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Showing result 1 - 5 of 9 essays matching the above criteria.

1. 1. Material parameter study for aheavy-vehicle exhaust manifoldusing the finite element method : to increase component lifetime and decrease its environmental impact

   University essay from Linköpings universitet/Konstruktionsmaterial

   Author : David Ek; [2019]
   Keywords : Thermomechanical fatigue; TMF; material parameter study; finite element method; FEM;

   Abstract : The thesis originates from a need to meet stricter environmental regulations for Scania, to reduce fuel consumption and emission from heavy-vehicles. Scania aims to fulfil these requirements by increasing combustion pressure and temperature. These conditions are tougher for the engine components and they shorten their lifetime. READ MORE

3. 2. Flygmekanik i sidledsmanöver hos Svartvit flugsnappare (Ficedula hypoleuca)

   University essay from Lunds universitet/Examensarbeten i biologi

   Author : Ludwig Nilsson; [2019]
   Keywords : Biology and Life Sciences;

   Abstract : There is not much research done regarding maneouvering flight on Birds. What has been done surrounding the area usually involves steady flight and not maneuvering. For the most part studies concern bats, insects or hummingbirds. READ MORE

4. 3. Tidsförskjutning mellan häst och ryttares rörelser vid ridning

   University essay from SLU/Dept. of Clinical Sciences

   Author : Martina Hagerlind; [2019]
   Keywords : häst-ryttarinteraktion; fasförskjutning; ridning; häst; ryttare;

   Abstract : Ett av dressyrens huvudmål är att skapa harmoni mellan häst och ryttare, och en förutsättning för detta är att ryttaren har en välbalanserad och följsam sits. Syftet med detta arbete var att utreda i vilken utsträckning ryttare rör sig i harmoni med hästen under ridning, det vill säga om ryttarens rörelser följer hästens utan större fasförskjutning, liksom om det förekommer en tidsförskjutning mellan hästens olika kroppssegments vertikala rörelser vid ridning i nedsutten trav. READ MORE

5. 4. Investigation into the Loess-Palaeosol and Red Clay Record from the Pliocene- Quaternary Chinese Loess Plateau Using In-Phase and Out-OfPhase Magnetic Susceptibility

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Rebecca Jacobson; [2018]
   Keywords : loess; Chinese Loess Plateau; magnetic susceptibility; out-of-phase; viscous relaxation; lössjord; Kinesiska Lössjordsplatån; magnetiska känsligheter; ur-fas; viskös relaxation;

   Abstract : Loess is a well sorted, fine grained, windblown (aeolian) sediment and deposits as a blanket over large areas, reaching from a few centimetres to several hundreds of meters in height and can drape large landscapes in form of mountains. During a more humid and warmer climate, redox conditions are changed in the loess deposits, with greater seasonal moisture creating greater soil formation (pedogenesis), i. READ MORE

6. 5. Effect of dwell time on stress intensity factor of ferritic steel for steam turbine applications

   University essay from Linköpings universitet/Mekanik och hållfasthetslära

   Author : Ahmed Azeez; [2018]
   Keywords : ;

   Abstract : In the transition from conventional to green energy production resources, steam turbines are used to satisfy the lack of energy during peaks in the demand times and the limited access of renewable resources. This type of usage for steam turbines makes them operate on a flexible schedule, which leads to unpredictable issues related to shorter component life and faster crack propagation. READ MORE