Sökning: "urea"
Visar resultat 11 - 15 av 137 uppsatser innehållade ordet urea.
11. Influence of hydrogen and carbides on high temperature cracking in cast Inconel
Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Tillämpad mekanikSammanfattning : Hydrogen embrittlement is a well-known source of cracking in metallic mechanical elements. This work studies the influence of hydrogen and carbides on the crack formation in a castnickel-alloy-component in a selective catalytic reduction system. LÄS MER
12. Activity and stability of urease enzyme molecules for on-site urea measurement in milk
Master-uppsats, Linköpings universitet/Sensor- och aktuatorsystemSammanfattning : The nitrogenous metabolite urea is an important biomarker that indicates cows’ nutritional intake. Today, determining the urea concentration from milk samples requires analysis techniques in a lab which is time-consuming and expensive. LÄS MER
13. Gule vekster i Borsökna
Kandidat-uppsats, KTH/ArkitekturSammanfattning : YELLOW AGRICULTURE IN BORSÖKNA By the water in Borsökna there is a culture house as a tribute to the yellow water. A culture house and social meeting place run by urine. The yellow water that visitors and those who work on the site leave behind is stored in tanks as a component to the plants that are grown in the culture house. LÄS MER
14. Investigation into Urea Deposit Risk by varying parameters in the control system related to urea evaporation
Master-uppsats, KTH/KemiteknikSammanfattning : I och med nuvarande och kommande lagkrav för utsläpp från tunga lastbilar finns en efterfrågan på utvecklade strategier för utsläppsminskning. För att kontrollera utsläppen av kväveoxider (NOx) används katalytisk omvandling med AdBlue (vätskeblandning av urea och vatten). LÄS MER
15. Suzuki reactions in novel liquids
Master-uppsats, Linnéuniversitetet/Institutionen för kemi och biomedicin (KOB)Sammanfattning : Non-ionic deep eutectic solvent (ni-DES) possesses various advantages such as good solvation, biodegradability, and non-toxicity which makes it a perfect and environmentally friendly solvent for organic synthesis. A Pd (OAc)2 catalyzed, Suzuki reaction of aryl bromide and N-heteroaryl halide with arylboronic acid in green and novel solvent (ni-DES) is described. LÄS MER