Sökning: "Diffraction theory"

Visar resultat 6 - 10 av 100 avhandlingar innehållade orden Diffraction theory.

1. 6. Cutting Through Water : Towards a Posthuman Theory of Educational Relationality

   Författare :Simon Ceder; Pedagogik; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; diffraction; educational relationality; humanism; intra-relationality; posthumanism;

   Sammanfattning : Based on an ongoing debate—academic as well as public—regarding the roles of the teacher and the student in education, this thesis explores educational relations within the field of philosophy of education. After critically examining intersubjective approaches to theories of educational relations, I localize anthropocentrism and subject-centrism (teacher/student) as two problematic aspects of the aforementioned approaches. LÄS MER

3. 7. Becoming Together and Apart : technoemotions and other posthuman entanglements

   Författare :Eva Svedmark; Erik Stolterman; Anna Croon Fors; Pelle Ehn; Umeå universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Technoemotions; Feminist technoscience; Posthuman theory; Onto-epistemology; Diffraction; Norm-breaking; Digital dirt; Privacy; Sharing; Self-disclosure; Stickiness; computer and systems sciences; data- och systemvetenskap;

   Sammanfattning : Using social media and norm-breaking material as an empirical touchstone this thesis elaborates, investigates and explores the entangled relationships between humans and technology in social media settings. Guided by uncomfortable, emotional and bodily online sharing the thesis gives voice to stories that are seldom heard, by people whose lives are rarely spoken of. LÄS MER

4. 8. Gudinnefeminister : Monica Sjöös och Starhawks berättande - subjektskonstruktion, idéinnehåll och feministiska affiniteter

   Författare :Magdalena Raivio; Ulf Mellström; Claudia Lindén; Karlstads universitet; []
   Nyckelord :HUMANIORA; HUMANITIES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Goddess feminism; Monica Sjöö; Starhawk; eco feminism; religion; new religious movements; religious studies; gender studies; feminist theory; feminist historiography; discourse analysis; narrativity; diffraction; Religious Studies and Theology; Religionsvetenskap;

   Sammanfattning : This thesis examines the discursive position of 'goddess feminism', in relation to some of the difference- and eco feminist positions from the1960s and until today. In focus are the texts of the two goddess feminists, Monica Sjöö and Starhawk. The thesis contributes to a historiographical (re)situating of their political and religious narratives. LÄS MER

5. 9. Simulations of Biomolecular Fragmentation and Diffraction with Ultrafast X-ray Lasers

   Författare :Christofer Östlin; Carl Caleman; Nicusor Timneanu; Helmut Grubmüller; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; X-ray free-electron laser; X-ray imaging; Single particle imaging; Computer simulation; Radiation damage; Molecular dynamics; Diffraction theory; Coulomb explosion; Sample heterogeneity; Diffractive noise; XFEL; SPI; Physics with specialization in Biophysics; Fysik med inriktning mot biofysik;

   Sammanfattning : Studies of biomolecules have recently seen substantial developments. New X-ray lasers allow for high-resolution imaging of protein crystals too small for conventional X-ray crystallography. Even structures of single particles have been determined at lower resolutions with these new sources. LÄS MER

7. 10. Electromagnetic simulation and design of etched diffraction grating demultiplexers

   Författare :Jun Song; Sailing He; Dries Van Thourhout; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; etched diffraction grating; wavelength division multiplexing; passive devices; diffraction grating; planar waveguide devices; DWDM; optical communication.; Photonics; Fotonik;

   Sammanfattning : Among various planar lightwave circuits for multiplexing/demultiplexing in an optical communication system, etched diffraction gratings (EDGs) have shown great potential due to their compactness and high spectral finesse. Conventional numerical methods for grating simulation cannot be used to simulate an EDG demultiplexer of large size (in terms of the wavelength). LÄS MER