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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 45 for “"Centrifugal Force"”.
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Natural Modes of Vibration of Twisted Unsymmetrical Cantilever Beams Including Centrifugal Force Effects
Made available in DSpace on 2014-12-04T23:10:44Z (GMT). No. of bitstreams: 1 0001562.pdf: 4591678 bytes, checksum: 8958241301c0f0dc04d5b458a9525069 (MD5) Previous issue date: 1949
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Centrifugal recovery of embryonic stem cells for regenerative medicine bioprocessing
… to examine the bioprocessing impact of centrifugal recovery cells. A micro scale-down approach was used to examine the e�ffects of centrifugal force, centrifugation time and process temperature on both the yield and biological characteristics of cells subjected to batch centrifugation. …
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Centrifugal infiltration of particulate metal matrix composites : process development and fundamental studies/
… liquid infiltration process utilizing centrifugal force was designed and laboratory equipment developed. In this process, a mold containing reinforcing materials was located at the end of an elongated runner, which was filled with a molten metal. Rotation of the runner created …
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Hydrocyclone fractionation of chickpea flour and measurement of physical and functional properties of flour and starch and protein fractions
… were determined. No chemical interactive force was detected between starch granules and protein particles. Therefore, a physical separation technique, i.e. applying centrifugal force in a hydrocyclone, was employed to separate starch granules from protein particles. Using a hydrocyclone, …
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The flotation of fines
… the effect of increasing gravity by the use of centrifugal force on the collection and separation of finely ground ores. The collection of minerals appeared to be hindered by increased gravity, but the separation was enhanced by increased gravity in the tests where conditions were conducive to …
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Magneto-centrifugal Wind with Applications to Astrophysical Accretion Disks
… the structure of radially self-similar magneto-centrifugal winds with a wide range of magnetic flux distribution, mass loading, and injection speed at the base of the wind. A variety of wind structures is obtained, including winds driven by magneto-centrifugal and magnetic pressure gradient …
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Fluidodinamica bifase in condotti elicoidali per applicazioni nucleari
… it is well known, the secondary flow due to the centrifugal force in the cross section of the helicoidal pipes is a significant factor affecting the thermal-fluid dynamics.
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Rotational speed dependent motor properties
… (AC) motors experience back electromotive force (EMF) at high rotational speeds, which acts against applied voltage and drops motor efficiency steeply. By reducing the magnetic flux surrounding the coil of the stator, back EMF can be reduced and motor efficiency can be maintained at any …
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Melt motion in floating-zone process for single crystal growth with an axial magnetic field
… is studied by using asymptotic expansion. Centrifugal force, crystal growth speed, buoyancy, thermocapillarity and electromagnetic body force are the driving forces involved in the floating-zone process for growing single crystal. The strong, DC magnetic field eliminates the inertial effect …
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The underwater separation of diamantiferous marine gravels
… that both use rotational flow to create a centrifugal force, which forces the gravel onto a screening surface. The test work carried out investigated the effect of various variable parameters on the separation efficiency of each device.
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Dynamic Response and Containment of Blade Shedding in Gas Turbine Engines
… under a periodic contact load and decaying centrifugal force field is obtained by modeling the blade as a rotating tapered Timoshenko beam. The dynamic behavior of realistic advanced MMC blades is determined using a unified beam formulation and micromechanics homogenization scheme. The …
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Super-Resolution Force Spectroscopy for Revealing Sub-nucleotide Motion in Ribosomal Frameshifting and DNA Methylation
… focuses on applying super-resolution force spectroscopy (SURFS) as a unique tool to resolve frameshifting products and intermediate states, with unprecedented resolution. Two different forms of forces have been studied, centrifugal force and acoustic radiation force. Using centrifugal …
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Centrifuge-aided Micromolding and Sintering of Micron- and Submicron-sized Ceramic Features
… submicron-sized ZnO features. By introducing a centrifugal force, the shear-thinning behavior of the suspensions is utilized, and the cavity filling process and the diffusion of trapped air out of the features are accelerated. The drying shrinkage is decreased by increasing the density of the …
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Experimental tests of parallel impurity transport theory in Tokamak plasmas
… large mass enhances inertial effects like the centrifugal force from toroidal rotation, and( can lead to accumulation of heavy impurities on the outboard side of a flux surface. Their high charge enhances ion-impurity friction and makes impurities sensitive to small poloidal variations in the …
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Investigation of the cooling characteristics of rotating liquids
… the blade and drum, combined with the very large force field associated with the centrifugal force caused by the rotation of water, sets up strong convection currents, which resulted in a very efficient heat transfer. Using the Havier-Stoke's and the continuity equations, applying Prandtl’s …
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Structural analysis and optimization with a locally-Cartesian Hybrid Shell Model
… demonstrated for a simplified rotor blade in a centrifugal force field, featuring non-uniform forcing, non-zero Poisson ratio, large deflection, and optimization of multiple parameters. The suitability of HSM as an intermediate fidelity conceptual aircraft design tool is thus demonstrated.
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Transient vibrations of a cantilever beam rotating at a constant angular acceleration
… result of shear deformation. The effect of centrifugal force was also analyzed. At large values of time this force caused the beam to return to its undeformed axis. Solutions for a short time interval extending over 1100 steps, a large time interval extending over 275 steps, and another …
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Magnetically enhanced centrifugation for continuous biopharmaceutical processing
… particles with magnetic field gradients, forced convective flows and large centrifugal forces. Magnetically susceptible wires in a uniform magnetic field facilitate the capture and aggregation of magnetic particles on wires, and a centrifugal force perpendicular to the magnetic force …
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A Combined Piezoelectric Composite Actuator and Its Application to Wing/Blade Tips
… chord and applied voltage because there is no centrifugal force. For an active blade tip subject to incompressible flow and 2D quasi steady airloads, its twist angle is related not only to aerodynamic moment and applied voltage but also to coupling terms, such as the trapeze effect and the …
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An analytical investigation of a Panhard rod restraint for beam-axle vehicle suspensions
… roll stiffness as a function of the magnitude of centrifugal force excitation, roll input, vehicle load and the Panhard rod design parameters. Two roll plane dynamic models of the candidate vehicle with nine-DOF and five-DOF are then formulated and analyzed under excitations due to directional …
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