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Dissertations / Theses on the topic 'Mineral and chemical company'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Powell, Mark William. "An investigation of chemical factors influencing bitumen-mineral adhesion." Thesis, University of Hertfordshire, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.314732.

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2

Close, Thomas Jr (Thomas Charles). "Kinetic analysis of leaching reactions in multi-component mineral systems." Thesis, Massachusetts Institute of Technology, 2021. https://hdl.handle.net/1721.1/130666.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Chemical Engineering, February, 2021<br>Cataloged from the official PDF of thesis.<br>Includes bibliographical references (pages 167-177).<br>The rational design of reactive systems requires the use of kinetic models of system behavior. However, the development of such models for multicomponent systems is complicated by conditions of mutual interference in determining reaction rates. Addressing this shortcoming for mineral systems requires developing methods to solve the fundamental problem of identity and resolve the partiti

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3

Pitt, Julian Llewellyn. "The behaviour of mineral particles in uranium solvent extraction systems." Thesis, Imperial College London, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.339619.

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4

Tran, Victor. "Effect of Mineral and Chemical Admixtures on Durability of Cementitious Systems." Scholar Commons, 2015. http://scholarcommons.usf.edu/etd/6040.

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Mineral and chemical admixtures are used today in almost all concrete mixtures to improve concrete fresh and hardened properties, and to enhance concrete durability. In this study, four mineral and four chemical admixtures were investigated: namely, metakaolin (MK), silica fume (SF), Class F fly ash (FA), blast-furnace slag (BFS), two high-range water reducers (SP), water reducer/retarder (WRD), and air-entrainer (AEA). The objective of this study is to assess the effects of commonly used mineral and chemical admixtures on the durability of the cementitious system. Two durability issues were a

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5

Spencer, David Lowell. "Physical and Chemical Properties of a New Mineral Trioxide Aggregate Material." VCU Scholars Compass, 2004. http://scholarscompass.vcu.edu/etd/647.

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The objective of this study was to compare the time to final set and compressive strength of the white mineral trioxide aggregate (MTA) formulation to the original grey MTA. To test compressive strength, each MTA formulation was placed into Teflon split molds for four hours at 37° Celsius (C) and 100% humidity. Compressive strength of both MTA formulations was measured at 24 hours (n=12) and 21 days (n=19) using an Instron Testing Machine. For determination of time to final set, each MTA formulation (n=6) was placed into a metal mold and maintained at 37° C and 100% humidity while setting.

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6

RIGOLDI, AMERICO. "Sulfur chemical state at mineral surfaces - An XPS and XAES investigation." Doctoral thesis, Università degli Studi di Cagliari, 2011. http://hdl.handle.net/11584/266328.

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During the interaction of sulphide minerals with the environment many reactions may occur. The knowledge of sulphur chemical state is important in order to clarify the mechanisms of oxidation/dissolution and precipitation reactions also in biotic conditions on the surface of these minerals. To date different hypotheses have been proposed for identifying the sulphur compounds that may form but no consensus is reached so far because the identification has been carried out either only on the basis of the photoelectron signals or combining the photoelectron signal with the centroid of the X-ray in

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7

Kang, Shin-Gyoo. "Fundamental studies of mineral matter transformation during pulverized coal combustion : residual ash formation." Thesis, Massachusetts Institute of Technology, 1991. http://hdl.handle.net/1721.1/13746.

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8

Vorster, Werner. "The effect of microwave radiation on mineral processing." Thesis, University of Birmingham, 2001. http://etheses.bham.ac.uk//id/eprint/309/.

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Between 50% and 70% of the total energy used in the extraction process may be attributed to comminution. Microwave pre-treatment has been suggested as a means to decrease the energy requirements. A variety of mineral ores have been investigated and the effects of microwave radiation quantified in terms of the mineralogy, changes in the Bond Work Index, flotability and magnetic separation. It has been shown that microwave pre-treatment is most effective for coarse grained ores with consistent mineralogy consisting of good microwave absorbers in a transparent gangue (up to a 90% decrease in Bond

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9

Broadhurst, Jennifer Lee. "Generalised strategy for predicting environmental characteristics of solid mineral wastes : a focus on copper." Doctoral thesis, University of Cape Town, 2007. http://hdl.handle.net/11427/5357.

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Includes bibliographical references (p. 221-234).<br>The impacts associated with primary production of metallic and fossil minerals are significant, and these industry sectors are facing increasing pressure to improve environmental performance and contribute to development that is consistent with sustain ability principles. The management of large volumes of solid wastes poses a particular problem, with the potential post-closure impacts and liabilities associated with the prolonged discharge of contaminated leachate from deposits of such wastes remaining of major concern to both regulators an

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10

Ndlovu, Bulelwa. "The effect of phyllosilicate mineralogy and surface charge on the rheology of mineral slurries." Doctoral thesis, University of Cape Town, 2013. http://hdl.handle.net/11427/5428.

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Includes abstract.<br>Includes bibliographical references.<br>Phyllosilicate minerals exist as common gangue components in many low grade ores. Often broadly classified as ‘clays’, this group of minerals is closely associated with several processing issues. Despite many good studies on the physico-chemical properties of phyllosilicates, there still remains a poor understanding of their suspension flow behaviour. The primary objective of this thesis was to characterise the colloidal behaviour of three commonly occurring phyllosilicates, namely muscovite, vermiculite and chrysotile in terms of t

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11

Mahfouz, Grace N. "MINERAL UPTAKE RATES AND YIELD COEFFICIENTS OF THE GREEN MICROALGAE SCENEDESMUS DIMORPHUS." Cleveland State University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=csu1420907448.

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12

Carter, Assheton Stewart. "Mining companies as agents of development? : corporate social responsibility, participation and local community at mining projects." Thesis, University of Bath, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.323581.

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13

Heyes, Andrew. "Mineral weathering by dissolved organic carbon in subarctic fens." Thesis, McGill University, 1990. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=59647.

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The contribution of dissolved organic carbon (DOC) to mineral weathering was investigated under the changing Eh and pH conditions in three subarctic fens, near Schefferville, Quebec. No evidence of increased weathering rates nor different weathering patterns were found in the fen basal sediment despite DOC-rich and low Eh (0 to +200 mV) conditions.<br>Solutions containing 50 mg DOC/L derived from subarctic fen peat, and of 50 and 300 mg DOC/L, derived from deciduous leaf litter were used as weathering agents. Clinochlore, microcline and the Fe-rich basal till from the Schefferville fens were u

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14

Fraser, Rebecca. "Chemical investigation and fluorescence imaging of uranium immobilisation in heterogenous bench-scale flow reactors." Thesis, University of Sheffield, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.632647.

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15

Ncongwane, Mpendulo S. "Assessment of the potential carbon footprint of engineered processes for the mineral carbonation of PGM tailings." Master's thesis, University of Cape Town, 2016. http://hdl.handle.net/11427/20951.

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Mineral carbonation is a carbon sequestration technology that entails the reaction of CO2 with oxides or silicates of magnesium, calcium or iron to produce stable carbonate compounds. Magnesium-rich tailings from the platinum industry in South Africa have been identified as a potentially viable and attractive feedstock for CO2 sequestration through mineral carbonation. Many of the strategies proposed to enhance the dissolution kinetics of silicate minerals, such as the use of elevated temperatures and pressures and chemical additives, as well as pretreatment through mechanical and thermal acti

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16

Calderwood, Arthur Robertson. "Mineral physics constraints on the chemical composition and temperature of the Earth's mantle." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0021/NQ48612.pdf.

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17

Morar, Sameer Harish. "The use of machine vision to describe and evaluate froth phase behaviour and performance in mineral flotation systems." Doctoral thesis, University of Cape Town, 2010. http://hdl.handle.net/11427/11712.

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Includes synopsis.<br>Includes bibliographical references (leaves 179-190).<br>Within froth flotation, it is widely acknowledged that froth stability affects flotation performance. As a result, it is expected that through the effective management of froth stability, it would be possible to both control and optimise a flotation cell and bank. However, for this to be possible, the relationships between the operating conditions, froth stability behaviour and flotation performance attributes need to be well understood. In addition, froth stability would need to be measured using a robust method su

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18

Wigley, Max Merlin. "Fluid-mineral reactions in an exhumed CO2-charged aquifer, Green River, Utah, USA." Thesis, University of Cambridge, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.608145.

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19

Christianto, Heru Ari. "Effect Of Chemical And Mineral Admixtures On The Fresh Properties Of Self Compacting Mortars." Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/12605322/index.pdf.

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Fresh properties of mortars are important factors in altering the performance of self compacting concrete (SCC). Measurement of the rheological properties of the fine mortar part of concrete is generally used in the mix design of SCC. It can be stated that SCC rheology can be optimized if the fine mortar part of concrete is designed properly. However, measurement of the rheological properties is often impractical due to the need for complex equipment. Therefore, more practical methods of assessing mortar workability are often preferred. In this study, four mineral admixtures, three supe

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20

Nekoofar, Mohammad Hossein. "The effect of contamination on selected physical and chemical characteristics of mineral trioxide aggregate." Thesis, Cardiff University, 2011. http://orca.cf.ac.uk/14248/.

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Aim: To evaluate the effect of various environmental (clinical) conditions on the physical and chemical characteristics of Mineral Trioxide Aggregate (MTA). Methodology: Initially preparation of specimens was standardised. Moreover, a novel mixing technique, trituration of encapsulated MTA, was developed. The effects of acid and blood contamination on various characteristics of MTA including compressive strength, surface microhardness, push-out bond strength and total porosity were then evaluated. Furthermore, by using X-ray diffraction analysis the hydration process of blood contaminated MTA

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21

Vallée, Daniel. "Mechanical and chemical characterization of the heterogeneous microstructure of green concrete with mineral additions." Thesis, Université Laval, 2013. http://www.theses.ulaval.ca/2013/30191/30191.pdf.

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La compréhension des propriétés mécaniques de la microstructure des bétons verts est l'un des principaux intérêts de recherche dans l'industrie du ciment et du béton. Ce rapport traite de l'étude de pâtes de ciment ordinaire et d'une pâte de ciment avec ajout de laitier en couplant un à un les réponses chimiques et mécaniques mesurées à l'échelle nanoscopique. Les techniques expérimentales utilisées sont la technique de la nanoindentation ainsi que l'analyse chimique quantitative par microscopie électronique à balayage couplée à un détecteur de rayons X à dispersion d'énergie (MEB-EDS). L'anal

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22

Kato, Shuhei. "Contributions of a minerals industry cluster to sustainable development: A case study on human and social capital in Richards Bay, South Africa." Master's thesis, University of Cape Town, 2017. http://hdl.handle.net/11427/25062.

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The South African economy has developed with its strong connection to the minerals extraction and processing industries. Rich endowments of coal and a well-established mining sector in the country enabled the generation and supply of competitively priced electricity to energy and capital intensive processing and chemical industries. Although the minerals industry cluster remains globally competitive at the present time, whether it can be a catalyst for sustainable development, economically, socially and environmentally is in question. Field work was carried out in Richards Bay to analyse the d

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23

Lindsay, Curtis George. "Purely ionic and molecular orbital modelings of the bonding in mineral crystal structures." Diss., Virginia Polytechnic Institute and State University, 1988. http://hdl.handle.net/10919/53573.

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The modified electron gas (MEG) model has been used to generate ionic model CaCO₃ crystals in the calcite, aragonite, diopside, and perovskite structure types. For calcite and aragonite, the model predicts shorter CO bonds and larger bulk moduli than observed. Modeling of the thermochemistry of CaCO₃ does not reproduce the observed thermochemistry even qualitatively. The model predicts that the hypothetical diopside structure type is the most stable form CaCO₃ among the four structure types. These discrepancies may illustrate the significance of CO bond covalency in determining the physico-che

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24

Shackleton, Natalie Jean. "Surface characterisation and flotation behaviour of the platinum and palladium arsenide, telluride and sulphide mineral species." Doctoral thesis, University of Cape Town, 2007. http://hdl.handle.net/11427/5403.

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Includes bibliographical references (leaves 170-181).<br>The Platreef is located in the northern limb of the Bushveld Complex of South Africa. This reef consists of a complex assemblage of rock types, with pyroxenites, serpentinites and calcsilicates being the most abundant. The predominant PGMs are the tellurides, arsenides, alloys and sulphides. The Pt and Pd tellurides contribute between 20-45% of the PGMs present in the Platreef ore followed by the alloys (26%), arsenides (21%) and sulphides (19%). Flotation is used in the processing of the Platreef ore to separate the siliceous gangue fro

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25

Kishimoto, Angelica Mariko Naka. "Hydraulic Performance and Chemical Compatibility of Mineral Barriers to Mitigate Natural Contamination from Excavated Rocks." 京都大学 (Kyoto University), 2014. http://hdl.handle.net/2433/188879.

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26

Söngen, Hagen [Verfasser]. "Atomic force microscopy at mineral-water interfaces : hydration, chemical identification and point defects / Hagen Söngen." Mainz : Universitätsbibliothek Mainz, 2018. http://d-nb.info/1160611017/34.

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27

Rubasinghege, Gayan Randika S. "Chemical and photochemical reactions on mineral oxide surfaces in gaseous and liquid phases: environmental implications of fate, transport and climatic impacts of mineral dust aerosol." Diss., University of Iowa, 2011. https://ir.uiowa.edu/etd/1173.

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Mineral dust aerosols emitted from the Earth crust during various natural and anthropogenic processes continuously alter the chemical balance of the atmosphere via heterogeneous processes and thus, impact on the global climate. Understanding of heterogeneous chemistry and photochemistry on mineral dust has become vital to accurately predict the effect of mineral dust loading on the Earth's atmosphere. Here, laboratory measurements are coupled with model studies to understand heterogeneous chemistry and photochemistry in the atmosphere with the specific focus on reactions on mineral oxide surfa

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28

Oladejo, Jumoke Mojisola. "Thermal analysis of the synergistic influence of the organic and mineral constituents of biomass on coal and biomass fuel blends." Thesis, University of Nottingham, 2018. http://eprints.nottingham.ac.uk/48042/.

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Energy security, affordability and availability, as well as ensuring environmental sustainability are crucial considerations necessary for determining the future energy mix. The forecasted continuous use of coal in power generation and chemical industries makes it an important, yet polluting energy source. This has motivated researchers into investigating various clean coal processes such as the increased interest in co-blending of coal with alternative fuels like biomass due to its carbon lean nature. However, the utilisation of coal and biomass blends in conventional thermal reactors has hig

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29

Andritsos, Dimitrios, and Anthony Craig. "Vendor managed inventory vs. order based fulfillment in a specialty chemical company." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/36147.

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Thesis (M. Eng. in Logistics)--Massachusetts Institute of Technology, Engineering Systems Division, 2006.<br>Includes bibliographical references (leaf 59).<br>In this thesis, an analysis of the existing order based fulfillment process for one product line of a specialty chemicals manufacturer is made and the potential benefits from the implementation of a vendor managed inventory (VMI) system are quantified. A single facility is considered and our focus is on the possible reductions in transportation effort. Initially, a set of criteria are defined for classifying which storage tanks will be s

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Hernández, López José Joaquín 1974. "Evaluation of bulk and packaged distribution strategies in a specialty chemical company." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/29531.

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Thesis (M. Eng. in Logistics)--Massachusetts Institute of Technology, Engineering Systems Division, 2003.<br>"June 2003."<br>Includes bibliographical references (leaves 99-100).<br>A logistics cost model is developed for a chemical distribution system from a single plant using bulk and packaged transportation strategies. The purpose of this research is to provide a tool that helps understand the cost trade offs in the operation of a logistics system at a strategic level for large scale systems and complex distribution systems. An analytical modeling approach was used to determine variables tha

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31

Nakagawa, Osamu 1964. "A study in long-term technology strategy at an American chemical company." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/9182.

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Thesis (S.M.)--Massachusetts Institute of Technology, Sloan School of Management, 2000.<br>Includes bibliographical references.<br>In the mid of its nearly 200 years history, E. I. du Pont de Nemours and Company (Du Pont) made a transformation from a gun powder company to a diversified chemical company with intensive R&D capability. Now the company is making another major change into a company with integration of biotechnology and chemistry. This thesis analyzed Du Font's long-term technology strategy. The company is going to make a strong commitment in development of biotechnology as well as

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32

Lisovyk, Anhelina, and Olga Yezhova. "Features of the corporate style elements of the company of chemical materials." Thesis, Universitatea Tehnică a Moldovei, 2021. https://er.knutd.edu.ua/handle/123456789/18204.

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The paper presents result of the graphic elements study of the corporate identity of the company’s chemical materials. It is determined that the company, including those which are engaged in the sale and supply of chemical products for various industries, is highly-demanded in the market. Development of the improved design-project variant for printed products during corporate identity presentation of the company is principal for the company’s success. The features of printed products with a pronounced corporate identity were investigated.

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33

Viergutz, Micheline. "What Are the Conditions Necessary to Promote the Ideal Relationship Amongst Petro State, State Oil Company and International Oil Company?" Scholarship @ Claremont, 2012. http://scholarship.claremont.edu/cmc_theses/336.

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An analysis of the historical relationship between the petrostate, state oil company and international oil company in the context of the resource nationalism phenomenon and its consequences to the existing contractual frameworks . Negotiating techniques and contractual stabilizing mechanisms are explored in order to identify the main parameters and conditions necessary to optimize the interaction between these key players in the international oil industry. Quantitative and qualitative aspects of the contracts are identified in order to recommend new paradigms for a more harmonic future in the

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34

Zhou, Yuan. "Electrical properties of mineral oil and oil/impregnated pressboard for HVDC converter transformers." Thesis, University of Southampton, 2014. https://eprints.soton.ac.uk/376538/.

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Modern power industry requires higher performance dielectric liquids. Mineral oil is one of those most important and widely used insulating materials. Recently, research on the dielectric properties of mineral oil insulation reveal that oil resistivity can greatly influence the field distribution within an oil-pressboard insulation system in a DC field environment, especially during polarity reversals. Basic test methods such as dielectric spectroscopy and polarization and depolarization measurement have already been used to test mineral oil and pressboard conductivity. However, the knowledge

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35

Olsen, Amanda Albright. "Forsterite Dissolution Kinetics: Applications and Implications for Chemical Weathering." Diss., Virginia Tech, 2007. http://hdl.handle.net/10919/28213.

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Silicate minerals are the most common mineral group in the earth's crust so it is not surprising that their weathering reactions dominate the chemistry of many earth surface processes. This project used forsterite as a model system to identify the important factors that affect silicate mineral dissolution rates and grain lifetimes in the weathering environment. I determined an empirical rate law for forsterite dissolution of forsterite in oxalic acid solutions: based on a series of 124 semi-batch reactor experiments over a pH range of 0 to 7 and total oxalate concentrations between 0 and 0.35

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36

Castro, Filipe Miguel Correia de. "Características químicas e físicas de alguns MTA's: revisão bibliográfica." Master's thesis, [s.n.], 2014. http://hdl.handle.net/10284/4372.

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Projeto de Pós-Graduação/Dissertação apresentado à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de Mestre em Medicina Dentária<br>Introdução: O MTA foi preconizado com o intuito de substituir os materiais obturadores que não reuniam as características ideias para tratamentos dentários, tais como retro-obturações e reparação de perfurações radiculares. Objectivo: Pretende-se com este trabalho analisar e sintetizar a evidência científica existente sobre o MTA disponível no mercado que reúna o máximo de caraterísticas químicas e físicas para a prática clínica

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37

Tyrologou, Pavlos. "A structural and physico-chemical investigation of mineral/organic composites as novel components of engineered fill." Thesis, Imperial College London, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.424391.

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38

Manono, Malibongwe Shadrach. "An investigation into the effect of ionic strength of plant water on valuable mineral and gangue recovery of a platinum bearing ore from the Merensky reef." Master's thesis, University of Cape Town, 2012. http://hdl.handle.net/11427/11985.

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Includes synopsis.<br>Includes bibliographical references.<br>Higher solids and water recoveries were obtained at higher ionic strength. The increase in the ionic strength in the absence of any depressant caused an increase in Cu and Ni recovery.

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Soo, Rochelle. "Microbial Biodiversity of Thermophilic Communities in Hot Mineral Soils of Tramway Ridge, Mt. Erebus, Antarctica." The University of Waikato, 2007. http://hdl.handle.net/10289/2441.

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Only a few studies have looked at microbial biogeography in soils and whether microorganisms are endemic to an area is still debatable. Tramway Ridge, a geothermal area on Mount Erebus, Antarctica, provides a unique opportunity due to its isolation and extreme conditions to explore the possibilities of microbial endemism and to identify novel Bacteria and Archaea. This site was chosen for a culture-independent study with a preliminary culturing survey for bacterial communities along three temperature gradients (65 C - 2.5'C). In addition, a physico-chemical analysis was undertaken to identify

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40

Babiker, Dina, and Matilda Ahlstrand. "Experimental Study of Mineral Carbonation of Wollastonite for Increased CO2 Uptake." Thesis, KTH, Hållbar utveckling, miljövetenskap och teknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-255871.

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The cement and concrete industry stand for approximately 8% of the global CO2 emissions. The demand of concrete and cement is expected to increase rapidly with the growing world population and increased urbanization. This makes it of the utmost importance for the industry to try to mitigate its emissions. One way to reduce the industry’s environmental impact is by mineral carbonation curing through which CO2 can be sequestered in the concrete. This investigation studied the CO2 uptake of wollastonite (CaSiO3) which can be used for mineral carbonation. The CO2 uptake of different brands of woll

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Moberly, James Gill. "Influences of chemical speciation and solid phase partitioning on microbial toxicity single organism to in situ community response /." Thesis, Montana State University, 2010. http://etd.lib.montana.edu/etd/2010/moberly/MoberlyJ0510.pdf.

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The waters and sediments of Lake Coeur d'Alene (LCDA) in northern Idaho have been contaminated by heavy metals because of decades of mining operations. Metal speciation is critical in assessing toxicity because it may vary considerably with pH and is dependent on other aqueous constituents. There has been little research on integrated investigations of the effects of heavy metal speciation on indigenous microbes from LCDA, especially large scale community analysis. The focus of this research in the LCDA system was to determine the effect of heavy metal speciation on toxicity, first in a define

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42

Marchese, Morales Adolfo. "The merger between Dow Chemical and DuPont results in the biggest chemical company in the world; Merck finishes Sigma-Aldrich acquisition." Revista de Química, 2016. http://repositorio.pucp.edu.pe/index/handle/123456789/99158.

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43

Chalton, B. I. "Mineral-chemical lithostratigraphic relationships in biostratigraphically barren alluvial strata : a case study from the Skagerrak Formation Triassic (UKCS)." Thesis, University of Aberdeen, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.590939.

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The Triassic Skagerrak deposits of the Crawford Field, northern North Sea (UKCS), were deposited during semi-arid climatic conditions, within an active fault regime. The Triassic sequence represents fluvial alluvial sedimentation ranging from unconfined laterally extensive sheet flood deposits through to more confined small ribbon-like channel deposits. Geomorphologically stable areas demonstrate the development of palaeosols towards the upper regions of the Skagerrak Formation. Given the faunally barren nature and highly complex, fault-controlled sedimentation history, inter-well correlation

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44

Nitiputri, Kharissa Ayu Perdana. "Morphological and chemical changes in in vitro bone mineral and the effect of strontium on in vitro mineralisation." Thesis, Imperial College London, 2015. http://hdl.handle.net/10044/1/44877.

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The steps involved in early bone mineralisation have been extensively studied. Studies have suggested various means by which bone mineralisation occurs: (1) a cell-independent (protein-assisted) process where non-collagenous proteins mediate soluble ions to form mineral on the collagen fibril; (2) a cell-controlled mechanism where mineral seeds formed within intracellular vesicles released from the plasma membrane would subsequently rupture and disperse their contents on the extracellular matrix; and (3) an acellular route in which amorphous calcium phosphate mineral precursors are produced an

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45

Smith, Elaine Mary Davis. "The implications of new developments in technology on searching habits in a chemical company." Thesis, Liverpool John Moores University, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.304471.

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46

Oakley, S. "A study of the logistics function within a medium sized, sales orientated chemical company." Thesis, University of Manchester, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.232820.

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47

Huang, Shu. "Influence of Chemical Composition and Water on the Bulk Modulus of Pyrope." FIU Digital Commons, 2014. http://digitalcommons.fiu.edu/etd/1185.

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Garnets are major silicates from the upper mantle to the transition zone. Elastic properties of garnets are essential to interpret the variation of seismic velocities at different depths and construct a model of the Earth’s composition. Due to the chemical flexibility at octahedron sites of the crystal structures, garnets usually exist with multiple components and have many composition variations. Pyrope is an important member in the garnet group. Fe2+-Mg2+ substitution in pyrope is one of the common solid solutions. We have synthesized and measured three synthetic solid solutions samples (Py8

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Sahu, Shitarashmi. "Bio-Mineral Processing: A Suitable Approach." Thesis, 2010. http://ethesis.nitrkl.ac.in/2042/1/Copy_of_new_black_23_april_Thesis_Shitarashmi_Sahu_22april.pdf.

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Bio-mineral processing is the generic term that describes the processing of metal containing ores,concentrator tailings, newly mined run-of-the-mine (ROM) material, and intermediate to highgrade ores using (micro-) biological technology. The application of bio catalyzed metal extraction has already been established for various metals in lab scale and the commercialization of processes for the extraction of the valuable gold, base metals like copper, zinc and cobalt from their high grade, sulfide ore bodies are over. For the lean grade ores and tailings, which are supposed to be the future reso

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Yao-TingChang and 張堯婷. "Mineral and chemical reactions in the supercritical CO2-water-feldspar system." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/04250523981741064909.

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郭釗成. "Study of Biodegradation and Chemical Oxidation of Mineral Oil-Contaminated Soil." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/99426122110423333238.

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碩士<br>國立屏東科技大學<br>環境工程與科學系所<br>100<br>Bioremediation for TPH contaminated soil is a commonly used in-situ technology. Although bioremediation is low cost and ecological concerned, it has high uncertainty come from long remediating time and land use value. Physic-chemical treatments such as in-situ chemical oxidation and surfactant-flush are then widely used on contamination sites. Lubricants are long-chain hydrocarbons. Compared to gasoline, diesel and other oil product, it is more difficult to be metabolized by microorganisms. Treatment train concepts were selected in this study. Three differ

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