Contact angle hysteresis is a difference between advancing and receding angles. Contact angle hysteresis arises from the chemical and topographical heterogeneity of the surface, or swelling, rearrangement or alteration of the surface by the solvent. Contact angle hysteresis cannot be measured directly but through the measurement of advancing.
Thirdly this thesis presents the first method for the measurement of in-situ contact angle at realistic conditions by the use of micro-CT, applied to a single carbonate sample at 50oC and 10 MPa. Contact angles ranging from 35o to 55o were observed, indicating that the CO2-brine-carbonate system is weakly water-wet. Finally, we use fast synchrotron-based X-ray micro-CT to examine drainage into.
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Entanglement in higher dimensions is an attractive concept that is a chal- lenge to realise experimentally. To this end, the entanglement of the orbital angular momentum (OAM) of photons holds promise. The OAM state-space is discrete and theoretically unbounded. In the work that follows, we investi- gate various aspects of OAM entanglement. We show how the correlations in OAM and its conjugate.
To this end, the research described in this thesis is twofold: theoretical; in which the wheel - rail contact is modelled in terms of contact and friction, and experimental; in which the friction between wheel and rail is measured to validate the developed model. The contact model between wheel and rail is approximated to be elliptical, which is.
Effect of contact angle and contact angle hysteresis on the stability and detachment of floating particles Dong-xia Feng Bachelor of Engineering A thesis submitted for the degree of Doctor of Philosophy at The University of Queensland in 2016 School of Chemical Engineering. II Abstract Flotation is a significant separation process widely used in many industrial processes. The fundamental.Learn More
A typical PhD, taken over 3-4 years, is structured as follows:. You will be required to submit a report that contains the contents page for your thesis, a statement of expected contributions, achievements to date and a plan for completion of work and thesis. You will be assessed by interview with one or more assessors and your supervisor. Months 24-36. You continue working on your research.Learn More
I would like to thank my PhD thesis adviser Prof. Manoj K Chaudhury for his excellent guidance throughout my graduate study. I thoroughly enjoyed working under his guidance and got introduced to his way of working with very simple systems to extract rich and profound scientific information. I think this would help me a lot in my research career ahead. I would also like to thank my PhD thesis.Learn More
An acceptable PhD thesis must have a thesis. You need to have something to argue for or against, a point to prove or disprove, a question to answer. What goes into this section of the proposal is a statement of your question and the answer you plan to give, even if, for now, it remains a hypothesis. Why this subject is important.Learn More
Prospective doctoral students. The Doctoral School supervises 21 doctoral programs covering together all EPFL fields of research. Each programs is responsible for recruiting docto.Learn More
Contact angle was measured after the core discs were aged in 32 API gravity oil for eight weeks at reservoir temperature. Contact angle measurements on cleaned and unaged core discs from adjacent core plugs were also performed. For the variable salinity water with CO 2 flood and variable salinity water with surfactant and CO2 flood scenarios, the crude-aged core discs were kept for two days at.Learn More
I've never worked on a PhD thesis, or even a Masters degree. I don't know how difficult either are, but I can assume they are extremely difficult, time consuming, and that's why they deserve so much respect. Take a moment to realize that you have already done what most people haven't in getting a Master's degree. Take another moment to understand that you are almost done with something that.Learn More
Ph.D. thesis. Stability is one of the key points for real world application of solar cells and is mainly related to the processes that regulate the energy conversion, both in long-term degradation.Learn More
II Abstract The study of multiphase flow in porous media is highly relevant to many problems of great scientific importance, such as CO 2 storage and enhanced oil recovery. Even t.Learn More
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PhD Thesis Abstract. Copy of thesis is now available on D-Space. Title. Fluid characterisation and drop impact in inkjet printing for organic semiconductor devices. Authors. Hutchings, Ian and Jung, SungJune. Abstract. An inkjet printer can deposit a very small volume of liquid with high positional accuracy, high speed and low cost. As a maskless, non-contact additive patterning method.Learn More
The goal of this thesis was to determine the nature of phosphatidylcholine self assembly within hydrocarbon liquids. This study was enacted in order to investigate the potential use of amphiphiles in compartmentalisation strategies for putative organisms inhabiting the hydrocarbon lakes of Titan (the largest moon of Saturn). The backbone of terrestrial cell membranes are vesicular structures.Learn More