Filtyp
Climate change (CC) is altering the working conditions for water suppliers. To enhance preparedness, CC has been emphasised in the risk-based approach (RBA) and water safety planning guidelines. We studied how the RBA approach has been applied in small water supplies in the Nordic countries to mitigate CC related risks and impacts. We interviewed small water supply operators and authorities in eac
Correlated electron physics is intrinsically a multiscale problem, since high-energy electronic states screen the interactions between the correlated electrons close to the Fermi level, thereby reducing the magnitude of the interaction strength and dramatically shortening its range. Thus the handling of screening is an essential ingredient in the first-principles modeling of correlated electron sy
Understanding the structure of metal-ligand complexes is essential for catalyst design, materials development, and biochemical modeling. Metal carbonyls are especially relevant due to their diverse structures and electronic features. Here, we benchmarked seventeen density functionals (B3LYP, BP86, CAM–B3LYP, M06, M06L, PBE, PBE0, r2SCAN, r2SCAN–3c, revPBE, revTPSS, RPBE, TPSS, TPSS0, TPSSh, (Formu
Creating thermally stable collagen mimetic peptides (CMPs) is a persistent challenge. Nature leverages covalent crosslinkings to stabilize collagen's signature triple helical tertiary structure and higher-order assemblies. Herein, crosslinkings between levodopa (Dopa) and lysine can covalently stabilize the triple helix in CMPs is demonstrated. Since alkaline conditions catalyze the oxidation of t
Problem statement: Child work is a serious global issue that has been widely covered by the international media since the beginning of the 90s. The international community has increasingly realized their own link with the amount of childwork in the export-oriented industries. This has resulted in an increase of international pressure of various kinds, and to various campaigns which combat child wo
Following trade liberalisation and the resulting loss in government revenues from trade tariffs, governments need to find other sources of revenue to compensate for this loss. Many developing countries have set their hopes on value added tax (VAT). This was also the case for Morocco when it introduced VAT in 1986. Over the years it has become evident that the Moroccan VAT is not sufficiently simpl
The aim of this essay is to examine the relationship between the European Commission and civil by focusing on the issue of legitimacy. This study takes a critical stand towards the prevailing view in the debate on the EU’s democratic deficit. This view that centers on that EU institutions, like national parliaments and governments, derive most of their legitimacy from public input, so-called input
The aim of our study was to examine how gay parenting is constructed in Swedish newspapers. To get a more thorough understanding of the contents of the eleven selected articles, we did a content analysis. To perform a good analysis, we chose to create themes and encode the texts. The selected articles were published between the years 2002 to 2004 when gay rights to adoption were raised. We conclud
The master thesis is a collaboration between Trelleborg AB and the division of Production and Materials Engineering at Lund University, Faculty of Engineering. The objective of the thesis has been to analyse the current production system from a lean perspective, identify an area in need of improvement and generate concrete solutions for how the studied area can be improved in terms of cost, perfor
Höganäs AB is developing an axial flux machine, where an even airgap between the stator and rotor is a vital parameter when designing a well functioning machine. It is believed that the stator is the component that introduces the biggest variations to the airgap, and that is why the stator is the object of investigation for this thesis. The stator is made of metal powder and the steps in the manuf
Colorless distributed combustion (CDC) is a promising novel technology to reduce emissions of carbon monoxide and nitrogen oxides in gas turbine combustors. CDC features a different flame regime than conventional gas turbine combustors, associated with a distributed reaction zone and low and uniform temperatures due to dilution of combustion air with exhaust gases. In this thesis, an attempt has b
The consequences of early rheumatoid arthritis were studied in a series of patients treated at University Hospital, Lund, during the period 1985-1989. Mean disease duration at enrollment was 12 months. Most of the patients have now been followed prospectively for five years, during which time disease activity and pain have increased markedly. Ability to perform the activities of daily living (ADL)
Popular Abstract in Swedish I de flesta reglerproblem är syftet att hålla utsignalen nära ett önskat värde trots störningar som påverkar systemet. Ibland är det bästa referensvärdet inte känt i förväg. I stället skall det hittas i realtid för att optimera systemets prestanda. Denna avhandling behandlar en så kallade probing-strategi som kan tillämpas för denna klass av problem. Fokus ligger i till
Three methanogenic biofilm bioreactors were studied to evaluate the performance of three types of carriers. The carrier material were consisted of sisal fibre waste, pumice stone and porous glass beads, and the bioprocess evaluated was the methanogenesis anaerobic digestion of sisal leaf waste leachate. Process performance was investigated by increasing the organic loading rate (OLR) step-wise. Th
We studied electrophysiological properties of single chemosensory neurons in the mouthparts of the spiny lobsters Panulirus argus and Panulirus interruptus to complement our growing understanding of the behavioral roles of mouthparts of decapod crustaceans. Food mixtures and 13 single compounds were used to characterize the response specificity, sensitivity, and time course of individual neurons i
We consider the “minor” and “homeomorphic” analogues of the maximum clique problem, i.e., the problems of determining the largest h such that the input graph (on n vertices) has a minor isomorphic to Kh or a subgraph homeomorphic to Kh, respectively, as well as the problem of finding the corresponding subgraphs. We term them as the maximum clique minor problem and the maximum homeomorphic clique p
Electromagnetic induction measurements (EM) were taken in a saline gypsiferous soil of the Saharan-climate Fatnassa oasis (Tunisia) to predict the electrical conductivity of saturated soil extract (ECe) and shallow groundwater properties (depth, Dgw, and electrical conductivity, ECgw) using various models. The soil profile was sampled at 0.2 m depth intervals to 1.2 m for physical and chemical ana
This study investigates several commercial selective catalytic reduction (SCR) catalysts (A–E) for application in a high-temperature (approximately 525 °C) and high-concentration (5000 ppm NO) system in combination with CO2 capture. The suggested process for removing high concentrations of NOx seems plausible and autothermal operation is possible for very high NO concentrations. A key property of
This study reports increasing iron concentrations in rivers draining into the Baltic Sea. Given the decisive role of iron to the structure and biogeochemical function of aquatic ecosystems, this trend is likely one with far reaching consequences to the receiving system. What those consequences may be depends on the fate of the iron in estuarine mixing. We here assess the stability of riverine iron
