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 20 of 117 for “"monolith"”.
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Monolith Catalyst Supports for Hydrogen Production
… desired to shift from packed bed reactors to monolithic reactors to overcome these issues. :Vfonoliths arc attractive due to their high open frontal area., stability, good mass and heat transfer, as well as easy sea.ling up. The main focus of this study is to coat. monoliths ,vith a. …
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Contradiction in the making of a sacred monolith
This Thesis deals with the understanding of the essence of sacred object and sacred space as related to the way they are composed and perceived as sequences of intersecting architectural motifs. The design project is a sacred community for religious living amidst a secular urban context - a home …
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Spatiotemporal Temperature and Concentration Measurements in a Monolith Reactor
… the thermal and concentration fields inside the monolith reactor. The concentration fields can be studied by a Spatially Resolved Capillary Inlet Mass Spectrometer technique (Spaci-MS). On the other hand, the temperature field is often measured by positioning thermocouples at various locations …
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Spatio-Temporal Dynamics of Reaction Zones in Catalytic Monolith Reactors
Catalytic monolith reactors are widely used in exhaust after-treatment systems. Unlike traditional chemical reactors which are commonly operated around certain steady-states, monolith reactors are almost always in transient states due to the nature of their applications. In this work, we studied …
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Some characteristics of two-phase flow in monolith catalyst structures.
Thesis. 1976. Ph.D.--Massachusetts Institute of Technology. Dept. of Chemical Engineering.
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Power at Battersea : understanding post-industrial Britain through an art deco monolith
In the modern age, a building serves a purpose beyond that of its intended architectural function. This is especially true of famous buildings, which become important as icons independent of their physical presence. When a building reaches a certain level of fame, its symbolic significance shifts …
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Breaking Down the Monolith: Using Network Methods to Identify and Analyze Chicago’s Largest Landlords
… that Chicago’s large landlords are not monolithic. I argue that understanding landlord behaviors requires a nuanced and multi-factorial framework. By addressing both types of obscurity, this thesis bridges two largely separate bodies of literature. Such an approach allows for a strong …
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Ultra-fast Imaging of Two-Phase Flow in Structured Monolith Reactors; Techniques and Data Analysis
… resonance imaging (MRI) techniques to probe the “monolith reactor”, which consists of a structured catalyst over which reactions may occur. This reactor has emerged as a potential alternative to more traditional chemical engineering systems such as trickle bed and slurry reactors. However, being a …
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Disaggregating the Monolith: A Case Study on Varied Engineering Career Orientations and Strategies of Black Women in Tech
Diversifying the engineering workforce has been a national imperative for several decades. The increased participation of Black students in engineering is commonly identified as a crucial area for improvement. Yet, the rates of engineering degree completion are slowing for Black women in …
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Development of Polymer Monoliths for the Analysis of Peptides and Proteins
Several novel polymer monoliths for the analysis of peptides and proteins were synthesized using polyethylene glycol diacrylate (PEGDA) as crosslinker. Photo-initiated copolymerization of polyethylene glycol methyl ether acrylate and PEGDA yielded an inert monolith that could be used for size …
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Development and characterisation of monolithic silica stationary phases for ion chromatography
Silica based monolithic HPLC columns have received much attention in recent years, particularly those modified for reversed-phase separations. However, for ionexchange, silica based monolithic columns have received only limited attention. Therefore, the aim of this work was the development and …
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Investigation of monolithic materials for protein sample preparation
… research in recent years has focused on porous monolithic materials since they are highly permeable to liquid flow and show high mass transfer compared with common packed beds. This study has focused on the use of organic polymer- and inorganic silica-based monolithic materials for protein …
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Behavior of triplex silicon carbide fuel cladding designs tested under simulated PWR conditions
… as Triplex, consists of three layers: an inner monolith, a central composite, and an outer environmental barrier coating (EBC). The inner monolith consists of dense SiC which provides strength and hermeticity to contain fission products. The composite layer is made of SiC fibers, woven around …
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High performance liquid chromatography-tandem mass spectrometry of pharmaceuticals and personal care products in environmental and biological matrices
… chromatography (HPLC) the advantages of new monolithic stationary phases over traditional particle packed beds is becoming apparent. In this work, the performance of a half-metre monolithic column was characterised using van Deemter plots. The separation efficiency of the monolith was …
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Coating of catalyst supports: links between slurry characteristics, coating process and final coating quality
… vehicles across the world has caused the use of monolith catalysts in automotive emission control to become ubiquitous. Control of the adherence and homogeneity of the platinum group metal (PGM) coating onto the monolith block, to maximise catalytic performance for a minimum PGM loading, is …
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Design optimization of advanced PWR SiC/SiC fuel cladding for enhanced tolerance of loss of coolant conditions
… of the CMC voids leading to the weakening of the monolith matrix and brittle fracture. Stress field in the cladding design is simulated by finite element analysis under service and shutdown conditions at both the core's middle height and at the end of the fuel rod. Stresses in the fuel region are …
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3D-printed adsorbents for gas separations: A material development, kinetic assessment, and process performance investigation
… the kinetic properties of printed adsorbent monoliths, and 3) assess their process performances. Objective one was addressed by developing five 3D printing techniques: i) oxide seeding and secondary MOF growth (Paper I), ii) direct ink writing of amine-modified MOFs (Paper II), iii) polymer …
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Photocatalysis in a novel semiconducting optical fiber monolithic reactor for wastewater treatment
… a novel photocatalytic optical fiber monolith reactor (OFMR), which employed a ceramic multi-channel monolith as a support for TiO2 and quartz fibers inserted inside the monolithic channels as both a light-transmitting conductor and a support for TiO2, was developed for wastewater …
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EXILES OF HETERONORMATIVITY: QUEER REPRODUCTION AND FEMALE SAME-SEX FAMILIES IN SINGAPORE
… This dissertation challenges the rhetorical monolith of the traditional family by documenting intimate stories of alternative reproduction from the experiences of female citizens who have been treated as exiles of heteronormative kinship.
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