Abstract: The present invention relates to a viral vector system derived from Epstein-Barr Virus (EBV), where the transgene is effectively inserted into the EBV major internal repeat region (IR1) without adverse affect on EBV latent or lytic function. The vector of the invention can target and stably transform B-lymphocyte cells, both in culture and in vivo.

Abstract: A multilevel voltage source inverter and related control scheme in which a VSI controller operates in a low frequency mode of operation below a threshold operating frequency to more evenly distribute the duty cycle and thermal loss of the VSI switches. The technique makes use of multiple alternative switching states which achieve the same output voltage.

Abstract: A high power motor drive converter includes: a five level hybrid NPC output power conversion stage including three NPC phase bridges having switches and coupled in a wye configuration through a converter neutral point, each NPC phase bridge receiving power on a respective direct current bus; three isolated split series-connected DC capacitor banks each coupled in parallel to a respective one of the three NPC phase bridges; and a controller for selecting switch positions with active control of neutral voltages. The controller is adapted to select switch positions using feedforward sine-triangle modulation with third harmonic injection, zero sequence injection, and/or discontinuous modulation injection.