Search for dissertations about: "koncentration"

Showing result 1 - 5 of 205 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; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; 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. 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

    University dissertation from Umeå : Umeå Universitet

    Author : Junyang Wang; Ove Axner; Livio Gianfrani; [2013]
    Keywords : 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

  3. 3. Experimental Studies on Ambient Aerosol Hygroscopicity

    University dissertation from Umeå : Umeå Universitet

    Author : Erik Fors; [2011]
    Keywords : 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

  4. 4. Particle concentrations analysis methods for urban runoff

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Kerstin Nordqvist; [2010]
    Keywords : 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

  5. 5. Fouling of Ultrafiltration Membranes due to Adsorption of a fatty acid

    University dissertation from Chemical Engineering, Lund University

    Author : Jeanette Lindau; [1998]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ultrafiltration Fouling Adsorption Characterisation ESCA FTIR SEM-EDX Ellipsometry Cleaning Capillary condensation; Chemical technology and engineering; Kemiteknik och kemisk teknologi;

    Abstract : A study of fouling of ultrafiltration membranes due to adsorption of a fatty acid in the membrane matrix has been done. Octanoic acid was used as a model substance. READ MORE