Abstract: An electronic device and a driving method therefor. Thicknesses of color resist and a black matrix in a first area, at a corresponding position of a light-transmitting area, of a color film substrate are smaller than the thicknesses of color resist and a black matrix outside the first area, a backlight module is defined with a through hole corresponding to the light-transmitting area, and a photographing module (30) is disposed corresponding to the through hole, so that external light rays can be obtained by means of the through hole and the light-transmitting area, thus under-screen photographing is achieved, and 100% full-screen design is satisfied.

Abstract: A processor with protection of an isolated memory and protection method for the isolated memory accessible only by a trusted core are shown. A processor has a trusted core with a right to access an isolated memory planned on a system memory, a normal core prohibited from accessing the isolated memory, and a last-level cache shared by the trusted core and the normal core. The in-core cache structure of the normal core and the last-level cache are included in a hierarchical cache system. In response to a memory access request issued by the normal core, the hierarchical cache system determines whether the memory access request hits the isolated memory and, if yes, the hierarchical cache system rejects the memory access request.

Abstract: A plate heat exchanger includes a number of first heat exchange plates and a number of second heat exchange plates. The first heat exchange plate includes a first wave crest and a first wave trough. The second heat exchange plate includes a second wave crest and a second wave trough. Along a thickness direction, a maximum distance between the first wave crest and the first wave trough is h. In a direction of a shortest line connecting tops of adjacent first wave crests, a minimum connecting width of the first wave trough and the second wave crest is W1, and a minimum connecting width of the first wave crest and the second wave trough is W2. At least one of a ratio of W1/h and a ratio of W2/h is within a range of 0.25 to 2.5 to ensure the connection strength between adjacent heat exchange plates.

Abstract: A method and a device for measuring a four-dimensional (4D) radiation pattern of an outdoor antenna based on an unmanned aerial vehicle (UAV) are provided. The device includes a measurement path planning unit, a UAV platform unit, a radiation signal acquisition unit, a data command processing unit, and a ground data processing unit. The measurement path planning unit, the radiation signal acquisition unit, and the data command processing unit each are suspended from the UAV platform unit by using a pod. The present disclosure applies to the radiation pattern measurement of an outdoor antenna.

Abstract: A molding device and a molding method for an optical fiber preform are provided. The molding device includes a rotating mechanism, an extrusion mechanism, and a cylinder mold that is of a cylindrical structure with two ends each having an opening. After a hollow cladding sleeve is obtained by rotating the cylinder mold through the rotating mechanism, a molten core glass is then reversely extruded into the cladding sleeve in the cylinder mold from bottom to top by the extrusion mechanism to prepare the optical fiber preform.

Abstract: The disclosure includes an intelligent automatic control system for mine gas chromatographs, comprising a CPU. The system may comprise a touch screen coupled to the CPU, a computer and a relay unit electrically coupled to the CPU, and a remote transmission module and a remote mobile control terminal communicatively coupled to the CPU. A digital output terminal may be electrically coupled through the relay unit to a component selected from the group consisting of a solenoid valve, at least one heater, a chromatograph motor, a six-way injection valve, a ten-way injection valve, a chromatograph automatic injection pump, FID ignition coils, a TCD bridge solenoid valve, at least one gas generator solenoid valve, and a standard gas/sample gas conversion valve. The system may comprise at least one temperature sensor, at least one gas pressure sensor, a TCD bridge module, and at least one pressure-controlling switch electrically coupled to the CPU.

Abstract: A method and a device for measuring a four-dimensional (4D) radiation pattern of an outdoor antenna based on an unmanned aerial vehicle (UAV) are provided. The device includes a measurement path planning unit, a UAV platform unit, a radiation signal acquisition unit, a data command processing unit, and a ground data processing unit. The measurement path planning unit, the radiation signal acquisition unit, and the data command processing unit each are suspended from the UAV platform unit by using a pod. The present disclosure applies to the radiation pattern measurement of an outdoor antenna.

Abstract: The invention discloses a charging state analysis method of a electric vehicle based on electrical characteristic sequence analysis. The method includes following steps: step S1, obtaining voltage sampling data and current sampling data of the electric vehicle during charging; step S2, setting a time interval, so as to divide the voltage sample data and the current sampling data obtained in step S1 into multiple data sets; step S3, calculating an electrical characteristic vector of each time interval; step S4. adding the calculation results of Step S3 to a temperature sensing value T, and generate an electrical characteristic sequence of whole charging cycle; step S5, inputting the electrical characteristic sequence of the electric vehicle into a trained Time Recurrent Neural Network (TRNN) in sequence to obtain corresponding results; if the result is 1, it means normal; if the result is 0, it means abnormal.

Abstract: The disclosure includes an intelligent automatic control system for mine gas chromatographs, comprising a CPU. The system may comprise a touch screen coupled to the CPU, a computer and a relay unit electrically coupled to the CPU, and a remote transmission module and a remote mobile control terminal communicatively coupled to the CPU. A digital output terminal may be electrically coupled through the relay unit to a component selected from the group consisting of a solenoid valve, at least one heater, a chromatograph motor, a six-way injection valve, a ten-way injection valve, a chromatograph automatic injection pump, FID ignition coils, a TCD bridge solenoid valve, at least one gas generator solenoid valve, and a standard gas/sample gas conversion valve. The system may comprise at least one temperature sensor, at least one gas pressure sensor, a TCD bridge module, and at least one pressure-controlling switch electrically coupled to the CPU.

Abstract: A method of reducing host nucleic acids in a biological sample and a use thereof, which belong to the technical field of gene detection is provided. The method includes the steps of a) performing pre-treatment for the biological sample under a mild condition with partial lysis and/or no lysis of host cell membrane, thereby obtaining a liquid sample; and b) taking the liquid sample followed by adding a nucleic acid digestion reagent, thereby degrading the host nucleic acid which is exposed in the liquid sample. The method is used for reducing host nucleic acids in a biological sample and non-selectively enriching the targets, such as bacteria, fungi, viruses, mycoplasma/chlamydia.

Abstract: An electronic device (100) and a driving method therefor. The color resistance and the thickness of a black matrix in a first area (120), at a corresponding position of a light-transmitting area (110), of a color film substrate (102) are smaller than color resistance and the thickness of the black matrix outside the first area (120), a backlight module (20) is provide with a through hole (210) opposite to the light-transmitting area (110), and a photographing module (30) and the through hole (210) are oppositely provided, so that external light rays can be obtained by means of the through hole (210) and the light-transmitting area (110), thus under-screen photographing is achieved, and 100% full-screen design is satisfied.

Abstract: A cache memory device is provided in the disclosure. The cache memory device includes a first AGC, a compression circuit, a second AGC, a virtual tag array, and a comparator circuit. The first AGC generates a virtual address based on a load instruction. The compression circuit obtains the higher part of the virtual address and generates a target hash value based on the higher part of the virtual address. The second AGC generates the lower part of the virtual address based on the load instruction. The virtual tag array obtains the lower part and selects a set of memory units. The comparator circuit compares the target hash value to a hash value stored in each memory unit of the set of memory units. When the comparator circuit generates the virtual tag miss signal, the comparator circuit transmits the virtual tag miss signal to the reservation station.

Abstract: The disclosure includes a gas chromatograph for underground use comprising a fixing board. In some embodiments, the gas chromatograph for underground use includes a power connection socket, at least one three-way solenoid valve, a quantitative loop, an analysis module, a communication main board, a data transmission device, a sample injection membrane valve, and a gas injection pump detachably coupled to the fixing board. In some embodiments, the quantitative loop and the sample injection membrane valve are arranged and configured to couple to at least one of the at least one three-way solenoid valves.

Abstract: The disclosure includes a gas analysis system comprising a control system. In some embodiments, the control system comprises a computer monitoring host, an underground coal mine gas circuit control box including an intrinsically safe PLC, a sampling pump electrically coupled to the remote power control, an explosion proof safety power box electrically coupled to the intrinsically safe optical fiber switch, and an intrinsically safe gas chromatograph electrically coupled to the intrinsically safe optical fiber switch and the flameproof and intrinsically safe power box. In some embodiments, the gas analysis system comprises a gas pipeline system having an instrument sequence tube coupled to the carrier gas output pressure sensor, the carrier gas proportional solenoid valve, the carrier gas path pressure sensor, a manual carrier gas pressure reducing valve, and a carrier gas storage.

Abstract: A call switching method and apparatus, a storage medium and a mobile terminal. The method comprises: when a first call module receives a call request of a first call type, triggering a second call module to query whether a call of a second call type is being executed; if a call of the second call type is currently being executed, the first call module generating prompt information; and when a first user instruction of a user is detected, switching the current call from the call of the second call type to a call of the first call type.

Abstract: Disclosed are a video call switching method, a storage medium and a terminal. The method comprises: upon receiving a video call request initiated by a caller terminal and in a video call state, acquiring a first communication type of the current video call and a second communication type of a video call initiated by the caller terminal; if the first communication type is different from the second communication type, giving a prompt of the video call request initiated by the caller terminal; and when a response operation for the video call request is received, switching the current video call to the video call of the second communication type.