Abstract: The present application discloses a method for detecting cigarette appearance defects based on variational Bayesian inference. In a cigarette appearance defect detection scenario, in order to solve the problem that a current point estimation-based machine learning algorithm leads to an overconfidence decision in a data scarcity area, the present application proposes a variational inference-based Bayesian method to improve a SSD backbone network, preferably including calculating a real posterior probability by the variational inference method, replacing a point estimation mechanism of a convolution layer weight in the original backbone network by using a form of probability distribution, then detecting the improved extracted features by an SSD target detection algorithm, and furthermore, accurately determining whether the appearance of the cigarette is defective and the type and location of the defect.

Abstract: An integrated plugging and perforating operation system is provided, including an operation truck, a wellhead equipment pry, and a centralized control room. A mechanical mechanism and a power mechanism are arranged on a chassis of the operation truck. The mechanical mechanism includes a turntable assembly, where a telescopic arm assembly is installed on the turntable assembly, a mechanical arm assembly for logging operation is installed at an operating end of the telescopic arm assembly, and a logging winch assembly and a follow-up winch assembly are arranged at a counterweight end of the telescopic arm assembly to form a counter weight of the telescopic arm assembly. The power mechanism is configured for providing power output to the mechanical mechanism.

Abstract: Methods and systems for treatment prioritization using a neural network model are provided. Training the model includes generating an enriched genetic knowledge graph with edges characterizing relationships between genetic variants, genes, diseases, treatments and symptoms, embedding the graph vertices in genetic knowledge vectors, receiving training patient feature value sets, generating a training dataset of training patient vectors labelled with target values comprising treatment efficacity by scaling the genetic knowledge vectors by the patient feature value sets, and training the model to process an input patient vector and generate a predicted efficacity of the at least one treatment option.

Abstract: Methods and systems for phenotyping based on a neural network model are provided. Training the model includes generating a dataset of individual-specific variant graphs associated representing dependencies among variants in individuals' genomes based on biomedical domain knowledge labelled according to target phenotype values to be predicted, and training the model using the training dataset to generate a phenotype prediction from an input individual-specific variant graph. Measure the contribution of a genetic variant to a phenotype of a target individual includes generating an individual-specific variant graph for the individual, modifying the individual-specific variant graph to remove a genetic variant, providing the initial and the modified individual-specific variant graphs as input to the phenotyping neural network model to generate two phenotype predictions, and calculating a difference between the two predictions, providing a measure of the contribution of the genetic variant to the phenotype.

Abstract: An authentication method and apparatus are provided. In an embodiment, the authentication method includes: receiving, by a first network node, an enrollment request from a second network node; obtaining, by the first network node, position information of the second network node; and authenticating, by the first network node, the second network node according to the obtained position information of the second network node. A flexible simple authentication solution is provided, having low deployment costs.

Abstract: An autonomous driving control method for a vehicle may include: obtaining a road surface image from a sensor of the vehicle; detecting road surface damage from the road surface image using an image detection algorithm; determining a damage degree of the detected road surface damage and a damage distance of the road surface damage from the vehicle; and adjusting an autonomous driving strategy for the vehicle based on the damage degree and the damage distance. The autonomous driving control method for the vehicle can detect potholes or cracks in front of road accurately in real time and adjust the autonomous driving strategy based on a detection result, ensuring safety of passenger in the vehicle and improving passenger experience during the autonomous driving process.

Abstract: A structure for performing analysis includes a first opening formed on a back side of a substrate and passing through the substrate, a second opening connected with a bottom of the first opening and penetrating into a first dielectric layer formed on a front side of the substrate, a first conductive layer formed on a sidewall of the second opening and a contact element in the first dielectric layer, and a second conductive layer formed on a second dielectric layer. The first conductive layer contacts the second conductive layer electrically.

Abstract: A catalyst system for olefin polymerization contains a main catalyst and a cocatalyst. The cocatalyst contains a twelve-membered ring compound represented by formula (M). The catalyst system is suitable for preparing polypropylene products having high stereoregularity and low ash, and can regulate the melt index of the products within a wide range by adjusting the amount of hydrogenation. It is also suitable for copolymerization systems to improve the copolymerization yield.

Abstract: A magnesium-based solid, by means of determination based on a nitrogen adsorption method, has a multimodal pore distribution and a specific surface area of not less than 50 m2/g, and the pore size distribution of the solid is in a range of 1 nm to 300 nm. There is at least one peak within a pore size range of less than 10 nm, and there is at least another peak within a pore size range of not less than 10 nm. A catalyst is formed using the solid catalyst component is used for propylene polymerization.

Abstract: A structure for performing analysis includes a first opening formed on a back side of a substrate and passing through the substrate, a second opening connected with a bottom of the first opening and penetrating into a first dielectric layer formed on a front side of the substrate, a first conductive layer formed on a sidewall of the second opening and a contact element in the first dielectric layer, and a second conductive layer formed on a second dielectric layer. The first conductive layer contacts the second conductive layer electrically.

Abstract: A network traffic sending method and apparatus, and a hybrid honeypot system are provided. The method includes receiving a first attack traffic flow; determining that a request type of the first attack traffic flow is a first request type and determining maturity of a virtual honeypot model for the first request type. Upon the maturity of the virtual honeypot model for the first request type being higher than a threshold set for the first request type, the method includes forwarding the first attack traffic flow to a virtual honeypot using the model, or forwarding the first attack traffic flow to a virtual honeypot using the model and a physical honeypot. Otherwise, it includes forwarding the first attack traffic flow to a physical honeypot. Therefore, a virtual honeypot using a virtual honeypot model of relatively high maturity is used to respond to an attack traffic flow.

Abstract: A device for separating light flaky cut rolled stems (CRSs) by a throwing roller is provided. The device includes a vertically provided separation bin, and a CRS guide device and a CRS distribution plate which are arranged in the separation bin. The present disclosure further provides a method for separating light flaky CRSs by using the device. The present disclosure achieves full separation of finished CRSs from light flaky CRSs. The device of the present disclosure is designed for the first time, and can be directly connected to a pneumatic CRS feeding and discharging section of a production line. The device of the present disclosure is compact and suitable for industrial production.

Abstract: A device for separating light flaky cut rolled stems (CRSs) by a throwing roller is provided. The device includes a vertically provided separation bin, and a CRS guide device and a CRS distribution plate which are arranged in the separation bin. The present disclosure further provides a method for separating light flaky CRSs by using the device. The present disclosure achieves full separation of finished CRSs from light flaky CRSs. The device of the present disclosure is designed for the first time, and can be directly connected to a pneumatic CRS feeding and discharging section of a production line. The device of the present disclosure is compact and suitable for industrial production.

Abstract: A catalyst system for olefin polymerization contains a main catalyst and a cocatalyst. The cocatalyst contains a twelve-membered ring compound represented by formula (M). The catalyst system is suitable for preparing polypropylene products having high stereoregularity and low ash, and can regulate the melt index of the products within a wide range by adjusting the amount of hydrogenation. It is also suitable for copolymerization systems to improve the copolymerization yield.

Abstract: An authentication method and apparatus are provided. In an embodiment, the authentication method includes: receiving, by a first network node, an enrollment request from a second network node; obtaining, by the first network node, position information of the second network node; and authenticating, by the first network node, the second network node according to the obtained position information of the second network node. A flexible simple authentication solution is provided, having low deployment costs.

Abstract: An apparatus for selling cigarettes and a system for accessing cigarettes are described herein. The apparatus comprises a vending machine and a smoke purification system. The smoke purification system includes a housing, an extraction device, a smoke purifier, and an exhaustion device. An upper face of the housing is provided with an air inlet for sucking in air in an upper space of a smoking room, and a front face of the housing is provided with a fresh air outlet. An intake port of the extraction device is coupled with the air inlet, an escape port of the exhaustion device is coupled with the fresh air outlet through an exhaust channel, and two ends of the smoke purifier are coupled with an escape port of the extraction device and an intake port of the exhaustion device, respectively.

Abstract: An apparatus for selling cigarettes and a system for accessing cigarettes are described herein. The apparatus comprises a vending machine and a smoke purification system. The smoke purification system includes a housing, an extraction device, a smoke purifier, and an exhaustion device. An upper face of the housing is provided with an air inlet for sucking in air in an upper space of a smoking room, and a front face of the housing is provided with a fresh air outlet. An intake port of the extraction device is coupled with the air inlet, an escape port of the exhaustion device is coupled with the fresh air outlet through an exhaust channel, and two ends of the smoke purifier are coupled with an escape port of the extraction device and an intake port of the exhaustion device, respectively.

Abstract: A wireless earphone comprising an in-ear portion which is in contact with a human ear when the wireless earphone is worn. The in-ear portion comprises a wearing surface which couples the human ear canal when the wireless earphone is worn. The in-ear portion is provided with a wearing detection sensor, a sound venting hole and a contact group which are all disposed on the wearing surface. The wearing detection sensor, the sound venting hole and the contact group are all disposed on the wearing surface of the in-ear portion coupling the human ear canal, so that the wearing detection sensor can directly contact the skin of the human body when the earphone is worn, and thus the wearing detection sensor is improved.

Abstract: A brake disc used for brake systems of motor vehicles, rail vehicles and aircrafts and the brake disc includes a brake disc body, wherein the brake disc body is an aluminum alloy brake disc body, the two working surfaces of the aluminum alloy brake disc body are respectively attached with a wear-resistant layer, the wear-resistant layers are wear-resistant layers made of ceramic high-temperature resistant metal matrix composite (MMC) reinforced materials, and the wear-resistant layers made of ceramic high-temperature resistant MMC reinforced materials metallurgically bond with the aluminum alloy brake disc body through a squeeze casting technique.

Abstract: A composition of the wear-resistant material of the present invention includes high-temperature resistant skeleton metal materials, ceramic fiber materials and ceramic particle materials with the mass ratio of (10-60):(1-30):(10-70). The high-temperature resistant skeleton metal materials are foam metal or high-temperature resistant metal fibers. The wear-resistant material is good in wear-resistance, high in tenacity, suitable for occasions with high requirements for wear-resistance and tenacity and capable of being locally attached to the surface of the light metal alloy matrix to improve the wear-resistance and tenacity of the light metal alloy matrix under high temperature conditions. The locally-reinforced light metal matrix composites of the present invention are the light metal alloy matrix locally-reinforced through the wear-resistant material.