Abstract: Provided is a method for time distribution in a communication network of a vehicle. The method includes: sending, from a grandmaster to a first slave, a first time stamp taken from a grandmaster clock; generating, at the first slave, a first time tuple including the first time stamp and a second time stamp taken from a first slave clock at the time of receiving the first time stamp; sending, from the first slave to a second slave a third time stamp taken from the first slave clock, a fourth time stamp calculated based on the third time stamp and the first time tuple using a predefined calculation method, and the first time tuple; calculating, at the second slave, a fifth time stamp based on the third time stamp and the first time tuple; and comparing, at the second slave, the fifth time stamp to the fourth time stamp.

Abstract: Provided is a method for monitoring a time distribution via a network switch to be used in a communication network of an automated vehicle. The method includes receiving, a first synchronized time, at a first port of the network switch, receiving, a second synchronized time, at a second port of the network switch, comparing the received first synchronized time to the received second synchronized time, and output a control signal if a result of the comparing is that a difference between the received first synchronized time and the received second synchronized time exceeds a predefined threshold.

Abstract: A bio-derived wearable film includes an acid-hydrolyzed palm stem pith, a starch, a cellulose, a synthetic polymer, a plant hydrogel, glycerin, and a dye, and a method of producing the bio-derived wearable film. The bio-wearable film has a water absorption of 0.00 to 0.16% measured according to ASTM D570; a carbonate content of 100 to 200 ppm; and shows no cracks when tested according to ASTM D5419.

Abstract: A method includes sending, from the master controller to the slave controller, a follow up message in response to a pull of a predefined pin, wherein the follow up message includes a global time of the master controller when the predefined pin was pulled; sending, from the slave controller to the master controller, a validation message in response to the received follow up message, wherein the validation message includes a global time of the slave controller when the pull of the predefined pin is detected by the slave controller; and validating the time synchronization by checking, at the master controller and/or the slave controller, if a difference between the global time of the master controller when the predefined pin was pulled and the global time of the slave controller when the pull of the predefined pin is detected by the slave controller is smaller than a predefined first threshold.

Abstract: A method of making a surgical biothread from natural cellulose fiber is provided. The method includes making nanoscale cellulose using acid hydrolysis and pyrolysis of a mixture of palm tree stems and banana flower bracts; mixing the nanoscale cellulose with a plasticizer to obtain a nanoscale polymer; and casting the nanoscale polymer using a syringe and needle to obtain the biothread.

Abstract: In various examples, confirming or evaluating availability requirements as part of a safety analysis for autonomous and semi-autonomous systems and applications is described herein. For instance, systems and methods are disclosed that may add availability requirements to one or more safety analysis techniques, such as failure mode and effects analysis (FMEA), critical path analysis (CPA), and/or any other safety analysis technique. In some examples, an availability requirement may indicate whether a failure mode associated with a detected failure will impact an availability of an element and/or one or more measures that may be taken to avoid impacting the availability of the element. Systems and methods may then analyze a machine using these updated safety analysis techniques to detect failure modes in a system, causes of the failure modes, and effects of the failure modes, as well as determine whether these failure modes will impact the availability of the system.

Abstract: Methods, systems, and apparatuses are provided for sequence monitoring of multiple threads being executed at least partly in parallel on an electronic control unit of an automated vehicle. A first timestamp generated at a first predefined time during execution of a first thread to be monitored is provided to a first monitoring thread of the multiple threads. A second timestamp generated at a second predefined time during execution of a second thread to be monitored is provided to the first monitoring thread. The first monitoring thread checks whether the first timestamp is provided before the second timestamp.

Abstract: Systems, methods, and apparatuses are provided for checking an integrity of data stored in an electronic control unit of a vehicle. A first hash value is determined based on the stored data using a hash function at the electronic control unit triggered by a request of a boot loader of the electronic control unit. A second hash value is determined based on the stored data using the hash function at the electronic control unit triggered by a request of an external computing device connected to the electronic control unit. The integrity of the stored data is checked by comparing the determined first hash value to the determined second hash value.

Abstract: Techniques for anomaly and causality detection are described. An example includes receiving time series data; performing anomaly detection on the received time series data to detect at least one anomaly using an anomaly detection model; detecting a causal relationship between measures, wherein a set of measures are related when a first of the set of measures has a causal influence on a second of the set of measures, wherein a single time series is a metric and a measure is a numerical or categorical quantity a metric describes; and outputting a result of the anomaly and causality relationship detections.

Abstract: A bio-derived wearable film includes an acid-hydrolyzed palm stem pith, a starch, a cellulose, a synthetic polymer, a plant hydrogel, glycerin, and a dye, and a method of producing the bio-derived wearable film. The bio-wearable film has a water absorption of 0.00 to 0.16% measured according to ASTM D570; a carbonate content of 100 to 200 ppm; and shows no cracks when tested according to ASTM D5419.

Abstract: An X-ray-sensitive film includes an acid-hydrolyzed palm mesocarp, a starch, a cellulose, a synthetic polymer, a plant hydrogel, a cyanoacrylate adhesive, glycerin, and an x-ray-sensitive dye. A method of preparing the X-ray-sensitive film includes 32.5 to 45 wt % cellulose based on a total weight of the X-ray-sensitive film, a tensile modulus of 0.75 to 2.5 GPa, a tensile strength of 75 to 125 MPa/kg·m3, a water absorption of 0.00 to 0.16% measured according to ASTM D570, a carbonate content of 100 to 200 ppm, and shows no cracks when tested according to ASTM D5419.

Abstract: Described herein are piperazine bis-urea and bis-thiourea based inhibitor compounds, methods of inhibiting steel corrosion in the presence of corrosive media comprising introducing said compounds into the corrosive media in contact with the steel, and a synthesis of said compounds.

Abstract: A system and method are provided for extracting information regarding a drill site including forming one or more documents having one or more raw comments regarding a well site. Raw data may be extracted from the one or more documents to produce extracted raw data. The extracted raw date may be pre-processed by removing ambiguity, artifacts, and/or formatting errors from the one or more raw comments to produce pre-processed data. Topics data may be extracted from the pre-processed data using a natural language processing (NLP) algorithm to produce extracted topics data. Measurement data may also be extracted from the pre-processed data using the NLP algorithm to produce extracted measurement data. The extracted topics data and the extracted measurement data may be aggregated to form a set of discrete data points, such as calibration points, per comment to produce aggregated data and one more calibration points may be identified from the aggregated data.

Abstract: A bio-derived wearable film includes an acid-hydrolyzed palm stem pith, a starch, a cellulose, a synthetic polymer, a plant hydrogel, glycerin, and a dye, and a method of producing the bio-derived wearable film. The bio-wearable film has a water absorption of 0.00 to 0.16% measured according to ASTM D570; a carbonate content of 100 to 200 ppm; and shows no cracks when tested according to ASTM D5419.

Abstract: An X-ray-sensitive film includes an acid-hydrolyzed palm mesocarp, a starch, a cellulose, a synthetic polymer, a plant hydrogel, a cyanoacrylate adhesive, glycerin, and an x-ray-sensitive dye. A method of preparing the X-ray-sensitive film includes 32.5 to 45 wt % cellulose based on a total weight of the X-ray-sensitive film, a tensile modulus of 0.75 to 2.5 GPa, a tensile strength of 75 to 125 MPa/kg·m3, a water absorption of 0.00 to 0.16% measured according to ASTM D570, a carbonate content of 100 to 200 ppm, and shows no cracks when tested according to ASTM D5419.

Abstract: A downhole communication includes an antenna winding fixed to an inner surface of a collar. A fluid flow flows through a center of the antenna winding. The antenna winding is wound around a chassis in an antenna channel in the chassis. The chassis is attached to the inner surface of the collar with a seal such that fluid does not travel between the fluid flow and an annulus between the antenna winding and the inner surface of the collar. A difference in diameter between an upper seal and a lower seal results in a net force to push the chassis against a shoulder on the collar.

Abstract: Provided is a method for monitoring a time schedule of a first thread running on a control unit of an automated vehicle. The method includes a step of providing, to a second thread, a first timestamp corresponding to a starting time of the first thread, and a step of providing, to the second thread, a second timestamp corresponding to an end time of the first thread. The method further includes a step of computing, by use of the second thread, a difference between the first timestamp and the second timestamp, and a step of comparing, by use of the second thread, the computed difference to a predefined threshold for monitoring the time schedule of the first thread.

Abstract: Provided is a method for validating synchronized local times of at least a first control unit and a second control unit of a vehicle, wherein the method includes receiving, at each one of the at least two control units, a synchronization message including a master time; synchronizing, at each one of the at least two control units, a local time of the respective one of the at least two control units to the received master time; communicating the synchronized local time from the first control unit to the second control unit; and comparing, at the second control unit, the communicated local time of the first control unit to the synchronized local time of the second control unit for validating the synchronized local times of the at least two control units.

Abstract: A method for validating time synchronization in a communication network of an automated vehicle includes sending a time synchronization message from a master clock to two control units of a first communication network, respectively, wherein the time synchronization message includes a master time; synchronizing a local time of the two control units of the first communication network to the received master time, respectively; sending the synchronized local times of the two control units of the first communication network to a central validator of the first communication network, respectively; comparing, at the central validator of the first communication network, the received synchronized local times of the two control units of the first communication network to each other; and, if a difference between the received synchronized local times is larger than a predefined first threshold, outputting an error message from the central validator of the first communication network to the automated vehicle.

Abstract: Execution status of managed time series processing tasks may be tracked. Status of a time series processing task that operations on different portions of a time series may be respectively captured. A request for the status of one of the portions of the time series with respect to the time series processing task may be received. The status may be identified and returned. For failed tasks, a failure reason may be generated by the time series processing system and included in a response with a failure status.