Abstract: Enzymes and recombinant host cells for the biosynthesis of clinically important prenylated polyketides of the cannabinoid family are provided. Using readily available starting materials, heterologous enzymes (e.g., bacterial CoA-transferases and CoA-ligases) are used to direct cannabinoid biosynthesis in host cells such as recombinant yeast cells.

Abstract: A printed circuit board is provided. The printed circuit board includes a base having a top and a bottom. The top has a first circuit area, a second circuit area and a slotted area disposed between the first circuit area and the second circuit area. The slotted area includes a first row of a plurality of first slots, each first slot of the plurality of first slots has a first length and is separated from an adjacent first slot by a first space. The slotted area includes a second row of a plurality of second slots that is positioned parallel with respect to the first row. Each second slot of the plurality of second slots has a second length that is different than the first length and is separated from an adjacent second slot by a second space. The second space includes a different length than the first space.

Abstract: A printed circuit board is provided. The printed circuit board includes a base having a top and a bottom. The top has a first circuit area, a second circuit area and a slotted area disposed between the first circuit area and the second circuit area. The slotted area includes a first row of a plurality of first slots, each first slot of the plurality of first slots has a first length and is separated from an adjacent first slot by a first space. The slotted area includes a second row of a plurality of second slots that is positioned parallel with respect to the first row. Each second slot of the plurality of second slots has a second length that is different than the first length and is separated from an adjacent second slot by a second space. The second space includes a different length than the first space.

Abstract: Protection of a motor controller from a transient voltage is described. A method for protecting a motor controller from a transient voltage includes providing an electromagnetic interference (EMI) filter having at least a first input terminal, a second input terminal, a first output terminal, and a second output terminal, the EMI filter configured to suppress electromagnetic interference. The method also includes coupling a first voltage clamping device and a second voltage clamping device in series between the first output terminal and the second output terminal. The method also includes coupling a spark gap device to a ground conductor and to a shared node between the first voltage clamping device and the second voltage clamping device.

Abstract: Protection of a motor controller from a transient voltage is described. A method for protecting a motor controller from a transient voltage includes providing an electromagnetic interference (EMI) filter having at least a first input terminal, a second input terminal, a first output terminal, and a second output terminal, the EMI filter configured to suppress electromagnetic interference. The method also includes coupling a first voltage clamping device and a second voltage clamping device in series between the first output terminal and the second output terminal. The method also includes coupling a spark gap device to a ground conductor and to a shared node between the first voltage clamping device and the second voltage clamping device.

Abstract: A drive package for a dynamoelectric machine mounts a printed wire board in cantilever fashion from a wall of a drive package housing. Potting material in the housing provides mechanical support for the printed wire board away from the heat sink. Heat generating components on the first printed wire board have tubes of electrically insulating, thermally conductive material inserted over them and are clamped against the heat sink. The heat sink is mounted directly to the housing and is electrically grounded by the housing.

Abstract: Three-dimensional seismic prospecting is conducted using a less than complete multifold array of seismic sources and receivers which are positioned so that the resulting system of linear static connection equations according to common depth point are continuously coupled.

Abstract: The field locations of seismic shot points are chosen to produce partial multifold data, the static correction equations of which are at least partially coupled. The seismic cross sections resulting therefrom are substantially improved.