Sökning: "Simmons"

Visar resultat 1 - 5 av 7 avhandlingar innehållade ordet Simmons.

1. 1. Managing uncertainty in building acoustics : comparisons of predictions with the 12354 standards to measurements

   Författare :Christian Simmons; Eddy Gerretsen; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Technology; Teknikvetenskap; Teknisk akustik; Engineering Acoustics;

   Sammanfattning : The thesis summarizes results of research on the uncertainty of standardized methods applied in the field of building acoustics, with respect to calculations as well as to measurements. Eight published papers are appended to the thesis. LÄS MER

3. 2. Journal bearing design, lubrication and operation for enhanced performance

   Författare :Gregory F Simmons; Rob Dwyer-Joyce; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Maskinelement; Machine Elements;

   Sammanfattning : The increasing introduction of intermittent power sources combined with the de-regulation of electricity markets has led to increased instability in the electrical grid. This has led to increased start-up and shutdown of regulating power sources such as hydro-electric power plants and operation at non-ideal operating states both of which increase the wear and tear on machines. LÄS MER

4. 3. Synthetic lubricants and polymer composites for large full film journal bearings

   Författare :Gregory F Simmons; Patrick De Baets; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Maskinelement; Machine Elements;

   Sammanfattning : The rapid build-up of variable renewable power sources such as wind and solar are leading to increased instability in the electrical grid. Many methods of controlling this instability have been proposed but existing hydroelectric power plants in many cases already been enlisted to fill the regulating power needs of industry and the population. LÄS MER

5. 4. Toward an integrated approach in research on interpersonal violence : Conceptual and methodological challenges

   Författare :Johanna Simmons; Katarina Swahnberg; Barbro Wijma; Staffan Janson; Östergötlands Läns Landsting; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Violence; Abuse; intimate partner violence; Poly-victimization; Re-victimization;

   Sammanfattning : Background: There is a growing understanding that different kinds of interpersonal violence are interrelated. Many victims report experiences of cumulative violence, i.e. LÄS MER

7. 5. Hyperglycaemia during pregnancy : The challenge of screening and deciding diagnostic criteria for gestational diabetes in Sweden

   Författare :Maryam de Brun; Helena Backman; David Simmons; Per Ovesen; Örebro universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; gestational diabetes mellitus; screening; prevalence; maternal and neonatal outcomes; health economic analysis;

   Sammanfattning : Hyperglycaemia during pregnancy is one of the most common complicationsof pregnancy. In 2013, the World Health Organisation recommended diagnostic criteria (WHO-2013) for gestational diabetes mellitus (GDM), whichremains controversial due to an expected increase in prevalence, and the uncertainty as to the clinical relevance of treating these additional women or its cost-effectiveness. LÄS MER