Sökning: "Dynamic load"
Visar resultat 31 - 35 av 426 uppsatser innehållade orden Dynamic load.
31. Influence of current harmonics on the degradation of the catalyst coated membrane in PEMFC
Master-uppsats, KTH/KemiteknikSammanfattning : Sjöfarten är idag dominerad av förbränningsmotorer som är beroende av fossila drivmedel. Elektrifiering är en av huvudstrategierna för att möjliggöra fossilfri energiförsörjning inom internationell sjöfart. LÄS MER
32. Reliability-Based Sensitivity Analysis of the Dynamic Response of Railway Bridges
Master-uppsats, KTH/Bro- och stålbyggnadSammanfattning : In response to the planned increase in operational speeds and axle loads of passengertrains that may lead to resonance-induced excessive vibrations in railway bridges,recent studies examined the reliability of bridges concerning train running safety andpassenger comfort limit states. In this respect, valuable information regarding theimportance of input variables can be obtained by conducting Sensitivity Analysis (SA). LÄS MER
33. Access Point Selection and Clustering Methods with Minimal Switching for Green Cell-Free Massive MIMO Networks
Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)Sammanfattning : As a novel beyond fifth-generation (5G) concept, cell-free massive MIMO (multiple-input multiple-output) recently has become a promising physical-layer technology where an enormous number of distributed access points (APs), coordinated by a central processing unit (CPU), cooperate to coherently serve a large number of user equipments (UEs) in the same time/frequency resource. However, denser AP deployment in cell-free networks as well as an exponentially growing number of mobile UEs lead to higher power consumption. LÄS MER
34. Spectral density approach for dynamic analysis of high-speed railway bridges
Master-uppsats, KTH/Bro- och stålbyggnadSammanfattning : The focus of this thesis is to introduce the concept of train signature in the spectraldensity approach used in the dynamic analysis of simply-supported railway bridges.Due to the increased transportation demands, longer trains with higher axles loadsand top speeds are being developed. LÄS MER
35. An interactive web tool for importing data to a graph database
M1-uppsats, Luleå tekniska universitet/Institutionen för system- och rymdteknikSammanfattning : As society becomes more data-driven, new alternative technologies to the more traditional relational database model arise. One of these technologies is the graph database model, which stores the data as nodes and edges, where the edges define the relationships between the nodes representing entities. LÄS MER