an MTS tensile test machine and digital image correlation (DIC) is used to capture the experimental deformation of the tested samples. The results show that the simulation is able to capture the initial elastic response of the experimental tests with good agreement. The study aims to provide the building blocks to develop a novel T-joint design, with higher weight-normalised stiffness than the existing alternatives, after having validated the simulation framework against experimental results. Key limitations include the geometric simplification to a 100 mm representative section and the deviation to VARTM from the final production process intended by GKN Aerospace.