Abstract: A fiber-based radiopaque tissue marker for radiographic marking of tissue is provided. The marker is a sterile, single-patient-use polymeric fiber with a radiopaque material and a dye. The marker is radiopaque using standard radiographs such as x-rays and mammography. The marker can also be visualized by low-dose CT scans.

Abstract: A vehicle control system and method include one or more processors that determine that a vehicle has or will have insufficient energy to power a propulsion system of the vehicle under a first set of operational settings to move the vehicle from a first location to a designated second location that is outside of an unpowered segment of a route along which the vehicle moves. Responsive to determining that the vehicle has or will have insufficient energy, the one or more processors change one or more of a throttle setting or a brake setting of the vehicle to operate the vehicle under a second set of operational settings while the vehicle moves within a powered segment of the route.

Abstract: A fiber-based radiopaque tissue marker for radiographic marking of tissue is provided. The marker is a sterile, single-patient-use polymeric fiber with a radiopaque material and a dye. The marker is radiopaque using standard radiographs such as x-rays and mammography. The marker can also be visualized by low-dose CT scans.

Abstract: A system and method include a control unit configured to detect a presence of a vehicle within a route area based on sensor signals output by an observer device that monitors the route area. The control unit is configured to determine a distance of the vehicle from the observer device and to determine a vehicle location of the vehicle based on the distance and a predetermined location of the observer device. The system and method include a communication device configured to communicate the vehicle location to at least one of the vehicle or a remote control device that is off-board the vehicle prior to the vehicle starting to move along a route occupied by the vehicle.

Abstract: In a general aspect, a quantum logic gate is performed in a quantum computing system. In some cases, a pair of qubits are defined in a quantum processor; the pair of qubits can include a first qubit defined by a first qubit device in the quantum processor and a second qubit defined by a tunable qubit device in the quantum processor. A quantum logic gate can be applied to the pair of qubits by communicating a control signal to a control line coupled to the tunable qubit device. The control signal can be configured to modulate a transition frequency of the tunable qubit device at a modulation frequency, and the modulation frequency can be determined based on a transition frequency of the first qubit device.

Abstract: The subject matter of this specification can be embodied in, among other things, a position sensor system that includes a sensor housing defining a first cavity having a first face, a fluid effector including an actuator housing having an inner surface defining a second cavity, and a moveable body having a second face and configured for reciprocal movement within the second cavity, an acoustic transmitter system configured to emit a first emitted acoustic waveform toward the first face, and emit a second emitted acoustic waveform toward the second face, and an acoustic receiver system configured to detect a first reflected acoustic waveform based on a first reflection of the first emitted acoustic waveform based on the first face, and detect a second reflected acoustic waveform based on a second reflection of the second emitted acoustic waveform based on the second face.

Abstract: A gamified challenge is presented to a user communicating with a website when the user is suspected of being a bot. The gamified challenge consists of a dynamic sequence of animated geometric objects displayed in an order that the user has to interact with within an allotted amount of time. The complexity of the gamified challenge increases when the challenge is failed and when features extracted from the user session indicate a high level of suspicion that the gamified challenge is performed by a non-human user.

Abstract: There is disclosed in one example a mechanical assembly, including: a parent part including a parent part lug; a bushing to pass through the lug, the bushing comprising a central inner diameter, and respective left and right relief zones having a second inner diameter different from the central inner diameter; and a through-pin to pass through the bushing.

Abstract: A vaporizer cartridge includes: 1) a body including a storage compartment configured to hold a vaporizable material, the body having a first end and a second end opposite the first end, the body having a mouthpiece positioned at the first end and the second end being configured for insertion into a receptacle of the vaporizer device, 2) a heating chamber including a heating element configured to vaporize the vaporizable material, 3) a vapor tube extending between the heating element and the mouthpiece, 4) a seal insertable at the second end within the storage compartment of the body, the seal configured to retain the vaporizable material within the storage compartment and including a well for retaining the heating element and interior surfaces inclined from a distal end of the seal toward the well for funneling the flow of the vaporizable material within the storage compartment towards the well, and 5) a cap insertable at the second end for retaining the seal within the storage compartment.

Abstract: A system and a method may include one or more sensors disposed onboard a vehicle that may sense one or more characteristics of the vehicle. The system may include one or more processors configured to determining an identification of a switch on a route along which a vehicle moves using one or more sensors onboard the vehicle. A location of the switch is identified with the one or more sensors. A state of the switch is determined with the one or more sensors. The identification of the switch, location of the switch, and the state of the switch are communicated with an off-board database.

Abstract: Provided is a combined solar power generation and agricultural material dispersion system having at least one system module comprising a solar power generation panel having a solar energy collection surface disposed opposite a base surface; a barrier panel having a first surface disposed opposite to a second surface; at least two coupling elements extending between and coupled to the base surface of the solar power generation panel and the first surface of the barrier panel, the coupling elements specifically configured to form a cavity between the solar power generation panel and the barrier panel to enable an at least one electrical cable to be disposed within the cavity; and at least one liquid conduit coupled to the second surface of barrier panel and extending in a direction between said first and second edges of the solar power generation panel, the at least one liquid conduit specifically adapted for conveying agricultural dispersion material, wherein said barrier panel provides a waterproof barrier be

Abstract: A load control system controls an electrical load provided in a space and comprises a load control device and one or more occupancy sensors. The load control device controls the load in response to the wireless control signals received from the occupancy sensors. Each occupancy sensor transmits an occupied control signal to the load control device in response to detecting an occupancy condition in the space and a vacant control signal to the load control device in response to detecting a vacancy condition. The load control device turns on the load in response to receiving the occupied control signal from at least one of the occupancy sensors, and turns off the load in response to receiving vacant control signals from both of the occupancy sensors. The load control device is operable to determine that no wireless control signals have been received from the occupancy sensors for the length of a predetermined timeout period and to subsequently turn off the load.

Abstract: A computer-implemented method is provided that includes obtaining a first secret and a first public key, and obtaining a second secret a second public key. The method may also include authenticating the first public key of the first vehicle based on a first private key associated with the first vehicle, and authenticating the second public key of the second vehicle based on a second private key associated with the second vehicle. The method may also include preventing a man-in-the-middle attack, by securing at least one of a first vehicle-to-central office communication, a central office-to-first vehicle communication, or a first vehicle-to-second vehicle, wherein the first vehicle-to-central office communication and the central office-to-first vehicle communication are authenticated based on a determined private key associated with a respective first vehicle on-board computer, and sending a message, with the central office server, to a vehicle associated with a conditional movement authority.

Abstract: A mechanism for folding a rotor blade that is rotatably coupled to a blade cuff about a blade-fold axis between an extended position and a folded position. The mechanism includes a swash plate configured to translate relative to a mast, a pitch link rotatably coupled to the swash plate, a pitch horn rotatably coupled to the pitch link, a crank coupled to the pitch horn, and a link rotatably coupled to the crank and rotatably coupled to the rotor blade. The pitch horn and the crank being configured to commonly rotate relative to the blade cuff about a crank axis in response to translation of the swash plate, wherein the crank axis passes through the blade cuff.

Abstract: Embodiments are directed to a blade lock comprising a fold lock adapted to prevent folding of a rotor blade in a fold-lock position and to allow folding of the rotor blade in a pitch-lock position. The blade lock further comprises a pitch lock adapted to allow pitch movement of a rotor blade in a fold-lock position and to prevent pitch movement of the rotor blade in the pitch-lock position. A spring-loaded link pivotally connects both the fold lock and the pitch lock and is adapted to provide passive, overcenter locking in the fold-lock position. An actuator is coupled to the pitch lock and is adapted to move the pitch lock and the fold lock between the fold-lock and pitch-lock positions.

Abstract: In a general aspect, a quantum processor has a modular architecture. In some aspects, a modular quantum processor includes first and second quantum processor chips and a cap structure. The first quantum processor chip is supported on a substrate layer and includes a first plurality of qubit devices. The second quantum processor chip is supported on the substrate layer and includes a second plurality of qubit devices. The cap structure is supported on the first and second quantum processor chips and includes a coupler device that provides coupling between at least one of the first plurality of qubit devices with at least one of the second plurality of qubit devices. In some instances, the coupler device is an active coupler device that is configured to selectively couple at least one of the first plurality of qubit devices with at least one of the second plurality of qubit devices.

Abstract: Embodiments are directed to a double Hooke's joint gimbal in a rotor system. An upper Hooke's joint has four arms extending radially outward to define first and second axes, and a lower Hooke's joint has four arms extending radially outward to define third and fourth axes. A pair of connectors couple the upper Hooke's joint and the lower Hooke's joint. A first set of bearings are positioned between arms on the upper and lower Hooke's joints and the connectors. The first set of bearings comprise an elastomer, such as elastomeric journal bearings. The upper Hooke's joint is coupled to a yoke and rotor blades by a driver assembly that allows rotor blade flapping. The lower Hooke's joint is coupled to and driven by a mast. A spherical bearing allows the upper Hooke's joint to move laterally along the mast.

Abstract: Embodiments are directed to a rotor hub assembly comprising a yoke configured to attach rotor blades thereto, a single Hooke's joint configured to attach to, and transmit forces between, a mast and the yoke, and a spherical bearing coupled between the yoke and the mast. Two pillow blocks couple the single Hooke's joint to the yoke. An adapter sleeve is attached to the pillow blocks and is positioned to surround the spherical bearing. The adapter sleeve extends between the single Hooke's joint and the mast. A hub lock extension is attached to the yoke. The hub lock extension is configured to receive a hub lock that prevents gimballing of the yoke when engaged.

Abstract: A load control system controls an electrical load provided in a space and comprises a load control device and one or more occupancy sensors. The load control device controls the load in response to the wireless control signals received from the occupancy sensors. Each occupancy sensor transmits an occupied control signal to the load control device in response to detecting an occupancy condition in the space and a vacant control signal to the load control device in response to detecting a vacancy condition. The load control device turns on the load in response to receiving the occupied control signal from at least one of the occupancy sensors, and turns off the load in response to receiving vacant control signals from both of the occupancy sensors. The load control device is operable to determine that no wireless control signals have been received from the occupancy sensors for the length of a predetermined timeout period and to subsequently turn off the load.

Abstract: A system and method for determining the location of a vehicle when GNSS signals are not available use triangulation between one or two radio transmitters and, respectively, two or one radio receivers mounted on the vehicle. The distance between each radio transmitter and/or each radio receiver can be determined according a phase difference between received radio signals. The radio signals can have the geographical location of the radio transmitter included therein. Utilizing the demodulated geographical location of each radio transmitter and the distance between the radio transmitter and each radio receiver, triangulation can be used to determine the geographical location of the vehicle.