Abstract: The present disclosure relates to a multi-sandwich composite catalyst and a preparation method and application thereof. The present disclosure provides a preparation method of a multi-sandwich composite catalyst, comprises the following steps: sequentially depositing a first layer oxide, a first active metal, an oxide interlayer, a second active metal and a surface oxide on a template, and sequentially performing calcination and reduction, thereby obtaining a multi-sandwich composite catalyst; wherein the first active metal and the second active metal are different kinds of active metals. In the present disclosure, a multi-sandwich structure is formed by depositing the oxides and active metals alternately, so that the position and spacing distance of the active centers can be precisely controlled. The multi-sandwich composite catalyst prepared by the method provided described herein has a higher conversion than that of a catalyst without an interlayer when used for the catalytic reaction.

Abstract: A wastewater treatment equipment and a treatment method of a wastewater are provided. The wastewater treatment equipment includes: a microfiltration unit, configured to receive and filter a wastewater to obtain a solution; a membrane salt separation unit, configured to receive the solution and separate monovalent ions and multivalent ions from the solution to obtain a first solution including the monovalent ions and a second solution including the multivalent ions; a first evaporative crystallization unit, configured to crystallize the first solution to form a monovalent salt; and a second evaporative crystallization unit, configured to crystallize the second solution to form a mixed salt; the microfiltration unit is connected to the membrane salt separation unit, and the first evaporative crystallization unit and the second evaporative crystallization unit are both directly connected to the membrane salt separation unit, the wastewater treatment equipment can achieve the standard discharge of wastewater.

Abstract: The present invention provides a method and system for acquiring operating parameters of a photographic lens, including: a control circuit and a storage unit that are configured in the photographic lens, where the control circuit acquires an operating parameter of the photographic lens by using a focusing ring position sensor, a zoom ring position sensor, an aperture ring position sensor, an accelerometer and a gyro sensor; and the control circuit is further connected to a camera or an external data reading device by using a communication interface, to output the operating parameter after data encapsulation in real time.

Abstract: A device for double-sided processing through single shot peening includes: a shot peening system, a workpiece clamping mechanism for clamping a workpiece, and a rebound system. The workpiece is provided with a first through-hole, and the first through-hole directly faces a nozzle. The rebound system includes a reflecting surface, an open container, and a reflecting surface gripping unit. The reflecting surface includes an upper reflecting surface, a middle reflecting surface, and a lower reflecting surface. The middle reflecting surface is provided with a second through-hole. The upper reflecting surface and the lower reflecting surface are both made of flexible elastic materials and are both provided with waterproof layers. A partition plate is disposed in the open container and partitions the open container into a first cavity and a second cavity. The second cavity is provided with a filling liquid, and the partition plate is slidable in the open container.

Abstract: Disclosed herein are polypeptides having nuclease activity. Some of the polypeptides having nuclease activity were generated by an improved gene site mutagenesis (“GSSM”) method or the tailored multi-site combinatorial assembly (“TMCA”) method. Also disclosed are compositions and kits comprising the polypeptides having nuclease activity, and methods for making and using these polypeptides, compositions and kits.

Abstract: A lighting apparatus includes a rectifier, a 0-10V dimmer converter, a power circuit and a light source. The rectifier for receives an AC power from an AC input to generate a DC current. The TRIAC wall switch is selectively coupled to the AC input. The TRIAC wall switch is operated by a user with an first manual operation to suppress a portion of the AC power from the AC input corresponding to the first manual operation. The 0-10V dimmer converter is selectively coupled to a 0-10V dimmer. The 0-10V dimmer converts a dimmer voltage of the 0-10V dimmer to a dimmer signal corresponding to a second manual operation of the user. The power circuit is coupled to the 0-10V dimmer converter and the rectifier to convert the DC current to a set of driving current. The light source includes multiple LED modules.

Abstract: A foldable electronic device module includes: a glass-containing cover element having a thickness from about (25) ?m to about (200) ?m, an elastic modulus from about (20) to (140) GPa, and first and second primary surfaces; a stack comprising: (a) an interlayer having an elastic modulus from about (0.01) to (10) GPa and a thickness from about 50 to (200) ?m, and (b) a flexible substrate having a thickness from about (100) to (200) ?m; and a first adhesive joining the stack to the cover element, and comprising an elastic modulus from about (0.001) to (10) GPa and a thickness from about (5) to (25) ?m. Further, the module comprises an impact resistance characterized by tensile stresses of less than about (4100) MPa and less than about (8300) MPa at the first and second primary surfaces of the cover element, respectively, upon an impact in a Pen Drop Test.

Abstract: A semiconductor device includes a semiconductor element, a conducting member, a conductive bonding material, a resin member and a first barrier layer. The semiconductor element includes an element first surface and an element second surface facing away from each other in a thickness direction, with the element first surface provided with an electrode. The conducting member includes an obverse surface facing the element first surface and a reverse surface facing away from the obverse surface. The conductive bonding material is disposed between the electrode and the obverse surface of the conducting member. The resin member covers at least a portion of the conducting member, the semiconductor element and the conductive bonding material. The first barrier layer is disposed between the electrode and the conductive bonding material to prevent a reaction between the electrode and the conductive bonding material.

Abstract: The present application is related to a method for identifying whether porcine heparin is adulterated with heparin from ruminants, comprising: (1) respectively detecting the contents of trisaccharide(4S) and ?UA2S-GlcNAc6S (?IA) in a sample and at least three batches of porcine heparin standards; (2) calculating a ratio of the trisaccharide(4S) to the ?IA as well as a standard deviation (SD) of the ratio in the porcine heparin standards; when the ratio of the trisaccharide(4S) to the ?IA in the sample exceeds a maximum value of the ratio in the porcine heparin standards+3SD, where the sample is considered to be mixed or adulterated with heparin from ruminants; wherein the detection method used is hydrophilic interaction liquid chromatography-mass spectrometry (HILIC-MS) or multiple reaction monitoring (MRM). The method can distinguish porcine heparin from ovine and bovine heparin based on the structural differences, regardless of the production process the heparin has undergone.

Abstract: The present application provides a gate driving unit circuit and a method of driving the same, a gate driving circuit and a display apparatus. The gate driving unit circuit includes a shift register and a plurality of driving signal output sub-circuits. Each driving signal output sub-circuit corresponds to one of gate lines on an array substrate, is coupled to a first power supply terminal and a signal output terminal of the shift register, and also coupled to a corresponding one of driving scan signal lines. Each driving signal output sub-circuit is configured to output, under the control of a signal output by the signal output terminal of the shift register, a driving scan signal provided by the corresponding driving scan signal line or an OFF voltage provided by the first power supply terminal to the corresponding gate line.

Abstract: A method for preparing an ammonium thiomolybdate-porous amorphous carbon composite superlubricity film is disclosed. First, a porous amorphous carbon film is prepared by an anode layer ion source assisted plasma chemical vapor deposition method and a reactive magnetron sputtering method on a substrate. The porous amorphous carbon film is then impregnated in an ammonium thiomolybdate solution, so that the ammonium thiomolybdate is adsorbed on the porous amorphous carbon film, and the impregnated porous amorphous carbon film is air dried.

Abstract: The present application discloses a method and an apparatus for detecting wearing of a safety helmet, a device and a storage medium. The method for detecting wearing of a safety helmet includes: acquiring a first image collected by a camera device, where the first image includes at least one human body image; determining the at least one human body image and at least one head image in the first image; determining a human body image corresponding to each head image in the at least one human body image according to an area where the at least one human body image is located and an area where the at least one head image is located; and processing the human body image corresponding to the at least one head image according to a type of the at least one head image.

Abstract: Proposed are a display substrate, a control method thereof and a wearable display device. The display substrate includes M rows and N columns of pixels and 2M rows of scanning lines, a first sub-pixel and a second sub-pixel of pixels in an i-th row are connected to the same scanning line and electrically connected to one of a (2i?1)-th row of scanning line and a 2i-th row of scanning line, and a third sub-pixel of the pixels in the i-th row is electrically connected to the other of the (2i?1)-th row of scanning line and the 2i-th row of scanning line; when the display substrate is displaying, a first sub-pixel, a second sub-pixel and a third sub-pixel among two pixels located in a (2i?1)-th row, a j-th column, and a 2i-th row, a j-th column emit light at an i-th stage of each frame.

Abstract: Provided is an electronic apparatus including an electronic part, a resin member that covers the electronic part, and a plurality of leads each electrically connected to the electronic part, the resin member including a first resin side surface facing one side in a first direction orthogonal to a thickness direction of the resin member, the plurality of leads including a plurality of first side exposed portions arranged along the first resin side surface, each of the plurality of first side exposed portions being exposed from the first resin side surface, each of the plurality of first side exposed portions including a first tapered portion becoming narrower toward the first resin side surface as viewed in the thickness direction, the first tapered portion including a first front surface that faces the same direction as the first resin side surface in the first direction and is flush with the first resin side surface.

Abstract: A device for double-sided processing through single shot peening includes: a shot peening system, a workpiece clamping mechanism for clamping a workpiece, and a rebound system. The workpiece is provided with a first through-hole, and the first through-hole directly faces a nozzle. The rebound system includes a reflecting surface, an open container, and a reflecting surface gripping unit. The reflecting surface includes an upper reflecting surface, a middle reflecting surface, and a lower reflecting surface. The middle reflecting surface is provided with a second through-hole. The upper reflecting surface and the lower reflecting surface are both made of flexible elastic materials and are both provided with waterproof layers. A partition plate is disposed in the open container and partitions the open container into a first cavity and a second cavity. The second cavity is provided with a filling liquid, and the partition plate is slidable in the open container.

Abstract: Long-chain non-coding RNA are used in the preparation of drugs for the treatment of Fuchs' endothelial corneal dystrophy. Overexpression of the long-chain non-coding RNA NEAT1 can effectively reduce corneal endothelial damage, alleviate the symptoms of corneal edema, can be used for the treatment of Fuchs' endothelial corneal malnutrition.

Abstract: Disclosed in the present invention are a starch-embedded aroma substance microcapsule and a preparation method therefor. The method comprises: performing degreasing treatment on starch, gelatinizing the starch at high temperature, sequentially adding aroma substances having different molecular sizes into the starch paste, and compounding at high temperature; and finally, cooling, centrifuging, washing, and drying to obtain an aroma substance microcapsule. The total embedding rate of the aroma substances in the obtained microcapsule can reach 46.64%. The present invention is simple and convenient in process, and easy in condition control, does not need large special equipment, and has low cost and high efficiency.

Abstract: A wearable device (100) includes a body (1) and a detection electrode (21). The body (1) includes an electrocardiosignal collection circuit (11), and an inner electrode (12) and an outer electrode (13) that are electrically connected to the electrocardiosignal collection circuit (11). The inner electrode (12) is configured to collect an electric potential signal of a first wearing position (200), and the outer electrode (13) is configured to collect an electric potential signal of a non-wearing position (300). The detection electrode (21) can move relative to the body (1), and the detection electrode (21) is configured to electrically connect to the electrocardiosignal collection circuit (11) and collect an electric potential signal of a second wearing position (400). The non-wearing position (300) and the second wearing position (400) are different from the first wearing position (200). The wearable device (100) can measure electrocardiosignal data in time.