Search for dissertations about: "Free fiber length"
Showing result 1 - 5 of 13 swedish dissertations containing the words Free fiber length.
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1. Micromechanics of Fiber Networks
Abstract : The current trends in papermaking involve, but are not limited to, maintaining the dry strength of paper material at a reduced cost. Since any small changes in the process affect several factors at once, it is difficult to relate the exact impact of these changes promptly. READ MORE
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2. The effects of cellulosic fiber charges on polyelectrolyte adsorption and fiber-fiber interactions
Abstract : The surface charges of cellulosic fibers contribute to several papermaking operations that influence the manufacture and final properties of paper. This thesis investigates the effect of the surface charges on wet-end chemistry, e.g. READ MORE
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3. Fiber-laser-based noise-immune cavity-enhanced optical heterodyne molecular spectrometry
Abstract : Noise-immune cavity-enhanced optical heterodyne molecular spectro-metry (NICE-OHMS) is one of the most sensitive laser-based absorption techniques. The high sensitivity of NICE-OHMS is obtained by a unique combination of cavity enhancement (for increased interaction length with a sample) with frequency modulation spectrometry (for reduction of noise). READ MORE
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4. Laser-based absorption spectrometry : development of NICE-OHMS towards ultra-sensitive trace species detection
Abstract : Laser-based absorption spectroscopy (AS) is a powerful technique for qualitative and quantitative studies of atoms and molecules. An important field of use of AS is the detection of species in trace concentrations, which has applications not only in physics and chemistry but also in biology and medicine, encompassing environmental monitoring, regulation of industrial processes and breath analysis. READ MORE
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5. Inorganic and organic polymer-grafted nanoparticles : their nanocomposites and characterization
Abstract : Nanocomposites (NCs) have been widely studied in the past decades due to the promising properties that nanoparticles (NPs) offer to a polymer matrix, such as increased thermal stability and non-linear electrical resistivity. It has also been shown that the interphase between the two components is the key to achieving the desired improvements. READ MORE