Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 18 of 18 for “"Phase state."”.
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The observation of phase state and temperature using noninvasive ultrasonic waves.
… to obtain temperature measurements and observe phase changes, but most rely on physical contact or a line-of-sight path with the material. Many industries ranging from oil and gas to food and beverage could expand their application space in select scenarios if a noninvasive means were available …
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Physics performance studies for the ALICE experiment at the CERN LHC
… Hadron Collider (LHC) will explore a primordial state of matter that existed in the early Universe. Resonance production at the LHC is of great interest in the study of the phase state of hadronic matter known as Quark Gluon Plasma (QGP). Results are presented on the prospects for φ (1020) meson …
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Spatial correlation of lipid phase fluctuations in model membranes studied with two-photon fluorescence microscopy
The temporal dynamics of lipid phase fluctuations and the spatial organization of model lipid membranes was studied using Two-photon excitation fluorescence microscopy. Lipid membranes of different composition were reconstituted in Giant Unilamellar Vesicles (GUVs) and labeled with the environment …
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Surface forces apparatus (SFA) studies on n-octadecyltriethoxysilane self-assembled monolayers on untreated and plasma-treated mica
… dry and humid conditions suggested that the OTE phase state for both the plasma treated and untreated cases is pseudo-crystalline. Further, these studies suggested that the monolayer on both plasma treated and untreated mica does not fully cover the entire surface and likely exists as two very …
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Ultrafast Spin-Charge Conversion Schemes in Magnets: THz Time Domain Spectroscopy Study
… in the antiferromagnet-ferromagnet mixed phase state at low temperatures and propose potential mechanisms responsible for it. Finally, we report the generation of helicity-dependent ultrafast photocurrents in a noncollinear antiferromagnet Mn3Sn. We combine the experimental data with a …
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Adsorption of phloretin to lipid layers
… dependent on the surface pressure and the phase state of the lipid. Calorimetric measurements confirmed the integration of phloretin into membranes because of the strong decrease of the phase transition temperature, but they also showed that the cooperativity of phase transition is hardly …
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Thermal rheological analysis of cure process of epoxy prepreg
… cure processes. To graphically represent the phase changes of the cure process, the isothermal cure diagrams of time-temperature-transformation (TTT) and conversion-temperature-transformation (CTT) are constructed. Each region in TTT and CTT diagrams corresponds with the phase state of the …
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Effects of the agricultural sector on the physico-chemistry and the ecosystem quality of inland waters
… on the one hand the "Driving forces – Pressure - State – Impact - Response" (DPSIR) modeling framework and, on the other, the decision trees data mining technique with the use of an improved version of the C4.5 algorithm called See5. The datamining applications were performed in three consecutive …
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Instrument development for exploring the influence of interfacial chemistry on aerosol growth, aging, and partitioning of gases
… (>10^6 particles/cm3) depends on particle phase state and composition. The coagulation efficiency decreased with increased humidity in the model atmosphere and with increased ion concentrations in the aerosols. The decrease in efficiency is attributed to repulsive forces from like-charges …
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Moment analysis methods of ultrasonic waveforms to characterize the internal temperature and melt transition boundary for materials with irregular porosity.
… industries. Monitoring the internal thermal and phase states of materials is of particular interest to the petro-chemical, food, and polymer processing industries, and ultrasound has found limited investigation within the literature for such applications. In this thesis, ultrasound is shown to be …
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Chemical and Physical Studies of Secondary Organic Aerosol Formed from Beta-pinene Photooxidation
… objective was to identify the gas and particle phase products with an atmospheric pressure chemical ionization mass spectrometer (APCI-MS/MS). A wide variety of products were identified containing various functional groups including alcohol, aldehyde, carboxylic acid, ketone and nitrate. …
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Ab initio thermodynamics of phase-separating and cation-disordered cathodes for Li-ion batteries
… paradox between the high Li diffusivity in phase-separating LiFePO 4 and the persistence of thermodynamically unstable solid-solution states during (dis)charge at low to moderate C-rates. We demonstrate that, even under rate conditions such that relaxation to a two-phase state is kinetically …
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Two phase flow distribution in parallel flow heat exchangers -- experimentally verified model
… modeling and numerical simulation of two phase mass flow distribution in a microchannel evaporator, on the basis of the pseudo 2-D finite volume method. Emphasis is placed on refrigerant-side heat transfer and pressure drop characteristics. The global flow distribution is based on the …
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Transmission Electron Microscopy Study of Domains in Ferroelectrics
… materials for future device applications – mixed-phase BiFeO<sub>3</sub> thin films. The investigations use primarily TEM techniques accompanied by relevant theory and AFM techniques.<br/>The study on polycrystalline BaTiO<sub>3</sub> (FIB lamellae) aims to further understand the link between …
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Analysis of SMAUG1 protein motifs and interacting partners - linking regulation of phase separation to human disease
… organelles (MLOs) via liquid–liquid phase separation (LLPS). Dysregulation of these MLOs or “biomolecular condensates” is increasingly linked to human disease, including cancer and neurological disorders. Human SMAUG1 (SAMD4A) is a conserved translational repressor and …
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Application of through-vial impedance spectroscopy as a novel process analytical technology for freeze drying
… of the temperature of the solution and its phase state, whereas C″Peak is strongly coupled to the amount of ice that remains during the drying process. Both log fpeak and log R have a linear dependence on the temperature of the solution, provided there was no phase change in the solution. …
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Evaluation of Existing Subsurface Cooling Systems Worldwide and Development of Efficient Cooling Methods and Systems Based on Renewable Energy Sources
… are capable of maintaining the liquid phase state far below 0 °C. This dissertation primarily investigates the practical use of low-pressure, chilled propylene glycol, which has a freezing point of -68 °C, in a closed circuit as the source of cooling the intake air for deep and hot …
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Polymerization in emulsion microdroplet reactors
… of the drops. The two immiscible liquid phases required for emulsion polymerization provide unique and complex chemical and physical environments suitable for the engineering of novel materials. The development of novel non-ionic fluorosurfactants allows fluorocarbon oils to be used as …