Abstract: A microvalve (8), comprising a first flow guide channel (841) for communicating with microchannels (401, 402, 403, 404) in a chip and a second flow guide channel (842) for communicating liquid storage recesses (11, 12) in the chip to the ambient atmosphere, wherein the first flow guide channel and the second flow guide channel do not communicate with each other. Also provided are a microfluidic chip (100) and a method for controlling the flow of a plurality of fluids in a microfluidic chip. The microfluidic chip (100) comprises a microvalve capable of controlling the flow of a fluid. The microfluidic chip has three position states, so as to control different fluids in the chip to sequentially flow in the chip. The microfluidic chip and the microvalve have simple structures, are convenient to assemble, are reusable, and can avoid the possibility of mutual contamination between fluids.

Abstract: A printed circuit board (PCB) structure and mounting assembly for joining two PCBs. A first PCB has a top and bottom surface faces and a peripheral end face separating the top and bottom surface. The first PCB has one or more conductive wire ends exposed at a surface of the peripheral end face; the exposed conductive wire ends forming multiple separate electrical contacts across the thickness and length of the PEF surface. A second PCB has a top surface face and one or more conductive pads exposed at the top surface at locations corresponding to locations of the multiple electrical contacts. A surface mount solder material is disposed on one or more exposed conductive pads for electrically connecting with corresponding the multiple electrical contacts. The disposed solder material stably joins the PEF surface of the first PCB to the top surface of the second PCB in a relative perpendicular orientation.

Abstract: A wireless communication device and method used in a base station side and a user equipment side. The wireless communication device used in the base station includes one or more processors configured to respectively configure, based on an antenna configuration of a base station and on a plurality of spatial dimensions, a downlink reference signal of the base station, and generate a control message comprising an indication indicating that the base station respectively transmits, on the plurality of spatial dimensions, the downlink reference signal, so as to be used in a user equipment served by the base station.

Abstract: A pixel structure for a display is provided. The pixel structure includes a substrate; a first metal layer disposed on the substrate, the first metal layer including at least one scanning line; an insulating layer disposed on the first metal layer, the insulating layer comprising a plurality of through holes; and a second metal layer disposed on the insulating layer, the second metal layer including at least one data line and at least one second metal segment, and the data line separated from the second metal segment; wherein the second metal segment is electrically connected in parallel with the scanning line via the plurality of through holes.

Abstract: Aqueous electrolytes comprising fluorenone/fluorenol derivatives are disclosed. The electrolyte may be an anolyte for an aqueous redox flow battery. In some embodiments, the compound, or salt thereof, has a structure according to any one of formulas I-III where Q1-Q4 independently are CH, C(R1) or N, wherein 0, 1, or 2 of Q1-Q4 are N; Q5-Q8 independently are CH, C(R2), or N, wherein 0, 1, or 2 of Q5-Q8 are N; Y is C?O or C(H)OH; R1 and R2 independently are an electron withdrawing group; n is an integer >1; and x and y independently are 0, 1, 2, 3, or 4, where at least one of x and y is not 0.

Abstract: The disclosure provides a display device, including a liquid crystal cell and at least one reflective dielectric layer. The at least one reflective dielectric layer is configured to increase reflection of projected light emitted into the display device, thereby reducing loss of the projected light, which is emitted from a projection pointer, in the display device.

Abstract: A method, apparatus and storage medium for determining a navigation reference point, a navigation method, apparatus and storage medium. The method includes: determining a navigation route according to origin position information and destination position information sent by a navigation terminal (S110); determining a search area corresponding to the origin position information according to the origin position information (S120); acquiring, in the search area, a target building as a reference point indicating a forward direction for a user of the navigation terminal after navigation starts, according to a defined building selecting rule (S130); and pushing the navigation route and the target building to the navigation terminal (S140). According to the technical solution, the existing route navigation techniques is optimized, thereby satisfying growing navigation demands of people for facilitation and individuation.

Abstract: An electroluminescent device, a manufacturing method thereof, and a display apparatus are provided. The electroluminescent device includes an anode layer, a light emitting layer, a cathode layer, a hole transport layer located between the anode layer and the light emitting layer, and a electron transport layer located between the cathode layer and the light emitting layer. The electroluminescent device further includes: a first interface modification layer between the light emitting layer and one of the hole transport layer and the electron transport layer; wherein an energy level of the first interface modification layer matches an energy level of the light emitting layer and an energy level of the one of the hole transport layer and the electron transport layer.

Abstract: A terminal-implemented method, a server-implemented method and a terminal for acquiring a certification document are provided. The terminal-implemented method includes: determining a target application for providing the certification document according to a user-input identification of a legal source of the certification document; acquiring page contents of the target application, the page contents containing the certification document; and sending document contents including the page contents or the certification document to a certification-document extracting server to enable certification-document extracting server to extract the certification document from the document contents.

Abstract: A large field-of-view adaptive optics retinal imaging system and method with common optical path beam scanning, the system comprises: a light source module (1), an adaptive optics module (2), a beam scanning module (3), a defocus compensation module (4), a sight beacon module (6), a pupil monitoring module (7), a detection module (8), a control module (9) and an output module (10). The beam scanning module is configured in different scanning modes for carrying out different scanning imaging functions including a large field-of-view imaging function, a small field-of-view high-resolution imaging function and a large field-of-view high-resolution imaging function. The system is simple in structure, and the common optical path structure can obtain three types of retinal imaging images, which meets the requirements of different application scenarios and improves the application range of retinal imaging.

Abstract: An impedance measurement system for detecting an analyte in a sample is disclosed. The system includes first, second, and third electrodes, wherein at least a portion of the third electrode is positioned between the first and second electrodes, means for generating an electromagnetic field between the first and second electrodes, means for electrically controlling the third electrode, wherein the third electrode modifies the electromagnetic field, and a processor for detecting a presence of the analyte in the sample, based at least in part on a property of the electromagnetic field.

Abstract: A flow cell and a liquid chromatographic unit are provided. The flow cell includes a housing, a cell core, a liquid-core waveguide, an inlet connection assembly and an outlet connection assembly. The cell core is provided in the housing, and is provided with a liquid feed recess, a liquid channel and a liquid discharge recess therein. The liquid-core waveguide is provided in the liquid channel. The inlet connection assembly is provided at an end of the cell core, and includes an inlet press block, a liquid feed tube, and a light entering tube. The outlet connection assembly is arranged at another end of the cell core and is provided with a light exit hole.

Abstract: An intelligent riveting system comprising a hydraulic riveting tool (1), a riveting position identification system, a riveting displacement detection system, a riveting pressure detection system and a central processing system, wherein the central processing system acquires image information and carries out position identification, encoding and storage to form riveting position data in one-to-one correspondence, acquires real-time displacement data and riveting oil pressure data of each riveting position to form real-time data corresponding to riveting displacement values and riveting pressure values, and compares same with a standard to carry out quality determination. By means of the intelligent riveting system, a riveting position and an installation parameter are automatically identified and acquired, and the riveting quality is automatically determined; and by means of storing data during riveting and installation, the traceability of rivet installation quality can be achieved.

Abstract: A light-emitting device comprising: a light source; and a light guide that is optically coupled to the light source, the light guide including a plurality of first non-fluorescent light extraction elements and a plurality of second non-fluorescent light extraction elements that are printed on the light guide, each of the first light extraction elements having a reflectance that is higher than a reflectance of any of the second light extraction elements, each of the first light extraction elements having a light transmittance that is lower than a light transmittance of any the second light extraction elements, each of the first light extraction elements having the same shape and size as any other one of the plurality first light extraction elements, and each of the second light extraction elements having the same shape and size as any other one of the plurality of second light extraction elements.

Abstract: One silicon MOSFET transistor, which is used as the VThreshold control, and a GaN power HEMT are integrated on a single die to enable a fully integrated depletion-mode power device. GaN area is created on a silicon substrate and GaN FETs are built in the GaN area. Outside of the GaN area, silicon transistors such as switch MOSFETs are built. Front end of line or back end of line metal connections are then made to create interconnections among the GaN FET and the silicon transistor. The short physical proximity of the silicon transistor and GaN HEMT significantly reduces the parasitic resistance and inductance between them. Thus, high speed signals are able to travel from the silicon transistor to the GaN HEMT with a higher frequency and lower distortion, without creating overshoot voltage when there is large parasitic inductance. Therefore, the cascode device can operate at a higher switching frequency.

Abstract: Provided are a method and apparatus for fusion of a panoramic video to solve a problem that a panoramic video image formed by stitching is incomplete. The method includes: acquiring a panoramic video image (21); extracting a moving target from at least two cuboid three-dimensional images (22); performing image fusion processing on the panoramic video image and the moving target to form a panoramic video image incorporated with the moving target (23). Thereby, problems such as overlapping and disappearance of a moving target, in whole or in part, in a panoramic video image generated by adopting a cuboid three-dimensional model are solved, thereby ensuring the completeness of a panoramic video image and improving the quality of the panoramic video image.

Abstract: The present invention discloses a system for site-specific modification of ALS gene by a CRISPR-Cas9 system to produce herbicide-resistant rice, and uses thereof. The system for site-specific modification in a plant genome of the present invention comprises a vector for site-specific modification in a plant genome and a donor DNA; wherein the vector for site-specific modification in a plant genome comprises a Cas9 protein expression cassette, gRNA expression cassettes and a donor DNA; the gRNA expression cassettes encode two gRNAs targeting two target sites of a target DNA of a plant of interest, respectively; the target DNA has a fragment to be site-specifically modified which is positioned between the two target site.

Abstract: Techniques facilitating resolution-based spatial computing are provided. In one example, a computer-implemented method comprises traversing, by a device operatively coupled to a processor, a data structure corresponding to a land area for a location having an index; and determining, by the device, whether the location is at least partially within the land area based on a result of the traversing. In some embodiments, the traversing comprises: obtaining a threshold number of levels based at least in part on a resolution parameter; scanning a first level of the data structure for a node having an index corresponding to the index of the location; and iterating the scanning for respective subsequent levels of the data structure based on the scanning returning a node having subordinate nodes and a number of levels for which the scanning and iterating have been performed being less than the threshold number of levels.

Abstract: A system that provides intelligent constant on-time control may include a first switch coupled to a power input; a second switch coupled to the first switch; a switching node between the first switch and the second switch, the switching node configured to be connected to an inductor and a power output; feedback paths coupled to (1) a synthesized node and (2) the power output, the feedback paths enabling feedback of signals from (1) the synthesized node, and (2) the power output; and a controller coupled to the feedback paths. The controller may be configured to control a voltage at the power output based on a combination of the signals carried by the feedback paths.

Abstract: A network system for interconnecting an operational technology (OT) network and an information technology (IT) network in a building. The network system includes an OT network, an IT network, and a network tool. The network tool is configured to obtain a current network configuration of a plurality of OT network switches in an OT network. The current network configuration includes at least one of the network addresses of the plurality of OT network switches and a routing table associated with the plurality of OT network switches. The network tool is further configured to update the routing table to route network traffic between the OT network and an IT network. The network tool is further configured to update the network addresses of the plurality of OT network switches to have network addresses within at least one subnet of the IT network.