Essays about: "Liv Walker"

Found 2 essays containing the words Liv Walker.

1. 1. Spherically Symmetric Gravitational Collapse

   University essay from Lunds universitet/Teoretisk partikelfysik - Geonomgår omorganisation

   Author : Lucas Bring; [2021]
   Keywords : gravitational collapse; gravitation; general relativity; black hole; Schwarzschild coordinates; Gullstrand-Painleve coordinates; Friedmann-Robertson-Walker metric; finite-time collapse; Physics and Astronomy;

   Abstract : This thesis presents a derivation of the equation of motion of particles in a dust star, as it undergoes collapse. This is done by finding exact solutions to the Einstein field equations. We follow the original work by Oppenheimer and Snyder, starting from the general spherically symmetric metric in comoving coordinates. READ MORE

3. 2. The applicability of agricultural fibres in industrial cleaning cloths : in the aspects of processability and sustainability

   University essay from Högskolan i Borås/Akademin för textil, teknik och ekonomi

   Author : Liv Walker; Karin Essén; [2020]
   Keywords : Nonwoven; Industrial cleaning cloth; Agricultural fibres; Bast fibres; Polyester; Single-use; Nonwoven; Industriella rengöringsdukar; Naturliga fibrer; Bastfibrer; Polyester; Engångsartiklar;

   Abstract : This study has its background in the EU directive, the ‘Single-Use Plastics Directive’. The directive was initiated due to the environmental impacts that the oceans suffer due to plastic waste. The directive presents the most common single-use products found as waste in the oceans, including wipes and cloths. READ MORE