Essays about: "Directionality"

Showing result 1 - 5 of 24 essays containing the word Directionality.

  1. 1. Risk Assessment for Space Debris Collisions

    University essay from KTH/Lättkonstruktioner, marina system, flyg- och rymdteknik, rörelsemekanik

    Author : Kenny Andersson; [2023]
    Keywords : space debris; NASA standard breakup model; satellite fragmentations; satellite fragmentation modelling; space surveillance and tracking; ESA MASTER; collision risk; risk assessment; space situational awareness; rymdskrot; NASA standard breakup model; satellitfragmentering; modellering av satellitfragmentering; inmätning och övervakning av rymdobjekt; ESA MASTER; kollisionsrisk; riskbedömning; rymdlägesbild;

    Abstract : The increasing reliance on space infrastructure and its rapid expansion necessitate the development and enhancement of tools for space debris and fragmentation research. Accurate prediction of the risks associated with satellite fragmentation requires comprehensive understanding of the dynamics involved. READ MORE

  3. 2. Multi-Scale Topology Optimization of Lattice Structures Using Machine Learning

    University essay from Uppsala universitet/Tillämpad mekanik

    Author : Julia Ibstedt; [2023]
    Keywords : Topology optimization; Multi-scale topology optimization; Machine learning; Gaussian process; Homogenization; Inverse homogenization; Anisotropic materials; Symmetry groups; Material property space; Topologioptimering; Flerskalig topologioptimering; Maskininlärning; Gaussian process; Homogenisering; Anisotropa material; Symmetrigrupper; Materialegenskapsrymd;

    Abstract : This thesis explores using multi-scale topology optimization (TO) by utilizing inverse homogenization to automate the adjustment of each unit-cell's geometry and placement in a lattice structure within a pressure vessel (the design domain) to achieve desired structural properties. The aim is to find the optimal material distribution within the design domain as well as desired material properties at each discretized element and use machine learning (ML) to map microstructures with corresponding prescribed effective properties. READ MORE

  4. 3. The role of policy frameworks on strengthening intermediaries in the "New Space" market

    University essay from Handelshögskolan i Stockholm/Institutionen för företagande och ledning

    Author : Anastasios Mastroanastasiou; [2022]
    Keywords : New Space; Entrepreneurship; Mission-oriented-policies; Public-Private-Partnerships; Intermediaries;

    Abstract : The space industry belongs to one of the most innovative industries and has provided us with great technologies that are used in our daily lives. The past decade the space industry has undergone a significant decrease in launching costs because of the reusability of the launching capabilities. READ MORE

  5. 4. Shedding light on Energy Communities-Policy challenges towards a high share of Energy communities in Greece

    University essay from Lunds universitet/LUCSUS

    Author : Konstantinos Pantazis; [2022]
    Keywords : Energy Community; Energy Justice; Socio-technical transition; Energy Policy; Sustainability science; Social Sciences;

    Abstract : In 2018 Greece enacted the Energy Communities (EC) Law which promotes energy democracy and Justice. Although there are several successful examples of ECs in Greece, they are far from becoming mainstream as they face many problems. I used the policy challenges framework provided by Busch et. all. READ MORE

  6. 5. Exploring the Role of Adolescents’ Co-Rumination With Mothers and Friends: Longitudinal Associations With Depressive Symptoms

    University essay from Örebro universitet/Institutionen för juridik, psykologi och socialt arbete

    Author : Charlotte Berg; Sanna Lindsten; [2021]
    Keywords : co-rumination; depressive symptoms; gender; adolescents; peers; mothers; longitudinal study; regression analysis;

    Abstract : Co-rumination is a communication process that has been linked to depressive symptoms among adolescents. The first aim of this study was to examine the directionality of the associations, regarding co-rumination with peers and mothers, as well as comparing co-rumination about the mothers’ and the adolescents’ problems. READ MORE