Abstract: Methods and apparatus are described for facilitating the extraction of cleaner biometric signals from biometric monitors. A motion reference signal is generated independently from a biometric signal and then the motion reference signal is used to remove motion artifacts from the biometric signal.

Abstract: A method and apparatus for storing a cryogenic material, such as liquid hydrogen is described. The apparatus includes a liquid hydrogen storage container with a structural support system that enables frequent loading and unloading of the structural support system. The structural support system enables loading and unloading without permanent deformation or fatigue of the structural support system. The structural support system includes a plurality of support members which are oriented at an angle tangent to a portion of an inner shell, which forms a cavity holding the cryogenic material. The portion of the inner shell which the support member is tangent to is the portion of the inner shell closest to an end of the support member.

Abstract: A monitoring device configured to be attached to a subject includes a photoplethysmography (PPG) sensor configured to measure physiological information from the subject, and at least one processor configured to process signals from the PPG sensor to determine heart rate and RR-interval (RRi) for the subject, and to determine a heart rate pattern for the subject over a period of time. The at least one processor is configured to change a sampling frequency of the PPG sensor for determining RRi in response to the determined heart rate pattern. The at least one processor is configured to reduce the sampling frequency of the PPG sensor in response to determining a pattern of heart rate below a threshold.

Abstract: Techniques are described for uniquely identifying a quadrant of a symmetrical vehicle, such as a symmetrical autonomous vehicle. The techniques include using service indicator lights to convey information regarding the status and operational mode of the vehicle to an observer and/or service technician. The service indicator lights may uniquely identify quadrants of the vehicle for orienting the vehicle with a representation of the vehicle to guide a technician to a particular location and component of the vehicle located within the identified quadrant.

Abstract: A catheter system includes an elongated tube structure configured for insertion into a luminal space, such as the vasculature, of a body. The catheter is conductive and configured to conduct electrical signals. The catheter includes one or more power and data coupling devices configured to send and receive power and/or data signals, such as from an underlying guidewire disposed within a lumen of the catheter. One or more sensors are coupled to a distal section of the catheter and are electrically connected to the one or more power and data coupling devices.

Abstract: A guidewire system includes an elongated wire configured for insertion into a luminal space, such as the vasculature, of a body. The wire is conductive and configured to conduct electrical signals. One or more sensors are coupled to a distal section of the wire and configured to send and receive the electrical signals via the wire. The wire through which the one or more sensors are coupled is the only wire through which the one or more sensors send and receive the electrical signals.

Abstract: A cryogenic vessel includes an outer vessel at least partially formed from a reinforced concrete. The cryogenic vessel further includes an inner vessel disposed in the outer vessel. The cryogenic vessel further includes an airtight liner disposed between the inner vessel and the outer vessel, wherein the liner is anchored to the outer vessel. The cryogenic vessel further includes a vacuum space disposed between the inner vessel and the liner, wherein an insulation material is disposed in the vacuum space.

Abstract: A monitoring device configured to be attached to a subject includes a photoplethysmography (PPG) sensor configured to measure physiological information from the subject, a blood flow stimulator, and a processor configured to process signals from the PPG sensor to determine a confidence score of the signals. In response to a signal-to-noise level determination, the processor is configured to instruct the blood flow stimulator to increase blood perfusion at a location where the PPG sensor is attached to the subject. The confidence score is an indication of how strongly the signals can be trusted.

Abstract: Solution-processed negative temperature coefficient (NTC) thermistor devices include transition metal dichalcogenide (TMDC) quantum dots. The TMDC quantum dots may be formulated into an ink, and the ink may subsequently be deposited on a substrate and processed to form an NTC thermistor. Solution-processed NTC thermistors may be incorporated into RFID tags or as circuit protectors into electronic circuits.

Abstract: In some implementations, a device may obtain deployment information, associated with a deployment of a first application, indicating first network resources to be associated with the deployment of the first application in a network. The device may obtain network usage information indicating second network resources associated with one or more second applications in the network, where the second network resources are associated with the first network resources in an infrastructure of the network. The device may detect, based on the first network resources, the second network resources, and the infrastructure, that a network resource conflict will occur if the first application is deployed using the first network resources, wherein the network resource conflict is associated with an impact to a performance of at least one application from the one or more second applications. The device may perform an action associated with the deployment of the first application.

Abstract: The present disclosure is directed to devices and methods for synchronizing capturing of spectral images, capturing of thermal images, and capturing of panchromatic images. A thermal imaging device of an aerial vehicle captures a sequence of thermal images. Capturing of spectral images by a spectral imaging device of the aerial vehicle is synchronized with the capturing of the thermal images. Capturing of panchromatic images is synchronized with the capturing of thermal images. Irradiance data indicative of a background temperature is sensed. A digital surface model of an area of interest is generated based on the sequence of spectral images. An emissivity of a target is estimated and a temperature of a pixel of the digital surface model of the target is estimated based on the sequence of thermal images, the irradiance data indicative of the background temperature and the estimated emissivity of the target.

Abstract: A power and data coupling device for medical sensors comprises a first conductive surface integrated into a medical device and configured to couple via an electric field with a second conductive surface. The second conductive surface is translatable with respect to the first conductive surface. Additionally, the first conductive surface is connected to a power source for providing power, through the electric field, to the second conductive surface. The first conductive surface also radiates a time-varying electric field that is configured to convey power to the second conductive surface. Further, the first conductive surface is connected to a pick-up that is configured to receive signals from the second conductive surface.

Abstract: A monitoring device configured to be attached within a portion of an ear of a subject includes an elastomeric arm having opposite first and second end portions. A sensing element is located at the elastomeric arm second end portion and includes at least one energy emitter configured to direct energy at a target region of the ear and at least one detector configured to detect an energy response signal from the target region or a region adjacent the target region. The monitoring device is configured such that the elastomeric arm first end portion engages the ear at a first location within the ear and such that the elastomeric arm resiliently bends such that a surface of the sensing element is urged into contact with the ear at a second location within the ear.

Abstract: The present disclosure is directed to irradiance sensing devices and methods. One such device includes a housing and an optical diffuser coupled to the housing. The housing has an opening that extends into the housing from an outer surface, and the opening has a circular shape at the outer surface of the housing. The optical diffuser has a first region that extends at least partially beyond the outer surface of the housing and a second region housed within the housing. The first region of the optical diffuser has a curved surface, and the optical diffuser includes a cavity extending at least partially into the second region.

Abstract: A recovery hook assembly includes a recovery hook fastened to a vehicle frame by a vertically oriented fastener and a horizontally oriented fastener, which connect the recovery hook to the vehicle at three connection points. When the recovery hook is pulled in the forward direction, the recovery hook remains connected to the vehicle to allow the vehicle to be towed. When the recovery hook is pushed in a rearward direction, the recovery hook moves rearward and can break away from the vehicle, thus maintaining crash performance of the vehicle.

Abstract: A monitoring device configured to be attached to a body of a subject includes a physiological sensor configured to detect and/or measure physiological information from the subject, an activity sensor configured to sense physical activity information from the subject, an actuator configured to adjust stability of the monitoring device relative to the body of the subject, and a processor in communication with the activity sensor and the actuator. The processor is configured to process the physical activity information to detect a change in the physical activity of the subject and to control the at least one actuator to adjust the stability of the monitoring device relative to the body of the subject in response to detecting that a change in the physical activity of the subject has occurred.

Abstract: A guidewire system includes an elongated wire configured for insertion into a luminal space, such as the vasculature, of a body. The wire is conductive and configured to conduct electrical signals. One or more sensors are coupled to a distal section of the wire and configured to send and receive the electrical signals via the wire. The wire through which the one or more sensors are coupled is the only wire through which the one or more sensors send and receive the electrical signals.

Abstract: Implementations of the present disclosure generally relate to an apparatus for large-scale external pressure storage, and more particularly for large-scale storage of liquid hydrogen and other products that require evacuated insulation. In some examples, a plate for a storage apparatus is provided. The plate a body that includes a beveled joint with the body having a nominal thickness at the beveled joint. The beveled joint is configured to be welded to a corresponding beveled joint of an adjacent plate.

Abstract: A monitoring device configured to be attached to a body of a subject includes a physiological sensor configured to detect and/or measure physiological information from the subject, an activity sensor configured to sense physical activity information from the subject, an actuator configured to adjust stability of the monitoring device relative to the body of the subject, and a processor in communication with the activity sensor and the actuator. The processor is configured to process the physical activity information to detect a change in the physical activity of the subject and to control the at least one actuator to adjust the stability of the monitoring device relative to the body of the subject in response to detecting that a change in the physical activity of the subject has occurred.

Abstract: A vehicle includes a control arm having a first branch portion extended from a second branch portion, the first branch portion and the second branch portion being fixed with a frame of the vehicle, and a third branch portion extended from the second branch portion, and coupled with a wheel. The vehicle also includes a first joint fixing the first branch portion to the frame, and a second joint located behind the first joint along the frame in a vehicle longitudinal direction, and fixing the second branch portion to the frame with a first bracket extending along the frame, outward from the second branch portion in a vehicle lateral direction. The first bracket is fixed to the frame at a first bracket weakened portion, and configured such that the second branch portion separates the first bracket weakened portion from the frame while the first joint remains fixed to the frame.