Search for dissertations about: "Koncentration"

Showing result 1 - 5 of 222 swedish dissertations containing the word Koncentration.

  1. 1. Office type, performance and well-being : A study of how personality and work tasks interact with contemporary office environments and ways of working

    Author : Aram Seddigh; Hugo Westerlund; Erik Berntson; Fredrik Jönsson; Eva Vingård; Stockholms universitet; []
    Keywords : SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; Office type; open-plan office; flex office; cell office; performance; job satisfaction; distraction; self-rated health; well-being; cognitive stress; exhaustion; individual differences; personality; concentration; stim-ulus screening ability; memory; Kontorstyp; kontorslandskap; flexkontor; cellkontor; produktivitet; arbetstillfredsställelse; distraktion; självskattat hälsa; trivsel; kognitiv stress; utmattning; individuella skillnader; personlighet; koncentration; arbetsminne; psykologi; Psychology;

    Abstract : Today, many organisations are adopting offices that have an open design with or without flexible seating. While advocates of open-plan offices propose that these office types lead to cost savings and aid inter and intra-team communication, opponents argue that these office types are associated with decreased performance and worsened health among employees. READ MORE

  2. 2. Development of Concentrating Photovoltaic-Thermal Solar Collectors

    Author : João Gomes; Björn O. Karlsson; Mats Rönnelid; Göran Lundgren; Heimo Zinko; Högskolan i Gävle; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Solar Energy; Photovoltaic-Thermal PVT ; Concentration; Collector Testing; Silicon Cell Encapsulation; Ray Tracing; Market Survey; String Layout; Prototype Collectors; Solenergi; Fotovoltaisk-termisk PVT ; Koncentration; Solfångarprovning; Inkapsling av kiselceller; Strålgångsberäkning; Marknadsundersökning; Strängdesign; Solfångarprototyper;

    Abstract : Fossil fuels have greatly improved human living standards and saved countless lives. However, today, their continued use threatens human survival, as CO2 levels rise at an unprecedented pace to levels never seen during human existenceon earth. READ MORE

  3. 3. Dicke narrowing and speed-dependent effects in dispersion signals : Influence on assessment of concentration and spectral parameters by noise-immune cavity-enhanced optical heterodyne molecular spectrometry

    Author : Junyang Wang; Ove Axner; Livio Gianfrani; Umeå universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Dicke narrowing; Speed-dependent effects; Dispersion signals; Noise-immune cavity-enhanced optical heterodyne molecular spectrometry NICE-OHMS ; accuracy;

    Abstract : Laser spectroscopic techniques have, during the last decades, demonstrated an extraordinary capability for sensitive detection of molecular constituents in gas phase. Since spectra from such techniques constitute unique and characteristic signatures for each type of species, these techniques enable investigations of molecular structures as well as detection of the presence of species in a gas mixture. READ MORE

  4. 4. Experimental Studies on Ambient Aerosol Hygroscopicity

    Author : Erik Fors; Kärnfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Fysicumarkivet A:2011:Fors;

    Abstract : The air around us is full of aerosol particles which originate from a myriad of sources and which have vastly different chemical and physical properties. These particles span size ranges from 1 nm to 100 μm, equivalent to a factor 100 000 in diameter difference and a factor 10^15 in volume difference. READ MORE

  5. 5. Particle concentrations : analysis methods for urban runoff

    Author : Kerstin Nordqvist; Luleå tekniska universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; VA-teknik; Urban Water Engineering;

    Abstract : Urban runoff often contains high concentrations of particles. Pollutants that adsorbs to surfaces of particulate material will be transported to receiving waters or a sewage treatment plant. For the recipient, the particles in the runoff are a significant cause of water quality impairment. READ MORE