Search for dissertations about: "modulation"

Showing result 16 - 20 of 1377 swedish dissertations containing the word modulation.

  2. 16. Multi-level modulation formats for high-speed optical transmission systems

    Author : Ekawit Tipsuwannakul; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; quadrature amplitude modulation; spectral efficiency; differential detection; modulation format; coherent detection; phase shift keying;

    Abstract : Over the past several years, the use of multi-level modulation formats has enabledsignificant improvements in the field of optical fiber communication, particularlyin terms of per-channel bit-rate (i.e., line-rate) and spectral efficiency (SE), byencoding multiple bits per symbol. READ MORE

  4. 17. Temperature Dependent in situ Studies of two Simple Structure Types Revealing Modulation : or the Art of Making Glitter

    Author : Laura Folkers; Centrum för analys och syntes; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Crystallography; Modulation; Intermetallics;

    Abstract : In the first part of this thesis, three intermetallic compounds are discussed, that were originally thought of as thallium iodide type compounds. Starting from small evidence that there is more than meets the eye, investigations began to find the true structure of AuIn. READ MORE

  5. 18. Modulation of Molecular Properties : Host–Guest Interactions for Structural Analysis and Chemical Reactions

    Author : Sara Norrehed; Adolf Gogoll; Jerker Mårtensson; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; host-guest systems; conformational analysis; NMR spectroscopy; bispidines; porphyrins; Kemi med inriktning mot organisk kemi; Chemistry with specialization in Organic Chemistry;

    Abstract : This thesis concerns the construction, use and modulation of various host–guest systems, from small bispidines for binding of inorganic ions to bisporphyrin clips for supramolecular systems.Small flexible molecules undergo fast conformational movements when in solution. READ MORE

  6. 19. Modulation of retinal progenitors : A bird’s-eye view of retinal regeneration and disease

    Author : Dardan Konjusha; Finn Hallböök; Rusty Lansford; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Developmental neurobiology; Retinoblastoma; MYCN; Cone photoreceptor; Nolz1; Endothelin; Müller cells;

    Abstract : The cell populations of the retina and their intricate organization provide us with one of the most important senses – vision. All retinal cell populations are derived from a common progenitor pool as a result of tight regulation of proliferation, differentiation, dedifferentiation, and programmed cell death. READ MORE

  7. 20. Modulation of neutrophil function : studies on the effects of serum and neutrophil derived components and of hyaluronic acid

    Author : Lena Håkansson; Uppsala universitet; []
    Keywords : MEDICINE; MEDICIN;

    Abstract : .... READ MORE