Sökning: "flöde vatten"

Visar resultat 6 - 10 av 143 uppsatser innehållade orden flöde vatten.

1. 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)

   Författare :Mhd Osman Bernieh; [2023]
   Nyckelord :Nozzle geometry; bubble formation; water tank model; bubble flow; Munstycksgeometri; bubbelbildning; vattentankmodell; bubbelflöde;

   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

3. 7. Freight Transport in the Car-Free City : Towards a more sustainable urban freight sector

   Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

   Författare :Melisa Marta; [2023]
   Nyckelord :Car-free city; sustainable urban freight transport; urban consolidation center; cargo bicycles;

   Sammanfattning : Freight transport of goods is an indispensable part of everyday life. Without it there would be no delivery of products such as food, water, construction material, technology, furniture, clothes and society, as we know it today, would collapse.  However, there are more and less sustainable ways of transporting goods. LÄS MER

4. 8. Effects of summer peaks on brown trout and Atlantic salmon growth and survival in hydropower-regulated Gullspång River

   Kandidat-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

   Författare :Oscar Hallberg; [2023]
   Nyckelord :hydropeaking; hydropower; fish; salmon; salmo salar; salmo trutta; summer; survival; growth; parr; fry; korttidsreglering; vattenkraft; salmonid; salmo salar; salmo trutta; tillväxt; överlevnad; lax; öring;

   Sammanfattning : Daily demands for electrical power are met through sub-daily release of turbined water in the form of hydropeaking. Hydropeaking’s changes to stream flow are listed as a threat to biodiversity in river ecosystems as it causes rapid habitat alteration such as increased depth and velocity, affecting the species living downstream. LÄS MER

5. 9. Gravity water waves over constant vorticity flows: from laminar flows to touching waves

   Master-uppsats, Lunds universitet/Matematik (naturvetenskapliga fakulteten); Lunds universitet/Matematikcentrum

   Författare :Francisco Gonçalves Jorge Dias de Carvalho; [2023]
   Nyckelord :Partial differential equations; Water waves; Euler equations; Free boundary problem; Bifurcation theory; Nonlinear functional analysis; Hilbert transform; Mathematics and Statistics;

   Sammanfattning : 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

7. 10. Analys av textilproduktion och återvinning med fokus på miljöhållbarhet

   Kandidat-uppsats, KTH/Skolan för industriell teknik och management (ITM)

   Författare :Sami Hagos; [2023]
   Nyckelord :Textile industry; sustainability; textile production; Synthetic; fibers; environment; circular economy; recycling; reuse; Textilindustri; hållbarhet; textilproduktion; Syntetiska; fibrer; miljö; cirkulär ekonomi; återvinning; återanvändning;

   Sammanfattning : Textilindustrin är en global växande resursintensiv industri som medför stora miljö och klimatförändringar. Den största delen av de negativa miljöeffekterna uppstår i samband med produktionen eftersom det vid produktion krävs stora mängder resurser och råvaror. LÄS MER