Essays about: "flaskhals"

Showing result 21 - 25 of 52 essays containing the word flaskhals.

  1. 21. Investigation of Hybrid Simulation Methods for Evaluation of EMF Exposure in Close Proximity of 5G Millimeter-Wave Base Stations

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : David Anguiano Sanjurjo; [2020]
    Keywords : 5G; base station; EMF exposure; hybrid simulation method; millimeter wave;

    Abstract : With the emergence of Fifth Generation (5G) mobile networks, the employment ofhigher frequencies in the millimeter-wave (mmWave) range and the realization of agreat number of beams in 5G radio base stations (RBS) make the electromagnetic (EM)simulation of RBS products very costly in terms of hardware and time requirements.In order to compute the electromagnetic field (EMF) exposure in close proximity of theRBS, more efficient simulation methods are required. READ MORE

  3. 22. Bison bonasus : återuppbyggnaden av en nästan utrotad art

    University essay from SLU/Dept. of Animal Environment and Health

    Author : Morgan Daleryd Sjöblom; [2019]
    Keywords : visent; europeisk bison; Bison bonasus; genetik; återintroduktion;

    Abstract : Visent eller den europeiska bison är en art som efter första världskriget hade dött ut i det vilda på grund av jakt. Endast 54 djur från arten återstod i fångenskap och det är från dessa anfäder som dagens bestånd av både vilda och visenter i fångenskap härstammar. READ MORE

  4. 23. Techno-economic analysis of mobile battery storage systems to utilize curtailed wind energy in Germany for off-grid applications

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Muhammad Bilal Siddique; [2019]
    Keywords : Wind energy curtailment; Energy storage; Mobile battery storage; Germany; Vindkraftsnedskärning; Energilagring; Mobil batterilagring; Tyskland;

    Abstract : The increasing share of renewable energy especially wind energy leads to increased share of unpredictable and varying energy into the grid. This leads to congestion in the grid which ultimately results in wind curtailment. In Germany in 2015 alone more than 4000 GWh of wind energy was curtailed. READ MORE

  5. 24. Simulation of solidification and cooling of a casting product using COMSOL Multiphysics

    University essay from Lunds universitet/Institutionen för energivetenskaper

    Author : Tom Allen; [2019]
    Keywords : Heat transfer; casting; phase change; COMSOL Multiphysics; Technology and Engineering;

    Abstract : In this project, the cooling and solidification processes for a Valmet Foundry product have been simulated in order to shorten the cooling time. The study has also been done in cooperation with RISE Swecast in Jönköping, as a part of finding ways to make casting procedures more energy efficient. READ MORE

  6. 25. Superquadrics Augmented Rapidly-exploring Random Trees.

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : YARED EFREM AFEWORK; [2019]
    Keywords : Superquadrics; RRT; GJK; Collision Detection.; Superquadrics; RRT; GJK; Kollisionsdetektering.;

    Abstract : This thesis work investigated the advantages and disadvantages of using superquadrics (SQ) to do the collision-checking part of the Rapidly-exploring Random Trees (RRT) motion planning algorithm for higher Degree of Freedom (DoF) motion planning, comparing it with an established proximity querying method known as the Gilbert-Johnson-Keerthi (GJK) algorithm. In the RRT algorithm, collision detection is the main bottleneck, making this topic interesting to research. READ MORE