Sökning: "Björn Johansson"

Visar resultat 1 - 5 av 68 avhandlingar innehållade orden Björn Johansson.

  1. 1. Distributed resource allocation in networked systems using decomposition techniques

    Författare :Björn Johansson; Mikael Johansson; Daniel Palomar; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Telecommunication; Telekommunikation;

    Sammanfattning : The Internet and power distribution grids are examples of ubiquitous systems that are composed of subsystems that cooperate using a communication network. We loosely define such systems as networked systems. These systems are usually designed by using trial and error. LÄS MER

  2. 2. On Distributed Optimization in Networked Systems

    Författare :Björn Johansson; Mikael Johansson; Asuman Ozdaglar; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; convex optimization; resource allocation; networked systems; peer-to-peer; distributed optimization; Telecommunication; Telekommunikation; Automatic control; Reglerteknik;

    Sammanfattning : Numerous control and decision problems in networked systems can be posed as optimization problems. Examples include the framework of network utility maximization for resource allocation in communication networks, multi-agent coordination in robotics, and collaborative estimation in wireless sensor networks (WSNs). LÄS MER

  3. 3. Oral health-related quality of life and young adults

    Författare :Gunvi Johansson; Björn Söderfeldt; Björn Axtelius; Anna-Lena Östberg; Margareta Strandmark; Högskolan i Halmstad; []
    Nyckelord :MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; ODONTOLOGY; ODONTOLOGI;

    Sammanfattning : The aims were to describe and analyse measures for oral health-related quality of life (OHRQOL) from a Public Health perspective and to determine young adults' views on dental care. The methods used included one literature review (Paper I) and one empirical study with qualitative design (Paper II). LÄS MER

  4. 4. A Study of Some Temporal Properties of the Human Visual Evoked Potential, and Their Relation to Binocular Function

    Författare :Björn Johansson; Peter Jakobsson; Anders Sjöström; Linköpings universitet; []
    Nyckelord :MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; VEP Visual Evoked Potential ; contrast sensitivity; binocularity; latency; Fourier analysis; strabismus; amblyopia; Ophtalmology; Oftalmologi;

    Sammanfattning : As disturbed binocular functions in small children may lead to severe amblyopia it is of interest to detect it as early as possible. Most tests for binocular functions, however, demand active cooperation and may be unreliable in children up to 4-5 years of age. LÄS MER

  5. 5. Analysis of the molecular interplay between Streptococcus pyogenes and its human host

    Författare :Björn Johansson; Infektionsmedicin; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Microbiology; bacteriology; virology; mycology; Biomedicinska vetenskaper allmänt ; Regulation; General biomedical sciences; IdeS; Enzyme; Virulence factors; Virulence; Bacteria; Streptococci; bakteriologi; virologi; mykologi; GAS; Protein; Mikrobiologi;

    Sammanfattning : The common human pathogen Streptococcus pyogenes is the causative agent of numerous mild and severe clinical conditions. It expresses a number of secreted or cell wall-anchored proteins that modulate the human immune system and facilitate colonization and spread of the pathogen in the human host. During S. LÄS MER