Sökning: "matter and its properties"

Visar resultat 1 - 5 av 120 uppsatser innehållade orden matter and its properties.

1. 1. Decay Chains of Fast Alpha Emitters in the Actinide Region

   Magister-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Partikel- och kärnfysik

   Författare :Tanvir Sayed; [2024]
   Nyckelord :alpha decay; alpha emissions; fine structure; decay chain; decay scheme; alpha spectrometry; actinide; nucleus; nuclear structure; nuclear states; energy levels; uranium isotopes; U310 experiment; parasitic runs; decay station; TASISpec ; moving window deconvolution; digitisers; alpha-gamma coincidence; 221-Th decay; fine structure of alpha decay to 217-Ra; GSI; Gamow s theory; Geiger-Nuttall; chain search; short half-lives; Physics and Astronomy;

   Sammanfattning : With the advent of increasingly advanced spectroscopic instruments after the turn of the century, it has become accessible to unravel the structure of instantly ‘vanishing’ nuclei, with lifetimes as short as 1 μs, and responsible for pile-up events in analog electronics. Experimental data has been recorded by the Nuclear Structure Group at Lund University for 48Ca/50Ti + nat. LÄS MER

3. 2. Flame retardant treated wood : An investigation into phytic acid and its ability to act as a flame retardant agent

   Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Byggkonstruktion och brand

   Författare :Mattias Ström; Herman Paulusson; [2023]
   Nyckelord :Flame-retardant; Phytic acid; Wood;

   Sammanfattning : Flame-retardant coatings have been serving their purpose since the romans ruled Europe. These products have been developed through the years, by mixing and synthetizing solutions, which have resulted in effective, although questionable, products due to their impact on the environment and our health. LÄS MER

4. 3. A Borel-Cantelli lemma for non-stationary dynamical systems

   Master-uppsats, Lunds universitet/Matematik LTH

   Författare :Teodor Åberg; [2023]
   Nyckelord :Borel-Cantelli lemmas; Dynamical systems; Mathematics and Statistics;

   Sammanfattning : In this thesis we present a Borel–Cantelli lemma for dynamical systems such that the dynamics driving the system varies with time. These results are largely based on a decomposition of transfer operators produced by Rychlik. Some limitations on the structure of sequences that is necessary for the results is given some discussion. LÄS MER

5. 4. Z2-Gauge Theory with Matter : Dispersive behaviour of a dimer in a 1+1-dimensional lattice

   Kandidat-uppsats, Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik (from 2013)

   Författare :Filip Ekblom; [2023]
   Nyckelord :Spin chain; Ising model; Dimer; Lattice; Lattice gauge theory;

   Sammanfattning : The intention with this thesis is to investigate a dimer in a spin chain. Inorder to do that, a model from Z2-gauge theory is taken as the theoretical motivation to construct a discrete lattice with Ising spin properties. A dimer is then allowed to exist indirectly in the empty space between sites. LÄS MER

7. 5. The development of an acoustic insulation solution using mushroom mycelium as an alternative to synthetic foams

   Magister-uppsats, Jönköping University/JTH, Industridesign

   Författare :Adrián Brito Guerrero de Escalante; [2023]
   Nyckelord :mycelium composites; design thinking; design for emotion; sustainability; acoustic insulation; fungi; mushrooms.;

   Sammanfattning : In the past decades, humanity is facing the consequences of the irresponsible production of plastics and the expansion of industries such as industrial agriculture, Therefore, the development of new sustainable alternative materials has become increasingly popular as a science field. That is the case of mycelium composites, a biodegradable material made out of agricultural and the thread-like roots of mushrooms called mycelium. LÄS MER