Abstract: The present disclosure relates to compounds of Formula I: and pharmaceutically acceptable salts thereof, pharmaceutical compositions thereof, useful in the treatment of treating viral infections, for example, coronaviridae infections.

Abstract: A variety of methods and arrangements are described for managing recharging of cylinders of an internal combustion engine during skip fire operation of the engine. In one method, a maximum allowed deactivation time for a cylinder is determined and the cylinder is recharged before the maximum allowed deactivation time is exceeded.

Abstract: A UV curable inkjet ink containing covert or overt ultraviolet or infrared reactive material. The ultraviolet or infrared reactive materials are processed in acrylate monomer or combination of acrylate monomer and acrylate oligomer media, along with photoinitiators and surfactants to produce an inkjet ink for printing on non-porous substrates such as plastic, glass, ceramic or metal with high adhesion, scratch and chemical resistance and providing a security feature responsive to ultraviolet or infrared radiation.

Abstract: This document describes improvements in range and reliability for wireless mesh networks implementing IEEE 802.11 networking technologies. Reducing the number of spatial streams, N, to a lower value at middle and far distance ranges using an optimized rate control algorithm, preemptively trades off a lower throughput limit for a higher link budget. This higher link budget provides longer range and higher RF link reliability by using an N×N spatial diversity of MIMO RF channels for maximizing link budget instead of network throughput.

Abstract: A structure constructed using a blow-molding process comprising a tabletop, a lip, a pair of blow points, and a continuous tack-off. The tabletop includes an upper surface, a lower surface, and a hollow interior portion disposed between the upper and lower surfaces. The lip extends downwardly relative to the lower surface. The lip includes an outer and an inner surface. The blow points are configured to receive a blow pin. The blow points include a first portion connected to the lower surface, a second portion connected to the inner surface, and a hollow interior portion in fluid communication with the hollow interior portion. The continuous tack-off is disposed between the tabletop and the lip and extends between the blow points. The continuous tack-off prevents fluid flow between the tabletop and the lip along the section of the lip.

Abstract: A method for obtaining information encoded on an electrochemical test strip is provided. The test strip has two electrodes disposed within a sample space and the information is encoded on the test strip prior to introduction of liquid sample. The method includes the step of introducing sample to the sample space so that the sample is in contact with the two electrodes within the sample space. In another step a value is determined that is representative of the double layer capacitance of the test strip and/or the equivalent capacitance of the test strip. The determined value is then translated into information reflecting a characteristic of the test strip prior to introduction of sample.

Abstract: A cable comprising a covering having two or more different sheath layers, with the covering providing superior chemical and weathering resistance, and excellent surface feel. In a preferred embodiment, the outermost sheath layer of the covering is a thermoplastic elastomer essentially free of a flame retardant material, yet the covering achieves desirable flame retardant performance due to the presence of an inner sheath layer comprising a thermoplastic elastomer and a flame retardant, preferably halogen-free flame retardant. The outermost sheath layer also exhibits sought-after surface qualities. Methods for producing the coverings and flame retardant cables are disclosed.

Abstract: A device (100) includes a flow channel (115) having a first end (120) to receive fluid flow (122) and a second end (125) to exhaust fluid flow (127), the flow channel (115) having a flow channel opening (135). A piston (130) is disposed within the flow channel (115), the piston (130) having a piston passage (140) to allow airflow through the piston (130). A spring (132) is coupled to the piston (130) and coupled to the flow channel (115). The spring (132) is positioned to allow the piston (130) to move responsive to fluid flow velocity in the flow channel (115), wherein the piston (130) moves to modulate fluid flow through the flow channel opening (135).

Abstract: A system for sensing particulate matter receives a first plurality of electronic signals from a photodetector over a period of time, the first plurality of electronic signals associated with a first plurality of particles, wherein each of the first plurality of electronic signals has a respective amplitude, sorts the first plurality of electronic signals into a plurality of amplitude levels, determines a respective quantity of signals associated with each amplitude level, determine an average summation of the first plurality of electronic signals, performs a calibration using the average summation, receives a second plurality of electronic signals from the photodetector over a period of time subsequent to the calibration, the second plurality of electronic signals associated with a second plurality of particles, and determines a mass concentration of the second plurality of particles based on the second plurality of electronic signals.

Abstract: A system (100) for sensing particulate matter includes a computing device (110) having a processor (114) and a memory (112) storing instructions which, when executed by the processor (114), cause the processor (114) to: receive a first plurality of electronic signals from a photodetector (108) over a particular period of time, the first plurality of electronic signals associated with a first plurality of particles, wherein each of the first plurality of signals has a respective amplitude (218), sort the first plurality of signals into a plurality of amplitude levels (220), determine a respective quantity of signals associated with each amplitude level (222), determine an average summation of the first plurality of signals (224), perform a calibration using the average summation (226), receive a second plurality of electronic signals from the photodetector (108) over a period of time subsequent to the calibration, the second plurality of electronic signals associated with a second plurality of particles (228),

Abstract: System (100) for calibrating particulate matter sensors includes a chamber (102) including a plurality of particulate matter sensors (104-1,104-2,104-3,104-N), a fan (110), a particulate matter source (108), an air cleaner (112), and a reference particulate matter sensor (106), a computing device (114) having a processor (118) and a memory (116) storing instructions which, when executed by the processor (118), cause the processor (118) to activate the particulate matter source (108) and the fan (110) until the reference concentration reaches a threshold, activate the air cleaner (112) responsive to the threshold being reached until the reference concentration reaches a calibration point, receive a respective determined mass concentration from each of the plurality of particulate matter sensors (104-1,104-2,104-3,104-N) at the calibration point, and calibrate each of the plurality of particulate matter sensors (104-1,104-2,104-3,104-N) based, at least in part, on a respective relationship between the reference

Abstract: A method for obtaining information encoded on an electrochemical test strip is provided. The test strip has two electrodes disposed within a sample space and the information is encoded on the test strip prior to introduction of liquid sample. The method includes the step of introducing sample to the sample space so that the sample is in contact with the two electrodes within the sample space. In another step a value is determined that is representative of the double layer capacitance of the test strip and/or the equivalent capacitance of the test strip. The determined value is then translated into information reflecting a characteristic of the test strip prior to introduction of sample.

Abstract: A method for joining a flexible tube to a connector having a female fitting that allows relatively facile connection and desirable retention force in a short amount of time. Tube assemblies having a tube bonded to the female fitting of the connector with a joining agent composition including an evaporable liquid hydrocarbon are disclosed.

Abstract: Embodiments relate to systems and methods for providing airflow within a particulate matter sensor. A particulate matter sensor may comprise an air duct, a light source configured to pass light through the air duct, a extender connected to the light source configured to dissipate thermal energy generated by the light source, and to generate a updraft of airflow into the air duct, a photodetector located in the air duct, and a computing device coupled to the photodetector. The computing device has a processor and a memory storing instructions which, when executed by the processor, determines a mass concentration of particles in the air duct based on an output of the photodetector.

Abstract: System (100) for calibrating particulate matter sensors includes a chamber (102) including a plurality of particulate matter sensors (104-1,104-2,104-3,104-N), a fan (110), a particulate matter source (108), an air cleaner (112), and a reference particulate matter sensor (106), a computing device (114) having a processor (118) and a memory (116) storing instructions which, when executed by the processor (118), cause the processor (118) to activate the particulate matter source (108) and the fan (110) until the reference concentration reaches a threshold, activate the air cleaner (112) responsive to the threshold being reached until the reference concentration reaches a calibration point, receive a respective determined mass concentration from each of the plurality of particulate matter sensors (104-1,104-2,104-3,104-N) at the calibration point, and calibrate each of the plurality of particulate matter sensors (104-1,104-2,104-3,104-N) based, at least in part, on a respective relationship between the reference

Abstract: A method for obtaining information encoded on an electrochemical test strip is provided. The test strip has two electrodes disposed within a sample space and the information is encoded on the test strip prior to introduction of liquid sample. The method includes the step of introducing sample to the sample space so that the sample is in contact with the two electrodes within the sample space. In another step a value is determined that is representative of the double layer capacitance of the test strip and/or the equivalent capacitance of the test strip. The determined value is then translated into information reflecting a characteristic of the test strip prior to introduction of sample.

Abstract: Thermoplastic elastomer compositions, in particular derived from one or more styrenic block copolymers wherein at least one styrenic block copolymer comprises a controlled distribution copolymer block including a conjugated diene and a mono alkenyl arene, a plurality of biorenewable materials, preferably a softener and one or more synergistic additives such as a polar polymer; a synergistic block copolymer such as a relatively high molecular weight styrenic block copolymer; and/or filler. Numerous desirable articles can be formed from the compositions. Processes for preparing the compositions and articles are disclosed.

Abstract: A particulate matter (PM) sensor. The sensor comprises a mass separation fluid tunnel body defining a fluid inflow channel, a first fluid channel branch opening off of the inflow channel and having a first outlet, a second fluid channel branch opening off of the inflow channel and having a second outlet, and a fluid port between the first fluid channel branch and the second fluid channel branch, a fan located downstream of the first outlet and the second outlet, a photodetector located in the first fluid channel branch, and a computing device coupled to the photodetector having a processor and a memory storing instructions which, when executed by the processor, determines a mass concentration of particles in the first fluid channel branch based on an output of the photodetector.

Abstract: Systems, methods, and devices for sensing dust are described herein. One system includes a controller (450) for utilizing a dust sensor (456) comprising a memory (454) and a processor (452) configured to execute executable instructions stored in the memory (454) to sample a plurality of low pulse occupancies of a particle measurement system at a predetermined interval, wherein the plurality of low pulse occupancies produce a number of spikes. The controller (450) can reduce the number of spikes by applying a recursive moving average to the plurality of low pulse occupancies. The controller (450) can display, on a user interface, an air level condition based on the plurality of low pulse occupancies and the recursive moving average.

Abstract: Embodiments relate to systems and methods for providing airflow within a particulate matter sensor. A particulate matter sensor may comprise an air duct, a light source configured to pass light through the air duct, a extender connected to the light source configured to dissipate thermal energy generated by the light source, and to generate a updraft of airflow into the air duct, a photodetector located in the air duct, and a computing device coupled to the photodetector. The computing device has a processor and a memory storing instructions which, when executed by the processor, determines a mass concentration of particles in the air duct based on an output of the photodetector.