Abstract: In a method of facilitating flight operations, a payload is coupled to a spacecraft via a payload interface. The relative alignment of the payload and the spacecraft is dynamically adjusted (e.g., for thrust alignment) while the payload remains coupled to the spacecraft.

Abstract: Provided is an improved method, system, and computer program product to implement simulation for photonic devices. A composite, multi-domain simulation model is disclosed, with connected domain-specific representations that allow the use of the most relevant simulator technology for a given domain. The model has external connection points either expressed as actual ports or virtual ones, embodied by simulator API calls in the model.

Abstract: A projectile designed to be lead-free and have a ballistic coefficient ranging from about 0.13 to about 0.80 or greater for enhanced energy/performance at extended ranges may have an elongated body formed with a jacket including a wall having an end defining an ogive portion and a cavity or recess defined within the jacket and in which a core is received. The projectile can be configured in various calibers and sizes. The projectile core may be formed from a plurality of core sections, and at least one of the plurality of core sections may include tungsten powder and a lead-free binder material pressed together to form a substantially cylindrical shape or compact. One or more of the core sections further can be sintered, and the one or more core sections may be received in an end-to-end relationship within the cavity defined by the jacket to form a stacked, sectional core.

Abstract: A system for three-dimensional printing is disclosed. The system comprises: a rotary tray configured to rotate about a vertical axis; a printing head, each having a plurality of separated nozzles; and a controller configured for controlling the inkjet printing head to dispense, during the rotation, droplets of building material in layers, such as to print a three-dimensional object on the tray.

Abstract: Methods, systems, and devices for wireless communications are described. In some wireless communications systems, a wireless device may buffer uplink communications. However, such approaches may be improved. An access point (AP) may receive, from a station, uplink traffic of a traffic flow for forwarding to a backhaul network via a backhaul link. The AP may monitor a buffer of the AP to determine that a quantity of buffered uplink traffic received from the station exceeds a buffer quota, the buffer quota set for the traffic flow based on a traffic throughput capacity of the backhaul link and a throughput parameter for the traffic flow. The AP may modify, based on the quantity of buffered uplink traffic exceeding the buffer quota, an uplink communication scheme to reduce the quantity of uplink traffic from the station.

Abstract: The media playback system comprises a first playback device with an energy storage having a maximum storage capacity. The media playback system sets a target charge level for the first energy storage to a first maximum charge threshold, wherein the first charge threshold is less than the maximum storage capacity (e.g., 20% of the maximum storage capacity). In response to identifying an event associated with a user, the media playback system adjusts the target charge level for the first energy storage to a second maximum charge threshold, wherein the second charge threshold is based on a duration of the first event. Subsequently, the media playback system receives power from a first power source to charge the first energy storage to the second maximum charge threshold. After the first event ends, the media playback system adjusts the target charge level for the first energy storage to the first maximum charge threshold.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transmitter may detect at least one distance between the transmitter and a receiver. The transmitter may transmit, to the receiver, information using a selected band of a wide band or a narrow band, where the selected band is based at least in part on the at least one distance. Similarly, in some aspects, a receiver may detect at least one distance between the receiver and a transmitter. The receiver may receive, from the transmitter, information using a selected band of a wide band or a narrow band, where the selected band is based at least in part on the at least one distance. Numerous other aspects are described.

Abstract: A terminal for an electrical device having a feature to receive an auxiliary connection, the terminal including a cavity including an opening for receiving a first wire, and a terminal device positioned at least partially in the cavity, the terminal device including a distal portion extending external to the cavity, wherein the distal portion of the terminal device is configured to receive a connector of a second wire.

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for analyzing management frames for multiple basic service sets (BSSs). In one aspect, a wireless node may obtain a first management frame from a wireless local area network (WLAN) apparatus, the WLAN apparatus operating multiple virtual access points (VAPs) respectively corresponding to multiple BSSs. The wireless node may determine whether the first management frame includes a BSS profile of a BSS associated with the wireless node based, at least in part, on an arrangement of a plurality of BSS profiles within one or more management frames. The wireless node may determine to further process the first management frame based, at least in part, on a determination that the first management frame includes the BSS profile of the BSS associated with the wireless node.

Abstract: This disclosure provides methods, devices and systems for performing a single-sided ranging operation. In some implementations, a first device transmits a first frame to a wireless station (STA), and receives a second frame from the STA responsive to the first frame. The first device obtains information indicating a time period between transmission of the first frame and reception of the second frame by the first device, and obtains information indicating time delays associated with a plurality of second devices, where each of the time delays is between respective receptions of the first frame and the second frame by a respective one of the second devices. The first device obtains a position of the STA based on the time period, the time delays associated with the plurality of second devices, and signal propagation times between the first device and each of the plurality of second devices.

Abstract: An access point (AP) may prioritize the allocation of uplink resources between multiple basic service sets (BSSs). In some aspects, the AP may select one of a plurality of BSSs, may allocate one or more random-access resource units (RUs) to only the selected BSS, and may transmit, for each of the selected BSSs, a respective frame indicating the random-access RUs allocated to that BSS. Wireless devices belonging to the selected BSS may contend for access to the random-access RUs allocated by the frame, and then transmit uplink data using the random-access RUs.

Abstract: Aspects relate to signaling the parameters to be used for a communication schedule such as a target wake time (TWT) schedule. For example, a first wireless communication device (e.g., an access point or a peer station) may determine (e.g., specify or negotiate) the parameters for at least one TWT schedule and transmit a broadcast management frame (e.g., a beacon) that includes these parameters. A second wireless communication device (e.g., station) that receives the broadcast management frame may, based on the received parameters for one TWT schedule or the received parameters for multiple TWT schedules, elect to transmit during a transmission opportunity (TXOP) that is defined to not cross at least one boundary of a period of time indicated by the parameters.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network node may transmit an indication of a media access control (MAC) address associated with an access point to a group of access points included in a network. The network node may receive single-sided round-trip-time (RTT) data associated with a user device associated with the access point, wherein the single-sided RTT data is received from each of the group of access points based at least in part on transmitting the indication of the MAC address to the group of access points. The network node may determine a location of the user device based at least in part on the single-sided RTT data. The network node may transmit an indication of the location of the user device to the access point. Numerous other aspects are described.

Abstract: A representative embodiment of a lighting system includes a carrying bag having a first opening with a control panel cover; a mounting bracket arranged in the carrying bag; a power supply coupled to or arranged on the mounting bracket; a control panel arranged within the first opening and coupled to the mounting bracket; a first flexible light strip; a second flexible light strip; and a power cable coupleable within the carrying bag to the control panel, the first flexible light strip, and the second flexible light strip. The first and second flexible light strips are coupleable to the power cable to receive DC power from the control panel, and may be extended throughout a structure, such as a tent, using a plurality of hangers. In a representative embodiment, the first flexible light strip provides white light and the second flexible light strip provides blackout light.

Abstract: Beverage coolers for storing and cooling bottled beverages. A beverage cooler may include a cooling chamber cooled by a refrigeration system, and openings in the cooling chamber for receiving bottled beverages to be chilled. The openings may have doors and/or seals to minimize heat exchange between the cooling chamber and the environment with or without bottles disposed in the openings. Each of the openings may have a visual indicator, such as a plurality of LEDs, configured to indicate the temperature of the bottle disposed in the opening.

Abstract: An access point (AP) may prioritize the allocation of uplink resources between multiple basic service sets (BSSs). In some aspects, the AP may select one of a plurality of BSSs, may allocate one or more random-access resource units (RUs) to only the selected BSS, and may transmit, for each of the selected BSSs, a respective frame indicating the random-access RUs allocated to that BSS. Wireless devices belonging to the selected BSS may contend for access to the random-access RUs allocated by the frame, and then transmit uplink data using the random-access RUs.

Abstract: A communication system supports communication between an end node (101) of a vehicle (103) and a remote correspondent node (105) via a fixed network (107) which comprises a plurality of wireless access points (109) with a directional antenna arrangement for mm wave radio communication using directional beams. A vehicle (103) comprises wireless modems (111, 113, 701, 703) employing electronically steerable beamforming directional antennas for establishing mm wave radio communication links to the access points (109). At least one first access point (109) is arranged to transmit multipath environment data for an area supported by the access point to the wireless modems (111, 113, 701, 703). A controller (1101) of the vehicle is arranged to set a diversity property for transmissions of data from the wireless modems to the wireless access points in response to the multipath environment data.

Abstract: A representative embodiment of a lighting system includes a carrying bag having a first opening with a control panel cover; a mounting bracket arranged in the carrying bag; a power supply coupled to or arranged on the mounting bracket; a control panel arranged within the first opening and coupled to the mounting bracket; a first flexible light strip; a second flexible light strip; and a power cable coupleable within the carrying bag to the control panel, the first flexible light strip, and the second flexible light strip. The first and second flexible light strips are coupleable to the power cable to receive DC power from the control panel, and may be extended throughout a structure, such as a tent, using a plurality of hangers. In a representative embodiment, the first flexible light strip provides white light and the second flexible light strip provides blackout light.

Abstract: A projectile designed to be lead-free and have a ballistic coefficient ranging from about 0.13 to about 0.80 or greater for enhanced energy/performance at extended ranges may have an elongated body formed with a jacket including a wall having an end defining an ogive portion and a cavity or recess defined within the jacket and in which a core is received. The projectile can be configured in various calibers and sizes. The projectile core may be formed from a plurality of core sections, and at least one of the plurality of core sections may include tungsten powder and a lead-free binder material pressed together to form a substantially cylindrical shape or compact. One or more of the core sections further can be sintered, and the one or more core sections may be received in an end-to-end relationship within the cavity defined by the jacket to form a stacked, sectional core.

Abstract: Beverage coolers for storing and cooling bottled beverages. A beverage cooler may include a cooling chamber cooled by a refrigeration system, and openings in the cooling chamber for receiving bottled beverages to be chilled. The openings may have doors and/or seals to minimize heat exchange between the cooling chamber and the environment with or without bottles disposed in the openings. Each of the openings may have a visual indicator, such as a plurality of LEDs, configured to indicate the temperature of the bottle disposed in the opening.