Abstract: A marine vessel power generation and propulsion system including a control system. The system includes a plurality of generator sets, each generator set including an engine configured to drive an electrical generator and wherein each generator set is configured to supply electrical power to an electrical bus. The control system includes a controller configured to switch the power generation system between a plurality of operating modes, wherein in each mode of operation the controller adjusts each generator set to dynamically optimize the performance of the power generation system. In each mode of operation the controller is configured to prioritize a different predetermined characteristic when optimizing the performance of the power generation system.

Abstract: An HVAC diverter valve including a diverter valve body. The diverter valve body includes an inlet, a first outlet, and a second outlet. The HVAC diverter valve further includes a flow constrictor assembly, and at least one motor adapted to adjust the flow constrictor assembly to divert air entering the inlet to the first and second outlet and maintain a substantially constant backpressure in front of the valve during air diversion.

Abstract: An HVAC system including a first diverter valve configured to divert, in varying amounts, an airflow entering the valve out two different outlets, in a manner that does not create a substantial increase in backpressure due to the diversion or otherwise substantially restrict the general flow of air in the HVAC system. The system further includes a first sensor assembly configured to sense a first environmental condition that includes at least one of temperature and a phenomenon indicative of the makeup of room air, a control unit, and a user interface unit, wherein the control unit is in communication with the diverter valve and the first sensor assembly.

Abstract: In a method and computer-implemented system of modular instruction a body of knowledge is divided into cognitive constructs, with instructional materials and post-instruction assessments being associated with each of the cognitive constructs and comprising a learning packet. The instructional material associated with each learning packet is presented to a student, followed by the post-instruction assessment associated with each learning packet. A result of the post-instruction assessment is compared to a pre-defined standard for that learning packet to determine whether the instructional material associated with another learning packet should be presented to the student, or if the instructional material associated with the current learning packet should be presented again to the student. The learning packets can be presented in default sequence or they can be reordered and presented in a user-selected sequence, and all or only a portion of the learning packets can be presented to the student.

Abstract: The selective removal of ammonia from waste water is achieved by the use of a ligand exchanger which has been conditioned with a salt of a metal which is capable of forming a complex with ammonia. The ligand exchanger is regenerated by contacting it with low pressure steam.