A system is provided for supporting algae growth with adsorbed carbon dioxide. In the system a channel such as a raceway is provided and holds bicarbonate solution. As algae grows in the solution, it is converted into carbonate solution. Therefore, the system provides a high surface area liquid gas contact medium fo...

A system and method for producing biofuel from pollutant-fed algae are disclosed. Specifically, the system includes a scrubber with a chamber for receiving a pollutant-contaminated fluid stream. Further, a scrubber solution is received in the chamber for scrubbing the pollutant-contaminated fluid stream. Also, the s...

A system and method for using a pulse flow to circulate algae in an algae cultivation apparatus are provided. In order to counteract the negative effects of biofouling on algae cultivation equipment a pulse flow is created to periodically move through an algae cultivation apparatus. The pulse flow will dislodge alga...

A method and system are provided for supporting the growth of algae cells. In the method, an inoculum of algae cells are grown in a closed bioreactor. Thereafter, the inoculum of algae cells is passed into an open system. Specifically, the inoculum is passed into an expanding plug flow reactor (EPFR) having an incre...

A raceway pond for circulating microalgae in a fluid medium includes a plurality of interconnected channels. Each channel is straight and has a structured gradient, due to tilt or terracing, that moves the fluid medium along the raceway. In operation the concentration of microalgae in the fluid medium is maintained ...

The present embodiments providing methods systems and apprartuses of protecting a surface during laser machining. In some embodiments a method of protecting a surface during laser machining comprises: directing a fluid 938 into a cavity 318 of an object 320 being laser machined where the fluid does not have laser ab...

Systems structures devices and fabrication processes for ceramic matrix composites suitable for use in a nuclear reactor environment and other applications requiring materials that can withstand high temperatures and/or highly corrosive environments are disclosed. In one aspect a ceramic composite structure is provi...

Some embodiments provided rotor assemblies comprising: a rotor core barrel comprising a wall extending and at least two compression bridges each formed in the wall proximate one of the lateral ends and separated by a distance; an array of a plurality of magnets positioned on and spaced along the wall between the com...

An energy efficient and lighter-than-air high altitude platform (HAP) is disclosed that allows for sustained station keeping at high altitudes of about 50000-80000 feet for prolonged periods of time. The HAP includes an aerodynamically streamlined body that may have the topology of a torus. The body may be inflated ...

A battery system may include multiple battery cells grouped into modules. Each battery module may have a diffuser plate to direct the hot gases and molten material that are ejected during cell failure. The gas and material may be directed away from the nearest neighboring cells in the event of a single cell thermal ...

A multi-level high-speed adjustable speed drive has a plurality of modular multilevel, 3-phase inverter bridges, wherein the multilevel, 3-phase inverter bridges operate with fundamental frequency, f, wherein the multilevel, 3-phase inverter bridges include at least three levels, wherein the multilevel, 3-phase inve...

This patent document relates to systems, structures, devices, and fabrication processes for ceramic matrix composites suitable for use in a nuclear reactor environment and other applications requiring materials that can withstand high temperatures and/or highly corrosive environments. In one exemplary aspect, a meth...

The present disclosure describes autonomous flight safety systems (AFSSs) that incorporate an autonomous flight termination unit (AFTU) enabling AFSS monitoring for various termination conditions that are used to activate a flight termination system (e.g., in the event a termination condition is detected). Such term...

This patent document relates to systems, structures, devices, and fabrication processes of joining and sealing a ceramic structure and an end plug applications requiring materials that can withstand high temperatures and/or highly corrosive environments. The method (800, 900) comprises forming a joint of a cerami...