Sökning: "Commercial activity"
Visar resultat 16 - 20 av 156 avhandlingar innehållade orden Commercial activity.
16. On-scalp MEG using high-Tc SQUIDs: Measuring brain activity with superconducting magnetometers
Sammanfattning : This thesis describes work done towards realizing on-scalp magnetoencephalography (MEG) based on high critical temperature (high- T c) superconducting quantum interference device (SQUID) sensors. MEG is a non-invasive neuroimaging modality that records the magnetic fields produced by neural currents with good spatial and high temporal resolution. LÄS MER
17. Muscle composition, reach, physical activity and botulinum toxin treatment in children with cerebral palsy
Sammanfattning : Cerebral palsy (CP), the most common cause of movement disorders and physical disability in children all over the world, is caused by an injury to the developing brain. Although this injury is not progressive, the manifestations of the disorder change as the child ages. LÄS MER
18. Lean NOx reduction over silver-alumina from lab-scale to real conditions - Effects of reducing agent and catalyst composition
Sammanfattning : Lean NOx reduction over silver-alumina from lab-scale to real conditions Effects of reducing agent and catalyst compositionFREDRIK GUNNARSSONApplied surface chemistryDepartment of Chemical and Biological EngineeringChalmers University of TechnologyAbstractThe focus of this work is to increase the understanding of lean NOx reduction over silver-alumina catalysts using hydrocarbons as the reducing agent (HC-SCR), in particular by investigating the effect of silver loading, the role of platinum doping, and the effect of the type of reducing agent. In addition, the effects of aging and hydrothermal treatment on the catalytic activity and selectivity, and the influence of real engine exhausts were investigated, with special attention to the low-temperature activity. LÄS MER
19. Alkylation and Hydrodearomatization over Zeolite cCatalysts
Sammanfattning : The alkylation of aromatic compounds is widely used in the large-scale synthesis of petrochemicals, and a great variety of fine chemicals and intermediates. Acid catalysts used for alkylation of aromatic hydrocarbons are Brønsted acids containing acidic protons. LÄS MER
20. Synthesis of Bioactive Analogues of Marasmane Dialdehydes
Sammanfattning : The modification of drugs into pro-drugs is an attractive concept allowing you to tweak the chemical and physical properties of a drug without changing the original structure of the active compound. In principle, any compound possessing a preferred biological activity can be transformed into a pro-drug. LÄS MER