Essays about: "importance of h..."

Showing result 11 - 15 of 108 essays containing the words importance of h....

1. 11. Parametric Studies of Train-Track-Bridge Interaction : An evaluation of the dynamic amplification due to track irregularities for freight transport

   University essay from KTH/Bro- och stålbyggnad

   Author : Rasmus Elm Dahlman; Emil Lundberg; [2021]
   Keywords : Dynamics; dynamic amplification factor; railway bridge; train-track-bridge interaction; vehicle model; track irregularities; PSD; Dynamisk förstoringsfaktor; dynamik; järnvägsbroar; tåg-spår-bro interaktion; fordonsmodell; spårojämnheter; PSD;

   Abstract : In this thesis a train-track-bridge interaction (TTBI) model is developed in order to study the dynamic amplification from track irregularities on railway bridges traversed by freight trains. These simulations are of great importance since rail freight transport is expected to increase in order to meet the climate goals. READ MORE

3. 12. The influence of diel cycles on the bacterial community composition of two boreal lakes : A case study in Jämtland

   University essay from Uppsala universitet/Limnologi; Uppsala universitet/Institutionen för biologisk grundutbildning

   Author : Sofia Papadopoulou; [2021]
   Keywords : freshwater; lake; diel cycle; bacterioplankton; bacterial community composition;

   Abstract : In the Boreal region, the length of day and night varies extremely over the year and organisms are exposed to different diel (24 h) fluctuations of light and temperature. Among them are pelagic populations of bacteria that are ubiquitous in freshwater ecosystems. READ MORE

4. 13. Towards a high resolution view of infrared line formation

   University essay from Lunds universitet/Astronomi - Genomgår omorganisation

   Author : Martin Schmidt Montelius; [2021]
   Keywords : Spectroscopy; Near infrared; K giants; Galactic archeaology; Galactic chemical evolution; Abundances; Milky Way; Physics and Astronomy;

   Abstract : Observing in the infrared has many benefits, such as seeing through the interstellar dust in the galaxy, easier use of adaptive optics, and better flux ratios for direct observations of exoplanets. Before the infrared spectral range can be utilised for highly accurate stellar spectroscopy there is a need for a better understanding of both stellar modelling and the atomic physics that go into forming spectral lines. READ MORE

5. 14. Numerical Investigation of the Near FieldZone Flow Behavior of Isothermal CornerImpinging Jet Ventilation Using CFD

   University essay from Högskolan i Gävle/Avdelningen för byggnadsteknik, energisystem och miljövetenskap

   Author : Too-chukwu C. Ogbuagu; [2021]
   Keywords : Ventilation; Computational fluid dynamics;

   Abstract : Abstract The impinging jet ventilation's importance in providing better air distribution and energy-efficient operation, as well as both its heating and cooling flexibility potential cannot be overemphasized. This is because acceptable indoor air quality and its environmental conditions are essential to occupant’s wellbeing, comfort, productivity, and improved cognitive function. READ MORE

6. 15. Pipe Surface Roughness at Microscale and Discussion of Possible Relation to Flow Properties

   University essay from Lunds universitet/Avdelningen för Teknisk vattenresurslära

   Author : Yiting Qiao; Mahsa Kajbaf Nezhad; [2021]
   Keywords : pipe flow; roughness; microscale; SEM; Technology and Engineering;

   Abstract : Despite decades of intense research, the behavior of water molecule still warrants new research.Water flow through various pipe systems has become a pivotal corner stone of functioning human infrastructure. READ MORE