Sökning: "loads"

Visar resultat 21 - 25 av 1719 uppsatser innehållade ordet loads.

1. 21. Load-velocity profiles as a predictor of performance level in swimming : What differentiates international elite swimmers from national elite – force capacity or efficiency?

   Master-uppsats, Gymnastik- och idrottshögskolan, GIH/Institutionen för fysiologi, nutrition och biomekanik

   Författare :Maria Vitazka; [2023]
   Nyckelord :Load-Velocity; Force-Velocity; Force Capacity; Swimming; Biomechanics; Performance indicators; International elite; swimming performance; 1080 Sprint; 1080 Motion; Semi-tethered force measurements; tethered force measurements; maximum velocity; load; force; swimming efficiency;

   Sammanfattning : Aim  The purposes of this study were to investigate if the load-velocity (L-V) profile parameters – force capacity and efficiency - differ between swimmers of different performance level, and to investigate if efficiency is the key performance indicator between international elite and national elite level swimmers.  Method  Fifty-four swimmers (27 female and 27 male) of either regional level, national elite or international elite level, participated in this study. LÄS MER

3. 22. Reinforcement learning for EV charging optimization : A holistic perspective for commercial vehicle fleets

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

   Författare :Enzo Alexander Cording; [2023]
   Nyckelord :Deep Reinforcement Learning; EV charging optimization; Artificial Intelligence; Commercial vehicle fleets; Electric vehicles; Deep Reinforcement Learning; optimering av elbilsladdning; artificiell intelligens; kommersiella fordonsflottor; Elektriska fordon;

   Sammanfattning : Recent years have seen an unprecedented uptake in electric vehicles, driven by the global push to reduce carbon emissions. At the same time, intermittent renewables are being deployed increasingly. These developments are putting flexibility measures such as dynamic load management in the spotlight of the energy transition. LÄS MER

4. 23. Optimizing the Performance and Efficiency of District Heating Substations : A Study of the Cooling Process and Overall System Improvements in Ludvika

   Kandidat-uppsats, Högskolan Dalarna/Institutionen för information och teknik

   Författare :Marwan Ali; Eema Sheykhi Narani; [2023]
   Nyckelord :Energy efficiency in multi-family buildings; District heating efficiency; Sustainability; District heating control; Cooling process;

   Sammanfattning : The concept of future sustainability is driving efforts toward the efficient improvement of energy systems. District heating systems play a key role in balancing the energy system by improving performance and flexibility. LÄS MER

5. 24. Environmental Testing of Large Components

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

   Författare :Kenan Güler; Myriam Tenace; [2023]
   Nyckelord :battery packs; large electric components; random vibration; sine sweep; vibration testing.; batteripacken; random vibration; sinus sweep; stora elektriska komponenter; vibrationstestning.;

   Sammanfattning : As the industry is being reshaped concentrically around sustainability, the consumption of fossil fuels is targeted to decrease day by day. As a consequence of that, a righteous rise of electricity as energy source prevails in different branches of industry. LÄS MER

7. 25. Multiscale & Multiphysics Modelling of Thrust Pad (Air) Bearings

   Master-uppsats, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Författare :Nipon Roy; [2023]
   Nyckelord :Finite element modelling; Air bearing; Multiphysics simulations; Air lubrication; surface texture; Topology optimization;

   Sammanfattning : Without lubrication, machines are not imaginable to perform over a long period of time and complete their designated operations. With its omnipresent availability, the air is capable of functioning as a lubricant in long operations very efficiently. Moreover, thrust bearings support axial loads and transmit power at the same time under heavy loads. LÄS MER