Abstract: A method of determining the position of a vehicle includes generating a vehicle-based point cloud of objects in proximity to the vehicle, referenced to a vehicle-based coordinate system. The method also includes receiving an infrastructure-based point cloud, referenced to a global coordinate system, of objects detected by a camera mounted at a fixed location external to the vehicle, and registering the vehicle-based point cloud with the infrastructure-based point cloud to determine the vehicle position in the global coordinate system.

Abstract: A composition for producing hydrogen and degrading polymers. The composition comprises a semiconductor and individual metal atoms/clusters attached to the semiconductor. A method for producing hydrogen. The method comprises pretreating a polymer, contacting polymer with composition for producing hydrogen exposing the composition for producing hydrogen to radiation, degrading the polymer, and releasing hydrogen. The radiation may be solar radiation. Pretreatment of the polymer may comprise contact with an acid, a base, and/or ethanol. The pretreatment may occur in the absence of light.

Abstract: Provided is a manufacturing process for a coiled graphene heat dissipation film material, comprising the following preparation steps: S1: preparing a graphene oxide dispersion using a graphene oxide cake material; S2: homogenizing and defoaming; S3: coating a substrate with the graphene oxide slurry via a coating machine, subjecting the substrate to stripping and slitting to give a pretreated graphene film, and coiling the film to form a tightly coiled pretreated graphene film material; S4: subjecting the tightly coiled pretreated graphene film material to loosening treatment in a reverse coiling mechanism to give a loosely coiled pretreated graphene film material; S5: subjecting the loosely coiled pretreated graphene film material to low-temperature treatment, carbonization treatment, and graphitization treatment to prepare a coiled graphene foam film material; and S6: subjecting the coiled graphene foam film material to single-layer rolling or multi-layer rolling to prepare the coiled graphene heat dissipat

Abstract: A system for detection and reporting of data signal interference includes a plurality of vehicles. Each vehicle includes a global navigation satellite system (GNSS) receiver receiving a GNSS signal, a cellular modem configured for sending and receiving data over a wireless communication network, and a computerized detection and reporting controller. The controller includes programming to monitor the GNSS signal, analyze the GNSS signal to identify a presence of radio frequency (RF) interference, and generate a report of an RF interference event to a remote server device based upon the presence of the interference. The system further includes the server device including programming to monitor the report of the interference event from each of the vehicles, identify a threshold RF interference event based upon the report of the RF interference event from each of the plurality of vehicles, and command a remedial action based upon the threshold RF interference event.

Abstract: Systems and techniques are provided for detecting occurrence of traffic scenes and characterizing performance of autonomous vehicles (AVs) in relation to said traffic scenes. An example method includes receiving a collection of data compiled by one or more AVs while navigating a real-world environment, wherein the one or more AVs are configured to execute a first version of AV software; identifying, based on at least one traffic scene selector and the collection of data, a plurality of traffic scene datasets each corresponding to an instance in which the one or more AVs encountered a traffic scene; and determining, based on the plurality of traffic scene datasets, one or more metrics for characterizing an operation of the one or more AVs in relation to the traffic scene.

Abstract: Systems and techniques are provided for school bus detection and response by a vehicle such as an autonomous vehicle. An example method can include receiving sensor data collected by one or more sensors of a vehicle while the vehicle is in a scene. The sensor data can provide information about a school bus in the scene. The example method can include, based on the sensor data, determining a status of one or more lights of the school bus to determine a state of the school bus; determining that the one or more lights indicate whether the school bus is loading or unloading passengers; determining a behavior of one or more vehicles in the scene with respect to the school bus based on one or more parameters; and determining a behavior of the vehicle with respect to the school bus and the one or more vehicles.

Abstract: The present disclosure provides the use of 4-(Phenylethynyl) benzoic acid in preparing a plant growth regulator. 4-(Phenylethynyl) benzoic acid has a formula as C15H10O2, a molecular weight of 222.2390. The optimum concentration of 4-(Phenylethynyl) benzoic acid in the plant growth regulator is in a range of 10 ?M to 200 ?M. The plant growth regulator further contains a pesticidally acceptable carrier. The present disclosure further provides the use of 4-(Phenylethynyl) benzoic acid in regulating plant growth. In the use of 4-(Phenylethynyl) benzoic acid in preparing a plant growth regulator of the present disclosure, 4-(Phenylethynyl) benzoic acid has the ABA-like effects, and is more stable, easily available, cheaper, and environmentally friendly. Therefore, the present disclosure is suitable for large-scale popularization.

Abstract: A system for detection and reporting of data signal interference includes a plurality of vehicles. Each vehicle includes a global navigation satellite system (GNSS) receiver receiving a GNSS signal, a cellular modem configured for sending and receiving data over a wireless communication network, and a computerized detection and reporting controller. The controller includes programming to monitor the GNSS signal, analyze the GNSS signal to identify a presence of radio frequency (RF) interference, and generate a report of an RF interference event to a remote server device based upon the presence of the interference. The system further includes the server device including programming to monitor the report of the interference event from each of the vehicles, identify a threshold RF interference event based upon the report of the RF interference event from each of the plurality of vehicles, and command a remedial action based upon the threshold RF interference event.

Abstract: A method of determining the position of a vehicle includes generating a vehicle-based point cloud of objects in proximity to the vehicle, referenced to a vehicle-based coordinate system. The method also includes receiving an infrastructure-based point cloud, referenced to a global coordinate system, of objects detected by a camera mounted at a fixed location external to the vehicle, and registering the vehicle-based point cloud with the infrastructure-based point cloud to determine the vehicle position in the global coordinate system.

Abstract: A convenient self-locking blood pressure cuff facilitating one-handed use by a user taking his own blood pressure includes a cuff belt, a casing assembly, and a self-locking structure. The self-locking structure is received in the casing assembly. The self-locking structure includes a core shaft, a locking assembly, and a pressing assembly. The core shaft is slidably connected to the casing assembly. The locking assembly and the pressing assembly are wrapped around the core shaft. The locking assembly can rotate when a free end of the cuff belt moves with respect to the casing assembly. The locking assembly can further press against the cuff belt when the core shaft slides in the casing assembly. The pressing assembly presses against the locking assembly to prevent the locking assembly from rotating back.

Abstract: An image processing method is provided to be performed by an electronic device. The method includes: obtaining a target image including a text object, and determining a region proposal in the target image corresponding to the text object; obtaining region proposal feature information of the region proposal, and generating an initial mask according to the region proposal feature information; and restoring the initial mask to a target binary mask, determining a mask connection region in the target binary mask, and determining a text image region associated with the text object in the target image according to the mask connection region.

Abstract: The present disclosure provides the use of 4-(Phenylethynyl) benzoic acid in preparing a plant growth regulator. 4-(Phenylethynyl) benzoic acid has a formula as C15H10O2, a molecular weight of 222.2390. The optimum concentration of 4-(Phenylethynyl) benzoic acid in the plant growth regulator is in a range of 10 ?M to 200 ?M. The plant growth regulator further contains a pesticidally acceptable carrier. The present disclosure further provides the use of 4-(Phenylethynyl) benzoic acid in regulating plant growth. In the use of 4-(Phenylethynyl) benzoic acid in preparing a plant growth regulator of the present disclosure, 4-(Phenylethynyl) benzoic acid has the ABA-like effects, and is more stable, easily available, cheaper, and environmentally friendly. Therefore, the present disclosure is suitable for large-scale popularization.

Abstract: The invention relates to a recombinant Escherichia coli expressing a fusion protein of formamidase and phosphite dehydrogenase, a construction method and use thereof. The invention includes adopting engineered E. coli DH5? as a host, amplifying a cloned formamidase gene and a cloned phosphite dehydrogenase gene into a fusion gene, ligating the fusion gene to a multiple cloning site of a vector, transforming the obtained recombinant plasmid into the E. coli DH5?, extracting the plasmid and transforming into an expression strain, and performing induction culture to obtain a recombinant E. coli. The recombinant E. coli can express a fusion protein of formamidase and phosphite dehydrogenase.

Abstract: A convenient self-locking blood pressure cuff facilitating one-handed use by a user taking his own blood pressure includes a cuff belt, a casing assembly, and a self-locking structure. The self-locking structure is received in the casing assembly. The self-locking structure includes a core shaft, a locking assembly, and a pressing assembly. The core shaft is slidably connected to the casing assembly. The locking assembly and the pressing assembly are wrapped around the core shaft. The locking assembly can rotate when a free end of the cuff belt moves with respect to the casing assembly. The locking assembly can further press against the cuff belt when the core shaft slides in the casing assembly. The pressing assembly presses against the locking assembly to prevent the locking assembly from rotating back.

Abstract: Implementations of the present specification provide a blockchain-based identity verification method and related hardware. The method includes: An agent client generates an identity verification request based on identity verification input information of a business platform, the identity verification input information indicating an identity verification parameter for identity verification and an identity verification platform that executes the identity verification. The agent client sends the identity verification request to the identity verification platform. The identity verification platform performs identity verification on the identity verification parameter to obtain a result of the identity verification. The identity verification platform submits a transaction including a verifiable credential of a result of the identity verification to a blockchain.

Abstract: Implementations of the present specification provide a blockchain-based identity verification method and related hardware. The method includes: An agent client generates an identity verification request based on identity verification input information of a business platform, the identity verification input information indicating an identity verification parameter for identity verification and an identity verification platform that executes the identity verification. The agent client sends the identity verification request to the identity verification platform. The identity verification platform performs identity verification on the identity verification parameter to obtain a result of the identity verification. The identity verification platform submits a transaction including a verifiable credential of a result of the identity verification to a blockchain.

Abstract: A convenient self-locking blood pressure cuff facilitating one-handed use by a user taking his own blood pressure includes a cuff belt, a casing assembly, and a self-locking structure. The self-locking structure is received in the casing assembly. The self-locking structure includes a core shaft, a locking assembly, and a pressing assembly. The core shaft is slidably connected to the casing assembly. The locking assembly and the pressing assembly are wrapped around the core shaft. The locking assembly can rotate when a free end of the cuff belt moves with respect to the casing assembly. The locking assembly can further press against the cuff belt when the core shaft slides in the casing assembly. The pressing assembly presses against the locking assembly to prevent the locking assembly from rotating back.

Abstract: An image processing method is provided to be performed by an electronic device. The method includes: obtaining a target image including a text object, and determining a region proposal in the target image corresponding to the text object; obtaining region proposal feature information of the region proposal, and generating an initial mask according to the region proposal feature information; and restoring the initial mask to a target binary mask, determining a mask connection region in the target binary mask, and determining a text image region associated with the text object in the target image according to the mask connection region.

Abstract: The invention relates to a recombinant Escherichia coli expressing a fusion protein of formamidase and phosphite dehydrogenase, a construction method and use thereof. The invention includes adopting engineered E. coli DH5? as a host, amplifying a cloned formamidase gene and a cloned phosphite dehydrogenase gene into a fusion gene, ligating the fusion gene to a multiple cloning site of a vector, transforming the obtained recombinant plasmid into the E. coli DH5?, extracting the plasmid and transforming into an expression strain, and performing induction culture to obtain a recombinant E. coli. The recombinant E. coli can express a fusion protein of formamidase and phosphite dehydrogenase.

Abstract: Bioelectrochemical systems (BES) having configurations with spiral wound structures and with frame-and-plate structures are provided. Systems may allow for production of an electrical current that is at least partially generated by anodophilic microorganisms connected directly or indirectly to an electrode. A spiral wound or frame-and-plate type bioelectrochemical system may include an anolyte influent point, a catholyte influent point, electrodes, ion selective membranes, mesh separators, gas collection devices, an exterior containment vessel, and one or more external electrical devices.