Essays about: "retarded"

Showing result 1 - 5 of 14 essays containing the word retarded.

1. 1. Electrodynamic field at spatial infinity

   University essay from KTH/Fysik

   Author : Jakob Myhrman; [2022]
   Keywords : Spatial infinity; Conformal rescaling; Minkowski space; Penrose Diagram; Einstein universe; Newman-Penrose formalism; Sigma-process; Resolution of singularities; Maxwell s equations; Cylinder at spatial infinity; Rumslig oändlighet; Konform omskalning; Minkowski rummet; Penrose Diagram; Einsteins universum; Newman-Penrose formalismen; Sigma-processen; Singularitetupplösning; Maxwells ekvationer; Cylindern vid rumslig oändlighet;

   Abstract : The treatment of spatial infinity is one of the remaining major open problems in the theory of isolated self-gravitating systems. Especially when one wants to model scattering of gravitational radiation in spacetime. In this thesis the conformal theory is used to study simple electromagnetic fields, close to spatial infinity. READ MORE

3. 2. Acid retardation : recovery and recycling of acid and metal

   University essay from Luleå tekniska universitet/Industriell miljö- och processteknik

   Author : Cecilia Bood; [2020]
   Keywords : Acid retardation; Ion exchange; Pickling; Stainless steel;

   Abstract : During the production of steel, an oxide scale is formed on the surface and to achieve anadequate quality of the surface the scale needs to be removed. Acid pickling is a surfacetreatment where the oxide scale is removed by acid. READ MORE

4. 3. Entanglement production in a quantum heat engine

   University essay from Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Matematisk fysik; Lunds universitet/Fysiska institutionen

   Author : Elias Nyholm; [2020]
   Keywords : Physics and Astronomy;

   Abstract : Entanglement production is one of the properties of interest when studying nanoscale systems. Not only does entanglement between subsystems hints at other non-classical behaviour and effects that may be of interest to applications; the resource of entangled systems themselves is one on which many future devices and protocols may depend on. READ MORE

5. 4. Development of a Method to Measure Residual Stresses in Cast Components with Complex Geometries

   University essay from KTH/Materialvetenskap

   Author : Yang Yang; [2020]
   Keywords : Residual Stresses; Cast Iron; Engine Components; XRD; Ultrasonic; Cutting;

   Abstract : Cast iron, taking the advantages of the advanced castability forming components of complex geometries and favorable mechanical properties, is employed in engine components in truck industries. Compacted graphite iron (CGI) integrates both merits of lamellar graphite iron (LGI) and spheroidal graphite iron (SGI) such as good machinability and high thermal conductivity from LGI, high ultimate tensile strength (UTS), good fatigue resistance, high elastic modulus, and high ductility from SGI, thus is now becoming a competitive alternative of traditional LGI in cylinder blocks and heads. READ MORE

6. 5. Allelopatiska egenskaper av tomatidin och andra alkaloider från potatisväxter

   University essay from SLU/Department of Plant Biology (from 140101)

   Author : Lukas Hallberg; [2017]
   Keywords : Allelopati; Tomatidin; Alkaloider; Steroler;

   Abstract : Alkaloids are a heterogeneous group of secondary metabolites in plants with toxic attributes. These substances often have toxic effects on different organisms and are found in many species of the nightshade family (Solanaceae). READ MORE