The invention relates to a computer-aided simulation tool, in particular to computer-aided simulation methods, for providing assistance in the planning of thermotherapy, and to suitably configured computer equipment. The thermotherapy comprises hyperthermic treatment of a tumour volume within a volume of a human body. The hyperthermic treatment comprises the application of a magnetic field within a treatment volume by means of a magnetic field applicator. In at least one depot volume, thermal energy can be introduced by means of magnetic, paramagnetic and/or superparamagnetic nanoparticles deposited in the body, by power absorption in the applied magnetic field. Field strength values and optionally calculated temperature distributions are provided for assisting the user in the planning of the thermotherapy.

The present system and method for simulating particles and waves is useful for calculations involving nuclear and full spectrum radiation transport, quantum particle transport, plasma transport and charged particle transport. The invention provides a mechanism for creating accurate invariants for embedding in general three-dimensional problems and describes means by which a series of simple single collision interaction finite elements can be extended to formulate a complex multi-collision finite element.

A focused-ultrasound or other procedure for treating a target within a tissue region can be planned iteratively by creating a treatment plan specifying a treatment location pattern and stimuli applied thereto, simulating the treatment, computationally predicting an effect of the simulated treatment, comparing the predicted effect against one or more treatment constraints (such as efficacy and/or safety thresholds), and, if a constraint is violated, repeating the simulation for an adjusted treatment plan.

Radiation treatment planning and administration can include a Monte Carlo computer simulation tool to simulate photo-generated electrons in tissue. In the simulation, electrons that have left tissue voxels and entered air voxels can be evaluated to identify electrons that are circling along a spiraling trajectory in the air voxels. After at least one full spiraling circumference or other specified distance has been traversed using a detailed electron transport model, a simpler linear ballistic motion model can be instituted. This speeds simulation while accurately accounting for spiraling electrons that re-enter tissue voxels.

An approach and system for receiving data from a thermostat in a building, treating the data as representative of a thermal response model or system, and determining a relationship between a rate of building internal temperature change and change in outdoor temperature to provide an indication of how well a building is insulated versus a thermal mass of the building.

A computer-implemented method for simulating flow and acoustic interaction of a fluid with a porous medium includes simulating activity of a fluid in a first volume adjoining a second volume, the activity of the fluid in the first volume being simulated so as to model movement of elements within the first volume and using a first model having a first set of parameters, simulating activity of the fluid in the second volume occupied by the porous medium, the activity in the second volume being simulated so as to model movement of elements within the second volume and using a second model having a second set of parameters, and simulating movement of elements between the first volume and the second volume at an interface between the first volume and the second volume.

A device receives information associated with a physical network, and creates a thermal fluid model, based on the information and with a technical computing environment (TCE), the thermal fluid model including at least a first block, a second block, and a node connecting the first block and the second block. The device calculates a first convection power flux for the first block and a second convection power flux for the second block, and calculates a first conduction power flux for the first block and a second conduction power flux for the second block. The device adds the first convection power flux and the first conduction power flux to determine a first power flux, and adds the second convection power flux and the second conduction power flux to determine a second power flux. The device outputs the first power flux and the second power flux.