Essays about: "sigma model"

Showing result 16 - 20 of 70 essays containing the words sigma model.

1. 16. The spatial distribution of dark matter in the Universe

   University essay from Lunds universitet/Astronomi - Genomgår omorganisation

   Author : Tamina Lund; [2020]
   Keywords : dark matter halos; NFW profile; curve fitting; Bayesian inference; least Squares; data uncertainties; Physics and Astronomy;

   Abstract : It was previously found that the density profile of dark matter halos is well-fit by a universal, smooth function over a vast range of masses and redshifts, named the Navarro-Frenk-White (NFW) profile after its discoverers. Despite its impressive goodness of fit, the NFW model remains an approximation of the density profile of realistic halos. READ MORE

3. 17. Manufacturing process re-engineering of a production line through Industry 4.0 to obtain the best quality and reduced wastes: the case in projection welding

   University essay from Blekinge Tekniska Högskola/Institutionen för maskinteknik

   Author : Mattias Ghanem; [2020]
   Keywords : Lean; Process Engineering; Digitalization; Projection Welded Elements; Industry 4.0;

   Abstract :   Background This research study is in collaboration with the Blekinge Institute of Technology and Volvo Cars Body Components (VCBC). VCBC is a car manufacturer that manufactures car body components in Olofström, Sweden. READ MORE

4. 18. Smart Plug – Optimization of design and material regarding environmental aspects : Mechanical design of an environmentally friendly Smart Plug

   University essay from Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

   Author : Nadia Samson; [2020]
   Keywords : ;

   Abstract : A Smart Plug is a remote-controlled power socket that allows the user to, through an app, control any appliances that is plugged into the outlet. Since not all appliances are constructed with a smart function, the usage of a Smart Plug can be beneficial to facilitate the everyday life. READ MORE

5. 19. Characterization of the Spin of Dark Matter at the LHC

   University essay from Uppsala universitet/Högenergifysik

   Author : Tom Ingebretsen Carlson; [2019]
   Keywords : ;

   Abstract : The potential for characterizing the spin and mass of dark matter at the Large Hadron Collider (LHC) given a 5 sigma confidence level discovery has been studied. The search for dark matter is one of the big open question in particle physics as observations predict 84 percent of the matter in the universe to be dark matter, however no detection has been made. READ MORE

6. 20. Chi-Squared Analysis of Measurements of Two Cosmological Parameters Over Time

   University essay from Uppsala universitet/Observationell astrofysik

   Author : Timothy Faerber; [2019]
   Keywords : Cosmology Chi Squared Hubble Constant Amplitude of Mass Fluctuations Statistical Analysis;

   Abstract : For this project, a historical statistical analysis of the Amplitude of Mass Fluctuations ($\sigma_8$) and Hubble's Constant ($H_0$) parameters in the Standard Cosmological Model was carried out to determine whether or not the given error bars truly represent the dispersion of values. It was found through analysis of the Chi-Squared ($\chi^2$) values of the data that for $\sigma_8$ (60 data points and $\chi^2$ between 183. READ MORE