Abstract: A heat pump water heater can include a refrigerant circuit, an evaporator coil in fluid communication with the refrigerant circuit, a fan configured to move air across the evaporator coil, one or more temperature sensors, a heating element located proximate an air flow path between the fan and the evaporator, and a controller. The controller can be configured to receive temperature data from the one or more temperature sensors and, in response to the temperature data, output instructions for the fan to move air across the heating element to the evaporator coil.

Abstract: A heat pump water heater can include a refrigerant circuit, an evaporator coil in fluid communication with the refrigerant circuit, a fan configured to move air across the evaporator coil, one or more temperature sensors, a heating element located proximate an air flow path between the fan and the evaporator, and a controller. The controller can be configured to receive temperature data from the one or more temperature sensors and, in response to the temperature data, output instructions for the fan to move air across the heating element to the evaporator coil.

Abstract: Techniques for 3D point cloud labeling are described. An example of labeling includes initializing a point-cloud environment according to a configuration; loading of point-cloud data into a memory buffer of a device, wherein the point-cloud data is compatible with a virtual reality (VR) environment and a non-VR environment; drawing of at least the loaded point-cloud data into a point-cloud environment of the device; receiving user input in a task user interface of the device; and in response to the user input, performing an operation to one or more of a bounding box and quality of a label.

Abstract: This disclosure describes a system that models the complexity of image labeling tasks utilizing image data, labeling instructions, and label requirements. A labeling service of a service provider network includes an application that determines a task complexity value based on a data complexity value, a cognitive complexity value, and a product complexity value. The task complexity value is used to predict or estimate needed resources for an image labeling task for labeling image data, e.g., the time and effort needed to label (annotate) the image data. Once the needed resources are estimated, associated costs may also be estimated. The needed resources and associated costs may be provided to a user that submitted the image data, who may then provide an indication with respect to proceeding with the image labeling task.

Abstract: This disclosure describes automatically identifying videos of a video dataset having high-content similarity and grouping the videos together with one or more possible tags for the videos for consideration by annotators. A labeling service of a service provider network receives (i) a dataset of unlabeled videos and (ii) category tags for labeling the videos from a client device associated with a user. A video data modeling engine analyzes the dataset to provide a set of ranked unlabeled videos from the dataset, wherein the set of ranked unlabeled videos are ranked according to confidence scores with respect to at least one tag. Based at least in part on the confidence scores, at least some of the unlabeled videos are labeled with the at least one tag to provide a dataset of labeled videos. The dataset of labeled videos is provided to a database and/or the user.

Abstract: A heat pump water heater can include a refrigerant circuit, an evaporator coil in fluid communication with the refrigerant circuit, a fan configured to move air across the evaporator coil, one or more temperature sensors, a heating element located proximate an air flow path between the fan and the evaporator, and a controller. The controller can be configured to receive temperature data from the one or more temperature sensors and, in response to the temperature data, output instructions for the fan to move air across the heating element to the evaporator coil.

Abstract: A heat pump water heater can include a water tank and a refrigerant circuit that can be in fluid communication with an evaporator coil, a condenser coil, and a compressor. The heat pump water heater can include a fan configured to move air across the evaporator coil, a temperature sensor, and a controller. The controller can be configured to receive temperature data from the temperature sensor and, in response to the temperature data indicating a temperature less than a predetermined temperature threshold, output instructions for the compressor to deactivate and the fan to move air across the evaporator coil.

Abstract: Air recirculation systems for heat pumps are disclosed. The air recirculation systems include a heat pump subsystem and a recirculation subsystem. The recirculation subsystem can include one or more arms that direct cool, dehumidified air flowing from the heat pump subsystems back to air inlets. The recirculation subsystems can transition from open to closed configurations either manually or via motors. The air recirculation systems can include a controller that outputs a control signal to the motors to open or close the recirculation subsystems. The control signals can be based on temperature data, current data, and the like.

Abstract: A heat pump water heater can include a water tank and a refrigerant circuit that can be in fluid communication with an evaporator coil, a condenser coil, and a compressor. The heat pump water heater can include a fan configured to move air across the evaporator coil, a temperature sensor, and a controller. The controller can be configured to receive temperature data from the temperature sensor and, in response to the temperature data indicating a temperature less than a predetermined temperature threshold, output instructions for the compressor to deactivate and the fan to move air across the evaporator coil.

Abstract: Air recirculation systems for heat pumps are disclosed. The air recirculation systems include a heat pump subsystem and a recirculation subsystem. The recirculation subsystem can include one or more arms that direct cool, dehumidified air flowing from the heat pump subsystems back to air inlets. The recirculation subsystems can transition from open to closed configurations either manually or via motors. The air recirculation systems can include a controller that outputs a control signal to the motors to open or close the recirculation subsystems. The control signals can be based on temperature data, current data, and the like.

Abstract: A method may include displaying, via a display screen, a visualization of data within a user interface (UI). The data may include multiple layers of information. The method may include receiving, via the UI, a first user input effective to select portions of the data to be included in the visualization of the data displayed within the UI. The method may include receiving, via the UI, a second user input effective to select one or more subsets of the layers of information to be included in the visualization displayed within the UI. The method may include altering the visualization of the data within the UI based on the first user input and according to the second user input. The visualization of the data may be altered by hiding one or more subsets of the layers of information that are not to be included in the visualization displayed within the UI.

Abstract: A method may include displaying, via a display screen, a visualization of data within a user interface (UI). The data may include multiple layers of information. The method may include receiving, via the UI, a first user input effective to select portions of the data to be included in the visualization of the data displayed within the UI. The method may include receiving, via the UI, a second user input effective to select one or more subsets of the layers of information to be included in the visualization displayed within the UI. The method may include altering the visualization of the data within the UI based on the first user input and according to the second user input. The visualization of the data may be altered by hiding one or more subsets of the layers of information that are not to be included in the visualization displayed within the UI.

Abstract: A method may include displaying, via a display screen, a visualization of data within a user interface (UI). The data may include multiple layers of information. The method may include receiving, via the UI, a first user input effective to select portions of the data to be included in the visualization of the data displayed within the UI. The method may include receiving, via the UI, a second user input effective to select one or more subsets of the layers of information to be included in the visualization displayed within the UI. The method may include altering the visualization of the data within the UI based on the first user input and according to the second user input. The visualization of the data may be altered by hiding one or more subsets of the layers of information that are not to be included in the visualization displayed within the UI.

Abstract: The present invention relates to an improved nitrification inhibitor composition and its use in agricultural applications.

Abstract: The present disclosure relates to an improved nitrification inhibitor composition and its use in agricultural applications.

Abstract: This invention relates to stable liquid formulations of the nitrification inhibitor nitrapyrin comprising polar solvents that are stabilized with small amounts of compounds which help to reduce the tendency of polar solutions of nitrapyrin to corrode metal surfaces. Many of the formulations disclosed herein exhibit useful physical, chemical, and bioactive properties including reduced levels of corrosion when in contact with ferrous metals.

Abstract: This invention relates to stable liquid formulations of the nitrification inhibitor nitrapyrin comprising polar solvents that are stabilized with small amounts of compounds which help to reduce the tendency of polar solutions of nitrapyrin to corrode metal surfaces. Many of the formulations disclosed herein exhibit useful physical, chemical, and bioactive properties including reduced levels of corrosion when in contact with ferrous metals.

Abstract: The present invention relates to an improved nitrification inhibitor composition and its use in agricultural applications.