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Dissertations / Theses on the topic 'Absorption'

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1

Morrow, Heather. "Shock absorption." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape9/PQDD_0016/MQ54662.pdf.

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2

Eriksson, Patrik. "Akustikavskärmning och absorption." Thesis, Gotland University, Institutionen för humaniora och samhällsvetenskap, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:hgo:diva-547.

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<p>Det här är ett projekt i industriell design som gick ut på att lösa ett problem. Projektet var ett samarbete med kontors- och utbildningsmöbelföretaget Abstracta. Problemet var att det på arbetsplatser idag lätt blir högljutt och bullrigt, speciellt i öppna kontorslösningar. För att ta fram en produkt som löser problemet gjordes undersökningar och analyser av marknaden, kunden, användaren, akustik och material. Det utgjorde grunden för en idégenerering som resulterade i ett koncept, som sedan vidareutvecklades till en serie akustikabsorbenter. Absorbenternas utseende speglar en ljudvågs avt
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3

Webb, J. K. "QSO absorption lines." Thesis, University of Cambridge, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234000.

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The absorption lines found in the spectra of distant quasars provide a unique method of probing the physical conditions in the universe at early epochs. This thesis describes a study of the Lyman alpha forest absorption systems seen in the spectra of high redshift QSOs. The Anglo-Australian Telescope has been used to obtain high resolution spectra of several bright QSOs. Considerable effort has gone into developing statistical techniques for profile fitting to the data to objectively and reliably extract the parameters associated with each absorbing cloud. The distribution functions for these
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4

Outram, Philip James. "QSO absorption systems." Thesis, University of Cambridge, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.624575.

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5

Currie, John S. "Absorption heat recovery." Thesis, University of Edinburgh, 1994. http://hdl.handle.net/1842/13527.

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Industrial drying operations are highly energy intensive, usually utilising a primary energy source to provide the necessary heat for the production of a wide range of materials. The use of hot air as the heat and mass transfer medium leads to a resultant loss of energy through the venting of humid exhaust streams. An absorption heat transformer pilot plant was designed and constructed to investigate the potential of recovering this waste heat. Using a two stage cycle, simulated dryer exhaust streams were successfully dehumidified and reheated. The first stage of the transformer employed a dir
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6

Kaufman, Sarah K. "Moments of Absorption." VCU Scholars Compass, 2008. http://scholarscompass.vcu.edu/etd/1133.

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Moments of Absorption explores the conceptual and visual themes that are presented in my MFA thesis exhibition. The research looks into the absorption of the nude subject, the gestures that communicate this absorption, and the domestic space as a stage for the presentation of these gestures. This work investigates a tension between the theatrical and the natural as represented by images.
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7

Kouneli, Athina. "CO2 absorption in power plants : Emphasizing on CO2 absorption in biphasic solvent." Thesis, Högskolan i Gävle, Avdelningen för bygg- energi- och miljöteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-21842.

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Carbon dioxide, the famous and vital to life gas, is also an important greenhouse gas. Since the combustion of fuels leads to the production of carbon dioxide it had to be expected that since the industrial revolution the concentration of carbon dioxide in the atmosphere was to be rapidly increased. When the consequences and the causes of the greenhouse effect were understood, serious efforts were made by the global community to reduce the greenhouse gases production and CO2 among them. The Kyoto Protocol, an international agreement linked to the United Nations Framework Convention on Climate
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8

Wright, Cody LeForge. "Evaluation of Absorption and Post-Absorptive Metabolism of Inorganic and Organic Zinc Sources." NCSU, 2001. http://www.lib.ncsu.edu/theses/available/etd-20010302-152709.

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<p>A series of experiments was conducted to examine the absorption and post-absorptive metabolism of zinc (Zn) from inorganic and organic sources. Results of an in vivo experiment, using Holstein bull calves as models, suggested that, when Zn was supplemented at 20 mg Zn/kg DM for 98 d, Zn source had minimal impact on plasma or tissue Zn concentrations. However, when Zn was supplemented at 500 mg Zn/kg DM for 12 d, plasma and tissue Zn concentrations were greater in bulls that received Zn proteinate (ZnProt) than in those that received ZnSO and Ca only, uptake and transport of Zn from inorgani
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9

Bohn, Torsten. "Magnesium absorption in humans /." [S.l.] : [s.n.], 2003. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=14930.

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10

Wirth, Adrian. "Attosecond transient absorption spectroscopy." Diss., lmu, 2011. http://nbn-resolving.de/urn:nbn:de:bvb:19-140120.

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11

Alalwan, Tariq Abdulkarim Ebrahim. "Absorption of Dietary Flavonoids." Thesis, University of Leeds, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.491922.

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Flavonoids represent a major class of plant polyphenols that are distributed ubiquitously in the human diet. Interest in the possible health-promoting effects of flavonoids has increased due to their various bioactive properties, as demonstrated in several in vitro and in vivo studies. Knowledge about flavonoid absorption and bioavailability is essential in order to fully understand their potential health benefits. This thesis was concerned with the uptake and absorption of dietary flavonoids in humans, with an emphasis on the effect of the chemical form of the flavonoid (as a product of proce
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12

L'Écuyer, Tristan Simon. "Water dimer atmospheric absorption." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/mq24864.pdf.

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13

Arita, Yoshihiko. "Multi-mode absorption spectroscopy." Thesis, University of Oxford, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.489407.

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A novel approach to absorption spectroscopy is presented which achieves, simultaneously, wide spectral coverage and high spectral resolution. The principle of the technique - dubbed multi-mode absorption spectroscopy (MUMAS) - is described, and demonstrations of the principle are reported using two multi-mode sources: diode lasers and micro-cavity solid state lasers. The technique is shown to have potential for the detection of multiple species and multiple parameters using a single laser and a single detector.
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14

Jones, Arfon Lloyd. "Pulmonary absorption of insulin." Thesis, Cardiff University, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327930.

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15

Ridout, G. "Percutaneous absorption of drugs." Thesis, University of Nottingham, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.373320.

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16

Wong, Choong Wah. "An absorption recompression system." Thesis, University of Nottingham, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.320018.

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17

Wilson, Kevin Earl. "Pion absorption on ³He." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/36007.

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18

Rauch, Michael. "Lyman alpha absorption systems." Thesis, University of Cambridge, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.260453.

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19

Treffel, Pierre. "Absorption percutanee : nouvelles approches." Besançon, 1992. http://www.theses.fr/1992BESA3710.

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20

Transmontano, Raimundo João. "Oral absorption of dermatan sulfate /." [S.l.] : [s.n.], 1992. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=9997.

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21

Kren, Christoph. "Flue gas fired absorption chillers." kostenfrei, 2008. https://mediatum2.ub.tum.de/node?id=965968.

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22

Radtke, Jörg. "Zufuhr und Absorption ausgewählter Flavonoide." [S.l.] : [s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=963446843.

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23

Sjöstrand, Filip, and Reza Yazdi. "Absorption of CO2 : - by Ammonia." Thesis, Växjö universitet, Institutionen för teknik och design, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:vxu:diva-5256.

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In this diploma work, the absorption of CO2 in different liquid solutions was studied by gas absorption in a randomly packed column. To characterize the absorption a few experiments with SO2 absorption were made.The report has resulted due to the large amounts of carbon dioxide released into the atmosphere, mainly from fossil-fired power plants. To reduce these emissions, carbon dioxide can be separated from flue gas by different techniques such as CO2 absorption with ammonia. The work consists of a theoretical and a laboratory part of measurements and calculations. In the experimental part a
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24

Motavas, Saloome. "Optical absorption in carbon nanotubes." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/50121.

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Due to their unique optical properties, carbon nanotubes have been widely investigated for use in photonic and optoelectronic devices and optical absorption and emission with nanotubes have been achieved in experiments. On the other hand, the structural characteristics of nanotubes, e.g. the chirality, diameter, and length, as well as other factors such as the polarization of the incident light, presence of a magnetic field and mechanical deformation can significantly affect the optical properties of these structures. Some of these effects have been theoretically studied at the tight-binding a
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25

Sripanyakorn, Supannee. "Silicon absorption and bone health." Thesis, King's College London (University of London), 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.417265.

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26

Crighton, Neil Physics Faculty of Science UNSW. "Cosmology with Quasar Absorption Lines." Awarded by:University of New South Wales. Physics, 2006. http://handle.unsw.edu.au/1959.4/30178.

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In this thesis we make a new measurement of the primordial deuterium abundance, and analyse five other systems selected as possible D/H candidates. We also undertake an investigation of systematic errors in a system where an existing deuterium measurement has been made. We measure the number of hydrogen components and their velocity distributions in a moderate and high redshift sample of Lyman limit systems in one Angstrom resolution spectra. We present a new measurement of the deuterium-to-hydrogen ratio, D/H, at z=3.2560 in a newly-discovered low metallicity absorption system towards the q
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27

Xia, Qi. "Gas absorption kinetics in STR's." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0032/NQ64694.pdf.

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28

Fischer, Nathan Lee. "Novel composites for microwave absorption." [Ames, Iowa : Iowa State University], 2008.

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29

Watanabe, Akira. "Case absorption and WH-agreement /." Dordrecht [u.a.] : Kluwer Acad. Publ, 1996. http://www.loc.gov/catdir/enhancements/fy0821/96029249-d.html.

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30

Zhang, Changjun. "Seismic absorption estimation and compensation." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/2820.

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As seismic waves travel through the earth, the visco-elasticity of the earth's medium will cause energy dissipation and waveform distortion. This phenomenon is referred to as seismic absorption or attenuation. The absorptive property of a medium can be described by a quality factor Q, which determines the energy decay and a velocity dispersion relationship. Four new ideas have been developed in this thesis to deal with the estimation and application of seismic absorption. By assuming that the amplitude spectrum of a seismic wavelet may be modeled by that of a Ricker wavelet, an analytical r
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31

Falklöf, Olle, and Bo Durbeej. "Modeling of phytochrome absorption spectra." Linköpings universitet, Beräkningsfysik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-92393.

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Phytochromes constitute one of the six well-characterized families of photosensory proteins in Nature. From the viewpoint of computational modeling, however, phytochromes have been the subject of much fewer studies than most other families of photosensory proteins, which is likely a consequence of relevant high-resolution structural data becoming available only in recent years. In this work, hybrid quantum mechanics/molecular mechanics (QM/MM) methods are used to calculate UV-vis absorption spectra of Deinococcus radiodurans bacteriophytochrome. We investigate how the choice of QM/MM methodolo
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32

McFarland, Elizabeth Gramling. "Infrared absorption characteristics of fabrics." Thesis, Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/10185.

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33

Jacob, David. "Analytical analysis of absorption cycles." Thesis, Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/16094.

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34

Bozkurt, Volkan. "Pentlanditepyrrhotite interactions and xanthate absorption." Thesis, McGill University, 1997. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=34703.

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Xanthate interaction with pentlandite and pyrrhotite has been investigated in the case of single and mixed minerals in the presence of Ni ions and depressants such as meta-bisulfite (MBS), diethylenetriamine (DETA) and MBS plus DETA at two pHs controlled by lime and soda ash. It was found that dixanthogen was the main product and the surface concentration was consistently higher on pentlandite than on pyrrhotite. Ni ions enhanced the dixanthogen adsorption on both minerals in the case of single minerals. Mixed mineral experiments (i.e. pentlandite and pyrrhotite together) showed that dixanthog
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35

Xia, Qi 1962. "Gas absorption kinetics in STR's." Thesis, McGill University, 2000. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=36732.

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Experiments were carved out in a stirred tank reactor with both two phase and three phase systems. A systematic examination of the effect of solid particles on parameters such as volumetric liquid-side mass transfer coefficient kLa, specific interfacial area a, gas holdup epsilong, bubble size dB, and average bubble residence time tau, was conducted. Both dimensional and dimensionless correlations were generated and conclusions were drawn.<br>The work was carried out in the context of the industrial experience that stirred tank reactors are widely used in both metallurgical and chemical engine
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36

Jailani, Fadhilah. "Absorption and metabolism of flavonols." Thesis, University of Leeds, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.634526.

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The consumption of flavonols, major sources of dietary flavonoids, have been linked to the reduction of risk factors for various chronic diseases. However, the bioavailability of flavonols would appear to be limited and not all compounds within the same subclass are absorbed with equal efficacy, thus compromising their nutritional relevance. The aim of this current study was to examine the absorption and metabolism of four major flavonols specifically quercetin, myricetin, kaempferol and galangin using both in vitro methods and healthy human volunteers to investigate how bioavailability was af
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37

Zhou, Xin Hua. "Characterisation of drug absorption barrier." Thesis, Queen's University Belfast, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.335622.

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38

Richardson, Julie Lynn. "The vaginal absorption of drugs." Thesis, University of Nottingham, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.277940.

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39

Ashton, P. "Surfactant effects in subcutaneous absorption." Thesis, Cardiff University, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.380198.

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40

Traynor, Matthew John. "Dermal absorption of solvent mixtures." Thesis, University of Newcastle Upon Tyne, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.427345.

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41

Duffield, Roger John. "Direct atomisation furnace atomic absorption." Thesis, University of Leeds, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.236310.

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42

Morgan, Emma Louise. "Intestinal glucose and calcium absorption." Thesis, University of York, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.424573.

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43

Lashmar, U. T. "Vehicle effects on percutaneous absorption." Thesis, Open University, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.370508.

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The availability of a drug from a topical preparation is dependent on many factors, one of the most important being the composition of the vehicle. Glycerol, propylene glycol and polyethylene glycol 200 are widely used as ingredients in topical formulations. The aim of this study was to examine how these glycols affected some of the fundamental factors involved in percutaneous absorption of ethyl- methyl- and glycol salicylate. To do this, certain drug-vehicle, drug-vehicle-skin and vehicle-skin interactions were investigated. Drug-vehicle interactions were evaluated using solubility - and rhe
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44

Ahmadnia, Ali. "Energy absorption of macrocomposite laminates." Thesis, Queen Mary, University of London, 2000. http://qmro.qmul.ac.uk/xmlui/handle/123456789/1342.

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The aim of this project was two-fold. Firstly to provide an understanding of the behaviour of SMC when subjected to drop weight impact and secondly to investigate the effect of a surface layer of a metallic material (stainless steel, aluminium, brass and copper) and a layer of Ionomer on the impact behaviour of SMC. Tensile, flexural, compression, shear, charpy and drop weight impact tests were carried out on SMC (Sheet Moulding Compound). The response of SMC and various combinations of SMC and metal sheet (stainless steel, aluminium, brass and copper) and SMC with a layer of Ionomer to impact
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45

PEREIRA, KARINE RIBEIRO. "SEISMIC ABSORPTION AND CORRECTION METHODS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2015. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=25659@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR<br>PROGRAMA DE SUPORTE À PÓS-GRADUAÇÃO DE INSTS. DE ENSINO<br>Este trabalho tem como objetivo analisar o problema das perdas por absorção dos dados de reflexão sísmica, bem como testar três métodos disponíveis na literatura para sua correção. Utilizamos a modelagem da absorção apresentada por Romanelli Rosa, com a noção de frequência instantânea, e analisamos os seguintes métodos de correção: a Compensação Q, o método de Varela et al. e o método de Duarte, que é um filtro recursiv
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46

JÖNSSON, EMMA. "A comparison of absorption methods." Thesis, Högskolan i Borås, Institutionen Textilhögskolan, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-17480.

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This report is an attempt to find an absorption method that is more suitable for IKEA. Several different methods and standards from around the world are compared to see their pros and cons. The methods are compared both theoretically and practically. The practically comparison is made in a round robin were 14 different fabric is tested in three different methods. Two of the methods in the round robin are compared against each other and the result from a home test to see if the methods can show what the customer experience. The results from the round robin is used to recommend a proper method a
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47

Hageman, Stephen James. "Complex Attosecond Transient-absorption Spectroscopy." The Ohio State University, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=osu1608050018545904.

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48

Fleshman, Matthew Kintz. "β-Carotene Absorption and Metabolism". The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1313548706.

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49

Sanderson, Francis D. "Absorption models of drug delivery." Thesis, Aston University, 1986. http://publications.aston.ac.uk/12457/.

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50

Partridge, Stephen. "The gastrointestinal absorption of lead." Thesis, Aston University, 1986. http://publications.aston.ac.uk/14504/.

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