Abstract: The present invention relates to use of a benzisoselenazole compound in the preparation of a drug for the treatment of spinaglioma. By applying the benzisoselenazole compound, cell proliferation of the spinaglioma can be effectively inhibited at the cellular level, with an obvious dose dependence. The tumor growth of a tumor-bearing mouse can be effectively inhibited at the animal model level, and the survival period of the tumor-bearing mouse can be prolonged.

Abstract: A compact high-speed electrical connector and electronic system thereof. The connecter comprises first, second, and third mating interfaces configured to receive one or more cards, and a mounting interface configured to mount to a substrate. The first, second, and third mating interfaces extend in columns parallel to each other and perpendicular to a mating direction. The first, second, and third mating interfaces offset from each other in a mating direction. The mounting interface extends in the mating direction. Such a configuration enables direction interconnections between three components that support hybrid functions such as high-speed signals, power, and/or side bands, while satisfying a limited space provided by an electronic system.

Abstract: A safety belt detection method, apparatus, computer device and computer readable storage medium are disclosed. The safety belt detection method includes the steps as follows. An image to be detected is obtained. The image to be detected is inputted into a detection network which includes a global dichotomous branch network and a grid classification branch network. A dichotomous result, which indicates whether a driver is wearing a safety belt and is output from the global dichotomous branch network, is obtained. A grid classification diagram, which indicates a position information of the safety belt and is output from the grid classification branch network, is obtained based on image classification. A detection result of the safety belt, indicating whether the driver is wearing the safety belt normatively, is obtained based on the dichotomous result and the grid classification diagram.

Abstract: Provided in the present disclosure is a method for sequencing a double-stranded target polynucleotide. The method can keep ATP at a relatively constant concentration during sequencing, so that the sequencing rate can be better kept stable and unchanged. Further provided in the present disclosure is a kit for sequencing a double-stranded target polynucleotide, the kit including a transmembrane pore in the membrane, a helicase, an ATP-generating enzyme and an ATP-generating substrate.

Abstract: A portable illumination apparatus such as, for example, a task light, that is lightweight and compact to provide enhanced illumination in an ambient environment when placed in one of a plurality of operating modes. The portable illumination apparatus includes a support base and a light module that includes one or more light sources and a rechargeable power source. The light module may be manually manipulated for movement between a collapsed, stowed position and a deployed position by rotation of about a first rotational axis. In the deployed position, the light module is rotatable about the second rotational axis that is perpendicular to the first rotational axis. The support base incorporates a carabiner clip member that facilitates secure attachment of the portable illumination apparatus to an object or surface in a manner that facilitates hands-free use of the portable illumination apparatus.

Abstract: Disclosed herein is a power supply apparatus. The power supply apparatus includes at least one power unit and a magnetic unit. The magnetic unit is stacked with and electrically connected to the at least one power unit. The magnetic unit comprises a plurality of pins and a magnetic core. The at least part of the plurality of pins extends out of a projection of the magnetic core in a connection plane of the at least one power unit and the magnetic unit to connect to the at least one power unit.

Abstract: The present invention provides a helicase BCH2X, comprising an amino acid sequence represented by any one of SEQ ID NOs: 1-3. The present invention also provides a complex structure comprising the helicase BCH2X and a binding moiety for binding polynucleotides. The present invention also provides a use of the helicase BCH2X or the complex structure comprising same in the control and characterization of polynucleotides and single-molecule nanopore sequencing.

Abstract: Provided is helicase BCH1X, which comprises an amino acid sequence represented by SEQ ID NO: 1 or 2. Further provided are a complex structure comprising helicase BCH1X and a binding moiety used for binding to a polynucleotide, and a use thereof in the control and characterization of a polynucleotide and in single molecule nanopore sequencing.

Abstract: Provided are a system and a method for impact testing and monitoring of a high-energy flexible net. The system includes a vertical impact testing unit, a slope impact testing unit, an impact simulation unit, and an impact monitoring unit. The vertical impact testing unit includes a vertically positioned gravity wall. The slope impact testing unit includes a wall slope positioned perpendicularly to a second side of the gravity wall. A first side of the gravity wall and a slope surface of the wall slope are securely provided with a flexible net, respectively. The impact simulation unit includes an impact assembly and a lifting assembly. The impact monitoring unit is configured to monitor a deformation result and an internal force change result of the flexible net.

Abstract: This disclosure relates to a wide-angle lens, a camera module and a vehicle camera. The wide-angle lens sequentially includes: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. An object side surface of the first lens is convex and an image side surface of the first lens is concave. An object side surface of the second lens is convex and an image side surface of the second lens is concave. The third lens and the sixth lens are bi-concave lenses. The fourth lens, the fifth lens and the seventh lens are bi-convex lenses. The fifth lens and the sixth lens form a cemented body.

Abstract: The present invention relates to a high-strength, high-corrosion resistance ternary magnesium alloy and a preparation method therefor, the magnesium alloy comprising the following element components by mass percentage: 8-12 wt % of Y, 0.6-3 wt % of Al and the remainder being Mg. The method comprises: (1) under a protective atmosphere, preparing a Mg—Y intermediate alloy, an aluminum ingot and a magnesium ingot into a magnesium alloy melt; (2) under a protective atmosphere, allowing the magnesium alloy melt to stand after stirring, then carrying out refining, degassing, and slag removal, allowing the magnesium alloy melt to stand again, then thermally insulating to obtain a magnesium alloy liquid; and (3) casting and molding the magnesium alloy liquid under a protective atmosphere, and forming a cast ingot; the three steps above ultimately obtain a high-strength, high-corrosion resistance ternary magnesium alloy.

Abstract: Various techniques for implementing resistive temperature sensors that rely on the resistors' temperature sensitivity to provide temperature sensing are disclosed. Temperature sensitive resistors may be implemented in a resistor stack in combination with a resistor stack of resistors that are relatively temperature indifferent. Various temperature sensor circuits implementing these temperature sensitive resistors are also disclosed. A temperature sensor circuit may implement the temperature sensitive resistors along with the resistors that are relatively stable with temperature to output a voltage signal that is indicative of the temperature sensed by the circuit. In some instances, the signal from the temperature sensitive resistors is increased through the use of a feedback resistor loop.

Abstract: A multi-source domain adaptive electroencephalogram (EEG) emotional state classification method based on knowledge distillation are provided. First, data is obtained for band-pass filtering, and artifacts are removed by an independent component analysis technology. Second, EEG features are extracted by using a differential entropy method, and a three-dimensional EEG time series is converted into a two-dimensional sample matrix. Then, a training set and a test set are defined in two task scenarios, respectively. A pseudo-label triple loss based on marginal sampling is combined with a maximum mean discrepancy. Knowledge is learned from different source domains, so that a plurality of single-source models are utilized to the greatest extent, and a more powerful model is implemented with less time consumption. Finally, the classification accuracy is used to evaluate the performance of the model in the two task scenarios.

Abstract: A high-speed, high-performance cable connector is provided. The connector includes a housing having one or more slots configured for receiving an add-in card, and one or more subassemblies held by the housing. Each subassembly includes conductive elements held by a subassembly housing in a row. Each conductive element may include a mating end for contacting an add-in card and a tail end for a cable wire to be attached thereon. The conductive elements include first-type conductors for signals and second-type conductors for ground signals. Each first-type conductor may be shaped between a first segment comprising the mating end and a second segment comprising the tail end to receive a capacitor to couple the first and second segments. Techniques described herein can reduce crosstalks and insertion loss, and therefore improve signal integrity at high frequencies and enable transmitting high-speed signals to cables directly attached to connector conductive elements.

Abstract: An air filtering device for placement within an air duct for a residential furnace or air conditioning unit to provide at least MERV 13, preferably MERV 15, and most preferably MERV 17 efficiency. The air filtering device includes a frame which houses a filtering area having several stacked layers for removing particles from air before it is heated or cooled and then directed into air ducts for delivery throughout a building.

Abstract: A portable vacuum sealer, including a main body and a base; the main body includes a housing with an internal chamber, a vacuum pump provided in the internal chamber, and an airbag inserted into a bottom of the housing; a suction nozzle is provided on the airbag, and the vacuum pump is connected to the suction nozzle through a suction tube; the base is provided below the main body and detachably connected to the airbag by an engaging structure, in which the airbag shrinks to drive the base to move toward a bottom of the housing by the engaging structure when the vacuum pump is activated. Adopting the portable vacuum sealer, the airbag shrinks upwards to drive the base simultaneously to move upwards to abut the bottom of the main body when the vacuum pump is activated, which frees the consumer's hands, thereby significantly improving the packaging efficiency.

Abstract: An electrical connector connected with a cable connector connected to cables. The cable connector comprises a plurality of ground terminals, a plurality of signal terminals, and an electromagnetic shielding member. The electrical connector comprises a circuit board, a plurality of ground conductive pads, a plurality of signal conductive pads, and a shielding ground conductive pad. The circuit board comprises two electrical connecting areas that are parallel to each other along first direction. The plurality of ground conductive pads are disposed on a surface of the circuit board at intervals. At least one signal conductive pad is disposed between two adjacent ground conductive pads along second direction that is perpendicular to the first direction. Each of the signal conductive pads being directly connected with the corresponding signal terminal and not directly connected to the cables. The shielding ground conductive pad is disposed on the surface of the circuit board.

Abstract: Various techniques for implementing resistive temperature sensors that rely on the resistors' temperature sensitivity to provide temperature sensing are disclosed. Temperature sensitive resistors may be implemented in a resistor stack in combination with a resistor stack of resistors that are relatively temperature indifferent. Various temperature sensor circuits implementing these temperature sensitive resistors are also disclosed. A temperature sensor circuit may implement the temperature sensitive resistors along with the resistors that are relatively stable with temperature to output a voltage signal that is indicative of the temperature sensed by the circuit. In some instances, the signal from the temperature sensitive resistors is increased through the use of a feedback resistor loop.

Abstract: A cable connector includes a plurality of signal pair units that are disposed at intervals. Each signal pair unit includes two signal terminals that are disposed in parallel. A first end of each signal terminal is configured to be in electrical contact with a corresponding pin on a circuit board. A second end of each signal terminal is configured to electrically connect to a corresponding cable. A bent portion is formed on each signal terminal in an extension direction of the signal terminal, and there is a specific distance between the bent portion and the first end. In this way, an extension length of the bent portion may be increased to ensure a reliable electrical connection between the cable connector and the circuit board without occupying surface space of the circuit board for being in contact with a mating surface of the signal terminal.