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Rozprawy doktorskie na temat „Oila”

Autor: Grafiati

Data publikacji: 2 czerwca 2025

Data aktualizacji: 31 lipca 2025

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1

Roy, Dibakar. "Modification of vegetable oils as a potential base oil and a multifunctional lube oil additive." Thesis, University of North Bengal, 2021. http://ir.nbu.ac.in/handle/123456789/4365.

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2

Soewono, Adri A. "Blending palm oil with flaxseed oil or menhaden fish oil to produce enriched omega-3 oils for deep-fat-frying." Thesis, University of British Columbia, 2007. http://hdl.handle.net/2429/32399.

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Two of the major dietary food sources of omega-3 fatty acids are flaxseed oil and fish oil; the former being a rich source of PUFA (e.g. α-linolenic acid (α-LA)), while the latter is a source of HUFA (e.g. eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA)). In this study, palm oil, a commonly used vegetable oil that is widely available in Asian and African countries, was blended with flaxseed (omega 3-PUFA) and fish oil (menhaden oil) (omega-3 HUFA); respectively, to obtain blended oils that both contained a 1: 4 ratio of omega-3 :omega 6 fatty acids. Rosemary extract (0.02% w/w

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3

Crutchley, Nigel Stuart. "The encapsulation of oils and oil soluble substances within polymer films." Thesis, University of Leeds, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.434758.

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4

Ishlak, Adel. "ALTERING THE FORMATION OF TRANS FATTY ACIDS IN CONTINUOUS CULTURES THROUGH OILS AND NATURAL DIETARY SUPPLEMENTATIONS." OpenSIUC, 2013. https://opensiuc.lib.siu.edu/dissertations/711.

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5

Good, Joanne Elizabeth. "Replacement of dietary fish oil with vegetable oils : effects on fish health." Thesis, University of Stirling, 2004. http://hdl.handle.net/1893/2005.

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The work presented in this thesis examined the effects of dietary fish oil replacement on fish innate and adaptive immune function, disease resistance tissue histopathology and fatty acid composition of lipids in peripheral blood leukocytes. Dietary trials with Atlantic salmon (Salmo salar), Sea bass (Dicentrarchus labrax), Atlantic cod (Gadus morhua) and Arctic char (Salvelinus alpinus) were conducted in which fish oil was replaced by rapeseed oil, linseed oil, olive oil, palm oil, echium oil or a mixture of these oils. A significant reduction in respiratory burst activity was most pronounced

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6

O'Hagan, Stephen Graham. "The analysis of engine oils and engine oil additives by mass spectrometry." Thesis, University of Warwick, 1988. http://wrap.warwick.ac.uk/74539/.

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Chapter I presents an overview of mass spectrometry on double focusing instruments. Special attention is paid to ionisation methods which may be of use in mixture analysis. In chapter II, following a brief introduction to chemometrics, results of the application of factor analysis to the problem of determining the components of a mixture from mass spectra of simple mixtures are given. After applying the technique to simulated data, the results of applying the technique to simple mixtures and to the deconvolution of overlapping GC/MC spectra are given. It is concluded that provided the pure com

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7

Guo, Yan. "Alkaline-catalyzed production of biodiesel fuel from virgin canola oil and recycled waste oils." Click to view the E-thesis via HKUTO, 2005. http://sunzi.lib.hku.hk/hkuto/record/B36584927.

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8

McLellan, Jill Fraser. "Ene addition reactions involving jojoba bean oil, triglyceride vegetable oils and synthetic lubricant fluids." Thesis, University of Edinburgh, 1995. http://hdl.handle.net/1842/11137.

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Ene addition reactions involving jojoba bean oil (a wax ester), sunflower oil (a triglyceride) and the synthetic fluids polyisobutene and polyalphaolefin have been investigated. Several enophiles have been employed, including azo compounds [diethyl azodicarboxylate (DEAD), 4-phenyl-1-1,2,4-triazoline-3,5-dione (PTAD) and 4-methyl-1,2,4-triazoline-3,5-dione (MTAD)], a sulfinyl compound [<I>N</I>-sulfinyl-<I>p</I>-toluenesulfonamide (TosNSO)] and formaldehyde. In order to investigate the scope of these reactions, and to gain spectral information for use in the analysis of more complex product mi

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9

Sabally, Kebba. "Lipase-catalyzed synthesis of selected phenolic lipids in organic solvent media." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=102161.

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Lipase-catalyzed esterification and transesterification reactions of selected phenolic acids with lipids were investigated in organic solvent media. The esterification of linoleyl alcohol with dihydrocaffeic acid (DHA) in neat hexane medium resulted in highest esterification yield (EY) of 17% when a Candida antarctica lipase (Novozym 435) was used to catalyze the reaction. The use of co-solvents t-butanol and 2-butanone with hexane resulted in a dramatic increase in EY. The highest EY of 83% was obtained in hexane:2-butanone mixture of 85:15 (v/v) using Novozym 435; however lower EY (40%) was

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10

Ye, Yisha. "Proteomics study of the effects of fish oil and corn oil enriched diet on membranous nephritis." Click to view the E-thesis via HKUTO, 2008. http://sunzi.lib.hku.hk/hkuto/record/B40887753.

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11

Clark, Amanda. "Melaleuca Alternifolia Concentrate (MAC): A Plant-Derived Anticancer Agent." Thesis, Griffith University, 2013. http://hdl.handle.net/10072/367678.

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Natural products historically represent a source of clinically approved drugs that have contributed significantly to anticancer drug development. In particular, essential oils represent a group of advantageous anticancer candidates as not only can they be produced in large quantities in a cost-effect manner but they also exhibit minimal toxicity. Melaleuca alternifolia Concentrate (MAC) is an extract prepared from the native Australian plant M. alternifolia (also a common source of Tea Tree Oil). Melaleuca oils are commonly used products, primarily utilised and investigated for their antimicro

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12

Ratoi, Monica. "The design of lubricating oil in water emulsions." Thesis, Imperial College London, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243558.

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13

Nahaisi, Mohamed Hadi. "Growth and survival of Lactobacillus acidophilus." Thesis, University of Reading, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.242433.

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14

Davidson, James Alexander. "Applications of acoustic measurements in shale stability research /." Digital version accessible at:, 1999. http://wwwlib.umi.com/cr/utexas/main.

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15

Angle, Chandrawatee W. "Stability of heavy oil emulsions in turbulent flow and different chemical environments." Thesis, University of Manchester, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.547848.

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16

Cooke, Alison. "A pilot study to examine the feasibility and acceptability of assessing the effect of topical oils on term babies' skin barrier function : the OBSeRvE (Oil in Baby SkincaRE) Study." Thesis, University of Manchester, 2015. https://www.research.manchester.ac.uk/portal/en/theses/a-pilot-study-to-examine-the-feasibility-and-acceptability-of-assessing-the-effect-of-topical-oils-on-term-babies-skin-barrier-function-the-observe-oil-in-baby-skincare-study(a6f715cd-f897-4d15-941d-7ae86d5e06c4).html.

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Background: The differential effects of using topical oils for the prevention or treatment of baby dry skin on skin barrier function may contribute to the development of childhood atopic eczema. Prevalence of atopic eczema has increased from 5% of children aged 2 to 15 years in the 1940s, to approaching 30% more recently. This increase cannot be attributed to genetic changes. It is likely that increases stem from environmental factors, including the increased use of some inappropriately formulated commercial and natural baby skincare products. Midwives, health visitors and other maternity serv

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17

Osindero, Adeyemi O. "Exothermicity and oxidative kinetics of light crude oils for air injection improved oil recovery (IOR) processes." Thesis, University of Bath, 2000. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.340994.

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18

Nottegar, Marco. "The effects of particulates on the ultrafiltration of bilge, oily, wastewater containing new or used lubrication oil." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape3/PQDD_0021/MQ57151.pdf.

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19

Mulligan, Bonnie Lynn. "Implementation of Standard and Modified Soy Oils as Substitutes for Fish Oil in Feeds for Nile Tilapia." OpenSIUC, 2013. https://opensiuc.lib.siu.edu/theses/1135.

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Seafood is the number one source of essential fatty acids, particularly, long-chain polyunsaturated fatty acids (LC-PUFA) in the human diet. As global population growth eventually surpasses what the world's wild commercial stocks can provide, reliance on the aquaculture industry to expand production will continue to increase in order to meet the demands of consumers worldwide. Currently, fluctuations in supply and cost coupled with environmental sustainability and contaminant concerns have motivated the aquaculture industry to research alternative lipid sources and feeding strategies in order

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20

Stefanus, Titania Vaida. "A case study of factors impacting on marketing of South African fish oil in the animal feed market." Thesis, Peninsula Technikon, 2002. http://hdl.handle.net/20.500.11838/1020.

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Thesis (MTech (Business Administration))--Peninsula Technikon, Cape Town, 2002<br>The growing and declining demand of the different fish oil application markets. The price of heavy furnace oil compared to fish oil selling price. (Heavy furnace oil is used to generate energy) . The research also investigated the impact of low price fish oil substitutes on the South African fish oil producers. The most important substitute in the current South African majority market, the animal feed market, is vegetable oils. The research finding is that the South African fish oil producers must follow

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21

Khan, Muhammad Ahmad. "Oxidative stability of stripped and non-stripped borage and evening primrose oils and their oil-in-water emulsions." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape7/PQDD_0015/MQ54901.pdf.

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22

Rahman, S. M. Ashrafur. "Experimental investigation of essential oils in a diesel engine." Thesis, Queensland University of Technology, 2018. https://eprints.qut.edu.au/121763/2/__qut.edu.au_Documents_StaffHome_StaffGroupH%24_halla_Desktop_S.%20M.%20Ashrafur%20Rahman%20Thesis.pdf.

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The potential use of waste stream essential oils were evaluated as fuel supplements for diesel vehicle/machinery used by producers of these oils. Orange, eucalyptus and tea tree oils were selected; which are native to and/or extensively cultivated throughout Australia. These essential oils are mainly used in the medical and natural therapy sector as well as fragrance and flavouring industry. The high quality of the final product leads to a significant very low value waste stream. Engine performance and emissions evaluation showed that essential oils are comparable to diesel fuel. Their use wil

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23

Bandara, Aloka B. "Modifying Fatty Acid Composition of Bovine Milk by Abomasal Infusion or Dietary Supplementation of Seed Oils or Fish Oil." Diss., Virginia Tech, 1997. http://hdl.handle.net/10919/26254.

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The potential for enhancing oleic acid (cis-18:1) and linoleic acid (18:2) content and lowering medium chain fatty acid (MCFA) content of bovine milk was investigated by abomasal infusion or dietary supplementation of oils. In experiment 1, olive oil, sesame oil, sunflower oil, or fish oil was abomasally infused (155 to 219 g/d) into Jersey cows during the last 6 d of each of four 14-d periods. In experiment 2, canola oil, olive oil, high-oleic sunflower oil, or distilled water (control) was abomasally infused (342 to 371 g/d) into three Holsteins and three Jerseys during the last 5 d of each

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24

Ye, Yisha, and 葉伊莎. "Proteomics study of the effects of fish oil and corn oil enriched dieton membranous nephritis." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2008. http://hub.hku.hk/bib/B40887753.

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25

Nasif, Ammar. "Hyphenated mass spectrometry methods for the direct characterisation and quantification of polar molecules in crude oil or modified crude oils." Thesis, University of Southampton, 2016. https://eprints.soton.ac.uk/414109/.

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Crude oil is arguably one of the most complex organic mixture in nature. Therefore, crude oil characterisation requires the use of high resolution and high mass accuracy mass spectrometer such as FT-ICR MS; needed to resolve thousands of ions and assign their elemental formulae. Different heteroatom containing compounds classes are present in crude oil such as N1, S1 and O2 containing compounds. These compounds cause variety of different problems such as N containing compounds cause catalyst deactivation for processes such as hydrodesulfurisation. The choice of the ionisation technique and its

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26

Hetherington, Alexandra Claire. "Life cycle assessment of the production of edible oil emulsions : comparing a novel process route using aqueously extracted oil-bodies against existing technology." Thesis, University of Bath, 2014. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.618761.

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It is estimated that over a third of the diet in the Western world is made up of oils and fats, of which a prominent percentage is in the form of emulsion food products, including milks, creams, yoghurts, margarines, salad dressings, desserts, soups and cheese. Current processing techniques involve the extraction and refining of edible oils using high temperatures and organic solvents, followed by re-encapsulation of the oil, for incorporation into the required emulsion products. The research presented in this PhD thesis was performed within the auspices of the UK Department of Environment, Fo

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27

Mekem, Sonwa Mesmin. "Isolation and structure elucidation of essential oil constituents comparative study of the oils of Cyperus alopecuroides, Cyperus papyrus, and Cyperus rotundus /." [S.l.] : [s.n.], 2000. http://www.sub.uni-hamburg.de/disse/372/diss.pdf.

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28

Mokhtari-Fard, Ahmad Chemistry Faculty of Science UNSW. "Method development in electrospray ionisation fourier transform ion cyclotron resonance mass spectrometry study of plant oils - macadamia oil as a model." Publisher:University of New South Wales. Chemistry, 2008. http://handle.unsw.edu.au/1959.4/43114.

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A novel analytical method is developed to examine the chemical composition of plant oils by electrospray ionisation high-resolution Fourier transform ion cyclotron resonance mass spectrometry in both positive- and negative-ion modes. To date, this is the first reported application of this technique for the study of macadamia nut oil. Samples of macadamia nut oil from the Macadamia Integrifolia- Proteaceae family (smooth shell) are examined. The fatty acid profile of the oil is obtained by this mass spectrometric examination of the transesterified and hydrolysed oil samples. The Fourier transfo

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29

Zhang, Ningsheng. "Study of permeability alteration associated with the invasion of oil droplets and solid particles in produced oily water into porous media." Thesis, Heriot-Watt University, 1994. http://hdl.handle.net/10399/1410.

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30

Holder, Edith L. "Use of the Baffled Flask Test to Evaluate Eight Oil Dispersant Products and to Compare Dispersabiity of Twenty Three Crude Oils." University of Cincinnati / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1313773758.

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31

Azadmard-Damirchi, Sodeif. "Olive oil : phytosterols, tracing of adulteration with hazelnut oil and chemical interesterification /." Uppsala : Dept. of Food Science, Swedish University of Agricultural Sciences, 2007. http://epsilon.slu.se/200736.pdf.

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32

Guo, Yan, and 郭芃. "Alkaline-catalyzed production of biodiesel fuel from virgin canola oiland recycled waste oils." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2005. http://hub.hku.hk/bib/B36584927.

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33

Srđan, Sokolović. "Istovremeni uticaj permeabilnosti sloja, prečnika vlakna i ulazne koncentracije uljne faze na separaciju mineralnih ulja iz otpadnih voda." Phd thesis, Univerzitet u Novom Sadu, Tehnološki fakultet Novi Sad, 2020. https://www.cris.uns.ac.rs/record.jsf?recordId=114057&source=NDLTD&language=en.

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Cilj ove doktorske disertacije je da dâ doprinos u proučavanju nedovoljno poznatih fenomena koalescentne filtracije, kako bi se smanjio obim potrebnih poluindustrijskih istraživanja prilikom projektovnja filtera za neku konkretnu primenu. Svi materijali kori&scaron;ćeni u ovoj doktorskoj disertaciji su otpadni materijali, čija primena kao filtarskog punjenja predstavlja poseban doprinos održivom razvoju. Jedan od ciljeva ove doktorske disertacije je proučavanje istovremenog uticaja promene permeabilnosti sloja i debljine vlakana na osobine sloja, pad pritiska i efikasnost separacije disp

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34

Ellis, Lisa Marie. "Oil monitoring with an optically stimulated contact potential difference sensor." Thesis, Available online, Georgia Institute of Technology, 2004:, 2004. http://etd.gatech.edu/theses/available/etd-07072004-125914/unrestricted/Ellis%5FLisa%5FM%5F200407%5Fmast.pdf.

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Thesis (M.S.)--Mechanical Engineering, Georgia Institute of Technology, 2005.<br>Jiri Janata, Committee Member ; Shreyes Melkote, Committee Member ; Steven Danyluk, Committee Chair. Includes bibliographical references.

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35

Ma, Shuhui. "Characterization of the performance of mineral oil based quenchants using CHTE Quench Probe System." Link to electronic thesis, 2002. http://www.wpi.edu/Pubs/ETD/Available/etd-0823102-180115.

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36

Boglaienko, Daria. "Capture and Densification of Floating Hydrophobic Liquids by Natural Granular Materials." FIU Digital Commons, 2017. http://digitalcommons.fiu.edu/etd/3261.

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Densification and submergence of floating crude oil is proposed as a novel oil spills treatment method. Surface application of dry granular materials (e.g., quartz sand, limestone) on top of a floating oil layer increases the density of the floating oil phase/granule mixture and leads to formation of relatively large and stable aggregates with significant amounts of captured oil. The aggregates separate from the floating hydrophobic phase and settle by gravity. Implementation of this method will reduce the impact radius of a spill and its mobility, preventing direct contamination of beaches, c

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37

Kanczuzewski, Kenson. "IMPLEMENTATION OF TRADITIONAL AND NOVEL SOY OILS AS SUBSTITUTES FOR FISH OIL IN FEEDS FOR HYBRID STRIPED BASS (Morone chrysops x M. saxatilis)." OpenSIUC, 2014. https://opensiuc.lib.siu.edu/theses/1433.

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Traditionally, the aquaculture industry has utilized fish oil in aquafeeds as a source of energy and n-3 long-chain polyunsaturated fatty acids (LC-PUFA). Use of fish oil has the added benefit of increasing the n-3 LC-PUFA content of farmed fish, increasing its nutritional value to human consumers. Aquaculture continues to rely heavily on reduction fisheries and fish oil as the only economically viable source of n-3 LC-PUFA, however this practice is arguably unsustainable. In order to meet growing demand for fish and its associated health benefits, aquafeed ingredients and feeding strategie

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38

León, Ayala Ayda Karina. "Desenvolvimento de uma unidade virtual para desasfaltação de resíduos pesados de petróleo para maximização de óleo desasfaltado e daí óleo lubrificante." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/266912.

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Orientador: Maria Regina Wolf Maciel<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Química<br>Made available in DSpace on 2018-08-18T19:18:20Z (GMT). No. of bitstreams: 1 LeonAyala_AydaKarina_M.pdf: 5765597 bytes, checksum: eb4c8bc57b3d1a4dc8500c81a3ee4f37 (MD5) Previous issue date: 2011<br>Resumo: O aumento mundial na demanda de energia e o descobrimento de óleo pesado e viscoso por parte da PETROBRAS nos últimos anos têm incrementado o desenvolvimento de novas tecnologias no Brasil para o processamento deste tipo de petróleo, assim como a adequação

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Robelius, Fredrik. "Giant Oil Fields - The Highway to Oil : Giant Oil Fields and their Importance for Future Oil Production." Doctoral thesis, Uppsala University, Department of Nuclear and Particle Physics, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-7625.

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<p>Since the 1950s, oil has been the dominant source of energy in the world. The cheap supply of oil has been the engine for economic growth in the western world. Since future oil demand is expected to increase, the question to what extent future production will be available is important. </p><p>The belief in a soon peak production of oil is fueled by increasing oil prices. However, the reliability of the oil price as a single parameter can be questioned, as earlier times of high prices have occurred without having anything to do with a lack of oil. Instead, giant oil fields, the largest oil

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40

Xu, He Kensinger John W. "Crude oil and crude oil derivatives transactions by oil and gas producers." [Denton, Tex.] : University of North Texas, 2007. http://digital.library.unt.edu/permalink/meta-dc-5106.

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Xu, He. "Crude Oil and Crude Oil Derivatives Transactions by Oil and Gas Producers." Thesis, University of North Texas, 2007. https://digital.library.unt.edu/ark:/67531/metadc5106/.

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This study attempts to resolve two important issues. First, it investigates the diversification benefit of crude oil for equities. Second, it examines whether or not crude oil derivatives transactions by oil and gas producers can change shareholders' wealth. With these two major goals in mind, I study the risk and return profile of crude oil, the value effect of crude oil derivatives transactions, and the systematic risk exposure effect of crude oil derivatives transactions. In contrast with previous studies, this study applies the Goldman Sachs Commodity Index (GSCI) methodology to measure th

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42

Lemke, Matthias, Rebeca Fernández-Trujillo, and Hans-Gerd Löhmannsröben. "In-situ LIF analysis of biological and petroleum-based hydraulic oils on soil." Universität Potsdam, 2005. http://opus.kobv.de/ubp/volltexte/2007/1226/.

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Absorption and fluorescence properties of 4 hydraulic oils (3 biological and 1 petroleum-based) were investigated. In-situ LIF (laser-induced fluorescence) analysis of the oils on a brown sandy loam soil was performed. With calibration, quantitative detection was achieved. Estimated limits of detection were below ca. 500 mg/kg for the petroleum-based oil and ca. 2000 mg/kg for one biological oil. A semi-quantitative classification scheme is proposed for monitoring of the biological oils. This approach was applied to investigate the migration of a biological oil in soil-containing compartments,

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43

Castro, Marcos Daniel Gomes de [UNESP]. "Caracterização do processo de reciclagem do óleo lubrificante usado em postos de combustíveis e identificação de desafios frente à política nacional de resíduos sólidos." Universidade Estadual Paulista (UNESP), 2011. http://hdl.handle.net/11449/93059.

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Made available in DSpace on 2014-06-11T19:26:17Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-07-01Bitstream added on 2014-06-13T20:27:00Z : No. of bitstreams: 1 castro_mdg_me_bauru.pdf: 1085560 bytes, checksum: 95635a24d549815c782ffc8c15f236d8 (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Segundo a Agência Nacional de Petróleo (ANP), o volume de óleo lubrificante comercializado no Brasil, tem contribuido para o crescimento da quantidade de resíduos descartados em postos de combustíveis, assim como outros estabelecimentos. Estes resíduos devem receb

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Almeida, Claudia Aparecida Silva. "Avaliação dos principios fitosterois em oleos vegetais e azeite." [s.n.], 2009. http://repositorio.unicamp.br/jspui/handle/REPOSIP/255268.

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Orientador: Neura Bragagnolo<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia de Alimentos<br>Made available in DSpace on 2018-08-14T07:58:49Z (GMT). No. of bitstreams: 1 Almeida_ClaudiaAparecidaSilva.pdf: 1001464 bytes, checksum: 3c27f65564ffb97e7caaa036a1c438ef (MD5) Previous issue date: 2009<br>Resumo: Foi otimizado e validado um método para determinação dos principais fitosteróis em óleos vegetais, utilizando cromatografia gasosa, eliminando-se a etapa preparativa por cromatografia em camada delgada preconizada no método oficial da AOCS. A etapa de e

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Cooper, W. S. "Characterisation of sulpho oils." Thesis, Liverpool John Moores University, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.375103.

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Eddib, O. A. "Discrimination between olive oils." Thesis, University of Bristol, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.355140.

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Emam, Hebishy Essam Hassan. "Application of ultra high-pressure homogenization (UHPH) in the production of submicron/nano-oil-in-water emulsions using vegetable oils and milk proteins as emulsifiers." Doctoral thesis, Universitat Autònoma de Barcelona, 2013. http://hdl.handle.net/10803/126517.

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The overall goal of the present PhD thesis was to study some factors related to the choice of emulsifier (whey protein isolate or sodium caseinate) concentration, oil-phase volume fractions (10-50%) and homogenization conditions (100-300 MPa) that could influence physical stability and lipid oxidation in nano/submicron oil-in-water emulsions by using a rotor-startor system (colloidal mill, CM, at 5000 rpm for 5 min) for obtaining the coarse emulsions and stabilized by ultra high-pressure homogenization (UHPH), in comparison to conventional homogenization (CH, 15 MPa). Emulsions were character

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Pitkin, Julia. "Oil, Oil, Everywhere: Environmental and Human Impacts of Oil Extraction in the Niger Delta." Scholarship @ Claremont, 2013. http://scholarship.claremont.edu/pomona_theses/88.

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Oil extraction in Nigeria has caused extensive environmental degradation and health problems in many Nigerian communities, particularly in the ecologically sensitive Niger Delta where nearly all of the oil extraction takes place. The reasons for this are complex and have roots in Nigeria’s colonial past. The Nigerian economy is largely reliant on its petroleum resources which, in conjunction with governmental corruption and high international demand for Nigerian oil, has created a system where environmental externalities are largely ignored. Multinational oil companies with little stake in the

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Nartey, Emmanuel Akuffo. "Oil/ Paper Insulation for HVDC: Conductivity of Oil." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for elkraftteknikk, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-13264.

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The work begins with a theoretical description of conductivity and the importance of this material property in the electrical power industry. The various theories describing high voltage conduction in highly insulating dielectric liquids are analysed to ascertain their propensity to explain the exponential rise in the conductivity of the insulating liquid at high fields.The work goes further to analyse the various methods and standards that are presently utilised in the measurement of conductivity of highly insulating oils. The short-comings of the present methods particularly the IEC 61620 an

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Atiku, Farooq Abubakar. "Combustion of bio-oil and heavy fuel oil." Thesis, University of Leeds, 2015. http://etheses.whiterose.ac.uk/12179/.

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The use of combustion parameters to predict what happens to fuel during burning and its effect on living systems is important. This work is directed towards understanding the fundamental chemistry of soot generated from burning biomass-pyrolysis liquid fuels and its mechanism of formation. In this study, fuels such as eugenol, anisole, furfural and some hydrocarbon fuels are subjected to combustion using a wick burner which allowed the burning rate, smoke point and emission factor to be investigated. Reaction zone analysis of flames by direct photography and by using optical filters for furthe

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