Sökning: "deceleration"

Visar resultat 1 - 5 av 64 uppsatser innehållade ordet deceleration.

  1. 1. Cosmological Constraints for a Varying Dark Energy Model

    Kandidat-uppsats, Umeå universitet/Institutionen för fysik

    Författare :Abdullah Alsakka; [2023]
    Nyckelord :Astronomy; Varying Dark Energy; Distances;

    Sammanfattning : This paper uses the Pantheon+ data set that consists of 1701 light curves of 1550 unique type IaSupernova to find constraints on various cosmological models and compare them with a varying darkenergy model proposed by Chevallier, Polarski and Linder in the early 2000s and analyze it deeper.The results show a tipping point from a decelerating universe to an accelerating one at a redshift ofz = 0. LÄS MER

  3. 2. Measuring Athletic Performance UsingAccelerometers

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysik

    Författare :Adam Nilsson; [2023]
    Nyckelord :;

    Sammanfattning : With help from a 3D-camera Photon Sports has developed reliable and easy-to-use technology tomeasure and give feedback to athletes during performance tests. This technology makes it possibleto directly extract a number of parameters Key Performance Indicators (KPIs). LÄS MER

  4. 3. Analysis and time calculations of NC files : Time calculation of Nailing Bridge machine movements

    Kandidat-uppsats, Högskolan i Halmstad/Akademin för informationsteknologi

    Författare :Julia Rohnér; Emelie Sköld; [2023]
    Nyckelord :CNC-Machines; NC files; time calculations;

    Sammanfattning : Randek is a company that develops machines. The machines are used to build prefabricated houses. They have developed a CNC machine called Nailing Bridge that creates house walls. One of their issues is that they must predict the time it takes to build a wall because their customers need to know how long it takes to deliver their house. LÄS MER

  5. 4. Design and Evaluation of an Automated Pyro Cutter System for Stratospheric Balloons

    Master-uppsats, Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Författare :Leia Nummisalo; [2023]
    Nyckelord :Stratospheric balloons; PCB; Recovery system; CNES; pyro cutter;

    Sammanfattning : This thesis describes the development of an autonomous recovery system for stratospheric balloons, focusing on the novel pressurised balloon prototype BALMAN of CNES. Stratospheric balloons, reaching altitudes of up to 40 km, are utilised for scientific experiments, with recovery of payloads being a critical aspect. LÄS MER

  7. 5. Analysis of free-riding behaviour using instrumented bicycles

    Master-uppsats, Linköpings universitet/Kommunikations- och transportsystem; Linköpings universitet/Tekniska fakulteten

    Författare :Jonathan Johansson; [2023]
    Nyckelord :Data collection; instrumented bicycle; free-riding; conventional bicycle; electric bicycle; naturalistic data;

    Sammanfattning : The use of bicycle as a transportation mode has increased in popularity during the last four decades. The reasons that could explain why the use of bicycles have increased in popularity are many. LÄS MER