Sökning: "Total Lagrangian"
Visar resultat 1 - 5 av 10 uppsatser innehållade orden Total Lagrangian.
1. Signatures of Dark Matter at the LHC : A phenomenological study combining collider and cosmological bounds to constrain a vector dark matter particle model
Master-uppsats, Uppsala universitet/HögenergifysikSammanfattning : Everything that humans have ever touched, created or built something from consists of a type of matter that only makes up 15 percent of the total matter in the universe. The remaining 85 percent is attributed to dark matter, a so far not discovered and non-luminous type of matter. LÄS MER
2. Attitude control using ion thrusters for solar sailing from Low Earth Orbit to sub-L1
Kandidat-uppsats, KTH/Skolan för teknikvetenskap (SCI)Sammanfattning : The purpose of the study is to evaluate the possibility of using gridded ion thrusters as a means of attitude control for a solar sail as a part of the sunshade project, which aims to place 10^8 solar sail sunshade spacecraft, each with an area of about 10 000 m^2, at the Sun-Earth Lagrangian point L1 in order to reduce Earth's global temperature. Two types of solar sail sunshade spacecraft were studied. LÄS MER
3. Wood and moisture-induced strains in a large deformation setting in 3D
Master-uppsats, Linnéuniversitetet/Institutionen för byggteknik (BY)Sammanfattning : Many studies have previously been done on moisture-induced strains in wood. An in- finitesimal/engineering strain model has been used for most of these studies, which is often an accurate approximation for small rotations. However, if large deformations oc- cur, then fictive strains are obtained resulting from the simplified engineering strain. LÄS MER
4. Numerical modeling and experimental investigation of large deformation under static and dynamic loading
Master-uppsats, Linnéuniversitetet/Institutionen för byggteknik (BY)Sammanfattning : Small kinematics assumption in classical engineering has been in the center of consideration in structural analysis for decennaries. In the recent years the interest for sustainable and optimized structures, lightweight structures and new materials has grown rapidly as a consequence of desire to archive economical sustainability. LÄS MER
5. Feasibility study of the implementation of a space sunshade near the first Lagrangian point
Master-uppsats, KTH/RymdteknikSammanfattning : The lack of strong measures to avoid the possible fatal consequences of global warming is pushing researchers to look for other alternatives such as geoengineering.Within geoengineering, this study focuses on the space based solar radiation management methods. LÄS MER
