Abstract: Described herein are systems and methods for estimation of vital signs using camera data. In one or more examples of the disclosure, a RGB camera (i.e., a visible spectrum camera) can be used to collect imaging data of one or more subjects. The acquired video can be analyzed to determine the presence of a region of interest (ROI) in the field of view of the video. Using the pixel information of the identified region of interest, the system and methods can estimate both heart rate and respiratory rate of a subject by observing the periodicity of change in color of the pixels in the region of interest. The change in color can be monitored by determining the power spectral density (PSD) of each pixel and monitoring the changes in PSD over time.

Abstract: A representative system for docking a first spacecraft to a second spacecraft can include a fiducial marker carried by the second spacecraft, wherein the fiducial marker includes a metal substrate and a surface treatment forming a computer-readable image on the metal substrate. The computer-readable image can include a pattern of a plurality of blocks (e.g., an ArUCo pattern), in which one or more first blocks of the plurality of blocks includes a first coating having a first emissivity and a first solar radiation absorption coefficient, and one or more second blocks of the plurality of blocks is uncoated or includes a second coating that has a second emissivity and a second solar radiation absorption coefficient. In some embodiments, the first emissivity is less than the second emissivity and the first solar radiation absorption coefficient is greater than the second solar radiation absorption coefficient.

Abstract: An assembly and method for end-to-side connection to anatomical tissue is disclosed. The system and method are particularly useful in coupling a ventricular assist device pump to an aorta. The assembly and method include using a tubular graft member coupled to a connection ring having at least one of a plurality of distally projecting tines extending from a distal aspect of the connection ring, and a stent having a distal flange section configured to abut an abluminal wall surface of the aorta, and an assembly including the tubular graft member and connection ring, for delivering the end-to-side connection.

Abstract: Described herein are systems and methods for estimation of vital signs using camera data. In one or more examples of the disclosure, a RGB camera (i.e., a visible spectrum camera) can be used to collect imaging data of one or more subjects. The acquired video can be analyzed to determine the presence of a region of interest (ROI) in the field of view of the video. Using the pixel information of the identified region of interest, the system and methods can estimate both heart rate and respiratory rate of a subject by observing the periodicity of change in color of the pixels in the region of interest. The change in color can be monitored by determining the power spectral density (PSD) of each pixel and monitoring the changes in PSD over time.

Abstract: In an example, a thermal imaging test article comprises a block configured to be attached to a blackbody on a back side of the block, the block having a variable thickness to represent facial features of a human face, the block including a cutout to allow a thermal imaging device to see the blackbody behind the block through the cutout, and one or more heaters thermally coupled to the block to produce heat to heat the block. The variable thickness of the block and the heat produced by the one or more heaters are selected to simulate thermally the human face on a front side of the block.

Abstract: In an example, a thermal imaging test article comprises a block configured to be attached to a blackbody on a back side of the block, the block having a variable thickness to represent facial features of a human face, the block including a cutout to allow a thermal imaging device to see the blackbody behind the block through the cutout, and one or more heaters thermally coupled to the block to produce heat to heat the block. The variable thickness of the block and the heat produced by the one or more heaters are selected to simulate thermally the human face on a front side of the block.

Abstract: A mechanical interlock for a switch gear switch. The mechanical interlock includes a base and a slider. The slider is moveable relative to the base between a first position and a second position. The mechanical interlock is configured to lock the position of the switch when the slider is in the second position.

Abstract: The present disclosure describes multi-well plates comprising a frame made of a first material having an array of a plurality of holes arranged in a columnar pattern on the top surface and an array of segmented breaking features arranged in a linear columnar pattern which alternates with the columnar pattern of the plurality of holes, and a plurality of tubes/wells made of a second material placed into the plurality of holes, wherein the multi-well plate is manually divisible along the segmented breaking features into one or more columns of multi-well/tube strips. Manually dividing multi-well plate of the disclosure produces multi-well strips or segments that have smooth edges, thereby reducing injuries and glove tear incidences.

Abstract: A mechanical interlock for a switch gear switch. The mechanical interlock includes a base and a slider. The slider is moveable relative to the base between a first position and a second position. The mechanical interlock is configured to lock the position of the switch when the slider is in the second position.

Abstract: This invention relates to a mould tool and method for forming a polypropylene PCR plate comprising a channel, a main body and an overflow area; wherein the channel is configured to facilitate the introduction of molten plastics material into the main body and wherein the main body is configured to facilitate the flow of the said molten plastics into the overflow area once the main body of the mould tool has been filled with the said molten plastics.

Abstract: Circuits for self-powered image sensors are provided. In some embodiments, an image sensor is provided, the image comprising: a plurality of pixels, each of the plurality of pixels comprising: a photodiode having an anode and a cathode connected to a constant voltage level; a first transistor having: a first input connected to the anode of the photodiode; a first output connected to a reset bus; and a first control configured to receive a discharge signal; and a second transistor having: a second input connected to the anode of the photodiode; a second output connected to a pixel output bus; and a second control configured to receive a select signal; and a third transistor having: a third input coupled to each first output via the reset bus; a third output configured to be coupled to an energy storage device; and a third control configured to receive an energy harvest signal.

Abstract: Circuits for self-powered image sensors are provided. In some embodiments, an image sensor is provided, the image comprising: a plurality of pixels, each of the plurality of pixels comprising: a photodiode having an anode and a cathode connected to a constant voltage level; a first transistor having: a first input connected to the anode of the photodiode; a first output connected to a reset bus; and a first control configured to receive a discharge signal; and a second transistor having: a second input connected to the anode of the photodiode; a second output connected to a pixel output bus; and a second control configured to receive a select signal; and a third transistor having: a third input coupled to each first output via the reset bus; a third output configured to be coupled to an energy storage device; and a third control configured to receive an energy harvest signal.

Abstract: Circuits for self-powered image sensors are provided. In some embodiments, an image sensor is provided, the image comprising: a plurality of pixels, each of the plurality of pixels comprising: a photodiode having an anode and a cathode connected to a ground voltage; a first transistor having: a first input connected to the anode of the photodiode; a first output connected to a reset bus; and a first control configured to receive a discharge signal; and a second transistor having: a second input connected to the anode of the photodiode; a second output connected to a pixel output bus; and a second control configured to receive a select signal; and a third transistor having: a third input coupled to each first output via the reset bus; a third output configured to be coupled to an energy storage device; and a third control configured to receive an energy harvest signal.