Sökning: "x-rays"

Visar resultat 21 - 25 av 191 avhandlingar innehållade ordet x-rays.

1. 21. Studies on high brightness electron beams for short pulses and free electron laser

   Författare :Sara Thorin; Lunds universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; bunch compression; sub-ps pulses; X-rays; High brightness electron beam; free electron laser; electron accelerator; collective effects.;

   Sammanfattning : Accelerator based lightsources are one of the most powerful tools today for producing high intensity radiation at very short wavelengths. While synchrotron storage rings provide a high average brilliance in a wide wavelength range, the next generation of lightsources aim towards producing ultra-short pulses in the X-ray regime. LÄS MER

3. 22. Structural studies of ba3-type cytochrome c oxidase using serial crystallography and X-ray absorption spectroscopy

   Författare :Doris Zoric; Göteborgs universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; ba3-type cytochrome c oxidase; structural biology; X-rays; serial X-ray crystallography; X-ray absorption spectroscopy; enzyme reaction dynamics;

   Sammanfattning : Cytochrome c oxidase (CcO) catalyses the reduction of molecular oxygen to water while the energy released in this process is used transport protons “up-hill” across an energy transducing biological membrane, creating a proton-motive force for ATP synthesis. Given its key role in energy transduction in organisms, proton pumping has been extensively studied across species. LÄS MER

4. 23. Response to X-rays in Drosophila melanogaster populations with different irradiation backgrounds

   Författare :Andrievs Eiche; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : .... LÄS MER

5. 24. Nondestructive measurement of spiral grain with X-rays in laboratory and in industry

   Författare :Paul Sepúlveda; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Träteknik; Wood Technology;

   Sammanfattning : Wood is a biological material with great variability. Every piece of wood is a unique individual. This is an advantage of wood when it is used in products where the wood structure is visible but a drawback in the manufacturing process. LÄS MER

7. 25. 1D to 3D Magnetism in Quantum Materials: A study by Muons, Neutrons & X-rays

   Författare :Ola Kenji Forslund; Martin Månsson; Robert Kiefl; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; muon; magnetism; scattering; quantum materials; Material and Nano Physics; Material- och nanofysik;

   Sammanfattning : A collection of works stretching from low- to three-dimensional magnetism are presented, studied mostly through muon spin rotation, relaxation and resonance (µ +SR). The theoretical background of this technique is outlined in Chapter 2, which introduces the subject from the muon particle as an astro[1]nomical particle to how they are produced here on Earth. LÄS MER