Abstract: A selected value of a binary variable may be selected based on one or more operational classifications corresponding to a client. The selected value may be either a first value indicating that the client is not bot-operated or a second value indicating that the client is bot-operated. A token may be generated having cryptographically signed information indicating the selected value of the binary variable and first client information associated with the client. The token and a first request related to a first computing service may be received from the client. A validity determination for the token may be performed based at least in part on the selected value of the binary variable and the first client information. The validity determination may be that the token is valid or that the token is invalid. An action responsive to the first request may be performed based on the validity determination.

Abstract: A treatment system, including a conveyor bed configured to transport a plurality of products; a brushing device located along the conveyor bed and having one or more brushes that include a first antimicrobial compound; a surface treatment device including a lamp configured to emit light of a peak wavelength directed toward a portion of the conveyor bed; and a coating device configured to deliver a coating mixture onto the plurality of products on the conveyor bed.

Abstract: The disclosed technology provides for determining infection in food items using image data of the food items under ultra-violet (UV) light. A method includes performing object detection on the image data to identify a bounding box around each of the food items in the image data, determining, for each food item, an infection presence metric by applying a model to the bounding box, the model being trained using image training data of other food items under UV light, the image training data being annotated based on previous identifications of a first portion of the other food items having infection features and a second portion having healthy quality features, and determining, based on a determination that the infection presence metric for each of the food items indicates presence of an infection, an infection coverage metric for the food item.

Abstract: A power tool including a housing with a first housing portion and a second housing portion, the first housing portion and the second housing portion collectively defining a head housing portion. The power tool also includes a motor supported within the head housing portion and including an output shaft, a gear case completely enclosed by the head housing portion, a gear assembly engaged with the output shaft and supported within the gear case, and a drive assembly driven by the gear assembly and supported within the head housing portion.

Abstract: Methods for selecting a microbe for co-formulation with a carrier are provided. In some examples, the methods include identifying a microbe that comprises one or more dipicolinic acid (DPA) synthase genes, a microbe that expresses one or more DPA synthase proteins, and/or a microbe that produces DPA; and selecting the microbe for co-formulation with a carrier. The methods optionally include co-formulating the selected microbe with the carrier. In some examples, the methods include detecting one or more DPA synthase genes or one or more DpaA and/or DpaB proteins in a microbe. In other examples, the methods include detecting DPA in a microbe or medium containing a microbe, for example, utilizing a fluorescence assay. Microbial compositions including one or more microbes that comprise one or more DPA synthase genes, express one or more DPA synthase proteins and/or produce DPA are also provided.

Abstract: A produce treatment method to mitigate latent infections, such as fungal infections, and to delay ripening in produce is described. The produce treatment method includes providing an antimicrobial agent to an enclosure comprising a plurality of produce items, and contacting the plurality of produce items with the antimicrobial agent, wherein the antimicrobial agent is in gaseous form and is selected to deactivate latent microbes in the plurality of produce items.

Abstract: A power tool includes a housing, a motor, a first user input device, a second user input device, a controller, and a circuit board. The motor is disposed at least partially within the housing. The first input device is partially disposed within the housing and is configured to move along a first axis. The second input device is also partially disposed within the housing and is configured to move along a second axis orthogonal to the first axis. The controller is configured to control an operational characteristic of the motor. The circuit board is connected to the controller. The circuit board includes a first sensor and a second sensor on a first side of the circuit board. The first sensor is configured to sense a plurality of distinct positions of the first user input device. The second sensor is configured to sense a displacement along the second axis.

Abstract: Techniques for providing a computer-implemented authentication integrity challenge (AIC) service are described.

Abstract: Some embodiments include an apparatus having a conductive pad, a first supply node, a second supply node, and a driver. The driver includes first transistors coupled between the first supply node and a number of nodes, and second transistors coupled between the second node and the number of nodes. The driver also includes circuit paths coupled between the conductive pad and respective nodes of the number of nodes. At least one of the circuit paths includes parallel-connected resistors. At least two of the circuit paths include a single resistor.

Abstract: A power tool may include a compartment in its housing and a first printed circuit board (PCB) located in the housing and electrically coupled to a first connector. An insertable wireless communication device may include a second electronic processor and an antenna that are each mounted to a second PCB. The insertable wireless communication device may be configured to be received in the compartment and may include a second connector configured to electrically and physically couple to the first connector. The insertable wireless communication device may be configured to wirelessly communicate with an external device. When the insertable wireless communication device is inserted into the compartment, a first conductive layer of the first PCB may be configured to be electrically coupled to the antenna via the first connector and the second connector such that the first conductive layer of the first PCB serves as a ground plane of the antenna.

Abstract: A power tool includes a switch moveable between a first position enabling activation of a motor and a second position disabling the motor. The power tool includes a trigger movably coupled to a housing of the power tool between an OFF position and an ON position. The switch moves from the second position to the first position in response to the trigger moving from the OFF position to the ON position. The power tool includes a trigger lock-off pivotably coupled to the housing between a lock position and an unlock position. The trigger lock-off is engageable with the trigger to inhibit movement of the trigger from the OFF position to the ON position when the trigger lock-off is in the lock position. The trigger lock-off allows movement of the trigger from the OFF position to the ON position when the trigger lock-off is in the unlock position.

Abstract: A power tool may include a compartment in its housing and a first printed circuit board (PCB) located in the housing and electrically coupled to a first connector. An insertable wireless communication device may include a second electronic processor and an antenna that are each mounted to a second PCB. The insertable wireless communication device may be configured to be received in the compartment and may include a second connector configured to electrically and physically couple to the first connector. The insertable wireless communication device may be configured to wirelessly communicate with an external device. When the insertable wireless communication device is inserted into the compartment, a first conductive layer of the first PCB may be configured to be electrically coupled to the antenna via the first connector and the second connector such that the first conductive layer of the first PCB serves as a ground plane of the antenna.

Abstract: A method and apparatus are disclosed for determining status of a canister of a topical negative pressure (TNP) system. The method includes the steps of monitoring pressure provided by a pump element of the TNP system, determining at least one characteristic associated with the monitored pressure and determining status of at least one parameter associated with a canister of the TNP system responsive to the determined characteristics.

Abstract: A power tool includes a switch moveable between a first position enabling activation of a motor and a second position disabling the motor. The power tool includes a trigger movably coupled to a housing of the power tool between an OFF position and an ON position. The switch moves from the second position to the first position in response to the trigger moving from the OFF position to the ON position. The power tool includes a trigger lock-off pivotably coupled to the housing between a lock position and an unlock position. The trigger lock-off is engageable with the trigger to inhibit movement of the trigger from the OFF position to the ON position when the trigger lock-off is in the lock position. The trigger lock-off allows movement of the trigger from the OFF position to the ON position when the trigger lock-off is in the unlock position.

Abstract: A method for handoff includes: scanning an indirect token displayed on a guest device, where a guest has previously registered a payment instrument with a server, and associated the payment instrument with a plurality of indirect tokens, and the server has stored a payment token that associates the plurality of indirect tokens with the payment instrument in a database record along with a notification identifier; transmitting the ephemeral token to the server; simultaneously displaying details for a transaction, where the server has accessed the notification identifier to transmit a push notification to the guest device, and where the guest device is executing a proprietary application that allows for simultaneously displaying details for the transaction; and receiving notification from the server that the transaction is complete, where transaction completion data was entered via the guest device and transmitted to the server.

Abstract: A method of switching between groups of battery packs for supplying power to a power tool includes connecting a first group of battery packs and a second group of battery packs to a battery pack interface, discharging the first group to supply power to the power tool, and determining, using an electronic controller, a first condition of the first group. The method also includes discharging the second group to supply power to the power tool based on the first condition, determining, via the electronic controller, a second condition of the second group, determining, via the electronic controller, whether the first group has reached end of discharge, and discharging, in response to determining that the first group has not reached end of discharge, the first group based on the second condition.

Abstract: A lidar sensor assembly includes a housing having a window. A light source is disposed within the housing and configured to generate light which is directed through the window. A detector array is disposed within the housing and configured to detect light generated by the light source and reflected off at least one object. A controller is in communication with the light source to control operation of the light source. A strain gauge is in communication with the controller and includes a conductive element disposed on the window. The controller is configured to deactivate the light source in response to the strain gauge indicating damage to said window.

Abstract: Methods and apparatuses for detecting full waste canister and/or fluid flow path blockage conditions are disclosed. Also disclosed are methods and apparatuses for controlling a pump. In some embodiments, flow of fluid can be restricted in a portion of the fluid flow path. A controller can be configured to compare a difference in pressure values upstream and downstream of a fluid flow restrictor to a pressure difference threshold, and determine based on the comparison whether to activate an alarm indicating the full waste canister condition or the fluid flow path blockage condition. The controller can be additionally or alternatively configured to determine a fluid flow using a flow meter, open a selectable valve in response to a comparison of the fluid flow with a fluid flow threshold, determine fluid flow after opening the valve, and determine based on the fluid flow after opening the valve whether to activate the alarm.

Abstract: Methods and apparatuses for detecting full waste canister and/or fluid flow path blockage conditions are disclosed. Also disclosed are methods and apparatuses for controlling a pump. In some embodiments, flow of fluid can be restricted in a portion of the fluid flow path. A controller can be configured to compare a difference in pressure values upstream and downstream of a fluid flow restrictor to a pressure difference threshold, and determine based on the comparison whether to activate an alarm indicating the full waste canister condition or the fluid flow path blockage condition. The controller can be additionally or alternatively configured to determine a fluid flow using a flow meter, open a selectable valve in response to a comparison of the fluid flow with a fluid flow threshold, determine fluid flow after opening the valve, and determine based on the fluid flow after opening the valve whether to activate the alarm.

Abstract: A treatment system, including a conveyor bed configured to transport a plurality of products; a brushing device located along the conveyor bed and having one or more brushes that include a first antimicrobial compound; a surface treatment device including a lamp configured to emit light of a peak wavelength directed toward a portion of the conveyor bed; and a coating device configured to deliver a coating mixture onto the plurality of products on the conveyor bed.