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 11 of 11 for “"test particles"”.
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Oral uptake and distribution of microspheres
… evidence suggesting that the gastrointestinal tract (GIT) may be penetrated by sub-micron sized polymeric particles which have the capacity to deliver therapeutic compounds. We investigated this, initially with Fluoresbrite™ carboxylate latex microspheres (0.87 m diameter) which were …
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A Study of Fusion Product Effects in Field-Reversed Mirrors
… models. The first code (MCFRM) treats fps as test particles in a fixed background plasma, which is represented as a fluid. MCFRM includes a Monte Carlo treatment of Coulomb scattering and thus provides an accurate treatment of fp behavior even at lower energies where pitch-angle scattering …
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The discrete velocity method in plasma physics
… of two problems studied is the relaxation of test particles in a Maxwellian bath. This is a linear version of the second problem and serves as a test experiment for the method and the computer code. The second problem is the nonlinear relaxation of an anisotropic velocity distribution of …
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A torsion pendulum ground test of the LISA Pathfinder Free-fall mode
… be actively compensated in order to hold the test particles centred inside an orbiting apparatus. The actuation force applied to compensate this effect introduces a dominant source of force noise in the mission noise budget. To suppress this noise source and avoid actuation instabilities, a …
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Particle acceleration at null-point current sheets in the solar corona
… algorithm to model the full motion of particles in such fields, switching to a Runge-Kutta guiding-centre scheme (adapted from the the St Andrews party orb code1) where appropriate. These methods were applied to simulate particle motion in two MHD-generated evolving fields: an isolated …
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Development of a static bioactive stent prototype and dynamic aneurysm-on-a-chip(TM) model for the treatment of aneurysms
… stent involves the study of cells that can be tested against the biomaterials that constitute the stent itself. The second step is to test particles/cells in a microfluidic environment. Therefore, biocompatability data was collected against PDMS, bacterial nanocellulose (BNC), and magnetic …
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Universe phenomenology as understood from gravitational theories with non-vanishing torsion: cosmology and black holes
… the Riemann-Cartan space-time. It is noted that test particles follow extremal curves which are auto-parallel curves of the LeviCivita connection. Therefore, one must turn to the standard, torsion-free Raychaudhuri equation when studying the focusing conditions that arise in theories constructed …
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Plasma flow and acceleration in the magnetic mirror and nozzle geometries
… {\it {\it VSim}}, where a trapping condition for particles was derived, and the mirror effect was confirmed using test particles. Simulations of ion injection into the nozzle reveal transonic acceleration and density gradients across three energy injection scenarios. Notably, the acceleration …
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Turbulent interactions with normal shocks and their effects on aluminum particle burn time
… been proposed to decrease the burn time of fuel particles due to various mechanisms such as enhanced mixing, entropy production, and transport. In order to demonstrate this e ffect, burn time measurements were obtained for laminar and turbulent conditions at similar test conditions. The amount of …
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Effects of Surface Roughness on the Indoor Particle Deposition Rate Constant
… the deposition rate constants of size-classified particles on typical indoor surface materials as affected by the degree of surface roughness. The experiments were conducted in a small-scale acrylic chamber. The particle size range was from 0.723 to 5.048 £gm with 28 size bins. The air change …
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Monitoring of atmospheric polycyclic aromatic hydrocarbons through optimization of analytical techniques
… assembly. Efficient transmission of sample particles through the PDMS trap is of paramount importance otherwise gas phase SVOC concentrations would be over-estimated and particle phase SVOC concentrations would be underestimated if SVOCs were associated with these particles. In this light, …