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A fully divergence-free method is proposed for generation of inhomogeneous/anisotropic turbulence with large spatial variation. The method is based on the method of Smirnov et al., which is known to violate the divergence-free constraint when spatial variation of turbulence is present. In the proposed method a vector potential field is introduced; by taking the vector curl of the potential field o
Lagging fires pose a significant safety risk in industrial systems where organic contaminants interact with lagging (insulation) materials. This study used isothermal calorimetry to investigate factors influencing the self-heating and ignition propensity of various C18-based substances and rapeseed oil, as contaminants in the lagging. The contaminant and lagging under investigation were added to g
Treatment of met-myoglobin (Fe-III) with H2O2 gives rise to ferryl myoglobin, which is closely related to compound II in peroxidases. Experimental studies have given conflicting results for this species. In particular, crystallographic and extended x-ray absorption fine-structure data have shown either a short (similar to170 pm) or a longer (similar to190 pm) Fe-O bond, indicating either a double
The world is facing of a number of great challenges as the population is growing and living habits are getting more resource demanding. At the same time as food security has to be assured, growth in biofuel and meat production pose a risk for increasing land use conflicts and negative environmental consequences. In this report production of food, feed and biofuels are discussed from a land use pe
We present multi-epoch high-resolution optical spectroscopy, UV/radio/X-ray imaging, and archival Hubble and Spitzer observations of an intermediate luminosity optical transient recently discovered in the nearby galaxy NGC 300. We find that the transient (NGC 300 OT2008-1) has a peak absolute magnitude of M-bol approximate to -11.8 mag, intermediate between novae and supernovae, and similar to the
Colloidal semiconductor nanocrystals, referred to as quantum dots, offer simple low-temperature solution-based methods for constructing optoelectronic devices such as light emitting diodes and solar cells. We review recent progress in the understanding of photoinduced processes in key components of a certain type of quantum dot solar cells where the dots sensitize a suitable metal oxide, such as Z
Popular Abstract in Swedish Kontroll av fororeningar i dagens fusionsmaskiner aer ett inte alltfor stort problem. De kan dock anvandas for diagnostiskt syfte eftersom deras linjeemission avslojar ett flertal intressanta plasmaparametrar. For att kunna maeta egenskaper som jontemperatur, jondensitet och plasmarotation i ett fusionsplasma, aer det av yttersta vikt att den spektroskopiska tolkningen The spectrum and energy levels C IV and the 3l4l' system of the Mg-like ions in the iron group elements has been investigated. This has led to several hundred identified transitions, many of them previously unknown. Using the Charge Exchange diagnostic system at JET, ion temperatures, rotation velocities and densities have been derived from visible spectroscopic measurements on fully ionised light
Lytic polysaccharide monooxygenases (LPMOs) are copper-containing metalloenzymes that can cleave the glycosidic link in polysaccharides. This could become crucial for production of energy-efficient biofuels from recalcitrant polysaccharides. Although LPMOs are considered oxygenases, recent investigations have shown that H2O2 can also act as a co-substrate for LPMOs. Intriguingly, LPMOs generate H2
[NiFe] hydrogenases catalyse the reaction H2 <-> 2H(+) + 2e(-). Several states of the enzyme have been observed by spectroscopic methods. Among these, the two most oxidized states, called the unready Ni-A and Ni-SU states, have been especially intriguing, because they take a much longer time to activate than the corresponding ready Ni-B and Ni-SI states. It has recently been suggested that the unr
The influence of different preparation methods on the physicochemical properties of amorphous solid forms have gained considerable attention, especially with recent publications on pharmaceutical polyamorphism. In the present study, we have investigated the possible occurrence of polyamorphism in the drug celecoxib (CEL) by investigating the thermal behavior, morphology, structure, molecular mobil
Deep electrification powered by renewable sources has emerged as a pivotal strategy for achieving ambitious CO2 emission reduction targets. However, the true impact of electrification on decarbonization remains inadequately measured because the whole energy chain has not yet been fully considered. This study combines Societal Exergy Accounting and Logarithmic Mean Divisia decomposition analysis to
As the world gears up for the Net Zero carbon emissions, demand for raw materials is set to skyrocket as they are key elements of global economy and they have essential roles in improvement of life quality and the performance of manufacturing productivity. The various conventional treatment methods, including physical, chemical, and biological processes, may become outdated and may generally be re
While Raman spectroscopy provides opportunities for simultaneous detection and quantitative analysis of multiple species, it also suffers from certain limitations, such as low signal strength, which often makes it unsuitable for the study of minor species. The present work employs a high-repetition-rate and high-power laser and re-introduces an amplification technique to improve the detection limi
Syftet med uppsatsen var att söka förståelse för ett företag i energibranschens interna employer brand. Uppsatsen ska ligga som grund för företagets utvecklande av en employer branding strategi. Employer branding strategin ska byggas från ett internt perspektiv som gäller för hela företaget, samt även vara styrt efter vissa kritiska målgruppers preferenser. Uppsatsen sökte även ökad förståelse föThe aim of this essay was to explore the internal employer brand within a company in the energy industry. This study will be the stepping stone from which the company will further develop their employer brand strategy. The employer branding strategy should be influenced by the preferences of the employees. Additionally, our study examined what makes an employer attractive in general and more spe
The objective of this thesis was to perform multidisciplinary sensitivity and uncertainty analysis of the building parameters integrating thermal comfort, energy and daylight. The case study of a Danish office building was used for performing the simulations. The study evaluated the suitability of developed methodology for further usage in the early design stages of the building projects. A litera
