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Dissertations / Theses on the topic 'CHEMICAL COMPOSITION OF SOIL'

Author: Grafiati

Published: 11 September 2023

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1

Campbell, Duncan J. "The chemical composition of soil solutions extracted from top soils in the Oxford area : the magnitude and range of variability." Thesis, University of Oxford, 1985. http://ora.ox.ac.uk/objects/uuid:e70e0323-8383-45f2-91f5-9cb2c26b5008.

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Although the soil solution lies at the centre of many of the processes which occur in soils, little information is available on the chemical composition of the soil solutions of field soils, or on the temporal and spatial variability of such solutions. The suitability of an immiscible fluid centrifugation method for obtaining samples of the soil solution was evaluated. The method was found to be substantially free from interferences and well suited to routine use. It was adapted for use with soils of low bulk density. Yields of soil solution from soils at or near field capacity ranged from 20

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2

Saito, Hiroshi Harlan. "Effects of temperature and heating rate on off-gas composition and pyrene removal from an artifically-contaminated soil." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/11060.

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3

Munzur, Basak. "Chemical Composition Of Atmospheric Particles In The Aegean Region." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/12609373/index.pdf.

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Daily aerosol samples were collected at the &Ccedil<br>andarli which is located on Aegean coast of Turkey. A rural site was selected to monitor atmospheric pollution by long range transport. Sampling was performed in both summer and winter seasons, and in total 151 samples were obtained. Concentrations of elements in the samples were measured in order to identify sources and possible source locations of pollutants. Measured concentrations of trace elements at the &Ccedil<br>andarli station were compared with those measured at various sites around the world and, also in Turkey. As a result of

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4

Furtado, Francisca Mirlanda Vasconcelos. "Feature soil, growth and chemical composition of grass in tifton fertilization and irrigation of aquaculture with wastewater." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=15397.

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CoordenaÃÃo de AperfeÃoamento de Pessoal de NÃvel Superior<br>This work was carried out to evaluate the effects of nitrogen fertilization in areas of irrigated pastures with biofertilizados effluents from fish farming. Four doses of nitrogen fertilizer were used for 3 cycles of Tifton-85 grass cut every 28 days and irrigated with wastewater from fish farming. After each cutting the grass was fertilized with the respective doses of fertilizer. The design was completely randomized in a factorial 2 x 4 with four replicates. Four doses of nitrogen fertilizer dose corresponded to 0 to N; 198 kg N h

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5

Mofokeng, Motiki Meshack. "Growth, yield and chemical composition of Pelargonium sidoides DC. in response to nitrogen and soil water management." Diss., University of Pretoria, 2015. http://hdl.handle.net/2263/50704.

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Pelargonium sidoides DC. is one of many medicinal plant species that are harvested in the wild. The current trade in these medicinal plants has negatively affected their distribution in the wild due to unsustainable harvesting. The demand for medicinal plants is unlikely to decrease, but sustainability of the supply is questionable. This is because commercial exploitation threatens to deplete their populations, resulting in many species being considered vulnerable to extinction and being lost from their natural habitat. Increased demand, which is already too high to be met by sustainable harve

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6

Nchabeleng, Lehlohonolo. "Effects of different climatic and soil factors at different locations on chemical composition of bush tea (Athrixia phylicoides DC.)." Thesis, University of Limpopo (Turfloop Campus), 2012. http://hdl.handle.net/10386/740.

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7

Soltani, Dashtbozorg Soroosh. "Microbial Rhamnolipids as Environmentally Friendly Biopesticides: Congener Composition Produced, Adsorption in Soil, and Effects on Phytophthora sojae." University of Akron / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=akron1438175115.

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8

Terrill, Thomas Howard. "Effects of soil moisture and al-nitrilotriacetate on yeild chemical composition and digestibility of ryegrass (Lolium multiflorum, L.) by meadow voles." Thesis, Virginia Polytechnic Institute and State University, 1985. http://hdl.handle.net/10919/53088.

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Flooding effects mineral composition of pasture grasses, but little is known concerning effects on mineral metabolism and fiber digestibility in animals. Experiments were conducted to investigate effects of flooding and Al-nitrilo-triacetate (Al-NTA) on growth, chemical composition and digestibility of annual ryegrass (Lolium multiflorum, L.). Ryegrass was grown in a greenhouse experiment on Bucks silt loam soil with two soil moisture levels (flooding and 80% field capacity) and two Al rates (0 and 135 mg/kg) as Al-NTA. Flooding increased Al, Fe, Cu, Ca and fiber and decreased dry matter yie

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9

Bergknut, Magnus. "Characterization of PAH-contaminated soils focusing on availability, chemical composition and biological effects." Doctoral thesis, Umeå : Umeå University, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-789.

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10

Joseph, Gilbert. "A comparative study of the chemical composition of soils from aquaculture systems in the Cochin estuarine area." Thesis, Central Marine Fisheries Research Institute, 1985. http://eprints.cmfri.org.in/11071/1/Joseph%20Gilbert%20P.%20G..pdf.

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In recent years there has been an increasing awareness of the role and benefits of scientific fish farming in coastal waters for augmenting fish production of India, although a traditional practice of aquaculture has been prevailing in these waters for a long time. A comprehensive knowledge of the ecology of the different culture systems forms an integral part of the scientific farming because it directly influences the rate of production. The growth and survival of the organisms used for culture depend largely on the overall productivity of the pond, which in turn, is influenced by the var

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11

Dejene, Mashilla. "Grain storage methods and their effects on Sorghum grain quality in Hararghe, Ethiopia /." Uppsala : Dept. of Ecology and Crop Production Science, Swedish Univ. of Agricultural Sciences, 2004. http://epsilon.slu.se/a454.pdf.

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12

Whatmuff, Mark. "The effect of applied 'high magnesium' bitterns upon the physical and chemical properties of soils from Wakool-Tullakool Irrigation District, New South Wales, Australia." Thesis, The University of Sydney, 1991. https://hdl.handle.net/2123/26371.

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This study was concerned with determining the effect upon soil structure when the drainage scheme evaporation pond product "high magnesium bitterns" was applied to soils from the Wakool-Tullakool irrigation district, N.S.W, Australia. Two soils were chosen covering the extremes of soil types found in the district. They were; 1. Burraboi Sandy Loam (Gn 2.63) a Calcic Aqiuc Haplustult and, 2. Moulmein Clay (Ug5.24) a Typic Chromoxerert. Laboratory tests were carried out to determine the basic physical and chemical properties of the two soils. Clay mineralogy for the two soils was deter

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13

Bopape-Mabapa, Moshidi Paulina. "Yield characteristics, carbon capture and chemical composition of moringa oleifera under diverse planting population and agro-ecological conditions of the Limpopo Province." Thesis, University of Limpopo, 2019. http://hdl.handle.net/10386/2860.

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Thesis (Ph. D. Agric. (Plant Production)) --University of Limpopo, 2019<br>Moringa oleifera is a multipurpose fast growing tree which is widely cultivated in tropical and subtropical regions of the world due to its numerous benefits. The benefits include medicinal use, industrial use, soil fertility, water purification, climate change mitigation as well as of nutritional value for humans and livestock. Recently, many areas globally have been rendered vulnerable to climate change as well as food insecurity. Climate change increases irregularities of rainfall and temperature patterns in semi-ari

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14

Gregorauskienė, Virgilija. "Cheminių elementų kiekių kaitos dėsningumai Lietuvos dirvožemio profilyje." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2012. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20121227_090556-03063.

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Disertaciniame darbe analizuojama Lietuvos dirvožemio cheminės sudėties vertikali kaita, paremta akredituotose laboratorijose nustatytais Lietuvos teritorijoje gautais duomenimis, analizuotais taikant standartizuotus matematinius–statistinius metodus. Tai leido objektyviai pagrįsti vertikalaus cheminių elementų pasiskirstymo dirvožemyje bendrus dėsningumus ir išryškinti Lietuvos dirvožemio vertikalios geocheminės sudėties specifiką tarptautiniame kontekste. Dirvožemio granuliometrinės sudėties ir išskirtų frakcijų cheminės sudėties analizė išryškino sąsajas tarp dirvožemio granuliometrinės ir

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15

Angst, Gerrit [Verfasser], Carsten W. [Akademischer Betreuer] [Gutachter] Mueller, and Karsten [Gutachter] Kalbitz. "Disentangling the sources, chemical composition, and spatial distribution of soil organic matter in topsoil and subsoil under European beech / Gerrit Angst ; Gutachter: Carsten W. Mueller, Karsten Kalbitz ; Betreuer: Carsten W. Mueller." München : Universitätsbibliothek der TU München, 2016. http://d-nb.info/111779668X/34.

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16

El, Make Mahmoud. "Base-cations in relation to weathering of phyllosilicates and forest management in Swedish forest ecosystems /." Uppsala : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 2000. http://epsilon.slu.se/avh/2000/91-576-5899-4.pdf.

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17

Rothpfeffer, Caroline. "From wood to waste and waste to wood : aspects on recycling waste products from the pulp mill to the forest soil /." Uppsala : Dept. of Forest Soils, Swedish University of Agricultural Sciences, 2007. http://epsilon.slu.se/200783.pdf.

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18

Kouakoua, Ernest. "La matière organique et la stabilité structurale d'horizons de surface de sols ferrallitiques argileux : effet du mode de gestion des terres." Nancy 1, 1998. http://www.theses.fr/1998NAN10016.

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Cette étude concerne essentiellement des sols ferrallitiques argileux (du Congo, du Brésil et de la Martinique). Les formes de matière organique (MO) susceptibles de variations importantes avec le mode de gestion de terres et la stabilité de l'agrégation ont été étudiées par différentes approches : par fractionnement granulométrique du sol et par extraction du sol à l'eau chaude. La stabilité structurale est estimée par le taux de macroagregats stables à l'eau (AS) avant et après traitement à l'eau chaude (ASE). La diminution importante des teneurs en C total dans les horizons de surface des s

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19

Souto, Patrícia Carneiro. "Acumulação e decomposição da serapilheira e distribuição de organismos edáficos em área de caatinga na Paraíba, Brasil." Universidade Federal da Paraíba, 2006. http://tede.biblioteca.ufpb.br:8080/handle/tede/8199.

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Submitted by Katiane Souza (katyane.souza@gmail.com) on 2016-05-12T14:09:26Z No. of bitstreams: 1 arquivototal.pdf: 1764591 bytes, checksum: 8c79fbd17f4301ebf5fb2c42a5a71c72 (MD5)<br>Made available in DSpace on 2016-05-12T14:09:26Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 1764591 bytes, checksum: 8c79fbd17f4301ebf5fb2c42a5a71c72 (MD5) Previous issue date: 2006-03-30<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES<br>Nutrient cycling is fundamental to forest maintenance, and involves the deposition of organic material, its decomposition and nutrient release fo

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20

HAMA, PATRICIA. "Estudo da influencia da chuva acida na concentracao de aluminio em solos proximos a uma termoeletrica a carvao." reponame:Repositório Institucional do IPEN, 2001. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10951.

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21

BONA, IRENE A. T. "Estudo de assinaturas químicas em cerâmica da tradição tupiguarani da região central do estado do Rio Grande do Sul, Brasil." reponame:Repositório Institucional do IPEN, 2006. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11433.

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Made available in DSpace on 2014-10-09T12:51:52Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:06:40Z (GMT). No. of bitstreams: 0<br>Tese (Doutoramento)<br>IPEN/T<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP

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22

Ouhdouch, Yedir. "Bacteries actinomycetales rares productrices d'antifongiques : criblage, selection et etude taxonomique d'une souche active ; purification de l'antifongique elabore." Nancy 1, 1989. http://www.theses.fr/1989NAN10077.

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23

Chateau, Denis. "Etude de l'influence de la structure et de la composition de matériaux hybrides monolithiques sur les propriétés optiques (luminescence et absorption non-linéaire)." Phd thesis, Ecole normale supérieure de lyon - ENS LYON, 2013. http://tel.archives-ouvertes.fr/tel-00863807.

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Le procédé sol-gel permet la réalisation de matériaux optiquement performants et la possibilité d'intégrer diverses molécules dans ces systèmes ouvre les portes à des applications dans de nombreux domaines. Nous nous sommes intéressés en particulier à la réalisation de matériaux sol-gel monolithiques, fortement dopés avec des molécules actives, dans le cadre de la réalisation de limiteurs optiques performants dans le visible et dans l'infrarouge.La mise au point de procédés et de matrices sol-gel compatibles avec divers types de chromophores a tout d'abord été effectuée. Une investigation des

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24

Orwin, K. H. "Soil microbial stability and function : the role of diversity, composition and soil resources." Thesis, University of Canterbury. Biological Sciences, 2004. http://hdl.handle.net/10092/6810.

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Soil microbial function and stability may affect many other ecosystem functions, including soil carbon storage, nutrient cycling and plant productivity. However, the drivers of soil microbial stability itself are little understood. This thesis therefore aimed to develop a method and indices capable of quantifying soil microbial stability in terms of the resistance (amount of change caused by a disturbance), and resilience (rate of recovery) of the soil microbial community to a model disturbance, and to determine the role of three potential drivers of soil microbial function arid stability: div

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25

Azevedo, Luiz Otavio Roffee. "Infra-Red Spectrophotometry and X-Ray Diffractometry as Tools in the Study of Nickel Laterites." Thesis, The University of Arizona, 1985. http://hdl.handle.net/10150/231213.

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Nickel silicate laterite deposits developed on ultra-mafic rocks are similar in many general respects but they vary considerably in detail. The mineralogy of these surficial deposits is very complex and difficult to determine because of the fine grained nature and solid solution characteristics of the hydrous secondary minerals and because many of the phases are actually mineraloids that are poorly ordered or amorphous. To try some new approaches toward clarification of these phases, 24 samples from New Caledonia and Puerto Rico ranging from the ophiolite-ultramafic olivine-pyroxene-chromite-s

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26

Chung, Meng-Chen. "Chemical composition and transport of ambient aerosols." Thesis, University of Essex, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.298838.

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27

Siegel, Karolina. "Chemical composition of summertime High Arctic aerosols." Licentiate thesis, Stockholms universitet, Meteorologiska institutionen (MISU), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-184291.

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This thesis presents new insights into the chemical composition of semi-volatile compounds in aerosol samples collected in the central Arctic Ocean close to the North Pole in September 2018. The central Arctic Ocean is an inaccessible location due to the lack of land areas along with heavy pack ice conditions. Therefore, large knowledge gaps remain to understand the Arctic climate system, and in particular the role of aerosol particles in its pristine atmosphere. The chemical composition of the aerosol samples was analysed on a molecular level using High Resolution Time-of-Flight Chemical Ioni

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28

Keeling, William G. "Effects of soil texture, soil depth, and treatment on septic tank effluent renovation." Thesis, This resource online, 1995. http://scholar.lib.vt.edu/theses/available/etd-06082009-171000/.

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29

Gangloff, Sophie. "Evaluation of the mechanisms of trace elements transport (Pb, Rare Earth Elements,... ) and the elemental and isotopic fractionation (Ca and Sr) at the interface water-soil-plant." Thesis, Strasbourg, 2016. http://www.theses.fr/2016STRAH002/document.

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Ce travail est axé sur l’étude d’un profil de sol et des solutions de sol prélevés sur une parcelle expérimentale couvertes d’épicéas. Tous ces échantillons proviennent du Bassin Versant du Strengbach (Observatoire HydroGéochimique de l’Environnement – OHGE), ont été échantillonnés à différentes profondeurs (5, 10, 30 et 60 cm) et durant la période comprise entre 2009 et 2013.Les caractérisations des extraits des sols par spectroscopie Infra-Rouge ont permis de mettre en évidence les modifications des groupements fonctionnels organiques avec la profondeur et que ces modifications ont une forte

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30

Troton, Didier. "Modifications de la composition lipidique des thylakoides intervenant au cours de l'adaptation d'euglena gracilis au diuron." Paris 7, 1987. http://www.theses.fr/1987PA077169.

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31

Hamuda, Salah Saed. "The relation between soil composition and its thermal characteristics." Thesis, University of Newcastle Upon Tyne, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.514996.

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32

Nel, Jacques A. "Vegetation and microbial determinants of soil carbon isotopic composition." Master's thesis, University of Cape Town, 2018. http://hdl.handle.net/11427/28072.

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Typically, soil δ¹³C and δ¹⁵N values tend to increase with depth across a wide range of ecosystems. Changes in δ¹³C with depth have been attributed to vegetation changes (i.e. C₃/C₄ shifts), but the similarity in δ¹³C and δ¹⁵N profiles suggest that microbial decomposition may play an important role. The determinants of soil δ¹³C and δ¹⁵N, however, are complex and microbial decomposition and vegetation shifts are not the only mechanisms that drive the fractionation of the isotopes with depth. We explored the utility of using δ¹³C as a proxy for vegetation change by considering alternative mecha

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33

Fang, Xingxiao. "Chemical Composition of Soybean Root Epidermal Cell Walls." Thesis, University of Waterloo, 2006. http://hdl.handle.net/10012/1281.

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The root epidermis, being the outermost cell layer of the organ, is in contact with the soil environment. The position of the epidermis determines its important roles, such as taking up water and ions from the surrounding soil, and defending against harmful microorganisms. What is the chemical composition of the walls in this layer? The chemical nature of the soybean epidermal wall modifying substance was investigated in this study with the use of histochemical tests coupled with electron microscopy, and chemical depolymerizations in combination with chromatography. Soybean (<em>Glycine

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34

Mao, Yasin Sufi. "Effect of chemical composition on saline water evaporation." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0027/MQ50827.pdf.

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35

Stonkutė, Edita. "Chemical composition of kinematically identified galactic stellar group." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2013. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2013~D_20130925_093107-33619.

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A number of stellar streams, moving and kinematic groups were identified in the Milky Way galaxy. Some of them are suspected to originate from accreted satellites. Can we also find such traces of ancient merger events in the solar neighbourhood? Helmi et al. (2006) identified three new coherent groups of stars in the Geneva-Copenhagen survey (Nordström et al. 2004) and suggested that those might correspond to remains of disrupted satellites. With the detailed chemical composition analysis of the newly identified kinematic group we aim to contribute to the Galactic substructure studies. The ma

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36

Anantawaraskul, Siripon. "Chemical composition distribution of binary and multicomponent copolymers." Thesis, McGill University, 2003. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=84462.

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Chemical composition distribution (CCD) of copolymers describes the distribution of average comonomer content among copolymer chains. This information is very important as CCD can significantly influence physical properties of copolymers. The main goal of this study is to further our understanding of the CCD of copolymers.<br>The present understanding of CCD of multicomponent copolymers is very limited and there are no analytical equations capable of describing this distribution. In the present study, analytical expressions for describing the CCDs of random multicomponent copolymers are

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37

Mao, Yasin Sufi 1963. "Effect of chemical composition on saline water evaporation." Thesis, McGill University, 1999. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=21600.

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The purpose of this work was to investigate the evaporation rates of various brines and to compare them to the evaporation rates of pure water under the same environmental conditions in the laboratory. NaCl, MgCl 2 and KCl were the salts used in the experiments, at three densities. Mixtures of the salts were also used. One set of experiments was conducted under free convection while the other was conducted under forced convection, both over pans. Temperature was relatively constant for the experiments but relative humidity was not controlled. Wind profiles were measured during the forced conve

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38

Gott, Paige. "Variation in the chemical composition of crude glycerin." Connect to resource, 2009. http://hdl.handle.net/1811/37082.

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Tkacz, Andrzej. "Plant genotype, immunity and soil composition control the rhizosphere microbiome." Thesis, University of East Anglia, 2013. https://ueaeprints.uea.ac.uk/48113/.

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Three model plant and three crop plant species were grown for three generations in sand and compost. Pots were inoculated with 10 % soil initially, and with 10% of growth medium from the previous generation in generations 2 and 3, keeping replicates separate for all three generations. The microbiome community structure of the plant rhizosphere in each generation was characterised using ARISA DNA fingerprinting and 454 sequencing. Rhizosphere bacterial and fungal communities are different from those in bulk soil and there are also differences in the microbial community between different plant s

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40

Jensen, Soren Ross. "Composition and biodegradation potential of polychlorinated alkane mixtures." Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=82604.

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A Monte Carlo Model was developed to simulate the free-radical chlorination of n-alkanes by which polychlorinated alkane mixtures are produced. The model parameters were the relative reactivity of the hydrogen atoms on the alkane chain to chlorine free-radical substitution. The values of the parameters were determined by free-radical chlorination experiments; by interpolation of data from these experiments or from data in the literature. The result of the model is a complete characterization of the molecular composition of PCA mixtures of any carbon chain length and degree of chlorinati

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41

Jackson, Andrew William. "Analysis of soil chemical residues and other soil factors associated with past human activity." Thesis, University of Bristol, 2001. http://hdl.handle.net/1983/2f03f40f-c71c-46bd-9078-05fd07efd027.

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42

Nielsen, Uffe Nygaard. "Influences on species richness and composition of belowground communities at multiple spatial scales." Thesis, Available from the University of Aberdeen Library and Historic Collections Digital Resources, 2008. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?application=DIGITOOL-3&owner=resourcediscovery&custom_att_2=simple_viewer&pid=24811.

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43

Herich, Hanna. "The relationship between aerosol chemical composition and hygroscopic growth /." Zürich : ETH, 2009. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=18239.

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44

Fokine, Michael. "Photosensitivity, chemical composition gratings and optical fiber based components." Doctoral thesis, KTH, Mikroelektronik och informationsteknik, IMIT, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3436.

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The different topics of this thesis include high-temperaturestable fiber Bragg gratings, photosensitivity and fiber basedcomponents. Fiber Bragg gratings (FBG) are wavelength dispersiverefractive index structures manufactured through UV exposure ofoptical fibers. Their applications range from WDM filters,dispersion compensators and fiber laser resonators fortelecommunication applications to different types of point ordistributed sensors for a variety of applications. One aim of this thesis has been to study a new type of FBGreferred to as chemical composition grating. These gratingsdiffer from

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45

Aziz, Haji Muhammad Majdi Pehin Dato Haji Abdul. "Baseline study on chemical composition of Brunei Darussalam rivers." Thesis, Brunel University, 2005. http://bura.brunel.ac.uk/handle/2438/4820.

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The research provides data of pH and conductivity, some anions (e. g. fluoride, chloride, bromide, nitrate, phosphate and sulphate), monovalent cations (e. g sodium, ammonium and potassium), divalent cations (e. g calcium and magnesium) heavy metals (e. g. iron, copper, zinc, nickel, cobalt, cadmium and manganese) and organic compounds – from water samples of rivers of Brunei Darussalam, namely, Brunei River, Belait River, Tutong River and Temburong River. The higher values of certain parameters with respect to the acceptable standard limits for river water indicate the pollution in river wate

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46

Kariptas, Ergin. "Chemical composition of Rhodococcus ruber with different growth conditions." Thesis, University of Newcastle Upon Tyne, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.340719.

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47

Siddiqui, Mohammad Nahid. "Studies on structure and chemical composition of Arabian asphalt." Thesis, Heriot-Watt University, 1997. http://hdl.handle.net/10399/671.

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48

Hort, Joanne. "Cheddar cheese : its texture, chemical composition and rheological properties." Thesis, Sheffield Hallam University, 1997. http://shura.shu.ac.uk/19833/.

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Procedures associated with Quantitative Descriptive Analysis were used to identify and subsequently train a panel to quantify the perceived textural attributes of Cheddar cheese. Seventeen types of Cheddar were assessed by the panel for creaminess, crumbliness (fingers), crumbliness (chewing), firmness, graininess, hardness (first bite), hardness (cutting), and springiness. Cluster and Principal Component analyses of the sensory data revealed that the cheese samples could be subdivided into young, mature and extra mature Cheddars in terms of the textural attributes measured. The panel was also

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49

Kameel, Fathima R. "Optical Properties and Chemical Composition of Secondary Organic Aerosol." Kent State University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=kent1240332384.

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Clark, Lauren Lisa. "Composition and cycling of marine organic phosphorus /." Digital version accessible at:, 2000. http://wwwlib.umi.com/cr/utexas/main.

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