Abstract: A method for detecting slow HTTP DoS (SHD) attacks in a backbone network can detect three different types of SHID attacks. The method is divided into an off-line training phase and an on-line detection phase. In the off-line training phase, several types of representative unidirectional traffic features are extracted according to attack characteristics of different SHD types and corresponding feature groups are built, where these features can effectively deal with a large amount of unidirectional traffic in backbone networks; a public backbone network dataset is systematically sampled and data are stored in combination with Count-min Sketch, which greatly minimizes storage and computational overhead required in the backbone networks; and a specific machine learning algorithm is used for training to obtain attack detection models. The method can be used for detecting and warning SHD attacks in mass traffic scenarios such as backbone networks to provide a basis for maintaining network security.

Abstract: A display device and a panel drive circuit thereof, and a method for charge bleed-off are disclosed, relating to the field of display technologies. The panel drive circuit includes a panel control circuit and a display drive circuit. In the case that a display panel is turned off, the panel control circuit transmits at least one of a display drive signal and a charge bleed-off signal sequentially to the display drive circuit before a potential of a power supply signal drops to less than a potential threshold, such that the display drive circuit sequentially performs at least one of controlling the display panel to display a second picture that is monochrome and bleeding off charges in advance.

Abstract: Common voltage compensation device for display panel is provided. The common voltage compensation device is on a first side of a display panel, and a common electrode line includes a near-end area, a far-end area, and a middle-end area; the common voltage compensation device includes a voltage feedback line, a common voltage compensation circuit, and voltage compensation lines, the voltage feedback line is connected to a feedback point at the middle-end area and is configured to detect a common voltage on the common electrode line; the common voltage compensation circuit is configured to obtain a compensation voltage according to the detected common voltage; and the voltage compensation lines are respectively connected to a first compensation point at the near-end area, a second compensation point at the middle-end area, and a third compensation point at the far-end area, and configured to transmit the compensation voltage to the common electrode line.

Abstract: An embodiment of the present disclosure provides a display panel, comprising a display substrate and a packaging cover plate that are oppositely arranged to form a cell, in which the packaging cover plate comprises a cover plate substrate, an air cushion layer formed on the cover plate substrate, and an packaging layer covering the air cushion layer and having a first concave structure, the display substrate comprises a base substrate and a display component formed on the base substrate and embedded in the first concave structure.

Abstract: Disclosed is a dual-band coupling low-noise amplifying circuit and an amplifier, which comprises an input frequency dividing circuit, a high-frequency amplifying circuit, a low-frequency amplifying circuit and an output combining circuit. The input frequency dividing circuit includes a first duplexer, a first capacitor and a second capacitor, and the output combining circuit includes a second duplexer, a third capacitor and a fourth capacitor. The input frequency dividing circuit divides the received radio frequency signals into high-frequency signals and low-frequency signals, then inputs the high-frequency signals into the high-frequency amplifying circuit for power amplification, and inputs the low-frequency signals into the low-frequency amplifying circuit for power amplification, and outputs the high-frequency signals and the low-frequency signals after power amplification through the output combining circuit.

Abstract: A display driving module, a display driving method, and a display device are provided. The display driving module includes a clock signal line, a clock signal generating circuit and a gate driving circuit, where the gate driving circuit includes multiple stages of gate driving units; the clock signal generating circuit is electrically connected to the clock signal line and is configured to generate at least two clock signals and provide different clock signals to the clock signal line in a time-sharing manner; the gate driving unit is electrically connected to the clock signal line and configured to generate a gate driving signal according to the clock signals on the clock signal line; when potentials of the clock signals are valid voltages, the potentials of different clock signals are different.

Abstract: A method for unlocking a display panel and a display assembly are provided. The method includes: acquiring a plurality of preset pictures, wherein different preset pictures among the plurality of preset pictures correspond to different preset inputs; performing at least one unlocking process, wherein each of the at least one unlocking process includes: causing the display panel to display at least one preset picture of the plurality of preset pictures and receive a verification input from a user, when the display panel is in a locked state; determining whether the verification input is identical with the preset input corresponding to a displayed preset picture; and switching the display panel to an unlocked state, if the verification input is identical with the preset input corresponding to the displayed preset picture.

Abstract: Provided herein is a corneal topography system that utilizes a prism placed in optical alignment between the pattern image generator, such as a Placido disk, and the eye. The corneal topography system may be a prismatic triangulating corneal topography system that utilizes light rays of angle ? at the edge of the prism not passing through the prism, light rays that deviate from angle ? passing through the prism and light rays of angle a calculated from the reflection image to determine the corneal reflection point on the corneal surface. Also provided is a method for mapping a corneal surface of an eye of a subject utilizing an optical prism to produce a reflection image from a corneal surface reflection point on the corneal surface of the eye.

Abstract: The present disclosure belongs to the technical field of plant extraction, and particularly relates to mangiferin and a preparation method thereof. The present disclosure includes activated carbon treatment and extraction of raw materials successively to obtain the mangiferin; the raw materials are mango leaves and/or almond leaves; the extraction is absolute methanol extraction, and the extraction is conducted at 60-65° C. Results of examples indicate that mangiferin obtained by the preparation method of mangiferin provided by the present disclosure has a purity of 98% to 99.5%, and mangiferin yield is as high as 66.7% of total mangiferin content in the mango leaves or almond leaves. The preparation method of mangiferin provided by the present disclosure is simple to operate, which obtains high-yield and highly pure mangiferin while reducing production costs of the mangiferin, and realizes the industrial production of the mangiferin.

Abstract: The invention relates to an electric vehicle cabin heating system and a control method. The system comprises a first refrigerant circuit and a second refrigerant circuit that are connected in parallel, wherein the circuits each comprise a gas-liquid separator and a compressor that are connected in series; the first refrigerant circuit further comprises a first expansion unit; the second refrigerant circuit further comprises a second expansion unit and a condenser; and the first expansion unit is connected to the second expansion unit and the condenser in parallel. Thus, rapid cabin heating and stable heating capacity are achieved, the dependence on a heater is eliminated, and an air-conditioning system is simplified.

Abstract: A display driving module, a display driving method, and a display device are provided. The display driving module includes a clock signal line, a clock signal generating circuit and a gate driving circuit, where the gate driving circuit includes multiple stages of gate driving units; the clock signal generating circuit is electrically connected to the clock signal line and is configured to generate at least two clock signals and provide different clock signals to the clock signal line in a time-sharing manner; the gate driving unit is electrically connected to the clock signal line and configured to generate a gate driving signal according to the clock signals on the clock signal line; when potentials of the clock signals are valid voltages, the potentials of different clock signals are different.

Abstract: The present disclosure discloses a BD cell display panel, a manufacturing method and a driving method thereof, and a display device. The BD cell display panel includes a main cell and a sub cell which are stacked, an XPCBA plate and a control plate. The control plate is configured to read the pixel offset amount and the mura compensation data from the XPCBA plate, and adjust at least one of the first display area and the second display area according to the pixel offset amount, thus causing pixels in the first display area and the second display area that are orthogonally projected within an actual display area of the BD cell display panel to be displayed, and compensating for the mura in the main cell and the sub cell according to the mura compensation data.

Abstract: The present disclosure provides a display method, a computer storage medium, and a display device. The display method includes: detecting a frame image including a still image; accumulating a retention time of the still image in the frame image, the retention time is a time for uninterruptedly displaying the still image; determining whether the accumulated retention time is greater than a threshold value; sequentially shifting data of the frame image by n rows in response to that the accumulated retention time is greater than the threshold value, the threshold value is an accumulated value of the retention time when a line afterimage begins to appear on the still image; a row direction of the n rows is a scanning direction of the frame image; wherein 1?n?3N/4, N is a total number of rows scanned for one frame image, n is an integer, and 3N/4 is rounded to an integer.

Abstract: An embodiment of the present disclosure provides a display panel, comprising a display substrate and a packaging cover plate that are oppositely arranged to form a cell, in which the packaging cover plate comprises a cover plate substrate, an air cushion layer formed on the cover plate substrate, and an packaging layer covering the air cushion layer and having a first concave structure, the display substrate comprises a base substrate and a display component formed on the base substrate and embedded in the first concave structure.

Abstract: A display panel, comprising a display substrate and a packaging cover plate that are oppositely arranged to form a cell, in which the packaging cover plate comprises a cover plate substrate, an air cushion layer formed on the cover plate substrate, and an packaging layer covering the air cushion layer and having a first concave structure, the display substrate comprises a base substrate and a display component formed on the base substrate and embedded in the first concave structure.

Abstract: The present invention discloses a breeding method and application of a new downy mildew-resistant interspecific hybrid Cucumis sativus variety.

Abstract: A method for unlocking a display panel and a display assembly are provided. The method includes: acquiring a plurality of preset pictures, wherein different preset pictures among the plurality of preset pictures correspond to different preset inputs; performing at least one unlocking process, wherein each of the at least one unlocking process includes: causing the display panel to display at least one preset picture of the plurality of preset pictures and receive a verification input from a user, when the display panel is in a locked state; determining whether the verification input is identical with the preset input corresponding to a displayed preset picture; and switching the display panel to an unlocked state, if the verification input is identical with the preset input corresponding to the displayed preset picture.

Abstract: The present invention discloses a breeding method and application of a new downy mildew-resistant interspecific hybrid Cucumis sativus variety.

Abstract: An embodiment of the present disclosure provides a display panel, comprising a display substrate and a packaging cover plate that are oppositely arranged to form a cell, in which the packaging cover plate comprises a cover plate substrate, an air cushion layer formed on the cover plate substrate, and an packaging layer covering the air cushion layer and having a first concave structure, the display substrate comprises a base substrate and a display component formed on the base substrate and embedded in the first concave structure.

Abstract: In one or more embodiments, a shielding device is provided to shield a bore of a shaft against surface treatment, the shielding device including a sleeve to be at least partially received within the bore, the sleeve defining on its side wall a through-aperture and being of a first cross-sectional dimension when the through-aperture is at a rest position, and a pin to be at least partially received within the sleeve, the sleeve being of a second cross-sectional dimension greater than the first cross-sectional dimension when the through-aperture is at an expanded position with the pin being at least partially received within the sleeve.