Abstract: The invention discloses a core-shell structured anionic nano microemulsion system, and preparation and application thereof. The system comprises an anionic Gemini surfactant, an oil phase material, a solubilizer and water; wherein the microemulsion has a core-shell structure, with the outer shell being an anionic Gemini surfactant, and the inner core being an oil phase material. The anionic Gemini surfactant is N,N,N?,N?-dodecyl tetrasubstituted diphenyl ether sulfonate having the structural formula: The anionic nano-microemulsion system of the present invention is homogeneous and transparent, has a spherical core-shell structure, has a nanometer size (3 to 40 nm) as droplets, has a narrow particle size distribution, is not easy to agglomerate, has good stability, and has an ultra-low interfacial tension and a capability of reducing viscosity of crude oil.

Abstract: The present invent belongs to the technical field of plating by sputtering coating forming materials, and particularly relates to a contact coating of an electrical connector. In the coating, chromium nitride is doped with precious metal elements.

Abstract: A mobile terminal includes a first display system, a second display system, and a foldable support frame. The support frame includes a first support frame, a second support frame, and a bending structure coupled to the first support frame and the second support frame. The first display system and the second display system are separately arranged on two opposite sides of the support frame. The support frame further includes a side frame fixedly coupled to the first support frame or the second support frame. After the first support frame and the second support frame are folded using the bending structure, the side frame is exposed outside an overlapping area of the first support frame and the second support frame. In addition, a sensor component is disposed on the side frame.

Abstract: A wear-resistant super-hydrophobic protective coating for a substrate includes a pretreated surface and a composite coating. The composite coating is formed of a mixture of a ZrO2 powder, a PTFE powder and a silicone powder by spraying. A method for preparing the protective coating on a substrate is also provided.

Abstract: Provided are a motor rotation angle measurement device and method. The device may comprise: a signal conditioning circuit, configured to receive a three-phase output voltage of a motor and separately generate three square-wave signals; and a processor, configured to generate a six-multiplying frequency pulse whenever jumping of any one of the three square-wave signals, is detected in a rotation period of a motor, generate compensation pulses between the current six-multiplying frequency pulse and a next six-multiplying frequency pulse based on a time interval between the current six-multiplying frequency pulse and a previous six-multiplying frequency pulse and a preset compensation subdivision coefficient k, and accumulate the number of the compensation pulses, wherein the number of the compensation pulses is related to the rotation angle of the motor.

Abstract: Provided are a seven-speed double clutch transmission and a vehicle. The seven-speed double clutch transmission includes: an outer input shaft and an inner input shaft, a 4/6-speed driving gear and a 2-speed driving gear are sequentially fixed on the outer input shaft, and a 1-speed driving gear, a 3-speed driving gear and a 5/7-speed driving gear are sequentially fixed on the inner input shaft; and a first output shaft and a second output shaft, a 4-speed driven gear, a 2-speed driven gear, a 1-speed driven gear and a 5-speed driven gear, are sequentially fixed on the first output shaft, and a 6-speed driven gear, a reverse gear, a reverse gear synchronizer, a 3-speed driven gear and a 7-speed driven gear are sequentially fixed on the second output shaft.

Abstract: A double-drum linkage winding type hoisting system includes a first hoisting drum and a second hoisting drum. The first hoisting drum and the second hoisting drum are engaged and linked through engagement structures on outer circumferences of the first hoisting drum and the second hoisting drum or are linked through a linkage intermediate member. A first hoisting rope is wound around the first hoisting drum. A second hoisting rope is wound around the second hoisting drum. The first hoisting rope and the second hoisting rope are not connected with each other.

Abstract: A method for forming a 3D memory device is provided. The method comprises forming a sacrificial layer on a substrate, forming an alternating dielectric stack on the sacrificial layer, forming a plurality of channel holes vertically penetrating the alternating dielectric stack and the sacrificial layer, and forming a first channel layer in each channel hole. The method further comprises forming a second channel layer on the first channel layer in each channel hole, such that a merging point of the second channel layer is higher than a bottom surface of the alternating dielectric stack. The method further comprises removing the sacrificial layer to form a horizontal trench, and forming a selective epitaxial growth layer in the horizontal trench.

Abstract: A method for forming a memory device includes providing an initial semiconductor structure, including a base substrate; a first sacrificial layer formed on the base substrate; a stack structure, disposed on the first sacrificial layer; a plurality of channels, formed through the stack structure and the first sacrificial layer; and a gate-line trench, formed through the stack structure and exposing the first sacrificial layer. The method also includes forming at least one protective layer on the sidewalls of the gate-line trench; removing the first sacrificial layer to expose a portion of each of the plurality of channels and the surfaces of the base substrate, using the at least one protective layer as an etch mask; and forming an epitaxial layer on the exposed surfaces of the base substrate and the plurality of channels.

Abstract: The present application relates to methods of producing exosomes. The application also provides a method for preparing a protein composition comprising culturing an exosome-producing cell expressing a Nef-fusion protein comprising a Nef-derived peptide fused to a protein of interest; isolating exosomes from the exosome-producing cell culture; and purifying the protein of interest from the isolated exosomes. The application further discloses compositions that comprise exosomes containing the Nef-fusion protein, as well as methods of using the Nef-fusion protein and exosomes containing the Nef-fusion protein.

Abstract: The invention discloses a core-shell structured non-ionic nanoemulsion system and the preparation and use thereof. The system comprises a non-ionic gemini surfactant, an oil phase material, a solubilizer, and water; wherein the microemulsion has a core-shell structure, with the outer shell being the non-ionic Gemini surfactant, and the inner core being the oil phase material. The non-ionic Gemini surfactant is di(octylphenol polyoxyethylene ether)-substituted dicarboxylic acid diphenyl ether having the structural formula: The non-ionic nanoemulsion system of the present invention is homogeneous and transparent, and has a spherical core-shell structure with nanometer-sized (3-40 nm) droplets, narrow particle size distribution, low tendency to agglomerate, good stability, and both an ultra-low interfacial tension and the ability to reduce viscosity of crude oil.

Abstract: Disclosed is an automatic flushing type pre-filtering device, that includes: a valve head set, a filter cartridge set, a movable rod piece, and a drain valve set. The filter cartridge set includes: a cylinder body; a filter cartridge, disposed in the cylinder body, the filter cartridge includes a filter net rack and a filter net disposed on the filter net rack. A first chamber is formed between the filter cartridge and the cylinder body, and a second chamber is formed inside the filter cartridge. The movable rod piece is provided with a hollow portion inside, and the movable rod piece is disposed in the second chamber. A water separation piece is disposed between the movable rod piece and the filter net rack. A plurality of through holes are disposed on the movable rod piece corresponding to a position of the second chamber.

Abstract: A mobile terminal includes a middle frame, a battery cover, and a display. A first groove and a second groove are provided on each of a left-side wall and a right-side wall of the middle frame, and the first groove and the second groove share a part of the side wall. The display is disposed in one of the first grooves, and the battery cover is disposed in one of the second grooves. The display includes an obverse-side display area and two arc-shaped display areas located on two sides of the obverse-side display area, indent surfaces of the two arc-shaped display areas are disposed opposite to each other, and a vertical distance between end portions of the two arc-shaped display areas that are away from the obverse-side display area is less than a maximum vertical distance between the two arc-shaped display areas.

Abstract: This application discloses a foldable display apparatus, including a flexible display screen and a bearer component, where the bearer component includes a first plane part, a first bending part, a second plane part, a second bending part, and a third plane part that are sequentially connected in a long side direction, a length of the first bending part in the long side direction is greater than a length of the second bending part in the long side direction, the plurality of parts jointly bear the flexible display screen, the third plane part is folded between the first plane part and the second plane part through bending and deformation of the first bending part and the second bending part, and parts, of the flexible display screen, borne by the first plane part and the second plane part are exposed.

Abstract: A rotating shaft connection mechanism includes two rotating shafts, two connection assemblies corresponding to the two rotating shafts, and one synchronous driving block, where each connection assembly includes a slide rail block and a drive sheet, a boss of the slide rail block is inserted into a slanting groove on the drive sheet, the synchronous driving block is connected to the two rotating shafts, and the synchronous driving block is disposed on two sides of a connecting piece on the drive sheet by using provided connecting pieces, and is inserted into a spiral groove by using a provided positioning protrusion part. In this way, through fitting connection between the two rotating shafts, the one synchronous driving block and the slide rail blocks and drive sheets of the two connection assemblies corresponding to the two rotating shafts, rotation of the rotating shaft is converted into sliding of the slide rail block.

Abstract: Disclosed is a use of a transport protein inhibitor in the preparation of a drug for preventing or treating diseases accompanied with increased PD-1 expression. The drug is capable of effectively reducing the expression of PD-1 in specific CD8+ T cells and enhancing the killing effect of specific CD8+ T cells on tumor cells.

Abstract: A target user directing method and apparatus and provided. The method includes determining a similarity between each of candidate users and a seed user by using a similarity model. A conversion prediction model is used to predict a probability that each of the candidate users performs a conversion operation on to-be-delivered information. One or more target users for the to-be-delivered information are selected from the candidate users according to the similarity that is determined and the probability that is predicted for each of the candidate users. The to-be-delivered information is transmitted to the one or more target users.

Abstract: A method for detecting pores on cell membrane using an atomic force microscope, comprising the steps of: providing cells; fixing the cells in place; and observing the cells by means of an atomic force microscope. The pores are present in the cell membrane or pass through the cell membrane. By means of the present method, the presence of pores in the cell membrane can be accurately observed, and the size and depth of the pores can be accurately determined.

Abstract: Methods, compositions, and kits are provided herein for CRISPER/Cas-mediated nucleic acid detection or modification.

Abstract: Presented herein is a quinochalcone compound that displays strong anti-cancer properties and provides for synergistic anti-cancer activity when used in combination with interferon ? (IFN-?) or interferon ? (IFN-?). Accordingly, compositions comprising a quinochalcone compound, or a quinochalcone compound and an interferon are disclosed herein for use in treating cancer. Also presented herein, in some embodiments, are methods of using a quinochalcone compound, and compositions thereof, to treat inflammation.