Abstract: Illustrative embodiments of a light fixture are disclosed that feature a housing and an internal optical module. The optical module includes one or more light emitter assemblies that are rotationally adjustable and a fixed primary heat sink. Each light emitter assembly includes a light emitter member, an intermediate rotatable heat sink, and an optional optic. The primary heat sink within the housing provides thermally conductive surfaces that maintain contact with the intermediate heat sinks throughout their range of rotation with the light emitter members. A synchronization mechanism ensures coordinated rotation of the light emitter assemblies. The fixture may also include a lens that encloses the optical module within the housing and an actuator for adjusting the rotation of the light emitters from outside the housing. The design allows for efficient thermal management and adjustable light beam direction with no change in position of the external housing or the mounting structure.

Abstract: A master manipulator includes a first master manipulator module, a second master manipulator module, and a third master manipulator module which are perpendicular to each other, an output end of the third master manipulator module is connected to an input end of the second master manipulator module; an output end of the second master manipulator module is connected to an input end of the first master manipulator module; the first master manipulator module can be connected to a main controller. The minimally invasive surgery robot master manipulator is simple and compact in structure, and can realize a high-precision surgical operation; moreover, the master manipulator modules are located above a transverse third master arm, thereby reducing the size of each master manipulator in a vertical direction, and effectively avoiding interference between the master manipulator and other components in the vertical direction.

Abstract: A water chiller, a water output adjustment method, and an air conditioning system. The water chiller includes: at least two cooling towers used in parallel, a water pressure balance adjustment circuit, and a main control hoard, where each of the at least two cooling towers includes a water pressure pre-adjustment circuit, the main control board is configured to control the water pressure pre-adjustment circuit to realize real-time water output adjustment of the each of the at least two cooling towers, and control the water pressure balance adjustment circuit to achieve a water output balance adjustment among-multiple cooling towers.

Abstract: Disclosed are various embodiments for optimized sensor deployment and fault detection in the context of agricultural irrigation and similar applications. For instance, a computing device may execute a genetic algorithm (GA) routine to determine an optimal sensor deployment scheme such that a mean-time-to-failure (MTTF) for the system is maximized, thereby improving communication of sensor measurements. Moreover, in various embodiments, a centralized fault detection scheme may be employed and a soil moisture of a field can be determined by statistically inferring soil moistures at locations of faulty nodes using spatial and temporal correlations.

Abstract: A master manipulator includes a first master manipulator module, a second master manipulator module, and a third master manipulator module which are perpendicular to each other, an output end of the third master manipulator module is connected to an input end of the second master manipulator module; an output end of the second master manipulator module is connected to an input end of the first master manipulator module; the first master manipulator module can be connected to a main controller. The minimally invasive surgery robot master manipulator is simple and compact in structure, and can realize a high-precision surgical operation; moreover, the master manipulator modules are located above a transverse third master arm, thereby reducing the size of each master manipulator in a vertical direction, and effectively avoiding interference between the master manipulator and other components in the vertical direction.

Abstract: A lighting fixture configured to expand and collapse, and methods for expanding and collapsing a light fixture are disclosed. Embodiments of the lighting fixture include a lighting fixture with a movable section that collapses into at least one cavity in a base housing for storage and shipment, and extends from the cavity for operation. In the collapsed configuration the lighting fixture fits into a smaller container than when the lighting fixture is in the expanded configuration. In some embodiments a locking member locks the movable section into its extended position and can be retracted by a user by manually disengaging the locking member. Accessories and extenders that can be attached to the lighting fixture can be stored in the one or more cavities into which the movable section is stowed in the collapsed configuration.

Abstract: Disclosed are various embodiments for optimized sensor deployment and fault detection in the context of agricultural irrigation and similar applications. For instance, a computing device may execute a genetic algorithm (GA) routine to determine an optimal sensor deployment scheme such that a mean-time-to-failure (MTTF) for the system is maximized, thereby improving communication of sensor measurements. Moreover, in various embodiments, a centralized fault detection scheme may be employed and a soil moisture of a field can be determined by statistically inferring soil moistures at locations of faulty nodes using spatial and temporal correlations.

Abstract: Disclosed are various embodiments for reinforcement learning-based irrigation control to maintain or increase a crop yield or reduce water use. A computing device may be configured to determine an optimal irrigation schedule for a crop planted in a field by applying reinforcement learning (RL), where, for a given state of a total soil moisture, the computing device performs an action, the action comprising waiting or irrigating crop. An immediate reward may be assigned to a state-action pair, the state-action pair comprising the given state of the total soil moisture and the action performed. The computing device may instruct an irrigation system to apply irrigation to at least one crop in accordance with the optimal irrigation schedule determined, where the optimal irrigation schedule includes an amount of water to be applied at a predetermined time.

Abstract: A water chiller, a water output adjustment method, and an air conditioning system. The water chiller includes: at least two cooling towers used in parallel, a water pressure balance adjustment circuit, and a main control hoard, where each of the at least two cooling towers includes a water pressure pre-adjustment circuit, the main control board is configured to control the water pressure pre-adjustment circuit to realize real-time water output adjustment of the each of the at least two cooling towers, and control the water pressure balance adjustment circuit to achieve a water output balance adjustment among-multiple cooling towers.

Abstract: Disclosed are various embodiments for deep reinforcement learning-based irrigation control to maintain or increase crop yield and/or other desired crop status, and/or reduce water use. One or more computing devices can be configured to determine an amount of water to be applied to at least one crop in at least one of a plurality of irrigation management zones through execution of a deep reinforcement learning routine. Further, the computing devices can determine a start time and an end time to be applied to the at least one of the plurality of irrigation management zones based at least in part on the amount of water determined by the deep reinforcement learning module. Finally, the computing devices can instruct an irrigation system to apply irrigation to the at least one of the plurality of irrigation management zones in accordance with the start time and the end time.

Abstract: An illustrative light fixture provides an emitter housing and a driver housing in a single fixture with an airflow channel defined between the emitter and driver housings. The airflow channel minimizes thermal conduction between the emitter and driver housings, and maximizes thermal convective cooling for at least one of the emitter housing and driver housing. The emitter housing includes vertical fins extending into the airflow chamber. The left and right sides of the emitter and driver housings define top and bottom edges that are respectively coplanar with the top and bottom edges of the vertical fins.

Abstract: A lighting fixture configured to expand and collapse, and methods for expanding and collapsing a light fixture are disclosed. Embodiments of the lighting fixture include a lighting fixture with a movable section that collapses into at least one cavity in a base housing for storage and shipment, and extends from the cavity for operation. In the collapsed configuration the lighting fixture fits into a smaller container than when the lighting fixture is in the expanded configuration. In some embodiments a locking member locks the movable section into its extended position and can be retracted by a user by manually disengaging the locking member. Accessories and extenders that can be attached to the lighting fixture can be stored in the one or more cavities into which the movable section is stowed in the collapsed configuration.

Abstract: Apparatuses and methods for accessing luminaire mounting and/or electrical connection compartments and components are disclosed. Embodiments include a front reflective door pivotally attached to a luminaire housing with a closed position covering an opening to the mounting access compartment and an open position allowing easy user access to the mounting feature(s) in the mounting access compartment. In some embodiments the door forms an exterior surface of the lighting fixture, while in additional embodiments the luminaire's light source is mounted on the luminaire housing and not on the door. In still further embodiments the light source is located externally to the mounting access compartment so that the light source is outside the door when the door is closed. In yet further embodiments the free end of the door is adjacent the light source while the pivoting end of the door is located away from the light source.

Abstract: A lighting fixture configured to expand and collapse, and methods for expanding and collapsing a light fixture are disclosed. Embodiments of the lighting fixture include a lighting fixture with a movable section that collapses into at least one cavity in a base housing for storage and shipment, and extends from the cavity for operation. In the collapsed configuration the lighting fixture fits into a smaller container than when the lighting fixture is in the expanded configuration. In some embodiments a locking member locks the movable section into its extended position and can be retracted by a user by manually disengaging the locking member. Accessories and extenders that can be attached to the lighting fixture can be stored in the one or more cavities into which the movable section is stowed in the collapsed configuration.

Abstract: A lighting fixture configured to expand and collapse, and methods for expanding and collapsing a light fixture are disclosed. Embodiments of the lighting fixture include a lighting fixture with a movable section that collapses into at least one cavity in a base housing for storage and shipment, and extends from the cavity for operation. In the collapsed configuration the lighting fixture fits into a smaller container than when the lighting fixture is in the expanded configuration. In some embodiments a locking member locks the movable section into its extended position and can be retracted by a user by manually disengaging the locking member. Accessories and extenders that can be attached to the lighting fixture can be stored in the one or more cavities into which the movable section is stowed in the collapsed configuration.

Abstract: Disclosed are various embodiments to enhance the security of a circuit design after a global routing of the circuit design and an assignment of wire layers for the circuit design. A tree can be extracted from the circuit design. The tree can include multiple gates and location information for the gates. The tree can be perturbed by moving one or more locations of one or more gates.

Abstract: Disclosed are various embodiments for optimized sensor deployment and fault detection in the context of agricultural irrigation and similar applications. For instance, a computing device may execute a genetic algorithm (GA) routine to determine an optimal sensor deployment scheme such that a mean-time-to-failure (MTTF) for the system is maximized, thereby improving communication of sensor measurements. Moreover, in various embodiments, a centralized fault detection scheme may be employed and a soil moisture of a field can be determined by statistically inferring soil moistures at locations of faulty nodes using spatial and temporal correlations.