Abstract: A carrier structure is provided, in which at least one positioning area is defined on a chip-placement area of a package substrate, and at least one alignment portion is disposed on the positioning area. Therefore, the precision of manufacturing the alignment portion is improved by disposing the positioning area on the chip-placement area, such that the carrier structure can provide a better alignment mechanism for the chip placement operation.

Abstract: A method for determining a consistency coefficient of a power-law cement grout includes: determining a water-cement ratio of the power-law cement grout; according to engineering practice requirements, determining a time required to determine the consistency coefficient of the power-law cement grout; and obtaining the consistency coefficient of the power-law cement grout. The method is accurate and reliable, requires less calculation, etc.; and has very high practical value and popularization value in environmental protection and ecological restoration.

Abstract: A method for determining a three-dimensional tortuosity of a loose and broken rock-soil mass, includes the following steps: a particle grading curve of the loose and broken rock-soil mass is obtained by utilizing a particle size analysis, and followed by calculating an equivalent particle size and an average particle size; a porosity of the loose and broken rock-soil mass is obtained by utilizing a moisture content test, a density test, and a specific gravity test; the three-dimensional tortuosity of the loose and broken rock-soil mass is obtained by utilizing the equivalent particle size, the average particle size and the porosity of the loose and broken rock-soil mass. The method has the advantages of simple logic, accuracy and reliability, simple and fast parameter determination, and has high practical value and promotion value in the field of environmental protection and ecological restoration technology.

Abstract: A device (100;120;140) and method (600) for storing encryption keys are provided. The device comprises: a first connector for connection to a computer, an internal memory (104); an input module (101); and an authentication module (103) for receiving user identification information, via the input module, from a user. The authentication module is configured to check received user identification information against stored user identification information stored on the internal memory to determine if a user is a valid user. A first data encryption key, DEK, is stored in encrypted form on the internal memory and is associated with the stored user identification information of a first plurality of user identities, and a second DEK is stored in encrypted form on the internal memory and is associated with the stored user identification information of a second, different, plurality of user identities.

Abstract: A pet light-emitting safety device includes a light guide bar and a light source controller controlling light transmitting to the light guide bar. The light guide bar includes a light-emitting body and fixing portions connected to the light-emitting body. The fixing portions define end surfaces configured to input the light. The light source controller includes a box body, a main control board accommodated in the box body, and light sources connected to the main control board. Sides of the box body defines channels fixing the fixing portions. The fixing portions are separately inserted into a corresponding channel. Each of the light sources is arranged on one end of each of the fixing portions away from the corresponding channel. Light-emitting surfaces of the light sources face the end surfaces of the fixing portions. A pet chest and back harness and a pet collar include the pet light-emitting safety device.

Abstract: The present disclosure provides a method and a system for manufacturing a flexible transparent conductive film with an embedded metal material. The method comprises the steps of sequentially printing metal nanowire grids and metal grids with a large aspect ratio on a printing substrate through an electric field driven micro-nano 3D printing method, and forming a composite conductive electrode of the metal grids and the metal nanowire grids; performing conductive treatment on the composite conductive electrode to obtain an electrode material; and embedding the electrode material into a photoresist, separating the photoresist embedded with the electrode material from the printing substrate, and removing the printing substrate to obtain a conductive film, wherein the metal nanowire grids are formed by printing the metal nanowires, and the metal grids with a large aspect ratio are formed by printing nano metal paste.

Abstract: The present disclosure discloses a method for liquid fermentation of black tea juice by using aged green tea and belongs to the technical field of tea leaf processing. The method comprises the following process steps: mixing aged green tea with hot water for a water bath-assisted extraction; adding a tannase into a crude catechin extract for a water bath-assisted enzymolysis; freeze-withering fresh tea leaves; homogenizing the freeze-withered leaves; pouring a homogenate into a primarily enzymolyzed crude catechin extract, adding a ?-glucosidase for secondary enzymolysis and performing fermentation; and treating a fermentation broth by microwave, and performing filtration and cooling to a room temperature.

Abstract: A roller bearing includes an outer ring, an inner ring, at least one row of rollers arranged between the outer ring and the inner ring, and at least one optical fiber cable mounted to the outer ring or the inner ring, the optical fiber cable including at least one Bragg grating. The optical fiber cable is configured such that a signal in the optical fiber cable is usable to determine a preload or load on the roller bearing.

Abstract: A micro-nano 3D printing device with multi-nozzles jet deposition driven by electric field of single flat plate electrode, including: a printing head module group, printing nozzle module group of any material, printing substrate of any material, flat plate electrode, printing platform, signal generator, high-voltage power supply, feeding module group, precision back pressure control module group, XYZ three-axis precision motion platform, positive pressure air circuit system, observation and positioning module, UV curing module, laser rangefinder, base, connection frame, first adjustable bracket, second adjustable bracket, and a third adjustable bracket; the device realizes high throughput micro-nano 3D printing of jet deposition, including different configuration implementation schemes like multi-materials with multi-nozzles, single material with multi-nozzles and single material with multi-nozzles array, improves the printing efficiency, and realizes multi-materials macro/micro/nano printing, high-aspect-rat

Abstract: The present invention relates to a quick-response voltage control method of distribution systems considering multiple participants, comprising a multiple agent system (MAS), which collects the local information of the distribution system controlled by each agent and interacts with the local information collected by each agent, so that voltage-power sensitivity of the distribution system, used for providing the theoretical basis for voltage regulation, is calculated by distributed calculation; and multiple participants, which establish incentive mechanism by DSOs based on the bidding game with imperfect information, and independently decide their own strategies to obtain the voltage regulation subsidy from the DSOs, according to the calculated voltage-power sensitivities, thus provide voltage support for the distribution system in the process of pursuing benefit maximization.

Abstract: A 3D printing device and method for integrated manufacturing of functionally gradient materials and three-dimensional structures. The device includes an active and passive mixing and printing module and a constraining and sacrificial layer printing module. An input end of the active mixing module connects to multiple anti-settling feeding modules, and an output end of the active mixing module connects to the passive mixing and printing module. The passive mixing and printing module and the constraining and sacrificial layer printing module are mounted on one side of an XYZ three-axis module. The constraining and sacrificial layer printing module connects to a constraining and sacrificial layer feeding module and prints and forms a functionally gradient three-dimensional structure.

Abstract: A preparation method of silicon-based composite negative electrode material for a lithium battery includes the following steps: forming steam from a raw material A containing Si and a reducing substance raw material B capable of reacting to generate a silicate under a vacuum heating condition, condensing and depositing in a deposition system after a reaction, and then carrying out carbon coating to obtain the silicon-based composite material. A certain amount of alloy is added into the raw material B, so that a proportion of a crystal region in the silicon-based composite material can be reduced, and the initial coulombic efficiency and the cycling stability of the negative electrode material are further improved.

Abstract: A method and apparatus for mass production of AR diffractive waveguides. Low-cost mass production of large-area AR diffractive waveguides (slanted surface-relief gratings) of any shape. Uses two-photon polymerization micro-nano 3D printing to realize manufacturing of slanted grating large-area masters of any shape (thereby solving the problem about manufacturing of slanted grating masters of any shape on the one hand, realizing direct manufacturing of large-size wafer-level masters on the other hand, and also having the advantages of low manufacturing cost and high production efficiency). Composite nanoimprint lithography technology is employed (in combination with the peculiar imprint technique and the composite soft mold suitable for slanted gratings) to solve the problem that a large-slanting-angle large-slot-depth slanted grating cannot be demolded and thus cannot be manufactured, and realize the manufacturing of the slanted grating without constraints (geometric shape and size).

Abstract: A manufacturing method of an embedded metal mesh flexible transparent electrode and application thereof; the method includes: directly printing a metal mesh transparent electrode on a rigid substrate by using an electric-field-driven jet deposition micro-nano 3D printing technology; performing conductive treatment on a printed metal mesh structure through a sintering process to realize conductivity of the metal mesh; respectively heating a flexible transparent substrate and the rigid substrate to set temperatures; completely embedding the metal mesh structure on the rigid substrate into the flexible transparent substrate through a thermal imprinting process; and separating the metal mesh completely embedded into the flexible transparent substrate from the rigid substrate to obtain the embedded metal mesh flexible transparent electrode.

Abstract: A preparation method of silicon-based composite negative electrode material for a lithium battery includes the following steps: forming steam from a raw material A containing Si and a reducing substance raw material B capable of reacting to generate a silicate under a vacuum heating condition, condensing and depositing in a deposition system after a reaction, and then carrying out carbon coating to obtain the silicon-based composite material. A certain amount of alloy is added into the raw material B, so that a proportion of a crystal region in the silicon-based composite material can be reduced, and the initial coulombic efficiency and the cycling stability of the negative electrode material are further improved.

Abstract: The invention provides a visualized time sequence pattern matching method based on Hough transformation, and relates to the technical field of data visualization analysis. The method comprises the steps of: firstly, judging whether historical data to be matched is one-dimensional time sequence data or multi-dimensional time sequence data, and if the historical data to be matched is the multi-dimensional time sequence data, performing normalization processing; performing time sequence selection: selecting a time sequence to be matched from the historical data in a time window pattern, and eliminating the selected time sequence from the historical data; converting a time sequence image in original coordinates to Hough space through the Hough transformation, and judging the similarity matching situation of the time sequence through a voting mechanism; and finally, screening the finally-matched results according to the voting results.

Abstract: A dongle for ciphering, receiving and transmitting data to and from an external device is provided. The dongle includes a user interface configured to receive authentication data to confirm an identity of a user. The dongle is disabled for ciphering data unless an authorised user is identified. A data transfer channel is configured to couple the dongle to the external device to receive and transmit user data between the dongle and the external device. A hardware encryption engine is configured to perform a ciphering transformation on user data received from the external device. The dongle is configured to perform a return transmission to return the user data that has been transformed to the external device via the data transfer channel in real-time using a single data transfer channel without storage of the user data on the dongle.

Abstract: The present invention relates to a quick-response voltage control method of distribution systems considering multiple participants, comprising a multiple agent system (MAS), which collects the local information of the distribution system controlled by each agent and interacts with the local information collected by each agent, so that voltage-power sensitivity of the distribution system, used for providing the theoretical basis for voltage regulation, is calculated by distributed calculation; and multiple participants, which establish incentive mechanism by DSOs based on the bidding game with imperfect information, and independently decide their own strategies to obtain the voltage regulation subsidy from the DSOs, according to the calculated voltage-power sensitivities, thus provide voltage support for the distribution system in the process of pursuing benefit maximization.

Abstract: A dongle for ciphering, receiving and transmitting data to and from an external device is provided. The dongle includes a user interface configured to receive authentication data to confirm an identity of a user. The dongle is disabled for ciphering data unless an authorised user is identified. A data transfer channel is configured to couple the dongle to the external device to receive and transmit user data between the dongle and the external device. A hardware encryption engine is configured to perform a ciphering transformation on user data received from the external device. The dongle is configured to perform a return transmission to return the user data that has been transformed to the external device via the data transfer channel in real-time using a single data transfer channel without storage of the user data on the dongle.