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Dissertations / Theses on the topic 'Dodecane'

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Published: 4 June 2021
Last updated: 17 June 2025

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1

Furlong, P. J. J. "Salt effects in nonionic surfactant/dodecane/water systems." Thesis, University of Nottingham, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.235449.

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2

Berrigan, John Daniel. "Nanopowder nickel aluminate for benzothiophene adsorption from dodecane." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/26580.

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Thesis (M. S.)--Materials Science and Engineering, Georgia Institute of Technology, 2009.<br>Committee Chair: Carter, W.B.; Committee Member: Cochran, Joseph; Committee Member: Venugopal, Ganesh. Part of the SMARTech Electronic Thesis and Dissertation Collection.
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3

Efstathiou, Eirini. "Adsorption of novel lubricant additives from dodecane onto solid surfaces." Thesis, University of Hull, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.430985.

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4

Rose, Evan Noah. "Autoignition Dynamics and Combustion of n-Dodecane Dropletsunder Transcritical Conditions." Case Western Reserve University School of Graduate Studies / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=case1554288408975334.

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5

WEHREY-AUGUSTIN, FABIENNE. "Oxydo-reduction du neptunium dans les melanges phosphate tributylique-dodecane." Université Louis Pasteur (Strasbourg) (1971-2008), 1988. http://www.theses.fr/1988STR13007.

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Etude des reactions de dismutation et d'oxydation (parhno::(3)) de np(v) dans les melanges tbp-dodecane. La dismutation de np(v) en milieu perchlorique est une reaction d'ordre 2 par rapport a np. Cinetique et energie d'activation de la reaction
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6

Mao, Laiqun. "Application of Extended DLVO Theory: Modeling of Flotation and Hydrophobicity of Dodecane." Diss., Virginia Tech, 1998. http://hdl.handle.net/10919/29232.

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The extended DLVO theory was used to develop a flotation model by considering both hydrodynamic and surface forces involved in the process. A stream function was used to estimate the kinetic energies for thinning the water films between bubbles and particles, which were compared with the energy barriers, created by surface forces, to determine the probability of adhesion. A general expression for the probability of detachment was derived from similar mechanism for chemical reaction, and the kinetic energy for detachment was estimated with French and Wilson's model. The hydrophobic force parameter (K132) calculated from the rate constants of single bubble flotation tests showed that, K132 for bubble-particle interaction were close to the geometric means of K131 for particle-particle interactions and K232 for bubble-bubble interaction, indicating that the combining rules developed for dispersion forces may be useful for hydrophobic forces. The model was used to predict flotation results as functions of several important parameters such as contact angle, double-layer potentials, particle size, bubble size, etc. The predictions were consistent with experience, and could be explained in view of the various subprocesses considered in the model development. Furthermore, the model suggested optimum conditions for achieving the maximum separation efficiency. The extended DLVO theory was also used to determine the hydrophobic force between two oil/solution interfaces from the equilibrium film thicknesses of dodecylammonium chloride (RNH3Cl) solutions obtained using Thin Film Balance (TFB) technique. The results showed that, the oil droplets were inherently hydrophobic, and the hydrophobic force played an important role in the stability of emulsions. This force decreased with increasing surfactant concentration, and also changed with pH and the addition of electrolyte. The interfacial area occupied by molecules indicated that, the dodecane molecules might present between two surfactant ions at interface, thus the hydrophobicity of oil/solution interface was less sensitive to the addition of the surfactant than that of air/solution interface. Thermodynamic analysis suggested that, there might exist a relationship between the interfacial hydrophobicity and the interfacial tension.<br>Ph. D.
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7

Guerra, Patricia. "Effect of supercritical water on coke formed during dodecane cracking with ZSM-5." Digital WPI, 2018. https://digitalcommons.wpi.edu/etd-theses/1301.

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The objective of this work was to study the effect of supercritical water on coke formed on ZSM-5 during its use as a dodecane cracking catalyst. ZSM-5 coking was quantified at different reaction times, finding that the presence of supercritical water reduced coke formation by an order of magnitude or more. Coked samples were analyzed using several methods, including temperature programmed oxidation (TPO), attenuated total reflectance infrared (ATR-IR) spectroscopy, carbon-13 nuclear magnetic resonance (13C NMR), diffuse reflectance ultraviolet-visible spectroscopy (DR-UV-vis) and UV-Raman. Coked produced in the absence of SCW was formed by polycyclic aromatic hydrocarbons (PAHs) with more than 4 aromatic rings containing alkyl side chains. Coke produced in the presence of SCW was formed by aromatics with 1 to 3 aromatic rings. The characteristics of coke formed in the absence of water on ZSM-5 that had been pretreated in SCW were intermediate to those of coke formed on fresh ZSM-5 in the presence and absence of water, suggesting that the presence of water influences coke properties. It was also verified that SCW can decrease coke formation due to its effect on Bronsted acidity of the catalyst and ability to promote coke gasification. The effect of coke deposits produced in the presence and absence of SCW on the rate of ethanol dehydration, a model reaction studied under diffusion-controlled conditions, indicated that SCD/SWC coke deactivated less the catalyst than SCD coke.
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8

MERDAS, ABDERRAHIM. "Etude d'un systeme ternaire tensioactif non ionique - eau - dodecane. Perturbation induite par une proteine." Paris 5, 1997. http://www.theses.fr/1997PA05S023.

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Nous avons etudie les modifications induites par l'insertion d'une proteine membrannaire de la myeline, le proteo-lipide de folch-pi, dans un systeme forme par un tensioactif non ionique (c 1 2e 4), l'eau et le dodecane. Ce melange forme une phase homogene isotope micellaire l 2 dans le coin riche en huile du diagramme de gibbs. La structure des micelles inverses a ete etudiee en fonction de la temperature et en comparant les mesures de diffusion quasi-elastique du lumiere, de diffusion des rayons x aux petits angles et de viscosite. Les resultats obtenues nous ont permis de montrer que la structure des micelles evolue avec la temperature. En particulier, pres de la transition (phase micellaire l 2 phase lamellaire l ) les micelles s'allongent progressivement favorisant la formation de la phase lamellaire. Ce meme systeme solubilise une quantite substantielle du proteolipide dans une conformation stable, qui conserve la structure tridimensionnelle de la proteine. Nous avons egalement etudie les interactions specifiques presentes entre la proteine et les micelles inverses. En ce qui concerne la phase lamellaire, nous avons developpe un processus d'orientation homeotrope de la phase lamellaire en appliquant la technique du traitement de surface par plasma cf 4 afin de mesurer la constante elastique elastique k de la phase lamellaire par la technique de diffusion quasi-elastique de la lumiere.
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9

Bruening, Christopher. "Decalin Dehydrogenation for In-Situ Hydrogen Production to Increase Catalytic Cracking Rate of n-Dodecane." University of Dayton / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1525100991525704.

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10

Diedericks, Danie. "Microbial oxidation of dodecane and tridecane into a,w-dicarboxylic acids using recombinant Yarrowia lipolytica." Master's thesis, University of Cape Town, 2007. http://hdl.handle.net/11427/5377.

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Includes bibliographical references (leaves 137-150).<br>a,w-Dicarboxylic acids are reactive intermediates, widely used as raw materials to synthesise products such as perfumes, hot-melting adhesives, engineering plastics and high quality lubricants. These acids can be obtained via chemical or biological routes by using various feedstocks such as linear alkanes. Linear alkanes are chemically inert; hence, the production of reactive products requires complex and sophisticated reactions catalysed by either catalysts or enzymes. However, simultaneous by-product formation on chemical synthesis increases production cost and limits commercial availability, preventing their widespread application. Biological routes alternatively, selectively transform linear alkanes into fatty and a,w-dicarboxylic acids. Linear alkanes, due to their relative abundance and increased availability, following the expansion of gas-to-liquid fuels technology, are viewed as prospective feedstocks for the microbial production of a,w-dicarboxylic acids. The commercialisation of the biological conversion of linear alkanes is constrained by the low turnover frequency of the cytochrome P450 hydroxylase complex responsible for catalysing the first and rate limiting step of the monoterminal and diterminal pathways. Low product yields may be caused by the further catabolism of a,w-dicarboxylic acids, through the ~-oxidation pathway into energy, carbon dioxide and water. To prevent this, metabolic engineering techniques can be applied to prevent ~-oxidation by disrupting the genes encoding the enzyme catalysing the first step in the~-oxidation pathway. The specific productivity of bioconversion can then be increased further by over-expressing the genes encoding the cytochrome P450 hydroxylase complex. Recombinant Yarrowia lipolytica strains TVN 497, TVN 499, TVN 501 and TVN 502 were developed in such a manner by the collaborating research group at the University of the Free State and made available for this research.
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11

Zaker, Azadeh. "Supercritical Water Assisted Zeolite Catalyzed Upgrading of Hydrocarbons." Digital WPI, 2019. https://digitalcommons.wpi.edu/etd-dissertations/579.

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Previous studies have successfully used near and supercritical water (SCW) for cracking and desulfurization of heavy crude oil and bio-oil, suppressing coke formation as a low-value by-product. Some of these studies benefited from using zeolite catalysts to increase the activity and selectivity toward targeted products; however, in depth studies are required to identify the role of water on zeolite catalysis under supercritical condition. Using three common zeolites, ZSM-5, HY, and β for supercritical water cracking of dodecane at 400°C, 24±2 MPa (in a 100 ml batch reactor), we showed that ZSM-5 is the only catalyst that partially retains its crystalline structure and activity under hydrothermal conditions. Further characterization of the ZSM-5 (used under 50/50 wt% SCW/dodecane feed) revealed 95% decrease in Brønsted acid site (BAS) density and 80% decrease in microporous area after 2 h reaction time. However, compared to the runs where SCW was absent, the apparent dodecane cracking rate constant in SCW decreased only by a factor of 2.6. Examining catalytic activity of ZSM-5 degradation products and re-using ZSM-5 showed that the unexpected activity cannot be ascribed to ZSM-5 degradation products. Using a group-type model, we showed that SCW accelerated gas and suppressed coke formations. Additionally a coke gasification pathway was suggested to account for formation of CO and CO2 in the presence of SCW. Additional experiments with two different ZSM-5 particle sizes suggested that dodecane cracking reaction is diffusion-limited in the absence of SCW and reaction-limited in its presence. Zero length chromatography of calcined and hydrothermally treated ZSM-5 showed 10 times greater apparent diffusivity for un-treated catalyst. This, according to Weisz-Prater analysis, suggested a 250 times greater dodecane surface concentration in the absence of SCW. We successfully optimized the water content of feed (5-15 wt%) to decrease the destructive effects of SCW on the structure, increase the selectivity toward BTEX products and eliminate coke formation.
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12

Prantsidou, Maria. "Plasma methods for the clean-up of organic liquid waste." Thesis, University of Manchester, 2014. https://www.research.manchester.ac.uk/portal/en/theses/plasma-methods-for-the-cleanup-of-organic-liquid-waste(9dab7afe-fcfa-44d1-97f5-c9e1340c96df).html.

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This thesis has studied the low-temperature atmospheric pressure plasma as a potential technological application for the degradation of waste oils. The study has been approached initially by investigating the degradation of oil in gas phase only, in order to understand the gas chemistry and elucidate the plasma-chemical degradation mechanism. Gaseous odourless kerosene and dodecane have been used as simulants to waste oil and their plasma-chemical degradation has been studied using a BaTiO3 packed bed plasma reactor and a gliding arc discharge reactor. Kerosene showed similar degradation behaviour to dodecane and the latter one was chosen as a surrogate to allow quantitative analysis. The dodecane plasma degradation efficiency and the distribution of end-gaseous products have been studied under these two reactors in different gas compositions. Optical emission spectroscopy was used to identify intermediate excited species and calculate the rotational and vibrational temperature profiles. Differences in the dodecane degradation gas chemistry between the packed bed and the gliding arc plasma are discussed and postulated mechanisms are presented for each condition. Gliding arc discharge demonstrates higher degradation efficiency and it will be used mainly for the plasma-liquid treatment. The plasma-liquid dodecane treatment is firstly studied using argon dielectric barrier discharge. The effect of different reactor configuration, humidity and temperature to the discharge characteristics and degradation efficiency will be discussed. The study of the liquid dodecane degradation is extended by using the gliding arc discharge. Using N2 and Ar in both dry and humid conditions for the batch treatment of dodecane, the degradation efficiency, gas chemistry and liquid chemistry are discussed and correlated to the gas chemistry observed during the plasma treatment of gaseous dodecane under the same conditions, in order to gain an overall understanding of the plasma-liquid clean-up process. Finally, the gliding arc plasma treatment of liquid dodecane is studied using the recycling method and shows a significant improvement to the degradation efficiency.
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13

Smith, Bradley Joseph. "Steam-Assisted Catalysis of n-Dodecane as a Jet Fuel Analogue in a Flow Reactor System for Hypersonic Thermal Management." University of Dayton / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1577978953025703.

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14

Kumar, Kamal. "Global Combustion Responses of Practical Hydrocarbon Fuels: n-Heptane, iso-Octane, n-Decane, n-Dodecane and Ethylene." online version, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=case1169746809.

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15

Xu, Xinhai. "Desulfurization and Autothermal Reforming of Jet-A Fuel to Produce Syngas for Onboard Solid Oxide Fuel Cell Applications." Diss., The University of Arizona, 2014. http://hdl.handle.net/10150/325215.

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Fuel cell is one of the most promising clean energy and alternative energy technologies due to its advantages of low emissions and high efficiency. One application of the fuel cell technology is onboard auxiliary power units (APUs) for power generation in aircrafts, ships, and automobiles. In order to supply hydrogen or syngas for the fuel cell APUs, onboard fuel processing technology was proposed to convert hydrocarbon fuels into syngas through reforming reactions. Two major tasks need to be completed in onboard fuel processing technology. Firstly sulfur compounds have to be removed from hydrocarbon fuels because sulfur can cause reforming catalyst deactivation and fuel cell electrodes poisoning problems. Secondly hydrogen and carbon monoxide shall be produced by reforming of hydrocarbon fuels at a high energy conversion efficiency. This dissertation focused on onboard fuel processing of Jet-A fuel to produce hydrogen and syngas for solid oxide fuel cell (SOFC) APUs. Jet-A fuel was studied because it is the logistic fuel commonly used for civilian airplanes and military heavy duty trucks. Ultra-deep adsorptive desulfurization of Jet-A fuel from over 1,000 ppmw to below 50 ppmw, and autothermal reforming of n-dodecane as a Jet-A fuel surrogate as well as the real desulfurized Jet-A fuel to produce syngas have been systematically investigated in the present study. For the adsorptive desulfurization of Jet-A fuel, a novel NiO-CeO₂/A1₂O₃-SiO₂ adsorbent was proposed and prepared in-house for experimental tests. The sulfur adsorption kinetic characteristic and isotherm at equilibrium were studied in batch tests, and the dynamic desulfurization performance of the adsorbent was investigated in fixed bed tests. Fixed bed tests operation conditions including liquid hourly space velocity (LHSV), adsorbent particle size, and fixed bed dimensions were optimized to achieve the highest adsorbent sulfur adsorption capacity. For the reforming of Jet-A fuel, autothermal reforming (ATR) method was employed and a bimetallic NiO-Rh catalyst was synthesized for the ATR reactions. A lab-scale 2.5 kWt autothermal reforming system including the reformer and balance-of-plant was designed, fabricated, integrated and tested. The reforming system performances at various operation conditions were compared. Reformer operation temperature, steam to carbon ratio and oxygen to carbon ratio, as well as pre-heating temperatures for fuel, air and steam were optimized based on system energy conversion efficiency, H₂ selectivity and COₓ selectivity.
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16

Kurman, Matthew S. Cernansky N. P. Miller David L. "The preignition oxidation chemistry of n-decane and n-dodecane in a pressurized flow reactor and their use as jet fuel surrogate components /." Philadelphia, Pa. : Drexel University, 2010. http://hdl.handle.net/1860/3256.

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17

Mendes, Ana Cristina Mateus. "Optimização da produção de ácido Docosahexaenóico (DHA, 22:6 3) por via fermentiva com meios de cultura alternativos." Doctoral thesis, Universidade de Évora, 2009. http://hdl.handle.net/10174/22806.

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Testou-se o xarope de alfarroba como fonte de carbono alternativa quer para crescimento quer para produção de DHA pela microalga heterotrófica marinha Crypthecodinium cohnii. Numa fermentação em fed-batch, utilizando xarope de alfarroba diluído, suplementado com extracto de levedura e sal do mar, as produtividades em biomassa e em DHA foram 420 mg/Lh e 18,5 mg/Lh, respectivamente, após 100,4 h. Investigou-se o efeito da adição de n-dodecano como vector de oxigénio, no crescimento e na produção de DHA por Crypthecodinium cohnii. Após 86,7 h de fermentação, a concentração de biomassa, a taxa específica de crescimento, os teores de DHA e de ácidos gordos totais foram superiores na fermentação contendo 1% (v/v) de n-dodecano, comparativamente à fermentação de controlo. Foi desenvolvido um procedimento simples e pouco dispendioso que envolve a saponificação e metilação da biomassa húmida, seguidas de winterização e complexação com ureia, de forma sequencial, para concentrar o DHA extraído da biomassa. A fracção mais pura em DHA (99,2% do total de ácidos gordos) foi obtida para uma razão ureia/ácidos gordos de 3,5 (m/m), às temperaturas de cristalização de 4 e 8 °C. ⓿⓿⓿ABSTRACT: Carob pulp syrup was tested as an alternative carbon source for either the heterotrophic marine microalga Crypthecodinium cohnii growth or DHA production. ln a fed-batch fermentation using diluted carob pulp supplemented with yeast extract and sea salt, biomass and DHA productivity were 420 mg/lh and 18.5 mg/lh, respectively after 100.4 h. The effect of n-dodecane as an oxygen vector on Crypthecodinium cohnii growth and DHA production was investigated. After 86.7 h of fermentation, biomass concentration, specific growth rate, DHA and total fatty acid production were higher in the 1% (v/v) n-dodecane fermentation, compared to control fermentation. A simple and inexpensive procedure involving saponification and methylation over wet biomass, winterization and urea complexation in a sequential way has been developed in order to concentrate DHA from algal biomass. The purest DHA fraction (99.2% of total fatty acids) was found at the urea/fatty acid ratio of 3.5 (w/w) at the crystallization temperatures of 4 and 8 °C.
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18

Nilaphai, Ob. "Vaporization and Combustion Processes of Alcohols and Acetone-Butanol-Ethanol (ABE) blended in n-Dodecane for High Pressure-High Temperature Conditions : Application to Compression Ignition Engine." Thesis, Orléans, 2018. http://www.theses.fr/2018ORLE2020/document.

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La préoccupation de plus en plus importante ces dernières décennies, liée à l’épuisement des ressources pétrolières et au réchauffement climatique par les gaz à effet de serre a accentué l’intérêt du butanol comme carburant alternatif dans le secteur des transports grâce à ses propriétés adaptées pour le moteur à allumage par compression. Cependant, le faible rendement des procédés de production et de séparation empêche encore sa commercialisation en tant que carburant. C’est pourquoi le mélange de fermentation intermédiaire de la production de butanol, Acétone-Butanol-Ethanol(ABE), est de plus en plus considéré comme un carburant alternatif potentiel en raison de ses propriétés similaires au butanol et de ses avantages quant à son cout énergétique pour sa fabrication.Dans ce cadre, ce travail a pour objectif d’étudier l’impact des propriétés de différents mélanges d’ABE et n-dodécane en comparaison avec des mélanges d’alcools (éthanol et butanol) sur le processus de pulvérisation et de combustion et ce,pour différentes proportions en volume allant de 20% à 50%. Pour cela, une nouvelle chambre de combustion appelée"New One Shot Engine ", a été réalisée et utilisée car les conditions haute pression et haute température de "Spray-A" (60bars, 800-900 K et 22,8 kg/m³) définies par le réseau Engine Combustion network (ECN) peuvent être atteintes. Autant les phases liquides et vapeur que de combustion ont été caractérisées grâce à l’utilisation des plusieurs techniques optiques (extinction, Schlieren, chimiluminescence d’OH*) dans des conditions non réactives (Azote pur) et réactives (avec15% d'oxygène). Ces résultats expérimentaux ont non seulement permis d’étudier l’impact en oxygène moléculaire et de fournir une nouvelle base de données fiables, mais aussi d’affirmer la possibilité d’utiliser jusque 20% d’ABE en volume dans des moteurs à allumage par compression, grâce à ses caractéristiques de pulvérisation et de combustion similaires au carburant Diesel conventionnel<br>The growing concern in recent decades, linked to the depletion of oil resources and global warming by greenhouse gases has increased the interest of butanol as an alternative fuel in the transport sector. However, the low yield of production and separation processes still prevents its commercialization as a fuel. Therefore, the intermediate fermentation mixture of butanol production, Acetone-Butanol-Ethanol (ABE), is increasingly considered as a potential alternative fuel because of its similar properties to butanol and its advantages in terms of the energy and cost in the separation process.The context of this work aims to study the impact of fuel properties on the spray and combustion processes of ABE mixture and alcohol fuels, blended with the diesel surrogate fuel, n-dodecane, in different volume ratio from 20% to 50%. A new combustion chamber called "New One Shot Engine," was designed and developed to reach the high-pressure and high temperatureconditions of "Spray-A" (60 bar, 800-900 K and 22.8 kg/m³) defined by the Engine Combustion Network (ECN).The macroscopic spray and combustion parameters were characterized by using the several optical techniques (extinction,Schlieren, chemiluminescence of OH*) under non-reactive (pure Nitrogen) and reactive (15% of oxygen) conditions. These experimental results not only made it possible to study the molecular oxygen impact and provide a new accurate database,but also to affirm the possibility of using ABE up to 20% by volume in compression-ignition engines, as its spray and combustion characteristics similar to conventional diesel fuel
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19

Carabott, Philip John. "The Dodecanese question 1912-1924." Thesis, King's College London (University of London), 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.289496.

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20

Grininger, Martin. "The function of the halophilic dodecin." Diss., [S.l.] : [s.n.], 2006. http://edoc.ub.uni-muenchen.de/archive/00006669.

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21

Ḥamdān, ʿImād. "Free solution capillary electrophoresis in the study of drug DNA interactions." Thesis, University of Strathclyde, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.249881.

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22

Bonthuys, Gert Johannes Kotze. "Separation of 1-dodecanol and n-tetradecane through supercritical extraction." Thesis, Stellenbosch : Stellenbosch University, 2008. http://hdl.handle.net/10019.1/2036.

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Thesis (MScEng (Process Engineering))--Stellenbosch University, 2008.<br>Developments in the field of liquid detergents and cosmetics have increased the demand for surfactants, processing aids and emollients. Alcohols are often used in liquid products where they serve as solvents for the detergent ingredients, adjust the viscosity and prevent product separation. Industrial scale oxygenation of the alkane to the alcohol is often incomplete, resulting in a significant amount of residual alkane. Application of these alcohols often requires a low residual alkane content and a post-production separation process is thus required. Traditional separation methods such as distillation and crystallisation are not technically viable as crossover melting and boiling points prevent the successful implementation of such processes and it is envisaged to use supercritical extraction to separate a mixture of n-alkanes and 1- alcohols. The project scope revolves around a product stream consisting of detergent range alcohols and corresponding n-alkanes that need to be separated. To model such a system, a typical detergent range alkane – alcohol feed with an average of 13 carbon atoms was selected, although a large number of the molecules have between 12 and 14 carbon atoms each. Generally the presence of the hydroxyl group as well as an increase in the number of carbon atoms decreases the solubility in supercritical solvents [17]-[19]. The most difficult separation will therefore be that of the alcohol with the least number of carbon atoms, that is 1-dodecanol (alcohol with 12 carbon atoms, CH3-(CH2)9-CH2-OH ) and the alkane with the most number of carbon atoms, that is n-tetradecane (alkane with 14 carbon atoms, CH3-(CH2)12-CH3 ). To model the system, it is assumed that the hydrocarbon backbone is linear and the alcohol is primary. Therefore 1-dodecanol and n-tetradecane are used. If it is possible to separate 1-dodecanol and ntetradecane with the use of supercritical fluids, it should be possible to separate an industrial mixture. The deliverables of this study are: a comparison of the high pressure solubility of n-tetradecane and 1-dodecanol with a selection of possible solvents; a selection of potential solvents to be tested on a pilot plant to confirm practical separation. From the literature and measured phase equilibria, all three solvents (carbon dioxide, ethane and propane) have the ability to distinguish (based on a difference in the pressure required for solubility) between 1-dodecanol and n-tetradecane. Both carbon dioxide and ethane have favourable temperature considerations. Propane has superior solubility of n-tetradecane and 1- dodecanol. Carbon dioxide demonstrates the highest selectivity. Pilot plant experiments have shown that both carbon dioxide and ethane have the ability to separate a 50-50% (mass percentage) mixture of 1-dodecanol and n-tetradecane. Both solvents perform at their best at low temperatures. Carbon dioxide shows the best results at low temperature and conditions of reflux. The highlight of pilot plant experiments with supercritical carbon dioxide is achieving a selectivity of 16.4 with the mass percentage of n-tetradecane at 5% and 82% for the bottoms and overheads product respectively. Very good separation is achieved using supercritical ethane as solvent even without reflux. Attention is drawn to pilot plant experiments where the selectivity is as high as 82 with the mass percentage of n-tetradecane in the bottoms and overheads product at 1% and 82% respectively. It is recommended to measure ternary phase equilibria for the system n-tetradecane, 1-dodecanol and carbon dioxide/ethane to establish the interaction between n-tetradecane and 1-dodecanol. The measured binary phase equilibrium data need to be expanded to include the vapour mass fraction composition in the isothermal solubility data.
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23

Edmunds, Caitlin A. "Solid-State Nuclear Magnetic Resonance Analysis of Cytosine-Methylated DNA Dodecamer." Scholarship @ Claremont, 2013. http://scholarship.claremont.edu/scripps_theses/147.

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The interaction of deoxyribonucleic acid (DNA) and cellular proteins is absolutely central to any biological understanding of DNA replication, transcription, and even gene regulation. Because an incumbent protein latches not onto the four bases but onto the backbone phosphate groups of the nucleic acid, backbone dynamics directly pertain to an understanding of basic cell processes. Studies have unambiguously proven that DNA exists in a balance of two conformations, BI and BII, defined by the difference in their backbone torsion angles. A given DNA sequence expresses a preference for either BI or BII, though both exist in most samples (and are presented as a ratio). Factors affecting that ratio include flanking sequence and methylation. When a DNA sample is methylated, which occurs at a cytosine, backbone dynamics at that site and perhaps even its neighbors are theoretically quenched due to the steric strain of a large attached group. DNA methylation is implicated in cancer diagnosis by new studies focusing on hypermethylation in CpG islands, This thesis uses solid-state deuterium NMR to study the backbone dynamics of the Dickerson dodecamer, [d(CGCGAATTCGCG)]2, which was the first synthetic BII conformer successfully crystallized (allowing for analysis in the solid state) and which contains the EcoRI binding site, GAATTC. This molecule is a good model system because a massive amount of information has been gathered on it not only using NMR, both high-resolution and solid-state, but also using x-ray diffraction, electron paramagnetic resonance, and all-atom molecular dynamics simulation. This thesis research shows the quenching of backbone dynamics due to C9 methylation.
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24

Espinoza, Filippo Marco. "Fare gli Italiani dell’Egeo: Il Dodecaneso dall’Impero ottomano all’Impero del fascismo." Doctoral thesis, Università degli studi di Trento, 2017. https://hdl.handle.net/11572/368399.

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Scopo della tesi è indagare i modi e le forme attraverso cui la percezione dell'€™opinione popolare egea da parte delle autorità italiane hanno influenzato trasformazioni della vita giuridica, economica e sociale del Dodecaneso nel periodo compreso tra la spartizione dell'€™Impero ottomano e la proclamazione dell'€™Impero fascista. Attraverso questa chiave interpretativa si tenterà  di enucleare alcune peculiarità del Possedimento delle Isole Italiane dell'€™Egeo rispetto al contesto italiano e a quello internazionale. Per ricostruire gli sviluppi e gli esiti di tale rapporto si è proceduto a una disamina analitica, mettendo a fuoco le vicende che videro coinvolti gli attori locali e gli organi di governo metropolitani, le problematiche affrontate e le decisioni prese sulla base di documenti interni (studi, memorie, carteggi) e di fonti ufficiali (pubblicistica italiana e internazionale, atti di convegno, bilanci, discorsi parlamentari, leggi e regolamenti). Si è poi cercato di interpretare i singoli eventi, evidenziando le specificità del contesto egeo rispetto agli altri territori sottoposti alla sovranità italiana, le linee di continuità  o le divergenze tra le pratiche di governo italiane e quelle ottomane, le finalità attribuite alla politica locale, gli effetti della Grande depressione e dello scenario politico successivo alla Crisi di Abissinia sul tessuto sociale e sulle pratiche amministrative. Il lavoro è diviso in quattro capitoli. Il primo è un'€™introduzione storica che descrive l'™organizzazione politica e sociale dell'€™Arcipelago durante gli ultimi decenni della dominazione ottomana, le vicende che spinsero gli Italiani all'€™occupazione del Dodecaneso, gli esiti della Guerra di Libia e delle Guerre balcaniche nell'€™opinione popolare egea e all'€™interno dei centri decisionali metropolitani. Nei due capitoli centrali si è deciso di seguire una struttura argomentativa tripartita. Vengono esposti dapprima gli scenari internazionali, con una particolare attenzione alle trattative diplomatiche che interessano la sorte dell'€™Arcipelago. In secondo luogo, vengono analizzate le politiche amministrative che furono pianificate e portate avanti con il perdurare della presenza italiana, tentando di mettere in luce non solo come le direttive inviate da Roma abbiano condizionato l'€™azione di governo degli amministratori, ma anche e soprattutto i modi e le forme in cui il preesistente quadro politico ed amministrativo ottomano, pur rimanendo formalmente in vigore, sia stato progressivamente modificato, vuoi per rispondere alle esigenze dei nuovi governanti, vuoi sulla base di spinte che provenivano dalla società civile egea. Infine si tenterà di mettere in luce come i mutamenti degli scenari internazionali e i diversi atteggiamenti adottati dall'€™amministrazione italiana abbiano influito sulla società dodecanesina, creando non solo oppressione e resistenza, ma anche nuove opportunità di crescita e di guadagno per le diverse classi e gruppi etnici, che adattarono le proprie condizioni di vita secondo dinamiche specifiche e furono in grado di negoziare la loro integrazione all'€™interno dei nuovi circuiti economici, politici e sociali prodotti dall'™imperialismo italiano. L'€™ultimo capitolo mira invece ad evidenziare gli effetti del clima bellicistico e dell'™atteggiamento più marcatamente espansionista esplicitato dal fascismo dopo la conquista dell'€™Etiopia nel Dodecaneso. Ciò ponendo l'€™accento sia sugli effetti che il nuovo clima politico, e più in particolare la rivalutazione strategica del Possedimento, ebbe sul rapporto tra Governo ed opinione popolare sia sulle valutazioni, di stampo razzista, che portarono Roma a considerare il Dodecaneso una sorta di laboratorio, o prototipo, per la futura espansione nei Balcani.
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25

Freitez, Colmenarez Anier Dioreyla [Verfasser]. "Hydroprocessing von n-Dodecan unter den simulierten Reaktionsbedingungen der Fischer-Tropsch-Synthese / Anier Dioreyla Freitez Colmenarez." München : Verlag Dr. Hut, 2019. http://d-nb.info/1190422069/34.

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26

Meißner, Britta [Verfasser], and Lars-Oliver [Akademischer Betreuer] Essen. "Architektur und Funktion eubakterieller Dodecine - eine neuartige Proteinfamilie Kofaktor-speichernder Proteine / Britta Meißner. Betreuer: Lars-Oliver Essen." Marburg : Philipps-Universität Marburg, 2015. http://d-nb.info/1074639227/34.

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27

Rocha, Etienne Marcos de Almeida. "Cinetica e difusão intraparticular na desidrogenação do N-Dodeccano num catalisador industrial." [s.n.], 1993. http://repositorio.unicamp.br/jspui/handle/REPOSIP/267344.

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Orientador : Mario de Jesus Mendes<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Quimica<br>Made available in DSpace on 2018-07-18T13:20:01Z (GMT). No. of bitstreams: 1 Rocha_EtienneMarcosdeAlmeida_M.pdf: 2562251 bytes, checksum: af087981260c2788f2ae1ed5f8286018 (MD5) Previous issue date: 1993<br>Resumo: Uma forte influência dos efeitos de difusão intraparticular é observada na desidrogenação do n-dodecano num catalisador comercial de Pi-Sn/¿AL IND. 2¿¿O IND. 3¿. Dados experimentais de composição na superfície de partículas inteiras foram obtidos num reator ¿sem gradientes externos¿ do tipo Carberry para uma temperatura de '450 GRAUS¿C, pressão de 2,4 atm e razão molar de alimentação 'H IND. 2¿/¿C IND. 12¿¿H IND.26¿ igual a 5 e 10 e 'H IND. 2¿/¿N IND. 2¿ igual a 3. Problemas de gradiente de temperatura e concentração ao longo do reator com cesta rotatória foram resolvidos com modificações do sistema de aquecimento do reator. Os valores de taxas de reação obtidos foram combinados com as expressões da taxa de reação intrínseca, o que permitiu calcular o fator de efetividade. Valores muito baixos do fator de efetividade foram encontrados para as reações em série dodecano '1 SOBRE 2 BARRAS¿ dodeceno ' SOBRE 2 BARRAS¿ dodecadieno '3 SOBRE SETA¿ aromáticos. A complexidade do sistema com três reações consecutivas e a difusão multicomponente, em partículas porosas e esféricas de catalisador, tornam complexa a modelagem do processo de difusão intraparticular. Equações de difusão do tipo Stefan-Maxwell modificadas foram combinadas com as equações de balanço material para o componente chave de cada reação; não foram incluídos os efeitos de gradiente de pressão e da difusão superficial... Observação: O resumo, na íntegra, poderá ser visualizado no texto completo da tese digital<br>Abstract: Not informed.<br>Mestrado<br>Sistemas de Processos Quimicos e Informatica<br>Mestre em Engenharia Química
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28

Martins, José Eduardo Damas. "Estudo de reatividade e resolução enantiomérica do (+-)-10-exo-hidróxipentaciclo[6.2.1.1 3,6.0 2,7. 0 5.9] dodecan-4-ona." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2001. http://hdl.handle.net/10183/3281.

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Neste trabalho, realizou-se a síntese do ceto-álcool pentaciclíco (±)-5, assim como o estudo de reatividade do grupo carbonila do mesmo frente a reações de oximação e redução. Realizou-se também a resolução enantiomérica do composto (±)-5 através de reação de transesterificação com acetato de vinila catalisada pela lipase da Candida rugosa. Altos excessos enantioméricos foram obtidos (>95%, RMN) tanto para o álcool (+)-5 quanto para o éster formado (-)-8. Sugere-se a existência de uma interconversão enantiomérica no composto (+)-5, devido a observação de mistura racêmica, quando o mesmo foi analisado por cromatografia gasosa em coluna quiral. Um mecanismo para tal interconversão, o qual envolve um rearranjo intramolecular, é proposto.
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29

Liavas, Lambros. "La Lira piriforme en Crète et dans le Dodecanèse : facture, histoire et implications sociales." Paris, EHESS, 1986. http://www.theses.fr/1986EHES0111.

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La lira piriforme est le plus repandu des instruments de la famille des vieles dans la grece moderne. Le passage de l'etat de musicien - amateur ou semi-professionnel villageois a celui de professionnel urbain, induit une serie de modifications dans le technique de jeu et le repertoire de cet instrument, entrainant, par voie de consequence,des transformations dans sa forme et influencant sa technique de fabrication. Cette these examine les implications sociales de la lira dans le cadre plus general de l'aire culturelle, historique et geograp- hique a laquelle elle appartient ainsi que le retentissement de l'evolution de la musique populaire sur la facture instru- mental et vice-versa.
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30

Pellacchia, Debora <1983&gt. "La cristianizzazione del Dodecaneso. Chiesa, società ed evergetismo attraverso la documentazione archeologica ed epigrafica." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amsdottorato.unibo.it/8234/1/Pellacchia_Debora_tesi.pdf.

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In epoca tardoantica le isole dell’Egeo orientale attraversarono una fase di prosperità economica grazie alla propria posizione geografica e al ruolo di primo piano rivestito nell’ambito delle spedizioni annonarie dall’Egitto a Costantinopoli. Due dei fattori che influenzarono in maniera determinante lo sviluppo artistico e monumentale della regione in questo periodo di benessere furono la diffusione capillare del Cristianesimo e l’emergere di una gerarchia ecclesiastica capace di gestire il surplus economico e orientarlo verso opere caritative e la costruzione di numerose basiliche che segnarono marcatamente il territorio insulare. Dal 2007 l’Università di Bologna porta avanti una missione archeologica sull’Isola di Kos volta allo studio degli edifici ecclesiastici protobizantini rinvenuti durante il periodo della dominazione italiana del Dodecaneso, nell’ambito della quale sono emersi nuovi dati sulla vita dei monumenti cristiani. Tali ricerche hanno reso necessaria una riconsiderazione generale del processo di cristianizzazione della regione (IV-VII sec.), attraverso una nuova analisi delle fonti archeologiche e epigrafiche. Con il supporto di un catalogo comprendente la schedatura di circa 217 basiliche di epoca protobizantina, si tenterà pertanto delineare le caratteristiche fondamentali della cristianizzazione del Dodecaneso basandosi sulle evidenze monumentali analizzate, mantenendo uno sguardo di natura comparativa sui contesti mediterranei coevi, allo scopo di ravvisare peculiarità regionali e influenze culturali esterne.<br>In Late Antiquity, the Aegean Islands enjoyed a period of economic prosperity due to their geographical position and their leading role in the long-distance exchange of goods across the Mediterranean sea. In this period, two of the factors that influenced the artistic and monumental development of the region were the spread of Christianity and the creation of an ecclesiastical hierarchy able to handle the economic surplus and to mobilize resources for the construction and the decoration of numerous ecclesiastical buildings that mark the island territory. Since 2007, the University of Bologna has carried out an archaeological mission on the island of Kos in order to study the early christian buildings found during the Italian domination of the Dodecanese. Within this research, a general reconsideration of the Christianization process of the entire region (IV-VII sec.) has become necessary. Through a new analysis of archaeological and epigraphic sources and a catalog of about 217 early Christian basilicas, this project will outline the features of the Christianization of the Dodecanese, based on the monumental evidence analyzed, by maintaining a comparative look on the Mediterranean contexts in order to find regional peculiarities and external cultural influences.
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31

Espinoza, Filippo Marco. "Fare gli Italiani dell'€™Egeo: Il Dodecaneso dall'€™Impero ottomano all'€™Impero del fascismo." Doctoral thesis, University of Trento, 2017. http://eprints-phd.biblio.unitn.it/2548/1/Tesi_di_dottorato_Filippo_Marco_Espinoza.pdf.

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Scopo della tesi è indagare i modi e le forme attraverso cui la percezione dell'€™opinione popolare egea da parte delle autorità italiane hanno influenzato trasformazioni della vita giuridica, economica e sociale del Dodecaneso nel periodo compreso tra la spartizione dell'€™Impero ottomano e la proclamazione dell'€™Impero fascista. Attraverso questa chiave interpretativa si tenterà  di enucleare alcune peculiarità del Possedimento delle Isole Italiane dell'€™Egeo rispetto al contesto italiano e a quello internazionale. Per ricostruire gli sviluppi e gli esiti di tale rapporto si è proceduto a una disamina analitica, mettendo a fuoco le vicende che videro coinvolti gli attori locali e gli organi di governo metropolitani, le problematiche affrontate e le decisioni prese sulla base di documenti interni (studi, memorie, carteggi) e di fonti ufficiali (pubblicistica italiana e internazionale, atti di convegno, bilanci, discorsi parlamentari, leggi e regolamenti). Si è poi cercato di interpretare i singoli eventi, evidenziando le specificità del contesto egeo rispetto agli altri territori sottoposti alla sovranità italiana, le linee di continuità  o le divergenze tra le pratiche di governo italiane e quelle ottomane, le finalità attribuite alla politica locale, gli effetti della Grande depressione e dello scenario politico successivo alla Crisi di Abissinia sul tessuto sociale e sulle pratiche amministrative. Il lavoro è diviso in quattro capitoli. Il primo è un'€™introduzione storica che descrive l'™organizzazione politica e sociale dell'€™Arcipelago durante gli ultimi decenni della dominazione ottomana, le vicende che spinsero gli Italiani all'€™occupazione del Dodecaneso, gli esiti della Guerra di Libia e delle Guerre balcaniche nell'€™opinione popolare egea e all'€™interno dei centri decisionali metropolitani. Nei due capitoli centrali si è deciso di seguire una struttura argomentativa tripartita. Vengono esposti dapprima gli scenari internazionali, con una particolare attenzione alle trattative diplomatiche che interessano la sorte dell'€™Arcipelago. In secondo luogo, vengono analizzate le politiche amministrative che furono pianificate e portate avanti con il perdurare della presenza italiana, tentando di mettere in luce non solo come le direttive inviate da Roma abbiano condizionato l'€™azione di governo degli amministratori, ma anche e soprattutto i modi e le forme in cui il preesistente quadro politico ed amministrativo ottomano, pur rimanendo formalmente in vigore, sia stato progressivamente modificato, vuoi per rispondere alle esigenze dei nuovi governanti, vuoi sulla base di spinte che provenivano dalla società civile egea. Infine si tenterà di mettere in luce come i mutamenti degli scenari internazionali e i diversi atteggiamenti adottati dall'€™amministrazione italiana abbiano influito sulla società dodecanesina, creando non solo oppressione e resistenza, ma anche nuove opportunità di crescita e di guadagno per le diverse classi e gruppi etnici, che adattarono le proprie condizioni di vita secondo dinamiche specifiche e furono in grado di negoziare la loro integrazione all'€™interno dei nuovi circuiti economici, politici e sociali prodotti dall'™imperialismo italiano. L'€™ultimo capitolo mira invece ad evidenziare gli effetti del clima bellicistico e dell'™atteggiamento più marcatamente espansionista esplicitato dal fascismo dopo la conquista dell'€™Etiopia nel Dodecaneso. Ciò ponendo l'€™accento sia sugli effetti che il nuovo clima politico, e più in particolare la rivalutazione strategica del Possedimento, ebbe sul rapporto tra Governo ed opinione popolare sia sulle valutazioni, di stampo razzista, che portarono Roma a considerare il Dodecaneso una sorta di laboratorio, o prototipo, per la futura espansione nei Balcani.
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32

Ioannidis, Eudoxia. "British foreign policy toward southeastern Europe and the restoration of the Dodecanese Islands to Greece." Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=61105.

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The aim of the thesis is to analyze Britain's Mediterranean strategy and his relationship to the acquisition of the Dodecanese islands to Greece. Chapter I of this study includes a historical background of the islands prior to the Second World War. Chapter II examines British policy toward Greece and the Dodecanese between 1923-43. Chapter III provides an analysis of the role of the Dodecanese within British policy and military operations in the eastern Mediterranean. The last section deals with the actual restoration of the Dodecanese islands to Greece.
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33

Köck, Sebastian. "Zum Mechanismus der thermischen Umlagerung von 5,8-Diazadispiro[2.0.4.4]dodeca-9,11-dienen." Diss., Ludwig-Maximilians-Universität München, 2015. http://nbn-resolving.de/urn:nbn:de:bvb:19-181584.

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34

Leung, Hoitung Terry. "Chemistry of deca- and dodeca-closo-borate bearing three exopolyhedral sulfur substituents." Connect to this title online, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1092772114.

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Thesis (Ph. D.)--Ohio State University, 2004.<br>Title from first page of PDF file. Document formatted into pages; contains xvii, 168 p.; also includes graphics (some col.) Includes bibliographical references (p. 164-168). Available online via OhioLINK's ETD Center
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35

Elisandra, Do Nascimento Graziele. "Remoção de ácidos naftênicos em mistura modelo de querosene de aviação (Ácido n-dodecanóico em n-dodecano) por adsorção, utilizando novos materiais." Universidade Federal de Pernambuco, 2011. https://repositorio.ufpe.br/handle/123456789/6173.

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Made available in DSpace on 2014-06-12T18:02:35Z (GMT). No. of bitstreams: 2 arquivo164_1.pdf: 3053526 bytes, checksum: 2e5eafdf454df7889e3e5ba1c87ceb2a (MD5) license.txt: 1748 bytes, checksum: 8a4605be74aa9ea9d79846c1fba20a33 (MD5) Previous issue date: 2011<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>A corrosão por ácidos naftênicos a altas temperaturas nas unidades de refino é um dos maiores problemas nas refinarias de todo o mundo, uma vez que, podem causar envenenamento de catalisadores e paradas operacionais de alto custo. Os ácidos naftênicos correspondem a uma mistura complexa de ácidos carboxílicos presentes no petróleo, responsáveis diretamente pela sua acidez e corrosividade. Tais compostos também estão presentes nas frações destiladas do petróleo, causando diversos problemas na qualidade final do produto. Dentre estas frações do petróleo pode-se destacar o querosene de aviação (QAV) que é produzido através do fracionamento por destilação à pressão atmosférica. Os óleos nacionais estão cada vez mais ácidos, estimulando a busca por novos e eficientes métodos de mitigação. Métodos propostos por estudos científicos e industriais para minimizar a corrosão provocada por ácidos naftênicos vêm apresentando custos elevados e problemas de operação. O processo de adsorção tem a vantagem da possibilidade de recuperação dos ácidos orgânicos, que são precursores de surfactantes e aditivos para lubrificantes, não havendo formação de resíduos poluentes e contribuindo com o meio ambiente. As peneiras moleculares mesoporosas (MCM-41) vêm despertando grande interesse na comunidade científica em função da perspectiva da sua aplicação em processos de adsorção e catálise. A fim de reduzir o alto custo dos processos de separação por adsorção, principalmente devido ao elevado valor de alguns adsorventes, a utilização de resíduos agroindustriais como adsorventes vem se destacando como método alternativo. O objetivo deste trabalho foi a remoção da acidez naftênica de uma mistura modelo de QAV (ácido dodecanóico em ndodecano) com uso do adsorvente Sr-MCM-41 e de adsorvente preparado a partir de resíduo agroindustrial. No presente trabalho foi sintetizada a peneira molecular mesoporosa Sr-MCM- 41, na qual a incorporação do estrôncio resultou no aumento da basicidade do material e consequentemente da sua afinidade pelos ácidos. O adsorvente Sr-MCM-41 foi caracterizado por análise termogravimétrica (TG) e termogravimétrica diferencial (DTG), difração de raios- X (DRX), medida de área superficial por adsorção de N2 (BET), espectrometria de emissão óptica com plasma indutivamente acoplado (ICP-OES) e espectroscopia na região do infravermelho com transformada de Fourier (FT-IR). Os resultados da caracterização deste material indicaram que a incorporação do estrôncio não comprometeu a estrutura mesoporosa e que os materiais sintetizados apresentaram um bom grau de organização. Foi utilizada a técnica de planejamento fatorial para otimização do processo adsortivo visando a determinação das melhores condições de operação. Em seguida foram realizados estudos de cinética e equilíbrio de adsorção com o adsorvente Sr-MCM-41, obtendo-se como capacidade máxima adsortiva 2,0 gácido.g-1 adsorvente, a partir do estudo de equilíbrio de adsorção. Os dados de equilíbrio foram ajustados a isoterma de BET tipo IV. A cinética de adsorção foi modelada considerando-se um modelo de força motriz linear. Também foi preparado o carvão ativado a partir da casca da laranja, o qual foi caracterizado através da medida de área superficial por adsorção de N2 (BET) apresentando isoterma do tipo I, característica de materiais microporosos e foram realizados testes para avaliação de sua capacidade adsortiva que foi em torno de 0,40 gácido.g-1 adsorvente. O estudo de adsorção utilizando a Sr-MCM-41 apresentou significativa eficiência, uma vez que o adsorvente apresentou uma alta capacidade adsortiva. Para o adsorvente carvão ativado preparado a partir da casca da laranja constatou-se a potencialidade de sua aplicação por ser um resíduo agroindustrial, porém, verificou-se a necessidade de um estudo mais detalhado
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36

Leung, Hoitung. "Chemistry of deca- and dodeca-closo-borate bearing three exopolyhedral sulfur substituents." The Ohio State University, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=osu1092772114.

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37

Deligiannakis, Georgios. "The history and archaeology of the Aegean Islands in late antiquity (AD 300-700) : the case of the Dodecanese." Thesis, University of Oxford, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.439726.

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38

Voutsaki, Sofia. "Society and culture in the Mycenaean world : an analysis of mortuary practices in the Argolid, Thessaly and the Dodecanese." Thesis, University of Cambridge, 1992. https://www.repository.cam.ac.uk/handle/1810/272371.

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39

Jokiel, Michael Verfasser], Christof [Gutachter] [Hamel, and Kai [Gutachter] Sundmacher. "Optimale Reaktionsführung durch Reaktor-Tandems am Beispiel der Hydroformylierung von 1-Dodecen / Michael Jokiel ; Gutachter: Christof Hamel, Kai Sundmacher." Magdeburg : Universitätsbibliothek Otto-von-Guericke-Universität, 2020. http://d-nb.info/1225863341/34.

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40

Jokiel, Michael [Verfasser], Christof [Gutachter] Hamel, and Kai [Gutachter] Sundmacher. "Optimale Reaktionsführung durch Reaktor-Tandems am Beispiel der Hydroformylierung von 1-Dodecen / Michael Jokiel ; Gutachter: Christof Hamel, Kai Sundmacher." Magdeburg : Universitätsbibliothek Otto-von-Guericke-Universität, 2020. http://d-nb.info/1225863341/34.

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41

Staudt, Heike [Verfasser], Josef [Akademischer Betreuer] Wachtveitl, and Martin [Akademischer Betreuer] Grininger. "Kurzzeitspektroskopische Untersuchungen an Flavoproteinen: Photoprotektion von Flavinen in Dodecinen und erste Schritte der Peptidfaltung / Heike Staudt. Gutachter: Josef Wachtveitl ; Martin Grininger." Frankfurt am Main : Univ.-Bibliothek Frankfurt am Main, 2012. http://d-nb.info/1044772778/34.

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Köck, Sebastian [Verfasser], and Manfred [Akademischer Betreuer] Heuschmann. "Zum Mechanismus der thermischen Umlagerung von 5,8-Diazadispiro[2.0.4.4]dodeca-9,11-dienen / Sebastian Köck. Betreuer: Manfred Heuschmann." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2015. http://d-nb.info/1070762903/34.

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43

Zhou, Jian Sheng. "Correlation entre tension interfaciale et composition de la couche adsorbee de systemes diphasiques capable de donner des microemulsions : influence de l'alcool comme cotensioactif." Paris 6, 1987. http://www.theses.fr/1987PA066674.

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La composition de la couche adsorbee a l'interface de systemes diphasiques : eau+nacl; dodecane, dodecylsulfate de sodium ou dodecylbenzenesulfonate comme agent de surface et butanol, pentanol ou alcool benzylique comme coagent de surface, est determinee par application de la loi de gibbs
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44

Bourdeaux, Florian Alexander [Verfasser], Martin [Akademischer Betreuer] Grininger, Martin [Gutachter] Grininger, and Stefan [Gutachter] Knapp. "The dodecin of Mycobacterium tuberculosis : biological function and biotechnical applications / Florian Alexander Bourdeaux ; Gutachter: Martin Grininger, Stefan Knapp ; Betreuer: Martin Grininger." Frankfurt am Main : Universitätsbibliothek Johann Christian Senckenberg, 2021. http://d-nb.info/1237884284/34.

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45

Peppuy, Alexis. "Termites du Nord Vietnam : communication chimique et isolement spécifique." Paris 6, 1999. http://www.theses.fr/1999PA066646.

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46

Ludwig, Petra [Verfasser], and R. [Akademischer Betreuer] Fischer. "Untersuchungen zur Funktion von Dodecin und zu Protein-Protein-Interaktionen von Enzymen der Roseoflavinbiosynthese in Streptomyces davawensis JCM4913 / Petra Ludwig ; Betreuer: R. Fischer." Karlsruhe : KIT-Bibliothek, 2016. http://d-nb.info/1119243009/34.

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47

Thomatos, M. "The final revival of the Aegan Bronze Age : a case study of the Argolid, Corinthia, Attica, Euboea, the Cyclades and the Dodecanese during LH IIIC Middle." Thesis, University of Edinburgh, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.662858.

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My thesis examines the post palatial phase of Late Helladic IIIC Middle. The beginning of this period is marked with the collapse of the Mycenaean system dating roughly to 1200 B.C., while after its final phase the Early Iron Age communities of the Aegean begin to emerge. The importance of this period has come to light in the past few decades with discoveries of new cemeteries and settlements as well as continuity of occupation at many Mycenaean sites such as Mycenae and Tiryns. Although current research examines various aspects of LH IIIC, there is a need of a more synthetic study of the whole period. My thesis examines the archaeological material from settlements and burials together with their associated finds of poetry, weapons, jewellery, and terracotta figurines. The areas which will be examined are the Argolid, Corinthia, Attica, Euboea, the Cyclades and the Dodecanese. LH IIIC middle is characterised both as period of continuity and change. In general, pottery production, burial customs and architectural traditions continue from LH IIIB, the Mycenaean palatial period. There are however new features introduced in this periods such as new types of burials rites (introduction of cremation) and new patterns of exchange within and outside the Aegean. The most important phase of this period appears to be the middle phase. The evidence for this phase indicates a plethora of decorative pottery, richness in finds and what appears to be a complex social system. My aim is to demonstrate that LH IIIC was a period of contact and cross-influence, both within and outside the Aegean and marks the transition from the palace administrative system of the Mycenaean era to that of the city-states of the Early Greek period.
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Thurston, Caroline A. "The co-occurrence of terracotta wheelmade figures and handmade figurines in mainland Greece, Euboea, the Dodecanese, the Cyclades and the Northern Aegean islands, 1200-700 BC." Thesis, University of Oxford, 2015. http://ora.ox.ac.uk/objects/uuid:e2b05fce-bd02-4f8b-bcf4-a55f46f0a452.

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This thesis addresses the lacuna in the study of Greek terracotta figures and figurines corresponding to the transitional period between the Late Bronze and Early Iron Ages (1200-700BC). It provides a comprehensive synthesis of all available data, with particular reference to material from recently excavated sites in mainland Greece and its islands (Euboea, the Northern Aegean islands, the Dodecanese and the Cyclades). The study is framed according to the relationship between terracotta <b>figures</b> (those made on the potter's wheel) and <b>figurines</b> (those made by hand). The observation that the technological distinction between these two types is reflected in their different and separate functions has been sustained in scholarship for the past three decades, but only for the Mycenaean period. Handmade figurines and wheelmade figures occurred in different and restricted contexts in the Mycenaean world: the former in settlements, cemeteries and religious locations, and the latter exclusively in religious contexts. It is therefore inferred that they had different socially embedded values or 'meanings'. However, the extent to which such a distinction applies to figures and figurines in the Early Iron Age has hitherto not been explored. Initial evidence indicates that by the 8th century, handmade figurines and wheelmade figures were deposited together at selected sites, suggesting that their inherent socially embedded meanings were the same, and that they represented "different levels of [financial] investment in what is essentially the same category of votive". This thesis therefore determines the levels of co-occurrence of wheelmade figures and figurines, thus identifying how distribution relates to usage. Changes are observed over time and space and between different types of functional contexts, and the meanings of these patterns are investigated. The results of this study provide a chronological and geographical overview of the distribution of figures and figurines, and also indicate that figures and figurines had consistently multivariate relevance in multiple types of contexts. The functional dichotomy of figures and figurines observed for the Mycenaean period cannot be sustained beyond 1200 BC. Moreover, study of the contexts from which the material originates indicates that the significance of secondary deposits of religious nature has been consistently overlooked, and that figures and figurines were used in an active and meaningful sense even during the act of their discard. This type of activity is a distinctive one that can be characterised and defined functionally, geographically, temporally and quantitatively. The socially embedded meaning of figures and figurines was fluid and related to an action being performed; their meaning was not linked exclusively to an aspect of the object itself, and was therefore not static.
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Thomatos, Marina. "The final revival of the Aegean Bronze Age : a case study of the Argolid, Corinthia, Attica, Euboea, the Cyclades and the Dodecanese during LH IIIC Middle /." Oxford : Archaeopress, 2006. http://catalogue.bnf.fr/ark:/12148/cb40172415q.

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Rost, Anke [Verfasser], Reinhard [Akademischer Betreuer] Schomäcker, Arno [Akademischer Betreuer] Behr, and Klitzing Regine [Akademischer Betreuer] von. "Rhodium - katalysierte Hydroformylierung von 1-Dodecen mit zweizähnigen Liganden in Mikroemulsionssystemen / Anke Rost. Gutachter: Arno Behr ; Regine von Klitzing ; Reinhard Schomäcker. Betreuer: Reinhard Schomäcker." Berlin : Technische Universität Berlin, 2013. http://d-nb.info/1067384561/34.

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