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N,N-diphenyl carbazolium salt has attracted interest for applications in anionic exchange membranes (AEM) due to its structural features and the high chemical stability that the compound exhibit. AEM are polymeric membranes with positively charged functional groups. They can be employed as electrolytes in alkaline fuel cells. In this project, different types of N,N-diphenyl carbazolium compounds w
This report describes a part of the product development process for a mechanical adjustment of the head pressure in an extruder at Tetra Pak. The pressure is adjusted by a valve that increases or decreases the pressure by moving a valve stem. In the current solution the valve stem is moved by hand, which will no longer be effective when Tetra Pak streamlines the extruder. The project also includes
A mathematical model for through drying of paper at constant pressure drop was developed. The model is based on physical properties; hence, basis weight, pressure drop, drying air temperature, pore size distribution, initial gas fraction, and tortuosity are important input parameters to the model. The model was solved for different combinations of the variables basis weight, drying air temperature
Background: Parents of children with complex right ventricular outflow tract (RVOT) anomalies are con-fronted with their child’s need for heart surgery early in life and repeated reoperations later on. Preoperative assessment needs to be performed whenever an indication for reoperation is suspected. The aim was to illuminate the experiences of parents of children diagnosed with RVOT anomalies, in
Världen behöver ställa om till en cirkulär ekonomi och asfalt är en produkt som är 100 procent återvinningsbar. Hanteringen börjar redan när beläggningen skall fräsas eller rivas. Genom att optimera denna process, kan asfalten återvinnas mer effektivt. Syftet med denna studie är att studera vad som förekommer med returasfalten när den fräses och vilka styrparametrar som asfaltfräsen kan påverka fö
By use of a batch microcalorimeter of the thermopile type, heat production was measured in isolated populations of human peripheral blood cells exposed to defined immune complexes formed in vitro. It was found that most of the heat production recorded in whole blood after admixture of immune complexes occurs in the granulocytes. Under these conditions small but constantly higher activation values
I dagens samhälle står ungdomarna inför flera problem i deras liv. För att handskas med dessa väljer ungdomarna olika sätt. Vid vissa tillfällen kan detta leda till att ungdomarna begår oönskade handlingar ur samhällets synpunkt. Genom att söka sig till gäng och därigenom leta efter svar på de problem som de ställs inför leds många ungdomar in i ett asocialt leverne. För att förhindra våra ungdomaIn today's society young people are faced with several problems in their lives. Young people choose different ways to deal with these. At times this can lead to young people committing undesirable actions from the society's point of view. By seeking to gangs and thus looking for the answers to the problems they faced led many young people into an anti-social lifestyle. In order to prevent
Gravida och ammande_riskbedömning Occupational health services Risk assessment-Pregnant and breastfeeding women Date 2025-01-08 File number: 1 (7) Risk assessment - identifying and eliminating risks in the work environment for pregnant, postpartum and breastfeeding workers and students. This document is based on the Swedish Work Environment Authority's regulation AFS 2023:2, Chapter 7 and the regu
Color is the most obvious and easily determined soil property that can provide crucial information about soil composition. The NIX™ Pro color sensor (Nix) presents a user-friendly alternative to the traditional Munsell manual method, with reduced sensitivity to environmental and human factors. Therefore, a new method was developed to use Nix in combination with machine learning to quickly and affo
Despite an overwhelming scientific consensus that climate change poses severe risks to human and natural systems, many young Canadian adults do not view it as a major issue. We analyzed secondary science curricula in each province for their coverage of climate change according to six core topics: physical climate mechanisms (“It’s climate”), observed increase in temperature (“It’s warming”), anthr
