Abstract: A stream computing application may be configured to manage the flow of tuples through a section of an operator graph. A window may be generated over one or more stream operators. The window may include breakpoint thresholds that set the maximum flow of tuples within the window. The stream operators within the window may be monitored to determine the flow of tuples occurring within the window using tuple flow counts. The tuple flow counts may be compared to the breakpoint thresholds to determine whether a breakpoint condition has occurred. If a breakpoint condition has occurred, a tuple flow change may be implemented to reduce the flow of tuples within the window.

Abstract: An air register can control airflow direction and intensity. The air register includes an attachment mechanism that is configured to attach to a surface. The air register further includes a plurality of diffuser discs attached to the attachment mechanism and configured so that they may be manually moved from a closed configuration to an open configuration. The diffuser discs include a plurality of apertures that allow air to flow therethrough. In the closed configuration, the diffuser discs are arranged to cover the apertures so that air cannot flow therethrough. In the open configuration, the plurality of diffuser discs are spaced apart to allow air to flow through the apertures. Further, the diffuser discs can be tilted to control airflow direction.

Abstract: An air register can control airflow direction and intensity. The air register includes an attachment mechanism that is configured to attach to a surface. The air register further includes a plurality of diffuser discs attached to the attachment mechanism and configured so that they may be manually moved from a closed configuration to an open configuration. The diffuser discs include a plurality of apertures that allow air to flow therethrough. In the closed configuration, the diffuser discs are arranged to cover the apertures so that air cannot flow therethrough. In the open configuration, the plurality of diffuser discs are spaced apart to allow air to flow through the apertures. Further, the diffuser discs can be tilted to control airflow direction.