Modeling of super-capacitors | |
| | Charge and discharge super-capacitors, take data, create a dynamical model of a simple capacitor and compare simulations and results. Build electrical circuits using standard capacitors and resistors that can model the diffusion of charge in a super-capacitor. Take data, create a dynamical model and compare simulations and experimental results. | |
Electrical modeling of the blood circulatory system | |
| | The blood circulatory system is an interesting dynamical hydraulic system (see Main Case in Chapter 1). It is customary to represent models of the system in terms of electrical diagrams. Build electrical circuits using standard capacitors, ressistors, diodes, and power supplied to represent the systemic circuit if mammals. In particular, start with a circuit that models the single node windkessel. Use the power supply to mimic the action of the left ventricle. Take data, build a dynamical model and compare simulations and experimental data. Transfer the model to the biological case, and compare simulations to the data obtained from a sheep (see Main Case in Chapter 1). Repeat all these steps with refined models of the aorta (build a pseudo finite-element model as a circuit and in the computer). Try to include veins and the left atrium by making a closed circuit of the systemic circuit (leave out the pulmonary circuit in a first step). | Website by Daniel R. Kerner:
For fluids in the cranium and spinal cord, see: |
Super-capacitor support of batteries in electronic devices | |
| | Modern capacitors of high capacitance can play an important role in electric applications. Unlike their low-capacitance counterparts they can be used in cases requiring high electric currents. Batteries are commonly used to power many of our electronic consumer devices such as digital cameras. However, they are not ideally suited to the task. The motor driving the automatic focus requires high currents which leads to inefficient use of the batteries. Adding a supercapacitor to the supply circuit can make battery life extend 50% beyond the normal case. This is interesting since the capacitor is charged by the battery; all the energy comes from the battery, there is no additional energy available. So how does this system work? | |
