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Dissertations / Theses on the topic 'Oil and grease'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Rincon, Guillermo. "Kinetics of the electrocoagulation of oil and grease." ScholarWorks@UNO, 2011. http://scholarworks.uno.edu/td/131.

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Research on the electrocoagulation (EC) of hexane extractable materials (HEM) has been conducted at the University of New Orleans using a proprietary bench-scale EC reactor. The original reactor configuration forced the fluid to follow a vertical upward-downward path. An alternate electrode arrangement was introduced so that the path of flow became horizontal. Both configurations were evaluated by comparing the residence time distribution (RTD) data generated in each case. These data produced indication of internal recirculation and stagnant water when the fluid followed a vertical path. These

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2

Kwong, Kai-chi Linda, and 鄺佳慈. "New approaches to oil and grease waste management in Hong Kong." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2004. http://hub.hku.hk/bib/B31255875.

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3

Mukandi, Melody. "Modelling of a bioflocculant supported dissolved air flotation system for fats oil and grease laden wastewater pretreatment." Thesis, Cape Peninsula University of Technology, 2017. http://hdl.handle.net/20.500.11838/2637.

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Thesis (MTech (Chemical Engineering))--Cape Peninsula University of Technology, 2017.<br>In the recent past, the poultry industry in South Africa has grown due to an increased demand of poultry products as a result of population growth and improved living standards. Furthermore, this has led to poultry slaughterhouses generating high strength wastewater which is laden with a high concentration of organic and inorganic pollutants from the slaughtering process and sanitation of equipment and facilities. As a result, South Africa has promulgated restrictions and a set of quality standards fo

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4

Alqaralleh, Rania Mona Zeid. "Thermophilic and Hyper-thermophilic Anaerobic Co-digestion of Thickened Waste Activated Sludge and Fat, Oil, and Grease." Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/38496.

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In this thesis, the anaerobic co-digestion of thickened waste activated sludge (TWAS) and, fat, oil and grease (FOG) was investigated as a method for TWAS:FOG treatment, stabilization, reduction and conversion to bio-methane gas as a valuable source of renewable energy. In the first phase, thermophilic and hyper-thermophilic anaerobic co-digestion of TWAS and FOG were investigated and compared. 20 – 80%FOG (based on total volatile solids) were tested using two sets of biochemical methane potential assays (BMP). Hyper-thermophilic co-digestion of TWAS with up to 60%FOG was shown to signifi

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5

Crawford, Morgan H. "Feasibility and Emissions of Compression Ignition Engines Fueled with Waste Vegetable Oil." [Tampa, Fla.] : University of South Florida, 2003. http://purl.fcla.edu/fcla/etd/SFE0000193.

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6

Hendricks, Ashley Alfred. "Isolation and characterisation of lipolytic bacteria and investigation of their ability to degrade fats, oils and grease in grain distillery wastewater." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/97059.

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Thesis (MSc Food Sc)--Stellenbosch University, 2015.<br>ENGLISH ABSTRACT: The large volumes of effluent water generated by distillery industries is an issue of great concern as it contains pollutants that must be treated according to environmental legislation. It has been reported that grain distillery wastewater (GDWW) is high in fats, oils and greases (FOG) that can be reduced by treating with suitable microorganisms. The objective of this study was to investigate the biodegradability of FOG in GDWW. This was done by isolating lipolytic bacteria from soil, which was situated close to th

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7

Zhu, Kuang. "Effect of Long Chain Fatty Acids on Anaerobic Digestion of Municiapal Sewage Sludge in Completely Mixed Reactors." Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/23192.

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Fats, oil and grease (FOG) are generated in large amounts by cooking and food processing. Anaerobic co-digestion with municipal sewage sludge has proven to be one of best alternatives for FOG disposal due to its high potential for biogas production. However, excessive addition of long chain fatty acid, the major content of FOG, has been reported to have inhibitory effects on the anaerobic digestion process and to cause operational challenges. In this study, high purity long chain fatty acids (LCFAs) including linoleic acid, oleic acid, and a mixture of oleic acid and stearic acid were added to

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8

Borja, Eloise Melanie Maia de. "Avaliação de fenóis, óleos e gorduras em águas residuais urbanas." Master's thesis, Universidade de Évora, 2013. http://hdl.handle.net/10174/11398.

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A água imprescindível à vida é utilizada em diversas atividades humanas, o que resulta em água poluída designada de água residual. O grupo dos poluentes orgânicos presentes; nestas águas tem sido apontado como um dos maiores problemas no seu tratamento, nomeadamente os fenóis, devido ao seu caracter toxico, e os óleos e gorduras, pelo risco que representam tanto para o ambiente como para os processos de tratamento. Este trabalho teve como objetivo a implementação de dois métodos físico-químicos, um para a determinação de fenóis e outro para a determinação de óleos e gorduras em águas residuais

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9

Shrestha, Dilesh Raj. "Bearing condition monitoring : An investigation on the possibility of monitoring aging of the lubricating grease by means of acoustic emission and temperature." Thesis, Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-87220.

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Grease is among the most widely used lubricants in rolling element bearings. Proper understanding of the effect of lubrication due to grease aging can provide a significant increase in the life of the engineering systems. However, at present, there is no sufficient understanding of the grease aging effect in rolling elements bearing. This restricts the optimal usage of the bearing and timely monitoring of the grease. The current research work tries to address this issue with an experimental investigation. This project studies the behavior of 4 types of greases in rolling elements bearings for

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10

Hummel, Adelaide Pereira. "Field Development and Performance Evaluation of a Constructed Wetland System in the Tropics." FIU Digital Commons, 2013. http://digitalcommons.fiu.edu/etd/1218.

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This study is part of a project that was conducted by Florida International University (FIU), which designed, built, and characterized a constructed wetland (CW) wastewater treatment system in El Salvador, Central America. This study focuses on the detailed performance of a field-scale CW in the tropics, consisting of a subsurface flow wetland (SSF) and a surface flow wetland (SF). The SSF had a total area of 151.2 sq. m., filled with gravel and planted with Phragmites, Thalia, and Brachiaria, along three independent cells operating with a flow in parallel and receiving the influent domestic w

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11

Pontes, Ana Flávia Vieira. "Avaliação de desempenho de reator anaeróbio-aeróbio com recirculação da fase líquida no tratamento de água residuária proveniente de abatedouro de aves." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/18/18138/tde-13082009-132238/.

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Este trabalho buscou avaliar o desempenho de um reator de leito fixo e escoamento ascendente, operado de modo contínuo, com argila expandida e espuma de poliuretano como suportes para imobilização da biomassa, no tratamento de água residuária proveniente de abatedouro de aves. Na primeira fase do trabalho, o reator foi operado em condição anaeróbia e anaeróbia-aeróbia, no tratamento da água residuária bruta proveniente do abatedouro. No entanto, sua eficiência na redução de matéria orgânica pode ser atribuída a processos de adsorção e não biodegradação, o que resultou em períodos de operação c

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12

Yeong, Shoot Klan. "Rheological properties of lubricating grease." Thesis, Imperial College London, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.251581.

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13

Ferreira, Lizé-Mari. "Green composites from castor oil and renewable reinforcing materials: maleated castor oil-polystyrene matrix reinforced with greige fibre." Master's thesis, Faculty of Engineering and the Built Environment, 2020. http://hdl.handle.net/11427/32255.

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The need to find biodegradable alternatives for common polymer materials has risen due to the increase in pollution (soil and water) and the effects that it has on the ocean and wildlife. Alternatives can be found by turning to plant-based oils, for example castor oil, to be used in the synthesis of a variety of monomers. Castor oil is suitable as it is non-edible; thus its use does not deplete food sources and it has high chemical reactivity. In this study, medical grade castor oil was maleated by the addition of maleic anhydride to form maleated castor oil (MACO). This reaction was performed

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14

Morris, Katherine-Anne. "Oil, power, and global hegemony." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/97090.

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Thesis (MA)--Stellenbosch University, 2015.<br>ENGLISH ABSTRACT: This study explores the impact of primary energy on the measurement of state power and hegemony. Through an examination of British and American hegemonies, the role of coal, oil and petroleum on the hegemonic cycle is assessed, and the argument is presented for the inclusion of energy as a primary element underpinning the state power base. Utilising the Hegemonic Stability Theory approach to the study of global hegemony, a framework for the assessment of the role of energy on international hegemony is constructed. The Hegem

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15

Lunnbäck, Johan. "Hydrodynamic cavitation applied to anaerobic degradation of fats, oils and greases (FOGs)." Thesis, Linköpings universitet, Tema Miljöförändring, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-140685.

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To increase profitability for biogas production, new innovative substrates and condition of operations needs to be implemented. At the current state, fats, oils and greases (FOGs) represent a promising substrate even though it brings operational challenges to the anaerobic digestion process. By utilizing hydrodynamic cavitation (HC) as a pre-treatment of the FOGs, the efficiency of FOGs’ co-digestion with wastewater sludge can be significantly improved. Preliminary experiments conducted on oil and water demonstrates that the HC pre-treatment improves the oil solubilisation as well as forms sta

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16

Gibson, Martin William. "British strategy and oil, 1914-1923." Thesis, University of Glasgow, 2012. http://theses.gla.ac.uk/3160/.

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This thesis analyses the significance of oil to British strategy during 1914-1923. It shows that by 1923 Britain had a coherent oil policy, which affected naval strategy, diplomatic relations, policy towards the oil industry and post-war aims in the Middle East. Previous works have looked at only part of the picture and have not appreciated the extent to which oil affected all these areas. This work brings all these different facets together into a single study. The most important British user of oil was the Royal Navy, which was replacing coal with oil as its principal fuel even before the Fi

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17

Elliott, Lisa Marie. "Gendering the Production and Consumption of Wine and Olive Oil in Ancient Greece." Miami University / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=miami1150917284.

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18

Tu, Qingshi. "Fats, Oils and Greases to Biodiesel: Technology Development and Sustainability Assessment." University of Cincinnati / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1448037796.

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19

Baker, Tanya Dawn. "Preparing for Oil Spill Impacts on Recreational Usage: A Greater Portland and Casco Bay, Maine Case Study." Fogler Library, University of Maine, 2005. http://www.library.umaine.edu/theses/pdf/BakerTD2005.pdf.

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20

Barton, Paul. "Enhancing separation of fats, oils and greases (FOGs) from catering establishment wastewater." Thesis, Cranfield University, 2012. http://dspace.lib.cranfield.ac.uk/handle/1826/8052.

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Removal of fats, oils and greases (FOG) from commercial food premises prior to discharge of wash waters into the sewer is critical in restricting blockage events. The FOG droplets that form are commonly removed in passive gravity separators. Enhanced separation through design modification, would allow a reduction in size required to achieve target removal. The aim of the project was to determine the feasibility of enhancing removal of FOGs in gravity separation devices and or in post treatment units. The thesis work examined the effect characteristics of oil droplet size and density had on FOG

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21

Heiss, Mary Ann. "The United States, Great Britain, and Iranian Oil, 1950-1954 /." The Ohio State University, 1991. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487758680161025.

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22

Parry-Jones, Alison. "The development and application of novel analytical techniques in the determination of geographical origin and adulteration of vegetable oils." Thesis, University of South Wales, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.364875.

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23

Lunde, Amaris. "Rural development and sustainable agriculture in the European Union Mediterranean : a case study on olive oil production in Kefalonia, Greece /." Online version, 2007. http://content.wwu.edu/cdm4/document.php?CISOROOT=/hcc&CISOPTR=2385&REC=14.

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24

Kanwar, Ranvir Singh. "States, firms, and oil : British policy, 1939-54." Thesis, University of Warwick, 2000. http://wrap.warwick.ac.uk/55809/.

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New evidence from the records of the Anglo-Iranian Oil Company (now British Petroleum) and Shell for the period, 1939-45 supplements accounts of British oil relations based on state archives. This historical account demonstrates the continuity between the interwar industry cartel and the Allied wartime collaboration orchestrated through industry committees. The companies made use of their quasi-official position to manage crisis of prewar arrangements aggravated by the war which presaged the rapid expansion of postwar Middle East production. The companies then shaped the Anglo-American Oil Agr

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25

Acharya, Ashwini. "Characterization of spherical boron nitride-filled greases for thermal interface material applications." Diss., Online access via UMI:, 2006.

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Thesis (M.S.)--State University of New York at Binghamton, Thomas J. Watson School of Engineering and Applied Sciences, Systems Science and Industrial Engineering Department, 2006.<br>Includes bibliographical references.

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26

Zhang, Junsong. "Utilization of Fats, Oils and Greases in Biodiesel Production: From to Market Study to Technical Feasibility." University of Cincinnati / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1511801164066707.

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27

Zhang, Wen Ting. "A comparartive case study of environmental disclosure in the oil industries of China and the UK." Thesis, University of Macau, 2018. http://umaclib3.umac.mo/record=b3959234.

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28

Raibon, Elsa. "Greffe et modèles animaux de dégénerescence rétinienne : étude de la réponse microgliale." Poitiers, 2004. http://www.theses.fr/2004POIT2358.

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29

Gasperi, Renata de Lima Pereira de. "Caracterização de resíduos de caixas de gordura e avaliação da flotação como alternativa para o pré-tratamento." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/18/18138/tde-12062013-145456/.

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Caixas de gordura são dispositivos para retenção de material gorduroso, de origem animal e vegetal, proveniente de pias de cozinha. Sua instalação é exigida por muitos municípios para liberação de ligações de esgoto, visando reduzir as concentrações de óleos e graxas (OG) lançadas no sistema público de coleta e tratamento. Um fator primordial para que estas caixas cumpram suas funções é o estabelecimento de rotinas de manutenção envolvendo inspeção e limpeza periódica. A instalação de locais para recebimento e pré-tratamento dos resíduos retirados das caixas de gordura pode incentivar boas prá

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30

Porter, Altic Lucas Eli. "Characterization of the Esterification Reaction in High Free Fatty Acid Oils." Scholar Commons, 2010. http://scholarcommons.usf.edu/etd/3582.

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Energy and vegetable oil prices have caused many biodiesel producers to turn to waste cooking oils as feedstocks. These oils contain high levels of free fatty acids (FFAs) which make them difficult or impossible to convert to biodiesel by conventional production methods. Esterification is required for ultra-high FFA feedstocks such as Brown Grease. In addition, ultrasonic irradiation has the potential to improve the kinetics of the esterification reaction. 2-level, multi-factor DOE experiments were conducted to characterize the esterification reaction in ultra-high FFA oils as well as determin

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31

BOCHU, FREDERIC. "Oeil et greffes de moelle osseuse : etude realisee a propos de 26 cas d'allogreffe et de 12 cas d'autogreffe." Lille 2, 1988. http://www.theses.fr/1988LIL2M063.

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32

Cerletti, F. "Engaging with the Total oil corporation in Myanmar : the impact of dialogue as a tool for change towards greater conflict sensitivity." Thesis, Coventry University, 2013. http://curve.coventry.ac.uk/open/items/150fa304-132f-411b-9d3b-4c078c949d59/1.

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This thesis explores whether dialogue between a company and a non-profit organisation (NPO) can influence a company’s way of working towards being more conflict sensitive. As a case-study I analysed the dialogue between the French oil and gas company, Total S.A. (Total), and the US based NPO, CDA Collaborative Learning Projects (CDA) relating to the company’s operations in Myanmar/Burma. The objectives of the research were to ascertain if dialogue had a positive impact, and if so, what it was about the dialogue that enabled change, what was the process of change that could be observed and how

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33

Wink, Judy. "Great horned owl nestling behavior /." Instructions for remote access. Click here to access this electronic resource. Access available to Kutztown University faculty, staff, and students only, 1985. http://www.kutztown.edu/library/services/remote_access.asp.

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Thesis (M.S.)--Kutztown University of Pennsylvania, 1985.<br>Source: Masters Abstracts International, Volume: 45-06, page: 3047. Typescript. Abstract precedes thesis as preliminary leaves [1-2] Includes bibliographical references (leaves 64-66).

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Mildwaters, Kenneth Charles. "Joint operating agreements : a consideration of legal aspects relevant to joint operating agreements used in Great Britain and Australia by participants thereto to regulate the joint undertaking of exploration for petroleum in offshore areas, with particular reference to their rights and duties." Thesis, University of Dundee, 1990. https://discovery.dundee.ac.uk/en/studentTheses/5dcad35d-c9b3-4bc7-9f71-79e19ba06d80.

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This thesis examines the joint venture relationship in the context of the exploration phase of the development of an oil and gas field in Great Britain and Australia. It considers a number of issues relating to the relationship between the Participants of a typical Joint Operating Agreement within the legal regimes of Great Britain and Australia. Against this background the main issues addressed in this thesis are- 1. the nature of the joint venture?; 2. the relationship between the Participants inter se; and 3. the relationship between the Operator and the Participants. In addressing these is

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Johnston, Jennifer Lynn Atkinson Samuel F. "Home range analysis of rehabilitated and released great horned owls (Bubo virginianus) in Denton County, Texas, through radio telemetry." [Denton, Tex.] : University of North Texas, 2007. http://digital.library.unt.edu/permalink/meta-dc-5159.

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36

Corregliano, Danilo Uler. "O sistema de controle judicial do movimento grevista no Brasil: da greve dos petroleiros em 1995 aos dias atuais." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/2/2140/tde-08122014-101712/.

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As reflexões aqui propostas buscam compreender a maneira com que o Poder Judiciário brasileiro se posiciona diante das greves, principalmente a partir da greve dos petroleiros em 1995. Trabalha-se com a hipótese de um sistema de controle judicial do Direito do Trabalho. Para tanto, são analisados tanto a greve quanto este sistema, mediante uma leitura crítica da doutrina jurídica, política e sociológica correspondentes. Estabelecendo-se estas determinações estruturais, torna-se possível caracterizar o assim chamado sistema de controle judicial em uma de suas funções primordiais na totalidade c

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37

Nakov, Anton. "Essays on the Liquidity Trap, Oil Shocks, and the Great Moderation." Doctoral thesis, Universitat Pompeu Fabra, 2007. http://hdl.handle.net/10803/7360.

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The thesis studies three distinct issues in monetary economics using a common dynamic general equilibrium approach under the assumptions of rational expectations and nominal price rigidity.<br/> The first chapter deals with the so-called "liquidity trap" - an issue which was raised originally by Keynes in the aftermath of the Great Depression. Since the nominal interest rate cannot fall below zero, this limits the scope for expansionary monetary policy when the interest rate is near its lower bound. The chapter studies the conduct of monetary policy in such an environment in isolation from

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Johnston, Jennifer Lynn. "Home range analysis of rehabilitated and released great horned owls (Bubo virginianus) in Denton County, Texas, through radio telemetry." Thesis, University of North Texas, 2007. https://digital.library.unt.edu/ark:/67531/metadc5159/.

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Raptor rehabilitation has become commonplace globally, yet studies on the survival and adaptation of great horned owls (Bubo virginianus) after release has been neglected to an appreciable extent. The primary objective of this study is to provide quantitative data on the success of rehabilitated and released great horned owls in the North Texas region. Owls (N=12) were rehabilitated and released onto the Ray Roberts Greenbelt Corridor in Denton County, Texas, and monitored using radio telemetry to evaluate home range (November 2002 - February 2005). With approximately 75% of the birds released

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Pires, Helenice Aparecida [UNESP]. "Tratamento de efluente da industrialização de pescado com sistema de ultrafiltração." Universidade Estadual Paulista (UNESP), 2017. http://hdl.handle.net/11449/151481.

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Pires, Helenice Aparecida. "Tratamento de efluente da industrialização de pescado com sistema de ultrafiltração /." Araçatuba, 2017. http://hdl.handle.net/11449/151481.

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Orientador: Elisa Helena Giglio Ponsano<br>Banca: Sandra Maria de Melo<br>Banca: Manoel Garcia Neto<br>Resumo: A indústria de pescado vem se desenvolvendo para atender à crescente demanda do mercado e, concomitantemente, vem aumentando a quantidade de resíduos descartados em função do processamento. O efluente gerado pelas indústrias de pescado contém matéria orgânica com potencial poluente e, por isso, deve ser tratado previamente ao descarte. Os sistemas de filtração vêm ganhando notoriedade nesse sentido. Assim, o objetivo deste trabalho foi verificar o potencial da operação de ultrafiltraç

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41

Colliac, Jean-Philippe. "Correction optique des amétropies par photoablation cornéenne." Toulouse 3, 1997. http://www.theses.fr/1997TOU30276.

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On se propose, dans le cadre de la keratectomie photorefractive, de calculer l'epaisseur du tissu corneen a retirer, afin de donner au dioptre corneen anterieur la courbure souhaitee et ainsi corriger les ametropies de l'il. L'analyse montre que le systeme optique oculaire, constitue de plusieurs dioptres successifs, peut etre etudie dans l'approximation lineaire (approximation de gauss) ; dans ces conditions la methode matricielle s'avere commode et efficace. Les modifications du dioptre corneen sont realisees par chirurgie refractive a l'aide de lasers excimeres ; au cours des cinq dernieres

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Young, Bradley. "Enhancement of the Mesophilic Anaerobic Co-digestion of Municipal Sewage and Scum." Thesis, Université d'Ottawa / University of Ottawa, 2012. http://hdl.handle.net/10393/23530.

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Scum is an integral component of solids management in MWWTP and is composed of fats, oils, grease and other entrained floatable materials that are collected during primary clarification. Lab scale BMP tests showed the addition of 14.5 g VS/L of scum exhibited the greatest increase in biogas production of 1.6 times per g VS added compared to the control, while a higher additional scum loading of 33.7 g VS/L reduced the biogas yield to 32% of the control reactor. Lab scale semi-continuous digestion measured the effects of scum loading and temperature of pretreatment in the scum concentrator. At

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Crytzer, Sarah. "Comparing media coverage of the Gulf oil spill in the US and UK implications for global crisis communication." Master's thesis, University of Central Florida, 2011. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4877.

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The following research is a content analysis of 114 articles written by the American and British news media outlets in the first month following the BP Gulf oil spill in April 2010. The goal of the research was to identify any dominant frames evident in the reports and to compare the two countries to see if there was a difference in the dominant frames used. Positive, negative, and neutral tones were also evaluated to determine if there was a difference between the countries. The results show that both countries reports predominantly used an ecology and action frame, while British media outlet

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Aldosary, Huda A. KH. "Polycyclic Aromatic Hydrocarbon Degradation by Anaerobic Bacteria from the Great Artesian Basin." Thesis, Griffith University, 2020. http://hdl.handle.net/10072/393639.

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The Great Artesian Basin (GAB) is a vast subterranean thermal aquifer system underlying over 20% of the Australian continent. Substantial reserves of oil, gas and minerals exist within the GAB and combined with industrial activities can often contaminate the groundwaters. The current study investigated the bacterial ecology of bore waters that were in or close to oil deposits. Three sites were selected, two in the Quilpie/Eromanga region of Queensland (Naretha bore registered number 4022 and Adavale bore registered number 305), and the other in the Moomba oil field of South Australia (Moomba b

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Schulwitz, Sarah E. "Informing Conservation Management Using Genetic Approaches: Greater Sage-Grouse and Galápagos Short-Eared Owls as Case Studies." Thesis, University of North Texas, 2016. https://digital.library.unt.edu/ark:/67531/metadc849663/.

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Small isolated populations are of particular conservation interest due to their increased extinction risk. This dissertation investigates two small wild bird populations using genetic approaches to inform their conservation. Specifically, one case study investigated a Greater Sage-grouse (Centrocercus urophasianus) population located in northwest Wyoming near Jackson Hole and Grand Teton National Park. Microsatellite data showed that the Jackson sage-grouse population possessed significantly reduced levels of neutral genetic diversity and was isolated from other Wyoming populations. Analysis w

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Hill, Mark. "The British North Sea: The Importance Of And Factors Affecting Tax Revenue From Oil Production." BYU ScholarsArchive, 2004. https://scholarsarchive.byu.edu/etd/4229.

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The oil industry is the richest and most influential industry in the world. The industry has moved the fates of nations. Oil is required to fight wars and exert power, and the restriction of this energy source is paramount to the restriction of movement, control, and in the end, power. Management of this resource and the tax revenue it generates are of serious strategic importance, both domestically and internationally. Understanding the results of taxation for this important commodity is important to international relations as well. The tax system affects tax revenue, government actions, oil

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Liosatou, Georgia. "The use of essential oils of thyme, lavender and sage on the control of the disease caused by Pythium ultimum on tomato in Greece." Thesis, University of Reading, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.558763.

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The effect of 10 essential oils (basil, thyme, pine needle, geranium, orange, rosemary, grapefruit, lavender, peppermint, sage) were tested in vitro against Pyfhium ultimum. Oils of thyme, lavender and sage were most efficient and were selected to be used in in vivo experiments. Minimum Inhibitory Concentration (MIC) was established at 400 μLL-1 for thyme and 700 μLL-1 for sage and lavender. The effect of essential oil volatiles and of the direct contact of the oils with the fungus were also tested and were found to have detrimental effects on its hyphae. The appropriate dose of oil solution w

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Rodrigues, Bárbara Martins. "Utilização da eletrofloculação para tratamento de água de produção." Universidade do Estado do Rio de Janeiro, 2008. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=2586.

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A demanda para tratamento de efluentes industriais tem sido maior a cada dia e a indústria tem buscado melhoria constante nos processos para tratamento. Nesse contexto, a eletrofloculação surge como uma técnica promissora, devido à sua eficiência, econômica e ambiental, com possibilidade de reuso da água. O presente trabalho tem como objetivo estudar o tratamento de água de produção de plataforma de petróleo, pelo processo de eletrofloculação, em reator batelada, com eletrodo de alumínio. Foi avaliada a influência de parâmetros como: condutividade, pH, intensidade de corrente aplicada e tempo

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Pauzé, Marc D. "Predation by great horned owls and red-tailed hawks in a prairie landscape enhanced for waterfowl." Thesis, McGill University, 2002. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=29464.

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Several species of raptors are found in prairie landscapes managed and enhanced for waterfowl. Red-tailed Hawks (Buteo jamaicensis ) and Great Horned Owls (Bubo virginianus) may benefit from such management in a manner that is counter to its goals and objectives; that is, waterfowl may comprise a significant proportion of their diet, resulting in a decline in waterfowl numbers. The overall aims of this three-year study were to determine whether the feeding habits of the two raptor species are selective and to determine if waterfowl is a preferred prey group. The diet was determined through pel

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Alvarez, Isabelle. "Étude sur l’évolution du thème des oiseaux de nuit dans la Grèce ancienne, médiévale et moderne." Thesis, Paris 4, 2010. http://www.theses.fr/2010PA040157.

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Cette étude se propose de dégager les variations du thème des oiseaux de nuit dans la Grèce ancienne, médiévale et moderne et de présenter une explication de ces différences en fonction du contexte historique, socioculturel et religieux. Pour la période ancienne, un inventaire des oiseaux de nuit a été établi et les occurrences concernant ces oiseaux dans la littérature, l’histoire, la mythologie et l’art ont été relevées. L’étude des oiseaux de nuit a été reprise à l’époque médiévale suivant la même approche en nous intéressant à la manière dont les principales caractéristiques des oiseaux de

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