Abstract: The present disclosure provides a coal bump control method for sectional hydraulic fracturing regions of a near vertical ultra thick coal seam. The method includes: deepening a main shaft from a mining level to a fracturing level; excavating a cross-hole from a roof rock layer of a coal seam at the fracturing level to enter a coal seam being mined, and excavating a roadway along the strike of the coal seam; and drilling hydraulic fracturing boreholes in a dedicated fracturing roadway along an inclination angle of the coal seam to the coal seam above the roadway, wherein the length of the borehole makes the borehole in communication with a goaf, and the spacing of the boreholes along the strike and the sectional spacing of the boreholes in an inclination direction are designed according to the parameters of fracturing equipments and the fracturing length.

Abstract: A method of retrieving a query, an electronic device, and a medium are provided, which relate to fields of intelligent searching, intelligent recommendation, natural language processing, etc. The method of retrieving a query includes: processing a query to be retrieved, so as to obtain a first processing result for the query to be retrieved, the first processing result containing a first text information and a first semantic information; comparing the first processing result with a second processing result of each of at least one candidate query, so as to obtain a comparison result, the second processing result containing a second text information and a second semantic information; determining a target query from the at least one candidate query based on the comparison result; and determining at least one of the target query or an answer corresponding to the target query as a retrieving result.

Abstract: A defoamer composition contains I) an oil phase, II) a water phase, III) at least one O/W emulsifier, and IV) at least one W/O emulsifier as co-emulsifier. In the defoamer composition, the amount of the water phase is 20-90 wt. %, preferably 60-85 wt. % based on the total weight of the composition. The oil phase is an oil-in-oil emulsion containing A) at least one or more vegetable oil as component A, B) at least one or more polyether ester as component B, C) at least one or more polyether-modified polysiloxane, and optionally D) at least one or more hydrophobic particle as component D.

Abstract: A processor-implemented method with molecular dynamics simulation includes: setting a precision of first data used for a molecular dynamics simulation to be a first precision; setting a precision of second data used for the molecular dynamics simulation to be a second precision that is different from the first precision; and conducting the molecular dynamics simulation based on the first data of the first precision and the second data of the second precision.

Abstract: A high frequency RF power transistor includes first and second elongated mesas. In one example, the transistor is part of a millimeter wave MMIC power amplifier. From the top-down perspective, the two mesas are disposed in an off-axis and staggered orientation with respect to one another. A branched gate electrode is formed such that a first branch from a gate signal input location to the first mesa is the same length as a second branch from the input location to the second mesa. Likewise, a branched drain electrode is formed such that a first branch from the first mesa to a drain signal output location is the same length as a second branch from the second mesa to the output location. The off-axis and staggered orientation of the mesas spreads heat generation across the integrated circuit and reduces circuit size in the critical dimension perpendicular to signal flow direction.

Abstract: An integrated circuit includes a power amplifier and a power detector. The power detector has a VDET node and a VREF node. A first filter coupled to the VDET node outputs a signal VDET onto a VDET terminal. A second filter coupled the VREF node outputs a signal VREF onto a VREF terminal. The signals VDET and VREF are generated so that the voltage difference between the two signals varies in proportion to the RF output power magnitude with an accuracy of ±0.1 decibels over a ?45° C. to +85° C. temperature range. An amount of the RF signal as output by the power amplifier is coupled onto the VDET node and is detected by a half-wave rectifying RF detector diode. The diode has a capacitance that increases with temperature, so a temperature compensation circuit that has an admittance that decreases with temperature is coupled in parallel with the detector diode.

Abstract: An eco-friendly power source such as a battery module is provided for a transportation vehicle, including: a first sub-module and a second sub-module respectively including a cell stack in which a plurality of battery cells are stacked; and a central wall disposed between the first sub-module and the second sub-module, wherein the central wall includes a first central wall facing the first sub-module and a second central wall facing the second sub-module, wherein the first central wall has a rotationary symmetrical shape of the second central wall around a first axis.

Abstract: A distance adjustment apparatus and a control method of the distance adjustment apparatus are provided. The distance adjustment apparatus includes a connection component, and the connection component includes a first component and a second component. The first component is connected to the second component, and a memory alloy component is disposed in a connection region between the first component and the second component. The memory alloy component is controlled by a current to drive the first component and the second component to move closer to and/or away from each other.

Abstract: An ultra-wideband electromagnetic band gap (EBG) structure includes multiple EBG units in an array. Each EBG unit includes a power plane, a dielectric substrate and a ground plane from top to bottom. The power plane includes a patch, a coupled complementary split ring resonator (C-CSRR) and a plurality of semi-improved Z-bridge structures. Each edge of the patch is provided with a semi-improved Z-bridge structure. The C-CSRR is provided within a ring formed by the semi-improved Z-bridge structures. The Z-bridge structure includes a first horizontal branch, a first vertical branch, a second horizontal branch and a second vertical branch connected in sequence. The second vertical branch is connected to the patch. First horizontal branches of adjacent EBG units are connected to each other. A circuit board including the aforementioned EBG structure is also provided.

Abstract: A distributed display method provides different parts of an application interface that are collaboratively displayed on a plurality of terminals, so that manners for collaborative display between the plurality of terminals are more flexible and richer. A first terminal displays a first interface including a first part and a second part. When the first terminal detects that a preset condition is met, the first terminal displays a second interface, where the second interface includes the first part and does not include the second part; and the first terminal notifies a second terminal to display a third interface, where the third interface includes the second part and does not include the first part.

Abstract: Embodiments of the present disclosure relate to downlink/uplink data transmission in a wireless communication system. In an embodiment of the present disclosure, there is provided a method for downlink data transmission in a wireless communication system which comprises transmitting an indication for a new-type reference signal to a user equipment, wherein the new-type reference signal has an identical location in frequency domain to a legacy reference signal; and transmitting the new-type reference signal and the legacy reference signal to the user equipment for using in channel estimation. In a case of more than one antenna port, the new-type reference signal may be designed to have a different location in time domain from a legacy reference signal to avoid interference to other antenna ports.

Abstract: A deep-sea crawling robot and a crawling method thereof are provided. The deep-sea crawling robot includes a crawling robot body and a countertop, wherein a top of the crawling robot body is fixedly connected to the countertop, left and right sides of a bottom of the crawling robot body are respectively provided with crawler belts, and left and right sides of the countertop are respectively provided with weight-increasing auxiliary crawling mechanisms; and an outer plate is fixedly connected to a front side or back side of the countertop, a multifunctional propelling mechanism is arranged on the outer plate, and a rapid dewatering mechanism is arranged in a chamber of the countertop. The deep-sea crawling robot can not only accelerate the propulsion and crawling speed when it is on the seabed but also further enhance its stability during the crawling process on the seabed.

Abstract: A data processing method, a server, and a data collection device are provided. The method includes: obtaining, by a server, first network key performance indicator KPI data and performance data of a first set-top box STB, where the first network KPI data is network KPI data of a first video service stream, and the first STB is an STB that receives the first video service stream; and calculating, by the server, first video quality of experience QoE of the first video service stream based on an associated model, the first network KPI data, and the performance data of the first STB, where the associated model is a model obtained through training based on historical data, and the associated model is used by the server to calculate video QoE based on network KPI data and performance data of an STB.

Abstract: This disclosure relates to a method and an apparatus for processing a sample. The method includes acquiring an identification of each cassette in a basket and an identification of each sample contained in the cassette by reading an electronic tag of the cassette, wherein the identification of the cassette and the identification of the sample contained in the cassette are stored in an associated manner in the electronic tag of the cassette; acquiring information of each sample from a library information system based on the identification of the sample; and recording the information of each sample for use in subsequent processing of the sample.

Abstract: Provided is a steam jet multifunctional aircraft deicing vehicle with steam jet, includes a vehicle body, where a steam generating assembly is arranged in the vehicle body, and the steam generating assembly is connected with a steam conveying assembly. A moving assembly is rotatably connected above the vehicle body, and the moving assembly is rotatably connected with an execution assembly. The execution assembly includes a first spray head assembly and a second spray head assembly. The steam conveying assembly includes a first supercharger and a second supercharger arranged side by side, where an air outlet end of the first supercharger is communicated with one end of a first air outlet pipe, and an other end of the first air outlet pipe is communicated with spray heads of the second spray head assembly through a first air pipeline.

Abstract: A construction method and system for asset value models in a digital twin engine includes: measuring the level of business importance based on a business model of building energy consumption assets, and constructing a first asset value model according to the business importance; establishing a correlation between the assets and productivity, and constructing a second asset value model according to productivity loss caused by the assets; and calculating the energy use efficiency of a building according to optimal decision variables, predicting the degradation index of the assets through the energy use efficiency, the first asset value model and the second asset value model, and generating a maintenance solution of the assets. The disclosed has ingenious conception and excellent effect, and realizes the accurate evaluation of the asset value by establishing the correlation between the assets and different businesses and different efficiency, generating the optimal and most accurate asset maintenance solution.

Abstract: A method of predicting a location of a user equipment, UE, in a mobile communication network includes generating a list of potential target base stations by generating a transition count for each potential target base station including a count of transitions from the base station to the potential target base station within a predetermined time period, generating a plurality of relative transition frequencies based on the transition counts, and generating a transition probability for each respective potential target base station based on the relative transition frequency of the potential target base station from the base station.

Abstract: A hierarchical proxy deployment method includes: performing information collection and information interaction in a hierarchical proxy deployment architecture to obtain bandwidths and latencies of all inter-node communication links; and selecting an optimal proxy deployment solution from all feasible proxy deployment solutions based on the bandwidths and latencies of all the inter-node communication links. According to the method, a hierarchical proxy deployment architecture is used. An optimal proxy deployment solution is formed by selecting the optimal location and the optimal number of proxies for deployment to meet the transmission performance requirement of network applications in 5G/B5G networks. Therefore, transmission performance requirements are satisfied by a proxy deployment with a minimized number of proxies, thereby reducing network overheads and resource waste.

Abstract: The present application provides a hybrid running track article, comprising, from top to bottom: (I) a top coating layer made from a first composition comprising an externally emulsified polyurethane dispersion and rubber particles, wherein the externally emulsified polyurethane dispersion is derived from: (Ai) an isocyanate component comprising one or more compounds having at least two isocyanate groups, (Bi) an isocyanate-reactive component comprising one or more compounds having at least two isocyanate-reactive groups; (Ci) an optional catalyst, (Di) an external emulsifier, (Ei) a chain extender and (Fi) water, and (II) a bottom layer made from a second composition comprising a 1K solvent-free polyurethane binder and rubber particles.

Abstract: A method of predicting a location of a user equipment, UE, in a mobile communication network includes generating a list of potential target base stations by generating a transition count for each potential target base station including a count of transitions from the base station to the potential target base station within a predetermined time period, generating a plurality of relative transition frequencies based on the transition counts, and generating a transition probability for each respective potential target base station based on the relative transition frequency of the potential target base station from the base station.