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 2703 for “"fin"”.
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Effect of Kinematics and Caudal Fin Properties on Performance of a Freely-Swimming Fin
… on comparing the performance of a free swimming fin over tethered fin both experimentally and numerically. Experimentally, we focus on the oscillatory form of locomotion where the caudal fin pitches to generate necessary thrust as seen in boxfish. We intend to investigate the Caudal fin …
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The influence of fin height and wall conductivity on integral-fin tubes during steam condensation
… of 12.7mm, a root diameter of 13.88mm, and fin heights ranging from 0.5mm to 1.5mm, in 0.25mm increments. The outside heat transfer coefficient was determined first by finding the overall heat transfer coefficient, Uo, then by using the Modified Wilson Plot Technique. The results indicated …
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An assessment of fin-tube thermal contact resistance in round-tube-plain-fin heat exchangers
Fin-and-tube heat exchangers are used in a wide variety of applications. Heat exchangers with expanded tubes are economical, but a drawback is the potentially large contact resistance between tubes and fins. Previous studies have investigated this topic under the exclusion of air-side convection. …
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Measurements and Predictions of the Heat Transfer at the Tube-Fin Junction for Louvered Fin Heat Exchangers
… investigation, a scaled-up model of the louvered fin-tube wall was tested in a flow facility. Although computational results for the isothermal tube wall are shown, control of the experimental isothermal tube wall proved to be unrealistic and only heat transfer measurements along the constant heat …
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Understanding Positional Information During Zebrafish Fin Regeneration
… This dissertation establishes zebrafish pectoral fins as a model system for studying and defining positional memory factors. This has been accomplished through careful morphological measurements, gene expression profiling, construction of transgenic zebrafish strains, and the use of various …
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2.672 experiment design : heat sink fin configurations
2.672 is an undergraduate mechanical engineering laboratory course which requires students to solve real-world problems using both theoretical calculations and laboratory experiments. Many of the experiments currently in the laboratory have aged and their replacement presents an opportunity for the …
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Flow Boiling in Meso-Scale Pin-Fin Coldplates
… Recent flow boiling studies have focused on fin-enhanced silicon microgaps and microchannels, given their importance in cooling high-power-density chips operating at ultra-high heat fluxes. However, the majority of the research on flow boiling in mini- and macro-scale configurations has been …
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Les carrières en fin d'activités: un potentiel paysager?
The present study focuses on the landscape concept and evaluations and is based on some issues related to the impact, restoration and ecological potential of the abandoned quarries. It proposes a landscape character assessment for non active limestone quarries resulting from the spontaneous …
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Optimization of Trapezoidal Fin Systems With Mutual Irradiation
Made available in DSpace on 2014-12-05T19:16:02Z (GMT). No. of bitstreams: 1 6206171.pdf: 2886153 bytes, checksum: 77c31abd1dc4bc2568e591b13f3afb70 (MD5) Previous issue date: 1962
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Preying on the predator : the shark fin controversy
The consumption of shark fin soup dates back to the Ming Dynasty in China, when it was served to emperors. Today, the cultural delicacy represents wealth, status, and power. Over the past 30 years, with the rising middle class in China, the demand for shark fins has surged. To address the …
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Design of small, low-cost, underwater fin manipulator
… torque. The manipulator is intended rotate the fins of the XAUV in order to enhance overall mobility and speed. The project includes a detailed design process resulting in a final design, which was built.
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Le travail de fin d'études, entre scientificité et magie
… pratiques d'évaluation s'agissant du travail de fin d'études, lequel clôture le cursus académique en haute école. Des pistes de formation sont en outre avancées.
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Morphology and evolution of caudal fin in lamniform sharks
Sharks have a distinct asymmetrical caudal fin referred to as heterocercal tail that is a key characteristic of the group and has diversified within sharks in ways that are correlated with lifestyle. However, practically no study examining the evolutionary trend and history of the caudal fin …
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Mapping sound: musical routes in fin-de-siecle Paris
… through social habit. I posit that sound in ¬fin-de-siècle Paris, when performed and consumed through rituals particular to a set of socially generated spatial conditions, assumed a navigational function, charting routes from the socially static interiors to the socially mobile exteriors of …
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Investigation of Fouling in Wavy-Fin Exhaust Gas Recirculators
… to be due to two primary reasons — deposition of fine soot particles and condensation of hydrocarbons known as dry soot and wet soot fouling, respectively. Several numerical simulations are performed to study the fouling process. Preliminary analysis of the particle forces for representative …
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The Fin de siècle Cultural Watershed in Gabriele d’Annunzio’s Novels
… I analysed Gabriele d’Annunzio’s answer to the fin de siècle crisis from Terra vergine to the end of Romanzi della rosa (Il Piacere, L’Innocente, Trionfo della morte), including Giovanni Episcopo, which along with L’Innocente is an expression of the so-called Slavic phase. Analysing this …
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The determination of heat-transfer coefficients from finned cylinders in an air stream at varying fin-plane/air-stream angles, fin spacing, and air velocities
… been made in the field of heat-transfer from finned cylinders in an air-stream with the fin-plane parallel to the air-stream. Most of these investigations have been made by the National Advisory Committee on Aeronautics (NACA) at Langely Memorial Aeronautical Laboratory, Langely Field, …
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