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 28 for “"High-speed photography"”.
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Determination of the splash properties of various liquids using high-speed photography.
Thesis. 1976. B.S.--Massachusetts Institute of Technology. Dept. of Physics.
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Ultra High-Speed Photography Using a Pulsed Ruby Laser and an Acousto-Optic Beam Deflector
Made available in DSpace on 2014-12-12T00:25:54Z (GMT). No. of bitstreams: 1 7412040.pdf: 2139361 bytes, checksum: a61e8adbc92fadfa53736dd6ab338d7b (MD5) Previous issue date: 1973
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Some Aspects of the Mechanics and Mechanisms of Dynamic Brittle Fracture
… resolution is one potential limitation of high-speed photography, as used in the method of caustics, and in dynamic photoelasticity.
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Ultrasonic Welding of Glassy Thermoplastic Polymers
… materials. Ultrasonic welds were studied using high speed photography, the measurement of polymer chain orientation and residual stress, the measurement of contact dynamics at the initiation of welding and the influence of polymer chain interdiffusion by reference to simple thermal welds. A …
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Ultra-Smooth
… effect on the generation of such forms through high-speed photography and slow-motion film, this thesis challenges the notion of architecture as an act of defying gravity and instead embraces it. While smoothness, which draws attention to skin and surface, favors the architect as a designer of …
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The erosion of metals
… at normal impingement has been observed using high-speed photography.
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Investigation on the Performance Characteristics of Two Valveless Pulse Jets Operating in Phase Opposition
… in a coupled manner and through the use of high speed photography, it was established that the engines were firing alternatively. The total thrust per engine and the total-thrust specific fuel consumption for the coupled engines were inferior to the respective values for Engebretson’s single …
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The Interactions of Hot Spheres and Volatile Liquids
… accompanied by a noise and a pressure wave. High speed photography was used to study this fragmentation phenomenon. Photographs provides the time interval required for fragmentation. Results demonstrated that an entire explosive interaction requires only 2 milli seconds for completion. The …
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Interaction of Drops falling into Volatile Liquids
… The photographic techniques were three-fold: high speed photography, stroboscopically illuminated photography and short exposure, spark-illuminated photography. The effect of a pressure pulse within the coolant was also studied for both small and large melt masses. The result was very often an …
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Journey with Ganapati : a media exploration and analysis of Hindu religious ritual components
… with the tools of computer graphics, animation, high speed photography, and to entice the imagery in a cocoon of sound spirals with the mechanics of structural and layered sound. To attempt a marriage of the observed ethnographic ritual with the contrived experiential state that modern …
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Biomedical ultrasonics, cavitation, and sonoporation
… denaturation and coagulative necrosis. For high-resolution focused ultrasound microsurgery, high working frequencies are necessary. We manufactured a highfrequency, high-intensity focussed ultrasound transducer, using lithium niobate as the active element. The transducer was capable of …
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Experimental investigation of flame propagation in long, narrow tubes
… of small diameter (6.4 mm) was studied using high-speed photography and Particle Streak Velocimetry (PSV). Several regions of propagation were established, including an initial region of uniform propagation, a subsequent region of vibratory propagation characterized by high-amplitude axial …
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Investigation of the Light Emitters in the Aluminum - Water Reaction
… connection with spectroscopic measurements and high speed photography to investigate the nature of the radiant emission from the Al - H2O combustion process. Small aluminum wires were successfully ignited under water at various pressures, but a complete, self sustained reaction of the aluminum …
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Experimental Study of Two-Phase Cavitating Flows and Data Analysis
… very low pressure. The hydrodynamic happened in high-speed flow, where local pressure in liquid falls under the saturating pressure thus the liquid vaporizes to form the cavity. During the evolution and collapsing of cavitation bubbles, extreme physical conditions like high-temperature, …
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Characterisation of particulate matter originating from automotive occupant restraints
… spectrometer (DMS), gravimetric filtration, high speed photography and electron microscopy. A comparison of an effluent test tank and a vehicle of a comparable volume showed that the tank was able to replicate a vehicle environment and provide measurements with acceptable levels of inter-test …
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Experimental investigation of liquid fragmentation in hypersonic cross flow
… atomization mechanisms are investigated using high-speed photography, Schlieren photography, flow visualization and Phase Doppler Interferometry techniques. All experiments are conducted at the H-3 Mach 6 wind tunnel facility of the von Karman Institute. Water is used for all tests. Freestream …
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Experimental study of flow boiling under subatmospheric pressures in a vertical square channel
… and departure frequencies are measured via high-speed photography and compared to existing models. CHF data are presented as a parametric study of pressure from 20 kPa to 108 kPa, mass flux from 45 kg/m2s to 190 kg/m2s, and inlet subcooling from 0 to 10 K. Heat flux is gradually increased …
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Modeling of Transient Response of an Elastic Beam With Flexible Supports and Variable-Location Impact
… shaker, and the deflection was captured by a high speed camera. Numerous test cases were conducted that varied pulse duration, pulse amplitude, clearance, and contact location. Decreasing the pulse duration lowers all deflection amplitudes, but the time in contact is insensitive. No gap causes …
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Vibrating lubricant-infused porous surface for enhanced liquid droplet transport
… film, and vibrating device on the fast sliding speed is discussed, in particular (i) transverse membrane velocity and resonant mode shapes of SLIPS membrane studied by laser vibrometer, and (ii) oscillatory droplet contact line dynamics studied by high-speed photography. Finally, we further …
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Seeing systems: A rhetorical history of visual media at the Massachusetts Institute of Technology, 1939-1969
… electrical engineer Harold Edgerton developed a high-speed photography system that would be taken up in machine research, art photography, and nuclear weapons testing. In the 1950s, scientists in the Physical Science Study Committee partnered with filmmakers to create educational films that …
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