Abstract: Microelectronic integrated circuit package structures include a first die and a second die both coupled to a bridge structure at an interface. A first thermally conductive mold material is on a first side of the interface and surrounds the first die and the second die. A second mold material is on a second, opposing side of the interface and surrounds the bridge structure.

Abstract: Disclosed is a system for realizing rapid degradation of halogenated organic pollutants in water. The system comprises a hydrodehalogenation reactor, an advanced oxidation reactor, a hydrogen gas supply unit and a control unit. The system for realizing rapid degradation of halogenated organic pollutants in water comprises a hydrodehalogenation reactor, an advanced oxidation reactor, a hydrogen gas supply unit, and a control unit.

Abstract: A virtual reality space-based display processing method, apparatus, device and medium. The method includes: in response to an operation of a user entering a virtual reality space, presenting virtual reality video information in a virtual screen in the virtual reality space; and respectively displaying a plurality of layers in a plurality of spatial position areas in the virtual reality space, wherein all the plurality of spatial position areas are at different display distances from the current viewing position of the user and are located in front of the virtual screen.

Abstract: The present disclosure, in some aspects, is directed to methods of making cysteine source solutions comprising a thiazolidine. In certain other aspects, the present disclosure is directed to methods of using the cysteine source solutions (such as in making a cell culture medium, performing cell culture, and/or producing a polypeptide), and systems and kits comprising the cysteine source solutions.

Abstract: The present disclosure relates to the technical field of computers, in particular to an information interaction method and apparatus, and an electronic device and a storage medium. The information interaction method provided in the embodiments of the present disclosure includes determining a moving end point of a target message, which is sent first, among two or more continuously sent target messages; determining moving end points of the remaining target messages among the two or more target messages on the basis of the moving end point of the target message which is sent first; and on the basis of the determined moving end points of the target messages, sending corresponding target messages.

Abstract: The provided is a test system of a rock mass for seepage coupling and permeability testing under deep complex conditions. The test system includes: a seepage medium supply module, a seepage coupling module, a transient method test module, and a steady-state method test module, where the seepage medium supply module is configured to provide a seepage medium or a purging medium to the test system; the seepage coupling module is a rock mechanics testing machine; the transient method test module is configured to calculate permeability of a specimen by measuring a change in a pressure difference between an inlet and an outlet of a triaxial chamber of the rock mechanics testing machine, and is suitable for a low-permeability medium; and the steady-state method test module is configured to test a flow rate at the outlet of the triaxial chamber of the rock mechanics testing machine based on a steady-state method.

Abstract: The present disclosure relates to the technical field of computer, and in particular, an information interaction method, device, electronic apparatus and storage medium. According to an embodiment of the present disclosure, there is provided an information interaction method, including: displaying a virtual reality space, the virtual reality space including a video image display space and a target message display space; displaying a video image in the video image display space; determining a target message and displaying the target message in the target message display space; wherein the target message display space is located in front of the video image display space in a first direction, the first direction being a direction toward which the video image faces.

Abstract: An information interaction method, an electronic device, and a storage medium are provided. The method includes: displaying a virtual reality space, the virtual reality space including a video image display space for displaying a video image; determining a target message in response to a message sending operation; determining a message movement start point of the target message based on the message sending operation; and moving the target message in the virtual reality space based on the message movement start point.

Abstract: A photosensitive DNA polymerase, use method and use thereof, relate to the technical field of enzyme engineering, and address the technical problems of providing a protein and converting same into the photosensitive DNA polymerase. The protein has the amino acid sequence set forth in SEQ ID NO: 3, where X is pAzF, an amino group of the pAzF is linked via a peptide bond to a carboxyl group of lysine at position 4 in SEQ ID NO: 3, and a carboxyl group of the pAzF is linked via a peptide bond to an amino group of histidine at position 5 in SEQ ID NO: 3.

Abstract: Provided is a composite binder for an electrode sheet, and a preparation method for and a use of the composite binder. The composite binder for an electrode sheet uses both a fluorine-containing polymer and an aromatic polyamide. Compared with using a fluorine-containing polymer alone, the strength of the composite binder of the present application is enhanced, the peeling strength of the battery electrode sheet is higher, and the electrolyte infiltration effect is better. Compared with using aromatic polyamide alone, the moisture content of the battery electrode sheet is lower, the hygroscopicity is reduced, and the internal resistance of a battery cell is also lower. That is, the composite binder for an electrode sheet of the present application can have both the advantages of good electrochemical performance of the fluorine-containing polymer and high bonding strength of the aromatic polyamide, and the use cost of the binder is also reduced.

Abstract: Provided are a composite solid electrolyte layer and a preparation method thereof. The preparation method includes: step S1, coating a solid electrolyte raw material on two side surfaces of an aramid base film, so as to obtain a composite solid electrolyte layer precursor; step S2, covering a release film on at least one side surface of the composite solid electrolyte layer precursor, so as to obtain a first laminated structure; and step S3, performing a first hot rolling treatment on the first laminated structure, and then peeling off the release film to obtain a composite solid electrolyte layer. In the present disclosure, the solvent-free solid electrolyte raw material is used for coating, such that the problem of solvent residues is solved. The introduction of the aramid base film can provide a skeleton for the preparation of the composite solid electrolyte layer precursor. The introduction of the release film can serve to protect the composite solid electrolyte layer precursor.

Abstract: An image sensor is provided. The image sensor includes pixel groups, and each pixel group includes white pixels, infrared pixels and a shared circuit. The pixels share a floating diffusion node for selectively transferring an electric charge stored therein. The shared circuit connects the floating diffusion node for converting the electric charge of each white and infrared pixel to a corresponding pixel value based on the first or second conversion gain. In a first mode, one white pixel is read as a first pixel value in a first period and one infrared pixel is read as a third pixel value in a third period based on the first conversion gain; the other one white pixel is read as a second pixel value in a second period and the other one infrared pixel is read as a fourth pixel value in a fourth period based on the second conversion gain.

Abstract: Disclosed is a zoom lens, including: a lens barrel, a lens group, a linear magnetic driving mechanism, and a locking structure; the lens barrel extends in a front-to-rear direction; the lens group includes at least one mobile group movably provided in the lens barrel along the front-to-rear direction; the linear magnetic driving mechanism is provided in the lens barrel and drivenly connected to the mobile group; and the locking structure includes a locking member and a locking mechanism, the locking member includes a plurality of locking grooves, and the locking mechanism includes: a latch, an electromagnetic driving mechanism and a reset member; the latch is movably provided in a direction approaching and away from each locking groove, the latch has a locking position inserted into the locking groove and an unlocking position separated from the locking groove during a moving stroke.

Abstract: A radio frequency device includes a substrate, an epitaxial structure, a first electrode, a second electrode, a gate structure, a metal bulk, an auxiliary metal bulk, and a metal connection line. The first/second electrode includes a first/second electrode body and first/second electrode fingers. The gate structure includes a sub-gate having parallel portions and vertical portions alternately connected to one another in series to form a serpentine shape. The auxiliary metal bulk is arranged between corresponding adjacent two parallel portions and between a corresponding vertical portion and an end of a corresponding first electrode finger. The metal bulk is arranged between the auxiliary metal bulk and the vertical portion corresponding to the auxiliary metal bulk. The metal connection line connects the metal bulk to the second electrode body and is insulated from the sub-gate. A radio frequency front-end apparatus including the radio frequency device is also disclosed.

Abstract: The provided is a torsion compensation system and a compensation method for a FBG curvature sensor. The compensation system includes a FBG curvature sensor, installed on a scraper conveyor; angle sensors, including two and installed on both sides of the FBG curvature sensor, are configured to obtain the torsion angle of the FBG curvature sensor by monitoring the difference between the two ends of the FBG curvature sensor; a FBG string, arranged on the FBG curvature sensor to form a plurality of grating measuring points, is configured to perceive the center wavelength of the FBG curvature sensor; a FBG demodulator, coupled with the FBG string, is configured to convert the optical signal of the center wavelength perceived by the FBG string into an electrical signal; a computer, respectively coupled with the angle sensors and the FBG demodulator, is configured to eliminate the FBG wavelength variation caused by torsion.

Abstract: The provided is a torsion compensation system and a compensation method for a FBG curvature sensor. The compensation system includes a FBG curvature sensor, installed on a scraper conveyor; angle sensors, including two and installed on both sides of the FBG curvature sensor, are configured to obtain the torsion angle of the FBG curvature sensor by monitoring the difference between the two ends of the FBG curvature sensor; a FBG string, arranged on the FBG curvature sensor to form a plurality of grating measuring points, is configured to perceive the center wavelength of the FBG curvature sensor; a FBG demodulator, coupled with the FBG string, is configured to convert the optical signal of the center wavelength perceived by the FBG string into an electrical signal; a computer, respectively coupled with the angle sensors and the FBG demodulator, is configured to eliminate the FBG wavelength variation caused by torsion.

Abstract: A distributed optical fiber monitoring system for failure monitoring of a deep rock mass is applied to an underground chamber and can simultaneously monitor failure signals in axial and radial directions of the underground chamber, facilitating three-dimensional positioning of a failure source. The distributed optical fiber monitoring system includes a first optical fiber and a second optical fiber. The first optical fiber is deployed on a chamber wall along the axial direction of the underground chamber to monitor the failure signal distributed along the axial direction of the underground chamber. The second optical fiber mainly includes a peripheral optical fiber segment and a direction-changing transition segment. The peripheral optical fiber segment is deployed on the chamber wall along a cross-sectional profile of the chamber wall to monitor the failure signal distributed along the radial direction of the underground chamber.

Abstract: A preparation method comprises: preparing a green body using green body powder; applying an overglaze on the surface of the green body; ink-jet printing a pattern on the surface of green body; applying a protective glaze on the surface of the green body; applying an anti-counterfeiting material on the surface of the green body; firing the green body, titanite and high-refractive-index oxide being wetted and wrapped by a molten liquid produced by melting a low-temperature glaze powder in a firing environment, and sunken into the protective glaze without generating opacification; and then polishing to obtain a ceramic plate having an anti-counterfeiting visual effect. The anti-counterfeiting visual effect is a visual effect in which a high-intensity refraction effect is achieved when the sight line direction is consistent with the path of reflected light, but no refraction effect is achieved when the sight line direction deviates from the path.

Abstract: The invention discloses method of improving AUV wireless communications systems, including steps of: collecting the channel frequency response and receiving signal data in the electromagnetic environment where AUV works on the water surface,; constructing a multi-dimensional feature aggregation network model based on self-attention mechanism; training a multi-dimensional feature aggregation network; and preprocessing received AUV signals to obtain improved input data. The network model completed by offline training is loaded, and the input data is input into the network for channel estimation. The invention uses a self-attention mechanism in deep learning to build a multi-dimensional feature aggregation network model. The estimation performance is much higher than the traditional channel estimation method, and the space-time complexity of the network is very low, which can be applied to an AUV wireless communication system through offline training.

Abstract: The present disclosure provides a large single-crystal Prussian white-based sodium-ion positive electrode material and a method for preparing same. The Prussian white-based sodium-ion positive electrode material has a chemical general formula NaxMn[Fe(CN)6], wherein 1.9?x<2.00. The method comprises: (1) mixing and dissolving Na4Fe(CN)6·10H2O and ethylenediaminetetraacetic acid manganese sodium salt to prepare a first solution A; and (2) dropwise adding a diluted acid, as a second solution B, into the first solution A, performing an aging reaction, washing, and drying to give the Prussian white-based sodium-ion positive electrode material with a low water content. By using an acidic cation dissociation method, the present disclosure synthesizes a Prussian white-based sodium-ion positive electrode material with a low water content at room temperature, and the synthesized material features large primary particles, good thermal stability, a low water content, and a high capacity.