Sökning: "Interferometry"

Visar resultat 21 - 25 av 63 uppsatser innehållade ordet Interferometry.

1. 21. Numerical simulation and experimental validation of a manufactured wing profile

   Uppsats för yrkesexamina på grundnivå, Högskolan Väst/Avdelningen för Industriell ekonomi, Elektro- och Maskinteknik

   Författare :Niklas Olsson; Christian Selberg; [2019]
   Nyckelord :Flow; surface roughness; airfoil;

   Sammanfattning : The background for this thesis originates from a study of the flow characteristics for an airfoil of the type NACA0018. The aim for this thesis was to evaluate how the characteristics of the flow over the NACA0018 profile depend on surface roughness. LÄS MER

3. 22. All solid state single-shot Dispersion scan (D-Scan) for ultrashort laser pulses

   Master-uppsats, Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionen

   Författare :Shekhar Jadhav; [2019]
   Nyckelord :Dispersion scan; d-scan; Single shot d-scan; Si-scan; Physics and Astronomy;

   Sammanfattning : Ultrashort laser pulses play an important role in many applications in science and technology, from attosecond science to time resolved spectroscopy and material processing. For applications of ultrashort laser pulses, it requires a complete characterization of the electric field of the pulse, which includes both phase and amplitude of the electric field. LÄS MER

4. 23. Endeavors toward Novel Cochlear Implants from Stretchable Printed Circuit Board Technology

   Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Mikrosystemteknik

   Författare :Rickard Viik; [2019]
   Nyckelord :novel; cochlear; implant; electrode array; electrode; stretchable; soft; electronics; pdms; polydimethylsiloxane; liquid; alloy; galinstan; hearing aid;

   Sammanfattning : Profound sensorineural hearing loss is at the present time a major worldwide health concern, affecting over 5% of the worlds' population. Through cochlear implants (CI), treatment of sensorineural hearing loss now offers the possibility to restore hearing function through electrical stimulation of auditory nerves. LÄS MER

5. 24. Boric acid as a lubricating additive in fuels and in hydraulic oils

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

   Författare :Simon Ström; [2018]
   Nyckelord :Boric acid; tribology; lubricant; fuel; hydraulic oil; additive;

   Sammanfattning : Boric acid based fuel and oil additives were investigated in this study, with the aims to gain a deeper understanding of how the boric acid fuel additive behaves, to investigate the effect of low rates of fuel additive addition and tribofilm longevity, and to investigate how boric acid behaves as a hydraulic oil additive. Fuel additive experiments were performed in a reciprocating sliding rig with a cylinder on flat contact geometry with fuel additive sprayed on the contact repeatedly, whereas the hydraulic oil experiments were performed in a reciprocating sliding rig with a ball on flat contact with the oil and additive present from the start. LÄS MER

7. 25. Residual stresses and distortions in austenitic stainless steel 316L specimens manufactured by Selective Laser Melting

   Magister-uppsats, Högskolan Väst/Avdelningen för svetsteknologi (SV)

   Författare :Henrik Nöbauer; [2018]
   Nyckelord :Residual Stresses; Distortions; SLM; Selective Laser Melting; 316L; X-ray diffraction; XRD; ESPI; Hole drilling;

   Sammanfattning : Residual stresses are one of the major challenges in additive manufacturing of metallic materials today. They are induced during manufacturing because of the rapid local heating and cooling and may cause distortions, cracking and delamination between layers. LÄS MER