Sökning: "rent vatten"
Visar resultat 6 - 10 av 229 uppsatser innehållade orden rent vatten.
6. The effect of nozzle geometry on bubble formation : Physical modeling by air in a water tank
Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)Sammanfattning : The bubble flow is used for different application in steel production and refining processes. It plays in indispensable role in the ladle refining process such as for homogenization and inclusion removal. Hence, it is important to understand the effect of the nozzle outlet geometry on the bubble formation. LÄS MER
7. Navigating Legal Waters - A Study of Forcible Measures in Rescue Operations of Migrants and Refugees on the High Seas
Kandidat-uppsats, Lunds universitet/Juridiska institutionen; Lunds universitet/Juridiska fakultetenSammanfattning : Den juridiska frågan om i vilken utsträckning stater får tvångsrädda människor på internationellt vatten, har fått ny betydelse i och med migrationsflödet över centrala Medelhavet. Flera incidenter har visat att det finns såväl strategiska som rent överlevnadsbaserade grunder till att migranter och flyktingar motsätter sig räddning av vissa statsfartyg på Medelhavet. LÄS MER
8. A VVER1000 primary side model in Apros
Master-uppsats, KTH/FysikSammanfattning : Nuclear power plants generate electricity by means of splitting atoms. The basic safety requirements and objectives are to protect the people, society, and the environment from radiological accidents, limit harmful effects of ionizing radiation during operation and take all reasonable practical steps to prevent radiological accidents. LÄS MER
9. Gravity water waves over constant vorticity flows: from laminar flows to touching waves
Master-uppsats, Lunds universitet/Matematik (naturvetenskapliga fakulteten); Lunds universitet/MatematikcentrumSammanfattning : In a recent paper, Hur and Wheeler proved the existence of periodic steady water waves over an infinitely deep, two-dimensional and constant vorticity flow and subject to gravity whose profile overhangs, among which, waves whose surface touches at a point, enclosing a bubble of air. We take this further, proving the existence of a continuous curve of water waves from a laminar flow up to a touching wave for fixed non-zero gravity. LÄS MER
10. Numerical modeling of airflow on the cathode-side of a bipolar flow plate : How the formed geometry affects the pressure drop and flow distribution in a hydrogen fuel cell
Master-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)Sammanfattning : Climate change and rising temperatures is a well-known problem. To tackle global warming a transition from fossil fuels to renewable and reliable energy sources is necessary. Hydrogen, in fuel cells, is proposed to replace diesel and gasoline in the transport sector. LÄS MER