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In this article, we focus on a periodic resource allocation problem applied on a dynamical system which comes from a biological system. More precisely, we consider a system with 𝑁 resources and 𝑁 activities, each activity use the allocated resource to evolve up to a given time 𝑇 > 0 where a control (represented by a given permutation) will be applied on the system to reallocate the resources. T
The potential of industrial applications for microalgae has motivated their recent fast development. Their growth dynamics depends on different factors that must be optimized. Since they get their energy from photosynthesis, light is a key factor that strongly influences their productivity. Light is absorbed and scattered in the liquid medium, and irradiance exponentially decreases towards the dar
Plastic pollution poses urgent environmental, societal, and health challenges, yet governance remains fragmented. The 2022 UNEA resolution 5/14 offers an opportunity for a legally binding treaty, but negotiations are stalled by geopolitical tensions, entrenched industrial interests, and divergent views on the plastic problem. Effective governance is further constrained by knowledge gaps spanning tPlastic pollution poses urgent environmental, societal, and health challenges, yet governance remains fragmented. The 2022 UNEA Resolution 5/14 offers an opportunity for a legally binding treaty, but negotiations are stalled by geopolitical tensions, entrenched industrial interests, and divergent views on the plastic problem. Effective governance is further constrained by knowledge gaps spanning t
Semiconductors use built-in logic to perform test, validation, and other operational activities over the lifetime of the device. These test features, referred to as instruments, become a security risk, as they provide high observability and controllability of the device. The fear is that an adversary could exploit these instruments with malicious intent. We have analyzed and developed security mea
The original manuscript to the textbook: G. Kristensson, Scattering by Electromagnetic Waves by Obstacles [17] was at first much longer than the 750 pages the publisher allowed. I then decided to extract some of the chapters and add this material later as supplements, to be published on my home page. This is the first in that series. The notation follows the one in the main book, which is referred
When machining titanium alloys, diffusion and oxidation are key wear mechanisms that affect conventional machining. At the microscale, however, the knowledge about tool-workpiece interactions remains limited, partly due to the challenge of analysing wear phenomena in microtools. This study investigates tool wear mechanisms during micromilling of Ti6Al4V by employing cross-sectional analysis of wor
Plastic deformation remains a critical tool deterioration mechanism that limits the performance of cemented carbide cutting tools in high-speed machining. Reliable detection and prediction of its onset are essential for optimizing tool performance and machining process stability. Building on the multi-sensor framework presented in Part 1, this study (Part 2) focuses on developing machining methodo
Stainless steels have a wide range of applications due to their high corrosion resistance and strength. However, their machining remains challenging, hence limiting the performance and sustainability of machining operations. Tool wear is one of such key limiting factors, which is attributed to low thermal conductivity, work-hardening tendency and high forces in machining. In this study the perform
Ti (C, N)-based cermets are widely employed in continuous finishing operations of metal cutting owing to their high hardness, superior oxidation resistance, and chemical stability compared to WC-Co based carbides. Nevertheless, their use in interrupted cutting processes such as milling remains restricted due to their inherently low fracture toughness, which often results in brittle-like failure. I
Plastic deformation remains a critical tool deterioration mechanism that limits the performance of cemented carbide cutting tools in high-speed machining. Reliable detection and prediction of its onset are essential for optimizing tool performance and machining process stability. This paper, the first in a two-part study, presents a multi-sensor framework for detecting and predicting the onset of
Rock-cutting processes are the backbone of the mining, oil and gas, civil engineering, and construction industries. Performance of such cutting operations is controlled by temperature-dependent phenomena of abrasion, phase transformations, and oxidation of tooling. This study develops a novel approach for the measurement of cutting temperature for the case of the rock cutting process in longitudin
β-Ga2O3 is a promising ultrawide-bandgap semiconductor for high-power and optoelectronic applications; yet, its intrinsically low thermal conductivity poses challenges for heat dissipation. To clarify how strain and size effects govern phonon transport, we investigate bulk β-Ga2O3 under biaxial tensile strain and finite-size confinement using first-principles calculations and the phonon Boltzmann
It is often argued that design serves as an effective change agent in strategy formation. However, the question of how this actually occurs remains largely unexplored. Through case studies of five design consulting firms in Denmark, this paper examines how design gets involved in the making of strategy. The findings show that there are at least two paths to strategy-level work: First, design works
Collaborating with public or private sector organizations in project-based courses equips design students with key skills to future-proof their careers, but this gives only one side of the story as the key feature of these partnerships is that they are mutualistic collaborations. However, the benefits to organizations of collaborating are not fully explored. This paper presents a case study of par
Public sector organizations have been increasingly turning to design in their pursuit to innovate and address pressing challenges that seem intractable through their existing ways of working. Design’s presence in the public sector is still a relatively recent phenomenon ridden with many challenges. Through a study of three municipalities in Sweden, we present tensions designers face as they work t
