Abstract: Provided are a method and system for controlling a Raman fiber amplifier. The method comprises: according to a target gain and a tilt, calculating an expected output power of a pump by using a feedforward formula, and obtaining an actual output power of the pump through detection (201); locking the actual output power of the pump to the expected output power through first-stage feedback control (202); according to the target gain and the tilt, calculating an expected ASE power of the pump by using an ASE formula, and obtaining an actual out-of-band ASE power of the pump through detection (203); if the out-of-band ASE is not locked, determining gain compensation and tilt compensation of the pump through second-stage feedback control, and feeding the compensation back to the feedforward formula and the ASE formula for recalculation (204); and repeatedly performing the first-stage feedback control and the second-stage feedback control until the gain and the tilt are locked (205).

Abstract: A method for identification of characteristic components in a Kai-Xin-San by thin-layer chromatography (TLC) is provided, belonging to the technical field of pharmaceutical raw material detection and traditional Chinese medicine quality control. The method only needs to prepare two test solutions to simultaneously identify six characteristic components in the Kai-Xin-San, namely ginsenoside Rb1, ginsenoside Re, tenuifolin, ?-asarone, dehydrotumulosic acid, and pachymic acid. An automatic TLC spotting instrument can ensure even sampling and flat chromatographic bands and the silica gel G thin-layer plates after spotting are placed in the steam of the optimized developing solvent to allow pre-saturation.

Abstract: A multi-functional reconfigurable intelligence surface (MF-RIS) integrating signal reflection, refraction and amplification and energy harvesting and an application thereof are provided. The MF-RIS can support wireless signal reflection, refraction and amplification and energy harvesting on one surface, to amplify, reflect, or refract a signal through harvested energy, and further enhance effective coverage of wireless signals. When a signal model of the MF-RIS constructed in the present disclosure is applied to a multi-user wireless network, a non-convex optimization problem of jointly designing operation modes and parameters that include BS transmit beamforming, and different components and a deployment position of the MF-RIS is constructed with an objective of maximizing a sum rate (SR) of a plurality of users in an MF-RIS-assisted non-orthogonal multiple access network.

Abstract: Disclosed are a strain of Lactobacillus helveticus capable of removing multiple heavy metals and an application thereof in milk powder, where the strain is Lactobacillus helveticus KD-3, which is deposited in the China Center for Type Culture Collection on Apr. 6, 2023, with a deposit number of CCTCC NO: M2023479. The Lactobacillus helveticus KD-3 has a cadmium resistant gene czcD, a chromium resistant gene chrA and a lead resistant gene pbrT, and is capable of tolerating single and compound heavy metals (cadmium, chromium and lead). The Lactobacillus helveticus KD-3 of the present disclosure is used to prepare lyophilized bacterial powder.

Abstract: A display substrate, a manufacturing method thereof, and a display device are provided. The display substrate includes a base substrate, a sub-pixel unit, a data line, a scan line, a plurality of test contact pads, a first peripheral-zone insulating layer and an auxiliary electrode layer. The base substrate includes a display zone and a peripheral zone, the peripheral zone including a test bonding zone. Each of the plurality of the test contact pads includes a first test-contact-pad metal layer and a second test-contact-pad metal layer, wherein the second test-contact-pad metal layer covers the first test-contact-pad metal layer and contacts the first test-contact-pad metal layer in at least portion of a periphery of the first test-contact-pad metal layer. The auxiliary electrode layer includes a plurality of first relay electrode patterns located within the test bonding zone and a plurality of auxiliary electrodes located within the display zone.

Abstract: A semiconductor memory device includes a first wiring extending in a first direction; a second wiring extending in a second direction and spaced from the first wiring in a third direction; a stacked body disposed between the first and second wirings and including conductive layers and insulating layers alternately stacked on top of one another in the third direction; a columnar body extending through the stacked body and including: (a) an electrode disposed between the first wiring and the second wiring, (b) a memory layer disposed between the electrode and the conductive layers, and (c) a selection layer disposed between the electrode and the first wiring; and a diode disposed between the electrode and the second wiring.

Abstract: According to one embodiment, a method, computer system, and computer program product for adjusting an audible area of an avatar's voice is provided. The present invention may include receiving, at a microphone, a source audio; creating a received audio; calculating, by a generative model, a voice propagation distance of a user based on the source audio, the received audio, and a templated text sentence describing a category of a mixed reality environment experienced by the user; drawing a virtual circle within the mixed reality environment centered on a user avatar representing the user and with a radius equal to the voice propagation distance; and transmitting the source audio to one or more participants within the mixed-reality environment represented by one or more participant avatars located within the virtual circle.

Abstract: The present disclosure provides an inversion method for determining a pollution source list based on artificial intelligence and big data, an inversion system for determining the pollution source list based on artificial intelligence and big data, and applications thereof, which provides basic data support for government sectors to formulate relevant environmental protection measures. The specific technical solution employed in the present disclosure is as follows: finding out an emission source that makes the highest contribution to the pollutant concentration of any cell with an advanced 3D CNN artificial intelligence algorithm based on artificial intelligence and big data, establishing a model of the relationship between pollutant concentration and emission, and finding out the relationship between pollutant concentration and emission with machine learning technology, i.e., estimating an emission from a given pollutant concentration, and estimating a pollutant concentration from a given emission.

Abstract: An automatic dropping lubricating device comprises a tank body, a stirring mechanism, a filter mechanism and an intermittent mechanism, a drive motor is fixedly connected to the middle of the right side wall of the tank body, the stirring mechanism is rotationally connected to the middle of an inner cavity of the tank body, the filter mechanism is fixedly connected to the middle of a charging pipe, and the intermittent mechanism is arranged on the right side of the bottom of the tank body. The invention drives a telescopic rod to rotate so that the telescopic rod props against a trigger slider for sliding and the trigger slider drives a movable plate to slide; when the movable plate slides, a connecting pipe slides in a second chute, and finally the connecting pipe is connected to a dropping port while a dropping pipe is connected to the connecting pipe.

Abstract: Methods, systems, and computer-readable storage media for receiving, by a cross-process scheduling engine executed within a cloud platform, work scenario metadata and sensitivity metadata, generating, by the cross-process scheduling engine, a lineage graph representing relationships between one or more of data and processes to be executed for a work scenario represented by the work scenario metadata, defining, by the cross-process scheduling engine, a set of tile segments for the work scenario based on the lineage graph and the sensitivity metadata, dispatching, by the cross-process scheduling engine, a first sub-set of tile segments for execution in a private deployment including one or more private nodes, and dispatching, by the cross-process scheduling engine, a second sub-set of tile segments for execution in a public deployment including one or more public nodes.

Abstract: The present disclosure provides a multi-excitation-source axial-flux permanent-magnet motor with partitioned, hierarchical, and variable poles, and a variable-condition driving control system. The motor mainly includes a main magnetic pole and an auxiliary magnetic pole. The main magnetic pole is responsible for providing a main air gap flux and is connected in series with a dual-stator magnetic circuit. The auxiliary magnetic pole is responsible for adjusting an air gap field and is connected in parallel with the dual-stator magnetic circuit. Magnetic fluxes of the main magnetic pole and the auxiliary magnetic pole together constitute the air gap field. The present disclosure can control a flux path of the auxiliary magnetic pole by controlling the magnitude of a current applied to a field winding, thereby adjusting an air gap flux, expanding a speed range of the motor, and achieving variable-condition operation of the motor.

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer storage media, for enabling user equipment (UE) and a base station (BS) to communicate using a set of frequency resources in which a subset of frequency resources include a phase tracking reference signal (PTRS). In one aspect, the UE may measure the PTRS in the subset of frequency resources, and select a phase noise compensation that is used to demodulate a communication from the BS. The subset of frequency resources may be selected from the set frequency resources based on channel conditions of different subsets of frequency resources. The BS may provide an indication of the selected subset of frequency resources to the UE, such as in control information that schedules the communication from the BS.

Abstract: This application relates to wireless communications, including methods and apparatus to manage uplink (UL) transmit switching with multiple timing advance groups (TAGs) for wireless devices. A wireless device is configured to select N?2 radio frequency carriers for UL transmission from M>N available radio frequency carriers and subsequently send UL transmissions to a cellular wireless network based on the configuration. The M available radio frequency carriers are divided into distinct TAGs, each TAG having a distinct timing advance value, and the N radio frequency carriers belong to a single TAG. The wireless device is further configured to switch to a second set of N UL radio frequency carriers, after an uplink switching gap time period, based on a TAG medium access control (MAC) control element (CE), received the cellular wireless network, which specifies a second TAG from which to select the second set of N UL radio frequency carriers.

Abstract: Provided is an efficient preparation method of a bimetallic seamless composite pipe, and belongs to the technical field of steel pipe manufacture. The efficient preparation method of the bimetallic seamless composite pipe includes following steps: sheathing a base pipe blank on a cladding pipe blank to obtain a composite pipe blank, and carrying out a stress relief annealing treatment on the composite pipe blank, where the base pipe blank and the cladding pipe blank are made of different materials; heating the composite pipe blank after the stress relief annealing treatment to a hot working window temperature, and sheathing on a core rod of an extrusion cylinder after an insulation treatment, and then extruding along an axial direction of the extrusion cylinder to obtain a bimetallic seamless composite pipe.

Abstract: This disclosure provides systems, methods and apparatus for wireless communications that support fallback from a 2-step to a 4-step random access procedures. A user equipment (UE) may establish a connection with a base station using a random access procedure. The random access procedure may be a 2-step random access procedure and reduce a number of handover exchange messages. The 2-step random access procedure may include the UE transmitting, to the base station, a first random access message including a preamble and a payload. In some implementations, the base station may receive the preamble but fail to receive or decode the payload. The random access procedure may utilize the received preamble information instead of performing retransmission of the first random access message. The base station may transmit a second random access message to the UE indicating, explicitly or implicitly, a fallback to a 4-step random access procedure for connection establishment.

Abstract: An elastic intramedullary fixation device includes a serpentine frame and a shell, the inner surface of the shell is rotatably connected with a locking rod, one end of the locking rod is inserted with a key rod, one end of the shell is inserted with a clamping rod, the outer surfaces of the clamping rod and the key rod are sleeved with a connecting sleeve, the outer surfaces of the clamping rod and the key rod are provided with a connecting component, and the surfaces of the clamping rod and the shell are provided with a self-locking component. By configuring a connecting component and a self-locking component, the connecting component not only allows for the adjustment of the positional relationship between the key rod and the clamping rod, but also enables engagement with the locking component, thereby enhancing the stability of the connection between the clamping plate and the shell.

Abstract: A method according to an embodiment is for forming a capacitor structure on a wafer. A first capacitor is formed on a first side of a wafer, and a second capacitor is formed on a second side of the wafer. The capacitor structure includes the first capacitor and the second capacitor. A trench capacitor is fabricated at both ends of an interposer, which can increase capacitance, and greatly improve the stability of the supplied power.