Abstract: A portable elliptical exercise apparatus where movement of the right pedal or left pedal defines an ellipse having an ellipse width and ellipse height, where the ellipse height can be incrementally varied according to the pedal surface location of a left foot or right foot on a corresponding left pedal or right pedal.

Abstract: An energy recovery ventilation unit includes an energy recovery ventilation core and a dehumidification system comprising an evaporation unit and a condensing unit. The energy recovery ventilation core receives a first and second airflow and discharges the first and second airflow after the first and second airflow experience heat and mass transfer. The evaporation unit generates a first output airflow comprising a lower relative humidity than the first airflow and directs the first output airflow into a building. The condensing unit generates a second output airflow at a higher temperature than the second airflow and discharges the second output airflow to an unconditioned space.

Abstract: A portable blower fan assembly that includes a housing that forms a pair of air tunnels. The pair of air tunnels are configured to provide a first airflow path across a surface in a downward direction. The portable blower fan assembly further includes a pair of fan assemblies. Each fan assembly is positioned within one of the air tunnels with a downward angle. The portable blower fan assembly further includes a power supply that is configured to provide electrical power to the first motor and the second motor.

Abstract: An energy recovery ventilation unit includes an energy recovery ventilation core, a dehumidification system comprising an evaporation unit and a condensing unit, a first set of dampers, and a second set of dampers. In a first mode of operation, the first set of dampers is in a first position configured to inhibit the flow of a first airflow from a first panel inlet, and the second set of dampers is in a first position configured to inhibit the flow of a second airflow from a second panel inlet. In a second mode of operation, at least one of the first set of dampers and the second set of dampers is actuated to a second position wherein at least one of the first airflow and the second airflow flows to any one of the energy recovery ventilation core, the evaporation unit, and the condensing unit.

Abstract: A traveling-wave surface acoustic wave transducer includes a superconducting wire arranged in a meander configuration to create a meander of superconducting wire, and a piezoelectric crystal that has an induced electrical field in response to piezoelectric action from surface acoustic waves and/or from an input electrical signal traveling through the meander of superconducting wire.

Abstract: A portable blower fan assembly that includes a housing that forms a pair of air tunnels. The pair of air tunnels are configured to provide a first airflow path across a surface in a downward direction. The portable blower fan assembly further includes a pair of fan assemblies. Each fan assembly is positioned within one of the air tunnels with a downward angle. The portable blower fan assembly further includes a power supply that is configured to provide electrical power to the first motor and the second motor.

Abstract: A prosthetic foot includes a foot portion and a switching adapter. The switching adapter includes a first member coupled to the foot portion, a second member, a third member interposed between the first member and the second member, and a locking mechanism. The third member has a first side wall and a second side wall larger in length than the first side wall. The third member is configured to rotate relative to the first member and the second member towards a first position, thereby placing the prosthetic device in a walking mode. The third member is further configured to rotate relative to the first member and the second member towards a second position, thereby placing the prosthetic device in a running mode. The locking mechanism is configured to rotate with the third member in response to rotation of the third member.

Abstract: An energy recovery ventilation unit includes an energy recovery ventilation core and a dehumidification system comprising an evaporation unit and a condensing unit. The energy recovery ventilation core receives a first and second airflow and discharges the first and second airflow after the first and second airflow experience heat and mass transfer. The evaporation unit generates a first output airflow comprising a lower relative humidity than the first airflow and directs the first output airflow into a building. The condensing unit generates a second output airflow at a higher temperature than the second airflow and discharges the second output airflow to an unconditioned space.

Abstract: An energy recovery ventilation unit includes an energy recovery ventilation core, a dehumidification system comprising an evaporation unit and a condensing unit, a first set of dampers, and a second set of dampers. In a first mode of operation, the first set of dampers is in a first position configured to inhibit the flow of a first airflow from a first panel inlet, and the second set of dampers is in a first position configured to inhibit the flow of a second airflow from a second panel inlet. In a second mode of operation, at least one of the first set of dampers and the second set of dampers is actuated to a second position wherein at least one of the first airflow and the second airflow flows to any one of the energy recovery ventilation core, the evaporation unit, and the condensing unit.

Abstract: A portable elliptical exercise apparatus where movement of the right pedal or left pedal defines an ellipse having an ellipse width and ellipse height, where the ellipse height can be incrementally varied according to the pedal surface location of a left foot or right foot on a corresponding left pedal or right pedal.

Abstract: Particles offering multiple doses of an active agent to a subject via a single administration of the active agent to the subject are provided. The particles comprise multiple layers, including two dosing layers each having the active agent and an intervening layer that separates the two dosing layers, and provide a first dose of the active agent from the dosing layer covering the intervening layer upon exposure to an aqueous environment after the particles are administered to the subject, and later a second dose of the active agent from the dosing layer covered by the intervening layer after the intervening layer degrades in the body of the subject. Methods for preparing the particles are also provided. Methods for treating or preventing a disease or disorder in a subject in need thereof with two or more doses of an active agent via a single administration to the subject are further provided.

Abstract: It may be determined when at least one boost achievement condition is satisfied for temporarily boosting visibility of a video streaming channel within one or more interfaces of a video streaming service. The boosting of the visibility of the video streaming channel may be initiated based on satisfaction of the at least one boost achievement condition. It may be determined when at least one boost reward condition is satisfied. The boosting of the visibility of the video streaming channel may be terminated based on satisfaction of the at least one boost reward condition. The at least one boost achievement condition and the at least one boost reward condition may differ for different video streaming channels and may be determined based at least in part on viewership of the different video streaming channels.

Abstract: A portable elliptical exercise apparatus where movement of the right pedal or left pedal defines an ellipse having an ellipse width and ellipse height, where the ellipse height can be incrementally varied according to the pedal surface location of a left foot or right foot on a corresponding left pedal or right pedal.

Abstract: A protective sleeve is disclosed herein consisting of a rectangular upper and lower panel with three edges of the panels permanently sealed together and at least one shorter edge unsealed to allow for full insertion and extraction by one person a swimming pool cover hold-down weight water tube and allows for airtight or non-airtight sealing of the unsealed end.

Abstract: A portable blower fan assembly that includes a housing that forms a pair of air tunnels. The pair of air tunnels are configured to provide a first airflow path across a surface in a downward direction. The portable blower fan assembly further includes a pair of fan assemblies. Each fan assembly is positioned within one of the air tunnels with a downward angle. The portable blower fan assembly further includes a power supply that is configured to provide electrical power to the first motor and the second motor.

Abstract: A prosthetic foot includes a foot portion and a switching adapter. The switching adapter includes a first member coupled to the foot portion, a second member, a third member interposed between the first member and the second member, and a locking mechanism. The third member has a first side wall and a second side wall larger in length than the first side wall. The third member is configured to rotate relative to the first member and the second member towards a first position, thereby placing the prosthetic device in a walking mode. The third member is further configured to rotate relative to the first member and the second member towards a second position, thereby placing the prosthetic device in a running mode. The locking mechanism is configured to rotate with the third member in response to rotation of the third member.