Sökning: "concatenation"

Visar resultat 11 - 15 av 22 avhandlingar innehållade ordet concatenation.

1. 11. On Woven Convolutional Codes

   Författare :Stefan Höst; Institutionen för elektro- och informationsteknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Automation; iterative decoding; woven convolutional code; cascaded convolutional code; free distance; convolutional code; active distance; robotics; control engineering; Automatiska system; robotteknik; reglerteknik;

   Sammanfattning : Concatenation of several conventional convolutional encoders is a both powerful and practical method to obtain encoding schemes that are attractive for use in communication systems where very low error probabilities are needed. This thesis is devoted to woven convolutional codes, a construction where the constituent codes are woven together in a manner that resembles the structure of a fabric. LÄS MER

3. 12. The Ndengeleko Language of Tanzania

   Författare :Eva-Marie Ström; Göteborgs universitet; []
   Nyckelord :HUMANIORA; HUMANITIES; Ndengeleko; Bantu; Tanzania; Rufiji; phonology; morphology; morpho-phonology; endangered languages; grammar; linguistic description; spirantisation; animacy; conjoint; disjoint;

   Sammanfattning : This dissertation describes the Ndengeleko language of Tanzania, in particular the phonology and morphology in the noun and verb phrase. This Bantu language, spoken by approximately 72,000 people, has not been the subject of any previous linguistic study. LÄS MER

4. 13. Parity check systems, perfect codes and codes over Frobenius rings

   Författare :Thomas Westerbäck; Olof Heden; Patric Östergård; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : This thesis consists of five papers related to coding theory. The first four papers are mainly devoted to perfect 1-error correcting binary codes. The fifth paper concerns codes over finite Abelian groups and finite commutative Frobenius rings. In Paper A we construct a new class of perfect binary codes of length 15. LÄS MER

5. 14. An electrostatic sampling device for point-of-care detection of bioaerosols

   Författare :Laila Ladhani; Wouter van der Wijngaart; Jorma Keskinen; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; electrostatic sampling; bioaerosols; point-of-care; breath sampling; electrostatic precipitation; microfluidic collection; corona discharge; air sampling; non-invasive diagnostics; exhaled breath analysis; on-site detection; aerosol sampling; Electrical Engineering; Elektro- och systemteknik;

   Sammanfattning : Bioaerosols are not only a significant factor of air quality but contribute greatly to the spread of infectious diseases, specifically through expired pathogen-laden aerosols. Clear examples of airborne transmission include: the recent influenza pandemic of 2009, the ongoing tuberculosis epidemic, and yearly norovirus out- breaks, which affect millions of people worldwide and pose serious threats to public healthcare systems. LÄS MER

7. 15. Single-cell methodologies for ecological and metabolic mapping of mixotrophic microeukaryotes

   Författare :Javier Florenza; Stefan Bertilsson; Alexandra Z. Worden; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; mixotrophy; single-cell;

   Sammanfattning : Mixotrophy in aquatic protists is pivotal for our understanding of aquatic microbial food web dynamics. This thesis is centered around aquatic unicellular mixotrophs, and comprises three methodological approaches aimed to tackle mixotroph ecology at single-cell resolution: the identification of actively feeding mixotrophs in natural samples, the determination of specific interactions among mixotrophs and bacterial prey, and the profiling of two distinct mixotrophic populations based on the gene expression of their constitutive individuals. LÄS MER