Abstract: A refrigerator includes a refrigerator body and a door body. In a case where the door body is opened from a closed state to a first state, a first hinge shaft moves from a first positioning position to a second positioning position along a first positioning trajectory line with respect to a first trajectory slot, and a second hinge shaft moves from a first guiding position to a second guiding position along a first guiding trajectory line with respect to a second trajectory slot. In a case where the door body continues to be opened from the first state to a second state, the first hinge shaft moves from the second positioning position to a third positioning position along a second positioning trajectory line, the second hinge shaft moves from the second guiding position to a third guiding position along a second guiding trajectory line.

Abstract: A method produces tantalum powder. The method includes: (1) uniformly mixing a tantalum powder raw material, metal magnesium and at least one alkali metal and/or alkaline earth metal halide, loading the mixture into a container, and putting the container in a furnace; (2) raising the temperature of the furnace to 600-1200° C. in the presence of inert gas, and soaking; (3) at the end of soaking, lowering the temperature of the furnace to 600-800° C., vacuumizing the interior of the furnace to 10 Pa or less, soaking under the negative pressure so that the excessive metal is separated; (4) thereafter, raising the temperature of the furnace to 750-1200° C. in the presence of inert gas, and soaking so that the tantalum powder is sintered in the molten salt after oxygen reduction; (5) then cooling to room temperature and passivating to obtain a mixed material containing halide and tantalum powder; and (6) separating the tantalum powder from the resulting mixture.

Abstract: This application discloses a terminal roaming control method and apparatus and a roaming policy library generation method and apparatus. The method includes: A gateway device obtains a roaming policy library; obtains, based on the roaming policy library, a first roaming policy matching a first terminal, where the first terminal is a terminal communicatively connected to the gateway device; and controls the first terminal to roam according to the first roaming policy.

Abstract: Disclosed is the use of a water-soluble realgar solid dispersion in the preparation of an erythroid differentiation inducer for bone marrow hematopoietic stem cells and/or bone marrow hematopoietic progenitor cells. The water-soluble realgar solid dispersion is prepared from raw materials comprising 1 part by weight of realgar, 1-20 parts by weight of a polymer, and 0-5 parts by weight of a surfactant. The water-soluble realgar solid dispersion can induce bone marrow hematopoietic stem and/or progenitor cells to be differentiated into red blood cells, promote the accumulation of red blood cells in bone marrow cells, effectively alleviate the decrease in the number of red blood cells caused by the suppression of the erythroid differentiation of bone marrow hematopoietic stem and/or progenitor cells, improve anemia caused by hematopoietic failure, and protect bone marrow cells from the killing effect.

Abstract: Base station antennas are provided. A base station antenna includes a reflector that has a plurality of faces that face in different directions. The base station antenna includes a plurality of arrays of radiating elements that are on the faces, respectively, of the reflector. Moreover, the base station antenna includes a plurality of parasitic elements that are on the faces. Related methods of operating a base station antenna are also provided.

Abstract: The present disclosure relates to mode switching methods, data flow splitting methods, and apparatus. One example mode switching method includes generating, by a first device, first indication information, where a packet data control protocol (PDCP) entity in the first device is connected to at least two radio link control (RLC) entities in a second device, and sending, by the first device, the first indication information to the second device, where the first indication information is used to indicate that transmission between a first RLC entity in the at least two RLC entities and the PDCP entity in the first device is to be canceled. The second device stops the transmission between the first RLC entity and the PDCP entity based on the first indication information.

Abstract: A display includes a polygonal display region and a plurality of non-display portions. The non-display portions are coupled to side edges of the display region in a one-to-one correspondence. At least two of the non-display portions are bent to a back side of the display region. When the non-display portions bent to the back side include adjacent non-display portions, there is an opening between two adjacent non-display portions.

Abstract: A computer-implemented method of determining the number of photons contributing to an output of a photonic sensor, including receiving an electrical signal from the photonic sensor proportional to a number of photons the photonic sensor detects at its input as a function of time, wherein the photonic sensor is calibrated such that a response of the photonic sensor to a single photon detected is in a waveform comprising an amplitude and time, wherein the product amplitude X time is statistically bounded, determining a probabilistic boundary between one or more of electrical, optical, and thermal sources of noise of the sensor, acquiring each response wave form from the sensor through analog-to-digital conversion with a resolution in amplitude and time corresponding to accuracy required in quantifying the response, storing each acquired response, individually, in real-time, or in buffered packets in digital form, determining the number of photons for a specific time resolved acquisition, and effecting a summati

Abstract: Provided is a two-stage reverse-torque bent screw orientation tool. An existing bent screw orientation technology has the technical problems of large friction resistance, difficult control of a borehole track, a low drilling speed and the like, and restricts economic, safe and long-acting development of oil and gas. In order to solve the above problems, the two-stage reverse-torque bent screw orientation tool is invented and composed of a first-stage clutch mechanism and a second-stage clutch mechanism, and the first-stage clutch mechanism and the second-stage clutch mechanism are both composed of a battery, a battery compartment, a pressure sensor, an electromagnetic valve, a body, a plug, a piston, an outer tooth cylinder, an inner tooth cylinder, a transmission cylinder, a connecting cylinder, a bearing, a limiting cylinder, a lower joint, a thrust bearing, a battery compartment, a circuit board, a cover plate and the like.

Abstract: Disclosed are a wireless remote control method and system for controllable rotary sliding guiding drilling. An upper end of a controllable rotary sliding guiding drilling mechanism is provided with a drill rod; and the wireless remote control system for controllable rotary sliding guiding drilling further comprises: an MWD arranged at a lower end of the controllable rotary sliding guiding drilling mechanism; a bent screw drill tool mounted at a lower end of the MWD; a drill bit mounted at a lower end of the bent screw drill tool, the drill bit being connected with the bent screw drill tool through a connector; and a clutch module mounted on the controllable rotary sliding guiding drilling mechanism, the clutch module comprising an electromagnetic valve, a processor, an internal pipe pressure sensor, an external pipe pressure sensor and a wireless data transmission module.

Abstract: The present invention relates to the field of medical biology, and discloses a single domain antibody and derivative proteins thereof against CTLA4. In particular, the present invention discloses a CTLA4 binding protein and the use thereof, especially the use for treating and/or preventing CTLA4 relevant diseases such as tumor.

Abstract: A method for reinforcement learning (RL) of continuous actions. The method may include receiving a state as input to at least one actor network to predict candidate actions based on the state, wherein the state is a current observation; outputting the candidate actions from the at least one actor network; receiving the state and the candidate actions as inputs to a plurality of distributional critic networks, wherein the plurality of distributional critic networks calculates quantiles of a return distribution associated with the candidate actions in relation to the state; outputting the quantiles from the plurality of distributional critic networks; and selecting an output action based on the candidate actions and the quantiles.

Abstract: An adjustable head rail device of a spring assisted cordless roller blind includes a spring and a limiting assembly, the spring is indirectly connected to a roller blind fabric to provide the roller blind fabric with a pulling force that balances its own gravity; the limiting assembly abuts against a middle portion of the spring, and the limiting assembly applies a radial pressure to the spring, so that the abutted portion of the spring is converted from an elastic member to a rigid member, and is not elastically deformable; the limiting assembly is movable in an axial direction of the spring to adjust a position of the abutted portion of the spring, which can realize an adjustable working length of the spring arranged in the head rail device, and can adapt to the roller blinds with different widths, materials and lengths, with a wide application range.

Abstract: Methods of determining and controlling the deformability of ceramic materials, as a nonlimiting example, YSZ, particularly through the application of a flash sintering process, and to ceramic materials produced by such methods. Such a method includes providing a nanocrystalline powder of a ceramic material, making a compact of the powder, and subjecting the compact to flash sintering by applying an electric field and thermal energy to the compact.

Abstract: A method includes generating, using a neural network, a point-level feature vector for each point of a point cloud and a set-level feature vector for the point cloud. A representative position is generated based on the point-level feature vectors and on the set-level feature vector. The representative position and the set-level feature vector is output as a set descriptor.

Abstract: A method for detecting an anomaly in time series sensor data. The method may include identifying a noisiest cycle from the time series sensor data; for an evaluation of the noisiest cycle indicative of the anomaly being detected at a confidence level above a threshold, providing an output associated with the noisiest cycle as being the anomaly; and for the evaluation of the noisiest cycle indicative of the anomaly being detected at the confidence level not above the threshold: identifying a cycle from the time series sensor data having a most differing shape; and providing the output associated with the cycle having the most differing shape as being the anomaly.

Abstract: Techniques for digital messaging with rule-driven attachments are disclosed, including: obtaining a message assembly rule including a set of one or more message attachment criteria; encountering an instance of a set of one or more message transmission triggers being satisfied; responsive to encountering the instance of the set of one or more message transmission triggers being satisfied: querying a data repository to identify multiple attachable data items that satisfy the set of one or more message attachment criteria; generating a message including the attachable data items; transmitting the message to a recipient.

Abstract: K-nearest multi-agent reinforcement learning for collaborative tasks with variable numbers of agents. Centralized reinforcement learning is challenged by variable numbers of agents, whereas decentralized reinforcement learning is challenged by dependencies among agents' actions. An algorithm is disclosed that can address both of these challenges, among others, by grouping agents with their k-nearest agents during training and operation of a policy network. The observations of all k+1 agents in each group are used as the input to the policy network to determine the next action tor each of the k+1 agents in the group. When an agent belongs to more than one group, such that multiple actions are determined for the agent, an aggregation strategy can be used to determine the final action for that agent.