Thèses sur le sujet « Common ion »
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Roy, Mahendra Nath. « Studies on the ion-solvent interactions of some tetraalkylammonium and common ions in non-aqueous and mixed solvents ». Thesis, University of North Bengal, 1993. http://hdl.handle.net/123456789/740.
Texte intégralDey, Rabindra. « Studies on the ion-solvent interactions of tetraalkylammonium and common ions in tetrahydrofuran and its binary mixtures ». Thesis, University of North Bengal, 2005. http://hdl.handle.net/123456789/773.
Texte intégralDavey, Cara-Lee. « Development of an Ion Chromatography Method for the Analysis of Nitric Acid Oxidation Reactions of Common Sugars ». The University of Waikato, 2008. http://hdl.handle.net/10289/2407.
Texte intégralDas, Bijan. « Physico - chemical investigations on the ion-solvent interactions of some Tetraalkylammonium and common ions in non-aqueous and mixed binary aqueous solvent systems ». Thesis, University of North Bengal, 1992. http://hdl.handle.net/123456789/719.
Texte intégralRudolph, Wolfram W., et Gert Irmer. « Hydration and ion pair formation in common aqueous La(III) salt solutions : a Raman scattering and DFT study ». Royal Society of Chemistry, 2015. https://tud.qucosa.de/id/qucosa%3A36118.
Texte intégralKirmess, Kristopher Michael. « Investigation of Primary Ion Formation Mechanisms in UV-MALDI-MS Using Excited State Dynamics of Common MALDI Matrices ». OpenSIUC, 2015. https://opensiuc.lib.siu.edu/dissertations/1110.
Texte intégralAlbury, Cassie Louise. « Using whole exome sequencing and genetic association studies to investigate common and complex migraine ». Thesis, Queensland University of Technology, 2018. https://eprints.qut.edu.au/122954/1/Cassie_Albury_Thesis.pdf.
Texte intégralKaliszczak, Magdalena. « Polarisation chimique de l'interface liquide-liquide vers une cocristallisation contrôlée ». Electronic Thesis or Diss., Université de Lorraine, 2022. http://www.theses.fr/2022LORR0332.
Texte intégralControlled formation of cocrystals is an important objective in drug development. This work used the electrochemistry at interface between two immiscible liquids (ITIES) to control the formation of cocrystals. In the first part, the electrochemical behaviour of caffeine was investigated by the means of cyclic voltammetry (CV) and alternating current voltammetry (ACV). The caffeine is the hydrophilic cation thus, it transferred at highly positive potential. Transfer of caffeine (Caff) was verified at various pH and the pH 2 was chosen to be the most optimal for the cocrystals formation. The control experiment proved that 1-hydroxy-2-naphthoic (1H2N) did not transfer at ITIES. ACV provided the information about the influence of the aqueous and organic phase composition. Values have changed when CaffH+ alone, 1H2N alone and both 1H2N and CaffH+ were present in the aqueous phase. These suggest that these two molecules are interfacially active. In the third part the simultaneous measurement of potential (∆E) and current (I) variations at the ITIES, which were polarised using tetraalkylammonium cations as a common ion was reported. Various concentration ratios of tetramethyl-, tetraethyl-, and tetrapropylammonium were dissolved in both phases. Such biphasic systems were then used to verify that the interfacial potential difference measured fit the theoretical calculations. This experimental set-up was next used to probe the interfacial cocrystallisation process of hydrophilic and cationic CaffH+ with lipophilic 1H2N. The presence of caffeine in the aqueous phase led to higher current values, caused by interfacial charge transfer. Analysis of the electrochemical current noise showed a clear difference between cells in which cocrystals are formed and those in which cocrystallisation is hindered, either by a negative potential or by a change in pH. The EN method is a powerful tool to follow the changes occurring at ITIES in common ion experiments by simultaneous measurement of potential and current. In the last part, cocrystals were formed on the ITIES according to the conditions chosen by the design of experiments (DoE) method. Various factors were tested: electrolytes in the aqueous phase, various solvents and salts applying positive potential. The XRD analysis showed the conditions to obtain almost pure Phase I and almost pure phase II. Study of simultaneous ∆E and I and the interfacial tension proved that the applied potential influences the kinetics of the cocrystallization process. DoE method indicated organic salt as the factor having an active impact on cocrystallization at ITIES
Kormoll, Thomas. « A Compton Camera for In-vivo Dosimetry in Ion-beam Radiotherapy ». Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-107368.
Texte intégralThis work presents the first efforts at the Dresden University of Technology to study the feasibility of Compton imaging as a modality to monitor ion beam radiation therapy. The inherent limitations of the method have been studied by means of calculation and Monte Carlo simulation. As a result, the room-temperature semiconductor cadmium zinc telluride appeared as a promising detector material for a clinical device. For more detailed investigation, a simple Compton camera has been constructed comprising a cadmium zinc telluride detector and a position sensitive scintillation detector. This system has proven that accurate imaging of radioactive point sources in the laboratory is feasible. More practical restrictions of Compton imaging in beam conditions have been derived through experiments at a proton facility. Through the experimental work with the Compton camera developed in this work, valuable information was gathered which allowed to test the image reconstruction and to direct the further research towards a clinical Compton camera system
Cumeras, Olmeda Raquel. « Micro Ion Mobility Spectrometry for Gas-phase Detection ». Doctoral thesis, Universitat Autònoma de Barcelona, 2013. http://hdl.handle.net/10803/131286.
Texte intégralIn an ideal world, we might be able to rapidly detect and classify any type of chemical and biological that is found in low concentrations, using instruments of small size and easy implementation. Is in that scenario where the Ion mobility spectrometry (IMS) appeared. It is a technique of measurement and analysis, where ionized analytes are separated by mobility differences under electric field in a flow of neutral gas or air at ambient pressure and temperature. The advantages of IMS include compactness and portability of instrumentation, short separation time (milliseconds scale), and low detection limits, and allow a wide range of applications. In this sense, an intense research effort has been focused towards miniaturization from the available IMS’s devices to the micro high-Field Asymmetric waveform Ion Mobility Spectrometers (FAIMS). This thesis presents the first developments and technological contributions to the FAIMS at IMB-CNM (CSIC). Particularly, this work is dedicated to the simulation, design, and fabrication of a micro planar FAIMS (p-FAIMS) for security applications. The work is organized in five chapters divided in two sections. The first section consists of three chapters. Chapter one is introductory, and on Chapter two introduces the lector to the actual state-of-the-art of the Ion Mobility Spectrometry in general and in particular for the micro high-Field Asymmetric waveform Ion Mobility Spectrometry. Chapter three described the modeling of a planar type of FAIMS for different electric fields and flow conditions. The second section consists of two chapters. Chapter four provides a summary of the different designs and materials considered for the p-FAIMS implementation: Glass-Si-Glass and PCB-PMMA-PCB structures; the technological tasks done for each one and the solving strategies that have leaded to it. UV photoionization has been the chosen as ionization method for safety reasons in all cases. It also presents the characterization with toluene of the new low-cost p-FAIMS prototype fabricated in the IMB-CNM. Chapter five provides a summary of the feasibility study of an online-monitoring of an analgesic drug (remifentanil) in patients breath under anesthesia. A commercial Ion Mobility Spectrometer is used for this medical application in collaboration with the KIST-Europe and the Chirurgische Universitätsklinik from Homburg (Germany).
Öing, Heinz. « Entwicklung eines neuen dieselmotorischen Injektorkonzeptes für zukünftige Emissionsgrenzwerte ». [S.l. : s.n.], 2000. http://deposit.ddb.de/cgi-bin/dokserv?idn=960295925.
Texte intégralBusch, Roger. « Untersuchung von Kavitationsphänomenen in Dieseleinspritzdüsen ». [S.l. : s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=962066672.
Texte intégralOfner, Bernd. « Dieselmotorische Kraftstoffzerstäubung und Gemischbildung mit Common-Rail-Einspritzsystemen ». [S.l. : s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=963990381.
Texte intégralEisen, Sven-Michael. « Visualisierung der dieselmotorischen Verbrennung in einer schnellen Kompressionsmaschine ». [S.l. : s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=969361564.
Texte intégralHedkvist, Adam, et Henrik Ahrman. « Simulation of helium flow through ion guide with COMSOL multiphysics ». Thesis, Uppsala universitet, Tillämpad kärnfysik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-296242.
Texte intégralFreixas, Jérémy. « Microbatteries 3D zinc-air ou comment repousser les limites des technologies lithium-ion ». Thesis, Nantes, 2018. http://www.theses.fr/2018NANT4014/document.
Texte intégralThe studies presented in the frame of this thesis are focused on zinc-air battery miniaturization, an electrochemical energy storage system that shows a higher volumetric and gravimetric energy density than the lithium-ion technology, mostly investigated in literature. The micromachining of a silicon substrate allows designing a high specific surface scaffold: 3D geometrical gain enhances the properties of charge storage for the electrodes of the microbattery. 3D microstructures exhibiting various geometrical designs have been studied: for instance, silicon micro-tubes (4,2μm outer diameter) 109 μm-depth (60:1 aspect ratio) provide a specific surface to the footprint ratio close to 70. Then, this scaffold is coated by the active materials using conformal depositions methods. This process leads to a 3D zinc metallic anode (300nm-thick) exhibiting a surface capacity of 1mAh.cm-2 in aqueous electrolyte (potassium hydroxide 0,7M). Cell voltage is 1,2V. For the first time in literature, a miniaturized air electrode has been manufactured, based on a porous microchannel network on the front side of silicon substrate, and the etching of a cavity on the back side. Once silicon wafer is micromachined, a platinum conformal thin film provides the conductive properties to the electrode while a manganese dioxide layer enhances the catalytic activity. This original concept of 3D air electrode presents a behavior similarly to a commercial one, but with a significant reduced size
Potgieter, JH, SS Potgieter, CA Strydom et O. Gheevarhese. « The influence of various common ions on the slaking of some South African limes ». Water SA, 2003. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1000887.
Texte intégralNaumann, Tino. « Wissensbasierte Optimierungsstrategien für elektronische Steuergeräte an Common-Rail-Dieselmotoren ». [S.l.] : [s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=965199878.
Texte intégralNothnagel, Michael. « The definition of multilocus haplotype blocks and common diseases ». [S.l.] : [s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=973611448.
Texte intégralKoch, Oliver. « Common genetic variants of the IFN-γ and IFNGR1 regions : disease associations and functional properties ». Thesis, University of Oxford, 2003. http://ora.ox.ac.uk/objects/uuid:30fc15ae-13e5-4150-8093-2582334e75c0.
Texte intégralLindqvist, Daniel. « Simulation of Intermittent Current Interruption measurements on NMC-based lithium-ion batteries ». Thesis, Uppsala universitet, Strukturkemi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-325298.
Texte intégralFalconi, Andrea. « Modélisation électrochimique du comportement d’une cellule Li-ion pour application au véhicule électrique ». Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAI043/document.
Texte intégralThe future development of electric vehicles is mostly dependent of improvements in battery performances. In support of the actual research of new materials having higher performances in terms of energy, power, durability and cost, it is necessary to develop modeling tools. The models are helpful to simulate integration of the battery in the powertrain and crucial for the battery management system, to improve either direct (e.g. preventing overcharges and thermal runaway) and indirect (e.g. state of charge indicators) safety. However, the battery models could be used to understand its physical phenomena and chemical reactions to improve the battery design according with vehicles requirements and reduce the testing phases. One of the most common model describing the porous electrodes of lithium-ion batteries is revisited. Many variants available in the literature are inspired by the works of prof. J Newman and his research group from UC Berkeley. Yet, relatively few works, to the best of our knowledge, analyze in detail its predictive capability. In the present work, to investigate this model, all the physical quantities are set in a dimensionless form, as commonly used in fluid mechanics: the parameters that act in the same or the opposite ways are regrouped and the total number of simulation parameter is greatly reduced. In a second phase, the influence of the parameter is discussed, and interpreted with the support of the limit cases. The analysis of the discharge voltage and concentration gradients is based on galvanostatic and pulse/relaxation current profiles and compared with tested commercial LGC cells. The simulations are performed with the software Comsol® and the post-processing with Matlab®. Moreover, in this research, the parameters from the literatures are discussed to understand how accurate are the techniques used to parametrize and feed the inputs of the model. Then, our work shows that the electrode isotherms shapes have a significant influence on the accuracy of the evaluation of the states of charges in a complete cell. Finally, the protocols to characterizes the performance of commercial cells at different C-rates are improved to guarantee the reproducibility
Richard, Marie-Hélène. « Design study of a Compton camera for prompts-gamma imaging during ion beam therapy ». Phd thesis, Université Claude Bernard - Lyon I, 2012. http://tel.archives-ouvertes.fr/tel-00934715.
Texte intégralEhling-Schulz, Monika. « Physiological and protein-biochemical analysis of UV-A and UV-B tolerance of the terrestrial cyanobacterium Nostoc commune ». [S.l. : s.n.], 2000. http://deposit.ddb.de/cgi-bin/dokserv?idn=960206582.
Texte intégralGellatly, Judith. « Decision-making in stepped care for common mental health problems ». Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/decisionmaking-in-stepped-care-for-common-mental-health-problems(c7f8b1b3-2b2b-430a-a017-e6b9726709b1).html.
Texte intégralWienhues, Anna. « Life in common : distributive ecological justice on a shared earth ». Thesis, University of Manchester, 2018. https://www.research.manchester.ac.uk/portal/en/theses/life-in-common-distributive-ecological-justice-on-a-shared-earth(f61a805d-5971-441c-826a-6be449c7f95d).html.
Texte intégralPope, Matthew. « The titanium(IV) oxide photocatalysed decomposition of some common pollutants in water and the influence of metal ions on the photocatalytic process ». Thesis, University of Reading, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.387774.
Texte intégralIbragimov, Iskander. « Development of a readout electronic for a Si-pixeldetector for application in a Compton camera ». [S.l. : s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=97431563X.
Texte intégralNagel, Daniel Edwin. « 3DShips : rapid 3D icon generation for the Command and Control Workstation of the Future ». Thesis, Monterey, California. Naval Postgraduate School, 1989. http://hdl.handle.net/10945/25645.
Texte intégralMusiat, Peter. « Trait-focused internet-based prevention of common mental disorders in students ». Thesis, King's College London (University of London), 2012. https://kclpure.kcl.ac.uk/portal/en/theses/traitfocused-internetbased-prevention-of-common-mental-disorders-in-students(1ceb4dc0-3ac6-4b32-b235-363c36257e9a).html.
Texte intégralMasroor, Waliullah. « Coping with salinity and temperature changes : a focus on the gill response in European sea bass Dicentrarchus labrax ». Thesis, Montpellier, 2019. http://www.theses.fr/2019MONTG008/document.
Texte intégralThe European sea bass Dicentrarchus labrax undertakes seasonal migrations to estuaries and lagoons that are characterized by fluctuations in environmental conditions. It is unclear to what extent salinity acclimation mechanisms are affected at temperatures higher than in the sea, as usually encountered in transitional waters in spring and summer. In this study, juvenile sea bass were pre-acclimated to seawater (SW) at 18 °C (temperate) or 24 °C (warm) for two weeks and then transferred to either fresh water (FW) or SW at the considered temperatures. We have shown that sea bass are able to efficiently maintain blood osmolality at 24 °C at both salinities. However, temperature increase induced significant changes regarding several physiological traits related to osmoregulation, acid-base regulation, ammonia excretion and mucus production. This study showed that thermal acclimation at 24 °C affects gill morphology through gill remodeling and whole-organism ion balance. Plasma Na+ levels seemed to be particularly affected leading to decreased plasma Na+/Cl- ratio in warm conditions, suggesting a blood acidosis. Following FW transfer, the major effects observed were a lower increase in the density of branchial ionocytes and in Na+/K+-ATPase activity at 24 °C compared to 18 °C. Moreover, several key ion transporters involved in ion uptake were not transcriptionally induced following FW transfer at 24 °C. These data suggest a less effective capacity to switch from hypo-to hyper-osmoregulation after FW transfer when fish are exposed to higher temperature. At the molecular level, the temperature increase affected the expression of several branchial transporters, notably in SW. At 24 °C, higher expression of transporters linked to H+ transport might be linked to an acid-base imbalance. Moreover, the induction of ammonia-transporting channels might also indicate increased need for nitrogen excretion, potentially due to enhanced metabolism in warm conditions. Molecular chaperones HSP90 expression was strongly affected by temperature increase and to a lesser extent by salinity decrease. Finally, gill goblet cells analysis suggested that mucus production is increased in response to thermal stress. This study and additional functional studies investigating different temperature regimes provide insights on the effect of increased temperatures on fish responses and may help to predict how teleost will face the consequences of global change
Dauvergne, Denis. « Processus de capture électronique par des ions lourds très épluchés canalisés dans des cristaux minces à des énergies supérieures à 20 MeV-nucléon ». Lyon 1, 1993. http://www.theses.fr/1993LYO10069.
Texte intégralEl-Sheikh, Amr Abdelhamid Farag. « Decreased IFN-gamma message by pancreatic islet-infiltrating leukocytes is a common feature of different treatments that protect against autoimmune diabetes in the BB rat ». Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0025/NQ34758.pdf.
Texte intégralMedhin, Tesfay Girmay. « Modelling the effect of common mental disorders on child growth in Butajira, Ethiopia ». Thesis, King's College London (University of London), 2012. https://kclpure.kcl.ac.uk/portal/en/theses/modelling-the-effect-of-common-mental-disorders-on-child-growth-in-butajira-ethiopia(400d1ebc-cd49-4b0d-8f84-25127d376d04).html.
Texte intégralQadir, F. « Gender disadvantage as a risk factor for common mental disorder in women residing in Rawalpindi/Islamabad ». Thesis, King's College London (University of London), 2005. https://kclpure.kcl.ac.uk/portal/en/theses/gender-disadvantage-as-a-risk-factor-for-common-mental-disorder-in-women-residing-in-rawalpindiislamabad(3a806ea8-69a6-4461-a595-3ef8198df6a8).html.
Texte intégralFaucher, Karine. « Le système latéral du bar, Dicentrarchus labrax, et les conséquences d'un dysfonctionnement sur son comportement : action potentielle des ions métalliques ». La Rochelle, 2004. http://www.theses.fr/2004LAROS124.
Texte intégralThe lateral system is a sensory organ found in aquatic amphibians and fish. It is used by fish for obstacle identification and localization obstacles, for moving objects (preys, predators) detection, for the detection of vibrations generated by low-frequency sound waves, for intraspecific communication (shoaling and sexual parade) and rheotaxis. The functional and morphologic integrity of this sensory system appears thus as an indispensable element for the presence and the survey of fish in an ecosystem. By its localization at the interface between the animal and the environment, and the fact that it functions via ion flux, this sensory organ, directly and constantly exposed to ambient medium, could then be the target of a natural or anthropic pollution. The aim of this study was to examine the impact of an environmental metallic pollution (and in particular, the cadmium ion) on tissues and function of the sea bass, Dicentrarchus labrax (L. ) lateral system, then to observe behavioral consequences induced on individual groups evolving in laboratory controlled conditions. A preliminary study concerning morphologic characteristics and spatial distribution of both types of neuromasts composing the sea bass lateral system was realized using scanning electron microscopy. As usually observed in teleosts, the sea bass possesses two types of neuromasts (superficial and canal ones) distributed on the head, trunk and tail. The decreasing gradient of sensory capacity, underlined from the rostral to the caudal ends of the sea bass trunk lateral line system, is really original and could be involved in the lateral system function. The major sensitivity axis of both types of neuromasts from the trunk lateral line system was identified along the fish's long axis, which confers itself a greater sensitivity of stimuli applied along its body. To reveal the behavioral consequences related to a sea bass lateral system dysfunction, both types of neuromasts were artificially damaged. For this, a double specific, efficient, reproducible and few invasive technique for fish was developed in order to alter at most this sensory system. This method combined the lateral system nerves section with an antibiotic bath. The results indicate that the fish lateral system inactivation involves a reduction of its habitat vertical exploration behavior. In contrast, the fish lateral system inactivation has no effect on the fish nocturnal demand feeding when stationary preys constitute food. A sensory compensation system leaning on olfactive system sets very quickly. The behavioral consequences of an acute exposition of sea bass to cadmium ions were then investigated. This study has shown that cadmium at high concentration in seawater (5 µg. L-1) has an inhibitory effect on the fish startle response facing a danger. This behavioral effect goes along with the destruction of both types of lateral system neuromasts observed in scanning electron microscopy. After 21 days, we notice tissue neuromast regeneration as well as fish startle response restoration. In contrast, when exposed to cadmium at the concentration of the contaminated natural environment (0,5 µg. L-1), fish startle response was not modified and neuromast tissues remain intact. However, in this study, the stimuli applied to simulate a danger to fish being of relatively high intensity, we can wonder if after an acute exposition to cadmium at 0,5 µg. L-1, the sea bass will be always able to detect the surreptitious movement of an alive moving prey. This work would earn to be pursued by studies aiming at determining the cadmium threshold concentration responsible to neuromast tissue damages and the one causing behavioral disorders. It would be also interesting to examine the synergetic effect of metallic ions present in natural environment (cadmium, cobalt, copper, lead, mercury, nickel, zinc, etc. . . ) on the sea bass lateral system and on this species behavior
Ghio, Daniela. « Illness perceptions in adolescents with juvenile arthritis : applying the common sense self-regulatory model ». Thesis, University of Manchester, 2016. https://www.research.manchester.ac.uk/portal/en/theses/illness-perceptions-in-adolescents-with-juvenile-arthritis-applying-the-common-sense-selfregulatory-model(ec4d78b7-1cdd-463d-9861-1da30d5a72ed).html.
Texte intégralTesrif, Moulay Mustapha. « La šu'ubiyya et la recherche d'un passé mythique commun dans l'adab du IIIe/IXe siècle : exemples d'al-Gahiz et d'Ibn Qutayba ». Thesis, Lyon, 2017. http://www.theses.fr/2017LYSE2138.
Texte intégralBased on concrete examples from anti-Šu‘ūbiyya texts pulled from works of al-Ğāḥiẓ (d. 255/869) and Ibn Qutayba (d. 276/889), this thesis aims to demonstrate the pre eminence of the pre-Islamic period on the adab of the IIIe/IXe century. From a methodology which consists in a critical confrontation between these texts (especially the digitalized version of the texts), our point is to fuel the hypothesis of an adorned representation of pre-Islamic Arabia : This image produced a very important part of identical symbols of the Arab-Muslim culture, based on a mythical past in which all the Muslims without prejudice to their ancestries can find themselves."Myth" meaning the narratives of the origins created to explain data of the reality by registering them in a transcent and supernatural dimension, the symbolism of the adab places the essence of the values it is based on in the inheritance of the former Arabs. Trying to explain the world, the udabā’ made of the ğāhiliyya the source of the virtues and the cradle of the purest Arabic language. They devised new common genealogies to put forward the knowledge of the pre-Islamic Arabic traditions. Our two authors stand out the birth of the Arab-Muslim civilization in timeless narratives and in breach with the present time. Thus the non-Arabic Muslims can not refer anymore to their "historical" past and to take rather roots in a past which supports a common culture registered in a not historical time. Only this kind of blank culture, invented by our two authors, could allow the absolute beginning. Consequently, the markers of the supposed superiority could be shaken by the "anti-Šu‘ūbiyya effect" since the ethnical origin or the historical reality are not the only sense of the existence anymore
Gamelin, Alexis. « Collective effects in a transient microbunching regime and ion cloud mitigation in ThomX ». Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLS276/document.
Texte intégralThe thesis is focused on the study of collective effects in a 50 MeV electron storage ring, ThomX, in the absence of synchrotron radiation damping and of longitudinal matching. This thesis is divided in two distinct parts. The first part corresponds to the design of the impedance model (geometric and resistive wakefields, coherent synchrotron radiation) of the storage ring in order to simulate the beam dynamics. The geometric impedance model of the storage ring was obtained via simulation of the individual elements and was checked using wire measurements on prototypes. The coherent synchrotron radiation was simulated taking into account a rectangular vacuum chamber. Beam dynamics simulations, from the RF gun cathode to the storage ring, including collective effects are presented. The simulations are used to optimise the beam dynamics in the storage ring in the micro-bunching regime. The second part is the study of the ion cloud produced by the ionisation of the residual vacuum molecules and the optimisation of the ion clearing techniques. The longitudinal ion accumulation points and the trapping in magnetic fields are both studied analytically and by using a tracking code developed for this purpose. Clearing electrodes and clearing gaps are simulated and optimised using this code and the strategy chosen for the limitation of ion induced effects is described. Finally, the effect of multi-ionisation and ion dissociation is taken into account and the ion effect on the electron beam is estimated
Charles, Kelvin. « The common in Hardt and Negri : substantiating the concept through its urban, digital and political moments ». Thesis, University of Manchester, 2018. https://www.research.manchester.ac.uk/portal/en/theses/the-common-in-hardt-and-negri-substantiating-the-concept-through-its-urban-digital-and-political-moments(fc091265-6fb3-43cf-99f4-6bc0510a8bdb).html.
Texte intégralFiedler, Sabine. « ELF and the alternatives (Kommentar) : Comments on Ian MacKenzie’s “Topic & ; Comment” in JELF 2014 ; 3(2) : 395–407 ». De Gruyter, 2015. https://ul.qucosa.de/id/qucosa%3A31180.
Texte intégralBraunholtz-Speight, Timothy Herford. « Power and community in Scottish community land initiatives ». Thesis, University of the Highlands and Islands, 2015. https://pure.uhi.ac.uk/portal/en/studentthesis/power-and-community-in-scottish-community-land-initiatives(7670cf12-6c48-41ef-8bdd-a5aac301873b).html.
Texte intégralGueye-Follet, Marie-Laure. « Relations ioniques dans l'activité cambiale et la xylogénèse : approche par microscopie ionique analytique ». Rouen, 1997. http://www.theses.fr/1997ROUES050.
Texte intégralThorneloe, Rachael Jane. « Investigating medication adherence in psoriasis : exploring the role of illness perceptions, medication beliefs, and emotional distress ». Thesis, University of Manchester, 2014. https://www.research.manchester.ac.uk/portal/en/theses/investigating-medication-adherence-in-psoriasis-exploring-the-role-of-illness-perceptions-medication-beliefs-and-emotional-distress(758e5322-438d-4806-bd2c-84e39c6477dd).html.
Texte intégralAseem, Saadia. « Development and evaluation of a psychosocial intervention for common mental disorders for the British South Asians in the UK ». Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/development-and-evaluation-of-a-psychosocial-intervention-for-common-mental-disorders-for-the-british-south-asians-in-the-uk(3ac9b949-8a1e-4453-8928-1b0975add315).html.
Texte intégralJaber, Maysaa Husam. « Sirens in command : the criminal femme fatale in American hardboiled crime fiction ». Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/sirens-in-command-the-criminal-femme-fatale-in-american-hardboiled-crime-fiction(a6a35b81-665e-4f1a-9f3c-a8c286fe3796).html.
Texte intégralBollon, Nicolas. « Étude critique de la notion de patrimoine en droit des régimes matrimoniaux et des successions ». Lyon 3, 2008. https://scd-resnum.univ-lyon3.fr/in/theses/2008_in_bollon_n.pdf.
Texte intégralThe study of the law of the matrimonial systems and the successions questions the rule of the unity of the heritage. The analysis of the substantive law reveals numerous breaches in this rule, breaches which lead all to autonomous patrimonial masses. The questioning of the rule of the unity is not new. The necessary renovation of the theory of the heritage passes by a redefining of the thesis of the "patrimoine d'affectation". It is not a question of rejecting the person outside the field of the patrimonial construction, but of restoring to her a just place and of basing the patrimonial autonomy on the affectation of the possessions. The association of the asset and the liabilities cannot constitute that the consequence of the affectation and not the criterion of the heritage. However, the affectation remains a purely subjective notion which it is necessary to move closer to the right of property. So, all the times as the affectation finds a support in the right objective of property, it is the source of an autonomous patrimonial mass. However this new approach of the theory of the heritage does not agree when we have to deal with a heritage on which several persons can claim to exercise the same privileges; what is the case of the common possessions under the legal system or the undivided possessions of a succession. It is the reason for which this theory of the affectation patrimonies also crosses by a redefining of the notion of collective property which arnounts to a pure competition of identical rights on the same good
Triscott, Nicola. « Art and intervention in the stewardship of the planetary commons : towards a curatorial model of co-inquiry ». Thesis, University of Westminster, 2017. https://westminsterresearch.westminster.ac.uk/item/q3677/art-and-intervention-in-the-stewardship-of-the-planetary-commons-towards-a-curatorial-model-of-co-inquiry.
Texte intégralErfmeier, Alexandra. « Ursachen des Invasionserfolges von Rhododendron ponticum L. auf den Britischen Inseln Einfluss von Habitat und Genotyp / ». Doctoral thesis, [S.l. : s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=975033476.
Texte intégralAchour, Bilel. « Capteurs à ondes acoustiques de surface fonctionnant à 104 et 208 MHz. : modélisation, développement et application à la détection d’ions lourds métalliques ». Thesis, Le Mans, 2020. http://www.theses.fr/2020LEMA1017.
Texte intégralSurface Acoustic Wave (SAW) sensors have many advantages mainly a high sensitivity, which is a key parameter in various applications. Two strategies were explored, in this thesis, to enhance the sensitivity of SAW devices: switching to Love mode, with a waveguide layer in SU-8 epoxy resin, and frequency increase from 104 to 208 MHz. Prior to the realization of such devices in a clean room and their further use as chemical sensors, numerical simulations were done, first with MATLAB software, and then with the finite element method, via COMSOL Multiphysics software. The optimum thickness of the waveguide layer, allowing a significant gain in sensitivity, was estimated. A disagreement between experience and simulation was found highlighting the need to continue optimization steps. A confrontation between calculations / experiments was carried out for the SH-SAW structures. These devices were functionalized with an anthracene derivate for zinc ions detection in aqueous media. Gravimetric results indicate that increasing the operating frequency from 104 MHz to 208 MHz permits a gain in sensitivity by a factor of 2.3