Abstract: A display panel has a plurality of sub-pixel regions arranged in an array of a plurality of rows and a plurality of columns, and a light-shielding region that separates the sub-pixel regions and surrounds all the sub-pixel regions as a whole. The display panel includes: a first substrate; a light-shielding pattern layer located on the first substrate, the light-shielding pattern layer being located in the light-shielding region and covering part of the light-shielding region; a second substrate disposed opposite to the first substrate; and a light-shielding structure layer located on the second substrate, the light-shielding structure layer covering at least a region of the light-shielding region that is not covered by the light-shielding pattern layer.

Abstract: A method for preparing nanomaterial macroscopic composites through substrate heating and solvent evaporation is provided, and the method includes setting a substrate, and preparing a reaction precursor solution required for the synthesis of nanomaterials; evenly dropping a small volume of the precursor solution on/in the substrate; performing a heating method to make the substrate generate a heat and transferring the heat to the precursor solution on/in the substrate; after a period of time, terminating the heating of the substrate to finish the synthesis, removing and cleaning the substrate, thus obtaining corresponding nanomaterial macroscopic composites.

Abstract: A content delivery network-oriented method of displaying an information is provided, which may be applied to a field of Internet technology, and in particular to a field of content delivery network technology. The method includes: acquiring a business configuration information in response to a detection that a configuration control on a display page is triggered, where the business configuration information includes a business domain name and a configuration parameter; acquiring a task information in response to an operation for an abnormal resource information being detected, where the abnormal resource information is determined according to the business domain name and the configuration parameter; and displaying a processing result for the abnormal resource information according to the task information.

Abstract: A method for calculating carbon emissions of oil-immersed power transformer. The method includes: obtaining operation data of the oil-immersed power transformer; determining input parameters according to the operating data; the input parameters include: a load power P of the oil-immersed power transformer, a three-phase current balance ?, and a harmonic distortion rate THD; obtaining a top oil temperature Ttop of the oil-immersed power transformer; determining an average temperature Twnd and a temperature correction coefficient Ktemp of a winding of the oil-immersed power transformer according to the top oil temperature Ttop; determining an electrical energy loss S of the oil-immersed power transformer based on the input parameters, the average temperature Twnd, and the temperature correction coefficient Ktemp; determining the carbon emission G of the oil-immersed power transformer according to the electrical energy loss S.

Abstract: A nanoparticle drug based on a small interfering RNA (siRNA) targeting JFK and use thereof are provided. Nucleotide sequences of the sense strand and the antisense strand of the siRNA targeting JFK are set forth in SEQ ID NO: 1 and SEQ ID NO: 2, respectively. Liposomes can be used to encapsulate the complex of the siRNA and a protamine to produce a nanoparticle drug targeting JFK, which may be used to treat a disease related to abnormally-high expression of JFK. In this disclosure, breast cancer 4T1 cell-based tumor-bearing mice serve as the model for evaluating the anti-tumor activity of combined therapy involving the nanoparticle drug targeting JFK and radiotherapy. The results reveal that this combined therapy exhibits superior anti-tumor activity compared to the control group.

Abstract: The present invention provides a downhole hydraulic directional control valve, comprising a valve body assembly having a shell, an outer tube being provided in the shell, a middle joint connecting the outer tube and an upper cylinder, an outer cylinder connected to the upper cylinder, and a double-way joint being provided with an oil inlet hole, and connecting top ends of the outer cylinder and an inner cylinder; a valve core assembly having an upper valve core, and a lower valve core being positioned at bottom end of the upper valve core and further positioned in a lower cylinder at bottom end of the middle joint; and, a plunger assembly having a first plunger part positioned in the inner cylinder and a second plunger part at bottom end of the first plunger part. By using this valve, the operation efficiency is improved, and the reliability of the equipment is ensured.

Abstract: A preparation method for a large crystal region high crystallinity carbonaceous fiber, where a wet spinning method is mainly used to assemble graphene oxide and other polymer materials in liquid phase, a two-dimensional graphene oxide sheet performs a “template orienting effect” on polymer molecules, making the directional crystallization of polymer molecules, resulting in fiber with high orientation and crystallinity. Graphene sheet catalyzes pyrolyzed molecules through a “graphitization inducing effect” to directionally generate graphene-like carbon layers after following high temperature treatment, thereby promoting stacking behavior of graphene sheets, and a composite carbonaceous fiber with an optimal crystallinity is prepared. The graphene fiber material prepared by the present method has characteristics of low cost, high crystallinity and high performance, and can be applied to a field of lightweight structural materials.

Abstract: A driving control apparatus, a driving control method and a display apparatus. When a display panel is in a power-on state and it is determined that a user leaves the display panel, a backlight stop signal (VBN) is first output, and a voltage stop signal (VPN) is then output. A backlight control circuit (320) stops operating in response to the backlight stop signal. In response to the voltage stop signal, a power switching circuit (330) stops outputting a driving voltage for driving the display panel to display a picture. When determining that the user returns to the front of the display panel, a voltage start signal (VPQ) can first be output, and a backlight start signal (VBQ) is then output. The backlight control circuit starts to operate in response to the backlight start signal. The power switching circuit outputs the driving voltage in response to the voltage start signal.

Abstract: A gap caulking device and a caulking method are provided, wherein the gap caulking device includes long plates, short plates, a dial plate, a three-way joint, a tensioner and a limit rod, and a closed quadrilateral structure with an adjustable angle is formed by two long plates hinged to each other and two short plates hinged to each other, a dial plate and a pointer are respectively provided on the two short plates, damping rods hinged on the two short plates to each other and a three-way joint matched with the two long plates are passed through by a limit rod to achieve connection limiting, and a shape memory alloy wire is connected to the three-way joint by a tensioner and is parallel to the limit rod. The problem is overcome that the original traditional wedge-shaped material that gaps rely on has a single filling function.

Abstract: The present application provides a pavement technical condition detection method and device based on a three-dimensional contour. The method includes: acquiring three-dimensional contour data and grayscale data of a pavement on the basis of a line scanning three-dimensional measurement sensor; preprocessing the three-dimensional contour data and the grayscale data, where the preprocessing includes performing three-dimensional modeling according to the three-dimensional contour data to acquire three-dimensional modeling data and correcting the grayscale data; and extracting a key contour of each cross section in the three-dimensional modeling data, and performing pavement technical condition index detection on the pavement according to the three-dimensional modeling data, the key contour, and the corrected grayscale data to acquire a technical condition index of the pavement.

Abstract: Provided herein are biotechnology reagents provided with a poloxamer excipient. In particular, haloalkane-linked fluorophores are provided in solution or a lyophilized formulation with a poloxamer that allows for storage, accurate dispensing/measurement, reconstitution, and addition to complex biological samples without the requirement of organic solvents.

Abstract: The present invention discloses a construction method of 3D printing and weaving integrated building, comprising: selecting basic building structural components, using finite element analysis after spatial modeling, and combining stress nephogram to set a discrimination domain value and optimize a structure space, obtaining a structural component skeleton; calculating and analyzing the structural component skeleton, determining a weaving range and weaving density of a wire according to weak areas and sizes under structural stress; and then determining a printing process and weaving process according to the structural component skeleton, the weaving range and the weaving density; preparing 3D printing material; 3D printing a matrix and weaving the wire according to the printing process and weaving process, constructing layer by layer, or printing segments, and then connecting segments by preset tenoning structural sections to form a 3D printing and weaving integrated building.

Abstract: Disclosed is a nighttime cooperative positioning method based on an unmanned aerial vehicle (UAV) group, falling within the technical field of aircraft navigation and positioning. According to the present disclosure, the cooperative visual positioning and the collision warning for UAVs are realized by means of light colors of the UAVs, respective two-dimensional turntable cameras and a communication topology network, without adding additional equipment and without relying on an external signal source, avoiding external interference. Compared with the positioning method in a conventional manner, in the present disclosure, the system is effectively simplified, and the cooperative positioning among the interiors of a UAV cluster can be realized relatively simply and at a low cost to maintain the formation of the UAV group.

Abstract: A programming building block includes an instruction reading building block and an instruction building block. The instruction reading building block reads command instructions in the instruction building block. The command instructions include an instruction for setting a mode, an instruction for setting a behavior in the mode, an instruction for setting a behavior, or an upgrade instruction. A priority is set between the plurality of instructions for setting the mode. Compared with the prior art, the present invention has the advantage that programming can be performed without an electronic display device.

Abstract: Disclosed is a nighttime cooperative positioning method based on an unmanned aerial vehicle (UAV) group, falling within the technical field of aircraft navigation and positioning. According to the present disclosure, the cooperative visual positioning and the collision warning for UAVs are realized by means of light colors of the UAVs, respective two-dimensional turntable cameras and a communication topology network, without adding additional equipment and without relying on an external signal source, avoiding external interference. Compared with the positioning method in a conventional manner, in the present disclosure, the system is effectively simplified, and the cooperative positioning among the interiors of a UAV cluster can be realized relatively simply and at a low cost to maintain the formation of the UAV group.

Abstract: A double-Flash switching device and a server is provided by the present application. The device includes: a target chip; a first Flash chip and a second Flash chip, wherein they are individually burnt with a firmware of the target chip, and are connected to the target chip by using a bus; a jumper cap, wherein the jumper cap has a first pin, a second pin and a third pin, the first pin is connected to an enabling pin of the first Flash chip, the second pin is connected to ground, and the third pin is connected to an enabling pin of second Flash chip; and an insulated-gate-type field-effect transistor, wherein two different electrodes of the insulated-gate-type field-effect transistor are connected to first pin and third pin, and insulated-gate-type field-effect transistor is configured to be switched on or switched off to cause two different electrodes to have different electrical levels.

Abstract: An electrochemical apparatus includes a negative electrode, and the negative electrode includes a porous carbon material layer and a negative electrode active material layer, where the porous carbon material layer includes porous carbon material particles, each porous carbon material particle includes at least two types of pores among micropores, mesopores, and macropores, and the at least two types of pores communicate with each other, where a pore size of each micropore<2 nm, 2 nm?a pore size of each mesopore?50 nm, and 50 nm<a pore size of each macropore?500 nm.

Abstract: The present invention provides a method for preparing an aerogel based on plasticizing and foaming with solvent, and the aerogel material is prepared through plasticization with solvent and generation of in-situ bubbles. The method solves the difficult problem that the non-polymer is difficult to realize thermoplastic foaming, and has wide applicability. In addition, a lot of foaming agents can be uses for this method, and this method is easy to implement, and does not require a special drying process, so that the industrialization development of the porous aerogel is greatly promote.

Abstract: In a power factor correction PFC circuit control method and a PFC circuit, a control module determines that an alternating current on a single-phase input/output terminal is in a positive half cycle. The control module turns on or turns off switching transistors on the first bridge arm and the second bridge arm, to boost a first voltage at a first parallel connection point. The control module turns on a switching transistor on the third bridge arm when determining that the first voltage is equal to a voltage of a positive bus of the direct current module. A switching loss of the PFC circuit can be effectively reduced, and performance of the PFC circuit can be improved.

Abstract: A power supply circuit, a driving method thereof, a printed circuit board, a display module and a display apparatus are disclosed, which relates to a technical field of displaying. The power supply circuit includes a first power management chip and a second power management chip configured to be respectively connected with a display panel and provide different driving signals to the display panel, and the driving signals are configured for driving the display panel to display.