Essays about: "Spinning"

Showing result 1 - 5 of 84 essays containing the word Spinning.

1. 1. Production of textile fibres from filamentous fungi grown on apple pomace : invertase pre-treatment

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

   Author : Sofia Berg; [2023]
   Keywords : apple pomace; invertase; fibres; filamentous fungi; dry gel spinning;

   Abstract : In this work Rhizopus Delemar was grown on an apple pomace medium, a waste product from the juice industry. The apple pomace was pre-treated with the enzyme invertase to hydrolyse the sucrose available in the waste to glucose and fructose, which are digestible by the fungus. READ MORE

3. 2. Wet Spinning of Cellulose-Lignin Precursor for Carbon Fibers : Effect of Coagulation Bath Composition & Spin Finish

   University essay from Uppsala universitet/Tillämpad mekanik

   Author : Julia Sundmark; [2023]
   Keywords : Carbon fiber; Cold alkali; Cold NaOH; lignin; cellulose; wet spinning; Kolfiber; kallalkali; lignin; cellulosa; våtspinning;

   Abstract : Carbon fibers (CF) are a material with a composition of over 90% carbon, which has high mechanical properties and low density. This unique combination of properties makes it requirable in applications such as vehicles, aerospace, wind power, and space industries. Commercially made CF are made using the fossil raw material polyacrylonitrile (PAN). READ MORE

4. 3. Error propagation in nuclear models

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

   Author : Artis Mucenieks; [2023]
   Keywords : Physics and Astronomy;

   Abstract : In this thesis we perform error analysis of a nuclear model based on density-functional theory developed in Lund. The Lund model allows us to perform calculations of nuclear spectra more efficiently by constructing a simple effective Hamiltonian reproducing the quadrupole deformation and pairing interaction strength parameters of a spherical Hartree-Fock reference functional. READ MORE

5. 4. Evaluation of Numerically Developed Models of an ECB for Estimating the Braking Torque on the SkiCrosser

   University essay from KTH/Skolan för industriell teknik och management (ITM)

   Author : Filip Andersson; William Marin; [2023]
   Keywords : ;

   Abstract : Cross-country skiing is a popular method of exercising that builds strength, stamina and engages the entire body. As cross-country skiing requires snow to be present, it is typically only performed during the winter, resulting in a rather limited way of exercising. READ MORE

6. 5. A Photogrammetric Workflow to Produce 3D-Models of Geological Samples

   University essay from Uppsala universitet/Mineralogi, petrologi och tektonik

   Author : Fanny Bjugger; [2023]
   Keywords : photogrammetry; S-f-M; digital 3D models; geoscience; rock samples; earth sciences;

   Abstract : Photogrammetry and Structure-from-Motion (S-f-M) is a low-cost method of producing digital 3D models of rock samples that can be used for many different research and educational purposes. A 3D model of a delicate rock sample would enable the preservation of the sample and reduce the need of physical manipulation. READ MORE