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This thesis deals with the design and synthesis of rhodium and iridium bis-η2 diolefin catalysts and their applications in C–C bond formation and asymmetric catalysis.More specifically, the second chapter describes the development of inter- and intramolecular (5+2) cycloadditions catalyzed by cationic iridium(I) complexes that lead to the formation of seven-membered rings in a single step. DFT was
This thesis aims to contribute to the field of time controlled charge and energy transport in mesoscopic systems. In Chapter 1, Chapter 2 and Chapter 3 a short review of the scattering matrix theory is presented, including both charge and energy transport, useful to understand the mathematical landscape used in Papers I, II, III and IV. Chapter 3 briefly presents the thermoelectric properties of m
The contribution of this licentiate thesis lies in the modelling of a multi-echelon inventory system with more general backorder cost structures. Backorder costs are traditionally assumed to be linear, whereas we consider structures that are more general functions of the customers’ time in backorder. The system studied is a two-echelon system with one central warehouse and a number of local sites,
Rheumatoid Arthritis (RA) is a chronic, inflammatory, and systemic disease of unknown aetiology that affects 0.5‒1.0% of the population in Europe, more women than men. Pain, physical disability, fatigue, and sleep disturbances are some of the most pronounced symptoms in patients with a more severe disease or with a longer disease duration, resulting in activity limitations that affect quality of l
In today’s city branding field, a gap exists between research and practice. A gap made more evident since the field has moved to prefer a participative approach, where stakeholders are more acknowledged as an important part of the city branding process, illustrating the little knowledge of stakeholders’ own practices. This study undertakes a mission of moving forward in the research field by shedd
Recent years have seen tremendous effort in the development of approaches with which to obtain quantum mechanics/molecular mechanics (QM/MM) free energies for reactions in the condensed phase. Nevertheless, there remain significant challenges to address, particularly, the high computational cost involved in performing proper configurational sampling and, in particular, in obtaining ab initio QM/MM
In gas turbine engine, nickel base alloy, such as Alloy 718, accounts for almost half of the total material requirement. Nickel-base superalloys are used for gas turbine components mainly because of their outstanding strength and resistance to oxidation at high temperatures (> 550°C). The massive cost involved with the machining of nickel alloys has driven continued research and development of cut
15 september 2026 09:00 till 17 september 2026 17:00 | Konferens The ICOS (Integrated Carbon Observing System) Science Conference 2026 will be held at Lund University. The conference will gather hundreds of international scientists studying greenhouse gases and the movement of carbon across the land, ocean and atmosphere. The ICOS Science Conference, organised every second year by the ICOS communi
https://www.lu.se/evenemang/icos-science-conference-2026-0 - 2026-07-10
Abstract Biocatalysis is considered as benign and efficient alternative to chemical catalysis for organic syntheses. Lipases are the most versatile biological catalysts implemented so far with great potential for production of different chemicals and materials in non-conventional reaction media. This thesis presents investigations on lipase catalyzed esterification and transesterification reaction
Deuterated biomolecules - where hydrogen atoms (H) are exchanged to its isotope deuterium (D) - are essential for biological experiments in neutron scattering, but they are not readily available. In neutron scattering, D has a strong positive coherent scattering length (6.67 fm) in comparison with the negative scattering length of H (-3.74 fm). These different characteristics of neutrons to D and
Electric power grids have a limited capacity for safe and reliable transfer of power. Due to the ongoing large-scale expansion of variable renewable energy sources, such as wind and solar, there is a growing need for rapid gridcapacity increase.This thesis explores methods for improving and expanding grid capacity through control of converter-interfaced energy resources, including wind and solar p
Multi-component transient signals show up in many different areas, most commonly in communication and radar but are also often found in measurements of human related signals, such as electrical responses of the heart and the brain. Transient signals are also typical in animal acoustic applications, e.g., dolphin echo locations and bird song syllables. The usual basis functions in linear modeling o
