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This study explores the efficacy of horizontally polarised shear (SH) waves in ultrasonic inspection of concrete-embedded steel liner plates, focusing on corrosion detection. SH-waves are found to significantly improve the localisation and potential dimensional assessment of embedded plate-like structures compared to com- pressional (P) waves, as evidenced by SH C-scans. Anomalies corre- sponding
Artikeln utforskar den snabba och COVID-19 pandemiframkallade migrationen från campus till digital undervisning 2020–2021. Migrationsprocessen erbjuder en möjlighet att undersöka flera viktiga frågor relaterade till digital undervisning, lärande och utbildning. Baserat på vår studie av situationen för School of Social Work vid Tata Institute of Social Sciences i Mumbai, Indien, och Socialhögskolan
Numerical simulation tools and experimental measurement techniques are required to provide accurate description of flow features in application relevant scales and boundary conditions enroute to realizing the design and integration of high-speed arial platforms. A case of 10° wedge exposed to Mach 3.5 supersonic flow at high Reynolds numbers provides an opportunity to conduct a comparative analysi
This paper investigates the aeroacoustic properties of dual-stream co-axial supersonic jets, focusing on sound generation at the engine nozzle exit, which significantly contributes to cabin noise in supersonic civil aviation. The study delves into three primary noise-generating mechanisms present in supersonic jets: broadband shock-associated noise, jet screech, and turbulent mixing noise. While s
Qualitative and quantitative visualizations of transonic turbomachinery flows provide essential information on compressibility and Mach number effects on boundary layer development, shock-boundary layer interactions (SBLI) and trailing edge flows. Background Oriented Schlieren (BOS) is a relatively new optical technique that allows capturing unsteady density gradient fields through turbomachinery
Degrowth promises to make human life on earth sustainable but represents a radical change to the dominant paradigm, in which wellbeing is coupled with consumption. We draw on the idea that imagined futures perform the present, meaning that ecologically sustainable futures may be generated if marketers envision and “sell” them as desirable.
Biomass residues are often considered key in a reorientation towards circular bioeconomies, both by returning organic matter and nutrients to soils and by expanding the feedstock base for fossil-free products. Different indicators are available to assess progress towards circularity, but many available indicators and assessments seem to focus on product or material circularity, and lack in coverag
Dokumentation och resultat från en invändig byggnadsarkeologisk undersökning av de översta våningarna på Glimmingehus
Companies — for profit commercial corporations — shape our world, and our world is shaped to the service of companies. The superhuman capabilities of companies and the enormous resources at their disposal has allowed them to massively transform our natural and social environment. Some argue that we are not living in the Anthropocene, but rather in the Technocene—a geological era brought about not
Obesity and type 2 diabetes are increasing at alarming rates worldwide, presenting significant public health challenges. A key player in these conditions is GLUT4, a protein that helps transports glucose into cells in response to insulin. Proper function of GLUT4 is crucial for maintaining healthy blood sugar levels and overall metabolic health.To address this, in this thesis I have explored the m
När det internationella samfundet under ”superutvecklingsåret” 2015 åtog sig uppgiften att utrota fattigdom och hunger var det under löftet ”Leave no one behind”, dvs att alla överallt ska inkluderas och få ta del av utvecklingens framsteg. Hur kan ett sådant löfte bli verklighet och vilka utmaningar ligger framför oss? Denna översiktsartikel syftar till att ta itu med dessa frågor genom att fokus
Young people have been prominent climate advocates globally and they are also becoming increasingly visible in global climate politics. They have participated in Conferences of the Parties (COPs) to the United Nations Framework Convention on Climate Change (UNFCCC) since COP1 in 1995. While recent studies have started to examine the representativeness and participation of youth at the COPs, we sti
This research presents advancements into the fabrication, operation and characterization of electronicnanomaterials and devices. It focuses on the interfaces of metals, oxides and semiconductors anddeveloping techniques to improve their integration into devices. Covering nanoelectronics fromphotovoltaics to circuit elements, a combined suite of scanning probe and X-ray techniques was usedto provid
Kraft black liquor (KBL) is a side-stream that is produced during the kraft pulping process, and mainly contains lignin, hemicelluloses, and cooking chemicals, namely sodium hydroxide and sodium sulphide. KBL is usually evaporated and burned in a recovery boiler in order to recover the cooking chemicals and generate energy. However, pulp mills are sometimes limited by the capacity of their recover
Youth represent a great part of humanity and have always been active and intriguing political actors, yet youth remain sidelined in international studies. Issues of social identity perception and its consequences have been embraced by post-positivist approaches in international studies. Yet, while race, gender, and class challenges are shaking the discipline, age is a key research gap. To fill thi
