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The Hodkin-Huxley Model Applied to Low Frequency Repetetive Firing Nerves

Membranpotentialen hos en cell härledes som en funktion av membranens selektiva permeabilitet och koncentrationsgradienter över membranen. Hodkin-Huxleys nervmodell introduceras och med hjälp av digital simulering visas att den inte kan beskriva en lågfrekvent fyrande nerv. Enkla moditiferingar med bibehållen tolkning av ekvationerna ger en mer realistisk modell. Den modifierade modellen analysera

Konstruktion av en enkel flygplanssimulator

A simple flight simulator has been built up, using an analog computer to simulate the aircraft dynamics. The dynamics model used, does not represent any particular aircraft. It is nevertheless representative of a large group of conventional aircraft. Simulations clearly show an increased ease in handling the flight simulator, if the pilot has flying experience. This indicates a similarity between

Simulering av styrsystem för tankfartyg

The main purpose of this investigation was to compare, by simulations, the ability of an adaptive regulator and a PID-regulator to keep a ship on desired course with small rudder deflections. Manual steering in confined waters of the simulated ship was also performed. Recordings of delivery tests from real ships were compared to simulations. The non-linear mathematical model of the ship, which was

Duala regulatorer

Our task has been to compare the ability of three different regulators to control some single-input single-output systems with unknown parameters. The regulators were a minimal variance regulator, the Self-TUning REgulator STURE and an active suboptimally dual regulator. No simulations with the minimal variance regulator are shown since it turned out that it performs as STURE on systems with const

Ett interaktivt programpaket för simulering av självinställande regulatorer

This MS thesis report provides documentation of results and experience obtained during the spring 1974. The main purpose is to show the construction of an interactive program package, which is used for simulations of some special types of adaptive controllers, called self-tuning regulators. According to the experience at the division, the program package is command driven. A part of the report pre