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Showing 1 to 11 of 11 for “"Coulomb forces"”.
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A Study of Dynamics and Stability of Two-Craft Coulomb Tether Formations
… linearized dynamics and stability of a two-craft Coulomb tether formation are investigated. With a Coulomb tether the relative distance between two satellites is controlled using electrostatic Coulomb forces. A charge feedback law is introduced to stabilize the relative distance between the …
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Sensor Craft Control Using Drone Craft with Coulomb Propulsion System
The Coulomb propulsion system has no exhaust plume impingement problem with neighboring spacecraft and does not contaminate their sensors because it requires essentially no propellant. It is suitable to close formation control on the order of dozens of meters. The Coulomb forces are internal forces …
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Three-dimensional simulation of coherent inverse Compton scattering
… to existing simulation routines to incorporate Coulomb forces among particles and effects related to the phase of emitted radiation. This thesis develops a numerical routine for calculating the radiation scattered by electrons counter-propagating with a linearly-polarized, Gaussian laser pulse. …
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Human robotic swarm interaction using an artificial physics approach
… artificial physics framework calculates virtual forces that are summed and translated into velocity commands. The virtual forces are modeled after real physical forces such as gravitational and Coulomb, forces but are not restricted to them, for example, the force magnitude may not be …
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Alternating Current Electroosmotic Micropumping Using A Square Spiral Microelectrode Array
… ions driven along microelectrode surfaces by coulomb forces produced by tangential electric fields. These ions, when driven, induce a net fluid motion due to viscous drag forces. Three submerged microelectrode wires were deposited on a substrate using microfabrication techniques such that a …
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Analytical and Numerical Analysis of Static Coulomb Formations
… proximity flying on the order of 10-100 meters, Coulomb thrusting presents a promising alternative to other methods of propulsion. This clean and fuel-efficient propulsion method is being investigated for use in formation flying and virtual structures. In the latter application, the individual …
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Fully differential cross sections for four-body scattering processes
… involved in the collision interact through the Coulomb force, which is known exactly. However, for Coulomb forces, the solution of the Schrödinger equation can only be obtained analytically for two mutually interacting particles. As a result, when more than two particles are involved, theory …
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Dynamics and Equilibria of N Point Charges on a 2D Ellipse or a 3D Ellipsoid
… to the surface due to the sum of all Coulomb forces it feels from the other charges. Deriving the proper equations of motion requires using a projection operator to project the total force on each point charge onto the tangent plane of the surface. The position vectors then evolve and …
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Dislocation related defects in silicon and gallium nitride.
… rates are not affected by the long range Coulomb forces due to neighbouring states. This suggests that certain emission rates contained in the broad DLTS peaks may be associated with point defects which are not in the vicinity of dislocations.In comparison to silicon, the deep level …
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A moment-preserving single-event Monte Carlo model of electron and positron energy-loss straggling
… impractical because of long-range Coulomb forces resulting in highly peaked cross sections about small energy-losses and extremely small collision mean free paths. The resulting transport process is dominated by very frequent small energy transfer collisions but a significant …
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Towards Mechanical Reinforcement in Polymer Layered Silicates Nanocomposites of the Second Generation
… produced a ‘shear-labile’ material with reduced Coulomb forces between the layers. Applying shear forces generated in a stirred media mill led to exfoliation of the tactoids with minimal breakage and consequently larger aspect ratio. This process was optimized by investigating the main parameters …