Sökning: "diffraction method"

Visar resultat 1 - 5 av 322 avhandlingar innehållade orden diffraction method.

1. 1. 3D Electron Diffraction : Application and Development towards High-quality Structure Determination

   Författare :Yunchen Wang; Wei Wan; Xiaodong Zou; Junliang Sun; Mauro Gemmi; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; three-dimensional electron diffraction; structure determination; rotation electron diffraction; Inorganic Chemistry; oorganisk kemi;

   Sammanfattning : Electron crystallography has been proven to be effective for structure determination of nano- and micron-sized crystals. In the past few years, 3D electron diffraction (3DED) techniques were used for the structure solution of various types of complex structures such as zeolites, metal-organic frameworks (MOF) and pharmaceutical compounds. LÄS MER

3. 2. Exploiting reciprocal space : Electron diffraction, textures and precession

   Författare :Peter Oleynikov; Sven Hovmöller; Xiaodong Zou; Jean-Paul Morniroli; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; electron crystallography; electron diffraction; texture patterns; precession electron diffraction; Inorganic chemistry; Oorganisk kemi;

   Sammanfattning : Electron crystallography emerges as a new tool for accurate structure determination of very small crystals. In order to exploit the full potential of electron diffraction, the methods for data acquisition and processing have to be developed towards the high standards of X-ray crystallography. LÄS MER

4. 3. Studies on Fantasmical Anatomies

   Författare :Anne Juren; André Lepecki; Sandra Noeth; Victoria Perez Royo; Stockholms konstnärliga högskola; []
   Nyckelord :HUMANIORA; HUMANITIES; Choreography; Feldenkrais Method®; anatomy; fantasmical; speculative gestures; somatic practices; dislocation; dissection; dissociation; treatment; operation; fragmentation; blind gaze; non-expression; dance; movement; language; poetry; voice; touch; Foley; psychoanalysis; crisis; encounter; critical awareness; sensorial transference; co-regulation; body proxy; trans-interiority; symptom; practitioner; patient; session; lesson; L’Effet-Mère; mother tongue; very too close; very too far; diffraction; dérive drift ; Utbildning på forskarnivå i performativa och mediala praktiker; Third-Cycle Studies in Performative and Mediated Practices;

   Sammanfattning : Studies on Fantasmical Anatomies is an ongoing transdisciplinary artistic research, which encompasses the spectrum of experiences and practices that I have developed as a choreographer, dancer and Feldenkrais practitioner. My interest in anatomy and somatic practices grew out of multiple shoulder dislocations. LÄS MER

5. 4. Optical properties and helicity in liquid crystals

   Författare :Anders Dahlgren; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; de Vries formula; smectic A*; smectic helix; Poincaré sphere; homeotropic alignment; chiral; light switch; birefringence; electroclinic; diffraction method; indicatrix; phase grating; helial pitch; snisotropy; liquid crystals; smectic C*; handedness; book-shelf geometry; Cano method; ferroelectric; biaxiality; dielectric tensor;

   Sammanfattning : .... LÄS MER

7. 5. 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