Abstract: A continuous quantitative spraying structure for sterilization of harvested fruits is provided. The continuous quantitative spraying structure includes a track provided thereon with equally spaced trays for conveying fruits, where the trays each include a circular tray body; a central part of the tray body is provided with a central hole allowing the fruit to fall off; a bottom part of the central hole is provided with two parallel rollers; an inner bottom surface of the tray body is provided with a flap; an inner end of a central shaft of the roller passes through the flap, and is fixed to a rolling wheel; a bearing is provided between the roller and the flap; the track is provided with a spraying sterilization section; the spraying sterilization section is sequentially provided with 3 to 4 sets of sterilization nozzles above a tray conveying route.

Abstract: Provided are a water-soluble Pd(II) complex, a synthesis method thereof and use thereof as a catalytic precursor. The complex has a chemical name, ammonium dinitrooxalato palladium (II), and a molecular formula of (NH4)2[Pd(NO2)2(C2O4)]·nH2O (n is the number of crystal water). The Pd(II) complex is synthesized by using PdCl2 or [Pd(NH3)2Cl2] as a starting material which is firstly converted into [Pd(NH3)4]Cl2 in ammonium hydroxide, followed by a chemical reaction between [Pd(NH3)4]Cl2 and excessive NaNO2 to produce trans-[Pd(NH3)2(NO2)2] via ligand substitution mechanism, and finally dissolving trans-[Pd(NH3)2(NO2)2] in an aqueous solution of oxalic acid leads to the formation of the target product (NH4)2[Pd(NO2)2(C2O4)]·2H2O. The complex does not contain chlorine and other elements that are harmful to a catalyst, is readily soluble in water and has a low thermal decomposition temperature.

Abstract: Methods, apparatuses, and computer readable media for a common preamble for wireless local-area networks (WLANs). An apparatus of an access point (AP) or station (STA) comprising processing circuitry configured to encode an AP trigger frame that includes a resource allocation for other APs to transmit trigger frames to perform an uplink or downlink multi-user transmission with stations (STAs). The resource allocation includes information so that the transmissions are coordinated at the physical level to lessen interference among the APs and the stations. The processing is configured to encode a trigger frame for multi-AP request-to-send (RTS), the multi-AP trigger frame comprising for each of a plurality of APs, the trigger frame indicating that each of a plurality of APs are to transmit a physical (PHY) protocol data unit (PPDU) comprising a request-to-send (RTS) or multi-user (MU) RTS (MU-RTS).

Abstract: A continuous quantitative spraying structure for sterilization of harvested fruits is provided. The continuous quantitative spraying structure includes a track provided thereon with equally spaced trays for conveying fruits, where the trays each include a circular tray body; a central part of the tray body is provided with a central hole allowing the fruit to fall off, a bottom part of the central hole is provided with two parallel rollers; an inner bottom surface of the tray body is provided with a flap; an inner end of a central shaft of the roller passes through the flap, and is fixed to a rolling wheel; a bearing is provided between the roller and the flap; the track is provided with a spraying sterilization section; the spraying sterilization section is sequentially provided with 3 to 4 sets of sterilization nozzles above a tray conveying route.

Abstract: Provided are a content search method, apparatus, and device, and a storage medium. The present disclosure enables: receiving a search content; and displaying a plurality of answer viewpoints and first contents in a search result interface, wherein each answer viewpoint corresponds to one category of search results, the search results are results obtained by searching the search content, the first contents comprises keywords, the keywords are used for indicating reasons for displaying a target answer viewpoint among the plurality of answer viewpoints, and the keywords are extracted from a target category of search results corresponding to the target answer viewpoint.

Abstract: Disclosed are a thin film transistor structure, a display panel and a display device. The thin film transistor structure includes a base, a source electrode, a drain electrode configured to connect to a pixel electrode and a grid electrode. The source electrode, the drain electrode and the grid electrode are provided on the base. and a channel is formed between the source electrode and the drain electrode. The thin film transistor structure further includes an insulating layer and a slow-release electrode. The insulating layer is provided on a side of the source electrode and the drain electrode, and filled in the channel. The slow-release electrode is provided in the insulating layer. At least a part of the slow-release electrode is provided inside the channel.

Abstract: Example chat interface creation method and apparatus are described. One example method includes displaying a first group chat interface on a touchscreen of an electronic device. The electronic device receives a first operation in the first group chat interface, and displaying displays a second group chat interface based on the first operation. The first group chat interface is a chat interface of a first chat group, and the first chat group includes a first user who enters the first group chat interface on the electronic device. The second group chat interface is a chat interface of a second chat group, and both the second chat group and the first chat group include the first user.

Abstract: This invention provides an insulin injection device, comprising: a wearable module, a detection module and a drug administration module, wherein the wearable module is used for fixing the detection module and the drug administration module to a body of a user; the detection module is used for detecting a blood glucose concentration of the user, determining a dose of required insulin according to the blood glucose concentration, generating a corresponding drug administration instruction according to the dose of the required insulin, and sending the drug administration instruction to the drug administration module; and the drug administration module is used for storing the insulin and injecting a corresponding dose of insulin into the body of the user according to the drug administration instruction. The device can bring convenience to patients regarding usage.

Abstract: This disclosure describes systems, methods, and devices related to uplink (UL) null data packet (NDP) format for passive location. A device may cause to send a trigger frame that solicits poll response to one or more anchor stations involved in a passive ranging measurement. The device may identify one or more polling response frames received from the one or more anchor stations. The device may cause to send a trigger frame that solicits uplink null data packet (NDP) to the one or more anchor stations, wherein the uplink NDP comprises an indication of a high efficiency (HE) single user (SU) frame type. The device may identify one or more uplink NDPs received from the one or more anchor stations.

Abstract: A thrombelastography device, a heating apparatus, a blood coagulation analysis system, and a rotational angle measurement method are disclosed. The thrombelastography device consists of a plurality of thrombelastography device splits (2) that are horizontally arranged in parallel. The thrombelastography device split (2) comprises a worktable (4), a rack (5), a test bar (6), a tester (8), and a processor (9). The thrombelastography device overcomes the defect in the prior art that the measurement result of a thrombelastography device is inaccurate. The amount of reflected light is used as a reference for thrombelastographic evaluation, and thus the result is more accurate.

Abstract: Embodiments of an Extremely High Throughput Station (EHT STA) (STA1) configured for operating in a next-generation (NG) wireless local area network (WLAN) are described herein. In some embodiments, the EHT STA encodes a common signal field (SIG) (Coex-SIG) of an EHT PPDU to include a TXOP duration field. The TXOP duration field is more than seven bits to indicate an actual TXOP duration of a transmission from the EHT STA comprising the EHT PPDU transmitted to a second station (STA2). Decoding the TXOP duration field of the EHT PPDU by a third-party station (STA4) causes the third-party station (STA4) to defer a transmission until after an end of the transmission from the second station (STA2).

Abstract: Some embodiments provide a method of identifying packet latency in a software defined datacenter (SDDC) that includes a network and multiple host computers executing multiple machines. At a first host computer, the method identifies and stores (i) multiple time values associated with several packet processing operations performed on a particular packet sent by a first machine executing on the first host computer, and (ii) a time value associated with packet transmission through the SDDC network from the first host computer to a second host computer that is a destination of the particular packet. The method provides the stored time values to a set of one or more controllers to process to identify multiple latencies experienced by multiple packets processed in the SDDC.

Abstract: The present disclosure relates to a thermal coupling method for preparing ethylene by ethanol dehydration and device thereof. The device includes an ethanol dehydration reaction system, a quenching compression system, an alkaline washing system, a molecular sieve drying system and an ethylene purification and propylene refrigeration cycle system; ethanol dehydration reaction products in the ethanol dehydration reaction system serve as a heat source for preheating, vaporization and superheating of a raw material of ethanol; tower bottoms of an evaporation tower in the quenching compression system serve as a heat source for preheating of a feed stream of the evaporation tower and heating of an overhead gas of a quenching tower; products of ethylene in the alkaline washing system serve as a cold source for cooling of crude ethylene.

Abstract: This application relates to a method of processing augmented reality (AR) data at a terminal, and a storage medium, and the AR data propagation method includes: receiving AR data, the AR data carrying AR recognition data and being generated by a source terminal; displaying the AR data according to the AR recognition data; in response to receiving a user instruction, updating the AR data according to the user instruction; and sharing the updated AR data with a target terminal. With the solutions provided in this application, users can implement AR interactions with virtual world data by using a terminal with a relatively low configuration.

Abstract: The present invention provides a ceramic wafer with a surface shape and a manufacturing method thereof. The ceramic wafer has an upper surface and a lower surface, and at least one of the upper surface and the lower surface has an irregular surface shape. The total thickness variation (TTV) value between the two surfaces ranges from 0.1 to 100 ?m. The ceramic wafer with the surface shape of the present invention, by controlling the total thickness variation of the wafer, not only helps the coating, but also improves the flow of the fluid, and can improve the bonding force of the coating and reduce the surface defects in the subsequent process.

Abstract: Disclosed in the present invention is an L-glutamate dehydrogenase mutant, the sequence of the L-glutamate dehydrogenase mutant being a sequence in which amino acid residue A at position 175 in SEQ ID NO: 1 is mutated to be G, and amino acid residue V at position 386 is mutated to be an amino acid residue having less steric hindrance. Further disclosed in the present invention is an application of the described L-amino acid dehydrogenase mutant in the preparation of L-glufosinate-ammonium or a salt thereof. When the L-glutamate dehydrogenase mutant of the present invention is used to prepare L-glufosinate-ammonium or a salt thereof, compared to an L-glutamate dehydrogenase mutant in which only position 175 or 386 is mutated, the specific enzyme activity is higher. Therefore, the action efficiency of the enzyme is improved, reaction costs are reduced, and industrial production is facilitated.

Abstract: A bracket a thrombelastography device, and a support system are disclosed. The bracket comprises: a fixed support part (101), a movable support part (102), and a connection part (103). The connection part comprises a first fixing connection member (1031) and a second fixing connection member (1032). The first fixing connection member is fixedly connected to the fixed support part; the second fixing connection member is fixedly connected to the movable support part; the first fixing connection member is connected to the second fixing connection member in point contact fashion, such that the first fixing connection member and the second fixing connection member can rotate relative to each other; the movable support part is fixedly connected to a supported object; when driven by the supported object, the movable support part rotates relative to the fixed support part by means of the point contact between the first fixing connection member and the second fixing connection member.

Abstract: This disclosure describes systems, methods, and devices related to enhanced feedback for secure mode wireless communications. A device may send a first null data packet (NDP) to a second device, and identify a second NDP received from the second device. The device may identify a location measurement report (LMR) received from the second device, the LMR including a first channel response indicative of a first arrival time of the first NDP at the second device and a first phase shift associated with the first NDP. The device may generate a second channel response indicative of a second arrival time of the second NDP at the device and a second phase shift associated with the second NDP. The device may determine that the first channel response does not match the second channel response, and may identify an attempted attack.

Abstract: This disclosure describes systems, methods, and devices related to enhanced sounding for secure mode wireless communications. A device may generate a channel sounding symbol comprising a first subcarrier and a second subcarrier, wherein a first amplitude of the first subcarrier is different than a second amplitude of the second subcarrier. The device may generate a channel sounding signal comprising the channel sounding symbol. The device may send the channel sounding signal to a second device.