Dissertations / Theses: 'Interface effects'

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Conrad, Brad Richard. "Interface effects on nanoelectronics." College Park, Md.: University of Maryland, 2009. http://hdl.handle.net/1903/9154.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2009.
Thesis research directed by: Dept. of Physics. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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Karademir, Tanay. "Elevated temperature effects on interface shear behavior." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/42764.

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Environmental conditions such as temperature inevitably impact the long term performance, strength and deformation characteristics of most materials in infrastructure applications. The mechanical and durability properties of geosynthetic materials are strongly temperature dependent. The interfaces between geotextiles and geomembranes as well as between granular materials such as sands and geomembranes in landfill applications are subject to temperature changes due to seasonal temperature variations as well as exothermic reactions occurring in the waste body. This can be a critical factor governing the stability of modern waste containment lining systems. Historically, most laboratory geosynthetic interface testing has been performed at room temperature. Information today is emerging that shows how temperatures in the liner systems of landfills can be much higher. An extensive research study was undertaken in an effort to investigate temperature effects on interface shear behavior between (a) NPNW polypropylene geotextiles and both smooth PVC as well as smooth and textured HDPE geomembranes and (b) sands of different angularity and smooth PVC and HDPE geomembranes. A temperature controlled chamber was designed and developed to simulate elevated temperature field conditions and shear displacement-failure mechanisms at these higher temperatures. The physical laboratory testing program consisted of multiple series of interface shear tests between material combinations found in landfill applications under a range of normal stress levels from 10 to 400 kPa and at a range of test temperatures from 20 to 50 °C. Complementary geotextile single filament tensile tests were performed at different temperatures using a dynamic thermo-mechanical analyzer (DMA) to evaluate tensile strength properties of geotextile single filaments at elevated temperatures. The single filament studies are important since the interface strength between geotextiles and geomembranes is controlled by the fabric global matrix properties as well as the micro-scale characteristics of the geotextile and how it interacts with the geomembrane macro-topography. The peak interface strength for sand-geomembrane as well as geotextile-geomembrane interfaces depends on the geomembrane properties such as hardness and micro texture. To this end, the surface hardness of smooth HDPE and PVC geomembrane samples was measured at different temperatures in the temperature controlled chamber to evaluate how temperature changes affect the interface shear behavior and strength of geomembranes in combination with granular materials and/or geotextiles. The focus of this portion of the experimental work was to examine: i) the change in geomembrane hardness with temperature; ii) develop empirical relationships to predict shear strength properties of sand - geomembrane interfaces as a function of temperature; and iii) compare the results of empirically predicted frictional shear strength properties with the results of direct measurements from the interface shear tests performed at different elevated temperatures.

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Fu, Qilin. "Joint Interface Effects on Machining System Vibration." Licentiate thesis, KTH, Maskin- och processteknologi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-122392.

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Vibration problems are still the major constraint in modern machining processes that seek higher material removal rate, shorter process time, longer tool life and better product quality. Depending on the process, the weaker structure element can be the tool/tool holder, workpiece/fixture or both. When the tool/tool holder is the main source of vibration, the stability limit is determined in most cases by the ratio of length-to-diameter. Regenerative chatter is the most significant dynamic phenomenon generated through the interaction between machine tool and machining process. As a rule of thumb, the ratio between the tool’s overhang length and the tool’s diameter shouldn’t exceed 4 to maintain a stable machining process while using a conventional machining tool. While a longer tool overhang is needed for specific machining operations, vibration damping solutions are required to ensure a stable machining process. Vibration damping solutions include both active and passive damping solutions. In the passive damping solutions, damping medium such as viscoelastic material is used to transform the vibration strain energy into heat and thereby reduce vibration amplitude. For a typical cantilever tool, the highest oscillation displacement is near the anti-node regions of a vibration mode and the highest oscillation strain energy is concentrated at the node of a vibration mode. Viscoelastic materials have been successfully applied in these regions to exhibit their damping property. The node region of the 1st bending mode is at the joint interfaces where the cantilever tools are clamped. In this thesis, the general method that can be used to measure and characterize the joint interface stiffness and damping properties is developed and improved, joint interfaces’ importance at optimizing the dynamic stiffness of the joint interface is studied, and a novel advancing material that is designed to possess both high young’s modulus and high damping property is introduced. In the joint interface characterization model, a method that can measure the joint interface’s stiffness and damping over the full frequency range with only the assembled structure is presented. With the influence of a joint interface’s normal pressure on its stiffness and damping, an optimized joint interface normal pressure is selected for delivering a stable machining process against chatter with a boring bar setting at 6.5 times overhang length to diameter ratio in an internal turning process. The novel advancing material utilizes the carbon nano particles mixed in a metal matrix, and it can deliver both high damping property and high elastic stiffness to the mechanical structure.

QC 20130521

PoPJIM, HydroMod, XPRES, NanoComfort

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Jackson, Tyler Andrew. "Gas gun studies of armature-rail interface wear effects." Thesis, Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/37223.

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The objective of this work has been to investigate the applicability of the gas gun to study the armature-rail interface wear characteristics relevant to rail gun operations. The approach involved developing constitutive models for armature materials (aluminum 6061) as well as oxygen-free high-thermal conductivity copper as the rail material. Taylor rod-on-anvil impact experiments were performed to validate the accuracy of constitutive strength models by correlating predictions of dynamic simulations in ANSYS AUTODYN with experimental observations. An optical comparator was used to discretize the cross sectional deformation profile of each rod-shaped sample. Parameters of the Johnson-Cook strength model were adjusted for each material to match deformation profiles obtained from simulations with profiles obtained from impact experiments. The fitted Johnson-Cook model parameters for each material were able to give overall deformed length and diameter values within 2% of the experimentally observed data. Additional simulations were then used with the validated strength model parameters to design the geometry involving cylindrical rods of armature material accelerated through a concentric cylindrical extrusion die made of copper, to emulate the interface wear effects produced in a rail gun operation. Experiments were conducted using this geometry and employing both the 7.62mm and 80mm diameter gas guns. Microstructural analysis was conducted on interfaces of the recovered samples from both designs. Hardness measurements were also performed along the interface layer to evaluate the structure formation due to solid-state wear or melt formation. The stress and strain conditions resulting in the observed microstructural effects were correlated with predictions from numerical simulations performed using the validated material models. The overall results illustrate that the stress-strain conditions produced during acceleration of Al through hollow concentric copper extrusion die, result in interface deformation and wear characteristics that are influenced by velocity. At velocities (less than 800m/s), interface wear leads to formation of layer dominated by solid-state alloying of Cu and Al, while higher velocities produce a melted and re-solidified aluminum layer. Hence, use of different armature (Al-based) and rail (Cu-based) materials can be evaluated with the gas-gun set-up employed in the current work to study the effects of interface wear ranging from formation melt layer to solid-state alloying as a function of material properties and velocity.

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Miller, Sandi G. "Effects of Nanoparticle and Matrix Interface on Nanocomposite Properties." University of Akron / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=akron1216947385.

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Park, Sungkyun. "Interface effects in ultra-thin films: Magnetic and chemical properties." Diss., The University of Arizona, 2001. http://hdl.handle.net/10150/279832.

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When the thickness of a magnetic layer is comparable to (or smaller than) the electron mean free path, the interface between magnetic and non-magnetic layers becomes very important factor to determine magnetic properties of the ultra-thin films. The quality of interface can enhance (or reduce) the desired properties. Several interesting physical phenomena were studied using these interface effects. The magnetic anisotropy of ultra-thin Co films is studied as function of non-magnetic underlayer thickness and non-magnetic overlayer materials using ex situ Brillouin light scattering (BLS). I observed that perpendicular magnetic anisotropy (PMA) increases with underlayer thickness and saturates after 5 ML. This saturation can be understood as a relaxation of the in-plane lattice parameter of Au(111) on top of Cu(111) to its bulk value. For the overlayer study, Cu, Al, and Au are used. An Au overlayer gives the largest PMA due to the largest in-plane lattice mismatch between Co and Au. An unusual effect was found by adding an additional layer on top of the Au overlayer. An additional Al capping layer on top of the Au overlayer reduces the PMA significantly. The possible explanation is that the misfit strain at the interface between the Al and the Au can be propagated through the Au layer to affect the magnetic properties of Co even though the in-plane lattice mismatch is less than 1%. Another interesting problem in interface interdiffusion and thermal stability in magnetic tunnel junction (MTJ) structures is studied using X-ray photoelectron spectroscopy (XPS). Since XPS is a very chemically sensitive technique, it allows us to monitor interface interdiffusion of the MTJ structures as-deposited and during post-deposition processing. For the plasma-oxidized samples, Fe only participates in the oxidation reduction process. In contrast to plasma-oxidized samples, there were no noticeable chemical shifts as-deposited and during post-deposition processing in air-oxidized samples. However, peak intensity variations were observed due to interface interdiffusion.

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Akinlofa, Olurotimi Richard. "An investigation into the cognitive effects of instructional interface visualisations." Thesis, Robert Gordon University, 2013. http://hdl.handle.net/10059/925.

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An investigation is conducted into the cognitive effects of using different computer based instructions media in acquisition of specific novel human skills. With recent rapid advances in computing and multimedia instructional delivery, several contemporary research have focussed on the best practices for training and learning delivered via computer based multimedia simulations. More often than not, the aim has been cost minimisation through an optimisation of the instructional delivery process for efficient knowledge acquisition. The outcome of such research effort in general have been largely divergent and inconclusive. The work reported in this thesis utilises a dual prong methodology to provide a novel perspective on the moderating effects of computer based instructional visualisations with a focus on the interaction of interface dynamism with target knowledge domains and trainee cognitive characteristics. The first part of the methodology involves a series of empirical experiments that incrementally measures/compares the cognitive benefits of different levels of instructional interface dynamism for efficient task representation and post-acquisition skilled performance. The first of these experiments utilised a mechanical disassembly task to investigate novel acquisition of procedural motor skills by comparing task comprehension and performance. The other experiments expanded the initial findings to other knowledge domains as well as controlled for potential confounding variables. The integral outcome of these experiments helped to define a novel framework for describing multimodal perception of different computer based instruction types and its moderating effect on post-learning task performance. A parallel computational cognitive modelling effort provided the complementary methodology to investigate cognitive processing associated with different instructional interfaces at a lower level of detail than possible through empirical observations. Novel circumventions of some existing limitations of the selected ACT-R 6.0 cognitive modelling architecture were proposed to achieve the precision required. The ACT-R modifications afforded the representation of human motor movements at an atomic level of detail and with a constant velocity profile as opposed to what is possible with the default manual module. Additional extensions to ACT-R 6.0 also allowed accurate representation of the noise inherent in the recall of spatial locations from declarative memory. The method used for this representation is potentially extendable for application to 3-D spatial representation in ACT-R. These novel propositions are piloted in a proof-of-concept effort followed by application to a more complete, naturally occurring task sequence. The modelling methodology is validated with established human data of skilled task performances. The combination of empirical observations and detailed cognitive modelling afforded novel insights to the hitherto controversial findings on the cognitive benefits of different multimodal instructional presentations. The outcome has implications for training research and development involving computer based simulations.

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Sprague, Samantha A. "The Effects of Working Memory on Brain-Computer Interface Performance." Digital Commons @ East Tennessee State University, 2014. https://dc.etsu.edu/etd/2400.

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Amyotrophic lateral sclerosis and other neurodegenerative disorders can cause individuals to lose control of their muscles until they are unable to move or communicate. The development of brain-computer interface (BCI) technology has provided these individuals with an alternative method of communication that does not require muscle movement. Recent research has shown the impact psychological factors have on BCI performance and has highlighted the need for further research. Working memory is one psychological factor that could influence BCI performance. The purpose of the present study is to evaluate the relationship between working memory and brain-computer interface performance. The results indicate that both working memory and general intelligence are significant predictors of BCI performance. This suggests that working memory training could be used to improve performance on a BCI task.

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Eggers, Tatiana M. "Surface and Interface Effects of Magnetoimpedance Materials at High Frequency." Scholar Commons, 2018. https://scholarcommons.usf.edu/etd/7282.

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Amorphous and nanocrystalline transition metal magnetic alloys (TMMAs) have been the subjects of fundamental and applied study due to their unique structure. The lack of long-range order in these materials sets the stage for their soft magnetic properties to be tuned for a variety of technological applications, such as sensitive magnetic field sensors, high frequency transformers, and stress sensors. Fundamental investigation of the magnetic and structural properties of these materials is also motivated by their unique amorphous or nanocrystalline-embedded amorphous matrix morphology, which has consequences on both the magnetism seen from both the atomic and macro-scale. The surfaces of these materials become important to their high frequency applications, where the skin depth of the excitation field is distributed near the surface. In conjunction with high frequency magnetoimpedance measurements, surface sensitive probes of magnetism and structure must be employed to provide a complete picture of the relationship between the surface and dynamic magnetism. This dissertation focuses on the surface impact of chemical composition, annealing conditions, and coatings on TMMAs on their magnetoimpedance response through multiple surface sensitive techniques such as atomic/magnetic force microscopy, magneto-optical Kerr effect, and scanning/transmission electron microscopy. These tools provide a view into the relationship between the nanostructure, microstructure and soft magnetic properties that make these materials highly desired for fundamental study and technological application.

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Doyle, Peter John. "Effects of surfactant on properties of triglyceride/water systems." Thesis, Liverpool John Moores University, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.278945.

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Gilardi, Elisa [Verfasser], and Joachim [Akademischer Betreuer] Maier. "Interface effects in Y2Zr2O7 thin films / Elisa Gilardi ; Betreuer: Joachim Maier." Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2016. http://d-nb.info/1118368118/34.

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Wang, Dong. "Fatigue behavior of thin Cu films film thickness and interface effects /." Karlsruhe : Forschungszentrum Karlsruhe, 2007. http://d-nb.info/98578797X/34.

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Isherwood, S. J. "The effects of icon characteristics, experience and workload on interface usability." Thesis, Swansea University, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.637376.

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The first phase of experimentation studied user's perception of icons. When first encountering concrete, or pictorial, icons, users can compare the icon to their knowledge of the real world to deduce its meaning. This is much less likely for abstract icons, which usually consist of shapes, arrows and lines. A close relationship between icon concreteness and icon meaningfulness would therefore be expected. As users gain experience with icons, however, icon meaningfulness would therefore be expected to increase whilst concreteness remained constant. Experimentation found this to be the case. Consequently, although the icon characteristics of concreteness and meaningfulness may initially be closely related, with experience users perceive them as being independent icon characteristics. The second phase of experimentation examined the influence of icon characteristics , user experience, and mental workload on performance. The icon characteristics of concreteness, meaningfulness, familiarity and semantic distance were found to have considerable influence on user performance. Despite the emphasis on concreteness in previous research, semantic distance was most influential in determining novice users' performance. This was possibly because they relied on 'goodness-of-fit' between icons and their functions, rather than simply pictorialness, in order to learn icon-function relationships. Experienced users' response times were largely determined by icon familiarity, which appeared to act as an index of how easily representations could be accessed from long-term memory. Familiarity was also particularly important for high workload conditions. This research shows the importance of cognitive icon characteristics in determining user performance. Finally, the characteristics of primary importance were found to vary in accordance in experience and workload.

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Wang, Chuandao Charlie, and 王传道. "Organic solar cells towards high efficiency: plasmonic effects and interface engineering." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2012. http://hub.hku.hk/bib/B48329654.

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Organic solar cells (OSCs) are promising candidates for solar light harvesting due to their standout advantages both in material properties and manufacturing process. During past decades, remarkable progress has been achieved. Efficiency for single-junction cells over 9% and tandem cells over 10% has been reported. For high performance OSCs towards commercialization, sufficient light absorption and high quality buffer layers are still two challenges, which are addressed in this thesis by investigating the plasmonic effects on OSCs and interface engineering. Here, the mechanisms of plasmonic effects on OSC are explored by incorporating metallic Au nanoparticles (NPs) in individual anode buffer layer and active layer, respectively, and finally in both layers simultaneously. When Au NPs are incorporated into the buffer layer, surface plasmonic resonance (SPR) induced absorption enhancement due to incorporation of Au NPs is evidenced theoretically and experimentally to be only minor contributor to the performance improvement. The increased interfacial contact area between the buffer layer and active layer, together with the reduced resistance of the buffer layer due to the embedded Au NPs, are revealed to benefit hole collection and thus are main contributors to the performance improvement. When Au NPs are embedded in the active layer, Au NPs induced SPR indeed contributes to enhanced light absorption. However, when large amount of Au NPs are incorporated, the negative effects of NPs on the electrical properties of OSCs can counter-diminish the optical enhancement from SPR, which limits the overall performance improvement. When Au NPs are embedded into both layers, both advantages of incorporating NPs in individual layers can be utilized together to achieve more pronounced improvement in photovoltaic performance; as a result, accumulated enhancements in device performance can be achieved. The results herein are applicable to other metallic NPs such as Ag NPs, Pt NPs, etc. The study herein has clarified the degree of contribution of SPR effects on OSCs and revealed the mechanisms behind. It has also highlighted the importance of considering both optical and electrical effects when employing metallic NPs as strategies to enhance the photovoltaic performance of OSCs. Consequently, the study contributes both physical understanding and technological development of applying metallic NPs on OSCs. Regarding interface engineering, we first propose a simple method to modify the substrate work function for efficient hole collection by using an ultra-thin ultraviolet-ozone treated Au. The method can be used in other situations such as modifying the work function of multilayer graphene as transparent electrode. Then we propose a general method to synthesize solution-processed transition metal oxides (TMOs). Besides high material quality, desirable electrical properties, and good stability, our method stands out particular in that the synthesized TMOs can be dispersed in water-free solvents and the TMO films require only low temperature treatment, which is very compatible with the organic electronics. Our method can also be used to synthesize other TMOs other than the demonstrated molybdenum oxide and vanadium oxide. The proposed method herein is applicable in semiconductor industry.
published_or_final_version
Electrical and Electronic Engineering
Doctoral
Doctor of Philosophy

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Teh, Chong-Ann. "Initial studies of structure coupling effects for a trolley/RRDF interface." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2003. http://library.nps.navy.mil/uhtbin/hyperion-image/03Mar%5FTeh.pdf.

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Hardwick, Christopher. "The effects of third-body materials in the wheel-rail interface." Thesis, University of Sheffield, 2013. http://etheses.whiterose.ac.uk/4751/.

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Smith, Katharine Emma. "Catalytic and interface effects in dispersed and model gold/titania systems." Thesis, University of Cambridge, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.621920.

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Ramsey, Theresa D. "The Effects of Multimedia Interface Design on Original Learning and Retention." Thesis, Virginia Tech, 1996. http://hdl.handle.net/10919/36639.

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The goal of this research was to compare the learning outcomes of three methods of instruction: a text-based instructional system and two multimedia systems. The two multimedia systems used different interface designs. The first multimedia system used a topic-oriented interface which is somewhat standard in multimedia design. The second multimedia system presented a problem solving context and simulated an industrial setting where the user played the role of an industrial engineer. All three methods presented analogous information about Time Study Analysis, a work measurement technique used by industrial engineers. A between subjects experimental design with two independent measures examined two domains of learning: verbal information and intellectual skills. This design was used for two sessions to examine original learning and retention components of learning. Original learning was measured immediately following the instructional treatment. Retention was measured two weeks after treatment. Thirty subjects of similar backgrounds (undergraduates in Industrial and Systems Engineering) participated in the experiment’s two sessions. Post-tests were used to measure verbal information and intellectual skills domains of learning during each session. A combined score for both domains was calculated. The scores were analyzed using ANOVA (analysis of variance). No significant differences were found between the three instructional methods for the two domains or the combined score during either the original learning session or the retention session of the experiment.
Master of Science

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Punnamaraju, Srikoundinya. "Voltage and Photo Induced Effects in Droplet-Interface-Bilayer Lipid Membranes." University of Cincinnati / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1321648604.

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Tomobe, Haruka. "Constitutive Models for Root-Soil Contact Interface Considering Hydro-Mechanical Effects." Kyoto University, 2020. http://hdl.handle.net/2433/253327.

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Kyoto University (京都大学)
0048
新制・課程博士
博士(農学)
甲第22491号
農博第2395号
新制||農||1076(附属図書館)
学位論文||R2||N5271(農学部図書室)
京都大学大学院農学研究科地域環境科学専攻
(主査)教授村上章, 教授藤原正幸, 教授白岩立彦
学位規則第4条第1項該当

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Kennewell, Kimberly. "Surface and interface anisotropies measured using inductive magnetometry." University of Western Australia. School of Physics, 2008. http://theses.library.uwa.edu.au/adt-WU2008.0243.

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In this thesis, an inductive ferromagnetic resonance (FMR) technique is developed to measure the magnetisation dynamics in thin films across a wide range of frequencies and fields. In particular, this project concentrates on measuring higher order exchange dominated modes to observe surface and interface effects in bilayer films. The experimental technique was first developed as a time domain technique, utilising a fast rise time (~50 ps) step pulse to disturb the equilibrium position of the magnetisation. The subsequent precessional damped decay was measured at different applied fields to observe the resonant modes. The data is Fourier transformed to extract a frequency dependent susceptiblity, and results are presented for the frequency and linewidth dependence of excitations of a permalloy film as a function of applied field. This technique is limited to a frequency range dictated by the rise time of the pulse. The technique was then extended so as to use a continuous wave perturbation, utilising a network analyser as both the excitation source and the measurement device. The scattered wave parameters of both the transmission and reflection from the sample were measured, and a magnetic susceptibility is extracted. This method has a frequency range which is dictated by the bandwidth of the network analyser and the microwave circuit. In this project, results are presented for frequencies up to 15 GHz. The signal to noise ratio was also found to be lower than the pulsed technique. Fundamental resonant mode studies are presented for a Fe/MnPd exchange bias bilayer film. Crystalline and exchange anisotropies are extracted from angular measurements, and the behaviour of the magnetisation is investigated during its reorientation to a hard axis direction. Information about the distribution of the local exchange field strength and direction is predicted. Fundamental mode studies are also presented for a Py/Co exchange spring bilayer film. Two modes are observed, approximating an optical and acoustical excitation. Film systems were also designed with suitable thicknesses to observe in the experimentally available frequency range non-uniform exchange dominated excitations through the thickness of the film. The broadband nature of the experiment allowed the frequency of the modes to be measured as a function of field. Results from a single permalloy layer showed two observable modes, the fundamental and the first exchange mode. Measurements were also taken of bilayer films where permalloy is coupled to cobalt. In this system the effect of the cobalt is seen to shift the single layer Py mode frequencies, as well as introduce new modes. The relative intensities of the modes also change with the addition of cobalt. Results are shown for a Pt/Co multilayer coupled to a permalloy layer through a Cu spacer of varying thickness. The observation of excitations through the thickness of the film motivated the development of a suitable theory. A system of integro-differential equations were derived which account for dipole and exchange coupling in the film as well as the field screening by the metal of the coplanar line. The conductivity of the sample and the finite wavevector excitation of the stripline are also included. Numerical solution of the equations results in a spectrum of acoustical, optical and higher-order modes. Fitting of the model to the experimental results allowed extraction of the film parameters including; the exchange constants in the film; the surface pinning from any surface layer anisotropy; as well as the interlayer exchange coupling across the interface.

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Bégon-Lours, Laura. "Ferroelectric field-effects in high-tc superconducting devices." Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066007/document.

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Les supraconducteurs à haute température critique (HTS) sont des systèmes fortement corrélés. Dans ces matériaux, une petite modification du nombre de porteurs peut avoir de grandes conséquences sur leurs propriétés physiques. C'est le cas lorsqu'un matériau ferroélectrique est à proximité immédiate d'un HTS : de manière locale et rémanente, la polarisation ferroélectrique modifie par effet de champ électrostatique le nombre d'électrons dans le HTS, au voisinage de l'interface avec le ferroélectrique. Cet effet peut être exploité dans le but de définir des structures à géométrie variable : dans un premier cas, des jonctions qui consistent en deux électrodes supraconductrices, séparées par une zone où la supraconductivité a été affaiblie par effet de champ. Dans un second cas, des jonctions tunnel ferroélectriques - à nouveau avec des électrodes supraconductrices - où l'épaisseur de la barrière est modulable par effet de champ ferroélectrique. Les travaux menés au cours de cette thèse visent à développer les matériaux et les technologies de lithographie pour fabriquer de telles structures, et à caractériser les propriétés de transport de ces dernières
In this experimental thesis, we fabricated ferroelectric field-effect devices based on high-Tc superconductors. We grew high-quality epitaxial heterostructures consisting of an ultra-thin (2 to 6 unit cells) film of YBCO and a thin ferroelectric film (BFO-Mn). We fabricated transport measurement microbridges and used a CT-AFM tip to polarise the BFO-Mn outwards or towards the BFO-Mn/YBCO interface. Due to the ferroelectric field-effect, the superconducting properties of the underlying YBCO film were consequently modified. We then used this effect locally in order to design weak links within the microbridges: two regions where the superconducting properties are enhanced are separated by a narrow region where they are depressed. We explored the conditions of existence of a Josephson coupling across this weak link. In parallel, we fabricated ferroelectric junctions. The barrier is an ultra-thin BFO-Mn film sandwiched between a high-Tc superconducting YBCO bottom electrode and a low-Tc superconducting top electrode. Both at room temperature and at low temperature, we characterised the transport properties across the barrier and the resistive switching resulting from the polarisation of the ferroelectric barrier

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Ferreira, Raquel. "Culture and E-Commerce: Culture Based Preferences for Interface Information Design." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/34417.

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Global companies face the challenge of offering their products or services to a wider audience. While the Internet has made it easier to distribute information globally, information design for different cultures is still very difficult. Cultural models can be used to identify differences between cultures that may have an effect on how people make decisions. Geert Hofstede (1980, 1997) has defined a cultural model with five dimensions. One of these dimensions, individualism vs. collectivism has been shown to affect the type of information people prefer when viewing printed advertisements. A study was conducted to determine if the individualism vs. collectivism dimension affects the type of information Anglo-American and Hispanic-American people prefer for purchasing tasks in a computer-based environment. The findings of this study suggest that there is no difference between the cultures on preference for information. Nonetheless, there are cultural aspects that have to be considered when designing interfaces for a Hispanic audience as opposed to an Anglo-American audience. Based in these cultural aspects, design guidelines were developed. These aspects are the basis of the design guidelines provided in this paper.
Master of Science

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Bhattacharya, Paromita. "A Case Study of the Effects of a Web Interface Redesign Based on Usability Guidelines." Digital Commons @ East Tennessee State University, 2011. https://dc.etsu.edu/etd/1320.

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Usability guidelines for user interface (UI) design formulated by Nielsen and other authorities were used to redesign the web interface for a web based distance education course. The website's original UI, as judged by a group of web design professionals, violated standard guidelines for usability, readability, learnability, consistency, efficiency of use and flexibility. The original and redesigned UIs were tested using thinking aloud testing, a user satisfaction survey, and usability inspection. The results of user testing and heuristic evaluation suggest that the use of these guidelines in website redesign had a positive impact on user performance. A more conclusive result would have required a larger sample size and a redesigned testing protocol that varied the order in which participants worked with the old and redesigned interfaces.

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Johnson, Janice K. "Adhesive and viscous effects of several lubricants at the slider/disk interface." Thesis, Georgia Institute of Technology, 1992. http://hdl.handle.net/1853/16843.

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Górka, Bartosz. "Development of tissue-equivalent CVD-diamond radiation detectors with small interface effects." Doctoral thesis, Stockholm University, Medical Radiation Physics (together with KI), 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-8131.

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Due to its close tissue-equivalence, high radiation sensitivity, dose and dose-rate linearity, diamond is a very promising detector for radiation therapy applications. The present thesis focuses on the development of a chemical vapour deposited (CVD) diamond detector with special attention on the arrangement of the electrodes and encapsulation having minimal influence on the measured signal. Several prototype detectors were designed by using CVD-diamond substrates with attached silver electrodes.

Interface effects in the electrode-diamond-electrode structure are investigated using the Monte Carlo (MC) code PENELOPE. The studies cover a wide range of electrode and diamond thicknesses, electrode materials and photon beam energies. An appreciable enhancement of the absorbed dose to diamond was found for high-Z electrodes. The influence of the electrodes diminishes with decreasing atomic number difference and layer thickness, so that from this point of view thin graphite electrodes would be ideal. The effect of encapsulation, cable and electrical connections on the detector response is also addressed employing MC techniques. For Co-60, 6 and 18 MV photon beam qualities it is shown that the prototypes exhibit energy and directional dependence of about 3% and 2%, respectively. By modifying the geometry and using graphite electrodes the dependencies are reduced to 1%.

Although experimental studies disclose some limitations of the prototypes (high leakage current, priming effect and slow signal stabilisation), diamonds of higher quality, suitable for dosimetry, can be produced with better-controlled CVD process. With good crystals and a well-designed encapsulation, the CVD-diamond detector could become competitive for routine dosimetry. It is then important for correct dose determination to use a collision stopping power for diamond incorporating proper mean excitation energy and density-effect corrections. A new mean excitation energy of 88 eV has been calculated.

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Alimuddin, Muhammad Asif. "Peel test for the evaluation of environmental effects on fiber-polymer interface." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0006/MQ45577.pdf.

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Saqer, Haneen Rezik. "Mitigating effects of working memory constraints on automation use through interface redesign." Thesis, George Mason University, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=3720807.

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This dissertation investigated the role of individual differences in human use of automation in a simulated command and control task. Using this knowledge we then sought to redesign the simulation interface to improve human-automation interaction. In the first study, participants completed a battery of cognitive tasks to measure working memory capacity, simple memory span, and controlled attention ability. They then performed a simulated air defense task under varying levels of workload and automation assistance. Eye tracking data recorded fixations to capture eye movements during completion of each scenario. Although individual difference measures correlated with primary task performance, they did not predict use of automation. Only average percent of fixations on the automation messaging interface correlated with automation use. Therefore, the second study introduced a redesigned automation interface with the integration of an auditory chime and a visual flicker to promote additional fixations to the message interface and encourage increased automation use. However, this redesign did not increase average fixation percentage and surprisingly resulted in lower use of automation. This finding emphasized Parasuraman and Riley’s (1997) warning that automation can change user behavior in unintended ways. Another notable finding from the study is the unexpected result that short term memory predicted primary task performance. Further, this study provides evidence to support the use of eye tracking measures as a continuous unobtrusive measure of automation use in complex systems. Limitations and future research are also discussed.

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Caglarca, Sercan. "Investigating the Effects of Trends in an Interface to a Dynamic System." Thesis, Uppsala universitet, Institutionen för informationsteknologi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-260463.

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Uppsala University and Trafikverket (The Swedish Transport Administration) have been in collaboration in order to improve the train traffic control systems in Sweden for many years. As a result, a train traffic control system STEG (Swedish for 'Control via an Electronic Graph') was built, and evaluated. Based on the evaluation results, need for more constrained experiments have been revealed. The use of microworlds in such dynamic decision making research is a common approach. For that reason, a microworld (train traffic simulator) was built in Uppsala University. The purpose of the designed experiment was to explore the effects of absence or presence of trend lines on performance and perceived difficulty in an interface of a dynamic system for novice users. The study also answered whether instead of a generic goal, introduction of a target to the users affected their behavior. In the experiment, 32 participants, interacting with the microworld, tried to solve a logical problem and were given 40 trials to improve their performances. In order to test main and interaction effects between the proposed variables (performance, perceived difficulty), the experiment was based on a 2 x 2 factorial design (trend lines: present/absent, target: present/absent). The results were analyzed by means of a mixed design ANOVA for repeated measures. In addition, Scheffé post-hoc analysis and regression analysis were conducted. The analysis results have shown that the trend lines did not improve performance and slowed down learning. The users who were subjected to trend lines and were introduced to a target perceived the task significantly harder.

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Górka, Bartosz. "Development of tissue-equivalent CVD-diamond radiation detectors with small interface effects /." Stockholm : Solna : Medical Radiation Physics, Stockholm university ; Karolinska institutet, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-8131.

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Guymon, Clint. "MPSA effects on copper electrodeposition : understanding molecular behavior at the electrochemical interface /." Diss., CLICK HERE for online access, 2006. http://contentdm.lib.byu.edu/ETD/image/etd1112.pdf.

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Guymon, Clint Gordon. "MPSA Effects on Copper Electrodeposition: Understanding Molecular Behavior at the Electrochemical Interface." BYU ScholarsArchive, 2005. https://scholarsarchive.byu.edu/etd/333.

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In this work the structure of the electrochemical metal-liquid interface is determined through use of quantum mechanics, molecular simulation, and experiment. Herein are profiled the molecular dynamics details and results of solid-liquid interfaces at flat non-specific solid surfaces and copper metal electrodes. Ab initio quantum-mechanical calculations are reported and define the interatomic potentials in the simulations. Some of the quantum-mechanical calculations involve small copper clusters interacting with 3-mercaptopropanesulfonic acid (MPSA), sodium, chloride, bisulfate and cuprous ions. In connection with these I develop the electrode charge dynamics (ECD) routine to treat the charge mobility in a metal. ECD bridges the gap between small-scale metal-cluster ab initio calculations and large-scale simulations of metal surfaces of arbitrary geometry. As water is the most abundant surface species in aqueous systems, water determines much of the interfacial dynamics. In contrast to prior simulation work, simulations in this work show the presence of a dense 2D ice-like rhombus structure of water on the surface that is relatively impervious to perturbation by typical electrode charges. I also find that chloride ions are adsorbed at both positive and negative electrode potentials, in agreement with experimental findings. Including internal modes of vibration in the water model enhances the ion contact adsorption at the solid surface. In superconformal filling of copper chip interconnects, organic additives are used to bottom-up fill high-aspect ratio trenches or vias. I use molecular dynamics and rotating-disk-electrode experiments to provide insight into the function of MPSA, one such additive. It is concluded that the thiol head group of MPSA inhibits copper deposition by preferentially occupying the active surface sites. The sulfonate head group participates in binding the copper ions and facilitating their transfer to the surface. Chloride ions reduce the work function of the copper electrode, reduce the binding energy of MPSA to the copper surface, and attenuate the binding of copper ions to the sulfonate head group of MPSA.

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Zylstra, Andrew. "Transposing the 'real effects of financial markets' perspective onto the marketingfinance interface." Thesis, Paris 1, 2019. https://ecm.univ-paris1.fr/nuxeo/site/esupversions/cc1fc8b2-1794-477f-baba-9be8bf7d855a.

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Afin d’approfondir les connaissances sur la relation entre le marketing et le marché des actions, cette thèse questionne l’éventualité selon laquelle la perspective des « effets réels des marchés financiers » (P. Bond et al., 2012) est adaptée à la fusion des deux courants de l’interface marketing-finance. Les quatre études de cette thèse font la démonstration suivante : les flux d’informations transmis par les cours des actions sont bidirectionnels entre les investissements marketing et les marchés secondaires. Les deux premières études (chapitres 3 et 4) montrent de façon empirique l’impact des flux d’informations provenant des investissements marketing sur les marchés secondaires, tandis que les troisième et quatrième études (chapitre 5 et 6) montrent de la même manière l’impact des flux d’informations provenant du marché des actions sur les investissements marketing. Réunies, ces quatre études attestent que l’information circule de façon bidirectionnelle entre les investissements marketing et les marchés secondaires, ce qui met en relief les débats autour de la perspective « des effets réels des marchés financiers ». Nous présentons deux conclusions relatives à ce résultat. Dans un premier temps, nous soutenons l’idée selon laquelle la perspective des « effets réels des marchés financiers » devrait être superposée à l’interface marketing-finance car elle améliore notre compréhension de ces deux axes. Elle nous apporte également un cadre théorique adéquat pour examiner la manière par laquelle les investissements marketing reflètent et impactent les informations du marché des actions. Dans un second temps, la superposition de la perspective des « effets réels des marchés financiers » à l’interface marketing-finance ouvre la voie à de nombreuses possibilités de recherche permettant d’en savoir plus sur les interactions bidirectionnelles entre les investissements marketing et le marché des actions
To obtain deeper insights into the relationship between marketing and equity markets, this thesis investigates whether the ‘real effects of financial markets’ perspective (P. Bond et al., 2012) is suitable for integrating the two streams of the marketing-finance-accounting interface research area. The four studies in this thesis highlight the bidirectional flows of information in stock prices between marketing investments and equity markets. The first two studies (Chapters 3 and 4) show empirically the impact of information flows from marketing investments to equity markets while the third and fourth studies (Chapters 5 and 6) show empirically the inverse flow of information from equity markets to marketing. Together, the four studies suggest that information flows bidirectionally between marketing investments and equity markets, reflecting the contentions of the ‘real effects of financial markets’ perspective. We make two arguments based on this finding. First, we contend that the ‘real effects of financial markets’ perspective should be transposed onto the marketing-finance interface because it enhances our understanding of the two research streams of the marketing-finance interface and provides a suitable theoretical framework to account for how marketing investments both affect and reflect information in equity markets. Second, transposing the 'real effects of financial markets' perspective onto the marketing- finance interface opens up many research possibilities to generate new insights into the two-way interactions between marketing investments and equity markets

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Paruchuri, Bhavya. "Effects of Freezing Temperature on Interface Shear Strength of Landfill Geosynthetic Liner." University of Toledo / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1321651367.

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Venero, Peter. "AN ECOLOGICAL INVESTIGATION INTO THE EFFECTS OF INTERFACE ON ASYNCHRONOUS GROUP CONVERSATIONS." Wright State University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=wright1334864194.

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36

Miller, Richard H. "Effects of graphical user interface inconsistencies on subjective and objective measures of usability." Thesis, This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-10222009-125001/.

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37

Li, Renfu. "A Study of Interface Crack Branching in Dissimilar Anisotropic Bimaterial Composites Including Thermal." Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/4893.

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The interface crack branching phenomena, including thermal effects, has been investigated by using complex variable method and Stroh's dislocation theory, extended to thermo-elasticity in matrix notation. As one of the most catastrophic failure modes in structures like laminated and sandwich composites in aerospace and marine construction, thin film in electronic packaging, rotators in high speed engine of aircraft and reactor in nuclear power station, the study of interface crack branching has become a topic not only having theoretical importance, but also having practical significance. A unified approach is presented to address the thermoelastic interface crack problems in dissimilar anisotropic bimaterial composites, and a compact closed form solution is formulated by analytical continuation principle of complex analysis. Employing the contour integral method, an explicit solution to the interaction between the dislocations and the interface crack is obtained. By modeling the branched portion as a continuous distribution of the dislocations, the thermoelastic interface crack branching problem is then converted to a set of semi-coupled singular integral equations and solved by Gauss-Jacobi integration schemes. The influence of material property mismatches between the two constituents and the thermal loading effects on the interface crack branching are demonstrated by extensive numerical simulation. Some useful criteria for predicting the interface crack branching growth and guidance for optimal composites design are suggested. Further, a contact model to eliminate the overlapping between the two surfaces of an interface crack is also proposed and some new parameters which could influence the interpenetrating phenomena are also discovered. The technique to extend the current method to three dimensional problems is also outlined. Furthermore, the C++ source code has been implemented to manipulate the complicated complex operations for numerically solving the singular integral equations in complex matrix form.

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38

Zhao, Meng. "Understanding Electrochemical Interface Properties by Comprehensive Self-Consistent Density Functional Theory." Case Western Reserve University School of Graduate Studies / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=case1491315734773944.

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Wang, Dong [Verfasser]. "Fatigue behavior of thin Cu films : film thickness and interface effects / Dong Wang." Karlsruhe : Forschungszentrum Karlsruhe, 2007. http://d-nb.info/98578797X/34.

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40

Chen, Peter. "Numerical analysis of the fully-flooded magnetic head-disk interface including rheological effects." Thesis, Georgia Institute of Technology, 1995. http://hdl.handle.net/1853/17798.

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41

Raymand, David. "Surface and Interface Studies of ZnO using Reactive Dynamics Simulation." Doctoral thesis, Uppsala universitet, Strukturkemi, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-129304.

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About 90% of all chemicals are produced with the help of catalysts, substances with the ability to accelerate reactions without being consumed. Metal oxides play a prominent role in catalysis, since they are able to act reversibly in many chemical processes. Zink oxide (ZnO) is used to catalyse a number of industrially important reactions. For many of these reactions water is present as a reactant, product, or byproduct. The surface structure has a significant impact on the catalytic activity. However, currently, no experimental method simultaneously offers the spatial and temporal resolution to directly follow a catalytic process. This thesis explores surface structure dependent dynamical behavior for ZnO surfaces, nanoparticles, and water interfaces, using the computational chemistry method Molecular Dynamics, which enables detailed studies of structural and dynamical processes. Quantum mechanical (QM) calculations have been performed to obtain the energetics of the materials as a function of structure. This data has been used to parametrize reactive force-fields (ReaxFF), since the catalytic processes require both far larger and longer simulations than the capabilities of QM calculations on current computers. The simulations show that when steps are present on the surface, during crystal growth of ZnO, the creation of energetically favorable structures is accelerated. At the ZnO - water interface, structures that favor hydrogen bonding is promoted. At low, monolayer, coverage water adsorbs both molecularly and dissociatively, whereas at high coverage dissociated adsorption is favored. During evaporation from the monolayers, the ratio of dissociated and molecular water is preserved. Surface steps stabilizes the dissociated state as well as increases the rate of dissociation. The dynamical properties of ZnO nanoparticles were explored using Raman measurements and simulation. In both simulation and experiment certain vibrations were suppressed in the nanoparticles, compared to bulk. The simulations show that a narrow surface region lack the bulk-specific vibrations.

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Karevan, Mehdi. "Understanding effects of nano-reinforcement-matrix interphase on the elastic response of polymer nanocomposites." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/52916.

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Current technology of polymer nanocomposites (PNC) emphasizes the need for fundamental understanding of the links between manufacturing method and macro-scale properties in order to engineer processing and performance of PNCs. The manufacturing method is one key variable that dramatically defines interfacial interactions on the nano-scale and thus the properties of polymer near the interface of nanomaterial/polymer or interphase, level of dispersion and the crystallization behavior of semi-crystalline PNCs. These factors in particular govern reinforcing mechanisms at the interface and consequently impart important properties to PNCs. The current approach to manufacturing PNCs involves trial and error with elaborate, costly and time consuming experimental characterization of PNCs. Therefore, a deep insight into the links among manufacturing method, interfacial interactions and bulk properties is essential in order to design and fabricate PNCs with engineered performance. The main goal of this study was to provide a better understanding of the effect of manufacturing methods on the macro-scale properties of PNCs, with a focus on the role of interfacial interactions, that can lead to fabrication of PNCs with multifunctional performance. The objectives of this research were to: i) determine the detail correlations among manufacturing method, nano- and microstructure and macro-scale properties of multifunctional exfoliated graphite nanoplatelets/polyamide 12 polymer nanocomposites with enhanced mechanical and electrical performance through systematic manufacturing and experimental methodologies, ii) understand correlations among nano-scale interfacial interactions, physical and structural properties of the polymer at the interface and macro-scale behavior of PNCs, and iii) evaluate effect of manufacturing method on electrical behavior of PNCs with directionally dependent performance. This study demonstrated key correlations among manufacturing techniques, interfacial interactions and macro-scale properties of PNCs. A methodology was introduced to understand and determine the characteristics of a complex constrained region produced at the interface of nanomaterials and polymer in semi-crystalline PNCs. Finally, the study illustrated superior electrical and morphological properties of selective laser sintering (SLS) processed parts over injection molded PNCs and thus confirmed the capability of SLS in the development of electrically conductive PNCs that exhibit multifunctional performance. In conclusion, the study provided an insight into the links among process, nano-scale interfacial interactions and microstructure to better understand effects of manufacturing technique on macro-scale properties of PNCs, which enables fabrication of conductive PNCs with multifunctional performance.

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43

Musa, Abu Bakar. "Wave motion and impact effects in viscoelastic rods." Thesis, Loughborough University, 2005. https://dspace.lboro.ac.uk/2134/10799.

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Two separate problems are to be investigated in this thesis. The first problem is the propagation of waves through a short rod (or slug) of viscoelastic material. The second problem is the study of impact of a short viscoelastic rod (or slug) on a stationary semi-infinite viscoelastic. rod. The viscoelastic materials are modelled as standard linear solids which involve 3 material parameters and the motion is treated. as one-dimensional. For the first study, a viscoelastic slug is placed between two semi-infinite elastic rods and a wave initiated in the first rod is transmitted through the slug into the second rod. The objective is to relate the transmitted signal to the material parameters of the slug. We solve the governing system of partial differential equations using the Laplace transform and we examine the propagating velocity discontinuity using discontinuity analysis and the limit theorem of the Laplace transform. We then approximate the solution of the propagating disturbance using the regular perturbation method. We invert the Laplace transformed solution numerically to obtain the transmitted signal for several viscosity time constants and ratios of acoustic impedances. We compare the results obtained using the above techniques. In the second problem, we first model the impact and solve the governing system of partial differential equations in the Laplace transform domain. Then we examine the propagating stress and velocity discontinuities using discontinuity analysis. We approximate the solutions of the propagating stress and velocity using the regular and multiple scales perturbation methods. In this problem, we first consider the slug is elastic and the rod is viscoelastic. Secondly, we consider the slug is viscoelastic and the rod is elastic and thirdly, we consider both materials are viscoelastic. Numerically we invert the Laplace transformed solutions for the interface stress and interface velocity for several viscosity time constants and ratios of acoustic impedances to determine whether the slug and the rod part company or remain in contact. Then we compare the results obtained using the discontinuity analysis, regular and multiple scales perturbation methods.

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Evans, Patricia. "An investigation into the effects of some school-industry agencies on the secondary school curriculum : a pragmatic approach through case studies." Thesis, University of Bath, 1987. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.377082.

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Zakalek, Paul Jan Verfasser], Larissa [Akademischer Betreuer] [Juschkin, and Thomas [Akademischer Betreuer] Brückel. "Magnetic interface effects in thin film heterostructures / Paul Jan Zakalek ; Larissa Juschkin, Thomas Brückel." Aachen : Universitätsbibliothek der RWTH Aachen, 2015. http://d-nb.info/1130590461/34.

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46

Yuan, Mei-Chun. "Effects of shallow water bottom interface roughness and volume fluctuations on broadband pulse resolution." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1996. http://handle.dtic.mil/100.2/ADA313437.

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Lepetit, F. F. A. "The study of hydrodynamic effects at the bristle to rotor interface in brush seals." Thesis, University of Oxford, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.411116.

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Wern, Chien Wei. "Fiber and fiber-matrix interface effects on the orthogonal cutting of fiber reinforced plastics /." Thesis, Connect to this title online; UW restricted, 1995. http://hdl.handle.net/1773/7133.

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Tewksbury, Theodore L. (Theodore Locke). "Relaxation effects in MOS devices due to tunnel exchange with near-interface oxide traps." Thesis, Massachusetts Institute of Technology, 1992. http://hdl.handle.net/1721.1/13238.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1992.
Includes bibliographical references (p. 299-317).
by Theodore L. Tewksbury III.
Ph.D.

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Zakalek, Paul Jan [Verfasser], Larissa [Akademischer Betreuer] Juschkin, and Thomas [Akademischer Betreuer] Brückel. "Magnetic interface effects in thin film heterostructures / Paul Jan Zakalek ; Larissa Juschkin, Thomas Brückel." Aachen : Universitätsbibliothek der RWTH Aachen, 2015. http://d-nb.info/1130590461/34.

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Dissertations / Theses on the topic 'Interface effects'

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