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.
Results
Showing 1 to 20 of 26 for “"Support interactions"”.
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Discourse Strategies in Technical-support Interactions
… lack of research on the discourse of technical-support interactions. Researchers have explored successful practices for recruiting technical-support personnel, constructs for determining user satisfaction in survey instruments, and discourse moments of miscommunication and empathy. Even though …
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Metal-support interactions on Fe-based Fischer-Tropsch catalysts
‘Metal support interactions’ is a term used to describe a phenomenon whereby the interaction between the active metal and the support material is strong enough to affect the catalytic activity and selectivity of the active phase. Primarily, there are two theories described in literature to explain …
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Inverse model systems to investigate metal-support interactions in Fischer-Tropsch catalysis
… aims to gain insight into the effects of metal-support interaction in Co/SiO2 catalysts using an inverse model system by modifying Co3O4 nanocrystallites with silanes (i.e. tetraethoxysilane, trimethyl chlorosilane, triphenyl ethoxysilane). It is postulated that the formation of Co-O-Si will …
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Model systems for the investigation of metal-support interactions in cobalt based Fischer-Tropsch
… chain olefins [1]. The interaction between the support and the active metal, Co, has been observed to affect the activity and selectivity of the FT synthesis [2]. In order to investigate metal support interactions independent of other support effects, the inverse method was used in the synthesis …
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Preferential oxidation of carbon monoxide in hydrogen-rich gases over supported cobalt oxide catalysts
… during the CO-PROX reaction are very few. Metal-support interactions also play a significant role on the catalyst's performance. Strong metal-support interactions (SMSI) in Co₃O₄/Al2o₃ catalysts give rise to irreducible cobalt aluminate-like species. Under CO oxidation and CO-PROX reaction …
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Spectroscopic Studies of Small Molecule Oxidation Mechanisms on Cu/TiO2 Aerogel Surfaces
… once a fundamental understanding of the interactions between material surfaces and adsorbed molecules is developed. In situ infrared spectroscopy and mass spectrometry methods were employed to probe interactions at the gas-surface interface of oxide-supported metal nanoparticle materials. …
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Dyadic analysis of positive and negative social support behaviors and psychological outcomes in romantic couples
… current study examined the effect of social support behaviors on psychological adjustment in couples. Couples (<em>N</em> = 123) completed surveys assessing depressive and anxiety symptoms. Observational support interactions were conducted to measure partners’ positive and negative affective …
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Our stories heal -- mind, body and soul : pivoting to a healing-centered engagement in an applied theatre residency
… interact with young people to bring justice and support interactions that might be healing and restorative. Ginwright’s 2022 Book Four Pivots: Reimagining Justice, Reimagining Ourselves argues how facilitators in social justice work with youth might move toward (HCE) from four pivots: awareness, …
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Alumina-modified cobalt catalysts for the Fischer-Tropsch synthesis
… studied for almost a century, the effects of the support material on activity, selectivity and stability of the catalyst remain obscure. This study aims to gain fundamental insights into the effect of metal-support interactions in cobalt alumina based Fischer-Tropsch catalysts. To accomplish this, …
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Structural and mechanistic identification of heterogeneous catalysts
… including low weight loadings, strong metal-support interactions and heterogeneity in active component speciations. The following work details how these challenges may be addressed through a review of how a multimodal approach including scanning transmission electron microscopy, diffuse …
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Agency in the Midst of Illness Uncertainty: How Women and Families Live without a Diagnosis
… lived experiences with symptoms and social support, interactions with the medical system, and agency in the context of such uncertainty. Findings also model a System of Illness Uncertainty that contends that women's experiences with illness uncertainty is an endless process that changes over …
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SiC and B₄C as electrocatalyst support materials for low temperature fuel cells
Supported nano-catalyst technologies are key for increasing the catalyst utilisation and achieving economically feasible platinum metal loadings in hydrogen polymer electrolyte fuel cells (PEFCs). High surface area carbons are commonly utilised as support materials for platinum due to low cost, …
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Parental social support in children and adolescents : validation of the Interpersonal Resilience Inventory—Adolescent Version.
… of positive and negative parent social support interactions in relation to affective and emotional regulation outcomes. Methods Participants were a total of N = 443 adolescents aged 10-15 that were current 6th through 8th grade students at two middle schools in urban areas in the United …
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On the mechanism of carbon nanotube formation by means of catalytic chemical vapour deposition
… Additionally, the effects of different catalyst support interactions were explored by testing combinations of metal catalysts and support media. This study showed that the support has a strong effect on the chemical activity and morphology of the catalyst. The results presented show that the …
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How do technologies support School Direct students' learning on a PGCE with Qualified Teacher Status within a Networked Learning Model
… data and transcripts of students’ social media interactions. The analysis of these has been performed along three lines of enquiry to establish who is talking to whom, what they are talking about and why they are talking about it. The findings bring together a novel approach to the application …
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Synthesis, Characterization and Activity of Palladium Catalysts on the Dual Support of Cerium and Aluminum Oxides
… of Pd onto ceria due to strong PdO-CeOx interactions. This research implies that the sequence of impregnation and calcination temperature could alter catalytic properties and activity for methane combustion through PdO/PdOx -support interactions.</p>
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Tuning the Morphology and Electronic Properties of Single-Crystal LiNi<sub>0.5</sub>Mn<sub>1.5</sub>O<sub>4-δ</sub>
… the concept of utilizing LNMO as a tunable support for heterogeneous metal nanocatalysts, where alteration of the support structure and electronics can have an influence on catalytic properties due to unique support effects. Ultimately, this work illustrates the tunable nature of …
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Effect of Pt Particle Size and Electronic Properties on the Hydrogenation of Ethylene
… as ceria (CeO2) have gained attention due to the support's ability to temper the electronic properties of the metal. Therefore, this study first investigates the variation in Pt nuclearity on reducible CeO2 and its effect on the electronic properties of the metal, as well as the catalytic activity …
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THE COLLECTIVE PERCEPTIONS OF K-12 SPECIAL EDUCATION TEACHERS DURING THE COVID-19 PANDEMIC
… unique set of challenges when considering how to support the complex needs of diverse learners. This included student support for engagement with access to technology, knowledge of various applied technological pedagogical skills, teacher preparation, technical training, ongoing professional …
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