Abstract: A scalable cloud-based data processing and computing platform to support a large volume data pipeline.

Abstract: A circuit board includes a circuit substrate. The circuit substrate includes an insulating substrate and an electronic component embedded therein. The insulating substrate defines two first slots. A first phase change material fills in the two first slots and thermally connects to the electronic component. A first wiring layer is formed on a surface of the insulating substrate, the first wiring layer covers the two first slots and thermally connects to the first phase change material. A second wiring layer is formed on another surface of the insulating substrate. The second wiring layer includes a plurality of wiring portions and a wiring slot formed between adjacent wiring portions. The electronic component electrically connects to the second wiring portion. A second phase change material fills in at least one wiring slot and thermally connects a portion of the wiring portions together to form a heat dissipation zone.

Abstract: A component embedded circuit board includes a printed circuit board, a dielectric layer, and an antenna structure laminated in that order. The printed circuit board includes a first opening and a first circuit layer, and the first circuit layer includes at least one first connecting pad. A second opening is defined in the dielectric layer. A conductive structure is embedded in the dielectric layer. The second opening penetrates the dielectric layer. The antenna structure includes a first ground layer. A component is embedded in the first opening. One end of the conductive structure is connected to the first ground layer, and the other end of the conductive structure is connected to the first connecting pad. The second opening corresponds to the first opening. A gap is generated by the second opening and the component. A method for manufacturing the package circuit structure is also disclosed.

Abstract: A wireless access method includes the following steps. An access point obtains a personal identification number of a terminal device and broadcasts a beacon. The access point performs a terminal device authentication on a vendor specific information element of a probe request from the terminal device according to the personal identification number. When the terminal device authentication is successful, the access point performs a key calculation according to the personal identification number and the probe request to generate a pairwise transient key, a key encryption key and a group transient key and uses the key encryption key to encrypt a pre-shared key and the group transient key. The access point transmits a probe response to the terminal device. The access point installs the pairwise transient key and the group transient key to establish an encrypted transmission.

Abstract: A method and a system for identifying a glacial lake outburst debris flow (GLODF) are provided. The method is obtained based on considering induced influences of slopes of channels and particle sizes of source particles on the GLODF. The method not only compensates for deficiencies in identifying the GLODF, but also realizes determination of the GLODF, which provides data basis for disaster prevention and control layout such as monitoring and early warning on a glacial lake and assists preventing and managing disasters caused by the GLODF. Meanwhile, multiple parameters used in the method are easy and convenient to obtain, and the parameters can be directly used on site, which saves engineering cost, improves working efficiency, and has high practical and promotional value in environmental protection and disaster prevention and mitigation.

Abstract: A circuit board includes a circuit substrate. The circuit substrate includes an insulating substrate and an electronic component embedded therein. The insulating substrate defines two first slots. A first phase change material fills in the two first slots and thermally connects to the electronic component. A first wiring layer is formed on a surface of the insulating substrate, the first wiring layer covers the two first slots and thermally connects to the first phase change material. A second wiring layer is formed on another surface of the insulating substrate. The second wiring layer includes a plurality of wiring portions and a wiring slot formed between adjacent wiring portions. The electronic component electrically connects to the second wiring portion. A second phase change material fills in at least one wiring slot and thermally connects a portion of the wiring portions together to form a heat dissipation zone.

Abstract: A wireless repeater is in communication with a wireless communication device and a wireless access point (AP) and includes a packet transceiver circuit and a computing circuit. The computing circuit is configured to control the packet transceiver circuit to receive from the wireless communication device or the wireless access point a first frame that includes a first receiver address, a first transmitter address, a first destination address, and a first source address, and to control the packet transceiver circuit to send a second frame to the wireless AP or the wireless communication device, the second frame including a second receiver address, a second transmitter address, a second destination address, and a second source address. The first source address is identical to the second source address, the first destination address is identical to the second destination address, and the first receiver address is identical to the second transmitter address.

Abstract: A method for manufacturing a fixing belt for a wearable device, includes providing a flexible circuit board including a first area, a second area, and a pad in the first area; disposing an insulating layer on the flexible circuit board, the insulating layer being disposed in the second area; forming an electric conductive portion in the insulating layer; disposing a first protective layer and a second protective layer on opposite surfaces of the flexible circuit board, the electric conductive portion being between the flexible circuit board and the first protective layer; mounting an electronic component on the pad. A portion of the fixing belt containing the second area is a plug-in area, and the plug-in area is configured to be engaged with a device body of the wearable device, the electric conductive portion is disposed in the plug-in area.

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 blank material for a ceramic tile consists of the following components in percentage by weight: nepheline powder: 10%-15%; clay with a carbon content of ?3.0 wt %: 10%-15%; clay with a carbon content of ?0.5 wt %: 15%-22%; clay with a carbon content between 0.5 wt % and 3.0 wt %: 10%-15%; recycled waste blank: 5%-10%; sodium potassium powder: 5%-10%; sodium feldspar powder: 12%-20%; desulfurization residue: 0%-7%; waste from edging and polishing: 15%-26%; waste porcelain powder: 5%-10%; liquid gel remover: 0.3%-1.0%; liquid reinforcing agent: 0.2%-0.8%. Its preparation method comprises the following steps: preparing raw materials for a blank body and ball milling, powder spray granulation, aging, pressing and molding of the blank body, drying, polishing the blank body, spraying water, glazing, applying a decorative pattern, firing.

Abstract: A heat insulation pad and method of making the same, battery assembly and device are provided. In some embodiments, the heat insulation pad includes silicon rubber and aerogel dispersed in the silicon rubber, wherein the heat insulation pad satisfies that: a temperature difference between a surface on one side of the heat insulation pad and a surface on the other side opposite to the one side is ?150° C., when the surface on one side of the heat insulation pad is contacted with hot surface having a temperature of 600° C. for 5 minutes under a pressure of 0.9 MPa followed by pressure relief and then is contacted with hot surface having a temperature of 600° C. for another 20 minutes. By using the heat insulation pad of the present disclosure, the safety performance of the battery assembly and of the device can be improved.

Abstract: A method for designing a distributed communication topology of a micro-grid based on network mirroring and global propagation rates includes the following steps: first, determining the communication connectivity of distributed directed networks in the micro-grid; next, obtaining, for connected directed communication networks, mirror networks thereof based on a mirroring operation, and selecting an optimal distributed directed communication topology corresponding to a maximum performance indicator based on algebraic connectivity and communication costs; solving, for the optimized distributed communication topology, pinned distributed generation sets corresponding to different pinning numbers based on global propagation rates and out-degrees; and finally, establishing a distributed secondary voltage control of the micro-grid based on the optimal distributed communication network and pinned nodes of the micro-grid, to achieve accurate reactive power sharing and average voltage restoration.

Abstract: An antenna module includes an inner circuit board, an antenna circuit board, an outer circuit board, and at least one chip. The inner circuit board includes at least one inner wiring layer and at least one inner dielectric layer. The antenna circuit board includes at least one antenna structure. The antenna circuit board and the outer circuit board are disposed on opposite sides of the inner circuit board. The inner wiring layer comprises at least one inner pad. At least one first opening passing through the outer circuit board is defined to expose the inner pad. Each chip is received in one first opening and electrically connects to the inner pad. The antenna structure electrically connects to the chip through the inner wiring layer. A method for manufacturing such antenna module is also provided.

Abstract: A multiple-pulses-in-air (MPiA) laser scanning system, wherein the MPiA problem is addressed in that an MPiA assignment of return pulses to send pulses of a laser scanner is based on range tracking and range probing at intermittent points in time. Each range probing comprises a time-of-flight arrangement which is constructed to be free of the MPiA problem. The invention further relates to an MPiA laser scanning system, wherein an MPiA ambiguity within a time series of return pulses, is converted into 3D point cloud space, which provides additional information from the spatial neighborhood of the points in question to enable MPiA disambiguation.

Abstract: A method for manufacturing a fixing belt for a wearable device, includes providing a flexible circuit board including a first area, a second area, and a pad in the first area; disposing an insulating layer on the flexible circuit board, the insulating layer being disposed in the second area; forming an electric conductive portion in the insulating layer; disposing a first protective layer and a second protective layer on opposite surfaces of the flexible circuit board, the electric conductive portion being between the flexible circuit board and the first protective layer; mounting an electronic component on the pad. A portion of the fixing belt containing the second area is a plug-in area, and the plug-in area is configured to be engaged with a device body of the wearable device, the electric conductive portion is disposed in the plug-in area.

Abstract: A scalable cloud-based data processing and computing platform to support a large volume data pipeline.

Abstract: A method for controlling a terminal apparatus includes acquiring a first gesture image; determining a central coordinate of a gesture in the first gesture image; determining a controlling range in which the gesture has control over the terminal apparatus, based on the central coordinate of the gesture in the first gesture image; and controlling a control object in the controlling range to execute an operation based on a control instruction corresponding to the gesture.

Abstract: A airborne range finder arranged on an aircraft for surveying a target, the finder comprising an emitter configured for emitting electromagnetic pulses towards the target, a receiver for receiving backscattered pulses, wherein the receiver comprises a projection surface comprising an inner area and an outer area, focusing optics configured for imaging pulses backscattered from a distance equal to or longer than a threshold distance onto the inner area, and pulses backscattered from a distance shorter than said threshold distance onto the inner area and a part of the outer area, a detector configured for detecting and outputting pulses imaged onto the projection surface, and a recorder configured for reading the detector and storing pulses detected only within the inner area as target pulses, storing pulses detected within the outer area as near-field pulses, and tagging each stored pulse with a corresponding pulse reception time, and a control unit.