Abstract: A method is disclosed that includes obtaining a seismic data set and a seismic wave propagation velocity model and approximating the seismic wave propagation velocity model as a plurality of layers each bounded by a first and second bounding depth. For each of the plurality of layers, the method includes: simulation of the propagation of a seismic wave through the layer using a two-way seismic wave propagation simulator; forming an over-determined system of linear equations relating at least one mono-frequency component of the seismic wave at the first depth to one mono-frequency component at the second depth; and determining a plurality of one-way seismic wave propagation operators by inverting the over-determined system of linear equations. The method further includes processing the seismic data set using the one-way seismic wave propagation. A system and a non-transitory computer readable medium for implementing the method are also disclosed.

Abstract: A method is disclosed that includes obtaining a seismic data set and a seismic wave propagation velocity model and approximating the seismic wave propagation velocity model as a plurality of layers each bounded by a first and second bounding depth. For each of the plurality of layers, the method includes: simulation of the propagation of a seismic wave through the layer using a two-way seismic wave propagation simulator; forming an over-determined system of linear equations relating at least one mono-frequency component of the seismic wave at the first depth to one mono-frequency component at the second depth; and determining a plurality of one-way seismic wave propagation operators by inverting the over-determined system of linear equations. The method further includes processing the seismic data set using the one-way seismic wave propagation. A system and a non-transitory computer readable medium for implementing the method are also disclosed.

Abstract: A food product cutting system can include a food product carrier for carrying food product circumferentially around an axis of rotation, where the food product carrier includes food cutters each having a knife and a corresponding pusher. Each knife is for receiving and engaging with food product, and each pusher is slidably coupled with a knife and movable for pushing food product out of engagement with the food cutter. The food product cutting system can also include a track oriented generally circularly with respect to the food product carrier. The track can be arranged at varying radial distances from the axis of rotation and coupled with followers. Each follower can be connected to a corresponding pusher. In operation, food product moved into the knife of a food cutter and carried around the axis of rotation is incrementally pushed out of engagement with the food cutter by the corresponding pusher.

Abstract: A food product cutting system can include a food product carrier for carrying food product circumferentially around an axis of rotation, where the food product carrier includes food cutters each having a knife and a corresponding pusher. Each knife is for receiving and engaging with food product, and each pusher is slidably coupled with a knife and movable for pushing food product out of engagement with the food cutter. The food product cutting system can also include a track oriented generally circularly with respect to the food product carrier. The track can be arranged at varying radial distances from the axis of rotation and coupled with followers. Each follower can be connected to a corresponding pusher. In operation, food product moved into the knife of a food cutter and carried around the axis of rotation is incrementally pushed out of engagement with the food cutter by the corresponding pusher.