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 150 for “"break-in"”.
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Assessing the return on investment for various types of break-in training
This thesis presents a Return on Investment, or ROI, model for various types of break-in training by utilizing employee learning curves as a factor of the cost. The model captures the additional profit earned when a company makes an investment in break-in training, training employees receive at the …
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Break-in behavior of a tungsten oxide on silica catalyst during propylene disproportionation
This investigation consisted of a study of the break-in behavior of a tungsten oxide on silica catalyst during propylene disproportionation. A catalyst of 10 percent WO3 on silica gel (223 square meters per gram B.E.T. surface area) was used in a microcatalytic reactor. During the initial …
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On the Low-Frequency Current and Temperature Fluctuations Along the Shelf Break in the South Atlantic Bight
… temperature data collected along the shelf edge in the South Atlantic Bight were analyzed using a spectral analysis technique. The power spectra of both alongshore currents and temperatures (upon removal of seasonal trends) in the mid- to lower water column suggest a significant energy peak at 28 …
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The break-in behaviors of the cobalt oxide-molybdena-alumina catalyst and the tungsten oxide on silica catalyst during propylene disproportionation
The break-in behaviors of two similar heterogeneously catalyzed systems were studied during propylene disproportionation. A cobalt oxide-molybdena-alumina (CoO-MoO₃—Al₂O₃) catalyst was found to undergo a rapid increase in the catalytic activity during the first 100 seconds of contacting with the …
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A Break In Communication: The Synthesis, Characterization, DNA Binding and Photocleavage of a Novel Ruthenium Polypyridyl Complex Containing an Electronically Isolated Pyrene Group
… [Ru(bpy)2bpy-py]2+ (where bpy= 2,2’-bipyridine and bpy-py=N-(6-(4-(pyren-1-yl) butanamido) hexyl)-[2,2'-bipyridine]-5-carboxamide))) has been synthesized. The effect of electronically isolating the pyrene from the metal core on the complex’s ability to bind to and photocleave DNA was …
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Modeling of two-body fatigue wear of cylinder liner in internal combustion engines during the break-in period and its impact on engine lubrication
Internal combustion engines are widely utilized in modem automobiles. Around 10% of the total fuel energy is dissipated to heat due to mechanical friction, among which 20% is caused by the contact between the cylinder liner and the piston rings. The wear of cylinder liner not only leads to surface …
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Micromechanics of deformation and abrasive wear of fiber-filled elastomers
… was studied both with experiments and with finite element simulations. Wear experiments with elastomer seals exhibited two distinct regimes: an initial, "break-in" period followed by an "aggressive wear" period. During the break-in period, few abrasive particles are able to penetrate the …
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Factors affecting piston ring friction
The piston ring pack friction is a major contributor to the internal combustion engine mechanical friction loss. The oil control ring decides the oil supply to the top two rings in addition to being the major friction contributor in the ring pack. This work concentrated on the oil control ring …
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K-complexity and the Jordan-Wigner transformation
… operators to large, non-local operators. We investigate this claim directly in the case of the JW transformation which maps the XY Heisenberg chain to the Kitaev chain. We numerically calculate the complexity of dual operators, and analyse the early and late time behaviour and symmetries. We …
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Settlement and landscape in the Northern Isles; a multidisciplinary approach. Archaeological research into long term settlements and thier associated arable fields from the Neolithic to the Norse periods.
The research contained in these papers embodies both results from direct archaeological investigation and also the development of techniques (geophysical, chronological and geoarchaeological) in order to understand long-term settlements and their associated landscapes in Orkney and Shetland. …
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The Impact of Privatization on Stock Market Development
This dissertation examines the relationship between stock market development and the privatization of state-owned enterprises (SOE's). Many authors have asserted that privatization leads to enhanced stock market development, but few authors have explored the theoretical mechanisms through which …
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Decreasing Interruptions at the Bedside
<p>Interruptions are a disruption in a nurses’s routine, thereby causing a break in work and thought process. Medication administration demands full attention from nurses to ensure accurate doses, preparations and administration. Triaging interruptions can help to decrease the inevitable …
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A Shelter in El Salvador
… composed of two bedrooms and two bathrooms sits in a landscape of towering pine trees, lush orange groves, and tall grasses. Approaching from the west, a stepped lava tock garden wall protects the terraces of gravel and grass that bound and hold the concrete walls of the house. Within these wall …
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The Synthesis of 5-(p-Methoxyphenyl)-Hexahydroindanedione-1,7-Delta3-9
… of very important compounds that are found in both plants and animals contain a cyclo-pentanoperhydrophenanthrene carbon skeleton as part of their molecules. These compounds, commonly grouped under the heading "steroids", include the sterols, the bile acids, the sex hormones, the adrenal …
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German Literary Travelogues Around the Turn of the Century, 1890-1914
… cyclical pattern. After a short-lived revival of interest from 1890 to 1892, resulting from the emergence of Impressionism, the younger generation of writers did not practice the genre until after 1900. Why this break in development should have occurred is one of the questions addressed in the …
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The War Powers Resolution: Reassessing the Constitutional Balance of Power
… held on the role of Congress and the President in entering war. More specifically, this thesis takes a look at President Richard M. Nixon’s influence on the 93rd Congress’s decision to pass the War Powers Resolution after multiple failed attempts at similar legislation. Through a major domestic …
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The effects of habitat change on bird diversity and community structure in a mesic Savanna landscape
Many conservation areas are effectively islands in a sea of agricultural or urban development in which natural disturbance regimes have been altered or limited. Managers of such areas often need to artificially maintain disturbance regimes in order to control ecosystem processes such as vegetation …
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Using foreign currencies to explain the nominal exchange rate of rand
… Dollar exchange rate has been very volatile since the unification of the duo-exchange rate in 1995. Many researchers have successfully found some economic variables as the long-run determinants of Rand exchange rate. This paper tries to substitute those economic variables with some foreign …
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Essays on the inventory theory of money demand
The goal of this dissertation is to examine the theoretical and empirical implications of the inventory theoretic approach to the demand for money. Chapter 1 reviews the existing inventory theoretic frameworks and empirical money demand literature and provides an overview of this thesis. One of the …
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The Ottoman Empire in the first world war: A rational disaster
<p>The Ottoman Empire's entry into the First World War in October 1914 represents a break in over a century of diplomacy in the Middle East. Previous study of late Ottoman politics has focused more upon the European states with imperial interests in the Middle East and has not adequately explained …
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