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Showing 1 to 20 of 45 for “"wedge-shaped"”.
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Experimental investigation of normal, sonic injection through a wedge-shaped nozzle into supersonic flow
… of normal, sonic, helium injection from a wedgeshaped nozzle and a circular nozzle into a Mach 3 free stream with a total pressure of 6.5 atm and a total temperature of 294 K was conducted. The expansion ratio and the mass rate of flow of both nozzles were matched in order to determine the …
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A comparison of two computer models of sound propagation for a wedge shaped ocean over a penetrable bottom
… of determining the acoustic pressure in a wedge shaped wave guide is examined. Two computer models, one using the method of images, the other using coupled normal modes, are compared. This comparison is over the benchmark wedge of the Acoustic Society of America. Three scenarios were …
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Wedged Vortex Generator Applications for Marine Vessels
… computational fluid dynamics analyses identified wedge-shaped VGs as the optimal design for flow manipulation. Comparative testing of three wedge shaped VG sizes at 1.3 m/s revealed the most effective configuration, which was subsequently evaluated across speeds ranging from 1.0 m/s to 1.6 m/s. …
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Synthetic Gecko Inspired Dry Adhesive Through Two-Photon Polymerization for Space Applications
… in this thesis were the tilted mushroom-shaped and wedge-shaped designs, which could both maximize adhesion by shearing the micropillars toward the tilted direction when preload force is applied. The improved microstructure fabrication process could produce micropillars in the height of …
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Micro & nano scale mechanical testing and assembly with applications to metal based microsystems
… with long rectangular diamond punches and long wedge shaped indenters. It is noticed that the contact pressure of rectangular punches pressed into single crystal Al strongly depends on the punch width, while that of long wedge shaped indenters depends on the included wedge angle. We observed …
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The New York-Alabama Magnetic Lineament: its reflection character and relationship to the Grenville front
… correlated to lower crustal depths, image a wedge-shaped block beneath the shelf strata of the Cumberland Plateau and Valley and Ridge provinces of eastern Tennessee. Two dimensional gravity and magnetic modeling corroborate the interpretation that the contrast in density and magnetic …
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Analytical and Experimental Characterization of a Linear-Array Thermopile Scanning Radiometer for Geo-Synchronous Earth Radiation Budget Applications
… detector mounted on the wall of a mirrored wedge-shaped cavity. The objective of this research is to provide analytical and experimental characterization of the proposed radiometer. A dynamic end-to-end opto-electrothermal model is developed to simulate the performance of the radiometer. …
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A quantitative approach to the evolution of the central Walvis Basin offshore NW-Namibia : structure, mass balancing, and hydrocarbon potential
… to recent depositional centre with a typically wedge-shaped postrift sedimentary succession covering an area of 105000km2. A 2D model transect across the central Walvis Basin and adjacent onshore areas is used as a case study to investigate quantitatively the denudational history of the evolving …
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Relationship between cutting parameters and bit geometry in rotary cutting
… angles ranging from 70° to 100° and two wedge shaped bits with different gage widths were used in this study. The relationship between penetration and cutting forces and the bit geometry parameters were evaluated. The relationship between specific energy consumed, specific respirable dust …
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Images of Remembered Earth
… quality is exhibited through the employment of wedge-shaped musical ideas and through the utilization of higher and lower registers. O'Keeffe's use of color in the painting influenced the orchestration of the music and is manifested in two ways: 1) gradual transformation of timbral colors and 2) …
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Cooling and internal waves on the Continental Shelf
… for linear internal waves are found for a wedge-shaped bathymetry with bottom friction. Bottom friction is capable of entirely dissipating the waves before they reach the coast, and waves traveling obliquely offshore are reflected back to the coast from a caustic. The internal wave climate …
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V- Shaped Defects – Epidemiology, Clinical Picture and Obturation Opportunities // Клиновидни дефекти – епидемиология, клинична картина и възможности за обтуриране
Wedge-shaped defects, such as non-carious disease of the hard dental tissues, are observed in a small percentage of the patients studied. They are of interest to the dentist because they lead to some disorders associated with increased sensitivity of the affected teeth, eating disorders, plaque …
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Proton-Implanted Photonic Crystal and Holey Vertical -Cavity Surface -Emitting Lasers
Etched photonic crystals and wedge-shaped holes are fabricated in the top mirror of proton-implanted vertical-cavity surface-emitting laser (VCSEL) diodes to achieve single-fundamental-mode operation. A model of the effective transverse index of refraction profile for both cases is presented. The …
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The Highland Charge and the Jacobite Rebellions
… and throw them to the ground, regroup into wedge shaped formations behind the musket-fire smokescreen, and then charge sword-in-hand into the opposing army's lines. The Highland Charge repeatedly defeated the British forces, which should have been superior in virtually every respect. The …
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Stationary edge flames in a wedge with hydrodynamic variable-density interaction
… is introduced which places the edge flame in a wedge-shaped counterflow with a mass sink, providing control over the position of the edge flame, and allowing access to stationary, hydrodynamically-coupled retreating flames (at high strain). This framework is first used to evaluate edge flames …
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Subsurface structural geology of the eastern part of the Büyük Menderes Graben, western Turkey: implications for structural evolution of the Büyük Menderes and Alasehir Grabens
… in the center of the graben, and illustrate a wedge-shaped geometry towards the north and south-dipping graben bounding faults flanking the graben. Due to this geometry, syn-sedimentary extension in the graben has not formed a rollover structure and associate extensional folds and faults. The …
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The reprocessing and extended interpretation of seismic reflection data recorded over the Hayesville-Fries thrust sheet in southwestern North Carolina
… in this zone. The truncations result in a wedge-shaped geometry that resembles the trailing edge of an antiformal stack duplex. The improved data also show 1) a shallow band of reflections that correlate with the Shope Fork and Chunky Gal Mountain faults within the Blue Ridge allochthon, 2) …
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ALLOGRAFT DERIVED BIOSCAFFOLDS FOR TISSUE ENGINEERING OF THE MENISCUS: AN IN VIVO OVINE STUDY AND THE EFFECT OF HYPOXIC CULTURE ON SEEDED MENISCUS CONSTRUCTS
The meniscus is a fibrocartilagenous wedge shaped semilunar tissue that plays an important role in knee joint function and stability. The structure of the meniscus is integral to its function as it provides protection and cushion to the knee joint. Irreparable meniscus tears and meniscus …
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Basal constriction : shaping the vertebrate brain
… during which a band of 3-4 cells becomes wedge-shaped. Subsequently, these cells apically expand by twice the width of the surrounding cells. Basal constriction is laminin-dependent, with actin enriched at the basolateral surface of the constricted cells. Wnt5 is highly expressed …
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The East Greenland Coastal Current : its structure, variability, and large-scale impact
… (EGCC), a low-salinity, high velocity jet with a wedge-shaped hydrographic structure characteristic of other surface buoyancy-driven currents. The EGCC was observed along the entire Greenland shelf south of Denmark Strait, while the transect north of the strait showed only a weak shelf flow. This …
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