Sökning: "Differential spectrum"

Visar resultat 1 - 5 av 19 uppsatser innehållade orden Differential spectrum.

1. 1. Data Assimilation for Systems with Multiple Timescales

   Kandidat-uppsats, KTH/Skolan för teknikvetenskap (SCI)

   Författare :Dan Vicente Ihanus; [2023]
   Nyckelord :Mathematics; Partial Differential Equations; Numerical analysis; Data assimilation; Numerical weather prediction; Ensemble Kalman Filter;

   Sammanfattning : This text provides an overview of problems in the field of data assimilation. We explore the possibility of recreating unknown data by continuously inserting known data into certain dynamical systems, under certain regularity assumptions. LÄS MER

3. 2. UV Curable Polymers for use in Additively Manufactured Energetic Materials

   Master-uppsats, KTH/Fiber- och polymerteknologi

   Författare :Alexis Delorme; [2022]
   Nyckelord :Additive manufacturing; 3D printing; UV curing; mechanical properties; solid rocket motor; propellant; polymers; depth of cure; Additiv tillverkning; 3D-utskrift; UV-härdning; mekaniska egenskaper; fast-bränsleraketmotor; drivmedel; polymerer; härdningsdjup;

   Sammanfattning : Fast-bränsle-raketer (SRM) har funnit sin plats i en stor mängd tillämpningar sedan deras framkomst mer än 2000 år sedan. En SRMs prestanda är förutbestämd av geometrin av drivmedelskrutet och är begränsad av gjutningsmetoden, som idag främst används i produktion. LÄS MER

4. 3. Modeling The Temperature of a Calorimeter at Clab : Considering a Thermodynamic Model of The Temperature Evolution of The Calorimeter System 251

   Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Tillämpad kärnfysik

   Författare :Johannes Ekman; [2021]
   Nyckelord :calorimetry; calorimeter; System 251; temperature evolution; spent nuclear fuel; SNF; MATLAB; SERPENT2; Clab; nuclear decay heat; calibration measurements; thermodynamic model; gamma escape fraction; mass correction; calibration measurements; electric heater; three component system; system of ordinary differential equations; eigenvalues; eigenvalue estimation; temperature increase method; polynomial approximation of mass correction; sensitivity of mass correction; calorimeter heat capacity; mass correction uncertainty; calorimeter calibration curve; monoenergetic gamma spectrum; curve fitting of temperature as function of time;

   Sammanfattning : It is important to know the heat generated due to nuclear decay in the final repository for spent nuclear fuel. In Sweden, the heating powers generated in spent nuclear fuels are currently measured in the calorimeter System 251 at the Clab facility, Oskarshamn. LÄS MER

5. 4. Targeting the epigenetic state of refractory and relapsing acute myeloid leukaemia

   Master-uppsats, Högskolan i Skövde/Institutionen för biovetenskap

   Författare :Ojong Tabi Ojong Besong; [2021]
   Nyckelord :;

   Sammanfattning : Acute myeloid leukaemia (AML) is a heterogeneous group of myeloid lineage malignancies arising from a spectrum of mutations. AML is characterized by the uncontrolled proliferation of clonal cells, which are unable to properly differentiate into mature myeloid cells. LÄS MER

7. 5. On two-component Bose-Einstein condensates in a ring

   Kandidat-uppsats, Lunds universitet/Matematik (naturvetenskapliga fakulteten)

   Författare :Marcus Sköld; [2019]
   Nyckelord :Mathematics and Statistics;

   Sammanfattning : A Bose-Einstein condensate is a type of gas consisting of one or more types of particles called bosons which are cooled to a temperature very close the absolute zero. Under these conditions the particles all start to occupy their lowest quantum state. LÄS MER