Abstract: The present disclosure provides a spatial parking place detection method and device, a storage medium and a program product, which relate to the field of data processing and, in particular, to the fields of computer vision, autonomous parking and autonomous driving. A specific implementation lies in: acquiring ultrasonic data around a vehicle collected by an ultrasonic sensor on the vehicle, and image data around the vehicle collected by an image collection apparatus; determining a first spatial parking place around the vehicle according to the ultrasonic data, and determining a second spatial parking place around the vehicle according to the image data; fusing the first spatial parking place and the second spatial parking place that are located at an identical position to determine a spatial parking place at that position; and checking the availability of the detected spatial parking place, and determining available spatial parking places of the vehicle.

Abstract: Provided is a method for preparing 4-(hydroxymethylphosphinyl)-2-oxobutanoic acid, comprising the following steps: a) mixing methylphosphonite diester, carboxylic acid and acryloyl cyanide, performing addition reaction, and performing distillation under reduced pressure to obtain a material solution of (3-cyano-3-carbonylpropyl)methylphosphonate; b) mixing the material solution of (3-cyano-3-carbonylpropyl)methylphosphonate obtained in step a) with water uniformity, cooling to 10° C.-40° C., then adding hydrochloric acid dropwise for acidification, and after the dropwise addition being completed, continuing stirring for 0.1 h-1 h, then performing hydrolysis reaction, and finally performing purification treatment to obtain 4-(hydroxymethylphosphinyl)-2-oxobutanoic acid. In the provided preparation method, cyanation reaction is not required, which avoids the use of cyclic phosphonic anhydride that is high in cost and difficult to obtain and the highly toxic sodium cyanide.

Abstract: A method for preparing 4-(hydroxymethylphosphinyl)-2-oxobutanoic acid, comprising the following steps: a) mixing 3-chloropropionyl chloride, a first solvent, trimethylsilyl cyanide and cyanide salt, performing a substitution reaction to obtain a material solution containing 4-chloro-2-oxobutyronitrile, then performing distillation under reduced pressure, and performing separation to obtain 4-chloro-2-oxobutyronitrile intermediate; b) subjecting the 4-chloro-2-oxobutyronitrile intermediate obtained in step a) and methyl phosphonite diester to Arbuzov reaction in a second solvent in the presence of cuprous iodide to obtain a material solution of (3-cyano-3-oxopropyl) methyl phosphinate, and performing purification to obtain crude (3-cyano-3-oxopropyl) methyl phosphinate; c) mixing the obtained crude (3-cyano-3-oxopropyl)methyl phosphinate with hydrochloric acid, performing hydrolysis reaction, and then performing purification treatment to obtain 4-(hydroxymethylphosphinyl)-2-oxobutanoic acid.

Abstract: The present invention provides a method for preparing 4-(hydroxymethylphosphinyl)-2-oxobutanoic acid, comprising the following steps: a) mixing acryloyl chloride, a first solvent, a polymerization inhibitor, a catalyst and potassium ferrocyanide, performing a substitution reaction, and performing distillation under reduced pressure to obtain an acryloyl cyanide intermediate; b) mixing the acryloyl cyanide intermediate obtained in step a) with hydrochloric acid and a polymerization inhibitor, performing a hydrolysis reaction, and then performing purification treatment to obtain crude 2-carbonyl-3-butenoic acid; c) mixing the crude 2-carbonyl-3-butenoic acid obtained in step b) with a second solvent and methyldichlorophosphine, and performing an addition reaction to obtain a solution containing diacyl chloride; d) mixing the solution containing diacyl chloride obtained in step c) with water, performing a hydrolysis reaction, and performing purification to obtain 4-(hydroxymethylphosphinyl)-2-oxobutanoic acid.

Abstract: Provided is a bicycle handlebar grip assembly for mounting on a handlebar of a bicycle handlebar, the bicycle handlebar grip assembly including at least one handgrip body for arranging on a handlebar, such as the end thereof, for a rider to thereby hold the handlebar, fixing means for fixing the bicycle handlebar grip assembly to the handlebar, such as for the purpose of securing or clamping this, and a coupling connection for coupling the handgrip body to the fixing means

Abstract: An information processing system, method, apparatus, device and a storage medium, where the system includes: a first data provider, a collaborator and second data providers, which participate in federated learning; the first data provider is used to generate and send a digital twin model to the collaborator; the digital twin model is used to reflect a relationship between a target result and a plurality of device running states that affect the target result; the collaborator is used to send the digital twin model to the second data providers, so that the second data providers train the digital twin model based on local data and receive corresponding model parameters; and aggregate the model parameters to obtain a global model, so that the second data providers can train on the basis of the digital twin model.

Abstract: Provided are an on-board data processing method, an electronic device and a storage medium, which relates to a field of artificial intelligence technology, and in particular, to fields of Internet of Things, autonomous parking, automatic driving and the like. The on-board data processing method includes: comparing collected user behavior data with on-board data, to obtain difference data used to characterize scene data that is related to user behavior and not included in the on-board data; reporting the difference data; and updating the on-board data by using a downloaded data package obtained through the difference data, in response to a data update operation. By adopting the method, the accuracy of driving in the automatic driving scene may be improved.

Abstract: The present invention relates to a novel compound (formula I), which has cancer treatment activity. The present invention also relates to a preparation method for the compound and a pharmaceutical composition containing the compound.

Abstract: Disclosed are a compound (as shown in formula I) as an extracellular signal-regulated kinase (ERK) inhibitor, a pharmaceutical composition thereof, a preparation method therefor, and use thereof in treating ERK-mediated diseases. Said compound plays a role by regulating a plurality of processes such as cell proliferation, apoptosis, migration and angiogenesis.

Abstract: The present disclosure provides a spatial parking place detection method and device, a storage medium and a program product, which relate to the field of data processing and, in particular, to the fields of computer vision, autonomous parking and autonomous driving. A specific implementation lies in: acquiring ultrasonic data around a vehicle collected by an ultrasonic sensor on the vehicle, and image data around the vehicle collected by an image collection apparatus; determining a first spatial parking place around the vehicle according to the ultrasonic data, and determining a second spatial parking place around the vehicle according to the image data; fusing the first spatial parking place and the second spatial parking place that are located at an identical position to determine a spatial parking place at that position; and checking the availability of the detected spatial parking place, and determining available spatial parking places of the vehicle.

Abstract: The present disclosure provides a locating element detection method, device and medium, and relates to object detection technologies and is applicable for autonomous parking scenarios. The method includes: obtaining a circular-scanning stitched image around a vehicle; detect the circular-scanning stitched image to determine at least one locating element existing on ambient ground of the vehicle and a semantic type to which each pixel on the circular-scanning stitched image belongs; and performing matching and fusion on the at least one locating element based on the semantic type to obtain a locating element detection result.

Abstract: An information processing method, an electronic device, and a storage medium are provided, which are related to the fields of big data, cloud computing, automatic driving, and the like. The specific implementation includes: receiving a data acquisition task and an acquisition strategy issued by a cloud; analyzing the acquisition strategy to obtain priority information of the acquired data for the data acquisition task; and taking the priority information as an importance degree identifier corresponding to the acquired data, and performing preferential transmission after data acquisition and data screening according to the importance degree identifier.

Abstract: An information processing method, an electronic device, and a storage medium are provided, which are related to the fields of big data, cloud computing, automatic driving, and the like. The specific implementation includes: receiving a data acquisition task and an acquisition strategy issued by a cloud; analyzing the acquisition strategy to obtain priority information of the acquired data for the data acquisition task; and taking the priority information as an importance degree identifier corresponding to the acquired data, and performing preferential transmission after data acquisition and data screening according to the importance degree identifier.

Abstract: Disclosed are a compound (as shown in formula I) as an extracellular signal-regulated kinase (ERK) inhibitor, a pharmaceutical composition thereof, a preparation method therefor, and use thereof in treating ERK-mediated diseases. Said compound plays a role by regulating a plurality of processes such as cell proliferation, apoptosis, migration and angiogenesis.

Abstract: The present disclosure provides a locating element detection method, device and medium, and relates to object detection technologies and is applicable for autonomous parking scenarios. The method includes: obtaining a circular-scanning stitched image around a vehicle; detect the circular-scanning stitched image to determine at least one locating element existing on ambient ground of the vehicle and a semantic type to which each pixel on the circular-scanning stitched image belongs; and performing matching and fusion on the at least one locating element based on the semantic type to obtain a locating element detection result.

Abstract: A connector includes an insulating housing having a rear wall of which a front side extends forward to form a tongue portion and a back side defines a concave groove in accordance with the tongue portion. The tongue portion defines a plurality of terminal grooves. A plurality of terminals each has a fixing portion fixed in a rear of the terminal groove with a rear end thereof further projecting into the concave groove, a contact portion disposed in the terminal groove, and a soldering tail stretching outside the insulating housing. A water-proof member is formed in the concave groove by injecting molten water-proof colloid in the concave groove to seal up intervals between the fixing portions of the terminals and inner sides of the rears of the terminal grooves. A metal shell is molded in the insulating housing.

Abstract: An audio jack connector adapted for soldering on a circuit board and engaging with an audio plug connector includes an insulating housing and a plurality of terminals. The insulating housing has a main body, and an insertion portion connecting with one side of the main body. The insertion portion defines an insertion hole for receiving the audio plug connector therein. The main body defines a plurality of terminal grooves with bottoms thereof passing through a bottom surface of the main body. The insulating housing defines a plurality of mouths communicating between the insertion hole and the terminal grooves. The terminals are disposed in the terminal grooves. Each terminal has a contact portion projecting into the insertion hole through the mouth to electrically contact with the audio plug connector, and a soldering portion received in the bottom of the terminal groove to be soldered on the circuit board.

Abstract: An audio jack connector adapted for soldering on a circuit board and engaging with an audio plug connector includes an insulating housing and a plurality of terminals. The insulating housing has a main body, and an insertion portion connecting with one side of the main body. The insertion portion defines an insertion hole for receiving the audio plug connector therein. The main body defines a plurality of terminal grooves with bottoms thereof passing through a bottom surface of the main body. The insulating housing defines a plurality of mouths communicating between the insertion hole and the terminal grooves. The terminals are disposed in the terminal grooves. Each terminal has a contact portion projecting into the insertion hole through the mouth to electrically contact with the audio plug connector, and a soldering portion received in the bottom of the terminal groove to be soldered on the circuit board.

Abstract: A connector includes an insulating housing having a rear wall of which a front side extends forward to form a tongue portion and a back side defines a concave groove in accordance with the tongue portion. The tongue portion defines a plurality of terminal grooves. A plurality of terminals each has a fixing portion fixed in a rear of the terminal groove with a rear end thereof further projecting into the concave groove, a contact portion disposed in the terminal groove, and a soldering tail stretching outside the insulating housing. A water-proof member is formed in the concave groove by injecting molten water-proof colloid in the concave groove to seal up intervals between the fixing portions of the terminals and inner sides of the rears of the terminal grooves. A metal shell is molded in the insulating housing.